From 2a299a628e3a0828838189324b46320443d31026 Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Fri, 21 Aug 2020 16:51:34 +0800
Subject: [PATCH] Update some build.sh shell script for create install path
---
/dev/null | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/3rdparty/libpng/libpng-1.6.37.tar.gz b/3rdparty/libpng/libpng-1.6.37.tar.gz
deleted file mode 100644
index 54b0f81..0000000
--- a/3rdparty/libpng/libpng-1.6.37.tar.gz
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/png.Plo b/3rdparty/libpng/libpng-1.6.37/.deps/png.Plo
deleted file mode 100644
index 3bef0d1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/png.Plo
+++ /dev/null
@@ -1,134 +0,0 @@
-png.lo: png.c pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- config.h pnglibconf.h png.h pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h \
- pnginfo.h pngdebug.h
-
-pngpriv.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
-
-config.h:
-
-pnglibconf.h:
-
-png.h:
-
-pngconf.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
-
-pngstruct.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
-
-pnginfo.h:
-
-pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/pngerror.Plo b/3rdparty/libpng/libpng-1.6.37/.deps/pngerror.Plo
deleted file mode 100644
index 46b3e5a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/pngerror.Plo
+++ /dev/null
@@ -1,134 +0,0 @@
-pngerror.lo: pngerror.c pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- config.h pnglibconf.h png.h pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h \
- pnginfo.h pngdebug.h
-
-pngpriv.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
-
-config.h:
-
-pnglibconf.h:
-
-png.h:
-
-pngconf.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
-
-pngstruct.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
-
-pnginfo.h:
-
-pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/pngget.Plo b/3rdparty/libpng/libpng-1.6.37/.deps/pngget.Plo
deleted file mode 100644
index ce03a13..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/pngget.Plo
+++ /dev/null
@@ -1,134 +0,0 @@
-pngget.lo: pngget.c pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- config.h pnglibconf.h png.h pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h \
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diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/pngmem.Plo b/3rdparty/libpng/libpng-1.6.37/.deps/pngmem.Plo
deleted file mode 100644
index bc76f8c..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/pngmem.Plo
+++ /dev/null
@@ -1,134 +0,0 @@
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diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/pngpread.Plo b/3rdparty/libpng/libpng-1.6.37/.deps/pngpread.Plo
deleted file mode 100644
index 6c0fd40..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/pngpread.Plo
+++ /dev/null
@@ -1,134 +0,0 @@
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diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/pngread.Plo b/3rdparty/libpng/libpng-1.6.37/.deps/pngread.Plo
deleted file mode 100644
index df58799..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/pngread.Plo
+++ /dev/null
@@ -1,152 +0,0 @@
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno-base.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/pngrio.Plo b/3rdparty/libpng/libpng-1.6.37/.deps/pngrio.Plo
deleted file mode 100644
index 74f2e44..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/pngrio.Plo
+++ /dev/null
@@ -1,134 +0,0 @@
-pngrio.lo: pngrio.c pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
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- config.h pnglibconf.h png.h pngconf.h \
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- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
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- pngstruct.h \
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diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/pngrtran.Plo b/3rdparty/libpng/libpng-1.6.37/.deps/pngrtran.Plo
deleted file mode 100644
index c810809..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/pngrtran.Plo
+++ /dev/null
@@ -1,134 +0,0 @@
-pngrtran.lo: pngrtran.c pngpriv.h \
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- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h \
- pnginfo.h pngdebug.h
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-pngpriv.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h:
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-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
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-config.h:
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-pnglibconf.h:
-
-png.h:
-
-pngconf.h:
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-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
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-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
-
-pngstruct.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
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-pnginfo.h:
-
-pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/pngrutil.Plo b/3rdparty/libpng/libpng-1.6.37/.deps/pngrutil.Plo
deleted file mode 100644
index 25d3592..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/pngrutil.Plo
+++ /dev/null
@@ -1,134 +0,0 @@
-pngrutil.lo: pngrutil.c pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- config.h pnglibconf.h png.h pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h \
- pnginfo.h pngdebug.h
-
-pngpriv.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
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-pnglibconf.h:
-
-png.h:
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-pngconf.h:
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-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
-
-pngstruct.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
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-pnginfo.h:
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-pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/pngset.Plo b/3rdparty/libpng/libpng-1.6.37/.deps/pngset.Plo
deleted file mode 100644
index bc76537..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/pngset.Plo
+++ /dev/null
@@ -1,134 +0,0 @@
-pngset.lo: pngset.c pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- config.h pnglibconf.h png.h pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h \
- pnginfo.h pngdebug.h
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
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-pngstruct.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
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-pnginfo.h:
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-pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/pngtest.Po b/3rdparty/libpng/libpng-1.6.37/.deps/pngtest.Po
deleted file mode 100644
index c0349c8..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/pngtest.Po
+++ /dev/null
@@ -1,107 +0,0 @@
-pngtest.o: pngtest.c \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
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-png.h:
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-pnglibconf.h:
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-pngconf.h:
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-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/pngtrans.Plo b/3rdparty/libpng/libpng-1.6.37/.deps/pngtrans.Plo
deleted file mode 100644
index e913b23..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/pngtrans.Plo
+++ /dev/null
@@ -1,134 +0,0 @@
-pngtrans.lo: pngtrans.c pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- config.h pnglibconf.h png.h pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h \
- pnginfo.h pngdebug.h
-
-pngpriv.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
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-config.h:
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-pnglibconf.h:
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-png.h:
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-pngconf.h:
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-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
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-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
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-
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
-
-pngstruct.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
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-pnginfo.h:
-
-pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/pngwio.Plo b/3rdparty/libpng/libpng-1.6.37/.deps/pngwio.Plo
deleted file mode 100644
index c2cecb6..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/pngwio.Plo
+++ /dev/null
@@ -1,134 +0,0 @@
-pngwio.lo: pngwio.c pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- config.h pnglibconf.h png.h pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
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- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
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-pngstruct.h:
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-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
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-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
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-pnginfo.h:
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-pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/pngwrite.Plo b/3rdparty/libpng/libpng-1.6.37/.deps/pngwrite.Plo
deleted file mode 100644
index a374b2e..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/pngwrite.Plo
+++ /dev/null
@@ -1,152 +0,0 @@
-pngwrite.lo: pngwrite.c pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
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- config.h pnglibconf.h png.h pngconf.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno.h:
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diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/pngwtran.Plo b/3rdparty/libpng/libpng-1.6.37/.deps/pngwtran.Plo
deleted file mode 100644
index 56a3462..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/pngwtran.Plo
+++ /dev/null
@@ -1,134 +0,0 @@
-pngwtran.lo: pngwtran.c pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
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- pnginfo.h pngdebug.h
-
-pngpriv.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
-
-config.h:
-
-pnglibconf.h:
-
-png.h:
-
-pngconf.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
-
-pngstruct.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
-
-pnginfo.h:
-
-pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/.deps/pngwutil.Plo b/3rdparty/libpng/libpng-1.6.37/.deps/pngwutil.Plo
deleted file mode 100644
index d8bbea6..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.deps/pngwutil.Plo
+++ /dev/null
@@ -1,134 +0,0 @@
-pngwutil.lo: pngwutil.c pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- config.h pnglibconf.h png.h pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h \
- pnginfo.h pngdebug.h
-
-pngpriv.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
-
-config.h:
-
-pnglibconf.h:
-
-png.h:
-
-pngconf.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
-
-pngstruct.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
-
-pnginfo.h:
-
-pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.a b/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.a
deleted file mode 100644
index aad1373..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.a
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.la b/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.la
deleted file mode 120000
index ae6263a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.la
+++ /dev/null
@@ -1 +0,0 @@
-../libpng16.la
\ No newline at end of file
diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.lai b/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.lai
deleted file mode 100644
index 62f0a0d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.lai
+++ /dev/null
@@ -1,41 +0,0 @@
-# libpng16.la - a libtool library file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# The name that we can dlopen(3).
-dlname='libpng16.so.16'
-
-# Names of this library.
-library_names='libpng16.so.16.37.0 libpng16.so.16 libpng16.so'
-
-# The name of the static archive.
-old_library='libpng16.a'
-
-# Linker flags that cannot go in dependency_libs.
-inherited_linker_flags=''
-
-# Libraries that this one depends upon.
-dependency_libs=' -L/home/guowenxue/fl2440/3rdparty/libpng/../install//lib -lz -lm'
-
-# Names of additional weak libraries provided by this library
-weak_library_names=''
-
-# Version information for libpng16.
-current=53
-age=37
-revision=0
-
-# Is this an already installed library?
-installed=yes
-
-# Should we warn about portability when linking against -modules?
-shouldnotlink=no
-
-# Files to dlopen/dlpreopen
-dlopen=''
-dlpreopen=''
-
-# Directory that this library needs to be installed in:
-libdir='/home/guowenxue/fl2440/3rdparty/libpng/../install/lib'
diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.so b/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.so
deleted file mode 120000
index a5196c4..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.so
+++ /dev/null
@@ -1 +0,0 @@
-libpng16.so.16.37.0
\ No newline at end of file
diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.so.16 b/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.so.16
deleted file mode 120000
index a5196c4..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.so.16
+++ /dev/null
@@ -1 +0,0 @@
-libpng16.so.16.37.0
\ No newline at end of file
diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.so.16.37.0 b/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.so.16.37.0
deleted file mode 100755
index 89e956e..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.libs/libpng16.so.16.37.0
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/png.o b/3rdparty/libpng/libpng-1.6.37/.libs/png.o
deleted file mode 100644
index 498e109..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.libs/png.o
+++ /dev/null
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngcp b/3rdparty/libpng/libpng-1.6.37/.libs/pngcp
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--- a/3rdparty/libpng/libpng-1.6.37/.libs/pngcp
+++ /dev/null
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngerror.o b/3rdparty/libpng/libpng-1.6.37/.libs/pngerror.o
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--- a/3rdparty/libpng/libpng-1.6.37/.libs/pngerror.o
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngfix b/3rdparty/libpng/libpng-1.6.37/.libs/pngfix
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--- a/3rdparty/libpng/libpng-1.6.37/.libs/pngfix
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngget.o b/3rdparty/libpng/libpng-1.6.37/.libs/pngget.o
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index 64e43fa..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.libs/pngget.o
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngimage b/3rdparty/libpng/libpng-1.6.37/.libs/pngimage
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index 4b694c3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.libs/pngimage
+++ /dev/null
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngmem.o b/3rdparty/libpng/libpng-1.6.37/.libs/pngmem.o
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--- a/3rdparty/libpng/libpng-1.6.37/.libs/pngmem.o
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngpread.o b/3rdparty/libpng/libpng-1.6.37/.libs/pngpread.o
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngrio.o b/3rdparty/libpng/libpng-1.6.37/.libs/pngrio.o
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngrtran.o b/3rdparty/libpng/libpng-1.6.37/.libs/pngrtran.o
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--- a/3rdparty/libpng/libpng-1.6.37/.libs/pngrtran.o
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngrutil.o b/3rdparty/libpng/libpng-1.6.37/.libs/pngrutil.o
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngset.o b/3rdparty/libpng/libpng-1.6.37/.libs/pngset.o
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--- a/3rdparty/libpng/libpng-1.6.37/.libs/pngset.o
+++ /dev/null
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngstest b/3rdparty/libpng/libpng-1.6.37/.libs/pngstest
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngtest b/3rdparty/libpng/libpng-1.6.37/.libs/pngtest
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngtrans.o b/3rdparty/libpng/libpng-1.6.37/.libs/pngtrans.o
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--- a/3rdparty/libpng/libpng-1.6.37/.libs/pngwio.o
+++ /dev/null
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngwrite.o b/3rdparty/libpng/libpng-1.6.37/.libs/pngwrite.o
deleted file mode 100644
index abc2066..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.libs/pngwrite.o
+++ /dev/null
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngwtran.o b/3rdparty/libpng/libpng-1.6.37/.libs/pngwtran.o
deleted file mode 100644
index 6cc1297..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.libs/pngwtran.o
+++ /dev/null
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diff --git a/3rdparty/libpng/libpng-1.6.37/.libs/pngwutil.o b/3rdparty/libpng/libpng-1.6.37/.libs/pngwutil.o
deleted file mode 100644
index cb84279..0000000
--- a/3rdparty/libpng/libpng-1.6.37/.libs/pngwutil.o
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diff --git a/3rdparty/libpng/libpng-1.6.37/ANNOUNCE b/3rdparty/libpng/libpng-1.6.37/ANNOUNCE
deleted file mode 100644
index ecf9c70..0000000
--- a/3rdparty/libpng/libpng-1.6.37/ANNOUNCE
+++ /dev/null
@@ -1,47 +0,0 @@
-libpng 1.6.37 - April 14, 2019
-==============================
-
-This is a public release of libpng, intended for use in production code.
-
-
-Files available for download
-----------------------------
-
-Source files with LF line endings (for Unix/Linux):
-
- * libpng-1.6.37.tar.xz (LZMA-compressed, recommended)
- * libpng-1.6.37.tar.gz
-
-Source files with CRLF line endings (for Windows):
-
- * lp1637.7z (LZMA-compressed, recommended)
- * lp1637.zip
-
-Other information:
-
- * README.md
- * LICENSE.md
- * AUTHORS.md
- * TRADEMARK.md
-
-
-Changes since the previous public release (version 1.6.36)
-----------------------------------------------------------
-
- * Fixed a use-after-free vulnerability (CVE-2019-7317) in png_image_free.
- * Fixed a memory leak in the ARM NEON implementation of png_do_expand_palette.
- * Fixed a memory leak in pngtest.c.
- * Fixed two vulnerabilities (CVE-2018-14048, CVE-2018-14550) in
- contrib/pngminus; refactor.
- * Changed the license of contrib/pngminus to MIT; refresh makefile and docs.
- (Contributed by Willem van Schaik)
- * Fixed a typo in the libpng license v2.
- (Contributed by Miguel Ojeda)
- * Added makefiles for AddressSanitizer-enabled builds.
- * Cleaned up various makefiles.
-
-
-Send comments/corrections/commendations to png-mng-implement at lists.sf.net.
-Subscription is required; visit
-https://lists.sourceforge.net/lists/listinfo/png-mng-implement
-to subscribe.
diff --git a/3rdparty/libpng/libpng-1.6.37/AUTHORS b/3rdparty/libpng/libpng-1.6.37/AUTHORS
deleted file mode 100644
index 79a3d10..0000000
--- a/3rdparty/libpng/libpng-1.6.37/AUTHORS
+++ /dev/null
@@ -1,45 +0,0 @@
-PNG REFERENCE LIBRARY AUTHORS
-=============================
-
-This is the list of PNG Reference Library ("libpng") Contributing
-Authors, for copyright and licensing purposes.
-
- * Andreas Dilger
- * Cosmin Truta
- * Dave Martindale
- * Eric S. Raymond
- * Gilles Vollant
- * Glenn Randers-Pehrson
- * Greg Roelofs
- * Guy Eric Schalnat
- * James Yu
- * John Bowler
- * Kevin Bracey
- * Magnus Holmgren
- * Mandar Sahastrabuddhe
- * Mans Rullgard
- * Matt Sarett
- * Mike Klein
- * Paul Schmidt
- * Sam Bushell
- * Samuel Williams
- * Simon-Pierre Cadieux
- * Tim Wegner
- * Tom Lane
- * Tom Tanner
- * Vadim Barkov
- * Willem van Schaik
- * Zhijie Liang
- * Arm Holdings
- - Richard Townsend
- * Google Inc.
- - Matt Sarett
- - Mike Klein
-
-The build projects, the build scripts, the test scripts, and other
-files in the "projects", "scripts" and "tests" directories, have other
-copyright owners, but are released under the libpng license.
-
-Some files in the "contrib" directory, and some tools-generated files
-that are distributed with libpng, have other copyright owners, and are
-released under other open source licenses.
diff --git a/3rdparty/libpng/libpng-1.6.37/CHANGES b/3rdparty/libpng/libpng-1.6.37/CHANGES
deleted file mode 100644
index f0b0a93..0000000
--- a/3rdparty/libpng/libpng-1.6.37/CHANGES
+++ /dev/null
@@ -1,6109 +0,0 @@
-CHANGES - changes for libpng
-
-version 0.1 [March 29, 1995]
- initial work-in-progress release
-
-version 0.2 [April 1, 1995]
- added reader into png.h
- fixed small problems in stub file
-
-version 0.3 [April 8, 1995]
- added pull reader
- split up pngwrite.c to several files
- added pnglib.txt
- added example.c
- cleaned up writer, adding a few new transformations
- fixed some bugs in writer
- interfaced with zlib 0.5
- added K&R support
- added check for 64 KB blocks for 16 bit machines
-
-version 0.4 [April 26, 1995]
- cleaned up code and commented code
- simplified time handling into png_time
- created png_color_16 and png_color_8 to handle color needs
- cleaned up color type defines
- fixed various bugs
- made various names more consistent
- interfaced with zlib 0.71
- cleaned up zTXt reader and writer (using zlib's Reset functions)
- split transformations into pngrtran.c and pngwtran.c
-
-version 0.5 [April 30, 1995]
- interfaced with zlib 0.8
- fixed many reading and writing bugs
- saved using 3 spaces instead of tabs
-
-version 0.6 [May 1, 1995]
- first beta release
- added png_large_malloc() and png_large_free()
- added png_size_t
- cleaned up some compiler warnings
- added png_start_read_image()
-
-version 0.7 [June 24, 1995]
- cleaned up lots of bugs
- finished dithering and other stuff
- added test program
- changed name from pnglib to libpng
-
-version 0.71 [June 26, 1995]
- changed pngtest.png for zlib 0.93
- fixed error in libpng.txt and example.c
-
-version 0.8 [August 20, 1995]
- cleaned up some bugs
- added png_set_filler()
- split up pngstub.c into pngmem.c, pngio.c, and pngerror.c
- added #define's to remove unwanted code
- moved png_info_init() to png.c
- added old_size into png_realloc()
- added functions to manually set filtering and compression info
- changed compression parameters based on image type
- optimized filter selection code
- added version info
- changed external functions passing floats to doubles (k&r problems?)
- put all the configurable stuff in pngconf.h
- enabled png_set_shift to work with paletted images on read
- added png_read_update_info() - updates info structure with transformations
-
-Version 0.81 [August, 1995]
- incorporated Tim Wegner's medium model code (thanks, Tim)
-
-Version 0.82 [September, 1995]
- [unspecified changes]
-
-Version 0.85 [December, 1995]
- added more medium model code (almost everything's a far)
- added i/o, error, and memory callback functions
- fixed some bugs (16-bit, 4-bit interlaced, etc.)
- added first run progressive reader (barely tested)
-
-Version 0.86 [January, 1996]
- fixed bugs
- improved documentation
-
-Version 0.87 [January, 1996]
- fixed medium model bugs
- fixed other bugs introduced in 0.85 and 0.86
- added some minor documentation
-
-Version 0.88 [January, 1996]
- fixed progressive bugs
- replaced tabs with spaces
- cleaned up documentation
- added callbacks for read/write and warning/error functions
-
-Version 0.89 [June 5, 1996]
- Added new initialization API to make libpng work better with shared libs
- we now have png_create_read_struct(), png_create_write_struct(),
- png_create_info_struct(), png_destroy_read_struct(), and
- png_destroy_write_struct() instead of the separate calls to
- malloc and png_read_init(), png_info_init(), and png_write_init()
- Changed warning/error callback functions to fix bug - this means you
- should use the new initialization API if you were using the old
- png_set_message_fn() calls, and that the old API no longer exists
- so that people are aware that they need to change their code
- Changed filter selection API to allow selection of multiple filters
- since it didn't work in previous versions of libpng anyways
- Optimized filter selection code
- Fixed png_set_background() to allow using an arbitrary RGB color for
- paletted images
- Fixed gamma and background correction for paletted images, so
- png_correct_palette is not needed unless you are correcting an
- external palette (you will need to #define PNG_CORRECT_PALETTE_SUPPORTED
- in pngconf.h) - if nobody uses this, it may disappear in the future.
- Fixed bug with Borland 64K memory allocation (Alexander Lehmann)
- Fixed bug in interlace handling (Smarasderagd, I think)
- Added more error checking for writing and image to reduce invalid files
- Separated read and write functions so that they won't both be linked
- into a binary when only reading or writing functionality is used
- New pngtest image also has interlacing and zTXt
- Updated documentation to reflect new API
-
-Version 0.89c [June 17, 1996]
- Bug fixes.
-
-Version 0.90 [January, 1997]
- Made CRC errors/warnings on critical and ancillary chunks configurable
- libpng will use the zlib CRC routines by (compile-time) default
- Changed DOS small/medium model memory support - needs zlib 1.04 (Tim Wegner)
- Added external C++ wrapper statements to png.h (Gilles Dauphin)
- Allow PNG file to be read when some or all of file signature has already
- been read from the beginning of the stream. ****This affects the size
- of info_struct and invalidates all programs that use a shared libpng****
- Fixed png_filler() declarations
- Fixed? background color conversions
- Fixed order of error function pointers to match documentation
- Current chunk name is now available in png_struct to reduce the number
- of nearly identical error messages (will simplify multi-lingual
- support when available)
- Try to get ready for unknown-chunk callback functions:
- - previously read critical chunks are flagged, so the chunk handling
- routines can determine if the chunk is in the right place
- - all chunk handling routines have the same prototypes, so we will
- be able to handle all chunks via a callback mechanism
- Try to fix Linux "setjmp" buffer size problems
- Removed png_large_malloc, png_large_free, and png_realloc functions.
-
-Version 0.95 [March, 1997]
- Fixed bug in pngwutil.c allocating "up_row" twice and "avg_row" never
- Fixed bug in PNG file signature compares when start != 0
- Changed parameter type of png_set_filler(...filler...) from png_byte
- to png_uint_32
- Added test for MACOS to ensure that both math.h and fp.h are not #included
- Added macros for libpng to be compiled as a Windows DLL (Andreas Kupries)
- Added "packswap" transformation, which changes the endianness of
- packed-pixel bytes (Kevin Bracey)
- Added "strip_alpha" transformation, which removes the alpha channel of
- input images without using it (not necessarily a good idea)
- Added "swap_alpha" transformation, which puts the alpha channel in front
- of the color bytes instead of after
- Removed all implicit variable tests which assume NULL == 0 (I think)
- Changed several variables to "png_size_t" to show 16/32-bit limitations
- Added new pCAL chunk read/write support
- Added experimental filter selection weighting (Greg Roelofs)
- Removed old png_set_rgbx() and png_set_xrgb() functions that have been
- obsolete for about 2 years now (use png_set_filler() instead)
- Added macros to read 16- and 32-bit ints directly from buffer, to be
- used only on those systems that support it (namely PowerPC and 680x0)
- With some testing, this may become the default for MACOS/PPC systems.
- Only calculate CRC on data if we are going to use it
- Added macros for zTXt compression type PNG_zTXt_COMPRESSION_???
- Added macros for simple libpng debugging output selectable at compile time
- Removed PNG_READ_END_MODE in progressive reader (Smarasderagd)
- More description of info_struct in libpng.txt and png.h
- More instructions in example.c
- More chunk types tested in pngtest.c
- Renamed pngrcb.c to pngset.c, and all png_read_<chunk> functions to be
- png_set_<chunk>. We now have corresponding png_get_<chunk>
- functions in pngget.c to get information in info_ptr. This isolates
- the application from the internal organization of png_info_struct
- (good for shared library implementations).
-
-Version 0.96 [May, 1997]
- Fixed serious bug with < 8bpp images introduced in 0.95
- Fixed 256-color transparency bug (Greg Roelofs)
- Fixed up documentation (Greg Roelofs, Laszlo Nyul)
- Fixed "error" in pngconf.h for Linux setjmp() behavior
- Fixed DOS medium model support (Tim Wegner)
- Fixed png_check_keyword() for case with error in static string text
- Added read of CRC after IEND chunk for embedded PNGs (Laszlo Nyul)
- Added typecasts to quiet compiler errors
- Added more debugging info
-
-Version 0.97 [January, 1998]
- Removed PNG_USE_OWN_CRC capability
- Relocated png_set_crc_action from pngrutil.c to pngrtran.c
- Fixed typecasts of "new_key", etc. (Andreas Dilger)
- Added RFC 1152 [sic] date support
- Fixed bug in gamma handling of 4-bit grayscale
- Added 2-bit grayscale gamma handling (Glenn R-P)
- Added more typecasts. 65536L becomes (png_uint_32)65536L, etc. (Glenn R-P)
- Minor corrections in libpng.txt
- Added simple sRGB support (Glenn R-P)
- Easier conditional compiling, e.g.,
- define PNG_READ/WRITE_NOT_FULLY_SUPPORTED;
- all configurable options can be selected from command-line instead
- of having to edit pngconf.h (Glenn R-P)
- Fixed memory leak in pngwrite.c (free info_ptr->text) (Glenn R-P)
- Added more conditions for png_do_background, to avoid changing
- black pixels to background when a background is supplied and
- no pixels are transparent
- Repaired PNG_NO_STDIO behavior
- Tested NODIV support and made it default behavior (Greg Roelofs)
- Added "-m" option and PNGTEST_DEBUG_MEMORY to pngtest (John Bowler)
- Regularized version numbering scheme and bumped shared-library major
- version number to 2 to avoid problems with libpng 0.89 apps
- (Greg Roelofs)
-
-Version 0.98 [January, 1998]
- Cleaned up some typos in libpng.txt and in code documentation
- Fixed memory leaks in pCAL chunk processing (Glenn R-P and John Bowler)
- Cosmetic change "display_gamma" to "screen_gamma" in pngrtran.c
- Changed recommendation about file_gamma for PC images to .51 from .45,
- in example.c and libpng.txt, added comments to distinguish between
- screen_gamma, viewing_gamma, and display_gamma.
- Changed all references to RFC1152 to read RFC1123 and changed the
- PNG_TIME_RFC1152_SUPPORTED macro to PNG_TIME_RFC1123_SUPPORTED
- Added png_invert_alpha capability (Glenn R-P -- suggestion by Jon Vincent)
- Changed srgb_intent from png_byte to int to avoid compiler bugs
-
-Version 0.99 [January 30, 1998]
- Free info_ptr->text instead of end_info_ptr->text in pngread.c (John Bowler)
- Fixed a longstanding "packswap" bug in pngtrans.c
- Fixed some inconsistencies in pngconf.h that prevented compiling with
- PNG_READ_GAMMA_SUPPORTED and PNG_READ_hIST_SUPPORTED undefined
- Fixed some typos and made other minor rearrangement of libpng.txt (Andreas)
- Changed recommendation about file_gamma for PC images to .50 from .51 in
- example.c and libpng.txt, and changed file_gamma for sRGB images to .45
- Added a number of functions to access information from the png structure
- png_get_image_height(), etc. (Glenn R-P, suggestion by Brad Pettit)
- Added TARGET_MACOS similar to zlib-1.0.8
- Define PNG_ALWAYS_EXTERN when __MWERKS__ && WIN32 are defined
- Added type casting to all png_malloc() function calls
-
-Version 0.99a [January 31, 1998]
- Added type casts and parentheses to all returns that return a value.(Tim W.)
-
-Version 0.99b [February 4, 1998]
- Added type cast png_uint_32 on malloc function calls where needed.
- Changed type of num_hist from png_uint_32 to int (same as num_palette).
- Added checks for rowbytes overflow, in case png_size_t is less than 32 bits.
- Renamed makefile.elf to makefile.lnx.
-
-Version 0.99c [February 7, 1998]
- More type casting. Removed erroneous overflow test in pngmem.c.
- Added png_buffered_memcpy() and png_buffered_memset(), apply them to rowbytes.
- Added UNIX manual pages libpng.3 (incorporating libpng.txt) and png.5.
-
-Version 0.99d [February 11, 1998]
- Renamed "far_to_near()" "png_far_to_near()"
- Revised libpng.3
- Version 99c "buffered" operations didn't work as intended. Replaced them
- with png_memcpy_check() and png_memset_check().
- Added many "if (png_ptr == NULL) return" to quell compiler warnings about
- unused png_ptr, mostly in pngget.c and pngset.c.
- Check for overlength tRNS chunk present when indexed-color PLTE is read.
- Cleaned up spelling errors in libpng.3/libpng.txt
- Corrected a problem with png_get_tRNS() which returned undefined trans array
-
-Version 0.99e [February 28, 1998]
- Corrected png_get_tRNS() again.
- Add parentheses for easier reading of pngget.c, fixed "||" should be "&&".
- Touched up example.c to make more of it compileable, although the entire
- file still can't be compiled (Willem van Schaik)
- Fixed a bug in png_do_shift() (Bryan Tsai)
- Added a space in png.h prototype for png_write_chunk_start()
- Replaced pngtest.png with one created with zlib 1.1.1
- Changed pngtest to report PASS even when file size is different (Jean-loup G.)
- Corrected some logic errors in png_do_invert_alpha() (Chris Patterson)
-
-Version 0.99f [March 5, 1998]
- Corrected a bug in pngpread() introduced in version 99c (Kevin Bracey)
- Moved makefiles into a "scripts" directory, and added INSTALL instruction file
- Added makefile.os2 and pngos2.def (A. Zabolotny) and makefile.s2x (W. Sebok)
- Added pointers to "note on libpng versions" in makefile.lnx and README
- Added row callback feature when reading and writing nonprogressive rows
- and added a test of this feature in pngtest.c
- Added user transform callbacks, with test of the feature in pngtest.c
-
-Version 0.99g [March 6, 1998, morning]
- Minor changes to pngtest.c to suppress compiler warnings.
- Removed "beta" language from documentation.
-
-Version 0.99h [March 6, 1998, evening]
- Minor changes to previous minor changes to pngtest.c
- Changed PNG_READ_NOT_FULLY_SUPPORTED to PNG_READ_TRANSFORMS_NOT_SUPPORTED
- and added PNG_PROGRESSIVE_READ_NOT_SUPPORTED macro
- Added user transform capability
-
-Version 1.00 [March 7, 1998]
- Changed several typedefs in pngrutil.c
- Added makefile.wat (Pawel Mrochen), updated makefile.tc3 (Willem van Schaik)
- Replaced "while(1)" with "for(;;)"
- Added PNGARG() to prototypes in pngtest.c and removed some prototypes
- Updated some of the makefiles (Tom Lane)
- Changed some typedefs (s_start, etc.) in pngrutil.c
- Fixed dimensions of "short_months" array in pngwrite.c
- Replaced ansi2knr.c with the one from jpeg-v6
-
-Version 1.0.0 [March 8, 1998]
- Changed name from 1.00 to 1.0.0 (Adam Costello)
- Added smakefile.ppc (with SCOPTIONS.ppc) for Amiga PPC (Andreas Kleinert)
-
-Version 1.0.0a [March 9, 1998]
- Fixed three bugs in pngrtran.c to make gamma+background handling consistent
- (Greg Roelofs)
- Changed format of the PNG_LIBPNG_VER integer to xyyzz instead of xyz
- for major, minor, and bugfix releases. This is 10001. (Adam Costello,
- Tom Lane)
- Make months range from 1-12 in png_convert_to_rfc1123
-
-Version 1.0.0b [March 13, 1998]
- Quieted compiler complaints about two empty "for" loops in pngrutil.c
- Minor changes to makefile.s2x
- Removed #ifdef/#endif around a png_free() in pngread.c
-
-Version 1.0.1 [March 14, 1998]
- Changed makefile.s2x to reduce security risk of using a relative pathname
- Fixed some typos in the documentation (Greg).
- Fixed a problem with value of "channels" returned by png_read_update_info()
-
-Version 1.0.1a [April 21, 1998]
- Optimized Paeth calculations by replacing abs() function calls with intrinsics
- plus other loop optimizations. Improves avg decoding speed by about 20%.
- Commented out i386istic "align" compiler flags in makefile.lnx.
- Reduced the default warning level in some makefiles, to make them consistent.
- Removed references to IJG and JPEG in the ansi2knr.c copyright statement.
- Fixed a bug in png_do_strip_filler with XXRRGGBB => RRGGBB transformation.
- Added grayscale and 16-bit capability to png_do_read_filler().
- Fixed a bug in pngset.c, introduced in version 0.99c, that sets rowbytes
- too large when writing an image with bit_depth < 8 (Bob Dellaca).
- Corrected some bugs in the experimental weighted filtering heuristics.
- Moved a misplaced pngrutil code block that truncates tRNS if it has more
- than num_palette entries -- test was done before num_palette was defined.
- Fixed a png_convert_to_rfc1123() bug that converts day 31 to 0 (Steve Eddins).
- Changed compiler flags in makefile.wat for better optimization
- (Pawel Mrochen).
-
-Version 1.0.1b [May 2, 1998]
- Relocated png_do_gray_to_rgb() within png_do_read_transformations() (Greg).
- Relocated the png_composite macros from pngrtran.c to png.h (Greg).
- Added makefile.sco (contributed by Mike Hopkirk).
- Fixed two bugs (missing definitions of "istop") introduced in libpng-1.0.1a.
- Fixed a bug in pngrtran.c that would set channels=5 under some circumstances.
- More work on the Paeth-filtering, achieving imperceptible speedup
- (A Kleinert).
- More work on loop optimization which may help when compiled with C++
- compilers.
- Added warnings when people try to use transforms they've defined out.
- Collapsed 4 "i" and "c" loops into single "i" loops in pngrtran and pngwtran.
- Revised paragraph about png_set_expand() in libpng.txt and libpng.3 (Greg)
-
-Version 1.0.1c [May 11, 1998]
- Fixed a bug in pngrtran.c (introduced in libpng-1.0.1a) where the masks for
- filler bytes should have been 0xff instead of 0xf.
- Added max_pixel_depth=32 in pngrutil.c when using FILLER with palette images.
- Moved PNG_WRITE_WEIGHTED_FILTER_SUPPORTED and PNG_WRITE_FLUSH_SUPPORTED
- out of the PNG_WRITE_TRANSFORMS_NOT_SUPPORTED block of pngconf.h
- Added "PNG_NO_WRITE_TRANSFORMS" etc., as alternatives for *_NOT_SUPPORTED,
- for consistency, in pngconf.h
- Added individual "ifndef PNG_NO_[CAPABILITY]" in pngconf.h to make it easier
- to remove unwanted capabilities via the compile line
- Made some corrections to grammar (which, it's) in documentation (Greg).
- Corrected example.c, use of row_pointers in png_write_image().
-
-Version 1.0.1d [May 24, 1998]
- Corrected several statements that used side effects illegally in pngrutil.c
- and pngtrans.c, that were introduced in version 1.0.1b
- Revised png_read_rows() to avoid repeated if-testing for NULL (A Kleinert)
- More corrections to example.c, use of row_pointers in png_write_image()
- and png_read_rows().
- Added pngdll.mak and pngdef.pas to scripts directory, contributed by
- Bob Dellaca, to make a png32bd.dll with Borland C++ 4.5
- Fixed error in example.c with png_set_text: num_text is 3, not 2 (Guido V.)
- Changed several loops from count-down to count-up, for consistency.
-
-Version 1.0.1e [June 6, 1998]
- Revised libpng.txt and libpng.3 description of png_set_read|write_fn(), and
- added warnings when people try to set png_read_fn and png_write_fn in
- the same structure.
- Added a test such that png_do_gamma will be done when num_trans==0
- for truecolor images that have defined a background. This corrects an
- error that was introduced in libpng-0.90 that can cause gamma processing
- to be skipped.
- Added tests in png.h to include "trans" and "trans_values" in structures
- when PNG_READ_BACKGROUND_SUPPORTED or PNG_READ_EXPAND_SUPPORTED is defined.
- Add png_free(png_ptr->time_buffer) in png_destroy_read_struct()
- Moved png_convert_to_rfc_1123() from pngwrite.c to png.c
- Added capability for user-provided malloc_fn() and free_fn() functions,
- and revised pngtest.c to demonstrate their use, replacing the
- PNGTEST_DEBUG_MEM feature.
- Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner).
-
-Version 1.0.2 [June 14, 1998]
- Fixed two bugs in makefile.bor .
-
-Version 1.0.2a [December 30, 1998]
- Replaced and extended code that was removed from png_set_filler() in 1.0.1a.
- Fixed a bug in png_do_filler() that made it fail to write filler bytes in
- the left-most pixel of each row (Kevin Bracey).
- Changed "static pngcharp tIME_string" to "static char tIME_string[30]"
- in pngtest.c (Duncan Simpson).
- Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk
- even when no tIME chunk was present in the source file.
- Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit.
- Fixed a problem in png_read_push_finish_row(), which would not skip some
- passes that it should skip, for images that are less than 3 pixels high.
- Interchanged the order of calls to png_do_swap() and png_do_shift()
- in pngwtran.c (John Cromer).
- Added #ifdef PNG_DEBUG/#endif surrounding use of PNG_DEBUG in png.h .
- Changed "bad adaptive filter type" from error to warning in pngrutil.c .
- Fixed a documentation error about default filtering with 8-bit indexed-color.
- Separated the PNG_NO_STDIO macro into PNG_NO_STDIO and PNG_NO_CONSOLE_IO
- (L. Peter Deutsch).
- Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions.
- Added png_get_copyright() and png_get_header_version() functions.
- Revised comments on png_set_progressive_read_fn() in libpng.txt and example.c
- Added information about debugging in libpng.txt and libpng.3 .
- Changed "ln -sf" to "ln -s -f" in makefile.s2x, makefile.lnx, and
- makefile.sco.
- Removed lines after Dynamic Dependencies" in makefile.aco .
- Revised makefile.dec to make a shared library (Jeremie Petit).
- Removed trailing blanks from all files.
-
-Version 1.0.2a [January 6, 1999]
- Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h
- Added "if" tests to silence complaints about unused png_ptr in png.h and png.c
- Changed "check_if_png" function in example.c to return true (nonzero) if PNG.
- Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig()
- which is obsolete.
-
-Version 1.0.3 [January 14, 1999]
- Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice)
- Added a statement of Y2K compliance in png.h, libpng.3, and Y2KINFO.
-
-Version 1.0.3a [August 12, 1999]
- Added check for PNG_READ_INTERLACE_SUPPORTED in pngread.c; issue a warning
- if an attempt is made to read an interlaced image when it's not supported.
- Added check if png_ptr->trans is defined before freeing it in pngread.c
- Modified the Y2K statement to include versions back to version 0.71
- Fixed a bug in the check for valid IHDR bit_depth/color_types in pngrutil.c
- Modified makefile.wat (added -zp8 flag, ".symbolic", changed some comments)
- Replaced leading blanks with tab characters in makefile.hux
- Changed "dworkin.wustl.edu" to "ccrc.wustl.edu" in various documents.
- Changed (float)red and (float)green to (double)red, (double)green
- in png_set_rgb_to_gray() to avoid "promotion" problems in AIX.
- Fixed a bug in pngconf.h that omitted <stdio.h> when PNG_DEBUG==0 (K Bracey).
- Reformatted libpng.3 and libpngpf.3 with proper fonts (script by J. vanZandt).
- Updated documentation to refer to the PNG-1.2 specification.
- Removed ansi2knr.c and left pointers to the latest source for ansi2knr.c
- in makefile.knr, INSTALL, and README (L. Peter Deutsch)
- Fixed bugs in calculation of the length of rowbytes when adding alpha
- channels to 16-bit images, in pngrtran.c (Chris Nokleberg)
- Added function png_set_user_transform_info() to store user_transform_ptr,
- user_depth, and user_channels into the png_struct, and a function
- png_get_user_transform_ptr() to retrieve the pointer (Chris Nokleberg)
- Added function png_set_empty_plte_permitted() to make libpng useable
- in MNG applications.
- Corrected the typedef for png_free_ptr in png.h (Jesse Jones).
- Correct gamma with srgb is 45455 instead of 45000 in pngrutil.c, to be
- consistent with PNG-1.2, and allow variance of 500 before complaining.
- Added assembler code contributed by Intel in file pngvcrd.c and modified
- makefile.w32 to use it (Nirav Chhatrapati, INTEL Corporation,
- Gilles Vollant)
- Changed "ln -s -f" to "ln -f -s" in the makefiles to make Solaris happy.
- Added some aliases for png_set_expand() in pngrtran.c, namely
- png_set_expand_PLTE(), png_set_expand_depth(), and png_set_expand_tRNS()
- (Greg Roelofs, in "PNG: The Definitive Guide").
- Added makefile.beo for BEOS on X86, contributed by Sander Stok.
-
-Version 1.0.3b [August 26, 1999]
- Replaced 2147483647L several places with PNG_MAX_UINT macro, defined in png.h
- Changed leading blanks to tabs in all makefiles.
- Define PNG_USE_PNGVCRD in makefile.w32, to get MMX assembler code.
- Made alternate versions of png_set_expand() in pngrtran.c, namely
- png_set_gray_1_2_4_to_8, png_set_palette_to_rgb, and png_set_tRNS_to_alpha
- (Greg Roelofs, in "PNG: The Definitive Guide"). Deleted the 1.0.3a aliases.
- Relocated start of 'extern "C"' block in png.h so it doesn't include pngconf.h
- Revised calculation of num_blocks in pngmem.c to avoid a potentially
- negative shift distance, whose results are undefined in the C language.
- Added a check in pngset.c to prevent writing multiple tIME chunks.
- Added a check in pngwrite.c to detect invalid small window_bits sizes.
-
-Version 1.0.3d [September 4, 1999]
- Fixed type casting of igamma in pngrutil.c
- Added new png_expand functions to scripts/pngdef.pas and pngos2.def
- Added a demo read_user_transform_fn that examines the row filters in pngtest.c
-
-Version 1.0.4 [September 24, 1999, not distributed publicly]
- Define PNG_ALWAYS_EXTERN in pngconf.h if __STDC__ is defined
- Delete #define PNG_INTERNAL and include "png.h" from pngasmrd.h
- Made several minor corrections to pngtest.c
- Renamed the makefiles with longer but more user friendly extensions.
- Copied the PNG copyright and license to a separate LICENSE file.
- Revised documentation, png.h, and example.c to remove reference to
- "viewing_gamma" which no longer appears in the PNG specification.
- Revised pngvcrd.c to use MMX code for interlacing only on the final pass.
- Updated pngvcrd.c to use the faster C filter algorithms from libpng-1.0.1a
- Split makefile.win32vc into two versions, makefile.vcawin32 (uses MMX
- assembler code) and makefile.vcwin32 (doesn't).
- Added a CPU timing report to pngtest.c (enabled by defining PNGTEST_TIMING)
- Added a copy of pngnow.png to the distribution.
-
-Version 1.0.4a [September 25, 1999]
- Increase max_pixel_depth in pngrutil.c if a user transform needs it.
- Changed several division operations to right-shifts in pngvcrd.c
-
-Version 1.0.4b [September 30, 1999]
- Added parentheses in line 3732 of pngvcrd.c
- Added a comment in makefile.linux warning about buggy -O3 in pgcc 2.95.1
-
-Version 1.0.4c [October 1, 1999]
- Added a "png_check_version" function in png.c and pngtest.c that will generate
- a helpful compiler error if an old png.h is found in the search path.
- Changed type of png_user_transform_depth|channels from int to png_byte.
- Added "Libpng is OSI Certified Open Source Software" statement to png.h
-
-Version 1.0.4d [October 6, 1999]
- Changed 0.45 to 0.45455 in png_set_sRGB()
- Removed unused PLTE entries from pngnow.png
- Re-enabled some parts of pngvcrd.c (png_combine_row) that work properly.
-
-Version 1.0.4e [October 10, 1999]
- Fixed sign error in pngvcrd.c (Greg Roelofs)
- Replaced some instances of memcpy with simple assignments in pngvcrd (GR-P)
-
-Version 1.0.4f [October 15, 1999]
- Surrounded example.c code with #if 0 .. #endif to prevent people from
- inadvertently trying to compile it.
- Changed png_get_header_version() from a function to a macro in png.h
- Added type casting mostly in pngrtran.c and pngwtran.c
- Removed some pointless "ptr = NULL" in pngmem.c
- Added a "contrib" directory containing the source code from Greg's book.
-
-Version 1.0.5 [October 15, 1999]
- Minor editing of the INSTALL and README files.
-
-Version 1.0.5a [October 23, 1999]
- Added contrib/pngsuite and contrib/pngminus (Willem van Schaik)
- Fixed a typo in the png_set_sRGB() function call in example.c (Jan Nijtmans)
- Further optimization and bugfix of pngvcrd.c
- Revised pngset.c so that it does not allocate or free memory in the user's
- text_ptr structure. Instead, it makes its own copy.
- Created separate write_end_info_struct in pngtest.c for a more severe test.
- Added code in pngwrite.c to free info_ptr->text[i].key to stop a memory leak.
-
-Version 1.0.5b [November 23, 1999]
- Moved PNG_FLAG_HAVE_CHUNK_HEADER, PNG_FLAG_BACKGROUND_IS_GRAY and
- PNG_FLAG_WROTE_tIME from flags to mode.
- Added png_write_info_before_PLTE() function.
- Fixed some typecasting in contrib/gregbook/*.c
- Updated scripts/makevms.com and added makevms.com to contrib/gregbook
- and contrib/pngminus (Martin Zinser)
-
-Version 1.0.5c [November 26, 1999]
- Moved png_get_header_version from png.h to png.c, to accommodate ansi2knr.
- Removed all global arrays (according to PNG_NO_GLOBAL_ARRAYS macro), to
- accommodate making DLL's: Moved usr_png_ver from global variable to function
- png_get_header_ver() in png.c. Moved png_sig to png_sig_bytes in png.c and
- eliminated use of png_sig in pngwutil.c. Moved the various png_CHNK arrays
- into pngtypes.h. Eliminated use of global png_pass arrays. Declared the
- png_CHNK and png_pass arrays to be "const". Made the global arrays
- available to applications (although none are used in libpng itself) when
- PNG_NO_GLOBAL_ARRAYS is not defined or when PNG_GLOBAL_ARRAYS is defined.
- Removed some extraneous "-I" from contrib/pngminus/makefile.std
- Changed the PNG_sRGB_INTENT macros in png.h to be consistent with PNG-1.2.
- Change PNG_SRGB_INTENT to PNG_sRGB_INTENT in libpng.txt and libpng.3
-
-Version 1.0.5d [November 29, 1999]
- Add type cast (png_const_charp) two places in png.c
- Eliminated pngtypes.h; use macros instead to declare PNG_CHNK arrays.
- Renamed "PNG_GLOBAL_ARRAYS" to "PNG_USE_GLOBAL_ARRAYS" and made available
- to applications a macro "PNG_USE_LOCAL_ARRAYS".
- comment out (with #ifdef) all the new declarations when
- PNG_USE_GLOBAL_ARRAYS is defined.
- Added PNG_EXPORT_VAR macro to accommodate making DLL's.
-
-Version 1.0.5e [November 30, 1999]
- Added iCCP, iTXt, and sPLT support; added "lang" member to the png_text
- structure; refactored the inflate/deflate support to make adding new chunks
- with trailing compressed parts easier in the future, and added new functions
- png_free_iCCP, png_free_pCAL, png_free_sPLT, png_free_text, png_get_iCCP,
- png_get_spalettes, png_set_iCCP, png_set_spalettes (Eric S. Raymond).
- NOTE: Applications that write text chunks MUST define png_text->lang
- before calling png_set_text(). It must be set to NULL if you want to
- write tEXt or zTXt chunks. If you want your application to be able to
- run with older versions of libpng, use
-
- #ifdef PNG_iTXt_SUPPORTED
- png_text[i].lang = NULL;
- #endif
-
- Changed png_get_oFFs() and png_set_oFFs() to use signed rather than unsigned
- offsets (Eric S. Raymond).
- Combined PNG_READ_cHNK_SUPPORTED and PNG_WRITE_cHNK_SUPPORTED macros into
- PNG_cHNK_SUPPORTED and combined the three types of PNG_text_SUPPORTED
- macros, leaving the separate macros also available.
- Removed comments on #endifs at the end of many short, non-nested #if-blocks.
-
-Version 1.0.5f [December 6, 1999]
- Changed makefile.solaris to issue a warning about potential problems when
- the ucb "ld" is in the path ahead of the ccs "ld".
- Removed "- [date]" from the "synopsis" line in libpng.3 and libpngpf.3.
- Added sCAL chunk support (Eric S. Raymond).
-
-Version 1.0.5g [December 7, 1999]
- Fixed "png_free_spallettes" typo in png.h
- Added code to handle new chunks in pngpread.c
- Moved PNG_CHNK string macro definitions outside of PNG_NO_EXTERN block
- Added "translated_key" to png_text structure and png_write_iTXt().
- Added code in pngwrite.c to work around a newly discovered zlib bug.
-
-Version 1.0.5h [December 10, 1999]
- NOTE: regarding the note for version 1.0.5e, the following must also
- be included in your code:
- png_text[i].translated_key = NULL;
- Unknown chunk handling is now supported.
- Option to eliminate all floating point support was added. Some new
- fixed-point functions such as png_set_gAMA_fixed() were added.
- Expanded tabs and removed trailing blanks in source files.
-
-Version 1.0.5i [December 13, 1999]
- Added some type casts to silence compiler warnings.
- Renamed "png_free_spalette" to "png_free_spalettes" for consistency.
- Removed leading blanks from a #define in pngvcrd.c
- Added some parameters to the new png_set_keep_unknown_chunks() function.
- Added a test for up->location != 0 in the first instance of writing
- unknown chunks in pngwrite.c
- Changed "num" to "i" in png_free_spalettes() and png_free_unknowns() to
- prevent recursion.
- Added png_free_hIST() function.
- Various patches to fix bugs in the sCAL and integer cHRM processing,
- and to add some convenience macros for use with sCAL.
-
-Version 1.0.5j [December 21, 1999]
- Changed "unit" parameter of png_write_sCAL from png_byte to int, to work
- around buggy compilers.
- Added new type "png_fixed_point" for integers that hold float*100000 values
- Restored backward compatibility of tEXt/zTXt chunk processing:
- Restored the first four members of png_text to the same order as v.1.0.5d.
- Added members "lang_key" and "itxt_length" to png_text struct. Set
- text_length=0 when "text" contains iTXt data. Use the "compression"
- member to distinguish among tEXt/zTXt/iTXt types. Added
- PNG_ITXT_COMPRESSION_NONE (1) and PNG_ITXT_COMPRESSION_zTXt(2) macros.
- The "Note" above, about backward incompatibility of libpng-1.0.5e, no
- longer applies.
- Fixed png_read|write_iTXt() to read|write parameters in the right order,
- and to write the iTXt chunk after IDAT if it appears in the end_ptr.
- Added pnggccrd.c, version of pngvcrd.c Intel assembler for gcc (Greg Roelofs)
- Reversed the order of trying to write floating-point and fixed-point gAMA.
-
-Version 1.0.5k [December 27, 1999]
- Added many parentheses, e.g., "if (a && b & c)" becomes "if (a && (b & c))"
- Added png_handle_as_unknown() function (Glenn)
- Added png_free_chunk_list() function and chunk_list and num_chunk_list members
- of png_ptr.
- Eliminated erroneous warnings about multiple sPLT chunks and sPLT-after-PLTE.
- Fixed a libpng-1.0.5h bug in pngrutil.c that was issuing erroneous warnings
- about ignoring incorrect gAMA with sRGB (gAMA was in fact not ignored)
- Added png_free_tRNS(); png_set_tRNS() now malloc's its own trans array (ESR).
- Define png_get_int_32 when oFFs chunk is supported as well as when pCAL is.
- Changed type of proflen from png_int_32 to png_uint_32 in png_get_iCCP().
-
-Version 1.0.5l [January 1, 2000]
- Added functions png_set_read_user_chunk_fn() and png_get_user_chunk_ptr()
- for setting a callback function to handle unknown chunks and for
- retrieving the associated user pointer (Glenn).
-
-Version 1.0.5m [January 7, 2000]
- Added high-level functions png_read_png(), png_write_png(), png_free_pixels().
-
-Version 1.0.5n [January 9, 2000]
- Added png_free_PLTE() function, and modified png_set_PLTE() to malloc its
- own memory for info_ptr->palette. This makes it safe for the calling
- application to free its copy of the palette any time after it calls
- png_set_PLTE().
-
-Version 1.0.5o [January 20, 2000]
- Cosmetic changes only (removed some trailing blanks and TABs)
-
-Version 1.0.5p [January 31, 2000]
- Renamed pngdll.mak to makefile.bd32
- Cosmetic changes in pngtest.c
-
-Version 1.0.5q [February 5, 2000]
- Relocated the makefile.solaris warning about PATH problems.
- Fixed pngvcrd.c bug by pushing/popping registers in mmxsupport (Bruce Oberg)
- Revised makefile.gcmmx
- Added PNG_SETJMP_SUPPORTED, PNG_SETJMP_NOT_SUPPORTED, and PNG_ABORT() macros
-
-Version 1.0.5r [February 7, 2000]
- Removed superfluous prototype for png_get_itxt from png.h
- Fixed a bug in pngrtran.c that improperly expanded the background color.
- Return *num_text=0 from png_get_text() when appropriate, and fix documentation
- of png_get_text() in libpng.txt/libpng.3.
-
-Version 1.0.5s [February 18, 2000]
- Added "png_jmp_env()" macro to pngconf.h, to help people migrate to the
- new error handler that's planned for the next libpng release, and changed
- example.c, pngtest.c, and contrib programs to use this macro.
- Revised some of the DLL-export macros in pngconf.h (Greg Roelofs)
- Fixed a bug in png_read_png() that caused it to fail to expand some images
- that it should have expanded.
- Fixed some mistakes in the unused and undocumented INCH_CONVERSIONS functions
- in pngget.c
- Changed the allocation of palette, history, and trans arrays back to
- the version 1.0.5 method (linking instead of copying) which restores
- backward compatibility with version 1.0.5. Added some remarks about
- that in example.c. Added "free_me" member to info_ptr and png_ptr
- and added png_free_data() function.
- Updated makefile.linux and makefile.gccmmx to make directories conditionally.
- Made cosmetic changes to pngasmrd.h
- Added png_set_rows() and png_get_rows(), for use with png_read|write_png().
- Modified png_read_png() to allocate info_ptr->row_pointers only if it
- hasn't already been allocated.
-
-Version 1.0.5t [March 4, 2000]
- Changed png_jmp_env() migration aiding macro to png_jmpbuf().
- Fixed "interlace" typo (should be "interlaced") in contrib/gregbook/read2-x.c
- Fixed bug with use of PNG_BEFORE_IHDR bit in png_ptr->mode, introduced when
- PNG_FLAG_HAVE_CHUNK_HEADER was moved into png_ptr->mode in version 1.0.5b
- Files in contrib/gregbook were revised to use png_jmpbuf() and to select
- a 24-bit visual if one is available, and to allow abbreviated options.
- Files in contrib/pngminus were revised to use the png_jmpbuf() macro.
- Removed spaces in makefile.linux and makefile.gcmmx, introduced in 1.0.5s
-
-Version 1.0.5u [March 5, 2000]
- Simplified the code that detects old png.h in png.c and pngtest.c
- Renamed png_spalette (_p, _pp) to png_sPLT_t (_tp, _tpp)
- Increased precision of rgb_to_gray calculations from 8 to 15 bits and
- added png_set_rgb_to_gray_fixed() function.
- Added makefile.bc32 (32-bit Borland C++, C mode)
-
-Version 1.0.5v [March 11, 2000]
- Added some parentheses to the png_jmpbuf macro definition.
- Updated references to the zlib home page, which has moved to freesoftware.com.
- Corrected bugs in documentation regarding png_read_row() and png_write_row().
- Updated documentation of png_rgb_to_gray calculations in libpng.3/libpng.txt.
- Renamed makefile.borland,turboc3 back to makefile.bor,tc3 as in version 1.0.3,
- revised borland makefiles; added makefile.ibmvac3 and makefile.gcc (Cosmin)
-
-Version 1.0.6 [March 20, 2000]
- Minor revisions of makefile.bor, libpng.txt, and gregbook/rpng2-win.c
- Added makefile.sggcc (SGI IRIX with gcc)
-
-Version 1.0.6d [April 7, 2000]
- Changed sprintf() to strcpy() in png_write_sCAL_s() to work without STDIO
- Added data_length parameter to png_decompress_chunk() function
- Revised documentation to remove reference to abandoned png_free_chnk functions
- Fixed an error in png_rgb_to_gray_fixed()
- Revised example.c, usage of png_destroy_write_struct().
- Renamed makefile.ibmvac3 to makefile.ibmc, added libpng.icc IBM project file
- Added a check for info_ptr->free_me&PNG_FREE_TEXT when freeing text in png.c
- Simplify png_sig_bytes() function to remove use of non-ISO-C strdup().
-
-Version 1.0.6e [April 9, 2000]
- Added png_data_freer() function.
- In the code that checks for over-length tRNS chunks, added check of
- info_ptr->num_trans as well as png_ptr->num_trans (Matthias Benckmann)
- Minor revisions of libpng.txt/libpng.3.
- Check for existing data and free it if the free_me flag is set, in png_set_*()
- and png_handle_*().
- Only define PNG_WEIGHTED_FILTERS_SUPPORTED when PNG_FLOATING_POINT_SUPPORTED
- is defined.
- Changed several instances of PNG_NO_CONSOLE_ID to PNG_NO_STDIO in pngrutil.c
- and mentioned the purposes of the two macros in libpng.txt/libpng.3.
-
-Version 1.0.6f [April 14, 2000]
- Revised png_set_iCCP() and png_set_rows() to avoid prematurely freeing data.
- Add checks in png_set_text() for NULL members of the input text structure.
- Revised libpng.txt/libpng.3.
- Removed superfluous prototype for png_set_iTXt from png.h
- Removed "else" from pngread.c, after png_error(), and changed "0" to "length".
- Changed several png_errors about malformed ancillary chunks to png_warnings.
-
-Version 1.0.6g [April 24, 2000]
- Added png_pass-* arrays to pnggccrd.c when PNG_USE_LOCAL_ARRAYS is defined.
- Relocated paragraph about png_set_background() in libpng.3/libpng.txt
- and other revisions (Matthias Benckmann)
- Relocated info_ptr->free_me, png_ptr->free_me, and other info_ptr and
- png_ptr members to restore binary compatibility with libpng-1.0.5
- (breaks compatibility with libpng-1.0.6).
-
-Version 1.0.6h [April 24, 2000]
- Changed shared library so-number pattern from 2.x.y.z to xy.z (this builds
- libpng.so.10 & libpng.so.10.6h instead of libpng.so.2 & libpng.so.2.1.0.6h)
- This is a temporary change for test purposes.
-
-Version 1.0.6i [May 2, 2000]
- Rearranged some members at the end of png_info and png_struct, to put
- unknown_chunks_num and free_me within the original size of the png_structs
- and free_me, png_read_user_fn, and png_free_fn within the original png_info,
- because some old applications allocate the structs directly instead of
- using png_create_*().
- Added documentation of user memory functions in libpng.txt/libpng.3
- Modified png_read_png so that it will use user_allocated row_pointers
- if present, unless free_me directs that it be freed, and added description
- of the use of png_set_rows() and png_get_rows() in libpng.txt/libpng.3.
- Added PNG_LEGACY_SUPPORTED macro, and #ifdef out all new (since version
- 1.00) members of png_struct and png_info, to regain binary compatibility
- when you define this macro. Capabilities lost in this event
- are user transforms (new in version 1.0.0),the user transform pointer
- (new in version 1.0.2), rgb_to_gray (new in 1.0.5), iCCP, sCAL, sPLT,
- the high-level interface, and unknown chunks support (all new in 1.0.6).
- This was necessary because of old applications that allocate the structs
- directly as authors were instructed to do in libpng-0.88 and earlier,
- instead of using png_create_*().
- Added modes PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT which
- can be used to detect codes that directly allocate the structs, and
- code to check these modes in png_read_init() and png_write_init() and
- generate a libpng error if the modes aren't set and PNG_LEGACY_SUPPORTED
- was not defined.
- Added makefile.intel and updated makefile.watcom (Pawel Mrochen)
-
-Version 1.0.6j [May 3, 2000]
- Overloaded png_read_init() and png_write_init() with macros that convert
- calls to png_read_init_2() or png_write_init_2() that check the version
- and structure sizes.
-
-Version 1.0.7beta11 [May 7, 2000]
- Removed the new PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT modes
- which are no longer used.
- Eliminated the three new members of png_text when PNG_LEGACY_SUPPORTED is
- defined or when neither PNG_READ_iTXt_SUPPORTED nor PNG_WRITE_iTXt_SUPPORTED
- is defined.
- Made PNG_NO_READ|WRITE_iTXt the default setting, to avoid memory
- overrun when old applications fill the info_ptr->text structure directly.
- Added PNGAPI macro, and added it to the definitions of all exported functions.
- Relocated version macro definitions ahead of the includes of zlib.h and
- pngconf.h in png.h.
-
-Version 1.0.7beta12 [May 12, 2000]
- Revised pngset.c to avoid a problem with expanding the png_debug macro.
- Deleted some extraneous defines from pngconf.h
- Made PNG_NO_CONSOLE_IO the default condition when PNG_BUILD_DLL is defined.
- Use MSC _RPTn debugging instead of fprintf if _MSC_VER is defined.
- Added png_access_version_number() function.
- Check for mask&PNG_FREE_CHNK (for TEXT, SCAL, PCAL) in png_free_data().
- Expanded libpng.3/libpng.txt information about png_data_freer().
-
-Version 1.0.7beta14 [May 17, 2000] (beta13 was not published)
- Changed pnggccrd.c and pngvcrd.c to handle bad adaptive filter types as
- warnings instead of errors, as pngrutil.c does.
- Set the PNG_INFO_IDAT valid flag in png_set_rows() so png_write_png()
- will actually write IDATs.
- Made the default PNG_USE_LOCAL_ARRAYS depend on PNG_DLL instead of WIN32.
- Make png_free_data() ignore its final parameter except when freeing data
- that can have multiple instances (text, sPLT, unknowns).
- Fixed a new bug in png_set_rows().
- Removed info_ptr->valid tests from png_free_data(), as in version 1.0.5.
- Added png_set_invalid() function.
- Fixed incorrect illustrations of png_destroy_write_struct() in example.c.
-
-Version 1.0.7beta15 [May 30, 2000]
- Revised the deliberately erroneous Linux setjmp code in pngconf.h to produce
- fewer error messages.
- Rearranged checks for Z_OK to check the most likely path first in pngpread.c
- and pngwutil.c.
- Added checks in pngtest.c for png_create_*() returning NULL, and mentioned
- in libpng.txt/libpng.3 the need for applications to check this.
- Changed names of png_default_*() functions in pngtest to pngtest_*().
- Changed return type of png_get_x|y_offset_*() from png_uint_32 to png_int_32.
- Fixed some bugs in the unused PNG_INCH_CONVERSIONS functions in pngget.c
- Set each pointer to NULL after freeing it in png_free_data().
- Worked around a problem in pngconf.h; AIX's strings.h defines an "index"
- macro that conflicts with libpng's png_color_16.index. (Dimitri
- Papadapoulos)
- Added "msvc" directory with MSVC++ project files (Simon-Pierre Cadieux).
-
-Version 1.0.7beta16 [June 4, 2000]
- Revised the workaround of AIX string.h "index" bug.
- Added a check for overlength PLTE chunk in pngrutil.c.
- Added PNG_NO_POINTER_INDEXING macro to use array-indexing instead of pointer
- indexing in pngrutil.c and pngwutil.c to accommodate a buggy compiler.
- Added a warning in png_decompress_chunk() when it runs out of data, e.g.
- when it tries to read an erroneous PhotoShop iCCP chunk.
- Added PNG_USE_DLL macro.
- Revised the copyright/disclaimer/license notice.
- Added contrib/msvctest directory
-
-Version 1.0.7rc1 [June 9, 2000]
- Corrected the definition of PNG_TRANSFORM_INVERT_ALPHA (0x0400 not 0x0200)
- Added contrib/visupng directory (Willem van Schaik)
-
-Version 1.0.7beta18 [June 23, 2000]
- Revised PNGAPI definition, and pngvcrd.c to work with __GCC__
- and do not redefine PNGAPI if it is passed in via a compiler directive.
- Revised visupng/PngFile.c to remove returns from within the Try block.
- Removed leading underscores from "_PNG_H" and "_PNG_SAVE_BSD_SOURCE" macros.
- Updated contrib/visupng/cexcept.h to version 1.0.0.
- Fixed bugs in pngwrite.c and pngwutil.c that prevented writing iCCP chunks.
-
-Version 1.0.7rc2 [June 28, 2000]
- Updated license to include disclaimers required by UCITA.
- Fixed "DJBPP" typo in pnggccrd.c introduced in beta18.
-
-Version 1.0.7 [July 1, 2000]
- Revised the definition of "trans_values" in libpng.3/libpng.txt
-
-Version 1.0.8beta1 [July 8, 2000]
- Added png_free(png_ptr, key) two places in pngpread.c to stop memory leaks.
- Changed PNG_NO_STDIO to PNG_NO_CONSOLE_IO, several places in pngrutil.c and
- pngwutil.c.
- Changed PNG_EXPORT_VAR to use PNG_IMPEXP, in pngconf.h.
- Removed unused "#include <assert.h>" from png.c
- Added WindowsCE support.
- Revised pnggccrd.c to work with gcc-2.95.2 and in the Cygwin environment.
-
-Version 1.0.8beta2 [July 10, 2000]
- Added project files to the wince directory and made further revisions
- of pngtest.c, pngrio.c, and pngwio.c in support of WindowsCE.
-
-Version 1.0.8beta3 [July 11, 2000]
- Only set the PNG_FLAG_FREE_TRNS or PNG_FREE_TRNS flag in png_handle_tRNS()
- for indexed-color input files to avoid potential double-freeing trans array
- under some unusual conditions; problem was introduced in version 1.0.6f.
- Further revisions to pngtest.c and files in the wince subdirectory.
-
-Version 1.0.8beta4 [July 14, 2000]
- Added the files pngbar.png and pngbar.jpg to the distribution.
- Added makefile.cygwin, and cygwin support in pngconf.h
- Added PNG_NO_ZALLOC_ZERO macro (makes png_zalloc skip zeroing memory)
-
-Version 1.0.8rc1 [July 16, 2000]
- Revised png_debug() macros and statements to eliminate compiler warnings.
-
-Version 1.0.8 [July 24, 2000]
- Added png_flush() in pngwrite.c, after png_write_IEND().
- Updated makefile.hpux to build a shared library.
-
-Version 1.0.9beta1 [November 10, 2000]
- Fixed typo in scripts/makefile.hpux
- Updated makevms.com in scripts and contrib/* and contrib/* (Martin Zinser)
- Fixed seqence-point bug in contrib/pngminus/png2pnm (Martin Zinser)
- Changed "cdrom.com" in documentation to "libpng.org"
- Revised pnggccrd.c to get it all working, and updated makefile.gcmmx (Greg).
- Changed type of "params" from voidp to png_voidp in png_read|write_png().
- Make sure PNGAPI and PNG_IMPEXP are defined in pngconf.h.
- Revised the 3 instances of WRITEFILE in pngtest.c.
- Relocated "msvc" and "wince" project subdirectories into "dll" subdirectory.
- Updated png.rc in dll/msvc project
- Revised makefile.dec to define and use LIBPATH and INCPATH
- Increased size of global png_libpng_ver[] array from 12 to 18 chars.
- Made global png_libpng_ver[], png_sig[] and png_pass_*[] arrays const.
- Removed duplicate png_crc_finish() from png_handle_bKGD() function.
- Added a warning when application calls png_read_update_info() multiple times.
- Revised makefile.cygwin
- Fixed bugs in iCCP support in pngrutil.c and pngwutil.c.
- Replaced png_set_empty_plte_permitted() with png_permit_mng_features().
-
-Version 1.0.9beta2 [November 19, 2000]
- Renamed the "dll" subdirectory "projects".
- Added borland project files to "projects" subdirectory.
- Set VS_FF_PRERELEASE and VS_FF_PATCHED flags in msvc/png.rc when appropriate.
- Add error message in png_set_compression_buffer_size() when malloc fails.
-
-Version 1.0.9beta3 [November 23, 2000]
- Revised PNG_LIBPNG_BUILD_TYPE macro in png.h, used in the msvc project.
- Removed the png_flush() in pngwrite.c that crashes some applications
- that don't set png_output_flush_fn.
- Added makefile.macosx and makefile.aix to scripts directory.
-
-Version 1.0.9beta4 [December 1, 2000]
- Change png_chunk_warning to png_warning in png_check_keyword().
- Increased the first part of msg buffer from 16 to 18 in png_chunk_error().
-
-Version 1.0.9beta5 [December 15, 2000]
- Added support for filter method 64 (for PNG datastreams embedded in MNG).
-
-Version 1.0.9beta6 [December 18, 2000]
- Revised png_set_filter() to accept filter method 64 when appropriate.
- Added new PNG_HAVE_PNG_SIGNATURE bit to png_ptr->mode and use it to
- help prevent applications from using MNG features in PNG datastreams.
- Added png_permit_mng_features() function.
- Revised libpng.3/libpng.txt. Changed "filter type" to "filter method".
-
-Version 1.0.9rc1 [December 23, 2000]
- Revised test for PNG_HAVE_PNG_SIGNATURE in pngrutil.c
- Fixed error handling of unknown compression type in png_decompress_chunk().
- In pngconf.h, define __cdecl when _MSC_VER is defined.
-
-Version 1.0.9beta7 [December 28, 2000]
- Changed PNG_TEXT_COMPRESSION_zTXt to PNG_COMPRESSION_TYPE_BASE several places.
- Revised memory management in png_set_hIST and png_handle_hIST in a backward
- compatible manner. PLTE and tRNS were revised similarly.
- Revised the iCCP chunk reader to ignore trailing garbage.
-
-Version 1.0.9beta8 [January 12, 2001]
- Moved pngasmrd.h into pngconf.h.
- Improved handling of out-of-spec garbage iCCP chunks generated by PhotoShop.
-
-Version 1.0.9beta9 [January 15, 2001]
- Added png_set_invalid, png_permit_mng_features, and png_mmx_supported to
- wince and msvc project module definition files.
- Minor revision of makefile.cygwin.
- Fixed bug with progressive reading of narrow interlaced images in pngpread.c
-
-Version 1.0.9beta10 [January 16, 2001]
- Do not typedef png_FILE_p in pngconf.h when PNG_NO_STDIO is defined.
- Fixed "png_mmx_supported" typo in project definition files.
-
-Version 1.0.9beta11 [January 19, 2001]
- Updated makefile.sgi to make shared library.
- Removed png_mmx_support() function and disabled PNG_MNG_FEATURES_SUPPORTED
- by default, for the benefit of DLL forward compatibility. These will
- be re-enabled in version 1.2.0.
-
-Version 1.0.9rc2 [January 22, 2001]
- Revised cygwin support.
-
-Version 1.0.9 [January 31, 2001]
- Added check of cygwin's ALL_STATIC in pngconf.h
- Added "-nommx" parameter to contrib/gregbook/rpng2-win and rpng2-x demos.
-
-Version 1.0.10beta1 [March 14, 2001]
- Revised makefile.dec, makefile.sgi, and makefile.sggcc; added makefile.hpgcc.
- Reformatted libpng.3 to eliminate bad line breaks.
- Added checks for _mmx_supported in the read_filter_row function of pnggccrd.c
- Added prototype for png_mmx_support() near the top of pnggccrd.c
- Moved some error checking from png_handle_IHDR to png_set_IHDR.
- Added PNG_NO_READ_SUPPORTED and PNG_NO_WRITE_SUPPORTED macros.
- Revised png_mmx_support() function in pnggccrd.c
- Restored version 1.0.8 PNG_WRITE_EMPTY_PLTE_SUPPORTED behavior in pngwutil.c
- Fixed memory leak in contrib/visupng/PngFile.c
- Fixed bugs in png_combine_row() in pnggccrd.c and pngvcrd.c (C version)
- Added warnings when retrieving or setting gamma=0.
- Increased the first part of msg buffer from 16 to 18 in png_chunk_warning().
-
-Version 1.0.10rc1 [March 23, 2001]
- Changed all instances of memcpy, strcpy, and strlen to png_memcpy, png_strcpy,
- and png_strlen.
- Revised png_mmx_supported() function in pnggccrd.c to return proper value.
- Fixed bug in progressive reading (pngpread.c) with small images (height < 8).
-
-Version 1.0.10 [March 30, 2001]
- Deleted extraneous space (introduced in 1.0.9) from line 42 of makefile.cygwin
- Added beos project files (Chris Herborth)
-
-Version 1.0.11beta1 [April 3, 2001]
- Added type casts on several png_malloc() calls (Dimitri Papadapoulos).
- Removed a no-longer needed AIX work-around from pngconf.h
- Changed several "//" single-line comments to C-style in pnggccrd.c
-
-Version 1.0.11beta2 [April 11, 2001]
- Removed PNGAPI from several functions whose prototypes did not have PNGAPI.
- Updated scripts/pngos2.def
-
-Version 1.0.11beta3 [April 14, 2001]
- Added checking the results of many instances of png_malloc() for NULL
-
-Version 1.0.11beta4 [April 20, 2001]
- Undid the changes from version 1.0.11beta3. Added a check for NULL return
- from user's malloc_fn().
- Removed some useless type casts of the NULL pointer.
- Added makefile.netbsd
-
-Version 1.0.11 [April 27, 2001]
- Revised makefile.netbsd
-
-Version 1.0.12beta1 [May 14, 2001]
- Test for Windows platform in pngconf.h when including malloc.h (Emmanuel Blot)
- Updated makefile.cygwin and handling of Cygwin's ALL_STATIC in pngconf.h
- Added some never-to-be-executed code in pnggccrd.c to quiet compiler warnings.
- Eliminated the png_error about apps using png_read|write_init(). Instead,
- libpng will reallocate the png_struct and info_struct if they are too small.
- This retains future binary compatibility for old applications written for
- libpng-0.88 and earlier.
-
-Version 1.2.0beta1 [May 6, 2001]
- Bumped DLLNUM to 2.
- Re-enabled PNG_MNG_FEATURES_SUPPORTED and enabled PNG_ASSEMBLER_CODE_SUPPORTED
- by default.
- Added runtime selection of MMX features.
- Added png_set_strip_error_numbers function and related macros.
-
-Version 1.2.0beta2 [May 7, 2001]
- Finished merging 1.2.0beta1 with version 1.0.11
- Added a check for attempts to read or write PLTE in grayscale PNG datastreams.
-
-Version 1.2.0beta3 [May 17, 2001]
- Enabled user memory function by default.
- Modified png_create_struct so it passes user mem_ptr to user memory allocator.
- Increased png_mng_features flag from png_byte to png_uint_32.
- Bumped shared-library (so-number) and dll-number to 3.
-
-Version 1.2.0beta4 [June 23, 2001]
- Check for missing profile length field in iCCP chunk and free chunk_data
- in case of truncated iCCP chunk.
- Bumped shared-library number to 3 in makefile.sgi and makefile.sggcc
- Bumped dll-number from 2 to 3 in makefile.cygwin
- Revised contrib/gregbook/rpng*-x.c to avoid a memory leak and to exit cleanly
- if user attempts to run it on an 8-bit display.
- Updated contrib/gregbook
- Use png_malloc instead of png_zalloc to allocate palette in pngset.c
- Updated makefile.ibmc
- Added some typecasts to eliminate gcc 3.0 warnings. Changed prototypes
- of png_write_oFFS width and height from png_uint_32 to png_int_32.
- Updated example.c
- Revised prototypes for png_debug_malloc and png_debug_free in pngtest.c
-
-Version 1.2.0beta5 [August 8, 2001]
- Revised contrib/gregbook
- Revised makefile.gcmmx
- Revised pnggccrd.c to conditionally compile some thread-unsafe code only
- when PNG_THREAD_UNSAFE_OK is defined.
- Added tests to prevent pngwutil.c from writing a bKGD or tRNS chunk with
- value exceeding 2^bit_depth-1
- Revised makefile.sgi and makefile.sggcc
- Replaced calls to fprintf(stderr,...) with png_warning() in pnggccrd.c
- Removed restriction that do_invert_mono only operate on 1-bit opaque files
-
-Version 1.2.0 [September 1, 2001]
- Changed a png_warning() to png_debug() in pnggccrd.c
- Fixed contrib/gregbook/rpng-x.c, rpng2-x.c to avoid crash with XFreeGC().
-
-Version 1.2.1beta1 [October 19, 2001]
- Revised makefile.std in contrib/pngminus
- Include background_1 in png_struct regardless of gamma support.
- Revised makefile.netbsd and makefile.macosx, added makefile.darwin.
- Revised example.c to provide more details about using row_callback().
-
-Version 1.2.1beta2 [October 25, 2001]
- Added type cast to each NULL appearing in a function call, except for
- WINCE functions.
- Added makefile.so9.
-
-Version 1.2.1beta3 [October 27, 2001]
- Removed type casts from all NULLs.
- Simplified png_create_struct_2().
-
-Version 1.2.1beta4 [November 7, 2001]
- Revised png_create_info_struct() and png_creat_struct_2().
- Added error message if png_write_info() was omitted.
- Type cast NULLs appearing in function calls when _NO_PROTO or
- PNG_TYPECAST_NULL is defined.
-
-Version 1.2.1rc1 [November 24, 2001]
- Type cast NULLs appearing in function calls except when PNG_NO_TYPECAST_NULL
- is defined.
- Changed typecast of "size" argument to png_size_t in pngmem.c calls to
- the user malloc_fn, to agree with the prototype in png.h
- Added a pop/push operation to pnggccrd.c, to preserve Eflag (Maxim Sobolev)
- Updated makefile.sgi to recognize LIBPATH and INCPATH.
- Updated various makefiles so "make clean" does not remove previous major
- version of the shared library.
-
-Version 1.2.1rc2 [December 4, 2001]
- Always allocate 256-entry internal palette, hist, and trans arrays, to
- avoid out-of-bounds memory reference caused by invalid PNG datastreams.
- Added a check for prefix_length > data_length in iCCP chunk handler.
-
-Version 1.2.1 [December 7, 2001]
- None.
-
-Version 1.2.2beta1 [February 22, 2002]
- Fixed a bug with reading the length of iCCP profiles (Larry Reeves).
- Revised makefile.linux, makefile.gcmmx, and makefile.sgi to generate
- libpng.a, libpng12.so (not libpng.so.3), and libpng12/png.h
- Revised makefile.darwin to remove "-undefined suppress" option.
- Added checks for gamma and chromaticity values over 21474.83, which exceed
- the limit for PNG unsigned 32-bit integers when encoded.
- Revised calls to png_create_read_struct() and png_create_write_struct()
- for simpler debugging.
- Revised png_zalloc() so zlib handles errors (uses PNG_FLAG_MALLOC_NULL_MEM_OK)
-
-Version 1.2.2beta2 [February 23, 2002]
- Check chunk_length and idat_size for invalid (over PNG_MAX_UINT) lengths.
- Check for invalid image dimensions in png_get_IHDR.
- Added missing "fi;" in the install target of the SGI makefiles.
- Added install-static to all makefiles that make shared libraries.
- Always do gamma compensation when image is partially transparent.
-
-Version 1.2.2beta3 [March 7, 2002]
- Compute background.gray and background_1.gray even when color_type is RGB
- in case image gets reduced to gray later.
- Modified shared-library makefiles to install pkgconfig/libpngNN.pc.
- Export (with PNGAPI) png_zalloc, png_zfree, and png_handle_as_unknown
- Removed unused png_write_destroy_info prototype from png.h
- Eliminated incorrect use of width_mmx from pnggccrd.c in pixel_bytes == 8 case
- Added install-shared target to all makefiles that make shared libraries.
- Stopped a double free of palette, hist, and trans when not using free_me.
- Added makefile.32sunu for Sun Ultra 32 and makefile.64sunu for Sun Ultra 64.
-
-Version 1.2.2beta4 [March 8, 2002]
- Compute background.gray and background_1.gray even when color_type is RGB
- in case image gets reduced to gray later (Jason Summers).
- Relocated a misplaced /bin/rm in the "install-shared" makefile targets
- Added PNG_1_0_X macro which can be used to build a 1.0.x-compatible library.
-
-Version 1.2.2beta5 [March 26, 2002]
- Added missing PNGAPI to several function definitions.
- Check for invalid bit_depth or color_type in png_get_IHDR(), and
- check for missing PLTE or IHDR in png_push_read_chunk() (Matthias Clasen).
- Revised iTXt support to accept NULL for lang and lang_key.
- Compute gamma for color components of background even when color_type is gray.
- Changed "()" to "{}" in scripts/libpng.pc.in.
- Revised makefiles to put png.h and pngconf.h only in $prefix/include/libpngNN
- Revised makefiles to make symlink to libpng.so.NN in addition to libpngNN.so
-
-Version 1.2.2beta6 [March 31, 2002]
-
-Version 1.0.13beta1 [March 31, 2002]
- Prevent png_zalloc() from trying to memset memory that it failed to acquire.
- Add typecasts of PNG_MAX_UINT in pngset_cHRM_fixed() (Matt Holgate).
- Ensure that the right function (user or default) is used to free the
- png_struct after an error in png_create_read_struct_2().
-
-Version 1.2.2rc1 [April 7, 2002]
-
-Version 1.0.13rc1 [April 7, 2002]
- Save the ebx register in pnggccrd.c (Sami Farin)
- Add "mem_ptr = png_ptr->mem_ptr" in png_destroy_write_struct() (Paul Gardner).
- Updated makefiles to put headers in include/libpng and remove old include/*.h.
-
-Version 1.2.2 [April 15, 2002]
-
-Version 1.0.13 [April 15, 2002]
- Revised description of png_set_filter() in libpng.3/libpng.txt.
- Revised makefile.netbsd and added makefile.neNNbsd and makefile.freebsd
-
-Version 1.0.13patch01 [April 17, 2002]
-
-Version 1.2.2patch01 [April 17, 2002]
- Changed ${PNGMAJ}.${PNGVER} bug to ${PNGVER} in makefile.sgi and
- makefile.sggcc
- Fixed VER -> PNGVER typo in makefile.macosx and added install-static to
- install
- Added install: target to makefile.32sunu and makefile.64sunu
-
-Version 1.0.13patch03 [April 18, 2002]
-
-Version 1.2.2patch03 [April 18, 2002]
- Revised 15 makefiles to link libpng.a to libpngNN.a and the include libpng
- subdirectory to libpngNN subdirectory without the full pathname.
- Moved generation of libpng.pc from "install" to "all" in 15 makefiles.
-
-Version 1.2.3rc1 [April 28, 2002]
- Added install-man target to 15 makefiles (Dimitri Papadopolous-Orfanos).
- Added $(DESTDIR) feature to 24 makefiles (Tim Mooney)
- Fixed bug with $prefix, should be $(prefix) in makefile.hpux.
- Updated cygwin-specific portion of pngconf.h and revised makefile.cygwin
- Added a link from libpngNN.pc to libpng.pc in 15 makefiles.
- Added links from include/libpngNN/*.h to include/*.h in 24 makefiles.
- Revised makefile.darwin to make relative links without full pathname.
- Added setjmp() at the end of png_create_*_struct_2() in case user forgets
- to put one in their application.
- Restored png_zalloc() and png_zfree() prototypes to version 1.2.1 and
- removed them from module definition files.
-
-Version 1.2.3rc2 [May 1, 2002]
- Fixed bug in reporting number of channels in pngget.c and pngset.c,
- that was introduced in version 1.2.2beta5.
- Exported png_zalloc(), png_zfree(), png_default_read(), png_default_write(),
- png_default_flush(), and png_push_fill_buffer() and included them in
- module definition files.
- Added "libpng.pc" dependency to the "install-shared" target in 15 makefiles.
-
-Version 1.2.3rc3 [May 1, 2002]
- Revised prototype for png_default_flush()
- Remove old libpng.pc and libpngNN.pc before installing new ones.
-
-Version 1.2.3rc4 [May 2, 2002]
- Typos in *.def files (png_default_read|write -> png_default_read|write_data)
- In makefiles, changed rm libpng.NN.pc to rm libpngNN.pc
- Added libpng-config and libpngNN-config and modified makefiles to install
- them.
- Changed $(MANPATH) to $(DESTDIR)$(MANPATH) in makefiles
- Added "Win32 DLL VB" configuration to projects/msvc/libpng.dsp
-
-Version 1.2.3rc5 [May 11, 2002]
- Changed "error" and "message" in prototypes to "error_message" and
- "warning_message" to avoid namespace conflict.
- Revised 15 makefiles to build libpng-config from libpng-config-*.in
- Once more restored png_zalloc and png_zfree to regular nonexported form.
- Restored png_default_read|write_data, png_default_flush, png_read_fill_buffer
- to nonexported form, but with PNGAPI, and removed them from module def
- files.
-
-Version 1.2.3rc6 [May 14, 2002]
- Removed "PNGAPI" from png_zalloc() and png_zfree() in png.c
- Changed "Gz" to "Gd" in projects/msvc/libpng.dsp and zlib.dsp.
- Removed leftover libpng-config "sed" script from four makefiles.
- Revised libpng-config creating script in 16 makefiles.
-
-Version 1.2.3 [May 22, 2002]
- Revised libpng-config target in makefile.cygwin.
- Removed description of png_set_mem_fn() from documentation.
- Revised makefile.freebsd.
- Minor cosmetic changes to 15 makefiles, e.g., $(DI) = $(DESTDIR)/$(INCDIR).
- Revised projects/msvc/README.txt
- Changed -lpng to -lpngNN in LDFLAGS in several makefiles.
-
-Version 1.2.4beta1 [May 24, 2002]
- Added libpng.pc and libpng-config to "all:" target in 16 makefiles.
- Fixed bug in 16 makefiles: $(DESTDIR)/$(LIBPATH) to $(DESTDIR)$(LIBPATH)
- Added missing "\" before closing double quote in makefile.gcmmx.
- Plugged various memory leaks; added png_malloc_warn() and png_set_text_2()
- functions.
-
-Version 1.2.4beta2 [June 25, 2002]
- Plugged memory leak of png_ptr->current_text (Matt Holgate).
- Check for buffer overflow before reading CRC in pngpread.c (Warwick Allison)
- Added -soname to the loader flags in makefile.dec, makefile.sgi, and
- makefile.sggcc.
- Added "test-installed" target to makefile.linux, makefile.gcmmx,
- makefile.sgi, and makefile.sggcc.
-
-Version 1.2.4beta3 [June 28, 2002]
- Plugged memory leak of row_buf in pngtest.c when there is a png_error().
- Detect buffer overflow in pngpread.c when IDAT is corrupted with extra data.
- Added "test-installed" target to makefile.32sunu, makefile.64sunu,
- makefile.beos, makefile.darwin, makefile.dec, makefile.macosx,
- makefile.solaris, makefile.hpux, makefile.hpgcc, and makefile.so9.
-
-Version 1.2.4rc1 and 1.0.14rc1 [July 2, 2002]
- Added "test-installed" target to makefile.cygwin and makefile.sco.
- Revised pnggccrd.c to be able to back out version 1.0.x via PNG_1_0_X macro.
-
-Version 1.2.4 and 1.0.14 [July 8, 2002]
- Changed png_warning() to png_error() when width is too large to process.
-
-Version 1.2.4patch01 [July 20, 2002]
- Revised makefile.cygwin to use DLL number 12 instead of 13.
-
-Version 1.2.5beta1 [August 6, 2002]
- Added code to contrib/gregbook/readpng2.c to ignore unused chunks.
- Replaced toucan.png in contrib/gregbook (it has been corrupt since 1.0.11)
- Removed some stray *.o files from contrib/gregbook.
- Changed png_error() to png_warning() about "Too much data" in pngpread.c
- and about "Extra compressed data" in pngrutil.c.
- Prevent png_ptr->pass from exceeding 7 in png_push_finish_row().
- Updated makefile.hpgcc
- Updated png.c and pnggccrd.c handling of return from png_mmx_support()
-
-Version 1.2.5beta2 [August 15, 2002]
- Only issue png_warning() about "Too much data" in pngpread.c when avail_in
- is nonzero.
- Updated makefiles to install a separate libpng.so.3 with its own rpath.
-
-Version 1.2.5rc1 and 1.0.15rc1 [August 24, 2002]
- Revised makefiles to not remove previous minor versions of shared libraries.
-
-Version 1.2.5rc2 and 1.0.15rc2 [September 16, 2002]
- Revised 13 makefiles to remove "-lz" and "-L$(ZLIBLIB)", etc., from shared
- library loader directive.
- Added missing "$OBJSDLL" line to makefile.gcmmx.
- Added missing "; fi" to makefile.32sunu.
-
-Version 1.2.5rc3 and 1.0.15rc3 [September 18, 2002]
- Revised libpng-config script.
-
-Version 1.2.5 and 1.0.15 [October 3, 2002]
- Revised makefile.macosx, makefile.darwin, makefile.hpgcc, and makefile.hpux,
- and makefile.aix.
- Relocated two misplaced PNGAPI lines in pngtest.c
-
-Version 1.2.6beta1 [October 22, 2002]
- Commented out warning about uninitialized mmx_support in pnggccrd.c.
- Changed "IBMCPP__" flag to "__IBMCPP__" in pngconf.h.
- Relocated two more misplaced PNGAPI lines in pngtest.c
- Fixed memory overrun bug in png_do_read_filler() with 16-bit datastreams,
- introduced in version 1.0.2.
- Revised makefile.macosx, makefile.dec, makefile.aix, and makefile.32sunu.
-
-Version 1.2.6beta2 [November 1, 2002]
- Added libpng-config "--ldopts" output.
- Added "AR=ar" and "ARFLAGS=rc" and changed "ar rc" to "$(AR) $(ARFLAGS)"
- in makefiles.
-
-Version 1.2.6beta3 [July 18, 2004]
- Reverted makefile changes from version 1.2.6beta2 and some of the changes
- from version 1.2.6beta1; these will be postponed until version 1.2.7.
- Version 1.2.6 is going to be a simple bugfix release.
- Changed the one instance of "ln -sf" to "ln -f -s" in each Sun makefile.
- Fixed potential overrun in pngerror.c by using strncpy instead of memcpy.
- Added "#!/bin/sh" at the top of configure, for recognition of the
- 'x' flag under Cygwin (Cosmin).
- Optimized vacuous tests that silence compiler warnings, in png.c (Cosmin).
- Added support for PNG_USER_CONFIG, in pngconf.h (Cosmin).
- Fixed the special memory handler for Borland C under DOS, in pngmem.c
- (Cosmin).
- Removed some spurious assignments in pngrutil.c (Cosmin).
- Replaced 65536 with 65536L, and 0xffff with 0xffffL, to silence warnings
- on 16-bit platforms (Cosmin).
- Enclosed shift op expressions in parentheses, to silence warnings (Cosmin).
- Used proper type png_fixed_point, to avoid problems on 16-bit platforms,
- in png_handle_sRGB() (Cosmin).
- Added compression_type to png_struct, and optimized the window size
- inside the deflate stream (Cosmin).
- Fixed definition of isnonalpha(), in pngerror.c and pngrutil.c (Cosmin).
- Fixed handling of unknown chunks that come after IDAT (Cosmin).
- Allowed png_error() and png_warning() to work even if png_ptr == NULL
- (Cosmin).
- Replaced row_info->rowbytes with row_bytes in png_write_find_filter()
- (Cosmin).
- Fixed definition of PNG_LIBPNG_VER_DLLNUM (Simon-Pierre).
- Used PNG_LIBPNG_VER and PNG_LIBPNG_VER_STRING instead of the hardcoded
- values in png.c (Simon-Pierre, Cosmin).
- Initialized png_libpng_ver[] with PNG_LIBPNG_VER_STRING (Simon-Pierre).
- Replaced PNG_LIBPNG_VER_MAJOR with PNG_LIBPNG_VER_DLLNUM in png.rc
- (Simon-Pierre).
- Moved the definition of PNG_HEADER_VERSION_STRING near the definitions
- of the other PNG_LIBPNG_VER_... symbols in png.h (Cosmin).
- Relocated #ifndef PNGAPI guards in pngconf.h (Simon-Pierre, Cosmin).
- Updated scripts/makefile.vc(a)win32 (Cosmin).
- Updated the MSVC project (Simon-Pierre, Cosmin).
- Updated the Borland C++ Builder project (Cosmin).
- Avoided access to asm_flags in pngvcrd.c, if PNG_1_0_X is defined (Cosmin).
- Commented out warning about uninitialized mmx_support in pngvcrd.c (Cosmin).
- Removed scripts/makefile.bd32 and scripts/pngdef.pas (Cosmin).
- Added extra guard around inclusion of Turbo C memory headers, in pngconf.h
- (Cosmin).
- Renamed projects/msvc/ to projects/visualc6/, and projects/borland/ to
- projects/cbuilder5/ (Cosmin).
- Moved projects/visualc6/png32ms.def to scripts/pngw32.def,
- and projects/visualc6/png.rc to scripts/pngw32.rc (Cosmin).
- Added projects/visualc6/pngtest.dsp; removed contrib/msvctest/ (Cosmin).
- Changed line endings to DOS style in cbuilder5 and visualc6 files, even
- in the tar.* distributions (Cosmin).
- Updated contrib/visupng/VisualPng.dsp (Cosmin).
- Updated contrib/visupng/cexcept.h to version 2.0.0 (Cosmin).
- Added a separate distribution with "configure" and supporting files (Junichi).
-
-Version 1.2.6beta4 [July 28, 2004]
- Added user ability to change png_size_t via a PNG_SIZE_T macro.
- Added png_sizeof() and png_convert_size() functions.
- Added PNG_SIZE_MAX (maximum value of a png_size_t variable.
- Added check in png_malloc_default() for (size_t)size != (png_uint_32)size
- which would indicate an overflow.
- Changed sPLT failure action from png_error to png_warning and abandon chunk.
- Changed sCAL and iCCP failures from png_error to png_warning and abandon.
- Added png_get_uint_31(png_ptr, buf) function.
- Added PNG_UINT_32_MAX macro.
- Renamed PNG_MAX_UINT to PNG_UINT_31_MAX.
- Made png_zalloc() issue a png_warning and return NULL on potential
- overflow.
- Turn on PNG_NO_ZALLOC_ZERO by default in version 1.2.x
- Revised "clobber list" in pnggccrd.c so it will compile under gcc-3.4.
- Revised Borland portion of png_malloc() to return NULL or issue
- png_error() according to setting of PNG_FLAG_MALLOC_NULL_MEM_OK.
- Added PNG_NO_SEQUENTIAL_READ_SUPPORTED macro to conditionally remove
- sequential read support.
- Added some "#if PNG_WRITE_SUPPORTED" blocks.
- Added #ifdef to remove some redundancy in png_malloc_default().
- Use png_malloc instead of png_zalloc to allocate the palette.
-
-Version 1.0.16rc1 and 1.2.6rc1 [August 4, 2004]
- Fixed buffer overflow vulnerability (CVE-2004-0597) in png_handle_tRNS().
- Fixed NULL dereference vulnerability (CVE-2004-0598) in png_handle_iCCP().
- Fixed integer overflow vulnerability (CVE-2004-0599) in png_read_png().
- Fixed some harmless bugs in png_handle_sBIT, etc, that would cause
- duplicate chunk types to go undetected.
- Fixed some timestamps in the -config version
- Rearranged order of processing of color types in png_handle_tRNS().
- Added ROWBYTES macro to calculate rowbytes without integer overflow.
- Updated makefile.darwin and removed makefile.macosx from scripts directory.
- Imposed default one million column, one-million row limits on the image
- dimensions, and added png_set_user_limits() function to override them.
- Revised use of PNG_SET_USER_LIMITS_SUPPORTED macro.
- Fixed wrong cast of returns from png_get_user_width|height_max().
- Changed some "keep the compiler happy" from empty statements to returns,
- Revised libpng.txt to remove 1.2.x stuff from the 1.0.x distribution
-
-Version 1.0.16rc2 and 1.2.6rc2 [August 7, 2004]
- Revised makefile.darwin and makefile.solaris. Removed makefile.macosx.
- Revised pngtest's png_debug_malloc() to use png_malloc() instead of
- png_malloc_default() which is not supposed to be exported.
- Fixed off-by-one error in one of the conversions to PNG_ROWBYTES() in
- pngpread.c. Bug was introduced in 1.2.6rc1.
- Fixed bug in RGB to RGBX transformation introduced in 1.2.6rc1.
- Fixed old bug in RGB to Gray transformation.
- Fixed problem with 64-bit compilers by casting arguments to abs()
- to png_int_32.
- Changed "ln -sf" to "ln -f -s" in three makefiles (solaris, sco, so9).
- Changed "HANDLE_CHUNK_*" to "PNG_HANDLE_CHUNK_*" (Cosmin)
- Added "-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)" to 15 *NIX makefiles.
- Added code to update the row_info->colortype in png_do_read_filler() (MSB).
-
-Version 1.0.16rc3 and 1.2.6rc3 [August 9, 2004]
- Eliminated use of "abs()" in testing cHRM and gAMA values, to avoid
- trouble with some 64-bit compilers. Created PNG_OUT_OF_RANGE() macro.
- Revised documentation of png_set_keep_unknown_chunks().
- Check handle_as_unknown status in pngpread.c, as in pngread.c previously.
- Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_INTERNAL section of png.h
- Added "rim" definitions for CONST4 and CONST6 in pnggccrd.c
-
-Version 1.0.16rc4 and 1.2.6rc4 [August 10, 2004]
- Fixed mistake in pngtest.c introduced in 1.2.6rc2 (declaration of
- "pinfo" was out of place).
-
-Version 1.0.16rc5 and 1.2.6rc5 [August 10, 2004]
- Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_ASSEMBLER_CODE_SUPPORTED
- section of png.h where they were inadvertently placed in version rc3.
-
-Version 1.2.6 and 1.0.16 [August 15, 2004]
- Revised pngtest so memory allocation testing is only done when PNG_DEBUG==1.
-
-Version 1.2.7beta1 [August 26, 2004]
- Removed unused pngasmrd.h file.
- Removed references to uu.net for archived files. Added references to
- PNG Spec (second edition) and the PNG ISO/IEC Standard.
- Added "test-dd" target in 15 makefiles, to run pngtest in DESTDIR.
- Fixed bug with "optimized window size" in the IDAT datastream, that
- causes libpng to write PNG files with incorrect zlib header bytes.
-
-Version 1.2.7beta2 [August 28, 2004]
- Fixed bug with sCAL chunk and big-endian machines (David Munro).
- Undid new code added in 1.2.6rc2 to update the color_type in
- png_set_filler().
- Added png_set_add_alpha() that updates color type.
-
-Version 1.0.17rc1 and 1.2.7rc1 [September 4, 2004]
- Revised png_set_strip_filler() to not remove alpha if color_type has alpha.
-
-Version 1.2.7 and 1.0.17 [September 12, 2004]
- Added makefile.hp64
- Changed projects/msvc/png32ms.def to scripts/png32ms.def in makefile.cygwin
-
-Version 1.2.8beta1 [November 1, 2004]
- Fixed bug in png_text_compress() that would fail to complete a large block.
- Fixed bug, introduced in libpng-1.2.7, that overruns a buffer during
- strip alpha operation in png_do_strip_filler().
- Added PNG_1_2_X definition in pngconf.h
- Use #ifdef to comment out png_info_init in png.c and png_read_init in
- pngread.c (as of 1.3.0)
-
-Version 1.2.8beta2 [November 2, 2004]
- Reduce color_type to a nonalpha type after strip alpha operation in
- png_do_strip_filler().
-
-Version 1.2.8beta3 [November 3, 2004]
- Revised definitions of PNG_MAX_UINT_32, PNG_MAX_SIZE, and PNG_MAXSUM
-
-Version 1.2.8beta4 [November 12, 2004]
- Fixed (again) definition of PNG_LIBPNG_VER_DLLNUM in png.h (Cosmin).
- Added PNG_LIBPNG_BUILD_PRIVATE in png.h (Cosmin).
- Set png_ptr->zstream.data_type to Z_BINARY, to avoid unnecessary detection
- of data type in deflate (Cosmin).
- Deprecated but continue to support SPECIALBUILD and PRIVATEBUILD in favor of
- PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING.
-
-Version 1.2.8beta5 [November 20, 2004]
- Use png_ptr->flags instead of png_ptr->transformations to pass
- PNG_STRIP_ALPHA info to png_do_strip_filler(), to preserve ABI
- compatibility.
- Revised handling of SPECIALBUILD, PRIVATEBUILD,
- PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING.
-
-Version 1.2.8rc1 [November 24, 2004]
- Moved handling of BUILD macros from pngconf.h to png.h
- Added definition of PNG_LIBPNG_BASE_TYPE in png.h, inadvertently
- omitted from beta5.
- Revised scripts/pngw32.rc
- Despammed mailing addresses by masking "@" with "at".
- Inadvertently installed a supposedly faster test version of pngrutil.c
-
-Version 1.2.8rc2 [November 26, 2004]
- Added two missing "\" in png.h
- Change tests in pngread.c and pngpread.c to
- if (png_ptr->transformations || (png_ptr->flags&PNG_FLAG_STRIP_ALPHA))
- png_do_read_transformations(png_ptr);
-
-Version 1.2.8rc3 [November 28, 2004]
- Reverted pngrutil.c to version libpng-1.2.8beta5.
- Added scripts/makefile.elf with supporting code in pngconf.h for symbol
- versioning (John Bowler).
-
-Version 1.2.8rc4 [November 29, 2004]
- Added projects/visualc7 (Simon-pierre).
-
-Version 1.2.8rc5 [November 29, 2004]
- Fixed new typo in scripts/pngw32.rc
-
-Version 1.2.8 [December 3, 2004]
- Removed projects/visualc7, added projects/visualc71.
-
-Version 1.2.9beta1 [February 21, 2006]
- Initialized some structure members in pngwutil.c to avoid gcc-4.0.0 complaints
- Revised man page and libpng.txt to make it clear that one should not call
- png_read_end or png_write_end after png_read_png or png_write_png.
- Updated references to png-mng-implement mailing list.
- Fixed an incorrect typecast in pngrutil.c
- Added PNG_NO_READ_SUPPORTED conditional for making a write-only library.
- Added PNG_NO_WRITE_INTERLACING_SUPPORTED conditional.
- Optimized alpha-inversion loops in pngwtran.c
- Moved test for nonzero gamma outside of png_build_gamma_table() in pngrtran.c
- Make sure num_trans is <= 256 before copying data in png_set_tRNS().
- Make sure num_palette is <= 256 before copying data in png_set_PLTE().
- Interchanged order of write_swap_alpha and write_invert_alpha transforms.
- Added parentheses in the definition of PNG_LIBPNG_BUILD_TYPE (Cosmin).
- Optimized zlib window flag (CINFO) in contrib/pngsuite/*.png (Cosmin).
- Updated scripts/makefile.bc32 for Borland C++ 5.6 (Cosmin).
- Exported png_get_uint_32, png_save_uint_32, png_get_uint_16, png_save_uint_16,
- png_get_int_32, png_save_int_32, png_get_uint_31 (Cosmin).
- Added type cast (png_byte) in png_write_sCAL() (Cosmin).
- Fixed scripts/makefile.cygwin (Christian Biesinger, Cosmin).
- Default iTXt support was inadvertently enabled.
-
-Version 1.2.9beta2 [February 21, 2006]
- Check for png_rgb_to_gray and png_gray_to_rgb read transformations before
- checking for png_read_dither in pngrtran.c
- Revised checking of chromaticity limits to accommodate extended RGB
- colorspace (John Denker).
- Changed line endings in some of the project files to CRLF, even in the
- "Unix" tar distributions (Cosmin).
- Made png_get_int_32 and png_save_int_32 always available (Cosmin).
- Updated scripts/pngos2.def, scripts/pngw32.def and projects/wince/png32ce.def
- with the newly exported functions.
- Eliminated distributions without the "configure" script.
- Updated INSTALL instructions.
-
-Version 1.2.9beta3 [February 24, 2006]
- Fixed CRCRLF line endings in contrib/visupng/VisualPng.dsp
- Made libpng.pc respect EXEC_PREFIX (D. P. Kreil, J. Bowler)
- Removed reference to pngasmrd.h from Makefile.am
- Renamed CHANGES to ChangeLog.
- Renamed LICENSE to COPYING.
- Renamed ANNOUNCE to NEWS.
- Created AUTHORS file.
-
-Version 1.2.9beta4 [March 3, 2006]
- Changed definition of PKGCONFIG from $prefix/lib to $libdir in configure.ac
- Reverted to filenames LICENSE and ANNOUNCE; removed AUTHORS and COPYING.
- Removed newline from the end of some error and warning messages.
- Removed test for sqrt() from configure.ac and configure.
- Made swap tables in pngtrans.c PNG_CONST (Carlo Bramix).
- Disabled default iTXt support that was inadvertently enabled in
- libpng-1.2.9beta1.
- Added "OS2" to list of systems that don't need underscores, in pnggccrd.c
- Removed libpng version and date from *.c files.
-
-Version 1.2.9beta5 [March 4, 2006]
- Removed trailing blanks from source files.
- Put version and date of latest change in each source file, and changed
- copyright year accordingly.
- More cleanup of configure.ac, Makefile.am, and associated scripts.
- Restored scripts/makefile.elf which was inadvertently deleted.
-
-Version 1.2.9beta6 [March 6, 2006]
- Fixed typo (RELEASE) in configuration files.
-
-Version 1.2.9beta7 [March 7, 2006]
- Removed libpng.vers and libpng.sym from libpng12_la_SOURCES in Makefile.am
- Fixed inconsistent #ifdef's around png_sig_bytes() and png_set_sCAL_s()
- in png.h.
- Updated makefile.elf as suggested by debian.
- Made cosmetic changes to some makefiles, adding LN_SF and other macros.
- Made some makefiles accept "exec_prefix".
-
-Version 1.2.9beta8 [March 9, 2006]
- Fixed some "#if defined (..." which should be "#if defined(..."
- Bug introduced in libpng-1.2.8.
- Fixed inconsistency in definition of png_default_read_data()
- Restored blank that was lost from makefile.sggcc "clean" target in beta7.
- Revised calculation of "current" and "major" for irix in ltmain.sh
- Changed "mkdir" to "MKDIR_P" in some makefiles.
- Separated PNG_EXPAND and PNG_EXPAND_tRNS.
- Added png_set_expand_gray_1_2_4_to_8() and deprecated
- png_set_gray_1_2_4_to_8() which also expands tRNS to alpha.
-
-Version 1.2.9beta9 [March 10, 2006]
- Include "config.h" in pngconf.h when available.
- Added some checks for NULL png_ptr or NULL info_ptr (timeless)
-
-Version 1.2.9beta10 [March 20, 2006]
- Removed extra CR from contrib/visualpng/VisualPng.dsw (Cosmin)
- Made pnggccrd.c PIC-compliant (Christian Aichinger).
- Added makefile.mingw (Wolfgang Glas).
- Revised pngconf.h MMX checking.
-
-Version 1.2.9beta11 [March 22, 2006]
- Fixed out-of-order declaration in pngwrite.c that was introduced in beta9
- Simplified some makefiles by using LIBSO, LIBSOMAJ, and LIBSOVER macros.
-
-Version 1.2.9rc1 [March 31, 2006]
- Defined PNG_USER_PRIVATEBUILD when including "pngusr.h" (Cosmin).
- Removed nonsensical assertion check from pngtest.c (Cosmin).
-
-Version 1.2.9 [April 14, 2006]
- Revised makefile.beos and added "none" selector in ltmain.sh
-
-Version 1.2.10beta1 [April 15, 2006]
- Renamed "config.h" to "png_conf.h" and revised Makefile.am to add
- -DPNG_BUILDING_LIBPNG to compile directive, and modified pngconf.h
- to include png_conf.h only when PNG_BUILDING_LIBPNG is defined.
-
-Version 1.2.10beta2 [April 15, 2006]
- Manually updated Makefile.in and configure. Changed png_conf.h.in
- back to config.h.
-
-Version 1.2.10beta3 [April 15, 2006]
- Change png_conf.h back to config.h in pngconf.h.
-
-Version 1.2.10beta4 [April 16, 2006]
- Change PNG_BUILDING_LIBPNG to PNG_CONFIGURE_LIBPNG in config/Makefile*.
-
-Version 1.2.10beta5 [April 16, 2006]
- Added a configure check for compiling assembler code in pnggccrd.c
-
-Version 1.2.10beta6 [April 17, 2006]
- Revised the configure check for pnggccrd.c
- Moved -DPNG_CONFIGURE_LIBPNG into @LIBPNG_DEFINES@
- Added @LIBPNG_DEFINES@ to arguments when building libpng.sym
-
-Version 1.2.10beta7 [April 18, 2006]
- Change "exec_prefix=$prefix" to "exec_prefix=$(prefix)" in makefiles.
-
-Version 1.2.10rc1 [April 19, 2006]
- Ensure pngconf.h doesn't define both PNG_USE_PNGGCCRD and PNG_USE_PNGVCRD
- Fixed "LN_FS" typo in makefile.sco and makefile.solaris.
-
-Version 1.2.10rc2 [April 20, 2006]
- Added a backslash between -DPNG_CONFIGURE_LIBPNG and -DPNG_NO_ASSEMBLER_CODE
- in configure.ac and configure
- Made the configure warning about versioned symbols less arrogant.
-
-Version 1.2.10rc3 [April 21, 2006]
- Added a note in libpng.txt that png_set_sig_bytes(8) can be used when
- writing an embedded PNG without the 8-byte signature.
- Revised makefiles and configure to avoid making links to libpng.so.*
-
-Version 1.2.10 [April 23, 2006]
- Reverted configure to "rc2" state.
-
-Version 1.2.11beta1 [May 31, 2006]
- scripts/libpng.pc.in contained "configure" style version info and would
- not work with makefiles.
- The shared-library makefiles were linking to libpng.so.0 instead of
- libpng.so.3 compatibility as the library.
-
-Version 1.2.11beta2 [June 2, 2006]
- Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid
- buffer overflow.
- Fixed bug in example.c (png_set_palette_rgb -> png_set_palette_to_rgb)
-
-Version 1.2.11beta3 [June 5, 2006]
- Prepended "#! /bin/sh" to ltmail.sh and contrib/pngminus/*.sh (Cosmin).
- Removed the accidental leftover Makefile.in~ (Cosmin).
- Avoided potential buffer overflow and optimized buffer in
- png_write_sCAL(), png_write_sCAL_s() (Cosmin).
- Removed the include directories and libraries from CFLAGS and LDFLAGS
- in scripts/makefile.gcc (Nelson A. de Oliveira, Cosmin).
-
-Version 1.2.11beta4 [June 6, 2006]
- Allow zero-length IDAT chunks after the entire zlib datastream, but not
- after another intervening chunk type.
-
-Version 1.0.19rc1, 1.2.11rc1 [June 13, 2006]
- Deleted extraneous square brackets from [config.h] in configure.ac
-
-Version 1.0.19rc2, 1.2.11rc2 [June 14, 2006]
- Added prototypes for PNG_INCH_CONVERSIONS functions to png.h
- Revised INSTALL and autogen.sh
- Fixed typo in several makefiles (-W1 should be -Wl)
- Added typedef for png_int_32 and png_uint_32 on 64-bit systems.
-
-Version 1.0.19rc3, 1.2.11rc3 [June 15, 2006]
- Removed the new typedefs for 64-bit systems (delay until version 1.4.0)
- Added one zero element to png_gamma_shift[] array in pngrtran.c to avoid
- reading out of bounds.
-
-Version 1.0.19rc4, 1.2.11rc4 [June 15, 2006]
- Really removed the new typedefs for 64-bit systems.
-
-Version 1.0.19rc5, 1.2.11rc5 [June 22, 2006]
- Removed png_sig_bytes entry from scripts/pngw32.def
-
-Version 1.0.19, 1.2.11 [June 26, 2006]
- None.
-
-Version 1.0.20, 1.2.12 [June 27, 2006]
- Really increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid
- buffer overflow.
-
-Version 1.2.13beta1 [October 2, 2006]
- Removed AC_FUNC_MALLOC from configure.ac
- Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h
- Change "logical" to "bitwise" throughout documentation.
- Detect and fix attempt to write wrong iCCP profile length (CVE-2006-7244)
-
-Version 1.0.21, 1.2.13 [November 14, 2006]
- Fix potential buffer overflow in sPLT chunk handler.
- Fix Makefile.am to not try to link to noexistent files.
- Check all exported functions for NULL png_ptr.
-
-Version 1.2.14beta1 [November 17, 2006]
- Relocated three misplaced tests for NULL png_ptr.
- Built Makefile.in with automake-1.9.6 instead of 1.9.2.
- Build configure with autoconf-2.60 instead of 2.59
-
-Version 1.2.14beta2 [November 17, 2006]
- Added some typecasts in png_zalloc().
-
-Version 1.2.14rc1 [November 20, 2006]
- Changed "strtod" to "png_strtod" in pngrutil.c
-
-Version 1.0.22, 1.2.14 [November 27, 2006]
- Added missing "$(srcdir)" in Makefile.am and Makefile.in
-
-Version 1.2.15beta1 [December 3, 2006]
- Generated configure with autoconf-2.61 instead of 2.60
- Revised configure.ac to update libpng.pc and libpng-config.
-
-Version 1.2.15beta2 [December 3, 2006]
- Always export MMX asm functions, just stubs if not building pnggccrd.c
-
-Version 1.2.15beta3 [December 4, 2006]
- Add "png_bytep" typecast to profile while calculating length in pngwutil.c
-
-Version 1.2.15beta4 [December 7, 2006]
- Added scripts/CMakeLists.txt
- Changed PNG_NO_ASSEMBLER_CODE to PNG_NO_MMX_CODE in scripts, like 1.4.0beta
-
-Version 1.2.15beta5 [December 7, 2006]
- Changed some instances of PNG_ASSEMBLER_* to PNG_MMX_* in pnggccrd.c
- Revised scripts/CMakeLists.txt
-
-Version 1.2.15beta6 [December 13, 2006]
- Revised scripts/CMakeLists.txt and configure.ac
-
-Version 1.2.15rc1 [December 18, 2006]
- Revised scripts/CMakeLists.txt
-
-Version 1.2.15rc2 [December 21, 2006]
- Added conditional #undef jmpbuf in pngtest.c to undo #define in AIX headers.
- Added scripts/makefile.nommx
-
-Version 1.2.15rc3 [December 25, 2006]
- Fixed shared library numbering error that was introduced in 1.2.15beta6.
-
-Version 1.2.15rc4 [December 27, 2006]
- Fixed handling of rgb_to_gray when png_ptr->color.gray isn't set.
-
-Version 1.2.15rc5 [December 31, 2006]
- Revised handling of rgb_to_gray.
-
-Version 1.2.15 [January 5, 2007]
- Added some (unsigned long) typecasts in pngtest.c to avoid printing errors.
-
-Version 1.2.16beta1 [January 6, 2007]
- Fix bugs in makefile.nommx
-
-Version 1.2.16beta2 [January 16, 2007]
- Revised scripts/CMakeLists.txt
-
-Version 1.2.16 [January 31, 2007]
- No changes.
-
-Version 1.2.17beta1 [March 6, 2007]
- Revised scripts/CMakeLists.txt to install both shared and static libraries.
- Deleted a redundant line from pngset.c.
-
-Version 1.2.17beta2 [April 26, 2007]
- Relocated misplaced test for png_ptr == NULL in pngpread.c
- Change "==" to "&" for testing PNG_RGB_TO_GRAY_ERR & PNG_RGB_TO_GRAY_WARN
- flags.
- Changed remaining instances of PNG_ASSEMBLER_* to PNG_MMX_*
- Added pngerror() when write_IHDR fails in deflateInit2().
- Added "const" to some array declarations.
- Mention examples of libpng usage in the libpng*.txt and libpng.3 documents.
-
-Version 1.2.17rc1 [May 4, 2007]
- No changes.
-
-Version 1.2.17rc2 [May 8, 2007]
- Moved several PNG_HAVE_* macros out of PNG_INTERNAL because applications
- calling set_unknown_chunk_location() need them.
- Changed transformation flag from PNG_EXPAND_tRNS to PNG_EXPAND in
- png_set_expand_gray_1_2_4_to_8().
- Added png_ptr->unknown_chunk to hold working unknown chunk data, so it
- can be free'ed in case of error. Revised unknown chunk handling in
- pngrutil.c and pngpread.c to use this structure.
-
-Version 1.2.17rc3 [May 8, 2007]
- Revised symbol-handling in configure script.
-
-Version 1.2.17rc4 [May 10, 2007]
- Revised unknown chunk handling to avoid storing unknown critical chunks.
-
-Version 1.0.25 [May 15, 2007]
-Version 1.2.17 [May 15, 2007]
- Added "png_ptr->num_trans=0" before error return in png_handle_tRNS,
- to eliminate a vulnerability (CVE-2007-2445, CERT VU#684664)
-
-Version 1.0.26 [May 15, 2007]
-Version 1.2.18 [May 15, 2007]
- Reverted the libpng-1.2.17rc3 change to symbol-handling in configure script
-
-Version 1.2.19beta1 [May 18, 2007]
- Changed "const static" to "static PNG_CONST" everywhere, mostly undoing
- change of libpng-1.2.17beta2. Changed other "const" to "PNG_CONST"
- Changed some handling of unused parameters, to avoid compiler warnings.
- "if (unused == NULL) return;" becomes "unused = unused".
-
-Version 1.2.19beta2 [May 18, 2007]
- Only use the valid bits of tRNS value in png_do_expand() (Brian Cartier)
-
-Version 1.2.19beta3 [May 19, 2007]
- Add some "png_byte" typecasts in png_check_keyword() and write new_key
- instead of key in zTXt chunk (Kevin Ryde).
-
-Version 1.2.19beta4 [May 21, 2007]
- Add png_snprintf() function and use it in place of sprint() for improved
- defense against buffer overflows.
-
-Version 1.2.19beta5 [May 21, 2007]
- Fixed png_handle_tRNS() to only use the valid bits of tRNS value.
- Changed handling of more unused parameters, to avoid compiler warnings.
- Removed some PNG_CONST in pngwutil.c to avoid compiler warnings.
-
-Version 1.2.19beta6 [May 22, 2007]
- Added some #ifdef PNG_MMX_CODE_SUPPORTED where needed in pngvcrd.c
- Added a special "_MSC_VER" case that defines png_snprintf to _snprintf
-
-Version 1.2.19beta7 [May 22, 2007]
- Squelched png_squelch_warnings() in pnggccrd.c and added
- an #ifdef PNG_MMX_CODE_SUPPORTED block around the declarations that caused
- the warnings that png_squelch_warnings was squelching.
-
-Version 1.2.19beta8 [May 22, 2007]
- Removed __MMX__ from test in pngconf.h.
-
-Version 1.2.19beta9 [May 23, 2007]
- Made png_squelch_warnings() available via PNG_SQUELCH_WARNINGS macro.
- Revised png_squelch_warnings() so it might work.
- Updated makefile.sgcc and makefile.solaris; added makefile.solaris-x86.
-
-Version 1.2.19beta10 [May 24, 2007]
- Resquelched png_squelch_warnings(), use "__attribute__((used))" instead.
-
-Version 1.4.0beta1 [April 20, 2006]
- Enabled iTXt support (changes png_struct, thus requires so-number change).
- Cleaned up PNG_ASSEMBLER_CODE_SUPPORTED vs PNG_MMX_CODE_SUPPORTED
- Eliminated PNG_1_0_X and PNG_1_2_X macros.
- Removed deprecated functions png_read_init, png_write_init, png_info_init,
- png_permit_empty_plte, png_set_gray_1_2_4_to_8, png_check_sig, and
- removed the deprecated macro PNG_MAX_UINT.
- Moved "PNG_INTERNAL" parts of png.h and pngconf.h into pngintrn.h
- Removed many WIN32_WCE #ifdefs (Cosmin).
- Reduced dependency on C-runtime library when on Windows (Simon-Pierre)
- Replaced sprintf() with png_sprintf() (Simon-Pierre)
-
-Version 1.4.0beta2 [April 20, 2006]
- Revised makefiles and configure to avoid making links to libpng.so.*
- Moved some leftover MMX-related defines from pngconf.h to pngintrn.h
- Updated scripts/pngos2.def, pngw32.def, and projects/wince/png32ce.def
-
-Version 1.4.0beta3 [May 10, 2006]
- Updated scripts/pngw32.def to comment out MMX functions.
- Added PNG_NO_GET_INT_32 and PNG_NO_SAVE_INT_32 macros.
- Scripts/libpng.pc.in contained "configure" style version info and would
- not work with makefiles.
- Revised pngconf.h and added pngconf.h.in, so makefiles and configure can
- pass defines to libpng and applications.
-
-Version 1.4.0beta4 [May 11, 2006]
- Revised configure.ac, Makefile.am, and many of the makefiles to write
- their defines in pngconf.h.
-
-Version 1.4.0beta5 [May 15, 2006]
- Added a missing semicolon in Makefile.am and Makefile.in
- Deleted extraneous square brackets from configure.ac
-
-Version 1.4.0beta6 [June 2, 2006]
- Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid
- buffer overflow.
- Changed sonum from 0 to 1.
- Removed unused prototype for png_check_sig() from png.h
-
-Version 1.4.0beta7 [June 16, 2006]
- Exported png_write_sig (Cosmin).
- Optimized buffer in png_handle_cHRM() (Cosmin).
- Set pHYs = 2835 x 2835 pixels per meter, and added
- sCAL = 0.352778e-3 x 0.352778e-3 meters, in pngtest.png (Cosmin).
- Added png_set_benign_errors(), png_benign_error(), png_chunk_benign_error().
- Added typedef for png_int_32 and png_uint_32 on 64-bit systems.
- Added "(unsigned long)" typecast on png_uint_32 variables in printf lists.
-
-Version 1.4.0beta8 [June 22, 2006]
- Added demonstration of user chunk support in pngtest.c, to support the
- public sTER chunk and a private vpAg chunk.
-
-Version 1.4.0beta9 [July 3, 2006]
- Removed ordinals from scripts/pngw32.def and removed png_info_int and
- png_set_gray_1_2_4_to_8 entries.
- Inline call of png_get_uint_32() in png_get_uint_31().
- Use png_get_uint_31() to get vpAg width and height in pngtest.c
- Removed WINCE and Netware projects.
- Removed standalone Y2KINFO file.
-
-Version 1.4.0beta10 [July 12, 2006]
- Eliminated automatic copy of pngconf.h to pngconf.h.in from configure and
- some makefiles, because it was not working reliably. Instead, distribute
- pngconf.h.in along with pngconf.h and cause configure and some of the
- makefiles to update pngconf.h from pngconf.h.in.
- Added pngconf.h to DEPENDENCIES in Makefile.am
-
-Version 1.4.0beta11 [August 19, 2006]
- Removed AC_FUNC_MALLOC from configure.ac.
- Added a warning when writing iCCP profile with mismatched profile length.
- Patched pnggccrd.c to assemble on x86_64 platforms.
- Moved chunk header reading into a separate function png_read_chunk_header()
- in pngrutil.c. The chunk header (len+sig) is now serialized in a single
- operation (Cosmin).
- Implemented support for I/O states. Added png_ptr member io_state, and
- functions png_get_io_chunk_name() and png_get_io_state() in pngget.c
- (Cosmin).
- Added png_get_io_chunk_name and png_get_io_state to scripts/*.def (Cosmin).
- Renamed scripts/pngw32.* to scripts/pngwin.* (Cosmin).
- Removed the include directories and libraries from CFLAGS and LDFLAGS
- in scripts/makefile.gcc (Cosmin).
- Used png_save_uint_32() to set vpAg width and height in pngtest.c (Cosmin).
- Cast to proper type when getting/setting vpAg units in pngtest.c (Cosmin).
- Added pngintrn.h to the Visual C++ projects (Cosmin).
- Removed scripts/list (Cosmin).
- Updated copyright year in scripts/pngwin.def (Cosmin).
- Removed PNG_TYPECAST_NULL and used standard NULL consistently (Cosmin).
- Disallowed the user to redefine png_size_t, and enforced a consistent use
- of png_size_t across libpng (Cosmin).
- Changed the type of png_ptr->rowbytes, PNG_ROWBYTES() and friends
- to png_size_t (Cosmin).
- Removed png_convert_size() and replaced png_sizeof with sizeof (Cosmin).
- Removed some unnecessary type casts (Cosmin).
- Changed prototype of png_get_compression_buffer_size() and
- png_set_compression_buffer_size() to work with png_size_t instead of
- png_uint_32 (Cosmin).
- Removed png_memcpy_check() and png_memset_check() (Cosmin).
- Fixed a typo (png_byte --> png_bytep) in libpng.3 and libpng.txt (Cosmin).
- Clarified that png_zalloc() does not clear the allocated memory,
- and png_zalloc() and png_zfree() cannot be PNGAPI (Cosmin).
- Renamed png_mem_size_t to png_alloc_size_t, fixed its definition in
- pngconf.h, and used it in all memory allocation functions (Cosmin).
- Renamed pngintrn.h to pngpriv.h, added a comment at the top of the file
- mentioning that the symbols declared in that file are private, and
- updated the scripts and the Visual C++ projects accordingly (Cosmin).
- Removed circular references between pngconf.h and pngconf.h.in in
- scripts/makefile.vc*win32 (Cosmin).
- Removing trailing '.' from the warning and error messages (Cosmin).
- Added pngdefs.h that is built by makefile or configure, instead of
- pngconf.h.in (Glenn).
- Detect and fix attempt to write wrong iCCP profile length.
-
-Version 1.4.0beta12 [October 19, 2006]
- Changed "logical" to "bitwise" in the documentation.
- Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h
- Add a typecast to stifle compiler warning in pngrutil.c
-
-Version 1.4.0beta13 [November 10, 2006]
- Fix potential buffer overflow in sPLT chunk handler.
- Fix Makefile.am to not try to link to noexistent files.
-
-Version 1.4.0beta14 [November 15, 2006]
- Check all exported functions for NULL png_ptr.
-
-Version 1.4.0beta15 [November 17, 2006]
- Relocated two misplaced tests for NULL png_ptr.
- Built Makefile.in with automake-1.9.6 instead of 1.9.2.
- Build configure with autoconf-2.60 instead of 2.59
- Add "install: all" in Makefile.am so "configure; make install" will work.
-
-Version 1.4.0beta16 [November 17, 2006]
- Added a typecast in png_zalloc().
-
-Version 1.4.0beta17 [December 4, 2006]
- Changed "new_key[79] = '\0';" to "(*new_key)[79] = '\0';" in pngwutil.c
- Add "png_bytep" typecast to profile while calculating length in pngwutil.c
-
-Version 1.4.0beta18 [December 7, 2006]
- Added scripts/CMakeLists.txt
-
-Version 1.4.0beta19 [May 16, 2007]
- Revised scripts/CMakeLists.txt
- Rebuilt configure and Makefile.in with newer tools.
- Added conditional #undef jmpbuf in pngtest.c to undo #define in AIX headers.
- Added scripts/makefile.nommx
-
-Version 1.4.0beta20 [July 9, 2008]
- Moved several PNG_HAVE_* macros from pngpriv.h to png.h because applications
- calling set_unknown_chunk_location() need them.
- Moved several macro definitions from pngpriv.h to pngconf.h
- Merge with changes to the 1.2.X branch, as of 1.2.30beta04.
- Deleted all use of the MMX assembler code and Intel-licensed optimizations.
- Revised makefile.mingw
-
-Version 1.4.0beta21 [July 21, 2008]
- Moved local array "chunkdata" from pngrutil.c to the png_struct, so
- it will be freed by png_read_destroy() in case of a read error (Kurt
- Christensen).
-
-Version 1.4.0beta22 [July 21, 2008]
- Change "purpose" and "buffer" to png_ptr->chunkdata to avoid memory leaking.
-
-Version 1.4.0beta23 [July 22, 2008]
- Change "chunkdata = NULL" to "png_ptr->chunkdata = NULL" several places in
- png_decompress_chunk().
-
-Version 1.4.0beta24 [July 25, 2008]
- Change all remaining "chunkdata" to "png_ptr->chunkdata" in
- png_decompress_chunk(), and remove "chunkdata" from parameter list.
- Put a call to png_check_chunk_name() in png_read_chunk_header().
- Revised png_check_chunk_name() to reject a name with a lowercase 3rd byte.
- Removed two calls to png_check_chunk_name() occurring later in the process.
- Define PNG_NO_ERROR_NUMBERS by default in pngconf.h
-
-Version 1.4.0beta25 [July 30, 2008]
- Added a call to png_check_chunk_name() in pngpread.c
- Reverted png_check_chunk_name() to accept a name with a lowercase 3rd byte.
- Added png_push_have_buffer() function to pngpread.c
- Eliminated PNG_BIG_ENDIAN_SUPPORTED and associated png_get_* macros.
- Made inline expansion of png_get_*() optional with PNG_USE_READ_MACROS.
- Eliminated all PNG_USELESS_TESTS and PNG_CORRECT_PALETTE_SUPPORTED code.
- Synced contrib directory and configure files with libpng-1.2.30beta06.
- Eliminated no-longer-used pngdefs.h (but it's still built in the makefiles)
- Relocated a misplaced "#endif /* PNG_NO_WRITE_FILTER */" in pngwutil.c
-
-Version 1.4.0beta26 [August 4, 2008]
- Removed png_push_have_buffer() function in pngpread.c. It increased the
- compiled library size slightly.
- Changed "-Wall" to "-W -Wall" in the CFLAGS in all makefiles (Cosmin Truta)
- Declared png_ptr "volatile" in pngread.c and pngwrite.c to avoid warnings.
- Updated contrib/visupng/cexcept.h to version 2.0.1
- Added PNG_LITERAL_CHARACTER macros for #, [, and ].
-
-Version 1.4.0beta27 [August 5, 2008]
- Revised usage of PNG_LITERAL_SHARP in pngerror.c.
- Moved newline character from individual png_debug messages into the
- png_debug macros.
- Allow user to #define their own png_debug, png_debug1, and png_debug2.
-
-Version 1.4.0beta28 [August 5, 2008]
- Revised usage of PNG_LITERAL_SHARP in pngerror.c.
- Added PNG_STRING_NEWLINE macro
-
-Version 1.4.0beta29 [August 9, 2008]
- Revised usage of PNG_STRING_NEWLINE to work on non-ISO compilers.
- Added PNG_STRING_COPYRIGHT macro.
- Added non-ISO versions of png_debug macros.
-
-Version 1.4.0beta30 [August 14, 2008]
- Added premultiplied alpha feature (Volker Wiendl).
-
-Version 1.4.0beta31 [August 18, 2008]
- Moved png_set_premultiply_alpha from pngtrans.c to pngrtran.c
- Removed extra crc check at the end of png_handle_cHRM(). Bug introduced
- in libpng-1.4.0beta20.
-
-Version 1.4.0beta32 [August 19, 2008]
- Added PNG_WRITE_FLUSH_SUPPORTED block around new png_flush() call.
- Revised PNG_NO_STDIO version of png_write_flush()
-
-Version 1.4.0beta33 [August 20, 2008]
- Added png_get|set_chunk_cache_max() to limit the total number of sPLT,
- text, and unknown chunks that can be stored.
-
-Version 1.4.0beta34 [September 6, 2008]
- Shortened tIME_string to 29 bytes in pngtest.c
- Fixed off-by-one error introduced in png_push_read_zTXt() function in
- libpng-1.2.30beta04/pngpread.c (Harald van Dijk)
-
-Version 1.4.0beta35 [October 6, 2008]
- Changed "trans_values" to "trans_color".
- Changed so-number from 0 to 14. Some OS do not like 0.
- Revised makefile.darwin to fix shared library numbering.
- Change png_set_gray_1_2_4_to_8() to png_set_expand_gray_1_2_4_to_8()
- in example.c (debian bug report)
-
-Version 1.4.0beta36 [October 25, 2008]
- Sync with tEXt vulnerability fix in libpng-1.2.33rc02.
-
-Version 1.4.0beta37 [November 13, 2008]
- Added png_check_cHRM in png.c and moved checking from pngget.c, pngrutil.c,
- and pngwrite.c
-
-Version 1.4.0beta38 [November 22, 2008]
- Added check for zero-area RGB cHRM triangle in png_check_cHRM() and
- png_check_cHRM_fixed().
-
-Version 1.4.0beta39 [November 23, 2008]
- Revised png_warning() to write its message on standard output by default
- when warning_fn is NULL.
-
-Version 1.4.0beta40 [November 24, 2008]
- Eliminated png_check_cHRM(). Instead, always use png_check_cHRM_fixed().
- In png_check_cHRM_fixed(), ensure white_y is > 0, and removed redundant
- check for all-zero coordinates that is detected by the triangle check.
-
-Version 1.4.0beta41 [November 26, 2008]
- Fixed string vs pointer-to-string error in png_check_keyword().
- Rearranged test expressions in png_check_cHRM_fixed() to avoid internal
- overflows.
- Added PNG_NO_CHECK_cHRM conditional.
-
-Version 1.4.0beta42, 43 [December 1, 2008]
- Merge png_debug with version 1.2.34beta04.
-
-Version 1.4.0beta44 [December 6, 2008]
- Removed redundant check for key==NULL before calling png_check_keyword()
- to ensure that new_key gets initialized and removed extra warning
- (Merge with version 1.2.34beta05 -- Arvan Pritchard).
-
-Version 1.4.0beta45 [December 9, 2008]
- In png_write_png(), respect the placement of the filler bytes in an earlier
- call to png_set_filler() (Jim Barry).
-
-Version 1.4.0beta46 [December 10, 2008]
- Undid previous change and added PNG_TRANSFORM_STRIP_FILLER_BEFORE and
- PNG_TRANSFORM_STRIP_FILLER_AFTER conditionals and deprecated
- PNG_TRANSFORM_STRIP_FILLER (Jim Barry).
-
-Version 1.4.0beta47 [December 15, 2008]
- Support for dithering was disabled by default, because it has never
- been well tested and doesn't work very well. The code has not
- been removed, however, and can be enabled by building libpng with
- PNG_READ_DITHER_SUPPORTED defined.
-
-Version 1.4.0beta48 [February 14, 2009]
- Added new exported function png_calloc().
- Combined several instances of png_malloc(); png_memset() into png_calloc().
- Removed prototype for png_freeptr() that was added in libpng-1.4.0beta24
- but was never defined.
-
-Version 1.4.0beta49 [February 28, 2009]
- Added png_fileno() macro to pngconf.h, used in pngwio.c
- Corrected order of #ifdef's in png_debug definition in png.h
- Fixed bug introduced in libpng-1.4.0beta48 with the memset arguments
- for pcal_params.
- Fixed order of #ifdef directives in the png_debug defines in png.h
- (bug introduced in libpng-1.2.34/1.4.0beta29).
- Revised comments in png_set_read_fn() and png_set_write_fn().
-
-Version 1.4.0beta50 [March 18, 2009]
- Use png_calloc() instead of png_malloc() to allocate big_row_buf when
- reading an interlaced file, to avoid a possible UMR.
- Undid revision of PNG_NO_STDIO version of png_write_flush(). Users
- having trouble with fflush() can build with PNG_NO_WRITE_FLUSH defined
- or supply their own flush_fn() replacement.
- Revised libpng*.txt and png.h documentation about use of png_write_flush()
- and png_set_write_fn().
- Removed fflush() from pngtest.c.
- Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h
-
-Version 1.4.0beta51 [March 21, 2009]
- Removed new png_fileno() macro from pngconf.h .
-
-Version 1.4.0beta52 [March 27, 2009]
- Relocated png_do_chop() ahead of building gamma tables in pngrtran.c
- This avoids building 16-bit gamma tables unnecessarily.
- Removed fflush() from pngtest.c.
- Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h
- Added a section on differences between 1.0.x and 1.2.x to libpng.3/libpng.txt
-
-Version 1.4.0beta53 [April 1, 2009]
- Removed some remaining MMX macros from pngpriv.h
- Fixed potential memory leak of "new_name" in png_write_iCCP() (Ralph Giles)
-
-Version 1.4.0beta54 [April 13, 2009]
- Added "ifndef PNG_SKIP_SETJMP_CHECK" block in pngconf.h to allow
- application code writers to bypass the check for multiple inclusion
- of setjmp.h when they know that it is safe to ignore the situation.
- Eliminated internal use of setjmp() in pngread.c and pngwrite.c
- Reordered ancillary chunks in pngtest.png to be the same as what
- pngtest now produces, and made some cosmetic changes to pngtest output.
- Eliminated deprecated png_read_init_3() and png_write_init_3() functions.
-
-Version 1.4.0beta55 [April 15, 2009]
- Simplified error handling in pngread.c and pngwrite.c by putting
- the new png_read_cleanup() and png_write_cleanup() functions inline.
-
-Version 1.4.0beta56 [April 25, 2009]
- Renamed "user_chunk_data" to "my_user_chunk_data" in pngtest.c to suppress
- "shadowed declaration" warning from gcc-4.3.3.
- Renamed "gamma" to "png_gamma" in pngset.c to avoid "shadowed declaration"
- warning about a global "gamma" variable in math.h on some platforms.
-
-Version 1.4.0beta57 [May 2, 2009]
- Removed prototype for png_freeptr() that was added in libpng-1.4.0beta24
- but was never defined (again).
- Rebuilt configure scripts with autoconf-2.63 instead of 2.62
- Removed pngprefs.h and MMX from makefiles
-
-Version 1.4.0beta58 [May 14, 2009]
- Changed pngw32.def to pngwin.def in makefile.mingw (typo was introduced
- in beta57).
- Clarified usage of sig_bit versus sig_bit_p in example.c (Vincent Torri)
-
-Version 1.4.0beta59 [May 15, 2009]
- Reformated sources in libpng style (3-space intentation, comment format)
- Fixed typo in libpng docs (PNG_FILTER_AVE should be PNG_FILTER_AVG)
- Added sections about the git repository and our coding style to the
- documentation
- Relocated misplaced #endif in pngwrite.c, sCAL chunk handler.
-
-Version 1.4.0beta60 [May 19, 2009]
- Conditionally compile png_read_finish_row() which is not used by
- progressive readers.
- Added contrib/pngminim/preader to demonstrate building minimal progressive
- decoder, based on contrib/gregbook with embedded libpng and zlib.
-
-Version 1.4.0beta61 [May 20, 2009]
- In contrib/pngminim/*, renamed "makefile.std" to "makefile", since there
- is only one makefile in those directories, and revised the README files
- accordingly.
- More reformatting of comments, mostly to capitalize sentences.
-
-Version 1.4.0beta62 [June 2, 2009]
- Added "#define PNG_NO_WRITE_SWAP" to contrib/pngminim/encoder/pngusr.h
- and "define PNG_NO_READ_SWAP" to decoder/pngusr.h and preader/pngusr.h
- Reformatted several remaining "else statement" into two lines.
- Added a section to the libpng documentation about using png_get_io_ptr()
- in configure scripts to detect the presence of libpng.
-
-Version 1.4.0beta63 [June 15, 2009]
- Revised libpng*.txt and libpng.3 to mention calling png_set_IHDR()
- multiple times and to specify the sample order in the tRNS chunk,
- because the ISO PNG specification has a typo in the tRNS table.
- Changed several PNG_UNKNOWN_CHUNK_SUPPORTED to
- PNG_HANDLE_AS_UNKNOWN_SUPPORTED, to make the png_set_keep mechanism
- available for ignoring known chunks even when not saving unknown chunks.
- Adopted preference for consistent use of "#ifdef" and "#ifndef" versus
- "#if defined()" and "if !defined()" where possible.
-
-Version 1.4.0beta64 [June 24, 2009]
- Eliminated PNG_LEGACY_SUPPORTED code.
- Moved the various unknown chunk macro definitions outside of the
- PNG_READ|WRITE_ANCILLARY_CHUNK_SUPPORTED blocks.
-
-Version 1.4.0beta65 [June 26, 2009]
- Added a reference to the libpng license in each file.
-
-Version 1.4.0beta66 [June 27, 2009]
- Refer to the libpng license instead of the libpng license in each file.
-
-Version 1.4.0beta67 [July 6, 2009]
- Relocated INVERT_ALPHA within png_read_png() and png_write_png().
- Added high-level API transform PNG_TRANSFORM_GRAY_TO_RGB.
- Added an "xcode" project to the projects directory (Alam Arias).
-
-Version 1.4.0beta68 [July 19, 2009]
- Avoid some tests in filter selection in pngwutil.c
-
-Version 1.4.0beta69 [July 25, 2009]
- Simplified the new filter-selection test. This runs faster in the
- common "PNG_ALL_FILTERS" and PNG_FILTER_NONE cases.
- Removed extraneous declaration from the new call to png_read_gray_to_rgb()
- (bug introduced in libpng-1.4.0beta67).
- Fixed up xcode project (Alam Arias)
- Added a prototype for png_64bit_product() in png.c
-
-Version 1.4.0beta70 [July 27, 2009]
- Avoid a possible NULL dereference in debug build, in png_set_text_2().
- (bug introduced in libpng-0.95, discovered by Evan Rouault)
-
-Version 1.4.0beta71 [July 29, 2009]
- Rebuilt configure scripts with autoconf-2.64.
-
-Version 1.4.0beta72 [August 1, 2009]
- Replaced *.tar.lzma with *.tar.xz in distribution. Get the xz codec
- from <http://tukaani.org/xz>.
-
-Version 1.4.0beta73 [August 1, 2009]
- Reject attempt to write iCCP chunk with negative embedded profile length
- (JD Chen) (CVE-2009-5063).
-
-Version 1.4.0beta74 [August 8, 2009]
- Changed png_ptr and info_ptr member "trans" to "trans_alpha".
-
-Version 1.4.0beta75 [August 21, 2009]
- Removed an extra png_debug() recently added to png_write_find_filter().
- Fixed incorrect #ifdef in pngset.c regarding unknown chunk support.
-
-Version 1.4.0beta76 [August 22, 2009]
- Moved an incorrectly located test in png_read_row() in pngread.c
-
-Version 1.4.0beta77 [August 27, 2009]
- Removed lpXYZ.tar.bz2 (with CRLF), KNOWNBUG, libpng-x.y.z-KNOWNBUG.txt,
- and the "noconfig" files from the distribution.
- Moved CMakeLists.txt from scripts into the main libpng directory.
- Various bugfixes and improvements to CMakeLists.txt (Philip Lowman)
-
-Version 1.4.0beta78 [August 31, 2009]
- Converted all PNG_NO_* tests to PNG_*_SUPPORTED everywhere except pngconf.h
- Eliminated PNG_NO_FREE_ME and PNG_FREE_ME_SUPPORTED macros.
- Use png_malloc plus a loop instead of png_calloc() to initialize
- row_pointers in png_read_png().
-
-Version 1.4.0beta79 [September 1, 2009]
- Eliminated PNG_GLOBAL_ARRAYS and PNG_LOCAL_ARRAYS; always use local arrays.
- Eliminated PNG_CALLOC_SUPPORTED macro and always provide png_calloc().
-
-Version 1.4.0beta80 [September 17, 2009]
- Removed scripts/libpng.icc
- Changed typecast of filler from png_byte to png_uint_16 in png_set_filler().
- (Dennis Gustafsson)
- Fixed typo introduced in beta78 in pngtest.c ("#if def " should be "#ifdef ")
-
-Version 1.4.0beta81 [September 23, 2009]
- Eliminated unused PNG_FLAG_FREE_* defines from pngpriv.h
- Expanded TAB characters in pngrtran.c
- Removed PNG_CONST from all "PNG_CONST PNG_CHNK" declarations to avoid
- compiler complaints about doubly declaring things "const".
- Changed all "#if [!]defined(X)" to "if[n]def X" where possible.
- Eliminated unused png_ptr->row_buf_size
-
-Version 1.4.0beta82 [September 25, 2009]
- Moved redundant IHDR checking into new png_check_IHDR() in png.c
- and report all errors found in the IHDR data.
- Eliminated useless call to png_check_cHRM() from pngset.c
-
-Version 1.4.0beta83 [September 25, 2009]
- Revised png_check_IHDR() to eliminate bogus complaint about filter_type.
-
-Version 1.4.0beta84 [September 30, 2009]
- Fixed some inconsistent indentation in pngconf.h
- Revised png_check_IHDR() to add a test for width variable less than 32-bit.
-
-Version 1.4.0beta85 [October 1, 2009]
- Revised png_check_IHDR() again, to check info_ptr members instead of
- the contents of the returned parameters.
-
-Version 1.4.0beta86 [October 9, 2009]
- Updated the "xcode" project (Alam Arias).
- Eliminated a shadowed declaration of "pp" in png_handle_sPLT().
-
-Version 1.4.0rc01 [October 19, 2009]
- Trivial cosmetic changes.
-
-Version 1.4.0beta87 [October 30, 2009]
- Moved version 1.4.0 back into beta.
-
-Version 1.4.0beta88 [October 30, 2009]
- Revised libpng*.txt section about differences between 1.2.x and 1.4.0
- because most of the new features have now been ported back to 1.2.41
-
-Version 1.4.0beta89 [November 1, 2009]
- More bugfixes and improvements to CMakeLists.txt (Philip Lowman)
- Removed a harmless extra png_set_invert_alpha() from pngwrite.c
- Apply png_user_chunk_cache_max within png_decompress_chunk().
- Merged libpng-1.2.41.txt with libpng-1.4.0.txt where appropriate.
-
-Version 1.4.0beta90 [November 2, 2009]
- Removed all remaining WIN32_WCE #ifdefs except those involving the
- time.h "tm" structure
-
-Version 1.4.0beta91 [November 3, 2009]
- Updated scripts/pngw32.def and projects/wince/png32ce.def
- Copied projects/wince/png32ce.def to the scripts directory.
- Added scripts/makefile.wce
- Patched ltmain.sh for wince support.
- Added PNG_CONVERT_tIME_SUPPORTED macro.
-
-Version 1.4.0beta92 [November 4, 2009]
- Make inclusion of time.h in pngconf.h depend on PNG_CONVERT_tIME_SUPPORTED
- Make #define PNG_CONVERT_tIME_SUPPORTED depend on PNG_WRITE_tIME_SUPPORTED
- Revised libpng*.txt to describe differences from 1.2.40 to 1.4.0 (instead
- of differences from 1.2.41 to 1.4.0)
-
-Version 1.4.0beta93 [November 7, 2009]
- Added PNG_DEPSTRUCT, PNG_DEPRECATED, PNG_USE_RESULT, PNG_NORETURN, and
- PNG_ALLOCATED macros to detect deprecated direct access to the
- png_struct or info_struct members and other deprecated usage in
- applications (John Bowler).
- Updated scripts/makefile* to add "-DPNG_CONFIGURE_LIBPNG" to CFLAGS,
- to prevent warnings about direct access to png structs by libpng
- functions while building libpng. They need to be tested, especially
- those using compilers other than gcc.
- Updated projects/visualc6 and visualc71 with "/d PNG_CONFIGURE_LIBPNG".
- They should work but still need to be updated to remove
- references to pnggccrd.c or pngvcrd.c and ASM building.
- Added README.txt to the beos, cbuilder5, netware, and xcode projects warning
- that they need to be updated, to remove references to pnggccrd.c and
- pngvcrd.c and to depend on pngpriv.h
- Removed three direct references to read_info_ptr members in pngtest.c
- that were detected by the new PNG_DEPSTRUCT macro.
- Moved the png_debug macro definitions and the png_read_destroy(),
- png_write_destroy() and png_far_to_near() prototypes from png.h
- to pngpriv.h (John Bowler)
- Moved the synopsis lines for png_read_destroy(), png_write_destroy()
- png_debug(), png_debug1(), and png_debug2() from libpng.3 to libpngpf.3.
-
-Version 1.4.0beta94 [November 9, 2009]
- Removed the obsolete, unused pnggccrd.c and pngvcrd.c files.
- Updated CMakeLists.txt to add "-DPNG_CONFIGURE_LIBPNG" to the definitions.
- Removed dependency of pngtest.o on pngpriv.h in the makefiles.
- Only #define PNG_DEPSTRUCT, etc. in pngconf.h if not already defined.
-
-Version 1.4.0beta95 [November 10, 2009]
- Changed png_check_sig() to !png_sig_cmp() in contrib programs.
- Added -DPNG_CONFIGURE_LIBPNG to contrib/pngminm/*/makefile
- Changed png_check_sig() to !png_sig_cmp() in contrib programs.
- Corrected the png_get_IHDR() call in contrib/gregbook/readpng2.c
- Changed pngminim/*/gather.sh to stop trying to remove pnggccrd.c and pngvcrd.c
- Added dependency on pngpriv.h in contrib/pngminim/*/makefile
-
-Version 1.4.0beta96 [November 12, 2009]
- Renamed scripts/makefile.wce to scripts/makefile.cegcc
- Revised Makefile.am to use libpng.sys while building libpng.so
- so that only PNG_EXPORT functions are exported.
- Removed the deprecated png_check_sig() function/macro.
- Removed recently removed function names from scripts/*.def
- Revised pngtest.png to put chunks in the same order written by pngtest
- (evidently the same change made in libpng-1.0beta54 was lost).
- Added PNG_PRIVATE macro definition in pngconf.h for possible future use.
-
-Version 1.4.0beta97 [November 13, 2009]
- Restored pngtest.png to the libpng-1.4.0beta7 version.
- Removed projects/beos and netware.txt; no one seems to be supporting them.
- Revised Makefile.in
-
-Version 1.4.0beta98 [November 13, 2009]
- Added the "xcode" project to zip distributions,
- Fixed a typo in scripts/pngwin.def introduced in beta97.
-
-Version 1.4.0beta99 [November 14, 2009]
- Moved libpng-config.in and libpng.pc-configure.in out of the scripts
- directory, to libpng-config.in and libpng-pc.in, respectively, and
- modified Makefile.am and configure.ac accordingly. Now "configure"
- needs nothing from the "scripts" directory.
- Avoid redefining PNG_CONST in pngconf.h
-
-Version 1.4.0beta100 [November 14, 2009]
- Removed ASM builds from projects/visualc6 and projects/visualc71
- Removed scripts/makefile.nommx and makefile.vcawin32
- Revised CMakeLists.txt to account for new location of libpng-config.in
- and libpng-pc.in
- Updated INSTALL to reflect removal and relocation of files.
-
-Version 1.4.0beta101 [November 14, 2009]
- Restored the binary files (*.jpg, *.png, some project files) that were
- accidentally deleted from the zip and 7z distributions when the xcode
- project was added.
-
-Version 1.4.0beta102 [November 18, 2009]
- Added libpng-config.in and libpng-pc.in to the zip and 7z distributions.
- Fixed a typo in projects/visualc6/pngtest.dsp, introduced in beta100.
- Moved descriptions of makefiles and other scripts out of INSTALL into
- scripts/README.txt
- Updated the copyright year in scripts/pngwin.rc from 2006 to 2009.
-
-Version 1.4.0beta103 [November 21, 2009]
- Removed obsolete comments about ASM from projects/visualc71/README_zlib.txt
- Align row_buf on 16-byte boundary in memory.
- Restored the PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED guard around the call
- to png_flush() after png_write_IEND(). See 1.4.0beta32, 1.4.0beta50
- changes above and 1.2.30, 1.2.30rc01 and rc03 in 1.2.41 CHANGES. Someone
- needs this feature.
- Make the 'png_jmpbuf' macro expand to a call that records the correct
- longjmp function as well as returning a pointer to the setjmp
- jmp_buf buffer, and marked direct access to jmpbuf 'deprecated'.
- (John Bowler)
-
-Version 1.4.0beta104 [November 22, 2009]
- Removed png_longjmp_ptr from scripts/*.def and libpng.3
- Rebuilt configure scripts with autoconf-2.65
-
-Version 1.4.0beta105 [November 25, 2009]
- Use fast integer PNG_DIVIDE_BY_255() or PNG_DIVIDE_BY_65535()
- to accomplish alpha premultiplication when
- PNG_READ_COMPOSITE_NODIV_SUPPORTED is defined.
- Changed "/255" to "/255.0" in background calculations to make it clear
- that the 255 is used as a double.
-
-Version 1.4.0beta106 [November 27, 2009]
- Removed premultiplied alpha feature.
-
-Version 1.4.0beta107 [December 4, 2009]
- Updated README
- Added "#define PNG_NO_PEDANTIC_WARNINGS" in the libpng source files.
- Removed "-DPNG_CONFIGURE_LIBPNG" from the makefiles and projects.
- Revised scripts/makefile.netbsd, makefile.openbsd, and makefile.sco
- to put png.h and pngconf.h in $prefix/include, like the other scripts,
- instead of in $prefix/include/libpng. Also revised makefile.sco
- to put them in $prefix/include/libpng15 instead of in
- $prefix/include/libpng/libpng15.
-
-Version 1.4.0beta108 [December 11, 2009]
- Removed leftover "-DPNG_CONFIGURE_LIBPNG" from contrib/pngminim/*/makefile
- Relocated png_do_chop() to its original position in pngrtran.c; the
- change in version 1.2.41beta08 caused transparency to be handled wrong
- in some 16-bit datastreams (Yusaku Sugai).
-
-Version 1.4.0beta109 [December 13, 2009]
- Added "bit_depth" parameter to the private png_build_gamma_table() function.
- Pass bit_depth=8 to png_build_gamma_table() when bit_depth is 16 but the
- PNG_16_TO_8 transform has been set, to avoid unnecessary build of 16-bit
- tables.
-
-Version 1.4.0rc02 [December 20, 2009]
- Declared png_cleanup_needed "volatile" in pngread.c and pngwrite.c
-
-Version 1.4.0rc03 [December 22, 2009]
- Renamed libpng-pc.in back to libpng.pc.in and revised CMakeLists.txt
- (revising the change in 1.4.0beta99)
-
-Version 1.4.0rc04 [December 25, 2009]
- Swapped PNG_UNKNOWN_CHUNKS_SUPPORTED and PNG_HANDLE_AS_UNKNOWN_SUPPORTED
- in pngset.c to be consistent with other changes in version 1.2.38.
-
-Version 1.4.0rc05 [December 25, 2009]
- Changed "libpng-pc.in" to "libpng.pc.in" in configure.ac, configure, and
- Makefile.in to be consistent with changes in libpng-1.4.0rc03
-
-Version 1.4.0rc06 [December 29, 2009]
- Reverted the gamma_table changes from libpng-1.4.0beta109.
- Fixed some indentation errors.
-
-Version 1.4.0rc07 [January 1, 2010]
- Revised libpng*.txt and libpng.3 about 1.2.x->1.4.x differences.
- Use png_calloc() instead of png_malloc(); png_memset() in pngrutil.c
- Update copyright year to 2010.
-
-Version 1.4.0rc08 [January 2, 2010]
- Avoid deprecated references to png_ptr-io_ptr and png_ptr->error_ptr
- in pngtest.c
-
-Version 1.4.0 [January 3, 2010]
- No changes.
-
-Version 1.4.1beta01 [January 8, 2010]
- Updated CMakeLists.txt for consistent indentation and to avoid an
- unclosed if-statement warning (Philip Lowman).
- Revised Makefile.am and Makefile.in to remove references to Y2KINFO,
- KNOWNBUG, and libpng.la (Robert Schwebel).
- Revised the makefiles to install the same files and symbolic
- links as configure, except for libpng.la and libpng14.la.
- Make png_set|get_compression_buffer_size() available even when
- PNG_WRITE_SUPPORTED is not enabled.
- Revised Makefile.am and Makefile.in to simplify their maintenance.
- Revised scripts/makefile.linux to install a link to libpng14.so.14.1
-
-Version 1.4.1beta02 [January 9, 2010]
- Revised the rest of the makefiles to install a link to libpng14.so.14.1
-
-Version 1.4.1beta03 [January 10, 2010]
- Removed png_set_premultiply_alpha() from scripts/*.def
-
-Version 1.4.1rc01 [January 16, 2010]
- No changes.
-
-Version 1.4.1beta04 [January 23, 2010]
- Revised png_decompress_chunk() to improve speed and memory usage when
- decoding large chunks.
- Added png_set|get_chunk_malloc_max() functions.
-
-Version 1.4.1beta05 [January 26, 2010]
- Relocated "int k" declaration in pngtest.c to minimize its scope.
-
-Version 1.4.1beta06 [January 28, 2010]
- Revised png_decompress_chunk() to use a two-pass method suggested by
- John Bowler.
-
-Version 1.4.1beta07 [February 6, 2010]
- Folded some long lines in the source files.
- Added defineable PNG_USER_CHUNK_CACHE_MAX, PNG_USER_CHUNK_MALLOC_MAX,
- and a PNG_USER_LIMITS_SUPPORTED flag.
- Eliminated use of png_ptr->irowbytes and reused the slot in png_ptr as
- png_ptr->png_user_chunk_malloc_max.
- Revised png_push_save_buffer() to do fewer but larger png_malloc() calls.
-
-Version 1.4.1beta08 [February 6, 2010]
- Minor cleanup and updating of dates and copyright year.
-
-Version 1.5.0beta01 [February 7, 2010]
- Moved declaration of png_struct into private pngstruct.h and png_info
- into pnginfo.h
-
-Version 1.4.1beta09 and 1.5.0beta02 [February 7, 2010]
- Reverted to original png_push_save_buffer() code.
-
-Version 1.4.1beta10 and 1.5.0beta03 [February 8, 2010]
- Return allocated "old_buffer" in png_push_save_buffer() before
- calling png_error(), to avoid a potential memory leak.
- Updated configure script to use SO number 15.
-
-Version 1.5.0beta04 [February 9, 2010]
- Removed malformed "incomplete struct declaration" of png_info from png.h
-
-Version 1.5.0beta05 [February 12, 2010]
- Removed PNG_DEPSTRUCT markup in pngstruct.h and pnginfo.h, and undid the
- linewrapping that it entailed.
- Revised comments in pngstruct.h and pnginfo.h and added pointers to
- the libpng license.
- Changed PNG_INTERNAL to PNG_EXPOSE_INTERNAL_STRUCTURES
- Removed the cbuilder5 project, which has not been updated to 1.4.0.
-
-Version 1.4.1beta12 and 1.5.0beta06 [February 14, 2010]
- Fixed type declaration of png_get_chunk_malloc_max() in pngget.c (Daisuke
- Nishikawa)
-
-Version 1.5.0beta07 [omitted]
-
-Version 1.5.0beta08 [February 19, 2010]
- Changed #ifdef PNG_NO_STDIO_SUPPORTED to #ifdef PNG_NO_CONSOLE_IO_SUPPORTED
- wherever png_snprintf() is used to construct error and warning messages.
- Noted in scripts/makefile.mingw that it expects to be run under MSYS.
- Removed obsolete unused MMX-querying support from contrib/gregbook
- Added exported png_longjmp() function.
- Removed the AIX redefinition of jmpbuf in png.h
- Added -D_ALLSOURCE in configure.ac, makefile.aix, and CMakeLists.txt
- when building on AIX.
-
-Version 1.5.0beta09 [February 19, 2010]
- Removed -D_ALLSOURCE from configure.ac, makefile.aix, and CMakeLists.txt.
- Changed the name of png_ptr->jmpbuf to png_ptr->png_jmpbuf in pngstruct.h
-
-Version 1.5.0beta10 [February 25, 2010]
- Removed unused gzio.c from contrib/pngminim gather and makefile scripts
- Removed replacement error handlers from contrib/gregbook. Because of
- the new png_longjmp() function they are no longer needed.
-
-Version 1.5.0beta11 [March 6, 2010]
- Removed checking for already-included setjmp.h from pngconf.h
- Fixed inconsistent indentations and made numerous cosmetic changes.
- Revised the "SEE ALSO" style of libpng.3, libpngpf.3, and png.5
-
-Version 1.5.0beta12 [March 9, 2010]
- Moved "#include png.h" inside pngpriv.h and removed "#include png.h" from
- the source files, along with "#define PNG_EXPOSE_INTERNAL_STRUCTURES"
- and "#define PNG_NO_PEDANTIC_WARNINGS" (John Bowler).
- Created new pngdebug.h and moved debug definitions there.
-
-Version 1.5.0beta13 [March 10, 2010]
- Protect pngstruct.h, pnginfo.h, and pngdebug.h from being included twice.
- Revise the "#ifdef" blocks in png_inflate() so it will compile when neither
- PNG_USER_CHUNK_MALLOC_MAX nor PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
- is defined.
- Removed unused png_measure_compressed_chunk() from pngpriv.h and libpngpf.3
- Moved the 'config.h' support from pngconf.h to pngpriv.h
- Removed PNGAPI from the png_longjmp_ptr typedef.
- Eliminated dependence of pngtest.c on the private pngdebug.h file.
- Make all png_debug macros into *unterminated* statements or
- expressions (i.e. a trailing ';' must always be added) and correct
- the format statements in various png_debug messages.
-
-Version 1.5.0beta14 [March 14, 2010]
- Removed direct access to png_ptr->io_ptr from the Windows code in pngtest.c
- Revised Makefile.am to account for recent additions and replacements.
- Corrected CE and OS/2 DEF files (scripts/png*def) for symbols removed and
- added ordinal numbers to the Windows DEF file and corrected the duplicated
- ordinal numbers on CE symbols that are commented out.
- Added back in export symbols that can be present in the Windows build but
- are disabled by default.
- PNG_EXPORT changed to include an 'ordinal' field for DEF file generation.
- PNG_CALLBACK added to make callback definitions uniform. PNGAPI split
- into PNGCAPI (base C form), PNGAPI (exports) and PNGCBAPI (callbacks),
- and appropriate changes made to all files. Cygwin builds re-hinged to
- allow procedure call standard changes and to remove the need for the DEF
- file (fixes build on Cygwin).
- Enabled 'attribute' warnings that are relevant to library APIs and callbacks.
- Changed rules for generation of the various symbol files and added a new
- rule for a DEF file (which is also added to the distribution).
- Updated the symbol file generation to stop it adding spurious spaces
- to EOL (coming from preprocessor macro expansion). Added a facility
- to join tokens in the output and rewrite *.dfn to use this.
- Eliminated scripts/*.def in favor of libpng.def; updated projects/visualc71
- and removed scripts/makefile.cygwin.
- Made PNG_BUILD_DLL safe: it can be set whenever a DLL is being built.
- Removed the include of sys/types.h - apparently unnecessary now on the
- platforms on which it happened (all but Mac OS and RISC OS).
- Moved the Mac OS test into pngpriv.h (the only place it is used.)
-
-Version 1.5.0beta15 [March 17, 2010]
- Added symbols.chk target to Makefile.am to validate the symbols in png.h
- against the new DEF file scripts/symbols.def.
- Changed the default DEF file back to pngwin.def.
- Removed makefile.mingw.
- Eliminated PNG_NO_EXTERN and PNG_ALL_EXTERN
-
-Version 1.5.0beta16 [April 1, 2010]
- Make png_text_struct independent of PNG_iTXt_SUPPORTED, so that
- fields are initialized in all configurations. The READ/WRITE
- macros (PNG_(READ|WRITE)_iTXt_SUPPORTED) still function as
- before to disable code to actually read or write iTXt chunks
- and iTXt_SUPPORTED can be used to detect presence of either
- read or write support (but it is probably better to check for
- the one actually required - read or write.)
- Combined multiple png_warning() calls for a single error.
- Restored the macro definition of png_check_sig().
-
-Version 1.5.0beta17 [April 17, 2010]
- Added some "(long)" typecasts to printf calls in png_handle_cHRM().
- Documented the fact that png_set_dither() was disabled since libpng-1.4.0.
- Reenabled png_set_dither() but renamed it to png_set_quantize() to reflect
- more accurately what it actually does. At the same time, renamed
- the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros to
- PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS.
- Added some "(long)" typecasts to printf calls in png_handle_cHRM().
- Freeze build-time only configuration in the build.
- In all prior versions of libpng most configuration options
- controlled by compiler #defines had to be repeated by the
- application code that used libpng. This patch changes this
- so that compilation options that can only be changed at build
- time are frozen in the build. Options that are compiler
- dependent (and those that are system dependent) are evaluated
- each time - pngconf.h holds these. Options that can be changed
- per-file in the application are in png.h. Frozen options are
- in the new installed header file pnglibconf.h (John Bowler)
- Removed the xcode project because it has not been updated to work
- with libpng-1.5.0.
- Removed the ability to include optional pngusr.h
-
-Version 1.5.0beta18 [April 17, 2010]
- Restored the ability to include optional pngusr.h
- Moved replacements for png_error() and png_warning() from the
- contrib/pngminim project to pngerror.c, for use when warnings or
- errors are disabled via PNG_NO_WARN or PNG_NO_ERROR_TEXT, to avoid
- storing unneeded error/warning text.
- Updated contrib/pngminim project to work with the new pnglibconf.h
- Added some PNG_NO_* defines to contrib/pngminim/*/pngusr.h to save space.
-
-Version 1.5.0beta19 [April 24, 2010]
- Added PNG_{READ,WRITE}_INT_FUNCTIONS_SUPPORTED. This allows the functions
- to read and write ints to be disabled independently of PNG_USE_READ_MACROS,
- which allows libpng to be built with the functions even though the default
- is to use the macros - this allows applications to choose at app build
- time whether or not to use macros (previously impossible because the
- functions weren't in the default build.)
- Changed Windows calling convention back to __cdecl for API functions.
- For Windows/x86 platforms only:
- __stdcall is no longer needed for Visual Basic, so libpng-1.5.0 uses
- __cdecl throughout (both API functions and callbacks) on Windows/x86
- platforms.
- Replaced visualc6 and visualc71 projects with new vstudio project
- Relaxed the overly-restrictive permissions of some files.
-
-Version 1.5.0beta20 [April 24, 2010]
- Relaxed more overly-restrictive permissions of some files.
-
-Version 1.5.0beta21 [April 27, 2010]
- Removed some unwanted binary bytes and changed CRLF to NEWLINE in the new
- vstudio project files, and some trivial editing of some files in the
- scripts directory.
- Set PNG_NO_READ_BGR, PNG_NO_IO_STATE, and PNG_NO_TIME_RFC1123 in
- contrib/pngminim/decoder/pngusr.h to make a smaller decoder application.
-
-Version 1.5.0beta22 [April 28, 2010]
- Fixed dependencies of GET_INT_32 - it does not require READ_INT_FUNCTIONS
- because it has a macro equivalent.
- Improved the options.awk script; added an "everything off" option.
- Revised contrib/pngminim to use the "everything off" option in pngusr.dfa.
-
-Version 1.5.0beta23 [April 29, 2010]
- Corrected PNG_REMOVED macro to take five arguments.
- The macro was documented with two arguments (name,ordinal), however
- the symbol checking .dfn files assumed five arguments. The five
- argument form seems more useful so it is changed to that.
- Corrected PNG_UNKNOWN_CHUNKS_SUPPORTED to PNG_HANDLE_AS_UNKNOWN_SUPPORTED
- in gregbook/readpng2.c
- Corrected protection of png_get_user_transform_ptr. The API declaration in
- png.h is removed if both READ and WRITE USER_TRANSFORM are turned off
- but was left defined in pngtrans.c
- Added logunsupported=1 to cause pnglibconf.h to document disabled options.
- This makes the installed pnglibconf.h more readable but causes no
- other change. The intention is that users of libpng will find it
- easier to understand if an API they need is missing.
- Include png_reset_zstream() in png.c only when PNG_READ_SUPPORTED is defined.
- Removed dummy_inflate.c from contrib/pngminim/encoder
- Removed contrib/pngminim/*/gather.sh; gathering is now done in the makefile.
-
-Version 1.5.0beta24 [May 7, 2010]
- Use bitwise "&" instead of arithmetic mod in pngrutil.c calculation of the
- offset of the png_ptr->rowbuf pointer into png_ptr->big_row_buf.
- Added more blank lines for readability.
-
-Version 1.5.0beta25 [June 18, 2010]
- In pngpread.c: png_push_have_row() add check for new_row > height
- Removed the now-redundant check for out-of-bounds new_row from example.c
-
-Version 1.5.0beta26 [June 18, 2010]
- In pngpread.c: png_push_process_row() add check for too many rows.
-
-Version 1.5.0beta27 [June 18, 2010]
- Removed the check added in beta25 as it is now redundant.
-
-Version 1.5.0beta28 [June 20, 2010]
- Rewrote png_process_IDAT_data to consistently treat extra data as warnings
- and handle end conditions more cleanly.
- Removed the new (beta26) check in png_push_process_row().
-
-Version 1.5.0beta29 [June 21, 2010]
- Revised scripts/options.awk to work on Sunos (but still doesn't work)
- Added comment to options.awk and contrib/pngminim/*/makefile to try nawk.
-
-Version 1.5.0beta30 [June 22, 2010]
- Stop memory leak when reading a malformed sCAL chunk.
-
-Version 1.5.0beta31 [June 26, 2010]
- Revised pngpread.c patch of beta28 to avoid an endless loop.
- Removed some trailing blanks.
-
-Version 1.5.0beta32 [June 26, 2010]
- Removed leftover scripts/options.patch and scripts/options.rej
-
-Version 1.5.0beta33 [July 6, 3010]
- Made FIXED and FLOATING options consistent in the APIs they enable and
- disable. Corrected scripts/options.awk to handle both command line
- options and options specified in the .dfa files.
- Changed char *msg to PNG_CONST char *msg in pngrutil.c
- Make png_set_sRGB_gAMA_and_cHRM set values using either the fixed or
- floating point APIs, but not both.
- Reversed patch to remove error handler when the jmp_buf is stored in the
- main program structure, not the png_struct.
- The error handler is needed because the default handler in libpng will
- always use the jmp_buf in the library control structure; this is never
- set. The gregbook code is a useful example because, even though it
- uses setjmp/longjmp, it shows how error handling can be implemented
- using control mechanisms not directly supported by libpng. The
- technique will work correctly with mechanisms such as Microsoft
- Structure Exceptions or C++ exceptions (compiler willing - note that gcc
- does not by default support interworking of C and C++ error handling.)
- Reverted changes to call png_longjmp in contrib/gregbook where it is not
- appropriate. If mainprog->jmpbuf is used by setjmp, then png_longjmp
- cannot be used.
- Changed "extern PNG_EXPORT" to "PNG_EXPORT" in png.h (Jan Nijtmans)
- Changed "extern" to "PNG_EXTERN" in pngpriv.h (except for the 'extern "C" {')
-
-Version 1.5.0beta34 [July 12, 2010]
- Put #ifndef PNG_EXTERN, #endif around the define PNG_EXTERN in pngpriv.h
-
-Version 1.5.0beta35 [July 24, 2010]
- Removed some newly-added TAB characters.
- Added -DNO_PNG_SNPRINTF to CFLAGS in scripts/makefile.dj2
- Moved the definition of png_snprintf() outside of the enclosing
- #ifdef blocks in pngconf.h
-
-Version 1.5.0beta36 [July 29, 2010]
- Patches by John Bowler:
- Fixed point APIs are now supported throughout (no missing APIs).
- Internal fixed point arithmetic support exists for all internal floating
- point operations.
- sCAL validates the floating point strings it is passed.
- Safe, albeit rudimentary, Watcom support is provided by PNG_API_RULE==2
- Two new APIs exist to get the number of passes without turning on the
- PNG_INTERLACE transform and to get the number of rows in the current
- pass.
- A new test program, pngvalid.c, validates the gamma code.
- Errors in the 16-bit gamma correction (overflows) have been corrected.
- cHRM chunk testing is done consistently (previously the floating point
- API bypassed it, because the test really didn't work on FP, now the test
- is performed on the actual values to be stored in the PNG file so it
- works in the FP case too.)
- Most floating point APIs now simply call the fixed point APIs after
- converting the values to the fixed point form used in the PNG file.
- The standard headers no longer include zlib.h, which is currently only
- required for pngstruct.h and can therefore be internal.
- Revised png_get_int_32 to undo the PNG two's complement representation of
- negative numbers.
-
-Version 1.5.0beta37 [July 30, 2010]
- Added a typecast in png_get_int_32() in png.h and pngrutil.h to avoid
- a compiler warning.
- Replaced oFFs 0,0 with oFFs -10,20 in pngtest.png
-
-Version 1.5.0beta38 [July 31, 2010]
- Implemented remaining "_fixed" functions.
- Corrected a number of recently introduced warnings mostly resulting from
- safe but uncast assignments to shorter integers. Also added a zlib
- VStudio release library project because the latest zlib Official Windows
- build does not include such a thing.
- Revised png_get_int_16() to be similar to png_get_int_32().
- Restored projects/visualc71.
-
-Version 1.5.0beta39 [August 2, 2010]
- VisualC/GCC warning fixes, VisualC build fixes
- The changes include support for function attributes in VC in addition to
- those already present in GCC - necessary because without these some
- warnings are unavoidable. Fixes include signed/unsigned fixes in
- pngvalid and checks with gcc -Wall -Wextra -Wunused.
- VC requires function attributes on function definitions as well as
- declarations, PNG_FUNCTION has been added to enable this and the
- relevant function definitions changed.
-
-Version 1.5.0beta40 [August 6, 2010]
- Correct use of _WINDOWS_ in pngconf.h
- Removed png_mem_ #defines; they are no longer used.
- Added the sRGB chunk to pngtest.png
-
-Version 1.5.0beta41 [August 11, 2010]
- Added the cHRM chunk to pngtest.png
- Don't try to use version-script with cygwin/mingw.
- Revised contrib/gregbook to work under cygwin/mingw.
-
-Version 1.5.0beta42 [August 18, 2010]
- Add .dll.a to the list of extensions to be symlinked by Makefile.am (Yaakov)
- Made all API functions that have const arguments and constant string
- literal pointers declare them (John Bowler).
-
-Version 1.5.0beta43 [August 20, 2010]
- Removed spurious tabs, shorten long lines (no source change)
- Also added scripts/chkfmt to validate the format of all the files that can
- reasonably be validated (it is suggested to run "make distclean" before
- checking, because some machine generated files have long lines.)
- Reformatted the CHANGES file to be more consistent throughout.
- Made changes to address various issues identified by GCC, mostly
- signed/unsigned and shortening problems on assignment but also a few
- difficult to optimize (for GCC) loops.
- Fixed non-GCC fixed point builds. In png.c a declaration was misplaced
- in an earlier update. Fixed to declare the auto variables at the head.
- Use cexcept.h in pngvalid.c.
-
-Version 1.5.0beta44 [August 24, 2010]
- Updated CMakeLists.txt to use CMAKE_INSTALL_LIBDIR variable; useful for
- installing libpng in /usr/lib64 (Funda Wang).
- Revised CMakeLists.txt to put the man pages in share/man/man* not man/man*
- Revised CMakeLists.txt to make symlinks instead of copies when installing.
- Changed PNG_LIB_NAME from pngNN to libpngNN in CMakeLists.txt (Philip Lowman)
- Implemented memory checks within pngvalid
- Reformatted/rearranged pngvalid.c to assist use of progressive reader.
- Check interlaced images in pngvalid
- Clarified pngusr.h comments in pnglibconf.dfa
- Simplified the pngvalid error-handling code now that cexcept.h is in place.
- Implemented progressive reader in pngvalid.c for standard tests
- Implemented progressive read in pngvalid.c gamma tests
- Turn on progressive reader in pngvalid.c by default and tidy code.
-
-Version 1.5.0beta45 [August 26, 2010]
- Added an explicit make step to projects/vstudio for pnglibconf.h
- Also corrected zlib.vcxproj into which Visual Studio had introduced
- what it calls an "authoring error". The change to make pnglibconf.h
- simply copies the file; in the future it may actually generate the
- file from scripts/pnglibconf.dfa as the other build systems do.
- Changed pngvalid to work when floating point APIs are disabled
- Renamed the prebuilt scripts/pnglibconf.h to scripts/pnglibconf.h.prebuilt
- Supply default values for PNG_USER_PRIVATEBUILD and PNG_USER_DLLFNAME_POSTFIX
- in pngpriv.h in case the user neglected to define them in their pngusr.h
-
-Version 1.5.0beta46 [August 28, 2010]
- Added new private header files to libpng_sources in CMakeLists.txt
- Added PNG_READ_16BIT, PNG_WRITE_16BIT, and PNG_16BIT options.
- Added reference to scripts/pnglibconf.h.prebuilt in the visualc71 project.
-
-Version 1.5.0beta47 [September 11, 2010]
- Fixed a number of problems with 64-bit compilation reported by Visual
- Studio 2010 (John Bowler).
-
-Version 1.5.0beta48 [October 4, 2010]
- Updated CMakeLists.txt (Philip Lowman).
- Revised autogen.sh to recognize and use $AUTOCONF, $AUTOMAKE, $AUTOHEADER,
- $AUTOPOINT, $ACLOCAL and $LIBTOOLIZE
- Fixed problem with symbols creation in Makefile.am which was assuming that
- all versions of ccp write to standard output by default (Martin Banky). The
- bug was introduced in libpng-1.2.9beta5.
- Removed unused mkinstalldirs.
-
-Version 1.5.0beta49 [October 8, 2010]
- Undid Makefile.am revision of 1.5.0beta48.
-
-Version 1.5.0beta50 [October 14, 2010]
- Revised Makefile.in to account for mkinstalldirs being removed.
- Added some "(unsigned long)" typecasts in printf statements in pngvalid.c.
- Suppressed a compiler warning in png_handle_sPLT().
- Check for out-of-range text compression mode in png_set_text().
-
-Version 1.5.0beta51 [October 15, 2010]
- Changed embedded dates to "(PENDING RELEASE) in beta releases (and future
- rc releases) to minimize the difference between releases.
-
-Version 1.5.0beta52 [October 16, 2010]
- Restored some of the embedded dates (in png.h, png.c, documentation, etc.)
-
-Version 1.5.0beta53 [October 18, 2010]
- Updated INSTALL to mention using "make maintainer-clean" and to remove
- obsolete statement about a custom ltmain.sh
- Disabled "color-tests" by default in Makefile.am so it will work with
- automake versions earlier than 1.11.1
- Use document name "libpng-manual.txt" instead of "libpng-<version>.txt"
- to simplify version differences.
- Removed obsolete remarks about setjmp handling from INSTALL.
- Revised and renamed the typedef in png.h and png.c that was designed
- to catch library and header mismatch.
-
-Version 1.5.0beta54 [November 10, 2010]
- Require 48 bytes, not 64 bytes, for big_row_buf in overflow checks.
- Used a consistent structure for the pngget.c functions.
-
-Version 1.5.0beta55 [November 21, 2010]
- Revised png_get_uint_32, png_get_int_32, png_get_uint_16 (Cosmin)
- Moved reading of file signature into png_read_sig (Cosmin)
- Fixed atomicity of chunk header serialization (Cosmin)
- Added test for io_state in pngtest.c (Cosmin)
- Added "#!/bin/sh" at the top of contrib/pngminim/*/gather.sh scripts.
- Changes to remove gcc warnings (John Bowler)
- Certain optional gcc warning flags resulted in warnings in libpng code.
- With these changes only -Wconversion and -Wcast-qual cannot be turned on.
- Changes are trivial rearrangements of code. -Wconversion is not possible
- for pngrutil.c (because of the widespread use of += et al on variables
- smaller than (int) or (unsigned int)) and -Wcast-qual is not possible
- with pngwio.c and pngwutil.c because the 'write' callback and zlib
- compression both fail to declare their input buffers with 'const'.
-
-Version 1.5.0beta56 [December 7, 2010]
- Added the private PNG_UNUSED() macro definition in pngpriv.h.
- Added some commentary about PNG_EXPORT in png.h and pngconf.h
- Revised PNG_EXPORT() macro and added PNG_EXPORTA() macro, with the
- objective of simplifying and improving the cosmetic appearance of png.h.
- Fixed some incorrect "=" macro names in pnglibconf.dfa
- Included documentation of changes in 1.5.0 from 1.4.x in libpng-manual.txt
-
-Version 1.5.0beta57 [December 9, 2010]
- Documented the pngvalid gamma error summary with additional comments and
- print statements.
- Improved missing symbol handling in checksym.awk; symbols missing in both
- the old and new files can now be optionally ignored, treated as errors
- or warnings.
- Removed references to pngvcrd.c and pnggccrd.c from the vstudio project.
- Updated "libpng14" to "libpng15" in the visualc71 project.
- Enabled the strip16 tests in pngvalid.`
- Don't display test results (except PASS/FAIL) when running "make test".
- Instead put them in pngtest-log.txt
- Added "--with-zprefix=<string>" to configure.ac
- Updated the prebuilt configuration files to autoconf version 2.68
-
-Version 1.5.0beta58 [December 19, 2010]
- Fixed interlace image handling and add test cases (John Bowler)
- Fixed the clean rule in Makefile.am to remove pngtest-log.txt
- Made minor changes to work around warnings in gcc 3.4
-
-Version 1.5.0rc01 [December 27, 2010]
- No changes.
-
-Version 1.5.0rc02 [December 27, 2010]
- Eliminated references to the scripts/*.def files in project/visualc71.
-
-Version 1.5.0rc03 [December 28, 2010]
- Eliminated scripts/*.def and revised Makefile.am accordingly
-
-Version 1.5.0rc04 [December 29, 2010]
- Fixed bug in background transformation handling in pngrtran.c (it was
- looking for the flag in png_ptr->transformations instead of in
- png_ptr->flags) (David Raymond).
-
-Version 1.5.0rc05 [December 31, 2010]
- Fixed typo in a comment in CMakeLists.txt (libpng14 => libpng15) (Cosmin)
-
-Version 1.5.0rc06 [January 4, 2011]
- Changed the new configure option "zprefix=string" to "zlib-prefix=string"
-
-Version 1.5.0rc07 [January 4, 2011]
- Updated copyright year.
-
-Version 1.5.0 [January 6, 2011]
- No changes.
-
-version 1.5.1beta01 [January 8, 2011]
- Added description of png_set_crc_action() to the manual.
- Added a note in the manual that the type of the iCCP profile was changed
- from png_charpp to png_bytepp in png_get_iCCP(). This change happened
- in version 1.5.0beta36 but is not noted in the CHANGES. Similarly,
- it was changed from png_charpp to png_const_bytepp in png_set_iCCP().
- Ensure that png_rgb_to_gray ignores palette mapped images, if libpng
- internally happens to call it with one, and fixed a failure to handle
- palette mapped images correctly. This fixes CVE-2690.
-
-Version 1.5.1beta02 [January 14, 2011]
- Fixed a bug in handling of interlaced images (bero at arklinux.org).
- Updated CMakeLists.txt (Clifford Yapp)
-
-Version 1.5.1beta03 [January 14, 2011]
- Fixed typecasting of some png_debug() statements (Cosmin)
-
-Version 1.5.1beta04 [January 16, 2011]
- Updated documentation of png_set|get_tRNS() (Thomas Klausner).
- Mentioned in the documentation that applications must #include "zlib.h"
- if they need access to anything in zlib.h, and that a number of
- macros such as png_memset() are no longer accessible by applications.
- Corrected pngvalid gamma test "sample" function to access all of the color
- samples of each pixel, instead of sampling the red channel three times.
- Prefixed variable names index, div, exp, gamma with "png_" to avoid "shadow"
- warnings, and (mistakenly) changed png_exp() to exp().
-
-Version 1.5.1beta05 [January 16, 2011]
- Changed variable names png_index, png_div, png_exp, and png_gamma to
- char_index, divisor, exp_b10, and gamma_val, respectively, and
- changed exp() back to png_exp().
-
-Version 1.5.1beta06 [January 20, 2011]
- Prevent png_push_crc_skip() from hanging while reading an unknown chunk
- or an over-large compressed zTXt chunk with the progressive reader.
- Eliminated more GCC "shadow" warnings.
- Revised png_fixed() in png.c to avoid compiler warning about reaching the
- end without returning anything.
-
-Version 1.5.1beta07 [January 22, 2011]
- In the manual, describe the png_get_IHDR() arguments in the correct order.
- Added const_png_structp and const_png_infop types, and used them in
- prototypes for most png_get_*() functions.
-
-Version 1.5.1beta08 [January 23, 2011]
- Added png_get_io_chunk_type() and deprecated png_get_io_chunk_name()
- Added synopses for the IO_STATE functions and other missing synopses
- to the manual. Removed the synopses from libpngpf.3 because they
- were out of date and no longer useful. Better information can be
- obtained by reading the prototypes and comments in pngpriv.h
- Attempted to fix cpp on Solaris with S. Studio 12 cc, fix build
- Added a make macro DFNCPP that is a CPP that will accept the tokens in
- a .dfn file and adds configure stuff to test for such a CPP. ./configure
- should fail if one is not available.
- Corrected const_png_ in png.h to png_const_ to avoid polluting the namespace.
- Added png_get_current_row_number and png_get_current_pass_number for the
- benefit of the user transform callback.
- Added png_process_data_pause and png_process_data_skip for the benefit of
- progressive readers that need to stop data processing or want to optimize
- skipping of unread data (e.g., if the reader marks a chunk to be skipped.)
-
-Version 1.5.1beta09 [January 24, 2011]
- Enhanced pngvalid, corrected an error in gray_to_rgb, corrected doc error.
- pngvalid contains tests of transforms, which tests are currently disabled
- because they are incompletely tested. gray_to_rgb was failing to expand
- the bit depth for smaller bit depth images; this seems to be a long
- standing error and resulted, apparently, in invalid output
- (CVE-2011-0408, CERT VU#643140). The documentation did not accurately
- describe what libpng really does when converting RGB to gray.
-
-Version 1.5.1beta10 [January 27, 2010]
- Fixed incorrect examples of callback prototypes in the manual, that were
- introduced in libpng-1.0.0.
- In addition the order of the png_get_uint macros with respect to the
- relevant function definitions has been reversed. This helps the
- preprocessing of the symbol files be more robust. Furthermore, the
- symbol file preprocessing now uses -DPNG_NO_USE_READ_MACROS even when
- the library may actually be built with PNG_USE_READ_MACROS; this stops
- the read macros interfering with the symbol file format.
- Made the manual, synopses, and function prototypes use the function
- argument names file_gamma, int_file_gamma, and srgb_intent consistently.
-
-Version 1.5.1beta11 [January 28, 2011]
- Changed PNG_UNUSED from "param=param;" to "{if(param){}}".
- Corrected local variable type in new API png_process_data_skip()
- The type was self-evidently incorrect but only causes problems on 64-bit
- architectures.
- Added transform tests to pngvalid and simplified the arguments.
-
-Version 1.5.1rc01 [January 29, 2011]
- No changes.
-
-Version 1.5.1rc02 [January 31, 2011]
- Added a request in the manual that applications do not use "png_" or
- "PNG_" to begin any of their own symbols.
- Changed PNG_UNUSED to "(void)param;" and updated the commentary in pngpriv.h
-
-Version 1.5.1 [February 3, 2011]
- No changes.
-
-Version 1.5.2beta01 [February 13, 2011]
- More -Wshadow fixes for older gcc compilers. Older gcc versions apparently
- check formal parameters names in function declarations (as well as
- definitions) to see if they match a name in the global namespace.
- Revised PNG_EXPORTA macro to not use an empty parameter, to accommodate the
- old VisualC++ preprocessor.
- Turned on interlace handling in png_read_png().
- Fixed gcc pedantic warnings.
- Handle longjmp in Cygwin.
- Fixed png_get_current_row_number() in the interlaced case.
- Cleaned up ALPHA flags and transformations.
- Implemented expansion to 16 bits.
-
-Version 1.5.2beta02 [February 19, 2011]
- Fixed mistake in the descriptions of user read_transform and write_transform
- function prototypes in the manual. The row_info struct is png_row_infop.
- Reverted png_get_current_row_number() to previous (1.5.2beta01) behavior.
- Corrected png_get_current_row_number documentation
- Fixed the read/write row callback documentation.
- This documents the current behavior, where the callback is called after
- every row with information pertaining to the next row.
-
-Version 1.5.2beta03 [March 3, 2011]
- Fixed scripts/makefile.vcwin32
- Updated contrib/pngsuite/README to add the word "modify".
- Define PNG_ALLOCATED to blank when _MSC_VER<1300.
-
-Version 1.5.2rc01 [March 19, 2011]
- Define remaining attributes to blank when MSC_VER<1300.
- ifdef out mask arrays in pngread.c when interlacing is not supported.
-
-Version 1.5.2rc02 [March 22, 2011]
- Added a hint to try CPP=/bin/cpp if "cpp -E" fails in scripts/pnglibconf.mak
- and in contrib/pngminim/*/makefile, eg., on SunOS 5.10, and removed "strip"
- from the makefiles.
- Fixed a bug (present since libpng-1.0.7) that makes png_handle_sPLT() fail
- to compile when PNG_NO_POINTER_INDEXING is defined (Chubanov Kirill)
-
-Version 1.5.2rc03 [March 24, 2011]
- Don't include standard header files in png.h while building the symbol table,
- to avoid cpp failure on SunOS (introduced PNG_BUILDING_SYMBOL_TABLE macro).
-
-Version 1.5.2 [March 31, 2011]
- No changes.
-
-Version 1.5.3beta01 [April 1, 2011]
- Re-initialize the zlib compressor before compressing non-IDAT chunks.
- Added API functions (png_set_text_compression_level() and four others) to
- set parameters for zlib compression of non-IDAT chunks.
-
-Version 1.5.3beta02 [April 3, 2011]
- Updated scripts/symbols.def with new API functions.
- Only compile the new zlib re-initializing code when text or iCCP is
- supported, using PNG_WRITE_COMPRESSED_TEXT_SUPPORTED macro.
- Improved the optimization of the zlib CMF byte (see libpng-1.2.6beta03).
- Optimize the zlib CMF byte in non-IDAT compressed chunks
-
-Version 1.5.3beta03 [April 16, 2011]
- Fixed gcc -ansi -pedantic compile. A strict ANSI system does not have
- snprintf, and the "__STRICT_ANSI__" detects that condition more reliably
- than __STDC__ (John Bowler).
- Removed the PNG_PTR_NORETURN attribute because it too dangerous. It tells
- the compiler that a user supplied callback (the error handler) does not
- return, yet there is no guarantee in practice that the application code
- will correctly implement the error handler because the compiler only
- issues a warning if there is a mistake (John Bowler).
- Removed the no-longer-used PNG_DEPSTRUCT macro.
- Updated the zlib version to 1.2.5 in the VStudio project.
- Fixed 64-bit builds where png_uint_32 is smaller than png_size_t in
- pngwutil.c (John Bowler).
- Fixed bug with stripping the filler or alpha channel when writing, that
- was introduced in libpng-1.5.2beta01 (bug report by Andrew Church).
-
-Version 1.5.3beta04 [April 27, 2011]
- Updated pngtest.png with the new zlib CMF optimization.
- Cleaned up conditional compilation code and of background/gamma handling
- Internal changes only except a new option to avoid compiling the
- png_build_grayscale_palette API (which is not used at all internally.)
- The main change is to move the transform tests (READ_TRANSFORMS,
- WRITE_TRANSFORMS) up one level to the caller of the APIs. This avoids
- calls to spurious functions if all transforms are disabled and slightly
- simplifies those functions. Pngvalid modified to handle this.
- A minor change is to stop the strip_16 and expand_16 interfaces from
- disabling each other; this allows the future alpha premultiplication
- code to use 16-bit intermediate values while still producing 8-bit output.
- png_do_background and png_do_gamma have been simplified to take a single
- pointer to the png_struct rather than pointers to every item required
- from the png_struct. This makes no practical difference to the internal
- code.
- A serious bug in the pngvalid internal routine 'standard_display_init' has
- been fixed - this failed to initialize the red channel and accidentally
- initialized the alpha channel twice.
- Changed png_struct jmp_buf member name from png_jmpbuf to tmp_jmpbuf to
- avoid a possible clash with the png_jmpbuf macro on some platforms.
-
-Version 1.5.3beta05 [May 6, 2011]
- Added the "_POSIX_SOURCE" feature test macro to ensure libpng sees the
- correct API. _POSIX_SOURCE is defined in pngpriv.h, pngtest.c and
- pngvalid.c to ensure that POSIX conformant systems disable non-POSIX APIs.
- Removed png_snprintf and added formatted warning messages. This change adds
- internal APIs to allow png_warning messages to have parameters without
- requiring the host OS to implement snprintf. As a side effect the
- dependency of the tIME-supporting RFC1132 code on stdio is removed and
- PNG_NO_WARNINGS does actually work now.
- Pass "" instead of '\0' to png_default_error() in png_err(). This mistake
- was introduced in libpng-1.2.20beta01. This fixes CVE-2011-2691.
- Added PNG_WRITE_OPTIMIZE_CMF_SUPPORTED macro to make the zlib "CMF" byte
- optimization configurable.
- IDAT compression failed if preceded by a compressed text chunk (bug
- introduced in libpng-1.5.3beta01-02). This was because the attempt to
- reset the zlib stream in png_write_IDAT happened after the first IDAT
- chunk had been deflated - much too late. In this change internal
- functions were added to claim/release the z_stream and, hopefully, make
- the code more robust. Also deflateEnd checking is added - previously
- libpng would ignore an error at the end of the stream.
-
-Version 1.5.3beta06 [May 8, 2011]
- Removed the -D_ALL_SOURCE from definitions for AIX in CMakeLists.txt
- Implemented premultiplied alpha support: png_set_alpha_mode API
-
-Version 1.5.3beta07 [May 11, 2011]
- Added expand_16 support to the high level interface.
- Added named value and 'flag' gamma support to png_set_gamma. Made a minor
- change from the previous (unreleased) ABI/API to hide the exact value used
- for Macs - it's not a good idea to embed this in the ABI!
- Moved macro definitions for PNG_HAVE_IHDR, PNG_HAVE_PLTE, and PNG_AFTER_IDAT
- from pngpriv.h to png.h because they must be visible to applications
- that call png_set_unknown_chunks().
- Check for up->location !PNG_AFTER_IDAT when writing unknown chunks
- before IDAT.
-
-Version 1.5.3beta08 [May 16, 2011]
- Improved "pngvalid --speed" to exclude more of pngvalid from the time.
- Documented png_set_alpha_mode(), other changes in libpng.3/libpng-manual.txt
- The cHRM chunk now sets the defaults for png_set_rgb_to_gray() (when negative
- parameters are supplied by the caller), while in the absence of cHRM
- sRGB/Rec 709 values are still used. This introduced a divide-by-zero
- bug in png_handle_cHRM().
- The bKGD chunk no longer overwrites the background value set by
- png_set_background(), allowing the latter to be used before the file
- header is read. It never performed any useful function to override
- the default anyway.
- Added memory overwrite and palette image checks to pngvalid.c
- Previously palette image code was poorly checked. Since the transformation
- code has a special palette path in most cases this was a severe weakness.
- Minor cleanup and some extra checking in pngrutil.c and pngrtran.c. When
- expanding an indexed image, always expand to RGBA if transparency is
- present.
-
-Version 1.5.3beta09 [May 17, 2011]
- Reversed earlier 1.5.3 change of transformation order; move png_expand_16
- back where it was. The change doesn't work because it requires 16-bit
- gamma tables when the code only generates 8-bit ones. This fails
- silently; the libpng code just doesn't do any gamma correction. Moving
- the tests back leaves the old, inaccurate, 8-bit gamma calculations, but
- these are clearly better than none!
-
-Version 1.5.3beta10 [May 20, 2011]
-
- png_set_background() and png_expand_16() did not work together correctly.
- This problem is present in 1.5.2; if png_set_background is called with
- need_expand false and the matching 16 bit color libpng erroneously just
- treats it as an 8-bit color because of where png_do_expand_16 is in the
- transform list. This simple fix reduces the supplied colour to 8-bits,
- so it gets smashed, but this is better than the current behavior.
- Added tests for expand16, more fixes for palette image tests to pngvalid.
- Corrects the code for palette image tests and disables attempts to
- validate palette colors.
-
-Version 1.5.3rc01 [June 3, 2011]
- No changes.
-
-Version 1.5.3rc02 [June 8, 2011]
- Fixed uninitialized memory read in png_format_buffer() (Bug report by
- Frank Busse, CVE-2011-2501, related to CVE-2004-0421).
-
-Version 1.5.3beta11 [June 11, 2011]
- Fixed png_handle_sCAL which is broken in 1.5. This fixes CVE 2011-2692.
- Added sCAL to pngtest.png
- Revised documentation about png_set_user_limits() to say that it also affects
- png writing.
- Revised handling of png_set_user_limits() so that it can increase the
- limit beyond the PNG_USER_WIDTH|HEIGHT_MAX; previously it could only
- reduce it.
- Make the 16-to-8 scaling accurate. Dividing by 256 with no rounding is
- wrong (high by one) 25% of the time. Dividing by 257 with rounding is
- wrong in 128 out of 65536 cases. Getting the right answer all the time
- without division is easy.
- Added "_SUPPORTED" to the PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION macro.
- Added projects/owatcom, an IDE project for OpenWatcom to replace
- scripts/makefile.watcom. This project works with OpenWatcom 1.9. The
- IDE autogenerates appropriate makefiles (libpng.mk) for batch processing.
- The project is configurable, unlike the Visual Studio project, so long
- as the developer has an awk.
- Changed png_set_gAMA to limit the gamma value range so that the inverse
- of the stored value cannot overflow the fixed point representation,
- and changed other things OpenWatcom warns about.
- Revised pngvalid.c to test PNG_ALPHA_MODE_SUPPORTED correctly. This allows
- pngvalid to build when ALPHA_MODE is not supported, which is required if
- it is to build on libpng 1.4.
- Removed string/memory macros that are no longer used and are not
- necessarily fully supportable, particularly png_strncpy and png_snprintf.
- Added log option to pngvalid.c and attempted to improve gamma messages.
-
-Version 1.5.3 [omitted]
- People found the presence of a beta release following an rc release
- to be confusing; therefore we bump the version to libpng-1.5.4beta01
- and there will be no libpng-1.5.3 release.
-
-Version 1.5.4beta01 [June 14, 2011]
- Made it possible to undefine PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
- to get the same (inaccurate) output as libpng-1.5.2 and earlier.
- Moved definitions of PNG_HAVE_IHDR, PNG_AFTER_IDAT, and PNG_HAVE_PLTE
- outside of an unknown-chunk block in png.h because they are also
- needed for other uses.
-
-Version 1.5.4beta02 [June 14, 2011]
- Fixed and clarified LEGACY 16-to-8 scaling code.
- Added png_set_chop_16() API, to match inaccurate results from previous
- libpng versions.
- Removed the ACCURATE and LEGACY options (they are no longer useable)
- Use the old scaling method for background if png_set_chop_16() was
- called.
- Made png_set_chop_16() API removeable by disabling PNG_CHOP_16_TO_8_SUPPORTED
-
-Version 1.5.4beta03 [June 15, 2011]
- Fixed a problem in png_do_expand_palette() exposed by optimization in
- 1.5.3beta06
- Also removed a spurious and confusing "trans" member ("trans") from png_info.
- The palette expand optimization prevented expansion to an intermediate RGBA
- form if tRNS was present but alpha was marked to be stripped; this exposed
- a check for tRNS in png_do_expand_palette() which is inconsistent with the
- code elsewhere in libpng.
- Correction to the expand_16 code; removed extra instance of
- png_set_scale_16_to_8 from pngpriv.h
-
-Version 1.5.4beta04 [June 16, 2011]
- Added a missing "#ifdef PNG_READ_BACKGROUND_SUPPORTED/#endif" in pngrtran.c
- Added PNG_TRANSFORM_CHOP_16 to the high-level read transforms.
- Made PNG_READ_16_TO_8_ACCURATE_SCALE configurable again. If this is
- not enabled, png_set_strip_16() and png_do_scale_16_to_8() aren't built.
- Revised contrib/visupng, gregbook, and pngminim to demonstrate chop_16_to_8
-
-Version 1.5.4beta05 [June 16, 2011]
- Renamed png_set_strip_16() to png_set_scale_16() and renamed
- png_set_chop_16() to png_set_strip(16) in an attempt to minimize the
- behavior changes between libpng14 and libpng15.
-
-Version 1.5.4beta06 [June 18, 2011]
- Fixed new bug that was causing both strip_16 and scale_16 to be applied.
-
-Version 1.5.4beta07 [June 19, 2011]
- Fixed pngvalid, simplified macros, added checking for 0 in sCAL.
- The ACCURATE scale macro is no longer defined in 1.5 - call the
- png_scale_16_to_8 API. Made sure that PNG_READ_16_TO_8 is still defined
- if the png_strip_16_to_8 API is present. png_check_fp_number now
- maintains some state so that positive, negative and zero values are
- identified. sCAL uses these to be strictly spec conformant.
-
-Version 1.5.4beta08 [June 23, 2011]
- Fixed pngvalid if ACCURATE_SCALE is defined.
- Updated scripts/pnglibconf.h.prebuilt.
-
-Version 1.5.4rc01 [June 30, 2011]
- Define PNG_ALLOCATED to "restrict" only if MSC_VER >= 1400.
-
-Version 1.5.4 [July 7, 2011]
- No changes.
-
-Version 1.5.5beta01 [July 13, 2011]
- Fixed some typos and made other minor changes in the manual.
- Updated contrib/pngminus/makefile.std (Samuli Souminen)
-
-Version 1.5.5beta02 [July 14, 2011]
- Revised Makefile.am and Makefile.in to look in the right directory for
- pnglibconf.h.prebuilt
-
-Version 1.5.5beta03 [July 27, 2011]
- Enabled compilation with g++ compiler. This compiler does not recognize
- the file extension, so it always compiles with C++ rules. Made minor
- changes to pngrutil.c to cast results where C++ expects it but C does not.
- Minor editing of libpng.3 and libpng-manual.txt.
-
-Version 1.5.5beta04 [July 29, 2011]
- Revised CMakeLists.txt (Clifford Yapp)
- Updated commentary about the png_rgb_to_gray() default coefficients
- in the manual and in pngrtran.c
-
-Version 1.5.5beta05 [August 17, 2011]
- Prevent unexpected API exports from non-libpng DLLs on Windows. The "_DLL"
- is removed from the test of whether a DLL is being built (this erroneously
- caused the libpng APIs to be marked as DLL exports in static builds under
- Microsoft Visual Studio). Almost all of the libpng building configuration
- is moved from pngconf.h to pngpriv.h, but PNG_DLL_EXPORT remains in
- pngconf.h, though, so that it is colocated with the import definition (it
- is no longer used anywhere in the installed headers). The VStudio project
- definitions have been cleaned up: "_USRDLL" has been removed from the
- static library builds (this was incorrect), and PNG_USE_DLL has been added
- to pngvalid to test the functionality (pngtest does not supply it,
- deliberately). The spurious "_EXPORTS" has been removed from the
- libpng build (all these errors were a result of copy/paste between project
- configurations.)
- Added new types and internal functions for CIE RGB end point handling to
- pngpriv.h (functions yet to be implemented).
-
-Version 1.5.5beta06 [August 26, 2011]
- Ensure the CMAKE_LIBRARY_OUTPUT_DIRECTORY is set in CMakeLists.txt
- (Clifford Yap)
- Fixes to rgb_to_gray and cHRM XYZ APIs (John Bowler):
- The rgb_to_gray code had errors when combined with gamma correction.
- Some pixels were treated as true grey when they weren't and such pixels
- and true grey ones were not gamma corrected (the original value of the
- red component was used instead). APIs to get and set cHRM using color
- space end points have been added and the rgb_to_gray code that defaults
- based on cHRM, and the divide-by-zero bug in png_handle_cHRM (CERT
- VU#477046, CVE-2011-3328, introduced in 1.5.4) have been corrected.
- A considerable number of tests has been added to pngvalid for the
- rgb_to_gray transform.
- Arithmetic errors in rgb_to_gray whereby the calculated gray value was
- truncated to the bit depth rather than rounded have been fixed except in
- the 8-bit non-gamma-corrected case (where consistency seems more important
- than correctness.) The code still has considerable inaccuracies in the
- 8-bit case because 8-bit linear arithmetic is used.
-
-Version 1.5.5beta07 [September 7, 2011]
- Added "$(ARCH)" option to makefile.darwin
- Added SunOS support to configure.ac and Makefile.am
- Changed png_chunk_benign_error() to png_warning() in png.c, in
- png_XYZ_from_xy_checked().
-
-Version 1.5.5beta08 [September 10, 2011]
- Fixed 64-bit compilation errors (gcc). The errors fixed relate
- to conditions where types that are 32 bits in the GCC 32-bit
- world (uLong and png_size_t) become 64 bits in the 64-bit
- world. This produces potential truncation errors which the
- compiler correctly flags.
- Relocated new HAVE_SOLARIS_LD definition in configure.ac
- Constant changes for 64-bit compatibility (removal of L suffixes). The
- 16-bit cases still use "L" as we don't have a 16-bit test system.
-
-Version 1.5.5rc01 [September 15, 2011]
- Removed "L" suffixes in pngpriv.h
-
-Version 1.5.5 [September 22, 2011]
- No changes.
-
-Version 1.5.6beta01 [September 22, 2011]
- Fixed some 64-bit type conversion warnings in pngrtran.c
- Moved row_info from png_struct to a local variable.
- The various interlace mask arrays have been made into arrays of
- bytes and made PNG_CONST and static (previously some arrays were
- marked PNG_CONST and some weren't).
- Additional checks have been added to the transform code to validate the
- pixel depths after the transforms on both read and write.
- Removed some redundant code from pngwrite.c, in png_destroy_write_struct().
- Changed chunk reading/writing code to use png_uint_32 instead of png_byte[4].
- This removes the need to allocate temporary strings for chunk names on
- the stack in the read/write code. Unknown chunk handling still uses the
- string form because this is exposed in the API.
-
-Version 1.5.6beta02 [September 26, 2011]
- Added a note in the manual the png_read_update_info() must be called only
- once with a particular info_ptr.
- Fixed a typo in the definition of the new PNG_STRING_FROM_CHUNK(s,c) macro.
-
-Version 1.5.6beta03 [September 28, 2011]
- Revised test-pngtest.sh to report FAIL when pngtest fails.
- Added "--strict" option to pngtest, to report FAIL when the failure is
- only because the resulting valid files are different.
- Revised CMakeLists.txt to work with mingw and removed some material from
- CMakeLists.txt that is no longer useful in libpng-1.5.
-
-Version 1.5.6beta04 [October 5, 2011]
- Fixed typo in Makefile.in and Makefile.am ("-M Wl" should be "-M -Wl")."
-
-Version 1.5.6beta05 [October 12, 2011]
- Speed up png_combine_row() for interlaced images. This reduces the generality
- of the code, allowing it to be optimized for Adam7 interlace. The masks
- passed to png_combine_row() are now generated internally, avoiding
- some code duplication and localizing the interlace handling somewhat.
- Align png_struct::row_buf - previously it was always unaligned, caused by
- a bug in the code that attempted to align it; the code needs to subtract
- one from the pointer to take account of the filter byte prepended to
- each row.
- Optimized png_combine_row() when rows are aligned. This gains a small
- percentage for 16-bit and 32-bit pixels in the typical case where the
- output row buffers are appropriately aligned. The optimization was not
- previously possible because the png_struct buffer was always misaligned.
- Fixed bug in png_write_chunk_header() debug print, introduced in 1.5.6beta01.
-
-Version 1.5.6beta06 [October 17, 2011]
- Removed two redundant tests for uninitialized row.
- Fixed a relatively harmless memory overwrite in compressed text writing
- with a 1 byte zlib buffer.
- Add ability to call png_read_update_info multiple times to pngvalid.c.
- Fixes for multiple calls to png_read_update_info. These fixes attend to
- most of the errors revealed in pngvalid, however doing the gamma work
- twice results in inaccuracies that can't be easily fixed. There is now
- a warning in the code if this is going to happen.
- Turned on multiple png_read_update_info in pngvalid transform tests.
- Prevent libpng from overwriting unused bits at the end of the image when
- it is not byte aligned, while reading. Prior to libpng-1.5.6 libpng would
- overwrite the partial byte at the end of each row if the row width was not
- an exact multiple of 8 bits and the image is not interlaced.
-
-Version 1.5.6beta07 [October 21, 2011]
- Made png_ptr->prev_row an aligned pointer into png_ptr->big_prev_row
- (Mans Rullgard).
-
-Version 1.5.6rc01 [October 26, 2011]
- Changed misleading "Missing PLTE before cHRM" warning to "Out of place cHRM"
-
-Version 1.5.6rc02 [October 27, 2011]
- Added LSR() macro to defend against buggy compilers that evaluate non-taken
- code branches and complain about out-of-range shifts.
-
-Version 1.5.6rc03 [October 28, 2011]
- Renamed the LSR() macro to PNG_LSR() and added PNG_LSL() macro.
- Fixed compiler warnings with Intel and MSYS compilers. The logical shift
- fix for Microsoft Visual C is required by other compilers, so this
- enables that fix for all compilers when using compile-time constants.
- Under MSYS 'byte' is a name declared in a system header file, so we
- changed the name of a local variable to avoid the warnings that result.
- Added #define PNG_ALIGN_TYPE PNG_ALIGN_NONE to contrib/pngminim/*/pngusr.h
-
-Version 1.5.6 [November 3, 2011]
- No changes.
-
-Version 1.5.7beta01 [November 4, 2011]
- Added support for ARM processor, when decoding all PNG up-filtered rows
- and any other-filtered rows with 3 or 4 bytes per pixel (Mans Rullgard).
- Fixed bug in pngvalid on early allocation failure; fixed type cast in
- pngmem.c; pngvalid would attempt to call png_error() if the allocation
- of a png_struct or png_info failed. This would probably have led to a
- crash. The pngmem.c implementation of png_malloc() included a cast
- to png_size_t which would fail on large allocations on 16-bit systems.
- Fix for the preprocessor of the Intel C compiler. The preprocessor
- splits adjacent @ signs with a space; this changes the concatenation
- token from @-@-@ to PNG_JOIN; that should work with all compiler
- preprocessors.
- Paeth filter speed improvements from work by Siarhei Siamashka. This
- changes the 'Paeth' reconstruction function to improve the GCC code
- generation on x86. The changes are only part of the suggested ones;
- just the changes that definitely improve speed and remain simple.
- The changes also slightly increase the clarity of the code.
-
-Version 1.5.7beta02 [November 11, 2011]
- Check compression_type parameter in png_get_iCCP and remove spurious
- casts. The compression_type parameter is always assigned to, so must
- be non-NULL. The cast of the profile length potentially truncated the
- value unnecessarily on a 16-bit int system, so the cast of the (byte)
- compression type to (int) is specified by ANSI-C anyway.
- Fixed FP division by zero in pngvalid.c; the 'test_pixel' code left
- the sBIT fields in the test pixel as 0, which resulted in a floating
- point division by zero which was irrelevant but causes systems where
- FP exceptions cause a crash. Added code to pngvalid to turn on FP
- exceptions if the appropriate glibc support is there to ensure this is
- tested in the future.
- Updated scripts/pnglibconf.mak and scripts/makefile.std to handle the
- new PNG_JOIN macro.
- Added versioning to pnglibconf.h comments.
- Simplified read/write API initial version; basic read/write tested on
- a variety of images, limited documentation (in the header file.)
- Installed more accurate linear to sRGB conversion tables. The slightly
- modified tables reduce the number of 16-bit values that
- convert to an off-by-one 8-bit value. The "makesRGB.c" code that was used
- to generate the tables is now in a contrib/sRGBtables sub-directory.
-
-Version 1.5.7beta03 [November 17, 2011]
- Removed PNG_CONST from the sRGB table declarations in pngpriv.h and png.c
- Added run-time detection of NEON support.
- Added contrib/libtests; includes simplified API test and timing test and
- a color conversion utility for rapid checking of failed 'pngstest' results.
- Multiple transform bug fixes plus a work-round for double gamma correction.
- libpng does not support more than one transform that requires linear data
- at once - if this is tried typically the results is double gamma
- correction. Since the simplified APIs can need rgb to gray combined with
- a compose operation it is necessary to do one of these outside the main
- libpng transform code. This check-in also contains fixes to various bugs
- in the simplified APIs themselves and to some bugs in compose and rgb to
- gray (on palette) itself.
- Fixes for C++ compilation using g++ When libpng source is compiled
- using g++. The compiler imposes C++ rules on the C source; thus it
- is desirable to make the source work with either C or C++ rules
- without throwing away useful error information. This change adds
- png_voidcast to allow C semantic (void*) cases or the corresponding
- C++ static_cast operation, as appropriate.
- Added --noexecstack to assembler file compilation. GCC does not set
- this on assembler compilation, even though it does on C compilation.
- This creates security issues if assembler code is enabled; the
- work-around is to set it by default in the flags for $(CCAS)
- Work around compilers that don't support declaration of const data. Some
- compilers fault 'extern const' data declarations (because the data is
- not initialized); this turns on const-ness only for compilers where
- this is known to work.
-
-Version 1.5.7beta04 [November 17, 2011]
- Since the gcc driver does not recognize the --noexecstack flag, we must
- use the -Wa prefix to have it passed through to the assembler.
- Also removed a duplicate setting of this flag.
- Added files that were omitted from the libpng-1.5.7beta03 zip distribution.
-
-Version 1.5.7beta05 [November 25, 2011]
- Removed "zTXt" from warning in generic chunk decompression function.
- Validate time settings passed to png_set_tIME() and png_convert_to_rfc1123()
- (Frank Busse). Note: This prevented CVE-2015-7981 from affecting
- libpng-1.5.7 and later.
- Added MINGW support to CMakeLists.txt
- Reject invalid compression flag or method when reading the iTXt chunk.
- Backed out 'simplified' API changes. The API seems too complex and there
- is a lack of consensus or enthusiasm for the proposals. The API also
- reveals significant bugs inside libpng (double gamma correction and the
- known bug of being unable to retrieve a corrected palette). It seems
- better to wait until the bugs, at least, are corrected.
- Moved pngvalid.c into contrib/libtests
- Rebuilt Makefile.in, configure, etc., with autoconf-2.68
-
-Version 1.5.7rc01 [December 1, 2011]
- Replaced an "#if" with "#ifdef" in pngrtran.c
- Revised #if PNG_DO_BC block in png.c (use #ifdef and add #else)
-
-Version 1.5.7rc02 [December 5, 2011]
- Revised project files and contrib/pngvalid/pngvalid.c to account for
- the relocation of pngvalid into contrib/libtests.
- Revised pngconf.h to use " __declspec(restrict)" only when MSC_VER >= 1400,
- as in libpng-1.5.4.
- Put CRLF line endings in the owatcom project files.
-
-Version 1.5.7rc03 [December 7, 2011]
- Updated CMakeLists.txt to account for the relocation of pngvalid.c
-
-Version 1.5.7 [December 15, 2011]
- Minor fixes to pngvalid.c for gcc 4.6.2 compatibility to remove warnings
- reported by earlier versions.
- Fixed minor memset/sizeof errors in pngvalid.c.
-
-Version 1.6.0beta01 [December 15, 2011]
- Removed machine-generated configure files from the GIT repository (they will
- continue to appear in the tarball distributions and in the libpng15 and
- earlier GIT branches).
- Restored the new 'simplified' API, which was started in libpng-1.5.7beta02
- but later deleted from libpng-1.5.7beta05.
- Added example programs for the new 'simplified' API.
- Added ANSI-C (C90) headers and require them, and take advantage of the
- change. Also fixed some of the projects/* and contrib/* files that needed
- updates for libpng16 and the move of pngvalid.c.
- With this change the required ANSI-C header files are assumed to exist: the
- implementation must provide float.h, limits.h, stdarg.h and stddef.h and
- libpng relies on limits.h and stddef.h existing and behaving as defined
- (the other two required headers aren't used). Non-ANSI systems that don't
- have stddef.h or limits.h will have to provide an appropriate fake
- containing the relevant types and #defines.
- Dropped support for 16-bit platforms. The use of FAR/far has been eliminated
- and the definition of png_alloc_size_t is now controlled by a flag so
- that 'small size_t' systems can select it if necessary. Libpng 1.6 may
- not currently work on such systems -- it seems likely that it will
- ask 'malloc' for more than 65535 bytes with any image that has a
- sufficiently large row size (rather than simply failing to read such
- images).
- New tools directory containing tools used to generate libpng code.
- Fixed race conditions in parallel make builds. With higher degrees of
- parallelism during 'make' the use of the same temporary file names such
- as 'dfn*' can result in a race where a temporary file from one arm of the
- build is deleted or overwritten in another arm. This changes the
- temporary files for suffix rules to always use $* and ensures that the
- non-suffix rules use unique file names.
-
-Version 1.6.0beta02 [December 21, 2011]
- Correct configure builds where build and source directories are separate.
- The include path of 'config.h' was erroneously made relative in pngvalid.c
- in libpng 1.5.7.
-
-Version 1.6.0beta03 [December 22, 2011]
- Start-up code size improvements, error handler flexibility. These changes
- alter how the tricky allocation of the initial png_struct and png_info
- structures are handled. png_info is now handled in pretty much the same
- way as everything else, except that the allocations handle NULL return
- silently. png_struct is changed in a similar way on allocation and on
- deallocation a 'safety' error handler is put in place (which should never
- be required). The error handler itself is changed to permit mismatches
- in the application and libpng error buffer size; however, this means a
- silent change to the API to return the jmp_buf if the size doesn't match
- the size from the libpng compilation; libpng now allocates the memory and
- this may fail. Overall these changes result in slight code size
- reductions; however, this is a reduction in code that is always executed
- so is particularly valuable. Overall on a 64-bit system the libpng DLL
- decreases in code size by 1733 bytes. pngerror.o increases in size by
- about 465 bytes because of the new functionality.
- Added png_convert_to_rfc1123_buffer() and deprecated png_convert_to_rfc1123()
- to avoid including a spurious buffer in the png_struct.
-
-Version 1.6.0beta04 [December 30, 2011]
- Regenerated configure scripts with automake-1.11.2
- Eliminated png_info_destroy(). It is now used only in png.c and only calls
- one other internal function and memset().
- Enabled png_get_sCAL_fixed() if floating point APIs are enabled. Previously
- it was disabled whenever internal fixed point arithmetic was selected,
- which meant it didn't exist even on systems where FP was available but not
- preferred.
- Added pngvalid.c compile time checks for const APIs.
- Implemented 'restrict' for png_info and png_struct. Because of the way
- libpng works both png_info and png_struct are always accessed via a
- single pointer. This means adding C99 'restrict' to the pointer gives
- the compiler some opportunity to optimize the code. This change allows
- that.
- Moved AC_MSG_CHECKING([if libraries can be versioned]) later to the proper
- location in configure.ac (Gilles Espinasse).
- Changed png_memcpy to C assignment where appropriate. Changed all those
- uses of png_memcpy that were doing a simple assignment to assignments
- (all those cases where the thing being copied is a non-array C L-value).
- Added some error checking to png_set_*() routines.
- Removed the reference to the non-exported function png_memcpy() from
- example.c.
- Fixed the Visual C 64-bit build - it requires jmp_buf to be aligned, but
- it had become misaligned.
- Revised contrib/pngminus/pnm2png.c to avoid warnings when png_uint_32
- and unsigned long are of different sizes.
-
-Version 1.6.0beta05 [January 15, 2012]
- Updated manual with description of the simplified API (copied from png.h)
- Fix bug in pngerror.c: some long warnings were being improperly truncated
- (CVE-2011-3464, bug introduced in libpng-1.5.3beta05).
-
-Version 1.6.0beta06 [January 24, 2012]
- Added palette support to the simplified APIs. This commit
- changes some of the macro definitions in png.h, app code
- may need corresponding changes.
- Increased the formatted warning buffer to 192 bytes.
- Added color-map support to simplified API. This is an initial version for
- review; the documentation has not yet been updated.
- Fixed Min/GW uninstall to remove libpng.dll.a
-
-Version 1.6.0beta07 [January 28, 2012]
- Eliminated Intel icc/icl compiler warnings. The Intel (GCC derived)
- compiler issues slightly different warnings from those issued by the
- current vesions of GCC. This eliminates those warnings by
- adding/removing casts and small code rewrites.
- Updated configure.ac from autoupdate: added --enable-werror option.
- Also some layout regularization and removal of introduced tab characters
- (replaced with 3-character indentation). Obsolete macros identified by
- autoupdate have been removed; the replacements are all in 2.59 so
- the pre-req hasn't been changed. --enable-werror checks for support
- for -Werror (or the given argument) in the compiler. This mimics the
- gcc configure option by allowing -Werror to be turned on safely; without
- the option the tests written in configure itself fail compilation because
- they cause compiler warnings.
- Rewrote autogen.sh to run autoreconf instead of running tools one-by-one.
- Conditionalize the install rules for MINGW and CYGWIN in CMakeLists.txt and
- set CMAKE_LIBRARY_OUTPUT_DIRECTORY to "lib" on all platforms (C. Yapp).
- Freeze libtool files in the 'scripts' directory. This version of autogen.sh
- attempts to dissuade people from running it when it is not, or should not,
- be necessary. In fact, autogen.sh does not work when run in a libpng
- directory extracted from a tar distribution anymore. You must run it in
- a GIT clone instead.
- Added two images to contrib/pngsuite (1-bit and 2-bit transparent grayscale),
- and renamed three whose names were inconsistent with those in
- pngsuite/README.txt.
-
-Version 1.6.0beta08 [February 1, 2012]
- Fixed Image::colormap misalignment in pngstest.c
- Check libtool/libtoolize version number (2.4.2) in configure.ac
- Divide test-pngstest.sh into separate pngstest runs for basic and
- transparent images.
- Moved automake options to AM_INIT_AUTOMAKE in configure.ac
- Added color-tests, silent-rules (Not yet implemented in Makefile.am) and
- version checking to configure.ac
- Improved pngstest speed by not doing redundant tests and add const to
- the background parameter of png_image_finish_read. The --background
- option is now done automagically only when required, so that commandline
- option no longer exists.
- Cleaned up pngpriv.h to consistently declare all functions and data.
- Also eliminated PNG_CONST_DATA, which is apparently not needed but we
- can't be sure until it is gone.
- Added symbol prefixing that allows all the libpng external symbols
- to be prefixed (suggested by Reuben Hawkins).
- Updated "ftbb*.png" list in the owatcom and vstudio projects.
- Fixed 'prefix' builds on clean systems. The generation of pngprefix.h
- should not require itself.
- Updated INSTALL to explain that autogen.sh must be run in a GIT clone,
- not in a libpng directory extracted from a tar distribution.
-
-Version 1.6.0beta09 [February 1, 2012]
- Reverted the prebuilt configure files to libpng-1.6.0beta05 condition.
-
-Version 1.6.0beta10 [February 3, 2012]
- Added Z_SOLO for zlib-1.2.6+ and correct pngstest tests
- Updated list of test images in CMakeLists.txt
- Updated the prebuilt configure files to current condition.
- Revised INSTALL information about autogen.sh; it works in tar distributions.
-
-Version 1.6.0beta11 [February 16, 2012]
- Fix character count in pngstest command in projects/owatcom/pngstest.tgt
- Revised test-pngstest.sh to report PASS/FAIL for each image.
- Updated documentation about the simplified API.
- Corrected estimate of error in libpng png_set_rgb_to_gray API. The API is
- extremely inaccurate for sRGB conversions because it uses an 8-bit
- intermediate linear value and it does not use the sRGB transform, so it
- suffers from the known instability in gamma transforms for values close
- to 0 (see Poynton). The net result is that the calculation has a maximum
- error of 14.99/255; 0.5/255^(1/2.2). pngstest now uses 15 for the
- permitted 8-bit error. This may still not be enough because of arithmetic
- error.
- Removed some unused arrays (with #ifdef) from png_read_push_finish_row().
- Fixed a memory overwrite bug in simplified read of RGB PNG with
- non-linear gamma Also bugs in the error checking in pngread.c and changed
- quite a lot of the checks in pngstest.c to be correct; either correctly
- written or not over-optimistic. The pngstest changes are insufficient to
- allow all possible RGB transforms to be passed; pngstest cmppixel needs
- to be rewritten to make it clearer which errors it allows and then changed
- to permit known inaccuracies.
- Removed tests for no-longer-used *_EMPTY_PLTE_SUPPORTED from pngstruct.h
- Fixed fixed/float API export conditionals. 1) If FIXED_POINT or
- FLOATING_POINT options were switched off, png.h ended up with lone ';'
- characters. This is not valid ANSI-C outside a function. The ';'
- characters have been moved inside the definition of PNG_FP_EXPORT and
- PNG_FIXED_EXPORT. 2) If either option was switched off, the declaration
- of the corresponding functions were completely omitted, even though some
- of them are still used internally. The result is still valid, but
- produces warnings from gcc with some warning options (including -Wall). The
- fix is to cause png.h to declare the functions with PNG_INTERNAL_FUNCTION
- when png.h is included from pngpriv.h.
- Check for invalid palette index while reading paletted PNG. When one is
- found, issue a warning and increase png_ptr->num_palette accordingly.
- Apps are responsible for checking to see if that happened.
-
-Version 1.6.0beta12 [February 18, 2012]
- Do not increase num_palette on invalid_index.
- Relocated check for invalid palette index to pngrtran.c, after unpacking
- the sub-8-bit pixels.
- Fixed CVE-2011-3026 buffer overrun bug. This bug was introduced when
- iCCP chunk support was added at libpng-1.0.6. Deal more correctly with the
- test on iCCP chunk length. Also removed spurious casts that may hide
- problems on 16-bit systems.
-
-Version 1.6.0beta13 [February 24, 2012]
- Eliminated redundant png_push_read_tEXt|zTXt|iTXt|unknown code from
- pngpread.c and use the sequential png_handle_tEXt, etc., in pngrutil.c;
- now that png_ptr->buffer is inaccessible to applications, the special
- handling is no longer useful.
- Added PNG_SAFE_LIMITS feature to pnglibconf.dfa, pngpriv.h, and new
- pngusr.dfa to reset the user limits to safe ones if PNG_SAFE_LIMITS is
- defined. To enable, use "CPPFLAGS=-DPNG_SAFE_LIMITS_SUPPORTED=1" on the
- configure command or put #define PNG_SAFE_LIMITS_SUPPORTED in
- pnglibconf.h.prebuilt and pnglibconf.h.
-
-Version 1.6.0beta14 [February 27, 2012]
- Added information about the new limits in the manual.
- Updated Makefile.in
-
-Version 1.6.0beta15 [March 2, 2012]
- Removed unused "current_text" members of png_struct and the png_free()
- of png_ptr->current_text from pngread.c
- Rewrote pngstest.c for substantial speed improvement.
- Fixed transparent pixel and 16-bit rgb tests in pngstest and removed a
- spurious check in pngwrite.c
- Added PNG_IMAGE_FLAG_FAST for the benefit of applications that store
- intermediate files, or intermediate in-memory data, while processing
- image data with the simplified API. The option makes the files larger
- but faster to write and read. pngstest now uses this by default; this
- can be disabled with the --slow option.
- Improved pngstest fine tuning of error numbers, new test file generator.
- The generator generates images that test the full range of sample values,
- allow the error numbers in pngstest to be tuned and checked. makepng
- also allows generation of images with extra chunks, although this is
- still work-in-progress.
- Added check for invalid palette index while reading.
- Fixed some bugs in ICC profile writing. The code should now accept
- all potentially valid ICC profiles and reject obviously invalid ones.
- It now uses png_error() to do so rather than casually writing a PNG
- without the necessary color data.
- Removed whitespace from the end of lines in all source files and scripts.
-
-Version 1.6.0beta16 [March 6, 2012]
- Relocated palette-index checking function from pngrutil.c to pngtrans.c
- Added palette-index checking while writing.
- Changed png_inflate() and calling routines to avoid overflow problems.
- This is an intermediate check-in that solves the immediate problems and
- introduces one performance improvement (avoiding a copy via png_ptr->zbuf.)
- Further changes will be made to make ICC profile handling more secure.
- Fixed build warnings (MSVC, GCC, GCC v3). Cygwin GCC with default options
- declares 'index' as a global, causing a warning if it is used as a local
- variable. GCC 64-bit warns about assigning a (size_t) (unsigned 64-bit)
- to an (int) (signed 32-bit). MSVC, however, warns about using the
- unary '-' operator on an unsigned value (even though it is well defined
- by ANSI-C to be ~x+1). The padding calculation was changed to use a
- different method. Removed the tests on png_ptr->pass.
- Added contrib/libtests/tarith.c to test internal arithmetic functions from
- png.c. This is a libpng maintainer program used to validate changes to the
- internal arithmetic functions.
- Made read 'inflate' handling like write 'deflate' handling. The read
- code now claims and releases png_ptr->zstream, like the write code.
- The bug whereby the progressive reader failed to release the zstream
- is now fixed, all initialization is delayed, and the code checks for
- changed parameters on deflate rather than always calling
- deflatedEnd/deflateInit.
- Validate the zTXt strings in pngvalid.
- Added code to validate the windowBits value passed to deflateInit2().
- If the call to deflateInit2() is wrong a png_warning will be issued
- (in fact this is harmless, but the PNG data produced may be sub-optimal).
-
-Version 1.6.0beta17 [March 10, 2012]
- Fixed PNG_LIBPNG_BUILD_BASE_TYPE definition.
- Reject all iCCP chunks after the first, even if the first one is invalid.
- Deflate/inflate was reworked to move common zlib calls into single
- functions [rw]util.c. A new shared keyword check routine was also added
- and the 'zbuf' is no longer allocated on progressive read. It is now
- possible to call png_inflate() incrementally. A warning is no longer
- issued if the language tag or translated keyword in the iTXt chunk
- has zero length.
- If benign errors are disabled use maximum window on ancillary inflate.
- This works round a bug introduced in 1.5.4 where compressed ancillary
- chunks could end up with a too-small windowBits value in the deflate
- header.
-
-Version 1.6.0beta18 [March 16, 2012]
- Issue a png_benign_error() instead of png_warning() about bad palette index.
- In pngtest, treat benign errors as errors if "-strict" is present.
- Fixed an off-by-one error in the palette index checking function.
- Fixed a compiler warning under Cygwin (Windows-7, 32-bit system)
- Revised example.c to put text strings in a temporary character array
- instead of directly assigning string constants to png_textp members.
- This avoids compiler warnings when -Wwrite-strings is enabled.
- Added output flushing to aid debugging under Visual Studio. Unfortunately
- this is necessary because the VS2010 output window otherwise simply loses
- the error messages on error (they weren't flushed to the window before
- the process exited, apparently!)
- Added configuration support for benign errors and changed the read
- default. Also changed some warnings in the iCCP and sRGB handling
- from to benign errors. Configuration now makes read benign
- errors warnings and write benign errors to errors by default (thus
- changing the behavior on read). The simplified API always forces
- read benign errors to warnings (regardless of the system default, unless
- this is disabled in which case the simplified API can't be built.)
-
-Version 1.6.0beta19 [March 18, 2012]
- Work around for duplicate row start calls; added warning messages.
- This turns on PNG_FLAG_DETECT_UNINITIALIZED to detect app code that
- fails to call one of the 'start' routines (not enabled in libpng-1.5
- because it is technically an API change, since it did normally work
- before.) It also makes duplicate calls to png_read_start_row (an
- internal function called at the start of the image read) benign, as
- they were before changes to use png_inflate_claim. Somehow webkit is
- causing this to happen; this is probably a mis-feature in the zlib
- changes so this commit is only a work-round.
- Removed erroneous setting of DETECT_UNINITIALIZED and added more
- checks. The code now does a png_error if an attempt is made to do the
- row initialization twice; this is an application error and it has
- serious consequences because the transform data in png_struct is
- changed by each call.
- Added application error reporting and added chunk names to read
- benign errors; also added --strict to pngstest - not enabled
- yet because a warning is produced.
- Avoid the double gamma correction warning in the simplified API.
- This allows the --strict option to pass in the pngstest checks
-
-Version 1.6.0beta20 [March 29, 2012]
- Changed chunk handler warnings into benign errors, incrementally load iCCP
- Added checksum-icc.c to contrib/tools
- Prevent PNG_EXPAND+PNG_SHIFT doing the shift twice.
- Recognize known sRGB ICC profiles while reading; prefer writing the
- iCCP profile over writing the sRGB chunk, controlled by the
- PNG_sRGB_PROFILE_CHECKS option.
- Revised png_set_text_2() to avoid potential memory corruption (fixes
- CVE-2011-3048, also known as CVE-2012-3425).
-
-Version 1.6.0beta21 [April 27, 2012]
- Revised scripts/makefile.darwin: use system zlib; remove quotes around
- architecture list; add missing ppc architecture; add architecture options
- to shared library link; don't try to create a shared lib based on missing
- RELEASE variable.
- Enable png_set_check_for_invalid_index() for both read and write.
- Removed #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED in pngpriv.h around
- declaration of png_handle_unknown().
- Added -lssp_nonshared in a comment in scripts/makefile.freebsd
- and changed deprecated NOOBJ and NOPROFILE to NO_OBJ and NO_PROFILE.
-
-Version 1.6.0beta22 [May 23, 2012]
- Removed need for -Wno-cast-align with clang. clang correctly warns on
- alignment increasing pointer casts when -Wcast-align is passed. This
- fixes the cases that clang warns about either by eliminating the
- casts from png_bytep to png_uint_16p (pngread.c), or, for pngrutil.c
- where the cast is previously verified or pngstest.c where it is OK, by
- introducing new png_aligncast macros to do the cast in a way that clang
- accepts.
-
-Version 1.6.0beta23 [June 6, 2012]
- Revised CMakeLists.txt to not attempt to make a symlink under mingw.
- Made fixes for new optimization warnings from gcc 4.7.0. The compiler
- performs an optimization which is safe; however it then warns about it.
- Changing the type of 'palette_number' in pngvalid.c removes the warning.
- Do not depend upon a GCC feature macro being available for use in generating
- the linker mapfile symbol prefix.
- Improved performance of new do_check_palette_indexes() function (only
- update the value when it actually increases, move test for whether
- the check is wanted out of the function.
-
-Version 1.6.0beta24 [June 7, 2012]
- Don't check palette indexes if num_palette is 0 (as it can be in MNG files).
-
-Version 1.6.0beta25 [June 16, 2012]
- Revised png_set_keep_unknown_chunks() so num_chunks < 0 means ignore all
- unknown chunks and all known chunks except for IHDR, PLTE, tRNS, IDAT,
- and IEND. Previously it only meant ignore all unknown chunks, the
- same as num_chunks == 0. Revised png_image_skip_unused_chunks() to
- provide a list of chunks to be processed instead of a list of chunks to
- ignore. Revised contrib/gregbook/readpng2.c accordingly.
-
-Version 1.6.0beta26 [July 10, 2012]
- Removed scripts/makefile.cegcc from the *.zip and *.7z distributions; it
- depends on configure, which is not included in those archives.
- Moved scripts/chkfmt to contrib/tools.
- Changed "a+w" to "u+w" in Makefile.in to fix CVE-2012-3386.
-
-Version 1.6.0beta27 [August 11, 2012]
- Do not compile PNG_DEPRECATED, PNG_ALLOC and PNG_PRIVATE when __GNUC__ < 3.
- Do not use __restrict when GNUC is <= 3.1
- Removed references to png_zalloc() and png_zfree() from the manual.
- Fixed configurations where floating point is completely disabled. Because
- of the changes to support symbol prefixing PNG_INTERNAL_FUNCTION declares
- floating point APIs during libpng builds even if they are completely
- disabled. This requires the png floating point types (png_double*) to be
- declared even though the functions are never actually defined. This
- change provides a dummy definition so that the declarations work, yet any
- implementation will fail to compile because of an incomplete type.
- Re-eliminated the use of strcpy() in pngtest.c. An unnecessary use of
- strcpy() was accidentally re-introduced in libpng16; this change replaces
- it with strncpy().
- Eliminated use of png_sizeof(); use sizeof() instead.
- Use a consistent style for (sizeof type) and (sizeof (array))
- Cleanup of png_set_filler(). This function does very different things on
- read and write. In libpng 1.6 the two cases can be distinguished and
- considerable code cleanup, and extra error checking, is possible. This
- makes calls on the write side that have no effect be ignored with a
- png_app_error(), which can be disabled in the app using
- png_set_benign_errors(), and removes the spurious use of usr_channels
- on the read side.
- Insist on autotools 1.12.1 for git builds because there are security issues
- with 1.12 and insisting on anything less would allow 1.12 to be used.
- Removed info_ptr->signature[8] from WRITE-only builds.
- Add some conditions for compiling png_fixed(). This is a small function
- but it requires "-lm" on some platforms.
- Cause pngtest --strict to fail on any warning from libpng (not just errors)
- and cause it not to fail at the comparison step if libpng lacks support
- for writing chunks that it reads from the input (currently only implemented
- for compressed text chunks).
- Make all three "make check" test programs work without READ or WRITE support.
- Now "make check" will succeed even if libpng is compiled with -DPNG_NO_READ
- or -DPNG_NO_WRITE. The tests performed are reduced, but the basic reading
- and writing of a PNG file is always tested by one or more of the tests.
- Consistently use strlen(), memset(), memcpy(), and memcmp() instead of the
- png_strlen(), png_memset(), png_memcpy(), and png_memcmp() macros.
- Removed the png_sizeof(), png_strlen(), png_memset(), png_memcpy(), and
- png_memcmp() macros.
- Work around gcc 3.x and Microsoft Visual Studio 2010 complaints. Both object
- to the split initialization of num_chunks.
-
-Version 1.6.0beta28 [August 29, 2012]
- Unknown handling fixes and clean up. This adds more correct option
- control of the unknown handling, corrects the pre-existing bug where
- the per-chunk 'keep' setting is ignored and makes it possible to skip
- IDAT chunks in the sequential reader (broken in earlier 1.6 versions).
- There is a new test program, test-unknown.c, which is a work in progress
- (not currently part of the test suite). Comments in the header files now
- explain how the unknown handling works.
- Allow fine grain control of unknown chunk APIs. This change allows
- png_set_keep_unknown_chunks() to be turned off if not required and causes
- both read and write to behave appropriately (on read this is only possible
- if the user callback is used to handle unknown chunks). The change
- also removes the support for storing unknown chunks in the info_struct
- if the only unknown handling enabled is via the callback, allowing libpng
- to be configured with callback reading and none of the unnecessary code.
- Corrected fix for unknown handling in pngtest. This reinstates the
- libpng handling of unknown chunks other than vpAg and sTER (including
- unsafe-to-copy chunks which were dropped before) and eliminates the
- repositioning of vpAg and sTER in pngtest.png by changing pngtest.png
- (so the chunks are where libpng would put them).
- Added "tunknown" test and corrected a logic error in png_handle_unknown()
- when SAVE support is absent. Moved the shell test scripts for
- contrib/libtests from the libpng top directory to contrib/libtests.
- png_handle_unknown() must always read or skip the chunk, if
- SAVE_UNKNOWN_CHUNKS is turned off *and* the application does not set
- a user callback an unknown chunk will not be read, leading to a read
- error, which was revealed by the "tunknown" test.
- Cleaned up and corrected ICC profile handling.
- contrib/libtests/makepng: corrected 'rgb' and 'gray' cases. profile_error
- messages could be truncated; made a correct buffer size calculation and
- adjusted pngerror.c appropriately. png_icc_check_* checking improved;
- changed the functions to receive the correct color type of the PNG on read
- or write and check that it matches the color space of the profile (despite
- what the comments said before, there is danger in assuming the app will
- cope correctly with an RGB profile on a grayscale image and, since it
- violates the PNG spec, allowing it is certain to produce inconsistent
- app behavior and might even cause app crashes.) Check that profiles
- contain the tags needed to process the PNG (tags all required by the ICC
- spec). Removed unused PNG_STATIC from pngpriv.h.
-
-Version 1.6.0beta29 [September 4, 2012]
- Fixed the simplified API example programs to add the *colormap parameter
- to several of he API and improved the error message if the version field
- is not set.
- Added contrib/examples/* to the *.zip and *.7z distributions.
- Updated simplified API synopses and description of the png_image structure
- in the manual.
- Made makepng and pngtest produce identical PNGs, add "--relaxed" option
- to pngtest. The "--relaxed" option turns off the benign errors that are
- enabled by default in pre-RC builds. makepng can now write ICC profiles
- where the length has not been extended to a multiple of 4, and pngtest
- now intercepts all libpng errors, allowing the previously-introduced
- "--strict test" on no warnings to actually work.
- Improved ICC profile handling including cHRM chunk generation and fixed
- Cygwin+MSVC build errors. The ICC profile handling now includes more
- checking. Several errors that caused rejection of the profile are now
- handled with a warning in such a way that the invalid profiles will be
- read by default in release (but not pre-RC) builds but will not be
- written by default. The easy part of handling the cHRM chunk is written,
- where the ICC profile contains the required data. The more difficult
- part plus guessing a gAMA value requires code to pass selected RGB values
- through the profile.
-
-Version 1.6.0beta30 [October 24, 2012]
- Changed ICC profile matrix/vector types to not depend on array type rules.
- By the ANSI-C standard the new types should be identical to the previous
- versions, and all known versions of gcc tested with the previous versions
- except for GCC-4.2.1 work with this version. The change makes the ANSI-C
- rule that const applied to an array of elements applies instead to the
- elements in the array moot by explicitly applying const to the base
- elements of the png_icc_matrix and png_icc_vector types. The accidental
- (harmless) 'const' previously applied to the parameters of two of the
- functions have also been removed.
- Added a work around for GCC 4.2 optimization bug.
- Marked the broken (bad white point) original HP sRGB profiles correctly and
- correct comments.
- Added -DZ_SOLO to contrib/pngminim/*/makefile to work with zlib-1.2.7
- Use /MDd for vstudio debug builds. Also added pngunkown to the vstudio
- builds, fixed build errors and corrected a minor exit code error in
- pngvalid if the 'touch' file name is invalid.
- Add updated WARNING file to projects/vstudio from libpng 1.5/vstudio
- Fixed build when using #define PNG_NO_READ_GAMMA in png_do_compose() in
- pngrtran.c (Domani Hannes).
-
-Version 1.6.0beta31 [November 1, 2012]
- Undid the erroneous change to vstudio/pngvalid build in libpng-1.6.0beta30.
- Made pngvalid so that it will build outside the libpng source tree.
- Made builds -DPNG_NO_READ_GAMMA compile (the unit tests still fail).
- Made PNG_NO_READ_GAMMA switch off interfaces that depend on READ_GAMMA.
- Prior to 1.6.0 switching off READ_GAMMA did unpredictable things to the
- interfaces that use it (specifically, png_do_background in 1.4 would
- simply display composite for grayscale images but do composition
- with the incorrect arithmetic for color ones). In 1.6 the semantic
- of -DPNG_NO_READ_GAMMA is changed to simply disable any interface that
- depends on it; this obliges people who set it to consider whether they
- really want it off if they happen to use any of the interfaces in
- question (typically most users who disable it won't).
- Fixed GUIDs in projects/vstudio. Some were duplicated or missing,
- resulting in VS2010 having to update the files.
- Removed non-working ICC profile support code that was mostly added to
- libpng-1.6.0beta29 and beta30. There was too much code for too little
- gain; implementing full ICC color correction may be desirable but is left
- up to applications.
-
-Version 1.6.0beta32 [November 25, 2012]
- Fixed an intermittent SEGV in pngstest due to an uninitialized array element.
- Added the ability for contrib/libtests/makepng.c to make a PNG with just one
- color. This is useful for debugging pngstest color inaccuracy reports.
- Fixed error checking in the simplified write API (Olaf van der Spek)
- Made png_user_version_check() ok to use with libpng version 1.10.x and later.
-
-Version 1.6.0beta33 [December 15, 2012]
- Fixed typo in png.c (PNG_SET_CHUNK_MALLOC_MAX should be PNG_CHUNK_MALLOC_MAX)
- that causes the MALLOC_MAX limit not to work (John Bowler)
- Change png_warning() to png_app_error() in pngwrite.c and comment the
- fall-through condition.
- Change png_warning() to png_app_warning() in png_write_tRNS().
- Rearranged the ARM-NEON optimizations: Isolated the machine specific code
- to the hardware subdirectory and added comments to pngrutil.c so that
- implementors of other optimizations know what to do.
- Fixed cases of unquoted DESTDIR in Makefile.am
- Rebuilt Makefile.in, etc., with autoconf-2.69 and automake-1.12.5.
-
-Version 1.6.0beta34 [December 19, 2012]
- Cleaned up whitespace in the synopsis portion of the manpage "libpng.3"
- Disassembled the version number in scripts/options.awk (necessary for
- building on SunOs).
-
-Version 1.6.0beta35 [December 23, 2012]
- Made default Zlib compression settings be configurable. This adds #defines to
- pnglibconf.h to control the defaults.
- Fixed Windows build issues, enabled ARM compilation. Various warnings issued
- by earlier versions of GCC fixed for Cygwin and Min/GW (which both use old
- GCCs.) ARM support is enabled by default in zlib.props (unsupported by
- Microsoft) and ARM compilation is made possible by deleting the check for
- x86. The test programs cannot be run because they are not signed.
-
-Version 1.6.0beta36 [January 2, 2013]
- Discontinued distributing libpng-1.x.x.tar.bz2.
- Discontinued distributing libpng-1.7.0-1.6.0-diff.txt and similar.
- Rebuilt configure with autoconf-2.69 (inadvertently not done in beta33)
- Fixed 'make distcheck' on SUN OS - libpng.so was not being removed
-
-Version 1.6.0beta37 [January 10, 2013]
- Fixed conceivable but difficult to repro overflow. Also added two test
- programs to generate and test a PNG which should have the problem.
-
-Version 1.6.0beta39 [January 19, 2013]
- Again corrected attempt at overflow detection in png_set_unknown_chunks()
- (CVE-2013-7353). Added overflow detection in png_set_sPLT() and
- png_set_text_2() (CVE-2013-7354).
-
-Version 1.6.0beta40 [January 20, 2013]
- Use consistent handling of overflows in text, sPLT and unknown png_set_* APIs
-
-Version 1.6.0rc01 [January 26, 2013]
- No changes.
-
-Version 1.6.0rc02 [February 4, 2013]
- Added png_get_palette_max() function.
-
-Version 1.6.0rc03 [February 5, 2013]
- Fixed the png_get_palette_max API.
-
-Version 1.6.0rc04 [February 7, 2013]
- Turn serial tests back on (recently turned off by autotools upgrade).
-
-Version 1.6.0rc05 [February 8, 2013]
- Update manual about png_get_palette_max().
-
-Version 1.6.0rc06 [February 9, 2013]
- Fixed missing dependency in --prefix builds The intermediate
- internal 'prefix.h' file can only be generated correctly after
- pnglibconf.h, however the dependency was not in Makefile.am. The
- symptoms are unpredictable depending on the order make chooses to
- build pngprefix.h and pnglibconf.h, often the error goes unnoticed
- because there is a system pnglibconf.h to use instead.
-
-Version 1.6.0rc07 [February 10, 2013]
- Enclosed the new png_get_palette_max in #ifdef PNG_GET_PALETTE_MAX_SUPPORTED
- block, and revised pnglibconf.h and pnglibconf.h.prebuilt accordingly.
-
-Version 1.6.0rc08 [February 10, 2013]
- Fix typo in png.h #ifdef
-
-Version 1.6.0 [February 14, 2013]
- No changes.
-
-Version 1.6.1beta01 [February 16, 2013]
- Made symbol prefixing work with the ARM neon optimizations. Also allow
- pngpriv.h to be included for preprocessor definitions only, so it can
- be used in non-C/C++ files. Back ported from libpng 1.7.
- Made sRGB check numbers consistent.
- Ported libpng 1.5 options.awk/dfn file handling to 1.6, fixed one bug.
- Removed cc -E workround, corrected png_get_palette_max API Tested on
- SUN OS cc 5.9, which demonstrates the tokenization problem previously
- avoided by using /lib/cpp. Since all .dfn output is now protected in
- double quotes unless it is to be macro substituted the fix should
- work everywhere.
- Enabled parallel tests - back ported from libpng-1.7.
- scripts/pnglibconf.dfa formatting improvements back ported from libpng17.
- Fixed a race condition in the creation of the build 'scripts' directory
- while building with a parallel make.
- Use approved/supported Android method to check for NEON, use Linux/POSIX
- 1003.1 API to check /proc/self/auxv avoiding buffer allocation and other
- library calls (ported from libpng15).
-
-Version 1.6.1beta02 [February 19, 2013]
- Use parentheses more consistently in "#if defined(MACRO)" tests.
- Folded long lines.
- Reenabled code to allow zero length PLTE chunks for MNG.
-
-Version 1.6.1beta03 [February 22, 2013]
- Fixed ALIGNED_MEMORY support.
- Added a new configure option:
- --enable-arm-neon=always will stop the run-time checks. New checks
- within arm/arm_init.c will cause the code not to be compiled unless
- __ARM_NEON__ is set. This should make it fail safe (if someone asks
- for it on then the build will fail if it can't be done.)
- Updated the INSTALL document.
-
-Version 1.6.1beta04 [February 27, 2013]
- Revised INSTALL to recommend using CPPFLAGS instead of INCLUDES.
- Revised scripts/makefile.freebsd to respect ZLIBLIB and ZLIBINC.
- Revised scripts/dfn.awk to work with the buggy MSYS awk that has trouble
- with CRLF line endings.
-
-Version 1.6.1beta05 [March 1, 2013]
- Avoid a possible memory leak in contrib/gregbook/readpng.c
-
-Version 1.6.1beta06 [March 4, 2013]
- Better documentation of unknown handling API interactions.
- Corrected Android builds and corrected libpng.vers with symbol
- prefixing. It also makes those tests compile and link on Android.
- Added an API png_set_option() to set optimization options externally,
- providing an alternative and general solution for the non-portable
- run-time tests used by the ARM Neon code, using the PNG_ARM_NEON option.
- The order of settings vs options in pnglibconf.h is reversed to allow
- settings to depend on options and options can now set (or override) the
- defaults for settings.
-
-Version 1.6.1beta07 [March 7, 2013]
- Corrected simplified API default gamma for color-mapped output, added
- a flag to change default. In 1.6.0 when the simplified API was used
- to produce color-mapped output from an input image with no gamma
- information the gamma assumed for the input could be different from
- that assumed for non-color-mapped output. In particular 16-bit depth
- input files were assumed to be sRGB encoded, whereas in the 'direct'
- case they were assumed to have linear data. This was an error. The
- fix makes the simplified API treat all input files the same way and
- adds a new flag to the png_image::flags member to allow the
- application/user to specify that 16-bit files contain sRGB data
- rather than the default linear.
- Fixed bugs in the pngpixel and makepng test programs.
-
-Version 1.6.1beta08 [March 7, 2013]
- Fixed CMakelists.txt to allow building a single variant of the library
- (Claudio Bley):
- Introduced a PNG_LIB_TARGETS variable that lists all activated library
- targets. It is an error if this variable ends up empty, ie. you have
- to build at least one library variant.
- Made the *_COPY targets only depend on library targets actually being build.
- Use PNG_LIB_TARGETS to unify a code path.
- Changed the CREATE_SYMLINK macro to expect the full path to a file as the
- first argument. When symlinking the filename component of that path is
- determined and used as the link target.
- Use copy_if_different in the CREATE_SYMLINK macro.
-
-Version 1.6.1beta09 [March 13, 2013]
- Eliminated two warnings from the Intel C compiler. The warnings are
- technically valid, although a reasonable treatment of division would
- show it to be incorrect.
-
-Version 1.6.1rc01 [March 21, 2013]
- No changes.
-
-Version 1.6.1 [March 28, 2013]
- No changes.
-
-Version 1.6.2beta01 [April 14, 2013]
- Updated documentation of 1.5.x to 1.6.x changes in iCCP chunk handling.
- Fixed incorrect warning of excess deflate data. End condition - the
- warning would be produced if the end of the deflate stream wasn't read
- in the last row. The warning is harmless.
- Corrected the test on user transform changes on read. It was in the
- png_set of the transform function, but that doesn't matter unless the
- transform function changes the rowbuf size, and that is only valid if
- transform_info is called.
- Corrected a misplaced closing bracket in contrib/libtests/pngvalid.c
- (Flavio Medeiros).
- Corrected length written to uncompressed iTXt chunks (Samuli Suominen).
- Bug was introduced in libpng-1.6.0.
-
-Version 1.6.2rc01 [April 18, 2013]
- Added contrib/tools/fixitxt.c, to repair the erroneous iTXt chunk length
- written by libpng-1.6.0 and 1.6.1.
- Disallow storing sRGB information when the sRGB is not supported.
-
-Version 1.6.2rc02 [April 18, 2013]
- Merge pngtest.c with libpng-1.7.0
-
-Version 1.6.2rc03 [April 22, 2013]
- Trivial spelling cleanup.
-
-Version 1.6.2rc04 and 1.6.2rc05 [omitted]
-
-Version 1.6.2rc06 [April 24, 2013]
- Reverted to version 1.6.2rc03. Recent changes to arm/neon support
- have been ported to libpng-1.7.0beta09 and will reappear in version
- 1.6.3beta01.
-
-Version 1.6.2 [April 25, 2013]
- No changes.
-
-Version 1.6.3beta01 [April 25, 2013]
- Revised stack marking in arm/filter_neon.S and configure.ac.
- Ensure that NEON filter stuff is completely disabled when switched 'off'.
- Previously the ARM NEON specific files were still built if the option
- was switched 'off' as opposed to being explicitly disabled.
-
-Version 1.6.3beta02 [April 26, 2013]
- Test for 'arm*' not just 'arm' in the host_cpu configure variable.
- Rebuilt the configure scripts.
-
-Version 1.6.3beta03 [April 30, 2013]
- Expanded manual paragraph about writing private chunks, particularly
- the need to call png_set_keep_unknown_chunks() when writing them.
- Avoid dereferencing NULL pointer possibly returned from
- png_create_write_struct() (Andrew Church).
-
-Version 1.6.3beta05 [May 9, 2013]
- Calculate our own zlib windowBits when decoding rather than trusting the
- CMF bytes in the PNG datastream.
- Added an option to force maximum window size for inflating, which was
- the behavior of libpng15 and earlier, via a new PNG_MAXIMUM_INFLATE_WINDOW
- option for png_set_options().
- Added png-fix-itxt and png-fix-too-far-back to the built programs and
- removed warnings from the source code and timepng that are revealed as
- a result.
- Detect wrong libpng versions linked to png-fix-too-far-back, which currently
- only works with libpng versions that can be made to reliably fail when
- the deflate data contains an out-of-window reference. This means only
- 1.6 and later.
- Fixed gnu issues: g++ needs a static_cast, gcc 4.4.7 has a broken warning
- message which it is easier to work round than ignore.
- Updated contrib/pngminus/pnm2png.c (Paul Stewart):
- Check for EOF
- Ignore "#" delimited comments in input file to pnm2png.c.
- Fixed whitespace handling
- Added a call to png_set_packing()
- Initialize dimension values so if sscanf fails at least we have known
- invalid values.
- Attempt to detect configuration issues with png-fix-too-far-back, which
- requires both the correct libpng and the correct zlib to function
- correctly.
- Check ZLIB_VERNUM for mismatches, enclose #error in quotes
- Added information in the documentation about problems with and fixes for
- the bad CRC and bad iTXt chunk situations.
-
-Version 1.6.3beta06 [May 12, 2013]
- Allow contrib/pngminus/pnm2png.c to compile without WRITE_INVERT and
- WRITE_PACK supported (writes error message that it can't read P1 or
- P4 PBM files).
- Improved png-fix-too-far-back usage message, added --suffix option.
- Revised contrib/pngminim/*/makefile to generate pnglibconf.h with the
- right zlib header files.
- Separated CPPFLAGS and CFLAGS in contrib/pngminim/*/makefile
-
-Version 1.6.3beta07 [June 8, 2013]
- Removed a redundant test in png_set_IHDR().
- Added set(CMAKE_CONFIGURATION_TYPES ...) to CMakeLists.txt (Andrew Hundt)
- Deleted set(CMAKE_BUILD_TYPE) block from CMakeLists.txt
- Enclose the prototypes for the simplified write API in
- #ifdef PNG_STDIO_SUPPORTED/#endif
- Make ARM NEON support work at compile time (not just configure time).
- This moves the test on __ARM_NEON__ into pngconf.h to avoid issues when
- using a compiler that compiles for multiple architectures at one time.
- Removed PNG_FILTER_OPTIMIZATIONS and PNG_ARM_NEON_SUPPORTED from
- pnglibconf.h, allowing more of the decisions to be made internally
- (pngpriv.h) during the compile. Without this, symbol prefixing is broken
- under certain circumstances on ARM platforms. Now only the API parts of
- the optimizations ('check' vs 'api') are exposed in the public header files
- except that the new setting PNG_ARM_NEON_OPT documents how libpng makes the
- decision about whether or not to use the optimizations.
- Protect symbol prefixing against CC/CPPFLAGS/CFLAGS usage.
- Previous iOS/Xcode fixes for the ARM NEON optimizations moved the test
- on __ARM_NEON__ from configure time to compile time. This breaks symbol
- prefixing because the definition of the special png_init_filter_functions
- call was hidden at configure time if the relevant compiler arguments are
- passed in CFLAGS as opposed to CC. This change attempts to avoid all
- the confusion that would result by declaring the init function even when
- it is not used, so that it will always get prefixed.
-
-Version 1.6.3beta08 [June 18, 2013]
- Revised libpng.3 so that "doclifter" can process it.
-
-Version 1.6.3beta09 [June 27, 2013]
- Revised example.c to illustrate use of PNG_DEFAULT_sRGB and PNG_GAMMA_MAC_18
- as parameters for png_set_gamma(). These have been available since
- libpng-1.5.4.
- Renamed contrib/tools/png-fix-too-far-back.c to pngfix.c and revised it
- to check all compressed chunks known to libpng.
-
-Version 1.6.3beta10 [July 5, 2013]
- Updated documentation to show default behavior of benign errors correctly.
- Only compile ARM code when PNG_READ_SUPPORTED is defined.
- Fixed undefined behavior in contrib/tools/pngfix.c and added new strip
- option. pngfix relied on undefined behavior and even a simple change from
- gcc to g++ caused it to fail. The new strip option 'unsafe' has been
- implemented and is the default if --max is given. Option names have
- been clarified, with --strip=transform now stripping the bKGD chunk,
- which was stripped previously with --strip=unused.
- Added all documented chunk types to pngpriv.h
- Unified pngfix.c source with libpng17.
-
-Version 1.6.3rc01 [July 11, 2013]
- No changes.
-
-Version 1.6.3 [July 18, 2013]
- Revised manual about changes in iTXt chunk handling made in libpng-1.6.0.
- Added "/* SAFE */" comments in pngrutil.c and pngrtran.c where warnings
- may be erroneously issued by code-checking applications.
-
-Version 1.6.4beta01 [August 21, 2013]
- Added information about png_set_options() to the manual.
- Delay calling png_init_filter_functions() until a row with nonzero filter
- is found.
-
-Version 1.6.4beta02 [August 30, 2013]
- Fixed inconsistent conditional compilation of png_chunk_unknown_handling()
- prototype, definition, and usage. Made it depend on
- PNG_HANDLE_AS_UNKNOWN_SUPPORTED everywhere.
-
-Version 1.6.4rc01 [September 5, 2013]
- No changes.
-
-Version 1.6.4 [September 12, 2013]
- No changes.
-
-Version 1.6.5 [September 14, 2013]
- Removed two stray lines of code from arm/arm_init.c.
-
-Version 1.6.6 [September 16, 2013]
- Removed two stray lines of code from arm/arm_init.c, again.
-
-Version 1.6.7beta01 [September 30, 2013]
- Revised unknown chunk code to correct several bugs in the NO_SAVE_/NO_WRITE
- combination
- Allow HANDLE_AS_UNKNOWN to work when other options are configured off. Also
- fixed the pngminim makefiles to work when $(MAKEFLAGS) contains stuff
- which terminates the make options (as by default in recent versions of
- Gentoo).
- Avoid up-cast warnings in pngvalid.c. On ARM the alignment requirements of
- png_modifier are greater than that of png_store and as a consequence
- compilation of pngvalid.c results in a warning about increased alignment
- requirements because of the bare cast to (png_modifier*). The code is safe,
- because the pointer is known to point to a stack allocated png_modifier,
- but this change avoids the warning.
- Fixed default behavior of ARM_NEON_API. If the ARM NEON API option was
- compiled without the CHECK option it defaulted to on, not off.
- Check user callback behavior in pngunknown.c. Previous versions compiled
- if SAVE_UNKNOWN was not available but did nothing since the callback
- was never implemented.
- Merged pngunknown.c with 1.7 version and back ported 1.7 improvements/fixes
-
-Version 1.6.7beta02 [October 12, 2013]
- Made changes for compatibility with automake 1.14:
- 1) Added the 'compile' program to the list of programs that must be cleaned
- in autogen.sh
- 2) Added 'subdir-objects' which causes .c files in sub-directories to be
- compiled such that the corresponding .o files are also in the
- sub-directory. This is because automake 1.14 warns that the
- current behavior of compiling to the top level directory may be removed
- in the future.
- 3) Updated dependencies on pnglibconf.h to match the new .o locations and
- added all the files in contrib/libtests and contrib/tools that depend
- on pnglibconf.h
- 4) Added 'BUILD_SOURCES = pnglibconf.h'; this is the automake recommended
- way of handling the dependencies of sources that are machine generated;
- unfortunately it only works if the user does 'make all' or 'make check',
- so the dependencies (3) are still required.
- Cleaned up (char*) casts of zlib messages. The latest version of the Intel C
- compiler complains about casting a string literal as (char*), so copied the
- treatment of z_const from the library code into pngfix.c
- Simplified error message code in pngunknown. The simplification has the
- useful side effect of avoiding a bogus warning generated by the latest
- version of the Intel C compiler (it objects to
- condition ? string-literal : string-literal).
- Make autogen.sh work with automake 1.13 as well as 1.14. Do this by always
- removing the 1.14 'compile' script but never checking for it.
-
-Version 1.6.7beta03 [October 19, 2013]
- Added ARMv8 support (James Yu <james.yu at linaro.org>). Added file
- arm/filter_neon_intrinsics.c; enable with -mfpu=neon.
- Revised pngvalid to generate size images with as many filters as it can
- manage, limited by the number of rows.
- Cleaned up ARM NEON compilation handling. The tests are now in pngpriv.h
- and detect the broken GCC compilers.
-
-Version 1.6.7beta04 [October 26, 2013]
- Allow clang derived from older GCC versions to use ARM intrinsics. This
- causes all clang builds that use -mfpu=neon to use the intrinsics code,
- not the assembler code. This has only been tested on iOS 7. It may be
- necessary to exclude some earlier clang versions but this seems unlikely.
- Changed NEON implementation selection mechanism. This allows assembler
- or intrinsics to be turned on at compile time during the build by defining
- PNG_ARM_NEON_IMPLEMENTATION to the correct value (2 or 1). This macro
- is undefined by default and the build type is selected in pngpriv.h.
-
-Version 1.6.7rc01 [November 2, 2013]
- No changes.
-
-Version 1.6.7rc02 [November 7, 2013]
- Fixed #include in filter_neon_intrinsics.c and ctype macros. The ctype char
- checking macros take an unsigned char argument, not a signed char.
-
-Version 1.6.7 [November 14, 2013]
- No changes.
-
-Version 1.6.8beta01 [November 24, 2013]
- Moved prototype for png_handle_unknown() in pngpriv.h outside of
- the #ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED/#endif block.
- Added "-Wall" to CFLAGS in contrib/pngminim/*/makefile
- Conditionally compile some unused functions reported by -Wall in
- pngminim.
- Fixed 'minimal' builds. Various obviously useful minimal configurations
- don't build because of missing contrib/libtests test programs and
- overly complex dependencies in scripts/pnglibconf.dfa. This change
- adds contrib/conftest/*.dfa files that can be used in automatic build
- scripts to ensure that these configurations continue to build.
- Enabled WRITE_INVERT and WRITE_PACK in contrib/pngminim/encoder.
- Fixed pngvalid 'fail' function declaration on the Intel C Compiler.
- This reverts to the previous 'static' implementation and works round
- the 'unused static function' warning by using PNG_UNUSED().
-
-Version 1.6.8beta02 [November 30, 2013]
- Removed or marked PNG_UNUSED some harmless "dead assignments" reported
- by clang scan-build.
- Changed tabs to 3 spaces in png_debug macros and changed '"%s"m'
- to '"%s" m' to improve portability among compilers.
- Changed png_free_default() to free() in pngtest.c
-
-Version 1.6.8rc01 [December 12, 2013]
- Tidied up pngfix inits and fixed pngtest no-write builds.
-
-Version 1.6.8rc02 [December 14, 2013]
- Handle zero-length PLTE chunk or NULL palette with png_error()
- instead of png_chunk_report(), which by default issues a warning
- rather than an error, leading to later reading from a NULL pointer
- (png_ptr->palette) in png_do_expand_palette(). This is CVE-2013-6954
- and VU#650142. Libpng-1.6.1 through 1.6.7 are vulnerable.
- Libpng-1.6.0 and earlier do not have this bug.
-
-Version 1.6.8 [December 19, 2013]
- No changes.
-
-Version 1.6.9beta01 [December 26, 2013]
- Bookkeeping: Moved functions around (no changes). Moved transform
- function definitions before the place where they are called so that
- they can be made static. Move the intrapixel functions and the
- grayscale palette builder out of the png?tran.c files. The latter
- isn't a transform function and is no longer used internally, and the
- former MNG specific functions are better placed in pngread/pngwrite.c
- Made transform implementation functions static. This makes the internal
- functions called by png_do_{read|write}_transformations static. On an
- x86-64 DLL build (Gentoo Linux) this reduces the size of the text
- segment of the DLL by 1208 bytes, about 0.6%. It also simplifies
- maintenance by removing the declarations from pngpriv.h and allowing
- easier changes to the internal interfaces.
- Rebuilt configure scripts with automake-1.14.1 and autoconf-2.69
- in the tar distributions.
-
-Version 1.6.9beta02 [January 1, 2014]
- Added checks for libpng 1.5 to pngvalid.c. This supports the use of
- this version of pngvalid in libpng 1.5
- Merged with pngvalid.c from libpng-1.7 changes to create a single
- pngvalid.c
- Removed #error macro from contrib/tools/pngfix.c (Thomas Klausner).
- Merged pngrio.c, pngtrans.c, pngwio.c, and pngerror.c with libpng-1.7.0
- Merged libpng-1.7.0 changes to make no-interlace configurations work
- with test programs.
- Revised pngvalid.c to support libpng 1.5, which does not support the
- PNG_MAXIMUM_INFLATE_WINDOW option, so #define it out when appropriate in
- pngvalid.c
- Allow unversioned links created on install to be disabled in configure.
- In configure builds 'make install' changes/adds links like png.h
- and libpng.a to point to the newly installed, versioned, files (e.g.
- libpng17/png.h and libpng17.a). Three new configure options and some
- rearrangement of Makefile.am allow creation of these links to be disabled.
-
-Version 1.6.9beta03 [January 10, 2014]
- Removed potentially misleading warning from png_check_IHDR().
-
-Version 1.6.9beta04 [January 20, 2014]
- Updated scripts/makefile.* to use CPPFLAGS (Cosmin).
- Added clang attribute support (Cosmin).
-
-Version 1.6.9rc01 [January 28, 2014]
- No changes.
-
-Version 1.6.9rc02 [January 30, 2014]
- Quiet an uninitialized memory warning from VC2013 in png_get_png().
-
-Version 1.6.9 [February 6, 2014]
-
-Version 1.6.10beta01 [February 9, 2014]
- Backported changes from libpng-1.7.0beta30 and beta31:
- Fixed a large number of instances where PNGCBAPI was omitted from
- function definitions.
- Added pngimage test program for png_read_png() and png_write_png()
- with two new test scripts.
- Removed dependence on !PNG_READ_EXPAND_SUPPORTED for calling
- png_set_packing() in png_read_png().
- Fixed combination of ~alpha with shift. On read invert alpha, processing
- occurred after shift processing, which causes the final values to be
- outside the range that should be produced by the shift. Reversing the
- order on read makes the two transforms work together correctly and mirrors
- the order used on write.
- Do not read invalid sBIT chunks. Previously libpng only checked sBIT
- values on write, so a malicious PNG writer could therefore cause
- the read code to return an invalid sBIT chunk, which might lead to
- application errors or crashes. Such chunks are now skipped (with
- chunk_benign_error).
- Make png_read_png() and png_write_png() prototypes in png.h depend
- upon PNG_READ_SUPPORTED and PNG_WRITE_SUPPORTED.
- Support builds with unsupported PNG_TRANSFORM_* values. All of the
- PNG_TRANSFORM_* values are always defined in png.h and, because they
- are used for both read and write in some cases, it is not reliable
- to #if out ones that are totally unsupported. This change adds error
- detection in png_read_image() and png_write_image() to do a
- png_app_error() if the app requests something that cannot be done
- and it adds corresponding code to pngimage.c to handle such options
- by not attempting to test them.
-
-Version 1.6.10beta02 [February 23, 2014]
- Moved redefines of png_error(), png_warning(), png_chunk_error(),
- and png_chunk_warning() from pngpriv.h to png.h to make them visible
- to libpng-calling applications.
- Moved OS dependent code from arm/arm_init.c, to allow the included
- implementation of the ARM NEON discovery function to be set at
- build-time and provide sample implementations from the current code in the
- contrib/arm-neon subdirectory. The __linux__ code has also been changed to
- compile and link on Android by using /proc/cpuinfo, and the old linux code
- is in contrib/arm-neon/linux-auxv.c. The new code avoids POSIX and Linux
- dependencies apart from opening /proc/cpuinfo and is C90 compliant.
- Check for info_ptr == NULL early in png_read_end() so we don't need to
- run all the png_handle_*() and depend on them to return if info_ptr == NULL.
- This improves the performance of png_read_end(png_ptr, NULL) and makes
- it more robust against future programming errors.
- Check for __has_extension before using it in pngconf.h, to
- support older Clang versions (Jeremy Sequoia).
- Treat CRC error handling with png_set_crc_action(), instead of with
- png_set_benign_errors(), which has been the case since libpng-1.6.0beta18.
- Use a user warning handler in contrib/gregbook/readpng2.c instead of default,
- so warnings will be put on stderr even if libpng has CONSOLE_IO disabled.
- Added png_ptr->process_mode = PNG_READ_IDAT_MODE in png_push_read_chunk
- after recognizing the IDAT chunk, which avoids an infinite loop while
- reading a datastream whose first IDAT chunk is of zero-length.
- This fixes CERT VU#684412 and CVE-2014-0333.
- Don't recognize known sRGB profiles as sRGB if they have been hacked,
- but don't reject them and don't issue a copyright violation warning.
-
-Version 1.6.10beta03 [February 25, 2014]
- Moved some documentation from png.h to libpng.3 and libpng-manual.txt
- Minor editing of contrib/arm-neon/README and contrib/examples/*.c
-
-Version 1.6.10rc01 [February 27, 2014]
- Fixed typos in the manual and in scripts/pnglibconf.dfa (CFLAGS -> CPPFLAGS
- and PNG_USR_CONFIG -> PNG_USER_CONFIG).
-
-Version 1.6.10rc02 [February 28, 2014]
- Removed unreachable return statement after png_chunk_error()
- in pngrutil.c
-
-Version 1.6.10rc03 [March 4, 2014]
- Un-deprecated png_data_freer().
-
-Version 1.6.10 [March 6, 2014]
- No changes.
-
-Version 1.6.11beta01 [March 17, 2014]
- Use "if (value != 0)" instead of "if (value)" consistently.
- Changed ZlibSrcDir from 1.2.5 to 1.2.8 in projects/vstudio.
- Moved configuration information from the manual to the INSTALL file.
-
-Version 1.6.11beta02 [April 6, 2014]
- Removed #if/#else/#endif from inside two pow() calls in pngvalid.c because
- they were handled improperly by Portland Group's PGI-14.1 - PGI-14.3
- when using its "__builtin_pow()" function.
- Silence 'unused parameter' build warnings (Cosmin Truta).
- $(CP) is now used alongside $(RM_F). Also, use 'copy' instead of 'cp'
- where applicable, and applied other minor makefile changes (Cosmin).
- Don't warn about invalid dimensions exceeding user limits (Cosmin).
- Allow an easy replacement of the default pre-built configuration
- header with a custom header, via the make PNGLIBCONF_H_PREBUILT
- macro (Cosmin).
-
-Version 1.6.11beta03 [April 6, 2014]
- Fixed a typo in pngrutil.c, introduced in libpng-1.5.6, that interferes
- with "blocky" expansion of sub-8-bit interlaced PNG files (Eric Huss).
- Optionally use __builtin_bswap16() in png_do_swap().
-
-Version 1.6.11beta04 [April 19, 2014]
- Made progressive reading of interlaced images consistent with the
- behavior of the sequential reader and consistent with the manual, by
- moving some code out of the PNG_READ_INTERLACING_SUPPORTED blocks. The
- row_callback now receives the proper pass number and unexpanded rows, when
- png_combine_row() isn't built or used, and png_set_interlace_handling()
- is not called.
- Allow PNG_sRGB_PROFILE_CHECKING = (-1) to mean no sRGB profile checking.
-
-Version 1.6.11beta05 [April 26, 2014]
- Do not reject ICC V2 profiles that lack padding (Kai-Uwe Behrmann).
- Relocated closing bracket of the sRGB profile test loop to avoid getting
- "Not recognizing known sRGB profile that has been edited" warning for
- ICC V2 profiles that lack the MD5 signature in the profile header.
-
-Version 1.6.11beta06 [May 19, 2014]
- Added PNG_SKIP_sRGB_CHECK_PROFILE choice for png_set_option().
-
-Version 1.6.11rc01 [May 27, 2014]
- No changes.
-
-Version 1.6.11rc02 [June 3, 2014]
- Test ZLIB_VERNUM instead of PNG_ZLIB_VERNUM in contrib/tools/pngfix.c
-
-Version 1.6.11 [June 5, 2014]
- No changes.
-
-Version 1.6.12rc01 [June 6, 2014]
- Relocated new code from 1.6.11beta06 in png.c to a point after the
- declarations (Max Stepin).
-
-Version 1.6.12rc02 [June 7, 2014]
- Changed file permissions of contrib/tools/intgamma.sh,
- test-driver, and compile from 0644 to 0755 (Cosmin).
-
-Version 1.6.12rc03 [June 8, 2014]
- Ensure "__has_attribute()" macro exists before trying to use it with
- old clang compilers (MacPorts Ticket #43939).
-
-Version 1.6.12 [June 12, 2014]
- No changes.
-
-Version 1.6.13beta01 [July 4, 2014]
- Quieted -Wsign-compare and -Wclobber compiler warnings in
- contrib/pngminus/*.c
- Added "(void) png_ptr;" where needed in contrib/gregbook to quiet
- compiler complaints about unused pointers.
- Split a long output string in contrib/gregbook/rpng2-x.c.
- Added "PNG_SET_OPTION" requirement for sRGB chunk support to pnglibconf.dfa,
- Needed for write-only support (John Bowler).
- Changed "if defined(__ARM_NEON__)" to
- "if (defined(__ARM_NEON__) || defined(__ARM_NEON))" (James Wu).
- Fixed clang no-warning builds: png_digit was defined but never used.
-
-Version 1.6.13beta02 [July 21, 2014]
- Fixed an incorrect separator ("/" should be "\") in scripts/makefile.vcwin32
- (bug report from Wolfgang S. Kechel). Bug was introduced in libpng-1.6.11.
- Also fixed makefile.bc32, makefile.bor, makefile.msc, makefile.intel, and
- makefile.tc3 similarly.
-
-Version 1.6.13beta03 [August 3, 2014]
- Removed scripts/makefile.elf. It has not worked since libpng-1.5.0beta14
- due to elimination of the PNG_FUNCTION_EXPORT and PNG_DATA_EXPORT
- definitions from pngconf.h.
- Ensure that CMakeLists.txt makes the target "lib" directory before making
- symbolic link into it (SourceForge bug report #226 by Rolf Timmermans).
-
-Version 1.6.13beta04 [August 8, 2014]
- Added opinion that the ECCN (Export Control Classification Number) for
- libpng is EAR99 to the README file.
- Eliminated use of "$<" in makefile explicit rules, when copying
- $PNGLIBCONF_H_PREBUILT. This does not work on some versions of make;
- bug introduced in libpng version 1.6.11.
-
-Version 1.6.13rc01 [August 14, 2014]
- Made "ccopts" agree with "CFLAGS" in scripts/makefile.hp* and makefile.*sunu
-
-Version 1.6.13 [August 21, 2014]
- No changes.
-
-Version 1.6.14beta01 [September 14, 2014]
- Guard usage of png_ptr->options with #ifdef PNG_SET_OPTION_SUPPORTED.
- Do not build contrib/tools/pngfix.c when PNG_SETJMP_NOT_SUPPORTED,
- to allow "make" to complete without setjmp support (bug report by
- Claudio Fontana)
- Add "#include <setjmp.h>" to contrib/tools/pngfix.c (John Bowler)
-
-Version 1.6.14beta02 [September 18, 2014]
- Use nanosleep() instead of usleep() in contrib/gregbook/rpng2-x.c
- because usleep() is deprecated.
- Define usleep() in contrib/gregbook/rpng2-x.c if not already defined
- in unistd.h and nanosleep() is not available; fixes error introduced
- in libpng-1.6.13.
- Disable floating point exception handling in pngvalid.c when
- PNG_FLOATING_ARITHMETIC is not supported (bug report by "zootus
- at users.sourceforge.net").
-
-Version 1.6.14beta03 [September 19, 2014]
- Define FE_DIVBYZERO, FE_INVALID, and FE_OVERFLOW in pngvalid.c if not
- already defined. Revert floating point exception handling in pngvalid.c
- to version 1.6.14beta01 behavior.
-
-Version 1.6.14beta04 [September 27, 2014]
- Fixed incorrect handling of the iTXt compression flag in pngrutil.c
- (bug report by Shunsaku Hirata). Bug was introduced in libpng-1.6.0.
-
-Version 1.6.14beta05 [October 1, 2014]
- Added "option READ_iCCP enables READ_COMPRESSED_TEXT" to pnglibconf.dfa
-
-Version 1.6.14beta06 [October 5, 2014]
- Removed unused "text_len" parameter from private function png_write_zTXt().
- Conditionally compile some code in png_deflate_claim(), when
- PNG_WARNINGS_SUPPORTED and PNG_ERROR_TEXT_SUPPORTED are disabled.
- Replaced repeated code in pngpread.c with PNG_PUSH_SAVE_BUFFER_IF_FULL.
- Added "chunk iTXt enables TEXT" and "chunk zTXt enables TEXT"
- to pnglibconf.dfa.
- Removed "option READ_COMPRESSED_TEXT enables READ_TEXT" from pnglibconf.dfa,
- to make it possible to configure a libpng that supports iCCP but not TEXT.
-
-Version 1.6.14beta07 [October 7, 2014]
- Removed "option WRITE_COMPRESSED_TEXT enables WRITE_TEXT" from pnglibconf.dfa
- Only mark text chunks as written after successfully writing them.
-
-Version 1.6.14rc01 [October 15, 2014]
- Fixed some typos in comments.
-
-Version 1.6.14rc02 [October 17, 2014]
- Changed png_convert_to_rfc_1123() to png_convert_to_rfc_1123_buffer()
- in the manual, to reflect the change made in libpng-1.6.0.
- Updated README file to explain that direct access to the png_struct
- and info_struct members has not been permitted since libpng-1.5.0.
-
-Version 1.6.14 [October 23, 2014]
- No changes.
-
-Version 1.6.15beta01 [October 29, 2014]
- Changed "if (!x)" to "if (x == 0)" and "if (x)" to "if (x != 0)"
- Simplified png_free_data().
- Added missing "ptr = NULL" after some instances of png_free().
-
-Version 1.6.15beta02 [November 1, 2014]
- Changed remaining "if (!x)" to "if (x == 0)" and "if (x)" to "if (x != 0)"
-
-Version 1.6.15beta03 [November 3, 2014]
- Added PNG_USE_ARM_NEON configuration flag (Marcin Juszkiewicz).
-
-Version 1.6.15beta04 [November 4, 2014]
- Removed new PNG_USE_ARM_NEON configuration flag and made a one-line
- revision to configure.ac to support ARM on aarch64 instead (John Bowler).
-
-Version 1.6.15beta05 [November 5, 2014]
- Use png_get_libpng_ver(NULL) instead of PNG_LIBPNG_VER_STRING in
- example.c, pngtest.c, and applications in the contrib directory.
- Fixed an out-of-range read in png_user_version_check() (Bug report from
- Qixue Xiao, CVE-2015-8540).
- Simplified and future-proofed png_user_version_check().
- Fixed GCC unsigned int->float warnings. Various versions of GCC
- seem to generate warnings when an unsigned value is implicitly
- converted to double. This is probably a GCC bug but this change
- avoids the issue by explicitly converting to (int) where safe.
- Free all allocated memory in pngimage. The file buffer cache was left
- allocated at the end of the program, harmless but it causes memory
- leak reports from clang.
- Fixed array size calculations to avoid warnings. At various points
- in the code the number of elements in an array is calculated using
- sizeof. This generates a compile time constant of type (size_t) which
- is then typically assigned to an (unsigned int) or (int). Some versions
- of GCC on 64-bit systems warn about the apparent narrowing, even though
- the same compiler does apparently generate the correct, in-range,
- numeric constant. This adds appropriate, safe, casts to make the
- warnings go away.
-
-Version 1.6.15beta06 [November 6, 2014]
- Reverted use png_get_libpng_ver(NULL) instead of PNG_LIBPNG_VER_STRING
- in the manual, example.c, pngtest.c, and applications in the contrib
- directory. It was incorrect advice.
-
-Version 1.6.15beta07 [November 7, 2014]
- Removed #ifdef PNG_16BIT_SUPPORTED/#endif around png_product2(); it is
- needed by png_reciprocal2().
- Added #ifdef PNG_16BIT_SUPPORTED/#endif around png_log16bit() and
- png_do_swap().
- Changed all "#endif /* PNG_FEATURE_SUPPORTED */" to "#endif /* FEATURE */"
-
-Version 1.6.15beta08 [November 8, 2014]
- More housecleaning in *.h
-
-Version 1.6.15rc01 [November 13, 2014]
-
-Version 1.6.15rc02 [November 14, 2014]
- The macros passed in the command line to Borland make were ignored if
- similarly-named macros were already defined in makefiles. This behavior
- is different from POSIX make and other make programs. Surround the
- macro definitions with ifndef guards (Cosmin).
-
-Version 1.6.15rc03 [November 16, 2014]
- Added "-D_CRT_SECURE_NO_WARNINGS" to CFLAGS in scripts/makefile.vcwin32.
- Removed the obsolete $ARCH variable from scripts/makefile.darwin.
-
-Version 1.6.15 [November 20, 2014]
- No changes.
-
-Version 1.6.16beta01 [December 14, 2014]
- Added ".align 2" to arm/filter_neon.S to support old GAS assemblers that
- don't do alignment correctly.
- Revised Makefile.am and scripts/symbols.dfn to work with MinGW/MSYS
- (Bob Friesenhahn).
-
-Version 1.6.16beta02 [December 15, 2014]
- Revised Makefile.am and scripts/*.dfn again to work with MinGW/MSYS;
- renamed scripts/*.dfn to scripts/*.c (John Bowler).
-
-Version 1.6.16beta03 [December 21, 2014]
- Quiet a "comparison always true" warning in pngstest.c (John Bowler).
-
-Version 1.6.16rc01 [December 21, 2014]
- Restored a test on width that was removed from png.c at libpng-1.6.9
- (Bug report by Alex Eubanks, CVE-2015-0973).
-
-Version 1.6.16rc02 [December 21, 2014]
- Undid the update to pngrutil.c in 1.6.16rc01.
-
-Version 1.6.16rc03 [December 21, 2014]
- Fixed an overflow in png_combine_row() with very wide interlaced images
- (Bug report and fix by John Bowler, CVE-2014-9495).
-
-Version 1.6.16 [December 22, 2014]
- No changes.
-
-Version 1.6.17beta01 [January 29, 2015]
- Removed duplicate PNG_SAFE_LIMITS_SUPPORTED handling from pngconf.h
- Corrected the width limit calculation in png_check_IHDR().
- Removed user limits from pngfix. Also pass NULL pointers to
- png_read_row to skip the unnecessary row de-interlace stuff.
- Added testing of png_set_packing() to pngvalid.c
- Regenerated configure scripts in the *.tar distributions with libtool-2.4.4
- Implement previously untested cases of libpng transforms in pngvalid.c
- Fixed byte order in png_do_read_filler() with 16-bit input. Previously
- the high and low bytes of the filler, from png_set_filler() or from
- png_set_add_alpha(), were read in the wrong order.
- Made the check for out-of-range values in png_set_tRNS() detect
- values that are exactly 2^bit_depth, and work on 16-bit platforms.
- Merged some parts of libpng-1.6.17beta01 and libpng-1.7.0beta47.
- Added #ifndef __COVERITY__ where needed in png.c, pngrutil.c and
- pngset.c to avoid warnings about dead code.
- Added "& 0xff" to many instances of expressions that are typecast
- to (png_byte), to avoid Coverity warnings.
-
-Version 1.6.17beta02 [February 7, 2015]
- Work around one more Coverity-scan dead-code warning.
- Do not build png_product2() when it is unused.
-
-Version 1.6.17beta03 [February 17, 2015]
- Display user limits in the output from pngtest.
- Eliminated the PNG_SAFE_LIMITS macro and restored the 1-million-column
- and 1-million-row default limits in pnglibconf.dfa, that can be reset
- by the user at build time or run time. This provides a more robust
- defense against DOS and as-yet undiscovered overflows.
-
-Version 1.6.17beta04 [February 21, 2015]
- Added PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED macro, on by default.
- Allow user to call png_get_IHDR() with NULL arguments (Reuben Hawkins).
- Rebuilt configure scripts with automake-1.15 and libtool-2.4.6
-
-Version 1.6.17beta05 [February 25, 2015]
- Restored compiling of png_reciprocal2 with PNG_NO_16BIT.
-
-Version 1.6.17beta06 [February 27, 2015]
- Moved png_set_filter() prototype into a PNG_WRITE_SUPPORTED block
- of png.h.
- Avoid runtime checks when converting integer to png_byte with
- Visual Studio (Sergey Kosarevsky)
-
-Version 1.6.17rc01 [March 4, 2015]
- No changes.
-
-Version 1.6.17rc02 [March 9, 2015]
- Removed some comments that the configure script did not handle
- properly from scripts/pnglibconf.dfa and pnglibconf.h.prebuilt.
- Free the unknown_chunks structure even when it contains no data.
-
-Version 1.6.17rc03 [March 12, 2015]
- Updated CMakeLists.txt to add OSX framework, change YES/NO to ON/OFF
- for consistency, and remove some useless tests (Alexey Petruchik).
-
-Version 1.6.17rc04 [March 16, 2015]
- Remove pnglibconf.h, pnglibconf.c, and pnglibconf.out instead of
- pnglibconf.* in "make clean" (Cosmin).
- Fix bug in calculation of maxbits, in png_write_sBIT, introduced
- in libpng-1.6.17beta01 (John Bowler).
-
-Version 1.6.17rc05 [March 21, 2015]
- Define PNG_FILTER_* and PNG_FILTER_VALUE_* in png.h even when WRITE
- is not supported (John Bowler). This fixes an error introduced in
- libpng-1.6.17beta06.
- Reverted "& 0xff" additions of version 1.6.17beta01. Libpng passes
- the Coverity scan without them.
-
-Version 1.6.17rc06 [March 23, 2015]
- Remove pnglibconf.dfn and pnglibconf.pre with "make clean".
- Reformatted some "&0xff" instances to "& 0xff".
- Fixed simplified 8-bit-linear to sRGB alpha. The calculated alpha
- value was wrong. It's not clear if this affected the final stored
- value; in the obvious code path the upper and lower 8-bits of the
- alpha value were identical and the alpha was truncated to 8-bits
- rather than dividing by 257 (John Bowler).
-
-Version 1.6.17 [March 26, 2015]
- No changes.
-
-Version 1.6.18beta01 [April 1, 2015]
- Removed PNG_SET_CHUNK_[CACHE|MALLOC]_LIMIT_SUPPORTED macros. They
- have been combined with PNG_SET_USER_LIMITS_SUPPORTED (resolves
- bug report by Andrew Church).
- Fixed rgb_to_gray checks and added tRNS checks to pngvalid.c. This
- fixes some arithmetic errors that caused some tests to fail on
- some 32-bit platforms (Bug reports by Peter Breitenlohner [i686]
- and Petr Gajdos [i586]).
-
-Version 1.6.18beta02 [April 26, 2015]
- Suppressed some warnings from the Borland C++ 5.5.1/5.82 compiler
- (Bug report by Viktor Szakats).
-
-Version 1.6.18beta03 [May 6, 2015]
- Replaced "unexpected" with an integer (0xabadca11) in pngset.c
- where a long was expected, to avoid a compiler warning when PNG_DEBUG > 1.
- Added contrib/examples/simpleover.c, to demonstrate how to handle
- alpha compositing of multiple images, using the "simplified API"
- and an example PNG generation tool, contrib/examples/genpng.c
- (John Bowler).
-
-Version 1.6.18beta04 [May 20, 2015]
- PNG_RELEASE_BUILD replaces tests where the code depended on the build base
- type and can be defined on the command line, allowing testing in beta
- builds (John Bowler).
- Avoid Coverity issue 80858 (REVERSE NULL) in pngtest.c PNG_DEBUG builds.
- Avoid a harmless potential integer overflow in png_XYZ_from_xy() (Bug
- report from Christopher Ferris).
-
-Version 1.6.18beta05 [May 31, 2015]
- Backport filter selection code from libpng-1.7.0beta51, to combine
- sub_row, up_row, avg_row, and paeth_row into try_row and tst_row.
- Changed png_voidcast(), etc., to voidcast(), etc., in contrib/tools/pngfix.c
- to avoid confusion with the libpng private macros.
- Fixed old cut&paste bug in the weighted filter selection code in
- pngwutil.c, introduced in libpng-0.95, March 1997.
-
-Version 1.6.18beta06 [June 1, 2015]
- Removed WRITE_WEIGHTED_FILTERED code, to save a few kbytes of the
- compiled library size. It never worked properly and as far as we can
- tell, no one uses it. The png_set_filter_heuristics() and
- png_set_filter_heuristics_fixed() APIs are retained but deprecated
- and do nothing.
-
-Version 1.6.18beta07 [June 6, 2015]
- Removed non-working progressive reader 'skip' function. This
- function has apparently never been used. It was implemented
- to support back-door modification of png_struct in libpng-1.4.x
- but (because it does nothing and cannot do anything) was apparently
- never tested (John Bowler).
- Fixed cexcept.h in which GCC 5 now reports that one of the auto
- variables in the Try macro needs to be volatile to prevent value
- being lost over the setjmp (John Bowler).
- Fixed NO_WRITE_FILTER and -Wconversion build breaks (John Bowler).
- Fix g++ build breaks (John Bowler).
- Quieted some Coverity issues in pngfix.c, png-fix-itxt.c, pngvalid.c,
- pngstest.c, and pngimage.c. Most seem harmless, but png-fix-itxt
- would only work with iTXt chunks with length 255 or less.
- Added #ifdef's to contrib/examples programs so people don't try
- to compile them without the minimum required support enabled
- (suggested by Flavio Medeiros).
-
-Version 1.6.18beta08 [June 30, 2015]
- Eliminated the final two Coverity defects (insecure temporary file
- handling in contrib/libtests/pngstest.c; possible overflow of
- unsigned char in contrib/tools/png-fix-itxt.c). To use the "secure"
- file handling, define PNG_USE_MKSTEMP, otherwise "tmpfile()" will
- be used.
- Removed some unused WEIGHTED_FILTER macros from png.h and pngstruct.h
-
-Version 1.6.18beta09 [July 5, 2015]
- Removed some useless typecasts from contrib/tools/png-fix-itxt.c
- Fixed a new signed-unsigned comparison in pngrtran.c (Max Stepin).
- Replaced arbitrary use of 'extern' with #define PNG_LINKAGE_*. To
- preserve API compatibility, the new defines all default to "extern"
- (requested by Jan Nijtmans).
-
-Version 1.6.18rc01 [July 9, 2015]
- Belatedly added Mans Rullgard and James Yu to the list of Contributing
- Authors.
-
-Version 1.6.18rc02 [July 12, 2015]
- Restored unused FILTER_HEURISTIC macros removed at libpng-1.6.18beta08
- to png.h to avoid compatibility warnings.
-
-Version 1.6.18rc03 [July 15, 2015]
- Minor changes to the man page
-
-Version 1.6.18 [July 23, 2015]
- No changes.
-
-Version 1.6.19beta01 [July 30, 2015]
- Updated obsolete information about the simplified API macros in the
- manual pages (Bug report by Arc Riley).
- Avoid potentially dereferencing NULL info_ptr in png_info_init_3().
- Rearranged png.h to put the major sections in the same order as
- in libpng17.
- Eliminated unused PNG_COST_SHIFT, PNG_WEIGHT_SHIFT, PNG_COST_FACTOR, and
- PNG_WEIGHT_FACTOR macros.
- Suppressed some warnings from the Borland C++ 5.5.1/5.82 compiler
- (Bug report by Viktor Szakats). Several warnings remain and are
- unavoidable, where we test for overflow.
- Fixed potential leak of png_pixels in contrib/pngminus/pnm2png.c
- Fixed uninitialized variable in contrib/gregbook/rpng2-x.c
-
-Version 1.6.19beta02 [August 19, 2015]
- Moved config.h.in~ from the "libpng_autotools_files" list to the
- "libpng_autotools_extra" list in autogen.sh because it was causing a
- false positive for missing files (bug report by Robert C. Seacord).
- Removed unreachable "break" statements in png.c, pngread.c, and pngrtran.c
- to suppress clang warnings (Bug report by Viktor Szakats).
- Fixed some bad links in the man page.
- Changed "n bit" to "n-bit" in comments.
- Added signed/unsigned 16-bit safety net. This removes the dubious
- 0x8000 flag definitions on 16-bit systems. They aren't supported
- yet the defs *probably* work, however it seems much safer to do this
- and be advised if anyone, contrary to advice, is building libpng 1.6
- on a 16-bit system. It also adds back various switch default clauses
- for GCC; GCC errors out if they are not present (with an appropriately
- high level of warnings).
- Safely convert num_bytes to a png_byte in png_set_sig_bytes() (Robert
- Seacord).
- Fixed the recently reported 1's complement security issue by replacing
- the value that is illegal in the PNG spec, in both signed and unsigned
- values, with 0. Illegal unsigned values (anything greater than or equal
- to 0x80000000) can still pass through, but since these are not illegal
- in ANSI-C (unlike 0x80000000 in the signed case) the checking that
- occurs later can catch them (John Bowler).
-
-Version 1.6.19beta03 [September 26, 2015]
- Fixed png_save_int_32 when int is not 2's complement (John Bowler).
- Updated libpng16 with all the recent test changes from libpng17,
- including changes to pngvalid.c to ensure that the original,
- distributed, version of contrib/visupng/cexcept.h can be used
- (John Bowler).
- pngvalid contains the correction to the use of SAVE/STORE_
- UNKNOWN_CHUNKS; a bug revealed by changes in libpng 1.7. More
- tests contain the --strict option to detect warnings and the
- pngvalid-standard test has been corrected so that it does not
- turn on progressive-read. There is a separate test which does
- that. (John Bowler)
- Also made some signed/unsigned fixes.
- Make pngstest error limits version specific. Splitting the machine
- generated error structs out to a file allows the values to be updated
- without changing pngstest.c itself. Since libpng 1.6 and 1.7 have
- slightly different error limits this simplifies maintenance. The
- makepngs.sh script has also been updated to more accurately reflect
- current problems in libpng 1.7 (John Bowler).
- Incorporated new test PNG files into make check. tests/pngstest-*
- are changed so that the new test files are divided into 8 groups by
- gamma and alpha channel. These tests have considerably better code
- and pixel-value coverage than contrib/pngsuite; however,coverage is
- still incomplete (John Bowler).
- Removed the '--strict' in 1.6 because of the double-gamma-correction
- warning, updated pngstest-errors.h for the errors detected with the
- new contrib/testspngs PNG test files (John Bowler).
-
-Version 1.6.19beta04 [October 15, 2015]
- Worked around rgb-to-gray issues in libpng 1.6. The previous
- attempts to ignore the errors in the code aren't quite enough to
- deal with the 'channel selection' encoding added to libpng 1.7; abort.
- pngvalid.c is changed to drop this encoding in prior versions.
- Fixed 'pow' macros in pngvalid.c. It is legal for 'pow' to be a
- macro, therefore the argument list cannot contain preprocessing
- directives. Make sure pow is a function where this happens. This is
- a minimal safe fix, the issue only arises in non-performance-critical
- code (bug report by Curtis Leach, fix by John Bowler).
- Added sPLT support to pngtest.c
-
-Version 1.6.19rc01 [October 23, 2015]
- No changes.
-
-Version 1.6.19rc02 [October 31, 2015]
- Prevent setting or writing over-length PLTE chunk (Cosmin Truta).
- Silently truncate over-length PLTE chunk while reading.
- Libpng incorrectly calculated the output rowbytes when the application
- decreased either the number of channels or the bit depth (or both) in
- a user transform. This was safe; libpng overallocated buffer space
- (potentially by quite a lot; up to 4 times the amount required) but,
- from 1.5.4 on, resulted in a png_error (John Bowler).
-
-Version 1.6.19rc03 [November 3, 2015]
- Fixed some inconsequential cut-and-paste typos in png_set_cHRM_XYZ_fixed().
- Clarified COPYRIGHT information to state explicitly that versions
- are derived from previous versions.
- Removed much of the long list of previous versions from png.h and
- libpng.3.
-
-Version 1.6.19rc04 [November 5, 2015]
- Fixed new bug with CRC error after reading an over-length palette
- (bug report by Cosmin Truta) (CVE-2015-8126).
-
-Version 1.6.19 [November 12, 2015]
- Cleaned up coding style in png_handle_PLTE().
-
-Version 1.6.20beta01 [November 20, 2015]
- Avoid potential pointer overflow/underflow in png_handle_sPLT() and
- png_handle_pCAL() (Bug report by John Regehr).
-
-Version 1.6.20beta02 [November 23, 2015]
- Fixed incorrect implementation of png_set_PLTE() that uses png_ptr
- not info_ptr, that left png_set_PLTE() open to the CVE-2015-8126
- vulnerability. Fixes CVE-2015-8472.
-
-Version 1.6.20beta03 [November 24, 2015]
- Backported tests from libpng-1.7.0beta69.
-
-Version 1.6.20rc01 [November 26, 2015]
- Fixed an error in handling of bad zlib CMINFO field in pngfix, found by
- American Fuzzy Lop, reported by Brian Carpenter. inflate() doesn't
- immediately fault a bad CMINFO field; instead a 'too far back' error
- happens later (at least some times). pngfix failed to limit CMINFO to
- the allowed values but then assumed that window_bits was in range,
- triggering an assert. The bug is mostly harmless; the PNG file cannot
- be fixed.
-
-Version 1.6.20rc02 [November 29, 2015]
- In libpng 1.6 zlib initialization was changed to use the window size
- in the zlib stream, not a fixed value. This causes some invalid images,
- where CINFO is too large, to display 'correctly' if the rest of the
- data is valid. This provides a workaround for zlib versions where the
- error arises (ones that support the API change to use the window size
- in the stream).
-
-Version 1.6.20 [December 3, 2015]
- No changes.
-
-Version 1.6.21beta01 [December 11, 2015]
- Fixed syntax "$(command)" in tests/pngstest that some shells other than
- bash could not parse (Bug report by Nelson Beebe). Use `command` instead.
-
-Version 1.6.21beta02 [December 14, 2015]
- Moved png_check_keyword() from pngwutil.c to pngset.c
- Removed LE/BE dependencies in pngvalid, to 'fix' the current problem
- in the BigEndian tests by not testing it, making the BE code the same
- as the LE version.
- Fixes to pngvalid for various reduced build configurations (eliminate unused
- statics) and a fix for the case in rgb_to_gray when the digitize option
- reduces graylo to 0, producing a large error.
-
-Version 1.6.21beta03 [December 18, 2015]
- Widened the 'limit' check on the internally calculated error limits in
- the 'DIGITIZE' case (the code used prior to 1.7 for rgb_to_gray error
- checks) and changed the check to only operate in non-release builds
- (base build type not RC or RELEASE.)
- Fixed undefined behavior in pngvalid.c, undefined because
- (png_byte) << shift is undefined if it changes the signed bit
- (because png_byte is promoted to int). The libpng exported functions
- png_get_uint_32 and png_get_uint_16 handle this. (Bug reported by
- David Drysdale as a result of reports from UBSAN in clang 3.8).
- This changes pngvalid to use BE random numbers; this used to produce
- errors but these should not be fixed as a result of the previous changes.
-
-Version 1.6.21rc01 [January 4, 2016]
- In projects/vstudio, combined readme.txt and WARNING into README.txt
-
-Version 1.6.21rc02 [January 7, 2016]
- Relocated assert() in contrib/tools/pngfix.c, bug found by American
- Fuzzy Lop, reported by Brian Carpenter.
- Marked 'limit' UNUSED in transform_range_check(). This only affects
- release builds.
-
-Version 1.6.21 [January 15, 2016]
- Worked around a false-positive Coverity issue in pngvalid.c.
-
-Version 1.6.22beta01 [January 23, 2016]
- Changed PNG_USE_MKSTEMP to __COVERITY__ to select alternate
- "tmpfile()" implementation in contrib/libtests/pngstest.c
- Fixed NO_STDIO build of pngunknown.c to skip calling png_init_io()
- if there is no stdio.h support.
- Added a png_image_write_to_memory() API and a number of assist macros
- to allow an application that uses the simplified API write to bypass
- stdio and write directly to memory.
- Added some warnings (png.h) and some check code to detect *possible*
- overflow in the ROW_STRIDE and simplified image SIZE macros. This
- disallows image width/height/format that *might* overflow. This is
- a quiet API change that limits in-memory image size (uncompressed) to
- less than 4GByte and image row size (stride) to less than 2GByte.
- Revised workaround for false-positive Coverity issue in pngvalid.c.
-
-Version 1.6.22beta02 [February 8, 2016]
- Only use exit(77) in configure builds.
- Corrected error in PNG_IMAGE_PNG_SIZE_MAX. This new macro underreported
- the palette size because it failed to take into account that the memory
- palette has to be expanded to full RGB when it is written to PNG.
- Updated CMakeLists.txt, added supporting scripts/gen*.cmake.in
- and test.cmake.in (Roger Leigh).
- Relaxed limit checks on gamma values in pngrtran.c. As suggested in
- the comments gamma values outside the range currently permitted
- by png_set_alpha_mode are useful for HDR data encoding. These values
- are already permitted by png_set_gamma so it is reasonable caution to
- extend the png_set_alpha_mode range as HDR imaging systems are starting
- to emerge.
-
-Version 1.6.22beta03 [March 9, 2016]
- Added a common-law trademark notice and export control information
- to the LICENSE file, png.h, and the man page.
- Restored "& 0xff" in png_save_uint_16() and png_save_uint_32() that
- were accidentally removed from libpng-1.6.17.
- Changed PNG_INFO_cHNK and PNG_FREE_cHNK from 0xnnnn to 0xnnnnU in png.h
- (Robert C. Seacord).
- Removed dubious "#if INT_MAX" test from png.h that was added to
- libpng-1.6.19beta02 (John Bowler).
- Add ${INCLUDES} in scripts/genout.cmake.in (Bug report by Nixon Kwok).
- Updated LICENSE to say files in the contrib directory are not
- necessarily under the libpng license, and that some makefiles have
- other copyright owners.
- Added INTEL-SSE2 support (Mike Klein and Matt Sarett, Google, Inc.).
- Made contrib/libtests/timepng more robust. The code no longer gives
- up/fails on invalid PNG data, it just skips it (with error messages).
- The code no longer fails on PNG files with data beyond IEND. Options
- exist to use png_read_png (reading the whole image, not by row) and, in
- that case, to apply any of the supported transforms. This makes for
- more realistic testing; the decoded data actually gets used in a
- meaningful fashion (John Bowler).
- Fixed some misleading indentation (Krishnaraj Bhat).
-
-Version 1.6.22beta04 [April 5, 2016]
- Force GCC compilation to C89 if needed (Dagobert Michelsen).
- SSE filter speed improvements for bpp=3:
- memcpy-free implementations of load3() / store3().
- call load3() only when needed at the end of a scanline.
-
-Version 1.6.22beta05 [April 27, 2016]
- Added PNG_FAST_FILTERS macro (defined as
- PNG_FILTER_NONE|PNG_FILTER_SUB|PNG_FILTER_UP).
- Various fixes for contrib/libtests/timepng.c
- Moved INTEL-SSE code from pngpriv.h into contrib/intel/intel_sse.patch.
- Fixed typo (missing underscore) in #define PNG_READ_16_TO_8_SUPPORTED
- (Bug report by Y.Ohashik).
-
-Version 1.6.22beta06 [May 5, 2016]
- Rebased contrib/intel_sse.patch.
- Quieted two Coverity issues in contrib/libtests/timepng.c.
- Fixed issues with scripts/genout.cmake.in (David Capello, Nixon Kwok):
- Added support to use multiple directories in ZLIBINCDIR variable,
- Fixed CMAKE_C_FLAGS with multiple values when genout is compiled on MSVC,
- Fixed pnglibconf.c compilation on OS X including the sysroot path.
-
-Version 1.6.22rc01 [May 14, 2016]
- No changes.
-
-Version 1.6.22rc02 [May 16, 2016]
- Removed contrib/timepng from default build; it does not build on platforms
- that don't supply clock_gettime().
-
-Version 1.6.22rc03 [May 17, 2016]
- Restored contrib/timepng to default build but check for the presence
- of clock_gettime() in configure.ac and Makefile.am.
-
-Version 1.6.22 [May 26, 2016]
- No changes.
-
-Version 1.6.23beta01 [May 29, 2016]
- Stop a potential memory leak in png_set_tRNS() (Bug report by Ted Ying).
- Fixed the progressive reader to handle empty first IDAT chunk properly
- (patch by Timothy Nikkel). This bug was introduced in libpng-1.6.0 and
- only affected the libpng16 branch.
- Added tests in pngvalid.c to check zero-length IDAT chunks in various
- positions. Fixed the sequential reader to handle these more robustly
- (John Bowler).
-
-Version 1.6.23rc01 [June 2, 2016]
- Corrected progressive read input buffer in pngvalid.c. The previous version
- the code invariably passed just one byte at a time to libpng. The intent
- was to pass a random number of bytes in the range 0..511.
- Moved sse2 prototype from pngpriv.h to contrib/intel/intel_sse.patch.
- Added missing ")" in pngerror.c (Matt Sarrett).
-
-Version 1.6.23rc02 [June 4, 2016]
- Fixed undefined behavior in png_push_save_buffer(). Do not call
- memcpy() with a null source, even if count is zero (Leon Scroggins III).
-
-Version 1.6.23 [June 9, 2016]
- Fixed bad link to RFC2083 in png.5 (Nikola Forro).
-
-Version 1.6.24beta01 [June 11, 2016]
- Avoid potential overflow of the PNG_IMAGE_SIZE macro. This macro
- is not used within libpng, but is used in some of the examples.
-
-Version 1.6.24beta02 [June 23, 2016]
- Correct filter heuristic overflow handling. This was broken when the
- write filter code was moved out-of-line; if there is a single filter and
- the heuristic sum overflows the calculation of the filtered line is not
- completed. In versions prior to 1.6 the code was duplicated in-line
- and the check not performed, so the filter operation completed; however,
- in the multi-filter case where the sum is performed the 'none' filter would
- be selected if all the sums overflowed, even if it wasn't in the filter
- list. The fix to the first problem is simply to provide PNG_SIZE_MAX as
- the current lmins sum value; this means the sum can never exceed it and
- overflows silently. A reasonable compiler that does choose to inline
- the code will simply eliminate the sum check.
- The fix to the second problem is to use high precision arithmetic (this is
- implemented in 1.7), however a simple safe fix here is to chose the lowest
- numbered filter in the list from png_set_filter (this only works if the
- first problem is also fixed) (John Bowler).
- Use a more efficient absolute value calculation on SSE2 (Matthieu Darbois).
- Fixed the case where PNG_IMAGE_BUFFER_SIZE can overflow in the application
- as a result of the application using an increased 'row_stride'; previously
- png_image_finish_read only checked for overflow on the base calculation of
- components. (I.e. it checked for overflow of a 32-bit number on the total
- number of pixel components in the output format, not the possibly padded row
- length and not the number of bytes, which for linear formats is twice the
- number of components.)
- MSVC does not like '-(unsigned)', so replaced it with 0U-(unsigned)
- MSVC does not like (uInt) = -(unsigned) (i.e. as an initializer), unless
- the conversion is explicitly invoked by a cast.
- Put the SKIP definition in the correct place. It needs to come after the
- png.h include (see all the other .c files in contrib/libtests) because it
- depends on PNG_LIBPNG_VER.
- Removed the three compile warning options from the individual project
- files into the zlib.props globals. It increases the warning level from 4
- to All and adds a list of the warnings that need to be turned off. This is
- semi-documentary; the intent is to tell libpng users which warnings have
- been examined and judged non-fixable at present. The warning about
- structure padding is fixable, but it would be a significant change (moving
- structure members around).
-
-Version 1.6.24beta03 [July 4, 2016]
- Optimized absolute value calculation in filter selection, similar to
- code in the PAETH decoder in pngrutil.c. Build with PNG_USE_ABS to
- use this.
- Added pngcp to the build together with a pngcp.dfa configuration test.
- Added high resolution timing to pngcp.
- Added "Common linking failures" section to INSTALL.
- Relocated misplaced #endif in png.c sRGB profile checking.
- Fixed two Coverity issues in pngcp.c.
-
-Version 1.6.24beta04 [July 8, 2016]
- Avoid filter-selection heuristic sum calculations in cases where only one
- filter is a candidate for selection. This trades off code size (added
- private png_setup_*_row_only() functions) for speed.
-
-Version 1.6.24beta05 [July 13, 2016]
- Fixed some indentation to comply with our coding style.
- Added contrib/tools/reindent.
-
-Version 1.6.24beta06 [July 18, 2016]
- Fixed more indentation to comply with our coding style.
- Eliminated unnecessary tests of boolean png_isaligned() vs 0.
-
-Version 1.6.24rc01 [July 25, 2016]
- No changes.
-
-Version 1.6.24rc02 [August 1, 2016]
- Conditionally compile SSE2 headers in contrib/intel/intel_sse.patch
- Conditionally compile png_decompress_chunk().
-
-Version 1.6.24rc03 [August 2, 2016]
- Conditionally compile ARM_NEON headers in pngpriv.h
- Updated contrib/intel/intel_sse.patch
-
-Version 1.6.24[August 4, 2016]
- No changes.
-
-Version 1.6.25beta01 [August 12, 2016]
- Reject oversized iCCP profile immediately.
- Cleaned up PNG_DEBUG compile of pngtest.c.
- Conditionally compile png_inflate().
-
-Version 1.6.25beta02 [August 18, 2016]
- Don't install pngcp; it conflicts with pngcp in the pngtools package.
- Minor editing of INSTALL, (whitespace, added copyright line)
-
-Version 1.6.25rc01 [August 24, 2016]
- No changes.
-
-Version 1.6.25rc02 [August 29, 2016]
- Added MIPS support (Mandar Sahastrabuddhe <Mandar.Sahastrabuddhe@imgtec.com>).
- Only the UP filter is currently implemented.
-
-Version 1.6.25rc03 [August 29, 2016]
- Rebased contrib/intel/intel_sse.patch after the MIPS implementation.
-
-Version 1.6.25rc04 [August 30, 2016]
- Added MIPS support for SUB, AVG, and PAETH filters (Mandar Sahastrabuddhe).
-
-Version 1.6.25rc05 [August 30, 2016]
- Rebased contrib/intel/intel_sse.patch after the MIPS implementation update..
-
-Version 1.6.25 [September 1, 2016]
- No changes.
-
-Version 1.6.26beta01 [September 26, 2016]
- Fixed handling zero length IDAT in pngfix (bug report by Agostino Sarubbo,
- bugfix by John Bowler).
- Do not issue a png_error() on read in png_set_pCAL() because png_handle_pCAL
- has allocated memory that libpng needs to free.
- Conditionally compile png_set_benign_errors() in pngread.c and pngtest.c
- Issue a png_benign_error instead of a png_error on ADLER32 mismatch
- while decoding compressed data chunks.
- Changed PNG_ZLIB_VERNUM to ZLIB_VERNUM in pngpriv.h, pngstruct.h, and
- pngrutil.c.
- If CRC handling of critical chunks has been set to PNG_CRC_QUIET_USE,
- ignore the ADLER32 checksum in the IDAT chunk as well as the chunk CRCs.
- Issue png_benign_error() on ADLER32 checksum mismatch instead of png_error().
- Add tests/badcrc.png and tests/badadler.png to tests/pngtest.
- Merged pngtest.c with libpng-1.7.0beta84/pngtest.c
-
-Version 1.6.26beta02 [October 1, 2016]
- Updated the documentation about CRC and ADLER32 handling.
- Quieted 117 warnings from clang-3.8 in pngtrans.c, pngread.c,
- pngwrite.c, pngunknown.c, and pngvalid.c.
- Quieted 58 (out of 144) -Wconversion compiler warnings by changing
- flag definitions in pngpriv.h from 0xnnnn to 0xnnnnU and trivial changes
- in png.c, pngread.c, and pngwutil.c.
-
-Version 1.6.26beta03 [October 2, 2016]
- Removed contrib/libtests/*.orig and *.rej that slipped into the tarballs.
- Quieted the 86 remaining -Wconversion compiler warnings by
- revising the png_isaligned() macro and trivial changes in png.c,
- pngerror.c, pngget.c, pngmem.c, pngset.c, pngrtran.c, pngrutil.c,
- pngwtran.c, pngwrite.c, and pngwutil.c.
-
-Version 1.6.26beta04 [October 3, 2016]
- Quieted (bogus?) clang warnings about "absolute value has no effect"
- when PNG_USE_ABS is defined.
- Fixed offsets in contrib/intel/intel_sse.patch
-
-Version 1.6.26beta05 [October 6, 2016]
- Changed integer constant 4294967294 to unsigned 4294967294U in pngconf.h
- to avoid a signed/unsigned compare in the preprocessor.
-
-Version 1.6.26beta06 [October 7, 2016]
- Use zlib-1.2.8.1 inflateValidate() instead of inflateReset2() to
- optionally avoid ADLER32 evaluation.
-
-Version 1.6.26rc01 [October 12, 2016]
- No changes.
-
-Version 1.6.26 [October 20, 2016]
- Cosmetic change, "ptr != 0" to "ptr != NULL" in png.c and pngrutil.c
- Despammed email addresses (replaced "@" with " at ").
-
-Version 1.6.27beta01 [November 2, 2016]
- Restrict the new ADLER32-skipping to IDAT chunks. It broke iCCP chunk
- handling: an erroneous iCCP chunk would throw a png_error and reject the
- entire PNG image instead of rejecting just the iCCP chunk with a warning,
- if built with zlib-1.2.8.1.
-
-Version 1.6.27rc01 [December 27, 2016]
- Control ADLER32 checking with new PNG_IGNORE_ADLER32 option. Fixes
- an endless loop when handling erroneous ADLER32 checksums; bug
- introduced in libpng-1.6.26.
- Removed the use of a macro containing the pre-processor 'defined'
- operator. It is unclear whether this is valid; a macro that
- "generates" 'defined' is not permitted, but the use of the word
- "generates" within the C90 standard seems to imply more than simple
- substitution of an expression itself containing a well-formed defined
- operation.
- Added ARM support to CMakeLists.txt (Andreas Franek).
-
-Version 1.6.27 [December 29, 2016]
- Fixed a potential null pointer dereference in png_set_text_2() (bug report
- and patch by Patrick Keshishian, CVE-2016-10087).
-
-Version 1.6.28rc01 [January 3, 2017]
- Fixed arm/aarch64 detection in CMakeLists.txt (Gianfranco Costamagna).
- Added option to Cmake build allowing a custom location of zlib to be
- specified in a scenario where libpng is being built as a subproject
- alongside zlib by another project (Sam Serrels).
- Changed png_ptr->options from a png_byte to png_uint_32, to accommodate
- up to 16 options.
-
-Version 1.6.28rc02 [January 4, 2017]
- Added "include(GNUInstallDirs)" to CMakeLists.txt (Gianfranco Costamagna).
- Moved SSE2 optimization code into the main libpng source directory.
- Configure libpng with "configure --enable-intel-sse" or compile
- libpng with "-DPNG_INTEL_SSE" in CPPFLAGS to enable it.
-
-Version 1.6.28rc03 [January 4, 2017]
- Backed out the SSE optimization and last CMakeLists.txt to allow time for QA.
-
-Version 1.6.28 [January 5, 2017]
- No changes.
-
-Version 1.6.29beta01 [January 12, 2017]
- Readded "include(GNUInstallDirs)" to CMakeLists.txt (Gianfranco Costamagna).
- Moved SSE2 optimization code into the main libpng source directory.
- Configure libpng with "configure --enable-intel-sse" or compile
- libpng with "-DPNG_INTEL_SSE" in CPPFLAGS to enable it.
- Simplified conditional compilation in pngvalid.c, for AIX (Michael Felt).
-
-Version 1.6.29beta02 [February 22, 2017]
- Avoid conditional directives that break statements in pngrutil.c (Romero
- Malaquias)
- The contrib/examples/pngtopng.c recovery code was in the wrong "if"
- branches; the comments were correct.
- Added code for PowerPC VSX optimisation (Vadim Barkov).
-
-Version 1.6.29beta03 [March 1, 2017]
- Avoid potential overflow of shift operations in png_do_expand() (Aaron Boxer).
- Change test ZLIB_VERNUM >= 0x1281 to ZLIB_VERNUM >= 0x1290 in pngrutil.c
- because Solaris 11 distributes zlib-1.2.8.f that is older than 1.2.8.1,
- as suggested in zlib FAQ, item 24.
- Suppress clang warnings about implicit sign changes in png.c
-
-Version 1.6.29 [March 16, 2017]
- No changes.
-
-Version 1.6.30beta01 [April 1, 2017]
- Added missing "$(CPPFLAGS)" to the compile line for c.pic.o in
- makefile.linux and makefile.solaris-x86 (Cosmin).
- Revised documentation of png_get_error_ptr() in the libpng manual.
- Silence clang -Wcomma and const drop warnings (Viktor Szakats).
- Update Sourceforge URLs in documentation (https instead of http).
-
-Version 1.6.30beta02 [April 22, 2017]
- Document need to check for integer overflow when allocating a pixel
- buffer for multiple rows in contrib/gregbook, contrib/pngminus,
- example.c, and in the manual (suggested by Jaeseung Choi). This
- is similar to the bug reported against pngquant in CVE-2016-5735.
- Removed reference to the obsolete PNG_SAFE_LIMITS macro in the documentation.
-
-Version 1.6.30beta03 [May 22, 2017]
- Check for integer overflow in contrib/visupng and contrib/tools/genpng.
- Do not double evaluate CMAKE_SYSTEM_PROCESSOR in CMakeLists.txt.
- Test CMAKE_HOST_WIN32 instead of WIN32 in CMakeLists.txt.
- Fix some URL in documentation.
-
-Version 1.6.30beta04 [June 7, 2017]
- Avoid writing an empty IDAT when the last IDAT exactly fills the
- compression buffer (bug report by Brian Baird). This bug was
- introduced in libpng-1.6.0.
-
-Version 1.6.30rc01 [June 14, 2017]
- No changes.
-
-Version 1.6.30rc02 [June 25, 2017]
- Update copyright year in pnglibconf.h, make ltmain.sh executable.
- Add a reference to the libpng.download site in README.
-
-Version 1.6.30 [June 28, 2017]
- No changes.
-
-Version 1.6.31beta01 [July 5, 2017]
- Guard the definition of _POSIX_SOURCE in pngpriv.h (AIX already defines it;
- bug report by Michael Felt).
- Revised pngpriv.h to work around failure to compile arm/filter_neon.S
- ("typedef" directive is unrecognized by the assembler). The problem
- was introduced in libpng-1.6.30beta01.
- Added "Requires: zlib" to libpng.pc.in (Pieter Neerincx).
- Added special case for FreeBSD in arm/filter_neon.S (Maya Rashish).
-
-Version 1.6.31beta02 [July 8, 2017]
- Added instructions for disabling hardware optimizations in INSTALL.
- Added "--enable-hardware-optimizations" configuration flag to enable
- or disable all hardware optimizations with one flag.
-
-Version 1.6.31beta03 [July 9, 2017]
- Updated CMakeLists.txt to add INTEL_SSE and MIPS_MSA platforms.
- Changed "int" to "png_size_t" in intel/filter_sse2.c to prevent
- possible integer overflow (Bug report by John Bowler).
- Quieted "declaration after statement" warnings in intel/filter_sse2.c.
- Added scripts/makefile-linux-opt, which has hardware optimizations enabled.
-
-Version 1.6.31beta04 [July 11, 2017]
- Removed one of the GCC-7.1.0 'strict-overflow' warnings that result when
- integers appear on both sides of a compare. Worked around the others by
- forcing the strict-overflow setting in the relevant functions to a level
- where they are not reported (John Bowler).
- Changed "FALL THROUGH" comments to "FALLTHROUGH" because GCC doesn't like
- the space.
- Worked around some C-style casts from (void*) because g++ 5.4.0 objects
- to them.
- Increased the buffer size for 'sprint' to pass the gcc 7.1.0 'sprint
- overflow' check that is on by default with -Wall -Wextra.
-
-Version 1.6.31beta05 [July 13, 2017]
- Added eXIf chunk support.
-
-Version 1.6.31beta06 [July 17, 2017]
- Added a minimal eXIf chunk (with Orientation and FocalLengthIn35mmFilm
- tags) to pngtest.png.
-
-Version 1.6.31beta07 [July 18, 2017]
- Revised the eXIf chunk in pngtest.png to fix "Bad IFD1 Directory" warning.
-
-Version 1.6.31rc01 [July 19, 2017]
- No changes.
-
-Version 1.6.31rc02 [July 25, 2017]
- Fixed typo in example.c (png_free_image should be png_image_free) (Bug
- report by John Smith)
-
-Version 1.6.31 [July 27, 2017]
- No changes.
-
-Version 1.6.32beta01 [July 31, 2017]
- Avoid possible NULL dereference in png_handle_eXIf when benign_errors
- are allowed. Avoid leaking the input buffer "eXIf_buf".
- Eliminated png_ptr->num_exif member from pngstruct.h and added num_exif
- to arguments for png_get_eXIf() and png_set_eXIf().
- Added calls to png_handle_eXIf(() in pngread.c and png_write_eXIf() in
- pngwrite.c, and made various other fixes to png_write_eXIf().
- Changed name of png_get_eXIF and png_set_eXIf() to png_get_eXIf_1() and
- png_set_eXIf_1(), respectively, to avoid breaking API compatibility
- with libpng-1.6.31.
-
-Version 1.6.32beta02 [August 1, 2017]
- Updated contrib/libtests/pngunknown.c with eXIf chunk.
-
-Version 1.6.32beta03 [August 2, 2017]
- Initialized btoa[] in pngstest.c
- Stop memory leak when returning from png_handle_eXIf() with an error
- (Bug report from the OSS-fuzz project).
-
-Version 1.6.32beta04 [August 2, 2017]
- Replaced local eXIf_buf with info_ptr-eXIf_buf in png_handle_eXIf().
- Update libpng.3 and libpng-manual.txt about eXIf functions.
-
-Version 1.6.32beta05 [August 2, 2017]
- Restored png_get_eXIf() and png_set_eXIf() to maintain API compatibility.
-
-Version 1.6.32beta06 [August 2, 2017]
- Removed png_get_eXIf_1() and png_set_eXIf_1().
-
-Version 1.6.32beta07 [August 3, 2017]
- Check length of all chunks except IDAT against user limit to fix an
- OSS-fuzz issue (Fixes CVE-2017-12652).
-
-Version 1.6.32beta08 [August 3, 2017]
- Check length of IDAT against maximum possible IDAT size, accounting
- for height, rowbytes, interlacing and zlib/deflate overhead.
- Restored png_get_eXIf_1() and png_set_eXIf_1(), because strlen(eXIf_buf)
- does not work (the eXIf chunk data can contain zeroes).
-
-Version 1.6.32beta09 [August 3, 2017]
- Require cmake-2.8.8 in CMakeLists.txt. Revised symlink creation,
- no longer using deprecated cmake LOCATION feature (Clifford Yapp).
- Fixed five-byte error in the calculation of IDAT maximum possible size.
-
-Version 1.6.32beta10 [August 5, 2017]
- Moved chunk-length check into a png_check_chunk_length() private
- function (Suggested by Max Stepin).
- Moved bad pngs from tests to contrib/libtests/crashers
- Moved testing of bad pngs into a separate tests/pngtest-badpngs script
- Added the --xfail (expected FAIL) option to pngtest.c. It writes XFAIL
- in the output but PASS for the libpng test.
- Require cmake-3.0.2 in CMakeLists.txt (Clifford Yapp).
- Fix "const" declaration info_ptr argument to png_get_eXIf_1() and the
- num_exif argument to png_get_eXIf_1() (Github Issue 171).
-
-Version 1.6.32beta11 [August 7, 2017]
- Added "eXIf" to "chunks_to_ignore[]" in png_set_keep_unknown_chunks().
- Added huge_IDAT.png and empty_ancillary_chunks.png to testpngs/crashers.
- Make pngtest --strict, --relax, --xfail options imply -m (multiple).
- Removed unused chunk_name parameter from png_check_chunk_length().
- Relocated setting free_me for eXIf data, to stop an OSS-fuzz leak.
- Initialize profile_header[] in png_handle_iCCP() to fix OSS-fuzz issue.
- Initialize png_ptr->row_buf[0] to 255 in png_read_row() to fix OSS-fuzz UMR.
- Attempt to fix a UMR in png_set_text_2() to fix OSS-fuzz issue.
- Increase minimum zlib stream from 9 to 14 in png_handle_iCCP(), to account
- for the minimum 'deflate' stream, and relocate the test to a point
- after the keyword has been read.
- Check that the eXIf chunk has at least 2 bytes and begins with "II" or "MM".
-
-Version 1.6.32rc01 [August 18, 2017]
- Added a set of "huge_xxxx_chunk.png" files to contrib/testpngs/crashers,
- one for each known chunk type, with length = 2GB-1.
- Check for 0 return from png_get_rowbytes() and added some (size_t) typecasts
- in contrib/pngminus/*.c to stop some Coverity issues (162705, 162706,
- and 162707).
- Renamed chunks in contrib/testpngs/crashers to avoid having files whose
- names differ only in case; this causes problems with some platforms
- (github issue #172).
-
-Version 1.6.32rc02 [August 22, 2017]
- Added contrib/oss-fuzz directory which contains files used by the oss-fuzz
- project (https://github.com/google/oss-fuzz/tree/master/projects/libpng).
-
-Version 1.6.32 [August 24, 2017]
- No changes.
-
-Version 1.6.33beta01 [August 28, 2017]
- Added PNGMINUS_UNUSED macro to contrib/pngminus/p*.c and added missing
- parenthesis in contrib/pngminus/pnm2png.c (bug report by Christian Hesse).
- Fixed off-by-one error in png_do_check_palette_indexes() (Bug report
- by Mick P., Source Forge Issue #269).
-
-Version 1.6.33beta02 [September 3, 2017]
- Initialize png_handler.row_ptr in contrib/oss-fuzz/libpng_read_fuzzer.cc
- to fix shortlived oss-fuzz issue 3234.
- Compute a larger limit on IDAT because some applications write a deflate
- buffer for each row (Bug report by Andrew Church).
- Use current date (DATE) instead of release-date (RDATE) in last
- changed date of contrib/oss-fuzz files.
- Enabled ARM support in CMakeLists.txt (Bernd Kuhls).
-
-Version 1.6.33beta03 [September 14, 2017]
- Fixed incorrect typecast of some arguments to png_malloc() and
- png_calloc() that were png_uint_32 instead of png_alloc_size_t
- (Bug report by "irwir" in Github libpng issue #175).
- Use pnglibconf.h.prebuilt when building for ANDROID with cmake (Github
- issue 162, by rcdailey).
-
-Version 1.6.33rc01 [September 20, 2017]
- Initialize memory allocated by png_inflate to zero, using memset, to
- stop an oss-fuzz "use of uninitialized value" detection in png_set_text_2()
- due to truncated iTXt or zTXt chunk.
- Initialize memory allocated by png_read_buffer to zero, using memset, to
- stop an oss-fuzz "use of uninitialized value" detection in
- png_icc_check_tag_table() due to truncated iCCP chunk.
- Removed a redundant test (suggested by "irwir" in Github issue #180).
-
-Version 1.6.33rc02 [September 23, 2017]
- Added an interlaced version of each file in contrib/pngsuite.
- Relocate new memset() call in pngrutil.c.
- Removed more redundant tests (suggested by "irwir" in Github issue #180).
- Add support for loading images with associated alpha in the Simplified
- API (Samuel Williams).
-
-Version 1.6.33 [September 28, 2017]
- Revert contrib/oss-fuzz/libpng_read_fuzzer.cc to libpng-1.6.32 state.
- Initialize png_handler.row_ptr in contrib/oss-fuzz/libpng_read_fuzzer.cc
- Add end_info structure and png_read_end() to the libpng fuzzer.
-
-Version 1.6.34 [September 29, 2017]
- Removed contrib/pngsuite/i*.png; some of them caused test failures.
-
-Version 1.6.35beta01 [March 6, 2018]
- Restored 21 of the contrib/pngsuite/i*.png, which do not cause test
- failures. Placed the remainder in contrib/pngsuite/interlaced/i*.png.
- Added calls to png_set_*() transforms commonly used by browsers to
- the fuzzer.
- Removed some unnecessary brackets in pngrtran.c
- Fixed miscellaneous typos (Patch by github user "luzpaz").
- Change "ASM C" to "C ASM" in CMakeLists.txt
- Fixed incorrect handling of bKGD chunk in sub-8-bit files (Cosmin)
- Added hardware optimization directories to zip and 7z distributions.
- Fixed incorrect bitmask for options.
- Fixed many spelling typos.
-
-Version 1.6.35beta02 [March 28, 2018]
- Make png_get_iCCP consistent with man page (allow compression-type argument
- to be NULL, bug report by Lenard Szolnoki).
-
-Version 1.6.35 [July 15, 2018]
- Replaced the remaining uses of png_size_t with size_t (Cosmin)
- Fixed the calculation of row_factor in png_check_chunk_length
- (reported by Thuan Pham in SourceForge issue #278)
- Added missing parentheses to a macro definition
- (suggested by "irwir" in GitHub issue #216)
-
-Version 1.6.36 [December 1, 2018]
- Optimized png_do_expand_palette for ARM processors.
- Improved performance by around 10-22% on a recent ARM Chromebook.
- (Contributed by Richard Townsend, ARM Holdings)
- Fixed manipulation of machine-specific optimization options.
- (Contributed by Vicki Pfau)
- Used memcpy instead of manual pointer arithmetic on Intel SSE2.
- (Contributed by Samuel Williams)
- Fixed build errors with MSVC on ARM64.
- (Contributed by Zhijie Liang)
- Fixed detection of libm in CMakeLists.
- (Contributed by Cameron Cawley)
- Fixed incorrect creation of pkg-config file in CMakeLists.
- (Contributed by Kyle Bentley)
- Fixed the CMake build on Windows MSYS by avoiding symlinks.
- Fixed a build warning on OpenBSD.
- (Contributed by Theo Buehler)
- Fixed various typos in comments.
- (Contributed by "luz.paz")
- Raised the minimum required CMake version from 3.0.2 to 3.1.
- Removed yet more of the vestigial support for pre-ANSI C compilers.
- Removed ancient makefiles for ancient systems that have been broken
- across all previous libpng-1.6.x versions.
- Removed the Y2K compliance statement and the export control
- information.
- Applied various code style and documentation fixes.
-
-Version 1.6.37 [April 14, 2019]
- Fixed a use-after-free vulnerability (CVE-2019-7317) in png_image_free.
- Fixed a memory leak in the ARM NEON implementation of png_do_expand_palette.
- Fixed a memory leak in pngtest.c.
- Fixed two vulnerabilities (CVE-2018-14048, CVE-2018-14550) in
- contrib/pngminus; refactor.
- Changed the license of contrib/pngminus to MIT; refresh makefile and docs.
- (Contributed by Willem van Schaik)
- Fixed a typo in the libpng license v2.
- (Contributed by Miguel Ojeda)
- Added makefiles for AddressSanitizer-enabled builds.
- Cleaned up various makefiles.
-
-Send comments/corrections/commendations to png-mng-implement at lists.sf.net.
-Subscription is required; visit
-https://lists.sourceforge.net/lists/listinfo/png-mng-implement
-to subscribe.
diff --git a/3rdparty/libpng/libpng-1.6.37/CMakeLists.txt b/3rdparty/libpng/libpng-1.6.37/CMakeLists.txt
deleted file mode 100644
index 6451fcf..0000000
--- a/3rdparty/libpng/libpng-1.6.37/CMakeLists.txt
+++ /dev/null
@@ -1,931 +0,0 @@
-# CMakeLists.txt
-
-# Copyright (C) 2018 Cosmin Truta
-# Copyright (C) 2007,2009-2018 Glenn Randers-Pehrson
-# Written by Christian Ehrlicher, 2007
-# Revised by Roger Lowman, 2009-2010
-# Revised by Clifford Yapp, 2011-2012,2017
-# Revised by Roger Leigh, 2016
-# Revised by Andreas Franek, 2016
-# Revised by Sam Serrels, 2017
-# Revised by Vadim Barkov, 2017
-# Revised by Vicky Pfau, 2018
-# Revised by Cameron Cawley, 2018
-# Revised by Cosmin Truta, 2018
-# Revised by Kyle Bentley, 2018
-
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-cmake_minimum_required(VERSION 3.1)
-cmake_policy(VERSION 3.1)
-
-project(libpng C ASM)
-enable_testing()
-
-set(PNGLIB_MAJOR 1)
-set(PNGLIB_MINOR 6)
-set(PNGLIB_RELEASE 37)
-set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
-set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})
-
-include(GNUInstallDirs)
-
-# needed packages
-
-# Allow users to specify location of Zlib.
-# Useful if zlib is being built alongside this as a sub-project.
-option(PNG_BUILD_ZLIB "Custom zlib Location, else find_package is used" OFF)
-
-if(NOT PNG_BUILD_ZLIB)
- find_package(ZLIB REQUIRED)
- include_directories(${ZLIB_INCLUDE_DIR})
-endif()
-
-if(UNIX AND NOT APPLE AND NOT BEOS AND NOT HAIKU)
- find_library(M_LIBRARY m)
-else()
- # libm is not needed and/or not available
- set(M_LIBRARY "")
-endif()
-
-# COMMAND LINE OPTIONS
-option(PNG_SHARED "Build shared lib" ON)
-option(PNG_STATIC "Build static lib" ON)
-option(PNG_TESTS "Build libpng tests" ON)
-
-# Many more configuration options could be added here
-option(PNG_FRAMEWORK "Build OS X framework" OFF)
-option(PNG_DEBUG "Build with debug output" OFF)
-option(PNG_HARDWARE_OPTIMIZATIONS "Enable hardware optimizations" ON)
-
-set(PNG_PREFIX "" CACHE STRING "Prefix to add to the API function names")
-set(DFA_XTRA "" CACHE FILEPATH "File containing extra configuration settings")
-
-if(PNG_HARDWARE_OPTIMIZATIONS)
-
-# set definitions and sources for arm
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "^arm" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "^aarch64")
- set(PNG_ARM_NEON_POSSIBLE_VALUES check on off)
- set(PNG_ARM_NEON "check" CACHE STRING "Enable ARM NEON optimizations:
- check: (default) use internal checking code;
- off: disable the optimizations;
- on: turn on unconditionally.")
- set_property(CACHE PNG_ARM_NEON PROPERTY STRINGS
- ${PNG_ARM_NEON_POSSIBLE_VALUES})
- list(FIND PNG_ARM_NEON_POSSIBLE_VALUES ${PNG_ARM_NEON} index)
- if(index EQUAL -1)
- message(FATAL_ERROR
- "PNG_ARM_NEON must be one of [${PNG_ARM_NEON_POSSIBLE_VALUES}]")
- elseif(NOT ${PNG_ARM_NEON} STREQUAL "off")
- set(libpng_arm_sources
- arm/arm_init.c
- arm/filter_neon.S
- arm/filter_neon_intrinsics.c
- arm/palette_neon_intrinsics.c)
-
- if(${PNG_ARM_NEON} STREQUAL "on")
- add_definitions(-DPNG_ARM_NEON_OPT=2)
- elseif(${PNG_ARM_NEON} STREQUAL "check")
- add_definitions(-DPNG_ARM_NEON_CHECK_SUPPORTED)
- endif()
- else()
- add_definitions(-DPNG_ARM_NEON_OPT=0)
- endif()
-endif()
-
-# set definitions and sources for powerpc
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "^powerpc*" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "^ppc64*")
- set(PNG_POWERPC_VSX_POSSIBLE_VALUES on off)
- set(PNG_POWERPC_VSX "on" CACHE STRING "Enable POWERPC VSX optimizations:
- off: disable the optimizations.")
- set_property(CACHE PNG_POWERPC_VSX PROPERTY STRINGS
- ${PNG_POWERPC_VSX_POSSIBLE_VALUES})
- list(FIND PNG_POWERPC_VSX_POSSIBLE_VALUES ${PNG_POWERPC_VSX} index)
- if(index EQUAL -1)
- message(FATAL_ERROR
- "PNG_POWERPC_VSX must be one of [${PNG_POWERPC_VSX_POSSIBLE_VALUES}]")
- elseif(NOT ${PNG_POWERPC_VSX} STREQUAL "off")
- set(libpng_powerpc_sources
- powerpc/powerpc_init.c
- powerpc/filter_vsx_intrinsics.c)
- if(${PNG_POWERPC_VSX} STREQUAL "on")
- add_definitions(-DPNG_POWERPC_VSX_OPT=2)
- endif()
- else()
- add_definitions(-DPNG_POWERPC_VSX_OPT=0)
- endif()
-endif()
-
-# set definitions and sources for intel
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "^i?86" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "^x86_64*")
- set(PNG_INTEL_SSE_POSSIBLE_VALUES on off)
- set(PNG_INTEL_SSE "on" CACHE STRING "Enable INTEL_SSE optimizations:
- off: disable the optimizations")
- set_property(CACHE PNG_INTEL_SSE PROPERTY STRINGS
- ${PNG_INTEL_SSE_POSSIBLE_VALUES})
- list(FIND PNG_INTEL_SSE_POSSIBLE_VALUES ${PNG_INTEL_SSE} index)
- if(index EQUAL -1)
- message(FATAL_ERROR
- "PNG_INTEL_SSE must be one of [${PNG_INTEL_SSE_POSSIBLE_VALUES}]")
- elseif(NOT ${PNG_INTEL_SSE} STREQUAL "off")
- set(libpng_intel_sources
- intel/intel_init.c
- intel/filter_sse2_intrinsics.c)
- if(${PNG_INTEL_SSE} STREQUAL "on")
- add_definitions(-DPNG_INTEL_SSE_OPT=1)
- endif()
- else()
- add_definitions(-DPNG_INTEL_SSE_OPT=0)
- endif()
-endif()
-
-# set definitions and sources for MIPS
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "mipsel*" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "mips64el*")
- set(PNG_MIPS_MSA_POSSIBLE_VALUES on off)
- set(PNG_MIPS_MSA "on" CACHE STRING "Enable MIPS_MSA optimizations:
- off: disable the optimizations")
- set_property(CACHE PNG_MIPS_MSA PROPERTY STRINGS
- ${PNG_MIPS_MSA_POSSIBLE_VALUES})
- list(FIND PNG_MIPS_MSA_POSSIBLE_VALUES ${PNG_MIPS_MSA} index)
- if(index EQUAL -1)
- message(FATAL_ERROR
- "PNG_MIPS_MSA must be one of [${PNG_MIPS_MSA_POSSIBLE_VALUES}]")
- elseif(NOT ${PNG_MIPS_MSA} STREQUAL "off")
- set(libpng_mips_sources
- mips/mips_init.c
- mips/filter_msa_intrinsics.c)
- if(${PNG_MIPS_MSA} STREQUAL "on")
- add_definitions(-DPNG_MIPS_MSA_OPT=2)
- endif()
- else()
- add_definitions(-DPNG_MIPS_MSA_OPT=0)
- endif()
-endif()
-
-else(PNG_HARDWARE_OPTIMIZATIONS)
-
-# set definitions and sources for arm
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "^arm" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "^aarch64")
- add_definitions(-DPNG_ARM_NEON_OPT=0)
-endif()
-
-# set definitions and sources for powerpc
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "^powerpc*" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "^ppc64*")
- add_definitions(-DPNG_POWERPC_VSX_OPT=0)
-endif()
-
-# set definitions and sources for intel
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "^i?86" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "^x86_64*")
- add_definitions(-DPNG_INTEL_SSE_OPT=0)
-endif()
-
-# set definitions and sources for MIPS
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "mipsel*" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "mips64el*")
- add_definitions(-DPNG_MIPS_MSA_OPT=0)
-endif()
-
-endif(PNG_HARDWARE_OPTIMIZATIONS)
-
-# SET LIBNAME
-set(PNG_LIB_NAME png${PNGLIB_MAJOR}${PNGLIB_MINOR})
-
-# to distinguish between debug and release lib
-set(CMAKE_DEBUG_POSTFIX "d")
-
-include(CheckCSourceCompiles)
-option(ld-version-script "Enable linker version script" ON)
-if(ld-version-script AND NOT APPLE)
- # Check if LD supports linker scripts.
- file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map" "VERS_1 {
- global: sym;
- local: *;
-};
-
-VERS_2 {
- global: sym2;
- main;
-} VERS_1;
-")
- set(CMAKE_REQUIRED_FLAGS_SAVE ${CMAKE_REQUIRED_FLAGS})
- set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS} "-Wl,--version-script='${CMAKE_CURRENT_BINARY_DIR}/conftest.map'")
- check_c_source_compiles("void sym(void) {}
-void sym2(void) {}
-int main(void) {return 0;}
-" HAVE_LD_VERSION_SCRIPT)
- if(NOT HAVE_LD_VERSION_SCRIPT)
- set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_SAVE} "-Wl,-M -Wl,${CMAKE_CURRENT_BINARY_DIR}/conftest.map")
- check_c_source_compiles("void sym(void) {}
-void sym2(void) {}
-int main(void) {return 0;}
-" HAVE_SOLARIS_LD_VERSION_SCRIPT)
- endif()
- set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_SAVE})
- file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map")
-endif()
-
-# Find symbol prefix. Likely obsolete and unnecessary with recent
-# toolchains (it's not done in many other projects).
-function(symbol_prefix)
- set(SYMBOL_PREFIX)
-
- execute_process(COMMAND "${CMAKE_C_COMPILER}" "-E" "-"
- INPUT_FILE /dev/null
- OUTPUT_VARIABLE OUT
- RESULT_VARIABLE STATUS)
-
- if(CPP_FAIL)
- message(WARNING "Failed to run the C preprocessor")
- endif()
-
- string(REPLACE "\n" ";" OUT "${OUT}")
- foreach(line ${OUT})
- string(REGEX MATCH "^PREFIX=" found_match "${line}")
- if(found_match)
- string(REGEX REPLACE "^PREFIX=(.*\)" "\\1" prefix "${line}")
- string(REGEX MATCH "__USER_LABEL_PREFIX__" found_match "${prefix}")
- if(found_match)
- string(REGEX REPLACE "(.*)__USER_LABEL_PREFIX__(.*)" "\\1\\2" prefix "${prefix}")
- endif()
- set(SYMBOL_PREFIX "${prefix}")
- endif()
- endforeach()
-
- message(STATUS "Symbol prefix: ${SYMBOL_PREFIX}")
- set(SYMBOL_PREFIX "${SYMBOL_PREFIX}" PARENT_SCOPE)
-endfunction()
-
-if(UNIX)
- symbol_prefix()
-endif()
-
-find_program(AWK NAMES gawk awk)
-
-include_directories(${CMAKE_CURRENT_BINARY_DIR})
-
-if(NOT AWK OR ANDROID)
- # No awk available to generate sources; use pre-built pnglibconf.h
- configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt
- ${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h)
- add_custom_target(genfiles) # Dummy
-else()
- include(CMakeParseArguments)
- # Generate .chk from .out with awk
- # generate_chk(INPUT inputfile OUTPUT outputfile [DEPENDS dep1 [dep2...]])
- function(generate_chk)
- set(options)
- set(oneValueArgs INPUT OUTPUT)
- set(multiValueArgs DEPENDS)
- cmake_parse_arguments(_GC "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
- if(NOT _GC_INPUT)
- message(FATAL_ERROR "generate_chk: Missing INPUT argument")
- endif()
- if(NOT _GC_OUTPUT)
- message(FATAL_ERROR "generate_chk: Missing OUTPUT argument")
- endif()
-
- add_custom_command(OUTPUT "${_GC_OUTPUT}"
- COMMAND "${CMAKE_COMMAND}"
- "-DINPUT=${_GC_INPUT}"
- "-DOUTPUT=${_GC_OUTPUT}"
- -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/genchk.cmake"
- DEPENDS "${_GC_INPUT}" ${_GC_DEPENDS}
- WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
- endfunction()
-
- # Generate .out from .c with awk
- # generate_out(INPUT inputfile OUTPUT outputfile [DEPENDS dep1 [dep2...]])
- function(generate_out)
- set(options)
- set(oneValueArgs INPUT OUTPUT)
- set(multiValueArgs DEPENDS)
- cmake_parse_arguments(_GO "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
- if(NOT _GO_INPUT)
- message(FATAL_ERROR "generate_out: Missing INPUT argument")
- endif()
- if(NOT _GO_OUTPUT)
- message(FATAL_ERROR "generate_out: Missing OUTPUT argument")
- endif()
-
- add_custom_command(OUTPUT "${_GO_OUTPUT}"
- COMMAND "${CMAKE_COMMAND}"
- "-DINPUT=${_GO_INPUT}"
- "-DOUTPUT=${_GO_OUTPUT}"
- -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/genout.cmake"
- DEPENDS "${_GO_INPUT}" ${_GO_DEPENDS}
- WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
- endfunction()
-
- # Generate specific source file with awk
- # generate_source(OUTPUT outputfile [DEPENDS dep1 [dep2...]])
- function(generate_source)
- set(options)
- set(oneValueArgs OUTPUT)
- set(multiValueArgs DEPENDS)
- cmake_parse_arguments(_GSO "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
- if(NOT _GSO_OUTPUT)
- message(FATAL_ERROR "generate_source: Missing OUTPUT argument")
- endif()
-
- add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${_GSO_OUTPUT}"
- COMMAND "${CMAKE_COMMAND}"
- "-DOUTPUT=${_GSO_OUTPUT}"
- -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/gensrc.cmake"
- DEPENDS ${_GSO_DEPENDS}
- WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
- endfunction()
-
- # Copy file
- function(generate_copy source destination)
- add_custom_command(OUTPUT "${destination}"
- COMMAND "${CMAKE_COMMAND}" -E remove "${destination}"
- COMMAND "${CMAKE_COMMAND}" -E copy "${source}"
- "${destination}"
- DEPENDS "${source}")
- endfunction()
-
- # Generate scripts/pnglibconf.h
- generate_source(OUTPUT "scripts/pnglibconf.c"
- DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.dfa"
- "${CMAKE_CURRENT_SOURCE_DIR}/scripts/options.awk"
- "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h")
-
- # Generate pnglibconf.c
- generate_source(OUTPUT "pnglibconf.c"
- DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.dfa"
- "${CMAKE_CURRENT_SOURCE_DIR}/scripts/options.awk"
- "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h")
-
- if(PNG_PREFIX)
- set(PNGLIBCONF_H_EXTRA_DEPENDS
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out"
- "${CMAKE_CURRENT_SOURCE_DIR}/scripts/macro.lst")
- set(PNGPREFIX_H_EXTRA_DEPENDS
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out")
- endif()
-
- generate_out(INPUT "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.c"
- OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out")
-
- # Generate pnglibconf.h
- generate_source(OUTPUT "pnglibconf.h"
- DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out"
- ${PNGLIBCONF_H_EXTRA_DEPENDS})
-
- generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/intprefix.c"
- OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out"
- DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h")
-
- generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/prefix.c"
- OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out"
- DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/png.h"
- "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h"
- "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out")
-
- # Generate pngprefix.h
- generate_source(OUTPUT "pngprefix.h"
- DEPENDS ${PNGPREFIX_H_EXTRA_DEPENDS})
-
- generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/sym.c"
- OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out"
- DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h")
-
- generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/symbols.c"
- OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out"
- DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/png.h"
- "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h"
- "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt")
-
- generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/vers.c"
- OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out"
- DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/png.h"
- "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h"
- "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h")
-
- generate_chk(INPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out"
- OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk"
- DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/scripts/checksym.awk"
- "${CMAKE_CURRENT_SOURCE_DIR}/scripts/symbols.def")
-
- add_custom_target(symbol-check DEPENDS
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk")
-
- generate_copy("${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out"
- "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym")
- generate_copy("${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out"
- "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers")
-
- add_custom_target(genvers DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers")
- add_custom_target(gensym DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym")
-
- add_custom_target("genprebuilt"
- COMMAND "${CMAKE_COMMAND}"
- "-DOUTPUT=scripts/pnglibconf.h.prebuilt"
- -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/gensrc.cmake"
- WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
-
- # A single target handles generation of all generated files. If
- # they are depended upon separately by multiple targets, this
- # confuses parallel make (it would require a separate top-level
- # target for each file to track the dependencies properly).
- add_custom_target(genfiles DEPENDS
- "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym"
- "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers"
- "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.c"
- "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h"
- "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out"
- "${CMAKE_CURRENT_BINARY_DIR}/pngprefix.h"
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out"
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/pnglibconf.c"
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out"
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out"
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk"
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out"
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out")
-endif(NOT AWK OR ANDROID)
-
-# OUR SOURCES
-set(libpng_public_hdrs
- png.h
- pngconf.h
- "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h"
-)
-set(libpng_private_hdrs
- pngpriv.h
- pngdebug.h
- pnginfo.h
- pngstruct.h
-)
-if(AWK AND NOT ANDROID)
- list(APPEND libpng_private_hdrs "${CMAKE_CURRENT_BINARY_DIR}/pngprefix.h")
-endif()
-set(libpng_sources
- ${libpng_public_hdrs}
- ${libpng_private_hdrs}
- png.c
- pngerror.c
- pngget.c
- pngmem.c
- pngpread.c
- pngread.c
- pngrio.c
- pngrtran.c
- pngrutil.c
- pngset.c
- pngtrans.c
- pngwio.c
- pngwrite.c
- pngwtran.c
- pngwutil.c
- ${libpng_arm_sources}
- ${libpng_intel_sources}
- ${libpng_mips_sources}
- ${libpng_powerpc_sources}
-)
-set(pngtest_sources
- pngtest.c
-)
-set(pngvalid_sources
- contrib/libtests/pngvalid.c
-)
-set(pngstest_sources
- contrib/libtests/pngstest.c
-)
-set(pngunknown_sources
- contrib/libtests/pngunknown.c
-)
-set(pngimage_sources
- contrib/libtests/pngimage.c
-)
-set(pngfix_sources
- contrib/tools/pngfix.c
-)
-set(png_fix_itxt_sources
- contrib/tools/png-fix-itxt.c
-)
-
-if(MSVC)
- add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
-endif()
-
-if(PNG_DEBUG)
- add_definitions(-DPNG_DEBUG)
-endif()
-
-# NOW BUILD OUR TARGET
-include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${ZLIB_INCLUDE_DIR})
-
-unset(PNG_LIB_TARGETS)
-
-if(PNG_SHARED)
- add_library(png SHARED ${libpng_sources})
- set(PNG_LIB_TARGETS png)
- set_target_properties(png PROPERTIES OUTPUT_NAME ${PNG_LIB_NAME})
- add_dependencies(png genfiles)
- if(MSVC)
- # msvc does not append 'lib' - do it here to have consistent name
- set_target_properties(png PROPERTIES PREFIX "lib")
- set_target_properties(png PROPERTIES IMPORT_PREFIX "lib")
- endif()
- target_link_libraries(png ${ZLIB_LIBRARY} ${M_LIBRARY})
-
- if(UNIX AND AWK)
- if(HAVE_LD_VERSION_SCRIPT)
- set_target_properties(png PROPERTIES LINK_FLAGS
- "-Wl,--version-script='${CMAKE_CURRENT_BINARY_DIR}/libpng.vers'")
- elseif(HAVE_SOLARIS_LD_VERSION_SCRIPT)
- set_target_properties(png PROPERTIES LINK_FLAGS
- "-Wl,-M -Wl,'${CMAKE_CURRENT_BINARY_DIR}/libpng.vers'")
- endif()
- endif()
-endif()
-
-if(PNG_STATIC)
- # does not work without changing name
- set(PNG_LIB_NAME_STATIC png_static)
- add_library(png_static STATIC ${libpng_sources})
- add_dependencies(png_static genfiles)
- # MSVC doesn't use a different file extension for shared vs. static
- # libs. We are able to change OUTPUT_NAME to remove the _static
- # for all other platforms.
- if(NOT MSVC)
- set_target_properties(png_static PROPERTIES
- OUTPUT_NAME "${PNG_LIB_NAME}"
- CLEAN_DIRECT_OUTPUT 1)
- else()
- set_target_properties(png_static PROPERTIES
- OUTPUT_NAME "${PNG_LIB_NAME}_static"
- CLEAN_DIRECT_OUTPUT 1)
- endif()
- list(APPEND PNG_LIB_TARGETS png_static)
- if(MSVC)
- # msvc does not append 'lib' - do it here to have consistent name
- set_target_properties(png_static PROPERTIES PREFIX "lib")
- endif()
- target_link_libraries(png_static ${ZLIB_LIBRARY} ${M_LIBRARY})
-endif()
-
-if(PNG_FRAMEWORK)
- set(PNG_LIB_NAME_FRAMEWORK png_framework)
- add_library(png_framework SHARED ${libpng_sources})
- add_dependencies(png_framework genfiles)
- list(APPEND PNG_LIB_TARGETS png_framework)
- set_target_properties(png_framework PROPERTIES
- FRAMEWORK TRUE
- FRAMEWORK_VERSION ${PNGLIB_VERSION}
- MACOSX_FRAMEWORK_SHORT_VERSION_STRING ${PNGLIB_MAJOR}.${PNGLIB_MINOR}
- MACOSX_FRAMEWORK_BUNDLE_VERSION ${PNGLIB_VERSION}
- MACOSX_FRAMEWORK_IDENTIFIER org.libpng.libpng
- XCODE_ATTRIBUTE_INSTALL_PATH "@rpath"
- PUBLIC_HEADER "${libpng_public_hdrs}"
- OUTPUT_NAME png)
- target_link_libraries(png_framework ${ZLIB_LIBRARY} ${M_LIBRARY})
-endif()
-
-if(NOT PNG_LIB_TARGETS)
- message(SEND_ERROR
- "No library variant selected to build. "
- "Please enable at least one of the following options: "
- "PNG_STATIC, PNG_SHARED, PNG_FRAMEWORK")
-endif()
-
-if(PNG_SHARED AND WIN32)
- set_target_properties(png PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL)
-endif()
-
-function(png_add_test)
- set(options)
- set(oneValueArgs NAME COMMAND)
- set(multiValueArgs OPTIONS FILES)
- cmake_parse_arguments(_PAT "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
-
- if(NOT _PAT_NAME)
- message(FATAL_ERROR "png_add_test: Missing NAME argument")
- endif()
- if(NOT _PAT_COMMAND)
- message(FATAL_ERROR "png_add_test: Missing COMMAND argument")
- endif()
-
- set(TEST_OPTIONS "${_PAT_OPTIONS}")
- set(TEST_FILES "${_PAT_FILES}")
-
- configure_file("${CMAKE_CURRENT_SOURCE_DIR}/scripts/test.cmake.in"
- "${CMAKE_CURRENT_BINARY_DIR}/tests/${_PAT_NAME}.cmake" @ONLY)
- add_test(NAME "${_PAT_NAME}"
- COMMAND "${CMAKE_COMMAND}"
- "-DLIBPNG=$<TARGET_FILE:png>"
- "-DTEST_COMMAND=$<TARGET_FILE:${_PAT_COMMAND}>"
- -P "${CMAKE_CURRENT_BINARY_DIR}/tests/${_PAT_NAME}.cmake")
-endfunction()
-
-if(PNG_TESTS AND PNG_SHARED)
- # Find test PNG files by globbing, but sort lists to ensure
- # consistency between different filesystems.
- file(GLOB PNGSUITE_PNGS "${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/*.png")
- list(SORT PNGSUITE_PNGS)
- file(GLOB TEST_PNGS "${CMAKE_CURRENT_SOURCE_DIR}/contrib/testpngs/*.png")
- list(SORT TEST_PNGS)
-
- set(PNGTEST_PNG "${CMAKE_CURRENT_SOURCE_DIR}/pngtest.png")
-
- add_executable(pngtest ${pngtest_sources})
- target_link_libraries(pngtest png)
-
- png_add_test(NAME pngtest COMMAND pngtest FILES "${PNGTEST_PNG}")
-
- add_executable(pngvalid ${pngvalid_sources})
- target_link_libraries(pngvalid png)
-
- png_add_test(NAME pngvalid-gamma-16-to-8
- COMMAND pngvalid OPTIONS --gamma-16-to-8)
- png_add_test(NAME pngvalid-gamma-alpha-mode
- COMMAND pngvalid OPTIONS --gamma-alpha-mode)
- png_add_test(NAME pngvalid-gamma-background
- COMMAND pngvalid OPTIONS --gamma-background)
- png_add_test(NAME pngvalid-gamma-expand16-alpha-mode
- COMMAND pngvalid OPTIONS --gamma-alpha-mode --expand16)
- png_add_test(NAME pngvalid-gamma-expand16-background
- COMMAND pngvalid OPTIONS --gamma-background --expand16)
- png_add_test(NAME pngvalid-gamma-expand16-transform
- COMMAND pngvalid OPTIONS --gamma-transform --expand16)
- png_add_test(NAME pngvalid-gamma-sbit
- COMMAND pngvalid OPTIONS --gamma-sbit)
- png_add_test(NAME pngvalid-gamma-threshold
- COMMAND pngvalid OPTIONS --gamma-threshold)
- png_add_test(NAME pngvalid-gamma-transform
- COMMAND pngvalid OPTIONS --gamma-transform)
- png_add_test(NAME pngvalid-progressive-interlace-standard
- COMMAND pngvalid OPTIONS --standard --progressive-read --interlace)
- png_add_test(NAME pngvalid-progressive-size
- COMMAND pngvalid OPTIONS --size --progressive-read)
- png_add_test(NAME pngvalid-progressive-standard
- COMMAND pngvalid OPTIONS --standard --progressive-read)
- png_add_test(NAME pngvalid-standard
- COMMAND pngvalid OPTIONS --standard)
- png_add_test(NAME pngvalid-transform
- COMMAND pngvalid OPTIONS --transform)
-
- add_executable(pngstest ${pngstest_sources})
- target_link_libraries(pngstest png)
-
- foreach(gamma_type 1.8 linear none sRGB)
- foreach(alpha_type none alpha)
- set(PNGSTEST_FILES)
- foreach(test_png ${TEST_PNGS})
- string(REGEX MATCH ".*-linear[-.].*" TEST_PNG_LINEAR "${test_png}")
- string(REGEX MATCH ".*-sRGB[-.].*" TEST_PNG_SRGB "${test_png}")
- string(REGEX MATCH ".*-1.8[-.].*" TEST_PNG_G18 "${test_png}")
- string(REGEX MATCH ".*-alpha-.*" TEST_PNG_ALPHA "${test_png}")
-
- set(TEST_PNG_VALID TRUE)
-
- if(TEST_PNG_ALPHA)
- if(NOT "${alpha_type}" STREQUAL "alpha")
- set(TEST_PNG_VALID FALSE)
- endif()
- else()
- if("${alpha_type}" STREQUAL "alpha")
- set(TEST_PNG_VALID FALSE)
- endif()
- endif()
-
- if(TEST_PNG_LINEAR)
- if(NOT "${gamma_type}" STREQUAL "linear")
- set(TEST_PNG_VALID FALSE)
- endif()
- elseif(TEST_PNG_SRGB)
- if(NOT "${gamma_type}" STREQUAL "sRGB")
- set(TEST_PNG_VALID FALSE)
- endif()
- elseif(TEST_PNG_G18)
- if(NOT "${gamma_type}" STREQUAL "1.8")
- set(TEST_PNG_VALID FALSE)
- endif()
- else()
- if(NOT "${gamma_type}" STREQUAL "none")
- set(TEST_PNG_VALID FALSE)
- endif()
- endif()
-
- if(TEST_PNG_VALID)
- list(APPEND PNGSTEST_FILES "${test_png}")
- endif()
- endforeach()
- # Should already be sorted, but sort anyway to be certain.
- list(SORT PNGSTEST_FILES)
- png_add_test(NAME pngstest-${gamma_type}-${alpha_type}
- COMMAND pngstest
- OPTIONS --tmpfile "${gamma_type}-${alpha_type}-" --log
- FILES ${PNGSTEST_FILES})
- endforeach()
- endforeach()
-
- add_executable(pngunknown ${pngunknown_sources})
- target_link_libraries(pngunknown png)
-
- png_add_test(NAME pngunknown-discard COMMAND pngunknown OPTIONS --strict default=discard FILES "${PNGTEST_PNG}")
- png_add_test(NAME pngunknown-IDAT COMMAND pngunknown OPTIONS --strict default=discard IDAT=save FILES "${PNGTEST_PNG}")
- png_add_test(NAME pngunknown-if-safe COMMAND pngunknown OPTIONS --strict default=if-safe FILES "${PNGTEST_PNG}")
- png_add_test(NAME pngunknown-sAPI COMMAND pngunknown OPTIONS --strict bKGD=save cHRM=save gAMA=save all=discard iCCP=save sBIT=save sRGB=save FILES "${PNGTEST_PNG}")
- png_add_test(NAME pngunknown-save COMMAND pngunknown OPTIONS --strict default=save FILES "${PNGTEST_PNG}")
- png_add_test(NAME pngunknown-sTER COMMAND pngunknown OPTIONS --strict sTER=if-safe FILES "${PNGTEST_PNG}")
- png_add_test(NAME pngunknown-vpAg COMMAND pngunknown OPTIONS --strict vpAg=if-safe FILES "${PNGTEST_PNG}")
-
- add_executable(pngimage ${pngimage_sources})
- target_link_libraries(pngimage png)
-
- png_add_test(NAME pngimage-quick COMMAND pngimage OPTIONS --list-combos --log FILES ${PNGSUITE_PNGS})
- png_add_test(NAME pngimage-full COMMAND pngimage OPTIONS --exhaustive --list-combos --log FILES ${PNGSUITE_PNGS})
-endif()
-
-if(PNG_SHARED)
- add_executable(pngfix ${pngfix_sources})
- target_link_libraries(pngfix png)
- set(PNG_BIN_TARGETS pngfix)
-
- add_executable(png-fix-itxt ${png_fix_itxt_sources})
- target_link_libraries(png-fix-itxt ${ZLIB_LIBRARY} ${M_LIBRARY})
- list(APPEND PNG_BIN_TARGETS png-fix-itxt)
-endif()
-
-# Set a variable with CMake code which:
-# Creates a symlink from src to dest (if possible) or alternatively
-# copies if different.
-include(CMakeParseArguments)
-
-function(create_symlink DEST_FILE)
-
- cmake_parse_arguments(S "" "FILE;TARGET" "" ${ARGN})
-
- if(NOT S_TARGET AND NOT S_FILE)
- message(FATAL_ERROR "create_symlink: Missing TARGET or FILE argument")
- endif()
-
- if(S_TARGET AND S_FILE)
- message(FATAL_ERROR "create_symlink: Both source file ${S_FILE} and build target ${S_TARGET} arguments are present; can only have one.")
- endif()
-
- if(S_FILE)
- # If we don't need to symlink something that's coming from a build target,
- # we can go ahead and symlink/copy at configure time.
- if(CMAKE_HOST_WIN32 AND NOT CYGWIN)
- execute_process(
- COMMAND "${CMAKE_COMMAND}" -E copy_if_different ${S_FILE} ${DEST_FILE}
- WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
- else()
- execute_process(
- COMMAND ${CMAKE_COMMAND} -E create_symlink ${S_FILE} ${DEST_FILE}
- WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
- endif()
- endif()
-
- if(S_TARGET)
- # We need to use generator expressions, which can be a bit tricky, so for
- # simplicity make the symlink a POST_BUILD step and use the TARGET
- # signature of add_custom_command.
- if(CMAKE_HOST_WIN32 AND NOT CYGWIN)
- add_custom_command(TARGET ${S_TARGET} POST_BUILD
- COMMAND "${CMAKE_COMMAND}" -E copy_if_different $<TARGET_LINKER_FILE_NAME:${S_TARGET}> $<TARGET_LINKER_FILE_DIR:${S_TARGET}>/${DEST_FILE})
- else()
- add_custom_command(TARGET ${S_TARGET} POST_BUILD
- COMMAND "${CMAKE_COMMAND}" -E create_symlink $<TARGET_LINKER_FILE_NAME:${S_TARGET}> $<TARGET_LINKER_FILE_DIR:${S_TARGET}>/${DEST_FILE})
- endif()
- endif()
-
-endfunction()
-
-# Create source generation scripts.
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/genchk.cmake.in
- ${CMAKE_CURRENT_BINARY_DIR}/scripts/genchk.cmake @ONLY)
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/genout.cmake.in
- ${CMAKE_CURRENT_BINARY_DIR}/scripts/genout.cmake @ONLY)
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/gensrc.cmake.in
- ${CMAKE_CURRENT_BINARY_DIR}/scripts/gensrc.cmake @ONLY)
-
-# libpng is a library so default to 'lib'
-if(NOT DEFINED CMAKE_INSTALL_LIBDIR)
- set(CMAKE_INSTALL_LIBDIR lib)
-endif()
-
-# CREATE PKGCONFIG FILES
-# We use the same files like ./configure, so we have to set its vars.
-# Only do this on Windows for Cygwin - the files don't make much sense outside
-# of a UNIX look-alike.
-if(NOT WIN32 OR CYGWIN OR MINGW)
- set(prefix ${CMAKE_INSTALL_PREFIX})
- set(exec_prefix ${CMAKE_INSTALL_PREFIX})
- set(libdir ${CMAKE_INSTALL_FULL_LIBDIR})
- set(includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR})
- set(LIBS "-lz -lm")
- configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in
- ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc @ONLY)
- create_symlink(libpng.pc FILE ${PNGLIB_NAME}.pc)
-
- configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in
- ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config @ONLY)
- create_symlink(libpng-config FILE ${PNGLIB_NAME}-config)
-endif()
-
-# SET UP LINKS
-if(PNG_SHARED)
- set_target_properties(png PROPERTIES
-# VERSION 16.${PNGLIB_RELEASE}.1.6.37
- VERSION 16.${PNGLIB_RELEASE}.0
- SOVERSION 16
- CLEAN_DIRECT_OUTPUT 1)
-endif()
-
-# INSTALL
-if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL)
- install(TARGETS ${PNG_LIB_TARGETS}
- EXPORT libpng
- RUNTIME DESTINATION bin
- LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
- ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
- FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR})
-
- if(PNG_SHARED)
- # Create a symlink for libpng.dll.a => libpng16.dll.a on Cygwin
- if(CYGWIN OR MINGW)
- create_symlink(libpng${CMAKE_IMPORT_LIBRARY_SUFFIX} TARGET png)
- install(FILES $<TARGET_LINKER_FILE_DIR:png>/libpng${CMAKE_IMPORT_LIBRARY_SUFFIX}
- DESTINATION ${CMAKE_INSTALL_LIBDIR})
- endif()
-
- if(NOT WIN32)
- create_symlink(libpng${CMAKE_SHARED_LIBRARY_SUFFIX} TARGET png)
- install(FILES $<TARGET_LINKER_FILE_DIR:png>/libpng${CMAKE_SHARED_LIBRARY_SUFFIX}
- DESTINATION ${CMAKE_INSTALL_LIBDIR})
- endif()
- endif()
-
- if(PNG_STATIC)
- if(NOT WIN32 OR CYGWIN OR MINGW)
- create_symlink(libpng${CMAKE_STATIC_LIBRARY_SUFFIX} TARGET png_static)
- install(FILES $<TARGET_LINKER_FILE_DIR:png_static>/libpng${CMAKE_STATIC_LIBRARY_SUFFIX}
- DESTINATION ${CMAKE_INSTALL_LIBDIR})
- endif()
- endif()
-endif()
-
-if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL)
- install(FILES ${libpng_public_hdrs} DESTINATION include)
- install(FILES ${libpng_public_hdrs} DESTINATION include/${PNGLIB_NAME})
-endif()
-if(NOT SKIP_INSTALL_EXECUTABLES AND NOT SKIP_INSTALL_ALL)
- if(NOT WIN32 OR CYGWIN OR MINGW)
- install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config DESTINATION bin)
- install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config DESTINATION bin)
- endif()
-endif()
-
-if(NOT SKIP_INSTALL_PROGRAMS AND NOT SKIP_INSTALL_ALL)
- install(TARGETS ${PNG_BIN_TARGETS}
- RUNTIME DESTINATION bin)
-endif()
-
-if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL)
- # Install man pages
- if(NOT PNG_MAN_DIR)
- set(PNG_MAN_DIR "share/man")
- endif()
- install(FILES libpng.3 libpngpf.3 DESTINATION ${PNG_MAN_DIR}/man3)
- install(FILES png.5 DESTINATION ${PNG_MAN_DIR}/man5)
- # Install pkg-config files
- if(NOT CMAKE_HOST_WIN32 OR CYGWIN OR MINGW)
- install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc
- DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
- install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config
- DESTINATION bin)
- install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc
- DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
- install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
- DESTINATION bin)
- endif()
-endif()
-
-# Create an export file that CMake users can include() to import our targets.
-if(NOT SKIP_INSTALL_EXPORT AND NOT SKIP_INSTALL_ALL)
- install(EXPORT libpng DESTINATION lib/libpng FILE lib${PNG_LIB_NAME}.cmake)
-endif()
-
-# what's with libpng-manual.txt and all the extra files?
-
-# UNINSTALL
-# do we need this?
-
-# DIST
-# do we need this?
-
-# to create msvc import lib for mingw compiled shared lib
-# pexports libpng.dll > libpng.def
-# lib /def:libpng.def /machine:x86
diff --git a/3rdparty/libpng/libpng-1.6.37/INSTALL b/3rdparty/libpng/libpng-1.6.37/INSTALL
deleted file mode 100644
index 4c17022..0000000
--- a/3rdparty/libpng/libpng-1.6.37/INSTALL
+++ /dev/null
@@ -1,465 +0,0 @@
-
- Installing libpng
-
-Contents
-
- I. Simple installation
- II. Rebuilding the configure scripts
- III. Using scripts/makefile*
- IV. Using cmake
- V. Directory structure
- VI. Building with project files
- VII. Building with makefiles
- VIII. Configuring libpng for 16-bit platforms
- IX. Configuring for DOS
- X. Configuring for Medium Model
- XI. Prepending a prefix to exported symbols
- XII. Configuring for compiler xxx:
- XIII. Removing unwanted object code
- XIV. Enabling or disabling hardware optimizations
- XV. Changes to the build and configuration of libpng in libpng-1.5.x
- XVI. Setjmp/longjmp issues
- XVII. Common linking failures
- XVIII. Other sources of information about libpng
-
-I. Simple installation
-
-On Unix/Linux and similar systems, you can simply type
-
- ./configure [--prefix=/path]
- make check
- make install
-
-and ignore the rest of this document. "/path" is the path to the directory
-where you want to install the libpng "lib", "include", and "bin"
-subdirectories.
-
-If you downloaded a GIT clone, you will need to run ./autogen.sh before
-running ./configure, to create "configure" and "Makefile.in" which are
-not included in the GIT repository.
-
-Note that "configure" is only included in the "*.tar" distributions and not
-in the "*.zip" or "*.7z" distributions. If you downloaded one of those
-distributions, see "Building with project files" or "Building with makefiles",
-below.
-
-II. Rebuilding the configure scripts
-
-If configure does not work on your system, or if you have a need to
-change configure.ac or Makefile.am, and you have a reasonably
-up-to-date set of tools, running ./autogen.sh in a git clone before
-running ./configure may fix the problem. To be really sure that you
-aren't using any of the included pre-built scripts, especially if you
-are building from a tar distribution instead of a git distribution,
-do this:
-
- ./configure --enable-maintainer-mode
- make maintainer-clean
- ./autogen.sh --maintainer --clean
- ./autogen.sh --maintainer
- ./configure [--prefix=/path] [other options]
- make
- make install
- make check
-
-III. Using scripts/makefile*
-
-Instead, you can use one of the custom-built makefiles in the
-"scripts" directory
-
- cp scripts/pnglibconf.h.prebuilt pnglibconf.h
- cp scripts/makefile.system makefile
- make test
- make install
-
-The files that are presently available in the scripts directory
-are listed and described in scripts/README.txt.
-
-Or you can use one of the "projects" in the "projects" directory.
-
-Before installing libpng, you must first install zlib, if it
-is not already on your system. zlib can usually be found
-wherever you got libpng; otherwise go to https://zlib.net/. You can
-place zlib in the same directory as libpng or in another directory.
-
-If your system already has a preinstalled zlib you will still need
-to have access to the zlib.h and zconf.h include files that
-correspond to the version of zlib that's installed.
-
-If you wish to test with a particular zlib that is not first in the
-standard library search path, put ZLIBLIB, ZLIBINC, CPPFLAGS, LDFLAGS,
-and LD_LIBRARY_PATH in your environment before running "make test"
-or "make distcheck":
-
- ZLIBLIB=/path/to/lib export ZLIBLIB
- ZLIBINC=/path/to/include export ZLIBINC
- CPPFLAGS="-I$ZLIBINC" export CPPFLAGS
- LDFLAGS="-L$ZLIBLIB" export LDFLAGS
- LD_LIBRARY_PATH="$ZLIBLIB:$LD_LIBRARY_PATH" export LD_LIBRARY_PATH
-
-If you are using one of the makefile scripts, put ZLIBLIB and ZLIBINC
-in your environment and type
-
- make ZLIBLIB=$ZLIBLIB ZLIBINC=$ZLIBINC test
-
-IV. Using cmake
-
-If you want to use "cmake" (see www.cmake.org), type
-
- cmake . -DCMAKE_INSTALL_PREFIX=/path
- make
- make install
-
-As when using the simple configure method described above, "/path" points to
-the installation directory where you want to put the libpng "lib", "include",
-and "bin" subdirectories.
-
-V. Directory structure
-
-You can rename the directories that you downloaded (they
-might be called "libpng-x.y.z" or "libpngNN" and "zlib-1.2.8"
-or "zlib128") so that you have directories called "zlib" and "libpng".
-
-Your directory structure should look like this:
-
- .. (the parent directory)
- libpng (this directory)
- INSTALL (this file)
- README
- *.h, *.c => libpng source files
- CMakeLists.txt => "cmake" script
- configuration files:
- configure.ac, configure, Makefile.am, Makefile.in,
- autogen.sh, config.guess, ltmain.sh, missing, libpng.pc.in,
- libpng-config.in, aclocal.m4, config.h.in, config.sub,
- depcomp, install-sh, mkinstalldirs, test-pngtest.sh
- contrib
- arm-neon, conftest, examples, gregbook, libtests, pngminim,
- pngminus, pngsuite, tools, visupng
- projects
- cbuilder5, owatcom, visualc71, vstudio, xcode
- scripts
- makefile.*
- *.def (module definition files)
- etc.
- pngtest.png
- etc.
- zlib
- README, *.h, *.c contrib, etc.
-
-If the line endings in the files look funny, you may wish to get the other
-distribution of libpng. It is available in both tar.gz (UNIX style line
-endings) and zip (DOS style line endings) formats.
-
-VI. Building with project files
-
-If you are building libpng with MSVC, you can enter the
-libpng projects\visualc71 or vstudio directory and follow the instructions
-in README.txt.
-
-Otherwise enter the zlib directory and follow the instructions in zlib/README,
-then come back here and run "configure" or choose the appropriate
-makefile.sys in the scripts directory.
-
-VII. Building with makefiles
-
-Copy the file (or files) that you need from the
-scripts directory into this directory, for example
-
-MSDOS example:
-
- copy scripts\makefile.msc makefile
- copy scripts\pnglibconf.h.prebuilt pnglibconf.h
-
-UNIX example:
-
- cp scripts/makefile.std makefile
- cp scripts/pnglibconf.h.prebuilt pnglibconf.h
-
-Read the makefile to see if you need to change any source or
-target directories to match your preferences.
-
-Then read pnglibconf.dfa to see if you want to make any configuration
-changes.
-
-Then just run "make" which will create the libpng library in
-this directory and "make test" which will run a quick test that reads
-the "pngtest.png" file and writes a "pngout.png" file that should be
-identical to it. Look for "9782 zero samples" in the output of the
-test. For more confidence, you can run another test by typing
-"pngtest pngnow.png" and looking for "289 zero samples" in the output.
-Also, you can run "pngtest -m contrib/pngsuite/*.png" and compare
-your output with the result shown in contrib/pngsuite/README.
-
-Most of the makefiles will allow you to run "make install" to
-put the library in its final resting place (if you want to
-do that, run "make install" in the zlib directory first if necessary).
-Some also allow you to run "make test-installed" after you have
-run "make install".
-
-VIII. Configuring libpng for 16-bit platforms
-
-You will want to look into zconf.h to tell zlib (and thus libpng) that
-it cannot allocate more than 64K at a time. Even if you can, the memory
-won't be accessible. So limit zlib and libpng to 64K by defining MAXSEG_64K.
-
-IX. Configuring for DOS
-
-For DOS users who only have access to the lower 640K, you will
-have to limit zlib's memory usage via a png_set_compression_mem_level()
-call. See zlib.h or zconf.h in the zlib library for more information.
-
-X. Configuring for Medium Model
-
-Libpng's support for medium model has been tested on most of the popular
-compilers. Make sure MAXSEG_64K gets defined, USE_FAR_KEYWORD gets
-defined, and FAR gets defined to far in pngconf.h, and you should be
-all set. Everything in the library (except for zlib's structure) is
-expecting far data. You must use the typedefs with the p or pp on
-the end for pointers (or at least look at them and be careful). Make
-note that the rows of data are defined as png_bytepp, which is
-an "unsigned char far * far *".
-
-XI. Prepending a prefix to exported symbols
-
-Starting with libpng-1.6.0, you can configure libpng (when using the
-"configure" script) to prefix all exported symbols by means of the
-configuration option "--with-libpng-prefix=FOO_", where FOO_ can be any
-string beginning with a letter and containing only uppercase
-and lowercase letters, digits, and the underscore (i.e., a C language
-identifier). This creates a set of macros in pnglibconf.h, so this is
-transparent to applications; their function calls get transformed by
-the macros to use the modified names.
-
-XII. Configuring for compiler xxx:
-
-All includes for libpng are in pngconf.h. If you need to add, change
-or delete an include, this is the place to do it.
-The includes that are not needed outside libpng are placed in pngpriv.h,
-which is only used by the routines inside libpng itself.
-The files in libpng proper only include pngpriv.h and png.h, which
-in turn includes pngconf.h and, as of libpng-1.5.0, pnglibconf.h.
-As of libpng-1.5.0, pngpriv.h also includes three other private header
-files, pngstruct.h, pnginfo.h, and pngdebug.h, which contain material
-that previously appeared in the public headers.
-
-XIII. Removing unwanted object code
-
-There are a bunch of #define's in pngconf.h that control what parts of
-libpng are compiled. All the defines end in _SUPPORTED. If you are
-never going to use a capability, you can change the #define to #undef
-before recompiling libpng and save yourself code and data space, or
-you can turn off individual capabilities with defines that begin with
-"PNG_NO_".
-
-In libpng-1.5.0 and later, the #define's are in pnglibconf.h instead.
-
-You can also turn all of the transforms and ancillary chunk capabilities
-off en masse with compiler directives that define
-PNG_NO_READ[or WRITE]_TRANSFORMS, or PNG_NO_READ[or WRITE]_ANCILLARY_CHUNKS,
-or all four, along with directives to turn on any of the capabilities that
-you do want. The PNG_NO_READ[or WRITE]_TRANSFORMS directives disable the
-extra transformations but still leave the library fully capable of reading
-and writing PNG files with all known public chunks. Use of the
-PNG_NO_READ[or WRITE]_ANCILLARY_CHUNKS directive produces a library
-that is incapable of reading or writing ancillary chunks. If you are
-not using the progressive reading capability, you can turn that off
-with PNG_NO_PROGRESSIVE_READ (don't confuse this with the INTERLACING
-capability, which you'll still have).
-
-All the reading and writing specific code are in separate files, so the
-linker should only grab the files it needs. However, if you want to
-make sure, or if you are building a stand alone library, all the
-reading files start with "pngr" and all the writing files start with "pngw".
-The files that don't match either (like png.c, pngtrans.c, etc.)
-are used for both reading and writing, and always need to be included.
-The progressive reader is in pngpread.c
-
-If you are creating or distributing a dynamically linked library (a .so
-or DLL file), you should not remove or disable any parts of the library,
-as this will cause applications linked with different versions of the
-library to fail if they call functions not available in your library.
-The size of the library itself should not be an issue, because only
-those sections that are actually used will be loaded into memory.
-
-XIV. Enabling or disabling hardware optimizations
-
-Certain hardware capabilities, such as the Intel SSE instructions,
-are normally detected at run time. Enable them with configure options
-such as one of
-
- --enable-arm-neon=yes
- --enable-mips-msa=yes
- --enable-intel-sse=yes
- --enable-powerpc-vsx=yes
-
-or enable them all at once with
-
- --enable-hardware-optimizations=yes
-
-or, if you are not using "configure", you can use one
-or more of
-
- CPPFLAGS += "-DPNG_ARM_NEON"
- CPPFLAGS += "-DPNG_MIPS_MSA"
- CPPFLAGS += "-DPNG_INTEL_SSE"
- CPPFLAGS += "-DPNG_POWERPC_VSX"
-
-See for example scripts/makefile.linux-opt
-
-If you wish to avoid using them,
-you can disable them via the configure option
-
- --disable-hardware-optimizations
-
-to disable them all, or
-
- --enable-intel-sse=no
-
-to disable a particular one,
-or via compiler-command options such as
-
- CPPFLAGS += "-DPNG_ARM_NEON_OPT=0, -DPNG_MIPS_MSA_OPT=0,
- -DPNG_INTEL_SSE_OPT=0, -DPNG_POWERPC_VSX_OPT=0"
-
-If you are using cmake, hardware optimizations are "on"
-by default. To disable them, use
-
- cmake . -DPNG_ARM_NEON=no -DPNG_INTEL_SSE=no \
- -DPNG_MIPS_MSA=no -DPNG_POWERPC_VSX=no
-
-or disable them all at once with
-
- cmake . -DPNG_HARDWARE_OPTIMIZATIONS=no
-
-XV. Changes to the build and configuration of libpng in libpng-1.5.x
-
-Details of internal changes to the library code can be found in the CHANGES
-file and in the GIT repository logs. These will be of no concern to the vast
-majority of library users or builders; however, the few who configure libpng
-to a non-default feature set may need to change how this is done.
-
-There should be no need for library builders to alter build scripts if
-these use the distributed build support - configure or the makefiles -
-however, users of the makefiles may care to update their build scripts
-to build pnglibconf.h where the corresponding makefile does not do so.
-
-Building libpng with a non-default configuration has changed completely.
-The old method using pngusr.h should still work correctly even though the
-way pngusr.h is used in the build has been changed; however, library
-builders will probably want to examine the changes to take advantage of
-new capabilities and to simplify their build system.
-
-A. Specific changes to library configuration capabilities
-
-The exact mechanism used to control attributes of API functions has
-changed. A single set of operating system independent macro definitions
-is used and operating system specific directives are defined in
-pnglibconf.h
-
-As part of this the mechanism used to choose procedure call standards on
-those systems that allow a choice has been changed. At present this only
-affects certain Microsoft (DOS, Windows) and IBM (OS/2) operating systems
-running on Intel processors. As before, PNGAPI is defined where required
-to control the exported API functions; however, two new macros, PNGCBAPI
-and PNGCAPI, are used instead for callback functions (PNGCBAPI) and
-(PNGCAPI) for functions that must match a C library prototype (currently
-only png_longjmp_ptr, which must match the C longjmp function.) The new
-approach is documented in pngconf.h
-
-Despite these changes, libpng 1.5.0 only supports the native C function
-calling standard on those platforms tested so far ("__cdecl" on Microsoft
-Windows). This is because the support requirements for alternative
-calling conventions seem to no longer exist. Developers who find it
-necessary to set PNG_API_RULE to 1 should advise the mailing list
-(png-mng-implement) of this and library builders who use Openwatcom and
-therefore set PNG_API_RULE to 2 should also contact the mailing list.
-
-B. Changes to the configuration mechanism
-
-Prior to libpng-1.5.0 library builders who needed to configure libpng
-had either to modify the exported pngconf.h header file to add system
-specific configuration or had to write feature selection macros into
-pngusr.h and cause this to be included into pngconf.h by defining
-PNG_USER_CONFIG. The latter mechanism had the disadvantage that an
-application built without PNG_USER_CONFIG defined would see the
-unmodified, default, libpng API and thus would probably fail to link.
-
-These mechanisms still work in the configure build and in any makefile
-build that builds pnglibconf.h, although the feature selection macros
-have changed somewhat as described above. In 1.5.0, however, pngusr.h is
-processed only once, at the time the exported header file pnglibconf.h is
-built. pngconf.h no longer includes pngusr.h; therefore, pngusr.h is ignored
-after the build of pnglibconf.h and it is never included in an application
-build.
-
-The formerly used alternative of adding a list of feature macros to the
-CPPFLAGS setting in the build also still works; however, the macros will be
-copied to pnglibconf.h and this may produce macro redefinition warnings
-when the individual C files are compiled.
-
-All configuration now only works if pnglibconf.h is built from
-scripts/pnglibconf.dfa. This requires the program awk. Brian Kernighan
-(the original author of awk) maintains C source code of that awk and this
-and all known later implementations (often called by subtly different
-names - nawk and gawk for example) are adequate to build pnglibconf.h.
-The Sun Microsystems (now Oracle) program 'awk' is an earlier version
-and does not work; this may also apply to other systems that have a
-functioning awk called 'nawk'.
-
-Configuration options are now documented in scripts/pnglibconf.dfa. This
-file also includes dependency information that ensures a configuration is
-consistent; that is, if a feature is switched off, dependent features are
-also switched off. As a recommended alternative to using feature macros in
-pngusr.h a system builder may also define equivalent options in pngusr.dfa
-(or, indeed, any file) and add that to the configuration by setting
-DFA_XTRA to the file name. The makefiles in contrib/pngminim illustrate
-how to do this, and also illustrate a case where pngusr.h is still required.
-
-After you have built libpng, the definitions that were recorded in
-pnglibconf.h are available to your application (pnglibconf.h is included
-in png.h and gets installed alongside png.h and pngconf.h in your
-$PREFIX/include directory). Do not edit pnglibconf.h after you have built
-libpng, because than the settings would not accurately reflect the settings
-that were used to build libpng.
-
-XVI. Setjmp/longjmp issues
-
-Libpng uses setjmp()/longjmp() for error handling. Unfortunately setjmp()
-is known to be not thread-safe on some platforms and we don't know of
-any platform where it is guaranteed to be thread-safe. Therefore, if
-your application is going to be using multiple threads, you should
-configure libpng with PNG_NO_SETJMP in your pngusr.dfa file, with
--DPNG_NO_SETJMP on your compile line, or with
-
- #undef PNG_SETJMP_SUPPORTED
-
-in your pnglibconf.h or pngusr.h.
-
-Starting with libpng-1.6.0, the library included a "simplified API".
-This requires setjmp/longjmp, so you must either build the library
-with PNG_SETJMP_SUPPORTED defined, or with PNG_SIMPLIFIED_READ_SUPPORTED
-and PNG_SIMPLIFIED_WRITE_SUPPORTED undefined.
-
-XVII. Common linking failures
-
-If your application fails to find libpng or zlib entries while linking:
-
- Be sure "-lz" appears after "-lpng" on your linking command.
-
- Be sure you have built libpng, zlib, and your application for the
- same platform (e.g., 32-bit or 64-bit).
-
- If you are using the vstudio project, observe the WARNING in
- project/vstudio/README.txt.
-
-XVIII. Other sources of information about libpng:
-
-Further information can be found in the README and libpng-manual.txt
-files, in the individual makefiles, in png.h, and the manual pages
-libpng.3 and png.5.
-
-Copyright (c) 1998-2002,2006-2016 Glenn Randers-Pehrson
-This document is released under the libpng license.
-For conditions of distribution and use, see the disclaimer
-and license in png.h.
diff --git a/3rdparty/libpng/libpng-1.6.37/LICENSE b/3rdparty/libpng/libpng-1.6.37/LICENSE
deleted file mode 100644
index e0c5b53..0000000
--- a/3rdparty/libpng/libpng-1.6.37/LICENSE
+++ /dev/null
@@ -1,134 +0,0 @@
-COPYRIGHT NOTICE, DISCLAIMER, and LICENSE
-=========================================
-
-PNG Reference Library License version 2
----------------------------------------
-
- * Copyright (c) 1995-2019 The PNG Reference Library Authors.
- * Copyright (c) 2018-2019 Cosmin Truta.
- * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
- * Copyright (c) 1996-1997 Andreas Dilger.
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
-
-The software is supplied "as is", without warranty of any kind,
-express or implied, including, without limitation, the warranties
-of merchantability, fitness for a particular purpose, title, and
-non-infringement. In no event shall the Copyright owners, or
-anyone distributing the software, be liable for any damages or
-other liability, whether in contract, tort or otherwise, arising
-from, out of, or in connection with the software, or the use or
-other dealings in the software, even if advised of the possibility
-of such damage.
-
-Permission is hereby granted to use, copy, modify, and distribute
-this software, or portions hereof, for any purpose, without fee,
-subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you
- must not claim that you wrote the original software. If you
- use this software in a product, an acknowledgment in the product
- documentation would be appreciated, but is not required.
-
- 2. Altered source versions must be plainly marked as such, and must
- not be misrepresented as being the original software.
-
- 3. This Copyright notice may not be removed or altered from any
- source or altered source distribution.
-
-
-PNG Reference Library License version 1 (for libpng 0.5 through 1.6.35)
------------------------------------------------------------------------
-
-libpng versions 1.0.7, July 1, 2000, through 1.6.35, July 15, 2018 are
-Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson, are
-derived from libpng-1.0.6, and are distributed according to the same
-disclaimer and license as libpng-1.0.6 with the following individuals
-added to the list of Contributing Authors:
-
- Simon-Pierre Cadieux
- Eric S. Raymond
- Mans Rullgard
- Cosmin Truta
- Gilles Vollant
- James Yu
- Mandar Sahastrabuddhe
- Google Inc.
- Vadim Barkov
-
-and with the following additions to the disclaimer:
-
- There is no warranty against interference with your enjoyment of
- the library or against infringement. There is no warranty that our
- efforts or the library will fulfill any of your particular purposes
- or needs. This library is provided with all faults, and the entire
- risk of satisfactory quality, performance, accuracy, and effort is
- with the user.
-
-Some files in the "contrib" directory and some configure-generated
-files that are distributed with libpng have other copyright owners, and
-are released under other open source licenses.
-
-libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
-Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from
-libpng-0.96, and are distributed according to the same disclaimer and
-license as libpng-0.96, with the following individuals added to the
-list of Contributing Authors:
-
- Tom Lane
- Glenn Randers-Pehrson
- Willem van Schaik
-
-libpng versions 0.89, June 1996, through 0.96, May 1997, are
-Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88,
-and are distributed according to the same disclaimer and license as
-libpng-0.88, with the following individuals added to the list of
-Contributing Authors:
-
- John Bowler
- Kevin Bracey
- Sam Bushell
- Magnus Holmgren
- Greg Roelofs
- Tom Tanner
-
-Some files in the "scripts" directory have other copyright owners,
-but are released under this license.
-
-libpng versions 0.5, May 1995, through 0.88, January 1996, are
-Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
-
-For the purposes of this copyright and license, "Contributing Authors"
-is defined as the following set of individuals:
-
- Andreas Dilger
- Dave Martindale
- Guy Eric Schalnat
- Paul Schmidt
- Tim Wegner
-
-The PNG Reference Library is supplied "AS IS". The Contributing
-Authors and Group 42, Inc. disclaim all warranties, expressed or
-implied, including, without limitation, the warranties of
-merchantability and of fitness for any purpose. The Contributing
-Authors and Group 42, Inc. assume no liability for direct, indirect,
-incidental, special, exemplary, or consequential damages, which may
-result from the use of the PNG Reference Library, even if advised of
-the possibility of such damage.
-
-Permission is hereby granted to use, copy, modify, and distribute this
-source code, or portions hereof, for any purpose, without fee, subject
-to the following restrictions:
-
- 1. The origin of this source code must not be misrepresented.
-
- 2. Altered versions must be plainly marked as such and must not
- be misrepresented as being the original source.
-
- 3. This Copyright notice may not be removed or altered from any
- source or altered source distribution.
-
-The Contributing Authors and Group 42, Inc. specifically permit,
-without fee, and encourage the use of this source code as a component
-to supporting the PNG file format in commercial products. If you use
-this source code in a product, acknowledgment is not required but would
-be appreciated.
diff --git a/3rdparty/libpng/libpng-1.6.37/Makefile b/3rdparty/libpng/libpng-1.6.37/Makefile
deleted file mode 100644
index 2956206..0000000
--- a/3rdparty/libpng/libpng-1.6.37/Makefile
+++ /dev/null
@@ -1,2428 +0,0 @@
-# Makefile.in generated by automake 1.16.1 from Makefile.am.
-# Makefile. Generated from Makefile.in by configure.
-
-# Copyright (C) 1994-2018 Free Software Foundation, Inc.
-
-# This Makefile.in is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
-
-
-# Makefile.am, the source file for Makefile.in (and hence Makefile), is
-#
-# Copyright (c) 2018 Cosmin Truta
-# Copyright (c) 2004-2016 Glenn Randers-Pehrson
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-
-
-
-
-
-am__is_gnu_make = { \
- if test -z '$(MAKELEVEL)'; then \
- false; \
- elif test -n '$(MAKE_HOST)'; then \
- true; \
- elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
- true; \
- else \
- false; \
- fi; \
-}
-am__make_running_with_option = \
- case $${target_option-} in \
- ?) ;; \
- *) echo "am__make_running_with_option: internal error: invalid" \
- "target option '$${target_option-}' specified" >&2; \
- exit 1;; \
- esac; \
- has_opt=no; \
- sane_makeflags=$$MAKEFLAGS; \
- if $(am__is_gnu_make); then \
- sane_makeflags=$$MFLAGS; \
- else \
- case $$MAKEFLAGS in \
- *\\[\ \ ]*) \
- bs=\\; \
- sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
- | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \
- esac; \
- fi; \
- skip_next=no; \
- strip_trailopt () \
- { \
- flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
- }; \
- for flg in $$sane_makeflags; do \
- test $$skip_next = yes && { skip_next=no; continue; }; \
- case $$flg in \
- *=*|--*) continue;; \
- -*I) strip_trailopt 'I'; skip_next=yes;; \
- -*I?*) strip_trailopt 'I';; \
- -*O) strip_trailopt 'O'; skip_next=yes;; \
- -*O?*) strip_trailopt 'O';; \
- -*l) strip_trailopt 'l'; skip_next=yes;; \
- -*l?*) strip_trailopt 'l';; \
- -[dEDm]) skip_next=yes;; \
- -[JT]) skip_next=yes;; \
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-# And --install-config:
-
-install-exec-hook: install-libpng-config
-uninstall-hook: uninstall-libpng-config
-
-# The following addition ensures that 'make all' always builds the test programs
-# too. It used to, but some change either in libpng or configure stopped this
-# working.
-all-am: $(check_PROGRAMS)
-
-# Tell versions [3.59,3.63) of GNU make to not export all variables.
-# Otherwise a system limit (for SysV at least) may be exceeded.
-.NOEXPORT:
diff --git a/3rdparty/libpng/libpng-1.6.37/Makefile.am b/3rdparty/libpng/libpng-1.6.37/Makefile.am
deleted file mode 100644
index 4f621aa..0000000
--- a/3rdparty/libpng/libpng-1.6.37/Makefile.am
+++ /dev/null
@@ -1,393 +0,0 @@
-# Makefile.am, the source file for Makefile.in (and hence Makefile), is
-#
-# Copyright (c) 2018 Cosmin Truta
-# Copyright (c) 2004-2016 Glenn Randers-Pehrson
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-PNGLIB_BASENAME= libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
-
-ACLOCAL_AMFLAGS = -I scripts
-
-# test programs - run on make check, make distcheck
-check_PROGRAMS= pngtest pngunknown pngstest pngvalid pngimage pngcp
-if HAVE_CLOCK_GETTIME
-check_PROGRAMS += timepng
-endif
-
-# Utilities - installed
-bin_PROGRAMS= pngfix png-fix-itxt
-
-# This ensures that pnglibconf.h gets built at the start of 'make all' or
-# 'make check', but it does not add dependencies to the individual programs,
-# this is done below.
-#
-# IMPORTANT: always add the object modules of new programs to the list below
-# because otherwise the sequence 'configure; make new-program' will *sometimes*
-# result in the installed (system) pnglibconf.h being used and the result is
-# always wrong and always very confusing.
-BUILT_SOURCES = pnglibconf.h
-
-pngtest_SOURCES = pngtest.c
-pngtest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-pngvalid_SOURCES = contrib/libtests/pngvalid.c
-pngvalid_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-pngstest_SOURCES = contrib/libtests/pngstest.c
-pngstest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-pngunknown_SOURCES = contrib/libtests/pngunknown.c
-pngunknown_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-pngimage_SOURCES = contrib/libtests/pngimage.c
-pngimage_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-timepng_SOURCES = contrib/libtests/timepng.c
-timepng_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-pngfix_SOURCES = contrib/tools/pngfix.c
-pngfix_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-png_fix_itxt_SOURCES = contrib/tools/png-fix-itxt.c
-
-pngcp_SOURCES = contrib/tools/pngcp.c
-pngcp_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-# Generally these are single line shell scripts to run a test with a particular
-# set of parameters:
-TESTS =\
- tests/pngtest\
- tests/pngtest-badpngs\
- tests/pngvalid-gamma-16-to-8 tests/pngvalid-gamma-alpha-mode\
- tests/pngvalid-gamma-background tests/pngvalid-gamma-expand16-alpha-mode\
- tests/pngvalid-gamma-expand16-background\
- tests/pngvalid-gamma-expand16-transform tests/pngvalid-gamma-sbit\
- tests/pngvalid-gamma-threshold tests/pngvalid-gamma-transform\
- tests/pngvalid-progressive-size\
- tests/pngvalid-progressive-interlace-standard\
- tests/pngvalid-transform\
- tests/pngvalid-progressive-standard tests/pngvalid-standard\
- tests/pngstest-1.8 tests/pngstest-1.8-alpha tests/pngstest-linear\
- tests/pngstest-linear-alpha tests/pngstest-none tests/pngstest-none-alpha\
- tests/pngstest-sRGB tests/pngstest-sRGB-alpha tests/pngunknown-IDAT\
- tests/pngunknown-discard tests/pngunknown-if-safe tests/pngunknown-sAPI\
- tests/pngunknown-sTER tests/pngunknown-save tests/pngunknown-vpAg\
- tests/pngimage-quick tests/pngimage-full
-
-# man pages
-dist_man_MANS= libpng.3 libpngpf.3 png.5
-
-# generate the -config scripts if required
-binconfigs= libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config
-EXTRA_SCRIPTS= libpng-config libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config
-bin_SCRIPTS= @binconfigs@
-
-# rules to build libpng, only build the old library on request
-lib_LTLIBRARIES=libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-# EXTRA_LTLIBRARIES= libpng.la
-libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = png.c pngerror.c\
- pngget.c pngmem.c pngpread.c pngread.c pngrio.c pngrtran.c pngrutil.c\
- pngset.c pngtrans.c pngwio.c pngwrite.c pngwtran.c pngwutil.c\
- png.h pngconf.h pngdebug.h pnginfo.h pngpriv.h pngstruct.h pngusr.dfa
-
-if PNG_ARM_NEON
-libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += arm/arm_init.c\
- arm/filter_neon.S arm/filter_neon_intrinsics.c \
- arm/palette_neon_intrinsics.c
-endif
-
-if PNG_MIPS_MSA
-libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += mips/mips_init.c\
- mips/filter_msa_intrinsics.c
-endif
-
-if PNG_INTEL_SSE
-libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += intel/intel_init.c\
- intel/filter_sse2_intrinsics.c
-endif
-
-if PNG_POWERPC_VSX
-libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += powerpc/powerpc_init.c\
- powerpc/filter_vsx_intrinsics.c
-endif
-
-nodist_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = pnglibconf.h
-
-libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS = -no-undefined -export-dynamic \
- -version-number @PNGLIB_MAJOR@@PNGLIB_MINOR@:@PNGLIB_RELEASE@:0
-
-if HAVE_LD_VERSION_SCRIPT
-# Versioned symbols and restricted exports
-if HAVE_SOLARIS_LD
- libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -Wl,-M -Wl,libpng.vers
-else
- libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -Wl,--version-script=libpng.vers
-endif
-
- libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.vers
-else
-# Only restricted exports when possible
- libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -export-symbols libpng.sym
- libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.sym
-endif
-
-#distribute headers in /usr/include/libpng/*
-pkgincludedir= $(includedir)/$(PNGLIB_BASENAME)
-pkginclude_HEADERS= png.h pngconf.h
-nodist_pkginclude_HEADERS= pnglibconf.h
-
-# pkg-config stuff, note that libpng.pc is always required in order
-# to get the correct library
-pkgconfigdir = @pkgconfigdir@
-pkgconfig_DATA = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc
-
-# Extra source distribution files, '${srcdir}' is used below to stop build files
-# from those directories being included. This only works if the configure is
-# not done in the source directory!
-EXTRA_DIST= \
- ANNOUNCE AUTHORS CHANGES INSTALL LICENSE README TODO TRADEMARK \
- pngtest.png pngbar.png pngnow.png pngbar.jpg autogen.sh \
- ${srcdir}/contrib ${srcdir}/projects ${srcdir}/scripts \
- $(TESTS) $(XFAIL_TESTS) tests/pngstest \
- CMakeLists.txt example.c libpng-manual.txt
-
-SCRIPT_CLEANFILES=scripts/*.out scripts/*.chk
-
-CLEANFILES= *.tf? pngout.png libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc \
- libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config libpng.vers libpng.sym \
- check.new pnglibconf.h pngprefix.h symbols.new pngtest-log.txt \
- pnglibconf.out pnglibconf.c pnglibconf.pre pnglibconf.dfn \
- $(SCRIPT_CLEANFILES)
-
-MAINTAINERCLEANFILES = Makefile.in aclocal.m4 config.guess config.h.in \
-config.sub configure depcomp install-sh ltmain.sh missing
-
-# PNG_COPTS give extra options for the C compiler to be used on all compilation
-# steps (unless targe_CFLAGS is specified; that will take precedence over
-# AM_CFLAGS)
-PNG_COPTS = @PNG_COPTS@
-AM_CFLAGS = ${PNG_COPTS}
-
-# DFNCPP is normally just CPP - the C preprocessor - but on Solaris and maybe
-# other operating systems (NeXT?) the C preprocessor selected by configure
-# checks input tokens for validity - effectively it performs part of the ANSI-C
-# parsing - and therefore fails with the .df files. configure.ac has special
-# checks for this and sets DFNCPP appropriately.
-DFNCPP = @DFNCPP@
-
-SUFFIXES = .chk .out
-
-$(PNGLIB_BASENAME).pc: libpng.pc
- cp libpng.pc $@
-
-$(PNGLIB_BASENAME)-config: libpng-config
- cp libpng-config $@
-
-scripts/sym.out scripts/vers.out: png.h pngconf.h pnglibconf.h
-scripts/prefix.out: png.h pngconf.h pnglibconf.out
-scripts/symbols.out: png.h pngconf.h $(srcdir)/scripts/pnglibconf.h.prebuilt
-scripts/intprefix.out: pnglibconf.h
-
-libpng.sym: scripts/sym.out
- rm -f $@
- cp $? $@
-libpng.vers: scripts/vers.out
- rm -f $@
- cp $? $@
-
-if DO_PNG_PREFIX
-# Rename functions in scripts/prefix.out with a PNG_PREFIX prefix.
-# Rename macros in scripts/macro.lst from PNG_PREFIXpng_ to PNG_ (the actual
-# implementation of the macro).
-pnglibconf.h: pnglibconf.out scripts/prefix.out scripts/macro.lst
- rm -f $@
- $(AWK) 's==0 && NR>1{print prev}\
- s==0{prev=$$0}\
- s==1{print "#define", $$1, "@PNG_PREFIX@" $$1}\
- s==2{print "#define @PNG_PREFIX@png_" $$1, "PNG_" $$1}\
- END{print prev}' s=0 pnglibconf.out s=1 scripts/prefix.out\
- s=2 ${srcdir}/scripts/macro.lst >pnglibconf.tf8
- mv pnglibconf.tf8 $@
-
-pngprefix.h: scripts/intprefix.out
- rm -f pngprefix.tf1
- $(AWK) '{print "#define", $$1, "@PNG_PREFIX@" $$1}' $? >pngprefix.tf1
- mv pngprefix.tf1 $@
-else
-pnglibconf.h: pnglibconf.out
- rm -f $@
- cp $? $@
-
-pngprefix.h: # is empty
- :>$@
-endif
-
-$(srcdir)/scripts/pnglibconf.h.prebuilt:
- @echo "Attempting to build $@" >&2
- @echo "This is a machine generated file, but if you want to make" >&2
- @echo "a new one simply make 'scripts/pnglibconf.out', copy that" >&2
- @echo "AND set PNG_ZLIB_VERNUM to 0 (you MUST do this)" >&2
- @exit 1
-
-# The following is necessary to ensure that the local pnglibconf.h is used, not
-# an installed one (this can happen immediately after on a clean system if
-# 'make test' is the first thing the user does.) Only files which include
-# one of the png source files (typically png.h or pngpriv.h) need to be listed
-# here:
-pngtest.o: pnglibconf.h
-
-contrib/libtests/makepng.o: pnglibconf.h
-contrib/libtests/pngstest.o: pnglibconf.h
-contrib/libtests/pngunknown.o: pnglibconf.h
-contrib/libtests/pngimage.o: pnglibconf.h
-contrib/libtests/pngvalid.o: pnglibconf.h
-contrib/libtests/readpng.o: pnglibconf.h
-contrib/libtests/tarith.o: pnglibconf.h
-contrib/libtests/timepng.o: pnglibconf.h
-
-contrib/tools/makesRGB.o: pnglibconf.h
-contrib/tools/pngfix.o: pnglibconf.h
-contrib/tools/pngcp.o: pnglibconf.h
-
-# We must use -DPNG_NO_USE_READ_MACROS here even when the library may actually
-# be built with PNG_USE_READ_MACROS; this prevents the read macros from
-# interfering with the symbol file format.
-SYMBOL_CFLAGS = -DPNGLIB_LIBNAME='PNG@PNGLIB_MAJOR@@PNGLIB_MINOR@_0'\
- -DPNGLIB_VERSION='@PNGLIB_VERSION@'\
- -DSYMBOL_PREFIX='$(SYMBOL_PREFIX)'\
- -DPNG_NO_USE_READ_MACROS -DPNG_BUILDING_SYMBOL_TABLE
-
-if DO_PNG_PREFIX
-SYMBOL_CFLAGS += -DPNG_PREFIX='@PNG_PREFIX@'
-endif
-
-.c.out:
- rm -f $@ $*.tf[12]
- test -d scripts || mkdir scripts || test -d scripts
- $(DFNCPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)\
- $(CPPFLAGS) $(SYMBOL_CFLAGS) $< > $*.tf1
- $(AWK) -f "${srcdir}/scripts/dfn.awk" out="$*.tf2" $*.tf1 1>&2
- rm -f $*.tf1
- mv $*.tf2 $@
-
-# The .c file for pnglibconf.h is machine generated
-pnglibconf.c: scripts/pnglibconf.dfa scripts/options.awk pngconf.h pngusr.dfa $(DFA_XTRA)
- rm -f $@ $*.tf[45]
- $(AWK) -f ${srcdir}/scripts/options.awk out=$*.tf4 version=search\
- ${srcdir}/pngconf.h ${srcdir}/scripts/pnglibconf.dfa\
- ${srcdir}/pngusr.dfa $(DFA_XTRA) 1>&2
- $(AWK) -f ${srcdir}/scripts/options.awk out=$*.tf5 $*.tf4 1>&2
- rm $*.tf4
- mv $*.tf5 $@
-
-# Symbol checks (.def and .out files should match)
-scripts/symbols.chk: scripts/checksym.awk scripts/symbols.def scripts/symbols.out
-
-.out.chk:
- rm -f $@ $*.new
- $(AWK) -f ${srcdir}/scripts/checksym.awk ${srcdir}/scripts/${*F}.def\
- of="$*.new" $< >&2
- mv $*.new $@
-
-# used on demand to regenerate the standard header, CPPFLAGS should
-# be empty - no non-standard defines
-scripts/pnglibconf.c: scripts/pnglibconf.dfa scripts/options.awk pngconf.h
- rm -f $@ pnglibconf.tf[67]
- test -z "$(CPPFLAGS)"
- echo "com @PNGLIB_VERSION@ STANDARD API DEFINITION" |\
- $(AWK) -f ${srcdir}/scripts/options.awk out=pnglibconf.tf6\
- logunsupported=1 version=search ${srcdir}/pngconf.h -\
- ${srcdir}/scripts/pnglibconf.dfa 1>&2
- $(AWK) -f ${srcdir}/scripts/options.awk out=pnglibconf.tf7\
- pnglibconf.tf6 1>&2
- rm pnglibconf.tf6
- mv pnglibconf.tf7 $@
-
-$(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS): png.h pngconf.h \
- pnglibconf.h pngpriv.h pngdebug.h pnginfo.h pngstruct.h pngprefix.h
-
-test: check-am
-
-# Extra checks
-check: scripts/symbols.chk
-
-# Don't distribute the generated script files
-dist-hook:
- cd '$(top_distdir)'; rm -f $(SCRIPT_CLEANFILES)
-
-# Make links between installed files with release-specific names and the generic
-# file names. If this install rule is run the generic names will be deleted and
-# recreated - this has obvious issues for systems with multiple installations.
-
-install-header-links:
- @set -ex; cd '$(DESTDIR)$(includedir)'; for f in $(HEADERS); do \
- rm -f "$$f"; $(LN_S) "$(PNGLIB_BASENAME)/$$f" "$$f"; done
-
-uninstall-header-links:
- cd '$(DESTDIR)$(includedir)'; rm -f $(HEADERS)
-
-install-libpng-pc:
- @set -ex; cd '$(DESTDIR)$(pkgconfigdir)'; rm -f libpng.pc; \
- $(LN_S) '$(PNGLIB_BASENAME).pc' libpng.pc
-
-uninstall-libpng-pc:
- rm -f '$(DESTDIR)$(pkgconfigdir)/libpng.pc'
-
-# EXT_LIST is a list of the possibly library directory extensions, this exists
-# because we can't find a good way of discovering the file extensions that are
-# actually installed on a given system, so instead we check for every extension
-# we have seen.
-
-EXT_LIST = a dll.a so so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@ la sl dylib
-
-install-library-links:
- @set -x; cd '$(DESTDIR)$(libdir)';\
- for ext in $(EXT_LIST); do\
- rm -f "libpng.$$ext";\
- if test -f "$(PNGLIB_BASENAME).$$ext"; then\
- $(LN_S) "$(PNGLIB_BASENAME).$$ext" "libpng.$$ext" || exit 1;\
- fi;\
- done
-
-uninstall-library-links:
- @set -x; cd '$(DESTDIR)$(libdir)'; for ext in $(EXT_LIST); do\
- rm -f "libpng.$$ext"; done
-
-install-libpng-config:
- @set -ex; cd '$(DESTDIR)$(bindir)'; rm -f libpng-config; \
- $(LN_S) '$(PNGLIB_BASENAME)-config' libpng-config
-
-uninstall-libpng-config:
- rm -f '$(DESTDIR)$(bindir)/libpng-config'
-
-if DO_INSTALL_LINKS
-# If --enable-unversioned-links is specified the header and lib file links
-# will be automatically made on a 'make install':
-
-install-data-hook: install-header-links
-uninstall-hook: uninstall-header-links
-install-exec-hook: install-library-links
-uninstall-hook: uninstall-library-links
-endif
-
-if DO_INSTALL_LIBPNG_PC
-# Likewise, --install-pc causes libpng.pc to be constructed:
-
-install-data-hook: install-libpng-pc
-uninstall-hook: uninstall-libpng-pc
-endif
-
-if DO_INSTALL_LIBPNG_CONFIG
-# And --install-config:
-
-install-exec-hook: install-libpng-config
-uninstall-hook: uninstall-libpng-config
-endif
-
-# The following addition ensures that 'make all' always builds the test programs
-# too. It used to, but some change either in libpng or configure stopped this
-# working.
-all-am: $(check_PROGRAMS)
diff --git a/3rdparty/libpng/libpng-1.6.37/Makefile.in b/3rdparty/libpng/libpng-1.6.37/Makefile.in
deleted file mode 100644
index 81ac1c8..0000000
--- a/3rdparty/libpng/libpng-1.6.37/Makefile.in
+++ /dev/null
@@ -1,2428 +0,0 @@
-# Makefile.in generated by automake 1.16.1 from Makefile.am.
-# @configure_input@
-
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-
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-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
-@SET_MAKE@
-
-# Makefile.am, the source file for Makefile.in (and hence Makefile), is
-#
-# Copyright (c) 2018 Cosmin Truta
-# Copyright (c) 2004-2016 Glenn Randers-Pehrson
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-
-
-
-
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- $(AWK) -f ${srcdir}/scripts/options.awk out=$*.tf4 version=search\
- ${srcdir}/pngconf.h ${srcdir}/scripts/pnglibconf.dfa\
- ${srcdir}/pngusr.dfa $(DFA_XTRA) 1>&2
- $(AWK) -f ${srcdir}/scripts/options.awk out=$*.tf5 $*.tf4 1>&2
- rm $*.tf4
- mv $*.tf5 $@
-
-# Symbol checks (.def and .out files should match)
-scripts/symbols.chk: scripts/checksym.awk scripts/symbols.def scripts/symbols.out
-
-.out.chk:
- rm -f $@ $*.new
- $(AWK) -f ${srcdir}/scripts/checksym.awk ${srcdir}/scripts/${*F}.def\
- of="$*.new" $< >&2
- mv $*.new $@
-
-# used on demand to regenerate the standard header, CPPFLAGS should
-# be empty - no non-standard defines
-scripts/pnglibconf.c: scripts/pnglibconf.dfa scripts/options.awk pngconf.h
- rm -f $@ pnglibconf.tf[67]
- test -z "$(CPPFLAGS)"
- echo "com @PNGLIB_VERSION@ STANDARD API DEFINITION" |\
- $(AWK) -f ${srcdir}/scripts/options.awk out=pnglibconf.tf6\
- logunsupported=1 version=search ${srcdir}/pngconf.h -\
- ${srcdir}/scripts/pnglibconf.dfa 1>&2
- $(AWK) -f ${srcdir}/scripts/options.awk out=pnglibconf.tf7\
- pnglibconf.tf6 1>&2
- rm pnglibconf.tf6
- mv pnglibconf.tf7 $@
-
-$(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS): png.h pngconf.h \
- pnglibconf.h pngpriv.h pngdebug.h pnginfo.h pngstruct.h pngprefix.h
-
-test: check-am
-
-# Extra checks
-check: scripts/symbols.chk
-
-# Don't distribute the generated script files
-dist-hook:
- cd '$(top_distdir)'; rm -f $(SCRIPT_CLEANFILES)
-
-# Make links between installed files with release-specific names and the generic
-# file names. If this install rule is run the generic names will be deleted and
-# recreated - this has obvious issues for systems with multiple installations.
-
-install-header-links:
- @set -ex; cd '$(DESTDIR)$(includedir)'; for f in $(HEADERS); do \
- rm -f "$$f"; $(LN_S) "$(PNGLIB_BASENAME)/$$f" "$$f"; done
-
-uninstall-header-links:
- cd '$(DESTDIR)$(includedir)'; rm -f $(HEADERS)
-
-install-libpng-pc:
- @set -ex; cd '$(DESTDIR)$(pkgconfigdir)'; rm -f libpng.pc; \
- $(LN_S) '$(PNGLIB_BASENAME).pc' libpng.pc
-
-uninstall-libpng-pc:
- rm -f '$(DESTDIR)$(pkgconfigdir)/libpng.pc'
-
-install-library-links:
- @set -x; cd '$(DESTDIR)$(libdir)';\
- for ext in $(EXT_LIST); do\
- rm -f "libpng.$$ext";\
- if test -f "$(PNGLIB_BASENAME).$$ext"; then\
- $(LN_S) "$(PNGLIB_BASENAME).$$ext" "libpng.$$ext" || exit 1;\
- fi;\
- done
-
-uninstall-library-links:
- @set -x; cd '$(DESTDIR)$(libdir)'; for ext in $(EXT_LIST); do\
- rm -f "libpng.$$ext"; done
-
-install-libpng-config:
- @set -ex; cd '$(DESTDIR)$(bindir)'; rm -f libpng-config; \
- $(LN_S) '$(PNGLIB_BASENAME)-config' libpng-config
-
-uninstall-libpng-config:
- rm -f '$(DESTDIR)$(bindir)/libpng-config'
-
-# If --enable-unversioned-links is specified the header and lib file links
-# will be automatically made on a 'make install':
-
-@DO_INSTALL_LINKS_TRUE@install-data-hook: install-header-links
-@DO_INSTALL_LINKS_TRUE@uninstall-hook: uninstall-header-links
-@DO_INSTALL_LINKS_TRUE@install-exec-hook: install-library-links
-@DO_INSTALL_LINKS_TRUE@uninstall-hook: uninstall-library-links
-
-# Likewise, --install-pc causes libpng.pc to be constructed:
-
-@DO_INSTALL_LIBPNG_PC_TRUE@install-data-hook: install-libpng-pc
-@DO_INSTALL_LIBPNG_PC_TRUE@uninstall-hook: uninstall-libpng-pc
-
-# And --install-config:
-
-@DO_INSTALL_LIBPNG_CONFIG_TRUE@install-exec-hook: install-libpng-config
-@DO_INSTALL_LIBPNG_CONFIG_TRUE@uninstall-hook: uninstall-libpng-config
-
-# The following addition ensures that 'make all' always builds the test programs
-# too. It used to, but some change either in libpng or configure stopped this
-# working.
-all-am: $(check_PROGRAMS)
-
-# Tell versions [3.59,3.63) of GNU make to not export all variables.
-# Otherwise a system limit (for SysV at least) may be exceeded.
-.NOEXPORT:
diff --git a/3rdparty/libpng/libpng-1.6.37/README b/3rdparty/libpng/libpng-1.6.37/README
deleted file mode 100644
index cfc1f0e..0000000
--- a/3rdparty/libpng/libpng-1.6.37/README
+++ /dev/null
@@ -1,183 +0,0 @@
-README for libpng version 1.6.37 - April 14, 2019
-=================================================
-
-See the note about version numbers near the top of png.h.
-See INSTALL for instructions on how to install libpng.
-
-Libpng comes in several distribution formats. Get libpng-*.tar.gz or
-libpng-*.tar.xz or if you want UNIX-style line endings in the text
-files, or lpng*.7z or lpng*.zip if you want DOS-style line endings.
-
-Version 0.89 was the first official release of libpng. Don't let the
-fact that it's the first release fool you. The libpng library has been
-in extensive use and testing since mid-1995. By late 1997 it had
-finally gotten to the stage where there hadn't been significant
-changes to the API in some time, and people have a bad feeling about
-libraries with versions < 1.0. Version 1.0.0 was released in
-March 1998.
-
-****
-Note that some of the changes to the png_info structure render this
-version of the library binary incompatible with libpng-0.89 or
-earlier versions if you are using a shared library. The type of the
-"filler" parameter for png_set_filler() has changed from png_byte to
-png_uint_32, which will affect shared-library applications that use
-this function.
-
-To avoid problems with changes to the internals of the png info_struct,
-new APIs have been made available in 0.95 to avoid direct application
-access to info_ptr. These functions are the png_set_<chunk> and
-png_get_<chunk> functions. These functions should be used when
-accessing/storing the info_struct data, rather than manipulating it
-directly, to avoid such problems in the future.
-
-It is important to note that the APIs did not make current programs
-that access the info struct directly incompatible with the new
-library, through libpng-1.2.x. In libpng-1.4.x, which was meant to
-be a transitional release, members of the png_struct and the
-info_struct can still be accessed, but the compiler will issue a
-warning about deprecated usage. Since libpng-1.5.0, direct access
-to these structs is not allowed, and the definitions of the structs
-reside in private pngstruct.h and pnginfo.h header files that are not
-accessible to applications. It is strongly suggested that new
-programs use the new APIs (as shown in example.c and pngtest.c), and
-older programs be converted to the new format, to facilitate upgrades
-in the future.
-****
-
-Additions since 0.90 include the ability to compile libpng as a
-Windows DLL, and new APIs for accessing data in the info struct.
-Experimental functions include the ability to set weighting and cost
-factors for row filter selection, direct reads of integers from buffers
-on big-endian processors that support misaligned data access, faster
-methods of doing alpha composition, and more accurate 16->8 bit color
-conversion.
-
-The additions since 0.89 include the ability to read from a PNG stream
-which has had some (or all) of the signature bytes read by the calling
-application. This also allows the reading of embedded PNG streams that
-do not have the PNG file signature. As well, it is now possible to set
-the library action on the detection of chunk CRC errors. It is possible
-to set different actions based on whether the CRC error occurred in a
-critical or an ancillary chunk.
-
-For a detailed description on using libpng, read libpng-manual.txt.
-For examples of libpng in a program, see example.c and pngtest.c. For
-usage information and restrictions (what little they are) on libpng,
-see png.h. For a description on using zlib (the compression library
-used by libpng) and zlib's restrictions, see zlib.h
-
-I have included a general makefile, as well as several machine and
-compiler specific ones, but you may have to modify one for your own
-needs.
-
-You should use zlib 1.0.4 or later to run this, but it MAY work with
-versions as old as zlib 0.95. Even so, there are bugs in older zlib
-versions which can cause the output of invalid compression streams for
-some images.
-
-You should also note that zlib is a compression library that is useful
-for more things than just PNG files. You can use zlib as a drop-in
-replacement for fread() and fwrite(), if you are so inclined.
-
-zlib should be available at the same place that libpng is, or at
-https://zlib.net.
-
-You may also want a copy of the PNG specification. It is available
-as an RFC, a W3C Recommendation, and an ISO/IEC Standard. You can find
-these at http://www.libpng.org/pub/png/pngdocs.html .
-
-This code is currently being archived at libpng.sourceforge.io in the
-[DOWNLOAD] area, and at http://libpng.download/src .
-
-This release, based in a large way on Glenn's, Guy's and Andreas'
-earlier work, was created and will be supported by myself and the PNG
-development group.
-
-Send comments/corrections/commendations to png-mng-implement at
-lists.sourceforge.net (subscription required; visit
-https://lists.sourceforge.net/lists/listinfo/png-mng-implement
-to subscribe).
-
-Send general questions about the PNG specification to png-mng-misc
-at lists.sourceforge.net (subscription required; visit
-https://lists.sourceforge.net/lists/listinfo/png-mng-misc to
-subscribe).
-
-Files in this distribution:
-
- ANNOUNCE => Announcement of this version, with recent changes
- AUTHORS => List of contributing authors
- CHANGES => Description of changes between libpng versions
- KNOWNBUG => List of known bugs and deficiencies
- LICENSE => License to use and redistribute libpng
- README => This file
- TODO => Things not implemented in the current library
- TRADEMARK => Trademark information
- example.c => Example code for using libpng functions
- libpng.3 => manual page for libpng (includes libpng-manual.txt)
- libpng-manual.txt => Description of libpng and its functions
- libpngpf.3 => manual page for libpng's private functions
- png.5 => manual page for the PNG format
- png.c => Basic interface functions common to library
- png.h => Library function and interface declarations (public)
- pngpriv.h => Library function and interface declarations (private)
- pngconf.h => System specific library configuration (public)
- pngstruct.h => png_struct declaration (private)
- pnginfo.h => png_info struct declaration (private)
- pngdebug.h => debugging macros (private)
- pngerror.c => Error/warning message I/O functions
- pngget.c => Functions for retrieving info from struct
- pngmem.c => Memory handling functions
- pngbar.png => PNG logo, 88x31
- pngnow.png => PNG logo, 98x31
- pngpread.c => Progressive reading functions
- pngread.c => Read data/helper high-level functions
- pngrio.c => Lowest-level data read I/O functions
- pngrtran.c => Read data transformation functions
- pngrutil.c => Read data utility functions
- pngset.c => Functions for storing data into the info_struct
- pngtest.c => Library test program
- pngtest.png => Library test sample image
- pngtrans.c => Common data transformation functions
- pngwio.c => Lowest-level write I/O functions
- pngwrite.c => High-level write functions
- pngwtran.c => Write data transformations
- pngwutil.c => Write utility functions
- arm => Contains optimized code for the ARM platform
- powerpc => Contains optimized code for the PowerPC platform
- contrib => Contributions
- arm-neon => Optimized code for ARM-NEON platform
- powerpc-vsx => Optimized code for POWERPC-VSX platform
- examples => Example programs
- gregbook => source code for PNG reading and writing, from
- Greg Roelofs' "PNG: The Definitive Guide",
- O'Reilly, 1999
- libtests => Test programs
- mips-msa => Optimized code for MIPS-MSA platform
- pngminim => Minimal decoder, encoder, and progressive decoder
- programs demonstrating use of pngusr.dfa
- pngminus => Simple pnm2png and png2pnm programs
- pngsuite => Test images
- testpngs
- tools => Various tools
- visupng => Contains a MSVC workspace for VisualPng
- intel => Optimized code for INTEL-SSE2 platform
- mips => Optimized code for MIPS platform
- projects => Contains project files and workspaces for
- building a DLL
- owatcom => Contains a WATCOM project for building libpng
- visualc71 => Contains a Microsoft Visual C++ (MSVC)
- workspace for building libpng and zlib
- vstudio => Contains a Microsoft Visual C++ (MSVC)
- workspace for building libpng and zlib
- scripts => Directory containing scripts for building libpng:
- (see scripts/README.txt for the list of scripts)
-
-Good luck, and happy coding!
-
- * Cosmin Truta (current maintainer, since 2018)
- * Glenn Randers-Pehrson (former maintainer, 1998-2018)
- * Andreas Eric Dilger (former maintainer, 1996-1997)
- * Guy Eric Schalnat (original author and former maintainer, 1995-1996)
- (formerly of Group 42, Inc.)
diff --git a/3rdparty/libpng/libpng-1.6.37/TODO b/3rdparty/libpng/libpng-1.6.37/TODO
deleted file mode 100644
index 562dab0..0000000
--- a/3rdparty/libpng/libpng-1.6.37/TODO
+++ /dev/null
@@ -1,23 +0,0 @@
-TODO - list of things to do for libpng:
-
-* Fix all defects (duh!)
-* Better C++ wrapper / full C++ implementation (?)
-* Fix the problems with C++ and 'extern "C"'.
-* cHRM transformation.
-* Palette creation.
-* "grayscale->palette" transformation and "palette->grayscale" detection.
-* Improved dithering.
-* Multi-lingual error and warning message support.
-* Complete sRGB transformation. (Currently it simply uses gamma=0.45455.)
-* Man pages for function calls.
-* Better documentation.
-* Better filter selection
- (e.g., counting huffman bits/precompression; filter inertia; filter costs).
-* Histogram creation.
-* Text conversion between different code pages (e.g., Latin-1 -> Mac).
-* Avoid building gamma tables whenever possible.
-* Greater precision in changing to linear gamma for compositing against
- background, and in doing rgb-to-gray transformations.
-* Investigate pre-incremented loop counters and other loop constructions.
-* Interpolated method of handling interlacing.
-* More validations for libpng transformations.
diff --git a/3rdparty/libpng/libpng-1.6.37/TRADEMARK b/3rdparty/libpng/libpng-1.6.37/TRADEMARK
deleted file mode 100644
index ac66718..0000000
--- a/3rdparty/libpng/libpng-1.6.37/TRADEMARK
+++ /dev/null
@@ -1,8 +0,0 @@
-TRADEMARK
-=========
-
-The name "libpng" has not been registered by the Copyright owners
-as a trademark in any jurisdiction. However, because libpng has
-been distributed and maintained world-wide, continually since 1995,
-the Copyright owners claim "common-law trademark protection" in any
-jurisdiction where common-law trademark is recognized.
diff --git a/3rdparty/libpng/libpng-1.6.37/aclocal.m4 b/3rdparty/libpng/libpng-1.6.37/aclocal.m4
deleted file mode 100644
index bc18c34..0000000
--- a/3rdparty/libpng/libpng-1.6.37/aclocal.m4
+++ /dev/null
@@ -1,1196 +0,0 @@
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diff --git a/3rdparty/libpng/libpng-1.6.37/arm/.deps/.dirstamp b/3rdparty/libpng/libpng-1.6.37/arm/.deps/.dirstamp
deleted file mode 100644
index e69de29..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/.deps/.dirstamp
+++ /dev/null
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/.deps/arm_init.Plo b/3rdparty/libpng/libpng-1.6.37/arm/.deps/arm_init.Plo
deleted file mode 100644
index 59225bc..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/.deps/arm_init.Plo
+++ /dev/null
@@ -1,134 +0,0 @@
-arm/arm_init.lo: arm/arm_init.c arm/../pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- config.h arm/../pnglibconf.h arm/../png.h arm/../pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- arm/../pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h \
- arm/../pnginfo.h arm/../pngdebug.h
-
-arm/../pngpriv.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
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-config.h:
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-arm/../pnglibconf.h:
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-arm/../png.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
-
-arm/../pngstruct.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
-
-arm/../pnginfo.h:
-
-arm/../pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/.deps/filter_neon.Plo b/3rdparty/libpng/libpng-1.6.37/arm/.deps/filter_neon.Plo
deleted file mode 100644
index d66afe1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/.deps/filter_neon.Plo
+++ /dev/null
@@ -1,10 +0,0 @@
-arm/filter_neon.lo: arm/filter_neon.S arm/../pngpriv.h config.h \
- arm/../pnglibconf.h arm/../png.h
-
-arm/../pngpriv.h:
-
-config.h:
-
-arm/../pnglibconf.h:
-
-arm/../png.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/.deps/filter_neon_intrinsics.Plo b/3rdparty/libpng/libpng-1.6.37/arm/.deps/filter_neon_intrinsics.Plo
deleted file mode 100644
index 68ad6c6..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/.deps/filter_neon_intrinsics.Plo
+++ /dev/null
@@ -1,135 +0,0 @@
-arm/filter_neon_intrinsics.lo: arm/filter_neon_intrinsics.c \
- arm/../pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- config.h arm/../pnglibconf.h arm/../png.h arm/../pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- arm/../pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h \
- arm/../pnginfo.h arm/../pngdebug.h
-
-arm/../pngpriv.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
-
-config.h:
-
-arm/../pnglibconf.h:
-
-arm/../png.h:
-
-arm/../pngconf.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
-
-arm/../pngstruct.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
-
-arm/../pnginfo.h:
-
-arm/../pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/.deps/palette_neon_intrinsics.Plo b/3rdparty/libpng/libpng-1.6.37/arm/.deps/palette_neon_intrinsics.Plo
deleted file mode 100644
index 7a8541f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/.deps/palette_neon_intrinsics.Plo
+++ /dev/null
@@ -1,135 +0,0 @@
-arm/palette_neon_intrinsics.lo: arm/palette_neon_intrinsics.c \
- arm/../pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- config.h arm/../pnglibconf.h arm/../png.h arm/../pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- arm/../pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h \
- arm/../pnginfo.h arm/../pngdebug.h
-
-arm/../pngpriv.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h:
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-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
-
-config.h:
-
-arm/../pnglibconf.h:
-
-arm/../png.h:
-
-arm/../pngconf.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
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-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
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-arm/../pngstruct.h:
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-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
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-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
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-arm/../pnginfo.h:
-
-arm/../pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/.dirstamp b/3rdparty/libpng/libpng-1.6.37/arm/.dirstamp
deleted file mode 100644
index e69de29..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/.dirstamp
+++ /dev/null
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/.libs/arm_init.o b/3rdparty/libpng/libpng-1.6.37/arm/.libs/arm_init.o
deleted file mode 100644
index 17826c7..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/.libs/arm_init.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/.libs/filter_neon.o b/3rdparty/libpng/libpng-1.6.37/arm/.libs/filter_neon.o
deleted file mode 100644
index 80d6628..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/.libs/filter_neon.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/.libs/filter_neon_intrinsics.o b/3rdparty/libpng/libpng-1.6.37/arm/.libs/filter_neon_intrinsics.o
deleted file mode 100644
index 340e8bb..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/.libs/filter_neon_intrinsics.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/.libs/palette_neon_intrinsics.o b/3rdparty/libpng/libpng-1.6.37/arm/.libs/palette_neon_intrinsics.o
deleted file mode 100644
index 28beeb3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/.libs/palette_neon_intrinsics.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/arm_init.c b/3rdparty/libpng/libpng-1.6.37/arm/arm_init.c
deleted file mode 100644
index a34ecdb..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/arm_init.c
+++ /dev/null
@@ -1,136 +0,0 @@
-
-/* arm_init.c - NEON optimised filter functions
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 2014,2016 Glenn Randers-Pehrson
- * Written by Mans Rullgard, 2011.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-/* Below, after checking __linux__, various non-C90 POSIX 1003.1 functions are
- * called.
- */
-#define _POSIX_SOURCE 1
-
-#include "../pngpriv.h"
-
-#ifdef PNG_READ_SUPPORTED
-
-#if PNG_ARM_NEON_OPT > 0
-#ifdef PNG_ARM_NEON_CHECK_SUPPORTED /* Do run-time checks */
-/* WARNING: it is strongly recommended that you do not build libpng with
- * run-time checks for CPU features if at all possible. In the case of the ARM
- * NEON instructions there is no processor-specific way of detecting the
- * presence of the required support, therefore run-time detection is extremely
- * OS specific.
- *
- * You may set the macro PNG_ARM_NEON_FILE to the file name of file containing
- * a fragment of C source code which defines the png_have_neon function. There
- * are a number of implementations in contrib/arm-neon, but the only one that
- * has partial support is contrib/arm-neon/linux.c - a generic Linux
- * implementation which reads /proc/cpufino.
- */
-#ifndef PNG_ARM_NEON_FILE
-# ifdef __linux__
-# define PNG_ARM_NEON_FILE "contrib/arm-neon/linux.c"
-# endif
-#endif
-
-#ifdef PNG_ARM_NEON_FILE
-
-#include <signal.h> /* for sig_atomic_t */
-static int png_have_neon(png_structp png_ptr);
-#include PNG_ARM_NEON_FILE
-
-#else /* PNG_ARM_NEON_FILE */
-# error "PNG_ARM_NEON_FILE undefined: no support for run-time ARM NEON checks"
-#endif /* PNG_ARM_NEON_FILE */
-#endif /* PNG_ARM_NEON_CHECK_SUPPORTED */
-
-#ifndef PNG_ALIGNED_MEMORY_SUPPORTED
-# error "ALIGNED_MEMORY is required; set: -DPNG_ALIGNED_MEMORY_SUPPORTED"
-#endif
-
-void
-png_init_filter_functions_neon(png_structp pp, unsigned int bpp)
-{
- /* The switch statement is compiled in for ARM_NEON_API, the call to
- * png_have_neon is compiled in for ARM_NEON_CHECK. If both are defined
- * the check is only performed if the API has not set the NEON option on
- * or off explicitly. In this case the check controls what happens.
- *
- * If the CHECK is not compiled in and the option is UNSET the behavior prior
- * to 1.6.7 was to use the NEON code - this was a bug caused by having the
- * wrong order of the 'ON' and 'default' cases. UNSET now defaults to OFF,
- * as documented in png.h
- */
- png_debug(1, "in png_init_filter_functions_neon");
-#ifdef PNG_ARM_NEON_API_SUPPORTED
- switch ((pp->options >> PNG_ARM_NEON) & 3)
- {
- case PNG_OPTION_UNSET:
- /* Allow the run-time check to execute if it has been enabled -
- * thus both API and CHECK can be turned on. If it isn't supported
- * this case will fall through to the 'default' below, which just
- * returns.
- */
-#endif /* PNG_ARM_NEON_API_SUPPORTED */
-#ifdef PNG_ARM_NEON_CHECK_SUPPORTED
- {
- static volatile sig_atomic_t no_neon = -1; /* not checked */
-
- if (no_neon < 0)
- no_neon = !png_have_neon(pp);
-
- if (no_neon)
- return;
- }
-#ifdef PNG_ARM_NEON_API_SUPPORTED
- break;
-#endif
-#endif /* PNG_ARM_NEON_CHECK_SUPPORTED */
-
-#ifdef PNG_ARM_NEON_API_SUPPORTED
- default: /* OFF or INVALID */
- return;
-
- case PNG_OPTION_ON:
- /* Option turned on */
- break;
- }
-#endif
-
- /* IMPORTANT: any new external functions used here must be declared using
- * PNG_INTERNAL_FUNCTION in ../pngpriv.h. This is required so that the
- * 'prefix' option to configure works:
- *
- * ./configure --with-libpng-prefix=foobar_
- *
- * Verify you have got this right by running the above command, doing a build
- * and examining pngprefix.h; it must contain a #define for every external
- * function you add. (Notice that this happens automatically for the
- * initialization function.)
- */
- pp->read_filter[PNG_FILTER_VALUE_UP-1] = png_read_filter_row_up_neon;
-
- if (bpp == 3)
- {
- pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub3_neon;
- pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg3_neon;
- pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
- png_read_filter_row_paeth3_neon;
- }
-
- else if (bpp == 4)
- {
- pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub4_neon;
- pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg4_neon;
- pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
- png_read_filter_row_paeth4_neon;
- }
-}
-#endif /* PNG_ARM_NEON_OPT > 0 */
-#endif /* READ */
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/arm_init.lo b/3rdparty/libpng/libpng-1.6.37/arm/arm_init.lo
deleted file mode 100644
index 653af0c..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/arm_init.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# arm/arm_init.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/arm_init.o'
-
-# Name of the non-PIC object
-non_pic_object='arm_init.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/arm_init.o b/3rdparty/libpng/libpng-1.6.37/arm/arm_init.o
deleted file mode 100644
index 72f84f1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/arm_init.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/filter_neon.S b/3rdparty/libpng/libpng-1.6.37/arm/filter_neon.S
deleted file mode 100644
index 2308aad..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/filter_neon.S
+++ /dev/null
@@ -1,253 +0,0 @@
-
-/* filter_neon.S - NEON optimised filter functions
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 2014,2017 Glenn Randers-Pehrson
- * Written by Mans Rullgard, 2011.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-/* This is required to get the symbol renames, which are #defines, and the
- * definitions (or not) of PNG_ARM_NEON_OPT and PNG_ARM_NEON_IMPLEMENTATION.
- */
-#define PNG_VERSION_INFO_ONLY
-#include "../pngpriv.h"
-
-#if (defined(__linux__) || defined(__FreeBSD__)) && defined(__ELF__)
-.section .note.GNU-stack,"",%progbits /* mark stack as non-executable */
-#endif
-
-#ifdef PNG_READ_SUPPORTED
-
-/* Assembler NEON support - only works for 32-bit ARM (i.e. it does not work for
- * ARM64). The code in arm/filter_neon_intrinsics.c supports ARM64, however it
- * only works if -mfpu=neon is specified on the GCC command line. See pngpriv.h
- * for the logic which sets PNG_USE_ARM_NEON_ASM:
- */
-#if PNG_ARM_NEON_IMPLEMENTATION == 2 /* hand-coded assembler */
-
-#if PNG_ARM_NEON_OPT > 0
-
-#ifdef __ELF__
-# define ELF
-#else
-# define ELF @
-#endif
-
- .arch armv7-a
- .fpu neon
-
-.macro func name, export=0
- .macro endfunc
-ELF .size \name, . - \name
- .endfunc
- .purgem endfunc
- .endm
- .text
-
- /* Explicitly specifying alignment here because some versions of
- * GAS don't align code correctly. This is harmless in correctly
- * written versions of GAS.
- */
- .align 2
-
- .if \export
- .global \name
- .endif
-ELF .type \name, STT_FUNC
- .func \name
-\name:
-.endm
-
-func png_read_filter_row_sub4_neon, export=1
- ldr r3, [r0, #4] @ rowbytes
- vmov.i8 d3, #0
-1:
- vld4.32 {d4[],d5[],d6[],d7[]}, [r1,:128]
- vadd.u8 d0, d3, d4
- vadd.u8 d1, d0, d5
- vadd.u8 d2, d1, d6
- vadd.u8 d3, d2, d7
- vst4.32 {d0[0],d1[0],d2[0],d3[0]},[r1,:128]!
- subs r3, r3, #16
- bgt 1b
-
- bx lr
-endfunc
-
-func png_read_filter_row_sub3_neon, export=1
- ldr r3, [r0, #4] @ rowbytes
- vmov.i8 d3, #0
- mov r0, r1
- mov r2, #3
- mov r12, #12
- vld1.8 {q11}, [r0], r12
-1:
- vext.8 d5, d22, d23, #3
- vadd.u8 d0, d3, d22
- vext.8 d6, d22, d23, #6
- vadd.u8 d1, d0, d5
- vext.8 d7, d23, d23, #1
- vld1.8 {q11}, [r0], r12
- vst1.32 {d0[0]}, [r1,:32], r2
- vadd.u8 d2, d1, d6
- vst1.32 {d1[0]}, [r1], r2
- vadd.u8 d3, d2, d7
- vst1.32 {d2[0]}, [r1], r2
- vst1.32 {d3[0]}, [r1], r2
- subs r3, r3, #12
- bgt 1b
-
- bx lr
-endfunc
-
-func png_read_filter_row_up_neon, export=1
- ldr r3, [r0, #4] @ rowbytes
-1:
- vld1.8 {q0}, [r1,:128]
- vld1.8 {q1}, [r2,:128]!
- vadd.u8 q0, q0, q1
- vst1.8 {q0}, [r1,:128]!
- subs r3, r3, #16
- bgt 1b
-
- bx lr
-endfunc
-
-func png_read_filter_row_avg4_neon, export=1
- ldr r12, [r0, #4] @ rowbytes
- vmov.i8 d3, #0
-1:
- vld4.32 {d4[],d5[],d6[],d7[]}, [r1,:128]
- vld4.32 {d16[],d17[],d18[],d19[]},[r2,:128]!
- vhadd.u8 d0, d3, d16
- vadd.u8 d0, d0, d4
- vhadd.u8 d1, d0, d17
- vadd.u8 d1, d1, d5
- vhadd.u8 d2, d1, d18
- vadd.u8 d2, d2, d6
- vhadd.u8 d3, d2, d19
- vadd.u8 d3, d3, d7
- vst4.32 {d0[0],d1[0],d2[0],d3[0]},[r1,:128]!
- subs r12, r12, #16
- bgt 1b
-
- bx lr
-endfunc
-
-func png_read_filter_row_avg3_neon, export=1
- push {r4,lr}
- ldr r12, [r0, #4] @ rowbytes
- vmov.i8 d3, #0
- mov r0, r1
- mov r4, #3
- mov lr, #12
- vld1.8 {q11}, [r0], lr
-1:
- vld1.8 {q10}, [r2], lr
- vext.8 d5, d22, d23, #3
- vhadd.u8 d0, d3, d20
- vext.8 d17, d20, d21, #3
- vadd.u8 d0, d0, d22
- vext.8 d6, d22, d23, #6
- vhadd.u8 d1, d0, d17
- vext.8 d18, d20, d21, #6
- vadd.u8 d1, d1, d5
- vext.8 d7, d23, d23, #1
- vld1.8 {q11}, [r0], lr
- vst1.32 {d0[0]}, [r1,:32], r4
- vhadd.u8 d2, d1, d18
- vst1.32 {d1[0]}, [r1], r4
- vext.8 d19, d21, d21, #1
- vadd.u8 d2, d2, d6
- vhadd.u8 d3, d2, d19
- vst1.32 {d2[0]}, [r1], r4
- vadd.u8 d3, d3, d7
- vst1.32 {d3[0]}, [r1], r4
- subs r12, r12, #12
- bgt 1b
-
- pop {r4,pc}
-endfunc
-
-.macro paeth rx, ra, rb, rc
- vaddl.u8 q12, \ra, \rb @ a + b
- vaddl.u8 q15, \rc, \rc @ 2*c
- vabdl.u8 q13, \rb, \rc @ pa
- vabdl.u8 q14, \ra, \rc @ pb
- vabd.u16 q15, q12, q15 @ pc
- vcle.u16 q12, q13, q14 @ pa <= pb
- vcle.u16 q13, q13, q15 @ pa <= pc
- vcle.u16 q14, q14, q15 @ pb <= pc
- vand q12, q12, q13 @ pa <= pb && pa <= pc
- vmovn.u16 d28, q14
- vmovn.u16 \rx, q12
- vbsl d28, \rb, \rc
- vbsl \rx, \ra, d28
-.endm
-
-func png_read_filter_row_paeth4_neon, export=1
- ldr r12, [r0, #4] @ rowbytes
- vmov.i8 d3, #0
- vmov.i8 d20, #0
-1:
- vld4.32 {d4[],d5[],d6[],d7[]}, [r1,:128]
- vld4.32 {d16[],d17[],d18[],d19[]},[r2,:128]!
- paeth d0, d3, d16, d20
- vadd.u8 d0, d0, d4
- paeth d1, d0, d17, d16
- vadd.u8 d1, d1, d5
- paeth d2, d1, d18, d17
- vadd.u8 d2, d2, d6
- paeth d3, d2, d19, d18
- vmov d20, d19
- vadd.u8 d3, d3, d7
- vst4.32 {d0[0],d1[0],d2[0],d3[0]},[r1,:128]!
- subs r12, r12, #16
- bgt 1b
-
- bx lr
-endfunc
-
-func png_read_filter_row_paeth3_neon, export=1
- push {r4,lr}
- ldr r12, [r0, #4] @ rowbytes
- vmov.i8 d3, #0
- vmov.i8 d4, #0
- mov r0, r1
- mov r4, #3
- mov lr, #12
- vld1.8 {q11}, [r0], lr
-1:
- vld1.8 {q10}, [r2], lr
- paeth d0, d3, d20, d4
- vext.8 d5, d22, d23, #3
- vadd.u8 d0, d0, d22
- vext.8 d17, d20, d21, #3
- paeth d1, d0, d17, d20
- vst1.32 {d0[0]}, [r1,:32], r4
- vext.8 d6, d22, d23, #6
- vadd.u8 d1, d1, d5
- vext.8 d18, d20, d21, #6
- paeth d2, d1, d18, d17
- vext.8 d7, d23, d23, #1
- vld1.8 {q11}, [r0], lr
- vst1.32 {d1[0]}, [r1], r4
- vadd.u8 d2, d2, d6
- vext.8 d19, d21, d21, #1
- paeth d3, d2, d19, d18
- vst1.32 {d2[0]}, [r1], r4
- vmov d4, d19
- vadd.u8 d3, d3, d7
- vst1.32 {d3[0]}, [r1], r4
- subs r12, r12, #12
- bgt 1b
-
- pop {r4,pc}
-endfunc
-#endif /* PNG_ARM_NEON_OPT > 0 */
-#endif /* PNG_ARM_NEON_IMPLEMENTATION == 2 (assembler) */
-#endif /* READ */
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/filter_neon.lo b/3rdparty/libpng/libpng-1.6.37/arm/filter_neon.lo
deleted file mode 100644
index 914c4a6..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/filter_neon.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# arm/filter_neon.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/filter_neon.o'
-
-# Name of the non-PIC object
-non_pic_object='filter_neon.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/filter_neon.o b/3rdparty/libpng/libpng-1.6.37/arm/filter_neon.o
deleted file mode 100644
index 80d6628..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/filter_neon.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/filter_neon_intrinsics.c b/3rdparty/libpng/libpng-1.6.37/arm/filter_neon_intrinsics.c
deleted file mode 100644
index 553c0be..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/filter_neon_intrinsics.c
+++ /dev/null
@@ -1,402 +0,0 @@
-
-/* filter_neon_intrinsics.c - NEON optimised filter functions
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 2014,2016 Glenn Randers-Pehrson
- * Written by James Yu <james.yu at linaro.org>, October 2013.
- * Based on filter_neon.S, written by Mans Rullgard, 2011.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#include "../pngpriv.h"
-
-#ifdef PNG_READ_SUPPORTED
-
-/* This code requires -mfpu=neon on the command line: */
-#if PNG_ARM_NEON_IMPLEMENTATION == 1 /* intrinsics code from pngpriv.h */
-
-#if defined(_MSC_VER) && defined(_M_ARM64)
-# include <arm64_neon.h>
-#else
-# include <arm_neon.h>
-#endif
-
-/* libpng row pointers are not necessarily aligned to any particular boundary,
- * however this code will only work with appropriate alignment. arm/arm_init.c
- * checks for this (and will not compile unless it is done). This code uses
- * variants of png_aligncast to avoid compiler warnings.
- */
-#define png_ptr(type,pointer) png_aligncast(type *,pointer)
-#define png_ptrc(type,pointer) png_aligncastconst(const type *,pointer)
-
-/* The following relies on a variable 'temp_pointer' being declared with type
- * 'type'. This is written this way just to hide the GCC strict aliasing
- * warning; note that the code is safe because there never is an alias between
- * the input and output pointers.
- *
- * When compiling with MSVC ARM64, the png_ldr macro can't be passed directly
- * to vst4_lane_u32, because of an internal compiler error inside MSVC.
- * To avoid this compiler bug, we use a temporary variable (vdest_val) to store
- * the result of png_ldr.
- */
-#define png_ldr(type,pointer)\
- (temp_pointer = png_ptr(type,pointer), *temp_pointer)
-
-#if PNG_ARM_NEON_OPT > 0
-
-void
-png_read_filter_row_up_neon(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- png_bytep rp = row;
- png_bytep rp_stop = row + row_info->rowbytes;
- png_const_bytep pp = prev_row;
-
- png_debug(1, "in png_read_filter_row_up_neon");
-
- for (; rp < rp_stop; rp += 16, pp += 16)
- {
- uint8x16_t qrp, qpp;
-
- qrp = vld1q_u8(rp);
- qpp = vld1q_u8(pp);
- qrp = vaddq_u8(qrp, qpp);
- vst1q_u8(rp, qrp);
- }
-}
-
-void
-png_read_filter_row_sub3_neon(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- png_bytep rp = row;
- png_bytep rp_stop = row + row_info->rowbytes;
-
- uint8x16_t vtmp = vld1q_u8(rp);
- uint8x8x2_t *vrpt = png_ptr(uint8x8x2_t, &vtmp);
- uint8x8x2_t vrp = *vrpt;
-
- uint8x8x4_t vdest;
- vdest.val[3] = vdup_n_u8(0);
-
- png_debug(1, "in png_read_filter_row_sub3_neon");
-
- for (; rp < rp_stop;)
- {
- uint8x8_t vtmp1, vtmp2;
- uint32x2_t *temp_pointer;
-
- vtmp1 = vext_u8(vrp.val[0], vrp.val[1], 3);
- vdest.val[0] = vadd_u8(vdest.val[3], vrp.val[0]);
- vtmp2 = vext_u8(vrp.val[0], vrp.val[1], 6);
- vdest.val[1] = vadd_u8(vdest.val[0], vtmp1);
-
- vtmp1 = vext_u8(vrp.val[1], vrp.val[1], 1);
- vdest.val[2] = vadd_u8(vdest.val[1], vtmp2);
- vdest.val[3] = vadd_u8(vdest.val[2], vtmp1);
-
- vtmp = vld1q_u8(rp + 12);
- vrpt = png_ptr(uint8x8x2_t, &vtmp);
- vrp = *vrpt;
-
- vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[0]), 0);
- rp += 3;
- vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[1]), 0);
- rp += 3;
- vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[2]), 0);
- rp += 3;
- vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[3]), 0);
- rp += 3;
- }
-
- PNG_UNUSED(prev_row)
-}
-
-void
-png_read_filter_row_sub4_neon(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- png_bytep rp = row;
- png_bytep rp_stop = row + row_info->rowbytes;
-
- uint8x8x4_t vdest;
- vdest.val[3] = vdup_n_u8(0);
-
- png_debug(1, "in png_read_filter_row_sub4_neon");
-
- for (; rp < rp_stop; rp += 16)
- {
- uint32x2x4_t vtmp = vld4_u32(png_ptr(uint32_t,rp));
- uint8x8x4_t *vrpt = png_ptr(uint8x8x4_t,&vtmp);
- uint8x8x4_t vrp = *vrpt;
- uint32x2x4_t *temp_pointer;
- uint32x2x4_t vdest_val;
-
- vdest.val[0] = vadd_u8(vdest.val[3], vrp.val[0]);
- vdest.val[1] = vadd_u8(vdest.val[0], vrp.val[1]);
- vdest.val[2] = vadd_u8(vdest.val[1], vrp.val[2]);
- vdest.val[3] = vadd_u8(vdest.val[2], vrp.val[3]);
-
- vdest_val = png_ldr(uint32x2x4_t, &vdest);
- vst4_lane_u32(png_ptr(uint32_t,rp), vdest_val, 0);
- }
-
- PNG_UNUSED(prev_row)
-}
-
-void
-png_read_filter_row_avg3_neon(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- png_bytep rp = row;
- png_const_bytep pp = prev_row;
- png_bytep rp_stop = row + row_info->rowbytes;
-
- uint8x16_t vtmp;
- uint8x8x2_t *vrpt;
- uint8x8x2_t vrp;
- uint8x8x4_t vdest;
- vdest.val[3] = vdup_n_u8(0);
-
- vtmp = vld1q_u8(rp);
- vrpt = png_ptr(uint8x8x2_t,&vtmp);
- vrp = *vrpt;
-
- png_debug(1, "in png_read_filter_row_avg3_neon");
-
- for (; rp < rp_stop; pp += 12)
- {
- uint8x8_t vtmp1, vtmp2, vtmp3;
-
- uint8x8x2_t *vppt;
- uint8x8x2_t vpp;
-
- uint32x2_t *temp_pointer;
-
- vtmp = vld1q_u8(pp);
- vppt = png_ptr(uint8x8x2_t,&vtmp);
- vpp = *vppt;
-
- vtmp1 = vext_u8(vrp.val[0], vrp.val[1], 3);
- vdest.val[0] = vhadd_u8(vdest.val[3], vpp.val[0]);
- vdest.val[0] = vadd_u8(vdest.val[0], vrp.val[0]);
-
- vtmp2 = vext_u8(vpp.val[0], vpp.val[1], 3);
- vtmp3 = vext_u8(vrp.val[0], vrp.val[1], 6);
- vdest.val[1] = vhadd_u8(vdest.val[0], vtmp2);
- vdest.val[1] = vadd_u8(vdest.val[1], vtmp1);
-
- vtmp2 = vext_u8(vpp.val[0], vpp.val[1], 6);
- vtmp1 = vext_u8(vrp.val[1], vrp.val[1], 1);
-
- vtmp = vld1q_u8(rp + 12);
- vrpt = png_ptr(uint8x8x2_t,&vtmp);
- vrp = *vrpt;
-
- vdest.val[2] = vhadd_u8(vdest.val[1], vtmp2);
- vdest.val[2] = vadd_u8(vdest.val[2], vtmp3);
-
- vtmp2 = vext_u8(vpp.val[1], vpp.val[1], 1);
-
- vdest.val[3] = vhadd_u8(vdest.val[2], vtmp2);
- vdest.val[3] = vadd_u8(vdest.val[3], vtmp1);
-
- vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[0]), 0);
- rp += 3;
- vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[1]), 0);
- rp += 3;
- vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[2]), 0);
- rp += 3;
- vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[3]), 0);
- rp += 3;
- }
-}
-
-void
-png_read_filter_row_avg4_neon(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- png_bytep rp = row;
- png_bytep rp_stop = row + row_info->rowbytes;
- png_const_bytep pp = prev_row;
-
- uint8x8x4_t vdest;
- vdest.val[3] = vdup_n_u8(0);
-
- png_debug(1, "in png_read_filter_row_avg4_neon");
-
- for (; rp < rp_stop; rp += 16, pp += 16)
- {
- uint32x2x4_t vtmp;
- uint8x8x4_t *vrpt, *vppt;
- uint8x8x4_t vrp, vpp;
- uint32x2x4_t *temp_pointer;
- uint32x2x4_t vdest_val;
-
- vtmp = vld4_u32(png_ptr(uint32_t,rp));
- vrpt = png_ptr(uint8x8x4_t,&vtmp);
- vrp = *vrpt;
- vtmp = vld4_u32(png_ptrc(uint32_t,pp));
- vppt = png_ptr(uint8x8x4_t,&vtmp);
- vpp = *vppt;
-
- vdest.val[0] = vhadd_u8(vdest.val[3], vpp.val[0]);
- vdest.val[0] = vadd_u8(vdest.val[0], vrp.val[0]);
- vdest.val[1] = vhadd_u8(vdest.val[0], vpp.val[1]);
- vdest.val[1] = vadd_u8(vdest.val[1], vrp.val[1]);
- vdest.val[2] = vhadd_u8(vdest.val[1], vpp.val[2]);
- vdest.val[2] = vadd_u8(vdest.val[2], vrp.val[2]);
- vdest.val[3] = vhadd_u8(vdest.val[2], vpp.val[3]);
- vdest.val[3] = vadd_u8(vdest.val[3], vrp.val[3]);
-
- vdest_val = png_ldr(uint32x2x4_t, &vdest);
- vst4_lane_u32(png_ptr(uint32_t,rp), vdest_val, 0);
- }
-}
-
-static uint8x8_t
-paeth(uint8x8_t a, uint8x8_t b, uint8x8_t c)
-{
- uint8x8_t d, e;
- uint16x8_t p1, pa, pb, pc;
-
- p1 = vaddl_u8(a, b); /* a + b */
- pc = vaddl_u8(c, c); /* c * 2 */
- pa = vabdl_u8(b, c); /* pa */
- pb = vabdl_u8(a, c); /* pb */
- pc = vabdq_u16(p1, pc); /* pc */
-
- p1 = vcleq_u16(pa, pb); /* pa <= pb */
- pa = vcleq_u16(pa, pc); /* pa <= pc */
- pb = vcleq_u16(pb, pc); /* pb <= pc */
-
- p1 = vandq_u16(p1, pa); /* pa <= pb && pa <= pc */
-
- d = vmovn_u16(pb);
- e = vmovn_u16(p1);
-
- d = vbsl_u8(d, b, c);
- e = vbsl_u8(e, a, d);
-
- return e;
-}
-
-void
-png_read_filter_row_paeth3_neon(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- png_bytep rp = row;
- png_const_bytep pp = prev_row;
- png_bytep rp_stop = row + row_info->rowbytes;
-
- uint8x16_t vtmp;
- uint8x8x2_t *vrpt;
- uint8x8x2_t vrp;
- uint8x8_t vlast = vdup_n_u8(0);
- uint8x8x4_t vdest;
- vdest.val[3] = vdup_n_u8(0);
-
- vtmp = vld1q_u8(rp);
- vrpt = png_ptr(uint8x8x2_t,&vtmp);
- vrp = *vrpt;
-
- png_debug(1, "in png_read_filter_row_paeth3_neon");
-
- for (; rp < rp_stop; pp += 12)
- {
- uint8x8x2_t *vppt;
- uint8x8x2_t vpp;
- uint8x8_t vtmp1, vtmp2, vtmp3;
- uint32x2_t *temp_pointer;
-
- vtmp = vld1q_u8(pp);
- vppt = png_ptr(uint8x8x2_t,&vtmp);
- vpp = *vppt;
-
- vdest.val[0] = paeth(vdest.val[3], vpp.val[0], vlast);
- vdest.val[0] = vadd_u8(vdest.val[0], vrp.val[0]);
-
- vtmp1 = vext_u8(vrp.val[0], vrp.val[1], 3);
- vtmp2 = vext_u8(vpp.val[0], vpp.val[1], 3);
- vdest.val[1] = paeth(vdest.val[0], vtmp2, vpp.val[0]);
- vdest.val[1] = vadd_u8(vdest.val[1], vtmp1);
-
- vtmp1 = vext_u8(vrp.val[0], vrp.val[1], 6);
- vtmp3 = vext_u8(vpp.val[0], vpp.val[1], 6);
- vdest.val[2] = paeth(vdest.val[1], vtmp3, vtmp2);
- vdest.val[2] = vadd_u8(vdest.val[2], vtmp1);
-
- vtmp1 = vext_u8(vrp.val[1], vrp.val[1], 1);
- vtmp2 = vext_u8(vpp.val[1], vpp.val[1], 1);
-
- vtmp = vld1q_u8(rp + 12);
- vrpt = png_ptr(uint8x8x2_t,&vtmp);
- vrp = *vrpt;
-
- vdest.val[3] = paeth(vdest.val[2], vtmp2, vtmp3);
- vdest.val[3] = vadd_u8(vdest.val[3], vtmp1);
-
- vlast = vtmp2;
-
- vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[0]), 0);
- rp += 3;
- vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[1]), 0);
- rp += 3;
- vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[2]), 0);
- rp += 3;
- vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[3]), 0);
- rp += 3;
- }
-}
-
-void
-png_read_filter_row_paeth4_neon(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- png_bytep rp = row;
- png_bytep rp_stop = row + row_info->rowbytes;
- png_const_bytep pp = prev_row;
-
- uint8x8_t vlast = vdup_n_u8(0);
- uint8x8x4_t vdest;
- vdest.val[3] = vdup_n_u8(0);
-
- png_debug(1, "in png_read_filter_row_paeth4_neon");
-
- for (; rp < rp_stop; rp += 16, pp += 16)
- {
- uint32x2x4_t vtmp;
- uint8x8x4_t *vrpt, *vppt;
- uint8x8x4_t vrp, vpp;
- uint32x2x4_t *temp_pointer;
- uint32x2x4_t vdest_val;
-
- vtmp = vld4_u32(png_ptr(uint32_t,rp));
- vrpt = png_ptr(uint8x8x4_t,&vtmp);
- vrp = *vrpt;
- vtmp = vld4_u32(png_ptrc(uint32_t,pp));
- vppt = png_ptr(uint8x8x4_t,&vtmp);
- vpp = *vppt;
-
- vdest.val[0] = paeth(vdest.val[3], vpp.val[0], vlast);
- vdest.val[0] = vadd_u8(vdest.val[0], vrp.val[0]);
- vdest.val[1] = paeth(vdest.val[0], vpp.val[1], vpp.val[0]);
- vdest.val[1] = vadd_u8(vdest.val[1], vrp.val[1]);
- vdest.val[2] = paeth(vdest.val[1], vpp.val[2], vpp.val[1]);
- vdest.val[2] = vadd_u8(vdest.val[2], vrp.val[2]);
- vdest.val[3] = paeth(vdest.val[2], vpp.val[3], vpp.val[2]);
- vdest.val[3] = vadd_u8(vdest.val[3], vrp.val[3]);
-
- vlast = vpp.val[3];
-
- vdest_val = png_ldr(uint32x2x4_t, &vdest);
- vst4_lane_u32(png_ptr(uint32_t,rp), vdest_val, 0);
- }
-}
-
-#endif /* PNG_ARM_NEON_OPT > 0 */
-#endif /* PNG_ARM_NEON_IMPLEMENTATION == 1 (intrinsics) */
-#endif /* READ */
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/filter_neon_intrinsics.lo b/3rdparty/libpng/libpng-1.6.37/arm/filter_neon_intrinsics.lo
deleted file mode 100644
index 58e0d80..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/filter_neon_intrinsics.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# arm/filter_neon_intrinsics.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/filter_neon_intrinsics.o'
-
-# Name of the non-PIC object
-non_pic_object='filter_neon_intrinsics.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/filter_neon_intrinsics.o b/3rdparty/libpng/libpng-1.6.37/arm/filter_neon_intrinsics.o
deleted file mode 100644
index 340e8bb..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/filter_neon_intrinsics.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/palette_neon_intrinsics.c b/3rdparty/libpng/libpng-1.6.37/arm/palette_neon_intrinsics.c
deleted file mode 100644
index b4d1fd2..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/palette_neon_intrinsics.c
+++ /dev/null
@@ -1,149 +0,0 @@
-
-/* palette_neon_intrinsics.c - NEON optimised palette expansion functions
- *
- * Copyright (c) 2018-2019 Cosmin Truta
- * Copyright (c) 2017-2018 Arm Holdings. All rights reserved.
- * Written by Richard Townsend <Richard.Townsend@arm.com>, February 2017.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#include "../pngpriv.h"
-
-#if PNG_ARM_NEON_IMPLEMENTATION == 1
-
-#if defined(_MSC_VER) && defined(_M_ARM64)
-# include <arm64_neon.h>
-#else
-# include <arm_neon.h>
-#endif
-
-/* Build an RGBA8 palette from the separate RGB and alpha palettes. */
-void
-png_riffle_palette_neon(png_structrp png_ptr)
-{
- png_const_colorp palette = png_ptr->palette;
- png_bytep riffled_palette = png_ptr->riffled_palette;
- png_const_bytep trans_alpha = png_ptr->trans_alpha;
- int num_trans = png_ptr->num_trans;
- int i;
-
- png_debug(1, "in png_riffle_palette_neon");
-
- /* Initially black, opaque. */
- uint8x16x4_t w = {{
- vdupq_n_u8(0x00),
- vdupq_n_u8(0x00),
- vdupq_n_u8(0x00),
- vdupq_n_u8(0xff),
- }};
-
- /* First, riffle the RGB colours into an RGBA8 palette.
- * The alpha component is set to opaque for now.
- */
- for (i = 0; i < 256; i += 16)
- {
- uint8x16x3_t v = vld3q_u8((png_const_bytep)(palette + i));
- w.val[0] = v.val[0];
- w.val[1] = v.val[1];
- w.val[2] = v.val[2];
- vst4q_u8(riffled_palette + (i << 2), w);
- }
-
- /* Fix up the missing transparency values. */
- for (i = 0; i < num_trans; i++)
- riffled_palette[(i << 2) + 3] = trans_alpha[i];
-}
-
-/* Expands a palettized row into RGBA8. */
-int
-png_do_expand_palette_rgba8_neon(png_structrp png_ptr, png_row_infop row_info,
- png_const_bytep row, png_bytepp ssp, png_bytepp ddp)
-{
- png_uint_32 row_width = row_info->width;
- const png_uint_32 *riffled_palette =
- (const png_uint_32 *)png_ptr->riffled_palette;
- const png_int_32 pixels_per_chunk = 4;
- int i;
-
- png_debug(1, "in png_do_expand_palette_rgba8_neon");
-
- if (row_width < pixels_per_chunk)
- return 0;
-
- /* This function originally gets the last byte of the output row.
- * The NEON part writes forward from a given position, so we have
- * to seek this back by 4 pixels x 4 bytes.
- */
- *ddp = *ddp - ((pixels_per_chunk * sizeof(png_uint_32)) - 1);
-
- for (i = 0; i < row_width; i += pixels_per_chunk)
- {
- uint32x4_t cur;
- png_bytep sp = *ssp - i, dp = *ddp - (i << 2);
- cur = vld1q_dup_u32 (riffled_palette + *(sp - 3));
- cur = vld1q_lane_u32(riffled_palette + *(sp - 2), cur, 1);
- cur = vld1q_lane_u32(riffled_palette + *(sp - 1), cur, 2);
- cur = vld1q_lane_u32(riffled_palette + *(sp - 0), cur, 3);
- vst1q_u32((void *)dp, cur);
- }
- if (i != row_width)
- {
- /* Remove the amount that wasn't processed. */
- i -= pixels_per_chunk;
- }
-
- /* Decrement output pointers. */
- *ssp = *ssp - i;
- *ddp = *ddp - (i << 2);
- return i;
-}
-
-/* Expands a palettized row into RGB8. */
-int
-png_do_expand_palette_rgb8_neon(png_structrp png_ptr, png_row_infop row_info,
- png_const_bytep row, png_bytepp ssp, png_bytepp ddp)
-{
- png_uint_32 row_width = row_info->width;
- png_const_bytep palette = (png_const_bytep)png_ptr->palette;
- const png_uint_32 pixels_per_chunk = 8;
- int i;
-
- png_debug(1, "in png_do_expand_palette_rgb8_neon");
-
- if (row_width <= pixels_per_chunk)
- return 0;
-
- /* Seeking this back by 8 pixels x 3 bytes. */
- *ddp = *ddp - ((pixels_per_chunk * sizeof(png_color)) - 1);
-
- for (i = 0; i < row_width; i += pixels_per_chunk)
- {
- uint8x8x3_t cur;
- png_bytep sp = *ssp - i, dp = *ddp - ((i << 1) + i);
- cur = vld3_dup_u8(palette + sizeof(png_color) * (*(sp - 7)));
- cur = vld3_lane_u8(palette + sizeof(png_color) * (*(sp - 6)), cur, 1);
- cur = vld3_lane_u8(palette + sizeof(png_color) * (*(sp - 5)), cur, 2);
- cur = vld3_lane_u8(palette + sizeof(png_color) * (*(sp - 4)), cur, 3);
- cur = vld3_lane_u8(palette + sizeof(png_color) * (*(sp - 3)), cur, 4);
- cur = vld3_lane_u8(palette + sizeof(png_color) * (*(sp - 2)), cur, 5);
- cur = vld3_lane_u8(palette + sizeof(png_color) * (*(sp - 1)), cur, 6);
- cur = vld3_lane_u8(palette + sizeof(png_color) * (*(sp - 0)), cur, 7);
- vst3_u8((void *)dp, cur);
- }
-
- if (i != row_width)
- {
- /* Remove the amount that wasn't processed. */
- i -= pixels_per_chunk;
- }
-
- /* Decrement output pointers. */
- *ssp = *ssp - i;
- *ddp = *ddp - ((i << 1) + i);
- return i;
-}
-
-#endif /* PNG_ARM_NEON_IMPLEMENTATION */
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/palette_neon_intrinsics.lo b/3rdparty/libpng/libpng-1.6.37/arm/palette_neon_intrinsics.lo
deleted file mode 100644
index c72da59..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/palette_neon_intrinsics.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# arm/palette_neon_intrinsics.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/palette_neon_intrinsics.o'
-
-# Name of the non-PIC object
-non_pic_object='palette_neon_intrinsics.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/arm/palette_neon_intrinsics.o b/3rdparty/libpng/libpng-1.6.37/arm/palette_neon_intrinsics.o
deleted file mode 100644
index 28beeb3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/arm/palette_neon_intrinsics.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/autogen.sh b/3rdparty/libpng/libpng-1.6.37/autogen.sh
deleted file mode 100755
index a46daf6..0000000
--- a/3rdparty/libpng/libpng-1.6.37/autogen.sh
+++ /dev/null
@@ -1,225 +0,0 @@
-#! /bin/sh
-#
-# Run 'autoreconf' to build 'configure', 'Makefile.in' and other configure
-# control files.
-#
-# The first time this is run on a GIT checkout the only files that exist are
-# configure.ac and Makefile.am; all of the autotools support scripts are
-# missing. They are instantiated with autoreconf --force --install.
-#
-# For regular ("tarball") distributions all the files should exist. We do not
-# want them to be updated *under any circumstances*. It should never be
-# necessary to run autogen.sh because ./configure --enable-maintainer-mode says
-# what to do if Makefile.am or configure.ac are changed.
-#
-# It is *probably* OK to update the files on a GIT checkout, because they have
-# come from the local tools, but leave that to the user who is assumed to know
-# whether it is ok or required.
-#
-# This script is intended to work without arguments, there are, however, hidden
-# arguments (a) for use while testing the script and (b) to fix up systems that
-# have been broken. If (b) is required the script prompts for the correct
-# options. For this reason the options are *NOT* documented in the help; this
-# is deliberate; UTSL.
-#
-clean=
-maintainer=
-while test $# -gt 0
-do
- case "$1" in
- --maintainer)
- maintainer=1;;
-
- --clean)
- clean=1;;
-
- *)
- exec >&2
- echo "$0: usage: ./autogen.sh"
- if test -d .git
- then
- echo " ./autogen.sh generates the configure script and"
- echo " Makefile.in, or refreshes them after changes to Makefile.am"
- echo " or configure.ac. You may prefer to just run autoreconf."
- elif test -z "$maintainer"
- then
- echo " DO NOT RUN THIS SCRIPT."
- echo " If you need to change Makefile.am or configure.ac then you"
- echo " also need to run ./configure --enable-maintainer-mode and"
- echo " use the appropriate autotools, *NOT* this script, to update"
- echo " everything, please check the documentation of autoreconf."
- echo " WARNING: libpng is intentionally generated with a known,"
- echo " fixed, set of autotools. It is known *NOT* to work with"
- echo " the collection of autotools distributed on highly reputable"
- echo " operating systems."
- echo " Remember: autotools is GNU software, you are expected to"
- echo " pay for support."
- else
- echo " You have run autogen.sh with --maintainer enabled and you"
- echo " are not using a GIT distribution, then you have given an"
- echo " unrecognized argument. This is not good. --maintainer"
- echo " switches off any assumptions that you might not know what"
- echo " you are doing."
- fi
- exit 1;;
- esac
-
- shift
-done
-#
-# First check for a set of the autotools files; if absent then this is assumed
-# to be a GIT version and the local autotools must be used. If present this
-# is a tarball distribution and the script should not be used. If partially
-# present bad things are happening.
-#
-# The autotools generated files:
-libpng_autotools_files="Makefile.in aclocal.m4 config.guess config.h.in
- config.sub configure depcomp install-sh ltmain.sh missing\
- test-driver"
-#
-# Files generated by versions of configue >2.68 or automake >1.13 (i.e. later
-# versions than those required by configure.ac):
-libpng_autotools_extra="compile config.h.in~"
-#
-# These are separate because 'maintainer-clean' does not remove them.
-libpng_libtool_files="scripts/libtool.m4 scripts/ltoptions.m4\
- scripts/ltsugar.m4 scripts/ltversion.m4 scripts/lt~obsolete.m4"
-
-libpng_autotools_dirs="autom4te.cache" # not required
-#
-# The configure generated files:
-libpng_configure_files="Makefile config.h config.log config.status\
- libpng-config libpng.pc libtool stamp-h1"
-
-libpng_configure_dirs=".deps"
-#
-# We must remove the configure generated files as well as the autotools
-# generated files if autotools are regenerated because otherwise if configure
-# has been run without "--enable-maintainer-mode" make can do a partial update
-# of Makefile. These functions do the two bits of cleaning.
-clean_autotools(){
- rm -rf $libpng_autotools_files $libpng_libtool_files $libpng_autotools_dirs
- rm -rf $libpng_autotools_extra
-}
-
-clean_configure(){
- rm -rf $libpng_configure_files $libpng_configure_dirs
-}
-#
-# Clean: remove everything (this is to help with testing)
-if test -n "$clean"
-then
- clean_configure
- if test -n "$maintainer"
- then
- clean_autotools
- fi
-
- exit 0
-fi
-#
-# Validate the distribution.
-libpng_autotools_file_found=
-libpng_autotools_file_missing=
-for file in $libpng_autotools_files
-do
- if test -f "$file"
- then
- libpng_autotools_file_found=1
- else
- libpng_autotools_file_missing=1
- fi
-done
-#
-# Presence of one of these does not *invalidate* missing, but absence
-# invalidates found.
-for file in $libpng_libtool_files
-do
- if test ! -f "$file"
- then
- libpng_autotools_file_missing=1
- fi
-done
-#
-# The cache directory doesn't matter - it will be regenerated and does not exist
-# anyway in a tarball.
-#
-# Either everything is missing or everything is there, the --maintainer option
-# just changes this so that the mode is set to generate all the files.
-mode=
-if test -z "$libpng_autotools_file_found" -o -n "$maintainer"
-then
- mode="autoreconf"
-else
- if test -n "$libpng_autotools_file_missing"
- then
- mode="broken"
- else
- mode="configure"
- fi
-fi
-#
-# So:
-case "$mode" in
- autoreconf)
- # Clean in case configure files exist
- clean_configure
- clean_autotools
- # Everything must be initialized, so use --force
- if autoreconf --warnings=all --force --install
- then
- missing=
- for file in $libpng_autotools_files
- do
- test -f "$file" || missing=1
- done
- # ignore the cache directory
- test -z "$missing" || {
- exec >&2
- echo "autoreconf was run, but did not produce all the expected"
- echo "files. It is likely that your autotools installation is"
- echo "not compatible with that expected by libpng."
- exit 1
- }
- else
- exec >&2
- echo "autoreconf failed: your version of autotools is incompatible"
- echo "with this libpng version. Please use a distributed archive"
- echo "(which includes the autotools generated files) and run configure"
- echo "instead."
- exit 1
- fi;;
-
- configure)
- if test -d .git
- then
- exec >&2
- echo "ERROR: running autoreconf on an initialized system"
- echo " This is not necessary; it is only necessary to remake the"
- echo " autotools generated files if Makefile.am or configure.ac"
- echo " change and make does the right thing with:"
- echo
- echo " ./configure --enable-maintainer-mode."
- echo
- echo " You can run autoreconf yourself if you don't like maintainer"
- echo " mode and you can also just run autoreconf -f -i to initialize"
- echo " everything in the first place; this script is only for"
- echo " compatibility with prior releases."
- exit 1
- else
- exec >&2
- echo "autogen.sh is intended only to generate 'configure' on systems"
- echo "that do not have it. You have a complete 'configure', if you"
- echo "need to change Makefile.am or configure.ac you also need to"
- echo "run configure with the --enable-maintainer-mode option."
- exit 1
- fi;;
-
- broken)
- exec >&2
- echo "Your system has a partial set of autotools generated files."
- echo "autogen.sh is unable to proceed. The full set of files is"
- echo "contained in the libpng 'tar' distribution archive and you do"
- echo "not need to run autogen.sh if you use it."
- exit 1;;
-esac
diff --git a/3rdparty/libpng/libpng-1.6.37/compile b/3rdparty/libpng/libpng-1.6.37/compile
deleted file mode 100755
index 99e5052..0000000
--- a/3rdparty/libpng/libpng-1.6.37/compile
+++ /dev/null
@@ -1,348 +0,0 @@
-#! /bin/sh
-# Wrapper for compilers which do not understand '-c -o'.
-
-scriptversion=2018-03-07.03; # UTC
-
-# Copyright (C) 1999-2018 Free Software Foundation, Inc.
-# Written by Tom Tromey <tromey@cygnus.com>.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <https://www.gnu.org/licenses/>.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# This file is maintained in Automake, please report
-# bugs to <bug-automake@gnu.org> or send patches to
-# <automake-patches@gnu.org>.
-
-nl='
-'
-
-# We need space, tab and new line, in precisely that order. Quoting is
-# there to prevent tools from complaining about whitespace usage.
-IFS=" "" $nl"
-
-file_conv=
-
-# func_file_conv build_file lazy
-# Convert a $build file to $host form and store it in $file
-# Currently only supports Windows hosts. If the determined conversion
-# type is listed in (the comma separated) LAZY, no conversion will
-# take place.
-func_file_conv ()
-{
- file=$1
- case $file in
- / | /[!/]*) # absolute file, and not a UNC file
- if test -z "$file_conv"; then
- # lazily determine how to convert abs files
- case `uname -s` in
- MINGW*)
- file_conv=mingw
- ;;
- CYGWIN*)
- file_conv=cygwin
- ;;
- *)
- file_conv=wine
- ;;
- esac
- fi
- case $file_conv/,$2, in
- *,$file_conv,*)
- ;;
- mingw/*)
- file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
- ;;
- cygwin/*)
- file=`cygpath -m "$file" || echo "$file"`
- ;;
- wine/*)
- file=`winepath -w "$file" || echo "$file"`
- ;;
- esac
- ;;
- esac
-}
-
-# func_cl_dashL linkdir
-# Make cl look for libraries in LINKDIR
-func_cl_dashL ()
-{
- func_file_conv "$1"
- if test -z "$lib_path"; then
- lib_path=$file
- else
- lib_path="$lib_path;$file"
- fi
- linker_opts="$linker_opts -LIBPATH:$file"
-}
-
-# func_cl_dashl library
-# Do a library search-path lookup for cl
-func_cl_dashl ()
-{
- lib=$1
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- for dir in $lib_path $LIB
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- IFS=$save_IFS
- if $shared && test -f "$dir/$lib.dll.lib"; then
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- lib=$dir/$lib.dll.lib
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- fi
- if test -f "$dir/$lib.lib"; then
- found=yes
- lib=$dir/$lib.lib
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- fi
- if test -f "$dir/lib$lib.a"; then
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- if test "$found" != yes; then
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-
-# func_cl_wrapper cl arg...
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-{
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- # configure might choose to run compile as 'compile cc -o foo foo.c'.
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- case $2 in
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- *)
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- esac
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- -I)
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- func_file_conv "$2" mingw
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- ;;
- -l*)
- func_cl_dashl "${1#-l}"
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- shift
- ;;
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- eat=1
- func_cl_dashL "$2"
- ;;
- -L*)
- func_cl_dashL "${1#-L}"
- ;;
- -static)
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- -Wl,*)
- arg=${1#-Wl,}
- save_ifs="$IFS"; IFS=','
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- -*)
- set x "$@" "$1"
- shift
- ;;
- *.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
- func_file_conv "$1"
- set x "$@" -Tp"$file"
- shift
- ;;
- *.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
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- shift
- ;;
- *)
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- shift
- ;;
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- fi
- shift
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- if test -n "$linker_opts"; then
- linker_opts="-link$linker_opts"
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- -h | --h*)
- cat <<\EOF
-Usage: compile [--help] [--version] PROGRAM [ARGS]
-
-Wrapper for compilers which do not understand '-c -o'.
-Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
-arguments, and rename the output as expected.
-
-If you are trying to build a whole package this is not the
-right script to run: please start by reading the file 'INSTALL'.
-
-Report bugs to <bug-automake@gnu.org>.
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- exit $?
- ;;
- -v | --v*)
- echo "compile $scriptversion"
- exit $?
- ;;
- cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \
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- cfile=$1
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- shift
- ;;
- esac
- fi
- shift
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-
-if test -z "$ofile" || test -z "$cfile"; then
- # If no '-o' option was seen then we might have been invoked from a
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- sleep 1
-done
-# FIXME: race condition here if user kills between mkdir and trap.
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-
-# Run the compile.
-"$@"
-ret=$?
-
-if test -f "$cofile"; then
- test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
-elif test -f "${cofile}bj"; then
- test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
-fi
-
-rmdir "$lockdir"
-exit $ret
-
-# Local Variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
-# time-stamp-end: "; # UTC"
-# End:
diff --git a/3rdparty/libpng/libpng-1.6.37/config.guess b/3rdparty/libpng/libpng-1.6.37/config.guess
deleted file mode 100755
index 256083a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/config.guess
+++ /dev/null
@@ -1,1476 +0,0 @@
-#! /bin/sh
-# Attempt to guess a canonical system name.
-# Copyright 1992-2018 Free Software Foundation, Inc.
-
-timestamp='2018-03-08'
-
-# This file is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, see <https://www.gnu.org/licenses/>.
-#
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that
-# program. This Exception is an additional permission under section 7
-# of the GNU General Public License, version 3 ("GPLv3").
-#
-# Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
-#
-# You can get the latest version of this script from:
-# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
-#
-# Please send patches to <config-patches@gnu.org>.
-
-
-me=`echo "$0" | sed -e 's,.*/,,'`
-
-usage="\
-Usage: $0 [OPTION]
-
-Output the configuration name of the system \`$me' is run on.
-
-Options:
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- -t, --time-stamp print date of last modification, then exit
- -v, --version print version number, then exit
-
-Report bugs and patches to <config-patches@gnu.org>."
-
-version="\
-GNU config.guess ($timestamp)
-
-Originally written by Per Bothner.
-Copyright 1992-2018 Free Software Foundation, Inc.
-
-This is free software; see the source for copying conditions. There is NO
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-
-help="
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- echo "$version" ; exit ;;
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- echo "$usage"; exit ;;
- -- ) # Stop option processing
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- - ) # Use stdin as input.
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- -* )
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-
-if test $# != 0; then
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- exit 1
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-
-trap 'exit 1' 1 2 15
-
-# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
-# compiler to aid in system detection is discouraged as it requires
-# temporary files to be created and, as you can see below, it is a
-# headache to deal with in a portable fashion.
-
-# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
-# use `HOST_CC' if defined, but it is deprecated.
-
-# Portable tmp directory creation inspired by the Autoconf team.
-
-set_cc_for_build='
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- { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
-dummy=$tmp/dummy ;
-tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
-case $CC_FOR_BUILD,$HOST_CC,$CC in
- ,,) echo "int x;" > "$dummy.c" ;
- for c in cc gcc c89 c99 ; do
- if ($c -c -o "$dummy.o" "$dummy.c") >/dev/null 2>&1 ; then
- CC_FOR_BUILD="$c"; break ;
- fi ;
- done ;
- if test x"$CC_FOR_BUILD" = x ; then
- CC_FOR_BUILD=no_compiler_found ;
- fi
- ;;
- ,,*) CC_FOR_BUILD=$CC ;;
- ,*,*) CC_FOR_BUILD=$HOST_CC ;;
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-
-# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
-# (ghazi@noc.rutgers.edu 1994-08-24)
-if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
- PATH=$PATH:/.attbin ; export PATH
-fi
-
-UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
-UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
-UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown
-UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
-
-case "$UNAME_SYSTEM" in
-Linux|GNU|GNU/*)
- # If the system lacks a compiler, then just pick glibc.
- # We could probably try harder.
- LIBC=gnu
-
- eval "$set_cc_for_build"
- cat <<-EOF > "$dummy.c"
- #include <features.h>
- #if defined(__UCLIBC__)
- LIBC=uclibc
- #elif defined(__dietlibc__)
- LIBC=dietlibc
- #else
- LIBC=gnu
- #endif
- EOF
- eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`"
-
- # If ldd exists, use it to detect musl libc.
- if command -v ldd >/dev/null && \
- ldd --version 2>&1 | grep -q ^musl
- then
- LIBC=musl
- fi
- ;;
-esac
-
-# Note: order is significant - the case branches are not exclusive.
-
-case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
- *:NetBSD:*:*)
- # NetBSD (nbsd) targets should (where applicable) match one or
- # more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
- # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently
- # switched to ELF, *-*-netbsd* would select the old
- # object file format. This provides both forward
- # compatibility and a consistent mechanism for selecting the
- # object file format.
- #
- # Note: NetBSD doesn't particularly care about the vendor
- # portion of the name. We always set it to "unknown".
- sysctl="sysctl -n hw.machine_arch"
- UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \
- "/sbin/$sysctl" 2>/dev/null || \
- "/usr/sbin/$sysctl" 2>/dev/null || \
- echo unknown)`
- case "$UNAME_MACHINE_ARCH" in
- armeb) machine=armeb-unknown ;;
- arm*) machine=arm-unknown ;;
- sh3el) machine=shl-unknown ;;
- sh3eb) machine=sh-unknown ;;
- sh5el) machine=sh5le-unknown ;;
- earmv*)
- arch=`echo "$UNAME_MACHINE_ARCH" | sed -e 's,^e\(armv[0-9]\).*$,\1,'`
- endian=`echo "$UNAME_MACHINE_ARCH" | sed -ne 's,^.*\(eb\)$,\1,p'`
- machine="${arch}${endian}"-unknown
- ;;
- *) machine="$UNAME_MACHINE_ARCH"-unknown ;;
- esac
- # The Operating System including object format, if it has switched
- # to ELF recently (or will in the future) and ABI.
- case "$UNAME_MACHINE_ARCH" in
- earm*)
- os=netbsdelf
- ;;
- arm*|i386|m68k|ns32k|sh3*|sparc|vax)
- eval "$set_cc_for_build"
- if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
- | grep -q __ELF__
- then
- # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
- # Return netbsd for either. FIX?
- os=netbsd
- else
- os=netbsdelf
- fi
- ;;
- *)
- os=netbsd
- ;;
- esac
- # Determine ABI tags.
- case "$UNAME_MACHINE_ARCH" in
- earm*)
- expr='s/^earmv[0-9]/-eabi/;s/eb$//'
- abi=`echo "$UNAME_MACHINE_ARCH" | sed -e "$expr"`
- ;;
- esac
- # The OS release
- # Debian GNU/NetBSD machines have a different userland, and
- # thus, need a distinct triplet. However, they do not need
- # kernel version information, so it can be replaced with a
- # suitable tag, in the style of linux-gnu.
- case "$UNAME_VERSION" in
- Debian*)
- release='-gnu'
- ;;
- *)
- release=`echo "$UNAME_RELEASE" | sed -e 's/[-_].*//' | cut -d. -f1,2`
- ;;
- esac
- # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
- # contains redundant information, the shorter form:
- # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
- echo "$machine-${os}${release}${abi}"
- exit ;;
- *:Bitrig:*:*)
- UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
- echo "$UNAME_MACHINE_ARCH"-unknown-bitrig"$UNAME_RELEASE"
- exit ;;
- *:OpenBSD:*:*)
- UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
- echo "$UNAME_MACHINE_ARCH"-unknown-openbsd"$UNAME_RELEASE"
- exit ;;
- *:LibertyBSD:*:*)
- UNAME_MACHINE_ARCH=`arch | sed 's/^.*BSD\.//'`
- echo "$UNAME_MACHINE_ARCH"-unknown-libertybsd"$UNAME_RELEASE"
- exit ;;
- *:MidnightBSD:*:*)
- echo "$UNAME_MACHINE"-unknown-midnightbsd"$UNAME_RELEASE"
- exit ;;
- *:ekkoBSD:*:*)
- echo "$UNAME_MACHINE"-unknown-ekkobsd"$UNAME_RELEASE"
- exit ;;
- *:SolidBSD:*:*)
- echo "$UNAME_MACHINE"-unknown-solidbsd"$UNAME_RELEASE"
- exit ;;
- macppc:MirBSD:*:*)
- echo powerpc-unknown-mirbsd"$UNAME_RELEASE"
- exit ;;
- *:MirBSD:*:*)
- echo "$UNAME_MACHINE"-unknown-mirbsd"$UNAME_RELEASE"
- exit ;;
- *:Sortix:*:*)
- echo "$UNAME_MACHINE"-unknown-sortix
- exit ;;
- *:Redox:*:*)
- echo "$UNAME_MACHINE"-unknown-redox
- exit ;;
- mips:OSF1:*.*)
- echo mips-dec-osf1
- exit ;;
- alpha:OSF1:*:*)
- case $UNAME_RELEASE in
- *4.0)
- UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
- ;;
- *5.*)
- UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
- ;;
- esac
- # According to Compaq, /usr/sbin/psrinfo has been available on
- # OSF/1 and Tru64 systems produced since 1995. I hope that
- # covers most systems running today. This code pipes the CPU
- # types through head -n 1, so we only detect the type of CPU 0.
- ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1`
- case "$ALPHA_CPU_TYPE" in
- "EV4 (21064)")
- UNAME_MACHINE=alpha ;;
- "EV4.5 (21064)")
- UNAME_MACHINE=alpha ;;
- "LCA4 (21066/21068)")
- UNAME_MACHINE=alpha ;;
- "EV5 (21164)")
- UNAME_MACHINE=alphaev5 ;;
- "EV5.6 (21164A)")
- UNAME_MACHINE=alphaev56 ;;
- "EV5.6 (21164PC)")
- UNAME_MACHINE=alphapca56 ;;
- "EV5.7 (21164PC)")
- UNAME_MACHINE=alphapca57 ;;
- "EV6 (21264)")
- UNAME_MACHINE=alphaev6 ;;
- "EV6.7 (21264A)")
- UNAME_MACHINE=alphaev67 ;;
- "EV6.8CB (21264C)")
- UNAME_MACHINE=alphaev68 ;;
- "EV6.8AL (21264B)")
- UNAME_MACHINE=alphaev68 ;;
- "EV6.8CX (21264D)")
- UNAME_MACHINE=alphaev68 ;;
- "EV6.9A (21264/EV69A)")
- UNAME_MACHINE=alphaev69 ;;
- "EV7 (21364)")
- UNAME_MACHINE=alphaev7 ;;
- "EV7.9 (21364A)")
- UNAME_MACHINE=alphaev79 ;;
- esac
- # A Pn.n version is a patched version.
- # A Vn.n version is a released version.
- # A Tn.n version is a released field test version.
- # A Xn.n version is an unreleased experimental baselevel.
- # 1.2 uses "1.2" for uname -r.
- echo "$UNAME_MACHINE"-dec-osf"`echo "$UNAME_RELEASE" | sed -e 's/^[PVTX]//' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`"
- # Reset EXIT trap before exiting to avoid spurious non-zero exit code.
- exitcode=$?
- trap '' 0
- exit $exitcode ;;
- Amiga*:UNIX_System_V:4.0:*)
- echo m68k-unknown-sysv4
- exit ;;
- *:[Aa]miga[Oo][Ss]:*:*)
- echo "$UNAME_MACHINE"-unknown-amigaos
- exit ;;
- *:[Mm]orph[Oo][Ss]:*:*)
- echo "$UNAME_MACHINE"-unknown-morphos
- exit ;;
- *:OS/390:*:*)
- echo i370-ibm-openedition
- exit ;;
- *:z/VM:*:*)
- echo s390-ibm-zvmoe
- exit ;;
- *:OS400:*:*)
- echo powerpc-ibm-os400
- exit ;;
- arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
- echo arm-acorn-riscix"$UNAME_RELEASE"
- exit ;;
- arm*:riscos:*:*|arm*:RISCOS:*:*)
- echo arm-unknown-riscos
- exit ;;
- SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
- echo hppa1.1-hitachi-hiuxmpp
- exit ;;
- Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
- # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
- if test "`(/bin/universe) 2>/dev/null`" = att ; then
- echo pyramid-pyramid-sysv3
- else
- echo pyramid-pyramid-bsd
- fi
- exit ;;
- NILE*:*:*:dcosx)
- echo pyramid-pyramid-svr4
- exit ;;
- DRS?6000:unix:4.0:6*)
- echo sparc-icl-nx6
- exit ;;
- DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
- case `/usr/bin/uname -p` in
- sparc) echo sparc-icl-nx7; exit ;;
- esac ;;
- s390x:SunOS:*:*)
- echo "$UNAME_MACHINE"-ibm-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`"
- exit ;;
- sun4H:SunOS:5.*:*)
- echo sparc-hal-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
- exit ;;
- sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
- echo sparc-sun-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`"
- exit ;;
- i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
- echo i386-pc-auroraux"$UNAME_RELEASE"
- exit ;;
- i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
- eval "$set_cc_for_build"
- SUN_ARCH=i386
- # If there is a compiler, see if it is configured for 64-bit objects.
- # Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
- # This test works for both compilers.
- if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
- if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
- (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
- grep IS_64BIT_ARCH >/dev/null
- then
- SUN_ARCH=x86_64
- fi
- fi
- echo "$SUN_ARCH"-pc-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
- exit ;;
- sun4*:SunOS:6*:*)
- # According to config.sub, this is the proper way to canonicalize
- # SunOS6. Hard to guess exactly what SunOS6 will be like, but
- # it's likely to be more like Solaris than SunOS4.
- echo sparc-sun-solaris3"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
- exit ;;
- sun4*:SunOS:*:*)
- case "`/usr/bin/arch -k`" in
- Series*|S4*)
- UNAME_RELEASE=`uname -v`
- ;;
- esac
- # Japanese Language versions have a version number like `4.1.3-JL'.
- echo sparc-sun-sunos"`echo "$UNAME_RELEASE"|sed -e 's/-/_/'`"
- exit ;;
- sun3*:SunOS:*:*)
- echo m68k-sun-sunos"$UNAME_RELEASE"
- exit ;;
- sun*:*:4.2BSD:*)
- UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
- test "x$UNAME_RELEASE" = x && UNAME_RELEASE=3
- case "`/bin/arch`" in
- sun3)
- echo m68k-sun-sunos"$UNAME_RELEASE"
- ;;
- sun4)
- echo sparc-sun-sunos"$UNAME_RELEASE"
- ;;
- esac
- exit ;;
- aushp:SunOS:*:*)
- echo sparc-auspex-sunos"$UNAME_RELEASE"
- exit ;;
- # The situation for MiNT is a little confusing. The machine name
- # can be virtually everything (everything which is not
- # "atarist" or "atariste" at least should have a processor
- # > m68000). The system name ranges from "MiNT" over "FreeMiNT"
- # to the lowercase version "mint" (or "freemint"). Finally
- # the system name "TOS" denotes a system which is actually not
- # MiNT. But MiNT is downward compatible to TOS, so this should
- # be no problem.
- atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
- echo m68k-atari-mint"$UNAME_RELEASE"
- exit ;;
- atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
- echo m68k-atari-mint"$UNAME_RELEASE"
- exit ;;
- *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
- echo m68k-atari-mint"$UNAME_RELEASE"
- exit ;;
- milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
- echo m68k-milan-mint"$UNAME_RELEASE"
- exit ;;
- hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
- echo m68k-hades-mint"$UNAME_RELEASE"
- exit ;;
- *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
- echo m68k-unknown-mint"$UNAME_RELEASE"
- exit ;;
- m68k:machten:*:*)
- echo m68k-apple-machten"$UNAME_RELEASE"
- exit ;;
- powerpc:machten:*:*)
- echo powerpc-apple-machten"$UNAME_RELEASE"
- exit ;;
- RISC*:Mach:*:*)
- echo mips-dec-mach_bsd4.3
- exit ;;
- RISC*:ULTRIX:*:*)
- echo mips-dec-ultrix"$UNAME_RELEASE"
- exit ;;
- VAX*:ULTRIX*:*:*)
- echo vax-dec-ultrix"$UNAME_RELEASE"
- exit ;;
- 2020:CLIX:*:* | 2430:CLIX:*:*)
- echo clipper-intergraph-clix"$UNAME_RELEASE"
- exit ;;
- mips:*:*:UMIPS | mips:*:*:RISCos)
- eval "$set_cc_for_build"
- sed 's/^ //' << EOF > "$dummy.c"
-#ifdef __cplusplus
-#include <stdio.h> /* for printf() prototype */
- int main (int argc, char *argv[]) {
-#else
- int main (argc, argv) int argc; char *argv[]; {
-#endif
- #if defined (host_mips) && defined (MIPSEB)
- #if defined (SYSTYPE_SYSV)
- printf ("mips-mips-riscos%ssysv\\n", argv[1]); exit (0);
- #endif
- #if defined (SYSTYPE_SVR4)
- printf ("mips-mips-riscos%ssvr4\\n", argv[1]); exit (0);
- #endif
- #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
- printf ("mips-mips-riscos%sbsd\\n", argv[1]); exit (0);
- #endif
- #endif
- exit (-1);
- }
-EOF
- $CC_FOR_BUILD -o "$dummy" "$dummy.c" &&
- dummyarg=`echo "$UNAME_RELEASE" | sed -n 's/\([0-9]*\).*/\1/p'` &&
- SYSTEM_NAME=`"$dummy" "$dummyarg"` &&
- { echo "$SYSTEM_NAME"; exit; }
- echo mips-mips-riscos"$UNAME_RELEASE"
- exit ;;
- Motorola:PowerMAX_OS:*:*)
- echo powerpc-motorola-powermax
- exit ;;
- Motorola:*:4.3:PL8-*)
- echo powerpc-harris-powermax
- exit ;;
- Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
- echo powerpc-harris-powermax
- exit ;;
- Night_Hawk:Power_UNIX:*:*)
- echo powerpc-harris-powerunix
- exit ;;
- m88k:CX/UX:7*:*)
- echo m88k-harris-cxux7
- exit ;;
- m88k:*:4*:R4*)
- echo m88k-motorola-sysv4
- exit ;;
- m88k:*:3*:R3*)
- echo m88k-motorola-sysv3
- exit ;;
- AViiON:dgux:*:*)
- # DG/UX returns AViiON for all architectures
- UNAME_PROCESSOR=`/usr/bin/uname -p`
- if [ "$UNAME_PROCESSOR" = mc88100 ] || [ "$UNAME_PROCESSOR" = mc88110 ]
- then
- if [ "$TARGET_BINARY_INTERFACE"x = m88kdguxelfx ] || \
- [ "$TARGET_BINARY_INTERFACE"x = x ]
- then
- echo m88k-dg-dgux"$UNAME_RELEASE"
- else
- echo m88k-dg-dguxbcs"$UNAME_RELEASE"
- fi
- else
- echo i586-dg-dgux"$UNAME_RELEASE"
- fi
- exit ;;
- M88*:DolphinOS:*:*) # DolphinOS (SVR3)
- echo m88k-dolphin-sysv3
- exit ;;
- M88*:*:R3*:*)
- # Delta 88k system running SVR3
- echo m88k-motorola-sysv3
- exit ;;
- XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
- echo m88k-tektronix-sysv3
- exit ;;
- Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
- echo m68k-tektronix-bsd
- exit ;;
- *:IRIX*:*:*)
- echo mips-sgi-irix"`echo "$UNAME_RELEASE"|sed -e 's/-/_/g'`"
- exit ;;
- ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
- echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id
- exit ;; # Note that: echo "'`uname -s`'" gives 'AIX '
- i*86:AIX:*:*)
- echo i386-ibm-aix
- exit ;;
- ia64:AIX:*:*)
- if [ -x /usr/bin/oslevel ] ; then
- IBM_REV=`/usr/bin/oslevel`
- else
- IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
- fi
- echo "$UNAME_MACHINE"-ibm-aix"$IBM_REV"
- exit ;;
- *:AIX:2:3)
- if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
- eval "$set_cc_for_build"
- sed 's/^ //' << EOF > "$dummy.c"
- #include <sys/systemcfg.h>
-
- main()
- {
- if (!__power_pc())
- exit(1);
- puts("powerpc-ibm-aix3.2.5");
- exit(0);
- }
-EOF
- if $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"`
- then
- echo "$SYSTEM_NAME"
- else
- echo rs6000-ibm-aix3.2.5
- fi
- elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
- echo rs6000-ibm-aix3.2.4
- else
- echo rs6000-ibm-aix3.2
- fi
- exit ;;
- *:AIX:*:[4567])
- IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
- if /usr/sbin/lsattr -El "$IBM_CPU_ID" | grep ' POWER' >/dev/null 2>&1; then
- IBM_ARCH=rs6000
- else
- IBM_ARCH=powerpc
- fi
- if [ -x /usr/bin/lslpp ] ; then
- IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc |
- awk -F: '{ print $3 }' | sed s/[0-9]*$/0/`
- else
- IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
- fi
- echo "$IBM_ARCH"-ibm-aix"$IBM_REV"
- exit ;;
- *:AIX:*:*)
- echo rs6000-ibm-aix
- exit ;;
- ibmrt:4.4BSD:*|romp-ibm:4.4BSD:*)
- echo romp-ibm-bsd4.4
- exit ;;
- ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and
- echo romp-ibm-bsd"$UNAME_RELEASE" # 4.3 with uname added to
- exit ;; # report: romp-ibm BSD 4.3
- *:BOSX:*:*)
- echo rs6000-bull-bosx
- exit ;;
- DPX/2?00:B.O.S.:*:*)
- echo m68k-bull-sysv3
- exit ;;
- 9000/[34]??:4.3bsd:1.*:*)
- echo m68k-hp-bsd
- exit ;;
- hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
- echo m68k-hp-bsd4.4
- exit ;;
- 9000/[34678]??:HP-UX:*:*)
- HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'`
- case "$UNAME_MACHINE" in
- 9000/31?) HP_ARCH=m68000 ;;
- 9000/[34]??) HP_ARCH=m68k ;;
- 9000/[678][0-9][0-9])
- if [ -x /usr/bin/getconf ]; then
- sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
- sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
- case "$sc_cpu_version" in
- 523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0
- 528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1
- 532) # CPU_PA_RISC2_0
- case "$sc_kernel_bits" in
- 32) HP_ARCH=hppa2.0n ;;
- 64) HP_ARCH=hppa2.0w ;;
- '') HP_ARCH=hppa2.0 ;; # HP-UX 10.20
- esac ;;
- esac
- fi
- if [ "$HP_ARCH" = "" ]; then
- eval "$set_cc_for_build"
- sed 's/^ //' << EOF > "$dummy.c"
-
- #define _HPUX_SOURCE
- #include <stdlib.h>
- #include <unistd.h>
-
- int main ()
- {
- #if defined(_SC_KERNEL_BITS)
- long bits = sysconf(_SC_KERNEL_BITS);
- #endif
- long cpu = sysconf (_SC_CPU_VERSION);
-
- switch (cpu)
- {
- case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
- case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
- case CPU_PA_RISC2_0:
- #if defined(_SC_KERNEL_BITS)
- switch (bits)
- {
- case 64: puts ("hppa2.0w"); break;
- case 32: puts ("hppa2.0n"); break;
- default: puts ("hppa2.0"); break;
- } break;
- #else /* !defined(_SC_KERNEL_BITS) */
- puts ("hppa2.0"); break;
- #endif
- default: puts ("hppa1.0"); break;
- }
- exit (0);
- }
-EOF
- (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null) && HP_ARCH=`"$dummy"`
- test -z "$HP_ARCH" && HP_ARCH=hppa
- fi ;;
- esac
- if [ "$HP_ARCH" = hppa2.0w ]
- then
- eval "$set_cc_for_build"
-
- # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
- # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler
- # generating 64-bit code. GNU and HP use different nomenclature:
- #
- # $ CC_FOR_BUILD=cc ./config.guess
- # => hppa2.0w-hp-hpux11.23
- # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
- # => hppa64-hp-hpux11.23
-
- if echo __LP64__ | (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) |
- grep -q __LP64__
- then
- HP_ARCH=hppa2.0w
- else
- HP_ARCH=hppa64
- fi
- fi
- echo "$HP_ARCH"-hp-hpux"$HPUX_REV"
- exit ;;
- ia64:HP-UX:*:*)
- HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'`
- echo ia64-hp-hpux"$HPUX_REV"
- exit ;;
- 3050*:HI-UX:*:*)
- eval "$set_cc_for_build"
- sed 's/^ //' << EOF > "$dummy.c"
- #include <unistd.h>
- int
- main ()
- {
- long cpu = sysconf (_SC_CPU_VERSION);
- /* The order matters, because CPU_IS_HP_MC68K erroneously returns
- true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct
- results, however. */
- if (CPU_IS_PA_RISC (cpu))
- {
- switch (cpu)
- {
- case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
- case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
- case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
- default: puts ("hppa-hitachi-hiuxwe2"); break;
- }
- }
- else if (CPU_IS_HP_MC68K (cpu))
- puts ("m68k-hitachi-hiuxwe2");
- else puts ("unknown-hitachi-hiuxwe2");
- exit (0);
- }
-EOF
- $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` &&
- { echo "$SYSTEM_NAME"; exit; }
- echo unknown-hitachi-hiuxwe2
- exit ;;
- 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:*)
- echo hppa1.1-hp-bsd
- exit ;;
- 9000/8??:4.3bsd:*:*)
- echo hppa1.0-hp-bsd
- exit ;;
- *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
- echo hppa1.0-hp-mpeix
- exit ;;
- hp7??:OSF1:*:* | hp8?[79]:OSF1:*:*)
- echo hppa1.1-hp-osf
- exit ;;
- hp8??:OSF1:*:*)
- echo hppa1.0-hp-osf
- exit ;;
- i*86:OSF1:*:*)
- if [ -x /usr/sbin/sysversion ] ; then
- echo "$UNAME_MACHINE"-unknown-osf1mk
- else
- echo "$UNAME_MACHINE"-unknown-osf1
- fi
- exit ;;
- parisc*:Lites*:*:*)
- echo hppa1.1-hp-lites
- exit ;;
- C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
- echo c1-convex-bsd
- exit ;;
- C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
- if getsysinfo -f scalar_acc
- then echo c32-convex-bsd
- else echo c2-convex-bsd
- fi
- exit ;;
- C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
- echo c34-convex-bsd
- exit ;;
- C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
- echo c38-convex-bsd
- exit ;;
- C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
- echo c4-convex-bsd
- exit ;;
- CRAY*Y-MP:*:*:*)
- echo ymp-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*[A-Z]90:*:*:*)
- echo "$UNAME_MACHINE"-cray-unicos"$UNAME_RELEASE" \
- | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
- -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
- -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*TS:*:*:*)
- echo t90-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*T3E:*:*:*)
- echo alphaev5-cray-unicosmk"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*SV1:*:*:*)
- echo sv1-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- *:UNICOS/mp:*:*)
- echo craynv-cray-unicosmp"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
- FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`
- FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
- FUJITSU_REL=`echo "$UNAME_RELEASE" | sed -e 's/ /_/'`
- echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
- exit ;;
- 5000:UNIX_System_V:4.*:*)
- FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
- FUJITSU_REL=`echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'`
- echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
- exit ;;
- i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
- echo "$UNAME_MACHINE"-pc-bsdi"$UNAME_RELEASE"
- exit ;;
- sparc*:BSD/OS:*:*)
- echo sparc-unknown-bsdi"$UNAME_RELEASE"
- exit ;;
- *:BSD/OS:*:*)
- echo "$UNAME_MACHINE"-unknown-bsdi"$UNAME_RELEASE"
- exit ;;
- *:FreeBSD:*:*)
- UNAME_PROCESSOR=`/usr/bin/uname -p`
- case "$UNAME_PROCESSOR" in
- amd64)
- UNAME_PROCESSOR=x86_64 ;;
- i386)
- UNAME_PROCESSOR=i586 ;;
- esac
- echo "$UNAME_PROCESSOR"-unknown-freebsd"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`"
- exit ;;
- i*:CYGWIN*:*)
- echo "$UNAME_MACHINE"-pc-cygwin
- exit ;;
- *:MINGW64*:*)
- echo "$UNAME_MACHINE"-pc-mingw64
- exit ;;
- *:MINGW*:*)
- echo "$UNAME_MACHINE"-pc-mingw32
- exit ;;
- *:MSYS*:*)
- echo "$UNAME_MACHINE"-pc-msys
- exit ;;
- i*:PW*:*)
- echo "$UNAME_MACHINE"-pc-pw32
- exit ;;
- *:Interix*:*)
- case "$UNAME_MACHINE" in
- x86)
- echo i586-pc-interix"$UNAME_RELEASE"
- exit ;;
- authenticamd | genuineintel | EM64T)
- echo x86_64-unknown-interix"$UNAME_RELEASE"
- exit ;;
- IA64)
- echo ia64-unknown-interix"$UNAME_RELEASE"
- exit ;;
- esac ;;
- i*:UWIN*:*)
- echo "$UNAME_MACHINE"-pc-uwin
- exit ;;
- amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
- echo x86_64-unknown-cygwin
- exit ;;
- prep*:SunOS:5.*:*)
- echo powerpcle-unknown-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
- exit ;;
- *:GNU:*:*)
- # the GNU system
- echo "`echo "$UNAME_MACHINE"|sed -e 's,[-/].*$,,'`-unknown-$LIBC`echo "$UNAME_RELEASE"|sed -e 's,/.*$,,'`"
- exit ;;
- *:GNU/*:*:*)
- # other systems with GNU libc and userland
- echo "$UNAME_MACHINE-unknown-`echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`-$LIBC"
- exit ;;
- i*86:Minix:*:*)
- echo "$UNAME_MACHINE"-pc-minix
- exit ;;
- aarch64:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- aarch64_be:Linux:*:*)
- UNAME_MACHINE=aarch64_be
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- alpha:Linux:*:*)
- case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
- EV5) UNAME_MACHINE=alphaev5 ;;
- EV56) UNAME_MACHINE=alphaev56 ;;
- PCA56) UNAME_MACHINE=alphapca56 ;;
- PCA57) UNAME_MACHINE=alphapca56 ;;
- EV6) UNAME_MACHINE=alphaev6 ;;
- EV67) UNAME_MACHINE=alphaev67 ;;
- EV68*) UNAME_MACHINE=alphaev68 ;;
- esac
- objdump --private-headers /bin/sh | grep -q ld.so.1
- if test "$?" = 0 ; then LIBC=gnulibc1 ; fi
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- arc:Linux:*:* | arceb:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- arm*:Linux:*:*)
- eval "$set_cc_for_build"
- if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
- | grep -q __ARM_EABI__
- then
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- else
- if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
- | grep -q __ARM_PCS_VFP
- then
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabi
- else
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabihf
- fi
- fi
- exit ;;
- avr32*:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- cris:Linux:*:*)
- echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
- exit ;;
- crisv32:Linux:*:*)
- echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
- exit ;;
- e2k:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- frv:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- hexagon:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- i*86:Linux:*:*)
- echo "$UNAME_MACHINE"-pc-linux-"$LIBC"
- exit ;;
- ia64:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- k1om:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- m32r*:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- m68*:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- mips:Linux:*:* | mips64:Linux:*:*)
- eval "$set_cc_for_build"
- sed 's/^ //' << EOF > "$dummy.c"
- #undef CPU
- #undef ${UNAME_MACHINE}
- #undef ${UNAME_MACHINE}el
- #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
- CPU=${UNAME_MACHINE}el
- #else
- #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
- CPU=${UNAME_MACHINE}
- #else
- CPU=
- #endif
- #endif
-EOF
- eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`"
- test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; }
- ;;
- mips64el:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- openrisc*:Linux:*:*)
- echo or1k-unknown-linux-"$LIBC"
- exit ;;
- or32:Linux:*:* | or1k*:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- padre:Linux:*:*)
- echo sparc-unknown-linux-"$LIBC"
- exit ;;
- parisc64:Linux:*:* | hppa64:Linux:*:*)
- echo hppa64-unknown-linux-"$LIBC"
- exit ;;
- parisc:Linux:*:* | hppa:Linux:*:*)
- # Look for CPU level
- case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
- PA7*) echo hppa1.1-unknown-linux-"$LIBC" ;;
- PA8*) echo hppa2.0-unknown-linux-"$LIBC" ;;
- *) echo hppa-unknown-linux-"$LIBC" ;;
- esac
- exit ;;
- ppc64:Linux:*:*)
- echo powerpc64-unknown-linux-"$LIBC"
- exit ;;
- ppc:Linux:*:*)
- echo powerpc-unknown-linux-"$LIBC"
- exit ;;
- ppc64le:Linux:*:*)
- echo powerpc64le-unknown-linux-"$LIBC"
- exit ;;
- ppcle:Linux:*:*)
- echo powerpcle-unknown-linux-"$LIBC"
- exit ;;
- riscv32:Linux:*:* | riscv64:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- s390:Linux:*:* | s390x:Linux:*:*)
- echo "$UNAME_MACHINE"-ibm-linux-"$LIBC"
- exit ;;
- sh64*:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- sh*:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- sparc:Linux:*:* | sparc64:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- tile*:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- vax:Linux:*:*)
- echo "$UNAME_MACHINE"-dec-linux-"$LIBC"
- exit ;;
- x86_64:Linux:*:*)
- echo "$UNAME_MACHINE"-pc-linux-"$LIBC"
- exit ;;
- xtensa*:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- i*86:DYNIX/ptx:4*:*)
- # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
- # earlier versions are messed up and put the nodename in both
- # sysname and nodename.
- echo i386-sequent-sysv4
- exit ;;
- i*86:UNIX_SV:4.2MP:2.*)
- # Unixware is an offshoot of SVR4, but it has its own version
- # number series starting with 2...
- # I am not positive that other SVR4 systems won't match this,
- # I just have to hope. -- rms.
- # Use sysv4.2uw... so that sysv4* matches it.
- echo "$UNAME_MACHINE"-pc-sysv4.2uw"$UNAME_VERSION"
- exit ;;
- i*86:OS/2:*:*)
- # If we were able to find `uname', then EMX Unix compatibility
- # is probably installed.
- echo "$UNAME_MACHINE"-pc-os2-emx
- exit ;;
- i*86:XTS-300:*:STOP)
- echo "$UNAME_MACHINE"-unknown-stop
- exit ;;
- i*86:atheos:*:*)
- echo "$UNAME_MACHINE"-unknown-atheos
- exit ;;
- i*86:syllable:*:*)
- echo "$UNAME_MACHINE"-pc-syllable
- exit ;;
- i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
- echo i386-unknown-lynxos"$UNAME_RELEASE"
- exit ;;
- i*86:*DOS:*:*)
- echo "$UNAME_MACHINE"-pc-msdosdjgpp
- exit ;;
- i*86:*:4.*:*)
- UNAME_REL=`echo "$UNAME_RELEASE" | sed 's/\/MP$//'`
- if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
- echo "$UNAME_MACHINE"-univel-sysv"$UNAME_REL"
- else
- echo "$UNAME_MACHINE"-pc-sysv"$UNAME_REL"
- fi
- exit ;;
- i*86:*:5:[678]*)
- # UnixWare 7.x, OpenUNIX and OpenServer 6.
- case `/bin/uname -X | grep "^Machine"` in
- *486*) UNAME_MACHINE=i486 ;;
- *Pentium) UNAME_MACHINE=i586 ;;
- *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
- esac
- echo "$UNAME_MACHINE-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}{$UNAME_VERSION}"
- exit ;;
- i*86:*:3.2:*)
- if test -f /usr/options/cb.name; then
- UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
- echo "$UNAME_MACHINE"-pc-isc"$UNAME_REL"
- elif /bin/uname -X 2>/dev/null >/dev/null ; then
- UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
- (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
- (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
- && UNAME_MACHINE=i586
- (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
- && UNAME_MACHINE=i686
- (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
- && UNAME_MACHINE=i686
- echo "$UNAME_MACHINE"-pc-sco"$UNAME_REL"
- else
- echo "$UNAME_MACHINE"-pc-sysv32
- fi
- exit ;;
- pc:*:*:*)
- # Left here for compatibility:
- # uname -m prints for DJGPP always 'pc', but it prints nothing about
- # the processor, so we play safe by assuming i586.
- # Note: whatever this is, it MUST be the same as what config.sub
- # prints for the "djgpp" host, or else GDB configure will decide that
- # this is a cross-build.
- echo i586-pc-msdosdjgpp
- exit ;;
- Intel:Mach:3*:*)
- echo i386-pc-mach3
- exit ;;
- paragon:*:*:*)
- echo i860-intel-osf1
- exit ;;
- i860:*:4.*:*) # i860-SVR4
- if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
- echo i860-stardent-sysv"$UNAME_RELEASE" # Stardent Vistra i860-SVR4
- else # Add other i860-SVR4 vendors below as they are discovered.
- echo i860-unknown-sysv"$UNAME_RELEASE" # Unknown i860-SVR4
- fi
- exit ;;
- mini*:CTIX:SYS*5:*)
- # "miniframe"
- echo m68010-convergent-sysv
- exit ;;
- mc68k:UNIX:SYSTEM5:3.51m)
- echo m68k-convergent-sysv
- exit ;;
- M680?0:D-NIX:5.3:*)
- echo m68k-diab-dnix
- exit ;;
- M68*:*:R3V[5678]*:*)
- test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
- 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
- OS_REL=''
- test -r /etc/.relid \
- && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
- /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
- && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
- /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
- && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;;
- 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
- /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
- && { echo i486-ncr-sysv4; exit; } ;;
- NCR*:*:4.2:* | MPRAS*:*:4.2:*)
- OS_REL='.3'
- test -r /etc/.relid \
- && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
- /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
- && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
- /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
- && { echo i586-ncr-sysv4.3"$OS_REL"; exit; }
- /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
- && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;;
- m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
- echo m68k-unknown-lynxos"$UNAME_RELEASE"
- exit ;;
- mc68030:UNIX_System_V:4.*:*)
- echo m68k-atari-sysv4
- exit ;;
- TSUNAMI:LynxOS:2.*:*)
- echo sparc-unknown-lynxos"$UNAME_RELEASE"
- exit ;;
- rs6000:LynxOS:2.*:*)
- echo rs6000-unknown-lynxos"$UNAME_RELEASE"
- exit ;;
- PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
- echo powerpc-unknown-lynxos"$UNAME_RELEASE"
- exit ;;
- SM[BE]S:UNIX_SV:*:*)
- echo mips-dde-sysv"$UNAME_RELEASE"
- exit ;;
- RM*:ReliantUNIX-*:*:*)
- echo mips-sni-sysv4
- exit ;;
- RM*:SINIX-*:*:*)
- echo mips-sni-sysv4
- exit ;;
- *:SINIX-*:*:*)
- if uname -p 2>/dev/null >/dev/null ; then
- UNAME_MACHINE=`(uname -p) 2>/dev/null`
- echo "$UNAME_MACHINE"-sni-sysv4
- else
- echo ns32k-sni-sysv
- fi
- exit ;;
- PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
- # says <Richard.M.Bartel@ccMail.Census.GOV>
- echo i586-unisys-sysv4
- exit ;;
- *:UNIX_System_V:4*:FTX*)
- # From Gerald Hewes <hewes@openmarket.com>.
- # How about differentiating between stratus architectures? -djm
- echo hppa1.1-stratus-sysv4
- exit ;;
- *:*:*:FTX*)
- # From seanf@swdc.stratus.com.
- echo i860-stratus-sysv4
- exit ;;
- i*86:VOS:*:*)
- # From Paul.Green@stratus.com.
- echo "$UNAME_MACHINE"-stratus-vos
- exit ;;
- *:VOS:*:*)
- # From Paul.Green@stratus.com.
- echo hppa1.1-stratus-vos
- exit ;;
- mc68*:A/UX:*:*)
- echo m68k-apple-aux"$UNAME_RELEASE"
- exit ;;
- news*:NEWS-OS:6*:*)
- echo mips-sony-newsos6
- exit ;;
- R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
- if [ -d /usr/nec ]; then
- echo mips-nec-sysv"$UNAME_RELEASE"
- else
- echo mips-unknown-sysv"$UNAME_RELEASE"
- fi
- exit ;;
- BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only.
- echo powerpc-be-beos
- exit ;;
- BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only.
- echo powerpc-apple-beos
- exit ;;
- BePC:BeOS:*:*) # BeOS running on Intel PC compatible.
- echo i586-pc-beos
- exit ;;
- BePC:Haiku:*:*) # Haiku running on Intel PC compatible.
- echo i586-pc-haiku
- exit ;;
- x86_64:Haiku:*:*)
- echo x86_64-unknown-haiku
- exit ;;
- SX-4:SUPER-UX:*:*)
- echo sx4-nec-superux"$UNAME_RELEASE"
- exit ;;
- SX-5:SUPER-UX:*:*)
- echo sx5-nec-superux"$UNAME_RELEASE"
- exit ;;
- SX-6:SUPER-UX:*:*)
- echo sx6-nec-superux"$UNAME_RELEASE"
- exit ;;
- SX-7:SUPER-UX:*:*)
- echo sx7-nec-superux"$UNAME_RELEASE"
- exit ;;
- SX-8:SUPER-UX:*:*)
- echo sx8-nec-superux"$UNAME_RELEASE"
- exit ;;
- SX-8R:SUPER-UX:*:*)
- echo sx8r-nec-superux"$UNAME_RELEASE"
- exit ;;
- SX-ACE:SUPER-UX:*:*)
- echo sxace-nec-superux"$UNAME_RELEASE"
- exit ;;
- Power*:Rhapsody:*:*)
- echo powerpc-apple-rhapsody"$UNAME_RELEASE"
- exit ;;
- *:Rhapsody:*:*)
- echo "$UNAME_MACHINE"-apple-rhapsody"$UNAME_RELEASE"
- exit ;;
- *:Darwin:*:*)
- UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
- eval "$set_cc_for_build"
- if test "$UNAME_PROCESSOR" = unknown ; then
- UNAME_PROCESSOR=powerpc
- fi
- if test "`echo "$UNAME_RELEASE" | sed -e 's/\..*//'`" -le 10 ; then
- if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
- if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
- (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
- grep IS_64BIT_ARCH >/dev/null
- then
- case $UNAME_PROCESSOR in
- i386) UNAME_PROCESSOR=x86_64 ;;
- powerpc) UNAME_PROCESSOR=powerpc64 ;;
- esac
- fi
- # On 10.4-10.6 one might compile for PowerPC via gcc -arch ppc
- if (echo '#ifdef __POWERPC__'; echo IS_PPC; echo '#endif') | \
- (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
- grep IS_PPC >/dev/null
- then
- UNAME_PROCESSOR=powerpc
- fi
- fi
- elif test "$UNAME_PROCESSOR" = i386 ; then
- # Avoid executing cc on OS X 10.9, as it ships with a stub
- # that puts up a graphical alert prompting to install
- # developer tools. Any system running Mac OS X 10.7 or
- # later (Darwin 11 and later) is required to have a 64-bit
- # processor. This is not true of the ARM version of Darwin
- # that Apple uses in portable devices.
- UNAME_PROCESSOR=x86_64
- fi
- echo "$UNAME_PROCESSOR"-apple-darwin"$UNAME_RELEASE"
- exit ;;
- *:procnto*:*:* | *:QNX:[0123456789]*:*)
- UNAME_PROCESSOR=`uname -p`
- if test "$UNAME_PROCESSOR" = x86; then
- UNAME_PROCESSOR=i386
- UNAME_MACHINE=pc
- fi
- echo "$UNAME_PROCESSOR"-"$UNAME_MACHINE"-nto-qnx"$UNAME_RELEASE"
- exit ;;
- *:QNX:*:4*)
- echo i386-pc-qnx
- exit ;;
- NEO-*:NONSTOP_KERNEL:*:*)
- echo neo-tandem-nsk"$UNAME_RELEASE"
- exit ;;
- NSE-*:NONSTOP_KERNEL:*:*)
- echo nse-tandem-nsk"$UNAME_RELEASE"
- exit ;;
- NSR-*:NONSTOP_KERNEL:*:*)
- echo nsr-tandem-nsk"$UNAME_RELEASE"
- exit ;;
- NSV-*:NONSTOP_KERNEL:*:*)
- echo nsv-tandem-nsk"$UNAME_RELEASE"
- exit ;;
- NSX-*:NONSTOP_KERNEL:*:*)
- echo nsx-tandem-nsk"$UNAME_RELEASE"
- exit ;;
- *:NonStop-UX:*:*)
- echo mips-compaq-nonstopux
- exit ;;
- BS2000:POSIX*:*:*)
- echo bs2000-siemens-sysv
- exit ;;
- DS/*:UNIX_System_V:*:*)
- echo "$UNAME_MACHINE"-"$UNAME_SYSTEM"-"$UNAME_RELEASE"
- exit ;;
- *:Plan9:*:*)
- # "uname -m" is not consistent, so use $cputype instead. 386
- # is converted to i386 for consistency with other x86
- # operating systems.
- if test "$cputype" = 386; then
- UNAME_MACHINE=i386
- else
- UNAME_MACHINE="$cputype"
- fi
- echo "$UNAME_MACHINE"-unknown-plan9
- exit ;;
- *:TOPS-10:*:*)
- echo pdp10-unknown-tops10
- exit ;;
- *:TENEX:*:*)
- echo pdp10-unknown-tenex
- exit ;;
- KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
- echo pdp10-dec-tops20
- exit ;;
- XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
- echo pdp10-xkl-tops20
- exit ;;
- *:TOPS-20:*:*)
- echo pdp10-unknown-tops20
- exit ;;
- *:ITS:*:*)
- echo pdp10-unknown-its
- exit ;;
- SEI:*:*:SEIUX)
- echo mips-sei-seiux"$UNAME_RELEASE"
- exit ;;
- *:DragonFly:*:*)
- echo "$UNAME_MACHINE"-unknown-dragonfly"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`"
- exit ;;
- *:*VMS:*:*)
- UNAME_MACHINE=`(uname -p) 2>/dev/null`
- case "$UNAME_MACHINE" in
- A*) echo alpha-dec-vms ; exit ;;
- I*) echo ia64-dec-vms ; exit ;;
- V*) echo vax-dec-vms ; exit ;;
- esac ;;
- *:XENIX:*:SysV)
- echo i386-pc-xenix
- exit ;;
- i*86:skyos:*:*)
- echo "$UNAME_MACHINE"-pc-skyos"`echo "$UNAME_RELEASE" | sed -e 's/ .*$//'`"
- exit ;;
- i*86:rdos:*:*)
- echo "$UNAME_MACHINE"-pc-rdos
- exit ;;
- i*86:AROS:*:*)
- echo "$UNAME_MACHINE"-pc-aros
- exit ;;
- x86_64:VMkernel:*:*)
- echo "$UNAME_MACHINE"-unknown-esx
- exit ;;
- amd64:Isilon\ OneFS:*:*)
- echo x86_64-unknown-onefs
- exit ;;
-esac
-
-echo "$0: unable to guess system type" >&2
-
-case "$UNAME_MACHINE:$UNAME_SYSTEM" in
- mips:Linux | mips64:Linux)
- # If we got here on MIPS GNU/Linux, output extra information.
- cat >&2 <<EOF
-
-NOTE: MIPS GNU/Linux systems require a C compiler to fully recognize
-the system type. Please install a C compiler and try again.
-EOF
- ;;
-esac
-
-cat >&2 <<EOF
-
-This script (version $timestamp), has failed to recognize the
-operating system you are using. If your script is old, overwrite *all*
-copies of config.guess and config.sub with the latest versions from:
-
- https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
-and
- https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
-
-If $0 has already been updated, send the following data and any
-information you think might be pertinent to config-patches@gnu.org to
-provide the necessary information to handle your system.
-
-config.guess timestamp = $timestamp
-
-uname -m = `(uname -m) 2>/dev/null || echo unknown`
-uname -r = `(uname -r) 2>/dev/null || echo unknown`
-uname -s = `(uname -s) 2>/dev/null || echo unknown`
-uname -v = `(uname -v) 2>/dev/null || echo unknown`
-
-/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
-/bin/uname -X = `(/bin/uname -X) 2>/dev/null`
-
-hostinfo = `(hostinfo) 2>/dev/null`
-/bin/universe = `(/bin/universe) 2>/dev/null`
-/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null`
-/bin/arch = `(/bin/arch) 2>/dev/null`
-/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null`
-/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
-
-UNAME_MACHINE = "$UNAME_MACHINE"
-UNAME_RELEASE = "$UNAME_RELEASE"
-UNAME_SYSTEM = "$UNAME_SYSTEM"
-UNAME_VERSION = "$UNAME_VERSION"
-EOF
-
-exit 1
-
-# Local variables:
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-start: "timestamp='"
-# time-stamp-format: "%:y-%02m-%02d"
-# time-stamp-end: "'"
-# End:
diff --git a/3rdparty/libpng/libpng-1.6.37/config.h b/3rdparty/libpng/libpng-1.6.37/config.h
deleted file mode 100644
index a981334..0000000
--- a/3rdparty/libpng/libpng-1.6.37/config.h
+++ /dev/null
@@ -1,127 +0,0 @@
-/* config.h. Generated from config.h.in by configure. */
-/* config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* Define to 1 if you have the `feenableexcept' function. */
-#define HAVE_FEENABLEEXCEPT 1
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the `m' library (-lm). */
-#define HAVE_LIBM 1
-
-/* Define to 1 if you have the `z' library (-lz). */
-#define HAVE_LIBZ 1
-
-/* Define to 1 if you have the <memory.h> header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the `pow' function. */
-/* #undef HAVE_POW */
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to the sub-directory where libtool stores uninstalled libraries. */
-#define LT_OBJDIR ".libs/"
-
-/* Name of package */
-#define PACKAGE "libpng"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT "png-mng-implement@lists.sourceforge.net"
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME "libpng"
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING "libpng 1.6.37"
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME "libpng"
-
-/* Define to the home page for this package. */
-#define PACKAGE_URL ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION "1.6.37"
-
-/* Turn on ARM Neon optimizations at run-time */
-/* #undef PNG_ARM_NEON_API_SUPPORTED */
-
-/* Check for ARM Neon support at run-time */
-/* #undef PNG_ARM_NEON_CHECK_SUPPORTED */
-
-/* Enable ARM Neon optimizations */
-#define PNG_ARM_NEON_OPT 2
-
-/* Enable Intel SSE optimizations */
-/* #undef PNG_INTEL_SSE_OPT */
-
-/* Turn on MIPS MSA optimizations at run-time */
-/* #undef PNG_MIPS_MSA_API_SUPPORTED */
-
-/* Check for MIPS MSA support at run-time */
-/* #undef PNG_MIPS_MSA_CHECK_SUPPORTED */
-
-/* Enable MIPS MSA optimizations */
-/* #undef PNG_MIPS_MSA_OPT */
-
-/* Turn on POWERPC VSX optimizations at run-time */
-/* #undef PNG_POWERPC_VSX_API_SUPPORTED */
-
-/* Check for POWERPC VSX support at run-time */
-/* #undef PNG_POWERPC_VSX_CHECK_SUPPORTED */
-
-/* Enable POWERPC VSX optimizations */
-/* #undef PNG_POWERPC_VSX_OPT */
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Define to 1 if your <sys/time.h> declares `struct tm'. */
-/* #undef TM_IN_SYS_TIME */
-
-/* Version number of package */
-#define VERSION "1.6.37"
-
-/* Define to empty if `const' does not conform to ANSI C. */
-/* #undef const */
-
-/* Define to the equivalent of the C99 'restrict' keyword, or to
- nothing if this is not supported. Do not define if restrict is
- supported directly. */
-#define restrict __restrict
-/* Work around a bug in Sun C++: it does not support _Restrict or
- __restrict__, even though the corresponding Sun C compiler ends up with
- "#define restrict _Restrict" or "#define restrict __restrict__" in the
- previous line. Perhaps some future version of Sun C++ will work with
- restrict; if so, hopefully it defines __RESTRICT like Sun C does. */
-#if defined __SUNPRO_CC && !defined __RESTRICT
-# define _Restrict
-# define __restrict__
-#endif
-
-/* Define to `unsigned int' if <sys/types.h> does not define. */
-/* #undef size_t */
diff --git a/3rdparty/libpng/libpng-1.6.37/config.h.in b/3rdparty/libpng/libpng-1.6.37/config.h.in
deleted file mode 100644
index 2931048..0000000
--- a/3rdparty/libpng/libpng-1.6.37/config.h.in
+++ /dev/null
@@ -1,126 +0,0 @@
-/* config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#undef HAVE_DLFCN_H
-
-/* Define to 1 if you have the `feenableexcept' function. */
-#undef HAVE_FEENABLEEXCEPT
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#undef HAVE_INTTYPES_H
-
-/* Define to 1 if you have the `m' library (-lm). */
-#undef HAVE_LIBM
-
-/* Define to 1 if you have the `z' library (-lz). */
-#undef HAVE_LIBZ
-
-/* Define to 1 if you have the <memory.h> header file. */
-#undef HAVE_MEMORY_H
-
-/* Define to 1 if you have the `pow' function. */
-#undef HAVE_POW
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#undef HAVE_STDINT_H
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#undef HAVE_STDLIB_H
-
-/* Define to 1 if you have the <strings.h> header file. */
-#undef HAVE_STRINGS_H
-
-/* Define to 1 if you have the <string.h> header file. */
-#undef HAVE_STRING_H
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#undef HAVE_SYS_STAT_H
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#undef HAVE_SYS_TYPES_H
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#undef HAVE_UNISTD_H
-
-/* Define to the sub-directory where libtool stores uninstalled libraries. */
-#undef LT_OBJDIR
-
-/* Name of package */
-#undef PACKAGE
-
-/* Define to the address where bug reports for this package should be sent. */
-#undef PACKAGE_BUGREPORT
-
-/* Define to the full name of this package. */
-#undef PACKAGE_NAME
-
-/* Define to the full name and version of this package. */
-#undef PACKAGE_STRING
-
-/* Define to the one symbol short name of this package. */
-#undef PACKAGE_TARNAME
-
-/* Define to the home page for this package. */
-#undef PACKAGE_URL
-
-/* Define to the version of this package. */
-#undef PACKAGE_VERSION
-
-/* Turn on ARM Neon optimizations at run-time */
-#undef PNG_ARM_NEON_API_SUPPORTED
-
-/* Check for ARM Neon support at run-time */
-#undef PNG_ARM_NEON_CHECK_SUPPORTED
-
-/* Enable ARM Neon optimizations */
-#undef PNG_ARM_NEON_OPT
-
-/* Enable Intel SSE optimizations */
-#undef PNG_INTEL_SSE_OPT
-
-/* Turn on MIPS MSA optimizations at run-time */
-#undef PNG_MIPS_MSA_API_SUPPORTED
-
-/* Check for MIPS MSA support at run-time */
-#undef PNG_MIPS_MSA_CHECK_SUPPORTED
-
-/* Enable MIPS MSA optimizations */
-#undef PNG_MIPS_MSA_OPT
-
-/* Turn on POWERPC VSX optimizations at run-time */
-#undef PNG_POWERPC_VSX_API_SUPPORTED
-
-/* Check for POWERPC VSX support at run-time */
-#undef PNG_POWERPC_VSX_CHECK_SUPPORTED
-
-/* Enable POWERPC VSX optimizations */
-#undef PNG_POWERPC_VSX_OPT
-
-/* Define to 1 if you have the ANSI C header files. */
-#undef STDC_HEADERS
-
-/* Define to 1 if your <sys/time.h> declares `struct tm'. */
-#undef TM_IN_SYS_TIME
-
-/* Version number of package */
-#undef VERSION
-
-/* Define to empty if `const' does not conform to ANSI C. */
-#undef const
-
-/* Define to the equivalent of the C99 'restrict' keyword, or to
- nothing if this is not supported. Do not define if restrict is
- supported directly. */
-#undef restrict
-/* Work around a bug in Sun C++: it does not support _Restrict or
- __restrict__, even though the corresponding Sun C compiler ends up with
- "#define restrict _Restrict" or "#define restrict __restrict__" in the
- previous line. Perhaps some future version of Sun C++ will work with
- restrict; if so, hopefully it defines __RESTRICT like Sun C does. */
-#if defined __SUNPRO_CC && !defined __RESTRICT
-# define _Restrict
-# define __restrict__
-#endif
-
-/* Define to `unsigned int' if <sys/types.h> does not define. */
-#undef size_t
diff --git a/3rdparty/libpng/libpng-1.6.37/config.log b/3rdparty/libpng/libpng-1.6.37/config.log
deleted file mode 100644
index e9d678e..0000000
--- a/3rdparty/libpng/libpng-1.6.37/config.log
+++ /dev/null
@@ -1,947 +0,0 @@
-This file contains any messages produced by compilers while
-running configure, to aid debugging if configure makes a mistake.
-
-It was created by libpng configure 1.6.37, which was
-generated by GNU Autoconf 2.69. Invocation command line was
-
- $ ./configure --prefix=/home/guowenxue/fl2440/3rdparty/libpng/../install/ --build=i686-pc-linux --host=arm-linux --enable-static --enable-shared --enable-arm-neon
-
-## --------- ##
-## Platform. ##
-## --------- ##
-
-hostname = ubuntu-master
-uname -m = x86_64
-uname -r = 4.4.0-31-generic
-uname -s = Linux
-uname -v = #50~14.04.1-Ubuntu SMP Wed Jul 13 01:07:32 UTC 2016
-
-/usr/bin/uname -p = unknown
-/bin/uname -X = unknown
-
-/bin/arch = unknown
-/usr/bin/arch -k = unknown
-/usr/convex/getsysinfo = unknown
-/usr/bin/hostinfo = unknown
-/bin/machine = unknown
-/usr/bin/oslevel = unknown
-/bin/universe = unknown
-
-PATH: /home/guowenxue/bin
-PATH: /home/guowenxue/.local/bin
-PATH: /usr/local/sbin
-PATH: /usr/local/bin
-PATH: /usr/sbin
-PATH: /usr/bin
-PATH: /sbin
-PATH: /bin
-PATH: /usr/games
-PATH: /usr/local/games
-PATH: /usr/lib/jvm/java-8-oracle/bin
-PATH: /usr/lib/jvm/java-8-oracle/db/bin
-PATH: /usr/lib/jvm/java-8-oracle/jre/bin
-PATH: /opt/buildroot/cortex-a5/bin/
-
-
-## ----------- ##
-## Core tests. ##
-## ----------- ##
-
-configure:2358: checking for a BSD-compatible install
-configure:2426: result: /usr/bin/install -c
-configure:2437: checking whether build environment is sane
-configure:2492: result: yes
-configure:2551: checking for arm-linux-strip
-configure:2578: result: /opt/xtools/arm920t/bin/arm-linux-strip
-configure:2643: checking for a thread-safe mkdir -p
-configure:2682: result: /bin/mkdir -p
-configure:2689: checking for gawk
-configure:2705: found /usr/bin/gawk
-configure:2716: result: gawk
-configure:2727: checking whether make sets $(MAKE)
-configure:2749: result: yes
-configure:2778: checking whether make supports nested variables
-configure:2795: result: yes
-configure:2925: checking whether to enable maintainer-specific portions of Makefiles
-configure:2934: result: no
-configure:2974: checking for arm-linux-gcc
-configure:3001: result: /opt/xtools/arm920t/bin/arm-linux-gcc
-configure:3270: checking for C compiler version
-configure:3279: /opt/xtools/arm920t/bin/arm-linux-gcc --version >&5
-arm-linux-gcc (crosstool-NG 1.16.0) 4.4.6
-Copyright (C) 2010 Free Software Foundation, Inc.
-This is free software; see the source for copying conditions. There is NO
-warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-configure:3290: $? = 0
-configure:3279: /opt/xtools/arm920t/bin/arm-linux-gcc -v >&5
-Using built-in specs.
-Target: arm-arm920t-linux-gnueabi
-Configured with: /home/guowenxue/crosstool-ng-1.16.0/.build/src/gcc-4.4.6/configure --build=x86_64-build_unknown-linux-gnu --host=x86_64-build_unknown-linux-gnu --target=arm-arm920t-linux-gnueabi --prefix=/opt/xtools/arm920t --with-sysroot=/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot --enable-languages=c,c++ --with-arch=armv4t --with-cpu=arm9tdmi --with-tune=arm920t --with-float=soft --with-pkgversion='crosstool-NG 1.16.0' --enable-__cxa_atexit --disable-libmudflap --disable-libgomp --disable-libssp --with-gmp=/home/guowenxue/crosstool-ng-1.16.0/.build/arm-arm920t-linux-gnueabi/buildtools --with-mpfr=/home/guowenxue/crosstool-ng-1.16.0/.build/arm-arm920t-linux-gnueabi/buildtools --with-ppl=/home/guowenxue/crosstool-ng-1.16.0/.build/arm-arm920t-linux-gnueabi/buildtools --with-cloog=/home/guowenxue/crosstool-ng-1.16.0/.build/arm-arm920t-linux-gnueabi/buildtools --with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm' --enable-threads=posix --enable-target-optspace --disable-nls --disable-multilib --with-local-prefix=/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot --enable-c99 --enable-long-long
-Thread model: posix
-gcc version 4.4.6 (crosstool-NG 1.16.0)
-configure:3290: $? = 0
-configure:3279: /opt/xtools/arm920t/bin/arm-linux-gcc -V >&5
-arm-linux-gcc: '-V' option must have argument
-configure:3290: $? = 1
-configure:3279: /opt/xtools/arm920t/bin/arm-linux-gcc -qversion >&5
-arm-linux-gcc: unrecognized option '-qversion'
-arm-linux-gcc: no input files
-configure:3290: $? = 1
-configure:3310: checking whether the C compiler works
-configure:3332: /opt/xtools/arm920t/bin/arm-linux-gcc -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -L/home/guowenxue/fl2440/3rdparty/libpng/../install//lib conftest.c >&5
-configure:3336: $? = 0
-configure:3384: result: yes
-configure:3387: checking for C compiler default output file name
-configure:3389: result: a.out
-configure:3395: checking for suffix of executables
-configure:3402: /opt/xtools/arm920t/bin/arm-linux-gcc -o conftest -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -L/home/guowenxue/fl2440/3rdparty/libpng/../install//lib conftest.c >&5
-configure:3406: $? = 0
-configure:3428: result:
-configure:3450: checking whether we are cross compiling
-configure:3488: result: yes
-configure:3493: checking for suffix of object files
-configure:3515: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:3519: $? = 0
-configure:3540: result: o
-configure:3544: checking whether we are using the GNU C compiler
-configure:3563: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:3563: $? = 0
-configure:3572: result: yes
-configure:3581: checking whether /opt/xtools/arm920t/bin/arm-linux-gcc accepts -g
-configure:3601: /opt/xtools/arm920t/bin/arm-linux-gcc -c -g -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:3601: $? = 0
-configure:3642: result: yes
-configure:3659: checking for /opt/xtools/arm920t/bin/arm-linux-gcc option to accept ISO C89
-configure:3722: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:3722: $? = 0
-configure:3735: result: none needed
-configure:3760: checking whether /opt/xtools/arm920t/bin/arm-linux-gcc understands -c and -o together
-configure:3782: /opt/xtools/arm920t/bin/arm-linux-gcc -c conftest.c -o conftest2.o
-configure:3785: $? = 0
-configure:3782: /opt/xtools/arm920t/bin/arm-linux-gcc -c conftest.c -o conftest2.o
-configure:3785: $? = 0
-configure:3797: result: yes
-configure:3817: checking whether make supports the include directive
-configure:3832: make -f confmf.GNU && cat confinc.out
-this is the am__doit target
-configure:3835: $? = 0
-configure:3854: result: yes (GNU style)
-configure:3879: checking dependency style of /opt/xtools/arm920t/bin/arm-linux-gcc
-configure:3990: result: gcc3
-configure:4014: checking dependency style of /opt/xtools/arm920t/bin/arm-linux-gcc
-configure:4123: result: gcc3
-configure:4142: checking build system type
-configure:4156: result: i686-pc-linux-gnu
-configure:4176: checking host system type
-configure:4189: result: arm-unknown-linux-gnu
-configure:4209: checking for a sed that does not truncate output
-configure:4273: result: /bin/sed
-configure:4291: checking for grep that handles long lines and -e
-configure:4349: result: /bin/grep
-configure:4354: checking for egrep
-configure:4416: result: /bin/grep -E
-configure:4421: checking for fgrep
-configure:4483: result: /bin/grep -F
-configure:4510: checking how to print strings
-configure:4537: result: printf
-configure:4570: checking for ld used by /opt/xtools/arm920t/bin/arm-linux-gcc
-configure:4637: result: /opt/xtools/arm920t/bin/arm-linux-ld
-configure:4644: checking if the linker (/opt/xtools/arm920t/bin/arm-linux-ld) is GNU ld
-configure:4659: result: yes
-configure:4676: checking how to run the C preprocessor
-configure:4707: /opt/xtools/arm920t/bin/arm-linux-gcc -E -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c
-configure:4707: $? = 0
-configure:4721: /opt/xtools/arm920t/bin/arm-linux-gcc -E -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c
-conftest.c:11:28: error: ac_nonexistent.h: No such file or directory
-configure:4721: $? = 1
-configure: failed program was:
-| /* confdefs.h */
-| #define PACKAGE_NAME "libpng"
-| #define PACKAGE_TARNAME "libpng"
-| #define PACKAGE_VERSION "1.6.37"
-| #define PACKAGE_STRING "libpng 1.6.37"
-| #define PACKAGE_BUGREPORT "png-mng-implement@lists.sourceforge.net"
-| #define PACKAGE_URL ""
-| #define PACKAGE "libpng"
-| #define VERSION "1.6.37"
-| /* end confdefs.h. */
-| #include <ac_nonexistent.h>
-configure:4746: result: /opt/xtools/arm920t/bin/arm-linux-gcc -E
-configure:4766: /opt/xtools/arm920t/bin/arm-linux-gcc -E -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c
-configure:4766: $? = 0
-configure:4780: /opt/xtools/arm920t/bin/arm-linux-gcc -E -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c
-conftest.c:11:28: error: ac_nonexistent.h: No such file or directory
-configure:4780: $? = 1
-configure: failed program was:
-| /* confdefs.h */
-| #define PACKAGE_NAME "libpng"
-| #define PACKAGE_TARNAME "libpng"
-| #define PACKAGE_VERSION "1.6.37"
-| #define PACKAGE_STRING "libpng 1.6.37"
-| #define PACKAGE_BUGREPORT "png-mng-implement@lists.sourceforge.net"
-| #define PACKAGE_URL ""
-| #define PACKAGE "libpng"
-| #define VERSION "1.6.37"
-| /* end confdefs.h. */
-| #include <ac_nonexistent.h>
-configure:4812: checking for gawk
-configure:4839: result: gawk
-configure:4851: checking whether ln -s works
-configure:4855: result: yes
-configure:4862: checking whether make sets $(MAKE)
-configure:4884: result: yes
-configure:4936: checking for BSD- or MS-compatible name lister (nm)
-configure:4990: result: /opt/xtools/arm920t/bin/arm-linux-nm
-configure:5120: checking the name lister (/opt/xtools/arm920t/bin/arm-linux-nm) interface
-configure:5127: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:5130: /opt/xtools/arm920t/bin/arm-linux-nm "conftest.o"
-configure:5133: output
-00000000 B some_variable
-configure:5140: result: BSD nm
-configure:5144: checking the maximum length of command line arguments
-configure:5275: result: 1572864
-configure:5323: checking how to convert i686-pc-linux-gnu file names to arm-unknown-linux-gnu format
-configure:5363: result: func_convert_file_noop
-configure:5370: checking how to convert i686-pc-linux-gnu file names to toolchain format
-configure:5390: result: func_convert_file_noop
-configure:5397: checking for /opt/xtools/arm920t/bin/arm-linux-ld option to reload object files
-configure:5404: result: -r
-configure:5438: checking for arm-linux-objdump
-configure:5465: result: /opt/xtools/arm920t/bin/arm-linux-objdump
-configure:5534: checking how to recognize dependent libraries
-configure:5734: result: pass_all
-configure:5779: checking for arm-linux-dlltool
-configure:5809: result: no
-configure:5819: checking for dlltool
-configure:5849: result: no
-configure:5876: checking how to associate runtime and link libraries
-configure:5903: result: printf %s\n
-configure:5920: checking for arm-linux-ar
-configure:5947: result: /opt/xtools/arm920t/bin/arm-linux-ar
-configure:6028: checking for archiver @FILE support
-configure:6045: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:6045: $? = 0
-configure:6048: /opt/xtools/arm920t/bin/arm-linux-ar cru libconftest.a @conftest.lst >&5
-configure:6051: $? = 0
-configure:6056: /opt/xtools/arm920t/bin/arm-linux-ar cru libconftest.a @conftest.lst >&5
-/opt/xtools/arm920t/bin/arm-linux-ar: conftest.o: No such file or directory
-configure:6059: $? = 1
-configure:6071: result: @
-configure:6089: checking for arm-linux-strip
-configure:6116: result: /opt/xtools/arm920t/bin/arm-linux-strip
-configure:6188: checking for arm-linux-ranlib
-configure:6215: result: /opt/xtools/arm920t/bin/arm-linux-ranlib
-configure:6357: checking command to parse /opt/xtools/arm920t/bin/arm-linux-nm output from /opt/xtools/arm920t/bin/arm-linux-gcc object
-configure:6510: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:6513: $? = 0
-configure:6517: /opt/xtools/arm920t/bin/arm-linux-nm conftest.o \| sed -n -e 's/^.*[ ]\([ABCDGIRSTW][ABCDGIRSTW]*\)[ ][ ]*\([_A-Za-z][_A-Za-z0-9]*\)$/\1 \2 \2/p' | sed '/ __gnu_lto/d' \> conftest.nm
-configure:6520: $? = 0
-configure:6586: /opt/xtools/arm920t/bin/arm-linux-gcc -o conftest -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -L/home/guowenxue/fl2440/3rdparty/libpng/../install//lib conftest.c conftstm.o >&5
-configure:6589: $? = 0
-configure:6627: result: ok
-configure:6674: checking for sysroot
-configure:6704: result: no
-configure:6711: checking for a working dd
-configure:6749: result: /bin/dd
-configure:6753: checking how to truncate binary pipes
-configure:6768: result: /bin/dd bs=4096 count=1
-configure:7057: checking for arm-linux-mt
-configure:7087: result: no
-configure:7097: checking for mt
-configure:7113: found /bin/mt
-configure:7124: result: mt
-configure:7136: WARNING: using cross tools not prefixed with host triplet
-configure:7147: checking if mt is a manifest tool
-configure:7153: mt '-?'
-configure:7161: result: no
-configure:7834: checking for ANSI C header files
-configure:7854: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:7854: $? = 0
-configure:7938: result: yes
-configure:7951: checking for sys/types.h
-configure:7951: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:7951: $? = 0
-configure:7951: result: yes
-configure:7951: checking for sys/stat.h
-configure:7951: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:7951: $? = 0
-configure:7951: result: yes
-configure:7951: checking for stdlib.h
-configure:7951: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:7951: $? = 0
-configure:7951: result: yes
-configure:7951: checking for string.h
-configure:7951: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:7951: $? = 0
-configure:7951: result: yes
-configure:7951: checking for memory.h
-configure:7951: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:7951: $? = 0
-configure:7951: result: yes
-configure:7951: checking for strings.h
-configure:7951: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:7951: $? = 0
-configure:7951: result: yes
-configure:7951: checking for inttypes.h
-configure:7951: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:7951: $? = 0
-configure:7951: result: yes
-configure:7951: checking for stdint.h
-configure:7951: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:7951: $? = 0
-configure:7951: result: yes
-configure:7951: checking for unistd.h
-configure:7951: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:7951: $? = 0
-configure:7951: result: yes
-configure:7965: checking for dlfcn.h
-configure:7965: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:7965: $? = 0
-configure:7965: result: yes
-configure:8519: checking for objdir
-configure:8534: result: .libs
-configure:8798: checking if /opt/xtools/arm920t/bin/arm-linux-gcc supports -fno-rtti -fno-exceptions
-configure:8816: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -fno-rtti -fno-exceptions conftest.c >&5
-cc1: warning: command line option "-fno-rtti" is valid for C++/ObjC++ but not for C
-configure:8820: $? = 0
-configure:8833: result: no
-configure:9191: checking for /opt/xtools/arm920t/bin/arm-linux-gcc option to produce PIC
-configure:9198: result: -fPIC -DPIC
-configure:9206: checking if /opt/xtools/arm920t/bin/arm-linux-gcc PIC flag -fPIC -DPIC works
-configure:9224: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -fPIC -DPIC -DPIC conftest.c >&5
-configure:9228: $? = 0
-configure:9241: result: yes
-configure:9270: checking if /opt/xtools/arm920t/bin/arm-linux-gcc static flag -static works
-configure:9298: result: yes
-configure:9313: checking if /opt/xtools/arm920t/bin/arm-linux-gcc supports -c -o file.o
-configure:9334: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -o out/conftest2.o conftest.c >&5
-configure:9338: $? = 0
-configure:9360: result: yes
-configure:9368: checking if /opt/xtools/arm920t/bin/arm-linux-gcc supports -c -o file.o
-configure:9415: result: yes
-configure:9448: checking whether the /opt/xtools/arm920t/bin/arm-linux-gcc linker (/opt/xtools/arm920t/bin/arm-linux-ld) supports shared libraries
-configure:10707: result: yes
-configure:10744: checking whether -lc should be explicitly linked in
-configure:10752: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:10755: $? = 0
-configure:10770: /opt/xtools/arm920t/bin/arm-linux-gcc -shared -fPIC -DPIC conftest.o -v -Wl,-soname -Wl,conftest -o conftest 2\>\&1 \| /bin/grep -lc \>/dev/null 2\>\&1
-configure:10773: $? = 0
-configure:10787: result: no
-configure:10947: checking dynamic linker characteristics
-configure:11528: /opt/xtools/arm920t/bin/arm-linux-gcc -o conftest -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -L/home/guowenxue/fl2440/3rdparty/libpng/../install//lib -Wl,-rpath -Wl,/foo conftest.c >&5
-configure:11528: $? = 0
-configure:11765: result: GNU/Linux ld.so
-configure:11887: checking how to hardcode library paths into programs
-configure:11912: result: immediate
-configure:12460: checking whether stripping libraries is possible
-configure:12465: result: yes
-configure:12500: checking if libtool supports shared libraries
-configure:12502: result: yes
-configure:12505: checking whether to build shared libraries
-configure:12530: result: yes
-configure:12533: checking whether to build static libraries
-configure:12537: result: yes
-configure:12578: checking that AWK works
-configure:12584: result: ok
-configure:12635: checking if we need to force back C standard to C89
-configure:12651: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:12651: $? = 0
-configure:12652: result: no
-configure:12667: checking for ANSI C header files
-configure:12771: result: yes
-configure:12781: checking for an ANSI C-conforming const
-configure:12847: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:12847: $? = 0
-configure:12854: result: yes
-configure:12862: checking for size_t
-configure:12862: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:12862: $? = 0
-configure:12862: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-conftest.c: In function 'main':
-conftest.c:60: error: expected expression before ')' token
-configure:12862: $? = 1
-configure: failed program was:
-| /* confdefs.h */
-| #define PACKAGE_NAME "libpng"
-| #define PACKAGE_TARNAME "libpng"
-| #define PACKAGE_VERSION "1.6.37"
-| #define PACKAGE_STRING "libpng 1.6.37"
-| #define PACKAGE_BUGREPORT "png-mng-implement@lists.sourceforge.net"
-| #define PACKAGE_URL ""
-| #define PACKAGE "libpng"
-| #define VERSION "1.6.37"
-| #define STDC_HEADERS 1
-| #define HAVE_SYS_TYPES_H 1
-| #define HAVE_SYS_STAT_H 1
-| #define HAVE_STDLIB_H 1
-| #define HAVE_STRING_H 1
-| #define HAVE_MEMORY_H 1
-| #define HAVE_STRINGS_H 1
-| #define HAVE_INTTYPES_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_UNISTD_H 1
-| #define HAVE_DLFCN_H 1
-| #define LT_OBJDIR ".libs/"
-| #define STDC_HEADERS 1
-| /* end confdefs.h. */
-| #include <stdio.h>
-| #ifdef HAVE_SYS_TYPES_H
-| # include <sys/types.h>
-| #endif
-| #ifdef HAVE_SYS_STAT_H
-| # include <sys/stat.h>
-| #endif
-| #ifdef STDC_HEADERS
-| # include <stdlib.h>
-| # include <stddef.h>
-| #else
-| # ifdef HAVE_STDLIB_H
-| # include <stdlib.h>
-| # endif
-| #endif
-| #ifdef HAVE_STRING_H
-| # if !defined STDC_HEADERS && defined HAVE_MEMORY_H
-| # include <memory.h>
-| # endif
-| # include <string.h>
-| #endif
-| #ifdef HAVE_STRINGS_H
-| # include <strings.h>
-| #endif
-| #ifdef HAVE_INTTYPES_H
-| # include <inttypes.h>
-| #endif
-| #ifdef HAVE_STDINT_H
-| # include <stdint.h>
-| #endif
-| #ifdef HAVE_UNISTD_H
-| # include <unistd.h>
-| #endif
-| int
-| main ()
-| {
-| if (sizeof ((size_t)))
-| return 0;
-| ;
-| return 0;
-| }
-configure:12862: result: yes
-configure:12873: checking whether struct tm is in sys/time.h or time.h
-configure:12893: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:12893: $? = 0
-configure:12900: result: time.h
-configure:12908: checking for C/C++ restrict keyword
-configure:12933: /opt/xtools/arm920t/bin/arm-linux-gcc -c -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include conftest.c >&5
-configure:12933: $? = 0
-configure:12941: result: __restrict
-configure:12956: checking for working strtod
-configure:13007: result: no
-configure:13016: checking for pow
-configure:13016: /opt/xtools/arm920t/bin/arm-linux-gcc -o conftest -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -L/home/guowenxue/fl2440/3rdparty/libpng/../install//lib conftest.c >&5
-conftest.c:48: warning: conflicting types for built-in function 'pow'
-/tmp/cc2AFRg9.o: In function `main':
-conftest.c:(.text+0x8): undefined reference to `pow'
-collect2: ld returned 1 exit status
-configure:13016: $? = 1
-configure: failed program was:
-| /* confdefs.h */
-| #define PACKAGE_NAME "libpng"
-| #define PACKAGE_TARNAME "libpng"
-| #define PACKAGE_VERSION "1.6.37"
-| #define PACKAGE_STRING "libpng 1.6.37"
-| #define PACKAGE_BUGREPORT "png-mng-implement@lists.sourceforge.net"
-| #define PACKAGE_URL ""
-| #define PACKAGE "libpng"
-| #define VERSION "1.6.37"
-| #define STDC_HEADERS 1
-| #define HAVE_SYS_TYPES_H 1
-| #define HAVE_SYS_STAT_H 1
-| #define HAVE_STDLIB_H 1
-| #define HAVE_STRING_H 1
-| #define HAVE_MEMORY_H 1
-| #define HAVE_STRINGS_H 1
-| #define HAVE_INTTYPES_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_UNISTD_H 1
-| #define HAVE_DLFCN_H 1
-| #define LT_OBJDIR ".libs/"
-| #define STDC_HEADERS 1
-| #define restrict __restrict
-| /* end confdefs.h. */
-| /* Define pow to an innocuous variant, in case <limits.h> declares pow.
-| For example, HP-UX 11i <limits.h> declares gettimeofday. */
-| #define pow innocuous_pow
-|
-| /* System header to define __stub macros and hopefully few prototypes,
-| which can conflict with char pow (); below.
-| Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-| <limits.h> exists even on freestanding compilers. */
-|
-| #ifdef __STDC__
-| # include <limits.h>
-| #else
-| # include <assert.h>
-| #endif
-|
-| #undef pow
-|
-| /* Override any GCC internal prototype to avoid an error.
-| Use char because int might match the return type of a GCC
-| builtin and then its argument prototype would still apply. */
-| #ifdef __cplusplus
-| extern "C"
-| #endif
-| char pow ();
-| /* The GNU C library defines this for functions which it implements
-| to always fail with ENOSYS. Some functions are actually named
-| something starting with __ and the normal name is an alias. */
-| #if defined __stub_pow || defined __stub___pow
-| choke me
-| #endif
-|
-| int
-| main ()
-| {
-| return pow ();
-| ;
-| return 0;
-| }
-configure:13016: result: no
-configure:13022: checking for pow in -lm
-configure:13047: /opt/xtools/arm920t/bin/arm-linux-gcc -o conftest -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -L/home/guowenxue/fl2440/3rdparty/libpng/../install//lib conftest.c -lm >&5
-conftest.c:32: warning: conflicting types for built-in function 'pow'
-configure:13047: $? = 0
-configure:13056: result: yes
-configure:13071: checking for pow
-configure:13071: result: no
-configure:13078: checking for pow in -lm
-configure:13112: result: yes
-configure:13131: checking for clock_gettime
-configure:13131: /opt/xtools/arm920t/bin/arm-linux-gcc -o conftest -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -L/home/guowenxue/fl2440/3rdparty/libpng/../install//lib conftest.c -lm >&5
-/tmp/ccFPYVQi.o: In function `main':
-conftest.c:(.text+0x8): undefined reference to `clock_gettime'
-collect2: ld returned 1 exit status
-configure:13131: $? = 1
-configure: failed program was:
-| /* confdefs.h */
-| #define PACKAGE_NAME "libpng"
-| #define PACKAGE_TARNAME "libpng"
-| #define PACKAGE_VERSION "1.6.37"
-| #define PACKAGE_STRING "libpng 1.6.37"
-| #define PACKAGE_BUGREPORT "png-mng-implement@lists.sourceforge.net"
-| #define PACKAGE_URL ""
-| #define PACKAGE "libpng"
-| #define VERSION "1.6.37"
-| #define STDC_HEADERS 1
-| #define HAVE_SYS_TYPES_H 1
-| #define HAVE_SYS_STAT_H 1
-| #define HAVE_STDLIB_H 1
-| #define HAVE_STRING_H 1
-| #define HAVE_MEMORY_H 1
-| #define HAVE_STRINGS_H 1
-| #define HAVE_INTTYPES_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_UNISTD_H 1
-| #define HAVE_DLFCN_H 1
-| #define LT_OBJDIR ".libs/"
-| #define STDC_HEADERS 1
-| #define restrict __restrict
-| #define HAVE_LIBM 1
-| /* end confdefs.h. */
-| /* Define clock_gettime to an innocuous variant, in case <limits.h> declares clock_gettime.
-| For example, HP-UX 11i <limits.h> declares gettimeofday. */
-| #define clock_gettime innocuous_clock_gettime
-|
-| /* System header to define __stub macros and hopefully few prototypes,
-| which can conflict with char clock_gettime (); below.
-| Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-| <limits.h> exists even on freestanding compilers. */
-|
-| #ifdef __STDC__
-| # include <limits.h>
-| #else
-| # include <assert.h>
-| #endif
-|
-| #undef clock_gettime
-|
-| /* Override any GCC internal prototype to avoid an error.
-| Use char because int might match the return type of a GCC
-| builtin and then its argument prototype would still apply. */
-| #ifdef __cplusplus
-| extern "C"
-| #endif
-| char clock_gettime ();
-| /* The GNU C library defines this for functions which it implements
-| to always fail with ENOSYS. Some functions are actually named
-| something starting with __ and the normal name is an alias. */
-| #if defined __stub_clock_gettime || defined __stub___clock_gettime
-| choke me
-| #endif
-|
-| int
-| main ()
-| {
-| return clock_gettime ();
-| ;
-| return 0;
-| }
-configure:13131: result: no
-configure:13135: WARNING: not building timepng
-configure:13156: checking for zlibVersion in -lz
-configure:13181: /opt/xtools/arm920t/bin/arm-linux-gcc -o conftest -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -L/home/guowenxue/fl2440/3rdparty/libpng/../install//lib conftest.c -lz -lm >&5
-configure:13181: $? = 0
-configure:13190: result: yes
-configure:13255: checking for feenableexcept in -lm
-configure:13280: /opt/xtools/arm920t/bin/arm-linux-gcc -o conftest -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -L/home/guowenxue/fl2440/3rdparty/libpng/../install//lib conftest.c -lm -lz -lm >&5
-configure:13280: $? = 0
-configure:13289: result: yes
-configure:13302: checking for feenableexcept
-configure:13302: /opt/xtools/arm920t/bin/arm-linux-gcc -o conftest -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include -L/home/guowenxue/fl2440/3rdparty/libpng/../install//lib conftest.c -lm -lz -lm >&5
-configure:13302: $? = 0
-configure:13302: result: yes
-configure:13312: checking if using Solaris linker
-configure:13321: result: no
-configure:13333: checking if libraries can be versioned
-configure:13354: result: yes
-configure:13376: checking for symbol prefix
-configure:13383: result:
-configure:13405: pkgconfig directory is ${libdir}/pkgconfig
-configure:13583: WARNING: --enable-arm-neon: please specify 'check' or 'api', if
- you want the optimizations unconditionally pass -mfpu=neon
- to the compiler.
-configure:13766: Extra options for compiler:
-configure:13884: checking that generated files are newer than configure
-configure:13890: result: done
-configure:13965: creating ./config.status
-
-## ---------------------- ##
-## Running config.status. ##
-## ---------------------- ##
-
-This file was extended by libpng config.status 1.6.37, which was
-generated by GNU Autoconf 2.69. Invocation command line was
-
- CONFIG_FILES =
- CONFIG_HEADERS =
- CONFIG_LINKS =
- CONFIG_COMMANDS =
- $ ./config.status
-
-on ubuntu-master
-
-config.status:1132: creating Makefile
-config.status:1132: creating libpng.pc
-config.status:1132: creating libpng-config
-config.status:1132: creating config.h
-config.status:1361: executing depfiles commands
-config.status:1438: cd . && sed -e '/# am--include-marker/d' Makefile | make -f - am--depfiles
-config.status:1443: $? = 0
-config.status:1361: executing libtool commands
-
-## ---------------- ##
-## Cache variables. ##
-## ---------------- ##
-
-ac_cv_build=i686-pc-linux-gnu
-ac_cv_c_compiler_gnu=yes
-ac_cv_c_const=yes
-ac_cv_c_restrict=__restrict
-ac_cv_env_CCASFLAGS_set=
-ac_cv_env_CCASFLAGS_value=
-ac_cv_env_CCAS_set=
-ac_cv_env_CCAS_value=
-ac_cv_env_CC_set=set
-ac_cv_env_CC_value=/opt/xtools/arm920t/bin/arm-linux-gcc
-ac_cv_env_CFLAGS_set=set
-ac_cv_env_CFLAGS_value=' -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include'
-ac_cv_env_CPPFLAGS_set=set
-ac_cv_env_CPPFLAGS_value=' -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include'
-ac_cv_env_CPP_set=
-ac_cv_env_CPP_value=
-ac_cv_env_LDFLAGS_set=set
-ac_cv_env_LDFLAGS_value=' -L/home/guowenxue/fl2440/3rdparty/libpng/../install//lib'
-ac_cv_env_LIBS_set=
-ac_cv_env_LIBS_value=
-ac_cv_env_LT_SYS_LIBRARY_PATH_set=
-ac_cv_env_LT_SYS_LIBRARY_PATH_value=
-ac_cv_env_PNG_COPTS_set=
-ac_cv_env_PNG_COPTS_value=
-ac_cv_env_build_alias_set=set
-ac_cv_env_build_alias_value=i686-pc-linux
-ac_cv_env_host_alias_set=set
-ac_cv_env_host_alias_value=arm-linux
-ac_cv_env_target_alias_set=
-ac_cv_env_target_alias_value=
-ac_cv_func_clock_gettime=no
-ac_cv_func_feenableexcept=yes
-ac_cv_func_pow=no
-ac_cv_func_strtod=no
-ac_cv_header_dlfcn_h=yes
-ac_cv_header_inttypes_h=yes
-ac_cv_header_memory_h=yes
-ac_cv_header_stdc=yes
-ac_cv_header_stdint_h=yes
-ac_cv_header_stdlib_h=yes
-ac_cv_header_string_h=yes
-ac_cv_header_strings_h=yes
-ac_cv_header_sys_stat_h=yes
-ac_cv_header_sys_types_h=yes
-ac_cv_header_unistd_h=yes
-ac_cv_host=arm-unknown-linux-gnu
-ac_cv_lib_m_feenableexcept=yes
-ac_cv_lib_m_pow=yes
-ac_cv_lib_z_zlibVersion=yes
-ac_cv_objext=o
-ac_cv_path_EGREP='/bin/grep -E'
-ac_cv_path_FGREP='/bin/grep -F'
-ac_cv_path_GREP=/bin/grep
-ac_cv_path_SED=/bin/sed
-ac_cv_path_install='/usr/bin/install -c'
-ac_cv_path_lt_DD=/bin/dd
-ac_cv_path_mkdir=/bin/mkdir
-ac_cv_prog_AR=/opt/xtools/arm920t/bin/arm-linux-ar
-ac_cv_prog_AWK=gawk
-ac_cv_prog_CC=/opt/xtools/arm920t/bin/arm-linux-gcc
-ac_cv_prog_CPP='/opt/xtools/arm920t/bin/arm-linux-gcc -E'
-ac_cv_prog_OBJDUMP=/opt/xtools/arm920t/bin/arm-linux-objdump
-ac_cv_prog_RANLIB=/opt/xtools/arm920t/bin/arm-linux-ranlib
-ac_cv_prog_STRIP=/opt/xtools/arm920t/bin/arm-linux-strip
-ac_cv_prog_ac_ct_MANIFEST_TOOL=mt
-ac_cv_prog_cc_c89=
-ac_cv_prog_cc_g=yes
-ac_cv_prog_make_make_set=yes
-ac_cv_struct_tm=time.h
-ac_cv_type_size_t=yes
-am_cv_CCAS_dependencies_compiler_type=gcc3
-am_cv_CC_dependencies_compiler_type=gcc3
-am_cv_make_support_nested_variables=yes
-am_cv_prog_cc_c_o=yes
-lt_cv_ar_at_file=@
-lt_cv_archive_cmds_need_lc=no
-lt_cv_deplibs_check_method=pass_all
-lt_cv_file_magic_cmd='$MAGIC_CMD'
-lt_cv_file_magic_test_file=
-lt_cv_ld_reload_flag=-r
-lt_cv_nm_interface='BSD nm'
-lt_cv_objdir=.libs
-lt_cv_path_LD=/opt/xtools/arm920t/bin/arm-linux-ld
-lt_cv_path_NM=/opt/xtools/arm920t/bin/arm-linux-nm
-lt_cv_path_mainfest_tool=no
-lt_cv_prog_compiler_c_o=yes
-lt_cv_prog_compiler_pic='-fPIC -DPIC'
-lt_cv_prog_compiler_pic_works=yes
-lt_cv_prog_compiler_rtti_exceptions=no
-lt_cv_prog_compiler_static_works=yes
-lt_cv_prog_gnu_ld=yes
-lt_cv_sharedlib_from_linklib_cmd='printf %s\n'
-lt_cv_shlibpath_overrides_runpath=yes
-lt_cv_sys_global_symbol_pipe='sed -n -e '\''s/^.*[ ]\([ABCDGIRSTW][ABCDGIRSTW]*\)[ ][ ]*\([_A-Za-z][_A-Za-z0-9]*\)$/\1 \2 \2/p'\'' | sed '\''/ __gnu_lto/d'\'''
-lt_cv_sys_global_symbol_to_c_name_address='sed -n -e '\''s/^: \(.*\) .*$/ {"\1", (void *) 0},/p'\'' -e '\''s/^[ABCDGIRSTW][ABCDGIRSTW]* .* \(.*\)$/ {"\1", (void *) \&\1},/p'\'''
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='sed -n -e '\''s/^: \(.*\) .*$/ {"\1", (void *) 0},/p'\'' -e '\''s/^[ABCDGIRSTW][ABCDGIRSTW]* .* \(lib.*\)$/ {"\1", (void *) \&\1},/p'\'' -e '\''s/^[ABCDGIRSTW][ABCDGIRSTW]* .* \(.*\)$/ {"lib\1", (void *) \&\1},/p'\'''
-lt_cv_sys_global_symbol_to_cdecl='sed -n -e '\''s/^T .* \(.*\)$/extern int \1();/p'\'' -e '\''s/^[ABCDGIRSTW][ABCDGIRSTW]* .* \(.*\)$/extern char \1;/p'\'''
-lt_cv_sys_global_symbol_to_import=
-lt_cv_sys_max_cmd_len=1572864
-lt_cv_to_host_file_cmd=func_convert_file_noop
-lt_cv_to_tool_file_cmd=func_convert_file_noop
-lt_cv_truncate_bin='/bin/dd bs=4096 count=1'
-
-## ----------------- ##
-## Output variables. ##
-## ----------------- ##
-
-ACLOCAL='${SHELL} /home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/missing aclocal-1.16'
-AMDEPBACKSLASH='\'
-AMDEP_FALSE='#'
-AMDEP_TRUE=''
-AMTAR='$${TAR-tar}'
-AM_BACKSLASH='\'
-AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
-AM_DEFAULT_VERBOSITY='1'
-AM_V='$(V)'
-AR='/opt/xtools/arm920t/bin/arm-linux-ar'
-AS='/opt/xtools/arm920t/bin/arm-linux-as'
-AUTOCONF='${SHELL} /home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/missing autoconf'
-AUTOHEADER='${SHELL} /home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/missing autoheader'
-AUTOMAKE='${SHELL} /home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/missing automake-1.16'
-AWK='gawk'
-CC='/opt/xtools/arm920t/bin/arm-linux-gcc'
-CCAS='/opt/xtools/arm920t/bin/arm-linux-gcc'
-CCASDEPMODE='depmode=gcc3'
-CCASFLAGS=' -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include'
-CCDEPMODE='depmode=gcc3'
-CFLAGS=' -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include'
-CPP='/opt/xtools/arm920t/bin/arm-linux-gcc -E'
-CPPFLAGS=' -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include'
-CYGPATH_W='echo'
-DEFS='-DHAVE_CONFIG_H'
-DEPDIR='.deps'
-DFNCPP='/opt/xtools/arm920t/bin/arm-linux-gcc -E'
-DLLTOOL='false'
-DO_INSTALL_LIBPNG_CONFIG_FALSE='#'
-DO_INSTALL_LIBPNG_CONFIG_TRUE=''
-DO_INSTALL_LIBPNG_PC_FALSE='#'
-DO_INSTALL_LIBPNG_PC_TRUE=''
-DO_INSTALL_LINKS_FALSE='#'
-DO_INSTALL_LINKS_TRUE=''
-DO_PNG_PREFIX_FALSE=''
-DO_PNG_PREFIX_TRUE='#'
-DSYMUTIL=''
-DUMPBIN=''
-ECHO_C=''
-ECHO_N='-n'
-ECHO_T=''
-EGREP='/bin/grep -E'
-EXEEXT=''
-FGREP='/bin/grep -F'
-GREP='/bin/grep'
-HAVE_CLOCK_GETTIME_FALSE=''
-HAVE_CLOCK_GETTIME_TRUE='#'
-HAVE_LD_VERSION_SCRIPT_FALSE='#'
-HAVE_LD_VERSION_SCRIPT_TRUE=''
-HAVE_SOLARIS_LD_FALSE=''
-HAVE_SOLARIS_LD_TRUE='#'
-INSTALL_DATA='${INSTALL} -m 644'
-INSTALL_PROGRAM='${INSTALL}'
-INSTALL_SCRIPT='${INSTALL}'
-INSTALL_STRIP_PROGRAM='$(install_sh) -c -s'
-LD='/opt/xtools/arm920t/bin/arm-linux-ld'
-LDFLAGS=' -L/home/guowenxue/fl2440/3rdparty/libpng/../install//lib'
-LIBOBJS=' ${LIBOBJDIR}strtod$U.o'
-LIBS='-lm -lz -lm '
-LIBTOOL='$(SHELL) $(top_builddir)/libtool'
-LIPO=''
-LN_S='ln -s'
-LTLIBOBJS=' ${LIBOBJDIR}strtod$U.lo'
-LT_SYS_LIBRARY_PATH=''
-MAINT='#'
-MAINTAINER_MODE_FALSE=''
-MAINTAINER_MODE_TRUE='#'
-MAKEINFO='${SHELL} /home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/missing makeinfo'
-MANIFEST_TOOL=':'
-MKDIR_P='/bin/mkdir -p'
-NM='/opt/xtools/arm920t/bin/arm-linux-nm'
-NMEDIT=''
-OBJDUMP='/opt/xtools/arm920t/bin/arm-linux-objdump'
-OBJEXT='o'
-OTOOL64=''
-OTOOL=''
-PACKAGE='libpng'
-PACKAGE_BUGREPORT='png-mng-implement@lists.sourceforge.net'
-PACKAGE_NAME='libpng'
-PACKAGE_STRING='libpng 1.6.37'
-PACKAGE_TARNAME='libpng'
-PACKAGE_URL=''
-PACKAGE_VERSION='1.6.37'
-PATH_SEPARATOR=':'
-PNGLIB_MAJOR='1'
-PNGLIB_MINOR='6'
-PNGLIB_RELEASE='37'
-PNGLIB_VERSION='1.6.37'
-PNG_ARM_NEON_FALSE='#'
-PNG_ARM_NEON_TRUE=''
-PNG_COPTS=''
-PNG_INTEL_SSE_FALSE=''
-PNG_INTEL_SSE_TRUE='#'
-PNG_MIPS_MSA_FALSE='#'
-PNG_MIPS_MSA_TRUE=''
-PNG_POWERPC_VSX_FALSE='#'
-PNG_POWERPC_VSX_TRUE=''
-PNG_PREFIX=''
-POW_LIB='-lm'
-RANLIB='/opt/xtools/arm920t/bin/arm-linux-ranlib'
-SED='/bin/sed'
-SET_MAKE=''
-SHELL='/bin/bash'
-STRIP='/opt/xtools/arm920t/bin/arm-linux-strip'
-SYMBOL_PREFIX=''
-VERSION='1.6.37'
-ac_ct_AR=''
-ac_ct_CC=''
-ac_ct_DUMPBIN=''
-am__EXEEXT_FALSE=''
-am__EXEEXT_TRUE='#'
-am__fastdepCCAS_FALSE='#'
-am__fastdepCCAS_TRUE=''
-am__fastdepCC_FALSE='#'
-am__fastdepCC_TRUE=''
-am__include='include'
-am__isrc=''
-am__leading_dot='.'
-am__nodep='_no'
-am__quote=''
-am__tar='$${TAR-tar} chof - "$$tardir"'
-am__untar='$${TAR-tar} xf -'
-binconfigs='${binconfigs}'
-bindir='${exec_prefix}/bin'
-build='i686-pc-linux-gnu'
-build_alias='i686-pc-linux'
-build_cpu='i686'
-build_os='linux-gnu'
-build_vendor='pc'
-datadir='${datarootdir}'
-datarootdir='${prefix}/share'
-docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
-dvidir='${docdir}'
-exec_prefix='${prefix}'
-host='arm-unknown-linux-gnu'
-host_alias='arm-linux'
-host_cpu='arm'
-host_os='linux-gnu'
-host_vendor='unknown'
-htmldir='${docdir}'
-includedir='${prefix}/include'
-infodir='${datarootdir}/info'
-install_sh='${SHELL} /home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/install-sh'
-libdir='${exec_prefix}/lib'
-libexecdir='${exec_prefix}/libexec'
-localedir='${datarootdir}/locale'
-localstatedir='${prefix}/var'
-mandir='${datarootdir}/man'
-mkdir_p='$(MKDIR_P)'
-oldincludedir='/usr/include'
-pdfdir='${docdir}'
-pkgconfigdir='${libdir}/pkgconfig'
-prefix='/home/guowenxue/fl2440/3rdparty/libpng/../install'
-program_transform_name='s,x,x,'
-psdir='${docdir}'
-sbindir='${exec_prefix}/sbin'
-sharedstatedir='${prefix}/com'
-sysconfdir='${prefix}/etc'
-target_alias=''
-
-## ----------- ##
-## confdefs.h. ##
-## ----------- ##
-
-/* confdefs.h */
-#define PACKAGE_NAME "libpng"
-#define PACKAGE_TARNAME "libpng"
-#define PACKAGE_VERSION "1.6.37"
-#define PACKAGE_STRING "libpng 1.6.37"
-#define PACKAGE_BUGREPORT "png-mng-implement@lists.sourceforge.net"
-#define PACKAGE_URL ""
-#define PACKAGE "libpng"
-#define VERSION "1.6.37"
-#define STDC_HEADERS 1
-#define HAVE_SYS_TYPES_H 1
-#define HAVE_SYS_STAT_H 1
-#define HAVE_STDLIB_H 1
-#define HAVE_STRING_H 1
-#define HAVE_MEMORY_H 1
-#define HAVE_STRINGS_H 1
-#define HAVE_INTTYPES_H 1
-#define HAVE_STDINT_H 1
-#define HAVE_UNISTD_H 1
-#define HAVE_DLFCN_H 1
-#define LT_OBJDIR ".libs/"
-#define STDC_HEADERS 1
-#define restrict __restrict
-#define HAVE_LIBM 1
-#define HAVE_LIBZ 1
-#define HAVE_LIBM 1
-#define HAVE_FEENABLEEXCEPT 1
-#define PNG_ARM_NEON_OPT 2
-
-configure: exit 0
diff --git a/3rdparty/libpng/libpng-1.6.37/config.status b/3rdparty/libpng/libpng-1.6.37/config.status
deleted file mode 100755
index 50344b2..0000000
--- a/3rdparty/libpng/libpng-1.6.37/config.status
+++ /dev/null
@@ -1,2014 +0,0 @@
-#! /bin/bash
-# Generated by configure.
-# Run this file to recreate the current configuration.
-# Compiler output produced by configure, useful for debugging
-# configure, is in config.log if it exists.
-
-debug=false
-ac_cs_recheck=false
-ac_cs_silent=false
-
-SHELL=${CONFIG_SHELL-/bin/bash}
-export SHELL
-## -------------------- ##
-## M4sh Initialization. ##
-## -------------------- ##
-
-# Be more Bourne compatible
-DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
- emulate sh
- NULLCMD=:
- # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
-else
- case `(set -o) 2>/dev/null` in #(
- *posix*) :
- set -o posix ;; #(
- *) :
- ;;
-esac
-fi
-
-
-as_nl='
-'
-export as_nl
-# Printing a long string crashes Solaris 7 /usr/bin/printf.
-as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-# Prefer a ksh shell builtin over an external printf program on Solaris,
-# but without wasting forks for bash or zsh.
-if test -z "$BASH_VERSION$ZSH_VERSION" \
- && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
- as_echo='print -r --'
- as_echo_n='print -rn --'
-elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
- as_echo='printf %s\n'
- as_echo_n='printf %s'
-else
- if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
- as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
- as_echo_n='/usr/ucb/echo -n'
- else
- as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
- as_echo_n_body='eval
- arg=$1;
- case $arg in #(
- *"$as_nl"*)
- expr "X$arg" : "X\\(.*\\)$as_nl";
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-exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
-include_expsyms=''
-prelink_cmds=''
-postlink_cmds=''
-file_list_spec=''
-variables_saved_for_relink='PATH LD_LIBRARY_PATH LD_RUN_PATH GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH'
-need_lib_prefix='no'
-need_version='no'
-version_type='linux'
-runpath_var='LD_RUN_PATH'
-shlibpath_var='LD_LIBRARY_PATH'
-shlibpath_overrides_runpath='yes'
-libname_spec='lib$name'
-library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
-soname_spec='$libname$release$shared_ext$major'
-install_override_mode=''
-postinstall_cmds=''
-postuninstall_cmds=''
-finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
-finish_eval=''
-hardcode_into_libs='yes'
-sys_lib_search_path_spec='/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6 /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/lib /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/lib /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/lib '
-configure_time_dlsearch_path='/lib /usr/lib /usr/lib/x86_64-linux-gnu/libfakeroot /usr/local/freetype/lib /lib/i386-linux-gnu /usr/lib/i386-linux-gnu /lib/i686-linux-gnu /usr/lib/i686-linux-gnu /usr/local/lib /usr/local/mysql/lib /usr/local/lib /lib/x86_64-linux-gnu /usr/lib/x86_64-linux-gnu /usr/lib/x86_64-linux-gnu/mesa-egl /usr/lib/x86_64-linux-gnu/mesa /lib32 /usr/lib32 /libx32 /usr/libx32 /lib /usr/lib /usr/local/lib '
-configure_time_lt_sys_library_path=''
-hardcode_action='immediate'
-enable_dlopen='unknown'
-enable_dlopen_self='unknown'
-enable_dlopen_self_static='unknown'
-old_striplib='/opt/xtools/arm920t/bin/arm-linux-strip --strip-debug'
-striplib='/opt/xtools/arm920t/bin/arm-linux-strip --strip-unneeded'
-
-LTCC='/opt/xtools/arm920t/bin/arm-linux-gcc'
-LTCFLAGS=' -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include'
-compiler='/opt/xtools/arm920t/bin/arm-linux-gcc'
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
- eval 'cat <<_LTECHO_EOF
-$1
-_LTECHO_EOF'
-}
-
-# Quote evaled strings.
-for var in SED GREP EGREP FGREP SHELL ECHO LD AS DLLTOOL OBJDUMP PATH_SEPARATOR NM LN_S lt_SP2NL lt_NL2SP reload_flag deplibs_check_method file_magic_cmd file_magic_glob want_nocaseglob sharedlib_from_linklib_cmd AR AR_FLAGS archiver_list_spec STRIP RANLIB CC CFLAGS compiler lt_cv_sys_global_symbol_pipe lt_cv_sys_global_symbol_to_cdecl lt_cv_sys_global_symbol_to_import lt_cv_sys_global_symbol_to_c_name_address lt_cv_sys_global_symbol_to_c_name_address_lib_prefix lt_cv_nm_interface nm_file_list_spec lt_cv_truncate_bin lt_prog_compiler_no_builtin_flag lt_prog_compiler_pic lt_prog_compiler_wl lt_prog_compiler_static lt_cv_prog_compiler_c_o need_locks MANIFEST_TOOL DSYMUTIL NMEDIT LIPO OTOOL OTOOL64 shrext_cmds export_dynamic_flag_spec whole_archive_flag_spec compiler_needs_object with_gnu_ld allow_undefined_flag no_undefined_flag hardcode_libdir_flag_spec hardcode_libdir_separator exclude_expsyms include_expsyms file_list_spec variables_saved_for_relink libname_spec library_names_spec soname_spec install_override_mode finish_eval old_striplib striplib; do
- case `eval \\$ECHO \\""\\$$var"\\"` in
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- eval "lt_$var=\\\"\`\$ECHO \"\$$var\" | \$SED \"\$sed_quote_subst\"\`\\\"" ## exclude from sc_prohibit_nested_quotes
- ;;
- *)
- eval "lt_$var=\\\"\$$var\\\""
- ;;
- esac
-done
-
-# Double-quote double-evaled strings.
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- case `eval \\$ECHO \\""\\$$var"\\"` in
- *[\\\`\"\$]*)
- eval "lt_$var=\\\"\`\$ECHO \"\$$var\" | \$SED -e \"\$double_quote_subst\" -e \"\$sed_quote_subst\" -e \"\$delay_variable_subst\"\`\\\"" ## exclude from sc_prohibit_nested_quotes
- ;;
- *)
- eval "lt_$var=\\\"\$$var\\\""
- ;;
- esac
-done
-
-ac_aux_dir='.'
-
-# See if we are running on zsh, and set the options that allow our
-# commands through without removal of \ escapes INIT.
-if test -n "${ZSH_VERSION+set}"; then
- setopt NO_GLOB_SUBST
-fi
-
-
- PACKAGE='libpng'
- VERSION='1.6.37'
- RM='rm -f'
- ofile='libtool'
-
-
-
-
-
-# Handling of arguments.
-for ac_config_target in $ac_config_targets
-do
- case $ac_config_target in
- "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
- "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
- "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;;
- "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
- "libpng.pc") CONFIG_FILES="$CONFIG_FILES libpng.pc:libpng.pc.in" ;;
- "libpng-config") CONFIG_FILES="$CONFIG_FILES libpng-config:libpng-config.in" ;;
-
- *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
- esac
-done
-
-
-# If the user did not use the arguments to specify the items to instantiate,
-# then the envvar interface is used. Set only those that are not.
-# We use the long form for the default assignment because of an extremely
-# bizarre bug on SunOS 4.1.3.
-if $ac_need_defaults; then
- test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
- test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
- test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
-fi
-
-# Have a temporary directory for convenience. Make it in the build tree
-# simply because there is no reason against having it here, and in addition,
-# creating and moving files from /tmp can sometimes cause problems.
-# Hook for its removal unless debugging.
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-{
- tmp= ac_tmp=
- trap 'exit_status=$?
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-' 0
- trap 'as_fn_exit 1' 1 2 13 15
-}
-# Create a (secure) tmp directory for tmp files.
-
-{
- tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
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-} ||
-{
- tmp=./conf$$-$RANDOM
- (umask 077 && mkdir "$tmp")
-} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
-ac_tmp=$tmp
-
-# Set up the scripts for CONFIG_FILES section.
-# No need to generate them if there are no CONFIG_FILES.
-# This happens for instance with `./config.status config.h'.
-if test -n "$CONFIG_FILES"; then
-
-
-ac_cr=`echo X | tr X '\015'`
-# On cygwin, bash can eat \r inside `` if the user requested igncr.
-# But we know of no other shell where ac_cr would be empty at this
-# point, so we can use a bashism as a fallback.
-if test "x$ac_cr" = x; then
- eval ac_cr=\$\'\\r\'
-fi
-ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
-if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
- ac_cs_awk_cr='\\r'
-else
- ac_cs_awk_cr=$ac_cr
-fi
-
-echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
-cat >>"$ac_tmp/subs1.awk" <<\_ACAWK &&
-S["am__EXEEXT_FALSE"]=""
-S["am__EXEEXT_TRUE"]="#"
-S["LTLIBOBJS"]=" ${LIBOBJDIR}strtod$U.lo"
-S["PNG_POWERPC_VSX_FALSE"]="#"
-S["PNG_POWERPC_VSX_TRUE"]=""
-S["PNG_INTEL_SSE_FALSE"]=""
-S["PNG_INTEL_SSE_TRUE"]="#"
-S["PNG_MIPS_MSA_FALSE"]="#"
-S["PNG_MIPS_MSA_TRUE"]=""
-S["PNG_ARM_NEON_FALSE"]="#"
-S["PNG_ARM_NEON_TRUE"]=""
-S["DO_INSTALL_LIBPNG_CONFIG_FALSE"]="#"
-S["DO_INSTALL_LIBPNG_CONFIG_TRUE"]=""
-S["DO_INSTALL_LIBPNG_PC_FALSE"]="#"
-S["DO_INSTALL_LIBPNG_PC_TRUE"]=""
-S["DO_INSTALL_LINKS_FALSE"]="#"
-S["DO_INSTALL_LINKS_TRUE"]=""
-S["DO_PNG_PREFIX_FALSE"]=""
-S["DO_PNG_PREFIX_TRUE"]="#"
-S["PNG_PREFIX"]=""
-S["binconfigs"]="${binconfigs}"
-S["pkgconfigdir"]="${libdir}/pkgconfig"
-S["PNGLIB_RELEASE"]="37"
-S["PNGLIB_MINOR"]="6"
-S["PNGLIB_MAJOR"]="1"
-S["PNGLIB_VERSION"]="1.6.37"
-S["SYMBOL_PREFIX"]=""
-S["HAVE_LD_VERSION_SCRIPT_FALSE"]="#"
-S["HAVE_LD_VERSION_SCRIPT_TRUE"]=""
-S["HAVE_SOLARIS_LD_FALSE"]=""
-S["HAVE_SOLARIS_LD_TRUE"]="#"
-S["HAVE_CLOCK_GETTIME_FALSE"]=""
-S["HAVE_CLOCK_GETTIME_TRUE"]="#"
-S["LIBOBJS"]=" ${LIBOBJDIR}strtod$U.o"
-S["POW_LIB"]="-lm"
-S["PNG_COPTS"]=""
-S["DFNCPP"]="/opt/xtools/arm920t/bin/arm-linux-gcc -E"
-S["LT_SYS_LIBRARY_PATH"]=""
-S["OTOOL64"]=""
-S["OTOOL"]=""
-S["LIPO"]=""
-S["NMEDIT"]=""
-S["DSYMUTIL"]=""
-S["MANIFEST_TOOL"]=":"
-S["RANLIB"]="/opt/xtools/arm920t/bin/arm-linux-ranlib"
-S["ac_ct_AR"]=""
-S["AR"]="/opt/xtools/arm920t/bin/arm-linux-ar"
-S["NM"]="/opt/xtools/arm920t/bin/arm-linux-nm"
-S["ac_ct_DUMPBIN"]=""
-S["DUMPBIN"]=""
-S["LIBTOOL"]="$(SHELL) $(top_builddir)/libtool"
-S["OBJDUMP"]="/opt/xtools/arm920t/bin/arm-linux-objdump"
-S["DLLTOOL"]="false"
-S["AS"]="/opt/xtools/arm920t/bin/arm-linux-as"
-S["LN_S"]="ln -s"
-S["CPP"]="/opt/xtools/arm920t/bin/arm-linux-gcc -E"
-S["LD"]="/opt/xtools/arm920t/bin/arm-linux-ld"
-S["FGREP"]="/bin/grep -F"
-S["EGREP"]="/bin/grep -E"
-S["GREP"]="/bin/grep"
-S["SED"]="/bin/sed"
-S["host_os"]="linux-gnu"
-S["host_vendor"]="unknown"
-S["host_cpu"]="arm"
-S["host"]="arm-unknown-linux-gnu"
-S["build_os"]="linux-gnu"
-S["build_vendor"]="pc"
-S["build_cpu"]="i686"
-S["build"]="i686-pc-linux-gnu"
-S["am__fastdepCCAS_FALSE"]="#"
-S["am__fastdepCCAS_TRUE"]=""
-S["CCASDEPMODE"]="depmode=gcc3"
-S["CCASFLAGS"]=" -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include"
-S["CCAS"]="/opt/xtools/arm920t/bin/arm-linux-gcc"
-S["am__fastdepCC_FALSE"]="#"
-S["am__fastdepCC_TRUE"]=""
-S["CCDEPMODE"]="depmode=gcc3"
-S["am__nodep"]="_no"
-S["AMDEPBACKSLASH"]="\\"
-S["AMDEP_FALSE"]="#"
-S["AMDEP_TRUE"]=""
-S["am__include"]="include"
-S["DEPDIR"]=".deps"
-S["OBJEXT"]="o"
-S["EXEEXT"]=""
-S["ac_ct_CC"]=""
-S["CPPFLAGS"]=" -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include"
-S["LDFLAGS"]=" -L/home/guowenxue/fl2440/3rdparty/libpng/../install//lib"
-S["CFLAGS"]=" -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include"
-S["CC"]="/opt/xtools/arm920t/bin/arm-linux-gcc"
-S["MAINT"]="#"
-S["MAINTAINER_MODE_FALSE"]=""
-S["MAINTAINER_MODE_TRUE"]="#"
-S["AM_BACKSLASH"]="\\"
-S["AM_DEFAULT_VERBOSITY"]="1"
-S["AM_DEFAULT_V"]="$(AM_DEFAULT_VERBOSITY)"
-S["AM_V"]="$(V)"
-S["am__untar"]="$${TAR-tar} xf -"
-S["am__tar"]="$${TAR-tar} chof - \"$$tardir\""
-S["AMTAR"]="$${TAR-tar}"
-S["am__leading_dot"]="."
-S["SET_MAKE"]=""
-S["AWK"]="gawk"
-S["mkdir_p"]="$(MKDIR_P)"
-S["MKDIR_P"]="/bin/mkdir -p"
-S["INSTALL_STRIP_PROGRAM"]="$(install_sh) -c -s"
-S["STRIP"]="/opt/xtools/arm920t/bin/arm-linux-strip"
-S["install_sh"]="${SHELL} /home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/install-sh"
-S["MAKEINFO"]="${SHELL} /home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/missing makeinfo"
-S["AUTOHEADER"]="${SHELL} /home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/missing autoheader"
-S["AUTOMAKE"]="${SHELL} /home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/missing automake-1.16"
-S["AUTOCONF"]="${SHELL} /home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/missing autoconf"
-S["ACLOCAL"]="${SHELL} /home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/missing aclocal-1.16"
-S["VERSION"]="1.6.37"
-S["PACKAGE"]="libpng"
-S["CYGPATH_W"]="echo"
-S["am__isrc"]=""
-S["INSTALL_DATA"]="${INSTALL} -m 644"
-S["INSTALL_SCRIPT"]="${INSTALL}"
-S["INSTALL_PROGRAM"]="${INSTALL}"
-S["target_alias"]=""
-S["host_alias"]="arm-linux"
-S["build_alias"]="i686-pc-linux"
-S["LIBS"]="-lm -lz -lm "
-S["ECHO_T"]=""
-S["ECHO_N"]="-n"
-S["ECHO_C"]=""
-S["DEFS"]="-DHAVE_CONFIG_H"
-S["mandir"]="${datarootdir}/man"
-S["localedir"]="${datarootdir}/locale"
-S["libdir"]="${exec_prefix}/lib"
-S["psdir"]="${docdir}"
-S["pdfdir"]="${docdir}"
-S["dvidir"]="${docdir}"
-S["htmldir"]="${docdir}"
-S["infodir"]="${datarootdir}/info"
-S["docdir"]="${datarootdir}/doc/${PACKAGE_TARNAME}"
-S["oldincludedir"]="/usr/include"
-S["includedir"]="${prefix}/include"
-S["localstatedir"]="${prefix}/var"
-S["sharedstatedir"]="${prefix}/com"
-S["sysconfdir"]="${prefix}/etc"
-S["datadir"]="${datarootdir}"
-S["datarootdir"]="${prefix}/share"
-S["libexecdir"]="${exec_prefix}/libexec"
-S["sbindir"]="${exec_prefix}/sbin"
-S["bindir"]="${exec_prefix}/bin"
-S["program_transform_name"]="s,x,x,"
-S["prefix"]="/home/guowenxue/fl2440/3rdparty/libpng/../install"
-S["exec_prefix"]="${prefix}"
-S["PACKAGE_URL"]=""
-S["PACKAGE_BUGREPORT"]="png-mng-implement@lists.sourceforge.net"
-S["PACKAGE_STRING"]="libpng 1.6.37"
-S["PACKAGE_VERSION"]="1.6.37"
-S["PACKAGE_TARNAME"]="libpng"
-S["PACKAGE_NAME"]="libpng"
-S["PATH_SEPARATOR"]=":"
-S["SHELL"]="/bin/bash"
-S["am__quote"]=""
-_ACAWK
-cat >>"$ac_tmp/subs1.awk" <<_ACAWK &&
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- FS = ""
-
-}
-{
- line = $ 0
- nfields = split(line, field, "@")
- substed = 0
- len = length(field[1])
- for (i = 2; i < nfields; i++) {
- key = field[i]
- keylen = length(key)
- if (S_is_set[key]) {
- value = S[key]
- line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
- len += length(value) + length(field[++i])
- substed = 1
- } else
- len += 1 + keylen
- }
-
- print line
-}
-
-_ACAWK
-if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
- sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
-else
- cat
-fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
- || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
-fi # test -n "$CONFIG_FILES"
-
-# Set up the scripts for CONFIG_HEADERS section.
-# No need to generate them if there are no CONFIG_HEADERS.
-# This happens for instance with `./config.status Makefile'.
-if test -n "$CONFIG_HEADERS"; then
-cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
-BEGIN {
-D["PACKAGE_NAME"]=" \"libpng\""
-D["PACKAGE_TARNAME"]=" \"libpng\""
-D["PACKAGE_VERSION"]=" \"1.6.37\""
-D["PACKAGE_STRING"]=" \"libpng 1.6.37\""
-D["PACKAGE_BUGREPORT"]=" \"png-mng-implement@lists.sourceforge.net\""
-D["PACKAGE_URL"]=" \"\""
-D["PACKAGE"]=" \"libpng\""
-D["VERSION"]=" \"1.6.37\""
-D["STDC_HEADERS"]=" 1"
-D["HAVE_SYS_TYPES_H"]=" 1"
-D["HAVE_SYS_STAT_H"]=" 1"
-D["HAVE_STDLIB_H"]=" 1"
-D["HAVE_STRING_H"]=" 1"
-D["HAVE_MEMORY_H"]=" 1"
-D["HAVE_STRINGS_H"]=" 1"
-D["HAVE_INTTYPES_H"]=" 1"
-D["HAVE_STDINT_H"]=" 1"
-D["HAVE_UNISTD_H"]=" 1"
-D["HAVE_DLFCN_H"]=" 1"
-D["LT_OBJDIR"]=" \".libs/\""
-D["STDC_HEADERS"]=" 1"
-D["restrict"]=" __restrict"
-D["HAVE_LIBM"]=" 1"
-D["HAVE_LIBZ"]=" 1"
-D["HAVE_LIBM"]=" 1"
-D["HAVE_FEENABLEEXCEPT"]=" 1"
-D["PNG_ARM_NEON_OPT"]=" 2"
- for (key in D) D_is_set[key] = 1
- FS = ""
-}
-/^[\t ]*#[\t ]*(define|undef)[\t ]+[_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ][_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789]*([\t (]|$)/ {
- line = $ 0
- split(line, arg, " ")
- if (arg[1] == "#") {
- defundef = arg[2]
- mac1 = arg[3]
- } else {
- defundef = substr(arg[1], 2)
- mac1 = arg[2]
- }
- split(mac1, mac2, "(") #)
- macro = mac2[1]
- prefix = substr(line, 1, index(line, defundef) - 1)
- if (D_is_set[macro]) {
- # Preserve the white space surrounding the "#".
- print prefix "define", macro P[macro] D[macro]
- next
- } else {
- # Replace #undef with comments. This is necessary, for example,
- # in the case of _POSIX_SOURCE, which is predefined and required
- # on some systems where configure will not decide to define it.
- if (defundef == "undef") {
- print "/*", prefix defundef, macro, "*/"
- next
- }
- }
-}
-{ print }
-_ACAWK
- as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
-fi # test -n "$CONFIG_HEADERS"
-
-
-eval set X " :F $CONFIG_FILES :H $CONFIG_HEADERS :C $CONFIG_COMMANDS"
-shift
-for ac_tag
-do
- case $ac_tag in
- :[FHLC]) ac_mode=$ac_tag; continue;;
- esac
- case $ac_mode$ac_tag in
- :[FHL]*:*);;
- :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
- :[FH]-) ac_tag=-:-;;
- :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
- esac
- ac_save_IFS=$IFS
- IFS=:
- set x $ac_tag
- IFS=$ac_save_IFS
- shift
- ac_file=$1
- shift
-
- case $ac_mode in
- :L) ac_source=$1;;
- :[FH])
- ac_file_inputs=
- for ac_f
- do
- case $ac_f in
- -) ac_f="$ac_tmp/stdin";;
- *) # Look for the file first in the build tree, then in the source tree
- # (if the path is not absolute). The absolute path cannot be DOS-style,
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- case $ac_f in
- [\\/$]*) false;;
- *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
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- as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
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- case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
- as_fn_append ac_file_inputs " '$ac_f'"
- done
-
- # Let's still pretend it is `configure' which instantiates (i.e., don't
- # use $as_me), people would be surprised to read:
- # /* config.h. Generated by config.status. */
- configure_input='Generated from '`
- $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
- `' by configure.'
- if test x"$ac_file" != x-; then
- configure_input="$ac_file. $configure_input"
- { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
-$as_echo "$as_me: creating $ac_file" >&6;}
- fi
- # Neutralize special characters interpreted by sed in replacement strings.
- case $configure_input in #(
- *\&* | *\|* | *\\* )
- ac_sed_conf_input=`$as_echo "$configure_input" |
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- *) ac_sed_conf_input=$configure_input;;
- esac
-
- case $ac_tag in
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- esac
- ;;
- esac
-
- ac_dir=`$as_dirname -- "$ac_file" ||
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-compiler_c_o=$lt_lt_cv_prog_compiler_c_o
-
-# Whether or not to add -lc for building shared libraries.
-build_libtool_need_lc=$archive_cmds_need_lc
-
-# Whether or not to disallow shared libs when runtime libs are static.
-allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes
-
-# Compiler flag to allow reflexive dlopens.
-export_dynamic_flag_spec=$lt_export_dynamic_flag_spec
-
-# Compiler flag to generate shared objects directly from archives.
-whole_archive_flag_spec=$lt_whole_archive_flag_spec
-
-# Whether the compiler copes with passing no objects directly.
-compiler_needs_object=$lt_compiler_needs_object
-
-# Create an old-style archive from a shared archive.
-old_archive_from_new_cmds=$lt_old_archive_from_new_cmds
-
-# Create a temporary old-style archive to link instead of a shared archive.
-old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds
-
-# Commands used to build a shared archive.
-archive_cmds=$lt_archive_cmds
-archive_expsym_cmds=$lt_archive_expsym_cmds
-
-# Commands used to build a loadable module if different from building
-# a shared archive.
-module_cmds=$lt_module_cmds
-module_expsym_cmds=$lt_module_expsym_cmds
-
-# Whether we are building with GNU ld or not.
-with_gnu_ld=$lt_with_gnu_ld
-
-# Flag that allows shared libraries with undefined symbols to be built.
-allow_undefined_flag=$lt_allow_undefined_flag
-
-# Flag that enforces no undefined symbols.
-no_undefined_flag=$lt_no_undefined_flag
-
-# Flag to hardcode \$libdir into a binary during linking.
-# This must work even if \$libdir does not exist
-hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec
-
-# Whether we need a single "-rpath" flag with a separated argument.
-hardcode_libdir_separator=$lt_hardcode_libdir_separator
-
-# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
-# DIR into the resulting binary.
-hardcode_direct=$hardcode_direct
-
-# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
-# DIR into the resulting binary and the resulting library dependency is
-# "absolute",i.e impossible to change by setting \$shlibpath_var if the
-# library is relocated.
-hardcode_direct_absolute=$hardcode_direct_absolute
-
-# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
-# into the resulting binary.
-hardcode_minus_L=$hardcode_minus_L
-
-# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
-# into the resulting binary.
-hardcode_shlibpath_var=$hardcode_shlibpath_var
-
-# Set to "yes" if building a shared library automatically hardcodes DIR
-# into the library and all subsequent libraries and executables linked
-# against it.
-hardcode_automatic=$hardcode_automatic
-
-# Set to yes if linker adds runtime paths of dependent libraries
-# to runtime path list.
-inherit_rpath=$inherit_rpath
-
-# Whether libtool must link a program against all its dependency libraries.
-link_all_deplibs=$link_all_deplibs
-
-# Set to "yes" if exported symbols are required.
-always_export_symbols=$always_export_symbols
-
-# The commands to list exported symbols.
-export_symbols_cmds=$lt_export_symbols_cmds
-
-# Symbols that should not be listed in the preloaded symbols.
-exclude_expsyms=$lt_exclude_expsyms
-
-# Symbols that must always be exported.
-include_expsyms=$lt_include_expsyms
-
-# Commands necessary for linking programs (against libraries) with templates.
-prelink_cmds=$lt_prelink_cmds
-
-# Commands necessary for finishing linking programs.
-postlink_cmds=$lt_postlink_cmds
-
-# Specify filename containing input files.
-file_list_spec=$lt_file_list_spec
-
-# How to hardcode a shared library path into an executable.
-hardcode_action=$hardcode_action
-
-# ### END LIBTOOL CONFIG
-
-_LT_EOF
-
- cat <<'_LT_EOF' >> "$cfgfile"
-
-# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE
-
-# func_munge_path_list VARIABLE PATH
-# -----------------------------------
-# VARIABLE is name of variable containing _space_ separated list of
-# directories to be munged by the contents of PATH, which is string
-# having a format:
-# "DIR[:DIR]:"
-# string "DIR[ DIR]" will be prepended to VARIABLE
-# ":DIR[:DIR]"
-# string "DIR[ DIR]" will be appended to VARIABLE
-# "DIRP[:DIRP]::[DIRA:]DIRA"
-# string "DIRP[ DIRP]" will be prepended to VARIABLE and string
-# "DIRA[ DIRA]" will be appended to VARIABLE
-# "DIR[:DIR]"
-# VARIABLE will be replaced by "DIR[ DIR]"
-func_munge_path_list ()
-{
- case x$2 in
- x)
- ;;
- *:)
- eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\"
- ;;
- x:*)
- eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\"
- ;;
- *::*)
- eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
- eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\"
- ;;
- *)
- eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\"
- ;;
- esac
-}
-
-
-# Calculate cc_basename. Skip known compiler wrappers and cross-prefix.
-func_cc_basename ()
-{
- for cc_temp in $*""; do
- case $cc_temp in
- compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
- distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
- \-*) ;;
- *) break;;
- esac
- done
- func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
-}
-
-
-# ### END FUNCTIONS SHARED WITH CONFIGURE
-
-_LT_EOF
-
- case $host_os in
- aix3*)
- cat <<\_LT_EOF >> "$cfgfile"
-# AIX sometimes has problems with the GCC collect2 program. For some
-# reason, if we set the COLLECT_NAMES environment variable, the problems
-# vanish in a puff of smoke.
-if test set != "${COLLECT_NAMES+set}"; then
- COLLECT_NAMES=
- export COLLECT_NAMES
-fi
-_LT_EOF
- ;;
- esac
-
-
-ltmain=$ac_aux_dir/ltmain.sh
-
-
- # We use sed instead of cat because bash on DJGPP gets confused if
- # if finds mixed CR/LF and LF-only lines. Since sed operates in
- # text mode, it properly converts lines to CR/LF. This bash problem
- # is reportedly fixed, but why not run on old versions too?
- sed '$q' "$ltmain" >> "$cfgfile" \
- || (rm -f "$cfgfile"; exit 1)
-
- mv -f "$cfgfile" "$ofile" ||
- (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
- chmod +x "$ofile"
-
- ;;
- "libpng-config":F) chmod +x libpng-config ;;
-
- esac
-done # for ac_tag
-
-
-as_fn_exit 0
diff --git a/3rdparty/libpng/libpng-1.6.37/config.sub b/3rdparty/libpng/libpng-1.6.37/config.sub
deleted file mode 100755
index 9ccf09a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/config.sub
+++ /dev/null
@@ -1,1801 +0,0 @@
-#! /bin/sh
-# Configuration validation subroutine script.
-# Copyright 1992-2018 Free Software Foundation, Inc.
-
-timestamp='2018-03-08'
-
-# This file is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, see <https://www.gnu.org/licenses/>.
-#
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that
-# program. This Exception is an additional permission under section 7
-# of the GNU General Public License, version 3 ("GPLv3").
-
-
-# Please send patches to <config-patches@gnu.org>.
-#
-# Configuration subroutine to validate and canonicalize a configuration type.
-# Supply the specified configuration type as an argument.
-# If it is invalid, we print an error message on stderr and exit with code 1.
-# Otherwise, we print the canonical config type on stdout and succeed.
-
-# You can get the latest version of this script from:
-# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
-
-# This file is supposed to be the same for all GNU packages
-# and recognize all the CPU types, system types and aliases
-# that are meaningful with *any* GNU software.
-# Each package is responsible for reporting which valid configurations
-# it does not support. The user should be able to distinguish
-# a failure to support a valid configuration from a meaningless
-# configuration.
-
-# The goal of this file is to map all the various variations of a given
-# machine specification into a single specification in the form:
-# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
-# or in some cases, the newer four-part form:
-# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
-# It is wrong to echo any other type of specification.
-
-me=`echo "$0" | sed -e 's,.*/,,'`
-
-usage="\
-Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS
-
-Canonicalize a configuration name.
-
-Options:
- -h, --help print this help, then exit
- -t, --time-stamp print date of last modification, then exit
- -v, --version print version number, then exit
-
-Report bugs and patches to <config-patches@gnu.org>."
-
-version="\
-GNU config.sub ($timestamp)
-
-Copyright 1992-2018 Free Software Foundation, Inc.
-
-This is free software; see the source for copying conditions. There is NO
-warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
-
-help="
-Try \`$me --help' for more information."
-
-# Parse command line
-while test $# -gt 0 ; do
- case $1 in
- --time-stamp | --time* | -t )
- echo "$timestamp" ; exit ;;
- --version | -v )
- echo "$version" ; exit ;;
- --help | --h* | -h )
- echo "$usage"; exit ;;
- -- ) # Stop option processing
- shift; break ;;
- - ) # Use stdin as input.
- break ;;
- -* )
- echo "$me: invalid option $1$help"
- exit 1 ;;
-
- *local*)
- # First pass through any local machine types.
- echo "$1"
- exit ;;
-
- * )
- break ;;
- esac
-done
-
-case $# in
- 0) echo "$me: missing argument$help" >&2
- exit 1;;
- 1) ;;
- *) echo "$me: too many arguments$help" >&2
- exit 1;;
-esac
-
-# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
-# Here we must recognize all the valid KERNEL-OS combinations.
-maybe_os=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
-case $maybe_os in
- nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
- linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
- knetbsd*-gnu* | netbsd*-gnu* | netbsd*-eabi* | \
- kopensolaris*-gnu* | cloudabi*-eabi* | \
- storm-chaos* | os2-emx* | rtmk-nova*)
- os=-$maybe_os
- basic_machine=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
- ;;
- android-linux)
- os=-linux-android
- basic_machine=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
- ;;
- *)
- basic_machine=`echo "$1" | sed 's/-[^-]*$//'`
- if [ "$basic_machine" != "$1" ]
- then os=`echo "$1" | sed 's/.*-/-/'`
- else os=; fi
- ;;
-esac
-
-### Let's recognize common machines as not being operating systems so
-### that things like config.sub decstation-3100 work. We also
-### recognize some manufacturers as not being operating systems, so we
-### can provide default operating systems below.
-case $os in
- -sun*os*)
- # Prevent following clause from handling this invalid input.
- ;;
- -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
- -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
- -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
- -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
- -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
- -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
- -apple | -axis | -knuth | -cray | -microblaze*)
- os=
- basic_machine=$1
- ;;
- -bluegene*)
- os=-cnk
- ;;
- -sim | -cisco | -oki | -wec | -winbond)
- os=
- basic_machine=$1
- ;;
- -scout)
- ;;
- -wrs)
- os=-vxworks
- basic_machine=$1
- ;;
- -chorusos*)
- os=-chorusos
- basic_machine=$1
- ;;
- -chorusrdb)
- os=-chorusrdb
- basic_machine=$1
- ;;
- -hiux*)
- os=-hiuxwe2
- ;;
- -sco6)
- os=-sco5v6
- basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco5)
- os=-sco3.2v5
- basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco4)
- os=-sco3.2v4
- basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco3.2.[4-9]*)
- os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
- basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco3.2v[4-9]*)
- # Don't forget version if it is 3.2v4 or newer.
- basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco5v6*)
- # Don't forget version if it is 3.2v4 or newer.
- basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco*)
- os=-sco3.2v2
- basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
- ;;
- -udk*)
- basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
- ;;
- -isc)
- os=-isc2.2
- basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
- ;;
- -clix*)
- basic_machine=clipper-intergraph
- ;;
- -isc*)
- basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
- ;;
- -lynx*178)
- os=-lynxos178
- ;;
- -lynx*5)
- os=-lynxos5
- ;;
- -lynx*)
- os=-lynxos
- ;;
- -ptx*)
- basic_machine=`echo "$1" | sed -e 's/86-.*/86-sequent/'`
- ;;
- -psos*)
- os=-psos
- ;;
- -mint | -mint[0-9]*)
- basic_machine=m68k-atari
- os=-mint
- ;;
-esac
-
-# Decode aliases for certain CPU-COMPANY combinations.
-case $basic_machine in
- # Recognize the basic CPU types without company name.
- # Some are omitted here because they have special meanings below.
- 1750a | 580 \
- | a29k \
- | aarch64 | aarch64_be \
- | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
- | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
- | am33_2.0 \
- | arc | arceb \
- | arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
- | avr | avr32 \
- | ba \
- | be32 | be64 \
- | bfin \
- | c4x | c8051 | clipper \
- | d10v | d30v | dlx | dsp16xx \
- | e2k | epiphany \
- | fido | fr30 | frv | ft32 \
- | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
- | hexagon \
- | i370 | i860 | i960 | ia16 | ia64 \
- | ip2k | iq2000 \
- | k1om \
- | le32 | le64 \
- | lm32 \
- | m32c | m32r | m32rle | m68000 | m68k | m88k \
- | maxq | mb | microblaze | microblazeel | mcore | mep | metag \
- | mips | mipsbe | mipseb | mipsel | mipsle \
- | mips16 \
- | mips64 | mips64el \
- | mips64octeon | mips64octeonel \
- | mips64orion | mips64orionel \
- | mips64r5900 | mips64r5900el \
- | mips64vr | mips64vrel \
- | mips64vr4100 | mips64vr4100el \
- | mips64vr4300 | mips64vr4300el \
- | mips64vr5000 | mips64vr5000el \
- | mips64vr5900 | mips64vr5900el \
- | mipsisa32 | mipsisa32el \
- | mipsisa32r2 | mipsisa32r2el \
- | mipsisa32r6 | mipsisa32r6el \
- | mipsisa64 | mipsisa64el \
- | mipsisa64r2 | mipsisa64r2el \
- | mipsisa64r6 | mipsisa64r6el \
- | mipsisa64sb1 | mipsisa64sb1el \
- | mipsisa64sr71k | mipsisa64sr71kel \
- | mipsr5900 | mipsr5900el \
- | mipstx39 | mipstx39el \
- | mn10200 | mn10300 \
- | moxie \
- | mt \
- | msp430 \
- | nds32 | nds32le | nds32be \
- | nios | nios2 | nios2eb | nios2el \
- | ns16k | ns32k \
- | open8 | or1k | or1knd | or32 \
- | pdp10 | pj | pjl \
- | powerpc | powerpc64 | powerpc64le | powerpcle \
- | pru \
- | pyramid \
- | riscv32 | riscv64 \
- | rl78 | rx \
- | score \
- | sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[234]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
- | sh64 | sh64le \
- | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
- | sparcv8 | sparcv9 | sparcv9b | sparcv9v \
- | spu \
- | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
- | ubicom32 \
- | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
- | visium \
- | wasm32 \
- | x86 | xc16x | xstormy16 | xtensa \
- | z8k | z80)
- basic_machine=$basic_machine-unknown
- ;;
- c54x)
- basic_machine=tic54x-unknown
- ;;
- c55x)
- basic_machine=tic55x-unknown
- ;;
- c6x)
- basic_machine=tic6x-unknown
- ;;
- leon|leon[3-9])
- basic_machine=sparc-$basic_machine
- ;;
- m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
- basic_machine=$basic_machine-unknown
- os=-none
- ;;
- m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65)
- ;;
- ms1)
- basic_machine=mt-unknown
- ;;
-
- strongarm | thumb | xscale)
- basic_machine=arm-unknown
- ;;
- xgate)
- basic_machine=$basic_machine-unknown
- os=-none
- ;;
- xscaleeb)
- basic_machine=armeb-unknown
- ;;
-
- xscaleel)
- basic_machine=armel-unknown
- ;;
-
- # We use `pc' rather than `unknown'
- # because (1) that's what they normally are, and
- # (2) the word "unknown" tends to confuse beginning users.
- i*86 | x86_64)
- basic_machine=$basic_machine-pc
- ;;
- # Object if more than one company name word.
- *-*-*)
- echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2
- exit 1
- ;;
- # Recognize the basic CPU types with company name.
- 580-* \
- | a29k-* \
- | aarch64-* | aarch64_be-* \
- | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
- | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
- | alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
- | arm-* | armbe-* | armle-* | armeb-* | armv*-* \
- | avr-* | avr32-* \
- | ba-* \
- | be32-* | be64-* \
- | bfin-* | bs2000-* \
- | c[123]* | c30-* | [cjt]90-* | c4x-* \
- | c8051-* | clipper-* | craynv-* | cydra-* \
- | d10v-* | d30v-* | dlx-* \
- | e2k-* | elxsi-* \
- | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
- | h8300-* | h8500-* \
- | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
- | hexagon-* \
- | i*86-* | i860-* | i960-* | ia16-* | ia64-* \
- | ip2k-* | iq2000-* \
- | k1om-* \
- | le32-* | le64-* \
- | lm32-* \
- | m32c-* | m32r-* | m32rle-* \
- | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
- | m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
- | microblaze-* | microblazeel-* \
- | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
- | mips16-* \
- | mips64-* | mips64el-* \
- | mips64octeon-* | mips64octeonel-* \
- | mips64orion-* | mips64orionel-* \
- | mips64r5900-* | mips64r5900el-* \
- | mips64vr-* | mips64vrel-* \
- | mips64vr4100-* | mips64vr4100el-* \
- | mips64vr4300-* | mips64vr4300el-* \
- | mips64vr5000-* | mips64vr5000el-* \
- | mips64vr5900-* | mips64vr5900el-* \
- | mipsisa32-* | mipsisa32el-* \
- | mipsisa32r2-* | mipsisa32r2el-* \
- | mipsisa32r6-* | mipsisa32r6el-* \
- | mipsisa64-* | mipsisa64el-* \
- | mipsisa64r2-* | mipsisa64r2el-* \
- | mipsisa64r6-* | mipsisa64r6el-* \
- | mipsisa64sb1-* | mipsisa64sb1el-* \
- | mipsisa64sr71k-* | mipsisa64sr71kel-* \
- | mipsr5900-* | mipsr5900el-* \
- | mipstx39-* | mipstx39el-* \
- | mmix-* \
- | mt-* \
- | msp430-* \
- | nds32-* | nds32le-* | nds32be-* \
- | nios-* | nios2-* | nios2eb-* | nios2el-* \
- | none-* | np1-* | ns16k-* | ns32k-* \
- | open8-* \
- | or1k*-* \
- | orion-* \
- | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
- | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
- | pru-* \
- | pyramid-* \
- | riscv32-* | riscv64-* \
- | rl78-* | romp-* | rs6000-* | rx-* \
- | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
- | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
- | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
- | sparclite-* \
- | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx*-* \
- | tahoe-* \
- | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
- | tile*-* \
- | tron-* \
- | ubicom32-* \
- | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
- | vax-* \
- | visium-* \
- | wasm32-* \
- | we32k-* \
- | x86-* | x86_64-* | xc16x-* | xps100-* \
- | xstormy16-* | xtensa*-* \
- | ymp-* \
- | z8k-* | z80-*)
- ;;
- # Recognize the basic CPU types without company name, with glob match.
- xtensa*)
- basic_machine=$basic_machine-unknown
- ;;
- # Recognize the various machine names and aliases which stand
- # for a CPU type and a company and sometimes even an OS.
- 386bsd)
- basic_machine=i386-pc
- os=-bsd
- ;;
- 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
- basic_machine=m68000-att
- ;;
- 3b*)
- basic_machine=we32k-att
- ;;
- a29khif)
- basic_machine=a29k-amd
- os=-udi
- ;;
- abacus)
- basic_machine=abacus-unknown
- ;;
- adobe68k)
- basic_machine=m68010-adobe
- os=-scout
- ;;
- alliant | fx80)
- basic_machine=fx80-alliant
- ;;
- altos | altos3068)
- basic_machine=m68k-altos
- ;;
- am29k)
- basic_machine=a29k-none
- os=-bsd
- ;;
- amd64)
- basic_machine=x86_64-pc
- ;;
- amd64-*)
- basic_machine=x86_64-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- ;;
- amdahl)
- basic_machine=580-amdahl
- os=-sysv
- ;;
- amiga | amiga-*)
- basic_machine=m68k-unknown
- ;;
- amigaos | amigados)
- basic_machine=m68k-unknown
- os=-amigaos
- ;;
- amigaunix | amix)
- basic_machine=m68k-unknown
- os=-sysv4
- ;;
- apollo68)
- basic_machine=m68k-apollo
- os=-sysv
- ;;
- apollo68bsd)
- basic_machine=m68k-apollo
- os=-bsd
- ;;
- aros)
- basic_machine=i386-pc
- os=-aros
- ;;
- asmjs)
- basic_machine=asmjs-unknown
- ;;
- aux)
- basic_machine=m68k-apple
- os=-aux
- ;;
- balance)
- basic_machine=ns32k-sequent
- os=-dynix
- ;;
- blackfin)
- basic_machine=bfin-unknown
- os=-linux
- ;;
- blackfin-*)
- basic_machine=bfin-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- os=-linux
- ;;
- bluegene*)
- basic_machine=powerpc-ibm
- os=-cnk
- ;;
- c54x-*)
- basic_machine=tic54x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- ;;
- c55x-*)
- basic_machine=tic55x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- ;;
- c6x-*)
- basic_machine=tic6x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- ;;
- c90)
- basic_machine=c90-cray
- os=-unicos
- ;;
- cegcc)
- basic_machine=arm-unknown
- os=-cegcc
- ;;
- convex-c1)
- basic_machine=c1-convex
- os=-bsd
- ;;
- convex-c2)
- basic_machine=c2-convex
- os=-bsd
- ;;
- convex-c32)
- basic_machine=c32-convex
- os=-bsd
- ;;
- convex-c34)
- basic_machine=c34-convex
- os=-bsd
- ;;
- convex-c38)
- basic_machine=c38-convex
- os=-bsd
- ;;
- cray | j90)
- basic_machine=j90-cray
- os=-unicos
- ;;
- craynv)
- basic_machine=craynv-cray
- os=-unicosmp
- ;;
- cr16 | cr16-*)
- basic_machine=cr16-unknown
- os=-elf
- ;;
- crds | unos)
- basic_machine=m68k-crds
- ;;
- crisv32 | crisv32-* | etraxfs*)
- basic_machine=crisv32-axis
- ;;
- cris | cris-* | etrax*)
- basic_machine=cris-axis
- ;;
- crx)
- basic_machine=crx-unknown
- os=-elf
- ;;
- da30 | da30-*)
- basic_machine=m68k-da30
- ;;
- decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
- basic_machine=mips-dec
- ;;
- decsystem10* | dec10*)
- basic_machine=pdp10-dec
- os=-tops10
- ;;
- decsystem20* | dec20*)
- basic_machine=pdp10-dec
- os=-tops20
- ;;
- delta | 3300 | motorola-3300 | motorola-delta \
- | 3300-motorola | delta-motorola)
- basic_machine=m68k-motorola
- ;;
- delta88)
- basic_machine=m88k-motorola
- os=-sysv3
- ;;
- dicos)
- basic_machine=i686-pc
- os=-dicos
- ;;
- djgpp)
- basic_machine=i586-pc
- os=-msdosdjgpp
- ;;
- dpx20 | dpx20-*)
- basic_machine=rs6000-bull
- os=-bosx
- ;;
- dpx2*)
- basic_machine=m68k-bull
- os=-sysv3
- ;;
- e500v[12])
- basic_machine=powerpc-unknown
- os=$os"spe"
- ;;
- e500v[12]-*)
- basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- os=$os"spe"
- ;;
- ebmon29k)
- basic_machine=a29k-amd
- os=-ebmon
- ;;
- elxsi)
- basic_machine=elxsi-elxsi
- os=-bsd
- ;;
- encore | umax | mmax)
- basic_machine=ns32k-encore
- ;;
- es1800 | OSE68k | ose68k | ose | OSE)
- basic_machine=m68k-ericsson
- os=-ose
- ;;
- fx2800)
- basic_machine=i860-alliant
- ;;
- genix)
- basic_machine=ns32k-ns
- ;;
- gmicro)
- basic_machine=tron-gmicro
- os=-sysv
- ;;
- go32)
- basic_machine=i386-pc
- os=-go32
- ;;
- h3050r* | hiux*)
- basic_machine=hppa1.1-hitachi
- os=-hiuxwe2
- ;;
- h8300hms)
- basic_machine=h8300-hitachi
- os=-hms
- ;;
- h8300xray)
- basic_machine=h8300-hitachi
- os=-xray
- ;;
- h8500hms)
- basic_machine=h8500-hitachi
- os=-hms
- ;;
- harris)
- basic_machine=m88k-harris
- os=-sysv3
- ;;
- hp300-*)
- basic_machine=m68k-hp
- ;;
- hp300bsd)
- basic_machine=m68k-hp
- os=-bsd
- ;;
- hp300hpux)
- basic_machine=m68k-hp
- os=-hpux
- ;;
- hp3k9[0-9][0-9] | hp9[0-9][0-9])
- basic_machine=hppa1.0-hp
- ;;
- hp9k2[0-9][0-9] | hp9k31[0-9])
- basic_machine=m68000-hp
- ;;
- hp9k3[2-9][0-9])
- basic_machine=m68k-hp
- ;;
- hp9k6[0-9][0-9] | hp6[0-9][0-9])
- basic_machine=hppa1.0-hp
- ;;
- hp9k7[0-79][0-9] | hp7[0-79][0-9])
- basic_machine=hppa1.1-hp
- ;;
- hp9k78[0-9] | hp78[0-9])
- # FIXME: really hppa2.0-hp
- basic_machine=hppa1.1-hp
- ;;
- hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
- # FIXME: really hppa2.0-hp
- basic_machine=hppa1.1-hp
- ;;
- hp9k8[0-9][13679] | hp8[0-9][13679])
- basic_machine=hppa1.1-hp
- ;;
- hp9k8[0-9][0-9] | hp8[0-9][0-9])
- basic_machine=hppa1.0-hp
- ;;
- hppaosf)
- basic_machine=hppa1.1-hp
- os=-osf
- ;;
- hppro)
- basic_machine=hppa1.1-hp
- os=-proelf
- ;;
- i370-ibm* | ibm*)
- basic_machine=i370-ibm
- ;;
- i*86v32)
- basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
- os=-sysv32
- ;;
- i*86v4*)
- basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
- os=-sysv4
- ;;
- i*86v)
- basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
- os=-sysv
- ;;
- i*86sol2)
- basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
- os=-solaris2
- ;;
- i386mach)
- basic_machine=i386-mach
- os=-mach
- ;;
- vsta)
- basic_machine=i386-unknown
- os=-vsta
- ;;
- iris | iris4d)
- basic_machine=mips-sgi
- case $os in
- -irix*)
- ;;
- *)
- os=-irix4
- ;;
- esac
- ;;
- isi68 | isi)
- basic_machine=m68k-isi
- os=-sysv
- ;;
- leon-*|leon[3-9]-*)
- basic_machine=sparc-`echo "$basic_machine" | sed 's/-.*//'`
- ;;
- m68knommu)
- basic_machine=m68k-unknown
- os=-linux
- ;;
- m68knommu-*)
- basic_machine=m68k-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- os=-linux
- ;;
- magnum | m3230)
- basic_machine=mips-mips
- os=-sysv
- ;;
- merlin)
- basic_machine=ns32k-utek
- os=-sysv
- ;;
- microblaze*)
- basic_machine=microblaze-xilinx
- ;;
- mingw64)
- basic_machine=x86_64-pc
- os=-mingw64
- ;;
- mingw32)
- basic_machine=i686-pc
- os=-mingw32
- ;;
- mingw32ce)
- basic_machine=arm-unknown
- os=-mingw32ce
- ;;
- miniframe)
- basic_machine=m68000-convergent
- ;;
- *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
- basic_machine=m68k-atari
- os=-mint
- ;;
- mips3*-*)
- basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`
- ;;
- mips3*)
- basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`-unknown
- ;;
- monitor)
- basic_machine=m68k-rom68k
- os=-coff
- ;;
- morphos)
- basic_machine=powerpc-unknown
- os=-morphos
- ;;
- moxiebox)
- basic_machine=moxie-unknown
- os=-moxiebox
- ;;
- msdos)
- basic_machine=i386-pc
- os=-msdos
- ;;
- ms1-*)
- basic_machine=`echo "$basic_machine" | sed -e 's/ms1-/mt-/'`
- ;;
- msys)
- basic_machine=i686-pc
- os=-msys
- ;;
- mvs)
- basic_machine=i370-ibm
- os=-mvs
- ;;
- nacl)
- basic_machine=le32-unknown
- os=-nacl
- ;;
- ncr3000)
- basic_machine=i486-ncr
- os=-sysv4
- ;;
- netbsd386)
- basic_machine=i386-unknown
- os=-netbsd
- ;;
- netwinder)
- basic_machine=armv4l-rebel
- os=-linux
- ;;
- news | news700 | news800 | news900)
- basic_machine=m68k-sony
- os=-newsos
- ;;
- news1000)
- basic_machine=m68030-sony
- os=-newsos
- ;;
- news-3600 | risc-news)
- basic_machine=mips-sony
- os=-newsos
- ;;
- necv70)
- basic_machine=v70-nec
- os=-sysv
- ;;
- next | m*-next)
- basic_machine=m68k-next
- case $os in
- -nextstep* )
- ;;
- -ns2*)
- os=-nextstep2
- ;;
- *)
- os=-nextstep3
- ;;
- esac
- ;;
- nh3000)
- basic_machine=m68k-harris
- os=-cxux
- ;;
- nh[45]000)
- basic_machine=m88k-harris
- os=-cxux
- ;;
- nindy960)
- basic_machine=i960-intel
- os=-nindy
- ;;
- mon960)
- basic_machine=i960-intel
- os=-mon960
- ;;
- nonstopux)
- basic_machine=mips-compaq
- os=-nonstopux
- ;;
- np1)
- basic_machine=np1-gould
- ;;
- neo-tandem)
- basic_machine=neo-tandem
- ;;
- nse-tandem)
- basic_machine=nse-tandem
- ;;
- nsr-tandem)
- basic_machine=nsr-tandem
- ;;
- nsv-tandem)
- basic_machine=nsv-tandem
- ;;
- nsx-tandem)
- basic_machine=nsx-tandem
- ;;
- op50n-* | op60c-*)
- basic_machine=hppa1.1-oki
- os=-proelf
- ;;
- openrisc | openrisc-*)
- basic_machine=or32-unknown
- ;;
- os400)
- basic_machine=powerpc-ibm
- os=-os400
- ;;
- OSE68000 | ose68000)
- basic_machine=m68000-ericsson
- os=-ose
- ;;
- os68k)
- basic_machine=m68k-none
- os=-os68k
- ;;
- pa-hitachi)
- basic_machine=hppa1.1-hitachi
- os=-hiuxwe2
- ;;
- paragon)
- basic_machine=i860-intel
- os=-osf
- ;;
- parisc)
- basic_machine=hppa-unknown
- os=-linux
- ;;
- parisc-*)
- basic_machine=hppa-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- os=-linux
- ;;
- pbd)
- basic_machine=sparc-tti
- ;;
- pbb)
- basic_machine=m68k-tti
- ;;
- pc532 | pc532-*)
- basic_machine=ns32k-pc532
- ;;
- pc98)
- basic_machine=i386-pc
- ;;
- pc98-*)
- basic_machine=i386-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- ;;
- pentium | p5 | k5 | k6 | nexgen | viac3)
- basic_machine=i586-pc
- ;;
- pentiumpro | p6 | 6x86 | athlon | athlon_*)
- basic_machine=i686-pc
- ;;
- pentiumii | pentium2 | pentiumiii | pentium3)
- basic_machine=i686-pc
- ;;
- pentium4)
- basic_machine=i786-pc
- ;;
- pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
- basic_machine=i586-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- ;;
- pentiumpro-* | p6-* | 6x86-* | athlon-*)
- basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- ;;
- pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
- basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- ;;
- pentium4-*)
- basic_machine=i786-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- ;;
- pn)
- basic_machine=pn-gould
- ;;
- power) basic_machine=power-ibm
- ;;
- ppc | ppcbe) basic_machine=powerpc-unknown
- ;;
- ppc-* | ppcbe-*)
- basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- ;;
- ppcle | powerpclittle)
- basic_machine=powerpcle-unknown
- ;;
- ppcle-* | powerpclittle-*)
- basic_machine=powerpcle-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- ;;
- ppc64) basic_machine=powerpc64-unknown
- ;;
- ppc64-*) basic_machine=powerpc64-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- ;;
- ppc64le | powerpc64little)
- basic_machine=powerpc64le-unknown
- ;;
- ppc64le-* | powerpc64little-*)
- basic_machine=powerpc64le-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- ;;
- ps2)
- basic_machine=i386-ibm
- ;;
- pw32)
- basic_machine=i586-unknown
- os=-pw32
- ;;
- rdos | rdos64)
- basic_machine=x86_64-pc
- os=-rdos
- ;;
- rdos32)
- basic_machine=i386-pc
- os=-rdos
- ;;
- rom68k)
- basic_machine=m68k-rom68k
- os=-coff
- ;;
- rm[46]00)
- basic_machine=mips-siemens
- ;;
- rtpc | rtpc-*)
- basic_machine=romp-ibm
- ;;
- s390 | s390-*)
- basic_machine=s390-ibm
- ;;
- s390x | s390x-*)
- basic_machine=s390x-ibm
- ;;
- sa29200)
- basic_machine=a29k-amd
- os=-udi
- ;;
- sb1)
- basic_machine=mipsisa64sb1-unknown
- ;;
- sb1el)
- basic_machine=mipsisa64sb1el-unknown
- ;;
- sde)
- basic_machine=mipsisa32-sde
- os=-elf
- ;;
- sei)
- basic_machine=mips-sei
- os=-seiux
- ;;
- sequent)
- basic_machine=i386-sequent
- ;;
- sh5el)
- basic_machine=sh5le-unknown
- ;;
- simso-wrs)
- basic_machine=sparclite-wrs
- os=-vxworks
- ;;
- sps7)
- basic_machine=m68k-bull
- os=-sysv2
- ;;
- spur)
- basic_machine=spur-unknown
- ;;
- st2000)
- basic_machine=m68k-tandem
- ;;
- stratus)
- basic_machine=i860-stratus
- os=-sysv4
- ;;
- strongarm-* | thumb-*)
- basic_machine=arm-`echo "$basic_machine" | sed 's/^[^-]*-//'`
- ;;
- sun2)
- basic_machine=m68000-sun
- ;;
- sun2os3)
- basic_machine=m68000-sun
- os=-sunos3
- ;;
- sun2os4)
- basic_machine=m68000-sun
- os=-sunos4
- ;;
- sun3os3)
- basic_machine=m68k-sun
- os=-sunos3
- ;;
- sun3os4)
- basic_machine=m68k-sun
- os=-sunos4
- ;;
- sun4os3)
- basic_machine=sparc-sun
- os=-sunos3
- ;;
- sun4os4)
- basic_machine=sparc-sun
- os=-sunos4
- ;;
- sun4sol2)
- basic_machine=sparc-sun
- os=-solaris2
- ;;
- sun3 | sun3-*)
- basic_machine=m68k-sun
- ;;
- sun4)
- basic_machine=sparc-sun
- ;;
- sun386 | sun386i | roadrunner)
- basic_machine=i386-sun
- ;;
- sv1)
- basic_machine=sv1-cray
- os=-unicos
- ;;
- symmetry)
- basic_machine=i386-sequent
- os=-dynix
- ;;
- t3e)
- basic_machine=alphaev5-cray
- os=-unicos
- ;;
- t90)
- basic_machine=t90-cray
- os=-unicos
- ;;
- tile*)
- basic_machine=$basic_machine-unknown
- os=-linux-gnu
- ;;
- tx39)
- basic_machine=mipstx39-unknown
- ;;
- tx39el)
- basic_machine=mipstx39el-unknown
- ;;
- toad1)
- basic_machine=pdp10-xkl
- os=-tops20
- ;;
- tower | tower-32)
- basic_machine=m68k-ncr
- ;;
- tpf)
- basic_machine=s390x-ibm
- os=-tpf
- ;;
- udi29k)
- basic_machine=a29k-amd
- os=-udi
- ;;
- ultra3)
- basic_machine=a29k-nyu
- os=-sym1
- ;;
- v810 | necv810)
- basic_machine=v810-nec
- os=-none
- ;;
- vaxv)
- basic_machine=vax-dec
- os=-sysv
- ;;
- vms)
- basic_machine=vax-dec
- os=-vms
- ;;
- vpp*|vx|vx-*)
- basic_machine=f301-fujitsu
- ;;
- vxworks960)
- basic_machine=i960-wrs
- os=-vxworks
- ;;
- vxworks68)
- basic_machine=m68k-wrs
- os=-vxworks
- ;;
- vxworks29k)
- basic_machine=a29k-wrs
- os=-vxworks
- ;;
- w65*)
- basic_machine=w65-wdc
- os=-none
- ;;
- w89k-*)
- basic_machine=hppa1.1-winbond
- os=-proelf
- ;;
- x64)
- basic_machine=x86_64-pc
- ;;
- xbox)
- basic_machine=i686-pc
- os=-mingw32
- ;;
- xps | xps100)
- basic_machine=xps100-honeywell
- ;;
- xscale-* | xscalee[bl]-*)
- basic_machine=`echo "$basic_machine" | sed 's/^xscale/arm/'`
- ;;
- ymp)
- basic_machine=ymp-cray
- os=-unicos
- ;;
- none)
- basic_machine=none-none
- os=-none
- ;;
-
-# Here we handle the default manufacturer of certain CPU types. It is in
-# some cases the only manufacturer, in others, it is the most popular.
- w89k)
- basic_machine=hppa1.1-winbond
- ;;
- op50n)
- basic_machine=hppa1.1-oki
- ;;
- op60c)
- basic_machine=hppa1.1-oki
- ;;
- romp)
- basic_machine=romp-ibm
- ;;
- mmix)
- basic_machine=mmix-knuth
- ;;
- rs6000)
- basic_machine=rs6000-ibm
- ;;
- vax)
- basic_machine=vax-dec
- ;;
- pdp11)
- basic_machine=pdp11-dec
- ;;
- we32k)
- basic_machine=we32k-att
- ;;
- sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele)
- basic_machine=sh-unknown
- ;;
- cydra)
- basic_machine=cydra-cydrome
- ;;
- orion)
- basic_machine=orion-highlevel
- ;;
- orion105)
- basic_machine=clipper-highlevel
- ;;
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- basic_machine=m68k-apple
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- pmac | pmac-mpw)
- basic_machine=powerpc-apple
- ;;
- *-unknown)
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- ;;
- *)
- echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2
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-
-# Here we canonicalize certain aliases for manufacturers.
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- basic_machine=`echo "$basic_machine" | sed 's/digital.*/dec/'`
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- basic_machine=`echo "$basic_machine" | sed 's/commodore.*/cbm/'`
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- *)
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-
-# Decode manufacturer-specific aliases for certain operating systems.
-
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- -unixware*)
- os=-sysv4.2uw
- ;;
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- os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
- ;;
- # es1800 is here to avoid being matched by es* (a different OS)
- -es1800*)
- os=-ose
- ;;
- # Now accept the basic system types.
- # The portable systems comes first.
- # Each alternative MUST end in a * to match a version number.
- # -sysv* is not here because it comes later, after sysvr4.
- -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
- | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
- | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
- | -sym* | -kopensolaris* | -plan9* \
- | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
- | -aos* | -aros* | -cloudabi* | -sortix* \
- | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
- | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
- | -hiux* | -knetbsd* | -mirbsd* | -netbsd* \
- | -bitrig* | -openbsd* | -solidbsd* | -libertybsd* \
- | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
- | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
- | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
- | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* | -hcos* \
- | -chorusos* | -chorusrdb* | -cegcc* | -glidix* \
- | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
- | -midipix* | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
- | -linux-newlib* | -linux-musl* | -linux-uclibc* \
- | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \
- | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* \
- | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
- | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
- | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
- | -morphos* | -superux* | -rtmk* | -windiss* \
- | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
- | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* \
- | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox* | -bme* \
- | -midnightbsd*)
- # Remember, each alternative MUST END IN *, to match a version number.
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- case $basic_machine in
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- *)
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- ;;
- -nto*)
- os=`echo $os | sed -e 's|nto|nto-qnx|'`
- ;;
- -sim | -xray | -os68k* | -v88r* \
- | -windows* | -osx | -abug | -netware* | -os9* \
- | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
- ;;
- -mac*)
- os=`echo "$os" | sed -e 's|mac|macos|'`
- ;;
- -linux-dietlibc)
- os=-linux-dietlibc
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- -linux*)
- os=`echo $os | sed -e 's|linux|linux-gnu|'`
- ;;
- -sunos5*)
- os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
- ;;
- -sunos6*)
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- -opened*)
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- -os400*)
- os=-os400
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- -wince*)
- os=-wince
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- -utek*)
- os=-bsd
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- -dynix*)
- os=-bsd
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- -acis*)
- os=-aos
- ;;
- -atheos*)
- os=-atheos
- ;;
- -syllable*)
- os=-syllable
- ;;
- -386bsd)
- os=-bsd
- ;;
- -ctix* | -uts*)
- os=-sysv
- ;;
- -nova*)
- os=-rtmk-nova
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- -ns2)
- os=-nextstep2
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- -nsk*)
- os=-nsk
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- # Preserve the version number of sinix5.
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- -sinix*)
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- -tpf*)
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- -triton*)
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- -oss*)
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-
-# Here we handle the default operating systems that come with various machines.
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-
-# Note that if you're going to try to match "-MANUFACTURER" here (say,
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- os=-elf
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- vendor=atari
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- vendor=stratus
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- esac
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-
-echo "$basic_machine$os"
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diff --git a/3rdparty/libpng/libpng-1.6.37/configure b/3rdparty/libpng/libpng-1.6.37/configure
deleted file mode 100755
index 1b2c463..0000000
--- a/3rdparty/libpng/libpng-1.6.37/configure
+++ /dev/null
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5
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-
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-
-
-
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-
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-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- DUMPBIN=$ac_ct_DUMPBIN
- fi
-fi
-
- case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in
- *COFF*)
- DUMPBIN="$DUMPBIN -symbols -headers"
- ;;
- *)
- DUMPBIN=:
- ;;
- esac
- fi
-
- if test : != "$DUMPBIN"; then
- NM=$DUMPBIN
- fi
-fi
-test -z "$NM" && NM=nm
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5
-$as_echo_n "checking the name lister ($NM) interface... " >&6; }
-if ${lt_cv_nm_interface+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_nm_interface="BSD nm"
- echo "int some_variable = 0;" > conftest.$ac_ext
- (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5)
- (eval "$ac_compile" 2>conftest.err)
- cat conftest.err >&5
- (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
- (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
- cat conftest.err >&5
- (eval echo "\"\$as_me:$LINENO: output\"" >&5)
- cat conftest.out >&5
- if $GREP 'External.*some_variable' conftest.out > /dev/null; then
- lt_cv_nm_interface="MS dumpbin"
- fi
- rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5
-$as_echo "$lt_cv_nm_interface" >&6; }
-
-# find the maximum length of command line arguments
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5
-$as_echo_n "checking the maximum length of command line arguments... " >&6; }
-if ${lt_cv_sys_max_cmd_len+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- i=0
- teststring=ABCD
-
- case $build_os in
- msdosdjgpp*)
- # On DJGPP, this test can blow up pretty badly due to problems in libc
- # (any single argument exceeding 2000 bytes causes a buffer overrun
- # during glob expansion). Even if it were fixed, the result of this
- # check would be larger than it should be.
- lt_cv_sys_max_cmd_len=12288; # 12K is about right
- ;;
-
- gnu*)
- # Under GNU Hurd, this test is not required because there is
- # no limit to the length of command line arguments.
- # Libtool will interpret -1 as no limit whatsoever
- lt_cv_sys_max_cmd_len=-1;
- ;;
-
- cygwin* | mingw* | cegcc*)
- # On Win9x/ME, this test blows up -- it succeeds, but takes
- # about 5 minutes as the teststring grows exponentially.
- # Worse, since 9x/ME are not pre-emptively multitasking,
- # you end up with a "frozen" computer, even though with patience
- # the test eventually succeeds (with a max line length of 256k).
- # Instead, let's just punt: use the minimum linelength reported by
- # all of the supported platforms: 8192 (on NT/2K/XP).
- lt_cv_sys_max_cmd_len=8192;
- ;;
-
- mint*)
- # On MiNT this can take a long time and run out of memory.
- lt_cv_sys_max_cmd_len=8192;
- ;;
-
- amigaos*)
- # On AmigaOS with pdksh, this test takes hours, literally.
- # So we just punt and use a minimum line length of 8192.
- lt_cv_sys_max_cmd_len=8192;
- ;;
-
- bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*)
- # This has been around since 386BSD, at least. Likely further.
- if test -x /sbin/sysctl; then
- lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
- elif test -x /usr/sbin/sysctl; then
- lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
- else
- lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs
- fi
- # And add a safety zone
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
- ;;
-
- interix*)
- # We know the value 262144 and hardcode it with a safety zone (like BSD)
- lt_cv_sys_max_cmd_len=196608
- ;;
-
- os2*)
- # The test takes a long time on OS/2.
- lt_cv_sys_max_cmd_len=8192
- ;;
-
- osf*)
- # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
- # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
- # nice to cause kernel panics so lets avoid the loop below.
- # First set a reasonable default.
- lt_cv_sys_max_cmd_len=16384
- #
- if test -x /sbin/sysconfig; then
- case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
- *1*) lt_cv_sys_max_cmd_len=-1 ;;
- esac
- fi
- ;;
- sco3.2v5*)
- lt_cv_sys_max_cmd_len=102400
- ;;
- sysv5* | sco5v6* | sysv4.2uw2*)
- kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
- if test -n "$kargmax"; then
- lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[ ]//'`
- else
- lt_cv_sys_max_cmd_len=32768
- fi
- ;;
- *)
- lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
- if test -n "$lt_cv_sys_max_cmd_len" && \
- test undefined != "$lt_cv_sys_max_cmd_len"; then
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
- else
- # Make teststring a little bigger before we do anything with it.
- # a 1K string should be a reasonable start.
- for i in 1 2 3 4 5 6 7 8; do
- teststring=$teststring$teststring
- done
- SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
- # If test is not a shell built-in, we'll probably end up computing a
- # maximum length that is only half of the actual maximum length, but
- # we can't tell.
- while { test X`env echo "$teststring$teststring" 2>/dev/null` \
- = "X$teststring$teststring"; } >/dev/null 2>&1 &&
- test 17 != "$i" # 1/2 MB should be enough
- do
- i=`expr $i + 1`
- teststring=$teststring$teststring
- done
- # Only check the string length outside the loop.
- lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
- teststring=
- # Add a significant safety factor because C++ compilers can tack on
- # massive amounts of additional arguments before passing them to the
- # linker. It appears as though 1/2 is a usable value.
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
- fi
- ;;
- esac
-
-fi
-
-if test -n "$lt_cv_sys_max_cmd_len"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5
-$as_echo "$lt_cv_sys_max_cmd_len" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
-$as_echo "none" >&6; }
-fi
-max_cmd_len=$lt_cv_sys_max_cmd_len
-
-
-
-
-
-
-: ${CP="cp -f"}
-: ${MV="mv -f"}
-: ${RM="rm -f"}
-
-if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
- lt_unset=unset
-else
- lt_unset=false
-fi
-
-
-
-
-
-# test EBCDIC or ASCII
-case `echo X|tr X '\101'` in
- A) # ASCII based system
- # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
- lt_SP2NL='tr \040 \012'
- lt_NL2SP='tr \015\012 \040\040'
- ;;
- *) # EBCDIC based system
- lt_SP2NL='tr \100 \n'
- lt_NL2SP='tr \r\n \100\100'
- ;;
-esac
-
-
-
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5
-$as_echo_n "checking how to convert $build file names to $host format... " >&6; }
-if ${lt_cv_to_host_file_cmd+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- case $host in
- *-*-mingw* )
- case $build in
- *-*-mingw* ) # actually msys
- lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32
- ;;
- *-*-cygwin* )
- lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32
- ;;
- * ) # otherwise, assume *nix
- lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32
- ;;
- esac
- ;;
- *-*-cygwin* )
- case $build in
- *-*-mingw* ) # actually msys
- lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin
- ;;
- *-*-cygwin* )
- lt_cv_to_host_file_cmd=func_convert_file_noop
- ;;
- * ) # otherwise, assume *nix
- lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin
- ;;
- esac
- ;;
- * ) # unhandled hosts (and "normal" native builds)
- lt_cv_to_host_file_cmd=func_convert_file_noop
- ;;
-esac
-
-fi
-
-to_host_file_cmd=$lt_cv_to_host_file_cmd
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5
-$as_echo "$lt_cv_to_host_file_cmd" >&6; }
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5
-$as_echo_n "checking how to convert $build file names to toolchain format... " >&6; }
-if ${lt_cv_to_tool_file_cmd+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- #assume ordinary cross tools, or native build.
-lt_cv_to_tool_file_cmd=func_convert_file_noop
-case $host in
- *-*-mingw* )
- case $build in
- *-*-mingw* ) # actually msys
- lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32
- ;;
- esac
- ;;
-esac
-
-fi
-
-to_tool_file_cmd=$lt_cv_to_tool_file_cmd
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5
-$as_echo "$lt_cv_to_tool_file_cmd" >&6; }
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5
-$as_echo_n "checking for $LD option to reload object files... " >&6; }
-if ${lt_cv_ld_reload_flag+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_ld_reload_flag='-r'
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5
-$as_echo "$lt_cv_ld_reload_flag" >&6; }
-reload_flag=$lt_cv_ld_reload_flag
-case $reload_flag in
-"" | " "*) ;;
-*) reload_flag=" $reload_flag" ;;
-esac
-reload_cmds='$LD$reload_flag -o $output$reload_objs'
-case $host_os in
- cygwin* | mingw* | pw32* | cegcc*)
- if test yes != "$GCC"; then
- reload_cmds=false
- fi
- ;;
- darwin*)
- if test yes = "$GCC"; then
- reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs'
- else
- reload_cmds='$LD$reload_flag -o $output$reload_objs'
- fi
- ;;
-esac
-
-
-
-
-
-
-
-
-
-if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
-set dummy ${ac_tool_prefix}objdump; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_OBJDUMP+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$OBJDUMP"; then
- ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-OBJDUMP=$ac_cv_prog_OBJDUMP
-if test -n "$OBJDUMP"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
-$as_echo "$OBJDUMP" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_OBJDUMP"; then
- ac_ct_OBJDUMP=$OBJDUMP
- # Extract the first word of "objdump", so it can be a program name with args.
-set dummy objdump; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_OBJDUMP"; then
- ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_OBJDUMP="objdump"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
-if test -n "$ac_ct_OBJDUMP"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
-$as_echo "$ac_ct_OBJDUMP" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_OBJDUMP" = x; then
- OBJDUMP="false"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- OBJDUMP=$ac_ct_OBJDUMP
- fi
-else
- OBJDUMP="$ac_cv_prog_OBJDUMP"
-fi
-
-test -z "$OBJDUMP" && OBJDUMP=objdump
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5
-$as_echo_n "checking how to recognize dependent libraries... " >&6; }
-if ${lt_cv_deplibs_check_method+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_file_magic_cmd='$MAGIC_CMD'
-lt_cv_file_magic_test_file=
-lt_cv_deplibs_check_method='unknown'
-# Need to set the preceding variable on all platforms that support
-# interlibrary dependencies.
-# 'none' -- dependencies not supported.
-# 'unknown' -- same as none, but documents that we really don't know.
-# 'pass_all' -- all dependencies passed with no checks.
-# 'test_compile' -- check by making test program.
-# 'file_magic [[regex]]' -- check by looking for files in library path
-# that responds to the $file_magic_cmd with a given extended regex.
-# If you have 'file' or equivalent on your system and you're not sure
-# whether 'pass_all' will *always* work, you probably want this one.
-
-case $host_os in
-aix[4-9]*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-beos*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-bsdi[45]*)
- lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)'
- lt_cv_file_magic_cmd='/usr/bin/file -L'
- lt_cv_file_magic_test_file=/shlib/libc.so
- ;;
-
-cygwin*)
- # func_win32_libid is a shell function defined in ltmain.sh
- lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
- lt_cv_file_magic_cmd='func_win32_libid'
- ;;
-
-mingw* | pw32*)
- # Base MSYS/MinGW do not provide the 'file' command needed by
- # func_win32_libid shell function, so use a weaker test based on 'objdump',
- # unless we find 'file', for example because we are cross-compiling.
- if ( file / ) >/dev/null 2>&1; then
- lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
- lt_cv_file_magic_cmd='func_win32_libid'
- else
- # Keep this pattern in sync with the one in func_win32_libid.
- lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
- lt_cv_file_magic_cmd='$OBJDUMP -f'
- fi
- ;;
-
-cegcc*)
- # use the weaker test based on 'objdump'. See mingw*.
- lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
- lt_cv_file_magic_cmd='$OBJDUMP -f'
- ;;
-
-darwin* | rhapsody*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-freebsd* | dragonfly*)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
- case $host_cpu in
- i*86 )
- # Not sure whether the presence of OpenBSD here was a mistake.
- # Let's accept both of them until this is cleared up.
- lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library'
- lt_cv_file_magic_cmd=/usr/bin/file
- lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
- ;;
- esac
- else
- lt_cv_deplibs_check_method=pass_all
- fi
- ;;
-
-haiku*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-hpux10.20* | hpux11*)
- lt_cv_file_magic_cmd=/usr/bin/file
- case $host_cpu in
- ia64*)
- lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64'
- lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
- ;;
- hppa*64*)
- lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]'
- lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
- ;;
- *)
- lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library'
- lt_cv_file_magic_test_file=/usr/lib/libc.sl
- ;;
- esac
- ;;
-
-interix[3-9]*)
- # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
- lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$'
- ;;
-
-irix5* | irix6* | nonstopux*)
- case $LD in
- *-32|*"-32 ") libmagic=32-bit;;
- *-n32|*"-n32 ") libmagic=N32;;
- *-64|*"-64 ") libmagic=64-bit;;
- *) libmagic=never-match;;
- esac
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-# This must be glibc/ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-netbsd*)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
- lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
- else
- lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$'
- fi
- ;;
-
-newos6*)
- lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)'
- lt_cv_file_magic_cmd=/usr/bin/file
- lt_cv_file_magic_test_file=/usr/lib/libnls.so
- ;;
-
-*nto* | *qnx*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-openbsd* | bitrig*)
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
- lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$'
- else
- lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
- fi
- ;;
-
-osf3* | osf4* | osf5*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-rdos*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-solaris*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-sysv4 | sysv4.3*)
- case $host_vendor in
- motorola)
- lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]'
- lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
- ;;
- ncr)
- lt_cv_deplibs_check_method=pass_all
- ;;
- sequent)
- lt_cv_file_magic_cmd='/bin/file'
- lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'
- ;;
- sni)
- lt_cv_file_magic_cmd='/bin/file'
- lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib"
- lt_cv_file_magic_test_file=/lib/libc.so
- ;;
- siemens)
- lt_cv_deplibs_check_method=pass_all
- ;;
- pc)
- lt_cv_deplibs_check_method=pass_all
- ;;
- esac
- ;;
-
-tpf*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-os2*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-esac
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5
-$as_echo "$lt_cv_deplibs_check_method" >&6; }
-
-file_magic_glob=
-want_nocaseglob=no
-if test "$build" = "$host"; then
- case $host_os in
- mingw* | pw32*)
- if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then
- want_nocaseglob=yes
- else
- file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"`
- fi
- ;;
- esac
-fi
-
-file_magic_cmd=$lt_cv_file_magic_cmd
-deplibs_check_method=$lt_cv_deplibs_check_method
-test -z "$deplibs_check_method" && deplibs_check_method=unknown
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args.
-set dummy ${ac_tool_prefix}dlltool; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_DLLTOOL+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$DLLTOOL"; then
- ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-DLLTOOL=$ac_cv_prog_DLLTOOL
-if test -n "$DLLTOOL"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
-$as_echo "$DLLTOOL" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_DLLTOOL"; then
- ac_ct_DLLTOOL=$DLLTOOL
- # Extract the first word of "dlltool", so it can be a program name with args.
-set dummy dlltool; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_DLLTOOL"; then
- ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_DLLTOOL="dlltool"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL
-if test -n "$ac_ct_DLLTOOL"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
-$as_echo "$ac_ct_DLLTOOL" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_DLLTOOL" = x; then
- DLLTOOL="false"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- DLLTOOL=$ac_ct_DLLTOOL
- fi
-else
- DLLTOOL="$ac_cv_prog_DLLTOOL"
-fi
-
-test -z "$DLLTOOL" && DLLTOOL=dlltool
-
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5
-$as_echo_n "checking how to associate runtime and link libraries... " >&6; }
-if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_sharedlib_from_linklib_cmd='unknown'
-
-case $host_os in
-cygwin* | mingw* | pw32* | cegcc*)
- # two different shell functions defined in ltmain.sh;
- # decide which one to use based on capabilities of $DLLTOOL
- case `$DLLTOOL --help 2>&1` in
- *--identify-strict*)
- lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
- ;;
- *)
- lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
- ;;
- esac
- ;;
-*)
- # fallback: assume linklib IS sharedlib
- lt_cv_sharedlib_from_linklib_cmd=$ECHO
- ;;
-esac
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5
-$as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; }
-sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
-test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
-
-
-
-
-
-
-
-
-if test -n "$ac_tool_prefix"; then
- for ac_prog in ar
- do
- # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
-set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_AR+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$AR"; then
- ac_cv_prog_AR="$AR" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-AR=$ac_cv_prog_AR
-if test -n "$AR"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
-$as_echo "$AR" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
- test -n "$AR" && break
- done
-fi
-if test -z "$AR"; then
- ac_ct_AR=$AR
- for ac_prog in ar
-do
- # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_AR+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_AR"; then
- ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_AR="$ac_prog"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_AR=$ac_cv_prog_ac_ct_AR
-if test -n "$ac_ct_AR"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
-$as_echo "$ac_ct_AR" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
- test -n "$ac_ct_AR" && break
-done
-
- if test "x$ac_ct_AR" = x; then
- AR="false"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- AR=$ac_ct_AR
- fi
-fi
-
-: ${AR=ar}
-: ${AR_FLAGS=cru}
-
-
-
-
-
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5
-$as_echo_n "checking for archiver @FILE support... " >&6; }
-if ${lt_cv_ar_at_file+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_ar_at_file=no
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
- echo conftest.$ac_objext > conftest.lst
- lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5'
- { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
- (eval $lt_ar_try) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }
- if test 0 -eq "$ac_status"; then
- # Ensure the archiver fails upon bogus file names.
- rm -f conftest.$ac_objext libconftest.a
- { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
- (eval $lt_ar_try) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }
- if test 0 -ne "$ac_status"; then
- lt_cv_ar_at_file=@
- fi
- fi
- rm -f conftest.* libconftest.a
-
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5
-$as_echo "$lt_cv_ar_at_file" >&6; }
-
-if test no = "$lt_cv_ar_at_file"; then
- archiver_list_spec=
-else
- archiver_list_spec=$lt_cv_ar_at_file
-fi
-
-
-
-
-
-
-
-if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
-set dummy ${ac_tool_prefix}strip; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_STRIP+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$STRIP"; then
- ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_STRIP="${ac_tool_prefix}strip"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-STRIP=$ac_cv_prog_STRIP
-if test -n "$STRIP"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
-$as_echo "$STRIP" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_STRIP"; then
- ac_ct_STRIP=$STRIP
- # Extract the first word of "strip", so it can be a program name with args.
-set dummy strip; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_STRIP"; then
- ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_STRIP="strip"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
-if test -n "$ac_ct_STRIP"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
-$as_echo "$ac_ct_STRIP" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_STRIP" = x; then
- STRIP=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- STRIP=$ac_ct_STRIP
- fi
-else
- STRIP="$ac_cv_prog_STRIP"
-fi
-
-test -z "$STRIP" && STRIP=:
-
-
-
-
-
-
-if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
-set dummy ${ac_tool_prefix}ranlib; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_RANLIB+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$RANLIB"; then
- ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-RANLIB=$ac_cv_prog_RANLIB
-if test -n "$RANLIB"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
-$as_echo "$RANLIB" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_RANLIB"; then
- ac_ct_RANLIB=$RANLIB
- # Extract the first word of "ranlib", so it can be a program name with args.
-set dummy ranlib; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_RANLIB+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_RANLIB"; then
- ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_RANLIB="ranlib"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
-if test -n "$ac_ct_RANLIB"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
-$as_echo "$ac_ct_RANLIB" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_RANLIB" = x; then
- RANLIB=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- RANLIB=$ac_ct_RANLIB
- fi
-else
- RANLIB="$ac_cv_prog_RANLIB"
-fi
-
-test -z "$RANLIB" && RANLIB=:
-
-
-
-
-
-
-# Determine commands to create old-style static archives.
-old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
-old_postinstall_cmds='chmod 644 $oldlib'
-old_postuninstall_cmds=
-
-if test -n "$RANLIB"; then
- case $host_os in
- bitrig* | openbsd*)
- old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
- ;;
- *)
- old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib"
- ;;
- esac
- old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib"
-fi
-
-case $host_os in
- darwin*)
- lock_old_archive_extraction=yes ;;
- *)
- lock_old_archive_extraction=no ;;
-esac
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-# If no C compiler was specified, use CC.
-LTCC=${LTCC-"$CC"}
-
-# If no C compiler flags were specified, use CFLAGS.
-LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
-
-# Allow CC to be a program name with arguments.
-compiler=$CC
-
-
-# Check for command to grab the raw symbol name followed by C symbol from nm.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5
-$as_echo_n "checking command to parse $NM output from $compiler object... " >&6; }
-if ${lt_cv_sys_global_symbol_pipe+:} false; then :
- $as_echo_n "(cached) " >&6
-else
-
-# These are sane defaults that work on at least a few old systems.
-# [They come from Ultrix. What could be older than Ultrix?!! ;)]
-
-# Character class describing NM global symbol codes.
-symcode='[BCDEGRST]'
-
-# Regexp to match symbols that can be accessed directly from C.
-sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
-
-# Define system-specific variables.
-case $host_os in
-aix*)
- symcode='[BCDT]'
- ;;
-cygwin* | mingw* | pw32* | cegcc*)
- symcode='[ABCDGISTW]'
- ;;
-hpux*)
- if test ia64 = "$host_cpu"; then
- symcode='[ABCDEGRST]'
- fi
- ;;
-irix* | nonstopux*)
- symcode='[BCDEGRST]'
- ;;
-osf*)
- symcode='[BCDEGQRST]'
- ;;
-solaris*)
- symcode='[BDRT]'
- ;;
-sco3.2v5*)
- symcode='[DT]'
- ;;
-sysv4.2uw2*)
- symcode='[DT]'
- ;;
-sysv5* | sco5v6* | unixware* | OpenUNIX*)
- symcode='[ABDT]'
- ;;
-sysv4)
- symcode='[DFNSTU]'
- ;;
-esac
-
-# If we're using GNU nm, then use its standard symbol codes.
-case `$NM -V 2>&1` in
-*GNU* | *'with BFD'*)
- symcode='[ABCDGIRSTW]' ;;
-esac
-
-if test "$lt_cv_nm_interface" = "MS dumpbin"; then
- # Gets list of data symbols to import.
- lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'"
- # Adjust the below global symbol transforms to fixup imported variables.
- lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'"
- lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'"
- lt_c_name_lib_hook="\
- -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\
- -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'"
-else
- # Disable hooks by default.
- lt_cv_sys_global_symbol_to_import=
- lt_cdecl_hook=
- lt_c_name_hook=
- lt_c_name_lib_hook=
-fi
-
-# Transform an extracted symbol line into a proper C declaration.
-# Some systems (esp. on ia64) link data and code symbols differently,
-# so use this general approach.
-lt_cv_sys_global_symbol_to_cdecl="sed -n"\
-$lt_cdecl_hook\
-" -e 's/^T .* \(.*\)$/extern int \1();/p'"\
-" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'"
-
-# Transform an extracted symbol line into symbol name and symbol address
-lt_cv_sys_global_symbol_to_c_name_address="sed -n"\
-$lt_c_name_hook\
-" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\
-" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'"
-
-# Transform an extracted symbol line into symbol name with lib prefix and
-# symbol address.
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\
-$lt_c_name_lib_hook\
-" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\
-" -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\
-" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'"
-
-# Handle CRLF in mingw tool chain
-opt_cr=
-case $build_os in
-mingw*)
- opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
- ;;
-esac
-
-# Try without a prefix underscore, then with it.
-for ac_symprfx in "" "_"; do
-
- # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
- symxfrm="\\1 $ac_symprfx\\2 \\2"
-
- # Write the raw and C identifiers.
- if test "$lt_cv_nm_interface" = "MS dumpbin"; then
- # Fake it for dumpbin and say T for any non-static function,
- # D for any global variable and I for any imported variable.
- # Also find C++ and __fastcall symbols from MSVC++,
- # which start with @ or ?.
- lt_cv_sys_global_symbol_pipe="$AWK '"\
-" {last_section=section; section=\$ 3};"\
-" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
-" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
-" /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\
-" /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\
-" /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\
-" \$ 0!~/External *\|/{next};"\
-" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
-" {if(hide[section]) next};"\
-" {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\
-" {split(\$ 0,a,/\||\r/); split(a[2],s)};"\
-" s[1]~/^[@?]/{print f,s[1],s[1]; next};"\
-" s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\
-" ' prfx=^$ac_symprfx"
- else
- lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode$symcode*\)[ ][ ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
- fi
- lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'"
-
- # Check to see that the pipe works correctly.
- pipe_works=no
-
- rm -f conftest*
- cat > conftest.$ac_ext <<_LT_EOF
-#ifdef __cplusplus
-extern "C" {
-#endif
-char nm_test_var;
-void nm_test_func(void);
-void nm_test_func(void){}
-#ifdef __cplusplus
-}
-#endif
-int main(){nm_test_var='a';nm_test_func();return(0);}
-_LT_EOF
-
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
- (eval $ac_compile) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; then
- # Now try to grab the symbols.
- nlist=conftest.nm
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5
- (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } && test -s "$nlist"; then
- # Try sorting and uniquifying the output.
- if sort "$nlist" | uniq > "$nlist"T; then
- mv -f "$nlist"T "$nlist"
- else
- rm -f "$nlist"T
- fi
-
- # Make sure that we snagged all the symbols we need.
- if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
- if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
- cat <<_LT_EOF > conftest.$ac_ext
-/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */
-#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
-/* DATA imports from DLLs on WIN32 can't be const, because runtime
- relocations are performed -- see ld's documentation on pseudo-relocs. */
-# define LT_DLSYM_CONST
-#elif defined __osf__
-/* This system does not cope well with relocations in const data. */
-# define LT_DLSYM_CONST
-#else
-# define LT_DLSYM_CONST const
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-_LT_EOF
- # Now generate the symbol file.
- eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
-
- cat <<_LT_EOF >> conftest.$ac_ext
-
-/* The mapping between symbol names and symbols. */
-LT_DLSYM_CONST struct {
- const char *name;
- void *address;
-}
-lt__PROGRAM__LTX_preloaded_symbols[] =
-{
- { "@PROGRAM@", (void *) 0 },
-_LT_EOF
- $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
- cat <<\_LT_EOF >> conftest.$ac_ext
- {0, (void *) 0}
-};
-
-/* This works around a problem in FreeBSD linker */
-#ifdef FREEBSD_WORKAROUND
-static const void *lt_preloaded_setup() {
- return lt__PROGRAM__LTX_preloaded_symbols;
-}
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-_LT_EOF
- # Now try linking the two files.
- mv conftest.$ac_objext conftstm.$ac_objext
- lt_globsym_save_LIBS=$LIBS
- lt_globsym_save_CFLAGS=$CFLAGS
- LIBS=conftstm.$ac_objext
- CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag"
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
- (eval $ac_link) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } && test -s conftest$ac_exeext; then
- pipe_works=yes
- fi
- LIBS=$lt_globsym_save_LIBS
- CFLAGS=$lt_globsym_save_CFLAGS
- else
- echo "cannot find nm_test_func in $nlist" >&5
- fi
- else
- echo "cannot find nm_test_var in $nlist" >&5
- fi
- else
- echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5
- fi
- else
- echo "$progname: failed program was:" >&5
- cat conftest.$ac_ext >&5
- fi
- rm -rf conftest* conftst*
-
- # Do not use the global_symbol_pipe unless it works.
- if test yes = "$pipe_works"; then
- break
- else
- lt_cv_sys_global_symbol_pipe=
- fi
-done
-
-fi
-
-if test -z "$lt_cv_sys_global_symbol_pipe"; then
- lt_cv_sys_global_symbol_to_cdecl=
-fi
-if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5
-$as_echo "failed" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
-$as_echo "ok" >&6; }
-fi
-
-# Response file support.
-if test "$lt_cv_nm_interface" = "MS dumpbin"; then
- nm_file_list_spec='@'
-elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then
- nm_file_list_spec='@'
-fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5
-$as_echo_n "checking for sysroot... " >&6; }
-
-# Check whether --with-sysroot was given.
-if test "${with_sysroot+set}" = set; then :
- withval=$with_sysroot;
-else
- with_sysroot=no
-fi
-
-
-lt_sysroot=
-case $with_sysroot in #(
- yes)
- if test yes = "$GCC"; then
- lt_sysroot=`$CC --print-sysroot 2>/dev/null`
- fi
- ;; #(
- /*)
- lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"`
- ;; #(
- no|'')
- ;; #(
- *)
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_sysroot" >&5
-$as_echo "$with_sysroot" >&6; }
- as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5
- ;;
-esac
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5
-$as_echo "${lt_sysroot:-no}" >&6; }
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a working dd" >&5
-$as_echo_n "checking for a working dd... " >&6; }
-if ${ac_cv_path_lt_DD+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- printf 0123456789abcdef0123456789abcdef >conftest.i
-cat conftest.i conftest.i >conftest2.i
-: ${lt_DD:=$DD}
-if test -z "$lt_DD"; then
- ac_path_lt_DD_found=false
- # Loop through the user's path and test for each of PROGNAME-LIST
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_prog in dd; do
- for ac_exec_ext in '' $ac_executable_extensions; do
- ac_path_lt_DD="$as_dir/$ac_prog$ac_exec_ext"
- as_fn_executable_p "$ac_path_lt_DD" || continue
-if "$ac_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
- cmp -s conftest.i conftest.out \
- && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=:
-fi
- $ac_path_lt_DD_found && break 3
- done
- done
- done
-IFS=$as_save_IFS
- if test -z "$ac_cv_path_lt_DD"; then
- :
- fi
-else
- ac_cv_path_lt_DD=$lt_DD
-fi
-
-rm -f conftest.i conftest2.i conftest.out
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_lt_DD" >&5
-$as_echo "$ac_cv_path_lt_DD" >&6; }
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to truncate binary pipes" >&5
-$as_echo_n "checking how to truncate binary pipes... " >&6; }
-if ${lt_cv_truncate_bin+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- printf 0123456789abcdef0123456789abcdef >conftest.i
-cat conftest.i conftest.i >conftest2.i
-lt_cv_truncate_bin=
-if "$ac_cv_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
- cmp -s conftest.i conftest.out \
- && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1"
-fi
-rm -f conftest.i conftest2.i conftest.out
-test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_truncate_bin" >&5
-$as_echo "$lt_cv_truncate_bin" >&6; }
-
-
-
-
-
-
-
-# Calculate cc_basename. Skip known compiler wrappers and cross-prefix.
-func_cc_basename ()
-{
- for cc_temp in $*""; do
- case $cc_temp in
- compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
- distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
- \-*) ;;
- *) break;;
- esac
- done
- func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
-}
-
-# Check whether --enable-libtool-lock was given.
-if test "${enable_libtool_lock+set}" = set; then :
- enableval=$enable_libtool_lock;
-fi
-
-test no = "$enable_libtool_lock" || enable_libtool_lock=yes
-
-# Some flags need to be propagated to the compiler or linker for good
-# libtool support.
-case $host in
-ia64-*-hpux*)
- # Find out what ABI is being produced by ac_compile, and set mode
- # options accordingly.
- echo 'int i;' > conftest.$ac_ext
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
- (eval $ac_compile) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; then
- case `/usr/bin/file conftest.$ac_objext` in
- *ELF-32*)
- HPUX_IA64_MODE=32
- ;;
- *ELF-64*)
- HPUX_IA64_MODE=64
- ;;
- esac
- fi
- rm -rf conftest*
- ;;
-*-*-irix6*)
- # Find out what ABI is being produced by ac_compile, and set linker
- # options accordingly.
- echo '#line '$LINENO' "configure"' > conftest.$ac_ext
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
- (eval $ac_compile) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; then
- if test yes = "$lt_cv_prog_gnu_ld"; then
- case `/usr/bin/file conftest.$ac_objext` in
- *32-bit*)
- LD="${LD-ld} -melf32bsmip"
- ;;
- *N32*)
- LD="${LD-ld} -melf32bmipn32"
- ;;
- *64-bit*)
- LD="${LD-ld} -melf64bmip"
- ;;
- esac
- else
- case `/usr/bin/file conftest.$ac_objext` in
- *32-bit*)
- LD="${LD-ld} -32"
- ;;
- *N32*)
- LD="${LD-ld} -n32"
- ;;
- *64-bit*)
- LD="${LD-ld} -64"
- ;;
- esac
- fi
- fi
- rm -rf conftest*
- ;;
-
-mips64*-*linux*)
- # Find out what ABI is being produced by ac_compile, and set linker
- # options accordingly.
- echo '#line '$LINENO' "configure"' > conftest.$ac_ext
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
- (eval $ac_compile) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; then
- emul=elf
- case `/usr/bin/file conftest.$ac_objext` in
- *32-bit*)
- emul="${emul}32"
- ;;
- *64-bit*)
- emul="${emul}64"
- ;;
- esac
- case `/usr/bin/file conftest.$ac_objext` in
- *MSB*)
- emul="${emul}btsmip"
- ;;
- *LSB*)
- emul="${emul}ltsmip"
- ;;
- esac
- case `/usr/bin/file conftest.$ac_objext` in
- *N32*)
- emul="${emul}n32"
- ;;
- esac
- LD="${LD-ld} -m $emul"
- fi
- rm -rf conftest*
- ;;
-
-x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
-s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
- # Find out what ABI is being produced by ac_compile, and set linker
- # options accordingly. Note that the listed cases only cover the
- # situations where additional linker options are needed (such as when
- # doing 32-bit compilation for a host where ld defaults to 64-bit, or
- # vice versa); the common cases where no linker options are needed do
- # not appear in the list.
- echo 'int i;' > conftest.$ac_ext
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
- (eval $ac_compile) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; then
- case `/usr/bin/file conftest.o` in
- *32-bit*)
- case $host in
- x86_64-*kfreebsd*-gnu)
- LD="${LD-ld} -m elf_i386_fbsd"
- ;;
- x86_64-*linux*)
- case `/usr/bin/file conftest.o` in
- *x86-64*)
- LD="${LD-ld} -m elf32_x86_64"
- ;;
- *)
- LD="${LD-ld} -m elf_i386"
- ;;
- esac
- ;;
- powerpc64le-*linux*)
- LD="${LD-ld} -m elf32lppclinux"
- ;;
- powerpc64-*linux*)
- LD="${LD-ld} -m elf32ppclinux"
- ;;
- s390x-*linux*)
- LD="${LD-ld} -m elf_s390"
- ;;
- sparc64-*linux*)
- LD="${LD-ld} -m elf32_sparc"
- ;;
- esac
- ;;
- *64-bit*)
- case $host in
- x86_64-*kfreebsd*-gnu)
- LD="${LD-ld} -m elf_x86_64_fbsd"
- ;;
- x86_64-*linux*)
- LD="${LD-ld} -m elf_x86_64"
- ;;
- powerpcle-*linux*)
- LD="${LD-ld} -m elf64lppc"
- ;;
- powerpc-*linux*)
- LD="${LD-ld} -m elf64ppc"
- ;;
- s390*-*linux*|s390*-*tpf*)
- LD="${LD-ld} -m elf64_s390"
- ;;
- sparc*-*linux*)
- LD="${LD-ld} -m elf64_sparc"
- ;;
- esac
- ;;
- esac
- fi
- rm -rf conftest*
- ;;
-
-*-*-sco3.2v5*)
- # On SCO OpenServer 5, we need -belf to get full-featured binaries.
- SAVE_CFLAGS=$CFLAGS
- CFLAGS="$CFLAGS -belf"
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5
-$as_echo_n "checking whether the C compiler needs -belf... " >&6; }
-if ${lt_cv_cc_needs_belf+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- lt_cv_cc_needs_belf=yes
-else
- lt_cv_cc_needs_belf=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
- ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5
-$as_echo "$lt_cv_cc_needs_belf" >&6; }
- if test yes != "$lt_cv_cc_needs_belf"; then
- # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
- CFLAGS=$SAVE_CFLAGS
- fi
- ;;
-*-*solaris*)
- # Find out what ABI is being produced by ac_compile, and set linker
- # options accordingly.
- echo 'int i;' > conftest.$ac_ext
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
- (eval $ac_compile) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; then
- case `/usr/bin/file conftest.o` in
- *64-bit*)
- case $lt_cv_prog_gnu_ld in
- yes*)
- case $host in
- i?86-*-solaris*|x86_64-*-solaris*)
- LD="${LD-ld} -m elf_x86_64"
- ;;
- sparc*-*-solaris*)
- LD="${LD-ld} -m elf64_sparc"
- ;;
- esac
- # GNU ld 2.21 introduced _sol2 emulations. Use them if available.
- if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
- LD=${LD-ld}_sol2
- fi
- ;;
- *)
- if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
- LD="${LD-ld} -64"
- fi
- ;;
- esac
- ;;
- esac
- fi
- rm -rf conftest*
- ;;
-esac
-
-need_locks=$enable_libtool_lock
-
-if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args.
-set dummy ${ac_tool_prefix}mt; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_MANIFEST_TOOL+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$MANIFEST_TOOL"; then
- ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL
-if test -n "$MANIFEST_TOOL"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5
-$as_echo "$MANIFEST_TOOL" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_MANIFEST_TOOL"; then
- ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL
- # Extract the first word of "mt", so it can be a program name with args.
-set dummy mt; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_MANIFEST_TOOL"; then
- ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_MANIFEST_TOOL="mt"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL
-if test -n "$ac_ct_MANIFEST_TOOL"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5
-$as_echo "$ac_ct_MANIFEST_TOOL" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_MANIFEST_TOOL" = x; then
- MANIFEST_TOOL=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL
- fi
-else
- MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL"
-fi
-
-test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5
-$as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; }
-if ${lt_cv_path_mainfest_tool+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_path_mainfest_tool=no
- echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5
- $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
- cat conftest.err >&5
- if $GREP 'Manifest Tool' conftest.out > /dev/null; then
- lt_cv_path_mainfest_tool=yes
- fi
- rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5
-$as_echo "$lt_cv_path_mainfest_tool" >&6; }
-if test yes != "$lt_cv_path_mainfest_tool"; then
- MANIFEST_TOOL=:
-fi
-
-
-
-
-
-
- case $host_os in
- rhapsody* | darwin*)
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args.
-set dummy ${ac_tool_prefix}dsymutil; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_DSYMUTIL+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$DSYMUTIL"; then
- ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-DSYMUTIL=$ac_cv_prog_DSYMUTIL
-if test -n "$DSYMUTIL"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5
-$as_echo "$DSYMUTIL" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_DSYMUTIL"; then
- ac_ct_DSYMUTIL=$DSYMUTIL
- # Extract the first word of "dsymutil", so it can be a program name with args.
-set dummy dsymutil; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_DSYMUTIL"; then
- ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL
-if test -n "$ac_ct_DSYMUTIL"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5
-$as_echo "$ac_ct_DSYMUTIL" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_DSYMUTIL" = x; then
- DSYMUTIL=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- DSYMUTIL=$ac_ct_DSYMUTIL
- fi
-else
- DSYMUTIL="$ac_cv_prog_DSYMUTIL"
-fi
-
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args.
-set dummy ${ac_tool_prefix}nmedit; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_NMEDIT+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$NMEDIT"; then
- ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-NMEDIT=$ac_cv_prog_NMEDIT
-if test -n "$NMEDIT"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5
-$as_echo "$NMEDIT" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_NMEDIT"; then
- ac_ct_NMEDIT=$NMEDIT
- # Extract the first word of "nmedit", so it can be a program name with args.
-set dummy nmedit; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_NMEDIT"; then
- ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_NMEDIT="nmedit"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT
-if test -n "$ac_ct_NMEDIT"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5
-$as_echo "$ac_ct_NMEDIT" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_NMEDIT" = x; then
- NMEDIT=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- NMEDIT=$ac_ct_NMEDIT
- fi
-else
- NMEDIT="$ac_cv_prog_NMEDIT"
-fi
-
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args.
-set dummy ${ac_tool_prefix}lipo; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_LIPO+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$LIPO"; then
- ac_cv_prog_LIPO="$LIPO" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-LIPO=$ac_cv_prog_LIPO
-if test -n "$LIPO"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5
-$as_echo "$LIPO" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_LIPO"; then
- ac_ct_LIPO=$LIPO
- # Extract the first word of "lipo", so it can be a program name with args.
-set dummy lipo; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_LIPO+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_LIPO"; then
- ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_LIPO="lipo"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO
-if test -n "$ac_ct_LIPO"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5
-$as_echo "$ac_ct_LIPO" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_LIPO" = x; then
- LIPO=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- LIPO=$ac_ct_LIPO
- fi
-else
- LIPO="$ac_cv_prog_LIPO"
-fi
-
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args.
-set dummy ${ac_tool_prefix}otool; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_OTOOL+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$OTOOL"; then
- ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-OTOOL=$ac_cv_prog_OTOOL
-if test -n "$OTOOL"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5
-$as_echo "$OTOOL" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_OTOOL"; then
- ac_ct_OTOOL=$OTOOL
- # Extract the first word of "otool", so it can be a program name with args.
-set dummy otool; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_OTOOL+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_OTOOL"; then
- ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_OTOOL="otool"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL
-if test -n "$ac_ct_OTOOL"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5
-$as_echo "$ac_ct_OTOOL" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_OTOOL" = x; then
- OTOOL=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- OTOOL=$ac_ct_OTOOL
- fi
-else
- OTOOL="$ac_cv_prog_OTOOL"
-fi
-
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args.
-set dummy ${ac_tool_prefix}otool64; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_OTOOL64+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$OTOOL64"; then
- ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-OTOOL64=$ac_cv_prog_OTOOL64
-if test -n "$OTOOL64"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5
-$as_echo "$OTOOL64" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_OTOOL64"; then
- ac_ct_OTOOL64=$OTOOL64
- # Extract the first word of "otool64", so it can be a program name with args.
-set dummy otool64; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_OTOOL64"; then
- ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_OTOOL64="otool64"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64
-if test -n "$ac_ct_OTOOL64"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5
-$as_echo "$ac_ct_OTOOL64" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_OTOOL64" = x; then
- OTOOL64=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- OTOOL64=$ac_ct_OTOOL64
- fi
-else
- OTOOL64="$ac_cv_prog_OTOOL64"
-fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5
-$as_echo_n "checking for -single_module linker flag... " >&6; }
-if ${lt_cv_apple_cc_single_mod+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_apple_cc_single_mod=no
- if test -z "$LT_MULTI_MODULE"; then
- # By default we will add the -single_module flag. You can override
- # by either setting the environment variable LT_MULTI_MODULE
- # non-empty at configure time, or by adding -multi_module to the
- # link flags.
- rm -rf libconftest.dylib*
- echo "int foo(void){return 1;}" > conftest.c
- echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
--dynamiclib -Wl,-single_module conftest.c" >&5
- $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
- -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
- _lt_result=$?
- # If there is a non-empty error log, and "single_module"
- # appears in it, assume the flag caused a linker warning
- if test -s conftest.err && $GREP single_module conftest.err; then
- cat conftest.err >&5
- # Otherwise, if the output was created with a 0 exit code from
- # the compiler, it worked.
- elif test -f libconftest.dylib && test 0 = "$_lt_result"; then
- lt_cv_apple_cc_single_mod=yes
- else
- cat conftest.err >&5
- fi
- rm -rf libconftest.dylib*
- rm -f conftest.*
- fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5
-$as_echo "$lt_cv_apple_cc_single_mod" >&6; }
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5
-$as_echo_n "checking for -exported_symbols_list linker flag... " >&6; }
-if ${lt_cv_ld_exported_symbols_list+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_ld_exported_symbols_list=no
- save_LDFLAGS=$LDFLAGS
- echo "_main" > conftest.sym
- LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- lt_cv_ld_exported_symbols_list=yes
-else
- lt_cv_ld_exported_symbols_list=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
- LDFLAGS=$save_LDFLAGS
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5
-$as_echo "$lt_cv_ld_exported_symbols_list" >&6; }
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5
-$as_echo_n "checking for -force_load linker flag... " >&6; }
-if ${lt_cv_ld_force_load+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_ld_force_load=no
- cat > conftest.c << _LT_EOF
-int forced_loaded() { return 2;}
-_LT_EOF
- echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5
- $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5
- echo "$AR cru libconftest.a conftest.o" >&5
- $AR cru libconftest.a conftest.o 2>&5
- echo "$RANLIB libconftest.a" >&5
- $RANLIB libconftest.a 2>&5
- cat > conftest.c << _LT_EOF
-int main() { return 0;}
-_LT_EOF
- echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5
- $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
- _lt_result=$?
- if test -s conftest.err && $GREP force_load conftest.err; then
- cat conftest.err >&5
- elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then
- lt_cv_ld_force_load=yes
- else
- cat conftest.err >&5
- fi
- rm -f conftest.err libconftest.a conftest conftest.c
- rm -rf conftest.dSYM
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
-$as_echo "$lt_cv_ld_force_load" >&6; }
- case $host_os in
- rhapsody* | darwin1.[012])
- _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;;
- darwin1.*)
- _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
- darwin*) # darwin 5.x on
- # if running on 10.5 or later, the deployment target defaults
- # to the OS version, if on x86, and 10.4, the deployment
- # target defaults to 10.4. Don't you love it?
- case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
- 10.0,*86*-darwin8*|10.0,*-darwin[91]*)
- _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
- 10.[012][,.]*)
- _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
- 10.*)
- _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
- esac
- ;;
- esac
- if test yes = "$lt_cv_apple_cc_single_mod"; then
- _lt_dar_single_mod='$single_module'
- fi
- if test yes = "$lt_cv_ld_exported_symbols_list"; then
- _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym'
- else
- _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib'
- fi
- if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then
- _lt_dsymutil='~$DSYMUTIL $lib || :'
- else
- _lt_dsymutil=
- fi
- ;;
- esac
-
-# func_munge_path_list VARIABLE PATH
-# -----------------------------------
-# VARIABLE is name of variable containing _space_ separated list of
-# directories to be munged by the contents of PATH, which is string
-# having a format:
-# "DIR[:DIR]:"
-# string "DIR[ DIR]" will be prepended to VARIABLE
-# ":DIR[:DIR]"
-# string "DIR[ DIR]" will be appended to VARIABLE
-# "DIRP[:DIRP]::[DIRA:]DIRA"
-# string "DIRP[ DIRP]" will be prepended to VARIABLE and string
-# "DIRA[ DIRA]" will be appended to VARIABLE
-# "DIR[:DIR]"
-# VARIABLE will be replaced by "DIR[ DIR]"
-func_munge_path_list ()
-{
- case x$2 in
- x)
- ;;
- *:)
- eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\"
- ;;
- x:*)
- eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\"
- ;;
- *::*)
- eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
- eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\"
- ;;
- *)
- eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\"
- ;;
- esac
-}
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
-$as_echo_n "checking for ANSI C header files... " >&6; }
-if ${ac_cv_header_stdc+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <float.h>
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
- ac_cv_header_stdc=yes
-else
- ac_cv_header_stdc=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-if test $ac_cv_header_stdc = yes; then
- # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-#include <string.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
- $EGREP "memchr" >/dev/null 2>&1; then :
-
-else
- ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
- # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-#include <stdlib.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
- $EGREP "free" >/dev/null 2>&1; then :
-
-else
- ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
- # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
- if test "$cross_compiling" = yes; then :
- :
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-#include <ctype.h>
-#include <stdlib.h>
-#if ((' ' & 0x0FF) == 0x020)
-# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
-# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
-#else
-# define ISLOWER(c) \
- (('a' <= (c) && (c) <= 'i') \
- || ('j' <= (c) && (c) <= 'r') \
- || ('s' <= (c) && (c) <= 'z'))
-# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
-#endif
-
-#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
-int
-main ()
-{
- int i;
- for (i = 0; i < 256; i++)
- if (XOR (islower (i), ISLOWER (i))
- || toupper (i) != TOUPPER (i))
- return 2;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-
-else
- ac_cv_header_stdc=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
- conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
-$as_echo "$ac_cv_header_stdc" >&6; }
-if test $ac_cv_header_stdc = yes; then
-
-$as_echo "#define STDC_HEADERS 1" >>confdefs.h
-
-fi
-
-# On IRIX 5.3, sys/types and inttypes.h are conflicting.
-for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
- inttypes.h stdint.h unistd.h
-do :
- as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
-"
-if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
- cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-for ac_header in dlfcn.h
-do :
- ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default
-"
-if test "x$ac_cv_header_dlfcn_h" = xyes; then :
- cat >>confdefs.h <<_ACEOF
-#define HAVE_DLFCN_H 1
-_ACEOF
-
-fi
-
-done
-
-
-
-
-
-# Set options
-enable_win32_dll=yes
-
-case $host in
-*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}as", so it can be a program name with args.
-set dummy ${ac_tool_prefix}as; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_AS+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$AS"; then
- ac_cv_prog_AS="$AS" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_AS="${ac_tool_prefix}as"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-AS=$ac_cv_prog_AS
-if test -n "$AS"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AS" >&5
-$as_echo "$AS" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_AS"; then
- ac_ct_AS=$AS
- # Extract the first word of "as", so it can be a program name with args.
-set dummy as; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_AS+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_AS"; then
- ac_cv_prog_ac_ct_AS="$ac_ct_AS" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_AS="as"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_AS=$ac_cv_prog_ac_ct_AS
-if test -n "$ac_ct_AS"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AS" >&5
-$as_echo "$ac_ct_AS" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_AS" = x; then
- AS="false"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- AS=$ac_ct_AS
- fi
-else
- AS="$ac_cv_prog_AS"
-fi
-
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args.
-set dummy ${ac_tool_prefix}dlltool; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_DLLTOOL+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$DLLTOOL"; then
- ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-DLLTOOL=$ac_cv_prog_DLLTOOL
-if test -n "$DLLTOOL"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
-$as_echo "$DLLTOOL" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_DLLTOOL"; then
- ac_ct_DLLTOOL=$DLLTOOL
- # Extract the first word of "dlltool", so it can be a program name with args.
-set dummy dlltool; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_DLLTOOL"; then
- ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_DLLTOOL="dlltool"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL
-if test -n "$ac_ct_DLLTOOL"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
-$as_echo "$ac_ct_DLLTOOL" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_DLLTOOL" = x; then
- DLLTOOL="false"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- DLLTOOL=$ac_ct_DLLTOOL
- fi
-else
- DLLTOOL="$ac_cv_prog_DLLTOOL"
-fi
-
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
-set dummy ${ac_tool_prefix}objdump; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_OBJDUMP+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$OBJDUMP"; then
- ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-OBJDUMP=$ac_cv_prog_OBJDUMP
-if test -n "$OBJDUMP"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
-$as_echo "$OBJDUMP" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_OBJDUMP"; then
- ac_ct_OBJDUMP=$OBJDUMP
- # Extract the first word of "objdump", so it can be a program name with args.
-set dummy objdump; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_OBJDUMP"; then
- ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_OBJDUMP="objdump"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
-if test -n "$ac_ct_OBJDUMP"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
-$as_echo "$ac_ct_OBJDUMP" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_OBJDUMP" = x; then
- OBJDUMP="false"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- OBJDUMP=$ac_ct_OBJDUMP
- fi
-else
- OBJDUMP="$ac_cv_prog_OBJDUMP"
-fi
-
- ;;
-esac
-
-test -z "$AS" && AS=as
-
-
-
-
-
-test -z "$DLLTOOL" && DLLTOOL=dlltool
-
-
-
-
-
-test -z "$OBJDUMP" && OBJDUMP=objdump
-
-
-
-
-
-
-
- enable_dlopen=no
-
-
-
- # Check whether --enable-shared was given.
-if test "${enable_shared+set}" = set; then :
- enableval=$enable_shared; p=${PACKAGE-default}
- case $enableval in
- yes) enable_shared=yes ;;
- no) enable_shared=no ;;
- *)
- enable_shared=no
- # Look at the argument we got. We use all the common list separators.
- lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
- for pkg in $enableval; do
- IFS=$lt_save_ifs
- if test "X$pkg" = "X$p"; then
- enable_shared=yes
- fi
- done
- IFS=$lt_save_ifs
- ;;
- esac
-else
- enable_shared=yes
-fi
-
-
-
-
-
-
-
-
-
- # Check whether --enable-static was given.
-if test "${enable_static+set}" = set; then :
- enableval=$enable_static; p=${PACKAGE-default}
- case $enableval in
- yes) enable_static=yes ;;
- no) enable_static=no ;;
- *)
- enable_static=no
- # Look at the argument we got. We use all the common list separators.
- lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
- for pkg in $enableval; do
- IFS=$lt_save_ifs
- if test "X$pkg" = "X$p"; then
- enable_static=yes
- fi
- done
- IFS=$lt_save_ifs
- ;;
- esac
-else
- enable_static=yes
-fi
-
-
-
-
-
-
-
-
-
-
-# Check whether --with-pic was given.
-if test "${with_pic+set}" = set; then :
- withval=$with_pic; lt_p=${PACKAGE-default}
- case $withval in
- yes|no) pic_mode=$withval ;;
- *)
- pic_mode=default
- # Look at the argument we got. We use all the common list separators.
- lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
- for lt_pkg in $withval; do
- IFS=$lt_save_ifs
- if test "X$lt_pkg" = "X$lt_p"; then
- pic_mode=yes
- fi
- done
- IFS=$lt_save_ifs
- ;;
- esac
-else
- pic_mode=default
-fi
-
-
-
-
-
-
-
-
- # Check whether --enable-fast-install was given.
-if test "${enable_fast_install+set}" = set; then :
- enableval=$enable_fast_install; p=${PACKAGE-default}
- case $enableval in
- yes) enable_fast_install=yes ;;
- no) enable_fast_install=no ;;
- *)
- enable_fast_install=no
- # Look at the argument we got. We use all the common list separators.
- lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
- for pkg in $enableval; do
- IFS=$lt_save_ifs
- if test "X$pkg" = "X$p"; then
- enable_fast_install=yes
- fi
- done
- IFS=$lt_save_ifs
- ;;
- esac
-else
- enable_fast_install=yes
-fi
-
-
-
-
-
-
-
-
- shared_archive_member_spec=
-case $host,$enable_shared in
-power*-*-aix[5-9]*,yes)
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking which variant of shared library versioning to provide" >&5
-$as_echo_n "checking which variant of shared library versioning to provide... " >&6; }
-
-# Check whether --with-aix-soname was given.
-if test "${with_aix_soname+set}" = set; then :
- withval=$with_aix_soname; case $withval in
- aix|svr4|both)
- ;;
- *)
- as_fn_error $? "Unknown argument to --with-aix-soname" "$LINENO" 5
- ;;
- esac
- lt_cv_with_aix_soname=$with_aix_soname
-else
- if ${lt_cv_with_aix_soname+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_with_aix_soname=aix
-fi
-
- with_aix_soname=$lt_cv_with_aix_soname
-fi
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_aix_soname" >&5
-$as_echo "$with_aix_soname" >&6; }
- if test aix != "$with_aix_soname"; then
- # For the AIX way of multilib, we name the shared archive member
- # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o',
- # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File.
- # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag,
- # the AIX toolchain works better with OBJECT_MODE set (default 32).
- if test 64 = "${OBJECT_MODE-32}"; then
- shared_archive_member_spec=shr_64
- else
- shared_archive_member_spec=shr
- fi
- fi
- ;;
-*)
- with_aix_soname=aix
- ;;
-esac
-
-
-
-
-
-
-
-
-
-
-# This can be used to rebuild libtool when needed
-LIBTOOL_DEPS=$ltmain
-
-# Always use our own libtool.
-LIBTOOL='$(SHELL) $(top_builddir)/libtool'
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-test -z "$LN_S" && LN_S="ln -s"
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-if test -n "${ZSH_VERSION+set}"; then
- setopt NO_GLOB_SUBST
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5
-$as_echo_n "checking for objdir... " >&6; }
-if ${lt_cv_objdir+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- rm -f .libs 2>/dev/null
-mkdir .libs 2>/dev/null
-if test -d .libs; then
- lt_cv_objdir=.libs
-else
- # MS-DOS does not allow filenames that begin with a dot.
- lt_cv_objdir=_libs
-fi
-rmdir .libs 2>/dev/null
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5
-$as_echo "$lt_cv_objdir" >&6; }
-objdir=$lt_cv_objdir
-
-
-
-
-
-cat >>confdefs.h <<_ACEOF
-#define LT_OBJDIR "$lt_cv_objdir/"
-_ACEOF
-
-
-
-
-case $host_os in
-aix3*)
- # AIX sometimes has problems with the GCC collect2 program. For some
- # reason, if we set the COLLECT_NAMES environment variable, the problems
- # vanish in a puff of smoke.
- if test set != "${COLLECT_NAMES+set}"; then
- COLLECT_NAMES=
- export COLLECT_NAMES
- fi
- ;;
-esac
-
-# Global variables:
-ofile=libtool
-can_build_shared=yes
-
-# All known linkers require a '.a' archive for static linking (except MSVC,
-# which needs '.lib').
-libext=a
-
-with_gnu_ld=$lt_cv_prog_gnu_ld
-
-old_CC=$CC
-old_CFLAGS=$CFLAGS
-
-# Set sane defaults for various variables
-test -z "$CC" && CC=cc
-test -z "$LTCC" && LTCC=$CC
-test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
-test -z "$LD" && LD=ld
-test -z "$ac_objext" && ac_objext=o
-
-func_cc_basename $compiler
-cc_basename=$func_cc_basename_result
-
-
-# Only perform the check for file, if the check method requires it
-test -z "$MAGIC_CMD" && MAGIC_CMD=file
-case $deplibs_check_method in
-file_magic*)
- if test "$file_magic_cmd" = '$MAGIC_CMD'; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5
-$as_echo_n "checking for ${ac_tool_prefix}file... " >&6; }
-if ${lt_cv_path_MAGIC_CMD+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- case $MAGIC_CMD in
-[\\/*] | ?:[\\/]*)
- lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
- ;;
-*)
- lt_save_MAGIC_CMD=$MAGIC_CMD
- lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
- ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
- for ac_dir in $ac_dummy; do
- IFS=$lt_save_ifs
- test -z "$ac_dir" && ac_dir=.
- if test -f "$ac_dir/${ac_tool_prefix}file"; then
- lt_cv_path_MAGIC_CMD=$ac_dir/"${ac_tool_prefix}file"
- if test -n "$file_magic_test_file"; then
- case $deplibs_check_method in
- "file_magic "*)
- file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
- MAGIC_CMD=$lt_cv_path_MAGIC_CMD
- if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
- $EGREP "$file_magic_regex" > /dev/null; then
- :
- else
- cat <<_LT_EOF 1>&2
-
-*** Warning: the command libtool uses to detect shared libraries,
-*** $file_magic_cmd, produces output that libtool cannot recognize.
-*** The result is that libtool may fail to recognize shared libraries
-*** as such. This will affect the creation of libtool libraries that
-*** depend on shared libraries, but programs linked with such libtool
-*** libraries will work regardless of this problem. Nevertheless, you
-*** may want to report the problem to your system manager and/or to
-*** bug-libtool@gnu.org
-
-_LT_EOF
- fi ;;
- esac
- fi
- break
- fi
- done
- IFS=$lt_save_ifs
- MAGIC_CMD=$lt_save_MAGIC_CMD
- ;;
-esac
-fi
-
-MAGIC_CMD=$lt_cv_path_MAGIC_CMD
-if test -n "$MAGIC_CMD"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
-$as_echo "$MAGIC_CMD" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-
-
-
-if test -z "$lt_cv_path_MAGIC_CMD"; then
- if test -n "$ac_tool_prefix"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5
-$as_echo_n "checking for file... " >&6; }
-if ${lt_cv_path_MAGIC_CMD+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- case $MAGIC_CMD in
-[\\/*] | ?:[\\/]*)
- lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
- ;;
-*)
- lt_save_MAGIC_CMD=$MAGIC_CMD
- lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
- ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
- for ac_dir in $ac_dummy; do
- IFS=$lt_save_ifs
- test -z "$ac_dir" && ac_dir=.
- if test -f "$ac_dir/file"; then
- lt_cv_path_MAGIC_CMD=$ac_dir/"file"
- if test -n "$file_magic_test_file"; then
- case $deplibs_check_method in
- "file_magic "*)
- file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
- MAGIC_CMD=$lt_cv_path_MAGIC_CMD
- if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
- $EGREP "$file_magic_regex" > /dev/null; then
- :
- else
- cat <<_LT_EOF 1>&2
-
-*** Warning: the command libtool uses to detect shared libraries,
-*** $file_magic_cmd, produces output that libtool cannot recognize.
-*** The result is that libtool may fail to recognize shared libraries
-*** as such. This will affect the creation of libtool libraries that
-*** depend on shared libraries, but programs linked with such libtool
-*** libraries will work regardless of this problem. Nevertheless, you
-*** may want to report the problem to your system manager and/or to
-*** bug-libtool@gnu.org
-
-_LT_EOF
- fi ;;
- esac
- fi
- break
- fi
- done
- IFS=$lt_save_ifs
- MAGIC_CMD=$lt_save_MAGIC_CMD
- ;;
-esac
-fi
-
-MAGIC_CMD=$lt_cv_path_MAGIC_CMD
-if test -n "$MAGIC_CMD"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
-$as_echo "$MAGIC_CMD" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
- else
- MAGIC_CMD=:
- fi
-fi
-
- fi
- ;;
-esac
-
-# Use C for the default configuration in the libtool script
-
-lt_save_CC=$CC
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
-# Source file extension for C test sources.
-ac_ext=c
-
-# Object file extension for compiled C test sources.
-objext=o
-objext=$objext
-
-# Code to be used in simple compile tests
-lt_simple_compile_test_code="int some_variable = 0;"
-
-# Code to be used in simple link tests
-lt_simple_link_test_code='int main(){return(0);}'
-
-
-
-
-
-
-
-# If no C compiler was specified, use CC.
-LTCC=${LTCC-"$CC"}
-
-# If no C compiler flags were specified, use CFLAGS.
-LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
-
-# Allow CC to be a program name with arguments.
-compiler=$CC
-
-# Save the default compiler, since it gets overwritten when the other
-# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
-compiler_DEFAULT=$CC
-
-# save warnings/boilerplate of simple test code
-ac_outfile=conftest.$ac_objext
-echo "$lt_simple_compile_test_code" >conftest.$ac_ext
-eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
-_lt_compiler_boilerplate=`cat conftest.err`
-$RM conftest*
-
-ac_outfile=conftest.$ac_objext
-echo "$lt_simple_link_test_code" >conftest.$ac_ext
-eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
-_lt_linker_boilerplate=`cat conftest.err`
-$RM -r conftest*
-
-
-## CAVEAT EMPTOR:
-## There is no encapsulation within the following macros, do not change
-## the running order or otherwise move them around unless you know exactly
-## what you are doing...
-if test -n "$compiler"; then
-
-lt_prog_compiler_no_builtin_flag=
-
-if test yes = "$GCC"; then
- case $cc_basename in
- nvcc*)
- lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;;
- *)
- lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;;
- esac
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
-$as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; }
-if ${lt_cv_prog_compiler_rtti_exceptions+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_prog_compiler_rtti_exceptions=no
- ac_outfile=conftest.$ac_objext
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
- lt_compiler_flag="-fno-rtti -fno-exceptions" ## exclude from sc_useless_quotes_in_assignment
- # Insert the option either (1) after the last *FLAGS variable, or
- # (2) before a word containing "conftest.", or (3) at the end.
- # Note that $ac_compile itself does not contain backslashes and begins
- # with a dollar sign (not a hyphen), so the echo should work correctly.
- # The option is referenced via a variable to avoid confusing sed.
- lt_compile=`echo "$ac_compile" | $SED \
- -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
- -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
- -e 's:$: $lt_compiler_flag:'`
- (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
- (eval "$lt_compile" 2>conftest.err)
- ac_status=$?
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- if (exit $ac_status) && test -s "$ac_outfile"; then
- # The compiler can only warn and ignore the option if not recognized
- # So say no if there are warnings other than the usual output.
- $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
- $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
- if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
- lt_cv_prog_compiler_rtti_exceptions=yes
- fi
- fi
- $RM conftest*
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
-$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; }
-
-if test yes = "$lt_cv_prog_compiler_rtti_exceptions"; then
- lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions"
-else
- :
-fi
-
-fi
-
-
-
-
-
-
- lt_prog_compiler_wl=
-lt_prog_compiler_pic=
-lt_prog_compiler_static=
-
-
- if test yes = "$GCC"; then
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_static='-static'
-
- case $host_os in
- aix*)
- # All AIX code is PIC.
- if test ia64 = "$host_cpu"; then
- # AIX 5 now supports IA64 processor
- lt_prog_compiler_static='-Bstatic'
- fi
- lt_prog_compiler_pic='-fPIC'
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- lt_prog_compiler_pic='-fPIC'
- ;;
- m68k)
- # FIXME: we need at least 68020 code to build shared libraries, but
- # adding the '-m68020' flag to GCC prevents building anything better,
- # like '-m68040'.
- lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4'
- ;;
- esac
- ;;
-
- beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
- # PIC is the default for these OSes.
- ;;
-
- mingw* | cygwin* | pw32* | os2* | cegcc*)
- # This hack is so that the source file can tell whether it is being
- # built for inclusion in a dll (and should export symbols for example).
- # Although the cygwin gcc ignores -fPIC, still need this for old-style
- # (--disable-auto-import) libraries
- lt_prog_compiler_pic='-DDLL_EXPORT'
- case $host_os in
- os2*)
- lt_prog_compiler_static='$wl-static'
- ;;
- esac
- ;;
-
- darwin* | rhapsody*)
- # PIC is the default on this platform
- # Common symbols not allowed in MH_DYLIB files
- lt_prog_compiler_pic='-fno-common'
- ;;
-
- haiku*)
- # PIC is the default for Haiku.
- # The "-static" flag exists, but is broken.
- lt_prog_compiler_static=
- ;;
-
- hpux*)
- # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
- # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag
- # sets the default TLS model and affects inlining.
- case $host_cpu in
- hppa*64*)
- # +Z the default
- ;;
- *)
- lt_prog_compiler_pic='-fPIC'
- ;;
- esac
- ;;
-
- interix[3-9]*)
- # Interix 3.x gcc -fpic/-fPIC options generate broken code.
- # Instead, we relocate shared libraries at runtime.
- ;;
-
- msdosdjgpp*)
- # Just because we use GCC doesn't mean we suddenly get shared libraries
- # on systems that don't support them.
- lt_prog_compiler_can_build_shared=no
- enable_shared=no
- ;;
-
- *nto* | *qnx*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- lt_prog_compiler_pic='-fPIC -shared'
- ;;
-
- sysv4*MP*)
- if test -d /usr/nec; then
- lt_prog_compiler_pic=-Kconform_pic
- fi
- ;;
-
- *)
- lt_prog_compiler_pic='-fPIC'
- ;;
- esac
-
- case $cc_basename in
- nvcc*) # Cuda Compiler Driver 2.2
- lt_prog_compiler_wl='-Xlinker '
- if test -n "$lt_prog_compiler_pic"; then
- lt_prog_compiler_pic="-Xcompiler $lt_prog_compiler_pic"
- fi
- ;;
- esac
- else
- # PORTME Check for flag to pass linker flags through the system compiler.
- case $host_os in
- aix*)
- lt_prog_compiler_wl='-Wl,'
- if test ia64 = "$host_cpu"; then
- # AIX 5 now supports IA64 processor
- lt_prog_compiler_static='-Bstatic'
- else
- lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp'
- fi
- ;;
-
- darwin* | rhapsody*)
- # PIC is the default on this platform
- # Common symbols not allowed in MH_DYLIB files
- lt_prog_compiler_pic='-fno-common'
- case $cc_basename in
- nagfor*)
- # NAG Fortran compiler
- lt_prog_compiler_wl='-Wl,-Wl,,'
- lt_prog_compiler_pic='-PIC'
- lt_prog_compiler_static='-Bstatic'
- ;;
- esac
- ;;
-
- mingw* | cygwin* | pw32* | os2* | cegcc*)
- # This hack is so that the source file can tell whether it is being
- # built for inclusion in a dll (and should export symbols for example).
- lt_prog_compiler_pic='-DDLL_EXPORT'
- case $host_os in
- os2*)
- lt_prog_compiler_static='$wl-static'
- ;;
- esac
- ;;
-
- hpux9* | hpux10* | hpux11*)
- lt_prog_compiler_wl='-Wl,'
- # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
- # not for PA HP-UX.
- case $host_cpu in
- hppa*64*|ia64*)
- # +Z the default
- ;;
- *)
- lt_prog_compiler_pic='+Z'
- ;;
- esac
- # Is there a better lt_prog_compiler_static that works with the bundled CC?
- lt_prog_compiler_static='$wl-a ${wl}archive'
- ;;
-
- irix5* | irix6* | nonstopux*)
- lt_prog_compiler_wl='-Wl,'
- # PIC (with -KPIC) is the default.
- lt_prog_compiler_static='-non_shared'
- ;;
-
- linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
- case $cc_basename in
- # old Intel for x86_64, which still supported -KPIC.
- ecc*)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='-KPIC'
- lt_prog_compiler_static='-static'
- ;;
- # icc used to be incompatible with GCC.
- # ICC 10 doesn't accept -KPIC any more.
- icc* | ifort*)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='-fPIC'
- lt_prog_compiler_static='-static'
- ;;
- # Lahey Fortran 8.1.
- lf95*)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='--shared'
- lt_prog_compiler_static='--static'
- ;;
- nagfor*)
- # NAG Fortran compiler
- lt_prog_compiler_wl='-Wl,-Wl,,'
- lt_prog_compiler_pic='-PIC'
- lt_prog_compiler_static='-Bstatic'
- ;;
- tcc*)
- # Fabrice Bellard et al's Tiny C Compiler
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='-fPIC'
- lt_prog_compiler_static='-static'
- ;;
- pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
- # Portland Group compilers (*not* the Pentium gcc compiler,
- # which looks to be a dead project)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='-fpic'
- lt_prog_compiler_static='-Bstatic'
- ;;
- ccc*)
- lt_prog_compiler_wl='-Wl,'
- # All Alpha code is PIC.
- lt_prog_compiler_static='-non_shared'
- ;;
- xl* | bgxl* | bgf* | mpixl*)
- # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='-qpic'
- lt_prog_compiler_static='-qstaticlink'
- ;;
- *)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [1-7].* | *Sun*Fortran*\ 8.[0-3]*)
- # Sun Fortran 8.3 passes all unrecognized flags to the linker
- lt_prog_compiler_pic='-KPIC'
- lt_prog_compiler_static='-Bstatic'
- lt_prog_compiler_wl=''
- ;;
- *Sun\ F* | *Sun*Fortran*)
- lt_prog_compiler_pic='-KPIC'
- lt_prog_compiler_static='-Bstatic'
- lt_prog_compiler_wl='-Qoption ld '
- ;;
- *Sun\ C*)
- # Sun C 5.9
- lt_prog_compiler_pic='-KPIC'
- lt_prog_compiler_static='-Bstatic'
- lt_prog_compiler_wl='-Wl,'
- ;;
- *Intel*\ [CF]*Compiler*)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='-fPIC'
- lt_prog_compiler_static='-static'
- ;;
- *Portland\ Group*)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='-fpic'
- lt_prog_compiler_static='-Bstatic'
- ;;
- esac
- ;;
- esac
- ;;
-
- newsos6)
- lt_prog_compiler_pic='-KPIC'
- lt_prog_compiler_static='-Bstatic'
- ;;
-
- *nto* | *qnx*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- lt_prog_compiler_pic='-fPIC -shared'
- ;;
-
- osf3* | osf4* | osf5*)
- lt_prog_compiler_wl='-Wl,'
- # All OSF/1 code is PIC.
- lt_prog_compiler_static='-non_shared'
- ;;
-
- rdos*)
- lt_prog_compiler_static='-non_shared'
- ;;
-
- solaris*)
- lt_prog_compiler_pic='-KPIC'
- lt_prog_compiler_static='-Bstatic'
- case $cc_basename in
- f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
- lt_prog_compiler_wl='-Qoption ld ';;
- *)
- lt_prog_compiler_wl='-Wl,';;
- esac
- ;;
-
- sunos4*)
- lt_prog_compiler_wl='-Qoption ld '
- lt_prog_compiler_pic='-PIC'
- lt_prog_compiler_static='-Bstatic'
- ;;
-
- sysv4 | sysv4.2uw2* | sysv4.3*)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='-KPIC'
- lt_prog_compiler_static='-Bstatic'
- ;;
-
- sysv4*MP*)
- if test -d /usr/nec; then
- lt_prog_compiler_pic='-Kconform_pic'
- lt_prog_compiler_static='-Bstatic'
- fi
- ;;
-
- sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='-KPIC'
- lt_prog_compiler_static='-Bstatic'
- ;;
-
- unicos*)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_can_build_shared=no
- ;;
-
- uts4*)
- lt_prog_compiler_pic='-pic'
- lt_prog_compiler_static='-Bstatic'
- ;;
-
- *)
- lt_prog_compiler_can_build_shared=no
- ;;
- esac
- fi
-
-case $host_os in
- # For platforms that do not support PIC, -DPIC is meaningless:
- *djgpp*)
- lt_prog_compiler_pic=
- ;;
- *)
- lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC"
- ;;
-esac
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
-$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
-if ${lt_cv_prog_compiler_pic+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_prog_compiler_pic=$lt_prog_compiler_pic
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic" >&5
-$as_echo "$lt_cv_prog_compiler_pic" >&6; }
-lt_prog_compiler_pic=$lt_cv_prog_compiler_pic
-
-#
-# Check to make sure the PIC flag actually works.
-#
-if test -n "$lt_prog_compiler_pic"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5
-$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; }
-if ${lt_cv_prog_compiler_pic_works+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_prog_compiler_pic_works=no
- ac_outfile=conftest.$ac_objext
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
- lt_compiler_flag="$lt_prog_compiler_pic -DPIC" ## exclude from sc_useless_quotes_in_assignment
- # Insert the option either (1) after the last *FLAGS variable, or
- # (2) before a word containing "conftest.", or (3) at the end.
- # Note that $ac_compile itself does not contain backslashes and begins
- # with a dollar sign (not a hyphen), so the echo should work correctly.
- # The option is referenced via a variable to avoid confusing sed.
- lt_compile=`echo "$ac_compile" | $SED \
- -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
- -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
- -e 's:$: $lt_compiler_flag:'`
- (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
- (eval "$lt_compile" 2>conftest.err)
- ac_status=$?
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- if (exit $ac_status) && test -s "$ac_outfile"; then
- # The compiler can only warn and ignore the option if not recognized
- # So say no if there are warnings other than the usual output.
- $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
- $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
- if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
- lt_cv_prog_compiler_pic_works=yes
- fi
- fi
- $RM conftest*
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5
-$as_echo "$lt_cv_prog_compiler_pic_works" >&6; }
-
-if test yes = "$lt_cv_prog_compiler_pic_works"; then
- case $lt_prog_compiler_pic in
- "" | " "*) ;;
- *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;;
- esac
-else
- lt_prog_compiler_pic=
- lt_prog_compiler_can_build_shared=no
-fi
-
-fi
-
-
-
-
-
-
-
-
-
-
-
-#
-# Check to make sure the static flag actually works.
-#
-wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\"
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
-$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
-if ${lt_cv_prog_compiler_static_works+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_prog_compiler_static_works=no
- save_LDFLAGS=$LDFLAGS
- LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
- echo "$lt_simple_link_test_code" > conftest.$ac_ext
- if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
- # The linker can only warn and ignore the option if not recognized
- # So say no if there are warnings
- if test -s conftest.err; then
- # Append any errors to the config.log.
- cat conftest.err 1>&5
- $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
- $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
- if diff conftest.exp conftest.er2 >/dev/null; then
- lt_cv_prog_compiler_static_works=yes
- fi
- else
- lt_cv_prog_compiler_static_works=yes
- fi
- fi
- $RM -r conftest*
- LDFLAGS=$save_LDFLAGS
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5
-$as_echo "$lt_cv_prog_compiler_static_works" >&6; }
-
-if test yes = "$lt_cv_prog_compiler_static_works"; then
- :
-else
- lt_prog_compiler_static=
-fi
-
-
-
-
-
-
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
-$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
-if ${lt_cv_prog_compiler_c_o+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_prog_compiler_c_o=no
- $RM -r conftest 2>/dev/null
- mkdir conftest
- cd conftest
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-
- lt_compiler_flag="-o out/conftest2.$ac_objext"
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- # Note that $ac_compile itself does not contain backslashes and begins
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- lt_compile=`echo "$ac_compile" | $SED \
- -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
- -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
- -e 's:$: $lt_compiler_flag:'`
- (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
- (eval "$lt_compile" 2>out/conftest.err)
- ac_status=$?
- cat out/conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- if (exit $ac_status) && test -s out/conftest2.$ac_objext
- then
- # The compiler can only warn and ignore the option if not recognized
- # So say no if there are warnings
- $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
- $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
- if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
- lt_cv_prog_compiler_c_o=yes
- fi
- fi
- chmod u+w . 2>&5
- $RM conftest*
- # SGI C++ compiler will create directory out/ii_files/ for
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- test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
- $RM out/* && rmdir out
- cd ..
- $RM -r conftest
- $RM conftest*
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
-$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
-
-
-
-
-
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
-$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
-if ${lt_cv_prog_compiler_c_o+:} false; then :
- $as_echo_n "(cached) " >&6
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- lt_cv_prog_compiler_c_o=no
- $RM -r conftest 2>/dev/null
- mkdir conftest
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- lt_compiler_flag="-o out/conftest2.$ac_objext"
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- -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
- -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
- -e 's:$: $lt_compiler_flag:'`
- (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
- (eval "$lt_compile" 2>out/conftest.err)
- ac_status=$?
- cat out/conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- if (exit $ac_status) && test -s out/conftest2.$ac_objext
- then
- # The compiler can only warn and ignore the option if not recognized
- # So say no if there are warnings
- $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
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- if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
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- chmod u+w . 2>&5
- $RM conftest*
- # SGI C++ compiler will create directory out/ii_files/ for
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- $RM out/* && rmdir out
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- $RM -r conftest
- $RM conftest*
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
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-
-
-
-
-hard_links=nottested
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-$as_echo_n "checking if we can lock with hard links... " >&6; }
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- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
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-$as_echo "$as_me: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&2;}
- need_locks=warn
- fi
-else
- need_locks=no
-fi
-
-
-
-
-
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
-$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
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- runpath_var=
- allow_undefined_flag=
- always_export_symbols=no
- archive_cmds=
- archive_expsym_cmds=
- compiler_needs_object=no
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- export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
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- hardcode_minus_L=no
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- thread_safe_flag_spec=
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- # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
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- # FIXME: the MSVC++ port hasn't been tested in a loooong time
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- # we just hope/assume this is gcc and not c89 (= MSVC++)
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- ;;
- openbsd* | bitrig*)
- with_gnu_ld=no
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- esac
-
- ld_shlibs=yes
-
- # On some targets, GNU ld is compatible enough with the native linker
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- aix*)
- # The AIX port of GNU ld has always aspired to compatibility
- # with the native linker. However, as the warning in the GNU ld
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- *\ \(GNU\ Binutils\)\ [3-9]*) ;;
- *)
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- *)
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- cat <<_LT_EOF 1>&2
-
-*** Warning: the GNU linker, at least up to release 2.19, is reported
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-*** Therefore, libtool is disabling shared libraries support. If you
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-_LT_EOF
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- amigaos*)
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- # see comment about AmigaOS4 .so support
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- archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
- hardcode_libdir_flag_spec='-L$libdir'
- hardcode_minus_L=yes
- ;;
- esac
- ;;
-
- beos*)
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- allow_undefined_flag=unsupported
- # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
- # support --undefined. This deserves some investigation. FIXME
- archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- else
- ld_shlibs=no
- fi
- ;;
-
- cygwin* | mingw* | pw32* | cegcc*)
- # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless,
- # as there is no search path for DLLs.
- hardcode_libdir_flag_spec='-L$libdir'
- export_dynamic_flag_spec='$wl--export-all-symbols'
- allow_undefined_flag=unsupported
- always_export_symbols=no
- enable_shared_with_static_runtimes=yes
- export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols'
- exclude_expsyms='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'
-
- if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- # If the export-symbols file already is a .def file, use it as
- # is; otherwise, prepend EXPORTS...
- archive_expsym_cmds='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then
- cp $export_symbols $output_objdir/$soname.def;
- else
- echo EXPORTS > $output_objdir/$soname.def;
- cat $export_symbols >> $output_objdir/$soname.def;
- fi~
- $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- else
- ld_shlibs=no
- fi
- ;;
-
- haiku*)
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- link_all_deplibs=yes
- ;;
-
- os2*)
- hardcode_libdir_flag_spec='-L$libdir'
- hardcode_minus_L=yes
- allow_undefined_flag=unsupported
- shrext_cmds=.dll
- archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
- $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
- $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
- $ECHO EXPORTS >> $output_objdir/$libname.def~
- emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
- $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
- emximp -o $lib $output_objdir/$libname.def'
- archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
- $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
- $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
- $ECHO EXPORTS >> $output_objdir/$libname.def~
- prefix_cmds="$SED"~
- if test EXPORTS = "`$SED 1q $export_symbols`"; then
- prefix_cmds="$prefix_cmds -e 1d";
- fi~
- prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
- cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
- $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
- emximp -o $lib $output_objdir/$libname.def'
- old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
- enable_shared_with_static_runtimes=yes
- ;;
-
- interix[3-9]*)
- hardcode_direct=no
- hardcode_shlibpath_var=no
- hardcode_libdir_flag_spec='$wl-rpath,$libdir'
- export_dynamic_flag_spec='$wl-E'
- # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
- # Instead, shared libraries are loaded at an image base (0x10000000 by
- # default) and relocated if they conflict, which is a slow very memory
- # consuming and fragmenting process. To avoid this, we pick a random,
- # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
- # time. Moving up from 0x10000000 also allows more sbrk(2) space.
- archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- archive_expsym_cmds='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- ;;
-
- gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
- tmp_diet=no
- if test linux-dietlibc = "$host_os"; then
- case $cc_basename in
- diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn)
- esac
- fi
- if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
- && test no = "$tmp_diet"
- then
- tmp_addflag=' $pic_flag'
- tmp_sharedflag='-shared'
- case $cc_basename,$host_cpu in
- pgcc*) # Portland Group C compiler
- whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
- tmp_addflag=' $pic_flag'
- ;;
- pgf77* | pgf90* | pgf95* | pgfortran*)
- # Portland Group f77 and f90 compilers
- whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
- tmp_addflag=' $pic_flag -Mnomain' ;;
- ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64
- tmp_addflag=' -i_dynamic' ;;
- efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64
- tmp_addflag=' -i_dynamic -nofor_main' ;;
- ifc* | ifort*) # Intel Fortran compiler
- tmp_addflag=' -nofor_main' ;;
- lf95*) # Lahey Fortran 8.1
- whole_archive_flag_spec=
- tmp_sharedflag='--shared' ;;
- nagfor*) # NAGFOR 5.3
- tmp_sharedflag='-Wl,-shared' ;;
- xl[cC]* | bgxl[cC]* | mpixl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below)
- tmp_sharedflag='-qmkshrobj'
- tmp_addflag= ;;
- nvcc*) # Cuda Compiler Driver 2.2
- whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
- compiler_needs_object=yes
- ;;
- esac
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*) # Sun C 5.9
- whole_archive_flag_spec='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
- compiler_needs_object=yes
- tmp_sharedflag='-G' ;;
- *Sun\ F*) # Sun Fortran 8.3
- tmp_sharedflag='-G' ;;
- esac
- archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
-
- if test yes = "$supports_anon_versioning"; then
- archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
- fi
-
- case $cc_basename in
- tcc*)
- export_dynamic_flag_spec='-rdynamic'
- ;;
- xlf* | bgf* | bgxlf* | mpixlf*)
- # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
- whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive'
- hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
- archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
- if test yes = "$supports_anon_versioning"; then
- archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
- fi
- ;;
- esac
- else
- ld_shlibs=no
- fi
- ;;
-
- netbsd*)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
- wlarc=
- else
- archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
- fi
- ;;
-
- solaris*)
- if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
- ld_shlibs=no
- cat <<_LT_EOF 1>&2
-
-*** Warning: The releases 2.8.* of the GNU linker cannot reliably
-*** create shared libraries on Solaris systems. Therefore, libtool
-*** is disabling shared libraries support. We urge you to upgrade GNU
-*** binutils to release 2.9.1 or newer. Another option is to modify
-*** your PATH or compiler configuration so that the native linker is
-*** used, and then restart.
-
-_LT_EOF
- elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
- else
- ld_shlibs=no
- fi
- ;;
-
- sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
- case `$LD -v 2>&1` in
- *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
- ld_shlibs=no
- cat <<_LT_EOF 1>&2
-
-*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot
-*** reliably create shared libraries on SCO systems. Therefore, libtool
-*** is disabling shared libraries support. We urge you to upgrade GNU
-*** binutils to release 2.16.91.0.3 or newer. Another option is to modify
-*** your PATH or compiler configuration so that the native linker is
-*** used, and then restart.
-
-_LT_EOF
- ;;
- *)
- # For security reasons, it is highly recommended that you always
- # use absolute paths for naming shared libraries, and exclude the
- # DT_RUNPATH tag from executables and libraries. But doing so
- # requires that you compile everything twice, which is a pain.
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
- else
- ld_shlibs=no
- fi
- ;;
- esac
- ;;
-
- sunos4*)
- archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
- wlarc=
- hardcode_direct=yes
- hardcode_shlibpath_var=no
- ;;
-
- *)
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
- else
- ld_shlibs=no
- fi
- ;;
- esac
-
- if test no = "$ld_shlibs"; then
- runpath_var=
- hardcode_libdir_flag_spec=
- export_dynamic_flag_spec=
- whole_archive_flag_spec=
- fi
- else
- # PORTME fill in a description of your system's linker (not GNU ld)
- case $host_os in
- aix3*)
- allow_undefined_flag=unsupported
- always_export_symbols=yes
- archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
- # Note: this linker hardcodes the directories in LIBPATH if there
- # are no directories specified by -L.
- hardcode_minus_L=yes
- if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then
- # Neither direct hardcoding nor static linking is supported with a
- # broken collect2.
- hardcode_direct=unsupported
- fi
- ;;
-
- aix[4-9]*)
- if test ia64 = "$host_cpu"; then
- # On IA64, the linker does run time linking by default, so we don't
- # have to do anything special.
- aix_use_runtimelinking=no
- exp_sym_flag='-Bexport'
- no_entry_flag=
- else
- # If we're using GNU nm, then we don't want the "-C" option.
- # -C means demangle to GNU nm, but means don't demangle to AIX nm.
- # Without the "-l" option, or with the "-B" option, AIX nm treats
- # weak defined symbols like other global defined symbols, whereas
- # GNU nm marks them as "W".
- # While the 'weak' keyword is ignored in the Export File, we need
- # it in the Import File for the 'aix-soname' feature, so we have
- # to replace the "-B" option with "-P" for AIX nm.
- if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
- export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
- else
- export_symbols_cmds='`func_echo_all $NM | $SED -e '\''s/B\([^B]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && (substr(\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
- fi
- aix_use_runtimelinking=no
-
- # Test if we are trying to use run time linking or normal
- # AIX style linking. If -brtl is somewhere in LDFLAGS, we
- # have runtime linking enabled, and use it for executables.
- # For shared libraries, we enable/disable runtime linking
- # depending on the kind of the shared library created -
- # when "with_aix_soname,aix_use_runtimelinking" is:
- # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables
- # "aix,yes" lib.so shared, rtl:yes, for executables
- # lib.a static archive
- # "both,no" lib.so.V(shr.o) shared, rtl:yes
- # lib.a(lib.so.V) shared, rtl:no, for executables
- # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
- # lib.a(lib.so.V) shared, rtl:no
- # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables
- # lib.a static archive
- case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
- for ld_flag in $LDFLAGS; do
- if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then
- aix_use_runtimelinking=yes
- break
- fi
- done
- if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
- # With aix-soname=svr4, we create the lib.so.V shared archives only,
- # so we don't have lib.a shared libs to link our executables.
- # We have to force runtime linking in this case.
- aix_use_runtimelinking=yes
- LDFLAGS="$LDFLAGS -Wl,-brtl"
- fi
- ;;
- esac
-
- exp_sym_flag='-bexport'
- no_entry_flag='-bnoentry'
- fi
-
- # When large executables or shared objects are built, AIX ld can
- # have problems creating the table of contents. If linking a library
- # or program results in "error TOC overflow" add -mminimal-toc to
- # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
- # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
-
- archive_cmds=''
- hardcode_direct=yes
- hardcode_direct_absolute=yes
- hardcode_libdir_separator=':'
- link_all_deplibs=yes
- file_list_spec='$wl-f,'
- case $with_aix_soname,$aix_use_runtimelinking in
- aix,*) ;; # traditional, no import file
- svr4,* | *,yes) # use import file
- # The Import File defines what to hardcode.
- hardcode_direct=no
- hardcode_direct_absolute=no
- ;;
- esac
-
- if test yes = "$GCC"; then
- case $host_os in aix4.[012]|aix4.[012].*)
- # We only want to do this on AIX 4.2 and lower, the check
- # below for broken collect2 doesn't work under 4.3+
- collect2name=`$CC -print-prog-name=collect2`
- if test -f "$collect2name" &&
- strings "$collect2name" | $GREP resolve_lib_name >/dev/null
- then
- # We have reworked collect2
- :
- else
- # We have old collect2
- hardcode_direct=unsupported
- # It fails to find uninstalled libraries when the uninstalled
- # path is not listed in the libpath. Setting hardcode_minus_L
- # to unsupported forces relinking
- hardcode_minus_L=yes
- hardcode_libdir_flag_spec='-L$libdir'
- hardcode_libdir_separator=
- fi
- ;;
- esac
- shared_flag='-shared'
- if test yes = "$aix_use_runtimelinking"; then
- shared_flag="$shared_flag "'$wl-G'
- fi
- # Need to ensure runtime linking is disabled for the traditional
- # shared library, or the linker may eventually find shared libraries
- # /with/ Import File - we do not want to mix them.
- shared_flag_aix='-shared'
- shared_flag_svr4='-shared $wl-G'
- else
- # not using gcc
- if test ia64 = "$host_cpu"; then
- # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
- # chokes on -Wl,-G. The following line is correct:
- shared_flag='-G'
- else
- if test yes = "$aix_use_runtimelinking"; then
- shared_flag='$wl-G'
- else
- shared_flag='$wl-bM:SRE'
- fi
- shared_flag_aix='$wl-bM:SRE'
- shared_flag_svr4='$wl-G'
- fi
- fi
-
- export_dynamic_flag_spec='$wl-bexpall'
- # It seems that -bexpall does not export symbols beginning with
- # underscore (_), so it is better to generate a list of symbols to export.
- always_export_symbols=yes
- if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
- # Warning - without using the other runtime loading flags (-brtl),
- # -berok will link without error, but may produce a broken library.
- allow_undefined_flag='-berok'
- # Determine the default libpath from the value encoded in an
- # empty executable.
- if test set = "${lt_cv_aix_libpath+set}"; then
- aix_libpath=$lt_cv_aix_libpath
-else
- if ${lt_cv_aix_libpath_+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
- lt_aix_libpath_sed='
- /Import File Strings/,/^$/ {
- /^0/ {
- s/^0 *\([^ ]*\) *$/\1/
- p
- }
- }'
- lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
- # Check for a 64-bit object if we didn't find anything.
- if test -z "$lt_cv_aix_libpath_"; then
- lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
- fi
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
- if test -z "$lt_cv_aix_libpath_"; then
- lt_cv_aix_libpath_=/usr/lib:/lib
- fi
-
-fi
-
- aix_libpath=$lt_cv_aix_libpath_
-fi
-
- hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath"
- archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
- else
- if test ia64 = "$host_cpu"; then
- hardcode_libdir_flag_spec='$wl-R $libdir:/usr/lib:/lib'
- allow_undefined_flag="-z nodefs"
- archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
- else
- # Determine the default libpath from the value encoded in an
- # empty executable.
- if test set = "${lt_cv_aix_libpath+set}"; then
- aix_libpath=$lt_cv_aix_libpath
-else
- if ${lt_cv_aix_libpath_+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
- lt_aix_libpath_sed='
- /Import File Strings/,/^$/ {
- /^0/ {
- s/^0 *\([^ ]*\) *$/\1/
- p
- }
- }'
- lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
- # Check for a 64-bit object if we didn't find anything.
- if test -z "$lt_cv_aix_libpath_"; then
- lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
- fi
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
- if test -z "$lt_cv_aix_libpath_"; then
- lt_cv_aix_libpath_=/usr/lib:/lib
- fi
-
-fi
-
- aix_libpath=$lt_cv_aix_libpath_
-fi
-
- hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath"
- # Warning - without using the other run time loading flags,
- # -berok will link without error, but may produce a broken library.
- no_undefined_flag=' $wl-bernotok'
- allow_undefined_flag=' $wl-berok'
- if test yes = "$with_gnu_ld"; then
- # We only use this code for GNU lds that support --whole-archive.
- whole_archive_flag_spec='$wl--whole-archive$convenience $wl--no-whole-archive'
- else
- # Exported symbols can be pulled into shared objects from archives
- whole_archive_flag_spec='$convenience'
- fi
- archive_cmds_need_lc=yes
- archive_expsym_cmds='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
- # -brtl affects multiple linker settings, -berok does not and is overridden later
- compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`'
- if test svr4 != "$with_aix_soname"; then
- # This is similar to how AIX traditionally builds its shared libraries.
- archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
- fi
- if test aix != "$with_aix_soname"; then
- archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
- else
- # used by -dlpreopen to get the symbols
- archive_expsym_cmds="$archive_expsym_cmds"'~$MV $output_objdir/$realname.d/$soname $output_objdir'
- fi
- archive_expsym_cmds="$archive_expsym_cmds"'~$RM -r $output_objdir/$realname.d'
- fi
- fi
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- archive_expsym_cmds=''
- ;;
- m68k)
- archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
- hardcode_libdir_flag_spec='-L$libdir'
- hardcode_minus_L=yes
- ;;
- esac
- ;;
-
- bsdi[45]*)
- export_dynamic_flag_spec=-rdynamic
- ;;
-
- cygwin* | mingw* | pw32* | cegcc*)
- # When not using gcc, we currently assume that we are using
- # Microsoft Visual C++.
- # hardcode_libdir_flag_spec is actually meaningless, as there is
- # no search path for DLLs.
- case $cc_basename in
- cl*)
- # Native MSVC
- hardcode_libdir_flag_spec=' '
- allow_undefined_flag=unsupported
- always_export_symbols=yes
- file_list_spec='@'
- # Tell ltmain to make .lib files, not .a files.
- libext=lib
- # Tell ltmain to make .dll files, not .so files.
- shrext_cmds=.dll
- # FIXME: Setting linknames here is a bad hack.
- archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
- archive_expsym_cmds='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then
- cp "$export_symbols" "$output_objdir/$soname.def";
- echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
- else
- $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
- fi~
- $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
- linknames='
- # The linker will not automatically build a static lib if we build a DLL.
- # _LT_TAGVAR(old_archive_from_new_cmds, )='true'
- enable_shared_with_static_runtimes=yes
- exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
- export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols'
- # Don't use ranlib
- old_postinstall_cmds='chmod 644 $oldlib'
- postlink_cmds='lt_outputfile="@OUTPUT@"~
- lt_tool_outputfile="@TOOL_OUTPUT@"~
- case $lt_outputfile in
- *.exe|*.EXE) ;;
- *)
- lt_outputfile=$lt_outputfile.exe
- lt_tool_outputfile=$lt_tool_outputfile.exe
- ;;
- esac~
- if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
- $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
- $RM "$lt_outputfile.manifest";
- fi'
- ;;
- *)
- # Assume MSVC wrapper
- hardcode_libdir_flag_spec=' '
- allow_undefined_flag=unsupported
- # Tell ltmain to make .lib files, not .a files.
- libext=lib
- # Tell ltmain to make .dll files, not .so files.
- shrext_cmds=.dll
- # FIXME: Setting linknames here is a bad hack.
- archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
- # The linker will automatically build a .lib file if we build a DLL.
- old_archive_from_new_cmds='true'
- # FIXME: Should let the user specify the lib program.
- old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs'
- enable_shared_with_static_runtimes=yes
- ;;
- esac
- ;;
-
- darwin* | rhapsody*)
-
-
- archive_cmds_need_lc=no
- hardcode_direct=no
- hardcode_automatic=yes
- hardcode_shlibpath_var=unsupported
- if test yes = "$lt_cv_ld_force_load"; then
- whole_archive_flag_spec='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
-
- else
- whole_archive_flag_spec=''
- fi
- link_all_deplibs=yes
- allow_undefined_flag=$_lt_dar_allow_undefined
- case $cc_basename in
- ifort*|nagfor*) _lt_dar_can_shared=yes ;;
- *) _lt_dar_can_shared=$GCC ;;
- esac
- if test yes = "$_lt_dar_can_shared"; then
- output_verbose_link_cmd=func_echo_all
- archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil"
- module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil"
- archive_expsym_cmds="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil"
- module_expsym_cmds="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil"
-
- else
- ld_shlibs=no
- fi
-
- ;;
-
- dgux*)
- archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- hardcode_libdir_flag_spec='-L$libdir'
- hardcode_shlibpath_var=no
- ;;
-
- # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
- # support. Future versions do this automatically, but an explicit c++rt0.o
- # does not break anything, and helps significantly (at the cost of a little
- # extra space).
- freebsd2.2*)
- archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
- hardcode_libdir_flag_spec='-R$libdir'
- hardcode_direct=yes
- hardcode_shlibpath_var=no
- ;;
-
- # Unfortunately, older versions of FreeBSD 2 do not have this feature.
- freebsd2.*)
- archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
- hardcode_direct=yes
- hardcode_minus_L=yes
- hardcode_shlibpath_var=no
- ;;
-
- # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
- freebsd* | dragonfly*)
- archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- hardcode_libdir_flag_spec='-R$libdir'
- hardcode_direct=yes
- hardcode_shlibpath_var=no
- ;;
-
- hpux9*)
- if test yes = "$GCC"; then
- archive_cmds='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
- else
- archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
- fi
- hardcode_libdir_flag_spec='$wl+b $wl$libdir'
- hardcode_libdir_separator=:
- hardcode_direct=yes
-
- # hardcode_minus_L: Not really in the search PATH,
- # but as the default location of the library.
- hardcode_minus_L=yes
- export_dynamic_flag_spec='$wl-E'
- ;;
-
- hpux10*)
- if test yes,no = "$GCC,$with_gnu_ld"; then
- archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
- else
- archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
- fi
- if test no = "$with_gnu_ld"; then
- hardcode_libdir_flag_spec='$wl+b $wl$libdir'
- hardcode_libdir_separator=:
- hardcode_direct=yes
- hardcode_direct_absolute=yes
- export_dynamic_flag_spec='$wl-E'
- # hardcode_minus_L: Not really in the search PATH,
- # but as the default location of the library.
- hardcode_minus_L=yes
- fi
- ;;
-
- hpux11*)
- if test yes,no = "$GCC,$with_gnu_ld"; then
- case $host_cpu in
- hppa*64*)
- archive_cmds='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- ia64*)
- archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- *)
- archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- else
- case $host_cpu in
- hppa*64*)
- archive_cmds='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- ia64*)
- archive_cmds='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- *)
-
- # Older versions of the 11.00 compiler do not understand -b yet
- # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5
-$as_echo_n "checking if $CC understands -b... " >&6; }
-if ${lt_cv_prog_compiler__b+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_prog_compiler__b=no
- save_LDFLAGS=$LDFLAGS
- LDFLAGS="$LDFLAGS -b"
- echo "$lt_simple_link_test_code" > conftest.$ac_ext
- if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
- # The linker can only warn and ignore the option if not recognized
- # So say no if there are warnings
- if test -s conftest.err; then
- # Append any errors to the config.log.
- cat conftest.err 1>&5
- $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
- $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
- if diff conftest.exp conftest.er2 >/dev/null; then
- lt_cv_prog_compiler__b=yes
- fi
- else
- lt_cv_prog_compiler__b=yes
- fi
- fi
- $RM -r conftest*
- LDFLAGS=$save_LDFLAGS
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5
-$as_echo "$lt_cv_prog_compiler__b" >&6; }
-
-if test yes = "$lt_cv_prog_compiler__b"; then
- archive_cmds='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
-else
- archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
-fi
-
- ;;
- esac
- fi
- if test no = "$with_gnu_ld"; then
- hardcode_libdir_flag_spec='$wl+b $wl$libdir'
- hardcode_libdir_separator=:
-
- case $host_cpu in
- hppa*64*|ia64*)
- hardcode_direct=no
- hardcode_shlibpath_var=no
- ;;
- *)
- hardcode_direct=yes
- hardcode_direct_absolute=yes
- export_dynamic_flag_spec='$wl-E'
-
- # hardcode_minus_L: Not really in the search PATH,
- # but as the default location of the library.
- hardcode_minus_L=yes
- ;;
- esac
- fi
- ;;
-
- irix5* | irix6* | nonstopux*)
- if test yes = "$GCC"; then
- archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
- # Try to use the -exported_symbol ld option, if it does not
- # work, assume that -exports_file does not work either and
- # implicitly export all symbols.
- # This should be the same for all languages, so no per-tag cache variable.
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $host_os linker accepts -exported_symbol" >&5
-$as_echo_n "checking whether the $host_os linker accepts -exported_symbol... " >&6; }
-if ${lt_cv_irix_exported_symbol+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- save_LDFLAGS=$LDFLAGS
- LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null"
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-int foo (void) { return 0; }
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- lt_cv_irix_exported_symbol=yes
-else
- lt_cv_irix_exported_symbol=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
- LDFLAGS=$save_LDFLAGS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_irix_exported_symbol" >&5
-$as_echo "$lt_cv_irix_exported_symbol" >&6; }
- if test yes = "$lt_cv_irix_exported_symbol"; then
- archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
- fi
- else
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
- archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib'
- fi
- archive_cmds_need_lc='no'
- hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
- hardcode_libdir_separator=:
- inherit_rpath=yes
- link_all_deplibs=yes
- ;;
-
- linux*)
- case $cc_basename in
- tcc*)
- # Fabrice Bellard et al's Tiny C Compiler
- ld_shlibs=yes
- archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- ;;
-
- netbsd*)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out
- else
- archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF
- fi
- hardcode_libdir_flag_spec='-R$libdir'
- hardcode_direct=yes
- hardcode_shlibpath_var=no
- ;;
-
- newsos6)
- archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- hardcode_direct=yes
- hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
- hardcode_libdir_separator=:
- hardcode_shlibpath_var=no
- ;;
-
- *nto* | *qnx*)
- ;;
-
- openbsd* | bitrig*)
- if test -f /usr/libexec/ld.so; then
- hardcode_direct=yes
- hardcode_shlibpath_var=no
- hardcode_direct_absolute=yes
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
- archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols'
- hardcode_libdir_flag_spec='$wl-rpath,$libdir'
- export_dynamic_flag_spec='$wl-E'
- else
- archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- hardcode_libdir_flag_spec='$wl-rpath,$libdir'
- fi
- else
- ld_shlibs=no
- fi
- ;;
-
- os2*)
- hardcode_libdir_flag_spec='-L$libdir'
- hardcode_minus_L=yes
- allow_undefined_flag=unsupported
- shrext_cmds=.dll
- archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
- $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
- $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
- $ECHO EXPORTS >> $output_objdir/$libname.def~
- emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
- $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
- emximp -o $lib $output_objdir/$libname.def'
- archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
- $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
- $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
- $ECHO EXPORTS >> $output_objdir/$libname.def~
- prefix_cmds="$SED"~
- if test EXPORTS = "`$SED 1q $export_symbols`"; then
- prefix_cmds="$prefix_cmds -e 1d";
- fi~
- prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
- cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
- $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
- emximp -o $lib $output_objdir/$libname.def'
- old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
- enable_shared_with_static_runtimes=yes
- ;;
-
- osf3*)
- if test yes = "$GCC"; then
- allow_undefined_flag=' $wl-expect_unresolved $wl\*'
- archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
- else
- allow_undefined_flag=' -expect_unresolved \*'
- archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
- fi
- archive_cmds_need_lc='no'
- hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
- hardcode_libdir_separator=:
- ;;
-
- osf4* | osf5*) # as osf3* with the addition of -msym flag
- if test yes = "$GCC"; then
- allow_undefined_flag=' $wl-expect_unresolved $wl\*'
- archive_cmds='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
- hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
- else
- allow_undefined_flag=' -expect_unresolved \*'
- archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
- archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
- $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp'
-
- # Both c and cxx compiler support -rpath directly
- hardcode_libdir_flag_spec='-rpath $libdir'
- fi
- archive_cmds_need_lc='no'
- hardcode_libdir_separator=:
- ;;
-
- solaris*)
- no_undefined_flag=' -z defs'
- if test yes = "$GCC"; then
- wlarc='$wl'
- archive_cmds='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
- else
- case `$CC -V 2>&1` in
- *"Compilers 5.0"*)
- wlarc=''
- archive_cmds='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags'
- archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
- ;;
- *)
- wlarc='$wl'
- archive_cmds='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
- ;;
- esac
- fi
- hardcode_libdir_flag_spec='-R$libdir'
- hardcode_shlibpath_var=no
- case $host_os in
- solaris2.[0-5] | solaris2.[0-5].*) ;;
- *)
- # The compiler driver will combine and reorder linker options,
- # but understands '-z linker_flag'. GCC discards it without '$wl',
- # but is careful enough not to reorder.
- # Supported since Solaris 2.6 (maybe 2.5.1?)
- if test yes = "$GCC"; then
- whole_archive_flag_spec='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
- else
- whole_archive_flag_spec='-z allextract$convenience -z defaultextract'
- fi
- ;;
- esac
- link_all_deplibs=yes
- ;;
-
- sunos4*)
- if test sequent = "$host_vendor"; then
- # Use $CC to link under sequent, because it throws in some extra .o
- # files that make .init and .fini sections work.
- archive_cmds='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags'
- else
- archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
- fi
- hardcode_libdir_flag_spec='-L$libdir'
- hardcode_direct=yes
- hardcode_minus_L=yes
- hardcode_shlibpath_var=no
- ;;
-
- sysv4)
- case $host_vendor in
- sni)
- archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- hardcode_direct=yes # is this really true???
- ;;
- siemens)
- ## LD is ld it makes a PLAMLIB
- ## CC just makes a GrossModule.
- archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
- reload_cmds='$CC -r -o $output$reload_objs'
- hardcode_direct=no
- ;;
- motorola)
- archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- hardcode_direct=no #Motorola manual says yes, but my tests say they lie
- ;;
- esac
- runpath_var='LD_RUN_PATH'
- hardcode_shlibpath_var=no
- ;;
-
- sysv4.3*)
- archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- hardcode_shlibpath_var=no
- export_dynamic_flag_spec='-Bexport'
- ;;
-
- sysv4*MP*)
- if test -d /usr/nec; then
- archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- hardcode_shlibpath_var=no
- runpath_var=LD_RUN_PATH
- hardcode_runpath_var=yes
- ld_shlibs=yes
- fi
- ;;
-
- sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
- no_undefined_flag='$wl-z,text'
- archive_cmds_need_lc=no
- hardcode_shlibpath_var=no
- runpath_var='LD_RUN_PATH'
-
- if test yes = "$GCC"; then
- archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- else
- archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- fi
- ;;
-
- sysv5* | sco3.2v5* | sco5v6*)
- # Note: We CANNOT use -z defs as we might desire, because we do not
- # link with -lc, and that would cause any symbols used from libc to
- # always be unresolved, which means just about no library would
- # ever link correctly. If we're not using GNU ld we use -z text
- # though, which does catch some bad symbols but isn't as heavy-handed
- # as -z defs.
- no_undefined_flag='$wl-z,text'
- allow_undefined_flag='$wl-z,nodefs'
- archive_cmds_need_lc=no
- hardcode_shlibpath_var=no
- hardcode_libdir_flag_spec='$wl-R,$libdir'
- hardcode_libdir_separator=':'
- link_all_deplibs=yes
- export_dynamic_flag_spec='$wl-Bexport'
- runpath_var='LD_RUN_PATH'
-
- if test yes = "$GCC"; then
- archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- else
- archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- fi
- ;;
-
- uts4*)
- archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- hardcode_libdir_flag_spec='-L$libdir'
- hardcode_shlibpath_var=no
- ;;
-
- *)
- ld_shlibs=no
- ;;
- esac
-
- if test sni = "$host_vendor"; then
- case $host in
- sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
- export_dynamic_flag_spec='$wl-Blargedynsym'
- ;;
- esac
- fi
- fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5
-$as_echo "$ld_shlibs" >&6; }
-test no = "$ld_shlibs" && can_build_shared=no
-
-with_gnu_ld=$with_gnu_ld
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-#
-# Do we need to explicitly link libc?
-#
-case "x$archive_cmds_need_lc" in
-x|xyes)
- # Assume -lc should be added
- archive_cmds_need_lc=yes
-
- if test yes,yes = "$GCC,$enable_shared"; then
- case $archive_cmds in
- *'~'*)
- # FIXME: we may have to deal with multi-command sequences.
- ;;
- '$CC '*)
- # Test whether the compiler implicitly links with -lc since on some
- # systems, -lgcc has to come before -lc. If gcc already passes -lc
- # to ld, don't add -lc before -lgcc.
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
-$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
-if ${lt_cv_archive_cmds_need_lc+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- $RM conftest*
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
- (eval $ac_compile) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } 2>conftest.err; then
- soname=conftest
- lib=conftest
- libobjs=conftest.$ac_objext
- deplibs=
- wl=$lt_prog_compiler_wl
- pic_flag=$lt_prog_compiler_pic
- compiler_flags=-v
- linker_flags=-v
- verstring=
- output_objdir=.
- libname=conftest
- lt_save_allow_undefined_flag=$allow_undefined_flag
- allow_undefined_flag=
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
- (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }
- then
- lt_cv_archive_cmds_need_lc=no
- else
- lt_cv_archive_cmds_need_lc=yes
- fi
- allow_undefined_flag=$lt_save_allow_undefined_flag
- else
- cat conftest.err 1>&5
- fi
- $RM conftest*
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5
-$as_echo "$lt_cv_archive_cmds_need_lc" >&6; }
- archive_cmds_need_lc=$lt_cv_archive_cmds_need_lc
- ;;
- esac
- fi
- ;;
-esac
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
-
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
-$as_echo_n "checking dynamic linker characteristics... " >&6; }
-
-if test yes = "$GCC"; then
- case $host_os in
- darwin*) lt_awk_arg='/^libraries:/,/LR/' ;;
- *) lt_awk_arg='/^libraries:/' ;;
- esac
- case $host_os in
- mingw* | cegcc*) lt_sed_strip_eq='s|=\([A-Za-z]:\)|\1|g' ;;
- *) lt_sed_strip_eq='s|=/|/|g' ;;
- esac
- lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
- case $lt_search_path_spec in
- *\;*)
- # if the path contains ";" then we assume it to be the separator
- # otherwise default to the standard path separator (i.e. ":") - it is
- # assumed that no part of a normal pathname contains ";" but that should
- # okay in the real world where ";" in dirpaths is itself problematic.
- lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
- ;;
- *)
- lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
- ;;
- esac
- # Ok, now we have the path, separated by spaces, we can step through it
- # and add multilib dir if necessary...
- lt_tmp_lt_search_path_spec=
- lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
- # ...but if some path component already ends with the multilib dir we assume
- # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer).
- case "$lt_multi_os_dir; $lt_search_path_spec " in
- "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*)
- lt_multi_os_dir=
- ;;
- esac
- for lt_sys_path in $lt_search_path_spec; do
- if test -d "$lt_sys_path$lt_multi_os_dir"; then
- lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir"
- elif test -n "$lt_multi_os_dir"; then
- test -d "$lt_sys_path" && \
- lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
- fi
- done
- lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
-BEGIN {RS = " "; FS = "/|\n";} {
- lt_foo = "";
- lt_count = 0;
- for (lt_i = NF; lt_i > 0; lt_i--) {
- if ($lt_i != "" && $lt_i != ".") {
- if ($lt_i == "..") {
- lt_count++;
- } else {
- if (lt_count == 0) {
- lt_foo = "/" $lt_i lt_foo;
- } else {
- lt_count--;
- }
- }
- }
- }
- if (lt_foo != "") { lt_freq[lt_foo]++; }
- if (lt_freq[lt_foo] == 1) { print lt_foo; }
-}'`
- # AWK program above erroneously prepends '/' to C:/dos/paths
- # for these hosts.
- case $host_os in
- mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
- $SED 's|/\([A-Za-z]:\)|\1|g'` ;;
- esac
- sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
-else
- sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
-fi
-library_names_spec=
-libname_spec='lib$name'
-soname_spec=
-shrext_cmds=.so
-postinstall_cmds=
-postuninstall_cmds=
-finish_cmds=
-finish_eval=
-shlibpath_var=
-shlibpath_overrides_runpath=unknown
-version_type=none
-dynamic_linker="$host_os ld.so"
-sys_lib_dlsearch_path_spec="/lib /usr/lib"
-need_lib_prefix=unknown
-hardcode_into_libs=no
-
-# when you set need_version to no, make sure it does not cause -set_version
-# flags to be left without arguments
-need_version=unknown
-
-
-
-case $host_os in
-aix3*)
- version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
- shlibpath_var=LIBPATH
-
- # AIX 3 has no versioning support, so we append a major version to the name.
- soname_spec='$libname$release$shared_ext$major'
- ;;
-
-aix[4-9]*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- hardcode_into_libs=yes
- if test ia64 = "$host_cpu"; then
- # AIX 5 supports IA64
- library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
- shlibpath_var=LD_LIBRARY_PATH
- else
- # With GCC up to 2.95.x, collect2 would create an import file
- # for dependence libraries. The import file would start with
- # the line '#! .'. This would cause the generated library to
- # depend on '.', always an invalid library. This was fixed in
- # development snapshots of GCC prior to 3.0.
- case $host_os in
- aix4 | aix4.[01] | aix4.[01].*)
- if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
- echo ' yes '
- echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
- :
- else
- can_build_shared=no
- fi
- ;;
- esac
- # Using Import Files as archive members, it is possible to support
- # filename-based versioning of shared library archives on AIX. While
- # this would work for both with and without runtime linking, it will
- # prevent static linking of such archives. So we do filename-based
- # shared library versioning with .so extension only, which is used
- # when both runtime linking and shared linking is enabled.
- # Unfortunately, runtime linking may impact performance, so we do
- # not want this to be the default eventually. Also, we use the
- # versioned .so libs for executables only if there is the -brtl
- # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
- # To allow for filename-based versioning support, we need to create
- # libNAME.so.V as an archive file, containing:
- # *) an Import File, referring to the versioned filename of the
- # archive as well as the shared archive member, telling the
- # bitwidth (32 or 64) of that shared object, and providing the
- # list of exported symbols of that shared object, eventually
- # decorated with the 'weak' keyword
- # *) the shared object with the F_LOADONLY flag set, to really avoid
- # it being seen by the linker.
- # At run time we better use the real file rather than another symlink,
- # but for link time we create the symlink libNAME.so -> libNAME.so.V
-
- case $with_aix_soname,$aix_use_runtimelinking in
- # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
- # soname into executable. Probably we can add versioning support to
- # collect2, so additional links can be useful in future.
- aix,yes) # traditional libtool
- dynamic_linker='AIX unversionable lib.so'
- # If using run time linking (on AIX 4.2 or later) use lib<name>.so
- # instead of lib<name>.a to let people know that these are not
- # typical AIX shared libraries.
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- ;;
- aix,no) # traditional AIX only
- dynamic_linker='AIX lib.a(lib.so.V)'
- # We preserve .a as extension for shared libraries through AIX4.2
- # and later when we are not doing run time linking.
- library_names_spec='$libname$release.a $libname.a'
- soname_spec='$libname$release$shared_ext$major'
- ;;
- svr4,*) # full svr4 only
- dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)"
- library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
- # We do not specify a path in Import Files, so LIBPATH fires.
- shlibpath_overrides_runpath=yes
- ;;
- *,yes) # both, prefer svr4
- dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)"
- library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
- # unpreferred sharedlib libNAME.a needs extra handling
- postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
- postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
- # We do not specify a path in Import Files, so LIBPATH fires.
- shlibpath_overrides_runpath=yes
- ;;
- *,no) # both, prefer aix
- dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)"
- library_names_spec='$libname$release.a $libname.a'
- soname_spec='$libname$release$shared_ext$major'
- # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
- postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
- postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
- ;;
- esac
- shlibpath_var=LIBPATH
- fi
- ;;
-
-amigaos*)
- case $host_cpu in
- powerpc)
- # Since July 2007 AmigaOS4 officially supports .so libraries.
- # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- ;;
- m68k)
- library_names_spec='$libname.ixlibrary $libname.a'
- # Create ${libname}_ixlibrary.a entries in /sys/libs.
- finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
- ;;
- esac
- ;;
-
-beos*)
- library_names_spec='$libname$shared_ext'
- dynamic_linker="$host_os ld.so"
- shlibpath_var=LIBRARY_PATH
- ;;
-
-bsdi[45]*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
- sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
- # the default ld.so.conf also contains /usr/contrib/lib and
- # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
- # libtool to hard-code these into programs
- ;;
-
-cygwin* | mingw* | pw32* | cegcc*)
- version_type=windows
- shrext_cmds=.dll
- need_version=no
- need_lib_prefix=no
-
- case $GCC,$cc_basename in
- yes,*)
- # gcc
- library_names_spec='$libname.dll.a'
- # DLL is installed to $(libdir)/../bin by postinstall_cmds
- postinstall_cmds='base_file=`basename \$file`~
- dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
- dldir=$destdir/`dirname \$dlpath`~
- test -d \$dldir || mkdir -p \$dldir~
- $install_prog $dir/$dlname \$dldir/$dlname~
- chmod a+x \$dldir/$dlname~
- if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
- eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
- fi'
- postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
- dlpath=$dir/\$dldll~
- $RM \$dlpath'
- shlibpath_overrides_runpath=yes
-
- case $host_os in
- cygwin*)
- # Cygwin DLLs use 'cyg' prefix rather than 'lib'
- soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
-
- sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"
- ;;
- mingw* | cegcc*)
- # MinGW DLLs use traditional 'lib' prefix
- soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
- ;;
- pw32*)
- # pw32 DLLs use 'pw' prefix rather than 'lib'
- library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
- ;;
- esac
- dynamic_linker='Win32 ld.exe'
- ;;
-
- *,cl*)
- # Native MSVC
- libname_spec='$name'
- soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
- library_names_spec='$libname.dll.lib'
-
- case $build_os in
- mingw*)
- sys_lib_search_path_spec=
- lt_save_ifs=$IFS
- IFS=';'
- for lt_path in $LIB
- do
- IFS=$lt_save_ifs
- # Let DOS variable expansion print the short 8.3 style file name.
- lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
- sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
- done
- IFS=$lt_save_ifs
- # Convert to MSYS style.
- sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'`
- ;;
- cygwin*)
- # Convert to unix form, then to dos form, then back to unix form
- # but this time dos style (no spaces!) so that the unix form looks
- # like /cygdrive/c/PROGRA~1:/cygdr...
- sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
- sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
- sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
- ;;
- *)
- sys_lib_search_path_spec=$LIB
- if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
- # It is most probably a Windows format PATH.
- sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
- else
- sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
- fi
- # FIXME: find the short name or the path components, as spaces are
- # common. (e.g. "Program Files" -> "PROGRA~1")
- ;;
- esac
-
- # DLL is installed to $(libdir)/../bin by postinstall_cmds
- postinstall_cmds='base_file=`basename \$file`~
- dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
- dldir=$destdir/`dirname \$dlpath`~
- test -d \$dldir || mkdir -p \$dldir~
- $install_prog $dir/$dlname \$dldir/$dlname'
- postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
- dlpath=$dir/\$dldll~
- $RM \$dlpath'
- shlibpath_overrides_runpath=yes
- dynamic_linker='Win32 link.exe'
- ;;
-
- *)
- # Assume MSVC wrapper
- library_names_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext $libname.lib'
- dynamic_linker='Win32 ld.exe'
- ;;
- esac
- # FIXME: first we should search . and the directory the executable is in
- shlibpath_var=PATH
- ;;
-
-darwin* | rhapsody*)
- dynamic_linker="$host_os dyld"
- version_type=darwin
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
- soname_spec='$libname$release$major$shared_ext'
- shlibpath_overrides_runpath=yes
- shlibpath_var=DYLD_LIBRARY_PATH
- shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
-
- sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"
- sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
- ;;
-
-dgux*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- shlibpath_var=LD_LIBRARY_PATH
- ;;
-
-freebsd* | dragonfly*)
- # DragonFly does not have aout. When/if they implement a new
- # versioning mechanism, adjust this.
- if test -x /usr/bin/objformat; then
- objformat=`/usr/bin/objformat`
- else
- case $host_os in
- freebsd[23].*) objformat=aout ;;
- *) objformat=elf ;;
- esac
- fi
- version_type=freebsd-$objformat
- case $version_type in
- freebsd-elf*)
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- need_version=no
- need_lib_prefix=no
- ;;
- freebsd-*)
- library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
- need_version=yes
- ;;
- esac
- shlibpath_var=LD_LIBRARY_PATH
- case $host_os in
- freebsd2.*)
- shlibpath_overrides_runpath=yes
- ;;
- freebsd3.[01]* | freebsdelf3.[01]*)
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- ;;
- freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
- freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
- *) # from 4.6 on, and DragonFly
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- ;;
- esac
- ;;
-
-haiku*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- dynamic_linker="$host_os runtime_loader"
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- shlibpath_var=LIBRARY_PATH
- shlibpath_overrides_runpath=no
- sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
- hardcode_into_libs=yes
- ;;
-
-hpux9* | hpux10* | hpux11*)
- # Give a soname corresponding to the major version so that dld.sl refuses to
- # link against other versions.
- version_type=sunos
- need_lib_prefix=no
- need_version=no
- case $host_cpu in
- ia64*)
- shrext_cmds='.so'
- hardcode_into_libs=yes
- dynamic_linker="$host_os dld.so"
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- if test 32 = "$HPUX_IA64_MODE"; then
- sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
- sys_lib_dlsearch_path_spec=/usr/lib/hpux32
- else
- sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
- sys_lib_dlsearch_path_spec=/usr/lib/hpux64
- fi
- ;;
- hppa*64*)
- shrext_cmds='.sl'
- hardcode_into_libs=yes
- dynamic_linker="$host_os dld.sl"
- shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
- shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
- sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
- ;;
- *)
- shrext_cmds='.sl'
- dynamic_linker="$host_os dld.sl"
- shlibpath_var=SHLIB_PATH
- shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- ;;
- esac
- # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
- postinstall_cmds='chmod 555 $lib'
- # or fails outright, so override atomically:
- install_override_mode=555
- ;;
-
-interix[3-9]*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
-
-irix5* | irix6* | nonstopux*)
- case $host_os in
- nonstopux*) version_type=nonstopux ;;
- *)
- if test yes = "$lt_cv_prog_gnu_ld"; then
- version_type=linux # correct to gnu/linux during the next big refactor
- else
- version_type=irix
- fi ;;
- esac
- need_lib_prefix=no
- need_version=no
- soname_spec='$libname$release$shared_ext$major'
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
- case $host_os in
- irix5* | nonstopux*)
- libsuff= shlibsuff=
- ;;
- *)
- case $LD in # libtool.m4 will add one of these switches to LD
- *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
- libsuff= shlibsuff= libmagic=32-bit;;
- *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
- libsuff=32 shlibsuff=N32 libmagic=N32;;
- *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
- libsuff=64 shlibsuff=64 libmagic=64-bit;;
- *) libsuff= shlibsuff= libmagic=never-match;;
- esac
- ;;
- esac
- shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
- shlibpath_overrides_runpath=no
- sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
- sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
- hardcode_into_libs=yes
- ;;
-
-# No shared lib support for Linux oldld, aout, or coff.
-linux*oldld* | linux*aout* | linux*coff*)
- dynamic_linker=no
- ;;
-
-linux*android*)
- version_type=none # Android doesn't support versioned libraries.
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext'
- soname_spec='$libname$release$shared_ext'
- finish_cmds=
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
-
- # This implies no fast_install, which is unacceptable.
- # Some rework will be needed to allow for fast_install
- # before this can be enabled.
- hardcode_into_libs=yes
-
- dynamic_linker='Android linker'
- # Don't embed -rpath directories since the linker doesn't support them.
- hardcode_libdir_flag_spec='-L$libdir'
- ;;
-
-# This must be glibc/ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
-
- # Some binutils ld are patched to set DT_RUNPATH
- if ${lt_cv_shlibpath_overrides_runpath+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_shlibpath_overrides_runpath=no
- save_LDFLAGS=$LDFLAGS
- save_libdir=$libdir
- eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \
- LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\""
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- if ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
- lt_cv_shlibpath_overrides_runpath=yes
-fi
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
- LDFLAGS=$save_LDFLAGS
- libdir=$save_libdir
-
-fi
-
- shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
-
- # This implies no fast_install, which is unacceptable.
- # Some rework will be needed to allow for fast_install
- # before this can be enabled.
- hardcode_into_libs=yes
-
- # Ideally, we could use ldconfig to report *all* directores which are
- # searched for libraries, however this is still not possible. Aside from not
- # being certain /sbin/ldconfig is available, command
- # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
- # even though it is searched at run-time. Try to do the best guess by
- # appending ld.so.conf contents (and includes) to the search path.
- if test -f /etc/ld.so.conf; then
- lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
- sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
- fi
-
- # We used to test for /lib/ld.so.1 and disable shared libraries on
- # powerpc, because MkLinux only supported shared libraries with the
- # GNU dynamic linker. Since this was broken with cross compilers,
- # most powerpc-linux boxes support dynamic linking these days and
- # people can always --disable-shared, the test was removed, and we
- # assume the GNU/Linux dynamic linker is in use.
- dynamic_linker='GNU/Linux ld.so'
- ;;
-
-netbsd*)
- version_type=sunos
- need_lib_prefix=no
- need_version=no
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
- dynamic_linker='NetBSD (a.out) ld.so'
- else
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- dynamic_linker='NetBSD ld.elf_so'
- fi
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- ;;
-
-newsos6)
- version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- ;;
-
-*nto* | *qnx*)
- version_type=qnx
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- dynamic_linker='ldqnx.so'
- ;;
-
-openbsd* | bitrig*)
- version_type=sunos
- sys_lib_dlsearch_path_spec=/usr/lib
- need_lib_prefix=no
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
- need_version=no
- else
- need_version=yes
- fi
- library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- ;;
-
-os2*)
- libname_spec='$name'
- version_type=windows
- shrext_cmds=.dll
- need_version=no
- need_lib_prefix=no
- # OS/2 can only load a DLL with a base name of 8 characters or less.
- soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
- v=$($ECHO $release$versuffix | tr -d .-);
- n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
- $ECHO $n$v`$shared_ext'
- library_names_spec='${libname}_dll.$libext'
- dynamic_linker='OS/2 ld.exe'
- shlibpath_var=BEGINLIBPATH
- sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
- sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
- postinstall_cmds='base_file=`basename \$file`~
- dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
- dldir=$destdir/`dirname \$dlpath`~
- test -d \$dldir || mkdir -p \$dldir~
- $install_prog $dir/$dlname \$dldir/$dlname~
- chmod a+x \$dldir/$dlname~
- if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
- eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
- fi'
- postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
- dlpath=$dir/\$dldll~
- $RM \$dlpath'
- ;;
-
-osf3* | osf4* | osf5*)
- version_type=osf
- need_lib_prefix=no
- need_version=no
- soname_spec='$libname$release$shared_ext$major'
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- shlibpath_var=LD_LIBRARY_PATH
- sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
- sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
- ;;
-
-rdos*)
- dynamic_linker=no
- ;;
-
-solaris*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- # ldd complains unless libraries are executable
- postinstall_cmds='chmod +x $lib'
- ;;
-
-sunos4*)
- version_type=sunos
- library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
- finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- if test yes = "$with_gnu_ld"; then
- need_lib_prefix=no
- fi
- need_version=yes
- ;;
-
-sysv4 | sysv4.3*)
- version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- shlibpath_var=LD_LIBRARY_PATH
- case $host_vendor in
- sni)
- shlibpath_overrides_runpath=no
- need_lib_prefix=no
- runpath_var=LD_RUN_PATH
- ;;
- siemens)
- need_lib_prefix=no
- ;;
- motorola)
- need_lib_prefix=no
- need_version=no
- shlibpath_overrides_runpath=no
- sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
- ;;
- esac
- ;;
-
-sysv4*MP*)
- if test -d /usr/nec; then
- version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext'
- soname_spec='$libname$shared_ext.$major'
- shlibpath_var=LD_LIBRARY_PATH
- fi
- ;;
-
-sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
- version_type=sco
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- if test yes = "$with_gnu_ld"; then
- sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
- else
- sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
- case $host_os in
- sco3.2v5*)
- sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
- ;;
- esac
- fi
- sys_lib_dlsearch_path_spec='/usr/lib'
- ;;
-
-tpf*)
- # TPF is a cross-target only. Preferred cross-host = GNU/Linux.
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
-
-uts4*)
- version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- shlibpath_var=LD_LIBRARY_PATH
- ;;
-
-*)
- dynamic_linker=no
- ;;
-esac
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
-$as_echo "$dynamic_linker" >&6; }
-test no = "$dynamic_linker" && can_build_shared=no
-
-variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
-if test yes = "$GCC"; then
- variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
-fi
-
-if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then
- sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec
-fi
-
-if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then
- sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec
-fi
-
-# remember unaugmented sys_lib_dlsearch_path content for libtool script decls...
-configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec
-
-# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code
-func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH"
-
-# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool
-configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
-$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
-hardcode_action=
-if test -n "$hardcode_libdir_flag_spec" ||
- test -n "$runpath_var" ||
- test yes = "$hardcode_automatic"; then
-
- # We can hardcode non-existent directories.
- if test no != "$hardcode_direct" &&
- # If the only mechanism to avoid hardcoding is shlibpath_var, we
- # have to relink, otherwise we might link with an installed library
- # when we should be linking with a yet-to-be-installed one
- ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, )" &&
- test no != "$hardcode_minus_L"; then
- # Linking always hardcodes the temporary library directory.
- hardcode_action=relink
- else
- # We can link without hardcoding, and we can hardcode nonexisting dirs.
- hardcode_action=immediate
- fi
-else
- # We cannot hardcode anything, or else we can only hardcode existing
- # directories.
- hardcode_action=unsupported
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5
-$as_echo "$hardcode_action" >&6; }
-
-if test relink = "$hardcode_action" ||
- test yes = "$inherit_rpath"; then
- # Fast installation is not supported
- enable_fast_install=no
-elif test yes = "$shlibpath_overrides_runpath" ||
- test no = "$enable_shared"; then
- # Fast installation is not necessary
- enable_fast_install=needless
-fi
-
-
-
-
-
-
- if test yes != "$enable_dlopen"; then
- enable_dlopen=unknown
- enable_dlopen_self=unknown
- enable_dlopen_self_static=unknown
-else
- lt_cv_dlopen=no
- lt_cv_dlopen_libs=
-
- case $host_os in
- beos*)
- lt_cv_dlopen=load_add_on
- lt_cv_dlopen_libs=
- lt_cv_dlopen_self=yes
- ;;
-
- mingw* | pw32* | cegcc*)
- lt_cv_dlopen=LoadLibrary
- lt_cv_dlopen_libs=
- ;;
-
- cygwin*)
- lt_cv_dlopen=dlopen
- lt_cv_dlopen_libs=
- ;;
-
- darwin*)
- # if libdl is installed we need to link against it
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
-$as_echo_n "checking for dlopen in -ldl... " >&6; }
-if ${ac_cv_lib_dl_dlopen+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-ldl $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char dlopen ();
-int
-main ()
-{
-return dlopen ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_dl_dlopen=yes
-else
- ac_cv_lib_dl_dlopen=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
-$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
-if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
- lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl
-else
-
- lt_cv_dlopen=dyld
- lt_cv_dlopen_libs=
- lt_cv_dlopen_self=yes
-
-fi
-
- ;;
-
- tpf*)
- # Don't try to run any link tests for TPF. We know it's impossible
- # because TPF is a cross-compiler, and we know how we open DSOs.
- lt_cv_dlopen=dlopen
- lt_cv_dlopen_libs=
- lt_cv_dlopen_self=no
- ;;
-
- *)
- ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load"
-if test "x$ac_cv_func_shl_load" = xyes; then :
- lt_cv_dlopen=shl_load
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5
-$as_echo_n "checking for shl_load in -ldld... " >&6; }
-if ${ac_cv_lib_dld_shl_load+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-ldld $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char shl_load ();
-int
-main ()
-{
-return shl_load ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_dld_shl_load=yes
-else
- ac_cv_lib_dld_shl_load=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5
-$as_echo "$ac_cv_lib_dld_shl_load" >&6; }
-if test "x$ac_cv_lib_dld_shl_load" = xyes; then :
- lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld
-else
- ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
-if test "x$ac_cv_func_dlopen" = xyes; then :
- lt_cv_dlopen=dlopen
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
-$as_echo_n "checking for dlopen in -ldl... " >&6; }
-if ${ac_cv_lib_dl_dlopen+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-ldl $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char dlopen ();
-int
-main ()
-{
-return dlopen ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_dl_dlopen=yes
-else
- ac_cv_lib_dl_dlopen=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
-$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
-if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
- lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5
-$as_echo_n "checking for dlopen in -lsvld... " >&6; }
-if ${ac_cv_lib_svld_dlopen+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lsvld $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char dlopen ();
-int
-main ()
-{
-return dlopen ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_svld_dlopen=yes
-else
- ac_cv_lib_svld_dlopen=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5
-$as_echo "$ac_cv_lib_svld_dlopen" >&6; }
-if test "x$ac_cv_lib_svld_dlopen" = xyes; then :
- lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5
-$as_echo_n "checking for dld_link in -ldld... " >&6; }
-if ${ac_cv_lib_dld_dld_link+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-ldld $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char dld_link ();
-int
-main ()
-{
-return dld_link ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_dld_dld_link=yes
-else
- ac_cv_lib_dld_dld_link=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5
-$as_echo "$ac_cv_lib_dld_dld_link" >&6; }
-if test "x$ac_cv_lib_dld_dld_link" = xyes; then :
- lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld
-fi
-
-
-fi
-
-
-fi
-
-
-fi
-
-
-fi
-
-
-fi
-
- ;;
- esac
-
- if test no = "$lt_cv_dlopen"; then
- enable_dlopen=no
- else
- enable_dlopen=yes
- fi
-
- case $lt_cv_dlopen in
- dlopen)
- save_CPPFLAGS=$CPPFLAGS
- test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
-
- save_LDFLAGS=$LDFLAGS
- wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
-
- save_LIBS=$LIBS
- LIBS="$lt_cv_dlopen_libs $LIBS"
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5
-$as_echo_n "checking whether a program can dlopen itself... " >&6; }
-if ${lt_cv_dlopen_self+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test yes = "$cross_compiling"; then :
- lt_cv_dlopen_self=cross
-else
- lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
- lt_status=$lt_dlunknown
- cat > conftest.$ac_ext <<_LT_EOF
-#line $LINENO "configure"
-#include "confdefs.h"
-
-#if HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-
-#include <stdio.h>
-
-#ifdef RTLD_GLOBAL
-# define LT_DLGLOBAL RTLD_GLOBAL
-#else
-# ifdef DL_GLOBAL
-# define LT_DLGLOBAL DL_GLOBAL
-# else
-# define LT_DLGLOBAL 0
-# endif
-#endif
-
-/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
- find out it does not work in some platform. */
-#ifndef LT_DLLAZY_OR_NOW
-# ifdef RTLD_LAZY
-# define LT_DLLAZY_OR_NOW RTLD_LAZY
-# else
-# ifdef DL_LAZY
-# define LT_DLLAZY_OR_NOW DL_LAZY
-# else
-# ifdef RTLD_NOW
-# define LT_DLLAZY_OR_NOW RTLD_NOW
-# else
-# ifdef DL_NOW
-# define LT_DLLAZY_OR_NOW DL_NOW
-# else
-# define LT_DLLAZY_OR_NOW 0
-# endif
-# endif
-# endif
-# endif
-#endif
-
-/* When -fvisibility=hidden is used, assume the code has been annotated
- correspondingly for the symbols needed. */
-#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
-int fnord () __attribute__((visibility("default")));
-#endif
-
-int fnord () { return 42; }
-int main ()
-{
- void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
- int status = $lt_dlunknown;
-
- if (self)
- {
- if (dlsym (self,"fnord")) status = $lt_dlno_uscore;
- else
- {
- if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
- else puts (dlerror ());
- }
- /* dlclose (self); */
- }
- else
- puts (dlerror ());
-
- return status;
-}
-_LT_EOF
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
- (eval $ac_link) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then
- (./conftest; exit; ) >&5 2>/dev/null
- lt_status=$?
- case x$lt_status in
- x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;;
- x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;;
- x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;;
- esac
- else :
- # compilation failed
- lt_cv_dlopen_self=no
- fi
-fi
-rm -fr conftest*
-
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5
-$as_echo "$lt_cv_dlopen_self" >&6; }
-
- if test yes = "$lt_cv_dlopen_self"; then
- wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5
-$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; }
-if ${lt_cv_dlopen_self_static+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test yes = "$cross_compiling"; then :
- lt_cv_dlopen_self_static=cross
-else
- lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
- lt_status=$lt_dlunknown
- cat > conftest.$ac_ext <<_LT_EOF
-#line $LINENO "configure"
-#include "confdefs.h"
-
-#if HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-
-#include <stdio.h>
-
-#ifdef RTLD_GLOBAL
-# define LT_DLGLOBAL RTLD_GLOBAL
-#else
-# ifdef DL_GLOBAL
-# define LT_DLGLOBAL DL_GLOBAL
-# else
-# define LT_DLGLOBAL 0
-# endif
-#endif
-
-/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
- find out it does not work in some platform. */
-#ifndef LT_DLLAZY_OR_NOW
-# ifdef RTLD_LAZY
-# define LT_DLLAZY_OR_NOW RTLD_LAZY
-# else
-# ifdef DL_LAZY
-# define LT_DLLAZY_OR_NOW DL_LAZY
-# else
-# ifdef RTLD_NOW
-# define LT_DLLAZY_OR_NOW RTLD_NOW
-# else
-# ifdef DL_NOW
-# define LT_DLLAZY_OR_NOW DL_NOW
-# else
-# define LT_DLLAZY_OR_NOW 0
-# endif
-# endif
-# endif
-# endif
-#endif
-
-/* When -fvisibility=hidden is used, assume the code has been annotated
- correspondingly for the symbols needed. */
-#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
-int fnord () __attribute__((visibility("default")));
-#endif
-
-int fnord () { return 42; }
-int main ()
-{
- void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
- int status = $lt_dlunknown;
-
- if (self)
- {
- if (dlsym (self,"fnord")) status = $lt_dlno_uscore;
- else
- {
- if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
- else puts (dlerror ());
- }
- /* dlclose (self); */
- }
- else
- puts (dlerror ());
-
- return status;
-}
-_LT_EOF
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
- (eval $ac_link) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then
- (./conftest; exit; ) >&5 2>/dev/null
- lt_status=$?
- case x$lt_status in
- x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;;
- x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;;
- x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;;
- esac
- else :
- # compilation failed
- lt_cv_dlopen_self_static=no
- fi
-fi
-rm -fr conftest*
-
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5
-$as_echo "$lt_cv_dlopen_self_static" >&6; }
- fi
-
- CPPFLAGS=$save_CPPFLAGS
- LDFLAGS=$save_LDFLAGS
- LIBS=$save_LIBS
- ;;
- esac
-
- case $lt_cv_dlopen_self in
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for zlibVersion in -lz" >&5
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-extern "C"
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-char zlibVersion ();
-int
-main ()
-{
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-{
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- ac_check_lib_save_LIBS=$LIBS
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-
-/* Override any GCC internal prototype to avoid an error.
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-{
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_feenableexcept" >&5
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-_ACEOF
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- LIBS="-lm $LIBS"
-
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-_ACEOF
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-
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-# DO anything with it.
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- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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-* )
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-
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-$as_echo "yes" >&6; }
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-;;
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- HAVE_LD_VERSION_SCRIPT_TRUE='#'
- HAVE_LD_VERSION_SCRIPT_FALSE=
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- SYMBOL_PREFIX=`echo "PREFIX=__USER_LABEL_PREFIX__" \
- | ${CPP-${CC-gcc} -E} - 2>&1 \
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- | ${SED-sed} -e "s:^PREFIX=::" -e "s:__USER_LABEL_PREFIX__::"`
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $SYMBOL_PREFIX" >&5
-$as_echo "$SYMBOL_PREFIX" >&6; }
-fi
-
-# Substitutions for .in files
-
-
-
-
-
-# Additional arguments (and substitutions)
-# Allow the pkg-config directory to be set
-
-# Check whether --with-pkgconfigdir was given.
-if test "${with_pkgconfigdir+set}" = set; then :
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-else
- pkgconfigdir='${libdir}/pkgconfig'
-fi
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: pkgconfig directory is ${pkgconfigdir}" >&5
-$as_echo "$as_me: pkgconfig directory is ${pkgconfigdir}" >&6;}
-
-# Make the *-config binary config scripts optional
-
-# Check whether --with-binconfigs was given.
-if test "${with_binconfigs+set}" = set; then :
- withval=$with_binconfigs; if test "${withval}" = no; then
- binconfigs=
- { $as_echo "$as_me:${as_lineno-$LINENO}: libpng-config scripts will not be built" >&5
-$as_echo "$as_me: libpng-config scripts will not be built" >&6;}
- else
- binconfigs='${binconfigs}'
- fi
-else
- binconfigs='${binconfigs}'
-fi
-
-
-
-# Support for prefixes to the API function names; this will generate defines
-# at the start of the build to rename exported library functions
-
-# Check whether --with-libpng-prefix was given.
-if test "${with_libpng_prefix+set}" = set; then :
- withval=$with_libpng_prefix; if test "${withval:-no}" != "no"; then
- PNG_PREFIX=${withval}
-
- fi
-fi
-
- if test "${with_libpng_prefix:-no}" != "no"; then
- DO_PNG_PREFIX_TRUE=
- DO_PNG_PREFIX_FALSE='#'
-else
- DO_PNG_PREFIX_TRUE='#'
- DO_PNG_PREFIX_FALSE=
-fi
-
-
-# Control over what links are made for installed files. Versioned files are
-# always installed, when the following options are turned on corresponding
-# unversioned links are also created (normally as symbolic links):
-# Check whether --enable-unversioned-links was given.
-if test "${enable_unversioned_links+set}" = set; then :
- enableval=$enable_unversioned_links;
-fi
-
-
-# The AM_CONDITIONAL test is written so that the default is enabled;
-# --disable-unversioned-links must be given to turn the option off.
- if test "$enable_unversioned_links" != "no"; then
- DO_INSTALL_LINKS_TRUE=
- DO_INSTALL_LINKS_FALSE='#'
-else
- DO_INSTALL_LINKS_TRUE='#'
- DO_INSTALL_LINKS_FALSE=
-fi
-
-
-# Check whether --enable-unversioned-libpng-pc was given.
-if test "${enable_unversioned_libpng_pc+set}" = set; then :
- enableval=$enable_unversioned_libpng_pc;
-fi
-
- if test "$enable_unversioned_libpng_pc" != "no"; then
- DO_INSTALL_LIBPNG_PC_TRUE=
- DO_INSTALL_LIBPNG_PC_FALSE='#'
-else
- DO_INSTALL_LIBPNG_PC_TRUE='#'
- DO_INSTALL_LIBPNG_PC_FALSE=
-fi
-
-
-# Check whether --enable-unversioned-libpng-config was given.
-if test "${enable_unversioned_libpng_config+set}" = set; then :
- enableval=$enable_unversioned_libpng_config;
-fi
-
- if test "$enable_unversioned_libpng_config" != "no"; then
- DO_INSTALL_LIBPNG_CONFIG_TRUE=
- DO_INSTALL_LIBPNG_CONFIG_FALSE='#'
-else
- DO_INSTALL_LIBPNG_CONFIG_TRUE='#'
- DO_INSTALL_LIBPNG_CONFIG_FALSE=
-fi
-
-
-# HOST SPECIFIC OPTIONS
-# =====================
-#
-# DEFAULT
-# =======
-#
-# Check whether --enable-hardware-optimizations was given.
-if test "${enable_hardware_optimizations+set}" = set; then :
- enableval=$enable_hardware_optimizations; case "$enableval" in
- no|off)
- # disable hardware optimization on all systems:
- enable_arm_neon=no
-
-$as_echo "#define PNG_ARM_NEON_OPT 0" >>confdefs.h
-
- enable_mips_msa=no
-
-$as_echo "#define PNG_MIPS_MSA_OPT 0" >>confdefs.h
-
- enable_powerpc_vsx=no
-
-$as_echo "#define PNG_POWERPC_VSX_OPT 0" >>confdefs.h
-
- enable_intel_sse=no
-
-$as_echo "#define PNG_INTEL_SSE_OPT 0" >>confdefs.h
-
- ;;
- *)
- # allow enabling hardware optimization on any system:
- case "$host_cpu" in
- arm*|aarch64*)
- enable_arm_neon=yes
-
-$as_echo "#define PNG_ARM_NEON_OPT 0" >>confdefs.h
-
- ;;
- mipsel*|mips64el*)
- enable_mips_msa=yes
-
-$as_echo "#define PNG_MIPS_MSA_OPT 0" >>confdefs.h
-
- ;;
- i?86|x86_64)
- enable_intel_sse=yes
-
-$as_echo "#define PNG_INTEL_SSE_OPT 1" >>confdefs.h
-
- ;;
- powerpc*|ppc64*)
- enable_powerpc_vsx=yes
-
-$as_echo "#define PNG_POWERPC_VSX_OPT 2" >>confdefs.h
-
- ;;
- esac
- ;;
- esac
-fi
-
-
-# ARM
-# ===
-#
-# ARM NEON (SIMD) support.
-
-# Check whether --enable-arm-neon was given.
-if test "${enable_arm_neon+set}" = set; then :
- enableval=$enable_arm_neon; case "$enableval" in
- no|off)
- # disable the default enabling on __ARM_NEON__ systems:
-
-$as_echo "#define PNG_ARM_NEON_OPT 0" >>confdefs.h
-
- # Prevent inclusion of the assembler files below:
- enable_arm_neon=no;;
- check)
-
-$as_echo "#define PNG_ARM_NEON_CHECK_SUPPORTED /**/" >>confdefs.h
-;;
- api)
-
-$as_echo "#define PNG_ARM_NEON_API_SUPPORTED /**/" >>confdefs.h
-;;
- yes|on)
-
-$as_echo "#define PNG_ARM_NEON_OPT 2" >>confdefs.h
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: --enable-arm-neon: please specify 'check' or 'api', if
- you want the optimizations unconditionally pass -mfpu=neon
- to the compiler." >&5
-$as_echo "$as_me: WARNING: --enable-arm-neon: please specify 'check' or 'api', if
- you want the optimizations unconditionally pass -mfpu=neon
- to the compiler." >&2;};;
- *)
- as_fn_error $? "--enable-arm-neon=${enable_arm_neon}: invalid value" "$LINENO" 5
- esac
-fi
-
-
-# Add ARM specific files to all builds where the host_cpu is arm ('arm*') or
-# where ARM optimizations were explicitly requested (this allows a fallback if a
-# future host CPU does not match 'arm*')
-
- if test "$enable_arm_neon" != 'no' &&
- case "$host_cpu" in
- arm*|aarch64*) :;;
- *) test "$enable_arm_neon" != '';;
- esac; then
- PNG_ARM_NEON_TRUE=
- PNG_ARM_NEON_FALSE='#'
-else
- PNG_ARM_NEON_TRUE='#'
- PNG_ARM_NEON_FALSE=
-fi
-
-
-# MIPS
-# ===
-#
-# MIPS MSA (SIMD) support.
-
-# Check whether --enable-mips-msa was given.
-if test "${enable_mips_msa+set}" = set; then :
- enableval=$enable_mips_msa; case "$enableval" in
- no|off)
- # disable the default enabling on __mips_msa systems:
-
-$as_echo "#define PNG_MIPS_MSA_OPT 0" >>confdefs.h
-
- # Prevent inclusion of the assembler files below:
- enable_mips_msa=no;;
- check)
-
-$as_echo "#define PNG_MIPS_MSA_CHECK_SUPPORTED /**/" >>confdefs.h
-;;
- api)
-
-$as_echo "#define PNG_MIPS_MSA_API_SUPPORTED /**/" >>confdefs.h
-;;
- yes|on)
-
-$as_echo "#define PNG_MIPS_MSA_OPT 2" >>confdefs.h
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: --enable-mips-msa: please specify 'check' or 'api', if
- you want the optimizations unconditionally pass '-mmsa -mfp64'
- to the compiler." >&5
-$as_echo "$as_me: WARNING: --enable-mips-msa: please specify 'check' or 'api', if
- you want the optimizations unconditionally pass '-mmsa -mfp64'
- to the compiler." >&2;};;
- *)
- as_fn_error $? "--enable-mips-msa=${enable_mips_msa}: invalid value" "$LINENO" 5
- esac
-fi
-
-
-# Add MIPS specific files to all builds where the host_cpu is mips ('mips*') or
-# where MIPS optimizations were explicitly requested (this allows a fallback if a
-# future host CPU does not match 'mips*')
-
- if test "$enable_mips_msa" != 'no' &&
- case "$host_cpu" in
- mipsel*|mips64el*) :;;
- esac; then
- PNG_MIPS_MSA_TRUE=
- PNG_MIPS_MSA_FALSE='#'
-else
- PNG_MIPS_MSA_TRUE='#'
- PNG_MIPS_MSA_FALSE=
-fi
-
-
-# INTEL
-# =====
-#
-# INTEL SSE (SIMD) support.
-
-# Check whether --enable-intel-sse was given.
-if test "${enable_intel_sse+set}" = set; then :
- enableval=$enable_intel_sse; case "$enableval" in
- no|off)
- # disable the default enabling:
-
-$as_echo "#define PNG_INTEL_SSE_OPT 0" >>confdefs.h
-
- # Prevent inclusion of the assembler files below:
- enable_intel_sse=no;;
- yes|on)
-
-$as_echo "#define PNG_INTEL_SSE_OPT 1" >>confdefs.h
-;;
- *)
- as_fn_error $? "--enable-intel-sse=${enable_intel_sse}: invalid value" "$LINENO" 5
- esac
-fi
-
-
-# Add Intel specific files to all builds where the host_cpu is Intel ('x86*')
-# or where Intel optimizations were explicitly requested (this allows a
-# fallback if a future host CPU does not match 'x86*')
- if test "$enable_intel_sse" != 'no' &&
- case "$host_cpu" in
- i?86|x86_64) :;;
- *) test "$enable_intel_sse" != '';;
- esac; then
- PNG_INTEL_SSE_TRUE=
- PNG_INTEL_SSE_FALSE='#'
-else
- PNG_INTEL_SSE_TRUE='#'
- PNG_INTEL_SSE_FALSE=
-fi
-
-
-# PowerPC
-# ===
-#
-# PowerPC VSX (SIMD) support.
-
-# Check whether --enable-powerpc-vsx was given.
-if test "${enable_powerpc_vsx+set}" = set; then :
- enableval=$enable_powerpc_vsx; case "$enableval" in
- no|off)
- # disable the default enabling on __ppc64__ systems:
-
-$as_echo "#define PNG_POWERPC_VSX_OPT 0" >>confdefs.h
-
- # Prevent inclusion of the platform specific files below:
- enable_powerpc_vsx=no;;
- check)
-
-$as_echo "#define PNG_POWERPC_VSX_CHECK_SUPPORTED /**/" >>confdefs.h
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: --enable-powerpc-vsx Please check contrib/powerpc/README file
- for the list of supported OSes." >&5
-$as_echo "$as_me: WARNING: --enable-powerpc-vsx Please check contrib/powerpc/README file
- for the list of supported OSes." >&2;};;
- api)
-
-$as_echo "#define PNG_POWERPC_VSX_API_SUPPORTED /**/" >>confdefs.h
-;;
- yes|on)
-
-$as_echo "#define PNG_POWERPC_VSX_OPT 2" >>confdefs.h
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: --enable-powerpc-vsx: please specify 'check' or 'api', if
- you want the optimizations unconditionally pass '-maltivec -mvsx'
- or '-mcpu=power8'to the compiler." >&5
-$as_echo "$as_me: WARNING: --enable-powerpc-vsx: please specify 'check' or 'api', if
- you want the optimizations unconditionally pass '-maltivec -mvsx'
- or '-mcpu=power8'to the compiler." >&2;};;
- *)
- as_fn_error $? "--enable-powerpc-vsx=${enable_powerpc_vsx}: invalid value" "$LINENO" 5
- esac
-fi
-
-
-# Add PowerPC specific files to all builds where the host_cpu is powerpc('powerpc*') or
-# where POWERPC optimizations were explicitly requested (this allows a fallback if a
-# future host CPU does not match 'powerpc*')
-
- if test "$enable_powerpc_vsx" != 'no' &&
- case "$host_cpu" in
- powerpc*|ppc64*) :;;
- esac; then
- PNG_POWERPC_VSX_TRUE=
- PNG_POWERPC_VSX_FALSE='#'
-else
- PNG_POWERPC_VSX_TRUE='#'
- PNG_POWERPC_VSX_FALSE=
-fi
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: Extra options for compiler: $PNG_COPTS" >&5
-$as_echo "$as_me: Extra options for compiler: $PNG_COPTS" >&6;}
-
-# Config files, substituting as above
-ac_config_files="$ac_config_files Makefile libpng.pc:libpng.pc.in"
-
-ac_config_files="$ac_config_files libpng-config:libpng-config.in"
-
-
-cat >confcache <<\_ACEOF
-# This file is a shell script that caches the results of configure
-# tests run on this system so they can be shared between configure
-# scripts and configure runs, see configure's option --config-cache.
-# It is not useful on other systems. If it contains results you don't
-# want to keep, you may remove or edit it.
-#
-# config.status only pays attention to the cache file if you give it
-# the --recheck option to rerun configure.
-#
-# `ac_cv_env_foo' variables (set or unset) will be overridden when
-# loading this file, other *unset* `ac_cv_foo' will be assigned the
-# following values.
-
-_ACEOF
-
-# The following way of writing the cache mishandles newlines in values,
-# but we know of no workaround that is simple, portable, and efficient.
-# So, we kill variables containing newlines.
-# Ultrix sh set writes to stderr and can't be redirected directly,
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-(
- for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
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- case $ac_val in #(
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- case $ac_var in #(
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- case $ac_var in #(
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- esac ;;
- esac
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-
- (set) 2>&1 |
- case $as_nl`(ac_space=' '; set) 2>&1` in #(
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-) |
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-
-DEFS=-DHAVE_CONFIG_H
-
-ac_libobjs=
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-
-LTLIBOBJS=$ac_ltlibobjs
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking that generated files are newer than configure" >&5
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-
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-# CDPATH.
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-
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-{
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-{
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-
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-
-
-# as_fn_executable_p FILE
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-
-
-exec 6>&1
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-
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-srcdir='$srcdir'
-INSTALL='$INSTALL'
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-
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
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- ac_optarg=
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- $ac_shift
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- ac_cs_silent=: ;;
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- # This is an error.
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- *) as_fn_append ac_config_targets " $1"
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- esac
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-ac_configure_extra_args=
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- ac_configure_extra_args="$ac_configure_extra_args --silent"
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-_ACEOF
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-_ACEOF
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-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
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-sed_quote_subst='$sed_quote_subst'
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-Xsed='`$ECHO "$Xsed" | $SED "$delay_single_quote_subst"`'
-GREP='`$ECHO "$GREP" | $SED "$delay_single_quote_subst"`'
-EGREP='`$ECHO "$EGREP" | $SED "$delay_single_quote_subst"`'
-FGREP='`$ECHO "$FGREP" | $SED "$delay_single_quote_subst"`'
-SHELL='`$ECHO "$SHELL" | $SED "$delay_single_quote_subst"`'
-ECHO='`$ECHO "$ECHO" | $SED "$delay_single_quote_subst"`'
-LD='`$ECHO "$LD" | $SED "$delay_single_quote_subst"`'
-macro_version='`$ECHO "$macro_version" | $SED "$delay_single_quote_subst"`'
-macro_revision='`$ECHO "$macro_revision" | $SED "$delay_single_quote_subst"`'
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-DLLTOOL='`$ECHO "$DLLTOOL" | $SED "$delay_single_quote_subst"`'
-OBJDUMP='`$ECHO "$OBJDUMP" | $SED "$delay_single_quote_subst"`'
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-enable_static='`$ECHO "$enable_static" | $SED "$delay_single_quote_subst"`'
-pic_mode='`$ECHO "$pic_mode" | $SED "$delay_single_quote_subst"`'
-enable_fast_install='`$ECHO "$enable_fast_install" | $SED "$delay_single_quote_subst"`'
-shared_archive_member_spec='`$ECHO "$shared_archive_member_spec" | $SED "$delay_single_quote_subst"`'
-PATH_SEPARATOR='`$ECHO "$PATH_SEPARATOR" | $SED "$delay_single_quote_subst"`'
-host_alias='`$ECHO "$host_alias" | $SED "$delay_single_quote_subst"`'
-host='`$ECHO "$host" | $SED "$delay_single_quote_subst"`'
-host_os='`$ECHO "$host_os" | $SED "$delay_single_quote_subst"`'
-build_alias='`$ECHO "$build_alias" | $SED "$delay_single_quote_subst"`'
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-build_os='`$ECHO "$build_os" | $SED "$delay_single_quote_subst"`'
-NM='`$ECHO "$NM" | $SED "$delay_single_quote_subst"`'
-LN_S='`$ECHO "$LN_S" | $SED "$delay_single_quote_subst"`'
-max_cmd_len='`$ECHO "$max_cmd_len" | $SED "$delay_single_quote_subst"`'
-ac_objext='`$ECHO "$ac_objext" | $SED "$delay_single_quote_subst"`'
-exeext='`$ECHO "$exeext" | $SED "$delay_single_quote_subst"`'
-lt_unset='`$ECHO "$lt_unset" | $SED "$delay_single_quote_subst"`'
-lt_SP2NL='`$ECHO "$lt_SP2NL" | $SED "$delay_single_quote_subst"`'
-lt_NL2SP='`$ECHO "$lt_NL2SP" | $SED "$delay_single_quote_subst"`'
-lt_cv_to_host_file_cmd='`$ECHO "$lt_cv_to_host_file_cmd" | $SED "$delay_single_quote_subst"`'
-lt_cv_to_tool_file_cmd='`$ECHO "$lt_cv_to_tool_file_cmd" | $SED "$delay_single_quote_subst"`'
-reload_flag='`$ECHO "$reload_flag" | $SED "$delay_single_quote_subst"`'
-reload_cmds='`$ECHO "$reload_cmds" | $SED "$delay_single_quote_subst"`'
-deplibs_check_method='`$ECHO "$deplibs_check_method" | $SED "$delay_single_quote_subst"`'
-file_magic_cmd='`$ECHO "$file_magic_cmd" | $SED "$delay_single_quote_subst"`'
-file_magic_glob='`$ECHO "$file_magic_glob" | $SED "$delay_single_quote_subst"`'
-want_nocaseglob='`$ECHO "$want_nocaseglob" | $SED "$delay_single_quote_subst"`'
-sharedlib_from_linklib_cmd='`$ECHO "$sharedlib_from_linklib_cmd" | $SED "$delay_single_quote_subst"`'
-AR='`$ECHO "$AR" | $SED "$delay_single_quote_subst"`'
-AR_FLAGS='`$ECHO "$AR_FLAGS" | $SED "$delay_single_quote_subst"`'
-archiver_list_spec='`$ECHO "$archiver_list_spec" | $SED "$delay_single_quote_subst"`'
-STRIP='`$ECHO "$STRIP" | $SED "$delay_single_quote_subst"`'
-RANLIB='`$ECHO "$RANLIB" | $SED "$delay_single_quote_subst"`'
-old_postinstall_cmds='`$ECHO "$old_postinstall_cmds" | $SED "$delay_single_quote_subst"`'
-old_postuninstall_cmds='`$ECHO "$old_postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
-old_archive_cmds='`$ECHO "$old_archive_cmds" | $SED "$delay_single_quote_subst"`'
-lock_old_archive_extraction='`$ECHO "$lock_old_archive_extraction" | $SED "$delay_single_quote_subst"`'
-CC='`$ECHO "$CC" | $SED "$delay_single_quote_subst"`'
-CFLAGS='`$ECHO "$CFLAGS" | $SED "$delay_single_quote_subst"`'
-compiler='`$ECHO "$compiler" | $SED "$delay_single_quote_subst"`'
-GCC='`$ECHO "$GCC" | $SED "$delay_single_quote_subst"`'
-lt_cv_sys_global_symbol_pipe='`$ECHO "$lt_cv_sys_global_symbol_pipe" | $SED "$delay_single_quote_subst"`'
-lt_cv_sys_global_symbol_to_cdecl='`$ECHO "$lt_cv_sys_global_symbol_to_cdecl" | $SED "$delay_single_quote_subst"`'
-lt_cv_sys_global_symbol_to_import='`$ECHO "$lt_cv_sys_global_symbol_to_import" | $SED "$delay_single_quote_subst"`'
-lt_cv_sys_global_symbol_to_c_name_address='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address" | $SED "$delay_single_quote_subst"`'
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address_lib_prefix" | $SED "$delay_single_quote_subst"`'
-lt_cv_nm_interface='`$ECHO "$lt_cv_nm_interface" | $SED "$delay_single_quote_subst"`'
-nm_file_list_spec='`$ECHO "$nm_file_list_spec" | $SED "$delay_single_quote_subst"`'
-lt_sysroot='`$ECHO "$lt_sysroot" | $SED "$delay_single_quote_subst"`'
-lt_cv_truncate_bin='`$ECHO "$lt_cv_truncate_bin" | $SED "$delay_single_quote_subst"`'
-objdir='`$ECHO "$objdir" | $SED "$delay_single_quote_subst"`'
-MAGIC_CMD='`$ECHO "$MAGIC_CMD" | $SED "$delay_single_quote_subst"`'
-lt_prog_compiler_no_builtin_flag='`$ECHO "$lt_prog_compiler_no_builtin_flag" | $SED "$delay_single_quote_subst"`'
-lt_prog_compiler_pic='`$ECHO "$lt_prog_compiler_pic" | $SED "$delay_single_quote_subst"`'
-lt_prog_compiler_wl='`$ECHO "$lt_prog_compiler_wl" | $SED "$delay_single_quote_subst"`'
-lt_prog_compiler_static='`$ECHO "$lt_prog_compiler_static" | $SED "$delay_single_quote_subst"`'
-lt_cv_prog_compiler_c_o='`$ECHO "$lt_cv_prog_compiler_c_o" | $SED "$delay_single_quote_subst"`'
-need_locks='`$ECHO "$need_locks" | $SED "$delay_single_quote_subst"`'
-MANIFEST_TOOL='`$ECHO "$MANIFEST_TOOL" | $SED "$delay_single_quote_subst"`'
-DSYMUTIL='`$ECHO "$DSYMUTIL" | $SED "$delay_single_quote_subst"`'
-NMEDIT='`$ECHO "$NMEDIT" | $SED "$delay_single_quote_subst"`'
-LIPO='`$ECHO "$LIPO" | $SED "$delay_single_quote_subst"`'
-OTOOL='`$ECHO "$OTOOL" | $SED "$delay_single_quote_subst"`'
-OTOOL64='`$ECHO "$OTOOL64" | $SED "$delay_single_quote_subst"`'
-libext='`$ECHO "$libext" | $SED "$delay_single_quote_subst"`'
-shrext_cmds='`$ECHO "$shrext_cmds" | $SED "$delay_single_quote_subst"`'
-extract_expsyms_cmds='`$ECHO "$extract_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
-archive_cmds_need_lc='`$ECHO "$archive_cmds_need_lc" | $SED "$delay_single_quote_subst"`'
-enable_shared_with_static_runtimes='`$ECHO "$enable_shared_with_static_runtimes" | $SED "$delay_single_quote_subst"`'
-export_dynamic_flag_spec='`$ECHO "$export_dynamic_flag_spec" | $SED "$delay_single_quote_subst"`'
-whole_archive_flag_spec='`$ECHO "$whole_archive_flag_spec" | $SED "$delay_single_quote_subst"`'
-compiler_needs_object='`$ECHO "$compiler_needs_object" | $SED "$delay_single_quote_subst"`'
-old_archive_from_new_cmds='`$ECHO "$old_archive_from_new_cmds" | $SED "$delay_single_quote_subst"`'
-old_archive_from_expsyms_cmds='`$ECHO "$old_archive_from_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
-archive_cmds='`$ECHO "$archive_cmds" | $SED "$delay_single_quote_subst"`'
-archive_expsym_cmds='`$ECHO "$archive_expsym_cmds" | $SED "$delay_single_quote_subst"`'
-module_cmds='`$ECHO "$module_cmds" | $SED "$delay_single_quote_subst"`'
-module_expsym_cmds='`$ECHO "$module_expsym_cmds" | $SED "$delay_single_quote_subst"`'
-with_gnu_ld='`$ECHO "$with_gnu_ld" | $SED "$delay_single_quote_subst"`'
-allow_undefined_flag='`$ECHO "$allow_undefined_flag" | $SED "$delay_single_quote_subst"`'
-no_undefined_flag='`$ECHO "$no_undefined_flag" | $SED "$delay_single_quote_subst"`'
-hardcode_libdir_flag_spec='`$ECHO "$hardcode_libdir_flag_spec" | $SED "$delay_single_quote_subst"`'
-hardcode_libdir_separator='`$ECHO "$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`'
-hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`'
-hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`'
-hardcode_minus_L='`$ECHO "$hardcode_minus_L" | $SED "$delay_single_quote_subst"`'
-hardcode_shlibpath_var='`$ECHO "$hardcode_shlibpath_var" | $SED "$delay_single_quote_subst"`'
-hardcode_automatic='`$ECHO "$hardcode_automatic" | $SED "$delay_single_quote_subst"`'
-inherit_rpath='`$ECHO "$inherit_rpath" | $SED "$delay_single_quote_subst"`'
-link_all_deplibs='`$ECHO "$link_all_deplibs" | $SED "$delay_single_quote_subst"`'
-always_export_symbols='`$ECHO "$always_export_symbols" | $SED "$delay_single_quote_subst"`'
-export_symbols_cmds='`$ECHO "$export_symbols_cmds" | $SED "$delay_single_quote_subst"`'
-exclude_expsyms='`$ECHO "$exclude_expsyms" | $SED "$delay_single_quote_subst"`'
-include_expsyms='`$ECHO "$include_expsyms" | $SED "$delay_single_quote_subst"`'
-prelink_cmds='`$ECHO "$prelink_cmds" | $SED "$delay_single_quote_subst"`'
-postlink_cmds='`$ECHO "$postlink_cmds" | $SED "$delay_single_quote_subst"`'
-file_list_spec='`$ECHO "$file_list_spec" | $SED "$delay_single_quote_subst"`'
-variables_saved_for_relink='`$ECHO "$variables_saved_for_relink" | $SED "$delay_single_quote_subst"`'
-need_lib_prefix='`$ECHO "$need_lib_prefix" | $SED "$delay_single_quote_subst"`'
-need_version='`$ECHO "$need_version" | $SED "$delay_single_quote_subst"`'
-version_type='`$ECHO "$version_type" | $SED "$delay_single_quote_subst"`'
-runpath_var='`$ECHO "$runpath_var" | $SED "$delay_single_quote_subst"`'
-shlibpath_var='`$ECHO "$shlibpath_var" | $SED "$delay_single_quote_subst"`'
-shlibpath_overrides_runpath='`$ECHO "$shlibpath_overrides_runpath" | $SED "$delay_single_quote_subst"`'
-libname_spec='`$ECHO "$libname_spec" | $SED "$delay_single_quote_subst"`'
-library_names_spec='`$ECHO "$library_names_spec" | $SED "$delay_single_quote_subst"`'
-soname_spec='`$ECHO "$soname_spec" | $SED "$delay_single_quote_subst"`'
-install_override_mode='`$ECHO "$install_override_mode" | $SED "$delay_single_quote_subst"`'
-postinstall_cmds='`$ECHO "$postinstall_cmds" | $SED "$delay_single_quote_subst"`'
-postuninstall_cmds='`$ECHO "$postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
-finish_cmds='`$ECHO "$finish_cmds" | $SED "$delay_single_quote_subst"`'
-finish_eval='`$ECHO "$finish_eval" | $SED "$delay_single_quote_subst"`'
-hardcode_into_libs='`$ECHO "$hardcode_into_libs" | $SED "$delay_single_quote_subst"`'
-sys_lib_search_path_spec='`$ECHO "$sys_lib_search_path_spec" | $SED "$delay_single_quote_subst"`'
-configure_time_dlsearch_path='`$ECHO "$configure_time_dlsearch_path" | $SED "$delay_single_quote_subst"`'
-configure_time_lt_sys_library_path='`$ECHO "$configure_time_lt_sys_library_path" | $SED "$delay_single_quote_subst"`'
-hardcode_action='`$ECHO "$hardcode_action" | $SED "$delay_single_quote_subst"`'
-enable_dlopen='`$ECHO "$enable_dlopen" | $SED "$delay_single_quote_subst"`'
-enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_subst"`'
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-old_striplib='`$ECHO "$old_striplib" | $SED "$delay_single_quote_subst"`'
-striplib='`$ECHO "$striplib" | $SED "$delay_single_quote_subst"`'
-
-LTCC='$LTCC'
-LTCFLAGS='$LTCFLAGS'
-compiler='$compiler_DEFAULT'
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
- eval 'cat <<_LTECHO_EOF
-\$1
-_LTECHO_EOF'
-}
-
-# Quote evaled strings.
-for var in SED \
-GREP \
-EGREP \
-FGREP \
-SHELL \
-ECHO \
-LD \
-AS \
-DLLTOOL \
-OBJDUMP \
-PATH_SEPARATOR \
-NM \
-LN_S \
-lt_SP2NL \
-lt_NL2SP \
-reload_flag \
-deplibs_check_method \
-file_magic_cmd \
-file_magic_glob \
-want_nocaseglob \
-sharedlib_from_linklib_cmd \
-AR \
-AR_FLAGS \
-archiver_list_spec \
-STRIP \
-RANLIB \
-CC \
-CFLAGS \
-compiler \
-lt_cv_sys_global_symbol_pipe \
-lt_cv_sys_global_symbol_to_cdecl \
-lt_cv_sys_global_symbol_to_import \
-lt_cv_sys_global_symbol_to_c_name_address \
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \
-lt_cv_nm_interface \
-nm_file_list_spec \
-lt_cv_truncate_bin \
-lt_prog_compiler_no_builtin_flag \
-lt_prog_compiler_pic \
-lt_prog_compiler_wl \
-lt_prog_compiler_static \
-lt_cv_prog_compiler_c_o \
-need_locks \
-MANIFEST_TOOL \
-DSYMUTIL \
-NMEDIT \
-LIPO \
-OTOOL \
-OTOOL64 \
-shrext_cmds \
-export_dynamic_flag_spec \
-whole_archive_flag_spec \
-compiler_needs_object \
-with_gnu_ld \
-allow_undefined_flag \
-no_undefined_flag \
-hardcode_libdir_flag_spec \
-hardcode_libdir_separator \
-exclude_expsyms \
-include_expsyms \
-file_list_spec \
-variables_saved_for_relink \
-libname_spec \
-library_names_spec \
-soname_spec \
-install_override_mode \
-finish_eval \
-old_striplib \
-striplib; do
- case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
- *[\\\\\\\`\\"\\\$]*)
- eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
- ;;
- *)
- eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
- ;;
- esac
-done
-
-# Double-quote double-evaled strings.
-for var in reload_cmds \
-old_postinstall_cmds \
-old_postuninstall_cmds \
-old_archive_cmds \
-extract_expsyms_cmds \
-old_archive_from_new_cmds \
-old_archive_from_expsyms_cmds \
-archive_cmds \
-archive_expsym_cmds \
-module_cmds \
-module_expsym_cmds \
-export_symbols_cmds \
-prelink_cmds \
-postlink_cmds \
-postinstall_cmds \
-postuninstall_cmds \
-finish_cmds \
-sys_lib_search_path_spec \
-configure_time_dlsearch_path \
-configure_time_lt_sys_library_path; do
- case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
- *[\\\\\\\`\\"\\\$]*)
- eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
- ;;
- *)
- eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
- ;;
- esac
-done
-
-ac_aux_dir='$ac_aux_dir'
-
-# See if we are running on zsh, and set the options that allow our
-# commands through without removal of \ escapes INIT.
-if test -n "\${ZSH_VERSION+set}"; then
- setopt NO_GLOB_SUBST
-fi
-
-
- PACKAGE='$PACKAGE'
- VERSION='$VERSION'
- RM='$RM'
- ofile='$ofile'
-
-
-
-
-_ACEOF
-
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-
-# Handling of arguments.
-for ac_config_target in $ac_config_targets
-do
- case $ac_config_target in
- "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
- "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
- "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;;
- "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
- "libpng.pc") CONFIG_FILES="$CONFIG_FILES libpng.pc:libpng.pc.in" ;;
- "libpng-config") CONFIG_FILES="$CONFIG_FILES libpng-config:libpng-config.in" ;;
-
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-{
- case x$2 in
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- ;;
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- ;;
- *)
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- esac
-}
-
-
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-{
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- esac
- done
- func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
-}
-
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-if test set != "${COLLECT_NAMES+set}"; then
- COLLECT_NAMES=
- export COLLECT_NAMES
-fi
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- ;;
- esac
-
-
-ltmain=$ac_aux_dir/ltmain.sh
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- || (rm -f "$cfgfile"; exit 1)
-
- mv -f "$cfgfile" "$ofile" ||
- (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
- chmod +x "$ofile"
-
- ;;
- "libpng-config":F) chmod +x libpng-config ;;
-
- esac
-done # for ac_tag
-
-
-as_fn_exit 0
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-test $ac_write_fail = 0 ||
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-
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-# need to make the FD available again.
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- ac_cs_success=:
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- ac_config_status_args="$ac_config_status_args --quiet"
- exec 5>/dev/null
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- # Use ||, not &&, to avoid exiting from the if with $? = 1, which
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- $ac_cs_success || as_fn_exit 1
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-if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
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-fi
-
diff --git a/3rdparty/libpng/libpng-1.6.37/configure.ac b/3rdparty/libpng/libpng-1.6.37/configure.ac
deleted file mode 100644
index 52dba94..0000000
--- a/3rdparty/libpng/libpng-1.6.37/configure.ac
+++ /dev/null
@@ -1,532 +0,0 @@
-# configure.ac
-
-# Copyright (c) 2018 Cosmin Truta
-# Copyright (c) 2004-2016 Glenn Randers-Pehrson
-
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-dnl Process this file with autoconf to produce a configure script.
-dnl
-dnl Minor upgrades (compatible ABI): increment the package version
-dnl (third field in two places below) and set the PNGLIB_RELEASE
-dnl variable.
-dnl
-dnl Major upgrades (incompatible ABI): increment the package major
-dnl version (second field, or first if desired), set the minor
-dnl to 0, set PNGLIB_MAJOR below *and* follow the instructions in
-dnl Makefile.am to upgrade the package name.
-
-dnl This is here to prevent earlier autoconf from being used, it
-dnl should not be necessary to regenerate configure if the time
-dnl stamps are correct
-AC_PREREQ([2.68])
-
-dnl Version number stuff here:
-
-AC_INIT([libpng],[1.6.37],[png-mng-implement@lists.sourceforge.net])
-AC_CONFIG_MACRO_DIR([scripts])
-
-# libpng does not follow GNU file name conventions (hence 'foreign')
-# color-tests requires automake 1.11 or later
-# silent-rules requires automake 1.11 or later
-# dist-xz requires automake 1.11 or later
-# 1.12.2 fixes a security issue in 1.11.2 and 1.12.1
-# 1.13 is required for parallel tests
-AM_INIT_AUTOMAKE([1.13 foreign dist-xz color-tests silent-rules subdir-objects])
-# The following line causes --disable-maintainer-mode to be the default to
-# configure. This is necessary because libpng distributions cannot rely on the
-# time stamps of the autotools generated files being correct
-AM_MAINTAINER_MODE
-
-dnl configure.ac and Makefile.am expect automake 1.11.2 or a compatible later
-dnl version; aclocal.m4 will generate a failure if you use a prior version of
-dnl automake, so the following is not necessary (and is not defined anyway):
-dnl AM_PREREQ([1.11.2])
-dnl stop configure from automagically running automake
-
-PNGLIB_VERSION=1.6.37
-PNGLIB_MAJOR=1
-PNGLIB_MINOR=6
-PNGLIB_RELEASE=37
-
-dnl End of version number stuff
-
-AC_CONFIG_SRCDIR([pngget.c])
-AC_CONFIG_HEADERS([config.h])
-
-# Checks for programs.
-AC_LANG([C])
-AC_PROG_CC
-AM_PROG_AS
-LT_PATH_LD
-AC_PROG_CPP
-AC_PROG_AWK
-AC_PROG_INSTALL
-AC_PROG_LN_S
-AC_PROG_MAKE_SET
-
-dnl libtool/libtoolize; version 2.4.2 is the tested version. This or any
-dnl compatible later version may be used
-LT_INIT([win32-dll])
-LT_PREREQ([2.4.2])
-
-# Some awks crash when confronted with pnglibconf.dfa, do a test run now
-# to make sure this doesn't happen
-AC_MSG_CHECKING([that AWK works])
-if ${AWK} -f ${srcdir}/scripts/options.awk out="/dev/null" version=search\
- ${srcdir}/pngconf.h ${srcdir}/scripts/pnglibconf.dfa\
- ${srcdir}/pngusr.dfa 1>&2
-then
- AC_MSG_RESULT([ok])
-else
- AC_MSG_FAILURE([failed], 1)
-fi
-
-# This is a remnant of the old cc -E validation, where it may have been
-# necessary to use a different preprocessor for .dfn files
-DFNCPP="$CPP"
-AC_SUBST(DFNCPP)
-
-# -Werror cannot be passed to GCC in CFLAGS because configure will fail (it
-# checks the compiler with a program that generates a warning), add the
-# following option to deal with this
-AC_ARG_VAR(PNG_COPTS,
- [additional flags for the C compiler, use this for options that would]
- [cause configure itself to fail])
-AC_ARG_ENABLE(werror,
- AS_HELP_STRING([[[--enable-werror[=OPT]]]],
- [Pass -Werror or the given argument to the compiler if it is supported]),
- [test "$enable_werror" = "yes" && enable_werror="-Werror"
- if test "$enable_werror" != "no"; then
- sav_CFLAGS="$CFLAGS"
- CFLAGS="$enable_werror $CFLAGS"
- AC_MSG_CHECKING([if the compiler allows $enable_werror])
- AC_COMPILE_IFELSE(
- [AC_LANG_SOURCE([
- [int main(int argc, char **argv){]
- [return argv[argc-1][0];]
- [}]])],
- AC_MSG_RESULT(yes)
- PNG_COPTS="$PNG_COPTS $enable_werror",
- AC_MSG_RESULT(no))
- CFLAGS="$sav_CFLAGS"
- fi],)
-
-# For GCC 5 the default mode for C is -std=gnu11 instead of -std=gnu89
-# In pngpriv.h we request just the POSIX 1003.1 and C89 APIs by defining _POSIX_SOURCE to 1
-# This is incompatible with the new default mode, so we test for that and force the
-# "-std=c89" compiler option:
-AC_MSG_CHECKING([if we need to force back C standard to C89])
-AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM([
- [#define _POSIX_SOURCE 1]
- [#include <stdio.h>]
- ])],
- AC_MSG_RESULT(no),[
- if test "x$GCC" != "xyes"; then
- AC_MSG_ERROR(
- [Forcing back to C89 is required but the flags are only known for GCC])
- fi
- AC_MSG_RESULT(yes)
- CFLAGS="$CFLAGS -std=c89"
-])
-
-# Checks for header files.
-AC_HEADER_STDC
-
-# Checks for typedefs, structures, and compiler characteristics.
-AC_C_CONST
-AC_TYPE_SIZE_T
-AC_STRUCT_TM
-AC_C_RESTRICT
-
-# Checks for library functions.
-AC_FUNC_STRTOD
-AC_CHECK_FUNCS([pow], , AC_CHECK_LIB(m, pow, , AC_MSG_ERROR(cannot find pow)) )
-
-# Some later POSIX 1003.1 functions are required for test programs, failure here
-# is soft (the corresponding test program is not built).
-AC_CHECK_FUNC([clock_gettime],,[AC_MSG_WARN([not building timepng])])
-AM_CONDITIONAL([HAVE_CLOCK_GETTIME], [test "$ac_cv_func_clock_gettime" = "yes"])
-
-AC_ARG_WITH(zlib-prefix,
- AS_HELP_STRING([[[--with-zlib-prefix]]],
- [prefix that may have been used in installed zlib]),
- [ZPREFIX=${withval}],
- [ZPREFIX='z_'])
-AC_CHECK_LIB(z, zlibVersion, ,
- AC_CHECK_LIB(z, ${ZPREFIX}zlibVersion, , AC_MSG_ERROR(zlib not installed)))
-
-# The following is for pngvalid, to ensure it catches FP errors even on
-# platforms that don't enable FP exceptions, the function appears in the math
-# library (typically), it's not an error if it is not found.
-AC_CHECK_LIB([m], [feenableexcept])
-AC_CHECK_FUNCS([feenableexcept])
-
-AC_MSG_CHECKING([if using Solaris linker])
-SLD=`$LD --version 2>&1 | grep Solaris`
-if test "$SLD"; then
- have_solaris_ld=yes
- AC_MSG_RESULT(yes)
-else
- have_solaris_ld=no
- AC_MSG_RESULT(no)
-fi
-AM_CONDITIONAL(HAVE_SOLARIS_LD, test "$have_solaris_ld" = "yes")
-
-AC_MSG_CHECKING([if libraries can be versioned])
-# Special case for PE/COFF platforms: ld reports
-# support for version-script, but doesn't actually
-# DO anything with it.
-case $host in
-*cygwin* | *mingw32* | *interix* )
- have_ld_version_script=no
- AC_MSG_RESULT(no)
-;;
-* )
-
-if test "$have_solaris_ld" = "yes"; then
- GLD=`$LD --help < /dev/null 2>&1 | grep 'M mapfile'`
-else
- GLD=`$LD --help < /dev/null 2>/dev/null | grep version-script`
-fi
-
-if test "$GLD"; then
- have_ld_version_script=yes
- AC_MSG_RESULT(yes)
-else
- have_ld_version_script=no
- AC_MSG_RESULT(no)
- AC_MSG_WARN(*** You have not enabled versioned symbols.)
-fi
-;;
-esac
-
-AM_CONDITIONAL(HAVE_LD_VERSION_SCRIPT, test "$have_ld_version_script" = "yes")
-
-if test "$have_ld_version_script" = "yes"; then
- AC_MSG_CHECKING([for symbol prefix])
- SYMBOL_PREFIX=`echo "PREFIX=__USER_LABEL_PREFIX__" \
- | ${CPP-${CC-gcc} -E} - 2>&1 \
- | ${EGREP-grep} "^PREFIX=" \
- | ${SED-sed} -e "s:^PREFIX=::" -e "s:__USER_LABEL_PREFIX__::"`
- AC_SUBST(SYMBOL_PREFIX)
- AC_MSG_RESULT($SYMBOL_PREFIX)
-fi
-
-# Substitutions for .in files
-AC_SUBST(PNGLIB_VERSION)
-AC_SUBST(PNGLIB_MAJOR)
-AC_SUBST(PNGLIB_MINOR)
-AC_SUBST(PNGLIB_RELEASE)
-
-# Additional arguments (and substitutions)
-# Allow the pkg-config directory to be set
-AC_ARG_WITH(pkgconfigdir,
- AS_HELP_STRING([[[--with-pkgconfigdir]]],
- [Use the specified pkgconfig dir (default is libdir/pkgconfig)]),
- [pkgconfigdir=${withval}],
- [pkgconfigdir='${libdir}/pkgconfig'])
-
-AC_SUBST([pkgconfigdir])
-AC_MSG_NOTICE([[pkgconfig directory is ${pkgconfigdir}]])
-
-# Make the *-config binary config scripts optional
-AC_ARG_WITH(binconfigs,
- AS_HELP_STRING([[[--with-binconfigs]]],
- [Generate shell libpng-config scripts as well as pkg-config data]
- [@<:@default=yes@:>@]),
- [if test "${withval}" = no; then
- binconfigs=
- AC_MSG_NOTICE([[libpng-config scripts will not be built]])
- else
- binconfigs='${binconfigs}'
- fi],
- [binconfigs='${binconfigs}'])
-AC_SUBST([binconfigs])
-
-# Support for prefixes to the API function names; this will generate defines
-# at the start of the build to rename exported library functions
-AC_ARG_WITH(libpng-prefix,
- AS_HELP_STRING([[[--with-libpng-prefix]]],
- [prefix libpng exported function (API) names with the given value]),
- [if test "${withval:-no}" != "no"; then
- AC_SUBST([PNG_PREFIX], [${withval}])
- fi])
-AM_CONDITIONAL([DO_PNG_PREFIX], [test "${with_libpng_prefix:-no}" != "no"])
-
-# Control over what links are made for installed files. Versioned files are
-# always installed, when the following options are turned on corresponding
-# unversioned links are also created (normally as symbolic links):
-AC_ARG_ENABLE([unversioned-links],
- AS_HELP_STRING([[[--enable-unversioned-links]]],
- [Installed libpng header files are placed in a versioned subdirectory]
- [and installed libpng library (including DLL) files are versioned.]
- [If this option is enabled unversioned links will be created pointing to]
- [the corresponding installed files. If you use libpng.pc or]
- [libpng-config for all builds you do not need these links, but if you]
- [compile programs directly they will typically #include <png.h> and]
- [link with -lpng; in that case you need the links.]
- [The links can be installed manually using 'make install-header-links']
- [and 'make install-library-links' and can be removed using the]
- [corresponding uninstall- targets. If you do enable this option every]
- [libpng 'make install' will recreate the links to point to the just]
- [installed version of libpng. The default is to create the links;]
- [use --disable-unversioned-links to change this]))
-
-# The AM_CONDITIONAL test is written so that the default is enabled;
-# --disable-unversioned-links must be given to turn the option off.
-AM_CONDITIONAL([DO_INSTALL_LINKS],[test "$enable_unversioned_links" != "no"])
-
-AC_ARG_ENABLE([unversioned-libpng-pc],
- AS_HELP_STRING([[[--enable-unversioned-libpng-pc]]],
- [Install the configuration file 'libpng.pc' as a link to the versioned]
- [version. This is done by default - use --disable-unversioned-libpng-pc]
- [to change this.]))
-AM_CONDITIONAL([DO_INSTALL_LIBPNG_PC],
- [test "$enable_unversioned_libpng_pc" != "no"])
-
-AC_ARG_ENABLE([unversioned-libpng-config],
- AS_HELP_STRING([[[--enable-unversioned-libpng-config]]],
- [Install the configuration file 'libpng-config' as a link to the]
- [versioned version. This is done by default - use]
- [--disable-unversioned-libpng-config to change this.]))
-AM_CONDITIONAL([DO_INSTALL_LIBPNG_CONFIG],
- [test "$enable_unversioned_libpng_config" != "no"])
-
-# HOST SPECIFIC OPTIONS
-# =====================
-#
-# DEFAULT
-# =======
-#
-AC_ARG_ENABLE([hardware-optimizations],
- AS_HELP_STRING([[[--enable-hardware-optimizations]]],
- [Enable hardware optimizations: =no/off, yes/on:]),
- [case "$enableval" in
- no|off)
- # disable hardware optimization on all systems:
- enable_arm_neon=no
- AC_DEFINE([PNG_ARM_NEON_OPT], [0],
- [Disable ARM_NEON optimizations])
- enable_mips_msa=no
- AC_DEFINE([PNG_MIPS_MSA_OPT], [0],
- [Disable MIPS_MSA optimizations])
- enable_powerpc_vsx=no
- AC_DEFINE([PNG_POWERPC_VSX_OPT], [0],
- [Disable POWERPC VSX optimizations])
- enable_intel_sse=no
- AC_DEFINE([PNG_INTEL_SSE_OPT], [0],
- [Disable INTEL_SSE optimizations])
- ;;
- *)
- # allow enabling hardware optimization on any system:
- case "$host_cpu" in
- arm*|aarch64*)
- enable_arm_neon=yes
- AC_DEFINE([PNG_ARM_NEON_OPT], [0],
- [Enable ARM_NEON optimizations])
- ;;
- mipsel*|mips64el*)
- enable_mips_msa=yes
- AC_DEFINE([PNG_MIPS_MSA_OPT], [0],
- [Enable MIPS_MSA optimizations])
- ;;
- i?86|x86_64)
- enable_intel_sse=yes
- AC_DEFINE([PNG_INTEL_SSE_OPT], [1],
- [Enable Intel SSE optimizations])
- ;;
- powerpc*|ppc64*)
- enable_powerpc_vsx=yes
- AC_DEFINE([PNG_POWERPC_VSX_OPT], [2],
- [Enable POWERPC VSX optimizations])
- ;;
- esac
- ;;
- esac])
-
-# ARM
-# ===
-#
-# ARM NEON (SIMD) support.
-
-AC_ARG_ENABLE([arm-neon],
- AS_HELP_STRING([[[--enable-arm-neon]]],
- [Enable ARM NEON optimizations: =no/off, check, api, yes/on:]
- [no/off: disable the optimizations; check: use internal checking code]
- [(deprecated and poorly supported); api: disable by default, enable by]
- [a call to png_set_option; yes/on: turn on unconditionally.]
- [If not specified: determined by the compiler.]),
- [case "$enableval" in
- no|off)
- # disable the default enabling on __ARM_NEON__ systems:
- AC_DEFINE([PNG_ARM_NEON_OPT], [0],
- [Disable ARM Neon optimizations])
- # Prevent inclusion of the assembler files below:
- enable_arm_neon=no;;
- check)
- AC_DEFINE([PNG_ARM_NEON_CHECK_SUPPORTED], [],
- [Check for ARM Neon support at run-time]);;
- api)
- AC_DEFINE([PNG_ARM_NEON_API_SUPPORTED], [],
- [Turn on ARM Neon optimizations at run-time]);;
- yes|on)
- AC_DEFINE([PNG_ARM_NEON_OPT], [2],
- [Enable ARM Neon optimizations])
- AC_MSG_WARN([--enable-arm-neon: please specify 'check' or 'api', if]
- [you want the optimizations unconditionally pass -mfpu=neon]
- [to the compiler.]);;
- *)
- AC_MSG_ERROR([--enable-arm-neon=${enable_arm_neon}: invalid value])
- esac])
-
-# Add ARM specific files to all builds where the host_cpu is arm ('arm*') or
-# where ARM optimizations were explicitly requested (this allows a fallback if a
-# future host CPU does not match 'arm*')
-
-AM_CONDITIONAL([PNG_ARM_NEON],
- [test "$enable_arm_neon" != 'no' &&
- case "$host_cpu" in
- arm*|aarch64*) :;;
- *) test "$enable_arm_neon" != '';;
- esac])
-
-# MIPS
-# ===
-#
-# MIPS MSA (SIMD) support.
-
-AC_ARG_ENABLE([mips-msa],
- AS_HELP_STRING([[[--enable-mips-msa]]],
- [Enable MIPS MSA optimizations: =no/off, check, api, yes/on:]
- [no/off: disable the optimizations; check: use internal checking code]
- [(deprecated and poorly supported); api: disable by default, enable by]
- [a call to png_set_option; yes/on: turn on unconditionally.]
- [If not specified: determined by the compiler.]),
- [case "$enableval" in
- no|off)
- # disable the default enabling on __mips_msa systems:
- AC_DEFINE([PNG_MIPS_MSA_OPT], [0],
- [Disable MIPS MSA optimizations])
- # Prevent inclusion of the assembler files below:
- enable_mips_msa=no;;
- check)
- AC_DEFINE([PNG_MIPS_MSA_CHECK_SUPPORTED], [],
- [Check for MIPS MSA support at run-time]);;
- api)
- AC_DEFINE([PNG_MIPS_MSA_API_SUPPORTED], [],
- [Turn on MIPS MSA optimizations at run-time]);;
- yes|on)
- AC_DEFINE([PNG_MIPS_MSA_OPT], [2],
- [Enable MIPS MSA optimizations])
- AC_MSG_WARN([--enable-mips-msa: please specify 'check' or 'api', if]
- [you want the optimizations unconditionally pass '-mmsa -mfp64']
- [to the compiler.]);;
- *)
- AC_MSG_ERROR([--enable-mips-msa=${enable_mips_msa}: invalid value])
- esac])
-
-# Add MIPS specific files to all builds where the host_cpu is mips ('mips*') or
-# where MIPS optimizations were explicitly requested (this allows a fallback if a
-# future host CPU does not match 'mips*')
-
-AM_CONDITIONAL([PNG_MIPS_MSA],
- [test "$enable_mips_msa" != 'no' &&
- case "$host_cpu" in
- mipsel*|mips64el*) :;;
- esac])
-
-# INTEL
-# =====
-#
-# INTEL SSE (SIMD) support.
-
-AC_ARG_ENABLE([intel-sse],
- AS_HELP_STRING([[[--enable-intel-sse]]],
- [Enable Intel SSE optimizations: =no/off, yes/on:]
- [no/off: disable the optimizations;]
- [yes/on: enable the optimizations.]
- [If not specified: determined by the compiler.]),
- [case "$enableval" in
- no|off)
- # disable the default enabling:
- AC_DEFINE([PNG_INTEL_SSE_OPT], [0],
- [Disable Intel SSE optimizations])
- # Prevent inclusion of the assembler files below:
- enable_intel_sse=no;;
- yes|on)
- AC_DEFINE([PNG_INTEL_SSE_OPT], [1],
- [Enable Intel SSE optimizations]);;
- *)
- AC_MSG_ERROR([--enable-intel-sse=${enable_intel_sse}: invalid value])
- esac])
-
-# Add Intel specific files to all builds where the host_cpu is Intel ('x86*')
-# or where Intel optimizations were explicitly requested (this allows a
-# fallback if a future host CPU does not match 'x86*')
-AM_CONDITIONAL([PNG_INTEL_SSE],
- [test "$enable_intel_sse" != 'no' &&
- case "$host_cpu" in
- i?86|x86_64) :;;
- *) test "$enable_intel_sse" != '';;
- esac])
-
-# PowerPC
-# ===
-#
-# PowerPC VSX (SIMD) support.
-
-AC_ARG_ENABLE([powerpc-vsx],
-AS_HELP_STRING([[[--enable-powerpc-vsx]]],
- [Enable POWERPC VSX optimizations: =no/off, check, api, yes/on:]
- [no/off: disable the optimizations; check: use internal checking code]
- [api: disable by default, enable by a call to png_set_option]
- [yes/on: turn on unconditionally.]
- [If not specified: determined by the compiler.]),
- [case "$enableval" in
- no|off)
- # disable the default enabling on __ppc64__ systems:
- AC_DEFINE([PNG_POWERPC_VSX_OPT], [0],
- [Disable POWERPC VSX optimizations])
- # Prevent inclusion of the platform specific files below:
- enable_powerpc_vsx=no;;
- check)
- AC_DEFINE([PNG_POWERPC_VSX_CHECK_SUPPORTED], [],
- [Check for POWERPC VSX support at run-time])
- AC_MSG_WARN([--enable-powerpc-vsx Please check contrib/powerpc/README file]
- [for the list of supported OSes.]);;
- api)
- AC_DEFINE([PNG_POWERPC_VSX_API_SUPPORTED], [],
- [Turn on POWERPC VSX optimizations at run-time]);;
- yes|on)
- AC_DEFINE([PNG_POWERPC_VSX_OPT], [2],
- [Enable POWERPC VSX optimizations])
- AC_MSG_WARN([--enable-powerpc-vsx: please specify 'check' or 'api', if]
- [you want the optimizations unconditionally pass '-maltivec -mvsx']
- [or '-mcpu=power8'to the compiler.]);;
- *)
- AC_MSG_ERROR([--enable-powerpc-vsx=${enable_powerpc_vsx}: invalid value])
- esac])
-
-# Add PowerPC specific files to all builds where the host_cpu is powerpc('powerpc*') or
-# where POWERPC optimizations were explicitly requested (this allows a fallback if a
-# future host CPU does not match 'powerpc*')
-
-AM_CONDITIONAL([PNG_POWERPC_VSX],
- [test "$enable_powerpc_vsx" != 'no' &&
- case "$host_cpu" in
- powerpc*|ppc64*) :;;
- esac])
-
-
-AC_MSG_NOTICE([[Extra options for compiler: $PNG_COPTS]])
-
-# Config files, substituting as above
-AC_CONFIG_FILES([Makefile libpng.pc:libpng.pc.in])
-AC_CONFIG_FILES([libpng-config:libpng-config.in],
- [chmod +x libpng-config])
-
-AC_OUTPUT
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/README.txt b/3rdparty/libpng/libpng-1.6.37/contrib/README.txt
deleted file mode 100644
index 97963c6..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/README.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-
-This "contrib" directory contains contributions which are not necessarily under
-the libpng license, although all are open source. They are not part of
-libpng proper and are not used for building the library, although some are used
-for testing the library via "make check".
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/arm-neon/README b/3rdparty/libpng/libpng-1.6.37/contrib/arm-neon/README
deleted file mode 100644
index b4248cf..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/arm-neon/README
+++ /dev/null
@@ -1,83 +0,0 @@
-OPERATING SYSTEM SPECIFIC ARM NEON DETECTION
---------------------------------------------
-
-Detection of the ability to execute ARM NEON on an ARM processor requires
-operating system support. (The information is not available in user mode.)
-
-HOW TO USE THIS
----------------
-
-This directory contains C code fragments that can be included in arm/arm_init.c
-by setting the macro PNG_ARM_NEON_FILE to the file name in "" or <> at build
-time. This setting is not recorded in pnglibconf.h and can be changed simply by
-rebuilding arm/arm_init.o with the required macro definition.
-
-For any of this code to be used the ARM NEON code must be enabled and run time
-checks must be supported. I.e.:
-
-#if PNG_ARM_NEON_OPT > 0
-#ifdef PNG_ARM_NEON_CHECK_SUPPORTED
-
-This is done in a 'configure' build by passing configure the argument:
-
- --enable-arm-neon=check
-
-Apart from the basic Linux implementation in contrib/arm-neon/linux.c this code
-is unsupported. That means that it is not even compiled on a regular basis and
-may be broken in any given minor release.
-
-FILE FORMAT
------------
-
-Each file documents its testing status as of the last time it was tested (which
-may have been a long time ago):
-
-STATUS: one of:
- SUPPORTED: This indicates that the file is included in the regularly
- performed test builds and bugs are fixed when discovered.
- COMPILED: This indicates that the code did compile at least once. See the
- more detailed description for the extent to which the result was
- successful.
- TESTED: This means the code was fully compiled into the libpng test programs
- and these were run at least once.
-
-BUG REPORTS: an email address to which to send reports of problems
-
-The file is a fragment of C code. It should not define any 'extern' symbols;
-everything should be static. It must define the function:
-
-static int png_have_neon(png_structp png_ptr);
-
-That function must return 1 if ARM NEON instructions are supported, 0 if not.
-It must not execute png_error unless it detects a bug. A png_error will prevent
-the reading of the PNG and in the future, writing too.
-
-BUG REPORTS
------------
-
-If you mail a bug report for any file that is not SUPPORTED there may only be
-limited response. Consider fixing it and sending a patch to fix the problem -
-this is more likely to result in action.
-
-CONTRIBUTIONS
--------------
-
-You may send contributions of new implementations to
-png-mng-implement@sourceforge.net. Please write code in strict C90 C where
-possible. Obviously OS dependencies are to be expected. If you submit code you
-must have the authors permission and it must have a license that is acceptable
-to the current maintainer; in particular that license must permit modification
-and redistribution.
-
-Please try to make the contribution a single file and give the file a clear and
-unambiguous name that identifies the target OS. If multiple files really are
-required put them all in a sub-directory.
-
-You must also be prepared to handle bug reports from users of the code, either
-by joining the png-mng-implement mailing list or by providing an email for the
-"BUG REPORTS" entry or both. Please make sure that the header of the file
-contains the STATUS and BUG REPORTS fields as above.
-
-Please list the OS requirements as precisely as possible. Ideally you should
-also list the environment in which the code has been tested and certainly list
-any environments where you suspect it might not work.
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/arm-neon/android-ndk.c b/3rdparty/libpng/libpng-1.6.37/contrib/arm-neon/android-ndk.c
deleted file mode 100644
index fb3a489..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/arm-neon/android-ndk.c
+++ /dev/null
@@ -1,39 +0,0 @@
-/* contrib/arm-neon/android-ndk.c
- *
- * Copyright (c) 2014 Glenn Randers-Pehrson
- * Written by John Bowler, 2014.
- * Last changed in libpng 1.6.10 [March 6, 2014]
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * SEE contrib/arm-neon/README before reporting bugs
- *
- * STATUS: COMPILED, UNTESTED
- * BUG REPORTS: png-mng-implement@sourceforge.net
- *
- * png_have_neon implemented for the Android NDK, see:
- *
- * Documentation:
- * http://www.kandroid.org/ndk/docs/CPU-ARM-NEON.html
- * https://code.google.com/p/android/issues/detail?id=49065
- *
- * NOTE: this requires that libpng is built against the Android NDK and linked
- * with an implementation of the Android ARM 'cpu-features' library. The code
- * has been compiled only, not linked: no version of the library has been found,
- * only the header files exist in the NDK.
- */
-#include <cpu-features.h>
-
-static int
-png_have_neon(png_structp png_ptr)
-{
- /* This is a whole lot easier than the linux code, however it is probably
- * implemented as below, therefore it is better to cache the result (these
- * function calls may be slow!)
- */
- PNG_UNUSED(png_ptr)
- return android_getCpuFamily() == ANDROID_CPU_FAMILY_ARM &&
- (android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_NEON) != 0;
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/arm-neon/linux-auxv.c b/3rdparty/libpng/libpng-1.6.37/contrib/arm-neon/linux-auxv.c
deleted file mode 100644
index 4d26bd3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/arm-neon/linux-auxv.c
+++ /dev/null
@@ -1,120 +0,0 @@
-/* contrib/arm-neon/linux-auxv.c
- *
- * Copyright (c) 2014 Glenn Randers-Pehrson
- * Written by Mans Rullgard, 2011.
- * Last changed in libpng 1.6.10 [March 6, 2014]
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * SEE contrib/arm-neon/README before reporting bugs
- *
- * STATUS: COMPILED, TESTED
- * BUG REPORTS: png-mng-implement@sourceforge.net
- *
- * png_have_neon implemented for Linux versions which allow access to
- * /proc/self/auxv. This is probably faster, cleaner and safer than the code to
- * read /proc/cpuinfo in contrib/arm-neon/linux, however it is yet another piece
- * of potentially untested code and has more complex dependencies than the code
- * to read cpuinfo.
- *
- * This generic __linux__ implementation requires reading /proc/self/auxv and
- * looking at each element for one that records NEON capabilities.
- */
-#include <unistd.h> /* for POSIX 1003.1 */
-#include <errno.h> /* for EINTR */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <elf.h>
-#include <asm/hwcap.h>
-
-/* A read call may be interrupted, in which case it returns -1 and sets errno to
- * EINTR if nothing was done, otherwise (if something was done) a partial read
- * may result.
- */
-static size_t
-safe_read(png_structp png_ptr, int fd, void *buffer_in, size_t nbytes)
-{
- size_t ntotal = 0;
- char *buffer = png_voidcast(char*, buffer_in);
-
- while (nbytes > 0)
- {
- unsigned int nread;
- int iread;
-
- /* Passing nread > INT_MAX to read is implementation defined in POSIX
- * 1003.1, therefore despite the unsigned argument portable code must
- * limit the value to INT_MAX!
- */
- if (nbytes > INT_MAX)
- nread = INT_MAX;
-
- else
- nread = (unsigned int)/*SAFE*/nbytes;
-
- iread = read(fd, buffer, nread);
-
- if (iread == -1)
- {
- /* This is the devil in the details, a read can terminate early with 0
- * bytes read because of EINTR, yet it still returns -1 otherwise end
- * of file cannot be distinguished.
- */
- if (errno != EINTR)
- {
- png_warning(png_ptr, "/proc read failed");
- return 0; /* I.e., a permanent failure */
- }
- }
-
- else if (iread < 0)
- {
- /* Not a valid 'read' result: */
- png_warning(png_ptr, "OS /proc read bug");
- return 0;
- }
-
- else if (iread > 0)
- {
- /* Continue reading until a permanent failure, or EOF */
- buffer += iread;
- nbytes -= (unsigned int)/*SAFE*/iread;
- ntotal += (unsigned int)/*SAFE*/iread;
- }
-
- else
- return ntotal;
- }
-
- return ntotal; /* nbytes == 0 */
-}
-
-static int
-png_have_neon(png_structp png_ptr)
-{
- int fd = open("/proc/self/auxv", O_RDONLY);
- Elf32_auxv_t aux;
-
- /* Failsafe: failure to open means no NEON */
- if (fd == -1)
- {
- png_warning(png_ptr, "/proc/self/auxv open failed");
- return 0;
- }
-
- while (safe_read(png_ptr, fd, &aux, sizeof aux) == sizeof aux)
- {
- if (aux.a_type == AT_HWCAP && (aux.a_un.a_val & HWCAP_NEON) != 0)
- {
- close(fd);
- return 1;
- }
- }
-
- close(fd);
- return 0;
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/arm-neon/linux.c b/3rdparty/libpng/libpng-1.6.37/contrib/arm-neon/linux.c
deleted file mode 100644
index a9bc360..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/arm-neon/linux.c
+++ /dev/null
@@ -1,161 +0,0 @@
-/* contrib/arm-neon/linux.c
- *
- * Last changed in libpng 1.6.31 [July 27, 2017]
- * Copyright (c) 2014, 2017 Glenn Randers-Pehrson
- * Written by John Bowler, 2014, 2017.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * SEE contrib/arm-neon/README before reporting bugs
- *
- * STATUS: SUPPORTED
- * BUG REPORTS: png-mng-implement@sourceforge.net
- *
- * png_have_neon implemented for Linux by reading the widely available
- * pseudo-file /proc/cpuinfo.
- *
- * This code is strict ANSI-C and is probably moderately portable; it does
- * however use <stdio.h> and it assumes that /proc/cpuinfo is never localized.
- */
-#include <stdio.h>
-
-static int
-png_have_neon(png_structp png_ptr)
-{
- FILE *f = fopen("/proc/cpuinfo", "rb");
-
- if (f != NULL)
- {
- /* This is a simple state machine which reads the input byte-by-byte until
- * it gets a match on the 'neon' feature or reaches the end of the stream.
- */
- static const char ch_feature[] = { 70, 69, 65, 84, 85, 82, 69, 83 };
- static const char ch_neon[] = { 78, 69, 79, 78 };
-
- enum
- {
- StartLine, Feature, Colon, StartTag, Neon, HaveNeon, SkipTag, SkipLine
- } state;
- int counter;
-
- for (state=StartLine, counter=0;;)
- {
- int ch = fgetc(f);
-
- if (ch == EOF)
- {
- /* EOF means error or end-of-file, return false; neon at EOF is
- * assumed to be a mistake.
- */
- fclose(f);
- return 0;
- }
-
- switch (state)
- {
- case StartLine:
- /* Match spaces at the start of line */
- if (ch <= 32) /* skip control characters and space */
- break;
-
- counter=0;
- state = Feature;
- /* FALLTHROUGH */
-
- case Feature:
- /* Match 'FEATURE', ASCII case insensitive. */
- if ((ch & ~0x20) == ch_feature[counter])
- {
- if (++counter == (sizeof ch_feature))
- state = Colon;
- break;
- }
-
- /* did not match 'feature' */
- state = SkipLine;
- /* FALLTHROUGH */
-
- case SkipLine:
- skipLine:
- /* Skip everything until we see linefeed or carriage return */
- if (ch != 10 && ch != 13)
- break;
-
- state = StartLine;
- break;
-
- case Colon:
- /* Match any number of space or tab followed by ':' */
- if (ch == 32 || ch == 9)
- break;
-
- if (ch == 58) /* i.e. ':' */
- {
- state = StartTag;
- break;
- }
-
- /* Either a bad line format or a 'feature' prefix followed by
- * other characters.
- */
- state = SkipLine;
- goto skipLine;
-
- case StartTag:
- /* Skip space characters before a tag */
- if (ch == 32 || ch == 9)
- break;
-
- state = Neon;
- counter = 0;
- /* FALLTHROUGH */
-
- case Neon:
- /* Look for 'neon' tag */
- if ((ch & ~0x20) == ch_neon[counter])
- {
- if (++counter == (sizeof ch_neon))
- state = HaveNeon;
- break;
- }
-
- state = SkipTag;
- /* FALLTHROUGH */
-
- case SkipTag:
- /* Skip non-space characters */
- if (ch == 10 || ch == 13)
- state = StartLine;
-
- else if (ch == 32 || ch == 9)
- state = StartTag;
- break;
-
- case HaveNeon:
- /* Have seen a 'neon' prefix, but there must be a space or new
- * line character to terminate it.
- */
- if (ch == 10 || ch == 13 || ch == 32 || ch == 9)
- {
- fclose(f);
- return 1;
- }
-
- state = SkipTag;
- break;
-
- default:
- png_error(png_ptr, "png_have_neon: internal error (bug)");
- }
- }
- }
-
-#ifdef PNG_WARNINGS_SUPPORTED
- else
- png_warning(png_ptr, "/proc/cpuinfo open failed");
-#endif
-
- return 0;
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/conftest/README b/3rdparty/libpng/libpng-1.6.37/contrib/conftest/README
deleted file mode 100644
index 0f47279..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/conftest/README
+++ /dev/null
@@ -1,49 +0,0 @@
-This directory contains test configuration files, currently always '.dfa' files
-intended to be used in the build by setting the make macro DFA_XTRA to the name
-of the file.
-
-These files are used in release validation of the 'configure' builds of libpng
-by building 'make check', or 'make all-am' for cross-builds, with each .dfa
-file.
-
-The files in this directory may change between minor releases, however
-contributions describing specific builds of libpng are welcomed. There is no
-guarantee that libpng will continue to build with such configurations; support
-for given configurations can be, and has been, dropped between successive minor
-releases. However if a .dfa file describing a configuration is not in this
-directory it is very unlikely that it will be tested before a minor release!
-
-You can use these .dfa files as the basis of new configurations. Files in this
-directory should not have any use restrictions or restrictive licenses.
-
-This directory is not included in the .zip and .7z distributions, which do
-not contain 'configure' scripts.
-
-DOCUMENTATION
-=============
-
-Examples:
- ${srcdir}/pngusr.dfa
- ${srcdir}/contrib/pngminim/*/pngusr.dfa
-
-Documentation of the options:
- ${srcdir}/scripts/pnglibconf.dfa
-
-Documentation of the file format:
- ${srcdir}/scripts/options.awk
-
-FILE NAMING
-===========
-
-File names in this directory may NOT contain any of the five characters:
-
- - , + * ?
-
-Neither may they contain any space character.
-
-While other characters may be used it is strongly suggested that file names be
-limited to lower case Latiin alphabetic characters (a-z), digits (0-9) and, if
-necessary the underscore (_) character. File names should be about 8 characters
-long (excluding the .dfa extension). Submitted .dfa files should have names
-between 7 and 16 characters long, shorter names (6 characters or less) are
-reserved for standard tests.
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/conftest/pngcp.dfa b/3rdparty/libpng/libpng-1.6.37/contrib/conftest/pngcp.dfa
deleted file mode 100644
index 31c411d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/conftest/pngcp.dfa
+++ /dev/null
@@ -1,57 +0,0 @@
-# pngcp.dfa
-# Build time configuration of libpng
-#
-# Author: John Bowler
-# Copyright: (c) John Bowler, 2016
-# Usage rights:
-# To the extent possible under law, the author has waived all copyright and
-# related or neighboring rights to this work. This work is published from:
-# United States.
-#
-# Build libpng with support for pngcp. This means just png_read_png,
-# png_write_png and small number of configuration settings.
-#
-everything = off
-
-# This option is specific to this configuration; it adds a #define to the
-# generated pnglibconf.h which turns on the (not portable) timing option for
-# pngcp. Note that any option is automatically preceded by PNG_; there is no
-# way round this and this is deliberate.
-option PNGCP_TIMING
-
-# Because of the everything off above the option must also be turned on. This
-# may not be done in one step because it is safer and avoids mis-spelled options
-# in user .dfa files to error out if an unrecognized option is turned on.
-option PNGCP_TIMING on
-
-# Options to turn on png_read_png and png_write_png:
-option INFO_IMAGE on
-option SEQUENTIAL_READ on
-option EASY_ACCESS on
-option WRITE on
-option WRITE_16BIT on
-option WRITE_FILTER on
-
-# pngcp needs this to preserve unknown chunks, switching all these on means that
-# pngcp can work without explicit known chunk reading support
-option UNKNOWN_CHUNKS on
-option SET_UNKNOWN_CHUNKS on
-option HANDLE_AS_UNKNOWN on
-option SAVE_UNKNOWN_CHUNKS on
-option WRITE_UNKNOWN_CHUNKS on
-
-# pngcp needs this to handle palette files with invalid indices:
-option CHECK_FOR_INVALID_INDEX on
-option GET_PALETTE_MAX on
-
-# Pre-libpng 1.7 pngcp has to stash text chunks manually, post 1.7 without this
-# text chunks should be handled as unknown ok.
-option TEXT on
-
-# this is used to turn off limits:
-option USER_LIMITS on
-option SET_USER_LIMITS on
-
-# these are just required for specific customizations
-option WRITE_CUSTOMIZE_ZTXT_COMPRESSION on
-option WRITE_CUSTOMIZE_COMPRESSION on
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/conftest/read.dfa b/3rdparty/libpng/libpng-1.6.37/contrib/conftest/read.dfa
deleted file mode 100644
index 21e88d0..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/conftest/read.dfa
+++ /dev/null
@@ -1,58 +0,0 @@
-# read.dfa
-# Build time configuration of libpng
-#
-# Author: John Bowler
-# Copyright: (c) John Bowler, 2013
-# Usage rights:
-# To the extent possible under law, the author has waived all copyright and
-# related or neighboring rights to this work. This work is published from:
-# United States.
-#
-# Build libpng with basic read support. This enables the lowest level libpng
-# read API - the one where the calling code has to use a loop to read each row.
-# At present this is the API used by most programs.
-#
-# Support is enabled only for those chunks and transformations that are
-# typically required - others can be added easily.
-#
-
-everything = off
-
-# The sequential read code is enabled here; the progressive code can be used
-# instead but there is no point enabling both.
-
-option SEQUENTIAL_READ on
-
-# Likewise it is pointless enabling both fixed and floating point APIs. Choose
-# one or the other for both the API and the internal math.
-
-#Fixed point:
-#option FIXED_POINT on
-#option FLOATING_ARITHMETIC off
-
-#Floating point:
-option FLOATING_POINT on
-option FLOATING_ARITHMETIC on
-
-# Basic error handling, IO and user memory support. The latter allows the
-# application program to provide its own implementations of 'malloc' and 'free'.
-option SETJMP on
-option STDIO on
-option USER_MEM on
-
-# To read the full set of PNG images correctly interlace, transparency and
-# 16-bit support is required. The application can implement interlace itself,
-# but very few do and it's no longer possible to disable it when READ is
-# enabled.
-option READ_tRNS on
-option READ_16BIT on
-
-# Everything else is application dependent. This file assumes the app handles
-# all the native PNG bit layouts, so it doesn't need any of layout change
-# transforms, but needs libpng to perform gamma correction. It doesn't do any
-# colorspace stuff and ignores the 'significant bit' information.
-#
-# If your app always expands the image to a limited set of bit layouts you
-# probably want to consider using the simplified API instead of the low level
-# one - see png.h and s_read.dfa.
-option READ_GAMMA on
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/conftest/s_read.dfa b/3rdparty/libpng/libpng-1.6.37/contrib/conftest/s_read.dfa
deleted file mode 100644
index cb1ce0b..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/conftest/s_read.dfa
+++ /dev/null
@@ -1,35 +0,0 @@
-# s_read.dfa
-# Build time configuration of libpng
-#
-# Author: John Bowler
-# Copyright: (c) John Bowler, 2013
-# Usage rights:
-# To the extent possible under law, the author has waived all copyright and
-# related or neighboring rights to this work. This work is published from:
-# United States.
-#
-# Build libpng with simplified read support (only). This builds a minimal
-# libpng able to read all PNG formats and convert them into a small number of
-# well understood memory formats.
-#
-
-everything = off
-
-option SIMPLIFIED_READ on
-
-# It isn't necessary to chose fixed or floating point for the APIs because the
-# simplified API doesn't need fixed or floating point numbers. It is necessary
-# to chose an internal math implementation. The default (because of 'everything
-# = off') is fixed point - turn the floating point implementation on if you have
-# hardware floating point or prefer your software floating point implementation.
-option FLOATING_ARITHMETIC on
-
-# This is not strictly necessary, but without it the message strings in the API
-# will not be filled in
-option ERROR_TEXT on
-
-# Switching these options on enables the 'AFIRST' and 'BGR' formats - you don't
-# need this if you don't use them, they just allow the in-memory layout to be
-# changed to match common hardware formats.
-option SIMPLIFIED_READ_AFIRST on
-option SIMPLIFIED_READ_BGR on
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/conftest/s_write.dfa b/3rdparty/libpng/libpng-1.6.37/contrib/conftest/s_write.dfa
deleted file mode 100644
index e540a46..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/conftest/s_write.dfa
+++ /dev/null
@@ -1,33 +0,0 @@
-# s_write.dfa
-# Build time configuration of libpng
-#
-# Author: John Bowler
-# Copyright: (c) John Bowler, 2013
-# Usage rights:
-# To the extent possible under law, the author has waived all copyright and
-# related or neighboring rights to this work. This work is published from:
-# United States.
-#
-# Build libpng with (just) simplified write support
-#
-
-everything = off
-
-option SIMPLIFIED_WRITE on
-
-# It isn't necessary to chose fixed or floating point for the APIs because the
-# simplified API doesn't need fixed or floating point numbers. It is necessary
-# to chose an internal math implementation. The default (because of 'everything
-# = off') is fixed point - turn the floating point implementation on if you have
-# hardware floating point or prefer your software floating point implementation.
-option FLOATING_ARITHMETIC on
-
-# This is not strictly necessary, but without it the message strings in the API
-# will not be filled in
-option ERROR_TEXT on
-
-# Switching these options on enables the 'AFIRST' and 'BGR' formats - you don't
-# need this if you don't use them, they just allow the in-memory layout to be
-# changed to match common hardware formats.
-option SIMPLIFIED_WRITE_AFIRST on
-option SIMPLIFIED_WRITE_BGR on
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/conftest/simple.dfa b/3rdparty/libpng/libpng-1.6.37/contrib/conftest/simple.dfa
deleted file mode 100644
index 0419333..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/conftest/simple.dfa
+++ /dev/null
@@ -1,36 +0,0 @@
-# simple.dfa
-# Build time configuration of libpng
-#
-# Author: John Bowler
-# Copyright: (c) John Bowler, 2013
-# Usage rights:
-# To the extent possible under law, the author has waived all copyright and
-# related or neighboring rights to this work. This work is published from:
-# United States.
-#
-# Build libpng with just the simplified APIs (read and write).
-#
-
-everything = off
-
-option SIMPLIFIED_WRITE on
-option SIMPLIFIED_READ on
-
-# It isn't necessary to chose fixed or floating point for the APIs because the
-# simplified API doesn't need fixed or floating point numbers. It is necessary
-# to chose an internal math implementation. The default (because of 'everything
-# = off') is fixed point - turn the floating point implementation on if you have
-# hardware floating point or prefer your software floating point implementation.
-option FLOATING_ARITHMETIC on
-
-# This is not strictly necessary, but without it the message strings in the API
-# will not be filled in
-option ERROR_TEXT on
-
-# Switching these options on enables the 'AFIRST' and 'BGR' formats - you don't
-# need this if you don't use them, they just allow the in-memory layout to be
-# changed to match common hardware formats.
-option SIMPLIFIED_READ_AFIRST on
-option SIMPLIFIED_READ_BGR on
-option SIMPLIFIED_WRITE_AFIRST on
-option SIMPLIFIED_WRITE_BGR on
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/conftest/write.dfa b/3rdparty/libpng/libpng-1.6.37/contrib/conftest/write.dfa
deleted file mode 100644
index 3319aab..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/conftest/write.dfa
+++ /dev/null
@@ -1,45 +0,0 @@
-# write.dfa
-# Build time configuration of libpng
-#
-# Author: John Bowler
-# Copyright: (c) John Bowler, 2013
-# Usage rights:
-# To the extent possible under law, the author has waived all copyright and
-# related or neighboring rights to this work. This work is published from:
-# United States.
-#
-# Build libpng with no read support and minimal write support.
-#
-
-everything = off
-
-# Switch on the write code - this makes a minimalist encoder
-
-option WRITE on
-
-# Choose fixed or floating point APIs and arithmetic. The choices are
-# independent but normally they will match. It is typically better to use the
-# floating point if you have floating point hardware. If you don't know, or
-# (perhaps) to make libpng smaller used fixed point throughout.
-
-#Fixed point:
-#option FIXED_POINT on
-#option FLOATING_ARITHMETIC off
-
-#Floating point:
-option FLOATING_POINT on
-option FLOATING_ARITHMETIC on
-
-# Basic error handling, IO and user memory support. The latter allows the
-# application program to provide its own implementations of 'malloc' and 'free'.
-option SETJMP on
-option STDIO on
-option USER_MEM on
-
-# Everything else is optional. Unlike the read code in libpng the write code
-# does not need to deal with arbitrary formats, so only add support for things
-# you really do write! For example you might only write sRGB images, sometimes
-# with transparency and never write 16 bit images, so:
-option WRITE_sRGB on
-option WRITE_tRNS on
-#option WRITE_16BIT off (this is the default with 'everything = off')
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/examples/README.txt b/3rdparty/libpng/libpng-1.6.37/contrib/examples/README.txt
deleted file mode 100644
index 48dab4f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/examples/README.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-
-This directory (contrib/examples) contains examples of libpng usage.
-
-NO COPYRIGHT RIGHTS ARE CLAIMED TO ANY OF THE FILES IN THIS DIRECTORY.
-
-To the extent possible under law, the authors have waived all copyright and
-related or neighboring rights to this work. This work is published from:
-United States.
-
-The files may be used freely in any way. The intention is that appropriate
-parts of the files be used in other libpng-using programs without any need for
-the authors of the using code to seek copyright or license from the original
-authors.
-
-The source code and comments in this directory are the original work of the
-people named below. No other person or organization has made contributions to
-the work in this directory.
-
-ORIGINAL AUTHORS
- The following people have contributed to the code in this directory. None
- of the people below claim any rights with regard to the contents of this
- directory.
-
- John Bowler <jbowler at acm.org>
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/examples/iccfrompng.c b/3rdparty/libpng/libpng-1.6.37/contrib/examples/iccfrompng.c
deleted file mode 100644
index 00056ab..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/examples/iccfrompng.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*- iccfrompng
- *
- * COPYRIGHT: Written by John Cunningham Bowler, 2011.
- * To the extent possible under law, the author has waived all copyright and
- * related or neighboring rights to this work. This work is published from:
- * United States.
- *
- * Extract any icc profiles found in the given PNG files. This is a simple
- * example of a program that extracts information from the header of a PNG file
- * without processing the image. Notice that some header information may occur
- * after the image data. Textual data and comments are an example; the approach
- * in this file won't work reliably for such data because it only looks for the
- * information in the section of the file that precedes the image data.
- *
- * Compile and link against libpng and zlib, plus anything else required on the
- * system you use.
- *
- * To use supply a list of PNG files containing iCCP chunks, the chunks will be
- * extracted to a similarly named file with the extension replaced by 'icc',
- * which will be overwritten without warning.
- */
-#include <stdlib.h>
-#include <setjmp.h>
-#include <string.h>
-#include <stdio.h>
-
-#include <png.h>
-
-#if defined(PNG_READ_SUPPORTED) && defined(PNG_STDIO_SUPPORTED) && \
- defined (PNG_iCCP_SUPPORTED)
-
-
-static int verbose = 1;
-static png_byte no_profile[] = "no profile";
-
-static png_bytep
-extract(FILE *fp, png_uint_32 *proflen)
-{
- png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,0,0,0);
- png_infop info_ptr = NULL;
- png_bytep result = NULL;
-
- /* Initialize for error or no profile: */
- *proflen = 0;
-
- if (png_ptr == NULL)
- {
- fprintf(stderr, "iccfrompng: version library mismatch?\n");
- return 0;
- }
-
- if (setjmp(png_jmpbuf(png_ptr)))
- {
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- return 0;
- }
-
- png_init_io(png_ptr, fp);
-
- info_ptr = png_create_info_struct(png_ptr);
- if (info_ptr == NULL)
- png_error(png_ptr, "OOM allocating info structure");
-
- png_read_info(png_ptr, info_ptr);
-
- {
- png_charp name;
- int compression_type;
- png_bytep profile;
-
- if (png_get_iCCP(png_ptr, info_ptr, &name, &compression_type, &profile,
- proflen) & PNG_INFO_iCCP)
- {
- result = malloc(*proflen);
- if (result != NULL)
- memcpy(result, profile, *proflen);
-
- else
- png_error(png_ptr, "OOM allocating profile buffer");
- }
-
- else
- result = no_profile;
- }
-
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- return result;
-}
-
-static int
-extract_one_file(const char *filename)
-{
- int result = 0;
- FILE *fp = fopen(filename, "rb");
-
- if (fp != NULL)
- {
- png_uint_32 proflen = 0;
- png_bytep profile = extract(fp, &proflen);
-
- if (profile != NULL && profile != no_profile)
- {
- size_t len;
- char *output;
-
- {
- const char *ep = strrchr(filename, '.');
-
- if (ep != NULL)
- len = ep-filename;
-
- else
- len = strlen(filename);
- }
-
- output = malloc(len + 5);
- if (output != NULL)
- {
- FILE *of;
-
- memcpy(output, filename, len);
- strcpy(output+len, ".icc");
-
- of = fopen(output, "wb");
- if (of != NULL)
- {
- if (fwrite(profile, proflen, 1, of) == 1 &&
- fflush(of) == 0 &&
- fclose(of) == 0)
- {
- if (verbose)
- printf("%s -> %s\n", filename, output);
- /* Success return */
- result = 1;
- }
-
- else
- {
- fprintf(stderr, "%s: error writing profile\n", output);
- if (remove(output))
- fprintf(stderr, "%s: could not remove file\n", output);
- }
- }
-
- else
- fprintf(stderr, "%s: failed to open output file\n", output);
-
- free(output);
- }
-
- else
- fprintf(stderr, "%s: OOM allocating string!\n", filename);
-
- free(profile);
- }
-
- else if (verbose && profile == no_profile)
- printf("%s has no profile\n", filename);
- }
-
- else
- fprintf(stderr, "%s: could not open file\n", filename);
-
- return result;
-}
-
-int
-main(int argc, char **argv)
-{
- int i;
- int extracted = 0;
-
- for (i=1; i<argc; ++i)
- {
- if (strcmp(argv[i], "-q") == 0)
- verbose = 0;
-
- else if (extract_one_file(argv[i]))
- extracted = 1;
- }
-
- /* Exit code is true if any extract succeeds */
- return extracted == 0;
-}
-#endif /* READ && STDIO && iCCP */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/examples/pngpixel.c b/3rdparty/libpng/libpng-1.6.37/contrib/examples/pngpixel.c
deleted file mode 100644
index 9185d51..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/examples/pngpixel.c
+++ /dev/null
@@ -1,371 +0,0 @@
-/*- pngpixel
- *
- * COPYRIGHT: Written by John Cunningham Bowler, 2011.
- * To the extent possible under law, the author has waived all copyright and
- * related or neighboring rights to this work. This work is published from:
- * United States.
- *
- * Read a single pixel value from a PNG file.
- *
- * This code illustrates basic 'by-row' reading of a PNG file using libpng.
- * Rows are read until a particular pixel is found; the value of this pixel is
- * then printed on stdout.
- *
- * The code illustrates how to do this on interlaced as well as non-interlaced
- * images. Normally you would call png_set_interlace_handling() to have libpng
- * deal with the interlace for you, but that obliges you to buffer half of the
- * image to assemble the interlaced rows. In this code
- * png_set_interlace_handling() is not called and, instead, the code handles the
- * interlace passes directly looking for the required pixel.
- */
-#include <stdlib.h>
-#include <stdio.h>
-#include <setjmp.h> /* required for error handling */
-
-/* Normally use <png.h> here to get the installed libpng, but this is done to
- * ensure the code picks up the local libpng implementation:
- */
-#include "../../png.h"
-
-#if defined(PNG_READ_SUPPORTED) && defined(PNG_SEQUENTIAL_READ_SUPPORTED)
-
-/* Return component 'c' of pixel 'x' from the given row. */
-static unsigned int
-component(png_const_bytep row, png_uint_32 x, unsigned int c,
- unsigned int bit_depth, unsigned int channels)
-{
- /* PNG images can be up to 2^31 pixels wide, but this means they can be up to
- * 2^37 bits wide (for a 64-bit pixel - the largest possible) and hence 2^34
- * bytes wide. Since the row fitted into memory, however, the following must
- * work:
- */
- png_uint_32 bit_offset_hi = bit_depth * ((x >> 6) * channels);
- png_uint_32 bit_offset_lo = bit_depth * ((x & 0x3f) * channels + c);
-
- row = (png_const_bytep)(((const png_byte (*)[8])row) + bit_offset_hi);
- row += bit_offset_lo >> 3;
- bit_offset_lo &= 0x07;
-
- /* PNG pixels are packed into bytes to put the first pixel in the highest
- * bits of the byte and into two bytes for 16-bit values with the high 8 bits
- * first, so:
- */
- switch (bit_depth)
- {
- case 1: return (row[0] >> (7-bit_offset_lo)) & 0x01;
- case 2: return (row[0] >> (6-bit_offset_lo)) & 0x03;
- case 4: return (row[0] >> (4-bit_offset_lo)) & 0x0f;
- case 8: return row[0];
- case 16: return (row[0] << 8) + row[1];
- default:
- /* This should never happen; it indicates a bug in this program or in
- * libpng itself:
- */
- fprintf(stderr, "pngpixel: invalid bit depth %u\n", bit_depth);
- exit(1);
- }
-}
-
-/* Print a pixel from a row returned by libpng; determine the row format, find
- * the pixel, and print the relevant information to stdout.
- */
-static void
-print_pixel(png_structp png_ptr, png_infop info_ptr, png_const_bytep row,
- png_uint_32 x)
-{
- unsigned int bit_depth = png_get_bit_depth(png_ptr, info_ptr);
-
- switch (png_get_color_type(png_ptr, info_ptr))
- {
- case PNG_COLOR_TYPE_GRAY:
- printf("GRAY %u\n", component(row, x, 0, bit_depth, 1));
- return;
-
- /* The palette case is slightly more difficult - the palette and, if
- * present, the tRNS ('transparency', though the values are really
- * opacity) data must be read to give the full picture:
- */
- case PNG_COLOR_TYPE_PALETTE:
- {
- int index = component(row, x, 0, bit_depth, 1);
- png_colorp palette = NULL;
- int num_palette = 0;
-
- if ((png_get_PLTE(png_ptr, info_ptr, &palette, &num_palette) &
- PNG_INFO_PLTE) && num_palette > 0 && palette != NULL)
- {
- png_bytep trans_alpha = NULL;
- int num_trans = 0;
- if ((png_get_tRNS(png_ptr, info_ptr, &trans_alpha, &num_trans,
- NULL) & PNG_INFO_tRNS) && num_trans > 0 &&
- trans_alpha != NULL)
- printf("INDEXED %u = %d %d %d %d\n", index,
- palette[index].red, palette[index].green,
- palette[index].blue,
- index < num_trans ? trans_alpha[index] : 255);
-
- else /* no transparency */
- printf("INDEXED %u = %d %d %d\n", index,
- palette[index].red, palette[index].green,
- palette[index].blue);
- }
-
- else
- printf("INDEXED %u = invalid index\n", index);
- }
- return;
-
- case PNG_COLOR_TYPE_RGB:
- printf("RGB %u %u %u\n", component(row, x, 0, bit_depth, 3),
- component(row, x, 1, bit_depth, 3),
- component(row, x, 2, bit_depth, 3));
- return;
-
- case PNG_COLOR_TYPE_GRAY_ALPHA:
- printf("GRAY+ALPHA %u %u\n", component(row, x, 0, bit_depth, 2),
- component(row, x, 1, bit_depth, 2));
- return;
-
- case PNG_COLOR_TYPE_RGB_ALPHA:
- printf("RGBA %u %u %u %u\n", component(row, x, 0, bit_depth, 4),
- component(row, x, 1, bit_depth, 4),
- component(row, x, 2, bit_depth, 4),
- component(row, x, 3, bit_depth, 4));
- return;
-
- default:
- png_error(png_ptr, "pngpixel: invalid color type");
- }
-}
-
-int main(int argc, const char **argv)
-{
- /* This program uses the default, <setjmp.h> based, libpng error handling
- * mechanism, therefore any local variable that exists before the call to
- * setjmp and is changed after the call to setjmp returns successfully must
- * be declared with 'volatile' to ensure that their values don't get
- * destroyed by longjmp:
- */
- volatile int result = 1/*fail*/;
-
- if (argc == 4)
- {
- long x = atol(argv[1]);
- long y = atol(argv[2]);
- FILE *f = fopen(argv[3], "rb");
- volatile png_bytep row = NULL;
-
- if (f != NULL)
- {
- /* libpng requires a callback function for handling errors; this
- * callback must not return. The default callback function uses a
- * stored <setjmp.h> style jmp_buf which is held in a png_struct and
- * writes error messages to stderr. Creating the png_struct is a
- * little tricky; just copy the following code.
- */
- png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
- NULL, NULL, NULL);
-
- if (png_ptr != NULL)
- {
- png_infop info_ptr = png_create_info_struct(png_ptr);
-
- if (info_ptr != NULL)
- {
- /* Declare stack variables to hold pointers to locally allocated
- * data.
- */
-
- /* Initialize the error control buffer: */
- if (setjmp(png_jmpbuf(png_ptr)) == 0)
- {
- png_uint_32 width, height;
- int bit_depth, color_type, interlace_method,
- compression_method, filter_method;
- png_bytep row_tmp;
-
- /* Now associate the recently opened (FILE*) with the default
- * libpng initialization functions. Sometimes libpng is
- * compiled without stdio support (it can be difficult to do
- * in some environments); in that case you will have to write
- * your own read callback to read data from the (FILE*).
- */
- png_init_io(png_ptr, f);
-
- /* And read the first part of the PNG file - the header and
- * all the information up to the first pixel.
- */
- png_read_info(png_ptr, info_ptr);
-
- /* This fills in enough information to tell us the width of
- * each row in bytes, allocate the appropriate amount of
- * space. In this case png_malloc is used - it will not
- * return if memory isn't available.
- */
- row = png_malloc(png_ptr, png_get_rowbytes(png_ptr,
- info_ptr));
-
- /* To avoid the overhead of using a volatile auto copy row_tmp
- * to a local here - just use row for the png_free below.
- */
- row_tmp = row;
-
- /* All the information we need is in the header is returned by
- * png_get_IHDR, if this fails we can now use 'png_error' to
- * signal the error and return control to the setjmp above.
- */
- if (png_get_IHDR(png_ptr, info_ptr, &width, &height,
- &bit_depth, &color_type, &interlace_method,
- &compression_method, &filter_method))
- {
- int passes, pass;
-
- /* png_set_interlace_handling returns the number of
- * passes required as well as turning on libpng's
- * handling, but since we do it ourselves this is
- * necessary:
- */
- switch (interlace_method)
- {
- case PNG_INTERLACE_NONE:
- passes = 1;
- break;
-
- case PNG_INTERLACE_ADAM7:
- passes = PNG_INTERLACE_ADAM7_PASSES;
- break;
-
- default:
- png_error(png_ptr, "pngpixel: unknown interlace");
- }
-
- /* Now read the pixels, pass-by-pass, row-by-row: */
- png_start_read_image(png_ptr);
-
- for (pass=0; pass<passes; ++pass)
- {
- png_uint_32 ystart, xstart, ystep, xstep;
- png_uint_32 py;
-
- if (interlace_method == PNG_INTERLACE_ADAM7)
- {
- /* Sometimes the whole pass is empty because the
- * image is too narrow or too short. libpng
- * expects to be called for each row that is
- * present in the pass, so it may be necessary to
- * skip the loop below (over py) if the image is
- * too narrow.
- */
- if (PNG_PASS_COLS(width, pass) == 0)
- continue;
-
- /* We need the starting pixel and the offset
- * between each pixel in this pass; use the macros
- * in png.h:
- */
- xstart = PNG_PASS_START_COL(pass);
- ystart = PNG_PASS_START_ROW(pass);
- xstep = PNG_PASS_COL_OFFSET(pass);
- ystep = PNG_PASS_ROW_OFFSET(pass);
- }
-
- else
- {
- ystart = xstart = 0;
- ystep = xstep = 1;
- }
-
- /* To find the pixel, loop over 'py' for each pass
- * reading a row and then checking to see if it
- * contains the pixel.
- */
- for (py = ystart; py < height; py += ystep)
- {
- png_uint_32 px, ppx;
-
- /* png_read_row takes two pointers. When libpng
- * handles the interlace the first is filled in
- * pixel-by-pixel, and the second receives the same
- * pixels but they are replicated across the
- * unwritten pixels so far for each pass. When we
- * do the interlace, however, they just contain
- * the pixels from the interlace pass - giving
- * both is wasteful and pointless, so we pass a
- * NULL pointer.
- */
- png_read_row(png_ptr, row_tmp, NULL);
-
- /* Now find the pixel if it is in this row; there
- * are, of course, much better ways of doing this
- * than using a for loop:
- */
- if (y == py) for (px = xstart, ppx = 0;
- px < width; px += xstep, ++ppx) if (x == px)
- {
- /* 'ppx' is the index of the pixel in the row
- * buffer.
- */
- print_pixel(png_ptr, info_ptr, row_tmp, ppx);
-
- /* Now terminate the loops early - we have
- * found and handled the required data.
- */
- goto pass_loop_end;
- } /* x loop */
- } /* y loop */
- } /* pass loop */
-
- /* Finally free the temporary buffer: */
- pass_loop_end:
- row = NULL;
- png_free(png_ptr, row_tmp);
- }
-
- else
- png_error(png_ptr, "pngpixel: png_get_IHDR failed");
-
- }
-
- else
- {
- /* Else libpng has raised an error. An error message has
- * already been output, so it is only necessary to clean up
- * locally allocated data:
- */
- if (row != NULL)
- {
- /* The default implementation of png_free never errors out
- * (it just crashes if something goes wrong), but the safe
- * way of using it is still to clear 'row' before calling
- * png_free:
- */
- png_bytep row_tmp = row;
- row = NULL;
- png_free(png_ptr, row_tmp);
- }
- }
-
- png_destroy_info_struct(png_ptr, &info_ptr);
- }
-
- else
- fprintf(stderr, "pngpixel: out of memory allocating png_info\n");
-
- png_destroy_read_struct(&png_ptr, NULL, NULL);
- }
-
- else
- fprintf(stderr, "pngpixel: out of memory allocating png_struct\n");
- }
-
- else
- fprintf(stderr, "pngpixel: %s: could not open file\n", argv[3]);
- }
-
- else
- /* Wrong number of arguments */
- fprintf(stderr, "pngpixel: usage: pngpixel x y png-file\n");
-
- return result;
-}
-#endif /* READ && SEQUENTIAL_READ */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/examples/pngtopng.c b/3rdparty/libpng/libpng-1.6.37/contrib/examples/pngtopng.c
deleted file mode 100644
index 904b972..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/examples/pngtopng.c
+++ /dev/null
@@ -1,98 +0,0 @@
-/*- pngtopng
- *
- * COPYRIGHT: Written by John Cunningham Bowler, 2011, 2017.
- * To the extent possible under law, the author has waived all copyright and
- * related or neighboring rights to this work. This work is published from:
- * United States.
- *
- * Last changed in libpng 1.6.29 [March 16, 2017]
- *
- * Read a PNG and write it out in a fixed format, using the 'simplified API'
- * that was introduced in libpng-1.6.0.
- *
- * This sample code is just the code from the top of 'example.c' with some error
- * handling added. See example.c for more comments.
- */
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-
-/* Normally use <png.h> here to get the installed libpng, but this is done to
- * ensure the code picks up the local libpng implementation:
- */
-#include "../../png.h"
-#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) && \
- defined(PNG_SIMPLIFIED_WRITE_SUPPORTED)
-
-int main(int argc, const char **argv)
-{
- int result = 1;
-
- if (argc == 3)
- {
- png_image image;
-
- /* Only the image structure version number needs to be set. */
- memset(&image, 0, sizeof image);
- image.version = PNG_IMAGE_VERSION;
-
- if (png_image_begin_read_from_file(&image, argv[1]))
- {
- png_bytep buffer;
-
- /* Change this to try different formats! If you set a colormap format
- * then you must also supply a colormap below.
- */
- image.format = PNG_FORMAT_RGBA;
-
- buffer = malloc(PNG_IMAGE_SIZE(image));
-
- if (buffer != NULL)
- {
- if (png_image_finish_read(&image, NULL/*background*/, buffer,
- 0/*row_stride*/, NULL/*colormap for PNG_FORMAT_FLAG_COLORMAP */))
- {
- if (png_image_write_to_file(&image, argv[2],
- 0/*convert_to_8bit*/, buffer, 0/*row_stride*/,
- NULL/*colormap*/))
- result = 0;
-
- else
- fprintf(stderr, "pngtopng: write %s: %s\n", argv[2],
- image.message);
- }
-
- else
- fprintf(stderr, "pngtopng: read %s: %s\n", argv[1],
- image.message);
-
- free(buffer);
- }
-
- else
- {
- fprintf(stderr, "pngtopng: out of memory: %lu bytes\n",
- (unsigned long)PNG_IMAGE_SIZE(image));
-
- /* This is the only place where a 'free' is required; libpng does
- * the cleanup on error and success, but in this case we couldn't
- * complete the read because of running out of memory and so libpng
- * has not got to the point where it can do cleanup.
- */
- png_image_free(&image);
- }
- }
-
- else
- /* Failed to read the first argument: */
- fprintf(stderr, "pngtopng: %s: %s\n", argv[1], image.message);
- }
-
- else
- /* Wrong number of arguments */
- fprintf(stderr, "pngtopng: usage: pngtopng input-file output-file\n");
-
- return result;
-}
-#endif /* READ && WRITE */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/examples/simpleover.c b/3rdparty/libpng/libpng-1.6.37/contrib/examples/simpleover.c
deleted file mode 100644
index 59dd313..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/examples/simpleover.c
+++ /dev/null
@@ -1,648 +0,0 @@
-/*- simpleover
- *
- * COPYRIGHT: Written by John Cunningham Bowler, 2015.
- * To the extent possible under law, the author has waived all copyright and
- * related or neighboring rights to this work. This work is published from:
- * United States.
- *
- * Read several PNG files, which should have an alpha channel or transparency
- * information, and composite them together to produce one or more 16-bit linear
- * RGBA intermediates. This involves doing the correct 'over' composition to
- * combine the alpha channels and corresponding data.
- *
- * Finally read an output (background) PNG using the 24-bit RGB format (the
- * PNG will be composited on green (#00ff00) by default if it has an alpha
- * channel), and apply the intermediate image generated above to specified
- * locations in the image.
- *
- * The command line has the general format:
- *
- * simpleover <background.png> [output.png]
- * {--sprite=width,height,name {[--at=x,y] {sprite.png}}}
- * {--add=name {x,y}}
- *
- * The --sprite and --add options may occur multiple times. They are executed
- * in order. --add may refer to any sprite already read.
- *
- * This code is intended to show how to composite multiple images together
- * correctly. Apart from the libpng Simplified API the only work done in here
- * is to combine multiple input PNG images into a single sprite; this involves
- * a Porter-Duff 'over' operation and the input PNG images may, as a result,
- * be regarded as being layered one on top of the other with the first (leftmost
- * on the command line) being at the bottom and the last on the top.
- */
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <errno.h>
-
-/* Normally use <png.h> here to get the installed libpng, but this is done to
- * ensure the code picks up the local libpng implementation, so long as this
- * file is linked against a sufficiently recent libpng (1.6+) it is ok to
- * change this to <png.h>:
- */
-#include "../../png.h"
-
-#ifdef PNG_SIMPLIFIED_READ_SUPPORTED
-
-#define sprite_name_chars 15
-struct sprite {
- FILE *file;
- png_uint_16p buffer;
- unsigned int width;
- unsigned int height;
- char name[sprite_name_chars+1];
-};
-
-#if 0 /* div by 65535 test program */
-#include <math.h>
-#include <stdio.h>
-
-int main(void) {
- double err = 0;
- unsigned int xerr = 0;
- unsigned int r = 32769;
- {
- unsigned int x = 0;
-
- do {
- unsigned int t = x + (x >> 16) /*+ (x >> 31)*/ + r;
- double v = x, errtest;
-
- if (t < x) {
- fprintf(stderr, "overflow: %u+%u -> %u\n", x, r, t);
- return 1;
- }
-
- v /= 65535;
- errtest = v;
- t >>= 16;
- errtest -= t;
-
- if (errtest > err) {
- err = errtest;
- xerr = x;
-
- if (errtest >= .5) {
- fprintf(stderr, "error: %u/65535 = %f, not %u, error %f\n",
- x, v, t, errtest);
- return 0;
- }
- }
- } while (++x <= 65535U*65535U);
- }
-
- printf("error %f @ %u\n", err, xerr);
-
- return 0;
-}
-#endif /* div by 65535 test program */
-
-static void
-sprite_op(const struct sprite *sprite, int x_offset, int y_offset,
- png_imagep image, const png_uint_16 *buffer)
-{
- /* This is where the Porter-Duff 'Over' operator is evaluated; change this
- * code to change the operator (this could be parameterized). Any other
- * image processing operation could be used here.
- */
-
-
- /* Check for an x or y offset that pushes any part of the image beyond the
- * right or bottom of the sprite:
- */
- if ((y_offset < 0 || (unsigned)/*SAFE*/y_offset < sprite->height) &&
- (x_offset < 0 || (unsigned)/*SAFE*/x_offset < sprite->width))
- {
- unsigned int y = 0;
-
- if (y_offset < 0)
- y = -y_offset; /* Skip to first visible row */
-
- do
- {
- unsigned int x = 0;
-
- if (x_offset < 0)
- x = -x_offset;
-
- do
- {
- /* In and out are RGBA values, so: */
- const png_uint_16 *in_pixel = buffer + (y * image->width + x)*4;
- png_uint_32 in_alpha = in_pixel[3];
-
- /* This is the optimized Porter-Duff 'Over' operation, when the
- * input alpha is 0 the output is not changed.
- */
- if (in_alpha > 0)
- {
- png_uint_16 *out_pixel = sprite->buffer +
- ((y+y_offset) * sprite->width + (x+x_offset))*4;
-
- /* This is the weight to apply to the output: */
- in_alpha = 65535-in_alpha;
-
- if (in_alpha > 0)
- {
- /* The input must be composed onto the output. This means
- * multiplying the current output pixel value by the inverse
- * of the input alpha (1-alpha). A division is required but
- * it is by the constant 65535. Approximate this as:
- *
- * (x + (x >> 16) + 32769) >> 16;
- *
- * This is exact (and does not overflow) for all values of
- * x in the range 0..65535*65535. (Note that the calculation
- * produces the closest integer; the maximum error is <0.5).
- */
- png_uint_32 tmp;
-
-# define compose(c)\
- tmp = out_pixel[c] * in_alpha;\
- tmp = (tmp + (tmp >> 16) + 32769) >> 16;\
- out_pixel[c] = tmp + in_pixel[c]
-
- /* The following is very vectorizable... */
- compose(0);
- compose(1);
- compose(2);
- compose(3);
- }
-
- else
- out_pixel[0] = in_pixel[0],
- out_pixel[1] = in_pixel[1],
- out_pixel[2] = in_pixel[2],
- out_pixel[3] = in_pixel[3];
- }
- }
- while (++x < image->width);
- }
- while (++y < image->height);
- }
-}
-
-static int
-create_sprite(struct sprite *sprite, int *argc, const char ***argv)
-{
- /* Read the arguments and create this sprite. The sprite buffer has already
- * been allocated. This reads the input PNGs one by one in linear format,
- * composes them onto the sprite buffer (the code in the function above)
- * then saves the result, converting it on the fly to PNG RGBA 8-bit format.
- */
- while (*argc > 0)
- {
- char tombstone;
- int x = 0, y = 0;
-
- if ((*argv)[0][0] == '-' && (*argv)[0][1] == '-')
- {
- /* The only supported option is --at. */
- if (sscanf((*argv)[0], "--at=%d,%d%c", &x, &y, &tombstone) != 2)
- break; /* success; caller will parse this option */
-
- ++*argv, --*argc;
- }
-
- else
- {
- /* The argument has to be a file name */
- png_image image;
-
- image.version = PNG_IMAGE_VERSION;
- image.opaque = NULL;
-
- if (png_image_begin_read_from_file(&image, (*argv)[0]))
- {
- png_uint_16p buffer;
-
- image.format = PNG_FORMAT_LINEAR_RGB_ALPHA;
-
- buffer = malloc(PNG_IMAGE_SIZE(image));
-
- if (buffer != NULL)
- {
- if (png_image_finish_read(&image, NULL/*background*/, buffer,
- 0/*row_stride*/,
- NULL/*colormap for PNG_FORMAT_FLAG_COLORMAP*/))
- {
- /* This is the place where the Porter-Duff 'Over' operator
- * needs to be done by this code. In fact, any image
- * processing required can be done here; the data is in
- * the correct format (linear, 16-bit) and source and
- * destination are in memory.
- */
- sprite_op(sprite, x, y, &image, buffer);
- free(buffer);
- ++*argv, --*argc;
- /* And continue to the next argument */
- continue;
- }
-
- else
- {
- free(buffer);
- fprintf(stderr, "simpleover: read %s: %s\n", (*argv)[0],
- image.message);
- }
- }
-
- else
- {
- fprintf(stderr, "simpleover: out of memory: %lu bytes\n",
- (unsigned long)PNG_IMAGE_SIZE(image));
-
- /* png_image_free must be called if we abort the Simplified API
- * read because of a problem detected in this code. If problems
- * are detected in the Simplified API it cleans up itself.
- */
- png_image_free(&image);
- }
- }
-
- else
- {
- /* Failed to read the first argument: */
- fprintf(stderr, "simpleover: %s: %s\n", (*argv)[0], image.message);
- }
-
- return 0; /* failure */
- }
- }
-
- /* All the sprite operations have completed successfully. Save the RGBA
- * buffer as a PNG using the simplified write API.
- */
- sprite->file = tmpfile();
-
- if (sprite->file != NULL)
- {
- png_image save;
-
- memset(&save, 0, sizeof save);
- save.version = PNG_IMAGE_VERSION;
- save.opaque = NULL;
- save.width = sprite->width;
- save.height = sprite->height;
- save.format = PNG_FORMAT_LINEAR_RGB_ALPHA;
- save.flags = PNG_IMAGE_FLAG_FAST;
- save.colormap_entries = 0;
-
- if (png_image_write_to_stdio(&save, sprite->file, 1/*convert_to_8_bit*/,
- sprite->buffer, 0/*row_stride*/, NULL/*colormap*/))
- {
- /* Success; the buffer is no longer needed: */
- free(sprite->buffer);
- sprite->buffer = NULL;
- return 1; /* ok */
- }
-
- else
- fprintf(stderr, "simpleover: write sprite %s: %s\n", sprite->name,
- save.message);
- }
-
- else
- fprintf(stderr, "simpleover: sprite %s: could not allocate tmpfile: %s\n",
- sprite->name, strerror(errno));
-
- return 0; /* fail */
-}
-
-static int
-add_sprite(png_imagep output, png_bytep out_buf, struct sprite *sprite,
- int *argc, const char ***argv)
-{
- /* Given a --add argument naming this sprite, perform the operations listed
- * in the following arguments. The arguments are expected to have the form
- * (x,y), which is just an offset at which to add the sprite to the
- * output.
- */
- while (*argc > 0)
- {
- char tombstone;
- int x, y;
-
- if ((*argv)[0][0] == '-' && (*argv)[0][1] == '-')
- return 1; /* success */
-
- if (sscanf((*argv)[0], "%d,%d%c", &x, &y, &tombstone) == 2)
- {
- /* Now add the new image into the sprite data, but only if it
- * will fit.
- */
- if (x < 0 || y < 0 ||
- (unsigned)/*SAFE*/x >= output->width ||
- (unsigned)/*SAFE*/y >= output->height ||
- sprite->width > output->width-x ||
- sprite->height > output->height-y)
- {
- fprintf(stderr, "simpleover: sprite %s @ (%d,%d) outside image\n",
- sprite->name, x, y);
- /* Could just skip this, but for the moment it is an error */
- return 0; /* error */
- }
-
- else
- {
- /* Since we know the sprite fits we can just read it into the
- * output using the simplified API.
- */
- png_image in;
-
- in.version = PNG_IMAGE_VERSION;
- rewind(sprite->file);
-
- if (png_image_begin_read_from_stdio(&in, sprite->file))
- {
- in.format = PNG_FORMAT_RGB; /* force compose */
-
- if (png_image_finish_read(&in, NULL/*background*/,
- out_buf + (y*output->width + x)*3/*RGB*/,
- output->width*3/*row_stride*/,
- NULL/*colormap for PNG_FORMAT_FLAG_COLORMAP*/))
- {
- ++*argv, --*argc;
- continue;
- }
- }
-
- /* The read failed: */
- fprintf(stderr, "simpleover: add sprite %s: %s\n", sprite->name,
- in.message);
- return 0; /* error */
- }
- }
-
- else
- {
- fprintf(stderr, "simpleover: --add='%s': invalid position %s\n",
- sprite->name, (*argv)[0]);
- return 0; /* error */
- }
- }
-
- return 1; /* ok */
-}
-
-static int
-simpleover_process(png_imagep output, png_bytep out_buf, int argc,
- const char **argv)
-{
- int result = 1; /* success */
-# define csprites 10/*limit*/
-# define str(a) #a
- int nsprites = 0;
- struct sprite sprites[csprites];
-
- while (argc > 0)
- {
- result = 0; /* fail */
-
- if (strncmp(argv[0], "--sprite=", 9) == 0)
- {
- char tombstone;
-
- if (nsprites < csprites)
- {
- int n;
-
- sprites[nsprites].width = sprites[nsprites].height = 0;
- sprites[nsprites].name[0] = 0;
-
- n = sscanf(argv[0], "--sprite=%u,%u,%" str(sprite_name_chars) "s%c",
- &sprites[nsprites].width, &sprites[nsprites].height,
- sprites[nsprites].name, &tombstone);
-
- if ((n == 2 || n == 3) &&
- sprites[nsprites].width > 0 && sprites[nsprites].height > 0)
- {
- size_t buf_size, tmp;
-
- /* Default a name if not given. */
- if (sprites[nsprites].name[0] == 0)
- sprintf(sprites[nsprites].name, "sprite-%d", nsprites+1);
-
- /* Allocate a buffer for the sprite and calculate the buffer
- * size:
- */
- buf_size = sizeof (png_uint_16 [4]);
- buf_size *= sprites[nsprites].width;
- buf_size *= sprites[nsprites].height;
-
- /* This can overflow a (size_t); check for this: */
- tmp = buf_size;
- tmp /= sprites[nsprites].width;
- tmp /= sprites[nsprites].height;
-
- if (tmp == sizeof (png_uint_16 [4]))
- {
- sprites[nsprites].buffer = malloc(buf_size);
- /* This buffer must be initialized to transparent: */
- memset(sprites[nsprites].buffer, 0, buf_size);
-
- if (sprites[nsprites].buffer != NULL)
- {
- sprites[nsprites].file = NULL;
- ++argv, --argc;
-
- if (create_sprite(sprites+nsprites++, &argc, &argv))
- {
- result = 1; /* still ok */
- continue;
- }
-
- break; /* error */
- }
- }
-
- /* Overflow, or OOM */
- fprintf(stderr, "simpleover: %s: sprite too large\n", argv[0]);
- break;
- }
-
- else
- {
- fprintf(stderr, "simpleover: %s: invalid sprite (%u,%u)\n",
- argv[0], sprites[nsprites].width, sprites[nsprites].height);
- break;
- }
- }
-
- else
- {
- fprintf(stderr, "simpleover: %s: too many sprites\n", argv[0]);
- break;
- }
- }
-
- else if (strncmp(argv[0], "--add=", 6) == 0)
- {
- const char *name = argv[0]+6;
- int isprite = nsprites;
-
- ++argv, --argc;
-
- while (--isprite >= 0)
- {
- if (strcmp(sprites[isprite].name, name) == 0)
- {
- if (!add_sprite(output, out_buf, sprites+isprite, &argc, &argv))
- goto out; /* error in add_sprite */
-
- break;
- }
- }
-
- if (isprite < 0) /* sprite not found */
- {
- fprintf(stderr, "simpleover: --add='%s': sprite not found\n", name);
- break;
- }
- }
-
- else
- {
- fprintf(stderr, "simpleover: %s: unrecognized operation\n", argv[0]);
- break;
- }
-
- result = 1; /* ok */
- }
-
- /* Clean up the cache of sprites: */
-out:
- while (--nsprites >= 0)
- {
- if (sprites[nsprites].buffer != NULL)
- free(sprites[nsprites].buffer);
-
- if (sprites[nsprites].file != NULL)
- (void)fclose(sprites[nsprites].file);
- }
-
- return result;
-}
-
-int main(int argc, const char **argv)
-{
- int result = 1; /* default to fail */
-
- if (argc >= 2)
- {
- int argi = 2;
- const char *output = NULL;
- png_image image;
-
- if (argc > 2 && argv[2][0] != '-'/*an operation*/)
- {
- output = argv[2];
- argi = 3;
- }
-
- image.version = PNG_IMAGE_VERSION;
- image.opaque = NULL;
-
- if (png_image_begin_read_from_file(&image, argv[1]))
- {
- png_bytep buffer;
-
- image.format = PNG_FORMAT_RGB; /* 24-bit RGB */
-
- buffer = malloc(PNG_IMAGE_SIZE(image));
-
- if (buffer != NULL)
- {
- png_color background = {0, 0xff, 0}; /* fully saturated green */
-
- if (png_image_finish_read(&image, &background, buffer,
- 0/*row_stride*/, NULL/*colormap for PNG_FORMAT_FLAG_COLORMAP */))
- {
- /* At this point png_image_finish_read has cleaned up the
- * allocated data in png_image, and only the buffer needs to be
- * freed.
- *
- * Perform the remaining operations:
- */
- if (simpleover_process(&image, buffer, argc-argi, argv+argi))
- {
- /* Write the output: */
- if ((output != NULL &&
- png_image_write_to_file(&image, output,
- 0/*convert_to_8bit*/, buffer, 0/*row_stride*/,
- NULL/*colormap*/)) ||
- (output == NULL &&
- png_image_write_to_stdio(&image, stdout,
- 0/*convert_to_8bit*/, buffer, 0/*row_stride*/,
- NULL/*colormap*/)))
- result = 0;
-
- else
- fprintf(stderr, "simpleover: write %s: %s\n",
- output == NULL ? "stdout" : output, image.message);
- }
-
- /* else simpleover_process writes an error message */
- }
-
- else
- fprintf(stderr, "simpleover: read %s: %s\n", argv[1],
- image.message);
-
- free(buffer);
- }
-
- else
- {
- fprintf(stderr, "simpleover: out of memory: %lu bytes\n",
- (unsigned long)PNG_IMAGE_SIZE(image));
-
- /* This is the only place where a 'free' is required; libpng does
- * the cleanup on error and success, but in this case we couldn't
- * complete the read because of running out of memory.
- */
- png_image_free(&image);
- }
- }
-
- else
- {
- /* Failed to read the first argument: */
- fprintf(stderr, "simpleover: %s: %s\n", argv[1], image.message);
- }
- }
-
- else
- {
- /* Usage message */
- fprintf(stderr,
- "simpleover: usage: simpleover background.png [output.png]\n"
- " Output 'background.png' as a 24-bit RGB PNG file in 'output.png'\n"
- " or, if not given, stdout. 'background.png' will be composited\n"
- " on fully saturated green.\n"
- "\n"
- " Optionally, before output, process additional PNG files:\n"
- "\n"
- " --sprite=width,height,name {[--at=x,y] {sprite.png}}\n"
- " Produce a transparent sprite of size (width,height) and with\n"
- " name 'name'.\n"
- " For each sprite.png composite it using a Porter-Duff 'Over'\n"
- " operation at offset (x,y) in the sprite (defaulting to (0,0)).\n"
- " Input PNGs will be truncated to the area of the sprite.\n"
- "\n"
- " --add='name' {x,y}\n"
- " Optionally, before output, composite a sprite, 'name', which\n"
- " must have been previously produced using --sprite, at each\n"
- " offset (x,y) in the output image. Each sprite must fit\n"
- " completely within the output image.\n"
- "\n"
- " PNG files are processed in the order they occur on the command\n"
- " line and thus the first PNG processed appears as the bottommost\n"
- " in the output image.\n");
- }
-
- return result;
-}
-#endif /* SIMPLIFIED_READ */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/COPYING b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/COPYING
deleted file mode 100644
index a3e9774..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/COPYING
+++ /dev/null
@@ -1,340 +0,0 @@
- GNU GENERAL PUBLIC LICENSE
- Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
- 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
- Preamble
-
- The licenses for most software are designed to take away your
-freedom to share and change it. By contrast, the GNU General Public
-License is intended to guarantee your freedom to share and change free
-software--to make sure the software is free for all its users. This
-General Public License applies to most of the Free Software
-Foundation's software and to any other program whose authors commit to
-using it. (Some other Free Software Foundation software is covered by
-the GNU Library General Public License instead.) You can apply it to
-your programs, too.
-
- When we speak of free software, we are referring to freedom, not
-price. Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-this service if you wish), that you receive source code or can get it
-if you want it, that you can change the software or use pieces of it
-in new free programs; and that you know you can do these things.
-
- To protect your rights, we need to make restrictions that forbid
-anyone to deny you these rights or to ask you to surrender the rights.
-These restrictions translate to certain responsibilities for you if you
-distribute copies of the software, or if you modify it.
-
- For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must give the recipients all the rights that
-you have. You must make sure that they, too, receive or can get the
-source code. And you must show them these terms so they know their
-rights.
-
- We protect your rights with two steps: (1) copyright the software, and
-(2) offer you this license which gives you legal permission to copy,
-distribute and/or modify the software.
-
- Also, for each author's protection and ours, we want to make certain
-that everyone understands that there is no warranty for this free
-software. If the software is modified by someone else and passed on, we
-want its recipients to know that what they have is not the original, so
-that any problems introduced by others will not reflect on the original
-authors' reputations.
-
- Finally, any free program is threatened constantly by software
-patents. We wish to avoid the danger that redistributors of a free
-program will individually obtain patent licenses, in effect making the
-program proprietary. To prevent this, we have made it clear that any
-patent must be licensed for everyone's free use or not licensed at all.
-
- The precise terms and conditions for copying, distribution and
-modification follow.
-
- GNU GENERAL PUBLIC LICENSE
- TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-
- 0. This License applies to any program or other work which contains
-a notice placed by the copyright holder saying it may be distributed
-under the terms of this General Public License. The "Program", below,
-refers to any such program or work, and a "work based on the Program"
-means either the Program or any derivative work under copyright law:
-that is to say, a work containing the Program or a portion of it,
-either verbatim or with modifications and/or translated into another
-language. (Hereinafter, translation is included without limitation in
-the term "modification".) Each licensee is addressed as "you".
-
-Activities other than copying, distribution and modification are not
-covered by this License; they are outside its scope. The act of
-running the Program is not restricted, and the output from the Program
-is covered only if its contents constitute a work based on the
-Program (independent of having been made by running the Program).
-Whether that is true depends on what the Program does.
-
- 1. You may copy and distribute verbatim copies of the Program's
-source code as you receive it, in any medium, provided that you
-conspicuously and appropriately publish on each copy an appropriate
-copyright notice and disclaimer of warranty; keep intact all the
-notices that refer to this License and to the absence of any warranty;
-and give any other recipients of the Program a copy of this License
-along with the Program.
-
-You may charge a fee for the physical act of transferring a copy, and
-you may at your option offer warranty protection in exchange for a fee.
-
- 2. You may modify your copy or copies of the Program or any portion
-of it, thus forming a work based on the Program, and copy and
-distribute such modifications or work under the terms of Section 1
-above, provided that you also meet all of these conditions:
-
- a) You must cause the modified files to carry prominent notices
- stating that you changed the files and the date of any change.
-
- b) You must cause any work that you distribute or publish, that in
- whole or in part contains or is derived from the Program or any
- part thereof, to be licensed as a whole at no charge to all third
- parties under the terms of this License.
-
- c) If the modified program normally reads commands interactively
- when run, you must cause it, when started running for such
- interactive use in the most ordinary way, to print or display an
- announcement including an appropriate copyright notice and a
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- a warranty) and that users may redistribute the program under
- these conditions, and telling the user how to view a copy of this
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-
-These requirements apply to the modified work as a whole. If
-identifiable sections of that work are not derived from the Program,
-and can be reasonably considered independent and separate works in
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-distribute the same sections as part of a whole which is a work based
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-this License, whose permissions for other licensees extend to the
-entire whole, and thus to each and every part regardless of who wrote it.
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-Thus, it is not the intent of this section to claim rights or contest
-your rights to work written entirely by you; rather, the intent is to
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-
-In addition, mere aggregation of another work not based on the Program
-with the Program (or with a work based on the Program) on a volume of
-a storage or distribution medium does not bring the other work under
-the scope of this License.
-
- 3. You may copy and distribute the Program (or a work based on it,
-under Section 2) in object code or executable form under the terms of
-Sections 1 and 2 above provided that you also do one of the following:
-
- a) Accompany it with the complete corresponding machine-readable
- source code, which must be distributed under the terms of Sections
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- years, to give any third party, for a charge no more than your
- cost of physically performing source distribution, a complete
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-
- c) Accompany it with the information you received as to the offer
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-distribution of the source code, even though third parties are not
-compelled to copy the source along with the object code.
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- 4. You may not copy, modify, sublicense, or distribute the Program
-except as expressly provided under this License. Any attempt
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- 5. You are not required to accept this License, since you have not
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- 6. Each time you redistribute the Program (or any work based on the
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- 7. If, as a consequence of a court judgment or allegation of patent
-infringement or for any other reason (not limited to patent issues),
-conditions are imposed on you (whether by court order, agreement or
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-such claims; this section has the sole purpose of protecting the
-integrity of the free software distribution system, which is
-implemented by public license practices. Many people have made
-generous contributions to the wide range of software distributed
-through that system in reliance on consistent application of that
-system; it is up to the author/donor to decide if he or she is willing
-to distribute software through any other system and a licensee cannot
-impose that choice.
-
-This section is intended to make thoroughly clear what is believed to
-be a consequence of the rest of this License.
-
- 8. If the distribution and/or use of the Program is restricted in
-certain countries either by patents or by copyrighted interfaces, the
-original copyright holder who places the Program under this License
-may add an explicit geographical distribution limitation excluding
-those countries, so that distribution is permitted only in or among
-countries not thus excluded. In such case, this License incorporates
-the limitation as if written in the body of this License.
-
- 9. The Free Software Foundation may publish revised and/or new versions
-of the General Public License from time to time. Such new versions will
-be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-Each version is given a distinguishing version number. If the Program
-specifies a version number of this License which applies to it and "any
-later version", you have the option of following the terms and conditions
-either of that version or of any later version published by the Free
-Software Foundation. If the Program does not specify a version number of
-this License, you may choose any version ever published by the Free Software
-Foundation.
-
- 10. If you wish to incorporate parts of the Program into other free
-programs whose distribution conditions are different, write to the author
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-of preserving the free status of all derivatives of our free software and
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-
- NO WARRANTY
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- 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
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-TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
-PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
-REPAIR OR CORRECTION.
-
- 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
-REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
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-OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
-TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
-YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
-PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGES.
-
- END OF TERMS AND CONDITIONS
-
- How to Apply These Terms to Your New Programs
-
- If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
- To do so, attach the following notices to the program. It is safest
-to attach them to the start of each source file to most effectively
-convey the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
- <one line to give the program's name and a brief idea of what it does.>
- Copyright (C) <year> <name of author>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
-
-Also add information on how to contact you by electronic and paper mail.
-
-If the program is interactive, make it output a short notice like this
-when it starts in an interactive mode:
-
- Gnomovision version 69, Copyright (C) year name of author
- Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
- This is free software, and you are welcome to redistribute it
- under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License. Of course, the commands you use may
-be called something other than `show w' and `show c'; they could even be
-mouse-clicks or menu items--whatever suits your program.
-
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the program, if
-necessary. Here is a sample; alter the names:
-
- Yoyodyne, Inc., hereby disclaims all copyright interest in the program
- `Gnomovision' (which makes passes at compilers) written by James Hacker.
-
- <signature of Ty Coon>, 1 April 1989
- Ty Coon, President of Vice
-
-This General Public License does not permit incorporating your program into
-proprietary programs. If your program is a subroutine library, you may
-consider it more useful to permit linking proprietary applications with the
-library. If this is what you want to do, use the GNU Library General
-Public License instead of this License.
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/LICENSE b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/LICENSE
deleted file mode 100644
index d956717..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/LICENSE
+++ /dev/null
@@ -1,50 +0,0 @@
- ---------------------------------------------------------------------------
-
- Copyright (c) 1998-2008 Greg Roelofs. All rights reserved.
-
- This software is provided "as is," without warranty of any kind,
- express or implied. In no event shall the author or contributors
- be held liable for any damages arising in any way from the use of
- this software.
-
- The contents of this file are DUAL-LICENSED. You may modify and/or
- redistribute this software according to the terms of one of the
- following two licenses (at your option):
-
-
- LICENSE 1 ("BSD-like with advertising clause"):
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute
- it freely, subject to the following restrictions:
-
- 1. Redistributions of source code must retain the above copyright
- notice, disclaimer, and this list of conditions.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, disclaimer, and this list of conditions in the documenta-
- tion and/or other materials provided with the distribution.
- 3. All advertising materials mentioning features or use of this
- software must display the following acknowledgment:
-
- This product includes software developed by Greg Roelofs
- and contributors for the book, "PNG: The Definitive Guide,"
- published by O'Reilly and Associates.
-
-
- LICENSE 2 (GNU GPL v2 or later):
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- ---------------------------------------------------------------------------
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/Makefile.mingw32 b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/Makefile.mingw32
deleted file mode 100644
index 3a3ff60..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/Makefile.mingw32
+++ /dev/null
@@ -1,131 +0,0 @@
-# Sample makefile for rpng-win / rpng2-win / wpng using mingw32-gcc and make.
-# Greg Roelofs
-# Last modified: 2 June 2007
-#
-# The programs built by this makefile are described in the book,
-# "PNG: The Definitive Guide," by Greg Roelofs (O'Reilly and
-# Associates, 1999). Go buy a copy, eh? Well, OK, it's not
-# generally for sale anymore, but it's the thought that counts,
-# right? (Hint: http://www.libpng.org/pub/png/book/ )
-#
-# Invoke this makefile from a DOS-prompt window via:
-#
-# make -f Makefile.mingw32
-#
-# This makefile assumes libpng and zlib have already been built or downloaded
-# and are in subdirectories at the same level as the current subdirectory
-# (as indicated by the PNGDIR and ZDIR macros below). It makes no assumptions
-# at all about the mingw32 installation tree (W32DIR). Edit as appropriate.
-#
-# Note that the names of the dynamic and static libpng and zlib libraries
-# used below may change in later releases of the libraries. This makefile
-# builds both statically and dynamically linked executables by default.
-# (You need only one set, but for testing it can be handy to have both.)
-
-
-# macros --------------------------------------------------------------------
-
-#PNGDIR = ../..# for libpng-x.y.z/contrib/gregbook builds
-PNGDIR = ../libpng-win32
-PNGINC = -I$(PNGDIR)
-PNGLIBd = $(PNGDIR)/libpng.dll.a # dynamically linked
-PNGLIBs = $(PNGDIR)/libpng.a # statically linked, local libpng
-
-#ZDIR = ../../../zlib-win32# for libpng-x.y.z/contrib/gregbook builds
-ZDIR = ../zlib-win32
-ZINC = -I$(ZDIR)
-ZLIBd = $(ZDIR)/libzdll.a
-ZLIBs = $(ZDIR)/libz.a
-
-# change this to be the path where mingw32 installs its stuff:
-W32DIR =
-#W32DIR = /usr/local/cross-tools/i386-mingw32msvc
-W32INC = -I$(W32DIR)/include
-W32LIB = $(W32DIR)/lib/libuser32.a $(W32DIR)/lib/libgdi32.a
-
-CC = gcc
-#CC = i386-mingw32msvc-gcc # e.g., Linux -> Win32 cross-compilation
-LD = $(CC)
-RM = rm -f
-CPPFLAGS = $(INCS)
-CFLAGS = -O -Wall $(MINGW_CCFLAGS)
-# [note that -Wall is a gcc-specific compilation flag ("most warnings on")]
-# [-ansi, -pedantic and -W can also be used]
-LDFLAGS = $(MINGW_LDFLAGS)
-O = .o
-E = .exe
-
-INCS = $(PNGINC) $(ZINC) $(W32INC)
-RLIBSd = $(PNGLIBd) $(ZLIBd) $(W32LIB) -lm
-RLIBSs = $(PNGLIBs) $(ZLIBs) $(W32LIB) -lm
-WLIBSd = $(PNGLIBd) $(ZLIBd)
-WLIBSs = $(PNGLIBs) $(ZLIBs)
-
-RPNG = rpng-win
-RPNG2 = rpng2-win
-WPNG = wpng
-
-ROBJSd = $(RPNG)$(O) readpng.pic$(O)
-ROBJS2d = $(RPNG2)$(O) readpng2.pic$(O)
-WOBJSd = $(WPNG)$(O) writepng.pic$(O)
-
-RPNGs = $(RPNG)-static
-RPNG2s = $(RPNG2)-static
-WPNGs = $(WPNG)-static
-
-ROBJSs = $(RPNG)$(O) readpng$(O)
-ROBJS2s = $(RPNG2)$(O) readpng2$(O)
-WOBJSs = $(WPNG)$(O) writepng$(O)
-
-STATIC_EXES = $(RPNGs)$(E) $(RPNG2s)$(E) $(WPNGs)$(E)
-DYNAMIC_EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
-
-EXES = $(STATIC_EXES) $(DYNAMIC_EXES)
-
-
-# implicit make rules -------------------------------------------------------
-
-.c$(O):
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
-
-%.pic$(O): %.c
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -DPNG_BUILD_DLL -o $@ $<
-
-
-# dependencies --------------------------------------------------------------
-
-all: $(EXES)
-
-$(RPNGs)$(E): $(ROBJSs)
- $(LD) $(LDFLAGS) -o $@ $(ROBJSs) $(RLIBSs)
-
-$(RPNG)$(E): $(ROBJSd)
- $(LD) $(LDFLAGS) -o $@ $(ROBJSd) $(RLIBSd)
-
-$(RPNG2s)$(E): $(ROBJS2s)
- $(LD) $(LDFLAGS) -o $@ $(ROBJS2s) $(RLIBSs)
-
-$(RPNG2)$(E): $(ROBJS2d)
- $(LD) $(LDFLAGS) -o $@ $(ROBJS2d) $(RLIBSd)
-
-$(WPNGs)$(E): $(WOBJSs)
- $(LD) $(LDFLAGS) -o $@ $(WOBJSs) $(WLIBSs)
-
-$(WPNG)$(E): $(WOBJSd)
- $(LD) $(LDFLAGS) -o $@ $(WOBJSd) $(WLIBSd)
-
-$(RPNG)$(O): $(RPNG).c readpng.h
-$(RPNG2)$(O): $(RPNG2).c readpng2.h
-$(WPNG)$(O): $(WPNG).c writepng.h
-
-readpng$(O) readpng.pic$(O): readpng.c readpng.h
-readpng2$(O) readpng2.pic$(O): readpng2.c readpng2.h
-writepng$(O) writepng.pic$(O): writepng.c writepng.h
-
-
-# maintenance ---------------------------------------------------------------
-
-clean:
- $(RM) $(EXES)
- $(RM) $(ROBJSs) $(ROBJS2s) $(WOBJSs)
- $(RM) $(ROBJSd) $(ROBJS2d) $(WOBJSd)
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/Makefile.sgi b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/Makefile.sgi
deleted file mode 100644
index 94d61b4..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/Makefile.sgi
+++ /dev/null
@@ -1,105 +0,0 @@
-# Sample makefile for rpng-x / rpng2-x / wpng for SGI using cc and make.
-# Greg Roelofs
-# Last modified: 7 March 2002
-#
-# The programs built by this makefile are described in the book,
-# "PNG: The Definitive Guide," by Greg Roelofs (O'Reilly and
-# Associates, 1999). Go buy a copy, eh? Buy some for friends
-# and family, too. (Not that this is a blatant plug or anything.)
-#
-# Invoke this makefile from a shell prompt in the usual way; for example:
-#
-# make -f Makefile.sgi
-#
-# This makefile assumes libpng and zlib have already been built or downloaded
-# and are both installed in /usr/local/{include,lib} (as indicated by the
-# PNG* and Z* macros below). Edit as appropriate--choose only ONE each of
-# the PNGINC, PNGLIB, ZINC and ZLIB lines.
-#
-# This makefile builds dynamically linked executables (against libpng and zlib,
-# that is), but that can be changed by uncommenting the appropriate PNGLIB and
-# ZLIB lines.
-
-
-# macros --------------------------------------------------------------------
-
-PNGINC = -I/usr/local/include/libpng16
-PNGLIB = -L/usr/local/lib -lpng16 # dynamically linked against libpng
-#PNGLIB = /usr/local/lib/libpng16.a # statically linked against libpng
-# or:
-#PNGINC = -I../..
-#PNGLIB = -L../.. -lpng
-#PNGLIB = ../../libpng.a
-
-ZINC = -I/usr/local/include
-ZLIB = -L/usr/local/lib -lz # dynamically linked against zlib
-#ZLIB = /usr/local/lib/libz.a # statically linked against zlib
-#ZINC = -I../zlib
-#ZLIB = -L../zlib -lz
-#ZLIB = ../../../zlib/libz.a
-
-XINC = -I/usr/include/X11 # old-style, stock X distributions
-XLIB = -L/usr/lib/X11 -lX11
-#XINC = -I/usr/openwin/include # Sun workstations (OpenWindows)
-#XLIB = -L/usr/openwin/lib -lX11
-#XINC = -I/usr/X11R6/include # new X distributions (XFree86, etc.)
-#XLIB = -L/usr/X11R6/lib -lX11
-
-INCS = $(PNGINC) $(ZINC) $(XINC)
-RLIBS = $(PNGLIB) $(ZLIB) $(XLIB) -lm
-WLIBS = $(PNGLIB) $(ZLIB)
-
-CC = cc
-LD = cc
-RM = rm -f
-# ABI must be the same as that used to build libpng.
-ABI =
-CPPFLAGS =
-CFLAGS = $(ABI) -O -fullwarn $(INCS)
-LDFLAGS = $(ABI)
-O = .o
-E =
-
-RPNG = rpng-x
-RPNG2 = rpng2-x
-WPNG = wpng
-
-ROBJS = $(RPNG)$(O) readpng$(O)
-ROBJS2 = $(RPNG2)$(O) readpng2$(O)
-WOBJS = $(WPNG)$(O) writepng$(O)
-
-EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
-
-
-# implicit make rules -------------------------------------------------------
-
-.c$(O):
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
-
-
-# dependencies --------------------------------------------------------------
-
-all: $(EXES)
-
-$(RPNG)$(E): $(ROBJS)
- $(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBS)
-
-$(RPNG2)$(E): $(ROBJS2)
- $(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBS)
-
-$(WPNG)$(E): $(WOBJS)
- $(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBS)
-
-$(RPNG)$(O): $(RPNG).c readpng.h
-$(RPNG2)$(O): $(RPNG2).c readpng2.h
-$(WPNG)$(O): $(WPNG).c writepng.h
-
-readpng$(O): readpng.c readpng.h
-readpng2$(O): readpng2.c readpng2.h
-writepng$(O): writepng.c writepng.h
-
-
-# maintenance ---------------------------------------------------------------
-
-clean:
- $(RM) $(EXES) $(ROBJS) $(ROBJS2) $(WOBJS)
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/Makefile.unx b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/Makefile.unx
deleted file mode 100644
index 1a73e03..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/Makefile.unx
+++ /dev/null
@@ -1,134 +0,0 @@
-# Sample makefile for rpng-x / rpng2-x / wpng using gcc and make.
-# Greg Roelofs
-# Last modified: 2 June 2007
-#
-# The programs built by this makefile are described in the book,
-# "PNG: The Definitive Guide," by Greg Roelofs (O'Reilly and
-# Associates, 1999). Go buy a copy, eh? Well, OK, it's not
-# generally for sale anymore, but it's the thought that counts,
-# right? (Hint: http://www.libpng.org/pub/png/book/ )
-#
-# Invoke this makefile from a shell prompt in the usual way; for example:
-#
-# make -f Makefile.unx
-#
-# This makefile assumes libpng and zlib have already been built or downloaded
-# and are installed in /usr/local/{include,lib} or as otherwise indicated by
-# the PNG* and Z* macros below. Edit as appropriate--choose only ONE each of
-# the PNGINC, PNGLIBd, PNGLIBs, ZINC, ZLIBd and ZLIBs lines.
-#
-# This makefile builds both dynamically and statically linked executables
-# (against libpng and zlib, that is), but that can be changed by modifying
-# the "EXES =" line. (You need only one set, but for testing it can be handy
-# to have both.)
-
-
-# macros --------------------------------------------------------------------
-
-#PNGDIR = /usr/local/lib
-#PNGINC = -I/usr/local/include/libpng16
-#PNGLIBd = -L$(PNGDIR) -lpng16 # dynamically linked, installed libpng
-#PNGLIBs = $(PNGDIR)/libpng16.a # statically linked, installed libpng
-# or:
-PNGDIR = ../..# this one is for libpng-x.y.z/contrib/gregbook builds
-#PNGDIR = ../libpng
-PNGINC = -I$(PNGDIR)
-PNGLIBd = -Wl,-rpath,$(PNGDIR) -L$(PNGDIR) -lpng16 # dynamically linked
-PNGLIBs = $(PNGDIR)/libpng.a # statically linked, local libpng
-
-ZDIR = /usr/local/lib
-#ZDIR = /usr/lib64
-ZINC = -I/usr/local/include
-ZLIBd = -L$(ZDIR) -lz # dynamically linked against zlib
-ZLIBs = $(ZDIR)/libz.a # statically linked against zlib
-# or:
-#ZDIR = ../zlib
-#ZINC = -I$(ZDIR)
-#ZLIBd = -Wl,-rpath,$(ZDIR) -L$(ZDIR) -lz # -rpath allows in-place testing
-#ZLIBs = $(ZDIR)/libz.a
-
-#XINC = -I/usr/include # old-style, stock X distributions
-#XLIB = -L/usr/lib/X11 -lX11 # (including SGI IRIX)
-#XINC = -I/usr/openwin/include # Sun workstations (OpenWindows)
-#XLIB = -L/usr/openwin/lib -lX11
-XINC = -I/usr/X11R6/include # new X distributions (X.org, etc.)
-XLIB = -L/usr/X11R6/lib -lX11
-#XLIB = -L/usr/X11R6/lib64 -lX11 # e.g., Red Hat on AMD64
-
-INCS = $(PNGINC) $(ZINC) $(XINC)
-RLIBSd = $(PNGLIBd) $(ZLIBd) $(XLIB) -lm
-RLIBSs = $(PNGLIBs) $(ZLIBs) $(XLIB) -lm
-WLIBSd = $(PNGLIBd) $(ZLIBd) -lm
-WLIBSs = $(PNGLIBs) $(ZLIBs) -lm
-
-CC = gcc
-LD = gcc
-RM = rm -f
-CPPFLAGS = $(INCS) -DFEATURE_LOOP
-CFLAGS = -O -Wall
-#CFLAGS = -O -W -Wall -Wextra -pedantic -ansi
-# [note that -Wall is a gcc-specific compilation flag ("most warnings on")]
-# [-ansi, -pedantic, -Wextra, and -W can also be used]
-LDFLAGS =
-O = .o
-E =
-
-RPNG = rpng-x
-RPNG2 = rpng2-x
-WPNG = wpng
-
-RPNGs = $(RPNG)-static
-RPNG2s = $(RPNG2)-static
-WPNGs = $(WPNG)-static
-
-ROBJS = $(RPNG)$(O) readpng$(O)
-ROBJS2 = $(RPNG2)$(O) readpng2$(O)
-WOBJS = $(WPNG)$(O) writepng$(O)
-
-STATIC_EXES = $(RPNGs)$(E) $(RPNG2s)$(E) $(WPNGs)$(E)
-DYNAMIC_EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
-
-EXES = $(STATIC_EXES) $(DYNAMIC_EXES)
-
-
-# implicit make rules -------------------------------------------------------
-
-.c$(O):
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
-
-
-# dependencies --------------------------------------------------------------
-
-all: $(EXES)
-
-$(RPNGs)$(E): $(ROBJS)
- $(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBSs)
-
-$(RPNG)$(E): $(ROBJS)
- $(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBSd)
-
-$(RPNG2s)$(E): $(ROBJS2)
- $(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBSs)
-
-$(RPNG2)$(E): $(ROBJS2)
- $(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBSd)
-
-$(WPNGs)$(E): $(WOBJS)
- $(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBSs)
-
-$(WPNG)$(E): $(WOBJS)
- $(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBSd)
-
-$(RPNG)$(O): $(RPNG).c readpng.h
-$(RPNG2)$(O): $(RPNG2).c readpng2.h
-$(WPNG)$(O): $(WPNG).c writepng.h
-
-readpng$(O): readpng.c readpng.h
-readpng2$(O): readpng2.c readpng2.h
-writepng$(O): writepng.c writepng.h
-
-
-# maintenance ---------------------------------------------------------------
-
-clean:
- $(RM) $(EXES) $(ROBJS) $(ROBJS2) $(WOBJS)
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/Makefile.w32 b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/Makefile.w32
deleted file mode 100644
index ab7dcf7..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/Makefile.w32
+++ /dev/null
@@ -1,114 +0,0 @@
-# Sample makefile for rpng-win / rpng2-win / wpng using MSVC and NMAKE.
-# Greg Roelofs
-# Last modified: 2 June 2007
-#
-# The programs built by this makefile are described in the book,
-# "PNG: The Definitive Guide," by Greg Roelofs (O'Reilly and
-# Associates, 1999). Go buy a copy, eh? Well, OK, it's not
-# generally for sale anymore, but it's the thought that counts,
-# right? (Hint: http://www.libpng.org/pub/png/book/ )
-#
-# Invoke this makefile from a DOS prompt window via:
-#
-# %devstudio%\vc\bin\vcvars32.bat
-# nmake -nologo -f Makefile.w32
-#
-# where %devstudio% is the installation directory for MSVC / DevStudio. If
-# you get "environment out of space" errors, create a desktop shortcut with
-# "c:\windows\command.com /e:4096" as the program command line and set the
-# working directory to this directory. Then double-click to open the new
-# DOS-prompt window with a bigger environment and retry the commands above.
-#
-# This makefile assumes libpng and zlib have already been built or downloaded
-# and are in subdirectories at the same level as the current subdirectory
-# (as indicated by the PNGPATH and ZPATH macros below). Edit as appropriate.
-#
-# Note that the names of the dynamic and static libpng and zlib libraries
-# used below may change in later releases of the libraries. This makefile
-# builds statically linked executables, but that can be changed by uncom-
-# menting the appropriate PNGLIB and ZLIB lines.
-
-!include <ntwin32.mak>
-
-
-# macros --------------------------------------------------------------------
-
-PNGPATH = ../libpng
-PNGINC = -I$(PNGPATH)
-#PNGLIB = $(PNGPATH)/pngdll.lib
-PNGLIB = $(PNGPATH)/libpng.lib
-
-ZPATH = ../zlib
-ZINC = -I$(ZPATH)
-#ZLIB = $(ZPATH)/zlibdll.lib
-ZLIB = $(ZPATH)/zlibstat.lib
-
-WINLIBS = -defaultlib:user32.lib gdi32.lib
-# ["real" apps may also need comctl32.lib, comdlg32.lib, winmm.lib, etc.]
-
-INCS = $(PNGINC) $(ZINC)
-RLIBS = $(PNGLIB) $(ZLIB) $(WINLIBS)
-WLIBS = $(PNGLIB) $(ZLIB)
-
-CC = cl
-LD = link
-RM = del
-CPPFLAGS = $(INCS)
-CFLAGS = -nologo -O -W3 $(cvars)
-# [note that -W3 is an MSVC-specific compilation flag ("all warnings on")]
-# [see %devstudio%\vc\include\win32.mak for cvars macro definition]
-O = .obj
-E = .exe
-
-RLDFLAGS = -nologo -subsystem:windows
-WLDFLAGS = -nologo
-
-RPNG = rpng-win
-RPNG2 = rpng2-win
-WPNG = wpng
-
-ROBJS = $(RPNG)$(O) readpng$(O)
-ROBJS2 = $(RPNG2)$(O) readpng2$(O)
-WOBJS = $(WPNG)$(O) writepng$(O)
-
-EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
-
-
-# implicit make rules -------------------------------------------------------
-
-.c$(O):
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
-
-
-# dependencies --------------------------------------------------------------
-
-all: $(EXES)
-
-$(RPNG)$(E): $(ROBJS)
- $(LD) $(RLDFLAGS) -out:$@ $(ROBJS) $(RLIBS)
-
-$(RPNG2)$(E): $(ROBJS2)
- $(LD) $(RLDFLAGS) -out:$@ $(ROBJS2) $(RLIBS)
-
-$(WPNG)$(E): $(WOBJS)
- $(LD) $(WLDFLAGS) -out:$@ $(WOBJS) $(WLIBS)
-
-$(RPNG)$(O): $(RPNG).c readpng.h
-$(RPNG2)$(O): $(RPNG2).c readpng2.h
-$(WPNG)$(O): $(WPNG).c writepng.h
-
-readpng$(O): readpng.c readpng.h
-readpng2$(O): readpng2.c readpng2.h
-writepng$(O): writepng.c writepng.h
-
-
-# maintenance ---------------------------------------------------------------
-
-clean:
-# ideally we could just do this:
-# $(RM) $(EXES) $(ROBJS) $(ROBJS2) $(WOBJS)
-# ...but the Windows "DEL" command is none too bright, so:
- $(RM) r*$(E)
- $(RM) w*$(E)
- $(RM) r*$(O)
- $(RM) w*$(O)
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/README b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/README
deleted file mode 100644
index 90e28f7..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/README
+++ /dev/null
@@ -1,186 +0,0 @@
- ===========================
- PNG: The Definitive Guide
- ===========================
-
- Source Code
-
-Chapters 13, 14 and 15 of "PNG: The Definitive Guide" discuss three free,
-cross-platform demo programs that show how to use the libpng reference
-library: rpng, rpng2 and wpng. rpng and rpng2 are viewers; the first is
-a very simple example that that shows how a standard file-viewer might use
-libpng, while the second is designed to process streaming data and shows
-how a web browser might be written. wpng is a simple command-line program
-that reads binary PGM and PPM files (the ``raw'' grayscale and RGB subsets
-of PBMPLUS/NetPBM) and converts them to PNG.
-
-The source code for all three demo programs currently compiles under
-Unix, OpenVMS, and 32-bit Windows. (Special thanks to Martin Zinser,
-zinser at decus.de, for making the necessary changes for OpenVMS and for
-providing an appropriate build script.) Build instructions can be found
-below.
-
-Files:
-
- README this file
- LICENSE terms of distribution and reuse (BSD-like or GNU GPL)
- COPYING GNU General Public License (GPL)
-
- Makefile.unx Unix makefile
- Makefile.w32 Windows (MSVC) makefile
- makevms.com OpenVMS build script
-
- rpng-win.c Windows front end for the basic viewer
- rpng-x.c X Window System (Unix, OpenVMS) front end
- readpng.c generic back end for the basic viewer
- readpng.h header file for the basic viewer
-
- rpng2-win.c Windows front end for the progressive viewer
- rpng2-x.c X front end for the progressive viewer
- readpng2.c generic back end for the progressive viewer
- readpng2.h header file for the progressive viewer
-
- wpng.c generic (text) front end for the converter
- writepng.c generic back end for the converter
- writepng.h header file for the converter
-
- toucan.png transparent PNG for testing (by Stefan Schneider)
-
-Note that, although the programs are designed to be functional, their
-primary purpose is to illustrate how to use libpng to add PNG support to
-other programs. As such, their user interfaces are crude and definitely
-are not intended for everyday use.
-
-Please see http://www.libpng.org/pub/png/pngbook.html for further infor-
-mation and links to the latest version of the source code, and Chapters
-13-15 of the book for detailed discussion of the three programs.
-
-Greg Roelofs
-https://pobox.com/~newt/greg_contact.html
-16 March 2008
-
-
-BUILD INSTRUCTIONS
-
- - Prerequisites (in order of compilation):
-
- - zlib https://zlib.net/
- - libpng http://www.libpng.org/pub/png/libpng.html
- - pngbook http://www.libpng.org/pub/png/book/sources.html
-
- The pngbook demo programs are explicitly designed to demonstrate proper
- coding techniques for using the libpng reference library. As a result,
- you need to download and build both zlib (on which libpng depends) and
- libpng. A common build setup is to place the zlib, libpng and pngbook
- subdirectory trees ("folders") in the same parent directory. Then the
- libpng build can refer to files in ../zlib (or ..\zlib or [-.zlib]),
- and similarly for the pngbook build.
-
- Note that all three packages are designed to be built from a command
- line by default; those who wish to use a graphical or other integrated
- development environments are on their own.
-
-
- - Unix:
-
- Unpack the latest pngbook sources (which should correspond to this
- README file) into a directory and change into that directory.
-
- Copy Makefile.unx to Makefile and edit the PNG* and Z* variables
- appropriately (possibly also the X* variables if necessary).
-
- make
-
- There is no "install" target, so copy the three executables somewhere
- in your path or run them from the current directory. All three will
- print a basic usage screen when run without any command-line arguments;
- see the book for more details.
-
-
- - Windows:
-
- Unpack the latest pngbook sources (which should correspond to this
- README file) into a folder, open a "DOS shell" or "command prompt"
- or equivalent command-line window, and cd into the folder where you
- unpacked the source code.
-
- For MSVC, set up the necessary environment variables by invoking
-
- %devstudio%\vc\bin\vcvars32.bat
-
- where where %devstudio% is the installation directory for MSVC /
- DevStudio. If you get "environment out of space" errors under 95/98,
- create a desktop shortcut with "c:\windows\command.com /e:4096" as
- the program command line and set the working directory to the pngbook
- directory. Then double-click to open the new DOS-prompt window with
- a bigger environment and retry the commands above.
-
- Copy Makefile.w32 to Makefile and edit the PNGPATH and ZPATH variables
- appropriately (possibly also the "INC" and "LIB" variables if needed).
- Note that the names of the dynamic and static libpng and zlib libraries
- used in the makefile may change in later releases of the libraries.
- Also note that, as of libpng version 1.0.5, MSVC DLL builds do not work.
- This makefile therefore builds statically linked executables, but if
- the DLL problems ever get fixed, uncommenting the appropriate PNGLIB
- and ZLIB lines will build dynamically linked executables instead.
-
- Do the build by typing
-
- nmake
-
- The result should be three executables: rpng-win.exe, rpng2-win.exe,
- and wpng.exe. Copy them somewhere in your PATH or run them from the
- current folder. Like the Unix versions, the two windowed programs
- (rpng and rpng2) now display a usage screen in a console window when
- invoked without command-line arguments; this is new behavior as of
- the June 2001 release. Note that the programs use the Unix-style "-"
- character to specify options, instead of the more common DOS/Windows
- "/" character. (For example: "rpng2-win -bgpat 4 foo.png", not
- "rpng2-win /bgpat 4 foo.png")
-
-
- - OpenVMS:
-
- Unpack the pngbook sources into a subdirectory and change into that
- subdirectory.
-
- Edit makevms.com appropriately, specifically the zpath and pngpath
- variables.
-
- @makevms
-
- To run the programs, they probably first need to be set up as "foreign
- symbols," with "disk" and "dir" set appropriately:
-
- $ rpng == "$disk:[dir]rpng-x.exe"
- $ rpng2 == "$disk:[dir]rpng2-x.exe"
- $ wpng == "$disk:[dir]wpng.exe"
-
- All three will print a basic usage screen when run without any command-
- line arguments; see the book for more details. Note that the options
- style is Unix-like, i.e., preceded by "-" rather than "/".
-
-
-RUNNING THE PROGRAMS: (VERY) BRIEF INTRO
-
- rpng is a simple PNG viewer that can display transparent PNGs with a
- specified background color; for example,
-
- rpng -bgcolor \#ff0000 toucan.png
-
- would display the image with a red background. rpng2 is a progressive
- viewer that simulates a web browser in some respects; it can display
- images against either a background color or a dynamically generated
- background image. For example:
-
- rpng2 -bgpat 16 toucan.png
-
- wpng is a purely command-line image converter from binary PBMPLUS/NetPBM
- format (.pgm or .ppm) to PNG; for example,
-
- wpng -time < toucan-notrans.ppm > toucan-notrans.png
-
- would convert the specified PPM file (using redirection) to PNG, auto-
- matically setting the PNG modification-time chunk.
-
- All options can be abbreviated to the shortest unique value; for example,
- "-bgc" for -bgcolor (versus "-bgp" for -bgpat), or "-g" for -gamma.
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/makevms.com b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/makevms.com
deleted file mode 100644
index f32bcab..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/makevms.com
+++ /dev/null
@@ -1,132 +0,0 @@
-$!------------------------------------------------------------------------------
-$! make "PNG: The Definitive Guide" demo programs (for X) under OpenVMS
-$!
-$! Script created by Martin Zinser for libpng; modified by Greg Roelofs
-$! for standalone pngbook source distribution.
-$!
-$!
-$! Set locations where zlib and libpng sources live.
-$!
-$ zpath = ""
-$ pngpath = ""
-$!
-$ if f$search("[---.zlib]zlib.h").nes."" then zpath = "[---.zlib]"
-$ if f$search("[--]png.h").nes."" then pngpath = "[--]"
-$!
-$ if f$search("[-.zlib]zlib.h").nes."" then zpath = "[-.zlib]"
-$ if f$search("[-.libpng]png.h").nes."" then pngpath = "[-.libpng]"
-$!
-$ if zpath .eqs. ""
-$ then
-$ write sys$output "zlib include not found. Exiting..."
-$ exit 2
-$ endif
-$!
-$ if pngpath .eqs. ""
-$ then
-$ write sys$output "libpng include not found. Exiting..."
-$ exit 2
-$ endif
-$!
-$! Look for the compiler used.
-$!
-$ ccopt="/include=(''zpath',''pngpath')"
-$ if f$getsyi("HW_MODEL").ge.1024
-$ then
-$ ccopt = "/prefix=all"+ccopt
-$ comp = "__decc__=1"
-$ if f$trnlnm("SYS").eqs."" then define sys sys$library:
-$ else
-$ if f$search("SYS$SYSTEM:DECC$COMPILER.EXE").eqs.""
-$ then
-$ if f$trnlnm("SYS").eqs."" then define sys sys$library:
-$ if f$search("SYS$SYSTEM:VAXC.EXE").eqs.""
-$ then
-$ comp = "__gcc__=1"
-$ CC :== GCC
-$ else
-$ comp = "__vaxc__=1"
-$ endif
-$ else
-$ if f$trnlnm("SYS").eqs."" then define sys decc$library_include:
-$ ccopt = "/decc/prefix=all"+ccopt
-$ comp = "__decc__=1"
-$ endif
-$ endif
-$ open/write lopt lib.opt
-$ write lopt "''pngpath'libpng.olb/lib"
-$ write lopt "''zpath'libz.olb/lib"
-$ close lopt
-$ open/write xopt x11.opt
-$ write xopt "sys$library:decw$xlibshr.exe/share"
-$ close xopt
-$!
-$! Build 'em.
-$!
-$ write sys$output "Compiling PNG book programs ..."
-$ CALL MAKE readpng.OBJ "cc ''CCOPT' readpng" -
- readpng.c readpng.h
-$ CALL MAKE readpng2.OBJ "cc ''CCOPT' readpng2" -
- readpng2.c readpng2.h
-$ CALL MAKE writepng.OBJ "cc ''CCOPT' writepng" -
- writepng.c writepng.h
-$ write sys$output "Building rpng-x..."
-$ CALL MAKE rpng-x.OBJ "cc ''CCOPT' rpng-x" -
- rpng-x.c readpng.h
-$ call make rpng-x.exe -
- "LINK rpng-x,readpng,lib.opt/opt,x11.opt/opt" -
- rpng-x.obj readpng.obj
-$ write sys$output "Building rpng2-x..."
-$ CALL MAKE rpng2-x.OBJ "cc ''CCOPT' rpng2-x" -
- rpng2-x.c readpng2.h
-$ call make rpng2-x.exe -
- "LINK rpng2-x,readpng2,lib.opt/opt,x11.opt/opt" -
- rpng2-x.obj readpng2.obj
-$ write sys$output "Building wpng..."
-$ CALL MAKE wpng.OBJ "cc ''CCOPT' wpng" -
- wpng.c writepng.h
-$ call make wpng.exe -
- "LINK wpng,writepng,lib.opt/opt" -
- wpng.obj writepng.obj
-$ exit
-$!
-$!
-$MAKE: SUBROUTINE !SUBROUTINE TO CHECK DEPENDENCIES
-$ V = 'F$Verify(0)
-$! P1 = What we are trying to make
-$! P2 = Command to make it
-$! P3 - P8 What it depends on
-$
-$ If F$Search(P1) .Eqs. "" Then Goto Makeit
-$ Time = F$CvTime(F$File(P1,"RDT"))
-$arg=3
-$Loop:
-$ Argument = P'arg
-$ If Argument .Eqs. "" Then Goto Exit
-$ El=0
-$Loop2:
-$ File = F$Element(El," ",Argument)
-$ If File .Eqs. " " Then Goto Endl
-$ AFile = ""
-$Loop3:
-$ OFile = AFile
-$ AFile = F$Search(File)
-$ If AFile .Eqs. "" .Or. AFile .Eqs. OFile Then Goto NextEl
-$ If F$CvTime(F$File(AFile,"RDT")) .Ges. Time Then Goto Makeit
-$ Goto Loop3
-$NextEL:
-$ El = El + 1
-$ Goto Loop2
-$EndL:
-$ arg=arg+1
-$ If arg .Le. 8 Then Goto Loop
-$ Goto Exit
-$
-$Makeit:
-$ VV=F$VERIFY(0)
-$ write sys$output P2
-$ 'P2
-$ VV='F$Verify(VV)
-$Exit:
-$ If V Then Set Verify
-$ENDSUBROUTINE
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/readpng.c b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/readpng.c
deleted file mode 100644
index fad9b53..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/readpng.c
+++ /dev/null
@@ -1,323 +0,0 @@
-/*---------------------------------------------------------------------------
-
- rpng - simple PNG display program readpng.c
-
- ---------------------------------------------------------------------------
-
- Copyright (c) 1998-2007,2017 Greg Roelofs. All rights reserved.
-
- This software is provided "as is," without warranty of any kind,
- express or implied. In no event shall the author or contributors
- be held liable for any damages arising in any way from the use of
- this software.
-
- The contents of this file are DUAL-LICENSED. You may modify and/or
- redistribute this software according to the terms of one of the
- following two licenses (at your option):
-
-
- LICENSE 1 ("BSD-like with advertising clause"):
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute
- it freely, subject to the following restrictions:
-
- 1. Redistributions of source code must retain the above copyright
- notice, disclaimer, and this list of conditions.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, disclaimer, and this list of conditions in the documenta-
- tion and/or other materials provided with the distribution.
- 3. All advertising materials mentioning features or use of this
- software must display the following acknowledgment:
-
- This product includes software developed by Greg Roelofs
- and contributors for the book, "PNG: The Definitive Guide,"
- published by O'Reilly and Associates.
-
-
- LICENSE 2 (GNU GPL v2 or later):
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- ---------------------------------------------------------------------------*/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <zlib.h>
-
-#include "png.h" /* libpng header */
-#include "readpng.h" /* typedefs, common macros, public prototypes */
-
-/* future versions of libpng will provide this macro: */
-#ifndef png_jmpbuf
-# define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
-#endif
-
-
-static png_structp png_ptr = NULL;
-static png_infop info_ptr = NULL;
-
-png_uint_32 width, height;
-int bit_depth, color_type;
-uch *image_data = NULL;
-
-
-void readpng_version_info(void)
-{
- fprintf(stderr, " Compiled with libpng %s; using libpng %s.\n",
- PNG_LIBPNG_VER_STRING, png_libpng_ver);
- fprintf(stderr, " Compiled with zlib %s; using zlib %s.\n",
- ZLIB_VERSION, zlib_version);
-}
-
-
-/* return value = 0 for success, 1 for bad sig, 2 for bad IHDR, 4 for no mem */
-
-int readpng_init(FILE *infile, ulg *pWidth, ulg *pHeight)
-{
- uch sig[8];
-
-
- /* first do a quick check that the file really is a PNG image; could
- * have used slightly more general png_sig_cmp() function instead */
-
- fread(sig, 1, 8, infile);
- if (png_sig_cmp(sig, 0, 8))
- return 1; /* bad signature */
-
-
- /* could pass pointers to user-defined error handlers instead of NULLs: */
-
- png_ptr = png_create_read_struct(png_get_libpng_ver(NULL), NULL, NULL,
- NULL);
- if (!png_ptr)
- return 4; /* out of memory */
-
- info_ptr = png_create_info_struct(png_ptr);
- if (!info_ptr) {
- png_destroy_read_struct(&png_ptr, NULL, NULL);
- return 4; /* out of memory */
- }
-
-
- /* we could create a second info struct here (end_info), but it's only
- * useful if we want to keep pre- and post-IDAT chunk info separated
- * (mainly for PNG-aware image editors and converters) */
-
-
- /* setjmp() must be called in every function that calls a PNG-reading
- * libpng function */
-
- if (setjmp(png_jmpbuf(png_ptr))) {
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- return 2;
- }
-
-
- png_init_io(png_ptr, infile);
- png_set_sig_bytes(png_ptr, 8); /* we already read the 8 signature bytes */
-
- png_read_info(png_ptr, info_ptr); /* read all PNG info up to image data */
-
-
- /* alternatively, could make separate calls to png_get_image_width(),
- * etc., but want bit_depth and color_type for later [don't care about
- * compression_type and filter_type => NULLs] */
-
- png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
- NULL, NULL, NULL);
- *pWidth = width;
- *pHeight = height;
-
-
- /* OK, that's all we need for now; return happy */
-
- return 0;
-}
-
-
-
-
-/* returns 0 if succeeds, 1 if fails due to no bKGD chunk, 2 if libpng error;
- * scales values to 8-bit if necessary */
-
-int readpng_get_bgcolor(uch *red, uch *green, uch *blue)
-{
- png_color_16p pBackground;
-
-
- /* setjmp() must be called in every function that calls a PNG-reading
- * libpng function */
-
- if (setjmp(png_jmpbuf(png_ptr))) {
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- return 2;
- }
-
-
- if (!png_get_valid(png_ptr, info_ptr, PNG_INFO_bKGD))
- return 1;
-
- /* it is not obvious from the libpng documentation, but this function
- * takes a pointer to a pointer, and it always returns valid red, green
- * and blue values, regardless of color_type: */
-
- png_get_bKGD(png_ptr, info_ptr, &pBackground);
-
-
- /* however, it always returns the raw bKGD data, regardless of any
- * bit-depth transformations, so check depth and adjust if necessary */
-
- if (bit_depth == 16) {
- *red = pBackground->red >> 8;
- *green = pBackground->green >> 8;
- *blue = pBackground->blue >> 8;
- } else if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) {
- if (bit_depth == 1)
- *red = *green = *blue = pBackground->gray? 255 : 0;
- else if (bit_depth == 2)
- *red = *green = *blue = (255/3) * pBackground->gray;
- else /* bit_depth == 4 */
- *red = *green = *blue = (255/15) * pBackground->gray;
- } else {
- *red = (uch)pBackground->red;
- *green = (uch)pBackground->green;
- *blue = (uch)pBackground->blue;
- }
-
- return 0;
-}
-
-
-
-
-/* display_exponent == LUT_exponent * CRT_exponent */
-
-uch *readpng_get_image(double display_exponent, int *pChannels, ulg *pRowbytes)
-{
- double gamma;
- png_uint_32 i, rowbytes;
- png_bytepp row_pointers = NULL;
-
-
- /* setjmp() must be called in every function that calls a PNG-reading
- * libpng function */
-
- if (setjmp(png_jmpbuf(png_ptr))) {
- free(image_data);
- image_data = NULL;
- free(row_pointers);
- row_pointers = NULL;
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- return NULL;
- }
-
-
- /* expand palette images to RGB, low-bit-depth grayscale images to 8 bits,
- * transparency chunks to full alpha channel; strip 16-bit-per-sample
- * images to 8 bits per sample; and convert grayscale to RGB[A] */
-
- if (color_type == PNG_COLOR_TYPE_PALETTE)
- png_set_expand(png_ptr);
- if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
- png_set_expand(png_ptr);
- if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS))
- png_set_expand(png_ptr);
-#ifdef PNG_READ_16_TO_8_SUPPORTED
- if (bit_depth == 16)
-# ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
- png_set_scale_16(png_ptr);
-# else
- png_set_strip_16(png_ptr);
-# endif
-#endif
- if (color_type == PNG_COLOR_TYPE_GRAY ||
- color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- png_set_gray_to_rgb(png_ptr);
-
-
- /* unlike the example in the libpng documentation, we have *no* idea where
- * this file may have come from--so if it doesn't have a file gamma, don't
- * do any correction ("do no harm") */
-
- if (png_get_gAMA(png_ptr, info_ptr, &gamma))
- png_set_gamma(png_ptr, display_exponent, gamma);
-
-
- /* all transformations have been registered; now update info_ptr data,
- * get rowbytes and channels, and allocate image memory */
-
- png_read_update_info(png_ptr, info_ptr);
-
- *pRowbytes = rowbytes = png_get_rowbytes(png_ptr, info_ptr);
- *pChannels = (int)png_get_channels(png_ptr, info_ptr);
-
- /* Guard against integer overflow */
- if (height > ((size_t)(-1))/rowbytes) {
- fprintf(stderr, "readpng: image_data buffer would be too large\n",
- return NULL;
- }
-
- if ((image_data = (uch *)malloc(rowbytes*height)) == NULL) {
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- return NULL;
- }
- if ((row_pointers = (png_bytepp)malloc(height*sizeof(png_bytep))) == NULL) {
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- free(image_data);
- image_data = NULL;
- return NULL;
- }
-
- Trace((stderr, "readpng_get_image: channels = %d, rowbytes = %ld, height = %ld\n",
- *pChannels, rowbytes, height));
-
-
- /* set the individual row_pointers to point at the correct offsets */
-
- for (i = 0; i < height; ++i)
- row_pointers[i] = image_data + i*rowbytes;
-
-
- /* now we can go ahead and just read the whole image */
-
- png_read_image(png_ptr, row_pointers);
-
-
- /* and we're done! (png_read_end() can be omitted if no processing of
- * post-IDAT text/time/etc. is desired) */
-
- free(row_pointers);
- row_pointers = NULL;
-
- png_read_end(png_ptr, NULL);
-
- return image_data;
-}
-
-
-void readpng_cleanup(int free_image_data)
-{
- if (free_image_data && image_data) {
- free(image_data);
- image_data = NULL;
- }
-
- if (png_ptr && info_ptr) {
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- png_ptr = NULL;
- info_ptr = NULL;
- }
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/readpng.h b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/readpng.h
deleted file mode 100644
index fad9fe3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/readpng.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/*---------------------------------------------------------------------------
-
- rpng - simple PNG display program readpng.h
-
- ---------------------------------------------------------------------------
-
- Copyright (c) 1998-2007 Greg Roelofs. All rights reserved.
-
- This software is provided "as is," without warranty of any kind,
- express or implied. In no event shall the author or contributors
- be held liable for any damages arising in any way from the use of
- this software.
-
- The contents of this file are DUAL-LICENSED. You may modify and/or
- redistribute this software according to the terms of one of the
- following two licenses (at your option):
-
-
- LICENSE 1 ("BSD-like with advertising clause"):
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute
- it freely, subject to the following restrictions:
-
- 1. Redistributions of source code must retain the above copyright
- notice, disclaimer, and this list of conditions.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, disclaimer, and this list of conditions in the documenta-
- tion and/or other materials provided with the distribution.
- 3. All advertising materials mentioning features or use of this
- software must display the following acknowledgment:
-
- This product includes software developed by Greg Roelofs
- and contributors for the book, "PNG: The Definitive Guide,"
- published by O'Reilly and Associates.
-
-
- LICENSE 2 (GNU GPL v2 or later):
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- ---------------------------------------------------------------------------*/
-
-#ifndef TRUE
-# define TRUE 1
-# define FALSE 0
-#endif
-
-#ifndef MAX
-# define MAX(a,b) ((a) > (b)? (a) : (b))
-# define MIN(a,b) ((a) < (b)? (a) : (b))
-#endif
-
-#ifdef DEBUG
-# define Trace(x) {fprintf x ; fflush(stderr); fflush(stdout);}
-#else
-# define Trace(x) ;
-#endif
-
-typedef unsigned char uch;
-typedef unsigned short ush;
-typedef unsigned long ulg;
-
-
-/* prototypes for public functions in readpng.c */
-
-void readpng_version_info(void);
-
-int readpng_init(FILE *infile, ulg *pWidth, ulg *pHeight);
-
-int readpng_get_bgcolor(uch *bg_red, uch *bg_green, uch *bg_blue);
-
-uch *readpng_get_image(double display_exponent, int *pChannels,
- ulg *pRowbytes);
-
-void readpng_cleanup(int free_image_data);
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/readpng2.c b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/readpng2.c
deleted file mode 100644
index 610b3cd..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/readpng2.c
+++ /dev/null
@@ -1,521 +0,0 @@
-/*---------------------------------------------------------------------------
-
- rpng2 - progressive-model PNG display program readpng2.c
-
- ---------------------------------------------------------------------------
-
- Copyright (c) 1998-2015 Greg Roelofs. All rights reserved.
-
- This software is provided "as is," without warranty of any kind,
- express or implied. In no event shall the author or contributors
- be held liable for any damages arising in any way from the use of
- this software.
-
- The contents of this file are DUAL-LICENSED. You may modify and/or
- redistribute this software according to the terms of one of the
- following two licenses (at your option):
-
-
- LICENSE 1 ("BSD-like with advertising clause"):
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute
- it freely, subject to the following restrictions:
-
- 1. Redistributions of source code must retain the above copyright
- notice, disclaimer, and this list of conditions.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, disclaimer, and this list of conditions in the documenta-
- tion and/or other materials provided with the distribution.
- 3. All advertising materials mentioning features or use of this
- software must display the following acknowledgment:
-
- This product includes software developed by Greg Roelofs
- and contributors for the book, "PNG: The Definitive Guide,"
- published by O'Reilly and Associates.
-
-
- LICENSE 2 (GNU GPL v2 or later):
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- ---------------------------------------------------------------------------
-
- Changelog:
- 2015-11-12 - Check return value of png_get_bKGD() (Glenn R-P)
- 2017-04-22 - Guard against integer overflow (Glenn R-P)
-
- ---------------------------------------------------------------------------*/
-
-
-#include <stdlib.h> /* for exit() prototype */
-#include <setjmp.h>
-
-#include <zlib.h>
-#include "png.h" /* libpng header from the local directory */
-#include "readpng2.h" /* typedefs, common macros, public prototypes */
-
-
-/* local prototypes */
-
-static void readpng2_info_callback(png_structp png_ptr, png_infop info_ptr);
-static void readpng2_row_callback(png_structp png_ptr, png_bytep new_row,
- png_uint_32 row_num, int pass);
-static void readpng2_end_callback(png_structp png_ptr, png_infop info_ptr);
-static void readpng2_error_handler(png_structp png_ptr, png_const_charp msg);
-static void readpng2_warning_handler(png_structp png_ptr, png_const_charp msg);
-
-
-
-
-void readpng2_version_info(void)
-{
- fprintf(stderr, " Compiled with libpng %s; using libpng %s\n",
- PNG_LIBPNG_VER_STRING, png_libpng_ver);
-
- fprintf(stderr, " and with zlib %s; using zlib %s.\n",
- ZLIB_VERSION, zlib_version);
-}
-
-
-
-
-int readpng2_check_sig(uch *sig, int num)
-{
- return !png_sig_cmp(sig, 0, num);
-}
-
-
-
-
-/* returns 0 for success, 2 for libpng problem, 4 for out of memory */
-
-int readpng2_init(mainprog_info *mainprog_ptr)
-{
- png_structp png_ptr; /* note: temporary variables! */
- png_infop info_ptr;
-
-
- /* could also replace libpng warning-handler (final NULL), but no need: */
-
- png_ptr = png_create_read_struct(png_get_libpng_ver(NULL), mainprog_ptr,
- readpng2_error_handler, readpng2_warning_handler);
- if (!png_ptr)
- return 4; /* out of memory */
-
- info_ptr = png_create_info_struct(png_ptr);
- if (!info_ptr) {
- png_destroy_read_struct(&png_ptr, NULL, NULL);
- return 4; /* out of memory */
- }
-
-
- /* we could create a second info struct here (end_info), but it's only
- * useful if we want to keep pre- and post-IDAT chunk info separated
- * (mainly for PNG-aware image editors and converters) */
-
-
- /* setjmp() must be called in every function that calls a PNG-reading
- * libpng function, unless an alternate error handler was installed--
- * but compatible error handlers must either use longjmp() themselves
- * (as in this program) or exit immediately, so here we are: */
-
- if (setjmp(mainprog_ptr->jmpbuf)) {
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- return 2;
- }
-
-
-#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
- /* prepare the reader to ignore all recognized chunks whose data won't be
- * used, i.e., all chunks recognized by libpng except for IHDR, PLTE, IDAT,
- * IEND, tRNS, bKGD, gAMA, and sRGB (small performance improvement) */
- {
- /* These byte strings were copied from png.h. If a future version
- * of readpng2.c recognizes more chunks, add them to this list.
- */
- static const png_byte chunks_to_process[] = {
- 98, 75, 71, 68, '\0', /* bKGD */
- 103, 65, 77, 65, '\0', /* gAMA */
- 115, 82, 71, 66, '\0', /* sRGB */
- };
-
- /* Ignore all chunks except for IHDR, PLTE, tRNS, IDAT, and IEND */
- png_set_keep_unknown_chunks(png_ptr, -1 /* PNG_HANDLE_CHUNK_NEVER */,
- NULL, -1);
-
- /* But do not ignore chunks in the "chunks_to_process" list */
- png_set_keep_unknown_chunks(png_ptr,
- 0 /* PNG_HANDLE_CHUNK_AS_DEFAULT */, chunks_to_process,
- sizeof(chunks_to_process)/5);
- }
-#endif /* PNG_HANDLE_AS_UNKNOWN_SUPPORTED */
-
-
- /* instead of doing png_init_io() here, now we set up our callback
- * functions for progressive decoding */
-
- png_set_progressive_read_fn(png_ptr, mainprog_ptr,
- readpng2_info_callback, readpng2_row_callback, readpng2_end_callback);
-
-
- /* make sure we save our pointers for use in readpng2_decode_data() */
-
- mainprog_ptr->png_ptr = png_ptr;
- mainprog_ptr->info_ptr = info_ptr;
-
-
- /* and that's all there is to initialization */
-
- return 0;
-}
-
-
-
-
-/* returns 0 for success, 2 for libpng (longjmp) problem */
-
-int readpng2_decode_data(mainprog_info *mainprog_ptr, uch *rawbuf, ulg length)
-{
- png_structp png_ptr = (png_structp)mainprog_ptr->png_ptr;
- png_infop info_ptr = (png_infop)mainprog_ptr->info_ptr;
-
-
- /* setjmp() must be called in every function that calls a PNG-reading
- * libpng function */
-
- if (setjmp(mainprog_ptr->jmpbuf)) {
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- mainprog_ptr->png_ptr = NULL;
- mainprog_ptr->info_ptr = NULL;
- return 2;
- }
-
-
- /* hand off the next chunk of input data to libpng for decoding */
-
- png_process_data(png_ptr, info_ptr, rawbuf, length);
-
- return 0;
-}
-
-
-
-
-static void readpng2_info_callback(png_structp png_ptr, png_infop info_ptr)
-{
- mainprog_info *mainprog_ptr;
- int color_type, bit_depth;
- png_uint_32 width, height;
-#ifdef PNG_FLOATING_POINT_SUPPORTED
- double gamma;
-#else
- png_fixed_point gamma;
-#endif
-
-
- /* setjmp() doesn't make sense here, because we'd either have to exit(),
- * longjmp() ourselves, or return control to libpng, which doesn't want
- * to see us again. By not doing anything here, libpng will instead jump
- * to readpng2_decode_data(), which can return an error value to the main
- * program. */
-
-
- /* retrieve the pointer to our special-purpose struct, using the png_ptr
- * that libpng passed back to us (i.e., not a global this time--there's
- * no real difference for a single image, but for a multithreaded browser
- * decoding several PNG images at the same time, one needs to avoid mixing
- * up different images' structs) */
-
- mainprog_ptr = png_get_progressive_ptr(png_ptr);
-
- if (mainprog_ptr == NULL) { /* we be hosed */
- fprintf(stderr,
- "readpng2 error: main struct not recoverable in info_callback.\n");
- fflush(stderr);
- return;
- /*
- * Alternatively, we could call our error-handler just like libpng
- * does, which would effectively terminate the program. Since this
- * can only happen if png_ptr gets redirected somewhere odd or the
- * main PNG struct gets wiped, we're probably toast anyway. (If
- * png_ptr itself is NULL, we would not have been called.)
- */
- }
-
-
- /* this is just like in the non-progressive case */
-
- png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
- NULL, NULL, NULL);
- mainprog_ptr->width = (ulg)width;
- mainprog_ptr->height = (ulg)height;
-
-
- /* since we know we've read all of the PNG file's "header" (i.e., up
- * to IDAT), we can check for a background color here */
-
- if (mainprog_ptr->need_bgcolor)
- {
- png_color_16p pBackground;
-
- /* it is not obvious from the libpng documentation, but this function
- * takes a pointer to a pointer, and it always returns valid red,
- * green and blue values, regardless of color_type: */
- if (png_get_bKGD(png_ptr, info_ptr, &pBackground))
- {
-
- /* however, it always returns the raw bKGD data, regardless of any
- * bit-depth transformations, so check depth and adjust if necessary
- */
- if (bit_depth == 16) {
- mainprog_ptr->bg_red = pBackground->red >> 8;
- mainprog_ptr->bg_green = pBackground->green >> 8;
- mainprog_ptr->bg_blue = pBackground->blue >> 8;
- } else if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) {
- if (bit_depth == 1)
- mainprog_ptr->bg_red = mainprog_ptr->bg_green =
- mainprog_ptr->bg_blue = pBackground->gray? 255 : 0;
- else if (bit_depth == 2)
- mainprog_ptr->bg_red = mainprog_ptr->bg_green =
- mainprog_ptr->bg_blue = (255/3) * pBackground->gray;
- else /* bit_depth == 4 */
- mainprog_ptr->bg_red = mainprog_ptr->bg_green =
- mainprog_ptr->bg_blue = (255/15) * pBackground->gray;
- } else {
- mainprog_ptr->bg_red = (uch)pBackground->red;
- mainprog_ptr->bg_green = (uch)pBackground->green;
- mainprog_ptr->bg_blue = (uch)pBackground->blue;
- }
- }
- }
-
-
- /* as before, let libpng expand palette images to RGB, low-bit-depth
- * grayscale images to 8 bits, transparency chunks to full alpha channel;
- * strip 16-bit-per-sample images to 8 bits per sample; and convert
- * grayscale to RGB[A] */
-
- if (color_type == PNG_COLOR_TYPE_PALETTE)
- png_set_expand(png_ptr);
- if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
- png_set_expand(png_ptr);
- if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS))
- png_set_expand(png_ptr);
-#ifdef PNG_READ_16_TO_8_SUPPORTED
- if (bit_depth == 16)
-# ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
- png_set_scale_16(png_ptr);
-# else
- png_set_strip_16(png_ptr);
-# endif
-#endif
- if (color_type == PNG_COLOR_TYPE_GRAY ||
- color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- png_set_gray_to_rgb(png_ptr);
-
-
- /* Unlike the basic viewer, which was designed to operate on local files,
- * this program is intended to simulate a web browser--even though we
- * actually read from a local file, too. But because we are pretending
- * that most of the images originate on the Internet, we follow the recom-
- * mendation of the sRGB proposal and treat unlabelled images (no gAMA
- * chunk) as existing in the sRGB color space. That is, we assume that
- * such images have a file gamma of 0.45455, which corresponds to a PC-like
- * display system. This change in assumptions will have no effect on a
- * PC-like system, but on a Mac, SGI, NeXT or other system with a non-
- * identity lookup table, it will darken unlabelled images, which effec-
- * tively favors images from PC-like systems over those originating on
- * the local platform. Note that mainprog_ptr->display_exponent is the
- * "gamma" value for the entire display system, i.e., the product of
- * LUT_exponent and CRT_exponent. */
-
-#ifdef PNG_FLOATING_POINT_SUPPORTED
- if (png_get_gAMA(png_ptr, info_ptr, &gamma))
- png_set_gamma(png_ptr, mainprog_ptr->display_exponent, gamma);
- else
- png_set_gamma(png_ptr, mainprog_ptr->display_exponent, 0.45455);
-#else
- if (png_get_gAMA_fixed(png_ptr, info_ptr, &gamma))
- png_set_gamma_fixed(png_ptr,
- (png_fixed_point)(100000*mainprog_ptr->display_exponent+.5), gamma);
- else
- png_set_gamma_fixed(png_ptr,
- (png_fixed_point)(100000*mainprog_ptr->display_exponent+.5), 45455);
-#endif
-
- /* we'll let libpng expand interlaced images, too */
-
- mainprog_ptr->passes = png_set_interlace_handling(png_ptr);
-
-
- /* all transformations have been registered; now update info_ptr data and
- * then get rowbytes and channels */
-
- png_read_update_info(png_ptr, info_ptr);
-
- mainprog_ptr->rowbytes = (int)png_get_rowbytes(png_ptr, info_ptr);
- mainprog_ptr->channels = png_get_channels(png_ptr, info_ptr);
-
-
- /* Call the main program to allocate memory for the image buffer and
- * initialize windows and whatnot. (The old-style function-pointer
- * invocation is used for compatibility with a few supposedly ANSI
- * compilers that nevertheless barf on "fn_ptr()"-style syntax.) */
-
- (*mainprog_ptr->mainprog_init)();
-
-
- /* and that takes care of initialization */
-
- return;
-}
-
-
-
-
-
-static void readpng2_row_callback(png_structp png_ptr, png_bytep new_row,
- png_uint_32 row_num, int pass)
-{
- mainprog_info *mainprog_ptr;
-
-
- /* first check whether the row differs from the previous pass; if not,
- * nothing to combine or display */
-
- if (!new_row)
- return;
-
-
- /* retrieve the pointer to our special-purpose struct so we can access
- * the old rows and image-display callback function */
-
- mainprog_ptr = png_get_progressive_ptr(png_ptr);
-
-
- /* save the pass number for optional use by the front end */
-
- mainprog_ptr->pass = pass;
-
-
- /* have libpng either combine the new row data with the existing row data
- * from previous passes (if interlaced) or else just copy the new row
- * into the main program's image buffer */
-
- png_progressive_combine_row(png_ptr, mainprog_ptr->row_pointers[row_num],
- new_row);
-
-
- /* finally, call the display routine in the main program with the number
- * of the row we just updated */
-
- (*mainprog_ptr->mainprog_display_row)(row_num);
-
-
- /* and we're ready for more */
-
- return;
-}
-
-
-
-
-
-static void readpng2_end_callback(png_structp png_ptr, png_infop info_ptr)
-{
- mainprog_info *mainprog_ptr;
-
-
- /* retrieve the pointer to our special-purpose struct */
-
- mainprog_ptr = png_get_progressive_ptr(png_ptr);
-
-
- /* let the main program know that it should flush any buffered image
- * data to the display now and set a "done" flag or whatever, but note
- * that it SHOULD NOT DESTROY THE PNG STRUCTS YET--in other words, do
- * NOT call readpng2_cleanup() either here or in the finish_display()
- * routine; wait until control returns to the main program via
- * readpng2_decode_data() */
-
- (*mainprog_ptr->mainprog_finish_display)();
-
-
- /* all done */
-
- (void)info_ptr; /* Unused */
-
- return;
-}
-
-
-
-
-
-void readpng2_cleanup(mainprog_info *mainprog_ptr)
-{
- png_structp png_ptr = (png_structp)mainprog_ptr->png_ptr;
- png_infop info_ptr = (png_infop)mainprog_ptr->info_ptr;
-
- if (png_ptr && info_ptr)
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
-
- mainprog_ptr->png_ptr = NULL;
- mainprog_ptr->info_ptr = NULL;
-}
-
-
-static void readpng2_warning_handler(png_structp png_ptr, png_const_charp msg)
-{
- fprintf(stderr, "readpng2 libpng warning: %s\n", msg);
- fflush(stderr);
- (void)png_ptr; /* Unused */
-}
-
-
-static void readpng2_error_handler(png_structp png_ptr, png_const_charp msg)
-{
- mainprog_info *mainprog_ptr;
-
- /* This function, aside from the extra step of retrieving the "error
- * pointer" (below) and the fact that it exists within the application
- * rather than within libpng, is essentially identical to libpng's
- * default error handler. The second point is critical: since both
- * setjmp() and longjmp() are called from the same code, they are
- * guaranteed to have compatible notions of how big a jmp_buf is,
- * regardless of whether _BSD_SOURCE or anything else has (or has not)
- * been defined. */
-
- fprintf(stderr, "readpng2 libpng error: %s\n", msg);
- fflush(stderr);
-
- mainprog_ptr = png_get_error_ptr(png_ptr);
- if (mainprog_ptr == NULL) { /* we are completely hosed now */
- fprintf(stderr,
- "readpng2 severe error: jmpbuf not recoverable; terminating.\n");
- fflush(stderr);
- exit(99);
- }
-
- /* Now we have our data structure we can use the information in it
- * to return control to our own higher level code (all the points
- * where 'setjmp' is called in this file.) This will work with other
- * error handling mechanisms as well - libpng always calls png_error
- * when it can proceed no further, thus, so long as the error handler
- * is intercepted, application code can do its own error recovery.
- */
- longjmp(mainprog_ptr->jmpbuf, 1);
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/readpng2.h b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/readpng2.h
deleted file mode 100644
index 6b3660d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/readpng2.h
+++ /dev/null
@@ -1,116 +0,0 @@
-/*---------------------------------------------------------------------------
-
- rpng2 - progressive-model PNG display program readpng2.h
-
- ---------------------------------------------------------------------------
-
- Copyright (c) 1998-2008 Greg Roelofs. All rights reserved.
-
- This software is provided "as is," without warranty of any kind,
- express or implied. In no event shall the author or contributors
- be held liable for any damages arising in any way from the use of
- this software.
-
- The contents of this file are DUAL-LICENSED. You may modify and/or
- redistribute this software according to the terms of one of the
- following two licenses (at your option):
-
-
- LICENSE 1 ("BSD-like with advertising clause"):
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute
- it freely, subject to the following restrictions:
-
- 1. Redistributions of source code must retain the above copyright
- notice, disclaimer, and this list of conditions.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, disclaimer, and this list of conditions in the documenta-
- tion and/or other materials provided with the distribution.
- 3. All advertising materials mentioning features or use of this
- software must display the following acknowledgment:
-
- This product includes software developed by Greg Roelofs
- and contributors for the book, "PNG: The Definitive Guide,"
- published by O'Reilly and Associates.
-
-
- LICENSE 2 (GNU GPL v2 or later):
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- ---------------------------------------------------------------------------*/
-
-#ifndef TRUE
-# define TRUE 1
-# define FALSE 0
-#endif
-
-#ifndef MAX
-# define MAX(a,b) ((a) > (b)? (a) : (b))
-# define MIN(a,b) ((a) < (b)? (a) : (b))
-#endif
-
-#ifdef DEBUG
-# define Trace(x) {fprintf x ; fflush(stderr); fflush(stdout);}
-#else
-# define Trace(x) ;
-#endif
-
-enum rpng2_states {
- kPreInit = 0,
- kWindowInit,
- kDone
-};
-
-typedef unsigned char uch;
-typedef unsigned short ush;
-typedef unsigned long ulg;
-
-typedef struct _mainprog_info {
- double display_exponent;
- ulg width;
- ulg height;
- void *png_ptr;
- void *info_ptr;
- void (*mainprog_init)(void);
- void (*mainprog_display_row)(ulg row_num);
- void (*mainprog_finish_display)(void);
- uch *image_data;
- uch **row_pointers;
- jmp_buf jmpbuf;
- int passes; /* not used */
- int pass;
- int rowbytes;
- int channels;
- int need_bgcolor;
- int state;
- uch bg_red;
- uch bg_green;
- uch bg_blue;
-} mainprog_info;
-
-
-/* prototypes for public functions in readpng2.c */
-
-void readpng2_version_info(void);
-
-int readpng2_check_sig(uch *sig, int num);
-
-int readpng2_init(mainprog_info *mainprog_ptr);
-
-int readpng2_decode_data(mainprog_info *mainprog_ptr, uch *rawbuf, ulg length);
-
-void readpng2_cleanup(mainprog_info *mainprog_ptr);
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/readppm.c b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/readppm.c
deleted file mode 100644
index 52e7027..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/readppm.c
+++ /dev/null
@@ -1,188 +0,0 @@
-/*---------------------------------------------------------------------------
-
- rpng - simple PNG display program readppm.c
-
- ---------------------------------------------------------------------------
-
- This is a special-purpose replacement for readpng.c that allows binary
- PPM files to be used in place of PNG images.
-
- ---------------------------------------------------------------------------
-
- Copyright (c) 1998-2007,2017 Greg Roelofs. All rights reserved.
-
- This software is provided "as is," without warranty of any kind,
- express or implied. In no event shall the author or contributors
- be held liable for any damages arising in any way from the use of
- this software.
-
- The contents of this file are DUAL-LICENSED. You may modify and/or
- redistribute this software according to the terms of one of the
- following two licenses (at your option):
-
-
- LICENSE 1 ("BSD-like with advertising clause"):
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute
- it freely, subject to the following restrictions:
-
- 1. Redistributions of source code must retain the above copyright
- notice, disclaimer, and this list of conditions.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, disclaimer, and this list of conditions in the documenta-
- tion and/or other materials provided with the distribution.
- 3. All advertising materials mentioning features or use of this
- software must display the following acknowledgment:
-
- This product includes software developed by Greg Roelofs
- and contributors for the book, "PNG: The Definitive Guide,"
- published by O'Reilly and Associates.
-
-
- LICENSE 2 (GNU GPL v2 or later):
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- ---------------------------------------------------------------------------*/
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "readpng.h" /* typedefs, common macros, public prototypes */
-
-
-ulg width, height;
-int bit_depth, color_type, channels;
-uch *image_data = NULL;
-FILE *saved_infile;
-
-
-void readpng_version_info()
-{
- fprintf(stderr, " Compiled without libpng, zlib or PBMPLUS/NetPBM.\n");
-}
-
-
-/* return value = 0 for success, 1 for bad sig, 2 for bad IHDR, 4 for no mem */
-
-int readpng_init(FILE *infile, ulg *pWidth, ulg *pHeight)
-{
- static uch ppmline[256];
- int maxval;
-
-
- saved_infile = infile;
-
- fgets(ppmline, 256, infile);
- if (ppmline[0] != 'P' || ppmline[1] != '6') {
- fprintf(stderr, "ERROR: not a PPM file\n");
- return 1;
- }
- /* possible color types: P5 = grayscale (0), P6 = RGB (2), P8 = RGBA (6) */
- if (ppmline[1] == '6') {
- color_type = 2;
- channels = 3;
- } else if (ppmline[1] == '8') {
- color_type = 6;
- channels = 4;
- } else /* if (ppmline[1] == '5') */ {
- color_type = 0;
- channels = 1;
- }
-
- do {
- fgets(ppmline, 256, infile);
- } while (ppmline[0] == '#');
- sscanf(ppmline, "%lu %lu", &width, &height);
-
- do {
- fgets(ppmline, 256, infile);
- } while (ppmline[0] == '#');
- sscanf(ppmline, "%d", &maxval);
- if (maxval != 255) {
- fprintf(stderr, "ERROR: maxval = %d\n", maxval);
- return 2;
- }
- bit_depth = 8;
-
- *pWidth = width;
- *pHeight = height;
-
- return 0;
-}
-
-
-
-
-/* returns 0 if succeeds, 1 if fails due to no bKGD chunk, 2 if libpng error;
- * scales values to 8-bit if necessary */
-
-int readpng_get_bgcolor(uch *red, uch *green, uch *blue)
-{
- return 1;
-}
-
-
-
-
-/* display_exponent == LUT_exponent * CRT_exponent */
-
-uch *readpng_get_image(double display_exponent, int *pChannels, ulg *pRowbytes)
-{
- ulg rowbytes;
-
-
- /* expand palette images to RGB, low-bit-depth grayscale images to 8 bits,
- * transparency chunks to full alpha channel; strip 16-bit-per-sample
- * images to 8 bits per sample; and convert grayscale to RGB[A] */
-
- /* GRR WARNING: grayscale needs to be expanded and channels reset! */
-
- *pRowbytes = rowbytes = channels*width;
- *pChannels = channels;
-
- Trace((stderr, "readpng_get_image: rowbytes = %ld, height = %ld\n", rowbytes, height));
-
- /* Guard against integer overflow */
- if (height > ((size_t)(-1))/rowbytes) {
- fprintf(stderr, PROGNAME ": image_data buffer would be too large\n",
- return NULL;
- }
-
- if ((image_data = (uch *)malloc(rowbytes*height)) == NULL) {
- return NULL;
- }
-
- /* now we can go ahead and just read the whole image */
-
- if (fread(image_data, 1L, rowbytes*height, saved_infile) <
- rowbytes*height) {
- free (image_data);
- image_data = NULL;
- return NULL;
- }
-
- return image_data;
-}
-
-
-void readpng_cleanup(int free_image_data)
-{
- if (free_image_data && image_data) {
- free(image_data);
- image_data = NULL;
- }
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/rpng-win.c b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/rpng-win.c
deleted file mode 100644
index 1a6f876..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/rpng-win.c
+++ /dev/null
@@ -1,735 +0,0 @@
-/*---------------------------------------------------------------------------
-
- rpng - simple PNG display program rpng-win.c
-
- This program decodes and displays PNG images, with gamma correction and
- optionally with a user-specified background color (in case the image has
- transparency). It is very nearly the most basic PNG viewer possible.
- This version is for 32-bit Windows; it may compile under 16-bit Windows
- with a little tweaking (or maybe not).
-
- to do:
- - handle quoted command-line args (especially filenames with spaces)
- - have minimum window width: oh well
- - use %.1023s to simplify truncation of title-bar string?
-
- ---------------------------------------------------------------------------
-
- Changelog:
- - 1.00: initial public release
- - 1.01: modified to allow abbreviated options; fixed long/ulong mis-
- match; switched to png_jmpbuf() macro
- - 1.02: added extra set of parentheses to png_jmpbuf() macro; fixed
- command-line parsing bug
- - 1.10: enabled "message window"/console (thanks to David Geldreich)
- - 2.00: dual-licensed (added GNU GPL)
- - 2.01: fixed improper display of usage screen on PNG error(s)
- - 2.02: check for integer overflow (Glenn R-P)
-
- ---------------------------------------------------------------------------
-
- Copyright (c) 1998-2008, 2017 Greg Roelofs. All rights reserved.
-
- This software is provided "as is," without warranty of any kind,
- express or implied. In no event shall the author or contributors
- be held liable for any damages arising in any way from the use of
- this software.
-
- The contents of this file are DUAL-LICENSED. You may modify and/or
- redistribute this software according to the terms of one of the
- following two licenses (at your option):
-
-
- LICENSE 1 ("BSD-like with advertising clause"):
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute
- it freely, subject to the following restrictions:
-
- 1. Redistributions of source code must retain the above copyright
- notice, disclaimer, and this list of conditions.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, disclaimer, and this list of conditions in the documenta-
- tion and/or other materials provided with the distribution.
- 3. All advertising materials mentioning features or use of this
- software must display the following acknowledgment:
-
- This product includes software developed by Greg Roelofs
- and contributors for the book, "PNG: The Definitive Guide,"
- published by O'Reilly and Associates.
-
-
- LICENSE 2 (GNU GPL v2 or later):
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- ---------------------------------------------------------------------------*/
-
-#define PROGNAME "rpng-win"
-#define LONGNAME "Simple PNG Viewer for Windows"
-#define VERSION "2.01 of 16 March 2008"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <windows.h>
-#ifdef __CYGWIN__
-/* getch replacement. Turns out, we don't really need this,
- * but leave it here if we ever enable any of the uses of
- * _getch in the main code
- */
-#include <unistd.h>
-#include <termio.h>
-#include <sys/ioctl.h>
-int repl_getch( void )
-{
- char ch;
- int fd = fileno(stdin);
- struct termio old_tty, new_tty;
-
- ioctl(fd, TCGETA, &old_tty);
- new_tty = old_tty;
- new_tty.c_lflag &= ~(ICANON | ECHO | ISIG);
- ioctl(fd, TCSETA, &new_tty);
- fread(&ch, 1, sizeof(ch), stdin);
- ioctl(fd, TCSETA, &old_tty);
-
- return ch;
-}
-#define _getch repl_getch
-#else
-#include <conio.h> /* only for _getch() */
-#endif
-
-/* #define DEBUG : this enables the Trace() macros */
-
-#include "readpng.h" /* typedefs, common macros, readpng prototypes */
-
-
-/* could just include png.h, but this macro is the only thing we need
- * (name and typedefs changed to local versions); note that side effects
- * only happen with alpha (which could easily be avoided with
- * "ush acopy = (alpha);") */
-
-#define alpha_composite(composite, fg, alpha, bg) { \
- ush temp = ((ush)(fg)*(ush)(alpha) + \
- (ush)(bg)*(ush)(255 - (ush)(alpha)) + (ush)128); \
- (composite) = (uch)((temp + (temp >> 8)) >> 8); \
-}
-
-
-/* local prototypes */
-static int rpng_win_create_window(HINSTANCE hInst, int showmode);
-static int rpng_win_display_image(void);
-static void rpng_win_cleanup(void);
-LRESULT CALLBACK rpng_win_wndproc(HWND, UINT, WPARAM, LPARAM);
-
-
-static char titlebar[1024];
-static char *progname = PROGNAME;
-static char *appname = LONGNAME;
-static char *filename;
-static FILE *infile;
-
-static char *bgstr;
-static uch bg_red=0, bg_green=0, bg_blue=0;
-
-static double display_exponent;
-
-static ulg image_width, image_height, image_rowbytes;
-static int image_channels;
-static uch *image_data;
-
-/* Windows-specific variables */
-static ulg wimage_rowbytes;
-static uch *dib;
-static uch *wimage_data;
-static BITMAPINFOHEADER *bmih;
-
-static HWND global_hwnd;
-
-
-
-
-int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
-{
- char *args[1024]; /* arbitrary limit, but should suffice */
- char *p, *q, **argv = args;
- int argc = 0;
- int rc, alen, flen;
- int error = 0;
- int have_bg = FALSE;
- double LUT_exponent; /* just the lookup table */
- double CRT_exponent = 2.2; /* just the monitor */
- double default_display_exponent; /* whole display system */
- MSG msg;
-
-
- filename = (char *)NULL;
-
-#ifndef __CYGWIN__
- /* First reenable console output, which normally goes to the bit bucket
- * for windowed apps. Closing the console window will terminate the
- * app. Thanks to David.Geldreich at realviz.com for supplying the magical
- * incantation. */
-
- AllocConsole();
- freopen("CONOUT$", "a", stderr);
- freopen("CONOUT$", "a", stdout);
-#endif
-
-
- /* Next set the default value for our display-system exponent, i.e.,
- * the product of the CRT exponent and the exponent corresponding to
- * the frame-buffer's lookup table (LUT), if any. This is not an
- * exhaustive list of LUT values (e.g., OpenStep has a lot of weird
- * ones), but it should cover 99% of the current possibilities. And
- * yes, these ifdefs are completely wasted in a Windows program... */
-
-#if defined(NeXT)
- LUT_exponent = 1.0 / 2.2;
- /*
- if (some_next_function_that_returns_gamma(&next_gamma))
- LUT_exponent = 1.0 / next_gamma;
- */
-#elif defined(sgi)
- LUT_exponent = 1.0 / 1.7;
- /* there doesn't seem to be any documented function to get the
- * "gamma" value, so we do it the hard way */
- infile = fopen("/etc/config/system.glGammaVal", "r");
- if (infile) {
- double sgi_gamma;
-
- fgets(tmpline, 80, infile);
- fclose(infile);
- sgi_gamma = atof(tmpline);
- if (sgi_gamma > 0.0)
- LUT_exponent = 1.0 / sgi_gamma;
- }
-#elif defined(Macintosh)
- LUT_exponent = 1.8 / 2.61;
- /*
- if (some_mac_function_that_returns_gamma(&mac_gamma))
- LUT_exponent = mac_gamma / 2.61;
- */
-#else
- LUT_exponent = 1.0; /* assume no LUT: most PCs */
-#endif
-
- /* the defaults above give 1.0, 1.3, 1.5 and 2.2, respectively: */
- default_display_exponent = LUT_exponent * CRT_exponent;
-
-
- /* If the user has set the SCREEN_GAMMA environment variable as suggested
- * (somewhat imprecisely) in the libpng documentation, use that; otherwise
- * use the default value we just calculated. Either way, the user may
- * override this via a command-line option. */
-
- if ((p = getenv("SCREEN_GAMMA")) != NULL)
- display_exponent = atof(p);
- else
- display_exponent = default_display_exponent;
-
-
- /* Windows really hates command lines, so we have to set up our own argv.
- * Note that we do NOT bother with quoted arguments here, so don't use
- * filenames with spaces in 'em! */
-
- argv[argc++] = PROGNAME;
- p = cmd;
- for (;;) {
- if (*p == ' ')
- while (*++p == ' ')
- ;
- /* now p points at the first non-space after some spaces */
- if (*p == '\0')
- break; /* nothing after the spaces: done */
- argv[argc++] = q = p;
- while (*q && *q != ' ')
- ++q;
- /* now q points at a space or the end of the string */
- if (*q == '\0')
- break; /* last argv already terminated; quit */
- *q = '\0'; /* change space to terminator */
- p = q + 1;
- }
- argv[argc] = NULL; /* terminate the argv array itself */
-
-
- /* Now parse the command line for options and the PNG filename. */
-
- while (*++argv && !error) {
- if (!strncmp(*argv, "-gamma", 2)) {
- if (!*++argv)
- ++error;
- else {
- display_exponent = atof(*argv);
- if (display_exponent <= 0.0)
- ++error;
- }
- } else if (!strncmp(*argv, "-bgcolor", 2)) {
- if (!*++argv)
- ++error;
- else {
- bgstr = *argv;
- if (strlen(bgstr) != 7 || bgstr[0] != '#')
- ++error;
- else
- have_bg = TRUE;
- }
- } else {
- if (**argv != '-') {
- filename = *argv;
- if (argv[1]) /* shouldn't be any more args after filename */
- ++error;
- } else
- ++error; /* not expecting any other options */
- }
- }
-
- if (!filename)
- ++error;
-
-
- /* print usage screen if any errors up to this point */
-
- if (error) {
-#ifndef __CYGWIN__
- int ch;
-#endif
-
- fprintf(stderr, "\n%s %s: %s\n\n", PROGNAME, VERSION, appname);
- readpng_version_info();
- fprintf(stderr, "\n"
- "Usage: %s [-gamma exp] [-bgcolor bg] file.png\n"
- " exp \ttransfer-function exponent (``gamma'') of the display\n"
- "\t\t system in floating-point format (e.g., ``%.1f''); equal\n"
- "\t\t to the product of the lookup-table exponent (varies)\n"
- "\t\t and the CRT exponent (usually 2.2); must be positive\n"
- " bg \tdesired background color in 7-character hex RGB format\n"
- "\t\t (e.g., ``#ff7700'' for orange: same as HTML colors);\n"
- "\t\t used with transparent images\n"
- "\nPress Q, Esc or mouse button 1 after image is displayed to quit.\n"
-#ifndef __CYGWIN__
- "Press Q or Esc to quit this usage screen.\n"
-#endif
- "\n", PROGNAME, default_display_exponent);
-#ifndef __CYGWIN__
- do
- ch = _getch();
- while (ch != 'q' && ch != 'Q' && ch != 0x1B);
-#endif
- exit(1);
- }
-
-
- if (!(infile = fopen(filename, "rb"))) {
- fprintf(stderr, PROGNAME ": can't open PNG file [%s]\n", filename);
- ++error;
- } else {
- if ((rc = readpng_init(infile, &image_width, &image_height)) != 0) {
- switch (rc) {
- case 1:
- fprintf(stderr, PROGNAME
- ": [%s] is not a PNG file: incorrect signature\n",
- filename);
- break;
- case 2:
- fprintf(stderr, PROGNAME
- ": [%s] has bad IHDR (libpng longjmp)\n", filename);
- break;
- case 4:
- fprintf(stderr, PROGNAME ": insufficient memory\n");
- break;
- default:
- fprintf(stderr, PROGNAME
- ": unknown readpng_init() error\n");
- break;
- }
- ++error;
- }
- if (error)
- fclose(infile);
- }
-
-
- if (error) {
-#ifndef __CYGWIN__
- int ch;
-#endif
-
- fprintf(stderr, PROGNAME ": aborting.\n");
-#ifndef __CYGWIN__
- do
- ch = _getch();
- while (ch != 'q' && ch != 'Q' && ch != 0x1B);
-#endif
- exit(2);
- } else {
- fprintf(stderr, "\n%s %s: %s\n", PROGNAME, VERSION, appname);
-#ifndef __CYGWIN__
- fprintf(stderr,
- "\n [console window: closing this window will terminate %s]\n\n",
- PROGNAME);
-#endif
- }
-
-
- /* set the title-bar string, but make sure buffer doesn't overflow */
-
- alen = strlen(appname);
- flen = strlen(filename);
- if (alen + flen + 3 > 1023)
- sprintf(titlebar, "%s: ...%s", appname, filename+(alen+flen+6-1023));
- else
- sprintf(titlebar, "%s: %s", appname, filename);
-
-
- /* if the user didn't specify a background color on the command line,
- * check for one in the PNG file--if not, the initialized values of 0
- * (black) will be used */
-
- if (have_bg) {
- unsigned r, g, b; /* this approach quiets compiler warnings */
-
- sscanf(bgstr+1, "%2x%2x%2x", &r, &g, &b);
- bg_red = (uch)r;
- bg_green = (uch)g;
- bg_blue = (uch)b;
- } else if (readpng_get_bgcolor(&bg_red, &bg_green, &bg_blue) > 1) {
- readpng_cleanup(TRUE);
- fprintf(stderr, PROGNAME
- ": libpng error while checking for background color\n");
- exit(2);
- }
-
-
- /* do the basic Windows initialization stuff, make the window and fill it
- * with the background color */
-
- if (rpng_win_create_window(hInst, showmode))
- exit(2);
-
-
- /* decode the image, all at once */
-
- Trace((stderr, "calling readpng_get_image()\n"))
- image_data = readpng_get_image(display_exponent, &image_channels,
- &image_rowbytes);
- Trace((stderr, "done with readpng_get_image()\n"))
-
-
- /* done with PNG file, so clean up to minimize memory usage (but do NOT
- * nuke image_data!) */
-
- readpng_cleanup(FALSE);
- fclose(infile);
-
- if (!image_data) {
- fprintf(stderr, PROGNAME ": unable to decode PNG image\n");
- exit(3);
- }
-
-
- /* display image (composite with background if requested) */
-
- Trace((stderr, "calling rpng_win_display_image()\n"))
- if (rpng_win_display_image()) {
- free(image_data);
- exit(4);
- }
- Trace((stderr, "done with rpng_win_display_image()\n"))
-
-
- /* wait for the user to tell us when to quit */
-
- printf(
-#ifndef __CYGWIN__
- "Done. Press Q, Esc or mouse button 1 (within image window) to quit.\n"
-#else
- "Done. Press mouse button 1 (within image window) to quit.\n"
-#endif
- );
- fflush(stdout);
-
- while (GetMessage(&msg, NULL, 0, 0)) {
- TranslateMessage(&msg);
- DispatchMessage(&msg);
- }
-
-
- /* OK, we're done: clean up all image and Windows resources and go away */
-
- rpng_win_cleanup();
-
- return msg.wParam;
-}
-
-
-
-
-
-static int rpng_win_create_window(HINSTANCE hInst, int showmode)
-{
- uch *dest;
- int extra_width, extra_height;
- ulg i, j;
- WNDCLASSEX wndclass;
-
-
-/*---------------------------------------------------------------------------
- Allocate memory for the display-specific version of the image (round up
- to multiple of 4 for Windows DIB).
- ---------------------------------------------------------------------------*/
-
- wimage_rowbytes = ((3*image_width + 3L) >> 2) << 2;
-
- /* Guard against integer overflow */
- if (image_height > ((size_t)(-1))/wimage_rowbytes) {
- fprintf(stderr, PROGNAME ": image_data buffer would be too large\n");
- return 4; /* fail */
- }
-
- if (!(dib = (uch *)malloc(sizeof(BITMAPINFOHEADER) +
- wimage_rowbytes*image_height)))
- {
- return 4; /* fail */
- }
-
-/*---------------------------------------------------------------------------
- Initialize the DIB. Negative height means to use top-down BMP ordering
- (must be uncompressed, but that's what we want). Bit count of 1, 4 or 8
- implies a colormap of RGBX quads, but 24-bit BMPs just use B,G,R values
- directly => wimage_data begins immediately after BMP header.
- ---------------------------------------------------------------------------*/
-
- memset(dib, 0, sizeof(BITMAPINFOHEADER));
- bmih = (BITMAPINFOHEADER *)dib;
- bmih->biSize = sizeof(BITMAPINFOHEADER);
- bmih->biWidth = image_width;
- bmih->biHeight = -((long)image_height);
- bmih->biPlanes = 1;
- bmih->biBitCount = 24;
- bmih->biCompression = 0;
- wimage_data = dib + sizeof(BITMAPINFOHEADER);
-
-/*---------------------------------------------------------------------------
- Fill in background color (black by default); data are in BGR order.
- ---------------------------------------------------------------------------*/
-
- for (j = 0; j < image_height; ++j) {
- dest = wimage_data + j*wimage_rowbytes;
- for (i = image_width; i > 0; --i) {
- *dest++ = bg_blue;
- *dest++ = bg_green;
- *dest++ = bg_red;
- }
- }
-
-/*---------------------------------------------------------------------------
- Set the window parameters.
- ---------------------------------------------------------------------------*/
-
- memset(&wndclass, 0, sizeof(wndclass));
-
- wndclass.cbSize = sizeof(wndclass);
- wndclass.style = CS_HREDRAW | CS_VREDRAW;
- wndclass.lpfnWndProc = rpng_win_wndproc;
- wndclass.hInstance = hInst;
- wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
- wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
- wndclass.hbrBackground = (HBRUSH)GetStockObject(DKGRAY_BRUSH);
- wndclass.lpszMenuName = NULL;
- wndclass.lpszClassName = progname;
- wndclass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
-
- RegisterClassEx(&wndclass);
-
-/*---------------------------------------------------------------------------
- Finally, create the window.
- ---------------------------------------------------------------------------*/
-
- extra_width = 2*(GetSystemMetrics(SM_CXBORDER) +
- GetSystemMetrics(SM_CXDLGFRAME));
- extra_height = 2*(GetSystemMetrics(SM_CYBORDER) +
- GetSystemMetrics(SM_CYDLGFRAME)) +
- GetSystemMetrics(SM_CYCAPTION);
-
- global_hwnd = CreateWindow(progname, titlebar, WS_OVERLAPPEDWINDOW,
- CW_USEDEFAULT, CW_USEDEFAULT, image_width+extra_width,
- image_height+extra_height, NULL, NULL, hInst, NULL);
-
- ShowWindow(global_hwnd, showmode);
- UpdateWindow(global_hwnd);
-
- return 0;
-
-} /* end function rpng_win_create_window() */
-
-
-
-
-
-static int rpng_win_display_image()
-{
- uch *src, *dest;
- uch r, g, b, a;
- ulg i, row, lastrow;
- RECT rect;
-
-
- Trace((stderr, "beginning display loop (image_channels == %d)\n",
- image_channels))
- Trace((stderr, "(width = %ld, rowbytes = %ld, wimage_rowbytes = %d)\n",
- image_width, image_rowbytes, wimage_rowbytes))
-
-
-/*---------------------------------------------------------------------------
- Blast image data to buffer. This whole routine takes place before the
- message loop begins, so there's no real point in any pseudo-progressive
- display...
- ---------------------------------------------------------------------------*/
-
- for (lastrow = row = 0; row < image_height; ++row) {
- src = image_data + row*image_rowbytes;
- dest = wimage_data + row*wimage_rowbytes;
- if (image_channels == 3) {
- for (i = image_width; i > 0; --i) {
- r = *src++;
- g = *src++;
- b = *src++;
- *dest++ = b;
- *dest++ = g; /* note reverse order */
- *dest++ = r;
- }
- } else /* if (image_channels == 4) */ {
- for (i = image_width; i > 0; --i) {
- r = *src++;
- g = *src++;
- b = *src++;
- a = *src++;
- if (a == 255) {
- *dest++ = b;
- *dest++ = g;
- *dest++ = r;
- } else if (a == 0) {
- *dest++ = bg_blue;
- *dest++ = bg_green;
- *dest++ = bg_red;
- } else {
- /* this macro (copied from png.h) composites the
- * foreground and background values and puts the
- * result into the first argument; there are no
- * side effects with the first argument */
- alpha_composite(*dest++, b, a, bg_blue);
- alpha_composite(*dest++, g, a, bg_green);
- alpha_composite(*dest++, r, a, bg_red);
- }
- }
- }
- /* display after every 16 lines */
- if (((row+1) & 0xf) == 0) {
- rect.left = 0L;
- rect.top = (LONG)lastrow;
- rect.right = (LONG)image_width; /* possibly off by one? */
- rect.bottom = (LONG)lastrow + 16L; /* possibly off by one? */
- InvalidateRect(global_hwnd, &rect, FALSE);
- UpdateWindow(global_hwnd); /* similar to XFlush() */
- lastrow = row + 1;
- }
- }
-
- Trace((stderr, "calling final image-flush routine\n"))
- if (lastrow < image_height) {
- rect.left = 0L;
- rect.top = (LONG)lastrow;
- rect.right = (LONG)image_width; /* possibly off by one? */
- rect.bottom = (LONG)image_height; /* possibly off by one? */
- InvalidateRect(global_hwnd, &rect, FALSE);
- UpdateWindow(global_hwnd); /* similar to XFlush() */
- }
-
-/*
- last param determines whether or not background is wiped before paint
- InvalidateRect(global_hwnd, NULL, TRUE);
- UpdateWindow(global_hwnd);
- */
-
- return 0;
-}
-
-
-
-
-
-static void rpng_win_cleanup()
-{
- if (image_data) {
- free(image_data);
- image_data = NULL;
- }
-
- if (dib) {
- free(dib);
- dib = NULL;
- }
-}
-
-
-
-
-
-LRESULT CALLBACK rpng_win_wndproc(HWND hwnd, UINT iMsg, WPARAM wP, LPARAM lP)
-{
- HDC hdc;
- PAINTSTRUCT ps;
- int rc;
-
- switch (iMsg) {
- case WM_CREATE:
- /* one-time processing here, if any */
- return 0;
-
- case WM_PAINT:
- hdc = BeginPaint(hwnd, &ps);
- /* dest */
- rc = StretchDIBits(hdc, 0, 0, image_width, image_height,
- /* source */
- 0, 0, image_width, image_height,
- wimage_data, (BITMAPINFO *)bmih,
- /* iUsage: no clue */
- 0, SRCCOPY);
- EndPaint(hwnd, &ps);
- return 0;
-
- /* wait for the user to tell us when to quit */
- case WM_CHAR:
- switch (wP) { /* only need one, so ignore repeat count */
- case 'q':
- case 'Q':
- case 0x1B: /* Esc key */
- PostQuitMessage(0);
- }
- return 0;
-
- case WM_LBUTTONDOWN: /* another way of quitting */
- case WM_DESTROY:
- PostQuitMessage(0);
- return 0;
- }
-
- return DefWindowProc(hwnd, iMsg, wP, lP);
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/rpng-x.c b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/rpng-x.c
deleted file mode 100644
index 92effaa..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/rpng-x.c
+++ /dev/null
@@ -1,911 +0,0 @@
-/*---------------------------------------------------------------------------
-
- rpng - simple PNG display program rpng-x.c
-
- This program decodes and displays PNG images, with gamma correction and
- optionally with a user-specified background color (in case the image has
- transparency). It is very nearly the most basic PNG viewer possible.
- This version is for the X Window System (tested by author under Unix and
- by Martin Zinser under OpenVMS; may work under OS/2 with some tweaking).
-
- to do:
- - 8-bit (colormapped) X support
- - use %.1023s to simplify truncation of title-bar string?
-
- ---------------------------------------------------------------------------
-
- Changelog:
- - 1.01: initial public release
- - 1.02: modified to allow abbreviated options; fixed long/ulong mis-
- match; switched to png_jmpbuf() macro
- - 1.10: added support for non-default visuals; fixed X pixel-conversion
- - 1.11: added extra set of parentheses to png_jmpbuf() macro; fixed
- command-line parsing bug
- - 1.12: fixed some small X memory leaks (thanks to Fran�ois Petitjean)
- - 1.13: fixed XFreeGC() crash bug (thanks to Patrick Welche)
- - 1.14: added support for X resources (thanks to Gerhard Niklasch)
- - 2.00: dual-licensed (added GNU GPL)
- - 2.01: fixed improper display of usage screen on PNG error(s)
- - 2.02: Added "void(argc);" statement to quiet pedantic compiler warnings
- about unused variable (GR-P)
- - 2.03: check for integer overflow (Glenn R-P)
-
- ---------------------------------------------------------------------------
-
- Copyright (c) 1998-2008, 2017 Greg Roelofs. All rights reserved.
-
- This software is provided "as is," without warranty of any kind,
- express or implied. In no event shall the author or contributors
- be held liable for any damages arising in any way from the use of
- this software.
-
- The contents of this file are DUAL-LICENSED. You may modify and/or
- redistribute this software according to the terms of one of the
- following two licenses (at your option):
-
-
- LICENSE 1 ("BSD-like with advertising clause"):
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute
- it freely, subject to the following restrictions:
-
- 1. Redistributions of source code must retain the above copyright
- notice, disclaimer, and this list of conditions.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, disclaimer, and this list of conditions in the documenta-
- tion and/or other materials provided with the distribution.
- 3. All advertising materials mentioning features or use of this
- software must display the following acknowledgment:
-
- This product includes software developed by Greg Roelofs
- and contributors for the book, "PNG: The Definitive Guide,"
- published by O'Reilly and Associates.
-
-
- LICENSE 2 (GNU GPL v2 or later):
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- ---------------------------------------------------------------------------*/
-
-#define PROGNAME "rpng-x"
-#define LONGNAME "Simple PNG Viewer for X"
-#define VERSION "2.02 of 15 June 2014"
-#define RESNAME "rpng" /* our X resource application name */
-#define RESCLASS "Rpng" /* our X resource class name */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/Xos.h>
-#include <X11/keysym.h>
-
-/* #define DEBUG : this enables the Trace() macros */
-
-#include "readpng.h" /* typedefs, common macros, readpng prototypes */
-
-
-/* could just include png.h, but this macro is the only thing we need
- * (name and typedefs changed to local versions); note that side effects
- * only happen with alpha (which could easily be avoided with
- * "ush acopy = (alpha);") */
-
-#define alpha_composite(composite, fg, alpha, bg) { \
- ush temp = ((ush)(fg)*(ush)(alpha) + \
- (ush)(bg)*(ush)(255 - (ush)(alpha)) + (ush)128); \
- (composite) = (uch)((temp + (temp >> 8)) >> 8); \
-}
-
-
-/* local prototypes */
-static int rpng_x_create_window(void);
-static int rpng_x_display_image(void);
-static void rpng_x_cleanup(void);
-static int rpng_x_msb(ulg u32val);
-
-
-static char titlebar[1024], *window_name = titlebar;
-static char *appname = LONGNAME;
-static char *icon_name = PROGNAME;
-static char *res_name = RESNAME;
-static char *res_class = RESCLASS;
-static char *filename;
-static FILE *infile;
-
-static char *bgstr;
-static uch bg_red=0, bg_green=0, bg_blue=0;
-
-static double display_exponent;
-
-static ulg image_width, image_height, image_rowbytes;
-static int image_channels;
-static uch *image_data;
-
-/* X-specific variables */
-static char *displayname;
-static XImage *ximage;
-static Display *display;
-static int depth;
-static Visual *visual;
-static XVisualInfo *visual_list;
-static int RShift, GShift, BShift;
-static ulg RMask, GMask, BMask;
-static Window window;
-static GC gc;
-static Colormap colormap;
-
-static int have_nondefault_visual = FALSE;
-static int have_colormap = FALSE;
-static int have_window = FALSE;
-static int have_gc = FALSE;
-/*
-ulg numcolors=0, pixels[256];
-ush reds[256], greens[256], blues[256];
- */
-
-
-
-
-int main(int argc, char **argv)
-{
-#ifdef sgi
- char tmpline[80];
-#endif
- char *p;
- int rc, alen, flen;
- int error = 0;
- int have_bg = FALSE;
- double LUT_exponent; /* just the lookup table */
- double CRT_exponent = 2.2; /* just the monitor */
- double default_display_exponent; /* whole display system */
- XEvent e;
- KeySym k;
-
-
- displayname = (char *)NULL;
- filename = (char *)NULL;
-
-
- /* First set the default value for our display-system exponent, i.e.,
- * the product of the CRT exponent and the exponent corresponding to
- * the frame-buffer's lookup table (LUT), if any. This is not an
- * exhaustive list of LUT values (e.g., OpenStep has a lot of weird
- * ones), but it should cover 99% of the current possibilities. */
-
-#if defined(NeXT)
- LUT_exponent = 1.0 / 2.2;
- /*
- if (some_next_function_that_returns_gamma(&next_gamma))
- LUT_exponent = 1.0 / next_gamma;
- */
-#elif defined(sgi)
- LUT_exponent = 1.0 / 1.7;
- /* there doesn't seem to be any documented function to get the
- * "gamma" value, so we do it the hard way */
- infile = fopen("/etc/config/system.glGammaVal", "r");
- if (infile) {
- double sgi_gamma;
-
- fgets(tmpline, 80, infile);
- fclose(infile);
- sgi_gamma = atof(tmpline);
- if (sgi_gamma > 0.0)
- LUT_exponent = 1.0 / sgi_gamma;
- }
-#elif defined(Macintosh)
- LUT_exponent = 1.8 / 2.61;
- /*
- if (some_mac_function_that_returns_gamma(&mac_gamma))
- LUT_exponent = mac_gamma / 2.61;
- */
-#else
- LUT_exponent = 1.0; /* assume no LUT: most PCs */
-#endif
-
- /* the defaults above give 1.0, 1.3, 1.5 and 2.2, respectively: */
- default_display_exponent = LUT_exponent * CRT_exponent;
-
-
- /* If the user has set the SCREEN_GAMMA environment variable as suggested
- * (somewhat imprecisely) in the libpng documentation, use that; otherwise
- * use the default value we just calculated. Either way, the user may
- * override this via a command-line option. */
-
- if ((p = getenv("SCREEN_GAMMA")) != NULL)
- display_exponent = atof(p);
- else
- display_exponent = default_display_exponent;
-
-
- /* Now parse the command line for options and the PNG filename. */
-
- while (*++argv && !error) {
- if (!strncmp(*argv, "-display", 2)) {
- if (!*++argv)
- ++error;
- else
- displayname = *argv;
- } else if (!strncmp(*argv, "-gamma", 2)) {
- if (!*++argv)
- ++error;
- else {
- display_exponent = atof(*argv);
- if (display_exponent <= 0.0)
- ++error;
- }
- } else if (!strncmp(*argv, "-bgcolor", 2)) {
- if (!*++argv)
- ++error;
- else {
- bgstr = *argv;
- if (strlen(bgstr) != 7 || bgstr[0] != '#')
- ++error;
- else
- have_bg = TRUE;
- }
- } else {
- if (**argv != '-') {
- filename = *argv;
- if (argv[1]) /* shouldn't be any more args after filename */
- ++error;
- } else
- ++error; /* not expecting any other options */
- }
- }
-
- if (!filename)
- ++error;
-
-
- /* print usage screen if any errors up to this point */
-
- if (error) {
- fprintf(stderr, "\n%s %s: %s\n", PROGNAME, VERSION, appname);
- readpng_version_info();
- fprintf(stderr, "\n"
- "Usage: %s [-display xdpy] [-gamma exp] [-bgcolor bg] file.png\n"
- " xdpy\tname of the target X display (e.g., ``hostname:0'')\n"
- " exp \ttransfer-function exponent (``gamma'') of the display\n"
- "\t\t system in floating-point format (e.g., ``%.1f''); equal\n",
- PROGNAME, default_display_exponent);
-
- fprintf(stderr, "\n"
- "\t\t to the product of the lookup-table exponent (varies)\n"
- "\t\t and the CRT exponent (usually 2.2); must be positive\n"
- " bg \tdesired background color in 7-character hex RGB format\n"
- "\t\t (e.g., ``#ff7700'' for orange: same as HTML colors);\n"
- "\t\t used with transparent images\n"
- "\nPress Q, Esc or mouse button 1 (within image window, after image\n"
- "is displayed) to quit.\n");
- exit(1);
- }
-
-
- if (!(infile = fopen(filename, "rb"))) {
- fprintf(stderr, PROGNAME ": can't open PNG file [%s]\n", filename);
- ++error;
- } else {
- if ((rc = readpng_init(infile, &image_width, &image_height)) != 0) {
- switch (rc) {
- case 1:
- fprintf(stderr, PROGNAME
- ": [%s] is not a PNG file: incorrect signature\n",
- filename);
- break;
- case 2:
- fprintf(stderr, PROGNAME
- ": [%s] has bad IHDR (libpng longjmp)\n", filename);
- break;
- case 4:
- fprintf(stderr, PROGNAME ": insufficient memory\n");
- break;
- default:
- fprintf(stderr, PROGNAME
- ": unknown readpng_init() error\n");
- break;
- }
- ++error;
- } else {
- display = XOpenDisplay(displayname);
- if (!display) {
- readpng_cleanup(TRUE);
- fprintf(stderr, PROGNAME ": can't open X display [%s]\n",
- displayname? displayname : "default");
- ++error;
- }
- }
- if (error)
- fclose(infile);
- }
-
-
- if (error) {
- fprintf(stderr, PROGNAME ": aborting.\n");
- exit(2);
- }
-
-
- /* set the title-bar string, but make sure buffer doesn't overflow */
-
- alen = strlen(appname);
- flen = strlen(filename);
- if (alen + flen + 3 > 1023)
- sprintf(titlebar, "%s: ...%s", appname, filename+(alen+flen+6-1023));
- else
- sprintf(titlebar, "%s: %s", appname, filename);
-
-
- /* if the user didn't specify a background color on the command line,
- * check for one in the PNG file--if not, the initialized values of 0
- * (black) will be used */
-
- if (have_bg) {
- unsigned r, g, b; /* this approach quiets compiler warnings */
-
- sscanf(bgstr+1, "%2x%2x%2x", &r, &g, &b);
- bg_red = (uch)r;
- bg_green = (uch)g;
- bg_blue = (uch)b;
- } else if (readpng_get_bgcolor(&bg_red, &bg_green, &bg_blue) > 1) {
- readpng_cleanup(TRUE);
- fprintf(stderr, PROGNAME
- ": libpng error while checking for background color\n");
- exit(2);
- }
-
-
- /* do the basic X initialization stuff, make the window and fill it
- * with the background color */
-
- if (rpng_x_create_window())
- exit(2);
-
-
- /* decode the image, all at once */
-
- Trace((stderr, "calling readpng_get_image()\n"))
- image_data = readpng_get_image(display_exponent, &image_channels,
- &image_rowbytes);
- Trace((stderr, "done with readpng_get_image()\n"))
-
-
- /* done with PNG file, so clean up to minimize memory usage (but do NOT
- * nuke image_data!) */
-
- readpng_cleanup(FALSE);
- fclose(infile);
-
- if (!image_data) {
- fprintf(stderr, PROGNAME ": unable to decode PNG image\n");
- exit(3);
- }
-
-
- /* display image (composite with background if requested) */
-
- Trace((stderr, "calling rpng_x_display_image()\n"))
- if (rpng_x_display_image()) {
- free(image_data);
- exit(4);
- }
- Trace((stderr, "done with rpng_x_display_image()\n"))
-
-
- /* wait for the user to tell us when to quit */
-
- printf(
- "Done. Press Q, Esc or mouse button 1 (within image window) to quit.\n");
- fflush(stdout);
-
- do
- XNextEvent(display, &e);
- while (!(e.type == ButtonPress && e.xbutton.button == Button1) &&
- !(e.type == KeyPress && /* v--- or 1 for shifted keys */
- ((k = XLookupKeysym(&e.xkey, 0)) == XK_q || k == XK_Escape) ));
-
-
- /* OK, we're done: clean up all image and X resources and go away */
-
- rpng_x_cleanup();
-
- (void)argc; /* Unused */
-
- return 0;
-}
-
-
-
-
-
-static int rpng_x_create_window(void)
-{
- uch *xdata;
- int need_colormap = FALSE;
- int screen, pad;
- ulg bg_pixel = 0L;
- ulg attrmask;
- Window root;
- XEvent e;
- XGCValues gcvalues;
- XSetWindowAttributes attr;
- XTextProperty windowName, *pWindowName = &windowName;
- XTextProperty iconName, *pIconName = &iconName;
- XVisualInfo visual_info;
- XSizeHints *size_hints;
- XWMHints *wm_hints;
- XClassHint *class_hints;
-
-
- screen = DefaultScreen(display);
- depth = DisplayPlanes(display, screen);
- root = RootWindow(display, screen);
-
-#ifdef DEBUG
- XSynchronize(display, True);
-#endif
-
-#if 0
-/* GRR: add 8-bit support */
- if (/* depth != 8 && */ depth != 16 && depth != 24 && depth != 32) {
- fprintf(stderr,
- "screen depth %d not supported (only 16-, 24- or 32-bit TrueColor)\n",
- depth);
- return 2;
- }
-
- XMatchVisualInfo(display, screen, depth,
- (depth == 8)? PseudoColor : TrueColor, &visual_info);
- visual = visual_info.visual;
-#else
- if (depth != 16 && depth != 24 && depth != 32) {
- int visuals_matched = 0;
-
- Trace((stderr, "default depth is %d: checking other visuals\n",
- depth))
-
- /* 24-bit first */
- visual_info.screen = screen;
- visual_info.depth = 24;
- visual_list = XGetVisualInfo(display,
- VisualScreenMask | VisualDepthMask, &visual_info, &visuals_matched);
- if (visuals_matched == 0) {
-/* GRR: add 15-, 16- and 32-bit TrueColor visuals (also DirectColor?) */
- fprintf(stderr, "default screen depth %d not supported, and no"
- " 24-bit visuals found\n", depth);
- return 2;
- }
- Trace((stderr, "XGetVisualInfo() returned %d 24-bit visuals\n",
- visuals_matched))
- visual = visual_list[0].visual;
- depth = visual_list[0].depth;
-/*
- colormap_size = visual_list[0].colormap_size;
- visual_class = visual->class;
- visualID = XVisualIDFromVisual(visual);
- */
- have_nondefault_visual = TRUE;
- need_colormap = TRUE;
- } else {
- XMatchVisualInfo(display, screen, depth, TrueColor, &visual_info);
- visual = visual_info.visual;
- }
-#endif
-
- RMask = visual->red_mask;
- GMask = visual->green_mask;
- BMask = visual->blue_mask;
-
-/* GRR: add/check 8-bit support */
- if (depth == 8 || need_colormap) {
- colormap = XCreateColormap(display, root, visual, AllocNone);
- if (!colormap) {
- fprintf(stderr, "XCreateColormap() failed\n");
- return 2;
- }
- have_colormap = TRUE;
- }
- if (depth == 15 || depth == 16) {
- RShift = 15 - rpng_x_msb(RMask); /* these are right-shifts */
- GShift = 15 - rpng_x_msb(GMask);
- BShift = 15 - rpng_x_msb(BMask);
- } else if (depth > 16) {
-#define NO_24BIT_MASKS
-#ifdef NO_24BIT_MASKS
- RShift = rpng_x_msb(RMask) - 7; /* these are left-shifts */
- GShift = rpng_x_msb(GMask) - 7;
- BShift = rpng_x_msb(BMask) - 7;
-#else
- RShift = 7 - rpng_x_msb(RMask); /* these are right-shifts, too */
- GShift = 7 - rpng_x_msb(GMask);
- BShift = 7 - rpng_x_msb(BMask);
-#endif
- }
- if (depth >= 15 && (RShift < 0 || GShift < 0 || BShift < 0)) {
- fprintf(stderr, "rpng internal logic error: negative X shift(s)!\n");
- return 2;
- }
-
-/*---------------------------------------------------------------------------
- Finally, create the window.
- ---------------------------------------------------------------------------*/
-
- attr.backing_store = Always;
- attr.event_mask = ExposureMask | KeyPressMask | ButtonPressMask;
- attrmask = CWBackingStore | CWEventMask;
- if (have_nondefault_visual) {
- attr.colormap = colormap;
- attr.background_pixel = 0;
- attr.border_pixel = 1;
- attrmask |= CWColormap | CWBackPixel | CWBorderPixel;
- }
-
- window = XCreateWindow(display, root, 0, 0, image_width, image_height, 0,
- depth, InputOutput, visual, attrmask, &attr);
-
- if (window == None) {
- fprintf(stderr, "XCreateWindow() failed\n");
- return 2;
- } else
- have_window = TRUE;
-
- if (depth == 8)
- XSetWindowColormap(display, window, colormap);
-
- if (!XStringListToTextProperty(&window_name, 1, pWindowName))
- pWindowName = NULL;
- if (!XStringListToTextProperty(&icon_name, 1, pIconName))
- pIconName = NULL;
-
- /* OK if any hints allocation fails; XSetWMProperties() allows NULLs */
-
- if ((size_hints = XAllocSizeHints()) != NULL) {
- /* window will not be resizable */
- size_hints->flags = PMinSize | PMaxSize;
- size_hints->min_width = size_hints->max_width = (int)image_width;
- size_hints->min_height = size_hints->max_height = (int)image_height;
- }
-
- if ((wm_hints = XAllocWMHints()) != NULL) {
- wm_hints->initial_state = NormalState;
- wm_hints->input = True;
- /* wm_hints->icon_pixmap = icon_pixmap; */
- wm_hints->flags = StateHint | InputHint /* | IconPixmapHint */ ;
- }
-
- if ((class_hints = XAllocClassHint()) != NULL) {
- class_hints->res_name = res_name;
- class_hints->res_class = res_class;
- }
-
- XSetWMProperties(display, window, pWindowName, pIconName, NULL, 0,
- size_hints, wm_hints, class_hints);
-
- /* various properties and hints no longer needed; free memory */
- if (pWindowName)
- XFree(pWindowName->value);
- if (pIconName)
- XFree(pIconName->value);
- if (size_hints)
- XFree(size_hints);
- if (wm_hints)
- XFree(wm_hints);
- if (class_hints)
- XFree(class_hints);
-
- XMapWindow(display, window);
-
- gc = XCreateGC(display, window, 0, &gcvalues);
- have_gc = TRUE;
-
-/*---------------------------------------------------------------------------
- Fill window with the specified background color.
- ---------------------------------------------------------------------------*/
-
- if (depth == 24 || depth == 32) {
- bg_pixel = ((ulg)bg_red << RShift) |
- ((ulg)bg_green << GShift) |
- ((ulg)bg_blue << BShift);
- } else if (depth == 16) {
- bg_pixel = ((((ulg)bg_red << 8) >> RShift) & RMask) |
- ((((ulg)bg_green << 8) >> GShift) & GMask) |
- ((((ulg)bg_blue << 8) >> BShift) & BMask);
- } else /* depth == 8 */ {
-
- /* GRR: add 8-bit support */
-
- }
-
- XSetForeground(display, gc, bg_pixel);
- XFillRectangle(display, window, gc, 0, 0, image_width, image_height);
-
-/*---------------------------------------------------------------------------
- Wait for first Expose event to do any drawing, then flush.
- ---------------------------------------------------------------------------*/
-
- do
- XNextEvent(display, &e);
- while (e.type != Expose || e.xexpose.count);
-
- XFlush(display);
-
-/*---------------------------------------------------------------------------
- Allocate memory for the X- and display-specific version of the image.
- ---------------------------------------------------------------------------*/
-
- if (depth == 24 || depth == 32) {
- xdata = (uch *)malloc(4*image_width*image_height);
- pad = 32;
- } else if (depth == 16) {
- xdata = (uch *)malloc(2*image_width*image_height);
- pad = 16;
- } else /* depth == 8 */ {
- xdata = (uch *)malloc(image_width*image_height);
- pad = 8;
- }
-
- if (!xdata) {
- fprintf(stderr, PROGNAME ": unable to allocate image memory\n");
- return 4;
- }
-
- ximage = XCreateImage(display, visual, depth, ZPixmap, 0,
- (char *)xdata, image_width, image_height, pad, 0);
-
- if (!ximage) {
- fprintf(stderr, PROGNAME ": XCreateImage() failed\n");
- free(xdata);
- return 3;
- }
-
- /* to avoid testing the byte order every pixel (or doubling the size of
- * the drawing routine with a giant if-test), we arbitrarily set the byte
- * order to MSBFirst and let Xlib worry about inverting things on little-
- * endian machines (like Linux/x86, old VAXen, etc.)--this is not the most
- * efficient approach (the giant if-test would be better), but in the
- * interest of clarity, we take the easy way out... */
-
- ximage->byte_order = MSBFirst;
-
- return 0;
-
-} /* end function rpng_x_create_window() */
-
-
-
-
-
-static int rpng_x_display_image(void)
-{
- uch *src;
- char *dest;
- uch r, g, b, a;
- ulg i, row, lastrow = 0;
- ulg pixel;
- int ximage_rowbytes = ximage->bytes_per_line;
-/* int bpp = ximage->bits_per_pixel; */
-
-
- Trace((stderr, "beginning display loop (image_channels == %d)\n",
- image_channels))
- Trace((stderr, " (width = %ld, rowbytes = %ld, ximage_rowbytes = %d)\n",
- image_width, image_rowbytes, ximage_rowbytes))
- Trace((stderr, " (bpp = %d)\n", ximage->bits_per_pixel))
- Trace((stderr, " (byte_order = %s)\n", ximage->byte_order == MSBFirst?
- "MSBFirst" : (ximage->byte_order == LSBFirst? "LSBFirst" : "unknown")))
-
- if (depth == 24 || depth == 32) {
- ulg red, green, blue;
-
- for (lastrow = row = 0; row < image_height; ++row) {
- src = image_data + row*image_rowbytes;
- dest = ximage->data + row*ximage_rowbytes;
- if (image_channels == 3) {
- for (i = image_width; i > 0; --i) {
- red = *src++;
- green = *src++;
- blue = *src++;
-#ifdef NO_24BIT_MASKS
- pixel = (red << RShift) |
- (green << GShift) |
- (blue << BShift);
- /* recall that we set ximage->byte_order = MSBFirst above */
- /* GRR BUG: this assumes bpp == 32, but may be 24: */
- *dest++ = (char)((pixel >> 24) & 0xff);
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
-#else
- red = (RShift < 0)? red << (-RShift) : red >> RShift;
- green = (GShift < 0)? green << (-GShift) : green >> GShift;
- blue = (BShift < 0)? blue << (-BShift) : blue >> BShift;
- pixel = (red & RMask) | (green & GMask) | (blue & BMask);
- /* recall that we set ximage->byte_order = MSBFirst above */
- *dest++ = (char)((pixel >> 24) & 0xff);
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
-#endif
- }
- } else /* if (image_channels == 4) */ {
- for (i = image_width; i > 0; --i) {
- r = *src++;
- g = *src++;
- b = *src++;
- a = *src++;
- if (a == 255) {
- red = r;
- green = g;
- blue = b;
- } else if (a == 0) {
- red = bg_red;
- green = bg_green;
- blue = bg_blue;
- } else {
- /* this macro (from png.h) composites the foreground
- * and background values and puts the result into the
- * first argument */
- alpha_composite(red, r, a, bg_red);
- alpha_composite(green, g, a, bg_green);
- alpha_composite(blue, b, a, bg_blue);
- }
- pixel = (red << RShift) |
- (green << GShift) |
- (blue << BShift);
- /* recall that we set ximage->byte_order = MSBFirst above */
- *dest++ = (char)((pixel >> 24) & 0xff);
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
- }
- /* display after every 16 lines */
- if (((row+1) & 0xf) == 0) {
- XPutImage(display, window, gc, ximage, 0, (int)lastrow, 0,
- (int)lastrow, image_width, 16);
- XFlush(display);
- lastrow = row + 1;
- }
- }
-
- } else if (depth == 16) {
- ush red, green, blue;
-
- for (lastrow = row = 0; row < image_height; ++row) {
- src = image_data + row*image_rowbytes;
- dest = ximage->data + row*ximage_rowbytes;
- if (image_channels == 3) {
- for (i = image_width; i > 0; --i) {
- red = ((ush)(*src) << 8);
- ++src;
- green = ((ush)(*src) << 8);
- ++src;
- blue = ((ush)(*src) << 8);
- ++src;
- pixel = ((red >> RShift) & RMask) |
- ((green >> GShift) & GMask) |
- ((blue >> BShift) & BMask);
- /* recall that we set ximage->byte_order = MSBFirst above */
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
- } else /* if (image_channels == 4) */ {
- for (i = image_width; i > 0; --i) {
- r = *src++;
- g = *src++;
- b = *src++;
- a = *src++;
- if (a == 255) {
- red = ((ush)r << 8);
- green = ((ush)g << 8);
- blue = ((ush)b << 8);
- } else if (a == 0) {
- red = ((ush)bg_red << 8);
- green = ((ush)bg_green << 8);
- blue = ((ush)bg_blue << 8);
- } else {
- /* this macro (from png.h) composites the foreground
- * and background values and puts the result back into
- * the first argument (== fg byte here: safe) */
- alpha_composite(r, r, a, bg_red);
- alpha_composite(g, g, a, bg_green);
- alpha_composite(b, b, a, bg_blue);
- red = ((ush)r << 8);
- green = ((ush)g << 8);
- blue = ((ush)b << 8);
- }
- pixel = ((red >> RShift) & RMask) |
- ((green >> GShift) & GMask) |
- ((blue >> BShift) & BMask);
- /* recall that we set ximage->byte_order = MSBFirst above */
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
- }
- /* display after every 16 lines */
- if (((row+1) & 0xf) == 0) {
- XPutImage(display, window, gc, ximage, 0, (int)lastrow, 0,
- (int)lastrow, image_width, 16);
- XFlush(display);
- lastrow = row + 1;
- }
- }
-
- } else /* depth == 8 */ {
-
- /* GRR: add 8-bit support */
-
- }
-
- Trace((stderr, "calling final XPutImage()\n"))
- if (lastrow < image_height) {
- XPutImage(display, window, gc, ximage, 0, (int)lastrow, 0,
- (int)lastrow, image_width, image_height-lastrow);
- XFlush(display);
- }
-
- return 0;
-}
-
-
-
-
-static void rpng_x_cleanup(void)
-{
- if (image_data) {
- free(image_data);
- image_data = NULL;
- }
-
- if (ximage) {
- if (ximage->data) {
- free(ximage->data); /* we allocated it, so we free it */
- ximage->data = (char *)NULL; /* instead of XDestroyImage() */
- }
- XDestroyImage(ximage);
- ximage = NULL;
- }
-
- if (have_gc)
- XFreeGC(display, gc);
-
- if (have_window)
- XDestroyWindow(display, window);
-
- if (have_colormap)
- XFreeColormap(display, colormap);
-
- if (have_nondefault_visual)
- XFree(visual_list);
-}
-
-
-
-
-
-static int rpng_x_msb(ulg u32val)
-{
- int i;
-
- for (i = 31; i >= 0; --i) {
- if (u32val & 0x80000000L)
- break;
- u32val <<= 1;
- }
- return i;
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/rpng2-win.c b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/rpng2-win.c
deleted file mode 100644
index ed6b526..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/rpng2-win.c
+++ /dev/null
@@ -1,1261 +0,0 @@
-/*---------------------------------------------------------------------------
-
- rpng2 - progressive-model PNG display program rpng2-win.c
-
- This program decodes and displays PNG files progressively, as if it were
- a web browser (though the front end is only set up to read from files).
- It supports gamma correction, user-specified background colors, and user-
- specified background patterns (for transparent images). This version is
- for 32-bit Windows; it may compile under 16-bit Windows with a little
- tweaking (or maybe not). Thanks to Adam Costello and Pieter S. van der
- Meulen for the "diamond" and "radial waves" patterns, respectively.
-
- to do (someday, maybe):
- - handle quoted command-line args (especially filenames with spaces)
- - finish resizable checkerboard-gradient (sizes 4-128?)
- - use %.1023s to simplify truncation of title-bar string?
- - have minimum window width: oh well
-
- ---------------------------------------------------------------------------
-
- Changelog:
- - 1.01: initial public release
- - 1.02: fixed cut-and-paste error in usage screen (oops...)
- - 1.03: modified to allow abbreviated options
- - 1.04: removed bogus extra argument from usage fprintf() [Glenn R-P?];
- fixed command-line parsing bug
- - 1.10: enabled "message window"/console (thanks to David Geldreich)
- - 1.20: added runtime MMX-enabling/disabling and new -mmx* options
- - 1.21: made minor tweak to usage screen to fit within 25-line console
- - 1.22: added AMD64/EM64T support (__x86_64__)
- - 2.00: dual-licensed (added GNU GPL)
- - 2.01: fixed 64-bit typo in readpng2.c
- - 2.02: fixed improper display of usage screen on PNG error(s); fixed
- unexpected-EOF and file-read-error cases
- - 2.03: removed runtime MMX-enabling/disabling and obsolete -mmx* options
- - 2.04: check for integer overflow (Glenn R-P)
-
- ---------------------------------------------------------------------------
-
- Copyright (c) 1998-2008, 2017 Greg Roelofs. All rights reserved.
-
- This software is provided "as is," without warranty of any kind,
- express or implied. In no event shall the author or contributors
- be held liable for any damages arising in any way from the use of
- this software.
-
- The contents of this file are DUAL-LICENSED. You may modify and/or
- redistribute this software according to the terms of one of the
- following two licenses (at your option):
-
-
- LICENSE 1 ("BSD-like with advertising clause"):
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute
- it freely, subject to the following restrictions:
-
- 1. Redistributions of source code must retain the above copyright
- notice, disclaimer, and this list of conditions.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, disclaimer, and this list of conditions in the documenta-
- tion and/or other materials provided with the distribution.
- 3. All advertising materials mentioning features or use of this
- software must display the following acknowledgment:
-
- This product includes software developed by Greg Roelofs
- and contributors for the book, "PNG: The Definitive Guide,"
- published by O'Reilly and Associates.
-
-
- LICENSE 2 (GNU GPL v2 or later):
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- ---------------------------------------------------------------------------*/
-
-#define PROGNAME "rpng2-win"
-#define LONGNAME "Progressive PNG Viewer for Windows"
-#define VERSION "2.02 of 16 March 2008"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <setjmp.h> /* for jmpbuf declaration in readpng2.h */
-#include <time.h>
-#include <math.h> /* only for PvdM background code */
-#include <windows.h>
-#ifdef __CYGWIN__
-/* getch replacement. Turns out, we don't really need this,
- * but leave it here if we ever enable any of the uses of
- * _getch in the main code
- */
-#include <unistd.h>
-#include <termio.h>
-#include <sys/ioctl.h>
-int repl_getch( void )
-{
- char ch;
- int fd = fileno(stdin);
- struct termio old_tty, new_tty;
-
- ioctl(fd, TCGETA, &old_tty);
- new_tty = old_tty;
- new_tty.c_lflag &= ~(ICANON | ECHO | ISIG);
- ioctl(fd, TCSETA, &new_tty);
- fread(&ch, 1, sizeof(ch), stdin);
- ioctl(fd, TCSETA, &old_tty);
-
- return ch;
-}
-#define _getch repl_getch
-#else
-#include <conio.h> /* only for _getch() */
-#endif
-
-/* all for PvdM background code: */
-#ifndef PI
-# define PI 3.141592653589793238
-#endif
-#define PI_2 (PI*0.5)
-#define INV_PI_360 (360.0 / PI)
-#define MAX(a,b) (a>b?a:b)
-#define MIN(a,b) (a<b?a:b)
-#define CLIP(a,min,max) MAX(min,MIN((a),max))
-#define ABS(a) ((a)<0?-(a):(a))
-#define CLIP8P(c) MAX(0,(MIN((c),255))) /* 8-bit pos. integer (uch) */
-#define ROUNDF(f) ((int)(f + 0.5))
-
-#define rgb1_max bg_freq
-#define rgb1_min bg_gray
-#define rgb2_max bg_bsat
-#define rgb2_min bg_brot
-
-/* #define DEBUG */ /* this enables the Trace() macros */
-
-#include "readpng2.h" /* typedefs, common macros, readpng2 prototypes */
-
-
-/* could just include png.h, but this macro is the only thing we need
- * (name and typedefs changed to local versions); note that side effects
- * only happen with alpha (which could easily be avoided with
- * "ush acopy = (alpha);") */
-
-#define alpha_composite(composite, fg, alpha, bg) { \
- ush temp = ((ush)(fg)*(ush)(alpha) + \
- (ush)(bg)*(ush)(255 - (ush)(alpha)) + (ush)128); \
- (composite) = (uch)((temp + (temp >> 8)) >> 8); \
-}
-
-
-#define INBUFSIZE 4096 /* with pseudo-timing on (1 sec delay/block), this
- * block size corresponds roughly to a download
- * speed 10% faster than theoretical 33.6K maximum
- * (assuming 8 data bits, 1 stop bit and no other
- * overhead) */
-
-/* local prototypes */
-static void rpng2_win_init(void);
-static int rpng2_win_create_window(void);
-static int rpng2_win_load_bg_image(void);
-static void rpng2_win_display_row(ulg row);
-static void rpng2_win_finish_display(void);
-static void rpng2_win_cleanup(void);
-LRESULT CALLBACK rpng2_win_wndproc(HWND, UINT, WPARAM, LPARAM);
-
-
-static char titlebar[1024];
-static char *progname = PROGNAME;
-static char *appname = LONGNAME;
-static char *filename;
-static FILE *infile;
-
-static mainprog_info rpng2_info;
-
-static uch inbuf[INBUFSIZE];
-static int incount;
-
-static int pat = 6; /* must be less than num_bgpat */
-static int bg_image = 0;
-static int bgscale = 16;
-static ulg bg_rowbytes;
-static uch *bg_data;
-
-static struct rgb_color {
- uch r, g, b;
-} rgb[] = {
- { 0, 0, 0}, /* 0: black */
- {255, 255, 255}, /* 1: white */
- {173, 132, 57}, /* 2: tan */
- { 64, 132, 0}, /* 3: medium green */
- {189, 117, 1}, /* 4: gold */
- {253, 249, 1}, /* 5: yellow */
- { 0, 0, 255}, /* 6: blue */
- { 0, 0, 120}, /* 7: medium blue */
- {255, 0, 255}, /* 8: magenta */
- { 64, 0, 64}, /* 9: dark magenta */
- {255, 0, 0}, /* 10: red */
- { 64, 0, 0}, /* 11: dark red */
- {255, 127, 0}, /* 12: orange */
- {192, 96, 0}, /* 13: darker orange */
- { 24, 60, 0}, /* 14: dark green-yellow */
- { 85, 125, 200} /* 15: ice blue */
-};
-/* not used for now, but should be for error-checking:
-static int num_rgb = sizeof(rgb) / sizeof(struct rgb_color);
- */
-
-/*
- This whole struct is a fairly cheesy way to keep the number of
- command-line options to a minimum. The radial-waves background
- type is a particularly poor fit to the integer elements of the
- struct...but a few macros and a little fixed-point math will do
- wonders for ya.
-
- type bits:
- F E D C B A 9 8 7 6 5 4 3 2 1 0
- | | | | |
- | | +-+-+-- 0 = sharp-edged checkerboard
- | | 1 = soft diamonds
- | | 2 = radial waves
- | | 3-7 = undefined
- | +-- gradient #2 inverted?
- +-- alternating columns inverted?
- */
-static struct background_pattern {
- ush type;
- int rgb1_max, rgb1_min; /* or bg_freq, bg_gray */
- int rgb2_max, rgb2_min; /* or bg_bsat, bg_brot (both scaled by 10)*/
-} bg[] = {
- {0+8, 2,0, 1,15}, /* checkered: tan/black vs. white/ice blue */
- {0+24, 2,0, 1,0}, /* checkered: tan/black vs. white/black */
- {0+8, 4,5, 0,2}, /* checkered: gold/yellow vs. black/tan */
- {0+8, 4,5, 0,6}, /* checkered: gold/yellow vs. black/blue */
- {0, 7,0, 8,9}, /* checkered: deep blue/black vs. magenta */
- {0+8, 13,0, 5,14}, /* checkered: orange/black vs. yellow */
- {0+8, 12,0, 10,11}, /* checkered: orange/black vs. red */
- {1, 7,0, 8,0}, /* diamonds: deep blue/black vs. magenta */
- {1, 12,0, 11,0}, /* diamonds: orange vs. dark red */
- {1, 10,0, 7,0}, /* diamonds: red vs. medium blue */
- {1, 4,0, 5,0}, /* diamonds: gold vs. yellow */
- {1, 3,0, 0,0}, /* diamonds: medium green vs. black */
- {2, 16, 100, 20, 0}, /* radial: ~hard radial color-beams */
- {2, 18, 100, 10, 2}, /* radial: soft, curved radial color-beams */
- {2, 16, 256, 100, 250}, /* radial: very tight spiral */
- {2, 10000, 256, 11, 0} /* radial: dipole-moire' (almost fractal) */
-};
-static int num_bgpat = sizeof(bg) / sizeof(struct background_pattern);
-
-
-/* Windows-specific global variables (could go in struct, but messy...) */
-static ulg wimage_rowbytes;
-static uch *dib;
-static uch *wimage_data;
-static BITMAPINFOHEADER *bmih;
-
-static HWND global_hwnd;
-static HINSTANCE global_hInst;
-static int global_showmode;
-
-
-
-
-int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
-{
- char *args[1024]; /* arbitrary limit, but should suffice */
- char **argv = args;
- char *p, *q, *bgstr = NULL;
- int argc = 0;
- int rc, alen, flen;
- int error = 0;
- int timing = FALSE;
- int have_bg = FALSE;
- double LUT_exponent; /* just the lookup table */
- double CRT_exponent = 2.2; /* just the monitor */
- double default_display_exponent; /* whole display system */
- MSG msg;
-
-
- /* First initialize a few things, just to be sure--memset takes care of
- * default background color (black), booleans (FALSE), pointers (NULL),
- * etc. */
-
- global_hInst = hInst;
- global_showmode = showmode;
- filename = (char *)NULL;
- memset(&rpng2_info, 0, sizeof(mainprog_info));
-
-#ifndef __CYGWIN__
- /* Next reenable console output, which normally goes to the bit bucket
- * for windowed apps. Closing the console window will terminate the
- * app. Thanks to David.Geldreich at realviz.com for supplying the magical
- * incantation. */
-
- AllocConsole();
- freopen("CONOUT$", "a", stderr);
- freopen("CONOUT$", "a", stdout);
-#endif
-
- /* Set the default value for our display-system exponent, i.e., the
- * product of the CRT exponent and the exponent corresponding to
- * the frame-buffer's lookup table (LUT), if any. This is not an
- * exhaustive list of LUT values (e.g., OpenStep has a lot of weird
- * ones), but it should cover 99% of the current possibilities. And
- * yes, these ifdefs are completely wasted in a Windows program... */
-
-#if defined(NeXT)
- /* third-party utilities can modify the default LUT exponent */
- LUT_exponent = 1.0 / 2.2;
- /*
- if (some_next_function_that_returns_gamma(&next_gamma))
- LUT_exponent = 1.0 / next_gamma;
- */
-#elif defined(sgi)
- LUT_exponent = 1.0 / 1.7;
- /* there doesn't seem to be any documented function to
- * get the "gamma" value, so we do it the hard way */
- infile = fopen("/etc/config/system.glGammaVal", "r");
- if (infile) {
- double sgi_gamma;
-
- fgets(tmpline, 80, infile);
- fclose(infile);
- sgi_gamma = atof(tmpline);
- if (sgi_gamma > 0.0)
- LUT_exponent = 1.0 / sgi_gamma;
- }
-#elif defined(Macintosh)
- LUT_exponent = 1.8 / 2.61;
- /*
- if (some_mac_function_that_returns_gamma(&mac_gamma))
- LUT_exponent = mac_gamma / 2.61;
- */
-#else
- LUT_exponent = 1.0; /* assume no LUT: most PCs */
-#endif
-
- /* the defaults above give 1.0, 1.3, 1.5 and 2.2, respectively: */
- default_display_exponent = LUT_exponent * CRT_exponent;
-
-
- /* If the user has set the SCREEN_GAMMA environment variable as suggested
- * (somewhat imprecisely) in the libpng documentation, use that; otherwise
- * use the default value we just calculated. Either way, the user may
- * override this via a command-line option. */
-
- if ((p = getenv("SCREEN_GAMMA")) != NULL)
- rpng2_info.display_exponent = atof(p);
- else
- rpng2_info.display_exponent = default_display_exponent;
-
-
- /* Windows really hates command lines, so we have to set up our own argv.
- * Note that we do NOT bother with quoted arguments here, so don't use
- * filenames with spaces in 'em! */
-
- argv[argc++] = PROGNAME;
- p = cmd;
- for (;;) {
- if (*p == ' ')
- while (*++p == ' ')
- ;
- /* now p points at the first non-space after some spaces */
- if (*p == '\0')
- break; /* nothing after the spaces: done */
- argv[argc++] = q = p;
- while (*q && *q != ' ')
- ++q;
- /* now q points at a space or the end of the string */
- if (*q == '\0')
- break; /* last argv already terminated; quit */
- *q = '\0'; /* change space to terminator */
- p = q + 1;
- }
- argv[argc] = NULL; /* terminate the argv array itself */
-
-
- /* Now parse the command line for options and the PNG filename. */
-
- while (*++argv && !error) {
- if (!strncmp(*argv, "-gamma", 2)) {
- if (!*++argv)
- ++error;
- else {
- rpng2_info.display_exponent = atof(*argv);
- if (rpng2_info.display_exponent <= 0.0)
- ++error;
- }
- } else if (!strncmp(*argv, "-bgcolor", 4)) {
- if (!*++argv)
- ++error;
- else {
- bgstr = *argv;
- if (strlen(bgstr) != 7 || bgstr[0] != '#')
- ++error;
- else {
- have_bg = TRUE;
- bg_image = FALSE;
- }
- }
- } else if (!strncmp(*argv, "-bgpat", 4)) {
- if (!*++argv)
- ++error;
- else {
- pat = atoi(*argv) - 1;
- if (pat < 0 || pat >= num_bgpat)
- ++error;
- else {
- bg_image = TRUE;
- have_bg = FALSE;
- }
- }
- } else if (!strncmp(*argv, "-timing", 2)) {
- timing = TRUE;
- } else {
- if (**argv != '-') {
- filename = *argv;
- if (argv[1]) /* shouldn't be any more args after filename */
- ++error;
- } else
- ++error; /* not expecting any other options */
- }
- }
-
- if (!filename)
- ++error;
-
-
- /* print usage screen if any errors up to this point */
-
- if (error) {
-#ifndef __CYGWIN__
- int ch;
-#endif
-
- fprintf(stderr, "\n%s %s: %s\n\n", PROGNAME, VERSION, appname);
- readpng2_version_info();
- fprintf(stderr, "\n"
- "Usage: %s [-gamma exp] [-bgcolor bg | -bgpat pat] [-timing]\n"
- " %*s file.png\n\n"
- " exp \ttransfer-function exponent (``gamma'') of the display\n"
- "\t\t system in floating-point format (e.g., ``%.1f''); equal\n"
- "\t\t to the product of the lookup-table exponent (varies)\n"
- "\t\t and the CRT exponent (usually 2.2); must be positive\n"
- " bg \tdesired background color in 7-character hex RGB format\n"
- "\t\t (e.g., ``#ff7700'' for orange: same as HTML colors);\n"
- "\t\t used with transparent images; overrides -bgpat option\n"
- " pat \tdesired background pattern number (1-%d); used with\n"
- "\t\t transparent images; overrides -bgcolor option\n"
- " -timing\tenables delay for every block read, to simulate modem\n"
- "\t\t download of image (~36 Kbps)\n"
- "\nPress Q, Esc or mouse button 1 after image is displayed to quit.\n"
-#ifndef __CYGWIN__
- "Press Q or Esc to quit this usage screen. ",
-#else
- ,
-#endif
- PROGNAME,
-#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__)) && \
- !(defined(__CYGWIN__) || defined(__MINGW32__))
- (int)strlen(PROGNAME), " ",
-#endif
- (int)strlen(PROGNAME), " ", default_display_exponent, num_bgpat);
- fflush(stderr);
-#ifndef __CYGWIN__
- do
- ch = _getch();
- while (ch != 'q' && ch != 'Q' && ch != 0x1B);
-#endif
- exit(1);
- }
-
-
- if (!(infile = fopen(filename, "rb"))) {
- fprintf(stderr, PROGNAME ": can't open PNG file [%s]\n", filename);
- ++error;
- } else {
- incount = fread(inbuf, 1, INBUFSIZE, infile);
- if (incount < 8 || !readpng2_check_sig(inbuf, 8)) {
- fprintf(stderr, PROGNAME
- ": [%s] is not a PNG file: incorrect signature\n",
- filename);
- ++error;
- } else if ((rc = readpng2_init(&rpng2_info)) != 0) {
- switch (rc) {
- case 2:
- fprintf(stderr, PROGNAME
- ": [%s] has bad IHDR (libpng longjmp)\n", filename);
- break;
- case 4:
- fprintf(stderr, PROGNAME ": insufficient memory\n");
- break;
- default:
- fprintf(stderr, PROGNAME
- ": unknown readpng2_init() error\n");
- break;
- }
- ++error;
- }
- if (error)
- fclose(infile);
- }
-
-
- if (error) {
-#ifndef __CYGWIN__
- int ch;
-#endif
-
- fprintf(stderr, PROGNAME ": aborting.\n");
-#ifndef __CYGWIN__
- do
- ch = _getch();
- while (ch != 'q' && ch != 'Q' && ch != 0x1B);
-#endif
- exit(2);
- } else {
- fprintf(stderr, "\n%s %s: %s\n", PROGNAME, VERSION, appname);
-#ifndef __CYGWIN__
- fprintf(stderr,
- "\n [console window: closing this window will terminate %s]\n\n",
- PROGNAME);
-#endif
- fflush(stderr);
- }
-
-
- /* set the title-bar string, but make sure buffer doesn't overflow */
-
- alen = strlen(appname);
- flen = strlen(filename);
- if (alen + flen + 3 > 1023)
- sprintf(titlebar, "%s: ...%s", appname, filename+(alen+flen+6-1023));
- else
- sprintf(titlebar, "%s: %s", appname, filename);
-
-
- /* set some final rpng2_info variables before entering main data loop */
-
- if (have_bg) {
- unsigned r, g, b; /* this approach quiets compiler warnings */
-
- sscanf(bgstr+1, "%2x%2x%2x", &r, &g, &b);
- rpng2_info.bg_red = (uch)r;
- rpng2_info.bg_green = (uch)g;
- rpng2_info.bg_blue = (uch)b;
- } else
- rpng2_info.need_bgcolor = TRUE;
-
- rpng2_info.state = kPreInit;
- rpng2_info.mainprog_init = rpng2_win_init;
- rpng2_info.mainprog_display_row = rpng2_win_display_row;
- rpng2_info.mainprog_finish_display = rpng2_win_finish_display;
-
-
- /* OK, this is the fun part: call readpng2_decode_data() at the start of
- * the loop to deal with our first buffer of data (read in above to verify
- * that the file is a PNG image), then loop through the file and continue
- * calling the same routine to handle each chunk of data. It in turn
- * passes the data to libpng, which will invoke one or more of our call-
- * backs as decoded data become available. We optionally call Sleep() for
- * one second per iteration to simulate downloading the image via an analog
- * modem. */
-
- for (;;) {
- Trace((stderr, "about to call readpng2_decode_data()\n"))
- if (readpng2_decode_data(&rpng2_info, inbuf, incount))
- ++error;
- Trace((stderr, "done with readpng2_decode_data()\n"))
-
- if (error || incount != INBUFSIZE || rpng2_info.state == kDone) {
- if (rpng2_info.state == kDone) {
- Trace((stderr, "done decoding PNG image\n"))
- } else if (ferror(infile)) {
- fprintf(stderr, PROGNAME
- ": error while reading PNG image file\n");
- exit(3);
- } else if (feof(infile)) {
- fprintf(stderr, PROGNAME ": end of file reached "
- "(unexpectedly) while reading PNG image file\n");
- exit(3);
- } else /* if (error) */ {
- /* will print error message below */
- }
- break;
- }
-
- if (timing)
- Sleep(1000L);
-
- incount = fread(inbuf, 1, INBUFSIZE, infile);
- }
-
-
- /* clean up PNG stuff and report any decoding errors */
-
- fclose(infile);
- Trace((stderr, "about to call readpng2_cleanup()\n"))
- readpng2_cleanup(&rpng2_info);
-
- if (error) {
- fprintf(stderr, PROGNAME ": libpng error while decoding PNG image\n");
- exit(3);
- }
-
-
- /* wait for the user to tell us when to quit */
-
- while (GetMessage(&msg, NULL, 0, 0)) {
- TranslateMessage(&msg);
- DispatchMessage(&msg);
- }
-
-
- /* we're done: clean up all image and Windows resources and go away */
-
- Trace((stderr, "about to call rpng2_win_cleanup()\n"))
- rpng2_win_cleanup();
-
- return msg.wParam;
-}
-
-
-
-
-
-/* this function is called by readpng2_info_callback() in readpng2.c, which
- * in turn is called by libpng after all of the pre-IDAT chunks have been
- * read and processed--i.e., we now have enough info to finish initializing */
-
-static void rpng2_win_init()
-{
- ulg i;
- ulg rowbytes = rpng2_info.rowbytes;
-
- Trace((stderr, "beginning rpng2_win_init()\n"))
- Trace((stderr, " rowbytes = %d\n", rpng2_info.rowbytes))
- Trace((stderr, " width = %ld\n", rpng2_info.width))
- Trace((stderr, " height = %ld\n", rpng2_info.height))
-
- /* Guard against integer overflow */
- if (rpng2_info.height > ((size_t)(-1))/rowbytes) {
- fprintf(stderr, PROGNAME ": image_data buffer would be too large\n",
- readpng2_cleanup(&rpng2_info);
- return;
- }
-
- rpng2_info.image_data = (uch *)malloc(rowbytes * rpng2_info.height);
- if (!rpng2_info.image_data) {
- readpng2_cleanup(&rpng2_info);
- return;
- }
-
- rpng2_info.row_pointers = (uch **)malloc(rpng2_info.height * sizeof(uch *));
- if (!rpng2_info.row_pointers) {
- free(rpng2_info.image_data);
- rpng2_info.image_data = NULL;
- readpng2_cleanup(&rpng2_info);
- return;
- }
-
- for (i = 0; i < rpng2_info.height; ++i)
- rpng2_info.row_pointers[i] = rpng2_info.image_data + i*rowbytes;
-
-/*---------------------------------------------------------------------------
- Do the basic Windows initialization stuff, make the window, and fill it
- with the user-specified, file-specified or default background color.
- ---------------------------------------------------------------------------*/
-
- if (rpng2_win_create_window()) {
- readpng2_cleanup(&rpng2_info);
- return;
- }
-
- rpng2_info.state = kWindowInit;
-}
-
-
-
-
-
-static int rpng2_win_create_window()
-{
- uch bg_red = rpng2_info.bg_red;
- uch bg_green = rpng2_info.bg_green;
- uch bg_blue = rpng2_info.bg_blue;
- uch *dest;
- int extra_width, extra_height;
- ulg i, j;
- WNDCLASSEX wndclass;
- RECT rect;
-
-
-/*---------------------------------------------------------------------------
- Allocate memory for the display-specific version of the image (round up
- to multiple of 4 for Windows DIB).
- ---------------------------------------------------------------------------*/
-
- wimage_rowbytes = ((3*rpng2_info.width + 3L) >> 2) << 2;
-
- if (!(dib = (uch *)malloc(sizeof(BITMAPINFOHEADER) +
- wimage_rowbytes*rpng2_info.height)))
- {
- return 4; /* fail */
- }
-
-/*---------------------------------------------------------------------------
- Initialize the DIB. Negative height means to use top-down BMP ordering
- (must be uncompressed, but that's what we want). Bit count of 1, 4 or 8
- implies a colormap of RGBX quads, but 24-bit BMPs just use B,G,R values
- directly => wimage_data begins immediately after BMP header.
- ---------------------------------------------------------------------------*/
-
- memset(dib, 0, sizeof(BITMAPINFOHEADER));
- bmih = (BITMAPINFOHEADER *)dib;
- bmih->biSize = sizeof(BITMAPINFOHEADER);
- bmih->biWidth = rpng2_info.width;
- bmih->biHeight = -((long)rpng2_info.height);
- bmih->biPlanes = 1;
- bmih->biBitCount = 24;
- bmih->biCompression = 0;
- wimage_data = dib + sizeof(BITMAPINFOHEADER);
-
-/*---------------------------------------------------------------------------
- Fill window with the specified background color (default is black), but
- defer loading faked "background image" until window is displayed (may be
- slow to compute). Data are in BGR order.
- ---------------------------------------------------------------------------*/
-
- if (bg_image) { /* just fill with black for now */
- memset(wimage_data, 0, wimage_rowbytes*rpng2_info.height);
- } else {
- for (j = 0; j < rpng2_info.height; ++j) {
- dest = wimage_data + j*wimage_rowbytes;
- for (i = rpng2_info.width; i > 0; --i) {
- *dest++ = bg_blue;
- *dest++ = bg_green;
- *dest++ = bg_red;
- }
- }
- }
-
-/*---------------------------------------------------------------------------
- Set the window parameters.
- ---------------------------------------------------------------------------*/
-
- memset(&wndclass, 0, sizeof(wndclass));
-
- wndclass.cbSize = sizeof(wndclass);
- wndclass.style = CS_HREDRAW | CS_VREDRAW;
- wndclass.lpfnWndProc = rpng2_win_wndproc;
- wndclass.hInstance = global_hInst;
- wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
- wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
- wndclass.hbrBackground = (HBRUSH)GetStockObject(DKGRAY_BRUSH);
- wndclass.lpszMenuName = NULL;
- wndclass.lpszClassName = progname;
- wndclass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
-
- RegisterClassEx(&wndclass);
-
-/*---------------------------------------------------------------------------
- Finally, create the window.
- ---------------------------------------------------------------------------*/
-
- extra_width = 2*(GetSystemMetrics(SM_CXBORDER) +
- GetSystemMetrics(SM_CXDLGFRAME));
- extra_height = 2*(GetSystemMetrics(SM_CYBORDER) +
- GetSystemMetrics(SM_CYDLGFRAME)) +
- GetSystemMetrics(SM_CYCAPTION);
-
- global_hwnd = CreateWindow(progname, titlebar, WS_OVERLAPPEDWINDOW,
- CW_USEDEFAULT, CW_USEDEFAULT, rpng2_info.width+extra_width,
- rpng2_info.height+extra_height, NULL, NULL, global_hInst, NULL);
-
- ShowWindow(global_hwnd, global_showmode);
- UpdateWindow(global_hwnd);
-
-/*---------------------------------------------------------------------------
- Now compute the background image and display it. If it fails (memory
- allocation), revert to a plain background color.
- ---------------------------------------------------------------------------*/
-
- if (bg_image) {
- static const char *msg = "Computing background image...";
- int x, y, len = strlen(msg);
- HDC hdc = GetDC(global_hwnd);
- TEXTMETRIC tm;
-
- GetTextMetrics(hdc, &tm);
- x = (rpng2_info.width - len*tm.tmAveCharWidth)/2;
- y = (rpng2_info.height - tm.tmHeight)/2;
- SetBkMode(hdc, TRANSPARENT);
- SetTextColor(hdc, GetSysColor(COLOR_HIGHLIGHTTEXT));
- /* this can still begin out of bounds even if x is positive (???): */
- TextOut(hdc, ((x < 0)? 0 : x), ((y < 0)? 0 : y), msg, len);
- ReleaseDC(global_hwnd, hdc);
-
- rpng2_win_load_bg_image(); /* resets bg_image if fails */
- }
-
- if (!bg_image) {
- for (j = 0; j < rpng2_info.height; ++j) {
- dest = wimage_data + j*wimage_rowbytes;
- for (i = rpng2_info.width; i > 0; --i) {
- *dest++ = bg_blue;
- *dest++ = bg_green;
- *dest++ = bg_red;
- }
- }
- }
-
- rect.left = 0L;
- rect.top = 0L;
- rect.right = (LONG)rpng2_info.width; /* possibly off by one? */
- rect.bottom = (LONG)rpng2_info.height; /* possibly off by one? */
- InvalidateRect(global_hwnd, &rect, FALSE);
- UpdateWindow(global_hwnd); /* similar to XFlush() */
-
- return 0;
-
-} /* end function rpng2_win_create_window() */
-
-
-
-
-
-static int rpng2_win_load_bg_image()
-{
- uch *src, *dest;
- uch r1, r2, g1, g2, b1, b2;
- uch r1_inv, r2_inv, g1_inv, g2_inv, b1_inv, b2_inv;
- int k, hmax, max;
- int xidx, yidx, yidx_max = (bgscale-1);
- int even_odd_vert, even_odd_horiz, even_odd;
- int invert_gradient2 = (bg[pat].type & 0x08);
- int invert_column;
- ulg i, row;
-
-/*---------------------------------------------------------------------------
- Allocate buffer for fake background image to be used with transparent
- images; if this fails, revert to plain background color.
- ---------------------------------------------------------------------------*/
-
- bg_rowbytes = 3 * rpng2_info.width;
- bg_data = (uch *)malloc(bg_rowbytes * rpng2_info.height);
- if (!bg_data) {
- fprintf(stderr, PROGNAME
- ": unable to allocate memory for background image\n");
- bg_image = 0;
- return 1;
- }
-
-/*---------------------------------------------------------------------------
- Vertical gradients (ramps) in NxN squares, alternating direction and
- colors (N == bgscale).
- ---------------------------------------------------------------------------*/
-
- if ((bg[pat].type & 0x07) == 0) {
- uch r1_min = rgb[bg[pat].rgb1_min].r;
- uch g1_min = rgb[bg[pat].rgb1_min].g;
- uch b1_min = rgb[bg[pat].rgb1_min].b;
- uch r2_min = rgb[bg[pat].rgb2_min].r;
- uch g2_min = rgb[bg[pat].rgb2_min].g;
- uch b2_min = rgb[bg[pat].rgb2_min].b;
- int r1_diff = rgb[bg[pat].rgb1_max].r - r1_min;
- int g1_diff = rgb[bg[pat].rgb1_max].g - g1_min;
- int b1_diff = rgb[bg[pat].rgb1_max].b - b1_min;
- int r2_diff = rgb[bg[pat].rgb2_max].r - r2_min;
- int g2_diff = rgb[bg[pat].rgb2_max].g - g2_min;
- int b2_diff = rgb[bg[pat].rgb2_max].b - b2_min;
-
- for (row = 0; row < rpng2_info.height; ++row) {
- yidx = row % bgscale;
- even_odd_vert = (row / bgscale) & 1;
-
- r1 = r1_min + (r1_diff * yidx) / yidx_max;
- g1 = g1_min + (g1_diff * yidx) / yidx_max;
- b1 = b1_min + (b1_diff * yidx) / yidx_max;
- r1_inv = r1_min + (r1_diff * (yidx_max-yidx)) / yidx_max;
- g1_inv = g1_min + (g1_diff * (yidx_max-yidx)) / yidx_max;
- b1_inv = b1_min + (b1_diff * (yidx_max-yidx)) / yidx_max;
-
- r2 = r2_min + (r2_diff * yidx) / yidx_max;
- g2 = g2_min + (g2_diff * yidx) / yidx_max;
- b2 = b2_min + (b2_diff * yidx) / yidx_max;
- r2_inv = r2_min + (r2_diff * (yidx_max-yidx)) / yidx_max;
- g2_inv = g2_min + (g2_diff * (yidx_max-yidx)) / yidx_max;
- b2_inv = b2_min + (b2_diff * (yidx_max-yidx)) / yidx_max;
-
- dest = bg_data + row*bg_rowbytes;
- for (i = 0; i < rpng2_info.width; ++i) {
- even_odd_horiz = (i / bgscale) & 1;
- even_odd = even_odd_vert ^ even_odd_horiz;
- invert_column =
- (even_odd_horiz && (bg[pat].type & 0x10));
- if (even_odd == 0) { /* gradient #1 */
- if (invert_column) {
- *dest++ = r1_inv;
- *dest++ = g1_inv;
- *dest++ = b1_inv;
- } else {
- *dest++ = r1;
- *dest++ = g1;
- *dest++ = b1;
- }
- } else { /* gradient #2 */
- if ((invert_column && invert_gradient2) ||
- (!invert_column && !invert_gradient2))
- {
- *dest++ = r2; /* not inverted or */
- *dest++ = g2; /* doubly inverted */
- *dest++ = b2;
- } else {
- *dest++ = r2_inv;
- *dest++ = g2_inv; /* singly inverted */
- *dest++ = b2_inv;
- }
- }
- }
- }
-
-/*---------------------------------------------------------------------------
- Soft gradient-diamonds with scale = bgscale. Code contributed by Adam
- M. Costello.
- ---------------------------------------------------------------------------*/
-
- } else if ((bg[pat].type & 0x07) == 1) {
-
- hmax = (bgscale-1)/2; /* half the max weight of a color */
- max = 2*hmax; /* the max weight of a color */
-
- r1 = rgb[bg[pat].rgb1_max].r;
- g1 = rgb[bg[pat].rgb1_max].g;
- b1 = rgb[bg[pat].rgb1_max].b;
- r2 = rgb[bg[pat].rgb2_max].r;
- g2 = rgb[bg[pat].rgb2_max].g;
- b2 = rgb[bg[pat].rgb2_max].b;
-
- for (row = 0; row < rpng2_info.height; ++row) {
- yidx = row % bgscale;
- if (yidx > hmax)
- yidx = bgscale-1 - yidx;
- dest = bg_data + row*bg_rowbytes;
- for (i = 0; i < rpng2_info.width; ++i) {
- xidx = i % bgscale;
- if (xidx > hmax)
- xidx = bgscale-1 - xidx;
- k = xidx + yidx;
- *dest++ = (k*r1 + (max-k)*r2) / max;
- *dest++ = (k*g1 + (max-k)*g2) / max;
- *dest++ = (k*b1 + (max-k)*b2) / max;
- }
- }
-
-/*---------------------------------------------------------------------------
- Radial "starburst" with azimuthal sinusoids; [eventually number of sinu-
- soids will equal bgscale?]. This one is slow but very cool. Code con-
- tributed by Pieter S. van der Meulen (originally in Smalltalk).
- ---------------------------------------------------------------------------*/
-
- } else if ((bg[pat].type & 0x07) == 2) {
- uch ch;
- int ii, x, y, hw, hh, grayspot;
- double freq, rotate, saturate, gray, intensity;
- double angle=0.0, aoffset=0.0, maxDist, dist;
- double red=0.0, green=0.0, blue=0.0, hue, s, v, f, p, q, t;
-
- fprintf(stderr, "%s: computing radial background...",
- PROGNAME);
- fflush(stderr);
-
- hh = rpng2_info.height / 2;
- hw = rpng2_info.width / 2;
-
- /* variables for radial waves:
- * aoffset: number of degrees to rotate hue [CURRENTLY NOT USED]
- * freq: number of color beams originating from the center
- * grayspot: size of the graying center area (anti-alias)
- * rotate: rotation of the beams as a function of radius
- * saturate: saturation of beams' shape azimuthally
- */
- angle = CLIP(angle, 0.0, 360.0);
- grayspot = CLIP(bg[pat].bg_gray, 1, (hh + hw));
- freq = MAX((double)bg[pat].bg_freq, 0.0);
- saturate = (double)bg[pat].bg_bsat * 0.1;
- rotate = (double)bg[pat].bg_brot * 0.1;
- gray = 0.0;
- intensity = 0.0;
- maxDist = (double)((hw*hw) + (hh*hh));
-
- for (row = 0; row < rpng2_info.height; ++row) {
- y = row - hh;
- dest = bg_data + row*bg_rowbytes;
- for (i = 0; i < rpng2_info.width; ++i) {
- x = i - hw;
- angle = (x == 0)? PI_2 : atan((double)y / (double)x);
- gray = (double)MAX(ABS(y), ABS(x)) / grayspot;
- gray = MIN(1.0, gray);
- dist = (double)((x*x) + (y*y)) / maxDist;
- intensity = cos((angle+(rotate*dist*PI)) * freq) *
- gray * saturate;
- intensity = (MAX(MIN(intensity,1.0),-1.0) + 1.0) * 0.5;
- hue = (angle + PI) * INV_PI_360 + aoffset;
- s = gray * ((double)(ABS(x)+ABS(y)) / (double)(hw + hh));
- s = MIN(MAX(s,0.0), 1.0);
- v = MIN(MAX(intensity,0.0), 1.0);
-
- if (s == 0.0) {
- ch = (uch)(v * 255.0);
- *dest++ = ch;
- *dest++ = ch;
- *dest++ = ch;
- } else {
- if ((hue < 0.0) || (hue >= 360.0))
- hue -= (((int)(hue / 360.0)) * 360.0);
- hue /= 60.0;
- ii = (int)hue;
- f = hue - (double)ii;
- p = (1.0 - s) * v;
- q = (1.0 - (s * f)) * v;
- t = (1.0 - (s * (1.0 - f))) * v;
- if (ii == 0) { red = v; green = t; blue = p; }
- else if (ii == 1) { red = q; green = v; blue = p; }
- else if (ii == 2) { red = p; green = v; blue = t; }
- else if (ii == 3) { red = p; green = q; blue = v; }
- else if (ii == 4) { red = t; green = p; blue = v; }
- else if (ii == 5) { red = v; green = p; blue = q; }
- *dest++ = (uch)(red * 255.0);
- *dest++ = (uch)(green * 255.0);
- *dest++ = (uch)(blue * 255.0);
- }
- }
- }
- fprintf(stderr, "done.\n");
- fflush(stderr);
- }
-
-/*---------------------------------------------------------------------------
- Blast background image to display buffer before beginning PNG decode;
- calling function will handle invalidation and UpdateWindow() call.
- ---------------------------------------------------------------------------*/
-
- for (row = 0; row < rpng2_info.height; ++row) {
- src = bg_data + row*bg_rowbytes;
- dest = wimage_data + row*wimage_rowbytes;
- for (i = rpng2_info.width; i > 0; --i) {
- r1 = *src++;
- g1 = *src++;
- b1 = *src++;
- *dest++ = b1;
- *dest++ = g1; /* note reverse order */
- *dest++ = r1;
- }
- }
-
- return 0;
-
-} /* end function rpng2_win_load_bg_image() */
-
-
-
-
-
-static void rpng2_win_display_row(ulg row)
-{
- uch bg_red = rpng2_info.bg_red;
- uch bg_green = rpng2_info.bg_green;
- uch bg_blue = rpng2_info.bg_blue;
- uch *src, *src2=NULL, *dest;
- uch r, g, b, a;
- ulg i;
- static int rows=0;
- static ulg firstrow;
-
-/*---------------------------------------------------------------------------
- rows and firstrow simply track how many rows (and which ones) have not
- yet been displayed; alternatively, we could call InvalidateRect() for
- every row and not bother with the records-keeping.
- ---------------------------------------------------------------------------*/
-
- Trace((stderr, "beginning rpng2_win_display_row()\n"))
-
- if (rows == 0)
- firstrow = row; /* first row not yet displayed */
-
- ++rows; /* count of rows received but not yet displayed */
-
-/*---------------------------------------------------------------------------
- Aside from the use of the rpng2_info struct and the lack of an outer
- loop (over rows), this routine is identical to rpng_win_display_image()
- in the non-progressive version of the program.
- ---------------------------------------------------------------------------*/
-
- src = rpng2_info.image_data + row*rpng2_info.rowbytes;
- if (bg_image)
- src2 = bg_data + row*bg_rowbytes;
- dest = wimage_data + row*wimage_rowbytes;
-
- if (rpng2_info.channels == 3) {
- for (i = rpng2_info.width; i > 0; --i) {
- r = *src++;
- g = *src++;
- b = *src++;
- *dest++ = b;
- *dest++ = g; /* note reverse order */
- *dest++ = r;
- }
- } else /* if (rpng2_info.channels == 4) */ {
- for (i = rpng2_info.width; i > 0; --i) {
- r = *src++;
- g = *src++;
- b = *src++;
- a = *src++;
- if (bg_image) {
- bg_red = *src2++;
- bg_green = *src2++;
- bg_blue = *src2++;
- }
- if (a == 255) {
- *dest++ = b;
- *dest++ = g;
- *dest++ = r;
- } else if (a == 0) {
- *dest++ = bg_blue;
- *dest++ = bg_green;
- *dest++ = bg_red;
- } else {
- /* this macro (copied from png.h) composites the
- * foreground and background values and puts the
- * result into the first argument; there are no
- * side effects with the first argument */
- alpha_composite(*dest++, b, a, bg_blue);
- alpha_composite(*dest++, g, a, bg_green);
- alpha_composite(*dest++, r, a, bg_red);
- }
- }
- }
-
-/*---------------------------------------------------------------------------
- Display after every 16 rows or when on last row. (Region may include
- previously displayed lines due to interlacing--i.e., not contiguous.)
- ---------------------------------------------------------------------------*/
-
- if ((rows & 0xf) == 0 || row == rpng2_info.height-1) {
- RECT rect;
-
- rect.left = 0L;
- rect.top = (LONG)firstrow;
- rect.right = (LONG)rpng2_info.width; /* possibly off by one? */
- rect.bottom = (LONG)row + 1L; /* possibly off by one? */
- InvalidateRect(global_hwnd, &rect, FALSE);
- UpdateWindow(global_hwnd); /* similar to XFlush() */
- rows = 0;
- }
-
-} /* end function rpng2_win_display_row() */
-
-
-
-
-
-static void rpng2_win_finish_display()
-{
- Trace((stderr, "beginning rpng2_win_finish_display()\n"))
-
- /* last row has already been displayed by rpng2_win_display_row(), so
- * we have nothing to do here except set a flag and let the user know
- * that the image is done */
-
- rpng2_info.state = kDone;
- printf(
-#ifndef __CYGWIN__
- "Done. Press Q, Esc or mouse button 1 (within image window) to quit.\n"
-#else
- "Done. Press mouse button 1 (within image window) to quit.\n"
-#endif
- );
- fflush(stdout);
-}
-
-
-
-
-
-static void rpng2_win_cleanup()
-{
- if (bg_image && bg_data) {
- free(bg_data);
- bg_data = NULL;
- }
-
- if (rpng2_info.image_data) {
- free(rpng2_info.image_data);
- rpng2_info.image_data = NULL;
- }
-
- if (rpng2_info.row_pointers) {
- free(rpng2_info.row_pointers);
- rpng2_info.row_pointers = NULL;
- }
-
- if (dib) {
- free(dib);
- dib = NULL;
- }
-}
-
-
-
-
-
-LRESULT CALLBACK rpng2_win_wndproc(HWND hwnd, UINT iMsg, WPARAM wP, LPARAM lP)
-{
- HDC hdc;
- PAINTSTRUCT ps;
- int rc;
-
- switch (iMsg) {
- case WM_CREATE:
- /* one-time processing here, if any */
- return 0;
-
- case WM_PAINT:
- hdc = BeginPaint(hwnd, &ps);
- rc = StretchDIBits(hdc, 0, 0, rpng2_info.width, rpng2_info.height,
- 0, 0, rpng2_info.width, rpng2_info.height,
- wimage_data, (BITMAPINFO *)bmih,
- 0, SRCCOPY);
- EndPaint(hwnd, &ps);
- return 0;
-
- /* wait for the user to tell us when to quit */
- case WM_CHAR:
- switch (wP) { /* only need one, so ignore repeat count */
- case 'q':
- case 'Q':
- case 0x1B: /* Esc key */
- PostQuitMessage(0);
- }
- return 0;
-
- case WM_LBUTTONDOWN: /* another way of quitting */
- case WM_DESTROY:
- PostQuitMessage(0);
- return 0;
- }
-
- return DefWindowProc(hwnd, iMsg, wP, lP);
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/rpng2-x.c b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/rpng2-x.c
deleted file mode 100644
index af944c0..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/rpng2-x.c
+++ /dev/null
@@ -1,2143 +0,0 @@
-/*---------------------------------------------------------------------------
-
- rpng2 - progressive-model PNG display program rpng2-x.c
-
- This program decodes and displays PNG files progressively, as if it were
- a web browser (though the front end is only set up to read from files).
- It supports gamma correction, user-specified background colors, and user-
- specified background patterns (for transparent images). This version is
- for the X Window System (tested by the author under Unix and by Martin
- Zinser under OpenVMS; may work under OS/2 with a little tweaking).
-
- Thanks to Adam Costello and Pieter S. van der Meulen for the "diamond"
- and "radial waves" patterns, respectively.
-
- to do (someday, maybe):
- - fix expose/redraw code: don't draw entire row if only part exposed
- - 8-bit (colormapped) X support
- - finish resizable checkerboard-gradient (sizes 4-128?)
- - use %.1023s to simplify truncation of title-bar string?
-
- ---------------------------------------------------------------------------
-
- Changelog:
- - 1.01: initial public release
- - 1.02: modified to allow abbreviated options; fixed char/uchar mismatch
- - 1.10: added support for non-default visuals; fixed X pixel-conversion
- - 1.11: added -usleep option for demos; fixed command-line parsing bug
- - 1.12: added -pause option for demos and testing
- - 1.20: added runtime MMX-enabling/disabling and new -mmx* options
- - 1.21: fixed some small X memory leaks (thanks to Fran�ois Petitjean)
- - 1.22: fixed XFreeGC() crash bug (thanks to Patrick Welche)
- - 1.23: added -bgpat 0 mode (std white/gray checkerboard, 8x8 squares)
- - 1.30: added -loop option for -bgpat (ifdef FEATURE_LOOP); fixed bpp =
- 24; added support for X resources (thanks to Gerhard Niklasch)
- - 1.31: added code to skip unused chunks (thanks to Glenn Randers-Pehrson)
- - 1.32: added AMD64/EM64T support (__x86_64__); added basic expose/redraw
- handling
- - 2.00: dual-licensed (added GNU GPL)
- - 2.01: fixed 64-bit typo in readpng2.c; fixed -pause usage description
- - 2.02: fixed improper display of usage screen on PNG error(s); fixed
- unexpected-EOF and file-read-error cases; fixed Trace() cut-and-
- paste bugs
- - 2.03: deleted runtime MMX-enabling/disabling and obsolete -mmx* options
- - 2.04: Added "void(foo);" statements to quiet pedantic compiler warnings
- about unused variables (GR-P)
- - 2.05: Use nanosleep() instead of usleep(), which is deprecated (GR-P).
- - 2.06: check for integer overflow (Glenn R-P)
- ---------------------------------------------------------------------------
-
- Copyright (c) 1998-2010, 2014-2015, 2017 Greg Roelofs. All rights
- reserved.
-
- This software is provided "as is," without warranty of any kind,
- express or implied. In no event shall the author or contributors
- be held liable for any damages arising in any way from the use of
- this software.
-
- The contents of this file are DUAL-LICENSED. You may modify and/or
- redistribute this software according to the terms of one of the
- following two licenses (at your option):
-
-
- LICENSE 1 ("BSD-like with advertising clause"):
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute
- it freely, subject to the following restrictions:
-
- 1. Redistributions of source code must retain the above copyright
- notice, disclaimer, and this list of conditions.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, disclaimer, and this list of conditions in the documenta-
- tion and/or other materials provided with the distribution.
- 3. All advertising materials mentioning features or use of this
- software must display the following acknowledgment:
-
- This product includes software developed by Greg Roelofs
- and contributors for the book, "PNG: The Definitive Guide,"
- published by O'Reilly and Associates.
-
-
- LICENSE 2 (GNU GPL v2 or later):
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- ---------------------------------------------------------------------------*/
-
-#define PROGNAME "rpng2-x"
-#define LONGNAME "Progressive PNG Viewer for X"
-#define VERSION "2.04 of 15 June 2014"
-#define RESNAME "rpng2" /* our X resource application name */
-#define RESCLASS "Rpng" /* our X resource class name */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <string.h>
-#include <setjmp.h> /* for jmpbuf declaration in readpng2.h */
-#include <time.h>
-#include <math.h> /* only for PvdM background code */
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/Xos.h>
-#include <X11/keysym.h> /* defines XK_* macros */
-
-#if _POSIX_C_SOURCE >= 199309L /* have nanosleep() */
-# undef usleep
-# define usleep(usec) { \
- struct timespec ts; \
- ts.tv_sec = 0; \
- ts.tv_nsec = (usec) * 1000; \
- nanosleep(&ts, NULL); }
-# endif
-
-#ifndef usleep /* have neither nanosleep() nor usleep() */
-# define usleep(x) sleep(((x)+499999)/1000000)
-#endif
-
-#ifdef VMS
-# include <unistd.h>
-#endif
-
-/* all for PvdM background code: */
-#ifndef PI
-# define PI 3.141592653589793238
-#endif
-#define PI_2 (PI*0.5)
-#define INV_PI_360 (360.0 / PI)
-#define MAX(a,b) (a>b?a:b)
-#define MIN(a,b) (a<b?a:b)
-#define CLIP(a,min,max) MAX(min,MIN((a),max))
-#define ABS(a) ((a)<0?-(a):(a))
-#define CLIP8P(c) MAX(0,(MIN((c),255))) /* 8-bit pos. integer (uch) */
-#define ROUNDF(f) ((int)(f + 0.5))
-
-#define QUIT(e,k) ((e.type == ButtonPress && e.xbutton.button == Button1) || \
- (e.type == KeyPress && /* v--- or 1 for shifted keys */ \
- ((k = XLookupKeysym(&e.xkey, 0)) == XK_q || k == XK_Escape)))
-
-#define NO_24BIT_MASKS /* undef case not fully written--only for redisplay() */
-
-#define rgb1_max bg_freq
-#define rgb1_min bg_gray
-#define rgb2_max bg_bsat
-#define rgb2_min bg_brot
-
-/* #define DEBUG */ /* this enables the Trace() macros */
-
-#include "readpng2.h" /* typedefs, common macros, readpng2 prototypes */
-
-
-/* could just include png.h, but this macro is the only thing we need
- * (name and typedefs changed to local versions); note that side effects
- * only happen with alpha (which could easily be avoided with
- * "ush acopy = (alpha);") */
-
-#define alpha_composite(composite, fg, alpha, bg) { \
- ush temp = ((ush)(fg)*(ush)(alpha) + \
- (ush)(bg)*(ush)(255 - (ush)(alpha)) + (ush)128); \
- (composite) = (uch)((temp + (temp >> 8)) >> 8); \
-}
-
-
-#define INBUFSIZE 4096 /* with pseudo-timing on (1 sec delay/block), this
- * block size corresponds roughly to a download
- * speed 10% faster than theoretical 33.6K maximum
- * (assuming 8 data bits, 1 stop bit and no other
- * overhead) */
-
-/* local prototypes */
-static void rpng2_x_init (void);
-static int rpng2_x_create_window (void);
-static int rpng2_x_load_bg_image (void);
-static void rpng2_x_display_row (ulg row);
-static void rpng2_x_finish_display (void);
-static void rpng2_x_redisplay_image (ulg startcol, ulg startrow,
- ulg width, ulg height);
-#ifdef FEATURE_LOOP
-static void rpng2_x_reload_bg_image (void);
-static int is_number (char *p);
-#endif
-static void rpng2_x_cleanup (void);
-static int rpng2_x_msb (ulg u32val);
-
-
-static char titlebar[1024], *window_name = titlebar;
-static char *appname = LONGNAME;
-static char *icon_name = PROGNAME;
-static char *res_name = RESNAME;
-static char *res_class = RESCLASS;
-static char *filename;
-static FILE *infile;
-
-static mainprog_info rpng2_info;
-
-static uch inbuf[INBUFSIZE];
-static int incount;
-
-static int pat = 6; /* must be less than num_bgpat */
-static int bg_image = 0;
-static int bgscale, bgscale_default = 16;
-static ulg bg_rowbytes;
-static uch *bg_data;
-
-int pause_after_pass = FALSE;
-int demo_timing = FALSE;
-ulg usleep_duration = 0L;
-
-static struct rgb_color {
- uch r, g, b;
-} rgb[] = {
- { 0, 0, 0}, /* 0: black */
- {255, 255, 255}, /* 1: white */
- {173, 132, 57}, /* 2: tan */
- { 64, 132, 0}, /* 3: medium green */
- {189, 117, 1}, /* 4: gold */
- {253, 249, 1}, /* 5: yellow */
- { 0, 0, 255}, /* 6: blue */
- { 0, 0, 120}, /* 7: medium blue */
- {255, 0, 255}, /* 8: magenta */
- { 64, 0, 64}, /* 9: dark magenta */
- {255, 0, 0}, /* 10: red */
- { 64, 0, 0}, /* 11: dark red */
- {255, 127, 0}, /* 12: orange */
- {192, 96, 0}, /* 13: darker orange */
- { 24, 60, 0}, /* 14: dark green-yellow */
- { 85, 125, 200}, /* 15: ice blue */
- {192, 192, 192} /* 16: Netscape/Mosaic gray */
-};
-/* not used for now, but should be for error-checking:
-static int num_rgb = sizeof(rgb) / sizeof(struct rgb_color);
- */
-
-/*
- This whole struct is a fairly cheesy way to keep the number of
- command-line options to a minimum. The radial-waves background
- type is a particularly poor fit to the integer elements of the
- struct...but a few macros and a little fixed-point math will do
- wonders for ya.
-
- type bits:
- F E D C B A 9 8 7 6 5 4 3 2 1 0
- | | | | |
- | | +-+-+-- 0 = sharp-edged checkerboard
- | | 1 = soft diamonds
- | | 2 = radial waves
- | | 3-7 = undefined
- | +-- gradient #2 inverted?
- +-- alternating columns inverted?
- */
-static struct background_pattern {
- ush type;
- int rgb1_max, rgb1_min; /* or bg_freq, bg_gray */
- int rgb2_max, rgb2_min; /* or bg_bsat, bg_brot (both scaled by 10)*/
-} bg[] = {
- {0, 1,1, 16,16}, /* checkered: white vs. light gray (basic) */
- {0+8, 2,0, 1,15}, /* checkered: tan/black vs. white/ice blue */
- {0+24, 2,0, 1,0}, /* checkered: tan/black vs. white/black */
- {0+8, 4,5, 0,2}, /* checkered: gold/yellow vs. black/tan */
- {0+8, 4,5, 0,6}, /* checkered: gold/yellow vs. black/blue */
- {0, 7,0, 8,9}, /* checkered: deep blue/black vs. magenta */
- {0+8, 13,0, 5,14}, /* checkered: orange/black vs. yellow */
- {0+8, 12,0, 10,11}, /* checkered: orange/black vs. red */
- {1, 7,0, 8,0}, /* diamonds: deep blue/black vs. magenta */
- {1, 12,0, 11,0}, /* diamonds: orange vs. dark red */
- {1, 10,0, 7,0}, /* diamonds: red vs. medium blue */
- {1, 4,0, 5,0}, /* diamonds: gold vs. yellow */
- {1, 3,0, 0,0}, /* diamonds: medium green vs. black */
- {2, 16, 100, 20, 0}, /* radial: ~hard radial color-beams */
- {2, 18, 100, 10, 2}, /* radial: soft, curved radial color-beams */
- {2, 16, 256, 100, 250}, /* radial: very tight spiral */
- {2, 10000, 256, 11, 0} /* radial: dipole-moire' (almost fractal) */
-};
-static int num_bgpat = sizeof(bg) / sizeof(struct background_pattern);
-
-
-/* X-specific variables */
-static char *displayname;
-static XImage *ximage;
-static Display *display;
-static int depth;
-static Visual *visual;
-static XVisualInfo *visual_list;
-static int RShift, GShift, BShift;
-static ulg RMask, GMask, BMask;
-static Window window;
-static GC gc;
-static Colormap colormap;
-
-static int have_nondefault_visual = FALSE;
-static int have_colormap = FALSE;
-static int have_window = FALSE;
-static int have_gc = FALSE;
-
-
-
-
-int main(int argc, char **argv)
-{
-#ifdef sgi
- char tmpline[80];
-#endif
- char *p, *bgstr = NULL;
- int rc, alen, flen;
- int error = 0;
- int timing = FALSE;
- int have_bg = FALSE;
-#ifdef FEATURE_LOOP
- int loop = FALSE;
- long loop_interval = -1; /* seconds (100,000 max) */
-#endif
- double LUT_exponent; /* just the lookup table */
- double CRT_exponent = 2.2; /* just the monitor */
- double default_display_exponent; /* whole display system */
- XEvent e;
- KeySym k;
-
-
- /* First initialize a few things, just to be sure--memset takes care of
- * default background color (black), booleans (FALSE), pointers (NULL),
- * etc. */
-
- displayname = (char *)NULL;
- filename = (char *)NULL;
- memset(&rpng2_info, 0, sizeof(mainprog_info));
-
-
- /* Set the default value for our display-system exponent, i.e., the
- * product of the CRT exponent and the exponent corresponding to
- * the frame-buffer's lookup table (LUT), if any. This is not an
- * exhaustive list of LUT values (e.g., OpenStep has a lot of weird
- * ones), but it should cover 99% of the current possibilities. */
-
-#if defined(NeXT)
- /* third-party utilities can modify the default LUT exponent */
- LUT_exponent = 1.0 / 2.2;
- /*
- if (some_next_function_that_returns_gamma(&next_gamma))
- LUT_exponent = 1.0 / next_gamma;
- */
-#elif defined(sgi)
- LUT_exponent = 1.0 / 1.7;
- /* there doesn't seem to be any documented function to
- * get the "gamma" value, so we do it the hard way */
- infile = fopen("/etc/config/system.glGammaVal", "r");
- if (infile) {
- double sgi_gamma;
-
- fgets(tmpline, 80, infile);
- fclose(infile);
- sgi_gamma = atof(tmpline);
- if (sgi_gamma > 0.0)
- LUT_exponent = 1.0 / sgi_gamma;
- }
-#elif defined(Macintosh)
- LUT_exponent = 1.8 / 2.61;
- /*
- if (some_mac_function_that_returns_gamma(&mac_gamma))
- LUT_exponent = mac_gamma / 2.61;
- */
-#else
- LUT_exponent = 1.0; /* assume no LUT: most PCs */
-#endif
-
- /* the defaults above give 1.0, 1.3, 1.5 and 2.2, respectively: */
- default_display_exponent = LUT_exponent * CRT_exponent;
-
-
- /* If the user has set the SCREEN_GAMMA environment variable as suggested
- * (somewhat imprecisely) in the libpng documentation, use that; otherwise
- * use the default value we just calculated. Either way, the user may
- * override this via a command-line option. */
-
- if ((p = getenv("SCREEN_GAMMA")) != NULL)
- rpng2_info.display_exponent = atof(p);
- else
- rpng2_info.display_exponent = default_display_exponent;
-
-
- /* Now parse the command line for options and the PNG filename. */
-
- while (*++argv && !error) {
- if (!strncmp(*argv, "-display", 2)) {
- if (!*++argv)
- ++error;
- else
- displayname = *argv;
- } else if (!strncmp(*argv, "-gamma", 2)) {
- if (!*++argv)
- ++error;
- else {
- rpng2_info.display_exponent = atof(*argv);
- if (rpng2_info.display_exponent <= 0.0)
- ++error;
- }
- } else if (!strncmp(*argv, "-bgcolor", 4)) {
- if (!*++argv)
- ++error;
- else {
- bgstr = *argv;
- if (strlen(bgstr) != 7 || bgstr[0] != '#')
- ++error;
- else {
- have_bg = TRUE;
- bg_image = FALSE;
- }
- }
- } else if (!strncmp(*argv, "-bgpat", 4)) {
- if (!*++argv)
- ++error;
- else {
- pat = atoi(*argv);
- if (pat >= 0 && pat < num_bgpat) {
- bg_image = TRUE;
- have_bg = FALSE;
- } else
- ++error;
- }
- } else if (!strncmp(*argv, "-usleep", 2)) {
- if (!*++argv)
- ++error;
- else {
- usleep_duration = (ulg)atol(*argv);
- demo_timing = TRUE;
- }
- } else if (!strncmp(*argv, "-pause", 2)) {
- pause_after_pass = TRUE;
- } else if (!strncmp(*argv, "-timing", 2)) {
- timing = TRUE;
-#ifdef FEATURE_LOOP
- } else if (!strncmp(*argv, "-loop", 2)) {
- loop = TRUE;
- if (!argv[1] || !is_number(argv[1]))
- loop_interval = 2;
- else {
- ++argv;
- loop_interval = atol(*argv);
- if (loop_interval < 0)
- loop_interval = 2;
- else if (loop_interval > 100000) /* bit more than one day */
- loop_interval = 100000;
- }
-#endif
- } else {
- if (**argv != '-') {
- filename = *argv;
- if (argv[1]) /* shouldn't be any more args after filename */
- ++error;
- } else
- ++error; /* not expecting any other options */
- }
- }
-
- if (!filename)
- ++error;
-
-
- /* print usage screen if any errors up to this point */
-
- if (error) {
- fprintf(stderr, "\n%s %s: %s\n\n", PROGNAME, VERSION, appname);
- readpng2_version_info();
- fprintf(stderr, "\n"
- "Usage: ");
- fprintf(stderr,
- "%s [-display xdpy] [-gamma exp] [-bgcolor bg | -bgpat pat]\n"
- " %*s [-usleep dur | -timing] [-pause]\n",
- PROGNAME, (int)strlen(PROGNAME), " ");
- fprintf(stderr,
-#ifdef FEATURE_LOOP
- " [-loop [sec]]"
-#endif
- " file.png\n\n");
- fprintf(stderr,
- " xdpy\tname of the target X display (e.g., ``hostname:0'')\n"
- " exp \ttransfer-function exponent (``gamma'') of the display\n"
- "\t\t system in floating-point format (e.g., ``%.1f''); equal\n"
- "\t\t to the product of the lookup-table exponent (varies)\n",
- default_display_exponent);
- fprintf(stderr,
- "\t\t and the CRT exponent (usually 2.2); must be positive\n"
- " bg \tdesired background color in 7-character hex RGB format\n"
- "\t\t (e.g., ``#ff7700'' for orange: same as HTML colors);\n"
- "\t\t used with transparent images; overrides -bgpat\n"
- " pat \tdesired background pattern number (0-%d); used with\n"
- "\t\t transparent images; overrides -bgcolor\n",
- num_bgpat-1);
-#ifdef FEATURE_LOOP
- fprintf(stderr,
- " -loop\tloops through background images after initial display\n"
- "\t\t is complete (depends on -bgpat)\n"
- " sec \tseconds to display each background image (default = 2)\n");
-#endif
- fprintf(stderr,
- " dur \tduration in microseconds to wait after displaying each\n"
- "\t\t row (for demo purposes)\n"
- " -timing\tenables delay for every block read, to simulate modem\n"
- "\t\t download of image (~36 Kbps)\n"
- " -pause\tpauses after displaying each pass until mouse clicked\n"
- "\nPress Q, Esc or mouse button 1 (within image window, after image\n"
- "is displayed) to quit.\n");
- exit(1);
- }
-
- if (!(infile = fopen(filename, "rb"))) {
- fprintf(stderr, PROGNAME ": can't open PNG file [%s]\n", filename);
- ++error;
- } else {
- incount = fread(inbuf, 1, INBUFSIZE, infile);
- if (incount < 8 || !readpng2_check_sig(inbuf, 8)) {
- fprintf(stderr, PROGNAME
- ": [%s] is not a PNG file: incorrect signature\n",
- filename);
- ++error;
- } else if ((rc = readpng2_init(&rpng2_info)) != 0) {
- switch (rc) {
- case 2:
- fprintf(stderr, PROGNAME
- ": [%s] has bad IHDR (libpng longjmp)\n", filename);
- break;
- case 4:
- fprintf(stderr, PROGNAME ": insufficient memory\n");
- break;
- default:
- fprintf(stderr, PROGNAME
- ": unknown readpng2_init() error\n");
- break;
- }
- ++error;
- } else {
- Trace((stderr, "about to call XOpenDisplay()\n"))
- display = XOpenDisplay(displayname);
- if (!display) {
- readpng2_cleanup(&rpng2_info);
- fprintf(stderr, PROGNAME ": can't open X display [%s]\n",
- displayname? displayname : "default");
- ++error;
- }
- }
- if (error)
- fclose(infile);
- }
-
-
- if (error) {
- fprintf(stderr, PROGNAME ": aborting.\n");
- exit(2);
- }
-
-
- /* set the title-bar string, but make sure buffer doesn't overflow */
-
- alen = strlen(appname);
- flen = strlen(filename);
- if (alen + flen + 3 > 1023)
- sprintf(titlebar, "%s: ...%s", appname, filename+(alen+flen+6-1023));
- else
- sprintf(titlebar, "%s: %s", appname, filename);
-
-
- /* set some final rpng2_info variables before entering main data loop */
-
- if (have_bg) {
- unsigned r, g, b; /* this approach quiets compiler warnings */
-
- sscanf(bgstr+1, "%2x%2x%2x", &r, &g, &b);
- rpng2_info.bg_red = (uch)r;
- rpng2_info.bg_green = (uch)g;
- rpng2_info.bg_blue = (uch)b;
- } else
- rpng2_info.need_bgcolor = TRUE;
-
- rpng2_info.state = kPreInit;
- rpng2_info.mainprog_init = rpng2_x_init;
- rpng2_info.mainprog_display_row = rpng2_x_display_row;
- rpng2_info.mainprog_finish_display = rpng2_x_finish_display;
-
-
- /* OK, this is the fun part: call readpng2_decode_data() at the start of
- * the loop to deal with our first buffer of data (read in above to verify
- * that the file is a PNG image), then loop through the file and continue
- * calling the same routine to handle each chunk of data. It in turn
- * passes the data to libpng, which will invoke one or more of our call-
- * backs as decoded data become available. We optionally call sleep() for
- * one second per iteration to simulate downloading the image via an analog
- * modem. */
-
- for (;;) {
- Trace((stderr, "about to call readpng2_decode_data()\n"))
- if (readpng2_decode_data(&rpng2_info, inbuf, incount))
- ++error;
- Trace((stderr, "done with readpng2_decode_data()\n"))
-
- if (error || incount != INBUFSIZE || rpng2_info.state == kDone) {
- if (rpng2_info.state == kDone) {
- Trace((stderr, "done decoding PNG image\n"))
- } else if (ferror(infile)) {
- fprintf(stderr, PROGNAME
- ": error while reading PNG image file\n");
- exit(3);
- } else if (feof(infile)) {
- fprintf(stderr, PROGNAME ": end of file reached "
- "(unexpectedly) while reading PNG image file\n");
- exit(3);
- } else /* if (error) */ {
- /* will print error message below */
- }
- break;
- }
-
- if (timing)
- sleep(1);
-
- incount = fread(inbuf, 1, INBUFSIZE, infile);
- }
-
-
- /* clean up PNG stuff and report any decoding errors */
-
- fclose(infile);
- Trace((stderr, "about to call readpng2_cleanup()\n"))
- readpng2_cleanup(&rpng2_info);
-
- if (error) {
- fprintf(stderr, PROGNAME ": libpng error while decoding PNG image\n");
- exit(3);
- }
-
-
-#ifdef FEATURE_LOOP
-
- if (loop && bg_image) {
- Trace((stderr, "entering -loop loop (FEATURE_LOOP)\n"))
- for (;;) {
- int i, use_sleep;
- struct timeval now, then;
-
- /* get current time and add loop_interval to get target time */
- if (gettimeofday(&then, NULL) == 0) {
- then.tv_sec += loop_interval;
- use_sleep = FALSE;
- } else
- use_sleep = TRUE;
-
- /* do quick check for a quit event but don't wait for it */
- /* GRR BUG: should also check for Expose events and redraw... */
- if (XCheckMaskEvent(display, KeyPressMask | ButtonPressMask, &e))
- if (QUIT(e,k))
- break;
-
- /* generate next background image */
- if (++pat >= num_bgpat)
- pat = 0;
- rpng2_x_reload_bg_image();
-
- /* wait for timeout, using whatever means are available */
- if (use_sleep || gettimeofday(&now, NULL) != 0) {
- for (i = loop_interval; i > 0; --i) {
- sleep(1);
- /* GRR BUG: also need to check for Expose (and redraw!) */
- if (XCheckMaskEvent(display, KeyPressMask | ButtonPressMask,
- &e) && QUIT(e,k))
- break;
- }
- } else {
- /* Y2038 BUG! */
- if (now.tv_sec < then.tv_sec ||
- (now.tv_sec == then.tv_sec && now.tv_usec < then.tv_usec))
- {
- int quit = FALSE;
- long seconds_to_go = then.tv_sec - now.tv_sec;
- long usleep_usec;
-
- /* basically chew up most of remaining loop-interval with
- * calls to sleep(1) interleaved with checks for quit
- * events, but also recalc time-to-go periodically; when
- * done, clean up any remaining time with usleep() call
- * (could also use SIGALRM, but signals are a pain...) */
- while (seconds_to_go-- > 1) {
- int seconds_done = 0;
-
- for (i = seconds_to_go; i > 0 && !quit; --i) {
- sleep(1);
- /* GRR BUG: need to check for Expose and redraw */
- if (XCheckMaskEvent(display, KeyPressMask |
- ButtonPressMask, &e) && QUIT(e,k))
- quit = TRUE;
- if (++seconds_done > 1000)
- break; /* time to redo seconds_to_go meas. */
- }
- if (quit)
- break;
-
- /* OK, more than 1000 seconds since last check:
- * correct the time-to-go measurement for drift */
- if (gettimeofday(&now, NULL) == 0) {
- if (now.tv_sec >= then.tv_sec)
- break;
- seconds_to_go = then.tv_sec - now.tv_sec;
- } else
- ++seconds_to_go; /* restore what we subtracted */
- }
- if (quit)
- break; /* breaks outer do-loop, skips redisplay */
-
- /* since difference between "now" and "then" is already
- * eaten up to within a couple of seconds, don't need to
- * worry about overflow--but might have overshot (neg.) */
- if (gettimeofday(&now, NULL) == 0) {
- usleep_usec = 1000000L*(then.tv_sec - now.tv_sec) +
- then.tv_usec - now.tv_usec;
- if (usleep_usec > 0)
- usleep((ulg)usleep_usec);
- }
- }
- }
-
- /* composite image against new background and display (note that
- * we do not take into account the time spent doing this...) */
- rpng2_x_redisplay_image (0, 0, rpng2_info.width, rpng2_info.height);
- }
-
- } else /* FALL THROUGH and do the normal thing */
-
-#endif /* FEATURE_LOOP */
-
- /* wait for the user to tell us when to quit */
-
- if (rpng2_info.state >= kWindowInit) {
- Trace((stderr, "entering final wait-for-quit-event loop\n"))
- do {
- XNextEvent(display, &e);
- if (e.type == Expose) {
- XExposeEvent *ex = (XExposeEvent *)&e;
- rpng2_x_redisplay_image (ex->x, ex->y, ex->width, ex->height);
- }
- } while (!QUIT(e,k));
- } else {
- fprintf(stderr, PROGNAME ": init callback never called: probable "
- "libpng error while decoding PNG metadata\n");
- exit(4);
- }
-
-
- /* we're done: clean up all image and X resources and go away */
-
- Trace((stderr, "about to call rpng2_x_cleanup()\n"))
- rpng2_x_cleanup();
-
- (void)argc; /* Unused */
-
- return 0;
-}
-
-
-
-
-
-/* this function is called by readpng2_info_callback() in readpng2.c, which
- * in turn is called by libpng after all of the pre-IDAT chunks have been
- * read and processed--i.e., we now have enough info to finish initializing */
-
-static void rpng2_x_init(void)
-{
- ulg i;
- ulg rowbytes = rpng2_info.rowbytes;
-
- Trace((stderr, "beginning rpng2_x_init()\n"))
- Trace((stderr, " rowbytes = %d\n", rpng2_info.rowbytes))
- Trace((stderr, " width = %ld\n", rpng2_info.width))
- Trace((stderr, " height = %ld\n", rpng2_info.height))
-
- /* Guard against integer overflow */
- if (rpng2_info.height > ((size_t)(-1))/rpng2_info.rowbytes) {
- fprintf(stderr, PROGNAME ": image_data buffer would be too large\n");
- readpng2_cleanup(&rpng2_info);
- return;
- }
-
- rpng2_info.image_data = (uch *)malloc(rowbytes * rpng2_info.height);
- if (!rpng2_info.image_data) {
- readpng2_cleanup(&rpng2_info);
- return;
- }
-
- rpng2_info.row_pointers = (uch **)malloc(rpng2_info.height * sizeof(uch *));
- if (!rpng2_info.row_pointers) {
- free(rpng2_info.image_data);
- rpng2_info.image_data = NULL;
- readpng2_cleanup(&rpng2_info);
- return;
- }
-
- for (i = 0; i < rpng2_info.height; ++i)
- rpng2_info.row_pointers[i] = rpng2_info.image_data + i*rowbytes;
-
-
- /* do the basic X initialization stuff, make the window, and fill it with
- * the user-specified, file-specified or default background color or
- * pattern */
-
- if (rpng2_x_create_window()) {
-
- /* GRR TEMPORARY HACK: this is fundamentally no different from cases
- * above; libpng should call our error handler to longjmp() back to us
- * when png_ptr goes away. If we/it segfault instead, seems like a
- * libpng bug... */
-
- /* we're here via libpng callback, so if window fails, clean and bail */
- readpng2_cleanup(&rpng2_info);
- rpng2_x_cleanup();
- exit(2);
- }
-
- rpng2_info.state = kWindowInit;
-}
-
-
-
-
-
-static int rpng2_x_create_window(void)
-{
- ulg bg_red = rpng2_info.bg_red;
- ulg bg_green = rpng2_info.bg_green;
- ulg bg_blue = rpng2_info.bg_blue;
- ulg bg_pixel = 0L;
- ulg attrmask;
- int need_colormap = FALSE;
- int screen, pad;
- uch *xdata;
- Window root;
- XEvent e;
- XGCValues gcvalues;
- XSetWindowAttributes attr;
- XTextProperty windowName, *pWindowName = &windowName;
- XTextProperty iconName, *pIconName = &iconName;
- XVisualInfo visual_info;
- XSizeHints *size_hints;
- XWMHints *wm_hints;
- XClassHint *class_hints;
-
-
- Trace((stderr, "beginning rpng2_x_create_window()\n"))
-
- screen = DefaultScreen(display);
- depth = DisplayPlanes(display, screen);
- root = RootWindow(display, screen);
-
-#ifdef DEBUG
- XSynchronize(display, True);
-#endif
-
- if (depth != 16 && depth != 24 && depth != 32) {
- int visuals_matched = 0;
-
- Trace((stderr, "default depth is %d: checking other visuals\n",
- depth))
-
- /* 24-bit first */
- visual_info.screen = screen;
- visual_info.depth = 24;
- visual_list = XGetVisualInfo(display,
- VisualScreenMask | VisualDepthMask, &visual_info, &visuals_matched);
- if (visuals_matched == 0) {
-/* GRR: add 15-, 16- and 32-bit TrueColor visuals (also DirectColor?) */
- fprintf(stderr, "default screen depth %d not supported, and no"
- " 24-bit visuals found\n", depth);
- return 2;
- }
- Trace((stderr, "XGetVisualInfo() returned %d 24-bit visuals\n",
- visuals_matched))
- visual = visual_list[0].visual;
- depth = visual_list[0].depth;
-/*
- colormap_size = visual_list[0].colormap_size;
- visual_class = visual->class;
- visualID = XVisualIDFromVisual(visual);
- */
- have_nondefault_visual = TRUE;
- need_colormap = TRUE;
- } else {
- XMatchVisualInfo(display, screen, depth, TrueColor, &visual_info);
- visual = visual_info.visual;
- }
-
- RMask = visual->red_mask;
- GMask = visual->green_mask;
- BMask = visual->blue_mask;
-
-/* GRR: add/check 8-bit support */
- if (depth == 8 || need_colormap) {
- colormap = XCreateColormap(display, root, visual, AllocNone);
- if (!colormap) {
- fprintf(stderr, "XCreateColormap() failed\n");
- return 2;
- }
- have_colormap = TRUE;
- if (depth == 8)
- bg_image = FALSE; /* gradient just wastes palette entries */
- }
- if (depth == 15 || depth == 16) {
- RShift = 15 - rpng2_x_msb(RMask); /* these are right-shifts */
- GShift = 15 - rpng2_x_msb(GMask);
- BShift = 15 - rpng2_x_msb(BMask);
- } else if (depth > 16) {
- RShift = rpng2_x_msb(RMask) - 7; /* these are left-shifts */
- GShift = rpng2_x_msb(GMask) - 7;
- BShift = rpng2_x_msb(BMask) - 7;
- }
- if (depth >= 15 && (RShift < 0 || GShift < 0 || BShift < 0)) {
- fprintf(stderr, "rpng2 internal logic error: negative X shift(s)!\n");
- return 2;
- }
-
-/*---------------------------------------------------------------------------
- Finally, create the window.
- ---------------------------------------------------------------------------*/
-
- attr.backing_store = Always;
- attr.event_mask = ExposureMask | KeyPressMask | ButtonPressMask;
- attrmask = CWBackingStore | CWEventMask;
- if (have_nondefault_visual) {
- attr.colormap = colormap;
- attr.background_pixel = 0;
- attr.border_pixel = 1;
- attrmask |= CWColormap | CWBackPixel | CWBorderPixel;
- }
-
- window = XCreateWindow(display, root, 0, 0, rpng2_info.width,
- rpng2_info.height, 0, depth, InputOutput, visual, attrmask, &attr);
-
- if (window == None) {
- fprintf(stderr, "XCreateWindow() failed\n");
- return 2;
- } else
- have_window = TRUE;
-
- if (depth == 8)
- XSetWindowColormap(display, window, colormap);
-
- if (!XStringListToTextProperty(&window_name, 1, pWindowName))
- pWindowName = NULL;
- if (!XStringListToTextProperty(&icon_name, 1, pIconName))
- pIconName = NULL;
-
- /* OK if either hints allocation fails; XSetWMProperties() allows NULLs */
-
- if ((size_hints = XAllocSizeHints()) != NULL) {
- /* window will not be resizable */
- size_hints->flags = PMinSize | PMaxSize;
- size_hints->min_width = size_hints->max_width = (int)rpng2_info.width;
- size_hints->min_height = size_hints->max_height =
- (int)rpng2_info.height;
- }
-
- if ((wm_hints = XAllocWMHints()) != NULL) {
- wm_hints->initial_state = NormalState;
- wm_hints->input = True;
- /* wm_hints->icon_pixmap = icon_pixmap; */
- wm_hints->flags = StateHint | InputHint /* | IconPixmapHint */ ;
- }
-
- if ((class_hints = XAllocClassHint()) != NULL) {
- class_hints->res_name = res_name;
- class_hints->res_class = res_class;
- }
-
- XSetWMProperties(display, window, pWindowName, pIconName, NULL, 0,
- size_hints, wm_hints, class_hints);
-
- /* various properties and hints no longer needed; free memory */
- if (pWindowName)
- XFree(pWindowName->value);
- if (pIconName)
- XFree(pIconName->value);
- if (size_hints)
- XFree(size_hints);
- if (wm_hints)
- XFree(wm_hints);
- if (class_hints)
- XFree(class_hints);
-
- XMapWindow(display, window);
-
- gc = XCreateGC(display, window, 0, &gcvalues);
- have_gc = TRUE;
-
-/*---------------------------------------------------------------------------
- Allocate memory for the X- and display-specific version of the image.
- ---------------------------------------------------------------------------*/
-
- if (depth == 24 || depth == 32) {
- xdata = (uch *)malloc(4*rpng2_info.width*rpng2_info.height);
- pad = 32;
- } else if (depth == 16) {
- xdata = (uch *)malloc(2*rpng2_info.width*rpng2_info.height);
- pad = 16;
- } else /* depth == 8 */ {
- xdata = (uch *)malloc(rpng2_info.width*rpng2_info.height);
- pad = 8;
- }
-
- if (!xdata) {
- fprintf(stderr, PROGNAME ": unable to allocate image memory\n");
- return 4;
- }
-
- ximage = XCreateImage(display, visual, depth, ZPixmap, 0,
- (char *)xdata, rpng2_info.width, rpng2_info.height, pad, 0);
-
- if (!ximage) {
- fprintf(stderr, PROGNAME ": XCreateImage() failed\n");
- free(xdata);
- return 3;
- }
-
- /* to avoid testing the byte order every pixel (or doubling the size of
- * the drawing routine with a giant if-test), we arbitrarily set the byte
- * order to MSBFirst and let Xlib worry about inverting things on little-
- * endian machines (e.g., Linux/x86, old VAXen, etc.)--this is not the
- * most efficient approach (the giant if-test would be better), but in
- * the interest of clarity, we'll take the easy way out... */
-
- ximage->byte_order = MSBFirst;
-
-/*---------------------------------------------------------------------------
- Fill window with the specified background color (default is black) or
- faked "background image" (but latter is disabled if 8-bit; gradients
- just waste palette entries).
- ---------------------------------------------------------------------------*/
-
- if (bg_image)
- rpng2_x_load_bg_image(); /* resets bg_image if fails */
-
- if (!bg_image) {
- if (depth == 24 || depth == 32) {
- bg_pixel = (bg_red << RShift) |
- (bg_green << GShift) |
- (bg_blue << BShift);
- } else if (depth == 16) {
- bg_pixel = (((bg_red << 8) >> RShift) & RMask) |
- (((bg_green << 8) >> GShift) & GMask) |
- (((bg_blue << 8) >> BShift) & BMask);
- } else /* depth == 8 */ {
-
- /* GRR: add 8-bit support */
-
- }
- XSetForeground(display, gc, bg_pixel);
- XFillRectangle(display, window, gc, 0, 0, rpng2_info.width,
- rpng2_info.height);
- }
-
-/*---------------------------------------------------------------------------
- Wait for first Expose event to do any drawing, then flush and return.
- ---------------------------------------------------------------------------*/
-
- do
- XNextEvent(display, &e);
- while (e.type != Expose || e.xexpose.count);
-
- XFlush(display);
-
- return 0;
-
-} /* end function rpng2_x_create_window() */
-
-
-
-
-
-static int rpng2_x_load_bg_image(void)
-{
- uch *src;
- char *dest;
- uch r1, r2, g1, g2, b1, b2;
- uch r1_inv, r2_inv, g1_inv, g2_inv, b1_inv, b2_inv;
- int k, hmax, max;
- int xidx, yidx, yidx_max;
- int even_odd_vert, even_odd_horiz, even_odd;
- int invert_gradient2 = (bg[pat].type & 0x08);
- int invert_column;
- int ximage_rowbytes = ximage->bytes_per_line;
- ulg i, row;
- ulg pixel;
-
-/*---------------------------------------------------------------------------
- Allocate buffer for fake background image to be used with transparent
- images; if this fails, revert to plain background color.
- ---------------------------------------------------------------------------*/
-
- bg_rowbytes = 3 * rpng2_info.width;
- bg_data = (uch *)malloc(bg_rowbytes * rpng2_info.height);
- if (!bg_data) {
- fprintf(stderr, PROGNAME
- ": unable to allocate memory for background image\n");
- bg_image = 0;
- return 1;
- }
-
- bgscale = (pat == 0)? 8 : bgscale_default;
- yidx_max = bgscale - 1;
-
-/*---------------------------------------------------------------------------
- Vertical gradients (ramps) in NxN squares, alternating direction and
- colors (N == bgscale).
- ---------------------------------------------------------------------------*/
-
- if ((bg[pat].type & 0x07) == 0) {
- uch r1_min = rgb[bg[pat].rgb1_min].r;
- uch g1_min = rgb[bg[pat].rgb1_min].g;
- uch b1_min = rgb[bg[pat].rgb1_min].b;
- uch r2_min = rgb[bg[pat].rgb2_min].r;
- uch g2_min = rgb[bg[pat].rgb2_min].g;
- uch b2_min = rgb[bg[pat].rgb2_min].b;
- int r1_diff = rgb[bg[pat].rgb1_max].r - r1_min;
- int g1_diff = rgb[bg[pat].rgb1_max].g - g1_min;
- int b1_diff = rgb[bg[pat].rgb1_max].b - b1_min;
- int r2_diff = rgb[bg[pat].rgb2_max].r - r2_min;
- int g2_diff = rgb[bg[pat].rgb2_max].g - g2_min;
- int b2_diff = rgb[bg[pat].rgb2_max].b - b2_min;
-
- for (row = 0; row < rpng2_info.height; ++row) {
- yidx = (int)(row % bgscale);
- even_odd_vert = (int)((row / bgscale) & 1);
-
- r1 = r1_min + (r1_diff * yidx) / yidx_max;
- g1 = g1_min + (g1_diff * yidx) / yidx_max;
- b1 = b1_min + (b1_diff * yidx) / yidx_max;
- r1_inv = r1_min + (r1_diff * (yidx_max-yidx)) / yidx_max;
- g1_inv = g1_min + (g1_diff * (yidx_max-yidx)) / yidx_max;
- b1_inv = b1_min + (b1_diff * (yidx_max-yidx)) / yidx_max;
-
- r2 = r2_min + (r2_diff * yidx) / yidx_max;
- g2 = g2_min + (g2_diff * yidx) / yidx_max;
- b2 = b2_min + (b2_diff * yidx) / yidx_max;
- r2_inv = r2_min + (r2_diff * (yidx_max-yidx)) / yidx_max;
- g2_inv = g2_min + (g2_diff * (yidx_max-yidx)) / yidx_max;
- b2_inv = b2_min + (b2_diff * (yidx_max-yidx)) / yidx_max;
-
- dest = (char *)bg_data + row*bg_rowbytes;
- for (i = 0; i < rpng2_info.width; ++i) {
- even_odd_horiz = (int)((i / bgscale) & 1);
- even_odd = even_odd_vert ^ even_odd_horiz;
- invert_column =
- (even_odd_horiz && (bg[pat].type & 0x10));
- if (even_odd == 0) { /* gradient #1 */
- if (invert_column) {
- *dest++ = r1_inv;
- *dest++ = g1_inv;
- *dest++ = b1_inv;
- } else {
- *dest++ = r1;
- *dest++ = g1;
- *dest++ = b1;
- }
- } else { /* gradient #2 */
- if ((invert_column && invert_gradient2) ||
- (!invert_column && !invert_gradient2))
- {
- *dest++ = r2; /* not inverted or */
- *dest++ = g2; /* doubly inverted */
- *dest++ = b2;
- } else {
- *dest++ = r2_inv;
- *dest++ = g2_inv; /* singly inverted */
- *dest++ = b2_inv;
- }
- }
- }
- }
-
-/*---------------------------------------------------------------------------
- Soft gradient-diamonds with scale = bgscale. Code contributed by Adam
- M. Costello.
- ---------------------------------------------------------------------------*/
-
- } else if ((bg[pat].type & 0x07) == 1) {
-
- hmax = (bgscale-1)/2; /* half the max weight of a color */
- max = 2*hmax; /* the max weight of a color */
-
- r1 = rgb[bg[pat].rgb1_max].r;
- g1 = rgb[bg[pat].rgb1_max].g;
- b1 = rgb[bg[pat].rgb1_max].b;
- r2 = rgb[bg[pat].rgb2_max].r;
- g2 = rgb[bg[pat].rgb2_max].g;
- b2 = rgb[bg[pat].rgb2_max].b;
-
- for (row = 0; row < rpng2_info.height; ++row) {
- yidx = (int)(row % bgscale);
- if (yidx > hmax)
- yidx = bgscale-1 - yidx;
- dest = (char *)bg_data + row*bg_rowbytes;
- for (i = 0; i < rpng2_info.width; ++i) {
- xidx = (int)(i % bgscale);
- if (xidx > hmax)
- xidx = bgscale-1 - xidx;
- k = xidx + yidx;
- *dest++ = (k*r1 + (max-k)*r2) / max;
- *dest++ = (k*g1 + (max-k)*g2) / max;
- *dest++ = (k*b1 + (max-k)*b2) / max;
- }
- }
-
-/*---------------------------------------------------------------------------
- Radial "starburst" with azimuthal sinusoids; [eventually number of sinu-
- soids will equal bgscale?]. This one is slow but very cool. Code con-
- tributed by Pieter S. van der Meulen (originally in Smalltalk).
- ---------------------------------------------------------------------------*/
-
- } else if ((bg[pat].type & 0x07) == 2) {
- uch ch;
- int ii, x, y, hw, hh, grayspot;
- double freq, rotate, saturate, gray, intensity;
- double angle=0.0, aoffset=0.0, maxDist, dist;
- double red=0.0, green=0.0, blue=0.0, hue, s, v, f, p, q, t;
-
- fprintf(stderr, "%s: computing radial background...",
- PROGNAME);
- fflush(stderr);
-
- hh = (int)(rpng2_info.height / 2);
- hw = (int)(rpng2_info.width / 2);
-
- /* variables for radial waves:
- * aoffset: number of degrees to rotate hue [CURRENTLY NOT USED]
- * freq: number of color beams originating from the center
- * grayspot: size of the graying center area (anti-alias)
- * rotate: rotation of the beams as a function of radius
- * saturate: saturation of beams' shape azimuthally
- */
- angle = CLIP(angle, 0.0, 360.0);
- grayspot = CLIP(bg[pat].bg_gray, 1, (hh + hw));
- freq = MAX((double)bg[pat].bg_freq, 0.0);
- saturate = (double)bg[pat].bg_bsat * 0.1;
- rotate = (double)bg[pat].bg_brot * 0.1;
- gray = 0.0;
- intensity = 0.0;
- maxDist = (double)((hw*hw) + (hh*hh));
-
- for (row = 0; row < rpng2_info.height; ++row) {
- y = (int)(row - hh);
- dest = (char *)bg_data + row*bg_rowbytes;
- for (i = 0; i < rpng2_info.width; ++i) {
- x = (int)(i - hw);
- angle = (x == 0)? PI_2 : atan((double)y / (double)x);
- gray = (double)MAX(ABS(y), ABS(x)) / grayspot;
- gray = MIN(1.0, gray);
- dist = (double)((x*x) + (y*y)) / maxDist;
- intensity = cos((angle+(rotate*dist*PI)) * freq) *
- gray * saturate;
- intensity = (MAX(MIN(intensity,1.0),-1.0) + 1.0) * 0.5;
- hue = (angle + PI) * INV_PI_360 + aoffset;
- s = gray * ((double)(ABS(x)+ABS(y)) / (double)(hw + hh));
- s = MIN(MAX(s,0.0), 1.0);
- v = MIN(MAX(intensity,0.0), 1.0);
-
- if (s == 0.0) {
- ch = (uch)(v * 255.0);
- *dest++ = ch;
- *dest++ = ch;
- *dest++ = ch;
- } else {
- if ((hue < 0.0) || (hue >= 360.0))
- hue -= (((int)(hue / 360.0)) * 360.0);
- hue /= 60.0;
- ii = (int)hue;
- f = hue - (double)ii;
- p = (1.0 - s) * v;
- q = (1.0 - (s * f)) * v;
- t = (1.0 - (s * (1.0 - f))) * v;
- if (ii == 0) { red = v; green = t; blue = p; }
- else if (ii == 1) { red = q; green = v; blue = p; }
- else if (ii == 2) { red = p; green = v; blue = t; }
- else if (ii == 3) { red = p; green = q; blue = v; }
- else if (ii == 4) { red = t; green = p; blue = v; }
- else if (ii == 5) { red = v; green = p; blue = q; }
- *dest++ = (uch)(red * 255.0);
- *dest++ = (uch)(green * 255.0);
- *dest++ = (uch)(blue * 255.0);
- }
- }
- }
- fprintf(stderr, "done.\n");
- fflush(stderr);
- }
-
-/*---------------------------------------------------------------------------
- Blast background image to display buffer before beginning PNG decode.
- ---------------------------------------------------------------------------*/
-
- if (depth == 24 || depth == 32) {
- ulg red, green, blue;
- int bpp = ximage->bits_per_pixel;
-
- for (row = 0; row < rpng2_info.height; ++row) {
- src = bg_data + row*bg_rowbytes;
- dest = ximage->data + row*ximage_rowbytes;
- if (bpp == 32) { /* slightly optimized version */
- for (i = rpng2_info.width; i > 0; --i) {
- red = *src++;
- green = *src++;
- blue = *src++;
- pixel = (red << RShift) |
- (green << GShift) |
- (blue << BShift);
- /* recall that we set ximage->byte_order = MSBFirst above */
- *dest++ = (char)((pixel >> 24) & 0xff);
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
- } else {
- for (i = rpng2_info.width; i > 0; --i) {
- red = *src++;
- green = *src++;
- blue = *src++;
- pixel = (red << RShift) |
- (green << GShift) |
- (blue << BShift);
- /* recall that we set ximage->byte_order = MSBFirst above */
- /* GRR BUG? this assumes bpp == 24 & bits are packed low */
- /* (probably need to use RShift, RMask, etc.) */
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
- }
- }
-
- } else if (depth == 16) {
- ush red, green, blue;
-
- for (row = 0; row < rpng2_info.height; ++row) {
- src = bg_data + row*bg_rowbytes;
- dest = ximage->data + row*ximage_rowbytes;
- for (i = rpng2_info.width; i > 0; --i) {
- red = ((ush)(*src) << 8); ++src;
- green = ((ush)(*src) << 8); ++src;
- blue = ((ush)(*src) << 8); ++src;
- pixel = ((red >> RShift) & RMask) |
- ((green >> GShift) & GMask) |
- ((blue >> BShift) & BMask);
- /* recall that we set ximage->byte_order = MSBFirst above */
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
- }
-
- } else /* depth == 8 */ {
-
- /* GRR: add 8-bit support */
-
- }
-
- XPutImage(display, window, gc, ximage, 0, 0, 0, 0, rpng2_info.width,
- rpng2_info.height);
-
- return 0;
-
-} /* end function rpng2_x_load_bg_image() */
-
-
-
-
-
-static void rpng2_x_display_row(ulg row)
-{
- uch bg_red = rpng2_info.bg_red;
- uch bg_green = rpng2_info.bg_green;
- uch bg_blue = rpng2_info.bg_blue;
- uch *src, *src2=NULL;
- char *dest;
- uch r, g, b, a;
- int ximage_rowbytes = ximage->bytes_per_line;
- ulg i, pixel;
- static int rows=0, prevpass=(-1);
- static ulg firstrow;
-
-/*---------------------------------------------------------------------------
- rows and firstrow simply track how many rows (and which ones) have not
- yet been displayed; alternatively, we could call XPutImage() for every
- row and not bother with the records-keeping.
- ---------------------------------------------------------------------------*/
-
- Trace((stderr, "beginning rpng2_x_display_row()\n"))
-
- if (rpng2_info.pass != prevpass) {
- if (pause_after_pass && rpng2_info.pass > 0) {
- XEvent e;
- KeySym k;
-
- fprintf(stderr,
- "%s: end of pass %d of 7; click in image window to continue\n",
- PROGNAME, prevpass + 1);
- do
- XNextEvent(display, &e);
- while (!QUIT(e,k));
- }
- fprintf(stderr, "%s: pass %d of 7\r", PROGNAME, rpng2_info.pass + 1);
- fflush(stderr);
- prevpass = rpng2_info.pass;
- }
-
- if (rows == 0)
- firstrow = row; /* first row that is not yet displayed */
-
- ++rows; /* count of rows received but not yet displayed */
-
-/*---------------------------------------------------------------------------
- Aside from the use of the rpng2_info struct, the lack of an outer loop
- (over rows) and moving the XPutImage() call outside the "if (depth)"
- tests, this routine is identical to rpng_x_display_image() in the non-
- progressive version of the program.
- ---------------------------------------------------------------------------*/
-
- if (depth == 24 || depth == 32) {
- ulg red, green, blue;
- int bpp = ximage->bits_per_pixel;
-
- src = rpng2_info.image_data + row*rpng2_info.rowbytes;
- if (bg_image)
- src2 = bg_data + row*bg_rowbytes;
- dest = ximage->data + row*ximage_rowbytes;
- if (rpng2_info.channels == 3) {
- for (i = rpng2_info.width; i > 0; --i) {
- red = *src++;
- green = *src++;
- blue = *src++;
- pixel = (red << RShift) |
- (green << GShift) |
- (blue << BShift);
- /* recall that we set ximage->byte_order = MSBFirst above */
- if (bpp == 32) {
- *dest++ = (char)((pixel >> 24) & 0xff);
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- } else {
- /* GRR BUG? this assumes bpp == 24 & bits are packed low */
- /* (probably need to use RShift, RMask, etc.) */
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
- }
- } else /* if (rpng2_info.channels == 4) */ {
- for (i = rpng2_info.width; i > 0; --i) {
- r = *src++;
- g = *src++;
- b = *src++;
- a = *src++;
- if (bg_image) {
- bg_red = *src2++;
- bg_green = *src2++;
- bg_blue = *src2++;
- }
- if (a == 255) {
- red = r;
- green = g;
- blue = b;
- } else if (a == 0) {
- red = bg_red;
- green = bg_green;
- blue = bg_blue;
- } else {
- /* this macro (from png.h) composites the foreground
- * and background values and puts the result into the
- * first argument */
- alpha_composite(red, r, a, bg_red);
- alpha_composite(green, g, a, bg_green);
- alpha_composite(blue, b, a, bg_blue);
- }
- pixel = (red << RShift) |
- (green << GShift) |
- (blue << BShift);
- /* recall that we set ximage->byte_order = MSBFirst above */
- if (bpp == 32) {
- *dest++ = (char)((pixel >> 24) & 0xff);
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- } else {
- /* GRR BUG? this assumes bpp == 24 & bits are packed low */
- /* (probably need to use RShift, RMask, etc.) */
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
- }
- }
-
- } else if (depth == 16) {
- ush red, green, blue;
-
- src = rpng2_info.row_pointers[row];
- if (bg_image)
- src2 = bg_data + row*bg_rowbytes;
- dest = ximage->data + row*ximage_rowbytes;
- if (rpng2_info.channels == 3) {
- for (i = rpng2_info.width; i > 0; --i) {
- red = ((ush)(*src) << 8);
- ++src;
- green = ((ush)(*src) << 8);
- ++src;
- blue = ((ush)(*src) << 8);
- ++src;
- pixel = ((red >> RShift) & RMask) |
- ((green >> GShift) & GMask) |
- ((blue >> BShift) & BMask);
- /* recall that we set ximage->byte_order = MSBFirst above */
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
- } else /* if (rpng2_info.channels == 4) */ {
- for (i = rpng2_info.width; i > 0; --i) {
- r = *src++;
- g = *src++;
- b = *src++;
- a = *src++;
- if (bg_image) {
- bg_red = *src2++;
- bg_green = *src2++;
- bg_blue = *src2++;
- }
- if (a == 255) {
- red = ((ush)r << 8);
- green = ((ush)g << 8);
- blue = ((ush)b << 8);
- } else if (a == 0) {
- red = ((ush)bg_red << 8);
- green = ((ush)bg_green << 8);
- blue = ((ush)bg_blue << 8);
- } else {
- /* this macro (from png.h) composites the foreground
- * and background values and puts the result back into
- * the first argument (== fg byte here: safe) */
- alpha_composite(r, r, a, bg_red);
- alpha_composite(g, g, a, bg_green);
- alpha_composite(b, b, a, bg_blue);
- red = ((ush)r << 8);
- green = ((ush)g << 8);
- blue = ((ush)b << 8);
- }
- pixel = ((red >> RShift) & RMask) |
- ((green >> GShift) & GMask) |
- ((blue >> BShift) & BMask);
- /* recall that we set ximage->byte_order = MSBFirst above */
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
- }
-
- } else /* depth == 8 */ {
-
- /* GRR: add 8-bit support */
-
- }
-
-
-/*---------------------------------------------------------------------------
- Display after every 16 rows or when on one of last two rows. (Region
- may include previously displayed lines due to interlacing--i.e., not
- contiguous. Also, second-to-last row is final one in interlaced images
- with odd number of rows.) For demos, flush (and delay) after every 16th
- row so "sparse" passes don't go twice as fast.
- ---------------------------------------------------------------------------*/
-
- if (demo_timing && (row - firstrow >= 16 || row >= rpng2_info.height-2)) {
- XPutImage(display, window, gc, ximage, 0, (int)firstrow, 0,
- (int)firstrow, rpng2_info.width, row - firstrow + 1);
- XFlush(display);
- rows = 0;
- usleep(usleep_duration);
- } else
- if (!demo_timing && ((rows & 0xf) == 0 || row >= rpng2_info.height-2)) {
- XPutImage(display, window, gc, ximage, 0, (int)firstrow, 0,
- (int)firstrow, rpng2_info.width, row - firstrow + 1);
- XFlush(display);
- rows = 0;
- }
-
-}
-
-
-
-
-
-static void rpng2_x_finish_display(void)
-{
- Trace((stderr, "beginning rpng2_x_finish_display()\n"))
-
- /* last row has already been displayed by rpng2_x_display_row(), so we
- * have nothing to do here except set a flag and let the user know that
- * the image is done */
-
- rpng2_info.state = kDone;
- printf(
- "Done. Press Q, Esc or mouse button 1 (within image window) to quit.\n");
- fflush(stdout);
-}
-
-
-
-
-
-static void rpng2_x_redisplay_image(ulg startcol, ulg startrow,
- ulg width, ulg height)
-{
- uch bg_red = rpng2_info.bg_red;
- uch bg_green = rpng2_info.bg_green;
- uch bg_blue = rpng2_info.bg_blue;
- uch *src, *src2=NULL;
- char *dest;
- uch r, g, b, a;
- ulg i, row, lastrow = 0;
- ulg pixel;
- int ximage_rowbytes = ximage->bytes_per_line;
-
-
- Trace((stderr, "beginning display loop (image_channels == %d)\n",
- rpng2_info.channels))
- Trace((stderr, " (width = %ld, rowbytes = %d, ximage_rowbytes = %d)\n",
- rpng2_info.width, rpng2_info.rowbytes, ximage_rowbytes))
- Trace((stderr, " (bpp = %d)\n", ximage->bits_per_pixel))
- Trace((stderr, " (byte_order = %s)\n", ximage->byte_order == MSBFirst?
- "MSBFirst" : (ximage->byte_order == LSBFirst? "LSBFirst" : "unknown")))
-
-/*---------------------------------------------------------------------------
- Aside from the use of the rpng2_info struct and of src2 (for background
- image), this routine is identical to rpng_x_display_image() in the non-
- progressive version of the program--for the simple reason that redisplay
- of the image against a new background happens after the image is fully
- decoded and therefore is, by definition, non-progressive.
- ---------------------------------------------------------------------------*/
-
- if (depth == 24 || depth == 32) {
- ulg red, green, blue;
- int bpp = ximage->bits_per_pixel;
-
- for (lastrow = row = startrow; row < startrow+height; ++row) {
- src = rpng2_info.image_data + row*rpng2_info.rowbytes;
- if (bg_image)
- src2 = bg_data + row*bg_rowbytes;
- dest = ximage->data + row*ximage_rowbytes;
- if (rpng2_info.channels == 3) {
- for (i = rpng2_info.width; i > 0; --i) {
- red = *src++;
- green = *src++;
- blue = *src++;
-#ifdef NO_24BIT_MASKS
- pixel = (red << RShift) |
- (green << GShift) |
- (blue << BShift);
- /* recall that we set ximage->byte_order = MSBFirst above */
- if (bpp == 32) {
- *dest++ = (char)((pixel >> 24) & 0xff);
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- } else {
- /* this assumes bpp == 24 & bits are packed low */
- /* (probably need to use RShift, RMask, etc.) */
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
-#else
- red = (RShift < 0)? red << (-RShift) : red >> RShift;
- green = (GShift < 0)? green << (-GShift) : green >> GShift;
- blue = (BShift < 0)? blue << (-BShift) : blue >> BShift;
- pixel = (red & RMask) | (green & GMask) | (blue & BMask);
- /* recall that we set ximage->byte_order = MSBFirst above */
- if (bpp == 32) {
- *dest++ = (char)((pixel >> 24) & 0xff);
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- } else {
- /* GRR BUG */
- /* this assumes bpp == 24 & bits are packed low */
- /* (probably need to use RShift/RMask/etc. here, too) */
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
-#endif
- }
-
- } else /* if (rpng2_info.channels == 4) */ {
- for (i = rpng2_info.width; i > 0; --i) {
- r = *src++;
- g = *src++;
- b = *src++;
- a = *src++;
- if (bg_image) {
- bg_red = *src2++;
- bg_green = *src2++;
- bg_blue = *src2++;
- }
- if (a == 255) {
- red = r;
- green = g;
- blue = b;
- } else if (a == 0) {
- red = bg_red;
- green = bg_green;
- blue = bg_blue;
- } else {
- /* this macro (from png.h) composites the foreground
- * and background values and puts the result into the
- * first argument */
- alpha_composite(red, r, a, bg_red);
- alpha_composite(green, g, a, bg_green);
- alpha_composite(blue, b, a, bg_blue);
- }
-#ifdef NO_24BIT_MASKS
- pixel = (red << RShift) |
- (green << GShift) |
- (blue << BShift);
- /* recall that we set ximage->byte_order = MSBFirst above */
- if (bpp == 32) {
- *dest++ = (char)((pixel >> 24) & 0xff);
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- } else {
- /* this assumes bpp == 24 & bits are packed low */
- /* (probably need to use RShift, RMask, etc.) */
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
-#else
- red = (RShift < 0)? red << (-RShift) : red >> RShift;
- green = (GShift < 0)? green << (-GShift) : green >> GShift;
- blue = (BShift < 0)? blue << (-BShift) : blue >> BShift;
- pixel = (red & RMask) | (green & GMask) | (blue & BMask);
- /* recall that we set ximage->byte_order = MSBFirst above */
- if (bpp == 32) {
- *dest++ = (char)((pixel >> 24) & 0xff);
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- } else {
- /* GRR BUG */
- /* this assumes bpp == 24 & bits are packed low */
- /* (probably need to use RShift/RMask/etc. here, too) */
- *dest++ = (char)((pixel >> 16) & 0xff);
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
-#endif
- }
- }
- /* display after every 16 lines */
- if (((row+1) & 0xf) == 0) {
- XPutImage(display, window, gc, ximage, 0, (int)lastrow, 0,
- (int)lastrow, rpng2_info.width, 16);
- XFlush(display);
- lastrow = row + 1;
- }
- }
-
- } else if (depth == 16) {
- ush red, green, blue;
-
- for (lastrow = row = startrow; row < startrow+height; ++row) {
- src = rpng2_info.row_pointers[row];
- if (bg_image)
- src2 = bg_data + row*bg_rowbytes;
- dest = ximage->data + row*ximage_rowbytes;
- if (rpng2_info.channels == 3) {
- for (i = rpng2_info.width; i > 0; --i) {
- red = ((ush)(*src) << 8);
- ++src;
- green = ((ush)(*src) << 8);
- ++src;
- blue = ((ush)(*src) << 8);
- ++src;
- pixel = ((red >> RShift) & RMask) |
- ((green >> GShift) & GMask) |
- ((blue >> BShift) & BMask);
- /* recall that we set ximage->byte_order = MSBFirst above */
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
- } else /* if (rpng2_info.channels == 4) */ {
- for (i = rpng2_info.width; i > 0; --i) {
- r = *src++;
- g = *src++;
- b = *src++;
- a = *src++;
- if (bg_image) {
- bg_red = *src2++;
- bg_green = *src2++;
- bg_blue = *src2++;
- }
- if (a == 255) {
- red = ((ush)r << 8);
- green = ((ush)g << 8);
- blue = ((ush)b << 8);
- } else if (a == 0) {
- red = ((ush)bg_red << 8);
- green = ((ush)bg_green << 8);
- blue = ((ush)bg_blue << 8);
- } else {
- /* this macro (from png.h) composites the foreground
- * and background values and puts the result back into
- * the first argument (== fg byte here: safe) */
- alpha_composite(r, r, a, bg_red);
- alpha_composite(g, g, a, bg_green);
- alpha_composite(b, b, a, bg_blue);
- red = ((ush)r << 8);
- green = ((ush)g << 8);
- blue = ((ush)b << 8);
- }
- pixel = ((red >> RShift) & RMask) |
- ((green >> GShift) & GMask) |
- ((blue >> BShift) & BMask);
- /* recall that we set ximage->byte_order = MSBFirst above */
- *dest++ = (char)((pixel >> 8) & 0xff);
- *dest++ = (char)( pixel & 0xff);
- }
- }
- /* display after every 16 lines */
- if (((row+1) & 0xf) == 0) {
- XPutImage(display, window, gc, ximage, 0, (int)lastrow, 0,
- (int)lastrow, rpng2_info.width, 16);
- XFlush(display);
- lastrow = row + 1;
- }
- }
-
- } else /* depth == 8 */ {
-
- /* GRR: add 8-bit support */
-
- }
-
- Trace((stderr, "calling final XPutImage()\n"))
- if (lastrow < startrow+height) {
- XPutImage(display, window, gc, ximage, 0, (int)lastrow, 0,
- (int)lastrow, rpng2_info.width, rpng2_info.height-lastrow);
- XFlush(display);
- }
-
- (void)startcol;
- (void)width;
-
-} /* end function rpng2_x_redisplay_image() */
-
-
-
-
-
-#ifdef FEATURE_LOOP
-
-static void rpng2_x_reload_bg_image(void)
-{
- char *dest;
- uch r1, r2, g1, g2, b1, b2;
- uch r1_inv, r2_inv, g1_inv, g2_inv, b1_inv, b2_inv;
- int k, hmax, max;
- int xidx, yidx, yidx_max;
- int even_odd_vert, even_odd_horiz, even_odd;
- int invert_gradient2 = (bg[pat].type & 0x08);
- int invert_column;
- ulg i, row;
-
-
- bgscale = (pat == 0)? 8 : bgscale_default;
- yidx_max = bgscale - 1;
-
-/*---------------------------------------------------------------------------
- Vertical gradients (ramps) in NxN squares, alternating direction and
- colors (N == bgscale).
- ---------------------------------------------------------------------------*/
-
- if ((bg[pat].type & 0x07) == 0) {
- uch r1_min = rgb[bg[pat].rgb1_min].r;
- uch g1_min = rgb[bg[pat].rgb1_min].g;
- uch b1_min = rgb[bg[pat].rgb1_min].b;
- uch r2_min = rgb[bg[pat].rgb2_min].r;
- uch g2_min = rgb[bg[pat].rgb2_min].g;
- uch b2_min = rgb[bg[pat].rgb2_min].b;
- int r1_diff = rgb[bg[pat].rgb1_max].r - r1_min;
- int g1_diff = rgb[bg[pat].rgb1_max].g - g1_min;
- int b1_diff = rgb[bg[pat].rgb1_max].b - b1_min;
- int r2_diff = rgb[bg[pat].rgb2_max].r - r2_min;
- int g2_diff = rgb[bg[pat].rgb2_max].g - g2_min;
- int b2_diff = rgb[bg[pat].rgb2_max].b - b2_min;
-
- for (row = 0; row < rpng2_info.height; ++row) {
- yidx = (int)(row % bgscale);
- even_odd_vert = (int)((row / bgscale) & 1);
-
- r1 = r1_min + (r1_diff * yidx) / yidx_max;
- g1 = g1_min + (g1_diff * yidx) / yidx_max;
- b1 = b1_min + (b1_diff * yidx) / yidx_max;
- r1_inv = r1_min + (r1_diff * (yidx_max-yidx)) / yidx_max;
- g1_inv = g1_min + (g1_diff * (yidx_max-yidx)) / yidx_max;
- b1_inv = b1_min + (b1_diff * (yidx_max-yidx)) / yidx_max;
-
- r2 = r2_min + (r2_diff * yidx) / yidx_max;
- g2 = g2_min + (g2_diff * yidx) / yidx_max;
- b2 = b2_min + (b2_diff * yidx) / yidx_max;
- r2_inv = r2_min + (r2_diff * (yidx_max-yidx)) / yidx_max;
- g2_inv = g2_min + (g2_diff * (yidx_max-yidx)) / yidx_max;
- b2_inv = b2_min + (b2_diff * (yidx_max-yidx)) / yidx_max;
-
- dest = (char *)bg_data + row*bg_rowbytes;
- for (i = 0; i < rpng2_info.width; ++i) {
- even_odd_horiz = (int)((i / bgscale) & 1);
- even_odd = even_odd_vert ^ even_odd_horiz;
- invert_column =
- (even_odd_horiz && (bg[pat].type & 0x10));
- if (even_odd == 0) { /* gradient #1 */
- if (invert_column) {
- *dest++ = r1_inv;
- *dest++ = g1_inv;
- *dest++ = b1_inv;
- } else {
- *dest++ = r1;
- *dest++ = g1;
- *dest++ = b1;
- }
- } else { /* gradient #2 */
- if ((invert_column && invert_gradient2) ||
- (!invert_column && !invert_gradient2))
- {
- *dest++ = r2; /* not inverted or */
- *dest++ = g2; /* doubly inverted */
- *dest++ = b2;
- } else {
- *dest++ = r2_inv;
- *dest++ = g2_inv; /* singly inverted */
- *dest++ = b2_inv;
- }
- }
- }
- }
-
-/*---------------------------------------------------------------------------
- Soft gradient-diamonds with scale = bgscale. Code contributed by Adam
- M. Costello.
- ---------------------------------------------------------------------------*/
-
- } else if ((bg[pat].type & 0x07) == 1) {
-
- hmax = (bgscale-1)/2; /* half the max weight of a color */
- max = 2*hmax; /* the max weight of a color */
-
- r1 = rgb[bg[pat].rgb1_max].r;
- g1 = rgb[bg[pat].rgb1_max].g;
- b1 = rgb[bg[pat].rgb1_max].b;
- r2 = rgb[bg[pat].rgb2_max].r;
- g2 = rgb[bg[pat].rgb2_max].g;
- b2 = rgb[bg[pat].rgb2_max].b;
-
- for (row = 0; row < rpng2_info.height; ++row) {
- yidx = (int)(row % bgscale);
- if (yidx > hmax)
- yidx = bgscale-1 - yidx;
- dest = (char *)bg_data + row*bg_rowbytes;
- for (i = 0; i < rpng2_info.width; ++i) {
- xidx = (int)(i % bgscale);
- if (xidx > hmax)
- xidx = bgscale-1 - xidx;
- k = xidx + yidx;
- *dest++ = (k*r1 + (max-k)*r2) / max;
- *dest++ = (k*g1 + (max-k)*g2) / max;
- *dest++ = (k*b1 + (max-k)*b2) / max;
- }
- }
-
-/*---------------------------------------------------------------------------
- Radial "starburst" with azimuthal sinusoids; [eventually number of sinu-
- soids will equal bgscale?]. This one is slow but very cool. Code con-
- tributed by Pieter S. van der Meulen (originally in Smalltalk).
- ---------------------------------------------------------------------------*/
-
- } else if ((bg[pat].type & 0x07) == 2) {
- uch ch;
- int ii, x, y, hw, hh, grayspot;
- double freq, rotate, saturate, gray, intensity;
- double angle=0.0, aoffset=0.0, maxDist, dist;
- double red=0.0, green=0.0, blue=0.0, hue, s, v, f, p, q, t;
-
- hh = (int)(rpng2_info.height / 2);
- hw = (int)(rpng2_info.width / 2);
-
- /* variables for radial waves:
- * aoffset: number of degrees to rotate hue [CURRENTLY NOT USED]
- * freq: number of color beams originating from the center
- * grayspot: size of the graying center area (anti-alias)
- * rotate: rotation of the beams as a function of radius
- * saturate: saturation of beams' shape azimuthally
- */
- angle = CLIP(angle, 0.0, 360.0);
- grayspot = CLIP(bg[pat].bg_gray, 1, (hh + hw));
- freq = MAX((double)bg[pat].bg_freq, 0.0);
- saturate = (double)bg[pat].bg_bsat * 0.1;
- rotate = (double)bg[pat].bg_brot * 0.1;
- gray = 0.0;
- intensity = 0.0;
- maxDist = (double)((hw*hw) + (hh*hh));
-
- for (row = 0; row < rpng2_info.height; ++row) {
- y = (int)(row - hh);
- dest = (char *)bg_data + row*bg_rowbytes;
- for (i = 0; i < rpng2_info.width; ++i) {
- x = (int)(i - hw);
- angle = (x == 0)? PI_2 : atan((double)y / (double)x);
- gray = (double)MAX(ABS(y), ABS(x)) / grayspot;
- gray = MIN(1.0, gray);
- dist = (double)((x*x) + (y*y)) / maxDist;
- intensity = cos((angle+(rotate*dist*PI)) * freq) *
- gray * saturate;
- intensity = (MAX(MIN(intensity,1.0),-1.0) + 1.0) * 0.5;
- hue = (angle + PI) * INV_PI_360 + aoffset;
- s = gray * ((double)(ABS(x)+ABS(y)) / (double)(hw + hh));
- s = MIN(MAX(s,0.0), 1.0);
- v = MIN(MAX(intensity,0.0), 1.0);
-
- if (s == 0.0) {
- ch = (uch)(v * 255.0);
- *dest++ = ch;
- *dest++ = ch;
- *dest++ = ch;
- } else {
- if ((hue < 0.0) || (hue >= 360.0))
- hue -= (((int)(hue / 360.0)) * 360.0);
- hue /= 60.0;
- ii = (int)hue;
- f = hue - (double)ii;
- p = (1.0 - s) * v;
- q = (1.0 - (s * f)) * v;
- t = (1.0 - (s * (1.0 - f))) * v;
- if (ii == 0) { red = v; green = t; blue = p; }
- else if (ii == 1) { red = q; green = v; blue = p; }
- else if (ii == 2) { red = p; green = v; blue = t; }
- else if (ii == 3) { red = p; green = q; blue = v; }
- else if (ii == 4) { red = t; green = p; blue = v; }
- else if (ii == 5) { red = v; green = p; blue = q; }
- *dest++ = (uch)(red * 255.0);
- *dest++ = (uch)(green * 255.0);
- *dest++ = (uch)(blue * 255.0);
- }
- }
- }
- }
-
-} /* end function rpng2_x_reload_bg_image() */
-
-
-
-
-
-static int is_number(char *p)
-{
- while (*p) {
- if (!isdigit(*p))
- return FALSE;
- ++p;
- }
- return TRUE;
-}
-
-#endif /* FEATURE_LOOP */
-
-
-
-
-
-static void rpng2_x_cleanup(void)
-{
- if (bg_image && bg_data) {
- free(bg_data);
- bg_data = NULL;
- }
-
- if (rpng2_info.image_data) {
- free(rpng2_info.image_data);
- rpng2_info.image_data = NULL;
- }
-
- if (rpng2_info.row_pointers) {
- free(rpng2_info.row_pointers);
- rpng2_info.row_pointers = NULL;
- }
-
- if (ximage) {
- if (ximage->data) {
- free(ximage->data); /* we allocated it, so we free it */
- ximage->data = (char *)NULL; /* instead of XDestroyImage() */
- }
- XDestroyImage(ximage);
- ximage = NULL;
- }
-
- if (have_gc)
- XFreeGC(display, gc);
-
- if (have_window)
- XDestroyWindow(display, window);
-
- if (have_colormap)
- XFreeColormap(display, colormap);
-
- if (have_nondefault_visual)
- XFree(visual_list);
-}
-
-
-
-
-
-static int rpng2_x_msb(ulg u32val)
-{
- int i;
-
- for (i = 31; i >= 0; --i) {
- if (u32val & 0x80000000L)
- break;
- u32val <<= 1;
- }
- return i;
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/toucan.png b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/toucan.png
deleted file mode 100644
index 03960d4..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/toucan.png
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/wpng.c b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/wpng.c
deleted file mode 100644
index a8f367f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/wpng.c
+++ /dev/null
@@ -1,865 +0,0 @@
-/*---------------------------------------------------------------------------
-
- wpng - simple PNG-writing program wpng.c
-
- This program converts certain NetPBM binary files (grayscale and RGB,
- maxval = 255) to PNG. Non-interlaced PNGs are written progressively;
- interlaced PNGs are read and written in one memory-intensive blast.
-
- Thanks to Jean-loup Gailly for providing the necessary trick to read
- interactive text from the keyboard while stdin is redirected. Thanks
- to Cosmin Truta for Cygwin fixes.
-
- NOTE: includes provisional support for PNM type "8" (portable alphamap)
- images, presumed to be a 32-bit interleaved RGBA format; no pro-
- vision for possible interleaved grayscale+alpha (16-bit) format.
- THIS IS UNLIKELY TO BECOME AN OFFICIAL NETPBM ALPHA FORMAT!
-
- to do:
- - delete output file if quit before calling any writepng routines
- - process backspace with -text option under DOS/Win? (currently get ^H)
-
- ---------------------------------------------------------------------------
-
- Changelog:
- - 1.01: initial public release
- - 1.02: modified to allow abbreviated options
- - 1.03: removed extraneous character from usage screen; fixed bug in
- command-line parsing
- - 1.04: fixed DOS/OS2/Win32 detection, including partial Cygwin fix
- (see http://home.att.net/~perlspinr/diffs/GregBook_cygwin.diff)
- - 2.00: dual-licensed (added GNU GPL)
- - 2.01: check for integer overflow (Glenn R-P)
-
- [REPORTED BUG (win32 only): "contrib/gregbook/wpng.c - cmd line
- dose not work! In order to do something useful I needed to redirect
- both input and output, with cygwin and with bcc32 as well. Under
- Linux, the same wpng appears to work fine. I don't know what is
- the problem."]
-
- ---------------------------------------------------------------------------
-
- Copyright (c) 1998-2007, 2017 Greg Roelofs. All rights reserved.
-
- This software is provided "as is," without warranty of any kind,
- express or implied. In no event shall the author or contributors
- be held liable for any damages arising in any way from the use of
- this software.
-
- The contents of this file are DUAL-LICENSED. You may modify and/or
- redistribute this software according to the terms of one of the
- following two licenses (at your option):
-
-
- LICENSE 1 ("BSD-like with advertising clause"):
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute
- it freely, subject to the following restrictions:
-
- 1. Redistributions of source code must retain the above copyright
- notice, disclaimer, and this list of conditions.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, disclaimer, and this list of conditions in the documenta-
- tion and/or other materials provided with the distribution.
- 3. All advertising materials mentioning features or use of this
- software must display the following acknowledgment:
-
- This product includes software developed by Greg Roelofs
- and contributors for the book, "PNG: The Definitive Guide,"
- published by O'Reilly and Associates.
-
-
- LICENSE 2 (GNU GPL v2 or later):
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- ---------------------------------------------------------------------------*/
-
-#define PROGNAME "wpng"
-#define VERSION "2.00 of 2 June 2007"
-#define APPNAME "Simple PGM/PPM/PAM to PNG Converter"
-
-#if defined(__MSDOS__) || defined(__OS2__)
-# define DOS_OS2_W32
-#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
-# ifndef __GNUC__ /* treat Win32 native ports of gcc as Unix environments */
-# define DOS_OS2_W32
-# endif
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <setjmp.h> /* for jmpbuf declaration in writepng.h */
-#include <time.h>
-
-#ifdef DOS_OS2_W32
-# include <io.h> /* for isatty(), setmode() prototypes */
-# include <fcntl.h> /* O_BINARY for fdopen() without text translation */
-# ifdef __EMX__
-# ifndef getch
-# define getch() _read_kbd(0, 1, 0) /* need getche() */
-# endif
-# else /* !__EMX__ */
-# ifdef __GO32__
-# include <pc.h>
-# define getch() getkey() /* GRR: need getche() */
-# else
-# include <conio.h> /* for getche() console input */
-# endif
-# endif /* ?__EMX__ */
-# define FGETS(buf,len,stream) dos_kbd_gets(buf,len)
-#else
-# include <unistd.h> /* for isatty() prototype */
-# define FGETS fgets
-#endif
-
-/* #define DEBUG : this enables the Trace() macros */
-
-/* #define FORBID_LATIN1_CTRL : this requires the user to re-enter any
- text that includes control characters discouraged by the PNG spec; text
- that includes an escape character (27) must be re-entered regardless */
-
-#include "writepng.h" /* typedefs, common macros, writepng prototypes */
-
-
-
-/* local prototypes */
-
-static int wpng_isvalid_latin1(uch *p, int len);
-static void wpng_cleanup(void);
-
-#ifdef DOS_OS2_W32
- static char *dos_kbd_gets(char *buf, int len);
-#endif
-
-
-
-static mainprog_info wpng_info; /* lone global */
-
-
-
-int main(int argc, char **argv)
-{
-#ifndef DOS_OS2_W32
- FILE *keybd;
-#endif
-#ifdef sgi
- FILE *tmpfile; /* or we could just use keybd, since no overlap */
- char tmpline[80];
-#endif
- char *inname = NULL, outname[256];
- char *p, pnmchar, pnmline[256];
- char *bgstr, *textbuf = NULL;
- ulg rowbytes;
- int rc, len = 0;
- int error = 0;
- int text = FALSE;
- int maxval;
- double LUT_exponent; /* just the lookup table */
- double CRT_exponent = 2.2; /* just the monitor */
- double default_display_exponent; /* whole display system */
- double default_gamma = 0.0;
-
-
- wpng_info.infile = NULL;
- wpng_info.outfile = NULL;
- wpng_info.image_data = NULL;
- wpng_info.row_pointers = NULL;
- wpng_info.filter = FALSE;
- wpng_info.interlaced = FALSE;
- wpng_info.have_bg = FALSE;
- wpng_info.have_time = FALSE;
- wpng_info.have_text = 0;
- wpng_info.gamma = 0.0;
-
-
- /* First get the default value for our display-system exponent, i.e.,
- * the product of the CRT exponent and the exponent corresponding to
- * the frame-buffer's lookup table (LUT), if any. If the PNM image
- * looks correct on the user's display system, its file gamma is the
- * inverse of this value. (Note that this is not an exhaustive list
- * of LUT values--e.g., OpenStep has a lot of weird ones--but it should
- * cover 99% of the current possibilities. This section must ensure
- * that default_display_exponent is positive.) */
-
-#if defined(NeXT)
- /* third-party utilities can modify the default LUT exponent */
- LUT_exponent = 1.0 / 2.2;
- /*
- if (some_next_function_that_returns_gamma(&next_gamma))
- LUT_exponent = 1.0 / next_gamma;
- */
-#elif defined(sgi)
- LUT_exponent = 1.0 / 1.7;
- /* there doesn't seem to be any documented function to
- * get the "gamma" value, so we do it the hard way */
- tmpfile = fopen("/etc/config/system.glGammaVal", "r");
- if (tmpfile) {
- double sgi_gamma;
-
- fgets(tmpline, 80, tmpfile);
- fclose(tmpfile);
- sgi_gamma = atof(tmpline);
- if (sgi_gamma > 0.0)
- LUT_exponent = 1.0 / sgi_gamma;
- }
-#elif defined(Macintosh)
- LUT_exponent = 1.8 / 2.61;
- /*
- if (some_mac_function_that_returns_gamma(&mac_gamma))
- LUT_exponent = mac_gamma / 2.61;
- */
-#else
- LUT_exponent = 1.0; /* assume no LUT: most PCs */
-#endif
-
- /* the defaults above give 1.0, 1.3, 1.5 and 2.2, respectively: */
- default_display_exponent = LUT_exponent * CRT_exponent;
-
-
- /* If the user has set the SCREEN_GAMMA environment variable as suggested
- * (somewhat imprecisely) in the libpng documentation, use that; otherwise
- * use the default value we just calculated. Either way, the user may
- * override this via a command-line option. */
-
- if ((p = getenv("SCREEN_GAMMA")) != NULL) {
- double exponent = atof(p);
-
- if (exponent > 0.0)
- default_gamma = 1.0 / exponent;
- }
-
- if (default_gamma == 0.0)
- default_gamma = 1.0 / default_display_exponent;
-
-
- /* Now parse the command line for options and the PNM filename. */
-
- while (*++argv && !error) {
- if (!strncmp(*argv, "-i", 2)) {
- wpng_info.interlaced = TRUE;
- } else if (!strncmp(*argv, "-time", 3)) {
- wpng_info.modtime = time(NULL);
- wpng_info.have_time = TRUE;
- } else if (!strncmp(*argv, "-text", 3)) {
- text = TRUE;
- } else if (!strncmp(*argv, "-gamma", 2)) {
- if (!*++argv)
- ++error;
- else {
- wpng_info.gamma = atof(*argv);
- if (wpng_info.gamma <= 0.0)
- ++error;
- else if (wpng_info.gamma > 1.01)
- fprintf(stderr, PROGNAME
- " warning: file gammas are usually less than 1.0\n");
- }
- } else if (!strncmp(*argv, "-bgcolor", 4)) {
- if (!*++argv)
- ++error;
- else {
- bgstr = *argv;
- if (strlen(bgstr) != 7 || bgstr[0] != '#')
- ++error;
- else {
- unsigned r, g, b; /* this way quiets compiler warnings */
-
- sscanf(bgstr+1, "%2x%2x%2x", &r, &g, &b);
- wpng_info.bg_red = (uch)r;
- wpng_info.bg_green = (uch)g;
- wpng_info.bg_blue = (uch)b;
- wpng_info.have_bg = TRUE;
- }
- }
- } else {
- if (**argv != '-') {
- inname = *argv;
- if (argv[1]) /* shouldn't be any more args after filename */
- ++error;
- } else
- ++error; /* not expecting any other options */
- }
- }
-
-
- /* open the input and output files, or register an error and abort */
-
- if (!inname) {
- if (isatty(0)) {
- fprintf(stderr, PROGNAME
- ": must give input filename or provide image data via stdin\n");
- ++error;
- } else {
-#ifdef DOS_OS2_W32
- /* some buggy C libraries require BOTH setmode() and fdopen(bin) */
- setmode(fileno(stdin), O_BINARY);
- setmode(fileno(stdout), O_BINARY);
-#endif
- if ((wpng_info.infile = fdopen(fileno(stdin), "rb")) == NULL) {
- fprintf(stderr, PROGNAME
- ": unable to reopen stdin in binary mode\n");
- ++error;
- } else
- if ((wpng_info.outfile = fdopen(fileno(stdout), "wb")) == NULL) {
- fprintf(stderr, PROGNAME
- ": unable to reopen stdout in binary mode\n");
- fclose(wpng_info.infile);
- ++error;
- } else
- wpng_info.filter = TRUE;
- }
- } else if ((len = strlen(inname)) > 250) {
- fprintf(stderr, PROGNAME ": input filename is too long [%d chars]\n",
- len);
- ++error;
- } else if (!(wpng_info.infile = fopen(inname, "rb"))) {
- fprintf(stderr, PROGNAME ": can't open input file [%s]\n", inname);
- ++error;
- }
-
- if (!error) {
- fgets(pnmline, 256, wpng_info.infile);
- if (pnmline[0] != 'P' || ((pnmchar = pnmline[1]) != '5' &&
- pnmchar != '6' && pnmchar != '8'))
- {
- fprintf(stderr, PROGNAME
- ": input file [%s] is not a binary PGM, PPM or PAM file\n",
- inname);
- ++error;
- } else {
- wpng_info.pnmtype = (int)(pnmchar - '0');
- if (wpng_info.pnmtype != 8)
- wpng_info.have_bg = FALSE; /* no need for bg if opaque */
- do {
- fgets(pnmline, 256, wpng_info.infile); /* lose any comments */
- } while (pnmline[0] == '#');
- sscanf(pnmline, "%ld %ld", &wpng_info.width, &wpng_info.height);
- do {
- fgets(pnmline, 256, wpng_info.infile); /* more comment lines */
- } while (pnmline[0] == '#');
- sscanf(pnmline, "%d", &maxval);
- if (wpng_info.width <= 0L || wpng_info.height <= 0L ||
- maxval != 255)
- {
- fprintf(stderr, PROGNAME
- ": only positive width/height, maxval == 255 allowed \n");
- ++error;
- }
- wpng_info.sample_depth = 8; /* <==> maxval 255 */
-
- if (!wpng_info.filter) {
- /* make outname from inname */
- if ((p = strrchr(inname, '.')) == NULL ||
- (p - inname) != (len - 4))
- {
- strcpy(outname, inname);
- strcpy(outname+len, ".png");
- } else {
- len -= 4;
- strncpy(outname, inname, len);
- strcpy(outname+len, ".png");
- }
- /* check if outname already exists; if not, open */
- if ((wpng_info.outfile = fopen(outname, "rb")) != NULL) {
- fprintf(stderr, PROGNAME ": output file exists [%s]\n",
- outname);
- fclose(wpng_info.outfile);
- ++error;
- } else if (!(wpng_info.outfile = fopen(outname, "wb"))) {
- fprintf(stderr, PROGNAME ": can't open output file [%s]\n",
- outname);
- ++error;
- }
- }
- }
- if (error) {
- fclose(wpng_info.infile);
- wpng_info.infile = NULL;
- if (wpng_info.filter) {
- fclose(wpng_info.outfile);
- wpng_info.outfile = NULL;
- }
- }
- }
-
-
- /* if we had any errors, print usage and die horrible death...arrr! */
-
- if (error) {
- fprintf(stderr, "\n%s %s: %s\n", PROGNAME, VERSION, APPNAME);
- writepng_version_info();
- fprintf(stderr, "\n"
-"Usage: %s [-gamma exp] [-bgcolor bg] [-text] [-time] [-interlace] pnmfile\n"
-"or: ... | %s [-gamma exp] [-bgcolor bg] [-text] [-time] [-interlace] | ...\n"
- " exp \ttransfer-function exponent (``gamma'') of the image in\n"
- "\t\t floating-point format (e.g., ``%.5f''); if image looks\n"
- "\t\t correct on given display system, image gamma is equal to\n"
- "\t\t inverse of display-system exponent, i.e., 1 / (LUT * CRT)\n"
- "\t\t (where LUT = lookup-table exponent and CRT = CRT exponent;\n"
- "\t\t first varies, second is usually 2.2, all are positive)\n"
- " bg \tdesired background color for alpha-channel images, in\n"
- "\t\t 7-character hex RGB format (e.g., ``#ff7700'' for orange:\n"
- "\t\t same as HTML colors)\n"
- " -text\tprompt interactively for text info (tEXt chunks)\n"
- " -time\tinclude a tIME chunk (last modification time)\n"
- " -interlace\twrite interlaced PNG image\n"
- "\n"
-"pnmfile or stdin must be a binary PGM (`P5'), PPM (`P6') or (extremely\n"
-"unofficial and unsupported!) PAM (`P8') file. Currently it is required\n"
-"to have maxval == 255 (i.e., no scaling). If pnmfile is specified, it\n"
-"is converted to the corresponding PNG file with the same base name but a\n"
-"``.png'' extension; files read from stdin are converted and sent to stdout.\n"
-"The conversion is progressive (low memory usage) unless interlacing is\n"
-"requested; in that case the whole image will be buffered in memory and\n"
-"written in one call.\n"
- "\n", PROGNAME, PROGNAME, default_gamma);
- exit(1);
- }
-
-
- /* prepare the text buffers for libpng's use; note that even though
- * PNG's png_text struct includes a length field, we don't have to fill
- * it out */
-
- if (text &&
-#ifndef DOS_OS2_W32
- (keybd = fdopen(fileno(stderr), "r")) != NULL &&
-#endif
- (textbuf = (char *)malloc((5 + 9)*75)) != NULL)
- {
- int i, valid, result;
-
- fprintf(stderr,
- "Enter text info (no more than 72 characters per line);\n");
- fprintf(stderr, "to skip a field, hit the <Enter> key.\n");
- /* note: just <Enter> leaves len == 1 */
-
- do {
- valid = TRUE;
- p = textbuf + TEXT_TITLE_OFFSET;
- fprintf(stderr, " Title: ");
- fflush(stderr);
- if (FGETS(p, 74, keybd) && (len = strlen(p)) > 1) {
- if (p[len-1] == '\n')
- p[--len] = '\0';
- wpng_info.title = p;
- wpng_info.have_text |= TEXT_TITLE;
- if ((result = wpng_isvalid_latin1((uch *)p, len)) >= 0) {
- fprintf(stderr, " " PROGNAME " warning: character code"
- " %u is %sdiscouraged by the PNG\n specification "
- "[first occurrence was at character position #%d]\n",
- (unsigned)p[result], (p[result] == 27)? "strongly " : "",
- result+1);
- fflush(stderr);
-#ifdef FORBID_LATIN1_CTRL
- wpng_info.have_text &= ~TEXT_TITLE;
- valid = FALSE;
-#else
- if (p[result] == 27) { /* escape character */
- wpng_info.have_text &= ~TEXT_TITLE;
- valid = FALSE;
- }
-#endif
- }
- }
- } while (!valid);
-
- do {
- valid = TRUE;
- p = textbuf + TEXT_AUTHOR_OFFSET;
- fprintf(stderr, " Author: ");
- fflush(stderr);
- if (FGETS(p, 74, keybd) && (len = strlen(p)) > 1) {
- if (p[len-1] == '\n')
- p[--len] = '\0';
- wpng_info.author = p;
- wpng_info.have_text |= TEXT_AUTHOR;
- if ((result = wpng_isvalid_latin1((uch *)p, len)) >= 0) {
- fprintf(stderr, " " PROGNAME " warning: character code"
- " %u is %sdiscouraged by the PNG\n specification "
- "[first occurrence was at character position #%d]\n",
- (unsigned)p[result], (p[result] == 27)? "strongly " : "",
- result+1);
- fflush(stderr);
-#ifdef FORBID_LATIN1_CTRL
- wpng_info.have_text &= ~TEXT_AUTHOR;
- valid = FALSE;
-#else
- if (p[result] == 27) { /* escape character */
- wpng_info.have_text &= ~TEXT_AUTHOR;
- valid = FALSE;
- }
-#endif
- }
- }
- } while (!valid);
-
- do {
- valid = TRUE;
- p = textbuf + TEXT_DESC_OFFSET;
- fprintf(stderr, " Description (up to 9 lines):\n");
- for (i = 1; i < 10; ++i) {
- fprintf(stderr, " [%d] ", i);
- fflush(stderr);
- if (FGETS(p, 74, keybd) && (len = strlen(p)) > 1)
- p += len; /* now points at NULL; char before is newline */
- else
- break;
- }
- if ((len = p - (textbuf + TEXT_DESC_OFFSET)) > 1) {
- if (p[-1] == '\n') {
- p[-1] = '\0';
- --len;
- }
- wpng_info.desc = textbuf + TEXT_DESC_OFFSET;
- wpng_info.have_text |= TEXT_DESC;
- p = textbuf + TEXT_DESC_OFFSET;
- if ((result = wpng_isvalid_latin1((uch *)p, len)) >= 0) {
- fprintf(stderr, " " PROGNAME " warning: character code"
- " %u is %sdiscouraged by the PNG\n specification "
- "[first occurrence was at character position #%d]\n",
- (unsigned)p[result], (p[result] == 27)? "strongly " : "",
- result+1);
- fflush(stderr);
-#ifdef FORBID_LATIN1_CTRL
- wpng_info.have_text &= ~TEXT_DESC;
- valid = FALSE;
-#else
- if (p[result] == 27) { /* escape character */
- wpng_info.have_text &= ~TEXT_DESC;
- valid = FALSE;
- }
-#endif
- }
- }
- } while (!valid);
-
- do {
- valid = TRUE;
- p = textbuf + TEXT_COPY_OFFSET;
- fprintf(stderr, " Copyright: ");
- fflush(stderr);
- if (FGETS(p, 74, keybd) && (len = strlen(p)) > 1) {
- if (p[len-1] == '\n')
- p[--len] = '\0';
- wpng_info.copyright = p;
- wpng_info.have_text |= TEXT_COPY;
- if ((result = wpng_isvalid_latin1((uch *)p, len)) >= 0) {
- fprintf(stderr, " " PROGNAME " warning: character code"
- " %u is %sdiscouraged by the PNG\n specification "
- "[first occurrence was at character position #%d]\n",
- (unsigned)p[result], (p[result] == 27)? "strongly " : "",
- result+1);
- fflush(stderr);
-#ifdef FORBID_LATIN1_CTRL
- wpng_info.have_text &= ~TEXT_COPY;
- valid = FALSE;
-#else
- if (p[result] == 27) { /* escape character */
- wpng_info.have_text &= ~TEXT_COPY;
- valid = FALSE;
- }
-#endif
- }
- }
- } while (!valid);
-
- do {
- valid = TRUE;
- p = textbuf + TEXT_EMAIL_OFFSET;
- fprintf(stderr, " E-mail: ");
- fflush(stderr);
- if (FGETS(p, 74, keybd) && (len = strlen(p)) > 1) {
- if (p[len-1] == '\n')
- p[--len] = '\0';
- wpng_info.email = p;
- wpng_info.have_text |= TEXT_EMAIL;
- if ((result = wpng_isvalid_latin1((uch *)p, len)) >= 0) {
- fprintf(stderr, " " PROGNAME " warning: character code"
- " %u is %sdiscouraged by the PNG\n specification "
- "[first occurrence was at character position #%d]\n",
- (unsigned)p[result], (p[result] == 27)? "strongly " : "",
- result+1);
- fflush(stderr);
-#ifdef FORBID_LATIN1_CTRL
- wpng_info.have_text &= ~TEXT_EMAIL;
- valid = FALSE;
-#else
- if (p[result] == 27) { /* escape character */
- wpng_info.have_text &= ~TEXT_EMAIL;
- valid = FALSE;
- }
-#endif
- }
- }
- } while (!valid);
-
- do {
- valid = TRUE;
- p = textbuf + TEXT_URL_OFFSET;
- fprintf(stderr, " URL: ");
- fflush(stderr);
- if (FGETS(p, 74, keybd) && (len = strlen(p)) > 1) {
- if (p[len-1] == '\n')
- p[--len] = '\0';
- wpng_info.url = p;
- wpng_info.have_text |= TEXT_URL;
- if ((result = wpng_isvalid_latin1((uch *)p, len)) >= 0) {
- fprintf(stderr, " " PROGNAME " warning: character code"
- " %u is %sdiscouraged by the PNG\n specification "
- "[first occurrence was at character position #%d]\n",
- (unsigned)p[result], (p[result] == 27)? "strongly " : "",
- result+1);
- fflush(stderr);
-#ifdef FORBID_LATIN1_CTRL
- wpng_info.have_text &= ~TEXT_URL;
- valid = FALSE;
-#else
- if (p[result] == 27) { /* escape character */
- wpng_info.have_text &= ~TEXT_URL;
- valid = FALSE;
- }
-#endif
- }
- }
- } while (!valid);
-
-#ifndef DOS_OS2_W32
- fclose(keybd);
-#endif
-
- } else if (text) {
- fprintf(stderr, PROGNAME ": unable to allocate memory for text\n");
- text = FALSE;
- wpng_info.have_text = 0;
- }
-
-
- /* allocate libpng stuff, initialize transformations, write pre-IDAT data */
-
- if ((rc = writepng_init(&wpng_info)) != 0) {
- switch (rc) {
- case 2:
- fprintf(stderr, PROGNAME
- ": libpng initialization problem (longjmp)\n");
- break;
- case 4:
- fprintf(stderr, PROGNAME ": insufficient memory\n");
- break;
- case 11:
- fprintf(stderr, PROGNAME
- ": internal logic error (unexpected PNM type)\n");
- break;
- default:
- fprintf(stderr, PROGNAME
- ": unknown writepng_init() error\n");
- break;
- }
- exit(rc);
- }
-
-
- /* free textbuf, since it's a completely local variable and all text info
- * has just been written to the PNG file */
-
- if (text && textbuf) {
- free(textbuf);
- textbuf = NULL;
- }
-
-
- /* calculate rowbytes on basis of image type; note that this becomes much
- * more complicated if we choose to support PBM type, ASCII PNM types, or
- * 16-bit-per-sample binary data [currently not an official NetPBM type] */
-
- if (wpng_info.pnmtype == 5)
- rowbytes = wpng_info.width;
- else if (wpng_info.pnmtype == 6)
- rowbytes = wpng_info.width * 3;
- else /* if (wpng_info.pnmtype == 8) */
- rowbytes = wpng_info.width * 4;
-
-
- /* read and write the image, either in its entirety (if writing interlaced
- * PNG) or row by row (if non-interlaced) */
-
- fprintf(stderr, "Encoding image data...\n");
- fflush(stderr);
-
- if (wpng_info.interlaced) {
- long i;
- ulg bytes;
- ulg image_bytes;
-
- /* Guard against integer overflow */
- if (wpng_info_height > ((size_t)(-1)/rowbytes ||
- wpng_info_height > ((ulg)(-1)/rowbytes) {
- fprintf(stderr, PROGNAME ": image_data buffer too large\n");
- writepng_cleanup(&wpng_info);
- wpng_cleanup();
- exit(5);
- }
-
- image_bytes = rowbytes * wpng_info.height;
-
- wpng_info.image_data = (uch *)malloc(image_bytes);
- wpng_info.row_pointers = (uch **)malloc(wpng_info.height*sizeof(uch *));
- if (wpng_info.image_data == NULL || wpng_info.row_pointers == NULL) {
- fprintf(stderr, PROGNAME ": insufficient memory for image data\n");
- writepng_cleanup(&wpng_info);
- wpng_cleanup();
- exit(5);
- }
- for (i = 0; i < wpng_info.height; ++i)
- wpng_info.row_pointers[i] = wpng_info.image_data + i*rowbytes;
- bytes = fread(wpng_info.image_data, 1, image_bytes, wpng_info.infile);
- if (bytes != image_bytes) {
- fprintf(stderr, PROGNAME ": expected %lu bytes, got %lu bytes\n",
- image_bytes, bytes);
- fprintf(stderr, " (continuing anyway)\n");
- }
- if (writepng_encode_image(&wpng_info) != 0) {
- fprintf(stderr, PROGNAME
- ": libpng problem (longjmp) while writing image data\n");
- writepng_cleanup(&wpng_info);
- wpng_cleanup();
- exit(2);
- }
-
- } else /* not interlaced: write progressively (row by row) */ {
- long j;
- ulg bytes;
-
- wpng_info.image_data = (uch *)malloc(rowbytes);
- if (wpng_info.image_data == NULL) {
- fprintf(stderr, PROGNAME ": insufficient memory for row data\n");
- writepng_cleanup(&wpng_info);
- wpng_cleanup();
- exit(5);
- }
- error = 0;
- for (j = wpng_info.height; j > 0L; --j) {
- bytes = fread(wpng_info.image_data, 1, rowbytes, wpng_info.infile);
- if (bytes != rowbytes) {
- fprintf(stderr, PROGNAME
- ": expected %lu bytes, got %lu bytes (row %ld)\n", rowbytes,
- bytes, wpng_info.height-j);
- ++error;
- break;
- }
- if (writepng_encode_row(&wpng_info) != 0) {
- fprintf(stderr, PROGNAME
- ": libpng problem (longjmp) while writing row %ld\n",
- wpng_info.height-j);
- ++error;
- break;
- }
- }
- if (error) {
- writepng_cleanup(&wpng_info);
- wpng_cleanup();
- exit(2);
- }
- if (writepng_encode_finish(&wpng_info) != 0) {
- fprintf(stderr, PROGNAME ": error on final libpng call\n");
- writepng_cleanup(&wpng_info);
- wpng_cleanup();
- exit(2);
- }
- }
-
-
- /* OK, we're done (successfully): clean up all resources and quit */
-
- fprintf(stderr, "Done.\n");
- fflush(stderr);
-
- writepng_cleanup(&wpng_info);
- wpng_cleanup();
-
- return 0;
-}
-
-
-
-
-
-static int wpng_isvalid_latin1(uch *p, int len)
-{
- int i, result = -1;
-
- for (i = 0; i < len; ++i) {
- if (p[i] == 10 || (p[i] > 31 && p[i] < 127) || p[i] > 160)
- continue; /* character is completely OK */
- if (result < 0 || (p[result] != 27 && p[i] == 27))
- result = i; /* mark location of first questionable one */
- } /* or of first escape character (bad) */
-
- return result;
-}
-
-
-
-
-
-static void wpng_cleanup(void)
-{
- if (wpng_info.outfile) {
- fclose(wpng_info.outfile);
- wpng_info.outfile = NULL;
- }
-
- if (wpng_info.infile) {
- fclose(wpng_info.infile);
- wpng_info.infile = NULL;
- }
-
- if (wpng_info.image_data) {
- free(wpng_info.image_data);
- wpng_info.image_data = NULL;
- }
-
- if (wpng_info.row_pointers) {
- free(wpng_info.row_pointers);
- wpng_info.row_pointers = NULL;
- }
-}
-
-
-
-
-#ifdef DOS_OS2_W32
-
-static char *dos_kbd_gets(char *buf, int len)
-{
- int ch, count=0;
-
- do {
- buf[count++] = ch = getche();
- } while (ch != '\r' && count < len-1);
-
- buf[count--] = '\0'; /* terminate string */
- if (buf[count] == '\r') /* Enter key makes CR, so change to newline */
- buf[count] = '\n';
-
- fprintf(stderr, "\n"); /* Enter key does *not* cause a newline */
- fflush(stderr);
-
- return buf;
-}
-
-#endif /* DOS_OS2_W32 */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/writepng.c b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/writepng.c
deleted file mode 100644
index 055c743..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/writepng.c
+++ /dev/null
@@ -1,401 +0,0 @@
-/*---------------------------------------------------------------------------
-
- wpng - simple PNG-writing program writepng.c
-
- ---------------------------------------------------------------------------
-
- Copyright (c) 1998-2007, 2017 Greg Roelofs. All rights reserved.
-
- This software is provided "as is," without warranty of any kind,
- express or implied. In no event shall the author or contributors
- be held liable for any damages arising in any way from the use of
- this software.
-
- The contents of this file are DUAL-LICENSED. You may modify and/or
- redistribute this software according to the terms of one of the
- following two licenses (at your option):
-
-
- LICENSE 1 ("BSD-like with advertising clause"):
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute
- it freely, subject to the following restrictions:
-
- 1. Redistributions of source code must retain the above copyright
- notice, disclaimer, and this list of conditions.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, disclaimer, and this list of conditions in the documenta-
- tion and/or other materials provided with the distribution.
- 3. All advertising materials mentioning features or use of this
- software must display the following acknowledgment:
-
- This product includes software developed by Greg Roelofs
- and contributors for the book, "PNG: The Definitive Guide,"
- published by O'Reilly and Associates.
-
-
- LICENSE 2 (GNU GPL v2 or later):
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- ---------------------------------------------------------------------------*/
-
-
-#include <stdlib.h> /* for exit() prototype */
-#include <zlib.h>
-
-#include "png.h" /* libpng header, includes setjmp.h */
-#include "writepng.h" /* typedefs, common macros, public prototypes */
-
-
-/* local prototype */
-
-static void writepng_error_handler(png_structp png_ptr, png_const_charp msg);
-
-
-
-void writepng_version_info(void)
-{
- fprintf(stderr, " Compiled with libpng %s; using libpng %s.\n",
- PNG_LIBPNG_VER_STRING, png_libpng_ver);
- fprintf(stderr, " Compiled with zlib %s; using zlib %s.\n",
- ZLIB_VERSION, zlib_version);
-}
-
-
-
-
-/* returns 0 for success, 2 for libpng problem, 4 for out of memory, 11 for
- * unexpected pnmtype; note that outfile might be stdout */
-
-int writepng_init(mainprog_info *mainprog_ptr)
-{
- png_structp png_ptr; /* note: temporary variables! */
- png_infop info_ptr;
- int color_type, interlace_type;
-
-
- /* could also replace libpng warning-handler (final NULL), but no need: */
-
- png_ptr = png_create_write_struct(png_get_libpng_ver(NULL), mainprog_ptr,
- writepng_error_handler, NULL);
- if (!png_ptr)
- return 4; /* out of memory */
-
- info_ptr = png_create_info_struct(png_ptr);
- if (!info_ptr) {
- png_destroy_write_struct(&png_ptr, NULL);
- return 4; /* out of memory */
- }
-
-
- /* setjmp() must be called in every function that calls a PNG-writing
- * libpng function, unless an alternate error handler was installed--
- * but compatible error handlers must either use longjmp() themselves
- * (as in this program) or some other method to return control to
- * application code, so here we go: */
-
- if (setjmp(mainprog_ptr->jmpbuf)) {
- png_destroy_write_struct(&png_ptr, &info_ptr);
- return 2;
- }
-
-
- /* make sure outfile is (re)opened in BINARY mode */
-
- png_init_io(png_ptr, mainprog_ptr->outfile);
-
-
- /* set the compression levels--in general, always want to leave filtering
- * turned on (except for palette images) and allow all of the filters,
- * which is the default; want 32K zlib window, unless entire image buffer
- * is 16K or smaller (unknown here)--also the default; usually want max
- * compression (NOT the default); and remaining compression flags should
- * be left alone */
-
- png_set_compression_level(png_ptr, Z_BEST_COMPRESSION);
-/*
- >> this is default for no filtering; Z_FILTERED is default otherwise:
- png_set_compression_strategy(png_ptr, Z_DEFAULT_STRATEGY);
- >> these are all defaults:
- png_set_compression_mem_level(png_ptr, 8);
- png_set_compression_window_bits(png_ptr, 15);
- png_set_compression_method(png_ptr, 8);
- */
-
-
- /* set the image parameters appropriately */
-
- if (mainprog_ptr->pnmtype == 5)
- color_type = PNG_COLOR_TYPE_GRAY;
- else if (mainprog_ptr->pnmtype == 6)
- color_type = PNG_COLOR_TYPE_RGB;
- else if (mainprog_ptr->pnmtype == 8)
- color_type = PNG_COLOR_TYPE_RGB_ALPHA;
- else {
- png_destroy_write_struct(&png_ptr, &info_ptr);
- return 11;
- }
-
- interlace_type = mainprog_ptr->interlaced? PNG_INTERLACE_ADAM7 :
- PNG_INTERLACE_NONE;
-
- png_set_IHDR(png_ptr, info_ptr, mainprog_ptr->width, mainprog_ptr->height,
- mainprog_ptr->sample_depth, color_type, interlace_type,
- PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
-
- if (mainprog_ptr->gamma > 0.0)
- png_set_gAMA(png_ptr, info_ptr, mainprog_ptr->gamma);
-
- if (mainprog_ptr->have_bg) { /* we know it's RGBA, not gray+alpha */
- png_color_16 background;
-
- background.red = mainprog_ptr->bg_red;
- background.green = mainprog_ptr->bg_green;
- background.blue = mainprog_ptr->bg_blue;
- png_set_bKGD(png_ptr, info_ptr, &background);
- }
-
- if (mainprog_ptr->have_time) {
- png_time modtime;
-
- png_convert_from_time_t(&modtime, mainprog_ptr->modtime);
- png_set_tIME(png_ptr, info_ptr, &modtime);
- }
-
- if (mainprog_ptr->have_text) {
- png_text text[6];
- int num_text = 0;
-
- if (mainprog_ptr->have_text & TEXT_TITLE) {
- text[num_text].compression = PNG_TEXT_COMPRESSION_NONE;
- text[num_text].key = "Title";
- text[num_text].text = mainprog_ptr->title;
- ++num_text;
- }
- if (mainprog_ptr->have_text & TEXT_AUTHOR) {
- text[num_text].compression = PNG_TEXT_COMPRESSION_NONE;
- text[num_text].key = "Author";
- text[num_text].text = mainprog_ptr->author;
- ++num_text;
- }
- if (mainprog_ptr->have_text & TEXT_DESC) {
- text[num_text].compression = PNG_TEXT_COMPRESSION_NONE;
- text[num_text].key = "Description";
- text[num_text].text = mainprog_ptr->desc;
- ++num_text;
- }
- if (mainprog_ptr->have_text & TEXT_COPY) {
- text[num_text].compression = PNG_TEXT_COMPRESSION_NONE;
- text[num_text].key = "Copyright";
- text[num_text].text = mainprog_ptr->copyright;
- ++num_text;
- }
- if (mainprog_ptr->have_text & TEXT_EMAIL) {
- text[num_text].compression = PNG_TEXT_COMPRESSION_NONE;
- text[num_text].key = "E-mail";
- text[num_text].text = mainprog_ptr->email;
- ++num_text;
- }
- if (mainprog_ptr->have_text & TEXT_URL) {
- text[num_text].compression = PNG_TEXT_COMPRESSION_NONE;
- text[num_text].key = "URL";
- text[num_text].text = mainprog_ptr->url;
- ++num_text;
- }
- png_set_text(png_ptr, info_ptr, text, num_text);
- }
-
-
- /* write all chunks up to (but not including) first IDAT */
-
- png_write_info(png_ptr, info_ptr);
-
-
- /* if we wanted to write any more text info *after* the image data, we
- * would set up text struct(s) here and call png_set_text() again, with
- * just the new data; png_set_tIME() could also go here, but it would
- * have no effect since we already called it above (only one tIME chunk
- * allowed) */
-
-
- /* set up the transformations: for now, just pack low-bit-depth pixels
- * into bytes (one, two or four pixels per byte) */
-
- png_set_packing(png_ptr);
-/* png_set_shift(png_ptr, &sig_bit); to scale low-bit-depth values */
-
-
- /* make sure we save our pointers for use in writepng_encode_image() */
-
- mainprog_ptr->png_ptr = png_ptr;
- mainprog_ptr->info_ptr = info_ptr;
-
-
- /* OK, that's all we need to do for now; return happy */
-
- return 0;
-}
-
-
-
-
-
-/* returns 0 for success, 2 for libpng (longjmp) problem */
-
-int writepng_encode_image(mainprog_info *mainprog_ptr)
-{
- png_structp png_ptr = (png_structp)mainprog_ptr->png_ptr;
- png_infop info_ptr = (png_infop)mainprog_ptr->info_ptr;
-
-
- /* as always, setjmp() must be called in every function that calls a
- * PNG-writing libpng function */
-
- if (setjmp(mainprog_ptr->jmpbuf)) {
- png_destroy_write_struct(&png_ptr, &info_ptr);
- mainprog_ptr->png_ptr = NULL;
- mainprog_ptr->info_ptr = NULL;
- return 2;
- }
-
-
- /* and now we just write the whole image; libpng takes care of interlacing
- * for us */
-
- png_write_image(png_ptr, mainprog_ptr->row_pointers);
-
-
- /* since that's it, we also close out the end of the PNG file now--if we
- * had any text or time info to write after the IDATs, second argument
- * would be info_ptr, but we optimize slightly by sending NULL pointer: */
-
- png_write_end(png_ptr, NULL);
-
- return 0;
-}
-
-
-
-
-
-/* returns 0 if succeeds, 2 if libpng problem */
-
-int writepng_encode_row(mainprog_info *mainprog_ptr) /* NON-interlaced only! */
-{
- png_structp png_ptr = (png_structp)mainprog_ptr->png_ptr;
- png_infop info_ptr = (png_infop)mainprog_ptr->info_ptr;
-
-
- /* as always, setjmp() must be called in every function that calls a
- * PNG-writing libpng function */
-
- if (setjmp(mainprog_ptr->jmpbuf)) {
- png_destroy_write_struct(&png_ptr, &info_ptr);
- mainprog_ptr->png_ptr = NULL;
- mainprog_ptr->info_ptr = NULL;
- return 2;
- }
-
-
- /* image_data points at our one row of image data */
-
- png_write_row(png_ptr, mainprog_ptr->image_data);
-
- return 0;
-}
-
-
-
-
-
-/* returns 0 if succeeds, 2 if libpng problem */
-
-int writepng_encode_finish(mainprog_info *mainprog_ptr) /* NON-interlaced! */
-{
- png_structp png_ptr = (png_structp)mainprog_ptr->png_ptr;
- png_infop info_ptr = (png_infop)mainprog_ptr->info_ptr;
-
-
- /* as always, setjmp() must be called in every function that calls a
- * PNG-writing libpng function */
-
- if (setjmp(mainprog_ptr->jmpbuf)) {
- png_destroy_write_struct(&png_ptr, &info_ptr);
- mainprog_ptr->png_ptr = NULL;
- mainprog_ptr->info_ptr = NULL;
- return 2;
- }
-
-
- /* close out PNG file; if we had any text or time info to write after
- * the IDATs, second argument would be info_ptr: */
-
- png_write_end(png_ptr, NULL);
-
- return 0;
-}
-
-
-
-
-
-void writepng_cleanup(mainprog_info *mainprog_ptr)
-{
- png_structp png_ptr = (png_structp)mainprog_ptr->png_ptr;
- png_infop info_ptr = (png_infop)mainprog_ptr->info_ptr;
-
- if (png_ptr && info_ptr)
- png_destroy_write_struct(&png_ptr, &info_ptr);
-}
-
-
-
-
-
-static void writepng_error_handler(png_structp png_ptr, png_const_charp msg)
-{
- mainprog_info *mainprog_ptr;
-
- /* This function, aside from the extra step of retrieving the "error
- * pointer" (below) and the fact that it exists within the application
- * rather than within libpng, is essentially identical to libpng's
- * default error handler. The second point is critical: since both
- * setjmp() and longjmp() are called from the same code, they are
- * guaranteed to have compatible notions of how big a jmp_buf is,
- * regardless of whether _BSD_SOURCE or anything else has (or has not)
- * been defined. */
-
- fprintf(stderr, "writepng libpng error: %s\n", msg);
- fflush(stderr);
-
- mainprog_ptr = png_get_error_ptr(png_ptr);
- if (mainprog_ptr == NULL) { /* we are completely hosed now */
- fprintf(stderr,
- "writepng severe error: jmpbuf not recoverable; terminating.\n");
- fflush(stderr);
- exit(99);
- }
-
- /* Now we have our data structure we can use the information in it
- * to return control to our own higher level code (all the points
- * where 'setjmp' is called in this file.) This will work with other
- * error handling mechanisms as well - libpng always calls png_error
- * when it can proceed no further, thus, so long as the error handler
- * is intercepted, application code can do its own error recovery.
- */
- longjmp(mainprog_ptr->jmpbuf, 1);
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/writepng.h b/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/writepng.h
deleted file mode 100644
index 78b966b..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/gregbook/writepng.h
+++ /dev/null
@@ -1,133 +0,0 @@
-/*---------------------------------------------------------------------------
-
- wpng - simple PNG-writing program writepng.h
-
- ---------------------------------------------------------------------------
-
- Copyright (c) 1998-2007 Greg Roelofs. All rights reserved.
-
- This software is provided "as is," without warranty of any kind,
- express or implied. In no event shall the author or contributors
- be held liable for any damages arising in any way from the use of
- this software.
-
- The contents of this file are DUAL-LICENSED. You may modify and/or
- redistribute this software according to the terms of one of the
- following two licenses (at your option):
-
-
- LICENSE 1 ("BSD-like with advertising clause"):
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute
- it freely, subject to the following restrictions:
-
- 1. Redistributions of source code must retain the above copyright
- notice, disclaimer, and this list of conditions.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, disclaimer, and this list of conditions in the documenta-
- tion and/or other materials provided with the distribution.
- 3. All advertising materials mentioning features or use of this
- software must display the following acknowledgment:
-
- This product includes software developed by Greg Roelofs
- and contributors for the book, "PNG: The Definitive Guide,"
- published by O'Reilly and Associates.
-
-
- LICENSE 2 (GNU GPL v2 or later):
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- ---------------------------------------------------------------------------*/
-
-#ifndef TRUE
-# define TRUE 1
-# define FALSE 0
-#endif
-
-#ifndef MAX
-# define MAX(a,b) ((a) > (b)? (a) : (b))
-# define MIN(a,b) ((a) < (b)? (a) : (b))
-#endif
-
-#ifdef DEBUG
-# define Trace(x) {fprintf x ; fflush(stderr); fflush(stdout);}
-#else
-# define Trace(x) ;
-#endif
-
-#define TEXT_TITLE 0x01
-#define TEXT_AUTHOR 0x02
-#define TEXT_DESC 0x04
-#define TEXT_COPY 0x08
-#define TEXT_EMAIL 0x10
-#define TEXT_URL 0x20
-
-#define TEXT_TITLE_OFFSET 0
-#define TEXT_AUTHOR_OFFSET 72
-#define TEXT_COPY_OFFSET (2*72)
-#define TEXT_EMAIL_OFFSET (3*72)
-#define TEXT_URL_OFFSET (4*72)
-#define TEXT_DESC_OFFSET (5*72)
-
-typedef unsigned char uch;
-typedef unsigned short ush;
-typedef unsigned long ulg;
-
-typedef struct _mainprog_info {
- double gamma;
- long width;
- long height;
- time_t modtime;
- FILE *infile;
- FILE *outfile;
- void *png_ptr;
- void *info_ptr;
- uch *image_data;
- uch **row_pointers;
- char *title;
- char *author;
- char *desc;
- char *copyright;
- char *email;
- char *url;
- int filter; /* command-line-filter flag, not PNG row filter! */
- int pnmtype;
- int sample_depth;
- int interlaced;
- int have_bg;
- int have_time;
- int have_text;
- jmp_buf jmpbuf;
- uch bg_red;
- uch bg_green;
- uch bg_blue;
-} mainprog_info;
-
-
-/* prototypes for public functions in writepng.c */
-
-void writepng_version_info(void);
-
-int writepng_init(mainprog_info *mainprog_ptr);
-
-int writepng_encode_image(mainprog_info *mainprog_ptr);
-
-int writepng_encode_row(mainprog_info *mainprog_ptr);
-
-int writepng_encode_finish(mainprog_info *mainprog_ptr);
-
-void writepng_cleanup(mainprog_info *mainprog_ptr);
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/.dirstamp b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/.dirstamp
deleted file mode 100644
index e69de29..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/.dirstamp
+++ /dev/null
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/pngimage.Po b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/pngimage.Po
deleted file mode 100644
index fa63c50..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/pngimage.Po
+++ /dev/null
@@ -1,143 +0,0 @@
-contrib/libtests/pngimage.o: contrib/libtests/pngimage.c \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/endian.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/endian.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/byteswap.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/select.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/select.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/sysmacros.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/pthreadtypes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/alloca.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/errno.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/errno.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/errno.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm/errno.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno-base.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/assert.h \
- config.h contrib/libtests/../../png.h \
- contrib/libtests/../../pnglibconf.h contrib/libtests/../../pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix2_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/endian.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/endian.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/byteswap.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/select.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/select.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/sysmacros.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/pthreadtypes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/alloca.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno-base.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/assert.h:
-
-config.h:
-
-contrib/libtests/../../png.h:
-
-contrib/libtests/../../pnglibconf.h:
-
-contrib/libtests/../../pngconf.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix2_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/pngstest.Po b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/pngstest.Po
deleted file mode 100644
index 68c29c3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/pngstest.Po
+++ /dev/null
@@ -1,160 +0,0 @@
-contrib/libtests/pngstest.o: contrib/libtests/pngstest.c \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/endian.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/endian.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/byteswap.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/select.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/select.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/sysmacros.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/pthreadtypes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/alloca.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/errno.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/errno.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/errno.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm/errno.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno-base.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/ctype.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- config.h contrib/libtests/../../png.h \
- contrib/libtests/../../pnglibconf.h contrib/libtests/../../pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix2_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- contrib/libtests/../tools/sRGB.h contrib/libtests/pngstest-errors.h
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/endian.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/endian.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/byteswap.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/select.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/select.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/sysmacros.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/pthreadtypes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/alloca.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno-base.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/ctype.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
-
-config.h:
-
-contrib/libtests/../../png.h:
-
-contrib/libtests/../../pnglibconf.h:
-
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-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
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-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix2_lim.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h:
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-contrib/libtests/../tools/sRGB.h:
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-contrib/libtests/pngstest-errors.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/pngunknown.Po b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/pngunknown.Po
deleted file mode 100644
index ef1076d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/pngunknown.Po
+++ /dev/null
@@ -1,120 +0,0 @@
-contrib/libtests/pngunknown.o: contrib/libtests/pngunknown.c \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- contrib/libtests/../../png.h contrib/libtests/../../pnglibconf.h \
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/pthreadtypes.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h:
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-contrib/libtests/../../png.h:
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-contrib/libtests/../../pnglibconf.h:
-
-contrib/libtests/../../pngconf.h:
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-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
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-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix2_lim.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/pngvalid.Po b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/pngvalid.Po
deleted file mode 100644
index 2b765ea..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/pngvalid.Po
+++ /dev/null
@@ -1,228 +0,0 @@
-contrib/libtests/pngvalid.o: contrib/libtests/pngvalid.c \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/signal.h \
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- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
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- config.h \
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- contrib/libtests/../../png.h contrib/libtests/../../pnglibconf.h \
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- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h \
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- contrib/libtests/../visupng/cexcept.h
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/signal.h:
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h:
-
-config.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/fenv.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/fenv.h:
-
-contrib/libtests/../../png.h:
-
-contrib/libtests/../../pnglibconf.h:
-
-contrib/libtests/../../pngconf.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix2_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/xopen_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/xlocale.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/environments.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/getopt.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/waitflags.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/waitstatus.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/alloca.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_valf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_vall.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/inf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/nan.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
-
-contrib/libtests/../visupng/cexcept.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/timepng.Po b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/timepng.Po
deleted file mode 100644
index 9ce06a8..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.deps/timepng.Po
+++ /dev/null
@@ -1 +0,0 @@
-# dummy
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.dirstamp b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.dirstamp
deleted file mode 100644
index e69de29..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/.dirstamp
+++ /dev/null
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/fakepng.c b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/fakepng.c
deleted file mode 100644
index 6512c14..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/fakepng.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/* Fake a PNG - just write it out directly.
- *
- * COPYRIGHT: Written by John Cunningham Bowler, 2014.
- * To the extent possible under law, the author has waived all copyright and
- * related or neighboring rights to this work. This work is published from:
- * United States.
- *
- */
-
-#include <stdio.h>
-#include <zlib.h> /* for crc32 */
-
-void
-put_uLong(uLong val)
-{
- putchar(val >> 24);
- putchar(val >> 16);
- putchar(val >> 8);
- putchar(val >> 0);
-}
-
-void
-put_chunk(const unsigned char *chunk, uInt length)
-{
- uLong crc;
-
- put_uLong(length-4); /* Exclude the tag */
-
- fwrite(chunk, length, 1, stdout);
-
- crc = crc32(0, Z_NULL, 0);
- put_uLong(crc32(crc, chunk, length));
-}
-
-const unsigned char signature[] =
-{
- 137, 80, 78, 71, 13, 10, 26, 10
-};
-
-const unsigned char IHDR[] =
-{
- 73, 72, 68, 82, /* IHDR */
- 0, 0, 0, 1, /* width */
- 0, 0, 0, 1, /* height */
- 1, /* bit depth */
- 0, /* color type: greyscale */
- 0, /* compression method */
- 0, /* filter method */
- 0 /* interlace method: none */
-};
-
-const unsigned char unknown[] =
-{
- 'u', 'n', 'K', 'n' /* "unKn" - private safe to copy */
-};
-
-int
-main(void)
-{
- fwrite(signature, sizeof signature, 1, stdout);
- put_chunk(IHDR, sizeof IHDR);
-
- for (;;)
- put_chunk(unknown, sizeof unknown);
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/gentests.sh b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/gentests.sh
deleted file mode 100755
index f0f8d23..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/gentests.sh
+++ /dev/null
@@ -1,102 +0,0 @@
-#!/bin/sh
-#
-# Copyright (c) 2013 John Cunningham Bowler
-#
-# Last changed in libpng 1.6.0 [February 14, 2013]
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-#
-# Generate a set of PNG test images. The images are generated in a
-# sub-directory called 'tests' by default, however a command line argument will
-# change that name. The generation requires a built version of makepng in the
-# current directory.
-#
-usage(){
- exec >&2
- echo "$0 [<directory>]"
- echo ' Generate a set of PNG test files in "directory" ("tests" by default)'
- exit 1
-}
-
-mp="$PWD/makepng"
-test -x "$mp" || {
- exec >&2
- echo "$0: the 'makepng' program must exist"
- echo " in the directory within which this program:"
- echo " $mp"
- echo " is executed"
- usage
-}
-
-# Just one argument: the directory
-testdir="tests"
-test $# -gt 1 && {
- testdir="$1"
- shift
-}
-test $# -eq 0 || usage
-
-# Take care not to clobber something
-if test -e "$testdir"
-then
- test -d "$testdir" || usage
-else
- # mkdir -p isn't portable, so do the following
- mkdir "$testdir" 2>/dev/null || mkdir -p "$testdir" || usage
-fi
-
-# This fails in a very satisfactory way if it's not accessible
-cd "$testdir"
-:>"test$$.png" || {
- exec >&2
- echo "$testdir: directory not writable"
- usage
-}
-rm "test$$.png" || {
- exec >&2
- echo "$testdir: you have create but not write privileges here."
- echo " This is unexpected. You have a spurion; "'"'"test$$.png"'"'"."
- echo " You need to remove this yourself. Try a different directory."
- exit 1
-}
-
-# Now call makepng ($mp) to create every file we can think of with a
-# reasonable name
-doit(){
- for gamma in "" --sRGB --linear --1.8
- do
- case "$gamma" in
- "")
- gname=;;
- --sRGB)
- gname="-srgb";;
- --linear)
- gname="-lin";;
- --1.8)
- gname="-18";;
- *)
- gname="-$gamma";;
- esac
- "$mp" $gamma "$1" "$2" "test-$1-$2$gname.png"
- done
-}
-#
-for ct in gray palette
-do
- for bd in 1 2 4 8
- do
- doit "$ct" "$bd"
- done
-done
-#
-doit "gray" "16"
-#
-for ct in gray-alpha rgb rgb-alpha
-do
- for bd in 8 16
- do
- doit "$ct" "$bd"
- done
-done
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/makepng.c b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/makepng.c
deleted file mode 100644
index 312062b..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/makepng.c
+++ /dev/null
@@ -1,1941 +0,0 @@
-/* makepng.c */
-#define _ISOC99_SOURCE
-/* Copyright: */
-#define COPYRIGHT "\251 2013,2015 John Cunningham Bowler"
-/*
- * Last changed in libpng 1.6.20 [November 24, 2015]
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Make a test PNG image. The arguments are as follows:
- *
- * makepng [--sRGB|--linear|--1.8] [--tRNS] [--nofilters] \
- * color-type bit-depth [file-name]
- *
- * The color-type may be numeric (and must match the numbers used by the PNG
- * specification) or one of the format names listed below. The bit-depth is the
- * component bit depth, or the pixel bit-depth for a color-mapped image.
- *
- * Without any options no color-space information is written, with the options
- * an sRGB or the appropriate gAMA chunk is written. "1.8" refers to the
- * display system used on older Apple computers to correct for high ambient
- * light levels in the viewing environment; it applies a transform of
- * approximately value^(1/1.45) to the color values and so a gAMA chunk of 65909
- * is written (1.45/2.2).
- *
- * The image data is generated internally. Unless --color is given the images
- * used are as follows:
- *
- * 1 channel: a square image with a diamond, the least luminous colors are on
- * the edge of the image, the most luminous in the center.
- *
- * 2 channels: the color channel increases in luminosity from top to bottom, the
- * alpha channel increases in opacity from left to right.
- *
- * 3 channels: linear combinations of, from the top-left corner clockwise,
- * black, green, white, red.
- *
- * 4 channels: linear combinations of, from the top-left corner clockwise,
- * transparent, red, green, blue.
- *
- * For color-mapped images a four channel color-map is used and if --tRNS is
- * given the PNG file has a tRNS chunk, as follows:
- *
- * 1-bit: entry 0 is transparent-red, entry 1 is opaque-white
- * 2-bit: entry 0: transparent-green
- * entry 1: 40%-red
- * entry 2: 80%-blue
- * entry 3: opaque-white
- * 4-bit: the 16 combinations of the 2-bit case
- * 8-bit: the 256 combinations of the 4-bit case
- *
- * The palette always has 2^bit-depth entries and the tRNS chunk one fewer. The
- * image is the 1-channel diamond, but using palette index, not luminosity.
- *
- * For formats other than color-mapped ones if --tRNS is specified a tRNS chunk
- * is generated with all channels equal to the low bits of 0x0101.
- *
- * Image size is determined by the final pixel depth in bits, i.e. channels x
- * bit-depth, as follows:
- *
- * 8 bits or less: 64x64
- * 16 bits: 256x256
- * More than 16 bits: 1024x1024
- *
- * Row filtering is the libpng default but may be turned off (the 'none' filter
- * is used on every row) with the --nofilters option.
- *
- * The images are not interlaced.
- *
- * If file-name is given then the PNG is written to that file, else it is
- * written to stdout. Notice that stdout is not supported on systems where, by
- * default, it assumes text output; this program makes no attempt to change the
- * text mode of stdout!
- *
- * makepng --color=<color> ...
- *
- * If --color is given then the whole image has that color, color-mapped images
- * will have exactly one palette entry and all image files with be 16x16 in
- * size. The color value is 1 to 4 decimal numbers as appropriate for the color
- * type.
- *
- * makepng --small ...
- *
- * If --small is given the images are no larger than required to include every
- * possible pixel value for the format.
- *
- * For formats with pixels 8 bits or fewer in size the images consist of a
- * single row with 2^pixel-depth pixels, one of every possible value.
- *
- * For formats with 16-bit pixels a 256x256 image is generated containing every
- * possible pixel value.
- *
- * For larger pixel sizes a 256x256 image is generated where the first row
- * consists of each pixel that has identical byte values throughout the pixel
- * followed by rows where the byte values differ within the pixel.
- *
- * In all cases the pixel values are arranged in such a way that the SUB and UP
- * filters give byte sequences for maximal zlib compression. By default (if
- * --nofilters is not given) the SUB filter is used on the first row and the UP
- * filter on all following rows.
- *
- * The --small option is meant to provide good test-case coverage, however the
- * images are not easy to examine visually. Without the --small option the
- * images contain identical color values; the pixel values are adjusted
- * according to the gamma encoding with no gamma encoding being interpreted as
- * sRGB.
- *
- * LICENSING
- * =========
- *
- * This code is copyright of the authors, see the COPYRIGHT define above. The
- * code is licensed as above, using the libpng license. The code generates
- * images which are solely the product of the code; the options choose which of
- * the many possibilities to generate. The images that result (but not the code
- * which generates them) are licensed as defined here:
- *
- * IMPORTANT: the COPYRIGHT #define must contain ISO-Latin-1 characters, the
- * IMAGE_LICENSING #define must contain UTF-8 characters. The 'copyright'
- * symbol 0xA9U (\251) in ISO-Latin-1 encoding and 0xC20xA9 (\302\251) in UTF-8.
- */
-#define IMAGE_LICENSING "Dedicated to the public domain per Creative Commons "\
- "license \"CC0 1.0\"; https://creativecommons.org/publicdomain/zero/1.0/"
-
-#include <stddef.h> /* for offsetof */
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
-#include <math.h>
-#include <errno.h>
-#include <assert.h>
-#include <stdint.h>
-
-#if defined(HAVE_CONFIG_H) && !defined(PNG_NO_CONFIG_H)
-# include <config.h>
-#endif
-
-/* Define the following to use this test against your installed libpng, rather
- * than the one being built here:
- */
-#ifdef PNG_FREESTANDING_TESTS
-# include <png.h>
-#else
-# include "../../png.h"
-#endif
-
-#include <zlib.h>
-
-/* Work round for GCC complaints about casting a (double) function result to
- * an unsigned:
- */
-static unsigned int
-flooru(double d)
-{
- d = floor(d);
- return (unsigned int)d;
-}
-
-static png_byte
-floorb(double d)
-{
- d = floor(d);
- return (png_byte)d;
-}
-
-/* This structure is used for inserting extra chunks (the --insert argument, not
- * documented above.)
- */
-typedef struct chunk_insert
-{
- struct chunk_insert *next;
- void (*insert)(png_structp, png_infop, int, png_charpp);
- int nparams;
- png_charp parameters[1];
-} chunk_insert;
-
-static unsigned int
-channels_of_type(int color_type)
-{
- if (color_type & PNG_COLOR_MASK_PALETTE)
- return 1;
-
- else
- {
- int channels = 1;
-
- if (color_type & PNG_COLOR_MASK_COLOR)
- channels = 3;
-
- if (color_type & PNG_COLOR_MASK_ALPHA)
- return channels + 1;
-
- else
- return channels;
- }
-}
-
-static unsigned int
-pixel_depth_of_type(int color_type, int bit_depth)
-{
- return channels_of_type(color_type) * bit_depth;
-}
-
-static unsigned int
-image_size_of_type(int color_type, int bit_depth, unsigned int *colors,
- int small)
-{
- if (*colors)
- return 16;
-
- else
- {
- int pixel_depth = pixel_depth_of_type(color_type, bit_depth);
-
- if (small)
- {
- if (pixel_depth <= 8) /* there will be one row */
- return 1 << pixel_depth;
-
- else
- return 256;
- }
-
- else if (pixel_depth < 8)
- return 64;
-
- else if (pixel_depth > 16)
- return 1024;
-
- else
- return 256;
- }
-}
-
-static void
-set_color(png_colorp color, png_bytep trans, unsigned int red,
- unsigned int green, unsigned int blue, unsigned int alpha,
- png_const_bytep gamma_table)
-{
- color->red = gamma_table[red];
- color->green = gamma_table[green];
- color->blue = gamma_table[blue];
- *trans = (png_byte)alpha;
-}
-
-static int
-generate_palette(png_colorp palette, png_bytep trans, int bit_depth,
- png_const_bytep gamma_table, unsigned int *colors)
-{
- /*
- * 1-bit: entry 0 is transparent-red, entry 1 is opaque-white
- * 2-bit: entry 0: transparent-green
- * entry 1: 40%-red
- * entry 2: 80%-blue
- * entry 3: opaque-white
- * 4-bit: the 16 combinations of the 2-bit case
- * 8-bit: the 256 combinations of the 4-bit case
- */
- switch (colors[0])
- {
- default:
- fprintf(stderr, "makepng: --colors=...: invalid count %u\n",
- colors[0]);
- exit(1);
-
- case 1:
- set_color(palette+0, trans+0, colors[1], colors[1], colors[1], 255,
- gamma_table);
- return 1;
-
- case 2:
- set_color(palette+0, trans+0, colors[1], colors[1], colors[1],
- colors[2], gamma_table);
- return 1;
-
- case 3:
- set_color(palette+0, trans+0, colors[1], colors[2], colors[3], 255,
- gamma_table);
- return 1;
-
- case 4:
- set_color(palette+0, trans+0, colors[1], colors[2], colors[3],
- colors[4], gamma_table);
- return 1;
-
- case 0:
- if (bit_depth == 1)
- {
- set_color(palette+0, trans+0, 255, 0, 0, 0, gamma_table);
- set_color(palette+1, trans+1, 255, 255, 255, 255, gamma_table);
- return 2;
- }
-
- else
- {
- unsigned int size = 1U << (bit_depth/2); /* 2, 4 or 16 */
- unsigned int x, y;
- volatile unsigned int ip = 0;
-
- for (x=0; x<size; ++x) for (y=0; y<size; ++y)
- {
- ip = x + (size * y);
-
- /* size is at most 16, so the scaled value below fits in 16 bits
- */
-# define interp(pos, c1, c2) ((pos * c1) + ((size-pos) * c2))
-# define xyinterp(x, y, c1, c2, c3, c4) (((size * size / 2) +\
- (interp(x, c1, c2) * y + (size-y) * interp(x, c3, c4))) /\
- (size*size))
-
- set_color(palette+ip, trans+ip,
- /* color: green, red,blue,white */
- xyinterp(x, y, 0, 255, 0, 255),
- xyinterp(x, y, 255, 0, 0, 255),
- xyinterp(x, y, 0, 0, 255, 255),
- /* alpha: 0, 102, 204, 255) */
- xyinterp(x, y, 0, 102, 204, 255),
- gamma_table);
- }
-
- return ip+1;
- }
- }
-}
-
-static void
-set_value(png_bytep row, size_t rowbytes, png_uint_32 x, unsigned int bit_depth,
- png_uint_32 value, png_const_bytep gamma_table, double conv)
-{
- unsigned int mask = (1U << bit_depth)-1;
-
- x *= bit_depth; /* Maximum x is 4*1024, maximum bit_depth is 16 */
-
- if (value <= mask)
- {
- png_uint_32 offset = x >> 3;
-
- if (offset < rowbytes && (bit_depth < 16 || offset+1 < rowbytes))
- {
- row += offset;
-
- switch (bit_depth)
- {
- case 1:
- case 2:
- case 4:
- /* Don't gamma correct - values get smashed */
- {
- unsigned int shift = (8 - bit_depth) - (x & 0x7U);
-
- mask <<= shift;
- value = (value << shift) & mask;
- *row = (png_byte)((*row & ~mask) | value);
- }
- return;
-
- default:
- fprintf(stderr, "makepng: bad bit depth (internal error)\n");
- exit(1);
-
- case 16:
- value = flooru(65535*pow(value/65535.,conv)+.5);
- *row++ = (png_byte)(value >> 8);
- *row = (png_byte)value;
- return;
-
- case 8:
- *row = gamma_table[value];
- return;
- }
- }
-
- else
- {
- fprintf(stderr, "makepng: row buffer overflow (internal error)\n");
- exit(1);
- }
- }
-
- else
- {
- fprintf(stderr, "makepng: component overflow (internal error)\n");
- exit(1);
- }
-}
-
-static int /* filter mask for row */
-generate_row(png_bytep row, size_t rowbytes, unsigned int y, int color_type,
- int bit_depth, png_const_bytep gamma_table, double conv,
- unsigned int *colors, int small)
-{
- int filters = 0; /* file *MASK*, 0 means the default, not NONE */
- png_uint_32 size_max =
- image_size_of_type(color_type, bit_depth, colors, small)-1;
- png_uint_32 depth_max = (1U << bit_depth)-1; /* up to 65536 */
-
- if (colors[0] == 0) if (small)
- {
- unsigned int pixel_depth = pixel_depth_of_type(color_type, bit_depth);
-
- /* For pixel depths less than 16 generate a single row containing all the
- * possible pixel values. For 16 generate all 65536 byte pair
- * combinations in a 256x256 pixel array.
- */
- switch (pixel_depth)
- {
- case 1:
- assert(y == 0 && rowbytes == 1 && size_max == 1);
- row[0] = 0x6CU; /* binary: 01101100, only top 2 bits used */
- filters = PNG_FILTER_NONE;
- break;
-
- case 2:
- assert(y == 0 && rowbytes == 1 && size_max == 3);
- row[0] = 0x1BU; /* binary 00011011, all bits used */
- filters = PNG_FILTER_NONE;
- break;
-
- case 4:
- assert(y == 0 && rowbytes == 8 && size_max == 15);
- row[0] = 0x01U;
- row[1] = 0x23U; /* SUB gives 0x22U for all following bytes */
- row[2] = 0x45U;
- row[3] = 0x67U;
- row[4] = 0x89U;
- row[5] = 0xABU;
- row[6] = 0xCDU;
- row[7] = 0xEFU;
- filters = PNG_FILTER_SUB;
- break;
-
- case 8:
- /* The row will have all the pixel values in order starting with
- * '1', the SUB filter will change every byte into '1' (including
- * the last, which generates pixel value '0'). Since the SUB filter
- * has value 1 this should result in maximum compression.
- */
- assert(y == 0 && rowbytes == 256 && size_max == 255);
- for (;;)
- {
- row[size_max] = 0xFFU & (size_max+1);
- if (size_max == 0)
- break;
- --size_max;
- }
- filters = PNG_FILTER_SUB;
- break;
-
- case 16:
- /* Rows are generated such that each row has a constant difference
- * between the first and second byte of each pixel and so that the
- * difference increases by 1 at each row. The rows start with the
- * first byte value of 0 and the value increases to 255 across the
- * row.
- *
- * The difference starts at 1, so the first row is:
- *
- * 0 1 1 2 2 3 3 4 ... 254 255 255 0
- *
- * This means that running the SUB filter on the first row produces:
- *
- * [SUB==1] 0 1 0 1 0 1...
- *
- * Then the difference is 2 on the next row, giving:
- *
- * 0 2 1 3 2 4 3 5 ... 254 0 255 1
- *
- * When the UP filter is run on this libpng produces:
- *
- * [UP ==2] 0 1 0 1 0 1...
- *
- * And so on for all the remain rows to the final two * rows:
- *
- * row 254: 0 255 1 0 2 1 3 2 4 3 ... 254 253 255 254
- * row 255: 0 0 1 1 2 2 3 3 4 4 ... 254 254 255 255
- */
- assert(rowbytes == 512 && size_max == 255);
- for (;;)
- {
- row[2*size_max ] = 0xFFU & size_max;
- row[2*size_max+1] = 0xFFU & (size_max+y+1);
- if (size_max == 0)
- break;
- --size_max;
- }
- /* The first row must include PNG_FILTER_UP so that libpng knows we
- * need to keep it for the following row:
- */
- filters = (y == 0 ? PNG_FILTER_SUB+PNG_FILTER_UP : PNG_FILTER_UP);
- break;
-
- case 24:
- case 32:
- case 48:
- case 64:
- /* The rows are filled by an alogorithm similar to the above, in the
- * first row pixel bytes are all equal, increasing from 0 by 1 for
- * each pixel. In the second row the bytes within a pixel are
- * incremented 1,3,5,7,... from the previous row byte. Using an odd
- * number ensures all the possible byte values are used.
- */
- assert(size_max == 255 && rowbytes == 256*(pixel_depth>>3));
- pixel_depth >>= 3; /* now in bytes */
- while (rowbytes > 0)
- {
- const size_t pixel_index = --rowbytes/pixel_depth;
-
- if (y == 0)
- row[rowbytes] = 0xFFU & pixel_index;
-
- else
- {
- const size_t byte_offset =
- rowbytes - pixel_index * pixel_depth;
-
- row[rowbytes] =
- 0xFFU & (pixel_index + (byte_offset * 2*y) + 1);
- }
- }
- filters = (y == 0 ? PNG_FILTER_SUB+PNG_FILTER_UP : PNG_FILTER_UP);
- break;
-
- default:
- assert(0/*NOT REACHED*/);
- }
- }
-
- else switch (channels_of_type(color_type))
- {
- /* 1 channel: a square image with a diamond, the least luminous colors are on
- * the edge of the image, the most luminous in the center.
- */
- case 1:
- {
- png_uint_32 x;
- png_uint_32 base = 2*size_max - abs(2*y-size_max);
-
- for (x=0; x<=size_max; ++x)
- {
- png_uint_32 luma = base - abs(2*x-size_max);
-
- /* 'luma' is now in the range 0..2*size_max, we need
- * 0..depth_max
- */
- luma = (luma*depth_max + size_max) / (2*size_max);
- set_value(row, rowbytes, x, bit_depth, luma, gamma_table, conv);
- }
- }
- break;
-
- /* 2 channels: the color channel increases in luminosity from top to bottom,
- * the alpha channel increases in opacity from left to right.
- */
- case 2:
- {
- png_uint_32 alpha = (depth_max * y * 2 + size_max) / (2 * size_max);
- png_uint_32 x;
-
- for (x=0; x<=size_max; ++x)
- {
- set_value(row, rowbytes, 2*x, bit_depth,
- (depth_max * x * 2 + size_max) / (2 * size_max), gamma_table,
- conv);
- set_value(row, rowbytes, 2*x+1, bit_depth, alpha, gamma_table,
- conv);
- }
- }
- break;
-
- /* 3 channels: linear combinations of, from the top-left corner clockwise,
- * black, green, white, red.
- */
- case 3:
- {
- /* x0: the black->red scale (the value of the red component) at the
- * start of the row (blue and green are 0).
- * x1: the green->white scale (the value of the red and blue
- * components at the end of the row; green is depth_max).
- */
- png_uint_32 Y = (depth_max * y * 2 + size_max) / (2 * size_max);
- png_uint_32 x;
-
- /* Interpolate x/depth_max from start to end:
- *
- * start end difference
- * red: Y Y 0
- * green: 0 depth_max depth_max
- * blue: 0 Y Y
- */
- for (x=0; x<=size_max; ++x)
- {
- set_value(row, rowbytes, 3*x+0, bit_depth, /* red */ Y,
- gamma_table, conv);
- set_value(row, rowbytes, 3*x+1, bit_depth, /* green */
- (depth_max * x * 2 + size_max) / (2 * size_max),
- gamma_table, conv);
- set_value(row, rowbytes, 3*x+2, bit_depth, /* blue */
- (Y * x * 2 + size_max) / (2 * size_max),
- gamma_table, conv);
- }
- }
- break;
-
- /* 4 channels: linear combinations of, from the top-left corner clockwise,
- * transparent, red, green, blue.
- */
- case 4:
- {
- /* x0: the transparent->blue scale (the value of the blue and alpha
- * components) at the start of the row (red and green are 0).
- * x1: the red->green scale (the value of the red and green
- * components at the end of the row; blue is 0 and alpha is
- * depth_max).
- */
- png_uint_32 Y = (depth_max * y * 2 + size_max) / (2 * size_max);
- png_uint_32 x;
-
- /* Interpolate x/depth_max from start to end:
- *
- * start end difference
- * red: 0 depth_max-Y depth_max-Y
- * green: 0 Y Y
- * blue: Y 0 -Y
- * alpha: Y depth_max depth_max-Y
- */
- for (x=0; x<=size_max; ++x)
- {
- set_value(row, rowbytes, 4*x+0, bit_depth, /* red */
- ((depth_max-Y) * x * 2 + size_max) / (2 * size_max),
- gamma_table, conv);
- set_value(row, rowbytes, 4*x+1, bit_depth, /* green */
- (Y * x * 2 + size_max) / (2 * size_max),
- gamma_table, conv);
- set_value(row, rowbytes, 4*x+2, bit_depth, /* blue */
- Y - (Y * x * 2 + size_max) / (2 * size_max),
- gamma_table, conv);
- set_value(row, rowbytes, 4*x+3, bit_depth, /* alpha */
- Y + ((depth_max-Y) * x * 2 + size_max) / (2 * size_max),
- gamma_table, conv);
- }
- }
- break;
-
- default:
- fprintf(stderr, "makepng: internal bad channel count\n");
- exit(2);
- }
-
- else if (color_type & PNG_COLOR_MASK_PALETTE)
- {
- /* Palette with fixed color: the image rows are all 0 and the image width
- * is 16.
- */
- memset(row, 0, rowbytes);
- }
-
- else if (colors[0] == channels_of_type(color_type))
- switch (channels_of_type(color_type))
- {
- case 1:
- {
- png_uint_32 luma = colors[1];
- png_uint_32 x;
-
- for (x=0; x<=size_max; ++x)
- set_value(row, rowbytes, x, bit_depth, luma, gamma_table,
- conv);
- }
- break;
-
- case 2:
- {
- png_uint_32 luma = colors[1];
- png_uint_32 alpha = colors[2];
- png_uint_32 x;
-
- for (x=0; x<size_max; ++x)
- {
- set_value(row, rowbytes, 2*x, bit_depth, luma, gamma_table,
- conv);
- set_value(row, rowbytes, 2*x+1, bit_depth, alpha, gamma_table,
- conv);
- }
- }
- break;
-
- case 3:
- {
- png_uint_32 red = colors[1];
- png_uint_32 green = colors[2];
- png_uint_32 blue = colors[3];
- png_uint_32 x;
-
- for (x=0; x<=size_max; ++x)
- {
- set_value(row, rowbytes, 3*x+0, bit_depth, red, gamma_table,
- conv);
- set_value(row, rowbytes, 3*x+1, bit_depth, green, gamma_table,
- conv);
- set_value(row, rowbytes, 3*x+2, bit_depth, blue, gamma_table,
- conv);
- }
- }
- break;
-
- case 4:
- {
- png_uint_32 red = colors[1];
- png_uint_32 green = colors[2];
- png_uint_32 blue = colors[3];
- png_uint_32 alpha = colors[4];
- png_uint_32 x;
-
- for (x=0; x<=size_max; ++x)
- {
- set_value(row, rowbytes, 4*x+0, bit_depth, red, gamma_table,
- conv);
- set_value(row, rowbytes, 4*x+1, bit_depth, green, gamma_table,
- conv);
- set_value(row, rowbytes, 4*x+2, bit_depth, blue, gamma_table,
- conv);
- set_value(row, rowbytes, 4*x+3, bit_depth, alpha, gamma_table,
- conv);
- }
- }
- break;
-
- default:
- fprintf(stderr, "makepng: internal bad channel count\n");
- exit(2);
- }
-
- else
- {
- fprintf(stderr,
- "makepng: --color: count(%u) does not match channels(%u)\n",
- colors[0], channels_of_type(color_type));
- exit(1);
- }
-
- return filters;
-}
-
-
-static void PNGCBAPI
-makepng_warning(png_structp png_ptr, png_const_charp message)
-{
- const char **ep = png_get_error_ptr(png_ptr);
- const char *name;
-
- if (ep != NULL && *ep != NULL)
- name = *ep;
-
- else
- name = "makepng";
-
- fprintf(stderr, "%s: warning: %s\n", name, message);
-}
-
-static void PNGCBAPI
-makepng_error(png_structp png_ptr, png_const_charp message)
-{
- makepng_warning(png_ptr, message);
- png_longjmp(png_ptr, 1);
-}
-
-static int /* 0 on success, else an error code */
-write_png(const char **name, FILE *fp, int color_type, int bit_depth,
- volatile png_fixed_point gamma, chunk_insert * volatile insert,
- unsigned int filters, unsigned int *colors, int small, int tRNS)
-{
- png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
- name, makepng_error, makepng_warning);
- volatile png_infop info_ptr = NULL;
- volatile png_bytep row = NULL;
-
- if (png_ptr == NULL)
- {
- fprintf(stderr, "makepng: OOM allocating write structure\n");
- return 1;
- }
-
- if (setjmp(png_jmpbuf(png_ptr)))
- {
- png_structp nv_ptr = png_ptr;
- png_infop nv_info = info_ptr;
-
- png_ptr = NULL;
- info_ptr = NULL;
- png_destroy_write_struct(&nv_ptr, &nv_info);
- if (row != NULL) free(row);
- return 1;
- }
-
- /* Allow benign errors so that we can write PNGs with errors */
- png_set_benign_errors(png_ptr, 1/*allowed*/);
-
- /* Max out the text compression level in an attempt to make the license
- * small. If --small then do the same for the IDAT.
- */
- if (small)
- png_set_compression_level(png_ptr, Z_BEST_COMPRESSION);
-
- png_set_text_compression_level(png_ptr, Z_BEST_COMPRESSION);
-
- png_init_io(png_ptr, fp);
-
- info_ptr = png_create_info_struct(png_ptr);
- if (info_ptr == NULL)
- png_error(png_ptr, "OOM allocating info structure");
-
- {
- unsigned int size =
- image_size_of_type(color_type, bit_depth, colors, small);
- unsigned int ysize;
- png_fixed_point real_gamma = 45455; /* For sRGB */
- png_byte gamma_table[256];
- double conv;
-
- /* Normally images are square, but with 'small' we want to simply generate
- * all the pixel values, or all that we reasonably can:
- */
- if (small)
- {
- unsigned int pixel_depth =
- pixel_depth_of_type(color_type, bit_depth);
-
- if (pixel_depth <= 8U)
- {
- assert(size == (1U<<pixel_depth));
- ysize = 1U;
- }
-
- else
- {
- assert(size == 256U);
- ysize = 256U;
- }
- }
-
- else
- ysize = size;
-
- /* This function uses the libpng values used on read to carry extra
- * information about the gamma:
- */
- if (gamma == PNG_GAMMA_MAC_18)
- gamma = 65909;
-
- else if (gamma > 0 && gamma < 1000)
- gamma = PNG_FP_1;
-
- if (gamma > 0)
- real_gamma = gamma;
-
- {
- unsigned int i;
-
- if (real_gamma == 45455) for (i=0; i<256; ++i)
- {
- gamma_table[i] = (png_byte)i;
- conv = 1.;
- }
-
- else
- {
- /* Convert 'i' from sRGB (45455) to real_gamma, this makes
- * the images look the same regardless of the gAMA chunk.
- */
- conv = real_gamma;
- conv /= 45455;
-
- gamma_table[0] = 0;
-
- for (i=1; i<255; ++i)
- gamma_table[i] = floorb(pow(i/255.,conv) * 255 + .5);
-
- gamma_table[255] = 255;
- }
- }
-
- png_set_IHDR(png_ptr, info_ptr, size, ysize, bit_depth, color_type,
- PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
-
- if (color_type & PNG_COLOR_MASK_PALETTE)
- {
- int npalette;
- png_color palette[256];
- png_byte trans[256];
-
- npalette = generate_palette(palette, trans, bit_depth, gamma_table,
- colors);
- png_set_PLTE(png_ptr, info_ptr, palette, npalette);
-
- if (tRNS)
- png_set_tRNS(png_ptr, info_ptr, trans, npalette-1,
- NULL/*transparent color*/);
-
- /* Reset gamma_table to prevent the image rows being changed */
- for (npalette=0; npalette<256; ++npalette)
- gamma_table[npalette] = (png_byte)npalette;
- }
-
- else if (tRNS)
- {
- png_color_16 col;
-
- col.red = col.green = col.blue = col.gray =
- 0x0101U & ((1U<<bit_depth)-1U);
- col.index = 0U;
- png_set_tRNS(png_ptr, info_ptr, NULL/*trans*/, 1U, &col);
- }
-
- if (gamma == PNG_DEFAULT_sRGB)
- png_set_sRGB(png_ptr, info_ptr, PNG_sRGB_INTENT_ABSOLUTE);
-
- else if (gamma > 0) /* Else don't set color space information */
- {
- png_set_gAMA_fixed(png_ptr, info_ptr, real_gamma);
-
- /* Just use the sRGB values here. */
- png_set_cHRM_fixed(png_ptr, info_ptr,
- /* color x y */
- /* white */ 31270, 32900,
- /* red */ 64000, 33000,
- /* green */ 30000, 60000,
- /* blue */ 15000, 6000
- );
- }
-
- /* Insert extra information. */
- while (insert != NULL)
- {
- insert->insert(png_ptr, info_ptr, insert->nparams, insert->parameters);
- insert = insert->next;
- }
-
- /* Write the file header. */
- png_write_info(png_ptr, info_ptr);
-
- /* Restrict the filters */
- png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE, filters);
-
- {
-# ifdef PNG_WRITE_INTERLACING_SUPPORTED
- int passes = png_set_interlace_handling(png_ptr);
-# else /* !WRITE_INTERLACING */
- int passes = 1;
-# endif /* !WRITE_INTERLACING */
- int pass;
- size_t rowbytes = png_get_rowbytes(png_ptr, info_ptr);
-
- row = malloc(rowbytes);
-
- if (row == NULL)
- png_error(png_ptr, "OOM allocating row buffer");
-
- for (pass = 0; pass < passes; ++pass)
- {
- unsigned int y;
-
- for (y=0; y<ysize; ++y)
- {
- unsigned int row_filters =
- generate_row(row, rowbytes, y, color_type, bit_depth,
- gamma_table, conv, colors, small);
-
- if (row_filters != 0 && filters == PNG_ALL_FILTERS)
- png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE, row_filters);
-
- png_write_row(png_ptr, row);
- }
- }
- }
- }
-
- /* Finish writing the file. */
- png_write_end(png_ptr, info_ptr);
-
- {
- png_structp nv_ptr = png_ptr;
- png_infop nv_info = info_ptr;
-
- png_ptr = NULL;
- info_ptr = NULL;
- png_destroy_write_struct(&nv_ptr, &nv_info);
- }
- free(row);
- return 0;
-}
-
-
-static size_t
-load_file(png_const_charp name, png_bytepp result)
-{
- FILE *fp = tmpfile();
-
- if (fp != NULL)
- {
- FILE *ip = fopen(name, "rb");
-
- if (ip != NULL)
- {
- size_t total = 0;
- int ch;
-
- for (;;)
- {
- ch = getc(ip);
- if (ch == EOF) break;
- putc(ch, fp);
- ++total;
- }
-
- if (ferror(ip))
- {
- perror(name);
- fprintf(stderr, "%s: read error\n", name);
- (void)fclose(ip);
- }
-
- else
- {
- (void)fclose(ip);
-
- if (ferror(fp))
- {
- perror("temporary file");
- fprintf(stderr, "temporary file write error\n");
- }
-
- else
- {
- rewind(fp);
-
- if (total > 0)
- {
- /* Round up to a multiple of 4 here to allow an iCCP profile
- * to be padded to a 4x boundary.
- */
- png_bytep data = malloc((total+3)&~3);
-
- if (data != NULL)
- {
- size_t new_size = 0;
-
- for (;;)
- {
- ch = getc(fp);
- if (ch == EOF) break;
- data[new_size++] = (png_byte)ch;
- }
-
- if (ferror(fp) || new_size != total)
- {
- perror("temporary file");
- fprintf(stderr, "temporary file read error\n");
- free(data);
- }
-
- else
- {
- (void)fclose(fp);
- *result = data;
- return total;
- }
- }
-
- else
- fprintf(stderr, "%s: out of memory loading file\n", name);
- }
-
- else
- fprintf(stderr, "%s: empty file\n", name);
- }
- }
- }
-
- else
- {
- perror(name);
- fprintf(stderr, "%s: open failed\n", name);
- }
-
- fclose(fp);
- }
-
- else
- fprintf(stderr, "makepng: %s: could not open temporary file\n", name);
-
- exit(1);
- return 0;
-}
-
-static size_t
-load_fake(png_charp param, png_bytepp profile)
-{
- char *endptr = NULL;
- uint64_t size = strtoull(param, &endptr, 0/*base*/);
-
- /* The 'fake' format is <number>*[string] */
- if (endptr != NULL && *endptr == '*')
- {
- size_t len = strlen(++endptr);
- size_t result = (size_t)size;
-
- if (len == 0) len = 1; /* capture the terminating '\0' */
-
- /* Now repeat that string to fill 'size' bytes. */
- if (result == size && (*profile = malloc(result)) != NULL)
- {
- png_bytep out = *profile;
-
- if (len == 1)
- memset(out, *endptr, result);
-
- else
- {
- while (size >= len)
- {
- memcpy(out, endptr, len);
- out += len;
- size -= len;
- }
- memcpy(out, endptr, size);
- }
-
- return result;
- }
-
- else
- {
- fprintf(stderr, "%s: size exceeds system limits\n", param);
- exit(1);
- }
- }
-
- return 0;
-}
-
-static void
-check_param_count(int nparams, int expect)
-{
- if (nparams != expect)
- {
- fprintf(stderr, "bad parameter count (internal error)\n");
- exit(1);
- }
-}
-
-static void
-insert_iCCP(png_structp png_ptr, png_infop info_ptr, int nparams,
- png_charpp params)
-{
- png_bytep profile = NULL;
- png_uint_32 proflen = 0;
- int result;
-
- check_param_count(nparams, 2);
-
- switch (params[1][0])
- {
- case '<':
- {
- size_t filelen = load_file(params[1]+1, &profile);
- if (filelen > 0xfffffffc) /* Maximum profile length */
- {
- fprintf(stderr, "%s: file too long (%lu) for an ICC profile\n",
- params[1]+1, (unsigned long)filelen);
- exit(1);
- }
-
- proflen = (png_uint_32)filelen;
- }
- break;
-
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- {
- size_t fake_len = load_fake(params[1], &profile);
-
- if (fake_len > 0) /* else a simple parameter */
- {
- if (fake_len > 0xffffffff) /* Maximum profile length */
- {
- fprintf(stderr,
- "%s: fake data too long (%lu) for an ICC profile\n",
- params[1], (unsigned long)fake_len);
- exit(1);
- }
- proflen = (png_uint_32)(fake_len & ~3U);
- /* Always fix up the profile length. */
- png_save_uint_32(profile, proflen);
- break;
- }
- }
-
- default:
- fprintf(stderr, "--insert iCCP \"%s\": unrecognized\n", params[1]);
- fprintf(stderr, " use '<' to read a file: \"<filename\"\n");
- exit(1);
- }
-
- result = 1;
-
- if (proflen & 3)
- {
- fprintf(stderr,
- "makepng: --insert iCCP %s: profile length made a multiple of 4\n",
- params[1]);
-
- /* load_file allocates extra space for this padding, the ICC spec requires
- * padding with zero bytes.
- */
- while (proflen & 3)
- profile[proflen++] = 0;
- }
-
- if (profile != NULL && proflen > 3)
- {
- png_uint_32 prof_header = png_get_uint_32(profile);
-
- if (prof_header != proflen)
- {
- fprintf(stderr, "--insert iCCP %s: profile length field wrong:\n",
- params[1]);
- fprintf(stderr, " actual %lu, recorded value %lu (corrected)\n",
- (unsigned long)proflen, (unsigned long)prof_header);
- png_save_uint_32(profile, proflen);
- }
- }
-
- if (result && profile != NULL && proflen >=4)
- png_set_iCCP(png_ptr, info_ptr, params[0], PNG_COMPRESSION_TYPE_BASE,
- profile, proflen);
-
- if (profile)
- free(profile);
-
- if (!result)
- exit(1);
-}
-
-static void
-clear_text(png_text *text, png_charp keyword)
-{
- text->compression = -1; /* none */
- text->key = keyword;
- text->text = NULL;
- text->text_length = 0; /* libpng calculates this */
- text->itxt_length = 0; /* libpng calculates this */
- text->lang = NULL;
- text->lang_key = NULL;
-}
-
-static void
-set_text(png_structp png_ptr, png_infop info_ptr, png_textp text,
- png_charp param)
-{
- switch (param[0])
- {
- case '<':
- {
- png_bytep file = NULL;
-
- text->text_length = load_file(param+1, &file);
- text->text = (png_charp)file;
- }
- break;
-
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- {
- png_bytep data = NULL;
- size_t fake_len = load_fake(param, &data);
-
- if (fake_len > 0) /* else a simple parameter */
- {
- text->text_length = fake_len;
- text->text = (png_charp)data;
- break;
- }
- }
-
- default:
- text->text = param;
- break;
- }
-
- png_set_text(png_ptr, info_ptr, text, 1);
-
- if (text->text != param)
- free(text->text);
-}
-
-static void
-insert_tEXt(png_structp png_ptr, png_infop info_ptr, int nparams,
- png_charpp params)
-{
- png_text text;
-
- check_param_count(nparams, 2);
- clear_text(&text, params[0]);
- set_text(png_ptr, info_ptr, &text, params[1]);
-}
-
-static void
-insert_zTXt(png_structp png_ptr, png_infop info_ptr, int nparams,
- png_charpp params)
-{
- png_text text;
-
- check_param_count(nparams, 2);
- clear_text(&text, params[0]);
- text.compression = 0; /* deflate */
- set_text(png_ptr, info_ptr, &text, params[1]);
-}
-
-static void
-insert_iTXt(png_structp png_ptr, png_infop info_ptr, int nparams,
- png_charpp params)
-{
- png_text text;
-
- check_param_count(nparams, 4);
- clear_text(&text, params[0]);
- text.compression = 2; /* iTXt + deflate */
- text.lang = params[1];/* language tag */
- text.lang_key = params[2]; /* translated keyword */
- set_text(png_ptr, info_ptr, &text, params[3]);
-}
-
-static void
-insert_hIST(png_structp png_ptr, png_infop info_ptr, int nparams,
- png_charpp params)
-{
- int i;
- png_uint_16 freq[256];
-
- /* libpng takes the count from the PLTE count; we don't check it here but we
- * do set the array to 0 for unspecified entries.
- */
- memset(freq, 0, sizeof freq);
- for (i=0; i<nparams; ++i)
- {
- char *endptr = NULL;
- unsigned long int l = strtoul(params[i], &endptr, 0/*base*/);
-
- if (params[i][0] && *endptr == 0 && l <= 65535)
- freq[i] = (png_uint_16)l;
-
- else
- {
- fprintf(stderr, "hIST[%d]: %s: invalid frequency\n", i, params[i]);
- exit(1);
- }
- }
-
- png_set_hIST(png_ptr, info_ptr, freq);
-}
-
-static png_byte
-bval(png_const_structrp png_ptr, png_charp param, unsigned int maxval)
-{
- char *endptr = NULL;
- unsigned long int l = strtoul(param, &endptr, 0/*base*/);
-
- if (param[0] && *endptr == 0 && l <= maxval)
- return (png_byte)l;
-
- else
- png_error(png_ptr, "sBIT: invalid sBIT value");
-}
-
-static void
-insert_sBIT(png_structp png_ptr, png_infop info_ptr, int nparams,
- png_charpp params)
-{
- int ct = png_get_color_type(png_ptr, info_ptr);
- int c = (ct & PNG_COLOR_MASK_COLOR ? 3 : 1) +
- (ct & PNG_COLOR_MASK_ALPHA ? 1 : 0);
- unsigned int maxval =
- ct & PNG_COLOR_MASK_PALETTE ? 8U : png_get_bit_depth(png_ptr, info_ptr);
- png_color_8 sBIT;
-
- if (nparams != c)
- png_error(png_ptr, "sBIT: incorrect parameter count");
-
- if (ct & PNG_COLOR_MASK_COLOR)
- {
- sBIT.red = bval(png_ptr, params[0], maxval);
- sBIT.green = bval(png_ptr, params[1], maxval);
- sBIT.blue = bval(png_ptr, params[2], maxval);
- sBIT.gray = 42;
- }
-
- else
- {
- sBIT.red = sBIT.green = sBIT.blue = 42;
- sBIT.gray = bval(png_ptr, params[0], maxval);
- }
-
- if (ct & PNG_COLOR_MASK_ALPHA)
- sBIT.alpha = bval(png_ptr, params[nparams-1], maxval);
-
- else
- sBIT.alpha = 42;
-
- png_set_sBIT(png_ptr, info_ptr, &sBIT);
-}
-
-#if 0
-static void
-insert_sPLT(png_structp png_ptr, png_infop info_ptr, int nparams, png_charpp params)
-{
- fprintf(stderr, "insert sPLT: NYI\n");
-}
-#endif
-
-static int
-find_parameters(png_const_charp what, png_charp param, png_charp *list,
- int nparams)
-{
- /* Parameters are separated by '\n' or ':' characters, up to nparams are
- * accepted (more is an error) and the number found is returned.
- */
- int i;
- for (i=0; *param && i<nparams; ++i)
- {
- list[i] = param;
- while (*++param) if (*param == '\n' || *param == ':')
- {
- *param++ = 0; /* Terminate last parameter */
- break; /* And start a new one. */
- }
- }
-
- if (*param)
- {
- fprintf(stderr, "--insert %s: too many parameters (%s)\n", what, param);
- exit(1);
- }
-
- list[i] = NULL; /* terminates list */
- return i; /* number of parameters filled in */
-}
-
-static void
-bad_parameter_count(png_const_charp what, int nparams)
-{
- fprintf(stderr, "--insert %s: bad parameter count %d\n", what, nparams);
- exit(1);
-}
-
-static chunk_insert *
-make_insert(png_const_charp what,
- void (*insert)(png_structp, png_infop, int, png_charpp),
- int nparams, png_charpp list)
-{
- int i;
- chunk_insert *cip;
-
- cip = malloc(offsetof(chunk_insert,parameters) +
- nparams * sizeof (png_charp));
-
- if (cip == NULL)
- {
- fprintf(stderr, "--insert %s: out of memory allocating %d parameters\n",
- what, nparams);
- exit(1);
- }
-
- cip->next = NULL;
- cip->insert = insert;
- cip->nparams = nparams;
- for (i=0; i<nparams; ++i)
- cip->parameters[i] = list[i];
-
- return cip;
-}
-
-static chunk_insert *
-find_insert(png_const_charp what, png_charp param)
-{
- png_uint_32 chunk = 0;
- png_charp parameter_list[1024];
- int i, nparams;
-
- /* Assemble the chunk name */
- for (i=0; i<4; ++i)
- {
- char ch = what[i];
-
- if ((ch >= 65 && ch <= 90) || (ch >= 97 && ch <= 122))
- chunk = (chunk << 8) + what[i];
-
- else
- break;
- }
-
- if (i < 4 || what[4] != 0)
- {
- fprintf(stderr, "makepng --insert \"%s\": invalid chunk name\n", what);
- exit(1);
- }
-
- /* Assemble the parameter list. */
- nparams = find_parameters(what, param, parameter_list, 1024);
-
-# define CHUNK(a,b,c,d) (((a)<<24)+((b)<<16)+((c)<<8)+(d))
-
- switch (chunk)
- {
- case CHUNK(105,67,67,80): /* iCCP */
- if (nparams == 2)
- return make_insert(what, insert_iCCP, nparams, parameter_list);
- break;
-
- case CHUNK(116,69,88,116): /* tEXt */
- if (nparams == 2)
- return make_insert(what, insert_tEXt, nparams, parameter_list);
- break;
-
- case CHUNK(122,84,88,116): /* zTXt */
- if (nparams == 2)
- return make_insert(what, insert_zTXt, nparams, parameter_list);
- break;
-
- case CHUNK(105,84,88,116): /* iTXt */
- if (nparams == 4)
- return make_insert(what, insert_iTXt, nparams, parameter_list);
- break;
-
- case CHUNK(104,73,83,84): /* hIST */
- if (nparams <= 256)
- return make_insert(what, insert_hIST, nparams, parameter_list);
- break;
-
- case CHUNK(115,66,73,84): /* sBIT */
- if (nparams <= 4)
- return make_insert(what, insert_sBIT, nparams, parameter_list);
- break;
-
-#if 0
- case CHUNK(115,80,76,84): /* sPLT */
- return make_insert(what, insert_sPLT, nparams, parameter_list);
-#endif
-
- default:
- fprintf(stderr, "makepng --insert \"%s\": unrecognized chunk name\n",
- what);
- exit(1);
- }
-
- bad_parameter_count(what, nparams);
- return NULL;
-}
-
-/* This is necessary because libpng expects writeable strings for things like
- * text chunks (maybe this should be fixed...)
- */
-static png_charp
-strstash(png_const_charp foo)
-{
- /* The program indicates a memory allocation error by crashing, this is by
- * design.
- */
- if (foo != NULL)
- {
- png_charp bar = malloc(strlen(foo)+1);
- return strcpy(bar, foo);
- }
-
- return NULL;
-}
-
-static png_charp
-strstash_list(const png_const_charp *text)
-{
- size_t foo = 0;
- png_charp result, bar;
- const png_const_charp *line = text;
-
- while (*line != NULL)
- foo += strlen(*line++);
-
- result = bar = malloc(foo+1);
-
- line = text;
- while (*line != NULL)
- {
- foo = strlen(*line);
- memcpy(bar, *line++, foo);
- bar += foo;
- }
-
- *bar = 0;
- return result;
-}
-
-/* These are used to insert Copyright and Licence fields, they allow the text to
- * have \n unlike the --insert option.
- */
-static chunk_insert *
-add_tEXt(const char *key, const png_const_charp *text)
-{
- static char what[5] = { 116, 69, 88, 116, 0 };
- png_charp parameter_list[3];
-
- parameter_list[0] = strstash(key);
- parameter_list[1] = strstash_list(text);
- parameter_list[2] = NULL;
-
- return make_insert(what, insert_tEXt, 2, parameter_list);
-}
-
-static chunk_insert *
-add_iTXt(const char *key, const char *language, const char *language_key,
- const png_const_charp *text)
-{
- static char what[5] = { 105, 84, 88, 116, 0 };
- png_charp parameter_list[5];
-
- parameter_list[0] = strstash(key);
- parameter_list[1] = strstash(language);
- parameter_list[2] = strstash(language_key);
- parameter_list[3] = strstash_list(text);
- parameter_list[4] = NULL;
-
- return make_insert(what, insert_iTXt, 4, parameter_list);
-}
-
-/* This is a not-very-good parser for a sequence of numbers (including 0). It
- * doesn't accept some apparently valid things, but it accepts all the sensible
- * combinations.
- */
-static void
-parse_color(char *arg, unsigned int *colors)
-{
- unsigned int ncolors = 0;
-
- while (*arg && ncolors < 4)
- {
- char *ep = arg;
-
- unsigned long ul = strtoul(arg, &ep, 0);
-
- if (ul > 65535)
- {
- fprintf(stderr, "makepng --color=...'%s': too big\n", arg);
- exit(1);
- }
-
- if (ep == arg)
- {
- fprintf(stderr, "makepng --color=...'%s': not a valid color\n", arg);
- exit(1);
- }
-
- if (*ep) ++ep; /* skip a separator */
- arg = ep;
-
- colors[++ncolors] = (unsigned int)ul; /* checked above */
- }
-
- if (*arg)
- {
- fprintf(stderr, "makepng --color=...'%s': too many values\n", arg);
- exit(1);
- }
-
- *colors = ncolors;
-}
-
-int
-main(int argc, char **argv)
-{
- FILE *fp = stdout;
- const char *file_name = NULL;
- int color_type = 8; /* invalid */
- int bit_depth = 32; /* invalid */
- int small = 0; /* make full size images */
- int tRNS = 0; /* don't output a tRNS chunk */
- unsigned int colors[5];
- unsigned int filters = PNG_ALL_FILTERS;
- png_fixed_point gamma = 0; /* not set */
- chunk_insert *head_insert = NULL;
- chunk_insert **insert_ptr = &head_insert;
-
- memset(colors, 0, sizeof colors);
-
- while (--argc > 0)
- {
- char *arg = *++argv;
-
- if (strcmp(arg, "--small") == 0)
- {
- small = 1;
- continue;
- }
-
- if (strcmp(arg, "--tRNS") == 0)
- {
- tRNS = 1;
- continue;
- }
-
- if (strcmp(arg, "--sRGB") == 0)
- {
- gamma = PNG_DEFAULT_sRGB;
- continue;
- }
-
- if (strcmp(arg, "--linear") == 0)
- {
- gamma = PNG_FP_1;
- continue;
- }
-
- if (strcmp(arg, "--1.8") == 0)
- {
- gamma = PNG_GAMMA_MAC_18;
- continue;
- }
-
- if (strcmp(arg, "--nofilters") == 0)
- {
- filters = PNG_FILTER_NONE;
- continue;
- }
-
- if (strncmp(arg, "--color=", 8) == 0)
- {
- parse_color(arg+8, colors);
- continue;
- }
-
- if (argc >= 3 && strcmp(arg, "--insert") == 0)
- {
- png_const_charp what = *++argv;
- png_charp param = *++argv;
- chunk_insert *new_insert;
-
- argc -= 2;
-
- new_insert = find_insert(what, param);
-
- if (new_insert != NULL)
- {
- *insert_ptr = new_insert;
- insert_ptr = &new_insert->next;
- }
-
- continue;
- }
-
- if (arg[0] == '-')
- {
- fprintf(stderr, "makepng: %s: invalid option\n", arg);
- exit(1);
- }
-
- if (strcmp(arg, "palette") == 0)
- {
- color_type = PNG_COLOR_TYPE_PALETTE;
- continue;
- }
-
- if (strncmp(arg, "gray", 4) == 0)
- {
- if (arg[4] == 0)
- {
- color_type = PNG_COLOR_TYPE_GRAY;
- continue;
- }
-
- else if (strcmp(arg+4, "a") == 0 ||
- strcmp(arg+4, "alpha") == 0 ||
- strcmp(arg+4, "-alpha") == 0)
- {
- color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
- continue;
- }
- }
-
- if (strncmp(arg, "rgb", 3) == 0)
- {
- if (arg[3] == 0)
- {
- color_type = PNG_COLOR_TYPE_RGB;
- continue;
- }
-
- else if (strcmp(arg+3, "a") == 0 ||
- strcmp(arg+3, "alpha") == 0 ||
- strcmp(arg+3, "-alpha") == 0)
- {
- color_type = PNG_COLOR_TYPE_RGB_ALPHA;
- continue;
- }
- }
-
- if (color_type == 8 && isdigit(arg[0]))
- {
- color_type = atoi(arg);
- if (color_type < 0 || color_type > 6 || color_type == 1 ||
- color_type == 5)
- {
- fprintf(stderr, "makepng: %s: not a valid color type\n", arg);
- exit(1);
- }
-
- continue;
- }
-
- if (bit_depth == 32 && isdigit(arg[0]))
- {
- bit_depth = atoi(arg);
- if (bit_depth <= 0 || bit_depth > 16 ||
- (bit_depth & -bit_depth) != bit_depth)
- {
- fprintf(stderr, "makepng: %s: not a valid bit depth\n", arg);
- exit(1);
- }
-
- continue;
- }
-
- if (argc == 1) /* It's the file name */
- {
- fp = fopen(arg, "wb");
- if (fp == NULL)
- {
- fprintf(stderr, "%s: %s: could not open\n", arg, strerror(errno));
- exit(1);
- }
-
- file_name = arg;
- continue;
- }
-
- fprintf(stderr, "makepng: %s: unknown argument\n", arg);
- exit(1);
- } /* argument while loop */
-
- if (color_type == 8 || bit_depth == 32)
- {
- fprintf(stderr, "usage: makepng [--small] [--sRGB|--linear|--1.8] "
- "[--color=...] color-type bit-depth [file-name]\n"
- " Make a test PNG file, by default writes to stdout.\n"
- " Other options are available, UTSL.\n");
- exit(1);
- }
-
- /* Check the colors */
- {
- unsigned int lim = (color_type == PNG_COLOR_TYPE_PALETTE ? 255U :
- (1U<<bit_depth)-1);
- unsigned int i;
-
- for (i=1; i<=colors[0]; ++i)
- if (colors[i] > lim)
- {
- fprintf(stderr, "makepng: --color=...: %u out of range [0..%u]\n",
- colors[i], lim);
- exit(1);
- }
- }
-
- /* small and colors are incomparible (will probably crash if both are used at
- * the same time!)
- */
- if (small && colors[0] != 0)
- {
- fprintf(stderr, "makepng: --color --small: only one at a time!\n");
- exit(1);
- }
-
- /* Restrict the filters for more speed to those we know are used for the
- * generated images.
- */
- if (filters == PNG_ALL_FILTERS && !small/*small provides defaults*/)
- {
- if ((color_type & PNG_COLOR_MASK_PALETTE) != 0 || bit_depth < 8)
- filters = PNG_FILTER_NONE;
-
- else if (color_type & PNG_COLOR_MASK_COLOR) /* rgb */
- {
- if (bit_depth == 8)
- filters &= ~(PNG_FILTER_NONE | PNG_FILTER_AVG);
-
- else
- filters = PNG_FILTER_SUB | PNG_FILTER_PAETH;
- }
-
- else /* gray 8 or 16-bit */
- filters &= ~PNG_FILTER_NONE;
- }
-
- /* Insert standard copyright and licence text. */
- {
- static png_const_charp copyright[] =
- {
- COPYRIGHT, /* ISO-Latin-1 */
- NULL
- };
- static png_const_charp licensing[] =
- {
- IMAGE_LICENSING, /* UTF-8 */
- NULL
- };
-
- chunk_insert *new_insert;
-
- new_insert = add_tEXt("Copyright", copyright);
- if (new_insert != NULL)
- {
- *insert_ptr = new_insert;
- insert_ptr = &new_insert->next;
- }
-
- new_insert = add_iTXt("Licensing", "en", NULL, licensing);
- if (new_insert != NULL)
- {
- *insert_ptr = new_insert;
- insert_ptr = &new_insert->next;
- }
- }
-
- {
- int ret = write_png(&file_name, fp, color_type, bit_depth, gamma,
- head_insert, filters, colors, small, tRNS);
-
- if (ret != 0 && file_name != NULL)
- remove(file_name);
-
- return ret;
- }
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngimage.c b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngimage.c
deleted file mode 100644
index f130c04..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngimage.c
+++ /dev/null
@@ -1,1712 +0,0 @@
-/* pngimage.c
- *
- * Copyright (c) 2015,2016 John Cunningham Bowler
- *
- * Last changed in libpng 1.6.24 [August 4, 2016]
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Test the png_read_png and png_write_png interfaces. Given a PNG file load it
- * using png_read_png and then write with png_write_png. Test all possible
- * transforms.
- */
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <stdio.h>
-#include <assert.h>
-
-#if defined(HAVE_CONFIG_H) && !defined(PNG_NO_CONFIG_H)
-# include <config.h>
-#endif
-
-/* Define the following to use this test against your installed libpng, rather
- * than the one being built here:
- */
-#ifdef PNG_FREESTANDING_TESTS
-# include <png.h>
-#else
-# include "../../png.h"
-#endif
-
-#ifndef PNG_SETJMP_SUPPORTED
-# include <setjmp.h> /* because png.h did *not* include this */
-#endif
-
-/* 1.6.1 added support for the configure test harness, which uses 77 to indicate
- * a skipped test, in earlier versions we need to succeed on a skipped test, so:
- */
-#if PNG_LIBPNG_VER >= 10601 && defined(HAVE_CONFIG_H)
-# define SKIP 77
-#else
-# define SKIP 0
-#endif
-
-#if PNG_LIBPNG_VER < 10700
- /* READ_PNG and WRITE_PNG were not defined, so: */
-# ifdef PNG_INFO_IMAGE_SUPPORTED
-# ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-# define PNG_READ_PNG_SUPPORTED
-# endif /* SEQUENTIAL_READ */
-# ifdef PNG_WRITE_SUPPORTED
-# define PNG_WRITE_PNG_SUPPORTED
-# endif /* WRITE */
-# endif /* INFO_IMAGE */
-#endif /* pre 1.7.0 */
-
-#ifdef PNG_READ_PNG_SUPPORTED
-/* If a transform is valid on both read and write this implies that if the
- * transform is applied to read it must also be applied on write to produce
- * meaningful data. This is because these transforms when performed on read
- * produce data with a memory format that does not correspond to a PNG format.
- *
- * Most of these transforms are invertible; after applying the transform on
- * write the result is the original PNG data that would have would have been
- * read if no transform were applied.
- *
- * The exception is _SHIFT, which destroys the low order bits marked as not
- * significant in a PNG with the sBIT chunk.
- *
- * The following table lists, for each transform, the conditions under which it
- * is expected to do anything. Conditions are defined as follows:
- *
- * 1) Color mask bits required - simply a mask to AND with color_type; one of
- * these must be present for the transform to fire, except that 0 means
- * 'always'.
- * 2) Color mask bits which must be absent - another mask - none of these must
- * be present.
- * 3) Bit depths - a mask of component bit depths for the transform to fire.
- * 4) 'read' - the transform works in png_read_png.
- * 5) 'write' - the transform works in png_write_png.
- * 6) PNG_INFO_chunk; a mask of the chunks that must be present for the
- * transform to fire. All must be present - the requirement is that
- * png_get_valid() & mask == mask, so if mask is 0 there is no requirement.
- *
- * The condition refers to the original image state - if multiple transforms are
- * used together it is possible to cause a transform that wouldn't fire on the
- * original image to fire.
- */
-static struct transform_info
-{
- const char *name;
- int transform;
- png_uint_32 valid_chunks;
-# define CHUNK_NONE 0
-# define CHUNK_sBIT PNG_INFO_sBIT
-# define CHUNK_tRNS PNG_INFO_tRNS
- png_byte color_mask_required;
- png_byte color_mask_absent;
-# define COLOR_MASK_X 0
-# define COLOR_MASK_P PNG_COLOR_MASK_PALETTE
-# define COLOR_MASK_C PNG_COLOR_MASK_COLOR
-# define COLOR_MASK_A PNG_COLOR_MASK_ALPHA
-# define COLOR_MASK_ALL (PALETTE+COLOR+ALPHA) /* absent = gray, no alpha */
- png_byte bit_depths;
-# define BD_ALL (1 + 2 + 4 + 8 + 16)
-# define BD_PAL (1 + 2 + 4 + 8)
-# define BD_LOW (1 + 2 + 4)
-# define BD_16 16
-# define BD_TRUE (8+16) /* i.e. true-color depths */
- png_byte when;
-# define TRANSFORM_R 1
-# define TRANSFORM_W 2
-# define TRANSFORM_RW 3
- png_byte tested; /* the transform was tested somewhere */
-} transform_info[] =
-{
- /* List ALL the PNG_TRANSFORM_ macros here. Check for support using the READ
- * macros; even if the transform is supported on write it cannot be tested
- * without the read support.
- */
-# define T(name,chunk,cm_required,cm_absent,bd,when)\
- { #name, PNG_TRANSFORM_ ## name, CHUNK_ ## chunk,\
- COLOR_MASK_ ## cm_required, COLOR_MASK_ ## cm_absent, BD_ ## bd,\
- TRANSFORM_ ## when, 0/*!tested*/ }
-
-#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
- T(STRIP_16, NONE, X, X, 16, R),
- /* drops the bottom 8 bits when bit depth is 16 */
-#endif
-#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
- T(STRIP_ALPHA, NONE, A, X, ALL, R),
- /* removes the alpha channel if present */
-#endif
-#ifdef PNG_WRITE_PACK_SUPPORTED
-# define TRANSFORM_RW_PACK TRANSFORM_RW
-#else
-# define TRANSFORM_RW_PACK TRANSFORM_R
-#endif
-#ifdef PNG_READ_PACK_SUPPORTED
- T(PACKING, NONE, X, X, LOW, RW_PACK),
- /* unpacks low-bit-depth components into 1 byte per component on read,
- * reverses this on write.
- */
-#endif
-#ifdef PNG_WRITE_PACKSWAP_SUPPORTED
-# define TRANSFORM_RW_PACKSWAP TRANSFORM_RW
-#else
-# define TRANSFORM_RW_PACKSWAP TRANSFORM_R
-#endif
-#ifdef PNG_READ_PACKSWAP_SUPPORTED
- T(PACKSWAP, NONE, X, X, LOW, RW_PACKSWAP),
- /* reverses the order of low-bit-depth components packed into a byte */
-#endif
-#ifdef PNG_READ_EXPAND_SUPPORTED
- T(EXPAND, NONE, P, X, ALL, R),
- /* expands PLTE PNG files to RGB (no tRNS) or RGBA (tRNS) *
- * Note that the 'EXPAND' transform does lots of different things: */
- T(EXPAND, NONE, X, C, ALL, R),
- /* expands grayscale PNG files to RGB, or RGBA */
- T(EXPAND, tRNS, X, A, ALL, R),
- /* expands the tRNS chunk in files without alpha */
-#endif
-#ifdef PNG_WRITE_INVERT_SUPPORTED
-# define TRANSFORM_RW_INVERT TRANSFORM_RW
-#else
-# define TRANSFORM_RW_INVERT TRANSFORM_R
-#endif
-#ifdef PNG_READ_INVERT_SUPPORTED
- T(INVERT_MONO, NONE, X, C, ALL, RW_INVERT),
- /* converts gray-scale components to 1..0 from 0..1 */
-#endif
-#ifdef PNG_WRITE_SHIFT_SUPPORTED
-# define TRANSFORM_RW_SHIFT TRANSFORM_RW
-#else
-# define TRANSFORM_RW_SHIFT TRANSFORM_R
-#endif
-#ifdef PNG_READ_SHIFT_SUPPORTED
- T(SHIFT, sBIT, X, X, ALL, RW_SHIFT),
- /* reduces component values to the original range based on the sBIT chunk,
- * this is only partially reversible - the low bits are lost and cannot be
- * recovered on write. In fact write code replicates the bits to generate
- * new low-order bits.
- */
-#endif
-#ifdef PNG_WRITE_BGR_SUPPORTED
-# define TRANSFORM_RW_BGR TRANSFORM_RW
-#else
-# define TRANSFORM_RW_BGR TRANSFORM_R
-#endif
-#ifdef PNG_READ_BGR_SUPPORTED
- T(BGR, NONE, C, P, TRUE, RW_BGR),
- /* reverses the rgb component values of true-color pixels */
-#endif
-#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED
-# define TRANSFORM_RW_SWAP_ALPHA TRANSFORM_RW
-#else
-# define TRANSFORM_RW_SWAP_ALPHA TRANSFORM_R
-#endif
-#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED
- T(SWAP_ALPHA, NONE, A, X, TRUE, RW_SWAP_ALPHA),
- /* swaps the alpha channel of RGBA or GA pixels to the front - ARGB or
- * AG, on write reverses the process.
- */
-#endif
-#ifdef PNG_WRITE_SWAP_SUPPORTED
-# define TRANSFORM_RW_SWAP TRANSFORM_RW
-#else
-# define TRANSFORM_RW_SWAP TRANSFORM_R
-#endif
-#ifdef PNG_READ_SWAP_SUPPORTED
- T(SWAP_ENDIAN, NONE, X, P, 16, RW_SWAP),
- /* byte-swaps 16-bit component values */
-#endif
-#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED
-# define TRANSFORM_RW_INVERT_ALPHA TRANSFORM_RW
-#else
-# define TRANSFORM_RW_INVERT_ALPHA TRANSFORM_R
-#endif
-#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
- T(INVERT_ALPHA, NONE, A, X, TRUE, RW_INVERT_ALPHA),
- /* converts an alpha channel from 0..1 to 1..0 */
-#endif
-#ifdef PNG_WRITE_FILLER_SUPPORTED
- T(STRIP_FILLER_BEFORE, NONE, A, P, TRUE, W), /* 'A' for a filler! */
- /* on write skips a leading filler channel; testing requires data with a
- * filler channel so this is produced from RGBA or GA images by removing
- * the 'alpha' flag from the color type in place.
- */
- T(STRIP_FILLER_AFTER, NONE, A, P, TRUE, W),
- /* on write strips a trailing filler channel */
-#endif
-#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
- T(GRAY_TO_RGB, NONE, X, C, ALL, R),
- /* expands grayscale images to RGB, also causes the palette part of
- * 'EXPAND' to happen. Low bit depth grayscale images are expanded to
- * 8-bits per component and no attempt is made to convert the image to a
- * palette image. While this transform is partially reversible
- * png_write_png does not currently support this.
- */
- T(GRAY_TO_RGB, NONE, P, X, ALL, R),
- /* The 'palette' side effect mentioned above; a bit bogus but this is the
- * way the libpng code works.
- */
-#endif
-#ifdef PNG_READ_EXPAND_16_SUPPORTED
- T(EXPAND_16, NONE, X, X, PAL, R),
- /* expands images to 16-bits per component, as a side effect expands
- * palette images to RGB and expands the tRNS chunk if present, so it can
- * modify 16-bit per component images as well:
- */
- T(EXPAND_16, tRNS, X, A, 16, R),
- /* side effect of EXPAND_16 - expands the tRNS chunk in an RGB or G 16-bit
- * image.
- */
-#endif
-#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
- T(SCALE_16, NONE, X, X, 16, R),
- /* scales 16-bit components to 8-bits. */
-#endif
-
- { NULL /*name*/, 0, 0, 0, 0, 0, 0, 0/*!tested*/ }
-
-#undef T
-};
-
-#define ARRAY_SIZE(a) ((sizeof a)/(sizeof a[0]))
-#define TTABLE_SIZE ARRAY_SIZE(transform_info)
-
-/* Some combinations of options that should be reversible are not; these cases
- * are bugs.
- */
-static int known_bad_combos[][2] =
-{
- /* problem, antidote */
- { PNG_TRANSFORM_SHIFT | PNG_TRANSFORM_INVERT_ALPHA, 0/*antidote*/ }
-};
-
-static int
-is_combo(int transforms)
-{
- return transforms & (transforms-1); /* non-zero if more than one set bit */
-}
-
-static int
-first_transform(int transforms)
-{
- return transforms & -transforms; /* lowest set bit */
-}
-
-static int
-is_bad_combo(int transforms)
-{
- unsigned int i;
-
- for (i=0; i<ARRAY_SIZE(known_bad_combos); ++i)
- {
- int combo = known_bad_combos[i][0];
-
- if ((combo & transforms) == combo &&
- (transforms & known_bad_combos[i][1]) == 0)
- return 1;
- }
-
- return 0; /* combo is ok */
-}
-
-static const char *
-transform_name(int t)
- /* The name, if 't' has multiple bits set the name of the lowest set bit is
- * returned.
- */
-{
- unsigned int i;
-
- t &= -t; /* first set bit */
-
- for (i=0; i<TTABLE_SIZE; ++i) if (transform_info[i].name != NULL)
- {
- if ((transform_info[i].transform & t) != 0)
- return transform_info[i].name;
- }
-
- return "invalid transform";
-}
-
-/* Variables calculated by validate_T below and used to record all the supported
- * transforms. Need (unsigned int) here because of the places where these
- * values are used (unsigned compares in the 'exhaustive' iterator.)
- */
-static unsigned int read_transforms, write_transforms, rw_transforms;
-
-static void
-validate_T(void)
- /* Validate the above table - this just builds the above values */
-{
- unsigned int i;
-
- for (i=0; i<TTABLE_SIZE; ++i) if (transform_info[i].name != NULL)
- {
- if (transform_info[i].when & TRANSFORM_R)
- read_transforms |= transform_info[i].transform;
-
- if (transform_info[i].when & TRANSFORM_W)
- write_transforms |= transform_info[i].transform;
- }
-
- /* Reversible transforms are those which are supported on both read and
- * write.
- */
- rw_transforms = read_transforms & write_transforms;
-}
-
-/* FILE DATA HANDLING
- * The original file is cached in memory. During write the output file is
- * written to memory.
- *
- * In both cases the file data is held in a linked list of buffers - not all
- * of these are in use at any time.
- */
-#define NEW(type) ((type *)malloc(sizeof (type)))
-#define DELETE(ptr) (free(ptr))
-
-struct buffer_list
-{
- struct buffer_list *next; /* next buffer in list */
- png_byte buffer[1024]; /* the actual buffer */
-};
-
-struct buffer
-{
- struct buffer_list *last; /* last buffer in use */
- size_t end_count; /* bytes in the last buffer */
- struct buffer_list *current; /* current buffer being read */
- size_t read_count; /* count of bytes read from current */
- struct buffer_list first; /* the very first buffer */
-};
-
-static void
-buffer_init(struct buffer *buffer)
- /* Call this only once for a given buffer */
-{
- buffer->first.next = NULL;
- buffer->last = NULL;
- buffer->current = NULL;
-}
-
-static void
-buffer_destroy_list(struct buffer_list *list)
-{
- if (list != NULL)
- {
- struct buffer_list *next = list->next;
- DELETE(list);
- buffer_destroy_list(next);
- }
-}
-
-static void
-buffer_destroy(struct buffer *buffer)
-{
- struct buffer_list *list = buffer->first.next;
- buffer_init(buffer);
- buffer_destroy_list(list);
-}
-
-#ifdef PNG_WRITE_PNG_SUPPORTED
-static void
-buffer_start_write(struct buffer *buffer)
-{
- buffer->last = &buffer->first;
- buffer->end_count = 0;
- buffer->current = NULL;
-}
-#endif
-
-static void
-buffer_start_read(struct buffer *buffer)
-{
- buffer->current = &buffer->first;
- buffer->read_count = 0;
-}
-
-#ifdef ENOMEM /* required by POSIX 1003.1 */
-# define MEMORY ENOMEM
-#else
-# define MEMORY ERANGE /* required by ANSI-C */
-#endif
-static struct buffer *
-get_buffer(png_structp pp)
- /* Used from libpng callbacks to get the current buffer */
-{
- return (struct buffer*)png_get_io_ptr(pp);
-}
-
-static struct buffer_list *
-buffer_extend(struct buffer_list *current)
-{
- struct buffer_list *add;
-
- assert(current->next == NULL);
-
- add = NEW(struct buffer_list);
- if (add == NULL)
- return NULL;
-
- add->next = NULL;
- current->next = add;
-
- return add;
-}
-
-/* Load a buffer from a file; does the equivalent of buffer_start_write. On a
- * read error returns an errno value, else returns 0.
- */
-static int
-buffer_from_file(struct buffer *buffer, FILE *fp)
-{
- struct buffer_list *last = &buffer->first;
- size_t count = 0;
-
- for (;;)
- {
- size_t r = fread(last->buffer+count, 1/*size*/,
- (sizeof last->buffer)-count, fp);
-
- if (r > 0)
- {
- count += r;
-
- if (count >= sizeof last->buffer)
- {
- assert(count == sizeof last->buffer);
- count = 0;
-
- if (last->next == NULL)
- {
- last = buffer_extend(last);
- if (last == NULL)
- return MEMORY;
- }
-
- else
- last = last->next;
- }
- }
-
- else /* fread failed - probably end of file */
- {
- if (feof(fp))
- {
- buffer->last = last;
- buffer->end_count = count;
- return 0; /* no error */
- }
-
- /* Some kind of funky error; errno should be non-zero */
- return errno == 0 ? ERANGE : errno;
- }
- }
-}
-
-/* This structure is used to control the test of a single file. */
-typedef enum
-{
- VERBOSE, /* switches on all messages */
- INFORMATION,
- WARNINGS, /* switches on warnings */
- LIBPNG_WARNING,
- APP_WARNING,
- ERRORS, /* just errors */
- APP_FAIL, /* continuable error - no need to longjmp */
- LIBPNG_ERROR, /* this and higher cause a longjmp */
- LIBPNG_BUG, /* erroneous behavior in libpng */
- APP_ERROR, /* such as out-of-memory in a callback */
- QUIET, /* no normal messages */
- USER_ERROR, /* such as file-not-found */
- INTERNAL_ERROR
-} error_level;
-#define LEVEL_MASK 0xf /* where the level is in 'options' */
-
-#define EXHAUSTIVE 0x010 /* Test all combinations of active options */
-#define STRICT 0x020 /* Fail on warnings as well as errors */
-#define LOG 0x040 /* Log pass/fail to stdout */
-#define CONTINUE 0x080 /* Continue on APP_FAIL errors */
-#define SKIP_BUGS 0x100 /* Skip over known bugs */
-#define LOG_SKIPPED 0x200 /* Log skipped bugs */
-#define FIND_BAD_COMBOS 0x400 /* Attempt to deduce bad combos */
-#define LIST_COMBOS 0x800 /* List combos by name */
-
-/* Result masks apply to the result bits in the 'results' field below; these
- * bits are simple 1U<<error_level. A pass requires either nothing worse than
- * warnings (--relaxes) or nothing worse than information (--strict)
- */
-#define RESULT_STRICT(r) (((r) & ~((1U<<WARNINGS)-1)) == 0)
-#define RESULT_RELAXED(r) (((r) & ~((1U<<ERRORS)-1)) == 0)
-
-struct display
-{
- jmp_buf error_return; /* Where to go to on error */
-
- const char *filename; /* The name of the original file */
- const char *operation; /* Operation being performed */
- int transforms; /* Transform used in operation */
- png_uint_32 options; /* See display_log below */
- png_uint_32 results; /* A mask of errors seen */
-
-
- png_structp original_pp; /* used on the original read */
- png_infop original_ip; /* set by the original read */
-
- size_t original_rowbytes; /* of the original rows: */
- png_bytepp original_rows; /* from the original read */
-
- /* Original chunks valid */
- png_uint_32 chunks;
-
- /* Original IHDR information */
- png_uint_32 width;
- png_uint_32 height;
- int bit_depth;
- int color_type;
- int interlace_method;
- int compression_method;
- int filter_method;
-
- /* Derived information for the original image. */
- int active_transforms; /* transforms that do something on read */
- int ignored_transforms; /* transforms that should do nothing */
-
- /* Used on a read, both the original read and when validating a written
- * image.
- */
- png_structp read_pp;
- png_infop read_ip;
-
-# ifdef PNG_WRITE_PNG_SUPPORTED
- /* Used to write a new image (the original info_ptr is used) */
- png_structp write_pp;
- struct buffer written_file; /* where the file gets written */
-# endif
-
- struct buffer original_file; /* Data read from the original file */
-};
-
-static void
-display_init(struct display *dp)
- /* Call this only once right at the start to initialize the control
- * structure, the (struct buffer) lists are maintained across calls - the
- * memory is not freed.
- */
-{
- memset(dp, 0, sizeof *dp);
- dp->options = WARNINGS; /* default to !verbose, !quiet */
- dp->filename = NULL;
- dp->operation = NULL;
- dp->original_pp = NULL;
- dp->original_ip = NULL;
- dp->original_rows = NULL;
- dp->read_pp = NULL;
- dp->read_ip = NULL;
- buffer_init(&dp->original_file);
-
-# ifdef PNG_WRITE_PNG_SUPPORTED
- dp->write_pp = NULL;
- buffer_init(&dp->written_file);
-# endif
-}
-
-static void
-display_clean_read(struct display *dp)
-{
- if (dp->read_pp != NULL)
- png_destroy_read_struct(&dp->read_pp, &dp->read_ip, NULL);
-}
-
-#ifdef PNG_WRITE_PNG_SUPPORTED
-static void
-display_clean_write(struct display *dp)
-{
- if (dp->write_pp != NULL)
- png_destroy_write_struct(&dp->write_pp, NULL);
-}
-#endif
-
-static void
-display_clean(struct display *dp)
-{
-# ifdef PNG_WRITE_PNG_SUPPORTED
- display_clean_write(dp);
-# endif
- display_clean_read(dp);
-
- dp->original_rowbytes = 0;
- dp->original_rows = NULL;
- dp->chunks = 0;
-
- png_destroy_read_struct(&dp->original_pp, &dp->original_ip, NULL);
- /* leave the filename for error detection */
- dp->results = 0; /* reset for next time */
-}
-
-static void
-display_destroy(struct display *dp)
-{
- /* Release any memory held in the display. */
-# ifdef PNG_WRITE_PNG_SUPPORTED
- buffer_destroy(&dp->written_file);
-# endif
-
- buffer_destroy(&dp->original_file);
-}
-
-static struct display *
-get_dp(png_structp pp)
- /* The display pointer is always stored in the png_struct error pointer */
-{
- struct display *dp = (struct display*)png_get_error_ptr(pp);
-
- if (dp == NULL)
- {
- fprintf(stderr, "pngimage: internal error (no display)\n");
- exit(99); /* prevents a crash */
- }
-
- return dp;
-}
-
-/* error handling */
-#ifdef __GNUC__
-# define VGATTR __attribute__((__format__ (__printf__,3,4)))
- /* Required to quiet GNUC warnings when the compiler sees a stdarg function
- * that calls one of the stdio v APIs.
- */
-#else
-# define VGATTR
-#endif
-static void VGATTR
-display_log(struct display *dp, error_level level, const char *fmt, ...)
- /* 'level' is as above, fmt is a stdio style format string. This routine
- * does not return if level is above LIBPNG_WARNING
- */
-{
- dp->results |= 1U << level;
-
- if (level > (error_level)(dp->options & LEVEL_MASK))
- {
- const char *lp;
- va_list ap;
-
- switch (level)
- {
- case INFORMATION: lp = "information"; break;
- case LIBPNG_WARNING: lp = "warning(libpng)"; break;
- case APP_WARNING: lp = "warning(pngimage)"; break;
- case APP_FAIL: lp = "error(continuable)"; break;
- case LIBPNG_ERROR: lp = "error(libpng)"; break;
- case LIBPNG_BUG: lp = "bug(libpng)"; break;
- case APP_ERROR: lp = "error(pngimage)"; break;
- case USER_ERROR: lp = "error(user)"; break;
-
- case INTERNAL_ERROR: /* anything unexpected is an internal error: */
- case VERBOSE: case WARNINGS: case ERRORS: case QUIET:
- default: lp = "bug(pngimage)"; break;
- }
-
- fprintf(stderr, "%s: %s: %s",
- dp->filename != NULL ? dp->filename : "<stdin>", lp, dp->operation);
-
- if (dp->transforms != 0)
- {
- int tr = dp->transforms;
-
- if (is_combo(tr))
- {
- if (dp->options & LIST_COMBOS)
- {
- int trx = tr;
-
- fprintf(stderr, "(");
- if (trx)
- {
- int start = 0;
-
- while (trx)
- {
- int trz = trx & -trx;
-
- if (start) fprintf(stderr, "+");
- fprintf(stderr, "%s", transform_name(trz));
- start = 1;
- trx &= ~trz;
- }
- }
-
- else
- fprintf(stderr, "-");
- fprintf(stderr, ")");
- }
-
- else
- fprintf(stderr, "(0x%x)", tr);
- }
-
- else
- fprintf(stderr, "(%s)", transform_name(tr));
- }
-
- fprintf(stderr, ": ");
-
- va_start(ap, fmt);
- vfprintf(stderr, fmt, ap);
- va_end(ap);
-
- fputc('\n', stderr);
- }
- /* else do not output any message */
-
- /* Errors cause this routine to exit to the fail code */
- if (level > APP_FAIL || (level > ERRORS && !(dp->options & CONTINUE)))
- longjmp(dp->error_return, level);
-}
-
-/* error handler callbacks for libpng */
-static void PNGCBAPI
-display_warning(png_structp pp, png_const_charp warning)
-{
- display_log(get_dp(pp), LIBPNG_WARNING, "%s", warning);
-}
-
-static void PNGCBAPI
-display_error(png_structp pp, png_const_charp error)
-{
- struct display *dp = get_dp(pp);
-
- display_log(dp, LIBPNG_ERROR, "%s", error);
-}
-
-static void
-display_cache_file(struct display *dp, const char *filename)
- /* Does the initial cache of the file. */
-{
- FILE *fp;
- int ret;
-
- dp->filename = filename;
-
- if (filename != NULL)
- {
- fp = fopen(filename, "rb");
- if (fp == NULL)
- display_log(dp, USER_ERROR, "open failed: %s", strerror(errno));
- }
-
- else
- fp = stdin;
-
- ret = buffer_from_file(&dp->original_file, fp);
-
- fclose(fp);
-
- if (ret != 0)
- display_log(dp, APP_ERROR, "read failed: %s", strerror(ret));
-}
-
-static void
-buffer_read(struct display *dp, struct buffer *bp, png_bytep data,
- size_t size)
-{
- struct buffer_list *last = bp->current;
- size_t read_count = bp->read_count;
-
- while (size > 0)
- {
- size_t avail;
-
- if (last == NULL ||
- (last == bp->last && read_count >= bp->end_count))
- {
- display_log(dp, USER_ERROR, "file truncated (%lu bytes)",
- (unsigned long)size);
- /*NOTREACHED*/
- break;
- }
-
- else if (read_count >= sizeof last->buffer)
- {
- /* Move to the next buffer: */
- last = last->next;
- read_count = 0;
- bp->current = last; /* Avoid update outside the loop */
-
- /* And do a sanity check (the EOF case is caught above) */
- if (last == NULL)
- {
- display_log(dp, INTERNAL_ERROR, "damaged buffer list");
- /*NOTREACHED*/
- break;
- }
- }
-
- avail = (sizeof last->buffer) - read_count;
- if (avail > size)
- avail = size;
-
- memcpy(data, last->buffer + read_count, avail);
- read_count += avail;
- size -= avail;
- data += avail;
- }
-
- bp->read_count = read_count;
-}
-
-static void PNGCBAPI
-read_function(png_structp pp, png_bytep data, size_t size)
-{
- buffer_read(get_dp(pp), get_buffer(pp), data, size);
-}
-
-static void
-read_png(struct display *dp, struct buffer *bp, const char *operation,
- int transforms)
-{
- png_structp pp;
- png_infop ip;
-
- /* This cleans out any previous read and sets operation and transforms to
- * empty.
- */
- display_clean_read(dp);
-
- if (operation != NULL) /* else this is a verify and do not overwrite info */
- {
- dp->operation = operation;
- dp->transforms = transforms;
- }
-
- dp->read_pp = pp = png_create_read_struct(PNG_LIBPNG_VER_STRING, dp,
- display_error, display_warning);
- if (pp == NULL)
- display_log(dp, LIBPNG_ERROR, "failed to create read struct");
-
- /* The png_read_png API requires us to make the info struct, but it does the
- * call to png_read_info.
- */
- dp->read_ip = ip = png_create_info_struct(pp);
- if (ip == NULL)
- display_log(dp, LIBPNG_ERROR, "failed to create info struct");
-
-# ifdef PNG_SET_USER_LIMITS_SUPPORTED
- /* Remove the user limits, if any */
- png_set_user_limits(pp, 0x7fffffff, 0x7fffffff);
-# endif
-
- /* Set the IO handling */
- buffer_start_read(bp);
- png_set_read_fn(pp, bp, read_function);
-
- png_read_png(pp, ip, transforms, NULL/*params*/);
-
-#if 0 /* crazy debugging */
- {
- png_bytep pr = png_get_rows(pp, ip)[0];
- size_t rb = png_get_rowbytes(pp, ip);
- size_t cb;
- char c = ' ';
-
- fprintf(stderr, "%.4x %2d (%3lu bytes):", transforms, png_get_bit_depth(pp,ip), (unsigned long)rb);
-
- for (cb=0; cb<rb; ++cb)
- fputc(c, stderr), fprintf(stderr, "%.2x", pr[cb]), c='.';
-
- fputc('\n', stderr);
- }
-#endif
-}
-
-static void
-update_display(struct display *dp)
- /* called once after the first read to update all the info, original_pp and
- * original_ip must have been filled in.
- */
-{
- png_structp pp;
- png_infop ip;
-
- /* Now perform the initial read with a 0 transform. */
- read_png(dp, &dp->original_file, "original read", 0/*no transform*/);
-
- /* Move the result to the 'original' fields */
- dp->original_pp = pp = dp->read_pp, dp->read_pp = NULL;
- dp->original_ip = ip = dp->read_ip, dp->read_ip = NULL;
-
- dp->original_rowbytes = png_get_rowbytes(pp, ip);
- if (dp->original_rowbytes == 0)
- display_log(dp, LIBPNG_BUG, "png_get_rowbytes returned 0");
-
- dp->chunks = png_get_valid(pp, ip, 0xffffffff);
- if ((dp->chunks & PNG_INFO_IDAT) == 0) /* set by png_read_png */
- display_log(dp, LIBPNG_BUG, "png_read_png did not set IDAT flag");
-
- dp->original_rows = png_get_rows(pp, ip);
- if (dp->original_rows == NULL)
- display_log(dp, LIBPNG_BUG, "png_read_png did not create row buffers");
-
- if (!png_get_IHDR(pp, ip,
- &dp->width, &dp->height, &dp->bit_depth, &dp->color_type,
- &dp->interlace_method, &dp->compression_method, &dp->filter_method))
- display_log(dp, LIBPNG_BUG, "png_get_IHDR failed");
-
- /* 'active' transforms are discovered based on the original image format;
- * running one active transform can activate others. At present the code
- * does not attempt to determine the closure.
- */
- {
- png_uint_32 chunks = dp->chunks;
- int active = 0, inactive = 0;
- int ct = dp->color_type;
- int bd = dp->bit_depth;
- unsigned int i;
-
- for (i=0; i<TTABLE_SIZE; ++i) if (transform_info[i].name != NULL)
- {
- int transform = transform_info[i].transform;
-
- if ((transform_info[i].valid_chunks == 0 ||
- (transform_info[i].valid_chunks & chunks) != 0) &&
- (transform_info[i].color_mask_required & ct) ==
- transform_info[i].color_mask_required &&
- (transform_info[i].color_mask_absent & ct) == 0 &&
- (transform_info[i].bit_depths & bd) != 0 &&
- (transform_info[i].when & TRANSFORM_R) != 0)
- active |= transform;
-
- else if ((transform_info[i].when & TRANSFORM_R) != 0)
- inactive |= transform;
- }
-
- /* Some transforms appear multiple times in the table; the 'active' status
- * is the logical OR of these and the inactive status must be adjusted to
- * take this into account.
- */
- inactive &= ~active;
-
- dp->active_transforms = active;
- dp->ignored_transforms = inactive; /* excluding write-only transforms */
- }
-}
-
-static int
-compare_read(struct display *dp, int applied_transforms)
-{
- /* Compare the png_info from read_ip with original_info */
- size_t rowbytes;
- png_uint_32 width, height;
- int bit_depth, color_type;
- int interlace_method, compression_method, filter_method;
- const char *e = NULL;
-
- png_get_IHDR(dp->read_pp, dp->read_ip, &width, &height, &bit_depth,
- &color_type, &interlace_method, &compression_method, &filter_method);
-
-# define C(item) if (item != dp->item) \
- display_log(dp, APP_WARNING, "IHDR " #item "(%lu) changed to %lu",\
- (unsigned long)dp->item, (unsigned long)item), e = #item
-
- /* The IHDR should be identical: */
- C(width);
- C(height);
- C(bit_depth);
- C(color_type);
- C(interlace_method);
- C(compression_method);
- C(filter_method);
-
- /* 'e' remains set to the name of the last thing changed: */
- if (e)
- display_log(dp, APP_ERROR, "IHDR changed (%s)", e);
-
- /* All the chunks from the original PNG should be preserved in the output PNG
- * because the PNG format has not been changed.
- */
- {
- unsigned long chunks =
- png_get_valid(dp->read_pp, dp->read_ip, 0xffffffff);
-
- if (chunks != dp->chunks)
- display_log(dp, APP_FAIL, "PNG chunks changed from 0x%lx to 0x%lx",
- (unsigned long)dp->chunks, chunks);
- }
-
- /* rowbytes should be the same */
- rowbytes = png_get_rowbytes(dp->read_pp, dp->read_ip);
-
- /* NOTE: on 64-bit systems this may trash the top bits of rowbytes,
- * which could lead to weird error messages.
- */
- if (rowbytes != dp->original_rowbytes)
- display_log(dp, APP_ERROR, "PNG rowbytes changed from %lu to %lu",
- (unsigned long)dp->original_rowbytes, (unsigned long)rowbytes);
-
- /* The rows should be the same too, unless the applied transforms includes
- * the shift transform, in which case low bits may have been lost.
- */
- {
- png_bytepp rows = png_get_rows(dp->read_pp, dp->read_ip);
- unsigned int mask; /* mask (if not zero) for the final byte */
-
- if (bit_depth < 8)
- {
- /* Need the stray bits at the end, this depends only on the low bits
- * of the image width; overflow does not matter. If the width is an
- * exact multiple of 8 bits this gives a mask of 0, not 0xff.
- */
- mask = 0xff & (0xff00 >> ((bit_depth * width) & 7));
- }
-
- else
- mask = 0;
-
- if (rows == NULL)
- display_log(dp, LIBPNG_BUG, "png_get_rows returned NULL");
-
- if ((applied_transforms & PNG_TRANSFORM_SHIFT) == 0 ||
- (dp->active_transforms & PNG_TRANSFORM_SHIFT) == 0 ||
- color_type == PNG_COLOR_TYPE_PALETTE)
- {
- unsigned long y;
-
- for (y=0; y<height; ++y)
- {
- png_bytep row = rows[y];
- png_bytep orig = dp->original_rows[y];
-
- if (memcmp(row, orig, rowbytes-(mask != 0)) != 0 || (mask != 0 &&
- ((row[rowbytes-1] & mask) != (orig[rowbytes-1] & mask))))
- {
- size_t x;
-
- /* Find the first error */
- for (x=0; x<rowbytes-1; ++x) if (row[x] != orig[x])
- break;
-
- display_log(dp, APP_FAIL,
- "byte(%lu,%lu) changed 0x%.2x -> 0x%.2x",
- (unsigned long)x, (unsigned long)y, orig[x], row[x]);
- return 0; /* don't keep reporting failed rows on 'continue' */
- }
- }
- }
-
- else
-# ifdef PNG_sBIT_SUPPORTED
- {
- unsigned long y;
- int bpp; /* bits-per-pixel then bytes-per-pixel */
- /* components are up to 8 bytes in size */
- png_byte sig_bits[8];
- png_color_8p sBIT;
-
- if (png_get_sBIT(dp->read_pp, dp->read_ip, &sBIT) != PNG_INFO_sBIT)
- display_log(dp, INTERNAL_ERROR,
- "active shift transform but no sBIT in file");
-
- switch (color_type)
- {
- case PNG_COLOR_TYPE_GRAY:
- sig_bits[0] = sBIT->gray;
- bpp = bit_depth;
- break;
-
- case PNG_COLOR_TYPE_GA:
- sig_bits[0] = sBIT->gray;
- sig_bits[1] = sBIT->alpha;
- bpp = 2 * bit_depth;
- break;
-
- case PNG_COLOR_TYPE_RGB:
- sig_bits[0] = sBIT->red;
- sig_bits[1] = sBIT->green;
- sig_bits[2] = sBIT->blue;
- bpp = 3 * bit_depth;
- break;
-
- case PNG_COLOR_TYPE_RGBA:
- sig_bits[0] = sBIT->red;
- sig_bits[1] = sBIT->green;
- sig_bits[2] = sBIT->blue;
- sig_bits[3] = sBIT->alpha;
- bpp = 4 * bit_depth;
- break;
-
- default:
- display_log(dp, LIBPNG_ERROR, "invalid colour type %d",
- color_type);
- /*NOTREACHED*/
- bpp = 0;
- break;
- }
-
- {
- int b;
-
- for (b=0; 8*b<bpp; ++b)
- {
- /* libpng should catch this; if not there is a security issue
- * because an app (like this one) may overflow an array. In fact
- * libpng doesn't catch this at present.
- */
- if (sig_bits[b] == 0 || sig_bits[b] > bit_depth/*!palette*/)
- display_log(dp, LIBPNG_BUG,
- "invalid sBIT[%u] value %d returned for PNG bit depth %d",
- b, sig_bits[b], bit_depth);
- }
- }
-
- if (bpp < 8 && bpp != bit_depth)
- {
- /* sanity check; this is a grayscale PNG; something is wrong in the
- * code above.
- */
- display_log(dp, INTERNAL_ERROR, "invalid bpp %u for bit_depth %u",
- bpp, bit_depth);
- }
-
- switch (bit_depth)
- {
- int b;
-
- case 16: /* Two bytes per component, big-endian */
- for (b = (bpp >> 4); b > 0; --b)
- {
- unsigned int sig = (unsigned int)(0xffff0000 >> sig_bits[b]);
-
- sig_bits[2*b+1] = (png_byte)sig;
- sig_bits[2*b+0] = (png_byte)(sig >> 8); /* big-endian */
- }
- break;
-
- case 8: /* One byte per component */
- for (b=0; b*8 < bpp; ++b)
- sig_bits[b] = (png_byte)(0xff00 >> sig_bits[b]);
- break;
-
- case 1: /* allowed, but dumb */
- /* Value is 1 */
- sig_bits[0] = 0xff;
- break;
-
- case 2: /* Replicate 4 times */
- /* Value is 1 or 2 */
- b = 0x3 & ((0x3<<2) >> sig_bits[0]);
- b |= b << 2;
- b |= b << 4;
- sig_bits[0] = (png_byte)b;
- break;
-
- case 4: /* Relicate twice */
- /* Value is 1, 2, 3 or 4 */
- b = 0xf & ((0xf << 4) >> sig_bits[0]);
- b |= b << 4;
- sig_bits[0] = (png_byte)b;
- break;
-
- default:
- display_log(dp, LIBPNG_BUG, "invalid bit depth %d", bit_depth);
- break;
- }
-
- /* Convert bpp to bytes; this gives '1' for low-bit depth grayscale,
- * where there are multiple pixels per byte.
- */
- bpp = (bpp+7) >> 3;
-
- /* The mask can be combined with sig_bits[0] */
- if (mask != 0)
- {
- mask &= sig_bits[0];
-
- if (bpp != 1 || mask == 0)
- display_log(dp, INTERNAL_ERROR, "mask calculation error %u, %u",
- bpp, mask);
- }
-
- for (y=0; y<height; ++y)
- {
- png_bytep row = rows[y];
- png_bytep orig = dp->original_rows[y];
- unsigned long x;
-
- for (x=0; x<(width-(mask!=0)); ++x)
- {
- int b;
-
- for (b=0; b<bpp; ++b)
- {
- if ((*row++ & sig_bits[b]) != (*orig++ & sig_bits[b]))
- {
- display_log(dp, APP_FAIL,
- "significant bits at (%lu[%u],%lu) changed %.2x->%.2x",
- x, b, y, orig[-1], row[-1]);
- return 0;
- }
- }
- }
-
- if (mask != 0 && (*row & mask) != (*orig & mask))
- {
- display_log(dp, APP_FAIL,
- "significant bits at (%lu[end],%lu) changed", x, y);
- return 0;
- }
- } /* for y */
- }
-# else /* !sBIT */
- display_log(dp, INTERNAL_ERROR,
- "active shift transform but no sBIT support");
-# endif /* !sBIT */
- }
-
- return 1; /* compare succeeded */
-}
-
-#ifdef PNG_WRITE_PNG_SUPPORTED
-static void
-buffer_write(struct display *dp, struct buffer *buffer, png_bytep data,
- size_t size)
- /* Generic write function used both from the write callback provided to
- * libpng and from the generic read code.
- */
-{
- /* Write the data into the buffer, adding buffers as required */
- struct buffer_list *last = buffer->last;
- size_t end_count = buffer->end_count;
-
- while (size > 0)
- {
- size_t avail;
-
- if (end_count >= sizeof last->buffer)
- {
- if (last->next == NULL)
- {
- last = buffer_extend(last);
-
- if (last == NULL)
- display_log(dp, APP_ERROR, "out of memory saving file");
- }
-
- else
- last = last->next;
-
- buffer->last = last; /* avoid the need to rewrite every time */
- end_count = 0;
- }
-
- avail = (sizeof last->buffer) - end_count;
- if (avail > size)
- avail = size;
-
- memcpy(last->buffer + end_count, data, avail);
- end_count += avail;
- size -= avail;
- data += avail;
- }
-
- buffer->end_count = end_count;
-}
-
-static void PNGCBAPI
-write_function(png_structp pp, png_bytep data, size_t size)
-{
- buffer_write(get_dp(pp), get_buffer(pp), data, size);
-}
-
-static void
-write_png(struct display *dp, png_infop ip, int transforms)
-{
- display_clean_write(dp); /* safety */
-
- buffer_start_write(&dp->written_file);
- dp->operation = "write";
- dp->transforms = transforms;
-
- dp->write_pp = png_create_write_struct(PNG_LIBPNG_VER_STRING, dp,
- display_error, display_warning);
-
- if (dp->write_pp == NULL)
- display_log(dp, APP_ERROR, "failed to create write png_struct");
-
- png_set_write_fn(dp->write_pp, &dp->written_file, write_function,
- NULL/*flush*/);
-
-# ifdef PNG_SET_USER_LIMITS_SUPPORTED
- /* Remove the user limits, if any */
- png_set_user_limits(dp->write_pp, 0x7fffffff, 0x7fffffff);
-# endif
-
- /* Certain transforms require the png_info to be zapped to allow the
- * transform to work correctly.
- */
- if (transforms & (PNG_TRANSFORM_PACKING|
- PNG_TRANSFORM_STRIP_FILLER|
- PNG_TRANSFORM_STRIP_FILLER_BEFORE))
- {
- int ct = dp->color_type;
-
- if (transforms & (PNG_TRANSFORM_STRIP_FILLER|
- PNG_TRANSFORM_STRIP_FILLER_BEFORE))
- ct &= ~PNG_COLOR_MASK_ALPHA;
-
- png_set_IHDR(dp->write_pp, ip, dp->width, dp->height, dp->bit_depth, ct,
- dp->interlace_method, dp->compression_method, dp->filter_method);
- }
-
- png_write_png(dp->write_pp, ip, transforms, NULL/*params*/);
-
- /* Clean it on the way out - if control returns to the caller then the
- * written_file contains the required data.
- */
- display_clean_write(dp);
-}
-#endif /* WRITE_PNG */
-
-static int
-skip_transform(struct display *dp, int tr)
- /* Helper to test for a bad combo and log it if it is skipped */
-{
- if ((dp->options & SKIP_BUGS) != 0 && is_bad_combo(tr))
- {
- /* Log this to stdout if logging is on, otherwise just do an information
- * display_log.
- */
- if ((dp->options & LOG_SKIPPED) != 0)
- {
- printf("SKIP: %s transforms ", dp->filename);
-
- while (tr != 0)
- {
- int next = first_transform(tr);
- tr &= ~next;
-
- printf("%s", transform_name(next));
- if (tr != 0)
- putchar('+');
- }
-
- putchar('\n');
- }
-
- else
- display_log(dp, INFORMATION, "%s: skipped known bad combo 0x%x",
- dp->filename, tr);
-
- return 1; /* skip */
- }
-
- return 0; /* don't skip */
-}
-
-static void
-test_one_file(struct display *dp, const char *filename)
-{
- /* First cache the file and update the display original file
- * information for the new file.
- */
- dp->operation = "cache file";
- dp->transforms = 0;
- display_cache_file(dp, filename);
- update_display(dp);
-
- /* First test: if there are options that should be ignored for this file
- * verify that they really are ignored.
- */
- if (dp->ignored_transforms != 0)
- {
- read_png(dp, &dp->original_file, "ignored transforms",
- dp->ignored_transforms);
-
- /* The result should be identical to the original_rows */
- if (!compare_read(dp, 0/*transforms applied*/))
- return; /* no point testing more */
- }
-
-#ifdef PNG_WRITE_PNG_SUPPORTED
- /* Second test: write the original PNG data out to a new file (to test the
- * write side) then read the result back in and make sure that it hasn't
- * changed.
- */
- dp->operation = "write";
- write_png(dp, dp->original_ip, 0/*transforms*/);
- read_png(dp, &dp->written_file, NULL, 0/*transforms*/);
- if (!compare_read(dp, 0/*transforms applied*/))
- return;
-#endif
-
- /* Third test: the active options. Test each in turn, or, with the
- * EXHAUSTIVE option, test all possible combinations.
- */
- {
- /* Use unsigned int here because the code below to increment through all
- * the possibilities exhaustively has to use a compare and that must be
- * unsigned, because some transforms are negative on a 16-bit system.
- */
- unsigned int active = dp->active_transforms;
- int exhaustive = (dp->options & EXHAUSTIVE) != 0;
- unsigned int current = first_transform(active);
- unsigned int bad_transforms = 0;
- unsigned int bad_combo = ~0U; /* bitwise AND of failing transforms */
- unsigned int bad_combo_list = 0; /* bitwise OR of failures */
-
- for (;;)
- {
- read_png(dp, &dp->original_file, "active transforms", current);
-
- /* If this involved any irreversible transformations then if we write
- * it out with just the reversible transformations and read it in again
- * with the same transforms we should get the same thing. At present
- * this isn't done - it just seems like a waste of time and it would
- * require two sets of read png_struct/png_info.
- *
- * If there were no irreversible transformations then if we write it
- * out and read it back in again (without the reversible transforms)
- * we should get back to the place where we started.
- */
-#ifdef PNG_WRITE_PNG_SUPPORTED
- if ((current & write_transforms) == current)
- {
- /* All transforms reversible: write the PNG with the transformations
- * reversed, then read it back in with no transformations. The
- * result should be the same as the original apart from the loss of
- * low order bits because of the SHIFT/sBIT transform.
- */
- dp->operation = "reversible transforms";
- write_png(dp, dp->read_ip, current);
-
- /* And if this is read back in, because all the transformations were
- * reversible, the result should be the same.
- */
- read_png(dp, &dp->written_file, NULL, 0);
- if (!compare_read(dp, current/*for the SHIFT/sBIT transform*/))
- {
- /* This set of transforms failed. If a single bit is set - if
- * there is just one transform - don't include this in further
- * 'exhaustive' tests. Notice that each transform is tested on
- * its own before testing combos in the exhaustive case.
- */
- if (is_combo(current))
- {
- bad_combo &= current;
- bad_combo_list |= current;
- }
-
- else
- bad_transforms |= current;
- }
- }
-#endif
-
- /* Now move to the next transform */
- if (exhaustive) /* all combinations */
- {
- unsigned int next = current;
-
- do
- {
- if (next == read_transforms) /* Everything tested */
- goto combo;
-
- ++next;
- } /* skip known bad combos if the relevant option is set; skip
- * combos involving known bad single transforms in all cases.
- */
- while ( (next & read_transforms) <= current
- || (next & active) == 0 /* skip cases that do nothing */
- || (next & bad_transforms) != 0
- || skip_transform(dp, next));
-
- assert((next & read_transforms) == next);
- current = next;
- }
-
- else /* one at a time */
- {
- active &= ~current;
-
- if (active == 0)
- goto combo;
-
- current = first_transform(active);
- }
- }
-
-combo:
- if (dp->options & FIND_BAD_COMBOS)
- {
- /* bad_combos identifies the combos that occur in all failing cases;
- * bad_combo_list identifies transforms that do not prevent the
- * failure.
- */
- if (bad_combo != ~0U)
- printf("%s[0x%x]: PROBLEM: 0x%x[0x%x] ANTIDOTE: 0x%x\n",
- dp->filename, active, bad_combo, bad_combo_list,
- rw_transforms & ~bad_combo_list);
-
- else
- printf("%s: no %sbad combos found\n", dp->filename,
- (dp->options & SKIP_BUGS) ? "additional " : "");
- }
- }
-}
-
-static int
-do_test(struct display *dp, const char *file)
- /* Exists solely to isolate the setjmp clobbers */
-{
- int ret = setjmp(dp->error_return);
-
- if (ret == 0)
- {
- test_one_file(dp, file);
- return 0;
- }
-
- else if (ret < ERRORS) /* shouldn't longjmp on warnings */
- display_log(dp, INTERNAL_ERROR, "unexpected return code %d", ret);
-
- return ret;
-}
-
-int
-main(int argc, char **argv)
-{
- /* For each file on the command line test it with a range of transforms */
- int option_end, ilog = 0;
- struct display d;
-
- validate_T();
- display_init(&d);
-
- for (option_end=1; option_end<argc; ++option_end)
- {
- const char *name = argv[option_end];
-
- if (strcmp(name, "--verbose") == 0)
- d.options = (d.options & ~LEVEL_MASK) | VERBOSE;
-
- else if (strcmp(name, "--warnings") == 0)
- d.options = (d.options & ~LEVEL_MASK) | WARNINGS;
-
- else if (strcmp(name, "--errors") == 0)
- d.options = (d.options & ~LEVEL_MASK) | ERRORS;
-
- else if (strcmp(name, "--quiet") == 0)
- d.options = (d.options & ~LEVEL_MASK) | QUIET;
-
- else if (strcmp(name, "--exhaustive") == 0)
- d.options |= EXHAUSTIVE;
-
- else if (strcmp(name, "--fast") == 0)
- d.options &= ~EXHAUSTIVE;
-
- else if (strcmp(name, "--strict") == 0)
- d.options |= STRICT;
-
- else if (strcmp(name, "--relaxed") == 0)
- d.options &= ~STRICT;
-
- else if (strcmp(name, "--log") == 0)
- {
- ilog = option_end; /* prevent display */
- d.options |= LOG;
- }
-
- else if (strcmp(name, "--nolog") == 0)
- d.options &= ~LOG;
-
- else if (strcmp(name, "--continue") == 0)
- d.options |= CONTINUE;
-
- else if (strcmp(name, "--stop") == 0)
- d.options &= ~CONTINUE;
-
- else if (strcmp(name, "--skip-bugs") == 0)
- d.options |= SKIP_BUGS;
-
- else if (strcmp(name, "--test-all") == 0)
- d.options &= ~SKIP_BUGS;
-
- else if (strcmp(name, "--log-skipped") == 0)
- d.options |= LOG_SKIPPED;
-
- else if (strcmp(name, "--nolog-skipped") == 0)
- d.options &= ~LOG_SKIPPED;
-
- else if (strcmp(name, "--find-bad-combos") == 0)
- d.options |= FIND_BAD_COMBOS;
-
- else if (strcmp(name, "--nofind-bad-combos") == 0)
- d.options &= ~FIND_BAD_COMBOS;
-
- else if (strcmp(name, "--list-combos") == 0)
- d.options |= LIST_COMBOS;
-
- else if (strcmp(name, "--nolist-combos") == 0)
- d.options &= ~LIST_COMBOS;
-
- else if (name[0] == '-' && name[1] == '-')
- {
- fprintf(stderr, "pngimage: %s: unknown option\n", name);
- return 99;
- }
-
- else
- break; /* Not an option */
- }
-
- {
- int i;
- int errors = 0;
-
- for (i=option_end; i<argc; ++i)
- {
- {
- int ret = do_test(&d, argv[i]);
-
- if (ret > QUIET) /* abort on user or internal error */
- return 99;
- }
-
- /* Here on any return, including failures, except user/internal issues
- */
- {
- int pass = (d.options & STRICT) ?
- RESULT_STRICT(d.results) : RESULT_RELAXED(d.results);
-
- if (!pass)
- ++errors;
-
- if (d.options & LOG)
- {
- int j;
-
- printf("%s: pngimage ", pass ? "PASS" : "FAIL");
-
- for (j=1; j<option_end; ++j) if (j != ilog)
- printf("%s ", argv[j]);
-
- printf("%s\n", d.filename);
- }
- }
-
- display_clean(&d);
- }
-
- /* Release allocated memory */
- display_destroy(&d);
-
- return errors != 0;
- }
-}
-#else /* !READ_PNG */
-int
-main(void)
-{
- fprintf(stderr, "pngimage: no support for png_read/write_image\n");
- return SKIP;
-}
-#endif
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngimage.o b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngimage.o
deleted file mode 100644
index d48acab..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngimage.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngstest-errors.h b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngstest-errors.h
deleted file mode 100644
index 3356f1c..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngstest-errors.h
+++ /dev/null
@@ -1,165 +0,0 @@
-/* contrib/libtests/pngstest-errors.h
- *
- * BUILT USING: libpng version 1.6.19beta03 - September 25, 2015
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * THIS IS A MACHINE GENERATED FILE: do not edit it directly!
- * Instead run:
- *
- * pngstest --accumulate
- *
- * on as many PNG files as possible; at least PNGSuite and
- * contrib/libtests/testpngs.
- */
-static png_uint_16 gpc_error[16/*in*/][16/*out*/][4/*a*/] =
-{
- { /* input: sRGB-gray */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 372, 0 }, { 0, 0, 372, 0 }, { 0, 0, 372, 0 }, { 0, 0, 372, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: sRGB-gray+alpha */
- { 0, 19, 0, 0 }, { 0, 0, 0, 0 }, { 0, 20, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 897, 788, 0 }, { 0, 897, 788, 0 }, { 0, 897, 788, 0 }, { 0, 897, 788, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: sRGB-rgb */
- { 0, 0, 19, 0 }, { 0, 0, 19, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 893, 0 }, { 0, 0, 893, 0 }, { 0, 0, 811, 0 }, { 0, 0, 811, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: sRGB-rgb+alpha */
- { 0, 16, 17, 0 }, { 0, 17, 17, 0 }, { 0, 19, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 850, 875, 0 }, { 0, 850, 875, 0 }, { 0, 897, 788, 0 }, { 0, 897, 788, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: linear-gray */
- { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: linear-gray+alpha */
- { 0, 74, 9, 0 }, { 0, 20, 9, 0 }, { 0, 74, 9, 0 }, { 0, 20, 9, 0 },
- { 0, 0, 0, 0 }, { 0, 1, 0, 0 }, { 0, 0, 0, 0 }, { 0, 1, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: linear-rgb */
- { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 },
- { 0, 0, 4, 0 }, { 0, 0, 4, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: linear-rgb+alpha */
- { 0, 126, 143, 0 }, { 0, 11, 7, 0 }, { 0, 74, 9, 0 }, { 0, 17, 9, 0 },
- { 0, 4, 4, 0 }, { 0, 5, 4, 0 }, { 0, 0, 0, 0 }, { 0, 1, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-sRGB-gray */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-sRGB-gray+alpha */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-sRGB-rgb */
- { 0, 0, 13, 0 }, { 0, 0, 13, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 },
- { 0, 0, 673, 0 }, { 0, 0, 673, 0 }, { 0, 0, 674, 0 }, { 0, 0, 674, 0 },
- { 0, 0, 1, 0 }, { 0, 0, 1, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 460, 0 }, { 0, 0, 460, 0 }, { 0, 0, 263, 0 }, { 0, 0, 263, 0 }
- }, { /* input: color-mapped-sRGB-rgb+alpha */
- { 0, 6, 8, 0 }, { 0, 7, 8, 0 }, { 0, 75, 9, 0 }, { 0, 9, 9, 0 },
- { 0, 585, 427, 0 }, { 0, 585, 427, 0 }, { 0, 717, 514, 0 }, { 0, 717, 514, 0 },
- { 0, 1, 1, 0 }, { 0, 1, 1, 0 }, { 0, 1, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 13323, 460, 0 }, { 0, 427, 460, 0 }, { 0, 16480, 263, 0 }, { 0, 243, 263, 0 }
- }, { /* input: color-mapped-linear-gray */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 282, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-linear-gray+alpha */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 253, 282, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-linear-rgb */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 265, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-linear-rgb+alpha */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 243, 265, 0 }
- }
-};
-static png_uint_16 gpc_error_via_linear[16][4/*out*/][4] =
-{
- { /* input: sRGB-gray */
- { 0, 0, 7, 0 }, { 0, 0, 7, 0 }, { 0, 0, 7, 0 }, { 0, 0, 7, 0 }
- }, { /* input: sRGB-gray+alpha */
- { 0, 15, 15, 0 }, { 0, 186, 15, 0 }, { 0, 15, 15, 0 }, { 0, 186, 15, 0 }
- }, { /* input: sRGB-rgb */
- { 0, 0, 20, 0 }, { 0, 0, 20, 0 }, { 0, 0, 15, 0 }, { 0, 0, 15, 0 }
- }, { /* input: sRGB-rgb+alpha */
- { 0, 16, 17, 0 }, { 0, 187, 17, 0 }, { 0, 15, 15, 0 }, { 0, 186, 15, 0 }
- }, { /* input: linear-gray */
- { 0, 0, 1, 0 }, { 0, 0, 1, 0 }, { 0, 0, 1, 0 }, { 0, 0, 1, 0 }
- }, { /* input: linear-gray+alpha */
- { 0, 1, 1, 0 }, { 0, 1, 1, 0 }, { 0, 1, 1, 0 }, { 0, 1, 1, 0 }
- }, { /* input: linear-rgb */
- { 0, 0, 1, 0 }, { 0, 0, 1, 0 }, { 0, 0, 1, 0 }, { 0, 0, 1, 0 }
- }, { /* input: linear-rgb+alpha */
- { 0, 1, 1, 0 }, { 0, 9, 1, 0 }, { 0, 1, 1, 0 }, { 0, 1, 1, 0 }
- }, { /* input: color-mapped-sRGB-gray */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-sRGB-gray+alpha */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-sRGB-rgb */
- { 0, 0, 13, 0 }, { 0, 0, 13, 0 }, { 0, 0, 14, 0 }, { 0, 0, 14, 0 }
- }, { /* input: color-mapped-sRGB-rgb+alpha */
- { 0, 4, 8, 0 }, { 0, 9, 8, 0 }, { 0, 9, 5, 0 }, { 0, 32, 5, 0 }
- }, { /* input: color-mapped-linear-gray */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-linear-gray+alpha */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-linear-rgb */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-linear-rgb+alpha */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }
-};
-static png_uint_16 gpc_error_to_colormap[8/*i*/][8/*o*/][4] =
-{
- { /* input: sRGB-gray */
- { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 },
- { 0, 0, 560, 0 }, { 0, 0, 560, 0 }, { 0, 0, 560, 0 }, { 0, 0, 560, 0 }
- }, { /* input: sRGB-gray+alpha */
- { 0, 19, 9, 0 }, { 0, 255, 9, 25 }, { 0, 88, 9, 0 }, { 0, 255, 9, 25 },
- { 0, 1012, 928, 0 }, { 0, 16026, 928, 6425 }, { 0, 1012, 928, 0 }, { 0, 16026, 928, 6425 }
- }, { /* input: sRGB-rgb */
- { 0, 0, 19, 0 }, { 0, 0, 19, 0 }, { 0, 0, 25, 0 }, { 0, 0, 25, 0 },
- { 0, 0, 962, 0 }, { 0, 0, 962, 0 }, { 0, 0, 13677, 0 }, { 0, 0, 13677, 0 }
- }, { /* input: sRGB-rgb+alpha */
- { 0, 63, 77, 0 }, { 0, 255, 19, 25 }, { 0, 225, 25, 0 }, { 0, 255, 25, 67 },
- { 0, 17534, 18491, 0 }, { 0, 15736, 2824, 6425 }, { 0, 14019, 13677, 0 }, { 0, 50115, 13677, 17219 }
- }, { /* input: linear-gray */
- { 0, 0, 73, 0 }, { 0, 0, 73, 0 }, { 0, 0, 73, 0 }, { 0, 0, 73, 0 },
- { 0, 0, 18817, 0 }, { 0, 0, 18817, 0 }, { 0, 0, 18817, 0 }, { 0, 0, 18817, 0 }
- }, { /* input: linear-gray+alpha */
- { 0, 74, 74, 0 }, { 0, 255, 74, 25 }, { 0, 99, 74, 0 }, { 0, 255, 74, 25 },
- { 0, 18919, 18907, 0 }, { 0, 24549, 18907, 6553 }, { 0, 18919, 18907, 0 }, { 0, 24549, 18907, 6553 }
- }, { /* input: linear-rgb */
- { 0, 0, 73, 0 }, { 0, 0, 73, 0 }, { 0, 0, 98, 0 }, { 0, 0, 98, 0 },
- { 0, 0, 18664, 0 }, { 0, 0, 18664, 0 }, { 0, 0, 24998, 0 }, { 0, 0, 24998, 0 }
- }, { /* input: linear-rgb+alpha */
- { 0, 181, 196, 0 }, { 0, 255, 61, 25 }, { 206, 187, 98, 0 }, { 0, 255, 98, 67 },
- { 0, 18141, 18137, 0 }, { 0, 17494, 17504, 6553 }, { 0, 24979, 24992, 0 }, { 0, 49172, 24992, 17347 }
- }
-};
-/* END MACHINE GENERATED */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngstest.c b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngstest.c
deleted file mode 100644
index a368bf0..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngstest.c
+++ /dev/null
@@ -1,3828 +0,0 @@
-/*-
- * pngstest.c
- *
- * Last changed in libpng 1.6.31 [July 27, 2017]
- * Copyright (c) 2013-2017 John Cunningham Bowler
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Test for the PNG 'simplified' APIs.
- */
-#define _ISOC90_SOURCE 1
-#define MALLOC_CHECK_ 2/*glibc facility: turn on debugging*/
-
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <errno.h>
-#include <ctype.h>
-#include <math.h>
-
-#if defined(HAVE_CONFIG_H) && !defined(PNG_NO_CONFIG_H)
-# include <config.h>
-#endif
-
-/* Define the following to use this test against your installed libpng, rather
- * than the one being built here:
- */
-#ifdef PNG_FREESTANDING_TESTS
-# include <png.h>
-#else
-# include "../../png.h"
-#endif
-
-/* 1.6.1 added support for the configure test harness, which uses 77 to indicate
- * a skipped test, in earlier versions we need to succeed on a skipped test, so:
- */
-#if PNG_LIBPNG_VER >= 10601 && defined(HAVE_CONFIG_H)
-# define SKIP 77
-#else
-# define SKIP 0
-#endif
-
-#ifdef PNG_SIMPLIFIED_READ_SUPPORTED /* Else nothing can be done */
-#include "../tools/sRGB.h"
-
-/* KNOWN ISSUES
- *
- * These defines switch on alternate algorithms for format conversions to match
- * the current libpng implementation; they are set to allow pngstest to pass
- * even though libpng is producing answers that are not as correct as they
- * should be.
- */
-#define ALLOW_UNUSED_GPC 0
- /* If true include unused static GPC functions and declare an external array
- * of them to hide the fact that they are unused. This is for development
- * use while testing the correct function to use to take into account libpng
- * misbehavior, such as using a simple power law to correct sRGB to linear.
- */
-
-/* The following is to support direct compilation of this file as C++ */
-#ifdef __cplusplus
-# define voidcast(type, value) static_cast<type>(value)
-# define aligncastconst(type, value) \
- static_cast<type>(static_cast<const void*>(value))
-#else
-# define voidcast(type, value) (value)
-# define aligncastconst(type, value) ((const void*)(value))
-#endif /* __cplusplus */
-
-/* During parallel runs of pngstest each temporary file needs a unique name,
- * this is used to permit uniqueness using a command line argument which can be
- * up to 22 characters long.
- */
-static char tmpf[23] = "TMP";
-
-/* Generate random bytes. This uses a boring repeatable algorithm and it
- * is implemented here so that it gives the same set of numbers on every
- * architecture. It's a linear congruential generator (Knuth or Sedgewick
- * "Algorithms") but it comes from the 'feedback taps' table in Horowitz and
- * Hill, "The Art of Electronics".
- */
-static void
-make_random_bytes(png_uint_32* seed, void* pv, size_t size)
-{
- png_uint_32 u0 = seed[0], u1 = seed[1];
- png_bytep bytes = voidcast(png_bytep, pv);
-
- /* There are thirty three bits, the next bit in the sequence is bit-33 XOR
- * bit-20. The top 1 bit is in u1, the bottom 32 are in u0.
- */
- size_t i;
- for (i=0; i<size; ++i)
- {
- /* First generate 8 new bits then shift them in at the end. */
- png_uint_32 u = ((u0 >> (20-8)) ^ ((u1 << 7) | (u0 >> (32-7)))) & 0xff;
- u1 <<= 8;
- u1 |= u0 >> 24;
- u0 <<= 8;
- u0 |= u;
- *bytes++ = (png_byte)u;
- }
-
- seed[0] = u0;
- seed[1] = u1;
-}
-
-static png_uint_32 color_seed[2];
-
-static void
-reseed(void)
-{
- color_seed[0] = 0x12345678U;
- color_seed[1] = 0x9abcdefU;
-}
-
-static void
-random_color(png_colorp color)
-{
- make_random_bytes(color_seed, color, sizeof *color);
-}
-
-/* Math support - neither Cygwin nor Visual Studio have C99 support and we need
- * a predictable rounding function, so make one here:
- */
-static double
-closestinteger(double x)
-{
- return floor(x + .5);
-}
-
-/* Cast support: remove GCC whines. */
-static png_byte
-u8d(double d)
-{
- d = closestinteger(d);
- return (png_byte)d;
-}
-
-static png_uint_16
-u16d(double d)
-{
- d = closestinteger(d);
- return (png_uint_16)d;
-}
-
-/* sRGB support: use exact calculations rounded to the nearest int, see the
- * fesetround() call in main(). sRGB_to_d optimizes the 8 to 16-bit conversion.
- */
-static double sRGB_to_d[256];
-static double g22_to_d[256];
-
-static void
-init_sRGB_to_d(void)
-{
- int i;
-
- sRGB_to_d[0] = 0;
- for (i=1; i<255; ++i)
- sRGB_to_d[i] = linear_from_sRGB(i/255.);
- sRGB_to_d[255] = 1;
-
- g22_to_d[0] = 0;
- for (i=1; i<255; ++i)
- g22_to_d[i] = pow(i/255., 1/.45455);
- g22_to_d[255] = 1;
-}
-
-static png_byte
-sRGB(double linear /*range 0.0 .. 1.0*/)
-{
- return u8d(255 * sRGB_from_linear(linear));
-}
-
-static png_byte
-isRGB(int fixed_linear)
-{
- return sRGB(fixed_linear / 65535.);
-}
-
-#if 0 /* not used */
-static png_byte
-unpremultiply(int component, int alpha)
-{
- if (alpha <= component)
- return 255; /* Arbitrary, but consistent with the libpng code */
-
- else if (alpha >= 65535)
- return isRGB(component);
-
- else
- return sRGB((double)component / alpha);
-}
-#endif
-
-static png_uint_16
-ilinear(int fixed_srgb)
-{
- return u16d(65535 * sRGB_to_d[fixed_srgb]);
-}
-
-static png_uint_16
-ilineara(int fixed_srgb, int alpha)
-{
- return u16d((257 * alpha) * sRGB_to_d[fixed_srgb]);
-}
-
-static png_uint_16
-ilinear_g22(int fixed_srgb)
-{
- return u16d(65535 * g22_to_d[fixed_srgb]);
-}
-
-#if ALLOW_UNUSED_GPC
-static png_uint_16
-ilineara_g22(int fixed_srgb, int alpha)
-{
- return u16d((257 * alpha) * g22_to_d[fixed_srgb]);
-}
-#endif
-
-static double
-YfromRGBint(int ir, int ig, int ib)
-{
- double r = ir;
- double g = ig;
- double b = ib;
- return YfromRGB(r, g, b);
-}
-
-#if 0 /* unused */
-/* The error that results from using a 2.2 power law in place of the correct
- * sRGB transform, given an 8-bit value which might be either sRGB or power-law.
- */
-static int
-power_law_error8(int value)
-{
- if (value > 0 && value < 255)
- {
- double vd = value / 255.;
- double e = fabs(
- pow(sRGB_to_d[value], 1/2.2) - sRGB_from_linear(pow(vd, 2.2)));
-
- /* Always allow an extra 1 here for rounding errors */
- e = 1+floor(255 * e);
- return (int)e;
- }
-
- return 0;
-}
-
-static int error_in_sRGB_roundtrip = 56; /* by experiment */
-static int
-power_law_error16(int value)
-{
- if (value > 0 && value < 65535)
- {
- /* Round trip the value through an 8-bit representation but using
- * non-matching to/from conversions.
- */
- double vd = value / 65535.;
- double e = fabs(
- pow(sRGB_from_linear(vd), 2.2) - linear_from_sRGB(pow(vd, 1/2.2)));
-
- /* Always allow an extra 1 here for rounding errors */
- e = error_in_sRGB_roundtrip+floor(65535 * e);
- return (int)e;
- }
-
- return 0;
-}
-
-static int
-compare_8bit(int v1, int v2, int error_limit, int multiple_algorithms)
-{
- int e = abs(v1-v2);
- int ev1, ev2;
-
- if (e <= error_limit)
- return 1;
-
- if (!multiple_algorithms)
- return 0;
-
- ev1 = power_law_error8(v1);
- if (e <= ev1)
- return 1;
-
- ev2 = power_law_error8(v2);
- if (e <= ev2)
- return 1;
-
- return 0;
-}
-
-static int
-compare_16bit(int v1, int v2, int error_limit, int multiple_algorithms)
-{
- int e = abs(v1-v2);
- int ev1, ev2;
-
- if (e <= error_limit)
- return 1;
-
- /* "multiple_algorithms" in this case means that a color-map has been
- * involved somewhere, so we can deduce that the values were forced to 8-bit
- * (like the via_linear case for 8-bit.)
- */
- if (!multiple_algorithms)
- return 0;
-
- ev1 = power_law_error16(v1);
- if (e <= ev1)
- return 1;
-
- ev2 = power_law_error16(v2);
- if (e <= ev2)
- return 1;
-
- return 0;
-}
-#endif /* unused */
-
-#define USE_FILE 1 /* else memory */
-#define USE_STDIO 2 /* else use file name */
-#define STRICT 4 /* fail on warnings too */
-#define VERBOSE 8
-#define KEEP_TMPFILES 16 /* else delete temporary files */
-#define KEEP_GOING 32
-#define ACCUMULATE 64
-#define FAST_WRITE 128
-#define sRGB_16BIT 256
-#define NO_RESEED 512 /* do not reseed on each new file */
-#define GBG_ERROR 1024 /* do not ignore the gamma+background_rgb_to_gray
- * libpng warning. */
-
-static void
-print_opts(png_uint_32 opts)
-{
- if (opts & USE_FILE)
- printf(" --file");
- if (opts & USE_STDIO)
- printf(" --stdio");
- if (!(opts & STRICT))
- printf(" --nostrict");
- if (opts & VERBOSE)
- printf(" --verbose");
- if (opts & KEEP_TMPFILES)
- printf(" --preserve");
- if (opts & KEEP_GOING)
- printf(" --keep-going");
- if (opts & ACCUMULATE)
- printf(" --accumulate");
- if (!(opts & FAST_WRITE)) /* --fast is currently the default */
- printf(" --slow");
- if (opts & sRGB_16BIT)
- printf(" --sRGB-16bit");
- if (opts & NO_RESEED)
- printf(" --noreseed");
-#if PNG_LIBPNG_VER < 10700 /* else on by default */
- if (opts & GBG_ERROR)
- printf(" --fault-gbg-warning");
-#endif
-}
-
-#define FORMAT_NO_CHANGE 0x80000000 /* additional flag */
-
-/* A name table for all the formats - defines the format of the '+' arguments to
- * pngstest.
- */
-#define FORMAT_COUNT 64
-#define FORMAT_MASK 0x3f
-static const char * const format_names[FORMAT_COUNT] =
-{
- "sRGB-gray",
- "sRGB-gray+alpha",
- "sRGB-rgb",
- "sRGB-rgb+alpha",
- "linear-gray",
- "linear-gray+alpha",
- "linear-rgb",
- "linear-rgb+alpha",
-
- "color-mapped-sRGB-gray",
- "color-mapped-sRGB-gray+alpha",
- "color-mapped-sRGB-rgb",
- "color-mapped-sRGB-rgb+alpha",
- "color-mapped-linear-gray",
- "color-mapped-linear-gray+alpha",
- "color-mapped-linear-rgb",
- "color-mapped-linear-rgb+alpha",
-
- "sRGB-gray",
- "sRGB-gray+alpha",
- "sRGB-bgr",
- "sRGB-bgr+alpha",
- "linear-gray",
- "linear-gray+alpha",
- "linear-bgr",
- "linear-bgr+alpha",
-
- "color-mapped-sRGB-gray",
- "color-mapped-sRGB-gray+alpha",
- "color-mapped-sRGB-bgr",
- "color-mapped-sRGB-bgr+alpha",
- "color-mapped-linear-gray",
- "color-mapped-linear-gray+alpha",
- "color-mapped-linear-bgr",
- "color-mapped-linear-bgr+alpha",
-
- "sRGB-gray",
- "alpha+sRGB-gray",
- "sRGB-rgb",
- "alpha+sRGB-rgb",
- "linear-gray",
- "alpha+linear-gray",
- "linear-rgb",
- "alpha+linear-rgb",
-
- "color-mapped-sRGB-gray",
- "color-mapped-alpha+sRGB-gray",
- "color-mapped-sRGB-rgb",
- "color-mapped-alpha+sRGB-rgb",
- "color-mapped-linear-gray",
- "color-mapped-alpha+linear-gray",
- "color-mapped-linear-rgb",
- "color-mapped-alpha+linear-rgb",
-
- "sRGB-gray",
- "alpha+sRGB-gray",
- "sRGB-bgr",
- "alpha+sRGB-bgr",
- "linear-gray",
- "alpha+linear-gray",
- "linear-bgr",
- "alpha+linear-bgr",
-
- "color-mapped-sRGB-gray",
- "color-mapped-alpha+sRGB-gray",
- "color-mapped-sRGB-bgr",
- "color-mapped-alpha+sRGB-bgr",
- "color-mapped-linear-gray",
- "color-mapped-alpha+linear-gray",
- "color-mapped-linear-bgr",
- "color-mapped-alpha+linear-bgr",
-};
-
-/* Decode an argument to a format number. */
-static png_uint_32
-formatof(const char *arg)
-{
- char *ep;
- unsigned long format = strtoul(arg, &ep, 0);
-
- if (ep > arg && *ep == 0 && format < FORMAT_COUNT)
- return (png_uint_32)format;
-
- else for (format=0; format < FORMAT_COUNT; ++format)
- {
- if (strcmp(format_names[format], arg) == 0)
- return (png_uint_32)format;
- }
-
- fprintf(stderr, "pngstest: format name '%s' invalid\n", arg);
- return FORMAT_COUNT;
-}
-
-/* Bitset/test functions for formats */
-#define FORMAT_SET_COUNT (FORMAT_COUNT / 32)
-typedef struct
-{
- png_uint_32 bits[FORMAT_SET_COUNT];
-}
-format_list;
-
-static void format_init(format_list *pf)
-{
- int i;
- for (i=0; i<FORMAT_SET_COUNT; ++i)
- pf->bits[i] = 0; /* All off */
-}
-
-#if 0 /* currently unused */
-static void format_clear(format_list *pf)
-{
- int i;
- for (i=0; i<FORMAT_SET_COUNT; ++i)
- pf->bits[i] = 0;
-}
-#endif
-
-static int format_is_initial(format_list *pf)
-{
- int i;
- for (i=0; i<FORMAT_SET_COUNT; ++i)
- if (pf->bits[i] != 0)
- return 0;
-
- return 1;
-}
-
-static int format_set(format_list *pf, png_uint_32 format)
-{
- if (format < FORMAT_COUNT)
- return pf->bits[format >> 5] |= ((png_uint_32)1) << (format & 31);
-
- return 0;
-}
-
-#if 0 /* currently unused */
-static int format_unset(format_list *pf, png_uint_32 format)
-{
- if (format < FORMAT_COUNT)
- return pf->bits[format >> 5] &= ~((png_uint_32)1) << (format & 31);
-
- return 0;
-}
-#endif
-
-static int format_isset(format_list *pf, png_uint_32 format)
-{
- return format < FORMAT_COUNT &&
- (pf->bits[format >> 5] & (((png_uint_32)1) << (format & 31))) != 0;
-}
-
-static void format_default(format_list *pf, int redundant)
-{
- if (redundant)
- {
- int i;
-
- /* set everything, including flags that are pointless */
- for (i=0; i<FORMAT_SET_COUNT; ++i)
- pf->bits[i] = ~(png_uint_32)0;
- }
-
- else
- {
- png_uint_32 f;
-
- for (f=0; f<FORMAT_COUNT; ++f)
- {
- /* Eliminate redundant and unsupported settings. */
-# ifdef PNG_FORMAT_BGR_SUPPORTED
- /* BGR is meaningless if no color: */
- if ((f & PNG_FORMAT_FLAG_COLOR) == 0 &&
- (f & PNG_FORMAT_FLAG_BGR) != 0)
-# else
- if ((f & 0x10U/*HACK: fixed value*/) != 0)
-# endif
- continue;
-
- /* AFIRST is meaningless if no alpha: */
-# ifdef PNG_FORMAT_AFIRST_SUPPORTED
- if ((f & PNG_FORMAT_FLAG_ALPHA) == 0 &&
- (f & PNG_FORMAT_FLAG_AFIRST) != 0)
-# else
- if ((f & 0x20U/*HACK: fixed value*/) != 0)
-# endif
- continue;
-
- format_set(pf, f);
- }
- }
-}
-
-/* THE Image STRUCTURE */
-/* The super-class of a png_image, contains the decoded image plus the input
- * data necessary to re-read the file with a different format.
- */
-typedef struct
-{
- png_image image;
- png_uint_32 opts;
- const char *file_name;
- int stride_extra;
- FILE *input_file;
- png_voidp input_memory;
- size_t input_memory_size;
- png_bytep buffer;
- ptrdiff_t stride;
- size_t bufsize;
- size_t allocsize;
- char tmpfile_name[32];
- png_uint_16 colormap[256*4];
-}
-Image;
-
-/* Initializer: also sets the permitted error limit for 16-bit operations. */
-static void
-newimage(Image *image)
-{
- memset(image, 0, sizeof *image);
-}
-
-/* Reset the image to be read again - only needs to rewind the FILE* at present.
- */
-static void
-resetimage(Image *image)
-{
- if (image->input_file != NULL)
- rewind(image->input_file);
-}
-
-/* Free the image buffer; the buffer is re-used on a re-read, this is just for
- * cleanup.
- */
-static void
-freebuffer(Image *image)
-{
- if (image->buffer) free(image->buffer);
- image->buffer = NULL;
- image->bufsize = 0;
- image->allocsize = 0;
-}
-
-/* Delete function; cleans out all the allocated data and the temporary file in
- * the image.
- */
-static void
-freeimage(Image *image)
-{
- freebuffer(image);
- png_image_free(&image->image);
-
- if (image->input_file != NULL)
- {
- fclose(image->input_file);
- image->input_file = NULL;
- }
-
- if (image->input_memory != NULL)
- {
- free(image->input_memory);
- image->input_memory = NULL;
- image->input_memory_size = 0;
- }
-
- if (image->tmpfile_name[0] != 0 && (image->opts & KEEP_TMPFILES) == 0)
- {
- (void)remove(image->tmpfile_name);
- image->tmpfile_name[0] = 0;
- }
-}
-
-/* This is actually a re-initializer; allows an image structure to be re-used by
- * freeing everything that relates to an old image.
- */
-static void initimage(Image *image, png_uint_32 opts, const char *file_name,
- int stride_extra)
-{
- freeimage(image);
- memset(&image->image, 0, sizeof image->image);
- image->opts = opts;
- image->file_name = file_name;
- image->stride_extra = stride_extra;
-}
-
-/* Make sure the image buffer is big enough; allows re-use of the buffer if the
- * image is re-read.
- */
-#define BUFFER_INIT8 73
-static void
-allocbuffer(Image *image)
-{
- size_t size = PNG_IMAGE_BUFFER_SIZE(image->image, image->stride);
-
- if (size+32 > image->bufsize)
- {
- freebuffer(image);
- image->buffer = voidcast(png_bytep, malloc(size+32));
- if (image->buffer == NULL)
- {
- fflush(stdout);
- fprintf(stderr,
- "simpletest: out of memory allocating %lu(+32) byte buffer\n",
- (unsigned long)size);
- exit(1);
- }
- image->bufsize = size+32;
- }
-
- memset(image->buffer, 95, image->bufsize);
- memset(image->buffer+16, BUFFER_INIT8, size);
- image->allocsize = size;
-}
-
-/* Make sure 16 bytes match the given byte. */
-static int
-check16(png_const_bytep bp, int b)
-{
- int i = 16;
-
- do
- if (*bp != b) return 1;
- while (--i);
-
- return 0;
-}
-
-/* Check for overwrite in the image buffer. */
-static void
-checkbuffer(Image *image, const char *arg)
-{
- if (check16(image->buffer, 95))
- {
- fflush(stdout);
- fprintf(stderr, "%s: overwrite at start of image buffer\n", arg);
- exit(1);
- }
-
- if (check16(image->buffer+16+image->allocsize, 95))
- {
- fflush(stdout);
- fprintf(stderr, "%s: overwrite at end of image buffer\n", arg);
- exit(1);
- }
-}
-
-/* ERROR HANDLING */
-/* Log a terminal error, also frees the libpng part of the image if necessary.
- */
-static int
-logerror(Image *image, const char *a1, const char *a2, const char *a3)
-{
- fflush(stdout);
- if (image->image.warning_or_error)
- fprintf(stderr, "%s%s%s: %s\n", a1, a2, a3, image->image.message);
-
- else
- fprintf(stderr, "%s%s%s\n", a1, a2, a3);
-
- if (image->image.opaque != NULL)
- {
- fprintf(stderr, "%s: image opaque pointer non-NULL on error\n",
- image->file_name);
- png_image_free(&image->image);
- }
-
- return 0;
-}
-
-/* Log an error and close a file (just a utility to do both things in one
- * function call.)
- */
-static int
-logclose(Image *image, FILE *f, const char *name, const char *operation)
-{
- int e = errno;
-
- fclose(f);
- return logerror(image, name, operation, strerror(e));
-}
-
-/* Make sure the png_image has been freed - validates that libpng is doing what
- * the spec says and freeing the image.
- */
-static int
-checkopaque(Image *image)
-{
- if (image->image.opaque != NULL)
- {
- png_image_free(&image->image);
- return logerror(image, image->file_name, ": opaque not NULL", "");
- }
-
- /* Separate out the gamma+background_rgb_to_gray warning because it may
- * produce opaque component errors:
- */
- else if (image->image.warning_or_error != 0 &&
- (strcmp(image->image.message,
- "libpng does not support gamma+background+rgb_to_gray") == 0 ?
- (image->opts & GBG_ERROR) != 0 : (image->opts & STRICT) != 0))
- return logerror(image, image->file_name, (image->opts & GBG_ERROR) != 0 ?
- " --fault-gbg-warning" : " --strict", "");
-
- else
- return 1;
-}
-
-/* IMAGE COMPARISON/CHECKING */
-/* Compare the pixels of two images, which should be the same but aren't. The
- * images must have been checked for a size match.
- */
-typedef struct
-{
- /* The components, for grayscale images the gray value is in 'g' and if alpha
- * is not present 'a' is set to 255 or 65535 according to format.
- */
- int r, g, b, a;
-} Pixel;
-
-typedef struct
-{
- /* The background as the original sRGB 8-bit value converted to the final
- * integer format and as a double precision linear value in the range 0..1
- * for with partially transparent pixels.
- */
- int ir, ig, ib;
- double dr, dg, db; /* linear r,g,b scaled to 0..1 */
-} Background;
-
-/* Basic image formats; control the data but not the layout thereof. */
-#define BASE_FORMATS\
- (PNG_FORMAT_FLAG_ALPHA|PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_LINEAR)
-
-/* Read a Pixel from a buffer. The code below stores the correct routine for
- * the format in a function pointer, these are the routines:
- */
-static void
-gp_g8(Pixel *p, png_const_voidp pb)
-{
- png_const_bytep pp = voidcast(png_const_bytep, pb);
-
- p->r = p->g = p->b = pp[0];
- p->a = 255;
-}
-
-static void
-gp_ga8(Pixel *p, png_const_voidp pb)
-{
- png_const_bytep pp = voidcast(png_const_bytep, pb);
-
- p->r = p->g = p->b = pp[0];
- p->a = pp[1];
-}
-
-#ifdef PNG_FORMAT_AFIRST_SUPPORTED
-static void
-gp_ag8(Pixel *p, png_const_voidp pb)
-{
- png_const_bytep pp = voidcast(png_const_bytep, pb);
-
- p->r = p->g = p->b = pp[1];
- p->a = pp[0];
-}
-#endif
-
-static void
-gp_rgb8(Pixel *p, png_const_voidp pb)
-{
- png_const_bytep pp = voidcast(png_const_bytep, pb);
-
- p->r = pp[0];
- p->g = pp[1];
- p->b = pp[2];
- p->a = 255;
-}
-
-#ifdef PNG_FORMAT_BGR_SUPPORTED
-static void
-gp_bgr8(Pixel *p, png_const_voidp pb)
-{
- png_const_bytep pp = voidcast(png_const_bytep, pb);
-
- p->r = pp[2];
- p->g = pp[1];
- p->b = pp[0];
- p->a = 255;
-}
-#endif
-
-static void
-gp_rgba8(Pixel *p, png_const_voidp pb)
-{
- png_const_bytep pp = voidcast(png_const_bytep, pb);
-
- p->r = pp[0];
- p->g = pp[1];
- p->b = pp[2];
- p->a = pp[3];
-}
-
-#ifdef PNG_FORMAT_BGR_SUPPORTED
-static void
-gp_bgra8(Pixel *p, png_const_voidp pb)
-{
- png_const_bytep pp = voidcast(png_const_bytep, pb);
-
- p->r = pp[2];
- p->g = pp[1];
- p->b = pp[0];
- p->a = pp[3];
-}
-#endif
-
-#ifdef PNG_FORMAT_AFIRST_SUPPORTED
-static void
-gp_argb8(Pixel *p, png_const_voidp pb)
-{
- png_const_bytep pp = voidcast(png_const_bytep, pb);
-
- p->r = pp[1];
- p->g = pp[2];
- p->b = pp[3];
- p->a = pp[0];
-}
-#endif
-
-#if defined(PNG_FORMAT_AFIRST_SUPPORTED) && defined(PNG_FORMAT_BGR_SUPPORTED)
-static void
-gp_abgr8(Pixel *p, png_const_voidp pb)
-{
- png_const_bytep pp = voidcast(png_const_bytep, pb);
-
- p->r = pp[3];
- p->g = pp[2];
- p->b = pp[1];
- p->a = pp[0];
-}
-#endif
-
-static void
-gp_g16(Pixel *p, png_const_voidp pb)
-{
- png_const_uint_16p pp = voidcast(png_const_uint_16p, pb);
-
- p->r = p->g = p->b = pp[0];
- p->a = 65535;
-}
-
-static void
-gp_ga16(Pixel *p, png_const_voidp pb)
-{
- png_const_uint_16p pp = voidcast(png_const_uint_16p, pb);
-
- p->r = p->g = p->b = pp[0];
- p->a = pp[1];
-}
-
-#ifdef PNG_FORMAT_AFIRST_SUPPORTED
-static void
-gp_ag16(Pixel *p, png_const_voidp pb)
-{
- png_const_uint_16p pp = voidcast(png_const_uint_16p, pb);
-
- p->r = p->g = p->b = pp[1];
- p->a = pp[0];
-}
-#endif
-
-static void
-gp_rgb16(Pixel *p, png_const_voidp pb)
-{
- png_const_uint_16p pp = voidcast(png_const_uint_16p, pb);
-
- p->r = pp[0];
- p->g = pp[1];
- p->b = pp[2];
- p->a = 65535;
-}
-
-#ifdef PNG_FORMAT_BGR_SUPPORTED
-static void
-gp_bgr16(Pixel *p, png_const_voidp pb)
-{
- png_const_uint_16p pp = voidcast(png_const_uint_16p, pb);
-
- p->r = pp[2];
- p->g = pp[1];
- p->b = pp[0];
- p->a = 65535;
-}
-#endif
-
-static void
-gp_rgba16(Pixel *p, png_const_voidp pb)
-{
- png_const_uint_16p pp = voidcast(png_const_uint_16p, pb);
-
- p->r = pp[0];
- p->g = pp[1];
- p->b = pp[2];
- p->a = pp[3];
-}
-
-#ifdef PNG_FORMAT_BGR_SUPPORTED
-static void
-gp_bgra16(Pixel *p, png_const_voidp pb)
-{
- png_const_uint_16p pp = voidcast(png_const_uint_16p, pb);
-
- p->r = pp[2];
- p->g = pp[1];
- p->b = pp[0];
- p->a = pp[3];
-}
-#endif
-
-#ifdef PNG_FORMAT_AFIRST_SUPPORTED
-static void
-gp_argb16(Pixel *p, png_const_voidp pb)
-{
- png_const_uint_16p pp = voidcast(png_const_uint_16p, pb);
-
- p->r = pp[1];
- p->g = pp[2];
- p->b = pp[3];
- p->a = pp[0];
-}
-#endif
-
-#if defined(PNG_FORMAT_AFIRST_SUPPORTED) && defined(PNG_FORMAT_BGR_SUPPORTED)
-static void
-gp_abgr16(Pixel *p, png_const_voidp pb)
-{
- png_const_uint_16p pp = voidcast(png_const_uint_16p, pb);
-
- p->r = pp[3];
- p->g = pp[2];
- p->b = pp[1];
- p->a = pp[0];
-}
-#endif
-
-/* Given a format, return the correct one of the above functions. */
-static void (*
-get_pixel(png_uint_32 format))(Pixel *p, png_const_voidp pb)
-{
- /* The color-map flag is irrelevant here - the caller of the function
- * returned must either pass the buffer or, for a color-mapped image, the
- * correct entry in the color-map.
- */
- if (format & PNG_FORMAT_FLAG_LINEAR)
- {
- if (format & PNG_FORMAT_FLAG_COLOR)
- {
-# ifdef PNG_FORMAT_BGR_SUPPORTED
- if (format & PNG_FORMAT_FLAG_BGR)
- {
- if (format & PNG_FORMAT_FLAG_ALPHA)
- {
-# ifdef PNG_FORMAT_AFIRST_SUPPORTED
- if (format & PNG_FORMAT_FLAG_AFIRST)
- return gp_abgr16;
-
- else
-# endif
- return gp_bgra16;
- }
-
- else
- return gp_bgr16;
- }
-
- else
-# endif
- {
- if (format & PNG_FORMAT_FLAG_ALPHA)
- {
-# ifdef PNG_FORMAT_AFIRST_SUPPORTED
- if (format & PNG_FORMAT_FLAG_AFIRST)
- return gp_argb16;
-
- else
-# endif
- return gp_rgba16;
- }
-
- else
- return gp_rgb16;
- }
- }
-
- else
- {
- if (format & PNG_FORMAT_FLAG_ALPHA)
- {
-# ifdef PNG_FORMAT_AFIRST_SUPPORTED
- if (format & PNG_FORMAT_FLAG_AFIRST)
- return gp_ag16;
-
- else
-# endif
- return gp_ga16;
- }
-
- else
- return gp_g16;
- }
- }
-
- else
- {
- if (format & PNG_FORMAT_FLAG_COLOR)
- {
-# ifdef PNG_FORMAT_BGR_SUPPORTED
- if (format & PNG_FORMAT_FLAG_BGR)
- {
- if (format & PNG_FORMAT_FLAG_ALPHA)
- {
-# ifdef PNG_FORMAT_AFIRST_SUPPORTED
- if (format & PNG_FORMAT_FLAG_AFIRST)
- return gp_abgr8;
-
- else
-# endif
- return gp_bgra8;
- }
-
- else
- return gp_bgr8;
- }
-
- else
-# endif
- {
- if (format & PNG_FORMAT_FLAG_ALPHA)
- {
-# ifdef PNG_FORMAT_AFIRST_SUPPORTED
- if (format & PNG_FORMAT_FLAG_AFIRST)
- return gp_argb8;
-
- else
-# endif
- return gp_rgba8;
- }
-
- else
- return gp_rgb8;
- }
- }
-
- else
- {
- if (format & PNG_FORMAT_FLAG_ALPHA)
- {
-# ifdef PNG_FORMAT_AFIRST_SUPPORTED
- if (format & PNG_FORMAT_FLAG_AFIRST)
- return gp_ag8;
-
- else
-# endif
- return gp_ga8;
- }
-
- else
- return gp_g8;
- }
- }
-}
-
-/* Conversion between pixel formats. The code above effectively eliminates the
- * component ordering changes leaving three basic changes:
- *
- * 1) Remove an alpha channel by pre-multiplication or compositing on a
- * background color. (Adding an alpha channel is a no-op.)
- *
- * 2) Remove color by mapping to grayscale. (Grayscale to color is a no-op.)
- *
- * 3) Convert between 8-bit and 16-bit components. (Both directtions are
- * relevant.)
- *
- * This gives the following base format conversion matrix:
- *
- * OUT: ----- 8-bit ----- ----- 16-bit -----
- * IN G GA RGB RGBA G GA RGB RGBA
- * 8 G . . . . lin lin lin lin
- * 8 GA bckg . bckc . pre' pre pre' pre
- * 8 RGB g8 g8 . . glin glin lin lin
- * 8 RGBA g8b g8 bckc . gpr' gpre pre' pre
- * 16 G sRGB sRGB sRGB sRGB . . . .
- * 16 GA b16g unpg b16c unpc A . A .
- * 16 RGB sG sG sRGB sRGB g16 g16 . .
- * 16 RGBA gb16 sGp cb16 sCp g16 g16' A .
- *
- * 8-bit to 8-bit:
- * bckg: composite on gray background
- * bckc: composite on color background
- * g8: convert sRGB components to sRGB grayscale
- * g8b: convert sRGB components to grayscale and composite on gray background
- *
- * 8-bit to 16-bit:
- * lin: make sRGB components linear, alpha := 65535
- * pre: make sRGB components linear and premultiply by alpha (scale alpha)
- * pre': as 'pre' but alpha := 65535
- * glin: make sRGB components linear, convert to grayscale, alpha := 65535
- * gpre: make sRGB components grayscale and linear and premultiply by alpha
- * gpr': as 'gpre' but alpha := 65535
- *
- * 16-bit to 8-bit:
- * sRGB: convert linear components to sRGB, alpha := 255
- * unpg: unpremultiply gray component and convert to sRGB (scale alpha)
- * unpc: unpremultiply color components and convert to sRGB (scale alpha)
- * b16g: composite linear onto gray background and convert the result to sRGB
- * b16c: composite linear onto color background and convert the result to sRGB
- * sG: convert linear RGB to sRGB grayscale
- * sGp: unpremultiply RGB then convert to sRGB grayscale
- * sCp: unpremultiply RGB then convert to sRGB
- * gb16: composite linear onto background and convert to sRGB grayscale
- * (order doesn't matter, the composite and grayscale operations permute)
- * cb16: composite linear onto background and convert to sRGB
- *
- * 16-bit to 16-bit:
- * A: set alpha to 65535
- * g16: convert linear RGB to linear grayscale (alpha := 65535)
- * g16': as 'g16' but alpha is unchanged
- */
-/* Simple copy: */
-static void
-gpc_noop(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
- out->r = in->r;
- out->g = in->g;
- out->b = in->b;
- out->a = in->a;
-}
-
-#if ALLOW_UNUSED_GPC
-static void
-gpc_nop8(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
- if (in->a == 0)
- out->r = out->g = out->b = 255;
-
- else
- {
- out->r = in->r;
- out->g = in->g;
- out->b = in->b;
- }
-
- out->a = in->a;
-}
-#endif
-
-#if ALLOW_UNUSED_GPC
-static void
-gpc_nop6(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
- if (in->a == 0)
- out->r = out->g = out->b = 65535;
-
- else
- {
- out->r = in->r;
- out->g = in->g;
- out->b = in->b;
- }
-
- out->a = in->a;
-}
-#endif
-
-/* 8-bit to 8-bit conversions */
-/* bckg: composite on gray background */
-static void
-gpc_bckg(Pixel *out, const Pixel *in, const Background *back)
-{
- if (in->a <= 0)
- out->r = out->g = out->b = back->ig;
-
- else if (in->a >= 255)
- out->r = out->g = out->b = in->g;
-
- else
- {
- double a = in->a / 255.;
-
- out->r = out->g = out->b = sRGB(sRGB_to_d[in->g] * a + back->dg * (1-a));
- }
-
- out->a = 255;
-}
-
-/* bckc: composite on color background */
-static void
-gpc_bckc(Pixel *out, const Pixel *in, const Background *back)
-{
- if (in->a <= 0)
- {
- out->r = back->ir;
- out->g = back->ig;
- out->b = back->ib;
- }
-
- else if (in->a >= 255)
- {
- out->r = in->r;
- out->g = in->g;
- out->b = in->b;
- }
-
- else
- {
- double a = in->a / 255.;
-
- out->r = sRGB(sRGB_to_d[in->r] * a + back->dr * (1-a));
- out->g = sRGB(sRGB_to_d[in->g] * a + back->dg * (1-a));
- out->b = sRGB(sRGB_to_d[in->b] * a + back->db * (1-a));
- }
-
- out->a = 255;
-}
-
-/* g8: convert sRGB components to sRGB grayscale */
-static void
-gpc_g8(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- if (in->r == in->g && in->g == in->b)
- out->r = out->g = out->b = in->g;
-
- else
- out->r = out->g = out->b =
- sRGB(YfromRGB(sRGB_to_d[in->r], sRGB_to_d[in->g], sRGB_to_d[in->b]));
-
- out->a = in->a;
-}
-
-/* g8b: convert sRGB components to grayscale and composite on gray background */
-static void
-gpc_g8b(Pixel *out, const Pixel *in, const Background *back)
-{
- if (in->a <= 0)
- out->r = out->g = out->b = back->ig;
-
- else if (in->a >= 255)
- {
- if (in->r == in->g && in->g == in->b)
- out->r = out->g = out->b = in->g;
-
- else
- out->r = out->g = out->b = sRGB(YfromRGB(
- sRGB_to_d[in->r], sRGB_to_d[in->g], sRGB_to_d[in->b]));
- }
-
- else
- {
- double a = in->a/255.;
-
- out->r = out->g = out->b = sRGB(a * YfromRGB(sRGB_to_d[in->r],
- sRGB_to_d[in->g], sRGB_to_d[in->b]) + back->dg * (1-a));
- }
-
- out->a = 255;
-}
-
-/* 8-bit to 16-bit conversions */
-/* lin: make sRGB components linear, alpha := 65535 */
-static void
-gpc_lin(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- out->r = ilinear(in->r);
-
- if (in->g == in->r)
- {
- out->g = out->r;
-
- if (in->b == in->r)
- out->b = out->r;
-
- else
- out->b = ilinear(in->b);
- }
-
- else
- {
- out->g = ilinear(in->g);
-
- if (in->b == in->r)
- out->b = out->r;
-
- else if (in->b == in->g)
- out->b = out->g;
-
- else
- out->b = ilinear(in->b);
- }
-
- out->a = 65535;
-}
-
-/* pre: make sRGB components linear and premultiply by alpha (scale alpha) */
-static void
-gpc_pre(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- out->r = ilineara(in->r, in->a);
-
- if (in->g == in->r)
- {
- out->g = out->r;
-
- if (in->b == in->r)
- out->b = out->r;
-
- else
- out->b = ilineara(in->b, in->a);
- }
-
- else
- {
- out->g = ilineara(in->g, in->a);
-
- if (in->b == in->r)
- out->b = out->r;
-
- else if (in->b == in->g)
- out->b = out->g;
-
- else
- out->b = ilineara(in->b, in->a);
- }
-
- out->a = in->a * 257;
-}
-
-/* pre': as 'pre' but alpha := 65535 */
-static void
-gpc_preq(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- out->r = ilineara(in->r, in->a);
-
- if (in->g == in->r)
- {
- out->g = out->r;
-
- if (in->b == in->r)
- out->b = out->r;
-
- else
- out->b = ilineara(in->b, in->a);
- }
-
- else
- {
- out->g = ilineara(in->g, in->a);
-
- if (in->b == in->r)
- out->b = out->r;
-
- else if (in->b == in->g)
- out->b = out->g;
-
- else
- out->b = ilineara(in->b, in->a);
- }
-
- out->a = 65535;
-}
-
-/* glin: make sRGB components linear, convert to grayscale, alpha := 65535 */
-static void
-gpc_glin(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- if (in->r == in->g && in->g == in->b)
- out->r = out->g = out->b = ilinear(in->g);
-
- else
- out->r = out->g = out->b = u16d(65535 *
- YfromRGB(sRGB_to_d[in->r], sRGB_to_d[in->g], sRGB_to_d[in->b]));
-
- out->a = 65535;
-}
-
-/* gpre: make sRGB components grayscale and linear and premultiply by alpha */
-static void
-gpc_gpre(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- if (in->r == in->g && in->g == in->b)
- out->r = out->g = out->b = ilineara(in->g, in->a);
-
- else
- out->r = out->g = out->b = u16d(in->a * 257 *
- YfromRGB(sRGB_to_d[in->r], sRGB_to_d[in->g], sRGB_to_d[in->b]));
-
- out->a = 257 * in->a;
-}
-
-/* gpr': as 'gpre' but alpha := 65535 */
-static void
-gpc_gprq(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- if (in->r == in->g && in->g == in->b)
- out->r = out->g = out->b = ilineara(in->g, in->a);
-
- else
- out->r = out->g = out->b = u16d(in->a * 257 *
- YfromRGB(sRGB_to_d[in->r], sRGB_to_d[in->g], sRGB_to_d[in->b]));
-
- out->a = 65535;
-}
-
-/* 8-bit to 16-bit conversions for gAMA 45455 encoded values */
-/* Lin: make gAMA 45455 components linear, alpha := 65535 */
-static void
-gpc_Lin(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- out->r = ilinear_g22(in->r);
-
- if (in->g == in->r)
- {
- out->g = out->r;
-
- if (in->b == in->r)
- out->b = out->r;
-
- else
- out->b = ilinear_g22(in->b);
- }
-
- else
- {
- out->g = ilinear_g22(in->g);
-
- if (in->b == in->r)
- out->b = out->r;
-
- else if (in->b == in->g)
- out->b = out->g;
-
- else
- out->b = ilinear_g22(in->b);
- }
-
- out->a = 65535;
-}
-
-#if ALLOW_UNUSED_GPC
-/* Pre: make gAMA 45455 components linear and premultiply by alpha (scale alpha)
- */
-static void
-gpc_Pre(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- out->r = ilineara_g22(in->r, in->a);
-
- if (in->g == in->r)
- {
- out->g = out->r;
-
- if (in->b == in->r)
- out->b = out->r;
-
- else
- out->b = ilineara_g22(in->b, in->a);
- }
-
- else
- {
- out->g = ilineara_g22(in->g, in->a);
-
- if (in->b == in->r)
- out->b = out->r;
-
- else if (in->b == in->g)
- out->b = out->g;
-
- else
- out->b = ilineara_g22(in->b, in->a);
- }
-
- out->a = in->a * 257;
-}
-#endif
-
-#if ALLOW_UNUSED_GPC
-/* Pre': as 'Pre' but alpha := 65535 */
-static void
-gpc_Preq(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- out->r = ilineara_g22(in->r, in->a);
-
- if (in->g == in->r)
- {
- out->g = out->r;
-
- if (in->b == in->r)
- out->b = out->r;
-
- else
- out->b = ilineara_g22(in->b, in->a);
- }
-
- else
- {
- out->g = ilineara_g22(in->g, in->a);
-
- if (in->b == in->r)
- out->b = out->r;
-
- else if (in->b == in->g)
- out->b = out->g;
-
- else
- out->b = ilineara_g22(in->b, in->a);
- }
-
- out->a = 65535;
-}
-#endif
-
-#if ALLOW_UNUSED_GPC
-/* Glin: make gAMA 45455 components linear, convert to grayscale, alpha := 65535
- */
-static void
-gpc_Glin(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- if (in->r == in->g && in->g == in->b)
- out->r = out->g = out->b = ilinear_g22(in->g);
-
- else
- out->r = out->g = out->b = u16d(65535 *
- YfromRGB(g22_to_d[in->r], g22_to_d[in->g], g22_to_d[in->b]));
-
- out->a = 65535;
-}
-#endif
-
-#if ALLOW_UNUSED_GPC
-/* Gpre: make gAMA 45455 components grayscale and linear and premultiply by
- * alpha.
- */
-static void
-gpc_Gpre(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- if (in->r == in->g && in->g == in->b)
- out->r = out->g = out->b = ilineara_g22(in->g, in->a);
-
- else
- out->r = out->g = out->b = u16d(in->a * 257 *
- YfromRGB(g22_to_d[in->r], g22_to_d[in->g], g22_to_d[in->b]));
-
- out->a = 257 * in->a;
-}
-#endif
-
-#if ALLOW_UNUSED_GPC
-/* Gpr': as 'Gpre' but alpha := 65535 */
-static void
-gpc_Gprq(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- if (in->r == in->g && in->g == in->b)
- out->r = out->g = out->b = ilineara_g22(in->g, in->a);
-
- else
- out->r = out->g = out->b = u16d(in->a * 257 *
- YfromRGB(g22_to_d[in->r], g22_to_d[in->g], g22_to_d[in->b]));
-
- out->a = 65535;
-}
-#endif
-
-/* 16-bit to 8-bit conversions */
-/* sRGB: convert linear components to sRGB, alpha := 255 */
-static void
-gpc_sRGB(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- out->r = isRGB(in->r);
-
- if (in->g == in->r)
- {
- out->g = out->r;
-
- if (in->b == in->r)
- out->b = out->r;
-
- else
- out->b = isRGB(in->b);
- }
-
- else
- {
- out->g = isRGB(in->g);
-
- if (in->b == in->r)
- out->b = out->r;
-
- else if (in->b == in->g)
- out->b = out->g;
-
- else
- out->b = isRGB(in->b);
- }
-
- out->a = 255;
-}
-
-/* unpg: unpremultiply gray component and convert to sRGB (scale alpha) */
-static void
-gpc_unpg(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- if (in->a <= 128)
- {
- out->r = out->g = out->b = 255;
- out->a = 0;
- }
-
- else
- {
- out->r = out->g = out->b = sRGB((double)in->g / in->a);
- out->a = u8d(in->a / 257.);
- }
-}
-
-/* unpc: unpremultiply color components and convert to sRGB (scale alpha) */
-static void
-gpc_unpc(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- if (in->a <= 128)
- {
- out->r = out->g = out->b = 255;
- out->a = 0;
- }
-
- else
- {
- out->r = sRGB((double)in->r / in->a);
- out->g = sRGB((double)in->g / in->a);
- out->b = sRGB((double)in->b / in->a);
- out->a = u8d(in->a / 257.);
- }
-}
-
-/* b16g: composite linear onto gray background and convert the result to sRGB */
-static void
-gpc_b16g(Pixel *out, const Pixel *in, const Background *back)
-{
- if (in->a <= 0)
- out->r = out->g = out->b = back->ig;
-
- else
- {
- double a = in->a/65535.;
- double a1 = 1-a;
-
- a /= 65535;
- out->r = out->g = out->b = sRGB(in->g * a + back->dg * a1);
- }
-
- out->a = 255;
-}
-
-/* b16c: composite linear onto color background and convert the result to sRGB*/
-static void
-gpc_b16c(Pixel *out, const Pixel *in, const Background *back)
-{
- if (in->a <= 0)
- {
- out->r = back->ir;
- out->g = back->ig;
- out->b = back->ib;
- }
-
- else
- {
- double a = in->a/65535.;
- double a1 = 1-a;
-
- a /= 65535;
- out->r = sRGB(in->r * a + back->dr * a1);
- out->g = sRGB(in->g * a + back->dg * a1);
- out->b = sRGB(in->b * a + back->db * a1);
- }
-
- out->a = 255;
-}
-
-/* sG: convert linear RGB to sRGB grayscale */
-static void
-gpc_sG(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- out->r = out->g = out->b = sRGB(YfromRGBint(in->r, in->g, in->b)/65535);
- out->a = 255;
-}
-
-/* sGp: unpremultiply RGB then convert to sRGB grayscale */
-static void
-gpc_sGp(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- if (in->a <= 128)
- {
- out->r = out->g = out->b = 255;
- out->a = 0;
- }
-
- else
- {
- out->r = out->g = out->b = sRGB(YfromRGBint(in->r, in->g, in->b)/in->a);
- out->a = u8d(in->a / 257.);
- }
-}
-
-/* sCp: unpremultiply RGB then convert to sRGB */
-static void
-gpc_sCp(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
-
- if (in->a <= 128)
- {
- out->r = out->g = out->b = 255;
- out->a = 0;
- }
-
- else
- {
- out->r = sRGB((double)in->r / in->a);
- out->g = sRGB((double)in->g / in->a);
- out->b = sRGB((double)in->b / in->a);
- out->a = u8d(in->a / 257.);
- }
-}
-
-/* gb16: composite linear onto background and convert to sRGB grayscale */
-/* (order doesn't matter, the composite and grayscale operations permute) */
-static void
-gpc_gb16(Pixel *out, const Pixel *in, const Background *back)
-{
- if (in->a <= 0)
- out->r = out->g = out->b = back->ig;
-
- else if (in->a >= 65535)
- out->r = out->g = out->b = isRGB(in->g);
-
- else
- {
- double a = in->a / 65535.;
- double a1 = 1-a;
-
- a /= 65535;
- out->r = out->g = out->b = sRGB(in->g * a + back->dg * a1);
- }
-
- out->a = 255;
-}
-
-/* cb16: composite linear onto background and convert to sRGB */
-static void
-gpc_cb16(Pixel *out, const Pixel *in, const Background *back)
-{
- if (in->a <= 0)
- {
- out->r = back->ir;
- out->g = back->ig;
- out->b = back->ib;
- }
-
- else if (in->a >= 65535)
- {
- out->r = isRGB(in->r);
- out->g = isRGB(in->g);
- out->b = isRGB(in->b);
- }
-
- else
- {
- double a = in->a / 65535.;
- double a1 = 1-a;
-
- a /= 65535;
- out->r = sRGB(in->r * a + back->dr * a1);
- out->g = sRGB(in->g * a + back->dg * a1);
- out->b = sRGB(in->b * a + back->db * a1);
- }
-
- out->a = 255;
-}
-
-/* 16-bit to 16-bit conversions */
-/* A: set alpha to 65535 */
-static void
-gpc_A(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
- out->r = in->r;
- out->g = in->g;
- out->b = in->b;
- out->a = 65535;
-}
-
-/* g16: convert linear RGB to linear grayscale (alpha := 65535) */
-static void
-gpc_g16(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
- out->r = out->g = out->b = u16d(YfromRGBint(in->r, in->g, in->b));
- out->a = 65535;
-}
-
-/* g16': as 'g16' but alpha is unchanged */
-static void
-gpc_g16q(Pixel *out, const Pixel *in, const Background *back)
-{
- (void)back;
- out->r = out->g = out->b = u16d(YfromRGBint(in->r, in->g, in->b));
- out->a = in->a;
-}
-
-#if ALLOW_UNUSED_GPC
-/* Unused functions (to hide them from GCC unused function warnings) */
-void (* const gpc_unused[])
- (Pixel *out, const Pixel *in, const Background *back) =
-{
- gpc_Pre, gpc_Preq, gpc_Glin, gpc_Gpre, gpc_Gprq, gpc_nop8, gpc_nop6
-};
-#endif
-
-/* OUT: ----- 8-bit ----- ----- 16-bit -----
- * IN G GA RGB RGBA G GA RGB RGBA
- * 8 G . . . . lin lin lin lin
- * 8 GA bckg . bckc . pre' pre pre' pre
- * 8 RGB g8 g8 . . glin glin lin lin
- * 8 RGBA g8b g8 bckc . gpr' gpre pre' pre
- * 16 G sRGB sRGB sRGB sRGB . . . .
- * 16 GA b16g unpg b16c unpc A . A .
- * 16 RGB sG sG sRGB sRGB g16 g16 . .
- * 16 RGBA gb16 sGp cb16 sCp g16 g16' A .
- *
- * The matrix is held in an array indexed thus:
- *
- * gpc_fn[out_format & BASE_FORMATS][in_format & BASE_FORMATS];
- */
-/* This will produce a compile time error if the FORMAT_FLAG values don't
- * match the above matrix!
- */
-#if PNG_FORMAT_FLAG_ALPHA == 1 && PNG_FORMAT_FLAG_COLOR == 2 &&\
- PNG_FORMAT_FLAG_LINEAR == 4
-static void (* const gpc_fn[8/*in*/][8/*out*/])
- (Pixel *out, const Pixel *in, const Background *back) =
-{
-/*out: G-8 GA-8 RGB-8 RGBA-8 G-16 GA-16 RGB-16 RGBA-16 */
- {gpc_noop,gpc_noop,gpc_noop,gpc_noop, gpc_Lin, gpc_Lin, gpc_Lin, gpc_Lin },
- {gpc_bckg,gpc_noop,gpc_bckc,gpc_noop, gpc_preq,gpc_pre, gpc_preq,gpc_pre },
- {gpc_g8, gpc_g8, gpc_noop,gpc_noop, gpc_glin,gpc_glin,gpc_lin, gpc_lin },
- {gpc_g8b, gpc_g8, gpc_bckc,gpc_noop, gpc_gprq,gpc_gpre,gpc_preq,gpc_pre },
- {gpc_sRGB,gpc_sRGB,gpc_sRGB,gpc_sRGB, gpc_noop,gpc_noop,gpc_noop,gpc_noop},
- {gpc_b16g,gpc_unpg,gpc_b16c,gpc_unpc, gpc_A, gpc_noop,gpc_A, gpc_noop},
- {gpc_sG, gpc_sG, gpc_sRGB,gpc_sRGB, gpc_g16, gpc_g16, gpc_noop,gpc_noop},
- {gpc_gb16,gpc_sGp, gpc_cb16,gpc_sCp, gpc_g16, gpc_g16q,gpc_A, gpc_noop}
-};
-
-/* The array is repeated for the cases where both the input and output are color
- * mapped because then different algorithms are used.
- */
-static void (* const gpc_fn_colormapped[8/*in*/][8/*out*/])
- (Pixel *out, const Pixel *in, const Background *back) =
-{
-/*out: G-8 GA-8 RGB-8 RGBA-8 G-16 GA-16 RGB-16 RGBA-16 */
- {gpc_noop,gpc_noop,gpc_noop,gpc_noop, gpc_lin, gpc_lin, gpc_lin, gpc_lin },
- {gpc_bckg,gpc_noop,gpc_bckc,gpc_noop, gpc_preq,gpc_pre, gpc_preq,gpc_pre },
- {gpc_g8, gpc_g8, gpc_noop,gpc_noop, gpc_glin,gpc_glin,gpc_lin, gpc_lin },
- {gpc_g8b, gpc_g8, gpc_bckc,gpc_noop, gpc_gprq,gpc_gpre,gpc_preq,gpc_pre },
- {gpc_sRGB,gpc_sRGB,gpc_sRGB,gpc_sRGB, gpc_noop,gpc_noop,gpc_noop,gpc_noop},
- {gpc_b16g,gpc_unpg,gpc_b16c,gpc_unpc, gpc_A, gpc_noop,gpc_A, gpc_noop},
- {gpc_sG, gpc_sG, gpc_sRGB,gpc_sRGB, gpc_g16, gpc_g16, gpc_noop,gpc_noop},
- {gpc_gb16,gpc_sGp, gpc_cb16,gpc_sCp, gpc_g16, gpc_g16q,gpc_A, gpc_noop}
-};
-
-/* The error arrays record the error in the same matrix; 64 entries, however
- * the different algorithms used in libpng for colormap and direct conversions
- * mean that four separate matrices are used (for each combination of
- * colormapped and direct.)
- *
- * In some cases the conversion between sRGB formats goes via a linear
- * intermediate; an sRGB to linear conversion (as above) is followed by a simple
- * linear to sRGB step with no other conversions. This is done by a separate
- * error array from an arbitrary 'in' format to one of the four basic outputs
- * (since final output is always sRGB not colormapped).
- *
- * These arrays may be modified if the --accumulate flag is set during the run;
- * then instead of logging errors they are simply added in.
- *
- * The three entries are currently for transparent, partially transparent and
- * opaque input pixel values. Notice that alpha should be exact in each case.
- *
- * Errors in alpha should only occur when converting from a direct format
- * to a colormapped format, when alpha is effectively smashed (so large
- * errors can occur.) There should be no error in the '0' and 'opaque'
- * values. The fourth entry in the array is used for the alpha error (and it
- * should always be zero for the 'via linear' case since this is never color
- * mapped.)
- *
- * Mapping to a colormap smashes the colors, it is necessary to have separate
- * values for these cases because they are much larger; it is very much
- * impossible to obtain a reasonable result, these are held in
- * gpc_error_to_colormap.
- */
-#if PNG_FORMAT_FLAG_COLORMAP == 8 /* extra check also required */
-# include "pngstest-errors.h" /* machine generated */
-#endif /* COLORMAP flag check */
-#endif /* flag checks */
-
-typedef struct
-{
- /* Basic pixel information: */
- Image* in_image; /* Input image */
- const Image* out_image; /* Output image */
-
- /* 'background' is the value passed to the gpc_ routines, it may be NULL if
- * it should not be used (*this* program has an error if it crashes as a
- * result!)
- */
- Background background_color;
- const Background* background;
-
- /* Precalculated values: */
- int in_opaque; /* Value of input alpha that is opaque */
- int is_palette; /* Sample values come from the palette */
- int accumulate; /* Accumulate component errors (don't log) */
- int output_8bit; /* Output is 8-bit (else 16-bit) */
-
- void (*in_gp)(Pixel*, png_const_voidp);
- void (*out_gp)(Pixel*, png_const_voidp);
-
- void (*transform)(Pixel *out, const Pixel *in, const Background *back);
- /* A function to perform the required transform */
-
- void (*from_linear)(Pixel *out, const Pixel *in, const Background *back);
- /* For 'via_linear' transforms the final, from linear, step, else NULL */
-
- png_uint_16 error[4];
- /* Three error values for transparent, partially transparent and opaque
- * input pixels (in turn).
- */
-
- png_uint_16 *error_ptr;
- /* Where these are stored in the static array (for 'accumulate') */
-}
-Transform;
-
-/* Return a 'transform' as above for the given format conversion. */
-static void
-transform_from_formats(Transform *result, Image *in_image,
- const Image *out_image, png_const_colorp background, int via_linear)
-{
- png_uint_32 in_format, out_format;
- png_uint_32 in_base, out_base;
-
- memset(result, 0, sizeof *result);
-
- /* Store the original images for error messages */
- result->in_image = in_image;
- result->out_image = out_image;
-
- in_format = in_image->image.format;
- out_format = out_image->image.format;
-
- if (in_format & PNG_FORMAT_FLAG_LINEAR)
- result->in_opaque = 65535;
- else
- result->in_opaque = 255;
-
- result->output_8bit = (out_format & PNG_FORMAT_FLAG_LINEAR) == 0;
-
- result->is_palette = 0; /* set by caller if required */
- result->accumulate = (in_image->opts & ACCUMULATE) != 0;
-
- /* The loaders (which need the ordering information) */
- result->in_gp = get_pixel(in_format);
- result->out_gp = get_pixel(out_format);
-
- /* Remove the ordering information: */
- in_format &= BASE_FORMATS | PNG_FORMAT_FLAG_COLORMAP;
- in_base = in_format & BASE_FORMATS;
- out_format &= BASE_FORMATS | PNG_FORMAT_FLAG_COLORMAP;
- out_base = out_format & BASE_FORMATS;
-
- if (via_linear)
- {
- /* Check for an error in this program: */
- if (out_format & (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLORMAP))
- {
- fprintf(stderr, "internal transform via linear error 0x%x->0x%x\n",
- in_format, out_format);
- exit(1);
- }
-
- result->transform = gpc_fn[in_base][out_base | PNG_FORMAT_FLAG_LINEAR];
- result->from_linear = gpc_fn[out_base | PNG_FORMAT_FLAG_LINEAR][out_base];
- result->error_ptr = gpc_error_via_linear[in_format][out_format];
- }
-
- else if (~in_format & out_format & PNG_FORMAT_FLAG_COLORMAP)
- {
- /* The input is not colormapped but the output is, the errors will
- * typically be large (only the grayscale-no-alpha case permits preserving
- * even 8-bit values.)
- */
- result->transform = gpc_fn[in_base][out_base];
- result->from_linear = NULL;
- result->error_ptr = gpc_error_to_colormap[in_base][out_base];
- }
-
- else
- {
- /* The caller handles the colormap->pixel value conversion, so the
- * transform function just gets a pixel value, however because libpng
- * currently contains a different implementation for mapping a colormap if
- * both input and output are colormapped we need different conversion
- * functions to deal with errors in the libpng implementation.
- */
- if (in_format & out_format & PNG_FORMAT_FLAG_COLORMAP)
- result->transform = gpc_fn_colormapped[in_base][out_base];
- else
- result->transform = gpc_fn[in_base][out_base];
- result->from_linear = NULL;
- result->error_ptr = gpc_error[in_format][out_format];
- }
-
- /* Follow the libpng simplified API rules to work out what to pass to the gpc
- * routines as a background value, if one is not required pass NULL so that
- * this program crashes in the even of a programming error.
- */
- result->background = NULL; /* default: not required */
-
- /* Rule 1: background only need be supplied if alpha is to be removed */
- if (in_format & ~out_format & PNG_FORMAT_FLAG_ALPHA)
- {
- /* The input value is 'NULL' to use the background and (otherwise) an sRGB
- * background color (to use a solid color). The code above uses a fixed
- * byte value, BUFFER_INIT8, for buffer even for 16-bit output. For
- * linear (16-bit) output the sRGB background color is ignored; the
- * composition is always on the background (so BUFFER_INIT8 * 257), except
- * that for the colormap (i.e. linear colormapped output) black is used.
- */
- result->background = &result->background_color;
-
- if (out_format & PNG_FORMAT_FLAG_LINEAR || via_linear)
- {
- if (out_format & PNG_FORMAT_FLAG_COLORMAP)
- {
- result->background_color.ir =
- result->background_color.ig =
- result->background_color.ib = 0;
- result->background_color.dr =
- result->background_color.dg =
- result->background_color.db = 0;
- }
-
- else
- {
- result->background_color.ir =
- result->background_color.ig =
- result->background_color.ib = BUFFER_INIT8 * 257;
- result->background_color.dr =
- result->background_color.dg =
- result->background_color.db = 0;
- }
- }
-
- else /* sRGB output */
- {
- if (background != NULL)
- {
- if (out_format & PNG_FORMAT_FLAG_COLOR)
- {
- result->background_color.ir = background->red;
- result->background_color.ig = background->green;
- result->background_color.ib = background->blue;
- /* TODO: sometimes libpng uses the power law conversion here, how
- * to handle this?
- */
- result->background_color.dr = sRGB_to_d[background->red];
- result->background_color.dg = sRGB_to_d[background->green];
- result->background_color.db = sRGB_to_d[background->blue];
- }
-
- else /* grayscale: libpng only looks at 'g' */
- {
- result->background_color.ir =
- result->background_color.ig =
- result->background_color.ib = background->green;
- /* TODO: sometimes libpng uses the power law conversion here, how
- * to handle this?
- */
- result->background_color.dr =
- result->background_color.dg =
- result->background_color.db = sRGB_to_d[background->green];
- }
- }
-
- else if ((out_format & PNG_FORMAT_FLAG_COLORMAP) == 0)
- {
- result->background_color.ir =
- result->background_color.ig =
- result->background_color.ib = BUFFER_INIT8;
- /* TODO: sometimes libpng uses the power law conversion here, how
- * to handle this?
- */
- result->background_color.dr =
- result->background_color.dg =
- result->background_color.db = sRGB_to_d[BUFFER_INIT8];
- }
-
- /* Else the output is colormapped and a background color must be
- * provided; if pngstest crashes then that is a bug in this program
- * (though libpng should png_error as well.)
- */
- else
- result->background = NULL;
- }
- }
-
- if (result->background == NULL)
- {
- result->background_color.ir =
- result->background_color.ig =
- result->background_color.ib = -1; /* not used */
- result->background_color.dr =
- result->background_color.dg =
- result->background_color.db = 1E30; /* not used */
- }
-
-
- /* Copy the error values into the Transform: */
- result->error[0] = result->error_ptr[0];
- result->error[1] = result->error_ptr[1];
- result->error[2] = result->error_ptr[2];
- result->error[3] = result->error_ptr[3];
-}
-
-
-/* Compare two pixels.
- *
- * OLD error values:
-static int error_to_linear = 811; * by experiment *
-static int error_to_linear_grayscale = 424; * by experiment *
-static int error_to_sRGB = 6; * by experiment *
-static int error_to_sRGB_grayscale = 17; * libpng error by calculation +
- 2 by experiment *
-static int error_in_compose = 2; * by experiment *
-static int error_in_premultiply = 1;
- *
- * The following is *just* the result of a round trip from 8-bit sRGB to linear
- * then back to 8-bit sRGB when it is done by libpng. There are two problems:
- *
- * 1) libpng currently uses a 2.2 power law with no linear segment, this results
- * in instability in the low values and even with 16-bit precision sRGB(1) ends
- * up mapping to sRGB(0) as a result of rounding in the 16-bit representation.
- * This gives an error of 1 in the handling of value 1 only.
- *
- * 2) libpng currently uses an intermediate 8-bit linear value in gamma
- * correction of 8-bit values. This results in many more errors, the worse of
- * which is mapping sRGB(14) to sRGB(0).
- *
- * The general 'error_via_linear' is more complex because of pre-multiplication,
- * this compounds the 8-bit errors according to the alpha value of the pixel.
- * As a result 256 values are pre-calculated for error_via_linear.
- */
-#if 0
-static int error_in_libpng_gamma;
-static int error_via_linear[256]; /* Indexed by 8-bit alpha */
-
-static void
-init_error_via_linear(void)
-{
- int alpha;
-
- error_via_linear[0] = 255; /* transparent pixel */
-
- for (alpha=1; alpha<=255; ++alpha)
- {
- /* 16-bit values less than 128.5 get rounded to 8-bit 0 and so the worst
- * case error arises with 16-bit 128.5, work out what sRGB
- * (non-associated) value generates 128.5; any value less than this is
- * going to map to 0, so the worst error is floor(value).
- *
- * Note that errors are considerably higher (more than a factor of 2)
- * because libpng uses a simple power law for sRGB data at present.
- *
- * Add .1 for arithmetic errors inside libpng.
- */
- double v = floor(255*pow(.5/*(128.5 * 255 / 65535)*/ / alpha, 1/2.2)+.1);
-
- error_via_linear[alpha] = (int)v;
- }
-
- /* This is actually 14.99, but, despite the closeness to 15, 14 seems to work
- * ok in this case.
- */
- error_in_libpng_gamma = 14;
-}
-#endif
-
-static void
-print_pixel(char string[64], const Pixel *pixel, png_uint_32 format)
-{
- switch (format & (PNG_FORMAT_FLAG_ALPHA|PNG_FORMAT_FLAG_COLOR))
- {
- case 0:
- sprintf(string, "%s(%d)", format_names[format], pixel->g);
- break;
-
- case PNG_FORMAT_FLAG_ALPHA:
- sprintf(string, "%s(%d,%d)", format_names[format], pixel->g,
- pixel->a);
- break;
-
- case PNG_FORMAT_FLAG_COLOR:
- sprintf(string, "%s(%d,%d,%d)", format_names[format],
- pixel->r, pixel->g, pixel->b);
- break;
-
- case PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_ALPHA:
- sprintf(string, "%s(%d,%d,%d,%d)", format_names[format],
- pixel->r, pixel->g, pixel->b, pixel->a);
- break;
-
- default:
- sprintf(string, "invalid-format");
- break;
- }
-}
-
-static int
-logpixel(const Transform *transform, png_uint_32 x, png_uint_32 y,
- const Pixel *in, const Pixel *calc, const Pixel *out, const char *reason)
-{
- png_uint_32 in_format = transform->in_image->image.format;
- png_uint_32 out_format = transform->out_image->image.format;
-
- png_uint_32 back_format = out_format & ~PNG_FORMAT_FLAG_ALPHA;
- const char *via_linear = "";
-
- char pixel_in[64], pixel_calc[64], pixel_out[64], pixel_loc[64];
- char background_info[100];
-
- print_pixel(pixel_in, in, in_format);
- print_pixel(pixel_calc, calc, out_format);
- print_pixel(pixel_out, out, out_format);
-
- if (transform->is_palette)
- sprintf(pixel_loc, "palette: %lu", (unsigned long)y);
- else
- sprintf(pixel_loc, "%lu,%lu", (unsigned long)x, (unsigned long)y);
-
- if (transform->from_linear != NULL)
- {
- via_linear = " (via linear)";
- /* And as a result the *read* format which did any background processing
- * was itself linear, so the background color information is also
- * linear.
- */
- back_format |= PNG_FORMAT_FLAG_LINEAR;
- }
-
- if (transform->background != NULL)
- {
- Pixel back;
- char pixel_back[64];
-
- back.r = transform->background->ir;
- back.g = transform->background->ig;
- back.b = transform->background->ib;
- back.a = -1; /* not used */
-
- print_pixel(pixel_back, &back, back_format);
- sprintf(background_info, " on background %s", pixel_back);
- }
-
- else
- background_info[0] = 0;
-
- if (transform->in_image->file_name != transform->out_image->file_name)
- {
- char error_buffer[512];
- sprintf(error_buffer,
- "(%s) %s error%s:\n %s%s ->\n %s\n not: %s.\n"
- "Use --preserve and examine: ", pixel_loc, reason, via_linear,
- pixel_in, background_info, pixel_out, pixel_calc);
- return logerror(transform->in_image, transform->in_image->file_name,
- error_buffer, transform->out_image->file_name);
- }
-
- else
- {
- char error_buffer[512];
- sprintf(error_buffer,
- "(%s) %s error%s:\n %s%s ->\n %s\n not: %s.\n"
- " The error happened when reading the original file with this format.",
- pixel_loc, reason, via_linear, pixel_in, background_info, pixel_out,
- pixel_calc);
- return logerror(transform->in_image, transform->in_image->file_name,
- error_buffer, "");
- }
-}
-
-static int
-cmppixel(Transform *transform, png_const_voidp in, png_const_voidp out,
- png_uint_32 x, png_uint_32 y/*or palette index*/)
-{
- int maxerr;
- png_const_charp errmsg;
- Pixel pixel_in, pixel_calc, pixel_out;
-
- transform->in_gp(&pixel_in, in);
-
- if (transform->from_linear == NULL)
- transform->transform(&pixel_calc, &pixel_in, transform->background);
-
- else
- {
- transform->transform(&pixel_out, &pixel_in, transform->background);
- transform->from_linear(&pixel_calc, &pixel_out, NULL);
- }
-
- transform->out_gp(&pixel_out, out);
-
- /* Eliminate the case where the input and output values match exactly. */
- if (pixel_calc.a == pixel_out.a && pixel_calc.r == pixel_out.r &&
- pixel_calc.g == pixel_out.g && pixel_calc.b == pixel_out.b)
- return 1;
-
- /* Eliminate the case where the output pixel is transparent and the output
- * is 8-bit - any component values are valid. Don't check the input alpha
- * here to also skip the 16-bit small alpha cases.
- */
- if (transform->output_8bit && pixel_calc.a == 0 && pixel_out.a == 0)
- return 1;
-
- /* Check for alpha errors first; an alpha error can damage the components too
- * so avoid spurious checks on components if one is found.
- */
- errmsg = NULL;
- {
- int err_a = abs(pixel_calc.a-pixel_out.a);
-
- if (err_a > transform->error[3])
- {
- /* If accumulating check the components too */
- if (transform->accumulate)
- transform->error[3] = (png_uint_16)err_a;
-
- else
- errmsg = "alpha";
- }
- }
-
- /* Now if *either* of the output alphas are 0 but alpha is within tolerance
- * eliminate the 8-bit component comparison.
- */
- if (errmsg == NULL && transform->output_8bit &&
- (pixel_calc.a == 0 || pixel_out.a == 0))
- return 1;
-
- if (errmsg == NULL) /* else just signal an alpha error */
- {
- int err_r = abs(pixel_calc.r - pixel_out.r);
- int err_g = abs(pixel_calc.g - pixel_out.g);
- int err_b = abs(pixel_calc.b - pixel_out.b);
- int limit;
-
- if ((err_r | err_g | err_b) == 0)
- return 1; /* exact match */
-
- /* Mismatch on a component, check the input alpha */
- if (pixel_in.a >= transform->in_opaque)
- {
- errmsg = "opaque component";
- limit = 2; /* opaque */
- }
-
- else if (pixel_in.a > 0)
- {
- errmsg = "alpha component";
- limit = 1; /* partially transparent */
- }
-
- else
- {
- errmsg = "transparent component (background)";
- limit = 0; /* transparent */
- }
-
- maxerr = err_r;
- if (maxerr < err_g) maxerr = err_g;
- if (maxerr < err_b) maxerr = err_b;
-
- if (maxerr <= transform->error[limit])
- return 1; /* within the error limits */
-
- /* Handle a component mis-match; log it, just return an error code, or
- * accumulate it.
- */
- if (transform->accumulate)
- {
- transform->error[limit] = (png_uint_16)maxerr;
- return 1; /* to cause the caller to keep going */
- }
- }
-
- /* Failure to match and not accumulating, so the error must be logged. */
- return logpixel(transform, x, y, &pixel_in, &pixel_calc, &pixel_out, errmsg);
-}
-
-static png_byte
-component_loc(png_byte loc[4], png_uint_32 format)
-{
- /* Given a format return the number of channels and the location of
- * each channel.
- *
- * The mask 'loc' contains the component offset of the channels in the
- * following order. Note that if 'format' is grayscale the entries 1-3 must
- * all contain the location of the gray channel.
- *
- * 0: alpha
- * 1: red or gray
- * 2: green or gray
- * 3: blue or gray
- */
- png_byte channels;
-
- if (format & PNG_FORMAT_FLAG_COLOR)
- {
- channels = 3;
-
- loc[2] = 1;
-
-# ifdef PNG_FORMAT_BGR_SUPPORTED
- if (format & PNG_FORMAT_FLAG_BGR)
- {
- loc[1] = 2;
- loc[3] = 0;
- }
-
- else
-# endif
- {
- loc[1] = 0;
- loc[3] = 2;
- }
- }
-
- else
- {
- channels = 1;
- loc[1] = loc[2] = loc[3] = 0;
- }
-
- if (format & PNG_FORMAT_FLAG_ALPHA)
- {
-# ifdef PNG_FORMAT_AFIRST_SUPPORTED
- if (format & PNG_FORMAT_FLAG_AFIRST)
- {
- loc[0] = 0;
- ++loc[1];
- ++loc[2];
- ++loc[3];
- }
-
- else
-# endif
- loc[0] = channels;
-
- ++channels;
- }
-
- else
- loc[0] = 4; /* not present */
-
- return channels;
-}
-
-/* Compare two images, the original 'a', which was written out then read back in
- * to * give image 'b'. The formats may have been changed.
- */
-static int
-compare_two_images(Image *a, Image *b, int via_linear,
- png_const_colorp background)
-{
- ptrdiff_t stridea = a->stride;
- ptrdiff_t strideb = b->stride;
- png_const_bytep rowa = a->buffer+16;
- png_const_bytep rowb = b->buffer+16;
- png_uint_32 width = a->image.width;
- png_uint_32 height = a->image.height;
- png_uint_32 formata = a->image.format;
- png_uint_32 formatb = b->image.format;
- unsigned int a_sample = PNG_IMAGE_SAMPLE_SIZE(formata);
- unsigned int b_sample = PNG_IMAGE_SAMPLE_SIZE(formatb);
- int alpha_added, alpha_removed;
- int bchannels;
- png_uint_32 y;
- Transform tr;
- int btoa[4]={0,0,0,0};
-
- /* This should never happen: */
- if (width != b->image.width || height != b->image.height)
- return logerror(a, a->file_name, ": width x height changed: ",
- b->file_name);
-
- /* Set up the background and the transform */
- transform_from_formats(&tr, a, b, background, via_linear);
-
- /* Find the first row and inter-row space. */
- if (!(formata & PNG_FORMAT_FLAG_COLORMAP) &&
- (formata & PNG_FORMAT_FLAG_LINEAR))
- stridea *= 2;
-
- if (!(formatb & PNG_FORMAT_FLAG_COLORMAP) &&
- (formatb & PNG_FORMAT_FLAG_LINEAR))
- strideb *= 2;
-
- if (stridea < 0) rowa += (height-1) * (-stridea);
- if (strideb < 0) rowb += (height-1) * (-strideb);
-
- /* First shortcut the two colormap case by comparing the image data; if it
- * matches then we expect the colormaps to match, although this is not
- * absolutely necessary for an image match. If the colormaps fail to match
- * then there is a problem in libpng.
- */
- if (formata & formatb & PNG_FORMAT_FLAG_COLORMAP)
- {
- /* Only check colormap entries that actually exist; */
- png_const_bytep ppa, ppb;
- int match;
- png_byte in_use[256], amax = 0, bmax = 0;
-
- memset(in_use, 0, sizeof in_use);
-
- ppa = rowa;
- ppb = rowb;
-
- /* Do this the slow way to accumulate the 'in_use' flags, don't break out
- * of the loop until the end; this validates the color-mapped data to
- * ensure all pixels are valid color-map indexes.
- */
- for (y=0, match=1; y<height && match; ++y, ppa += stridea, ppb += strideb)
- {
- png_uint_32 x;
-
- for (x=0; x<width; ++x)
- {
- png_byte bval = ppb[x];
- png_byte aval = ppa[x];
-
- if (bval > bmax)
- bmax = bval;
-
- if (bval != aval)
- match = 0;
-
- in_use[aval] = 1;
- if (aval > amax)
- amax = aval;
- }
- }
-
- /* If the buffers match then the colormaps must too. */
- if (match)
- {
- /* Do the color-maps match, entry by entry? Only check the 'in_use'
- * entries. An error here should be logged as a color-map error.
- */
- png_const_bytep a_cmap = (png_const_bytep)a->colormap;
- png_const_bytep b_cmap = (png_const_bytep)b->colormap;
- int result = 1; /* match by default */
-
- /* This is used in logpixel to get the error message correct. */
- tr.is_palette = 1;
-
- for (y=0; y<256; ++y, a_cmap += a_sample, b_cmap += b_sample)
- if (in_use[y])
- {
- /* The colormap entries should be valid, but because libpng doesn't
- * do any checking at present the original image may contain invalid
- * pixel values. These cause an error here (at present) unless
- * accumulating errors in which case the program just ignores them.
- */
- if (y >= a->image.colormap_entries)
- {
- if ((a->opts & ACCUMULATE) == 0)
- {
- char pindex[9];
- sprintf(pindex, "%lu[%lu]", (unsigned long)y,
- (unsigned long)a->image.colormap_entries);
- logerror(a, a->file_name, ": bad pixel index: ", pindex);
- }
- result = 0;
- }
-
- else if (y >= b->image.colormap_entries)
- {
- if ((b->opts & ACCUMULATE) == 0)
- {
- char pindex[9];
- sprintf(pindex, "%lu[%lu]", (unsigned long)y,
- (unsigned long)b->image.colormap_entries);
- logerror(b, b->file_name, ": bad pixel index: ", pindex);
- }
- result = 0;
- }
-
- /* All the mismatches are logged here; there can only be 256! */
- else if (!cmppixel(&tr, a_cmap, b_cmap, 0, y))
- result = 0;
- }
-
- /* If requested, copy the error values back from the Transform. */
- if (a->opts & ACCUMULATE)
- {
- tr.error_ptr[0] = tr.error[0];
- tr.error_ptr[1] = tr.error[1];
- tr.error_ptr[2] = tr.error[2];
- tr.error_ptr[3] = tr.error[3];
- result = 1; /* force a continue */
- }
-
- return result;
- }
-
- /* else the image buffers don't match pixel-wise so compare sample values
- * instead, but first validate that the pixel indexes are in range (but
- * only if not accumulating, when the error is ignored.)
- */
- else if ((a->opts & ACCUMULATE) == 0)
- {
-# ifdef __GNUC__
-# define BYTE_CHARS 20 /* 2^32: GCC sprintf warning */
-# else
-# define BYTE_CHARS 3 /* 2^8: real maximum value */
-# endif
- /* Check the original image first,
- * TODO: deal with input images with bad pixel values?
- */
- if (amax >= a->image.colormap_entries)
- {
- char pindex[3+2*BYTE_CHARS];
- sprintf(pindex, "%d[%u]", amax,
- (png_byte)/*SAFE*/a->image.colormap_entries);
- return logerror(a, a->file_name, ": bad pixel index: ", pindex);
- }
-
- else if (bmax >= b->image.colormap_entries)
- {
- char pindex[3+2*BYTE_CHARS];
- sprintf(pindex, "%d[%u]", bmax,
- (png_byte)/*SAFE*/b->image.colormap_entries);
- return logerror(b, b->file_name, ": bad pixel index: ", pindex);
- }
- }
- }
-
- /* We can directly compare pixel values without the need to use the read
- * or transform support (i.e. a memory compare) if:
- *
- * 1) The bit depth has not changed.
- * 2) RGB to grayscale has not been done (the reverse is ok; we just compare
- * the three RGB values to the original grayscale.)
- * 3) An alpha channel has not been removed from an 8-bit format, or the
- * 8-bit alpha value of the pixel was 255 (opaque).
- *
- * If an alpha channel has been *added* then it must have the relevant opaque
- * value (255 or 65535).
- *
- * The fist two the tests (in the order given above) (using the boolean
- * equivalence !a && !b == !(a || b))
- */
- if (!(((formata ^ formatb) & PNG_FORMAT_FLAG_LINEAR) |
- (formata & (formatb ^ PNG_FORMAT_FLAG_COLOR) & PNG_FORMAT_FLAG_COLOR)))
- {
- /* Was an alpha channel changed? */
- png_uint_32 alpha_changed = (formata ^ formatb) & PNG_FORMAT_FLAG_ALPHA;
-
- /* Was an alpha channel removed? (The third test.) If so the direct
- * comparison is only possible if the input alpha is opaque.
- */
- alpha_removed = (formata & alpha_changed) != 0;
-
- /* Was an alpha channel added? */
- alpha_added = (formatb & alpha_changed) != 0;
-
- /* The channels may have been moved between input and output, this finds
- * out how, recording the result in the btoa array, which says where in
- * 'a' to find each channel of 'b'. If alpha was added then btoa[alpha]
- * ends up as 4 (and is not used.)
- */
- {
- int i;
- png_byte aloc[4];
- png_byte bloc[4];
-
- /* The following are used only if the formats match, except that
- * 'bchannels' is a flag for matching formats. btoa[x] says, for each
- * channel in b, where to find the corresponding value in a, for the
- * bchannels. achannels may be different for a gray to rgb transform
- * (a will be 1 or 2, b will be 3 or 4 channels.)
- */
- (void)component_loc(aloc, formata);
- bchannels = component_loc(bloc, formatb);
-
- /* Hence the btoa array. */
- for (i=0; i<4; ++i) if (bloc[i] < 4)
- btoa[bloc[i]] = aloc[i]; /* may be '4' for alpha */
-
- if (alpha_added)
- alpha_added = bloc[0]; /* location of alpha channel in image b */
-
- else
- alpha_added = 4; /* Won't match an image b channel */
-
- if (alpha_removed)
- alpha_removed = aloc[0]; /* location of alpha channel in image a */
-
- else
- alpha_removed = 4;
- }
- }
-
- else
- {
- /* Direct compare is not possible, cancel out all the corresponding local
- * variables.
- */
- bchannels = 0;
- alpha_removed = alpha_added = 4;
- btoa[3] = btoa[2] = btoa[1] = btoa[0] = 4; /* 4 == not present */
- }
-
- for (y=0; y<height; ++y, rowa += stridea, rowb += strideb)
- {
- png_const_bytep ppa, ppb;
- png_uint_32 x;
-
- for (x=0, ppa=rowa, ppb=rowb; x<width; ++x)
- {
- png_const_bytep psa, psb;
-
- if (formata & PNG_FORMAT_FLAG_COLORMAP)
- psa = (png_const_bytep)a->colormap + a_sample * *ppa++;
- else
- psa = ppa, ppa += a_sample;
-
- if (formatb & PNG_FORMAT_FLAG_COLORMAP)
- psb = (png_const_bytep)b->colormap + b_sample * *ppb++;
- else
- psb = ppb, ppb += b_sample;
-
- /* Do the fast test if possible. */
- if (bchannels)
- {
- /* Check each 'b' channel against either the corresponding 'a'
- * channel or the opaque alpha value, as appropriate. If
- * alpha_removed value is set (not 4) then also do this only if the
- * 'a' alpha channel (alpha_removed) is opaque; only relevant for
- * the 8-bit case.
- */
- if (formatb & PNG_FORMAT_FLAG_LINEAR) /* 16-bit checks */
- {
- png_const_uint_16p pua = aligncastconst(png_const_uint_16p, psa);
- png_const_uint_16p pub = aligncastconst(png_const_uint_16p, psb);
-
- switch (bchannels)
- {
- case 4:
- if (pua[btoa[3]] != pub[3]) break;
- /* FALLTHROUGH */
- case 3:
- if (pua[btoa[2]] != pub[2]) break;
- /* FALLTHROUGH */
- case 2:
- if (pua[btoa[1]] != pub[1]) break;
- /* FALLTHROUGH */
- case 1:
- if (pua[btoa[0]] != pub[0]) break;
- if (alpha_added != 4 && pub[alpha_added] != 65535) break;
- continue; /* x loop */
- default:
- break; /* impossible */
- }
- }
-
- else if (alpha_removed == 4 || psa[alpha_removed] == 255)
- {
- switch (bchannels)
- {
- case 4:
- if (psa[btoa[3]] != psb[3]) break;
- /* FALLTHROUGH */
- case 3:
- if (psa[btoa[2]] != psb[2]) break;
- /* FALLTHROUGH */
- case 2:
- if (psa[btoa[1]] != psb[1]) break;
- /* FALLTHROUGH */
- case 1:
- if (psa[btoa[0]] != psb[0]) break;
- if (alpha_added != 4 && psb[alpha_added] != 255) break;
- continue; /* x loop */
- default:
- break; /* impossible */
- }
- }
- }
-
- /* If we get to here the fast match failed; do the slow match for this
- * pixel.
- */
- if (!cmppixel(&tr, psa, psb, x, y) && (a->opts & KEEP_GOING) == 0)
- return 0; /* error case */
- }
- }
-
- /* If requested, copy the error values back from the Transform. */
- if (a->opts & ACCUMULATE)
- {
- tr.error_ptr[0] = tr.error[0];
- tr.error_ptr[1] = tr.error[1];
- tr.error_ptr[2] = tr.error[2];
- tr.error_ptr[3] = tr.error[3];
- }
-
- return 1;
-}
-
-/* Read the file; how the read gets done depends on which of input_file and
- * input_memory have been set.
- */
-static int
-read_file(Image *image, png_uint_32 format, png_const_colorp background)
-{
- memset(&image->image, 0, sizeof image->image);
- image->image.version = PNG_IMAGE_VERSION;
-
- if (image->input_memory != NULL)
- {
- if (!png_image_begin_read_from_memory(&image->image, image->input_memory,
- image->input_memory_size))
- return logerror(image, "memory init: ", image->file_name, "");
- }
-
-# ifdef PNG_STDIO_SUPPORTED
- else if (image->input_file != NULL)
- {
- if (!png_image_begin_read_from_stdio(&image->image, image->input_file))
- return logerror(image, "stdio init: ", image->file_name, "");
- }
-
- else
- {
- if (!png_image_begin_read_from_file(&image->image, image->file_name))
- return logerror(image, "file init: ", image->file_name, "");
- }
-# else
- else
- {
- return logerror(image, "unsupported file/stdio init: ",
- image->file_name, "");
- }
-# endif
-
- /* This must be set after the begin_read call: */
- if (image->opts & sRGB_16BIT)
- image->image.flags |= PNG_IMAGE_FLAG_16BIT_sRGB;
-
- /* Have an initialized image with all the data we need plus, maybe, an
- * allocated file (myfile) or buffer (mybuffer) that need to be freed.
- */
- {
- int result;
- png_uint_32 image_format;
-
- /* Print both original and output formats. */
- image_format = image->image.format;
-
- if (image->opts & VERBOSE)
- {
- printf("%s %lu x %lu %s -> %s", image->file_name,
- (unsigned long)image->image.width,
- (unsigned long)image->image.height,
- format_names[image_format & FORMAT_MASK],
- (format & FORMAT_NO_CHANGE) != 0 || image->image.format == format
- ? "no change" : format_names[format & FORMAT_MASK]);
-
- if (background != NULL)
- printf(" background(%d,%d,%d)\n", background->red,
- background->green, background->blue);
- else
- printf("\n");
-
- fflush(stdout);
- }
-
- /* 'NO_CHANGE' combined with the color-map flag forces the base format
- * flags to be set on read to ensure that the original representation is
- * not lost in the pass through a colormap format.
- */
- if ((format & FORMAT_NO_CHANGE) != 0)
- {
- if ((format & PNG_FORMAT_FLAG_COLORMAP) != 0 &&
- (image_format & PNG_FORMAT_FLAG_COLORMAP) != 0)
- format = (image_format & ~BASE_FORMATS) | (format & BASE_FORMATS);
-
- else
- format = image_format;
- }
-
- image->image.format = format;
-
- image->stride = PNG_IMAGE_ROW_STRIDE(image->image) + image->stride_extra;
- allocbuffer(image);
-
- result = png_image_finish_read(&image->image, background,
- image->buffer+16, (png_int_32)image->stride, image->colormap);
-
- checkbuffer(image, image->file_name);
-
- if (result)
- return checkopaque(image);
-
- else
- return logerror(image, image->file_name, ": image read failed", "");
- }
-}
-
-/* Reads from a filename, which must be in image->file_name, but uses
- * image->opts to choose the method. The file is always read in its native
- * format (the one the simplified API suggests).
- */
-static int
-read_one_file(Image *image)
-{
- if (!(image->opts & USE_FILE) || (image->opts & USE_STDIO))
- {
- /* memory or stdio. */
- FILE *f = fopen(image->file_name, "rb");
-
- if (f != NULL)
- {
- if (image->opts & USE_FILE)
- image->input_file = f;
-
- else /* memory */
- {
- if (fseek(f, 0, SEEK_END) == 0)
- {
- long int cb = ftell(f);
-
- if (cb > 0)
- {
-#ifndef __COVERITY__
- if ((unsigned long int)cb <= (size_t)~(size_t)0)
-#endif
- {
- png_bytep b = voidcast(png_bytep, malloc((size_t)cb));
-
- if (b != NULL)
- {
- rewind(f);
-
- if (fread(b, (size_t)cb, 1, f) == 1)
- {
- fclose(f);
- image->input_memory_size = cb;
- image->input_memory = b;
- }
-
- else
- {
- free(b);
- return logclose(image, f, image->file_name,
- ": read failed: ");
- }
- }
-
- else
- return logclose(image, f, image->file_name,
- ": out of memory: ");
- }
-
- else
- return logclose(image, f, image->file_name,
- ": file too big for this architecture: ");
- /* cb is the length of the file as a (long) and
- * this is greater than the maximum amount of
- * memory that can be requested from malloc.
- */
- }
-
- else if (cb == 0)
- return logclose(image, f, image->file_name,
- ": zero length: ");
-
- else
- return logclose(image, f, image->file_name,
- ": tell failed: ");
- }
-
- else
- return logclose(image, f, image->file_name, ": seek failed: ");
- }
- }
-
- else
- return logerror(image, image->file_name, ": open failed: ",
- strerror(errno));
- }
-
- return read_file(image, FORMAT_NO_CHANGE, NULL);
-}
-
-#ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED
-static int
-write_one_file(Image *output, Image *image, int convert_to_8bit)
-{
- if (image->opts & FAST_WRITE)
- image->image.flags |= PNG_IMAGE_FLAG_FAST;
-
- if (image->opts & USE_STDIO)
- {
-#ifdef PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED
-#ifndef __COVERITY__
- FILE *f = tmpfile();
-#else
- /* Experimental. Coverity says tmpfile() is insecure because it
- * generates predictable names.
- *
- * It is possible to satisfy Coverity by using mkstemp(); however,
- * any platform supporting mkstemp() undoubtedly has a secure tmpfile()
- * implementation as well, and doesn't need the fix. Note that
- * the fix won't work on platforms that don't support mkstemp().
- *
- * https://www.securecoding.cert.org/confluence/display/c/
- * FIO21-C.+Do+not+create+temporary+files+in+shared+directories
- * says that most historic implementations of tmpfile() provide
- * only a limited number of possible temporary file names
- * (usually 26) before file names are recycled. That article also
- * provides a secure solution that unfortunately depends upon mkstemp().
- */
- char tmpfile[] = "pngstest-XXXXXX";
- int filedes;
- FILE *f;
- umask(0177);
- filedes = mkstemp(tmpfile);
- if (filedes < 0)
- f = NULL;
- else
- {
- f = fdopen(filedes,"w+");
- /* Hide the filename immediately and ensure that the file does
- * not exist after the program ends
- */
- (void) unlink(tmpfile);
- }
-#endif
-
- if (f != NULL)
- {
- if (png_image_write_to_stdio(&image->image, f, convert_to_8bit,
- image->buffer+16, (png_int_32)image->stride, image->colormap))
- {
- if (fflush(f) == 0)
- {
- rewind(f);
- initimage(output, image->opts, "tmpfile", image->stride_extra);
- output->input_file = f;
- if (!checkopaque(image))
- return 0;
- }
-
- else
- return logclose(image, f, "tmpfile", ": flush: ");
- }
-
- else
- {
- fclose(f);
- return logerror(image, "tmpfile", ": write failed", "");
- }
- }
-
- else
- return logerror(image, "tmpfile", ": open: ", strerror(errno));
-#else /* SIMPLIFIED_WRITE_STDIO */
- return logerror(image, "tmpfile", ": open: unsupported", "");
-#endif /* SIMPLIFIED_WRITE_STDIO */
- }
-
- else if (image->opts & USE_FILE)
- {
-#ifdef PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED
- static int counter = 0;
- char name[32];
-
- sprintf(name, "%s%d.png", tmpf, ++counter);
-
- if (png_image_write_to_file(&image->image, name, convert_to_8bit,
- image->buffer+16, (png_int_32)image->stride, image->colormap))
- {
- initimage(output, image->opts, output->tmpfile_name,
- image->stride_extra);
- /* Afterwards, or freeimage will delete it! */
- strcpy(output->tmpfile_name, name);
-
- if (!checkopaque(image))
- return 0;
- }
-
- else
- return logerror(image, name, ": write failed", "");
-#else /* SIMPLIFIED_WRITE_STDIO */
- return logerror(image, "stdio", ": open: unsupported", "");
-#endif /* SIMPLIFIED_WRITE_STDIO */
- }
-
- else /* use memory */
- {
- png_alloc_size_t size;
-
- if (png_image_write_get_memory_size(image->image, size, convert_to_8bit,
- image->buffer+16, (png_int_32)image->stride, image->colormap))
- {
- /* This is non-fatal but ignoring it was causing serious problems in
- * the macro to be ignored:
- */
- if (size > PNG_IMAGE_PNG_SIZE_MAX(image->image))
- return logerror(image, "memory", ": PNG_IMAGE_SIZE_MAX wrong", "");
-
- initimage(output, image->opts, "memory", image->stride_extra);
- output->input_memory = malloc(size);
-
- if (output->input_memory != NULL)
- {
- output->input_memory_size = size;
-
- if (png_image_write_to_memory(&image->image, output->input_memory,
- &output->input_memory_size, convert_to_8bit, image->buffer+16,
- (png_int_32)image->stride, image->colormap))
- {
- /* This is also non-fatal but it safes safer to error out anyway:
- */
- if (size != output->input_memory_size)
- return logerror(image, "memory", ": memory size wrong", "");
- }
-
- else
- return logerror(image, "memory", ": write failed", "");
- }
-
- else
- return logerror(image, "memory", ": out of memory", "");
- }
-
- else
- return logerror(image, "memory", ": get size:", "");
- }
-
- /* 'output' has an initialized temporary image, read this back in and compare
- * this against the original: there should be no change since the original
- * format was written unmodified unless 'convert_to_8bit' was specified.
- * However, if the original image was color-mapped, a simple read will zap
- * the linear, color and maybe alpha flags, this will cause spurious failures
- * under some circumstances.
- */
- if (read_file(output, image->image.format | FORMAT_NO_CHANGE, NULL))
- {
- png_uint_32 original_format = image->image.format;
-
- if (convert_to_8bit)
- original_format &= ~PNG_FORMAT_FLAG_LINEAR;
-
- if ((output->image.format & BASE_FORMATS) !=
- (original_format & BASE_FORMATS))
- return logerror(image, image->file_name, ": format changed on read: ",
- output->file_name);
-
- return compare_two_images(image, output, 0/*via linear*/, NULL);
- }
-
- else
- return logerror(output, output->tmpfile_name,
- ": read of new file failed", "");
-}
-#endif
-
-static int
-testimage(Image *image, png_uint_32 opts, format_list *pf)
-{
- int result;
- Image copy;
-
- /* Copy the original data, stealing it from 'image' */
- checkopaque(image);
- copy = *image;
-
- copy.opts = opts;
- copy.buffer = NULL;
- copy.bufsize = 0;
- copy.allocsize = 0;
-
- image->input_file = NULL;
- image->input_memory = NULL;
- image->input_memory_size = 0;
- image->tmpfile_name[0] = 0;
-
- {
- png_uint_32 counter;
- Image output;
-
- newimage(&output);
-
- result = 1;
-
- /* Use the low bit of 'counter' to indicate whether or not to do alpha
- * removal with a background color or by composting onto the image; this
- * step gets skipped if it isn't relevant
- */
- for (counter=0; counter<2*FORMAT_COUNT; ++counter)
- if (format_isset(pf, counter >> 1))
- {
- png_uint_32 format = counter >> 1;
-
- png_color background_color;
- png_colorp background = NULL;
-
- /* If there is a format change that removes the alpha channel then
- * the background is relevant. If the output is 8-bit color-mapped
- * then a background color *must* be provided, otherwise there are
- * two tests to do - one with a color, the other with NULL. The
- * NULL test happens second.
- */
- if ((counter & 1) == 0)
- {
- if ((format & PNG_FORMAT_FLAG_ALPHA) == 0 &&
- (image->image.format & PNG_FORMAT_FLAG_ALPHA) != 0)
- {
- /* Alpha/transparency will be removed, the background is
- * relevant: make it a color the first time
- */
- random_color(&background_color);
- background = &background_color;
-
- /* BUT if the output is to a color-mapped 8-bit format then
- * the background must always be a color, so increment 'counter'
- * to skip the NULL test.
- */
- if ((format & PNG_FORMAT_FLAG_COLORMAP) != 0 &&
- (format & PNG_FORMAT_FLAG_LINEAR) == 0)
- ++counter;
- }
-
- /* Otherwise an alpha channel is not being eliminated, just leave
- * background NULL and skip the (counter & 1) NULL test.
- */
- else
- ++counter;
- }
- /* else just use NULL for background */
-
- resetimage(©);
- copy.opts = opts; /* in case read_file needs to change it */
-
- result = read_file(©, format, background);
- if (!result)
- break;
-
- /* Make sure the file just read matches the original file. */
- result = compare_two_images(image, ©, 0/*via linear*/, background);
- if (!result)
- break;
-
-# ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED
- /* Write the *copy* just made to a new file to make sure the write
- * side works ok. Check the conversion to sRGB if the copy is
- * linear.
- */
- output.opts = opts;
- result = write_one_file(&output, ©, 0/*convert to 8bit*/);
- if (!result)
- break;
-
- /* Validate against the original too; the background is needed here
- * as well so that compare_two_images knows what color was used.
- */
- result = compare_two_images(image, &output, 0, background);
- if (!result)
- break;
-
- if ((format & PNG_FORMAT_FLAG_LINEAR) != 0 &&
- (format & PNG_FORMAT_FLAG_COLORMAP) == 0)
- {
- /* 'output' is linear, convert to the corresponding sRGB format.
- */
- output.opts = opts;
- result = write_one_file(&output, ©, 1/*convert to 8bit*/);
- if (!result)
- break;
-
- /* This may involve a conversion via linear; in the ideal world
- * this would round-trip correctly, but libpng 1.5.7 is not the
- * ideal world so allow a drift (error_via_linear).
- *
- * 'image' has an alpha channel but 'output' does not then there
- * will a strip-alpha-channel operation (because 'output' is
- * linear), handle this by composing on black when doing the
- * comparison.
- */
- result = compare_two_images(image, &output, 1/*via_linear*/,
- background);
- if (!result)
- break;
- }
-# endif /* PNG_SIMPLIFIED_WRITE_SUPPORTED */
- }
-
- freeimage(&output);
- }
-
- freeimage(©);
-
- return result;
-}
-
-static int
-test_one_file(const char *file_name, format_list *formats, png_uint_32 opts,
- int stride_extra, int log_pass)
-{
- int result;
- Image image;
-
- if (!(opts & NO_RESEED))
- reseed(); /* ensure that the random numbers don't depend on file order */
- newimage(&image);
- initimage(&image, opts, file_name, stride_extra);
- result = read_one_file(&image);
- if (result)
- result = testimage(&image, opts, formats);
- freeimage(&image);
-
- /* Ensure that stderr is flushed into any log file */
- fflush(stderr);
-
- if (log_pass)
- {
- if (result)
- printf("PASS:");
-
- else
- printf("FAIL:");
-
-# ifndef PNG_SIMPLIFIED_WRITE_SUPPORTED
- printf(" (no write)");
-# endif
-
- print_opts(opts);
- printf(" %s\n", file_name);
- /* stdout may not be line-buffered if it is piped to a file, so: */
- fflush(stdout);
- }
-
- else if (!result)
- exit(1);
-
- return result;
-}
-
-int
-main(int argc, char **argv)
-{
- png_uint_32 opts = FAST_WRITE | STRICT;
- format_list formats;
- const char *touch = NULL;
- int log_pass = 0;
- int redundant = 0;
- int stride_extra = 0;
- int retval = 0;
- int c;
-
-#if PNG_LIBPNG_VER >= 10700
- /* This error should not exist in 1.7 or later: */
- opts |= GBG_ERROR;
-#endif
-
- init_sRGB_to_d();
-#if 0
- init_error_via_linear();
-#endif
- format_init(&formats);
- reseed(); /* initialize random number seeds */
-
- for (c=1; c<argc; ++c)
- {
- const char *arg = argv[c];
-
- if (strcmp(arg, "--log") == 0)
- log_pass = 1;
- else if (strcmp(arg, "--fresh") == 0)
- {
- memset(gpc_error, 0, sizeof gpc_error);
- memset(gpc_error_via_linear, 0, sizeof gpc_error_via_linear);
- }
- else if (strcmp(arg, "--file") == 0)
-# ifdef PNG_STDIO_SUPPORTED
- opts |= USE_FILE;
-# else
- return SKIP; /* skipped: no support */
-# endif
- else if (strcmp(arg, "--memory") == 0)
- opts &= ~USE_FILE;
- else if (strcmp(arg, "--stdio") == 0)
-# ifdef PNG_STDIO_SUPPORTED
- opts |= USE_STDIO;
-# else
- return SKIP; /* skipped: no support */
-# endif
- else if (strcmp(arg, "--name") == 0)
- opts &= ~USE_STDIO;
- else if (strcmp(arg, "--verbose") == 0)
- opts |= VERBOSE;
- else if (strcmp(arg, "--quiet") == 0)
- opts &= ~VERBOSE;
- else if (strcmp(arg, "--preserve") == 0)
- opts |= KEEP_TMPFILES;
- else if (strcmp(arg, "--nopreserve") == 0)
- opts &= ~KEEP_TMPFILES;
- else if (strcmp(arg, "--keep-going") == 0)
- opts |= KEEP_GOING;
- else if (strcmp(arg, "--fast") == 0)
- opts |= FAST_WRITE;
- else if (strcmp(arg, "--slow") == 0)
- opts &= ~FAST_WRITE;
- else if (strcmp(arg, "--accumulate") == 0)
- opts |= ACCUMULATE;
- else if (strcmp(arg, "--redundant") == 0)
- redundant = 1;
- else if (strcmp(arg, "--stop") == 0)
- opts &= ~KEEP_GOING;
- else if (strcmp(arg, "--strict") == 0)
- opts |= STRICT;
- else if (strcmp(arg, "--nostrict") == 0)
- opts &= ~STRICT;
- else if (strcmp(arg, "--sRGB-16bit") == 0)
- opts |= sRGB_16BIT;
- else if (strcmp(arg, "--linear-16bit") == 0)
- opts &= ~sRGB_16BIT;
- else if (strcmp(arg, "--noreseed") == 0)
- opts |= NO_RESEED;
- else if (strcmp(arg, "--fault-gbg-warning") == 0)
- opts |= GBG_ERROR;
- else if (strcmp(arg, "--tmpfile") == 0)
- {
- if (c+1 < argc)
- {
- if (strlen(argv[++c]) >= sizeof tmpf)
- {
- fflush(stdout);
- fprintf(stderr, "%s: %s is too long for a temp file prefix\n",
- argv[0], argv[c]);
- exit(99);
- }
-
- /* Safe: checked above */
- strncpy(tmpf, argv[c], sizeof (tmpf)-1);
- }
-
- else
- {
- fflush(stdout);
- fprintf(stderr, "%s: %s requires a temporary file prefix\n",
- argv[0], arg);
- exit(99);
- }
- }
- else if (strcmp(arg, "--touch") == 0)
- {
- if (c+1 < argc)
- touch = argv[++c];
-
- else
- {
- fflush(stdout);
- fprintf(stderr, "%s: %s requires a file name argument\n",
- argv[0], arg);
- exit(99);
- }
- }
- else if (arg[0] == '+')
- {
- png_uint_32 format = formatof(arg+1);
-
- if (format > FORMAT_COUNT)
- exit(99);
-
- format_set(&formats, format);
- }
- else if (arg[0] == '-' && arg[1] != 0 && (arg[1] != '0' || arg[2] != 0))
- {
- fflush(stdout);
- fprintf(stderr, "%s: unknown option: %s\n", argv[0], arg);
- exit(99);
- }
- else
- {
- if (format_is_initial(&formats))
- format_default(&formats, redundant);
-
- if (arg[0] == '-')
- {
- int term = (arg[1] == '0' ? 0 : '\n');
- unsigned int ich = 0;
-
- /* Loop reading files, use a static buffer to simplify this and just
- * stop if the name gets to long.
- */
- static char buffer[4096];
-
- do
- {
- int ch = getchar();
-
- /* Don't allow '\0' in file names, and terminate with '\n' or,
- * for -0, just '\0' (use -print0 to find to make this work!)
- */
- if (ch == EOF || ch == term || ch == 0)
- {
- buffer[ich] = 0;
-
- if (ich > 0 && !test_one_file(buffer, &formats, opts,
- stride_extra, log_pass))
- retval = 1;
-
- if (ch == EOF)
- break;
-
- ich = 0;
- --ich; /* so that the increment below sets it to 0 again */
- }
-
- else
- buffer[ich] = (char)ch;
- } while (++ich < sizeof buffer);
-
- if (ich)
- {
- buffer[32] = 0;
- buffer[4095] = 0;
- fprintf(stderr, "%s...%s: file name too long\n", buffer,
- buffer+(4096-32));
- exit(99);
- }
- }
-
- else if (!test_one_file(arg, &formats, opts, stride_extra, log_pass))
- retval = 1;
- }
- }
-
- if (opts & ACCUMULATE)
- {
- unsigned int in;
-
- printf("/* contrib/libtests/pngstest-errors.h\n");
- printf(" *\n");
- printf(" * BUILT USING:" PNG_HEADER_VERSION_STRING);
- printf(" *\n");
- printf(" * This code is released under the libpng license.\n");
- printf(" * For conditions of distribution and use, see the disclaimer\n");
- printf(" * and license in png.h\n");
- printf(" *\n");
- printf(" * THIS IS A MACHINE GENERATED FILE: do not edit it directly!\n");
- printf(" * Instead run:\n");
- printf(" *\n");
- printf(" * pngstest --accumulate\n");
- printf(" *\n");
- printf(" * on as many PNG files as possible; at least PNGSuite and\n");
- printf(" * contrib/libtests/testpngs.\n");
- printf(" */\n");
-
- printf("static png_uint_16 gpc_error[16/*in*/][16/*out*/][4/*a*/] =\n");
- printf("{\n");
- for (in=0; in<16; ++in)
- {
- unsigned int out;
- printf(" { /* input: %s */\n ", format_names[in]);
- for (out=0; out<16; ++out)
- {
- unsigned int alpha;
- printf(" {");
- for (alpha=0; alpha<4; ++alpha)
- {
- printf(" %d", gpc_error[in][out][alpha]);
- if (alpha < 3) putchar(',');
- }
- printf(" }");
- if (out < 15)
- {
- putchar(',');
- if (out % 4 == 3) printf("\n ");
- }
- }
- printf("\n }");
-
- if (in < 15)
- putchar(',');
- else
- putchar('\n');
- }
- printf("};\n");
-
- printf("static png_uint_16 gpc_error_via_linear[16][4/*out*/][4] =\n");
- printf("{\n");
- for (in=0; in<16; ++in)
- {
- unsigned int out;
- printf(" { /* input: %s */\n ", format_names[in]);
- for (out=0; out<4; ++out)
- {
- unsigned int alpha;
- printf(" {");
- for (alpha=0; alpha<4; ++alpha)
- {
- printf(" %d", gpc_error_via_linear[in][out][alpha]);
- if (alpha < 3) putchar(',');
- }
- printf(" }");
- if (out < 3)
- putchar(',');
- }
- printf("\n }");
-
- if (in < 15)
- putchar(',');
- else
- putchar('\n');
- }
- printf("};\n");
-
- printf("static png_uint_16 gpc_error_to_colormap[8/*i*/][8/*o*/][4] =\n");
- printf("{\n");
- for (in=0; in<8; ++in)
- {
- unsigned int out;
- printf(" { /* input: %s */\n ", format_names[in]);
- for (out=0; out<8; ++out)
- {
- unsigned int alpha;
- printf(" {");
- for (alpha=0; alpha<4; ++alpha)
- {
- printf(" %d", gpc_error_to_colormap[in][out][alpha]);
- if (alpha < 3) putchar(',');
- }
- printf(" }");
- if (out < 7)
- {
- putchar(',');
- if (out % 4 == 3) printf("\n ");
- }
- }
- printf("\n }");
-
- if (in < 7)
- putchar(',');
- else
- putchar('\n');
- }
- printf("};\n");
- printf("/* END MACHINE GENERATED */\n");
- }
-
- if (retval == 0 && touch != NULL)
- {
- FILE *fsuccess = fopen(touch, "wt");
-
- if (fsuccess != NULL)
- {
- int error = 0;
- fprintf(fsuccess, "PNG simple API tests succeeded\n");
- fflush(fsuccess);
- error = ferror(fsuccess);
-
- if (fclose(fsuccess) || error)
- {
- fflush(stdout);
- fprintf(stderr, "%s: write failed\n", touch);
- exit(99);
- }
- }
-
- else
- {
- fflush(stdout);
- fprintf(stderr, "%s: open failed\n", touch);
- exit(99);
- }
- }
-
- return retval;
-}
-
-#else /* !PNG_SIMPLIFIED_READ_SUPPORTED */
-int main(void)
-{
- fprintf(stderr, "pngstest: no read support in libpng, test skipped\n");
- /* So the test is skipped: */
- return SKIP;
-}
-#endif /* PNG_SIMPLIFIED_READ_SUPPORTED */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngstest.o b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngstest.o
deleted file mode 100644
index d4287bb..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngstest.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngunknown.c b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngunknown.c
deleted file mode 100644
index 05bdd83..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngunknown.c
+++ /dev/null
@@ -1,1294 +0,0 @@
-
-/* pngunknown.c - test the read side unknown chunk handling
- *
- * Last changed in libpng 1.6.32 [August 24, 2017]
- * Copyright (c) 2015,2017 Glenn Randers-Pehrson
- * Written by John Cunningham Bowler
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * NOTES:
- * This is a C program that is intended to be linked against libpng. It
- * allows the libpng unknown handling code to be tested by interpreting
- * arguments to save or discard combinations of chunks. The program is
- * currently just a minimal validation for the built-in libpng facilities.
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <setjmp.h>
-
-/* Define the following to use this test against your installed libpng, rather
- * than the one being built here:
- */
-#ifdef PNG_FREESTANDING_TESTS
-# include <png.h>
-#else
-# include "../../png.h"
-#endif
-
-/* 1.6.1 added support for the configure test harness, which uses 77 to indicate
- * a skipped test, in earlier versions we need to succeed on a skipped test, so:
- */
-#if PNG_LIBPNG_VER >= 10601 && defined(HAVE_CONFIG_H)
-# define SKIP 77
-#else
-# define SKIP 0
-#endif
-
-
-/* Since this program tests the ability to change the unknown chunk handling
- * these must be defined:
- */
-#if defined(PNG_SET_UNKNOWN_CHUNKS_SUPPORTED) &&\
- defined(PNG_STDIO_SUPPORTED) &&\
- defined(PNG_READ_SUPPORTED)
-
-/* One of these must be defined to allow us to find out what happened. It is
- * still useful to set unknown chunk handling without either of these in order
- * to cause *known* chunks to be discarded. This can be a significant
- * efficiency gain, but it can't really be tested here.
- */
-#if defined(PNG_READ_USER_CHUNKS_SUPPORTED) ||\
- defined(PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED)
-
-#if PNG_LIBPNG_VER < 10500
-/* This deliberately lacks the const. */
-typedef png_byte *png_const_bytep;
-
-/* This is copied from 1.5.1 png.h: */
-#define PNG_INTERLACE_ADAM7_PASSES 7
-#define PNG_PASS_START_ROW(pass) (((1U&~(pass))<<(3-((pass)>>1)))&7)
-#define PNG_PASS_START_COL(pass) (((1U& (pass))<<(3-(((pass)+1)>>1)))&7)
-#define PNG_PASS_ROW_SHIFT(pass) ((pass)>2?(8-(pass))>>1:3)
-#define PNG_PASS_COL_SHIFT(pass) ((pass)>1?(7-(pass))>>1:3)
-#define PNG_PASS_ROWS(height, pass) (((height)+(((1<<PNG_PASS_ROW_SHIFT(pass))\
- -1)-PNG_PASS_START_ROW(pass)))>>PNG_PASS_ROW_SHIFT(pass))
-#define PNG_PASS_COLS(width, pass) (((width)+(((1<<PNG_PASS_COL_SHIFT(pass))\
- -1)-PNG_PASS_START_COL(pass)))>>PNG_PASS_COL_SHIFT(pass))
-#define PNG_ROW_FROM_PASS_ROW(yIn, pass) \
- (((yIn)<<PNG_PASS_ROW_SHIFT(pass))+PNG_PASS_START_ROW(pass))
-#define PNG_COL_FROM_PASS_COL(xIn, pass) \
- (((xIn)<<PNG_PASS_COL_SHIFT(pass))+PNG_PASS_START_COL(pass))
-#define PNG_PASS_MASK(pass,off) ( \
- ((0x110145AFU>>(((7-(off))-(pass))<<2)) & 0xFU) | \
- ((0x01145AF0U>>(((7-(off))-(pass))<<2)) & 0xF0U))
-#define PNG_ROW_IN_INTERLACE_PASS(y, pass) \
- ((PNG_PASS_MASK(pass,0) >> ((y)&7)) & 1)
-#define PNG_COL_IN_INTERLACE_PASS(x, pass) \
- ((PNG_PASS_MASK(pass,1) >> ((x)&7)) & 1)
-
-/* These are needed too for the default build: */
-#define PNG_WRITE_16BIT_SUPPORTED
-#define PNG_READ_16BIT_SUPPORTED
-
-/* This comes from pnglibconf.h after 1.5: */
-#define PNG_FP_1 100000
-#define PNG_GAMMA_THRESHOLD_FIXED\
- ((png_fixed_point)(PNG_GAMMA_THRESHOLD * PNG_FP_1))
-#endif
-
-#if PNG_LIBPNG_VER < 10600
- /* 1.6.0 constifies many APIs. The following exists to allow pngvalid to be
- * compiled against earlier versions.
- */
-# define png_const_structp png_structp
-#endif
-
-#if PNG_LIBPNG_VER < 10700
- /* Copied from libpng 1.7.0 png.h */
-#define PNG_u2(b1, b2) (((unsigned int)(b1) << 8) + (b2))
-
-#define PNG_U16(b1, b2) ((png_uint_16)PNG_u2(b1, b2))
-#define PNG_U32(b1, b2, b3, b4)\
- (((png_uint_32)PNG_u2(b1, b2) << 16) + PNG_u2(b3, b4))
-
-/* Constants for known chunk types.
- */
-#define png_IDAT PNG_U32( 73, 68, 65, 84)
-#define png_IEND PNG_U32( 73, 69, 78, 68)
-#define png_IHDR PNG_U32( 73, 72, 68, 82)
-#define png_PLTE PNG_U32( 80, 76, 84, 69)
-#define png_bKGD PNG_U32( 98, 75, 71, 68)
-#define png_cHRM PNG_U32( 99, 72, 82, 77)
-#define png_eXIf PNG_U32(101, 88, 73, 102) /* registered July 2017 */
-#define png_fRAc PNG_U32(102, 82, 65, 99) /* registered, not defined */
-#define png_gAMA PNG_U32(103, 65, 77, 65)
-#define png_gIFg PNG_U32(103, 73, 70, 103)
-#define png_gIFt PNG_U32(103, 73, 70, 116) /* deprecated */
-#define png_gIFx PNG_U32(103, 73, 70, 120)
-#define png_hIST PNG_U32(104, 73, 83, 84)
-#define png_iCCP PNG_U32(105, 67, 67, 80)
-#define png_iTXt PNG_U32(105, 84, 88, 116)
-#define png_oFFs PNG_U32(111, 70, 70, 115)
-#define png_pCAL PNG_U32(112, 67, 65, 76)
-#define png_pHYs PNG_U32(112, 72, 89, 115)
-#define png_sBIT PNG_U32(115, 66, 73, 84)
-#define png_sCAL PNG_U32(115, 67, 65, 76)
-#define png_sPLT PNG_U32(115, 80, 76, 84)
-#define png_sRGB PNG_U32(115, 82, 71, 66)
-#define png_sTER PNG_U32(115, 84, 69, 82)
-#define png_tEXt PNG_U32(116, 69, 88, 116)
-#define png_tIME PNG_U32(116, 73, 77, 69)
-#define png_tRNS PNG_U32(116, 82, 78, 83)
-#define png_zTXt PNG_U32(122, 84, 88, 116)
-
-/* Test on flag values as defined in the spec (section 5.4): */
-#define PNG_CHUNK_ANCILLARY(c) (1 & ((c) >> 29))
-#define PNG_CHUNK_CRITICAL(c) (!PNG_CHUNK_ANCILLARY(c))
-#define PNG_CHUNK_PRIVATE(c) (1 & ((c) >> 21))
-#define PNG_CHUNK_RESERVED(c) (1 & ((c) >> 13))
-#define PNG_CHUNK_SAFE_TO_COPY(c) (1 & ((c) >> 5))
-
-#endif /* PNG_LIBPNG_VER < 10700 */
-
-#ifdef __cplusplus
-# define this not_the_cpp_this
-# define new not_the_cpp_new
-# define voidcast(type, value) static_cast<type>(value)
-#else
-# define voidcast(type, value) (value)
-#endif /* __cplusplus */
-
-/* Unused formal parameter errors are removed using the following macro which is
- * expected to have no bad effects on performance.
- */
-#ifndef UNUSED
-# if defined(__GNUC__) || defined(_MSC_VER)
-# define UNUSED(param) (void)param;
-# else
-# define UNUSED(param)
-# endif
-#endif
-
-/* Types of chunks not known to libpng */
-#define png_vpAg PNG_U32(118, 112, 65, 103)
-
-/* Chunk information */
-#define PNG_INFO_tEXt 0x10000000U
-#define PNG_INFO_iTXt 0x20000000U
-#define PNG_INFO_zTXt 0x40000000U
-
-#define PNG_INFO_sTER 0x01000000U
-#define PNG_INFO_vpAg 0x02000000U
-
-#define ABSENT 0
-#define START 1
-#define END 2
-
-static struct
-{
- char name[5];
- png_uint_32 flag;
- png_uint_32 tag;
- int unknown; /* Chunk not known to libpng */
- int all; /* Chunk set by the '-1' option */
- int position; /* position in pngtest.png */
- int keep; /* unknown handling setting */
-} chunk_info[] = {
- /* Critical chunks */
- { "IDAT", PNG_INFO_IDAT, png_IDAT, 0, 0, START, 0 }, /* must be [0] */
- { "PLTE", PNG_INFO_PLTE, png_PLTE, 0, 0, ABSENT, 0 },
-
- /* Non-critical chunks that libpng handles */
- /* This is a mess but it seems to be the only way to do it - there is no way
- * to check for a definition outside a #if.
- */
- { "bKGD", PNG_INFO_bKGD, png_bKGD,
-# ifdef PNG_READ_bKGD_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, START, 0 },
- { "cHRM", PNG_INFO_cHRM, png_cHRM,
-# ifdef PNG_READ_cHRM_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, START, 0 },
- { "eXIf", PNG_INFO_eXIf, png_eXIf,
-# ifdef PNG_READ_eXIf_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, END, 0 },
- { "gAMA", PNG_INFO_gAMA, png_gAMA,
-# ifdef PNG_READ_gAMA_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, START, 0 },
- { "hIST", PNG_INFO_hIST, png_hIST,
-# ifdef PNG_READ_hIST_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, ABSENT, 0 },
- { "iCCP", PNG_INFO_iCCP, png_iCCP,
-# ifdef PNG_READ_iCCP_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, ABSENT, 0 },
- { "iTXt", PNG_INFO_iTXt, png_iTXt,
-# ifdef PNG_READ_iTXt_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, ABSENT, 0 },
- { "oFFs", PNG_INFO_oFFs, png_oFFs,
-# ifdef PNG_READ_oFFs_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, START, 0 },
- { "pCAL", PNG_INFO_pCAL, png_pCAL,
-# ifdef PNG_READ_pCAL_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, START, 0 },
- { "pHYs", PNG_INFO_pHYs, png_pHYs,
-# ifdef PNG_READ_pHYs_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, START, 0 },
- { "sBIT", PNG_INFO_sBIT, png_sBIT,
-# ifdef PNG_READ_sBIT_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, START, 0 },
- { "sCAL", PNG_INFO_sCAL, png_sCAL,
-# ifdef PNG_READ_sCAL_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, START, 0 },
- { "sPLT", PNG_INFO_sPLT, png_sPLT,
-# ifdef PNG_READ_sPLT_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, ABSENT, 0 },
- { "sRGB", PNG_INFO_sRGB, png_sRGB,
-# ifdef PNG_READ_sRGB_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, START, 0 },
- { "tEXt", PNG_INFO_tEXt, png_tEXt,
-# ifdef PNG_READ_tEXt_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, START, 0 },
- { "tIME", PNG_INFO_tIME, png_tIME,
-# ifdef PNG_READ_tIME_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, START, 0 },
- { "tRNS", PNG_INFO_tRNS, png_tRNS,
-# ifdef PNG_READ_tRNS_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 0, ABSENT, 0 },
- { "zTXt", PNG_INFO_zTXt, png_zTXt,
-# ifdef PNG_READ_zTXt_SUPPORTED
- 0,
-# else
- 1,
-# endif
- 1, END, 0 },
-
- /* No libpng handling */
- { "sTER", PNG_INFO_sTER, png_sTER, 1, 1, START, 0 },
- { "vpAg", PNG_INFO_vpAg, png_vpAg, 1, 0, START, 0 },
-};
-
-#define NINFO ((int)((sizeof chunk_info)/(sizeof chunk_info[0])))
-
-static void
-clear_keep(void)
-{
- int i = NINFO;
- while (--i >= 0)
- chunk_info[i].keep = 0;
-}
-
-static int
-find(const char *name)
-{
- int i = NINFO;
- while (--i >= 0)
- {
- if (memcmp(chunk_info[i].name, name, 4) == 0)
- break;
- }
-
- return i;
-}
-
-static int
-findb(const png_byte *name)
-{
- int i = NINFO;
- while (--i >= 0)
- {
- if (memcmp(chunk_info[i].name, name, 4) == 0)
- break;
- }
-
- return i;
-}
-
-static int
-find_by_flag(png_uint_32 flag)
-{
- int i = NINFO;
-
- while (--i >= 0) if (chunk_info[i].flag == flag) return i;
-
- fprintf(stderr, "pngunknown: internal error\n");
- exit(4);
-}
-
-static int
-ancillary(const char *name)
-{
- return PNG_CHUNK_ANCILLARY(PNG_U32(name[0], name[1], name[2], name[3]));
-}
-
-#ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
-static int
-ancillaryb(const png_byte *name)
-{
- return PNG_CHUNK_ANCILLARY(PNG_U32(name[0], name[1], name[2], name[3]));
-}
-#endif
-
-/* Type of an error_ptr */
-typedef struct
-{
- jmp_buf error_return;
- png_structp png_ptr;
- png_infop info_ptr, end_ptr;
- png_uint_32 before_IDAT;
- png_uint_32 after_IDAT;
- int error_count;
- int warning_count;
- int keep; /* the default value */
- const char *program;
- const char *file;
- const char *test;
-} display;
-
-static const char init[] = "initialization";
-static const char cmd[] = "command line";
-
-static void
-init_display(display *d, const char *program)
-{
- memset(d, 0, sizeof *d);
- d->png_ptr = NULL;
- d->info_ptr = d->end_ptr = NULL;
- d->error_count = d->warning_count = 0;
- d->program = program;
- d->file = program;
- d->test = init;
-}
-
-static void
-clean_display(display *d)
-{
- png_destroy_read_struct(&d->png_ptr, &d->info_ptr, &d->end_ptr);
-
- /* This must not happen - it might cause an app crash */
- if (d->png_ptr != NULL || d->info_ptr != NULL || d->end_ptr != NULL)
- {
- fprintf(stderr, "%s(%s): png_destroy_read_struct error\n", d->file,
- d->test);
- exit(1);
- }
-}
-
-PNG_FUNCTION(void, display_exit, (display *d), static PNG_NORETURN)
-{
- ++(d->error_count);
-
- if (d->png_ptr != NULL)
- clean_display(d);
-
- /* During initialization and if this is a single command line argument set
- * exit now - there is only one test, otherwise longjmp to do the next test.
- */
- if (d->test == init || d->test == cmd)
- exit(1);
-
- longjmp(d->error_return, 1);
-}
-
-static int
-display_rc(const display *d, int strict)
-{
- return d->error_count + (strict ? d->warning_count : 0);
-}
-
-/* libpng error and warning callbacks */
-PNG_FUNCTION(void, (PNGCBAPI error), (png_structp png_ptr, const char *message),
- static PNG_NORETURN)
-{
- display *d = (display*)png_get_error_ptr(png_ptr);
-
- fprintf(stderr, "%s(%s): libpng error: %s\n", d->file, d->test, message);
- display_exit(d);
-}
-
-static void PNGCBAPI
-warning(png_structp png_ptr, const char *message)
-{
- display *d = (display*)png_get_error_ptr(png_ptr);
-
- fprintf(stderr, "%s(%s): libpng warning: %s\n", d->file, d->test, message);
- ++(d->warning_count);
-}
-
-static png_uint_32
-get_valid(display *d, png_infop info_ptr)
-{
- png_uint_32 flags = png_get_valid(d->png_ptr, info_ptr, (png_uint_32)~0);
-
- /* Map the text chunks back into the flags */
- {
- png_textp text;
- png_uint_32 ntext = png_get_text(d->png_ptr, info_ptr, &text, NULL);
-
- while (ntext > 0) switch (text[--ntext].compression)
- {
- case -1:
- flags |= PNG_INFO_tEXt;
- break;
- case 0:
- flags |= PNG_INFO_zTXt;
- break;
- case 1:
- case 2:
- flags |= PNG_INFO_iTXt;
- break;
- default:
- fprintf(stderr, "%s(%s): unknown text compression %d\n", d->file,
- d->test, text[ntext].compression);
- display_exit(d);
- }
- }
-
- return flags;
-}
-
-#ifdef PNG_READ_USER_CHUNKS_SUPPORTED
-static int PNGCBAPI
-read_callback(png_structp pp, png_unknown_chunkp pc)
-{
- /* This function mimics the behavior of png_set_keep_unknown_chunks by
- * returning '0' to keep the chunk and '1' to discard it.
- */
- display *d = voidcast(display*, png_get_user_chunk_ptr(pp));
- int chunk = findb(pc->name);
- int keep, discard;
-
- if (chunk < 0) /* not one in our list, so not a known chunk */
- keep = d->keep;
-
- else
- {
- keep = chunk_info[chunk].keep;
- if (keep == PNG_HANDLE_CHUNK_AS_DEFAULT)
- {
- /* See the comments in png.h - use the default for unknown chunks,
- * do not keep known chunks.
- */
- if (chunk_info[chunk].unknown)
- keep = d->keep;
-
- else
- keep = PNG_HANDLE_CHUNK_NEVER;
- }
- }
-
- switch (keep)
- {
- default:
- fprintf(stderr, "%s(%s): %d: unrecognized chunk option\n", d->file,
- d->test, chunk_info[chunk].keep);
- display_exit(d);
-
- case PNG_HANDLE_CHUNK_AS_DEFAULT:
- case PNG_HANDLE_CHUNK_NEVER:
- discard = 1/*handled; discard*/;
- break;
-
- case PNG_HANDLE_CHUNK_IF_SAFE:
- case PNG_HANDLE_CHUNK_ALWAYS:
- discard = 0/*not handled; keep*/;
- break;
- }
-
- /* Also store information about this chunk in the display, the relevant flag
- * is set if the chunk is to be kept ('not handled'.)
- */
- if (chunk >= 0) if (!discard) /* stupidity to stop a GCC warning */
- {
- png_uint_32 flag = chunk_info[chunk].flag;
-
- if (pc->location & PNG_AFTER_IDAT)
- d->after_IDAT |= flag;
-
- else
- d->before_IDAT |= flag;
- }
-
- /* However if there is no support to store unknown chunks don't ask libpng to
- * do it; there will be an png_error.
- */
-# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
- return discard;
-# else
- return 1; /*handled; discard*/
-# endif
-}
-#endif /* READ_USER_CHUNKS_SUPPORTED */
-
-#ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
-static png_uint_32
-get_unknown(display *d, png_infop info_ptr, int after_IDAT)
-{
- /* Create corresponding 'unknown' flags */
- png_uint_32 flags = 0;
-
- UNUSED(after_IDAT)
-
- {
- png_unknown_chunkp unknown;
- int num_unknown = png_get_unknown_chunks(d->png_ptr, info_ptr, &unknown);
-
- while (--num_unknown >= 0)
- {
- int chunk = findb(unknown[num_unknown].name);
-
- /* Chunks not known to pngunknown must be validated here; since they
- * must also be unknown to libpng the 'display->keep' behavior should
- * have been used.
- */
- if (chunk < 0) switch (d->keep)
- {
- default: /* impossible */
- case PNG_HANDLE_CHUNK_AS_DEFAULT:
- case PNG_HANDLE_CHUNK_NEVER:
- fprintf(stderr, "%s(%s): %s: %s: unknown chunk saved\n",
- d->file, d->test, d->keep ? "discard" : "default",
- unknown[num_unknown].name);
- ++(d->error_count);
- break;
-
- case PNG_HANDLE_CHUNK_IF_SAFE:
- if (!ancillaryb(unknown[num_unknown].name))
- {
- fprintf(stderr,
- "%s(%s): if-safe: %s: unknown critical chunk saved\n",
- d->file, d->test, unknown[num_unknown].name);
- ++(d->error_count);
- break;
- }
- /* FALLTHROUGH */ /* (safe) */
- case PNG_HANDLE_CHUNK_ALWAYS:
- break;
- }
-
- else
- flags |= chunk_info[chunk].flag;
- }
- }
-
- return flags;
-}
-#else /* SAVE_UNKNOWN_CHUNKS */
-static png_uint_32
-get_unknown(display *d, png_infop info_ptr, int after_IDAT)
- /* Otherwise this will return the cached values set by any user callback */
-{
- UNUSED(info_ptr);
-
- if (after_IDAT)
- return d->after_IDAT;
-
- else
- return d->before_IDAT;
-}
-
-# ifndef PNG_READ_USER_CHUNKS_SUPPORTED
- /* The #defines above should mean this is never reached, it's just here as
- * a check to ensure the logic is correct.
- */
-# error No store support and no user chunk support, this will not work
-# endif /* READ_USER_CHUNKS */
-#endif /* SAVE_UNKNOWN_CHUNKS */
-
-static int
-check(FILE *fp, int argc, const char **argv, png_uint_32p flags/*out*/,
- display *d, int set_callback)
-{
- int i, npasses, ipass;
- png_uint_32 height;
-
- d->keep = PNG_HANDLE_CHUNK_AS_DEFAULT;
- d->before_IDAT = 0;
- d->after_IDAT = 0;
-
- /* Some of these errors are permanently fatal and cause an exit here, others
- * are per-test and cause an error return.
- */
- d->png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, d, error,
- warning);
- if (d->png_ptr == NULL)
- {
- fprintf(stderr, "%s(%s): could not allocate png struct\n", d->file,
- d->test);
- /* Terminate here, this error is not test specific. */
- exit(1);
- }
-
- d->info_ptr = png_create_info_struct(d->png_ptr);
- d->end_ptr = png_create_info_struct(d->png_ptr);
- if (d->info_ptr == NULL || d->end_ptr == NULL)
- {
- fprintf(stderr, "%s(%s): could not allocate png info\n", d->file,
- d->test);
- clean_display(d);
- exit(1);
- }
-
- png_init_io(d->png_ptr, fp);
-
-# ifdef PNG_READ_USER_CHUNKS_SUPPORTED
- /* This is only done if requested by the caller; it interferes with the
- * standard store/save mechanism.
- */
- if (set_callback)
- png_set_read_user_chunk_fn(d->png_ptr, d, read_callback);
-# else
- UNUSED(set_callback)
-# endif
-
- /* Handle each argument in turn; multiple settings are possible for the same
- * chunk and multiple calls will occur (the last one should override all
- * preceding ones).
- */
- for (i=0; i<argc; ++i)
- {
- const char *equals = strchr(argv[i], '=');
-
- if (equals != NULL)
- {
- int chunk, option;
-
- if (strcmp(equals+1, "default") == 0)
- option = PNG_HANDLE_CHUNK_AS_DEFAULT;
- else if (strcmp(equals+1, "discard") == 0)
- option = PNG_HANDLE_CHUNK_NEVER;
- else if (strcmp(equals+1, "if-safe") == 0)
- option = PNG_HANDLE_CHUNK_IF_SAFE;
- else if (strcmp(equals+1, "save") == 0)
- option = PNG_HANDLE_CHUNK_ALWAYS;
- else
- {
- fprintf(stderr, "%s(%s): %s: unrecognized chunk option\n", d->file,
- d->test, argv[i]);
- display_exit(d);
- }
-
- switch (equals - argv[i])
- {
- case 4: /* chunk name */
- chunk = find(argv[i]);
-
- if (chunk >= 0)
- {
- /* These #if tests have the effect of skipping the arguments
- * if SAVE support is unavailable - we can't do a useful test
- * in this case, so we just check the arguments! This could
- * be improved in the future by using the read callback.
- */
-# if PNG_LIBPNG_VER >= 10700 &&\
- !defined(PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED)
- if (option < PNG_HANDLE_CHUNK_IF_SAFE)
-# endif /* 1.7+ SAVE_UNKNOWN_CHUNKS */
- {
- png_byte name[5];
-
- memcpy(name, chunk_info[chunk].name, 5);
- png_set_keep_unknown_chunks(d->png_ptr, option, name, 1);
- chunk_info[chunk].keep = option;
- }
- continue;
- }
-
- break;
-
- case 7: /* default */
- if (memcmp(argv[i], "default", 7) == 0)
- {
-# if PNG_LIBPNG_VER >= 10700 &&\
- !defined(PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED)
- if (option < PNG_HANDLE_CHUNK_IF_SAFE)
-# endif /* 1.7+ SAVE_UNKNOWN_CHUNKS */
- png_set_keep_unknown_chunks(d->png_ptr, option, NULL, 0);
-
- d->keep = option;
- continue;
- }
-
- break;
-
- case 3: /* all */
- if (memcmp(argv[i], "all", 3) == 0)
- {
-# if PNG_LIBPNG_VER >= 10700 &&\
- !defined(PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED)
- if (option < PNG_HANDLE_CHUNK_IF_SAFE)
-# endif /* 1.7+ SAVE_UNKNOWN_CHUNKS */
- png_set_keep_unknown_chunks(d->png_ptr, option, NULL, -1);
-
- d->keep = option;
-
- for (chunk = 0; chunk < NINFO; ++chunk)
- if (chunk_info[chunk].all)
- chunk_info[chunk].keep = option;
- continue;
- }
-
- break;
-
- default: /* some misplaced = */
-
- break;
- }
- }
-
- fprintf(stderr, "%s(%s): %s: unrecognized chunk argument\n", d->file,
- d->test, argv[i]);
- display_exit(d);
- }
-
- png_read_info(d->png_ptr, d->info_ptr);
-
- switch (png_get_interlace_type(d->png_ptr, d->info_ptr))
- {
- case PNG_INTERLACE_NONE:
- npasses = 1;
- break;
-
- case PNG_INTERLACE_ADAM7:
- npasses = PNG_INTERLACE_ADAM7_PASSES;
- break;
-
- default:
- /* Hard error because it is not test specific */
- fprintf(stderr, "%s(%s): invalid interlace type\n", d->file, d->test);
- clean_display(d);
- exit(1);
- }
-
- /* Skip the image data, if IDAT is not being handled then don't do this
- * because it will cause a CRC error.
- */
- if (chunk_info[0/*IDAT*/].keep == PNG_HANDLE_CHUNK_AS_DEFAULT)
- {
- png_start_read_image(d->png_ptr);
- height = png_get_image_height(d->png_ptr, d->info_ptr);
-
- if (npasses > 1)
- {
- png_uint_32 width = png_get_image_width(d->png_ptr, d->info_ptr);
-
- for (ipass=0; ipass<npasses; ++ipass)
- {
- png_uint_32 wPass = PNG_PASS_COLS(width, ipass);
-
- if (wPass > 0)
- {
- png_uint_32 y;
-
- for (y=0; y<height; ++y) if (PNG_ROW_IN_INTERLACE_PASS(y, ipass))
- png_read_row(d->png_ptr, NULL, NULL);
- }
- }
- } /* interlaced */
-
- else /* not interlaced */
- {
- png_uint_32 y;
-
- for (y=0; y<height; ++y)
- png_read_row(d->png_ptr, NULL, NULL);
- }
- }
-
- png_read_end(d->png_ptr, d->end_ptr);
-
- flags[0] = get_valid(d, d->info_ptr);
- flags[1] = get_unknown(d, d->info_ptr, 0/*before IDAT*/);
-
- /* Only png_read_png sets PNG_INFO_IDAT! */
- flags[chunk_info[0/*IDAT*/].keep != PNG_HANDLE_CHUNK_AS_DEFAULT] |=
- PNG_INFO_IDAT;
-
- flags[2] = get_valid(d, d->end_ptr);
- flags[3] = get_unknown(d, d->end_ptr, 1/*after IDAT*/);
-
- clean_display(d);
-
- return d->keep;
-}
-
-static void
-check_error(display *d, png_uint_32 flags, const char *message)
-{
- while (flags)
- {
- png_uint_32 flag = flags & -(png_int_32)flags;
- int i = find_by_flag(flag);
-
- fprintf(stderr, "%s(%s): chunk %s: %s\n", d->file, d->test,
- chunk_info[i].name, message);
- ++(d->error_count);
-
- flags &= ~flag;
- }
-}
-
-static void
-check_handling(display *d, int def, png_uint_32 chunks, png_uint_32 known,
- png_uint_32 unknown, const char *position, int set_callback)
-{
- while (chunks)
- {
- png_uint_32 flag = chunks & -(png_int_32)chunks;
- int i = find_by_flag(flag);
- int keep = chunk_info[i].keep;
- const char *type;
- const char *errorx = NULL;
-
- if (chunk_info[i].unknown)
- {
- if (keep == PNG_HANDLE_CHUNK_AS_DEFAULT)
- {
- type = "UNKNOWN (default)";
- keep = def;
- }
-
- else
- type = "UNKNOWN (specified)";
-
- if (flag & known)
- errorx = "chunk processed";
-
- else switch (keep)
- {
- case PNG_HANDLE_CHUNK_AS_DEFAULT:
- if (flag & unknown)
- errorx = "DEFAULT: unknown chunk saved";
- break;
-
- case PNG_HANDLE_CHUNK_NEVER:
- if (flag & unknown)
- errorx = "DISCARD: unknown chunk saved";
- break;
-
- case PNG_HANDLE_CHUNK_IF_SAFE:
- if (ancillary(chunk_info[i].name))
- {
- if (!(flag & unknown))
- errorx = "IF-SAFE: unknown ancillary chunk lost";
- }
-
- else if (flag & unknown)
- errorx = "IF-SAFE: unknown critical chunk saved";
- break;
-
- case PNG_HANDLE_CHUNK_ALWAYS:
- if (!(flag & unknown))
- errorx = "SAVE: unknown chunk lost";
- break;
-
- default:
- errorx = "internal error: bad keep";
- break;
- }
- } /* unknown chunk */
-
- else /* known chunk */
- {
- type = "KNOWN";
-
- if (flag & known)
- {
- /* chunk was processed, it won't have been saved because that is
- * caught below when checking for inconsistent processing.
- */
- if (keep != PNG_HANDLE_CHUNK_AS_DEFAULT)
- errorx = "!DEFAULT: known chunk processed";
- }
-
- else /* not processed */ switch (keep)
- {
- case PNG_HANDLE_CHUNK_AS_DEFAULT:
- errorx = "DEFAULT: known chunk not processed";
- break;
-
- case PNG_HANDLE_CHUNK_NEVER:
- if (flag & unknown)
- errorx = "DISCARD: known chunk saved";
- break;
-
- case PNG_HANDLE_CHUNK_IF_SAFE:
- if (ancillary(chunk_info[i].name))
- {
- if (!(flag & unknown))
- errorx = "IF-SAFE: known ancillary chunk lost";
- }
-
- else if (flag & unknown)
- errorx = "IF-SAFE: known critical chunk saved";
- break;
-
- case PNG_HANDLE_CHUNK_ALWAYS:
- if (!(flag & unknown))
- errorx = "SAVE: known chunk lost";
- break;
-
- default:
- errorx = "internal error: bad keep (2)";
- break;
- }
- }
-
- if (errorx != NULL)
- {
- ++(d->error_count);
- fprintf(stderr, "%s(%s%s): %s %s %s: %s\n", d->file, d->test,
- set_callback ? ",callback" : "",
- type, chunk_info[i].name, position, errorx);
- }
-
- chunks &= ~flag;
- }
-}
-
-static void
-perform_one_test(FILE *fp, int argc, const char **argv,
- png_uint_32 *default_flags, display *d, int set_callback)
-{
- int def;
- png_uint_32 flags[2][4];
-
- rewind(fp);
- clear_keep();
- memcpy(flags[0], default_flags, sizeof flags[0]);
-
- def = check(fp, argc, argv, flags[1], d, set_callback);
-
- /* If IDAT is being handled as unknown the image read is skipped and all the
- * IDATs after the first end up in the end info struct, so in this case add
- * IDAT to the list of unknowns. (Do this after 'check' above sets the
- * chunk_info 'keep' fields.)
- *
- * Note that the flag setting has to be in the 'known' field to avoid
- * triggering the consistency check below and the flag must only be set if
- * there are multiple IDATs, so if the check above did find an unknown IDAT
- * after IDAT.
- */
- if (chunk_info[0/*IDAT*/].keep != PNG_HANDLE_CHUNK_AS_DEFAULT &&
- (flags[1][3] & PNG_INFO_IDAT) != 0)
- flags[0][2] |= PNG_INFO_IDAT;
-
- /* Chunks should either be known or unknown, never both and this should apply
- * whether the chunk is before or after the IDAT (actually, the app can
- * probably change this by swapping the handling after the image, but this
- * test does not do that.)
- */
- check_error(d, (flags[0][0]|flags[0][2]) & (flags[0][1]|flags[0][3]),
- "chunk handled inconsistently in count tests");
- check_error(d, (flags[1][0]|flags[1][2]) & (flags[1][1]|flags[1][3]),
- "chunk handled inconsistently in option tests");
-
- /* Now find out what happened to each chunk before and after the IDAT and
- * determine if the behavior was correct. First some basic sanity checks,
- * any known chunk should be known in the original count, any unknown chunk
- * should be either known or unknown in the original.
- */
- {
- png_uint_32 test;
-
- test = flags[1][0] & ~flags[0][0];
- check_error(d, test, "new known chunk before IDAT");
- test = flags[1][1] & ~(flags[0][0] | flags[0][1]);
- check_error(d, test, "new unknown chunk before IDAT");
- test = flags[1][2] & ~flags[0][2];
- check_error(d, test, "new known chunk after IDAT");
- test = flags[1][3] & ~(flags[0][2] | flags[0][3]);
- check_error(d, test, "new unknown chunk after IDAT");
- }
-
- /* Now each chunk in the original list should have been handled according to
- * the options set for that chunk, regardless of whether libpng knows about
- * it or not.
- */
- check_handling(d, def, flags[0][0] | flags[0][1], flags[1][0], flags[1][1],
- "before IDAT", set_callback);
- check_handling(d, def, flags[0][2] | flags[0][3], flags[1][2], flags[1][3],
- "after IDAT", set_callback);
-}
-
-static void
-perform_one_test_safe(FILE *fp, int argc, const char **argv,
- png_uint_32 *default_flags, display *d, const char *test)
-{
- if (setjmp(d->error_return) == 0)
- {
- d->test = test; /* allow use of d->error_return */
-# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
- perform_one_test(fp, argc, argv, default_flags, d, 0);
-# endif
-# ifdef PNG_READ_USER_CHUNKS_SUPPORTED
- perform_one_test(fp, argc, argv, default_flags, d, 1);
-# endif
- d->test = init; /* prevent use of d->error_return */
- }
-}
-
-static const char *standard_tests[] =
-{
- "discard", "default=discard", 0,
- "save", "default=save", 0,
- "if-safe", "default=if-safe", 0,
- "vpAg", "vpAg=if-safe", 0,
- "sTER", "sTER=if-safe", 0,
- "IDAT", "default=discard", "IDAT=save", 0,
- "sAPI", "bKGD=save", "cHRM=save", "gAMA=save", "all=discard", "iCCP=save",
- "sBIT=save", "sRGB=save", "eXIf=save", 0,
- 0/*end*/
-};
-
-static PNG_NORETURN void
-usage(const char *program, const char *reason)
-{
- fprintf(stderr, "pngunknown: %s: usage:\n %s [--strict] "
- "--default|{(CHNK|default|all)=(default|discard|if-safe|save)} "
- "testfile.png\n", reason, program);
- exit(99);
-}
-
-int
-main(int argc, const char **argv)
-{
- FILE *fp;
- png_uint_32 default_flags[4/*valid,unknown{before,after}*/];
- int strict = 0, default_tests = 0;
- const char *count_argv = "default=save";
- const char *touch_file = NULL;
- display d;
-
- init_display(&d, argv[0]);
-
- while (++argv, --argc > 0)
- {
- if (strcmp(*argv, "--strict") == 0)
- strict = 1;
-
- else if (strcmp(*argv, "--default") == 0)
- default_tests = 1;
-
- else if (strcmp(*argv, "--touch") == 0)
- {
- if (argc > 1)
- touch_file = *++argv, --argc;
-
- else
- usage(d.program, "--touch: missing file name");
- }
-
- else
- break;
- }
-
- /* A file name is required, but there should be no other arguments if
- * --default was specified.
- */
- if (argc <= 0)
- usage(d.program, "missing test file");
-
- /* GCC BUG: if (default_tests && argc != 1) triggers some weird GCC argc
- * optimization which causes warnings with -Wstrict-overflow!
- */
- else if (default_tests) if (argc != 1)
- usage(d.program, "extra arguments");
-
- /* The name of the test file is the last argument; remove it. */
- d.file = argv[--argc];
-
- fp = fopen(d.file, "rb");
- if (fp == NULL)
- {
- perror(d.file);
- exit(99);
- }
-
- /* First find all the chunks, known and unknown, in the test file, a failure
- * here aborts the whole test.
- *
- * If 'save' is supported then the normal saving method should happen,
- * otherwise if 'read' is supported then the read callback will do the
- * same thing. If both are supported the 'read' callback won't be
- * instantiated by default. If 'save' is *not* supported then a user
- * callback is required even though we can call png_get_unknown_chunks.
- */
- if (check(fp, 1, &count_argv, default_flags, &d,
-# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
- 0
-# else
- 1
-# endif
- ) != PNG_HANDLE_CHUNK_ALWAYS)
- {
- fprintf(stderr, "%s: %s: internal error\n", d.program, d.file);
- exit(99);
- }
-
- /* Now find what the various supplied options cause to change: */
- if (!default_tests)
- {
- d.test = cmd; /* acts as a flag to say exit, do not longjmp */
-# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
- perform_one_test(fp, argc, argv, default_flags, &d, 0);
-# endif
-# ifdef PNG_READ_USER_CHUNKS_SUPPORTED
- perform_one_test(fp, argc, argv, default_flags, &d, 1);
-# endif
- d.test = init;
- }
-
- else
- {
- const char **test = standard_tests;
-
- /* Set the exit_test pointer here so we can continue after a libpng error.
- * NOTE: this leaks memory because the png_struct data from the failing
- * test is never freed.
- */
- while (*test)
- {
- const char *this_test = *test++;
- const char **next = test;
- int count = display_rc(&d, strict), new_count;
- const char *result;
- int arg_count = 0;
-
- while (*next) ++next, ++arg_count;
-
- perform_one_test_safe(fp, arg_count, test, default_flags, &d,
- this_test);
-
- new_count = display_rc(&d, strict);
-
- if (new_count == count)
- result = "PASS";
-
- else
- result = "FAIL";
-
- printf("%s: %s %s\n", result, d.program, this_test);
-
- test = next+1;
- }
- }
-
- fclose(fp);
-
- if (display_rc(&d, strict) == 0)
- {
- /* Success, touch the success file if appropriate */
- if (touch_file != NULL)
- {
- FILE *fsuccess = fopen(touch_file, "wt");
-
- if (fsuccess != NULL)
- {
- int err = 0;
- fprintf(fsuccess, "PNG unknown tests succeeded\n");
- fflush(fsuccess);
- err = ferror(fsuccess);
-
- if (fclose(fsuccess) || err)
- {
- fprintf(stderr, "%s: write failed\n", touch_file);
- exit(99);
- }
- }
-
- else
- {
- fprintf(stderr, "%s: open failed\n", touch_file);
- exit(99);
- }
- }
-
- return 0;
- }
-
- return 1;
-}
-
-#else /* !(READ_USER_CHUNKS || SAVE_UNKNOWN_CHUNKS) */
-int
-main(void)
-{
- fprintf(stderr,
- " test ignored: no support to find out about unknown chunks\n");
- /* So the test is skipped: */
- return SKIP;
-}
-#endif /* READ_USER_CHUNKS || SAVE_UNKNOWN_CHUNKS */
-
-#else /* !(SET_UNKNOWN_CHUNKS && READ) */
-int
-main(void)
-{
- fprintf(stderr,
- " test ignored: no support to modify unknown chunk handling\n");
- /* So the test is skipped: */
- return SKIP;
-}
-#endif /* SET_UNKNOWN_CHUNKS && READ*/
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngunknown.o b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngunknown.o
deleted file mode 100644
index 5e24e68..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngunknown.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngvalid.c b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngvalid.c
deleted file mode 100644
index d800110..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngvalid.c
+++ /dev/null
@@ -1,12230 +0,0 @@
-
-/* pngvalid.c - validate libpng by constructing then reading png files.
- *
- * Last changed in libpng 1.6.31 [July 27, 2017]
- * Copyright (c) 2014-2017 John Cunningham Bowler
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * NOTES:
- * This is a C program that is intended to be linked against libpng. It
- * generates bitmaps internally, stores them as PNG files (using the
- * sequential write code) then reads them back (using the sequential
- * read code) and validates that the result has the correct data.
- *
- * The program can be modified and extended to test the correctness of
- * transformations performed by libpng.
- */
-
-#define _POSIX_SOURCE 1
-#define _ISOC99_SOURCE 1 /* For floating point */
-#define _GNU_SOURCE 1 /* For the floating point exception extension */
-#define _BSD_SOURCE 1 /* For the floating point exception extension */
-
-#include <signal.h>
-#include <stdio.h>
-
-#if defined(HAVE_CONFIG_H) && !defined(PNG_NO_CONFIG_H)
-# include <config.h>
-#endif
-
-#ifdef HAVE_FEENABLEEXCEPT /* from config.h, if included */
-# include <fenv.h>
-#endif
-
-#ifndef FE_DIVBYZERO
-# define FE_DIVBYZERO 0
-#endif
-#ifndef FE_INVALID
-# define FE_INVALID 0
-#endif
-#ifndef FE_OVERFLOW
-# define FE_OVERFLOW 0
-#endif
-
-/* Define the following to use this test against your installed libpng, rather
- * than the one being built here:
- */
-#ifdef PNG_FREESTANDING_TESTS
-# include <png.h>
-#else
-# include "../../png.h"
-#endif
-
-#ifdef PNG_ZLIB_HEADER
-# include PNG_ZLIB_HEADER
-#else
-# include <zlib.h> /* For crc32 */
-#endif
-
-/* 1.6.1 added support for the configure test harness, which uses 77 to indicate
- * a skipped test, in earlier versions we need to succeed on a skipped test, so:
- */
-#if PNG_LIBPNG_VER >= 10601 && defined(HAVE_CONFIG_H)
-# define SKIP 77
-#else
-# define SKIP 0
-#endif
-
-/* pngvalid requires write support and one of the fixed or floating point APIs.
- */
-#if defined(PNG_WRITE_SUPPORTED) &&\
- (defined(PNG_FIXED_POINT_SUPPORTED) || defined(PNG_FLOATING_POINT_SUPPORTED))
-
-#if PNG_LIBPNG_VER < 10500
-/* This deliberately lacks the const. */
-typedef png_byte *png_const_bytep;
-
-/* This is copied from 1.5.1 png.h: */
-#define PNG_INTERLACE_ADAM7_PASSES 7
-#define PNG_PASS_START_ROW(pass) (((1U&~(pass))<<(3-((pass)>>1)))&7)
-#define PNG_PASS_START_COL(pass) (((1U& (pass))<<(3-(((pass)+1)>>1)))&7)
-#define PNG_PASS_ROW_SHIFT(pass) ((pass)>2?(8-(pass))>>1:3)
-#define PNG_PASS_COL_SHIFT(pass) ((pass)>1?(7-(pass))>>1:3)
-#define PNG_PASS_ROWS(height, pass) (((height)+(((1<<PNG_PASS_ROW_SHIFT(pass))\
- -1)-PNG_PASS_START_ROW(pass)))>>PNG_PASS_ROW_SHIFT(pass))
-#define PNG_PASS_COLS(width, pass) (((width)+(((1<<PNG_PASS_COL_SHIFT(pass))\
- -1)-PNG_PASS_START_COL(pass)))>>PNG_PASS_COL_SHIFT(pass))
-#define PNG_ROW_FROM_PASS_ROW(yIn, pass) \
- (((yIn)<<PNG_PASS_ROW_SHIFT(pass))+PNG_PASS_START_ROW(pass))
-#define PNG_COL_FROM_PASS_COL(xIn, pass) \
- (((xIn)<<PNG_PASS_COL_SHIFT(pass))+PNG_PASS_START_COL(pass))
-#define PNG_PASS_MASK(pass,off) ( \
- ((0x110145AFU>>(((7-(off))-(pass))<<2)) & 0xFU) | \
- ((0x01145AF0U>>(((7-(off))-(pass))<<2)) & 0xF0U))
-#define PNG_ROW_IN_INTERLACE_PASS(y, pass) \
- ((PNG_PASS_MASK(pass,0) >> ((y)&7)) & 1)
-#define PNG_COL_IN_INTERLACE_PASS(x, pass) \
- ((PNG_PASS_MASK(pass,1) >> ((x)&7)) & 1)
-
-/* These are needed too for the default build: */
-#define PNG_WRITE_16BIT_SUPPORTED
-#define PNG_READ_16BIT_SUPPORTED
-
-/* This comes from pnglibconf.h after 1.5: */
-#define PNG_FP_1 100000
-#define PNG_GAMMA_THRESHOLD_FIXED\
- ((png_fixed_point)(PNG_GAMMA_THRESHOLD * PNG_FP_1))
-#endif
-
-#if PNG_LIBPNG_VER < 10600
- /* 1.6.0 constifies many APIs, the following exists to allow pngvalid to be
- * compiled against earlier versions.
- */
-# define png_const_structp png_structp
-#endif
-
-#ifndef RELEASE_BUILD
- /* RELEASE_BUILD is true for releases and release candidates: */
-# define RELEASE_BUILD (PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC)
-#endif
-#if RELEASE_BUILD
-# define debugonly(something)
-#else /* !RELEASE_BUILD */
-# define debugonly(something) something
-#endif /* !RELEASE_BUILD */
-
-#include <float.h> /* For floating point constants */
-#include <stdlib.h> /* For malloc */
-#include <string.h> /* For memcpy, memset */
-#include <math.h> /* For floor */
-
-/* Convenience macros. */
-#define CHUNK(a,b,c,d) (((a)<<24)+((b)<<16)+((c)<<8)+(d))
-#define CHUNK_IHDR CHUNK(73,72,68,82)
-#define CHUNK_PLTE CHUNK(80,76,84,69)
-#define CHUNK_IDAT CHUNK(73,68,65,84)
-#define CHUNK_IEND CHUNK(73,69,78,68)
-#define CHUNK_cHRM CHUNK(99,72,82,77)
-#define CHUNK_gAMA CHUNK(103,65,77,65)
-#define CHUNK_sBIT CHUNK(115,66,73,84)
-#define CHUNK_sRGB CHUNK(115,82,71,66)
-
-/* Unused formal parameter errors are removed using the following macro which is
- * expected to have no bad effects on performance.
- */
-#ifndef UNUSED
-# if defined(__GNUC__) || defined(_MSC_VER)
-# define UNUSED(param) (void)param;
-# else
-# define UNUSED(param)
-# endif
-#endif
-
-/***************************** EXCEPTION HANDLING *****************************/
-#ifdef PNG_FREESTANDING_TESTS
-# include <cexcept.h>
-#else
-# include "../visupng/cexcept.h"
-#endif
-
-#ifdef __cplusplus
-# define this not_the_cpp_this
-# define new not_the_cpp_new
-# define voidcast(type, value) static_cast<type>(value)
-#else
-# define voidcast(type, value) (value)
-#endif /* __cplusplus */
-
-struct png_store;
-define_exception_type(struct png_store*);
-
-/* The following are macros to reduce typing everywhere where the well known
- * name 'the_exception_context' must be defined.
- */
-#define anon_context(ps) struct exception_context *the_exception_context = \
- &(ps)->exception_context
-#define context(ps,fault) anon_context(ps); png_store *fault
-
-/* This macro returns the number of elements in an array as an (unsigned int),
- * it is necessary to avoid the inability of certain versions of GCC to use
- * the value of a compile-time constant when performing range checks. It must
- * be passed an array name.
- */
-#define ARRAY_SIZE(a) ((unsigned int)((sizeof (a))/(sizeof (a)[0])))
-
-/* GCC BUG 66447 (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66447) requires
- * some broken GCC versions to be fixed up to avoid invalid whining about auto
- * variables that are *not* changed within the scope of a setjmp being changed.
- *
- * Feel free to extend the list of broken versions.
- */
-#define is_gnu(major,minor)\
- (defined __GNUC__) && __GNUC__ == (major) && __GNUC_MINOR__ == (minor)
-#define is_gnu_patch(major,minor,patch)\
- is_gnu(major,minor) && __GNUC_PATCHLEVEL__ == 0
-/* For the moment just do it always; all versions of GCC seem to be broken: */
-#ifdef __GNUC__
- const void * volatile make_volatile_for_gnu;
-# define gnu_volatile(x) make_volatile_for_gnu = &x;
-#else /* !GNUC broken versions */
-# define gnu_volatile(x)
-#endif /* !GNUC broken versions */
-
-/******************************* UTILITIES ************************************/
-/* Error handling is particularly problematic in production code - error
- * handlers often themselves have bugs which lead to programs that detect
- * minor errors crashing. The following functions deal with one very
- * common class of errors in error handlers - attempting to format error or
- * warning messages into buffers that are too small.
- */
-static size_t safecat(char *buffer, size_t bufsize, size_t pos,
- const char *cat)
-{
- while (pos < bufsize && cat != NULL && *cat != 0)
- buffer[pos++] = *cat++;
-
- if (pos >= bufsize)
- pos = bufsize-1;
-
- buffer[pos] = 0;
- return pos;
-}
-
-static size_t safecatn(char *buffer, size_t bufsize, size_t pos, int n)
-{
- char number[64];
- sprintf(number, "%d", n);
- return safecat(buffer, bufsize, pos, number);
-}
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
-static size_t safecatd(char *buffer, size_t bufsize, size_t pos, double d,
- int precision)
-{
- char number[64];
- sprintf(number, "%.*f", precision, d);
- return safecat(buffer, bufsize, pos, number);
-}
-#endif
-
-static const char invalid[] = "invalid";
-static const char sep[] = ": ";
-
-static const char *colour_types[8] =
-{
- "grayscale", invalid, "truecolour", "indexed-colour",
- "grayscale with alpha", invalid, "truecolour with alpha", invalid
-};
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
-/* Convert a double precision value to fixed point. */
-static png_fixed_point
-fix(double d)
-{
- d = floor(d * PNG_FP_1 + .5);
- return (png_fixed_point)d;
-}
-#endif /* PNG_READ_SUPPORTED */
-
-/* Generate random bytes. This uses a boring repeatable algorithm and it
- * is implemented here so that it gives the same set of numbers on every
- * architecture. It's a linear congruential generator (Knuth or Sedgewick
- * "Algorithms") but it comes from the 'feedback taps' table in Horowitz and
- * Hill, "The Art of Electronics" (Pseudo-Random Bit Sequences and Noise
- * Generation.)
- */
-static void
-make_random_bytes(png_uint_32* seed, void* pv, size_t size)
-{
- png_uint_32 u0 = seed[0], u1 = seed[1];
- png_bytep bytes = voidcast(png_bytep, pv);
-
- /* There are thirty three bits, the next bit in the sequence is bit-33 XOR
- * bit-20. The top 1 bit is in u1, the bottom 32 are in u0.
- */
- size_t i;
- for (i=0; i<size; ++i)
- {
- /* First generate 8 new bits then shift them in at the end. */
- png_uint_32 u = ((u0 >> (20-8)) ^ ((u1 << 7) | (u0 >> (32-7)))) & 0xff;
- u1 <<= 8;
- u1 |= u0 >> 24;
- u0 <<= 8;
- u0 |= u;
- *bytes++ = (png_byte)u;
- }
-
- seed[0] = u0;
- seed[1] = u1;
-}
-
-static void
-make_four_random_bytes(png_uint_32* seed, png_bytep bytes)
-{
- make_random_bytes(seed, bytes, 4);
-}
-
-#if defined PNG_READ_SUPPORTED || defined PNG_WRITE_tRNS_SUPPORTED ||\
- defined PNG_WRITE_FILTER_SUPPORTED
-static void
-randomize(void *pv, size_t size)
-{
- static png_uint_32 random_seed[2] = {0x56789abc, 0xd};
- make_random_bytes(random_seed, pv, size);
-}
-
-#define R8(this) randomize(&(this), sizeof (this))
-
-#ifdef PNG_READ_SUPPORTED
-static png_byte
-random_byte(void)
-{
- unsigned char b1[1];
- randomize(b1, sizeof b1);
- return b1[0];
-}
-#endif /* READ */
-
-static png_uint_16
-random_u16(void)
-{
- unsigned char b2[2];
- randomize(b2, sizeof b2);
- return png_get_uint_16(b2);
-}
-
-#if defined PNG_READ_RGB_TO_GRAY_SUPPORTED ||\
- defined PNG_READ_FILLER_SUPPORTED
-static png_uint_32
-random_u32(void)
-{
- unsigned char b4[4];
- randomize(b4, sizeof b4);
- return png_get_uint_32(b4);
-}
-#endif /* READ_FILLER || READ_RGB_TO_GRAY */
-
-#endif /* READ || WRITE_tRNS || WRITE_FILTER */
-
-#if defined PNG_READ_TRANSFORMS_SUPPORTED ||\
- defined PNG_WRITE_FILTER_SUPPORTED
-static unsigned int
-random_mod(unsigned int max)
-{
- return random_u16() % max; /* 0 .. max-1 */
-}
-#endif /* READ_TRANSFORMS || WRITE_FILTER */
-
-#if (defined PNG_READ_RGB_TO_GRAY_SUPPORTED) ||\
- (defined PNG_READ_FILLER_SUPPORTED)
-static int
-random_choice(void)
-{
- return random_byte() & 1;
-}
-#endif /* READ_RGB_TO_GRAY || READ_FILLER */
-
-/* A numeric ID based on PNG file characteristics. The 'do_interlace' field
- * simply records whether pngvalid did the interlace itself or whether it
- * was done by libpng. Width and height must be less than 256. 'palette' is an
- * index of the palette to use for formats with a palette otherwise a boolean
- * indicating if a tRNS chunk was generated.
- */
-#define FILEID(col, depth, palette, interlace, width, height, do_interlace) \
- ((png_uint_32)((col) + ((depth)<<3) + ((palette)<<8) + ((interlace)<<13) + \
- (((do_interlace)!=0)<<15) + ((width)<<16) + ((height)<<24)))
-
-#define COL_FROM_ID(id) ((png_byte)((id)& 0x7U))
-#define DEPTH_FROM_ID(id) ((png_byte)(((id) >> 3) & 0x1fU))
-#define PALETTE_FROM_ID(id) (((id) >> 8) & 0x1f)
-#define INTERLACE_FROM_ID(id) ((png_byte)(((id) >> 13) & 0x3))
-#define DO_INTERLACE_FROM_ID(id) ((int)(((id)>>15) & 1))
-#define WIDTH_FROM_ID(id) (((id)>>16) & 0xff)
-#define HEIGHT_FROM_ID(id) (((id)>>24) & 0xff)
-
-/* Utility to construct a standard name for a standard image. */
-static size_t
-standard_name(char *buffer, size_t bufsize, size_t pos, png_byte colour_type,
- int bit_depth, unsigned int npalette, int interlace_type,
- png_uint_32 w, png_uint_32 h, int do_interlace)
-{
- pos = safecat(buffer, bufsize, pos, colour_types[colour_type]);
- if (colour_type == 3) /* must have a palette */
- {
- pos = safecat(buffer, bufsize, pos, "[");
- pos = safecatn(buffer, bufsize, pos, npalette);
- pos = safecat(buffer, bufsize, pos, "]");
- }
-
- else if (npalette != 0)
- pos = safecat(buffer, bufsize, pos, "+tRNS");
-
- pos = safecat(buffer, bufsize, pos, " ");
- pos = safecatn(buffer, bufsize, pos, bit_depth);
- pos = safecat(buffer, bufsize, pos, " bit");
-
- if (interlace_type != PNG_INTERLACE_NONE)
- {
- pos = safecat(buffer, bufsize, pos, " interlaced");
- if (do_interlace)
- pos = safecat(buffer, bufsize, pos, "(pngvalid)");
- else
- pos = safecat(buffer, bufsize, pos, "(libpng)");
- }
-
- if (w > 0 || h > 0)
- {
- pos = safecat(buffer, bufsize, pos, " ");
- pos = safecatn(buffer, bufsize, pos, w);
- pos = safecat(buffer, bufsize, pos, "x");
- pos = safecatn(buffer, bufsize, pos, h);
- }
-
- return pos;
-}
-
-static size_t
-standard_name_from_id(char *buffer, size_t bufsize, size_t pos, png_uint_32 id)
-{
- return standard_name(buffer, bufsize, pos, COL_FROM_ID(id),
- DEPTH_FROM_ID(id), PALETTE_FROM_ID(id), INTERLACE_FROM_ID(id),
- WIDTH_FROM_ID(id), HEIGHT_FROM_ID(id), DO_INTERLACE_FROM_ID(id));
-}
-
-/* Convenience API and defines to list valid formats. Note that 16 bit read and
- * write support is required to do 16 bit read tests (we must be able to make a
- * 16 bit image to test!)
- */
-#ifdef PNG_WRITE_16BIT_SUPPORTED
-# define WRITE_BDHI 4
-# ifdef PNG_READ_16BIT_SUPPORTED
-# define READ_BDHI 4
-# define DO_16BIT
-# endif
-#else
-# define WRITE_BDHI 3
-#endif
-#ifndef DO_16BIT
-# define READ_BDHI 3
-#endif
-
-/* The following defines the number of different palettes to generate for
- * each log bit depth of a colour type 3 standard image.
- */
-#define PALETTE_COUNT(bit_depth) ((bit_depth) > 4 ? 1U : 16U)
-
-static int
-next_format(png_bytep colour_type, png_bytep bit_depth,
- unsigned int* palette_number, int low_depth_gray, int tRNS)
-{
- if (*bit_depth == 0)
- {
- *colour_type = 0;
- if (low_depth_gray)
- *bit_depth = 1;
- else
- *bit_depth = 8;
- *palette_number = 0;
- return 1;
- }
-
- if (*colour_type < 4/*no alpha channel*/)
- {
- /* Add multiple palettes for colour type 3, one image with tRNS
- * and one without for other non-alpha formats:
- */
- unsigned int pn = ++*palette_number;
- png_byte ct = *colour_type;
-
- if (((ct == 0/*GRAY*/ || ct/*RGB*/ == 2) && tRNS && pn < 2) ||
- (ct == 3/*PALETTE*/ && pn < PALETTE_COUNT(*bit_depth)))
- return 1;
-
- /* No: next bit depth */
- *palette_number = 0;
- }
-
- *bit_depth = (png_byte)(*bit_depth << 1);
-
- /* Palette images are restricted to 8 bit depth */
- if (*bit_depth <= 8
-#ifdef DO_16BIT
- || (*colour_type != 3 && *bit_depth <= 16)
-#endif
- )
- return 1;
-
- /* Move to the next color type, or return 0 at the end. */
- switch (*colour_type)
- {
- case 0:
- *colour_type = 2;
- *bit_depth = 8;
- return 1;
-
- case 2:
- *colour_type = 3;
- *bit_depth = 1;
- return 1;
-
- case 3:
- *colour_type = 4;
- *bit_depth = 8;
- return 1;
-
- case 4:
- *colour_type = 6;
- *bit_depth = 8;
- return 1;
-
- default:
- return 0;
- }
-}
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
-static unsigned int
-sample(png_const_bytep row, png_byte colour_type, png_byte bit_depth,
- png_uint_32 x, unsigned int sample_index, int swap16, int littleendian)
-{
- png_uint_32 bit_index, result;
-
- /* Find a sample index for the desired sample: */
- x *= bit_depth;
- bit_index = x;
-
- if ((colour_type & 1) == 0) /* !palette */
- {
- if (colour_type & 2)
- bit_index *= 3;
-
- if (colour_type & 4)
- bit_index += x; /* Alpha channel */
-
- /* Multiple channels; select one: */
- if (colour_type & (2+4))
- bit_index += sample_index * bit_depth;
- }
-
- /* Return the sample from the row as an integer. */
- row += bit_index >> 3;
- result = *row;
-
- if (bit_depth == 8)
- return result;
-
- else if (bit_depth > 8)
- {
- if (swap16)
- return (*++row << 8) + result;
- else
- return (result << 8) + *++row;
- }
-
- /* Less than 8 bits per sample. By default PNG has the big end of
- * the egg on the left of the screen, but if littleendian is set
- * then the big end is on the right.
- */
- bit_index &= 7;
-
- if (!littleendian)
- bit_index = 8-bit_index-bit_depth;
-
- return (result >> bit_index) & ((1U<<bit_depth)-1);
-}
-#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
-
-/* Copy a single pixel, of a given size, from one buffer to another -
- * while this is basically bit addressed there is an implicit assumption
- * that pixels 8 or more bits in size are byte aligned and that pixels
- * do not otherwise cross byte boundaries. (This is, so far as I know,
- * universally true in bitmap computer graphics. [JCB 20101212])
- *
- * NOTE: The to and from buffers may be the same.
- */
-static void
-pixel_copy(png_bytep toBuffer, png_uint_32 toIndex,
- png_const_bytep fromBuffer, png_uint_32 fromIndex, unsigned int pixelSize,
- int littleendian)
-{
- /* Assume we can multiply by 'size' without overflow because we are
- * just working in a single buffer.
- */
- toIndex *= pixelSize;
- fromIndex *= pixelSize;
- if (pixelSize < 8) /* Sub-byte */
- {
- /* Mask to select the location of the copied pixel: */
- unsigned int destMask = ((1U<<pixelSize)-1) <<
- (littleendian ? toIndex&7 : 8-pixelSize-(toIndex&7));
- /* The following read the entire pixels and clears the extra: */
- unsigned int destByte = toBuffer[toIndex >> 3] & ~destMask;
- unsigned int sourceByte = fromBuffer[fromIndex >> 3];
-
- /* Don't rely on << or >> supporting '0' here, just in case: */
- fromIndex &= 7;
- if (littleendian)
- {
- if (fromIndex > 0) sourceByte >>= fromIndex;
- if ((toIndex & 7) > 0) sourceByte <<= toIndex & 7;
- }
-
- else
- {
- if (fromIndex > 0) sourceByte <<= fromIndex;
- if ((toIndex & 7) > 0) sourceByte >>= toIndex & 7;
- }
-
- toBuffer[toIndex >> 3] = (png_byte)(destByte | (sourceByte & destMask));
- }
- else /* One or more bytes */
- memmove(toBuffer+(toIndex>>3), fromBuffer+(fromIndex>>3), pixelSize>>3);
-}
-
-#ifdef PNG_READ_SUPPORTED
-/* Copy a complete row of pixels, taking into account potential partial
- * bytes at the end.
- */
-static void
-row_copy(png_bytep toBuffer, png_const_bytep fromBuffer, unsigned int bitWidth,
- int littleendian)
-{
- memcpy(toBuffer, fromBuffer, bitWidth >> 3);
-
- if ((bitWidth & 7) != 0)
- {
- unsigned int mask;
-
- toBuffer += bitWidth >> 3;
- fromBuffer += bitWidth >> 3;
- if (littleendian)
- mask = 0xff << (bitWidth & 7);
- else
- mask = 0xff >> (bitWidth & 7);
- *toBuffer = (png_byte)((*toBuffer & mask) | (*fromBuffer & ~mask));
- }
-}
-
-/* Compare pixels - they are assumed to start at the first byte in the
- * given buffers.
- */
-static int
-pixel_cmp(png_const_bytep pa, png_const_bytep pb, png_uint_32 bit_width)
-{
-#if PNG_LIBPNG_VER < 10506
- if (memcmp(pa, pb, bit_width>>3) == 0)
- {
- png_uint_32 p;
-
- if ((bit_width & 7) == 0) return 0;
-
- /* Ok, any differences? */
- p = pa[bit_width >> 3];
- p ^= pb[bit_width >> 3];
-
- if (p == 0) return 0;
-
- /* There are, but they may not be significant, remove the bits
- * after the end (the low order bits in PNG.)
- */
- bit_width &= 7;
- p >>= 8-bit_width;
-
- if (p == 0) return 0;
- }
-#else
- /* From libpng-1.5.6 the overwrite should be fixed, so compare the trailing
- * bits too:
- */
- if (memcmp(pa, pb, (bit_width+7)>>3) == 0)
- return 0;
-#endif
-
- /* Return the index of the changed byte. */
- {
- png_uint_32 where = 0;
-
- while (pa[where] == pb[where]) ++where;
- return 1+where;
- }
-}
-#endif /* PNG_READ_SUPPORTED */
-
-/*************************** BASIC PNG FILE WRITING ***************************/
-/* A png_store takes data from the sequential writer or provides data
- * to the sequential reader. It can also store the result of a PNG
- * write for later retrieval.
- */
-#define STORE_BUFFER_SIZE 500 /* arbitrary */
-typedef struct png_store_buffer
-{
- struct png_store_buffer* prev; /* NOTE: stored in reverse order */
- png_byte buffer[STORE_BUFFER_SIZE];
-} png_store_buffer;
-
-#define FILE_NAME_SIZE 64
-
-typedef struct store_palette_entry /* record of a single palette entry */
-{
- png_byte red;
- png_byte green;
- png_byte blue;
- png_byte alpha;
-} store_palette_entry, store_palette[256];
-
-typedef struct png_store_file
-{
- struct png_store_file* next; /* as many as you like... */
- char name[FILE_NAME_SIZE];
- unsigned int IDAT_bits; /* Number of bits in IDAT size */
- png_uint_32 IDAT_size; /* Total size of IDAT data */
- png_uint_32 id; /* must be correct (see FILEID) */
- size_t datacount; /* In this (the last) buffer */
- png_store_buffer data; /* Last buffer in file */
- int npalette; /* Number of entries in palette */
- store_palette_entry* palette; /* May be NULL */
-} png_store_file;
-
-/* The following is a pool of memory allocated by a single libpng read or write
- * operation.
- */
-typedef struct store_pool
-{
- struct png_store *store; /* Back pointer */
- struct store_memory *list; /* List of allocated memory */
- png_byte mark[4]; /* Before and after data */
-
- /* Statistics for this run. */
- png_alloc_size_t max; /* Maximum single allocation */
- png_alloc_size_t current; /* Current allocation */
- png_alloc_size_t limit; /* Highest current allocation */
- png_alloc_size_t total; /* Total allocation */
-
- /* Overall statistics (retained across successive runs). */
- png_alloc_size_t max_max;
- png_alloc_size_t max_limit;
- png_alloc_size_t max_total;
-} store_pool;
-
-typedef struct png_store
-{
- /* For cexcept.h exception handling - simply store one of these;
- * the context is a self pointer but it may point to a different
- * png_store (in fact it never does in this program.)
- */
- struct exception_context
- exception_context;
-
- unsigned int verbose :1;
- unsigned int treat_warnings_as_errors :1;
- unsigned int expect_error :1;
- unsigned int expect_warning :1;
- unsigned int saw_warning :1;
- unsigned int speed :1;
- unsigned int progressive :1; /* use progressive read */
- unsigned int validated :1; /* used as a temporary flag */
- int nerrors;
- int nwarnings;
- int noptions; /* number of options below: */
- struct {
- unsigned char option; /* option number, 0..30 */
- unsigned char setting; /* setting (unset,invalid,on,off) */
- } options[16];
- char test[128]; /* Name of test */
- char error[256];
-
- /* Share fields */
- png_uint_32 chunklen; /* Length of chunk+overhead (chunkpos >= 8) */
- png_uint_32 chunktype;/* Type of chunk (valid if chunkpos >= 4) */
- png_uint_32 chunkpos; /* Position in chunk */
- png_uint_32 IDAT_size;/* Accumulated IDAT size in .new */
- unsigned int IDAT_bits;/* Cache of the file store value */
-
- /* Read fields */
- png_structp pread; /* Used to read a saved file */
- png_infop piread;
- png_store_file* current; /* Set when reading */
- png_store_buffer* next; /* Set when reading */
- size_t readpos; /* Position in *next */
- png_byte* image; /* Buffer for reading interlaced images */
- size_t cb_image; /* Size of this buffer */
- size_t cb_row; /* Row size of the image(s) */
- uLong IDAT_crc;
- png_uint_32 IDAT_len; /* Used when re-chunking IDAT chunks */
- png_uint_32 IDAT_pos; /* Used when re-chunking IDAT chunks */
- png_uint_32 image_h; /* Number of rows in a single image */
- store_pool read_memory_pool;
-
- /* Write fields */
- png_store_file* saved;
- png_structp pwrite; /* Used when writing a new file */
- png_infop piwrite;
- size_t writepos; /* Position in .new */
- char wname[FILE_NAME_SIZE];
- png_store_buffer new; /* The end of the new PNG file being written. */
- store_pool write_memory_pool;
- store_palette_entry* palette;
- int npalette;
-} png_store;
-
-/* Initialization and cleanup */
-static void
-store_pool_mark(png_bytep mark)
-{
- static png_uint_32 store_seed[2] = { 0x12345678, 1};
-
- make_four_random_bytes(store_seed, mark);
-}
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
-/* Use this for random 32 bit values; this function makes sure the result is
- * non-zero.
- */
-static png_uint_32
-random_32(void)
-{
-
- for (;;)
- {
- png_byte mark[4];
- png_uint_32 result;
-
- store_pool_mark(mark);
- result = png_get_uint_32(mark);
-
- if (result != 0)
- return result;
- }
-}
-#endif /* PNG_READ_SUPPORTED */
-
-static void
-store_pool_init(png_store *ps, store_pool *pool)
-{
- memset(pool, 0, sizeof *pool);
-
- pool->store = ps;
- pool->list = NULL;
- pool->max = pool->current = pool->limit = pool->total = 0;
- pool->max_max = pool->max_limit = pool->max_total = 0;
- store_pool_mark(pool->mark);
-}
-
-static void
-store_init(png_store* ps)
-{
- memset(ps, 0, sizeof *ps);
- init_exception_context(&ps->exception_context);
- store_pool_init(ps, &ps->read_memory_pool);
- store_pool_init(ps, &ps->write_memory_pool);
- ps->verbose = 0;
- ps->treat_warnings_as_errors = 0;
- ps->expect_error = 0;
- ps->expect_warning = 0;
- ps->saw_warning = 0;
- ps->speed = 0;
- ps->progressive = 0;
- ps->validated = 0;
- ps->nerrors = ps->nwarnings = 0;
- ps->pread = NULL;
- ps->piread = NULL;
- ps->saved = ps->current = NULL;
- ps->next = NULL;
- ps->readpos = 0;
- ps->image = NULL;
- ps->cb_image = 0;
- ps->cb_row = 0;
- ps->image_h = 0;
- ps->pwrite = NULL;
- ps->piwrite = NULL;
- ps->writepos = 0;
- ps->chunkpos = 8;
- ps->chunktype = 0;
- ps->chunklen = 16;
- ps->IDAT_size = 0;
- ps->IDAT_bits = 0;
- ps->new.prev = NULL;
- ps->palette = NULL;
- ps->npalette = 0;
- ps->noptions = 0;
-}
-
-static void
-store_freebuffer(png_store_buffer* psb)
-{
- if (psb->prev)
- {
- store_freebuffer(psb->prev);
- free(psb->prev);
- psb->prev = NULL;
- }
-}
-
-static void
-store_freenew(png_store *ps)
-{
- store_freebuffer(&ps->new);
- ps->writepos = 0;
- ps->chunkpos = 8;
- ps->chunktype = 0;
- ps->chunklen = 16;
- ps->IDAT_size = 0;
- ps->IDAT_bits = 0;
- if (ps->palette != NULL)
- {
- free(ps->palette);
- ps->palette = NULL;
- ps->npalette = 0;
- }
-}
-
-static void
-store_storenew(png_store *ps)
-{
- png_store_buffer *pb;
-
- pb = voidcast(png_store_buffer*, malloc(sizeof *pb));
-
- if (pb == NULL)
- png_error(ps->pwrite, "store new: OOM");
-
- *pb = ps->new;
- ps->new.prev = pb;
- ps->writepos = 0;
-}
-
-static void
-store_freefile(png_store_file **ppf)
-{
- if (*ppf != NULL)
- {
- store_freefile(&(*ppf)->next);
-
- store_freebuffer(&(*ppf)->data);
- (*ppf)->datacount = 0;
- if ((*ppf)->palette != NULL)
- {
- free((*ppf)->palette);
- (*ppf)->palette = NULL;
- (*ppf)->npalette = 0;
- }
- free(*ppf);
- *ppf = NULL;
- }
-}
-
-static unsigned int
-bits_of(png_uint_32 num)
-{
- /* Return the number of bits in 'num' */
- unsigned int b = 0;
-
- if (num & 0xffff0000U) b += 16U, num >>= 16;
- if (num & 0xff00U) b += 8U, num >>= 8;
- if (num & 0xf0U) b += 4U, num >>= 4;
- if (num & 0xcU) b += 2U, num >>= 2;
- if (num & 0x2U) ++b, num >>= 1;
- if (num) ++b;
-
- return b; /* 0..32 */
-}
-
-/* Main interface to file storage, after writing a new PNG file (see the API
- * below) call store_storefile to store the result with the given name and id.
- */
-static void
-store_storefile(png_store *ps, png_uint_32 id)
-{
- png_store_file *pf;
-
- if (ps->chunkpos != 0U || ps->chunktype != 0U || ps->chunklen != 0U ||
- ps->IDAT_size == 0)
- png_error(ps->pwrite, "storefile: incomplete write");
-
- pf = voidcast(png_store_file*, malloc(sizeof *pf));
- if (pf == NULL)
- png_error(ps->pwrite, "storefile: OOM");
- safecat(pf->name, sizeof pf->name, 0, ps->wname);
- pf->id = id;
- pf->data = ps->new;
- pf->datacount = ps->writepos;
- pf->IDAT_size = ps->IDAT_size;
- pf->IDAT_bits = bits_of(ps->IDAT_size);
- /* Because the IDAT always has zlib header stuff this must be true: */
- if (pf->IDAT_bits == 0U)
- png_error(ps->pwrite, "storefile: 0 sized IDAT");
- ps->new.prev = NULL;
- ps->writepos = 0;
- ps->chunkpos = 8;
- ps->chunktype = 0;
- ps->chunklen = 16;
- ps->IDAT_size = 0;
- pf->palette = ps->palette;
- pf->npalette = ps->npalette;
- ps->palette = 0;
- ps->npalette = 0;
-
- /* And save it. */
- pf->next = ps->saved;
- ps->saved = pf;
-}
-
-/* Generate an error message (in the given buffer) */
-static size_t
-store_message(png_store *ps, png_const_structp pp, char *buffer, size_t bufsize,
- size_t pos, const char *msg)
-{
- if (pp != NULL && pp == ps->pread)
- {
- /* Reading a file */
- pos = safecat(buffer, bufsize, pos, "read: ");
-
- if (ps->current != NULL)
- {
- pos = safecat(buffer, bufsize, pos, ps->current->name);
- pos = safecat(buffer, bufsize, pos, sep);
- }
- }
-
- else if (pp != NULL && pp == ps->pwrite)
- {
- /* Writing a file */
- pos = safecat(buffer, bufsize, pos, "write: ");
- pos = safecat(buffer, bufsize, pos, ps->wname);
- pos = safecat(buffer, bufsize, pos, sep);
- }
-
- else
- {
- /* Neither reading nor writing (or a memory error in struct delete) */
- pos = safecat(buffer, bufsize, pos, "pngvalid: ");
- }
-
- if (ps->test[0] != 0)
- {
- pos = safecat(buffer, bufsize, pos, ps->test);
- pos = safecat(buffer, bufsize, pos, sep);
- }
- pos = safecat(buffer, bufsize, pos, msg);
- return pos;
-}
-
-/* Verbose output to the error stream: */
-static void
-store_verbose(png_store *ps, png_const_structp pp, png_const_charp prefix,
- png_const_charp message)
-{
- char buffer[512];
-
- if (prefix)
- fputs(prefix, stderr);
-
- (void)store_message(ps, pp, buffer, sizeof buffer, 0, message);
- fputs(buffer, stderr);
- fputc('\n', stderr);
-}
-
-/* Log an error or warning - the relevant count is always incremented. */
-static void
-store_log(png_store* ps, png_const_structp pp, png_const_charp message,
- int is_error)
-{
- /* The warning is copied to the error buffer if there are no errors and it is
- * the first warning. The error is copied to the error buffer if it is the
- * first error (overwriting any prior warnings).
- */
- if (is_error ? (ps->nerrors)++ == 0 :
- (ps->nwarnings)++ == 0 && ps->nerrors == 0)
- store_message(ps, pp, ps->error, sizeof ps->error, 0, message);
-
- if (ps->verbose)
- store_verbose(ps, pp, is_error ? "error: " : "warning: ", message);
-}
-
-#ifdef PNG_READ_SUPPORTED
-/* Internal error function, called with a png_store but no libpng stuff. */
-static void
-internal_error(png_store *ps, png_const_charp message)
-{
- store_log(ps, NULL, message, 1 /* error */);
-
- /* And finally throw an exception. */
- {
- struct exception_context *the_exception_context = &ps->exception_context;
- Throw ps;
- }
-}
-#endif /* PNG_READ_SUPPORTED */
-
-/* Functions to use as PNG callbacks. */
-static void PNGCBAPI
-store_error(png_structp ppIn, png_const_charp message) /* PNG_NORETURN */
-{
- png_const_structp pp = ppIn;
- png_store *ps = voidcast(png_store*, png_get_error_ptr(pp));
-
- if (!ps->expect_error)
- store_log(ps, pp, message, 1 /* error */);
-
- /* And finally throw an exception. */
- {
- struct exception_context *the_exception_context = &ps->exception_context;
- Throw ps;
- }
-}
-
-static void PNGCBAPI
-store_warning(png_structp ppIn, png_const_charp message)
-{
- png_const_structp pp = ppIn;
- png_store *ps = voidcast(png_store*, png_get_error_ptr(pp));
-
- if (!ps->expect_warning)
- store_log(ps, pp, message, 0 /* warning */);
- else
- ps->saw_warning = 1;
-}
-
-/* These somewhat odd functions are used when reading an image to ensure that
- * the buffer is big enough, the png_structp is for errors.
- */
-/* Return a single row from the correct image. */
-static png_bytep
-store_image_row(const png_store* ps, png_const_structp pp, int nImage,
- png_uint_32 y)
-{
- size_t coffset = (nImage * ps->image_h + y) * (ps->cb_row + 5) + 2;
-
- if (ps->image == NULL)
- png_error(pp, "no allocated image");
-
- if (coffset + ps->cb_row + 3 > ps->cb_image)
- png_error(pp, "image too small");
-
- return ps->image + coffset;
-}
-
-static void
-store_image_free(png_store *ps, png_const_structp pp)
-{
- if (ps->image != NULL)
- {
- png_bytep image = ps->image;
-
- if (image[-1] != 0xed || image[ps->cb_image] != 0xfe)
- {
- if (pp != NULL)
- png_error(pp, "png_store image overwrite (1)");
- else
- store_log(ps, NULL, "png_store image overwrite (2)", 1);
- }
-
- ps->image = NULL;
- ps->cb_image = 0;
- --image;
- free(image);
- }
-}
-
-static void
-store_ensure_image(png_store *ps, png_const_structp pp, int nImages,
- size_t cbRow, png_uint_32 cRows)
-{
- size_t cb = nImages * cRows * (cbRow + 5);
-
- if (ps->cb_image < cb)
- {
- png_bytep image;
-
- store_image_free(ps, pp);
-
- /* The buffer is deliberately mis-aligned. */
- image = voidcast(png_bytep, malloc(cb+2));
- if (image == NULL)
- {
- /* Called from the startup - ignore the error for the moment. */
- if (pp == NULL)
- return;
-
- png_error(pp, "OOM allocating image buffer");
- }
-
- /* These magic tags are used to detect overwrites above. */
- ++image;
- image[-1] = 0xed;
- image[cb] = 0xfe;
-
- ps->image = image;
- ps->cb_image = cb;
- }
-
- /* We have an adequate sized image; lay out the rows. There are 2 bytes at
- * the start and three at the end of each (this ensures that the row
- * alignment starts out odd - 2+1 and changes for larger images on each row.)
- */
- ps->cb_row = cbRow;
- ps->image_h = cRows;
-
- /* For error checking, the whole buffer is set to 10110010 (0xb2 - 178).
- * This deliberately doesn't match the bits in the size test image which are
- * outside the image; these are set to 0xff (all 1). To make the row
- * comparison work in the 'size' test case the size rows are pre-initialized
- * to the same value prior to calling 'standard_row'.
- */
- memset(ps->image, 178, cb);
-
- /* Then put in the marks. */
- while (--nImages >= 0)
- {
- png_uint_32 y;
-
- for (y=0; y<cRows; ++y)
- {
- png_bytep row = store_image_row(ps, pp, nImages, y);
-
- /* The markers: */
- row[-2] = 190;
- row[-1] = 239;
- row[cbRow] = 222;
- row[cbRow+1] = 173;
- row[cbRow+2] = 17;
- }
- }
-}
-
-#ifdef PNG_READ_SUPPORTED
-static void
-store_image_check(const png_store* ps, png_const_structp pp, int iImage)
-{
- png_const_bytep image = ps->image;
-
- if (image[-1] != 0xed || image[ps->cb_image] != 0xfe)
- png_error(pp, "image overwrite");
- else
- {
- size_t cbRow = ps->cb_row;
- png_uint_32 rows = ps->image_h;
-
- image += iImage * (cbRow+5) * ps->image_h;
-
- image += 2; /* skip image first row markers */
-
- for (; rows > 0; --rows)
- {
- if (image[-2] != 190 || image[-1] != 239)
- png_error(pp, "row start overwritten");
-
- if (image[cbRow] != 222 || image[cbRow+1] != 173 ||
- image[cbRow+2] != 17)
- png_error(pp, "row end overwritten");
-
- image += cbRow+5;
- }
- }
-}
-#endif /* PNG_READ_SUPPORTED */
-
-static int
-valid_chunktype(png_uint_32 chunktype)
-{
- /* Each byte in the chunk type must be in one of the ranges 65..90, 97..122
- * (both inclusive), so:
- */
- unsigned int i;
-
- for (i=0; i<4; ++i)
- {
- unsigned int c = chunktype & 0xffU;
-
- if (!((c >= 65U && c <= 90U) || (c >= 97U && c <= 122U)))
- return 0;
-
- chunktype >>= 8;
- }
-
- return 1; /* It's valid */
-}
-
-static void PNGCBAPI
-store_write(png_structp ppIn, png_bytep pb, size_t st)
-{
- png_const_structp pp = ppIn;
- png_store *ps = voidcast(png_store*, png_get_io_ptr(pp));
- size_t writepos = ps->writepos;
- png_uint_32 chunkpos = ps->chunkpos;
- png_uint_32 chunktype = ps->chunktype;
- png_uint_32 chunklen = ps->chunklen;
-
- if (ps->pwrite != pp)
- png_error(pp, "store state damaged");
-
- /* Technically this is legal, but in practice libpng never writes more than
- * the maximum chunk size at once so if it happens something weird has
- * changed inside libpng (probably).
- */
- if (st > 0x7fffffffU)
- png_error(pp, "unexpected write size");
-
- /* Now process the bytes to be written. Do this in units of the space in the
- * output (write) buffer or, at the start 4 bytes for the chunk type and
- * length limited in any case by the amount of data.
- */
- while (st > 0)
- {
- if (writepos >= STORE_BUFFER_SIZE)
- store_storenew(ps), writepos = 0;
-
- if (chunkpos < 4)
- {
- png_byte b = *pb++;
- --st;
- chunklen = (chunklen << 8) + b;
- ps->new.buffer[writepos++] = b;
- ++chunkpos;
- }
-
- else if (chunkpos < 8)
- {
- png_byte b = *pb++;
- --st;
- chunktype = (chunktype << 8) + b;
- ps->new.buffer[writepos++] = b;
-
- if (++chunkpos == 8)
- {
- chunklen &= 0xffffffffU;
- if (chunklen > 0x7fffffffU)
- png_error(pp, "chunk length too great");
-
- chunktype &= 0xffffffffU;
- if (chunktype == CHUNK_IDAT)
- {
- if (chunklen > ~ps->IDAT_size)
- png_error(pp, "pngvalid internal image too large");
-
- ps->IDAT_size += chunklen;
- }
-
- else if (!valid_chunktype(chunktype))
- png_error(pp, "invalid chunk type");
-
- chunklen += 12; /* for header and CRC */
- }
- }
-
- else /* chunkpos >= 8 */
- {
- size_t cb = st;
-
- if (cb > STORE_BUFFER_SIZE - writepos)
- cb = STORE_BUFFER_SIZE - writepos;
-
- if (cb > chunklen - chunkpos/* bytes left in chunk*/)
- cb = (size_t)/*SAFE*/(chunklen - chunkpos);
-
- memcpy(ps->new.buffer + writepos, pb, cb);
- chunkpos += (png_uint_32)/*SAFE*/cb;
- pb += cb;
- writepos += cb;
- st -= cb;
-
- if (chunkpos >= chunklen) /* must be equal */
- chunkpos = chunktype = chunklen = 0;
- }
- } /* while (st > 0) */
-
- ps->writepos = writepos;
- ps->chunkpos = chunkpos;
- ps->chunktype = chunktype;
- ps->chunklen = chunklen;
-}
-
-static void PNGCBAPI
-store_flush(png_structp ppIn)
-{
- UNUSED(ppIn) /*DOES NOTHING*/
-}
-
-#ifdef PNG_READ_SUPPORTED
-static size_t
-store_read_buffer_size(png_store *ps)
-{
- /* Return the bytes available for read in the current buffer. */
- if (ps->next != &ps->current->data)
- return STORE_BUFFER_SIZE;
-
- return ps->current->datacount;
-}
-
-/* Return total bytes available for read. */
-static size_t
-store_read_buffer_avail(png_store *ps)
-{
- if (ps->current != NULL && ps->next != NULL)
- {
- png_store_buffer *next = &ps->current->data;
- size_t cbAvail = ps->current->datacount;
-
- while (next != ps->next && next != NULL)
- {
- next = next->prev;
- cbAvail += STORE_BUFFER_SIZE;
- }
-
- if (next != ps->next)
- png_error(ps->pread, "buffer read error");
-
- if (cbAvail > ps->readpos)
- return cbAvail - ps->readpos;
- }
-
- return 0;
-}
-
-static int
-store_read_buffer_next(png_store *ps)
-{
- png_store_buffer *pbOld = ps->next;
- png_store_buffer *pbNew = &ps->current->data;
- if (pbOld != pbNew)
- {
- while (pbNew != NULL && pbNew->prev != pbOld)
- pbNew = pbNew->prev;
-
- if (pbNew != NULL)
- {
- ps->next = pbNew;
- ps->readpos = 0;
- return 1;
- }
-
- png_error(ps->pread, "buffer lost");
- }
-
- return 0; /* EOF or error */
-}
-
-/* Need separate implementation and callback to allow use of the same code
- * during progressive read, where the io_ptr is set internally by libpng.
- */
-static void
-store_read_imp(png_store *ps, png_bytep pb, size_t st)
-{
- if (ps->current == NULL || ps->next == NULL)
- png_error(ps->pread, "store state damaged");
-
- while (st > 0)
- {
- size_t cbAvail = store_read_buffer_size(ps) - ps->readpos;
-
- if (cbAvail > 0)
- {
- if (cbAvail > st) cbAvail = st;
- memcpy(pb, ps->next->buffer + ps->readpos, cbAvail);
- st -= cbAvail;
- pb += cbAvail;
- ps->readpos += cbAvail;
- }
-
- else if (!store_read_buffer_next(ps))
- png_error(ps->pread, "read beyond end of file");
- }
-}
-
-static size_t
-store_read_chunk(png_store *ps, png_bytep pb, size_t max, size_t min)
-{
- png_uint_32 chunklen = ps->chunklen;
- png_uint_32 chunktype = ps->chunktype;
- png_uint_32 chunkpos = ps->chunkpos;
- size_t st = max;
-
- if (st > 0) do
- {
- if (chunkpos >= chunklen) /* end of last chunk */
- {
- png_byte buffer[8];
-
- /* Read the header of the next chunk: */
- store_read_imp(ps, buffer, 8U);
- chunklen = png_get_uint_32(buffer) + 12U;
- chunktype = png_get_uint_32(buffer+4U);
- chunkpos = 0U; /* Position read so far */
- }
-
- if (chunktype == CHUNK_IDAT)
- {
- png_uint_32 IDAT_pos = ps->IDAT_pos;
- png_uint_32 IDAT_len = ps->IDAT_len;
- png_uint_32 IDAT_size = ps->IDAT_size;
-
- /* The IDAT headers are constructed here; skip the input header. */
- if (chunkpos < 8U)
- chunkpos = 8U;
-
- if (IDAT_pos == IDAT_len)
- {
- png_byte random = random_byte();
-
- /* Make a new IDAT chunk, if IDAT_len is 0 this is the first IDAT,
- * if IDAT_size is 0 this is the end. At present this is set up
- * using a random number so that there is a 25% chance before
- * the start of the first IDAT chunk being 0 length.
- */
- if (IDAT_len == 0U) /* First IDAT */
- {
- switch (random & 3U)
- {
- case 0U: IDAT_len = 12U; break; /* 0 bytes */
- case 1U: IDAT_len = 13U; break; /* 1 byte */
- default: IDAT_len = random_u32();
- IDAT_len %= IDAT_size;
- IDAT_len += 13U; /* 1..IDAT_size bytes */
- break;
- }
- }
-
- else if (IDAT_size == 0U) /* all IDAT data read */
- {
- /* The last (IDAT) chunk should be positioned at the CRC now: */
- if (chunkpos != chunklen-4U)
- png_error(ps->pread, "internal: IDAT size mismatch");
-
- /* The only option here is to add a zero length IDAT, this
- * happens 25% of the time. Because of the check above
- * chunklen-4U-chunkpos must be zero, we just need to skip the
- * CRC now.
- */
- if ((random & 3U) == 0U)
- IDAT_len = 12U; /* Output another 0 length IDAT */
-
- else
- {
- /* End of IDATs, skip the CRC to make the code above load the
- * next chunk header next time round.
- */
- png_byte buffer[4];
-
- store_read_imp(ps, buffer, 4U);
- chunkpos += 4U;
- ps->IDAT_pos = IDAT_pos;
- ps->IDAT_len = IDAT_len;
- ps->IDAT_size = 0U;
- continue; /* Read the next chunk */
- }
- }
-
- else
- {
- /* Middle of IDATs, use 'random' to determine the number of bits
- * to use in the IDAT length.
- */
- IDAT_len = random_u32();
- IDAT_len &= (1U << (1U + random % ps->IDAT_bits)) - 1U;
- if (IDAT_len > IDAT_size)
- IDAT_len = IDAT_size;
- IDAT_len += 12U; /* zero bytes may occur */
- }
-
- IDAT_pos = 0U;
- ps->IDAT_crc = 0x35af061e; /* Ie: crc32(0UL, "IDAT", 4) */
- } /* IDAT_pos == IDAT_len */
-
- if (IDAT_pos < 8U) /* Return the header */ do
- {
- png_uint_32 b;
- unsigned int shift;
-
- if (IDAT_pos < 4U)
- b = IDAT_len - 12U;
-
- else
- b = CHUNK_IDAT;
-
- shift = 3U & IDAT_pos;
- ++IDAT_pos;
-
- if (shift < 3U)
- b >>= 8U*(3U-shift);
-
- *pb++ = 0xffU & b;
- }
- while (--st > 0 && IDAT_pos < 8);
-
- else if (IDAT_pos < IDAT_len - 4U) /* I.e not the CRC */
- {
- if (chunkpos < chunklen-4U)
- {
- uInt avail = (uInt)-1;
-
- if (avail > (IDAT_len-4U) - IDAT_pos)
- avail = (uInt)/*SAFE*/((IDAT_len-4U) - IDAT_pos);
-
- if (avail > st)
- avail = (uInt)/*SAFE*/st;
-
- if (avail > (chunklen-4U) - chunkpos)
- avail = (uInt)/*SAFE*/((chunklen-4U) - chunkpos);
-
- store_read_imp(ps, pb, avail);
- ps->IDAT_crc = crc32(ps->IDAT_crc, pb, avail);
- pb += (size_t)/*SAFE*/avail;
- st -= (size_t)/*SAFE*/avail;
- chunkpos += (png_uint_32)/*SAFE*/avail;
- IDAT_size -= (png_uint_32)/*SAFE*/avail;
- IDAT_pos += (png_uint_32)/*SAFE*/avail;
- }
-
- else /* skip the input CRC */
- {
- png_byte buffer[4];
-
- store_read_imp(ps, buffer, 4U);
- chunkpos += 4U;
- }
- }
-
- else /* IDAT crc */ do
- {
- uLong b = ps->IDAT_crc;
- unsigned int shift = (IDAT_len - IDAT_pos); /* 4..1 */
- ++IDAT_pos;
-
- if (shift > 1U)
- b >>= 8U*(shift-1U);
-
- *pb++ = 0xffU & b;
- }
- while (--st > 0 && IDAT_pos < IDAT_len);
-
- ps->IDAT_pos = IDAT_pos;
- ps->IDAT_len = IDAT_len;
- ps->IDAT_size = IDAT_size;
- }
-
- else /* !IDAT */
- {
- /* If there is still some pending IDAT data after the IDAT chunks have
- * been processed there is a problem:
- */
- if (ps->IDAT_len > 0 && ps->IDAT_size > 0)
- png_error(ps->pread, "internal: missing IDAT data");
-
- if (chunktype == CHUNK_IEND && ps->IDAT_len == 0U)
- png_error(ps->pread, "internal: missing IDAT");
-
- if (chunkpos < 8U) /* Return the header */ do
- {
- png_uint_32 b;
- unsigned int shift;
-
- if (chunkpos < 4U)
- b = chunklen - 12U;
-
- else
- b = chunktype;
-
- shift = 3U & chunkpos;
- ++chunkpos;
-
- if (shift < 3U)
- b >>= 8U*(3U-shift);
-
- *pb++ = 0xffU & b;
- }
- while (--st > 0 && chunkpos < 8);
-
- else /* Return chunk bytes, including the CRC */
- {
- size_t avail = st;
-
- if (avail > chunklen - chunkpos)
- avail = (size_t)/*SAFE*/(chunklen - chunkpos);
-
- store_read_imp(ps, pb, avail);
- pb += avail;
- st -= avail;
- chunkpos += (png_uint_32)/*SAFE*/avail;
-
- /* Check for end of chunk and end-of-file; don't try to read a new
- * chunk header at this point unless instructed to do so by 'min'.
- */
- if (chunkpos >= chunklen && max-st >= min &&
- store_read_buffer_avail(ps) == 0)
- break;
- }
- } /* !IDAT */
- }
- while (st > 0);
-
- ps->chunklen = chunklen;
- ps->chunktype = chunktype;
- ps->chunkpos = chunkpos;
-
- return st; /* space left */
-}
-
-static void PNGCBAPI
-store_read(png_structp ppIn, png_bytep pb, size_t st)
-{
- png_const_structp pp = ppIn;
- png_store *ps = voidcast(png_store*, png_get_io_ptr(pp));
-
- if (ps == NULL || ps->pread != pp)
- png_error(pp, "bad store read call");
-
- store_read_chunk(ps, pb, st, st);
-}
-
-static void
-store_progressive_read(png_store *ps, png_structp pp, png_infop pi)
-{
- if (ps->pread != pp || ps->current == NULL || ps->next == NULL)
- png_error(pp, "store state damaged (progressive)");
-
- /* This is another Horowitz and Hill random noise generator. In this case
- * the aim is to stress the progressive reader with truly horrible variable
- * buffer sizes in the range 1..500, so a sequence of 9 bit random numbers
- * is generated. We could probably just count from 1 to 32767 and get as
- * good a result.
- */
- while (store_read_buffer_avail(ps) > 0)
- {
- static png_uint_32 noise = 2;
- size_t cb;
- png_byte buffer[512];
-
- /* Generate 15 more bits of stuff: */
- noise = (noise << 9) | ((noise ^ (noise >> (9-5))) & 0x1ff);
- cb = noise & 0x1ff;
- cb -= store_read_chunk(ps, buffer, cb, 1);
- png_process_data(pp, pi, buffer, cb);
- }
-}
-#endif /* PNG_READ_SUPPORTED */
-
-/* The caller must fill this in: */
-static store_palette_entry *
-store_write_palette(png_store *ps, int npalette)
-{
- if (ps->pwrite == NULL)
- store_log(ps, NULL, "attempt to write palette without write stream", 1);
-
- if (ps->palette != NULL)
- png_error(ps->pwrite, "multiple store_write_palette calls");
-
- /* This function can only return NULL if called with '0'! */
- if (npalette > 0)
- {
- ps->palette = voidcast(store_palette_entry*, malloc(npalette *
- sizeof *ps->palette));
-
- if (ps->palette == NULL)
- png_error(ps->pwrite, "store new palette: OOM");
-
- ps->npalette = npalette;
- }
-
- return ps->palette;
-}
-
-#ifdef PNG_READ_SUPPORTED
-static store_palette_entry *
-store_current_palette(png_store *ps, int *npalette)
-{
- /* This is an internal error (the call has been made outside a read
- * operation.)
- */
- if (ps->current == NULL)
- {
- store_log(ps, ps->pread, "no current stream for palette", 1);
- return NULL;
- }
-
- /* The result may be null if there is no palette. */
- *npalette = ps->current->npalette;
- return ps->current->palette;
-}
-#endif /* PNG_READ_SUPPORTED */
-
-/***************************** MEMORY MANAGEMENT*** ***************************/
-#ifdef PNG_USER_MEM_SUPPORTED
-/* A store_memory is simply the header for an allocated block of memory. The
- * pointer returned to libpng is just after the end of the header block, the
- * allocated memory is followed by a second copy of the 'mark'.
- */
-typedef struct store_memory
-{
- store_pool *pool; /* Originating pool */
- struct store_memory *next; /* Singly linked list */
- png_alloc_size_t size; /* Size of memory allocated */
- png_byte mark[4]; /* ID marker */
-} store_memory;
-
-/* Handle a fatal error in memory allocation. This calls png_error if the
- * libpng struct is non-NULL, else it outputs a message and returns. This means
- * that a memory problem while libpng is running will abort (png_error) the
- * handling of particular file while one in cleanup (after the destroy of the
- * struct has returned) will simply keep going and free (or attempt to free)
- * all the memory.
- */
-static void
-store_pool_error(png_store *ps, png_const_structp pp, const char *msg)
-{
- if (pp != NULL)
- png_error(pp, msg);
-
- /* Else we have to do it ourselves. png_error eventually calls store_log,
- * above. store_log accepts a NULL png_structp - it just changes what gets
- * output by store_message.
- */
- store_log(ps, pp, msg, 1 /* error */);
-}
-
-static void
-store_memory_free(png_const_structp pp, store_pool *pool, store_memory *memory)
-{
- /* Note that pp may be NULL (see store_pool_delete below), the caller has
- * found 'memory' in pool->list *and* unlinked this entry, so this is a valid
- * pointer (for sure), but the contents may have been trashed.
- */
- if (memory->pool != pool)
- store_pool_error(pool->store, pp, "memory corrupted (pool)");
-
- else if (memcmp(memory->mark, pool->mark, sizeof memory->mark) != 0)
- store_pool_error(pool->store, pp, "memory corrupted (start)");
-
- /* It should be safe to read the size field now. */
- else
- {
- png_alloc_size_t cb = memory->size;
-
- if (cb > pool->max)
- store_pool_error(pool->store, pp, "memory corrupted (size)");
-
- else if (memcmp((png_bytep)(memory+1)+cb, pool->mark, sizeof pool->mark)
- != 0)
- store_pool_error(pool->store, pp, "memory corrupted (end)");
-
- /* Finally give the library a chance to find problems too: */
- else
- {
- pool->current -= cb;
- free(memory);
- }
- }
-}
-
-static void
-store_pool_delete(png_store *ps, store_pool *pool)
-{
- if (pool->list != NULL)
- {
- fprintf(stderr, "%s: %s %s: memory lost (list follows):\n", ps->test,
- pool == &ps->read_memory_pool ? "read" : "write",
- pool == &ps->read_memory_pool ? (ps->current != NULL ?
- ps->current->name : "unknown file") : ps->wname);
- ++ps->nerrors;
-
- do
- {
- store_memory *next = pool->list;
- pool->list = next->next;
- next->next = NULL;
-
- fprintf(stderr, "\t%lu bytes @ %p\n",
- (unsigned long)next->size, (const void*)(next+1));
- /* The NULL means this will always return, even if the memory is
- * corrupted.
- */
- store_memory_free(NULL, pool, next);
- }
- while (pool->list != NULL);
- }
-
- /* And reset the other fields too for the next time. */
- if (pool->max > pool->max_max) pool->max_max = pool->max;
- pool->max = 0;
- if (pool->current != 0) /* unexpected internal error */
- fprintf(stderr, "%s: %s %s: memory counter mismatch (internal error)\n",
- ps->test, pool == &ps->read_memory_pool ? "read" : "write",
- pool == &ps->read_memory_pool ? (ps->current != NULL ?
- ps->current->name : "unknown file") : ps->wname);
- pool->current = 0;
-
- if (pool->limit > pool->max_limit)
- pool->max_limit = pool->limit;
-
- pool->limit = 0;
-
- if (pool->total > pool->max_total)
- pool->max_total = pool->total;
-
- pool->total = 0;
-
- /* Get a new mark too. */
- store_pool_mark(pool->mark);
-}
-
-/* The memory callbacks: */
-static png_voidp PNGCBAPI
-store_malloc(png_structp ppIn, png_alloc_size_t cb)
-{
- png_const_structp pp = ppIn;
- store_pool *pool = voidcast(store_pool*, png_get_mem_ptr(pp));
- store_memory *new = voidcast(store_memory*, malloc(cb + (sizeof *new) +
- (sizeof pool->mark)));
-
- if (new != NULL)
- {
- if (cb > pool->max)
- pool->max = cb;
-
- pool->current += cb;
-
- if (pool->current > pool->limit)
- pool->limit = pool->current;
-
- pool->total += cb;
-
- new->size = cb;
- memcpy(new->mark, pool->mark, sizeof new->mark);
- memcpy((png_byte*)(new+1) + cb, pool->mark, sizeof pool->mark);
- new->pool = pool;
- new->next = pool->list;
- pool->list = new;
- ++new;
- }
-
- else
- {
- /* NOTE: the PNG user malloc function cannot use the png_ptr it is passed
- * other than to retrieve the allocation pointer! libpng calls the
- * store_malloc callback in two basic cases:
- *
- * 1) From png_malloc; png_malloc will do a png_error itself if NULL is
- * returned.
- * 2) From png_struct or png_info structure creation; png_malloc is
- * to return so cleanup can be performed.
- *
- * To handle this store_malloc can log a message, but can't do anything
- * else.
- */
- store_log(pool->store, pp, "out of memory", 1 /* is_error */);
- }
-
- return new;
-}
-
-static void PNGCBAPI
-store_free(png_structp ppIn, png_voidp memory)
-{
- png_const_structp pp = ppIn;
- store_pool *pool = voidcast(store_pool*, png_get_mem_ptr(pp));
- store_memory *this = voidcast(store_memory*, memory), **test;
-
- /* Because libpng calls store_free with a dummy png_struct when deleting
- * png_struct or png_info via png_destroy_struct_2 it is necessary to check
- * the passed in png_structp to ensure it is valid, and not pass it to
- * png_error if it is not.
- */
- if (pp != pool->store->pread && pp != pool->store->pwrite)
- pp = NULL;
-
- /* First check that this 'memory' really is valid memory - it must be in the
- * pool list. If it is, use the shared memory_free function to free it.
- */
- --this;
- for (test = &pool->list; *test != this; test = &(*test)->next)
- {
- if (*test == NULL)
- {
- store_pool_error(pool->store, pp, "bad pointer to free");
- return;
- }
- }
-
- /* Unlink this entry, *test == this. */
- *test = this->next;
- this->next = NULL;
- store_memory_free(pp, pool, this);
-}
-#endif /* PNG_USER_MEM_SUPPORTED */
-
-/* Setup functions. */
-/* Cleanup when aborting a write or after storing the new file. */
-static void
-store_write_reset(png_store *ps)
-{
- if (ps->pwrite != NULL)
- {
- anon_context(ps);
-
- Try
- png_destroy_write_struct(&ps->pwrite, &ps->piwrite);
-
- Catch_anonymous
- {
- /* memory corruption: continue. */
- }
-
- ps->pwrite = NULL;
- ps->piwrite = NULL;
- }
-
- /* And make sure that all the memory has been freed - this will output
- * spurious errors in the case of memory corruption above, but this is safe.
- */
-# ifdef PNG_USER_MEM_SUPPORTED
- store_pool_delete(ps, &ps->write_memory_pool);
-# endif
-
- store_freenew(ps);
-}
-
-/* The following is the main write function, it returns a png_struct and,
- * optionally, a png_info suitable for writiing a new PNG file. Use
- * store_storefile above to record this file after it has been written. The
- * returned libpng structures as destroyed by store_write_reset above.
- */
-static png_structp
-set_store_for_write(png_store *ps, png_infopp ppi, const char *name)
-{
- anon_context(ps);
-
- Try
- {
- if (ps->pwrite != NULL)
- png_error(ps->pwrite, "write store already in use");
-
- store_write_reset(ps);
- safecat(ps->wname, sizeof ps->wname, 0, name);
-
- /* Don't do the slow memory checks if doing a speed test, also if user
- * memory is not supported we can't do it anyway.
- */
-# ifdef PNG_USER_MEM_SUPPORTED
- if (!ps->speed)
- ps->pwrite = png_create_write_struct_2(PNG_LIBPNG_VER_STRING,
- ps, store_error, store_warning, &ps->write_memory_pool,
- store_malloc, store_free);
-
- else
-# endif
- ps->pwrite = png_create_write_struct(PNG_LIBPNG_VER_STRING,
- ps, store_error, store_warning);
-
- png_set_write_fn(ps->pwrite, ps, store_write, store_flush);
-
-# ifdef PNG_SET_OPTION_SUPPORTED
- {
- int opt;
- for (opt=0; opt<ps->noptions; ++opt)
- if (png_set_option(ps->pwrite, ps->options[opt].option,
- ps->options[opt].setting) == PNG_OPTION_INVALID)
- png_error(ps->pwrite, "png option invalid");
- }
-# endif
-
- if (ppi != NULL)
- *ppi = ps->piwrite = png_create_info_struct(ps->pwrite);
- }
-
- Catch_anonymous
- return NULL;
-
- return ps->pwrite;
-}
-
-/* Cleanup when finished reading (either due to error or in the success case).
- * This routine exists even when there is no read support to make the code
- * tidier (avoid a mass of ifdefs) and so easier to maintain.
- */
-static void
-store_read_reset(png_store *ps)
-{
-# ifdef PNG_READ_SUPPORTED
- if (ps->pread != NULL)
- {
- anon_context(ps);
-
- Try
- png_destroy_read_struct(&ps->pread, &ps->piread, NULL);
-
- Catch_anonymous
- {
- /* error already output: continue */
- }
-
- ps->pread = NULL;
- ps->piread = NULL;
- }
-# endif
-
-# ifdef PNG_USER_MEM_SUPPORTED
- /* Always do this to be safe. */
- store_pool_delete(ps, &ps->read_memory_pool);
-# endif
-
- ps->current = NULL;
- ps->next = NULL;
- ps->readpos = 0;
- ps->validated = 0;
-
- ps->chunkpos = 8;
- ps->chunktype = 0;
- ps->chunklen = 16;
- ps->IDAT_size = 0;
-}
-
-#ifdef PNG_READ_SUPPORTED
-static void
-store_read_set(png_store *ps, png_uint_32 id)
-{
- png_store_file *pf = ps->saved;
-
- while (pf != NULL)
- {
- if (pf->id == id)
- {
- ps->current = pf;
- ps->next = NULL;
- ps->IDAT_size = pf->IDAT_size;
- ps->IDAT_bits = pf->IDAT_bits; /* just a cache */
- ps->IDAT_len = 0;
- ps->IDAT_pos = 0;
- ps->IDAT_crc = 0UL;
- store_read_buffer_next(ps);
- return;
- }
-
- pf = pf->next;
- }
-
- {
- size_t pos;
- char msg[FILE_NAME_SIZE+64];
-
- pos = standard_name_from_id(msg, sizeof msg, 0, id);
- pos = safecat(msg, sizeof msg, pos, ": file not found");
- png_error(ps->pread, msg);
- }
-}
-
-/* The main interface for reading a saved file - pass the id number of the file
- * to retrieve. Ids must be unique or the earlier file will be hidden. The API
- * returns a png_struct and, optionally, a png_info. Both of these will be
- * destroyed by store_read_reset above.
- */
-static png_structp
-set_store_for_read(png_store *ps, png_infopp ppi, png_uint_32 id,
- const char *name)
-{
- /* Set the name for png_error */
- safecat(ps->test, sizeof ps->test, 0, name);
-
- if (ps->pread != NULL)
- png_error(ps->pread, "read store already in use");
-
- store_read_reset(ps);
-
- /* Both the create APIs can return NULL if used in their default mode
- * (because there is no other way of handling an error because the jmp_buf
- * by default is stored in png_struct and that has not been allocated!)
- * However, given that store_error works correctly in these circumstances
- * we don't ever expect NULL in this program.
- */
-# ifdef PNG_USER_MEM_SUPPORTED
- if (!ps->speed)
- ps->pread = png_create_read_struct_2(PNG_LIBPNG_VER_STRING, ps,
- store_error, store_warning, &ps->read_memory_pool, store_malloc,
- store_free);
-
- else
-# endif
- ps->pread = png_create_read_struct(PNG_LIBPNG_VER_STRING, ps, store_error,
- store_warning);
-
- if (ps->pread == NULL)
- {
- struct exception_context *the_exception_context = &ps->exception_context;
-
- store_log(ps, NULL, "png_create_read_struct returned NULL (unexpected)",
- 1 /*error*/);
-
- Throw ps;
- }
-
-# ifdef PNG_SET_OPTION_SUPPORTED
- {
- int opt;
- for (opt=0; opt<ps->noptions; ++opt)
- if (png_set_option(ps->pread, ps->options[opt].option,
- ps->options[opt].setting) == PNG_OPTION_INVALID)
- png_error(ps->pread, "png option invalid");
- }
-# endif
-
- store_read_set(ps, id);
-
- if (ppi != NULL)
- *ppi = ps->piread = png_create_info_struct(ps->pread);
-
- return ps->pread;
-}
-#endif /* PNG_READ_SUPPORTED */
-
-/* The overall cleanup of a store simply calls the above then removes all the
- * saved files. This does not delete the store itself.
- */
-static void
-store_delete(png_store *ps)
-{
- store_write_reset(ps);
- store_read_reset(ps);
- store_freefile(&ps->saved);
- store_image_free(ps, NULL);
-}
-
-/*********************** PNG FILE MODIFICATION ON READ ************************/
-/* Files may be modified on read. The following structure contains a complete
- * png_store together with extra members to handle modification and a special
- * read callback for libpng. To use this the 'modifications' field must be set
- * to a list of png_modification structures that actually perform the
- * modification, otherwise a png_modifier is functionally equivalent to a
- * png_store. There is a special read function, set_modifier_for_read, which
- * replaces set_store_for_read.
- */
-typedef enum modifier_state
-{
- modifier_start, /* Initial value */
- modifier_signature, /* Have a signature */
- modifier_IHDR /* Have an IHDR */
-} modifier_state;
-
-typedef struct CIE_color
-{
- /* A single CIE tristimulus value, representing the unique response of a
- * standard observer to a variety of light spectra. The observer recognizes
- * all spectra that produce this response as the same color, therefore this
- * is effectively a description of a color.
- */
- double X, Y, Z;
-} CIE_color;
-
-typedef struct color_encoding
-{
- /* A description of an (R,G,B) encoding of color (as defined above); this
- * includes the actual colors of the (R,G,B) triples (1,0,0), (0,1,0) and
- * (0,0,1) plus an encoding value that is used to encode the linear
- * components R, G and B to give the actual values R^gamma, G^gamma and
- * B^gamma that are stored.
- */
- double gamma; /* Encoding (file) gamma of space */
- CIE_color red, green, blue; /* End points */
-} color_encoding;
-
-#ifdef PNG_READ_SUPPORTED
-#if defined PNG_READ_TRANSFORMS_SUPPORTED && defined PNG_READ_cHRM_SUPPORTED
-static double
-chromaticity_x(CIE_color c)
-{
- return c.X / (c.X + c.Y + c.Z);
-}
-
-static double
-chromaticity_y(CIE_color c)
-{
- return c.Y / (c.X + c.Y + c.Z);
-}
-
-static CIE_color
-white_point(const color_encoding *encoding)
-{
- CIE_color white;
-
- white.X = encoding->red.X + encoding->green.X + encoding->blue.X;
- white.Y = encoding->red.Y + encoding->green.Y + encoding->blue.Y;
- white.Z = encoding->red.Z + encoding->green.Z + encoding->blue.Z;
-
- return white;
-}
-#endif /* READ_TRANSFORMS && READ_cHRM */
-
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
-static void
-normalize_color_encoding(color_encoding *encoding)
-{
- const double whiteY = encoding->red.Y + encoding->green.Y +
- encoding->blue.Y;
-
- if (whiteY != 1)
- {
- encoding->red.X /= whiteY;
- encoding->red.Y /= whiteY;
- encoding->red.Z /= whiteY;
- encoding->green.X /= whiteY;
- encoding->green.Y /= whiteY;
- encoding->green.Z /= whiteY;
- encoding->blue.X /= whiteY;
- encoding->blue.Y /= whiteY;
- encoding->blue.Z /= whiteY;
- }
-}
-#endif
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
-static size_t
-safecat_color_encoding(char *buffer, size_t bufsize, size_t pos,
- const color_encoding *e, double encoding_gamma)
-{
- if (e != 0)
- {
- if (encoding_gamma != 0)
- pos = safecat(buffer, bufsize, pos, "(");
- pos = safecat(buffer, bufsize, pos, "R(");
- pos = safecatd(buffer, bufsize, pos, e->red.X, 4);
- pos = safecat(buffer, bufsize, pos, ",");
- pos = safecatd(buffer, bufsize, pos, e->red.Y, 4);
- pos = safecat(buffer, bufsize, pos, ",");
- pos = safecatd(buffer, bufsize, pos, e->red.Z, 4);
- pos = safecat(buffer, bufsize, pos, "),G(");
- pos = safecatd(buffer, bufsize, pos, e->green.X, 4);
- pos = safecat(buffer, bufsize, pos, ",");
- pos = safecatd(buffer, bufsize, pos, e->green.Y, 4);
- pos = safecat(buffer, bufsize, pos, ",");
- pos = safecatd(buffer, bufsize, pos, e->green.Z, 4);
- pos = safecat(buffer, bufsize, pos, "),B(");
- pos = safecatd(buffer, bufsize, pos, e->blue.X, 4);
- pos = safecat(buffer, bufsize, pos, ",");
- pos = safecatd(buffer, bufsize, pos, e->blue.Y, 4);
- pos = safecat(buffer, bufsize, pos, ",");
- pos = safecatd(buffer, bufsize, pos, e->blue.Z, 4);
- pos = safecat(buffer, bufsize, pos, ")");
- if (encoding_gamma != 0)
- pos = safecat(buffer, bufsize, pos, ")");
- }
-
- if (encoding_gamma != 0)
- {
- pos = safecat(buffer, bufsize, pos, "^");
- pos = safecatd(buffer, bufsize, pos, encoding_gamma, 5);
- }
-
- return pos;
-}
-#endif /* READ_TRANSFORMS */
-#endif /* PNG_READ_SUPPORTED */
-
-typedef struct png_modifier
-{
- png_store this; /* I am a png_store */
- struct png_modification *modifications; /* Changes to make */
-
- modifier_state state; /* My state */
-
- /* Information from IHDR: */
- png_byte bit_depth; /* From IHDR */
- png_byte colour_type; /* From IHDR */
-
- /* While handling PLTE, IDAT and IEND these chunks may be pended to allow
- * other chunks to be inserted.
- */
- png_uint_32 pending_len;
- png_uint_32 pending_chunk;
-
- /* Test values */
- double *gammas;
- unsigned int ngammas;
- unsigned int ngamma_tests; /* Number of gamma tests to run*/
- double current_gamma; /* 0 if not set */
- const color_encoding *encodings;
- unsigned int nencodings;
- const color_encoding *current_encoding; /* If an encoding has been set */
- unsigned int encoding_counter; /* For iteration */
- int encoding_ignored; /* Something overwrote it */
-
- /* Control variables used to iterate through possible encodings, the
- * following must be set to 0 and tested by the function that uses the
- * png_modifier because the modifier only sets it to 1 (true.)
- */
- unsigned int repeat :1; /* Repeat this transform test. */
- unsigned int test_uses_encoding :1;
-
- /* Lowest sbit to test (pre-1.7 libpng fails for sbit < 8) */
- png_byte sbitlow;
-
- /* Error control - these are the limits on errors accepted by the gamma tests
- * below.
- */
- double maxout8; /* Maximum output value error */
- double maxabs8; /* Absolute sample error 0..1 */
- double maxcalc8; /* Absolute sample error 0..1 */
- double maxpc8; /* Percentage sample error 0..100% */
- double maxout16; /* Maximum output value error */
- double maxabs16; /* Absolute sample error 0..1 */
- double maxcalc16;/* Absolute sample error 0..1 */
- double maxcalcG; /* Absolute sample error 0..1 */
- double maxpc16; /* Percentage sample error 0..100% */
-
- /* This is set by transforms that need to allow a higher limit, it is an
- * internal check on pngvalid to ensure that the calculated error limits are
- * not ridiculous; without this it is too easy to make a mistake in pngvalid
- * that allows any value through.
- *
- * NOTE: this is not checked in release builds.
- */
- double limit; /* limit on error values, normally 4E-3 */
-
- /* Log limits - values above this are logged, but not necessarily
- * warned.
- */
- double log8; /* Absolute error in 8 bits to log */
- double log16; /* Absolute error in 16 bits to log */
-
- /* Logged 8 and 16 bit errors ('output' values): */
- double error_gray_2;
- double error_gray_4;
- double error_gray_8;
- double error_gray_16;
- double error_color_8;
- double error_color_16;
- double error_indexed;
-
- /* Flags: */
- /* Whether to call png_read_update_info, not png_read_start_image, and how
- * many times to call it.
- */
- int use_update_info;
-
- /* Whether or not to interlace. */
- int interlace_type :9; /* int, but must store '1' */
-
- /* Run the standard tests? */
- unsigned int test_standard :1;
-
- /* Run the odd-sized image and interlace read/write tests? */
- unsigned int test_size :1;
-
- /* Run tests on reading with a combination of transforms, */
- unsigned int test_transform :1;
- unsigned int test_tRNS :1; /* Includes tRNS images */
-
- /* When to use the use_input_precision option, this controls the gamma
- * validation code checks. If set any value that is within the transformed
- * range input-.5 to input+.5 will be accepted, otherwise the value must be
- * within the normal limits. It should not be necessary to set this; the
- * result should always be exact within the permitted error limits.
- */
- unsigned int use_input_precision :1;
- unsigned int use_input_precision_sbit :1;
- unsigned int use_input_precision_16to8 :1;
-
- /* If set assume that the calculation bit depth is set by the input
- * precision, not the output precision.
- */
- unsigned int calculations_use_input_precision :1;
-
- /* If set assume that the calculations are done in 16 bits even if the sample
- * depth is 8 bits.
- */
- unsigned int assume_16_bit_calculations :1;
-
- /* Which gamma tests to run: */
- unsigned int test_gamma_threshold :1;
- unsigned int test_gamma_transform :1; /* main tests */
- unsigned int test_gamma_sbit :1;
- unsigned int test_gamma_scale16 :1;
- unsigned int test_gamma_background :1;
- unsigned int test_gamma_alpha_mode :1;
- unsigned int test_gamma_expand16 :1;
- unsigned int test_exhaustive :1;
-
- /* Whether or not to run the low-bit-depth grayscale tests. This fails on
- * gamma images in some cases because of gross inaccuracies in the grayscale
- * gamma handling for low bit depth.
- */
- unsigned int test_lbg :1;
- unsigned int test_lbg_gamma_threshold :1;
- unsigned int test_lbg_gamma_transform :1;
- unsigned int test_lbg_gamma_sbit :1;
- unsigned int test_lbg_gamma_composition :1;
-
- unsigned int log :1; /* Log max error */
-
- /* Buffer information, the buffer size limits the size of the chunks that can
- * be modified - they must fit (including header and CRC) into the buffer!
- */
- size_t flush; /* Count of bytes to flush */
- size_t buffer_count; /* Bytes in buffer */
- size_t buffer_position; /* Position in buffer */
- png_byte buffer[1024];
-} png_modifier;
-
-/* This returns true if the test should be stopped now because it has already
- * failed and it is running silently.
- */
-static int fail(png_modifier *pm)
-{
- return !pm->log && !pm->this.verbose && (pm->this.nerrors > 0 ||
- (pm->this.treat_warnings_as_errors && pm->this.nwarnings > 0));
-}
-
-static void
-modifier_init(png_modifier *pm)
-{
- memset(pm, 0, sizeof *pm);
- store_init(&pm->this);
- pm->modifications = NULL;
- pm->state = modifier_start;
- pm->sbitlow = 1U;
- pm->ngammas = 0;
- pm->ngamma_tests = 0;
- pm->gammas = 0;
- pm->current_gamma = 0;
- pm->encodings = 0;
- pm->nencodings = 0;
- pm->current_encoding = 0;
- pm->encoding_counter = 0;
- pm->encoding_ignored = 0;
- pm->repeat = 0;
- pm->test_uses_encoding = 0;
- pm->maxout8 = pm->maxpc8 = pm->maxabs8 = pm->maxcalc8 = 0;
- pm->maxout16 = pm->maxpc16 = pm->maxabs16 = pm->maxcalc16 = 0;
- pm->maxcalcG = 0;
- pm->limit = 4E-3;
- pm->log8 = pm->log16 = 0; /* Means 'off' */
- pm->error_gray_2 = pm->error_gray_4 = pm->error_gray_8 = 0;
- pm->error_gray_16 = pm->error_color_8 = pm->error_color_16 = 0;
- pm->error_indexed = 0;
- pm->use_update_info = 0;
- pm->interlace_type = PNG_INTERLACE_NONE;
- pm->test_standard = 0;
- pm->test_size = 0;
- pm->test_transform = 0;
-# ifdef PNG_WRITE_tRNS_SUPPORTED
- pm->test_tRNS = 1;
-# else
- pm->test_tRNS = 0;
-# endif
- pm->use_input_precision = 0;
- pm->use_input_precision_sbit = 0;
- pm->use_input_precision_16to8 = 0;
- pm->calculations_use_input_precision = 0;
- pm->assume_16_bit_calculations = 0;
- pm->test_gamma_threshold = 0;
- pm->test_gamma_transform = 0;
- pm->test_gamma_sbit = 0;
- pm->test_gamma_scale16 = 0;
- pm->test_gamma_background = 0;
- pm->test_gamma_alpha_mode = 0;
- pm->test_gamma_expand16 = 0;
- pm->test_lbg = 1;
- pm->test_lbg_gamma_threshold = 1;
- pm->test_lbg_gamma_transform = 1;
- pm->test_lbg_gamma_sbit = 1;
- pm->test_lbg_gamma_composition = 1;
- pm->test_exhaustive = 0;
- pm->log = 0;
-
- /* Rely on the memset for all the other fields - there are no pointers */
-}
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
-
-/* This controls use of checks that explicitly know how libpng digitizes the
- * samples in calculations; setting this circumvents simple error limit checking
- * in the rgb_to_gray check, replacing it with an exact copy of the libpng 1.5
- * algorithm.
- */
-#define DIGITIZE PNG_LIBPNG_VER < 10700
-
-/* If pm->calculations_use_input_precision is set then operations will happen
- * with the precision of the input, not the precision of the output depth.
- *
- * If pm->assume_16_bit_calculations is set then even 8 bit calculations use 16
- * bit precision. This only affects those of the following limits that pertain
- * to a calculation - not a digitization operation - unless the following API is
- * called directly.
- */
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
-#if DIGITIZE
-static double digitize(double value, int depth, int do_round)
-{
- /* 'value' is in the range 0 to 1, the result is the same value rounded to a
- * multiple of the digitization factor - 8 or 16 bits depending on both the
- * sample depth and the 'assume' setting. Digitization is normally by
- * rounding and 'do_round' should be 1, if it is 0 the digitized value will
- * be truncated.
- */
- unsigned int digitization_factor = (1U << depth) - 1;
-
- /* Limiting the range is done as a convenience to the caller - it's easier to
- * do it once here than every time at the call site.
- */
- if (value <= 0)
- value = 0;
-
- else if (value >= 1)
- value = 1;
-
- value *= digitization_factor;
- if (do_round) value += .5;
- return floor(value)/digitization_factor;
-}
-#endif
-#endif /* RGB_TO_GRAY */
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
-static double abserr(const png_modifier *pm, int in_depth, int out_depth)
-{
- /* Absolute error permitted in linear values - affected by the bit depth of
- * the calculations.
- */
- if (pm->assume_16_bit_calculations ||
- (pm->calculations_use_input_precision ? in_depth : out_depth) == 16)
- return pm->maxabs16;
- else
- return pm->maxabs8;
-}
-
-static double calcerr(const png_modifier *pm, int in_depth, int out_depth)
-{
- /* Error in the linear composition arithmetic - only relevant when
- * composition actually happens (0 < alpha < 1).
- */
- if ((pm->calculations_use_input_precision ? in_depth : out_depth) == 16)
- return pm->maxcalc16;
- else if (pm->assume_16_bit_calculations)
- return pm->maxcalcG;
- else
- return pm->maxcalc8;
-}
-
-static double pcerr(const png_modifier *pm, int in_depth, int out_depth)
-{
- /* Percentage error permitted in the linear values. Note that the specified
- * value is a percentage but this routine returns a simple number.
- */
- if (pm->assume_16_bit_calculations ||
- (pm->calculations_use_input_precision ? in_depth : out_depth) == 16)
- return pm->maxpc16 * .01;
- else
- return pm->maxpc8 * .01;
-}
-
-/* Output error - the error in the encoded value. This is determined by the
- * digitization of the output so can be +/-0.5 in the actual output value. In
- * the expand_16 case with the current code in libpng the expand happens after
- * all the calculations are done in 8 bit arithmetic, so even though the output
- * depth is 16 the output error is determined by the 8 bit calculation.
- *
- * This limit is not determined by the bit depth of internal calculations.
- *
- * The specified parameter does *not* include the base .5 digitization error but
- * it is added here.
- */
-static double outerr(const png_modifier *pm, int in_depth, int out_depth)
-{
- /* There is a serious error in the 2 and 4 bit grayscale transform because
- * the gamma table value (8 bits) is simply shifted, not rounded, so the
- * error in 4 bit grayscale gamma is up to the value below. This is a hack
- * to allow pngvalid to succeed:
- *
- * TODO: fix this in libpng
- */
- if (out_depth == 2)
- return .73182-.5;
-
- if (out_depth == 4)
- return .90644-.5;
-
- if ((pm->calculations_use_input_precision ? in_depth : out_depth) == 16)
- return pm->maxout16;
-
- /* This is the case where the value was calculated at 8-bit precision then
- * scaled to 16 bits.
- */
- else if (out_depth == 16)
- return pm->maxout8 * 257;
-
- else
- return pm->maxout8;
-}
-
-/* This does the same thing as the above however it returns the value to log,
- * rather than raising a warning. This is useful for debugging to track down
- * exactly what set of parameters cause high error values.
- */
-static double outlog(const png_modifier *pm, int in_depth, int out_depth)
-{
- /* The command line parameters are either 8 bit (0..255) or 16 bit (0..65535)
- * and so must be adjusted for low bit depth grayscale:
- */
- if (out_depth <= 8)
- {
- if (pm->log8 == 0) /* switched off */
- return 256;
-
- if (out_depth < 8)
- return pm->log8 / 255 * ((1<<out_depth)-1);
-
- return pm->log8;
- }
-
- if ((pm->calculations_use_input_precision ? in_depth : out_depth) == 16)
- {
- if (pm->log16 == 0)
- return 65536;
-
- return pm->log16;
- }
-
- /* This is the case where the value was calculated at 8-bit precision then
- * scaled to 16 bits.
- */
- if (pm->log8 == 0)
- return 65536;
-
- return pm->log8 * 257;
-}
-
-/* This complements the above by providing the appropriate quantization for the
- * final value. Normally this would just be quantization to an integral value,
- * but in the 8 bit calculation case it's actually quantization to a multiple of
- * 257!
- */
-static int output_quantization_factor(const png_modifier *pm, int in_depth,
- int out_depth)
-{
- if (out_depth == 16 && in_depth != 16 &&
- pm->calculations_use_input_precision)
- return 257;
- else
- return 1;
-}
-#endif /* PNG_READ_GAMMA_SUPPORTED */
-
-/* One modification structure must be provided for each chunk to be modified (in
- * fact more than one can be provided if multiple separate changes are desired
- * for a single chunk.) Modifications include adding a new chunk when a
- * suitable chunk does not exist.
- *
- * The caller of modify_fn will reset the CRC of the chunk and record 'modified'
- * or 'added' as appropriate if the modify_fn returns 1 (true). If the
- * modify_fn is NULL the chunk is simply removed.
- */
-typedef struct png_modification
-{
- struct png_modification *next;
- png_uint_32 chunk;
-
- /* If the following is NULL all matching chunks will be removed: */
- int (*modify_fn)(struct png_modifier *pm,
- struct png_modification *me, int add);
-
- /* If the following is set to PLTE, IDAT or IEND and the chunk has not been
- * found and modified (and there is a modify_fn) the modify_fn will be called
- * to add the chunk before the relevant chunk.
- */
- png_uint_32 add;
- unsigned int modified :1; /* Chunk was modified */
- unsigned int added :1; /* Chunk was added */
- unsigned int removed :1; /* Chunk was removed */
-} png_modification;
-
-static void
-modification_reset(png_modification *pmm)
-{
- if (pmm != NULL)
- {
- pmm->modified = 0;
- pmm->added = 0;
- pmm->removed = 0;
- modification_reset(pmm->next);
- }
-}
-
-static void
-modification_init(png_modification *pmm)
-{
- memset(pmm, 0, sizeof *pmm);
- pmm->next = NULL;
- pmm->chunk = 0;
- pmm->modify_fn = NULL;
- pmm->add = 0;
- modification_reset(pmm);
-}
-
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
-static void
-modifier_current_encoding(const png_modifier *pm, color_encoding *ce)
-{
- if (pm->current_encoding != 0)
- *ce = *pm->current_encoding;
-
- else
- memset(ce, 0, sizeof *ce);
-
- ce->gamma = pm->current_gamma;
-}
-#endif
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
-static size_t
-safecat_current_encoding(char *buffer, size_t bufsize, size_t pos,
- const png_modifier *pm)
-{
- pos = safecat_color_encoding(buffer, bufsize, pos, pm->current_encoding,
- pm->current_gamma);
-
- if (pm->encoding_ignored)
- pos = safecat(buffer, bufsize, pos, "[overridden]");
-
- return pos;
-}
-#endif
-
-/* Iterate through the usefully testable color encodings. An encoding is one
- * of:
- *
- * 1) Nothing (no color space, no gamma).
- * 2) Just a gamma value from the gamma array (including 1.0)
- * 3) A color space from the encodings array with the corresponding gamma.
- * 4) The same, but with gamma 1.0 (only really useful with 16 bit calculations)
- *
- * The iterator selects these in turn, the randomizer selects one at random,
- * which is used depends on the setting of the 'test_exhaustive' flag. Notice
- * that this function changes the colour space encoding so it must only be
- * called on completion of the previous test. This is what 'modifier_reset'
- * does, below.
- *
- * After the function has been called the 'repeat' flag will still be set; the
- * caller of modifier_reset must reset it at the start of each run of the test!
- */
-static unsigned int
-modifier_total_encodings(const png_modifier *pm)
-{
- return 1 + /* (1) nothing */
- pm->ngammas + /* (2) gamma values to test */
- pm->nencodings + /* (3) total number of encodings */
- /* The following test only works after the first time through the
- * png_modifier code because 'bit_depth' is set when the IHDR is read.
- * modifier_reset, below, preserves the setting until after it has called
- * the iterate function (also below.)
- *
- * For this reason do not rely on this function outside a call to
- * modifier_reset.
- */
- ((pm->bit_depth == 16 || pm->assume_16_bit_calculations) ?
- pm->nencodings : 0); /* (4) encodings with gamma == 1.0 */
-}
-
-static void
-modifier_encoding_iterate(png_modifier *pm)
-{
- if (!pm->repeat && /* Else something needs the current encoding again. */
- pm->test_uses_encoding) /* Some transform is encoding dependent */
- {
- if (pm->test_exhaustive)
- {
- if (++pm->encoding_counter >= modifier_total_encodings(pm))
- pm->encoding_counter = 0; /* This will stop the repeat */
- }
-
- else
- {
- /* Not exhaustive - choose an encoding at random; generate a number in
- * the range 1..(max-1), so the result is always non-zero:
- */
- if (pm->encoding_counter == 0)
- pm->encoding_counter = random_mod(modifier_total_encodings(pm)-1)+1;
- else
- pm->encoding_counter = 0;
- }
-
- if (pm->encoding_counter > 0)
- pm->repeat = 1;
- }
-
- else if (!pm->repeat)
- pm->encoding_counter = 0;
-}
-
-static void
-modifier_reset(png_modifier *pm)
-{
- store_read_reset(&pm->this);
- pm->limit = 4E-3;
- pm->pending_len = pm->pending_chunk = 0;
- pm->flush = pm->buffer_count = pm->buffer_position = 0;
- pm->modifications = NULL;
- pm->state = modifier_start;
- modifier_encoding_iterate(pm);
- /* The following must be set in the next run. In particular
- * test_uses_encodings must be set in the _ini function of each transform
- * that looks at the encodings. (Not the 'add' function!)
- */
- pm->test_uses_encoding = 0;
- pm->current_gamma = 0;
- pm->current_encoding = 0;
- pm->encoding_ignored = 0;
- /* These only become value after IHDR is read: */
- pm->bit_depth = pm->colour_type = 0;
-}
-
-/* The following must be called before anything else to get the encoding set up
- * on the modifier. In particular it must be called before the transform init
- * functions are called.
- */
-static void
-modifier_set_encoding(png_modifier *pm)
-{
- /* Set the encoding to the one specified by the current encoding counter,
- * first clear out all the settings - this corresponds to an encoding_counter
- * of 0.
- */
- pm->current_gamma = 0;
- pm->current_encoding = 0;
- pm->encoding_ignored = 0; /* not ignored yet - happens in _ini functions. */
-
- /* Now, if required, set the gamma and encoding fields. */
- if (pm->encoding_counter > 0)
- {
- /* The gammas[] array is an array of screen gammas, not encoding gammas,
- * so we need the inverse:
- */
- if (pm->encoding_counter <= pm->ngammas)
- pm->current_gamma = 1/pm->gammas[pm->encoding_counter-1];
-
- else
- {
- unsigned int i = pm->encoding_counter - pm->ngammas;
-
- if (i >= pm->nencodings)
- {
- i %= pm->nencodings;
- pm->current_gamma = 1; /* Linear, only in the 16 bit case */
- }
-
- else
- pm->current_gamma = pm->encodings[i].gamma;
-
- pm->current_encoding = pm->encodings + i;
- }
- }
-}
-
-/* Enquiry functions to find out what is set. Notice that there is an implicit
- * assumption below that the first encoding in the list is the one for sRGB.
- */
-static int
-modifier_color_encoding_is_sRGB(const png_modifier *pm)
-{
- return pm->current_encoding != 0 && pm->current_encoding == pm->encodings &&
- pm->current_encoding->gamma == pm->current_gamma;
-}
-
-static int
-modifier_color_encoding_is_set(const png_modifier *pm)
-{
- return pm->current_gamma != 0;
-}
-
-/* The guts of modification are performed during a read. */
-static void
-modifier_crc(png_bytep buffer)
-{
- /* Recalculate the chunk CRC - a complete chunk must be in
- * the buffer, at the start.
- */
- uInt datalen = png_get_uint_32(buffer);
- uLong crc = crc32(0, buffer+4, datalen+4);
- /* The cast to png_uint_32 is safe because a crc32 is always a 32 bit value.
- */
- png_save_uint_32(buffer+datalen+8, (png_uint_32)crc);
-}
-
-static void
-modifier_setbuffer(png_modifier *pm)
-{
- modifier_crc(pm->buffer);
- pm->buffer_count = png_get_uint_32(pm->buffer)+12;
- pm->buffer_position = 0;
-}
-
-/* Separate the callback into the actual implementation (which is passed the
- * png_modifier explicitly) and the callback, which gets the modifier from the
- * png_struct.
- */
-static void
-modifier_read_imp(png_modifier *pm, png_bytep pb, size_t st)
-{
- while (st > 0)
- {
- size_t cb;
- png_uint_32 len, chunk;
- png_modification *mod;
-
- if (pm->buffer_position >= pm->buffer_count) switch (pm->state)
- {
- static png_byte sign[8] = { 137, 80, 78, 71, 13, 10, 26, 10 };
- case modifier_start:
- store_read_chunk(&pm->this, pm->buffer, 8, 8); /* signature. */
- pm->buffer_count = 8;
- pm->buffer_position = 0;
-
- if (memcmp(pm->buffer, sign, 8) != 0)
- png_error(pm->this.pread, "invalid PNG file signature");
- pm->state = modifier_signature;
- break;
-
- case modifier_signature:
- store_read_chunk(&pm->this, pm->buffer, 13+12, 13+12); /* IHDR */
- pm->buffer_count = 13+12;
- pm->buffer_position = 0;
-
- if (png_get_uint_32(pm->buffer) != 13 ||
- png_get_uint_32(pm->buffer+4) != CHUNK_IHDR)
- png_error(pm->this.pread, "invalid IHDR");
-
- /* Check the list of modifiers for modifications to the IHDR. */
- mod = pm->modifications;
- while (mod != NULL)
- {
- if (mod->chunk == CHUNK_IHDR && mod->modify_fn &&
- (*mod->modify_fn)(pm, mod, 0))
- {
- mod->modified = 1;
- modifier_setbuffer(pm);
- }
-
- /* Ignore removal or add if IHDR! */
- mod = mod->next;
- }
-
- /* Cache information from the IHDR (the modified one.) */
- pm->bit_depth = pm->buffer[8+8];
- pm->colour_type = pm->buffer[8+8+1];
-
- pm->state = modifier_IHDR;
- pm->flush = 0;
- break;
-
- case modifier_IHDR:
- default:
- /* Read a new chunk and process it until we see PLTE, IDAT or
- * IEND. 'flush' indicates that there is still some data to
- * output from the preceding chunk.
- */
- if ((cb = pm->flush) > 0)
- {
- if (cb > st) cb = st;
- pm->flush -= cb;
- store_read_chunk(&pm->this, pb, cb, cb);
- pb += cb;
- st -= cb;
- if (st == 0) return;
- }
-
- /* No more bytes to flush, read a header, or handle a pending
- * chunk.
- */
- if (pm->pending_chunk != 0)
- {
- png_save_uint_32(pm->buffer, pm->pending_len);
- png_save_uint_32(pm->buffer+4, pm->pending_chunk);
- pm->pending_len = 0;
- pm->pending_chunk = 0;
- }
- else
- store_read_chunk(&pm->this, pm->buffer, 8, 8);
-
- pm->buffer_count = 8;
- pm->buffer_position = 0;
-
- /* Check for something to modify or a terminator chunk. */
- len = png_get_uint_32(pm->buffer);
- chunk = png_get_uint_32(pm->buffer+4);
-
- /* Terminators first, they may have to be delayed for added
- * chunks
- */
- if (chunk == CHUNK_PLTE || chunk == CHUNK_IDAT ||
- chunk == CHUNK_IEND)
- {
- mod = pm->modifications;
-
- while (mod != NULL)
- {
- if ((mod->add == chunk ||
- (mod->add == CHUNK_PLTE && chunk == CHUNK_IDAT)) &&
- mod->modify_fn != NULL && !mod->modified && !mod->added)
- {
- /* Regardless of what the modify function does do not run
- * this again.
- */
- mod->added = 1;
-
- if ((*mod->modify_fn)(pm, mod, 1 /*add*/))
- {
- /* Reset the CRC on a new chunk */
- if (pm->buffer_count > 0)
- modifier_setbuffer(pm);
-
- else
- {
- pm->buffer_position = 0;
- mod->removed = 1;
- }
-
- /* The buffer has been filled with something (we assume)
- * so output this. Pend the current chunk.
- */
- pm->pending_len = len;
- pm->pending_chunk = chunk;
- break; /* out of while */
- }
- }
-
- mod = mod->next;
- }
-
- /* Don't do any further processing if the buffer was modified -
- * otherwise the code will end up modifying a chunk that was
- * just added.
- */
- if (mod != NULL)
- break; /* out of switch */
- }
-
- /* If we get to here then this chunk may need to be modified. To
- * do this it must be less than 1024 bytes in total size, otherwise
- * it just gets flushed.
- */
- if (len+12 <= sizeof pm->buffer)
- {
- size_t s = len+12-pm->buffer_count;
- store_read_chunk(&pm->this, pm->buffer+pm->buffer_count, s, s);
- pm->buffer_count = len+12;
-
- /* Check for a modification, else leave it be. */
- mod = pm->modifications;
- while (mod != NULL)
- {
- if (mod->chunk == chunk)
- {
- if (mod->modify_fn == NULL)
- {
- /* Remove this chunk */
- pm->buffer_count = pm->buffer_position = 0;
- mod->removed = 1;
- break; /* Terminate the while loop */
- }
-
- else if ((*mod->modify_fn)(pm, mod, 0))
- {
- mod->modified = 1;
- /* The chunk may have been removed: */
- if (pm->buffer_count == 0)
- {
- pm->buffer_position = 0;
- break;
- }
- modifier_setbuffer(pm);
- }
- }
-
- mod = mod->next;
- }
- }
-
- else
- pm->flush = len+12 - pm->buffer_count; /* data + crc */
-
- /* Take the data from the buffer (if there is any). */
- break;
- }
-
- /* Here to read from the modifier buffer (not directly from
- * the store, as in the flush case above.)
- */
- cb = pm->buffer_count - pm->buffer_position;
-
- if (cb > st)
- cb = st;
-
- memcpy(pb, pm->buffer + pm->buffer_position, cb);
- st -= cb;
- pb += cb;
- pm->buffer_position += cb;
- }
-}
-
-/* The callback: */
-static void PNGCBAPI
-modifier_read(png_structp ppIn, png_bytep pb, size_t st)
-{
- png_const_structp pp = ppIn;
- png_modifier *pm = voidcast(png_modifier*, png_get_io_ptr(pp));
-
- if (pm == NULL || pm->this.pread != pp)
- png_error(pp, "bad modifier_read call");
-
- modifier_read_imp(pm, pb, st);
-}
-
-/* Like store_progressive_read but the data is getting changed as we go so we
- * need a local buffer.
- */
-static void
-modifier_progressive_read(png_modifier *pm, png_structp pp, png_infop pi)
-{
- if (pm->this.pread != pp || pm->this.current == NULL ||
- pm->this.next == NULL)
- png_error(pp, "store state damaged (progressive)");
-
- /* This is another Horowitz and Hill random noise generator. In this case
- * the aim is to stress the progressive reader with truly horrible variable
- * buffer sizes in the range 1..500, so a sequence of 9 bit random numbers
- * is generated. We could probably just count from 1 to 32767 and get as
- * good a result.
- */
- for (;;)
- {
- static png_uint_32 noise = 1;
- size_t cb, cbAvail;
- png_byte buffer[512];
-
- /* Generate 15 more bits of stuff: */
- noise = (noise << 9) | ((noise ^ (noise >> (9-5))) & 0x1ff);
- cb = noise & 0x1ff;
-
- /* Check that this number of bytes are available (in the current buffer.)
- * (This doesn't quite work - the modifier might delete a chunk; unlikely
- * but possible, it doesn't happen at present because the modifier only
- * adds chunks to standard images.)
- */
- cbAvail = store_read_buffer_avail(&pm->this);
- if (pm->buffer_count > pm->buffer_position)
- cbAvail += pm->buffer_count - pm->buffer_position;
-
- if (cb > cbAvail)
- {
- /* Check for EOF: */
- if (cbAvail == 0)
- break;
-
- cb = cbAvail;
- }
-
- modifier_read_imp(pm, buffer, cb);
- png_process_data(pp, pi, buffer, cb);
- }
-
- /* Check the invariants at the end (if this fails it's a problem in this
- * file!)
- */
- if (pm->buffer_count > pm->buffer_position ||
- pm->this.next != &pm->this.current->data ||
- pm->this.readpos < pm->this.current->datacount)
- png_error(pp, "progressive read implementation error");
-}
-
-/* Set up a modifier. */
-static png_structp
-set_modifier_for_read(png_modifier *pm, png_infopp ppi, png_uint_32 id,
- const char *name)
-{
- /* Do this first so that the modifier fields are cleared even if an error
- * happens allocating the png_struct. No allocation is done here so no
- * cleanup is required.
- */
- pm->state = modifier_start;
- pm->bit_depth = 0;
- pm->colour_type = 255;
-
- pm->pending_len = 0;
- pm->pending_chunk = 0;
- pm->flush = 0;
- pm->buffer_count = 0;
- pm->buffer_position = 0;
-
- return set_store_for_read(&pm->this, ppi, id, name);
-}
-
-
-/******************************** MODIFICATIONS *******************************/
-/* Standard modifications to add chunks. These do not require the _SUPPORTED
- * macros because the chunks can be there regardless of whether this specific
- * libpng supports them.
- */
-typedef struct gama_modification
-{
- png_modification this;
- png_fixed_point gamma;
-} gama_modification;
-
-static int
-gama_modify(png_modifier *pm, png_modification *me, int add)
-{
- UNUSED(add)
- /* This simply dumps the given gamma value into the buffer. */
- png_save_uint_32(pm->buffer, 4);
- png_save_uint_32(pm->buffer+4, CHUNK_gAMA);
- png_save_uint_32(pm->buffer+8, ((gama_modification*)me)->gamma);
- return 1;
-}
-
-static void
-gama_modification_init(gama_modification *me, png_modifier *pm, double gammad)
-{
- double g;
-
- modification_init(&me->this);
- me->this.chunk = CHUNK_gAMA;
- me->this.modify_fn = gama_modify;
- me->this.add = CHUNK_PLTE;
- g = fix(gammad);
- me->gamma = (png_fixed_point)g;
- me->this.next = pm->modifications;
- pm->modifications = &me->this;
-}
-
-typedef struct chrm_modification
-{
- png_modification this;
- const color_encoding *encoding;
- png_fixed_point wx, wy, rx, ry, gx, gy, bx, by;
-} chrm_modification;
-
-static int
-chrm_modify(png_modifier *pm, png_modification *me, int add)
-{
- UNUSED(add)
- /* As with gAMA this just adds the required cHRM chunk to the buffer. */
- png_save_uint_32(pm->buffer , 32);
- png_save_uint_32(pm->buffer+ 4, CHUNK_cHRM);
- png_save_uint_32(pm->buffer+ 8, ((chrm_modification*)me)->wx);
- png_save_uint_32(pm->buffer+12, ((chrm_modification*)me)->wy);
- png_save_uint_32(pm->buffer+16, ((chrm_modification*)me)->rx);
- png_save_uint_32(pm->buffer+20, ((chrm_modification*)me)->ry);
- png_save_uint_32(pm->buffer+24, ((chrm_modification*)me)->gx);
- png_save_uint_32(pm->buffer+28, ((chrm_modification*)me)->gy);
- png_save_uint_32(pm->buffer+32, ((chrm_modification*)me)->bx);
- png_save_uint_32(pm->buffer+36, ((chrm_modification*)me)->by);
- return 1;
-}
-
-static void
-chrm_modification_init(chrm_modification *me, png_modifier *pm,
- const color_encoding *encoding)
-{
- CIE_color white = white_point(encoding);
-
- /* Original end points: */
- me->encoding = encoding;
-
- /* Chromaticities (in fixed point): */
- me->wx = fix(chromaticity_x(white));
- me->wy = fix(chromaticity_y(white));
-
- me->rx = fix(chromaticity_x(encoding->red));
- me->ry = fix(chromaticity_y(encoding->red));
- me->gx = fix(chromaticity_x(encoding->green));
- me->gy = fix(chromaticity_y(encoding->green));
- me->bx = fix(chromaticity_x(encoding->blue));
- me->by = fix(chromaticity_y(encoding->blue));
-
- modification_init(&me->this);
- me->this.chunk = CHUNK_cHRM;
- me->this.modify_fn = chrm_modify;
- me->this.add = CHUNK_PLTE;
- me->this.next = pm->modifications;
- pm->modifications = &me->this;
-}
-
-typedef struct srgb_modification
-{
- png_modification this;
- png_byte intent;
-} srgb_modification;
-
-static int
-srgb_modify(png_modifier *pm, png_modification *me, int add)
-{
- UNUSED(add)
- /* As above, ignore add and just make a new chunk */
- png_save_uint_32(pm->buffer, 1);
- png_save_uint_32(pm->buffer+4, CHUNK_sRGB);
- pm->buffer[8] = ((srgb_modification*)me)->intent;
- return 1;
-}
-
-static void
-srgb_modification_init(srgb_modification *me, png_modifier *pm, png_byte intent)
-{
- modification_init(&me->this);
- me->this.chunk = CHUNK_sBIT;
-
- if (intent <= 3) /* if valid, else *delete* sRGB chunks */
- {
- me->this.modify_fn = srgb_modify;
- me->this.add = CHUNK_PLTE;
- me->intent = intent;
- }
-
- else
- {
- me->this.modify_fn = 0;
- me->this.add = 0;
- me->intent = 0;
- }
-
- me->this.next = pm->modifications;
- pm->modifications = &me->this;
-}
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
-typedef struct sbit_modification
-{
- png_modification this;
- png_byte sbit;
-} sbit_modification;
-
-static int
-sbit_modify(png_modifier *pm, png_modification *me, int add)
-{
- png_byte sbit = ((sbit_modification*)me)->sbit;
- if (pm->bit_depth > sbit)
- {
- int cb = 0;
- switch (pm->colour_type)
- {
- case 0:
- cb = 1;
- break;
-
- case 2:
- case 3:
- cb = 3;
- break;
-
- case 4:
- cb = 2;
- break;
-
- case 6:
- cb = 4;
- break;
-
- default:
- png_error(pm->this.pread,
- "unexpected colour type in sBIT modification");
- }
-
- png_save_uint_32(pm->buffer, cb);
- png_save_uint_32(pm->buffer+4, CHUNK_sBIT);
-
- while (cb > 0)
- (pm->buffer+8)[--cb] = sbit;
-
- return 1;
- }
- else if (!add)
- {
- /* Remove the sBIT chunk */
- pm->buffer_count = pm->buffer_position = 0;
- return 1;
- }
- else
- return 0; /* do nothing */
-}
-
-static void
-sbit_modification_init(sbit_modification *me, png_modifier *pm, png_byte sbit)
-{
- modification_init(&me->this);
- me->this.chunk = CHUNK_sBIT;
- me->this.modify_fn = sbit_modify;
- me->this.add = CHUNK_PLTE;
- me->sbit = sbit;
- me->this.next = pm->modifications;
- pm->modifications = &me->this;
-}
-#endif /* PNG_READ_GAMMA_SUPPORTED */
-#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
-
-/***************************** STANDARD PNG FILES *****************************/
-/* Standard files - write and save standard files. */
-/* There are two basic forms of standard images. Those which attempt to have
- * all the possible pixel values (not possible for 16bpp images, but a range of
- * values are produced) and those which have a range of image sizes. The former
- * are used for testing transforms, in particular gamma correction and bit
- * reduction and increase. The latter are reserved for testing the behavior of
- * libpng with respect to 'odd' image sizes - particularly small images where
- * rows become 1 byte and interlace passes disappear.
- *
- * The first, most useful, set are the 'transform' images, the second set of
- * small images are the 'size' images.
- *
- * The transform files are constructed with rows which fit into a 1024 byte row
- * buffer. This makes allocation easier below. Further regardless of the file
- * format every row has 128 pixels (giving 1024 bytes for 64bpp formats).
- *
- * Files are stored with no gAMA or sBIT chunks, with a PLTE only when needed
- * and with an ID derived from the colour type, bit depth and interlace type
- * as above (FILEID). The width (128) and height (variable) are not stored in
- * the FILEID - instead the fields are set to 0, indicating a transform file.
- *
- * The size files ar constructed with rows a maximum of 128 bytes wide, allowing
- * a maximum width of 16 pixels (for the 64bpp case.) They also have a maximum
- * height of 16 rows. The width and height are stored in the FILEID and, being
- * non-zero, indicate a size file.
- *
- * Because the PNG filter code is typically the largest CPU consumer within
- * libpng itself there is a tendency to attempt to optimize it. This results in
- * special case code which needs to be validated. To cause this to happen the
- * 'size' images are made to use each possible filter, in so far as this is
- * possible for smaller images.
- *
- * For palette image (colour type 3) multiple transform images are stored with
- * the same bit depth to allow testing of more colour combinations -
- * particularly important for testing the gamma code because libpng uses a
- * different code path for palette images. For size images a single palette is
- * used.
- */
-
-/* Make a 'standard' palette. Because there are only 256 entries in a palette
- * (maximum) this actually makes a random palette in the hope that enough tests
- * will catch enough errors. (Note that the same palette isn't produced every
- * time for the same test - it depends on what previous tests have been run -
- * but a given set of arguments to pngvalid will always produce the same palette
- * at the same test! This is why pseudo-random number generators are useful for
- * testing.)
- *
- * The store must be open for write when this is called, otherwise an internal
- * error will occur. This routine contains its own magic number seed, so the
- * palettes generated don't change if there are intervening errors (changing the
- * calls to the store_mark seed.)
- */
-static store_palette_entry *
-make_standard_palette(png_store* ps, int npalette, int do_tRNS)
-{
- static png_uint_32 palette_seed[2] = { 0x87654321, 9 };
-
- int i = 0;
- png_byte values[256][4];
-
- /* Always put in black and white plus the six primary and secondary colors.
- */
- for (; i<8; ++i)
- {
- values[i][1] = (png_byte)((i&1) ? 255U : 0U);
- values[i][2] = (png_byte)((i&2) ? 255U : 0U);
- values[i][3] = (png_byte)((i&4) ? 255U : 0U);
- }
-
- /* Then add 62 grays (one quarter of the remaining 256 slots). */
- {
- int j = 0;
- png_byte random_bytes[4];
- png_byte need[256];
-
- need[0] = 0; /*got black*/
- memset(need+1, 1, (sizeof need)-2); /*need these*/
- need[255] = 0; /*but not white*/
-
- while (i<70)
- {
- png_byte b;
-
- if (j==0)
- {
- make_four_random_bytes(palette_seed, random_bytes);
- j = 4;
- }
-
- b = random_bytes[--j];
- if (need[b])
- {
- values[i][1] = b;
- values[i][2] = b;
- values[i++][3] = b;
- }
- }
- }
-
- /* Finally add 192 colors at random - don't worry about matches to things we
- * already have, chance is less than 1/65536. Don't worry about grays,
- * chance is the same, so we get a duplicate or extra gray less than 1 time
- * in 170.
- */
- for (; i<256; ++i)
- make_four_random_bytes(palette_seed, values[i]);
-
- /* Fill in the alpha values in the first byte. Just use all possible values
- * (0..255) in an apparently random order:
- */
- {
- store_palette_entry *palette;
- png_byte selector[4];
-
- make_four_random_bytes(palette_seed, selector);
-
- if (do_tRNS)
- for (i=0; i<256; ++i)
- values[i][0] = (png_byte)(i ^ selector[0]);
-
- else
- for (i=0; i<256; ++i)
- values[i][0] = 255; /* no transparency/tRNS chunk */
-
- /* 'values' contains 256 ARGB values, but we only need 'npalette'.
- * 'npalette' will always be a power of 2: 2, 4, 16 or 256. In the low
- * bit depth cases select colors at random, else it is difficult to have
- * a set of low bit depth palette test with any chance of a reasonable
- * range of colors. Do this by randomly permuting values into the low
- * 'npalette' entries using an XOR mask generated here. This also
- * permutes the npalette == 256 case in a potentially useful way (there is
- * no relationship between palette index and the color value therein!)
- */
- palette = store_write_palette(ps, npalette);
-
- for (i=0; i<npalette; ++i)
- {
- palette[i].alpha = values[i ^ selector[1]][0];
- palette[i].red = values[i ^ selector[1]][1];
- palette[i].green = values[i ^ selector[1]][2];
- palette[i].blue = values[i ^ selector[1]][3];
- }
-
- return palette;
- }
-}
-
-/* Initialize a standard palette on a write stream. The 'do_tRNS' argument
- * indicates whether or not to also set the tRNS chunk.
- */
-/* TODO: the png_structp here can probably be 'const' in the future */
-static void
-init_standard_palette(png_store *ps, png_structp pp, png_infop pi, int npalette,
- int do_tRNS)
-{
- store_palette_entry *ppal = make_standard_palette(ps, npalette, do_tRNS);
-
- {
- int i;
- png_color palette[256];
-
- /* Set all entries to detect overread errors. */
- for (i=0; i<npalette; ++i)
- {
- palette[i].red = ppal[i].red;
- palette[i].green = ppal[i].green;
- palette[i].blue = ppal[i].blue;
- }
-
- /* Just in case fill in the rest with detectable values: */
- for (; i<256; ++i)
- palette[i].red = palette[i].green = palette[i].blue = 42;
-
- png_set_PLTE(pp, pi, palette, npalette);
- }
-
- if (do_tRNS)
- {
- int i, j;
- png_byte tRNS[256];
-
- /* Set all the entries, but skip trailing opaque entries */
- for (i=j=0; i<npalette; ++i)
- if ((tRNS[i] = ppal[i].alpha) < 255)
- j = i+1;
-
- /* Fill in the remainder with a detectable value: */
- for (; i<256; ++i)
- tRNS[i] = 24;
-
-#ifdef PNG_WRITE_tRNS_SUPPORTED
- if (j > 0)
- png_set_tRNS(pp, pi, tRNS, j, 0/*color*/);
-#endif
- }
-}
-
-#ifdef PNG_WRITE_tRNS_SUPPORTED
-static void
-set_random_tRNS(png_structp pp, png_infop pi, png_byte colour_type,
- int bit_depth)
-{
- /* To make this useful the tRNS color needs to match at least one pixel.
- * Random values are fine for gray, including the 16-bit case where we know
- * that the test image contains all the gray values. For RGB we need more
- * method as only 65536 different RGB values are generated.
- */
- png_color_16 tRNS;
- png_uint_16 mask = (png_uint_16)((1U << bit_depth)-1);
-
- R8(tRNS); /* makes unset fields random */
-
- if (colour_type & 2/*RGB*/)
- {
- if (bit_depth == 8)
- {
- tRNS.red = random_u16();
- tRNS.green = random_u16();
- tRNS.blue = tRNS.red ^ tRNS.green;
- tRNS.red &= mask;
- tRNS.green &= mask;
- tRNS.blue &= mask;
- }
-
- else /* bit_depth == 16 */
- {
- tRNS.red = random_u16();
- tRNS.green = (png_uint_16)(tRNS.red * 257);
- tRNS.blue = (png_uint_16)(tRNS.green * 17);
- }
- }
-
- else
- {
- tRNS.gray = random_u16();
- tRNS.gray &= mask;
- }
-
- png_set_tRNS(pp, pi, NULL, 0, &tRNS);
-}
-#endif
-
-/* The number of passes is related to the interlace type. There was no libpng
- * API to determine this prior to 1.5, so we need an inquiry function:
- */
-static int
-npasses_from_interlace_type(png_const_structp pp, int interlace_type)
-{
- switch (interlace_type)
- {
- default:
- png_error(pp, "invalid interlace type");
-
- case PNG_INTERLACE_NONE:
- return 1;
-
- case PNG_INTERLACE_ADAM7:
- return PNG_INTERLACE_ADAM7_PASSES;
- }
-}
-
-static unsigned int
-bit_size(png_const_structp pp, png_byte colour_type, png_byte bit_depth)
-{
- switch (colour_type)
- {
- default: png_error(pp, "invalid color type");
-
- case 0: return bit_depth;
-
- case 2: return 3*bit_depth;
-
- case 3: return bit_depth;
-
- case 4: return 2*bit_depth;
-
- case 6: return 4*bit_depth;
- }
-}
-
-#define TRANSFORM_WIDTH 128U
-#define TRANSFORM_ROWMAX (TRANSFORM_WIDTH*8U)
-#define SIZE_ROWMAX (16*8U) /* 16 pixels, max 8 bytes each - 128 bytes */
-#define STANDARD_ROWMAX TRANSFORM_ROWMAX /* The larger of the two */
-#define SIZE_HEIGHTMAX 16 /* Maximum range of size images */
-
-static size_t
-transform_rowsize(png_const_structp pp, png_byte colour_type,
- png_byte bit_depth)
-{
- return (TRANSFORM_WIDTH * bit_size(pp, colour_type, bit_depth)) / 8;
-}
-
-/* transform_width(pp, colour_type, bit_depth) current returns the same number
- * every time, so just use a macro:
- */
-#define transform_width(pp, colour_type, bit_depth) TRANSFORM_WIDTH
-
-static png_uint_32
-transform_height(png_const_structp pp, png_byte colour_type, png_byte bit_depth)
-{
- switch (bit_size(pp, colour_type, bit_depth))
- {
- case 1:
- case 2:
- case 4:
- return 1; /* Total of 128 pixels */
-
- case 8:
- return 2; /* Total of 256 pixels/bytes */
-
- case 16:
- return 512; /* Total of 65536 pixels */
-
- case 24:
- case 32:
- return 512; /* 65536 pixels */
-
- case 48:
- case 64:
- return 2048;/* 4 x 65536 pixels. */
-# define TRANSFORM_HEIGHTMAX 2048
-
- default:
- return 0; /* Error, will be caught later */
- }
-}
-
-#ifdef PNG_READ_SUPPORTED
-/* The following can only be defined here, now we have the definitions
- * of the transform image sizes.
- */
-static png_uint_32
-standard_width(png_const_structp pp, png_uint_32 id)
-{
- png_uint_32 width = WIDTH_FROM_ID(id);
- UNUSED(pp)
-
- if (width == 0)
- width = transform_width(pp, COL_FROM_ID(id), DEPTH_FROM_ID(id));
-
- return width;
-}
-
-static png_uint_32
-standard_height(png_const_structp pp, png_uint_32 id)
-{
- png_uint_32 height = HEIGHT_FROM_ID(id);
-
- if (height == 0)
- height = transform_height(pp, COL_FROM_ID(id), DEPTH_FROM_ID(id));
-
- return height;
-}
-
-static png_uint_32
-standard_rowsize(png_const_structp pp, png_uint_32 id)
-{
- png_uint_32 width = standard_width(pp, id);
-
- /* This won't overflow: */
- width *= bit_size(pp, COL_FROM_ID(id), DEPTH_FROM_ID(id));
- return (width + 7) / 8;
-}
-#endif /* PNG_READ_SUPPORTED */
-
-static void
-transform_row(png_const_structp pp, png_byte buffer[TRANSFORM_ROWMAX],
- png_byte colour_type, png_byte bit_depth, png_uint_32 y)
-{
- png_uint_32 v = y << 7;
- png_uint_32 i = 0;
-
- switch (bit_size(pp, colour_type, bit_depth))
- {
- case 1:
- while (i<128/8) buffer[i] = (png_byte)(v & 0xff), v += 17, ++i;
- return;
-
- case 2:
- while (i<128/4) buffer[i] = (png_byte)(v & 0xff), v += 33, ++i;
- return;
-
- case 4:
- while (i<128/2) buffer[i] = (png_byte)(v & 0xff), v += 65, ++i;
- return;
-
- case 8:
- /* 256 bytes total, 128 bytes in each row set as follows: */
- while (i<128) buffer[i] = (png_byte)(v & 0xff), ++v, ++i;
- return;
-
- case 16:
- /* Generate all 65536 pixel values in order, which includes the 8 bit
- * GA case as well as the 16 bit G case.
- */
- while (i<128)
- {
- buffer[2*i] = (png_byte)((v>>8) & 0xff);
- buffer[2*i+1] = (png_byte)(v & 0xff);
- ++v;
- ++i;
- }
-
- return;
-
- case 24:
- /* 65535 pixels, but rotate the values. */
- while (i<128)
- {
- /* Three bytes per pixel, r, g, b, make b by r^g */
- buffer[3*i+0] = (png_byte)((v >> 8) & 0xff);
- buffer[3*i+1] = (png_byte)(v & 0xff);
- buffer[3*i+2] = (png_byte)(((v >> 8) ^ v) & 0xff);
- ++v;
- ++i;
- }
-
- return;
-
- case 32:
- /* 65535 pixels, r, g, b, a; just replicate */
- while (i<128)
- {
- buffer[4*i+0] = (png_byte)((v >> 8) & 0xff);
- buffer[4*i+1] = (png_byte)(v & 0xff);
- buffer[4*i+2] = (png_byte)((v >> 8) & 0xff);
- buffer[4*i+3] = (png_byte)(v & 0xff);
- ++v;
- ++i;
- }
-
- return;
-
- case 48:
- /* y is maximum 2047, giving 4x65536 pixels, make 'r' increase by 1 at
- * each pixel, g increase by 257 (0x101) and 'b' by 0x1111:
- */
- while (i<128)
- {
- png_uint_32 t = v++;
- buffer[6*i+0] = (png_byte)((t >> 8) & 0xff);
- buffer[6*i+1] = (png_byte)(t & 0xff);
- t *= 257;
- buffer[6*i+2] = (png_byte)((t >> 8) & 0xff);
- buffer[6*i+3] = (png_byte)(t & 0xff);
- t *= 17;
- buffer[6*i+4] = (png_byte)((t >> 8) & 0xff);
- buffer[6*i+5] = (png_byte)(t & 0xff);
- ++i;
- }
-
- return;
-
- case 64:
- /* As above in the 32 bit case. */
- while (i<128)
- {
- png_uint_32 t = v++;
- buffer[8*i+0] = (png_byte)((t >> 8) & 0xff);
- buffer[8*i+1] = (png_byte)(t & 0xff);
- buffer[8*i+4] = (png_byte)((t >> 8) & 0xff);
- buffer[8*i+5] = (png_byte)(t & 0xff);
- t *= 257;
- buffer[8*i+2] = (png_byte)((t >> 8) & 0xff);
- buffer[8*i+3] = (png_byte)(t & 0xff);
- buffer[8*i+6] = (png_byte)((t >> 8) & 0xff);
- buffer[8*i+7] = (png_byte)(t & 0xff);
- ++i;
- }
- return;
-
- default:
- break;
- }
-
- png_error(pp, "internal error");
-}
-
-/* This is just to do the right cast - could be changed to a function to check
- * 'bd' but there isn't much point.
- */
-#define DEPTH(bd) ((png_byte)(1U << (bd)))
-
-/* This is just a helper for compiling on minimal systems with no write
- * interlacing support. If there is no write interlacing we can't generate test
- * cases with interlace:
- */
-#ifdef PNG_WRITE_INTERLACING_SUPPORTED
-# define INTERLACE_LAST PNG_INTERLACE_LAST
-# define check_interlace_type(type) ((void)(type))
-# define set_write_interlace_handling(pp,type) png_set_interlace_handling(pp)
-# define do_own_interlace 0
-#elif PNG_LIBPNG_VER < 10700
-# define set_write_interlace_handling(pp,type) (1)
-static void
-check_interlace_type(int const interlace_type)
-{
- /* Prior to 1.7.0 libpng does not support the write of an interlaced image
- * unless PNG_WRITE_INTERLACING_SUPPORTED, even with do_interlace so the
- * code here does the pixel interlace itself, so:
- */
- if (interlace_type != PNG_INTERLACE_NONE)
- {
- /* This is an internal error - --interlace tests should be skipped, not
- * attempted.
- */
- fprintf(stderr, "pngvalid: no interlace support\n");
- exit(99);
- }
-}
-# define INTERLACE_LAST (PNG_INTERLACE_NONE+1)
-# define do_own_interlace 0
-#else /* libpng 1.7+ */
-# define set_write_interlace_handling(pp,type)\
- npasses_from_interlace_type(pp,type)
-# define check_interlace_type(type) ((void)(type))
-# define INTERLACE_LAST PNG_INTERLACE_LAST
-# define do_own_interlace 1
-#endif /* WRITE_INTERLACING tests */
-
-#if PNG_LIBPNG_VER >= 10700 || defined PNG_WRITE_INTERLACING_SUPPORTED
-# define CAN_WRITE_INTERLACE 1
-#else
-# define CAN_WRITE_INTERLACE 0
-#endif
-
-/* Do the same thing for read interlacing; this controls whether read tests do
- * their own de-interlace or use libpng.
- */
-#ifdef PNG_READ_INTERLACING_SUPPORTED
-# define do_read_interlace 0
-#else /* no libpng read interlace support */
-# define do_read_interlace 1
-#endif
-/* The following two routines use the PNG interlace support macros from
- * png.h to interlace or deinterlace rows.
- */
-static void
-interlace_row(png_bytep buffer, png_const_bytep imageRow,
- unsigned int pixel_size, png_uint_32 w, int pass, int littleendian)
-{
- png_uint_32 xin, xout, xstep;
-
- /* Note that this can, trivially, be optimized to a memcpy on pass 7, the
- * code is presented this way to make it easier to understand. In practice
- * consult the code in the libpng source to see other ways of doing this.
- *
- * It is OK for buffer and imageRow to be identical, because 'xin' moves
- * faster than 'xout' and we copy up.
- */
- xin = PNG_PASS_START_COL(pass);
- xstep = 1U<<PNG_PASS_COL_SHIFT(pass);
-
- for (xout=0; xin<w; xin+=xstep)
- {
- pixel_copy(buffer, xout, imageRow, xin, pixel_size, littleendian);
- ++xout;
- }
-}
-
-#ifdef PNG_READ_SUPPORTED
-static void
-deinterlace_row(png_bytep buffer, png_const_bytep row,
- unsigned int pixel_size, png_uint_32 w, int pass, int littleendian)
-{
- /* The inverse of the above, 'row' is part of row 'y' of the output image,
- * in 'buffer'. The image is 'w' wide and this is pass 'pass', distribute
- * the pixels of row into buffer and return the number written (to allow
- * this to be checked).
- */
- png_uint_32 xin, xout, xstep;
-
- xout = PNG_PASS_START_COL(pass);
- xstep = 1U<<PNG_PASS_COL_SHIFT(pass);
-
- for (xin=0; xout<w; xout+=xstep)
- {
- pixel_copy(buffer, xout, row, xin, pixel_size, littleendian);
- ++xin;
- }
-}
-#endif /* PNG_READ_SUPPORTED */
-
-/* Make a standardized image given an image colour type, bit depth and
- * interlace type. The standard images have a very restricted range of
- * rows and heights and are used for testing transforms rather than image
- * layout details. See make_size_images below for a way to make images
- * that test odd sizes along with the libpng interlace handling.
- */
-#ifdef PNG_WRITE_FILTER_SUPPORTED
-static void
-choose_random_filter(png_structp pp, int start)
-{
- /* Choose filters randomly except that on the very first row ensure that
- * there is at least one previous row filter.
- */
- int filters = PNG_ALL_FILTERS & random_mod(256U);
-
- /* There may be no filters; skip the setting. */
- if (filters != 0)
- {
- if (start && filters < PNG_FILTER_UP)
- filters |= PNG_FILTER_UP;
-
- png_set_filter(pp, 0/*method*/, filters);
- }
-}
-#else /* !WRITE_FILTER */
-# define choose_random_filter(pp, start) ((void)0)
-#endif /* !WRITE_FILTER */
-
-static void
-make_transform_image(png_store* const ps, png_byte const colour_type,
- png_byte const bit_depth, unsigned int palette_number,
- int interlace_type, png_const_charp name)
-{
- context(ps, fault);
-
- check_interlace_type(interlace_type);
-
- Try
- {
- png_infop pi;
- png_structp pp = set_store_for_write(ps, &pi, name);
- png_uint_32 h, w;
-
- /* In the event of a problem return control to the Catch statement below
- * to do the clean up - it is not possible to 'return' directly from a Try
- * block.
- */
- if (pp == NULL)
- Throw ps;
-
- w = transform_width(pp, colour_type, bit_depth);
- h = transform_height(pp, colour_type, bit_depth);
-
- png_set_IHDR(pp, pi, w, h, bit_depth, colour_type, interlace_type,
- PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
-
-#ifdef PNG_TEXT_SUPPORTED
-# if defined(PNG_READ_zTXt_SUPPORTED) && defined(PNG_WRITE_zTXt_SUPPORTED)
-# define TEXT_COMPRESSION PNG_TEXT_COMPRESSION_zTXt
-# else
-# define TEXT_COMPRESSION PNG_TEXT_COMPRESSION_NONE
-# endif
- {
- static char key[] = "image name"; /* must be writeable */
- size_t pos;
- png_text text;
- char copy[FILE_NAME_SIZE];
-
- /* Use a compressed text string to test the correct interaction of text
- * compression and IDAT compression.
- */
- text.compression = TEXT_COMPRESSION;
- text.key = key;
- /* Yuck: the text must be writable! */
- pos = safecat(copy, sizeof copy, 0, ps->wname);
- text.text = copy;
- text.text_length = pos;
- text.itxt_length = 0;
- text.lang = 0;
- text.lang_key = 0;
-
- png_set_text(pp, pi, &text, 1);
- }
-#endif
-
- if (colour_type == 3) /* palette */
- init_standard_palette(ps, pp, pi, 1U << bit_depth, 1/*do tRNS*/);
-
-# ifdef PNG_WRITE_tRNS_SUPPORTED
- else if (palette_number)
- set_random_tRNS(pp, pi, colour_type, bit_depth);
-# endif
-
- png_write_info(pp, pi);
-
- if (png_get_rowbytes(pp, pi) !=
- transform_rowsize(pp, colour_type, bit_depth))
- png_error(pp, "transform row size incorrect");
-
- else
- {
- /* Somewhat confusingly this must be called *after* png_write_info
- * because if it is called before, the information in *pp has not been
- * updated to reflect the interlaced image.
- */
- int npasses = set_write_interlace_handling(pp, interlace_type);
- int pass;
-
- if (npasses != npasses_from_interlace_type(pp, interlace_type))
- png_error(pp, "write: png_set_interlace_handling failed");
-
- for (pass=0; pass<npasses; ++pass)
- {
- png_uint_32 y;
-
- /* do_own_interlace is a pre-defined boolean (a #define) which is
- * set if we have to work out the interlaced rows here.
- */
- for (y=0; y<h; ++y)
- {
- png_byte buffer[TRANSFORM_ROWMAX];
-
- transform_row(pp, buffer, colour_type, bit_depth, y);
-
-# if do_own_interlace
- /* If do_own_interlace *and* the image is interlaced we need a
- * reduced interlace row; this may be reduced to empty.
- */
- if (interlace_type == PNG_INTERLACE_ADAM7)
- {
- /* The row must not be written if it doesn't exist, notice
- * that there are two conditions here, either the row isn't
- * ever in the pass or the row would be but isn't wide
- * enough to contribute any pixels. In fact the wPass test
- * can be used to skip the whole y loop in this case.
- */
- if (PNG_ROW_IN_INTERLACE_PASS(y, pass) &&
- PNG_PASS_COLS(w, pass) > 0)
- interlace_row(buffer, buffer,
- bit_size(pp, colour_type, bit_depth), w, pass,
- 0/*data always bigendian*/);
- else
- continue;
- }
-# endif /* do_own_interlace */
-
- choose_random_filter(pp, pass == 0 && y == 0);
- png_write_row(pp, buffer);
- }
- }
- }
-
-#ifdef PNG_TEXT_SUPPORTED
- {
- static char key[] = "end marker";
- static char comment[] = "end";
- png_text text;
-
- /* Use a compressed text string to test the correct interaction of text
- * compression and IDAT compression.
- */
- text.compression = TEXT_COMPRESSION;
- text.key = key;
- text.text = comment;
- text.text_length = (sizeof comment)-1;
- text.itxt_length = 0;
- text.lang = 0;
- text.lang_key = 0;
-
- png_set_text(pp, pi, &text, 1);
- }
-#endif
-
- png_write_end(pp, pi);
-
- /* And store this under the appropriate id, then clean up. */
- store_storefile(ps, FILEID(colour_type, bit_depth, palette_number,
- interlace_type, 0, 0, 0));
-
- store_write_reset(ps);
- }
-
- Catch(fault)
- {
- /* Use the png_store returned by the exception. This may help the compiler
- * because 'ps' is not used in this branch of the setjmp. Note that fault
- * and ps will always be the same value.
- */
- store_write_reset(fault);
- }
-}
-
-static void
-make_transform_images(png_modifier *pm)
-{
- png_byte colour_type = 0;
- png_byte bit_depth = 0;
- unsigned int palette_number = 0;
-
- /* This is in case of errors. */
- safecat(pm->this.test, sizeof pm->this.test, 0, "make standard images");
-
- /* Use next_format to enumerate all the combinations we test, including
- * generating multiple low bit depth palette images. Non-A images (palette
- * and direct) are created with and without tRNS chunks.
- */
- while (next_format(&colour_type, &bit_depth, &palette_number, 1, 1))
- {
- int interlace_type;
-
- for (interlace_type = PNG_INTERLACE_NONE;
- interlace_type < INTERLACE_LAST; ++interlace_type)
- {
- char name[FILE_NAME_SIZE];
-
- standard_name(name, sizeof name, 0, colour_type, bit_depth,
- palette_number, interlace_type, 0, 0, do_own_interlace);
- make_transform_image(&pm->this, colour_type, bit_depth, palette_number,
- interlace_type, name);
- }
- }
-}
-
-/* Build a single row for the 'size' test images; this fills in only the
- * first bit_width bits of the sample row.
- */
-static void
-size_row(png_byte buffer[SIZE_ROWMAX], png_uint_32 bit_width, png_uint_32 y)
-{
- /* height is in the range 1 to 16, so: */
- y = ((y & 1) << 7) + ((y & 2) << 6) + ((y & 4) << 5) + ((y & 8) << 4);
- /* the following ensures bits are set in small images: */
- y ^= 0xA5;
-
- while (bit_width >= 8)
- *buffer++ = (png_byte)y++, bit_width -= 8;
-
- /* There may be up to 7 remaining bits, these go in the most significant
- * bits of the byte.
- */
- if (bit_width > 0)
- {
- png_uint_32 mask = (1U<<(8-bit_width))-1;
- *buffer = (png_byte)((*buffer & mask) | (y & ~mask));
- }
-}
-
-static void
-make_size_image(png_store* const ps, png_byte const colour_type,
- png_byte const bit_depth, int const interlace_type,
- png_uint_32 const w, png_uint_32 const h,
- int const do_interlace)
-{
- context(ps, fault);
-
- check_interlace_type(interlace_type);
-
- Try
- {
- png_infop pi;
- png_structp pp;
- unsigned int pixel_size;
-
- /* Make a name and get an appropriate id for the store: */
- char name[FILE_NAME_SIZE];
- png_uint_32 id = FILEID(colour_type, bit_depth, 0/*palette*/,
- interlace_type, w, h, do_interlace);
-
- standard_name_from_id(name, sizeof name, 0, id);
- pp = set_store_for_write(ps, &pi, name);
-
- /* In the event of a problem return control to the Catch statement below
- * to do the clean up - it is not possible to 'return' directly from a Try
- * block.
- */
- if (pp == NULL)
- Throw ps;
-
- png_set_IHDR(pp, pi, w, h, bit_depth, colour_type, interlace_type,
- PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
-
-#ifdef PNG_TEXT_SUPPORTED
- {
- static char key[] = "image name"; /* must be writeable */
- size_t pos;
- png_text text;
- char copy[FILE_NAME_SIZE];
-
- /* Use a compressed text string to test the correct interaction of text
- * compression and IDAT compression.
- */
- text.compression = TEXT_COMPRESSION;
- text.key = key;
- /* Yuck: the text must be writable! */
- pos = safecat(copy, sizeof copy, 0, ps->wname);
- text.text = copy;
- text.text_length = pos;
- text.itxt_length = 0;
- text.lang = 0;
- text.lang_key = 0;
-
- png_set_text(pp, pi, &text, 1);
- }
-#endif
-
- if (colour_type == 3) /* palette */
- init_standard_palette(ps, pp, pi, 1U << bit_depth, 0/*do tRNS*/);
-
- png_write_info(pp, pi);
-
- /* Calculate the bit size, divide by 8 to get the byte size - this won't
- * overflow because we know the w values are all small enough even for
- * a system where 'unsigned int' is only 16 bits.
- */
- pixel_size = bit_size(pp, colour_type, bit_depth);
- if (png_get_rowbytes(pp, pi) != ((w * pixel_size) + 7) / 8)
- png_error(pp, "size row size incorrect");
-
- else
- {
- int npasses = npasses_from_interlace_type(pp, interlace_type);
- png_uint_32 y;
- int pass;
- png_byte image[16][SIZE_ROWMAX];
-
- /* To help consistent error detection make the parts of this buffer
- * that aren't set below all '1':
- */
- memset(image, 0xff, sizeof image);
-
- if (!do_interlace &&
- npasses != set_write_interlace_handling(pp, interlace_type))
- png_error(pp, "write: png_set_interlace_handling failed");
-
- /* Prepare the whole image first to avoid making it 7 times: */
- for (y=0; y<h; ++y)
- size_row(image[y], w * pixel_size, y);
-
- for (pass=0; pass<npasses; ++pass)
- {
- /* The following two are for checking the macros: */
- png_uint_32 wPass = PNG_PASS_COLS(w, pass);
-
- /* If do_interlace is set we don't call png_write_row for every
- * row because some of them are empty. In fact, for a 1x1 image,
- * most of them are empty!
- */
- for (y=0; y<h; ++y)
- {
- png_const_bytep row = image[y];
- png_byte tempRow[SIZE_ROWMAX];
-
- /* If do_interlace *and* the image is interlaced we
- * need a reduced interlace row; this may be reduced
- * to empty.
- */
- if (do_interlace && interlace_type == PNG_INTERLACE_ADAM7)
- {
- /* The row must not be written if it doesn't exist, notice
- * that there are two conditions here, either the row isn't
- * ever in the pass or the row would be but isn't wide
- * enough to contribute any pixels. In fact the wPass test
- * can be used to skip the whole y loop in this case.
- */
- if (PNG_ROW_IN_INTERLACE_PASS(y, pass) && wPass > 0)
- {
- /* Set to all 1's for error detection (libpng tends to
- * set unset things to 0).
- */
- memset(tempRow, 0xff, sizeof tempRow);
- interlace_row(tempRow, row, pixel_size, w, pass,
- 0/*data always bigendian*/);
- row = tempRow;
- }
- else
- continue;
- }
-
-# ifdef PNG_WRITE_FILTER_SUPPORTED
- /* Only get to here if the row has some pixels in it, set the
- * filters to 'all' for the very first row and thereafter to a
- * single filter. It isn't well documented, but png_set_filter
- * does accept a filter number (per the spec) as well as a bit
- * mask.
- *
- * The code now uses filters at random, except that on the first
- * row of an image it ensures that a previous row filter is in
- * the set so that libpng allocates the row buffer.
- */
- {
- int filters = 8 << random_mod(PNG_FILTER_VALUE_LAST);
-
- if (pass == 0 && y == 0 &&
- (filters < PNG_FILTER_UP || w == 1U))
- filters |= PNG_FILTER_UP;
-
- png_set_filter(pp, 0/*method*/, filters);
- }
-# endif
-
- png_write_row(pp, row);
- }
- }
- }
-
-#ifdef PNG_TEXT_SUPPORTED
- {
- static char key[] = "end marker";
- static char comment[] = "end";
- png_text text;
-
- /* Use a compressed text string to test the correct interaction of text
- * compression and IDAT compression.
- */
- text.compression = TEXT_COMPRESSION;
- text.key = key;
- text.text = comment;
- text.text_length = (sizeof comment)-1;
- text.itxt_length = 0;
- text.lang = 0;
- text.lang_key = 0;
-
- png_set_text(pp, pi, &text, 1);
- }
-#endif
-
- png_write_end(pp, pi);
-
- /* And store this under the appropriate id, then clean up. */
- store_storefile(ps, id);
-
- store_write_reset(ps);
- }
-
- Catch(fault)
- {
- /* Use the png_store returned by the exception. This may help the compiler
- * because 'ps' is not used in this branch of the setjmp. Note that fault
- * and ps will always be the same value.
- */
- store_write_reset(fault);
- }
-}
-
-static void
-make_size(png_store* const ps, png_byte const colour_type, int bdlo,
- int const bdhi)
-{
- for (; bdlo <= bdhi; ++bdlo)
- {
- png_uint_32 width;
-
- for (width = 1; width <= 16; ++width)
- {
- png_uint_32 height;
-
- for (height = 1; height <= 16; ++height)
- {
- /* The four combinations of DIY interlace and interlace or not -
- * no interlace + DIY should be identical to no interlace with
- * libpng doing it.
- */
- make_size_image(ps, colour_type, DEPTH(bdlo), PNG_INTERLACE_NONE,
- width, height, 0);
- make_size_image(ps, colour_type, DEPTH(bdlo), PNG_INTERLACE_NONE,
- width, height, 1);
-# ifdef PNG_WRITE_INTERLACING_SUPPORTED
- make_size_image(ps, colour_type, DEPTH(bdlo), PNG_INTERLACE_ADAM7,
- width, height, 0);
-# endif
-# if CAN_WRITE_INTERLACE
- /* 1.7.0 removes the hack that prevented app write of an interlaced
- * image if WRITE_INTERLACE was not supported
- */
- make_size_image(ps, colour_type, DEPTH(bdlo), PNG_INTERLACE_ADAM7,
- width, height, 1);
-# endif
- }
- }
- }
-}
-
-static void
-make_size_images(png_store *ps)
-{
- /* This is in case of errors. */
- safecat(ps->test, sizeof ps->test, 0, "make size images");
-
- /* Arguments are colour_type, low bit depth, high bit depth
- */
- make_size(ps, 0, 0, WRITE_BDHI);
- make_size(ps, 2, 3, WRITE_BDHI);
- make_size(ps, 3, 0, 3 /*palette: max 8 bits*/);
- make_size(ps, 4, 3, WRITE_BDHI);
- make_size(ps, 6, 3, WRITE_BDHI);
-}
-
-#ifdef PNG_READ_SUPPORTED
-/* Return a row based on image id and 'y' for checking: */
-static void
-standard_row(png_const_structp pp, png_byte std[STANDARD_ROWMAX],
- png_uint_32 id, png_uint_32 y)
-{
- if (WIDTH_FROM_ID(id) == 0)
- transform_row(pp, std, COL_FROM_ID(id), DEPTH_FROM_ID(id), y);
- else
- size_row(std, WIDTH_FROM_ID(id) * bit_size(pp, COL_FROM_ID(id),
- DEPTH_FROM_ID(id)), y);
-}
-#endif /* PNG_READ_SUPPORTED */
-
-/* Tests - individual test cases */
-/* Like 'make_standard' but errors are deliberately introduced into the calls
- * to ensure that they get detected - it should not be possible to write an
- * invalid image with libpng!
- */
-/* TODO: the 'set' functions can probably all be made to take a
- * png_const_structp rather than a modifiable one.
- */
-#ifdef PNG_WARNINGS_SUPPORTED
-static void
-sBIT0_error_fn(png_structp pp, png_infop pi)
-{
- /* 0 is invalid... */
- png_color_8 bad;
- bad.red = bad.green = bad.blue = bad.gray = bad.alpha = 0;
- png_set_sBIT(pp, pi, &bad);
-}
-
-static void
-sBIT_error_fn(png_structp pp, png_infop pi)
-{
- png_byte bit_depth;
- png_color_8 bad;
-
- if (png_get_color_type(pp, pi) == PNG_COLOR_TYPE_PALETTE)
- bit_depth = 8;
-
- else
- bit_depth = png_get_bit_depth(pp, pi);
-
- /* Now we know the bit depth we can easily generate an invalid sBIT entry */
- bad.red = bad.green = bad.blue = bad.gray = bad.alpha =
- (png_byte)(bit_depth+1);
- png_set_sBIT(pp, pi, &bad);
-}
-
-static const struct
-{
- void (*fn)(png_structp, png_infop);
- const char *msg;
- unsigned int warning :1; /* the error is a warning... */
-} error_test[] =
- {
- /* no warnings makes these errors undetectable prior to 1.7.0 */
- { sBIT0_error_fn, "sBIT(0): failed to detect error",
- PNG_LIBPNG_VER < 10700 },
-
- { sBIT_error_fn, "sBIT(too big): failed to detect error",
- PNG_LIBPNG_VER < 10700 },
- };
-
-static void
-make_error(png_store* const ps, png_byte const colour_type,
- png_byte bit_depth, int interlace_type, int test, png_const_charp name)
-{
- context(ps, fault);
-
- check_interlace_type(interlace_type);
-
- Try
- {
- png_infop pi;
- png_structp pp = set_store_for_write(ps, &pi, name);
- png_uint_32 w, h;
- gnu_volatile(pp)
-
- if (pp == NULL)
- Throw ps;
-
- w = transform_width(pp, colour_type, bit_depth);
- gnu_volatile(w)
- h = transform_height(pp, colour_type, bit_depth);
- gnu_volatile(h)
- png_set_IHDR(pp, pi, w, h, bit_depth, colour_type, interlace_type,
- PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
-
- if (colour_type == 3) /* palette */
- init_standard_palette(ps, pp, pi, 1U << bit_depth, 0/*do tRNS*/);
-
- /* Time for a few errors; these are in various optional chunks, the
- * standard tests test the standard chunks pretty well.
- */
-# define exception__prev exception_prev_1
-# define exception__env exception_env_1
- Try
- {
- gnu_volatile(exception__prev)
-
- /* Expect this to throw: */
- ps->expect_error = !error_test[test].warning;
- ps->expect_warning = error_test[test].warning;
- ps->saw_warning = 0;
- error_test[test].fn(pp, pi);
-
- /* Normally the error is only detected here: */
- png_write_info(pp, pi);
-
- /* And handle the case where it was only a warning: */
- if (ps->expect_warning && ps->saw_warning)
- Throw ps;
-
- /* If we get here there is a problem, we have success - no error or
- * no warning - when we shouldn't have success. Log an error.
- */
- store_log(ps, pp, error_test[test].msg, 1 /*error*/);
- }
-
- Catch (fault)
- { /* expected exit */
- }
-#undef exception__prev
-#undef exception__env
-
- /* And clear these flags */
- ps->expect_warning = 0;
-
- if (ps->expect_error)
- ps->expect_error = 0;
-
- else
- {
- /* Now write the whole image, just to make sure that the detected, or
- * undetected, error has not created problems inside libpng. This
- * doesn't work if there was a png_error in png_write_info because that
- * can abort before PLTE was written.
- */
- if (png_get_rowbytes(pp, pi) !=
- transform_rowsize(pp, colour_type, bit_depth))
- png_error(pp, "row size incorrect");
-
- else
- {
- int npasses = set_write_interlace_handling(pp, interlace_type);
- int pass;
-
- if (npasses != npasses_from_interlace_type(pp, interlace_type))
- png_error(pp, "write: png_set_interlace_handling failed");
-
- for (pass=0; pass<npasses; ++pass)
- {
- png_uint_32 y;
-
- for (y=0; y<h; ++y)
- {
- png_byte buffer[TRANSFORM_ROWMAX];
-
- transform_row(pp, buffer, colour_type, bit_depth, y);
-
-# if do_own_interlace
- /* If do_own_interlace *and* the image is interlaced we
- * need a reduced interlace row; this may be reduced to
- * empty.
- */
- if (interlace_type == PNG_INTERLACE_ADAM7)
- {
- /* The row must not be written if it doesn't exist,
- * notice that there are two conditions here, either the
- * row isn't ever in the pass or the row would be but
- * isn't wide enough to contribute any pixels. In fact
- * the wPass test can be used to skip the whole y loop
- * in this case.
- */
- if (PNG_ROW_IN_INTERLACE_PASS(y, pass) &&
- PNG_PASS_COLS(w, pass) > 0)
- interlace_row(buffer, buffer,
- bit_size(pp, colour_type, bit_depth), w, pass,
- 0/*data always bigendian*/);
- else
- continue;
- }
-# endif /* do_own_interlace */
-
- png_write_row(pp, buffer);
- }
- }
- } /* image writing */
-
- png_write_end(pp, pi);
- }
-
- /* The following deletes the file that was just written. */
- store_write_reset(ps);
- }
-
- Catch(fault)
- {
- store_write_reset(fault);
- }
-}
-
-static int
-make_errors(png_modifier* const pm, png_byte const colour_type,
- int bdlo, int const bdhi)
-{
- for (; bdlo <= bdhi; ++bdlo)
- {
- int interlace_type;
-
- for (interlace_type = PNG_INTERLACE_NONE;
- interlace_type < INTERLACE_LAST; ++interlace_type)
- {
- unsigned int test;
- char name[FILE_NAME_SIZE];
-
- standard_name(name, sizeof name, 0, colour_type, 1<<bdlo, 0,
- interlace_type, 0, 0, do_own_interlace);
-
- for (test=0; test<ARRAY_SIZE(error_test); ++test)
- {
- make_error(&pm->this, colour_type, DEPTH(bdlo), interlace_type,
- test, name);
-
- if (fail(pm))
- return 0;
- }
- }
- }
-
- return 1; /* keep going */
-}
-#endif /* PNG_WARNINGS_SUPPORTED */
-
-static void
-perform_error_test(png_modifier *pm)
-{
-#ifdef PNG_WARNINGS_SUPPORTED /* else there are no cases that work! */
- /* Need to do this here because we just write in this test. */
- safecat(pm->this.test, sizeof pm->this.test, 0, "error test");
-
- if (!make_errors(pm, 0, 0, WRITE_BDHI))
- return;
-
- if (!make_errors(pm, 2, 3, WRITE_BDHI))
- return;
-
- if (!make_errors(pm, 3, 0, 3))
- return;
-
- if (!make_errors(pm, 4, 3, WRITE_BDHI))
- return;
-
- if (!make_errors(pm, 6, 3, WRITE_BDHI))
- return;
-#else
- UNUSED(pm)
-#endif
-}
-
-/* This is just to validate the internal PNG formatting code - if this fails
- * then the warning messages the library outputs will probably be garbage.
- */
-static void
-perform_formatting_test(png_store *ps)
-{
-#ifdef PNG_TIME_RFC1123_SUPPORTED
- /* The handle into the formatting code is the RFC1123 support; this test does
- * nothing if that is compiled out.
- */
- context(ps, fault);
-
- Try
- {
- png_const_charp correct = "29 Aug 2079 13:53:60 +0000";
- png_const_charp result;
-# if PNG_LIBPNG_VER >= 10600
- char timestring[29];
-# endif
- png_structp pp;
- png_time pt;
-
- pp = set_store_for_write(ps, NULL, "libpng formatting test");
-
- if (pp == NULL)
- Throw ps;
-
-
- /* Arbitrary settings: */
- pt.year = 2079;
- pt.month = 8;
- pt.day = 29;
- pt.hour = 13;
- pt.minute = 53;
- pt.second = 60; /* a leap second */
-
-# if PNG_LIBPNG_VER < 10600
- result = png_convert_to_rfc1123(pp, &pt);
-# else
- if (png_convert_to_rfc1123_buffer(timestring, &pt))
- result = timestring;
-
- else
- result = NULL;
-# endif
-
- if (result == NULL)
- png_error(pp, "png_convert_to_rfc1123 failed");
-
- if (strcmp(result, correct) != 0)
- {
- size_t pos = 0;
- char msg[128];
-
- pos = safecat(msg, sizeof msg, pos, "png_convert_to_rfc1123(");
- pos = safecat(msg, sizeof msg, pos, correct);
- pos = safecat(msg, sizeof msg, pos, ") returned: '");
- pos = safecat(msg, sizeof msg, pos, result);
- pos = safecat(msg, sizeof msg, pos, "'");
-
- png_error(pp, msg);
- }
-
- store_write_reset(ps);
- }
-
- Catch(fault)
- {
- store_write_reset(fault);
- }
-#else
- UNUSED(ps)
-#endif
-}
-
-#ifdef PNG_READ_SUPPORTED
-/* Because we want to use the same code in both the progressive reader and the
- * sequential reader it is necessary to deal with the fact that the progressive
- * reader callbacks only have one parameter (png_get_progressive_ptr()), so this
- * must contain all the test parameters and all the local variables directly
- * accessible to the sequential reader implementation.
- *
- * The technique adopted is to reinvent part of what Dijkstra termed a
- * 'display'; an array of pointers to the stack frames of enclosing functions so
- * that a nested function definition can access the local (C auto) variables of
- * the functions that contain its definition. In fact C provides the first
- * pointer (the local variables - the stack frame pointer) and the last (the
- * global variables - the BCPL global vector typically implemented as global
- * addresses), this code requires one more pointer to make the display - the
- * local variables (and function call parameters) of the function that actually
- * invokes either the progressive or sequential reader.
- *
- * Perhaps confusingly this technique is confounded with classes - the
- * 'standard_display' defined here is sub-classed as the 'gamma_display' below.
- * A gamma_display is a standard_display, taking advantage of the ANSI-C
- * requirement that the pointer to the first member of a structure must be the
- * same as the pointer to the structure. This allows us to reuse standard_
- * functions in the gamma test code; something that could not be done with
- * nested functions!
- */
-typedef struct standard_display
-{
- png_store* ps; /* Test parameters (passed to the function) */
- png_byte colour_type;
- png_byte bit_depth;
- png_byte red_sBIT; /* Input data sBIT values. */
- png_byte green_sBIT;
- png_byte blue_sBIT;
- png_byte alpha_sBIT;
- png_byte interlace_type;
- png_byte filler; /* Output has a filler */
- png_uint_32 id; /* Calculated file ID */
- png_uint_32 w; /* Width of image */
- png_uint_32 h; /* Height of image */
- int npasses; /* Number of interlaced passes */
- png_uint_32 pixel_size; /* Width of one pixel in bits */
- png_uint_32 bit_width; /* Width of output row in bits */
- size_t cbRow; /* Bytes in a row of the output image */
- int do_interlace; /* Do interlacing internally */
- int littleendian; /* App (row) data is little endian */
- int is_transparent; /* Transparency information was present. */
- int has_tRNS; /* color type GRAY or RGB with a tRNS chunk. */
- int speed; /* Doing a speed test */
- int use_update_info;/* Call update_info, not start_image */
- struct
- {
- png_uint_16 red;
- png_uint_16 green;
- png_uint_16 blue;
- } transparent; /* The transparent color, if set. */
- int npalette; /* Number of entries in the palette. */
- store_palette
- palette;
-} standard_display;
-
-static void
-standard_display_init(standard_display *dp, png_store* ps, png_uint_32 id,
- int do_interlace, int use_update_info)
-{
- memset(dp, 0, sizeof *dp);
-
- dp->ps = ps;
- dp->colour_type = COL_FROM_ID(id);
- dp->bit_depth = DEPTH_FROM_ID(id);
- if (dp->bit_depth < 1 || dp->bit_depth > 16)
- internal_error(ps, "internal: bad bit depth");
- if (dp->colour_type == 3)
- dp->red_sBIT = dp->blue_sBIT = dp->green_sBIT = dp->alpha_sBIT = 8;
- else
- dp->red_sBIT = dp->blue_sBIT = dp->green_sBIT = dp->alpha_sBIT =
- dp->bit_depth;
- dp->interlace_type = INTERLACE_FROM_ID(id);
- check_interlace_type(dp->interlace_type);
- dp->id = id;
- /* All the rest are filled in after the read_info: */
- dp->w = 0;
- dp->h = 0;
- dp->npasses = 0;
- dp->pixel_size = 0;
- dp->bit_width = 0;
- dp->cbRow = 0;
- dp->do_interlace = do_interlace;
- dp->littleendian = 0;
- dp->is_transparent = 0;
- dp->speed = ps->speed;
- dp->use_update_info = use_update_info;
- dp->npalette = 0;
- /* Preset the transparent color to black: */
- memset(&dp->transparent, 0, sizeof dp->transparent);
- /* Preset the palette to full intensity/opaque throughout: */
- memset(dp->palette, 0xff, sizeof dp->palette);
-}
-
-/* Initialize the palette fields - this must be done later because the palette
- * comes from the particular png_store_file that is selected.
- */
-static void
-standard_palette_init(standard_display *dp)
-{
- store_palette_entry *palette = store_current_palette(dp->ps, &dp->npalette);
-
- /* The remaining entries remain white/opaque. */
- if (dp->npalette > 0)
- {
- int i = dp->npalette;
- memcpy(dp->palette, palette, i * sizeof *palette);
-
- /* Check for a non-opaque palette entry: */
- while (--i >= 0)
- if (palette[i].alpha < 255)
- break;
-
-# ifdef __GNUC__
- /* GCC can't handle the more obviously optimizable version. */
- if (i >= 0)
- dp->is_transparent = 1;
- else
- dp->is_transparent = 0;
-# else
- dp->is_transparent = (i >= 0);
-# endif
- }
-}
-
-/* Utility to read the palette from the PNG file and convert it into
- * store_palette format. This returns 1 if there is any transparency in the
- * palette (it does not check for a transparent colour in the non-palette case.)
- */
-static int
-read_palette(store_palette palette, int *npalette, png_const_structp pp,
- png_infop pi)
-{
- png_colorp pal;
- png_bytep trans_alpha;
- int num;
-
- pal = 0;
- *npalette = -1;
-
- if (png_get_PLTE(pp, pi, &pal, npalette) & PNG_INFO_PLTE)
- {
- int i = *npalette;
-
- if (i <= 0 || i > 256)
- png_error(pp, "validate: invalid PLTE count");
-
- while (--i >= 0)
- {
- palette[i].red = pal[i].red;
- palette[i].green = pal[i].green;
- palette[i].blue = pal[i].blue;
- }
-
- /* Mark the remainder of the entries with a flag value (other than
- * white/opaque which is the flag value stored above.)
- */
- memset(palette + *npalette, 126, (256-*npalette) * sizeof *palette);
- }
-
- else /* !png_get_PLTE */
- {
- if (*npalette != (-1))
- png_error(pp, "validate: invalid PLTE result");
- /* But there is no palette, so record this: */
- *npalette = 0;
- memset(palette, 113, sizeof (store_palette));
- }
-
- trans_alpha = 0;
- num = 2; /* force error below */
- if ((png_get_tRNS(pp, pi, &trans_alpha, &num, 0) & PNG_INFO_tRNS) != 0 &&
- (trans_alpha != NULL || num != 1/*returns 1 for a transparent color*/) &&
- /* Oops, if a palette tRNS gets expanded png_read_update_info (at least so
- * far as 1.5.4) does not remove the trans_alpha pointer, only num_trans,
- * so in the above call we get a success, we get a pointer (who knows what
- * to) and we get num_trans == 0:
- */
- !(trans_alpha != NULL && num == 0)) /* TODO: fix this in libpng. */
- {
- int i;
-
- /* Any of these are crash-worthy - given the implementation of
- * png_get_tRNS up to 1.5 an app won't crash if it just checks the
- * result above and fails to check that the variables it passed have
- * actually been filled in! Note that if the app were to pass the
- * last, png_color_16p, variable too it couldn't rely on this.
- */
- if (trans_alpha == NULL || num <= 0 || num > 256 || num > *npalette)
- png_error(pp, "validate: unexpected png_get_tRNS (palette) result");
-
- for (i=0; i<num; ++i)
- palette[i].alpha = trans_alpha[i];
-
- for (num=*npalette; i<num; ++i)
- palette[i].alpha = 255;
-
- for (; i<256; ++i)
- palette[i].alpha = 33; /* flag value */
-
- return 1; /* transparency */
- }
-
- else
- {
- /* No palette transparency - just set the alpha channel to opaque. */
- int i;
-
- for (i=0, num=*npalette; i<num; ++i)
- palette[i].alpha = 255;
-
- for (; i<256; ++i)
- palette[i].alpha = 55; /* flag value */
-
- return 0; /* no transparency */
- }
-}
-
-/* Utility to validate the palette if it should not have changed (the
- * non-transform case).
- */
-static void
-standard_palette_validate(standard_display *dp, png_const_structp pp,
- png_infop pi)
-{
- int npalette;
- store_palette palette;
-
- if (read_palette(palette, &npalette, pp, pi) != dp->is_transparent)
- png_error(pp, "validate: palette transparency changed");
-
- if (npalette != dp->npalette)
- {
- size_t pos = 0;
- char msg[64];
-
- pos = safecat(msg, sizeof msg, pos, "validate: palette size changed: ");
- pos = safecatn(msg, sizeof msg, pos, dp->npalette);
- pos = safecat(msg, sizeof msg, pos, " -> ");
- pos = safecatn(msg, sizeof msg, pos, npalette);
- png_error(pp, msg);
- }
-
- {
- int i = npalette; /* npalette is aliased */
-
- while (--i >= 0)
- if (palette[i].red != dp->palette[i].red ||
- palette[i].green != dp->palette[i].green ||
- palette[i].blue != dp->palette[i].blue ||
- palette[i].alpha != dp->palette[i].alpha)
- png_error(pp, "validate: PLTE or tRNS chunk changed");
- }
-}
-
-/* By passing a 'standard_display' the progressive callbacks can be used
- * directly by the sequential code, the functions suffixed "_imp" are the
- * implementations, the functions without the suffix are the callbacks.
- *
- * The code for the info callback is split into two because this callback calls
- * png_read_update_info or png_start_read_image and what gets called depends on
- * whether the info needs updating (we want to test both calls in pngvalid.)
- */
-static void
-standard_info_part1(standard_display *dp, png_structp pp, png_infop pi)
-{
- if (png_get_bit_depth(pp, pi) != dp->bit_depth)
- png_error(pp, "validate: bit depth changed");
-
- if (png_get_color_type(pp, pi) != dp->colour_type)
- png_error(pp, "validate: color type changed");
-
- if (png_get_filter_type(pp, pi) != PNG_FILTER_TYPE_BASE)
- png_error(pp, "validate: filter type changed");
-
- if (png_get_interlace_type(pp, pi) != dp->interlace_type)
- png_error(pp, "validate: interlacing changed");
-
- if (png_get_compression_type(pp, pi) != PNG_COMPRESSION_TYPE_BASE)
- png_error(pp, "validate: compression type changed");
-
- dp->w = png_get_image_width(pp, pi);
-
- if (dp->w != standard_width(pp, dp->id))
- png_error(pp, "validate: image width changed");
-
- dp->h = png_get_image_height(pp, pi);
-
- if (dp->h != standard_height(pp, dp->id))
- png_error(pp, "validate: image height changed");
-
- /* Record (but don't check at present) the input sBIT according to the colour
- * type information.
- */
- {
- png_color_8p sBIT = 0;
-
- if (png_get_sBIT(pp, pi, &sBIT) & PNG_INFO_sBIT)
- {
- int sBIT_invalid = 0;
-
- if (sBIT == 0)
- png_error(pp, "validate: unexpected png_get_sBIT result");
-
- if (dp->colour_type & PNG_COLOR_MASK_COLOR)
- {
- if (sBIT->red == 0 || sBIT->red > dp->bit_depth)
- sBIT_invalid = 1;
- else
- dp->red_sBIT = sBIT->red;
-
- if (sBIT->green == 0 || sBIT->green > dp->bit_depth)
- sBIT_invalid = 1;
- else
- dp->green_sBIT = sBIT->green;
-
- if (sBIT->blue == 0 || sBIT->blue > dp->bit_depth)
- sBIT_invalid = 1;
- else
- dp->blue_sBIT = sBIT->blue;
- }
-
- else /* !COLOR */
- {
- if (sBIT->gray == 0 || sBIT->gray > dp->bit_depth)
- sBIT_invalid = 1;
- else
- dp->blue_sBIT = dp->green_sBIT = dp->red_sBIT = sBIT->gray;
- }
-
- /* All 8 bits in tRNS for a palette image are significant - see the
- * spec.
- */
- if (dp->colour_type & PNG_COLOR_MASK_ALPHA)
- {
- if (sBIT->alpha == 0 || sBIT->alpha > dp->bit_depth)
- sBIT_invalid = 1;
- else
- dp->alpha_sBIT = sBIT->alpha;
- }
-
- if (sBIT_invalid)
- png_error(pp, "validate: sBIT value out of range");
- }
- }
-
- /* Important: this is validating the value *before* any transforms have been
- * put in place. It doesn't matter for the standard tests, where there are
- * no transforms, but it does for other tests where rowbytes may change after
- * png_read_update_info.
- */
- if (png_get_rowbytes(pp, pi) != standard_rowsize(pp, dp->id))
- png_error(pp, "validate: row size changed");
-
- /* Validate the colour type 3 palette (this can be present on other color
- * types.)
- */
- standard_palette_validate(dp, pp, pi);
-
- /* In any case always check for a transparent color (notice that the
- * colour type 3 case must not give a successful return on the get_tRNS call
- * with these arguments!)
- */
- {
- png_color_16p trans_color = 0;
-
- if (png_get_tRNS(pp, pi, 0, 0, &trans_color) & PNG_INFO_tRNS)
- {
- if (trans_color == 0)
- png_error(pp, "validate: unexpected png_get_tRNS (color) result");
-
- switch (dp->colour_type)
- {
- case 0:
- dp->transparent.red = dp->transparent.green = dp->transparent.blue =
- trans_color->gray;
- dp->has_tRNS = 1;
- break;
-
- case 2:
- dp->transparent.red = trans_color->red;
- dp->transparent.green = trans_color->green;
- dp->transparent.blue = trans_color->blue;
- dp->has_tRNS = 1;
- break;
-
- case 3:
- /* Not expected because it should result in the array case
- * above.
- */
- png_error(pp, "validate: unexpected png_get_tRNS result");
- break;
-
- default:
- png_error(pp, "validate: invalid tRNS chunk with alpha image");
- }
- }
- }
-
- /* Read the number of passes - expected to match the value used when
- * creating the image (interlaced or not). This has the side effect of
- * turning on interlace handling (if do_interlace is not set.)
- */
- dp->npasses = npasses_from_interlace_type(pp, dp->interlace_type);
- if (!dp->do_interlace)
- {
-# ifdef PNG_READ_INTERLACING_SUPPORTED
- if (dp->npasses != png_set_interlace_handling(pp))
- png_error(pp, "validate: file changed interlace type");
-# else /* !READ_INTERLACING */
- /* This should never happen: the relevant tests (!do_interlace) should
- * not be run.
- */
- if (dp->npasses > 1)
- png_error(pp, "validate: no libpng interlace support");
-# endif /* !READ_INTERLACING */
- }
-
- /* Caller calls png_read_update_info or png_start_read_image now, then calls
- * part2.
- */
-}
-
-/* This must be called *after* the png_read_update_info call to get the correct
- * 'rowbytes' value, otherwise png_get_rowbytes will refer to the untransformed
- * image.
- */
-static void
-standard_info_part2(standard_display *dp, png_const_structp pp,
- png_const_infop pi, int nImages)
-{
- /* Record cbRow now that it can be found. */
- {
- png_byte ct = png_get_color_type(pp, pi);
- png_byte bd = png_get_bit_depth(pp, pi);
-
- if (bd >= 8 && (ct == PNG_COLOR_TYPE_RGB || ct == PNG_COLOR_TYPE_GRAY) &&
- dp->filler)
- ct |= 4; /* handle filler as faked alpha channel */
-
- dp->pixel_size = bit_size(pp, ct, bd);
- }
- dp->bit_width = png_get_image_width(pp, pi) * dp->pixel_size;
- dp->cbRow = png_get_rowbytes(pp, pi);
-
- /* Validate the rowbytes here again. */
- if (dp->cbRow != (dp->bit_width+7)/8)
- png_error(pp, "bad png_get_rowbytes calculation");
-
- /* Then ensure there is enough space for the output image(s). */
- store_ensure_image(dp->ps, pp, nImages, dp->cbRow, dp->h);
-}
-
-static void
-standard_info_imp(standard_display *dp, png_structp pp, png_infop pi,
- int nImages)
-{
- /* Note that the validation routine has the side effect of turning on
- * interlace handling in the subsequent code.
- */
- standard_info_part1(dp, pp, pi);
-
- /* And the info callback has to call this (or png_read_update_info - see
- * below in the png_modifier code for that variant.
- */
- if (dp->use_update_info)
- {
- /* For debugging the effect of multiple calls: */
- int i = dp->use_update_info;
- while (i-- > 0)
- png_read_update_info(pp, pi);
- }
-
- else
- png_start_read_image(pp);
-
- /* Validate the height, width and rowbytes plus ensure that sufficient buffer
- * exists for decoding the image.
- */
- standard_info_part2(dp, pp, pi, nImages);
-}
-
-static void PNGCBAPI
-standard_info(png_structp pp, png_infop pi)
-{
- standard_display *dp = voidcast(standard_display*,
- png_get_progressive_ptr(pp));
-
- /* Call with nImages==1 because the progressive reader can only produce one
- * image.
- */
- standard_info_imp(dp, pp, pi, 1 /*only one image*/);
-}
-
-static void PNGCBAPI
-progressive_row(png_structp ppIn, png_bytep new_row, png_uint_32 y, int pass)
-{
- png_const_structp pp = ppIn;
- const standard_display *dp = voidcast(standard_display*,
- png_get_progressive_ptr(pp));
-
- /* When handling interlacing some rows will be absent in each pass, the
- * callback still gets called, but with a NULL pointer. This is checked
- * in the 'else' clause below. We need our own 'cbRow', but we can't call
- * png_get_rowbytes because we got no info structure.
- */
- if (new_row != NULL)
- {
- png_bytep row;
-
- /* In the case where the reader doesn't do the interlace it gives
- * us the y in the sub-image:
- */
- if (dp->do_interlace && dp->interlace_type == PNG_INTERLACE_ADAM7)
- {
-#ifdef PNG_USER_TRANSFORM_INFO_SUPPORTED
- /* Use this opportunity to validate the png 'current' APIs: */
- if (y != png_get_current_row_number(pp))
- png_error(pp, "png_get_current_row_number is broken");
-
- if (pass != png_get_current_pass_number(pp))
- png_error(pp, "png_get_current_pass_number is broken");
-#endif /* USER_TRANSFORM_INFO */
-
- y = PNG_ROW_FROM_PASS_ROW(y, pass);
- }
-
- /* Validate this just in case. */
- if (y >= dp->h)
- png_error(pp, "invalid y to progressive row callback");
-
- row = store_image_row(dp->ps, pp, 0, y);
-
- /* Combine the new row into the old: */
-#ifdef PNG_READ_INTERLACING_SUPPORTED
- if (dp->do_interlace)
-#endif /* READ_INTERLACING */
- {
- if (dp->interlace_type == PNG_INTERLACE_ADAM7)
- deinterlace_row(row, new_row, dp->pixel_size, dp->w, pass,
- dp->littleendian);
- else
- row_copy(row, new_row, dp->pixel_size * dp->w, dp->littleendian);
- }
-#ifdef PNG_READ_INTERLACING_SUPPORTED
- else
- png_progressive_combine_row(pp, row, new_row);
-#endif /* PNG_READ_INTERLACING_SUPPORTED */
- }
-
- else if (dp->interlace_type == PNG_INTERLACE_ADAM7 &&
- PNG_ROW_IN_INTERLACE_PASS(y, pass) &&
- PNG_PASS_COLS(dp->w, pass) > 0)
- png_error(pp, "missing row in progressive de-interlacing");
-}
-
-static void
-sequential_row(standard_display *dp, png_structp pp, png_infop pi,
- int iImage, int iDisplay)
-{
- int npasses = dp->npasses;
- int do_interlace = dp->do_interlace &&
- dp->interlace_type == PNG_INTERLACE_ADAM7;
- png_uint_32 height = standard_height(pp, dp->id);
- png_uint_32 width = standard_width(pp, dp->id);
- const png_store* ps = dp->ps;
- int pass;
-
- for (pass=0; pass<npasses; ++pass)
- {
- png_uint_32 y;
- png_uint_32 wPass = PNG_PASS_COLS(width, pass);
-
- for (y=0; y<height; ++y)
- {
- if (do_interlace)
- {
- /* wPass may be zero or this row may not be in this pass.
- * png_read_row must not be called in either case.
- */
- if (wPass > 0 && PNG_ROW_IN_INTERLACE_PASS(y, pass))
- {
- /* Read the row into a pair of temporary buffers, then do the
- * merge here into the output rows.
- */
- png_byte row[STANDARD_ROWMAX], display[STANDARD_ROWMAX];
-
- /* The following aids (to some extent) error detection - we can
- * see where png_read_row wrote. Use opposite values in row and
- * display to make this easier. Don't use 0xff (which is used in
- * the image write code to fill unused bits) or 0 (which is a
- * likely value to overwrite unused bits with).
- */
- memset(row, 0xc5, sizeof row);
- memset(display, 0x5c, sizeof display);
-
- png_read_row(pp, row, display);
-
- if (iImage >= 0)
- deinterlace_row(store_image_row(ps, pp, iImage, y), row,
- dp->pixel_size, dp->w, pass, dp->littleendian);
-
- if (iDisplay >= 0)
- deinterlace_row(store_image_row(ps, pp, iDisplay, y), display,
- dp->pixel_size, dp->w, pass, dp->littleendian);
- }
- }
- else
- png_read_row(pp,
- iImage >= 0 ? store_image_row(ps, pp, iImage, y) : NULL,
- iDisplay >= 0 ? store_image_row(ps, pp, iDisplay, y) : NULL);
- }
- }
-
- /* And finish the read operation (only really necessary if the caller wants
- * to find additional data in png_info from chunks after the last IDAT.)
- */
- png_read_end(pp, pi);
-}
-
-#ifdef PNG_TEXT_SUPPORTED
-static void
-standard_check_text(png_const_structp pp, png_const_textp tp,
- png_const_charp keyword, png_const_charp text)
-{
- char msg[1024];
- size_t pos = safecat(msg, sizeof msg, 0, "text: ");
- size_t ok;
-
- pos = safecat(msg, sizeof msg, pos, keyword);
- pos = safecat(msg, sizeof msg, pos, ": ");
- ok = pos;
-
- if (tp->compression != TEXT_COMPRESSION)
- {
- char buf[64];
-
- sprintf(buf, "compression [%d->%d], ", TEXT_COMPRESSION,
- tp->compression);
- pos = safecat(msg, sizeof msg, pos, buf);
- }
-
- if (tp->key == NULL || strcmp(tp->key, keyword) != 0)
- {
- pos = safecat(msg, sizeof msg, pos, "keyword \"");
- if (tp->key != NULL)
- {
- pos = safecat(msg, sizeof msg, pos, tp->key);
- pos = safecat(msg, sizeof msg, pos, "\", ");
- }
-
- else
- pos = safecat(msg, sizeof msg, pos, "null, ");
- }
-
- if (tp->text == NULL)
- pos = safecat(msg, sizeof msg, pos, "text lost, ");
-
- else
- {
- if (tp->text_length != strlen(text))
- {
- char buf[64];
- sprintf(buf, "text length changed[%lu->%lu], ",
- (unsigned long)strlen(text), (unsigned long)tp->text_length);
- pos = safecat(msg, sizeof msg, pos, buf);
- }
-
- if (strcmp(tp->text, text) != 0)
- {
- pos = safecat(msg, sizeof msg, pos, "text becomes \"");
- pos = safecat(msg, sizeof msg, pos, tp->text);
- pos = safecat(msg, sizeof msg, pos, "\" (was \"");
- pos = safecat(msg, sizeof msg, pos, text);
- pos = safecat(msg, sizeof msg, pos, "\"), ");
- }
- }
-
- if (tp->itxt_length != 0)
- pos = safecat(msg, sizeof msg, pos, "iTXt length set, ");
-
- if (tp->lang != NULL)
- {
- pos = safecat(msg, sizeof msg, pos, "iTXt language \"");
- pos = safecat(msg, sizeof msg, pos, tp->lang);
- pos = safecat(msg, sizeof msg, pos, "\", ");
- }
-
- if (tp->lang_key != NULL)
- {
- pos = safecat(msg, sizeof msg, pos, "iTXt keyword \"");
- pos = safecat(msg, sizeof msg, pos, tp->lang_key);
- pos = safecat(msg, sizeof msg, pos, "\", ");
- }
-
- if (pos > ok)
- {
- msg[pos-2] = '\0'; /* Remove the ", " at the end */
- png_error(pp, msg);
- }
-}
-
-static void
-standard_text_validate(standard_display *dp, png_const_structp pp,
- png_infop pi, int check_end)
-{
- png_textp tp = NULL;
- png_uint_32 num_text = png_get_text(pp, pi, &tp, NULL);
-
- if (num_text == 2 && tp != NULL)
- {
- standard_check_text(pp, tp, "image name", dp->ps->current->name);
-
- /* This exists because prior to 1.5.18 the progressive reader left the
- * png_struct z_stream unreset at the end of the image, so subsequent
- * attempts to use it simply returns Z_STREAM_END.
- */
- if (check_end)
- standard_check_text(pp, tp+1, "end marker", "end");
- }
-
- else
- {
- char msg[64];
-
- sprintf(msg, "expected two text items, got %lu",
- (unsigned long)num_text);
- png_error(pp, msg);
- }
-}
-#else
-# define standard_text_validate(dp,pp,pi,check_end) ((void)0)
-#endif
-
-static void
-standard_row_validate(standard_display *dp, png_const_structp pp,
- int iImage, int iDisplay, png_uint_32 y)
-{
- int where;
- png_byte std[STANDARD_ROWMAX];
-
- /* The row must be pre-initialized to the magic number here for the size
- * tests to pass:
- */
- memset(std, 178, sizeof std);
- standard_row(pp, std, dp->id, y);
-
- /* At the end both the 'row' and 'display' arrays should end up identical.
- * In earlier passes 'row' will be partially filled in, with only the pixels
- * that have been read so far, but 'display' will have those pixels
- * replicated to fill the unread pixels while reading an interlaced image.
- */
- if (iImage >= 0 &&
- (where = pixel_cmp(std, store_image_row(dp->ps, pp, iImage, y),
- dp->bit_width)) != 0)
- {
- char msg[64];
- sprintf(msg, "PNG image row[%lu][%d] changed from %.2x to %.2x",
- (unsigned long)y, where-1, std[where-1],
- store_image_row(dp->ps, pp, iImage, y)[where-1]);
- png_error(pp, msg);
- }
-
- if (iDisplay >= 0 &&
- (where = pixel_cmp(std, store_image_row(dp->ps, pp, iDisplay, y),
- dp->bit_width)) != 0)
- {
- char msg[64];
- sprintf(msg, "display row[%lu][%d] changed from %.2x to %.2x",
- (unsigned long)y, where-1, std[where-1],
- store_image_row(dp->ps, pp, iDisplay, y)[where-1]);
- png_error(pp, msg);
- }
-}
-
-static void
-standard_image_validate(standard_display *dp, png_const_structp pp, int iImage,
- int iDisplay)
-{
- png_uint_32 y;
-
- if (iImage >= 0)
- store_image_check(dp->ps, pp, iImage);
-
- if (iDisplay >= 0)
- store_image_check(dp->ps, pp, iDisplay);
-
- for (y=0; y<dp->h; ++y)
- standard_row_validate(dp, pp, iImage, iDisplay, y);
-
- /* This avoids false positives if the validation code is never called! */
- dp->ps->validated = 1;
-}
-
-static void PNGCBAPI
-standard_end(png_structp ppIn, png_infop pi)
-{
- png_const_structp pp = ppIn;
- standard_display *dp = voidcast(standard_display*,
- png_get_progressive_ptr(pp));
-
- UNUSED(pi)
-
- /* Validate the image - progressive reading only produces one variant for
- * interlaced images.
- */
- standard_text_validate(dp, pp, pi,
- PNG_LIBPNG_VER >= 10518/*check_end: see comments above*/);
- standard_image_validate(dp, pp, 0, -1);
-}
-
-/* A single test run checking the standard image to ensure it is not damaged. */
-static void
-standard_test(png_store* const psIn, png_uint_32 const id,
- int do_interlace, int use_update_info)
-{
- standard_display d;
- context(psIn, fault);
-
- /* Set up the display (stack frame) variables from the arguments to the
- * function and initialize the locals that are filled in later.
- */
- standard_display_init(&d, psIn, id, do_interlace, use_update_info);
-
- /* Everything is protected by a Try/Catch. The functions called also
- * typically have local Try/Catch blocks.
- */
- Try
- {
- png_structp pp;
- png_infop pi;
-
- /* Get a png_struct for reading the image. This will throw an error if it
- * fails, so we don't need to check the result.
- */
- pp = set_store_for_read(d.ps, &pi, d.id,
- d.do_interlace ? (d.ps->progressive ?
- "pngvalid progressive deinterlacer" :
- "pngvalid sequential deinterlacer") : (d.ps->progressive ?
- "progressive reader" : "sequential reader"));
-
- /* Initialize the palette correctly from the png_store_file. */
- standard_palette_init(&d);
-
- /* Introduce the correct read function. */
- if (d.ps->progressive)
- {
- png_set_progressive_read_fn(pp, &d, standard_info, progressive_row,
- standard_end);
-
- /* Now feed data into the reader until we reach the end: */
- store_progressive_read(d.ps, pp, pi);
- }
- else
- {
- /* Note that this takes the store, not the display. */
- png_set_read_fn(pp, d.ps, store_read);
-
- /* Check the header values: */
- png_read_info(pp, pi);
-
- /* The code tests both versions of the images that the sequential
- * reader can produce.
- */
- standard_info_imp(&d, pp, pi, 2 /*images*/);
-
- /* Need the total bytes in the image below; we can't get to this point
- * unless the PNG file values have been checked against the expected
- * values.
- */
- {
- sequential_row(&d, pp, pi, 0, 1);
-
- /* After the last pass loop over the rows again to check that the
- * image is correct.
- */
- if (!d.speed)
- {
- standard_text_validate(&d, pp, pi, 1/*check_end*/);
- standard_image_validate(&d, pp, 0, 1);
- }
- else
- d.ps->validated = 1;
- }
- }
-
- /* Check for validation. */
- if (!d.ps->validated)
- png_error(pp, "image read failed silently");
-
- /* Successful completion. */
- }
-
- Catch(fault)
- d.ps = fault; /* make sure this hasn't been clobbered. */
-
- /* In either case clean up the store. */
- store_read_reset(d.ps);
-}
-
-static int
-test_standard(png_modifier* const pm, png_byte const colour_type,
- int bdlo, int const bdhi)
-{
- for (; bdlo <= bdhi; ++bdlo)
- {
- int interlace_type;
-
- for (interlace_type = PNG_INTERLACE_NONE;
- interlace_type < INTERLACE_LAST; ++interlace_type)
- {
- standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
- interlace_type, 0, 0, 0), do_read_interlace, pm->use_update_info);
-
- if (fail(pm))
- return 0;
- }
- }
-
- return 1; /* keep going */
-}
-
-static void
-perform_standard_test(png_modifier *pm)
-{
- /* Test each colour type over the valid range of bit depths (expressed as
- * log2(bit_depth) in turn, stop as soon as any error is detected.
- */
- if (!test_standard(pm, 0, 0, READ_BDHI))
- return;
-
- if (!test_standard(pm, 2, 3, READ_BDHI))
- return;
-
- if (!test_standard(pm, 3, 0, 3))
- return;
-
- if (!test_standard(pm, 4, 3, READ_BDHI))
- return;
-
- if (!test_standard(pm, 6, 3, READ_BDHI))
- return;
-}
-
-
-/********************************** SIZE TESTS ********************************/
-static int
-test_size(png_modifier* const pm, png_byte const colour_type,
- int bdlo, int const bdhi)
-{
- /* Run the tests on each combination.
- *
- * NOTE: on my 32 bit x86 each of the following blocks takes
- * a total of 3.5 seconds if done across every combo of bit depth
- * width and height. This is a waste of time in practice, hence the
- * hinc and winc stuff:
- */
- static const png_byte hinc[] = {1, 3, 11, 1, 5};
- static const png_byte winc[] = {1, 9, 5, 7, 1};
- int save_bdlo = bdlo;
-
- for (; bdlo <= bdhi; ++bdlo)
- {
- png_uint_32 h, w;
-
- for (h=1; h<=16; h+=hinc[bdlo]) for (w=1; w<=16; w+=winc[bdlo])
- {
- /* First test all the 'size' images against the sequential
- * reader using libpng to deinterlace (where required.) This
- * validates the write side of libpng. There are four possibilities
- * to validate.
- */
- standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
- PNG_INTERLACE_NONE, w, h, 0), 0/*do_interlace*/,
- pm->use_update_info);
-
- if (fail(pm))
- return 0;
-
- standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
- PNG_INTERLACE_NONE, w, h, 1), 0/*do_interlace*/,
- pm->use_update_info);
-
- if (fail(pm))
- return 0;
-
- /* Now validate the interlaced read side - do_interlace true,
- * in the progressive case this does actually make a difference
- * to the code used in the non-interlaced case too.
- */
- standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
- PNG_INTERLACE_NONE, w, h, 0), 1/*do_interlace*/,
- pm->use_update_info);
-
- if (fail(pm))
- return 0;
-
-# if CAN_WRITE_INTERLACE
- /* Validate the pngvalid code itself: */
- standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
- PNG_INTERLACE_ADAM7, w, h, 1), 1/*do_interlace*/,
- pm->use_update_info);
-
- if (fail(pm))
- return 0;
-# endif
- }
- }
-
- /* Now do the tests of libpng interlace handling, after we have made sure
- * that the pngvalid version works:
- */
- for (bdlo = save_bdlo; bdlo <= bdhi; ++bdlo)
- {
- png_uint_32 h, w;
-
- for (h=1; h<=16; h+=hinc[bdlo]) for (w=1; w<=16; w+=winc[bdlo])
- {
-# ifdef PNG_READ_INTERLACING_SUPPORTED
- /* Test with pngvalid generated interlaced images first; we have
- * already verify these are ok (unless pngvalid has self-consistent
- * read/write errors, which is unlikely), so this detects errors in the
- * read side first:
- */
-# if CAN_WRITE_INTERLACE
- standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
- PNG_INTERLACE_ADAM7, w, h, 1), 0/*do_interlace*/,
- pm->use_update_info);
-
- if (fail(pm))
- return 0;
-# endif
-# endif /* READ_INTERLACING */
-
-# ifdef PNG_WRITE_INTERLACING_SUPPORTED
- /* Test the libpng write side against the pngvalid read side: */
- standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
- PNG_INTERLACE_ADAM7, w, h, 0), 1/*do_interlace*/,
- pm->use_update_info);
-
- if (fail(pm))
- return 0;
-# endif
-
-# ifdef PNG_READ_INTERLACING_SUPPORTED
-# ifdef PNG_WRITE_INTERLACING_SUPPORTED
- /* Test both together: */
- standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
- PNG_INTERLACE_ADAM7, w, h, 0), 0/*do_interlace*/,
- pm->use_update_info);
-
- if (fail(pm))
- return 0;
-# endif
-# endif /* READ_INTERLACING */
- }
- }
-
- return 1; /* keep going */
-}
-
-static void
-perform_size_test(png_modifier *pm)
-{
- /* Test each colour type over the valid range of bit depths (expressed as
- * log2(bit_depth) in turn, stop as soon as any error is detected.
- */
- if (!test_size(pm, 0, 0, READ_BDHI))
- return;
-
- if (!test_size(pm, 2, 3, READ_BDHI))
- return;
-
- /* For the moment don't do the palette test - it's a waste of time when
- * compared to the grayscale test.
- */
-#if 0
- if (!test_size(pm, 3, 0, 3))
- return;
-#endif
-
- if (!test_size(pm, 4, 3, READ_BDHI))
- return;
-
- if (!test_size(pm, 6, 3, READ_BDHI))
- return;
-}
-
-
-/******************************* TRANSFORM TESTS ******************************/
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
-/* A set of tests to validate libpng image transforms. The possibilities here
- * are legion because the transforms can be combined in a combinatorial
- * fashion. To deal with this some measure of restraint is required, otherwise
- * the tests would take forever.
- */
-typedef struct image_pixel
-{
- /* A local (pngvalid) representation of a PNG pixel, in all its
- * various forms.
- */
- unsigned int red, green, blue, alpha; /* For non-palette images. */
- unsigned int palette_index; /* For a palette image. */
- png_byte colour_type; /* As in the spec. */
- png_byte bit_depth; /* Defines bit size in row */
- png_byte sample_depth; /* Scale of samples */
- unsigned int have_tRNS :1; /* tRNS chunk may need processing */
- unsigned int swap_rgb :1; /* RGB swapped to BGR */
- unsigned int alpha_first :1; /* Alpha at start, not end */
- unsigned int alpha_inverted :1; /* Alpha channel inverted */
- unsigned int mono_inverted :1; /* Gray channel inverted */
- unsigned int swap16 :1; /* Byte swap 16-bit components */
- unsigned int littleendian :1; /* High bits on right */
- unsigned int sig_bits :1; /* Pixel shifted (sig bits only) */
-
- /* For checking the code calculates double precision floating point values
- * along with an error value, accumulated from the transforms. Because an
- * sBIT setting allows larger error bounds (indeed, by the spec, apparently
- * up to just less than +/-1 in the scaled value) the *lowest* sBIT for each
- * channel is stored. This sBIT value is folded in to the stored error value
- * at the end of the application of the transforms to the pixel.
- *
- * If sig_bits is set above the red, green, blue and alpha values have been
- * scaled so they only contain the significant bits of the component values.
- */
- double redf, greenf, bluef, alphaf;
- double rede, greene, bluee, alphae;
- png_byte red_sBIT, green_sBIT, blue_sBIT, alpha_sBIT;
-} image_pixel;
-
-/* Shared utility function, see below. */
-static void
-image_pixel_setf(image_pixel *this, unsigned int rMax, unsigned int gMax,
- unsigned int bMax, unsigned int aMax)
-{
- this->redf = this->red / (double)rMax;
- this->greenf = this->green / (double)gMax;
- this->bluef = this->blue / (double)bMax;
- this->alphaf = this->alpha / (double)aMax;
-
- if (this->red < rMax)
- this->rede = this->redf * DBL_EPSILON;
- else
- this->rede = 0;
- if (this->green < gMax)
- this->greene = this->greenf * DBL_EPSILON;
- else
- this->greene = 0;
- if (this->blue < bMax)
- this->bluee = this->bluef * DBL_EPSILON;
- else
- this->bluee = 0;
- if (this->alpha < aMax)
- this->alphae = this->alphaf * DBL_EPSILON;
- else
- this->alphae = 0;
-}
-
-/* Initialize the structure for the next pixel - call this before doing any
- * transforms and call it for each pixel since all the fields may need to be
- * reset.
- */
-static void
-image_pixel_init(image_pixel *this, png_const_bytep row, png_byte colour_type,
- png_byte bit_depth, png_uint_32 x, store_palette palette,
- const image_pixel *format /*from pngvalid transform of input*/)
-{
- png_byte sample_depth =
- (png_byte)(colour_type == PNG_COLOR_TYPE_PALETTE ? 8 : bit_depth);
- unsigned int max = (1U<<sample_depth)-1;
- int swap16 = (format != 0 && format->swap16);
- int littleendian = (format != 0 && format->littleendian);
- int sig_bits = (format != 0 && format->sig_bits);
-
- /* Initially just set everything to the same number and the alpha to opaque.
- * Note that this currently assumes a simple palette where entry x has colour
- * rgb(x,x,x)!
- */
- this->palette_index = this->red = this->green = this->blue =
- sample(row, colour_type, bit_depth, x, 0, swap16, littleendian);
- this->alpha = max;
- this->red_sBIT = this->green_sBIT = this->blue_sBIT = this->alpha_sBIT =
- sample_depth;
-
- /* Then override as appropriate: */
- if (colour_type == 3) /* palette */
- {
- /* This permits the caller to default to the sample value. */
- if (palette != 0)
- {
- unsigned int i = this->palette_index;
-
- this->red = palette[i].red;
- this->green = palette[i].green;
- this->blue = palette[i].blue;
- this->alpha = palette[i].alpha;
- }
- }
-
- else /* not palette */
- {
- unsigned int i = 0;
-
- if ((colour_type & 4) != 0 && format != 0 && format->alpha_first)
- {
- this->alpha = this->red;
- /* This handles the gray case for 'AG' pixels */
- this->palette_index = this->red = this->green = this->blue =
- sample(row, colour_type, bit_depth, x, 1, swap16, littleendian);
- i = 1;
- }
-
- if (colour_type & 2)
- {
- /* Green is second for both BGR and RGB: */
- this->green = sample(row, colour_type, bit_depth, x, ++i, swap16,
- littleendian);
-
- if (format != 0 && format->swap_rgb) /* BGR */
- this->red = sample(row, colour_type, bit_depth, x, ++i, swap16,
- littleendian);
- else
- this->blue = sample(row, colour_type, bit_depth, x, ++i, swap16,
- littleendian);
- }
-
- else /* grayscale */ if (format != 0 && format->mono_inverted)
- this->red = this->green = this->blue = this->red ^ max;
-
- if ((colour_type & 4) != 0) /* alpha */
- {
- if (format == 0 || !format->alpha_first)
- this->alpha = sample(row, colour_type, bit_depth, x, ++i, swap16,
- littleendian);
-
- if (format != 0 && format->alpha_inverted)
- this->alpha ^= max;
- }
- }
-
- /* Calculate the scaled values, these are simply the values divided by
- * 'max' and the error is initialized to the double precision epsilon value
- * from the header file.
- */
- image_pixel_setf(this,
- sig_bits ? (1U << format->red_sBIT)-1 : max,
- sig_bits ? (1U << format->green_sBIT)-1 : max,
- sig_bits ? (1U << format->blue_sBIT)-1 : max,
- sig_bits ? (1U << format->alpha_sBIT)-1 : max);
-
- /* Store the input information for use in the transforms - these will
- * modify the information.
- */
- this->colour_type = colour_type;
- this->bit_depth = bit_depth;
- this->sample_depth = sample_depth;
- this->have_tRNS = 0;
- this->swap_rgb = 0;
- this->alpha_first = 0;
- this->alpha_inverted = 0;
- this->mono_inverted = 0;
- this->swap16 = 0;
- this->littleendian = 0;
- this->sig_bits = 0;
-}
-
-#if defined PNG_READ_EXPAND_SUPPORTED || defined PNG_READ_GRAY_TO_RGB_SUPPORTED\
- || defined PNG_READ_EXPAND_SUPPORTED || defined PNG_READ_EXPAND_16_SUPPORTED\
- || defined PNG_READ_BACKGROUND_SUPPORTED
-/* Convert a palette image to an rgb image. This necessarily converts the tRNS
- * chunk at the same time, because the tRNS will be in palette form. The way
- * palette validation works means that the original palette is never updated,
- * instead the image_pixel value from the row contains the RGB of the
- * corresponding palette entry and *this* is updated. Consequently this routine
- * only needs to change the colour type information.
- */
-static void
-image_pixel_convert_PLTE(image_pixel *this)
-{
- if (this->colour_type == PNG_COLOR_TYPE_PALETTE)
- {
- if (this->have_tRNS)
- {
- this->colour_type = PNG_COLOR_TYPE_RGB_ALPHA;
- this->have_tRNS = 0;
- }
- else
- this->colour_type = PNG_COLOR_TYPE_RGB;
-
- /* The bit depth of the row changes at this point too (notice that this is
- * the row format, not the sample depth, which is separate.)
- */
- this->bit_depth = 8;
- }
-}
-
-/* Add an alpha channel; this will import the tRNS information because tRNS is
- * not valid in an alpha image. The bit depth will invariably be set to at
- * least 8 prior to 1.7.0. Palette images will be converted to alpha (using
- * the above API). With png_set_background the alpha channel is never expanded
- * but this routine is used by pngvalid to simplify code; 'for_background'
- * records this.
- */
-static void
-image_pixel_add_alpha(image_pixel *this, const standard_display *display,
- int for_background)
-{
- if (this->colour_type == PNG_COLOR_TYPE_PALETTE)
- image_pixel_convert_PLTE(this);
-
- if ((this->colour_type & PNG_COLOR_MASK_ALPHA) == 0)
- {
- if (this->colour_type == PNG_COLOR_TYPE_GRAY)
- {
-# if PNG_LIBPNG_VER < 10700
- if (!for_background && this->bit_depth < 8)
- this->bit_depth = this->sample_depth = 8;
-# endif
-
- if (this->have_tRNS)
- {
- /* After 1.7 the expansion of bit depth only happens if there is a
- * tRNS chunk to expand at this point.
- */
-# if PNG_LIBPNG_VER >= 10700
- if (!for_background && this->bit_depth < 8)
- this->bit_depth = this->sample_depth = 8;
-# endif
-
- this->have_tRNS = 0;
-
- /* Check the input, original, channel value here against the
- * original tRNS gray chunk valie.
- */
- if (this->red == display->transparent.red)
- this->alphaf = 0;
- else
- this->alphaf = 1;
- }
- else
- this->alphaf = 1;
-
- this->colour_type = PNG_COLOR_TYPE_GRAY_ALPHA;
- }
-
- else if (this->colour_type == PNG_COLOR_TYPE_RGB)
- {
- if (this->have_tRNS)
- {
- this->have_tRNS = 0;
-
- /* Again, check the exact input values, not the current transformed
- * value!
- */
- if (this->red == display->transparent.red &&
- this->green == display->transparent.green &&
- this->blue == display->transparent.blue)
- this->alphaf = 0;
- else
- this->alphaf = 1;
- }
- else
- this->alphaf = 1;
-
- this->colour_type = PNG_COLOR_TYPE_RGB_ALPHA;
- }
-
- /* The error in the alpha is zero and the sBIT value comes from the
- * original sBIT data (actually it will always be the original bit depth).
- */
- this->alphae = 0;
- this->alpha_sBIT = display->alpha_sBIT;
- }
-}
-#endif /* transforms that need image_pixel_add_alpha */
-
-struct transform_display;
-typedef struct image_transform
-{
- /* The name of this transform: a string. */
- const char *name;
-
- /* Each transform can be disabled from the command line: */
- int enable;
-
- /* The global list of transforms; read only. */
- struct image_transform *const list;
-
- /* The global count of the number of times this transform has been set on an
- * image.
- */
- unsigned int global_use;
-
- /* The local count of the number of times this transform has been set. */
- unsigned int local_use;
-
- /* The next transform in the list, each transform must call its own next
- * transform after it has processed the pixel successfully.
- */
- const struct image_transform *next;
-
- /* A single transform for the image, expressed as a series of function
- * callbacks and some space for values.
- *
- * First a callback to add any required modifications to the png_modifier;
- * this gets called just before the modifier is set up for read.
- */
- void (*ini)(const struct image_transform *this,
- struct transform_display *that);
-
- /* And a callback to set the transform on the current png_read_struct:
- */
- void (*set)(const struct image_transform *this,
- struct transform_display *that, png_structp pp, png_infop pi);
-
- /* Then a transform that takes an input pixel in one PNG format or another
- * and modifies it by a pngvalid implementation of the transform (thus
- * duplicating the libpng intent without, we hope, duplicating the bugs
- * in the libpng implementation!) The png_structp is solely to allow error
- * reporting via png_error and png_warning.
- */
- void (*mod)(const struct image_transform *this, image_pixel *that,
- png_const_structp pp, const struct transform_display *display);
-
- /* Add this transform to the list and return true if the transform is
- * meaningful for this colour type and bit depth - if false then the
- * transform should have no effect on the image so there's not a lot of
- * point running it.
- */
- int (*add)(struct image_transform *this,
- const struct image_transform **that, png_byte colour_type,
- png_byte bit_depth);
-} image_transform;
-
-typedef struct transform_display
-{
- standard_display this;
-
- /* Parameters */
- png_modifier* pm;
- const image_transform* transform_list;
- unsigned int max_gamma_8;
-
- /* Local variables */
- png_byte output_colour_type;
- png_byte output_bit_depth;
- png_byte unpacked;
-
- /* Modifications (not necessarily used.) */
- gama_modification gama_mod;
- chrm_modification chrm_mod;
- srgb_modification srgb_mod;
-} transform_display;
-
-/* Set sRGB, cHRM and gAMA transforms as required by the current encoding. */
-static void
-transform_set_encoding(transform_display *this)
-{
- /* Set up the png_modifier '_current' fields then use these to determine how
- * to add appropriate chunks.
- */
- png_modifier *pm = this->pm;
-
- modifier_set_encoding(pm);
-
- if (modifier_color_encoding_is_set(pm))
- {
- if (modifier_color_encoding_is_sRGB(pm))
- srgb_modification_init(&this->srgb_mod, pm, PNG_sRGB_INTENT_ABSOLUTE);
-
- else
- {
- /* Set gAMA and cHRM separately. */
- gama_modification_init(&this->gama_mod, pm, pm->current_gamma);
-
- if (pm->current_encoding != 0)
- chrm_modification_init(&this->chrm_mod, pm, pm->current_encoding);
- }
- }
-}
-
-/* Three functions to end the list: */
-static void
-image_transform_ini_end(const image_transform *this,
- transform_display *that)
-{
- UNUSED(this)
- UNUSED(that)
-}
-
-static void
-image_transform_set_end(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- UNUSED(this)
- UNUSED(that)
- UNUSED(pp)
- UNUSED(pi)
-}
-
-/* At the end of the list recalculate the output image pixel value from the
- * double precision values set up by the preceding 'mod' calls:
- */
-static unsigned int
-sample_scale(double sample_value, unsigned int scale)
-{
- sample_value = floor(sample_value * scale + .5);
-
- /* Return NaN as 0: */
- if (!(sample_value > 0))
- sample_value = 0;
- else if (sample_value > scale)
- sample_value = scale;
-
- return (unsigned int)sample_value;
-}
-
-static void
-image_transform_mod_end(const image_transform *this, image_pixel *that,
- png_const_structp pp, const transform_display *display)
-{
- unsigned int scale = (1U<<that->sample_depth)-1;
- int sig_bits = that->sig_bits;
-
- UNUSED(this)
- UNUSED(pp)
- UNUSED(display)
-
- /* At the end recalculate the digitized red green and blue values according
- * to the current sample_depth of the pixel.
- *
- * The sample value is simply scaled to the maximum, checking for over
- * and underflow (which can both happen for some image transforms,
- * including simple size scaling, though libpng doesn't do that at present.
- */
- that->red = sample_scale(that->redf, scale);
-
- /* This is a bit bogus; really the above calculation should use the red_sBIT
- * value, not sample_depth, but because libpng does png_set_shift by just
- * shifting the bits we get errors if we don't do it the same way.
- */
- if (sig_bits && that->red_sBIT < that->sample_depth)
- that->red >>= that->sample_depth - that->red_sBIT;
-
- /* The error value is increased, at the end, according to the lowest sBIT
- * value seen. Common sense tells us that the intermediate integer
- * representations are no more accurate than +/- 0.5 in the integral values,
- * the sBIT allows the implementation to be worse than this. In addition the
- * PNG specification actually permits any error within the range (-1..+1),
- * but that is ignored here. Instead the final digitized value is compared,
- * below to the digitized value of the error limits - this has the net effect
- * of allowing (almost) +/-1 in the output value. It's difficult to see how
- * any algorithm that digitizes intermediate results can be more accurate.
- */
- that->rede += 1./(2*((1U<<that->red_sBIT)-1));
-
- if (that->colour_type & PNG_COLOR_MASK_COLOR)
- {
- that->green = sample_scale(that->greenf, scale);
- if (sig_bits && that->green_sBIT < that->sample_depth)
- that->green >>= that->sample_depth - that->green_sBIT;
-
- that->blue = sample_scale(that->bluef, scale);
- if (sig_bits && that->blue_sBIT < that->sample_depth)
- that->blue >>= that->sample_depth - that->blue_sBIT;
-
- that->greene += 1./(2*((1U<<that->green_sBIT)-1));
- that->bluee += 1./(2*((1U<<that->blue_sBIT)-1));
- }
- else
- {
- that->blue = that->green = that->red;
- that->bluef = that->greenf = that->redf;
- that->bluee = that->greene = that->rede;
- }
-
- if ((that->colour_type & PNG_COLOR_MASK_ALPHA) ||
- that->colour_type == PNG_COLOR_TYPE_PALETTE)
- {
- that->alpha = sample_scale(that->alphaf, scale);
- that->alphae += 1./(2*((1U<<that->alpha_sBIT)-1));
- }
- else
- {
- that->alpha = scale; /* opaque */
- that->alphaf = 1; /* Override this. */
- that->alphae = 0; /* It's exact ;-) */
- }
-
- if (sig_bits && that->alpha_sBIT < that->sample_depth)
- that->alpha >>= that->sample_depth - that->alpha_sBIT;
-}
-
-/* Static 'end' structure: */
-static image_transform image_transform_end =
-{
- "(end)", /* name */
- 1, /* enable */
- 0, /* list */
- 0, /* global_use */
- 0, /* local_use */
- 0, /* next */
- image_transform_ini_end,
- image_transform_set_end,
- image_transform_mod_end,
- 0 /* never called, I want it to crash if it is! */
-};
-
-/* Reader callbacks and implementations, where they differ from the standard
- * ones.
- */
-static void
-transform_display_init(transform_display *dp, png_modifier *pm, png_uint_32 id,
- const image_transform *transform_list)
-{
- memset(dp, 0, sizeof *dp);
-
- /* Standard fields */
- standard_display_init(&dp->this, &pm->this, id, do_read_interlace,
- pm->use_update_info);
-
- /* Parameter fields */
- dp->pm = pm;
- dp->transform_list = transform_list;
- dp->max_gamma_8 = 16;
-
- /* Local variable fields */
- dp->output_colour_type = 255; /* invalid */
- dp->output_bit_depth = 255; /* invalid */
- dp->unpacked = 0; /* not unpacked */
-}
-
-static void
-transform_info_imp(transform_display *dp, png_structp pp, png_infop pi)
-{
- /* Reuse the standard stuff as appropriate. */
- standard_info_part1(&dp->this, pp, pi);
-
- /* Now set the list of transforms. */
- dp->transform_list->set(dp->transform_list, dp, pp, pi);
-
- /* Update the info structure for these transforms: */
- {
- int i = dp->this.use_update_info;
- /* Always do one call, even if use_update_info is 0. */
- do
- png_read_update_info(pp, pi);
- while (--i > 0);
- }
-
- /* And get the output information into the standard_display */
- standard_info_part2(&dp->this, pp, pi, 1/*images*/);
-
- /* Plus the extra stuff we need for the transform tests: */
- dp->output_colour_type = png_get_color_type(pp, pi);
- dp->output_bit_depth = png_get_bit_depth(pp, pi);
-
- /* If png_set_filler is in action then fake the output color type to include
- * an alpha channel where appropriate.
- */
- if (dp->output_bit_depth >= 8 &&
- (dp->output_colour_type == PNG_COLOR_TYPE_RGB ||
- dp->output_colour_type == PNG_COLOR_TYPE_GRAY) && dp->this.filler)
- dp->output_colour_type |= 4;
-
- /* Validate the combination of colour type and bit depth that we are getting
- * out of libpng; the semantics of something not in the PNG spec are, at
- * best, unclear.
- */
- switch (dp->output_colour_type)
- {
- case PNG_COLOR_TYPE_PALETTE:
- if (dp->output_bit_depth > 8) goto error;
- /* FALLTHROUGH */
- case PNG_COLOR_TYPE_GRAY:
- if (dp->output_bit_depth == 1 || dp->output_bit_depth == 2 ||
- dp->output_bit_depth == 4)
- break;
- /* FALLTHROUGH */
- default:
- if (dp->output_bit_depth == 8 || dp->output_bit_depth == 16)
- break;
- /* FALLTHROUGH */
- error:
- {
- char message[128];
- size_t pos;
-
- pos = safecat(message, sizeof message, 0,
- "invalid final bit depth: colour type(");
- pos = safecatn(message, sizeof message, pos, dp->output_colour_type);
- pos = safecat(message, sizeof message, pos, ") with bit depth: ");
- pos = safecatn(message, sizeof message, pos, dp->output_bit_depth);
-
- png_error(pp, message);
- }
- }
-
- /* Use a test pixel to check that the output agrees with what we expect -
- * this avoids running the whole test if the output is unexpected. This also
- * checks for internal errors.
- */
- {
- image_pixel test_pixel;
-
- memset(&test_pixel, 0, sizeof test_pixel);
- test_pixel.colour_type = dp->this.colour_type; /* input */
- test_pixel.bit_depth = dp->this.bit_depth;
- if (test_pixel.colour_type == PNG_COLOR_TYPE_PALETTE)
- test_pixel.sample_depth = 8;
- else
- test_pixel.sample_depth = test_pixel.bit_depth;
- /* Don't need sBIT here, but it must be set to non-zero to avoid
- * arithmetic overflows.
- */
- test_pixel.have_tRNS = dp->this.is_transparent != 0;
- test_pixel.red_sBIT = test_pixel.green_sBIT = test_pixel.blue_sBIT =
- test_pixel.alpha_sBIT = test_pixel.sample_depth;
-
- dp->transform_list->mod(dp->transform_list, &test_pixel, pp, dp);
-
- if (test_pixel.colour_type != dp->output_colour_type)
- {
- char message[128];
- size_t pos = safecat(message, sizeof message, 0, "colour type ");
-
- pos = safecatn(message, sizeof message, pos, dp->output_colour_type);
- pos = safecat(message, sizeof message, pos, " expected ");
- pos = safecatn(message, sizeof message, pos, test_pixel.colour_type);
-
- png_error(pp, message);
- }
-
- if (test_pixel.bit_depth != dp->output_bit_depth)
- {
- char message[128];
- size_t pos = safecat(message, sizeof message, 0, "bit depth ");
-
- pos = safecatn(message, sizeof message, pos, dp->output_bit_depth);
- pos = safecat(message, sizeof message, pos, " expected ");
- pos = safecatn(message, sizeof message, pos, test_pixel.bit_depth);
-
- png_error(pp, message);
- }
-
- /* If both bit depth and colour type are correct check the sample depth.
- */
- if (test_pixel.colour_type == PNG_COLOR_TYPE_PALETTE &&
- test_pixel.sample_depth != 8) /* oops - internal error! */
- png_error(pp, "pngvalid: internal: palette sample depth not 8");
- else if (dp->unpacked && test_pixel.bit_depth != 8)
- png_error(pp, "pngvalid: internal: bad unpacked pixel depth");
- else if (!dp->unpacked && test_pixel.colour_type != PNG_COLOR_TYPE_PALETTE
- && test_pixel.bit_depth != test_pixel.sample_depth)
- {
- char message[128];
- size_t pos = safecat(message, sizeof message, 0,
- "internal: sample depth ");
-
- /* Because unless something has set 'unpacked' or the image is palette
- * mapped we expect the transform to keep sample depth and bit depth
- * the same.
- */
- pos = safecatn(message, sizeof message, pos, test_pixel.sample_depth);
- pos = safecat(message, sizeof message, pos, " expected ");
- pos = safecatn(message, sizeof message, pos, test_pixel.bit_depth);
-
- png_error(pp, message);
- }
- else if (test_pixel.bit_depth != dp->output_bit_depth)
- {
- /* This could be a libpng error too; libpng has not produced what we
- * expect for the output bit depth.
- */
- char message[128];
- size_t pos = safecat(message, sizeof message, 0,
- "internal: bit depth ");
-
- pos = safecatn(message, sizeof message, pos, dp->output_bit_depth);
- pos = safecat(message, sizeof message, pos, " expected ");
- pos = safecatn(message, sizeof message, pos, test_pixel.bit_depth);
-
- png_error(pp, message);
- }
- }
-}
-
-static void PNGCBAPI
-transform_info(png_structp pp, png_infop pi)
-{
- transform_info_imp(voidcast(transform_display*, png_get_progressive_ptr(pp)),
- pp, pi);
-}
-
-static void
-transform_range_check(png_const_structp pp, unsigned int r, unsigned int g,
- unsigned int b, unsigned int a, unsigned int in_digitized, double in,
- unsigned int out, png_byte sample_depth, double err, double limit,
- const char *name, double digitization_error)
-{
- /* Compare the scaled, digitzed, values of our local calculation (in+-err)
- * with the digitized values libpng produced; 'sample_depth' is the actual
- * digitization depth of the libpng output colors (the bit depth except for
- * palette images where it is always 8.) The check on 'err' is to detect
- * internal errors in pngvalid itself.
- */
- unsigned int max = (1U<<sample_depth)-1;
- double in_min = ceil((in-err)*max - digitization_error);
- double in_max = floor((in+err)*max + digitization_error);
- if (debugonly(err > limit ||) !(out >= in_min && out <= in_max))
- {
- char message[256];
- size_t pos;
-
- pos = safecat(message, sizeof message, 0, name);
- pos = safecat(message, sizeof message, pos, " output value error: rgba(");
- pos = safecatn(message, sizeof message, pos, r);
- pos = safecat(message, sizeof message, pos, ",");
- pos = safecatn(message, sizeof message, pos, g);
- pos = safecat(message, sizeof message, pos, ",");
- pos = safecatn(message, sizeof message, pos, b);
- pos = safecat(message, sizeof message, pos, ",");
- pos = safecatn(message, sizeof message, pos, a);
- pos = safecat(message, sizeof message, pos, "): ");
- pos = safecatn(message, sizeof message, pos, out);
- pos = safecat(message, sizeof message, pos, " expected: ");
- pos = safecatn(message, sizeof message, pos, in_digitized);
- pos = safecat(message, sizeof message, pos, " (");
- pos = safecatd(message, sizeof message, pos, (in-err)*max, 3);
- pos = safecat(message, sizeof message, pos, "..");
- pos = safecatd(message, sizeof message, pos, (in+err)*max, 3);
- pos = safecat(message, sizeof message, pos, ")");
-
- png_error(pp, message);
- }
-
- UNUSED(limit)
-}
-
-static void
-transform_image_validate(transform_display *dp, png_const_structp pp,
- png_infop pi)
-{
- /* Constants for the loop below: */
- const png_store* const ps = dp->this.ps;
- png_byte in_ct = dp->this.colour_type;
- png_byte in_bd = dp->this.bit_depth;
- png_uint_32 w = dp->this.w;
- png_uint_32 h = dp->this.h;
- png_byte out_ct = dp->output_colour_type;
- png_byte out_bd = dp->output_bit_depth;
- png_byte sample_depth =
- (png_byte)(out_ct == PNG_COLOR_TYPE_PALETTE ? 8 : out_bd);
- png_byte red_sBIT = dp->this.red_sBIT;
- png_byte green_sBIT = dp->this.green_sBIT;
- png_byte blue_sBIT = dp->this.blue_sBIT;
- png_byte alpha_sBIT = dp->this.alpha_sBIT;
- int have_tRNS = dp->this.is_transparent;
- double digitization_error;
-
- store_palette out_palette;
- png_uint_32 y;
-
- UNUSED(pi)
-
- /* Check for row overwrite errors */
- store_image_check(dp->this.ps, pp, 0);
-
- /* Read the palette corresponding to the output if the output colour type
- * indicates a palette, otherwise set out_palette to garbage.
- */
- if (out_ct == PNG_COLOR_TYPE_PALETTE)
- {
- /* Validate that the palette count itself has not changed - this is not
- * expected.
- */
- int npalette = (-1);
-
- (void)read_palette(out_palette, &npalette, pp, pi);
- if (npalette != dp->this.npalette)
- png_error(pp, "unexpected change in palette size");
-
- digitization_error = .5;
- }
- else
- {
- png_byte in_sample_depth;
-
- memset(out_palette, 0x5e, sizeof out_palette);
-
- /* use-input-precision means assume that if the input has 8 bit (or less)
- * samples and the output has 16 bit samples the calculations will be done
- * with 8 bit precision, not 16.
- */
- if (in_ct == PNG_COLOR_TYPE_PALETTE || in_bd < 16)
- in_sample_depth = 8;
- else
- in_sample_depth = in_bd;
-
- if (sample_depth != 16 || in_sample_depth > 8 ||
- !dp->pm->calculations_use_input_precision)
- digitization_error = .5;
-
- /* Else calculations are at 8 bit precision, and the output actually
- * consists of scaled 8-bit values, so scale .5 in 8 bits to the 16 bits:
- */
- else
- digitization_error = .5 * 257;
- }
-
- for (y=0; y<h; ++y)
- {
- png_const_bytep const pRow = store_image_row(ps, pp, 0, y);
- png_uint_32 x;
-
- /* The original, standard, row pre-transforms. */
- png_byte std[STANDARD_ROWMAX];
-
- transform_row(pp, std, in_ct, in_bd, y);
-
- /* Go through each original pixel transforming it and comparing with what
- * libpng did to the same pixel.
- */
- for (x=0; x<w; ++x)
- {
- image_pixel in_pixel, out_pixel;
- unsigned int r, g, b, a;
-
- /* Find out what we think the pixel should be: */
- image_pixel_init(&in_pixel, std, in_ct, in_bd, x, dp->this.palette,
- NULL);
-
- in_pixel.red_sBIT = red_sBIT;
- in_pixel.green_sBIT = green_sBIT;
- in_pixel.blue_sBIT = blue_sBIT;
- in_pixel.alpha_sBIT = alpha_sBIT;
- in_pixel.have_tRNS = have_tRNS != 0;
-
- /* For error detection, below. */
- r = in_pixel.red;
- g = in_pixel.green;
- b = in_pixel.blue;
- a = in_pixel.alpha;
-
- /* This applies the transforms to the input data, including output
- * format operations which must be used when reading the output
- * pixel that libpng produces.
- */
- dp->transform_list->mod(dp->transform_list, &in_pixel, pp, dp);
-
- /* Read the output pixel and compare it to what we got, we don't
- * use the error field here, so no need to update sBIT. in_pixel
- * says whether we expect libpng to change the output format.
- */
- image_pixel_init(&out_pixel, pRow, out_ct, out_bd, x, out_palette,
- &in_pixel);
-
- /* We don't expect changes to the index here even if the bit depth is
- * changed.
- */
- if (in_ct == PNG_COLOR_TYPE_PALETTE &&
- out_ct == PNG_COLOR_TYPE_PALETTE)
- {
- if (in_pixel.palette_index != out_pixel.palette_index)
- png_error(pp, "unexpected transformed palette index");
- }
-
- /* Check the colours for palette images too - in fact the palette could
- * be separately verified itself in most cases.
- */
- if (in_pixel.red != out_pixel.red)
- transform_range_check(pp, r, g, b, a, in_pixel.red, in_pixel.redf,
- out_pixel.red, sample_depth, in_pixel.rede,
- dp->pm->limit + 1./(2*((1U<<in_pixel.red_sBIT)-1)), "red/gray",
- digitization_error);
-
- if ((out_ct & PNG_COLOR_MASK_COLOR) != 0 &&
- in_pixel.green != out_pixel.green)
- transform_range_check(pp, r, g, b, a, in_pixel.green,
- in_pixel.greenf, out_pixel.green, sample_depth, in_pixel.greene,
- dp->pm->limit + 1./(2*((1U<<in_pixel.green_sBIT)-1)), "green",
- digitization_error);
-
- if ((out_ct & PNG_COLOR_MASK_COLOR) != 0 &&
- in_pixel.blue != out_pixel.blue)
- transform_range_check(pp, r, g, b, a, in_pixel.blue, in_pixel.bluef,
- out_pixel.blue, sample_depth, in_pixel.bluee,
- dp->pm->limit + 1./(2*((1U<<in_pixel.blue_sBIT)-1)), "blue",
- digitization_error);
-
- if ((out_ct & PNG_COLOR_MASK_ALPHA) != 0 &&
- in_pixel.alpha != out_pixel.alpha)
- transform_range_check(pp, r, g, b, a, in_pixel.alpha,
- in_pixel.alphaf, out_pixel.alpha, sample_depth, in_pixel.alphae,
- dp->pm->limit + 1./(2*((1U<<in_pixel.alpha_sBIT)-1)), "alpha",
- digitization_error);
- } /* pixel (x) loop */
- } /* row (y) loop */
-
- /* Record that something was actually checked to avoid a false positive. */
- dp->this.ps->validated = 1;
-}
-
-static void PNGCBAPI
-transform_end(png_structp ppIn, png_infop pi)
-{
- png_const_structp pp = ppIn;
- transform_display *dp = voidcast(transform_display*,
- png_get_progressive_ptr(pp));
-
- if (!dp->this.speed)
- transform_image_validate(dp, pp, pi);
- else
- dp->this.ps->validated = 1;
-}
-
-/* A single test run. */
-static void
-transform_test(png_modifier *pmIn, png_uint_32 idIn,
- const image_transform* transform_listIn, const char * const name)
-{
- transform_display d;
- context(&pmIn->this, fault);
-
- transform_display_init(&d, pmIn, idIn, transform_listIn);
-
- Try
- {
- size_t pos = 0;
- png_structp pp;
- png_infop pi;
- char full_name[256];
-
- /* Make sure the encoding fields are correct and enter the required
- * modifications.
- */
- transform_set_encoding(&d);
-
- /* Add any modifications required by the transform list. */
- d.transform_list->ini(d.transform_list, &d);
-
- /* Add the color space information, if any, to the name. */
- pos = safecat(full_name, sizeof full_name, pos, name);
- pos = safecat_current_encoding(full_name, sizeof full_name, pos, d.pm);
-
- /* Get a png_struct for reading the image. */
- pp = set_modifier_for_read(d.pm, &pi, d.this.id, full_name);
- standard_palette_init(&d.this);
-
-# if 0
- /* Logging (debugging only) */
- {
- char buffer[256];
-
- (void)store_message(&d.pm->this, pp, buffer, sizeof buffer, 0,
- "running test");
-
- fprintf(stderr, "%s\n", buffer);
- }
-# endif
-
- /* Introduce the correct read function. */
- if (d.pm->this.progressive)
- {
- /* Share the row function with the standard implementation. */
- png_set_progressive_read_fn(pp, &d, transform_info, progressive_row,
- transform_end);
-
- /* Now feed data into the reader until we reach the end: */
- modifier_progressive_read(d.pm, pp, pi);
- }
- else
- {
- /* modifier_read expects a png_modifier* */
- png_set_read_fn(pp, d.pm, modifier_read);
-
- /* Check the header values: */
- png_read_info(pp, pi);
-
- /* Process the 'info' requirements. Only one image is generated */
- transform_info_imp(&d, pp, pi);
-
- sequential_row(&d.this, pp, pi, -1, 0);
-
- if (!d.this.speed)
- transform_image_validate(&d, pp, pi);
- else
- d.this.ps->validated = 1;
- }
-
- modifier_reset(d.pm);
- }
-
- Catch(fault)
- {
- modifier_reset(voidcast(png_modifier*,(void*)fault));
- }
-}
-
-/* The transforms: */
-#define ITSTRUCT(name) image_transform_##name
-#define ITDATA(name) image_transform_data_##name
-#define image_transform_ini image_transform_default_ini
-#define IT(name)\
-static image_transform ITSTRUCT(name) =\
-{\
- #name,\
- 1, /*enable*/\
- &PT, /*list*/\
- 0, /*global_use*/\
- 0, /*local_use*/\
- 0, /*next*/\
- image_transform_ini,\
- image_transform_png_set_##name##_set,\
- image_transform_png_set_##name##_mod,\
- image_transform_png_set_##name##_add\
-}
-#define PT ITSTRUCT(end) /* stores the previous transform */
-
-/* To save code: */
-extern void image_transform_default_ini(const image_transform *this,
- transform_display *that); /* silence GCC warnings */
-
-void /* private, but almost always needed */
-image_transform_default_ini(const image_transform *this,
- transform_display *that)
-{
- this->next->ini(this->next, that);
-}
-
-#ifdef PNG_READ_BACKGROUND_SUPPORTED
-static int
-image_transform_default_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(colour_type)
- UNUSED(bit_depth)
-
- this->next = *that;
- *that = this;
-
- return 1;
-}
-#endif
-
-#ifdef PNG_READ_EXPAND_SUPPORTED
-/* png_set_palette_to_rgb */
-static void
-image_transform_png_set_palette_to_rgb_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_palette_to_rgb(pp);
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_palette_to_rgb_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- if (that->colour_type == PNG_COLOR_TYPE_PALETTE)
- image_pixel_convert_PLTE(that);
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_palette_to_rgb_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(bit_depth)
-
- this->next = *that;
- *that = this;
-
- return colour_type == PNG_COLOR_TYPE_PALETTE;
-}
-
-IT(palette_to_rgb);
-#undef PT
-#define PT ITSTRUCT(palette_to_rgb)
-#endif /* PNG_READ_EXPAND_SUPPORTED */
-
-#ifdef PNG_READ_EXPAND_SUPPORTED
-/* png_set_tRNS_to_alpha */
-static void
-image_transform_png_set_tRNS_to_alpha_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_tRNS_to_alpha(pp);
-
- /* If there was a tRNS chunk that would get expanded and add an alpha
- * channel is_transparent must be updated:
- */
- if (that->this.has_tRNS)
- that->this.is_transparent = 1;
-
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_tRNS_to_alpha_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
-#if PNG_LIBPNG_VER < 10700
- /* LIBPNG BUG: this always forces palette images to RGB. */
- if (that->colour_type == PNG_COLOR_TYPE_PALETTE)
- image_pixel_convert_PLTE(that);
-#endif
-
- /* This effectively does an 'expand' only if there is some transparency to
- * convert to an alpha channel.
- */
- if (that->have_tRNS)
-# if PNG_LIBPNG_VER >= 10700
- if (that->colour_type != PNG_COLOR_TYPE_PALETTE &&
- (that->colour_type & PNG_COLOR_MASK_ALPHA) == 0)
-# endif
- image_pixel_add_alpha(that, &display->this, 0/*!for background*/);
-
-#if PNG_LIBPNG_VER < 10700
- /* LIBPNG BUG: otherwise libpng still expands to 8 bits! */
- else
- {
- if (that->bit_depth < 8)
- that->bit_depth =8;
- if (that->sample_depth < 8)
- that->sample_depth = 8;
- }
-#endif
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_tRNS_to_alpha_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(bit_depth)
-
- this->next = *that;
- *that = this;
-
- /* We don't know yet whether there will be a tRNS chunk, but we know that
- * this transformation should do nothing if there already is an alpha
- * channel. In addition, after the bug fix in 1.7.0, there is no longer
- * any action on a palette image.
- */
- return
-# if PNG_LIBPNG_VER >= 10700
- colour_type != PNG_COLOR_TYPE_PALETTE &&
-# endif
- (colour_type & PNG_COLOR_MASK_ALPHA) == 0;
-}
-
-IT(tRNS_to_alpha);
-#undef PT
-#define PT ITSTRUCT(tRNS_to_alpha)
-#endif /* PNG_READ_EXPAND_SUPPORTED */
-
-#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
-/* png_set_gray_to_rgb */
-static void
-image_transform_png_set_gray_to_rgb_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_gray_to_rgb(pp);
- /* NOTE: this doesn't result in tRNS expansion. */
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_gray_to_rgb_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- /* NOTE: we can actually pend the tRNS processing at this point because we
- * can correctly recognize the original pixel value even though we have
- * mapped the one gray channel to the three RGB ones, but in fact libpng
- * doesn't do this, so we don't either.
- */
- if ((that->colour_type & PNG_COLOR_MASK_COLOR) == 0 && that->have_tRNS)
- image_pixel_add_alpha(that, &display->this, 0/*!for background*/);
-
- /* Simply expand the bit depth and alter the colour type as required. */
- if (that->colour_type == PNG_COLOR_TYPE_GRAY)
- {
- /* RGB images have a bit depth at least equal to '8' */
- if (that->bit_depth < 8)
- that->sample_depth = that->bit_depth = 8;
-
- /* And just changing the colour type works here because the green and blue
- * channels are being maintained in lock-step with the red/gray:
- */
- that->colour_type = PNG_COLOR_TYPE_RGB;
- }
-
- else if (that->colour_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- that->colour_type = PNG_COLOR_TYPE_RGB_ALPHA;
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_gray_to_rgb_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(bit_depth)
-
- this->next = *that;
- *that = this;
-
- return (colour_type & PNG_COLOR_MASK_COLOR) == 0;
-}
-
-IT(gray_to_rgb);
-#undef PT
-#define PT ITSTRUCT(gray_to_rgb)
-#endif /* PNG_READ_GRAY_TO_RGB_SUPPORTED */
-
-#ifdef PNG_READ_EXPAND_SUPPORTED
-/* png_set_expand */
-static void
-image_transform_png_set_expand_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_expand(pp);
-
- if (that->this.has_tRNS)
- that->this.is_transparent = 1;
-
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_expand_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- /* The general expand case depends on what the colour type is: */
- if (that->colour_type == PNG_COLOR_TYPE_PALETTE)
- image_pixel_convert_PLTE(that);
- else if (that->bit_depth < 8) /* grayscale */
- that->sample_depth = that->bit_depth = 8;
-
- if (that->have_tRNS)
- image_pixel_add_alpha(that, &display->this, 0/*!for background*/);
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_expand_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(bit_depth)
-
- this->next = *that;
- *that = this;
-
- /* 'expand' should do nothing for RGBA or GA input - no tRNS and the bit
- * depth is at least 8 already.
- */
- return (colour_type & PNG_COLOR_MASK_ALPHA) == 0;
-}
-
-IT(expand);
-#undef PT
-#define PT ITSTRUCT(expand)
-#endif /* PNG_READ_EXPAND_SUPPORTED */
-
-#ifdef PNG_READ_EXPAND_SUPPORTED
-/* png_set_expand_gray_1_2_4_to_8
- * Pre 1.7.0 LIBPNG BUG: this just does an 'expand'
- */
-static void
-image_transform_png_set_expand_gray_1_2_4_to_8_set(
- const image_transform *this, transform_display *that, png_structp pp,
- png_infop pi)
-{
- png_set_expand_gray_1_2_4_to_8(pp);
- /* NOTE: don't expect this to expand tRNS */
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_expand_gray_1_2_4_to_8_mod(
- const image_transform *this, image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
-#if PNG_LIBPNG_VER < 10700
- image_transform_png_set_expand_mod(this, that, pp, display);
-#else
- /* Only expand grayscale of bit depth less than 8: */
- if (that->colour_type == PNG_COLOR_TYPE_GRAY &&
- that->bit_depth < 8)
- that->sample_depth = that->bit_depth = 8;
-
- this->next->mod(this->next, that, pp, display);
-#endif /* 1.7 or later */
-}
-
-static int
-image_transform_png_set_expand_gray_1_2_4_to_8_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
-#if PNG_LIBPNG_VER < 10700
- return image_transform_png_set_expand_add(this, that, colour_type,
- bit_depth);
-#else
- UNUSED(bit_depth)
-
- this->next = *that;
- *that = this;
-
- /* This should do nothing unless the color type is gray and the bit depth is
- * less than 8:
- */
- return colour_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8;
-#endif /* 1.7 or later */
-}
-
-IT(expand_gray_1_2_4_to_8);
-#undef PT
-#define PT ITSTRUCT(expand_gray_1_2_4_to_8)
-#endif /* PNG_READ_EXPAND_SUPPORTED */
-
-#ifdef PNG_READ_EXPAND_16_SUPPORTED
-/* png_set_expand_16 */
-static void
-image_transform_png_set_expand_16_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_expand_16(pp);
-
- /* NOTE: prior to 1.7 libpng does SET_EXPAND as well, so tRNS is expanded. */
-# if PNG_LIBPNG_VER < 10700
- if (that->this.has_tRNS)
- that->this.is_transparent = 1;
-# endif
-
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_expand_16_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- /* Expect expand_16 to expand everything to 16 bits as a result of also
- * causing 'expand' to happen.
- */
- if (that->colour_type == PNG_COLOR_TYPE_PALETTE)
- image_pixel_convert_PLTE(that);
-
- if (that->have_tRNS)
- image_pixel_add_alpha(that, &display->this, 0/*!for background*/);
-
- if (that->bit_depth < 16)
- that->sample_depth = that->bit_depth = 16;
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_expand_16_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(colour_type)
-
- this->next = *that;
- *that = this;
-
- /* expand_16 does something unless the bit depth is already 16. */
- return bit_depth < 16;
-}
-
-IT(expand_16);
-#undef PT
-#define PT ITSTRUCT(expand_16)
-#endif /* PNG_READ_EXPAND_16_SUPPORTED */
-
-#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED /* API added in 1.5.4 */
-/* png_set_scale_16 */
-static void
-image_transform_png_set_scale_16_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_scale_16(pp);
-# if PNG_LIBPNG_VER < 10700
- /* libpng will limit the gamma table size: */
- that->max_gamma_8 = PNG_MAX_GAMMA_8;
-# endif
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_scale_16_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- if (that->bit_depth == 16)
- {
- that->sample_depth = that->bit_depth = 8;
- if (that->red_sBIT > 8) that->red_sBIT = 8;
- if (that->green_sBIT > 8) that->green_sBIT = 8;
- if (that->blue_sBIT > 8) that->blue_sBIT = 8;
- if (that->alpha_sBIT > 8) that->alpha_sBIT = 8;
- }
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_scale_16_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(colour_type)
-
- this->next = *that;
- *that = this;
-
- return bit_depth > 8;
-}
-
-IT(scale_16);
-#undef PT
-#define PT ITSTRUCT(scale_16)
-#endif /* PNG_READ_SCALE_16_TO_8_SUPPORTED (1.5.4 on) */
-
-#ifdef PNG_READ_16_TO_8_SUPPORTED /* the default before 1.5.4 */
-/* png_set_strip_16 */
-static void
-image_transform_png_set_strip_16_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_strip_16(pp);
-# if PNG_LIBPNG_VER < 10700
- /* libpng will limit the gamma table size: */
- that->max_gamma_8 = PNG_MAX_GAMMA_8;
-# endif
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_strip_16_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- if (that->bit_depth == 16)
- {
- that->sample_depth = that->bit_depth = 8;
- if (that->red_sBIT > 8) that->red_sBIT = 8;
- if (that->green_sBIT > 8) that->green_sBIT = 8;
- if (that->blue_sBIT > 8) that->blue_sBIT = 8;
- if (that->alpha_sBIT > 8) that->alpha_sBIT = 8;
-
- /* Prior to 1.5.4 png_set_strip_16 would use an 'accurate' method if this
- * configuration option is set. From 1.5.4 the flag is never set and the
- * 'scale' API (above) must be used.
- */
-# ifdef PNG_READ_ACCURATE_SCALE_SUPPORTED
-# if PNG_LIBPNG_VER >= 10504
-# error PNG_READ_ACCURATE_SCALE should not be set
-# endif
-
- /* The strip 16 algorithm drops the low 8 bits rather than calculating
- * 1/257, so we need to adjust the permitted errors appropriately:
- * Notice that this is only relevant prior to the addition of the
- * png_set_scale_16 API in 1.5.4 (but 1.5.4+ always defines the above!)
- */
- {
- const double d = (255-128.5)/65535;
- that->rede += d;
- that->greene += d;
- that->bluee += d;
- that->alphae += d;
- }
-# endif
- }
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_strip_16_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(colour_type)
-
- this->next = *that;
- *that = this;
-
- return bit_depth > 8;
-}
-
-IT(strip_16);
-#undef PT
-#define PT ITSTRUCT(strip_16)
-#endif /* PNG_READ_16_TO_8_SUPPORTED */
-
-#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
-/* png_set_strip_alpha */
-static void
-image_transform_png_set_strip_alpha_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_strip_alpha(pp);
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_strip_alpha_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- if (that->colour_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- that->colour_type = PNG_COLOR_TYPE_GRAY;
- else if (that->colour_type == PNG_COLOR_TYPE_RGB_ALPHA)
- that->colour_type = PNG_COLOR_TYPE_RGB;
-
- that->have_tRNS = 0;
- that->alphaf = 1;
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_strip_alpha_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(bit_depth)
-
- this->next = *that;
- *that = this;
-
- return (colour_type & PNG_COLOR_MASK_ALPHA) != 0;
-}
-
-IT(strip_alpha);
-#undef PT
-#define PT ITSTRUCT(strip_alpha)
-#endif /* PNG_READ_STRIP_ALPHA_SUPPORTED */
-
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
-/* png_set_rgb_to_gray(png_structp, int err_action, double red, double green)
- * png_set_rgb_to_gray_fixed(png_structp, int err_action, png_fixed_point red,
- * png_fixed_point green)
- * png_get_rgb_to_gray_status
- *
- * The 'default' test here uses values known to be used inside libpng prior to
- * 1.7.0:
- *
- * red: 6968
- * green: 23434
- * blue: 2366
- *
- * These values are being retained for compatibility, along with the somewhat
- * broken truncation calculation in the fast-and-inaccurate code path. Older
- * versions of libpng will fail the accuracy tests below because they use the
- * truncation algorithm everywhere.
- */
-#define data ITDATA(rgb_to_gray)
-static struct
-{
- double gamma; /* File gamma to use in processing */
-
- /* The following are the parameters for png_set_rgb_to_gray: */
-# ifdef PNG_FLOATING_POINT_SUPPORTED
- double red_to_set;
- double green_to_set;
-# else
- png_fixed_point red_to_set;
- png_fixed_point green_to_set;
-# endif
-
- /* The actual coefficients: */
- double red_coefficient;
- double green_coefficient;
- double blue_coefficient;
-
- /* Set if the coeefficients have been overridden. */
- int coefficients_overridden;
-} data;
-
-#undef image_transform_ini
-#define image_transform_ini image_transform_png_set_rgb_to_gray_ini
-static void
-image_transform_png_set_rgb_to_gray_ini(const image_transform *this,
- transform_display *that)
-{
- png_modifier *pm = that->pm;
- const color_encoding *e = pm->current_encoding;
-
- UNUSED(this)
-
- /* Since we check the encoding this flag must be set: */
- pm->test_uses_encoding = 1;
-
- /* If 'e' is not NULL chromaticity information is present and either a cHRM
- * or an sRGB chunk will be inserted.
- */
- if (e != 0)
- {
- /* Coefficients come from the encoding, but may need to be normalized to a
- * white point Y of 1.0
- */
- const double whiteY = e->red.Y + e->green.Y + e->blue.Y;
-
- data.red_coefficient = e->red.Y;
- data.green_coefficient = e->green.Y;
- data.blue_coefficient = e->blue.Y;
-
- if (whiteY != 1)
- {
- data.red_coefficient /= whiteY;
- data.green_coefficient /= whiteY;
- data.blue_coefficient /= whiteY;
- }
- }
-
- else
- {
- /* The default (built in) coeffcients, as above: */
-# if PNG_LIBPNG_VER < 10700
- data.red_coefficient = 6968 / 32768.;
- data.green_coefficient = 23434 / 32768.;
- data.blue_coefficient = 2366 / 32768.;
-# else
- data.red_coefficient = .2126;
- data.green_coefficient = .7152;
- data.blue_coefficient = .0722;
-# endif
- }
-
- data.gamma = pm->current_gamma;
-
- /* If not set then the calculations assume linear encoding (implicitly): */
- if (data.gamma == 0)
- data.gamma = 1;
-
- /* The arguments to png_set_rgb_to_gray can override the coefficients implied
- * by the color space encoding. If doing exhaustive checks do the override
- * in each case, otherwise do it randomly.
- */
- if (pm->test_exhaustive)
- {
- /* First time in coefficients_overridden is 0, the following sets it to 1,
- * so repeat if it is set. If a test fails this may mean we subsequently
- * skip a non-override test, ignore that.
- */
- data.coefficients_overridden = !data.coefficients_overridden;
- pm->repeat = data.coefficients_overridden != 0;
- }
-
- else
- data.coefficients_overridden = random_choice();
-
- if (data.coefficients_overridden)
- {
- /* These values override the color encoding defaults, simply use random
- * numbers.
- */
- png_uint_32 ru;
- double total;
-
- ru = random_u32();
- data.green_coefficient = total = (ru & 0xffff) / 65535.;
- ru >>= 16;
- data.red_coefficient = (1 - total) * (ru & 0xffff) / 65535.;
- total += data.red_coefficient;
- data.blue_coefficient = 1 - total;
-
-# ifdef PNG_FLOATING_POINT_SUPPORTED
- data.red_to_set = data.red_coefficient;
- data.green_to_set = data.green_coefficient;
-# else
- data.red_to_set = fix(data.red_coefficient);
- data.green_to_set = fix(data.green_coefficient);
-# endif
-
- /* The following just changes the error messages: */
- pm->encoding_ignored = 1;
- }
-
- else
- {
- data.red_to_set = -1;
- data.green_to_set = -1;
- }
-
- /* Adjust the error limit in the png_modifier because of the larger errors
- * produced in the digitization during the gamma handling.
- */
- if (data.gamma != 1) /* Use gamma tables */
- {
- if (that->this.bit_depth == 16 || pm->assume_16_bit_calculations)
- {
- /* The computations have the form:
- *
- * r * rc + g * gc + b * bc
- *
- * Each component of which is +/-1/65535 from the gamma_to_1 table
- * lookup, resulting in a base error of +/-6. The gamma_from_1
- * conversion adds another +/-2 in the 16-bit case and
- * +/-(1<<(15-PNG_MAX_GAMMA_8)) in the 8-bit case.
- */
-# if PNG_LIBPNG_VER < 10700
- if (that->this.bit_depth < 16)
- that->max_gamma_8 = PNG_MAX_GAMMA_8;
-# endif
- that->pm->limit += pow(
- (that->this.bit_depth == 16 || that->max_gamma_8 > 14 ?
- 8. :
- 6. + (1<<(15-that->max_gamma_8))
- )/65535, data.gamma);
- }
-
- else
- {
- /* Rounding to 8 bits in the linear space causes massive errors which
- * will trigger the error check in transform_range_check. Fix that
- * here by taking the gamma encoding into account.
- *
- * When DIGITIZE is set because a pre-1.7 version of libpng is being
- * tested allow a bigger slack.
- *
- * NOTE: this number only affects the internal limit check in pngvalid,
- * it has no effect on the limits applied to the libpng values.
- */
-#if DIGITIZE
- that->pm->limit += pow( 2.0/255, data.gamma);
-#else
- that->pm->limit += pow( 1.0/255, data.gamma);
-#endif
- }
- }
-
- else
- {
- /* With no gamma correction a large error comes from the truncation of the
- * calculation in the 8 bit case, allow for that here.
- */
- if (that->this.bit_depth != 16 && !pm->assume_16_bit_calculations)
- that->pm->limit += 4E-3;
- }
-}
-
-static void
-image_transform_png_set_rgb_to_gray_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- int error_action = 1; /* no error, no defines in png.h */
-
-# ifdef PNG_FLOATING_POINT_SUPPORTED
- png_set_rgb_to_gray(pp, error_action, data.red_to_set, data.green_to_set);
-# else
- png_set_rgb_to_gray_fixed(pp, error_action, data.red_to_set,
- data.green_to_set);
-# endif
-
-# ifdef PNG_READ_cHRM_SUPPORTED
- if (that->pm->current_encoding != 0)
- {
- /* We have an encoding so a cHRM chunk may have been set; if so then
- * check that the libpng APIs give the correct (X,Y,Z) values within
- * some margin of error for the round trip through the chromaticity
- * form.
- */
-# ifdef PNG_FLOATING_POINT_SUPPORTED
-# define API_function png_get_cHRM_XYZ
-# define API_form "FP"
-# define API_type double
-# define API_cvt(x) (x)
-# else
-# define API_function png_get_cHRM_XYZ_fixed
-# define API_form "fixed"
-# define API_type png_fixed_point
-# define API_cvt(x) ((double)(x)/PNG_FP_1)
-# endif
-
- API_type rX, gX, bX;
- API_type rY, gY, bY;
- API_type rZ, gZ, bZ;
-
- if ((API_function(pp, pi, &rX, &rY, &rZ, &gX, &gY, &gZ, &bX, &bY, &bZ)
- & PNG_INFO_cHRM) != 0)
- {
- double maxe;
- const char *el;
- color_encoding e, o;
-
- /* Expect libpng to return a normalized result, but the original
- * color space encoding may not be normalized.
- */
- modifier_current_encoding(that->pm, &o);
- normalize_color_encoding(&o);
-
- /* Sanity check the pngvalid code - the coefficients should match
- * the normalized Y values of the encoding unless they were
- * overridden.
- */
- if (data.red_to_set == -1 && data.green_to_set == -1 &&
- (fabs(o.red.Y - data.red_coefficient) > DBL_EPSILON ||
- fabs(o.green.Y - data.green_coefficient) > DBL_EPSILON ||
- fabs(o.blue.Y - data.blue_coefficient) > DBL_EPSILON))
- png_error(pp, "internal pngvalid cHRM coefficient error");
-
- /* Generate a colour space encoding. */
- e.gamma = o.gamma; /* not used */
- e.red.X = API_cvt(rX);
- e.red.Y = API_cvt(rY);
- e.red.Z = API_cvt(rZ);
- e.green.X = API_cvt(gX);
- e.green.Y = API_cvt(gY);
- e.green.Z = API_cvt(gZ);
- e.blue.X = API_cvt(bX);
- e.blue.Y = API_cvt(bY);
- e.blue.Z = API_cvt(bZ);
-
- /* This should match the original one from the png_modifier, within
- * the range permitted by the libpng fixed point representation.
- */
- maxe = 0;
- el = "-"; /* Set to element name with error */
-
-# define CHECK(col,x)\
- {\
- double err = fabs(o.col.x - e.col.x);\
- if (err > maxe)\
- {\
- maxe = err;\
- el = #col "(" #x ")";\
- }\
- }
-
- CHECK(red,X)
- CHECK(red,Y)
- CHECK(red,Z)
- CHECK(green,X)
- CHECK(green,Y)
- CHECK(green,Z)
- CHECK(blue,X)
- CHECK(blue,Y)
- CHECK(blue,Z)
-
- /* Here in both fixed and floating cases to check the values read
- * from the cHRm chunk. PNG uses fixed point in the cHRM chunk, so
- * we can't expect better than +/-.5E-5 on the result, allow 1E-5.
- */
- if (maxe >= 1E-5)
- {
- size_t pos = 0;
- char buffer[256];
-
- pos = safecat(buffer, sizeof buffer, pos, API_form);
- pos = safecat(buffer, sizeof buffer, pos, " cHRM ");
- pos = safecat(buffer, sizeof buffer, pos, el);
- pos = safecat(buffer, sizeof buffer, pos, " error: ");
- pos = safecatd(buffer, sizeof buffer, pos, maxe, 7);
- pos = safecat(buffer, sizeof buffer, pos, " ");
- /* Print the color space without the gamma value: */
- pos = safecat_color_encoding(buffer, sizeof buffer, pos, &o, 0);
- pos = safecat(buffer, sizeof buffer, pos, " -> ");
- pos = safecat_color_encoding(buffer, sizeof buffer, pos, &e, 0);
-
- png_error(pp, buffer);
- }
- }
- }
-# endif /* READ_cHRM */
-
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_rgb_to_gray_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- if ((that->colour_type & PNG_COLOR_MASK_COLOR) != 0)
- {
- double gray, err;
-
-# if PNG_LIBPNG_VER < 10700
- if (that->colour_type == PNG_COLOR_TYPE_PALETTE)
- image_pixel_convert_PLTE(that);
-# endif
-
- /* Image now has RGB channels... */
-# if DIGITIZE
- {
- png_modifier *pm = display->pm;
- unsigned int sample_depth = that->sample_depth;
- unsigned int calc_depth = (pm->assume_16_bit_calculations ? 16 :
- sample_depth);
- unsigned int gamma_depth =
- (sample_depth == 16 ?
- display->max_gamma_8 :
- (pm->assume_16_bit_calculations ?
- display->max_gamma_8 :
- sample_depth));
- int isgray;
- double r, g, b;
- double rlo, rhi, glo, ghi, blo, bhi, graylo, grayhi;
-
- /* Do this using interval arithmetic, otherwise it is too difficult to
- * handle the errors correctly.
- *
- * To handle the gamma correction work out the upper and lower bounds
- * of the digitized value. Assume rounding here - normally the values
- * will be identical after this operation if there is only one
- * transform, feel free to delete the png_error checks on this below in
- * the future (this is just me trying to ensure it works!)
- *
- * Interval arithmetic is exact, but to implement it it must be
- * possible to control the floating point implementation rounding mode.
- * This cannot be done in ANSI-C, so instead I reduce the 'lo' values
- * by DBL_EPSILON and increase the 'hi' values by the same.
- */
-# define DD(v,d,r) (digitize(v*(1-DBL_EPSILON), d, r) * (1-DBL_EPSILON))
-# define DU(v,d,r) (digitize(v*(1+DBL_EPSILON), d, r) * (1+DBL_EPSILON))
-
- r = rlo = rhi = that->redf;
- rlo -= that->rede;
- rlo = DD(rlo, calc_depth, 1/*round*/);
- rhi += that->rede;
- rhi = DU(rhi, calc_depth, 1/*round*/);
-
- g = glo = ghi = that->greenf;
- glo -= that->greene;
- glo = DD(glo, calc_depth, 1/*round*/);
- ghi += that->greene;
- ghi = DU(ghi, calc_depth, 1/*round*/);
-
- b = blo = bhi = that->bluef;
- blo -= that->bluee;
- blo = DD(blo, calc_depth, 1/*round*/);
- bhi += that->bluee;
- bhi = DU(bhi, calc_depth, 1/*round*/);
-
- isgray = r==g && g==b;
-
- if (data.gamma != 1)
- {
- const double power = 1/data.gamma;
- const double abse = .5/(sample_depth == 16 ? 65535 : 255);
-
- /* If a gamma calculation is done it is done using lookup tables of
- * precision gamma_depth, so the already digitized value above may
- * need to be further digitized here.
- */
- if (gamma_depth != calc_depth)
- {
- rlo = DD(rlo, gamma_depth, 0/*truncate*/);
- rhi = DU(rhi, gamma_depth, 0/*truncate*/);
- glo = DD(glo, gamma_depth, 0/*truncate*/);
- ghi = DU(ghi, gamma_depth, 0/*truncate*/);
- blo = DD(blo, gamma_depth, 0/*truncate*/);
- bhi = DU(bhi, gamma_depth, 0/*truncate*/);
- }
-
- /* 'abse' is the error in the gamma table calculation itself. */
- r = pow(r, power);
- rlo = DD(pow(rlo, power)-abse, calc_depth, 1);
- rhi = DU(pow(rhi, power)+abse, calc_depth, 1);
-
- g = pow(g, power);
- glo = DD(pow(glo, power)-abse, calc_depth, 1);
- ghi = DU(pow(ghi, power)+abse, calc_depth, 1);
-
- b = pow(b, power);
- blo = DD(pow(blo, power)-abse, calc_depth, 1);
- bhi = DU(pow(bhi, power)+abse, calc_depth, 1);
- }
-
- /* Now calculate the actual gray values. Although the error in the
- * coefficients depends on whether they were specified on the command
- * line (in which case truncation to 15 bits happened) or not (rounding
- * was used) the maximum error in an individual coefficient is always
- * 2/32768, because even in the rounding case the requirement that
- * coefficients add up to 32768 can cause a larger rounding error.
- *
- * The only time when rounding doesn't occur in 1.5.5 and later is when
- * the non-gamma code path is used for less than 16 bit data.
- */
- gray = r * data.red_coefficient + g * data.green_coefficient +
- b * data.blue_coefficient;
-
- {
- int do_round = data.gamma != 1 || calc_depth == 16;
- const double ce = 2. / 32768;
-
- graylo = DD(rlo * (data.red_coefficient-ce) +
- glo * (data.green_coefficient-ce) +
- blo * (data.blue_coefficient-ce), calc_depth, do_round);
- if (graylo > gray) /* always accept the right answer */
- graylo = gray;
-
- grayhi = DU(rhi * (data.red_coefficient+ce) +
- ghi * (data.green_coefficient+ce) +
- bhi * (data.blue_coefficient+ce), calc_depth, do_round);
- if (grayhi < gray)
- grayhi = gray;
- }
-
- /* And invert the gamma. */
- if (data.gamma != 1)
- {
- const double power = data.gamma;
-
- /* And this happens yet again, shifting the values once more. */
- if (gamma_depth != sample_depth)
- {
- rlo = DD(rlo, gamma_depth, 0/*truncate*/);
- rhi = DU(rhi, gamma_depth, 0/*truncate*/);
- glo = DD(glo, gamma_depth, 0/*truncate*/);
- ghi = DU(ghi, gamma_depth, 0/*truncate*/);
- blo = DD(blo, gamma_depth, 0/*truncate*/);
- bhi = DU(bhi, gamma_depth, 0/*truncate*/);
- }
-
- gray = pow(gray, power);
- graylo = DD(pow(graylo, power), sample_depth, 1);
- grayhi = DU(pow(grayhi, power), sample_depth, 1);
- }
-
-# undef DD
-# undef DU
-
- /* Now the error can be calculated.
- *
- * If r==g==b because there is no overall gamma correction libpng
- * currently preserves the original value.
- */
- if (isgray)
- err = (that->rede + that->greene + that->bluee)/3;
-
- else
- {
- err = fabs(grayhi-gray);
-
- if (fabs(gray - graylo) > err)
- err = fabs(graylo-gray);
-
-#if !RELEASE_BUILD
- /* Check that this worked: */
- if (err > pm->limit)
- {
- size_t pos = 0;
- char buffer[128];
-
- pos = safecat(buffer, sizeof buffer, pos, "rgb_to_gray error ");
- pos = safecatd(buffer, sizeof buffer, pos, err, 6);
- pos = safecat(buffer, sizeof buffer, pos, " exceeds limit ");
- pos = safecatd(buffer, sizeof buffer, pos, pm->limit, 6);
- png_warning(pp, buffer);
- pm->limit = err;
- }
-#endif /* !RELEASE_BUILD */
- }
- }
-# else /* !DIGITIZE */
- {
- double r = that->redf;
- double re = that->rede;
- double g = that->greenf;
- double ge = that->greene;
- double b = that->bluef;
- double be = that->bluee;
-
-# if PNG_LIBPNG_VER < 10700
- /* The true gray case involves no math in earlier versions (not
- * true, there was some if gamma correction was happening too.)
- */
- if (r == g && r == b)
- {
- gray = r;
- err = re;
- if (err < ge) err = ge;
- if (err < be) err = be;
- }
-
- else
-# endif /* before 1.7 */
- if (data.gamma == 1)
- {
- /* There is no need to do the conversions to and from linear space,
- * so the calculation should be a lot more accurate. There is a
- * built in error in the coefficients because they only have 15 bits
- * and are adjusted to make sure they add up to 32768. This
- * involves a integer calculation with truncation of the form:
- *
- * ((int)(coefficient * 100000) * 32768)/100000
- *
- * This is done to the red and green coefficients (the ones
- * provided to the API) then blue is calculated from them so the
- * result adds up to 32768. In the worst case this can result in
- * a -1 error in red and green and a +2 error in blue. Consequently
- * the worst case in the calculation below is 2/32768 error.
- *
- * TODO: consider fixing this in libpng by rounding the calculation
- * limiting the error to 1/32768.
- *
- * Handling this by adding 2/32768 here avoids needing to increase
- * the global error limits to take this into account.)
- */
- gray = r * data.red_coefficient + g * data.green_coefficient +
- b * data.blue_coefficient;
- err = re * data.red_coefficient + ge * data.green_coefficient +
- be * data.blue_coefficient + 2./32768 + gray * 5 * DBL_EPSILON;
- }
-
- else
- {
- /* The calculation happens in linear space, and this produces much
- * wider errors in the encoded space. These are handled here by
- * factoring the errors in to the calculation. There are two table
- * lookups in the calculation and each introduces a quantization
- * error defined by the table size.
- */
- png_modifier *pm = display->pm;
- double in_qe = (that->sample_depth > 8 ? .5/65535 : .5/255);
- double out_qe = (that->sample_depth > 8 ? .5/65535 :
- (pm->assume_16_bit_calculations ? .5/(1<<display->max_gamma_8) :
- .5/255));
- double rhi, ghi, bhi, grayhi;
- double g1 = 1/data.gamma;
-
- rhi = r + re + in_qe; if (rhi > 1) rhi = 1;
- r -= re + in_qe; if (r < 0) r = 0;
- ghi = g + ge + in_qe; if (ghi > 1) ghi = 1;
- g -= ge + in_qe; if (g < 0) g = 0;
- bhi = b + be + in_qe; if (bhi > 1) bhi = 1;
- b -= be + in_qe; if (b < 0) b = 0;
-
- r = pow(r, g1)*(1-DBL_EPSILON); rhi = pow(rhi, g1)*(1+DBL_EPSILON);
- g = pow(g, g1)*(1-DBL_EPSILON); ghi = pow(ghi, g1)*(1+DBL_EPSILON);
- b = pow(b, g1)*(1-DBL_EPSILON); bhi = pow(bhi, g1)*(1+DBL_EPSILON);
-
- /* Work out the lower and upper bounds for the gray value in the
- * encoded space, then work out an average and error. Remove the
- * previously added input quantization error at this point.
- */
- gray = r * data.red_coefficient + g * data.green_coefficient +
- b * data.blue_coefficient - 2./32768 - out_qe;
- if (gray <= 0)
- gray = 0;
- else
- {
- gray *= (1 - 6 * DBL_EPSILON);
- gray = pow(gray, data.gamma) * (1-DBL_EPSILON);
- }
-
- grayhi = rhi * data.red_coefficient + ghi * data.green_coefficient +
- bhi * data.blue_coefficient + 2./32768 + out_qe;
- grayhi *= (1 + 6 * DBL_EPSILON);
- if (grayhi >= 1)
- grayhi = 1;
- else
- grayhi = pow(grayhi, data.gamma) * (1+DBL_EPSILON);
-
- err = (grayhi - gray) / 2;
- gray = (grayhi + gray) / 2;
-
- if (err <= in_qe)
- err = gray * DBL_EPSILON;
-
- else
- err -= in_qe;
-
-#if !RELEASE_BUILD
- /* Validate that the error is within limits (this has caused
- * problems before, it's much easier to detect them here.)
- */
- if (err > pm->limit)
- {
- size_t pos = 0;
- char buffer[128];
-
- pos = safecat(buffer, sizeof buffer, pos, "rgb_to_gray error ");
- pos = safecatd(buffer, sizeof buffer, pos, err, 6);
- pos = safecat(buffer, sizeof buffer, pos, " exceeds limit ");
- pos = safecatd(buffer, sizeof buffer, pos, pm->limit, 6);
- png_warning(pp, buffer);
- pm->limit = err;
- }
-#endif /* !RELEASE_BUILD */
- }
- }
-# endif /* !DIGITIZE */
-
- that->bluef = that->greenf = that->redf = gray;
- that->bluee = that->greene = that->rede = err;
-
- /* The sBIT is the minimum of the three colour channel sBITs. */
- if (that->red_sBIT > that->green_sBIT)
- that->red_sBIT = that->green_sBIT;
- if (that->red_sBIT > that->blue_sBIT)
- that->red_sBIT = that->blue_sBIT;
- that->blue_sBIT = that->green_sBIT = that->red_sBIT;
-
- /* And remove the colour bit in the type: */
- if (that->colour_type == PNG_COLOR_TYPE_RGB)
- that->colour_type = PNG_COLOR_TYPE_GRAY;
- else if (that->colour_type == PNG_COLOR_TYPE_RGB_ALPHA)
- that->colour_type = PNG_COLOR_TYPE_GRAY_ALPHA;
- }
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_rgb_to_gray_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(bit_depth)
-
- this->next = *that;
- *that = this;
-
- return (colour_type & PNG_COLOR_MASK_COLOR) != 0;
-}
-
-#undef data
-IT(rgb_to_gray);
-#undef PT
-#define PT ITSTRUCT(rgb_to_gray)
-#undef image_transform_ini
-#define image_transform_ini image_transform_default_ini
-#endif /* PNG_READ_RGB_TO_GRAY_SUPPORTED */
-
-#ifdef PNG_READ_BACKGROUND_SUPPORTED
-/* png_set_background(png_structp, png_const_color_16p background_color,
- * int background_gamma_code, int need_expand, double background_gamma)
- * png_set_background_fixed(png_structp, png_const_color_16p background_color,
- * int background_gamma_code, int need_expand,
- * png_fixed_point background_gamma)
- *
- * This ignores the gamma (at present.)
-*/
-#define data ITDATA(background)
-static image_pixel data;
-
-static void
-image_transform_png_set_background_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_byte colour_type, bit_depth;
- png_byte random_bytes[8]; /* 8 bytes - 64 bits - the biggest pixel */
- int expand;
- png_color_16 back;
-
- /* We need a background colour, because we don't know exactly what transforms
- * have been set we have to supply the colour in the original file format and
- * so we need to know what that is! The background colour is stored in the
- * transform_display.
- */
- R8(random_bytes);
-
- /* Read the random value, for colour type 3 the background colour is actually
- * expressed as a 24bit rgb, not an index.
- */
- colour_type = that->this.colour_type;
- if (colour_type == 3)
- {
- colour_type = PNG_COLOR_TYPE_RGB;
- bit_depth = 8;
- expand = 0; /* passing in an RGB not a pixel index */
- }
-
- else
- {
- if (that->this.has_tRNS)
- that->this.is_transparent = 1;
-
- bit_depth = that->this.bit_depth;
- expand = 1;
- }
-
- image_pixel_init(&data, random_bytes, colour_type,
- bit_depth, 0/*x*/, 0/*unused: palette*/, NULL/*format*/);
-
- /* Extract the background colour from this image_pixel, but make sure the
- * unused fields of 'back' are garbage.
- */
- R8(back);
-
- if (colour_type & PNG_COLOR_MASK_COLOR)
- {
- back.red = (png_uint_16)data.red;
- back.green = (png_uint_16)data.green;
- back.blue = (png_uint_16)data.blue;
- }
-
- else
- back.gray = (png_uint_16)data.red;
-
-#ifdef PNG_FLOATING_POINT_SUPPORTED
- png_set_background(pp, &back, PNG_BACKGROUND_GAMMA_FILE, expand, 0);
-#else
- png_set_background_fixed(pp, &back, PNG_BACKGROUND_GAMMA_FILE, expand, 0);
-#endif
-
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_background_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- /* Check for tRNS first: */
- if (that->have_tRNS && that->colour_type != PNG_COLOR_TYPE_PALETTE)
- image_pixel_add_alpha(that, &display->this, 1/*for background*/);
-
- /* This is only necessary if the alpha value is less than 1. */
- if (that->alphaf < 1)
- {
- /* Now we do the background calculation without any gamma correction. */
- if (that->alphaf <= 0)
- {
- that->redf = data.redf;
- that->greenf = data.greenf;
- that->bluef = data.bluef;
-
- that->rede = data.rede;
- that->greene = data.greene;
- that->bluee = data.bluee;
-
- that->red_sBIT= data.red_sBIT;
- that->green_sBIT= data.green_sBIT;
- that->blue_sBIT= data.blue_sBIT;
- }
-
- else /* 0 < alpha < 1 */
- {
- double alf = 1 - that->alphaf;
-
- that->redf = that->redf * that->alphaf + data.redf * alf;
- that->rede = that->rede * that->alphaf + data.rede * alf +
- DBL_EPSILON;
- that->greenf = that->greenf * that->alphaf + data.greenf * alf;
- that->greene = that->greene * that->alphaf + data.greene * alf +
- DBL_EPSILON;
- that->bluef = that->bluef * that->alphaf + data.bluef * alf;
- that->bluee = that->bluee * that->alphaf + data.bluee * alf +
- DBL_EPSILON;
- }
-
- /* Remove the alpha type and set the alpha (not in that order.) */
- that->alphaf = 1;
- that->alphae = 0;
- }
-
- if (that->colour_type == PNG_COLOR_TYPE_RGB_ALPHA)
- that->colour_type = PNG_COLOR_TYPE_RGB;
- else if (that->colour_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- that->colour_type = PNG_COLOR_TYPE_GRAY;
- /* PNG_COLOR_TYPE_PALETTE is not changed */
-
- this->next->mod(this->next, that, pp, display);
-}
-
-#define image_transform_png_set_background_add image_transform_default_add
-
-#undef data
-IT(background);
-#undef PT
-#define PT ITSTRUCT(background)
-#endif /* PNG_READ_BACKGROUND_SUPPORTED */
-
-/* png_set_quantize(png_structp, png_colorp palette, int num_palette,
- * int maximum_colors, png_const_uint_16p histogram, int full_quantize)
- *
- * Very difficult to validate this!
- */
-/*NOTE: TBD NYI */
-
-/* The data layout transforms are handled by swapping our own channel data,
- * necessarily these need to happen at the end of the transform list because the
- * semantic of the channels changes after these are executed. Some of these,
- * like set_shift and set_packing, can't be done at present because they change
- * the layout of the data at the sub-sample level so sample() won't get the
- * right answer.
- */
-/* png_set_invert_alpha */
-#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
-/* Invert the alpha channel
- *
- * png_set_invert_alpha(png_structrp png_ptr)
- */
-static void
-image_transform_png_set_invert_alpha_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_invert_alpha(pp);
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_invert_alpha_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- if (that->colour_type & 4)
- that->alpha_inverted = 1;
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_invert_alpha_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(bit_depth)
-
- this->next = *that;
- *that = this;
-
- /* Only has an effect on pixels with alpha: */
- return (colour_type & 4) != 0;
-}
-
-IT(invert_alpha);
-#undef PT
-#define PT ITSTRUCT(invert_alpha)
-
-#endif /* PNG_READ_INVERT_ALPHA_SUPPORTED */
-
-/* png_set_bgr */
-#ifdef PNG_READ_BGR_SUPPORTED
-/* Swap R,G,B channels to order B,G,R.
- *
- * png_set_bgr(png_structrp png_ptr)
- *
- * This only has an effect on RGB and RGBA pixels.
- */
-static void
-image_transform_png_set_bgr_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_bgr(pp);
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_bgr_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- if (that->colour_type == PNG_COLOR_TYPE_RGB ||
- that->colour_type == PNG_COLOR_TYPE_RGBA)
- that->swap_rgb = 1;
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_bgr_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(bit_depth)
-
- this->next = *that;
- *that = this;
-
- return colour_type == PNG_COLOR_TYPE_RGB ||
- colour_type == PNG_COLOR_TYPE_RGBA;
-}
-
-IT(bgr);
-#undef PT
-#define PT ITSTRUCT(bgr)
-
-#endif /* PNG_READ_BGR_SUPPORTED */
-
-/* png_set_swap_alpha */
-#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED
-/* Put the alpha channel first.
- *
- * png_set_swap_alpha(png_structrp png_ptr)
- *
- * This only has an effect on GA and RGBA pixels.
- */
-static void
-image_transform_png_set_swap_alpha_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_swap_alpha(pp);
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_swap_alpha_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- if (that->colour_type == PNG_COLOR_TYPE_GA ||
- that->colour_type == PNG_COLOR_TYPE_RGBA)
- that->alpha_first = 1;
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_swap_alpha_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(bit_depth)
-
- this->next = *that;
- *that = this;
-
- return colour_type == PNG_COLOR_TYPE_GA ||
- colour_type == PNG_COLOR_TYPE_RGBA;
-}
-
-IT(swap_alpha);
-#undef PT
-#define PT ITSTRUCT(swap_alpha)
-
-#endif /* PNG_READ_SWAP_ALPHA_SUPPORTED */
-
-/* png_set_swap */
-#ifdef PNG_READ_SWAP_SUPPORTED
-/* Byte swap 16-bit components.
- *
- * png_set_swap(png_structrp png_ptr)
- */
-static void
-image_transform_png_set_swap_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_swap(pp);
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_swap_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- if (that->bit_depth == 16)
- that->swap16 = 1;
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_swap_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(colour_type)
-
- this->next = *that;
- *that = this;
-
- return bit_depth == 16;
-}
-
-IT(swap);
-#undef PT
-#define PT ITSTRUCT(swap)
-
-#endif /* PNG_READ_SWAP_SUPPORTED */
-
-#ifdef PNG_READ_FILLER_SUPPORTED
-/* Add a filler byte to 8-bit Gray or 24-bit RGB images.
- *
- * png_set_filler, (png_structp png_ptr, png_uint_32 filler, int flags));
- *
- * Flags:
- *
- * PNG_FILLER_BEFORE
- * PNG_FILLER_AFTER
- */
-#define data ITDATA(filler)
-static struct
-{
- png_uint_32 filler;
- int flags;
-} data;
-
-static void
-image_transform_png_set_filler_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- /* Need a random choice for 'before' and 'after' as well as for the
- * filler. The 'filler' value has all 32 bits set, but only bit_depth
- * will be used. At this point we don't know bit_depth.
- */
- data.filler = random_u32();
- data.flags = random_choice();
-
- png_set_filler(pp, data.filler, data.flags);
-
- /* The standard display handling stuff also needs to know that
- * there is a filler, so set that here.
- */
- that->this.filler = 1;
-
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_filler_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- if (that->bit_depth >= 8 &&
- (that->colour_type == PNG_COLOR_TYPE_RGB ||
- that->colour_type == PNG_COLOR_TYPE_GRAY))
- {
- unsigned int max = (1U << that->bit_depth)-1;
- that->alpha = data.filler & max;
- that->alphaf = ((double)that->alpha) / max;
- that->alphae = 0;
-
- /* The filler has been stored in the alpha channel, we must record
- * that this has been done for the checking later on, the color
- * type is faked to have an alpha channel, but libpng won't report
- * this; the app has to know the extra channel is there and this
- * was recording in standard_display::filler above.
- */
- that->colour_type |= 4; /* alpha added */
- that->alpha_first = data.flags == PNG_FILLER_BEFORE;
- }
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_filler_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- this->next = *that;
- *that = this;
-
- return bit_depth >= 8 && (colour_type == PNG_COLOR_TYPE_RGB ||
- colour_type == PNG_COLOR_TYPE_GRAY);
-}
-
-#undef data
-IT(filler);
-#undef PT
-#define PT ITSTRUCT(filler)
-
-/* png_set_add_alpha, (png_structp png_ptr, png_uint_32 filler, int flags)); */
-/* Add an alpha byte to 8-bit Gray or 24-bit RGB images. */
-#define data ITDATA(add_alpha)
-static struct
-{
- png_uint_32 filler;
- int flags;
-} data;
-
-static void
-image_transform_png_set_add_alpha_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- /* Need a random choice for 'before' and 'after' as well as for the
- * filler. The 'filler' value has all 32 bits set, but only bit_depth
- * will be used. At this point we don't know bit_depth.
- */
- data.filler = random_u32();
- data.flags = random_choice();
-
- png_set_add_alpha(pp, data.filler, data.flags);
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_add_alpha_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- if (that->bit_depth >= 8 &&
- (that->colour_type == PNG_COLOR_TYPE_RGB ||
- that->colour_type == PNG_COLOR_TYPE_GRAY))
- {
- unsigned int max = (1U << that->bit_depth)-1;
- that->alpha = data.filler & max;
- that->alphaf = ((double)that->alpha) / max;
- that->alphae = 0;
-
- that->colour_type |= 4; /* alpha added */
- that->alpha_first = data.flags == PNG_FILLER_BEFORE;
- }
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_add_alpha_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- this->next = *that;
- *that = this;
-
- return bit_depth >= 8 && (colour_type == PNG_COLOR_TYPE_RGB ||
- colour_type == PNG_COLOR_TYPE_GRAY);
-}
-
-#undef data
-IT(add_alpha);
-#undef PT
-#define PT ITSTRUCT(add_alpha)
-
-#endif /* PNG_READ_FILLER_SUPPORTED */
-
-/* png_set_packing */
-#ifdef PNG_READ_PACK_SUPPORTED
-/* Use 1 byte per pixel in 1, 2, or 4-bit depth files.
- *
- * png_set_packing(png_structrp png_ptr)
- *
- * This should only affect grayscale and palette images with less than 8 bits
- * per pixel.
- */
-static void
-image_transform_png_set_packing_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_packing(pp);
- that->unpacked = 1;
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_packing_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- /* The general expand case depends on what the colour type is,
- * low bit-depth pixel values are unpacked into bytes without
- * scaling, so sample_depth is not changed.
- */
- if (that->bit_depth < 8) /* grayscale or palette */
- that->bit_depth = 8;
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_packing_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(colour_type)
-
- this->next = *that;
- *that = this;
-
- /* Nothing should happen unless the bit depth is less than 8: */
- return bit_depth < 8;
-}
-
-IT(packing);
-#undef PT
-#define PT ITSTRUCT(packing)
-
-#endif /* PNG_READ_PACK_SUPPORTED */
-
-/* png_set_packswap */
-#ifdef PNG_READ_PACKSWAP_SUPPORTED
-/* Swap pixels packed into bytes; reverses the order on screen so that
- * the high order bits correspond to the rightmost pixels.
- *
- * png_set_packswap(png_structrp png_ptr)
- */
-static void
-image_transform_png_set_packswap_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_packswap(pp);
- that->this.littleendian = 1;
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_packswap_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- if (that->bit_depth < 8)
- that->littleendian = 1;
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_packswap_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(colour_type)
-
- this->next = *that;
- *that = this;
-
- return bit_depth < 8;
-}
-
-IT(packswap);
-#undef PT
-#define PT ITSTRUCT(packswap)
-
-#endif /* PNG_READ_PACKSWAP_SUPPORTED */
-
-
-/* png_set_invert_mono */
-#ifdef PNG_READ_INVERT_MONO_SUPPORTED
-/* Invert the gray channel
- *
- * png_set_invert_mono(png_structrp png_ptr)
- */
-static void
-image_transform_png_set_invert_mono_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_invert_mono(pp);
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_invert_mono_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- if (that->colour_type & 4)
- that->mono_inverted = 1;
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_invert_mono_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(bit_depth)
-
- this->next = *that;
- *that = this;
-
- /* Only has an effect on pixels with no colour: */
- return (colour_type & 2) == 0;
-}
-
-IT(invert_mono);
-#undef PT
-#define PT ITSTRUCT(invert_mono)
-
-#endif /* PNG_READ_INVERT_MONO_SUPPORTED */
-
-#ifdef PNG_READ_SHIFT_SUPPORTED
-/* png_set_shift(png_structp, png_const_color_8p true_bits)
- *
- * The output pixels will be shifted by the given true_bits
- * values.
- */
-#define data ITDATA(shift)
-static png_color_8 data;
-
-static void
-image_transform_png_set_shift_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- /* Get a random set of shifts. The shifts need to do something
- * to test the transform, so they are limited to the bit depth
- * of the input image. Notice that in the following the 'gray'
- * field is randomized independently. This acts as a check that
- * libpng does use the correct field.
- */
- unsigned int depth = that->this.bit_depth;
-
- data.red = (png_byte)/*SAFE*/(random_mod(depth)+1);
- data.green = (png_byte)/*SAFE*/(random_mod(depth)+1);
- data.blue = (png_byte)/*SAFE*/(random_mod(depth)+1);
- data.gray = (png_byte)/*SAFE*/(random_mod(depth)+1);
- data.alpha = (png_byte)/*SAFE*/(random_mod(depth)+1);
-
- png_set_shift(pp, &data);
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_shift_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- /* Copy the correct values into the sBIT fields, libpng does not do
- * anything to palette data:
- */
- if (that->colour_type != PNG_COLOR_TYPE_PALETTE)
- {
- that->sig_bits = 1;
-
- /* The sBIT fields are reset to the values previously sent to
- * png_set_shift according to the colour type.
- * does.
- */
- if (that->colour_type & 2) /* RGB channels */
- {
- that->red_sBIT = data.red;
- that->green_sBIT = data.green;
- that->blue_sBIT = data.blue;
- }
-
- else /* One grey channel */
- that->red_sBIT = that->green_sBIT = that->blue_sBIT = data.gray;
-
- that->alpha_sBIT = data.alpha;
- }
-
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_shift_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- UNUSED(bit_depth)
-
- this->next = *that;
- *that = this;
-
- return colour_type != PNG_COLOR_TYPE_PALETTE;
-}
-
-IT(shift);
-#undef PT
-#define PT ITSTRUCT(shift)
-
-#endif /* PNG_READ_SHIFT_SUPPORTED */
-
-#ifdef THIS_IS_THE_PROFORMA
-static void
-image_transform_png_set_@_set(const image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_@(pp);
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_@_mod(const image_transform *this,
- image_pixel *that, png_const_structp pp,
- const transform_display *display)
-{
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_@_add(image_transform *this,
- const image_transform **that, png_byte colour_type, png_byte bit_depth)
-{
- this->next = *that;
- *that = this;
-
- return 1;
-}
-
-IT(@);
-#endif
-
-
-/* This may just be 'end' if all the transforms are disabled! */
-static image_transform *const image_transform_first = &PT;
-
-static void
-transform_enable(const char *name)
-{
- /* Everything starts out enabled, so if we see an 'enable' disabled
- * everything else the first time round.
- */
- static int all_disabled = 0;
- int found_it = 0;
- image_transform *list = image_transform_first;
-
- while (list != &image_transform_end)
- {
- if (strcmp(list->name, name) == 0)
- {
- list->enable = 1;
- found_it = 1;
- }
- else if (!all_disabled)
- list->enable = 0;
-
- list = list->list;
- }
-
- all_disabled = 1;
-
- if (!found_it)
- {
- fprintf(stderr, "pngvalid: --transform-enable=%s: unknown transform\n",
- name);
- exit(99);
- }
-}
-
-static void
-transform_disable(const char *name)
-{
- image_transform *list = image_transform_first;
-
- while (list != &image_transform_end)
- {
- if (strcmp(list->name, name) == 0)
- {
- list->enable = 0;
- return;
- }
-
- list = list->list;
- }
-
- fprintf(stderr, "pngvalid: --transform-disable=%s: unknown transform\n",
- name);
- exit(99);
-}
-
-static void
-image_transform_reset_count(void)
-{
- image_transform *next = image_transform_first;
- int count = 0;
-
- while (next != &image_transform_end)
- {
- next->local_use = 0;
- next->next = 0;
- next = next->list;
- ++count;
- }
-
- /* This can only happen if we every have more than 32 transforms (excluding
- * the end) in the list.
- */
- if (count > 32) abort();
-}
-
-static int
-image_transform_test_counter(png_uint_32 counter, unsigned int max)
-{
- /* Test the list to see if there is any point contining, given a current
- * counter and a 'max' value.
- */
- image_transform *next = image_transform_first;
-
- while (next != &image_transform_end)
- {
- /* For max 0 or 1 continue until the counter overflows: */
- counter >>= 1;
-
- /* Continue if any entry hasn't reacked the max. */
- if (max > 1 && next->local_use < max)
- return 1;
- next = next->list;
- }
-
- return max <= 1 && counter == 0;
-}
-
-static png_uint_32
-image_transform_add(const image_transform **this, unsigned int max,
- png_uint_32 counter, char *name, size_t sizeof_name, size_t *pos,
- png_byte colour_type, png_byte bit_depth)
-{
- for (;;) /* until we manage to add something */
- {
- png_uint_32 mask;
- image_transform *list;
-
- /* Find the next counter value, if the counter is zero this is the start
- * of the list. This routine always returns the current counter (not the
- * next) so it returns 0 at the end and expects 0 at the beginning.
- */
- if (counter == 0) /* first time */
- {
- image_transform_reset_count();
- if (max <= 1)
- counter = 1;
- else
- counter = random_32();
- }
- else /* advance the counter */
- {
- switch (max)
- {
- case 0: ++counter; break;
- case 1: counter <<= 1; break;
- default: counter = random_32(); break;
- }
- }
-
- /* Now add all these items, if possible */
- *this = &image_transform_end;
- list = image_transform_first;
- mask = 1;
-
- /* Go through the whole list adding anything that the counter selects: */
- while (list != &image_transform_end)
- {
- if ((counter & mask) != 0 && list->enable &&
- (max == 0 || list->local_use < max))
- {
- /* Candidate to add: */
- if (list->add(list, this, colour_type, bit_depth) || max == 0)
- {
- /* Added, so add to the name too. */
- *pos = safecat(name, sizeof_name, *pos, " +");
- *pos = safecat(name, sizeof_name, *pos, list->name);
- }
-
- else
- {
- /* Not useful and max>0, so remove it from *this: */
- *this = list->next;
- list->next = 0;
-
- /* And, since we know it isn't useful, stop it being added again
- * in this run:
- */
- list->local_use = max;
- }
- }
-
- mask <<= 1;
- list = list->list;
- }
-
- /* Now if anything was added we have something to do. */
- if (*this != &image_transform_end)
- return counter;
-
- /* Nothing added, but was there anything in there to add? */
- if (!image_transform_test_counter(counter, max))
- return 0;
- }
-}
-
-static void
-perform_transform_test(png_modifier *pm)
-{
- png_byte colour_type = 0;
- png_byte bit_depth = 0;
- unsigned int palette_number = 0;
-
- while (next_format(&colour_type, &bit_depth, &palette_number, pm->test_lbg,
- pm->test_tRNS))
- {
- png_uint_32 counter = 0;
- size_t base_pos;
- char name[64];
-
- base_pos = safecat(name, sizeof name, 0, "transform:");
-
- for (;;)
- {
- size_t pos = base_pos;
- const image_transform *list = 0;
-
- /* 'max' is currently hardwired to '1'; this should be settable on the
- * command line.
- */
- counter = image_transform_add(&list, 1/*max*/, counter,
- name, sizeof name, &pos, colour_type, bit_depth);
-
- if (counter == 0)
- break;
-
- /* The command line can change this to checking interlaced images. */
- do
- {
- pm->repeat = 0;
- transform_test(pm, FILEID(colour_type, bit_depth, palette_number,
- pm->interlace_type, 0, 0, 0), list, name);
-
- if (fail(pm))
- return;
- }
- while (pm->repeat);
- }
- }
-}
-#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
-
-/********************************* GAMMA TESTS ********************************/
-#ifdef PNG_READ_GAMMA_SUPPORTED
-/* Reader callbacks and implementations, where they differ from the standard
- * ones.
- */
-typedef struct gamma_display
-{
- standard_display this;
-
- /* Parameters */
- png_modifier* pm;
- double file_gamma;
- double screen_gamma;
- double background_gamma;
- png_byte sbit;
- int threshold_test;
- int use_input_precision;
- int scale16;
- int expand16;
- int do_background;
- png_color_16 background_color;
-
- /* Local variables */
- double maxerrout;
- double maxerrpc;
- double maxerrabs;
-} gamma_display;
-
-#define ALPHA_MODE_OFFSET 4
-
-static void
-gamma_display_init(gamma_display *dp, png_modifier *pm, png_uint_32 id,
- double file_gamma, double screen_gamma, png_byte sbit, int threshold_test,
- int use_input_precision, int scale16, int expand16,
- int do_background, const png_color_16 *pointer_to_the_background_color,
- double background_gamma)
-{
- /* Standard fields */
- standard_display_init(&dp->this, &pm->this, id, do_read_interlace,
- pm->use_update_info);
-
- /* Parameter fields */
- dp->pm = pm;
- dp->file_gamma = file_gamma;
- dp->screen_gamma = screen_gamma;
- dp->background_gamma = background_gamma;
- dp->sbit = sbit;
- dp->threshold_test = threshold_test;
- dp->use_input_precision = use_input_precision;
- dp->scale16 = scale16;
- dp->expand16 = expand16;
- dp->do_background = do_background;
- if (do_background && pointer_to_the_background_color != 0)
- dp->background_color = *pointer_to_the_background_color;
- else
- memset(&dp->background_color, 0, sizeof dp->background_color);
-
- /* Local variable fields */
- dp->maxerrout = dp->maxerrpc = dp->maxerrabs = 0;
-}
-
-static void
-gamma_info_imp(gamma_display *dp, png_structp pp, png_infop pi)
-{
- /* Reuse the standard stuff as appropriate. */
- standard_info_part1(&dp->this, pp, pi);
-
- /* If requested strip 16 to 8 bits - this is handled automagically below
- * because the output bit depth is read from the library. Note that there
- * are interactions with sBIT but, internally, libpng makes sbit at most
- * PNG_MAX_GAMMA_8 prior to 1.7 when doing the following.
- */
- if (dp->scale16)
-# ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
- png_set_scale_16(pp);
-# else
- /* The following works both in 1.5.4 and earlier versions: */
-# ifdef PNG_READ_16_TO_8_SUPPORTED
- png_set_strip_16(pp);
-# else
- png_error(pp, "scale16 (16 to 8 bit conversion) not supported");
-# endif
-# endif
-
- if (dp->expand16)
-# ifdef PNG_READ_EXPAND_16_SUPPORTED
- png_set_expand_16(pp);
-# else
- png_error(pp, "expand16 (8 to 16 bit conversion) not supported");
-# endif
-
- if (dp->do_background >= ALPHA_MODE_OFFSET)
- {
-# ifdef PNG_READ_ALPHA_MODE_SUPPORTED
- {
- /* This tests the alpha mode handling, if supported. */
- int mode = dp->do_background - ALPHA_MODE_OFFSET;
-
- /* The gamma value is the output gamma, and is in the standard,
- * non-inverted, representation. It provides a default for the PNG file
- * gamma, but since the file has a gAMA chunk this does not matter.
- */
- const double sg = dp->screen_gamma;
-# ifndef PNG_FLOATING_POINT_SUPPORTED
- png_fixed_point g = fix(sg);
-# endif
-
-# ifdef PNG_FLOATING_POINT_SUPPORTED
- png_set_alpha_mode(pp, mode, sg);
-# else
- png_set_alpha_mode_fixed(pp, mode, g);
-# endif
-
- /* However, for the standard Porter-Duff algorithm the output defaults
- * to be linear, so if the test requires non-linear output it must be
- * corrected here.
- */
- if (mode == PNG_ALPHA_STANDARD && sg != 1)
- {
-# ifdef PNG_FLOATING_POINT_SUPPORTED
- png_set_gamma(pp, sg, dp->file_gamma);
-# else
- png_fixed_point f = fix(dp->file_gamma);
- png_set_gamma_fixed(pp, g, f);
-# endif
- }
- }
-# else
- png_error(pp, "alpha mode handling not supported");
-# endif
- }
-
- else
- {
- /* Set up gamma processing. */
-# ifdef PNG_FLOATING_POINT_SUPPORTED
- png_set_gamma(pp, dp->screen_gamma, dp->file_gamma);
-# else
- {
- png_fixed_point s = fix(dp->screen_gamma);
- png_fixed_point f = fix(dp->file_gamma);
- png_set_gamma_fixed(pp, s, f);
- }
-# endif
-
- if (dp->do_background)
- {
-# ifdef PNG_READ_BACKGROUND_SUPPORTED
- /* NOTE: this assumes the caller provided the correct background gamma!
- */
- const double bg = dp->background_gamma;
-# ifndef PNG_FLOATING_POINT_SUPPORTED
- png_fixed_point g = fix(bg);
-# endif
-
-# ifdef PNG_FLOATING_POINT_SUPPORTED
- png_set_background(pp, &dp->background_color, dp->do_background,
- 0/*need_expand*/, bg);
-# else
- png_set_background_fixed(pp, &dp->background_color,
- dp->do_background, 0/*need_expand*/, g);
-# endif
-# else
- png_error(pp, "png_set_background not supported");
-# endif
- }
- }
-
- {
- int i = dp->this.use_update_info;
- /* Always do one call, even if use_update_info is 0. */
- do
- png_read_update_info(pp, pi);
- while (--i > 0);
- }
-
- /* Now we may get a different cbRow: */
- standard_info_part2(&dp->this, pp, pi, 1 /*images*/);
-}
-
-static void PNGCBAPI
-gamma_info(png_structp pp, png_infop pi)
-{
- gamma_info_imp(voidcast(gamma_display*, png_get_progressive_ptr(pp)), pp,
- pi);
-}
-
-/* Validate a single component value - the routine gets the input and output
- * sample values as unscaled PNG component values along with a cache of all the
- * information required to validate the values.
- */
-typedef struct validate_info
-{
- png_const_structp pp;
- gamma_display *dp;
- png_byte sbit;
- int use_input_precision;
- int do_background;
- int scale16;
- unsigned int sbit_max;
- unsigned int isbit_shift;
- unsigned int outmax;
-
- double gamma_correction; /* Overall correction required. */
- double file_inverse; /* Inverse of file gamma. */
- double screen_gamma;
- double screen_inverse; /* Inverse of screen gamma. */
-
- double background_red; /* Linear background value, red or gray. */
- double background_green;
- double background_blue;
-
- double maxabs;
- double maxpc;
- double maxcalc;
- double maxout;
- double maxout_total; /* Total including quantization error */
- double outlog;
- int outquant;
-}
-validate_info;
-
-static void
-init_validate_info(validate_info *vi, gamma_display *dp, png_const_structp pp,
- int in_depth, int out_depth)
-{
- unsigned int outmax = (1U<<out_depth)-1;
-
- vi->pp = pp;
- vi->dp = dp;
-
- if (dp->sbit > 0 && dp->sbit < in_depth)
- {
- vi->sbit = dp->sbit;
- vi->isbit_shift = in_depth - dp->sbit;
- }
-
- else
- {
- vi->sbit = (png_byte)in_depth;
- vi->isbit_shift = 0;
- }
-
- vi->sbit_max = (1U << vi->sbit)-1;
-
- /* This mimics the libpng threshold test, '0' is used to prevent gamma
- * correction in the validation test.
- */
- vi->screen_gamma = dp->screen_gamma;
- if (fabs(vi->screen_gamma-1) < PNG_GAMMA_THRESHOLD)
- vi->screen_gamma = vi->screen_inverse = 0;
- else
- vi->screen_inverse = 1/vi->screen_gamma;
-
- vi->use_input_precision = dp->use_input_precision;
- vi->outmax = outmax;
- vi->maxabs = abserr(dp->pm, in_depth, out_depth);
- vi->maxpc = pcerr(dp->pm, in_depth, out_depth);
- vi->maxcalc = calcerr(dp->pm, in_depth, out_depth);
- vi->maxout = outerr(dp->pm, in_depth, out_depth);
- vi->outquant = output_quantization_factor(dp->pm, in_depth, out_depth);
- vi->maxout_total = vi->maxout + vi->outquant * .5;
- vi->outlog = outlog(dp->pm, in_depth, out_depth);
-
- if ((dp->this.colour_type & PNG_COLOR_MASK_ALPHA) != 0 ||
- (dp->this.colour_type == 3 && dp->this.is_transparent) ||
- ((dp->this.colour_type == 0 || dp->this.colour_type == 2) &&
- dp->this.has_tRNS))
- {
- vi->do_background = dp->do_background;
-
- if (vi->do_background != 0)
- {
- const double bg_inverse = 1/dp->background_gamma;
- double r, g, b;
-
- /* Caller must at least put the gray value into the red channel */
- r = dp->background_color.red; r /= outmax;
- g = dp->background_color.green; g /= outmax;
- b = dp->background_color.blue; b /= outmax;
-
-# if 0
- /* libpng doesn't do this optimization, if we do pngvalid will fail.
- */
- if (fabs(bg_inverse-1) >= PNG_GAMMA_THRESHOLD)
-# endif
- {
- r = pow(r, bg_inverse);
- g = pow(g, bg_inverse);
- b = pow(b, bg_inverse);
- }
-
- vi->background_red = r;
- vi->background_green = g;
- vi->background_blue = b;
- }
- }
- else /* Do not expect any background processing */
- vi->do_background = 0;
-
- if (vi->do_background == 0)
- vi->background_red = vi->background_green = vi->background_blue = 0;
-
- vi->gamma_correction = 1/(dp->file_gamma*dp->screen_gamma);
- if (fabs(vi->gamma_correction-1) < PNG_GAMMA_THRESHOLD)
- vi->gamma_correction = 0;
-
- vi->file_inverse = 1/dp->file_gamma;
- if (fabs(vi->file_inverse-1) < PNG_GAMMA_THRESHOLD)
- vi->file_inverse = 0;
-
- vi->scale16 = dp->scale16;
-}
-
-/* This function handles composition of a single non-alpha component. The
- * argument is the input sample value, in the range 0..1, and the alpha value.
- * The result is the composed, linear, input sample. If alpha is less than zero
- * this is the alpha component and the function should not be called!
- */
-static double
-gamma_component_compose(int do_background, double input_sample, double alpha,
- double background, int *compose)
-{
- switch (do_background)
- {
-#ifdef PNG_READ_BACKGROUND_SUPPORTED
- case PNG_BACKGROUND_GAMMA_SCREEN:
- case PNG_BACKGROUND_GAMMA_FILE:
- case PNG_BACKGROUND_GAMMA_UNIQUE:
- /* Standard PNG background processing. */
- if (alpha < 1)
- {
- if (alpha > 0)
- {
- input_sample = input_sample * alpha + background * (1-alpha);
- if (compose != NULL)
- *compose = 1;
- }
-
- else
- input_sample = background;
- }
- break;
-#endif
-
-#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
- case ALPHA_MODE_OFFSET + PNG_ALPHA_STANDARD:
- case ALPHA_MODE_OFFSET + PNG_ALPHA_BROKEN:
- /* The components are premultiplied in either case and the output is
- * gamma encoded (to get standard Porter-Duff we expect the output
- * gamma to be set to 1.0!)
- */
- case ALPHA_MODE_OFFSET + PNG_ALPHA_OPTIMIZED:
- /* The optimization is that the partial-alpha entries are linear
- * while the opaque pixels are gamma encoded, but this only affects the
- * output encoding.
- */
- if (alpha < 1)
- {
- if (alpha > 0)
- {
- input_sample *= alpha;
- if (compose != NULL)
- *compose = 1;
- }
-
- else
- input_sample = 0;
- }
- break;
-#endif
-
- default:
- /* Standard cases where no compositing is done (so the component
- * value is already correct.)
- */
- UNUSED(alpha)
- UNUSED(background)
- UNUSED(compose)
- break;
- }
-
- return input_sample;
-}
-
-/* This API returns the encoded *input* component, in the range 0..1 */
-static double
-gamma_component_validate(const char *name, const validate_info *vi,
- unsigned int id, unsigned int od,
- const double alpha /* <0 for the alpha channel itself */,
- const double background /* component background value */)
-{
- unsigned int isbit = id >> vi->isbit_shift;
- unsigned int sbit_max = vi->sbit_max;
- unsigned int outmax = vi->outmax;
- int do_background = vi->do_background;
-
- double i;
-
- /* First check on the 'perfect' result obtained from the digitized input
- * value, id, and compare this against the actual digitized result, 'od'.
- * 'i' is the input result in the range 0..1:
- */
- i = isbit; i /= sbit_max;
-
- /* Check for the fast route: if we don't do any background composition or if
- * this is the alpha channel ('alpha' < 0) or if the pixel is opaque then
- * just use the gamma_correction field to correct to the final output gamma.
- */
- if (alpha == 1 /* opaque pixel component */ || !do_background
-#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
- || do_background == ALPHA_MODE_OFFSET + PNG_ALPHA_PNG
-#endif
- || (alpha < 0 /* alpha channel */
-#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
- && do_background != ALPHA_MODE_OFFSET + PNG_ALPHA_BROKEN
-#endif
- ))
- {
- /* Then get the gamma corrected version of 'i' and compare to 'od', any
- * error less than .5 is insignificant - just quantization of the output
- * value to the nearest digital value (nevertheless the error is still
- * recorded - it's interesting ;-)
- */
- double encoded_sample = i;
- double encoded_error;
-
- /* alpha less than 0 indicates the alpha channel, which is always linear
- */
- if (alpha >= 0 && vi->gamma_correction > 0)
- encoded_sample = pow(encoded_sample, vi->gamma_correction);
- encoded_sample *= outmax;
-
- encoded_error = fabs(od-encoded_sample);
-
- if (encoded_error > vi->dp->maxerrout)
- vi->dp->maxerrout = encoded_error;
-
- if (encoded_error < vi->maxout_total && encoded_error < vi->outlog)
- return i;
- }
-
- /* The slow route - attempt to do linear calculations. */
- /* There may be an error, or background processing is required, so calculate
- * the actual sample values - unencoded light intensity values. Note that in
- * practice these are not completely unencoded because they include a
- * 'viewing correction' to decrease or (normally) increase the perceptual
- * contrast of the image. There's nothing we can do about this - we don't
- * know what it is - so assume the unencoded value is perceptually linear.
- */
- {
- double input_sample = i; /* In range 0..1 */
- double output, error, encoded_sample, encoded_error;
- double es_lo, es_hi;
- int compose = 0; /* Set to one if composition done */
- int output_is_encoded; /* Set if encoded to screen gamma */
- int log_max_error = 1; /* Check maximum error values */
- png_const_charp pass = 0; /* Reason test passes (or 0 for fail) */
-
- /* Convert to linear light (with the above caveat.) The alpha channel is
- * already linear.
- */
- if (alpha >= 0)
- {
- int tcompose;
-
- if (vi->file_inverse > 0)
- input_sample = pow(input_sample, vi->file_inverse);
-
- /* Handle the compose processing: */
- tcompose = 0;
- input_sample = gamma_component_compose(do_background, input_sample,
- alpha, background, &tcompose);
-
- if (tcompose)
- compose = 1;
- }
-
- /* And similarly for the output value, but we need to check the background
- * handling to linearize it correctly.
- */
- output = od;
- output /= outmax;
-
- output_is_encoded = vi->screen_gamma > 0;
-
- if (alpha < 0) /* The alpha channel */
- {
-#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
- if (do_background != ALPHA_MODE_OFFSET + PNG_ALPHA_BROKEN)
-#endif
- {
- /* In all other cases the output alpha channel is linear already,
- * don't log errors here, they are much larger in linear data.
- */
- output_is_encoded = 0;
- log_max_error = 0;
- }
- }
-
-#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
- else /* A component */
- {
- if (do_background == ALPHA_MODE_OFFSET + PNG_ALPHA_OPTIMIZED &&
- alpha < 1) /* the optimized case - linear output */
- {
- if (alpha > 0) log_max_error = 0;
- output_is_encoded = 0;
- }
- }
-#endif
-
- if (output_is_encoded)
- output = pow(output, vi->screen_gamma);
-
- /* Calculate (or recalculate) the encoded_sample value and repeat the
- * check above (unnecessary if we took the fast route, but harmless.)
- */
- encoded_sample = input_sample;
- if (output_is_encoded)
- encoded_sample = pow(encoded_sample, vi->screen_inverse);
- encoded_sample *= outmax;
-
- encoded_error = fabs(od-encoded_sample);
-
- /* Don't log errors in the alpha channel, or the 'optimized' case,
- * neither are significant to the overall perception.
- */
- if (log_max_error && encoded_error > vi->dp->maxerrout)
- vi->dp->maxerrout = encoded_error;
-
- if (encoded_error < vi->maxout_total)
- {
- if (encoded_error < vi->outlog)
- return i;
-
- /* Test passed but error is bigger than the log limit, record why the
- * test passed:
- */
- pass = "less than maxout:\n";
- }
-
- /* i: the original input value in the range 0..1
- *
- * pngvalid calculations:
- * input_sample: linear result; i linearized and composed, range 0..1
- * encoded_sample: encoded result; input_sample scaled to output bit depth
- *
- * libpng calculations:
- * output: linear result; od scaled to 0..1 and linearized
- * od: encoded result from libpng
- */
-
- /* Now we have the numbers for real errors, both absolute values as as a
- * percentage of the correct value (output):
- */
- error = fabs(input_sample-output);
-
- if (log_max_error && error > vi->dp->maxerrabs)
- vi->dp->maxerrabs = error;
-
- /* The following is an attempt to ignore the tendency of quantization to
- * dominate the percentage errors for lower result values:
- */
- if (log_max_error && input_sample > .5)
- {
- double percentage_error = error/input_sample;
- if (percentage_error > vi->dp->maxerrpc)
- vi->dp->maxerrpc = percentage_error;
- }
-
- /* Now calculate the digitization limits for 'encoded_sample' using the
- * 'max' values. Note that maxout is in the encoded space but maxpc and
- * maxabs are in linear light space.
- *
- * First find the maximum error in linear light space, range 0..1:
- */
- {
- double tmp = input_sample * vi->maxpc;
- if (tmp < vi->maxabs) tmp = vi->maxabs;
- /* If 'compose' is true the composition was done in linear space using
- * integer arithmetic. This introduces an extra error of +/- 0.5 (at
- * least) in the integer space used. 'maxcalc' records this, taking
- * into account the possibility that even for 16 bit output 8 bit space
- * may have been used.
- */
- if (compose && tmp < vi->maxcalc) tmp = vi->maxcalc;
-
- /* The 'maxout' value refers to the encoded result, to compare with
- * this encode input_sample adjusted by the maximum error (tmp) above.
- */
- es_lo = encoded_sample - vi->maxout;
-
- if (es_lo > 0 && input_sample-tmp > 0)
- {
- double low_value = input_sample-tmp;
- if (output_is_encoded)
- low_value = pow(low_value, vi->screen_inverse);
- low_value *= outmax;
- if (low_value < es_lo) es_lo = low_value;
-
- /* Quantize this appropriately: */
- es_lo = ceil(es_lo / vi->outquant - .5) * vi->outquant;
- }
-
- else
- es_lo = 0;
-
- es_hi = encoded_sample + vi->maxout;
-
- if (es_hi < outmax && input_sample+tmp < 1)
- {
- double high_value = input_sample+tmp;
- if (output_is_encoded)
- high_value = pow(high_value, vi->screen_inverse);
- high_value *= outmax;
- if (high_value > es_hi) es_hi = high_value;
-
- es_hi = floor(es_hi / vi->outquant + .5) * vi->outquant;
- }
-
- else
- es_hi = outmax;
- }
-
- /* The primary test is that the final encoded value returned by the
- * library should be between the two limits (inclusive) that were
- * calculated above.
- */
- if (od >= es_lo && od <= es_hi)
- {
- /* The value passes, but we may need to log the information anyway. */
- if (encoded_error < vi->outlog)
- return i;
-
- if (pass == 0)
- pass = "within digitization limits:\n";
- }
-
- {
- /* There has been an error in processing, or we need to log this
- * value.
- */
- double is_lo, is_hi;
-
- /* pass is set at this point if either of the tests above would have
- * passed. Don't do these additional tests here - just log the
- * original [es_lo..es_hi] values.
- */
- if (pass == 0 && vi->use_input_precision && vi->dp->sbit)
- {
- /* Ok, something is wrong - this actually happens in current libpng
- * 16-to-8 processing. Assume that the input value (id, adjusted
- * for sbit) can be anywhere between value-.5 and value+.5 - quite a
- * large range if sbit is low.
- *
- * NOTE: at present because the libpng gamma table stuff has been
- * changed to use a rounding algorithm to correct errors in 8-bit
- * calculations the precise sbit calculation (a shift) has been
- * lost. This can result in up to a +/-1 error in the presence of
- * an sbit less than the bit depth.
- */
-# if PNG_LIBPNG_VER < 10700
-# define SBIT_ERROR .5
-# else
-# define SBIT_ERROR 1.
-# endif
- double tmp = (isbit - SBIT_ERROR)/sbit_max;
-
- if (tmp <= 0)
- tmp = 0;
-
- else if (alpha >= 0 && vi->file_inverse > 0 && tmp < 1)
- tmp = pow(tmp, vi->file_inverse);
-
- tmp = gamma_component_compose(do_background, tmp, alpha, background,
- NULL);
-
- if (output_is_encoded && tmp > 0 && tmp < 1)
- tmp = pow(tmp, vi->screen_inverse);
-
- is_lo = ceil(outmax * tmp - vi->maxout_total);
-
- if (is_lo < 0)
- is_lo = 0;
-
- tmp = (isbit + SBIT_ERROR)/sbit_max;
-
- if (tmp >= 1)
- tmp = 1;
-
- else if (alpha >= 0 && vi->file_inverse > 0 && tmp < 1)
- tmp = pow(tmp, vi->file_inverse);
-
- tmp = gamma_component_compose(do_background, tmp, alpha, background,
- NULL);
-
- if (output_is_encoded && tmp > 0 && tmp < 1)
- tmp = pow(tmp, vi->screen_inverse);
-
- is_hi = floor(outmax * tmp + vi->maxout_total);
-
- if (is_hi > outmax)
- is_hi = outmax;
-
- if (!(od < is_lo || od > is_hi))
- {
- if (encoded_error < vi->outlog)
- return i;
-
- pass = "within input precision limits:\n";
- }
-
- /* One last chance. If this is an alpha channel and the 16to8
- * option has been used and 'inaccurate' scaling is used then the
- * bit reduction is obtained by simply using the top 8 bits of the
- * value.
- *
- * This is only done for older libpng versions when the 'inaccurate'
- * (chop) method of scaling was used.
- */
-# ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
-# if PNG_LIBPNG_VER < 10504
- /* This may be required for other components in the future,
- * but at present the presence of gamma correction effectively
- * prevents the errors in the component scaling (I don't quite
- * understand why, but since it's better this way I care not
- * to ask, JB 20110419.)
- */
- if (pass == 0 && alpha < 0 && vi->scale16 && vi->sbit > 8 &&
- vi->sbit + vi->isbit_shift == 16)
- {
- tmp = ((id >> 8) - .5)/255;
-
- if (tmp > 0)
- {
- is_lo = ceil(outmax * tmp - vi->maxout_total);
- if (is_lo < 0) is_lo = 0;
- }
-
- else
- is_lo = 0;
-
- tmp = ((id >> 8) + .5)/255;
-
- if (tmp < 1)
- {
- is_hi = floor(outmax * tmp + vi->maxout_total);
- if (is_hi > outmax) is_hi = outmax;
- }
-
- else
- is_hi = outmax;
-
- if (!(od < is_lo || od > is_hi))
- {
- if (encoded_error < vi->outlog)
- return i;
-
- pass = "within 8 bit limits:\n";
- }
- }
-# endif
-# endif
- }
- else /* !use_input_precision */
- is_lo = es_lo, is_hi = es_hi;
-
- /* Attempt to output a meaningful error/warning message: the message
- * output depends on the background/composite operation being performed
- * because this changes what parameters were actually used above.
- */
- {
- size_t pos = 0;
- /* Need either 1/255 or 1/65535 precision here; 3 or 6 decimal
- * places. Just use outmax to work out which.
- */
- int precision = (outmax >= 1000 ? 6 : 3);
- int use_input=1, use_background=0, do_compose=0;
- char msg[256];
-
- if (pass != 0)
- pos = safecat(msg, sizeof msg, pos, "\n\t");
-
- /* Set up the various flags, the output_is_encoded flag above
- * is also used below. do_compose is just a double check.
- */
- switch (do_background)
- {
-# ifdef PNG_READ_BACKGROUND_SUPPORTED
- case PNG_BACKGROUND_GAMMA_SCREEN:
- case PNG_BACKGROUND_GAMMA_FILE:
- case PNG_BACKGROUND_GAMMA_UNIQUE:
- use_background = (alpha >= 0 && alpha < 1);
-# endif
-# ifdef PNG_READ_ALPHA_MODE_SUPPORTED
- /* FALLTHROUGH */
- case ALPHA_MODE_OFFSET + PNG_ALPHA_STANDARD:
- case ALPHA_MODE_OFFSET + PNG_ALPHA_BROKEN:
- case ALPHA_MODE_OFFSET + PNG_ALPHA_OPTIMIZED:
-# endif /* ALPHA_MODE_SUPPORTED */
- do_compose = (alpha > 0 && alpha < 1);
- use_input = (alpha != 0);
- break;
-
- default:
- break;
- }
-
- /* Check the 'compose' flag */
- if (compose != do_compose)
- png_error(vi->pp, "internal error (compose)");
-
- /* 'name' is the component name */
- pos = safecat(msg, sizeof msg, pos, name);
- pos = safecat(msg, sizeof msg, pos, "(");
- pos = safecatn(msg, sizeof msg, pos, id);
- if (use_input || pass != 0/*logging*/)
- {
- if (isbit != id)
- {
- /* sBIT has reduced the precision of the input: */
- pos = safecat(msg, sizeof msg, pos, ", sbit(");
- pos = safecatn(msg, sizeof msg, pos, vi->sbit);
- pos = safecat(msg, sizeof msg, pos, "): ");
- pos = safecatn(msg, sizeof msg, pos, isbit);
- }
- pos = safecat(msg, sizeof msg, pos, "/");
- /* The output is either "id/max" or "id sbit(sbit): isbit/max" */
- pos = safecatn(msg, sizeof msg, pos, vi->sbit_max);
- }
- pos = safecat(msg, sizeof msg, pos, ")");
-
- /* A component may have been multiplied (in linear space) by the
- * alpha value, 'compose' says whether this is relevant.
- */
- if (compose || pass != 0)
- {
- /* If any form of composition is being done report our
- * calculated linear value here (the code above doesn't record
- * the input value before composition is performed, so what
- * gets reported is the value after composition.)
- */
- if (use_input || pass != 0)
- {
- if (vi->file_inverse > 0)
- {
- pos = safecat(msg, sizeof msg, pos, "^");
- pos = safecatd(msg, sizeof msg, pos, vi->file_inverse, 2);
- }
-
- else
- pos = safecat(msg, sizeof msg, pos, "[linear]");
-
- pos = safecat(msg, sizeof msg, pos, "*(alpha)");
- pos = safecatd(msg, sizeof msg, pos, alpha, precision);
- }
-
- /* Now record the *linear* background value if it was used
- * (this function is not passed the original, non-linear,
- * value but it is contained in the test name.)
- */
- if (use_background)
- {
- pos = safecat(msg, sizeof msg, pos, use_input ? "+" : " ");
- pos = safecat(msg, sizeof msg, pos, "(background)");
- pos = safecatd(msg, sizeof msg, pos, background, precision);
- pos = safecat(msg, sizeof msg, pos, "*");
- pos = safecatd(msg, sizeof msg, pos, 1-alpha, precision);
- }
- }
-
- /* Report the calculated value (input_sample) and the linearized
- * libpng value (output) unless this is just a component gamma
- * correction.
- */
- if (compose || alpha < 0 || pass != 0)
- {
- pos = safecat(msg, sizeof msg, pos,
- pass != 0 ? " =\n\t" : " = ");
- pos = safecatd(msg, sizeof msg, pos, input_sample, precision);
- pos = safecat(msg, sizeof msg, pos, " (libpng: ");
- pos = safecatd(msg, sizeof msg, pos, output, precision);
- pos = safecat(msg, sizeof msg, pos, ")");
-
- /* Finally report the output gamma encoding, if any. */
- if (output_is_encoded)
- {
- pos = safecat(msg, sizeof msg, pos, " ^");
- pos = safecatd(msg, sizeof msg, pos, vi->screen_inverse, 2);
- pos = safecat(msg, sizeof msg, pos, "(to screen) =");
- }
-
- else
- pos = safecat(msg, sizeof msg, pos, " [screen is linear] =");
- }
-
- if ((!compose && alpha >= 0) || pass != 0)
- {
- if (pass != 0) /* logging */
- pos = safecat(msg, sizeof msg, pos, "\n\t[overall:");
-
- /* This is the non-composition case, the internal linear
- * values are irrelevant (though the log below will reveal
- * them.) Output a much shorter warning/error message and report
- * the overall gamma correction.
- */
- if (vi->gamma_correction > 0)
- {
- pos = safecat(msg, sizeof msg, pos, " ^");
- pos = safecatd(msg, sizeof msg, pos, vi->gamma_correction, 2);
- pos = safecat(msg, sizeof msg, pos, "(gamma correction) =");
- }
-
- else
- pos = safecat(msg, sizeof msg, pos,
- " [no gamma correction] =");
-
- if (pass != 0)
- pos = safecat(msg, sizeof msg, pos, "]");
- }
-
- /* This is our calculated encoded_sample which should (but does
- * not) match od:
- */
- pos = safecat(msg, sizeof msg, pos, pass != 0 ? "\n\t" : " ");
- pos = safecatd(msg, sizeof msg, pos, is_lo, 1);
- pos = safecat(msg, sizeof msg, pos, " < ");
- pos = safecatd(msg, sizeof msg, pos, encoded_sample, 1);
- pos = safecat(msg, sizeof msg, pos, " (libpng: ");
- pos = safecatn(msg, sizeof msg, pos, od);
- pos = safecat(msg, sizeof msg, pos, ")");
- pos = safecat(msg, sizeof msg, pos, "/");
- pos = safecatn(msg, sizeof msg, pos, outmax);
- pos = safecat(msg, sizeof msg, pos, " < ");
- pos = safecatd(msg, sizeof msg, pos, is_hi, 1);
-
- if (pass == 0) /* The error condition */
- {
-# ifdef PNG_WARNINGS_SUPPORTED
- png_warning(vi->pp, msg);
-# else
- store_warning(vi->pp, msg);
-# endif
- }
-
- else /* logging this value */
- store_verbose(&vi->dp->pm->this, vi->pp, pass, msg);
- }
- }
- }
-
- return i;
-}
-
-static void
-gamma_image_validate(gamma_display *dp, png_const_structp pp,
- png_infop pi)
-{
- /* Get some constants derived from the input and output file formats: */
- const png_store* const ps = dp->this.ps;
- png_byte in_ct = dp->this.colour_type;
- png_byte in_bd = dp->this.bit_depth;
- png_uint_32 w = dp->this.w;
- png_uint_32 h = dp->this.h;
- const size_t cbRow = dp->this.cbRow;
- png_byte out_ct = png_get_color_type(pp, pi);
- png_byte out_bd = png_get_bit_depth(pp, pi);
-
- /* There are three sources of error, firstly the quantization in the
- * file encoding, determined by sbit and/or the file depth, secondly
- * the output (screen) gamma and thirdly the output file encoding.
- *
- * Since this API receives the screen and file gamma in double
- * precision it is possible to calculate an exact answer given an input
- * pixel value. Therefore we assume that the *input* value is exact -
- * sample/maxsample - calculate the corresponding gamma corrected
- * output to the limits of double precision arithmetic and compare with
- * what libpng returns.
- *
- * Since the library must quantize the output to 8 or 16 bits there is
- * a fundamental limit on the accuracy of the output of +/-.5 - this
- * quantization limit is included in addition to the other limits
- * specified by the parameters to the API. (Effectively, add .5
- * everywhere.)
- *
- * The behavior of the 'sbit' parameter is defined by section 12.5
- * (sample depth scaling) of the PNG spec. That section forces the
- * decoder to assume that the PNG values have been scaled if sBIT is
- * present:
- *
- * png-sample = floor( input-sample * (max-out/max-in) + .5);
- *
- * This means that only a subset of the possible PNG values should
- * appear in the input. However, the spec allows the encoder to use a
- * variety of approximations to the above and doesn't require any
- * restriction of the values produced.
- *
- * Nevertheless the spec requires that the upper 'sBIT' bits of the
- * value stored in a PNG file be the original sample bits.
- * Consequently the code below simply scales the top sbit bits by
- * (1<<sbit)-1 to obtain an original sample value.
- *
- * Because there is limited precision in the input it is arguable that
- * an acceptable result is any valid result from input-.5 to input+.5.
- * The basic tests below do not do this, however if 'use_input_precision'
- * is set a subsequent test is performed above.
- */
- unsigned int samples_per_pixel = (out_ct & 2U) ? 3U : 1U;
- int processing;
- png_uint_32 y;
- const store_palette_entry *in_palette = dp->this.palette;
- int in_is_transparent = dp->this.is_transparent;
- int process_tRNS;
- int out_npalette = -1;
- int out_is_transparent = 0; /* Just refers to the palette case */
- store_palette out_palette;
- validate_info vi;
-
- /* Check for row overwrite errors */
- store_image_check(dp->this.ps, pp, 0);
-
- /* Supply the input and output sample depths here - 8 for an indexed image,
- * otherwise the bit depth.
- */
- init_validate_info(&vi, dp, pp, in_ct==3?8:in_bd, out_ct==3?8:out_bd);
-
- processing = (vi.gamma_correction > 0 && !dp->threshold_test)
- || in_bd != out_bd || in_ct != out_ct || vi.do_background;
- process_tRNS = dp->this.has_tRNS && vi.do_background;
-
- /* TODO: FIX THIS: MAJOR BUG! If the transformations all happen inside
- * the palette there is no way of finding out, because libpng fails to
- * update the palette on png_read_update_info. Indeed, libpng doesn't
- * even do the required work until much later, when it doesn't have any
- * info pointer. Oops. For the moment 'processing' is turned off if
- * out_ct is palette.
- */
- if (in_ct == 3 && out_ct == 3)
- processing = 0;
-
- if (processing && out_ct == 3)
- out_is_transparent = read_palette(out_palette, &out_npalette, pp, pi);
-
- for (y=0; y<h; ++y)
- {
- png_const_bytep pRow = store_image_row(ps, pp, 0, y);
- png_byte std[STANDARD_ROWMAX];
-
- transform_row(pp, std, in_ct, in_bd, y);
-
- if (processing)
- {
- unsigned int x;
-
- for (x=0; x<w; ++x)
- {
- double alpha = 1; /* serves as a flag value */
-
- /* Record the palette index for index images. */
- unsigned int in_index =
- in_ct == 3 ? sample(std, 3, in_bd, x, 0, 0, 0) : 256;
- unsigned int out_index =
- out_ct == 3 ? sample(std, 3, out_bd, x, 0, 0, 0) : 256;
-
- /* Handle input alpha - png_set_background will cause the output
- * alpha to disappear so there is nothing to check.
- */
- if ((in_ct & PNG_COLOR_MASK_ALPHA) != 0 ||
- (in_ct == 3 && in_is_transparent))
- {
- unsigned int input_alpha = in_ct == 3 ?
- dp->this.palette[in_index].alpha :
- sample(std, in_ct, in_bd, x, samples_per_pixel, 0, 0);
-
- unsigned int output_alpha = 65536 /* as a flag value */;
-
- if (out_ct == 3)
- {
- if (out_is_transparent)
- output_alpha = out_palette[out_index].alpha;
- }
-
- else if ((out_ct & PNG_COLOR_MASK_ALPHA) != 0)
- output_alpha = sample(pRow, out_ct, out_bd, x,
- samples_per_pixel, 0, 0);
-
- if (output_alpha != 65536)
- alpha = gamma_component_validate("alpha", &vi, input_alpha,
- output_alpha, -1/*alpha*/, 0/*background*/);
-
- else /* no alpha in output */
- {
- /* This is a copy of the calculation of 'i' above in order to
- * have the alpha value to use in the background calculation.
- */
- alpha = input_alpha >> vi.isbit_shift;
- alpha /= vi.sbit_max;
- }
- }
-
- else if (process_tRNS)
- {
- /* alpha needs to be set appropriately for this pixel, it is
- * currently 1 and needs to be 0 for an input pixel which matches
- * the values in tRNS.
- */
- switch (in_ct)
- {
- case 0: /* gray */
- if (sample(std, in_ct, in_bd, x, 0, 0, 0) ==
- dp->this.transparent.red)
- alpha = 0;
- break;
-
- case 2: /* RGB */
- if (sample(std, in_ct, in_bd, x, 0, 0, 0) ==
- dp->this.transparent.red &&
- sample(std, in_ct, in_bd, x, 1, 0, 0) ==
- dp->this.transparent.green &&
- sample(std, in_ct, in_bd, x, 2, 0, 0) ==
- dp->this.transparent.blue)
- alpha = 0;
- break;
-
- default:
- break;
- }
- }
-
- /* Handle grayscale or RGB components. */
- if ((in_ct & PNG_COLOR_MASK_COLOR) == 0) /* grayscale */
- (void)gamma_component_validate("gray", &vi,
- sample(std, in_ct, in_bd, x, 0, 0, 0),
- sample(pRow, out_ct, out_bd, x, 0, 0, 0),
- alpha/*component*/, vi.background_red);
- else /* RGB or palette */
- {
- (void)gamma_component_validate("red", &vi,
- in_ct == 3 ? in_palette[in_index].red :
- sample(std, in_ct, in_bd, x, 0, 0, 0),
- out_ct == 3 ? out_palette[out_index].red :
- sample(pRow, out_ct, out_bd, x, 0, 0, 0),
- alpha/*component*/, vi.background_red);
-
- (void)gamma_component_validate("green", &vi,
- in_ct == 3 ? in_palette[in_index].green :
- sample(std, in_ct, in_bd, x, 1, 0, 0),
- out_ct == 3 ? out_palette[out_index].green :
- sample(pRow, out_ct, out_bd, x, 1, 0, 0),
- alpha/*component*/, vi.background_green);
-
- (void)gamma_component_validate("blue", &vi,
- in_ct == 3 ? in_palette[in_index].blue :
- sample(std, in_ct, in_bd, x, 2, 0, 0),
- out_ct == 3 ? out_palette[out_index].blue :
- sample(pRow, out_ct, out_bd, x, 2, 0, 0),
- alpha/*component*/, vi.background_blue);
- }
- }
- }
-
- else if (memcmp(std, pRow, cbRow) != 0)
- {
- char msg[64];
-
- /* No transform is expected on the threshold tests. */
- sprintf(msg, "gamma: below threshold row %lu changed",
- (unsigned long)y);
-
- png_error(pp, msg);
- }
- } /* row (y) loop */
-
- dp->this.ps->validated = 1;
-}
-
-static void PNGCBAPI
-gamma_end(png_structp ppIn, png_infop pi)
-{
- png_const_structp pp = ppIn;
- gamma_display *dp = voidcast(gamma_display*, png_get_progressive_ptr(pp));
-
- if (!dp->this.speed)
- gamma_image_validate(dp, pp, pi);
- else
- dp->this.ps->validated = 1;
-}
-
-/* A single test run checking a gamma transformation.
- *
- * maxabs: maximum absolute error as a fraction
- * maxout: maximum output error in the output units
- * maxpc: maximum percentage error (as a percentage)
- */
-static void
-gamma_test(png_modifier *pmIn, png_byte colour_typeIn,
- png_byte bit_depthIn, int palette_numberIn,
- int interlace_typeIn,
- const double file_gammaIn, const double screen_gammaIn,
- png_byte sbitIn, int threshold_testIn,
- const char *name,
- int use_input_precisionIn, int scale16In,
- int expand16In, int do_backgroundIn,
- const png_color_16 *bkgd_colorIn, double bkgd_gammaIn)
-{
- gamma_display d;
- context(&pmIn->this, fault);
-
- gamma_display_init(&d, pmIn, FILEID(colour_typeIn, bit_depthIn,
- palette_numberIn, interlace_typeIn, 0, 0, 0),
- file_gammaIn, screen_gammaIn, sbitIn,
- threshold_testIn, use_input_precisionIn, scale16In,
- expand16In, do_backgroundIn, bkgd_colorIn, bkgd_gammaIn);
-
- Try
- {
- png_structp pp;
- png_infop pi;
- gama_modification gama_mod;
- srgb_modification srgb_mod;
- sbit_modification sbit_mod;
-
- /* For the moment don't use the png_modifier support here. */
- d.pm->encoding_counter = 0;
- modifier_set_encoding(d.pm); /* Just resets everything */
- d.pm->current_gamma = d.file_gamma;
-
- /* Make an appropriate modifier to set the PNG file gamma to the
- * given gamma value and the sBIT chunk to the given precision.
- */
- d.pm->modifications = NULL;
- gama_modification_init(&gama_mod, d.pm, d.file_gamma);
- srgb_modification_init(&srgb_mod, d.pm, 127 /*delete*/);
- if (d.sbit > 0)
- sbit_modification_init(&sbit_mod, d.pm, d.sbit);
-
- modification_reset(d.pm->modifications);
-
- /* Get a png_struct for reading the image. */
- pp = set_modifier_for_read(d.pm, &pi, d.this.id, name);
- standard_palette_init(&d.this);
-
- /* Introduce the correct read function. */
- if (d.pm->this.progressive)
- {
- /* Share the row function with the standard implementation. */
- png_set_progressive_read_fn(pp, &d, gamma_info, progressive_row,
- gamma_end);
-
- /* Now feed data into the reader until we reach the end: */
- modifier_progressive_read(d.pm, pp, pi);
- }
- else
- {
- /* modifier_read expects a png_modifier* */
- png_set_read_fn(pp, d.pm, modifier_read);
-
- /* Check the header values: */
- png_read_info(pp, pi);
-
- /* Process the 'info' requirements. Only one image is generated */
- gamma_info_imp(&d, pp, pi);
-
- sequential_row(&d.this, pp, pi, -1, 0);
-
- if (!d.this.speed)
- gamma_image_validate(&d, pp, pi);
- else
- d.this.ps->validated = 1;
- }
-
- modifier_reset(d.pm);
-
- if (d.pm->log && !d.threshold_test && !d.this.speed)
- fprintf(stderr, "%d bit %s %s: max error %f (%.2g, %2g%%)\n",
- d.this.bit_depth, colour_types[d.this.colour_type], name,
- d.maxerrout, d.maxerrabs, 100*d.maxerrpc);
-
- /* Log the summary values too. */
- if (d.this.colour_type == 0 || d.this.colour_type == 4)
- {
- switch (d.this.bit_depth)
- {
- case 1:
- break;
-
- case 2:
- if (d.maxerrout > d.pm->error_gray_2)
- d.pm->error_gray_2 = d.maxerrout;
-
- break;
-
- case 4:
- if (d.maxerrout > d.pm->error_gray_4)
- d.pm->error_gray_4 = d.maxerrout;
-
- break;
-
- case 8:
- if (d.maxerrout > d.pm->error_gray_8)
- d.pm->error_gray_8 = d.maxerrout;
-
- break;
-
- case 16:
- if (d.maxerrout > d.pm->error_gray_16)
- d.pm->error_gray_16 = d.maxerrout;
-
- break;
-
- default:
- png_error(pp, "bad bit depth (internal: 1)");
- }
- }
-
- else if (d.this.colour_type == 2 || d.this.colour_type == 6)
- {
- switch (d.this.bit_depth)
- {
- case 8:
-
- if (d.maxerrout > d.pm->error_color_8)
- d.pm->error_color_8 = d.maxerrout;
-
- break;
-
- case 16:
-
- if (d.maxerrout > d.pm->error_color_16)
- d.pm->error_color_16 = d.maxerrout;
-
- break;
-
- default:
- png_error(pp, "bad bit depth (internal: 2)");
- }
- }
-
- else if (d.this.colour_type == 3)
- {
- if (d.maxerrout > d.pm->error_indexed)
- d.pm->error_indexed = d.maxerrout;
- }
- }
-
- Catch(fault)
- modifier_reset(voidcast(png_modifier*,(void*)fault));
-}
-
-static void gamma_threshold_test(png_modifier *pm, png_byte colour_type,
- png_byte bit_depth, int interlace_type, double file_gamma,
- double screen_gamma)
-{
- size_t pos = 0;
- char name[64];
- pos = safecat(name, sizeof name, pos, "threshold ");
- pos = safecatd(name, sizeof name, pos, file_gamma, 3);
- pos = safecat(name, sizeof name, pos, "/");
- pos = safecatd(name, sizeof name, pos, screen_gamma, 3);
-
- (void)gamma_test(pm, colour_type, bit_depth, 0/*palette*/, interlace_type,
- file_gamma, screen_gamma, 0/*sBIT*/, 1/*threshold test*/, name,
- 0 /*no input precision*/,
- 0 /*no scale16*/, 0 /*no expand16*/, 0 /*no background*/, 0 /*hence*/,
- 0 /*no background gamma*/);
-}
-
-static void
-perform_gamma_threshold_tests(png_modifier *pm)
-{
- png_byte colour_type = 0;
- png_byte bit_depth = 0;
- unsigned int palette_number = 0;
-
- /* Don't test more than one instance of each palette - it's pointless, in
- * fact this test is somewhat excessive since libpng doesn't make this
- * decision based on colour type or bit depth!
- *
- * CHANGED: now test two palettes and, as a side effect, images with and
- * without tRNS.
- */
- while (next_format(&colour_type, &bit_depth, &palette_number,
- pm->test_lbg_gamma_threshold, pm->test_tRNS))
- if (palette_number < 2)
- {
- double test_gamma = 1.0;
- while (test_gamma >= .4)
- {
- /* There's little point testing the interlacing vs non-interlacing,
- * but this can be set from the command line.
- */
- gamma_threshold_test(pm, colour_type, bit_depth, pm->interlace_type,
- test_gamma, 1/test_gamma);
- test_gamma *= .95;
- }
-
- /* And a special test for sRGB */
- gamma_threshold_test(pm, colour_type, bit_depth, pm->interlace_type,
- .45455, 2.2);
-
- if (fail(pm))
- return;
- }
-}
-
-static void gamma_transform_test(png_modifier *pm,
- png_byte colour_type, png_byte bit_depth,
- int palette_number,
- int interlace_type, const double file_gamma,
- const double screen_gamma, png_byte sbit,
- int use_input_precision, int scale16)
-{
- size_t pos = 0;
- char name[64];
-
- if (sbit != bit_depth && sbit != 0)
- {
- pos = safecat(name, sizeof name, pos, "sbit(");
- pos = safecatn(name, sizeof name, pos, sbit);
- pos = safecat(name, sizeof name, pos, ") ");
- }
-
- else
- pos = safecat(name, sizeof name, pos, "gamma ");
-
- if (scale16)
- pos = safecat(name, sizeof name, pos, "16to8 ");
-
- pos = safecatd(name, sizeof name, pos, file_gamma, 3);
- pos = safecat(name, sizeof name, pos, "->");
- pos = safecatd(name, sizeof name, pos, screen_gamma, 3);
-
- gamma_test(pm, colour_type, bit_depth, palette_number, interlace_type,
- file_gamma, screen_gamma, sbit, 0, name, use_input_precision,
- scale16, pm->test_gamma_expand16, 0 , 0, 0);
-}
-
-static void perform_gamma_transform_tests(png_modifier *pm)
-{
- png_byte colour_type = 0;
- png_byte bit_depth = 0;
- unsigned int palette_number = 0;
-
- while (next_format(&colour_type, &bit_depth, &palette_number,
- pm->test_lbg_gamma_transform, pm->test_tRNS))
- {
- unsigned int i, j;
-
- for (i=0; i<pm->ngamma_tests; ++i) for (j=0; j<pm->ngamma_tests; ++j)
- if (i != j)
- {
- gamma_transform_test(pm, colour_type, bit_depth, palette_number,
- pm->interlace_type, 1/pm->gammas[i], pm->gammas[j], 0/*sBIT*/,
- pm->use_input_precision, 0 /*do not scale16*/);
-
- if (fail(pm))
- return;
- }
- }
-}
-
-static void perform_gamma_sbit_tests(png_modifier *pm)
-{
- png_byte sbit;
-
- /* The only interesting cases are colour and grayscale, alpha is ignored here
- * for overall speed. Only bit depths where sbit is less than the bit depth
- * are tested.
- */
- for (sbit=pm->sbitlow; sbit<(1<<READ_BDHI); ++sbit)
- {
- png_byte colour_type = 0, bit_depth = 0;
- unsigned int npalette = 0;
-
- while (next_format(&colour_type, &bit_depth, &npalette,
- pm->test_lbg_gamma_sbit, pm->test_tRNS))
- if ((colour_type & PNG_COLOR_MASK_ALPHA) == 0 &&
- ((colour_type == 3 && sbit < 8) ||
- (colour_type != 3 && sbit < bit_depth)))
- {
- unsigned int i;
-
- for (i=0; i<pm->ngamma_tests; ++i)
- {
- unsigned int j;
-
- for (j=0; j<pm->ngamma_tests; ++j) if (i != j)
- {
- gamma_transform_test(pm, colour_type, bit_depth, npalette,
- pm->interlace_type, 1/pm->gammas[i], pm->gammas[j],
- sbit, pm->use_input_precision_sbit, 0 /*scale16*/);
-
- if (fail(pm))
- return;
- }
- }
- }
- }
-}
-
-/* Note that this requires a 16 bit source image but produces 8 bit output, so
- * we only need the 16bit write support, but the 16 bit images are only
- * generated if DO_16BIT is defined.
- */
-#ifdef DO_16BIT
-static void perform_gamma_scale16_tests(png_modifier *pm)
-{
-# ifndef PNG_MAX_GAMMA_8
-# define PNG_MAX_GAMMA_8 11
-# endif
-# if defined PNG_MAX_GAMMA_8 || PNG_LIBPNG_VER < 10700
-# define SBIT_16_TO_8 PNG_MAX_GAMMA_8
-# else
-# define SBIT_16_TO_8 16
-# endif
- /* Include the alpha cases here. Note that sbit matches the internal value
- * used by the library - otherwise we will get spurious errors from the
- * internal sbit style approximation.
- *
- * The threshold test is here because otherwise the 16 to 8 conversion will
- * proceed *without* gamma correction, and the tests above will fail (but not
- * by much) - this could be fixed, it only appears with the -g option.
- */
- unsigned int i, j;
- for (i=0; i<pm->ngamma_tests; ++i)
- {
- for (j=0; j<pm->ngamma_tests; ++j)
- {
- if (i != j &&
- fabs(pm->gammas[j]/pm->gammas[i]-1) >= PNG_GAMMA_THRESHOLD)
- {
- gamma_transform_test(pm, 0, 16, 0, pm->interlace_type,
- 1/pm->gammas[i], pm->gammas[j], SBIT_16_TO_8,
- pm->use_input_precision_16to8, 1 /*scale16*/);
-
- if (fail(pm))
- return;
-
- gamma_transform_test(pm, 2, 16, 0, pm->interlace_type,
- 1/pm->gammas[i], pm->gammas[j], SBIT_16_TO_8,
- pm->use_input_precision_16to8, 1 /*scale16*/);
-
- if (fail(pm))
- return;
-
- gamma_transform_test(pm, 4, 16, 0, pm->interlace_type,
- 1/pm->gammas[i], pm->gammas[j], SBIT_16_TO_8,
- pm->use_input_precision_16to8, 1 /*scale16*/);
-
- if (fail(pm))
- return;
-
- gamma_transform_test(pm, 6, 16, 0, pm->interlace_type,
- 1/pm->gammas[i], pm->gammas[j], SBIT_16_TO_8,
- pm->use_input_precision_16to8, 1 /*scale16*/);
-
- if (fail(pm))
- return;
- }
- }
- }
-}
-#endif /* 16 to 8 bit conversion */
-
-#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
- defined(PNG_READ_ALPHA_MODE_SUPPORTED)
-static void gamma_composition_test(png_modifier *pm,
- png_byte colour_type, png_byte bit_depth,
- int palette_number,
- int interlace_type, const double file_gamma,
- const double screen_gamma,
- int use_input_precision, int do_background,
- int expand_16)
-{
- size_t pos = 0;
- png_const_charp base;
- double bg;
- char name[128];
- png_color_16 background;
-
- /* Make up a name and get an appropriate background gamma value. */
- switch (do_background)
- {
- default:
- base = "";
- bg = 4; /* should not be used */
- break;
- case PNG_BACKGROUND_GAMMA_SCREEN:
- base = " bckg(Screen):";
- bg = 1/screen_gamma;
- break;
- case PNG_BACKGROUND_GAMMA_FILE:
- base = " bckg(File):";
- bg = file_gamma;
- break;
- case PNG_BACKGROUND_GAMMA_UNIQUE:
- base = " bckg(Unique):";
- /* This tests the handling of a unique value, the math is such that the
- * value tends to be <1, but is neither screen nor file (even if they
- * match!)
- */
- bg = (file_gamma + screen_gamma) / 3;
- break;
-#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
- case ALPHA_MODE_OFFSET + PNG_ALPHA_PNG:
- base = " alpha(PNG)";
- bg = 4; /* should not be used */
- break;
- case ALPHA_MODE_OFFSET + PNG_ALPHA_STANDARD:
- base = " alpha(Porter-Duff)";
- bg = 4; /* should not be used */
- break;
- case ALPHA_MODE_OFFSET + PNG_ALPHA_OPTIMIZED:
- base = " alpha(Optimized)";
- bg = 4; /* should not be used */
- break;
- case ALPHA_MODE_OFFSET + PNG_ALPHA_BROKEN:
- base = " alpha(Broken)";
- bg = 4; /* should not be used */
- break;
-#endif
- }
-
- /* Use random background values - the background is always presented in the
- * output space (8 or 16 bit components).
- */
- if (expand_16 || bit_depth == 16)
- {
- png_uint_32 r = random_32();
-
- background.red = (png_uint_16)r;
- background.green = (png_uint_16)(r >> 16);
- r = random_32();
- background.blue = (png_uint_16)r;
- background.gray = (png_uint_16)(r >> 16);
-
- /* In earlier libpng versions, those where DIGITIZE is set, any background
- * gamma correction in the expand16 case was done using 8-bit gamma
- * correction tables, resulting in larger errors. To cope with those
- * cases use a 16-bit background value which will handle this gamma
- * correction.
- */
-# if DIGITIZE
- if (expand_16 && (do_background == PNG_BACKGROUND_GAMMA_UNIQUE ||
- do_background == PNG_BACKGROUND_GAMMA_FILE) &&
- fabs(bg*screen_gamma-1) > PNG_GAMMA_THRESHOLD)
- {
- /* The background values will be looked up in an 8-bit table to do
- * the gamma correction, so only select values which are an exact
- * match for the 8-bit table entries:
- */
- background.red = (png_uint_16)((background.red >> 8) * 257);
- background.green = (png_uint_16)((background.green >> 8) * 257);
- background.blue = (png_uint_16)((background.blue >> 8) * 257);
- background.gray = (png_uint_16)((background.gray >> 8) * 257);
- }
-# endif
- }
-
- else /* 8 bit colors */
- {
- png_uint_32 r = random_32();
-
- background.red = (png_byte)r;
- background.green = (png_byte)(r >> 8);
- background.blue = (png_byte)(r >> 16);
- background.gray = (png_byte)(r >> 24);
- }
-
- background.index = 193; /* rgb(193,193,193) to detect errors */
-
- if (!(colour_type & PNG_COLOR_MASK_COLOR))
- {
- /* Because, currently, png_set_background is always called with
- * 'need_expand' false in this case and because the gamma test itself
- * doesn't cause an expand to 8-bit for lower bit depths the colour must
- * be reduced to the correct range.
- */
- if (bit_depth < 8)
- background.gray &= (png_uint_16)((1U << bit_depth)-1);
-
- /* Grayscale input, we do not convert to RGB (TBD), so we must set the
- * background to gray - else libpng seems to fail.
- */
- background.red = background.green = background.blue = background.gray;
- }
-
- pos = safecat(name, sizeof name, pos, "gamma ");
- pos = safecatd(name, sizeof name, pos, file_gamma, 3);
- pos = safecat(name, sizeof name, pos, "->");
- pos = safecatd(name, sizeof name, pos, screen_gamma, 3);
-
- pos = safecat(name, sizeof name, pos, base);
- if (do_background < ALPHA_MODE_OFFSET)
- {
- /* Include the background color and gamma in the name: */
- pos = safecat(name, sizeof name, pos, "(");
- /* This assumes no expand gray->rgb - the current code won't handle that!
- */
- if (colour_type & PNG_COLOR_MASK_COLOR)
- {
- pos = safecatn(name, sizeof name, pos, background.red);
- pos = safecat(name, sizeof name, pos, ",");
- pos = safecatn(name, sizeof name, pos, background.green);
- pos = safecat(name, sizeof name, pos, ",");
- pos = safecatn(name, sizeof name, pos, background.blue);
- }
- else
- pos = safecatn(name, sizeof name, pos, background.gray);
- pos = safecat(name, sizeof name, pos, ")^");
- pos = safecatd(name, sizeof name, pos, bg, 3);
- }
-
- gamma_test(pm, colour_type, bit_depth, palette_number, interlace_type,
- file_gamma, screen_gamma, 0/*sBIT*/, 0, name, use_input_precision,
- 0/*strip 16*/, expand_16, do_background, &background, bg);
-}
-
-
-static void
-perform_gamma_composition_tests(png_modifier *pm, int do_background,
- int expand_16)
-{
- png_byte colour_type = 0;
- png_byte bit_depth = 0;
- unsigned int palette_number = 0;
-
- /* Skip the non-alpha cases - there is no setting of a transparency colour at
- * present.
- *
- * TODO: incorrect; the palette case sets tRNS and, now RGB and gray do,
- * however the palette case fails miserably so is commented out below.
- */
- while (next_format(&colour_type, &bit_depth, &palette_number,
- pm->test_lbg_gamma_composition, pm->test_tRNS))
- if ((colour_type & PNG_COLOR_MASK_ALPHA) != 0
-#if 0 /* TODO: FIXME */
- /*TODO: FIXME: this should work */
- || colour_type == 3
-#endif
- || (colour_type != 3 && palette_number != 0))
- {
- unsigned int i, j;
-
- /* Don't skip the i==j case here - it's relevant. */
- for (i=0; i<pm->ngamma_tests; ++i) for (j=0; j<pm->ngamma_tests; ++j)
- {
- gamma_composition_test(pm, colour_type, bit_depth, palette_number,
- pm->interlace_type, 1/pm->gammas[i], pm->gammas[j],
- pm->use_input_precision, do_background, expand_16);
-
- if (fail(pm))
- return;
- }
- }
-}
-#endif /* READ_BACKGROUND || READ_ALPHA_MODE */
-
-static void
-init_gamma_errors(png_modifier *pm)
-{
- /* Use -1 to catch tests that were not actually run */
- pm->error_gray_2 = pm->error_gray_4 = pm->error_gray_8 = -1.;
- pm->error_color_8 = -1.;
- pm->error_indexed = -1.;
- pm->error_gray_16 = pm->error_color_16 = -1.;
-}
-
-static void
-print_one(const char *leader, double err)
-{
- if (err != -1.)
- printf(" %s %.5f\n", leader, err);
-}
-
-static void
-summarize_gamma_errors(png_modifier *pm, png_const_charp who, int low_bit_depth,
- int indexed)
-{
- fflush(stderr);
-
- if (who)
- printf("\nGamma correction with %s:\n", who);
-
- else
- printf("\nBasic gamma correction:\n");
-
- if (low_bit_depth)
- {
- print_one(" 2 bit gray: ", pm->error_gray_2);
- print_one(" 4 bit gray: ", pm->error_gray_4);
- print_one(" 8 bit gray: ", pm->error_gray_8);
- print_one(" 8 bit color:", pm->error_color_8);
- if (indexed)
- print_one(" indexed: ", pm->error_indexed);
- }
-
- print_one("16 bit gray: ", pm->error_gray_16);
- print_one("16 bit color:", pm->error_color_16);
-
- fflush(stdout);
-}
-
-static void
-perform_gamma_test(png_modifier *pm, int summary)
-{
- /*TODO: remove this*/
- /* Save certain values for the temporary overrides below. */
- unsigned int calculations_use_input_precision =
- pm->calculations_use_input_precision;
-# ifdef PNG_READ_BACKGROUND_SUPPORTED
- double maxout8 = pm->maxout8;
-# endif
-
- /* First some arbitrary no-transform tests: */
- if (!pm->this.speed && pm->test_gamma_threshold)
- {
- perform_gamma_threshold_tests(pm);
-
- if (fail(pm))
- return;
- }
-
- /* Now some real transforms. */
- if (pm->test_gamma_transform)
- {
- if (summary)
- {
- fflush(stderr);
- printf("Gamma correction error summary\n\n");
- printf("The printed value is the maximum error in the pixel values\n");
- printf("calculated by the libpng gamma correction code. The error\n");
- printf("is calculated as the difference between the output pixel\n");
- printf("value (always an integer) and the ideal value from the\n");
- printf("libpng specification (typically not an integer).\n\n");
-
- printf("Expect this value to be less than .5 for 8 bit formats,\n");
- printf("less than 1 for formats with fewer than 8 bits and a small\n");
- printf("number (typically less than 5) for the 16 bit formats.\n");
- printf("For performance reasons the value for 16 bit formats\n");
- printf("increases when the image file includes an sBIT chunk.\n");
- fflush(stdout);
- }
-
- init_gamma_errors(pm);
- /*TODO: remove this. Necessary because the current libpng
- * implementation works in 8 bits:
- */
- if (pm->test_gamma_expand16)
- pm->calculations_use_input_precision = 1;
- perform_gamma_transform_tests(pm);
- if (!calculations_use_input_precision)
- pm->calculations_use_input_precision = 0;
-
- if (summary)
- summarize_gamma_errors(pm, 0/*who*/, 1/*low bit depth*/, 1/*indexed*/);
-
- if (fail(pm))
- return;
- }
-
- /* The sbit tests produce much larger errors: */
- if (pm->test_gamma_sbit)
- {
- init_gamma_errors(pm);
- perform_gamma_sbit_tests(pm);
-
- if (summary)
- summarize_gamma_errors(pm, "sBIT", pm->sbitlow < 8U, 1/*indexed*/);
-
- if (fail(pm))
- return;
- }
-
-#ifdef DO_16BIT /* Should be READ_16BIT_SUPPORTED */
- if (pm->test_gamma_scale16)
- {
- /* The 16 to 8 bit strip operations: */
- init_gamma_errors(pm);
- perform_gamma_scale16_tests(pm);
-
- if (summary)
- {
- fflush(stderr);
- printf("\nGamma correction with 16 to 8 bit reduction:\n");
- printf(" 16 bit gray: %.5f\n", pm->error_gray_16);
- printf(" 16 bit color: %.5f\n", pm->error_color_16);
- fflush(stdout);
- }
-
- if (fail(pm))
- return;
- }
-#endif
-
-#ifdef PNG_READ_BACKGROUND_SUPPORTED
- if (pm->test_gamma_background)
- {
- init_gamma_errors(pm);
-
- /*TODO: remove this. Necessary because the current libpng
- * implementation works in 8 bits:
- */
- if (pm->test_gamma_expand16)
- {
- pm->calculations_use_input_precision = 1;
- pm->maxout8 = .499; /* because the 16 bit background is smashed */
- }
- perform_gamma_composition_tests(pm, PNG_BACKGROUND_GAMMA_UNIQUE,
- pm->test_gamma_expand16);
- if (!calculations_use_input_precision)
- pm->calculations_use_input_precision = 0;
- pm->maxout8 = maxout8;
-
- if (summary)
- summarize_gamma_errors(pm, "background", 1, 0/*indexed*/);
-
- if (fail(pm))
- return;
- }
-#endif
-
-#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
- if (pm->test_gamma_alpha_mode)
- {
- int do_background;
-
- init_gamma_errors(pm);
-
- /*TODO: remove this. Necessary because the current libpng
- * implementation works in 8 bits:
- */
- if (pm->test_gamma_expand16)
- pm->calculations_use_input_precision = 1;
- for (do_background = ALPHA_MODE_OFFSET + PNG_ALPHA_STANDARD;
- do_background <= ALPHA_MODE_OFFSET + PNG_ALPHA_BROKEN && !fail(pm);
- ++do_background)
- perform_gamma_composition_tests(pm, do_background,
- pm->test_gamma_expand16);
- if (!calculations_use_input_precision)
- pm->calculations_use_input_precision = 0;
-
- if (summary)
- summarize_gamma_errors(pm, "alpha mode", 1, 0/*indexed*/);
-
- if (fail(pm))
- return;
- }
-#endif
-}
-#endif /* PNG_READ_GAMMA_SUPPORTED */
-#endif /* PNG_READ_SUPPORTED */
-
-/* INTERLACE MACRO VALIDATION */
-/* This is copied verbatim from the specification, it is simply the pass
- * number in which each pixel in each 8x8 tile appears. The array must
- * be indexed adam7[y][x] and notice that the pass numbers are based at
- * 1, not 0 - the base libpng uses.
- */
-static const
-png_byte adam7[8][8] =
-{
- { 1,6,4,6,2,6,4,6 },
- { 7,7,7,7,7,7,7,7 },
- { 5,6,5,6,5,6,5,6 },
- { 7,7,7,7,7,7,7,7 },
- { 3,6,4,6,3,6,4,6 },
- { 7,7,7,7,7,7,7,7 },
- { 5,6,5,6,5,6,5,6 },
- { 7,7,7,7,7,7,7,7 }
-};
-
-/* This routine validates all the interlace support macros in png.h for
- * a variety of valid PNG widths and heights. It uses a number of similarly
- * named internal routines that feed off the above array.
- */
-static png_uint_32
-png_pass_start_row(int pass)
-{
- int x, y;
- ++pass;
- for (y=0; y<8; ++y) for (x=0; x<8; ++x) if (adam7[y][x] == pass)
- return y;
- return 0xf;
-}
-
-static png_uint_32
-png_pass_start_col(int pass)
-{
- int x, y;
- ++pass;
- for (x=0; x<8; ++x) for (y=0; y<8; ++y) if (adam7[y][x] == pass)
- return x;
- return 0xf;
-}
-
-static int
-png_pass_row_shift(int pass)
-{
- int x, y, base=(-1), inc=8;
- ++pass;
- for (y=0; y<8; ++y) for (x=0; x<8; ++x) if (adam7[y][x] == pass)
- {
- if (base == (-1))
- base = y;
- else if (base == y)
- {}
- else if (inc == y-base)
- base=y;
- else if (inc == 8)
- inc = y-base, base=y;
- else if (inc != y-base)
- return 0xff; /* error - more than one 'inc' value! */
- }
-
- if (base == (-1)) return 0xfe; /* error - no row in pass! */
-
- /* The shift is always 1, 2 or 3 - no pass has all the rows! */
- switch (inc)
- {
-case 2: return 1;
-case 4: return 2;
-case 8: return 3;
-default: break;
- }
-
- /* error - unrecognized 'inc' */
- return (inc << 8) + 0xfd;
-}
-
-static int
-png_pass_col_shift(int pass)
-{
- int x, y, base=(-1), inc=8;
- ++pass;
- for (x=0; x<8; ++x) for (y=0; y<8; ++y) if (adam7[y][x] == pass)
- {
- if (base == (-1))
- base = x;
- else if (base == x)
- {}
- else if (inc == x-base)
- base=x;
- else if (inc == 8)
- inc = x-base, base=x;
- else if (inc != x-base)
- return 0xff; /* error - more than one 'inc' value! */
- }
-
- if (base == (-1)) return 0xfe; /* error - no row in pass! */
-
- /* The shift is always 1, 2 or 3 - no pass has all the rows! */
- switch (inc)
- {
-case 1: return 0; /* pass 7 has all the columns */
-case 2: return 1;
-case 4: return 2;
-case 8: return 3;
-default: break;
- }
-
- /* error - unrecognized 'inc' */
- return (inc << 8) + 0xfd;
-}
-
-static png_uint_32
-png_row_from_pass_row(png_uint_32 yIn, int pass)
-{
- /* By examination of the array: */
- switch (pass)
- {
-case 0: return yIn * 8;
-case 1: return yIn * 8;
-case 2: return yIn * 8 + 4;
-case 3: return yIn * 4;
-case 4: return yIn * 4 + 2;
-case 5: return yIn * 2;
-case 6: return yIn * 2 + 1;
-default: break;
- }
-
- return 0xff; /* bad pass number */
-}
-
-static png_uint_32
-png_col_from_pass_col(png_uint_32 xIn, int pass)
-{
- /* By examination of the array: */
- switch (pass)
- {
-case 0: return xIn * 8;
-case 1: return xIn * 8 + 4;
-case 2: return xIn * 4;
-case 3: return xIn * 4 + 2;
-case 4: return xIn * 2;
-case 5: return xIn * 2 + 1;
-case 6: return xIn;
-default: break;
- }
-
- return 0xff; /* bad pass number */
-}
-
-static int
-png_row_in_interlace_pass(png_uint_32 y, int pass)
-{
- /* Is row 'y' in pass 'pass'? */
- int x;
- y &= 7;
- ++pass;
- for (x=0; x<8; ++x) if (adam7[y][x] == pass)
- return 1;
-
- return 0;
-}
-
-static int
-png_col_in_interlace_pass(png_uint_32 x, int pass)
-{
- /* Is column 'x' in pass 'pass'? */
- int y;
- x &= 7;
- ++pass;
- for (y=0; y<8; ++y) if (adam7[y][x] == pass)
- return 1;
-
- return 0;
-}
-
-static png_uint_32
-png_pass_rows(png_uint_32 height, int pass)
-{
- png_uint_32 tiles = height>>3;
- png_uint_32 rows = 0;
- unsigned int x, y;
-
- height &= 7;
- ++pass;
- for (y=0; y<8; ++y) for (x=0; x<8; ++x) if (adam7[y][x] == pass)
- {
- rows += tiles;
- if (y < height) ++rows;
- break; /* i.e. break the 'x', column, loop. */
- }
-
- return rows;
-}
-
-static png_uint_32
-png_pass_cols(png_uint_32 width, int pass)
-{
- png_uint_32 tiles = width>>3;
- png_uint_32 cols = 0;
- unsigned int x, y;
-
- width &= 7;
- ++pass;
- for (x=0; x<8; ++x) for (y=0; y<8; ++y) if (adam7[y][x] == pass)
- {
- cols += tiles;
- if (x < width) ++cols;
- break; /* i.e. break the 'y', row, loop. */
- }
-
- return cols;
-}
-
-static void
-perform_interlace_macro_validation(void)
-{
- /* The macros to validate, first those that depend only on pass:
- *
- * PNG_PASS_START_ROW(pass)
- * PNG_PASS_START_COL(pass)
- * PNG_PASS_ROW_SHIFT(pass)
- * PNG_PASS_COL_SHIFT(pass)
- */
- int pass;
-
- for (pass=0; pass<7; ++pass)
- {
- png_uint_32 m, f, v;
-
- m = PNG_PASS_START_ROW(pass);
- f = png_pass_start_row(pass);
- if (m != f)
- {
- fprintf(stderr, "PNG_PASS_START_ROW(%d) = %u != %x\n", pass, m, f);
- exit(99);
- }
-
- m = PNG_PASS_START_COL(pass);
- f = png_pass_start_col(pass);
- if (m != f)
- {
- fprintf(stderr, "PNG_PASS_START_COL(%d) = %u != %x\n", pass, m, f);
- exit(99);
- }
-
- m = PNG_PASS_ROW_SHIFT(pass);
- f = png_pass_row_shift(pass);
- if (m != f)
- {
- fprintf(stderr, "PNG_PASS_ROW_SHIFT(%d) = %u != %x\n", pass, m, f);
- exit(99);
- }
-
- m = PNG_PASS_COL_SHIFT(pass);
- f = png_pass_col_shift(pass);
- if (m != f)
- {
- fprintf(stderr, "PNG_PASS_COL_SHIFT(%d) = %u != %x\n", pass, m, f);
- exit(99);
- }
-
- /* Macros that depend on the image or sub-image height too:
- *
- * PNG_PASS_ROWS(height, pass)
- * PNG_PASS_COLS(width, pass)
- * PNG_ROW_FROM_PASS_ROW(yIn, pass)
- * PNG_COL_FROM_PASS_COL(xIn, pass)
- * PNG_ROW_IN_INTERLACE_PASS(y, pass)
- * PNG_COL_IN_INTERLACE_PASS(x, pass)
- */
- for (v=0;;)
- {
- /* The first two tests overflow if the pass row or column is outside
- * the possible range for a 32-bit result. In fact the values should
- * never be outside the range for a 31-bit result, but checking for 32
- * bits here ensures that if an app uses a bogus pass row or column
- * (just so long as it fits in a 32 bit integer) it won't get a
- * possibly dangerous overflow.
- */
- /* First the base 0 stuff: */
- if (v < png_pass_rows(0xFFFFFFFFU, pass))
- {
- m = PNG_ROW_FROM_PASS_ROW(v, pass);
- f = png_row_from_pass_row(v, pass);
- if (m != f)
- {
- fprintf(stderr, "PNG_ROW_FROM_PASS_ROW(%u, %d) = %u != %x\n",
- v, pass, m, f);
- exit(99);
- }
- }
-
- if (v < png_pass_cols(0xFFFFFFFFU, pass))
- {
- m = PNG_COL_FROM_PASS_COL(v, pass);
- f = png_col_from_pass_col(v, pass);
- if (m != f)
- {
- fprintf(stderr, "PNG_COL_FROM_PASS_COL(%u, %d) = %u != %x\n",
- v, pass, m, f);
- exit(99);
- }
- }
-
- m = PNG_ROW_IN_INTERLACE_PASS(v, pass);
- f = png_row_in_interlace_pass(v, pass);
- if (m != f)
- {
- fprintf(stderr, "PNG_ROW_IN_INTERLACE_PASS(%u, %d) = %u != %x\n",
- v, pass, m, f);
- exit(99);
- }
-
- m = PNG_COL_IN_INTERLACE_PASS(v, pass);
- f = png_col_in_interlace_pass(v, pass);
- if (m != f)
- {
- fprintf(stderr, "PNG_COL_IN_INTERLACE_PASS(%u, %d) = %u != %x\n",
- v, pass, m, f);
- exit(99);
- }
-
- /* Then the base 1 stuff: */
- ++v;
- m = PNG_PASS_ROWS(v, pass);
- f = png_pass_rows(v, pass);
- if (m != f)
- {
- fprintf(stderr, "PNG_PASS_ROWS(%u, %d) = %u != %x\n",
- v, pass, m, f);
- exit(99);
- }
-
- m = PNG_PASS_COLS(v, pass);
- f = png_pass_cols(v, pass);
- if (m != f)
- {
- fprintf(stderr, "PNG_PASS_COLS(%u, %d) = %u != %x\n",
- v, pass, m, f);
- exit(99);
- }
-
- /* Move to the next v - the stepping algorithm starts skipping
- * values above 1024.
- */
- if (v > 1024)
- {
- if (v == PNG_UINT_31_MAX)
- break;
-
- v = (v << 1) ^ v;
- if (v >= PNG_UINT_31_MAX)
- v = PNG_UINT_31_MAX-1;
- }
- }
- }
-}
-
-/* Test color encodings. These values are back-calculated from the published
- * chromaticities. The values are accurate to about 14 decimal places; 15 are
- * given. These values are much more accurate than the ones given in the spec,
- * which typically don't exceed 4 decimal places. This allows testing of the
- * libpng code to its theoretical accuracy of 4 decimal places. (If pngvalid
- * used the published errors the 'slack' permitted would have to be +/-.5E-4 or
- * more.)
- *
- * The png_modifier code assumes that encodings[0] is sRGB and treats it
- * specially: do not change the first entry in this list!
- */
-static const color_encoding test_encodings[] =
-{
-/* sRGB: must be first in this list! */
-/*gamma:*/ { 1/2.2,
-/*red: */ { 0.412390799265959, 0.212639005871510, 0.019330818715592 },
-/*green:*/ { 0.357584339383878, 0.715168678767756, 0.119194779794626 },
-/*blue: */ { 0.180480788401834, 0.072192315360734, 0.950532152249660} },
-/* Kodak ProPhoto (wide gamut) */
-/*gamma:*/ { 1/1.6 /*approximate: uses 1.8 power law compared to sRGB 2.4*/,
-/*red: */ { 0.797760489672303, 0.288071128229293, 0.000000000000000 },
-/*green:*/ { 0.135185837175740, 0.711843217810102, 0.000000000000000 },
-/*blue: */ { 0.031349349581525, 0.000085653960605, 0.825104602510460} },
-/* Adobe RGB (1998) */
-/*gamma:*/ { 1/(2+51./256),
-/*red: */ { 0.576669042910131, 0.297344975250536, 0.027031361386412 },
-/*green:*/ { 0.185558237906546, 0.627363566255466, 0.070688852535827 },
-/*blue: */ { 0.188228646234995, 0.075291458493998, 0.991337536837639} },
-/* Adobe Wide Gamut RGB */
-/*gamma:*/ { 1/(2+51./256),
-/*red: */ { 0.716500716779386, 0.258728243040113, 0.000000000000000 },
-/*green:*/ { 0.101020574397477, 0.724682314948566, 0.051211818965388 },
-/*blue: */ { 0.146774385252705, 0.016589442011321, 0.773892783545073} },
-/* Fake encoding which selects just the green channel */
-/*gamma:*/ { 1.45/2.2, /* the 'Mac' gamma */
-/*red: */ { 0.716500716779386, 0.000000000000000, 0.000000000000000 },
-/*green:*/ { 0.101020574397477, 1.000000000000000, 0.051211818965388 },
-/*blue: */ { 0.146774385252705, 0.000000000000000, 0.773892783545073} },
-};
-
-/* signal handler
- *
- * This attempts to trap signals and escape without crashing. It needs a
- * context pointer so that it can throw an exception (call longjmp) to recover
- * from the condition; this is handled by making the png_modifier used by 'main'
- * into a global variable.
- */
-static png_modifier pm;
-
-static void signal_handler(int signum)
-{
-
- size_t pos = 0;
- char msg[64];
-
- pos = safecat(msg, sizeof msg, pos, "caught signal: ");
-
- switch (signum)
- {
- case SIGABRT:
- pos = safecat(msg, sizeof msg, pos, "abort");
- break;
-
- case SIGFPE:
- pos = safecat(msg, sizeof msg, pos, "floating point exception");
- break;
-
- case SIGILL:
- pos = safecat(msg, sizeof msg, pos, "illegal instruction");
- break;
-
- case SIGINT:
- pos = safecat(msg, sizeof msg, pos, "interrupt");
- break;
-
- case SIGSEGV:
- pos = safecat(msg, sizeof msg, pos, "invalid memory access");
- break;
-
- case SIGTERM:
- pos = safecat(msg, sizeof msg, pos, "termination request");
- break;
-
- default:
- pos = safecat(msg, sizeof msg, pos, "unknown ");
- pos = safecatn(msg, sizeof msg, pos, signum);
- break;
- }
-
- store_log(&pm.this, NULL/*png_structp*/, msg, 1/*error*/);
-
- /* And finally throw an exception so we can keep going, unless this is
- * SIGTERM in which case stop now.
- */
- if (signum != SIGTERM)
- {
- struct exception_context *the_exception_context =
- &pm.this.exception_context;
-
- Throw &pm.this;
- }
-
- else
- exit(1);
-}
-
-/* main program */
-int main(int argc, char **argv)
-{
- int summary = 1; /* Print the error summary at the end */
- int memstats = 0; /* Print memory statistics at the end */
-
- /* Create the given output file on success: */
- const char *touch = NULL;
-
- /* This is an array of standard gamma values (believe it or not I've seen
- * every one of these mentioned somewhere.)
- *
- * In the following list the most useful values are first!
- */
- static double
- gammas[]={2.2, 1.0, 2.2/1.45, 1.8, 1.5, 2.4, 2.5, 2.62, 2.9};
-
- /* This records the command and arguments: */
- size_t cp = 0;
- char command[1024];
-
- anon_context(&pm.this);
-
- gnu_volatile(summary)
- gnu_volatile(memstats)
- gnu_volatile(touch)
-
- /* Add appropriate signal handlers, just the ANSI specified ones: */
- signal(SIGABRT, signal_handler);
- signal(SIGFPE, signal_handler);
- signal(SIGILL, signal_handler);
- signal(SIGINT, signal_handler);
- signal(SIGSEGV, signal_handler);
- signal(SIGTERM, signal_handler);
-
-#ifdef HAVE_FEENABLEEXCEPT
- /* Only required to enable FP exceptions on platforms where they start off
- * disabled; this is not necessary but if it is not done pngvalid will likely
- * end up ignoring FP conditions that other platforms fault.
- */
- feenableexcept(FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW);
-#endif
-
- modifier_init(&pm);
-
- /* Preallocate the image buffer, because we know how big it needs to be,
- * note that, for testing purposes, it is deliberately mis-aligned by tag
- * bytes either side. All rows have an additional five bytes of padding for
- * overwrite checking.
- */
- store_ensure_image(&pm.this, NULL, 2, TRANSFORM_ROWMAX, TRANSFORM_HEIGHTMAX);
-
- /* Don't give argv[0], it's normally some horrible libtool string: */
- cp = safecat(command, sizeof command, cp, "pngvalid");
-
- /* Default to error on warning: */
- pm.this.treat_warnings_as_errors = 1;
-
- /* Default assume_16_bit_calculations appropriately; this tells the checking
- * code that 16-bit arithmetic is used for 8-bit samples when it would make a
- * difference.
- */
- pm.assume_16_bit_calculations = PNG_LIBPNG_VER >= 10700;
-
- /* Currently 16 bit expansion happens at the end of the pipeline, so the
- * calculations are done in the input bit depth not the output.
- *
- * TODO: fix this
- */
- pm.calculations_use_input_precision = 1U;
-
- /* Store the test gammas */
- pm.gammas = gammas;
- pm.ngammas = ARRAY_SIZE(gammas);
- pm.ngamma_tests = 0; /* default to off */
-
- /* Low bit depth gray images don't do well in the gamma tests, until
- * this is fixed turn them off for some gamma cases:
- */
-# ifdef PNG_WRITE_tRNS_SUPPORTED
- pm.test_tRNS = 1;
-# endif
- pm.test_lbg = PNG_LIBPNG_VER >= 10600;
- pm.test_lbg_gamma_threshold = 1;
- pm.test_lbg_gamma_transform = PNG_LIBPNG_VER >= 10600;
- pm.test_lbg_gamma_sbit = 1;
- pm.test_lbg_gamma_composition = PNG_LIBPNG_VER >= 10700;
-
- /* And the test encodings */
- pm.encodings = test_encodings;
- pm.nencodings = ARRAY_SIZE(test_encodings);
-
-# if PNG_LIBPNG_VER < 10700
- pm.sbitlow = 8U; /* because libpng doesn't do sBIT below 8! */
-# else
- pm.sbitlow = 1U;
-# endif
-
- /* The following allows results to pass if they correspond to anything in the
- * transformed range [input-.5,input+.5]; this is is required because of the
- * way libpng treates the 16_TO_8 flag when building the gamma tables in
- * releases up to 1.6.0.
- *
- * TODO: review this
- */
- pm.use_input_precision_16to8 = 1U;
- pm.use_input_precision_sbit = 1U; /* because libpng now rounds sBIT */
-
- /* Some default values (set the behavior for 'make check' here).
- * These values simply control the maximum error permitted in the gamma
- * transformations. The practical limits for human perception are described
- * below (the setting for maxpc16), however for 8 bit encodings it isn't
- * possible to meet the accepted capabilities of human vision - i.e. 8 bit
- * images can never be good enough, regardless of encoding.
- */
- pm.maxout8 = .1; /* Arithmetic error in *encoded* value */
- pm.maxabs8 = .00005; /* 1/20000 */
- pm.maxcalc8 = 1./255; /* +/-1 in 8 bits for compose errors */
- pm.maxpc8 = .499; /* I.e., .499% fractional error */
- pm.maxout16 = .499; /* Error in *encoded* value */
- pm.maxabs16 = .00005;/* 1/20000 */
- pm.maxcalc16 =1./65535;/* +/-1 in 16 bits for compose errors */
-# if PNG_LIBPNG_VER < 10700
- pm.maxcalcG = 1./((1<<PNG_MAX_GAMMA_8)-1);
-# else
- pm.maxcalcG = 1./((1<<16)-1);
-# endif
-
- /* NOTE: this is a reasonable perceptual limit. We assume that humans can
- * perceive light level differences of 1% over a 100:1 range, so we need to
- * maintain 1 in 10000 accuracy (in linear light space), which is what the
- * following guarantees. It also allows significantly higher errors at
- * higher 16 bit values, which is important for performance. The actual
- * maximum 16 bit error is about +/-1.9 in the fixed point implementation but
- * this is only allowed for values >38149 by the following:
- */
- pm.maxpc16 = .005; /* I.e., 1/200% - 1/20000 */
-
- /* Now parse the command line options. */
- while (--argc >= 1)
- {
- int catmore = 0; /* Set if the argument has an argument. */
-
- /* Record each argument for posterity: */
- cp = safecat(command, sizeof command, cp, " ");
- cp = safecat(command, sizeof command, cp, *++argv);
-
- if (strcmp(*argv, "-v") == 0)
- pm.this.verbose = 1;
-
- else if (strcmp(*argv, "-l") == 0)
- pm.log = 1;
-
- else if (strcmp(*argv, "-q") == 0)
- summary = pm.this.verbose = pm.log = 0;
-
- else if (strcmp(*argv, "-w") == 0 ||
- strcmp(*argv, "--strict") == 0)
- pm.this.treat_warnings_as_errors = 1; /* NOTE: this is the default! */
-
- else if (strcmp(*argv, "--nostrict") == 0)
- pm.this.treat_warnings_as_errors = 0;
-
- else if (strcmp(*argv, "--speed") == 0)
- pm.this.speed = 1, pm.ngamma_tests = pm.ngammas, pm.test_standard = 0,
- summary = 0;
-
- else if (strcmp(*argv, "--memory") == 0)
- memstats = 1;
-
- else if (strcmp(*argv, "--size") == 0)
- pm.test_size = 1;
-
- else if (strcmp(*argv, "--nosize") == 0)
- pm.test_size = 0;
-
- else if (strcmp(*argv, "--standard") == 0)
- pm.test_standard = 1;
-
- else if (strcmp(*argv, "--nostandard") == 0)
- pm.test_standard = 0;
-
- else if (strcmp(*argv, "--transform") == 0)
- pm.test_transform = 1;
-
- else if (strcmp(*argv, "--notransform") == 0)
- pm.test_transform = 0;
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
- else if (strncmp(*argv, "--transform-disable=",
- sizeof "--transform-disable") == 0)
- {
- pm.test_transform = 1;
- transform_disable(*argv + sizeof "--transform-disable");
- }
-
- else if (strncmp(*argv, "--transform-enable=",
- sizeof "--transform-enable") == 0)
- {
- pm.test_transform = 1;
- transform_enable(*argv + sizeof "--transform-enable");
- }
-#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
-
- else if (strcmp(*argv, "--gamma") == 0)
- {
- /* Just do two gamma tests here (2.2 and linear) for speed: */
- pm.ngamma_tests = 2U;
- pm.test_gamma_threshold = 1;
- pm.test_gamma_transform = 1;
- pm.test_gamma_sbit = 1;
- pm.test_gamma_scale16 = 1;
- pm.test_gamma_background = 1; /* composition */
- pm.test_gamma_alpha_mode = 1;
- }
-
- else if (strcmp(*argv, "--nogamma") == 0)
- pm.ngamma_tests = 0;
-
- else if (strcmp(*argv, "--gamma-threshold") == 0)
- pm.ngamma_tests = 2U, pm.test_gamma_threshold = 1;
-
- else if (strcmp(*argv, "--nogamma-threshold") == 0)
- pm.test_gamma_threshold = 0;
-
- else if (strcmp(*argv, "--gamma-transform") == 0)
- pm.ngamma_tests = 2U, pm.test_gamma_transform = 1;
-
- else if (strcmp(*argv, "--nogamma-transform") == 0)
- pm.test_gamma_transform = 0;
-
- else if (strcmp(*argv, "--gamma-sbit") == 0)
- pm.ngamma_tests = 2U, pm.test_gamma_sbit = 1;
-
- else if (strcmp(*argv, "--nogamma-sbit") == 0)
- pm.test_gamma_sbit = 0;
-
- else if (strcmp(*argv, "--gamma-16-to-8") == 0)
- pm.ngamma_tests = 2U, pm.test_gamma_scale16 = 1;
-
- else if (strcmp(*argv, "--nogamma-16-to-8") == 0)
- pm.test_gamma_scale16 = 0;
-
- else if (strcmp(*argv, "--gamma-background") == 0)
- pm.ngamma_tests = 2U, pm.test_gamma_background = 1;
-
- else if (strcmp(*argv, "--nogamma-background") == 0)
- pm.test_gamma_background = 0;
-
- else if (strcmp(*argv, "--gamma-alpha-mode") == 0)
- pm.ngamma_tests = 2U, pm.test_gamma_alpha_mode = 1;
-
- else if (strcmp(*argv, "--nogamma-alpha-mode") == 0)
- pm.test_gamma_alpha_mode = 0;
-
- else if (strcmp(*argv, "--expand16") == 0)
- pm.test_gamma_expand16 = 1;
-
- else if (strcmp(*argv, "--noexpand16") == 0)
- pm.test_gamma_expand16 = 0;
-
- else if (strcmp(*argv, "--low-depth-gray") == 0)
- pm.test_lbg = pm.test_lbg_gamma_threshold =
- pm.test_lbg_gamma_transform = pm.test_lbg_gamma_sbit =
- pm.test_lbg_gamma_composition = 1;
-
- else if (strcmp(*argv, "--nolow-depth-gray") == 0)
- pm.test_lbg = pm.test_lbg_gamma_threshold =
- pm.test_lbg_gamma_transform = pm.test_lbg_gamma_sbit =
- pm.test_lbg_gamma_composition = 0;
-
-# ifdef PNG_WRITE_tRNS_SUPPORTED
- else if (strcmp(*argv, "--tRNS") == 0)
- pm.test_tRNS = 1;
-# endif
-
- else if (strcmp(*argv, "--notRNS") == 0)
- pm.test_tRNS = 0;
-
- else if (strcmp(*argv, "--more-gammas") == 0)
- pm.ngamma_tests = 3U;
-
- else if (strcmp(*argv, "--all-gammas") == 0)
- pm.ngamma_tests = pm.ngammas;
-
- else if (strcmp(*argv, "--progressive-read") == 0)
- pm.this.progressive = 1;
-
- else if (strcmp(*argv, "--use-update-info") == 0)
- ++pm.use_update_info; /* Can call multiple times */
-
- else if (strcmp(*argv, "--interlace") == 0)
- {
-# if CAN_WRITE_INTERLACE
- pm.interlace_type = PNG_INTERLACE_ADAM7;
-# else /* !CAN_WRITE_INTERLACE */
- fprintf(stderr, "pngvalid: no write interlace support\n");
- return SKIP;
-# endif /* !CAN_WRITE_INTERLACE */
- }
-
- else if (strcmp(*argv, "--use-input-precision") == 0)
- pm.use_input_precision = 1U;
-
- else if (strcmp(*argv, "--use-calculation-precision") == 0)
- pm.use_input_precision = 0;
-
- else if (strcmp(*argv, "--calculations-use-input-precision") == 0)
- pm.calculations_use_input_precision = 1U;
-
- else if (strcmp(*argv, "--assume-16-bit-calculations") == 0)
- pm.assume_16_bit_calculations = 1U;
-
- else if (strcmp(*argv, "--calculations-follow-bit-depth") == 0)
- pm.calculations_use_input_precision =
- pm.assume_16_bit_calculations = 0;
-
- else if (strcmp(*argv, "--exhaustive") == 0)
- pm.test_exhaustive = 1;
-
- else if (argc > 1 && strcmp(*argv, "--sbitlow") == 0)
- --argc, pm.sbitlow = (png_byte)atoi(*++argv), catmore = 1;
-
- else if (argc > 1 && strcmp(*argv, "--touch") == 0)
- --argc, touch = *++argv, catmore = 1;
-
- else if (argc > 1 && strncmp(*argv, "--max", 5) == 0)
- {
- --argc;
-
- if (strcmp(5+*argv, "abs8") == 0)
- pm.maxabs8 = atof(*++argv);
-
- else if (strcmp(5+*argv, "abs16") == 0)
- pm.maxabs16 = atof(*++argv);
-
- else if (strcmp(5+*argv, "calc8") == 0)
- pm.maxcalc8 = atof(*++argv);
-
- else if (strcmp(5+*argv, "calc16") == 0)
- pm.maxcalc16 = atof(*++argv);
-
- else if (strcmp(5+*argv, "out8") == 0)
- pm.maxout8 = atof(*++argv);
-
- else if (strcmp(5+*argv, "out16") == 0)
- pm.maxout16 = atof(*++argv);
-
- else if (strcmp(5+*argv, "pc8") == 0)
- pm.maxpc8 = atof(*++argv);
-
- else if (strcmp(5+*argv, "pc16") == 0)
- pm.maxpc16 = atof(*++argv);
-
- else
- {
- fprintf(stderr, "pngvalid: %s: unknown 'max' option\n", *argv);
- exit(99);
- }
-
- catmore = 1;
- }
-
- else if (strcmp(*argv, "--log8") == 0)
- --argc, pm.log8 = atof(*++argv), catmore = 1;
-
- else if (strcmp(*argv, "--log16") == 0)
- --argc, pm.log16 = atof(*++argv), catmore = 1;
-
-#ifdef PNG_SET_OPTION_SUPPORTED
- else if (strncmp(*argv, "--option=", 9) == 0)
- {
- /* Syntax of the argument is <option>:{on|off} */
- const char *arg = 9+*argv;
- unsigned char option=0, setting=0;
-
-#ifdef PNG_ARM_NEON
- if (strncmp(arg, "arm-neon:", 9) == 0)
- option = PNG_ARM_NEON, arg += 9;
-
- else
-#endif
-#ifdef PNG_EXTENSIONS
- if (strncmp(arg, "extensions:", 11) == 0)
- option = PNG_EXTENSIONS, arg += 11;
-
- else
-#endif
-#ifdef PNG_MAXIMUM_INFLATE_WINDOW
- if (strncmp(arg, "max-inflate-window:", 19) == 0)
- option = PNG_MAXIMUM_INFLATE_WINDOW, arg += 19;
-
- else
-#endif
- {
- fprintf(stderr, "pngvalid: %s: %s: unknown option\n", *argv, arg);
- exit(99);
- }
-
- if (strcmp(arg, "off") == 0)
- setting = PNG_OPTION_OFF;
-
- else if (strcmp(arg, "on") == 0)
- setting = PNG_OPTION_ON;
-
- else
- {
- fprintf(stderr,
- "pngvalid: %s: %s: unknown setting (use 'on' or 'off')\n",
- *argv, arg);
- exit(99);
- }
-
- pm.this.options[pm.this.noptions].option = option;
- pm.this.options[pm.this.noptions++].setting = setting;
- }
-#endif /* PNG_SET_OPTION_SUPPORTED */
-
- else
- {
- fprintf(stderr, "pngvalid: %s: unknown argument\n", *argv);
- exit(99);
- }
-
- if (catmore) /* consumed an extra *argv */
- {
- cp = safecat(command, sizeof command, cp, " ");
- cp = safecat(command, sizeof command, cp, *argv);
- }
- }
-
- /* If pngvalid is run with no arguments default to a reasonable set of the
- * tests.
- */
- if (pm.test_standard == 0 && pm.test_size == 0 && pm.test_transform == 0 &&
- pm.ngamma_tests == 0)
- {
- /* Make this do all the tests done in the test shell scripts with the same
- * parameters, where possible. The limitation is that all the progressive
- * read and interlace stuff has to be done in separate runs, so only the
- * basic 'standard' and 'size' tests are done.
- */
- pm.test_standard = 1;
- pm.test_size = 1;
- pm.test_transform = 1;
- pm.ngamma_tests = 2U;
- }
-
- if (pm.ngamma_tests > 0 &&
- pm.test_gamma_threshold == 0 && pm.test_gamma_transform == 0 &&
- pm.test_gamma_sbit == 0 && pm.test_gamma_scale16 == 0 &&
- pm.test_gamma_background == 0 && pm.test_gamma_alpha_mode == 0)
- {
- pm.test_gamma_threshold = 1;
- pm.test_gamma_transform = 1;
- pm.test_gamma_sbit = 1;
- pm.test_gamma_scale16 = 1;
- pm.test_gamma_background = 1;
- pm.test_gamma_alpha_mode = 1;
- }
-
- else if (pm.ngamma_tests == 0)
- {
- /* Nothing to test so turn everything off: */
- pm.test_gamma_threshold = 0;
- pm.test_gamma_transform = 0;
- pm.test_gamma_sbit = 0;
- pm.test_gamma_scale16 = 0;
- pm.test_gamma_background = 0;
- pm.test_gamma_alpha_mode = 0;
- }
-
- Try
- {
- /* Make useful base images */
- make_transform_images(&pm);
-
- /* Perform the standard and gamma tests. */
- if (pm.test_standard)
- {
- perform_interlace_macro_validation();
- perform_formatting_test(&pm.this);
-# ifdef PNG_READ_SUPPORTED
- perform_standard_test(&pm);
-# endif
- perform_error_test(&pm);
- }
-
- /* Various oddly sized images: */
- if (pm.test_size)
- {
- make_size_images(&pm.this);
-# ifdef PNG_READ_SUPPORTED
- perform_size_test(&pm);
-# endif
- }
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
- /* Combinatorial transforms: */
- if (pm.test_transform)
- perform_transform_test(&pm);
-#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
- if (pm.ngamma_tests > 0)
- perform_gamma_test(&pm, summary);
-#endif
- }
-
- Catch_anonymous
- {
- fprintf(stderr, "pngvalid: test aborted (probably failed in cleanup)\n");
- if (!pm.this.verbose)
- {
- if (pm.this.error[0] != 0)
- fprintf(stderr, "pngvalid: first error: %s\n", pm.this.error);
-
- fprintf(stderr, "pngvalid: run with -v to see what happened\n");
- }
- exit(1);
- }
-
- if (summary)
- {
- printf("%s: %s (%s point arithmetic)\n",
- (pm.this.nerrors || (pm.this.treat_warnings_as_errors &&
- pm.this.nwarnings)) ? "FAIL" : "PASS",
- command,
-#if defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) || PNG_LIBPNG_VER < 10500
- "floating"
-#else
- "fixed"
-#endif
- );
- }
-
- if (memstats)
- {
- printf("Allocated memory statistics (in bytes):\n"
- "\tread %lu maximum single, %lu peak, %lu total\n"
- "\twrite %lu maximum single, %lu peak, %lu total\n",
- (unsigned long)pm.this.read_memory_pool.max_max,
- (unsigned long)pm.this.read_memory_pool.max_limit,
- (unsigned long)pm.this.read_memory_pool.max_total,
- (unsigned long)pm.this.write_memory_pool.max_max,
- (unsigned long)pm.this.write_memory_pool.max_limit,
- (unsigned long)pm.this.write_memory_pool.max_total);
- }
-
- /* Do this here to provoke memory corruption errors in memory not directly
- * allocated by libpng - not a complete test, but better than nothing.
- */
- store_delete(&pm.this);
-
- /* Error exit if there are any errors, and maybe if there are any
- * warnings.
- */
- if (pm.this.nerrors || (pm.this.treat_warnings_as_errors &&
- pm.this.nwarnings))
- {
- if (!pm.this.verbose)
- fprintf(stderr, "pngvalid: %s\n", pm.this.error);
-
- fprintf(stderr, "pngvalid: %d errors, %d warnings\n", pm.this.nerrors,
- pm.this.nwarnings);
-
- exit(1);
- }
-
- /* Success case. */
- if (touch != NULL)
- {
- FILE *fsuccess = fopen(touch, "wt");
-
- if (fsuccess != NULL)
- {
- int error = 0;
- fprintf(fsuccess, "PNG validation succeeded\n");
- fflush(fsuccess);
- error = ferror(fsuccess);
-
- if (fclose(fsuccess) || error)
- {
- fprintf(stderr, "%s: write failed\n", touch);
- exit(1);
- }
- }
-
- else
- {
- fprintf(stderr, "%s: open failed\n", touch);
- exit(1);
- }
- }
-
- /* This is required because some very minimal configurations do not use it:
- */
- UNUSED(fail)
- return 0;
-}
-#else /* write or low level APIs not supported */
-int main(void)
-{
- fprintf(stderr,
- "pngvalid: no low level write support in libpng, all tests skipped\n");
- /* So the test is skipped: */
- return SKIP;
-}
-#endif
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngvalid.o b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngvalid.o
deleted file mode 100644
index 3690c9d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/pngvalid.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/readpng.c b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/readpng.c
deleted file mode 100644
index 60a2d46..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/readpng.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/* readpng.c
- *
- * Copyright (c) 2013 John Cunningham Bowler
- *
- * Last changed in libpng 1.6.1 [March 28, 2013]
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Load an arbitrary number of PNG files (from the command line, or, if there
- * are no arguments on the command line, from stdin) then run a time test by
- * reading each file by row. The test does nothing with the read result and
- * does no transforms. The only output is a time as a floating point number of
- * seconds with 9 decimal digits.
- */
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
-#if defined(HAVE_CONFIG_H) && !defined(PNG_NO_CONFIG_H)
-# include <config.h>
-#endif
-
-/* Define the following to use this test against your installed libpng, rather
- * than the one being built here:
- */
-#ifdef PNG_FREESTANDING_TESTS
-# include <png.h>
-#else
-# include "../../png.h"
-#endif
-
-static int
-read_png(FILE *fp)
-{
- png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,0,0,0);
- png_infop info_ptr = NULL;
- png_bytep row = NULL, display = NULL;
-
- if (png_ptr == NULL)
- return 0;
-
- if (setjmp(png_jmpbuf(png_ptr)))
- {
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- if (row != NULL) free(row);
- if (display != NULL) free(display);
- return 0;
- }
-
- png_init_io(png_ptr, fp);
-
- info_ptr = png_create_info_struct(png_ptr);
- if (info_ptr == NULL)
- png_error(png_ptr, "OOM allocating info structure");
-
- png_set_keep_unknown_chunks(png_ptr, PNG_HANDLE_CHUNK_ALWAYS, NULL, 0);
-
- png_read_info(png_ptr, info_ptr);
-
- {
- size_t rowbytes = png_get_rowbytes(png_ptr, info_ptr);
-
- /* Failure to initialize these is harmless */
- row = malloc(rowbytes);
- display = malloc(rowbytes);
-
- if (row == NULL || display == NULL)
- png_error(png_ptr, "OOM allocating row buffers");
-
- {
- png_uint_32 height = png_get_image_height(png_ptr, info_ptr);
-# ifdef PNG_READ_INTERLACING_SUPPORTED
- int passes = png_set_interlace_handling(png_ptr);
-# else /* !READ_INTERLACING */
- int passes = png_get_interlace_type(png_ptr, info_ptr) ==
- PNG_INTERLACE_ADAM7 ? PNG_INTERLACE_ADAM7_PASSES : 1;
-# endif /* !READ_INTERLACING */
- int pass;
-
- png_start_read_image(png_ptr);
-
- for (pass = 0; pass < passes; ++pass)
- {
- png_uint_32 y = height;
-
-# ifndef PNG_READ_INTERLACING_SUPPORTED
- if (passes == PNG_INTERLACE_ADAM7_PASSES)
- y = PNG_PASS_ROWS(y, pass);
-# endif /* READ_INTERLACING */
-
- /* NOTE: this trashes the row each time; interlace handling won't
- * work, but this avoids memory thrashing for speed testing.
- */
- while (y-- > 0)
- png_read_row(png_ptr, row, display);
- }
- }
- }
-
- /* Make sure to read to the end of the file: */
- png_read_end(png_ptr, info_ptr);
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- free(row);
- free(display);
- return 1;
-}
-
-int
-main(void)
-{
- /* Exit code 0 on success. */
- return !read_png(stdin);
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/tarith.c b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/tarith.c
deleted file mode 100644
index c03f05a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/tarith.c
+++ /dev/null
@@ -1,999 +0,0 @@
-
-/* tarith.c
- *
- * Copyright (c) 2011-2013 John Cunningham Bowler
- *
- * Last changed in libpng 1.6.0 [February 14, 2013]
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Test internal arithmetic functions of libpng.
- *
- * This code must be linked against a math library (-lm), but does not require
- * libpng or zlib to work. Because it includes the complete source of 'png.c'
- * it tests the code with whatever compiler options are used to build it.
- * Changing these options can substantially change the errors in the
- * calculations that the compiler chooses!
- */
-#define _POSIX_SOURCE 1
-#define _ISOC99_SOURCE 1
-
-/* Obtain a copy of the code to be tested (plus other things), disabling
- * stuff that is not required.
- */
-#include <math.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <string.h>
-#include <assert.h>
-
-#include "../../pngpriv.h"
-
-#define png_error png_warning
-
-void png_warning(png_const_structrp png_ptr, png_const_charp msg)
-{
- fprintf(stderr, "validation: %s\n", msg);
-}
-
-#define png_fixed_error png_fixed_warning
-
-void png_fixed_warning(png_const_structrp png_ptr, png_const_charp msg)
-{
- fprintf(stderr, "overflow in: %s\n", msg);
-}
-
-#define png_set_error_fn(pp, ep, efp, wfp) ((void)0)
-#define png_malloc(pp, s) malloc(s)
-#define png_malloc_warn(pp, s) malloc(s)
-#define png_malloc_base(pp, s) malloc(s)
-#define png_calloc(pp, s) calloc(1, (s))
-#define png_free(pp, s) free(s)
-
-#define png_safecat(b, sb, pos, str) (pos)
-#define png_format_number(start, end, format, number) (start)
-
-#define crc32(crc, pp, s) (crc)
-#define inflateReset(zs) Z_OK
-
-#define png_create_struct(type) (0)
-#define png_destroy_struct(pp) ((void)0)
-#define png_create_struct_2(type, m, mm) (0)
-#define png_destroy_struct_2(pp, f, mm) ((void)0)
-
-#undef PNG_SIMPLIFIED_READ_SUPPORTED
-#undef PNG_SIMPLIFIED_WRITE_SUPPORTED
-#undef PNG_USER_MEM_SUPPORTED
-
-#include "../../png.c"
-
-/* Validate ASCII to fp routines. */
-static int verbose = 0;
-
-int validation_ascii_to_fp(int count, int argc, char **argv)
-{
- int showall = 0;
- double max_error=2; /* As a percentage error-in-last-digit/.5 */
- double max_error_abs=17; /* Used when precision is DBL_DIG */
- double max = 0;
- double max_abs = 0;
- double test = 0; /* Important to test this. */
- int precision = 5;
- int nonfinite = 0;
- int finite = 0;
- int ok = 0;
- int failcount = 0;
- int minorarith = 0;
-
- while (--argc > 0)
- if (strcmp(*++argv, "-a") == 0)
- showall = 1;
- else if (strcmp(*argv, "-e") == 0 && argc > 0)
- {
- --argc;
- max_error = atof(*++argv);
- }
- else if (strcmp(*argv, "-E") == 0 && argc > 0)
- {
- --argc;
- max_error_abs = atof(*++argv);
- }
- else
- {
- fprintf(stderr, "unknown argument %s\n", *argv);
- return 1;
- }
-
- do
- {
- size_t index;
- int state, failed = 0;
- char buffer[64];
-
- if (isfinite(test))
- ++finite;
- else
- ++nonfinite;
-
- if (verbose)
- fprintf(stderr, "%.*g %d\n", DBL_DIG, test, precision);
-
- /* Check for overflow in the buffer by setting a marker. */
- memset(buffer, 71, sizeof buffer);
-
- png_ascii_from_fp(0, buffer, precision+10, test, precision);
-
- /* Allow for a three digit exponent, this stuff will fail if
- * the exponent is bigger than this!
- */
- if (buffer[precision+7] != 71)
- {
- fprintf(stderr, "%g[%d] -> '%s'[%lu] buffer overflow\n", test,
- precision, buffer, (unsigned long)strlen(buffer));
- failed = 1;
- }
-
- /* Following are used for the number parser below and must be
- * initialized to zero.
- */
- state = 0;
- index = 0;
- if (!isfinite(test))
- {
- /* Expect 'inf' */
- if (test >= 0 && strcmp(buffer, "inf") ||
- test < 0 && strcmp(buffer, "-inf"))
- {
- fprintf(stderr, "%g[%d] -> '%s' but expected 'inf'\n", test,
- precision, buffer);
- failed = 1;
- }
- }
- else if (!png_check_fp_number(buffer, precision+10, &state, &index) ||
- buffer[index] != 0)
- {
- fprintf(stderr, "%g[%d] -> '%s' but has bad format ('%c')\n", test,
- precision, buffer, buffer[index]);
- failed = 1;
- }
- else if (PNG_FP_IS_NEGATIVE(state) && !(test < 0))
- {
- fprintf(stderr, "%g[%d] -> '%s' but negative value not so reported\n",
- test, precision, buffer);
- failed = 1;
- assert(!PNG_FP_IS_ZERO(state));
- assert(!PNG_FP_IS_POSITIVE(state));
- }
- else if (PNG_FP_IS_ZERO(state) && !(test == 0))
- {
- fprintf(stderr, "%g[%d] -> '%s' but zero value not so reported\n",
- test, precision, buffer);
- failed = 1;
- assert(!PNG_FP_IS_NEGATIVE(state));
- assert(!PNG_FP_IS_POSITIVE(state));
- }
- else if (PNG_FP_IS_POSITIVE(state) && !(test > 0))
- {
- fprintf(stderr, "%g[%d] -> '%s' but positive value not so reported\n",
- test, precision, buffer);
- failed = 1;
- assert(!PNG_FP_IS_NEGATIVE(state));
- assert(!PNG_FP_IS_ZERO(state));
- }
- else
- {
- /* Check the result against the original. */
- double out = atof(buffer);
- double change = fabs((out - test)/test);
- double allow = .5/pow(10,
- (precision >= DBL_DIG) ? DBL_DIG-1 : precision-1);
-
- /* NOTE: if you hit this error case are you compiling with gcc
- * and -O0? Try -O2 - the errors can accumulate if the FP
- * code above is not optimized and may drift outside the .5 in
- * DBL_DIG allowed. In any case a small number of errors may
- * occur (very small ones - 1 or 2%) because of rounding in the
- * calculations, either in the conversion API or in atof.
- */
- if (change >= allow && (isfinite(out) ||
- fabs(test/DBL_MAX) <= 1-allow))
- {
- double percent = (precision >= DBL_DIG) ? max_error_abs : max_error;
- double allowp = (change-allow)*100/allow;
-
- if (precision >= DBL_DIG)
- {
- if (max_abs < allowp) max_abs = allowp;
- }
-
- else
- {
- if (max < allowp) max = allowp;
- }
-
- if (showall || allowp >= percent)
- {
- fprintf(stderr,
- "%.*g[%d] -> '%s' -> %.*g number changed (%g > %g (%d%%))\n",
- DBL_DIG, test, precision, buffer, DBL_DIG, out, change, allow,
- (int)round(allowp));
- failed = 1;
- }
- else
- ++minorarith;
- }
- }
-
- if (failed)
- ++failcount;
- else
- ++ok;
-
-skip:
- /* Generate a new number and precision. */
- precision = rand();
- if (precision & 1) test = -test;
- precision >>= 1;
-
- /* Generate random numbers. */
- if (test == 0 || !isfinite(test))
- test = precision+1;
- else
- {
- /* Derive the exponent from the previous rand() value. */
- int exponent = precision % (DBL_MAX_EXP - DBL_MIN_EXP) + DBL_MIN_EXP;
- int tmp;
- test = frexp(test * rand(), &tmp);
- test = ldexp(test, exponent);
- precision >>= 8; /* arbitrary */
- }
-
- /* This limits the precision to 32 digits, enough for standard
- * IEEE implementations which have at most 15 digits.
- */
- precision = (precision & 0x1f) + 1;
- }
- while (--count);
-
- printf("Tested %d finite values, %d non-finite, %d OK (%d failed) %d minor "
- "arithmetic errors\n", finite, nonfinite, ok, failcount, minorarith);
- printf(" Error with >=%d digit precision %.2f%%\n", DBL_DIG, max_abs);
- printf(" Error with < %d digit precision %.2f%%\n", DBL_DIG, max);
-
- return 0;
-}
-
-/* Observe that valid FP numbers have the forms listed in the PNG extensions
- * specification:
- *
- * [+,-]{integer,integer.fraction,.fraction}[{e,E}[+,-]integer]
- *
- * Test each of these in turn, including invalid cases.
- */
-typedef enum checkfp_state
-{
- start, fraction, exponent, states
-} checkfp_state;
-
-/* The characters (other than digits) that characterize the states: */
-static const char none[] = "";
-static const char hexdigits[16] = "0123456789ABCDEF";
-
-static const struct
-{
- const char *start; /* Characters valid at the start */
- const char *end; /* Valid characters that end the state */
- const char *tests; /* Characters to test after 2 digits seen */
-}
-state_characters[states] =
-{
- /* start: */ { "+-.", ".eE", "+-.e*0369" },
- /* fraction: */ { none, "eE", "+-.E#0147" },
- /* exponent: */ { "+-", none, "+-.eE^0258" }
-};
-
-typedef struct
-{
- char number[1024]; /* Buffer for number being tested */
- int limit; /* Command line limit */
- int verbose; /* Shadows global variable */
- int ctimes; /* Number of numbers tested */
- int cmillions; /* Count of millions of numbers */
- int cinvalid; /* Invalid strings checked */
- int cnoaccept; /* Characters not accepted */
-}
-checkfp_command;
-
-typedef struct
-{
- int cnumber; /* Index into number string */
- checkfp_state check_state; /* Current number state */
- int at_start; /* At start (first character) of state */
- int cdigits_in_state; /* Digits seen in that state */
- int limit; /* Limit on same for checking all chars */
- int state; /* Current parser state */
- int is_negative; /* Number is negative */
- int is_zero; /* Number is (still) zero */
- int number_was_valid; /* Previous character validity */
-}
-checkfp_control;
-
-static int check_all_characters(checkfp_command *co, checkfp_control c);
-
-static int check_some_characters(checkfp_command *co, checkfp_control c,
- const char *tests);
-
-static int check_one_character(checkfp_command *co, checkfp_control c, int ch)
-{
- /* Test this character (ch) to ensure the parser does the correct thing.
- */
- size_t index = 0;
- const char test = (char)ch;
- int number_is_valid = png_check_fp_number(&test, 1, &c.state, &index);
- int character_accepted = (index == 1);
-
- if (c.check_state != exponent && isdigit(ch) && ch != '0')
- c.is_zero = 0;
-
- if (c.check_state == start && c.at_start && ch == '-')
- c.is_negative = 1;
-
- if (isprint(ch))
- co->number[c.cnumber++] = (char)ch;
- else
- {
- co->number[c.cnumber++] = '<';
- co->number[c.cnumber++] = hexdigits[(ch >> 4) & 0xf];
- co->number[c.cnumber++] = hexdigits[ch & 0xf];
- co->number[c.cnumber++] = '>';
- }
- co->number[c.cnumber] = 0;
-
- if (co->verbose > 1)
- fprintf(stderr, "%s\n", co->number);
-
- if (++(co->ctimes) == 1000000)
- {
- if (co->verbose == 1)
- fputc('.', stderr);
- co->ctimes = 0;
- ++(co->cmillions);
- }
-
- if (!number_is_valid)
- ++(co->cinvalid);
-
- if (!character_accepted)
- ++(co->cnoaccept);
-
- /* This should never fail (it's a serious bug if it does): */
- if (index != 0 && index != 1)
- {
- fprintf(stderr, "%s: read beyond end of string (%lu)\n", co->number,
- (unsigned long)index);
- return 0;
- }
-
- /* Validate the new state, note that the PNG_FP_IS_ macros all return
- * false unless the number is valid.
- */
- if (PNG_FP_IS_NEGATIVE(c.state) !=
- (number_is_valid && !c.is_zero && c.is_negative))
- {
- fprintf(stderr, "%s: negative when it is not\n", co->number);
- return 0;
- }
-
- if (PNG_FP_IS_ZERO(c.state) != (number_is_valid && c.is_zero))
- {
- fprintf(stderr, "%s: zero when it is not\n", co->number);
- return 0;
- }
-
- if (PNG_FP_IS_POSITIVE(c.state) !=
- (number_is_valid && !c.is_zero && !c.is_negative))
- {
- fprintf(stderr, "%s: positive when it is not\n", co->number);
- return 0;
- }
-
- /* Testing a digit */
- if (isdigit(ch))
- {
- if (!character_accepted)
- {
- fprintf(stderr, "%s: digit '%c' not accepted\n", co->number, ch);
- return 0;
- }
-
- if (!number_is_valid)
- {
- fprintf(stderr, "%s: saw a digit (%c) but number not valid\n",
- co->number, ch);
- return 0;
- }
-
- ++c.cdigits_in_state;
- c.at_start = 0;
- c.number_was_valid = 1;
-
- /* Continue testing characters in this state. Either test all of
- * them or, if we have already seen one digit in this state, just test a
- * limited set.
- */
- if (c.cdigits_in_state < 1)
- return check_all_characters(co, c);
-
- else
- return check_some_characters(co, c,
- state_characters[c.check_state].tests);
- }
-
- /* A non-digit; is it allowed here? */
- else if (((ch == '+' || ch == '-') && c.check_state != fraction &&
- c.at_start) ||
- (ch == '.' && c.check_state == start) ||
- ((ch == 'e' || ch == 'E') && c.number_was_valid &&
- c.check_state != exponent))
- {
- if (!character_accepted)
- {
- fprintf(stderr, "%s: character '%c' not accepted\n", co->number, ch);
- return 0;
- }
-
- /* The number remains valid after start of fraction but nowhere else. */
- if (number_is_valid && (c.check_state != start || ch != '.'))
- {
- fprintf(stderr, "%s: saw a non-digit (%c) but number valid\n",
- co->number, ch);
- return 0;
- }
-
- c.number_was_valid = number_is_valid;
-
- /* Check for a state change. When changing to 'fraction' if the number
- * is valid at this point set the at_start to false to allow an exponent
- * 'e' to come next.
- */
- if (c.check_state == start && ch == '.')
- {
- c.check_state = fraction;
- c.at_start = !number_is_valid;
- c.cdigits_in_state = 0;
- c.limit = co->limit;
- return check_all_characters(co, c);
- }
-
- else if (c.check_state < exponent && (ch == 'e' || ch == 'E'))
- {
- c.check_state = exponent;
- c.at_start = 1;
- c.cdigits_in_state = 0;
- c.limit = co->limit;
- return check_all_characters(co, c);
- }
-
- /* Else it was a sign, and the state doesn't change. */
- else
- {
- if (ch != '-' && ch != '+')
- {
- fprintf(stderr, "checkfp: internal error (1)\n");
- return 0;
- }
-
- c.at_start = 0;
- return check_all_characters(co, c);
- }
- }
-
- /* Testing an invalid character */
- else
- {
- if (character_accepted)
- {
- fprintf(stderr, "%s: character '%c' [0x%.2x] accepted\n", co->number,
- ch, ch);
- return 0;
- }
-
- if (number_is_valid != c.number_was_valid)
- {
- fprintf(stderr,
- "%s: character '%c' [0x%.2x] changed number validity\n", co->number,
- ch, ch);
- return 0;
- }
-
- /* Do nothing - the parser has stuck; return success and keep going with
- * the next character.
- */
- }
-
- /* Successful return (the caller will try the next character.) */
- return 1;
-}
-
-static int check_all_characters(checkfp_command *co, checkfp_control c)
-{
- int ch;
-
- if (c.cnumber+4 < sizeof co->number) for (ch=0; ch<256; ++ch)
- {
- if (!check_one_character(co, c, ch))
- return 0;
- }
-
- return 1;
-}
-
-static int check_some_characters(checkfp_command *co, checkfp_control c,
- const char *tests)
-{
- int i;
-
- --(c.limit);
-
- if (c.cnumber+4 < sizeof co->number && c.limit >= 0)
- {
- if (c.limit > 0) for (i=0; tests[i]; ++i)
- {
- if (!check_one_character(co, c, tests[i]))
- return 0;
- }
-
- /* At the end check all the characters. */
- else
- return check_all_characters(co, c);
- }
-
- return 1;
-}
-
-int validation_checkfp(int count, int argc, char **argv)
-{
- int result;
- checkfp_command command;
- checkfp_control control;
-
- command.number[0] = 0;
- command.limit = 3;
- command.verbose = verbose;
- command.ctimes = 0;
- command.cmillions = 0;
- command.cinvalid = 0;
- command.cnoaccept = 0;
-
- while (--argc > 0)
- {
- ++argv;
- if (argc > 1 && strcmp(*argv, "-l") == 0)
- {
- --argc;
- command.limit = atoi(*++argv);
- }
-
- else
- {
- fprintf(stderr, "unknown argument %s\n", *argv);
- return 1;
- }
- }
-
- control.cnumber = 0;
- control.check_state = start;
- control.at_start = 1;
- control.cdigits_in_state = 0;
- control.limit = command.limit;
- control.state = 0;
- control.is_negative = 0;
- control.is_zero = 1;
- control.number_was_valid = 0;
-
- result = check_all_characters(&command, control);
-
- printf("checkfp: %s: checked %d,%.3d,%.3d,%.3d strings (%d invalid)\n",
- result ? "pass" : "FAIL", command.cmillions / 1000,
- command.cmillions % 1000, command.ctimes / 1000, command.ctimes % 1000,
- command.cinvalid);
-
- return result;
-}
-
-int validation_muldiv(int count, int argc, char **argv)
-{
- int tested = 0;
- int overflow = 0;
- int error = 0;
- int error64 = 0;
- int passed = 0;
- int randbits = 0;
- png_uint_32 randbuffer;
- png_fixed_point a;
- png_int_32 times, div;
-
- while (--argc > 0)
- {
- fprintf(stderr, "unknown argument %s\n", *++argv);
- return 1;
- }
-
- /* Find out about the random number generator. */
- randbuffer = RAND_MAX;
- while (randbuffer != 0) ++randbits, randbuffer >>= 1;
- printf("Using random number generator that makes %d bits\n", randbits);
- for (div=0; div<32; div += randbits)
- randbuffer = (randbuffer << randbits) ^ rand();
-
- a = 0;
- times = div = 0;
- do
- {
- png_fixed_point result;
- /* NOTE: your mileage may vary, a type is required below that can
- * hold 64 bits or more, if floating point is used a 64-bit or
- * better mantissa is required.
- */
- long long int fp, fpround;
- unsigned long hi, lo;
- int ok;
-
- /* Check the values, png_64bit_product can only handle positive
- * numbers, so correct for that here.
- */
- {
- long u1, u2;
- int n = 0;
- if (a < 0) u1 = -a, n = 1; else u1 = a;
- if (times < 0) u2 = -times, n = !n; else u2 = times;
- png_64bit_product(u1, u2, &hi, &lo);
- if (n)
- {
- /* -x = ~x+1 */
- lo = ((~lo) + 1) & 0xffffffff;
- hi = ~hi;
- if (lo == 0) ++hi;
- }
- }
-
- fp = a;
- fp *= times;
- if ((fp & 0xffffffff) != lo || ((fp >> 32) & 0xffffffff) != hi)
- {
- fprintf(stderr, "png_64bit_product %d * %d -> %lx|%.8lx not %llx\n",
- a, times, hi, lo, fp);
- ++error64;
- }
-
- if (div != 0)
- {
- /* Round - this is C round to zero. */
- if ((fp < 0) != (div < 0))
- fp -= div/2;
- else
- fp += div/2;
-
- fp /= div;
- fpround = fp;
- /* Assume 2's complement here: */
- ok = fpround <= PNG_UINT_31_MAX &&
- fpround >= -1-(long long int)PNG_UINT_31_MAX;
- if (!ok) ++overflow;
- }
- else
- ok = 0, ++overflow, fpround = fp/*misleading*/;
-
- if (verbose)
- fprintf(stderr, "TEST %d * %d / %d -> %lld (%s)\n", a, times, div,
- fp, ok ? "ok" : "overflow");
-
- ++tested;
- if (png_muldiv(&result, a, times, div) != ok)
- {
- ++error;
- if (ok)
- fprintf(stderr, "%d * %d / %d -> overflow (expected %lld)\n", a,
- times, div, fp);
- else
- fprintf(stderr, "%d * %d / %d -> %d (expected overflow %lld)\n", a,
- times, div, result, fp);
- }
- else if (ok && result != fpround)
- {
- ++error;
- fprintf(stderr, "%d * %d / %d -> %d not %lld\n", a, times, div, result,
- fp);
- }
- else
- ++passed;
-
- /* Generate three new values, this uses rand() and rand() only returns
- * up to RAND_MAX.
- */
- /* CRUDE */
- a += times;
- times += div;
- div = randbuffer;
- randbuffer = (randbuffer << randbits) ^ rand();
- }
- while (--count > 0);
-
- printf("%d tests including %d overflows, %d passed, %d failed (%d 64-bit "
- "errors)\n", tested, overflow, passed, error, error64);
- return 0;
-}
-
-/* When FP is on this just becomes a speed test - compile without FP to get real
- * validation.
- */
-#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
-#define LN2 .000010576586617430806112933839 /* log(2)/65536 */
-#define L2INV 94548.46219969910586572651 /* 65536/log(2) */
-
-/* For speed testing, need the internal functions too: */
-static png_uint_32 png_log8bit(unsigned x)
-{
- if (x > 0)
- return (png_uint_32)floor(.5-log(x/255.)*L2INV);
-
- return 0xffffffff;
-}
-
-static png_uint_32 png_log16bit(png_uint_32 x)
-{
- if (x > 0)
- return (png_uint_32)floor(.5-log(x/65535.)*L2INV);
-
- return 0xffffffff;
-}
-
-static png_uint_32 png_exp(png_uint_32 x)
-{
- return (png_uint_32)floor(.5 + exp(x * -LN2) * 0xffffffffU);
-}
-
-static png_byte png_exp8bit(png_uint_32 log)
-{
- return (png_byte)floor(.5 + exp(log * -LN2) * 255);
-}
-
-static png_uint_16 png_exp16bit(png_uint_32 log)
-{
- return (png_uint_16)floor(.5 + exp(log * -LN2) * 65535);
-}
-#endif /* FLOATING_ARITHMETIC */
-
-int validation_gamma(int argc, char **argv)
-{
- double gamma[9] = { 2.2, 1.8, 1.52, 1.45, 1., 1/1.45, 1/1.52, 1/1.8, 1/2.2 };
- double maxerr;
- int i, silent=0, onlygamma=0;
-
- /* Silence the output with -s, just test the gamma functions with -g: */
- while (--argc > 0)
- if (strcmp(*++argv, "-s") == 0)
- silent = 1;
- else if (strcmp(*argv, "-g") == 0)
- onlygamma = 1;
- else
- {
- fprintf(stderr, "unknown argument %s\n", *argv);
- return 1;
- }
-
- if (!onlygamma)
- {
- /* First validate the log functions: */
- maxerr = 0;
- for (i=0; i<256; ++i)
- {
- double correct = -log(i/255.)/log(2.)*65536;
- double error = png_log8bit(i) - correct;
-
- if (i != 0 && fabs(error) > maxerr)
- maxerr = fabs(error);
-
- if (i == 0 && png_log8bit(i) != 0xffffffff ||
- i != 0 && png_log8bit(i) != floor(correct+.5))
- {
- fprintf(stderr, "8-bit log error: %d: got %u, expected %f\n",
- i, png_log8bit(i), correct);
- }
- }
-
- if (!silent)
- printf("maximum 8-bit log error = %f\n", maxerr);
-
- maxerr = 0;
- for (i=0; i<65536; ++i)
- {
- double correct = -log(i/65535.)/log(2.)*65536;
- double error = png_log16bit(i) - correct;
-
- if (i != 0 && fabs(error) > maxerr)
- maxerr = fabs(error);
-
- if (i == 0 && png_log16bit(i) != 0xffffffff ||
- i != 0 && png_log16bit(i) != floor(correct+.5))
- {
- if (error > .68) /* By experiment error is less than .68 */
- {
- fprintf(stderr, "16-bit log error: %d: got %u, expected %f"
- " error: %f\n", i, png_log16bit(i), correct, error);
- }
- }
- }
-
- if (!silent)
- printf("maximum 16-bit log error = %f\n", maxerr);
-
- /* Now exponentiations. */
- maxerr = 0;
- for (i=0; i<=0xfffff; ++i)
- {
- double correct = exp(-i/65536. * log(2.)) * (65536. * 65536);
- double error = png_exp(i) - correct;
-
- if (fabs(error) > maxerr)
- maxerr = fabs(error);
- if (fabs(error) > 1883) /* By experiment. */
- {
- fprintf(stderr, "32-bit exp error: %d: got %u, expected %f"
- " error: %f\n", i, png_exp(i), correct, error);
- }
- }
-
- if (!silent)
- printf("maximum 32-bit exp error = %f\n", maxerr);
-
- maxerr = 0;
- for (i=0; i<=0xfffff; ++i)
- {
- double correct = exp(-i/65536. * log(2.)) * 255;
- double error = png_exp8bit(i) - correct;
-
- if (fabs(error) > maxerr)
- maxerr = fabs(error);
- if (fabs(error) > .50002) /* By experiment */
- {
- fprintf(stderr, "8-bit exp error: %d: got %u, expected %f"
- " error: %f\n", i, png_exp8bit(i), correct, error);
- }
- }
-
- if (!silent)
- printf("maximum 8-bit exp error = %f\n", maxerr);
-
- maxerr = 0;
- for (i=0; i<=0xfffff; ++i)
- {
- double correct = exp(-i/65536. * log(2.)) * 65535;
- double error = png_exp16bit(i) - correct;
-
- if (fabs(error) > maxerr)
- maxerr = fabs(error);
- if (fabs(error) > .524) /* By experiment */
- {
- fprintf(stderr, "16-bit exp error: %d: got %u, expected %f"
- " error: %f\n", i, png_exp16bit(i), correct, error);
- }
- }
-
- if (!silent)
- printf("maximum 16-bit exp error = %f\n", maxerr);
- } /* !onlygamma */
-
- /* Test the overall gamma correction. */
- for (i=0; i<9; ++i)
- {
- unsigned j;
- double g = gamma[i];
- png_fixed_point gfp = floor(g * PNG_FP_1 + .5);
-
- if (!silent)
- printf("Test gamma %f\n", g);
-
- maxerr = 0;
- for (j=0; j<256; ++j)
- {
- double correct = pow(j/255., g) * 255;
- png_byte out = png_gamma_8bit_correct(j, gfp);
- double error = out - correct;
-
- if (fabs(error) > maxerr)
- maxerr = fabs(error);
- if (out != floor(correct+.5))
- {
- fprintf(stderr, "8bit %d ^ %f: got %d expected %f error %f\n",
- j, g, out, correct, error);
- }
- }
-
- if (!silent)
- printf("gamma %f: maximum 8-bit error %f\n", g, maxerr);
-
- maxerr = 0;
- for (j=0; j<65536; ++j)
- {
- double correct = pow(j/65535., g) * 65535;
- png_uint_16 out = png_gamma_16bit_correct(j, gfp);
- double error = out - correct;
-
- if (fabs(error) > maxerr)
- maxerr = fabs(error);
- if (fabs(error) > 1.62)
- {
- fprintf(stderr, "16bit %d ^ %f: got %d expected %f error %f\n",
- j, g, out, correct, error);
- }
- }
-
- if (!silent)
- printf("gamma %f: maximum 16-bit error %f\n", g, maxerr);
- }
-
- return 0;
-}
-
-/**************************** VALIDATION TESTS ********************************/
-/* Various validation routines are included herein, they require some
- * definition for png_warning and png_error, seetings of VALIDATION:
- *
- * 1: validates the ASCII to floating point conversions
- * 2: validates png_muldiv
- * 3: accuracy test of fixed point gamma tables
- */
-
-/* The following COUNT (10^8) takes about 1 hour on a 1GHz Pentium IV
- * processor.
- */
-#define COUNT 1000000000
-
-int main(int argc, char **argv)
-{
- int count = COUNT;
-
- while (argc > 1)
- {
- if (argc > 2 && strcmp(argv[1], "-c") == 0)
- {
- count = atoi(argv[2]);
- argc -= 2;
- argv += 2;
- }
-
- else if (strcmp(argv[1], "-v") == 0)
- {
- ++verbose;
- --argc;
- ++argv;
- }
-
- else
- break;
- }
-
- if (count > 0 && argc > 1)
- {
- if (strcmp(argv[1], "ascii") == 0)
- return validation_ascii_to_fp(count, argc-1, argv+1);
- else if (strcmp(argv[1], "checkfp") == 0)
- return validation_checkfp(count, argc-1, argv+1);
- else if (strcmp(argv[1], "muldiv") == 0)
- return validation_muldiv(count, argc-1, argv+1);
- else if (strcmp(argv[1], "gamma") == 0)
- return validation_gamma(argc-1, argv+1);
- }
-
- /* Bad argument: */
- fprintf(stderr,
- "usage: tarith [-v] [-c count] {ascii,muldiv,gamma} [args]\n");
- fprintf(stderr, " arguments: ascii [-a (all results)] [-e error%%]\n");
- fprintf(stderr, " checkfp [-l max-number-chars]\n");
- fprintf(stderr, " muldiv\n");
- fprintf(stderr, " gamma -s (silent) -g (only gamma; no log)\n");
- return 1;
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/timepng.c b/3rdparty/libpng/libpng-1.6.37/contrib/libtests/timepng.c
deleted file mode 100644
index 23d8b17..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/libtests/timepng.c
+++ /dev/null
@@ -1,608 +0,0 @@
-/* timepng.c
- *
- * Copyright (c) 2013,2016 John Cunningham Bowler
- *
- * Last changed in libpng 1.6.22 [May 26, 2016]
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Load an arbitrary number of PNG files (from the command line, or, if there
- * are no arguments on the command line, from stdin) then run a time test by
- * reading each file by row or by image (possibly with transforms in the latter
- * case). The only output is a time as a floating point number of seconds with
- * 9 decimal digits.
- */
-#define _POSIX_C_SOURCE 199309L /* for clock_gettime */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <limits.h>
-
-#include <time.h>
-
-#if defined(HAVE_CONFIG_H) && !defined(PNG_NO_CONFIG_H)
-# include <config.h>
-#endif
-
-/* Define the following to use this test against your installed libpng, rather
- * than the one being built here:
- */
-#ifdef PNG_FREESTANDING_TESTS
-# include <png.h>
-#else
-# include "../../png.h"
-#endif
-
-/* The following is to support direct compilation of this file as C++ */
-#ifdef __cplusplus
-# define voidcast(type, value) static_cast<type>(value)
-#else
-# define voidcast(type, value) (value)
-#endif /* __cplusplus */
-
-/* 'CLOCK_PROCESS_CPUTIME_ID' is one of the clock timers for clock_gettime. It
- * need not be supported even when clock_gettime is available. It returns the
- * 'CPU' time the process has consumed. 'CPU' time is assumed to include time
- * when the CPU is actually blocked by a pending cache fill but not time
- * waiting for page faults. The attempt is to get a measure of the actual time
- * the implementation takes to read a PNG ignoring the potentially very large IO
- * overhead.
- */
-#if defined (CLOCK_PROCESS_CPUTIME_ID) && defined(PNG_STDIO_SUPPORTED) &&\
- defined(PNG_EASY_ACCESS_SUPPORTED) &&\
- (PNG_LIBPNG_VER >= 10700 ? defined(PNG_READ_PNG_SUPPORTED) :\
- defined (PNG_SEQUENTIAL_READ_SUPPORTED) &&\
- defined(PNG_INFO_IMAGE_SUPPORTED))
-
-typedef struct
-{
- FILE *input;
- FILE *output;
-} io_data;
-
-static PNG_CALLBACK(void, read_and_copy,
- (png_structp png_ptr, png_bytep buffer, size_t cb))
-{
- io_data *io = (io_data*)png_get_io_ptr(png_ptr);
-
- if (fread(buffer, cb, 1, io->input) != 1)
- png_error(png_ptr, strerror(errno));
-
- if (fwrite(buffer, cb, 1, io->output) != 1)
- {
- perror("temporary file");
- fprintf(stderr, "temporary file PNG write failed\n");
- exit(1);
- }
-}
-
-static void read_by_row(png_structp png_ptr, png_infop info_ptr,
- FILE *write_ptr, FILE *read_ptr)
-{
- /* These don't get freed on error, this is fine; the program immediately
- * exits.
- */
- png_bytep row = NULL, display = NULL;
- io_data io_copy;
-
- if (write_ptr != NULL)
- {
- /* Set up for a copy to the temporary file: */
- io_copy.input = read_ptr;
- io_copy.output = write_ptr;
- png_set_read_fn(png_ptr, &io_copy, read_and_copy);
- }
-
- png_read_info(png_ptr, info_ptr);
-
- {
- size_t rowbytes = png_get_rowbytes(png_ptr, info_ptr);
-
- row = voidcast(png_bytep,malloc(rowbytes));
- display = voidcast(png_bytep,malloc(rowbytes));
-
- if (row == NULL || display == NULL)
- png_error(png_ptr, "OOM allocating row buffers");
-
- {
- png_uint_32 height = png_get_image_height(png_ptr, info_ptr);
- int passes = png_set_interlace_handling(png_ptr);
- int pass;
-
- png_start_read_image(png_ptr);
-
- for (pass = 0; pass < passes; ++pass)
- {
- png_uint_32 y = height;
-
- /* NOTE: this trashes the row each time; interlace handling won't
- * work, but this avoids memory thrashing for speed testing and is
- * somewhat representative of an application that works row-by-row.
- */
- while (y-- > 0)
- png_read_row(png_ptr, row, display);
- }
- }
- }
-
- /* Make sure to read to the end of the file: */
- png_read_end(png_ptr, info_ptr);
-
- /* Free this up: */
- free(row);
- free(display);
-}
-
-static PNG_CALLBACK(void, no_warnings, (png_structp png_ptr,
- png_const_charp warning))
-{
- (void)png_ptr;
- (void)warning;
-}
-
-static int read_png(FILE *fp, png_int_32 transforms, FILE *write_file)
-{
- png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,0,0,
- no_warnings);
- png_infop info_ptr = NULL;
-
- if (png_ptr == NULL)
- return 0;
-
- if (setjmp(png_jmpbuf(png_ptr)))
- {
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- return 0;
- }
-
-# ifdef PNG_BENIGN_ERRORS_SUPPORTED
- png_set_benign_errors(png_ptr, 1/*allowed*/);
-# endif
- png_init_io(png_ptr, fp);
-
- info_ptr = png_create_info_struct(png_ptr);
-
- if (info_ptr == NULL)
- png_error(png_ptr, "OOM allocating info structure");
-
- if (transforms < 0)
- read_by_row(png_ptr, info_ptr, write_file, fp);
-
- else
- png_read_png(png_ptr, info_ptr, transforms, NULL/*params*/);
-
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- return 1;
-}
-
-static int mytime(struct timespec *t)
-{
- /* Do the timing using clock_gettime and the per-process timer. */
- if (!clock_gettime(CLOCK_PROCESS_CPUTIME_ID, t))
- return 1;
-
- perror("CLOCK_PROCESS_CPUTIME_ID");
- fprintf(stderr, "timepng: could not get the time\n");
- return 0;
-}
-
-static int perform_one_test(FILE *fp, int nfiles, png_int_32 transforms)
-{
- int i;
- struct timespec before, after;
-
- /* Clear out all errors: */
- rewind(fp);
-
- if (mytime(&before))
- {
- for (i=0; i<nfiles; ++i)
- {
- if (read_png(fp, transforms, NULL/*write*/))
- {
- if (ferror(fp))
- {
- perror("temporary file");
- fprintf(stderr, "file %d: error reading PNG data\n", i);
- return 0;
- }
- }
-
- else
- {
- perror("temporary file");
- fprintf(stderr, "file %d: error from libpng\n", i);
- return 0;
- }
- }
- }
-
- else
- return 0;
-
- if (mytime(&after))
- {
- /* Work out the time difference and print it - this is the only output,
- * so flush it immediately.
- */
- unsigned long s = after.tv_sec - before.tv_sec;
- long ns = after.tv_nsec - before.tv_nsec;
-
- if (ns < 0)
- {
- --s;
- ns += 1000000000;
-
- if (ns < 0)
- {
- fprintf(stderr, "timepng: bad clock from kernel\n");
- return 0;
- }
- }
-
- printf("%lu.%.9ld\n", s, ns);
- fflush(stdout);
- if (ferror(stdout))
- {
- fprintf(stderr, "timepng: error writing output\n");
- return 0;
- }
-
- /* Successful return */
- return 1;
- }
-
- else
- return 0;
-}
-
-static int add_one_file(FILE *fp, char *name)
-{
- FILE *ip = fopen(name, "rb");
-
- if (ip != NULL)
- {
- /* Read the file using libpng; this detects errors and also deals with
- * files which contain data beyond the end of the file.
- */
- int ok = 0;
- fpos_t pos;
-
- if (fgetpos(fp, &pos))
- {
- /* Fatal error reading the start: */
- perror("temporary file");
- fprintf(stderr, "temporary file fgetpos error\n");
- exit(1);
- }
-
- if (read_png(ip, -1/*by row*/, fp/*output*/))
- {
- if (ferror(ip))
- {
- perror(name);
- fprintf(stderr, "%s: read error\n", name);
- }
-
- else
- ok = 1; /* read ok */
- }
-
- else
- fprintf(stderr, "%s: file not added\n", name);
-
- (void)fclose(ip);
-
- /* An error in the output is fatal; exit immediately: */
- if (ferror(fp))
- {
- perror("temporary file");
- fprintf(stderr, "temporary file write error\n");
- exit(1);
- }
-
- if (ok)
- return 1;
-
- /* Did not read the file successfully, simply rewind the temporary
- * file. This must happen after the ferror check above to avoid clearing
- * the error.
- */
- if (fsetpos(fp, &pos))
- {
- perror("temporary file");
- fprintf(stderr, "temporary file fsetpos error\n");
- exit(1);
- }
- }
-
- else
- {
- /* file open error: */
- perror(name);
- fprintf(stderr, "%s: open failed\n", name);
- }
-
- return 0; /* file not added */
-}
-
-static void
-usage(FILE *fp)
-{
- if (fp != NULL) fclose(fp);
-
- fprintf(stderr,
-"Usage:\n"
-" timepng --assemble <assembly> {files}\n"
-" Read the files into <assembly>, output the count. Options are ignored.\n"
-" timepng --dissemble <assembly> <count> [options]\n"
-" Time <count> files from <assembly>, additional files may not be given.\n"
-" Otherwise:\n"
-" Read the files into a temporary file and time the decode\n"
-"Transforms:\n"
-" --by-image: read by image with png_read_png\n"
-" --<transform>: implies by-image, use PNG_TRANSFORM_<transform>\n"
-" Otherwise: read by row using png_read_row (to a single row buffer)\n"
- /* ISO C90 string length max 509 */);fprintf(stderr,
-"{files}:\n"
-" PNG files to copy into the assembly and time. Invalid files are skipped\n"
-" with appropriate error messages. If no files are given the list of files\n"
-" is read from stdin with each file name terminated by a newline\n"
-"Output:\n"
-" For --assemble the output is the name of the assembly file followed by the\n"
-" count of the files it contains; the arguments for --dissemble. Otherwise\n"
-" the output is the total decode time in seconds.\n");
-
- exit(99);
-}
-
-int main(int argc, char **argv)
-{
- int ok = 0;
- int err = 0;
- int nfiles = 0;
- int transforms = -1; /* by row */
- const char *assembly = NULL;
- FILE *fp;
-
- if (argc > 2 && strcmp(argv[1], "--assemble") == 0)
- {
- /* Just build the test file, argv[2] is the file name. */
- assembly = argv[2];
- fp = fopen(assembly, "wb");
- if (fp == NULL)
- {
- perror(assembly);
- fprintf(stderr, "timepng --assemble %s: could not open for write\n",
- assembly);
- usage(NULL);
- }
-
- argv += 2;
- argc -= 2;
- }
-
- else if (argc > 3 && strcmp(argv[1], "--dissemble") == 0)
- {
- fp = fopen(argv[2], "rb");
-
- if (fp == NULL)
- {
- perror(argv[2]);
- fprintf(stderr, "timepng --dissemble %s: could not open for read\n",
- argv[2]);
- usage(NULL);
- }
-
- nfiles = atoi(argv[3]);
- if (nfiles <= 0)
- {
- fprintf(stderr,
- "timepng --dissemble <file> <count>: %s is not a count\n",
- argv[3]);
- exit(99);
- }
-#ifdef __COVERITY__
- else
- {
- nfiles &= PNG_UINT_31_MAX;
- }
-#endif
-
- argv += 3;
- argc -= 3;
- }
-
- else /* Else use a temporary file */
- {
-#ifndef __COVERITY__
- fp = tmpfile();
-#else
- /* Experimental. Coverity says tmpfile() is insecure because it
- * generates predictable names.
- *
- * It is possible to satisfy Coverity by using mkstemp(); however,
- * any platform supporting mkstemp() undoubtedly has a secure tmpfile()
- * implementation as well, and doesn't need the fix. Note that
- * the fix won't work on platforms that don't support mkstemp().
- *
- * https://www.securecoding.cert.org/confluence/display/c/
- * FIO21-C.+Do+not+create+temporary+files+in+shared+directories
- * says that most historic implementations of tmpfile() provide
- * only a limited number of possible temporary file names
- * (usually 26) before file names are recycled. That article also
- * provides a secure solution that unfortunately depends upon mkstemp().
- */
- char tmpfile[] = "timepng-XXXXXX";
- int filedes;
- umask(0177);
- filedes = mkstemp(tmpfile);
- if (filedes < 0)
- fp = NULL;
- else
- {
- fp = fdopen(filedes,"w+");
- /* Hide the filename immediately and ensure that the file does
- * not exist after the program ends
- */
- (void) unlink(tmpfile);
- }
-#endif
-
- if (fp == NULL)
- {
- perror("tmpfile");
- fprintf(stderr, "timepng: could not open the temporary file\n");
- exit(1); /* not a user error */
- }
- }
-
- /* Handle the transforms: */
- while (argc > 1 && argv[1][0] == '-' && argv[1][1] == '-')
- {
- const char *opt = *++argv + 2;
-
- --argc;
-
- /* Transforms turn on the by-image processing and maybe set some
- * transforms:
- */
- if (transforms == -1)
- transforms = PNG_TRANSFORM_IDENTITY;
-
- if (strcmp(opt, "by-image") == 0)
- {
- /* handled above */
- }
-
-# define OPT(name) else if (strcmp(opt, #name) == 0)\
- transforms |= PNG_TRANSFORM_ ## name
-
- OPT(STRIP_16);
- OPT(STRIP_ALPHA);
- OPT(PACKING);
- OPT(PACKSWAP);
- OPT(EXPAND);
- OPT(INVERT_MONO);
- OPT(SHIFT);
- OPT(BGR);
- OPT(SWAP_ALPHA);
- OPT(SWAP_ENDIAN);
- OPT(INVERT_ALPHA);
- OPT(STRIP_FILLER);
- OPT(STRIP_FILLER_BEFORE);
- OPT(STRIP_FILLER_AFTER);
- OPT(GRAY_TO_RGB);
- OPT(EXPAND_16);
- OPT(SCALE_16);
-
- else
- {
- fprintf(stderr, "timepng %s: unrecognized transform\n", opt);
- usage(fp);
- }
- }
-
- /* Handle the files: */
- if (argc > 1 && nfiles > 0)
- usage(fp); /* Additional files not valid with --dissemble */
-
- else if (argc > 1)
- {
- int i;
-
- for (i=1; i<argc; ++i)
- {
- if (nfiles == INT_MAX)
- {
- fprintf(stderr, "%s: skipped, too many files\n", argv[i]);
- break;
- }
-
- else if (add_one_file(fp, argv[i]))
- ++nfiles;
- }
- }
-
- else if (nfiles == 0) /* Read from stdin withoout --dissemble */
- {
- char filename[FILENAME_MAX+1];
-
- while (fgets(filename, FILENAME_MAX+1, stdin))
- {
- size_t len = strlen(filename);
-
- if (filename[len-1] == '\n')
- {
- filename[len-1] = 0;
- if (nfiles == INT_MAX)
- {
- fprintf(stderr, "%s: skipped, too many files\n", filename);
- break;
- }
-
- else if (add_one_file(fp, filename))
- ++nfiles;
- }
-
- else
- {
- fprintf(stderr, "timepng: file name too long: ...%s\n",
- filename+len-32);
- err = 1;
- break;
- }
- }
-
- if (ferror(stdin))
- {
- fprintf(stderr, "timepng: stdin: read error\n");
- err = 1;
- }
- }
-
- /* Perform the test, or produce the --assemble output: */
- if (!err)
- {
- if (nfiles > 0)
- {
- if (assembly != NULL)
- {
- if (fflush(fp) && !ferror(fp) && fclose(fp))
- {
- perror(assembly);
- fprintf(stderr, "%s: close failed\n", assembly);
- }
-
- else
- {
- printf("%s %d\n", assembly, nfiles);
- fflush(stdout);
- ok = !ferror(stdout);
- }
- }
-
- else
- {
- ok = perform_one_test(fp, nfiles, transforms);
- (void)fclose(fp);
- }
- }
-
- else
- usage(fp);
- }
-
- else
- (void)fclose(fp);
-
- /* Exit code 0 on success. */
- return ok == 0;
-}
-#else /* !sufficient support */
-int main(void) { return 77; }
-#endif /* !sufficient support */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/mips-msa/README b/3rdparty/libpng/libpng-1.6.37/contrib/mips-msa/README
deleted file mode 100644
index 10acc93..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/mips-msa/README
+++ /dev/null
@@ -1,83 +0,0 @@
-OPERATING SYSTEM SPECIFIC MIPS MSA DETECTION
---------------------------------------------
-
-Detection of the ability to execute MIPS MSA on an MIPS processor requires
-operating system support. (The information is not available in user mode.)
-
-HOW TO USE THIS
----------------
-
-This directory contains C code fragments that can be included in mips/mips_init.c
-by setting the macro PNG_MIPS_MSA_FILE to the file name in "" or <> at build
-time. This setting is not recorded in pnglibconf.h and can be changed simply by
-rebuilding mips/msa_init.o with the required macro definition.
-
-For any of this code to be used the MIPS MSA code must be enabled and run time
-checks must be supported. I.e.:
-
-#if PNG_MIPS_MSA_OPT > 0
-#ifdef PNG_MIPS_MSA_CHECK_SUPPORTED
-
-This is done in a 'configure' build by passing configure the argument:
-
- --enable-mips-msa=check
-
-Apart from the basic Linux implementation in contrib/mips-msa/linux.c this code
-is unsupported. That means that it is not even compiled on a regular basis and
-may be broken in any given minor release.
-
-FILE FORMAT
------------
-
-Each file documents its testing status as of the last time it was tested (which
-may have been a long time ago):
-
-STATUS: one of:
- SUPPORTED: This indicates that the file is included in the regularly
- performed test builds and bugs are fixed when discovered.
- COMPILED: This indicates that the code did compile at least once. See the
- more detailed description for the extent to which the result was
- successful.
- TESTED: This means the code was fully compiled into the libpng test programs
- and these were run at least once.
-
-BUG REPORTS: an email address to which to send reports of problems
-
-The file is a fragment of C code. It should not define any 'extern' symbols;
-everything should be static. It must define the function:
-
-static int png_have_msa(png_structp png_ptr);
-
-That function must return 1 if MIPS MSA instructions are supported, 0 if not.
-It must not execute png_error unless it detects a bug. A png_error will prevent
-the reading of the PNG and in the future, writing too.
-
-BUG REPORTS
------------
-
-If you mail a bug report for any file that is not SUPPORTED there may only be
-limited response. Consider fixing it and sending a patch to fix the problem -
-this is more likely to result in action.
-
-CONTRIBUTIONS
--------------
-
-You may send contributions of new implementations to
-png-mng-implement@sourceforge.net. Please write code in strict C90 C where
-possible. Obviously OS dependencies are to be expected. If you submit code you
-must have the authors permission and it must have a license that is acceptable
-to the current maintainer; in particular that license must permit modification
-and redistribution.
-
-Please try to make the contribution a single file and give the file a clear and
-unambiguous name that identifies the target OS. If multiple files really are
-required put them all in a sub-directory.
-
-You must also be prepared to handle bug reports from users of the code, either
-by joining the png-mng-implement mailing list or by providing an email for the
-"BUG REPORTS" entry or both. Please make sure that the header of the file
-contains the STATUS and BUG REPORTS fields as above.
-
-Please list the OS requirements as precisely as possible. Ideally you should
-also list the environment in which the code has been tested and certainly list
-any environments where you suspect it might not work.
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/mips-msa/linux.c b/3rdparty/libpng/libpng-1.6.37/contrib/mips-msa/linux.c
deleted file mode 100644
index 140215c..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/mips-msa/linux.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/* contrib/mips-msa/linux.c
- *
- * Copyright (c) 2016 Glenn Randers-Pehrson
- * Written by Mandar Sahastrabuddhe, 2016.
- * Last changed in libpng 1.6.25beta03 [August 29, 2016]
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * SEE contrib/mips-msa/README before reporting bugs
- *
- * STATUS: SUPPORTED
- * BUG REPORTS: png-mng-implement@sourceforge.net
- *
- * png_have_msa implemented for Linux by reading the widely available
- * pseudo-file /proc/cpuinfo.
- *
- * This code is strict ANSI-C and is probably moderately portable; it does
- * however use <stdio.h> and it assumes that /proc/cpuinfo is never localized.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-static int
-png_have_msa(png_structp png_ptr)
-{
- FILE *f = fopen("/proc/cpuinfo", "rb");
-
- char *string = "msa";
- char word[10];
-
- if (f != NULL)
- {
- while(!feof(f))
- {
- int ch = fgetc(f);
- static int i = 0;
-
- while(!(ch <= 32))
- {
- word[i++] = ch;
- ch = fgetc(f);
- }
-
- int val = strcmp(string, word);
-
- if (val == 0)
- return 1;
-
- i = 0;
- memset(word, 0, 10);
- }
-
- fclose(f);
- }
-#ifdef PNG_WARNINGS_SUPPORTED
- else
- png_warning(png_ptr, "/proc/cpuinfo open failed");
-#endif
- return 0;
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/Dockerfile b/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/Dockerfile
deleted file mode 100644
index f5bc1a9..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/Dockerfile
+++ /dev/null
@@ -1,25 +0,0 @@
-# Copyright 2016 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-################################################################################
-
-FROM gcr.io/oss-fuzz-base/base-builder
-MAINTAINER glennrp@gmail.com
-RUN apt-get update && \
- apt-get install -y make autoconf automake libtool
-
-RUN git clone --depth 1 https://github.com/madler/zlib.git
-RUN git clone --depth 1 https://github.com/glennrp/libpng.git
-RUN cp libpng/contrib/oss-fuzz/build.sh $SRC
-WORKDIR libpng
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/README.txt b/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/README.txt
deleted file mode 100644
index 3b3656f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/README.txt
+++ /dev/null
@@ -1,37 +0,0 @@
-Last changed in libpng 1.6.33 [September 28, 2017]
-Copyright (c) 2017 Glenn Randers-Pehrson
-
-This code is released under the libpng license.
-For conditions of distribution and use, see the disclaimer
-and license in png.h
-
-Files in this directory are used by the oss-fuzz project
-(https://github.com/google/oss-fuzz/tree/master/projects/libpng).
-for "fuzzing" libpng.
-
-They were licensed by Google Inc, using the BSD-like Chromium license,
-which may be found at https://cs.chromium.org/chromium/src/LICENSE, or, if
-noted in the source, under the Apache-2.0 license, which may
-be found at http://www.apache.org/licenses/LICENSE-2.0 .
-If they have been modified, the derivatives are copyright Glenn Randers-Pehrson
-and are released under the same licenses as the originals. Several of
-the original files (libpng_read_fuzzer.options, png.dict, project.yaml)
-had no licensing information; we assumed that these were under the Chromium
-license. Any new files are released under the libpng license (see png.h).
-
-The files are
- Original
- Filename or derived Copyright License
- ========================= ========== ================ ==========
- Dockerfile* derived 2017, Glenn R-P Apache 2.0
- build.sh derived 2017, Glenn R-P Apache 2.0
- libpng_read_fuzzer.cc derived 2017, Glenn R-P Chromium
- libpng_read_fuzzer.options original 2015, Chrome Devs Chromium
- png.dict original 2015, Chrome Devs Chromium
- README.txt (this file) original 2017, Glenn R-P libpng
-
- * Dockerfile is a copy of the file used by oss-fuzz. build.sh,
- png.dict and libpng_read_fuzzer.* are the actual files used by oss-fuzz,
- which retrieves them from the libpng repository at Github.
-
-To do: exercise the progressive reader and the png encoder.
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/build.sh b/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/build.sh
deleted file mode 100755
index f9e1b07..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/build.sh
+++ /dev/null
@@ -1,51 +0,0 @@
-#!/bin/bash -eu
-# Copyright 2017-2018 Glenn Randers-Pehrson
-# Copyright 2016 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-# Last changed in libpng 1.6.35 [July 15, 2018]
-#
-# Revisions by Glenn Randers-Pehrson, 2017:
-# 1. Build only the library, not the tools (changed "make -j$(nproc) all" to
-# "make -j$(nproc) libpng16.la").
-# 2. Disabled WARNING and WRITE options in pnglibconf.dfa.
-# 3. Build zlib alongside libpng
-################################################################################
-
-# Disable logging via library build configuration control.
-cat scripts/pnglibconf.dfa | \
- sed -e "s/option STDIO/option STDIO disabled/" \
- -e "s/option WARNING /option WARNING disabled/" \
- -e "s/option WRITE enables WRITE_INT_FUNCTIONS/option WRITE disabled/" \
-> scripts/pnglibconf.dfa.temp
-mv scripts/pnglibconf.dfa.temp scripts/pnglibconf.dfa
-
-# build the libpng library.
-autoreconf -f -i
-./configure --with-libpng-prefix=OSS_FUZZ_
-make -j$(nproc) clean
-make -j$(nproc) libpng16.la
-
-# build libpng_read_fuzzer.
-$CXX $CXXFLAGS -std=c++11 -I. \
- $SRC/libpng/contrib/oss-fuzz/libpng_read_fuzzer.cc \
- -o $OUT/libpng_read_fuzzer \
- -lFuzzingEngine .libs/libpng16.a -lz
-
-# add seed corpus.
-find $SRC/libpng -name "*.png" | grep -v crashers | \
- xargs zip $OUT/libpng_read_fuzzer_seed_corpus.zip
-
-cp $SRC/libpng/contrib/oss-fuzz/*.dict \
- $SRC/libpng/contrib/oss-fuzz/*.options $OUT/
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/libpng_read_fuzzer.cc b/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/libpng_read_fuzzer.cc
deleted file mode 100644
index 7b30550..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/libpng_read_fuzzer.cc
+++ /dev/null
@@ -1,190 +0,0 @@
-
-// libpng_read_fuzzer.cc
-// Copyright 2017-2018 Glenn Randers-Pehrson
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that may
-// be found in the LICENSE file https://cs.chromium.org/chromium/src/LICENSE
-
-// Last changed in libpng 1.6.35 [July 15, 2018]
-
-// The modifications in 2017 by Glenn Randers-Pehrson include
-// 1. addition of a PNG_CLEANUP macro,
-// 2. setting the option to ignore ADLER32 checksums,
-// 3. adding "#include <string.h>" which is needed on some platforms
-// to provide memcpy().
-// 4. adding read_end_info() and creating an end_info structure.
-// 5. adding calls to png_set_*() transforms commonly used by browsers.
-
-#include <stddef.h>
-#include <stdint.h>
-#include <string.h>
-
-#include <vector>
-
-#define PNG_INTERNAL
-#include "png.h"
-
-#define PNG_CLEANUP \
- if(png_handler.png_ptr) \
- { \
- if (png_handler.row_ptr) \
- png_free(png_handler.png_ptr, png_handler.row_ptr); \
- if (png_handler.end_info_ptr) \
- png_destroy_read_struct(&png_handler.png_ptr, &png_handler.info_ptr,\
- &png_handler.end_info_ptr); \
- else if (png_handler.info_ptr) \
- png_destroy_read_struct(&png_handler.png_ptr, &png_handler.info_ptr,\
- nullptr); \
- else \
- png_destroy_read_struct(&png_handler.png_ptr, nullptr, nullptr); \
- png_handler.png_ptr = nullptr; \
- png_handler.row_ptr = nullptr; \
- png_handler.info_ptr = nullptr; \
- png_handler.end_info_ptr = nullptr; \
- }
-
-struct BufState {
- const uint8_t* data;
- size_t bytes_left;
-};
-
-struct PngObjectHandler {
- png_infop info_ptr = nullptr;
- png_structp png_ptr = nullptr;
- png_infop end_info_ptr = nullptr;
- png_voidp row_ptr = nullptr;
- BufState* buf_state = nullptr;
-
- ~PngObjectHandler() {
- if (row_ptr)
- png_free(png_ptr, row_ptr);
- if (end_info_ptr)
- png_destroy_read_struct(&png_ptr, &info_ptr, &end_info_ptr);
- else if (info_ptr)
- png_destroy_read_struct(&png_ptr, &info_ptr, nullptr);
- else
- png_destroy_read_struct(&png_ptr, nullptr, nullptr);
- delete buf_state;
- }
-};
-
-void user_read_data(png_structp png_ptr, png_bytep data, size_t length) {
- BufState* buf_state = static_cast<BufState*>(png_get_io_ptr(png_ptr));
- if (length > buf_state->bytes_left) {
- png_error(png_ptr, "read error");
- }
- memcpy(data, buf_state->data, length);
- buf_state->bytes_left -= length;
- buf_state->data += length;
-}
-
-static const int kPngHeaderSize = 8;
-
-// Entry point for LibFuzzer.
-// Roughly follows the libpng book example:
-// http://www.libpng.org/pub/png/book/chapter13.html
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
- if (size < kPngHeaderSize) {
- return 0;
- }
-
- std::vector<unsigned char> v(data, data + size);
- if (png_sig_cmp(v.data(), 0, kPngHeaderSize)) {
- // not a PNG.
- return 0;
- }
-
- PngObjectHandler png_handler;
- png_handler.png_ptr = nullptr;
- png_handler.row_ptr = nullptr;
- png_handler.info_ptr = nullptr;
- png_handler.end_info_ptr = nullptr;
-
- png_handler.png_ptr = png_create_read_struct
- (PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr);
- if (!png_handler.png_ptr) {
- return 0;
- }
-
- png_handler.info_ptr = png_create_info_struct(png_handler.png_ptr);
- if (!png_handler.info_ptr) {
- PNG_CLEANUP
- return 0;
- }
-
- png_handler.end_info_ptr = png_create_info_struct(png_handler.png_ptr);
- if (!png_handler.end_info_ptr) {
- PNG_CLEANUP
- return 0;
- }
-
- png_set_crc_action(png_handler.png_ptr, PNG_CRC_QUIET_USE, PNG_CRC_QUIET_USE);
-#ifdef PNG_IGNORE_ADLER32
- png_set_option(png_handler.png_ptr, PNG_IGNORE_ADLER32, PNG_OPTION_ON);
-#endif
-
- // Setting up reading from buffer.
- png_handler.buf_state = new BufState();
- png_handler.buf_state->data = data + kPngHeaderSize;
- png_handler.buf_state->bytes_left = size - kPngHeaderSize;
- png_set_read_fn(png_handler.png_ptr, png_handler.buf_state, user_read_data);
- png_set_sig_bytes(png_handler.png_ptr, kPngHeaderSize);
-
- if (setjmp(png_jmpbuf(png_handler.png_ptr))) {
- PNG_CLEANUP
- return 0;
- }
-
- // Reading.
- png_read_info(png_handler.png_ptr, png_handler.info_ptr);
-
- // reset error handler to put png_deleter into scope.
- if (setjmp(png_jmpbuf(png_handler.png_ptr))) {
- PNG_CLEANUP
- return 0;
- }
-
- png_uint_32 width, height;
- int bit_depth, color_type, interlace_type, compression_type;
- int filter_type;
-
- if (!png_get_IHDR(png_handler.png_ptr, png_handler.info_ptr, &width,
- &height, &bit_depth, &color_type, &interlace_type,
- &compression_type, &filter_type)) {
- PNG_CLEANUP
- return 0;
- }
-
- // This is going to be too slow.
- if (width && height > 100000000 / width) {
- PNG_CLEANUP
- return 0;
- }
-
- // Set several transforms that browsers typically use:
- png_set_gray_to_rgb(png_handler.png_ptr);
- png_set_expand(png_handler.png_ptr);
- png_set_packing(png_handler.png_ptr);
- png_set_scale_16(png_handler.png_ptr);
- png_set_tRNS_to_alpha(png_handler.png_ptr);
-
- int passes = png_set_interlace_handling(png_handler.png_ptr);
-
- png_read_update_info(png_handler.png_ptr, png_handler.info_ptr);
-
- png_handler.row_ptr = png_malloc(
- png_handler.png_ptr, png_get_rowbytes(png_handler.png_ptr,
- png_handler.info_ptr));
-
- for (int pass = 0; pass < passes; ++pass) {
- for (png_uint_32 y = 0; y < height; ++y) {
- png_read_row(png_handler.png_ptr,
- static_cast<png_bytep>(png_handler.row_ptr), nullptr);
- }
- }
-
- png_read_end(png_handler.png_ptr, png_handler.end_info_ptr);
-
- PNG_CLEANUP
- return 0;
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/libpng_read_fuzzer.options b/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/libpng_read_fuzzer.options
deleted file mode 100644
index 2005291..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/libpng_read_fuzzer.options
+++ /dev/null
@@ -1,2 +0,0 @@
-[libfuzzer]
-dict = png.dict
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/png.dict b/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/png.dict
deleted file mode 100644
index 3a8a113..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/oss-fuzz/png.dict
+++ /dev/null
@@ -1,39 +0,0 @@
-#
-# AFL dictionary for PNG images
-# -----------------------------
-#
-# Just the basic, standard-originating sections; does not include vendor
-# extensions.
-#
-# Created by Michal Zalewski <lcamtuf@google.com>
-#
-
-header_png="\x89PNG\x0d\x0a\x1a\x0a"
-
-section_IDAT="IDAT"
-section_IEND="IEND"
-section_IHDR="IHDR"
-section_PLTE="PLTE"
-section_bKGD="bKGD"
-section_cHRM="cHRM"
-section_eXIf="eXIf"
-section_fRAc="fRAc"
-section_gAMA="gAMA"
-section_gIFg="gIFg"
-section_gIFt="gIFt"
-section_gIFx="gIFx"
-section_hIST="hIST"
-section_iCCP="iCCP"
-section_iTXt="iTXt"
-section_oFFs="oFFs"
-section_pCAL="pCAL"
-section_pHYs="pHYs"
-section_sBIT="sBIT"
-section_sCAL="sCAL"
-section_sPLT="sPLT"
-section_sRGB="sRGB"
-section_sTER="sTER"
-section_tEXt="tEXt"
-section_tIME="tIME"
-section_tRNS="tRNS"
-section_zTXt="zTXt"
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/README b/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/README
deleted file mode 100644
index e17fe35..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/README
+++ /dev/null
@@ -1,5 +0,0 @@
-
-This demonstrates the use of PNG_USER_CONFIG, pngusr.h and pngusr.dfa
-to build minimal decoder, encoder, and progressive reader applications.
-
-See the individual README and pngusr.dfa files for more explanation.
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/decoder/README b/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/decoder/README
deleted file mode 100644
index fa979fc..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/decoder/README
+++ /dev/null
@@ -1,10 +0,0 @@
-This demonstrates the use of PNG_USER_CONFIG, pngusr.h and pngusr.dfa
-
-The makefile builds a minimal read-only decoder with embedded libpng
-and zlib.
-
-Specify the location of the zlib source (1.2.1 or later) as ZLIBSRC
-on the make command line.
-
-If you prefer to use the shared libraries, go to contrib/pngminus
-and build the png2pnm application there.
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/decoder/makefile b/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/decoder/makefile
deleted file mode 100644
index 4acf3c1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/decoder/makefile
+++ /dev/null
@@ -1,151 +0,0 @@
-# Makefile for PngMinus (pngm2pnm)
-# Linux / Unix
-
-#CC=cc
-CC=gcc
-LD=$(CC)
-
-# If awk fails try
-# make AWK=nawk
-
-# If cpp fails try
-# make CPP=/lib/cpp
-
-RM=rm -f
-COPY=cp
-
-CPPFLAGS=-I. -DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP
-CFLAGS=-O1 -Wall
-
-C=.c
-O=.o
-L=.a
-E=
-
-# Where to find the source code:
-PNGSRC =../../..
-ZLIBSRC=$(PNGSRC)/../zlib
-PROGSRC=$(PNGSRC)/contrib/pngminus
-
-# Zlib (minimal inflate requirements - crc32 is used by libpng)
-# zutil can be eliminated if you provide your own zcalloc and zcfree
-ZSRCS = adler32$(C) crc32$(C) \
- inffast$(C) inflate$(C) inftrees$(C) \
- zutil$(C)
-
-# Standard headers
-ZH = zlib.h crc32.h inffast.h inffixed.h \
- inflate.h inftrees.h zutil.h
-
-# Machine generated headers
-ZCONF = zconf.h
-
-# Headers callers use
-ZINC = zlib.h $(ZCONF)
-
-# Headers the Zlib source uses
-ZHDRS = $(ZH) $(ZCONF)
-
-ZOBJS = adler32$(O) crc32$(O) \
- inffast$(O) inflate$(O) inftrees$(O) \
- zutil$(O)
-
-# libpng
-PNGSRCS=png$(C) pngerror$(C) pngget$(C) pngmem$(C) \
- pngread$(C) pngrio$(C) pngrtran$(C) pngrutil$(C) \
- pngset$(C) pngtrans$(C)
-
-# Standard headers
-PNGH =png.h pngconf.h pngdebug.h pnginfo.h pngpriv.h pngstruct.h
-
-# Machine generated headers
-PNGCONF=pnglibconf.h
-
-# Headers callers use
-PNGINC= png.h pngconf.h pngusr.h $(PNGCONF)
-
-# Headers the PNG library uses
-PNGHDRS=$(PNGH) $(PNGCONF) pngusr.h
-
-PNGOBJS=png$(O) pngerror$(O) pngget$(O) pngmem$(O) \
- pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) \
- pngset$(O) pngtrans$(O)
-
-PROGSRCS= pngm2pnm$(C)
-PROGHDRS=
-PROGDOCS=
-PROGOBJS= pngm2pnm$(O)
-
-OBJS = $(PROGOBJS) $(PNGOBJS) $(ZOBJS)
-
-# implicit make rules -------------------------------------------------------
-
-# note: dependencies do not work on implicit rule lines
-.c$(O):
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
-
-# dependencies
-
-all: pngm2pnm$(E)
-
-pngm2pnm$(E): $(OBJS)
- $(LD) -o pngm2pnm$(E) $(OBJS)
-
-# The DFA_XTRA setting turns all libpng options off then
-# turns on those required for this minimal build.
-# The CPP_FLAGS setting causes pngusr.h to be included in
-# both the build of pnglibconf.h and, subsequently, when
-# building libpng itself.
-$(PNGCONF): $(PNGSRC)/scripts/pnglibconf.mak $(ZH)\
- $(PNGSRC)/scripts/pnglibconf.dfa \
- $(PNGSRC)/scripts/options.awk pngusr.h pngusr.dfa
- $(RM) pnglibconf.h pnglibconf.dfn
- $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\
- srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG -I."\
- DFA_XTRA="pngusr.dfa" $@
-
-clean:
- $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\
- srcdir=$(PNGSRC) clean
- $(RM) pngm2pnm$(O)
- $(RM) pngm2pnm$(E)
- $(RM) $(OBJS)
-
-# distclean also removes the copied source and headers
-distclean: clean
- $(RM) -r scripts # historical reasons
- $(RM) $(PNGSRCS) $(PNGH)
- $(RM) $(ZSRCS) $(ZH) $(ZCONF)
- $(RM) $(PROGSRCS) $(PROGHDRS) $(PROGDOCS)
-
-# Header file dependencies:
-$(PROGOBJS): $(PROGHDRS) $(PNGINC) $(ZINC)
-$(PNGOBJS): $(PNGHDRS) $(ZINC)
-$(ZOBJS): $(ZHDRS)
-
-# Gather the source code from the respective directories
-$(PNGSRCS) $(PNGH): $(PNGSRC)/$@
- $(RM) $@
- $(COPY) $(PNGSRC)/$@ $@
-
-# No dependency on the ZLIBSRC target so that it only needs
-# to be specified once.
-$(ZSRCS) $(ZH):
- $(RM) $@
- $(COPY) $(ZLIBSRC)/$@ $@
-
-# The unconfigured zconf.h varies in name according to the
-# zlib release
-$(ZCONF):
- $(RM) $@
- @for f in zconf.h.in zconf.in.h zconf.h; do\
- test -r $(ZLIBSRC)/$$f &&\
- echo $(COPY) $(ZLIBSRC)/$$f $@ &&\
- $(COPY) $(ZLIBSRC)/$$f $@ && exit 0;\
- done; echo copy: $(ZLIBSRC)/zconf.h not found; exit 1
-
-pngm2pnm.c: $(PROGSRC)/png2pnm.c
- $(RM) $@
- $(COPY) $(PROGSRC)/png2pnm.c $@
-
-# End of makefile for pngm2pnm
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/decoder/pngusr.dfa b/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/decoder/pngusr.dfa
deleted file mode 100644
index 4f40272..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/decoder/pngusr.dfa
+++ /dev/null
@@ -1,40 +0,0 @@
-# pngminim/decoder/pngusr.dfa
-#
-# Copyright (c) 2010-2013 Glenn Randers-Pehrson
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# First all the build options off:
-
-everything = off
-
-# All that is required is some read code. This example switches
-# on the sequential read code (see ../preader for a progressive
-# read example).
-
-option SEQUENTIAL_READ on
-
-# You must choose fixed or floating point arithmetic:
-# option FLOATING_POINT on
-
-option FIXED_POINT on
-
-# You must chose the internal fixed point implementation or to
-# use the system floating point. The latter is considerably
-# smaller (by about 1kbyte on an x86 system):
-# option FLOATING_ARITHMETIC on
-
-option FLOATING_ARITHMETIC off
-
-# Your program will probably need other options. The example
-# program here, pngm2pnm, requires the following. Take a look
-# at pnglibconf.h to find out the full set of what has to be
-# enabled to make the following work.
-
-option SETJMP on
-option STDIO on
-option READ_EXPAND on
-option READ_STRIP_16_TO_8 on
-option USER_LIMITS on
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/decoder/pngusr.h b/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/decoder/pngusr.h
deleted file mode 100644
index cbd7890..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/decoder/pngusr.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* minrdpngconf.h: headers to make a minimal png-read-only library
- *
- * Copyright (c) 2007, 2010-2013 Glenn Randers-Pehrson
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Derived from pngcrush.h, Copyright 1998-2007, Glenn Randers-Pehrson
- */
-
-#ifndef MINRDPNGCONF_H
-#define MINRDPNGCONF_H
-
-/* To include pngusr.h set -DPNG_USER_CONFIG in CPPFLAGS */
-
-/* List options to turn off features of the build that do not
- * affect the API (so are not recorded in pnglibconf.h)
- */
-
-#define PNG_ALIGN_TYPE PNG_ALIGN_NONE
-
-#endif /* MINRDPNGCONF_H */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/encoder/README b/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/encoder/README
deleted file mode 100644
index d8d9a64..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/encoder/README
+++ /dev/null
@@ -1,10 +0,0 @@
-This demonstrates the use of PNG_USER_CONFIG and pngusr.h
-
-The makefile builds a minimal write-only encoder with embedded libpng
-and zlib.
-
-Specify the location of the zlib source (1.2.1 or later) as ZLIBSRC
-on the make command line.
-
-If you prefer to use the shared libraries, go to contrib/pngminus
-and build the pnm2png application there.
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/encoder/makefile b/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/encoder/makefile
deleted file mode 100644
index 41b205c..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/encoder/makefile
+++ /dev/null
@@ -1,150 +0,0 @@
-# Makefile for PngMinus (pnm2pngm)
-# Linux / Unix
-
-#CC=cc
-CC=gcc
-LD=$(CC)
-
-# If awk fails try
-# make AWK=nawk
-
-# If cpp fails try
-# make CPP=/lib/cpp
-
-RM=rm -f
-COPY=cp
-
-CPPFLAGS=-I. -DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP
-CFLAGS=-O1 -Wall
-
-C=.c
-O=.o
-L=.a
-E=
-
-# Where to find the source code:
-PNGSRC =../../..
-ZLIBSRC=$(PNGSRC)/../zlib
-PROGSRC=$(PNGSRC)/contrib/pngminus
-
-# Zlib
-ZSRCS = adler32$(C) compress$(C) crc32$(C) deflate$(C) \
- trees$(C) zutil$(C)
-
-# Standard headers
-#ZH = zlib.h crc32.h deflate.h trees.h zutil.h
-ZH = zlib.h crc32.h deflate.h trees.h zutil.h
-
-# Machine generated headers
-ZCONF = zconf.h
-
-# Headers callers use
-ZINC = zlib.h $(ZCONF)
-
-# Headers the Zlib source uses
-ZHDRS = $(ZH) $(ZCONF)
-
-# compress is not required; it is needed to link the zlib
-# code because deflate defines an unused API function deflateBound
-# which itself calls compressBound from compress.
-ZOBJS = adler32$(O) compress$(O) crc32$(O) deflate$(O) \
- trees$(O) zutil$(O)
-
-# libpng
-PNGSRCS=png$(C) pngerror$(C) pngget$(C) pngmem$(C) \
- pngset$(C) pngtrans$(C) pngwio$(C) pngwrite$(C) \
- pngwtran$(C) pngwutil$(C)
-
-# Standard headers
-PNGH =png.h pngconf.h pngdebug.h pnginfo.h pngpriv.h pngstruct.h
-
-# Machine generated headers
-PNGCONF=pnglibconf.h
-
-# Headers callers use
-PNGINC= png.h pngconf.h pngusr.h $(PNGCONF)
-
-# Headers the PNG library uses
-PNGHDRS=$(PNGH) $(PNGCONF) pngusr.h
-
-PNGOBJS=png$(O) pngerror$(O) pngget$(O) pngmem$(O) \
- pngset$(O) pngtrans$(O) pngwio$(O) pngwrite$(O) \
- pngwtran$(O) pngwutil$(O)
-
-PROGSRCS= pnm2pngm$(C)
-PROGHDRS=
-PROGDOCS=
-PROGOBJS= pnm2pngm$(O)
-
-OBJS = $(PROGOBJS) $(PNGOBJS) $(ZOBJS)
-
-# implicit make rules -------------------------------------------------------
-
-.c$(O):
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
-
-# dependencies
-
-all: pnm2pngm$(E)
-
-pnm2pngm$(E): $(OBJS)
- $(LD) -o pnm2pngm$(E) $(OBJS)
-
-# The DFA_XTRA setting turns all libpng options off then
-# turns on those required for this minimal build.
-# The CPP_FLAGS setting causes pngusr.h to be included in
-# both the build of pnglibconf.h and, subsequently, when
-# building libpng itself.
-$(PNGCONF): $(PNGSRC)/scripts/pnglibconf.mak $(ZH)\
- $(PNGSRC)/scripts/pnglibconf.dfa \
- $(PNGSRC)/scripts/options.awk pngusr.h pngusr.dfa
- $(RM) pnglibconf.h pnglibconf.dfn
- $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\
- srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG -I."\
- DFA_XTRA="pngusr.dfa" $@
-
-clean:
- $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\
- srcdir=$(PNGSRC) clean
- $(RM) pnm2pngm$(O)
- $(RM) pnm2pngm$(E)
- $(RM) $(OBJS)
-
-# distclean also removes the copied source and headers
-distclean: clean
- $(RM) -r scripts # historical reasons
- $(RM) $(PNGSRCS) $(PNGH)
- $(RM) $(ZSRCS) $(ZH) $(ZCONF)
- $(RM) $(PROGSRCS) $(PROGHDRS) $(PROGDOCS)
-
-# Header file dependencies:
-$(PROGOBJS): $(PROGHDRS) $(PNGINC) $(ZINC)
-$(PNGOBJS): $(PNGHDRS) $(ZINC)
-$(ZOBJS): $(ZHDRS)
-
-# Gather the source code from the respective directories
-$(PNGSRCS) $(PNGH): $(PNGSRC)/$@
- $(RM) $@
- $(COPY) $(PNGSRC)/$@ $@
-
-# No dependency on the ZLIBSRC target so that it only needs
-# to be specified once.
-$(ZSRCS) $(ZH):
- $(RM) $@
- $(COPY) $(ZLIBSRC)/$@ $@
-
-# The unconfigured zconf.h varies in name according to the
-# zlib release
-$(ZCONF):
- $(RM) $@
- @for f in zconf.h.in zconf.in.h zconf.h; do\
- test -r $(ZLIBSRC)/$$f &&\
- echo $(COPY) $(ZLIBSRC)/$$f $@ &&\
- $(COPY) $(ZLIBSRC)/$$f $@ && exit 0;\
- done; echo copy: $(ZLIBSRC)/zconf.h not found; exit 1
-
-pnm2pngm.c: $(PROGSRC)/pnm2png.c
- $(RM) $@
- $(COPY) $(PROGSRC)/pnm2png.c $@
-
-# End of makefile for pnm2pngm
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/encoder/pngusr.dfa b/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/encoder/pngusr.dfa
deleted file mode 100644
index 1fc24f3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/encoder/pngusr.dfa
+++ /dev/null
@@ -1,39 +0,0 @@
-# pngminim/encoder/pngusr.dfa
-#
-# Copyright (c) 2010-2013 Glenn Randers-Pehrson
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# First all the build options off:
-
-everything = off
-
-# Switch on the write code - this makes a minimalist encoder
-
-option WRITE on
-
-# These 2 options are required if you need to read PBM (P1 or P4) files.
-option WRITE_INVERT on
-option WRITE_PACK on
-
-# You must choose fixed or floating point arithmetic:
-# option FLOATING_POINT on
-
-option FIXED_POINT on
-
-# You must chose the internal fixed point implementation or to
-# use the system floating point. The latter is considerably
-# smaller (by about 1kbyte on an x86 system):
-# option FLOATING_ARITHMETIC on
-
-option FLOATING_ARITHMETIC off
-
-# Your program will probably need other options. The example
-# program here, pnm2pngm, requires the following. Take a look
-# at pnglibconf.h to find out the full set of what has to be
-# enabled to make the following work.
-
-option SETJMP on
-option STDIO on
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/encoder/pngusr.h b/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/encoder/pngusr.h
deleted file mode 100644
index 997d44f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/encoder/pngusr.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* minwrpngconf.h: headers to make a minimal png-write-only library
- *
- * Copyright (c) 2007, 2010-2013 Glenn Randers-Pehrson
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Derived from pngcrush.h, Copyright 1998-2007, Glenn Randers-Pehrson
- */
-
-#ifndef MINWRPNGCONF_H
-#define MINWRPNGCONF_H
-
-/* To include pngusr.h set -DPNG_USER_CONFIG in CPPFLAGS */
-
-/* List options to turn off features of the build that do not
- * affect the API (so are not recorded in pnglibconf.h)
- */
-
-#define PNG_ALIGN_TYPE PNG_ALIGN_NONE
-
-#endif /* MINWRPNGCONF_H */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/preader/README b/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/preader/README
deleted file mode 100644
index faa8356..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/preader/README
+++ /dev/null
@@ -1,15 +0,0 @@
-This demonstrates the use of PNG_USER_CONFIG and pngusr.h
-
-The makefile builds a minimal read-only progressive decoder with
-embedded libpng, zlib and your system's X library.
-
-Specify the location of the zlib source (1.2.1 or later) as ZLIBSRC
-on the make command line.
-
-Edit makefile if required, to find your X library and include files,
-then
-
- make ZLIBSRC=directory
-
-If you prefer to use the shared libraries, go to contrib/gregbook
-and build the rpng2-x application there.
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/preader/makefile b/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/preader/makefile
deleted file mode 100644
index b625199..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/preader/makefile
+++ /dev/null
@@ -1,166 +0,0 @@
-# Makefile for PngMinus (rpng2)
-# Linux / Unix
-
-#CC=cc
-CC=gcc
-LD=$(CC)
-
-# If awk fails try
-# make AWK=nawk
-
-# If cpp fails try
-# make CPP=/lib/cpp
-
-RM=rm -f
-COPY=cp
-
-#XINC = -I/usr/include # old-style, stock X distributions
-#XLIB = -L/usr/lib/X11 -lX11 # (including SGI IRIX)
-
-#XINC = -I/usr/openwin/include # Sun workstations (OpenWindows)
-#XLIB = -L/usr/openwin/lib -lX11
-
-XINC = -I/usr/X11R6/include # new X distributions (X.org, etc.)
-XLIB = -L/usr/X11R6/lib -lX11
-#XLIB = -L/usr/X11R6/lib64 -lX11 # e.g., Red Hat on AMD64
-
-#XINC = -I/usr/local/include # FreeBSD
-#XLIB = -L/usr/local/lib -lX11
-
-#LIBS = $(XLIB)
-LIBS = $(XLIB) -lm #platforms that need libm
-
-CPPFLAGS=-I. $(XINC) -DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP
-CFLAGS=-O1 -Wall
-
-C=.c
-O=.o
-L=.a
-E=
-
-# Where to find the source code:
-PNGSRC =../../..
-ZLIBSRC=$(PNGSRC)/../zlib
-PROGSRC=$(PNGSRC)/contrib/gregbook
-
-# Zlib (minimal inflate requirements - crc32 is used by libpng)
-# zutil can be eliminated if you provide your own zcalloc and zcfree
-ZSRCS = adler32$(C) crc32$(C) \
- inffast$(C) inflate$(C) inftrees$(C) \
- zutil$(C)
-
-# Standard headers
-ZH = zlib.h crc32.h inffast.h inffixed.h \
- inflate.h inftrees.h zutil.h
-
-# Machine generated headers
-ZCONF = zconf.h
-
-# Headers callers use
-ZINC = zlib.h $(ZCONF)
-
-# Headers the Zlib source uses
-ZHDRS = $(ZH) $(ZCONF)
-
-ZOBJS = adler32$(O) crc32$(O) \
- inffast$(O) inflate$(O) inftrees$(O) \
- zutil$(O)
-
-# libpng
-PNGSRCS=png$(C) pngerror$(C) pngget$(C) pngmem$(C) \
- pngpread$(C) pngread$(C) pngrio$(C) pngrtran$(C) pngrutil$(C) \
- pngset$(C) pngtrans$(C)
-
-# Standard headers
-PNGH =png.h pngconf.h pngdebug.h pnginfo.h pngpriv.h pngstruct.h
-
-# Machine generated headers
-PNGCONF=pnglibconf.h
-
-# Headers callers use
-PNGINC= png.h pngconf.h pngusr.h $(PNGCONF)
-
-# Headers the PNG library uses
-PNGHDRS=$(PNGH) $(PNGCONF) pngusr.h
-
-PNGOBJS=png$(O) pngerror$(O) pngget$(O) pngmem$(O) \
- pngpread$(O) pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) \
- pngset$(O) pngtrans$(O)
-
-PROGSRCS= rpng2-x$(C) readpng2$(C)
-PROGHDRS= readpng2.h
-PROGDOCS= COPYING LICENSE
-PROGOBJS= rpng2-x$(O) readpng2$(O)
-
-OBJS = $(PROGOBJS) $(PNGOBJS) $(ZOBJS)
-
-# implicit make rules -------------------------------------------------------
-
-.c$(O):
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
-
-# dependencies
-
-all: $(PROGDOCS) rpng2-x$(E)
-
-rpng2-x$(E): $(OBJS)
- $(LD) -o rpng2-x$(E) $(OBJS) $(LIBS)
-
-# The DFA_XTRA setting turns all libpng options off then
-# turns on those required for this minimal build.
-# The CPP_FLAGS setting causes pngusr.h to be included in
-# both the build of pnglibconf.h and, subsequently, when
-# building libpng itself.
-$(PNGCONF): $(PNGSRC)/scripts/pnglibconf.mak $(ZH)\
- $(PNGSRC)/scripts/pnglibconf.dfa \
- $(PNGSRC)/scripts/options.awk pngusr.h pngusr.dfa
- $(RM) pnglibconf.h pnglibconf.dfn
- $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\
- srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG -I."\
- DFA_XTRA="pngusr.dfa" $@
-
-clean:
- $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\
- srcdir=$(PNGSRC) clean
- $(RM) rpng2-x$(O)
- $(RM) rpng2-x$(E)
- $(RM) $(OBJS)
-
-# distclean also removes the copied source and headers
-distclean: clean
- $(RM) -r scripts # historical reasons
- $(RM) $(PNGSRCS) $(PNGH)
- $(RM) $(ZSRCS) $(ZH) $(ZCONF)
- $(RM) $(PROGSRCS) $(PROGHDRS) $(PROGDOCS)
-
-# Header file dependencies:
-$(PROGOBJS): $(PROGHDRS) $(PNGINC) $(ZINC)
-$(PNGOBJS): $(PNGHDRS) $(ZINC)
-$(ZOBJS): $(ZHDRS)
-
-# Gather the source code from the respective directories
-$(PNGSRCS) $(PNGH): $(PNGSRC)/$@
- $(RM) $@
- $(COPY) $(PNGSRC)/$@ $@
-
-# No dependency on the ZLIBSRC target so that it only needs
-# to be specified once.
-$(ZSRCS) $(ZH):
- $(RM) $@
- $(COPY) $(ZLIBSRC)/$@ $@
-
-# The unconfigured zconf.h varies in name according to the
-# zlib release
-$(ZCONF):
- $(RM) $@
- @for f in zconf.h.in zconf.in.h zconf.h; do\
- test -r $(ZLIBSRC)/$$f &&\
- echo $(COPY) $(ZLIBSRC)/$$f $@ &&\
- $(COPY) $(ZLIBSRC)/$$f $@ && exit 0;\
- done; echo copy: $(ZLIBSRC)/zconf.h not found; exit 1
-
-$(PROGSRCS) $(PROGHDRS) $(PROGDOCS): $(PROGSRC)/$@
- $(RM) $@
- $(COPY) $(PROGSRC)/$@ $@
-
-# End of makefile for rpng2-x
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/preader/pngusr.dfa b/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/preader/pngusr.dfa
deleted file mode 100644
index ac297f4..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/preader/pngusr.dfa
+++ /dev/null
@@ -1,40 +0,0 @@
-# pngminim/preader/pngusr.dfa
-#
-# Copyright (c) 2010-2013 Glenn Randers-Pehrson
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# First all the build options off:
-
-everything = off
-
-# Just switch on the progressive read code
-
-option PROGRESSIVE_READ on
-
-# You may choose fixed or floating point APIs:
-# option FLOATING_POINT on
-
-option FIXED_POINT on
-
-# You must chose the internal fixed point implementation or to
-# use the system floating point. The latter is considerably
-# smaller (by about 1kbyte on an x86 system):
-
-option FLOATING_ARITHMETIC on
-# option FLOATING_ARITHMETIC off
-
-# Your program will probably need other options. The example
-# program here, rpng2-x, requires the following. Take a look
-# at pnglibconf.h to find out the full set of what has to be
-# enabled to make the following work.
-
-option SETJMP on
-option STDIO on
-option READ_bKGD on
-option READ_GAMMA on
-option READ_EXPAND on
-option READ_STRIP_16_TO_8 on
-option READ_GRAY_TO_RGB on
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/preader/pngusr.h b/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/preader/pngusr.h
deleted file mode 100644
index 80db3bb..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminim/preader/pngusr.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* minrdpngconf.h: headers to make a minimal png-read-only library
- *
- * Copyright (c) 2009, 2010-2013 Glenn Randers-Pehrson
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Derived from pngcrush.h, Copyright 1998-2007, Glenn Randers-Pehrson
- */
-
-#ifndef MINPRDPNGCONF_H
-#define MINPRDPNGCONF_H
-
-/* To include pngusr.h set -DPNG_USER_CONFIG in CPPFLAGS */
-
-/* List options to turn off features of the build that do not
- * affect the API (so are not recorded in pnglibconf.h)
- */
-
-#define PNG_ALIGN_TYPE PNG_ALIGN_NONE
-
-#endif /* MINPRDPNGCONF_H */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/CHANGES.txt b/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/CHANGES.txt
deleted file mode 100644
index 4e64e5e..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/CHANGES.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-
-pnm2png / png2pnm --- conversion from PBM/PGM/PPM-file to PNG-file
-copyright (C) 1999-2019 by Willem van Schaik <willem at schaik dot com>
-
-version 1.0 - 1999.10.15 - First version.
- 1.1 - 2015.07.29 - Fixed leaks (Glenn Randers-Pehrson)
- 1.2 - 2017.04.22 - Add buffer-size check
- 1.3 - 2017.08.24 - Fix potential overflow in buffer-size check
- (Glenn Randers-Pehrson)
- 1.4 - 2017.08.28 - Add PNGMINUS_UNUSED (Christian Hesse)
- 1.5 - 2018.08.05 - Fix buffer overflow in tokenizer (Cosmin Truta)
- 1.6 - 2018.08.05 - Improve portability and fix style (Cosmin Truta)
- 1.7 - 2019.01.22 - Change license to MIT (Willem van Schaik)
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/CMakeLists.txt b/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/CMakeLists.txt
deleted file mode 100644
index 1f815a5..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/CMakeLists.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-cmake_minimum_required(VERSION 3.1)
-cmake_policy(VERSION 3.1)
-
-project(PNGMINUS C)
-
-option(PNGMINUS_USE_STATIC_LIBRARIES "Use the static library builds" ON)
-
-# libpng
-add_subdirectory(../.. libpng)
-include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../..)
-include_directories(${CMAKE_CURRENT_BINARY_DIR}/libpng)
-if(PNGMINUS_USE_STATIC_LIBRARIES)
- set(PNGMINUS_PNG_LIBRARY png_static)
-else()
- set(PNGMINUS_PNG_LIBRARY png)
-endif()
-
-# png2pnm
-add_executable(png2pnm png2pnm.c)
-target_link_libraries(png2pnm ${PNGMINUS_PNG_LIBRARY})
-
-# pnm2png
-add_executable(pnm2png pnm2png.c)
-target_link_libraries(pnm2png ${PNGMINUS_PNG_LIBRARY})
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/LICENSE.txt b/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/LICENSE.txt
deleted file mode 100644
index 00878a9..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/LICENSE.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-
-pnm2png / png2pnm --- conversion from PBM/PGM/PPM-file to PNG-file
-
-copyright (C) 1999-2019 by Willem van Schaik <willem at schaik dot com>
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-The software is provided "as is", without warranty of any kind, express or
-implied, including but not limited to the warranties of merchantability,
-fitness for a particular purpose and noninfringement. In no event shall the
-authors or copyight holders be liable for any claim, damages or other
-liability, whether in an action of contract, tort or otherwise, arising from,
-out of or in connection with the software or the use or other dealings in the
-software.
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/Makefile b/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/Makefile
deleted file mode 100644
index 4bba079..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/Makefile
+++ /dev/null
@@ -1,62 +0,0 @@
-# Makefile for PngMinus (png2pnm and pnm2png)
-# Linux / Unix
-
-#CC = cc
-CC = gcc
-LD = $(CC)
-
-RM = rm -f
-
-PNGINC = -I../..
-PNGLIB_SHARED = -L../.. -lpng
-PNGLIB_STATIC = ../../libpng.a
-
-# Uncomment the following if you have a custom zlib build at ../../../zlib
-#ZINC = -I../../../zlib
-#ZLIB_SHARED = -L../../../zlib -lz
-#ZLIB_STATIC = ../../../zlib/libz.a
-
-# Use the system zlib otherwise
-ZLIB_SHARED = -lz
-ZLIB_STATIC = -lz
-
-CPPFLAGS = $(PNGINC) $(ZINC)
-CFLAGS =
-LDFLAGS =
-LIBS_SHARED = $(PNGLIB_SHARED) $(ZLIB_SHARED)
-LIBS_STATIC = $(PNGLIB_STATIC) $(ZLIB_STATIC)
-
-EXEEXT =
-#EXEEXT = .exe
-
-# dependencies
-
-all: png2pnm$(EXEEXT) pnm2png$(EXEEXT) png2pnm-static$(EXEEXT) pnm2png-static$(EXEEXT)
-
-png2pnm.o: png2pnm.c
- $(CC) -c $(CPPFLAGS) $(CFLAGS) png2pnm.c
-
-pnm2png.o: pnm2png.c
- $(CC) -c $(CPPFLAGS) $(CFLAGS) pnm2png.c
-
-png2pnm$(EXEEXT): png2pnm.o
- $(LD) $(LDFLAGS) -o png2pnm$(EXEEXT) png2pnm.o $(LIBS_SHARED) -lm
-
-pnm2png$(EXEEXT): pnm2png.o
- $(LD) $(LDFLAGS) -o pnm2png$(EXEEXT) pnm2png.o $(LIBS_SHARED) -lm
-
-png2pnm-static$(EXEEXT): png2pnm.o
- $(LD) $(LDFLAGS) -o png2pnm-static$(EXEEXT) png2pnm.o $(LIBS_STATIC) -lm
-
-pnm2png-static$(EXEEXT): pnm2png.o
- $(LD) $(LDFLAGS) -o pnm2png-static$(EXEEXT) pnm2png.o $(LIBS_STATIC) -lm
-
-clean:
- $(RM) png2pnm.o
- $(RM) pnm2png.o
- $(RM) png2pnm$(EXEEXT)
- $(RM) pnm2png$(EXEEXT)
- $(RM) png2pnm-static$(EXEEXT)
- $(RM) pnm2png-static$(EXEEXT)
-
-# End of makefile for png2pnm / pnm2png
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/README.txt b/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/README.txt
deleted file mode 100644
index f7f6ecb..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/README.txt
+++ /dev/null
@@ -1,120 +0,0 @@
-PngMinus
---------
-(copyright Willem van Schaik, 1999-2019)
-
-
-
-Some history
-------------
-Soon after the creation of PNG in 1995, the need was felt for a set of
-pnmtopng / pngtopnm utilities. Independently Alexander Lehmann and I
-(Willem van Schaik) started such a project. Luckily we discovered this
-and merged the two, which later became part of NetPBM, available from
-SourceForge.
-
-These two utilities have many, many options and make use of most of the
-features of PNG, like gamma, alpha, sbit, text-chunks, etc. This makes
-the utilities quite complex and by now not anymore very maintainable.
-When we wrote these programs, libpng was still in an early stage.
-Therefore, lots of the functionality that we put in our software can now
-be done using transform-functions in libpng.
-
-Finally, to compile these programs, you need to have installed and
-compiled three libraries: libpng, zlib and netpbm. Especially the latter
-makes the whole setup a bit bulky. But that's unavoidable given the many
-features of pnmtopng.
-
-
-What now (1999)
----------------
-At this moment libpng is in a very stable state and can do much of the
-work done in pnmtopng. Also, pnmtopng needs to be upgraded to the new
-interface of libpng. Hence, it is time for a rewrite from the ground up
-of pnmtopng and pngtopnm. This will happen in the near future (stay
-tuned). The new package will get a different name to distinguish it from
-the old one: PngPlus.
-
-To experiment a bit with the new interface of libpng, I started off with
-a small prototype that contains only the basic functionality. It doesn't
-have any of the options to read or write special chunks and it will do
-no gamma correction. But this makes it also a simple program that is
-quite easy to understand and can serve well as a template for other
-software developments. By now there are of course a couple of programs,
-like Greg Roelofs' rpng/wpng, that can be used just as good.
-
-
-Can and can not
----------------
-As this is the small brother of the future PngPlus, I called this fellow
-PngMinus. Because I started this development in good-old Turbo-C, I
-avoided the use the netpbm library, which requires DOS extenders. Again,
-another reason to call it PngMinus (minus netpbm :-). So, part of the
-program are some elementary routines to read / write pgm- and ppm-files.
-It does not handle B&W pbm-files, but instead you could do pgm with bit-
-depth 1.
-
-The downside of this approach is that you can not use them on images
-that require blocks of memory bigger than 64k (the DOS version). For
-larger images you will get an out-of-memory error.
-
-As said before, PngMinus doesn't correct for gamma. When reading
-png-files you can do this just as well by piping the output of png2pnm
-to pnmgamma, one of the standard PbmPlus tools. This same scenario will
-most probably also be followed in the full-blown future PngPlus, with
-the addition of course of the possibility to create gamma-chunks when
-writing png-files.
-
-On the other hand it supports alpha-channels. When reading a png-image
-you can write the alpha-channel into a pgm-file. And when creating an
-RGB+A png-image, you just combine a ppm-file with a corresponding
-pgm-file containing the alpha-channel. When reading, transparency chunks
-are converted into an alpha-channel and from there on treated the same
-way.
-
-Finally you can opt for writing ascii or binary pgm- and ppm-files. When
-the bit-depth is 16, the format will always be ascii.
-
-
-Using it
---------
-To distinguish them from pnmtopng and PngPlus, the utilities are named
-png2pnm and pnm2png (2 instead of to). The input- and output-files can
-be given as parameters or through redirection. Therefore the programs
-can be part of a pipe.
-
-To list the options type "png2pnm -h" or "pnm2png -h".
-
-
-Just like Scandinavian furniture
---------------------------------
-You have to put it together yourself. I developed the software on MS-DOS
-with Turbo-C 3.0 and RedHat Linux 4.2 with gcc. In both cases I used
-libpng-1.0.4 and zlib-1.1.3. By now (2019) it is twenty years later and
-more current versions are OK.
-
-The makefile assumes that the libpng libraries can be found in ../.. and
-libz in ../../../zlib. But you can change this to for example ../libpng
-and ../zlib. The makefile creates two versions of each program, one with
-static library support and the other using shared libraries.
-
-If you create a ../pngsuite directory and then store the basn####.png
-files from PngSuite (http://www.schaik.com/pngsuite/) in there, you can
-test the proper functioning of PngMinus by running pngminus.sh.
-
-
-Warranty
--------
-Please, remember that this was just a small experiment to learn a few
-things. It will have many unforeseen features <vbg> ... who said bugs? Use
-it when you are in need for something simple or when you want a starting
-point for developing your own stuff.
-
-
-The end
--------
-Willem van Schaik
-mailto:willem at schaik dot com
-http://www.schaik.com/png/
-
-Oct 1999, Jan 2019
-
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/makevms.com b/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/makevms.com
deleted file mode 100644
index 00561bc..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/makevms.com
+++ /dev/null
@@ -1,92 +0,0 @@
-$!------------------------------------------------------------------------------
-$! make Contrib programs of libpng under OpenVMS
-$!
-$!
-$! Look for the compiler used
-$!
-$ zlibsrc = "[---.zlib]"
-$ ccopt="/include=(''zlibsrc',[--])"
-$ if f$getsyi("HW_MODEL").ge.1024
-$ then
-$ ccopt = "/prefix=all"+ccopt
-$ comp = "__decc__=1"
-$ if f$trnlnm("SYS").eqs."" then define sys sys$library:
-$ else
-$ if f$search("SYS$SYSTEM:DECC$COMPILER.EXE").eqs.""
-$ then
-$ if f$trnlnm("SYS").eqs."" then define sys sys$library:
-$ if f$search("SYS$SYSTEM:VAXC.EXE").eqs.""
-$ then
-$ comp = "__gcc__=1"
-$ CC :== GCC
-$ else
-$ comp = "__vaxc__=1"
-$ endif
-$ else
-$ if f$trnlnm("SYS").eqs."" then define sys decc$library_include:
-$ ccopt = "/decc/prefix=all"+ccopt
-$ comp = "__decc__=1"
-$ endif
-$ endif
-$ open/write lopt lib.opt
-$ write lopt "[--]libpng.olb/lib"
-$ write lopt "''zlibsrc'libz.olb/lib"
-$ close lopt
-$ open/write xopt x11.opt
-$ write xopt "sys$library:decw$xlibshr.exe/share"
-$ close xopt
-$ write sys$output "Compiling PNG contrib programs ..."
-$ write sys$output "Building pnm2png..."
-$ CALL MAKE pnm2png.OBJ "cc ''CCOPT' pnm2png" -
- pnm2png.c
-$ call make pnm2png.exe -
- "LINK pnm2png,lib.opt/opt" -
- pnm2png.obj
-$ write sys$output "Building png2pnm..."
-$ CALL MAKE png2pnm.OBJ "cc ''CCOPT' png2pnm" -
- png2pnm.c
-$ call make png2pnm.exe -
- "LINK png2pnm,lib.opt/opt" -
- png2pnm.obj
-$ exit
-$!
-$!
-$MAKE: SUBROUTINE !SUBROUTINE TO CHECK DEPENDENCIES
-$ V = 'F$Verify(0)
-$! P1 = What we are trying to make
-$! P2 = Command to make it
-$! P3 - P8 What it depends on
-$
-$ If F$Search(P1) .Eqs. "" Then Goto Makeit
-$ Time = F$CvTime(F$File(P1,"RDT"))
-$arg=3
-$Loop:
-$ Argument = P'arg
-$ If Argument .Eqs. "" Then Goto Exit
-$ El=0
-$Loop2:
-$ File = F$Element(El," ",Argument)
-$ If File .Eqs. " " Then Goto Endl
-$ AFile = ""
-$Loop3:
-$ OFile = AFile
-$ AFile = F$Search(File)
-$ If AFile .Eqs. "" .Or. AFile .Eqs. OFile Then Goto NextEl
-$ If F$CvTime(F$File(AFile,"RDT")) .Ges. Time Then Goto Makeit
-$ Goto Loop3
-$NextEL:
-$ El = El + 1
-$ Goto Loop2
-$EndL:
-$ arg=arg+1
-$ If arg .Le. 8 Then Goto Loop
-$ Goto Exit
-$
-$Makeit:
-$ VV=F$VERIFY(0)
-$ write sys$output P2
-$ 'P2
-$ VV='F$Verify(VV)
-$Exit:
-$ If V Then Set Verify
-$ENDSUBROUTINE
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/png2pnm.bat b/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/png2pnm.bat
deleted file mode 100755
index a2798c3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/png2pnm.bat
+++ /dev/null
@@ -1,41 +0,0 @@
-REM -- grayscale
-png2pnm.exe -noraw ..\pngsuite\basn0g01.png basn0g01.pgm
-png2pnm.exe -noraw ..\pngsuite\basn0g02.png basn0g02.pgm
-png2pnm.exe -noraw ..\pngsuite\basn0g04.png basn0g04.pgm
-png2pnm.exe -noraw ..\pngsuite\basn0g08.png basn0g08.pgm
-png2pnm.exe -noraw ..\pngsuite\basn0g16.png basn0g16.pgm
-REM -- full-color
-png2pnm.exe -noraw ..\pngsuite\basn2c08.png basn2c08.ppm
-png2pnm.exe -noraw ..\pngsuite\basn2c16.png basn2c16.ppm
-REM -- paletted
-png2pnm.exe -noraw ..\pngsuite\basn3p01.png basn3p01.ppm
-png2pnm.exe -noraw ..\pngsuite\basn3p02.png basn3p02.ppm
-png2pnm.exe -noraw ..\pngsuite\basn3p04.png basn3p04.ppm
-png2pnm.exe -noraw ..\pngsuite\basn3p08.png basn3p08.ppm
-REM -- gray with alpha-channel
-png2pnm.exe -noraw ..\pngsuite\basn4a08.png basn4a08.pgm
-png2pnm.exe -noraw ..\pngsuite\basn4a16.png basn4a16.pgm
-REM -- color with alpha-channel
-png2pnm.exe -noraw -alpha basn6a08.pgm ..\pngsuite\basn6a08.png basn6a08.ppm
-png2pnm.exe -noraw -alpha basn6a16.pgm ..\pngsuite\basn6a16.png basn6a16.ppm
-REM -- grayscale
-png2pnm.exe -raw ..\pngsuite\basn0g01.png rawn0g01.pgm
-png2pnm.exe -raw ..\pngsuite\basn0g02.png rawn0g02.pgm
-png2pnm.exe -raw ..\pngsuite\basn0g04.png rawn0g04.pgm
-png2pnm.exe -raw ..\pngsuite\basn0g08.png rawn0g08.pgm
-png2pnm.exe -raw ..\pngsuite\basn0g16.png rawn0g16.pgm
-REM -- full-color
-png2pnm.exe -raw ..\pngsuite\basn2c08.png rawn2c08.ppm
-png2pnm.exe -raw ..\pngsuite\basn2c16.png rawn2c16.ppm
-REM -- paletted
-png2pnm.exe -raw ..\pngsuite\basn3p01.png rawn3p01.ppm
-png2pnm.exe -raw ..\pngsuite\basn3p02.png rawn3p02.ppm
-png2pnm.exe -raw ..\pngsuite\basn3p04.png rawn3p04.ppm
-png2pnm.exe -raw ..\pngsuite\basn3p08.png rawn3p08.ppm
-REM -- gray with alpha-channel
-png2pnm.exe -raw ..\pngsuite\basn4a08.png rawn4a08.pgm
-png2pnm.exe -raw ..\pngsuite\basn4a16.png rawn4a16.pgm
-REM -- color with alpha-channel
-png2pnm.exe -noraw -alpha rawn6a08.pgm ..\pngsuite\basn6a08.png rawn6a08.ppm
-png2pnm.exe -noraw -alpha rawn6a16.pgm ..\pngsuite\basn6a16.png rawn6a16.ppm
-
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/png2pnm.c b/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/png2pnm.c
deleted file mode 100644
index 5fef7ed..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/png2pnm.c
+++ /dev/null
@@ -1,427 +0,0 @@
-/*
- * png2pnm.c --- conversion from PNG-file to PGM/PPM-file
- * copyright (C) 1999-2019 by Willem van Schaik <willem at schaik dot com>
- *
- * This software is released under the MIT license. For conditions of
- * distribution and use, see the LICENSE file part of this package.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-
-#ifndef BOOL
-#define BOOL unsigned char
-#endif
-#ifndef TRUE
-#define TRUE (BOOL) 1
-#endif
-#ifndef FALSE
-#define FALSE (BOOL) 0
-#endif
-
-/* make png2pnm verbose so we can find problems (needs to be before png.h) */
-#ifndef PNG_DEBUG
-#define PNG_DEBUG 0
-#endif
-
-#include "png.h"
-
-/* function prototypes */
-
-int main (int argc, char *argv[]);
-void usage ();
-BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file,
- BOOL raw, BOOL alpha);
-
-/*
- * main
- */
-
-int main (int argc, char *argv[])
-{
- FILE *fp_rd = stdin;
- FILE *fp_wr = stdout;
- FILE *fp_al = NULL;
- BOOL raw = TRUE;
- BOOL alpha = FALSE;
- int argi;
-
- for (argi = 1; argi < argc; argi++)
- {
- if (argv[argi][0] == '-')
- {
- switch (argv[argi][1])
- {
- case 'n':
- raw = FALSE;
- break;
- case 'r':
- raw = TRUE;
- break;
- case 'a':
- alpha = TRUE;
- argi++;
- if ((fp_al = fopen (argv[argi], "wb")) == NULL)
- {
- fprintf (stderr, "PNM2PNG\n");
- fprintf (stderr, "Error: cannot create alpha-channel file %s\n",
- argv[argi]);
- exit (1);
- }
- break;
- case 'h':
- case '?':
- usage ();
- exit (0);
- break;
- default:
- fprintf (stderr, "PNG2PNM\n");
- fprintf (stderr, "Error: unknown option %s\n", argv[argi]);
- usage ();
- exit (1);
- break;
- } /* end switch */
- }
- else if (fp_rd == stdin)
- {
- if ((fp_rd = fopen (argv[argi], "rb")) == NULL)
- {
- fprintf (stderr, "PNG2PNM\n");
- fprintf (stderr, "Error: file %s does not exist\n", argv[argi]);
- exit (1);
- }
- }
- else if (fp_wr == stdout)
- {
- if ((fp_wr = fopen (argv[argi], "wb")) == NULL)
- {
- fprintf (stderr, "PNG2PNM\n");
- fprintf (stderr, "Error: cannot create file %s\n", argv[argi]);
- exit (1);
- }
- }
- else
- {
- fprintf (stderr, "PNG2PNM\n");
- fprintf (stderr, "Error: too many parameters\n");
- usage ();
- exit (1);
- }
- } /* end for */
-
-#if defined(O_BINARY) && (O_BINARY != 0)
- /* set stdin/stdout if required to binary */
- if (fp_rd == stdin)
- setmode (fileno (stdin), O_BINARY);
- if ((raw) && (fp_wr == stdout))
- setmode (fileno (stdout), O_BINARY);
-#endif
-
- /* call the conversion program itself */
- if (png2pnm (fp_rd, fp_wr, fp_al, raw, alpha) == FALSE)
- {
- fprintf (stderr, "PNG2PNM\n");
- fprintf (stderr, "Error: unsuccessful conversion of PNG-image\n");
- exit (1);
- }
-
- /* close input file */
- fclose (fp_rd);
- /* close output file */
- fclose (fp_wr);
- /* close alpha file */
- if (alpha)
- fclose (fp_al);
-
- return 0;
-}
-
-/*
- * usage
- */
-
-void usage ()
-{
- fprintf (stderr, "PNG2PNM\n");
- fprintf (stderr, " by Willem van Schaik, 1999\n");
- fprintf (stderr, "Usage: png2pnm [options] <file>.png [<file>.pnm]\n");
- fprintf (stderr, " or: ... | png2pnm [options]\n");
- fprintf (stderr, "Options:\n");
- fprintf (stderr,
- " -r[aw] write pnm-file in binary format (P4/P5/P6) (default)\n");
- fprintf (stderr, " -n[oraw] write pnm-file in ascii format (P1/P2/P3)\n");
- fprintf (stderr,
- " -a[lpha] <file>.pgm write PNG alpha channel as pgm-file\n");
- fprintf (stderr, " -h | -? print this help-information\n");
-}
-
-/*
- * png2pnm
- */
-
-BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file,
- BOOL raw, BOOL alpha)
-{
- png_struct *png_ptr = NULL;
- png_info *info_ptr = NULL;
- png_byte buf[8];
- png_byte *png_pixels = NULL;
- png_byte **row_pointers = NULL;
- png_byte *pix_ptr = NULL;
- png_uint_32 row_bytes;
-
- png_uint_32 width;
- png_uint_32 height;
- int bit_depth;
- int channels;
- int color_type;
- int alpha_present;
- int row, col;
- int ret;
- int i;
- long dep_16;
-
- /* read and check signature in PNG file */
- ret = fread (buf, 1, 8, png_file);
- if (ret != 8)
- return FALSE;
-
- ret = png_sig_cmp (buf, 0, 8);
- if (ret != 0)
- return FALSE;
-
- /* create png and info structures */
-
- png_ptr = png_create_read_struct (png_get_libpng_ver(NULL),
- NULL, NULL, NULL);
- if (!png_ptr)
- return FALSE; /* out of memory */
-
- info_ptr = png_create_info_struct (png_ptr);
- if (!info_ptr)
- {
- png_destroy_read_struct (&png_ptr, NULL, NULL);
- return FALSE; /* out of memory */
- }
-
- if (setjmp (png_jmpbuf (png_ptr)))
- {
- png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
- return FALSE;
- }
-
- /* set up the input control for C streams */
- png_init_io (png_ptr, png_file);
- png_set_sig_bytes (png_ptr, 8); /* we already read the 8 signature bytes */
-
- /* read the file information */
- png_read_info (png_ptr, info_ptr);
-
- /* get size and bit-depth of the PNG-image */
- png_get_IHDR (png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
- NULL, NULL, NULL);
-
- /* set-up the transformations */
-
- /* transform paletted images into full-color rgb */
- if (color_type == PNG_COLOR_TYPE_PALETTE)
- png_set_expand (png_ptr);
- /* expand images to bit-depth 8 (only applicable for grayscale images) */
- if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
- png_set_expand (png_ptr);
- /* transform transparency maps into full alpha-channel */
- if (png_get_valid (png_ptr, info_ptr, PNG_INFO_tRNS))
- png_set_expand (png_ptr);
-
-#ifdef NJET
- /* downgrade 16-bit images to 8-bit */
- if (bit_depth == 16)
- png_set_strip_16 (png_ptr);
- /* transform grayscale images into full-color */
- if (color_type == PNG_COLOR_TYPE_GRAY ||
- color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- png_set_gray_to_rgb (png_ptr);
- /* only if file has a file gamma, we do a correction */
- if (png_get_gAMA (png_ptr, info_ptr, &file_gamma))
- png_set_gamma (png_ptr, (double) 2.2, file_gamma);
-#endif
-
- /* all transformations have been registered; now update info_ptr data,
- * get rowbytes and channels, and allocate image memory */
-
- png_read_update_info (png_ptr, info_ptr);
-
- /* get the new color-type and bit-depth (after expansion/stripping) */
- png_get_IHDR (png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
- NULL, NULL, NULL);
-
- /* check for 16-bit files */
- if (bit_depth == 16)
- {
- raw = FALSE;
-#if defined(O_BINARY) && (O_BINARY != 0)
- setmode (fileno (pnm_file), O_BINARY);
-#endif
- }
-
- /* calculate new number of channels and store alpha-presence */
- if (color_type == PNG_COLOR_TYPE_GRAY)
- channels = 1;
- else if (color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- channels = 2;
- else if (color_type == PNG_COLOR_TYPE_RGB)
- channels = 3;
- else if (color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- channels = 4;
- else
- channels = 0; /* should never happen */
- alpha_present = (channels - 1) % 2;
-
- /* check if alpha is expected to be present in file */
- if (alpha && !alpha_present)
- {
- fprintf (stderr, "PNG2PNM\n");
- fprintf (stderr, "Error: PNG-file doesn't contain alpha channel\n");
- exit (1);
- }
-
- /* row_bytes is the width x number of channels x (bit-depth / 8) */
- row_bytes = png_get_rowbytes (png_ptr, info_ptr);
-
- if ((row_bytes == 0) ||
- ((size_t) height > (size_t) (-1) / (size_t) row_bytes))
- {
- /* too big */
- png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
- return FALSE;
- }
- if ((png_pixels = (png_byte *)
- malloc ((size_t) row_bytes * (size_t) height)) == NULL)
- {
- png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
- return FALSE;
- }
-
- if ((row_pointers = (png_byte **)
- malloc ((size_t) height * sizeof (png_byte *))) == NULL)
- {
- png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
- free (png_pixels);
- return FALSE;
- }
-
- /* set the individual row_pointers to point at the correct offsets */
- for (i = 0; i < ((int) height); i++)
- row_pointers[i] = png_pixels + i * row_bytes;
-
- /* now we can go ahead and just read the whole image */
- png_read_image (png_ptr, row_pointers);
-
- /* read rest of file, and get additional chunks in info_ptr - REQUIRED */
- png_read_end (png_ptr, info_ptr);
-
- /* clean up after the read, and free any memory allocated - REQUIRED */
- png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
-
- /* write header of PNM file */
-
- if ((color_type == PNG_COLOR_TYPE_GRAY) ||
- (color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
- {
- fprintf (pnm_file, "%s\n", (raw) ? "P5" : "P2");
- fprintf (pnm_file, "%d %d\n", (int) width, (int) height);
- fprintf (pnm_file, "%ld\n", ((1L << (int) bit_depth) - 1L));
- }
- else if ((color_type == PNG_COLOR_TYPE_RGB) ||
- (color_type == PNG_COLOR_TYPE_RGB_ALPHA))
- {
- fprintf (pnm_file, "%s\n", (raw) ? "P6" : "P3");
- fprintf (pnm_file, "%d %d\n", (int) width, (int) height);
- fprintf (pnm_file, "%ld\n", ((1L << (int) bit_depth) - 1L));
- }
-
- /* write header of PGM file with alpha channel */
-
- if ((alpha) &&
- ((color_type == PNG_COLOR_TYPE_GRAY_ALPHA) ||
- (color_type == PNG_COLOR_TYPE_RGB_ALPHA)))
- {
- fprintf (alpha_file, "%s\n", (raw) ? "P5" : "P2");
- fprintf (alpha_file, "%d %d\n", (int) width, (int) height);
- fprintf (alpha_file, "%ld\n", ((1L << (int) bit_depth) - 1L));
- }
-
- /* write data to PNM file */
- pix_ptr = png_pixels;
-
- for (row = 0; row < (int) height; row++)
- {
- for (col = 0; col < (int) width; col++)
- {
- for (i = 0; i < (channels - alpha_present); i++)
- {
- if (raw)
- {
- fputc ((int) *pix_ptr++, pnm_file);
- }
- else
- {
- if (bit_depth == 16)
- {
- dep_16 = (long) *pix_ptr++;
- fprintf (pnm_file, "%ld ", (dep_16 << 8) + ((long) *pix_ptr++));
- }
- else
- {
- fprintf (pnm_file, "%ld ", (long) *pix_ptr++);
- }
- }
- }
- if (alpha_present)
- {
- if (!alpha)
- {
- pix_ptr++; /* alpha */
- if (bit_depth == 16)
- pix_ptr++;
- }
- else /* output alpha-channel as pgm file */
- {
- if (raw)
- {
- fputc ((int) *pix_ptr++, alpha_file);
- }
- else
- {
- if (bit_depth == 16)
- {
- dep_16 = (long) *pix_ptr++;
- fprintf (alpha_file, "%ld ", (dep_16 << 8) + (long) *pix_ptr++);
- }
- else
- {
- fprintf (alpha_file, "%ld ", (long) *pix_ptr++);
- }
- }
- }
- } /* end if alpha_present */
-
- if (!raw)
- if (col % 4 == 3)
- fprintf (pnm_file, "\n");
- } /* end for col */
-
- if (!raw)
- if (col % 4 != 0)
- fprintf (pnm_file, "\n");
- } /* end for row */
-
- if (row_pointers != NULL)
- free (row_pointers);
- if (png_pixels != NULL)
- free (png_pixels);
-
- return TRUE;
-
-} /* end of source */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/png2pnm.sh b/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/png2pnm.sh
deleted file mode 100755
index 756126a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/png2pnm.sh
+++ /dev/null
@@ -1,42 +0,0 @@
-#!/bin/sh
-# -- grayscale
-./png2pnm -noraw ../pngsuite/basn0g01.png basn0g01.pgm
-./png2pnm -noraw ../pngsuite/basn0g02.png basn0g02.pgm
-./png2pnm -noraw ../pngsuite/basn0g04.png basn0g04.pgm
-./png2pnm -noraw ../pngsuite/basn0g08.png basn0g08.pgm
-./png2pnm -noraw ../pngsuite/basn0g16.png basn0g16.pgm
-# -- full-color
-./png2pnm -noraw ../pngsuite/basn2c08.png basn2c08.ppm
-./png2pnm -noraw ../pngsuite/basn2c16.png basn2c16.ppm
-# -- paletted
-./png2pnm -noraw ../pngsuite/basn3p01.png basn3p01.ppm
-./png2pnm -noraw ../pngsuite/basn3p02.png basn3p02.ppm
-./png2pnm -noraw ../pngsuite/basn3p04.png basn3p04.ppm
-./png2pnm -noraw ../pngsuite/basn3p08.png basn3p08.ppm
-# -- gray with alpha-channel
-./png2pnm -noraw ../pngsuite/basn4a08.png basn4a08.pgm
-./png2pnm -noraw ../pngsuite/basn4a16.png basn4a16.pgm
-# -- color with alpha-channel
-./png2pnm -noraw -alpha basn6a08.pgm ../pngsuite/basn6a08.png basn6a08.ppm
-./png2pnm -noraw -alpha basn6a16.pgm ../pngsuite/basn6a16.png basn6a16.ppm
-# -- grayscale
-./png2pnm -raw ../pngsuite/basn0g01.png rawn0g01.pgm
-./png2pnm -raw ../pngsuite/basn0g02.png rawn0g02.pgm
-./png2pnm -raw ../pngsuite/basn0g04.png rawn0g04.pgm
-./png2pnm -raw ../pngsuite/basn0g08.png rawn0g08.pgm
-./png2pnm -raw ../pngsuite/basn0g16.png rawn0g16.pgm
-# -- full-color
-./png2pnm -raw ../pngsuite/basn2c08.png rawn2c08.ppm
-./png2pnm -raw ../pngsuite/basn2c16.png rawn2c16.ppm
-# -- paletted
-./png2pnm -raw ../pngsuite/basn3p01.png rawn3p01.ppm
-./png2pnm -raw ../pngsuite/basn3p02.png rawn3p02.ppm
-./png2pnm -raw ../pngsuite/basn3p04.png rawn3p04.ppm
-./png2pnm -raw ../pngsuite/basn3p08.png rawn3p08.ppm
-# -- gray with alpha-channel
-./png2pnm -raw ../pngsuite/basn4a08.png rawn4a08.pgm
-./png2pnm -raw ../pngsuite/basn4a16.png rawn4a16.pgm
-# -- color with alpha-channel
-./png2pnm -noraw -alpha rawn6a08.pgm ../pngsuite/basn6a08.png rawn6a08.ppm
-./png2pnm -noraw -alpha rawn6a16.pgm ../pngsuite/basn6a16.png rawn6a16.ppm
-
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/pngminus.bat b/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/pngminus.bat
deleted file mode 100755
index fa60e7d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/pngminus.bat
+++ /dev/null
@@ -1,4 +0,0 @@
-make
-call png2pnm.bat
-call pnm2png.bat
-
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/pngminus.sh b/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/pngminus.sh
deleted file mode 100755
index cc9b4a5..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/pngminus.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/sh
-make
-sh png2pnm.sh
-sh pnm2png.sh
-
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/pnm2png.bat b/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/pnm2png.bat
deleted file mode 100755
index c02b80b..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/pnm2png.bat
+++ /dev/null
@@ -1,41 +0,0 @@
-REM -- grayscale
-pnm2png.exe basn0g01.pgm basn0g01.png
-pnm2png.exe basn0g02.pgm basn0g02.png
-pnm2png.exe basn0g04.pgm basn0g04.png
-pnm2png.exe basn0g08.pgm basn0g08.png
-pnm2png.exe basn0g16.pgm basn0g16.png
-REM -- full-color
-pnm2png.exe basn2c08.ppm basn2c08.png
-pnm2png.exe basn2c16.ppm basn2c16.png
-REM -- paletted
-pnm2png.exe basn3p01.ppm basn3p01.png
-pnm2png.exe basn3p02.ppm basn3p02.png
-pnm2png.exe basn3p04.ppm basn3p04.png
-pnm2png.exe basn3p08.ppm basn3p08.png
-REM -- gray with alpha-channel
-pnm2png.exe -alpha basn6a08.pgm basn4a08.pgm basn4a08.png
-pnm2png.exe -alpha basn6a16.pgm basn4a16.pgm basn4a16.png
-REM -- color with alpha-channel
-pnm2png.exe -alpha basn6a08.pgm basn6a08.ppm basn6a08.png
-pnm2png.exe -alpha basn6a16.pgm basn6a16.ppm basn6a16.png
-REM -- grayscale
-pnm2png.exe rawn0g01.pgm rawn0g01.png
-pnm2png.exe rawn0g02.pgm rawn0g02.png
-pnm2png.exe rawn0g04.pgm rawn0g04.png
-pnm2png.exe rawn0g08.pgm rawn0g08.png
-pnm2png.exe rawn0g16.pgm rawn0g16.png
-REM -- full-color
-pnm2png.exe rawn2c08.ppm rawn2c08.png
-pnm2png.exe rawn2c16.ppm rawn2c16.png
-REM -- paletted
-pnm2png.exe rawn3p01.ppm rawn3p01.png
-pnm2png.exe rawn3p02.ppm rawn3p02.png
-pnm2png.exe rawn3p04.ppm rawn3p04.png
-pnm2png.exe rawn3p08.ppm rawn3p08.png
-REM -- gray with alpha-channel
-pnm2png.exe -alpha rawn6a08.pgm rawn4a08.pgm rawn4a08.png
-pnm2png.exe -alpha rawn6a16.pgm rawn4a16.pgm rawn4a16.png
-REM -- color with alpha-channel
-pnm2png.exe -alpha rawn6a08.pgm rawn6a08.ppm rawn6a08.png
-pnm2png.exe -alpha rawn6a16.pgm rawn6a16.ppm rawn6a16.png
-
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/pnm2png.c b/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/pnm2png.c
deleted file mode 100644
index a2c2551..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/pnm2png.c
+++ /dev/null
@@ -1,620 +0,0 @@
-/*
- * pnm2png.c --- conversion from PBM/PGM/PPM-file to PNG-file
- * copyright (C) 1999-2019 by Willem van Schaik <willem at schaik dot com>
- *
- * This software is released under the MIT license. For conditions of
- * distribution and use, see the LICENSE file part of this package.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-
-#ifndef BOOL
-#define BOOL unsigned char
-#endif
-#ifndef TRUE
-#define TRUE (BOOL) 1
-#endif
-#ifndef FALSE
-#define FALSE (BOOL) 0
-#endif
-
-/* make pnm2png verbose so we can find problems (needs to be before png.h) */
-#ifndef PNG_DEBUG
-#define PNG_DEBUG 0
-#endif
-
-#include "png.h"
-
-/* function prototypes */
-
-int main (int argc, char *argv[]);
-void usage ();
-BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file,
- BOOL interlace, BOOL alpha);
-void get_token (FILE *pnm_file, char *token_buf, size_t token_buf_size);
-png_uint_32 get_data (FILE *pnm_file, int depth);
-png_uint_32 get_value (FILE *pnm_file, int depth);
-
-/*
- * main
- */
-
-int main (int argc, char *argv[])
-{
- FILE *fp_rd = stdin;
- FILE *fp_al = NULL;
- FILE *fp_wr = stdout;
- BOOL interlace = FALSE;
- BOOL alpha = FALSE;
- int argi;
-
- for (argi = 1; argi < argc; argi++)
- {
- if (argv[argi][0] == '-')
- {
- switch (argv[argi][1])
- {
- case 'i':
- interlace = TRUE;
- break;
- case 'a':
- alpha = TRUE;
- argi++;
- if ((fp_al = fopen (argv[argi], "rb")) == NULL)
- {
- fprintf (stderr, "PNM2PNG\n");
- fprintf (stderr, "Error: alpha-channel file %s does not exist\n",
- argv[argi]);
- exit (1);
- }
- break;
- case 'h':
- case '?':
- usage ();
- exit (0);
- break;
- default:
- fprintf (stderr, "PNM2PNG\n");
- fprintf (stderr, "Error: unknown option %s\n", argv[argi]);
- usage ();
- exit (1);
- break;
- } /* end switch */
- }
- else if (fp_rd == stdin)
- {
- if ((fp_rd = fopen (argv[argi], "rb")) == NULL)
- {
- fprintf (stderr, "PNM2PNG\n");
- fprintf (stderr, "Error: file %s does not exist\n", argv[argi]);
- exit (1);
- }
- }
- else if (fp_wr == stdout)
- {
- if ((fp_wr = fopen (argv[argi], "wb")) == NULL)
- {
- fprintf (stderr, "PNM2PNG\n");
- fprintf (stderr, "Error: cannot create PNG-file %s\n", argv[argi]);
- exit (1);
- }
- }
- else
- {
- fprintf (stderr, "PNM2PNG\n");
- fprintf (stderr, "Error: too many parameters\n");
- usage ();
- exit (1);
- }
- } /* end for */
-
-#if defined(O_BINARY) && (O_BINARY != 0)
- /* set stdin/stdout to binary,
- * we're reading the PNM always! in binary format
- */
- if (fp_rd == stdin)
- setmode (fileno (stdin), O_BINARY);
- if (fp_wr == stdout)
- setmode (fileno (stdout), O_BINARY);
-#endif
-
- /* call the conversion program itself */
- if (pnm2png (fp_rd, fp_wr, fp_al, interlace, alpha) == FALSE)
- {
- fprintf (stderr, "PNM2PNG\n");
- fprintf (stderr, "Error: unsuccessful converting to PNG-image\n");
- exit (1);
- }
-
- /* close input file */
- fclose (fp_rd);
- /* close output file */
- fclose (fp_wr);
- /* close alpha file */
- if (alpha)
- fclose (fp_al);
-
- return 0;
-}
-
-/*
- * usage
- */
-
-void usage ()
-{
- fprintf (stderr, "PNM2PNG\n");
- fprintf (stderr, " by Willem van Schaik, 1999\n");
- fprintf (stderr, "Usage: pnm2png [options] <file>.<pnm> [<file>.png]\n");
- fprintf (stderr, " or: ... | pnm2png [options]\n");
- fprintf (stderr, "Options:\n");
- fprintf (stderr, " -i[nterlace] write png-file with interlacing on\n");
- fprintf (stderr,
- " -a[lpha] <file>.pgm read PNG alpha channel as pgm-file\n");
- fprintf (stderr, " -h | -? print this help-information\n");
-}
-
-/*
- * pnm2png
- */
-
-BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file,
- BOOL interlace, BOOL alpha)
-{
- png_struct *png_ptr = NULL;
- png_info *info_ptr = NULL;
- png_byte *png_pixels = NULL;
- png_byte **row_pointers = NULL;
- png_byte *pix_ptr = NULL;
- volatile png_uint_32 row_bytes;
-
- char type_token[16];
- char width_token[16];
- char height_token[16];
- char maxval_token[16];
- volatile int color_type = 1;
- unsigned long ul_width = 0, ul_alpha_width = 0;
- unsigned long ul_height = 0, ul_alpha_height = 0;
- unsigned long ul_maxval = 0;
- volatile png_uint_32 width = 0, height = 0;
- volatile png_uint_32 alpha_width = 0, alpha_height = 0;
- png_uint_32 maxval;
- volatile int bit_depth = 0;
- int channels = 0;
- int alpha_depth = 0;
- int alpha_present = 0;
- int row, col;
- BOOL raw, alpha_raw = FALSE;
-#if defined(PNG_WRITE_INVERT_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
- BOOL packed_bitmap = FALSE;
-#endif
- png_uint_32 tmp16;
- int i;
-
- /* read header of PNM file */
-
- get_token (pnm_file, type_token, sizeof (type_token));
- if (type_token[0] != 'P')
- {
- return FALSE;
- }
- else if ((type_token[1] == '1') || (type_token[1] == '4'))
- {
-#if defined(PNG_WRITE_INVERT_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
- raw = (type_token[1] == '4');
- color_type = PNG_COLOR_TYPE_GRAY;
- get_token (pnm_file, width_token, sizeof (width_token));
- sscanf (width_token, "%lu", &ul_width);
- width = (png_uint_32) ul_width;
- get_token (pnm_file, height_token, sizeof (height_token));
- sscanf (height_token, "%lu", &ul_height);
- height = (png_uint_32) ul_height;
- bit_depth = 1;
- packed_bitmap = TRUE;
-#else
- fprintf (stderr, "PNM2PNG built without PNG_WRITE_INVERT_SUPPORTED and\n");
- fprintf (stderr, "PNG_WRITE_PACK_SUPPORTED can't read PBM (P1,P4) files\n");
- return FALSE;
-#endif
- }
- else if ((type_token[1] == '2') || (type_token[1] == '5'))
- {
- raw = (type_token[1] == '5');
- color_type = PNG_COLOR_TYPE_GRAY;
- get_token (pnm_file, width_token, sizeof (width_token));
- sscanf (width_token, "%lu", &ul_width);
- width = (png_uint_32) ul_width;
- get_token (pnm_file, height_token, sizeof (height_token));
- sscanf (height_token, "%lu", &ul_height);
- height = (png_uint_32) ul_height;
- get_token (pnm_file, maxval_token, sizeof (maxval_token));
- sscanf (maxval_token, "%lu", &ul_maxval);
- maxval = (png_uint_32) ul_maxval;
-
- if (maxval <= 1)
- bit_depth = 1;
- else if (maxval <= 3)
- bit_depth = 2;
- else if (maxval <= 15)
- bit_depth = 4;
- else if (maxval <= 255)
- bit_depth = 8;
- else if (maxval <= 65535U)
- bit_depth = 16;
- else /* maxval > 65535U */
- return FALSE;
- }
- else if ((type_token[1] == '3') || (type_token[1] == '6'))
- {
- raw = (type_token[1] == '6');
- color_type = PNG_COLOR_TYPE_RGB;
- get_token (pnm_file, width_token, sizeof (width_token));
- sscanf (width_token, "%lu", &ul_width);
- width = (png_uint_32) ul_width;
- get_token (pnm_file, height_token, sizeof (height_token));
- sscanf (height_token, "%lu", &ul_height);
- height = (png_uint_32) ul_height;
- get_token (pnm_file, maxval_token, sizeof (maxval_token));
- sscanf (maxval_token, "%lu", &ul_maxval);
- maxval = (png_uint_32) ul_maxval;
- if (maxval <= 1)
- bit_depth = 1;
- else if (maxval <= 3)
- bit_depth = 2;
- else if (maxval <= 15)
- bit_depth = 4;
- else if (maxval <= 255)
- bit_depth = 8;
- else if (maxval <= 65535U)
- bit_depth = 16;
- else /* maxval > 65535U */
- return FALSE;
- }
- else
- {
- return FALSE;
- }
-
- /* read header of PGM file with alpha channel */
-
- if (alpha)
- {
- if (color_type == PNG_COLOR_TYPE_GRAY)
- color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
- if (color_type == PNG_COLOR_TYPE_RGB)
- color_type = PNG_COLOR_TYPE_RGB_ALPHA;
-
- get_token (alpha_file, type_token, sizeof (type_token));
- if (type_token[0] != 'P')
- {
- return FALSE;
- }
- else if ((type_token[1] == '2') || (type_token[1] == '5'))
- {
- alpha_raw = (type_token[1] == '5');
- get_token (alpha_file, width_token, sizeof (width_token));
- sscanf (width_token, "%lu", &ul_alpha_width);
- alpha_width = (png_uint_32) ul_alpha_width;
- if (alpha_width != width)
- return FALSE;
- get_token (alpha_file, height_token, sizeof (height_token));
- sscanf (height_token, "%lu", &ul_alpha_height);
- alpha_height = (png_uint_32) ul_alpha_height;
- if (alpha_height != height)
- return FALSE;
- get_token (alpha_file, maxval_token, sizeof (maxval_token));
- sscanf (maxval_token, "%lu", &ul_maxval);
- maxval = (png_uint_32) ul_maxval;
- if (maxval <= 1)
- alpha_depth = 1;
- else if (maxval <= 3)
- alpha_depth = 2;
- else if (maxval <= 15)
- alpha_depth = 4;
- else if (maxval <= 255)
- alpha_depth = 8;
- else if (maxval <= 65535U)
- alpha_depth = 16;
- else /* maxval > 65535U */
- return FALSE;
- if (alpha_depth != bit_depth)
- return FALSE;
- }
- else
- {
- return FALSE;
- }
- } /* end if alpha */
-
- /* calculate the number of channels and store alpha-presence */
- if (color_type == PNG_COLOR_TYPE_GRAY)
- channels = 1;
- else if (color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- channels = 2;
- else if (color_type == PNG_COLOR_TYPE_RGB)
- channels = 3;
- else if (color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- channels = 4;
-#if 0
- else
- channels = 0; /* cannot happen */
-#endif
-
- alpha_present = (channels - 1) % 2;
-
-#if defined(PNG_WRITE_INVERT_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
- if (packed_bitmap)
- {
- /* row data is as many bytes as can fit width x channels x bit_depth */
- row_bytes = (width * channels * bit_depth + 7) / 8;
- }
- else
-#endif
- {
- /* row_bytes is the width x number of channels x (bit-depth / 8) */
- row_bytes = width * channels * ((bit_depth <= 8) ? 1 : 2);
- }
-
- if ((row_bytes == 0) ||
- ((size_t) height > (size_t) (-1) / (size_t) row_bytes))
- {
- /* too big */
- return FALSE;
- }
- if ((png_pixels = (png_byte *)
- malloc ((size_t) row_bytes * (size_t) height)) == NULL)
- {
- /* out of memory */
- return FALSE;
- }
-
- /* read data from PNM file */
- pix_ptr = png_pixels;
-
- for (row = 0; row < (int) height; row++)
- {
-#if defined(PNG_WRITE_INVERT_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
- if (packed_bitmap)
- {
- for (i = 0; i < (int) row_bytes; i++)
- {
- /* png supports this format natively so no conversion is needed */
- *pix_ptr++ = get_data (pnm_file, 8);
- }
- }
- else
-#endif
- {
- for (col = 0; col < (int) width; col++)
- {
- for (i = 0; i < (channels - alpha_present); i++)
- {
- if (raw)
- {
- *pix_ptr++ = get_data (pnm_file, bit_depth);
- }
- else
- {
- if (bit_depth <= 8)
- {
- *pix_ptr++ = get_value (pnm_file, bit_depth);
- }
- else
- {
- tmp16 = get_value (pnm_file, bit_depth);
- *pix_ptr = (png_byte) ((tmp16 >> 8) & 0xFF);
- pix_ptr++;
- *pix_ptr = (png_byte) (tmp16 & 0xFF);
- pix_ptr++;
- }
- }
- }
-
- if (alpha) /* read alpha-channel from pgm file */
- {
- if (alpha_raw)
- {
- *pix_ptr++ = get_data (alpha_file, alpha_depth);
- }
- else
- {
- if (alpha_depth <= 8)
- {
- *pix_ptr++ = get_value (alpha_file, bit_depth);
- }
- else
- {
- tmp16 = get_value (alpha_file, bit_depth);
- *pix_ptr++ = (png_byte) ((tmp16 >> 8) & 0xFF);
- *pix_ptr++ = (png_byte) (tmp16 & 0xFF);
- }
- }
- } /* end if alpha */
- } /* end if packed_bitmap */
- } /* end for col */
- } /* end for row */
-
- /* prepare the standard PNG structures */
- png_ptr = png_create_write_struct (png_get_libpng_ver(NULL),
- NULL, NULL, NULL);
- if (!png_ptr)
- {
- free (png_pixels);
- return FALSE;
- }
- info_ptr = png_create_info_struct (png_ptr);
- if (!info_ptr)
- {
- png_destroy_write_struct (&png_ptr, NULL);
- free (png_pixels);
- return FALSE;
- }
-
-#if defined(PNG_WRITE_INVERT_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
- if (packed_bitmap == TRUE)
- {
- png_set_packing (png_ptr);
- png_set_invert_mono (png_ptr);
- }
-#endif
-
- if (setjmp (png_jmpbuf (png_ptr)))
- {
- png_destroy_write_struct (&png_ptr, &info_ptr);
- free (png_pixels);
- return FALSE;
- }
-
- /* initialize the png structure */
- png_init_io (png_ptr, png_file);
-
- /* we're going to write more or less the same PNG as the input file */
- png_set_IHDR (png_ptr, info_ptr, width, height, bit_depth, color_type,
- (!interlace) ? PNG_INTERLACE_NONE : PNG_INTERLACE_ADAM7,
- PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
-
- /* write the file header information */
- png_write_info (png_ptr, info_ptr);
-
- /* if needed we will allocate memory for an new array of row-pointers */
- if (row_pointers == NULL)
- {
- if ((row_pointers = (png_byte **)
- malloc (height * sizeof (png_byte *))) == NULL)
- {
- png_destroy_write_struct (&png_ptr, &info_ptr);
- free (png_pixels);
- return FALSE;
- }
- }
-
- /* set the individual row_pointers to point at the correct offsets */
- for (i = 0; i < (int) height; i++)
- row_pointers[i] = png_pixels + i * row_bytes;
-
- /* write out the entire image data in one call */
- png_write_image (png_ptr, row_pointers);
-
- /* write the additional chunks to the PNG file (not really needed) */
- png_write_end (png_ptr, info_ptr);
-
- /* clean up after the write, and free any memory allocated */
- png_destroy_write_struct (&png_ptr, &info_ptr);
-
- if (row_pointers != NULL)
- free (row_pointers);
- if (png_pixels != NULL)
- free (png_pixels);
-
- return TRUE;
-} /* end of pnm2png */
-
-/*
- * get_token - gets the first string after whitespace
- */
-
-void get_token (FILE *pnm_file, char *token_buf, size_t token_buf_size)
-{
- size_t i = 0;
- int ret;
-
- /* remove white-space and comment lines */
- do
- {
- ret = fgetc (pnm_file);
- if (ret == '#')
- {
- /* the rest of this line is a comment */
- do
- {
- ret = fgetc (pnm_file);
- }
- while ((ret != '\n') && (ret != '\r') && (ret != EOF));
- }
- if (ret == EOF) break;
- token_buf[i] = (char) ret;
- }
- while ((ret == '\n') || (ret == '\r') || (ret == ' '));
-
- /* read string */
- do
- {
- ret = fgetc (pnm_file);
- if (ret == EOF) break;
- if (++i == token_buf_size - 1) break;
- token_buf[i] = (char) ret;
- }
- while ((ret != '\n') && (ret != '\r') && (ret != ' '));
-
- token_buf[i] = '\0';
-
- return;
-}
-
-/*
- * get_data - takes first byte and converts into next pixel value,
- * taking as much bits as defined by bit-depth and
- * using the bit-depth to fill up a byte (0Ah -> AAh)
- */
-
-png_uint_32 get_data (FILE *pnm_file, int depth)
-{
- static int bits_left = 0;
- static int old_value = 0;
- static int mask = 0;
- int i;
- png_uint_32 ret_value;
-
- if (mask == 0)
- for (i = 0; i < depth; i++)
- mask = (mask >> 1) | 0x80;
-
- if (bits_left <= 0)
- {
- old_value = fgetc (pnm_file);
- bits_left = 8;
- }
-
- ret_value = old_value & mask;
- for (i = 1; i < (8 / depth); i++)
- ret_value = ret_value || (ret_value >> depth);
-
- old_value = (old_value << depth) & 0xFF;
- bits_left -= depth;
-
- return ret_value;
-}
-
-/*
- * get_value - takes first (numeric) string and converts into number,
- * using the bit-depth to fill up a byte (0Ah -> AAh)
- */
-
-png_uint_32 get_value (FILE *pnm_file, int depth)
-{
- static png_uint_32 mask = 0;
- char token[16];
- unsigned long ul_ret_value;
- png_uint_32 ret_value;
- int i = 0;
-
- if (mask == 0)
- for (i = 0; i < depth; i++)
- mask = (mask << 1) | 0x01;
-
- get_token (pnm_file, token, sizeof (token));
- sscanf (token, "%lu", &ul_ret_value);
- ret_value = (png_uint_32) ul_ret_value;
-
- ret_value &= mask;
-
- if (depth < 8)
- for (i = 0; i < (8 / depth); i++)
- ret_value = (ret_value << depth) || ret_value;
-
- return ret_value;
-}
-
-/* end of source */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/pnm2png.sh b/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/pnm2png.sh
deleted file mode 100755
index 2ad17a6..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngminus/pnm2png.sh
+++ /dev/null
@@ -1,42 +0,0 @@
-#!/bin/sh
-# -- grayscale
-./pnm2png basn0g01.pgm basn0g01.png
-./pnm2png basn0g02.pgm basn0g02.png
-./pnm2png basn0g04.pgm basn0g04.png
-./pnm2png basn0g08.pgm basn0g08.png
-./pnm2png basn0g16.pgm basn0g16.png
-# -- full-color
-./pnm2png basn2c08.ppm basn2c08.png
-./pnm2png basn2c16.ppm basn2c16.png
-# -- paletted
-./pnm2png basn3p01.ppm basn3p01.png
-./pnm2png basn3p02.ppm basn3p02.png
-./pnm2png basn3p04.ppm basn3p04.png
-./pnm2png basn3p08.ppm basn3p08.png
-# -- gray with alpha-channel
-./pnm2png -alpha basn6a08.pgm basn4a08.pgm basn4a08.png
-./pnm2png -alpha basn6a16.pgm basn4a16.pgm basn4a16.png
-# -- color with alpha-channel
-./pnm2png -alpha basn6a08.pgm basn6a08.ppm basn6a08.png
-./pnm2png -alpha basn6a16.pgm basn6a16.ppm basn6a16.png
-# -- grayscale
-./pnm2png rawn0g01.pgm rawn0g01.png
-./pnm2png rawn0g02.pgm rawn0g02.png
-./pnm2png rawn0g04.pgm rawn0g04.png
-./pnm2png rawn0g08.pgm rawn0g08.png
-./pnm2png rawn0g16.pgm rawn0g16.png
-# -- full-color
-./pnm2png rawn2c08.ppm rawn2c08.png
-./pnm2png rawn2c16.ppm rawn2c16.png
-# -- paletted
-./pnm2png rawn3p01.ppm rawn3p01.png
-./pnm2png rawn3p02.ppm rawn3p02.png
-./pnm2png rawn3p04.ppm rawn3p04.png
-./pnm2png rawn3p08.ppm rawn3p08.png
-# -- gray with alpha-channel
-./pnm2png -alpha rawn6a08.pgm rawn4a08.pgm rawn4a08.png
-./pnm2png -alpha rawn6a16.pgm rawn4a16.pgm rawn4a16.png
-# -- color with alpha-channel
-./pnm2png -alpha rawn6a08.pgm rawn6a08.ppm rawn6a08.png
-./pnm2png -alpha rawn6a16.pgm rawn6a16.ppm rawn6a16.png
-
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/README b/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/README
deleted file mode 100644
index d236b02..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/README
+++ /dev/null
@@ -1,107 +0,0 @@
-
-pngsuite
---------
-Copyright (c) Willem van Schaik, 1999, 2011, 2012
-Two images (ftbbn0g01.png and ftbbn0g02.png) are by Glenn Randers-Pehrson, 2012
-
-Permission to use, copy, modify, and distribute these images for any
-purpose and without fee is hereby granted.
-
-The 15 "bas*.png" images are part of the much larger PngSuite test-set of
-images, available for developers of PNG supporting software. The
-complete set, available at http:/www.schaik.com/pngsuite/, contains
-a variety of images to test interlacing, gamma settings, ancillary
-chunks, etc.
-
-The "ft*.png" images are "free/libre" replacements for the transparent
-corresponding t*.png images in the PngSuite.
-
-The "i*.png" images are the same images, but interlaced.
-
-The images in this directory represent the basic PNG color-types:
-grayscale (1-16 bit deep), full color (8 or 16 bit), paletted
-(1-8 bit) and grayscale or color images with alpha channel. You
-can use them to test the proper functioning of PNG software.
-
- filename depth type
- ------------ ------ --------------
- basn0g01.png 1-bit grayscale
- basn0g02.png 2-bit grayscale
- basn0g04.png 4-bit grayscale
- basn0g08.png 8-bit grayscale
- basn0g16.png 16-bit grayscale
- basn2c08.png 8-bit truecolor
- basn2c16.png 16-bit truecolor
- basn3p01.png 1-bit paletted
- basn3p02.png 2-bit paletted
- basn3p04.png 4-bit paletted
- basn3p08.png 8-bit paletted
- basn4a08.png 8-bit gray with alpha
- basn4a16.png 16-bit gray with alpha
- basn6a08.png 8-bit RGBA
- basn6a16.png 16-bit RGBA
-
- ftbbn0g01.png 1-bit grayscale, black bKGD
- ftbbn0g02.png 2-bit grayscale, black bKGD
- ftbbn0g04.png 4-bit grayscale, black bKGD
- ftbbn2c16.png 16-bit truecolor, black bKGD
- ftbbn3p08.png 8-bit paletted, black bKGD
- ftbgn2c16.png 16-bit truecolor, gray bKGD
- ftbgn3p08.png 8-bit paletted, gray bKGD
- ftbrn2c08.png 8-bit truecolor, red bKGD
- ftbwn0g16.png 16-bit gray, white bKGD
- ftbwn3p08.png 8-bit paletted, white bKGD
- ftbyn3p08.png 8-bit paletted, yellow bKGD
- ftp0n0g08.png 8-bit grayscale, opaque
- ftp0n2c08.png 8-bit truecolor, opaque
- ftp0n3p08.png 8-bit paletted, opaque
- ftp1n3p08.png 8-bit paletted, no bKGD
-
-Here is the correct result of typing "pngtest -m bas*.png" in
-this directory:
-
-Testing basn0g01.png: PASS (524 zero samples)
- Filter 0 was used 32 times
-Testing basn0g02.png: PASS (448 zero samples)
- Filter 0 was used 32 times
-Testing basn0g04.png: PASS (520 zero samples)
- Filter 0 was used 32 times
-Testing basn0g08.png: PASS (3 zero samples)
- Filter 1 was used 9 times
- Filter 4 was used 23 times
-Testing basn0g16.png: PASS (1 zero samples)
- Filter 1 was used 1 times
- Filter 2 was used 31 times
-Testing basn2c08.png: PASS (6 zero samples)
- Filter 1 was used 5 times
- Filter 4 was used 27 times
-Testing basn2c16.png: PASS (592 zero samples)
- Filter 1 was used 1 times
- Filter 4 was used 31 times
-Testing basn3p01.png: PASS (512 zero samples)
- Filter 0 was used 32 times
-Testing basn3p02.png: PASS (448 zero samples)
- Filter 0 was used 32 times
-Testing basn3p04.png: PASS (544 zero samples)
- Filter 0 was used 32 times
-Testing basn3p08.png: PASS (4 zero samples)
- Filter 0 was used 32 times
-Testing basn4a08.png: PASS (32 zero samples)
- Filter 1 was used 1 times
- Filter 4 was used 31 times
-Testing basn4a16.png: PASS (64 zero samples)
- Filter 0 was used 1 times
- Filter 1 was used 2 times
- Filter 2 was used 1 times
- Filter 4 was used 28 times
-Testing basn6a08.png: PASS (160 zero samples)
- Filter 1 was used 1 times
- Filter 4 was used 31 times
-Testing basn6a16.png: PASS (1072 zero samples)
- Filter 1 was used 4 times
- Filter 4 was used 28 times
-libpng passes test
-
-Willem van Schaik
-<willem at schaik.com>
-October 1999
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/bad_interlace_conversions.txt b/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/bad_interlace_conversions.txt
deleted file mode 100644
index 8afbde7..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/bad_interlace_conversions.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-basn0g01.png
-basn0g02.png
-basn0g04.png
-basn3p01.png
-basn3p02.png
-basn3p04.png
-ftbbn0g01.png
-ftbbn0g02.png
-ftbbn0g04.png
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/basn0g01.png b/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/basn0g01.png
deleted file mode 100644
index e31e1c7..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/basn0g01.png
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/basn0g02.png b/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/basn0g02.png
deleted file mode 100644
index 68809dd..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/basn0g02.png
+++ /dev/null
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deleted file mode 100644
index 6fa089c..0000000
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diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/interlaced/README b/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/interlaced/README
deleted file mode 100644
index f171eee..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/interlaced/README
+++ /dev/null
@@ -1,2 +0,0 @@
-
-These images fail the "pngimage-quick" and "pngimage-full" tests.
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/interlaced/ibasn0g01.png b/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/interlaced/ibasn0g01.png
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+++ /dev/null
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diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/interlaced/iftbbn0g04.png b/3rdparty/libpng/libpng-1.6.37/contrib/pngsuite/interlaced/iftbbn0g04.png
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diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/powerpc-vsx/README b/3rdparty/libpng/libpng-1.6.37/contrib/powerpc-vsx/README
deleted file mode 100644
index 4970a52..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/powerpc-vsx/README
+++ /dev/null
@@ -1,81 +0,0 @@
-OPERATING SYSTEM SPECIFIC POWERPC DETECTION
---------------------------------------------
-
-Detection of the ability to execute POWERPC on processor requires
-operating system support. (The information is not available in user mode.)
-
-Currently only this feature is supported only for linux platform.
-
-HOW TO USE THIS
----------------
-
-This directory contains C code fragments that can be included in powerpc/powerpc_init.c
-by setting the macro PNG_POWERPC_VSX_FILE to the file name in "" or <> at build
-time. This setting is not recorded in pnglibconf.h and can be changed simply by
-rebuilding arm/arm_init.o with the required macro definition.
-
-For any of this code to be used the POWERPC code must be enabled and run time
-checks must be supported. I.e.:
-
-#if PNG_POWERPC_VSX_OPT > 0
-#ifdef PNG_POWERPC_VSX_CHECK_SUPPORTED
-
-This is done in a 'configure' build by passing configure the argument:
-
- --enable-powerpc-vsx=check
-
-FILE FORMAT
------------
-
-Each file documents its testing status as of the last time it was tested (which
-may have been a long time ago):
-
-STATUS: one of:
- SUPPORTED: This indicates that the file is included in the regularly
- performed test builds and bugs are fixed when discovered.
- COMPILED: This indicates that the code did compile at least once. See the
- more detailed description for the extent to which the result was
- successful.
- TESTED: This means the code was fully compiled into the libpng test programs
- and these were run at least once.
-
-BUG REPORTS: an email address to which to send reports of problems
-
-The file is a fragment of C code. It should not define any 'extern' symbols;
-everything should be static. It must define the function:
-
-static int png_have_vsx(png_structp png_ptr);
-
-That function must return 1 if POWERPC_VSX instructions are supported, 0 if not.
-It must not execute png_error unless it detects a bug. A png_error will prevent
-the reading of the PNG and in the future, writing too.
-
-BUG REPORTS
------------
-
-If you mail a bug report for any file that is not SUPPORTED there may only be
-limited response. Consider fixing it and sending a patch to fix the problem -
-this is more likely to result in action.
-
-CONTRIBUTIONS
--------------
-
-You may send contributions of new implementations to
-png-mng-implement@sourceforge.net. Please write code in strict C90 C where
-possible. Obviously OS dependencies are to be expected. If you submit code you
-must have the authors permission and it must have a license that is acceptable
-to the current maintainer; in particular that license must permit modification
-and redistribution.
-
-Please try to make the contribution a single file and give the file a clear and
-unambiguous name that identifies the target OS. If multiple files really are
-required put them all in a sub-directory.
-
-You must also be prepared to handle bug reports from users of the code, either
-by joining the png-mng-implement mailing list or by providing an email for the
-"BUG REPORTS" entry or both. Please make sure that the header of the file
-contains the STATUS and BUG REPORTS fields as above.
-
-Please list the OS requirements as precisely as possible. Ideally you should
-also list the environment in which the code has been tested and certainly list
-any environments where you suspect it might not work.
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/powerpc-vsx/linux.c b/3rdparty/libpng/libpng-1.6.37/contrib/powerpc-vsx/linux.c
deleted file mode 100644
index 32ed9d7..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/powerpc-vsx/linux.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/* contrib/powerpc-vsx/linux.c
- *
- * Copyright (c) 2017 Glenn Randers-Pehrson
- * Written by Vadim Barkov, 2017.
- * Last changed in libpng 1.6.29 [March 16, 2017]
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * STATUS: TESTED
- * BUG REPORTS: png-mng-implement@sourceforge.net
- *
- * png_have_vsx implemented for Linux by reading the widely available
- * pseudo-file /proc/cpuinfo.
- *
- * This code is strict ANSI-C and is probably moderately portable; it does
- * however use <stdio.h> and it assumes that /proc/cpuinfo is never localized.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include "png.h"
-
-#ifndef MAXLINE
-# define MAXLINE 1024
-#endif
-
-static int
-png_have_vsx(png_structp png_ptr)
-{
- FILE *f;
-
- const char *string = "altivec supported";
- char input[MAXLINE];
- char *token = NULL;
-
- PNG_UNUSED(png_ptr)
-
- f = fopen("/proc/cpuinfo", "r");
- if (f != NULL)
- {
- memset(input,0,MAXLINE);
- while(fgets(input,MAXLINE,f) != NULL)
- {
- token = strstr(input,string);
- if(token != NULL)
- return 1;
- }
- }
-#ifdef PNG_WARNINGS_SUPPORTED
- else
- png_warning(png_ptr, "/proc/cpuinfo open failed");
-#endif
- return 0;
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/powerpc-vsx/linux_aux.c b/3rdparty/libpng/libpng-1.6.37/contrib/powerpc-vsx/linux_aux.c
deleted file mode 100644
index 7828aca..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/powerpc-vsx/linux_aux.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/* contrib/powerpc-vsx/linux_aux.c
- *
- * Copyright (c) 2017 Glenn Randers-Pehrson
- * Written by Vadim Barkov, 2017.
- * Last changed in libpng 1.6.29 [March 16, 2017]
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * STATUS: TESTED
- * BUG REPORTS: png-mng-implement@sourceforge.net
- *
- * png_have_vsx implemented for Linux by using the auxiliary vector mechanism.
- *
- * This code is strict ANSI-C and is probably moderately portable; it does
- * however use <stdio.h> and it assumes that /proc/cpuinfo is never localized.
- */
-
-#include "sys/auxv.h"
-#include "png.h"
-
-static int
-png_have_vsx(png_structp png_ptr)
-{
- unsigned long auxv = getauxval(AT_HWCAP);
-
- PNG_UNUSED(png_ptr)
-
- if(auxv & (PPC_FEATURE_HAS_ALTIVEC|PPC_FEATURE_HAS_VSX))
- return 1;
- else
- return 0;
-}
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diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/testpngs/makepngs.sh b/3rdparty/libpng/libpng-1.6.37/contrib/testpngs/makepngs.sh
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--- a/3rdparty/libpng/libpng-1.6.37/contrib/testpngs/makepngs.sh
+++ /dev/null
@@ -1,94 +0,0 @@
-#!/bin/sh
-#
-# Make a set of test PNG files, MAKEPNG is the name of the makepng executable
-# built from contrib/libtests/makepng.c
-
-# Copyright (c) 2015 John Cunningham Bowler
-
-# Last changed in libpng 1.6.20 [December 3, 2015]
-
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# The arguments say whether to build all the files or whether just to build the
-# ones that extend the code-coverage of libpng from the existing test files in
-# contrib/pngsuite.
-test -n "$MAKEPNG" || MAKEPNG=./makepng
-opts=
-
-mp(){
- ${MAKEPNG} $opts $1 "$3" "$4" "$3-$4$2.png"
-}
-
-mpg(){
- if test "$1" = "none"
- then
- mp "" "" "$2" "$3"
- else
- mp "--$1" "-$1" "$2" "$3"
- fi
-}
-
-mptrans(){
- if test "$1" = "none"
- then
- mp "--tRNS" "-tRNS" "$2" "$3"
- else
- mp "--tRNS --$1" "-$1-tRNS" "$2" "$3"
- fi
-}
-
-case "$1" in
- --small)
- opts="--small";;&
-
- --all|--small)
- for g in none sRGB linear 1.8
- do
- for c in gray palette
- do
- for b in 1 2 4
- do
- mpg "$g" "$c" "$b"
- mptrans "$g" "$c" "$b"
- done
- done
-
- mpg "$g" palette 8
- mptrans "$g" palette 8
-
- for b in 8 16
- do
- for c in gray gray-alpha rgb rgb-alpha
- do
- mpg "$g" "$c" "$b"
- done
- for c in gray rgb
- do
- mptrans "$g" "$c" "$b"
- done
- done
- done;;
-
- --coverage)
- # Comments below indicate cases known to be required and not duplicated
- # in other (required) cases; the aim is to get a minimal set that gives
- # the maximum code coverage.
- mpg none gray-alpha 8 # required: code coverage, sRGB opaque component
- mpg none palette 8 # required: basic palette read
- mpg 1.8 gray 2 # required: tests gamma threshold code
- mpg 1.8 palette 2 # required: code coverage
- mpg 1.8 palette 4 # required: code coverage
- mpg 1.8 palette 8 # error limits only
- mpg linear palette 8 # error limits only
- mpg linear rgb-alpha 16 # error limits only
- mpg sRGB palette 1 # required: code coverage
- mpg sRGB rgb-alpha 16 # required: code coverage: pngread.c:2422 untested
- :;;
-
- *)
- echo "$0 $1: unknown argument, usage:" >&2
- echo " $0 [--all|--coverage|--small]" >&2
- exit 1
-esac
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diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/.deps/pngcp.Po b/3rdparty/libpng/libpng-1.6.37/contrib/tools/.deps/pngcp.Po
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-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno-base.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/assert.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/stat.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stat.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/.deps/pngfix.Po b/3rdparty/libpng/libpng-1.6.37/contrib/tools/.deps/pngfix.Po
deleted file mode 100644
index 7f32fc6..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/.deps/pngfix.Po
+++ /dev/null
@@ -1,162 +0,0 @@
-contrib/tools/pngfix.o: contrib/tools/pngfix.c \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/endian.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/endian.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/byteswap.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/select.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/select.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/sysmacros.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/pthreadtypes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/alloca.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/ctype.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix2_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/errno.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/errno.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/errno.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm/errno.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno-base.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/assert.h \
- contrib/tools/../../png.h contrib/tools/../../pnglibconf.h \
- contrib/tools/../../pngconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/getopt.h
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/endian.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/endian.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/byteswap.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/select.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/select.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/sysmacros.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/pthreadtypes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/alloca.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/ctype.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix2_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/asm-generic/errno-base.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/assert.h:
-
-contrib/tools/../../png.h:
-
-contrib/tools/../../pnglibconf.h:
-
-contrib/tools/../../pngconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/getopt.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/.dirstamp b/3rdparty/libpng/libpng-1.6.37/contrib/tools/.dirstamp
deleted file mode 100644
index e69de29..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/.dirstamp
+++ /dev/null
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/README.txt b/3rdparty/libpng/libpng-1.6.37/contrib/tools/README.txt
deleted file mode 100644
index f53be6d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/README.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-This directory (contrib/tools) contains tools used by the authors of libpng.
-
-Code and data placed in this directory is not required to build libpng,
-however the code in this directory has been used to generate data or code in
-the body of the libpng source. The source code identifies where this has
-been done. Code in this directory may not compile on all operating systems
-that libpng supports.
-
-NO COPYRIGHT RIGHTS ARE CLAIMED TO ANY OF THE FILES IN THIS DIRECTORY.
-
-To the extent possible under law, the authors have waived all copyright and
-related or neighboring rights to this work. This work is published from:
-United States.
-
-The files may be used freely in any way.
-
-The source code and comments in this directory are the original work of the
-people named below. No other person or organization has made contributions to
-the work in this directory.
-
-ORIGINAL AUTHORS
- The following people have contributed to the code in this directory. None
- of the people below claim any rights with regard to the contents of this
- directory.
-
- John Bowler <jbowler at acm.org>
- Glenn Randers-Pehrson <glennrp at users.sourceforge.net>
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/checksum-icc.c b/3rdparty/libpng/libpng-1.6.37/contrib/tools/checksum-icc.c
deleted file mode 100644
index 581e708..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/checksum-icc.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/* checksum-icc.c
- *
- * Copyright (c) 2013 John Cunningham Bowler
- *
- * Last changed in libpng 1.6.0 [February 14, 2013]
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Generate crc32 and adler32 checksums of the given input files, used to
- * generate check-codes for use when matching ICC profiles within libpng.
- */
-#include <stdio.h>
-
-#include <zlib.h>
-
-static int
-read_one_file(FILE *ip, const char *name)
-{
- uLong length = 0;
- uLong a32 = adler32(0, NULL, 0);
- uLong c32 = crc32(0, NULL, 0);
- Byte header[132];
-
- for (;;)
- {
- int ch = getc(ip);
- Byte b;
-
- if (ch == EOF) break;
-
- b = (Byte)ch;
-
- if (length < sizeof header)
- header[length] = b;
-
- ++length;
- a32 = adler32(a32, &b, 1);
- c32 = crc32(c32, &b, 1);
- }
-
- if (ferror(ip))
- return 0;
-
- /* Success */
- printf("PNG_ICC_CHECKSUM(0x%8.8lx, 0x%8.8lx,\n PNG_MD5("
- "0x%2.2x%2.2x%2.2x%2.2x, 0x%2.2x%2.2x%2.2x%2.2x, 0x%2.2x%2.2x%2.2x%2.2x,"
- " 0x%2.2x%2.2x%2.2x%2.2x), %d,\n"
- " \"%4.4d/%2.2d/%2.2d %2.2d:%2.2d:%2.2d\", %lu, \"%s\")\n",
- (unsigned long)a32, (unsigned long)c32,
- header[84], header[85], header[86], header[87],
- header[88], header[89], header[90], header[91],
- header[92], header[93], header[94], header[95],
- header[96], header[97], header[98], header[99],
-# define u16(x) (header[x] * 256 + header[x+1])
-# define u32(x) (u16(x) * 65536 + u16(x+2))
- u32(64), u16(24), u16(26), u16(28), u16(30), u16(32), u16(34),
- (unsigned long)length, name);
-
- return 1;
-}
-
-int main(int argc, char **argv)
-{
- int err = 0;
-
- printf("/* adler32, crc32, MD5[16], intent, date, length, file-name */\n");
-
- if (argc > 1)
- {
- int i;
-
- for (i=1; i<argc; ++i)
- {
- FILE *ip = fopen(argv[i], "rb");
-
- if (ip == NULL || !read_one_file(ip, argv[i]))
- {
- err = 1;
- perror(argv[i]);
- fprintf(stderr, "%s: read error\n", argv[i]);
- printf("/* ERROR: %s */\n", argv[i]);
- }
-
- (void)fclose(ip);
- }
- }
-
- else
- {
- if (!read_one_file(stdin, "-"))
- {
- err = 1;
- perror("stdin");
- fprintf(stderr, "stdin: read error\n");
- printf("/* ERROR: stdin */\n");
- }
- }
-
- return err;
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/chkfmt b/3rdparty/libpng/libpng-1.6.37/contrib/tools/chkfmt
deleted file mode 100755
index 95181fd..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/chkfmt
+++ /dev/null
@@ -1,144 +0,0 @@
-#!/bin/sh
-
-# chkfmt
-#
-# COPYRIGHT: Written by John Cunningham Bowler, 2010.
-# To the extent possible under law, the author has waived all copyright and
-# related or neighboring rights to this work. This work is published from:
-# United States.
-#
-# Check the format of the source files in the current directory - checks for a
-# line length of 80 characters max and no tab characters.
-#
-# Optionally arguments are files or directories to check.
-#
-# -v: output the long lines (makes fixing them easier)
-# -e: spawn an editor for each file that needs a change ($EDITOR must be
-# defined). When using -e the script MUST be run from an interactive
-# command line.
-verbose=
-edit=
-vers=
-test "$1" = "-v" && {
- shift
- verbose=yes
-}
-test "$1" = "-e" && {
- shift
- if test -n "$EDITOR"
- then
- edit=yes
-
- # Copy the standard streams for the editor
- exec 3>&0 4>&1 5>&2
- else
- echo "chkfmt -e: EDITOR must be defined" >&2
- exit 1
- fi
-}
-
-# Function to edit a single file - if the file isn't changed ask the user
-# whether or not to continue. This stuff only works if the script is run from
-# the command line (otherwise, don't specify -e or you will be sorry).
-doed(){
- cp "$file" "$file".orig
- "$EDITOR" "$file" 0>&3 1>&4 2>&5 3>&- 4>&- 5>&- || exit 1
- if cmp -s "$file".orig "$file"
- then
- rm "$file".orig
- echo -n "$file: file not changed, type anything to continue: " >&5
- read ans 0>&3
- test -n "$ans" || return 1
- fi
- return 0
-}
-
-# In beta versions the version string which appears in files can be a little
-# long and cause spuriously overlong lines. To avoid this substitute the version
-# string with a 'standard' version a.b.cc before checking for long lines.
-if test -r png.h
-then
- vers="`sed -n -e \
- 's/^#define PNG_LIBPNG_VER_STRING .\([0-9]\.[0-9]\.[0-9][0-9a-z]*\).$/\1/p' \
- png.h`"
- echo "chkfmt: checking version $vers"
-fi
-if test -z "$vers"
-then
- echo "chkfmt: png.h not found, ignoring version number" >&2
-fi
-
-test -n "$1" || set -- .
-find "$@" \( -type d \( -name '.git' -o -name '.libs' -o -name 'projects' \) \
- -prune \) -o \( -type f \
- ! -name '*.[oa]' ! -name '*.l[oa]' ! -name '*.png' ! -name '*.out' \
- ! -name '*.jpg' ! -name '*.patch' ! -name '*.obj' ! -name '*.exe' \
- ! -name '*.com' ! -name '*.tar.*' ! -name '*.zip' ! -name '*.ico' \
- ! -name '*.res' ! -name '*.rc' ! -name '*.mms' ! -name '*.rej' \
- ! -name '*.dsp' ! -name '*.orig' ! -name '*.dfn' ! -name '*.swp' \
- ! -name '~*' ! -name '*.3' \
- ! -name 'missing' ! -name 'mkinstalldirs' ! -name 'depcomp' \
- ! -name 'aclocal.m4' ! -name 'install-sh' ! -name 'Makefile.in' \
- ! -name 'ltmain.sh' ! -name 'config*' -print \) | {
- st=0
- while read file
- do
- case "$file" in
- *.mak|*[Mm]akefile.*|*[Mm]akefile)
- # Makefiles require tabs, dependency lines can be this long.
- check_tabs=
- line_length=100;;
- *.awk)
- # Includes literal tabs
- check_tabs=
- # The following is arbitrary
- line_length=132;;
- *contrib/*/*.[ch])
- check_tabs=yes
- line_length=96;;
- *)
- check_tabs=yes
- line_length=80;;
- esac
-
- # Note that vers can only contain 0-9, . and a-z
- if test -n "$vers"
- then
- sed -e "s/$vers/a.b.cc/g" "$file" >"$file".$$
- else
- cp "$file" "$file".$$
- fi
- splt="`fold -$line_length "$file".$$ | diff -c "$file".$$ -`"
- rm "$file".$$
-
- if test -n "$splt"
- then
- echo "$file: lines too long"
- st=1
- if test -n "$EDITOR" -a -n "$edit"
- then
- doed "$file" || exit 1
- elif test -n "$verbose"
- then
- echo "$splt"
- fi
- fi
- if test -n "$check_tabs"
- then
- tab="`tr -c -d '\t' <"$file"`"
- if test -n "$tab"
- then
- echo "$file: file contains tab characters"
- st=1
- if test -n "$EDITOR" -a -n "$edit"
- then
- doed "$file" || exit 1
- elif test -n "$verbose"
- then
- echo "$splt"
- fi
- fi
- fi
- done
- exit $st
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/cvtcolor.c b/3rdparty/libpng/libpng-1.6.37/contrib/tools/cvtcolor.c
deleted file mode 100644
index e6793c7..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/cvtcolor.c
+++ /dev/null
@@ -1,188 +0,0 @@
-/*-
- * convert.c
- *
- * Last changed in libpng 1.6.0 [February 14, 2013]
- *
- * COPYRIGHT: Written by John Cunningham Bowler, 2013.
- * To the extent possible under law, the author has waived all copyright and
- * related or neighboring rights to this work. This work is published from:
- * United States.
- *
- * Convert 8-bit sRGB or 16-bit linear values to another format.
- */
-#define _ISOC99_SOURCE 1
-
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <stdio.h>
-
-#include <fenv.h>
-
-#include "sRGB.h"
-
-static void
-usage(const char *prog)
-{
- fprintf(stderr,
- "%s: usage: %s [-linear|-sRGB] [-gray|-color] component{1,4}\n",
- prog, prog);
- exit(1);
-}
-
-unsigned long
-component(const char *prog, const char *arg, int issRGB)
-{
- char *ep;
- unsigned long c = strtoul(arg, &ep, 0);
-
- if (ep <= arg || *ep || c > 65535 || (issRGB && c > 255))
- {
- fprintf(stderr, "%s: %s: invalid component value (%lu)\n", prog, arg, c);
- usage(prog);
- }
-
- return c;
-}
-
-int
-main(int argc, const char **argv)
-{
- const char *prog = *argv++;
- int to_linear = 0, to_gray = 0, to_color = 0;
- int channels = 0;
- double c[4];
-
- /* FE_TONEAREST is the IEEE754 round to nearest, preferring even, mode; i.e.
- * everything rounds to the nearest value except that '.5' rounds to the
- * nearest even value.
- */
- fesetround(FE_TONEAREST);
-
- c[3] = c[2] = c[1] = c[0] = 0;
-
- while (--argc > 0 && **argv == '-')
- {
- const char *arg = 1+*argv++;
-
- if (strcmp(arg, "sRGB") == 0)
- to_linear = 0;
-
- else if (strcmp(arg, "linear") == 0)
- to_linear = 1;
-
- else if (strcmp(arg, "gray") == 0)
- to_gray = 1, to_color = 0;
-
- else if (strcmp(arg, "color") == 0)
- to_gray = 0, to_color = 1;
-
- else
- usage(prog);
- }
-
- switch (argc)
- {
- default:
- usage(prog);
- break;
-
- case 4:
- c[3] = component(prog, argv[3], to_linear);
- ++channels;
- case 3:
- c[2] = component(prog, argv[2], to_linear);
- ++channels;
- case 2:
- c[1] = component(prog, argv[1], to_linear);
- ++channels;
- case 1:
- c[0] = component(prog, argv[0], to_linear);
- ++channels;
- break;
- }
-
- if (to_linear)
- {
- int i;
- int components = channels;
-
- if ((components & 1) == 0)
- --components;
-
- for (i=0; i<components; ++i) c[i] = linear_from_sRGB(c[i] / 255);
- if (components < channels)
- c[components] = c[components] / 255;
- }
-
- else
- {
- int i;
- for (i=0; i<4; ++i) c[i] /= 65535;
-
- if ((channels & 1) == 0)
- {
- double alpha = c[channels-1];
-
- if (alpha > 0)
- for (i=0; i<channels-1; ++i) c[i] /= alpha;
- else
- for (i=0; i<channels-1; ++i) c[i] = 1;
- }
- }
-
- if (to_gray)
- {
- if (channels < 3)
- {
- fprintf(stderr, "%s: too few channels (%d) for -gray\n",
- prog, channels);
- usage(prog);
- }
-
- c[0] = YfromRGB(c[0], c[1], c[2]);
- channels -= 2;
- }
-
- if (to_color)
- {
- if (channels > 2)
- {
- fprintf(stderr, "%s: too many channels (%d) for -color\n",
- prog, channels);
- usage(prog);
- }
-
- c[3] = c[1]; /* alpha, if present */
- c[2] = c[1] = c[0];
- }
-
- if (to_linear)
- {
- int i;
- if ((channels & 1) == 0)
- {
- double alpha = c[channels-1];
- for (i=0; i<channels-1; ++i) c[i] *= alpha;
- }
-
- for (i=0; i<channels; ++i) c[i] = nearbyint(c[i] * 65535);
- }
-
- else /* to sRGB */
- {
- int i = (channels+1)&~1;
- while (--i >= 0)
- c[i] = sRGB_from_linear(c[i]);
-
- for (i=0; i<channels; ++i) c[i] = nearbyint(c[i] * 255);
- }
-
- {
- int i;
- for (i=0; i<channels; ++i) printf(" %g", c[i]);
- }
- printf("\n");
-
- return 0;
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/genpng.c b/3rdparty/libpng/libpng-1.6.37/contrib/tools/genpng.c
deleted file mode 100644
index 0b3f981..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/genpng.c
+++ /dev/null
@@ -1,881 +0,0 @@
-/*- genpng
- *
- * COPYRIGHT: Written by John Cunningham Bowler, 2015.
- * Revised by Glenn Randers-Pehrson, 2017, to add buffer-size check.
- * To the extent possible under law, the authors have waived all copyright and
- * related or neighboring rights to this work. This work is published from:
- * United States.
- *
- * Generate a PNG with an alpha channel, correctly.
- *
- * This is a test case generator; the resultant PNG files are only of interest
- * to those of us who care about whether the edges of circles are green, red,
- * or yellow.
- *
- * The program generates an RGB+Alpha PNG of a given size containing the given
- * shapes on a transparent background:
- *
- * genpng width height { shape }
- * shape ::= color width shape x1 y1 x2 y2
- *
- * 'color' is:
- *
- * black white red green yellow blue brown purple pink orange gray cyan
- *
- * The point is to have colors that are linguistically meaningful plus that old
- * bugbear of the department store dress murders, Cyan, the only color we argue
- * about.
- *
- * 'shape' is:
- *
- * circle: an ellipse
- * square: a rectangle
- * line: a straight line
- *
- * Each shape is followed by four numbers, these are two points in the output
- * coordinate space (as real numbers) which describe the circle, square, or
- * line. The shape is filled if it is preceded by 'filled' (not valid for
- * 'line') or is drawn with a line, in which case the width of the line must
- * precede the shape.
- *
- * The whole set of information can be repeated as many times as desired:
- *
- * shape ::= color width shape x1 y1 x2 y2
- *
- * color ::= black|white|red|green|yellow|blue
- * color ::= brown|purple|pink|orange|gray|cyan
- * width ::= filled
- * width ::= <number>
- * shape ::= circle|square|line
- * x1 ::= <number>
- * x2 ::= <number>
- * y1 ::= <number>
- * y2 ::= <number>
- *
- * The output PNG is generated by down-sampling a 4x supersampled image using
- * a bi-cubic filter. The bi-cubic has a 2 (output) pixel width, so an 8x8
- * array of super-sampled points contribute to each output pixel. The value of
- * a super-sampled point is found using an unfiltered, aliased, infinite
- * precision image: Each shape from the last to the first is checked to see if
- * the point is in the drawn area and, if it is, the color of the point is the
- * color of the shape and the alpha is 1, if not the previous shape is checked.
- *
- * This is an aliased algorithm because no filtering is done; a point is either
- * inside or outside each shape and 'close' points do not contribute to the
- * sample. The down-sampling is relied on to correct the error of not using
- * a filter.
- *
- * The line end-caps are 'flat'; they go through the points. The square line
- * joins are mitres; the outside of the lines are continued to the point of
- * intersection.
- */
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <math.h>
-
-/* Normally use <png.h> here to get the installed libpng, but this is done to
- * ensure the code picks up the local libpng implementation:
- */
-#include "../../png.h"
-
-#if defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) && defined(PNG_STDIO_SUPPORTED)
-
-static const struct color
-{
- const char *name;
- double red;
- double green;
- double blue;
-} colors[] =
-/* color ::= black|white|red|green|yellow|blue
- * color ::= brown|purple|pink|orange|gray|cyan
- */
-{
- { "black", 0, 0, 0 },
- { "white", 1, 1, 1 },
- { "red", 1, 0, 0 },
- { "green", 0, 1, 0 },
- { "yellow", 1, 1, 0 },
- { "blue", 0, 0, 1 },
- { "brown", .5, .125, 0 },
- { "purple", 1, 0, 1 },
- { "pink", 1, .5, .5 },
- { "orange", 1, .5, 0 },
- { "gray", 0, .5, .5 },
- { "cyan", 0, 1, 1 }
-};
-#define color_count ((sizeof colors)/(sizeof colors[0]))
-
-static const struct color *
-color_of(const char *arg)
-{
- int icolor = color_count;
-
- while (--icolor >= 0)
- {
- if (strcmp(colors[icolor].name, arg) == 0)
- return colors+icolor;
- }
-
- fprintf(stderr, "genpng: invalid color %s\n", arg);
- exit(1);
-}
-
-static double
-width_of(const char *arg)
-{
- if (strcmp(arg, "filled") == 0)
- return 0;
-
- else
- {
- char *ep = NULL;
- double w = strtod(arg, &ep);
-
- if (ep != NULL && *ep == 0 && w > 0)
- return w;
- }
-
- fprintf(stderr, "genpng: invalid line width %s\n", arg);
- exit(1);
-}
-
-static double
-coordinate_of(const char *arg)
-{
- char *ep = NULL;
- double w = strtod(arg, &ep);
-
- if (ep != NULL && *ep == 0)
- return w;
-
- fprintf(stderr, "genpng: invalid coordinate value %s\n", arg);
- exit(1);
-}
-
-struct arg; /* forward declaration */
-
-typedef int (*shape_fn_ptr)(const struct arg *arg, double x, double y);
- /* A function to determine if (x,y) is inside the shape.
- *
- * There are two implementations:
- *
- * inside_fn: returns true if the point is inside
- * check_fn: returns;
- * -1: the point is outside the shape by more than the filter width (2)
- * 0: the point may be inside the shape
- * +1: the point is inside the shape by more than the filter width
- */
-#define OUTSIDE (-1)
-#define INSIDE (1)
-
-struct arg
-{
- const struct color *color;
- shape_fn_ptr inside_fn;
- shape_fn_ptr check_fn;
- double width; /* line width, 0 for 'filled' */
- double x1, y1, x2, y2;
-};
-
-/* IMPLEMENTATION NOTE:
- *
- * We want the contribution of each shape to the sample corresponding to each
- * pixel. This could be obtained by super sampling the image to infinite
- * dimensions, finding each point within the shape and assigning that a value
- * '1' while leaving every point outside the shape with value '0' then
- * downsampling to the image size with sinc; computationally very expensive.
- *
- * Approximations are as follows:
- *
- * 1) If the pixel coordinate is within the shape assume the sample has the
- * shape color and is opaque, else assume there is no contribution from
- * the shape.
- *
- * This is the equivalent of aliased rendering or resampling an image with
- * a block filter. The maximum error in the calculated alpha (which will
- * always be 0 or 1) is 0.5.
- *
- * 2) If the shape is within a square of size 1x1 centered on the pixel assume
- * that the shape obscures an amount of the pixel equal to its area within
- * that square.
- *
- * This is the equivalent of 'pixel coverage' alpha calculation or resampling
- * an image with a bi-linear filter. The maximum error is over 0.2, but the
- * results are often acceptable.
- *
- * This can be approximated by applying (1) to a super-sampled image then
- * downsampling with a bi-linear filter. The error in the super-sampled
- * image is 0.5 per sample, but the resampling reduces this.
- *
- * 3) Use a better filter with a super-sampled image; in the limit this is the
- * sinc() approach.
- *
- * 4) Do the geometric calculation; a bivariate definite integral across the
- * shape, unfortunately this means evaluating Si(x), the integral of sinc(x),
- * which is still a lot of math.
- *
- * This code uses approach (3) with a bi-cubic filter and 8x super-sampling
- * and method (1) for the super-samples. This means that the sample is either
- * 0 or 1, depending on whether the sub-pixel is within or outside the shape.
- * The bi-cubic weights are also fixed and the 16 required weights are
- * pre-computed here (note that the 'scale' setting will need to be changed if
- * 'super' is increased).
- *
- * The code also calculates a sum to the edge of the filter. This is not
- * currently used by could be used to optimize the calculation.
- */
-#if 0 /* bc code */
-scale=10
-super=8
-define bicubic(x) {
- if (x <= 1) return (1.5*x - 2.5)*x*x + 1;
- if (x < 2) return (((2.5 - 0.5*x)*x - 4)*x + 2);
- return 0;
-}
-define sum(x) {
- auto s;
- s = 0;
- while (x < 2*super) {
- s = s + bicubic(x/super);
- x = x + 1;
- }
- return s;
-}
-define results(x) {
- auto b, s;
- b = bicubic(x/super);
- s = sum(x);
-
- print " /*", x, "*/ { ", b, ", ", s, " }";
- return 1;
-}
-x=0
-while (x<2*super) {
- x = x + results(x)
- if (x < 2*super) print ","
- print "\n"
-}
-quit
-#endif
-
-#define BICUBIC1(x) /* |x| <= 1 */ ((1.5*(x)* - 2.5)*(x)*(x) + 1)
-#define BICUBIC2(x) /* 1 < |x| < 2 */ (((2.5 - 0.5*(x))*(x) - 4)*(x) + 2)
-#define FILTER_WEIGHT 9 /* Twice the first sum below */
-#define FILTER_WIDTH 2 /* Actually half the width; -2..+2 */
-#define FILTER_STEPS 8 /* steps per filter unit */
-static const double
-bicubic[16][2] =
-{
- /* These numbers are exact; the weight for the filter is 1/9, but this
- * would make the numbers inexact, so it is not included here.
- */
- /* bicubic sum */
- /* 0*/ { 1.0000000000, 4.5000000000 },
- /* 1*/ { .9638671875, 3.5000000000 },
- /* 2*/ { .8671875000, 2.5361328125 },
- /* 3*/ { .7275390625, 1.6689453125 },
- /* 4*/ { .5625000000, .9414062500 },
- /* 5*/ { .3896484375, .3789062500 },
- /* 6*/ { .2265625000, -.0107421875 },
- /* 7*/ { .0908203125, -.2373046875 },
- /* 8*/ { 0, -.3281250000 },
- /* 9*/ { -.0478515625, -.3281250000 },
- /*10*/ { -.0703125000, -.2802734375 },
- /*11*/ { -.0732421875, -.2099609375 },
- /*12*/ { -.0625000000, -.1367187500 },
- /*13*/ { -.0439453125, -.0742187500 },
- /*14*/ { -.0234375000, -.0302734375 },
- /*15*/ { -.0068359375, -.0068359375 }
-};
-
-static double
-alpha_calc(const struct arg *arg, double x, double y)
-{
- /* For [x-2..x+2],[y-2,y+2] calculate the weighted bicubic given a function
- * which tells us whether a point is inside or outside the shape. First
- * check if we need to do this at all:
- */
- switch (arg->check_fn(arg, x, y))
- {
- case OUTSIDE:
- return 0; /* all samples outside the shape */
-
- case INSIDE:
- return 1; /* all samples inside the shape */
-
- default:
- {
- int dy;
- double alpha = 0;
-
-# define FILTER_D (FILTER_WIDTH*FILTER_STEPS-1)
- for (dy=-FILTER_D; dy<=FILTER_D; ++dy)
- {
- double wy = bicubic[abs(dy)][0];
-
- if (wy != 0)
- {
- double alphay = 0;
- int dx;
-
- for (dx=-FILTER_D; dx<=FILTER_D; ++dx)
- {
- double wx = bicubic[abs(dx)][0];
-
- if (wx != 0 && arg->inside_fn(arg, x+dx/16, y+dy/16))
- alphay += wx;
- }
-
- alpha += wy * alphay;
- }
- }
-
- /* This needs to be weighted for each dimension: */
- return alpha / (FILTER_WEIGHT*FILTER_WEIGHT);
- }
- }
-}
-
-/* These are the shape functions. */
-/* "square",
- * { inside_square_filled, check_square_filled },
- * { inside_square, check_square }
- */
-static int
-square_check(double x, double y, double x1, double y1, double x2, double y2)
- /* Is x,y inside the square (x1,y1)..(x2,y2)? */
-{
- /* Do a modified Cohen-Sutherland on one point, bit patterns that indicate
- * 'outside' are:
- *
- * x<x1 | x<y1 | x<x2 | x<y2
- * 0 x 0 x To the right
- * 1 x 1 x To the left
- * x 0 x 0 Below
- * x 1 x 1 Above
- *
- * So 'inside' is (x<x1) != (x<x2) && (y<y1) != (y<y2);
- */
- return ((x<x1) ^ (x<x2)) & ((y<y1) ^ (y<y2));
-}
-
-static int
-inside_square_filled(const struct arg *arg, double x, double y)
-{
- return square_check(x, y, arg->x1, arg->y1, arg->x2, arg->y2);
-}
-
-static int
-square_check_line(const struct arg *arg, double x, double y, double w)
- /* Check for a point being inside the boundaries implied by the given arg
- * and assuming a width 2*w each side of the boundaries. This returns the
- * 'check' INSIDE/OUTSIDE/0 result but note the semantics:
- *
- * +--------------+
- * | | OUTSIDE
- * | INSIDE |
- * | |
- * +--------------+
- *
- * And '0' means within the line boundaries.
- */
-{
- double cx = (arg->x1+arg->x2)/2;
- double wx = fabs(arg->x1-arg->x2)/2;
- double cy = (arg->y1+arg->y2)/2;
- double wy = fabs(arg->y1-arg->y2)/2;
-
- if (square_check(x, y, cx-wx-w, cy-wy-w, cx+wx+w, cy+wy+w))
- {
- /* Inside, but maybe too far; check for the redundant case where
- * the lines overlap:
- */
- wx -= w;
- wy -= w;
- if (wx > 0 && wy > 0 && square_check(x, y, cx-wx, cy-wy, cx+wx, cy+wy))
- return INSIDE; /* between (inside) the boundary lines. */
-
- return 0; /* inside the lines themselves. */
- }
-
- return OUTSIDE; /* outside the boundary lines. */
-}
-
-static int
-check_square_filled(const struct arg *arg, double x, double y)
-{
- /* The filter extends +/-FILTER_WIDTH each side of each output point, so
- * the check has to expand and contract the square by that amount; '0'
- * means close enough to the edge of the square that the bicubic filter has
- * to be run, OUTSIDE means alpha==0, INSIDE means alpha==1.
- */
- return square_check_line(arg, x, y, FILTER_WIDTH);
-}
-
-static int
-inside_square(const struct arg *arg, double x, double y)
-{
- /* Return true if within the drawn lines, else false, no need to distinguish
- * INSIDE vs OUTSIDE here:
- */
- return square_check_line(arg, x, y, arg->width/2) == 0;
-}
-
-static int
-check_square(const struct arg *arg, double x, double y)
-{
- /* So for this function a result of 'INSIDE' means inside the actual lines.
- */
- double w = arg->width/2;
-
- if (square_check_line(arg, x, y, w+FILTER_WIDTH) == 0)
- {
- /* Somewhere close to the boundary lines. If far enough inside one of
- * them then we can return INSIDE:
- */
- w -= FILTER_WIDTH;
-
- if (w > 0 && square_check_line(arg, x, y, w) == 0)
- return INSIDE;
-
- /* Point is somewhere in the filter region: */
- return 0;
- }
-
- else /* Inside or outside the square by more than w+FILTER_WIDTH. */
- return OUTSIDE;
-}
-
-/* "circle",
- * { inside_circle_filled, check_circle_filled },
- * { inside_circle, check_circle }
- *
- * The functions here are analoguous to the square ones; however, they check
- * the corresponding ellipse as opposed to the rectangle.
- */
-static int
-circle_check(double x, double y, double x1, double y1, double x2, double y2)
-{
- if (square_check(x, y, x1, y1, x2, y2))
- {
- /* Inside the square, so maybe inside the circle too: */
- const double cx = (x1 + x2)/2;
- const double cy = (y1 + y2)/2;
- const double dx = x1 - x2;
- const double dy = y1 - y2;
-
- x = (x - cx)/dx;
- y = (y - cy)/dy;
-
- /* It is outside if the distance from the center is more than half the
- * diameter:
- */
- return x*x+y*y < .25;
- }
-
- return 0; /* outside */
-}
-
-static int
-inside_circle_filled(const struct arg *arg, double x, double y)
-{
- return circle_check(x, y, arg->x1, arg->y1, arg->x2, arg->y2);
-}
-
-static int
-circle_check_line(const struct arg *arg, double x, double y, double w)
- /* Check for a point being inside the boundaries implied by the given arg
- * and assuming a width 2*w each side of the boundaries. This function has
- * the same semantic as square_check_line but tests the circle.
- */
-{
- double cx = (arg->x1+arg->x2)/2;
- double wx = fabs(arg->x1-arg->x2)/2;
- double cy = (arg->y1+arg->y2)/2;
- double wy = fabs(arg->y1-arg->y2)/2;
-
- if (circle_check(x, y, cx-wx-w, cy-wy-w, cx+wx+w, cy+wy+w))
- {
- /* Inside, but maybe too far; check for the redundant case where
- * the lines overlap:
- */
- wx -= w;
- wy -= w;
- if (wx > 0 && wy > 0 && circle_check(x, y, cx-wx, cy-wy, cx+wx, cy+wy))
- return INSIDE; /* between (inside) the boundary lines. */
-
- return 0; /* inside the lines themselves. */
- }
-
- return OUTSIDE; /* outside the boundary lines. */
-}
-
-static int
-check_circle_filled(const struct arg *arg, double x, double y)
-{
- return circle_check_line(arg, x, y, FILTER_WIDTH);
-}
-
-static int
-inside_circle(const struct arg *arg, double x, double y)
-{
- return circle_check_line(arg, x, y, arg->width/2) == 0;
-}
-
-static int
-check_circle(const struct arg *arg, double x, double y)
-{
- /* Exactly as the 'square' code. */
- double w = arg->width/2;
-
- if (circle_check_line(arg, x, y, w+FILTER_WIDTH) == 0)
- {
- w -= FILTER_WIDTH;
-
- if (w > 0 && circle_check_line(arg, x, y, w) == 0)
- return INSIDE;
-
- /* Point is somewhere in the filter region: */
- return 0;
- }
-
- else /* Inside or outside the square by more than w+FILTER_WIDTH. */
- return OUTSIDE;
-}
-
-/* "line",
- * { NULL, NULL }, There is no 'filled' line.
- * { inside_line, check_line }
- */
-static int
-line_check(double x, double y, double x1, double y1, double x2, double y2,
- double w, double expand)
-{
- /* Shift all the points to (arg->x1, arg->y1) */
- double lx = x2 - x1;
- double ly = y2 - y1;
- double len2 = lx*lx + ly*ly;
- double cross, dot;
-
- x -= x1;
- y -= y1;
-
- /* The dot product is the distance down the line, the cross product is
- * the distance away from the line:
- *
- * distance = |cross| / sqrt(len2)
- */
- cross = x * ly - y * lx;
-
- /* If 'distance' is more than w the point is definitely outside the line:
- *
- * distance >= w
- * |cross| >= w * sqrt(len2)
- * cross^2 >= w^2 * len2:
- */
- if (cross*cross >= (w+expand)*(w+expand)*len2)
- return 0; /* outside */
-
- /* Now find the distance *along* the line; this comes from the dot product
- * lx.x+ly.y. The actual distance (in pixels) is:
- *
- * distance = dot / sqrt(len2)
- */
- dot = lx * x + ly * y;
-
- /* The test for 'outside' is:
- *
- * distance < 0 || distance > sqrt(len2)
- * -> dot / sqrt(len2) > sqrt(len2)
- * -> dot > len2
- *
- * But 'expand' is used for the filter width and needs to be handled too:
- */
- return dot > -expand && dot < len2+expand;
-}
-
-static int
-inside_line(const struct arg *arg, double x, double y)
-{
- return line_check(x, y, arg->x1, arg->y1, arg->x2, arg->y2, arg->width/2, 0);
-}
-
-static int
-check_line(const struct arg *arg, double x, double y)
-{
- /* The end caps of the line must be checked too; it's not enough just to
- * widen the line by FILTER_WIDTH; 'expand' exists for this purpose:
- */
- if (line_check(x, y, arg->x1, arg->y1, arg->x2, arg->y2, arg->width/2,
- FILTER_WIDTH))
- {
- /* Inside the line+filter; far enough inside that the filter isn't
- * required?
- */
- if (arg->width > 2*FILTER_WIDTH &&
- line_check(x, y, arg->x1, arg->y1, arg->x2, arg->y2, arg->width/2,
- -FILTER_WIDTH))
- return INSIDE;
-
- return 0;
- }
-
- return OUTSIDE;
-}
-
-static const struct
-{
- const char *name;
- shape_fn_ptr function[2/*fill,line*/][2];
-# define FN_INSIDE 0
-# define FN_CHECK 1
-} shape_defs[] =
-{
- { "square",
- { { inside_square_filled, check_square_filled },
- { inside_square, check_square } }
- },
- { "circle",
- { { inside_circle_filled, check_circle_filled },
- { inside_circle, check_circle } }
- },
- { "line",
- { { NULL, NULL },
- { inside_line, check_line } }
- }
-};
-
-#define shape_count ((sizeof shape_defs)/(sizeof shape_defs[0]))
-
-static shape_fn_ptr
-shape_of(const char *arg, double width, int f)
-{
- unsigned int i;
-
- for (i=0; i<shape_count; ++i) if (strcmp(shape_defs[i].name, arg) == 0)
- {
- shape_fn_ptr fn = shape_defs[i].function[width != 0][f];
-
- if (fn != NULL)
- return fn;
-
- fprintf(stderr, "genpng: %s %s not supported\n",
- width == 0 ? "filled" : "unfilled", arg);
- exit(1);
- }
-
- fprintf(stderr, "genpng: %s: not a valid shape name\n", arg);
- exit(1);
-}
-
-static void
-parse_arg(struct arg *arg, const char **argv/*7 arguments*/)
-{
- /* shape ::= color width shape x1 y1 x2 y2 */
- arg->color = color_of(argv[0]);
- arg->width = width_of(argv[1]);
- arg->inside_fn = shape_of(argv[2], arg->width, FN_INSIDE);
- arg->check_fn = shape_of(argv[2], arg->width, FN_CHECK);
- arg->x1 = coordinate_of(argv[3]);
- arg->y1 = coordinate_of(argv[4]);
- arg->x2 = coordinate_of(argv[5]);
- arg->y2 = coordinate_of(argv[6]);
-}
-
-static png_uint_32
-read_wh(const char *name, const char *str)
- /* read a PNG width or height */
-{
- char *ep = NULL;
- unsigned long ul = strtoul(str, &ep, 10);
-
- if (ep != NULL && *ep == 0 && ul > 0 && ul <= 0x7fffffff)
- return (png_uint_32)/*SAFE*/ul;
-
- fprintf(stderr, "genpng: %s: invalid number %s\n", name, str);
- exit(1);
-}
-
-static void
-pixel(png_uint_16p p, struct arg *args, int nargs, double x, double y)
-{
- /* Fill in the pixel by checking each shape (args[nargs]) for effects on
- * the corresponding sample:
- */
- double r=0, g=0, b=0, a=0;
-
- while (--nargs >= 0 && a != 1)
- {
- /* NOTE: alpha_calc can return a value outside the range 0..1 with the
- * bicubic filter.
- */
- const double alpha = alpha_calc(args+nargs, x, y) * (1-a);
-
- r += alpha * args[nargs].color->red;
- g += alpha * args[nargs].color->green;
- b += alpha * args[nargs].color->blue;
- a += alpha;
- }
-
- /* 'a' may be negative or greater than 1; if it is, negative clamp the
- * pixel to 0 if >1 clamp r/g/b:
- */
- if (a > 0)
- {
- if (a > 1)
- {
- if (r > 1) r = 1;
- if (g > 1) g = 1;
- if (b > 1) b = 1;
- a = 1;
- }
-
- /* And fill in the pixel: */
- p[0] = (png_uint_16)/*SAFE*/round(r * 65535);
- p[1] = (png_uint_16)/*SAFE*/round(g * 65535);
- p[2] = (png_uint_16)/*SAFE*/round(b * 65535);
- p[3] = (png_uint_16)/*SAFE*/round(a * 65535);
- }
-
- else
- p[3] = p[2] = p[1] = p[0] = 0;
-}
-
-int
-main(int argc, const char **argv)
-{
- int convert_to_8bit = 0;
-
- /* There is one option: --8bit: */
- if (argc > 1 && strcmp(argv[1], "--8bit") == 0)
- --argc, ++argv, convert_to_8bit = 1;
-
- if (argc >= 3)
- {
- png_uint_16p buffer;
- int nshapes;
- png_image image;
-# define max_shapes 256
- struct arg arg_list[max_shapes];
-
- /* The libpng Simplified API write code requires a fully initialized
- * structure.
- */
- memset(&image, 0, sizeof image);
- image.version = PNG_IMAGE_VERSION;
- image.opaque = NULL;
- image.width = read_wh("width", argv[1]);
- image.height = read_wh("height", argv[2]);
- image.format = PNG_FORMAT_LINEAR_RGB_ALPHA;
- image.flags = 0;
- image.colormap_entries = 0;
-
- /* Check the remainder of the arguments */
- for (nshapes=0; 3+7*(nshapes+1) <= argc && nshapes < max_shapes;
- ++nshapes)
- parse_arg(arg_list+nshapes, argv+3+7*nshapes);
-
- if (3+7*nshapes != argc)
- {
- fprintf(stderr, "genpng: %s: too many arguments\n", argv[3+7*nshapes]);
- return 1;
- }
-
-#if 1
- /* TO do: determine whether this guard against overflow is necessary.
- * This comment in png.h indicates that it should be safe: "libpng will
- * refuse to process an image where such an overflow would occur", but
- * I don't see where the image gets rejected when the buffer is too
- * large before the malloc is attempted.
- */
- if (image.height > ((size_t)(-1))/(8*image.width)) {
- fprintf(stderr, "genpng: image buffer would be too big");
- return 1;
- }
-#endif
-
- /* Create the buffer: */
- buffer = malloc(PNG_IMAGE_SIZE(image));
-
- if (buffer != NULL)
- {
- png_uint_32 y;
-
- /* Write each row... */
- for (y=0; y<image.height; ++y)
- {
- png_uint_32 x;
-
- /* Each pixel in each row: */
- for (x=0; x<image.width; ++x)
- pixel(buffer + 4*(x + y*image.width), arg_list, nshapes, x, y);
- }
-
- /* Write the result (to stdout) */
- if (png_image_write_to_stdio(&image, stdout, convert_to_8bit,
- buffer, 0/*row_stride*/, NULL/*colormap*/))
- {
- free(buffer);
- return 0; /* success */
- }
-
- else
- fprintf(stderr, "genpng: write stdout: %s\n", image.message);
-
- free(buffer);
- }
-
- else
- fprintf(stderr, "genpng: out of memory: %lu bytes\n",
- (unsigned long)PNG_IMAGE_SIZE(image));
- }
-
- else
- {
- /* Wrong number of arguments */
- fprintf(stderr, "genpng: usage: genpng [--8bit] width height {shape}\n"
- " Generate a transparent PNG in RGBA (truecolor+alpha) format\n"
- " containing the given shape or shapes. Shapes are defined:\n"
- "\n"
- " shape ::= color width shape x1 y1 x2 y2\n"
- " color ::= black|white|red|green|yellow|blue\n"
- " color ::= brown|purple|pink|orange|gray|cyan\n"
- " width ::= filled|<number>\n"
- " shape ::= circle|square|line\n"
- " x1,x2 ::= <number>\n"
- " y1,y2 ::= <number>\n"
- "\n"
- " Numbers are floating point numbers describing points relative to\n"
- " the top left of the output PNG as pixel coordinates. The 'width'\n"
- " parameter is either the width of the line (in output pixels) used\n"
- " to draw the shape or 'filled' to indicate that the shape should\n"
- " be filled with the color.\n"
- "\n"
- " Colors are interpreted loosely to give access to the eight full\n"
- " intensity RGB values:\n"
- "\n"
- " black, red, green, blue, yellow, cyan, purple, white,\n"
- "\n"
- " Cyan is full intensity blue+green; RGB(0,1,1), plus the following\n"
- " lower intensity values:\n"
- "\n"
- " brown: red+orange: RGB(0.5, 0.125, 0) (dark red+orange)\n"
- " pink: red+white: RGB(1.0, 0.5, 0.5)\n"
- " orange: red+yellow: RGB(1.0, 0.5, 0)\n"
- " gray: black+white: RGB(0.5, 0.5, 0.5)\n"
- "\n"
- " The RGB values are selected to make detection of aliasing errors\n"
- " easy. The names are selected to make the description of errors\n"
- " easy.\n"
- "\n"
- " The PNG is written to stdout, if --8bit is given a 32bpp RGBA sRGB\n"
- " file is produced, otherwise a 64bpp RGBA linear encoded file is\n"
- " written.\n");
- }
-
- return 1;
-}
-#endif /* SIMPLIFIED_WRITE && STDIO */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/intgamma.sh b/3rdparty/libpng/libpng-1.6.37/contrib/tools/intgamma.sh
deleted file mode 100755
index 41c5d6d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/intgamma.sh
+++ /dev/null
@@ -1,110 +0,0 @@
-#!/bin/sh
-#
-# intgamma.sh
-#
-# Last changed in libpng 1.6.0 [February 14, 2013]
-#
-# COPYRIGHT: Written by John Cunningham Bowler, 2013.
-# To the extent possible under law, the author has waived all copyright and
-# related or neighboring rights to this work. This work is published from:
-# United States.
-#
-# Shell script to generate png.c 8-bit and 16-bit log tables (see the code in
-# png.c for details).
-#
-# This script uses the "bc" arbitrary precision calculator to calculate 32-bit
-# fixed point values of logarithms appropriate to finding the log of an 8-bit
-# (0..255) value and a similar table for the exponent calculation.
-#
-# "bc" must be on the path when the script is executed, and the math library
-# (-lm) must be available
-#
-# function to print out a list of numbers as integers; the function truncates
-# the integers which must be one-per-line
-function print(){
- awk 'BEGIN{
- str = ""
- }
- {
- sub("\\.[0-9]*$", "")
- if ($0 == "")
- $0 = "0"
-
- if (str == "")
- t = " " $0 "U"
- else
- t = str ", " $0 "U"
-
- if (length(t) >= 80) {
- print str ","
- str = " " $0 "U"
- } else
- str = t
- }
- END{
- print str
- }'
-}
-#
-# The logarithm table.
-cat <<END
-/* 8-bit log table: png_8bit_l2[128]
- * This is a table of -log(value/255)/log(2) for 'value' in the range 128 to
- * 255, so it's the base 2 logarithm of a normalized 8-bit floating point
- * mantissa. The numbers are 32-bit fractions.
- */
-static const png_uint_32
-png_8bit_l2[128] =
-{
-END
-#
-bc -lqws <<END | print
-f=65536*65536/l(2)
-for (i=128;i<256;++i) { .5 - l(i/255)*f; }
-END
-echo '};'
-echo
-#
-# The exponent table.
-cat <<END
-/* The 'exp()' case must invert the above, taking a 20-bit fixed point
- * logarithmic value and returning a 16 or 8-bit number as appropriate. In
- * each case only the low 16 bits are relevant - the fraction - since the
- * integer bits (the top 4) simply determine a shift.
- *
- * The worst case is the 16-bit distinction between 65535 and 65534; this
- * requires perhaps spurious accuracy in the decoding of the logarithm to
- * distinguish log2(65535/65534.5) - 10^-5 or 17 bits. There is little chance
- * of getting this accuracy in practice.
- *
- * To deal with this the following exp() function works out the exponent of the
- * frational part of the logarithm by using an accurate 32-bit value from the
- * top four fractional bits then multiplying in the remaining bits.
- */
-static const png_uint_32
-png_32bit_exp[16] =
-{
-END
-#
-bc -lqws <<END | print
-f=l(2)/16
-for (i=0;i<16;++i) {
- x = .5 + e(-i*f)*2^32;
- if (x >= 2^32) x = 2^32-1;
- x;
-}
-END
-echo '};'
-echo
-#
-# And the table of adjustment values.
-cat <<END
-/* Adjustment table; provided to explain the numbers in the code below. */
-#if 0
-END
-bc -lqws <<END | awk '{ printf "%5d %s\n", 12-NR, $0 }'
-for (i=11;i>=0;--i){
- (1 - e(-(2^i)/65536*l(2))) * 2^(32-i)
-}
-END
-echo '#endif'
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/makesRGB.c b/3rdparty/libpng/libpng-1.6.37/contrib/tools/makesRGB.c
deleted file mode 100644
index d0c0ca9..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/makesRGB.c
+++ /dev/null
@@ -1,430 +0,0 @@
-/* makesRGB.c -- build sRGB-to-linear and linear-to-sRGB conversion tables
- *
- * Last changed in libpng 1.6.0 [February 14, 2013]
- *
- * COPYRIGHT: Written by John Cunningham Bowler, 2013.
- * To the extent possible under law, the author has waived all copyright and
- * related or neighboring rights to this work. This work is published from:
- * United States.
- *
- * Make a table to convert 8-bit sRGB encoding values into the closest 16-bit
- * linear value.
- *
- * Make two tables to take a linear value scaled to 255*65535 and return an
- * approximation to the 8-bit sRGB encoded value. Calculate the error in these
- * tables and display it.
- */
-#define _C99_SOURCE 1
-#include <stdio.h>
-#include <math.h>
-#include <stdlib.h>
-
-/* pngpriv.h includes the definition of 'PNG_sRGB_FROM_LINEAR' which is required
- * to verify the actual code.
- */
-#include "../../pngpriv.h"
-
-#include "sRGB.h"
-
-/* The tables are declared 'const' in pngpriv.h, so this redefines the tables to
- * be used.
- */
-#define png_sRGB_table sRGB_table
-#define png_sRGB_base sRGB_base
-#define png_sRGB_delta sRGB_delta
-
-static png_uint_16 png_sRGB_table[256];
-static png_uint_16 png_sRGB_base[512];
-static png_byte png_sRGB_delta[512];
-
-static const unsigned int max_input = 255*65535;
-
-double
-fsRGB(double l)
-{
- return sRGB_from_linear(l/max_input);
-}
-
-double
-sRGB(unsigned int i)
-{
- return fsRGB(i);
-}
-
-double
-finvsRGB(unsigned int i)
-{
- return 65535 * linear_from_sRGB(i/255.);
-}
-
-png_uint_16
-invsRGB(unsigned int i)
-{
- unsigned int x = nearbyint(finvsRGB(i));
-
- if (x > 65535)
- {
- fprintf(stderr, "invsRGB(%u) overflows to %u\n", i, x);
- exit(1);
- }
-
- return (png_uint_16)x;
-}
-
-int
-main(int argc, char **argv)
-{
- unsigned int i, i16, ibase;
- double min_error = 0;
- double max_error = 0;
- double min_error16 = 0;
- double max_error16 = 0;
- double adjust;
- double adjust_lo = 0.4, adjust_hi = 0.6, adjust_mid = 0.5;
- unsigned int ec_lo = 0, ec_hi = 0, ec_mid = 0;
- unsigned int error_count = 0;
- unsigned int error_count16 = 0;
- int test_only = 0;
-
- if (argc > 1)
- test_only = strcmp("--test", argv[1]) == 0;
-
- /* Initialize the encoding table first. */
- for (i=0; i<256; ++i)
- {
- png_sRGB_table[i] = invsRGB(i);
- }
-
- /* Now work out the decoding tables (this is where the error comes in because
- * there are 512 set points and 512 straight lines between them.)
- */
- for (;;)
- {
- if (ec_lo == 0)
- adjust = adjust_lo;
-
- else if (ec_hi == 0)
- adjust = adjust_hi;
-
- else if (ec_mid == 0)
- adjust = adjust_mid;
-
- else if (ec_mid < ec_hi)
- adjust = (adjust_mid + adjust_hi)/2;
-
- else if (ec_mid < ec_lo)
- adjust = (adjust_mid + adjust_lo)/2;
-
- else
- {
- fprintf(stderr, "not reached: %u .. %u .. %u\n", ec_lo, ec_mid, ec_hi);
- exit(1);
- }
-
- /* Calculate the table using the current 'adjust' */
- for (i=0; i<=511; ++i)
- {
- double lo = 255 * sRGB(i << 15);
- double hi = 255 * sRGB((i+1) << 15);
- unsigned int calc;
-
- calc = nearbyint((lo+adjust) * 256);
- if (calc > 65535)
- {
- fprintf(stderr, "table[%d][0]: overflow %08x (%d)\n", i, calc,
- calc);
- exit(1);
- }
- png_sRGB_base[i] = calc;
-
- calc = nearbyint((hi-lo) * 32);
- if (calc > 255)
- {
- fprintf(stderr, "table[%d][1]: overflow %08x (%d)\n", i, calc,
- calc);
- exit(1);
- }
- png_sRGB_delta[i] = calc;
- }
-
- /* Check the 16-bit linear values alone: */
- error_count16 = 0;
- for (i16=0; i16 <= 65535; ++i16)
- {
- unsigned int i = 255*i16;
- unsigned int iexact = nearbyint(255*sRGB(i));
- unsigned int icalc = PNG_sRGB_FROM_LINEAR(i);
-
- if (icalc != iexact)
- ++error_count16;
- }
-
- /* Now try changing the adjustment. */
- if (ec_lo == 0)
- ec_lo = error_count16;
-
- else if (ec_hi == 0)
- ec_hi = error_count16;
-
- else if (ec_mid == 0)
- {
- ec_mid = error_count16;
- printf("/* initial error counts: %u .. %u .. %u */\n", ec_lo, ec_mid,
- ec_hi);
- }
-
- else if (error_count16 < ec_mid)
- {
- printf("/* adjust (mid ): %f: %u -> %u */\n", adjust, ec_mid,
- error_count16);
- ec_mid = error_count16;
- adjust_mid = adjust;
- }
-
- else if (adjust < adjust_mid && error_count16 < ec_lo)
- {
- printf("/* adjust (low ): %f: %u -> %u */\n", adjust, ec_lo,
- error_count16);
- ec_lo = error_count16;
- adjust_lo = adjust;
- }
-
- else if (adjust > adjust_mid && error_count16 < ec_hi)
- {
- printf("/* adjust (high): %f: %u -> %u */\n", adjust, ec_hi,
- error_count16);
- ec_hi = error_count16;
- adjust_hi = adjust;
- }
-
- else
- {
- adjust = adjust_mid;
- printf("/* adjust: %f: %u */\n", adjust, ec_mid);
- break;
- }
- }
-
- /* For each entry in the table try to adjust it to minimize the error count
- * in that entry. Each entry corresponds to 128 input values.
- */
- for (ibase=0; ibase<65536; ibase+=128)
- {
- png_uint_16 base = png_sRGB_base[ibase >> 7], trybase = base, ob=base;
- png_byte delta = png_sRGB_delta[ibase >> 7], trydelta = delta, od=delta;
- unsigned int ecbase = 0, eco;
-
- for (;;)
- {
- png_sRGB_base[ibase >> 7] = trybase;
- png_sRGB_delta[ibase >> 7] = trydelta;
-
- /* Check the 16-bit linear values alone: */
- error_count16 = 0;
- for (i16=ibase; i16 < ibase+128; ++i16)
- {
- unsigned int i = 255*i16;
- unsigned int iexact = nearbyint(255*sRGB(i));
- unsigned int icalc = PNG_sRGB_FROM_LINEAR(i);
-
- if (icalc != iexact)
- ++error_count16;
- }
-
- if (error_count16 == 0)
- break;
-
- if (ecbase == 0)
- {
- eco = ecbase = error_count16;
- ++trybase; /* First test */
- }
-
- else if (error_count16 < ecbase)
- {
- if (trybase > base)
- {
- base = trybase;
- ++trybase;
- }
- else if (trybase < base)
- {
- base = trybase;
- --trybase;
- }
- else if (trydelta > delta)
- {
- delta = trydelta;
- ++trydelta;
- }
- else if (trydelta < delta)
- {
- delta = trydelta;
- --trydelta;
- }
- else
- {
- fprintf(stderr, "makesRGB: impossible\n");
- exit(1);
- }
- ecbase = error_count16;
- }
-
- else
- {
- if (trybase > base)
- trybase = base-1;
- else if (trybase < base)
- {
- trybase = base;
- ++trydelta;
- }
- else if (trydelta > delta)
- trydelta = delta-1;
- else if (trydelta < delta)
- break; /* end of tests */
- }
- }
-
- png_sRGB_base[ibase >> 7] = base;
- png_sRGB_delta[ibase >> 7] = delta;
- if (base != ob || delta != od)
- {
- printf("/* table[%u]={%u,%u} -> {%u,%u} %u -> %u errors */\n",
- ibase>>7, ob, od, base, delta, eco, ecbase);
- }
- else if (0)
- printf("/* table[%u]={%u,%u} %u errors */\n", ibase>>7, ob, od,
- ecbase);
- }
-
- /* Only do the full (slow) test at the end: */
- min_error = -.4999;
- max_error = .4999;
- error_count = 0;
-
- for (i=0; i <= max_input; ++i)
- {
- unsigned int iexact = nearbyint(255*sRGB(i));
- unsigned int icalc = PNG_sRGB_FROM_LINEAR(i);
-
- if (icalc != iexact)
- {
- double err = 255*sRGB(i) - icalc;
-
- if (err > (max_error+.001) || err < (min_error-.001))
- {
- printf(
- "/* 0x%08x: exact: %3d, got: %3d [tables: %08x, %08x] (%f) */\n",
- i, iexact, icalc, png_sRGB_base[i>>15],
- png_sRGB_delta[i>>15], err);
- }
-
- ++error_count;
- if (err > max_error)
- max_error = err;
- else if (err < min_error)
- min_error = err;
- }
- }
-
- /* Re-check the 16-bit cases too, including the warning if there is an error
- * bigger than 1.
- */
- error_count16 = 0;
- max_error16 = 0;
- min_error16 = 0;
- for (i16=0; i16 <= 65535; ++i16)
- {
- unsigned int i = 255*i16;
- unsigned int iexact = nearbyint(255*sRGB(i));
- unsigned int icalc = PNG_sRGB_FROM_LINEAR(i);
-
- if (icalc != iexact)
- {
- double err = 255*sRGB(i) - icalc;
-
- ++error_count16;
- if (err > max_error16)
- max_error16 = err;
- else if (err < min_error16)
- min_error16 = err;
-
- if (abs(icalc - iexact) > 1)
- printf(
- "/* 0x%04x: exact: %3d, got: %3d [tables: %08x, %08x] (%f) */\n",
- i16, iexact, icalc, png_sRGB_base[i>>15],
- png_sRGB_delta[i>>15], err);
- }
- }
-
- /* Check the round trip for each 8-bit sRGB value. */
- for (i16=0; i16 <= 255; ++i16)
- {
- unsigned int i = 255 * png_sRGB_table[i16];
- unsigned int iexact = nearbyint(255*sRGB(i));
- unsigned int icalc = PNG_sRGB_FROM_LINEAR(i);
-
- if (i16 != iexact)
- {
- fprintf(stderr, "8-bit rounding error: %d -> %d\n", i16, iexact);
- exit(1);
- }
-
- if (icalc != i16)
- {
- double finv = finvsRGB(i16);
-
- printf("/* 8-bit roundtrip error: %d -> %f -> %d(%f) */\n",
- i16, finv, icalc, fsRGB(255*finv));
- }
- }
-
-
- printf("/* error: %g - %g, %u (%g%%) of readings inexact */\n",
- min_error, max_error, error_count, (100.*error_count)/max_input);
- printf("/* 16-bit error: %g - %g, %u (%g%%) of readings inexact */\n",
- min_error16, max_error16, error_count16, (100.*error_count16)/65535);
-
- if (!test_only)
- {
- printf("const png_uint_16 png_sRGB_table[256] =\n{\n ");
- for (i=0; i<255; )
- {
- do
- {
- printf("%d,", png_sRGB_table[i++]);
- }
- while ((i & 0x7) != 0 && i<255);
- if (i<255) printf("\n ");
- }
- printf("%d\n};\n\n", png_sRGB_table[i]);
-
-
- printf("const png_uint_16 png_sRGB_base[512] =\n{\n ");
- for (i=0; i<511; )
- {
- do
- {
- printf("%d,", png_sRGB_base[i++]);
- }
- while ((i & 0x7) != 0 && i<511);
- if (i<511) printf("\n ");
- }
- printf("%d\n};\n\n", png_sRGB_base[i]);
-
- printf("const png_byte png_sRGB_delta[512] =\n{\n ");
- for (i=0; i<511; )
- {
- do
- {
- printf("%d,", png_sRGB_delta[i++]);
- }
- while ((i & 0xf) != 0 && i<511);
- if (i<511) printf("\n ");
- }
- printf("%d\n};\n\n", png_sRGB_delta[i]);
- }
-
- return 0;
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/png-fix-itxt.c b/3rdparty/libpng/libpng-1.6.37/contrib/tools/png-fix-itxt.c
deleted file mode 100644
index c7654c1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/png-fix-itxt.c
+++ /dev/null
@@ -1,164 +0,0 @@
-
-/* png-fix-itxt version 1.0.0
- *
- * Copyright 2015 Glenn Randers-Pehrson
- * Last changed in libpng 1.6.18 [July 23, 2015]
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Usage:
- *
- * png-fix-itxt.exe < bad.png > good.png
- *
- * Fixes a PNG file written with libpng-1.6.0 or 1.6.1 that has one or more
- * uncompressed iTXt chunks. Assumes that the actual length is greater
- * than or equal to the value in the length byte, and that the CRC is
- * correct for the actual length. This program hunts for the CRC and
- * adjusts the length byte accordingly. It is not an error to process a
- * PNG file that has no iTXt chunks or one that has valid iTXt chunks;
- * such files will simply be copied.
- *
- * Requires zlib (for crc32 and Z_NULL); build with
- *
- * gcc -O -o png-fix-itxt png-fix-itxt.c -lz
- *
- * If you need to handle iTXt chunks larger than 500000 kbytes you must
- * rebuild png-fix-itxt with a larger values of MAX_LENGTH (or a smaller value
- * if you know you will never encounter such huge iTXt chunks).
- */
-
-#include <stdio.h>
-#include <zlib.h>
-
-#define MAX_LENGTH 500000
-
-/* Read one character (inchar), also return octet (c), break if EOF */
-#define GETBREAK inchar=getchar(); \
- c=(inchar & 0xffU);\
- if (inchar != c) break
-int
-main(void)
-{
- unsigned int i;
- unsigned char buf[MAX_LENGTH];
- unsigned long crc;
- unsigned char c;
- int inchar;
-
-/* Skip 8-byte signature */
- for (i=8; i; i--)
- {
- GETBREAK;
- putchar(c);
- }
-
-if (inchar == c) /* !EOF */
-for (;;)
- {
- /* Read the length */
- unsigned long length; /* must be 32 bits! */
- GETBREAK; buf[0] = c; length = c; length <<= 8;
- GETBREAK; buf[1] = c; length += c; length <<= 8;
- GETBREAK; buf[2] = c; length += c; length <<= 8;
- GETBREAK; buf[3] = c; length += c;
-
- /* Read the chunkname */
- GETBREAK; buf[4] = c;
- GETBREAK; buf[5] = c;
- GETBREAK; buf[6] = c;
- GETBREAK; buf[7] = c;
-
-
- /* The iTXt chunk type expressed as integers is (105, 84, 88, 116) */
- if (buf[4] == 105 && buf[5] == 84 && buf[6] == 88 && buf[7] == 116)
- {
- if (length >= MAX_LENGTH-12)
- break; /* To do: handle this more gracefully */
-
- /* Initialize the CRC */
- crc = crc32(0, Z_NULL, 0);
-
- /* Copy the data bytes */
- for (i=8; i < length + 12; i++)
- {
- GETBREAK; buf[i] = c;
- }
-
- if (inchar != c) /* EOF */
- break;
-
- /* Calculate the CRC */
- crc = crc32(crc, buf+4, (uInt)length+4);
-
- for (;;)
- {
- /* Check the CRC */
- if (((crc >> 24) & 0xffU) == buf[length+8] &&
- ((crc >> 16) & 0xffU) == buf[length+9] &&
- ((crc >> 8) & 0xffU) == buf[length+10] &&
- ((crc ) & 0xffU) == buf[length+11])
- break;
-
- length++;
-
- if (length >= MAX_LENGTH-12)
- break;
-
- GETBREAK;
- buf[length+11] = c;
-
- /* Update the CRC */
- crc = crc32(crc, buf+7+length, 1);
- }
-
- if (inchar != c) /* EOF */
- break;
-
- /* Update length bytes */
- buf[0] = (unsigned char)((length >> 24) & 0xffU);
- buf[1] = (unsigned char)((length >> 16) & 0xffU);
- buf[2] = (unsigned char)((length >> 8) & 0xffU);
- buf[3] = (unsigned char)((length ) & 0xffU);
-
- /* Write the fixed iTXt chunk (length, name, data, crc) */
- for (i=0; i<length+12; i++)
- putchar(buf[i]);
- }
-
- else
- {
- if (inchar != c) /* EOF */
- break;
-
- /* Copy bytes that were already read (length and chunk name) */
- for (i=0; i<8; i++)
- putchar(buf[i]);
-
- /* Copy data bytes and CRC */
- for (i=8; i< length+12; i++)
- {
- GETBREAK;
- putchar(c);
- }
-
- if (inchar != c) /* EOF */
- {
- break;
- }
-
- /* The IEND chunk type expressed as integers is (73, 69, 78, 68) */
- if (buf[4] == 73 && buf[5] == 69 && buf[6] == 78 && buf[7] == 68)
- break;
- }
-
- if (inchar != c) /* EOF */
- break;
-
- if (buf[4] == 73 && buf[5] == 69 && buf[6] == 78 && buf[7] == 68)
- break;
- }
-
- return 0;
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/png-fix-itxt.o b/3rdparty/libpng/libpng-1.6.37/contrib/tools/png-fix-itxt.o
deleted file mode 100644
index c5aa4b1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/png-fix-itxt.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/pngcp.c b/3rdparty/libpng/libpng-1.6.37/contrib/tools/pngcp.c
deleted file mode 100644
index 16d4e7f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/pngcp.c
+++ /dev/null
@@ -1,2453 +0,0 @@
-/* pngcp.c
- *
- * Copyright (c) 2016 John Cunningham Bowler
- *
- * Last changed in libpng 1.6.24 [August 4, 2016]
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * This is an example of copying a PNG without changes using the png_read_png
- * and png_write_png interfaces. A considerable number of options are provided
- * to manipulate the compression of the PNG data and other compressed chunks.
- *
- * For a more extensive example that uses the transforms see
- * contrib/libtests/pngimage.c in the libpng distribution.
- */
-#include "pnglibconf.h" /* To find how libpng was configured. */
-
-#ifdef PNG_PNGCP_TIMING_SUPPORTED
- /* WARNING:
- *
- * This test is here to allow POSIX.1b extensions to be used if enabled in
- * the compile; specifically the code requires_POSIX_C_SOURCE support of
- * 199309L or later to enable clock_gettime use.
- *
- * IF this causes problems THEN compile with a strict ANSI C compiler and let
- * this code turn on the POSIX features that it minimally requires.
- *
- * IF this does not work there is probably a bug in your ANSI C compiler or
- * your POSIX implementation.
- */
-# define _POSIX_C_SOURCE 199309L
-#else /* No timing support required */
-# define _POSIX_SOURCE 1
-#endif
-
-#if defined(HAVE_CONFIG_H) && !defined(PNG_NO_CONFIG_H)
-# include <config.h>
-#endif
-
-#include <stdio.h>
-
-/* Define the following to use this test against your installed libpng, rather
- * than the one being built here:
- */
-#ifdef PNG_FREESTANDING_TESTS
-# include <png.h>
-#else
-# include "../../png.h"
-#endif
-
-#if PNG_LIBPNG_VER < 10700
- /* READ_PNG and WRITE_PNG were not defined, so: */
-# ifdef PNG_INFO_IMAGE_SUPPORTED
-# ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-# define PNG_READ_PNG_SUPPORTED
-# endif /* SEQUENTIAL_READ */
-# ifdef PNG_WRITE_SUPPORTED
-# define PNG_WRITE_PNG_SUPPORTED
-# endif /* WRITE */
-# endif /* INFO_IMAGE */
-#endif /* pre 1.7.0 */
-
-#if (defined(PNG_READ_PNG_SUPPORTED)) && (defined(PNG_WRITE_PNG_SUPPORTED))
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <limits.h>
-#include <assert.h>
-
-#include <unistd.h>
-#include <sys/stat.h>
-
-#include <zlib.h>
-
-#ifndef PNG_SETJMP_SUPPORTED
-# include <setjmp.h> /* because png.h did *not* include this */
-#endif
-
-#ifdef __cplusplus
-# define voidcast(type, value) static_cast<type>(value)
-#else
-# define voidcast(type, value) (value)
-#endif /* __cplusplus */
-
-#ifdef __GNUC__
- /* Many versions of GCC erroneously report that local variables unmodified
- * within the scope of a setjmp may be clobbered. This hacks round the
- * problem (sometimes) without harming other compilers.
- */
-# define gv volatile
-#else
-# define gv
-#endif
-
-/* 'CLOCK_PROCESS_CPUTIME_ID' is one of the clock timers for clock_gettime. It
- * need not be supported even when clock_gettime is available. It returns the
- * 'CPU' time the process has consumed. 'CPU' time is assumed to include time
- * when the CPU is actually blocked by a pending cache fill but not time
- * waiting for page faults. The attempt is to get a measure of the actual time
- * the implementation takes to read a PNG ignoring the potentially very large IO
- * overhead.
- */
-#ifdef PNG_PNGCP_TIMING_SUPPORTED
-# include <time.h> /* clock_gettime and associated definitions */
-# ifndef CLOCK_PROCESS_CPUTIME_ID
- /* Prevent inclusion of the spurious code: */
-# undef PNG_PNGCP_TIMING_SUPPORTED
-# endif
-#endif /* PNGCP_TIMING */
-
-/* So if the timing feature has been activated: */
-
-/* This structure is used to control the test of a single file. */
-typedef enum
-{
- VERBOSE, /* switches on all messages */
- INFORMATION,
- WARNINGS, /* switches on warnings */
- LIBPNG_WARNING,
- APP_WARNING,
- ERRORS, /* just errors */
- APP_FAIL, /* continuable error - no need to longjmp */
- LIBPNG_ERROR, /* this and higher cause a longjmp */
- LIBPNG_BUG, /* erroneous behavior in libpng */
- APP_ERROR, /* such as out-of-memory in a callback */
- QUIET, /* no normal messages */
- USER_ERROR, /* such as file-not-found */
- INTERNAL_ERROR
-} error_level;
-#define LEVEL_MASK 0xf /* where the level is in 'options' */
-
-#define STRICT 0x010 /* Fail on warnings as well as errors */
-#define LOG 0x020 /* Log pass/fail to stdout */
-#define CONTINUE 0x040 /* Continue on APP_FAIL errors */
-#define SIZES 0x080 /* Report input and output sizes */
-#define SEARCH 0x100 /* Search IDAT compression options */
-#define NOWRITE 0x200 /* Do not write an output file */
-#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
-# define IGNORE_INDEX 0x400 /* Ignore out of range palette indices (BAD!) */
-# ifdef PNG_GET_PALETTE_MAX_SUPPORTED
-# define FIX_INDEX 0x800 /* 'Fix' out of range palette indices (OK) */
-# endif /* GET_PALETTE_MAX */
-#endif /* CHECK_FOR_INVALID_INDEX */
-#define OPTION 0x80000000 /* Used for handling options */
-#define LIST 0x80000001 /* Used for handling options */
-
-/* Result masks apply to the result bits in the 'results' field below; these
- * bits are simple 1U<<error_level. A pass requires either nothing worse than
- * warnings (--relaxes) or nothing worse than information (--strict)
- */
-#define RESULT_STRICT(r) (((r) & ~((1U<<WARNINGS)-1)) == 0)
-#define RESULT_RELAXED(r) (((r) & ~((1U<<ERRORS)-1)) == 0)
-
-/* OPTION DEFINITIONS */
-static const char range_lo[] = "low";
-static const char range_hi[] = "high";
-static const char all[] = "all";
-#define RANGE(lo,hi) { range_lo, lo }, { range_hi, hi }
-typedef struct value_list
-{
- const char *name; /* the command line name of the value */
- int value; /* the actual value to use */
-} value_list;
-
-static const value_list
-#ifdef PNG_SW_COMPRESS_png_level
-vl_compression[] =
-{
- /* Overall compression control. The order controls the search order for
- * 'all'. Since the search is for the smallest the order used is low memory
- * then high speed.
- */
- { "low-memory", PNG_COMPRESSION_LOW_MEMORY },
- { "high-speed", PNG_COMPRESSION_HIGH_SPEED },
- { "high-read-speed", PNG_COMPRESSION_HIGH_READ_SPEED },
- { "low", PNG_COMPRESSION_LOW },
- { "medium", PNG_COMPRESSION_MEDIUM },
- { "old", PNG_COMPRESSION_COMPAT },
- { "high", PNG_COMPRESSION_HIGH },
- { all, 0 }
-},
-#endif /* SW_COMPRESS_png_level */
-
-#if defined(PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED) ||\
- defined(PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED)
-vl_strategy[] =
-{
- /* This controls the order of search. */
- { "huffman", Z_HUFFMAN_ONLY },
- { "RLE", Z_RLE },
- { "fixed", Z_FIXED }, /* the remainder do window searches */
- { "filtered", Z_FILTERED },
- { "default", Z_DEFAULT_STRATEGY },
- { all, 0 }
-},
-#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
-vl_windowBits_text[] =
-{
- { "default", MAX_WBITS/*from zlib*/ },
- { "minimum", 8 },
- RANGE(8, MAX_WBITS/*from zlib*/),
- { all, 0 }
-},
-#endif /* text compression */
-vl_level[] =
-{
- { "default", Z_DEFAULT_COMPRESSION /* this is -1 */ },
- { "none", Z_NO_COMPRESSION },
- { "speed", Z_BEST_SPEED },
- { "best", Z_BEST_COMPRESSION },
- { "0", Z_NO_COMPRESSION },
- RANGE(1, 9), /* this deliberately excludes '0' */
- { all, 0 }
-},
-vl_memLevel[] =
-{
- { "max", MAX_MEM_LEVEL }, /* zlib maximum */
- { "1", 1 }, /* zlib minimum */
- { "default", 8 }, /* zlib default */
- { "2", 2 },
- { "3", 3 },
- { "4", 4 },
- { "5", 5 }, /* for explicit testing */
- RANGE(6, MAX_MEM_LEVEL/*zlib*/), /* exclude 5 and below: zlib bugs */
- { all, 0 }
-},
-#endif /* WRITE_CUSTOMIZE_*COMPRESSION */
-#ifdef PNG_WRITE_FILTER_SUPPORTED
-vl_filter[] =
-{
- { all, PNG_ALL_FILTERS },
- { "off", PNG_NO_FILTERS },
- { "none", PNG_FILTER_NONE },
- { "sub", PNG_FILTER_SUB },
- { "up", PNG_FILTER_UP },
- { "avg", PNG_FILTER_AVG },
- { "paeth", PNG_FILTER_PAETH }
-},
-#endif /* WRITE_FILTER */
-#ifdef PNG_PNGCP_TIMING_SUPPORTED
-# define PNGCP_TIME_READ 1
-# define PNGCP_TIME_WRITE 2
-vl_time[] =
-{
- { "both", PNGCP_TIME_READ+PNGCP_TIME_WRITE },
- { "off", 0 },
- { "read", PNGCP_TIME_READ },
- { "write", PNGCP_TIME_WRITE }
-},
-#endif /* PNGCP_TIMING */
-vl_IDAT_size[] = /* for png_set_IDAT_size */
-{
- { "default", 0x7FFFFFFF },
- { "minimal", 1 },
- RANGE(1, 0x7FFFFFFF)
-},
-#ifndef PNG_SW_IDAT_size
- /* Pre 1.7 API: */
-# define png_set_IDAT_size(p,v) png_set_compression_buffer_size(p, v)
-#endif /* !SW_IDAT_size */
-#define SL 8 /* stack limit in display, below */
-vl_log_depth[] = { { "on", 1 }, { "off", 0 }, RANGE(0, SL) },
-vl_on_off[] = { { "on", 1 }, { "off", 0 } };
-
-#ifdef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
-static value_list
-vl_windowBits_IDAT[] =
-{
- { "default", MAX_WBITS },
- { "small", 9 },
- RANGE(8, MAX_WBITS), /* modified by set_windowBits_hi */
- { all, 0 }
-};
-#endif /* IDAT compression */
-
-typedef struct option
-{
- const char *name; /* name of the option */
- png_uint_32 opt; /* an option, or OPTION or LIST */
- png_byte search; /* Search on --search */
- png_byte value_count; /* length of the list of values: */
- const value_list *values; /* values for OPTION or LIST */
-} option;
-
-static const option options[] =
-{
- /* struct display options, these are set when the command line is read */
-# define S(n,v) { #n, v, 0, 2, vl_on_off },
- S(verbose, VERBOSE)
- S(warnings, WARNINGS)
- S(errors, ERRORS)
- S(quiet, QUIET)
- S(strict, STRICT)
- S(log, LOG)
- S(continue, CONTINUE)
- S(sizes, SIZES)
- S(search, SEARCH)
- S(nowrite, NOWRITE)
-# ifdef IGNORE_INDEX
- S(ignore-palette-index, IGNORE_INDEX)
-# endif /* IGNORE_INDEX */
-# ifdef FIX_INDEX
- S(fix-palette-index, FIX_INDEX)
-# endif /* FIX_INDEX */
-# undef S
-
- /* OPTION settings, these and LIST settings are read on demand */
-# define VLNAME(name) vl_ ## name
-# define VLSIZE(name) voidcast(png_byte,\
- (sizeof VLNAME(name))/(sizeof VLNAME(name)[0]))
-# define VL(oname, name, type, search)\
- { oname, type, search, VLSIZE(name), VLNAME(name) },
-# define VLO(oname, name, search) VL(oname, name, OPTION, search)
-
-# ifdef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
-# define VLCIDAT(name) VLO(#name, name, 1/*search*/)
-# ifdef PNG_SW_COMPRESS_level
-# define VLCiCCP(name) VLO("ICC-profile-" #name, name, 0/*search*/)
-# else
-# define VLCiCCP(name)
-# endif
-# else
-# define VLCIDAT(name)
-# define VLCiCCP(name)
-# endif /* WRITE_CUSTOMIZE_COMPRESSION */
-
-# ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
-# define VLCzTXt(name) VLO("text-" #name, name, 0/*search*/)
-# else
-# define VLCzTXt(name)
-# endif /* WRITE_CUSTOMIZE_ZTXT_COMPRESSION */
-
-# define VLC(name) VLCIDAT(name) VLCiCCP(name) VLCzTXt(name)
-
-# ifdef PNG_SW_COMPRESS_png_level
- /* The libpng compression level isn't searched because it justs sets the
- * other things that are searched!
- */
- VLO("compression", compression, 0)
- VLO("text-compression", compression, 0)
- VLO("ICC-profile-compression", compression, 0)
-# endif /* SW_COMPRESS_png_level */
- VLC(strategy)
- VLO("windowBits", windowBits_IDAT, 1)
-# ifdef PNG_SW_COMPRESS_windowBits
- VLO("ICC-profile-windowBits", windowBits_text/*sic*/, 0)
-# endif
- VLO("text-windowBits", windowBits_text, 0)
- VLC(level)
- VLC(memLevel)
- VLO("IDAT-size", IDAT_size, 0)
- VLO("log-depth", log_depth, 0)
-
-# undef VLO
-
- /* LIST settings */
-# define VLL(name, search) VL(#name, name, LIST, search)
-#ifdef PNG_WRITE_FILTER_SUPPORTED
- VLL(filter, 0)
-#endif /* WRITE_FILTER */
-#ifdef PNG_PNGCP_TIMING_SUPPORTED
- VLL(time, 0)
-#endif /* PNGCP_TIMING */
-# undef VLL
-# undef VL
-};
-
-#ifdef __cplusplus
- static const size_t option_count((sizeof options)/(sizeof options[0]));
-#else /* !__cplusplus */
-# define option_count ((sizeof options)/(sizeof options[0]))
-#endif /* !__cplusplus */
-
-static const char *
-cts(int ct)
-{
- switch (ct)
- {
- case PNG_COLOR_TYPE_PALETTE: return "P";
- case PNG_COLOR_TYPE_GRAY: return "G";
- case PNG_COLOR_TYPE_GRAY_ALPHA: return "GA";
- case PNG_COLOR_TYPE_RGB: return "RGB";
- case PNG_COLOR_TYPE_RGB_ALPHA: return "RGBA";
- default: return "INVALID";
- }
-}
-
-struct display
-{
- jmp_buf error_return; /* Where to go to on error */
- unsigned int errset; /* error_return is set */
-
- const char *operation; /* What is happening */
- const char *filename; /* The name of the original file */
- const char *output_file; /* The name of the output file */
-
- /* Used on both read and write: */
- FILE *fp;
-
- /* Used on a read, both the original read and when validating a written
- * image.
- */
- png_alloc_size_t read_size;
- png_structp read_pp;
- png_infop ip;
-# if PNG_LIBPNG_VER < 10700 && defined PNG_TEXT_SUPPORTED
- png_textp text_ptr; /* stash of text chunks */
- int num_text;
- int text_stashed;
-# endif /* pre 1.7 */
-
-# ifdef PNG_PNGCP_TIMING_SUPPORTED
- struct timespec read_time;
- struct timespec read_time_total;
- struct timespec write_time;
- struct timespec write_time_total;
-# endif /* PNGCP_TIMING */
-
- /* Used to write a new image (the original info_ptr is used) */
-# define MAX_SIZE ((png_alloc_size_t)(-1))
- png_alloc_size_t write_size;
- png_alloc_size_t best_size;
- png_structp write_pp;
-
- /* Base file information */
- png_alloc_size_t size;
- png_uint_32 w;
- png_uint_32 h;
- int bpp;
- png_byte ct;
- int no_warnings; /* Do not output libpng warnings */
- int min_windowBits; /* The windowBits range is 8..8 */
-
- /* Options handling */
- png_uint_32 results; /* A mask of errors seen */
- png_uint_32 options; /* See display_log below */
- png_byte entry[option_count]; /* The selected entry+1 of an option
- * that appears on the command line, or
- * 0 if it was not given. */
- int value[option_count]; /* Corresponding value */
-
- /* Compression exhaustive testing */
- /* Temporary variables used only while testing a single collection of
- * settings:
- */
- unsigned int csp; /* next stack entry to use */
- unsigned int nsp; /* highest active entry+1 found so far */
-
- /* Values used while iterating through all the combinations of settings for a
- * single file:
- */
- unsigned int tsp; /* nsp from the last run; this is the
- * index+1 of the highest active entry on
- * this run; this entry will be advanced.
- */
- int opt_string_start; /* Position in buffer for the first
- * searched option; non-zero if earlier
- * options were set on the command line.
- */
- struct stack
- {
- png_alloc_size_t best_size; /* Best so far for this option */
- png_alloc_size_t lo_size;
- png_alloc_size_t hi_size;
- int lo, hi; /* For binary chop of a range */
- int best_val; /* Best value found so far */
- int opt_string_end; /* End of the option string in 'curr' */
- png_byte opt; /* The option being tested */
- png_byte entry; /* The next value entry to be tested */
- png_byte end; /* This is the last entry */
- } stack[SL]; /* Stack of entries being tested */
- char curr[32*SL]; /* current options being tested */
- char best[32*SL]; /* best options */
-
- char namebuf[FILENAME_MAX]; /* output file name */
-};
-
-static void
-display_init(struct display *dp)
- /* Call this only once right at the start to initialize the control
- * structure, the (struct buffer) lists are maintained across calls - the
- * memory is not freed.
- */
-{
- memset(dp, 0, sizeof *dp);
- dp->operation = "internal error";
- dp->filename = "command line";
- dp->output_file = "no output file";
- dp->options = WARNINGS; /* default to !verbose, !quiet */
- dp->fp = NULL;
- dp->read_pp = NULL;
- dp->ip = NULL;
- dp->write_pp = NULL;
- dp->min_windowBits = -1; /* this is an OPTIND, so -1 won't match anything */
-# if PNG_LIBPNG_VER < 10700 && defined PNG_TEXT_SUPPORTED
- dp->text_ptr = NULL;
- dp->num_text = 0;
- dp->text_stashed = 0;
-# endif /* pre 1.7 */
-}
-
-static void
-display_clean_read(struct display *dp)
-{
- if (dp->read_pp != NULL)
- png_destroy_read_struct(&dp->read_pp, NULL, NULL);
-
- if (dp->fp != NULL)
- {
- FILE *fp = dp->fp;
- dp->fp = NULL;
- (void)fclose(fp);
- }
-}
-
-static void
-display_clean_write(struct display *dp)
-{
- if (dp->fp != NULL)
- {
- FILE *fp = dp->fp;
- dp->fp = NULL;
- (void)fclose(fp);
- }
-
- if (dp->write_pp != NULL)
- png_destroy_write_struct(&dp->write_pp, dp->tsp > 0 ? NULL : &dp->ip);
-}
-
-static void
-display_clean(struct display *dp)
-{
- display_clean_read(dp);
- display_clean_write(dp);
- dp->output_file = NULL;
-
-# if PNG_LIBPNG_VER < 10700 && defined PNG_TEXT_SUPPORTED
- /* This is actually created and used by the write code, but only
- * once; it has to be retained for subsequent writes of the same file.
- */
- if (dp->text_stashed)
- {
- dp->text_stashed = 0;
- dp->num_text = 0;
- free(dp->text_ptr);
- dp->text_ptr = NULL;
- }
-# endif /* pre 1.7 */
-
- /* leave the filename for error detection */
- dp->results = 0; /* reset for next time */
-}
-
-static void
-display_destroy(struct display *dp)
-{
- /* Release any memory held in the display. */
- display_clean(dp);
-}
-
-static struct display *
-get_dp(png_structp pp)
- /* The display pointer is always stored in the png_struct error pointer */
-{
- struct display *dp = (struct display*)png_get_error_ptr(pp);
-
- if (dp == NULL)
- {
- fprintf(stderr, "pngcp: internal error (no display)\n");
- exit(99); /* prevents a crash */
- }
-
- return dp;
-}
-
-/* error handling */
-#ifdef __GNUC__
-# define VGATTR __attribute__((__format__ (__printf__,3,4)))
- /* Required to quiet GNUC warnings when the compiler sees a stdarg function
- * that calls one of the stdio v APIs.
- */
-#else
-# define VGATTR
-#endif
-static void VGATTR
-display_log(struct display *dp, error_level level, const char *fmt, ...)
- /* 'level' is as above, fmt is a stdio style format string. This routine
- * does not return if level is above LIBPNG_WARNING
- */
-{
- dp->results |= 1U << level;
-
- if (level > (error_level)(dp->options & LEVEL_MASK))
- {
- const char *lp;
- va_list ap;
-
- switch (level)
- {
- case INFORMATION: lp = "information"; break;
- case LIBPNG_WARNING: lp = "warning(libpng)"; break;
- case APP_WARNING: lp = "warning(pngcp)"; break;
- case APP_FAIL: lp = "error(continuable)"; break;
- case LIBPNG_ERROR: lp = "error(libpng)"; break;
- case LIBPNG_BUG: lp = "bug(libpng)"; break;
- case APP_ERROR: lp = "error(pngcp)"; break;
- case USER_ERROR: lp = "error(user)"; break;
-
- case INTERNAL_ERROR: /* anything unexpected is an internal error: */
- case VERBOSE: case WARNINGS: case ERRORS: case QUIET:
- default: lp = "bug(pngcp)"; break;
- }
-
- fprintf(stderr, "%s: %s: %s",
- dp->filename != NULL ? dp->filename : "<stdin>", lp, dp->operation);
-
- fprintf(stderr, ": ");
-
- va_start(ap, fmt);
- vfprintf(stderr, fmt, ap);
- va_end(ap);
-
- fputc('\n', stderr);
- }
- /* else do not output any message */
-
- /* Errors cause this routine to exit to the fail code */
- if (level > APP_FAIL || (level > ERRORS && !(dp->options & CONTINUE)))
- {
- if (dp->errset)
- longjmp(dp->error_return, level);
-
- else
- exit(99);
- }
-}
-
-#if PNG_LIBPNG_VER < 10700 && defined PNG_TEXT_SUPPORTED
-static void
-text_stash(struct display *dp)
-{
- /* libpng 1.6 and earlier fixed a bug whereby text chunks were written
- * multiple times by png_write_png; the issue was that png_write_png passed
- * the same png_info to both png_write_info and png_write_end. Rather than
- * fixing it by recording the information in the png_struct, or by recording
- * where to write the chunks, the fix made was to change the 'compression'
- * field of the chunk to invalid values, rendering the png_info somewhat
- * useless.
- *
- * The only fix for this given that we use the png_info more than once is to
- * make a copy of the text chunks and png_set_text it each time. This adds a
- * text chunks, so they get replicated, but only the new set gets written
- * each time. This uses memory like crazy but there is no way to delete the
- * useless chunks from the png_info.
- *
- * To make this slightly more efficient only the top level structure is
- * copied; since the old strings are actually preserved (in 1.6 and earlier)
- * this happens to work.
- */
- png_textp chunks = NULL;
-
- dp->num_text = png_get_text(dp->write_pp, dp->ip, &chunks, NULL);
-
- if (dp->num_text > 0)
- {
- dp->text_ptr = voidcast(png_textp, malloc(dp->num_text * sizeof *chunks));
-
- if (dp->text_ptr == NULL)
- display_log(dp, APP_ERROR, "text chunks: stash malloc failed");
-
- else
- memcpy(dp->text_ptr, chunks, dp->num_text * sizeof *chunks);
- }
-
- dp->text_stashed = 1; /* regardless of whether there are chunks or not */
-}
-
-#define text_stash(dp) if (!dp->text_stashed) text_stash(dp)
-
-static void
-text_restore(struct display *dp)
-{
- /* libpng makes a copy, so this is fine: */
- if (dp->text_ptr != NULL)
- png_set_text(dp->write_pp, dp->ip, dp->text_ptr, dp->num_text);
-}
-
-#define text_restore(dp) if (dp->text_stashed) text_restore(dp)
-
-#else
-#define text_stash(dp) ((void)0)
-#define text_restore(dp) ((void)0)
-#endif /* pre 1.7 */
-
-/* OPTIONS:
- *
- * The command handles options of the forms:
- *
- * --option
- * Turn an option on (Option)
- * --no-option
- * Turn an option off (Option)
- * --option=value
- * Set an option to a value (Value)
- * --option=val1,val2,val3
- * Set an option to a bitmask constructed from the values (List)
- */
-static png_byte
-option_index(struct display *dp, const char *opt, size_t len)
- /* Return the index (in options[]) of the given option, outputs an error if
- * it does not exist. Takes the name of the option and a length (number of
- * characters in the name).
- */
-{
- png_byte j;
-
- for (j=0; j<option_count; ++j)
- if (strncmp(options[j].name, opt, len) == 0 && options[j].name[len] == 0)
- return j;
-
- /* If the setjmp buffer is set the code is asking for an option index; this
- * is bad. Otherwise this is the command line option parsing.
- */
- display_log(dp, dp->errset ? INTERNAL_ERROR : USER_ERROR,
- "%.*s: unknown option", (int)/*SAFE*/len, opt);
- abort(); /* NOT REACHED */
-}
-
-/* This works for an option name (no quotes): */
-#define OPTIND(dp, name) option_index(dp, #name, (sizeof #name)-1)
-
-static int
-get_option(struct display *dp, const char *opt, int *value)
-{
- png_byte i = option_index(dp, opt, strlen(opt));
-
- if (dp->entry[i]) /* option was set on command line */
- {
- *value = dp->value[i];
- return 1;
- }
-
- else
- return 0;
-}
-
-static int
-set_opt_string_(struct display *dp, unsigned int sp, png_byte opt,
- const char *entry_name)
- /* Add the appropriate option string to dp->curr. */
-{
- int offset, add;
-
- if (sp > 0)
- offset = dp->stack[sp-1].opt_string_end;
-
- else
- offset = dp->opt_string_start;
-
- if (entry_name == range_lo)
- add = sprintf(dp->curr+offset, " --%s=%d", options[opt].name,
- dp->value[opt]);
-
- else
- add = sprintf(dp->curr+offset, " --%s=%s", options[opt].name, entry_name);
-
- if (add < 0)
- display_log(dp, INTERNAL_ERROR, "sprintf failed");
-
- assert(offset+add < (int)/*SAFE*/sizeof dp->curr);
- return offset+add;
-}
-
-static void
-set_opt_string(struct display *dp, unsigned int sp)
- /* Add the appropriate option string to dp->curr. */
-{
- dp->stack[sp].opt_string_end = set_opt_string_(dp, sp, dp->stack[sp].opt,
- options[dp->stack[sp].opt].values[dp->stack[sp].entry].name);
-}
-
-static void
-record_opt(struct display *dp, png_byte opt, const char *entry_name)
- /* Record this option in dp->curr; called for an option not being searched,
- * the caller passes in the name of the value, or range_lo to use the
- * numerical value.
- */
-{
- unsigned int sp = dp->csp; /* stack entry of next searched option */
-
- if (sp >= dp->tsp)
- {
- /* At top of stack; add the opt string for this entry to the previous
- * searched entry or the start of the dp->curr buffer if there is nothing
- * on the stack yet (sp == 0).
- */
- int offset = set_opt_string_(dp, sp, opt, entry_name);
-
- if (sp > 0)
- dp->stack[sp-1].opt_string_end = offset;
-
- else
- dp->opt_string_start = offset;
- }
-
- /* else do nothing: option already recorded */
-}
-
-static int
-opt_list_end(struct display *dp, png_byte opt, png_byte entry)
-{
- if (options[opt].values[entry].name == range_lo)
- return entry+1U >= options[opt].value_count /* missing range_hi */ ||
- options[opt].values[entry+1U].name != range_hi /* likewise */ ||
- options[opt].values[entry+1U].value <= dp->value[opt] /* range end */;
-
- else
- return entry+1U >= options[opt].value_count /* missing 'all' */ ||
- options[opt].values[entry+1U].name == all /* last entry */;
-}
-
-static void
-push_opt(struct display *dp, unsigned int sp, png_byte opt, int search)
- /* Push a new option onto the stack, initializing the new stack entry
- * appropriately; this does all the work of next_opt (setting end/nsp) for
- * the first entry in the list.
- */
-{
- png_byte entry;
- const char *entry_name;
-
- assert(sp == dp->tsp && sp < SL);
-
- /* The starting entry is entry 0 unless there is a range in which case it is
- * the entry corresponding to range_lo:
- */
- entry = options[opt].value_count;
- assert(entry > 0U);
-
- do
- {
- entry_name = options[opt].values[--entry].name;
- if (entry_name == range_lo)
- break;
- }
- while (entry > 0U);
-
- dp->tsp = sp+1U;
- dp->stack[sp].best_size =
- dp->stack[sp].lo_size =
- dp->stack[sp].hi_size = MAX_SIZE;
-
- if (search && entry_name == range_lo) /* search this range */
- {
- dp->stack[sp].lo = options[opt].values[entry].value;
- /* check for a mal-formed RANGE above: */
- assert(entry+1 < options[opt].value_count &&
- options[opt].values[entry+1].name == range_hi);
- dp->stack[sp].hi = options[opt].values[entry+1].value;
- }
-
- else
- {
- /* next_opt will just iterate over the range. */
- dp->stack[sp].lo = INT_MAX;
- dp->stack[sp].hi = INT_MIN; /* Prevent range chop */
- }
-
- dp->stack[sp].opt = opt;
- dp->stack[sp].entry = entry;
- dp->stack[sp].best_val = dp->value[opt] = options[opt].values[entry].value;
-
- set_opt_string(dp, sp);
-
- /* This works for the search case too; if the range has only one entry 'end'
- * will be marked here.
- */
- if (opt_list_end(dp, opt, entry))
- {
- dp->stack[sp].end = 1;
- /* Skip the warning if pngcp did this itself. See the code in
- * set_windowBits_hi.
- */
- if (opt != dp->min_windowBits)
- display_log(dp, APP_WARNING, "%s: only testing one value",
- options[opt].name);
- }
-
- else
- {
- dp->stack[sp].end = 0;
- dp->nsp = dp->tsp;
- }
-
- /* Do a lazy cache of the text chunks for libpng 1.6 and earlier; this is
- * because they can only be written once(!) so if we are going to re-use the
- * png_info we need a copy.
- */
- text_stash(dp);
-}
-
-static void
-next_opt(struct display *dp, unsigned int sp)
- /* Return the next value for this option. When called 'sp' is expected to be
- * the topmost stack entry - only the topmost entry changes each time round -
- * and there must be a valid entry to return. next_opt will set dp->nsp to
- * sp+1 if more entries are available, otherwise it will not change it and
- * set dp->stack[s].end to true.
- */
-{
- int search = 0;
- png_byte entry, opt;
- const char *entry_name;
-
- /* dp->stack[sp] must be the top stack entry and it must be active: */
- assert(sp+1U == dp->tsp && !dp->stack[sp].end);
-
- opt = dp->stack[sp].opt;
- entry = dp->stack[sp].entry;
- assert(entry+1U < options[opt].value_count);
- entry_name = options[opt].values[entry].name;
- assert(entry_name != NULL);
-
- /* For ranges increment the value but don't change the entry, for all other
- * cases move to the next entry and load its value:
- */
- if (entry_name == range_lo) /* a range */
- {
- /* A range can be iterated over or searched. The default iteration option
- * is indicated by hi < lo on the stack, otherwise the range being search
- * is [lo..hi] (inclusive).
- */
- if (dp->stack[sp].lo > dp->stack[sp].hi)
- dp->value[opt]++;
-
- else
- {
- /* This is the best size found for this option value: */
- png_alloc_size_t best_size = dp->stack[sp].best_size;
- int lo = dp->stack[sp].lo;
- int hi = dp->stack[sp].hi;
- int val = dp->value[opt];
-
- search = 1; /* end is determined here */
- assert(best_size < MAX_SIZE);
-
- if (val == lo)
- {
- /* Finding the best for the low end of the range: */
- dp->stack[sp].lo_size = best_size;
- assert(hi > val);
-
- if (hi == val+1) /* only 2 entries */
- dp->stack[sp].end = 1;
-
- val = hi;
- }
-
- else if (val == hi)
- {
- dp->stack[sp].hi_size = best_size;
- assert(val > lo+1); /* else 'end' set above */
-
- if (val == lo+2) /* only three entries to test */
- dp->stack[sp].end = 1;
-
- val = (lo + val)/2;
- }
-
- else
- {
- png_alloc_size_t lo_size = dp->stack[sp].lo_size;
- png_alloc_size_t hi_size = dp->stack[sp].hi_size;
-
- /* lo and hi should have been tested. */
- assert(lo_size < MAX_SIZE && hi_size < MAX_SIZE);
-
- /* These cases arise with the 'probe' handling below when there is a
- * dip or peak in the size curve.
- */
- if (val < lo) /* probing a new lo */
- {
- /* Swap lo and val: */
- dp->stack[sp].lo = val;
- dp->stack[sp].lo_size = best_size;
- val = lo;
- best_size = lo_size;
- lo = dp->stack[sp].lo;
- lo_size = dp->stack[sp].lo_size;
- }
-
- else if (val > hi) /* probing a new hi */
- {
- /* Swap hi and val: */
- dp->stack[sp].hi = val;
- dp->stack[sp].hi_size = best_size;
- val = hi;
- best_size = hi_size;
- hi = dp->stack[sp].hi;
- hi_size = dp->stack[sp].hi_size;
- }
-
- /* The following should be true or something got messed up above. */
- assert(lo < val && val < hi);
-
- /* If there are only four entries (lo, val, hi plus one more) just
- * test the remaining entry.
- */
- if (hi == lo+3)
- {
- /* Because of the 'probe' code val can either be lo+1 or hi-1; we
- * need to test the other.
- */
- val = lo + ((val == lo+1) ? 2 : 1);
- assert(lo < val && val < hi);
- dp->stack[sp].end = 1;
- }
-
- else
- {
- /* There are at least 2 entries still untested between lo and hi,
- * i.e. hi >= lo+4. 'val' is the midpoint +/- 0.5
- *
- * Separate out the four easy cases when lo..val..hi are
- * monotonically decreased or (more weird) increasing:
- */
- assert(hi > lo+3);
-
- if (lo_size <= best_size && best_size <= hi_size)
- {
- /* Select the low range; testing this first favours the low
- * range over the high range when everything comes out equal.
- * Because of the probing 'val' may be lo+1. In that case end
- * the search and set 'val' to lo+2.
- */
- if (val == lo+1)
- {
- ++val;
- dp->stack[sp].end = 1;
- }
-
- else
- {
- dp->stack[sp].hi = hi = val;
- dp->stack[sp].hi_size = best_size;
- val = (lo + val) / 2;
- }
- }
-
- else if (lo_size >= best_size && best_size >= hi_size)
- {
- /* Monotonically decreasing size; this is the expected case.
- * Select the high end of the range. As above, val may be
- * hi-1.
- */
- if (val == hi-1)
- {
- --val;
- dp->stack[sp].end = 1;
- }
-
- else
- {
- dp->stack[sp].lo = lo = val;
- dp->stack[sp].lo_size = best_size;
- val = (val + hi) / 2;
- }
- }
-
- /* If both those tests failed 'best_size' is either greater than
- * or less than both lo_size and hi_size. There is a peak or dip
- * in the curve of sizes from lo to hi and val is on the peak or
- * dip.
- *
- * Because the ranges being searched as so small (level is 1..9,
- * windowBits 8..15, memLevel 1..9) there will only be at most
- * three untested values between lo..val and val..hi, so solve
- * the problem by probing down from hi or up from lo, whichever
- * is the higher.
- *
- * This is the place where 'val' is set to outside the range
- * lo..hi, described as 'probing', though maybe 'narrowing' would
- * be more accurate.
- */
- else if (lo_size <= hi_size) /* down from hi */
- {
- dp->stack[sp].hi = val;
- dp->stack[sp].hi_size = best_size;
- val = --hi;
- }
-
- else /* up from low */
- {
- dp->stack[sp].lo = val;
- dp->stack[sp].lo_size = best_size;
- val = ++lo;
- }
-
- /* lo and hi are still the true range limits, check for the end
- * condition.
- */
- assert(hi > lo+1);
- if (hi <= lo+2)
- dp->stack[sp].end = 1;
- }
- }
-
- assert(val != dp->stack[sp].best_val); /* should be a new value */
- dp->value[opt] = val;
- dp->stack[sp].best_size = MAX_SIZE;
- }
- }
-
- else
- {
- /* Increment 'entry' */
- dp->value[opt] = options[opt].values[++entry].value;
- dp->stack[sp].entry = entry;
- }
-
- set_opt_string(dp, sp);
-
- if (!search && opt_list_end(dp, opt, entry)) /* end of list */
- dp->stack[sp].end = 1;
-
- else if (!dp->stack[sp].end) /* still active after all these tests */
- dp->nsp = dp->tsp;
-}
-
-static int
-compare_option(const struct display *dp, unsigned int sp)
-{
- int opt = dp->stack[sp].opt;
-
- /* If the best so far is numerically less than the current value the
- * current set of options is invariably worse.
- */
- if (dp->stack[sp].best_val < dp->value[opt])
- return -1;
-
- /* Lists of options are searched out of numerical order (currently only
- * strategy), so only return +1 here when a range is being searched.
- */
- else if (dp->stack[sp].best_val > dp->value[opt])
- {
- if (dp->stack[sp].lo <= dp->stack[sp].hi /*searching*/)
- return 1;
-
- else
- return -1;
- }
-
- else
- return 0; /* match; current value is the best one */
-}
-
-static int
-advance_opt(struct display *dp, png_byte opt, int search)
-{
- unsigned int sp = dp->csp++; /* my stack entry */
-
- assert(sp >= dp->nsp); /* nsp starts off zero */
-
- /* If the entry was active in the previous run dp->stack[sp] is already
- * set up and dp->tsp will be greater than sp, otherwise a new entry
- * needs to be created.
- *
- * dp->nsp is handled this way:
- *
- * 1) When an option is pushed onto the stack dp->nsp and dp->tsp are
- * both set (by push_opt) to the next stack entry *unless* there is
- * only one entry in the new list, in which case dp->stack[sp].end
- * is set.
- *
- * 2) For the top stack entry next_opt is called. The entry must be
- * active (dp->stack[sp].end is not set) and either 'nsp' or 'end'
- * will be updated as appropriate.
- *
- * 3) For lower stack entries nsp is set unless the stack entry is
- * already at the end. This means that when all the higher entries
- * are popped this entry will be too.
- */
- if (sp >= dp->tsp)
- {
- push_opt(dp, sp, opt, search); /* This sets tsp to sp+1 */
- return 1; /* initialized */
- }
-
- else
- {
- int ret = 0; /* unchanged */
-
- /* An option that is already on the stack; update best_size and best_val
- * if appropriate. On the first run there are no previous values and
- * dp->write_size will be MAX_SIZE, however on the first run dp->tsp
- * starts off as 0.
- */
- assert(dp->write_size > 0U && dp->write_size < MAX_SIZE);
-
- if (dp->stack[sp].best_size > dp->write_size ||
- (dp->stack[sp].best_size == dp->write_size &&
- compare_option(dp, sp) > 0))
- {
- dp->stack[sp].best_size = dp->write_size;
- dp->stack[sp].best_val = dp->value[opt];
- }
-
- if (sp+1U >= dp->tsp)
- {
- next_opt(dp, sp);
- ret = 1; /* advanced */
- }
-
- else if (!dp->stack[sp].end) /* Active, not at top of stack */
- dp->nsp = sp+1U;
-
- return ret; /* advanced || unchanged */
- }
-}
-
-static int
-getallopts_(struct display *dp, png_byte opt, int *value, int record)
- /* Like getop but iterate over all the values if the option was set to "all".
- */
-{
- if (dp->entry[opt]) /* option was set on command line */
- {
- /* Simple, single value, entries don't have a stack frame and have a fixed
- * value (it doesn't change once set on the command line). Otherwise the
- * value (entry) selected from the command line is 'all':
- */
- const char *entry_name = options[opt].values[dp->entry[opt]-1].name;
-
- if (entry_name == all)
- (void)advance_opt(dp, opt, 0/*do not search; iterate*/);
-
- else if (record)
- record_opt(dp, opt, entry_name);
-
- *value = dp->value[opt];
- return 1; /* set */
- }
-
- else
- return 0; /* not set */
-}
-
-static int
-getallopts(struct display *dp, const char *opt_str, int *value)
-{
- return getallopts_(dp, option_index(dp, opt_str, strlen(opt_str)), value, 0);
-}
-
-static int
-getsearchopts(struct display *dp, const char *opt_str, int *value)
- /* As above except that if the option was not set try a search */
-{
- png_byte istrat;
- png_byte opt = option_index(dp, opt_str, strlen(opt_str));
- int record = options[opt].search;
- const char *entry_name;
-
- /* If it was set on the command line honour the setting, including 'all'
- * which will override the built in search:
- */
- if (getallopts_(dp, opt, value, record))
- return 1;
-
- else if (!record) /* not a search option */
- return 0; /* unset and not searched */
-
- /* Otherwise decide what to do here. */
- istrat = OPTIND(dp, strategy);
- entry_name = range_lo; /* record the value, not the name */
-
- if (opt == istrat) /* search all strategies */
- (void)advance_opt(dp, opt, 0/*iterate*/), record=0;
-
- else if (opt == OPTIND(dp, level))
- {
- /* Both RLE and HUFFMAN don't benefit from level increases */
- if (dp->value[istrat] == Z_RLE || dp->value[istrat] == Z_HUFFMAN_ONLY)
- dp->value[opt] = 1;
-
- else /* fixed, filtered or default */
- (void)advance_opt(dp, opt, 1/*search*/), record=0;
- }
-
- else if (opt == OPTIND(dp, windowBits))
- {
- /* Changing windowBits for strategies that do not search the window is
- * pointless. Huffman-only does not search, RLE only searches backwards
- * one byte, so given that the maximum string length is 258, a windowBits
- * of 9 is always sufficient.
- */
- if (dp->value[istrat] == Z_HUFFMAN_ONLY)
- dp->value[opt] = 8;
-
- else if (dp->value[istrat] == Z_RLE)
- dp->value[opt] = 9;
-
- else /* fixed, filtered or default */
- (void)advance_opt(dp, opt, 1/*search*/), record=0;
- }
-
- else if (opt == OPTIND(dp, memLevel))
- {
-# if 0
- (void)advance_opt(dp, opt, 0/*all*/), record=0;
-# else
- dp->value[opt] = MAX_MEM_LEVEL;
-# endif
- }
-
- else /* something else */
- assert(0=="reached");
-
- if (record)
- record_opt(dp, opt, entry_name);
-
- /* One of the above searched options: */
- *value = dp->value[opt];
- return 1;
-}
-
-static int
-find_val(struct display *dp, png_byte opt, const char *str, size_t len)
- /* Like option_index but sets (index+i) of the entry in options[opt] that
- * matches str[0..len-1] into dp->entry[opt] as well as returning the actual
- * value.
- */
-{
- int rlo = INT_MAX, rhi = INT_MIN;
- png_byte j, irange = 0;
-
- for (j=1U; j<=options[opt].value_count; ++j)
- {
- if (strncmp(options[opt].values[j-1U].name, str, len) == 0 &&
- options[opt].values[j-1U].name[len] == 0)
- {
- dp->entry[opt] = j;
- return options[opt].values[j-1U].value;
- }
- else if (options[opt].values[j-1U].name == range_lo)
- rlo = options[opt].values[j-1U].value, irange = j;
- else if (options[opt].values[j-1U].name == range_hi)
- rhi = options[opt].values[j-1U].value;
- }
-
- /* No match on the name, but there may be a range. */
- if (irange > 0)
- {
- char *ep = NULL;
- long l = strtol(str, &ep, 0);
-
- if (ep == str+len && l >= rlo && l <= rhi)
- {
- dp->entry[opt] = irange; /* range_lo */
- return (int)/*SAFE*/l;
- }
- }
-
- display_log(dp, dp->errset ? INTERNAL_ERROR : USER_ERROR,
- "%s: unknown value setting '%.*s'", options[opt].name,
- (int)/*SAFE*/len, str);
- abort(); /* NOT REACHED */
-}
-
-static int
-opt_check(struct display *dp, const char *arg)
-{
- assert(dp->errset == 0);
-
- if (arg != NULL && arg[0] == '-' && arg[1] == '-')
- {
- int i = 0, negate = (strncmp(arg+2, "no-", 3) == 0), val;
- png_byte j;
-
- if (negate)
- arg += 5; /* --no- */
-
- else
- arg += 2; /* -- */
-
- /* Find the length (expect arg\0 or arg=) */
- while (arg[i] != 0 && arg[i] != '=') ++i;
-
- /* So arg[0..i-1] is the argument name, this does not return if this isn't
- * a valid option name.
- */
- j = option_index(dp, arg, i);
-
- /* It matcheth an option; check the remainder. */
- if (arg[i] == 0) /* no specified value, use the default */
- {
- val = options[j].values[negate].value;
- dp->entry[j] = (png_byte)/*SAFE*/(negate + 1U);
- }
-
- else
- {
- const char *list = arg + (i+1);
-
- /* Expect a single value here unless this is a list, in which case
- * multiple values are combined.
- */
- if (options[j].opt != LIST)
- {
- /* find_val sets 'dp->entry[j]' to a non-zero value: */
- val = find_val(dp, j, list, strlen(list));
-
- if (negate)
- {
- if (options[j].opt < OPTION)
- val = !val;
-
- else
- {
- display_log(dp, USER_ERROR,
- "%.*s: option=arg cannot be negated", i, arg);
- abort(); /* NOT REACHED */
- }
- }
- }
-
- else /* multiple options separated by ',' characters */
- {
- /* --no-option negates list values from the default, which should
- * therefore be 'all'. Notice that if the option list is empty in
- * this case nothing will be removed and therefore --no-option= is
- * the same as --option.
- */
- if (negate)
- val = options[j].values[0].value;
-
- else
- val = 0;
-
- while (*list != 0) /* allows option= which sets 0 */
- {
- /* A value is terminated by the end of the list or a ','
- * character.
- */
- int v, iv;
-
- iv = 0; /* an index into 'list' */
- while (list[++iv] != 0 && list[iv] != ',') {}
-
- v = find_val(dp, j, list, iv);
-
- if (negate)
- val &= ~v;
-
- else
- val |= v;
-
- list += iv;
- if (*list != 0)
- ++list; /* skip the ',' */
- }
- }
- }
-
- /* 'val' is the new value, store it for use later and debugging: */
- dp->value[j] = val;
-
- if (options[j].opt < LEVEL_MASK)
- {
- /* The handling for error levels is to set the level. */
- if (val) /* Set this level */
- dp->options = (dp->options & ~LEVEL_MASK) | options[j].opt;
-
- else
- display_log(dp, USER_ERROR,
- "%.*s: messages cannot be turned off individually; set a message level",
- i, arg);
- }
-
- else if (options[j].opt < OPTION)
- {
- if (val)
- dp->options |= options[j].opt;
-
- else
- dp->options &= ~options[j].opt;
- }
-
- return 1; /* this is an option */
- }
-
- else
- return 0; /* not an option */
-}
-
-#ifdef PNG_PNGCP_TIMING_SUPPORTED
-static void
-set_timer(struct display *dp, struct timespec *timer)
-{
- /* Do the timing using clock_gettime and the per-process timer. */
- if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, timer))
- {
- display_log(dp, APP_ERROR,
- "CLOCK_PROCESS_CPUTIME_ID: %s: timing disabled\n", strerror(errno));
- dp->value[OPTIND(dp,time)] = 0; /* i.e. off */
- }
-}
-
-static void
-start_timer(struct display *dp, int what)
-{
- if ((dp->value[OPTIND(dp,time)] & what) != 0)
- set_timer(dp, what == PNGCP_TIME_READ ? &dp->read_time : &dp->write_time);
-}
-
-static void
-end_timer(struct display *dp, int what)
-{
- if ((dp->value[OPTIND(dp,time)] & what) != 0)
- {
- struct timespec t, tmp;
-
- set_timer(dp, &t);
-
- if (what == PNGCP_TIME_READ)
- tmp = dp->read_time;
-
- else
- tmp = dp->write_time;
-
- t.tv_sec -= tmp.tv_sec;
- t.tv_nsec -= tmp.tv_nsec;
-
- if (t.tv_nsec < 0)
- {
- --(t.tv_sec);
- t.tv_nsec += 1000000000L;
- }
-
- if (what == PNGCP_TIME_READ)
- dp->read_time = t, tmp = dp->read_time_total;
-
- else
- dp->write_time = t, tmp = dp->write_time_total;
-
- tmp.tv_sec += t.tv_sec;
- tmp.tv_nsec += t.tv_nsec;
-
- if (tmp.tv_nsec >= 1000000000L)
- {
- ++(tmp.tv_sec);
- tmp.tv_nsec -= 1000000000L;
- }
-
- if (what == PNGCP_TIME_READ)
- dp->read_time_total = tmp;
-
- else
- dp->write_time_total = tmp;
- }
-}
-
-static void
-print_time(const char *what, struct timespec t)
-{
- printf("%s %.2lu.%.9ld", what, (unsigned long)t.tv_sec, t.tv_nsec);
-}
-#else /* !PNGCP_TIMING */
-#define start_timer(dp, what) ((void)0)
-#define end_timer(dp, what) ((void)0)
-#endif /* !PNGCP_TIMING */
-
-/* The following is used in main to verify that the final argument is a
- * directory:
- */
-static int
-checkdir(const char *pathname)
-{
- struct stat buf;
- return stat(pathname, &buf) == 0 && S_ISDIR(buf.st_mode);
-}
-
-/* Work out whether a path is valid (if not a display_log occurs), a directory
- * (1 is returned) or a file *or* non-existent (0 is returned).
- *
- * Used for a write path.
- */
-static int
-isdir(struct display *dp, const char *pathname)
-{
- if (pathname == NULL)
- return 0; /* stdout */
-
- else if (pathname[0] == 0)
- return 1; /* empty string */
-
- else
- {
- struct stat buf;
- int ret = stat(pathname, &buf);
-
- if (ret == 0) /* the entry exists */
- {
- if (S_ISDIR(buf.st_mode))
- return 1;
-
- /* Else expect an object that exists and can be written: */
- if (access(pathname, W_OK) != 0)
- display_log(dp, USER_ERROR, "%s: cannot be written (%s)", pathname,
- strerror(errno));
-
- return 0; /* file (exists, can be written) */
- }
-
- else /* an error */
- {
- /* Non-existence is fine, other errors are not: */
- if (errno != ENOENT)
- display_log(dp, USER_ERROR, "%s: invalid output name (%s)",
- pathname, strerror(errno));
-
- return 0; /* file (does not exist) */
- }
- }
-}
-
-static void
-makename(struct display *dp, const char *dir, const char *infile)
-{
- /* Make a name for an output file (and check it). */
- dp->namebuf[0] = 0;
-
- if (dir == NULL || infile == NULL)
- display_log(dp, INTERNAL_ERROR, "NULL name to makename");
-
- else
- {
- size_t dsize = strlen(dir);
-
- if (dsize <= (sizeof dp->namebuf)-2) /* Allow for name + '/' + '\0' */
- {
- size_t isize = strlen(infile);
- size_t istart = isize-1;
-
- /* This should fail before here: */
- if (infile[istart] == '/')
- display_log(dp, INTERNAL_ERROR, "infile with trailing /");
-
- memcpy(dp->namebuf, dir, dsize);
- if (dsize > 0 && dp->namebuf[dsize-1] != '/')
- dp->namebuf[dsize++] = '/';
-
- /* Find the rightmost non-/ character: */
- while (istart > 0 && infile[istart-1] != '/')
- --istart;
-
- isize -= istart;
- infile += istart;
-
- if (dsize+isize < (sizeof dp->namebuf)) /* dsize + infile + '\0' */
- {
- memcpy(dp->namebuf+dsize, infile, isize+1);
-
- if (isdir(dp, dp->namebuf))
- display_log(dp, USER_ERROR, "%s: output file is a directory",
- dp->namebuf);
- }
-
- else
- {
- dp->namebuf[dsize] = 0; /* allowed for: -2 at start */
- display_log(dp, USER_ERROR, "%s%s: output file name too long",
- dp->namebuf, infile);
- }
- }
-
- else
- display_log(dp, USER_ERROR, "%s: output directory name too long", dir);
- }
-}
-
-/* error handler callbacks for libpng */
-static void PNGCBAPI
-display_warning(png_structp pp, png_const_charp warning)
-{
- struct display *dp = get_dp(pp);
-
- /* This is used to prevent repeated warnings while searching */
- if (!dp->no_warnings)
- display_log(get_dp(pp), LIBPNG_WARNING, "%s", warning);
-}
-
-static void PNGCBAPI
-display_error(png_structp pp, png_const_charp error)
-{
- struct display *dp = get_dp(pp);
-
- display_log(dp, LIBPNG_ERROR, "%s", error);
-}
-
-static void
-display_start_read(struct display *dp, const char *filename)
-{
- if (filename != NULL)
- {
- dp->filename = filename;
- dp->fp = fopen(filename, "rb");
- }
-
- else
- {
- dp->filename = "<stdin>";
- dp->fp = stdin;
- }
-
- dp->w = dp->h = 0U;
- dp->bpp = 0U;
- dp->size = 0U;
- dp->read_size = 0U;
-
- if (dp->fp == NULL)
- display_log(dp, USER_ERROR, "file open failed (%s)", strerror(errno));
-}
-
-static void PNGCBAPI
-read_function(png_structp pp, png_bytep data, size_t size)
-{
- struct display *dp = get_dp(pp);
-
- if (size == 0U || fread(data, size, 1U, dp->fp) == 1U)
- dp->read_size += size;
-
- else
- {
- if (feof(dp->fp))
- display_log(dp, LIBPNG_ERROR, "PNG file truncated");
- else
- display_log(dp, LIBPNG_ERROR, "PNG file read failed (%s)",
- strerror(errno));
- }
-}
-
-static void
-read_png(struct display *dp, const char *filename)
-{
- display_clean_read(dp); /* safety */
- display_start_read(dp, filename);
-
- dp->read_pp = png_create_read_struct(PNG_LIBPNG_VER_STRING, dp,
- display_error, display_warning);
- if (dp->read_pp == NULL)
- display_log(dp, LIBPNG_ERROR, "failed to create read struct");
-
-# ifdef PNG_BENIGN_ERRORS_SUPPORTED
- png_set_benign_errors(dp->read_pp, 1/*allowed*/);
-# endif /* BENIGN_ERRORS */
-
-# ifdef FIX_INDEX
- if ((dp->options & FIX_INDEX) != 0)
- png_set_check_for_invalid_index(dp->read_pp, 1/*on, no warning*/);
-# ifdef IGNORE_INDEX
- else
-# endif /* IGNORE_INDEX */
-# endif /* FIX_INDEX */
-# ifdef IGNORE_INDEX
- if ((dp->options & IGNORE_INDEX) != 0) /* DANGEROUS */
- png_set_check_for_invalid_index(dp->read_pp, -1/*off completely*/);
-# endif /* IGNORE_INDEX */
-
- /* The png_read_png API requires us to make the info struct, but it does the
- * call to png_read_info.
- */
- dp->ip = png_create_info_struct(dp->read_pp);
- if (dp->ip == NULL)
- png_error(dp->read_pp, "failed to create info struct");
-
- /* Set the IO handling */
- png_set_read_fn(dp->read_pp, dp, read_function);
-
-# ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
- png_set_keep_unknown_chunks(dp->read_pp, PNG_HANDLE_CHUNK_ALWAYS, NULL,
- 0);
-# endif /* HANDLE_AS_UNKNOWN */
-
-# ifdef PNG_SET_USER_LIMITS_SUPPORTED
- /* Remove the user limits, if any */
- png_set_user_limits(dp->read_pp, 0x7fffffff, 0x7fffffff);
-# endif /* SET_USER_LIMITS */
-
- /* Now read the PNG. */
- start_timer(dp, PNGCP_TIME_READ);
- png_read_png(dp->read_pp, dp->ip, 0U/*transforms*/, NULL/*params*/);
- end_timer(dp, PNGCP_TIME_READ);
- dp->w = png_get_image_width(dp->read_pp, dp->ip);
- dp->h = png_get_image_height(dp->read_pp, dp->ip);
- dp->ct = png_get_color_type(dp->read_pp, dp->ip);
- dp->bpp = png_get_bit_depth(dp->read_pp, dp->ip) *
- png_get_channels(dp->read_pp, dp->ip);
- {
- /* png_get_rowbytes should never return 0 because the value is set by the
- * first call to png_set_IHDR, which should have happened by now, but just
- * in case:
- */
- png_alloc_size_t rb = png_get_rowbytes(dp->read_pp, dp->ip);
-
- if (rb == 0)
- png_error(dp->read_pp, "invalid row byte count from libpng");
-
- /* The size calc can overflow. */
- if ((MAX_SIZE-dp->h)/rb < dp->h)
- png_error(dp->read_pp, "image too large");
-
- dp->size = rb * dp->h + dp->h/*filter byte*/;
- }
-
-#ifdef FIX_INDEX
- if (dp->ct == PNG_COLOR_TYPE_PALETTE && (dp->options & FIX_INDEX) != 0)
- {
- int max = png_get_palette_max(dp->read_pp, dp->ip);
- png_colorp palette = NULL;
- int num = -1;
-
- if (png_get_PLTE(dp->read_pp, dp->ip, &palette, &num) != PNG_INFO_PLTE
- || max < 0 || num <= 0 || palette == NULL)
- display_log(dp, LIBPNG_ERROR, "invalid png_get_PLTE result");
-
- if (max >= num)
- {
- /* 'Fix' the palette. */
- int i;
- png_color newpal[256];
-
- for (i=0; i<num; ++i)
- newpal[i] = palette[i];
-
- /* Fill in any remainder with a warning color: */
- for (; i<=max; ++i)
- {
- newpal[i].red = 0xbe;
- newpal[i].green = 0xad;
- newpal[i].blue = 0xed;
- }
-
- png_set_PLTE(dp->read_pp, dp->ip, newpal, i);
- }
- }
-#endif /* FIX_INDEX */
-
- display_clean_read(dp);
- dp->operation = "none";
-}
-
-static void
-display_start_write(struct display *dp, const char *filename)
-{
- assert(dp->fp == NULL);
-
- if ((dp->options & NOWRITE) != 0)
- dp->output_file = "<no write>";
-
- else
- {
- if (filename != NULL)
- {
- dp->output_file = filename;
- dp->fp = fopen(filename, "wb");
- }
-
- else
- {
- dp->output_file = "<stdout>";
- dp->fp = stdout;
- }
-
- if (dp->fp == NULL)
- display_log(dp, USER_ERROR, "%s: file open failed (%s)",
- dp->output_file, strerror(errno));
- }
-}
-
-static void PNGCBAPI
-write_function(png_structp pp, png_bytep data, size_t size)
-{
- struct display *dp = get_dp(pp);
-
- /* The write fail is classed as a USER_ERROR, so --quiet does not turn it
- * off, this seems more likely to be correct.
- */
- if (dp->fp == NULL || fwrite(data, size, 1U, dp->fp) == 1U)
- {
- dp->write_size += size;
- if (dp->write_size < size || dp->write_size == MAX_SIZE)
- png_error(pp, "IDAT size overflow");
- }
-
- else
- display_log(dp, USER_ERROR, "%s: PNG file write failed (%s)",
- dp->output_file, strerror(errno));
-}
-
-/* Compression option, 'method' is never set: there is no choice.
- *
- * IMPORTANT: the order of the entries in this macro determines the preference
- * order when two different combos of two of these options produce an IDAT of
- * the same size. The logic here is to put the things that affect the decoding
- * of the PNG image ahead of those that are relevant only to the encoding.
- */
-#define SET_COMPRESSION\
- SET(strategy, strategy);\
- SET(windowBits, window_bits);\
- SET(level, level);\
- SET(memLevel, mem_level);
-
-#ifdef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
-static void
-search_compression(struct display *dp)
-{
- /* Like set_compression below but use a more restricted search than 'all' */
- int val;
-
-# define SET(name, func) if (getsearchopts(dp, #name, &val))\
- png_set_compression_ ## func(dp->write_pp, val);
- SET_COMPRESSION
-# undef SET
-}
-
-static void
-set_compression(struct display *dp)
-{
- int val;
-
-# define SET(name, func) if (getallopts(dp, #name, &val))\
- png_set_compression_ ## func(dp->write_pp, val);
- SET_COMPRESSION
-# undef SET
-}
-
-#ifdef PNG_SW_COMPRESS_level /* 1.7.0+ */
-static void
-set_ICC_profile_compression(struct display *dp)
-{
- int val;
-
-# define SET(name, func) if (getallopts(dp, "ICC-profile-" #name, &val))\
- png_set_ICC_profile_compression_ ## func(dp->write_pp, val);
- SET_COMPRESSION
-# undef SET
-}
-#else
-# define set_ICC_profile_compression(dp) ((void)0)
-#endif
-#else
-# define search_compression(dp) ((void)0)
-# define set_compression(dp) ((void)0)
-# define set_ICC_profile_compression(dp) ((void)0)
-#endif /* WRITE_CUSTOMIZE_COMPRESSION */
-
-#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
-static void
-set_text_compression(struct display *dp)
-{
- int val;
-
-# define SET(name, func) if (getallopts(dp, "text-" #name, &val))\
- png_set_text_compression_ ## func(dp->write_pp, val);
- SET_COMPRESSION
-# undef SET
-}
-#else
-# define set_text_compression(dp) ((void)0)
-#endif /* WRITE_CUSTOMIZE_ZTXT_COMPRESSION */
-
-static void
-write_png(struct display *dp, const char *destname)
-{
- display_clean_write(dp); /* safety */
- display_start_write(dp, destname);
-
- dp->write_pp = png_create_write_struct(PNG_LIBPNG_VER_STRING, dp,
- display_error, display_warning);
-
- if (dp->write_pp == NULL)
- display_log(dp, LIBPNG_ERROR, "failed to create write png_struct");
-
-# ifdef PNG_BENIGN_ERRORS_SUPPORTED
- png_set_benign_errors(dp->write_pp, 1/*allowed*/);
-# endif /* BENIGN_ERRORS */
-
- png_set_write_fn(dp->write_pp, dp, write_function, NULL/*flush*/);
-
-#ifdef IGNORE_INDEX
- if ((dp->options & IGNORE_INDEX) != 0) /* DANGEROUS */
- png_set_check_for_invalid_index(dp->write_pp, -1/*off completely*/);
-#endif /* IGNORE_INDEX */
-
- /* Restore the text chunks when using libpng 1.6 or less; this is a macro
- * which expands to nothing in 1.7+ In earlier versions it tests
- * dp->text_stashed, which is only set (below) *after* the first write.
- */
- text_restore(dp);
-
-# ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
- png_set_keep_unknown_chunks(dp->write_pp, PNG_HANDLE_CHUNK_ALWAYS, NULL,
- 0);
-# endif /* HANDLE_AS_UNKNOWN */
-
-# ifdef PNG_SET_USER_LIMITS_SUPPORTED
- /* Remove the user limits, if any */
- png_set_user_limits(dp->write_pp, 0x7fffffff, 0x7fffffff);
-# endif
-
- /* OPTION HANDLING */
- /* compression outputs, IDAT and zTXt/iTXt: */
- dp->tsp = dp->nsp;
- dp->nsp = dp->csp = 0;
-# ifdef PNG_SW_COMPRESS_png_level
- {
- int val;
-
- /* This sets everything, but then the following options just override
- * the specific settings for ICC profiles and text.
- */
- if (getallopts(dp, "compression", &val))
- png_set_compression(dp->write_pp, val);
-
- if (getallopts(dp, "ICC-profile-compression", &val))
- png_set_ICC_profile_compression(dp->write_pp, val);
-
- if (getallopts(dp, "text-compression", &val))
- png_set_text_compression(dp->write_pp, val);
- }
-# endif /* png_level support */
- if (dp->options & SEARCH)
- search_compression(dp);
- else
- set_compression(dp);
- set_ICC_profile_compression(dp);
- set_text_compression(dp);
-
- {
- int val;
-
- /* The permitted range is 1..0x7FFFFFFF, so the cast is safe */
- if (get_option(dp, "IDAT-size", &val))
- png_set_IDAT_size(dp->write_pp, val);
- }
-
- /* filter handling */
-# ifdef PNG_WRITE_FILTER_SUPPORTED
- {
- int val;
-
- if (get_option(dp, "filter", &val))
- png_set_filter(dp->write_pp, PNG_FILTER_TYPE_BASE, val);
- }
-# endif /* WRITE_FILTER */
-
- /* This just uses the 'read' info_struct directly, it contains the image. */
- dp->write_size = 0U;
- start_timer(dp, PNGCP_TIME_WRITE);
- png_write_png(dp->write_pp, dp->ip, 0U/*transforms*/, NULL/*params*/);
- end_timer(dp, PNGCP_TIME_WRITE);
-
- /* Make sure the file was written ok: */
- if (dp->fp != NULL)
- {
- FILE *fp = dp->fp;
- dp->fp = NULL;
- if (fclose(fp))
- display_log(dp, APP_ERROR, "%s: write failed (%s)",
- destname == NULL ? "stdout" : destname, strerror(errno));
- }
-
- /* Clean it on the way out - if control returns to the caller then the
- * written_file contains the required data.
- */
- display_clean_write(dp);
- dp->operation = "none";
-}
-
-static void
-set_windowBits_hi(struct display *dp)
-{
- /* windowBits is in the range 8..15 but zlib maps '8' to '9' so it is only
- * worth using if the data size is 256 byte or less.
- */
- int wb = MAX_WBITS; /* for large images */
- int i = VLSIZE(windowBits_IDAT);
-
- while (wb > 8 && dp->size <= 1U<<(wb-1)) --wb;
-
- while (--i >= 0) if (VLNAME(windowBits_IDAT)[i].name == range_hi) break;
-
- assert(i > 1); /* vl_windowBits_IDAT always has a RANGE() */
- VLNAME(windowBits_IDAT)[i].value = wb;
-
- assert(VLNAME(windowBits_IDAT)[--i].name == range_lo);
- VLNAME(windowBits_IDAT)[i].value = wb > 8 ? 9 : 8;
-
- /* If wb == 8 then any search has been restricted to just one windowBits
- * entry. Record that here to avoid producing a spurious app-level warning
- * above.
- */
- if (wb == 8)
- dp->min_windowBits = OPTIND(dp, windowBits);
-}
-
-static int
-better_options(const struct display *dp)
-{
- /* Are these options better than the best found so far? Normally the
- * options are tested in preference order, best first, however when doing a
- * search operation on a range the range values are tested out of order. In
- * that case preferable options will get tested later.
- *
- * This function looks through the stack from the bottom up looking for an
- * option that does not match the current best value. When it finds one it
- * checks to see if it is more or less desirable and returns true or false
- * as appropriate.
- *
- * Notice that this means that the order options are pushed onto the stack
- * conveys a priority; lower/earlier options are more important than later
- * ones.
- */
- unsigned int sp;
-
- for (sp=0; sp<dp->csp; ++sp)
- {
- int c = compare_option(dp, sp);
-
- if (c < 0)
- return 0; /* worse */
-
- else if (c > 0)
- return 1; /* better */
- }
-
- assert(0 && "unreached");
-}
-
-static void
-print_search_results(struct display *dp)
-{
- assert(dp->filename != NULL);
- printf("%s [%ld x %ld %d bpp %s, %lu bytes] %lu -> %lu with '%s'\n",
- dp->filename, (unsigned long)dp->w, (unsigned long)dp->h, dp->bpp,
- cts(dp->ct), (unsigned long)dp->size, (unsigned long)dp->read_size,
- (unsigned long)dp->best_size, dp->best);
- fflush(stdout);
-}
-
-static void
-log_search(struct display *dp, unsigned int log_depth)
-{
- /* Log, and reset, the search so far: */
- if (dp->nsp/*next entry to change*/ <= log_depth)
- {
- print_search_results(dp);
- /* Start again with this entry: */
- dp->best_size = MAX_SIZE;
- }
-}
-
-static void
-cp_one_file(struct display *dp, const char *filename, const char *destname)
-{
- unsigned int log_depth;
-
- dp->filename = filename;
- dp->operation = "read";
- dp->no_warnings = 0;
-
- /* Read it then write it: */
- if (filename != NULL && access(filename, R_OK) != 0)
- display_log(dp, USER_ERROR, "%s: invalid file name (%s)",
- filename, strerror(errno));
-
- read_png(dp, filename);
-
- /* But 'destname' may be a directory. */
- dp->operation = "write";
-
- /* Limit the upper end of the windowBits range for this file */
- set_windowBits_hi(dp);
-
- /* For logging, depth to log: */
- {
- int val;
-
- if (get_option(dp, "log-depth", &val) && val >= 0)
- log_depth = (unsigned int)/*SAFE*/val;
-
- else
- log_depth = 0U;
- }
-
- if (destname != NULL) /* else stdout */
- {
- if (isdir(dp, destname))
- {
- makename(dp, destname, filename);
- destname = dp->namebuf;
- }
-
- else if (access(destname, W_OK) != 0 && errno != ENOENT)
- display_log(dp, USER_ERROR, "%s: invalid output name (%s)", destname,
- strerror(errno));
- }
-
- dp->nsp = 0;
- dp->curr[0] = 0; /* acts as a flag for the caller */
- dp->opt_string_start = 0;
- dp->best[0] = 0; /* safety */
- dp->best_size = MAX_SIZE;
- write_png(dp, destname);
-
- /* Initialize the 'best' fields: */
- strcpy(dp->best, dp->curr);
- dp->best_size = dp->write_size;
-
- if (dp->nsp > 0) /* iterating over lists */
- {
- char *tmpname, tmpbuf[(sizeof dp->namebuf) + 4];
- assert(dp->curr[0] == ' ' && dp->tsp > 0);
-
- /* Cancel warnings on subsequent writes */
- log_search(dp, log_depth);
- dp->no_warnings = 1;
-
- /* Make a temporary name for the subsequent tests: */
- if (destname != NULL)
- {
- strcpy(tmpbuf, destname);
- strcat(tmpbuf, ".tmp"); /* space for .tmp allocated above */
- tmpname = tmpbuf;
- }
-
- else
- tmpname = NULL; /* stdout */
-
- /* Loop to find the best option. */
- do
- {
- write_png(dp, tmpname);
-
- /* And compare the sizes (the write function makes sure write_size
- * doesn't overflow.)
- */
- assert(dp->csp > 0);
-
- if (dp->write_size < dp->best_size ||
- (dp->write_size == dp->best_size && better_options(dp)))
- {
- if (destname != NULL && rename(tmpname, destname) != 0)
- display_log(dp, APP_ERROR, "rename %s %s failed (%s)", tmpname,
- destname, strerror(errno));
-
- strcpy(dp->best, dp->curr);
- dp->best_size = dp->write_size;
- }
-
- else if (tmpname != NULL && unlink(tmpname) != 0)
- display_log(dp, APP_WARNING, "unlink %s failed (%s)", tmpname,
- strerror(errno));
-
- log_search(dp, log_depth);
- }
- while (dp->nsp > 0);
-
- /* Do this for the 'sizes' option so that it reports the correct size. */
- dp->write_size = dp->best_size;
- }
-}
-
-static int
-cppng(struct display *dp, const char *file, const char *gv dest)
- /* Exists solely to isolate the setjmp clobbers which some versions of GCC
- * erroneously generate.
- */
-{
- int ret = setjmp(dp->error_return);
-
- if (ret == 0)
- {
- dp->errset = 1;
- cp_one_file(dp, file, dest);
- dp->errset = 0;
- return 0;
- }
-
- else
- {
- dp->errset = 0;
-
- if (ret < ERRORS) /* shouldn't longjmp on warnings */
- display_log(dp, INTERNAL_ERROR, "unexpected return code %d", ret);
-
- return ret;
- }
-}
-
-int
-main(int argc, char **argv)
-{
- /* For each file on the command line test it with a range of transforms */
- int option_end;
- struct display d;
-
- display_init(&d);
-
- d.operation = "options";
- for (option_end = 1;
- option_end < argc && opt_check(&d, argv[option_end]);
- ++option_end)
- {
- }
-
- /* Do a quick check on the directory target case; when there are more than
- * two arguments the last one must be a directory.
- */
- if (!(d.options & NOWRITE) && option_end+2 < argc && !checkdir(argv[argc-1]))
- {
- fprintf(stderr,
- "pngcp: %s: directory required with more than two arguments\n",
- argv[argc-1]);
- return 99;
- }
-
- {
- int errors = 0;
- int i = option_end;
-
- /* Do this at least once; if there are no arguments stdin/stdout are used.
- */
- d.operation = "files";
- do
- {
- const char *infile = NULL;
- const char *outfile = NULL;
- int ret;
-
- if (i < argc)
- {
- infile = argv[i++];
- if (!(d.options & NOWRITE) && i < argc)
- outfile = argv[argc-1];
- }
-
- ret = cppng(&d, infile, outfile);
-
- if (ret)
- {
- if (ret > QUIET) /* abort on user or internal error */
- return 99;
-
- /* An error: the output is meaningless */
- }
-
- else if (d.best[0] != 0)
- {
- /* This result may already have been output, in which case best_size
- * has been reset.
- */
- if (d.best_size < MAX_SIZE)
- print_search_results(&d);
- }
-
- else if (d.options & SIZES)
- {
- printf("%s [%ld x %ld %d bpp %s, %lu bytes] %lu -> %lu [0x%lx]\n",
- infile, (unsigned long)d.w, (unsigned long)d.h, d.bpp,
- cts(d.ct), (unsigned long)d.size, (unsigned long)d.read_size,
- (unsigned long)d.write_size, (unsigned long)d.results);
- fflush(stdout);
- }
-
- /* Here on any return, including failures, except user/internal issues
- */
- {
- int pass = (d.options & STRICT) ?
- RESULT_STRICT(d.results) : RESULT_RELAXED(d.results);
-
- if (!pass)
- ++errors;
-
- if (d.options & LOG)
- {
- int j;
-
- printf("%s: pngcp", pass ? "PASS" : "FAIL");
-
- for (j=1; j<option_end; ++j)
- printf(" %s", argv[j]);
-
- if (infile != NULL)
- printf(" %s", infile);
-
-# ifdef PNG_PNGCP_TIMING_SUPPORTED
- /* When logging output the files for each file, if enabled. */
- if ((d.value[OPTIND(&d,time)] & PNGCP_TIME_READ) != 0)
- print_time(" read", d.read_time);
-
- if ((d.value[OPTIND(&d,time)] & PNGCP_TIME_WRITE) != 0)
- print_time(" write", d.write_time);
-# endif /* PNGCP_TIMING */
-
- printf("\n");
- fflush(stdout);
- }
- }
-
- display_clean(&d);
- }
- while (i+!(d.options & NOWRITE) < argc);
- /* I.e. for write cases after the first time through the loop require
- * there to be at least two arguments left and for the last one to be a
- * directory (this was checked above).
- */
-
- /* Release allocated memory */
- display_destroy(&d);
-
-# ifdef PNG_PNGCP_TIMING_SUPPORTED
- {
- int output = 0;
-
- if ((d.value[OPTIND(&d,time)] & PNGCP_TIME_READ) != 0)
- print_time("read", d.read_time_total), output = 1;
-
- if ((d.value[OPTIND(&d,time)] & PNGCP_TIME_WRITE) != 0)
- {
- if (output) putchar(' ');
- print_time("write", d.write_time_total);
- output = 1;
- }
-
- if (output) putchar('\n');
- }
-# endif /* PNGCP_TIMING */
-
- return errors != 0;
- }
-}
-#else /* !READ_PNG || !WRITE_PNG */
-int
-main(void)
-{
- fprintf(stderr, "pngcp: no support for png_read/write_image\n");
- return 77;
-}
-#endif /* !READ_PNG || !WRITE_PNG */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/pngcp.o b/3rdparty/libpng/libpng-1.6.37/contrib/tools/pngcp.o
deleted file mode 100644
index cd495b5..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/pngcp.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/pngfix.c b/3rdparty/libpng/libpng-1.6.37/contrib/tools/pngfix.c
deleted file mode 100644
index 2fa5d13..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/pngfix.c
+++ /dev/null
@@ -1,4049 +0,0 @@
-/* pngfix.c
- *
- * Last changed in libpng 1.6.31 [July 27, 2017]
- * Copyright (c) 2014-2017 John Cunningham Bowler
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Tool to check and fix the zlib inflate 'too far back' problem.
- * See the usage message for more information.
- */
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
-#include <limits.h>
-#include <errno.h>
-#include <assert.h>
-
-#define implies(x,y) assert(!(x) || (y))
-
-#ifdef __GNUC__
- /* This is used to fix the error:
- *
- * pngfix.c:
- * In function 'zlib_advance':
- * pngfix.c:181:13: error: assuming signed overflow does not
- * occur when simplifying conditional to constant [-Werror=strict-overflow]
- */
-# define FIX_GCC volatile
-#else
-# define FIX_GCC
-#endif
-
-#define PROGRAM_NAME "pngfix"
-
-/* Define the following to use this program against your installed libpng,
- * rather than the one being built here:
- */
-#ifdef PNG_FREESTANDING_TESTS
-# include <png.h>
-#else
-# include "../../png.h"
-#endif
-
-#if PNG_LIBPNG_VER < 10603 /* 1.6.3 */
-# error "pngfix will not work with libpng prior to 1.6.3"
-#endif
-
-#ifdef PNG_SETJMP_SUPPORTED
-#include <setjmp.h>
-
-#if defined(PNG_READ_SUPPORTED) && defined(PNG_EASY_ACCESS_SUPPORTED) &&\
- (defined(PNG_READ_DEINTERLACE_SUPPORTED) ||\
- defined(PNG_READ_INTERLACING_SUPPORTED))
-
-/* zlib.h defines the structure z_stream, an instance of which is included
- * in this structure and is required for decompressing the LZ compressed
- * data in PNG files.
- */
-#ifndef ZLIB_CONST
- /* We must ensure that zlib uses 'const' in declarations. */
-# define ZLIB_CONST
-#endif
-#include <zlib.h>
-#ifdef const
- /* zlib.h sometimes #defines const to nothing, undo this. */
-# undef const
-#endif
-
-/* zlib.h has mediocre z_const use before 1.2.6, this stuff is for compatibility
- * with older builds.
- */
-#if ZLIB_VERNUM < 0x1260
-# define PNGZ_MSG_CAST(s) constcast(char*,s)
-# define PNGZ_INPUT_CAST(b) constcast(png_bytep,b)
-#else
-# define PNGZ_MSG_CAST(s) (s)
-# define PNGZ_INPUT_CAST(b) (b)
-#endif
-
-#ifndef PNG_MAXIMUM_INFLATE_WINDOW
-# error "pngfix not supported in this libpng version"
-#endif
-
-#if ZLIB_VERNUM >= 0x1240
-
-/* Copied from pngpriv.h */
-#ifdef __cplusplus
-# define voidcast(type, value) static_cast<type>(value)
-# define constcast(type, value) const_cast<type>(value)
-# define aligncast(type, value) \
- static_cast<type>(static_cast<void*>(value))
-# define aligncastconst(type, value) \
- static_cast<type>(static_cast<const void*>(value))
-#else
-# define voidcast(type, value) (value)
-# define constcast(type, value) ((type)(value))
-# define aligncast(type, value) ((void*)(value))
-# define aligncastconst(type, value) ((const void*)(value))
-#endif /* __cplusplus */
-
-#if PNG_LIBPNG_VER < 10700
-/* Chunk tags (copied from pngpriv.h) */
-#define PNG_32b(b,s) ((png_uint_32)(b) << (s))
-#define PNG_U32(b1,b2,b3,b4) \
- (PNG_32b(b1,24) | PNG_32b(b2,16) | PNG_32b(b3,8) | PNG_32b(b4,0))
-
-/* Constants for known chunk types. */
-#define png_IDAT PNG_U32( 73, 68, 65, 84)
-#define png_IEND PNG_U32( 73, 69, 78, 68)
-#define png_IHDR PNG_U32( 73, 72, 68, 82)
-#define png_PLTE PNG_U32( 80, 76, 84, 69)
-#define png_bKGD PNG_U32( 98, 75, 71, 68)
-#define png_cHRM PNG_U32( 99, 72, 82, 77)
-#define png_fRAc PNG_U32(102, 82, 65, 99) /* registered, not defined */
-#define png_gAMA PNG_U32(103, 65, 77, 65)
-#define png_gIFg PNG_U32(103, 73, 70, 103)
-#define png_gIFt PNG_U32(103, 73, 70, 116) /* deprecated */
-#define png_gIFx PNG_U32(103, 73, 70, 120)
-#define png_hIST PNG_U32(104, 73, 83, 84)
-#define png_iCCP PNG_U32(105, 67, 67, 80)
-#define png_iTXt PNG_U32(105, 84, 88, 116)
-#define png_oFFs PNG_U32(111, 70, 70, 115)
-#define png_pCAL PNG_U32(112, 67, 65, 76)
-#define png_pHYs PNG_U32(112, 72, 89, 115)
-#define png_sBIT PNG_U32(115, 66, 73, 84)
-#define png_sCAL PNG_U32(115, 67, 65, 76)
-#define png_sPLT PNG_U32(115, 80, 76, 84)
-#define png_sRGB PNG_U32(115, 82, 71, 66)
-#define png_sTER PNG_U32(115, 84, 69, 82)
-#define png_tEXt PNG_U32(116, 69, 88, 116)
-#define png_tIME PNG_U32(116, 73, 77, 69)
-#define png_tRNS PNG_U32(116, 82, 78, 83)
-#define png_zTXt PNG_U32(122, 84, 88, 116)
-#endif
-
-/* The 8-byte signature as a pair of 32-bit quantities */
-#define sig1 PNG_U32(137, 80, 78, 71)
-#define sig2 PNG_U32( 13, 10, 26, 10)
-
-/* Is the chunk critical? */
-#define CRITICAL(chunk) (((chunk) & PNG_U32(32,0,0,0)) == 0)
-
-/* Is it safe to copy? */
-#define SAFE_TO_COPY(chunk) (((chunk) & PNG_U32(0,0,0,32)) != 0)
-
-/* Fix ups for builds with limited read support */
-#ifndef PNG_ERROR_TEXT_SUPPORTED
-# define png_error(a,b) png_err(a)
-#endif
-
-/********************************* UTILITIES **********************************/
-/* UNREACHED is a value to cause an assert to fail. Because of the way the
- * assert macro is written the string "UNREACHED" is produced in the error
- * message.
- */
-#define UNREACHED 0
-
-/* 80-bit number handling - a PNG image can be up to (2^31-1)x(2^31-1) 8-byte
- * (16-bit RGBA) pixels in size; that's less than 2^65 bytes or 2^68 bits, so
- * arithmetic of 80-bit numbers is sufficient. This representation uses an
- * arbitrary length array of png_uint_16 digits (0..65535). The representation
- * is little endian.
- *
- * The arithmetic functions take zero to two uarb values together with the
- * number of digits in those values and write the result to the given uarb
- * (always the first argument) returning the number of digits in the result.
- * If the result is negative the return value is also negative (this would
- * normally be an error).
- */
-typedef png_uint_16 udigit; /* A 'unum' is an array of these */
-typedef png_uint_16p uarb;
-typedef png_const_uint_16p uarbc;
-
-#define UDIGITS(unum) ((sizeof unum)/(sizeof (udigit))
- /* IMPORTANT: only apply this to an array, applied to a pointer the result
- * will typically be '2', which is not useful.
- */
-
-static int
-uarb_set(uarb result, png_alloc_size_t val)
- /* Set (initialize) 'result' to 'val'. The size required for 'result' must
- * be determined by the caller from a knowledge of the maximum for 'val'.
- */
-{
- int ndigits = 0;
-
- while (val > 0)
- {
- result[ndigits++] = (png_uint_16)(val & 0xffff);
- val >>= 16;
- }
-
- return ndigits;
-}
-
-static int
-uarb_copy(uarb to, uarb from, int idigits)
- /* Copy a uarb, may reduce the digit count */
-{
- int d, odigits;
-
- for (d=odigits=0; d<idigits; ++d)
- if ((to[d] = from[d]) != 0)
- odigits = d+1;
-
- return odigits;
-}
-
-static int
-uarb_inc(uarb num, int in_digits, png_int_32 add)
- /* This is a signed 32-bit add, except that to avoid overflow the value added
- * or subtracted must be no more than 2^31-65536. A negative result
- * indicates a negative number (which is an error below). The size of
- * 'num' should be max(in_digits+1,2) for arbitrary 'add' but can be just
- * in_digits+1 if add is known to be in the range -65535..65535.
- */
-{
- FIX_GCC int out_digits = 0;
-
- while (out_digits < in_digits)
- {
- add += num[out_digits];
- num[out_digits++] = (png_uint_16)(add & 0xffff);
- add >>= 16;
- }
-
- while (add != 0 && add != (-1))
- {
- num[out_digits++] = (png_uint_16)(add & 0xffff);
- add >>= 16;
- }
-
- if (add == 0)
- {
- while (out_digits > 0 && num[out_digits-1] == 0)
- --out_digits;
- return out_digits; /* may be 0 */
- }
-
- else /* negative result */
- {
- while (out_digits > 1 && num[out_digits-1] == 0xffff)
- --out_digits;
-
- return -out_digits;
- }
-}
-
-static int
-uarb_add32(uarb num, int in_digits, png_uint_32 add)
- /* As above but this works with any 32-bit value and only does 'add' */
-{
- if (in_digits > 0)
- {
- in_digits = uarb_inc(num, in_digits, add & 0xffff);
- return uarb_inc(num+1, in_digits-1, add >> 16)+1;
- }
-
- return uarb_set(num, add);
-}
-
-static int
-uarb_mult_digit(uarb acc, int a_digits, uarb num, FIX_GCC int n_digits,
- png_uint_16 val)
- /* Primitive one-digit multiply - 'val' must be 0..65535. Note that this
- * primitive is a multiply and accumulate - the result of *num * val is added
- * to *acc.
- *
- * This is a one-digit multiply, so the product may be up to one digit longer
- * than 'num', however the add to 'acc' means that the caller must ensure
- * that 'acc' is at least one digit longer than this *and* at least one digit
- * longer than the current length of 'acc'. (Or the caller must otherwise
- * ensure 'adigits' is adequate from knowledge of the values.)
- */
-{
- /* The digits in *acc, *num and val are in the range 0..65535, so the
- * result below is at most (65535*65535)+2*65635 = 65535*(65535+2), which is
- * exactly 0xffffffff.
- */
- if (val > 0 && n_digits > 0) /* Else the product is 0 */
- {
- png_uint_32 carry = 0;
- int out_digits = 0;
-
- while (out_digits < n_digits || carry > 0)
- {
- if (out_digits < a_digits)
- carry += acc[out_digits];
-
- if (out_digits < n_digits)
- carry += (png_uint_32)num[out_digits] * val;
-
- acc[out_digits++] = (png_uint_16)(carry & 0xffff);
- carry >>= 16;
- }
-
- /* So carry is 0 and all the input digits have been consumed. This means
- * that it is possible to skip any remaining digits in acc.
- */
- if (out_digits > a_digits)
- return out_digits;
- }
-
- return a_digits;
-}
-
-static int
-uarb_mult32(uarb acc, int a_digits, uarb num, int n_digits, png_uint_32 val)
- /* calculate acc += num * val, 'val' may be any 32-bit value, 'acc' and 'num'
- * may be any value, returns the number of digits in 'acc'.
- */
-{
- if (n_digits > 0 && val > 0)
- {
- a_digits = uarb_mult_digit(acc, a_digits, num, n_digits,
- (png_uint_16)(val & 0xffff));
-
- val >>= 16;
- if (val > 0)
- a_digits = uarb_mult_digit(acc+1, a_digits-1, num, n_digits,
- (png_uint_16)val) + 1;
-
- /* Because n_digits and val are >0 the following must be true: */
- assert(a_digits > 0);
- }
-
- return a_digits;
-}
-
-static int
-uarb_shift(uarb inout, int ndigits, unsigned int right_shift)
- /* Shift inout right by right_shift bits, right_shift must be in the range
- * 1..15
- */
-{
- FIX_GCC int i = ndigits;
- png_uint_16 carry = 0;
-
- assert(right_shift >= 1 && right_shift <= 15);
-
- while (--i >= 0)
- {
- png_uint_16 temp = (png_uint_16)(carry | (inout[i] >> right_shift));
-
- /* Bottom bits to top bits of carry */
- carry = (png_uint_16)((inout[i] << (16-right_shift)) & 0xffff);
-
- inout[i] = temp;
-
- /* The shift may reduce ndigits */
- if (i == ndigits-1 && temp == 0)
- ndigits = i;
- }
-
- return ndigits;
-}
-
-static int
-uarb_cmp(uarb a, int adigits, uarb b, int bdigits)
- /* Return -1/0/+1 according as a<b/a==b/a>b */
-{
- if (adigits < bdigits)
- return -1;
-
- if (adigits > bdigits)
- return 1;
-
- while (adigits-- > 0)
- if (a[adigits] < b[adigits])
- return -1;
-
- else if (a[adigits] > b[adigits])
- return 1;
-
- return 0;
-}
-
-#if 0 /*UNUSED*/
-static int
-uarb_eq32(uarb num, int digits, png_uint_32 val)
- /* Return true if the uarb is equal to 'val' */
-{
- switch (digits)
- {
- case 0: return val == 0;
- case 1: return val == num[0];
- case 2: return (val & 0xffff) == num[0] && (val >> 16) == num[1];
- default: return 0;
- }
-}
-#endif
-
-static void
-uarb_printx(uarb num, int digits, FILE *out)
- /* Print 'num' as a hexadecimal number (easier than decimal!) */
-{
- while (digits > 0)
- if (num[--digits] > 0)
- {
- fprintf(out, "0x%x", num[digits]);
-
- while (digits > 0)
- fprintf(out, "%.4x", num[--digits]);
- }
-
- else if (digits == 0) /* the number is 0 */
- fputs("0x0", out);
-}
-
-static void
-uarb_print(uarb num, int digits, FILE *out)
- /* Prints 'num' as a decimal if it will fit in an unsigned long, else as a
- * hexadecimal number. Notice that the results vary for images over 4GByte
- * in a system dependent way, and the hexadecimal form doesn't work very well
- * in awk script input.
- *
- *
- * TODO: write uarb_div10
- */
-{
- if (digits * sizeof (udigit) > sizeof (unsigned long))
- uarb_printx(num, digits, out);
-
- else
- {
- unsigned long n = 0;
-
- while (digits > 0)
- n = (n << 16) + num[--digits];
-
- fprintf(out, "%lu", n);
- }
-}
-
-/* Generate random bytes. This uses a boring repeatable algorithm and it
- * is implemented here so that it gives the same set of numbers on every
- * architecture. It's a linear congruential generator (Knuth or Sedgewick
- * "Algorithms") but it comes from the 'feedback taps' table in Horowitz and
- * Hill, "The Art of Electronics" (Pseudo-Random Bit Sequences and Noise
- * Generation.)
- *
- * (Copied from contrib/libtests/pngvalid.c)
- */
-static void
-make_random_bytes(png_uint_32* seed, void* pv, size_t size)
-{
- png_uint_32 u0 = seed[0], u1 = seed[1];
- png_bytep bytes = voidcast(png_bytep, pv);
-
- /* There are thirty-three bits; the next bit in the sequence is bit-33 XOR
- * bit-20. The top 1 bit is in u1, the bottom 32 are in u0.
- */
- size_t i;
- for (i=0; i<size; ++i)
- {
- /* First generate 8 new bits then shift them in at the end. */
- png_uint_32 u = ((u0 >> (20-8)) ^ ((u1 << 7) | (u0 >> (32-7)))) & 0xff;
- u1 <<= 8;
- u1 |= u0 >> 24;
- u0 <<= 8;
- u0 |= u;
- *bytes++ = (png_byte)u;
- }
-
- seed[0] = u0;
- seed[1] = u1;
-}
-
-/* Clear an object to a random value. */
-static void
-clear(void *pv, size_t size)
-{
- static png_uint_32 clear_seed[2] = { 0x12345678, 0x9abcdef0 };
- make_random_bytes(clear_seed, pv, size);
-}
-
-#define CLEAR(object) clear(&(object), sizeof (object))
-
-/* Copied from unreleased 1.7 code.
- *
- * CRC checking uses a local pre-built implementation of the Ethernet CRC32.
- * This is to avoid a function call to the zlib DLL and to optimize the
- * byte-by-byte case.
- */
-static png_uint_32 crc_table[256] =
-{
- 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
- 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
- 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
- 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
- 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
- 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
- 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
- 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
- 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
- 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
- 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
- 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
- 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
- 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
- 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
- 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
- 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
- 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
- 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
- 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
- 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
- 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
- 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
- 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
- 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
- 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
- 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
- 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
- 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
- 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
- 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
- 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
- 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
- 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
- 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
- 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
- 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
- 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
- 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
- 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
- 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
- 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
- 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
- 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
- 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
- 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
- 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
- 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
- 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
- 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
- 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
- 0x2d02ef8d
-};
-
-/* The CRC calculated here *IS* conditioned, the corresponding value used by
- * zlib and the result value is obtained by XORing with CRC_INIT, which is also
- * the first value that must be passed in (for the first byte) to crc_one_byte.
- */
-#define CRC_INIT 0xffffffff
-
-static png_uint_32
-crc_one_byte(png_uint_32 crc, int b)
-{
- return crc_table[(crc ^ b) & 0xff] ^ (crc >> 8);
-}
-
-static png_uint_32
-crc_init_4(png_uint_32 value)
-{
- /* This is an alternative to the algorithm used in zlib, which requires four
- * separate tables to parallelize the four byte operations, it only works for
- * a CRC of the first four bytes of the stream, but this is what happens in
- * the parser below where length+chunk-name is read and chunk-name used to
- * initialize the CRC. Notice that the calculation here avoids repeated
- * conditioning (xor with 0xffffffff) by storing the conditioned value.
- */
- png_uint_32 crc = crc_table[(~value >> 24)] ^ 0xffffff;
-
- crc = crc_table[(crc ^ (value >> 16)) & 0xff] ^ (crc >> 8);
- crc = crc_table[(crc ^ (value >> 8)) & 0xff] ^ (crc >> 8);
- return crc_table[(crc ^ value) & 0xff] ^ (crc >> 8);
-}
-
-static int
-chunk_type_valid(png_uint_32 c)
- /* Bit whacking approach to chunk name validation that is intended to avoid
- * branches. The cost is that it uses a lot of 32-bit constants, which might
- * be bad on some architectures.
- */
-{
- png_uint_32 t;
-
- /* Remove bit 5 from all but the reserved byte; this means every
- * 8-bit unit must be in the range 65-90 to be valid. So bit 5
- * must be zero, bit 6 must be set and bit 7 zero.
- */
- c &= ~PNG_U32(32,32,0,32);
- t = (c & ~0x1f1f1f1f) ^ 0x40404040;
-
- /* Subtract 65 for each 8-bit quantity, this must not overflow
- * and each byte must then be in the range 0-25.
- */
- c -= PNG_U32(65,65,65,65);
- t |=c ;
-
- /* Subtract 26, handling the overflow which should set the top
- * three bits of each byte.
- */
- c -= PNG_U32(25,25,25,26);
- t |= ~c;
-
- return (t & 0xe0e0e0e0) == 0;
-}
-
-/**************************** CONTROL INFORMATION *****************************/
-
-/* Information about a sequence of IDAT chunks, the chunks have been re-synced
- * using sync_stream below and the new lengths are recorded here. Because the
- * number of chunks is unlimited this is handled using a linked list of these
- * structures.
- */
-struct IDAT_list
-{
- struct IDAT_list *next; /* Linked list */
- unsigned int length; /* Actual length of the array below */
- unsigned int count; /* Number of entries that are valid */
-# define IDAT_INIT_LENGTH 16
- png_uint_32 lengths[IDAT_INIT_LENGTH];
-};
-
-static void
-IDAT_list_init(struct IDAT_list *list)
-{
- CLEAR(*list);
-
- list->next = NULL;
- list->length = IDAT_INIT_LENGTH;
-}
-
-static size_t
-IDAT_list_size(struct IDAT_list *list, unsigned int length)
- /* Return the size in bytes of an IDAT_list of the given length. */
-{
- if (list != NULL)
- length = list->length;
-
- return sizeof *list - sizeof list->lengths +
- length * sizeof list->lengths[0];
-}
-
-static void
-IDAT_list_end(struct IDAT_list *IDAT_list)
-{
- struct IDAT_list *list = IDAT_list->next;
-
- CLEAR(*IDAT_list);
-
- while (list != NULL)
- {
- struct IDAT_list *next = list->next;
-
- clear(list, IDAT_list_size(list, 0));
- free(list);
- list = next;
- }
-}
-
-static struct IDAT_list *
-IDAT_list_extend(struct IDAT_list *tail)
-{
- /* Use the previous cached value if available. */
- struct IDAT_list *next = tail->next;
-
- if (next == NULL)
- {
- /* Insert a new, malloc'ed, block of IDAT information buffers, this
- * one twice as large as the previous one:
- */
- unsigned int length = 2 * tail->length;
-
- if (length < tail->length) /* arithmetic overflow */
- length = tail->length;
-
- next = voidcast(IDAT_list*, malloc(IDAT_list_size(NULL, length)));
- CLEAR(*next);
-
- /* The caller must handle this: */
- if (next == NULL)
- return NULL;
-
- next->next = NULL;
- next->length = length;
- tail->next = next;
- }
-
- return next;
-}
-
-/* GLOBAL CONTROL STRUCTURE */
-struct global
-{
- /* PUBLIC GLOBAL VARIABLES: OWNER INITIALIZE */
- unsigned int errors :1; /* print file errors to stderr */
- unsigned int warnings :1; /* print libpng warnings to stderr */
- unsigned int optimize_zlib :1; /* Run optimization search */
- unsigned int quiet :2; /* don't output summaries */
- unsigned int verbose :3; /* various internal tracking */
- unsigned int skip :3; /* Non-critical chunks to skip */
-# define SKIP_NONE 0
-# define SKIP_BAD_CRC 1 /* Chunks with a bad CRC */
-# define SKIP_UNSAFE 2 /* Chunks not safe to copy */
-# define SKIP_UNUSED 3 /* Chunks not used by libpng */
-# define SKIP_TRANSFORM 4 /* Chunks only used in transforms */
-# define SKIP_COLOR 5 /* Everything but tRNS, sBIT, gAMA and sRGB */
-# define SKIP_ALL 6 /* Everything but tRNS and sBIT */
-
- png_uint_32 idat_max; /* 0 to perform no re-chunking */
-
- int status_code; /* Accumulated status code */
-# define TOO_FAR_BACK 0x01 /* found a too-far-back error */
-# define CRC_ERROR 0x02 /* fixed an invalid CRC */
-# define STREAM_ERROR 0x04 /* damaged PNG stream (may be fixable) */
-# define TRUNCATED 0x08 /* truncated but still readable */
-# define FILE_ERROR 0x10 /* could not read the file */
-# define WRITE_ERROR 0x20 /* write error (this terminates the read) */
-# define INTERNAL_ERROR 0x40 /* internal limits/errors encountered */
-
- /* PUBLIC GLOBAL VARIABLES: USED INTERNALLY BY IDAT READ CODE */
- struct IDAT_list idat_cache; /* Cache of file IDAT information buffers */
- /* The structure is shared across all uses of this global control
- * structure to avoid reallocation between IDAT streams.
- */
-};
-
-static int
-global_end(struct global *global)
-{
-
- int rc;
-
- IDAT_list_end(&global->idat_cache);
- rc = global->status_code;
- CLEAR(*global);
- return rc;
-}
-
-static void
-global_init(struct global *global)
- /* Call this once (and only once) to initialize the control */
-{
- CLEAR(*global);
-
- /* Globals */
- global->errors = 0;
- global->warnings = 0;
- global->quiet = 0;
- global->verbose = 0;
- global->idat_max = 0; /* no re-chunking of IDAT */
- global->optimize_zlib = 0;
- global->skip = SKIP_NONE;
- global->status_code = 0;
-
- IDAT_list_init(&global->idat_cache);
-}
-
-static int
-skip_chunk_type(const struct global *global, png_uint_32 type)
- /* Return true if this chunk is to be skipped according to the --strip
- * option. This code needs to recognize all known ancillary chunks in order
- * to handle the --strip=unsafe option.
- */
-{
- /* Never strip critical chunks: */
- if (CRITICAL(type))
- return 0;
-
- switch (type)
- {
- /* Chunks that are treated as, effectively, critical because they affect
- * correct interpretation of the pixel values:
- */
- case png_tRNS: case png_sBIT:
- return 0;
-
- /* Chunks that specify gamma encoding which should therefore only be
- * removed if the user insists:
- */
- case png_gAMA: case png_sRGB:
- if (global->skip >= SKIP_ALL)
- return 1;
- return 0;
-
- /* Chunks that affect color interpretation - not used by libpng and rarely
- * used by applications, but technically still required for correct
- * interpretation of the image data:
- */
- case png_cHRM: case png_iCCP:
- if (global->skip >= SKIP_COLOR)
- return 1;
- return 0;
-
- /* Other chunks that are used by libpng in image transformations (as
- * opposed to known chunks that have get/set APIs but are not otherwise
- * used.)
- */
- case png_bKGD:
- if (global->skip >= SKIP_TRANSFORM)
- return 1;
- return 0;
-
- /* All other chunks that libpng knows about and affect neither image
- * interpretation nor libpng transforms - chunks that are effectively
- * unused by libpng even though libpng might recognize and store them.
- */
- case png_fRAc: case png_gIFg: case png_gIFt: case png_gIFx: case png_hIST:
- case png_iTXt: case png_oFFs: case png_pCAL: case png_pHYs: case png_sCAL:
- case png_sPLT: case png_sTER: case png_tEXt: case png_tIME: case png_zTXt:
- if (global->skip >= SKIP_UNUSED)
- return 1;
- return 0;
-
- /* Chunks that libpng does not know about (notice that this depends on the
- * list above including all known chunks!) The decision here depends on
- * whether the safe-to-copy bit is set in the chunk type.
- */
- default:
- if (SAFE_TO_COPY(type))
- {
- if (global->skip >= SKIP_UNUSED) /* as above */
- return 1;
- }
-
- else if (global->skip >= SKIP_UNSAFE)
- return 1;
-
- return 0;
- }
-}
-
-/* PER-FILE CONTROL STRUCTURE */
-struct chunk;
-struct IDAT;
-struct file
-{
- /* ANCESTORS */
- struct global *global;
-
- /* PUBLIC PER-FILE VARIABLES: CALLER INITIALIZE */
- const char * file_name;
- const char * out_name; /* Name of output file (if required) */
-
- /* PUBLIC PER-FILE VARIABLES: SET BY PNG READ CODE */
- /* File specific result codes */
- int status_code; /* Set to a bit mask of the following: */
- int read_errno; /* Records a read error errno */
- int write_errno; /* Records a write error errno */
-
- /* IHDR information */
- png_uint_32 width;
- png_uint_32 height;
- png_byte bit_depth;
- png_byte color_type;
- png_byte compression_method;
- png_byte filter_method;
- png_byte interlace_method;
-
- udigit image_bytes[5];
- int image_digits;
-
- /* PROTECTED PER-FILE VARIABLES: USED BY THE READ CODE */
- FILE * file; /* Original PNG file */
- FILE * out; /* If a new one is being written */
- jmp_buf jmpbuf; /* Set while reading a PNG */
-
- /* PROTECTED CHUNK SPECIFIC VARIABLES: USED BY CHUNK CODE */
- /* The following variables are used during reading to record the length, type
- * and data position of the *next* chunk or, right at the start, the
- * signature (in length,type).
- *
- * When a chunk control structure is instantiated these values are copied
- * into the structure and can then be overritten with the data for the next
- * chunk.
- */
- fpos_t data_pos; /* Position of first byte of chunk data */
- png_uint_32 length; /* First word (length or signature start) */
- png_uint_32 type; /* Second word (type or signature end) */
- png_uint_32 crc; /* Running chunk CRC (used by read_chunk) */
-
- /* These counts are maintained by the read and write routines below and are
- * reset by the chunk handling code. They record the total number of bytes
- * read or written for the chunk, including the header (length,type) bytes.
- */
- png_uint_32 read_count; /* Count of bytes read (in the chunk) */
- png_uint_32 write_count; /* Count of bytes written (in the chunk) */
- int state; /* As defined here: */
-# define STATE_SIGNATURE 0 /* The signature is being written */
-# define STATE_CHUNKS 1 /* Non-IDAT chunks are being written */
-# define STATE_IDAT 2 /* An IDAT stream is being written */
-
- /* Two pointers used to enable clean-up in the event of fatal errors and to
- * hold state about the parser process (only one of each at present.)
- */
- struct chunk * chunk;
- struct IDAT * idat;
-
- /* Interface to allocate a new chunk or IDAT control structure. The result
- * is returned by setting one or other of the above variables. Note that the
- * relevant initializer is called by the allocator function. The alloc_ptr
- * is used only by the implementation of the allocate function.
- */
- void * alloc_ptr;
- void (*alloc)(struct file*,int idat);
- /* idat: allocate IDAT not chunk */
-};
-
-/* Valid longjmp (stop) codes are: */
-#define LIBPNG_WARNING_CODE 1 /* generic png_error */
-#define LIBPNG_ERROR_CODE 2 /* generic png_error */
-#define ZLIB_ERROR_CODE 3 /* generic zlib error */
-#define INVALID_ERROR_CODE 4 /* detected an invalid PNG */
-#define READ_ERROR_CODE 5 /* read failed */
-#define WRITE_ERROR_CODE 6 /* error in write */
-#define UNEXPECTED_ERROR_CODE 7 /* unexpected (internal?) error */
-
-static void
-emit_string(const char *str, FILE *out)
- /* Print a string with spaces replaced by '_' and non-printing characters by
- * an octal escape.
- */
-{
- for (; *str; ++str)
- if (isgraph(UCHAR_MAX & *str))
- putc(*str, out);
-
- else if (isspace(UCHAR_MAX & *str))
- putc('_', out);
-
- else
- fprintf(out, "\\%.3o", *str);
-}
-
-static const char *
-strcode(int code)
-{
- switch (code)
- {
- case LIBPNG_WARNING_CODE: return "warning";
- case LIBPNG_ERROR_CODE: return "libpng";
- case ZLIB_ERROR_CODE: return "zlib";
- case INVALID_ERROR_CODE: return "invalid";
- case READ_ERROR_CODE: return "read";
- case WRITE_ERROR_CODE: return "write";
- case UNEXPECTED_ERROR_CODE: return "unexpected";
- default: return "INVALID";
- }
-}
-
-static void
-emit_error(struct file *file, int code, const char *what)
- /* Generic error message routine, takes a 'stop' code but can be used
- * elsewhere. Always outputs a message.
- */
-{
- const char *reason;
- int err = 0;
-
- switch (code)
- {
- case LIBPNG_WARNING_CODE: reason = "libpng warning:"; break;
- case LIBPNG_ERROR_CODE: reason = "libpng error:"; break;
- case ZLIB_ERROR_CODE: reason = "zlib error:"; break;
- case INVALID_ERROR_CODE: reason = "invalid"; break;
- case READ_ERROR_CODE: reason = "read failure:";
- err = file->read_errno;
- break;
- case WRITE_ERROR_CODE: reason = "write error";
- err = file->write_errno;
- break;
- case UNEXPECTED_ERROR_CODE: reason = "unexpected error:";
- err = file->read_errno;
- if (err == 0)
- err = file->write_errno;
- break;
- default: reason = "INVALID (internal error):"; break;
- }
-
- if (err != 0)
- fprintf(stderr, "%s: %s %s [%s]\n", file->file_name, reason, what,
- strerror(err));
-
- else
- fprintf(stderr, "%s: %s %s\n", file->file_name, reason, what);
-}
-
-static void chunk_end(struct chunk **);
-static void IDAT_end(struct IDAT **);
-
-static int
-file_end(struct file *file)
-{
- int rc;
-
- /* If either of the chunk pointers are set end them here, the IDAT structure
- * must be deallocated first as it may deallocate the chunk structure.
- */
- if (file->idat != NULL)
- IDAT_end(&file->idat);
-
- if (file->chunk != NULL)
- chunk_end(&file->chunk);
-
- rc = file->status_code;
-
- if (file->file != NULL)
- (void)fclose(file->file);
-
- if (file->out != NULL)
- {
- /* NOTE: this is bitwise |, all the following functions must execute and
- * must succeed.
- */
- if (ferror(file->out) | fflush(file->out) | fclose(file->out))
- {
- perror(file->out_name);
- emit_error(file, READ_ERROR_CODE, "output write error");
- rc |= WRITE_ERROR;
- }
- }
-
- /* Accumulate the result codes */
- file->global->status_code |= rc;
-
- CLEAR(*file);
-
- return rc; /* status code: non-zero on read or write error */
-}
-
-static int
-file_init(struct file *file, struct global *global, const char *file_name,
- const char *out_name, void *alloc_ptr, void (*alloc)(struct file*,int))
- /* Initialize a file control structure. This will open the given files as
- * well. The status code returned is 0 on success, non zero (using the flags
- * above) on a file open error.
- */
-{
- CLEAR(*file);
- file->global = global;
-
- file->file_name = file_name;
- file->out_name = out_name;
- file->status_code = 0;
- file->read_errno = 0;
- file->write_errno = 0;
-
- file->file = NULL;
- file->out = NULL;
- /* jmpbuf is garbage: must be set by read_png */
-
- file->read_count = 0;
- file->state = STATE_SIGNATURE;
-
- file->chunk = NULL;
- file->idat = NULL;
-
- file->alloc_ptr = alloc_ptr;
- file->alloc = alloc;
-
- /* Open the files: */
- assert(file_name != NULL);
- file->file = fopen(file_name, "rb");
-
- if (file->file == NULL)
- {
- file->read_errno = errno;
- file->status_code |= FILE_ERROR;
- /* Always output: please give a readable file! */
- perror(file_name);
- return FILE_ERROR;
- }
-
- if (out_name != NULL)
- {
- file->out = fopen(out_name, "wb");
-
- if (file->out == NULL)
- {
- file->write_errno = errno;
- file->status_code |= WRITE_ERROR;
- perror(out_name);
- return WRITE_ERROR;
- }
- }
-
- return 0;
-}
-
-static void
-log_error(struct file *file, int code, const char *what)
- /* Like emit_error but checks the global 'errors' flag */
-{
- if (file->global->errors)
- emit_error(file, code, what);
-}
-
-static char
-type_char(png_uint_32 v)
-{
- /* In fact because chunk::chunk_type is validated prior to any call to this
- * function it will always return a-zA-Z, but the extra codes are just there
- * to help in finding internal (programming) errors. Note that the code only
- * ever considers the low 7 bits of the value (so it is not necessary for the
- * type_name function to mask of the byte.)
- */
- if (v & 32)
- return "!abcdefghijklmnopqrstuvwxyz56789"[(v-96)&31];
-
- else
- return "@ABCDEFGHIJKLMNOPQRSTUVWXYZ01234"[(v-64)&31];
-}
-
-static void
-type_name(png_uint_32 type, FILE *out)
-{
- putc(type_char(type >> 24), out);
- putc(type_char(type >> 16), out);
- putc(type_char(type >> 8), out);
- putc(type_char(type ), out);
-}
-
-static void
-type_sep(FILE *out)
-{
- putc(':', out);
- putc(' ', out);
-}
-
-static png_uint_32 current_type(struct file *file, int code);
-
-PNG_NORETURN static void
-stop(struct file *file, int code, const char *what)
- /* Return control when a PNG file cannot be read. This outputs an 'ERR'
- * summary line too.
- */
-{
- log_error(file, code, what);
-
- /* The chunk being read is typically identified by file->chunk or, if this is
- * NULL, by file->type. This may be wrong if libpng reads ahead, but this
- * only happens with IDAT where libpng reads the header then jumps around
- * finding errors in the previous chunks. We know that is happening because
- * we are at the start of the IDAT (i.e. no IDAT data has yet been written.)
- *
- * SUMMARY FORMAT (stop):
- *
- * IDAT ERR status code read-errno write-errno message file
- *
- * 'uncompressed' will be 0 if there was a problem in the IHDR. The errno
- * values are emit_string(strerror(errno)).
- */
- if (file->global->quiet < 2) /* need two quiets to stop this. */
- {
- png_uint_32 type;
-
- if (file->chunk != NULL)
- type = current_type(file, code); /* Gropes in struct chunk and IDAT */
-
- else
- type = file->type;
-
- if (type)
- type_name(type, stdout);
-
- else /* magic: an IDAT header, produces bogons for too many IDATs */
- fputs("HEAD", stdout); /* not a registered chunk! */
-
- printf(" ERR %.2x %s ", file->status_code, strcode(code));
- /* This only works one strerror at a time, because of the way strerror is
- * implemented.
- */
- emit_string(strerror(file->read_errno), stdout);
- putc(' ', stdout);
- emit_string(strerror(file->write_errno), stdout);
- putc(' ', stdout);
- emit_string(what, stdout);
- putc(' ', stdout);
- fputs(file->file_name, stdout);
- putc('\n', stdout);
- }
-
- file->status_code |= FILE_ERROR;
- longjmp(file->jmpbuf, code);
-}
-
-PNG_NORETURN static void
-stop_invalid(struct file *file, const char *what)
-{
- stop(file, INVALID_ERROR_CODE, what);
-}
-
-static void
-type_message(struct file *file, png_uint_32 type, const char *what)
- /* Error message for a chunk; the chunk name comes from 'type' */
-{
- if (file->global->errors)
- {
- fputs(file->file_name, stderr);
- type_sep(stderr);
- type_name(type, stderr);
- type_sep(stderr);
- fputs(what, stderr);
- putc('\n', stderr);
- }
-}
-
-/* Input file positioning - we jump around in the input file while reading
- * stuff, these wrappers deal with the error handling.
- */
-static void
-file_getpos(struct file *file, fpos_t *pos)
-{
- if (fgetpos(file->file, pos))
- {
- /* This is unexpected, so perror it */
- perror(file->file_name);
- stop(file, READ_ERROR_CODE, "fgetpos");
- }
-}
-
-static void
-file_setpos(struct file *file, const fpos_t *pos)
-{
- if (fsetpos(file->file, pos))
- {
- perror(file->file_name);
- stop(file, READ_ERROR_CODE, "fsetpos");
- }
-}
-
-static void
-getpos(struct file *file)
- /* Get the current position and store it in 'data_pos'. The corresponding
- * setpos() function is chunk specific because it uses the copy of the
- * position for the specific chunk.
- */
-{
- file_getpos(file, &file->data_pos);
-}
-
-
-/* Read utility - read a single byte, returns a value in the range 0..255 or EOF
- * on a read error. In the latter case status_code and read_errno are updated
- * appropriately.
- */
-static int
-read_byte(struct file *file)
-{
- int ch = getc(file->file);
-
- if (ch >= 0 && ch <= 255)
- {
- ++(file->read_count);
- return ch;
- }
-
- else if (ch != EOF)
- {
- file->status_code |= INTERNAL_ERROR;
- file->read_errno = ERANGE; /* out of range character */
-
- /* This is very unexpected; an error message is always output: */
- emit_error(file, UNEXPECTED_ERROR_CODE, "file read");
- }
-
-# ifdef EINTR
- else if (errno == EINTR) /* Interrupted, try again */
- {
- errno = 0;
- return read_byte(file);
- }
-# endif
-
- else
- {
- /* An error, it doesn't really matter what the error is but it gets
- * recorded anyway.
- */
- if (ferror(file->file))
- file->read_errno = errno;
-
- else if (feof(file->file))
- file->read_errno = 0; /* I.e. a regular EOF, no error */
-
- else /* unexpected */
- file->read_errno = EDOM;
- }
-
- /* 'TRUNCATED' is used for all cases of failure to read a byte, because of
- * the way libpng works a byte read is never attempted unless the byte is
- * expected to be there, so EOF should not occur.
- */
- file->status_code |= TRUNCATED;
- return EOF;
-}
-
-static png_byte
-reread_byte(struct file *file)
- /* Read a byte when an error is not expected to happen because the byte has
- * been read before without error.
- */
-{
- int ch = getc(file->file);
-
- if (errno != 0)
- file->read_errno = errno;
-
- if (ch < 0 || ch > 255)
- stop(file, UNEXPECTED_ERROR_CODE, "reread");
-
- return (png_byte)ch;
-}
-
-static png_uint_32
-reread_4(struct file *file)
- /* The same but for a four byte quantity */
-{
- png_uint_32 result = 0;
- int i = 0;
-
- while (++i <= 4)
- result = (result << 8) + reread_byte(file);
-
- return result;
-}
-
-static void
-skip_12(struct file *file)
- /* Skip exactly 12 bytes in the input stream - used to skip a CRC and chunk
- * header that has been read before.
- */
-{
- /* Since the chunks were read before this shouldn't fail: */
- if (fseek(file->file, 12, SEEK_CUR) != 0)
- {
- if (errno != 0)
- file->read_errno = errno;
-
- stop(file, UNEXPECTED_ERROR_CODE, "reskip");
- }
-}
-
-static void
-write_byte(struct file *file, int b)
- /* Write one byte to the output - this causes a fatal error if the write
- * fails and the read of this PNG file immediately terminates. Just
- * increments the write count if there is no output file.
- */
-{
- if (file->out != NULL)
- {
- if (putc(b, file->out) != b)
- {
- file->write_errno = errno;
- file->status_code |= WRITE_ERROR;
- stop(file, WRITE_ERROR_CODE, "write byte");
- }
- }
-
- ++(file->write_count);
-}
-
-/* Derivatives of the read/write functions. */
-static unsigned int
-read_4(struct file *file, png_uint_32 *pu)
- /* Read four bytes, returns the number of bytes read successfully and, if all
- * four bytes are read, assigns the result to *pu.
- */
-{
- unsigned int i = 0;
- png_uint_32 val = 0;
-
- do
- {
- int ch = read_byte(file);
-
- if (ch == EOF)
- return i;
-
- val = (val << 8) + ch;
- } while (++i < 4);
-
- *pu = val;
- return i;
-}
-
-/* CRC handling - read but calculate the CRC while doing so. */
-static int
-crc_read_many(struct file *file, png_uint_32 length)
- /* Reads 'length' bytes and updates the CRC, returns true on success, false
- * if the input is truncated.
- */
-{
- if (length > 0)
- {
- png_uint_32 crc = file->crc;
-
- do
- {
- int ch = read_byte(file);
-
- if (ch == EOF)
- return 0; /* Truncated */
-
- crc = crc_one_byte(crc, ch);
- }
- while (--length > 0);
-
- file->crc = crc;
- }
-
- return 1; /* OK */
-}
-
-static int
-calc_image_size(struct file *file)
- /* Fill in the image_bytes field given the IHDR information, calls stop on
- * error.
- */
-{
- png_uint_16 pd = file->bit_depth;
-
- switch (file->color_type)
- {
- default:
- stop_invalid(file, "IHDR: colour type");
-
- invalid_bit_depth:
- stop_invalid(file, "IHDR: bit depth");
-
- case 0: /* g */
- if (pd != 1 && pd != 2 && pd != 4 && pd != 8 && pd != 16)
- goto invalid_bit_depth;
- break;
-
- case 3:
- if (pd != 1 && pd != 2 && pd != 4 && pd != 8)
- goto invalid_bit_depth;
- break;
-
- case 2: /* rgb */
- if (pd != 8 && pd != 16)
- goto invalid_bit_depth;
-
- pd = (png_uint_16)(pd * 3);
- break;
-
- case 4: /* ga */
- if (pd != 8 && pd != 16)
- goto invalid_bit_depth;
-
- pd = (png_uint_16)(pd * 2);
- break;
-
- case 6: /* rgba */
- if (pd != 8 && pd != 16)
- goto invalid_bit_depth;
-
- pd = (png_uint_16)(pd * 4);
- break;
- }
-
- if (file->width < 1 || file->width > 0x7fffffff)
- stop_invalid(file, "IHDR: width");
-
- else if (file->height < 1 || file->height > 0x7fffffff)
- stop_invalid(file, "IHDR: height");
-
- else if (file->compression_method != 0)
- stop_invalid(file, "IHDR: compression method");
-
- else if (file->filter_method != 0)
- stop_invalid(file, "IHDR: filter method");
-
- else switch (file->interlace_method)
- {
- case PNG_INTERLACE_ADAM7:
- /* Interlacing makes the image larger because of the replication of
- * both the filter byte and the padding to a byte boundary.
- */
- {
- int pass;
- int image_digits = 0;
- udigit row_width[2], row_bytes[3];
-
- for (pass=0; pass<=6; ++pass)
- {
- png_uint_32 pw = PNG_PASS_COLS(file->width, pass);
-
- if (pw > 0)
- {
- int digits;
-
- /* calculate 1+((pw*pd+7)>>3) in row_bytes */
- digits = uarb_mult_digit(row_bytes, uarb_set(row_bytes, 7),
- row_width, uarb_set(row_width, pw), pd);
- digits = uarb_shift(row_bytes, digits, 3);
- digits = uarb_inc(row_bytes, digits, 1);
-
- /* Add row_bytes * pass-height to the file image_bytes field
- */
- image_digits = uarb_mult32(file->image_bytes, image_digits,
- row_bytes, digits,
- PNG_PASS_ROWS(file->height, pass));
- }
- }
-
- file->image_digits = image_digits;
- }
- break;
-
- case PNG_INTERLACE_NONE:
- {
- int digits;
- udigit row_width[2], row_bytes[3];
-
- /* As above, but use image_width in place of the pass width: */
- digits = uarb_mult_digit(row_bytes, uarb_set(row_bytes, 7),
- row_width, uarb_set(row_width, file->width), pd);
- digits = uarb_shift(row_bytes, digits, 3);
- digits = uarb_inc(row_bytes, digits, 1);
-
- /* Set row_bytes * image-height to the file image_bytes field */
- file->image_digits = uarb_mult32(file->image_bytes, 0,
- row_bytes, digits, file->height);
- }
- break;
-
- default:
- stop_invalid(file, "IHDR: interlace method");
- }
-
- assert(file->image_digits >= 1 && file->image_digits <= 5);
- return 1;
-}
-
-/* PER-CHUNK CONTROL STRUCTURE
- * This structure is instantiated for each chunk, except for the IDAT chunks
- * where one chunk control structure is used for the whole of a single stream of
- * IDAT chunks (see the IDAT control structure below).
- */
-struct chunk
-{
- /* ANCESTORS */
- struct file * file;
- struct global * global;
-
- /* PUBLIC IDAT INFORMATION: SET BY THE ZLIB CODE */
- udigit uncompressed_bytes[5];
- int uncompressed_digits;
- udigit compressed_bytes[5];
- int compressed_digits;
-
- /* PUBLIC PER-CHUNK INFORMATION: USED BY CHUNK READ CODE */
- /* This information is filled in by chunk_init from the data in the file
- * control structure, but chunk_length may be changed later.
- */
- fpos_t chunk_data_pos; /* Position of first byte of chunk data */
- png_uint_32 chunk_length; /* From header (or modified below) */
- png_uint_32 chunk_type; /* From header */
-
- /* PUBLIC PER-CHUNK INFORMATION: FOR THE CHUNK WRITE CODE */
- png_uint_32 write_crc; /* Output CRC (may differ from read_crc) */
- png_uint_32 rewrite_offset; /* Count of bytes before rewrite. */
- int rewrite_length; /* Number of bytes left to change */
- png_byte rewrite_buffer[2]; /* Buffer of new byte values */
-};
-
-static void
-chunk_message(struct chunk *chunk, const char *message)
-{
- type_message(chunk->file, chunk->chunk_type, message);
-}
-
-static void
-chunk_end(struct chunk **chunk_var)
-{
- struct chunk *chunk = *chunk_var;
-
- *chunk_var = NULL;
- CLEAR(*chunk);
-}
-
-static void
-chunk_init(struct chunk * const chunk, struct file * const file)
- /* When a chunk is initialized the file length/type/pos are copied into the
- * corresponding chunk fields and the new chunk is registered in the file
- * structure. There can only be one chunk at a time.
- *
- * NOTE: this routine must onely be called from the file alloc routine!
- */
-{
- assert(file->chunk == NULL);
-
- CLEAR(*chunk);
-
- chunk->file = file;
- chunk->global = file->global;
-
- chunk->chunk_data_pos = file->data_pos;
- chunk->chunk_length = file->length;
- chunk->chunk_type = file->type;
-
- /* Compresssed/uncompressed size information (from the zlib control structure
- * that is used to check the compressed data in a chunk.)
- */
- chunk->uncompressed_digits = 0;
- chunk->compressed_digits = 0;
-
- file->chunk = chunk;
-}
-
-static png_uint_32
-current_type(struct file *file, int code)
- /* Guess the actual chunk type that causes a stop() */
-{
- /* This may return png_IDAT for errors detected (late) in the header; that
- * includes any inter-chunk consistency check that libpng performs. Assume
- * that if the chunk_type is png_IDAT and the file write count is 8 this is
- * what is happening.
- */
- if (file->chunk != NULL)
- {
- png_uint_32 type = file->chunk->chunk_type;
-
- /* This is probably wrong for the excess IDATs case, because then libpng
- * whines about too many of them (apparently in some cases erroneously)
- * when the header is read.
- */
- if (code <= LIBPNG_ERROR_CODE && type == png_IDAT &&
- file->write_count == 8)
- type = 0; /* magic */
-
- return type;
- }
-
- else
- return file->type;
-}
-
-static void
-setpos(struct chunk *chunk)
- /* Reset the position to 'chunk_data_pos' - the start of the data for this
- * chunk. As a side effect the read_count in the file is reset to 8, just
- * after the length/type header.
- */
-{
- chunk->file->read_count = 8;
- file_setpos(chunk->file, &chunk->chunk_data_pos);
-}
-
-/* Specific chunk handling - called for each chunk header, all special chunk
- * processing is initiated in these functions.
- */
-/* The next functions handle special processing for those chunks with LZ data,
- * the data is identified and checked for validity. If there are problems which
- * cannot be corrected the routines return false, otherwise true (although
- * modification to the zlib header may be required.)
- *
- * The compressed data is in zlib format (RFC1950) and consequently has a
- * minimum length of 7 bytes.
- */
-static int zlib_check(struct file *file, png_uint_32 offset);
-
-static int
-process_zTXt_iCCP(struct file *file)
- /* zTXt and iCCP have exactly the same form - keyword, null, compression
- * method then compressed data.
- */
-{
- struct chunk *chunk = file->chunk;
- png_uint_32 length;
- png_uint_32 index = 0;
-
- assert(chunk != NULL && file->idat == NULL);
- length = chunk->chunk_length;
- setpos(chunk);
-
- while (length >= 9)
- {
- --length;
- ++index;
- if (reread_byte(file) == 0) /* keyword null terminator */
- {
- --length;
- ++index;
- (void)reread_byte(file); /* compression method */
- return zlib_check(file, index);
- }
- }
-
- chunk_message(chunk, "too short");
- return 0; /* skip */
-}
-
-static int
-process_iTXt(struct file *file)
-{
- /* Like zTXt but more fields. */
- struct chunk *chunk = file->chunk;
- png_uint_32 length;
- png_uint_32 index = 0;
-
- assert(chunk != NULL && file->idat == NULL);
- length = chunk->chunk_length;
- setpos(chunk);
-
- while (length >= 5)
- {
- --length;
- ++index;
- if (reread_byte(file) == 0) /* keyword null terminator */
- {
- --length;
- ++index;
- if (reread_byte(file) == 0) /* uncompressed text */
- return 1; /* nothing to check */
-
- --length;
- ++index;
- (void)reread_byte(file); /* compression method */
-
- /* Skip the language tag (null terminated). */
- while (length >= 9)
- {
- --length;
- ++index;
- if (reread_byte(file) == 0) /* terminator */
- {
- /* Skip the translated keyword */
- while (length >= 8)
- {
- --length;
- ++index;
- if (reread_byte(file) == 0) /* terminator */
- return zlib_check(file, index);
- }
- }
- }
-
- /* Ran out of bytes in the compressed case. */
- break;
- }
- }
-
- log_error(file, INVALID_ERROR_CODE, "iTXt chunk length");
-
- return 0; /* skip */
-}
-
-/* IDAT READ/WRITE CONTROL STRUCTURE */
-struct IDAT
-{
- /* ANCESTORS */
- struct file * file;
- struct global * global;
-
- /* PROTECTED IDAT INFORMATION: SET BY THE IDAT READ CODE */
- struct IDAT_list *idat_list_head; /* START of the list of IDAT information */
- struct IDAT_list *idat_list_tail; /* *END* of the list of IDAT information */
-
- /* PROTECTED IDAT INFORMATION: USED BY THE IDAT WRITE CODE */
- struct IDAT_list *idat_cur; /* Current list entry */
- unsigned int idat_count; /* And the *current* index into the list */
- png_uint_32 idat_index; /* Index of *next* input byte to write */
- png_uint_32 idat_length; /* Cache of current chunk length */
-};
-
-/* NOTE: there is currently no IDAT_reset, so a stream cannot contain more than
- * one IDAT sequence (i.e. MNG is not supported).
- */
-
-static void
-IDAT_end(struct IDAT **idat_var)
-{
- struct IDAT *idat = *idat_var;
- struct file *file = idat->file;
-
- *idat_var = NULL;
-
- CLEAR(*idat);
-
- assert(file->chunk != NULL);
- chunk_end(&file->chunk);
-
- /* Regardless of why the IDAT was killed set the state back to CHUNKS (it may
- * already be CHUNKS because the state isn't changed until process_IDAT
- * returns; a stop will cause IDAT_end to be entered in state CHUNKS!)
- */
- file->state = STATE_CHUNKS;
-}
-
-static void
-IDAT_init(struct IDAT * const idat, struct file * const file)
- /* When the chunk is png_IDAT instantiate an IDAT control structure in place
- * of a chunk control structure. The IDAT will instantiate a chunk control
- * structure using the file alloc routine.
- *
- * NOTE: this routine must only be called from the file alloc routine!
- */
-{
- assert(file->chunk == NULL);
- assert(file->idat == NULL);
-
- CLEAR(*idat);
-
- idat->file = file;
- idat->global = file->global;
-
- /* Initialize the tail to the pre-allocated buffer and set the count to 0
- * (empty.)
- */
- idat->global->idat_cache.count = 0;
- idat->idat_list_head = idat->idat_list_tail = &idat->global->idat_cache;
-
- /* Now the chunk. The allocator calls the initializer of the new chunk and
- * stores the result in file->chunk:
- */
- file->alloc(file, 0/*chunk*/);
- assert(file->chunk != NULL);
-
- /* And store this for cleanup (and to check for double alloc or failure to
- * free.)
- */
- file->idat = idat;
-}
-
-static png_uint_32
-rechunk_length(struct IDAT *idat, int start)
- /* Return the length for the next IDAT chunk, taking into account
- * rechunking.
- */
-{
- png_uint_32 len = idat->global->idat_max;
-
- if (len == 0) /* use original chunk lengths */
- {
- const struct IDAT_list *cur;
- unsigned int count;
-
- if (start)
- return idat->idat_length; /* use the cache */
-
- /* Otherwise rechunk_length is called at the end of a chunk for the length
- * of the next one.
- */
- cur = idat->idat_cur;
- count = idat->idat_count;
-
- assert(idat->idat_index == idat->idat_length &&
- idat->idat_length == cur->lengths[count]);
-
- /* Return length of the *next* chunk */
- if (++count < cur->count)
- return cur->lengths[count];
-
- /* End of this list */
- assert(cur != idat->idat_list_tail);
- cur = cur->next;
- assert(cur != NULL && cur->count > 0);
- return cur->lengths[0];
- }
-
- else /* rechunking */
- {
- /* The chunk size is the lesser of file->idat_max and the number
- * of remaining bytes.
- */
- png_uint_32 have = idat->idat_length - idat->idat_index;
-
- if (len > have)
- {
- struct IDAT_list *cur = idat->idat_cur;
- unsigned int j = idat->idat_count+1; /* the next IDAT in the list */
-
- do
- {
- /* Add up the remaining bytes. This can't overflow because the
- * individual lengths are always <= 0x7fffffff, so when we add two
- * of them overflow is not possible.
- */
- assert(cur != NULL);
-
- for (;;)
- {
- /* NOTE: IDAT_list::count here, not IDAT_list::length */
- for (; j < cur->count; ++j)
- {
- have += cur->lengths[j];
- if (len <= have)
- return len;
- }
-
- /* If this was the end return the count of the available bytes */
- if (cur == idat->idat_list_tail)
- return have;
-
- cur = cur->next;
- j = 0;
- }
- }
- while (len > have);
- }
-
- return len;
- }
-}
-
-static int
-process_IDAT(struct file *file)
- /* Process the IDAT stream, this is the more complex than the preceding
- * cases because the compressed data is spread across multiple IDAT chunks
- * (typically). Rechunking of the data is not handled here; all this
- * function does is establish whether the zlib header needs to be modified.
- *
- * Initially the function returns false, indicating that the chunk should not
- * be written. It does this until the last IDAT chunk is passed in, then it
- * checks the zlib data and returns true.
- *
- * It does not return false on a fatal error; it calls stop instead.
- *
- * The caller must have an instantiated (IDAT) control structure and it must
- * have extent over the whole read of the IDAT stream. For a PNG this means
- * the whole PNG read, for MNG it could have lesser extent.
- */
-{
- struct IDAT_list *list;
-
- assert(file->idat != NULL && file->chunk != NULL);
-
- /* We need to first check the entire sequence of IDAT chunks to ensure the
- * stream is in sync. Do this by building a list of all the chunks and
- * recording the length of each because the length may have been fixed up by
- * sync_stream below.
- *
- * At the end of the list of chunks, where the type of the next chunk is not
- * png_IDAT, process the whole stream using the list data to check validity
- * then return control to the start and rewrite everything.
- */
- list = file->idat->idat_list_tail;
-
- if (list->count == list->length)
- {
- list = IDAT_list_extend(list);
-
- if (list == NULL)
- stop(file, READ_ERROR_CODE, "out of memory");
-
- /* Move to the next block */
- list->count = 0;
- file->idat->idat_list_tail = list;
- }
-
- /* And fill in the next IDAT information buffer. */
- list->lengths[(list->count)++] = file->chunk->chunk_length;
-
- /* The type of the next chunk was recorded in the file control structure by
- * the caller, if this is png_IDAT return 'skip' to the caller.
- */
- if (file->type == png_IDAT)
- return 0; /* skip this for the moment */
-
- /* This is the final IDAT chunk, so run the tests to check for the too far
- * back error and possibly optimize the window bits. This means going back
- * to the start of the first chunk data, which is stored in the original
- * chunk allocation.
- */
- setpos(file->chunk);
-
- if (zlib_check(file, 0))
- {
- struct IDAT *idat;
- int cmp;
-
- /* The IDAT stream was successfully uncompressed; see whether it
- * contained the correct number of bytes of image data.
- */
- cmp = uarb_cmp(file->image_bytes, file->image_digits,
- file->chunk->uncompressed_bytes, file->chunk->uncompressed_digits);
-
- if (cmp < 0)
- type_message(file, png_IDAT, "extra uncompressed data");
-
- else if (cmp > 0)
- stop(file, LIBPNG_ERROR_CODE, "IDAT: uncompressed data too small");
-
- /* Return the stream to the start of the first IDAT chunk; the length
- * is set in the write case below but the input chunk variables must be
- * set (once) here:
- */
- setpos(file->chunk);
-
- idat = file->idat;
- idat->idat_cur = idat->idat_list_head;
- idat->idat_length = idat->idat_cur->lengths[0];
- idat->idat_count = 0; /* Count of chunks read in current list */
- idat->idat_index = 0; /* Index into chunk data */
-
- /* Update the chunk length to the correct value for the IDAT chunk: */
- file->chunk->chunk_length = rechunk_length(idat, 1/*start*/);
-
- /* Change the state to writing IDAT chunks */
- file->state = STATE_IDAT;
-
- return 1;
- }
-
- else /* Failure to decompress the IDAT stream; give up. */
- stop(file, ZLIB_ERROR_CODE, "could not uncompress IDAT");
-}
-
-/* ZLIB CONTROL STRUCTURE */
-struct zlib
-{
- /* ANCESTORS */
- struct IDAT * idat; /* NOTE: May be NULL */
- struct chunk * chunk;
- struct file * file;
- struct global *global;
-
- /* GLOBAL ZLIB INFORMATION: SET BY THE CALLER */
- png_uint_32 rewrite_offset;
-
- /* GLOBAL ZLIB INFORMATION: SET BY THE ZLIB READ CODE */
- udigit compressed_bytes[5];
- int compressed_digits;
- udigit uncompressed_bytes[5];
- int uncompressed_digits;
- int file_bits; /* window bits from the file */
- int ok_bits; /* Set <16 on a successful read */
- int cksum; /* Set on a checksum error */
-
- /* PROTECTED ZLIB INFORMATION: USED BY THE ZLIB ROUTINES */
- z_stream z;
- png_uint_32 extra_bytes; /* Count of extra compressed bytes */
- int state;
- int rc; /* Last return code */
- int window_bits; /* 0 if no change */
- png_byte header[2];
-};
-
-static const char *
-zlib_flevel(struct zlib *zlib)
-{
- switch (zlib->header[1] >> 6)
- {
- case 0: return "supfast";
- case 1: return "stdfast";
- case 2: return "default";
- case 3: return "maximum";
- default: assert(UNREACHED);
- }
-
- return "COMPILER BUG";
-}
-
-static const char *
-zlib_rc(struct zlib *zlib)
- /* Return a string for the zlib return code */
-{
- switch (zlib->rc)
- {
- case Z_OK: return "Z_OK";
- case Z_STREAM_END: return "Z_STREAM_END";
- case Z_NEED_DICT: return "Z_NEED_DICT";
- case Z_ERRNO: return "Z_ERRNO";
- case Z_STREAM_ERROR: return "Z_STREAM_ERROR";
- case Z_DATA_ERROR: return "Z_DATA_ERROR";
- case Z_MEM_ERROR: return "Z_MEM_ERROR";
- case Z_BUF_ERROR: return "Z_BUF_ERROR";
- case Z_VERSION_ERROR: return "Z_VERSION_ERROR";
- default: return "Z_*INVALID_RC*";
- }
-}
-
-static void
-zlib_message(struct zlib *zlib, int unexpected)
- /* Output a message given a zlib rc */
-{
- if (zlib->global->errors)
- {
- const char *reason = zlib->z.msg;
-
- if (reason == NULL)
- reason = "[no message]";
-
- fputs(zlib->file->file_name, stderr);
- type_sep(stderr);
- type_name(zlib->chunk->chunk_type, stderr);
- fprintf(stderr, ": %szlib error: %d (%s) (%s)\n",
- unexpected ? "unexpected " : "", zlib->rc, zlib_rc(zlib), reason);
- }
-}
-
-static void
-zlib_end(struct zlib *zlib)
-{
- /* Output the summary line now; this ensures a summary line always gets
- * output regardless of the manner of exit.
- */
- if (!zlib->global->quiet)
- {
- if (zlib->ok_bits < 16) /* stream was read ok */
- {
- const char *reason;
-
- if (zlib->cksum)
- reason = "CHK"; /* checksum error */
-
- else if (zlib->ok_bits > zlib->file_bits)
- reason = "TFB"; /* fixing a too-far-back error */
-
- else if (zlib->ok_bits == zlib->file_bits)
- reason = "OK ";
-
- else
- reason = "OPT"; /* optimizing window bits */
-
- /* SUMMARY FORMAT (for a successful zlib inflate):
- *
- * IDAT reason flevel file-bits ok-bits compressed uncompressed file
- */
- type_name(zlib->chunk->chunk_type, stdout);
- printf(" %s %s %d %d ", reason, zlib_flevel(zlib), zlib->file_bits,
- zlib->ok_bits);
- uarb_print(zlib->compressed_bytes, zlib->compressed_digits, stdout);
- putc(' ', stdout);
- uarb_print(zlib->uncompressed_bytes, zlib->uncompressed_digits,
- stdout);
- putc(' ', stdout);
- fputs(zlib->file->file_name, stdout);
- putc('\n', stdout);
- }
-
- else
- {
- /* This is a zlib read error; the chunk will be skipped. For an IDAT
- * stream this will also cause a fatal read error (via stop()).
- *
- * SUMMARY FORMAT:
- *
- * IDAT SKP flevel file-bits z-rc compressed message file
- *
- * z-rc is the zlib failure code; message is the error message with
- * spaces replaced by '-'. The compressed byte count indicates where
- * in the zlib stream the error occurred.
- */
- type_name(zlib->chunk->chunk_type, stdout);
- printf(" SKP %s %d %s ", zlib_flevel(zlib), zlib->file_bits,
- zlib_rc(zlib));
- uarb_print(zlib->compressed_bytes, zlib->compressed_digits, stdout);
- putc(' ', stdout);
- emit_string(zlib->z.msg ? zlib->z.msg : "[no_message]", stdout);
- putc(' ', stdout);
- fputs(zlib->file->file_name, stdout);
- putc('\n', stdout);
- }
- }
-
- if (zlib->state >= 0)
- {
- zlib->rc = inflateEnd(&zlib->z);
-
- if (zlib->rc != Z_OK)
- zlib_message(zlib, 1/*unexpected*/);
- }
-
- CLEAR(*zlib);
-}
-
-static int
-zlib_reset(struct zlib *zlib, int window_bits)
- /* Reinitializes a zlib with a different window_bits */
-{
- assert(zlib->state >= 0); /* initialized by zlib_init */
-
- zlib->z.next_in = Z_NULL;
- zlib->z.avail_in = 0;
- zlib->z.next_out = Z_NULL;
- zlib->z.avail_out = 0;
-
- zlib->window_bits = window_bits;
- zlib->compressed_digits = 0;
- zlib->uncompressed_digits = 0;
-
- zlib->state = 0; /* initialized, once */
- zlib->rc = inflateReset2(&zlib->z, 0);
- if (zlib->rc != Z_OK)
- {
- zlib_message(zlib, 1/*unexpected*/);
- return 0;
- }
-
- return 1;
-}
-
-static int
-zlib_init(struct zlib *zlib, struct IDAT *idat, struct chunk *chunk,
- int window_bits, png_uint_32 offset)
- /* Initialize a zlib_control; the result is true/false */
-{
- CLEAR(*zlib);
-
- zlib->idat = idat;
- zlib->chunk = chunk;
- zlib->file = chunk->file;
- zlib->global = chunk->global;
- zlib->rewrite_offset = offset; /* never changed for this zlib */
-
- /* *_out does not need to be set: */
- zlib->z.next_in = Z_NULL;
- zlib->z.avail_in = 0;
- zlib->z.zalloc = Z_NULL;
- zlib->z.zfree = Z_NULL;
- zlib->z.opaque = Z_NULL;
-
- zlib->state = -1;
- zlib->window_bits = window_bits;
-
- zlib->compressed_digits = 0;
- zlib->uncompressed_digits = 0;
-
- /* These values are sticky across reset (in addition to the stuff in the
- * first block, which is actually constant.)
- */
- zlib->file_bits = 24;
- zlib->ok_bits = 16; /* unset */
- zlib->cksum = 0; /* set when a checksum error is detected */
-
- /* '0' means use the header; inflateInit2 should always succeed because it
- * does nothing apart from allocating the internal zstate.
- */
- zlib->rc = inflateInit2(&zlib->z, 0);
- if (zlib->rc != Z_OK)
- {
- zlib_message(zlib, 1/*unexpected*/);
- return 0;
- }
-
- else
- {
- zlib->state = 0; /* initialized */
- return 1;
- }
-}
-
-static int
-max_window_bits(uarbc size, int ndigits)
- /* Return the zlib stream window bits required for data of the given size. */
-{
- png_uint_16 cb;
-
- if (ndigits > 1)
- return 15;
-
- cb = size[0];
-
- if (cb > 16384) return 15;
- if (cb > 8192) return 14;
- if (cb > 4096) return 13;
- if (cb > 2048) return 12;
- if (cb > 1024) return 11;
- if (cb > 512) return 10;
- if (cb > 256) return 9;
- return 8;
-}
-
-static int
-zlib_advance(struct zlib *zlib, png_uint_32 nbytes)
- /* Read nbytes compressed bytes; the stream will be initialized if required.
- * Bytes are always being reread and errors are fatal. The return code is as
- * follows:
- *
- * -1: saw the "too far back" error
- * 0: ok, keep going
- * 1: saw Z_STREAM_END (zlib->extra_bytes indicates too much data)
- * 2: a zlib error that cannot be corrected (error message already
- * output if required.)
- */
-# define ZLIB_TOO_FAR_BACK (-1)
-# define ZLIB_OK 0
-# define ZLIB_STREAM_END 1
-# define ZLIB_FATAL 2
-{
- int state = zlib->state;
- int endrc = ZLIB_OK;
- png_uint_32 in_bytes = 0;
- struct file *file = zlib->file;
-
- assert(state >= 0);
-
- while (in_bytes < nbytes && endrc == ZLIB_OK)
- {
- png_uint_32 out_bytes;
- int flush;
- png_byte bIn = reread_byte(file);
- png_byte bOut;
-
- switch (state)
- {
- case 0: /* first header byte */
- {
- int file_bits = 8+(bIn >> 4);
- int new_bits = zlib->window_bits;
-
- zlib->file_bits = file_bits;
-
- /* Check against the existing value - it may not need to be
- * changed. Note that a bogus file_bits is allowed through once,
- * to see if it works, but the window_bits value is set to 15,
- * the maximum.
- */
- if (new_bits == 0) /* no change */
- zlib->window_bits = ((file_bits > 15) ? 15 : file_bits);
-
- else if (new_bits != file_bits) /* rewrite required */
- bIn = (png_byte)((bIn & 0xf) + ((new_bits-8) << 4));
- }
-
- zlib->header[0] = bIn;
- zlib->state = state = 1;
- break;
-
- case 1: /* second header byte */
- {
- int b2 = bIn & 0xe0; /* top 3 bits */
-
- /* The checksum calculation, on the first 11 bits: */
- b2 += 0x1f - ((zlib->header[0] << 8) + b2) % 0x1f;
-
- /* Update the checksum byte if required: */
- if (bIn != b2)
- {
- /* If the first byte wasn't changed this indicates an error in
- * the checksum calculation; signal this by setting 'cksum'.
- */
- if (zlib->file_bits == zlib->window_bits)
- zlib->cksum = 1;
-
- bIn = (png_byte)b2;
- }
- }
-
- zlib->header[1] = bIn;
- zlib->state = state = 2;
- break;
-
- default: /* After the header bytes */
- break;
- }
-
- /* For some streams, perhaps only those compressed with 'superfast
- * compression' (which results in a lot of copying) Z_BUF_ERROR can happen
- * immediately after all output has been flushed on the next input byte.
- * This is handled below when Z_BUF_ERROR is detected by adding an output
- * byte.
- */
- zlib->z.next_in = &bIn;
- zlib->z.avail_in = 1;
- zlib->z.next_out = &bOut;
- zlib->z.avail_out = 0; /* Initially */
-
- /* Initially use Z_NO_FLUSH in an attempt to persuade zlib to look at this
- * byte without confusing what is going on with output.
- */
- flush = Z_NO_FLUSH;
- out_bytes = 0;
-
- /* NOTE: expression 3 is only evaluated on 'continue', because of the
- * 'break' at the end of this loop below.
- */
- for (;endrc == ZLIB_OK;
- flush = Z_SYNC_FLUSH,
- zlib->z.next_out = &bOut,
- zlib->z.avail_out = 1,
- ++out_bytes)
- {
- zlib->rc = inflate(&zlib->z, flush);
- out_bytes -= zlib->z.avail_out;
-
- switch (zlib->rc)
- {
- case Z_BUF_ERROR:
- if (zlib->z.avail_out == 0)
- continue; /* Try another output byte. */
-
- if (zlib->z.avail_in == 0)
- break; /* Try another input byte */
-
- /* Both avail_out and avail_in are 1 yet zlib returned a code
- * indicating no progress was possible. This is unexpected.
- */
- zlib_message(zlib, 1/*unexpected*/);
- endrc = ZLIB_FATAL; /* stop processing */
- break;
-
- case Z_OK:
- /* Zlib is supposed to have made progress: */
- assert(zlib->z.avail_out == 0 || zlib->z.avail_in == 0);
- continue;
-
- case Z_STREAM_END:
- /* This is the successful end. */
- zlib->state = 3; /* end of stream */
- endrc = ZLIB_STREAM_END;
- break;
-
- case Z_NEED_DICT:
- zlib_message(zlib, 0/*stream error*/);
- endrc = ZLIB_FATAL;
- break;
-
- case Z_DATA_ERROR:
- /* The too far back error can be corrected, others cannot: */
- if (zlib->z.msg != NULL &&
- strcmp(zlib->z.msg, "invalid distance too far back") == 0)
- {
- endrc = ZLIB_TOO_FAR_BACK;
- break;
- }
- /* FALLTHROUGH */
-
- default:
- zlib_message(zlib, 0/*stream error*/);
- endrc = ZLIB_FATAL;
- break;
- } /* switch (inflate rc) */
-
- /* Control gets here when further output is not possible; endrc may
- * still be ZLIB_OK if more input is required.
- */
- break;
- } /* for (output bytes) */
-
- /* Keep a running count of output byte produced: */
- zlib->uncompressed_digits = uarb_add32(zlib->uncompressed_bytes,
- zlib->uncompressed_digits, out_bytes);
-
- /* Keep going, the loop will terminate when endrc is no longer set to
- * ZLIB_OK or all the input bytes have been consumed; meanwhile keep
- * adding input bytes.
- */
- assert(zlib->z.avail_in == 0 || endrc != ZLIB_OK);
-
- in_bytes += 1 - zlib->z.avail_in;
- } /* while (input bytes) */
-
- assert(in_bytes == nbytes || endrc != ZLIB_OK);
-
- /* Update the running total of input bytes consumed */
- zlib->compressed_digits = uarb_add32(zlib->compressed_bytes,
- zlib->compressed_digits, in_bytes - zlib->z.avail_in);
-
- /* At the end of the stream update the chunk with the accumulated
- * information if it is an improvement:
- */
- if (endrc == ZLIB_STREAM_END && zlib->window_bits < zlib->ok_bits)
- {
- struct chunk *chunk = zlib->chunk;
-
- chunk->uncompressed_digits = uarb_copy(chunk->uncompressed_bytes,
- zlib->uncompressed_bytes, zlib->uncompressed_digits);
- chunk->compressed_digits = uarb_copy(chunk->compressed_bytes,
- zlib->compressed_bytes, zlib->compressed_digits);
- chunk->rewrite_buffer[0] = zlib->header[0];
- chunk->rewrite_buffer[1] = zlib->header[1];
-
- if (zlib->window_bits != zlib->file_bits || zlib->cksum)
- {
- /* A rewrite is required */
- chunk->rewrite_offset = zlib->rewrite_offset;
- chunk->rewrite_length = 2;
- }
-
- else
- {
- chunk->rewrite_offset = 0;
- chunk->rewrite_length = 0;
- }
-
- if (in_bytes < nbytes)
- chunk_message(chunk, "extra compressed data");
-
- zlib->extra_bytes = nbytes - in_bytes;
- zlib->ok_bits = zlib->window_bits;
- }
-
- return endrc;
-}
-
-static int
-zlib_run(struct zlib *zlib)
- /* Like zlib_advance but also handles a stream of IDAT chunks. */
-{
- /* The 'extra_bytes' field is set by zlib_advance if there is extra
- * compressed data in the chunk it handles (if it sees Z_STREAM_END before
- * all the input data has been used.) This function uses the value to update
- * the correct chunk length, so the problem should only ever be detected once
- * for each chunk. zlib_advance outputs the error message, though see the
- * IDAT specific check below.
- */
- zlib->extra_bytes = 0;
-
- if (zlib->idat != NULL)
- {
- struct IDAT_list *list = zlib->idat->idat_list_head;
- struct IDAT_list *last = zlib->idat->idat_list_tail;
- int skip = 0;
-
- /* 'rewrite_offset' is the offset of the LZ data within the chunk, for
- * IDAT it should be 0:
- */
- assert(zlib->rewrite_offset == 0);
-
- /* Process each IDAT_list in turn; the caller has left the stream
- * positioned at the start of the first IDAT chunk data.
- */
- for (;;)
- {
- unsigned int count = list->count;
- unsigned int i;
-
- for (i = 0; i<count; ++i)
- {
- int rc;
-
- if (skip > 0) /* Skip CRC and next IDAT header */
- skip_12(zlib->file);
-
- skip = 12; /* for the next time */
-
- rc = zlib_advance(zlib, list->lengths[i]);
-
- switch (rc)
- {
- case ZLIB_OK: /* keep going */
- break;
-
- case ZLIB_STREAM_END: /* stop */
- /* There may be extra chunks; if there are and one of them is
- * not zero length output the 'extra data' message. Only do
- * this check if errors are being output.
- */
- if (zlib->global->errors && zlib->extra_bytes == 0)
- {
- struct IDAT_list *check = list;
- int j = i+1, jcount = count;
-
- for (;;)
- {
- for (; j<jcount; ++j)
- if (check->lengths[j] > 0)
- {
- chunk_message(zlib->chunk,
- "extra compressed data");
- goto end_check;
- }
-
- if (check == last)
- break;
-
- check = check->next;
- jcount = check->count;
- j = 0;
- }
- }
-
- end_check:
- /* Terminate the list at the current position, reducing the
- * length of the last IDAT too if required.
- */
- list->lengths[i] -= zlib->extra_bytes;
- list->count = i+1;
- zlib->idat->idat_list_tail = list;
- /* FALLTHROUGH */
-
- default:
- return rc;
- }
- }
-
- /* At the end of the compressed data and Z_STREAM_END was not seen. */
- if (list == last)
- return ZLIB_OK;
-
- list = list->next;
- }
- }
-
- else
- {
- struct chunk *chunk = zlib->chunk;
- int rc;
-
- assert(zlib->rewrite_offset < chunk->chunk_length);
-
- rc = zlib_advance(zlib, chunk->chunk_length - zlib->rewrite_offset);
-
- /* The extra bytes in the chunk are handled now by adjusting the chunk
- * length to exclude them; the zlib data is always stored at the end of
- * the PNG chunk (although clearly this is not necessary.) zlib_advance
- * has already output a warning message.
- */
- chunk->chunk_length -= zlib->extra_bytes;
- return rc;
- }
-}
-
-static int /* global function; not a member function */
-zlib_check(struct file *file, png_uint_32 offset)
- /* Check the stream of zlib compressed data in either idat (if given) or (if
- * not) chunk. In fact it is zlib_run that handles the difference in reading
- * a single chunk and a list of IDAT chunks.
- *
- * In either case the input file must be positioned at the first byte of zlib
- * compressed data (the first header byte).
- *
- * The return value is true on success, including the case where the zlib
- * header may need to be rewritten, and false on an unrecoverable error.
- *
- * In the case of IDAT chunks 'offset' should be 0.
- */
-{
- fpos_t start_pos;
- struct zlib zlib;
-
- /* Record the start of the LZ data to allow a re-read. */
- file_getpos(file, &start_pos);
-
- /* First test the existing (file) window bits: */
- if (zlib_init(&zlib, file->idat, file->chunk, 0/*window bits*/, offset))
- {
- int min_bits, max_bits, rc;
-
- /* The first run using the existing window bits. */
- rc = zlib_run(&zlib);
-
- switch (rc)
- {
- case ZLIB_TOO_FAR_BACK:
- /* too far back error */
- file->status_code |= TOO_FAR_BACK;
- min_bits = zlib.window_bits + 1;
- max_bits = 15;
- break;
-
- case ZLIB_STREAM_END:
- if (!zlib.global->optimize_zlib &&
- zlib.window_bits == zlib.file_bits && !zlib.cksum)
- {
- /* The trivial case where the stream is ok and optimization was
- * not requested.
- */
- zlib_end(&zlib);
- return 1;
- }
-
- max_bits = max_window_bits(zlib.uncompressed_bytes,
- zlib.uncompressed_digits);
- if (zlib.ok_bits < max_bits)
- max_bits = zlib.ok_bits;
- min_bits = 8;
-
- /* cksum is set if there is an error in the zlib header checksum
- * calculation in the original file (and this may be the only reason
- * a rewrite is required). We can't rely on the file window bits in
- * this case, so do the optimization anyway.
- */
- if (zlib.cksum)
- chunk_message(zlib.chunk, "zlib checksum");
- break;
-
-
- case ZLIB_OK:
- /* Truncated stream; unrecoverable, gets converted to ZLIB_FATAL */
- zlib.z.msg = PNGZ_MSG_CAST("[truncated]");
- zlib_message(&zlib, 0/*expected*/);
- /* FALLTHROUGH */
-
- default:
- /* Unrecoverable error; skip the chunk; a zlib_message has already
- * been output.
- */
- zlib_end(&zlib);
- return 0;
- }
-
- /* Optimize window bits or fix a too-far-back error. min_bits and
- * max_bits have been set appropriately, ok_bits records the bit value
- * known to work.
- */
- while (min_bits < max_bits || max_bits < zlib.ok_bits/*if 16*/)
- {
- int test_bits = (min_bits + max_bits) >> 1;
-
- if (zlib_reset(&zlib, test_bits))
- {
- file_setpos(file, &start_pos);
- rc = zlib_run(&zlib);
-
- switch (rc)
- {
- case ZLIB_TOO_FAR_BACK:
- min_bits = test_bits+1;
- if (min_bits > max_bits)
- {
- /* This happens when the stream really is damaged and it
- * contains a distance code that addresses bytes before
- * the start of the uncompressed data.
- */
- assert(test_bits == 15);
-
- /* Output the error that wasn't output before: */
- if (zlib.z.msg == NULL)
- zlib.z.msg = PNGZ_MSG_CAST(
- "invalid distance too far back");
- zlib_message(&zlib, 0/*stream error*/);
- zlib_end(&zlib);
- return 0;
- }
- break;
-
- case ZLIB_STREAM_END: /* success */
- max_bits = test_bits;
- break;
-
- default:
- /* A fatal error; this happens if a too-far-back error was
- * hiding a more serious error, zlib_advance has already
- * output a zlib_message.
- */
- zlib_end(&zlib);
- return 0;
- }
- }
-
- else /* inflateReset2 failed */
- {
- zlib_end(&zlib);
- return 0;
- }
- }
-
- /* The loop guarantees this */
- assert(zlib.ok_bits == max_bits);
- zlib_end(&zlib);
- return 1;
- }
-
- else /* zlib initialization failed - skip the chunk */
- {
- zlib_end(&zlib);
- return 0;
- }
-}
-
-/***************************** LIBPNG CALLBACKS *******************************/
-/* The strategy here is to run a regular libpng PNG file read but examine the
- * input data (from the file) before passing it to libpng so as to be aware of
- * the state we expect libpng to be in. Warning and error callbacks are also
- * intercepted so that they can be quieted and interpreted. Interpretation
- * depends on a somewhat risky string match for known error messages; let us
- * hope that this can be fixed in the next version of libpng.
- *
- * The control structure is pointed to by the libpng error pointer. It contains
- * that set of structures which must persist across multiple read callbacks,
- * which is pretty much everything except the 'zlib' control structure.
- *
- * The file structure is instantiated in the caller of the per-file routine, but
- * the per-file routine contains the chunk and IDAT control structures.
- */
-/* The three routines read_chunk, process_chunk and sync_stream can only be
- * called via a call to read_chunk and only exit at a return from process_chunk.
- * These routines could have been written as one confusing large routine,
- * instead this code relies on the compiler to do tail call elimination. The
- * possible calls are as follows:
- *
- * read_chunk
- * -> sync_stream
- * -> process_chunk
- * -> process_chunk
- * -> read_chunk
- * returns
- */
-static void read_chunk(struct file *file);
-static void
-process_chunk(struct file *file, png_uint_32 file_crc, png_uint_32 next_length,
- png_uint_32 next_type)
- /* Called when the chunk data has been read, next_length and next_type
- * will be set for the next chunk (or 0 if this is IEND).
- *
- * When this routine returns, chunk_length and chunk_type will be set for the
- * next chunk to write because if a chunk is skipped this return calls back
- * to read_chunk.
- */
-{
- png_uint_32 type = file->type;
-
- if (file->global->verbose > 1)
- {
- fputs(" ", stderr);
- type_name(file->type, stderr);
- fprintf(stderr, " %lu 0x%.8x 0x%.8x\n", (unsigned long)file->length,
- file->crc ^ 0xffffffff, file_crc);
- }
-
- /* The basic structure seems correct but the CRC may not match, in this
- * case assume that it is simply a bad CRC, either wrongly calculated or
- * because of damaged stream data.
- */
- if ((file->crc ^ 0xffffffff) != file_crc)
- {
- /* The behavior is set by the 'skip' setting; if it is anything other
- * than SKIP_BAD_CRC ignore the bad CRC and return the chunk, with a
- * corrected CRC and possibly processed, to libpng. Otherwise skip the
- * chunk, which will result in a fatal error if the chunk is critical.
- */
- file->status_code |= CRC_ERROR;
-
- /* Ignore the bad CRC */
- if (file->global->skip != SKIP_BAD_CRC)
- type_message(file, type, "bad CRC");
-
- /* This will cause an IEND with a bad CRC to stop */
- else if (CRITICAL(type))
- stop(file, READ_ERROR_CODE, "bad CRC in critical chunk");
-
- else
- {
- type_message(file, type, "skipped: bad CRC");
-
- /* NOTE: this cannot be reached for IEND because it is critical. */
- goto skip_chunk;
- }
- }
-
- /* Check for other 'skip' cases and handle these; these only apply to
- * ancillary chunks (and not tRNS, which should probably have been a critical
- * chunk.)
- */
- if (skip_chunk_type(file->global, type))
- goto skip_chunk;
-
- /* The chunk may still be skipped if problems are detected in the LZ data,
- * however the LZ data check requires a chunk. Handle this by instantiating
- * a chunk unless an IDAT is already instantiated (IDAT control structures
- * instantiate their own chunk.)
- */
- if (type != png_IDAT)
- file->alloc(file, 0/*chunk*/);
-
- else if (file->idat == NULL)
- file->alloc(file, 1/*IDAT*/);
-
- else
- {
- /* The chunk length must be updated for process_IDAT */
- assert(file->chunk != NULL);
- assert(file->chunk->chunk_type == png_IDAT);
- file->chunk->chunk_length = file->length;
- }
-
- /* Record the 'next' information too, now that the original values for
- * this chunk have been copied. Notice that the IDAT chunks only make a
- * copy of the position of the first chunk, this is fine - process_IDAT does
- * not need the position of this chunk.
- */
- file->length = next_length;
- file->type = next_type;
- getpos(file);
-
- /* Do per-type processing, note that if this code does not return from the
- * function the chunk will be skipped. The rewrite is cancelled here so that
- * it can be set in the per-chunk processing.
- */
- file->chunk->rewrite_length = 0;
- file->chunk->rewrite_offset = 0;
- switch (type)
- {
- default:
- return;
-
- case png_IHDR:
- /* Read this now and update the control structure with the information
- * it contains. The header is validated completely to ensure this is a
- * PNG.
- */
- {
- struct chunk *chunk = file->chunk;
-
- if (chunk->chunk_length != 13)
- stop_invalid(file, "IHDR length");
-
- /* Read all the IHDR information and validate it. */
- setpos(chunk);
- file->width = reread_4(file);
- file->height = reread_4(file);
- file->bit_depth = reread_byte(file);
- file->color_type = reread_byte(file);
- file->compression_method = reread_byte(file);
- file->filter_method = reread_byte(file);
- file->interlace_method = reread_byte(file);
-
- /* This validates all the fields, and calls stop_invalid if
- * there is a problem.
- */
- calc_image_size(file);
- }
- return;
-
- /* Ancillary chunks that require further processing: */
- case png_zTXt: case png_iCCP:
- if (process_zTXt_iCCP(file))
- return;
- chunk_end(&file->chunk);
- file_setpos(file, &file->data_pos);
- break;
-
- case png_iTXt:
- if (process_iTXt(file))
- return;
- chunk_end(&file->chunk);
- file_setpos(file, &file->data_pos);
- break;
-
- case png_IDAT:
- if (process_IDAT(file))
- return;
- /* First pass: */
- assert(next_type == png_IDAT);
- break;
- }
-
- /* Control reaches this point if the chunk must be skipped. For chunks other
- * than IDAT this means that the zlib compressed data is fatally damanged and
- * the chunk will not be passed to libpng. For IDAT it means that the end of
- * the IDAT stream has not yet been reached and we must handle the next
- * (IDAT) chunk. If the LZ data in an IDAT stream cannot be read 'stop' must
- * be used to halt parsing of the PNG.
- */
- read_chunk(file);
- return;
-
- /* This is the generic code to skip the current chunk; simply jump to the
- * next one.
- */
-skip_chunk:
- file->length = next_length;
- file->type = next_type;
- getpos(file);
- read_chunk(file);
-}
-
-static png_uint_32
-get32(png_bytep buffer, int offset)
- /* Read a 32-bit value from an 8-byte circular buffer (used only below).
- */
-{
- return
- (buffer[ offset & 7] << 24) +
- (buffer[(offset+1) & 7] << 16) +
- (buffer[(offset+2) & 7] << 8) +
- (buffer[(offset+3) & 7] );
-}
-
-static void
-sync_stream(struct file *file)
- /* The stream seems to be messed up, attempt to resync from the current chunk
- * header. Executes stop on a fatal error, otherwise calls process_chunk.
- */
-{
- png_uint_32 file_crc;
-
- file->status_code |= STREAM_ERROR;
-
- if (file->global->verbose)
- {
- fputs(" SYNC ", stderr);
- type_name(file->type, stderr);
- putc('\n', stderr);
- }
-
- /* Return to the start of the chunk data */
- file_setpos(file, &file->data_pos);
- file->read_count = 8;
-
- if (read_4(file, &file_crc) == 4) /* else completely truncated */
- {
- /* Ignore the recorded chunk length, proceed through the data looking for
- * a leading sequence of bytes that match the CRC in the following four
- * bytes. Each time a match is found check the next 8 bytes for a valid
- * length, chunk-type pair.
- */
- png_uint_32 length;
- png_uint_32 type = file->type;
- png_uint_32 crc = crc_init_4(type);
- png_byte buffer[8];
- unsigned int nread = 0, nused = 0;
-
- for (length=0; length <= 0x7fffffff; ++length)
- {
- int ch;
-
- if ((crc ^ 0xffffffff) == file_crc)
- {
- /* A match on the CRC; for IEND this is sufficient, but for anything
- * else expect a following chunk header.
- */
- if (type == png_IEND)
- {
- file->length = length;
- process_chunk(file, file_crc, 0, 0);
- return;
- }
-
- else
- {
- /* Need 8 bytes */
- while (nread < 8+nused)
- {
- ch = read_byte(file);
- if (ch == EOF)
- goto truncated;
- buffer[(nread++) & 7] = (png_byte)ch;
- }
-
- /* Prevent overflow */
- nread -= nused & ~7;
- nused -= nused & ~7; /* or, nused &= 7 ;-) */
-
- /* Examine the 8 bytes for a valid chunk header. */
- {
- png_uint_32 next_length = get32(buffer, nused);
-
- if (next_length < 0x7fffffff)
- {
- png_uint_32 next_type = get32(buffer, nused+4);
-
- if (chunk_type_valid(next_type))
- {
- file->read_count -= 8;
- process_chunk(file, file_crc, next_length, next_type);
- return;
- }
- }
-
- /* Not valid, keep going. */
- }
- }
- }
-
- /* This catches up with the circular buffer which gets filled above
- * while checking a chunk header. This code is slightly tricky - if
- * the chunk_type is IEND the buffer will never be used, if it is not
- * the code will always read ahead exactly 8 bytes and pass this on to
- * process_chunk. So the invariant that IEND leaves the file position
- * after the IEND CRC and other chunk leave it after the *next* chunk
- * header is not broken.
- */
- if (nread <= nused)
- {
- ch = read_byte(file);
-
- if (ch == EOF)
- goto truncated;
- }
-
- else
- ch = buffer[(++nused) & 7];
-
- crc = crc_one_byte(crc, file_crc >> 24);
- file_crc = (file_crc << 8) + ch;
- }
-
- /* Control gets to here if when 0x7fffffff bytes (plus 8) have been read,
- * ok, treat this as a damaged stream too:
- */
- }
-
-truncated:
- stop(file, READ_ERROR_CODE, "damaged PNG stream");
-}
-
-static void
-read_chunk(struct file *file)
- /* On entry file::data_pos must be set to the position of the first byte
- * of the chunk data *and* the input file must be at this position. This
- * routine (via process_chunk) instantiates a chunk or IDAT control structure
- * based on file::length and file::type and also resets these fields and
- * file::data_pos for the chunk after this one. For an IDAT chunk the whole
- * stream of IDATs will be read, until something other than an IDAT is
- * encountered, and the file fields will be set for the chunk after the end
- * of the stream of IDATs.
- *
- * For IEND the file::type field will be set to 0, and nothing beyond the end
- * of the IEND chunk will have been read.
- */
-{
- png_uint_32 length = file->length;
- png_uint_32 type = file->type;
-
- /* After IEND file::type is set to 0, if libpng attempts to read
- * more data at this point this is a bug in libpng.
- */
- if (type == 0)
- stop(file, UNEXPECTED_ERROR_CODE, "read beyond IEND");
-
- if (file->global->verbose > 2)
- {
- fputs(" ", stderr);
- type_name(type, stderr);
- fprintf(stderr, " %lu\n", (unsigned long)length);
- }
-
- /* Start the read_crc calculation with the chunk type, then read to the end
- * of the chunk data (without processing it in any way) to check that it is
- * all there and calculate the CRC.
- */
- file->crc = crc_init_4(type);
- if (crc_read_many(file, length)) /* else it was truncated */
- {
- png_uint_32 file_crc; /* CRC read from file */
- unsigned int nread = read_4(file, &file_crc);
-
- if (nread == 4)
- {
- if (type != png_IEND) /* do not read beyond IEND */
- {
- png_uint_32 next_length;
-
- nread += read_4(file, &next_length);
- if (nread == 8 && next_length <= 0x7fffffff)
- {
- png_uint_32 next_type;
-
- nread += read_4(file, &next_type);
-
- if (nread == 12 && chunk_type_valid(next_type))
- {
- /* Adjust the read count back to the correct value for this
- * chunk.
- */
- file->read_count -= 8;
- process_chunk(file, file_crc, next_length, next_type);
- return;
- }
- }
- }
-
- else /* IEND */
- {
- process_chunk(file, file_crc, 0, 0);
- return;
- }
- }
- }
-
- /* Control gets to here if the stream seems invalid or damaged in some
- * way. Either there was a problem reading all the expected data (this
- * chunk's data, its CRC and the length and type of the next chunk) or the
- * next chunk length/type are invalid. Notice that the cases that end up
- * here all correspond to cases that would otherwise terminate the read of
- * the PNG file.
- */
- sync_stream(file);
-}
-
-/* This returns a file* from a png_struct in an implementation specific way. */
-static struct file *get_control(png_const_structrp png_ptr);
-
-static void PNGCBAPI
-error_handler(png_structp png_ptr, png_const_charp message)
-{
- stop(get_control(png_ptr), LIBPNG_ERROR_CODE, message);
-}
-
-static void PNGCBAPI
-warning_handler(png_structp png_ptr, png_const_charp message)
-{
- struct file *file = get_control(png_ptr);
-
- if (file->global->warnings)
- emit_error(file, LIBPNG_WARNING_CODE, message);
-}
-
-/* Read callback - this is where the work gets done to check the stream before
- * passing it to libpng
- */
-static void PNGCBAPI
-read_callback(png_structp png_ptr, png_bytep buffer, size_t count)
- /* Return 'count' bytes to libpng in 'buffer' */
-{
- struct file *file = get_control(png_ptr);
- png_uint_32 type, length; /* For the chunk be *WRITTEN* */
- struct chunk *chunk;
-
- /* libpng should always ask for at least one byte */
- if (count == 0)
- stop(file, UNEXPECTED_ERROR_CODE, "read callback for 0 bytes");
-
- /* The callback always reads ahead by 8 bytes - the signature or chunk header
- * - these bytes are stored in chunk_length and chunk_type. This block is
- * executed once for the signature and once for the first chunk right at the
- * start.
- */
- if (file->read_count < 8)
- {
- assert(file->read_count == 0);
- assert((file->status_code & TRUNCATED) == 0);
-
- (void)read_4(file, &file->length);
-
- if (file->read_count == 4)
- (void)read_4(file, &file->type);
-
- if (file->read_count < 8)
- {
- assert((file->status_code & TRUNCATED) != 0);
- stop(file, READ_ERROR_CODE, "not a PNG (too short)");
- }
-
- if (file->state == STATE_SIGNATURE)
- {
- if (file->length != sig1 || file->type != sig2)
- stop(file, LIBPNG_ERROR_CODE, "not a PNG (signature)");
-
- /* Else write it (this is the initialization of write_count, prior to
- * this it contains CLEAR garbage.)
- */
- file->write_count = 0;
- }
-
- else
- {
- assert(file->state == STATE_CHUNKS);
-
- /* The first chunk must be a well formed IHDR (this could be relaxed to
- * use the checks in process_chunk, but that seems unnecessary.)
- */
- if (file->length != 13 || file->type != png_IHDR)
- stop(file, LIBPNG_ERROR_CODE, "not a PNG (IHDR)");
-
- /* The position of the data must be stored too */
- getpos(file);
- }
- }
-
- /* Retrieve previous state (because the read callbacks are made pretty much
- * byte-by-byte in the sequential reader prior to 1.7).
- */
- chunk = file->chunk;
-
- if (chunk != NULL)
- {
- length = chunk->chunk_length;
- type = chunk->chunk_type;
- }
-
- else
- {
- /* This is the signature case; for IDAT and other chunks these values will
- * be overwritten when read_chunk is called below.
- */
- length = file->length;
- type = file->type;
- }
-
- do
- {
- png_uint_32 b;
-
- /* Complete the read of a chunk; as a side effect this also instantiates
- * a chunk control structure and sets the file length/type/data_pos fields
- * for the *NEXT* chunk header.
- *
- * NOTE: at an IDAT any following IDAT chunks will also be read and the
- * next_ fields will refer to the chunk after the last IDAT.
- *
- * NOTE: read_chunk only returns when it has read a chunk that must now be
- * written.
- */
- if (file->state != STATE_SIGNATURE && chunk == NULL)
- {
- assert(file->read_count == 8);
- assert(file->idat == NULL);
- read_chunk(file);
- chunk = file->chunk;
- assert(chunk != NULL);
-
- /* Do the initialization that was not done before. */
- length = chunk->chunk_length;
- type = chunk->chunk_type;
-
- /* And start writing the new chunk. */
- file->write_count = 0;
- }
-
- /* The chunk_ fields describe a chunk that must be written, or hold the
- * signature. Write the header first. In the signature case this
- * rewrites the signature.
- */
- switch (file->write_count)
- {
- case 0: b = length >> 24; break;
- case 1: b = length >> 16; break;
- case 2: b = length >> 8; break;
- case 3: b = length ; break;
-
- case 4: b = type >> 24; break;
- case 5: b = type >> 16; break;
- case 6: b = type >> 8; break;
- case 7: b = type ; break;
-
- case 8:
- /* The header has been written. If this is really the signature
- * that's all that is required and we can go to normal chunk
- * processing.
- */
- if (file->state == STATE_SIGNATURE)
- {
- /* The signature has been written, the tail call to read_callback
- * below (it's just a goto to the start with a decent compiler)
- * will read the IHDR header ahead and validate it.
- */
- assert(length == sig1 && type == sig2);
- file->read_count = 0; /* Forces a header read */
- file->state = STATE_CHUNKS; /* IHDR: checked above */
- read_callback(png_ptr, buffer, count);
- return;
- }
-
- else
- {
- assert(chunk != NULL);
-
- /* Set up for write, notice that repositioning the input stream
- * is only necessary if something is to be read from it. Also
- * notice that for the IDAT stream this must only happen once -
- * on the first IDAT - to get back to the start of the list and
- * this is done inside process_IDAT:
- */
- chunk->write_crc = crc_init_4(type);
- if (file->state != STATE_IDAT && length > 0)
- setpos(chunk);
- }
- /* FALLTHROUGH */
-
- default:
- assert(chunk != NULL);
-
- /* NOTE: the arithmetic below overflows and gives a large positive
- * png_uint_32 value until the whole chunk data has been written.
- */
- switch (file->write_count - length)
- {
- /* Write the chunk data, normally this just comes from
- * the file. The only exception is for that part of a
- * chunk which is zlib data and which must be rewritten,
- * and IDAT chunks which can be completely
- * reconstructed.
- */
- default:
- if (file->state == STATE_IDAT)
- {
- struct IDAT *idat = file->idat;
-
- assert(idat != NULL);
-
- /* Read an IDAT byte from the input stream of IDAT chunks.
- * Because the IDAT stream can be re-chunked this stream is
- * held in the struct IDAT members. The chunk members, in
- * particular chunk_length (and therefore the length local)
- * refer to the output chunk.
- */
- while (idat->idat_index >= idat->idat_length)
- {
- /* Advance one chunk */
- struct IDAT_list *cur = idat->idat_cur;
-
- assert(idat->idat_index == idat->idat_length);
- assert(cur != NULL && cur->count > 0);
-
- /* NOTE: IDAT_list::count here, not IDAT_list::length */
- if (++(idat->idat_count) >= cur->count)
- {
- assert(idat->idat_count == cur->count);
-
- /* Move on to the next IDAT_list: */
- cur = cur->next;
-
- /* This is an internal error - read beyond the end of
- * the pre-calculated stream.
- */
- if (cur == NULL || cur->count == 0)
- stop(file, UNEXPECTED_ERROR_CODE,
- "read beyond end of IDAT");
-
- idat->idat_count = 0;
- idat->idat_cur = cur;
- }
-
- idat->idat_index = 0;
- /* Zero length IDAT chunks are permitted, so the length
- * here may be 0.
- */
- idat->idat_length = cur->lengths[idat->idat_count];
-
- /* And skip 12 bytes to the next chunk data */
- skip_12(file);
- }
-
- /* The index is always that of the next byte, the rest of
- * the information is always the current IDAT chunk and the
- * current list.
- */
- ++(idat->idat_index);
- }
-
- /* Read the byte from the stream. */
- b = reread_byte(file);
-
- /* If the byte must be rewritten handle that here */
- if (chunk->rewrite_length > 0)
- {
- if (chunk->rewrite_offset > 0)
- --(chunk->rewrite_offset);
-
- else
- {
- b = chunk->rewrite_buffer[0];
- memmove(chunk->rewrite_buffer, chunk->rewrite_buffer+1,
- (sizeof chunk->rewrite_buffer)-
- (sizeof chunk->rewrite_buffer[0]));
-
- --(chunk->rewrite_length);
- }
- }
-
- chunk->write_crc = crc_one_byte(chunk->write_crc, b);
- break;
-
- /* The CRC is written at:
- *
- * chunk_write == chunk_length+8..chunk_length+11
- *
- * so 8 to 11. The CRC is not (yet) conditioned.
- */
- case 8: b = chunk->write_crc >> 24; goto write_crc;
- case 9: b = chunk->write_crc >> 16; goto write_crc;
- case 10: b = chunk->write_crc >> 8; goto write_crc;
- case 11:
- /* This must happen before the chunk_end below: */
- b = chunk->write_crc;
-
- if (file->global->verbose > 2)
- {
- fputs(" ", stderr);
- type_name(type, stderr);
- fprintf(stderr, " %lu 0x%.8x\n", (unsigned long)length,
- chunk->write_crc ^ 0xffffffff);
- }
-
- /* The IDAT stream is written without a call to read_chunk
- * until the end is reached. rechunk_length() calculates the
- * length of the output chunks. Control gets to this point at
- * the end of an *output* chunk - the length calculated by
- * rechunk_length. If this corresponds to the end of the
- * input stream stop writing IDAT chunks, otherwise continue.
- */
- if (file->state == STATE_IDAT &&
- (file->idat->idat_index < file->idat->idat_length ||
- 1+file->idat->idat_count < file->idat->idat_cur->count ||
- file->idat->idat_cur != file->idat->idat_list_tail))
- {
- /* Write another IDAT chunk. Call rechunk_length to
- * calculate the length required.
- */
- length = chunk->chunk_length =
- rechunk_length(file->idat, 0/*end*/);
- assert(type == png_IDAT);
- file->write_count = 0; /* for the new chunk */
- --(file->write_count); /* fake out the increment below */
- }
-
- else
- {
- /* Entered at the end of a non-IDAT chunk and at the end of
- * the IDAT stream. The rewrite should have been cleared.
- */
- if (chunk->rewrite_length > 0 || chunk->rewrite_offset > 0)
- stop(file, UNEXPECTED_ERROR_CODE, "pending rewrite");
-
- /* This is the last byte so reset chunk_read for the next
- * chunk and move the input file to the position after the
- * *next* chunk header if required.
- */
- file->read_count = 8;
- file_setpos(file, &file->data_pos);
-
- if (file->idat == NULL)
- chunk_end(&file->chunk);
-
- else
- IDAT_end(&file->idat);
- }
-
- write_crc:
- b ^= 0xff; /* conditioning */
- break;
- }
- break;
- }
-
- /* Write one byte */
- b &= 0xff;
- *buffer++ = (png_byte)b;
- --count;
- write_byte(file, (png_byte)b); /* increments chunk_write */
- }
- while (count > 0);
-}
-
-/* Bundle the file and an uninitialized chunk and IDAT control structure
- * together to allow implementation of the chunk/IDAT allocate routine.
- */
-struct control
-{
- struct file file;
- struct chunk chunk;
- struct IDAT idat;
-};
-
-static int
-control_end(struct control *control)
-{
- return file_end(&control->file);
-}
-
-static struct file *
-get_control(png_const_structrp png_ptr)
-{
- /* This just returns the (file*). The chunk and idat control structures
- * don't always exist.
- */
- struct control *control = voidcast(struct control*,
- png_get_error_ptr(png_ptr));
- return &control->file;
-}
-
-static void
-allocate(struct file *file, int allocate_idat)
-{
- struct control *control = voidcast(struct control*, file->alloc_ptr);
-
- if (allocate_idat)
- {
- assert(file->idat == NULL);
- IDAT_init(&control->idat, file);
- }
-
- else /* chunk */
- {
- assert(file->chunk == NULL);
- chunk_init(&control->chunk, file);
- }
-}
-
-static int
-control_init(struct control *control, struct global *global,
- const char *file_name, const char *out_name)
- /* This wraps file_init(&control::file) and simply returns the result from
- * file_init.
- */
-{
- return file_init(&control->file, global, file_name, out_name, control,
- allocate);
-}
-
-static int
-read_png(struct control *control)
- /* Read a PNG, return 0 on success else an error (status) code; a bit mask as
- * defined for file::status_code as above.
- */
-{
- png_structp png_ptr;
- png_infop info_ptr = NULL;
- volatile int rc;
-
- png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, control,
- error_handler, warning_handler);
-
- if (png_ptr == NULL)
- {
- /* This is not really expected. */
- log_error(&control->file, LIBPNG_ERROR_CODE, "OOM allocating png_struct");
- control->file.status_code |= INTERNAL_ERROR;
- return LIBPNG_ERROR_CODE;
- }
-
- rc = setjmp(control->file.jmpbuf);
- if (rc == 0)
- {
-# ifdef PNG_SET_USER_LIMITS_SUPPORTED
- /* Remove any limits on the size of PNG files that can be read,
- * without this we may reject files based on built-in safety
- * limits.
- */
- png_set_user_limits(png_ptr, 0x7fffffff, 0x7fffffff);
- png_set_chunk_cache_max(png_ptr, 0);
- png_set_chunk_malloc_max(png_ptr, 0);
-# endif
-
- png_set_read_fn(png_ptr, control, read_callback);
-
- info_ptr = png_create_info_struct(png_ptr);
- if (info_ptr == NULL)
- png_error(png_ptr, "OOM allocating info structure");
-
- if (control->file.global->verbose)
- fprintf(stderr, " INFO\n");
-
- png_read_info(png_ptr, info_ptr);
-
- {
- png_uint_32 height = png_get_image_height(png_ptr, info_ptr);
- int passes = png_set_interlace_handling(png_ptr);
- int pass;
-
- png_start_read_image(png_ptr);
-
- for (pass = 0; pass < passes; ++pass)
- {
- png_uint_32 y = height;
-
- /* NOTE: this skips asking libpng to return either version of
- * the image row, but libpng still reads the rows.
- */
- while (y-- > 0)
- png_read_row(png_ptr, NULL, NULL);
- }
- }
-
- if (control->file.global->verbose)
- fprintf(stderr, " END\n");
-
- /* Make sure to read to the end of the file: */
- png_read_end(png_ptr, info_ptr);
- }
-
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- return rc;
-}
-
-static int
-one_file(struct global *global, const char *file_name, const char *out_name)
-{
- int rc;
- struct control control;
-
- if (global->verbose)
- fprintf(stderr, "FILE %s -> %s\n", file_name,
- out_name ? out_name : "<none>");
-
- /* Although control_init can return a failure code the structure is always
- * initialized, so control_end can be used to accumulate any status codes.
- */
- rc = control_init(&control, global, file_name, out_name);
-
- if (rc == 0)
- rc = read_png(&control);
-
- rc |= control_end(&control);
-
- return rc;
-}
-
-static void
-usage(const char *prog)
-{
- /* ANSI C-90 limits strings to 509 characters, so use a string array: */
- size_t i;
- static const char *usage_string[] = {
-" Tests, optimizes and optionally fixes the zlib header in PNG files.",
-" Optionally, when fixing, strips ancillary chunks from the file.",
-0,
-"OPTIONS",
-" OPERATION",
-" By default files are just checked for readability with a summary of the",
-" of zlib issues founds for each compressed chunk and the IDAT stream in",
-" the file.",
-" --optimize (-o):",
-" Find the smallest deflate window size for the compressed data.",
-" --strip=[none|crc|unsafe|unused|transform|color|all]:",
-" none (default): Retain all chunks.",
-" crc: Remove chunks with a bad CRC.",
-" unsafe: Remove chunks that may be unsafe to retain if the image data",
-" is modified. This is set automatically if --max is given but",
-" may be cancelled by a later --strip=none.",
-" unused: Remove chunks not used by libpng when decoding an image.",
-" This retains any chunks that might be used by libpng image",
-" transformations.",
-" transform: unused+bKGD.",
-" color: transform+iCCP and cHRM.",
-" all: color+gAMA and sRGB.",
-" Only ancillary chunks are ever removed. In addition the tRNS and sBIT",
-" chunks are never removed as they affect exact interpretation of the",
-" image pixel values. The following known chunks are treated specially",
-" by the above options:",
-" gAMA, sRGB [all]: These specify the gamma encoding used for the pixel",
-" values.",
-" cHRM, iCCP [color]: These specify how colors are encoded. iCCP also",
-" specifies the exact encoding of a pixel value; however, in",
-" practice most programs will ignore it.",
-" bKGD [transform]: This is used by libpng transforms."
-" --max=<number>:",
-" Use IDAT chunks sized <number>. If no number is given the IDAT",
-" chunks will be the maximum size permitted; 2^31-1 bytes. If the option",
-" is omitted the original chunk sizes will not be changed. When the",
-" option is given --strip=unsafe is set automatically. This may be",
-" cancelled if you know that all unknown unsafe-to-copy chunks really are",
-" safe to copy across an IDAT size change. This is true of all chunks",
-" that have ever been formally proposed as PNG extensions.",
-" MESSAGES",
-" By default the program only outputs summaries for each file.",
-" --quiet (-q):",
-" Do not output the summaries except for files that cannot be read. With",
-" two --quiets these are not output either.",
-" --errors (-e):",
-" Output errors from libpng and the program (except too-far-back).",
-" --warnings (-w):",
-" Output warnings from libpng.",
-" OUTPUT",
-" By default nothing is written.",
-" --out=<file>:",
-" Write the optimized/corrected version of the next PNG to <file>. This",
-" overrides the following two options",
-" --suffix=<suffix>:",
-" Set --out=<name><suffix> for all following files unless overridden on",
-" a per-file basis by explicit --out.",
-" --prefix=<prefix>:",
-" Set --out=<prefix><name> for all the following files unless overridden",
-" on a per-file basis by explicit --out.",
-" These two options can be used together to produce a suffix and prefix.",
-" INTERNAL OPTIONS",
-#if 0 /*NYI*/
-#ifdef PNG_MAXIMUM_INFLATE_WINDOW
-" --test:",
-" Test the PNG_MAXIMUM_INFLATE_WINDOW option. Setting this disables",
-" output as this would produce a broken file.",
-#endif
-#endif
-0,
-"EXIT CODES",
-" *** SUBJECT TO CHANGE ***",
-" The program exit code is value in the range 0..127 holding a bit mask of",
-" the following codes. Notice that the results for each file are combined",
-" together - check one file at a time to get a meaningful error code!",
-" 0x01: The zlib too-far-back error existed in at least one chunk.",
-" 0x02: At least one chunk had a CRC error.",
-" 0x04: A chunk length was incorrect.",
-" 0x08: The file was truncated.",
-" Errors less than 16 are potentially recoverable, for a single file if the",
-" exit code is less than 16 the file could be read (with corrections if a",
-" non-zero code is returned).",
-" 0x10: The file could not be read, even with corrections.",
-" 0x20: The output file could not be written.",
-" 0x40: An unexpected, potentially internal, error occurred.",
-" If the command line arguments are incorrect the program exits with exit",
-" 255. Some older operating systems only support 7-bit exit codes, on those",
-" systems it is suggested that this program is first tested by supplying",
-" invalid arguments.",
-0,
-"DESCRIPTION",
-" " PROGRAM_NAME ":",
-" checks each PNG file on the command line for errors. By default errors are",
-" not output and the program just returns an exit code and prints a summary.",
-" With the --quiet (-q) option the summaries are suppressed too and the",
-" program only outputs unexpected errors (internal errors and file open",
-" errors).",
-" Various known problems in PNG files are fixed while the file is being read",
-" The exit code says what problems were fixed. In particular the zlib error:",
-0,
-" \"invalid distance too far back\"",
-0,
-" caused by an incorrect optimization of a zlib stream is fixed in any",
-" compressed chunk in which it is encountered. An integrity problem of the",
-" PNG stream caused by a bug in libpng which wrote an incorrect chunk length",
-" is also fixed. Chunk CRC errors are automatically fixed up.",
-0,
-" Setting one of the \"OUTPUT\" options causes the possibly modified file to",
-" be written to a new file.",
-0,
-" Notice that some PNG files with the zlib optimization problem can still be",
-" read by libpng under some circumstances. This program will still detect",
-" and, if requested, correct the error.",
-0,
-" The program will reliably process all files on the command line unless",
-" either an invalid argument causes the usage message (this message) to be",
-" produced or the program crashes.",
-0,
-" The summary lines describe issues encountered with the zlib compressed",
-" stream of a chunk. They have the following format, which is SUBJECT TO",
-" CHANGE in the future:",
-0,
-" chunk reason comp-level p1 p2 p3 p4 file",
-0,
-" p1 through p4 vary according to the 'reason'. There are always 8 space",
-" separated fields. Reasons specific formats are:",
-0,
-" chunk ERR status code read-errno write-errno message file",
-" chunk SKP comp-level file-bits zlib-rc compressed message file",
-" chunk ??? comp-level file-bits ok-bits compressed uncompress file",
-0,
-" The various fields are",
-0,
-"$1 chunk: The chunk type of a chunk in the file or 'HEAD' if a problem",
-" is reported by libpng at the start of the IDAT stream.",
-"$2 reason: One of:",
-" CHK: A zlib header checksum was detected and fixed.",
-" TFB: The zlib too far back error was detected and fixed.",
-" OK : No errors were detected in the zlib stream and optimization",
-" was not requested, or was not possible.",
-" OPT: The zlib stream window bits value could be improved (and was).",
-" SKP: The chunk was skipped because of a zlib issue (zlib-rc) with",
-" explanation 'message'",
-" ERR: The read of the file was aborted. The parameters explain why.",
-"$3 status: For 'ERR' the accumulated status code from 'EXIT CODES' above.",
-" This is printed as a 2 digit hexadecimal value",
-" comp-level: The recorded compression level (FLEVEL) of a zlib stream",
-" expressed as a string {supfast,stdfast,default,maximum}",
-"$4 code: The file exit code; where stop was called, as a fairly terse",
-" string {warning,libpng,zlib,invalid,read,write,unexpected}.",
-" file-bits: The zlib window bits recorded in the file.",
-"$5 read-errno: A system errno value from a read translated by strerror(3).",
-" zlib-rc: A zlib return code as a string (see zlib.h).",
-" ok-bits: The smallest zlib window bits value that works.",
-"$6 write-errno:A system errno value from a write translated by strerror(3).",
-" compressed: The count of compressed bytes in the zlib stream, when the",
-" reason is 'SKP'; this is a count of the bytes read from the",
-" stream when the fatal error was encountered.",
-"$7 message: An error message (spaces replaced by _, as in all parameters),",
-" uncompress: The count of bytes from uncompressing the zlib stream; this",
-" may not be the same as the number of bytes in the image.",
-"$8 file: The name of the file (this may contain spaces).",
-};
-
- fprintf(stderr, "Usage: %s {[options] png-file}\n", prog);
-
- for (i=0; i < (sizeof usage_string)/(sizeof usage_string[0]); ++i)
- {
- if (usage_string[i] != 0)
- fputs(usage_string[i], stderr);
-
- fputc('\n', stderr);
- }
-
- exit(255);
-}
-
-int
-main(int argc, const char **argv)
-{
- char temp_name[FILENAME_MAX+1];
- const char * prog = *argv;
- const char * outfile = NULL;
- const char * suffix = NULL;
- const char * prefix = NULL;
- int done = 0; /* if at least one file is processed */
- struct global global;
-
- global_init(&global);
-
- while (--argc > 0)
- {
- ++argv;
-
- if (strcmp(*argv, "--debug") == 0)
- {
- /* To help debugging problems: */
- global.errors = global.warnings = 1;
- global.quiet = 0;
- global.verbose = 7;
- }
-
- else if (strncmp(*argv, "--max=", 6) == 0)
- {
- global.idat_max = (png_uint_32)atol(6+*argv);
-
- if (global.skip < SKIP_UNSAFE)
- global.skip = SKIP_UNSAFE;
- }
-
- else if (strcmp(*argv, "--max") == 0)
- {
- global.idat_max = 0x7fffffff;
-
- if (global.skip < SKIP_UNSAFE)
- global.skip = SKIP_UNSAFE;
- }
-
- else if (strcmp(*argv, "--optimize") == 0 || strcmp(*argv, "-o") == 0)
- global.optimize_zlib = 1;
-
- else if (strncmp(*argv, "--out=", 6) == 0)
- outfile = 6+*argv;
-
- else if (strncmp(*argv, "--suffix=", 9) == 0)
- suffix = 9+*argv;
-
- else if (strncmp(*argv, "--prefix=", 9) == 0)
- prefix = 9+*argv;
-
- else if (strcmp(*argv, "--strip=none") == 0)
- global.skip = SKIP_NONE;
-
- else if (strcmp(*argv, "--strip=crc") == 0)
- global.skip = SKIP_BAD_CRC;
-
- else if (strcmp(*argv, "--strip=unsafe") == 0)
- global.skip = SKIP_UNSAFE;
-
- else if (strcmp(*argv, "--strip=unused") == 0)
- global.skip = SKIP_UNUSED;
-
- else if (strcmp(*argv, "--strip=transform") == 0)
- global.skip = SKIP_TRANSFORM;
-
- else if (strcmp(*argv, "--strip=color") == 0)
- global.skip = SKIP_COLOR;
-
- else if (strcmp(*argv, "--strip=all") == 0)
- global.skip = SKIP_ALL;
-
- else if (strcmp(*argv, "--errors") == 0 || strcmp(*argv, "-e") == 0)
- global.errors = 1;
-
- else if (strcmp(*argv, "--warnings") == 0 || strcmp(*argv, "-w") == 0)
- global.warnings = 1;
-
- else if (strcmp(*argv, "--quiet") == 0 || strcmp(*argv, "-q") == 0)
- {
- if (global.quiet)
- global.quiet = 2;
-
- else
- global.quiet = 1;
- }
-
- else if (strcmp(*argv, "--verbose") == 0 || strcmp(*argv, "-v") == 0)
- ++global.verbose;
-
-#if 0
- /* NYI */
-# ifdef PNG_MAXIMUM_INFLATE_WINDOW
- else if (strcmp(*argv, "--test") == 0)
- ++set_option;
-# endif
-#endif
-
- else if ((*argv)[0] == '-')
- usage(prog);
-
- else
- {
- size_t outlen = strlen(*argv);
-
- if (outfile == NULL) /* else this takes precedence */
- {
- /* Consider the prefix/suffix options */
- if (prefix != NULL)
- {
- size_t prefixlen = strlen(prefix);
-
- if (prefixlen+outlen > FILENAME_MAX)
- {
- fprintf(stderr, "%s: output file name too long: %s%s%s\n",
- prog, prefix, *argv, suffix ? suffix : "");
- global.status_code |= WRITE_ERROR;
- continue;
- }
-
- memcpy(temp_name, prefix, prefixlen);
- memcpy(temp_name+prefixlen, *argv, outlen);
- outlen += prefixlen;
- outfile = temp_name;
- }
-
- else if (suffix != NULL)
- memcpy(temp_name, *argv, outlen);
-
- temp_name[outlen] = 0;
-
- if (suffix != NULL)
- {
- size_t suffixlen = strlen(suffix);
-
- if (outlen+suffixlen > FILENAME_MAX)
- {
- fprintf(stderr, "%s: output file name too long: %s%s\n",
- prog, *argv, suffix);
- global.status_code |= WRITE_ERROR;
- continue;
- }
-
- memcpy(temp_name+outlen, suffix, suffixlen);
- outlen += suffixlen;
- temp_name[outlen] = 0;
- outfile = temp_name;
- }
- }
-
- (void)one_file(&global, *argv, outfile);
- ++done;
- outfile = NULL;
- }
- }
-
- if (!done)
- usage(prog);
-
- return global_end(&global);
-}
-
-#else /* ZLIB_VERNUM < 0x1240 */
-int
-main(void)
-{
- fprintf(stderr,
- "pngfix needs libpng with a zlib >=1.2.4 (not 0x%x)\n",
- ZLIB_VERNUM);
- return 77;
-}
-#endif /* ZLIB_VERNUM */
-
-#else /* No read support */
-
-int
-main(void)
-{
- fprintf(stderr, "pngfix does not work without read deinterlace support\n");
- return 77;
-}
-#endif /* PNG_READ_SUPPORTED && PNG_EASY_ACCESS_SUPPORTED */
-#else /* No setjmp support */
-int
-main(void)
-{
- fprintf(stderr, "pngfix does not work without setjmp support\n");
- return 77;
-}
-#endif /* PNG_SETJMP_SUPPORTED */
-
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/pngfix.o b/3rdparty/libpng/libpng-1.6.37/contrib/tools/pngfix.o
deleted file mode 100644
index 6b1e19c..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/pngfix.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/reindent b/3rdparty/libpng/libpng-1.6.37/contrib/tools/reindent
deleted file mode 100755
index f4df309..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/reindent
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/bin/sh
-
-# reindent a libpng C source
-
-# COPYRIGHT: Written by Glenn Randers-Pehrson, 2016.
-# To the extent possible under law, the author has waived all copyright and
-# related or neighboring rights to this work. This work is published from:
-# United States.
-
-# Usage:
-# reindent inputtabsize outputtabsize inputcontinuestring outputcontinuestring
-#
-# Assumes that continued lines begin with indentation plus one space, and
-# that continued comments begin with indentation plus " *".
-#
-# eg, to change libpng coding style from 3-space indentation with 4-space
-# continuations to 4-space indentation with 2-space continuations:
-#
-# reindent 3 4 "\t " " " < example.c > example.c_4_2
-# and to restore the file back to libpng coding style
-# reindent 4 3 " " " " < example.c_4_2 > example.c_3_4
-
-unexpand --first-only --t $1 | \
- sed -e "/^ *$3[^\*]/{s/$3/$4/}" | \
- expand -t $2
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/tools/sRGB.h b/3rdparty/libpng/libpng-1.6.37/contrib/tools/sRGB.h
deleted file mode 100644
index d1ece51..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/tools/sRGB.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*-
- * sRGB.h
- *
- * Last changed in libpng 1.6.0 [February 14, 2013]
- *
- * COPYRIGHT: Written by John Cunningham Bowler, 2013.
- * To the extent possible under law, the author has waived all copyright and
- * related or neighboring rights to this work. This work is published from:
- * United States.
- *
- * Utility file; not actually a header, this contains definitions of sRGB
- * calculation functions for inclusion in those test programs that need them.
- *
- * All routines take and return a floating point value in the range
- * 0 to 1.0, doing a calculation according to the sRGB specification
- * (in fact the source of the numbers is the wikipedia article at
- * https://en.wikipedia.org/wiki/SRGB).
- */
-static double
-sRGB_from_linear(double l)
-{
- if (l <= 0.0031308)
- l *= 12.92;
-
- else
- l = 1.055 * pow(l, 1/2.4) - 0.055;
-
- return l;
-}
-
-static double
-linear_from_sRGB(double s)
-{
- if (s <= 0.04045)
- return s / 12.92;
-
- else
- return pow((s+0.055)/1.055, 2.4);
-}
-
-static double
-YfromRGB(double r, double g, double b)
-{
- /* Use the sRGB (rounded) coefficients for Rlinear, Glinear, Blinear to get
- * the CIE Y value (also linear).
- */
- return 0.2126 * r + 0.7152 * g + 0.0722 * b;
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/PngFile.c b/3rdparty/libpng/libpng-1.6.37/contrib/visupng/PngFile.c
deleted file mode 100644
index cf943f3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/PngFile.c
+++ /dev/null
@@ -1,454 +0,0 @@
-/*-------------------------------------
- * PNGFILE.C -- Image File Functions
- *-------------------------------------
- *
- * Copyright 2000,2017 Willem van Schaik.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#include <windows.h>
-#include <commdlg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <zlib.h>
-
-#include "png.h"
-#include "pngfile.h"
-#include "cexcept.h"
-
-define_exception_type(const char *);
-extern struct exception_context the_exception_context[1];
-struct exception_context the_exception_context[1];
-png_const_charp msg;
-
-static OPENFILENAME ofn;
-
-static png_structp png_ptr = NULL;
-static png_infop info_ptr = NULL;
-
-
-/* cexcept interface */
-
-static void
-png_cexcept_error(png_structp png_ptr, png_const_charp msg)
-{
- if(png_ptr)
- ;
-#ifdef PNG_CONSOLE_IO_SUPPORTED
- fprintf(stderr, "libpng error: %s\n", msg);
-#endif
- {
- Throw msg;
- }
-}
-
-/* Windows open-file functions */
-
-void PngFileInitialize (HWND hwnd)
-{
- static TCHAR szFilter[] = TEXT ("PNG Files (*.PNG)\0*.png\0")
- TEXT ("All Files (*.*)\0*.*\0\0");
-
- ofn.lStructSize = sizeof (OPENFILENAME);
- ofn.hwndOwner = hwnd;
- ofn.hInstance = NULL;
- ofn.lpstrFilter = szFilter;
- ofn.lpstrCustomFilter = NULL;
- ofn.nMaxCustFilter = 0;
- ofn.nFilterIndex = 0;
- ofn.lpstrFile = NULL; /* Set in Open and Close functions */
- ofn.nMaxFile = MAX_PATH;
- ofn.lpstrFileTitle = NULL; /* Set in Open and Close functions */
- ofn.nMaxFileTitle = MAX_PATH;
- ofn.lpstrInitialDir = NULL;
- ofn.lpstrTitle = NULL;
- ofn.Flags = 0; /* Set in Open and Close functions */
- ofn.nFileOffset = 0;
- ofn.nFileExtension = 0;
- ofn.lpstrDefExt = TEXT ("png");
- ofn.lCustData = 0;
- ofn.lpfnHook = NULL;
- ofn.lpTemplateName = NULL;
-}
-
-BOOL PngFileOpenDlg (HWND hwnd, PTSTR pstrFileName, PTSTR pstrTitleName)
-{
- ofn.hwndOwner = hwnd;
- ofn.lpstrFile = pstrFileName;
- ofn.lpstrFileTitle = pstrTitleName;
- ofn.Flags = OFN_HIDEREADONLY;
-
- return GetOpenFileName (&ofn);
-}
-
-BOOL PngFileSaveDlg (HWND hwnd, PTSTR pstrFileName, PTSTR pstrTitleName)
-{
- ofn.hwndOwner = hwnd;
- ofn.lpstrFile = pstrFileName;
- ofn.lpstrFileTitle = pstrTitleName;
- ofn.Flags = OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT;
-
- return GetSaveFileName (&ofn);
-}
-
-/* PNG image handler functions */
-
-BOOL PngLoadImage (PTSTR pstrFileName, png_byte **ppbImageData,
- int *piWidth, int *piHeight, int *piChannels, png_color *pBkgColor)
-{
- static FILE *pfFile;
- png_byte pbSig[8];
- int iBitDepth;
- int iColorType;
- double dGamma;
- png_color_16 *pBackground;
- png_uint_32 ulChannels;
- png_uint_32 ulRowBytes;
- png_byte *pbImageData = *ppbImageData;
- static png_byte **ppbRowPointers = NULL;
- int i;
-
- /* open the PNG input file */
-
- if (!pstrFileName)
- {
- *ppbImageData = pbImageData = NULL;
- return FALSE;
- }
-
- if (!(pfFile = fopen(pstrFileName, "rb")))
- {
- *ppbImageData = pbImageData = NULL;
- return FALSE;
- }
-
- /* first check the eight byte PNG signature */
-
- fread(pbSig, 1, 8, pfFile);
- if (png_sig_cmp(pbSig, 0, 8))
- {
- *ppbImageData = pbImageData = NULL;
- return FALSE;
- }
-
- /* create the two png(-info) structures */
-
- png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL,
- (png_error_ptr)png_cexcept_error, (png_error_ptr)NULL);
- if (!png_ptr)
- {
- *ppbImageData = pbImageData = NULL;
- return FALSE;
- }
-
- info_ptr = png_create_info_struct(png_ptr);
- if (!info_ptr)
- {
- png_destroy_read_struct(&png_ptr, NULL, NULL);
- *ppbImageData = pbImageData = NULL;
- return FALSE;
- }
-
- Try
- {
-
- /* initialize the png structure */
-
-#ifdef PNG_STDIO_SUPPORTED
- png_init_io(png_ptr, pfFile);
-#else
- png_set_read_fn(png_ptr, (png_voidp)pfFile, png_read_data);
-#endif
-
- png_set_sig_bytes(png_ptr, 8);
-
- /* read all PNG info up to image data */
-
- png_read_info(png_ptr, info_ptr);
-
- /* get width, height, bit-depth and color-type */
-
- png_get_IHDR(png_ptr, info_ptr, piWidth, piHeight, &iBitDepth,
- &iColorType, NULL, NULL, NULL);
-
- /* expand images of all color-type and bit-depth to 3x8-bit RGB */
- /* let the library process alpha, transparency, background, etc. */
-
-#ifdef PNG_READ_16_TO_8_SUPPORTED
- if (iBitDepth == 16)
-# ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
- png_set_scale_16(png_ptr);
-# else
- png_set_strip_16(png_ptr);
-# endif
-#endif
- if (iColorType == PNG_COLOR_TYPE_PALETTE)
- png_set_expand(png_ptr);
- if (iBitDepth < 8)
- png_set_expand(png_ptr);
- if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS))
- png_set_expand(png_ptr);
- if (iColorType == PNG_COLOR_TYPE_GRAY ||
- iColorType == PNG_COLOR_TYPE_GRAY_ALPHA)
- png_set_gray_to_rgb(png_ptr);
-
- /* set the background color to draw transparent and alpha images over */
- if (png_get_bKGD(png_ptr, info_ptr, &pBackground))
- {
- png_set_background(png_ptr, pBackground, PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
- pBkgColor->red = (byte) pBackground->red;
- pBkgColor->green = (byte) pBackground->green;
- pBkgColor->blue = (byte) pBackground->blue;
- }
- else
- {
- pBkgColor = NULL;
- }
-
- /* if required set gamma conversion */
- if (png_get_gAMA(png_ptr, info_ptr, &dGamma))
- png_set_gamma(png_ptr, (double) 2.2, dGamma);
-
- /* after the transformations are registered, update info_ptr data */
-
- png_read_update_info(png_ptr, info_ptr);
-
- /* get again width, height and the new bit-depth and color-type */
-
- png_get_IHDR(png_ptr, info_ptr, piWidth, piHeight, &iBitDepth,
- &iColorType, NULL, NULL, NULL);
-
-
- /* row_bytes is the width x number of channels */
-
- ulRowBytes = png_get_rowbytes(png_ptr, info_ptr);
- ulChannels = png_get_channels(png_ptr, info_ptr);
-
- *piChannels = ulChannels;
-
- /* now we can allocate memory to store the image */
-
- if (pbImageData)
- {
- free (pbImageData);
- pbImageData = NULL;
- }
- if ((*piHeight) > ((size_t)(-1))/ulRowBytes) {
- {
- png_error(png_ptr, "Visual PNG: image is too big");
- }
- if ((pbImageData = (png_byte *) malloc(ulRowBytes * (*piHeight)
- * sizeof(png_byte))) == NULL)
- {
- png_error(png_ptr, "Visual PNG: out of memory");
- }
- *ppbImageData = pbImageData;
-
- /* and allocate memory for an array of row-pointers */
-
- if ((ppbRowPointers = (png_bytepp) malloc((*piHeight)
- * sizeof(png_bytep))) == NULL)
- {
- png_error(png_ptr, "Visual PNG: out of memory");
- }
-
- /* set the individual row-pointers to point at the correct offsets */
-
- for (i = 0; i < (*piHeight); i++)
- ppbRowPointers[i] = pbImageData + i * ulRowBytes;
-
- /* now we can go ahead and just read the whole image */
-
- png_read_image(png_ptr, ppbRowPointers);
-
- /* read the additional chunks in the PNG file (not really needed) */
-
- png_read_end(png_ptr, NULL);
-
- /* and we're done */
-
- free (ppbRowPointers);
- ppbRowPointers = NULL;
-
- /* yepp, done */
- }
-
- Catch (msg)
- {
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
-
- *ppbImageData = pbImageData = NULL;
-
- if(ppbRowPointers)
- free (ppbRowPointers);
-
- fclose(pfFile);
-
- return FALSE;
- }
-
- fclose (pfFile);
-
- return TRUE;
-}
-
-
-BOOL PngSaveImage (PTSTR pstrFileName, png_byte *pDiData,
- int iWidth, int iHeight, png_color bkgColor)
-{
- const int ciBitDepth = 8;
- const int ciChannels = 3;
-
- static FILE *pfFile;
- png_uint_32 ulRowBytes;
- static png_byte **ppbRowPointers = NULL;
- int i;
-
- /* open the PNG output file */
-
- if (!pstrFileName)
- return FALSE;
-
- if (!(pfFile = fopen(pstrFileName, "wb")))
- return FALSE;
-
- /* prepare the standard PNG structures */
-
- png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL,
- (png_error_ptr)png_cexcept_error, (png_error_ptr)NULL);
- if (!png_ptr)
- {
- fclose(pfFile);
- return FALSE;
- }
-
- info_ptr = png_create_info_struct(png_ptr);
- if (!info_ptr) {
- fclose(pfFile);
- png_destroy_write_struct(&png_ptr, (png_infopp) NULL);
- return FALSE;
- }
-
- Try
- {
- /* initialize the png structure */
-
-#ifdef PNG_STDIO_SUPPORTED
- png_init_io(png_ptr, pfFile);
-#else
- png_set_write_fn(png_ptr, (png_voidp)pfFile, png_write_data, png_flush);
-#endif
-
- /* we're going to write a very simple 3x8-bit RGB image */
-
- png_set_IHDR(png_ptr, info_ptr, iWidth, iHeight, ciBitDepth,
- PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE,
- PNG_FILTER_TYPE_BASE);
-
- /* write the file header information */
-
- png_write_info(png_ptr, info_ptr);
-
- /* swap the BGR pixels in the DiData structure to RGB */
-
- png_set_bgr(png_ptr);
-
- /* row_bytes is the width x number of channels */
-
- ulRowBytes = iWidth * ciChannels;
-
- /* we can allocate memory for an array of row-pointers */
-
- if ((ppbRowPointers = (png_bytepp) malloc(iHeight * sizeof(png_bytep))) == NULL)
- Throw "Visualpng: Out of memory";
-
- /* set the individual row-pointers to point at the correct offsets */
-
- for (i = 0; i < iHeight; i++)
- ppbRowPointers[i] = pDiData + i * (((ulRowBytes + 3) >> 2) << 2);
-
- /* write out the entire image data in one call */
-
- png_write_image (png_ptr, ppbRowPointers);
-
- /* write the additional chunks to the PNG file (not really needed) */
-
- png_write_end(png_ptr, info_ptr);
-
- /* and we're done */
-
- free (ppbRowPointers);
- ppbRowPointers = NULL;
-
- /* clean up after the write, and free any memory allocated */
-
- png_destroy_write_struct(&png_ptr, (png_infopp) NULL);
-
- /* yepp, done */
- }
-
- Catch (msg)
- {
- png_destroy_write_struct(&png_ptr, (png_infopp) NULL);
-
- if(ppbRowPointers)
- free (ppbRowPointers);
-
- fclose(pfFile);
-
- return FALSE;
- }
-
- fclose (pfFile);
-
- return TRUE;
-}
-
-#ifndef PNG_STDIO_SUPPORTED
-
-static void
-png_read_data(png_structp png_ptr, png_bytep data, size_t length)
-{
- size_t check;
-
- /* fread() returns 0 on error, so it is OK to store this in a size_t
- * instead of an int, which is what fread() actually returns.
- */
- check = fread(data, 1, length, (FILE *)png_ptr->io_ptr);
-
- if (check != length)
- {
- png_error(png_ptr, "Read Error");
- }
-}
-
-static void
-png_write_data(png_structp png_ptr, png_bytep data, size_t length)
-{
- png_uint_32 check;
-
- check = fwrite(data, 1, length, (FILE *)(png_ptr->io_ptr));
- if (check != length)
- {
- png_error(png_ptr, "Write Error");
- }
-}
-
-static void
-png_flush(png_structp png_ptr)
-{
- FILE *io_ptr;
- io_ptr = (FILE *)CVT_PTR((png_ptr->io_ptr));
- if (io_ptr != NULL)
- fflush(io_ptr);
-}
-
-#endif
-
-/*-----------------
- * end of source
- *-----------------
- */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/PngFile.h b/3rdparty/libpng/libpng-1.6.37/contrib/visupng/PngFile.h
deleted file mode 100644
index 1b7b9be..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/PngFile.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*------------------------------------------*/
-/* PNGFILE.H -- Header File for pngfile.c*/
-/*------------------------------------------*/
-
-/* Copyright 2000, Willem van Schaik.*/
-
-/* This code is released under the libpng license.*/
-/* For conditions of distribution and use, see the disclaimer*/
-/* and license in png.h*/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <windows.h>
-
-void PngFileInitialize (HWND hwnd) ;
-BOOL PngFileOpenDlg (HWND hwnd, PTSTR pstrFileName, PTSTR pstrTitleName) ;
-BOOL PngFileSaveDlg (HWND hwnd, PTSTR pstrFileName, PTSTR pstrTitleName) ;
-
-BOOL PngLoadImage (PTSTR pstrFileName, png_byte **ppbImageData,
- int *piWidth, int *piHeight, int *piChannels, png_color *pBkgColor);
-BOOL PngSaveImage (PTSTR pstrFileName, png_byte *pDiData,
- int iWidth, int iHeight, png_color BkgColor);
-
-#ifndef PNG_STDIO_SUPPORTED
-static void png_read_data(png_structp png_ptr, png_bytep data, size_t length);
-static void png_write_data(png_structp png_ptr, png_bytep data, size_t length);
-static void png_flush(png_structp png_ptr);
-#endif
-
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/README.txt b/3rdparty/libpng/libpng-1.6.37/contrib/visupng/README.txt
deleted file mode 100644
index 72c5cba..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/README.txt
+++ /dev/null
@@ -1,61 +0,0 @@
-Microsoft Developer Studio Build File, Format Version 6.00 for VisualPng
-------------------------------------------------------------------------
-
-Copyright 2000, Willem van Schaik.
-
-This code is released under the libpng license.
-For conditions of distribution and use, see the disclaimer
-and license in png.h
-
-As a PNG .dll demo VisualPng is finished. More features would only hinder
-the program's objective. However, further extensions (like support for other
-graphics formats) are in development. To get these, or for pre-compiled
-binaries, go to "http://www.schaik.com/png/visualpng.html".
-
-------------------------------------------------------------------------
-
-Assumes that
-
- libpng DLLs and LIBs are in ..\..\projects\msvc\win32\libpng
- zlib DLLs and LIBs are in ..\..\projects\msvc\win32\zlib
- libpng header files are in ..\..\..\libpng
- zlib header files are in ..\..\..\zlib
- the pngsuite images are in ..\pngsuite
-
-To build:
-
-1) On the main menu Select "Build|Set Active configuration".
- Choose the configuration that corresponds to the library you want to test.
- This library must have been built using the libpng MS project located in
- the "..\..\mscv" subdirectory.
-
-2) Select "Build|Clean"
-
-3) Select "Build|Rebuild All"
-
-4) After compiling and linking VisualPng will be started to view an image
- from the PngSuite directory. Press Ctrl-N (and Ctrl-V) for other images.
-
-
-To install:
-
-When distributing VisualPng (or a further development) the following options
-are available:
-
-1) Build the program with the configuration "Win32 LIB" and you only need to
- include the executable from the ./lib directory in your distribution.
-
-2) Build the program with the configuration "Win32 DLL" and you need to put
- in your distribution the executable from the ./dll directory and the dll's
- libpng1.dll, zlib.dll and msvcrt.dll. These need to be in the user's PATH.
-
-
-Willem van Schaik
-Calgary, June 6th 2000
-
-P.S. VisualPng was written based on preliminary work of:
-
- - Simon-Pierre Cadieux
- - Glenn Randers-Pehrson
- - Greg Roelofs
-
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.c b/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.c
deleted file mode 100644
index 6baa3b6..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.c
+++ /dev/null
@@ -1,978 +0,0 @@
-/*------------------------------------
- * VisualPng.C -- Shows a PNG image
- *------------------------------------
- *
- * Copyright 2000,2017 Willem van Schaik.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-/* switches */
-
-/* defines */
-
-#define PROGNAME "VisualPng"
-#define LONGNAME "Win32 Viewer for PNG-files"
-#define VERSION "1.0 of 2000 June 07"
-
-/* constants */
-
-#define MARGIN 8
-
-/* standard includes */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <windows.h>
-#include <zlib.h>
-
-/* application includes */
-
-#include "png.h"
-#include "pngfile.h"
-#include "resource.h"
-
-/* macros */
-
-/* function prototypes */
-
-LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM);
-BOOL CALLBACK AboutDlgProc (HWND, UINT, WPARAM, LPARAM) ;
-
-BOOL CenterAbout (HWND hwndChild, HWND hwndParent);
-
-BOOL BuildPngList (PTSTR pstrPathName, TCHAR **ppFileList, int *pFileCount,
- int *pFileIndex);
-
-BOOL SearchPngList (TCHAR *pFileList, int FileCount, int *pFileIndex,
- PTSTR pstrPrevName, PTSTR pstrNextName);
-
-BOOL LoadImageFile(HWND hwnd, PTSTR pstrPathName,
- png_byte **ppbImage, int *pxImgSize, int *pyImgSize, int *piChannels,
- png_color *pBkgColor);
-
-BOOL DisplayImage (HWND hwnd, BYTE **ppDib,
- BYTE **ppDiData, int cxWinSize, int cyWinSize,
- BYTE *pbImage, int cxImgSize, int cyImgSize, int cImgChannels,
- BOOL bStretched);
-
-BOOL InitBitmap (
- BYTE *pDiData, int cxWinSize, int cyWinSize);
-
-BOOL FillBitmap (
- BYTE *pDiData, int cxWinSize, int cyWinSize,
- BYTE *pbImage, int cxImgSize, int cyImgSize, int cImgChannels,
- BOOL bStretched);
-
-/* a few global variables */
-
-static char *szProgName = PROGNAME;
-static char *szAppName = LONGNAME;
-static char *szIconName = PROGNAME;
-static char szCmdFileName [MAX_PATH];
-
-/* MAIN routine */
-
-int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
- PSTR szCmdLine, int iCmdShow)
-{
- HACCEL hAccel;
- HWND hwnd;
- MSG msg;
- WNDCLASS wndclass;
- int ixBorders, iyBorders;
-
- wndclass.style = CS_HREDRAW | CS_VREDRAW;
- wndclass.lpfnWndProc = WndProc;
- wndclass.cbClsExtra = 0;
- wndclass.cbWndExtra = 0;
- wndclass.hInstance = hInstance;
- wndclass.hIcon = LoadIcon (hInstance, szIconName) ;
- wndclass.hCursor = LoadCursor (NULL, IDC_ARROW);
- wndclass.hbrBackground = NULL; /* (HBRUSH) GetStockObject (GRAY_BRUSH); */
- wndclass.lpszMenuName = szProgName;
- wndclass.lpszClassName = szProgName;
-
- if (!RegisterClass (&wndclass))
- {
- MessageBox (NULL, TEXT ("Error: this program requires Windows NT!"),
- szProgName, MB_ICONERROR);
- return 0;
- }
-
- /* if filename given on commandline, store it */
- if ((szCmdLine != NULL) && (*szCmdLine != '\0'))
- if (szCmdLine[0] == '"')
- strncpy (szCmdFileName, szCmdLine + 1, strlen(szCmdLine) - 2);
- else
- strcpy (szCmdFileName, szCmdLine);
- else
- strcpy (szCmdFileName, "");
-
- /* calculate size of window-borders */
- ixBorders = 2 * (GetSystemMetrics (SM_CXBORDER) +
- GetSystemMetrics (SM_CXDLGFRAME));
- iyBorders = 2 * (GetSystemMetrics (SM_CYBORDER) +
- GetSystemMetrics (SM_CYDLGFRAME)) +
- GetSystemMetrics (SM_CYCAPTION) +
- GetSystemMetrics (SM_CYMENUSIZE) +
- 1; /* WvS: don't ask me why? */
-
- hwnd = CreateWindow (szProgName, szAppName,
- WS_OVERLAPPEDWINDOW,
- CW_USEDEFAULT, CW_USEDEFAULT,
- 512 + 2 * MARGIN + ixBorders, 384 + 2 * MARGIN + iyBorders,
-/* CW_USEDEFAULT, CW_USEDEFAULT, */
- NULL, NULL, hInstance, NULL);
-
- ShowWindow (hwnd, iCmdShow);
- UpdateWindow (hwnd);
-
- hAccel = LoadAccelerators (hInstance, szProgName);
-
- while (GetMessage (&msg, NULL, 0, 0))
- {
- if (!TranslateAccelerator (hwnd, hAccel, &msg))
- {
- TranslateMessage (&msg);
- DispatchMessage (&msg);
- }
- }
- return msg.wParam;
-}
-
-LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam,
- LPARAM lParam)
-{
- static HINSTANCE hInstance ;
- static HDC hdc;
- static PAINTSTRUCT ps;
- static HMENU hMenu;
-
- static BITMAPFILEHEADER *pbmfh;
- static BITMAPINFOHEADER *pbmih;
- static BYTE *pbImage;
- static int cxWinSize, cyWinSize;
- static int cxImgSize, cyImgSize;
- static int cImgChannels;
- static png_color bkgColor = {127, 127, 127};
-
- static BOOL bStretched = TRUE;
-
- static BYTE *pDib = NULL;
- static BYTE *pDiData = NULL;
-
- static TCHAR szImgPathName [MAX_PATH];
- static TCHAR szTitleName [MAX_PATH];
-
- static TCHAR *pPngFileList = NULL;
- static int iPngFileCount;
- static int iPngFileIndex;
-
- BOOL bOk;
-
- switch (message)
- {
- case WM_CREATE:
- hInstance = ((LPCREATESTRUCT) lParam)->hInstance ;
- PngFileInitialize (hwnd);
-
- strcpy (szImgPathName, "");
-
- /* in case we process file given on command-line */
-
- if (szCmdFileName[0] != '\0')
- {
- strcpy (szImgPathName, szCmdFileName);
-
- /* read the other png-files in the directory for later */
- /* next/previous commands */
-
- BuildPngList (szImgPathName, &pPngFileList, &iPngFileCount,
- &iPngFileIndex);
-
- /* load the image from file */
-
- if (!LoadImageFile (hwnd, szImgPathName,
- &pbImage, &cxImgSize, &cyImgSize, &cImgChannels, &bkgColor))
- return 0;
-
- /* invalidate the client area for later update */
-
- InvalidateRect (hwnd, NULL, TRUE);
-
- /* display the PNG into the DIBitmap */
-
- DisplayImage (hwnd, &pDib, &pDiData, cxWinSize, cyWinSize,
- pbImage, cxImgSize, cyImgSize, cImgChannels, bStretched);
- }
-
- return 0;
-
- case WM_SIZE:
- cxWinSize = LOWORD (lParam);
- cyWinSize = HIWORD (lParam);
-
- /* invalidate the client area for later update */
-
- InvalidateRect (hwnd, NULL, TRUE);
-
- /* display the PNG into the DIBitmap */
-
- DisplayImage (hwnd, &pDib, &pDiData, cxWinSize, cyWinSize,
- pbImage, cxImgSize, cyImgSize, cImgChannels, bStretched);
-
- return 0;
-
- case WM_INITMENUPOPUP:
- hMenu = GetMenu (hwnd);
-
- if (pbImage)
- EnableMenuItem (hMenu, IDM_FILE_SAVE, MF_ENABLED);
- else
- EnableMenuItem (hMenu, IDM_FILE_SAVE, MF_GRAYED);
-
- return 0;
-
- case WM_COMMAND:
- hMenu = GetMenu (hwnd);
-
- switch (LOWORD (wParam))
- {
- case IDM_FILE_OPEN:
-
- /* show the File Open dialog box */
-
- if (!PngFileOpenDlg (hwnd, szImgPathName, szTitleName))
- return 0;
-
- /* read the other png-files in the directory for later */
- /* next/previous commands */
-
- BuildPngList (szImgPathName, &pPngFileList, &iPngFileCount,
- &iPngFileIndex);
-
- /* load the image from file */
-
- if (!LoadImageFile (hwnd, szImgPathName,
- &pbImage, &cxImgSize, &cyImgSize, &cImgChannels, &bkgColor))
- return 0;
-
- /* invalidate the client area for later update */
-
- InvalidateRect (hwnd, NULL, TRUE);
-
- /* display the PNG into the DIBitmap */
-
- DisplayImage (hwnd, &pDib, &pDiData, cxWinSize, cyWinSize,
- pbImage, cxImgSize, cyImgSize, cImgChannels, bStretched);
-
- return 0;
-
- case IDM_FILE_SAVE:
-
- /* show the File Save dialog box */
-
- if (!PngFileSaveDlg (hwnd, szImgPathName, szTitleName))
- return 0;
-
- /* save the PNG to a disk file */
-
- SetCursor (LoadCursor (NULL, IDC_WAIT));
- ShowCursor (TRUE);
-
- bOk = PngSaveImage (szImgPathName, pDiData, cxWinSize, cyWinSize,
- bkgColor);
-
- ShowCursor (FALSE);
- SetCursor (LoadCursor (NULL, IDC_ARROW));
-
- if (!bOk)
- MessageBox (hwnd, TEXT ("Error in saving the PNG image"),
- szProgName, MB_ICONEXCLAMATION | MB_OK);
- return 0;
-
- case IDM_FILE_NEXT:
-
- /* read next entry in the directory */
-
- if (SearchPngList (pPngFileList, iPngFileCount, &iPngFileIndex,
- NULL, szImgPathName))
- {
- if (strcmp (szImgPathName, "") == 0)
- return 0;
-
- /* load the image from file */
-
- if (!LoadImageFile (hwnd, szImgPathName, &pbImage,
- &cxImgSize, &cyImgSize, &cImgChannels, &bkgColor))
- return 0;
-
- /* invalidate the client area for later update */
-
- InvalidateRect (hwnd, NULL, TRUE);
-
- /* display the PNG into the DIBitmap */
-
- DisplayImage (hwnd, &pDib, &pDiData, cxWinSize, cyWinSize,
- pbImage, cxImgSize, cyImgSize, cImgChannels, bStretched);
- }
-
- return 0;
-
- case IDM_FILE_PREVIOUS:
-
- /* read previous entry in the directory */
-
- if (SearchPngList (pPngFileList, iPngFileCount, &iPngFileIndex,
- szImgPathName, NULL))
- {
-
- if (strcmp (szImgPathName, "") == 0)
- return 0;
-
- /* load the image from file */
-
- if (!LoadImageFile (hwnd, szImgPathName, &pbImage, &cxImgSize,
- &cyImgSize, &cImgChannels, &bkgColor))
- return 0;
-
- /* invalidate the client area for later update */
-
- InvalidateRect (hwnd, NULL, TRUE);
-
- /* display the PNG into the DIBitmap */
-
- DisplayImage (hwnd, &pDib, &pDiData, cxWinSize, cyWinSize,
- pbImage, cxImgSize, cyImgSize, cImgChannels, bStretched);
- }
-
- return 0;
-
- case IDM_FILE_EXIT:
-
- /* more cleanup needed... */
-
- /* free image buffer */
-
- if (pDib != NULL)
- {
- free (pDib);
- pDib = NULL;
- }
-
- /* free file-list */
-
- if (pPngFileList != NULL)
- {
- free (pPngFileList);
- pPngFileList = NULL;
- }
-
- /* let's go ... */
-
- exit (0);
-
- return 0;
-
- case IDM_OPTIONS_STRETCH:
- bStretched = !bStretched;
- if (bStretched)
- CheckMenuItem (hMenu, IDM_OPTIONS_STRETCH, MF_CHECKED);
- else
- CheckMenuItem (hMenu, IDM_OPTIONS_STRETCH, MF_UNCHECKED);
-
- /* invalidate the client area for later update */
-
- InvalidateRect (hwnd, NULL, TRUE);
-
- /* display the PNG into the DIBitmap */
-
- DisplayImage (hwnd, &pDib, &pDiData, cxWinSize, cyWinSize,
- pbImage, cxImgSize, cyImgSize, cImgChannels, bStretched);
-
- return 0;
-
- case IDM_HELP_ABOUT:
- DialogBox (hInstance, TEXT ("AboutBox"), hwnd, AboutDlgProc) ;
- return 0;
-
- } /* end switch */
-
- break;
-
- case WM_PAINT:
- hdc = BeginPaint (hwnd, &ps);
-
- if (pDib)
- SetDIBitsToDevice (hdc, 0, 0, cxWinSize, cyWinSize, 0, 0,
- 0, cyWinSize, pDiData, (BITMAPINFO *) pDib, DIB_RGB_COLORS);
-
- EndPaint (hwnd, &ps);
- return 0;
-
- case WM_DESTROY:
- if (pbmfh)
- {
- free (pbmfh);
- pbmfh = NULL;
- }
-
- PostQuitMessage (0);
- return 0;
- }
-
- return DefWindowProc (hwnd, message, wParam, lParam);
-}
-
-BOOL CALLBACK AboutDlgProc (HWND hDlg, UINT message,
- WPARAM wParam, LPARAM lParam)
-{
- switch (message)
- {
- case WM_INITDIALOG :
- ShowWindow (hDlg, SW_HIDE);
- CenterAbout (hDlg, GetWindow (hDlg, GW_OWNER));
- ShowWindow (hDlg, SW_SHOW);
- return TRUE ;
-
- case WM_COMMAND :
- switch (LOWORD (wParam))
- {
- case IDOK :
- case IDCANCEL :
- EndDialog (hDlg, 0) ;
- return TRUE ;
- }
- break ;
- }
- return FALSE ;
-}
-
-/*---------------
- * CenterAbout
- *---------------
- */
-BOOL CenterAbout (HWND hwndChild, HWND hwndParent)
-{
- RECT rChild, rParent, rWorkArea;
- int wChild, hChild, wParent, hParent;
- int xNew, yNew;
- BOOL bResult;
-
- /* Get the Height and Width of the child window */
- GetWindowRect (hwndChild, &rChild);
- wChild = rChild.right - rChild.left;
- hChild = rChild.bottom - rChild.top;
-
- /* Get the Height and Width of the parent window */
- GetWindowRect (hwndParent, &rParent);
- wParent = rParent.right - rParent.left;
- hParent = rParent.bottom - rParent.top;
-
- /* Get the limits of the 'workarea' */
- bResult = SystemParametersInfo(
- SPI_GETWORKAREA, /* system parameter to query or set */
- sizeof(RECT),
- &rWorkArea,
- 0);
- if (!bResult) {
- rWorkArea.left = rWorkArea.top = 0;
- rWorkArea.right = GetSystemMetrics(SM_CXSCREEN);
- rWorkArea.bottom = GetSystemMetrics(SM_CYSCREEN);
- }
-
- /* Calculate new X position, then adjust for workarea */
- xNew = rParent.left + ((wParent - wChild) /2);
- if (xNew < rWorkArea.left) {
- xNew = rWorkArea.left;
- } else if ((xNew+wChild) > rWorkArea.right) {
- xNew = rWorkArea.right - wChild;
- }
-
- /* Calculate new Y position, then adjust for workarea */
- yNew = rParent.top + ((hParent - hChild) /2);
- if (yNew < rWorkArea.top) {
- yNew = rWorkArea.top;
- } else if ((yNew+hChild) > rWorkArea.bottom) {
- yNew = rWorkArea.bottom - hChild;
- }
-
- /* Set it, and return */
- return SetWindowPos (hwndChild, NULL, xNew, yNew, 0, 0, SWP_NOSIZE |
- SWP_NOZORDER);
-}
-
-/*----------------
- * BuildPngList
- *----------------
- */
-BOOL BuildPngList (PTSTR pstrPathName, TCHAR **ppFileList, int *pFileCount,
- int *pFileIndex)
-{
- static TCHAR szImgPathName [MAX_PATH];
- static TCHAR szImgFileName [MAX_PATH];
- static TCHAR szImgFindName [MAX_PATH];
-
- WIN32_FIND_DATA finddata;
- HANDLE hFind;
-
- static TCHAR szTmp [MAX_PATH];
- BOOL bOk;
- int i, ii;
- int j, jj;
-
- /* free previous file-list */
-
- if (*ppFileList != NULL)
- {
- free (*ppFileList);
- *ppFileList = NULL;
- }
-
- /* extract foldername, filename and search-name */
-
- strcpy (szImgPathName, pstrPathName);
- strcpy (szImgFileName, strrchr (pstrPathName, '\\') + 1);
-
- strcpy (szImgFindName, szImgPathName);
- *(strrchr (szImgFindName, '\\') + 1) = '\0';
- strcat (szImgFindName, "*.png");
-
- /* first cycle: count number of files in directory for memory allocation */
-
- *pFileCount = 0;
-
- hFind = FindFirstFile(szImgFindName, &finddata);
- bOk = (hFind != (HANDLE) -1);
-
- while (bOk)
- {
- *pFileCount += 1;
- bOk = FindNextFile(hFind, &finddata);
- }
- FindClose(hFind);
-
- /* allocation memory for file-list */
-
- *ppFileList = (TCHAR *) malloc (*pFileCount * MAX_PATH);
-
- /* second cycle: read directory and store filenames in file-list */
-
- hFind = FindFirstFile(szImgFindName, &finddata);
- bOk = (hFind != (HANDLE) -1);
-
- i = 0;
- ii = 0;
- while (bOk)
- {
- strcpy (*ppFileList + ii, szImgPathName);
- strcpy (strrchr(*ppFileList + ii, '\\') + 1, finddata.cFileName);
-
- if (strcmp(pstrPathName, *ppFileList + ii) == 0)
- *pFileIndex = i;
-
- ii += MAX_PATH;
- i++;
-
- bOk = FindNextFile(hFind, &finddata);
- }
- FindClose(hFind);
-
- /* finally we must sort the file-list */
-
- for (i = 0; i < *pFileCount - 1; i++)
- {
- ii = i * MAX_PATH;
- for (j = i+1; j < *pFileCount; j++)
- {
- jj = j * MAX_PATH;
- if (strcmp (*ppFileList + ii, *ppFileList + jj) > 0)
- {
- strcpy (szTmp, *ppFileList + jj);
- strcpy (*ppFileList + jj, *ppFileList + ii);
- strcpy (*ppFileList + ii, szTmp);
-
- /* check if this was the current image that we moved */
-
- if (*pFileIndex == i)
- *pFileIndex = j;
- else
- if (*pFileIndex == j)
- *pFileIndex = i;
- }
- }
- }
-
- return TRUE;
-}
-
-/*----------------
- * SearchPngList
- *----------------
- */
-
-BOOL SearchPngList (
- TCHAR *pFileList, int FileCount, int *pFileIndex,
- PTSTR pstrPrevName, PTSTR pstrNextName)
-{
- if (FileCount > 0)
- {
- /* get previous entry */
-
- if (pstrPrevName != NULL)
- {
- if (*pFileIndex > 0)
- *pFileIndex -= 1;
- else
- *pFileIndex = FileCount - 1;
-
- strcpy (pstrPrevName, pFileList + (*pFileIndex * MAX_PATH));
- }
-
- /* get next entry */
-
- if (pstrNextName != NULL)
- {
- if (*pFileIndex < FileCount - 1)
- *pFileIndex += 1;
- else
- *pFileIndex = 0;
-
- strcpy (pstrNextName, pFileList + (*pFileIndex * MAX_PATH));
- }
-
- return TRUE;
- }
- else
- {
- return FALSE;
- }
-}
-
-/*-----------------
- * LoadImageFile
- *-----------------
- */
-
-BOOL LoadImageFile (HWND hwnd, PTSTR pstrPathName,
- png_byte **ppbImage, int *pxImgSize, int *pyImgSize,
- int *piChannels, png_color *pBkgColor)
-{
- static TCHAR szTmp [MAX_PATH];
-
- /* if there's an existing PNG, free the memory */
-
- if (*ppbImage)
- {
- free (*ppbImage);
- *ppbImage = NULL;
- }
-
- /* Load the entire PNG into memory */
-
- SetCursor (LoadCursor (NULL, IDC_WAIT));
- ShowCursor (TRUE);
-
- PngLoadImage (pstrPathName, ppbImage, pxImgSize, pyImgSize, piChannels,
- pBkgColor);
-
- ShowCursor (FALSE);
- SetCursor (LoadCursor (NULL, IDC_ARROW));
-
- if (*ppbImage != NULL)
- {
- sprintf (szTmp, "VisualPng - %s", strrchr(pstrPathName, '\\') + 1);
- SetWindowText (hwnd, szTmp);
- }
- else
- {
- MessageBox (hwnd, TEXT ("Error in loading the PNG image"),
- szProgName, MB_ICONEXCLAMATION | MB_OK);
- return FALSE;
- }
-
- return TRUE;
-}
-
-/*----------------
- * DisplayImage
- *----------------
- */
-BOOL DisplayImage (HWND hwnd, BYTE **ppDib,
- BYTE **ppDiData, int cxWinSize, int cyWinSize,
- BYTE *pbImage, int cxImgSize, int cyImgSize, int cImgChannels,
- BOOL bStretched)
-{
- BYTE *pDib = *ppDib;
- BYTE *pDiData = *ppDiData;
- /* BITMAPFILEHEADER *pbmfh; */
- BITMAPINFOHEADER *pbmih;
- WORD wDIRowBytes;
- png_color bkgBlack = {0, 0, 0};
- png_color bkgGray = {127, 127, 127};
- png_color bkgWhite = {255, 255, 255};
-
- /* allocate memory for the Device Independent bitmap */
-
- wDIRowBytes = (WORD) ((3 * cxWinSize + 3L) >> 2) << 2;
-
- if (pDib)
- {
- free (pDib);
- pDib = NULL;
- }
-
- if (cyWinSize > ((size_t)(-1))/wDIRowBytes) {
- {
- MessageBox (hwnd, TEXT ("Visual PNG: image is too big");
- }
- if (!(pDib = (BYTE *) malloc (sizeof(BITMAPINFOHEADER) +
- wDIRowBytes * cyWinSize)))
- {
- MessageBox (hwnd, TEXT ("Error in displaying the PNG image"),
- szProgName, MB_ICONEXCLAMATION | MB_OK);
- *ppDib = pDib = NULL;
- return FALSE;
- }
- *ppDib = pDib;
- memset (pDib, 0, sizeof(BITMAPINFOHEADER));
-
- /* initialize the dib-structure */
-
- pbmih = (BITMAPINFOHEADER *) pDib;
- pbmih->biSize = sizeof(BITMAPINFOHEADER);
- pbmih->biWidth = cxWinSize;
- pbmih->biHeight = -((long) cyWinSize);
- pbmih->biPlanes = 1;
- pbmih->biBitCount = 24;
- pbmih->biCompression = 0;
- pDiData = pDib + sizeof(BITMAPINFOHEADER);
- *ppDiData = pDiData;
-
- /* first fill bitmap with gray and image border */
-
- InitBitmap (pDiData, cxWinSize, cyWinSize);
-
- /* then fill bitmap with image */
-
- if (pbImage)
- {
- FillBitmap (
- pDiData, cxWinSize, cyWinSize,
- pbImage, cxImgSize, cyImgSize, cImgChannels,
- bStretched);
- }
-
- return TRUE;
-}
-
-/*--------------
- * InitBitmap
- *--------------
- */
-BOOL InitBitmap (BYTE *pDiData, int cxWinSize, int cyWinSize)
-{
- BYTE *dst;
- int x, y, col;
-
- /* initialize the background with gray */
-
- dst = pDiData;
- for (y = 0; y < cyWinSize; y++)
- {
- col = 0;
- for (x = 0; x < cxWinSize; x++)
- {
- /* fill with GRAY */
- *dst++ = 127;
- *dst++ = 127;
- *dst++ = 127;
- col += 3;
- }
- /* rows start on 4 byte boundaries */
- while ((col % 4) != 0)
- {
- dst++;
- col++;
- }
- }
-
- return TRUE;
-}
-
-/*--------------
- * FillBitmap
- *--------------
- */
-BOOL FillBitmap (
- BYTE *pDiData, int cxWinSize, int cyWinSize,
- BYTE *pbImage, int cxImgSize, int cyImgSize, int cImgChannels,
- BOOL bStretched)
-{
- BYTE *pStretchedImage;
- BYTE *pImg;
- BYTE *src, *dst;
- BYTE r, g, b, a;
- const int cDIChannels = 3;
- WORD wImgRowBytes;
- WORD wDIRowBytes;
- int cxNewSize, cyNewSize;
- int cxImgPos, cyImgPos;
- int xImg, yImg;
- int xWin, yWin;
- int xOld, yOld;
- int xNew, yNew;
-
- if (bStretched)
- {
- cxNewSize = cxWinSize - 2 * MARGIN;
- cyNewSize = cyWinSize - 2 * MARGIN;
-
- /* stretch the image to it's window determined size */
-
- /* the following two are mathematically the same, but the first
- * has side-effects because of rounding
- */
-/* if ((cyNewSize / cxNewSize) > (cyImgSize / cxImgSize)) */
- if ((cyNewSize * cxImgSize) > (cyImgSize * cxNewSize))
- {
- cyNewSize = cxNewSize * cyImgSize / cxImgSize;
- cxImgPos = MARGIN;
- cyImgPos = (cyWinSize - cyNewSize) / 2;
- }
- else
- {
- cxNewSize = cyNewSize * cxImgSize / cyImgSize;
- cyImgPos = MARGIN;
- cxImgPos = (cxWinSize - cxNewSize) / 2;
- }
-
- if (cyNewSize > ((size_t)(-1))/(cImgChannels * cxNewSize)) {
- {
- MessageBox (hwnd, TEXT ("Visual PNG: stretched image is too big");
- }
- pStretchedImage = malloc (cImgChannels * cxNewSize * cyNewSize);
- pImg = pStretchedImage;
-
- for (yNew = 0; yNew < cyNewSize; yNew++)
- {
- yOld = yNew * cyImgSize / cyNewSize;
- for (xNew = 0; xNew < cxNewSize; xNew++)
- {
- xOld = xNew * cxImgSize / cxNewSize;
-
- r = *(pbImage + cImgChannels * ((yOld * cxImgSize) + xOld) + 0);
- g = *(pbImage + cImgChannels * ((yOld * cxImgSize) + xOld) + 1);
- b = *(pbImage + cImgChannels * ((yOld * cxImgSize) + xOld) + 2);
- *pImg++ = r;
- *pImg++ = g;
- *pImg++ = b;
- if (cImgChannels == 4)
- {
- a = *(pbImage + cImgChannels * ((yOld * cxImgSize) + xOld)
- + 3);
- *pImg++ = a;
- }
- }
- }
-
- /* calculate row-bytes */
-
- wImgRowBytes = cImgChannels * cxNewSize;
- wDIRowBytes = (WORD) ((cDIChannels * cxWinSize + 3L) >> 2) << 2;
-
- /* copy image to screen */
-
- for (yImg = 0, yWin = cyImgPos; yImg < cyNewSize; yImg++, yWin++)
- {
- if (yWin >= cyWinSize - cyImgPos)
- break;
- src = pStretchedImage + yImg * wImgRowBytes;
- dst = pDiData + yWin * wDIRowBytes + cxImgPos * cDIChannels;
-
- for (xImg = 0, xWin = cxImgPos; xImg < cxNewSize; xImg++, xWin++)
- {
- if (xWin >= cxWinSize - cxImgPos)
- break;
- r = *src++;
- g = *src++;
- b = *src++;
- *dst++ = b; /* note the reverse order */
- *dst++ = g;
- *dst++ = r;
- if (cImgChannels == 4)
- {
- a = *src++;
- }
- }
- }
-
- /* free memory */
-
- if (pStretchedImage != NULL)
- {
- free (pStretchedImage);
- pStretchedImage = NULL;
- }
-
- }
-
- /* process the image not-stretched */
-
- else
- {
- /* calculate the central position */
-
- cxImgPos = (cxWinSize - cxImgSize) / 2;
- cyImgPos = (cyWinSize - cyImgSize) / 2;
-
- /* check for image larger than window */
-
- if (cxImgPos < MARGIN)
- cxImgPos = MARGIN;
- if (cyImgPos < MARGIN)
- cyImgPos = MARGIN;
-
- /* calculate both row-bytes */
-
- wImgRowBytes = cImgChannels * cxImgSize;
- wDIRowBytes = (WORD) ((cDIChannels * cxWinSize + 3L) >> 2) << 2;
-
- /* copy image to screen */
-
- for (yImg = 0, yWin = cyImgPos; yImg < cyImgSize; yImg++, yWin++)
- {
- if (yWin >= cyWinSize - MARGIN)
- break;
- src = pbImage + yImg * wImgRowBytes;
- dst = pDiData + yWin * wDIRowBytes + cxImgPos * cDIChannels;
-
- for (xImg = 0, xWin = cxImgPos; xImg < cxImgSize; xImg++, xWin++)
- {
- if (xWin >= cxWinSize - MARGIN)
- break;
- r = *src++;
- g = *src++;
- b = *src++;
- *dst++ = b; /* note the reverse order */
- *dst++ = g;
- *dst++ = r;
- if (cImgChannels == 4)
- {
- a = *src++;
- }
- }
- }
- }
-
- return TRUE;
-}
-
-/*-----------------
- * end of source
- *-----------------
- */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.dsp b/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.dsp
deleted file mode 100644
index 741ef6c..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.dsp
+++ /dev/null
@@ -1,147 +0,0 @@
-# Microsoft Developer Studio Project File - Name="VisualPng" - Package Owner=<4>
-# Microsoft Developer Studio Generated Build File, Format Version 6.00
-# ** DO NOT EDIT **
-
-# TARGTYPE "Win32 (x86) Application" 0x0101
-
-CFG=VisualPng - Win32 Debug
-!MESSAGE This is not a valid makefile. To build this project using NMAKE,
-!MESSAGE use the Export Makefile command and run
-!MESSAGE
-!MESSAGE NMAKE /f "VisualPng.mak".
-!MESSAGE
-!MESSAGE You can specify a configuration when running NMAKE
-!MESSAGE by defining the macro CFG on the command line. For example:
-!MESSAGE
-!MESSAGE NMAKE /f "VisualPng.mak" CFG="VisualPng - Win32 Debug"
-!MESSAGE
-!MESSAGE Possible choices for configuration are:
-!MESSAGE
-!MESSAGE "VisualPng - Win32 Release" (based on "Win32 (x86) Application")
-!MESSAGE "VisualPng - Win32 Debug" (based on "Win32 (x86) Application")
-!MESSAGE
-
-# Begin Project
-# PROP AllowPerConfigDependencies 0
-# PROP Scc_ProjName ""
-# PROP Scc_LocalPath ""
-CPP=cl.exe
-MTL=midl.exe
-RSC=rc.exe
-
-!IF "$(CFG)" == "VisualPng - Win32 Release"
-
-# PROP BASE Use_MFC 0
-# PROP BASE Use_Debug_Libraries 0
-# PROP BASE Output_Dir "Release"
-# PROP BASE Intermediate_Dir "Release"
-# PROP BASE Ignore_Export_Lib 0
-# PROP BASE Target_Dir ""
-# PROP Use_MFC 0
-# PROP Use_Debug_Libraries 0
-# PROP Output_Dir "Release"
-# PROP Intermediate_Dir "Release"
-# PROP Ignore_Export_Lib 0
-# PROP Target_Dir ""
-# ADD BASE CPP /nologo /W3 /O2 /I "..\.." /I "..\..\..\zlib" /D "WIN32" /D "NDEBUG" /D "PNG_NO_STDIO" /FD /c
-# SUBTRACT BASE CPP /YX
-# ADD CPP /nologo /MD /W3 /O2 /I "..\.." /I "..\..\..\zlib" /D "WIN32" /D "NDEBUG" /D "PNG_NO_STDIO" /FD /c
-# SUBTRACT CPP /YX
-# ADD BASE MTL /nologo /D "NDEBUG" /mktyplib203 /win32
-# ADD MTL /nologo /D "NDEBUG" /mktyplib203 /win32
-# ADD BASE RSC /l 0x409 /d "NDEBUG"
-# ADD RSC /l 0x409 /d "NDEBUG"
-BSC32=bscmake.exe
-# ADD BASE BSC32 /nologo
-# ADD BSC32 /nologo
-LINK32=link.exe
-# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386
-# ADD LINK32 ..\..\projects\visualc6\Win32_LIB_Release\libpng.lib ..\..\..\zlib\projects\visualc6\Win32_LIB_Release\zlib.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386
-# Begin Special Build Tool
-OutDir=.\Release
-SOURCE="$(InputPath)"
-PostBuild_Cmds=$(outdir)\VisualPng.exe ..\..\contrib\pngsuite\basn6a16.png
-# End Special Build Tool
-
-!ELSEIF "$(CFG)" == "VisualPng - Win32 Debug"
-
-# PROP BASE Use_MFC 0
-# PROP BASE Use_Debug_Libraries 1
-# PROP BASE Output_Dir "Debug"
-# PROP BASE Intermediate_Dir "Debug"
-# PROP BASE Ignore_Export_Lib 0
-# PROP BASE Target_Dir ""
-# PROP Use_MFC 0
-# PROP Use_Debug_Libraries 1
-# PROP Output_Dir "Debug"
-# PROP Intermediate_Dir "Debug"
-# PROP Ignore_Export_Lib 0
-# PROP Target_Dir ""
-# ADD BASE CPP /nologo /W3 /Gm /ZI /Od /I "..\.." /I "..\..\..\zlib" /D "WIN32" /D "_DEBUG" /D "PNG_NO_STDIO" /FD /GZ /c
-# SUBTRACT BASE CPP /YX
-# ADD CPP /nologo /MDd /W3 /Gm /ZI /Od /I "..\.." /I "..\..\..\zlib" /D "WIN32" /D "_DEBUG" /D "PNG_NO_STDIO" /FD /GZ /c
-# SUBTRACT CPP /YX
-# ADD BASE MTL /nologo /D "_DEBUG" /mktyplib203 /win32
-# ADD MTL /nologo /D "_DEBUG" /mktyplib203 /win32
-# ADD BASE RSC /l 0x409 /d "_DEBUG"
-# ADD RSC /l 0x409 /d "_DEBUG"
-BSC32=bscmake.exe
-# ADD BASE BSC32 /nologo
-# ADD BSC32 /nologo
-LINK32=link.exe
-# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /pdbtype:sept
-# ADD LINK32 ..\..\projects\visualc6\Win32_LIB_Release\libpng.lib ..\..\..\zlib\projects\visualc6\Win32_LIB_Release\zlib.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"msvcrt.lib" /pdbtype:sept
-# Begin Special Build Tool
-OutDir=.\Debug
-SOURCE="$(InputPath)"
-PostBuild_Cmds=$(outdir)\VisualPng.exe ..\..\contrib\pngsuite\basn6a16.png
-# End Special Build Tool
-
-!ENDIF
-
-# Begin Target
-
-# Name "VisualPng - Win32 Release"
-# Name "VisualPng - Win32 Debug"
-# Begin Group "Source Files"
-
-# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
-# Begin Source File
-
-SOURCE=.\PngFile.c
-# End Source File
-# Begin Source File
-
-SOURCE=.\VisualPng.c
-# End Source File
-# End Group
-# Begin Group "Header Files"
-
-# PROP Default_Filter "h;hpp;hxx;hm;inl"
-# Begin Source File
-
-SOURCE=.\cexcept.h
-# End Source File
-# Begin Source File
-
-SOURCE=.\PngFile.h
-# End Source File
-# Begin Source File
-
-SOURCE=.\resource.h
-# End Source File
-# End Group
-# Begin Group "Resource Files"
-
-# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
-# Begin Source File
-
-SOURCE=.\VisualPng.ico
-# End Source File
-# Begin Source File
-
-SOURCE=.\VisualPng.rc
-# End Source File
-# End Group
-# End Target
-# End Project
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.dsw b/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.dsw
deleted file mode 100644
index a30e1cc..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.dsw
+++ /dev/null
@@ -1,29 +0,0 @@
-Microsoft Developer Studio Workspace File, Format Version 6.00
-# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
-
-###############################################################################
-
-Project: "VisualPng"=.\VisualPng.dsp - Package Owner=<4>
-
-Package=<5>
-{{{
-}}}
-
-Package=<4>
-{{{
-}}}
-
-###############################################################################
-
-Global:
-
-Package=<5>
-{{{
-}}}
-
-Package=<3>
-{{{
-}}}
-
-###############################################################################
-
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.ico b/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.ico
deleted file mode 100644
index 68aa371..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.ico
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.png b/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.png
deleted file mode 100644
index c6aa80a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.png
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.rc b/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.rc
deleted file mode 100644
index 6e0623a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/VisualPng.rc
+++ /dev/null
@@ -1,152 +0,0 @@
-//Microsoft Developer Studio generated resource script.
-//
-#include "resource.h"
-
-#define APSTUDIO_READONLY_SYMBOLS
-/////////////////////////////////////////////////////////////////////////////
-//
-// Generated from the TEXTINCLUDE 2 resource.
-//
-#include "afxres.h"
-
-/////////////////////////////////////////////////////////////////////////////
-#undef APSTUDIO_READONLY_SYMBOLS
-
-/////////////////////////////////////////////////////////////////////////////
-// English (U.S.) resources
-
-#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
-#ifdef _WIN32
-LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
-#pragma code_page(1252)
-#endif //_WIN32
-
-#ifdef APSTUDIO_INVOKED
-/////////////////////////////////////////////////////////////////////////////
-//
-// TEXTINCLUDE
-//
-
-1 TEXTINCLUDE DISCARDABLE
-BEGIN
- "resource.h\0"
-END
-
-2 TEXTINCLUDE DISCARDABLE
-BEGIN
- "#include ""afxres.h""\r\n"
- "\0"
-END
-
-3 TEXTINCLUDE DISCARDABLE
-BEGIN
- "\r\n"
- "\0"
-END
-
-#endif // APSTUDIO_INVOKED
-
-
-/////////////////////////////////////////////////////////////////////////////
-//
-// Menu
-//
-
-VISUALPNG MENU DISCARDABLE
-BEGIN
- POPUP "&File"
- BEGIN
- MENUITEM "&Open Image...\tCtrl+O", IDM_FILE_OPEN
- MENUITEM "Save &As...", IDM_FILE_SAVE
- MENUITEM SEPARATOR
- MENUITEM "&Next Image\tCtrl+N", IDM_FILE_NEXT
- MENUITEM "Pre&vious Image\tCtrl+V", IDM_FILE_PREVIOUS
- MENUITEM SEPARATOR
- MENUITEM "E&xit\tAlt+X", IDM_FILE_EXIT
- END
- POPUP "&Options"
- BEGIN
- MENUITEM "&Stretch", IDM_OPTIONS_STRETCH, CHECKED
- END
- POPUP "&Help"
- BEGIN
- MENUITEM "&About", IDM_HELP_ABOUT
- END
-END
-
-
-/////////////////////////////////////////////////////////////////////////////
-//
-// Accelerator
-//
-
-VISUALPNG ACCELERATORS DISCARDABLE
-BEGIN
- "N", IDM_FILE_NEXT, VIRTKEY, CONTROL, NOINVERT
- "O", IDM_FILE_OPEN, VIRTKEY, CONTROL, NOINVERT
- "P", IDM_FILE_PREVIOUS, VIRTKEY, CONTROL, NOINVERT
- "V", IDM_FILE_PREVIOUS, VIRTKEY, CONTROL, NOINVERT
- "X", IDM_FILE_EXIT, VIRTKEY, ALT, NOINVERT
-END
-
-
-/////////////////////////////////////////////////////////////////////////////
-//
-// Icon
-//
-
-// Icon with lowest ID value placed first to ensure application icon
-// remains consistent on all systems.
-VISUALPNG ICON DISCARDABLE "VisualPng.ico"
-
-/////////////////////////////////////////////////////////////////////////////
-//
-// Dialog
-//
-
-ABOUTBOX DIALOG DISCARDABLE 0, 0, 186, 94
-STYLE DS_MODALFRAME | WS_POPUP
-FONT 8, "MS Sans Serif"
-BEGIN
- DEFPUSHBUTTON "OK",IDOK,68,67,50,14
- CTEXT "VisualPng 1.0 - June 2000",IDC_STATIC,49,14,88,8
- LTEXT "a PNG image viewer",IDC_STATIC,60,30,66,8
- LTEXT "(c) Willem van Schaik, 2000",IDC_STATIC,48,52,90,8
- LTEXT "to demonstrate the use of libpng in Visual C",
- IDC_STATIC,25,38,136,8
-END
-
-
-/////////////////////////////////////////////////////////////////////////////
-//
-// DESIGNINFO
-//
-
-#ifdef APSTUDIO_INVOKED
-GUIDELINES DESIGNINFO DISCARDABLE
-BEGIN
- "ABOUTBOX", DIALOG
- BEGIN
- LEFTMARGIN, 7
- RIGHTMARGIN, 179
- TOPMARGIN, 7
- BOTTOMMARGIN, 87
- END
-END
-#endif // APSTUDIO_INVOKED
-
-#endif // English (U.S.) resources
-/////////////////////////////////////////////////////////////////////////////
-
-
-
-#ifndef APSTUDIO_INVOKED
-/////////////////////////////////////////////////////////////////////////////
-//
-// Generated from the TEXTINCLUDE 3 resource.
-//
-
-
-/////////////////////////////////////////////////////////////////////////////
-#endif // not APSTUDIO_INVOKED
-
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/cexcept.h b/3rdparty/libpng/libpng-1.6.37/contrib/visupng/cexcept.h
deleted file mode 100644
index 5f45d76..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/cexcept.h
+++ /dev/null
@@ -1,248 +0,0 @@
-/*===
-cexcept.h 2.0.1 (2008-Jul-19-Sat)
-http://www.nicemice.net/cexcept/
-Adam M. Costello
-http://www.nicemice.net/amc/
-
-An interface for exception-handling in ANSI C (C89 and subsequent ISO
-standards), developed jointly with Cosmin Truta.
-
- Copyright (c) 2000-2008 Adam M. Costello and Cosmin Truta.
- This software may be modified only if its author and version
- information is updated accurately, and may be redistributed
- only if accompanied by this unaltered notice. Subject to those
- restrictions, permission is granted to anyone to do anything
- with this software. The copyright holders make no guarantees
- regarding this software, and are not responsible for any damage
- resulting from its use.
-
-The cexcept interface is not compatible with and cannot interact
-with system exceptions (like division by zero or memory segmentation
-violation), compiler-generated exceptions (like C++ exceptions), or
-other exception-handling interfaces.
-
-When using this interface across multiple .c files, do not include
-this header file directly. Instead, create a wrapper header file that
-includes this header file and then invokes the define_exception_type
-macro (see below). The .c files should then include that header file.
-
-The interface consists of one type, one well-known name, and six macros.
-
-
-define_exception_type(type_name);
-
- This macro is used like an external declaration. It specifies
- the type of object that gets copied from the exception thrower to
- the exception catcher. The type_name can be any type that can be
- assigned to, that is, a non-constant arithmetic type, struct, union,
- or pointer. Examples:
-
- define_exception_type(int);
-
- enum exception { out_of_memory, bad_arguments, disk_full };
- define_exception_type(enum exception);
-
- struct exception { int code; const char *msg; };
- define_exception_type(struct exception);
-
- Because throwing an exception causes the object to be copied (not
- just once, but twice), programmers may wish to consider size when
- choosing the exception type.
-
-
-struct exception_context;
-
- This type may be used after the define_exception_type() macro has
- been invoked. A struct exception_context must be known to both
- the thrower and the catcher. It is expected that there be one
- context for each thread that uses exceptions. It would certainly
- be dangerous for multiple threads to access the same context.
- One thread can use multiple contexts, but that is likely to be
- confusing and not typically useful. The application can allocate
- this structure in any way it pleases--automatic, static, or dynamic.
- The application programmer should pretend not to know the structure
- members, which are subject to change.
-
-
-struct exception_context *the_exception_context;
-
- The Try/Catch and Throw statements (described below) implicitly
- refer to a context, using the name the_exception_context. It is
- the application's responsibility to make sure that this name yields
- the address of a mutable (non-constant) struct exception_context
- wherever those statements are used. Subject to that constraint, the
- application may declare a variable of this name anywhere it likes
- (inside a function, in a parameter list, or externally), and may
- use whatever storage class specifiers (static, extern, etc) or type
- qualifiers (const, volatile, etc) it likes. Examples:
-
- static struct exception_context
- * const the_exception_context = &foo;
-
- { struct exception_context *the_exception_context = bar; ... }
-
- int blah(struct exception_context *the_exception_context, ...);
-
- extern struct exception_context the_exception_context[1];
-
- The last example illustrates a trick that avoids creating a pointer
- object separate from the structure object.
-
- The name could even be a macro, for example:
-
- struct exception_context ec_array[numthreads];
- #define the_exception_context (ec_array + thread_id)
-
- Be aware that the_exception_context is used several times by the
- Try/Catch/Throw macros, so it shouldn't be expensive or have side
- effects. The expansion must be a drop-in replacement for an
- identifier, so it's safest to put parentheses around it.
-
-
-void init_exception_context(struct exception_context *ec);
-
- For context structures allocated statically (by an external
- definition or using the "static" keyword), the implicit
- initialization to all zeros is sufficient, but contexts allocated
- by other means must be initialized using this macro before they
- are used by a Try/Catch statement. It does no harm to initialize
- a context more than once (by using this macro on a statically
- allocated context, or using this macro twice on the same context),
- but a context must not be re-initialized after it has been used by a
- Try/Catch statement.
-
-
-Try statement
-Catch (expression) statement
-
- The Try/Catch/Throw macros are capitalized in order to avoid
- confusion with the C++ keywords, which have subtly different
- semantics.
-
- A Try/Catch statement has a syntax similar to an if/else statement,
- except that the parenthesized expression goes after the second
- keyword rather than the first. As with if/else, there are two
- clauses, each of which may be a simple statement ending with a
- semicolon or a brace-enclosed compound statement. But whereas
- the else clause is optional, the Catch clause is required. The
- expression must be a modifiable lvalue (something capable of being
- assigned to) of the same type (disregarding type qualifiers) that
- was passed to define_exception_type().
-
- If a Throw that uses the same exception context as the Try/Catch is
- executed within the Try clause (typically within a function called
- by the Try clause), and the exception is not caught by a nested
- Try/Catch statement, then a copy of the exception will be assigned
- to the expression, and control will jump to the Catch clause. If no
- such Throw is executed, then the assignment is not performed, and
- the Catch clause is not executed.
-
- The expression is not evaluated unless and until the exception is
- caught, which is significant if it has side effects, for example:
-
- Try foo();
- Catch (p[++i].e) { ... }
-
- IMPORTANT: Jumping into or out of a Try clause (for example via
- return, break, continue, goto, longjmp) is forbidden--the compiler
- will not complain, but bad things will happen at run-time. Jumping
- into or out of a Catch clause is okay, and so is jumping around
- inside a Try clause. In many cases where one is tempted to return
- from a Try clause, it will suffice to use Throw, and then return
- from the Catch clause. Another option is to set a flag variable and
- use goto to jump to the end of the Try clause, then check the flag
- after the Try/Catch statement.
-
- IMPORTANT: The values of any non-volatile automatic variables
- changed within the Try clause are undefined after an exception is
- caught. Therefore, variables modified inside the Try block whose
- values are needed later outside the Try block must either use static
- storage or be declared with the "volatile" type qualifier.
-
-
-Throw expression;
-
- A Throw statement is very much like a return statement, except that
- the expression is required. Whereas return jumps back to the place
- where the current function was called, Throw jumps back to the Catch
- clause of the innermost enclosing Try clause. The expression must
- be compatible with the type passed to define_exception_type(). The
- exception must be caught, otherwise the program may crash.
-
- Slight limitation: If the expression is a comma-expression, it must
- be enclosed in parentheses.
-
-
-Try statement
-Catch_anonymous statement
-
- When the value of the exception is not needed, a Try/Catch statement
- can use Catch_anonymous instead of Catch (expression).
-
-
-Everything below this point is for the benefit of the compiler. The
-application programmer should pretend not to know any of it, because it
-is subject to change.
-
-===*/
-
-
-#ifndef CEXCEPT_H
-#define CEXCEPT_H
-
-
-#include <setjmp.h>
-
-#define define_exception_type(etype) \
-struct exception_context { \
- jmp_buf *penv; \
- int caught; \
- volatile struct { etype etmp; } v; \
-}
-
-/* etmp must be volatile because the application might use automatic */
-/* storage for the_exception_context, and etmp is modified between */
-/* the calls to setjmp() and longjmp(). A wrapper struct is used to */
-/* avoid warnings about a duplicate volatile qualifier in case etype */
-/* already includes it. */
-
-#define init_exception_context(ec) ((void)((ec)->penv = 0))
-
-#define Try \
- { \
- jmp_buf *exception__prev, exception__env; \
- exception__prev = the_exception_context->penv; \
- the_exception_context->penv = &exception__env; \
- if (setjmp(exception__env) == 0) { \
- do
-
-#define exception__catch(action) \
- while (the_exception_context->caught = 0, \
- the_exception_context->caught); \
- } \
- else { \
- the_exception_context->caught = 1; \
- } \
- the_exception_context->penv = exception__prev; \
- } \
- if (!the_exception_context->caught || action) { } \
- else
-
-#define Catch(e) exception__catch(((e) = the_exception_context->v.etmp, 0))
-#define Catch_anonymous exception__catch(0)
-
-/* Try ends with do, and Catch begins with while(0) and ends with */
-/* else, to ensure that Try/Catch syntax is similar to if/else */
-/* syntax. */
-/* */
-/* The 0 in while(0) is expressed as x=0,x in order to appease */
-/* compilers that warn about constant expressions inside while(). */
-/* Most compilers should still recognize that the condition is always */
-/* false and avoid generating code for it. */
-
-#define Throw \
- for (;; longjmp(*the_exception_context->penv, 1)) \
- the_exception_context->v.etmp =
-
-
-#endif /* CEXCEPT_H */
diff --git a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/resource.h b/3rdparty/libpng/libpng-1.6.37/contrib/visupng/resource.h
deleted file mode 100644
index b62176d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/contrib/visupng/resource.h
+++ /dev/null
@@ -1,23 +0,0 @@
-//{{NO_DEPENDENCIES}}
-// Microsoft Developer Studio generated include file.
-// Used by VisualPng.rc
-//
-#define IDM_FILE_OPEN 40001
-#define IDM_FILE_SAVE 40002
-#define IDM_FILE_NEXT 40003
-#define IDM_FILE_PREVIOUS 40004
-#define IDM_FILE_EXIT 40005
-#define IDM_OPTIONS_BACKGROUND 40006
-#define IDM_OPTIONS_STRETCH 40007
-#define IDM_HELP_ABOUT 40008
-
-// Next default values for new objects
-//
-#ifdef APSTUDIO_INVOKED
-#ifndef APSTUDIO_READONLY_SYMBOLS
-#define _APS_NEXT_RESOURCE_VALUE 113
-#define _APS_NEXT_COMMAND_VALUE 40009
-#define _APS_NEXT_CONTROL_VALUE 1001
-#define _APS_NEXT_SYMED_VALUE 101
-#endif
-#endif
diff --git a/3rdparty/libpng/libpng-1.6.37/depcomp b/3rdparty/libpng/libpng-1.6.37/depcomp
deleted file mode 100755
index 65cbf70..0000000
--- a/3rdparty/libpng/libpng-1.6.37/depcomp
+++ /dev/null
@@ -1,791 +0,0 @@
-#! /bin/sh
-# depcomp - compile a program generating dependencies as side-effects
-
-scriptversion=2018-03-07.03; # UTC
-
-# Copyright (C) 1999-2018 Free Software Foundation, Inc.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <https://www.gnu.org/licenses/>.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
-
-case $1 in
- '')
- echo "$0: No command. Try '$0 --help' for more information." 1>&2
- exit 1;
- ;;
- -h | --h*)
- cat <<\EOF
-Usage: depcomp [--help] [--version] PROGRAM [ARGS]
-
-Run PROGRAMS ARGS to compile a file, generating dependencies
-as side-effects.
-
-Environment variables:
- depmode Dependency tracking mode.
- source Source file read by 'PROGRAMS ARGS'.
- object Object file output by 'PROGRAMS ARGS'.
- DEPDIR directory where to store dependencies.
- depfile Dependency file to output.
- tmpdepfile Temporary file to use when outputting dependencies.
- libtool Whether libtool is used (yes/no).
-
-Report bugs to <bug-automake@gnu.org>.
-EOF
- exit $?
- ;;
- -v | --v*)
- echo "depcomp $scriptversion"
- exit $?
- ;;
-esac
-
-# Get the directory component of the given path, and save it in the
-# global variables '$dir'. Note that this directory component will
-# be either empty or ending with a '/' character. This is deliberate.
-set_dir_from ()
-{
- case $1 in
- */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
- *) dir=;;
- esac
-}
-
-# Get the suffix-stripped basename of the given path, and save it the
-# global variable '$base'.
-set_base_from ()
-{
- base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
-}
-
-# If no dependency file was actually created by the compiler invocation,
-# we still have to create a dummy depfile, to avoid errors with the
-# Makefile "include basename.Plo" scheme.
-make_dummy_depfile ()
-{
- echo "#dummy" > "$depfile"
-}
-
-# Factor out some common post-processing of the generated depfile.
-# Requires the auxiliary global variable '$tmpdepfile' to be set.
-aix_post_process_depfile ()
-{
- # If the compiler actually managed to produce a dependency file,
- # post-process it.
- if test -f "$tmpdepfile"; then
- # Each line is of the form 'foo.o: dependency.h'.
- # Do two passes, one to just change these to
- # $object: dependency.h
- # and one to simply output
- # dependency.h:
- # which is needed to avoid the deleted-header problem.
- { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
- sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
- } > "$depfile"
- rm -f "$tmpdepfile"
- else
- make_dummy_depfile
- fi
-}
-
-# A tabulation character.
-tab=' '
-# A newline character.
-nl='
-'
-# Character ranges might be problematic outside the C locale.
-# These definitions help.
-upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
-lower=abcdefghijklmnopqrstuvwxyz
-digits=0123456789
-alpha=${upper}${lower}
-
-if test -z "$depmode" || test -z "$source" || test -z "$object"; then
- echo "depcomp: Variables source, object and depmode must be set" 1>&2
- exit 1
-fi
-
-# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
-depfile=${depfile-`echo "$object" |
- sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
-tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
-
-rm -f "$tmpdepfile"
-
-# Avoid interferences from the environment.
-gccflag= dashmflag=
-
-# Some modes work just like other modes, but use different flags. We
-# parameterize here, but still list the modes in the big case below,
-# to make depend.m4 easier to write. Note that we *cannot* use a case
-# here, because this file can only contain one case statement.
-if test "$depmode" = hp; then
- # HP compiler uses -M and no extra arg.
- gccflag=-M
- depmode=gcc
-fi
-
-if test "$depmode" = dashXmstdout; then
- # This is just like dashmstdout with a different argument.
- dashmflag=-xM
- depmode=dashmstdout
-fi
-
-cygpath_u="cygpath -u -f -"
-if test "$depmode" = msvcmsys; then
- # This is just like msvisualcpp but w/o cygpath translation.
- # Just convert the backslash-escaped backslashes to single forward
- # slashes to satisfy depend.m4
- cygpath_u='sed s,\\\\,/,g'
- depmode=msvisualcpp
-fi
-
-if test "$depmode" = msvc7msys; then
- # This is just like msvc7 but w/o cygpath translation.
- # Just convert the backslash-escaped backslashes to single forward
- # slashes to satisfy depend.m4
- cygpath_u='sed s,\\\\,/,g'
- depmode=msvc7
-fi
-
-if test "$depmode" = xlc; then
- # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
- gccflag=-qmakedep=gcc,-MF
- depmode=gcc
-fi
-
-case "$depmode" in
-gcc3)
-## gcc 3 implements dependency tracking that does exactly what
-## we want. Yay! Note: for some reason libtool 1.4 doesn't like
-## it if -MD -MP comes after the -MF stuff. Hmm.
-## Unfortunately, FreeBSD c89 acceptance of flags depends upon
-## the command line argument order; so add the flags where they
-## appear in depend2.am. Note that the slowdown incurred here
-## affects only configure: in makefiles, %FASTDEP% shortcuts this.
- for arg
- do
- case $arg in
- -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
- *) set fnord "$@" "$arg" ;;
- esac
- shift # fnord
- shift # $arg
- done
- "$@"
- stat=$?
- if test $stat -ne 0; then
- rm -f "$tmpdepfile"
- exit $stat
- fi
- mv "$tmpdepfile" "$depfile"
- ;;
-
-gcc)
-## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
-## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
-## (see the conditional assignment to $gccflag above).
-## There are various ways to get dependency output from gcc. Here's
-## why we pick this rather obscure method:
-## - Don't want to use -MD because we'd like the dependencies to end
-## up in a subdir. Having to rename by hand is ugly.
-## (We might end up doing this anyway to support other compilers.)
-## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
-## -MM, not -M (despite what the docs say). Also, it might not be
-## supported by the other compilers which use the 'gcc' depmode.
-## - Using -M directly means running the compiler twice (even worse
-## than renaming).
- if test -z "$gccflag"; then
- gccflag=-MD,
- fi
- "$@" -Wp,"$gccflag$tmpdepfile"
- stat=$?
- if test $stat -ne 0; then
- rm -f "$tmpdepfile"
- exit $stat
- fi
- rm -f "$depfile"
- echo "$object : \\" > "$depfile"
- # The second -e expression handles DOS-style file names with drive
- # letters.
- sed -e 's/^[^:]*: / /' \
- -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
-## This next piece of magic avoids the "deleted header file" problem.
-## The problem is that when a header file which appears in a .P file
-## is deleted, the dependency causes make to die (because there is
-## typically no way to rebuild the header). We avoid this by adding
-## dummy dependencies for each header file. Too bad gcc doesn't do
-## this for us directly.
-## Some versions of gcc put a space before the ':'. On the theory
-## that the space means something, we add a space to the output as
-## well. hp depmode also adds that space, but also prefixes the VPATH
-## to the object. Take care to not repeat it in the output.
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly. Breaking it into two sed invocations is a workaround.
- tr ' ' "$nl" < "$tmpdepfile" \
- | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
- | sed -e 's/$/ :/' >> "$depfile"
- rm -f "$tmpdepfile"
- ;;
-
-hp)
- # This case exists only to let depend.m4 do its work. It works by
- # looking at the text of this script. This case will never be run,
- # since it is checked for above.
- exit 1
- ;;
-
-sgi)
- if test "$libtool" = yes; then
- "$@" "-Wp,-MDupdate,$tmpdepfile"
- else
- "$@" -MDupdate "$tmpdepfile"
- fi
- stat=$?
- if test $stat -ne 0; then
- rm -f "$tmpdepfile"
- exit $stat
- fi
- rm -f "$depfile"
-
- if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
- echo "$object : \\" > "$depfile"
- # Clip off the initial element (the dependent). Don't try to be
- # clever and replace this with sed code, as IRIX sed won't handle
- # lines with more than a fixed number of characters (4096 in
- # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
- # the IRIX cc adds comments like '#:fec' to the end of the
- # dependency line.
- tr ' ' "$nl" < "$tmpdepfile" \
- | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
- | tr "$nl" ' ' >> "$depfile"
- echo >> "$depfile"
- # The second pass generates a dummy entry for each header file.
- tr ' ' "$nl" < "$tmpdepfile" \
- | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
- >> "$depfile"
- else
- make_dummy_depfile
- fi
- rm -f "$tmpdepfile"
- ;;
-
-xlc)
- # This case exists only to let depend.m4 do its work. It works by
- # looking at the text of this script. This case will never be run,
- # since it is checked for above.
- exit 1
- ;;
-
-aix)
- # The C for AIX Compiler uses -M and outputs the dependencies
- # in a .u file. In older versions, this file always lives in the
- # current directory. Also, the AIX compiler puts '$object:' at the
- # start of each line; $object doesn't have directory information.
- # Version 6 uses the directory in both cases.
- set_dir_from "$object"
- set_base_from "$object"
- if test "$libtool" = yes; then
- tmpdepfile1=$dir$base.u
- tmpdepfile2=$base.u
- tmpdepfile3=$dir.libs/$base.u
- "$@" -Wc,-M
- else
- tmpdepfile1=$dir$base.u
- tmpdepfile2=$dir$base.u
- tmpdepfile3=$dir$base.u
- "$@" -M
- fi
- stat=$?
- if test $stat -ne 0; then
- rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
- exit $stat
- fi
-
- for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
- do
- test -f "$tmpdepfile" && break
- done
- aix_post_process_depfile
- ;;
-
-tcc)
- # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
- # FIXME: That version still under development at the moment of writing.
- # Make that this statement remains true also for stable, released
- # versions.
- # It will wrap lines (doesn't matter whether long or short) with a
- # trailing '\', as in:
- #
- # foo.o : \
- # foo.c \
- # foo.h \
- #
- # It will put a trailing '\' even on the last line, and will use leading
- # spaces rather than leading tabs (at least since its commit 0394caf7
- # "Emit spaces for -MD").
- "$@" -MD -MF "$tmpdepfile"
- stat=$?
- if test $stat -ne 0; then
- rm -f "$tmpdepfile"
- exit $stat
- fi
- rm -f "$depfile"
- # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
- # We have to change lines of the first kind to '$object: \'.
- sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
- # And for each line of the second kind, we have to emit a 'dep.h:'
- # dummy dependency, to avoid the deleted-header problem.
- sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
- rm -f "$tmpdepfile"
- ;;
-
-## The order of this option in the case statement is important, since the
-## shell code in configure will try each of these formats in the order
-## listed in this file. A plain '-MD' option would be understood by many
-## compilers, so we must ensure this comes after the gcc and icc options.
-pgcc)
- # Portland's C compiler understands '-MD'.
- # Will always output deps to 'file.d' where file is the root name of the
- # source file under compilation, even if file resides in a subdirectory.
- # The object file name does not affect the name of the '.d' file.
- # pgcc 10.2 will output
- # foo.o: sub/foo.c sub/foo.h
- # and will wrap long lines using '\' :
- # foo.o: sub/foo.c ... \
- # sub/foo.h ... \
- # ...
- set_dir_from "$object"
- # Use the source, not the object, to determine the base name, since
- # that's sadly what pgcc will do too.
- set_base_from "$source"
- tmpdepfile=$base.d
-
- # For projects that build the same source file twice into different object
- # files, the pgcc approach of using the *source* file root name can cause
- # problems in parallel builds. Use a locking strategy to avoid stomping on
- # the same $tmpdepfile.
- lockdir=$base.d-lock
- trap "
- echo '$0: caught signal, cleaning up...' >&2
- rmdir '$lockdir'
- exit 1
- " 1 2 13 15
- numtries=100
- i=$numtries
- while test $i -gt 0; do
- # mkdir is a portable test-and-set.
- if mkdir "$lockdir" 2>/dev/null; then
- # This process acquired the lock.
- "$@" -MD
- stat=$?
- # Release the lock.
- rmdir "$lockdir"
- break
- else
- # If the lock is being held by a different process, wait
- # until the winning process is done or we timeout.
- while test -d "$lockdir" && test $i -gt 0; do
- sleep 1
- i=`expr $i - 1`
- done
- fi
- i=`expr $i - 1`
- done
- trap - 1 2 13 15
- if test $i -le 0; then
- echo "$0: failed to acquire lock after $numtries attempts" >&2
- echo "$0: check lockdir '$lockdir'" >&2
- exit 1
- fi
-
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-hp2)
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- if test -f "$tmpdepfile"; then
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- # Add 'dependent.h:' lines.
- sed -ne '2,${
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-tru64)
- # The Tru64 compiler uses -MD to generate dependencies as a side
- # effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
- # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
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- set_dir_from "$object"
- set_base_from "$object"
-
- if test "$libtool" = yes; then
- # Libtool generates 2 separate objects for the 2 libraries. These
- # two compilations output dependencies in $dir.libs/$base.o.d and
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- tmpdepfile1=$dir$base.d
- tmpdepfile2=$dir$base.d
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- "$@" -MD
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- stat=$?
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- sed < "$tmpdepfile" -n '
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- # Remove the call to Libtool.
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- # Remove '-o $object'.
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- shift # fnord
- shift # $arg
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-
- test -z "$dashmflag" && dashmflag=-M
- # Require at least two characters before searching for ':'
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- "$@" $dashmflag |
- sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
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- # Some versions of the HPUX 10.20 sed can't process this sed invocation
- # correctly. Breaking it into two sed invocations is a workaround.
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-dashXmstdout)
- # This case only exists to satisfy depend.m4. It is never actually
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-makedepend)
- "$@" || exit $?
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- "$@" -E \
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diff --git a/3rdparty/libpng/libpng-1.6.37/example.c b/3rdparty/libpng/libpng-1.6.37/example.c
deleted file mode 100644
index 2e2afaa..0000000
--- a/3rdparty/libpng/libpng-1.6.37/example.c
+++ /dev/null
@@ -1,1040 +0,0 @@
-
-#if 0 /* in case someone actually tries to compile this */
-
-/* example.c - an example of using libpng
- *
- * Maintained 2018 Cosmin Truta
- * Maintained 1998-2016 Glenn Randers-Pehrson
- * Maintained 1996-1997 Andreas Dilger
- * Written 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * To the extent possible under law, the authors have waived
- * all copyright and related or neighboring rights to this file.
- * This work is published from: United States, Canada.
- */
-
-/* This is an example of how to use libpng to read and write PNG files.
- * The file libpng-manual.txt is much more verbose then this. If you have
- * not read it, do so first. This was designed to be a starting point of an
- * implementation. This is not officially part of libpng, is hereby placed
- * in the public domain, and therefore does not require a copyright notice.
- *
- * This file does not currently compile, because it is missing certain
- * parts, like allocating memory to hold an image. You will have to
- * supply these parts to get it to compile. For an example of a minimal
- * working PNG reader/writer, see pngtest.c, included in this distribution;
- * see also the programs in the contrib directory.
- */
-
-/* The simple, but restricted approach to reading a PNG file or data stream
- * requires just two function calls, as in the following complete program.
- * Writing a file needs just one function call, so long as the data has an
- * appropriate layout.
- *
- * The following code reads PNG image data from a file and writes it, in a
- * potentially new format, to a new file. While this code will compile, there
- * is minimal (insufficient) error checking. For a more realistic version,
- * see contrib/examples/pngtopng.c
- */
-
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <png.h>
-#include <zlib.h>
-
-int main(int argc, const char **argv)
-{
- if (argc == 3)
- {
- png_image image; /* The control structure used by libpng */
-
- /* Initialize the 'png_image' structure. */
- memset(&image, 0, (sizeof image));
- image.version = PNG_IMAGE_VERSION;
-
- /* The first argument is the file to read: */
- if (png_image_begin_read_from_file(&image, argv[1]) != 0)
- {
- png_bytep buffer;
-
- /* Set the format in which to read the PNG file; this code chooses a
- * simple sRGB format with a non-associated alpha channel, adequate to
- * store most images.
- */
- image.format = PNG_FORMAT_RGBA;
-
- /* Now allocate enough memory to hold the image in this format; the
- * PNG_IMAGE_SIZE macro uses the information about the image (width,
- * height and format) stored in 'image'.
- */
- buffer = malloc(PNG_IMAGE_SIZE(image));
-
- /* If enough memory was available, read the image in the desired
- * format, then write the result out to the new file. 'background' is
- * not necessary when reading the image, because the alpha channel is
- * preserved; if it were to be removed, for example if we requested
- * PNG_FORMAT_RGB, then either a solid background color would have to
- * be supplied, or the output buffer would have to be initialized to
- * the actual background of the image.
- *
- * The fourth argument to png_image_finish_read is the 'row_stride' -
- * this is the number of components allocated for the image in each
- * row. It has to be at least as big as the value returned by
- * PNG_IMAGE_ROW_STRIDE, but if you just allocate space for the
- * default, minimum size, using PNG_IMAGE_SIZE as above, you can pass
- * zero.
- *
- * The final argument is a pointer to a buffer for the colormap;
- * colormaps have exactly the same format as a row of image pixels
- * (so you choose what format to make the colormap by setting
- * image.format). A colormap is only returned if
- * PNG_FORMAT_FLAG_COLORMAP is also set in image.format, so in this
- * case NULL is passed as the final argument. If you do want to force
- * all images into an index/color-mapped format, then you can use:
- *
- * PNG_IMAGE_COLORMAP_SIZE(image)
- *
- * to find the maximum size of the colormap in bytes.
- */
- if (buffer != NULL &&
- png_image_finish_read(&image, NULL/*background*/, buffer,
- 0/*row_stride*/, NULL/*colormap*/) != 0)
- {
- /* Now write the image out to the second argument. In the write
- * call 'convert_to_8bit' allows 16-bit data to be squashed down to
- * 8 bits; this isn't necessary here because the original read was
- * to the 8-bit format.
- */
- if (png_image_write_to_file(&image, argv[2], 0/*convert_to_8bit*/,
- buffer, 0/*row_stride*/, NULL/*colormap*/) != 0)
- {
- /* The image has been written successfully. */
- exit(0);
- }
- }
- else
- {
- /* Calling png_image_free is optional unless the simplified API was
- * not run to completion. In this case, if there wasn't enough
- * memory for 'buffer', we didn't complete the read, so we must
- * free the image:
- */
- if (buffer == NULL)
- png_image_free(&image);
- else
- free(buffer);
- }
-
- /* Something went wrong reading or writing the image. libpng stores a
- * textual message in the 'png_image' structure:
- */
- fprintf(stderr, "pngtopng: error: %s\n", image.message);
- exit(1);
- }
-
- fprintf(stderr, "pngtopng: usage: pngtopng input-file output-file\n");
- exit(2);
-}
-
-/* That's it ;-) Of course you probably want to do more with PNG files than
- * just converting them all to 32-bit RGBA PNG files; you can do that between
- * the call to png_image_finish_read and png_image_write_to_file. You can also
- * ask for the image data to be presented in a number of different formats.
- * You do this by simply changing the 'format' parameter set before allocating
- * the buffer.
- *
- * The format parameter consists of five flags that define various aspects of
- * the image. You can simply add these together to get the format, or you can
- * use one of the predefined macros from png.h (as above):
- *
- * PNG_FORMAT_FLAG_COLOR: if set, the image will have three color components
- * per pixel (red, green and blue); if not set, the image will just have one
- * luminance (grayscale) component.
- *
- * PNG_FORMAT_FLAG_ALPHA: if set, each pixel in the image will have an
- * additional alpha value; a linear value that describes the degree the
- * image pixel covers (overwrites) the contents of the existing pixel on the
- * display.
- *
- * PNG_FORMAT_FLAG_LINEAR: if set, the components of each pixel will be
- * returned as a series of 16-bit linear values; if not set, the components
- * will be returned as a series of 8-bit values encoded according to the
- * sRGB standard. The 8-bit format is the normal format for images intended
- * for direct display, because almost all display devices do the inverse of
- * the sRGB transformation to the data they receive. The 16-bit format is
- * more common for scientific data and image data that must be further
- * processed; because it is linear, simple math can be done on the component
- * values. Regardless of the setting of this flag, the alpha channel is
- * always linear, although it will be 8 bits or 16 bits wide as specified by
- * the flag.
- *
- * PNG_FORMAT_FLAG_BGR: if set, the components of a color pixel will be
- * returned in the order blue, then green, then red. If not set, the pixel
- * components are in the order red, then green, then blue.
- *
- * PNG_FORMAT_FLAG_AFIRST: if set, the alpha channel (if present) precedes the
- * color or grayscale components. If not set, the alpha channel follows the
- * components.
- *
- * You do not have to read directly from a file. You can read from memory or,
- * on systems that support it, from a <stdio.h> FILE*. This is controlled by
- * the particular png_image_read_from_ function you call at the start.
- * Likewise, on write, you can write to a FILE* if your system supports it.
- * Check the macro PNG_STDIO_SUPPORTED to see if stdio support has been
- * included in your libpng build.
- *
- * If you read 16-bit (PNG_FORMAT_FLAG_LINEAR) data, you may need to write it
- * in the 8-bit format for display. You do this by setting the convert_to_8bit
- * flag to 'true'.
- *
- * Don't repeatedly convert between the 8-bit and 16-bit forms. There is
- * significant data loss when 16-bit data is converted to the 8-bit encoding,
- * and the current libpng implementation of conversion to 16-bit is also
- * significantly lossy. The latter will be fixed in the future, but the former
- * is unavoidable - the 8-bit format just doesn't have enough resolution.
- */
-
-/* If your program needs more information from the PNG data it reads, or if you
- * need to do more complex transformations, or minimize transformations, on the
- * data you read, then you must use one of the several lower level libpng
- * interfaces.
- *
- * All these interfaces require that you do your own error handling - your
- * program must be able to arrange for control to return to your own code, any
- * time libpng encounters a problem. There are several ways to do this, but
- * the standard way is to use the <setjmp.h> interface to establish a return
- * point within your own code. You must do this if you do not use the
- * simplified interface (above).
- *
- * The first step is to include the header files you need, including the libpng
- * header file. Include any standard headers and feature test macros your
- * program requires before including png.h:
- */
-#include <png.h>
-
- /* The png_jmpbuf() macro, used in error handling, became available in
- * libpng version 1.0.6. If you want to be able to run your code with older
- * versions of libpng, you must define the macro yourself (but only if it
- * is not already defined by libpng!)
- */
-
-#ifndef png_jmpbuf
-# define png_jmpbuf(png_ptr) ((png_ptr)->png_jmpbuf)
-#endif
-
-/* Check to see if a file is a PNG file using png_sig_cmp(). png_sig_cmp()
- * returns zero if the image is a PNG, and nonzero otherwise.
- *
- * The function check_if_png() shown here, but not used, returns nonzero (true)
- * if the file can be opened and is a PNG, and 0 (false) otherwise.
- *
- * If this call is successful, and you are going to keep the file open,
- * you should call png_set_sig_bytes(png_ptr, PNG_BYTES_TO_CHECK); once
- * you have created the png_ptr, so that libpng knows your application
- * has read that many bytes from the start of the file. Make sure you
- * don't call png_set_sig_bytes() with more than 8 bytes read or give it
- * an incorrect number of bytes read, or you will either have read too
- * many bytes (your fault), or you are telling libpng to read the wrong
- * number of magic bytes (also your fault).
- *
- * Many applications already read the first 2 or 4 bytes from the start
- * of the image to determine the file type, so it would be easiest just
- * to pass the bytes to png_sig_cmp(), or even skip that if you know
- * you have a PNG file, and call png_set_sig_bytes().
- */
-#define PNG_BYTES_TO_CHECK 4
-int check_if_png(char *file_name, FILE **fp)
-{
- char buf[PNG_BYTES_TO_CHECK];
-
- /* Open the prospective PNG file. */
- if ((*fp = fopen(file_name, "rb")) == NULL)
- return 0;
-
- /* Read in some of the signature bytes. */
- if (fread(buf, 1, PNG_BYTES_TO_CHECK, *fp) != PNG_BYTES_TO_CHECK)
- return 0;
-
- /* Compare the first PNG_BYTES_TO_CHECK bytes of the signature.
- * Return nonzero (true) if they match.
- */
- return(!png_sig_cmp(buf, 0, PNG_BYTES_TO_CHECK));
-}
-
-/* Read a PNG file. You may want to return an error code if the read
- * fails (depending upon the failure). There are two "prototypes" given
- * here - one where we are given the filename, and we need to open the
- * file, and the other where we are given an open file (possibly with
- * some or all of the magic bytes read - see comments above).
- */
-#ifdef open_file /* prototype 1 */
-void read_png(char *file_name) /* We need to open the file */
-{
- png_structp png_ptr;
- png_infop info_ptr;
- int sig_read = 0;
- png_uint_32 width, height;
- int bit_depth, color_type, interlace_type;
- FILE *fp;
-
- if ((fp = fopen(file_name, "rb")) == NULL)
- return (ERROR);
-
-#else no_open_file /* prototype 2 */
-void read_png(FILE *fp, int sig_read) /* File is already open */
-{
- png_structp png_ptr;
- png_infop info_ptr;
- png_uint_32 width, height;
- int bit_depth, color_type, interlace_type;
-#endif no_open_file /* Only use one prototype! */
-
- /* Create and initialize the png_struct with the desired error handler
- * functions. If you want to use the default stderr and longjump method,
- * you can supply NULL for the last three parameters. We also supply the
- * the compiler header file version, so that we know if the application
- * was compiled with a compatible version of the library. REQUIRED.
- */
- png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
- png_voidp user_error_ptr, user_error_fn, user_warning_fn);
-
- if (png_ptr == NULL)
- {
- fclose(fp);
- return (ERROR);
- }
-
- /* Allocate/initialize the memory for image information. REQUIRED. */
- info_ptr = png_create_info_struct(png_ptr);
- if (info_ptr == NULL)
- {
- fclose(fp);
- png_destroy_read_struct(&png_ptr, NULL, NULL);
- return (ERROR);
- }
-
- /* Set error handling if you are using the setjmp/longjmp method (this is
- * the normal method of doing things with libpng). REQUIRED unless you
- * set up your own error handlers in the png_create_read_struct() earlier.
- */
- if (setjmp(png_jmpbuf(png_ptr)))
- {
- /* Free all of the memory associated with the png_ptr and info_ptr. */
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- fclose(fp);
- /* If we get here, we had a problem reading the file. */
- return (ERROR);
- }
-
- /* One of the following I/O initialization methods is REQUIRED. */
-#ifdef streams /* PNG file I/O method 1 */
- /* Set up the input control if you are using standard C streams. */
- png_init_io(png_ptr, fp);
-
-#else no_streams /* PNG file I/O method 2 */
- /* If you are using replacement read functions, instead of calling
- * png_init_io(), you would call:
- */
- png_set_read_fn(png_ptr, (void *)user_io_ptr, user_read_fn);
- /* where user_io_ptr is a structure you want available to the callbacks. */
-#endif no_streams /* Use only one I/O method! */
-
- /* If we have already read some of the signature */
- png_set_sig_bytes(png_ptr, sig_read);
-
-#ifdef hilevel
- /* If you have enough memory to read in the entire image at once,
- * and you need to specify only transforms that can be controlled
- * with one of the PNG_TRANSFORM_* bits (this presently excludes
- * quantizing, filling, setting background, and doing gamma
- * adjustment), then you can read the entire image (including
- * pixels) into the info structure with this call:
- */
- png_read_png(png_ptr, info_ptr, png_transforms, NULL);
-
-#else
- /* OK, you're doing it the hard way, with the lower-level functions. */
-
- /* The call to png_read_info() gives us all of the information from the
- * PNG file before the first IDAT (image data chunk). REQUIRED.
- */
- png_read_info(png_ptr, info_ptr);
-
- png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
- &interlace_type, NULL, NULL);
-
- /* Set up the data transformations you want. Note that these are all
- * optional. Only call them if you want/need them. Many of the
- * transformations only work on specific types of images, and many
- * are mutually exclusive.
- */
-
- /* Tell libpng to strip 16 bits/color files down to 8 bits/color.
- * Use accurate scaling if it's available, otherwise just chop off the
- * low byte.
- */
-#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
- png_set_scale_16(png_ptr);
-#else
- png_set_strip_16(png_ptr);
-#endif
-
- /* Strip alpha bytes from the input data without combining with the
- * background (not recommended).
- */
- png_set_strip_alpha(png_ptr);
-
- /* Extract multiple pixels with bit depths of 1, 2 or 4 from a single
- * byte into separate bytes (useful for paletted and grayscale images).
- */
- png_set_packing(png_ptr);
-
- /* Change the order of packed pixels to least significant bit first
- * (not useful if you are using png_set_packing).
- */
- png_set_packswap(png_ptr);
-
- /* Expand paletted colors into true RGB triplets. */
- if (color_type == PNG_COLOR_TYPE_PALETTE)
- png_set_palette_to_rgb(png_ptr);
-
- /* Expand grayscale images to the full 8 bits from 1, 2 or 4 bits/pixel. */
- if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
- png_set_expand_gray_1_2_4_to_8(png_ptr);
-
- /* Expand paletted or RGB images with transparency to full alpha channels
- * so the data will be available as RGBA quartets.
- */
- if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS) != 0)
- png_set_tRNS_to_alpha(png_ptr);
-
- /* Set the background color to draw transparent and alpha images over.
- * It is possible to set the red, green and blue components directly
- * for paletted images, instead of supplying a palette index. Note that,
- * even if the PNG file supplies a background, you are not required to
- * use it - you should use the (solid) application background if it has one.
- */
- png_color_16 my_background, *image_background;
-
- if (png_get_bKGD(png_ptr, info_ptr, &image_background) != 0)
- png_set_background(png_ptr, image_background,
- PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
- else
- png_set_background(png_ptr, &my_background,
- PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
-
- /* Some suggestions as to how to get a screen gamma value.
- *
- * Note that screen gamma is the display_exponent, which includes
- * the CRT_exponent and any correction for viewing conditions.
- */
- if (/* We have a user-defined screen gamma value */)
- screen_gamma = user-defined screen_gamma;
- /* This is one way that applications share the same screen gamma value. */
- else if ((gamma_str = getenv("SCREEN_GAMMA")) != NULL)
- screen_gamma = atof(gamma_str);
- /* If we don't have another value */
- else
- {
- screen_gamma = PNG_DEFAULT_sRGB; /* A good guess for a PC monitor
- in a dimly lit room */
- screen_gamma = PNG_GAMMA_MAC_18 or 1.0; /* Good guesses for Mac
- systems */
- }
-
- /* Tell libpng to handle the gamma conversion for you. The final call
- * is a good guess for PC generated images, but it should be configurable
- * by the user at run time. Gamma correction support in your application
- * is strongly recommended.
- */
-
- int intent;
-
- if (png_get_sRGB(png_ptr, info_ptr, &intent) != 0)
- png_set_gamma(png_ptr, screen_gamma, PNG_DEFAULT_sRGB);
- else
- {
- double image_gamma;
- if (png_get_gAMA(png_ptr, info_ptr, &image_gamma) != 0)
- png_set_gamma(png_ptr, screen_gamma, image_gamma);
- else
- png_set_gamma(png_ptr, screen_gamma, 0.45455);
- }
-
-#ifdef PNG_READ_QUANTIZE_SUPPORTED
- /* Quantize RGB files down to 8-bit palette, or reduce palettes
- * to the number of colors available on your screen.
- */
- if ((color_type & PNG_COLOR_MASK_COLOR) != 0)
- {
- int num_palette;
- png_colorp palette;
-
- /* This reduces the image to the application-supplied palette. */
- if (/* We have our own palette */)
- {
- /* An array of colors to which the image should be quantized. */
- png_color std_color_cube[MAX_SCREEN_COLORS];
- png_set_quantize(png_ptr, std_color_cube, MAX_SCREEN_COLORS,
- MAX_SCREEN_COLORS, NULL, 0);
- }
- /* This reduces the image to the palette supplied in the file. */
- else if (png_get_PLTE(png_ptr, info_ptr, &palette, &num_palette) != 0)
- {
- png_uint_16p histogram = NULL;
- png_get_hIST(png_ptr, info_ptr, &histogram);
- png_set_quantize(png_ptr, palette, num_palette,
- max_screen_colors, histogram, 0);
- }
- }
-#endif /* READ_QUANTIZE */
-
- /* Invert monochrome files to have 0 as white and 1 as black. */
- png_set_invert_mono(png_ptr);
-
- /* If you want to shift the pixel values from the range [0,255] or
- * [0,65535] to the original [0,7] or [0,31], or whatever range the
- * colors were originally in:
- */
- if (png_get_valid(png_ptr, info_ptr, PNG_INFO_sBIT) != 0)
- {
- png_color_8p sig_bit_p;
- png_get_sBIT(png_ptr, info_ptr, &sig_bit_p);
- png_set_shift(png_ptr, sig_bit_p);
- }
-
- /* Flip the RGB pixels to BGR (or RGBA to BGRA). */
- if ((color_type & PNG_COLOR_MASK_COLOR) != 0)
- png_set_bgr(png_ptr);
-
- /* Swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR). */
- png_set_swap_alpha(png_ptr);
-
- /* Swap bytes of 16-bit files to least significant byte first. */
- png_set_swap(png_ptr);
-
- /* Add filler (or alpha) byte (before/after each RGB triplet). */
- png_set_filler(png_ptr, 0xffff, PNG_FILLER_AFTER);
-
-#ifdef PNG_READ_INTERLACING_SUPPORTED
- /* Turn on interlace handling. REQUIRED if you are not using
- * png_read_image(). To see how to handle interlacing passes,
- * see the png_read_row() method below:
- */
- number_passes = png_set_interlace_handling(png_ptr);
-#else /* !READ_INTERLACING */
- number_passes = 1;
-#endif /* READ_INTERLACING */
-
- /* Optional call to gamma correct and add the background to the palette
- * and update info structure. REQUIRED if you are expecting libpng to
- * update the palette for you (i.e. you selected such a transform above).
- */
- png_read_update_info(png_ptr, info_ptr);
-
- /* Allocate the memory to hold the image using the fields of info_ptr. */
- png_bytep row_pointers[height];
- for (row = 0; row < height; row++)
- row_pointers[row] = NULL; /* Clear the pointer array */
- for (row = 0; row < height; row++)
- row_pointers[row] = png_malloc(png_ptr, png_get_rowbytes(png_ptr,
- info_ptr));
-
- /* Now it's time to read the image. One of these methods is REQUIRED. */
-#ifdef entire /* Read the entire image in one go */
- png_read_image(png_ptr, row_pointers);
-
-#else no_entire /* Read the image one or more scanlines at a time */
- /* The other way to read images - deal with interlacing: */
- for (pass = 0; pass < number_passes; pass++)
- {
-#ifdef single /* Read the image a single row at a time */
- for (y = 0; y < height; y++)
- png_read_rows(png_ptr, &row_pointers[y], NULL, 1);
-
-#else no_single /* Read the image several rows at a time */
- for (y = 0; y < height; y += number_of_rows)
- {
-#ifdef sparkle /* Read the image using the "sparkle" effect. */
- png_read_rows(png_ptr, &row_pointers[y], NULL,
- number_of_rows);
-#else no_sparkle /* Read the image using the "rectangle" effect */
- png_read_rows(png_ptr, NULL, &row_pointers[y],
- number_of_rows);
-#endif no_sparkle /* Use only one of these two methods */
- }
-
- /* If you want to display the image after every pass, do so here. */
-#endif no_single /* Use only one of these two methods */
- }
-#endif no_entire /* Use only one of these two methods */
-
- /* Read rest of file, and get additional chunks in info_ptr. REQUIRED. */
- png_read_end(png_ptr, info_ptr);
-#endif hilevel
-
- /* At this point you have read the entire image. */
-
- /* Clean up after the read, and free any memory allocated. REQUIRED. */
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
-
- /* Close the file. */
- fclose(fp);
-
- /* That's it! */
- return (OK);
-}
-
-/* Progressively read a file */
-
-int
-initialize_png_reader(png_structp *png_ptr, png_infop *info_ptr)
-{
- /* Create and initialize the png_struct with the desired error handler
- * functions. If you want to use the default stderr and longjump method,
- * you can supply NULL for the last three parameters. We also check that
- * the library version is compatible, in case we are using dynamically
- * linked libraries.
- */
- *png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
- png_voidp user_error_ptr, user_error_fn, user_warning_fn);
- if (*png_ptr == NULL)
- {
- *info_ptr = NULL;
- return (ERROR);
- }
- *info_ptr = png_create_info_struct(png_ptr);
- if (*info_ptr == NULL)
- {
- png_destroy_read_struct(png_ptr, info_ptr, NULL);
- return (ERROR);
- }
- if (setjmp(png_jmpbuf((*png_ptr))))
- {
- png_destroy_read_struct(png_ptr, info_ptr, NULL);
- return (ERROR);
- }
-
- /* You will need to provide all three function callbacks,
- * even if you aren't using all of them.
- * If you aren't using all functions, you can specify NULL
- * parameters. Even when all three functions are NULL,
- * you need to call png_set_progressive_read_fn().
- * These functions shouldn't be dependent on global or
- * static variables if you are decoding several images
- * simultaneously. You should store stream specific data
- * in a separate struct, given as the second parameter,
- * and retrieve the pointer from inside the callbacks using
- * the function png_get_progressive_ptr(png_ptr).
- */
- png_set_progressive_read_fn(*png_ptr, (void *)stream_data,
- info_callback, row_callback, end_callback);
- return (OK);
-}
-
-int
-process_data(png_structp *png_ptr, png_infop *info_ptr,
- png_bytep buffer, png_uint_32 length)
-{
- if (setjmp(png_jmpbuf((*png_ptr))))
- {
- /* Free the png_ptr and info_ptr memory on error. */
- png_destroy_read_struct(png_ptr, info_ptr, NULL);
- return (ERROR);
- }
-
- /* Give chunks of data as they arrive from the data stream
- * (in order, of course).
- * On segmented machines, don't give it any more than 64K.
- * The library seems to run fine with sizes of 4K, although
- * you can give it much less if necessary. (I assume you can
- * give it chunks of 1 byte, but I haven't tried with less
- * than 256 bytes yet.) When this function returns, you may
- * want to display any rows that were generated in the row
- * callback, if you aren't already displaying them there.
- */
- png_process_data(*png_ptr, *info_ptr, buffer, length);
- return (OK);
-}
-
-info_callback(png_structp png_ptr, png_infop info)
-{
- /* Do any setup here, including setting any of the transformations
- * mentioned in the Reading PNG files section. For now, you _must_
- * call either png_start_read_image() or png_read_update_info()
- * after all the transformations are set (even if you don't set
- * any). You may start getting rows before png_process_data()
- * returns, so this is your last chance to prepare for that.
- */
-}
-
-row_callback(png_structp png_ptr, png_bytep new_row,
- png_uint_32 row_num, int pass)
-{
- /* This function is called for every row in the image. If the
- * image is interlaced, and you turned on the interlace handler,
- * this function will be called for every row in every pass.
- *
- * In this function you will receive a pointer to new row data from
- * libpng called new_row that is to replace a corresponding row (of
- * the same data format) in a buffer allocated by your application.
- *
- * The new row data pointer "new_row" may be NULL, indicating there is
- * no new data to be replaced (in cases of interlace loading).
- *
- * If new_row is not NULL, then you need to call
- * png_progressive_combine_row(), to replace the corresponding row as
- * shown below:
- */
-
- /* Get pointer to corresponding row in our PNG read buffer. */
- png_bytep old_row = ((png_bytep *)our_data)[row_num];
-
-#ifdef PNG_READ_INTERLACING_SUPPORTED
- /* If both rows are allocated, then copy the new row
- * data to the corresponding row data.
- */
- if (old_row != NULL && new_row != NULL)
- png_progressive_combine_row(png_ptr, old_row, new_row);
-
- /* The rows and passes are called in order, so you don't really
- * need the row_num and pass, but I'm supplying them because it
- * may make your life easier.
- *
- * For the non-NULL rows of interlaced images, you must call
- * png_progressive_combine_row() passing in the new row and the
- * old row, as demonstrated above. You can call this function for
- * NULL rows (it will just return) and for non-interlaced images
- * (it just does the memcpy for you) if it will make the code
- * easier. Thus, you can just do this for all cases:
- */
- png_progressive_combine_row(png_ptr, old_row, new_row);
-
- /* where old_row is what was displayed for previous rows. Note
- * that the first pass (pass == 0 really) will completely cover
- * the old row, so the rows do not have to be initialized. After
- * the first pass (and only for interlaced images), you will have
- * to pass the current row as new_row, and the function will combine
- * the old row and the new row.
- */
-#endif /* READ_INTERLACING */
-}
-
-end_callback(png_structp png_ptr, png_infop info)
-{
- /* This function is called when the whole image has been read,
- * including any chunks after the image (up to and including
- * the IEND). You will usually have the same info chunk as you
- * had in the header, although some data may have been added
- * to the comments and time fields.
- *
- * Most people won't do much here, perhaps setting a flag that
- * marks the image as finished.
- */
-}
-
-/* Write a png file */
-void write_png(char *file_name /* , ... other image information ... */)
-{
- FILE *fp;
- png_structp png_ptr;
- png_infop info_ptr;
- png_colorp palette;
-
- /* Open the file */
- fp = fopen(file_name, "wb");
- if (fp == NULL)
- return (ERROR);
-
- /* Create and initialize the png_struct with the desired error handler
- * functions. If you want to use the default stderr and longjump method,
- * you can supply NULL for the last three parameters. We also check that
- * the library version is compatible with the one used at compile time,
- * in case we are using dynamically linked libraries. REQUIRED.
- */
- png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
- png_voidp user_error_ptr, user_error_fn, user_warning_fn);
- if (png_ptr == NULL)
- {
- fclose(fp);
- return (ERROR);
- }
-
- /* Allocate/initialize the image information data. REQUIRED. */
- info_ptr = png_create_info_struct(png_ptr);
- if (info_ptr == NULL)
- {
- fclose(fp);
- png_destroy_write_struct(&png_ptr, NULL);
- return (ERROR);
- }
-
- /* Set up error handling. REQUIRED if you aren't supplying your own
- * error handling functions in the png_create_write_struct() call.
- */
- if (setjmp(png_jmpbuf(png_ptr)))
- {
- /* If we get here, we had a problem writing the file. */
- fclose(fp);
- png_destroy_write_struct(&png_ptr, &info_ptr);
- return (ERROR);
- }
-
- /* One of the following I/O initialization functions is REQUIRED. */
-
-#ifdef streams /* I/O initialization method 1 */
- /* Set up the output control if you are using standard C streams. */
- png_init_io(png_ptr, fp);
-
-#else no_streams /* I/O initialization method 2 */
- /* If you are using replacement write functions, instead of calling
- * png_init_io(), you would call:
- */
- png_set_write_fn(png_ptr, (void *)user_io_ptr, user_write_fn,
- user_IO_flush_function);
- /* where user_io_ptr is a structure you want available to the callbacks. */
-#endif no_streams /* Only use one initialization method */
-
-#ifdef hilevel
- /* This is the easy way. Use it if you already have all the
- * image info living in the structure. You could "|" many
- * PNG_TRANSFORM flags into the png_transforms integer here.
- */
- png_write_png(png_ptr, info_ptr, png_transforms, NULL);
-
-#else
- /* This is the hard way. */
-
- /* Set the image information here. Width and height are up to 2^31,
- * bit_depth is one of 1, 2, 4, 8 or 16, but valid values also depend on
- * the color_type selected. color_type is one of PNG_COLOR_TYPE_GRAY,
- * PNG_COLOR_TYPE_GRAY_ALPHA, PNG_COLOR_TYPE_PALETTE, PNG_COLOR_TYPE_RGB,
- * or PNG_COLOR_TYPE_RGB_ALPHA. interlace is either PNG_INTERLACE_NONE or
- * PNG_INTERLACE_ADAM7, and the compression_type and filter_type MUST
- * currently be PNG_COMPRESSION_TYPE_BASE and PNG_FILTER_TYPE_BASE.
- * REQUIRED.
- */
- png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth,
- PNG_COLOR_TYPE_???, PNG_INTERLACE_????,
- PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
-
- /* Set the palette if there is one. REQUIRED for indexed-color images. */
- palette = (png_colorp)png_malloc(png_ptr,
- PNG_MAX_PALETTE_LENGTH * (sizeof (png_color)));
- /* ... Set palette colors ... */
- png_set_PLTE(png_ptr, info_ptr, palette, PNG_MAX_PALETTE_LENGTH);
- /* You must not free palette here, because png_set_PLTE only makes a link
- * to the palette that you allocated. Wait until you are about to destroy
- * the png structure.
- */
-
- /* Optional significant bit (sBIT) chunk. */
- png_color_8 sig_bit;
-
- /* If we are dealing with a grayscale image then */
- sig_bit.gray = true_bit_depth;
-
- /* Otherwise, if we are dealing with a color image then */
- sig_bit.red = true_red_bit_depth;
- sig_bit.green = true_green_bit_depth;
- sig_bit.blue = true_blue_bit_depth;
-
- /* If the image has an alpha channel then */
- sig_bit.alpha = true_alpha_bit_depth;
-
- png_set_sBIT(png_ptr, info_ptr, &sig_bit);
-
- /* Optional gamma chunk is strongly suggested if you have any guess
- * as to the correct gamma of the image.
- */
- png_set_gAMA(png_ptr, info_ptr, gamma);
-
- /* Optionally write comments into the image. */
- {
- png_text text_ptr[3];
-
- char key0[] = "Title";
- char text0[] = "Mona Lisa";
- text_ptr[0].key = key0;
- text_ptr[0].text = text0;
- text_ptr[0].compression = PNG_TEXT_COMPRESSION_NONE;
- text_ptr[0].itxt_length = 0;
- text_ptr[0].lang = NULL;
- text_ptr[0].lang_key = NULL;
-
- char key1[] = "Author";
- char text1[] = "Leonardo DaVinci";
- text_ptr[1].key = key1;
- text_ptr[1].text = text1;
- text_ptr[1].compression = PNG_TEXT_COMPRESSION_NONE;
- text_ptr[1].itxt_length = 0;
- text_ptr[1].lang = NULL;
- text_ptr[1].lang_key = NULL;
-
- char key2[] = "Description";
- char text2[] = "<long text>";
- text_ptr[2].key = key2;
- text_ptr[2].text = text2;
- text_ptr[2].compression = PNG_TEXT_COMPRESSION_zTXt;
- text_ptr[2].itxt_length = 0;
- text_ptr[2].lang = NULL;
- text_ptr[2].lang_key = NULL;
-
- png_set_text(write_ptr, write_info_ptr, text_ptr, 3);
- }
-
- /* Other optional chunks like cHRM, bKGD, tRNS, tIME, oFFs, pHYs. */
-
- /* Note that if sRGB is present, the gAMA and cHRM chunks must be ignored
- * on read and, if your application chooses to write them, they must
- * be written in accordance with the sRGB profile.
- */
-
- /* Write the file header information. REQUIRED. */
- png_write_info(png_ptr, info_ptr);
-
- /* If you want, you can write the info in two steps, in case you need to
- * write your private chunk ahead of PLTE:
- *
- * png_write_info_before_PLTE(write_ptr, write_info_ptr);
- * write_my_chunk();
- * png_write_info(png_ptr, info_ptr);
- *
- * However, given the level of known- and unknown-chunk support in 1.2.0
- * and up, this should no longer be necessary.
- */
-
- /* Once we write out the header, the compression type on the text
- * chunk gets changed to PNG_TEXT_COMPRESSION_NONE_WR or
- * PNG_TEXT_COMPRESSION_zTXt_WR, so it doesn't get written out again
- * at the end.
- */
-
- /* Set up the transformations you want. Note that these are
- * all optional. Only call them if you want them.
- */
-
- /* Invert monochrome pixels. */
- png_set_invert_mono(png_ptr);
-
- /* Shift the pixels up to a legal bit depth and fill in
- * as appropriate to correctly scale the image.
- */
- png_set_shift(png_ptr, &sig_bit);
-
- /* Pack pixels into bytes. */
- png_set_packing(png_ptr);
-
- /* Swap location of alpha bytes from ARGB to RGBA. */
- png_set_swap_alpha(png_ptr);
-
- /* Get rid of filler (OR ALPHA) bytes, pack XRGB/RGBX/ARGB/RGBA into
- * RGB (4 channels -> 3 channels). The second parameter is not used.
- */
- png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE);
-
- /* Flip BGR pixels to RGB. */
- png_set_bgr(png_ptr);
-
- /* Swap bytes of 16-bit files to most significant byte first. */
- png_set_swap(png_ptr);
-
- /* Swap bits of 1-bit, 2-bit, 4-bit packed pixel formats. */
- png_set_packswap(png_ptr);
-
- /* Turn on interlace handling if you are not using png_write_image(). */
- if (interlacing != 0)
- number_passes = png_set_interlace_handling(png_ptr);
- else
- number_passes = 1;
-
- /* The easiest way to write the image (you may have a different memory
- * layout, however, so choose what fits your needs best). You need to
- * use the first method if you aren't handling interlacing yourself.
- */
- png_uint_32 k, height, width;
-
- /* In this example, "image" is a one-dimensional array of bytes. */
-
- /* Guard against integer overflow. */
- if (height > PNG_SIZE_MAX / (width * bytes_per_pixel))
- png_error(png_ptr, "Image data buffer would be too large");
-
- png_byte image[height * width * bytes_per_pixel];
- png_bytep row_pointers[height];
-
- if (height > PNG_UINT_32_MAX / (sizeof (png_bytep)))
- png_error(png_ptr, "Image is too tall to process in memory");
-
- /* Set up pointers into your "image" byte array. */
- for (k = 0; k < height; k++)
- row_pointers[k] = image + k * width * bytes_per_pixel;
-
- /* One of the following output methods is REQUIRED. */
-
-#ifdef entire /* Write out the entire image data in one call */
- png_write_image(png_ptr, row_pointers);
-
- /* The other way to write the image - deal with interlacing. */
-
-#else no_entire /* Write out the image data by one or more scanlines */
-
- /* The number of passes is either 1 for non-interlaced images,
- * or 7 for interlaced images.
- */
- for (pass = 0; pass < number_passes; pass++)
- {
- /* Write a few rows at a time. */
- png_write_rows(png_ptr, &row_pointers[first_row], number_of_rows);
-
- /* If you are only writing one row at a time, this works. */
- for (y = 0; y < height; y++)
- png_write_rows(png_ptr, &row_pointers[y], 1);
- }
-#endif no_entire /* Use only one output method */
-
- /* You can write optional chunks like tEXt, zTXt, and tIME at the end
- * as well. Shouldn't be necessary in 1.2.0 and up, as all the public
- * chunks are supported, and you can use png_set_unknown_chunks() to
- * register unknown chunks into the info structure to be written out.
- */
-
- /* It is REQUIRED to call this to finish writing the rest of the file. */
- png_write_end(png_ptr, info_ptr);
-#endif hilevel
-
- /* If you png_malloced a palette, free it here.
- * (Don't free info_ptr->palette, as shown in versions 1.0.5m and earlier of
- * this example; if libpng mallocs info_ptr->palette, libpng will free it).
- * If you allocated it with malloc() instead of png_malloc(), use free()
- * instead of png_free().
- */
- png_free(png_ptr, palette);
- palette = NULL;
-
- /* Similarly, if you png_malloced any data that you passed in with
- * png_set_something(), such as a hist or trans array, free it here,
- * when you can be sure that libpng is through with it.
- */
- png_free(png_ptr, trans);
- trans = NULL;
-
- /* Whenever you use png_free(), it is a good idea to set the pointer to
- * NULL in case your application inadvertently tries to png_free() it
- * again. When png_free() sees a NULL it returns without action, avoiding
- * the double-free problem.
- */
-
- /* Clean up after the write, and free any allocated memory. */
- png_destroy_write_struct(&png_ptr, &info_ptr);
-
- /* Close the file. */
- fclose(fp);
-
- /* That's it! */
- return (OK);
-}
-
-#endif /* if 0 */
diff --git a/3rdparty/libpng/libpng-1.6.37/install-sh b/3rdparty/libpng/libpng-1.6.37/install-sh
deleted file mode 100755
index 8175c64..0000000
--- a/3rdparty/libpng/libpng-1.6.37/install-sh
+++ /dev/null
@@ -1,518 +0,0 @@
-#!/bin/sh
-# install - install a program, script, or datafile
-
-scriptversion=2018-03-11.20; # UTC
-
-# This originates from X11R5 (mit/util/scripts/install.sh), which was
-# later released in X11R6 (xc/config/util/install.sh) with the
-# following copyright and license.
-#
-# Copyright (C) 1994 X Consortium
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
-# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-#
-# Except as contained in this notice, the name of the X Consortium shall not
-# be used in advertising or otherwise to promote the sale, use or other deal-
-# ings in this Software without prior written authorization from the X Consor-
-# tium.
-#
-#
-# FSF changes to this file are in the public domain.
-#
-# Calling this script install-sh is preferred over install.sh, to prevent
-# 'make' implicit rules from creating a file called install from it
-# when there is no Makefile.
-#
-# This script is compatible with the BSD install script, but was written
-# from scratch.
-
-tab=' '
-nl='
-'
-IFS=" $tab$nl"
-
-# Set DOITPROG to "echo" to test this script.
-
-doit=${DOITPROG-}
-doit_exec=${doit:-exec}
-
-# Put in absolute file names if you don't have them in your path;
-# or use environment vars.
-
-chgrpprog=${CHGRPPROG-chgrp}
-chmodprog=${CHMODPROG-chmod}
-chownprog=${CHOWNPROG-chown}
-cmpprog=${CMPPROG-cmp}
-cpprog=${CPPROG-cp}
-mkdirprog=${MKDIRPROG-mkdir}
-mvprog=${MVPROG-mv}
-rmprog=${RMPROG-rm}
-stripprog=${STRIPPROG-strip}
-
-posix_mkdir=
-
-# Desired mode of installed file.
-mode=0755
-
-chgrpcmd=
-chmodcmd=$chmodprog
-chowncmd=
-mvcmd=$mvprog
-rmcmd="$rmprog -f"
-stripcmd=
-
-src=
-dst=
-dir_arg=
-dst_arg=
-
-copy_on_change=false
-is_target_a_directory=possibly
-
-usage="\
-Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
- or: $0 [OPTION]... SRCFILES... DIRECTORY
- or: $0 [OPTION]... -t DIRECTORY SRCFILES...
- or: $0 [OPTION]... -d DIRECTORIES...
-
-In the 1st form, copy SRCFILE to DSTFILE.
-In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
-In the 4th, create DIRECTORIES.
-
-Options:
- --help display this help and exit.
- --version display version info and exit.
-
- -c (ignored)
- -C install only if different (preserve the last data modification time)
- -d create directories instead of installing files.
- -g GROUP $chgrpprog installed files to GROUP.
- -m MODE $chmodprog installed files to MODE.
- -o USER $chownprog installed files to USER.
- -s $stripprog installed files.
- -t DIRECTORY install into DIRECTORY.
- -T report an error if DSTFILE is a directory.
-
-Environment variables override the default commands:
- CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
- RMPROG STRIPPROG
-"
-
-while test $# -ne 0; do
- case $1 in
- -c) ;;
-
- -C) copy_on_change=true;;
-
- -d) dir_arg=true;;
-
- -g) chgrpcmd="$chgrpprog $2"
- shift;;
-
- --help) echo "$usage"; exit $?;;
-
- -m) mode=$2
- case $mode in
- *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
- echo "$0: invalid mode: $mode" >&2
- exit 1;;
- esac
- shift;;
-
- -o) chowncmd="$chownprog $2"
- shift;;
-
- -s) stripcmd=$stripprog;;
-
- -t)
- is_target_a_directory=always
- dst_arg=$2
- # Protect names problematic for 'test' and other utilities.
- case $dst_arg in
- -* | [=\(\)!]) dst_arg=./$dst_arg;;
- esac
- shift;;
-
- -T) is_target_a_directory=never;;
-
- --version) echo "$0 $scriptversion"; exit $?;;
-
- --) shift
- break;;
-
- -*) echo "$0: invalid option: $1" >&2
- exit 1;;
-
- *) break;;
- esac
- shift
-done
-
-# We allow the use of options -d and -T together, by making -d
-# take the precedence; this is for compatibility with GNU install.
-
-if test -n "$dir_arg"; then
- if test -n "$dst_arg"; then
- echo "$0: target directory not allowed when installing a directory." >&2
- exit 1
- fi
-fi
-
-if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
- # When -d is used, all remaining arguments are directories to create.
- # When -t is used, the destination is already specified.
- # Otherwise, the last argument is the destination. Remove it from $@.
- for arg
- do
- if test -n "$dst_arg"; then
- # $@ is not empty: it contains at least $arg.
- set fnord "$@" "$dst_arg"
- shift # fnord
- fi
- shift # arg
- dst_arg=$arg
- # Protect names problematic for 'test' and other utilities.
- case $dst_arg in
- -* | [=\(\)!]) dst_arg=./$dst_arg;;
- esac
- done
-fi
-
-if test $# -eq 0; then
- if test -z "$dir_arg"; then
- echo "$0: no input file specified." >&2
- exit 1
- fi
- # It's OK to call 'install-sh -d' without argument.
- # This can happen when creating conditional directories.
- exit 0
-fi
-
-if test -z "$dir_arg"; then
- if test $# -gt 1 || test "$is_target_a_directory" = always; then
- if test ! -d "$dst_arg"; then
- echo "$0: $dst_arg: Is not a directory." >&2
- exit 1
- fi
- fi
-fi
-
-if test -z "$dir_arg"; then
- do_exit='(exit $ret); exit $ret'
- trap "ret=129; $do_exit" 1
- trap "ret=130; $do_exit" 2
- trap "ret=141; $do_exit" 13
- trap "ret=143; $do_exit" 15
-
- # Set umask so as not to create temps with too-generous modes.
- # However, 'strip' requires both read and write access to temps.
- case $mode in
- # Optimize common cases.
- *644) cp_umask=133;;
- *755) cp_umask=22;;
-
- *[0-7])
- if test -z "$stripcmd"; then
- u_plus_rw=
- else
- u_plus_rw='% 200'
- fi
- cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
- *)
- if test -z "$stripcmd"; then
- u_plus_rw=
- else
- u_plus_rw=,u+rw
- fi
- cp_umask=$mode$u_plus_rw;;
- esac
-fi
-
-for src
-do
- # Protect names problematic for 'test' and other utilities.
- case $src in
- -* | [=\(\)!]) src=./$src;;
- esac
-
- if test -n "$dir_arg"; then
- dst=$src
- dstdir=$dst
- test -d "$dstdir"
- dstdir_status=$?
- else
-
- # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
- # might cause directories to be created, which would be especially bad
- # if $src (and thus $dsttmp) contains '*'.
- if test ! -f "$src" && test ! -d "$src"; then
- echo "$0: $src does not exist." >&2
- exit 1
- fi
-
- if test -z "$dst_arg"; then
- echo "$0: no destination specified." >&2
- exit 1
- fi
- dst=$dst_arg
-
- # If destination is a directory, append the input filename.
- if test -d "$dst"; then
- if test "$is_target_a_directory" = never; then
- echo "$0: $dst_arg: Is a directory" >&2
- exit 1
- fi
- dstdir=$dst
- dstbase=`basename "$src"`
- case $dst in
- */) dst=$dst$dstbase;;
- *) dst=$dst/$dstbase;;
- esac
- dstdir_status=0
- else
- dstdir=`dirname "$dst"`
- test -d "$dstdir"
- dstdir_status=$?
- fi
- fi
-
- case $dstdir in
- */) dstdirslash=$dstdir;;
- *) dstdirslash=$dstdir/;;
- esac
-
- obsolete_mkdir_used=false
-
- if test $dstdir_status != 0; then
- case $posix_mkdir in
- '')
- # Create intermediate dirs using mode 755 as modified by the umask.
- # This is like FreeBSD 'install' as of 1997-10-28.
- umask=`umask`
- case $stripcmd.$umask in
- # Optimize common cases.
- *[2367][2367]) mkdir_umask=$umask;;
- .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
-
- *[0-7])
- mkdir_umask=`expr $umask + 22 \
- - $umask % 100 % 40 + $umask % 20 \
- - $umask % 10 % 4 + $umask % 2
- `;;
- *) mkdir_umask=$umask,go-w;;
- esac
-
- # With -d, create the new directory with the user-specified mode.
- # Otherwise, rely on $mkdir_umask.
- if test -n "$dir_arg"; then
- mkdir_mode=-m$mode
- else
- mkdir_mode=
- fi
-
- posix_mkdir=false
- case $umask in
- *[123567][0-7][0-7])
- # POSIX mkdir -p sets u+wx bits regardless of umask, which
- # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
- ;;
- *)
- # Note that $RANDOM variable is not portable (e.g. dash); Use it
- # here however when possible just to lower collision chance.
- tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
-
- trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0
-
- # Because "mkdir -p" follows existing symlinks and we likely work
- # directly in world-writeable /tmp, make sure that the '$tmpdir'
- # directory is successfully created first before we actually test
- # 'mkdir -p' feature.
- if (umask $mkdir_umask &&
- $mkdirprog $mkdir_mode "$tmpdir" &&
- exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
- then
- if test -z "$dir_arg" || {
- # Check for POSIX incompatibilities with -m.
- # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
- # other-writable bit of parent directory when it shouldn't.
- # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
- test_tmpdir="$tmpdir/a"
- ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
- case $ls_ld_tmpdir in
- d????-?r-*) different_mode=700;;
- d????-?--*) different_mode=755;;
- *) false;;
- esac &&
- $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
- ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
- test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
- }
- }
- then posix_mkdir=:
- fi
- rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
- else
- # Remove any dirs left behind by ancient mkdir implementations.
- rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
- fi
- trap '' 0;;
- esac;;
- esac
-
- if
- $posix_mkdir && (
- umask $mkdir_umask &&
- $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
- )
- then :
- else
-
- # The umask is ridiculous, or mkdir does not conform to POSIX,
- # or it failed possibly due to a race condition. Create the
- # directory the slow way, step by step, checking for races as we go.
-
- case $dstdir in
- /*) prefix='/';;
- [-=\(\)!]*) prefix='./';;
- *) prefix='';;
- esac
-
- oIFS=$IFS
- IFS=/
- set -f
- set fnord $dstdir
- shift
- set +f
- IFS=$oIFS
-
- prefixes=
-
- for d
- do
- test X"$d" = X && continue
-
- prefix=$prefix$d
- if test -d "$prefix"; then
- prefixes=
- else
- if $posix_mkdir; then
- (umask=$mkdir_umask &&
- $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
- # Don't fail if two instances are running concurrently.
- test -d "$prefix" || exit 1
- else
- case $prefix in
- *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
- *) qprefix=$prefix;;
- esac
- prefixes="$prefixes '$qprefix'"
- fi
- fi
- prefix=$prefix/
- done
-
- if test -n "$prefixes"; then
- # Don't fail if two instances are running concurrently.
- (umask $mkdir_umask &&
- eval "\$doit_exec \$mkdirprog $prefixes") ||
- test -d "$dstdir" || exit 1
- obsolete_mkdir_used=true
- fi
- fi
- fi
-
- if test -n "$dir_arg"; then
- { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
- { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
- { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
- test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
- else
-
- # Make a couple of temp file names in the proper directory.
- dsttmp=${dstdirslash}_inst.$$_
- rmtmp=${dstdirslash}_rm.$$_
-
- # Trap to clean up those temp files at exit.
- trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
-
- # Copy the file name to the temp name.
- (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
-
- # and set any options; do chmod last to preserve setuid bits.
- #
- # If any of these fail, we abort the whole thing. If we want to
- # ignore errors from any of these, just make sure not to ignore
- # errors from the above "$doit $cpprog $src $dsttmp" command.
- #
- { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
- { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
- { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
- { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
-
- # If -C, don't bother to copy if it wouldn't change the file.
- if $copy_on_change &&
- old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
- new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
- set -f &&
- set X $old && old=:$2:$4:$5:$6 &&
- set X $new && new=:$2:$4:$5:$6 &&
- set +f &&
- test "$old" = "$new" &&
- $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
- then
- rm -f "$dsttmp"
- else
- # Rename the file to the real destination.
- $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
-
- # The rename failed, perhaps because mv can't rename something else
- # to itself, or perhaps because mv is so ancient that it does not
- # support -f.
- {
- # Now remove or move aside any old file at destination location.
- # We try this two ways since rm can't unlink itself on some
- # systems and the destination file might be busy for other
- # reasons. In this case, the final cleanup might fail but the new
- # file should still install successfully.
- {
- test ! -f "$dst" ||
- $doit $rmcmd -f "$dst" 2>/dev/null ||
- { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
- { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
- } ||
- { echo "$0: cannot unlink or rename $dst" >&2
- (exit 1); exit 1
- }
- } &&
-
- # Now rename the file to the real destination.
- $doit $mvcmd "$dsttmp" "$dst"
- }
- fi || exit 1
-
- trap '' 0
- fi
-done
-
-# Local variables:
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
-# time-stamp-end: "; # UTC"
-# End:
diff --git a/3rdparty/libpng/libpng-1.6.37/intel/.deps/filter_sse2_intrinsics.Plo b/3rdparty/libpng/libpng-1.6.37/intel/.deps/filter_sse2_intrinsics.Plo
deleted file mode 100644
index 9ce06a8..0000000
--- a/3rdparty/libpng/libpng-1.6.37/intel/.deps/filter_sse2_intrinsics.Plo
+++ /dev/null
@@ -1 +0,0 @@
-# dummy
diff --git a/3rdparty/libpng/libpng-1.6.37/intel/.deps/intel_init.Plo b/3rdparty/libpng/libpng-1.6.37/intel/.deps/intel_init.Plo
deleted file mode 100644
index 9ce06a8..0000000
--- a/3rdparty/libpng/libpng-1.6.37/intel/.deps/intel_init.Plo
+++ /dev/null
@@ -1 +0,0 @@
-# dummy
diff --git a/3rdparty/libpng/libpng-1.6.37/intel/filter_sse2_intrinsics.c b/3rdparty/libpng/libpng-1.6.37/intel/filter_sse2_intrinsics.c
deleted file mode 100644
index f52aaa8..0000000
--- a/3rdparty/libpng/libpng-1.6.37/intel/filter_sse2_intrinsics.c
+++ /dev/null
@@ -1,391 +0,0 @@
-
-/* filter_sse2_intrinsics.c - SSE2 optimized filter functions
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 2016-2017 Glenn Randers-Pehrson
- * Written by Mike Klein and Matt Sarett
- * Derived from arm/filter_neon_intrinsics.c
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#include "../pngpriv.h"
-
-#ifdef PNG_READ_SUPPORTED
-
-#if PNG_INTEL_SSE_IMPLEMENTATION > 0
-
-#include <immintrin.h>
-
-/* Functions in this file look at most 3 pixels (a,b,c) to predict the 4th (d).
- * They're positioned like this:
- * prev: c b
- * row: a d
- * The Sub filter predicts d=a, Avg d=(a+b)/2, and Paeth predicts d to be
- * whichever of a, b, or c is closest to p=a+b-c.
- */
-
-static __m128i load4(const void* p) {
- int tmp;
- memcpy(&tmp, p, sizeof(tmp));
- return _mm_cvtsi32_si128(tmp);
-}
-
-static void store4(void* p, __m128i v) {
- int tmp = _mm_cvtsi128_si32(v);
- memcpy(p, &tmp, sizeof(int));
-}
-
-static __m128i load3(const void* p) {
- png_uint_32 tmp = 0;
- memcpy(&tmp, p, 3);
- return _mm_cvtsi32_si128(tmp);
-}
-
-static void store3(void* p, __m128i v) {
- int tmp = _mm_cvtsi128_si32(v);
- memcpy(p, &tmp, 3);
-}
-
-void png_read_filter_row_sub3_sse2(png_row_infop row_info, png_bytep row,
- png_const_bytep prev)
-{
- /* The Sub filter predicts each pixel as the previous pixel, a.
- * There is no pixel to the left of the first pixel. It's encoded directly.
- * That works with our main loop if we just say that left pixel was zero.
- */
- size_t rb;
-
- __m128i a, d = _mm_setzero_si128();
-
- png_debug(1, "in png_read_filter_row_sub3_sse2");
-
- rb = row_info->rowbytes;
- while (rb >= 4) {
- a = d; d = load4(row);
- d = _mm_add_epi8(d, a);
- store3(row, d);
-
- row += 3;
- rb -= 3;
- }
- if (rb > 0) {
- a = d; d = load3(row);
- d = _mm_add_epi8(d, a);
- store3(row, d);
-
- row += 3;
- rb -= 3;
- }
- PNG_UNUSED(prev)
-}
-
-void png_read_filter_row_sub4_sse2(png_row_infop row_info, png_bytep row,
- png_const_bytep prev)
-{
- /* The Sub filter predicts each pixel as the previous pixel, a.
- * There is no pixel to the left of the first pixel. It's encoded directly.
- * That works with our main loop if we just say that left pixel was zero.
- */
- size_t rb;
-
- __m128i a, d = _mm_setzero_si128();
-
- png_debug(1, "in png_read_filter_row_sub4_sse2");
-
- rb = row_info->rowbytes+4;
- while (rb > 4) {
- a = d; d = load4(row);
- d = _mm_add_epi8(d, a);
- store4(row, d);
-
- row += 4;
- rb -= 4;
- }
- PNG_UNUSED(prev)
-}
-
-void png_read_filter_row_avg3_sse2(png_row_infop row_info, png_bytep row,
- png_const_bytep prev)
-{
- /* The Avg filter predicts each pixel as the (truncated) average of a and b.
- * There's no pixel to the left of the first pixel. Luckily, it's
- * predicted to be half of the pixel above it. So again, this works
- * perfectly with our loop if we make sure a starts at zero.
- */
-
- size_t rb;
-
- const __m128i zero = _mm_setzero_si128();
-
- __m128i b;
- __m128i a, d = zero;
-
- png_debug(1, "in png_read_filter_row_avg3_sse2");
- rb = row_info->rowbytes;
- while (rb >= 4) {
- __m128i avg;
- b = load4(prev);
- a = d; d = load4(row );
-
- /* PNG requires a truncating average, so we can't just use _mm_avg_epu8 */
- avg = _mm_avg_epu8(a,b);
- /* ...but we can fix it up by subtracting off 1 if it rounded up. */
- avg = _mm_sub_epi8(avg, _mm_and_si128(_mm_xor_si128(a,b),
- _mm_set1_epi8(1)));
- d = _mm_add_epi8(d, avg);
- store3(row, d);
-
- prev += 3;
- row += 3;
- rb -= 3;
- }
- if (rb > 0) {
- __m128i avg;
- b = load3(prev);
- a = d; d = load3(row );
-
- /* PNG requires a truncating average, so we can't just use _mm_avg_epu8 */
- avg = _mm_avg_epu8(a,b);
- /* ...but we can fix it up by subtracting off 1 if it rounded up. */
- avg = _mm_sub_epi8(avg, _mm_and_si128(_mm_xor_si128(a,b),
- _mm_set1_epi8(1)));
-
- d = _mm_add_epi8(d, avg);
- store3(row, d);
-
- prev += 3;
- row += 3;
- rb -= 3;
- }
-}
-
-void png_read_filter_row_avg4_sse2(png_row_infop row_info, png_bytep row,
- png_const_bytep prev)
-{
- /* The Avg filter predicts each pixel as the (truncated) average of a and b.
- * There's no pixel to the left of the first pixel. Luckily, it's
- * predicted to be half of the pixel above it. So again, this works
- * perfectly with our loop if we make sure a starts at zero.
- */
- size_t rb;
- const __m128i zero = _mm_setzero_si128();
- __m128i b;
- __m128i a, d = zero;
-
- png_debug(1, "in png_read_filter_row_avg4_sse2");
-
- rb = row_info->rowbytes+4;
- while (rb > 4) {
- __m128i avg;
- b = load4(prev);
- a = d; d = load4(row );
-
- /* PNG requires a truncating average, so we can't just use _mm_avg_epu8 */
- avg = _mm_avg_epu8(a,b);
- /* ...but we can fix it up by subtracting off 1 if it rounded up. */
- avg = _mm_sub_epi8(avg, _mm_and_si128(_mm_xor_si128(a,b),
- _mm_set1_epi8(1)));
-
- d = _mm_add_epi8(d, avg);
- store4(row, d);
-
- prev += 4;
- row += 4;
- rb -= 4;
- }
-}
-
-/* Returns |x| for 16-bit lanes. */
-static __m128i abs_i16(__m128i x) {
-#if PNG_INTEL_SSE_IMPLEMENTATION >= 2
- return _mm_abs_epi16(x);
-#else
- /* Read this all as, return x<0 ? -x : x.
- * To negate two's complement, you flip all the bits then add 1.
- */
- __m128i is_negative = _mm_cmplt_epi16(x, _mm_setzero_si128());
-
- /* Flip negative lanes. */
- x = _mm_xor_si128(x, is_negative);
-
- /* +1 to negative lanes, else +0. */
- x = _mm_sub_epi16(x, is_negative);
- return x;
-#endif
-}
-
-/* Bytewise c ? t : e. */
-static __m128i if_then_else(__m128i c, __m128i t, __m128i e) {
-#if PNG_INTEL_SSE_IMPLEMENTATION >= 3
- return _mm_blendv_epi8(e,t,c);
-#else
- return _mm_or_si128(_mm_and_si128(c, t), _mm_andnot_si128(c, e));
-#endif
-}
-
-void png_read_filter_row_paeth3_sse2(png_row_infop row_info, png_bytep row,
- png_const_bytep prev)
-{
- /* Paeth tries to predict pixel d using the pixel to the left of it, a,
- * and two pixels from the previous row, b and c:
- * prev: c b
- * row: a d
- * The Paeth function predicts d to be whichever of a, b, or c is nearest to
- * p=a+b-c.
- *
- * The first pixel has no left context, and so uses an Up filter, p = b.
- * This works naturally with our main loop's p = a+b-c if we force a and c
- * to zero.
- * Here we zero b and d, which become c and a respectively at the start of
- * the loop.
- */
- size_t rb;
- const __m128i zero = _mm_setzero_si128();
- __m128i c, b = zero,
- a, d = zero;
-
- png_debug(1, "in png_read_filter_row_paeth3_sse2");
-
- rb = row_info->rowbytes;
- while (rb >= 4) {
- /* It's easiest to do this math (particularly, deal with pc) with 16-bit
- * intermediates.
- */
- __m128i pa,pb,pc,smallest,nearest;
- c = b; b = _mm_unpacklo_epi8(load4(prev), zero);
- a = d; d = _mm_unpacklo_epi8(load4(row ), zero);
-
- /* (p-a) == (a+b-c - a) == (b-c) */
-
- pa = _mm_sub_epi16(b,c);
-
- /* (p-b) == (a+b-c - b) == (a-c) */
- pb = _mm_sub_epi16(a,c);
-
- /* (p-c) == (a+b-c - c) == (a+b-c-c) == (b-c)+(a-c) */
- pc = _mm_add_epi16(pa,pb);
-
- pa = abs_i16(pa); /* |p-a| */
- pb = abs_i16(pb); /* |p-b| */
- pc = abs_i16(pc); /* |p-c| */
-
- smallest = _mm_min_epi16(pc, _mm_min_epi16(pa, pb));
-
- /* Paeth breaks ties favoring a over b over c. */
- nearest = if_then_else(_mm_cmpeq_epi16(smallest, pa), a,
- if_then_else(_mm_cmpeq_epi16(smallest, pb), b,
- c));
-
- /* Note `_epi8`: we need addition to wrap modulo 255. */
- d = _mm_add_epi8(d, nearest);
- store3(row, _mm_packus_epi16(d,d));
-
- prev += 3;
- row += 3;
- rb -= 3;
- }
- if (rb > 0) {
- /* It's easiest to do this math (particularly, deal with pc) with 16-bit
- * intermediates.
- */
- __m128i pa,pb,pc,smallest,nearest;
- c = b; b = _mm_unpacklo_epi8(load3(prev), zero);
- a = d; d = _mm_unpacklo_epi8(load3(row ), zero);
-
- /* (p-a) == (a+b-c - a) == (b-c) */
- pa = _mm_sub_epi16(b,c);
-
- /* (p-b) == (a+b-c - b) == (a-c) */
- pb = _mm_sub_epi16(a,c);
-
- /* (p-c) == (a+b-c - c) == (a+b-c-c) == (b-c)+(a-c) */
- pc = _mm_add_epi16(pa,pb);
-
- pa = abs_i16(pa); /* |p-a| */
- pb = abs_i16(pb); /* |p-b| */
- pc = abs_i16(pc); /* |p-c| */
-
- smallest = _mm_min_epi16(pc, _mm_min_epi16(pa, pb));
-
- /* Paeth breaks ties favoring a over b over c. */
- nearest = if_then_else(_mm_cmpeq_epi16(smallest, pa), a,
- if_then_else(_mm_cmpeq_epi16(smallest, pb), b,
- c));
-
- /* Note `_epi8`: we need addition to wrap modulo 255. */
- d = _mm_add_epi8(d, nearest);
- store3(row, _mm_packus_epi16(d,d));
-
- prev += 3;
- row += 3;
- rb -= 3;
- }
-}
-
-void png_read_filter_row_paeth4_sse2(png_row_infop row_info, png_bytep row,
- png_const_bytep prev)
-{
- /* Paeth tries to predict pixel d using the pixel to the left of it, a,
- * and two pixels from the previous row, b and c:
- * prev: c b
- * row: a d
- * The Paeth function predicts d to be whichever of a, b, or c is nearest to
- * p=a+b-c.
- *
- * The first pixel has no left context, and so uses an Up filter, p = b.
- * This works naturally with our main loop's p = a+b-c if we force a and c
- * to zero.
- * Here we zero b and d, which become c and a respectively at the start of
- * the loop.
- */
- size_t rb;
- const __m128i zero = _mm_setzero_si128();
- __m128i pa,pb,pc,smallest,nearest;
- __m128i c, b = zero,
- a, d = zero;
-
- png_debug(1, "in png_read_filter_row_paeth4_sse2");
-
- rb = row_info->rowbytes+4;
- while (rb > 4) {
- /* It's easiest to do this math (particularly, deal with pc) with 16-bit
- * intermediates.
- */
- c = b; b = _mm_unpacklo_epi8(load4(prev), zero);
- a = d; d = _mm_unpacklo_epi8(load4(row ), zero);
-
- /* (p-a) == (a+b-c - a) == (b-c) */
- pa = _mm_sub_epi16(b,c);
-
- /* (p-b) == (a+b-c - b) == (a-c) */
- pb = _mm_sub_epi16(a,c);
-
- /* (p-c) == (a+b-c - c) == (a+b-c-c) == (b-c)+(a-c) */
- pc = _mm_add_epi16(pa,pb);
-
- pa = abs_i16(pa); /* |p-a| */
- pb = abs_i16(pb); /* |p-b| */
- pc = abs_i16(pc); /* |p-c| */
-
- smallest = _mm_min_epi16(pc, _mm_min_epi16(pa, pb));
-
- /* Paeth breaks ties favoring a over b over c. */
- nearest = if_then_else(_mm_cmpeq_epi16(smallest, pa), a,
- if_then_else(_mm_cmpeq_epi16(smallest, pb), b,
- c));
-
- /* Note `_epi8`: we need addition to wrap modulo 255. */
- d = _mm_add_epi8(d, nearest);
- store4(row, _mm_packus_epi16(d,d));
-
- prev += 4;
- row += 4;
- rb -= 4;
- }
-}
-
-#endif /* PNG_INTEL_SSE_IMPLEMENTATION > 0 */
-#endif /* READ */
diff --git a/3rdparty/libpng/libpng-1.6.37/intel/intel_init.c b/3rdparty/libpng/libpng-1.6.37/intel/intel_init.c
deleted file mode 100644
index 2f8168b..0000000
--- a/3rdparty/libpng/libpng-1.6.37/intel/intel_init.c
+++ /dev/null
@@ -1,52 +0,0 @@
-
-/* intel_init.c - SSE2 optimized filter functions
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 2016-2017 Glenn Randers-Pehrson
- * Written by Mike Klein and Matt Sarett, Google, Inc.
- * Derived from arm/arm_init.c
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#include "../pngpriv.h"
-
-#ifdef PNG_READ_SUPPORTED
-#if PNG_INTEL_SSE_IMPLEMENTATION > 0
-
-void
-png_init_filter_functions_sse2(png_structp pp, unsigned int bpp)
-{
- /* The techniques used to implement each of these filters in SSE operate on
- * one pixel at a time.
- * So they generally speed up 3bpp images about 3x, 4bpp images about 4x.
- * They can scale up to 6 and 8 bpp images and down to 2 bpp images,
- * but they'd not likely have any benefit for 1bpp images.
- * Most of these can be implemented using only MMX and 64-bit registers,
- * but they end up a bit slower than using the equally-ubiquitous SSE2.
- */
- png_debug(1, "in png_init_filter_functions_sse2");
- if (bpp == 3)
- {
- pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub3_sse2;
- pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg3_sse2;
- pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
- png_read_filter_row_paeth3_sse2;
- }
- else if (bpp == 4)
- {
- pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub4_sse2;
- pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg4_sse2;
- pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
- png_read_filter_row_paeth4_sse2;
- }
-
- /* No need optimize PNG_FILTER_VALUE_UP. The compiler should
- * autovectorize.
- */
-}
-
-#endif /* PNG_INTEL_SSE_IMPLEMENTATION > 0 */
-#endif /* PNG_READ_SUPPORTED */
diff --git a/3rdparty/libpng/libpng-1.6.37/libpng-config b/3rdparty/libpng/libpng-1.6.37/libpng-config
deleted file mode 100755
index 20f54fa..0000000
--- a/3rdparty/libpng/libpng-1.6.37/libpng-config
+++ /dev/null
@@ -1,127 +0,0 @@
-#! /bin/sh
-
-# libpng-config
-# provides configuration info for libpng.
-
-# Copyright (C) 2002, 2004, 2006, 2007 Glenn Randers-Pehrson
-
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Modeled after libxml-config.
-
-version="1.6.37"
-prefix="/home/guowenxue/fl2440/3rdparty/libpng/../install"
-exec_prefix="${prefix}"
-libdir="${exec_prefix}/lib"
-includedir="${prefix}/include/libpng16"
-libs="-lpng16"
-all_libs="-lpng16 -lm -lz -lm "
-I_opts="-I${includedir}"
-L_opts="-L${libdir}"
-R_opts=""
-cppflags=""
-ccopts=""
-ldopts=""
-
-usage()
-{
- cat <<EOF
-Usage: $0 [OPTION] ...
-
-Known values for OPTION are:
-
- --prefix print libpng prefix
- --libdir print path to directory containing library
- --libs print library linking information
- --ccopts print compiler options
- --cppflags print pre-processor flags
- --cflags print preprocessor flags, I_opts, and compiler options
- --I_opts print "-I" include options
- --L_opts print linker "-L" flags for dynamic linking
- --R_opts print dynamic linker "-R" or "-rpath" flags
- --ldopts print linker options
- --ldflags print linker flags (ldopts, L_opts, R_opts, and libs)
- --static revise subsequent outputs for static linking
- --help print this help and exit
- --version print version information
-EOF
-
- exit $1
-}
-
-if test $# -eq 0; then
- usage 1
-fi
-
-while test $# -gt 0; do
- case "$1" in
-
- --prefix)
- echo ${prefix}
- ;;
-
- --version)
- echo ${version}
- exit 0
- ;;
-
- --help)
- usage 0
- ;;
-
- --ccopts)
- echo ${ccopts}
- ;;
-
- --cppflags)
- echo ${cppflags}
- ;;
-
- --cflags)
- echo ${I_opts} ${cppflags} ${ccopts}
- ;;
-
- --libdir)
- echo ${libdir}
- ;;
-
- --libs)
- echo ${libs}
- ;;
-
- --I_opts)
- echo ${I_opts}
- ;;
-
- --L_opts)
- echo ${L_opts}
- ;;
-
- --R_opts)
- echo ${R_opts}
- ;;
-
- --ldopts)
- echo ${ldopts}
- ;;
-
- --ldflags)
- echo ${ldopts} ${L_opts} ${R_opts} ${libs}
- ;;
-
- --static)
- R_opts=""
- libs=${all_libs}
- ;;
-
- *)
- usage
- exit 1
- ;;
- esac
- shift
-done
-
-exit 0
diff --git a/3rdparty/libpng/libpng-1.6.37/libpng-config.in b/3rdparty/libpng/libpng-1.6.37/libpng-config.in
deleted file mode 100644
index 69bf8e3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/libpng-config.in
+++ /dev/null
@@ -1,127 +0,0 @@
-#! /bin/sh
-
-# libpng-config
-# provides configuration info for libpng.
-
-# Copyright (C) 2002, 2004, 2006, 2007 Glenn Randers-Pehrson
-
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Modeled after libxml-config.
-
-version="@PNGLIB_VERSION@"
-prefix="@prefix@"
-exec_prefix="@exec_prefix@"
-libdir="@libdir@"
-includedir="@includedir@/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@"
-libs="-lpng@PNGLIB_MAJOR@@PNGLIB_MINOR@"
-all_libs="-lpng@PNGLIB_MAJOR@@PNGLIB_MINOR@ @LIBS@"
-I_opts="-I${includedir}"
-L_opts="-L${libdir}"
-R_opts=""
-cppflags=""
-ccopts=""
-ldopts=""
-
-usage()
-{
- cat <<EOF
-Usage: $0 [OPTION] ...
-
-Known values for OPTION are:
-
- --prefix print libpng prefix
- --libdir print path to directory containing library
- --libs print library linking information
- --ccopts print compiler options
- --cppflags print pre-processor flags
- --cflags print preprocessor flags, I_opts, and compiler options
- --I_opts print "-I" include options
- --L_opts print linker "-L" flags for dynamic linking
- --R_opts print dynamic linker "-R" or "-rpath" flags
- --ldopts print linker options
- --ldflags print linker flags (ldopts, L_opts, R_opts, and libs)
- --static revise subsequent outputs for static linking
- --help print this help and exit
- --version print version information
-EOF
-
- exit $1
-}
-
-if test $# -eq 0; then
- usage 1
-fi
-
-while test $# -gt 0; do
- case "$1" in
-
- --prefix)
- echo ${prefix}
- ;;
-
- --version)
- echo ${version}
- exit 0
- ;;
-
- --help)
- usage 0
- ;;
-
- --ccopts)
- echo ${ccopts}
- ;;
-
- --cppflags)
- echo ${cppflags}
- ;;
-
- --cflags)
- echo ${I_opts} ${cppflags} ${ccopts}
- ;;
-
- --libdir)
- echo ${libdir}
- ;;
-
- --libs)
- echo ${libs}
- ;;
-
- --I_opts)
- echo ${I_opts}
- ;;
-
- --L_opts)
- echo ${L_opts}
- ;;
-
- --R_opts)
- echo ${R_opts}
- ;;
-
- --ldopts)
- echo ${ldopts}
- ;;
-
- --ldflags)
- echo ${ldopts} ${L_opts} ${R_opts} ${libs}
- ;;
-
- --static)
- R_opts=""
- libs=${all_libs}
- ;;
-
- *)
- usage
- exit 1
- ;;
- esac
- shift
-done
-
-exit 0
diff --git a/3rdparty/libpng/libpng-1.6.37/libpng-manual.txt b/3rdparty/libpng/libpng-1.6.37/libpng-manual.txt
deleted file mode 100644
index 5dad92f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/libpng-manual.txt
+++ /dev/null
@@ -1,5409 +0,0 @@
-libpng-manual.txt - A description on how to use and modify libpng
-
- Copyright (c) 2018-2019 Cosmin Truta
- Copyright (c) 1998-2018 Glenn Randers-Pehrson
-
- This document is released under the libpng license.
- For conditions of distribution and use, see the disclaimer
- and license in png.h
-
- Based on:
-
- libpng version 1.6.36, December 2018, through 1.6.37 - April 2019
- Updated and distributed by Cosmin Truta
- Copyright (c) 2018-2019 Cosmin Truta
-
- libpng versions 0.97, January 1998, through 1.6.35 - July 2018
- Updated and distributed by Glenn Randers-Pehrson
- Copyright (c) 1998-2018 Glenn Randers-Pehrson
-
- libpng 1.0 beta 6 - version 0.96 - May 28, 1997
- Updated and distributed by Andreas Dilger
- Copyright (c) 1996, 1997 Andreas Dilger
-
- libpng 1.0 beta 2 - version 0.88 - January 26, 1996
- For conditions of distribution and use, see copyright
- notice in png.h. Copyright (c) 1995, 1996 Guy Eric
- Schalnat, Group 42, Inc.
-
- Updated/rewritten per request in the libpng FAQ
- Copyright (c) 1995, 1996 Frank J. T. Wojcik
- December 18, 1995 & January 20, 1996
-
- TABLE OF CONTENTS
-
- I. Introduction
- II. Structures
- III. Reading
- IV. Writing
- V. Simplified API
- VI. Modifying/Customizing libpng
- VII. MNG support
- VIII. Changes to Libpng from version 0.88
- IX. Changes to Libpng from version 1.0.x to 1.2.x
- X. Changes to Libpng from version 1.0.x/1.2.x to 1.4.x
- XI. Changes to Libpng from version 1.4.x to 1.5.x
- XII. Changes to Libpng from version 1.5.x to 1.6.x
- XIII. Detecting libpng
- XIV. Source code repository
- XV. Coding style
-
-I. Introduction
-
-This file describes how to use and modify the PNG reference library
-(known as libpng) for your own use. In addition to this
-file, example.c is a good starting point for using the library, as
-it is heavily commented and should include everything most people
-will need. We assume that libpng is already installed; see the
-INSTALL file for instructions on how to configure and install libpng.
-
-For examples of libpng usage, see the files "example.c", "pngtest.c",
-and the files in the "contrib" directory, all of which are included in
-the libpng distribution.
-
-Libpng was written as a companion to the PNG specification, as a way
-of reducing the amount of time and effort it takes to support the PNG
-file format in application programs.
-
-The PNG specification (second edition), November 2003, is available as
-a W3C Recommendation and as an ISO Standard (ISO/IEC 15948:2004 (E)) at
-<https://www.w3.org/TR/2003/REC-PNG-20031110/>.
-The W3C and ISO documents have identical technical content.
-
-The PNG-1.2 specification is available at
-<https://png-mng.sourceforge.io/pub/png/spec/1.2/>.
-It is technically equivalent
-to the PNG specification (second edition) but has some additional material.
-
-The PNG-1.0 specification is available as RFC 2083 at
-<https://png-mng.sourceforge.io/pub/png/spec/1.0/> and as a
-W3C Recommendation at <https://www.w3.org/TR/REC-png-961001>.
-
-Some additional chunks are described in the special-purpose public chunks
-documents at <http://www.libpng.org/pub/png/spec/register/>
-
-Other information
-about PNG, and the latest version of libpng, can be found at the PNG home
-page, <http://www.libpng.org/pub/png/>.
-
-Most users will not have to modify the library significantly; advanced
-users may want to modify it more. All attempts were made to make it as
-complete as possible, while keeping the code easy to understand.
-Currently, this library only supports C. Support for other languages
-is being considered.
-
-Libpng has been designed to handle multiple sessions at one time,
-to be easily modifiable, to be portable to the vast majority of
-machines (ANSI, K&R, 16-, 32-, and 64-bit) available, and to be easy
-to use. The ultimate goal of libpng is to promote the acceptance of
-the PNG file format in whatever way possible. While there is still
-work to be done (see the TODO file), libpng should cover the
-majority of the needs of its users.
-
-Libpng uses zlib for its compression and decompression of PNG files.
-Further information about zlib, and the latest version of zlib, can
-be found at the zlib home page, <https://zlib.net/>.
-The zlib compression utility is a general purpose utility that is
-useful for more than PNG files, and can be used without libpng.
-See the documentation delivered with zlib for more details.
-You can usually find the source files for the zlib utility wherever you
-find the libpng source files.
-
-Libpng is thread safe, provided the threads are using different
-instances of the structures. Each thread should have its own
-png_struct and png_info instances, and thus its own image.
-Libpng does not protect itself against two threads using the
-same instance of a structure.
-
-II. Structures
-
-There are two main structures that are important to libpng, png_struct
-and png_info. Both are internal structures that are no longer exposed
-in the libpng interface (as of libpng 1.5.0).
-
-The png_info structure is designed to provide information about the
-PNG file. At one time, the fields of png_info were intended to be
-directly accessible to the user. However, this tended to cause problems
-with applications using dynamically loaded libraries, and as a result
-a set of interface functions for png_info (the png_get_*() and png_set_*()
-functions) was developed, and direct access to the png_info fields was
-deprecated..
-
-The png_struct structure is the object used by the library to decode a
-single image. As of 1.5.0 this structure is also not exposed.
-
-Almost all libpng APIs require a pointer to a png_struct as the first argument.
-Many (in particular the png_set and png_get APIs) also require a pointer
-to png_info as the second argument. Some application visible macros
-defined in png.h designed for basic data access (reading and writing
-integers in the PNG format) don't take a png_info pointer, but it's almost
-always safe to assume that a (png_struct*) has to be passed to call an API
-function.
-
-You can have more than one png_info structure associated with an image,
-as illustrated in pngtest.c, one for information valid prior to the
-IDAT chunks and another (called "end_info" below) for things after them.
-
-The png.h header file is an invaluable reference for programming with libpng.
-And while I'm on the topic, make sure you include the libpng header file:
-
-#include <png.h>
-
-and also (as of libpng-1.5.0) the zlib header file, if you need it:
-
-#include <zlib.h>
-
-Types
-
-The png.h header file defines a number of integral types used by the
-APIs. Most of these are fairly obvious; for example types corresponding
-to integers of particular sizes and types for passing color values.
-
-One exception is how non-integral numbers are handled. For application
-convenience most APIs that take such numbers have C (double) arguments;
-however, internally PNG, and libpng, use 32 bit signed integers and encode
-the value by multiplying by 100,000. As of libpng 1.5.0 a convenience
-macro PNG_FP_1 is defined in png.h along with a type (png_fixed_point)
-which is simply (png_int_32).
-
-All APIs that take (double) arguments also have a matching API that
-takes the corresponding fixed point integer arguments. The fixed point
-API has the same name as the floating point one with "_fixed" appended.
-The actual range of values permitted in the APIs is frequently less than
-the full range of (png_fixed_point) (-21474 to +21474). When APIs require
-a non-negative argument the type is recorded as png_uint_32 above. Consult
-the header file and the text below for more information.
-
-Special care must be take with sCAL chunk handling because the chunk itself
-uses non-integral values encoded as strings containing decimal floating point
-numbers. See the comments in the header file.
-
-Configuration
-
-The main header file function declarations are frequently protected by C
-preprocessing directives of the form:
-
- #ifdef PNG_feature_SUPPORTED
- declare-function
- #endif
- ...
- #ifdef PNG_feature_SUPPORTED
- use-function
- #endif
-
-The library can be built without support for these APIs, although a
-standard build will have all implemented APIs. Application programs
-should check the feature macros before using an API for maximum
-portability. From libpng 1.5.0 the feature macros set during the build
-of libpng are recorded in the header file "pnglibconf.h" and this file
-is always included by png.h.
-
-If you don't need to change the library configuration from the default, skip to
-the next section ("Reading").
-
-Notice that some of the makefiles in the 'scripts' directory and (in 1.5.0) all
-of the build project files in the 'projects' directory simply copy
-scripts/pnglibconf.h.prebuilt to pnglibconf.h. This means that these build
-systems do not permit easy auto-configuration of the library - they only
-support the default configuration.
-
-The easiest way to make minor changes to the libpng configuration when
-auto-configuration is supported is to add definitions to the command line
-using (typically) CPPFLAGS. For example:
-
-CPPFLAGS=-DPNG_NO_FLOATING_ARITHMETIC
-
-will change the internal libpng math implementation for gamma correction and
-other arithmetic calculations to fixed point, avoiding the need for fast
-floating point support. The result can be seen in the generated pnglibconf.h -
-make sure it contains the changed feature macro setting.
-
-If you need to make more extensive configuration changes - more than one or two
-feature macro settings - you can either add -DPNG_USER_CONFIG to the build
-command line and put a list of feature macro settings in pngusr.h or you can set
-DFA_XTRA (a makefile variable) to a file containing the same information in the
-form of 'option' settings.
-
-A. Changing pnglibconf.h
-
-A variety of methods exist to build libpng. Not all of these support
-reconfiguration of pnglibconf.h. To reconfigure pnglibconf.h it must either be
-rebuilt from scripts/pnglibconf.dfa using awk or it must be edited by hand.
-
-Hand editing is achieved by copying scripts/pnglibconf.h.prebuilt to
-pnglibconf.h and changing the lines defining the supported features, paying
-very close attention to the 'option' information in scripts/pnglibconf.dfa
-that describes those features and their requirements. This is easy to get
-wrong.
-
-B. Configuration using DFA_XTRA
-
-Rebuilding from pnglibconf.dfa is easy if a functioning 'awk', or a later
-variant such as 'nawk' or 'gawk', is available. The configure build will
-automatically find an appropriate awk and build pnglibconf.h.
-The scripts/pnglibconf.mak file contains a set of make rules for doing the
-same thing if configure is not used, and many of the makefiles in the scripts
-directory use this approach.
-
-When rebuilding simply write a new file containing changed options and set
-DFA_XTRA to the name of this file. This causes the build to append the new file
-to the end of scripts/pnglibconf.dfa. The pngusr.dfa file should contain lines
-of the following forms:
-
-everything = off
-
-This turns all optional features off. Include it at the start of pngusr.dfa to
-make it easier to build a minimal configuration. You will need to turn at least
-some features on afterward to enable either reading or writing code, or both.
-
-option feature on
-option feature off
-
-Enable or disable a single feature. This will automatically enable other
-features required by a feature that is turned on or disable other features that
-require a feature which is turned off. Conflicting settings will cause an error
-message to be emitted by awk.
-
-setting feature default value
-
-Changes the default value of setting 'feature' to 'value'. There are a small
-number of settings listed at the top of pnglibconf.h, they are documented in the
-source code. Most of these values have performance implications for the library
-but most of them have no visible effect on the API. Some can also be overridden
-from the API.
-
-This method of building a customized pnglibconf.h is illustrated in
-contrib/pngminim/*. See the "$(PNGCONF):" target in the makefile and
-pngusr.dfa in these directories.
-
-C. Configuration using PNG_USER_CONFIG
-
-If -DPNG_USER_CONFIG is added to the CPPFLAGS when pnglibconf.h is built,
-the file pngusr.h will automatically be included before the options in
-scripts/pnglibconf.dfa are processed. Your pngusr.h file should contain only
-macro definitions turning features on or off or setting settings.
-
-Apart from the global setting "everything = off" all the options listed above
-can be set using macros in pngusr.h:
-
-#define PNG_feature_SUPPORTED
-
-is equivalent to:
-
-option feature on
-
-#define PNG_NO_feature
-
-is equivalent to:
-
-option feature off
-
-#define PNG_feature value
-
-is equivalent to:
-
-setting feature default value
-
-Notice that in both cases, pngusr.dfa and pngusr.h, the contents of the
-pngusr file you supply override the contents of scripts/pnglibconf.dfa
-
-If confusing or incomprehensible behavior results it is possible to
-examine the intermediate file pnglibconf.dfn to find the full set of
-dependency information for each setting and option. Simply locate the
-feature in the file and read the C comments that precede it.
-
-This method is also illustrated in the contrib/pngminim/* makefiles and
-pngusr.h.
-
-III. Reading
-
-We'll now walk you through the possible functions to call when reading
-in a PNG file sequentially, briefly explaining the syntax and purpose
-of each one. See example.c and png.h for more detail. While
-progressive reading is covered in the next section, you will still
-need some of the functions discussed in this section to read a PNG
-file.
-
-Setup
-
-You will want to do the I/O initialization(*) before you get into libpng,
-so if it doesn't work, you don't have much to undo. Of course, you
-will also want to insure that you are, in fact, dealing with a PNG
-file. Libpng provides a simple check to see if a file is a PNG file.
-To use it, pass in the first 1 to 8 bytes of the file to the function
-png_sig_cmp(), and it will return 0 (false) if the bytes match the
-corresponding bytes of the PNG signature, or nonzero (true) otherwise.
-Of course, the more bytes you pass in, the greater the accuracy of the
-prediction.
-
-If you are intending to keep the file pointer open for use in libpng,
-you must ensure you don't read more than 8 bytes from the beginning
-of the file, and you also have to make a call to png_set_sig_bytes()
-with the number of bytes you read from the beginning. Libpng will
-then only check the bytes (if any) that your program didn't read.
-
-(*): If you are not using the standard I/O functions, you will need
-to replace them with custom functions. See the discussion under
-Customizing libpng.
-
- FILE *fp = fopen(file_name, "rb");
- if (!fp)
- {
- return ERROR;
- }
-
- if (fread(header, 1, number, fp) != number)
- {
- return ERROR;
- }
-
- is_png = !png_sig_cmp(header, 0, number);
- if (!is_png)
- {
- return NOT_PNG;
- }
-
-Next, png_struct and png_info need to be allocated and initialized. In
-order to ensure that the size of these structures is correct even with a
-dynamically linked libpng, there are functions to initialize and
-allocate the structures. We also pass the library version, optional
-pointers to error handling functions, and a pointer to a data struct for
-use by the error functions, if necessary (the pointer and functions can
-be NULL if the default error handlers are to be used). See the section
-on Changes to Libpng below regarding the old initialization functions.
-The structure allocation functions quietly return NULL if they fail to
-create the structure, so your application should check for that.
-
- png_structp png_ptr = png_create_read_struct
- (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr,
- user_error_fn, user_warning_fn);
-
- if (!png_ptr)
- return ERROR;
-
- png_infop info_ptr = png_create_info_struct(png_ptr);
-
- if (!info_ptr)
- {
- png_destroy_read_struct(&png_ptr,
- (png_infopp)NULL, (png_infopp)NULL);
- return ERROR;
- }
-
-If you want to use your own memory allocation routines,
-use a libpng that was built with PNG_USER_MEM_SUPPORTED defined, and use
-png_create_read_struct_2() instead of png_create_read_struct():
-
- png_structp png_ptr = png_create_read_struct_2
- (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr,
- user_error_fn, user_warning_fn, (png_voidp)
- user_mem_ptr, user_malloc_fn, user_free_fn);
-
-The error handling routines passed to png_create_read_struct()
-and the memory alloc/free routines passed to png_create_struct_2()
-are only necessary if you are not using the libpng supplied error
-handling and memory alloc/free functions.
-
-When libpng encounters an error, it expects to longjmp back
-to your routine. Therefore, you will need to call setjmp and pass
-your png_jmpbuf(png_ptr). If you read the file from different
-routines, you will need to update the longjmp buffer every time you enter
-a new routine that will call a png_*() function.
-
-See your documentation of setjmp/longjmp for your compiler for more
-information on setjmp/longjmp. See the discussion on libpng error
-handling in the Customizing Libpng section below for more information
-on the libpng error handling. If an error occurs, and libpng longjmp's
-back to your setjmp, you will want to call png_destroy_read_struct() to
-free any memory.
-
- if (setjmp(png_jmpbuf(png_ptr)))
- {
- png_destroy_read_struct(&png_ptr, &info_ptr,
- &end_info);
- fclose(fp);
- return ERROR;
- }
-
-Pass (png_infopp)NULL instead of &end_info if you didn't create
-an end_info structure.
-
-If you would rather avoid the complexity of setjmp/longjmp issues,
-you can compile libpng with PNG_NO_SETJMP, in which case
-errors will result in a call to PNG_ABORT() which defaults to abort().
-
-You can #define PNG_ABORT() to a function that does something
-more useful than abort(), as long as your function does not
-return.
-
-Now you need to set up the input code. The default for libpng is to
-use the C function fread(). If you use this, you will need to pass a
-valid FILE * in the function png_init_io(). Be sure that the file is
-opened in binary mode. If you wish to handle reading data in another
-way, you need not call the png_init_io() function, but you must then
-implement the libpng I/O methods discussed in the Customizing Libpng
-section below.
-
- png_init_io(png_ptr, fp);
-
-If you had previously opened the file and read any of the signature from
-the beginning in order to see if this was a PNG file, you need to let
-libpng know that there are some bytes missing from the start of the file.
-
- png_set_sig_bytes(png_ptr, number);
-
-You can change the zlib compression buffer size to be used while
-reading compressed data with
-
- png_set_compression_buffer_size(png_ptr, buffer_size);
-
-where the default size is 8192 bytes. Note that the buffer size
-is changed immediately and the buffer is reallocated immediately,
-instead of setting a flag to be acted upon later.
-
-If you want CRC errors to be handled in a different manner than
-the default, use
-
- png_set_crc_action(png_ptr, crit_action, ancil_action);
-
-The values for png_set_crc_action() say how libpng is to handle CRC errors in
-ancillary and critical chunks, and whether to use the data contained
-therein. Starting with libpng-1.6.26, this also governs how an ADLER32 error
-is handled while reading the IDAT chunk. Note that it is impossible to
-"discard" data in a critical chunk.
-
-Choices for (int) crit_action are
- PNG_CRC_DEFAULT 0 error/quit
- PNG_CRC_ERROR_QUIT 1 error/quit
- PNG_CRC_WARN_USE 3 warn/use data
- PNG_CRC_QUIET_USE 4 quiet/use data
- PNG_CRC_NO_CHANGE 5 use the current value
-
-Choices for (int) ancil_action are
- PNG_CRC_DEFAULT 0 error/quit
- PNG_CRC_ERROR_QUIT 1 error/quit
- PNG_CRC_WARN_DISCARD 2 warn/discard data
- PNG_CRC_WARN_USE 3 warn/use data
- PNG_CRC_QUIET_USE 4 quiet/use data
- PNG_CRC_NO_CHANGE 5 use the current value
-
-When the setting for crit_action is PNG_CRC_QUIET_USE, the CRC and ADLER32
-checksums are not only ignored, but they are not evaluated.
-
-Setting up callback code
-
-You can set up a callback function to handle any unknown chunks in the
-input stream. You must supply the function
-
- read_chunk_callback(png_structp png_ptr,
- png_unknown_chunkp chunk);
- {
- /* The unknown chunk structure contains your
- chunk data, along with similar data for any other
- unknown chunks: */
-
- png_byte name[5];
- png_byte *data;
- size_t size;
-
- /* Note that libpng has already taken care of
- the CRC handling */
-
- /* put your code here. Search for your chunk in the
- unknown chunk structure, process it, and return one
- of the following: */
-
- return -n; /* chunk had an error */
- return 0; /* did not recognize */
- return n; /* success */
- }
-
-(You can give your function another name that you like instead of
-"read_chunk_callback")
-
-To inform libpng about your function, use
-
- png_set_read_user_chunk_fn(png_ptr, user_chunk_ptr,
- read_chunk_callback);
-
-This names not only the callback function, but also a user pointer that
-you can retrieve with
-
- png_get_user_chunk_ptr(png_ptr);
-
-If you call the png_set_read_user_chunk_fn() function, then all unknown
-chunks which the callback does not handle will be saved when read. You can
-cause them to be discarded by returning '1' ("handled") instead of '0'. This
-behavior will change in libpng 1.7 and the default handling set by the
-png_set_keep_unknown_chunks() function, described below, will be used when the
-callback returns 0. If you want the existing behavior you should set the global
-default to PNG_HANDLE_CHUNK_IF_SAFE now; this is compatible with all current
-versions of libpng and with 1.7. Libpng 1.6 issues a warning if you keep the
-default, or PNG_HANDLE_CHUNK_NEVER, and the callback returns 0.
-
-At this point, you can set up a callback function that will be
-called after each row has been read, which you can use to control
-a progress meter or the like. It's demonstrated in pngtest.c.
-You must supply a function
-
- void read_row_callback(png_structp png_ptr,
- png_uint_32 row, int pass);
- {
- /* put your code here */
- }
-
-(You can give it another name that you like instead of "read_row_callback")
-
-To inform libpng about your function, use
-
- png_set_read_status_fn(png_ptr, read_row_callback);
-
-When this function is called the row has already been completely processed and
-the 'row' and 'pass' refer to the next row to be handled. For the
-non-interlaced case the row that was just handled is simply one less than the
-passed in row number, and pass will always be 0. For the interlaced case the
-same applies unless the row value is 0, in which case the row just handled was
-the last one from one of the preceding passes. Because interlacing may skip a
-pass you cannot be sure that the preceding pass is just 'pass-1'; if you really
-need to know what the last pass is record (row,pass) from the callback and use
-the last recorded value each time.
-
-As with the user transform you can find the output row using the
-PNG_ROW_FROM_PASS_ROW macro.
-
-Unknown-chunk handling
-
-Now you get to set the way the library processes unknown chunks in the
-input PNG stream. Both known and unknown chunks will be read. Normal
-behavior is that known chunks will be parsed into information in
-various info_ptr members while unknown chunks will be discarded. This
-behavior can be wasteful if your application will never use some known
-chunk types. To change this, you can call:
-
- png_set_keep_unknown_chunks(png_ptr, keep,
- chunk_list, num_chunks);
-
- keep - 0: default unknown chunk handling
- 1: ignore; do not keep
- 2: keep only if safe-to-copy
- 3: keep even if unsafe-to-copy
-
- You can use these definitions:
- PNG_HANDLE_CHUNK_AS_DEFAULT 0
- PNG_HANDLE_CHUNK_NEVER 1
- PNG_HANDLE_CHUNK_IF_SAFE 2
- PNG_HANDLE_CHUNK_ALWAYS 3
-
- chunk_list - list of chunks affected (a byte string,
- five bytes per chunk, NULL or '\0' if
- num_chunks is positive; ignored if
- numchunks <= 0).
-
- num_chunks - number of chunks affected; if 0, all
- unknown chunks are affected. If positive,
- only the chunks in the list are affected,
- and if negative all unknown chunks and
- all known chunks except for the IHDR,
- PLTE, tRNS, IDAT, and IEND chunks are
- affected.
-
-Unknown chunks declared in this way will be saved as raw data onto a
-list of png_unknown_chunk structures. If a chunk that is normally
-known to libpng is named in the list, it will be handled as unknown,
-according to the "keep" directive. If a chunk is named in successive
-instances of png_set_keep_unknown_chunks(), the final instance will
-take precedence. The IHDR and IEND chunks should not be named in
-chunk_list; if they are, libpng will process them normally anyway.
-If you know that your application will never make use of some particular
-chunks, use PNG_HANDLE_CHUNK_NEVER (or 1) as demonstrated below.
-
-Here is an example of the usage of png_set_keep_unknown_chunks(),
-where the private "vpAg" chunk will later be processed by a user chunk
-callback function:
-
- png_byte vpAg[5]={118, 112, 65, 103, (png_byte) '\0'};
-
- #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
- png_byte unused_chunks[]=
- {
- 104, 73, 83, 84, (png_byte) '\0', /* hIST */
- 105, 84, 88, 116, (png_byte) '\0', /* iTXt */
- 112, 67, 65, 76, (png_byte) '\0', /* pCAL */
- 115, 67, 65, 76, (png_byte) '\0', /* sCAL */
- 115, 80, 76, 84, (png_byte) '\0', /* sPLT */
- 116, 73, 77, 69, (png_byte) '\0', /* tIME */
- };
- #endif
-
- ...
-
- #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
- /* ignore all unknown chunks
- * (use global setting "2" for libpng16 and earlier):
- */
- png_set_keep_unknown_chunks(read_ptr, 2, NULL, 0);
-
- /* except for vpAg: */
- png_set_keep_unknown_chunks(read_ptr, 2, vpAg, 1);
-
- /* also ignore unused known chunks: */
- png_set_keep_unknown_chunks(read_ptr, 1, unused_chunks,
- (int)(sizeof unused_chunks)/5);
- #endif
-
-User limits
-
-The PNG specification allows the width and height of an image to be as
-large as 2^31-1 (0x7fffffff), or about 2.147 billion rows and columns.
-For safety, libpng imposes a default limit of 1 million rows and columns.
-Larger images will be rejected immediately with a png_error() call. If
-you wish to change these limits, you can use
-
- png_set_user_limits(png_ptr, width_max, height_max);
-
-to set your own limits (libpng may reject some very wide images
-anyway because of potential buffer overflow conditions).
-
-You should put this statement after you create the PNG structure and
-before calling png_read_info(), png_read_png(), or png_process_data().
-
-When writing a PNG datastream, put this statement before calling
-png_write_info() or png_write_png().
-
-If you need to retrieve the limits that are being applied, use
-
- width_max = png_get_user_width_max(png_ptr);
- height_max = png_get_user_height_max(png_ptr);
-
-The PNG specification sets no limit on the number of ancillary chunks
-allowed in a PNG datastream. By default, libpng imposes a limit of
-a total of 1000 sPLT, tEXt, iTXt, zTXt, and unknown chunks to be stored.
-If you have set up both info_ptr and end_info_ptr, the limit applies
-separately to each. You can change the limit on the total number of such
-chunks that will be stored, with
-
- png_set_chunk_cache_max(png_ptr, user_chunk_cache_max);
-
-where 0x7fffffffL means unlimited. You can retrieve this limit with
-
- chunk_cache_max = png_get_chunk_cache_max(png_ptr);
-
-Libpng imposes a limit of 8 Megabytes (8,000,000 bytes) on the amount of
-memory that any chunk other than IDAT can occupy, originally or when
-decompressed (prior to libpng-1.6.32 the limit was only applied to compressed
-chunks after decompression). You can change this limit with
-
- png_set_chunk_malloc_max(png_ptr, user_chunk_malloc_max);
-
-and you can retrieve the limit with
-
- chunk_malloc_max = png_get_chunk_malloc_max(png_ptr);
-
-Any chunks that would cause either of these limits to be exceeded will
-be ignored.
-
-Information about your system
-
-If you intend to display the PNG or to incorporate it in other image data you
-need to tell libpng information about your display or drawing surface so that
-libpng can convert the values in the image to match the display.
-
-From libpng-1.5.4 this information can be set before reading the PNG file
-header. In earlier versions png_set_gamma() existed but behaved incorrectly if
-called before the PNG file header had been read and png_set_alpha_mode() did not
-exist.
-
-If you need to support versions prior to libpng-1.5.4 test the version number
-as illustrated below using "PNG_LIBPNG_VER >= 10504" and follow the procedures
-described in the appropriate manual page.
-
-You give libpng the encoding expected by your system expressed as a 'gamma'
-value. You can also specify a default encoding for the PNG file in
-case the required information is missing from the file. By default libpng
-assumes that the PNG data matches your system, to keep this default call:
-
- png_set_gamma(png_ptr, screen_gamma, output_gamma);
-
-or you can use the fixed point equivalent:
-
- png_set_gamma_fixed(png_ptr, PNG_FP_1*screen_gamma,
- PNG_FP_1*output_gamma);
-
-If you don't know the gamma for your system it is probably 2.2 - a good
-approximation to the IEC standard for display systems (sRGB). If images are
-too contrasty or washed out you got the value wrong - check your system
-documentation!
-
-Many systems permit the system gamma to be changed via a lookup table in the
-display driver, a few systems, including older Macs, change the response by
-default. As of 1.5.4 three special values are available to handle common
-situations:
-
- PNG_DEFAULT_sRGB: Indicates that the system conforms to the
- IEC 61966-2-1 standard. This matches almost
- all systems.
- PNG_GAMMA_MAC_18: Indicates that the system is an older
- (pre Mac OS 10.6) Apple Macintosh system with
- the default settings.
- PNG_GAMMA_LINEAR: Just the fixed point value for 1.0 - indicates
- that the system expects data with no gamma
- encoding.
-
-You would use the linear (unencoded) value if you need to process the pixel
-values further because this avoids the need to decode and re-encode each
-component value whenever arithmetic is performed. A lot of graphics software
-uses linear values for this reason, often with higher precision component values
-to preserve overall accuracy.
-
-
-The output_gamma value expresses how to decode the output values, not how
-they are encoded. The values used correspond to the normal numbers used to
-describe the overall gamma of a computer display system; for example 2.2 for
-an sRGB conformant system. The values are scaled by 100000 in the _fixed
-version of the API (so 220000 for sRGB.)
-
-The inverse of the value is always used to provide a default for the PNG file
-encoding if it has no gAMA chunk and if png_set_gamma() has not been called
-to override the PNG gamma information.
-
-When the ALPHA_OPTIMIZED mode is selected the output gamma is used to encode
-opaque pixels however pixels with lower alpha values are not encoded,
-regardless of the output gamma setting.
-
-When the standard Porter Duff handling is requested with mode 1 the output
-encoding is set to be linear and the output_gamma value is only relevant
-as a default for input data that has no gamma information. The linear output
-encoding will be overridden if png_set_gamma() is called - the results may be
-highly unexpected!
-
-The following numbers are derived from the sRGB standard and the research
-behind it. sRGB is defined to be approximated by a PNG gAMA chunk value of
-0.45455 (1/2.2) for PNG. The value implicitly includes any viewing
-correction required to take account of any differences in the color
-environment of the original scene and the intended display environment; the
-value expresses how to *decode* the image for display, not how the original
-data was *encoded*.
-
-sRGB provides a peg for the PNG standard by defining a viewing environment.
-sRGB itself, and earlier TV standards, actually use a more complex transform
-(a linear portion then a gamma 2.4 power law) than PNG can express. (PNG is
-limited to simple power laws.) By saying that an image for direct display on
-an sRGB conformant system should be stored with a gAMA chunk value of 45455
-(11.3.3.2 and 11.3.3.5 of the ISO PNG specification) the PNG specification
-makes it possible to derive values for other display systems and
-environments.
-
-The Mac value is deduced from the sRGB based on an assumption that the actual
-extra viewing correction used in early Mac display systems was implemented as
-a power 1.45 lookup table.
-
-Any system where a programmable lookup table is used or where the behavior of
-the final display device characteristics can be changed requires system
-specific code to obtain the current characteristic. However this can be
-difficult and most PNG gamma correction only requires an approximate value.
-
-By default, if png_set_alpha_mode() is not called, libpng assumes that all
-values are unencoded, linear, values and that the output device also has a
-linear characteristic. This is only very rarely correct - it is invariably
-better to call png_set_alpha_mode() with PNG_DEFAULT_sRGB than rely on the
-default if you don't know what the right answer is!
-
-The special value PNG_GAMMA_MAC_18 indicates an older Mac system (pre Mac OS
-10.6) which used a correction table to implement a somewhat lower gamma on an
-otherwise sRGB system.
-
-Both these values are reserved (not simple gamma values) in order to allow
-more precise correction internally in the future.
-
-NOTE: the values can be passed to either the fixed or floating
-point APIs, but the floating point API will also accept floating point
-values.
-
-The second thing you may need to tell libpng about is how your system handles
-alpha channel information. Some, but not all, PNG files contain an alpha
-channel. To display these files correctly you need to compose the data onto a
-suitable background, as described in the PNG specification.
-
-Libpng only supports composing onto a single color (using png_set_background;
-see below). Otherwise you must do the composition yourself and, in this case,
-you may need to call png_set_alpha_mode:
-
- #if PNG_LIBPNG_VER >= 10504
- png_set_alpha_mode(png_ptr, mode, screen_gamma);
- #else
- png_set_gamma(png_ptr, screen_gamma, 1.0/screen_gamma);
- #endif
-
-The screen_gamma value is the same as the argument to png_set_gamma; however,
-how it affects the output depends on the mode. png_set_alpha_mode() sets the
-file gamma default to 1/screen_gamma, so normally you don't need to call
-png_set_gamma. If you need different defaults call png_set_gamma() before
-png_set_alpha_mode() - if you call it after it will override the settings made
-by png_set_alpha_mode().
-
-The mode is as follows:
-
- PNG_ALPHA_PNG: The data is encoded according to the PNG
-specification. Red, green and blue, or gray, components are
-gamma encoded color values and are not premultiplied by the
-alpha value. The alpha value is a linear measure of the
-contribution of the pixel to the corresponding final output pixel.
-
-You should normally use this format if you intend to perform
-color correction on the color values; most, maybe all, color
-correction software has no handling for the alpha channel and,
-anyway, the math to handle pre-multiplied component values is
-unnecessarily complex.
-
-Before you do any arithmetic on the component values you need
-to remove the gamma encoding and multiply out the alpha
-channel. See the PNG specification for more detail. It is
-important to note that when an image with an alpha channel is
-scaled, linear encoded, pre-multiplied component values must
-be used!
-
-The remaining modes assume you don't need to do any further color correction or
-that if you do, your color correction software knows all about alpha (it
-probably doesn't!). They 'associate' the alpha with the color information by
-storing color channel values that have been scaled by the alpha. The
-advantage is that the color channels can be resampled (the image can be
-scaled) in this form. The disadvantage is that normal practice is to store
-linear, not (gamma) encoded, values and this requires 16-bit channels for
-still images rather than the 8-bit channels that are just about sufficient if
-gamma encoding is used. In addition all non-transparent pixel values,
-including completely opaque ones, must be gamma encoded to produce the final
-image. These are the 'STANDARD', 'ASSOCIATED' or 'PREMULTIPLIED' modes
-described below (the latter being the two common names for associated alpha
-color channels). Note that PNG files always contain non-associated color
-channels; png_set_alpha_mode() with one of the modes causes the decoder to
-convert the pixels to an associated form before returning them to your
-application.
-
-Since it is not necessary to perform arithmetic on opaque color values so
-long as they are not to be resampled and are in the final color space it is
-possible to optimize the handling of alpha by storing the opaque pixels in
-the PNG format (adjusted for the output color space) while storing partially
-opaque pixels in the standard, linear, format. The accuracy required for
-standard alpha composition is relatively low, because the pixels are
-isolated, therefore typically the accuracy loss in storing 8-bit linear
-values is acceptable. (This is not true if the alpha channel is used to
-simulate transparency over large areas - use 16 bits or the PNG mode in
-this case!) This is the 'OPTIMIZED' mode. For this mode a pixel is
-treated as opaque only if the alpha value is equal to the maximum value.
-
- PNG_ALPHA_STANDARD: The data libpng produces is encoded in the
-standard way assumed by most correctly written graphics software.
-The gamma encoding will be removed by libpng and the
-linear component values will be pre-multiplied by the
-alpha channel.
-
-With this format the final image must be re-encoded to
-match the display gamma before the image is displayed.
-If your system doesn't do that, yet still seems to
-perform arithmetic on the pixels without decoding them,
-it is broken - check out the modes below.
-
-With PNG_ALPHA_STANDARD libpng always produces linear
-component values, whatever screen_gamma you supply. The
-screen_gamma value is, however, used as a default for
-the file gamma if the PNG file has no gamma information.
-
-If you call png_set_gamma() after png_set_alpha_mode() you
-will override the linear encoding. Instead the
-pre-multiplied pixel values will be gamma encoded but
-the alpha channel will still be linear. This may
-actually match the requirements of some broken software,
-but it is unlikely.
-
-While linear 8-bit data is often used it has
-insufficient precision for any image with a reasonable
-dynamic range. To avoid problems, and if your software
-supports it, use png_set_expand_16() to force all
-components to 16 bits.
-
- PNG_ALPHA_OPTIMIZED: This mode is the same as PNG_ALPHA_STANDARD
-except that completely opaque pixels are gamma encoded according to
-the screen_gamma value. Pixels with alpha less than 1.0
-will still have linear components.
-
-Use this format if you have control over your
-compositing software and so don't do other arithmetic
-(such as scaling) on the data you get from libpng. Your
-compositing software can simply copy opaque pixels to
-the output but still has linear values for the
-non-opaque pixels.
-
-In normal compositing, where the alpha channel encodes
-partial pixel coverage (as opposed to broad area
-translucency), the inaccuracies of the 8-bit
-representation of non-opaque pixels are irrelevant.
-
-You can also try this format if your software is broken;
-it might look better.
-
- PNG_ALPHA_BROKEN: This is PNG_ALPHA_STANDARD; however, all component
-values, including the alpha channel are gamma encoded. This is
-broken because, in practice, no implementation that uses this choice
-correctly undoes the encoding before handling alpha composition. Use this
-choice only if other serious errors in the software or hardware you use
-mandate it. In most cases of broken software or hardware the bug in the
-final display manifests as a subtle halo around composited parts of the
-image. You may not even perceive this as a halo; the composited part of
-the image may simply appear separate from the background, as though it had
-been cut out of paper and pasted on afterward.
-
-If you don't have to deal with bugs in software or hardware, or if you can fix
-them, there are three recommended ways of using png_set_alpha_mode():
-
- png_set_alpha_mode(png_ptr, PNG_ALPHA_PNG,
- screen_gamma);
-
-You can do color correction on the result (libpng does not currently
-support color correction internally). When you handle the alpha channel
-you need to undo the gamma encoding and multiply out the alpha.
-
- png_set_alpha_mode(png_ptr, PNG_ALPHA_STANDARD,
- screen_gamma);
- png_set_expand_16(png_ptr);
-
-If you are using the high level interface, don't call png_set_expand_16();
-instead pass PNG_TRANSFORM_EXPAND_16 to the interface.
-
-With this mode you can't do color correction, but you can do arithmetic,
-including composition and scaling, on the data without further processing.
-
- png_set_alpha_mode(png_ptr, PNG_ALPHA_OPTIMIZED,
- screen_gamma);
-
-You can avoid the expansion to 16-bit components with this mode, but you
-lose the ability to scale the image or perform other linear arithmetic.
-All you can do is compose the result onto a matching output. Since this
-mode is libpng-specific you also need to write your own composition
-software.
-
-The following are examples of calls to png_set_alpha_mode to achieve the
-required overall gamma correction and, where necessary, alpha
-premultiplication.
-
- png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB);
-
-Choices for the alpha_mode are
-
- PNG_ALPHA_PNG 0 /* according to the PNG standard */
- PNG_ALPHA_STANDARD 1 /* according to Porter/Duff */
- PNG_ALPHA_ASSOCIATED 1 /* as above; this is the normal practice */
- PNG_ALPHA_PREMULTIPLIED 1 /* as above */
- PNG_ALPHA_OPTIMIZED 2 /* 'PNG' for opaque pixels, else 'STANDARD' */
- PNG_ALPHA_BROKEN 3 /* the alpha channel is gamma encoded */
-
-PNG_ALPHA_PNG is the default libpng handling of the alpha channel. It is not
-pre-multiplied into the color components. In addition the call states
-that the output is for a sRGB system and causes all PNG files without gAMA
-chunks to be assumed to be encoded using sRGB.
-
- png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC);
-
-In this case the output is assumed to be something like an sRGB conformant
-display preceded by a power-law lookup table of power 1.45. This is how
-early Mac systems behaved.
-
- png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_GAMMA_LINEAR);
-
-This is the classic Jim Blinn approach and will work in academic
-environments where everything is done by the book. It has the shortcoming
-of assuming that input PNG data with no gamma information is linear - this
-is unlikely to be correct unless the PNG files were generated locally.
-Most of the time the output precision will be so low as to show
-significant banding in dark areas of the image.
-
- png_set_expand_16(pp);
- png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_DEFAULT_sRGB);
-
-This is a somewhat more realistic Jim Blinn inspired approach. PNG files
-are assumed to have the sRGB encoding if not marked with a gamma value and
-the output is always 16 bits per component. This permits accurate scaling
-and processing of the data. If you know that your input PNG files were
-generated locally you might need to replace PNG_DEFAULT_sRGB with the
-correct value for your system.
-
- png_set_alpha_mode(pp, PNG_ALPHA_OPTIMIZED, PNG_DEFAULT_sRGB);
-
-If you just need to composite the PNG image onto an existing background
-and if you control the code that does this you can use the optimization
-setting. In this case you just copy completely opaque pixels to the
-output. For pixels that are not completely transparent (you just skip
-those) you do the composition math using png_composite or png_composite_16
-below then encode the resultant 8-bit or 16-bit values to match the output
-encoding.
-
- Other cases
-
-If neither the PNG nor the standard linear encoding work for you because
-of the software or hardware you use then you have a big problem. The PNG
-case will probably result in halos around the image. The linear encoding
-will probably result in a washed out, too bright, image (it's actually too
-contrasty.) Try the ALPHA_OPTIMIZED mode above - this will probably
-substantially reduce the halos. Alternatively try:
-
- png_set_alpha_mode(pp, PNG_ALPHA_BROKEN, PNG_DEFAULT_sRGB);
-
-This option will also reduce the halos, but there will be slight dark
-halos round the opaque parts of the image where the background is light.
-In the OPTIMIZED mode the halos will be light halos where the background
-is dark. Take your pick - the halos are unavoidable unless you can get
-your hardware/software fixed! (The OPTIMIZED approach is slightly
-faster.)
-
-When the default gamma of PNG files doesn't match the output gamma.
-If you have PNG files with no gamma information png_set_alpha_mode allows
-you to provide a default gamma, but it also sets the output gamma to the
-matching value. If you know your PNG files have a gamma that doesn't
-match the output you can take advantage of the fact that
-png_set_alpha_mode always sets the output gamma but only sets the PNG
-default if it is not already set:
-
- png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB);
- png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC);
-
-The first call sets both the default and the output gamma values, the
-second call overrides the output gamma without changing the default. This
-is easier than achieving the same effect with png_set_gamma. You must use
-PNG_ALPHA_PNG for the first call - internal checking in png_set_alpha will
-fire if more than one call to png_set_alpha_mode and png_set_background is
-made in the same read operation, however multiple calls with PNG_ALPHA_PNG
-are ignored.
-
-If you don't need, or can't handle, the alpha channel you can call
-png_set_background() to remove it by compositing against a fixed color. Don't
-call png_set_strip_alpha() to do this - it will leave spurious pixel values in
-transparent parts of this image.
-
- png_set_background(png_ptr, &background_color,
- PNG_BACKGROUND_GAMMA_SCREEN, 0, 1);
-
-The background_color is an RGB or grayscale value according to the data format
-libpng will produce for you. Because you don't yet know the format of the PNG
-file, if you call png_set_background at this point you must arrange for the
-format produced by libpng to always have 8-bit or 16-bit components and then
-store the color as an 8-bit or 16-bit color as appropriate. The color contains
-separate gray and RGB component values, so you can let libpng produce gray or
-RGB output according to the input format, but low bit depth grayscale images
-must always be converted to at least 8-bit format. (Even though low bit depth
-grayscale images can't have an alpha channel they can have a transparent
-color!)
-
-You set the transforms you need later, either as flags to the high level
-interface or libpng API calls for the low level interface. For reference the
-settings and API calls required are:
-
-8-bit values:
- PNG_TRANSFORM_SCALE_16 | PNG_EXPAND
- png_set_expand(png_ptr); png_set_scale_16(png_ptr);
-
- If you must get exactly the same inaccurate results
- produced by default in versions prior to libpng-1.5.4,
- use PNG_TRANSFORM_STRIP_16 and png_set_strip_16(png_ptr)
- instead.
-
-16-bit values:
- PNG_TRANSFORM_EXPAND_16
- png_set_expand_16(png_ptr);
-
-In either case palette image data will be expanded to RGB. If you just want
-color data you can add PNG_TRANSFORM_GRAY_TO_RGB or png_set_gray_to_rgb(png_ptr)
-to the list.
-
-Calling png_set_background before the PNG file header is read will not work
-prior to libpng-1.5.4. Because the failure may result in unexpected warnings or
-errors it is therefore much safer to call png_set_background after the head has
-been read. Unfortunately this means that prior to libpng-1.5.4 it cannot be
-used with the high level interface.
-
-The high-level read interface
-
-At this point there are two ways to proceed; through the high-level
-read interface, or through a sequence of low-level read operations.
-You can use the high-level interface if (a) you are willing to read
-the entire image into memory, and (b) the input transformations
-you want to do are limited to the following set:
-
- PNG_TRANSFORM_IDENTITY No transformation
- PNG_TRANSFORM_SCALE_16 Strip 16-bit samples to
- 8-bit accurately
- PNG_TRANSFORM_STRIP_16 Chop 16-bit samples to
- 8-bit less accurately
- PNG_TRANSFORM_STRIP_ALPHA Discard the alpha channel
- PNG_TRANSFORM_PACKING Expand 1, 2 and 4-bit
- samples to bytes
- PNG_TRANSFORM_PACKSWAP Change order of packed
- pixels to LSB first
- PNG_TRANSFORM_EXPAND Perform set_expand()
- PNG_TRANSFORM_INVERT_MONO Invert monochrome images
- PNG_TRANSFORM_SHIFT Normalize pixels to the
- sBIT depth
- PNG_TRANSFORM_BGR Flip RGB to BGR, RGBA
- to BGRA
- PNG_TRANSFORM_SWAP_ALPHA Flip RGBA to ARGB or GA
- to AG
- PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity
- to transparency
- PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples
- PNG_TRANSFORM_GRAY_TO_RGB Expand grayscale samples
- to RGB (or GA to RGBA)
- PNG_TRANSFORM_EXPAND_16 Expand samples to 16 bits
-
-(This excludes setting a background color, doing gamma transformation,
-quantizing, and setting filler.) If this is the case, simply do this:
-
- png_read_png(png_ptr, info_ptr, png_transforms, NULL)
-
-where png_transforms is an integer containing the bitwise OR of some
-set of transformation flags. This call is equivalent to png_read_info(),
-followed the set of transformations indicated by the transform mask,
-then png_read_image(), and finally png_read_end().
-
-(The final parameter of this call is not yet used. Someday it might point
-to transformation parameters required by some future input transform.)
-
-You must use png_transforms and not call any png_set_transform() functions
-when you use png_read_png().
-
-After you have called png_read_png(), you can retrieve the image data
-with
-
- row_pointers = png_get_rows(png_ptr, info_ptr);
-
-where row_pointers is an array of pointers to the pixel data for each row:
-
- png_bytep row_pointers[height];
-
-If you know your image size and pixel size ahead of time, you can allocate
-row_pointers prior to calling png_read_png() with
-
- if (height > PNG_UINT_32_MAX/(sizeof (png_byte)))
- png_error (png_ptr,
- "Image is too tall to process in memory");
-
- if (width > PNG_UINT_32_MAX/pixel_size)
- png_error (png_ptr,
- "Image is too wide to process in memory");
-
- row_pointers = png_malloc(png_ptr,
- height*(sizeof (png_bytep)));
-
- for (int i=0; i<height, i++)
- row_pointers[i]=NULL; /* security precaution */
-
- for (int i=0; i<height, i++)
- row_pointers[i]=png_malloc(png_ptr,
- width*pixel_size);
-
- png_set_rows(png_ptr, info_ptr, &row_pointers);
-
-Alternatively you could allocate your image in one big block and define
-row_pointers[i] to point into the proper places in your block, but first
-be sure that your platform is able to allocate such a large buffer:
-
- /* Guard against integer overflow */
- if (height > PNG_SIZE_MAX/(width*pixel_size)) {
- png_error(png_ptr,"image_data buffer would be too large");
- }
-
- png_bytep buffer=png_malloc(png_ptr,height*width*pixel_size);
-
- for (int i=0; i<height, i++)
- row_pointers[i]=buffer+i*width*pixel_size;
-
- png_set_rows(png_ptr, info_ptr, &row_pointers);
-
-If you use png_set_rows(), the application is responsible for freeing
-row_pointers (and row_pointers[i], if they were separately allocated).
-
-If you don't allocate row_pointers ahead of time, png_read_png() will
-do it, and it'll be free'ed by libpng when you call png_destroy_*().
-
-The low-level read interface
-
-If you are going the low-level route, you are now ready to read all
-the file information up to the actual image data. You do this with a
-call to png_read_info().
-
- png_read_info(png_ptr, info_ptr);
-
-This will process all chunks up to but not including the image data.
-
-This also copies some of the data from the PNG file into the decode structure
-for use in later transformations. Important information copied in is:
-
-1) The PNG file gamma from the gAMA chunk. This overwrites the default value
-provided by an earlier call to png_set_gamma or png_set_alpha_mode.
-
-2) Prior to libpng-1.5.4 the background color from a bKGd chunk. This
-damages the information provided by an earlier call to png_set_background
-resulting in unexpected behavior. Libpng-1.5.4 no longer does this.
-
-3) The number of significant bits in each component value. Libpng uses this to
-optimize gamma handling by reducing the internal lookup table sizes.
-
-4) The transparent color information from a tRNS chunk. This can be modified by
-a later call to png_set_tRNS.
-
-Querying the info structure
-
-Functions are used to get the information from the info_ptr once it
-has been read. Note that these fields may not be completely filled
-in until png_read_end() has read the chunk data following the image.
-
- png_get_IHDR(png_ptr, info_ptr, &width, &height,
- &bit_depth, &color_type, &interlace_type,
- &compression_type, &filter_method);
-
- width - holds the width of the image
- in pixels (up to 2^31).
-
- height - holds the height of the image
- in pixels (up to 2^31).
-
- bit_depth - holds the bit depth of one of the
- image channels. (valid values are
- 1, 2, 4, 8, 16 and depend also on
- the color_type. See also
- significant bits (sBIT) below).
-
- color_type - describes which color/alpha channels
- are present.
- PNG_COLOR_TYPE_GRAY
- (bit depths 1, 2, 4, 8, 16)
- PNG_COLOR_TYPE_GRAY_ALPHA
- (bit depths 8, 16)
- PNG_COLOR_TYPE_PALETTE
- (bit depths 1, 2, 4, 8)
- PNG_COLOR_TYPE_RGB
- (bit_depths 8, 16)
- PNG_COLOR_TYPE_RGB_ALPHA
- (bit_depths 8, 16)
-
- PNG_COLOR_MASK_PALETTE
- PNG_COLOR_MASK_COLOR
- PNG_COLOR_MASK_ALPHA
-
- interlace_type - (PNG_INTERLACE_NONE or
- PNG_INTERLACE_ADAM7)
-
- compression_type - (must be PNG_COMPRESSION_TYPE_BASE
- for PNG 1.0)
-
- filter_method - (must be PNG_FILTER_TYPE_BASE
- for PNG 1.0, and can also be
- PNG_INTRAPIXEL_DIFFERENCING if
- the PNG datastream is embedded in
- a MNG-1.0 datastream)
-
- Any of width, height, color_type, bit_depth,
- interlace_type, compression_type, or filter_method can
- be NULL if you are not interested in their values.
-
- Note that png_get_IHDR() returns 32-bit data into
- the application's width and height variables.
- This is an unsafe situation if these are not png_uint_32
- variables. In such situations, the
- png_get_image_width() and png_get_image_height()
- functions described below are safer.
-
- width = png_get_image_width(png_ptr,
- info_ptr);
-
- height = png_get_image_height(png_ptr,
- info_ptr);
-
- bit_depth = png_get_bit_depth(png_ptr,
- info_ptr);
-
- color_type = png_get_color_type(png_ptr,
- info_ptr);
-
- interlace_type = png_get_interlace_type(png_ptr,
- info_ptr);
-
- compression_type = png_get_compression_type(png_ptr,
- info_ptr);
-
- filter_method = png_get_filter_type(png_ptr,
- info_ptr);
-
- channels = png_get_channels(png_ptr, info_ptr);
-
- channels - number of channels of info for the
- color type (valid values are 1 (GRAY,
- PALETTE), 2 (GRAY_ALPHA), 3 (RGB),
- 4 (RGB_ALPHA or RGB + filler byte))
-
- rowbytes = png_get_rowbytes(png_ptr, info_ptr);
-
- rowbytes - number of bytes needed to hold a row
- This value, the bit_depth, color_type,
- and the number of channels can change
- if you use transforms such as
- png_set_expand(). See
- png_read_update_info(), below.
-
- signature = png_get_signature(png_ptr, info_ptr);
-
- signature - holds the signature read from the
- file (if any). The data is kept in
- the same offset it would be if the
- whole signature were read (i.e. if an
- application had already read in 4
- bytes of signature before starting
- libpng, the remaining 4 bytes would
- be in signature[4] through signature[7]
- (see png_set_sig_bytes())).
-
-These are also important, but their validity depends on whether the chunk
-has been read. The png_get_valid(png_ptr, info_ptr, PNG_INFO_<chunk>) and
-png_get_<chunk>(png_ptr, info_ptr, ...) functions return non-zero if the
-data has been read, or zero if it is missing. The parameters to the
-png_get_<chunk> are set directly if they are simple data types, or a
-pointer into the info_ptr is returned for any complex types.
-
-The colorspace data from gAMA, cHRM, sRGB, iCCP, and sBIT chunks
-is simply returned to give the application information about how the
-image was encoded. Libpng itself only does transformations using the file
-gamma when combining semitransparent pixels with the background color, and,
-since libpng-1.6.0, when converting between 8-bit sRGB and 16-bit linear pixels
-within the simplified API. Libpng also uses the file gamma when converting
-RGB to gray, beginning with libpng-1.0.5, if the application calls
-png_set_rgb_to_gray()).
-
- png_get_PLTE(png_ptr, info_ptr, &palette,
- &num_palette);
-
- palette - the palette for the file
- (array of png_color)
-
- num_palette - number of entries in the palette
-
- png_get_gAMA(png_ptr, info_ptr, &file_gamma);
- png_get_gAMA_fixed(png_ptr, info_ptr, &int_file_gamma);
-
- file_gamma - the gamma at which the file is
- written (PNG_INFO_gAMA)
-
- int_file_gamma - 100,000 times the gamma at which the
- file is written
-
- png_get_cHRM(png_ptr, info_ptr, &white_x, &white_y, &red_x,
- &red_y, &green_x, &green_y, &blue_x, &blue_y)
- png_get_cHRM_XYZ(png_ptr, info_ptr, &red_X, &red_Y, &red_Z,
- &green_X, &green_Y, &green_Z, &blue_X, &blue_Y,
- &blue_Z)
- png_get_cHRM_fixed(png_ptr, info_ptr, &int_white_x,
- &int_white_y, &int_red_x, &int_red_y,
- &int_green_x, &int_green_y, &int_blue_x,
- &int_blue_y)
- png_get_cHRM_XYZ_fixed(png_ptr, info_ptr, &int_red_X, &int_red_Y,
- &int_red_Z, &int_green_X, &int_green_Y,
- &int_green_Z, &int_blue_X, &int_blue_Y,
- &int_blue_Z)
-
- {white,red,green,blue}_{x,y}
- A color space encoding specified using the
- chromaticities of the end points and the
- white point. (PNG_INFO_cHRM)
-
- {red,green,blue}_{X,Y,Z}
- A color space encoding specified using the
- encoding end points - the CIE tristimulus
- specification of the intended color of the red,
- green and blue channels in the PNG RGB data.
- The white point is simply the sum of the three
- end points. (PNG_INFO_cHRM)
-
- png_get_sRGB(png_ptr, info_ptr, &srgb_intent);
-
- srgb_intent - the rendering intent (PNG_INFO_sRGB)
- The presence of the sRGB chunk
- means that the pixel data is in the
- sRGB color space. This chunk also
- implies specific values of gAMA and
- cHRM.
-
- png_get_iCCP(png_ptr, info_ptr, &name,
- &compression_type, &profile, &proflen);
-
- name - The profile name.
-
- compression_type - The compression type; always
- PNG_COMPRESSION_TYPE_BASE for PNG 1.0.
- You may give NULL to this argument to
- ignore it.
-
- profile - International Color Consortium color
- profile data. May contain NULs.
-
- proflen - length of profile data in bytes.
-
- png_get_sBIT(png_ptr, info_ptr, &sig_bit);
-
- sig_bit - the number of significant bits for
- (PNG_INFO_sBIT) each of the gray,
- red, green, and blue channels,
- whichever are appropriate for the
- given color type (png_color_16)
-
- png_get_tRNS(png_ptr, info_ptr, &trans_alpha,
- &num_trans, &trans_color);
-
- trans_alpha - array of alpha (transparency)
- entries for palette (PNG_INFO_tRNS)
-
- num_trans - number of transparent entries
- (PNG_INFO_tRNS)
-
- trans_color - graylevel or color sample values of
- the single transparent color for
- non-paletted images (PNG_INFO_tRNS)
-
- png_get_eXIf_1(png_ptr, info_ptr, &num_exif, &exif);
- (PNG_INFO_eXIf)
-
- exif - Exif profile (array of png_byte)
-
- png_get_hIST(png_ptr, info_ptr, &hist);
- (PNG_INFO_hIST)
-
- hist - histogram of palette (array of
- png_uint_16)
-
- png_get_tIME(png_ptr, info_ptr, &mod_time);
-
- mod_time - time image was last modified
- (PNG_VALID_tIME)
-
- png_get_bKGD(png_ptr, info_ptr, &background);
-
- background - background color (of type
- png_color_16p) (PNG_VALID_bKGD)
- valid 16-bit red, green and blue
- values, regardless of color_type
-
- num_comments = png_get_text(png_ptr, info_ptr,
- &text_ptr, &num_text);
-
- num_comments - number of comments
-
- text_ptr - array of png_text holding image
- comments
-
- text_ptr[i].compression - type of compression used
- on "text" PNG_TEXT_COMPRESSION_NONE
- PNG_TEXT_COMPRESSION_zTXt
- PNG_ITXT_COMPRESSION_NONE
- PNG_ITXT_COMPRESSION_zTXt
-
- text_ptr[i].key - keyword for comment. Must contain
- 1-79 characters.
-
- text_ptr[i].text - text comments for current
- keyword. Can be empty.
-
- text_ptr[i].text_length - length of text string,
- after decompression, 0 for iTXt
-
- text_ptr[i].itxt_length - length of itxt string,
- after decompression, 0 for tEXt/zTXt
-
- text_ptr[i].lang - language of comment (empty
- string for unknown).
-
- text_ptr[i].lang_key - keyword in UTF-8
- (empty string for unknown).
-
- Note that the itxt_length, lang, and lang_key
- members of the text_ptr structure only exist when the
- library is built with iTXt chunk support. Prior to
- libpng-1.4.0 the library was built by default without
- iTXt support. Also note that when iTXt is supported,
- they contain NULL pointers when the "compression"
- field contains PNG_TEXT_COMPRESSION_NONE or
- PNG_TEXT_COMPRESSION_zTXt.
-
- num_text - number of comments (same as
- num_comments; you can put NULL here
- to avoid the duplication)
-
- Note while png_set_text() will accept text, language,
- and translated keywords that can be NULL pointers, the
- structure returned by png_get_text will always contain
- regular zero-terminated C strings. They might be
- empty strings but they will never be NULL pointers.
-
- num_spalettes = png_get_sPLT(png_ptr, info_ptr,
- &palette_ptr);
-
- num_spalettes - number of sPLT chunks read.
-
- palette_ptr - array of palette structures holding
- contents of one or more sPLT chunks
- read.
-
- png_get_oFFs(png_ptr, info_ptr, &offset_x, &offset_y,
- &unit_type);
-
- offset_x - positive offset from the left edge
- of the screen (can be negative)
-
- offset_y - positive offset from the top edge
- of the screen (can be negative)
-
- unit_type - PNG_OFFSET_PIXEL, PNG_OFFSET_MICROMETER
-
- png_get_pHYs(png_ptr, info_ptr, &res_x, &res_y,
- &unit_type);
-
- res_x - pixels/unit physical resolution in
- x direction
-
- res_y - pixels/unit physical resolution in
- x direction
-
- unit_type - PNG_RESOLUTION_UNKNOWN,
- PNG_RESOLUTION_METER
-
- png_get_sCAL(png_ptr, info_ptr, &unit, &width,
- &height)
-
- unit - physical scale units (an integer)
-
- width - width of a pixel in physical scale units
-
- height - height of a pixel in physical scale units
- (width and height are doubles)
-
- png_get_sCAL_s(png_ptr, info_ptr, &unit, &width,
- &height)
-
- unit - physical scale units (an integer)
-
- width - width of a pixel in physical scale units
- (expressed as a string)
-
- height - height of a pixel in physical scale units
- (width and height are strings like "2.54")
-
- num_unknown_chunks = png_get_unknown_chunks(png_ptr,
- info_ptr, &unknowns)
-
- unknowns - array of png_unknown_chunk
- structures holding unknown chunks
-
- unknowns[i].name - name of unknown chunk
-
- unknowns[i].data - data of unknown chunk
-
- unknowns[i].size - size of unknown chunk's data
-
- unknowns[i].location - position of chunk in file
-
- The value of "i" corresponds to the order in which the
- chunks were read from the PNG file or inserted with the
- png_set_unknown_chunks() function.
-
- The value of "location" is a bitwise "or" of
-
- PNG_HAVE_IHDR (0x01)
- PNG_HAVE_PLTE (0x02)
- PNG_AFTER_IDAT (0x08)
-
-The data from the pHYs chunk can be retrieved in several convenient
-forms:
-
- res_x = png_get_x_pixels_per_meter(png_ptr,
- info_ptr)
-
- res_y = png_get_y_pixels_per_meter(png_ptr,
- info_ptr)
-
- res_x_and_y = png_get_pixels_per_meter(png_ptr,
- info_ptr)
-
- res_x = png_get_x_pixels_per_inch(png_ptr,
- info_ptr)
-
- res_y = png_get_y_pixels_per_inch(png_ptr,
- info_ptr)
-
- res_x_and_y = png_get_pixels_per_inch(png_ptr,
- info_ptr)
-
- aspect_ratio = png_get_pixel_aspect_ratio(png_ptr,
- info_ptr)
-
- Each of these returns 0 [signifying "unknown"] if
- the data is not present or if res_x is 0;
- res_x_and_y is 0 if res_x != res_y
-
- Note that because of the way the resolutions are
- stored internally, the inch conversions won't
- come out to exactly even number. For example,
- 72 dpi is stored as 0.28346 pixels/meter, and
- when this is retrieved it is 71.9988 dpi, so
- be sure to round the returned value appropriately
- if you want to display a reasonable-looking result.
-
-The data from the oFFs chunk can be retrieved in several convenient
-forms:
-
- x_offset = png_get_x_offset_microns(png_ptr, info_ptr);
-
- y_offset = png_get_y_offset_microns(png_ptr, info_ptr);
-
- x_offset = png_get_x_offset_inches(png_ptr, info_ptr);
-
- y_offset = png_get_y_offset_inches(png_ptr, info_ptr);
-
- Each of these returns 0 [signifying "unknown" if both
- x and y are 0] if the data is not present or if the
- chunk is present but the unit is the pixel. The
- remark about inexact inch conversions applies here
- as well, because a value in inches can't always be
- converted to microns and back without some loss
- of precision.
-
-For more information, see the
-PNG specification for chunk contents. Be careful with trusting
-rowbytes, as some of the transformations could increase the space
-needed to hold a row (expand, filler, gray_to_rgb, etc.).
-See png_read_update_info(), below.
-
-A quick word about text_ptr and num_text. PNG stores comments in
-keyword/text pairs, one pair per chunk, with no limit on the number
-of text chunks, and a 2^31 byte limit on their size. While there are
-suggested keywords, there is no requirement to restrict the use to these
-strings. It is strongly suggested that keywords and text be sensible
-to humans (that's the point), so don't use abbreviations. Non-printing
-symbols are not allowed. See the PNG specification for more details.
-There is also no requirement to have text after the keyword.
-
-Keywords should be limited to 79 Latin-1 characters without leading or
-trailing spaces, but non-consecutive spaces are allowed within the
-keyword. It is possible to have the same keyword any number of times.
-The text_ptr is an array of png_text structures, each holding a
-pointer to a language string, a pointer to a keyword and a pointer to
-a text string. The text string, language code, and translated
-keyword may be empty or NULL pointers. The keyword/text
-pairs are put into the array in the order that they are received.
-However, some or all of the text chunks may be after the image, so, to
-make sure you have read all the text chunks, don't mess with these
-until after you read the stuff after the image. This will be
-mentioned again below in the discussion that goes with png_read_end().
-
-Input transformations
-
-After you've read the header information, you can set up the library
-to handle any special transformations of the image data. The various
-ways to transform the data will be described in the order that they
-should occur. This is important, as some of these change the color
-type and/or bit depth of the data, and some others only work on
-certain color types and bit depths.
-
-Transformations you request are ignored if they don't have any meaning for a
-particular input data format. However some transformations can have an effect
-as a result of a previous transformation. If you specify a contradictory set of
-transformations, for example both adding and removing the alpha channel, you
-cannot predict the final result.
-
-The color used for the transparency values should be supplied in the same
-format/depth as the current image data. It is stored in the same format/depth
-as the image data in a tRNS chunk, so this is what libpng expects for this data.
-
-The color used for the background value depends on the need_expand argument as
-described below.
-
-Data will be decoded into the supplied row buffers packed into bytes
-unless the library has been told to transform it into another format.
-For example, 4 bit/pixel paletted or grayscale data will be returned
-2 pixels/byte with the leftmost pixel in the high-order bits of the byte,
-unless png_set_packing() is called. 8-bit RGB data will be stored
-in RGB RGB RGB format unless png_set_filler() or png_set_add_alpha()
-is called to insert filler bytes, either before or after each RGB triplet.
-
-16-bit RGB data will be returned RRGGBB RRGGBB, with the most significant
-byte of the color value first, unless png_set_scale_16() is called to
-transform it to regular RGB RGB triplets, or png_set_filler() or
-png_set_add alpha() is called to insert two filler bytes, either before
-or after each RRGGBB triplet. Similarly, 8-bit or 16-bit grayscale data can
-be modified with png_set_filler(), png_set_add_alpha(), png_set_strip_16(),
-or png_set_scale_16().
-
-The following code transforms grayscale images of less than 8 to 8 bits,
-changes paletted images to RGB, and adds a full alpha channel if there is
-transparency information in a tRNS chunk. This is most useful on
-grayscale images with bit depths of 2 or 4 or if there is a multiple-image
-viewing application that wishes to treat all images in the same way.
-
- if (color_type == PNG_COLOR_TYPE_PALETTE)
- png_set_palette_to_rgb(png_ptr);
-
- if (png_get_valid(png_ptr, info_ptr,
- PNG_INFO_tRNS)) png_set_tRNS_to_alpha(png_ptr);
-
- if (color_type == PNG_COLOR_TYPE_GRAY &&
- bit_depth < 8) png_set_expand_gray_1_2_4_to_8(png_ptr);
-
-The first two functions are actually aliases for png_set_expand(), added
-in libpng version 1.0.4, with the function names expanded to improve code
-readability. In some future version they may actually do different
-things.
-
-As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was
-added. It expands the sample depth without changing tRNS to alpha.
-
-As of libpng version 1.5.2, png_set_expand_16() was added. It behaves as
-png_set_expand(); however, the resultant channels have 16 bits rather than 8.
-Use this when the output color or gray channels are made linear to avoid fairly
-severe accuracy loss.
-
- if (bit_depth < 16)
- png_set_expand_16(png_ptr);
-
-PNG can have files with 16 bits per channel. If you only can handle
-8 bits per channel, this will strip the pixels down to 8-bit.
-
- if (bit_depth == 16)
-#if PNG_LIBPNG_VER >= 10504
- png_set_scale_16(png_ptr);
-#else
- png_set_strip_16(png_ptr);
-#endif
-
-(The more accurate "png_set_scale_16()" API became available in libpng version
-1.5.4).
-
-If you need to process the alpha channel on the image separately from the image
-data (for example if you convert it to a bitmap mask) it is possible to have
-libpng strip the channel leaving just RGB or gray data:
-
- if (color_type & PNG_COLOR_MASK_ALPHA)
- png_set_strip_alpha(png_ptr);
-
-If you strip the alpha channel you need to find some other way of dealing with
-the information. If, instead, you want to convert the image to an opaque
-version with no alpha channel use png_set_background; see below.
-
-As of libpng version 1.5.2, almost all useful expansions are supported, the
-major ommissions are conversion of grayscale to indexed images (which can be
-done trivially in the application) and conversion of indexed to grayscale (which
-can be done by a trivial manipulation of the palette.)
-
-In the following table, the 01 means grayscale with depth<8, 31 means
-indexed with depth<8, other numerals represent the color type, "T" means
-the tRNS chunk is present, A means an alpha channel is present, and O
-means tRNS or alpha is present but all pixels in the image are opaque.
-
- FROM 01 31 0 0T 0O 2 2T 2O 3 3T 3O 4A 4O 6A 6O
- TO
- 01 - [G] - - - - - - - - - - - - -
- 31 [Q] Q [Q] [Q] [Q] Q Q Q Q Q Q [Q] [Q] Q Q
- 0 1 G + . . G G G G G G B B GB GB
- 0T lt Gt t + . Gt G G Gt G G Bt Bt GBt GBt
- 0O lt Gt t . + Gt Gt G Gt Gt G Bt Bt GBt GBt
- 2 C P C C C + . . C - - CB CB B B
- 2T Ct - Ct C C t + t - - - CBt CBt Bt Bt
- 2O Ct - Ct C C t t + - - - CBt CBt Bt Bt
- 3 [Q] p [Q] [Q] [Q] Q Q Q + . . [Q] [Q] Q Q
- 3T [Qt] p [Qt][Q] [Q] Qt Qt Qt t + t [Qt][Qt] Qt Qt
- 3O [Qt] p [Qt][Q] [Q] Qt Qt Qt t t + [Qt][Qt] Qt Qt
- 4A lA G A T T GA GT GT GA GT GT + BA G GBA
- 4O lA GBA A T T GA GT GT GA GT GT BA + GBA G
- 6A CA PA CA C C A T tT PA P P C CBA + BA
- 6O CA PBA CA C C A tT T PA P P CBA C BA +
-
-Within the matrix,
- "+" identifies entries where 'from' and 'to' are the same.
- "-" means the transformation is not supported.
- "." means nothing is necessary (a tRNS chunk can just be ignored).
- "t" means the transformation is obtained by png_set_tRNS.
- "A" means the transformation is obtained by png_set_add_alpha().
- "X" means the transformation is obtained by png_set_expand().
- "1" means the transformation is obtained by
- png_set_expand_gray_1_2_4_to_8() (and by png_set_expand()
- if there is no transparency in the original or the final
- format).
- "C" means the transformation is obtained by png_set_gray_to_rgb().
- "G" means the transformation is obtained by png_set_rgb_to_gray().
- "P" means the transformation is obtained by
- png_set_expand_palette_to_rgb().
- "p" means the transformation is obtained by png_set_packing().
- "Q" means the transformation is obtained by png_set_quantize().
- "T" means the transformation is obtained by
- png_set_tRNS_to_alpha().
- "B" means the transformation is obtained by
- png_set_background(), or png_strip_alpha().
-
-When an entry has multiple transforms listed all are required to cause the
-right overall transformation. When two transforms are separated by a comma
-either will do the job. When transforms are enclosed in [] the transform should
-do the job but this is currently unimplemented - a different format will result
-if the suggested transformations are used.
-
-In PNG files, the alpha channel in an image
-is the level of opacity. If you need the alpha channel in an image to
-be the level of transparency instead of opacity, you can invert the
-alpha channel (or the tRNS chunk data) after it's read, so that 0 is
-fully opaque and 255 (in 8-bit or paletted images) or 65535 (in 16-bit
-images) is fully transparent, with
-
- png_set_invert_alpha(png_ptr);
-
-PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as
-they can, resulting in, for example, 8 pixels per byte for 1 bit
-files. This code expands to 1 pixel per byte without changing the
-values of the pixels:
-
- if (bit_depth < 8)
- png_set_packing(png_ptr);
-
-PNG files have possible bit depths of 1, 2, 4, 8, and 16. All pixels
-stored in a PNG image have been "scaled" or "shifted" up to the next
-higher possible bit depth (e.g. from 5 bits/sample in the range [0,31]
-to 8 bits/sample in the range [0, 255]). However, it is also possible
-to convert the PNG pixel data back to the original bit depth of the
-image. This call reduces the pixels back down to the original bit depth:
-
- png_color_8p sig_bit;
-
- if (png_get_sBIT(png_ptr, info_ptr, &sig_bit))
- png_set_shift(png_ptr, sig_bit);
-
-PNG files store 3-color pixels in red, green, blue order. This code
-changes the storage of the pixels to blue, green, red:
-
- if (color_type == PNG_COLOR_TYPE_RGB ||
- color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- png_set_bgr(png_ptr);
-
-PNG files store RGB pixels packed into 3 or 6 bytes. This code expands them
-into 4 or 8 bytes for windowing systems that need them in this format:
-
- if (color_type == PNG_COLOR_TYPE_RGB)
- png_set_filler(png_ptr, filler, PNG_FILLER_BEFORE);
-
-where "filler" is the 8-bit or 16-bit number to fill with, and the location
-is either PNG_FILLER_BEFORE or PNG_FILLER_AFTER, depending upon whether
-you want the filler before the RGB or after. When filling an 8-bit pixel,
-the least significant 8 bits of the number are used, if a 16-bit number is
-supplied. This transformation does not affect images that already have full
-alpha channels. To add an opaque alpha channel, use filler=0xffff and
-PNG_FILLER_AFTER which will generate RGBA pixels.
-
-Note that png_set_filler() does not change the color type. If you want
-to do that, you can add a true alpha channel with
-
- if (color_type == PNG_COLOR_TYPE_RGB ||
- color_type == PNG_COLOR_TYPE_GRAY)
- png_set_add_alpha(png_ptr, filler, PNG_FILLER_AFTER);
-
-where "filler" contains the alpha value to assign to each pixel.
-The png_set_add_alpha() function was added in libpng-1.2.7.
-
-If you are reading an image with an alpha channel, and you need the
-data as ARGB instead of the normal PNG format RGBA:
-
- if (color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- png_set_swap_alpha(png_ptr);
-
-For some uses, you may want a grayscale image to be represented as
-RGB. This code will do that conversion:
-
- if (color_type == PNG_COLOR_TYPE_GRAY ||
- color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- png_set_gray_to_rgb(png_ptr);
-
-Conversely, you can convert an RGB or RGBA image to grayscale or grayscale
-with alpha.
-
- if (color_type == PNG_COLOR_TYPE_RGB ||
- color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- png_set_rgb_to_gray(png_ptr, error_action,
- double red_weight, double green_weight);
-
- error_action = 1: silently do the conversion
-
- error_action = 2: issue a warning if the original
- image has any pixel where
- red != green or red != blue
-
- error_action = 3: issue an error and abort the
- conversion if the original
- image has any pixel where
- red != green or red != blue
-
- red_weight: weight of red component
-
- green_weight: weight of green component
- If either weight is negative, default
- weights are used.
-
-In the corresponding fixed point API the red_weight and green_weight values are
-simply scaled by 100,000:
-
- png_set_rgb_to_gray(png_ptr, error_action,
- png_fixed_point red_weight,
- png_fixed_point green_weight);
-
-If you have set error_action = 1 or 2, you can
-later check whether the image really was gray, after processing
-the image rows, with the png_get_rgb_to_gray_status(png_ptr) function.
-It will return a png_byte that is zero if the image was gray or
-1 if there were any non-gray pixels. Background and sBIT data
-will be silently converted to grayscale, using the green channel
-data for sBIT, regardless of the error_action setting.
-
-The default values come from the PNG file cHRM chunk if present; otherwise, the
-defaults correspond to the ITU-R recommendation 709, and also the sRGB color
-space, as recommended in the Charles Poynton's Colour FAQ,
-Copyright (c) 2006-11-28 Charles Poynton, in section 9:
-
-<http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html#RTFToC9>
-
- Y = 0.2126 * R + 0.7152 * G + 0.0722 * B
-
-Previous versions of this document, 1998 through 2002, recommended a slightly
-different formula:
-
- Y = 0.212671 * R + 0.715160 * G + 0.072169 * B
-
-Libpng uses an integer approximation:
-
- Y = (6968 * R + 23434 * G + 2366 * B)/32768
-
-The calculation is done in a linear colorspace, if the image gamma
-can be determined.
-
-The png_set_background() function has been described already; it tells libpng to
-composite images with alpha or simple transparency against the supplied
-background color. For compatibility with versions of libpng earlier than
-libpng-1.5.4 it is recommended that you call the function after reading the file
-header, even if you don't want to use the color in a bKGD chunk, if one exists.
-
-If the PNG file contains a bKGD chunk (PNG_INFO_bKGD valid),
-you may use this color, or supply another color more suitable for
-the current display (e.g., the background color from a web page). You
-need to tell libpng how the color is represented, both the format of the
-component values in the color (the number of bits) and the gamma encoding of the
-color. The function takes two arguments, background_gamma_mode and need_expand
-to convey this information; however, only two combinations are likely to be
-useful:
-
- png_color_16 my_background;
- png_color_16p image_background;
-
- if (png_get_bKGD(png_ptr, info_ptr, &image_background))
- png_set_background(png_ptr, image_background,
- PNG_BACKGROUND_GAMMA_FILE, 1/*needs to be expanded*/, 1);
- else
- png_set_background(png_ptr, &my_background,
- PNG_BACKGROUND_GAMMA_SCREEN, 0/*do not expand*/, 1);
-
-The second call was described above - my_background is in the format of the
-final, display, output produced by libpng. Because you now know the format of
-the PNG it is possible to avoid the need to choose either 8-bit or 16-bit
-output and to retain palette images (the palette colors will be modified
-appropriately and the tRNS chunk removed.) However, if you are doing this,
-take great care not to ask for transformations without checking first that
-they apply!
-
-In the first call the background color has the original bit depth and color type
-of the PNG file. So, for palette images the color is supplied as a palette
-index and for low bit greyscale images the color is a reduced bit value in
-image_background->gray.
-
-If you didn't call png_set_gamma() before reading the file header, for example
-if you need your code to remain compatible with older versions of libpng prior
-to libpng-1.5.4, this is the place to call it.
-
-Do not call it if you called png_set_alpha_mode(); doing so will damage the
-settings put in place by png_set_alpha_mode(). (If png_set_alpha_mode() is
-supported then you can certainly do png_set_gamma() before reading the PNG
-header.)
-
-This API unconditionally sets the screen and file gamma values, so it will
-override the value in the PNG file unless it is called before the PNG file
-reading starts. For this reason you must always call it with the PNG file
-value when you call it in this position:
-
- if (png_get_gAMA(png_ptr, info_ptr, &file_gamma))
- png_set_gamma(png_ptr, screen_gamma, file_gamma);
-
- else
- png_set_gamma(png_ptr, screen_gamma, 0.45455);
-
-If you need to reduce an RGB file to a paletted file, or if a paletted
-file has more entries than will fit on your screen, png_set_quantize()
-will do that. Note that this is a simple match quantization that merely
-finds the closest color available. This should work fairly well with
-optimized palettes, but fairly badly with linear color cubes. If you
-pass a palette that is larger than maximum_colors, the file will
-reduce the number of colors in the palette so it will fit into
-maximum_colors. If there is a histogram, libpng will use it to make
-more intelligent choices when reducing the palette. If there is no
-histogram, it may not do as good a job.
-
- if (color_type & PNG_COLOR_MASK_COLOR)
- {
- if (png_get_valid(png_ptr, info_ptr,
- PNG_INFO_PLTE))
- {
- png_uint_16p histogram = NULL;
-
- png_get_hIST(png_ptr, info_ptr,
- &histogram);
- png_set_quantize(png_ptr, palette, num_palette,
- max_screen_colors, histogram, 1);
- }
-
- else
- {
- png_color std_color_cube[MAX_SCREEN_COLORS] =
- { ... colors ... };
-
- png_set_quantize(png_ptr, std_color_cube,
- MAX_SCREEN_COLORS, MAX_SCREEN_COLORS,
- NULL,0);
- }
- }
-
-PNG files describe monochrome as black being zero and white being one.
-The following code will reverse this (make black be one and white be
-zero):
-
- if (bit_depth == 1 && color_type == PNG_COLOR_TYPE_GRAY)
- png_set_invert_mono(png_ptr);
-
-This function can also be used to invert grayscale and gray-alpha images:
-
- if (color_type == PNG_COLOR_TYPE_GRAY ||
- color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- png_set_invert_mono(png_ptr);
-
-PNG files store 16-bit pixels in network byte order (big-endian,
-ie. most significant bits first). This code changes the storage to the
-other way (little-endian, i.e. least significant bits first, the
-way PCs store them):
-
- if (bit_depth == 16)
- png_set_swap(png_ptr);
-
-If you are using packed-pixel images (1, 2, or 4 bits/pixel), and you
-need to change the order the pixels are packed into bytes, you can use:
-
- if (bit_depth < 8)
- png_set_packswap(png_ptr);
-
-Finally, you can write your own transformation function if none of
-the existing ones meets your needs. This is done by setting a callback
-with
-
- png_set_read_user_transform_fn(png_ptr,
- read_transform_fn);
-
-You must supply the function
-
- void read_transform_fn(png_structp png_ptr, png_row_infop
- row_info, png_bytep data)
-
-See pngtest.c for a working example. Your function will be called
-after all of the other transformations have been processed. Take care with
-interlaced images if you do the interlace yourself - the width of the row is the
-width in 'row_info', not the overall image width.
-
-If supported, libpng provides two information routines that you can use to find
-where you are in processing the image:
-
- png_get_current_pass_number(png_structp png_ptr);
- png_get_current_row_number(png_structp png_ptr);
-
-Don't try using these outside a transform callback - firstly they are only
-supported if user transforms are supported, secondly they may well return
-unexpected results unless the row is actually being processed at the moment they
-are called.
-
-With interlaced
-images the value returned is the row in the input sub-image image. Use
-PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to
-find the output pixel (x,y) given an interlaced sub-image pixel (row,col,pass).
-
-The discussion of interlace handling above contains more information on how to
-use these values.
-
-You can also set up a pointer to a user structure for use by your
-callback function, and you can inform libpng that your transform
-function will change the number of channels or bit depth with the
-function
-
- png_set_user_transform_info(png_ptr, user_ptr,
- user_depth, user_channels);
-
-The user's application, not libpng, is responsible for allocating and
-freeing any memory required for the user structure.
-
-You can retrieve the pointer via the function
-png_get_user_transform_ptr(). For example:
-
- voidp read_user_transform_ptr =
- png_get_user_transform_ptr(png_ptr);
-
-The last thing to handle is interlacing; this is covered in detail below,
-but you must call the function here if you want libpng to handle expansion
-of the interlaced image.
-
- number_of_passes = png_set_interlace_handling(png_ptr);
-
-After setting the transformations, libpng can update your png_info
-structure to reflect any transformations you've requested with this
-call.
-
- png_read_update_info(png_ptr, info_ptr);
-
-This is most useful to update the info structure's rowbytes
-field so you can use it to allocate your image memory. This function
-will also update your palette with the correct screen_gamma and
-background if these have been given with the calls above. You may
-only call png_read_update_info() once with a particular info_ptr.
-
-After you call png_read_update_info(), you can allocate any
-memory you need to hold the image. The row data is simply
-raw byte data for all forms of images. As the actual allocation
-varies among applications, no example will be given. If you
-are allocating one large chunk, you will need to build an
-array of pointers to each row, as it will be needed for some
-of the functions below.
-
-Be sure that your platform can allocate the buffer that you'll need.
-libpng internally checks for oversize width, but you'll need to
-do your own check for number_of_rows*width*pixel_size if you are using
-a multiple-row buffer:
-
- /* Guard against integer overflow */
- if (number_of_rows > PNG_SIZE_MAX/(width*pixel_size)) {
- png_error(png_ptr,"image_data buffer would be too large");
- }
-
-Remember: Before you call png_read_update_info(), the png_get_*()
-functions return the values corresponding to the original PNG image.
-After you call png_read_update_info the values refer to the image
-that libpng will output. Consequently you must call all the png_set_
-functions before you call png_read_update_info(). This is particularly
-important for png_set_interlace_handling() - if you are going to call
-png_read_update_info() you must call png_set_interlace_handling() before
-it unless you want to receive interlaced output.
-
-Reading image data
-
-After you've allocated memory, you can read the image data.
-The simplest way to do this is in one function call. If you are
-allocating enough memory to hold the whole image, you can just
-call png_read_image() and libpng will read in all the image data
-and put it in the memory area supplied. You will need to pass in
-an array of pointers to each row.
-
-This function automatically handles interlacing, so you don't
-need to call png_set_interlace_handling() (unless you call
-png_read_update_info()) or call this function multiple times, or any
-of that other stuff necessary with png_read_rows().
-
- png_read_image(png_ptr, row_pointers);
-
-where row_pointers is:
-
- png_bytep row_pointers[height];
-
-You can point to void or char or whatever you use for pixels.
-
-If you don't want to read in the whole image at once, you can
-use png_read_rows() instead. If there is no interlacing (check
-interlace_type == PNG_INTERLACE_NONE), this is simple:
-
- png_read_rows(png_ptr, row_pointers, NULL,
- number_of_rows);
-
-where row_pointers is the same as in the png_read_image() call.
-
-If you are doing this just one row at a time, you can do this with
-a single row_pointer instead of an array of row_pointers:
-
- png_bytep row_pointer = row;
- png_read_row(png_ptr, row_pointer, NULL);
-
-If the file is interlaced (interlace_type != 0 in the IHDR chunk), things
-get somewhat harder. The only current (PNG Specification version 1.2)
-interlacing type for PNG is (interlace_type == PNG_INTERLACE_ADAM7);
-a somewhat complicated 2D interlace scheme, known as Adam7, that
-breaks down an image into seven smaller images of varying size, based
-on an 8x8 grid. This number is defined (from libpng 1.5) as
-PNG_INTERLACE_ADAM7_PASSES in png.h
-
-libpng can fill out those images or it can give them to you "as is".
-It is almost always better to have libpng handle the interlacing for you.
-If you want the images filled out, there are two ways to do that. The one
-mentioned in the PNG specification is to expand each pixel to cover
-those pixels that have not been read yet (the "rectangle" method).
-This results in a blocky image for the first pass, which gradually
-smooths out as more pixels are read. The other method is the "sparkle"
-method, where pixels are drawn only in their final locations, with the
-rest of the image remaining whatever colors they were initialized to
-before the start of the read. The first method usually looks better,
-but tends to be slower, as there are more pixels to put in the rows.
-
-If, as is likely, you want libpng to expand the images, call this before
-calling png_start_read_image() or png_read_update_info():
-
- if (interlace_type == PNG_INTERLACE_ADAM7)
- number_of_passes
- = png_set_interlace_handling(png_ptr);
-
-This will return the number of passes needed. Currently, this is seven,
-but may change if another interlace type is added. This function can be
-called even if the file is not interlaced, where it will return one pass.
-You then need to read the whole image 'number_of_passes' times. Each time
-will distribute the pixels from the current pass to the correct place in
-the output image, so you need to supply the same rows to png_read_rows in
-each pass.
-
-If you are not going to display the image after each pass, but are
-going to wait until the entire image is read in, use the sparkle
-effect. This effect is faster and the end result of either method
-is exactly the same. If you are planning on displaying the image
-after each pass, the "rectangle" effect is generally considered the
-better looking one.
-
-If you only want the "sparkle" effect, just call png_read_row() or
-png_read_rows() as
-normal, with the third parameter NULL. Make sure you make pass over
-the image number_of_passes times, and you don't change the data in the
-rows between calls. You can change the locations of the data, just
-not the data. Each pass only writes the pixels appropriate for that
-pass, and assumes the data from previous passes is still valid.
-
- png_read_rows(png_ptr, row_pointers, NULL,
- number_of_rows);
- or
- png_read_row(png_ptr, row_pointers, NULL);
-
-If you only want the first effect (the rectangles), do the same as
-before except pass the row buffer in the third parameter, and leave
-the second parameter NULL.
-
- png_read_rows(png_ptr, NULL, row_pointers,
- number_of_rows);
- or
- png_read_row(png_ptr, NULL, row_pointers);
-
-If you don't want libpng to handle the interlacing details, just call
-png_read_rows() PNG_INTERLACE_ADAM7_PASSES times to read in all the images.
-Each of the images is a valid image by itself; however, you will almost
-certainly need to distribute the pixels from each sub-image to the
-correct place. This is where everything gets very tricky.
-
-If you want to retrieve the separate images you must pass the correct
-number of rows to each successive call of png_read_rows(). The calculation
-gets pretty complicated for small images, where some sub-images may
-not even exist because either their width or height ends up zero.
-libpng provides two macros to help you in 1.5 and later versions:
-
- png_uint_32 width = PNG_PASS_COLS(image_width, pass_number);
- png_uint_32 height = PNG_PASS_ROWS(image_height, pass_number);
-
-Respectively these tell you the width and height of the sub-image
-corresponding to the numbered pass. 'pass' is in in the range 0 to 6 -
-this can be confusing because the specification refers to the same passes
-as 1 to 7! Be careful, you must check both the width and height before
-calling png_read_rows() and not call it for that pass if either is zero.
-
-You can, of course, read each sub-image row by row. If you want to
-produce optimal code to make a pixel-by-pixel transformation of an
-interlaced image this is the best approach; read each row of each pass,
-transform it, and write it out to a new interlaced image.
-
-If you want to de-interlace the image yourself libpng provides further
-macros to help that tell you where to place the pixels in the output image.
-Because the interlacing scheme is rectangular - sub-image pixels are always
-arranged on a rectangular grid - all you need to know for each pass is the
-starting column and row in the output image of the first pixel plus the
-spacing between each pixel. As of libpng 1.5 there are four macros to
-retrieve this information:
-
- png_uint_32 x = PNG_PASS_START_COL(pass);
- png_uint_32 y = PNG_PASS_START_ROW(pass);
- png_uint_32 xStep = 1U << PNG_PASS_COL_SHIFT(pass);
- png_uint_32 yStep = 1U << PNG_PASS_ROW_SHIFT(pass);
-
-These allow you to write the obvious loop:
-
- png_uint_32 input_y = 0;
- png_uint_32 output_y = PNG_PASS_START_ROW(pass);
-
- while (output_y < output_image_height)
- {
- png_uint_32 input_x = 0;
- png_uint_32 output_x = PNG_PASS_START_COL(pass);
-
- while (output_x < output_image_width)
- {
- image[output_y][output_x] =
- subimage[pass][input_y][input_x++];
-
- output_x += xStep;
- }
-
- ++input_y;
- output_y += yStep;
- }
-
-Notice that the steps between successive output rows and columns are
-returned as shifts. This is possible because the pixels in the subimages
-are always a power of 2 apart - 1, 2, 4 or 8 pixels - in the original
-image. In practice you may need to directly calculate the output coordinate
-given an input coordinate. libpng provides two further macros for this
-purpose:
-
- png_uint_32 output_x = PNG_COL_FROM_PASS_COL(input_x, pass);
- png_uint_32 output_y = PNG_ROW_FROM_PASS_ROW(input_y, pass);
-
-Finally a pair of macros are provided to tell you if a particular image
-row or column appears in a given pass:
-
- int col_in_pass = PNG_COL_IN_INTERLACE_PASS(output_x, pass);
- int row_in_pass = PNG_ROW_IN_INTERLACE_PASS(output_y, pass);
-
-Bear in mind that you will probably also need to check the width and height
-of the pass in addition to the above to be sure the pass even exists!
-
-With any luck you are convinced by now that you don't want to do your own
-interlace handling. In reality normally the only good reason for doing this
-is if you are processing PNG files on a pixel-by-pixel basis and don't want
-to load the whole file into memory when it is interlaced.
-
-libpng includes a test program, pngvalid, that illustrates reading and
-writing of interlaced images. If you can't get interlacing to work in your
-code and don't want to leave it to libpng (the recommended approach), see
-how pngvalid.c does it.
-
-Finishing a sequential read
-
-After you are finished reading the image through the
-low-level interface, you can finish reading the file.
-
-If you want to use a different crc action for handling CRC errors in
-chunks after the image data, you can call png_set_crc_action()
-again at this point.
-
-If you are interested in comments or time, which may be stored either
-before or after the image data, you should pass the separate png_info
-struct if you want to keep the comments from before and after the image
-separate.
-
- png_infop end_info = png_create_info_struct(png_ptr);
-
- if (!end_info)
- {
- png_destroy_read_struct(&png_ptr, &info_ptr,
- (png_infopp)NULL);
- return ERROR;
- }
-
- png_read_end(png_ptr, end_info);
-
-If you are not interested, you should still call png_read_end()
-but you can pass NULL, avoiding the need to create an end_info structure.
-If you do this, libpng will not process any chunks after IDAT other than
-skipping over them and perhaps (depending on whether you have called
-png_set_crc_action) checking their CRCs while looking for the IEND chunk.
-
- png_read_end(png_ptr, (png_infop)NULL);
-
-If you don't call png_read_end(), then your file pointer will be
-left pointing to the first chunk after the last IDAT, which is probably
-not what you want if you expect to read something beyond the end of
-the PNG datastream.
-
-When you are done, you can free all memory allocated by libpng like this:
-
- png_destroy_read_struct(&png_ptr, &info_ptr,
- &end_info);
-
-or, if you didn't create an end_info structure,
-
- png_destroy_read_struct(&png_ptr, &info_ptr,
- (png_infopp)NULL);
-
-It is also possible to individually free the info_ptr members that
-point to libpng-allocated storage with the following function:
-
- png_free_data(png_ptr, info_ptr, mask, seq)
-
- mask - identifies data to be freed, a mask
- containing the bitwise OR of one or
- more of
- PNG_FREE_PLTE, PNG_FREE_TRNS,
- PNG_FREE_HIST, PNG_FREE_ICCP,
- PNG_FREE_PCAL, PNG_FREE_ROWS,
- PNG_FREE_SCAL, PNG_FREE_SPLT,
- PNG_FREE_TEXT, PNG_FREE_UNKN,
- or simply PNG_FREE_ALL
-
- seq - sequence number of item to be freed
- (-1 for all items)
-
-This function may be safely called when the relevant storage has
-already been freed, or has not yet been allocated, or was allocated
-by the user and not by libpng, and will in those cases do nothing.
-The "seq" parameter is ignored if only one item of the selected data
-type, such as PLTE, is allowed. If "seq" is not -1, and multiple items
-are allowed for the data type identified in the mask, such as text or
-sPLT, only the n'th item in the structure is freed, where n is "seq".
-
-The default behavior is only to free data that was allocated internally
-by libpng. This can be changed, so that libpng will not free the data,
-or so that it will free data that was allocated by the user with png_malloc()
-or png_calloc() and passed in via a png_set_*() function, with
-
- png_data_freer(png_ptr, info_ptr, freer, mask)
-
- freer - one of
- PNG_DESTROY_WILL_FREE_DATA
- PNG_SET_WILL_FREE_DATA
- PNG_USER_WILL_FREE_DATA
-
- mask - which data elements are affected
- same choices as in png_free_data()
-
-This function only affects data that has already been allocated.
-You can call this function after reading the PNG data but before calling
-any png_set_*() functions, to control whether the user or the png_set_*()
-function is responsible for freeing any existing data that might be present,
-and again after the png_set_*() functions to control whether the user
-or png_destroy_*() is supposed to free the data. When the user assumes
-responsibility for libpng-allocated data, the application must use
-png_free() to free it, and when the user transfers responsibility to libpng
-for data that the user has allocated, the user must have used png_malloc()
-or png_calloc() to allocate it.
-
-If you allocated your row_pointers in a single block, as suggested above in
-the description of the high level read interface, you must not transfer
-responsibility for freeing it to the png_set_rows or png_read_destroy function,
-because they would also try to free the individual row_pointers[i].
-
-If you allocated text_ptr.text, text_ptr.lang, and text_ptr.translated_keyword
-separately, do not transfer responsibility for freeing text_ptr to libpng,
-because when libpng fills a png_text structure it combines these members with
-the key member, and png_free_data() will free only text_ptr.key. Similarly,
-if you transfer responsibility for free'ing text_ptr from libpng to your
-application, your application must not separately free those members.
-
-The png_free_data() function will turn off the "valid" flag for anything
-it frees. If you need to turn the flag off for a chunk that was freed by
-your application instead of by libpng, you can use
-
- png_set_invalid(png_ptr, info_ptr, mask);
-
- mask - identifies the chunks to be made invalid,
- containing the bitwise OR of one or
- more of
- PNG_INFO_gAMA, PNG_INFO_sBIT,
- PNG_INFO_cHRM, PNG_INFO_PLTE,
- PNG_INFO_tRNS, PNG_INFO_bKGD,
- PNG_INFO_eXIf,
- PNG_INFO_hIST, PNG_INFO_pHYs,
- PNG_INFO_oFFs, PNG_INFO_tIME,
- PNG_INFO_pCAL, PNG_INFO_sRGB,
- PNG_INFO_iCCP, PNG_INFO_sPLT,
- PNG_INFO_sCAL, PNG_INFO_IDAT
-
-For a more compact example of reading a PNG image, see the file example.c.
-
-Reading PNG files progressively
-
-The progressive reader is slightly different from the non-progressive
-reader. Instead of calling png_read_info(), png_read_rows(), and
-png_read_end(), you make one call to png_process_data(), which calls
-callbacks when it has the info, a row, or the end of the image. You
-set up these callbacks with png_set_progressive_read_fn(). You don't
-have to worry about the input/output functions of libpng, as you are
-giving the library the data directly in png_process_data(). I will
-assume that you have read the section on reading PNG files above,
-so I will only highlight the differences (although I will show
-all of the code).
-
-png_structp png_ptr;
-png_infop info_ptr;
-
- /* An example code fragment of how you would
- initialize the progressive reader in your
- application. */
- int
- initialize_png_reader()
- {
- png_ptr = png_create_read_struct
- (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr,
- user_error_fn, user_warning_fn);
-
- if (!png_ptr)
- return ERROR;
-
- info_ptr = png_create_info_struct(png_ptr);
-
- if (!info_ptr)
- {
- png_destroy_read_struct(&png_ptr,
- (png_infopp)NULL, (png_infopp)NULL);
- return ERROR;
- }
-
- if (setjmp(png_jmpbuf(png_ptr)))
- {
- png_destroy_read_struct(&png_ptr, &info_ptr,
- (png_infopp)NULL);
- return ERROR;
- }
-
- /* This one's new. You can provide functions
- to be called when the header info is valid,
- when each row is completed, and when the image
- is finished. If you aren't using all functions,
- you can specify NULL parameters. Even when all
- three functions are NULL, you need to call
- png_set_progressive_read_fn(). You can use
- any struct as the user_ptr (cast to a void pointer
- for the function call), and retrieve the pointer
- from inside the callbacks using the function
-
- png_get_progressive_ptr(png_ptr);
-
- which will return a void pointer, which you have
- to cast appropriately.
- */
- png_set_progressive_read_fn(png_ptr, (void *)user_ptr,
- info_callback, row_callback, end_callback);
-
- return 0;
- }
-
- /* A code fragment that you call as you receive blocks
- of data */
- int
- process_data(png_bytep buffer, png_uint_32 length)
- {
- if (setjmp(png_jmpbuf(png_ptr)))
- {
- png_destroy_read_struct(&png_ptr, &info_ptr,
- (png_infopp)NULL);
- return ERROR;
- }
-
- /* This one's new also. Simply give it a chunk
- of data from the file stream (in order, of
- course). On machines with segmented memory
- models machines, don't give it any more than
- 64K. The library seems to run fine with sizes
- of 4K. Although you can give it much less if
- necessary (I assume you can give it chunks of
- 1 byte, I haven't tried less than 256 bytes
- yet). When this function returns, you may
- want to display any rows that were generated
- in the row callback if you don't already do
- so there.
- */
- png_process_data(png_ptr, info_ptr, buffer, length);
-
- /* At this point you can call png_process_data_skip if
- you want to handle data the library will skip yourself;
- it simply returns the number of bytes to skip (and stops
- libpng skipping that number of bytes on the next
- png_process_data call).
- return 0;
- }
-
- /* This function is called (as set by
- png_set_progressive_read_fn() above) when enough data
- has been supplied so all of the header has been
- read.
- */
- void
- info_callback(png_structp png_ptr, png_infop info)
- {
- /* Do any setup here, including setting any of
- the transformations mentioned in the Reading
- PNG files section. For now, you _must_ call
- either png_start_read_image() or
- png_read_update_info() after all the
- transformations are set (even if you don't set
- any). You may start getting rows before
- png_process_data() returns, so this is your
- last chance to prepare for that.
-
- This is where you turn on interlace handling,
- assuming you don't want to do it yourself.
-
- If you need to you can stop the processing of
- your original input data at this point by calling
- png_process_data_pause. This returns the number
- of unprocessed bytes from the last png_process_data
- call - it is up to you to ensure that the next call
- sees these bytes again. If you don't want to bother
- with this you can get libpng to cache the unread
- bytes by setting the 'save' parameter (see png.h) but
- then libpng will have to copy the data internally.
- */
- }
-
- /* This function is called when each row of image
- data is complete */
- void
- row_callback(png_structp png_ptr, png_bytep new_row,
- png_uint_32 row_num, int pass)
- {
- /* If the image is interlaced, and you turned
- on the interlace handler, this function will
- be called for every row in every pass. Some
- of these rows will not be changed from the
- previous pass. When the row is not changed,
- the new_row variable will be NULL. The rows
- and passes are called in order, so you don't
- really need the row_num and pass, but I'm
- supplying them because it may make your life
- easier.
-
- If you did not turn on interlace handling then
- the callback is called for each row of each
- sub-image when the image is interlaced. In this
- case 'row_num' is the row in the sub-image, not
- the row in the output image as it is in all other
- cases.
-
- For the non-NULL rows of interlaced images when
- you have switched on libpng interlace handling,
- you must call png_progressive_combine_row()
- passing in the row and the old row. You can
- call this function for NULL rows (it will just
- return) and for non-interlaced images (it just
- does the memcpy for you) if it will make the
- code easier. Thus, you can just do this for
- all cases if you switch on interlace handling;
- */
-
- png_progressive_combine_row(png_ptr, old_row,
- new_row);
-
- /* where old_row is what was displayed
- previously for the row. Note that the first
- pass (pass == 0, really) will completely cover
- the old row, so the rows do not have to be
- initialized. After the first pass (and only
- for interlaced images), you will have to pass
- the current row, and the function will combine
- the old row and the new row.
-
- You can also call png_process_data_pause in this
- callback - see above.
- */
- }
-
- void
- end_callback(png_structp png_ptr, png_infop info)
- {
- /* This function is called after the whole image
- has been read, including any chunks after the
- image (up to and including the IEND). You
- will usually have the same info chunk as you
- had in the header, although some data may have
- been added to the comments and time fields.
-
- Most people won't do much here, perhaps setting
- a flag that marks the image as finished.
- */
- }
-
-
-
-IV. Writing
-
-Much of this is very similar to reading. However, everything of
-importance is repeated here, so you won't have to constantly look
-back up in the reading section to understand writing.
-
-Setup
-
-You will want to do the I/O initialization before you get into libpng,
-so if it doesn't work, you don't have anything to undo. If you are not
-using the standard I/O functions, you will need to replace them with
-custom writing functions. See the discussion under Customizing libpng.
-
- FILE *fp = fopen(file_name, "wb");
-
- if (!fp)
- return ERROR;
-
-Next, png_struct and png_info need to be allocated and initialized.
-As these can be both relatively large, you may not want to store these
-on the stack, unless you have stack space to spare. Of course, you
-will want to check if they return NULL. If you are also reading,
-you won't want to name your read structure and your write structure
-both "png_ptr"; you can call them anything you like, such as
-"read_ptr" and "write_ptr". Look at pngtest.c, for example.
-
- png_structp png_ptr = png_create_write_struct
- (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr,
- user_error_fn, user_warning_fn);
-
- if (!png_ptr)
- return ERROR;
-
- png_infop info_ptr = png_create_info_struct(png_ptr);
- if (!info_ptr)
- {
- png_destroy_write_struct(&png_ptr,
- (png_infopp)NULL);
- return ERROR;
- }
-
-If you want to use your own memory allocation routines,
-define PNG_USER_MEM_SUPPORTED and use
-png_create_write_struct_2() instead of png_create_write_struct():
-
- png_structp png_ptr = png_create_write_struct_2
- (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr,
- user_error_fn, user_warning_fn, (png_voidp)
- user_mem_ptr, user_malloc_fn, user_free_fn);
-
-After you have these structures, you will need to set up the
-error handling. When libpng encounters an error, it expects to
-longjmp() back to your routine. Therefore, you will need to call
-setjmp() and pass the png_jmpbuf(png_ptr). If you
-write the file from different routines, you will need to update
-the png_jmpbuf(png_ptr) every time you enter a new routine that will
-call a png_*() function. See your documentation of setjmp/longjmp
-for your compiler for more information on setjmp/longjmp. See
-the discussion on libpng error handling in the Customizing Libpng
-section below for more information on the libpng error handling.
-
- if (setjmp(png_jmpbuf(png_ptr)))
- {
- png_destroy_write_struct(&png_ptr, &info_ptr);
- fclose(fp);
- return ERROR;
- }
- ...
- return;
-
-If you would rather avoid the complexity of setjmp/longjmp issues,
-you can compile libpng with PNG_NO_SETJMP, in which case
-errors will result in a call to PNG_ABORT() which defaults to abort().
-
-You can #define PNG_ABORT() to a function that does something
-more useful than abort(), as long as your function does not
-return.
-
-Checking for invalid palette index on write was added at libpng
-1.5.10. If a pixel contains an invalid (out-of-range) index libpng issues
-a benign error. This is enabled by default because this condition is an
-error according to the PNG specification, Clause 11.3.2, but the error can
-be ignored in each png_ptr with
-
- png_set_check_for_invalid_index(png_ptr, 0);
-
-If the error is ignored, or if png_benign_error() treats it as a warning,
-any invalid pixels are written as-is by the encoder, resulting in an
-invalid PNG datastream as output. In this case the application is
-responsible for ensuring that the pixel indexes are in range when it writes
-a PLTE chunk with fewer entries than the bit depth would allow.
-
-Now you need to set up the output code. The default for libpng is to
-use the C function fwrite(). If you use this, you will need to pass a
-valid FILE * in the function png_init_io(). Be sure that the file is
-opened in binary mode. Again, if you wish to handle writing data in
-another way, see the discussion on libpng I/O handling in the Customizing
-Libpng section below.
-
- png_init_io(png_ptr, fp);
-
-If you are embedding your PNG into a datastream such as MNG, and don't
-want libpng to write the 8-byte signature, or if you have already
-written the signature in your application, use
-
- png_set_sig_bytes(png_ptr, 8);
-
-to inform libpng that it should not write a signature.
-
-Write callbacks
-
-At this point, you can set up a callback function that will be
-called after each row has been written, which you can use to control
-a progress meter or the like. It's demonstrated in pngtest.c.
-You must supply a function
-
- void write_row_callback(png_structp png_ptr, png_uint_32 row,
- int pass);
- {
- /* put your code here */
- }
-
-(You can give it another name that you like instead of "write_row_callback")
-
-To inform libpng about your function, use
-
- png_set_write_status_fn(png_ptr, write_row_callback);
-
-When this function is called the row has already been completely processed and
-it has also been written out. The 'row' and 'pass' refer to the next row to be
-handled. For the
-non-interlaced case the row that was just handled is simply one less than the
-passed in row number, and pass will always be 0. For the interlaced case the
-same applies unless the row value is 0, in which case the row just handled was
-the last one from one of the preceding passes. Because interlacing may skip a
-pass you cannot be sure that the preceding pass is just 'pass-1', if you really
-need to know what the last pass is record (row,pass) from the callback and use
-the last recorded value each time.
-
-As with the user transform you can find the output row using the
-PNG_ROW_FROM_PASS_ROW macro.
-
-You now have the option of modifying how the compression library will
-run. The following functions are mainly for testing, but may be useful
-in some cases, like if you need to write PNG files extremely fast and
-are willing to give up some compression, or if you want to get the
-maximum possible compression at the expense of slower writing. If you
-have no special needs in this area, let the library do what it wants by
-not calling this function at all, as it has been tuned to deliver a good
-speed/compression ratio. The second parameter to png_set_filter() is
-the filter method, for which the only valid values are 0 (as of the
-July 1999 PNG specification, version 1.2) or 64 (if you are writing
-a PNG datastream that is to be embedded in a MNG datastream). The third
-parameter is a flag that indicates which filter type(s) are to be tested
-for each scanline. See the PNG specification for details on the specific
-filter types.
-
-
- /* turn on or off filtering, and/or choose
- specific filters. You can use either a single
- PNG_FILTER_VALUE_NAME or the bitwise OR of one
- or more PNG_FILTER_NAME masks.
- */
- png_set_filter(png_ptr, 0,
- PNG_FILTER_NONE | PNG_FILTER_VALUE_NONE |
- PNG_FILTER_SUB | PNG_FILTER_VALUE_SUB |
- PNG_FILTER_UP | PNG_FILTER_VALUE_UP |
- PNG_FILTER_AVG | PNG_FILTER_VALUE_AVG |
- PNG_FILTER_PAETH | PNG_FILTER_VALUE_PAETH|
- PNG_ALL_FILTERS | PNG_FAST_FILTERS);
-
-If an application wants to start and stop using particular filters during
-compression, it should start out with all of the filters (to ensure that
-the previous row of pixels will be stored in case it's needed later),
-and then add and remove them after the start of compression.
-
-If you are writing a PNG datastream that is to be embedded in a MNG
-datastream, the second parameter can be either 0 or 64.
-
-The png_set_compression_*() functions interface to the zlib compression
-library, and should mostly be ignored unless you really know what you are
-doing. The only generally useful call is png_set_compression_level()
-which changes how much time zlib spends on trying to compress the image
-data. See the Compression Library (zlib.h and algorithm.txt, distributed
-with zlib) for details on the compression levels.
-
- #include zlib.h
-
- /* Set the zlib compression level */
- png_set_compression_level(png_ptr,
- Z_BEST_COMPRESSION);
-
- /* Set other zlib parameters for compressing IDAT */
- png_set_compression_mem_level(png_ptr, 8);
- png_set_compression_strategy(png_ptr,
- Z_DEFAULT_STRATEGY);
- png_set_compression_window_bits(png_ptr, 15);
- png_set_compression_method(png_ptr, 8);
- png_set_compression_buffer_size(png_ptr, 8192)
-
- /* Set zlib parameters for text compression
- * If you don't call these, the parameters
- * fall back on those defined for IDAT chunks
- */
- png_set_text_compression_mem_level(png_ptr, 8);
- png_set_text_compression_strategy(png_ptr,
- Z_DEFAULT_STRATEGY);
- png_set_text_compression_window_bits(png_ptr, 15);
- png_set_text_compression_method(png_ptr, 8);
-
-Setting the contents of info for output
-
-You now need to fill in the png_info structure with all the data you
-wish to write before the actual image. Note that the only thing you
-are allowed to write after the image is the text chunks and the time
-chunk (as of PNG Specification 1.2, anyway). See png_write_end() and
-the latest PNG specification for more information on that. If you
-wish to write them before the image, fill them in now, and flag that
-data as being valid. If you want to wait until after the data, don't
-fill them until png_write_end(). For all the fields in png_info and
-their data types, see png.h. For explanations of what the fields
-contain, see the PNG specification.
-
-Some of the more important parts of the png_info are:
-
- png_set_IHDR(png_ptr, info_ptr, width, height,
- bit_depth, color_type, interlace_type,
- compression_type, filter_method)
-
- width - holds the width of the image
- in pixels (up to 2^31).
-
- height - holds the height of the image
- in pixels (up to 2^31).
-
- bit_depth - holds the bit depth of one of the
- image channels.
- (valid values are 1, 2, 4, 8, 16
- and depend also on the
- color_type. See also significant
- bits (sBIT) below).
-
- color_type - describes which color/alpha
- channels are present.
- PNG_COLOR_TYPE_GRAY
- (bit depths 1, 2, 4, 8, 16)
- PNG_COLOR_TYPE_GRAY_ALPHA
- (bit depths 8, 16)
- PNG_COLOR_TYPE_PALETTE
- (bit depths 1, 2, 4, 8)
- PNG_COLOR_TYPE_RGB
- (bit_depths 8, 16)
- PNG_COLOR_TYPE_RGB_ALPHA
- (bit_depths 8, 16)
-
- PNG_COLOR_MASK_PALETTE
- PNG_COLOR_MASK_COLOR
- PNG_COLOR_MASK_ALPHA
-
- interlace_type - PNG_INTERLACE_NONE or
- PNG_INTERLACE_ADAM7
-
- compression_type - (must be
- PNG_COMPRESSION_TYPE_DEFAULT)
-
- filter_method - (must be PNG_FILTER_TYPE_DEFAULT
- or, if you are writing a PNG to
- be embedded in a MNG datastream,
- can also be
- PNG_INTRAPIXEL_DIFFERENCING)
-
-If you call png_set_IHDR(), the call must appear before any of the
-other png_set_*() functions, because they might require access to some of
-the IHDR settings. The remaining png_set_*() functions can be called
-in any order.
-
-If you wish, you can reset the compression_type, interlace_type, or
-filter_method later by calling png_set_IHDR() again; if you do this, the
-width, height, bit_depth, and color_type must be the same in each call.
-
- png_set_PLTE(png_ptr, info_ptr, palette,
- num_palette);
-
- palette - the palette for the file
- (array of png_color)
- num_palette - number of entries in the palette
-
-
- png_set_gAMA(png_ptr, info_ptr, file_gamma);
- png_set_gAMA_fixed(png_ptr, info_ptr, int_file_gamma);
-
- file_gamma - the gamma at which the image was
- created (PNG_INFO_gAMA)
-
- int_file_gamma - 100,000 times the gamma at which
- the image was created
-
- png_set_cHRM(png_ptr, info_ptr, white_x, white_y, red_x, red_y,
- green_x, green_y, blue_x, blue_y)
- png_set_cHRM_XYZ(png_ptr, info_ptr, red_X, red_Y, red_Z, green_X,
- green_Y, green_Z, blue_X, blue_Y, blue_Z)
- png_set_cHRM_fixed(png_ptr, info_ptr, int_white_x, int_white_y,
- int_red_x, int_red_y, int_green_x, int_green_y,
- int_blue_x, int_blue_y)
- png_set_cHRM_XYZ_fixed(png_ptr, info_ptr, int_red_X, int_red_Y,
- int_red_Z, int_green_X, int_green_Y, int_green_Z,
- int_blue_X, int_blue_Y, int_blue_Z)
-
- {white,red,green,blue}_{x,y}
- A color space encoding specified using the chromaticities
- of the end points and the white point.
-
- {red,green,blue}_{X,Y,Z}
- A color space encoding specified using the encoding end
- points - the CIE tristimulus specification of the intended
- color of the red, green and blue channels in the PNG RGB
- data. The white point is simply the sum of the three end
- points.
-
- png_set_sRGB(png_ptr, info_ptr, srgb_intent);
-
- srgb_intent - the rendering intent
- (PNG_INFO_sRGB) The presence of
- the sRGB chunk means that the pixel
- data is in the sRGB color space.
- This chunk also implies specific
- values of gAMA and cHRM. Rendering
- intent is the CSS-1 property that
- has been defined by the International
- Color Consortium
- (http://www.color.org).
- It can be one of
- PNG_sRGB_INTENT_SATURATION,
- PNG_sRGB_INTENT_PERCEPTUAL,
- PNG_sRGB_INTENT_ABSOLUTE, or
- PNG_sRGB_INTENT_RELATIVE.
-
-
- png_set_sRGB_gAMA_and_cHRM(png_ptr, info_ptr,
- srgb_intent);
-
- srgb_intent - the rendering intent
- (PNG_INFO_sRGB) The presence of the
- sRGB chunk means that the pixel
- data is in the sRGB color space.
- This function also causes gAMA and
- cHRM chunks with the specific values
- that are consistent with sRGB to be
- written.
-
- png_set_iCCP(png_ptr, info_ptr, name, compression_type,
- profile, proflen);
-
- name - The profile name.
-
- compression_type - The compression type; always
- PNG_COMPRESSION_TYPE_BASE for PNG 1.0.
- You may give NULL to this argument to
- ignore it.
-
- profile - International Color Consortium color
- profile data. May contain NULs.
-
- proflen - length of profile data in bytes.
-
- png_set_sBIT(png_ptr, info_ptr, sig_bit);
-
- sig_bit - the number of significant bits for
- (PNG_INFO_sBIT) each of the gray, red,
- green, and blue channels, whichever are
- appropriate for the given color type
- (png_color_16)
-
- png_set_tRNS(png_ptr, info_ptr, trans_alpha,
- num_trans, trans_color);
-
- trans_alpha - array of alpha (transparency)
- entries for palette (PNG_INFO_tRNS)
-
- num_trans - number of transparent entries
- (PNG_INFO_tRNS)
-
- trans_color - graylevel or color sample values
- (in order red, green, blue) of the
- single transparent color for
- non-paletted images (PNG_INFO_tRNS)
-
- png_set_eXIf_1(png_ptr, info_ptr, num_exif, exif);
-
- exif - Exif profile (array of
- png_byte) (PNG_INFO_eXIf)
-
- png_set_hIST(png_ptr, info_ptr, hist);
-
- hist - histogram of palette (array of
- png_uint_16) (PNG_INFO_hIST)
-
- png_set_tIME(png_ptr, info_ptr, mod_time);
-
- mod_time - time image was last modified
- (PNG_VALID_tIME)
-
- png_set_bKGD(png_ptr, info_ptr, background);
-
- background - background color (of type
- png_color_16p) (PNG_VALID_bKGD)
-
- png_set_text(png_ptr, info_ptr, text_ptr, num_text);
-
- text_ptr - array of png_text holding image
- comments
-
- text_ptr[i].compression - type of compression used
- on "text" PNG_TEXT_COMPRESSION_NONE
- PNG_TEXT_COMPRESSION_zTXt
- PNG_ITXT_COMPRESSION_NONE
- PNG_ITXT_COMPRESSION_zTXt
- text_ptr[i].key - keyword for comment. Must contain
- 1-79 characters.
- text_ptr[i].text - text comments for current
- keyword. Can be NULL or empty.
- text_ptr[i].text_length - length of text string,
- after decompression, 0 for iTXt
- text_ptr[i].itxt_length - length of itxt string,
- after decompression, 0 for tEXt/zTXt
- text_ptr[i].lang - language of comment (NULL or
- empty for unknown).
- text_ptr[i].translated_keyword - keyword in UTF-8 (NULL
- or empty for unknown).
-
- Note that the itxt_length, lang, and lang_key
- members of the text_ptr structure only exist when the
- library is built with iTXt chunk support. Prior to
- libpng-1.4.0 the library was built by default without
- iTXt support. Also note that when iTXt is supported,
- they contain NULL pointers when the "compression"
- field contains PNG_TEXT_COMPRESSION_NONE or
- PNG_TEXT_COMPRESSION_zTXt.
-
- num_text - number of comments
-
- png_set_sPLT(png_ptr, info_ptr, &palette_ptr,
- num_spalettes);
-
- palette_ptr - array of png_sPLT_struct structures
- to be added to the list of palettes
- in the info structure.
- num_spalettes - number of palette structures to be
- added.
-
- png_set_oFFs(png_ptr, info_ptr, offset_x, offset_y,
- unit_type);
-
- offset_x - positive offset from the left
- edge of the screen
-
- offset_y - positive offset from the top
- edge of the screen
-
- unit_type - PNG_OFFSET_PIXEL, PNG_OFFSET_MICROMETER
-
- png_set_pHYs(png_ptr, info_ptr, res_x, res_y,
- unit_type);
-
- res_x - pixels/unit physical resolution
- in x direction
-
- res_y - pixels/unit physical resolution
- in y direction
-
- unit_type - PNG_RESOLUTION_UNKNOWN,
- PNG_RESOLUTION_METER
-
- png_set_sCAL(png_ptr, info_ptr, unit, width, height)
-
- unit - physical scale units (an integer)
-
- width - width of a pixel in physical scale units
-
- height - height of a pixel in physical scale units
- (width and height are doubles)
-
- png_set_sCAL_s(png_ptr, info_ptr, unit, width, height)
-
- unit - physical scale units (an integer)
-
- width - width of a pixel in physical scale units
- expressed as a string
-
- height - height of a pixel in physical scale units
- (width and height are strings like "2.54")
-
- png_set_unknown_chunks(png_ptr, info_ptr, &unknowns,
- num_unknowns)
-
- unknowns - array of png_unknown_chunk
- structures holding unknown chunks
- unknowns[i].name - name of unknown chunk
- unknowns[i].data - data of unknown chunk
- unknowns[i].size - size of unknown chunk's data
- unknowns[i].location - position to write chunk in file
- 0: do not write chunk
- PNG_HAVE_IHDR: before PLTE
- PNG_HAVE_PLTE: before IDAT
- PNG_AFTER_IDAT: after IDAT
-
-The "location" member is set automatically according to
-what part of the output file has already been written.
-You can change its value after calling png_set_unknown_chunks()
-as demonstrated in pngtest.c. Within each of the "locations",
-the chunks are sequenced according to their position in the
-structure (that is, the value of "i", which is the order in which
-the chunk was either read from the input file or defined with
-png_set_unknown_chunks).
-
-A quick word about text and num_text. text is an array of png_text
-structures. num_text is the number of valid structures in the array.
-Each png_text structure holds a language code, a keyword, a text value,
-and a compression type.
-
-The compression types have the same valid numbers as the compression
-types of the image data. Currently, the only valid number is zero.
-However, you can store text either compressed or uncompressed, unlike
-images, which always have to be compressed. So if you don't want the
-text compressed, set the compression type to PNG_TEXT_COMPRESSION_NONE.
-Because tEXt and zTXt chunks don't have a language field, if you
-specify PNG_TEXT_COMPRESSION_NONE or PNG_TEXT_COMPRESSION_zTXt
-any language code or translated keyword will not be written out.
-
-Until text gets around a few hundred bytes, it is not worth compressing it.
-After the text has been written out to the file, the compression type
-is set to PNG_TEXT_COMPRESSION_NONE_WR or PNG_TEXT_COMPRESSION_zTXt_WR,
-so that it isn't written out again at the end (in case you are calling
-png_write_end() with the same struct).
-
-The keywords that are given in the PNG Specification are:
-
- Title Short (one line) title or
- caption for image
-
- Author Name of image's creator
-
- Description Description of image (possibly long)
-
- Copyright Copyright notice
-
- Creation Time Time of original image creation
- (usually RFC 1123 format, see below)
-
- Software Software used to create the image
-
- Disclaimer Legal disclaimer
-
- Warning Warning of nature of content
-
- Source Device used to create the image
-
- Comment Miscellaneous comment; conversion
- from other image format
-
-The keyword-text pairs work like this. Keywords should be short
-simple descriptions of what the comment is about. Some typical
-keywords are found in the PNG specification, as is some recommendations
-on keywords. You can repeat keywords in a file. You can even write
-some text before the image and some after. For example, you may want
-to put a description of the image before the image, but leave the
-disclaimer until after, so viewers working over modem connections
-don't have to wait for the disclaimer to go over the modem before
-they start seeing the image. Finally, keywords should be full
-words, not abbreviations. Keywords and text are in the ISO 8859-1
-(Latin-1) character set (a superset of regular ASCII) and can not
-contain NUL characters, and should not contain control or other
-unprintable characters. To make the comments widely readable, stick
-with basic ASCII, and avoid machine specific character set extensions
-like the IBM-PC character set. The keyword must be present, but
-you can leave off the text string on non-compressed pairs.
-Compressed pairs must have a text string, as only the text string
-is compressed anyway, so the compression would be meaningless.
-
-PNG supports modification time via the png_time structure. Two
-conversion routines are provided, png_convert_from_time_t() for
-time_t and png_convert_from_struct_tm() for struct tm. The
-time_t routine uses gmtime(). You don't have to use either of
-these, but if you wish to fill in the png_time structure directly,
-you should provide the time in universal time (GMT) if possible
-instead of your local time. Note that the year number is the full
-year (e.g. 1998, rather than 98 - PNG is year 2000 compliant!), and
-that months start with 1.
-
-If you want to store the time of the original image creation, you should
-use a plain tEXt chunk with the "Creation Time" keyword. This is
-necessary because the "creation time" of a PNG image is somewhat vague,
-depending on whether you mean the PNG file, the time the image was
-created in a non-PNG format, a still photo from which the image was
-scanned, or possibly the subject matter itself. In order to facilitate
-machine-readable dates, it is recommended that the "Creation Time"
-tEXt chunk use RFC 1123 format dates (e.g. "22 May 1997 18:07:10 GMT"),
-although this isn't a requirement. Unlike the tIME chunk, the
-"Creation Time" tEXt chunk is not expected to be automatically changed
-by the software. To facilitate the use of RFC 1123 dates, a function
-png_convert_to_rfc1123_buffer(buffer, png_timep) is provided to
-convert from PNG time to an RFC 1123 format string. The caller must provide
-a writeable buffer of at least 29 bytes.
-
-Writing unknown chunks
-
-You can use the png_set_unknown_chunks function to queue up private chunks
-for writing. You give it a chunk name, location, raw data, and a size. You
-also must use png_set_keep_unknown_chunks() to ensure that libpng will
-handle them. That's all there is to it. The chunks will be written by the
-next following png_write_info_before_PLTE, png_write_info, or png_write_end
-function, depending upon the specified location. Any chunks previously
-read into the info structure's unknown-chunk list will also be written out
-in a sequence that satisfies the PNG specification's ordering rules.
-
-Here is an example of writing two private chunks, prVt and miNE:
-
- #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
- /* Set unknown chunk data */
- png_unknown_chunk unk_chunk[2];
- strcpy((char *) unk_chunk[0].name, "prVt";
- unk_chunk[0].data = (unsigned char *) "PRIVATE DATA";
- unk_chunk[0].size = strlen(unk_chunk[0].data)+1;
- unk_chunk[0].location = PNG_HAVE_IHDR;
- strcpy((char *) unk_chunk[1].name, "miNE";
- unk_chunk[1].data = (unsigned char *) "MY CHUNK DATA";
- unk_chunk[1].size = strlen(unk_chunk[0].data)+1;
- unk_chunk[1].location = PNG_AFTER_IDAT;
- png_set_unknown_chunks(write_ptr, write_info_ptr,
- unk_chunk, 2);
- /* Needed because miNE is not safe-to-copy */
- png_set_keep_unknown_chunks(png, PNG_HANDLE_CHUNK_ALWAYS,
- (png_bytep) "miNE", 1);
- # if PNG_LIBPNG_VER < 10600
- /* Deal with unknown chunk location bug in 1.5.x and earlier */
- png_set_unknown_chunk_location(png, info, 0, PNG_HAVE_IHDR);
- png_set_unknown_chunk_location(png, info, 1, PNG_AFTER_IDAT);
- # endif
- # if PNG_LIBPNG_VER < 10500
- /* PNG_AFTER_IDAT writes two copies of the chunk prior to libpng-1.5.0,
- * one before IDAT and another after IDAT, so don't use it; only use
- * PNG_HAVE_IHDR location. This call resets the location previously
- * set by assignment and png_set_unknown_chunk_location() for chunk 1.
- */
- png_set_unknown_chunk_location(png, info, 1, PNG_HAVE_IHDR);
- # endif
- #endif
-
-The high-level write interface
-
-At this point there are two ways to proceed; through the high-level
-write interface, or through a sequence of low-level write operations.
-You can use the high-level interface if your image data is present
-in the info structure. All defined output
-transformations are permitted, enabled by the following masks.
-
- PNG_TRANSFORM_IDENTITY No transformation
- PNG_TRANSFORM_PACKING Pack 1, 2 and 4-bit samples
- PNG_TRANSFORM_PACKSWAP Change order of packed
- pixels to LSB first
- PNG_TRANSFORM_INVERT_MONO Invert monochrome images
- PNG_TRANSFORM_SHIFT Normalize pixels to the
- sBIT depth
- PNG_TRANSFORM_BGR Flip RGB to BGR, RGBA
- to BGRA
- PNG_TRANSFORM_SWAP_ALPHA Flip RGBA to ARGB or GA
- to AG
- PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity
- to transparency
- PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples
- PNG_TRANSFORM_STRIP_FILLER Strip out filler
- bytes (deprecated).
- PNG_TRANSFORM_STRIP_FILLER_BEFORE Strip out leading
- filler bytes
- PNG_TRANSFORM_STRIP_FILLER_AFTER Strip out trailing
- filler bytes
-
-If you have valid image data in the info structure (you can use
-png_set_rows() to put image data in the info structure), simply do this:
-
- png_write_png(png_ptr, info_ptr, png_transforms, NULL)
-
-where png_transforms is an integer containing the bitwise OR of some set of
-transformation flags. This call is equivalent to png_write_info(),
-followed the set of transformations indicated by the transform mask,
-then png_write_image(), and finally png_write_end().
-
-(The final parameter of this call is not yet used. Someday it might point
-to transformation parameters required by some future output transform.)
-
-You must use png_transforms and not call any png_set_transform() functions
-when you use png_write_png().
-
-The low-level write interface
-
-If you are going the low-level route instead, you are now ready to
-write all the file information up to the actual image data. You do
-this with a call to png_write_info().
-
- png_write_info(png_ptr, info_ptr);
-
-Note that there is one transformation you may need to do before
-png_write_info(). In PNG files, the alpha channel in an image is the
-level of opacity. If your data is supplied as a level of transparency,
-you can invert the alpha channel before you write it, so that 0 is
-fully transparent and 255 (in 8-bit or paletted images) or 65535
-(in 16-bit images) is fully opaque, with
-
- png_set_invert_alpha(png_ptr);
-
-This must appear before png_write_info() instead of later with the
-other transformations because in the case of paletted images the tRNS
-chunk data has to be inverted before the tRNS chunk is written. If
-your image is not a paletted image, the tRNS data (which in such cases
-represents a single color to be rendered as transparent) won't need to
-be changed, and you can safely do this transformation after your
-png_write_info() call.
-
-If you need to write a private chunk that you want to appear before
-the PLTE chunk when PLTE is present, you can write the PNG info in
-two steps, and insert code to write your own chunk between them:
-
- png_write_info_before_PLTE(png_ptr, info_ptr);
- png_set_unknown_chunks(png_ptr, info_ptr, ...);
- png_write_info(png_ptr, info_ptr);
-
-After you've written the file information, you can set up the library
-to handle any special transformations of the image data. The various
-ways to transform the data will be described in the order that they
-should occur. This is important, as some of these change the color
-type and/or bit depth of the data, and some others only work on
-certain color types and bit depths. Even though each transformation
-checks to see if it has data that it can do something with, you should
-make sure to only enable a transformation if it will be valid for the
-data. For example, don't swap red and blue on grayscale data.
-
-PNG files store RGB pixels packed into 3 or 6 bytes. This code tells
-the library to strip input data that has 4 or 8 bytes per pixel down
-to 3 or 6 bytes (or strip 2 or 4-byte grayscale+filler data to 1 or 2
-bytes per pixel).
-
- png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE);
-
-where the 0 is unused, and the location is either PNG_FILLER_BEFORE or
-PNG_FILLER_AFTER, depending upon whether the filler byte in the pixel
-is stored XRGB or RGBX.
-
-PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as
-they can, resulting in, for example, 8 pixels per byte for 1 bit files.
-If the data is supplied at 1 pixel per byte, use this code, which will
-correctly pack the pixels into a single byte:
-
- png_set_packing(png_ptr);
-
-PNG files reduce possible bit depths to 1, 2, 4, 8, and 16. If your
-data is of another bit depth, you can write an sBIT chunk into the
-file so that decoders can recover the original data if desired.
-
- /* Set the true bit depth of the image data */
- if (color_type & PNG_COLOR_MASK_COLOR)
- {
- sig_bit.red = true_bit_depth;
- sig_bit.green = true_bit_depth;
- sig_bit.blue = true_bit_depth;
- }
-
- else
- {
- sig_bit.gray = true_bit_depth;
- }
-
- if (color_type & PNG_COLOR_MASK_ALPHA)
- {
- sig_bit.alpha = true_bit_depth;
- }
-
- png_set_sBIT(png_ptr, info_ptr, &sig_bit);
-
-If the data is stored in the row buffer in a bit depth other than
-one supported by PNG (e.g. 3 bit data in the range 0-7 for a 4-bit PNG),
-this will scale the values to appear to be the correct bit depth as
-is required by PNG.
-
- png_set_shift(png_ptr, &sig_bit);
-
-PNG files store 16-bit pixels in network byte order (big-endian,
-ie. most significant bits first). This code would be used if they are
-supplied the other way (little-endian, i.e. least significant bits
-first, the way PCs store them):
-
- if (bit_depth > 8)
- png_set_swap(png_ptr);
-
-If you are using packed-pixel images (1, 2, or 4 bits/pixel), and you
-need to change the order the pixels are packed into bytes, you can use:
-
- if (bit_depth < 8)
- png_set_packswap(png_ptr);
-
-PNG files store 3 color pixels in red, green, blue order. This code
-would be used if they are supplied as blue, green, red:
-
- png_set_bgr(png_ptr);
-
-PNG files describe monochrome as black being zero and white being
-one. This code would be used if the pixels are supplied with this reversed
-(black being one and white being zero):
-
- png_set_invert_mono(png_ptr);
-
-Finally, you can write your own transformation function if none of
-the existing ones meets your needs. This is done by setting a callback
-with
-
- png_set_write_user_transform_fn(png_ptr,
- write_transform_fn);
-
-You must supply the function
-
- void write_transform_fn(png_structp png_ptr, png_row_infop
- row_info, png_bytep data)
-
-See pngtest.c for a working example. Your function will be called
-before any of the other transformations are processed. If supported
-libpng also supplies an information routine that may be called from
-your callback:
-
- png_get_current_row_number(png_ptr);
- png_get_current_pass_number(png_ptr);
-
-This returns the current row passed to the transform. With interlaced
-images the value returned is the row in the input sub-image image. Use
-PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to
-find the output pixel (x,y) given an interlaced sub-image pixel (row,col,pass).
-
-The discussion of interlace handling above contains more information on how to
-use these values.
-
-You can also set up a pointer to a user structure for use by your
-callback function.
-
- png_set_user_transform_info(png_ptr, user_ptr, 0, 0);
-
-The user_channels and user_depth parameters of this function are ignored
-when writing; you can set them to zero as shown.
-
-You can retrieve the pointer via the function png_get_user_transform_ptr().
-For example:
-
- voidp write_user_transform_ptr =
- png_get_user_transform_ptr(png_ptr);
-
-It is possible to have libpng flush any pending output, either manually,
-or automatically after a certain number of lines have been written. To
-flush the output stream a single time call:
-
- png_write_flush(png_ptr);
-
-and to have libpng flush the output stream periodically after a certain
-number of scanlines have been written, call:
-
- png_set_flush(png_ptr, nrows);
-
-Note that the distance between rows is from the last time png_write_flush()
-was called, or the first row of the image if it has never been called.
-So if you write 50 lines, and then png_set_flush 25, it will flush the
-output on the next scanline, and every 25 lines thereafter, unless
-png_write_flush() is called before 25 more lines have been written.
-If nrows is too small (less than about 10 lines for a 640 pixel wide
-RGB image) the image compression may decrease noticeably (although this
-may be acceptable for real-time applications). Infrequent flushing will
-only degrade the compression performance by a few percent over images
-that do not use flushing.
-
-Writing the image data
-
-That's it for the transformations. Now you can write the image data.
-The simplest way to do this is in one function call. If you have the
-whole image in memory, you can just call png_write_image() and libpng
-will write the image. You will need to pass in an array of pointers to
-each row. This function automatically handles interlacing, so you don't
-need to call png_set_interlace_handling() or call this function multiple
-times, or any of that other stuff necessary with png_write_rows().
-
- png_write_image(png_ptr, row_pointers);
-
-where row_pointers is:
-
- png_byte *row_pointers[height];
-
-You can point to void or char or whatever you use for pixels.
-
-If you don't want to write the whole image at once, you can
-use png_write_rows() instead. If the file is not interlaced,
-this is simple:
-
- png_write_rows(png_ptr, row_pointers,
- number_of_rows);
-
-row_pointers is the same as in the png_write_image() call.
-
-If you are just writing one row at a time, you can do this with
-a single row_pointer instead of an array of row_pointers:
-
- png_bytep row_pointer = row;
-
- png_write_row(png_ptr, row_pointer);
-
-When the file is interlaced, things can get a good deal more complicated.
-The only currently (as of the PNG Specification version 1.2, dated July
-1999) defined interlacing scheme for PNG files is the "Adam7" interlace
-scheme, that breaks down an image into seven smaller images of varying
-size. libpng will build these images for you, or you can do them
-yourself. If you want to build them yourself, see the PNG specification
-for details of which pixels to write when.
-
-If you don't want libpng to handle the interlacing details, just
-use png_set_interlace_handling() and call png_write_rows() the
-correct number of times to write all the sub-images
-(png_set_interlace_handling() returns the number of sub-images.)
-
-If you want libpng to build the sub-images, call this before you start
-writing any rows:
-
- number_of_passes = png_set_interlace_handling(png_ptr);
-
-This will return the number of passes needed. Currently, this is seven,
-but may change if another interlace type is added.
-
-Then write the complete image number_of_passes times.
-
- png_write_rows(png_ptr, row_pointers, number_of_rows);
-
-Think carefully before you write an interlaced image. Typically code that
-reads such images reads all the image data into memory, uncompressed, before
-doing any processing. Only code that can display an image on the fly can
-take advantage of the interlacing and even then the image has to be exactly
-the correct size for the output device, because scaling an image requires
-adjacent pixels and these are not available until all the passes have been
-read.
-
-If you do write an interlaced image you will hardly ever need to handle
-the interlacing yourself. Call png_set_interlace_handling() and use the
-approach described above.
-
-The only time it is conceivable that you will really need to write an
-interlaced image pass-by-pass is when you have read one pass by pass and
-made some pixel-by-pixel transformation to it, as described in the read
-code above. In this case use the PNG_PASS_ROWS and PNG_PASS_COLS macros
-to determine the size of each sub-image in turn and simply write the rows
-you obtained from the read code.
-
-Finishing a sequential write
-
-After you are finished writing the image, you should finish writing
-the file. If you are interested in writing comments or time, you should
-pass an appropriately filled png_info pointer. If you are not interested,
-you can pass NULL.
-
- png_write_end(png_ptr, info_ptr);
-
-When you are done, you can free all memory used by libpng like this:
-
- png_destroy_write_struct(&png_ptr, &info_ptr);
-
-It is also possible to individually free the info_ptr members that
-point to libpng-allocated storage with the following function:
-
- png_free_data(png_ptr, info_ptr, mask, seq)
-
- mask - identifies data to be freed, a mask
- containing the bitwise OR of one or
- more of
- PNG_FREE_PLTE, PNG_FREE_TRNS,
- PNG_FREE_HIST, PNG_FREE_ICCP,
- PNG_FREE_PCAL, PNG_FREE_ROWS,
- PNG_FREE_SCAL, PNG_FREE_SPLT,
- PNG_FREE_TEXT, PNG_FREE_UNKN,
- or simply PNG_FREE_ALL
-
- seq - sequence number of item to be freed
- (-1 for all items)
-
-This function may be safely called when the relevant storage has
-already been freed, or has not yet been allocated, or was allocated
-by the user and not by libpng, and will in those cases do nothing.
-The "seq" parameter is ignored if only one item of the selected data
-type, such as PLTE, is allowed. If "seq" is not -1, and multiple items
-are allowed for the data type identified in the mask, such as text or
-sPLT, only the n'th item in the structure is freed, where n is "seq".
-
-If you allocated data such as a palette that you passed in to libpng
-with png_set_*, you must not free it until just before the call to
-png_destroy_write_struct().
-
-The default behavior is only to free data that was allocated internally
-by libpng. This can be changed, so that libpng will not free the data,
-or so that it will free data that was allocated by the user with png_malloc()
-or png_calloc() and passed in via a png_set_*() function, with
-
- png_data_freer(png_ptr, info_ptr, freer, mask)
-
- freer - one of
- PNG_DESTROY_WILL_FREE_DATA
- PNG_SET_WILL_FREE_DATA
- PNG_USER_WILL_FREE_DATA
-
- mask - which data elements are affected
- same choices as in png_free_data()
-
-For example, to transfer responsibility for some data from a read structure
-to a write structure, you could use
-
- png_data_freer(read_ptr, read_info_ptr,
- PNG_USER_WILL_FREE_DATA,
- PNG_FREE_PLTE|PNG_FREE_tRNS|PNG_FREE_hIST)
-
- png_data_freer(write_ptr, write_info_ptr,
- PNG_DESTROY_WILL_FREE_DATA,
- PNG_FREE_PLTE|PNG_FREE_tRNS|PNG_FREE_hIST)
-
-thereby briefly reassigning responsibility for freeing to the user but
-immediately afterwards reassigning it once more to the write_destroy
-function. Having done this, it would then be safe to destroy the read
-structure and continue to use the PLTE, tRNS, and hIST data in the write
-structure.
-
-This function only affects data that has already been allocated.
-You can call this function before calling after the png_set_*() functions
-to control whether the user or png_destroy_*() is supposed to free the data.
-When the user assumes responsibility for libpng-allocated data, the
-application must use
-png_free() to free it, and when the user transfers responsibility to libpng
-for data that the user has allocated, the user must have used png_malloc()
-or png_calloc() to allocate it.
-
-If you allocated text_ptr.text, text_ptr.lang, and text_ptr.translated_keyword
-separately, do not transfer responsibility for freeing text_ptr to libpng,
-because when libpng fills a png_text structure it combines these members with
-the key member, and png_free_data() will free only text_ptr.key. Similarly,
-if you transfer responsibility for free'ing text_ptr from libpng to your
-application, your application must not separately free those members.
-For a more compact example of writing a PNG image, see the file example.c.
-
-V. Simplified API
-
-The simplified API, which became available in libpng-1.6.0, hides the details
-of both libpng and the PNG file format itself.
-It allows PNG files to be read into a very limited number of
-in-memory bitmap formats or to be written from the same formats. If these
-formats do not accommodate your needs then you can, and should, use the more
-sophisticated APIs above - these support a wide variety of in-memory formats
-and a wide variety of sophisticated transformations to those formats as well
-as a wide variety of APIs to manipulate ancillary information.
-
-To read a PNG file using the simplified API:
-
- 1) Declare a 'png_image' structure (see below) on the stack, set the
- version field to PNG_IMAGE_VERSION and the 'opaque' pointer to NULL
- (this is REQUIRED, your program may crash if you don't do it.)
-
- 2) Call the appropriate png_image_begin_read... function.
-
- 3) Set the png_image 'format' member to the required sample format.
-
- 4) Allocate a buffer for the image and, if required, the color-map.
-
- 5) Call png_image_finish_read to read the image and, if required, the
- color-map into your buffers.
-
-There are no restrictions on the format of the PNG input itself; all valid
-color types, bit depths, and interlace methods are acceptable, and the
-input image is transformed as necessary to the requested in-memory format
-during the png_image_finish_read() step. The only caveat is that if you
-request a color-mapped image from a PNG that is full-color or makes
-complex use of an alpha channel the transformation is extremely lossy and the
-result may look terrible.
-
-To write a PNG file using the simplified API:
-
- 1) Declare a 'png_image' structure on the stack and memset()
- it to all zero.
-
- 2) Initialize the members of the structure that describe the
- image, setting the 'format' member to the format of the
- image samples.
-
- 3) Call the appropriate png_image_write... function with a
- pointer to the image and, if necessary, the color-map to write
- the PNG data.
-
-png_image is a structure that describes the in-memory format of an image
-when it is being read or defines the in-memory format of an image that you
-need to write. The "png_image" structure contains the following members:
-
- png_controlp opaque Initialize to NULL, free with png_image_free
- png_uint_32 version Set to PNG_IMAGE_VERSION
- png_uint_32 width Image width in pixels (columns)
- png_uint_32 height Image height in pixels (rows)
- png_uint_32 format Image format as defined below
- png_uint_32 flags A bit mask containing informational flags
- png_uint_32 colormap_entries; Number of entries in the color-map
- png_uint_32 warning_or_error;
- char message[64];
-
-In the event of an error or warning the "warning_or_error"
-field will be set to a non-zero value and the 'message' field will contain
-a '\0' terminated string with the libpng error or warning message. If both
-warnings and an error were encountered, only the error is recorded. If there
-are multiple warnings, only the first one is recorded.
-
-The upper 30 bits of the "warning_or_error" value are reserved; the low two
-bits contain a two bit code such that a value more than 1 indicates a failure
-in the API just called:
-
- 0 - no warning or error
- 1 - warning
- 2 - error
- 3 - error preceded by warning
-
-The pixels (samples) of the image have one to four channels whose components
-have original values in the range 0 to 1.0:
-
- 1: A single gray or luminance channel (G).
- 2: A gray/luminance channel and an alpha channel (GA).
- 3: Three red, green, blue color channels (RGB).
- 4: Three color channels and an alpha channel (RGBA).
-
-The channels are encoded in one of two ways:
-
- a) As a small integer, value 0..255, contained in a single byte. For the
-alpha channel the original value is simply value/255. For the color or
-luminance channels the value is encoded according to the sRGB specification
-and matches the 8-bit format expected by typical display devices.
-
-The color/gray channels are not scaled (pre-multiplied) by the alpha
-channel and are suitable for passing to color management software.
-
- b) As a value in the range 0..65535, contained in a 2-byte integer, in
-the native byte order of the platform on which the application is running.
-All channels can be converted to the original value by dividing by 65535; all
-channels are linear. Color channels use the RGB encoding (RGB end-points) of
-the sRGB specification. This encoding is identified by the
-PNG_FORMAT_FLAG_LINEAR flag below.
-
-When the simplified API needs to convert between sRGB and linear colorspaces,
-the actual sRGB transfer curve defined in the sRGB specification (see the
-article at https://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2
-approximation used elsewhere in libpng.
-
-When an alpha channel is present it is expected to denote pixel coverage
-of the color or luminance channels and is returned as an associated alpha
-channel: the color/gray channels are scaled (pre-multiplied) by the alpha
-value.
-
-The samples are either contained directly in the image data, between 1 and 8
-bytes per pixel according to the encoding, or are held in a color-map indexed
-by bytes in the image data. In the case of a color-map the color-map entries
-are individual samples, encoded as above, and the image data has one byte per
-pixel to select the relevant sample from the color-map.
-
-PNG_FORMAT_*
-
-The #defines to be used in png_image::format. Each #define identifies a
-particular layout of channel data and, if present, alpha values. There are
-separate defines for each of the two component encodings.
-
-A format is built up using single bit flag values. All combinations are
-valid. Formats can be built up from the flag values or you can use one of
-the predefined values below. When testing formats always use the FORMAT_FLAG
-macros to test for individual features - future versions of the library may
-add new flags.
-
-When reading or writing color-mapped images the format should be set to the
-format of the entries in the color-map then png_image_{read,write}_colormap
-called to read or write the color-map and set the format correctly for the
-image data. Do not set the PNG_FORMAT_FLAG_COLORMAP bit directly!
-
-NOTE: libpng can be built with particular features disabled. If you see
-compiler errors because the definition of one of the following flags has been
-compiled out it is because libpng does not have the required support. It is
-possible, however, for the libpng configuration to enable the format on just
-read or just write; in that case you may see an error at run time.
-You can guard against this by checking for the definition of the
-appropriate "_SUPPORTED" macro, one of:
-
- PNG_SIMPLIFIED_{READ,WRITE}_{BGR,AFIRST}_SUPPORTED
-
- PNG_FORMAT_FLAG_ALPHA format with an alpha channel
- PNG_FORMAT_FLAG_COLOR color format: otherwise grayscale
- PNG_FORMAT_FLAG_LINEAR 2-byte channels else 1-byte
- PNG_FORMAT_FLAG_COLORMAP image data is color-mapped
- PNG_FORMAT_FLAG_BGR BGR colors, else order is RGB
- PNG_FORMAT_FLAG_AFIRST alpha channel comes first
-
-Supported formats are as follows. Future versions of libpng may support more
-formats; for compatibility with older versions simply check if the format
-macro is defined using #ifdef. These defines describe the in-memory layout
-of the components of the pixels of the image.
-
-First the single byte (sRGB) formats:
-
- PNG_FORMAT_GRAY
- PNG_FORMAT_GA
- PNG_FORMAT_AG
- PNG_FORMAT_RGB
- PNG_FORMAT_BGR
- PNG_FORMAT_RGBA
- PNG_FORMAT_ARGB
- PNG_FORMAT_BGRA
- PNG_FORMAT_ABGR
-
-Then the linear 2-byte formats. When naming these "Y" is used to
-indicate a luminance (gray) channel. The component order within the pixel
-is always the same - there is no provision for swapping the order of the
-components in the linear format. The components are 16-bit integers in
-the native byte order for your platform, and there is no provision for
-swapping the bytes to a different endian condition.
-
- PNG_FORMAT_LINEAR_Y
- PNG_FORMAT_LINEAR_Y_ALPHA
- PNG_FORMAT_LINEAR_RGB
- PNG_FORMAT_LINEAR_RGB_ALPHA
-
-With color-mapped formats the image data is one byte for each pixel. The byte
-is an index into the color-map which is formatted as above. To obtain a
-color-mapped format it is sufficient just to add the PNG_FOMAT_FLAG_COLORMAP
-to one of the above definitions, or you can use one of the definitions below.
-
- PNG_FORMAT_RGB_COLORMAP
- PNG_FORMAT_BGR_COLORMAP
- PNG_FORMAT_RGBA_COLORMAP
- PNG_FORMAT_ARGB_COLORMAP
- PNG_FORMAT_BGRA_COLORMAP
- PNG_FORMAT_ABGR_COLORMAP
-
-PNG_IMAGE macros
-
-These are convenience macros to derive information from a png_image
-structure. The PNG_IMAGE_SAMPLE_ macros return values appropriate to the
-actual image sample values - either the entries in the color-map or the
-pixels in the image. The PNG_IMAGE_PIXEL_ macros return corresponding values
-for the pixels and will always return 1 for color-mapped formats. The
-remaining macros return information about the rows in the image and the
-complete image.
-
-NOTE: All the macros that take a png_image::format parameter are compile time
-constants if the format parameter is, itself, a constant. Therefore these
-macros can be used in array declarations and case labels where required.
-Similarly the macros are also pre-processor constants (sizeof is not used) so
-they can be used in #if tests.
-
- PNG_IMAGE_SAMPLE_CHANNELS(fmt)
- Returns the total number of channels in a given format: 1..4
-
- PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt)
- Returns the size in bytes of a single component of a pixel or color-map
- entry (as appropriate) in the image: 1 or 2.
-
- PNG_IMAGE_SAMPLE_SIZE(fmt)
- This is the size of the sample data for one sample. If the image is
- color-mapped it is the size of one color-map entry (and image pixels are
- one byte in size), otherwise it is the size of one image pixel.
-
- PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(fmt)
- The maximum size of the color-map required by the format expressed in a
- count of components. This can be used to compile-time allocate a
- color-map:
-
- png_uint_16 colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(linear_fmt)];
-
- png_byte colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(sRGB_fmt)];
-
- Alternatively use the PNG_IMAGE_COLORMAP_SIZE macro below to use the
- information from one of the png_image_begin_read_ APIs and dynamically
- allocate the required memory.
-
- PNG_IMAGE_COLORMAP_SIZE(fmt)
- The size of the color-map required by the format; this is the size of the
- color-map buffer passed to the png_image_{read,write}_colormap APIs. It is
- a fixed number determined by the format so can easily be allocated on the
- stack if necessary.
-
-Corresponding information about the pixels
-
- PNG_IMAGE_PIXEL_CHANNELS(fmt)
- The number of separate channels (components) in a pixel; 1 for a
- color-mapped image.
-
- PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt)\
- The size, in bytes, of each component in a pixel; 1 for a color-mapped
- image.
-
- PNG_IMAGE_PIXEL_SIZE(fmt)
- The size, in bytes, of a complete pixel; 1 for a color-mapped image.
-
-Information about the whole row, or whole image
-
- PNG_IMAGE_ROW_STRIDE(image)
- Returns the total number of components in a single row of the image; this
- is the minimum 'row stride', the minimum count of components between each
- row. For a color-mapped image this is the minimum number of bytes in a
- row.
-
- If you need the stride measured in bytes, row_stride_bytes is
- PNG_IMAGE_ROW_STRIDE(image) * PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt)
- plus any padding bytes that your application might need, for example
- to start the next row on a 4-byte boundary.
-
- PNG_IMAGE_BUFFER_SIZE(image, row_stride)
- Return the size, in bytes, of an image buffer given a png_image and a row
- stride - the number of components to leave space for in each row.
-
- PNG_IMAGE_SIZE(image)
- Return the size, in bytes, of the image in memory given just a png_image;
- the row stride is the minimum stride required for the image.
-
- PNG_IMAGE_COLORMAP_SIZE(image)
- Return the size, in bytes, of the color-map of this image. If the image
- format is not a color-map format this will return a size sufficient for
- 256 entries in the given format; check PNG_FORMAT_FLAG_COLORMAP if
- you don't want to allocate a color-map in this case.
-
-PNG_IMAGE_FLAG_*
-
-Flags containing additional information about the image are held in
-the 'flags' field of png_image.
-
- PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB == 0x01
- This indicates that the RGB values of the in-memory bitmap do not
- correspond to the red, green and blue end-points defined by sRGB.
-
- PNG_IMAGE_FLAG_FAST == 0x02
- On write emphasise speed over compression; the resultant PNG file will be
- larger but will be produced significantly faster, particular for large
- images. Do not use this option for images which will be distributed, only
- used it when producing intermediate files that will be read back in
- repeatedly. For a typical 24-bit image the option will double the read
- speed at the cost of increasing the image size by 25%, however for many
- more compressible images the PNG file can be 10 times larger with only a
- slight speed gain.
-
- PNG_IMAGE_FLAG_16BIT_sRGB == 0x04
- On read if the image is a 16-bit per component image and there is no gAMA
- or sRGB chunk assume that the components are sRGB encoded. Notice that
- images output by the simplified API always have gamma information; setting
- this flag only affects the interpretation of 16-bit images from an
- external source. It is recommended that the application expose this flag
- to the user; the user can normally easily recognize the difference between
- linear and sRGB encoding. This flag has no effect on write - the data
- passed to the write APIs must have the correct encoding (as defined
- above.)
-
- If the flag is not set (the default) input 16-bit per component data is
- assumed to be linear.
-
- NOTE: the flag can only be set after the png_image_begin_read_ call,
- because that call initializes the 'flags' field.
-
-READ APIs
-
- The png_image passed to the read APIs must have been initialized by setting
- the png_controlp field 'opaque' to NULL (or, better, memset the whole thing.)
-
- int png_image_begin_read_from_file( png_imagep image,
- const char *file_name)
-
- The named file is opened for read and the image header
- is filled in from the PNG header in the file.
-
- int png_image_begin_read_from_stdio (png_imagep image,
- FILE* file)
-
- The PNG header is read from the stdio FILE object.
-
- int png_image_begin_read_from_memory(png_imagep image,
- png_const_voidp memory, size_t size)
-
- The PNG header is read from the given memory buffer.
-
- int png_image_finish_read(png_imagep image,
- png_colorp background, void *buffer,
- png_int_32 row_stride, void *colormap));
-
- Finish reading the image into the supplied buffer and
- clean up the png_image structure.
-
- row_stride is the step, in png_byte or png_uint_16 units
- as appropriate, between adjacent rows. A positive stride
- indicates that the top-most row is first in the buffer -
- the normal top-down arrangement. A negative stride
- indicates that the bottom-most row is first in the buffer.
-
- background need only be supplied if an alpha channel must
- be removed from a png_byte format and the removal is to be
- done by compositing on a solid color; otherwise it may be
- NULL and any composition will be done directly onto the
- buffer. The value is an sRGB color to use for the
- background, for grayscale output the green channel is used.
-
- For linear output removing the alpha channel is always done
- by compositing on black.
-
- void png_image_free(png_imagep image)
-
- Free any data allocated by libpng in image->opaque,
- setting the pointer to NULL. May be called at any time
- after the structure is initialized.
-
-When the simplified API needs to convert between sRGB and linear colorspaces,
-the actual sRGB transfer curve defined in the sRGB specification (see the
-article at https://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2
-approximation used elsewhere in libpng.
-
-WRITE APIS
-
-For write you must initialize a png_image structure to describe the image to
-be written:
-
- version: must be set to PNG_IMAGE_VERSION
- opaque: must be initialized to NULL
- width: image width in pixels
- height: image height in rows
- format: the format of the data you wish to write
- flags: set to 0 unless one of the defined flags applies; set
- PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB for color format images
- where the RGB values do not correspond to the colors in sRGB.
- colormap_entries: set to the number of entries in the color-map (0 to 256)
-
- int png_image_write_to_file, (png_imagep image,
- const char *file, int convert_to_8bit, const void *buffer,
- png_int_32 row_stride, const void *colormap));
-
- Write the image to the named file.
-
- int png_image_write_to_memory (png_imagep image, void *memory,
- png_alloc_size_t * PNG_RESTRICT memory_bytes,
- int convert_to_8_bit, const void *buffer, ptrdiff_t row_stride,
- const void *colormap));
-
- Write the image to memory.
-
- int png_image_write_to_stdio(png_imagep image, FILE *file,
- int convert_to_8_bit, const void *buffer,
- png_int_32 row_stride, const void *colormap)
-
- Write the image to the given (FILE*).
-
-With all write APIs if image is in one of the linear formats with
-(png_uint_16) data then setting convert_to_8_bit will cause the output to be
-a (png_byte) PNG gamma encoded according to the sRGB specification, otherwise
-a 16-bit linear encoded PNG file is written.
-
-With all APIs row_stride is handled as in the read APIs - it is the spacing
-from one row to the next in component sized units (float) and if negative
-indicates a bottom-up row layout in the buffer. If you pass zero, libpng will
-calculate the row_stride for you from the width and number of channels.
-
-Note that the write API does not support interlacing, sub-8-bit pixels,
-indexed (paletted) images, or most ancillary chunks.
-
-VI. Modifying/Customizing libpng
-
-There are two issues here. The first is changing how libpng does
-standard things like memory allocation, input/output, and error handling.
-The second deals with more complicated things like adding new chunks,
-adding new transformations, and generally changing how libpng works.
-Both of those are compile-time issues; that is, they are generally
-determined at the time the code is written, and there is rarely a need
-to provide the user with a means of changing them.
-
-Memory allocation, input/output, and error handling
-
-All of the memory allocation, input/output, and error handling in libpng
-goes through callbacks that are user-settable. The default routines are
-in pngmem.c, pngrio.c, pngwio.c, and pngerror.c, respectively. To change
-these functions, call the appropriate png_set_*_fn() function.
-
-Memory allocation is done through the functions png_malloc(), png_calloc(),
-and png_free(). The png_malloc() and png_free() functions currently just
-call the standard C functions and png_calloc() calls png_malloc() and then
-clears the newly allocated memory to zero; note that png_calloc(png_ptr, size)
-is not the same as the calloc(number, size) function provided by stdlib.h.
-There is limited support for certain systems with segmented memory
-architectures and the types of pointers declared by png.h match this; you
-will have to use appropriate pointers in your application. If you prefer
-to use a different method of allocating and freeing data, you can use
-png_create_read_struct_2() or png_create_write_struct_2() to register your
-own functions as described above. These functions also provide a void
-pointer that can be retrieved via
-
- mem_ptr=png_get_mem_ptr(png_ptr);
-
-Your replacement memory functions must have prototypes as follows:
-
- png_voidp malloc_fn(png_structp png_ptr,
- png_alloc_size_t size);
-
- void free_fn(png_structp png_ptr, png_voidp ptr);
-
-Your malloc_fn() must return NULL in case of failure. The png_malloc()
-function will normally call png_error() if it receives a NULL from the
-system memory allocator or from your replacement malloc_fn().
-
-Your free_fn() will never be called with a NULL ptr, since libpng's
-png_free() checks for NULL before calling free_fn().
-
-Input/Output in libpng is done through png_read() and png_write(),
-which currently just call fread() and fwrite(). The FILE * is stored in
-png_struct and is initialized via png_init_io(). If you wish to change
-the method of I/O, the library supplies callbacks that you can set
-through the function png_set_read_fn() and png_set_write_fn() at run
-time, instead of calling the png_init_io() function. These functions
-also provide a void pointer that can be retrieved via the function
-png_get_io_ptr(). For example:
-
- png_set_read_fn(png_structp read_ptr,
- voidp read_io_ptr, png_rw_ptr read_data_fn)
-
- png_set_write_fn(png_structp write_ptr,
- voidp write_io_ptr, png_rw_ptr write_data_fn,
- png_flush_ptr output_flush_fn);
-
- voidp read_io_ptr = png_get_io_ptr(read_ptr);
- voidp write_io_ptr = png_get_io_ptr(write_ptr);
-
-The replacement I/O functions must have prototypes as follows:
-
- void user_read_data(png_structp png_ptr,
- png_bytep data, size_t length);
-
- void user_write_data(png_structp png_ptr,
- png_bytep data, size_t length);
-
- void user_flush_data(png_structp png_ptr);
-
-The user_read_data() function is responsible for detecting and
-handling end-of-data errors.
-
-Supplying NULL for the read, write, or flush functions sets them back
-to using the default C stream functions, which expect the io_ptr to
-point to a standard *FILE structure. It is probably a mistake
-to use NULL for one of write_data_fn and output_flush_fn but not both
-of them, unless you have built libpng with PNG_NO_WRITE_FLUSH defined.
-It is an error to read from a write stream, and vice versa.
-
-Error handling in libpng is done through png_error() and png_warning().
-Errors handled through png_error() are fatal, meaning that png_error()
-should never return to its caller. Currently, this is handled via
-setjmp() and longjmp() (unless you have compiled libpng with
-PNG_NO_SETJMP, in which case it is handled via PNG_ABORT()),
-but you could change this to do things like exit() if you should wish,
-as long as your function does not return.
-
-On non-fatal errors, png_warning() is called
-to print a warning message, and then control returns to the calling code.
-By default png_error() and png_warning() print a message on stderr via
-fprintf() unless the library is compiled with PNG_NO_CONSOLE_IO defined
-(because you don't want the messages) or PNG_NO_STDIO defined (because
-fprintf() isn't available). If you wish to change the behavior of the error
-functions, you will need to set up your own message callbacks. These
-functions are normally supplied at the time that the png_struct is created.
-It is also possible to redirect errors and warnings to your own replacement
-functions after png_create_*_struct() has been called by calling:
-
- png_set_error_fn(png_structp png_ptr,
- png_voidp error_ptr, png_error_ptr error_fn,
- png_error_ptr warning_fn);
-
-If NULL is supplied for either error_fn or warning_fn, then the libpng
-default function will be used, calling fprintf() and/or longjmp() if a
-problem is encountered. The replacement error functions should have
-parameters as follows:
-
- void user_error_fn(png_structp png_ptr,
- png_const_charp error_msg);
-
- void user_warning_fn(png_structp png_ptr,
- png_const_charp warning_msg);
-
-Then, within your user_error_fn or user_warning_fn, you can retrieve
-the error_ptr if you need it, by calling
-
- png_voidp error_ptr = png_get_error_ptr(png_ptr);
-
-The motivation behind using setjmp() and longjmp() is the C++ throw and
-catch exception handling methods. This makes the code much easier to write,
-as there is no need to check every return code of every function call.
-However, there are some uncertainties about the status of local variables
-after a longjmp, so the user may want to be careful about doing anything
-after setjmp returns non-zero besides returning itself. Consult your
-compiler documentation for more details. For an alternative approach, you
-may wish to use the "cexcept" facility (see https://cexcept.sourceforge.io/),
-which is illustrated in pngvalid.c and in contrib/visupng.
-
-Beginning in libpng-1.4.0, the png_set_benign_errors() API became available.
-You can use this to handle certain errors (normally handled as errors)
-as warnings.
-
- png_set_benign_errors (png_ptr, int allowed);
-
- allowed: 0: treat png_benign_error() as an error.
- 1: treat png_benign_error() as a warning.
-
-As of libpng-1.6.0, the default condition is to treat benign errors as
-warnings while reading and as errors while writing.
-
-Custom chunks
-
-If you need to read or write custom chunks, you may need to get deeper
-into the libpng code. The library now has mechanisms for storing
-and writing chunks of unknown type; you can even declare callbacks
-for custom chunks. However, this may not be good enough if the
-library code itself needs to know about interactions between your
-chunk and existing `intrinsic' chunks.
-
-If you need to write a new intrinsic chunk, first read the PNG
-specification. Acquire a first level of understanding of how it works.
-Pay particular attention to the sections that describe chunk names,
-and look at how other chunks were designed, so you can do things
-similarly. Second, check out the sections of libpng that read and
-write chunks. Try to find a chunk that is similar to yours and use
-it as a template. More details can be found in the comments inside
-the code. It is best to handle private or unknown chunks in a generic method,
-via callback functions, instead of by modifying libpng functions. This
-is illustrated in pngtest.c, which uses a callback function to handle a
-private "vpAg" chunk and the new "sTER" chunk, which are both unknown to
-libpng.
-
-If you wish to write your own transformation for the data, look through
-the part of the code that does the transformations, and check out some of
-the simpler ones to get an idea of how they work. Try to find a similar
-transformation to the one you want to add and copy off of it. More details
-can be found in the comments inside the code itself.
-
-Configuring for gui/windowing platforms:
-
-You will need to write new error and warning functions that use the GUI
-interface, as described previously, and set them to be the error and
-warning functions at the time that png_create_*_struct() is called,
-in order to have them available during the structure initialization.
-They can be changed later via png_set_error_fn(). On some compilers,
-you may also have to change the memory allocators (png_malloc, etc.).
-
-Configuring zlib:
-
-There are special functions to configure the compression. Perhaps the
-most useful one changes the compression level, which currently uses
-input compression values in the range 0 - 9. The library normally
-uses the default compression level (Z_DEFAULT_COMPRESSION = 6). Tests
-have shown that for a large majority of images, compression values in
-the range 3-6 compress nearly as well as higher levels, and do so much
-faster. For online applications it may be desirable to have maximum speed
-(Z_BEST_SPEED = 1). With versions of zlib after v0.99, you can also
-specify no compression (Z_NO_COMPRESSION = 0), but this would create
-files larger than just storing the raw bitmap. You can specify the
-compression level by calling:
-
- #include zlib.h
- png_set_compression_level(png_ptr, level);
-
-Another useful one is to reduce the memory level used by the library.
-The memory level defaults to 8, but it can be lowered if you are
-short on memory (running DOS, for example, where you only have 640K).
-Note that the memory level does have an effect on compression; among
-other things, lower levels will result in sections of incompressible
-data being emitted in smaller stored blocks, with a correspondingly
-larger relative overhead of up to 15% in the worst case.
-
- #include zlib.h
- png_set_compression_mem_level(png_ptr, level);
-
-The other functions are for configuring zlib. They are not recommended
-for normal use and may result in writing an invalid PNG file. See
-zlib.h for more information on what these mean.
-
- #include zlib.h
- png_set_compression_strategy(png_ptr,
- strategy);
-
- png_set_compression_window_bits(png_ptr,
- window_bits);
-
- png_set_compression_method(png_ptr, method);
-
-This controls the size of the IDAT chunks (default 8192):
-
- png_set_compression_buffer_size(png_ptr, size);
-
-As of libpng version 1.5.4, additional APIs became
-available to set these separately for non-IDAT
-compressed chunks such as zTXt, iTXt, and iCCP:
-
- #include zlib.h
- #if PNG_LIBPNG_VER >= 10504
- png_set_text_compression_level(png_ptr, level);
-
- png_set_text_compression_mem_level(png_ptr, level);
-
- png_set_text_compression_strategy(png_ptr,
- strategy);
-
- png_set_text_compression_window_bits(png_ptr,
- window_bits);
-
- png_set_text_compression_method(png_ptr, method);
- #endif
-
-Controlling row filtering
-
-If you want to control whether libpng uses filtering or not, which
-filters are used, and how it goes about picking row filters, you
-can call one of these functions. The selection and configuration
-of row filters can have a significant impact on the size and
-encoding speed and a somewhat lesser impact on the decoding speed
-of an image. Filtering is enabled by default for RGB and grayscale
-images (with and without alpha), but not for paletted images nor
-for any images with bit depths less than 8 bits/pixel.
-
-The 'method' parameter sets the main filtering method, which is
-currently only '0' in the PNG 1.2 specification. The 'filters'
-parameter sets which filter(s), if any, should be used for each
-scanline. Possible values are PNG_ALL_FILTERS, PNG_NO_FILTERS,
-or PNG_FAST_FILTERS to turn filtering on and off, or to turn on
-just the fast-decoding subset of filters, respectively.
-
-Individual filter types are PNG_FILTER_NONE, PNG_FILTER_SUB,
-PNG_FILTER_UP, PNG_FILTER_AVG, PNG_FILTER_PAETH, which can be bitwise
-ORed together with '|' to specify one or more filters to use.
-These filters are described in more detail in the PNG specification.
-If you intend to change the filter type during the course of writing
-the image, you should start with flags set for all of the filters
-you intend to use so that libpng can initialize its internal
-structures appropriately for all of the filter types. (Note that this
-means the first row must always be adaptively filtered, because libpng
-currently does not allocate the filter buffers until png_write_row()
-is called for the first time.)
-
- filters = PNG_NO_FILTERS;
- filters = PNG_ALL_FILTERS;
- filters = PNG_FAST_FILTERS;
-
- or
-
- filters = PNG_FILTER_NONE | PNG_FILTER_SUB |
- PNG_FILTER_UP | PNG_FILTER_AVG |
- PNG_FILTER_PAETH;
-
- png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE,
- filters);
-
- The second parameter can also be
- PNG_INTRAPIXEL_DIFFERENCING if you are
- writing a PNG to be embedded in a MNG
- datastream. This parameter must be the
- same as the value of filter_method used
- in png_set_IHDR().
-
-Requesting debug printout
-
-The macro definition PNG_DEBUG can be used to request debugging
-printout. Set it to an integer value in the range 0 to 3. Higher
-numbers result in increasing amounts of debugging information. The
-information is printed to the "stderr" file, unless another file
-name is specified in the PNG_DEBUG_FILE macro definition.
-
-When PNG_DEBUG > 0, the following functions (macros) become available:
-
- png_debug(level, message)
- png_debug1(level, message, p1)
- png_debug2(level, message, p1, p2)
-
-in which "level" is compared to PNG_DEBUG to decide whether to print
-the message, "message" is the formatted string to be printed,
-and p1 and p2 are parameters that are to be embedded in the string
-according to printf-style formatting directives. For example,
-
- png_debug1(2, "foo=%d", foo);
-
-is expanded to
-
- if (PNG_DEBUG > 2)
- fprintf(PNG_DEBUG_FILE, "foo=%d\n", foo);
-
-When PNG_DEBUG is defined but is zero, the macros aren't defined, but you
-can still use PNG_DEBUG to control your own debugging:
-
- #ifdef PNG_DEBUG
- fprintf(stderr, ...
- #endif
-
-When PNG_DEBUG = 1, the macros are defined, but only png_debug statements
-having level = 0 will be printed. There aren't any such statements in
-this version of libpng, but if you insert some they will be printed.
-
-VII. MNG support
-
-The MNG specification (available at http://www.libpng.org/pub/mng) allows
-certain extensions to PNG for PNG images that are embedded in MNG datastreams.
-Libpng can support some of these extensions. To enable them, use the
-png_permit_mng_features() function:
-
- feature_set = png_permit_mng_features(png_ptr, mask)
-
- mask is a png_uint_32 containing the bitwise OR of the
- features you want to enable. These include
- PNG_FLAG_MNG_EMPTY_PLTE
- PNG_FLAG_MNG_FILTER_64
- PNG_ALL_MNG_FEATURES
-
- feature_set is a png_uint_32 that is the bitwise AND of
- your mask with the set of MNG features that is
- supported by the version of libpng that you are using.
-
-It is an error to use this function when reading or writing a standalone
-PNG file with the PNG 8-byte signature. The PNG datastream must be wrapped
-in a MNG datastream. As a minimum, it must have the MNG 8-byte signature
-and the MHDR and MEND chunks. Libpng does not provide support for these
-or any other MNG chunks; your application must provide its own support for
-them. You may wish to consider using libmng (available at
-https://www.libmng.com/) instead.
-
-VIII. Changes to Libpng from version 0.88
-
-It should be noted that versions of libpng later than 0.96 are not
-distributed by the original libpng author, Guy Schalnat, nor by
-Andreas Dilger, who had taken over from Guy during 1996 and 1997, and
-distributed versions 0.89 through 0.96, but rather by another member
-of the original PNG Group, Glenn Randers-Pehrson. Guy and Andreas are
-still alive and well, but they have moved on to other things.
-
-The old libpng functions png_read_init(), png_write_init(),
-png_info_init(), png_read_destroy(), and png_write_destroy() have been
-moved to PNG_INTERNAL in version 0.95 to discourage their use. These
-functions will be removed from libpng version 1.4.0.
-
-The preferred method of creating and initializing the libpng structures is
-via the png_create_read_struct(), png_create_write_struct(), and
-png_create_info_struct() because they isolate the size of the structures
-from the application, allow version error checking, and also allow the
-use of custom error handling routines during the initialization, which
-the old functions do not. The functions png_read_destroy() and
-png_write_destroy() do not actually free the memory that libpng
-allocated for these structs, but just reset the data structures, so they
-can be used instead of png_destroy_read_struct() and
-png_destroy_write_struct() if you feel there is too much system overhead
-allocating and freeing the png_struct for each image read.
-
-Setting the error callbacks via png_set_message_fn() before
-png_read_init() as was suggested in libpng-0.88 is no longer supported
-because this caused applications that do not use custom error functions
-to fail if the png_ptr was not initialized to zero. It is still possible
-to set the error callbacks AFTER png_read_init(), or to change them with
-png_set_error_fn(), which is essentially the same function, but with a new
-name to force compilation errors with applications that try to use the old
-method.
-
-Support for the sCAL, iCCP, iTXt, and sPLT chunks was added at libpng-1.0.6;
-however, iTXt support was not enabled by default.
-
-Starting with version 1.0.7, you can find out which version of the library
-you are using at run-time:
-
- png_uint_32 libpng_vn = png_access_version_number();
-
-The number libpng_vn is constructed from the major version, minor
-version with leading zero, and release number with leading zero,
-(e.g., libpng_vn for version 1.0.7 is 10007).
-
-Note that this function does not take a png_ptr, so you can call it
-before you've created one.
-
-You can also check which version of png.h you used when compiling your
-application:
-
- png_uint_32 application_vn = PNG_LIBPNG_VER;
-
-IX. Changes to Libpng from version 1.0.x to 1.2.x
-
-Support for user memory management was enabled by default. To
-accomplish this, the functions png_create_read_struct_2(),
-png_create_write_struct_2(), png_set_mem_fn(), png_get_mem_ptr(),
-png_malloc_default(), and png_free_default() were added.
-
-Support for the iTXt chunk has been enabled by default as of
-version 1.2.41.
-
-Support for certain MNG features was enabled.
-
-Support for numbered error messages was added. However, we never got
-around to actually numbering the error messages. The function
-png_set_strip_error_numbers() was added (Note: the prototype for this
-function was inadvertently removed from png.h in PNG_NO_ASSEMBLER_CODE
-builds of libpng-1.2.15. It was restored in libpng-1.2.36).
-
-The png_malloc_warn() function was added at libpng-1.2.3. This issues
-a png_warning and returns NULL instead of aborting when it fails to
-acquire the requested memory allocation.
-
-Support for setting user limits on image width and height was enabled
-by default. The functions png_set_user_limits(), png_get_user_width_max(),
-and png_get_user_height_max() were added at libpng-1.2.6.
-
-The png_set_add_alpha() function was added at libpng-1.2.7.
-
-The function png_set_expand_gray_1_2_4_to_8() was added at libpng-1.2.9.
-Unlike png_set_gray_1_2_4_to_8(), the new function does not expand the
-tRNS chunk to alpha. The png_set_gray_1_2_4_to_8() function is
-deprecated.
-
-A number of macro definitions in support of runtime selection of
-assembler code features (especially Intel MMX code support) were
-added at libpng-1.2.0:
-
- PNG_ASM_FLAG_MMX_SUPPORT_COMPILED
- PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU
- PNG_ASM_FLAG_MMX_READ_COMBINE_ROW
- PNG_ASM_FLAG_MMX_READ_INTERLACE
- PNG_ASM_FLAG_MMX_READ_FILTER_SUB
- PNG_ASM_FLAG_MMX_READ_FILTER_UP
- PNG_ASM_FLAG_MMX_READ_FILTER_AVG
- PNG_ASM_FLAG_MMX_READ_FILTER_PAETH
- PNG_ASM_FLAGS_INITIALIZED
- PNG_MMX_READ_FLAGS
- PNG_MMX_FLAGS
- PNG_MMX_WRITE_FLAGS
- PNG_MMX_FLAGS
-
-We added the following functions in support of runtime
-selection of assembler code features:
-
- png_get_mmx_flagmask()
- png_set_mmx_thresholds()
- png_get_asm_flags()
- png_get_mmx_bitdepth_threshold()
- png_get_mmx_rowbytes_threshold()
- png_set_asm_flags()
-
-We replaced all of these functions with simple stubs in libpng-1.2.20,
-when the Intel assembler code was removed due to a licensing issue.
-
-These macros are deprecated:
-
- PNG_READ_TRANSFORMS_NOT_SUPPORTED
- PNG_PROGRESSIVE_READ_NOT_SUPPORTED
- PNG_NO_SEQUENTIAL_READ_SUPPORTED
- PNG_WRITE_TRANSFORMS_NOT_SUPPORTED
- PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED
- PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED
-
-They have been replaced, respectively, by:
-
- PNG_NO_READ_TRANSFORMS
- PNG_NO_PROGRESSIVE_READ
- PNG_NO_SEQUENTIAL_READ
- PNG_NO_WRITE_TRANSFORMS
- PNG_NO_READ_ANCILLARY_CHUNKS
- PNG_NO_WRITE_ANCILLARY_CHUNKS
-
-PNG_MAX_UINT was replaced with PNG_UINT_31_MAX. It has been
-deprecated since libpng-1.0.16 and libpng-1.2.6.
-
-The function
- png_check_sig(sig, num)
-was replaced with
- !png_sig_cmp(sig, 0, num)
-It has been deprecated since libpng-0.90.
-
-The function
- png_set_gray_1_2_4_to_8()
-which also expands tRNS to alpha was replaced with
- png_set_expand_gray_1_2_4_to_8()
-which does not. It has been deprecated since libpng-1.0.18 and 1.2.9.
-
-X. Changes to Libpng from version 1.0.x/1.2.x to 1.4.x
-
-Private libpng prototypes and macro definitions were moved from
-png.h and pngconf.h into a new pngpriv.h header file.
-
-Functions png_set_benign_errors(), png_benign_error(), and
-png_chunk_benign_error() were added.
-
-Support for setting the maximum amount of memory that the application
-will allocate for reading chunks was added, as a security measure.
-The functions png_set_chunk_cache_max() and png_get_chunk_cache_max()
-were added to the library.
-
-We implemented support for I/O states by adding png_ptr member io_state
-and functions png_get_io_chunk_name() and png_get_io_state() in pngget.c
-
-We added PNG_TRANSFORM_GRAY_TO_RGB to the available high-level
-input transforms.
-
-Checking for and reporting of errors in the IHDR chunk is more thorough.
-
-Support for global arrays was removed, to improve thread safety.
-
-Some obsolete/deprecated macros and functions have been removed.
-
-Typecasted NULL definitions such as
- #define png_voidp_NULL (png_voidp)NULL
-were eliminated. If you used these in your application, just use
-NULL instead.
-
-The png_struct and info_struct members "trans" and "trans_values" were
-changed to "trans_alpha" and "trans_color", respectively.
-
-The obsolete, unused pnggccrd.c and pngvcrd.c files and related makefiles
-were removed.
-
-The PNG_1_0_X and PNG_1_2_X macros were eliminated.
-
-The PNG_LEGACY_SUPPORTED macro was eliminated.
-
-Many WIN32_WCE #ifdefs were removed.
-
-The functions png_read_init(info_ptr), png_write_init(info_ptr),
-png_info_init(info_ptr), png_read_destroy(), and png_write_destroy()
-have been removed. They have been deprecated since libpng-0.95.
-
-The png_permit_empty_plte() was removed. It has been deprecated
-since libpng-1.0.9. Use png_permit_mng_features() instead.
-
-We removed the obsolete stub functions png_get_mmx_flagmask(),
-png_set_mmx_thresholds(), png_get_asm_flags(),
-png_get_mmx_bitdepth_threshold(), png_get_mmx_rowbytes_threshold(),
-png_set_asm_flags(), and png_mmx_supported()
-
-We removed the obsolete png_check_sig(), png_memcpy_check(), and
-png_memset_check() functions. Instead use !png_sig_cmp(), memcpy(),
-and memset(), respectively.
-
-The function png_set_gray_1_2_4_to_8() was removed. It has been
-deprecated since libpng-1.0.18 and 1.2.9, when it was replaced with
-png_set_expand_gray_1_2_4_to_8() because the former function also
-expanded any tRNS chunk to an alpha channel.
-
-Macros for png_get_uint_16, png_get_uint_32, and png_get_int_32
-were added and are used by default instead of the corresponding
-functions. Unfortunately,
-from libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the
-function) incorrectly returned a value of type png_uint_32.
-
-We changed the prototype for png_malloc() from
- png_malloc(png_structp png_ptr, png_uint_32 size)
-to
- png_malloc(png_structp png_ptr, png_alloc_size_t size)
-
-This also applies to the prototype for the user replacement malloc_fn().
-
-The png_calloc() function was added and is used in place of
-of "png_malloc(); memset();" except in the case in png_read_png()
-where the array consists of pointers; in this case a "for" loop is used
-after the png_malloc() to set the pointers to NULL, to give robust.
-behavior in case the application runs out of memory part-way through
-the process.
-
-We changed the prototypes of png_get_compression_buffer_size() and
-png_set_compression_buffer_size() to work with size_t instead of
-png_uint_32.
-
-Support for numbered error messages was removed by default, since we
-never got around to actually numbering the error messages. The function
-png_set_strip_error_numbers() was removed from the library by default.
-
-The png_zalloc() and png_zfree() functions are no longer exported.
-The png_zalloc() function no longer zeroes out the memory that it
-allocates. Applications that called png_zalloc(png_ptr, number, size)
-can call png_calloc(png_ptr, number*size) instead, and can call
-png_free() instead of png_zfree().
-
-Support for dithering was disabled by default in libpng-1.4.0, because
-it has not been well tested and doesn't actually "dither".
-The code was not
-removed, however, and could be enabled by building libpng with
-PNG_READ_DITHER_SUPPORTED defined. In libpng-1.4.2, this support
-was re-enabled, but the function was renamed png_set_quantize() to
-reflect more accurately what it actually does. At the same time,
-the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros were also renamed to
-PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS, and PNG_READ_DITHER_SUPPORTED
-was renamed to PNG_READ_QUANTIZE_SUPPORTED.
-
-We removed the trailing '.' from the warning and error messages.
-
-XI. Changes to Libpng from version 1.4.x to 1.5.x
-
-From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the
-function) incorrectly returned a value of type png_uint_32.
-The incorrect macro was removed from libpng-1.4.5.
-
-Checking for invalid palette index on write was added at libpng
-1.5.10. If a pixel contains an invalid (out-of-range) index libpng issues
-a benign error. This is enabled by default because this condition is an
-error according to the PNG specification, Clause 11.3.2, but the error can
-be ignored in each png_ptr with
-
- png_set_check_for_invalid_index(png_ptr, allowed);
-
- allowed - one of
- 0: disable benign error (accept the
- invalid data without warning).
- 1: enable benign error (treat the
- invalid data as an error or a
- warning).
-
-If the error is ignored, or if png_benign_error() treats it as a warning,
-any invalid pixels are decoded as opaque black by the decoder and written
-as-is by the encoder.
-
-Retrieving the maximum palette index found was added at libpng-1.5.15.
-This statement must appear after png_read_png() or png_read_image() while
-reading, and after png_write_png() or png_write_image() while writing.
-
- int max_palette = png_get_palette_max(png_ptr, info_ptr);
-
-This will return the maximum palette index found in the image, or "-1" if
-the palette was not checked, or "0" if no palette was found. Note that this
-does not account for any palette index used by ancillary chunks such as the
-bKGD chunk; you must check those separately to determine the maximum
-palette index actually used.
-
-There are no substantial API changes between the non-deprecated parts of
-the 1.4.5 API and the 1.5.0 API; however, the ability to directly access
-members of the main libpng control structures, png_struct and png_info,
-deprecated in earlier versions of libpng, has been completely removed from
-libpng 1.5, and new private "pngstruct.h", "pnginfo.h", and "pngdebug.h"
-header files were created.
-
-We no longer include zlib.h in png.h. The include statement has been moved
-to pngstruct.h, where it is not accessible by applications. Applications that
-need access to information in zlib.h will need to add the '#include "zlib.h"'
-directive. It does not matter whether this is placed prior to or after
-the '"#include png.h"' directive.
-
-The png_sprintf(), png_strcpy(), and png_strncpy() macros are no longer used
-and were removed.
-
-We moved the png_strlen(), png_memcpy(), png_memset(), and png_memcmp()
-macros into a private header file (pngpriv.h) that is not accessible to
-applications.
-
-In png_get_iCCP, the type of "profile" was changed from png_charpp
-to png_bytepp, and in png_set_iCCP, from png_charp to png_const_bytep.
-
-There are changes of form in png.h, including new and changed macros to
-declare parts of the API. Some API functions with arguments that are
-pointers to data not modified within the function have been corrected to
-declare these arguments with const.
-
-Much of the internal use of C macros to control the library build has also
-changed and some of this is visible in the exported header files, in
-particular the use of macros to control data and API elements visible
-during application compilation may require significant revision to
-application code. (It is extremely rare for an application to do this.)
-
-Any program that compiled against libpng 1.4 and did not use deprecated
-features or access internal library structures should compile and work
-against libpng 1.5, except for the change in the prototype for
-png_get_iCCP() and png_set_iCCP() API functions mentioned above.
-
-libpng 1.5.0 adds PNG_ PASS macros to help in the reading and writing of
-interlaced images. The macros return the number of rows and columns in
-each pass and information that can be used to de-interlace and (if
-absolutely necessary) interlace an image.
-
-libpng 1.5.0 adds an API png_longjmp(png_ptr, value). This API calls
-the application-provided png_longjmp_ptr on the internal, but application
-initialized, longjmp buffer. It is provided as a convenience to avoid
-the need to use the png_jmpbuf macro, which had the unnecessary side
-effect of resetting the internal png_longjmp_ptr value.
-
-libpng 1.5.0 includes a complete fixed point API. By default this is
-present along with the corresponding floating point API. In general the
-fixed point API is faster and smaller than the floating point one because
-the PNG file format used fixed point, not floating point. This applies
-even if the library uses floating point in internal calculations. A new
-macro, PNG_FLOATING_ARITHMETIC_SUPPORTED, reveals whether the library
-uses floating point arithmetic (the default) or fixed point arithmetic
-internally for performance critical calculations such as gamma correction.
-In some cases, the gamma calculations may produce slightly different
-results. This has changed the results in png_rgb_to_gray and in alpha
-composition (png_set_background for example). This applies even if the
-original image was already linear (gamma == 1.0) and, therefore, it is
-not necessary to linearize the image. This is because libpng has *not*
-been changed to optimize that case correctly, yet.
-
-Fixed point support for the sCAL chunk comes with an important caveat;
-the sCAL specification uses a decimal encoding of floating point values
-and the accuracy of PNG fixed point values is insufficient for
-representation of these values. Consequently a "string" API
-(png_get_sCAL_s and png_set_sCAL_s) is the only reliable way of reading
-arbitrary sCAL chunks in the absence of either the floating point API or
-internal floating point calculations. Starting with libpng-1.5.0, both
-of these functions are present when PNG_sCAL_SUPPORTED is defined. Prior
-to libpng-1.5.0, their presence also depended upon PNG_FIXED_POINT_SUPPORTED
-being defined and PNG_FLOATING_POINT_SUPPORTED not being defined.
-
-Applications no longer need to include the optional distribution header
-file pngusr.h or define the corresponding macros during application
-build in order to see the correct variant of the libpng API. From 1.5.0
-application code can check for the corresponding _SUPPORTED macro:
-
-#ifdef PNG_INCH_CONVERSIONS_SUPPORTED
- /* code that uses the inch conversion APIs. */
-#endif
-
-This macro will only be defined if the inch conversion functions have been
-compiled into libpng. The full set of macros, and whether or not support
-has been compiled in, are available in the header file pnglibconf.h.
-This header file is specific to the libpng build. Notice that prior to
-1.5.0 the _SUPPORTED macros would always have the default definition unless
-reset by pngusr.h or by explicit settings on the compiler command line.
-These settings may produce compiler warnings or errors in 1.5.0 because
-of macro redefinition.
-
-Applications can now choose whether to use these macros or to call the
-corresponding function by defining PNG_USE_READ_MACROS or
-PNG_NO_USE_READ_MACROS before including png.h. Notice that this is
-only supported from 1.5.0; defining PNG_NO_USE_READ_MACROS prior to 1.5.0
-will lead to a link failure.
-
-Prior to libpng-1.5.4, the zlib compressor used the same set of parameters
-when compressing the IDAT data and textual data such as zTXt and iCCP.
-In libpng-1.5.4 we reinitialized the zlib stream for each type of data.
-We added five png_set_text_*() functions for setting the parameters to
-use with textual data.
-
-Prior to libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
-option was off by default, and slightly inaccurate scaling occurred.
-This option can no longer be turned off, and the choice of accurate
-or inaccurate 16-to-8 scaling is by using the new png_set_scale_16_to_8()
-API for accurate scaling or the old png_set_strip_16_to_8() API for simple
-chopping. In libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
-macro became PNG_READ_SCALE_16_TO_8_SUPPORTED, and the PNG_READ_16_TO_8
-macro became PNG_READ_STRIP_16_TO_8_SUPPORTED, to enable the two
-png_set_*_16_to_8() functions separately.
-
-Prior to libpng-1.5.4, the png_set_user_limits() function could only be
-used to reduce the width and height limits from the value of
-PNG_USER_WIDTH_MAX and PNG_USER_HEIGHT_MAX, although this document said
-that it could be used to override them. Now this function will reduce or
-increase the limits.
-
-Starting in libpng-1.5.22, default user limits were established. These
-can be overridden by application calls to png_set_user_limits(),
-png_set_user_chunk_cache_max(), and/or png_set_user_malloc_max().
-The limits are now
- max possible default
- png_user_width_max 0x7fffffff 1,000,000
- png_user_height_max 0x7fffffff 1,000,000
- png_user_chunk_cache_max 0 (unlimited) 1000
- png_user_chunk_malloc_max 0 (unlimited) 8,000,000
-
-The png_set_option() function (and the "options" member of the png struct) was
-added to libpng-1.5.15, with option PNG_ARM_NEON.
-
-The library now supports a complete fixed point implementation and can
-thus be used on systems that have no floating point support or very
-limited or slow support. Previously gamma correction, an essential part
-of complete PNG support, required reasonably fast floating point.
-
-As part of this the choice of internal implementation has been made
-independent of the choice of fixed versus floating point APIs and all the
-missing fixed point APIs have been implemented.
-
-The exact mechanism used to control attributes of API functions has
-changed, as described in the INSTALL file.
-
-A new test program, pngvalid, is provided in addition to pngtest.
-pngvalid validates the arithmetic accuracy of the gamma correction
-calculations and includes a number of validations of the file format.
-A subset of the full range of tests is run when "make check" is done
-(in the 'configure' build.) pngvalid also allows total allocated memory
-usage to be evaluated and performs additional memory overwrite validation.
-
-Many changes to individual feature macros have been made. The following
-are the changes most likely to be noticed by library builders who
-configure libpng:
-
-1) All feature macros now have consistent naming:
-
-#define PNG_NO_feature turns the feature off
-#define PNG_feature_SUPPORTED turns the feature on
-
-pnglibconf.h contains one line for each feature macro which is either:
-
-#define PNG_feature_SUPPORTED
-
-if the feature is supported or:
-
-/*#undef PNG_feature_SUPPORTED*/
-
-if it is not. Library code consistently checks for the 'SUPPORTED' macro.
-It does not, and libpng applications should not, check for the 'NO' macro
-which will not normally be defined even if the feature is not supported.
-The 'NO' macros are only used internally for setting or not setting the
-corresponding 'SUPPORTED' macros.
-
-Compatibility with the old names is provided as follows:
-
-PNG_INCH_CONVERSIONS turns on PNG_INCH_CONVERSIONS_SUPPORTED
-
-And the following definitions disable the corresponding feature:
-
-PNG_SETJMP_NOT_SUPPORTED disables SETJMP
-PNG_READ_TRANSFORMS_NOT_SUPPORTED disables READ_TRANSFORMS
-PNG_NO_READ_COMPOSITED_NODIV disables READ_COMPOSITE_NODIV
-PNG_WRITE_TRANSFORMS_NOT_SUPPORTED disables WRITE_TRANSFORMS
-PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED disables READ_ANCILLARY_CHUNKS
-PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED disables WRITE_ANCILLARY_CHUNKS
-
-Library builders should remove use of the above, inconsistent, names.
-
-2) Warning and error message formatting was previously conditional on
-the STDIO feature. The library has been changed to use the
-CONSOLE_IO feature instead. This means that if CONSOLE_IO is disabled
-the library no longer uses the printf(3) functions, even though the
-default read/write implementations use (FILE) style stdio.h functions.
-
-3) Three feature macros now control the fixed/floating point decisions:
-
-PNG_FLOATING_POINT_SUPPORTED enables the floating point APIs
-
-PNG_FIXED_POINT_SUPPORTED enables the fixed point APIs; however, in
-practice these are normally required internally anyway (because the PNG
-file format is fixed point), therefore in most cases PNG_NO_FIXED_POINT
-merely stops the function from being exported.
-
-PNG_FLOATING_ARITHMETIC_SUPPORTED chooses between the internal floating
-point implementation or the fixed point one. Typically the fixed point
-implementation is larger and slower than the floating point implementation
-on a system that supports floating point; however, it may be faster on a
-system which lacks floating point hardware and therefore uses a software
-emulation.
-
-4) Added PNG_{READ,WRITE}_INT_FUNCTIONS_SUPPORTED. This allows the
-functions to read and write ints to be disabled independently of
-PNG_USE_READ_MACROS, which allows libpng to be built with the functions
-even though the default is to use the macros - this allows applications
-to choose at app buildtime whether or not to use macros (previously
-impossible because the functions weren't in the default build.)
-
-XII. Changes to Libpng from version 1.5.x to 1.6.x
-
-A "simplified API" has been added (see documentation in png.h and a simple
-example in contrib/examples/pngtopng.c). The new publicly visible API
-includes the following:
-
- macros:
- PNG_FORMAT_*
- PNG_IMAGE_*
- structures:
- png_control
- png_image
- read functions
- png_image_begin_read_from_file()
- png_image_begin_read_from_stdio()
- png_image_begin_read_from_memory()
- png_image_finish_read()
- png_image_free()
- write functions
- png_image_write_to_file()
- png_image_write_to_memory()
- png_image_write_to_stdio()
-
-Starting with libpng-1.6.0, you can configure libpng to prefix all exported
-symbols, using the PNG_PREFIX macro.
-
-We no longer include string.h in png.h. The include statement has been moved
-to pngpriv.h, where it is not accessible by applications. Applications that
-need access to information in string.h must add an '#include <string.h>'
-directive. It does not matter whether this is placed prior to or after
-the '#include "png.h"' directive.
-
-The following API are now DEPRECATED:
- png_info_init_3()
- png_convert_to_rfc1123() which has been replaced
- with png_convert_to_rfc1123_buffer()
- png_malloc_default()
- png_free_default()
- png_reset_zstream()
-
-The following have been removed:
- png_get_io_chunk_name(), which has been replaced
- with png_get_io_chunk_type(). The new
- function returns a 32-bit integer instead of
- a string.
- The png_sizeof(), png_strlen(), png_memcpy(), png_memcmp(), and
- png_memset() macros are no longer used in the libpng sources and
- have been removed. These had already been made invisible to applications
- (i.e., defined in the private pngpriv.h header file) since libpng-1.5.0.
-
-The signatures of many exported functions were changed, such that
- png_structp became png_structrp or png_const_structrp
- png_infop became png_inforp or png_const_inforp
-where "rp" indicates a "restricted pointer".
-
-Dropped support for 16-bit platforms. The support for FAR/far types has
-been eliminated and the definition of png_alloc_size_t is now controlled
-by a flag so that 'small size_t' systems can select it if necessary.
-
-Error detection in some chunks has improved; in particular the iCCP chunk
-reader now does pretty complete validation of the basic format. Some bad
-profiles that were previously accepted are now accepted with a warning or
-rejected, depending upon the png_set_benign_errors() setting, in particular
-the very old broken Microsoft/HP 3144-byte sRGB profile. Starting with
-libpng-1.6.11, recognizing and checking sRGB profiles can be avoided by
-means of
-
- #if defined(PNG_SKIP_sRGB_CHECK_PROFILE) && \
- defined(PNG_SET_OPTION_SUPPORTED)
- png_set_option(png_ptr, PNG_SKIP_sRGB_CHECK_PROFILE,
- PNG_OPTION_ON);
- #endif
-
-It's not a good idea to do this if you are using the "simplified API",
-which needs to be able to recognize sRGB profiles conveyed via the iCCP
-chunk.
-
-The PNG spec requirement that only grayscale profiles may appear in images
-with color type 0 or 4 and that even if the image only contains gray pixels,
-only RGB profiles may appear in images with color type 2, 3, or 6, is now
-enforced. The sRGB chunk is allowed to appear in images with any color type
-and is interpreted by libpng to convey a one-tracer-curve gray profile or a
-three-tracer-curve RGB profile as appropriate.
-
-Libpng 1.5.x erroneously used /MD for Debug DLL builds; if you used the debug
-builds in your app and you changed your app to use /MD you will need to
-change it back to /MDd for libpng 1.6.x.
-
-Prior to libpng-1.6.0 a warning would be issued if the iTXt chunk contained
-an empty language field or an empty translated keyword. Both of these
-are allowed by the PNG specification, so these warnings are no longer issued.
-
-The library now issues an error if the application attempts to set a
-transform after it calls png_read_update_info() or if it attempts to call
-both png_read_update_info() and png_start_read_image() or to call either
-of them more than once.
-
-The default condition for benign_errors is now to treat benign errors as
-warnings while reading and as errors while writing.
-
-The library now issues a warning if both background processing and RGB to
-gray are used when gamma correction happens. As with previous versions of
-the library the results are numerically very incorrect in this case.
-
-There are some minor arithmetic changes in some transforms such as
-png_set_background(), that might be detected by certain regression tests.
-
-Unknown chunk handling has been improved internally, without any API change.
-This adds more correct option control of the unknown handling, corrects
-a pre-existing bug where the per-chunk 'keep' setting is ignored, and makes
-it possible to skip IDAT chunks in the sequential reader.
-
-The machine-generated configure files are no longer included in branches
-libpng16 and later of the GIT repository. They continue to be included
-in the tarball releases, however.
-
-Libpng-1.6.0 through 1.6.2 used the CMF bytes at the beginning of the IDAT
-stream to set the size of the sliding window for reading instead of using the
-default 32-kbyte sliding window size. It was discovered that there are
-hundreds of PNG files in the wild that have incorrect CMF bytes that caused
-zlib to issue the "invalid distance too far back" error and reject the file.
-Libpng-1.6.3 and later calculate their own safe CMF from the image dimensions,
-provide a way to revert to the libpng-1.5.x behavior (ignoring the CMF bytes
-and using a 32-kbyte sliding window), by using
-
- png_set_option(png_ptr, PNG_MAXIMUM_INFLATE_WINDOW,
- PNG_OPTION_ON);
-
-and provide a tool (contrib/tools/pngfix) for rewriting a PNG file while
-optimizing the CMF bytes in its IDAT chunk correctly.
-
-Libpng-1.6.0 and libpng-1.6.1 wrote uncompressed iTXt chunks with the wrong
-length, which resulted in PNG files that cannot be read beyond the bad iTXt
-chunk. This error was fixed in libpng-1.6.3, and a tool (called
-contrib/tools/png-fix-itxt) has been added to the libpng distribution.
-
-Starting with libpng-1.6.17, the PNG_SAFE_LIMITS macro was eliminated
-and safe limits are used by default (users who need larger limits
-can still override them at compile time or run time, as described above).
-
-The new limits are
- default spec limit
- png_user_width_max 1,000,000 2,147,483,647
- png_user_height_max 1,000,000 2,147,483,647
- png_user_chunk_cache_max 128 unlimited
- png_user_chunk_malloc_max 8,000,000 unlimited
-
-Starting with libpng-1.6.18, a PNG_RELEASE_BUILD macro was added, which allows
-library builders to control compilation for an installed system (a release build).
-It can be set for testing debug or beta builds to ensure that they will compile
-when the build type is switched to RC or STABLE. In essence this overrides the
-PNG_LIBPNG_BUILD_BASE_TYPE definition which is not directly user controllable.
-
-Starting with libpng-1.6.19, attempting to set an over-length PLTE chunk
-is an error. Previously this requirement of the PNG specification was not
-enforced, and the palette was always limited to 256 entries. An over-length
-PLTE chunk found in an input PNG is silently truncated.
-
-Starting with libpng-1.6.31, the eXIf chunk is supported. Libpng does not
-attempt to decode the Exif profile; it simply returns a byte array
-containing the profile to the calling application which must do its own
-decoding.
-
-XIII. Detecting libpng
-
-The png_get_io_ptr() function has been present since libpng-0.88, has never
-changed, and is unaffected by conditional compilation macros. It is the
-best choice for use in configure scripts for detecting the presence of any
-libpng version since 0.88. In an autoconf "configure.in" you could use
-
- AC_CHECK_LIB(png, png_get_io_ptr, ...
-
-XV. Source code repository
-
-Since about February 2009, version 1.2.34, libpng has been under "git" source
-control. The git repository was built from old libpng-x.y.z.tar.gz files
-going back to version 0.70. You can access the git repository (read only)
-at
-
- https://github.com/glennrp/libpng or
- https://git.code.sf.net/p/libpng/code.git
-
-or you can browse it with a web browser at
-
- https://github.com/glennrp/libpng or
- https://sourceforge.net/p/libpng/code/ci/libpng16/tree/
-
-Patches can be sent to png-mng-implement at lists.sourceforge.net or
-uploaded to the libpng bug tracker at
-
- https://libpng.sourceforge.io/
-
-or as a "pull request" to
-
- https://github.com/glennrp/libpng/pulls
-
-We also accept patches built from the tar or zip distributions, and
-simple verbal descriptions of bug fixes, reported either to the
-SourceForge bug tracker, to the png-mng-implement at lists.sf.net
-mailing list, as github issues.
-
-XV. Coding style
-
-Our coding style is similar to the "Allman" style
-(See https://en.wikipedia.org/wiki/Indent_style#Allman_style), with curly
-braces on separate lines:
-
- if (condition)
- {
- action;
- }
-
- else if (another condition)
- {
- another action;
- }
-
-The braces can be omitted from simple one-line actions:
-
- if (condition)
- return 0;
-
-We use 3-space indentation, except for continued statements which
-are usually indented the same as the first line of the statement
-plus four more spaces.
-
-For macro definitions we use 2-space indentation, always leaving the "#"
-in the first column.
-
- #ifndef PNG_NO_FEATURE
- # ifndef PNG_FEATURE_SUPPORTED
- # define PNG_FEATURE_SUPPORTED
- # endif
- #endif
-
-Comments appear with the leading "/*" at the same indentation as
-the statement that follows the comment:
-
- /* Single-line comment */
- statement;
-
- /* This is a multiple-line
- * comment.
- */
- statement;
-
-Very short comments can be placed after the end of the statement
-to which they pertain:
-
- statement; /* comment */
-
-We don't use C++ style ("//") comments. We have, however,
-used them in the past in some now-abandoned MMX assembler
-code.
-
-Functions and their curly braces are not indented, and
-exported functions are marked with PNGAPI:
-
- /* This is a public function that is visible to
- * application programmers. It does thus-and-so.
- */
- void PNGAPI
- png_exported_function(png_ptr, png_info, foo)
- {
- body;
- }
-
-The return type and decorations are placed on a separate line
-ahead of the function name, as illustrated above.
-
-The prototypes for all exported functions appear in png.h,
-above the comment that says
-
- /* Maintainer: Put new public prototypes here ... */
-
-We mark all non-exported functions with "/* PRIVATE */"":
-
- void /* PRIVATE */
- png_non_exported_function(png_ptr, png_info, foo)
- {
- body;
- }
-
-The prototypes for non-exported functions (except for those in
-pngtest) appear in pngpriv.h above the comment that says
-
- /* Maintainer: Put new private prototypes here ^ */
-
-To avoid polluting the global namespace, the names of all exported
-functions and variables begin with "png_", and all publicly visible C
-preprocessor macros begin with "PNG". We request that applications that
-use libpng *not* begin any of their own symbols with either of these strings.
-
-We put a space after the "sizeof" operator and we omit the
-optional parentheses around its argument when the argument
-is an expression, not a type name, and we always enclose the
-sizeof operator, with its argument, in parentheses:
-
- (sizeof (png_uint_32))
- (sizeof array)
-
-Prior to libpng-1.6.0 we used a "png_sizeof()" macro, formatted as
-though it were a function.
-
-Control keywords if, for, while, and switch are always followed by a space
-to distinguish them from function calls, which have no trailing space.
-
-We put a space after each comma and after each semicolon
-in "for" statements, and we put spaces before and after each
-C binary operator and after "for" or "while", and before
-"?". We don't put a space between a typecast and the expression
-being cast, nor do we put one between a function name and the
-left parenthesis that follows it:
-
- for (i = 2; i > 0; --i)
- y[i] = a(x) + (int)b;
-
-We prefer #ifdef and #ifndef to #if defined() and #if !defined()
-when there is only one macro being tested. We always use parentheses
-with "defined".
-
-We express integer constants that are used as bit masks in hex format,
-with an even number of lower-case hex digits, and to make them unsigned
-(e.g., 0x00U, 0xffU, 0x0100U) and long if they are greater than 0x7fff
-(e.g., 0xffffUL).
-
-We prefer to use underscores rather than camelCase in names, except
-for a few type names that we inherit from zlib.h.
-
-We prefer "if (something != 0)" and "if (something == 0)" over
-"if (something)" and if "(!something)", respectively, and for pointers
-we prefer "if (some_pointer != NULL)" or "if (some_pointer == NULL)".
-
-We do not use the TAB character for indentation in the C sources.
-
-Lines do not exceed 80 characters.
-
-Other rules can be inferred by inspecting the libpng source.
diff --git a/3rdparty/libpng/libpng-1.6.37/libpng.3 b/3rdparty/libpng/libpng-1.6.37/libpng.3
deleted file mode 100644
index f374235..0000000
--- a/3rdparty/libpng/libpng-1.6.37/libpng.3
+++ /dev/null
@@ -1,6052 +0,0 @@
-.TH LIBPNG 3 "April 14, 2019"
-.SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.6.37
-
-.SH SYNOPSIS
-\fB#include <png.h>\fP
-
-\fBpng_uint_32 png_access_version_number (void);\fP
-
-\fBvoid png_benign_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP
-
-\fBvoid png_build_grayscale_palette (int \fP\fIbit_depth\fP\fB, png_colorp \fIpalette\fP\fB);\fP
-
-\fBpng_voidp png_calloc (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIsize\fP\fB);\fP
-
-\fBvoid png_chunk_benign_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP
-
-\fBvoid png_chunk_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP
-
-\fBvoid png_chunk_warning (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fImessage\fP\fB);\fP
-
-\fBvoid png_convert_from_struct_tm (png_timep \fP\fIptime\fP\fB, struct tm FAR * \fIttime\fP\fB);\fP
-
-\fBvoid png_convert_from_time_t (png_timep \fP\fIptime\fP\fB, time_t \fIttime\fP\fB);\fP
-
-\fBpng_charp png_convert_to_rfc1123 (png_structp \fP\fIpng_ptr\fP\fB, png_timep \fIptime\fP\fB);\fP
-
-\fBpng_infop png_create_info_struct (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_structp png_create_read_struct (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarn_fn\fP\fB);\fP
-
-\fBpng_structp png_create_read_struct_2 (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fP\fIwarn_fn\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP
-
-\fBpng_structp png_create_write_struct (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarn_fn\fP\fB);\fP
-
-\fBpng_structp png_create_write_struct_2 (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fP\fIwarn_fn\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP
-
-\fBvoid png_data_freer (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIfreer\fP\fB, png_uint_32 \fImask\fP\fB);\fP
-
-\fBvoid png_destroy_info_struct (png_structp \fP\fIpng_ptr\fP\fB, png_infopp \fIinfo_ptr_ptr\fP\fB);\fP
-
-\fBvoid png_destroy_read_struct (png_structpp \fP\fIpng_ptr_ptr\fP\fB, png_infopp \fP\fIinfo_ptr_ptr\fP\fB, png_infopp \fIend_info_ptr_ptr\fP\fB);\fP
-
-\fBvoid png_destroy_write_struct (png_structpp \fP\fIpng_ptr_ptr\fP\fB, png_infopp \fIinfo_ptr_ptr\fP\fB);\fP
-
-\fBvoid png_err (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP
-
-\fBvoid png_free (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fIptr\fP\fB);\fP
-
-\fBvoid png_free_chunk_list (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_free_default (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fIptr\fP\fB);\fP
-
-\fBvoid png_free_data (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fInum\fP\fB);\fP
-
-\fBpng_byte png_get_bit_depth (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_bKGD (png_const_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_16p \fI*background\fP\fB);\fP
-
-\fBpng_byte png_get_channels (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_cHRM (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, double \fP\fI*white_x\fP\fB, double \fP\fI*white_y\fP\fB, double \fP\fI*red_x\fP\fB, double \fP\fI*red_y\fP\fB, double \fP\fI*green_x\fP\fB, double \fP\fI*green_y\fP\fB, double \fP\fI*blue_x\fP\fB, double \fI*blue_y\fP\fB);\fP
-
-\fBpng_uint_32 png_get_cHRM_fixed (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*white_x\fP\fB, png_uint_32 \fP\fI*white_y\fP\fB, png_uint_32 \fP\fI*red_x\fP\fB, png_uint_32 \fP\fI*red_y\fP\fB, png_uint_32 \fP\fI*green_x\fP\fB, png_uint_32 \fP\fI*green_y\fP\fB, png_uint_32 \fP\fI*blue_x\fP\fB, png_uint_32 \fI*blue_y\fP\fB);\fP
-
-\fBpng_uint_32 png_get_cHRM_XYZ (png_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, double \fP\fI*red_X\fP\fB, double \fP\fI*red_Y\fP\fB, double \fP\fI*red_Z\fP\fB, double \fP\fI*green_X\fP\fB, double \fP\fI*green_Y\fP\fB, double \fP\fI*green_Z\fP\fB, double \fP\fI*blue_X\fP\fB, double \fP\fI*blue_Y\fP\fB, double \fI*blue_Z\fP\fB);\fP
-
-\fBpng_uint_32 png_get_cHRM_XYZ_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_fixed_point \fP\fI*int_red_X\fP\fB, png_fixed_point \fP\fI*int_red_Y\fP\fB, png_fixed_point \fP\fI*int_red_Z\fP\fB, png_fixed_point \fP\fI*int_green_X\fP\fB, png_fixed_point \fP\fI*int_green_Y\fP\fB, png_fixed_point \fP\fI*int_green_Z\fP\fB, png_fixed_point \fP\fI*int_blue_X\fP\fB, png_fixed_point \fP\fI*int_blue_Y\fP\fB, png_fixed_point \fI*int_blue_Z\fP\fB);\fP
-
-\fBpng_uint_32 png_get_chunk_cache_max (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_alloc_size_t png_get_chunk_malloc_max (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_byte png_get_color_type (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_compression_buffer_size (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_byte png_get_compression_type (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_byte png_get_copyright (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_current_row_number \fI(png_const_structp\fP\fB);\fP
-
-\fBpng_byte png_get_current_pass_number \fI(png_const_structp\fP\fB);\fP
-
-\fBpng_voidp png_get_error_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_byte png_get_filter_type (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_gAMA (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, double \fI*file_gamma\fP\fB);\fP
-
-\fBpng_uint_32 png_get_gAMA_fixed (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fI*int_file_gamma\fP\fB);\fP
-
-\fBpng_byte png_get_header_ver (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_byte png_get_header_version (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_eXIf (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fI*exif\fP\fB);\fP
-
-\fBpng_uint_32 png_get_eXIf_1 (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_unit_32 \fP\fI*num_exif\fP\fB, png_bytep \fI*exif\fP\fB);\fP
-
-\fBpng_uint_32 png_get_hIST (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_16p \fI*hist\fP\fB);\fP
-
-\fBpng_uint_32 png_get_iCCP (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_charpp \fP\fIname\fP\fB, int \fP\fI*compression_type\fP\fB, png_bytepp \fP\fIprofile\fP\fB, png_uint_32 \fI*proflen\fP\fB);\fP
-
-\fBpng_uint_32 png_get_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*width\fP\fB, png_uint_32 \fP\fI*height\fP\fB, int \fP\fI*bit_depth\fP\fB, int \fP\fI*color_type\fP\fB, int \fP\fI*interlace_type\fP\fB, int \fP\fI*compression_type\fP\fB, int \fI*filter_type\fP\fB);\fP
-
-\fBpng_uint_32 png_get_image_height (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_image_width (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_int_32 png_get_int_32 (png_bytep \fIbuf\fP\fB);\fP
-
-\fBpng_byte png_get_interlace_type (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_io_chunk_type (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_voidp png_get_io_ptr (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_io_state (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_byte png_get_libpng_ver (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBint png_get_palette_max(png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_voidp png_get_mem_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_oFFs (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*offset_x\fP\fB, png_uint_32 \fP\fI*offset_y\fP\fB, int \fI*unit_type\fP\fB);\fP
-
-\fBpng_uint_32 png_get_pCAL (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_charp \fP\fI*purpose\fP\fB, png_int_32 \fP\fI*X0\fP\fB, png_int_32 \fP\fI*X1\fP\fB, int \fP\fI*type\fP\fB, int \fP\fI*nparams\fP\fB, png_charp \fP\fI*units\fP\fB, png_charpp \fI*params\fP\fB);\fP
-
-\fBpng_uint_32 png_get_pHYs (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*res_x\fP\fB, png_uint_32 \fP\fI*res_y\fP\fB, int \fI*unit_type\fP\fB);\fP
-
-\fBfloat png_get_pixel_aspect_ratio (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_pHYs_dpi (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*res_x\fP\fB, png_uint_32 \fP\fI*res_y\fP\fB, int \fI*unit_type\fP\fB);\fP
-
-\fBpng_fixed_point png_get_pixel_aspect_ratio_fixed (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_pixels_per_inch (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_pixels_per_meter (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_voidp png_get_progressive_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_PLTE (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_colorp \fP\fI*palette\fP\fB, int \fI*num_palette\fP\fB);\fP
-
-\fBpng_byte png_get_rgb_to_gray_status (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_rowbytes (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_bytepp png_get_rows (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_sBIT (png_const_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_8p \fI*sig_bit\fP\fB);\fP
-
-\fBvoid png_get_sCAL (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, int* \fP\fIunit\fP\fB, double* \fP\fIwidth\fP\fB, double* \fIheight\fP\fB);\fP
-
-\fBvoid png_get_sCAL_fixed (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, int* \fP\fIunit\fP\fB, png_fixed_pointp \fP\fIwidth\fP\fB, png_fixed_pointp \fIheight\fP\fB);\fP
-
-\fBvoid png_get_sCAL_s (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, int* \fP\fIunit\fP\fB, png_charpp \fP\fIwidth\fP\fB, png_charpp \fIheight\fP\fB);\fP
-
-\fBpng_bytep png_get_signature (png_const_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_sPLT (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_spalette_p \fI*splt_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_sRGB (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, int \fI*file_srgb_intent\fP\fB);\fP
-
-\fBpng_uint_32 png_get_text (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_textp \fP\fI*text_ptr\fP\fB, int \fI*num_text\fP\fB);\fP
-
-\fBpng_uint_32 png_get_tIME (png_const_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_timep \fI*mod_time\fP\fB);\fP
-
-\fBpng_uint_32 png_get_tRNS (png_const_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fP\fI*trans_alpha\fP\fB, int \fP\fI*num_trans\fP\fB, png_color_16p \fI*trans_color\fP\fB);\fP
-
-\fB/* This function is really an inline macro. \fI*/
-
-\fBpng_uint_16 png_get_uint_16 (png_bytep \fIbuf\fP\fB);\fP
-
-\fBpng_uint_32 png_get_uint_31 (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIbuf\fP\fB);\fP
-
-\fB/* This function is really an inline macro. \fI*/
-
-\fBpng_uint_32 png_get_uint_32 (png_bytep \fIbuf\fP\fB);\fP
-
-\fBpng_uint_32 png_get_unknown_chunks (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_unknown_chunkpp \fIunknowns\fP\fB);\fP
-
-\fBpng_voidp png_get_user_chunk_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_user_height_max (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_voidp png_get_user_transform_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_user_width_max (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_valid (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIflag\fP\fB);\fP
-
-\fBfloat png_get_x_offset_inches (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_fixed_point png_get_x_offset_inches_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_int_32 png_get_x_offset_microns (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_int_32 png_get_x_offset_pixels (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_x_pixels_per_inch (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_x_pixels_per_meter (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBfloat png_get_y_offset_inches (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_fixed_point png_get_y_offset_inches_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_int_32 png_get_y_offset_microns (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_int_32 png_get_y_offset_pixels (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_y_pixels_per_inch (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_get_y_pixels_per_meter (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBint png_handle_as_unknown (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIchunk_name\fP\fB);\fP
-
-\fBint png_image_begin_read_from_file (png_imagep \fP\fIimage\fP\fB, const char \fI*file_name\fP\fB);\fP
-
-\fBint png_image_begin_read_from_stdio (png_imagep \fP\fIimage\fP\fB, FILE* \fIfile\fP\fB);\fP
-
-\fBint, png_image_begin_read_from_memory (png_imagep \fP\fIimage\fP\fB, png_const_voidp \fP\fImemory\fP\fB, size_t \fIsize\fP\fB);\fP
-
-\fBint png_image_finish_read (png_imagep \fP\fIimage\fP\fB, png_colorp \fP\fIbackground\fP\fB, void \fP\fI*buffer\fP\fB, png_int_32 \fP\fIrow_stride\fP\fB, void \fI*colormap\fP\fB);\fP
-
-\fBvoid png_image_free (png_imagep \fIimage\fP\fB);\fP
-
-\fBint png_image_write_to_file (png_imagep \fP\fIimage\fP\fB, const char \fP\fI*file\fP\fB, int \fP\fIconvert_to_8bit\fP\fB, const void \fP\fI*buffer\fP\fB, png_int_32 \fP\fIrow_stride\fP\fB, void \fI*colormap\fP\fB);\fP
-
-\fBint png_image_write_to_memory (png_imagep \fP\fIimage\fP\fB, void \fP\fI*memory\fP\fB, png_alloc_size_t * PNG_RESTRICT \fP\fImemory_bytes\fP\fB, int \fP\fIconvert_to_8_bit\fP\fB, const void \fP\fI*buffer\fP\fB, png_int_32 \fP\fIrow_stride\fP\fB, const void \fI*colormap\fP\fB);\fP
-
-\fBint png_image_write_to_stdio (png_imagep \fP\fIimage\fP\fB, FILE \fP\fI*file\fP\fB, int \fP\fIconvert_to_8_bit\fP\fB, const void \fP\fI*buffer\fP\fB, png_int_32 \fP\fIrow_stride\fP\fB, void \fI*colormap\fP\fB);\fP
-
-\fBvoid png_info_init_3 (png_infopp \fP\fIinfo_ptr\fP\fB, size_t \fIpng_info_struct_size\fP\fB);\fP
-
-\fBvoid png_init_io (png_structp \fP\fIpng_ptr\fP\fB, FILE \fI*fp\fP\fB);\fP
-
-\fBvoid png_longjmp (png_structp \fP\fIpng_ptr\fP\fB, int \fIval\fP\fB);\fP
-
-\fBpng_voidp png_malloc (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIsize\fP\fB);\fP
-
-\fBpng_voidp png_malloc_default (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIsize\fP\fB);\fP
-
-\fBpng_voidp png_malloc_warn (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIsize\fP\fB);\fP
-
-\fBpng_uint_32 png_permit_mng_features (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fImng_features_permitted\fP\fB);\fP
-
-\fBvoid png_process_data (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fP\fIbuffer\fP\fB, size_t \fIbuffer_size\fP\fB);\fP
-
-\fBsize_t png_process_data_pause (png_structp \fP\fIpng_ptr\fP\fB, int \fIsave\fP\fB);\fP
-
-\fBpng_uint_32 png_process_data_skip (png_structp \fP\fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_progressive_combine_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIold_row\fP\fB, png_bytep \fInew_row\fP\fB);\fP
-
-\fBvoid png_read_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBvoid png_read_image (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fIimage\fP\fB);\fP
-
-\fBvoid png_read_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBvoid png_read_png (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fItransforms\fP\fB, png_voidp \fIparams\fP\fB);\fP
-
-\fBvoid png_read_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIrow\fP\fB, png_bytep \fIdisplay_row\fP\fB);\fP
-
-\fBvoid png_read_rows (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fP\fIrow\fP\fB, png_bytepp \fP\fIdisplay_row\fP\fB, png_uint_32 \fInum_rows\fP\fB);\fP
-
-\fBvoid png_read_update_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBint png_reset_zstream (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_save_int_32 (png_bytep \fP\fIbuf\fP\fB, png_int_32 \fIi\fP\fB);\fP
-
-\fBvoid png_save_uint_16 (png_bytep \fP\fIbuf\fP\fB, unsigned int \fIi\fP\fB);\fP
-
-\fBvoid png_save_uint_32 (png_bytep \fP\fIbuf\fP\fB, png_uint_32 \fIi\fP\fB);\fP
-
-\fBvoid png_set_add_alpha (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, int \fIflags\fP\fB);\fP
-
-\fBvoid png_set_alpha_mode (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fImode\fP\fB, double \fIoutput_gamma\fP\fB);\fP
-
-\fBvoid png_set_alpha_mode_fixed (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fImode\fP\fB, png_fixed_point \fIoutput_gamma\fP\fB);\fP
-
-\fBvoid png_set_background (png_structp \fP\fIpng_ptr\fP\fB, png_color_16p \fP\fIbackground_color\fP\fB, int \fP\fIbackground_gamma_code\fP\fB, int \fP\fIneed_expand\fP\fB, double \fIbackground_gamma\fP\fB);\fP
-
-\fBvoid png_set_background_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_color_16p \fP\fIbackground_color\fP\fB, int \fP\fIbackground_gamma_code\fP\fB, int \fP\fIneed_expand\fP\fB, png_uint_32 \fIbackground_gamma\fP\fB);\fP
-
-\fBvoid png_set_benign_errors (png_structp \fP\fIpng_ptr\fP\fB, int \fIallowed\fP\fB);\fP
-
-\fBvoid png_set_bgr (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_bKGD (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_16p \fIbackground\fP\fB);\fP
-
-\fBvoid png_set_check_for_invalid_index (png_structrp \fP\fIpng_ptr\fP\fB, int \fIallowed\fP\fB);\fP
-
-\fBvoid png_set_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fP\fIwhite_x\fP\fB, double \fP\fIwhite_y\fP\fB, double \fP\fIred_x\fP\fB, double \fP\fIred_y\fP\fB, double \fP\fIgreen_x\fP\fB, double \fP\fIgreen_y\fP\fB, double \fP\fIblue_x\fP\fB, double \fIblue_y\fP\fB);\fP
-
-\fBvoid png_set_cHRM_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIwhite_x\fP\fB, png_uint_32 \fP\fIwhite_y\fP\fB, png_uint_32 \fP\fIred_x\fP\fB, png_uint_32 \fP\fIred_y\fP\fB, png_uint_32 \fP\fIgreen_x\fP\fB, png_uint_32 \fP\fIgreen_y\fP\fB, png_uint_32 \fP\fIblue_x\fP\fB, png_uint_32 \fIblue_y\fP\fB);\fP
-
-\fBvoid png_set_cHRM_XYZ (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fP\fIred_X\fP\fB, double \fP\fIred_Y\fP\fB, double \fP\fIred_Z\fP\fB, double \fP\fIgreen_X\fP\fB, double \fP\fIgreen_Y\fP\fB, double \fP\fIgreen_Z\fP\fB, double \fP\fIblue_X\fP\fB, double \fP\fIblue_Y\fP\fB, double \fIblue_Z\fP\fB);\fP
-
-\fBvoid png_set_cHRM_XYZ_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_fixed_point \fP\fIint_red_X\fP\fB, png_fixed_point \fP\fIint_red_Y\fP\fB, png_fixed_point \fP\fIint_red_Z\fP\fB, png_fixed_point \fP\fIint_green_X\fP\fB, png_fixed_point \fP\fIint_green_Y\fP\fB, png_fixed_point \fP\fIint_green_Z\fP\fB, png_fixed_point \fP\fIint_blue_X\fP\fB, png_fixed_point \fP\fIint_blue_Y\fP\fB, png_fixed_point \fIint_blue_Z\fP\fB);\fP
-
-\fBvoid png_set_chunk_cache_max (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIuser_chunk_cache_max\fP\fB);\fP
-
-\fBvoid png_set_compression_level (png_structp \fP\fIpng_ptr\fP\fB, int \fIlevel\fP\fB);\fP
-
-\fBvoid png_set_compression_mem_level (png_structp \fP\fIpng_ptr\fP\fB, int \fImem_level\fP\fB);\fP
-
-\fBvoid png_set_compression_method (png_structp \fP\fIpng_ptr\fP\fB, int \fImethod\fP\fB);\fP
-
-\fBvoid png_set_compression_strategy (png_structp \fP\fIpng_ptr\fP\fB, int \fIstrategy\fP\fB);\fP
-
-\fBvoid png_set_compression_window_bits (png_structp \fP\fIpng_ptr\fP\fB, int \fIwindow_bits\fP\fB);\fP
-
-\fBvoid png_set_crc_action (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIcrit_action\fP\fB, int \fIancil_action\fP\fB);\fP
-
-\fBvoid png_set_error_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarning_fn\fP\fB);\fP
-
-\fBvoid png_set_expand (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_expand_16 (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_expand_gray_1_2_4_to_8 (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_filler (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, int \fIflags\fP\fB);\fP
-
-\fBvoid png_set_filter (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fImethod\fP\fB, int \fIfilters\fP\fB);\fP
-
-\fBvoid png_set_filter_heuristics (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIheuristic_method\fP\fB, int \fP\fInum_weights\fP\fB, png_doublep \fP\fIfilter_weights\fP\fB, png_doublep \fIfilter_costs\fP\fB);\fP
-
-\fBvoid png_set_filter_heuristics_fixed (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIheuristic_method\fP\fB, int \fP\fInum_weights\fP\fB, png_fixed_point_p \fP\fIfilter_weights\fP\fB, png_fixed_point_p \fIfilter_costs\fP\fB);\fP
-
-\fBvoid png_set_flush (png_structp \fP\fIpng_ptr\fP\fB, int \fInrows\fP\fB);\fP
-
-\fBvoid png_set_gamma (png_structp \fP\fIpng_ptr\fP\fB, double \fP\fIscreen_gamma\fP\fB, double \fIdefault_file_gamma\fP\fB);\fP
-
-\fBvoid png_set_gamma_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIscreen_gamma\fP\fB, png_uint_32 \fIdefault_file_gamma\fP\fB);\fP
-
-\fBvoid png_set_gAMA (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fIfile_gamma\fP\fB);\fP
-
-\fBvoid png_set_gAMA_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIfile_gamma\fP\fB);\fP
-
-\fBvoid png_set_gray_1_2_4_to_8 (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_gray_to_rgb (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_eXIf (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fIexif\fP\fB);\fP
-
-\fBvoid png_set_eXIf_1 (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fInum_exif\fP\fB, png_bytep \fIexif\fP\fB);\fP
-
-\fBvoid png_set_hIST (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_16p \fIhist\fP\fB);\fP
-
-\fBvoid png_set_iCCP (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_const_charp \fP\fIname\fP\fB, int \fP\fIcompression_type\fP\fB, png_const_bytep \fP\fIprofile\fP\fB, png_uint_32 \fIproflen\fP\fB);\fP
-
-\fBint png_set_interlace_handling (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_invalid (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fImask\fP\fB);\fP
-
-\fBvoid png_set_invert_alpha (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_invert_mono (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIwidth\fP\fB, png_uint_32 \fP\fIheight\fP\fB, int \fP\fIbit_depth\fP\fB, int \fP\fIcolor_type\fP\fB, int \fP\fIinterlace_type\fP\fB, int \fP\fIcompression_type\fP\fB, int \fIfilter_type\fP\fB);\fP
-
-\fBvoid png_set_keep_unknown_chunks (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIkeep\fP\fB, png_bytep \fP\fIchunk_list\fP\fB, int \fInum_chunks\fP\fB);\fP
-
-\fBjmp_buf* png_set_longjmp_fn (png_structp \fP\fIpng_ptr\fP\fB, png_longjmp_ptr \fP\fIlongjmp_fn\fP\fB, size_t \fIjmp_buf_size\fP\fB);\fP
-
-\fBvoid png_set_chunk_malloc_max (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIuser_chunk_cache_max\fP\fB);\fP
-
-\fBvoid png_set_compression_buffer_size (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIsize\fP\fB);\fP
-
-\fBvoid png_set_mem_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP
-
-\fBvoid png_set_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIoffset_x\fP\fB, png_uint_32 \fP\fIoffset_y\fP\fB, int \fIunit_type\fP\fB);\fP
-
-\fBint png_set_option(png_structrp \fP\fIpng_ptr\fP\fB, int \fP\fIoption\fP\fB, int \fIonoff\fP\fB);\fP
-
-\fBvoid png_set_packing (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_packswap (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_palette_to_rgb (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_pCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_charp \fP\fIpurpose\fP\fB, png_int_32 \fP\fIX0\fP\fB, png_int_32 \fP\fIX1\fP\fB, int \fP\fItype\fP\fB, int \fP\fInparams\fP\fB, png_charp \fP\fIunits\fP\fB, png_charpp \fIparams\fP\fB);\fP
-
-\fBvoid png_set_pHYs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIres_x\fP\fB, png_uint_32 \fP\fIres_y\fP\fB, int \fIunit_type\fP\fB);\fP
-
-\fBvoid png_set_progressive_read_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIprogressive_ptr\fP\fB, png_progressive_info_ptr \fP\fIinfo_fn\fP\fB, png_progressive_row_ptr \fP\fIrow_fn\fP\fB, png_progressive_end_ptr \fIend_fn\fP\fB);\fP
-
-\fBvoid png_set_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, int \fInum_palette\fP\fB);\fP
-
-\fBvoid png_set_quantize (png_structp \fP\fIpng_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, int \fP\fInum_palette\fP\fB, int \fP\fImaximum_colors\fP\fB, png_uint_16p \fP\fIhistogram\fP\fB, int \fIfull_quantize\fP\fB);\fP
-
-\fBvoid png_set_read_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIio_ptr\fP\fB, png_rw_ptr \fIread_data_fn\fP\fB);\fP
-
-\fBvoid png_set_read_status_fn (png_structp \fP\fIpng_ptr\fP\fB, png_read_status_ptr \fIread_row_fn\fP\fB);\fP
-
-\fBvoid png_set_read_user_chunk_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIuser_chunk_ptr\fP\fB, png_user_chunk_ptr \fIread_user_chunk_fn\fP\fB);\fP
-
-\fBvoid png_set_read_user_transform_fn (png_structp \fP\fIpng_ptr\fP\fB, png_user_transform_ptr \fIread_user_transform_fn\fP\fB);\fP
-
-\fBvoid png_set_rgb_to_gray (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIerror_action\fP\fB, double \fP\fIred\fP\fB, double \fIgreen\fP\fB);\fP
-
-\fBvoid png_set_rgb_to_gray_fixed (png_structp \fP\fIpng_ptr\fP\fB, int error_action png_uint_32 \fP\fIred\fP\fB, png_uint_32 \fIgreen\fP\fB);\fP
-
-\fBvoid png_set_rows (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytepp \fIrow_pointers\fP\fB);\fP
-
-\fBvoid png_set_sBIT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_8p \fIsig_bit\fP\fB);\fP
-
-\fBvoid png_set_sCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIunit\fP\fB, double \fP\fIwidth\fP\fB, double \fIheight\fP\fB);\fP
-
-\fBvoid png_set_sCAL_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIunit\fP\fB, png_fixed_point \fP\fIwidth\fP\fB, png_fixed_point \fIheight\fP\fB);\fP
-
-\fBvoid png_set_sCAL_s (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIunit\fP\fB, png_charp \fP\fIwidth\fP\fB, png_charp \fIheight\fP\fB);\fP
-
-\fBvoid png_set_scale_16 (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_shift (png_structp \fP\fIpng_ptr\fP\fB, png_color_8p \fItrue_bits\fP\fB);\fP
-
-\fBvoid png_set_sig_bytes (png_structp \fP\fIpng_ptr\fP\fB, int \fInum_bytes\fP\fB);\fP
-
-\fBvoid png_set_sPLT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_spalette_p \fP\fIsplt_ptr\fP\fB, int \fInum_spalettes\fP\fB);\fP
-
-\fBvoid png_set_sRGB (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fIsrgb_intent\fP\fB);\fP
-
-\fBvoid png_set_sRGB_gAMA_and_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fIsrgb_intent\fP\fB);\fP
-
-\fBvoid png_set_strip_16 (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_strip_alpha (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_strip_error_numbers (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIstrip_mode\fP\fB);\fP
-
-\fBvoid png_set_swap (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_swap_alpha (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_set_text (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_textp \fP\fItext_ptr\fP\fB, int \fInum_text\fP\fB);\fP
-
-\fBvoid png_set_text_compression_level (png_structp \fP\fIpng_ptr\fP\fB, int \fIlevel\fP\fB);\fP
-
-\fBvoid png_set_text_compression_mem_level (png_structp \fP\fIpng_ptr\fP\fB, int \fImem_level\fP\fB);\fP
-
-\fBvoid png_set_text_compression_strategy (png_structp \fP\fIpng_ptr\fP\fB, int \fIstrategy\fP\fB);\fP
-
-\fBvoid png_set_text_compression_window_bits (png_structp \fP\fIpng_ptr\fP\fB, int \fIwindow_bits\fP\fB);\fP
-
-\fBvoid png_set_text_compression_method (png_structp \fP\fIpng_ptr\fP\fB, int \fImethod\fP\fB);\fP
-
-\fBvoid png_set_tIME (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_timep \fImod_time\fP\fB);\fP
-
-\fBvoid png_set_tRNS (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fP\fItrans_alpha\fP\fB, int \fP\fInum_trans\fP\fB, png_color_16p \fItrans_color\fP\fB);\fP
-
-\fBvoid png_set_tRNS_to_alpha (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBpng_uint_32 png_set_unknown_chunks (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_unknown_chunkp \fP\fIunknowns\fP\fB, int \fP\fInum\fP\fB, int \fIlocation\fP\fB);\fP
-
-\fBvoid png_set_unknown_chunk_location (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIchunk\fP\fB, int \fIlocation\fP\fB);\fP
-
-\fBvoid png_set_user_limits (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIuser_width_max\fP\fB, png_uint_32 \fIuser_height_max\fP\fB);\fP
-
-\fBvoid png_set_user_transform_info (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIuser_transform_ptr\fP\fB, int \fP\fIuser_transform_depth\fP\fB, int \fIuser_transform_channels\fP\fB);\fP
-
-\fBvoid png_set_write_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIio_ptr\fP\fB, png_rw_ptr \fP\fIwrite_data_fn\fP\fB, png_flush_ptr \fIoutput_flush_fn\fP\fB);\fP
-
-\fBvoid png_set_write_status_fn (png_structp \fP\fIpng_ptr\fP\fB, png_write_status_ptr \fIwrite_row_fn\fP\fB);\fP
-
-\fBvoid png_set_write_user_transform_fn (png_structp \fP\fIpng_ptr\fP\fB, png_user_transform_ptr \fIwrite_user_transform_fn\fP\fB);\fP
-
-\fBint png_sig_cmp (png_bytep \fP\fIsig\fP\fB, size_t \fP\fIstart\fP\fB, size_t \fInum_to_check\fP\fB);\fP
-
-\fBvoid png_start_read_image (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_warning (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fImessage\fP\fB);\fP
-
-\fBvoid png_write_chunk (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIchunk_name\fP\fB, png_bytep \fP\fIdata\fP\fB, size_t \fIlength\fP\fB);\fP
-
-\fBvoid png_write_chunk_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, size_t \fIlength\fP\fB);\fP
-
-\fBvoid png_write_chunk_end (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_write_chunk_start (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIchunk_name\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
-
-\fBvoid png_write_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBvoid png_write_flush (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fBvoid png_write_image (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fIimage\fP\fB);\fP
-
-\fBvoid png_write_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBvoid png_write_info_before_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
-
-\fBvoid png_write_png (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fItransforms\fP\fB, png_voidp \fIparams\fP\fB);\fP
-
-\fBvoid png_write_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIrow\fP\fB);\fP
-
-\fBvoid png_write_rows (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fP\fIrow\fP\fB, png_uint_32 \fInum_rows\fP\fB);\fP
-
-\fBvoid png_write_sig (png_structp \fIpng_ptr\fP\fB);\fP
-
-.SH DESCRIPTION
-The
-.I libpng
-library supports encoding, decoding, and various manipulations of
-the Portable Network Graphics (PNG) format image files. It uses the
-.IR zlib(3)
-compression library.
-Following is a copy of the libpng-manual.txt file that accompanies libpng.
-
-.SH LIBPNG.TXT
-libpng-manual.txt - A description on how to use and modify libpng
-
- Copyright (c) 2018-2019 Cosmin Truta
- Copyright (c) 1998-2018 Glenn Randers-Pehrson
-
- This document is released under the libpng license.
- For conditions of distribution and use, see the disclaimer
- and license in png.h
-
- Based on:
-
- libpng version 1.6.36, December 2018, through 1.6.37 - April 2019
- Updated and distributed by Cosmin Truta
- Copyright (c) 2018-2019 Cosmin Truta
-
- libpng versions 0.97, January 1998, through 1.6.35 - July 2018
- Updated and distributed by Glenn Randers-Pehrson
- Copyright (c) 1998-2018 Glenn Randers-Pehrson
-
- libpng 1.0 beta 6 - version 0.96 - May 28, 1997
- Updated and distributed by Andreas Dilger
- Copyright (c) 1996, 1997 Andreas Dilger
-
- libpng 1.0 beta 2 - version 0.88 - January 26, 1996
- For conditions of distribution and use, see copyright
- notice in png.h. Copyright (c) 1995, 1996 Guy Eric
- Schalnat, Group 42, Inc.
-
- Updated/rewritten per request in the libpng FAQ
- Copyright (c) 1995, 1996 Frank J. T. Wojcik
- December 18, 1995 & January 20, 1996
-
- TABLE OF CONTENTS
-
- I. Introduction
- II. Structures
- III. Reading
- IV. Writing
- V. Simplified API
- VI. Modifying/Customizing libpng
- VII. MNG support
- VIII. Changes to Libpng from version 0.88
- IX. Changes to Libpng from version 1.0.x to 1.2.x
- X. Changes to Libpng from version 1.0.x/1.2.x to 1.4.x
- XI. Changes to Libpng from version 1.4.x to 1.5.x
- XII. Changes to Libpng from version 1.5.x to 1.6.x
- XIII. Detecting libpng
- XIV. Source code repository
- XV. Coding style
-
-.SH I. Introduction
-
-This file describes how to use and modify the PNG reference library
-(known as libpng) for your own use. In addition to this
-file, example.c is a good starting point for using the library, as
-it is heavily commented and should include everything most people
-will need. We assume that libpng is already installed; see the
-INSTALL file for instructions on how to configure and install libpng.
-
-For examples of libpng usage, see the files "example.c", "pngtest.c",
-and the files in the "contrib" directory, all of which are included in
-the libpng distribution.
-
-Libpng was written as a companion to the PNG specification, as a way
-of reducing the amount of time and effort it takes to support the PNG
-file format in application programs.
-
-The PNG specification (second edition), November 2003, is available as
-a W3C Recommendation and as an ISO Standard (ISO/IEC 15948:2004 (E)) at
-<https://www.w3.org/TR/2003/REC-PNG-20031110/>.
-The W3C and ISO documents have identical technical content.
-
-The PNG-1.2 specification is available at
-<https://png-mng.sourceforge.io/pub/png/spec/1.2/>.
-It is technically equivalent
-to the PNG specification (second edition) but has some additional material.
-
-The PNG-1.0 specification is available as RFC 2083 at
-<https://png-mng.sourceforge.io/pub/png/spec/1.0/> and as a
-W3C Recommendation at <https://www.w3.org/TR/REC-png-961001>.
-
-Some additional chunks are described in the special-purpose public chunks
-documents at <http://www.libpng.org/pub/png/spec/register/>
-
-Other information
-about PNG, and the latest version of libpng, can be found at the PNG home
-page, <http://www.libpng.org/pub/png/>.
-
-Most users will not have to modify the library significantly; advanced
-users may want to modify it more. All attempts were made to make it as
-complete as possible, while keeping the code easy to understand.
-Currently, this library only supports C. Support for other languages
-is being considered.
-
-Libpng has been designed to handle multiple sessions at one time,
-to be easily modifiable, to be portable to the vast majority of
-machines (ANSI, K&R, 16-, 32-, and 64-bit) available, and to be easy
-to use. The ultimate goal of libpng is to promote the acceptance of
-the PNG file format in whatever way possible. While there is still
-work to be done (see the TODO file), libpng should cover the
-majority of the needs of its users.
-
-Libpng uses zlib for its compression and decompression of PNG files.
-Further information about zlib, and the latest version of zlib, can
-be found at the zlib home page, <https://zlib.net/>.
-The zlib compression utility is a general purpose utility that is
-useful for more than PNG files, and can be used without libpng.
-See the documentation delivered with zlib for more details.
-You can usually find the source files for the zlib utility wherever you
-find the libpng source files.
-
-Libpng is thread safe, provided the threads are using different
-instances of the structures. Each thread should have its own
-png_struct and png_info instances, and thus its own image.
-Libpng does not protect itself against two threads using the
-same instance of a structure.
-
-.SH II. Structures
-
-There are two main structures that are important to libpng, png_struct
-and png_info. Both are internal structures that are no longer exposed
-in the libpng interface (as of libpng 1.5.0).
-
-The png_info structure is designed to provide information about the
-PNG file. At one time, the fields of png_info were intended to be
-directly accessible to the user. However, this tended to cause problems
-with applications using dynamically loaded libraries, and as a result
-a set of interface functions for png_info (the png_get_*() and png_set_*()
-functions) was developed, and direct access to the png_info fields was
-deprecated..
-
-The png_struct structure is the object used by the library to decode a
-single image. As of 1.5.0 this structure is also not exposed.
-
-Almost all libpng APIs require a pointer to a png_struct as the first argument.
-Many (in particular the png_set and png_get APIs) also require a pointer
-to png_info as the second argument. Some application visible macros
-defined in png.h designed for basic data access (reading and writing
-integers in the PNG format) don't take a png_info pointer, but it's almost
-always safe to assume that a (png_struct*) has to be passed to call an API
-function.
-
-You can have more than one png_info structure associated with an image,
-as illustrated in pngtest.c, one for information valid prior to the
-IDAT chunks and another (called "end_info" below) for things after them.
-
-The png.h header file is an invaluable reference for programming with libpng.
-And while I'm on the topic, make sure you include the libpng header file:
-
-#include <png.h>
-
-and also (as of libpng-1.5.0) the zlib header file, if you need it:
-
-#include <zlib.h>
-
-.SS Types
-
-The png.h header file defines a number of integral types used by the
-APIs. Most of these are fairly obvious; for example types corresponding
-to integers of particular sizes and types for passing color values.
-
-One exception is how non-integral numbers are handled. For application
-convenience most APIs that take such numbers have C (double) arguments;
-however, internally PNG, and libpng, use 32 bit signed integers and encode
-the value by multiplying by 100,000. As of libpng 1.5.0 a convenience
-macro PNG_FP_1 is defined in png.h along with a type (png_fixed_point)
-which is simply (png_int_32).
-
-All APIs that take (double) arguments also have a matching API that
-takes the corresponding fixed point integer arguments. The fixed point
-API has the same name as the floating point one with "_fixed" appended.
-The actual range of values permitted in the APIs is frequently less than
-the full range of (png_fixed_point) (\-21474 to +21474). When APIs require
-a non-negative argument the type is recorded as png_uint_32 above. Consult
-the header file and the text below for more information.
-
-Special care must be take with sCAL chunk handling because the chunk itself
-uses non-integral values encoded as strings containing decimal floating point
-numbers. See the comments in the header file.
-
-.SS Configuration
-
-The main header file function declarations are frequently protected by C
-preprocessing directives of the form:
-
- #ifdef PNG_feature_SUPPORTED
- declare-function
- #endif
- ...
- #ifdef PNG_feature_SUPPORTED
- use-function
- #endif
-
-The library can be built without support for these APIs, although a
-standard build will have all implemented APIs. Application programs
-should check the feature macros before using an API for maximum
-portability. From libpng 1.5.0 the feature macros set during the build
-of libpng are recorded in the header file "pnglibconf.h" and this file
-is always included by png.h.
-
-If you don't need to change the library configuration from the default, skip to
-the next section ("Reading").
-
-Notice that some of the makefiles in the 'scripts' directory and (in 1.5.0) all
-of the build project files in the 'projects' directory simply copy
-scripts/pnglibconf.h.prebuilt to pnglibconf.h. This means that these build
-systems do not permit easy auto-configuration of the library - they only
-support the default configuration.
-
-The easiest way to make minor changes to the libpng configuration when
-auto-configuration is supported is to add definitions to the command line
-using (typically) CPPFLAGS. For example:
-
-CPPFLAGS=\-DPNG_NO_FLOATING_ARITHMETIC
-
-will change the internal libpng math implementation for gamma correction and
-other arithmetic calculations to fixed point, avoiding the need for fast
-floating point support. The result can be seen in the generated pnglibconf.h -
-make sure it contains the changed feature macro setting.
-
-If you need to make more extensive configuration changes - more than one or two
-feature macro settings - you can either add \-DPNG_USER_CONFIG to the build
-command line and put a list of feature macro settings in pngusr.h or you can set
-DFA_XTRA (a makefile variable) to a file containing the same information in the
-form of 'option' settings.
-
-A. Changing pnglibconf.h
-
-A variety of methods exist to build libpng. Not all of these support
-reconfiguration of pnglibconf.h. To reconfigure pnglibconf.h it must either be
-rebuilt from scripts/pnglibconf.dfa using awk or it must be edited by hand.
-
-Hand editing is achieved by copying scripts/pnglibconf.h.prebuilt to
-pnglibconf.h and changing the lines defining the supported features, paying
-very close attention to the 'option' information in scripts/pnglibconf.dfa
-that describes those features and their requirements. This is easy to get
-wrong.
-
-B. Configuration using DFA_XTRA
-
-Rebuilding from pnglibconf.dfa is easy if a functioning 'awk', or a later
-variant such as 'nawk' or 'gawk', is available. The configure build will
-automatically find an appropriate awk and build pnglibconf.h.
-The scripts/pnglibconf.mak file contains a set of make rules for doing the
-same thing if configure is not used, and many of the makefiles in the scripts
-directory use this approach.
-
-When rebuilding simply write a new file containing changed options and set
-DFA_XTRA to the name of this file. This causes the build to append the new file
-to the end of scripts/pnglibconf.dfa. The pngusr.dfa file should contain lines
-of the following forms:
-
-everything = off
-
-This turns all optional features off. Include it at the start of pngusr.dfa to
-make it easier to build a minimal configuration. You will need to turn at least
-some features on afterward to enable either reading or writing code, or both.
-
-option feature on
-option feature off
-
-Enable or disable a single feature. This will automatically enable other
-features required by a feature that is turned on or disable other features that
-require a feature which is turned off. Conflicting settings will cause an error
-message to be emitted by awk.
-
-setting feature default value
-
-Changes the default value of setting 'feature' to 'value'. There are a small
-number of settings listed at the top of pnglibconf.h, they are documented in the
-source code. Most of these values have performance implications for the library
-but most of them have no visible effect on the API. Some can also be overridden
-from the API.
-
-This method of building a customized pnglibconf.h is illustrated in
-contrib/pngminim/*. See the "$(PNGCONF):" target in the makefile and
-pngusr.dfa in these directories.
-
-C. Configuration using PNG_USER_CONFIG
-
-If \-DPNG_USER_CONFIG is added to the CPPFLAGS when pnglibconf.h is built,
-the file pngusr.h will automatically be included before the options in
-scripts/pnglibconf.dfa are processed. Your pngusr.h file should contain only
-macro definitions turning features on or off or setting settings.
-
-Apart from the global setting "everything = off" all the options listed above
-can be set using macros in pngusr.h:
-
-#define PNG_feature_SUPPORTED
-
-is equivalent to:
-
-option feature on
-
-#define PNG_NO_feature
-
-is equivalent to:
-
-option feature off
-
-#define PNG_feature value
-
-is equivalent to:
-
-setting feature default value
-
-Notice that in both cases, pngusr.dfa and pngusr.h, the contents of the
-pngusr file you supply override the contents of scripts/pnglibconf.dfa
-
-If confusing or incomprehensible behavior results it is possible to
-examine the intermediate file pnglibconf.dfn to find the full set of
-dependency information for each setting and option. Simply locate the
-feature in the file and read the C comments that precede it.
-
-This method is also illustrated in the contrib/pngminim/* makefiles and
-pngusr.h.
-
-.SH III. Reading
-
-We'll now walk you through the possible functions to call when reading
-in a PNG file sequentially, briefly explaining the syntax and purpose
-of each one. See example.c and png.h for more detail. While
-progressive reading is covered in the next section, you will still
-need some of the functions discussed in this section to read a PNG
-file.
-
-.SS Setup
-
-You will want to do the I/O initialization(*) before you get into libpng,
-so if it doesn't work, you don't have much to undo. Of course, you
-will also want to insure that you are, in fact, dealing with a PNG
-file. Libpng provides a simple check to see if a file is a PNG file.
-To use it, pass in the first 1 to 8 bytes of the file to the function
-png_sig_cmp(), and it will return 0 (false) if the bytes match the
-corresponding bytes of the PNG signature, or nonzero (true) otherwise.
-Of course, the more bytes you pass in, the greater the accuracy of the
-prediction.
-
-If you are intending to keep the file pointer open for use in libpng,
-you must ensure you don't read more than 8 bytes from the beginning
-of the file, and you also have to make a call to png_set_sig_bytes()
-with the number of bytes you read from the beginning. Libpng will
-then only check the bytes (if any) that your program didn't read.
-
-(*): If you are not using the standard I/O functions, you will need
-to replace them with custom functions. See the discussion under
-Customizing libpng.
-
- FILE *fp = fopen(file_name, "rb");
- if (!fp)
- {
- return ERROR;
- }
-
- if (fread(header, 1, number, fp) != number)
- {
- return ERROR;
- }
-
- is_png = !png_sig_cmp(header, 0, number);
- if (!is_png)
- {
- return NOT_PNG;
- }
-
-Next, png_struct and png_info need to be allocated and initialized. In
-order to ensure that the size of these structures is correct even with a
-dynamically linked libpng, there are functions to initialize and
-allocate the structures. We also pass the library version, optional
-pointers to error handling functions, and a pointer to a data struct for
-use by the error functions, if necessary (the pointer and functions can
-be NULL if the default error handlers are to be used). See the section
-on Changes to Libpng below regarding the old initialization functions.
-The structure allocation functions quietly return NULL if they fail to
-create the structure, so your application should check for that.
-
- png_structp png_ptr = png_create_read_struct
- (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr,
- user_error_fn, user_warning_fn);
-
- if (!png_ptr)
- return ERROR;
-
- png_infop info_ptr = png_create_info_struct(png_ptr);
-
- if (!info_ptr)
- {
- png_destroy_read_struct(&png_ptr,
- (png_infopp)NULL, (png_infopp)NULL);
- return ERROR;
- }
-
-If you want to use your own memory allocation routines,
-use a libpng that was built with PNG_USER_MEM_SUPPORTED defined, and use
-png_create_read_struct_2() instead of png_create_read_struct():
-
- png_structp png_ptr = png_create_read_struct_2
- (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr,
- user_error_fn, user_warning_fn, (png_voidp)
- user_mem_ptr, user_malloc_fn, user_free_fn);
-
-The error handling routines passed to png_create_read_struct()
-and the memory alloc/free routines passed to png_create_struct_2()
-are only necessary if you are not using the libpng supplied error
-handling and memory alloc/free functions.
-
-When libpng encounters an error, it expects to longjmp back
-to your routine. Therefore, you will need to call setjmp and pass
-your png_jmpbuf(png_ptr). If you read the file from different
-routines, you will need to update the longjmp buffer every time you enter
-a new routine that will call a png_*() function.
-
-See your documentation of setjmp/longjmp for your compiler for more
-information on setjmp/longjmp. See the discussion on libpng error
-handling in the Customizing Libpng section below for more information
-on the libpng error handling. If an error occurs, and libpng longjmp's
-back to your setjmp, you will want to call png_destroy_read_struct() to
-free any memory.
-
- if (setjmp(png_jmpbuf(png_ptr)))
- {
- png_destroy_read_struct(&png_ptr, &info_ptr,
- &end_info);
- fclose(fp);
- return ERROR;
- }
-
-Pass (png_infopp)NULL instead of &end_info if you didn't create
-an end_info structure.
-
-If you would rather avoid the complexity of setjmp/longjmp issues,
-you can compile libpng with PNG_NO_SETJMP, in which case
-errors will result in a call to PNG_ABORT() which defaults to abort().
-
-You can #define PNG_ABORT() to a function that does something
-more useful than abort(), as long as your function does not
-return.
-
-Now you need to set up the input code. The default for libpng is to
-use the C function fread(). If you use this, you will need to pass a
-valid FILE * in the function png_init_io(). Be sure that the file is
-opened in binary mode. If you wish to handle reading data in another
-way, you need not call the png_init_io() function, but you must then
-implement the libpng I/O methods discussed in the Customizing Libpng
-section below.
-
- png_init_io(png_ptr, fp);
-
-If you had previously opened the file and read any of the signature from
-the beginning in order to see if this was a PNG file, you need to let
-libpng know that there are some bytes missing from the start of the file.
-
- png_set_sig_bytes(png_ptr, number);
-
-You can change the zlib compression buffer size to be used while
-reading compressed data with
-
- png_set_compression_buffer_size(png_ptr, buffer_size);
-
-where the default size is 8192 bytes. Note that the buffer size
-is changed immediately and the buffer is reallocated immediately,
-instead of setting a flag to be acted upon later.
-
-If you want CRC errors to be handled in a different manner than
-the default, use
-
- png_set_crc_action(png_ptr, crit_action, ancil_action);
-
-The values for png_set_crc_action() say how libpng is to handle CRC errors in
-ancillary and critical chunks, and whether to use the data contained
-therein. Starting with libpng-1.6.26, this also governs how an ADLER32 error
-is handled while reading the IDAT chunk. Note that it is impossible to
-"discard" data in a critical chunk.
-
-Choices for (int) crit_action are
- PNG_CRC_DEFAULT 0 error/quit
- PNG_CRC_ERROR_QUIT 1 error/quit
- PNG_CRC_WARN_USE 3 warn/use data
- PNG_CRC_QUIET_USE 4 quiet/use data
- PNG_CRC_NO_CHANGE 5 use the current value
-
-Choices for (int) ancil_action are
- PNG_CRC_DEFAULT 0 error/quit
- PNG_CRC_ERROR_QUIT 1 error/quit
- PNG_CRC_WARN_DISCARD 2 warn/discard data
- PNG_CRC_WARN_USE 3 warn/use data
- PNG_CRC_QUIET_USE 4 quiet/use data
- PNG_CRC_NO_CHANGE 5 use the current value
-
-When the setting for crit_action is PNG_CRC_QUIET_USE, the CRC and ADLER32
-checksums are not only ignored, but they are not evaluated.
-
-.SS Setting up callback code
-
-You can set up a callback function to handle any unknown chunks in the
-input stream. You must supply the function
-
- read_chunk_callback(png_structp png_ptr,
- png_unknown_chunkp chunk);
- {
- /* The unknown chunk structure contains your
- chunk data, along with similar data for any other
- unknown chunks: */
-
- png_byte name[5];
- png_byte *data;
- size_t size;
-
- /* Note that libpng has already taken care of
- the CRC handling */
-
- /* put your code here. Search for your chunk in the
- unknown chunk structure, process it, and return one
- of the following: */
-
- return \-n; /* chunk had an error */
- return 0; /* did not recognize */
- return n; /* success */
- }
-
-(You can give your function another name that you like instead of
-"read_chunk_callback")
-
-To inform libpng about your function, use
-
- png_set_read_user_chunk_fn(png_ptr, user_chunk_ptr,
- read_chunk_callback);
-
-This names not only the callback function, but also a user pointer that
-you can retrieve with
-
- png_get_user_chunk_ptr(png_ptr);
-
-If you call the png_set_read_user_chunk_fn() function, then all unknown
-chunks which the callback does not handle will be saved when read. You can
-cause them to be discarded by returning '1' ("handled") instead of '0'. This
-behavior will change in libpng 1.7 and the default handling set by the
-png_set_keep_unknown_chunks() function, described below, will be used when the
-callback returns 0. If you want the existing behavior you should set the global
-default to PNG_HANDLE_CHUNK_IF_SAFE now; this is compatible with all current
-versions of libpng and with 1.7. Libpng 1.6 issues a warning if you keep the
-default, or PNG_HANDLE_CHUNK_NEVER, and the callback returns 0.
-
-At this point, you can set up a callback function that will be
-called after each row has been read, which you can use to control
-a progress meter or the like. It's demonstrated in pngtest.c.
-You must supply a function
-
- void read_row_callback(png_structp png_ptr,
- png_uint_32 row, int pass);
- {
- /* put your code here */
- }
-
-(You can give it another name that you like instead of "read_row_callback")
-
-To inform libpng about your function, use
-
- png_set_read_status_fn(png_ptr, read_row_callback);
-
-When this function is called the row has already been completely processed and
-the 'row' and 'pass' refer to the next row to be handled. For the
-non-interlaced case the row that was just handled is simply one less than the
-passed in row number, and pass will always be 0. For the interlaced case the
-same applies unless the row value is 0, in which case the row just handled was
-the last one from one of the preceding passes. Because interlacing may skip a
-pass you cannot be sure that the preceding pass is just 'pass\-1'; if you really
-need to know what the last pass is record (row,pass) from the callback and use
-the last recorded value each time.
-
-As with the user transform you can find the output row using the
-PNG_ROW_FROM_PASS_ROW macro.
-
-.SS Unknown-chunk handling
-
-Now you get to set the way the library processes unknown chunks in the
-input PNG stream. Both known and unknown chunks will be read. Normal
-behavior is that known chunks will be parsed into information in
-various info_ptr members while unknown chunks will be discarded. This
-behavior can be wasteful if your application will never use some known
-chunk types. To change this, you can call:
-
- png_set_keep_unknown_chunks(png_ptr, keep,
- chunk_list, num_chunks);
-
- keep - 0: default unknown chunk handling
- 1: ignore; do not keep
- 2: keep only if safe-to-copy
- 3: keep even if unsafe-to-copy
-
- You can use these definitions:
- PNG_HANDLE_CHUNK_AS_DEFAULT 0
- PNG_HANDLE_CHUNK_NEVER 1
- PNG_HANDLE_CHUNK_IF_SAFE 2
- PNG_HANDLE_CHUNK_ALWAYS 3
-
- chunk_list - list of chunks affected (a byte string,
- five bytes per chunk, NULL or '\0' if
- num_chunks is positive; ignored if
- numchunks <= 0).
-
- num_chunks - number of chunks affected; if 0, all
- unknown chunks are affected. If positive,
- only the chunks in the list are affected,
- and if negative all unknown chunks and
- all known chunks except for the IHDR,
- PLTE, tRNS, IDAT, and IEND chunks are
- affected.
-
-Unknown chunks declared in this way will be saved as raw data onto a
-list of png_unknown_chunk structures. If a chunk that is normally
-known to libpng is named in the list, it will be handled as unknown,
-according to the "keep" directive. If a chunk is named in successive
-instances of png_set_keep_unknown_chunks(), the final instance will
-take precedence. The IHDR and IEND chunks should not be named in
-chunk_list; if they are, libpng will process them normally anyway.
-If you know that your application will never make use of some particular
-chunks, use PNG_HANDLE_CHUNK_NEVER (or 1) as demonstrated below.
-
-Here is an example of the usage of png_set_keep_unknown_chunks(),
-where the private "vpAg" chunk will later be processed by a user chunk
-callback function:
-
- png_byte vpAg[5]={118, 112, 65, 103, (png_byte) '\0'};
-
- #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
- png_byte unused_chunks[]=
- {
- 104, 73, 83, 84, (png_byte) '\0', /* hIST */
- 105, 84, 88, 116, (png_byte) '\0', /* iTXt */
- 112, 67, 65, 76, (png_byte) '\0', /* pCAL */
- 115, 67, 65, 76, (png_byte) '\0', /* sCAL */
- 115, 80, 76, 84, (png_byte) '\0', /* sPLT */
- 116, 73, 77, 69, (png_byte) '\0', /* tIME */
- };
- #endif
-
- ...
-
- #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
- /* ignore all unknown chunks
- * (use global setting "2" for libpng16 and earlier):
- */
- png_set_keep_unknown_chunks(read_ptr, 2, NULL, 0);
-
- /* except for vpAg: */
- png_set_keep_unknown_chunks(read_ptr, 2, vpAg, 1);
-
- /* also ignore unused known chunks: */
- png_set_keep_unknown_chunks(read_ptr, 1, unused_chunks,
- (int)(sizeof unused_chunks)/5);
- #endif
-
-.SS User limits
-
-The PNG specification allows the width and height of an image to be as
-large as 2^(31\-1 (0x7fffffff), or about 2.147 billion rows and columns.
-For safety, libpng imposes a default limit of 1 million rows and columns.
-Larger images will be rejected immediately with a png_error() call. If
-you wish to change these limits, you can use
-
- png_set_user_limits(png_ptr, width_max, height_max);
-
-to set your own limits (libpng may reject some very wide images
-anyway because of potential buffer overflow conditions).
-
-You should put this statement after you create the PNG structure and
-before calling png_read_info(), png_read_png(), or png_process_data().
-
-When writing a PNG datastream, put this statement before calling
-png_write_info() or png_write_png().
-
-If you need to retrieve the limits that are being applied, use
-
- width_max = png_get_user_width_max(png_ptr);
- height_max = png_get_user_height_max(png_ptr);
-
-The PNG specification sets no limit on the number of ancillary chunks
-allowed in a PNG datastream. By default, libpng imposes a limit of
-a total of 1000 sPLT, tEXt, iTXt, zTXt, and unknown chunks to be stored.
-If you have set up both info_ptr and end_info_ptr, the limit applies
-separately to each. You can change the limit on the total number of such
-chunks that will be stored, with
-
- png_set_chunk_cache_max(png_ptr, user_chunk_cache_max);
-
-where 0x7fffffffL means unlimited. You can retrieve this limit with
-
- chunk_cache_max = png_get_chunk_cache_max(png_ptr);
-
-Libpng imposes a limit of 8 Megabytes (8,000,000 bytes) on the amount of
-memory that any chunk other than IDAT can occupy, originally or when
-decompressed (prior to libpng-1.6.32 the limit was only applied to compressed
-chunks after decompression). You can change this limit with
-
- png_set_chunk_malloc_max(png_ptr, user_chunk_malloc_max);
-
-and you can retrieve the limit with
-
- chunk_malloc_max = png_get_chunk_malloc_max(png_ptr);
-
-Any chunks that would cause either of these limits to be exceeded will
-be ignored.
-
-.SS Information about your system
-
-If you intend to display the PNG or to incorporate it in other image data you
-need to tell libpng information about your display or drawing surface so that
-libpng can convert the values in the image to match the display.
-
-From libpng-1.5.4 this information can be set before reading the PNG file
-header. In earlier versions png_set_gamma() existed but behaved incorrectly if
-called before the PNG file header had been read and png_set_alpha_mode() did not
-exist.
-
-If you need to support versions prior to libpng-1.5.4 test the version number
-as illustrated below using "PNG_LIBPNG_VER >= 10504" and follow the procedures
-described in the appropriate manual page.
-
-You give libpng the encoding expected by your system expressed as a 'gamma'
-value. You can also specify a default encoding for the PNG file in
-case the required information is missing from the file. By default libpng
-assumes that the PNG data matches your system, to keep this default call:
-
- png_set_gamma(png_ptr, screen_gamma, output_gamma);
-
-or you can use the fixed point equivalent:
-
- png_set_gamma_fixed(png_ptr, PNG_FP_1*screen_gamma,
- PNG_FP_1*output_gamma);
-
-If you don't know the gamma for your system it is probably 2.2 - a good
-approximation to the IEC standard for display systems (sRGB). If images are
-too contrasty or washed out you got the value wrong - check your system
-documentation!
-
-Many systems permit the system gamma to be changed via a lookup table in the
-display driver, a few systems, including older Macs, change the response by
-default. As of 1.5.4 three special values are available to handle common
-situations:
-
- PNG_DEFAULT_sRGB: Indicates that the system conforms to the
- IEC 61966-2-1 standard. This matches almost
- all systems.
- PNG_GAMMA_MAC_18: Indicates that the system is an older
- (pre Mac OS 10.6) Apple Macintosh system with
- the default settings.
- PNG_GAMMA_LINEAR: Just the fixed point value for 1.0 - indicates
- that the system expects data with no gamma
- encoding.
-
-You would use the linear (unencoded) value if you need to process the pixel
-values further because this avoids the need to decode and re-encode each
-component value whenever arithmetic is performed. A lot of graphics software
-uses linear values for this reason, often with higher precision component values
-to preserve overall accuracy.
-
-
-The output_gamma value expresses how to decode the output values, not how
-they are encoded. The values used correspond to the normal numbers used to
-describe the overall gamma of a computer display system; for example 2.2 for
-an sRGB conformant system. The values are scaled by 100000 in the _fixed
-version of the API (so 220000 for sRGB.)
-
-The inverse of the value is always used to provide a default for the PNG file
-encoding if it has no gAMA chunk and if png_set_gamma() has not been called
-to override the PNG gamma information.
-
-When the ALPHA_OPTIMIZED mode is selected the output gamma is used to encode
-opaque pixels however pixels with lower alpha values are not encoded,
-regardless of the output gamma setting.
-
-When the standard Porter Duff handling is requested with mode 1 the output
-encoding is set to be linear and the output_gamma value is only relevant
-as a default for input data that has no gamma information. The linear output
-encoding will be overridden if png_set_gamma() is called - the results may be
-highly unexpected!
-
-The following numbers are derived from the sRGB standard and the research
-behind it. sRGB is defined to be approximated by a PNG gAMA chunk value of
-0.45455 (1/2.2) for PNG. The value implicitly includes any viewing
-correction required to take account of any differences in the color
-environment of the original scene and the intended display environment; the
-value expresses how to *decode* the image for display, not how the original
-data was *encoded*.
-
-sRGB provides a peg for the PNG standard by defining a viewing environment.
-sRGB itself, and earlier TV standards, actually use a more complex transform
-(a linear portion then a gamma 2.4 power law) than PNG can express. (PNG is
-limited to simple power laws.) By saying that an image for direct display on
-an sRGB conformant system should be stored with a gAMA chunk value of 45455
-(11.3.3.2 and 11.3.3.5 of the ISO PNG specification) the PNG specification
-makes it possible to derive values for other display systems and
-environments.
-
-The Mac value is deduced from the sRGB based on an assumption that the actual
-extra viewing correction used in early Mac display systems was implemented as
-a power 1.45 lookup table.
-
-Any system where a programmable lookup table is used or where the behavior of
-the final display device characteristics can be changed requires system
-specific code to obtain the current characteristic. However this can be
-difficult and most PNG gamma correction only requires an approximate value.
-
-By default, if png_set_alpha_mode() is not called, libpng assumes that all
-values are unencoded, linear, values and that the output device also has a
-linear characteristic. This is only very rarely correct - it is invariably
-better to call png_set_alpha_mode() with PNG_DEFAULT_sRGB than rely on the
-default if you don't know what the right answer is!
-
-The special value PNG_GAMMA_MAC_18 indicates an older Mac system (pre Mac OS
-10.6) which used a correction table to implement a somewhat lower gamma on an
-otherwise sRGB system.
-
-Both these values are reserved (not simple gamma values) in order to allow
-more precise correction internally in the future.
-
-NOTE: the values can be passed to either the fixed or floating
-point APIs, but the floating point API will also accept floating point
-values.
-
-The second thing you may need to tell libpng about is how your system handles
-alpha channel information. Some, but not all, PNG files contain an alpha
-channel. To display these files correctly you need to compose the data onto a
-suitable background, as described in the PNG specification.
-
-Libpng only supports composing onto a single color (using png_set_background;
-see below). Otherwise you must do the composition yourself and, in this case,
-you may need to call png_set_alpha_mode:
-
- #if PNG_LIBPNG_VER >= 10504
- png_set_alpha_mode(png_ptr, mode, screen_gamma);
- #else
- png_set_gamma(png_ptr, screen_gamma, 1.0/screen_gamma);
- #endif
-
-The screen_gamma value is the same as the argument to png_set_gamma; however,
-how it affects the output depends on the mode. png_set_alpha_mode() sets the
-file gamma default to 1/screen_gamma, so normally you don't need to call
-png_set_gamma. If you need different defaults call png_set_gamma() before
-png_set_alpha_mode() - if you call it after it will override the settings made
-by png_set_alpha_mode().
-
-The mode is as follows:
-
- PNG_ALPHA_PNG: The data is encoded according to the PNG
-specification. Red, green and blue, or gray, components are
-gamma encoded color values and are not premultiplied by the
-alpha value. The alpha value is a linear measure of the
-contribution of the pixel to the corresponding final output pixel.
-
-You should normally use this format if you intend to perform
-color correction on the color values; most, maybe all, color
-correction software has no handling for the alpha channel and,
-anyway, the math to handle pre-multiplied component values is
-unnecessarily complex.
-
-Before you do any arithmetic on the component values you need
-to remove the gamma encoding and multiply out the alpha
-channel. See the PNG specification for more detail. It is
-important to note that when an image with an alpha channel is
-scaled, linear encoded, pre-multiplied component values must
-be used!
-
-The remaining modes assume you don't need to do any further color correction or
-that if you do, your color correction software knows all about alpha (it
-probably doesn't!). They 'associate' the alpha with the color information by
-storing color channel values that have been scaled by the alpha. The
-advantage is that the color channels can be resampled (the image can be
-scaled) in this form. The disadvantage is that normal practice is to store
-linear, not (gamma) encoded, values and this requires 16-bit channels for
-still images rather than the 8-bit channels that are just about sufficient if
-gamma encoding is used. In addition all non-transparent pixel values,
-including completely opaque ones, must be gamma encoded to produce the final
-image. These are the 'STANDARD', 'ASSOCIATED' or 'PREMULTIPLIED' modes
-described below (the latter being the two common names for associated alpha
-color channels). Note that PNG files always contain non-associated color
-channels; png_set_alpha_mode() with one of the modes causes the decoder to
-convert the pixels to an associated form before returning them to your
-application.
-
-Since it is not necessary to perform arithmetic on opaque color values so
-long as they are not to be resampled and are in the final color space it is
-possible to optimize the handling of alpha by storing the opaque pixels in
-the PNG format (adjusted for the output color space) while storing partially
-opaque pixels in the standard, linear, format. The accuracy required for
-standard alpha composition is relatively low, because the pixels are
-isolated, therefore typically the accuracy loss in storing 8-bit linear
-values is acceptable. (This is not true if the alpha channel is used to
-simulate transparency over large areas - use 16 bits or the PNG mode in
-this case!) This is the 'OPTIMIZED' mode. For this mode a pixel is
-treated as opaque only if the alpha value is equal to the maximum value.
-
- PNG_ALPHA_STANDARD: The data libpng produces is encoded in the
-standard way assumed by most correctly written graphics software.
-The gamma encoding will be removed by libpng and the
-linear component values will be pre-multiplied by the
-alpha channel.
-
-With this format the final image must be re-encoded to
-match the display gamma before the image is displayed.
-If your system doesn't do that, yet still seems to
-perform arithmetic on the pixels without decoding them,
-it is broken - check out the modes below.
-
-With PNG_ALPHA_STANDARD libpng always produces linear
-component values, whatever screen_gamma you supply. The
-screen_gamma value is, however, used as a default for
-the file gamma if the PNG file has no gamma information.
-
-If you call png_set_gamma() after png_set_alpha_mode() you
-will override the linear encoding. Instead the
-pre-multiplied pixel values will be gamma encoded but
-the alpha channel will still be linear. This may
-actually match the requirements of some broken software,
-but it is unlikely.
-
-While linear 8-bit data is often used it has
-insufficient precision for any image with a reasonable
-dynamic range. To avoid problems, and if your software
-supports it, use png_set_expand_16() to force all
-components to 16 bits.
-
- PNG_ALPHA_OPTIMIZED: This mode is the same as PNG_ALPHA_STANDARD
-except that completely opaque pixels are gamma encoded according to
-the screen_gamma value. Pixels with alpha less than 1.0
-will still have linear components.
-
-Use this format if you have control over your
-compositing software and so don't do other arithmetic
-(such as scaling) on the data you get from libpng. Your
-compositing software can simply copy opaque pixels to
-the output but still has linear values for the
-non-opaque pixels.
-
-In normal compositing, where the alpha channel encodes
-partial pixel coverage (as opposed to broad area
-translucency), the inaccuracies of the 8-bit
-representation of non-opaque pixels are irrelevant.
-
-You can also try this format if your software is broken;
-it might look better.
-
- PNG_ALPHA_BROKEN: This is PNG_ALPHA_STANDARD; however, all component
-values, including the alpha channel are gamma encoded. This is
-broken because, in practice, no implementation that uses this choice
-correctly undoes the encoding before handling alpha composition. Use this
-choice only if other serious errors in the software or hardware you use
-mandate it. In most cases of broken software or hardware the bug in the
-final display manifests as a subtle halo around composited parts of the
-image. You may not even perceive this as a halo; the composited part of
-the image may simply appear separate from the background, as though it had
-been cut out of paper and pasted on afterward.
-
-If you don't have to deal with bugs in software or hardware, or if you can fix
-them, there are three recommended ways of using png_set_alpha_mode():
-
- png_set_alpha_mode(png_ptr, PNG_ALPHA_PNG,
- screen_gamma);
-
-You can do color correction on the result (libpng does not currently
-support color correction internally). When you handle the alpha channel
-you need to undo the gamma encoding and multiply out the alpha.
-
- png_set_alpha_mode(png_ptr, PNG_ALPHA_STANDARD,
- screen_gamma);
- png_set_expand_16(png_ptr);
-
-If you are using the high level interface, don't call png_set_expand_16();
-instead pass PNG_TRANSFORM_EXPAND_16 to the interface.
-
-With this mode you can't do color correction, but you can do arithmetic,
-including composition and scaling, on the data without further processing.
-
- png_set_alpha_mode(png_ptr, PNG_ALPHA_OPTIMIZED,
- screen_gamma);
-
-You can avoid the expansion to 16-bit components with this mode, but you
-lose the ability to scale the image or perform other linear arithmetic.
-All you can do is compose the result onto a matching output. Since this
-mode is libpng-specific you also need to write your own composition
-software.
-
-The following are examples of calls to png_set_alpha_mode to achieve the
-required overall gamma correction and, where necessary, alpha
-premultiplication.
-
- png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB);
-
-Choices for the alpha_mode are
-
- PNG_ALPHA_PNG 0 /* according to the PNG standard */
- PNG_ALPHA_STANDARD 1 /* according to Porter/Duff */
- PNG_ALPHA_ASSOCIATED 1 /* as above; this is the normal practice */
- PNG_ALPHA_PREMULTIPLIED 1 /* as above */
- PNG_ALPHA_OPTIMIZED 2 /* 'PNG' for opaque pixels, else 'STANDARD' */
- PNG_ALPHA_BROKEN 3 /* the alpha channel is gamma encoded */
-
-PNG_ALPHA_PNG is the default libpng handling of the alpha channel. It is not
-pre-multiplied into the color components. In addition the call states
-that the output is for a sRGB system and causes all PNG files without gAMA
-chunks to be assumed to be encoded using sRGB.
-
- png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC);
-
-In this case the output is assumed to be something like an sRGB conformant
-display preceded by a power-law lookup table of power 1.45. This is how
-early Mac systems behaved.
-
- png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_GAMMA_LINEAR);
-
-This is the classic Jim Blinn approach and will work in academic
-environments where everything is done by the book. It has the shortcoming
-of assuming that input PNG data with no gamma information is linear - this
-is unlikely to be correct unless the PNG files were generated locally.
-Most of the time the output precision will be so low as to show
-significant banding in dark areas of the image.
-
- png_set_expand_16(pp);
- png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_DEFAULT_sRGB);
-
-This is a somewhat more realistic Jim Blinn inspired approach. PNG files
-are assumed to have the sRGB encoding if not marked with a gamma value and
-the output is always 16 bits per component. This permits accurate scaling
-and processing of the data. If you know that your input PNG files were
-generated locally you might need to replace PNG_DEFAULT_sRGB with the
-correct value for your system.
-
- png_set_alpha_mode(pp, PNG_ALPHA_OPTIMIZED, PNG_DEFAULT_sRGB);
-
-If you just need to composite the PNG image onto an existing background
-and if you control the code that does this you can use the optimization
-setting. In this case you just copy completely opaque pixels to the
-output. For pixels that are not completely transparent (you just skip
-those) you do the composition math using png_composite or png_composite_16
-below then encode the resultant 8-bit or 16-bit values to match the output
-encoding.
-
- Other cases
-
-If neither the PNG nor the standard linear encoding work for you because
-of the software or hardware you use then you have a big problem. The PNG
-case will probably result in halos around the image. The linear encoding
-will probably result in a washed out, too bright, image (it's actually too
-contrasty.) Try the ALPHA_OPTIMIZED mode above - this will probably
-substantially reduce the halos. Alternatively try:
-
- png_set_alpha_mode(pp, PNG_ALPHA_BROKEN, PNG_DEFAULT_sRGB);
-
-This option will also reduce the halos, but there will be slight dark
-halos round the opaque parts of the image where the background is light.
-In the OPTIMIZED mode the halos will be light halos where the background
-is dark. Take your pick - the halos are unavoidable unless you can get
-your hardware/software fixed! (The OPTIMIZED approach is slightly
-faster.)
-
-When the default gamma of PNG files doesn't match the output gamma.
-If you have PNG files with no gamma information png_set_alpha_mode allows
-you to provide a default gamma, but it also sets the output gamma to the
-matching value. If you know your PNG files have a gamma that doesn't
-match the output you can take advantage of the fact that
-png_set_alpha_mode always sets the output gamma but only sets the PNG
-default if it is not already set:
-
- png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB);
- png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC);
-
-The first call sets both the default and the output gamma values, the
-second call overrides the output gamma without changing the default. This
-is easier than achieving the same effect with png_set_gamma. You must use
-PNG_ALPHA_PNG for the first call - internal checking in png_set_alpha will
-fire if more than one call to png_set_alpha_mode and png_set_background is
-made in the same read operation, however multiple calls with PNG_ALPHA_PNG
-are ignored.
-
-If you don't need, or can't handle, the alpha channel you can call
-png_set_background() to remove it by compositing against a fixed color. Don't
-call png_set_strip_alpha() to do this - it will leave spurious pixel values in
-transparent parts of this image.
-
- png_set_background(png_ptr, &background_color,
- PNG_BACKGROUND_GAMMA_SCREEN, 0, 1);
-
-The background_color is an RGB or grayscale value according to the data format
-libpng will produce for you. Because you don't yet know the format of the PNG
-file, if you call png_set_background at this point you must arrange for the
-format produced by libpng to always have 8-bit or 16-bit components and then
-store the color as an 8-bit or 16-bit color as appropriate. The color contains
-separate gray and RGB component values, so you can let libpng produce gray or
-RGB output according to the input format, but low bit depth grayscale images
-must always be converted to at least 8-bit format. (Even though low bit depth
-grayscale images can't have an alpha channel they can have a transparent
-color!)
-
-You set the transforms you need later, either as flags to the high level
-interface or libpng API calls for the low level interface. For reference the
-settings and API calls required are:
-
-8-bit values:
- PNG_TRANSFORM_SCALE_16 | PNG_EXPAND
- png_set_expand(png_ptr); png_set_scale_16(png_ptr);
-
- If you must get exactly the same inaccurate results
- produced by default in versions prior to libpng-1.5.4,
- use PNG_TRANSFORM_STRIP_16 and png_set_strip_16(png_ptr)
- instead.
-
-16-bit values:
- PNG_TRANSFORM_EXPAND_16
- png_set_expand_16(png_ptr);
-
-In either case palette image data will be expanded to RGB. If you just want
-color data you can add PNG_TRANSFORM_GRAY_TO_RGB or png_set_gray_to_rgb(png_ptr)
-to the list.
-
-Calling png_set_background before the PNG file header is read will not work
-prior to libpng-1.5.4. Because the failure may result in unexpected warnings or
-errors it is therefore much safer to call png_set_background after the head has
-been read. Unfortunately this means that prior to libpng-1.5.4 it cannot be
-used with the high level interface.
-
-.SS The high-level read interface
-
-At this point there are two ways to proceed; through the high-level
-read interface, or through a sequence of low-level read operations.
-You can use the high-level interface if (a) you are willing to read
-the entire image into memory, and (b) the input transformations
-you want to do are limited to the following set:
-
- PNG_TRANSFORM_IDENTITY No transformation
- PNG_TRANSFORM_SCALE_16 Strip 16-bit samples to
- 8-bit accurately
- PNG_TRANSFORM_STRIP_16 Chop 16-bit samples to
- 8-bit less accurately
- PNG_TRANSFORM_STRIP_ALPHA Discard the alpha channel
- PNG_TRANSFORM_PACKING Expand 1, 2 and 4-bit
- samples to bytes
- PNG_TRANSFORM_PACKSWAP Change order of packed
- pixels to LSB first
- PNG_TRANSFORM_EXPAND Perform set_expand()
- PNG_TRANSFORM_INVERT_MONO Invert monochrome images
- PNG_TRANSFORM_SHIFT Normalize pixels to the
- sBIT depth
- PNG_TRANSFORM_BGR Flip RGB to BGR, RGBA
- to BGRA
- PNG_TRANSFORM_SWAP_ALPHA Flip RGBA to ARGB or GA
- to AG
- PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity
- to transparency
- PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples
- PNG_TRANSFORM_GRAY_TO_RGB Expand grayscale samples
- to RGB (or GA to RGBA)
- PNG_TRANSFORM_EXPAND_16 Expand samples to 16 bits
-
-(This excludes setting a background color, doing gamma transformation,
-quantizing, and setting filler.) If this is the case, simply do this:
-
- png_read_png(png_ptr, info_ptr, png_transforms, NULL)
-
-where png_transforms is an integer containing the bitwise OR of some
-set of transformation flags. This call is equivalent to png_read_info(),
-followed the set of transformations indicated by the transform mask,
-then png_read_image(), and finally png_read_end().
-
-(The final parameter of this call is not yet used. Someday it might point
-to transformation parameters required by some future input transform.)
-
-You must use png_transforms and not call any png_set_transform() functions
-when you use png_read_png().
-
-After you have called png_read_png(), you can retrieve the image data
-with
-
- row_pointers = png_get_rows(png_ptr, info_ptr);
-
-where row_pointers is an array of pointers to the pixel data for each row:
-
- png_bytep row_pointers[height];
-
-If you know your image size and pixel size ahead of time, you can allocate
-row_pointers prior to calling png_read_png() with
-
- if (height > PNG_UINT_32_MAX/(sizeof (png_byte)))
- png_error (png_ptr,
- "Image is too tall to process in memory");
-
- if (width > PNG_UINT_32_MAX/pixel_size)
- png_error (png_ptr,
- "Image is too wide to process in memory");
-
- row_pointers = png_malloc(png_ptr,
- height*(sizeof (png_bytep)));
-
- for (int i=0; i<height, i++)
- row_pointers[i]=NULL; /* security precaution */
-
- for (int i=0; i<height, i++)
- row_pointers[i]=png_malloc(png_ptr,
- width*pixel_size);
-
- png_set_rows(png_ptr, info_ptr, &row_pointers);
-
-Alternatively you could allocate your image in one big block and define
-row_pointers[i] to point into the proper places in your block, but first
-be sure that your platform is able to allocate such a large buffer:
-
- /* Guard against integer overflow */
- if (height > PNG_SIZE_MAX/(width*pixel_size)) {
- png_error(png_ptr,"image_data buffer would be too large");
- }
-
- png_bytep buffer=png_malloc(png_ptr,height*width*pixel_size);
-
- for (int i=0; i<height, i++)
- row_pointers[i]=buffer+i*width*pixel_size;
-
- png_set_rows(png_ptr, info_ptr, &row_pointers);
-
-If you use png_set_rows(), the application is responsible for freeing
-row_pointers (and row_pointers[i], if they were separately allocated).
-
-If you don't allocate row_pointers ahead of time, png_read_png() will
-do it, and it'll be free'ed by libpng when you call png_destroy_*().
-
-.SS The low-level read interface
-
-If you are going the low-level route, you are now ready to read all
-the file information up to the actual image data. You do this with a
-call to png_read_info().
-
- png_read_info(png_ptr, info_ptr);
-
-This will process all chunks up to but not including the image data.
-
-This also copies some of the data from the PNG file into the decode structure
-for use in later transformations. Important information copied in is:
-
-1) The PNG file gamma from the gAMA chunk. This overwrites the default value
-provided by an earlier call to png_set_gamma or png_set_alpha_mode.
-
-2) Prior to libpng-1.5.4 the background color from a bKGd chunk. This
-damages the information provided by an earlier call to png_set_background
-resulting in unexpected behavior. Libpng-1.5.4 no longer does this.
-
-3) The number of significant bits in each component value. Libpng uses this to
-optimize gamma handling by reducing the internal lookup table sizes.
-
-4) The transparent color information from a tRNS chunk. This can be modified by
-a later call to png_set_tRNS.
-
-.SS Querying the info structure
-
-Functions are used to get the information from the info_ptr once it
-has been read. Note that these fields may not be completely filled
-in until png_read_end() has read the chunk data following the image.
-
- png_get_IHDR(png_ptr, info_ptr, &width, &height,
- &bit_depth, &color_type, &interlace_type,
- &compression_type, &filter_method);
-
- width - holds the width of the image
- in pixels (up to 2^31).
-
- height - holds the height of the image
- in pixels (up to 2^31).
-
- bit_depth - holds the bit depth of one of the
- image channels. (valid values are
- 1, 2, 4, 8, 16 and depend also on
- the color_type. See also
- significant bits (sBIT) below).
-
- color_type - describes which color/alpha channels
- are present.
- PNG_COLOR_TYPE_GRAY
- (bit depths 1, 2, 4, 8, 16)
- PNG_COLOR_TYPE_GRAY_ALPHA
- (bit depths 8, 16)
- PNG_COLOR_TYPE_PALETTE
- (bit depths 1, 2, 4, 8)
- PNG_COLOR_TYPE_RGB
- (bit_depths 8, 16)
- PNG_COLOR_TYPE_RGB_ALPHA
- (bit_depths 8, 16)
-
- PNG_COLOR_MASK_PALETTE
- PNG_COLOR_MASK_COLOR
- PNG_COLOR_MASK_ALPHA
-
- interlace_type - (PNG_INTERLACE_NONE or
- PNG_INTERLACE_ADAM7)
-
- compression_type - (must be PNG_COMPRESSION_TYPE_BASE
- for PNG 1.0)
-
- filter_method - (must be PNG_FILTER_TYPE_BASE
- for PNG 1.0, and can also be
- PNG_INTRAPIXEL_DIFFERENCING if
- the PNG datastream is embedded in
- a MNG-1.0 datastream)
-
- Any of width, height, color_type, bit_depth,
- interlace_type, compression_type, or filter_method can
- be NULL if you are not interested in their values.
-
- Note that png_get_IHDR() returns 32-bit data into
- the application's width and height variables.
- This is an unsafe situation if these are not png_uint_32
- variables. In such situations, the
- png_get_image_width() and png_get_image_height()
- functions described below are safer.
-
- width = png_get_image_width(png_ptr,
- info_ptr);
-
- height = png_get_image_height(png_ptr,
- info_ptr);
-
- bit_depth = png_get_bit_depth(png_ptr,
- info_ptr);
-
- color_type = png_get_color_type(png_ptr,
- info_ptr);
-
- interlace_type = png_get_interlace_type(png_ptr,
- info_ptr);
-
- compression_type = png_get_compression_type(png_ptr,
- info_ptr);
-
- filter_method = png_get_filter_type(png_ptr,
- info_ptr);
-
- channels = png_get_channels(png_ptr, info_ptr);
-
- channels - number of channels of info for the
- color type (valid values are 1 (GRAY,
- PALETTE), 2 (GRAY_ALPHA), 3 (RGB),
- 4 (RGB_ALPHA or RGB + filler byte))
-
- rowbytes = png_get_rowbytes(png_ptr, info_ptr);
-
- rowbytes - number of bytes needed to hold a row
- This value, the bit_depth, color_type,
- and the number of channels can change
- if you use transforms such as
- png_set_expand(). See
- png_read_update_info(), below.
-
- signature = png_get_signature(png_ptr, info_ptr);
-
- signature - holds the signature read from the
- file (if any). The data is kept in
- the same offset it would be if the
- whole signature were read (i.e. if an
- application had already read in 4
- bytes of signature before starting
- libpng, the remaining 4 bytes would
- be in signature[4] through signature[7]
- (see png_set_sig_bytes())).
-
-These are also important, but their validity depends on whether the chunk
-has been read. The png_get_valid(png_ptr, info_ptr, PNG_INFO_<chunk>) and
-png_get_<chunk>(png_ptr, info_ptr, ...) functions return non-zero if the
-data has been read, or zero if it is missing. The parameters to the
-png_get_<chunk> are set directly if they are simple data types, or a
-pointer into the info_ptr is returned for any complex types.
-
-The colorspace data from gAMA, cHRM, sRGB, iCCP, and sBIT chunks
-is simply returned to give the application information about how the
-image was encoded. Libpng itself only does transformations using the file
-gamma when combining semitransparent pixels with the background color, and,
-since libpng-1.6.0, when converting between 8-bit sRGB and 16-bit linear pixels
-within the simplified API. Libpng also uses the file gamma when converting
-RGB to gray, beginning with libpng-1.0.5, if the application calls
-png_set_rgb_to_gray()).
-
- png_get_PLTE(png_ptr, info_ptr, &palette,
- &num_palette);
-
- palette - the palette for the file
- (array of png_color)
-
- num_palette - number of entries in the palette
-
- png_get_gAMA(png_ptr, info_ptr, &file_gamma);
- png_get_gAMA_fixed(png_ptr, info_ptr, &int_file_gamma);
-
- file_gamma - the gamma at which the file is
- written (PNG_INFO_gAMA)
-
- int_file_gamma - 100,000 times the gamma at which the
- file is written
-
- png_get_cHRM(png_ptr, info_ptr, &white_x, &white_y, &red_x,
- &red_y, &green_x, &green_y, &blue_x, &blue_y)
- png_get_cHRM_XYZ(png_ptr, info_ptr, &red_X, &red_Y, &red_Z,
- &green_X, &green_Y, &green_Z, &blue_X, &blue_Y,
- &blue_Z)
- png_get_cHRM_fixed(png_ptr, info_ptr, &int_white_x,
- &int_white_y, &int_red_x, &int_red_y,
- &int_green_x, &int_green_y, &int_blue_x,
- &int_blue_y)
- png_get_cHRM_XYZ_fixed(png_ptr, info_ptr, &int_red_X, &int_red_Y,
- &int_red_Z, &int_green_X, &int_green_Y,
- &int_green_Z, &int_blue_X, &int_blue_Y,
- &int_blue_Z)
-
- {white,red,green,blue}_{x,y}
- A color space encoding specified using the
- chromaticities of the end points and the
- white point. (PNG_INFO_cHRM)
-
- {red,green,blue}_{X,Y,Z}
- A color space encoding specified using the
- encoding end points - the CIE tristimulus
- specification of the intended color of the red,
- green and blue channels in the PNG RGB data.
- The white point is simply the sum of the three
- end points. (PNG_INFO_cHRM)
-
- png_get_sRGB(png_ptr, info_ptr, &srgb_intent);
-
- srgb_intent - the rendering intent (PNG_INFO_sRGB)
- The presence of the sRGB chunk
- means that the pixel data is in the
- sRGB color space. This chunk also
- implies specific values of gAMA and
- cHRM.
-
- png_get_iCCP(png_ptr, info_ptr, &name,
- &compression_type, &profile, &proflen);
-
- name - The profile name.
-
- compression_type - The compression type; always
- PNG_COMPRESSION_TYPE_BASE for PNG 1.0.
- You may give NULL to this argument to
- ignore it.
-
- profile - International Color Consortium color
- profile data. May contain NULs.
-
- proflen - length of profile data in bytes.
-
- png_get_sBIT(png_ptr, info_ptr, &sig_bit);
-
- sig_bit - the number of significant bits for
- (PNG_INFO_sBIT) each of the gray,
- red, green, and blue channels,
- whichever are appropriate for the
- given color type (png_color_16)
-
- png_get_tRNS(png_ptr, info_ptr, &trans_alpha,
- &num_trans, &trans_color);
-
- trans_alpha - array of alpha (transparency)
- entries for palette (PNG_INFO_tRNS)
-
- num_trans - number of transparent entries
- (PNG_INFO_tRNS)
-
- trans_color - graylevel or color sample values of
- the single transparent color for
- non-paletted images (PNG_INFO_tRNS)
-
- png_get_eXIf_1(png_ptr, info_ptr, &num_exif, &exif);
- (PNG_INFO_eXIf)
-
- exif - Exif profile (array of png_byte)
-
- png_get_hIST(png_ptr, info_ptr, &hist);
- (PNG_INFO_hIST)
-
- hist - histogram of palette (array of
- png_uint_16)
-
- png_get_tIME(png_ptr, info_ptr, &mod_time);
-
- mod_time - time image was last modified
- (PNG_VALID_tIME)
-
- png_get_bKGD(png_ptr, info_ptr, &background);
-
- background - background color (of type
- png_color_16p) (PNG_VALID_bKGD)
- valid 16-bit red, green and blue
- values, regardless of color_type
-
- num_comments = png_get_text(png_ptr, info_ptr,
- &text_ptr, &num_text);
-
- num_comments - number of comments
-
- text_ptr - array of png_text holding image
- comments
-
- text_ptr[i].compression - type of compression used
- on "text" PNG_TEXT_COMPRESSION_NONE
- PNG_TEXT_COMPRESSION_zTXt
- PNG_ITXT_COMPRESSION_NONE
- PNG_ITXT_COMPRESSION_zTXt
-
- text_ptr[i].key - keyword for comment. Must contain
- 1-79 characters.
-
- text_ptr[i].text - text comments for current
- keyword. Can be empty.
-
- text_ptr[i].text_length - length of text string,
- after decompression, 0 for iTXt
-
- text_ptr[i].itxt_length - length of itxt string,
- after decompression, 0 for tEXt/zTXt
-
- text_ptr[i].lang - language of comment (empty
- string for unknown).
-
- text_ptr[i].lang_key - keyword in UTF-8
- (empty string for unknown).
-
- Note that the itxt_length, lang, and lang_key
- members of the text_ptr structure only exist when the
- library is built with iTXt chunk support. Prior to
- libpng-1.4.0 the library was built by default without
- iTXt support. Also note that when iTXt is supported,
- they contain NULL pointers when the "compression"
- field contains PNG_TEXT_COMPRESSION_NONE or
- PNG_TEXT_COMPRESSION_zTXt.
-
- num_text - number of comments (same as
- num_comments; you can put NULL here
- to avoid the duplication)
-
- Note while png_set_text() will accept text, language,
- and translated keywords that can be NULL pointers, the
- structure returned by png_get_text will always contain
- regular zero-terminated C strings. They might be
- empty strings but they will never be NULL pointers.
-
- num_spalettes = png_get_sPLT(png_ptr, info_ptr,
- &palette_ptr);
-
- num_spalettes - number of sPLT chunks read.
-
- palette_ptr - array of palette structures holding
- contents of one or more sPLT chunks
- read.
-
- png_get_oFFs(png_ptr, info_ptr, &offset_x, &offset_y,
- &unit_type);
-
- offset_x - positive offset from the left edge
- of the screen (can be negative)
-
- offset_y - positive offset from the top edge
- of the screen (can be negative)
-
- unit_type - PNG_OFFSET_PIXEL, PNG_OFFSET_MICROMETER
-
- png_get_pHYs(png_ptr, info_ptr, &res_x, &res_y,
- &unit_type);
-
- res_x - pixels/unit physical resolution in
- x direction
-
- res_y - pixels/unit physical resolution in
- x direction
-
- unit_type - PNG_RESOLUTION_UNKNOWN,
- PNG_RESOLUTION_METER
-
- png_get_sCAL(png_ptr, info_ptr, &unit, &width,
- &height)
-
- unit - physical scale units (an integer)
-
- width - width of a pixel in physical scale units
-
- height - height of a pixel in physical scale units
- (width and height are doubles)
-
- png_get_sCAL_s(png_ptr, info_ptr, &unit, &width,
- &height)
-
- unit - physical scale units (an integer)
-
- width - width of a pixel in physical scale units
- (expressed as a string)
-
- height - height of a pixel in physical scale units
- (width and height are strings like "2.54")
-
- num_unknown_chunks = png_get_unknown_chunks(png_ptr,
- info_ptr, &unknowns)
-
- unknowns - array of png_unknown_chunk
- structures holding unknown chunks
-
- unknowns[i].name - name of unknown chunk
-
- unknowns[i].data - data of unknown chunk
-
- unknowns[i].size - size of unknown chunk's data
-
- unknowns[i].location - position of chunk in file
-
- The value of "i" corresponds to the order in which the
- chunks were read from the PNG file or inserted with the
- png_set_unknown_chunks() function.
-
- The value of "location" is a bitwise "or" of
-
- PNG_HAVE_IHDR (0x01)
- PNG_HAVE_PLTE (0x02)
- PNG_AFTER_IDAT (0x08)
-
-The data from the pHYs chunk can be retrieved in several convenient
-forms:
-
- res_x = png_get_x_pixels_per_meter(png_ptr,
- info_ptr)
-
- res_y = png_get_y_pixels_per_meter(png_ptr,
- info_ptr)
-
- res_x_and_y = png_get_pixels_per_meter(png_ptr,
- info_ptr)
-
- res_x = png_get_x_pixels_per_inch(png_ptr,
- info_ptr)
-
- res_y = png_get_y_pixels_per_inch(png_ptr,
- info_ptr)
-
- res_x_and_y = png_get_pixels_per_inch(png_ptr,
- info_ptr)
-
- aspect_ratio = png_get_pixel_aspect_ratio(png_ptr,
- info_ptr)
-
- Each of these returns 0 [signifying "unknown"] if
- the data is not present or if res_x is 0;
- res_x_and_y is 0 if res_x != res_y
-
- Note that because of the way the resolutions are
- stored internally, the inch conversions won't
- come out to exactly even number. For example,
- 72 dpi is stored as 0.28346 pixels/meter, and
- when this is retrieved it is 71.9988 dpi, so
- be sure to round the returned value appropriately
- if you want to display a reasonable-looking result.
-
-The data from the oFFs chunk can be retrieved in several convenient
-forms:
-
- x_offset = png_get_x_offset_microns(png_ptr, info_ptr);
-
- y_offset = png_get_y_offset_microns(png_ptr, info_ptr);
-
- x_offset = png_get_x_offset_inches(png_ptr, info_ptr);
-
- y_offset = png_get_y_offset_inches(png_ptr, info_ptr);
-
- Each of these returns 0 [signifying "unknown" if both
- x and y are 0] if the data is not present or if the
- chunk is present but the unit is the pixel. The
- remark about inexact inch conversions applies here
- as well, because a value in inches can't always be
- converted to microns and back without some loss
- of precision.
-
-For more information, see the
-PNG specification for chunk contents. Be careful with trusting
-rowbytes, as some of the transformations could increase the space
-needed to hold a row (expand, filler, gray_to_rgb, etc.).
-See png_read_update_info(), below.
-
-A quick word about text_ptr and num_text. PNG stores comments in
-keyword/text pairs, one pair per chunk, with no limit on the number
-of text chunks, and a 2^31 byte limit on their size. While there are
-suggested keywords, there is no requirement to restrict the use to these
-strings. It is strongly suggested that keywords and text be sensible
-to humans (that's the point), so don't use abbreviations. Non-printing
-symbols are not allowed. See the PNG specification for more details.
-There is also no requirement to have text after the keyword.
-
-Keywords should be limited to 79 Latin-1 characters without leading or
-trailing spaces, but non-consecutive spaces are allowed within the
-keyword. It is possible to have the same keyword any number of times.
-The text_ptr is an array of png_text structures, each holding a
-pointer to a language string, a pointer to a keyword and a pointer to
-a text string. The text string, language code, and translated
-keyword may be empty or NULL pointers. The keyword/text
-pairs are put into the array in the order that they are received.
-However, some or all of the text chunks may be after the image, so, to
-make sure you have read all the text chunks, don't mess with these
-until after you read the stuff after the image. This will be
-mentioned again below in the discussion that goes with png_read_end().
-
-.SS Input transformations
-
-After you've read the header information, you can set up the library
-to handle any special transformations of the image data. The various
-ways to transform the data will be described in the order that they
-should occur. This is important, as some of these change the color
-type and/or bit depth of the data, and some others only work on
-certain color types and bit depths.
-
-Transformations you request are ignored if they don't have any meaning for a
-particular input data format. However some transformations can have an effect
-as a result of a previous transformation. If you specify a contradictory set of
-transformations, for example both adding and removing the alpha channel, you
-cannot predict the final result.
-
-The color used for the transparency values should be supplied in the same
-format/depth as the current image data. It is stored in the same format/depth
-as the image data in a tRNS chunk, so this is what libpng expects for this data.
-
-The color used for the background value depends on the need_expand argument as
-described below.
-
-Data will be decoded into the supplied row buffers packed into bytes
-unless the library has been told to transform it into another format.
-For example, 4 bit/pixel paletted or grayscale data will be returned
-2 pixels/byte with the leftmost pixel in the high-order bits of the byte,
-unless png_set_packing() is called. 8-bit RGB data will be stored
-in RGB RGB RGB format unless png_set_filler() or png_set_add_alpha()
-is called to insert filler bytes, either before or after each RGB triplet.
-
-16-bit RGB data will be returned RRGGBB RRGGBB, with the most significant
-byte of the color value first, unless png_set_scale_16() is called to
-transform it to regular RGB RGB triplets, or png_set_filler() or
-png_set_add alpha() is called to insert two filler bytes, either before
-or after each RRGGBB triplet. Similarly, 8-bit or 16-bit grayscale data can
-be modified with png_set_filler(), png_set_add_alpha(), png_set_strip_16(),
-or png_set_scale_16().
-
-The following code transforms grayscale images of less than 8 to 8 bits,
-changes paletted images to RGB, and adds a full alpha channel if there is
-transparency information in a tRNS chunk. This is most useful on
-grayscale images with bit depths of 2 or 4 or if there is a multiple-image
-viewing application that wishes to treat all images in the same way.
-
- if (color_type == PNG_COLOR_TYPE_PALETTE)
- png_set_palette_to_rgb(png_ptr);
-
- if (png_get_valid(png_ptr, info_ptr,
- PNG_INFO_tRNS)) png_set_tRNS_to_alpha(png_ptr);
-
- if (color_type == PNG_COLOR_TYPE_GRAY &&
- bit_depth < 8) png_set_expand_gray_1_2_4_to_8(png_ptr);
-
-The first two functions are actually aliases for png_set_expand(), added
-in libpng version 1.0.4, with the function names expanded to improve code
-readability. In some future version they may actually do different
-things.
-
-As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was
-added. It expands the sample depth without changing tRNS to alpha.
-
-As of libpng version 1.5.2, png_set_expand_16() was added. It behaves as
-png_set_expand(); however, the resultant channels have 16 bits rather than 8.
-Use this when the output color or gray channels are made linear to avoid fairly
-severe accuracy loss.
-
- if (bit_depth < 16)
- png_set_expand_16(png_ptr);
-
-PNG can have files with 16 bits per channel. If you only can handle
-8 bits per channel, this will strip the pixels down to 8-bit.
-
- if (bit_depth == 16)
-#if PNG_LIBPNG_VER >= 10504
- png_set_scale_16(png_ptr);
-#else
- png_set_strip_16(png_ptr);
-#endif
-
-(The more accurate "png_set_scale_16()" API became available in libpng version
-1.5.4).
-
-If you need to process the alpha channel on the image separately from the image
-data (for example if you convert it to a bitmap mask) it is possible to have
-libpng strip the channel leaving just RGB or gray data:
-
- if (color_type & PNG_COLOR_MASK_ALPHA)
- png_set_strip_alpha(png_ptr);
-
-If you strip the alpha channel you need to find some other way of dealing with
-the information. If, instead, you want to convert the image to an opaque
-version with no alpha channel use png_set_background; see below.
-
-As of libpng version 1.5.2, almost all useful expansions are supported, the
-major ommissions are conversion of grayscale to indexed images (which can be
-done trivially in the application) and conversion of indexed to grayscale (which
-can be done by a trivial manipulation of the palette.)
-
-In the following table, the 01 means grayscale with depth<8, 31 means
-indexed with depth<8, other numerals represent the color type, "T" means
-the tRNS chunk is present, A means an alpha channel is present, and O
-means tRNS or alpha is present but all pixels in the image are opaque.
-
- FROM 01 31 0 0T 0O 2 2T 2O 3 3T 3O 4A 4O 6A 6O
- TO
- 01 - [G] - - - - - - - - - - - - -
- 31 [Q] Q [Q] [Q] [Q] Q Q Q Q Q Q [Q] [Q] Q Q
- 0 1 G + . . G G G G G G B B GB GB
- 0T lt Gt t + . Gt G G Gt G G Bt Bt GBt GBt
- 0O lt Gt t . + Gt Gt G Gt Gt G Bt Bt GBt GBt
- 2 C P C C C + . . C - - CB CB B B
- 2T Ct - Ct C C t + t - - - CBt CBt Bt Bt
- 2O Ct - Ct C C t t + - - - CBt CBt Bt Bt
- 3 [Q] p [Q] [Q] [Q] Q Q Q + . . [Q] [Q] Q Q
- 3T [Qt] p [Qt][Q] [Q] Qt Qt Qt t + t [Qt][Qt] Qt Qt
- 3O [Qt] p [Qt][Q] [Q] Qt Qt Qt t t + [Qt][Qt] Qt Qt
- 4A lA G A T T GA GT GT GA GT GT + BA G GBA
- 4O lA GBA A T T GA GT GT GA GT GT BA + GBA G
- 6A CA PA CA C C A T tT PA P P C CBA + BA
- 6O CA PBA CA C C A tT T PA P P CBA C BA +
-
-Within the matrix,
- "+" identifies entries where 'from' and 'to' are the same.
- "-" means the transformation is not supported.
- "." means nothing is necessary (a tRNS chunk can just be ignored).
- "t" means the transformation is obtained by png_set_tRNS.
- "A" means the transformation is obtained by png_set_add_alpha().
- "X" means the transformation is obtained by png_set_expand().
- "1" means the transformation is obtained by
- png_set_expand_gray_1_2_4_to_8() (and by png_set_expand()
- if there is no transparency in the original or the final
- format).
- "C" means the transformation is obtained by png_set_gray_to_rgb().
- "G" means the transformation is obtained by png_set_rgb_to_gray().
- "P" means the transformation is obtained by
- png_set_expand_palette_to_rgb().
- "p" means the transformation is obtained by png_set_packing().
- "Q" means the transformation is obtained by png_set_quantize().
- "T" means the transformation is obtained by
- png_set_tRNS_to_alpha().
- "B" means the transformation is obtained by
- png_set_background(), or png_strip_alpha().
-
-When an entry has multiple transforms listed all are required to cause the
-right overall transformation. When two transforms are separated by a comma
-either will do the job. When transforms are enclosed in [] the transform should
-do the job but this is currently unimplemented - a different format will result
-if the suggested transformations are used.
-
-In PNG files, the alpha channel in an image
-is the level of opacity. If you need the alpha channel in an image to
-be the level of transparency instead of opacity, you can invert the
-alpha channel (or the tRNS chunk data) after it's read, so that 0 is
-fully opaque and 255 (in 8-bit or paletted images) or 65535 (in 16-bit
-images) is fully transparent, with
-
- png_set_invert_alpha(png_ptr);
-
-PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as
-they can, resulting in, for example, 8 pixels per byte for 1 bit
-files. This code expands to 1 pixel per byte without changing the
-values of the pixels:
-
- if (bit_depth < 8)
- png_set_packing(png_ptr);
-
-PNG files have possible bit depths of 1, 2, 4, 8, and 16. All pixels
-stored in a PNG image have been "scaled" or "shifted" up to the next
-higher possible bit depth (e.g. from 5 bits/sample in the range [0,31]
-to 8 bits/sample in the range [0, 255]). However, it is also possible
-to convert the PNG pixel data back to the original bit depth of the
-image. This call reduces the pixels back down to the original bit depth:
-
- png_color_8p sig_bit;
-
- if (png_get_sBIT(png_ptr, info_ptr, &sig_bit))
- png_set_shift(png_ptr, sig_bit);
-
-PNG files store 3-color pixels in red, green, blue order. This code
-changes the storage of the pixels to blue, green, red:
-
- if (color_type == PNG_COLOR_TYPE_RGB ||
- color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- png_set_bgr(png_ptr);
-
-PNG files store RGB pixels packed into 3 or 6 bytes. This code expands them
-into 4 or 8 bytes for windowing systems that need them in this format:
-
- if (color_type == PNG_COLOR_TYPE_RGB)
- png_set_filler(png_ptr, filler, PNG_FILLER_BEFORE);
-
-where "filler" is the 8-bit or 16-bit number to fill with, and the location
-is either PNG_FILLER_BEFORE or PNG_FILLER_AFTER, depending upon whether
-you want the filler before the RGB or after. When filling an 8-bit pixel,
-the least significant 8 bits of the number are used, if a 16-bit number is
-supplied. This transformation does not affect images that already have full
-alpha channels. To add an opaque alpha channel, use filler=0xffff and
-PNG_FILLER_AFTER which will generate RGBA pixels.
-
-Note that png_set_filler() does not change the color type. If you want
-to do that, you can add a true alpha channel with
-
- if (color_type == PNG_COLOR_TYPE_RGB ||
- color_type == PNG_COLOR_TYPE_GRAY)
- png_set_add_alpha(png_ptr, filler, PNG_FILLER_AFTER);
-
-where "filler" contains the alpha value to assign to each pixel.
-The png_set_add_alpha() function was added in libpng-1.2.7.
-
-If you are reading an image with an alpha channel, and you need the
-data as ARGB instead of the normal PNG format RGBA:
-
- if (color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- png_set_swap_alpha(png_ptr);
-
-For some uses, you may want a grayscale image to be represented as
-RGB. This code will do that conversion:
-
- if (color_type == PNG_COLOR_TYPE_GRAY ||
- color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- png_set_gray_to_rgb(png_ptr);
-
-Conversely, you can convert an RGB or RGBA image to grayscale or grayscale
-with alpha.
-
- if (color_type == PNG_COLOR_TYPE_RGB ||
- color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- png_set_rgb_to_gray(png_ptr, error_action,
- double red_weight, double green_weight);
-
- error_action = 1: silently do the conversion
-
- error_action = 2: issue a warning if the original
- image has any pixel where
- red != green or red != blue
-
- error_action = 3: issue an error and abort the
- conversion if the original
- image has any pixel where
- red != green or red != blue
-
- red_weight: weight of red component
-
- green_weight: weight of green component
- If either weight is negative, default
- weights are used.
-
-In the corresponding fixed point API the red_weight and green_weight values are
-simply scaled by 100,000:
-
- png_set_rgb_to_gray(png_ptr, error_action,
- png_fixed_point red_weight,
- png_fixed_point green_weight);
-
-If you have set error_action = 1 or 2, you can
-later check whether the image really was gray, after processing
-the image rows, with the png_get_rgb_to_gray_status(png_ptr) function.
-It will return a png_byte that is zero if the image was gray or
-1 if there were any non-gray pixels. Background and sBIT data
-will be silently converted to grayscale, using the green channel
-data for sBIT, regardless of the error_action setting.
-
-The default values come from the PNG file cHRM chunk if present; otherwise, the
-defaults correspond to the ITU-R recommendation 709, and also the sRGB color
-space, as recommended in the Charles Poynton's Colour FAQ,
-Copyright (c) 2006-11-28 Charles Poynton, in section 9:
-
-<http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html#RTFToC9>
-
- Y = 0.2126 * R + 0.7152 * G + 0.0722 * B
-
-Previous versions of this document, 1998 through 2002, recommended a slightly
-different formula:
-
- Y = 0.212671 * R + 0.715160 * G + 0.072169 * B
-
-Libpng uses an integer approximation:
-
- Y = (6968 * R + 23434 * G + 2366 * B)/32768
-
-The calculation is done in a linear colorspace, if the image gamma
-can be determined.
-
-The png_set_background() function has been described already; it tells libpng to
-composite images with alpha or simple transparency against the supplied
-background color. For compatibility with versions of libpng earlier than
-libpng-1.5.4 it is recommended that you call the function after reading the file
-header, even if you don't want to use the color in a bKGD chunk, if one exists.
-
-If the PNG file contains a bKGD chunk (PNG_INFO_bKGD valid),
-you may use this color, or supply another color more suitable for
-the current display (e.g., the background color from a web page). You
-need to tell libpng how the color is represented, both the format of the
-component values in the color (the number of bits) and the gamma encoding of the
-color. The function takes two arguments, background_gamma_mode and need_expand
-to convey this information; however, only two combinations are likely to be
-useful:
-
- png_color_16 my_background;
- png_color_16p image_background;
-
- if (png_get_bKGD(png_ptr, info_ptr, &image_background))
- png_set_background(png_ptr, image_background,
- PNG_BACKGROUND_GAMMA_FILE, 1/*needs to be expanded*/, 1);
- else
- png_set_background(png_ptr, &my_background,
- PNG_BACKGROUND_GAMMA_SCREEN, 0/*do not expand*/, 1);
-
-The second call was described above - my_background is in the format of the
-final, display, output produced by libpng. Because you now know the format of
-the PNG it is possible to avoid the need to choose either 8-bit or 16-bit
-output and to retain palette images (the palette colors will be modified
-appropriately and the tRNS chunk removed.) However, if you are doing this,
-take great care not to ask for transformations without checking first that
-they apply!
-
-In the first call the background color has the original bit depth and color type
-of the PNG file. So, for palette images the color is supplied as a palette
-index and for low bit greyscale images the color is a reduced bit value in
-image_background->gray.
-
-If you didn't call png_set_gamma() before reading the file header, for example
-if you need your code to remain compatible with older versions of libpng prior
-to libpng-1.5.4, this is the place to call it.
-
-Do not call it if you called png_set_alpha_mode(); doing so will damage the
-settings put in place by png_set_alpha_mode(). (If png_set_alpha_mode() is
-supported then you can certainly do png_set_gamma() before reading the PNG
-header.)
-
-This API unconditionally sets the screen and file gamma values, so it will
-override the value in the PNG file unless it is called before the PNG file
-reading starts. For this reason you must always call it with the PNG file
-value when you call it in this position:
-
- if (png_get_gAMA(png_ptr, info_ptr, &file_gamma))
- png_set_gamma(png_ptr, screen_gamma, file_gamma);
-
- else
- png_set_gamma(png_ptr, screen_gamma, 0.45455);
-
-If you need to reduce an RGB file to a paletted file, or if a paletted
-file has more entries than will fit on your screen, png_set_quantize()
-will do that. Note that this is a simple match quantization that merely
-finds the closest color available. This should work fairly well with
-optimized palettes, but fairly badly with linear color cubes. If you
-pass a palette that is larger than maximum_colors, the file will
-reduce the number of colors in the palette so it will fit into
-maximum_colors. If there is a histogram, libpng will use it to make
-more intelligent choices when reducing the palette. If there is no
-histogram, it may not do as good a job.
-
- if (color_type & PNG_COLOR_MASK_COLOR)
- {
- if (png_get_valid(png_ptr, info_ptr,
- PNG_INFO_PLTE))
- {
- png_uint_16p histogram = NULL;
-
- png_get_hIST(png_ptr, info_ptr,
- &histogram);
- png_set_quantize(png_ptr, palette, num_palette,
- max_screen_colors, histogram, 1);
- }
-
- else
- {
- png_color std_color_cube[MAX_SCREEN_COLORS] =
- { ... colors ... };
-
- png_set_quantize(png_ptr, std_color_cube,
- MAX_SCREEN_COLORS, MAX_SCREEN_COLORS,
- NULL,0);
- }
- }
-
-PNG files describe monochrome as black being zero and white being one.
-The following code will reverse this (make black be one and white be
-zero):
-
- if (bit_depth == 1 && color_type == PNG_COLOR_TYPE_GRAY)
- png_set_invert_mono(png_ptr);
-
-This function can also be used to invert grayscale and gray-alpha images:
-
- if (color_type == PNG_COLOR_TYPE_GRAY ||
- color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- png_set_invert_mono(png_ptr);
-
-PNG files store 16-bit pixels in network byte order (big-endian,
-ie. most significant bits first). This code changes the storage to the
-other way (little-endian, i.e. least significant bits first, the
-way PCs store them):
-
- if (bit_depth == 16)
- png_set_swap(png_ptr);
-
-If you are using packed-pixel images (1, 2, or 4 bits/pixel), and you
-need to change the order the pixels are packed into bytes, you can use:
-
- if (bit_depth < 8)
- png_set_packswap(png_ptr);
-
-Finally, you can write your own transformation function if none of
-the existing ones meets your needs. This is done by setting a callback
-with
-
- png_set_read_user_transform_fn(png_ptr,
- read_transform_fn);
-
-You must supply the function
-
- void read_transform_fn(png_structp png_ptr, png_row_infop
- row_info, png_bytep data)
-
-See pngtest.c for a working example. Your function will be called
-after all of the other transformations have been processed. Take care with
-interlaced images if you do the interlace yourself - the width of the row is the
-width in 'row_info', not the overall image width.
-
-If supported, libpng provides two information routines that you can use to find
-where you are in processing the image:
-
- png_get_current_pass_number(png_structp png_ptr);
- png_get_current_row_number(png_structp png_ptr);
-
-Don't try using these outside a transform callback - firstly they are only
-supported if user transforms are supported, secondly they may well return
-unexpected results unless the row is actually being processed at the moment they
-are called.
-
-With interlaced
-images the value returned is the row in the input sub-image image. Use
-PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to
-find the output pixel (x,y) given an interlaced sub-image pixel (row,col,pass).
-
-The discussion of interlace handling above contains more information on how to
-use these values.
-
-You can also set up a pointer to a user structure for use by your
-callback function, and you can inform libpng that your transform
-function will change the number of channels or bit depth with the
-function
-
- png_set_user_transform_info(png_ptr, user_ptr,
- user_depth, user_channels);
-
-The user's application, not libpng, is responsible for allocating and
-freeing any memory required for the user structure.
-
-You can retrieve the pointer via the function
-png_get_user_transform_ptr(). For example:
-
- voidp read_user_transform_ptr =
- png_get_user_transform_ptr(png_ptr);
-
-The last thing to handle is interlacing; this is covered in detail below,
-but you must call the function here if you want libpng to handle expansion
-of the interlaced image.
-
- number_of_passes = png_set_interlace_handling(png_ptr);
-
-After setting the transformations, libpng can update your png_info
-structure to reflect any transformations you've requested with this
-call.
-
- png_read_update_info(png_ptr, info_ptr);
-
-This is most useful to update the info structure's rowbytes
-field so you can use it to allocate your image memory. This function
-will also update your palette with the correct screen_gamma and
-background if these have been given with the calls above. You may
-only call png_read_update_info() once with a particular info_ptr.
-
-After you call png_read_update_info(), you can allocate any
-memory you need to hold the image. The row data is simply
-raw byte data for all forms of images. As the actual allocation
-varies among applications, no example will be given. If you
-are allocating one large chunk, you will need to build an
-array of pointers to each row, as it will be needed for some
-of the functions below.
-
-Be sure that your platform can allocate the buffer that you'll need.
-libpng internally checks for oversize width, but you'll need to
-do your own check for number_of_rows*width*pixel_size if you are using
-a multiple-row buffer:
-
- /* Guard against integer overflow */
- if (number_of_rows > PNG_SIZE_MAX/(width*pixel_size)) {
- png_error(png_ptr,"image_data buffer would be too large");
- }
-
-Remember: Before you call png_read_update_info(), the png_get_*()
-functions return the values corresponding to the original PNG image.
-After you call png_read_update_info the values refer to the image
-that libpng will output. Consequently you must call all the png_set_
-functions before you call png_read_update_info(). This is particularly
-important for png_set_interlace_handling() - if you are going to call
-png_read_update_info() you must call png_set_interlace_handling() before
-it unless you want to receive interlaced output.
-
-.SS Reading image data
-
-After you've allocated memory, you can read the image data.
-The simplest way to do this is in one function call. If you are
-allocating enough memory to hold the whole image, you can just
-call png_read_image() and libpng will read in all the image data
-and put it in the memory area supplied. You will need to pass in
-an array of pointers to each row.
-
-This function automatically handles interlacing, so you don't
-need to call png_set_interlace_handling() (unless you call
-png_read_update_info()) or call this function multiple times, or any
-of that other stuff necessary with png_read_rows().
-
- png_read_image(png_ptr, row_pointers);
-
-where row_pointers is:
-
- png_bytep row_pointers[height];
-
-You can point to void or char or whatever you use for pixels.
-
-If you don't want to read in the whole image at once, you can
-use png_read_rows() instead. If there is no interlacing (check
-interlace_type == PNG_INTERLACE_NONE), this is simple:
-
- png_read_rows(png_ptr, row_pointers, NULL,
- number_of_rows);
-
-where row_pointers is the same as in the png_read_image() call.
-
-If you are doing this just one row at a time, you can do this with
-a single row_pointer instead of an array of row_pointers:
-
- png_bytep row_pointer = row;
- png_read_row(png_ptr, row_pointer, NULL);
-
-If the file is interlaced (interlace_type != 0 in the IHDR chunk), things
-get somewhat harder. The only current (PNG Specification version 1.2)
-interlacing type for PNG is (interlace_type == PNG_INTERLACE_ADAM7);
-a somewhat complicated 2D interlace scheme, known as Adam7, that
-breaks down an image into seven smaller images of varying size, based
-on an 8x8 grid. This number is defined (from libpng 1.5) as
-PNG_INTERLACE_ADAM7_PASSES in png.h
-
-libpng can fill out those images or it can give them to you "as is".
-It is almost always better to have libpng handle the interlacing for you.
-If you want the images filled out, there are two ways to do that. The one
-mentioned in the PNG specification is to expand each pixel to cover
-those pixels that have not been read yet (the "rectangle" method).
-This results in a blocky image for the first pass, which gradually
-smooths out as more pixels are read. The other method is the "sparkle"
-method, where pixels are drawn only in their final locations, with the
-rest of the image remaining whatever colors they were initialized to
-before the start of the read. The first method usually looks better,
-but tends to be slower, as there are more pixels to put in the rows.
-
-If, as is likely, you want libpng to expand the images, call this before
-calling png_start_read_image() or png_read_update_info():
-
- if (interlace_type == PNG_INTERLACE_ADAM7)
- number_of_passes
- = png_set_interlace_handling(png_ptr);
-
-This will return the number of passes needed. Currently, this is seven,
-but may change if another interlace type is added. This function can be
-called even if the file is not interlaced, where it will return one pass.
-You then need to read the whole image 'number_of_passes' times. Each time
-will distribute the pixels from the current pass to the correct place in
-the output image, so you need to supply the same rows to png_read_rows in
-each pass.
-
-If you are not going to display the image after each pass, but are
-going to wait until the entire image is read in, use the sparkle
-effect. This effect is faster and the end result of either method
-is exactly the same. If you are planning on displaying the image
-after each pass, the "rectangle" effect is generally considered the
-better looking one.
-
-If you only want the "sparkle" effect, just call png_read_row() or
-png_read_rows() as
-normal, with the third parameter NULL. Make sure you make pass over
-the image number_of_passes times, and you don't change the data in the
-rows between calls. You can change the locations of the data, just
-not the data. Each pass only writes the pixels appropriate for that
-pass, and assumes the data from previous passes is still valid.
-
- png_read_rows(png_ptr, row_pointers, NULL,
- number_of_rows);
- or
- png_read_row(png_ptr, row_pointers, NULL);
-
-If you only want the first effect (the rectangles), do the same as
-before except pass the row buffer in the third parameter, and leave
-the second parameter NULL.
-
- png_read_rows(png_ptr, NULL, row_pointers,
- number_of_rows);
- or
- png_read_row(png_ptr, NULL, row_pointers);
-
-If you don't want libpng to handle the interlacing details, just call
-png_read_rows() PNG_INTERLACE_ADAM7_PASSES times to read in all the images.
-Each of the images is a valid image by itself; however, you will almost
-certainly need to distribute the pixels from each sub-image to the
-correct place. This is where everything gets very tricky.
-
-If you want to retrieve the separate images you must pass the correct
-number of rows to each successive call of png_read_rows(). The calculation
-gets pretty complicated for small images, where some sub-images may
-not even exist because either their width or height ends up zero.
-libpng provides two macros to help you in 1.5 and later versions:
-
- png_uint_32 width = PNG_PASS_COLS(image_width, pass_number);
- png_uint_32 height = PNG_PASS_ROWS(image_height, pass_number);
-
-Respectively these tell you the width and height of the sub-image
-corresponding to the numbered pass. 'pass' is in in the range 0 to 6 -
-this can be confusing because the specification refers to the same passes
-as 1 to 7! Be careful, you must check both the width and height before
-calling png_read_rows() and not call it for that pass if either is zero.
-
-You can, of course, read each sub-image row by row. If you want to
-produce optimal code to make a pixel-by-pixel transformation of an
-interlaced image this is the best approach; read each row of each pass,
-transform it, and write it out to a new interlaced image.
-
-If you want to de-interlace the image yourself libpng provides further
-macros to help that tell you where to place the pixels in the output image.
-Because the interlacing scheme is rectangular - sub-image pixels are always
-arranged on a rectangular grid - all you need to know for each pass is the
-starting column and row in the output image of the first pixel plus the
-spacing between each pixel. As of libpng 1.5 there are four macros to
-retrieve this information:
-
- png_uint_32 x = PNG_PASS_START_COL(pass);
- png_uint_32 y = PNG_PASS_START_ROW(pass);
- png_uint_32 xStep = 1U << PNG_PASS_COL_SHIFT(pass);
- png_uint_32 yStep = 1U << PNG_PASS_ROW_SHIFT(pass);
-
-These allow you to write the obvious loop:
-
- png_uint_32 input_y = 0;
- png_uint_32 output_y = PNG_PASS_START_ROW(pass);
-
- while (output_y < output_image_height)
- {
- png_uint_32 input_x = 0;
- png_uint_32 output_x = PNG_PASS_START_COL(pass);
-
- while (output_x < output_image_width)
- {
- image[output_y][output_x] =
- subimage[pass][input_y][input_x++];
-
- output_x += xStep;
- }
-
- ++input_y;
- output_y += yStep;
- }
-
-Notice that the steps between successive output rows and columns are
-returned as shifts. This is possible because the pixels in the subimages
-are always a power of 2 apart - 1, 2, 4 or 8 pixels - in the original
-image. In practice you may need to directly calculate the output coordinate
-given an input coordinate. libpng provides two further macros for this
-purpose:
-
- png_uint_32 output_x = PNG_COL_FROM_PASS_COL(input_x, pass);
- png_uint_32 output_y = PNG_ROW_FROM_PASS_ROW(input_y, pass);
-
-Finally a pair of macros are provided to tell you if a particular image
-row or column appears in a given pass:
-
- int col_in_pass = PNG_COL_IN_INTERLACE_PASS(output_x, pass);
- int row_in_pass = PNG_ROW_IN_INTERLACE_PASS(output_y, pass);
-
-Bear in mind that you will probably also need to check the width and height
-of the pass in addition to the above to be sure the pass even exists!
-
-With any luck you are convinced by now that you don't want to do your own
-interlace handling. In reality normally the only good reason for doing this
-is if you are processing PNG files on a pixel-by-pixel basis and don't want
-to load the whole file into memory when it is interlaced.
-
-libpng includes a test program, pngvalid, that illustrates reading and
-writing of interlaced images. If you can't get interlacing to work in your
-code and don't want to leave it to libpng (the recommended approach), see
-how pngvalid.c does it.
-
-.SS Finishing a sequential read
-
-After you are finished reading the image through the
-low-level interface, you can finish reading the file.
-
-If you want to use a different crc action for handling CRC errors in
-chunks after the image data, you can call png_set_crc_action()
-again at this point.
-
-If you are interested in comments or time, which may be stored either
-before or after the image data, you should pass the separate png_info
-struct if you want to keep the comments from before and after the image
-separate.
-
- png_infop end_info = png_create_info_struct(png_ptr);
-
- if (!end_info)
- {
- png_destroy_read_struct(&png_ptr, &info_ptr,
- (png_infopp)NULL);
- return ERROR;
- }
-
- png_read_end(png_ptr, end_info);
-
-If you are not interested, you should still call png_read_end()
-but you can pass NULL, avoiding the need to create an end_info structure.
-If you do this, libpng will not process any chunks after IDAT other than
-skipping over them and perhaps (depending on whether you have called
-png_set_crc_action) checking their CRCs while looking for the IEND chunk.
-
- png_read_end(png_ptr, (png_infop)NULL);
-
-If you don't call png_read_end(), then your file pointer will be
-left pointing to the first chunk after the last IDAT, which is probably
-not what you want if you expect to read something beyond the end of
-the PNG datastream.
-
-When you are done, you can free all memory allocated by libpng like this:
-
- png_destroy_read_struct(&png_ptr, &info_ptr,
- &end_info);
-
-or, if you didn't create an end_info structure,
-
- png_destroy_read_struct(&png_ptr, &info_ptr,
- (png_infopp)NULL);
-
-It is also possible to individually free the info_ptr members that
-point to libpng-allocated storage with the following function:
-
- png_free_data(png_ptr, info_ptr, mask, seq)
-
- mask - identifies data to be freed, a mask
- containing the bitwise OR of one or
- more of
- PNG_FREE_PLTE, PNG_FREE_TRNS,
- PNG_FREE_HIST, PNG_FREE_ICCP,
- PNG_FREE_PCAL, PNG_FREE_ROWS,
- PNG_FREE_SCAL, PNG_FREE_SPLT,
- PNG_FREE_TEXT, PNG_FREE_UNKN,
- or simply PNG_FREE_ALL
-
- seq - sequence number of item to be freed
- (\-1 for all items)
-
-This function may be safely called when the relevant storage has
-already been freed, or has not yet been allocated, or was allocated
-by the user and not by libpng, and will in those cases do nothing.
-The "seq" parameter is ignored if only one item of the selected data
-type, such as PLTE, is allowed. If "seq" is not \-1, and multiple items
-are allowed for the data type identified in the mask, such as text or
-sPLT, only the n'th item in the structure is freed, where n is "seq".
-
-The default behavior is only to free data that was allocated internally
-by libpng. This can be changed, so that libpng will not free the data,
-or so that it will free data that was allocated by the user with png_malloc()
-or png_calloc() and passed in via a png_set_*() function, with
-
- png_data_freer(png_ptr, info_ptr, freer, mask)
-
- freer - one of
- PNG_DESTROY_WILL_FREE_DATA
- PNG_SET_WILL_FREE_DATA
- PNG_USER_WILL_FREE_DATA
-
- mask - which data elements are affected
- same choices as in png_free_data()
-
-This function only affects data that has already been allocated.
-You can call this function after reading the PNG data but before calling
-any png_set_*() functions, to control whether the user or the png_set_*()
-function is responsible for freeing any existing data that might be present,
-and again after the png_set_*() functions to control whether the user
-or png_destroy_*() is supposed to free the data. When the user assumes
-responsibility for libpng-allocated data, the application must use
-png_free() to free it, and when the user transfers responsibility to libpng
-for data that the user has allocated, the user must have used png_malloc()
-or png_calloc() to allocate it.
-
-If you allocated your row_pointers in a single block, as suggested above in
-the description of the high level read interface, you must not transfer
-responsibility for freeing it to the png_set_rows or png_read_destroy function,
-because they would also try to free the individual row_pointers[i].
-
-If you allocated text_ptr.text, text_ptr.lang, and text_ptr.translated_keyword
-separately, do not transfer responsibility for freeing text_ptr to libpng,
-because when libpng fills a png_text structure it combines these members with
-the key member, and png_free_data() will free only text_ptr.key. Similarly,
-if you transfer responsibility for free'ing text_ptr from libpng to your
-application, your application must not separately free those members.
-
-The png_free_data() function will turn off the "valid" flag for anything
-it frees. If you need to turn the flag off for a chunk that was freed by
-your application instead of by libpng, you can use
-
- png_set_invalid(png_ptr, info_ptr, mask);
-
- mask - identifies the chunks to be made invalid,
- containing the bitwise OR of one or
- more of
- PNG_INFO_gAMA, PNG_INFO_sBIT,
- PNG_INFO_cHRM, PNG_INFO_PLTE,
- PNG_INFO_tRNS, PNG_INFO_bKGD,
- PNG_INFO_eXIf,
- PNG_INFO_hIST, PNG_INFO_pHYs,
- PNG_INFO_oFFs, PNG_INFO_tIME,
- PNG_INFO_pCAL, PNG_INFO_sRGB,
- PNG_INFO_iCCP, PNG_INFO_sPLT,
- PNG_INFO_sCAL, PNG_INFO_IDAT
-
-For a more compact example of reading a PNG image, see the file example.c.
-
-.SS Reading PNG files progressively
-
-The progressive reader is slightly different from the non-progressive
-reader. Instead of calling png_read_info(), png_read_rows(), and
-png_read_end(), you make one call to png_process_data(), which calls
-callbacks when it has the info, a row, or the end of the image. You
-set up these callbacks with png_set_progressive_read_fn(). You don't
-have to worry about the input/output functions of libpng, as you are
-giving the library the data directly in png_process_data(). I will
-assume that you have read the section on reading PNG files above,
-so I will only highlight the differences (although I will show
-all of the code).
-
-png_structp png_ptr;
-png_infop info_ptr;
-
- /* An example code fragment of how you would
- initialize the progressive reader in your
- application. */
- int
- initialize_png_reader()
- {
- png_ptr = png_create_read_struct
- (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr,
- user_error_fn, user_warning_fn);
-
- if (!png_ptr)
- return ERROR;
-
- info_ptr = png_create_info_struct(png_ptr);
-
- if (!info_ptr)
- {
- png_destroy_read_struct(&png_ptr,
- (png_infopp)NULL, (png_infopp)NULL);
- return ERROR;
- }
-
- if (setjmp(png_jmpbuf(png_ptr)))
- {
- png_destroy_read_struct(&png_ptr, &info_ptr,
- (png_infopp)NULL);
- return ERROR;
- }
-
- /* This one's new. You can provide functions
- to be called when the header info is valid,
- when each row is completed, and when the image
- is finished. If you aren't using all functions,
- you can specify NULL parameters. Even when all
- three functions are NULL, you need to call
- png_set_progressive_read_fn(). You can use
- any struct as the user_ptr (cast to a void pointer
- for the function call), and retrieve the pointer
- from inside the callbacks using the function
-
- png_get_progressive_ptr(png_ptr);
-
- which will return a void pointer, which you have
- to cast appropriately.
- */
- png_set_progressive_read_fn(png_ptr, (void *)user_ptr,
- info_callback, row_callback, end_callback);
-
- return 0;
- }
-
- /* A code fragment that you call as you receive blocks
- of data */
- int
- process_data(png_bytep buffer, png_uint_32 length)
- {
- if (setjmp(png_jmpbuf(png_ptr)))
- {
- png_destroy_read_struct(&png_ptr, &info_ptr,
- (png_infopp)NULL);
- return ERROR;
- }
-
- /* This one's new also. Simply give it a chunk
- of data from the file stream (in order, of
- course). On machines with segmented memory
- models machines, don't give it any more than
- 64K. The library seems to run fine with sizes
- of 4K. Although you can give it much less if
- necessary (I assume you can give it chunks of
- 1 byte, I haven't tried less than 256 bytes
- yet). When this function returns, you may
- want to display any rows that were generated
- in the row callback if you don't already do
- so there.
- */
- png_process_data(png_ptr, info_ptr, buffer, length);
-
- /* At this point you can call png_process_data_skip if
- you want to handle data the library will skip yourself;
- it simply returns the number of bytes to skip (and stops
- libpng skipping that number of bytes on the next
- png_process_data call).
- return 0;
- }
-
- /* This function is called (as set by
- png_set_progressive_read_fn() above) when enough data
- has been supplied so all of the header has been
- read.
- */
- void
- info_callback(png_structp png_ptr, png_infop info)
- {
- /* Do any setup here, including setting any of
- the transformations mentioned in the Reading
- PNG files section. For now, you _must_ call
- either png_start_read_image() or
- png_read_update_info() after all the
- transformations are set (even if you don't set
- any). You may start getting rows before
- png_process_data() returns, so this is your
- last chance to prepare for that.
-
- This is where you turn on interlace handling,
- assuming you don't want to do it yourself.
-
- If you need to you can stop the processing of
- your original input data at this point by calling
- png_process_data_pause. This returns the number
- of unprocessed bytes from the last png_process_data
- call - it is up to you to ensure that the next call
- sees these bytes again. If you don't want to bother
- with this you can get libpng to cache the unread
- bytes by setting the 'save' parameter (see png.h) but
- then libpng will have to copy the data internally.
- */
- }
-
- /* This function is called when each row of image
- data is complete */
- void
- row_callback(png_structp png_ptr, png_bytep new_row,
- png_uint_32 row_num, int pass)
- {
- /* If the image is interlaced, and you turned
- on the interlace handler, this function will
- be called for every row in every pass. Some
- of these rows will not be changed from the
- previous pass. When the row is not changed,
- the new_row variable will be NULL. The rows
- and passes are called in order, so you don't
- really need the row_num and pass, but I'm
- supplying them because it may make your life
- easier.
-
- If you did not turn on interlace handling then
- the callback is called for each row of each
- sub-image when the image is interlaced. In this
- case 'row_num' is the row in the sub-image, not
- the row in the output image as it is in all other
- cases.
-
- For the non-NULL rows of interlaced images when
- you have switched on libpng interlace handling,
- you must call png_progressive_combine_row()
- passing in the row and the old row. You can
- call this function for NULL rows (it will just
- return) and for non-interlaced images (it just
- does the memcpy for you) if it will make the
- code easier. Thus, you can just do this for
- all cases if you switch on interlace handling;
- */
-
- png_progressive_combine_row(png_ptr, old_row,
- new_row);
-
- /* where old_row is what was displayed
- previously for the row. Note that the first
- pass (pass == 0, really) will completely cover
- the old row, so the rows do not have to be
- initialized. After the first pass (and only
- for interlaced images), you will have to pass
- the current row, and the function will combine
- the old row and the new row.
-
- You can also call png_process_data_pause in this
- callback - see above.
- */
- }
-
- void
- end_callback(png_structp png_ptr, png_infop info)
- {
- /* This function is called after the whole image
- has been read, including any chunks after the
- image (up to and including the IEND). You
- will usually have the same info chunk as you
- had in the header, although some data may have
- been added to the comments and time fields.
-
- Most people won't do much here, perhaps setting
- a flag that marks the image as finished.
- */
- }
-
-
-
-.SH IV. Writing
-
-Much of this is very similar to reading. However, everything of
-importance is repeated here, so you won't have to constantly look
-back up in the reading section to understand writing.
-
-.SS Setup
-
-You will want to do the I/O initialization before you get into libpng,
-so if it doesn't work, you don't have anything to undo. If you are not
-using the standard I/O functions, you will need to replace them with
-custom writing functions. See the discussion under Customizing libpng.
-
- FILE *fp = fopen(file_name, "wb");
-
- if (!fp)
- return ERROR;
-
-Next, png_struct and png_info need to be allocated and initialized.
-As these can be both relatively large, you may not want to store these
-on the stack, unless you have stack space to spare. Of course, you
-will want to check if they return NULL. If you are also reading,
-you won't want to name your read structure and your write structure
-both "png_ptr"; you can call them anything you like, such as
-"read_ptr" and "write_ptr". Look at pngtest.c, for example.
-
- png_structp png_ptr = png_create_write_struct
- (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr,
- user_error_fn, user_warning_fn);
-
- if (!png_ptr)
- return ERROR;
-
- png_infop info_ptr = png_create_info_struct(png_ptr);
- if (!info_ptr)
- {
- png_destroy_write_struct(&png_ptr,
- (png_infopp)NULL);
- return ERROR;
- }
-
-If you want to use your own memory allocation routines,
-define PNG_USER_MEM_SUPPORTED and use
-png_create_write_struct_2() instead of png_create_write_struct():
-
- png_structp png_ptr = png_create_write_struct_2
- (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr,
- user_error_fn, user_warning_fn, (png_voidp)
- user_mem_ptr, user_malloc_fn, user_free_fn);
-
-After you have these structures, you will need to set up the
-error handling. When libpng encounters an error, it expects to
-longjmp() back to your routine. Therefore, you will need to call
-setjmp() and pass the png_jmpbuf(png_ptr). If you
-write the file from different routines, you will need to update
-the png_jmpbuf(png_ptr) every time you enter a new routine that will
-call a png_*() function. See your documentation of setjmp/longjmp
-for your compiler for more information on setjmp/longjmp. See
-the discussion on libpng error handling in the Customizing Libpng
-section below for more information on the libpng error handling.
-
- if (setjmp(png_jmpbuf(png_ptr)))
- {
- png_destroy_write_struct(&png_ptr, &info_ptr);
- fclose(fp);
- return ERROR;
- }
- ...
- return;
-
-If you would rather avoid the complexity of setjmp/longjmp issues,
-you can compile libpng with PNG_NO_SETJMP, in which case
-errors will result in a call to PNG_ABORT() which defaults to abort().
-
-You can #define PNG_ABORT() to a function that does something
-more useful than abort(), as long as your function does not
-return.
-
-Checking for invalid palette index on write was added at libpng
-1.5.10. If a pixel contains an invalid (out-of-range) index libpng issues
-a benign error. This is enabled by default because this condition is an
-error according to the PNG specification, Clause 11.3.2, but the error can
-be ignored in each png_ptr with
-
- png_set_check_for_invalid_index(png_ptr, 0);
-
-If the error is ignored, or if png_benign_error() treats it as a warning,
-any invalid pixels are written as-is by the encoder, resulting in an
-invalid PNG datastream as output. In this case the application is
-responsible for ensuring that the pixel indexes are in range when it writes
-a PLTE chunk with fewer entries than the bit depth would allow.
-
-Now you need to set up the output code. The default for libpng is to
-use the C function fwrite(). If you use this, you will need to pass a
-valid FILE * in the function png_init_io(). Be sure that the file is
-opened in binary mode. Again, if you wish to handle writing data in
-another way, see the discussion on libpng I/O handling in the Customizing
-Libpng section below.
-
- png_init_io(png_ptr, fp);
-
-If you are embedding your PNG into a datastream such as MNG, and don't
-want libpng to write the 8-byte signature, or if you have already
-written the signature in your application, use
-
- png_set_sig_bytes(png_ptr, 8);
-
-to inform libpng that it should not write a signature.
-
-.SS Write callbacks
-
-At this point, you can set up a callback function that will be
-called after each row has been written, which you can use to control
-a progress meter or the like. It's demonstrated in pngtest.c.
-You must supply a function
-
- void write_row_callback(png_structp png_ptr, png_uint_32 row,
- int pass);
- {
- /* put your code here */
- }
-
-(You can give it another name that you like instead of "write_row_callback")
-
-To inform libpng about your function, use
-
- png_set_write_status_fn(png_ptr, write_row_callback);
-
-When this function is called the row has already been completely processed and
-it has also been written out. The 'row' and 'pass' refer to the next row to be
-handled. For the
-non-interlaced case the row that was just handled is simply one less than the
-passed in row number, and pass will always be 0. For the interlaced case the
-same applies unless the row value is 0, in which case the row just handled was
-the last one from one of the preceding passes. Because interlacing may skip a
-pass you cannot be sure that the preceding pass is just 'pass\-1', if you really
-need to know what the last pass is record (row,pass) from the callback and use
-the last recorded value each time.
-
-As with the user transform you can find the output row using the
-PNG_ROW_FROM_PASS_ROW macro.
-
-You now have the option of modifying how the compression library will
-run. The following functions are mainly for testing, but may be useful
-in some cases, like if you need to write PNG files extremely fast and
-are willing to give up some compression, or if you want to get the
-maximum possible compression at the expense of slower writing. If you
-have no special needs in this area, let the library do what it wants by
-not calling this function at all, as it has been tuned to deliver a good
-speed/compression ratio. The second parameter to png_set_filter() is
-the filter method, for which the only valid values are 0 (as of the
-July 1999 PNG specification, version 1.2) or 64 (if you are writing
-a PNG datastream that is to be embedded in a MNG datastream). The third
-parameter is a flag that indicates which filter type(s) are to be tested
-for each scanline. See the PNG specification for details on the specific
-filter types.
-
-
- /* turn on or off filtering, and/or choose
- specific filters. You can use either a single
- PNG_FILTER_VALUE_NAME or the bitwise OR of one
- or more PNG_FILTER_NAME masks.
- */
- png_set_filter(png_ptr, 0,
- PNG_FILTER_NONE | PNG_FILTER_VALUE_NONE |
- PNG_FILTER_SUB | PNG_FILTER_VALUE_SUB |
- PNG_FILTER_UP | PNG_FILTER_VALUE_UP |
- PNG_FILTER_AVG | PNG_FILTER_VALUE_AVG |
- PNG_FILTER_PAETH | PNG_FILTER_VALUE_PAETH|
- PNG_ALL_FILTERS | PNG_FAST_FILTERS);
-
-If an application wants to start and stop using particular filters during
-compression, it should start out with all of the filters (to ensure that
-the previous row of pixels will be stored in case it's needed later),
-and then add and remove them after the start of compression.
-
-If you are writing a PNG datastream that is to be embedded in a MNG
-datastream, the second parameter can be either 0 or 64.
-
-The png_set_compression_*() functions interface to the zlib compression
-library, and should mostly be ignored unless you really know what you are
-doing. The only generally useful call is png_set_compression_level()
-which changes how much time zlib spends on trying to compress the image
-data. See the Compression Library (zlib.h and algorithm.txt, distributed
-with zlib) for details on the compression levels.
-
- #include zlib.h
-
- /* Set the zlib compression level */
- png_set_compression_level(png_ptr,
- Z_BEST_COMPRESSION);
-
- /* Set other zlib parameters for compressing IDAT */
- png_set_compression_mem_level(png_ptr, 8);
- png_set_compression_strategy(png_ptr,
- Z_DEFAULT_STRATEGY);
- png_set_compression_window_bits(png_ptr, 15);
- png_set_compression_method(png_ptr, 8);
- png_set_compression_buffer_size(png_ptr, 8192)
-
- /* Set zlib parameters for text compression
- * If you don't call these, the parameters
- * fall back on those defined for IDAT chunks
- */
- png_set_text_compression_mem_level(png_ptr, 8);
- png_set_text_compression_strategy(png_ptr,
- Z_DEFAULT_STRATEGY);
- png_set_text_compression_window_bits(png_ptr, 15);
- png_set_text_compression_method(png_ptr, 8);
-
-.SS Setting the contents of info for output
-
-You now need to fill in the png_info structure with all the data you
-wish to write before the actual image. Note that the only thing you
-are allowed to write after the image is the text chunks and the time
-chunk (as of PNG Specification 1.2, anyway). See png_write_end() and
-the latest PNG specification for more information on that. If you
-wish to write them before the image, fill them in now, and flag that
-data as being valid. If you want to wait until after the data, don't
-fill them until png_write_end(). For all the fields in png_info and
-their data types, see png.h. For explanations of what the fields
-contain, see the PNG specification.
-
-Some of the more important parts of the png_info are:
-
- png_set_IHDR(png_ptr, info_ptr, width, height,
- bit_depth, color_type, interlace_type,
- compression_type, filter_method)
-
- width - holds the width of the image
- in pixels (up to 2^31).
-
- height - holds the height of the image
- in pixels (up to 2^31).
-
- bit_depth - holds the bit depth of one of the
- image channels.
- (valid values are 1, 2, 4, 8, 16
- and depend also on the
- color_type. See also significant
- bits (sBIT) below).
-
- color_type - describes which color/alpha
- channels are present.
- PNG_COLOR_TYPE_GRAY
- (bit depths 1, 2, 4, 8, 16)
- PNG_COLOR_TYPE_GRAY_ALPHA
- (bit depths 8, 16)
- PNG_COLOR_TYPE_PALETTE
- (bit depths 1, 2, 4, 8)
- PNG_COLOR_TYPE_RGB
- (bit_depths 8, 16)
- PNG_COLOR_TYPE_RGB_ALPHA
- (bit_depths 8, 16)
-
- PNG_COLOR_MASK_PALETTE
- PNG_COLOR_MASK_COLOR
- PNG_COLOR_MASK_ALPHA
-
- interlace_type - PNG_INTERLACE_NONE or
- PNG_INTERLACE_ADAM7
-
- compression_type - (must be
- PNG_COMPRESSION_TYPE_DEFAULT)
-
- filter_method - (must be PNG_FILTER_TYPE_DEFAULT
- or, if you are writing a PNG to
- be embedded in a MNG datastream,
- can also be
- PNG_INTRAPIXEL_DIFFERENCING)
-
-If you call png_set_IHDR(), the call must appear before any of the
-other png_set_*() functions, because they might require access to some of
-the IHDR settings. The remaining png_set_*() functions can be called
-in any order.
-
-If you wish, you can reset the compression_type, interlace_type, or
-filter_method later by calling png_set_IHDR() again; if you do this, the
-width, height, bit_depth, and color_type must be the same in each call.
-
- png_set_PLTE(png_ptr, info_ptr, palette,
- num_palette);
-
- palette - the palette for the file
- (array of png_color)
- num_palette - number of entries in the palette
-
-
- png_set_gAMA(png_ptr, info_ptr, file_gamma);
- png_set_gAMA_fixed(png_ptr, info_ptr, int_file_gamma);
-
- file_gamma - the gamma at which the image was
- created (PNG_INFO_gAMA)
-
- int_file_gamma - 100,000 times the gamma at which
- the image was created
-
- png_set_cHRM(png_ptr, info_ptr, white_x, white_y, red_x, red_y,
- green_x, green_y, blue_x, blue_y)
- png_set_cHRM_XYZ(png_ptr, info_ptr, red_X, red_Y, red_Z, green_X,
- green_Y, green_Z, blue_X, blue_Y, blue_Z)
- png_set_cHRM_fixed(png_ptr, info_ptr, int_white_x, int_white_y,
- int_red_x, int_red_y, int_green_x, int_green_y,
- int_blue_x, int_blue_y)
- png_set_cHRM_XYZ_fixed(png_ptr, info_ptr, int_red_X, int_red_Y,
- int_red_Z, int_green_X, int_green_Y, int_green_Z,
- int_blue_X, int_blue_Y, int_blue_Z)
-
- {white,red,green,blue}_{x,y}
- A color space encoding specified using the chromaticities
- of the end points and the white point.
-
- {red,green,blue}_{X,Y,Z}
- A color space encoding specified using the encoding end
- points - the CIE tristimulus specification of the intended
- color of the red, green and blue channels in the PNG RGB
- data. The white point is simply the sum of the three end
- points.
-
- png_set_sRGB(png_ptr, info_ptr, srgb_intent);
-
- srgb_intent - the rendering intent
- (PNG_INFO_sRGB) The presence of
- the sRGB chunk means that the pixel
- data is in the sRGB color space.
- This chunk also implies specific
- values of gAMA and cHRM. Rendering
- intent is the CSS-1 property that
- has been defined by the International
- Color Consortium
- (http://www.color.org).
- It can be one of
- PNG_sRGB_INTENT_SATURATION,
- PNG_sRGB_INTENT_PERCEPTUAL,
- PNG_sRGB_INTENT_ABSOLUTE, or
- PNG_sRGB_INTENT_RELATIVE.
-
-
- png_set_sRGB_gAMA_and_cHRM(png_ptr, info_ptr,
- srgb_intent);
-
- srgb_intent - the rendering intent
- (PNG_INFO_sRGB) The presence of the
- sRGB chunk means that the pixel
- data is in the sRGB color space.
- This function also causes gAMA and
- cHRM chunks with the specific values
- that are consistent with sRGB to be
- written.
-
- png_set_iCCP(png_ptr, info_ptr, name, compression_type,
- profile, proflen);
-
- name - The profile name.
-
- compression_type - The compression type; always
- PNG_COMPRESSION_TYPE_BASE for PNG 1.0.
- You may give NULL to this argument to
- ignore it.
-
- profile - International Color Consortium color
- profile data. May contain NULs.
-
- proflen - length of profile data in bytes.
-
- png_set_sBIT(png_ptr, info_ptr, sig_bit);
-
- sig_bit - the number of significant bits for
- (PNG_INFO_sBIT) each of the gray, red,
- green, and blue channels, whichever are
- appropriate for the given color type
- (png_color_16)
-
- png_set_tRNS(png_ptr, info_ptr, trans_alpha,
- num_trans, trans_color);
-
- trans_alpha - array of alpha (transparency)
- entries for palette (PNG_INFO_tRNS)
-
- num_trans - number of transparent entries
- (PNG_INFO_tRNS)
-
- trans_color - graylevel or color sample values
- (in order red, green, blue) of the
- single transparent color for
- non-paletted images (PNG_INFO_tRNS)
-
- png_set_eXIf_1(png_ptr, info_ptr, num_exif, exif);
-
- exif - Exif profile (array of
- png_byte) (PNG_INFO_eXIf)
-
- png_set_hIST(png_ptr, info_ptr, hist);
-
- hist - histogram of palette (array of
- png_uint_16) (PNG_INFO_hIST)
-
- png_set_tIME(png_ptr, info_ptr, mod_time);
-
- mod_time - time image was last modified
- (PNG_VALID_tIME)
-
- png_set_bKGD(png_ptr, info_ptr, background);
-
- background - background color (of type
- png_color_16p) (PNG_VALID_bKGD)
-
- png_set_text(png_ptr, info_ptr, text_ptr, num_text);
-
- text_ptr - array of png_text holding image
- comments
-
- text_ptr[i].compression - type of compression used
- on "text" PNG_TEXT_COMPRESSION_NONE
- PNG_TEXT_COMPRESSION_zTXt
- PNG_ITXT_COMPRESSION_NONE
- PNG_ITXT_COMPRESSION_zTXt
- text_ptr[i].key - keyword for comment. Must contain
- 1-79 characters.
- text_ptr[i].text - text comments for current
- keyword. Can be NULL or empty.
- text_ptr[i].text_length - length of text string,
- after decompression, 0 for iTXt
- text_ptr[i].itxt_length - length of itxt string,
- after decompression, 0 for tEXt/zTXt
- text_ptr[i].lang - language of comment (NULL or
- empty for unknown).
- text_ptr[i].translated_keyword - keyword in UTF-8 (NULL
- or empty for unknown).
-
- Note that the itxt_length, lang, and lang_key
- members of the text_ptr structure only exist when the
- library is built with iTXt chunk support. Prior to
- libpng-1.4.0 the library was built by default without
- iTXt support. Also note that when iTXt is supported,
- they contain NULL pointers when the "compression"
- field contains PNG_TEXT_COMPRESSION_NONE or
- PNG_TEXT_COMPRESSION_zTXt.
-
- num_text - number of comments
-
- png_set_sPLT(png_ptr, info_ptr, &palette_ptr,
- num_spalettes);
-
- palette_ptr - array of png_sPLT_struct structures
- to be added to the list of palettes
- in the info structure.
- num_spalettes - number of palette structures to be
- added.
-
- png_set_oFFs(png_ptr, info_ptr, offset_x, offset_y,
- unit_type);
-
- offset_x - positive offset from the left
- edge of the screen
-
- offset_y - positive offset from the top
- edge of the screen
-
- unit_type - PNG_OFFSET_PIXEL, PNG_OFFSET_MICROMETER
-
- png_set_pHYs(png_ptr, info_ptr, res_x, res_y,
- unit_type);
-
- res_x - pixels/unit physical resolution
- in x direction
-
- res_y - pixels/unit physical resolution
- in y direction
-
- unit_type - PNG_RESOLUTION_UNKNOWN,
- PNG_RESOLUTION_METER
-
- png_set_sCAL(png_ptr, info_ptr, unit, width, height)
-
- unit - physical scale units (an integer)
-
- width - width of a pixel in physical scale units
-
- height - height of a pixel in physical scale units
- (width and height are doubles)
-
- png_set_sCAL_s(png_ptr, info_ptr, unit, width, height)
-
- unit - physical scale units (an integer)
-
- width - width of a pixel in physical scale units
- expressed as a string
-
- height - height of a pixel in physical scale units
- (width and height are strings like "2.54")
-
- png_set_unknown_chunks(png_ptr, info_ptr, &unknowns,
- num_unknowns)
-
- unknowns - array of png_unknown_chunk
- structures holding unknown chunks
- unknowns[i].name - name of unknown chunk
- unknowns[i].data - data of unknown chunk
- unknowns[i].size - size of unknown chunk's data
- unknowns[i].location - position to write chunk in file
- 0: do not write chunk
- PNG_HAVE_IHDR: before PLTE
- PNG_HAVE_PLTE: before IDAT
- PNG_AFTER_IDAT: after IDAT
-
-The "location" member is set automatically according to
-what part of the output file has already been written.
-You can change its value after calling png_set_unknown_chunks()
-as demonstrated in pngtest.c. Within each of the "locations",
-the chunks are sequenced according to their position in the
-structure (that is, the value of "i", which is the order in which
-the chunk was either read from the input file or defined with
-png_set_unknown_chunks).
-
-A quick word about text and num_text. text is an array of png_text
-structures. num_text is the number of valid structures in the array.
-Each png_text structure holds a language code, a keyword, a text value,
-and a compression type.
-
-The compression types have the same valid numbers as the compression
-types of the image data. Currently, the only valid number is zero.
-However, you can store text either compressed or uncompressed, unlike
-images, which always have to be compressed. So if you don't want the
-text compressed, set the compression type to PNG_TEXT_COMPRESSION_NONE.
-Because tEXt and zTXt chunks don't have a language field, if you
-specify PNG_TEXT_COMPRESSION_NONE or PNG_TEXT_COMPRESSION_zTXt
-any language code or translated keyword will not be written out.
-
-Until text gets around a few hundred bytes, it is not worth compressing it.
-After the text has been written out to the file, the compression type
-is set to PNG_TEXT_COMPRESSION_NONE_WR or PNG_TEXT_COMPRESSION_zTXt_WR,
-so that it isn't written out again at the end (in case you are calling
-png_write_end() with the same struct).
-
-The keywords that are given in the PNG Specification are:
-
- Title Short (one line) title or
- caption for image
-
- Author Name of image's creator
-
- Description Description of image (possibly long)
-
- Copyright Copyright notice
-
- Creation Time Time of original image creation
- (usually RFC 1123 format, see below)
-
- Software Software used to create the image
-
- Disclaimer Legal disclaimer
-
- Warning Warning of nature of content
-
- Source Device used to create the image
-
- Comment Miscellaneous comment; conversion
- from other image format
-
-The keyword-text pairs work like this. Keywords should be short
-simple descriptions of what the comment is about. Some typical
-keywords are found in the PNG specification, as is some recommendations
-on keywords. You can repeat keywords in a file. You can even write
-some text before the image and some after. For example, you may want
-to put a description of the image before the image, but leave the
-disclaimer until after, so viewers working over modem connections
-don't have to wait for the disclaimer to go over the modem before
-they start seeing the image. Finally, keywords should be full
-words, not abbreviations. Keywords and text are in the ISO 8859-1
-(Latin-1) character set (a superset of regular ASCII) and can not
-contain NUL characters, and should not contain control or other
-unprintable characters. To make the comments widely readable, stick
-with basic ASCII, and avoid machine specific character set extensions
-like the IBM-PC character set. The keyword must be present, but
-you can leave off the text string on non-compressed pairs.
-Compressed pairs must have a text string, as only the text string
-is compressed anyway, so the compression would be meaningless.
-
-PNG supports modification time via the png_time structure. Two
-conversion routines are provided, png_convert_from_time_t() for
-time_t and png_convert_from_struct_tm() for struct tm. The
-time_t routine uses gmtime(). You don't have to use either of
-these, but if you wish to fill in the png_time structure directly,
-you should provide the time in universal time (GMT) if possible
-instead of your local time. Note that the year number is the full
-year (e.g. 1998, rather than 98 - PNG is year 2000 compliant!), and
-that months start with 1.
-
-If you want to store the time of the original image creation, you should
-use a plain tEXt chunk with the "Creation Time" keyword. This is
-necessary because the "creation time" of a PNG image is somewhat vague,
-depending on whether you mean the PNG file, the time the image was
-created in a non-PNG format, a still photo from which the image was
-scanned, or possibly the subject matter itself. In order to facilitate
-machine-readable dates, it is recommended that the "Creation Time"
-tEXt chunk use RFC 1123 format dates (e.g. "22 May 1997 18:07:10 GMT"),
-although this isn't a requirement. Unlike the tIME chunk, the
-"Creation Time" tEXt chunk is not expected to be automatically changed
-by the software. To facilitate the use of RFC 1123 dates, a function
-png_convert_to_rfc1123_buffer(buffer, png_timep) is provided to
-convert from PNG time to an RFC 1123 format string. The caller must provide
-a writeable buffer of at least 29 bytes.
-
-.SS Writing unknown chunks
-
-You can use the png_set_unknown_chunks function to queue up private chunks
-for writing. You give it a chunk name, location, raw data, and a size. You
-also must use png_set_keep_unknown_chunks() to ensure that libpng will
-handle them. That's all there is to it. The chunks will be written by the
-next following png_write_info_before_PLTE, png_write_info, or png_write_end
-function, depending upon the specified location. Any chunks previously
-read into the info structure's unknown-chunk list will also be written out
-in a sequence that satisfies the PNG specification's ordering rules.
-
-Here is an example of writing two private chunks, prVt and miNE:
-
- #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
- /* Set unknown chunk data */
- png_unknown_chunk unk_chunk[2];
- strcpy((char *) unk_chunk[0].name, "prVt";
- unk_chunk[0].data = (unsigned char *) "PRIVATE DATA";
- unk_chunk[0].size = strlen(unk_chunk[0].data)+1;
- unk_chunk[0].location = PNG_HAVE_IHDR;
- strcpy((char *) unk_chunk[1].name, "miNE";
- unk_chunk[1].data = (unsigned char *) "MY CHUNK DATA";
- unk_chunk[1].size = strlen(unk_chunk[0].data)+1;
- unk_chunk[1].location = PNG_AFTER_IDAT;
- png_set_unknown_chunks(write_ptr, write_info_ptr,
- unk_chunk, 2);
- /* Needed because miNE is not safe-to-copy */
- png_set_keep_unknown_chunks(png, PNG_HANDLE_CHUNK_ALWAYS,
- (png_bytep) "miNE", 1);
- # if PNG_LIBPNG_VER < 10600
- /* Deal with unknown chunk location bug in 1.5.x and earlier */
- png_set_unknown_chunk_location(png, info, 0, PNG_HAVE_IHDR);
- png_set_unknown_chunk_location(png, info, 1, PNG_AFTER_IDAT);
- # endif
- # if PNG_LIBPNG_VER < 10500
- /* PNG_AFTER_IDAT writes two copies of the chunk prior to libpng-1.5.0,
- * one before IDAT and another after IDAT, so don't use it; only use
- * PNG_HAVE_IHDR location. This call resets the location previously
- * set by assignment and png_set_unknown_chunk_location() for chunk 1.
- */
- png_set_unknown_chunk_location(png, info, 1, PNG_HAVE_IHDR);
- # endif
- #endif
-
-.SS The high-level write interface
-
-At this point there are two ways to proceed; through the high-level
-write interface, or through a sequence of low-level write operations.
-You can use the high-level interface if your image data is present
-in the info structure. All defined output
-transformations are permitted, enabled by the following masks.
-
- PNG_TRANSFORM_IDENTITY No transformation
- PNG_TRANSFORM_PACKING Pack 1, 2 and 4-bit samples
- PNG_TRANSFORM_PACKSWAP Change order of packed
- pixels to LSB first
- PNG_TRANSFORM_INVERT_MONO Invert monochrome images
- PNG_TRANSFORM_SHIFT Normalize pixels to the
- sBIT depth
- PNG_TRANSFORM_BGR Flip RGB to BGR, RGBA
- to BGRA
- PNG_TRANSFORM_SWAP_ALPHA Flip RGBA to ARGB or GA
- to AG
- PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity
- to transparency
- PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples
- PNG_TRANSFORM_STRIP_FILLER Strip out filler
- bytes (deprecated).
- PNG_TRANSFORM_STRIP_FILLER_BEFORE Strip out leading
- filler bytes
- PNG_TRANSFORM_STRIP_FILLER_AFTER Strip out trailing
- filler bytes
-
-If you have valid image data in the info structure (you can use
-png_set_rows() to put image data in the info structure), simply do this:
-
- png_write_png(png_ptr, info_ptr, png_transforms, NULL)
-
-where png_transforms is an integer containing the bitwise OR of some set of
-transformation flags. This call is equivalent to png_write_info(),
-followed the set of transformations indicated by the transform mask,
-then png_write_image(), and finally png_write_end().
-
-(The final parameter of this call is not yet used. Someday it might point
-to transformation parameters required by some future output transform.)
-
-You must use png_transforms and not call any png_set_transform() functions
-when you use png_write_png().
-
-.SS The low-level write interface
-
-If you are going the low-level route instead, you are now ready to
-write all the file information up to the actual image data. You do
-this with a call to png_write_info().
-
- png_write_info(png_ptr, info_ptr);
-
-Note that there is one transformation you may need to do before
-png_write_info(). In PNG files, the alpha channel in an image is the
-level of opacity. If your data is supplied as a level of transparency,
-you can invert the alpha channel before you write it, so that 0 is
-fully transparent and 255 (in 8-bit or paletted images) or 65535
-(in 16-bit images) is fully opaque, with
-
- png_set_invert_alpha(png_ptr);
-
-This must appear before png_write_info() instead of later with the
-other transformations because in the case of paletted images the tRNS
-chunk data has to be inverted before the tRNS chunk is written. If
-your image is not a paletted image, the tRNS data (which in such cases
-represents a single color to be rendered as transparent) won't need to
-be changed, and you can safely do this transformation after your
-png_write_info() call.
-
-If you need to write a private chunk that you want to appear before
-the PLTE chunk when PLTE is present, you can write the PNG info in
-two steps, and insert code to write your own chunk between them:
-
- png_write_info_before_PLTE(png_ptr, info_ptr);
- png_set_unknown_chunks(png_ptr, info_ptr, ...);
- png_write_info(png_ptr, info_ptr);
-
-After you've written the file information, you can set up the library
-to handle any special transformations of the image data. The various
-ways to transform the data will be described in the order that they
-should occur. This is important, as some of these change the color
-type and/or bit depth of the data, and some others only work on
-certain color types and bit depths. Even though each transformation
-checks to see if it has data that it can do something with, you should
-make sure to only enable a transformation if it will be valid for the
-data. For example, don't swap red and blue on grayscale data.
-
-PNG files store RGB pixels packed into 3 or 6 bytes. This code tells
-the library to strip input data that has 4 or 8 bytes per pixel down
-to 3 or 6 bytes (or strip 2 or 4-byte grayscale+filler data to 1 or 2
-bytes per pixel).
-
- png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE);
-
-where the 0 is unused, and the location is either PNG_FILLER_BEFORE or
-PNG_FILLER_AFTER, depending upon whether the filler byte in the pixel
-is stored XRGB or RGBX.
-
-PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as
-they can, resulting in, for example, 8 pixels per byte for 1 bit files.
-If the data is supplied at 1 pixel per byte, use this code, which will
-correctly pack the pixels into a single byte:
-
- png_set_packing(png_ptr);
-
-PNG files reduce possible bit depths to 1, 2, 4, 8, and 16. If your
-data is of another bit depth, you can write an sBIT chunk into the
-file so that decoders can recover the original data if desired.
-
- /* Set the true bit depth of the image data */
- if (color_type & PNG_COLOR_MASK_COLOR)
- {
- sig_bit.red = true_bit_depth;
- sig_bit.green = true_bit_depth;
- sig_bit.blue = true_bit_depth;
- }
-
- else
- {
- sig_bit.gray = true_bit_depth;
- }
-
- if (color_type & PNG_COLOR_MASK_ALPHA)
- {
- sig_bit.alpha = true_bit_depth;
- }
-
- png_set_sBIT(png_ptr, info_ptr, &sig_bit);
-
-If the data is stored in the row buffer in a bit depth other than
-one supported by PNG (e.g. 3 bit data in the range 0-7 for a 4-bit PNG),
-this will scale the values to appear to be the correct bit depth as
-is required by PNG.
-
- png_set_shift(png_ptr, &sig_bit);
-
-PNG files store 16-bit pixels in network byte order (big-endian,
-ie. most significant bits first). This code would be used if they are
-supplied the other way (little-endian, i.e. least significant bits
-first, the way PCs store them):
-
- if (bit_depth > 8)
- png_set_swap(png_ptr);
-
-If you are using packed-pixel images (1, 2, or 4 bits/pixel), and you
-need to change the order the pixels are packed into bytes, you can use:
-
- if (bit_depth < 8)
- png_set_packswap(png_ptr);
-
-PNG files store 3 color pixels in red, green, blue order. This code
-would be used if they are supplied as blue, green, red:
-
- png_set_bgr(png_ptr);
-
-PNG files describe monochrome as black being zero and white being
-one. This code would be used if the pixels are supplied with this reversed
-(black being one and white being zero):
-
- png_set_invert_mono(png_ptr);
-
-Finally, you can write your own transformation function if none of
-the existing ones meets your needs. This is done by setting a callback
-with
-
- png_set_write_user_transform_fn(png_ptr,
- write_transform_fn);
-
-You must supply the function
-
- void write_transform_fn(png_structp png_ptr, png_row_infop
- row_info, png_bytep data)
-
-See pngtest.c for a working example. Your function will be called
-before any of the other transformations are processed. If supported
-libpng also supplies an information routine that may be called from
-your callback:
-
- png_get_current_row_number(png_ptr);
- png_get_current_pass_number(png_ptr);
-
-This returns the current row passed to the transform. With interlaced
-images the value returned is the row in the input sub-image image. Use
-PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to
-find the output pixel (x,y) given an interlaced sub-image pixel (row,col,pass).
-
-The discussion of interlace handling above contains more information on how to
-use these values.
-
-You can also set up a pointer to a user structure for use by your
-callback function.
-
- png_set_user_transform_info(png_ptr, user_ptr, 0, 0);
-
-The user_channels and user_depth parameters of this function are ignored
-when writing; you can set them to zero as shown.
-
-You can retrieve the pointer via the function png_get_user_transform_ptr().
-For example:
-
- voidp write_user_transform_ptr =
- png_get_user_transform_ptr(png_ptr);
-
-It is possible to have libpng flush any pending output, either manually,
-or automatically after a certain number of lines have been written. To
-flush the output stream a single time call:
-
- png_write_flush(png_ptr);
-
-and to have libpng flush the output stream periodically after a certain
-number of scanlines have been written, call:
-
- png_set_flush(png_ptr, nrows);
-
-Note that the distance between rows is from the last time png_write_flush()
-was called, or the first row of the image if it has never been called.
-So if you write 50 lines, and then png_set_flush 25, it will flush the
-output on the next scanline, and every 25 lines thereafter, unless
-png_write_flush() is called before 25 more lines have been written.
-If nrows is too small (less than about 10 lines for a 640 pixel wide
-RGB image) the image compression may decrease noticeably (although this
-may be acceptable for real-time applications). Infrequent flushing will
-only degrade the compression performance by a few percent over images
-that do not use flushing.
-
-.SS Writing the image data
-
-That's it for the transformations. Now you can write the image data.
-The simplest way to do this is in one function call. If you have the
-whole image in memory, you can just call png_write_image() and libpng
-will write the image. You will need to pass in an array of pointers to
-each row. This function automatically handles interlacing, so you don't
-need to call png_set_interlace_handling() or call this function multiple
-times, or any of that other stuff necessary with png_write_rows().
-
- png_write_image(png_ptr, row_pointers);
-
-where row_pointers is:
-
- png_byte *row_pointers[height];
-
-You can point to void or char or whatever you use for pixels.
-
-If you don't want to write the whole image at once, you can
-use png_write_rows() instead. If the file is not interlaced,
-this is simple:
-
- png_write_rows(png_ptr, row_pointers,
- number_of_rows);
-
-row_pointers is the same as in the png_write_image() call.
-
-If you are just writing one row at a time, you can do this with
-a single row_pointer instead of an array of row_pointers:
-
- png_bytep row_pointer = row;
-
- png_write_row(png_ptr, row_pointer);
-
-When the file is interlaced, things can get a good deal more complicated.
-The only currently (as of the PNG Specification version 1.2, dated July
-1999) defined interlacing scheme for PNG files is the "Adam7" interlace
-scheme, that breaks down an image into seven smaller images of varying
-size. libpng will build these images for you, or you can do them
-yourself. If you want to build them yourself, see the PNG specification
-for details of which pixels to write when.
-
-If you don't want libpng to handle the interlacing details, just
-use png_set_interlace_handling() and call png_write_rows() the
-correct number of times to write all the sub-images
-(png_set_interlace_handling() returns the number of sub-images.)
-
-If you want libpng to build the sub-images, call this before you start
-writing any rows:
-
- number_of_passes = png_set_interlace_handling(png_ptr);
-
-This will return the number of passes needed. Currently, this is seven,
-but may change if another interlace type is added.
-
-Then write the complete image number_of_passes times.
-
- png_write_rows(png_ptr, row_pointers, number_of_rows);
-
-Think carefully before you write an interlaced image. Typically code that
-reads such images reads all the image data into memory, uncompressed, before
-doing any processing. Only code that can display an image on the fly can
-take advantage of the interlacing and even then the image has to be exactly
-the correct size for the output device, because scaling an image requires
-adjacent pixels and these are not available until all the passes have been
-read.
-
-If you do write an interlaced image you will hardly ever need to handle
-the interlacing yourself. Call png_set_interlace_handling() and use the
-approach described above.
-
-The only time it is conceivable that you will really need to write an
-interlaced image pass-by-pass is when you have read one pass by pass and
-made some pixel-by-pixel transformation to it, as described in the read
-code above. In this case use the PNG_PASS_ROWS and PNG_PASS_COLS macros
-to determine the size of each sub-image in turn and simply write the rows
-you obtained from the read code.
-
-.SS Finishing a sequential write
-
-After you are finished writing the image, you should finish writing
-the file. If you are interested in writing comments or time, you should
-pass an appropriately filled png_info pointer. If you are not interested,
-you can pass NULL.
-
- png_write_end(png_ptr, info_ptr);
-
-When you are done, you can free all memory used by libpng like this:
-
- png_destroy_write_struct(&png_ptr, &info_ptr);
-
-It is also possible to individually free the info_ptr members that
-point to libpng-allocated storage with the following function:
-
- png_free_data(png_ptr, info_ptr, mask, seq)
-
- mask - identifies data to be freed, a mask
- containing the bitwise OR of one or
- more of
- PNG_FREE_PLTE, PNG_FREE_TRNS,
- PNG_FREE_HIST, PNG_FREE_ICCP,
- PNG_FREE_PCAL, PNG_FREE_ROWS,
- PNG_FREE_SCAL, PNG_FREE_SPLT,
- PNG_FREE_TEXT, PNG_FREE_UNKN,
- or simply PNG_FREE_ALL
-
- seq - sequence number of item to be freed
- (\-1 for all items)
-
-This function may be safely called when the relevant storage has
-already been freed, or has not yet been allocated, or was allocated
-by the user and not by libpng, and will in those cases do nothing.
-The "seq" parameter is ignored if only one item of the selected data
-type, such as PLTE, is allowed. If "seq" is not \-1, and multiple items
-are allowed for the data type identified in the mask, such as text or
-sPLT, only the n'th item in the structure is freed, where n is "seq".
-
-If you allocated data such as a palette that you passed in to libpng
-with png_set_*, you must not free it until just before the call to
-png_destroy_write_struct().
-
-The default behavior is only to free data that was allocated internally
-by libpng. This can be changed, so that libpng will not free the data,
-or so that it will free data that was allocated by the user with png_malloc()
-or png_calloc() and passed in via a png_set_*() function, with
-
- png_data_freer(png_ptr, info_ptr, freer, mask)
-
- freer - one of
- PNG_DESTROY_WILL_FREE_DATA
- PNG_SET_WILL_FREE_DATA
- PNG_USER_WILL_FREE_DATA
-
- mask - which data elements are affected
- same choices as in png_free_data()
-
-For example, to transfer responsibility for some data from a read structure
-to a write structure, you could use
-
- png_data_freer(read_ptr, read_info_ptr,
- PNG_USER_WILL_FREE_DATA,
- PNG_FREE_PLTE|PNG_FREE_tRNS|PNG_FREE_hIST)
-
- png_data_freer(write_ptr, write_info_ptr,
- PNG_DESTROY_WILL_FREE_DATA,
- PNG_FREE_PLTE|PNG_FREE_tRNS|PNG_FREE_hIST)
-
-thereby briefly reassigning responsibility for freeing to the user but
-immediately afterwards reassigning it once more to the write_destroy
-function. Having done this, it would then be safe to destroy the read
-structure and continue to use the PLTE, tRNS, and hIST data in the write
-structure.
-
-This function only affects data that has already been allocated.
-You can call this function before calling after the png_set_*() functions
-to control whether the user or png_destroy_*() is supposed to free the data.
-When the user assumes responsibility for libpng-allocated data, the
-application must use
-png_free() to free it, and when the user transfers responsibility to libpng
-for data that the user has allocated, the user must have used png_malloc()
-or png_calloc() to allocate it.
-
-If you allocated text_ptr.text, text_ptr.lang, and text_ptr.translated_keyword
-separately, do not transfer responsibility for freeing text_ptr to libpng,
-because when libpng fills a png_text structure it combines these members with
-the key member, and png_free_data() will free only text_ptr.key. Similarly,
-if you transfer responsibility for free'ing text_ptr from libpng to your
-application, your application must not separately free those members.
-For a more compact example of writing a PNG image, see the file example.c.
-
-.SH V. Simplified API
-
-The simplified API, which became available in libpng-1.6.0, hides the details
-of both libpng and the PNG file format itself.
-It allows PNG files to be read into a very limited number of
-in-memory bitmap formats or to be written from the same formats. If these
-formats do not accommodate your needs then you can, and should, use the more
-sophisticated APIs above - these support a wide variety of in-memory formats
-and a wide variety of sophisticated transformations to those formats as well
-as a wide variety of APIs to manipulate ancillary information.
-
-To read a PNG file using the simplified API:
-
- 1) Declare a 'png_image' structure (see below) on the stack, set the
- version field to PNG_IMAGE_VERSION and the 'opaque' pointer to NULL
- (this is REQUIRED, your program may crash if you don't do it.)
-
- 2) Call the appropriate png_image_begin_read... function.
-
- 3) Set the png_image 'format' member to the required sample format.
-
- 4) Allocate a buffer for the image and, if required, the color-map.
-
- 5) Call png_image_finish_read to read the image and, if required, the
- color-map into your buffers.
-
-There are no restrictions on the format of the PNG input itself; all valid
-color types, bit depths, and interlace methods are acceptable, and the
-input image is transformed as necessary to the requested in-memory format
-during the png_image_finish_read() step. The only caveat is that if you
-request a color-mapped image from a PNG that is full-color or makes
-complex use of an alpha channel the transformation is extremely lossy and the
-result may look terrible.
-
-To write a PNG file using the simplified API:
-
- 1) Declare a 'png_image' structure on the stack and memset()
- it to all zero.
-
- 2) Initialize the members of the structure that describe the
- image, setting the 'format' member to the format of the
- image samples.
-
- 3) Call the appropriate png_image_write... function with a
- pointer to the image and, if necessary, the color-map to write
- the PNG data.
-
-png_image is a structure that describes the in-memory format of an image
-when it is being read or defines the in-memory format of an image that you
-need to write. The "png_image" structure contains the following members:
-
- png_controlp opaque Initialize to NULL, free with png_image_free
- png_uint_32 version Set to PNG_IMAGE_VERSION
- png_uint_32 width Image width in pixels (columns)
- png_uint_32 height Image height in pixels (rows)
- png_uint_32 format Image format as defined below
- png_uint_32 flags A bit mask containing informational flags
- png_uint_32 colormap_entries; Number of entries in the color-map
- png_uint_32 warning_or_error;
- char message[64];
-
-In the event of an error or warning the "warning_or_error"
-field will be set to a non-zero value and the 'message' field will contain
-a '\0' terminated string with the libpng error or warning message. If both
-warnings and an error were encountered, only the error is recorded. If there
-are multiple warnings, only the first one is recorded.
-
-The upper 30 bits of the "warning_or_error" value are reserved; the low two
-bits contain a two bit code such that a value more than 1 indicates a failure
-in the API just called:
-
- 0 - no warning or error
- 1 - warning
- 2 - error
- 3 - error preceded by warning
-
-The pixels (samples) of the image have one to four channels whose components
-have original values in the range 0 to 1.0:
-
- 1: A single gray or luminance channel (G).
- 2: A gray/luminance channel and an alpha channel (GA).
- 3: Three red, green, blue color channels (RGB).
- 4: Three color channels and an alpha channel (RGBA).
-
-The channels are encoded in one of two ways:
-
- a) As a small integer, value 0..255, contained in a single byte. For the
-alpha channel the original value is simply value/255. For the color or
-luminance channels the value is encoded according to the sRGB specification
-and matches the 8-bit format expected by typical display devices.
-
-The color/gray channels are not scaled (pre-multiplied) by the alpha
-channel and are suitable for passing to color management software.
-
- b) As a value in the range 0..65535, contained in a 2-byte integer, in
-the native byte order of the platform on which the application is running.
-All channels can be converted to the original value by dividing by 65535; all
-channels are linear. Color channels use the RGB encoding (RGB end-points) of
-the sRGB specification. This encoding is identified by the
-PNG_FORMAT_FLAG_LINEAR flag below.
-
-When the simplified API needs to convert between sRGB and linear colorspaces,
-the actual sRGB transfer curve defined in the sRGB specification (see the
-article at https://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2
-approximation used elsewhere in libpng.
-
-When an alpha channel is present it is expected to denote pixel coverage
-of the color or luminance channels and is returned as an associated alpha
-channel: the color/gray channels are scaled (pre-multiplied) by the alpha
-value.
-
-The samples are either contained directly in the image data, between 1 and 8
-bytes per pixel according to the encoding, or are held in a color-map indexed
-by bytes in the image data. In the case of a color-map the color-map entries
-are individual samples, encoded as above, and the image data has one byte per
-pixel to select the relevant sample from the color-map.
-
-PNG_FORMAT_*
-
-The #defines to be used in png_image::format. Each #define identifies a
-particular layout of channel data and, if present, alpha values. There are
-separate defines for each of the two component encodings.
-
-A format is built up using single bit flag values. All combinations are
-valid. Formats can be built up from the flag values or you can use one of
-the predefined values below. When testing formats always use the FORMAT_FLAG
-macros to test for individual features - future versions of the library may
-add new flags.
-
-When reading or writing color-mapped images the format should be set to the
-format of the entries in the color-map then png_image_{read,write}_colormap
-called to read or write the color-map and set the format correctly for the
-image data. Do not set the PNG_FORMAT_FLAG_COLORMAP bit directly!
-
-NOTE: libpng can be built with particular features disabled. If you see
-compiler errors because the definition of one of the following flags has been
-compiled out it is because libpng does not have the required support. It is
-possible, however, for the libpng configuration to enable the format on just
-read or just write; in that case you may see an error at run time.
-You can guard against this by checking for the definition of the
-appropriate "_SUPPORTED" macro, one of:
-
- PNG_SIMPLIFIED_{READ,WRITE}_{BGR,AFIRST}_SUPPORTED
-
- PNG_FORMAT_FLAG_ALPHA format with an alpha channel
- PNG_FORMAT_FLAG_COLOR color format: otherwise grayscale
- PNG_FORMAT_FLAG_LINEAR 2-byte channels else 1-byte
- PNG_FORMAT_FLAG_COLORMAP image data is color-mapped
- PNG_FORMAT_FLAG_BGR BGR colors, else order is RGB
- PNG_FORMAT_FLAG_AFIRST alpha channel comes first
-
-Supported formats are as follows. Future versions of libpng may support more
-formats; for compatibility with older versions simply check if the format
-macro is defined using #ifdef. These defines describe the in-memory layout
-of the components of the pixels of the image.
-
-First the single byte (sRGB) formats:
-
- PNG_FORMAT_GRAY
- PNG_FORMAT_GA
- PNG_FORMAT_AG
- PNG_FORMAT_RGB
- PNG_FORMAT_BGR
- PNG_FORMAT_RGBA
- PNG_FORMAT_ARGB
- PNG_FORMAT_BGRA
- PNG_FORMAT_ABGR
-
-Then the linear 2-byte formats. When naming these "Y" is used to
-indicate a luminance (gray) channel. The component order within the pixel
-is always the same - there is no provision for swapping the order of the
-components in the linear format. The components are 16-bit integers in
-the native byte order for your platform, and there is no provision for
-swapping the bytes to a different endian condition.
-
- PNG_FORMAT_LINEAR_Y
- PNG_FORMAT_LINEAR_Y_ALPHA
- PNG_FORMAT_LINEAR_RGB
- PNG_FORMAT_LINEAR_RGB_ALPHA
-
-With color-mapped formats the image data is one byte for each pixel. The byte
-is an index into the color-map which is formatted as above. To obtain a
-color-mapped format it is sufficient just to add the PNG_FOMAT_FLAG_COLORMAP
-to one of the above definitions, or you can use one of the definitions below.
-
- PNG_FORMAT_RGB_COLORMAP
- PNG_FORMAT_BGR_COLORMAP
- PNG_FORMAT_RGBA_COLORMAP
- PNG_FORMAT_ARGB_COLORMAP
- PNG_FORMAT_BGRA_COLORMAP
- PNG_FORMAT_ABGR_COLORMAP
-
-PNG_IMAGE macros
-
-These are convenience macros to derive information from a png_image
-structure. The PNG_IMAGE_SAMPLE_ macros return values appropriate to the
-actual image sample values - either the entries in the color-map or the
-pixels in the image. The PNG_IMAGE_PIXEL_ macros return corresponding values
-for the pixels and will always return 1 for color-mapped formats. The
-remaining macros return information about the rows in the image and the
-complete image.
-
-NOTE: All the macros that take a png_image::format parameter are compile time
-constants if the format parameter is, itself, a constant. Therefore these
-macros can be used in array declarations and case labels where required.
-Similarly the macros are also pre-processor constants (sizeof is not used) so
-they can be used in #if tests.
-
- PNG_IMAGE_SAMPLE_CHANNELS(fmt)
- Returns the total number of channels in a given format: 1..4
-
- PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt)
- Returns the size in bytes of a single component of a pixel or color-map
- entry (as appropriate) in the image: 1 or 2.
-
- PNG_IMAGE_SAMPLE_SIZE(fmt)
- This is the size of the sample data for one sample. If the image is
- color-mapped it is the size of one color-map entry (and image pixels are
- one byte in size), otherwise it is the size of one image pixel.
-
- PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(fmt)
- The maximum size of the color-map required by the format expressed in a
- count of components. This can be used to compile-time allocate a
- color-map:
-
- png_uint_16 colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(linear_fmt)];
-
- png_byte colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(sRGB_fmt)];
-
- Alternatively use the PNG_IMAGE_COLORMAP_SIZE macro below to use the
- information from one of the png_image_begin_read_ APIs and dynamically
- allocate the required memory.
-
- PNG_IMAGE_COLORMAP_SIZE(fmt)
- The size of the color-map required by the format; this is the size of the
- color-map buffer passed to the png_image_{read,write}_colormap APIs. It is
- a fixed number determined by the format so can easily be allocated on the
- stack if necessary.
-
-Corresponding information about the pixels
-
- PNG_IMAGE_PIXEL_CHANNELS(fmt)
- The number of separate channels (components) in a pixel; 1 for a
- color-mapped image.
-
- PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt)\
- The size, in bytes, of each component in a pixel; 1 for a color-mapped
- image.
-
- PNG_IMAGE_PIXEL_SIZE(fmt)
- The size, in bytes, of a complete pixel; 1 for a color-mapped image.
-
-Information about the whole row, or whole image
-
- PNG_IMAGE_ROW_STRIDE(image)
- Returns the total number of components in a single row of the image; this
- is the minimum 'row stride', the minimum count of components between each
- row. For a color-mapped image this is the minimum number of bytes in a
- row.
-
- If you need the stride measured in bytes, row_stride_bytes is
- PNG_IMAGE_ROW_STRIDE(image) * PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt)
- plus any padding bytes that your application might need, for example
- to start the next row on a 4-byte boundary.
-
- PNG_IMAGE_BUFFER_SIZE(image, row_stride)
- Return the size, in bytes, of an image buffer given a png_image and a row
- stride - the number of components to leave space for in each row.
-
- PNG_IMAGE_SIZE(image)
- Return the size, in bytes, of the image in memory given just a png_image;
- the row stride is the minimum stride required for the image.
-
- PNG_IMAGE_COLORMAP_SIZE(image)
- Return the size, in bytes, of the color-map of this image. If the image
- format is not a color-map format this will return a size sufficient for
- 256 entries in the given format; check PNG_FORMAT_FLAG_COLORMAP if
- you don't want to allocate a color-map in this case.
-
-PNG_IMAGE_FLAG_*
-
-Flags containing additional information about the image are held in
-the 'flags' field of png_image.
-
- PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB == 0x01
- This indicates that the RGB values of the in-memory bitmap do not
- correspond to the red, green and blue end-points defined by sRGB.
-
- PNG_IMAGE_FLAG_FAST == 0x02
- On write emphasise speed over compression; the resultant PNG file will be
- larger but will be produced significantly faster, particular for large
- images. Do not use this option for images which will be distributed, only
- used it when producing intermediate files that will be read back in
- repeatedly. For a typical 24-bit image the option will double the read
- speed at the cost of increasing the image size by 25%, however for many
- more compressible images the PNG file can be 10 times larger with only a
- slight speed gain.
-
- PNG_IMAGE_FLAG_16BIT_sRGB == 0x04
- On read if the image is a 16-bit per component image and there is no gAMA
- or sRGB chunk assume that the components are sRGB encoded. Notice that
- images output by the simplified API always have gamma information; setting
- this flag only affects the interpretation of 16-bit images from an
- external source. It is recommended that the application expose this flag
- to the user; the user can normally easily recognize the difference between
- linear and sRGB encoding. This flag has no effect on write - the data
- passed to the write APIs must have the correct encoding (as defined
- above.)
-
- If the flag is not set (the default) input 16-bit per component data is
- assumed to be linear.
-
- NOTE: the flag can only be set after the png_image_begin_read_ call,
- because that call initializes the 'flags' field.
-
-READ APIs
-
- The png_image passed to the read APIs must have been initialized by setting
- the png_controlp field 'opaque' to NULL (or, better, memset the whole thing.)
-
- int png_image_begin_read_from_file( png_imagep image,
- const char *file_name)
-
- The named file is opened for read and the image header
- is filled in from the PNG header in the file.
-
- int png_image_begin_read_from_stdio (png_imagep image,
- FILE* file)
-
- The PNG header is read from the stdio FILE object.
-
- int png_image_begin_read_from_memory(png_imagep image,
- png_const_voidp memory, size_t size)
-
- The PNG header is read from the given memory buffer.
-
- int png_image_finish_read(png_imagep image,
- png_colorp background, void *buffer,
- png_int_32 row_stride, void *colormap));
-
- Finish reading the image into the supplied buffer and
- clean up the png_image structure.
-
- row_stride is the step, in png_byte or png_uint_16 units
- as appropriate, between adjacent rows. A positive stride
- indicates that the top-most row is first in the buffer -
- the normal top-down arrangement. A negative stride
- indicates that the bottom-most row is first in the buffer.
-
- background need only be supplied if an alpha channel must
- be removed from a png_byte format and the removal is to be
- done by compositing on a solid color; otherwise it may be
- NULL and any composition will be done directly onto the
- buffer. The value is an sRGB color to use for the
- background, for grayscale output the green channel is used.
-
- For linear output removing the alpha channel is always done
- by compositing on black.
-
- void png_image_free(png_imagep image)
-
- Free any data allocated by libpng in image->opaque,
- setting the pointer to NULL. May be called at any time
- after the structure is initialized.
-
-When the simplified API needs to convert between sRGB and linear colorspaces,
-the actual sRGB transfer curve defined in the sRGB specification (see the
-article at https://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2
-approximation used elsewhere in libpng.
-
-WRITE APIS
-
-For write you must initialize a png_image structure to describe the image to
-be written:
-
- version: must be set to PNG_IMAGE_VERSION
- opaque: must be initialized to NULL
- width: image width in pixels
- height: image height in rows
- format: the format of the data you wish to write
- flags: set to 0 unless one of the defined flags applies; set
- PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB for color format images
- where the RGB values do not correspond to the colors in sRGB.
- colormap_entries: set to the number of entries in the color-map (0 to 256)
-
- int png_image_write_to_file, (png_imagep image,
- const char *file, int convert_to_8bit, const void *buffer,
- png_int_32 row_stride, const void *colormap));
-
- Write the image to the named file.
-
- int png_image_write_to_memory (png_imagep image, void *memory,
- png_alloc_size_t * PNG_RESTRICT memory_bytes,
- int convert_to_8_bit, const void *buffer, ptrdiff_t row_stride,
- const void *colormap));
-
- Write the image to memory.
-
- int png_image_write_to_stdio(png_imagep image, FILE *file,
- int convert_to_8_bit, const void *buffer,
- png_int_32 row_stride, const void *colormap)
-
- Write the image to the given (FILE*).
-
-With all write APIs if image is in one of the linear formats with
-(png_uint_16) data then setting convert_to_8_bit will cause the output to be
-a (png_byte) PNG gamma encoded according to the sRGB specification, otherwise
-a 16-bit linear encoded PNG file is written.
-
-With all APIs row_stride is handled as in the read APIs - it is the spacing
-from one row to the next in component sized units (float) and if negative
-indicates a bottom-up row layout in the buffer. If you pass zero, libpng will
-calculate the row_stride for you from the width and number of channels.
-
-Note that the write API does not support interlacing, sub-8-bit pixels,
-indexed (paletted) images, or most ancillary chunks.
-
-.SH VI. Modifying/Customizing libpng
-
-There are two issues here. The first is changing how libpng does
-standard things like memory allocation, input/output, and error handling.
-The second deals with more complicated things like adding new chunks,
-adding new transformations, and generally changing how libpng works.
-Both of those are compile-time issues; that is, they are generally
-determined at the time the code is written, and there is rarely a need
-to provide the user with a means of changing them.
-
-Memory allocation, input/output, and error handling
-
-All of the memory allocation, input/output, and error handling in libpng
-goes through callbacks that are user-settable. The default routines are
-in pngmem.c, pngrio.c, pngwio.c, and pngerror.c, respectively. To change
-these functions, call the appropriate png_set_*_fn() function.
-
-Memory allocation is done through the functions png_malloc(), png_calloc(),
-and png_free(). The png_malloc() and png_free() functions currently just
-call the standard C functions and png_calloc() calls png_malloc() and then
-clears the newly allocated memory to zero; note that png_calloc(png_ptr, size)
-is not the same as the calloc(number, size) function provided by stdlib.h.
-There is limited support for certain systems with segmented memory
-architectures and the types of pointers declared by png.h match this; you
-will have to use appropriate pointers in your application. If you prefer
-to use a different method of allocating and freeing data, you can use
-png_create_read_struct_2() or png_create_write_struct_2() to register your
-own functions as described above. These functions also provide a void
-pointer that can be retrieved via
-
- mem_ptr=png_get_mem_ptr(png_ptr);
-
-Your replacement memory functions must have prototypes as follows:
-
- png_voidp malloc_fn(png_structp png_ptr,
- png_alloc_size_t size);
-
- void free_fn(png_structp png_ptr, png_voidp ptr);
-
-Your malloc_fn() must return NULL in case of failure. The png_malloc()
-function will normally call png_error() if it receives a NULL from the
-system memory allocator or from your replacement malloc_fn().
-
-Your free_fn() will never be called with a NULL ptr, since libpng's
-png_free() checks for NULL before calling free_fn().
-
-Input/Output in libpng is done through png_read() and png_write(),
-which currently just call fread() and fwrite(). The FILE * is stored in
-png_struct and is initialized via png_init_io(). If you wish to change
-the method of I/O, the library supplies callbacks that you can set
-through the function png_set_read_fn() and png_set_write_fn() at run
-time, instead of calling the png_init_io() function. These functions
-also provide a void pointer that can be retrieved via the function
-png_get_io_ptr(). For example:
-
- png_set_read_fn(png_structp read_ptr,
- voidp read_io_ptr, png_rw_ptr read_data_fn)
-
- png_set_write_fn(png_structp write_ptr,
- voidp write_io_ptr, png_rw_ptr write_data_fn,
- png_flush_ptr output_flush_fn);
-
- voidp read_io_ptr = png_get_io_ptr(read_ptr);
- voidp write_io_ptr = png_get_io_ptr(write_ptr);
-
-The replacement I/O functions must have prototypes as follows:
-
- void user_read_data(png_structp png_ptr,
- png_bytep data, size_t length);
-
- void user_write_data(png_structp png_ptr,
- png_bytep data, size_t length);
-
- void user_flush_data(png_structp png_ptr);
-
-The user_read_data() function is responsible for detecting and
-handling end-of-data errors.
-
-Supplying NULL for the read, write, or flush functions sets them back
-to using the default C stream functions, which expect the io_ptr to
-point to a standard *FILE structure. It is probably a mistake
-to use NULL for one of write_data_fn and output_flush_fn but not both
-of them, unless you have built libpng with PNG_NO_WRITE_FLUSH defined.
-It is an error to read from a write stream, and vice versa.
-
-Error handling in libpng is done through png_error() and png_warning().
-Errors handled through png_error() are fatal, meaning that png_error()
-should never return to its caller. Currently, this is handled via
-setjmp() and longjmp() (unless you have compiled libpng with
-PNG_NO_SETJMP, in which case it is handled via PNG_ABORT()),
-but you could change this to do things like exit() if you should wish,
-as long as your function does not return.
-
-On non-fatal errors, png_warning() is called
-to print a warning message, and then control returns to the calling code.
-By default png_error() and png_warning() print a message on stderr via
-fprintf() unless the library is compiled with PNG_NO_CONSOLE_IO defined
-(because you don't want the messages) or PNG_NO_STDIO defined (because
-fprintf() isn't available). If you wish to change the behavior of the error
-functions, you will need to set up your own message callbacks. These
-functions are normally supplied at the time that the png_struct is created.
-It is also possible to redirect errors and warnings to your own replacement
-functions after png_create_*_struct() has been called by calling:
-
- png_set_error_fn(png_structp png_ptr,
- png_voidp error_ptr, png_error_ptr error_fn,
- png_error_ptr warning_fn);
-
-If NULL is supplied for either error_fn or warning_fn, then the libpng
-default function will be used, calling fprintf() and/or longjmp() if a
-problem is encountered. The replacement error functions should have
-parameters as follows:
-
- void user_error_fn(png_structp png_ptr,
- png_const_charp error_msg);
-
- void user_warning_fn(png_structp png_ptr,
- png_const_charp warning_msg);
-
-Then, within your user_error_fn or user_warning_fn, you can retrieve
-the error_ptr if you need it, by calling
-
- png_voidp error_ptr = png_get_error_ptr(png_ptr);
-
-The motivation behind using setjmp() and longjmp() is the C++ throw and
-catch exception handling methods. This makes the code much easier to write,
-as there is no need to check every return code of every function call.
-However, there are some uncertainties about the status of local variables
-after a longjmp, so the user may want to be careful about doing anything
-after setjmp returns non-zero besides returning itself. Consult your
-compiler documentation for more details. For an alternative approach, you
-may wish to use the "cexcept" facility (see https://cexcept.sourceforge.io/),
-which is illustrated in pngvalid.c and in contrib/visupng.
-
-Beginning in libpng-1.4.0, the png_set_benign_errors() API became available.
-You can use this to handle certain errors (normally handled as errors)
-as warnings.
-
- png_set_benign_errors (png_ptr, int allowed);
-
- allowed: 0: treat png_benign_error() as an error.
- 1: treat png_benign_error() as a warning.
-
-As of libpng-1.6.0, the default condition is to treat benign errors as
-warnings while reading and as errors while writing.
-
-.SS Custom chunks
-
-If you need to read or write custom chunks, you may need to get deeper
-into the libpng code. The library now has mechanisms for storing
-and writing chunks of unknown type; you can even declare callbacks
-for custom chunks. However, this may not be good enough if the
-library code itself needs to know about interactions between your
-chunk and existing `intrinsic' chunks.
-
-If you need to write a new intrinsic chunk, first read the PNG
-specification. Acquire a first level of understanding of how it works.
-Pay particular attention to the sections that describe chunk names,
-and look at how other chunks were designed, so you can do things
-similarly. Second, check out the sections of libpng that read and
-write chunks. Try to find a chunk that is similar to yours and use
-it as a template. More details can be found in the comments inside
-the code. It is best to handle private or unknown chunks in a generic method,
-via callback functions, instead of by modifying libpng functions. This
-is illustrated in pngtest.c, which uses a callback function to handle a
-private "vpAg" chunk and the new "sTER" chunk, which are both unknown to
-libpng.
-
-If you wish to write your own transformation for the data, look through
-the part of the code that does the transformations, and check out some of
-the simpler ones to get an idea of how they work. Try to find a similar
-transformation to the one you want to add and copy off of it. More details
-can be found in the comments inside the code itself.
-
-.SS Configuring for gui/windowing platforms:
-
-You will need to write new error and warning functions that use the GUI
-interface, as described previously, and set them to be the error and
-warning functions at the time that png_create_*_struct() is called,
-in order to have them available during the structure initialization.
-They can be changed later via png_set_error_fn(). On some compilers,
-you may also have to change the memory allocators (png_malloc, etc.).
-
-.SS Configuring zlib:
-
-There are special functions to configure the compression. Perhaps the
-most useful one changes the compression level, which currently uses
-input compression values in the range 0 - 9. The library normally
-uses the default compression level (Z_DEFAULT_COMPRESSION = 6). Tests
-have shown that for a large majority of images, compression values in
-the range 3-6 compress nearly as well as higher levels, and do so much
-faster. For online applications it may be desirable to have maximum speed
-(Z_BEST_SPEED = 1). With versions of zlib after v0.99, you can also
-specify no compression (Z_NO_COMPRESSION = 0), but this would create
-files larger than just storing the raw bitmap. You can specify the
-compression level by calling:
-
- #include zlib.h
- png_set_compression_level(png_ptr, level);
-
-Another useful one is to reduce the memory level used by the library.
-The memory level defaults to 8, but it can be lowered if you are
-short on memory (running DOS, for example, where you only have 640K).
-Note that the memory level does have an effect on compression; among
-other things, lower levels will result in sections of incompressible
-data being emitted in smaller stored blocks, with a correspondingly
-larger relative overhead of up to 15% in the worst case.
-
- #include zlib.h
- png_set_compression_mem_level(png_ptr, level);
-
-The other functions are for configuring zlib. They are not recommended
-for normal use and may result in writing an invalid PNG file. See
-zlib.h for more information on what these mean.
-
- #include zlib.h
- png_set_compression_strategy(png_ptr,
- strategy);
-
- png_set_compression_window_bits(png_ptr,
- window_bits);
-
- png_set_compression_method(png_ptr, method);
-
-This controls the size of the IDAT chunks (default 8192):
-
- png_set_compression_buffer_size(png_ptr, size);
-
-As of libpng version 1.5.4, additional APIs became
-available to set these separately for non-IDAT
-compressed chunks such as zTXt, iTXt, and iCCP:
-
- #include zlib.h
- #if PNG_LIBPNG_VER >= 10504
- png_set_text_compression_level(png_ptr, level);
-
- png_set_text_compression_mem_level(png_ptr, level);
-
- png_set_text_compression_strategy(png_ptr,
- strategy);
-
- png_set_text_compression_window_bits(png_ptr,
- window_bits);
-
- png_set_text_compression_method(png_ptr, method);
- #endif
-
-.SS Controlling row filtering
-
-If you want to control whether libpng uses filtering or not, which
-filters are used, and how it goes about picking row filters, you
-can call one of these functions. The selection and configuration
-of row filters can have a significant impact on the size and
-encoding speed and a somewhat lesser impact on the decoding speed
-of an image. Filtering is enabled by default for RGB and grayscale
-images (with and without alpha), but not for paletted images nor
-for any images with bit depths less than 8 bits/pixel.
-
-The 'method' parameter sets the main filtering method, which is
-currently only '0' in the PNG 1.2 specification. The 'filters'
-parameter sets which filter(s), if any, should be used for each
-scanline. Possible values are PNG_ALL_FILTERS, PNG_NO_FILTERS,
-or PNG_FAST_FILTERS to turn filtering on and off, or to turn on
-just the fast-decoding subset of filters, respectively.
-
-Individual filter types are PNG_FILTER_NONE, PNG_FILTER_SUB,
-PNG_FILTER_UP, PNG_FILTER_AVG, PNG_FILTER_PAETH, which can be bitwise
-ORed together with '|' to specify one or more filters to use.
-These filters are described in more detail in the PNG specification.
-If you intend to change the filter type during the course of writing
-the image, you should start with flags set for all of the filters
-you intend to use so that libpng can initialize its internal
-structures appropriately for all of the filter types. (Note that this
-means the first row must always be adaptively filtered, because libpng
-currently does not allocate the filter buffers until png_write_row()
-is called for the first time.)
-
- filters = PNG_NO_FILTERS;
- filters = PNG_ALL_FILTERS;
- filters = PNG_FAST_FILTERS;
-
- or
-
- filters = PNG_FILTER_NONE | PNG_FILTER_SUB |
- PNG_FILTER_UP | PNG_FILTER_AVG |
- PNG_FILTER_PAETH;
-
- png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE,
- filters);
-
- The second parameter can also be
- PNG_INTRAPIXEL_DIFFERENCING if you are
- writing a PNG to be embedded in a MNG
- datastream. This parameter must be the
- same as the value of filter_method used
- in png_set_IHDR().
-
-.SS Requesting debug printout
-
-The macro definition PNG_DEBUG can be used to request debugging
-printout. Set it to an integer value in the range 0 to 3. Higher
-numbers result in increasing amounts of debugging information. The
-information is printed to the "stderr" file, unless another file
-name is specified in the PNG_DEBUG_FILE macro definition.
-
-When PNG_DEBUG > 0, the following functions (macros) become available:
-
- png_debug(level, message)
- png_debug1(level, message, p1)
- png_debug2(level, message, p1, p2)
-
-in which "level" is compared to PNG_DEBUG to decide whether to print
-the message, "message" is the formatted string to be printed,
-and p1 and p2 are parameters that are to be embedded in the string
-according to printf-style formatting directives. For example,
-
- png_debug1(2, "foo=%d", foo);
-
-is expanded to
-
- if (PNG_DEBUG > 2)
- fprintf(PNG_DEBUG_FILE, "foo=%d\en", foo);
-
-When PNG_DEBUG is defined but is zero, the macros aren't defined, but you
-can still use PNG_DEBUG to control your own debugging:
-
- #ifdef PNG_DEBUG
- fprintf(stderr, ...
- #endif
-
-When PNG_DEBUG = 1, the macros are defined, but only png_debug statements
-having level = 0 will be printed. There aren't any such statements in
-this version of libpng, but if you insert some they will be printed.
-
-.SH VII. MNG support
-
-The MNG specification (available at http://www.libpng.org/pub/mng) allows
-certain extensions to PNG for PNG images that are embedded in MNG datastreams.
-Libpng can support some of these extensions. To enable them, use the
-png_permit_mng_features() function:
-
- feature_set = png_permit_mng_features(png_ptr, mask)
-
- mask is a png_uint_32 containing the bitwise OR of the
- features you want to enable. These include
- PNG_FLAG_MNG_EMPTY_PLTE
- PNG_FLAG_MNG_FILTER_64
- PNG_ALL_MNG_FEATURES
-
- feature_set is a png_uint_32 that is the bitwise AND of
- your mask with the set of MNG features that is
- supported by the version of libpng that you are using.
-
-It is an error to use this function when reading or writing a standalone
-PNG file with the PNG 8-byte signature. The PNG datastream must be wrapped
-in a MNG datastream. As a minimum, it must have the MNG 8-byte signature
-and the MHDR and MEND chunks. Libpng does not provide support for these
-or any other MNG chunks; your application must provide its own support for
-them. You may wish to consider using libmng (available at
-https://www.libmng.com/) instead.
-
-.SH VIII. Changes to Libpng from version 0.88
-
-It should be noted that versions of libpng later than 0.96 are not
-distributed by the original libpng author, Guy Schalnat, nor by
-Andreas Dilger, who had taken over from Guy during 1996 and 1997, and
-distributed versions 0.89 through 0.96, but rather by another member
-of the original PNG Group, Glenn Randers-Pehrson. Guy and Andreas are
-still alive and well, but they have moved on to other things.
-
-The old libpng functions png_read_init(), png_write_init(),
-png_info_init(), png_read_destroy(), and png_write_destroy() have been
-moved to PNG_INTERNAL in version 0.95 to discourage their use. These
-functions will be removed from libpng version 1.4.0.
-
-The preferred method of creating and initializing the libpng structures is
-via the png_create_read_struct(), png_create_write_struct(), and
-png_create_info_struct() because they isolate the size of the structures
-from the application, allow version error checking, and also allow the
-use of custom error handling routines during the initialization, which
-the old functions do not. The functions png_read_destroy() and
-png_write_destroy() do not actually free the memory that libpng
-allocated for these structs, but just reset the data structures, so they
-can be used instead of png_destroy_read_struct() and
-png_destroy_write_struct() if you feel there is too much system overhead
-allocating and freeing the png_struct for each image read.
-
-Setting the error callbacks via png_set_message_fn() before
-png_read_init() as was suggested in libpng-0.88 is no longer supported
-because this caused applications that do not use custom error functions
-to fail if the png_ptr was not initialized to zero. It is still possible
-to set the error callbacks AFTER png_read_init(), or to change them with
-png_set_error_fn(), which is essentially the same function, but with a new
-name to force compilation errors with applications that try to use the old
-method.
-
-Support for the sCAL, iCCP, iTXt, and sPLT chunks was added at libpng-1.0.6;
-however, iTXt support was not enabled by default.
-
-Starting with version 1.0.7, you can find out which version of the library
-you are using at run-time:
-
- png_uint_32 libpng_vn = png_access_version_number();
-
-The number libpng_vn is constructed from the major version, minor
-version with leading zero, and release number with leading zero,
-(e.g., libpng_vn for version 1.0.7 is 10007).
-
-Note that this function does not take a png_ptr, so you can call it
-before you've created one.
-
-You can also check which version of png.h you used when compiling your
-application:
-
- png_uint_32 application_vn = PNG_LIBPNG_VER;
-
-.SH IX. Changes to Libpng from version 1.0.x to 1.2.x
-
-Support for user memory management was enabled by default. To
-accomplish this, the functions png_create_read_struct_2(),
-png_create_write_struct_2(), png_set_mem_fn(), png_get_mem_ptr(),
-png_malloc_default(), and png_free_default() were added.
-
-Support for the iTXt chunk has been enabled by default as of
-version 1.2.41.
-
-Support for certain MNG features was enabled.
-
-Support for numbered error messages was added. However, we never got
-around to actually numbering the error messages. The function
-png_set_strip_error_numbers() was added (Note: the prototype for this
-function was inadvertently removed from png.h in PNG_NO_ASSEMBLER_CODE
-builds of libpng-1.2.15. It was restored in libpng-1.2.36).
-
-The png_malloc_warn() function was added at libpng-1.2.3. This issues
-a png_warning and returns NULL instead of aborting when it fails to
-acquire the requested memory allocation.
-
-Support for setting user limits on image width and height was enabled
-by default. The functions png_set_user_limits(), png_get_user_width_max(),
-and png_get_user_height_max() were added at libpng-1.2.6.
-
-The png_set_add_alpha() function was added at libpng-1.2.7.
-
-The function png_set_expand_gray_1_2_4_to_8() was added at libpng-1.2.9.
-Unlike png_set_gray_1_2_4_to_8(), the new function does not expand the
-tRNS chunk to alpha. The png_set_gray_1_2_4_to_8() function is
-deprecated.
-
-A number of macro definitions in support of runtime selection of
-assembler code features (especially Intel MMX code support) were
-added at libpng-1.2.0:
-
- PNG_ASM_FLAG_MMX_SUPPORT_COMPILED
- PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU
- PNG_ASM_FLAG_MMX_READ_COMBINE_ROW
- PNG_ASM_FLAG_MMX_READ_INTERLACE
- PNG_ASM_FLAG_MMX_READ_FILTER_SUB
- PNG_ASM_FLAG_MMX_READ_FILTER_UP
- PNG_ASM_FLAG_MMX_READ_FILTER_AVG
- PNG_ASM_FLAG_MMX_READ_FILTER_PAETH
- PNG_ASM_FLAGS_INITIALIZED
- PNG_MMX_READ_FLAGS
- PNG_MMX_FLAGS
- PNG_MMX_WRITE_FLAGS
- PNG_MMX_FLAGS
-
-We added the following functions in support of runtime
-selection of assembler code features:
-
- png_get_mmx_flagmask()
- png_set_mmx_thresholds()
- png_get_asm_flags()
- png_get_mmx_bitdepth_threshold()
- png_get_mmx_rowbytes_threshold()
- png_set_asm_flags()
-
-We replaced all of these functions with simple stubs in libpng-1.2.20,
-when the Intel assembler code was removed due to a licensing issue.
-
-These macros are deprecated:
-
- PNG_READ_TRANSFORMS_NOT_SUPPORTED
- PNG_PROGRESSIVE_READ_NOT_SUPPORTED
- PNG_NO_SEQUENTIAL_READ_SUPPORTED
- PNG_WRITE_TRANSFORMS_NOT_SUPPORTED
- PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED
- PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED
-
-They have been replaced, respectively, by:
-
- PNG_NO_READ_TRANSFORMS
- PNG_NO_PROGRESSIVE_READ
- PNG_NO_SEQUENTIAL_READ
- PNG_NO_WRITE_TRANSFORMS
- PNG_NO_READ_ANCILLARY_CHUNKS
- PNG_NO_WRITE_ANCILLARY_CHUNKS
-
-PNG_MAX_UINT was replaced with PNG_UINT_31_MAX. It has been
-deprecated since libpng-1.0.16 and libpng-1.2.6.
-
-The function
- png_check_sig(sig, num)
-was replaced with
- !png_sig_cmp(sig, 0, num)
-It has been deprecated since libpng-0.90.
-
-The function
- png_set_gray_1_2_4_to_8()
-which also expands tRNS to alpha was replaced with
- png_set_expand_gray_1_2_4_to_8()
-which does not. It has been deprecated since libpng-1.0.18 and 1.2.9.
-
-.SH X. Changes to Libpng from version 1.0.x/1.2.x to 1.4.x
-
-Private libpng prototypes and macro definitions were moved from
-png.h and pngconf.h into a new pngpriv.h header file.
-
-Functions png_set_benign_errors(), png_benign_error(), and
-png_chunk_benign_error() were added.
-
-Support for setting the maximum amount of memory that the application
-will allocate for reading chunks was added, as a security measure.
-The functions png_set_chunk_cache_max() and png_get_chunk_cache_max()
-were added to the library.
-
-We implemented support for I/O states by adding png_ptr member io_state
-and functions png_get_io_chunk_name() and png_get_io_state() in pngget.c
-
-We added PNG_TRANSFORM_GRAY_TO_RGB to the available high-level
-input transforms.
-
-Checking for and reporting of errors in the IHDR chunk is more thorough.
-
-Support for global arrays was removed, to improve thread safety.
-
-Some obsolete/deprecated macros and functions have been removed.
-
-Typecasted NULL definitions such as
- #define png_voidp_NULL (png_voidp)NULL
-were eliminated. If you used these in your application, just use
-NULL instead.
-
-The png_struct and info_struct members "trans" and "trans_values" were
-changed to "trans_alpha" and "trans_color", respectively.
-
-The obsolete, unused pnggccrd.c and pngvcrd.c files and related makefiles
-were removed.
-
-The PNG_1_0_X and PNG_1_2_X macros were eliminated.
-
-The PNG_LEGACY_SUPPORTED macro was eliminated.
-
-Many WIN32_WCE #ifdefs were removed.
-
-The functions png_read_init(info_ptr), png_write_init(info_ptr),
-png_info_init(info_ptr), png_read_destroy(), and png_write_destroy()
-have been removed. They have been deprecated since libpng-0.95.
-
-The png_permit_empty_plte() was removed. It has been deprecated
-since libpng-1.0.9. Use png_permit_mng_features() instead.
-
-We removed the obsolete stub functions png_get_mmx_flagmask(),
-png_set_mmx_thresholds(), png_get_asm_flags(),
-png_get_mmx_bitdepth_threshold(), png_get_mmx_rowbytes_threshold(),
-png_set_asm_flags(), and png_mmx_supported()
-
-We removed the obsolete png_check_sig(), png_memcpy_check(), and
-png_memset_check() functions. Instead use !png_sig_cmp(), memcpy(),
-and memset(), respectively.
-
-The function png_set_gray_1_2_4_to_8() was removed. It has been
-deprecated since libpng-1.0.18 and 1.2.9, when it was replaced with
-png_set_expand_gray_1_2_4_to_8() because the former function also
-expanded any tRNS chunk to an alpha channel.
-
-Macros for png_get_uint_16, png_get_uint_32, and png_get_int_32
-were added and are used by default instead of the corresponding
-functions. Unfortunately,
-from libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the
-function) incorrectly returned a value of type png_uint_32.
-
-We changed the prototype for png_malloc() from
- png_malloc(png_structp png_ptr, png_uint_32 size)
-to
- png_malloc(png_structp png_ptr, png_alloc_size_t size)
-
-This also applies to the prototype for the user replacement malloc_fn().
-
-The png_calloc() function was added and is used in place of
-of "png_malloc(); memset();" except in the case in png_read_png()
-where the array consists of pointers; in this case a "for" loop is used
-after the png_malloc() to set the pointers to NULL, to give robust.
-behavior in case the application runs out of memory part-way through
-the process.
-
-We changed the prototypes of png_get_compression_buffer_size() and
-png_set_compression_buffer_size() to work with size_t instead of
-png_uint_32.
-
-Support for numbered error messages was removed by default, since we
-never got around to actually numbering the error messages. The function
-png_set_strip_error_numbers() was removed from the library by default.
-
-The png_zalloc() and png_zfree() functions are no longer exported.
-The png_zalloc() function no longer zeroes out the memory that it
-allocates. Applications that called png_zalloc(png_ptr, number, size)
-can call png_calloc(png_ptr, number*size) instead, and can call
-png_free() instead of png_zfree().
-
-Support for dithering was disabled by default in libpng-1.4.0, because
-it has not been well tested and doesn't actually "dither".
-The code was not
-removed, however, and could be enabled by building libpng with
-PNG_READ_DITHER_SUPPORTED defined. In libpng-1.4.2, this support
-was re-enabled, but the function was renamed png_set_quantize() to
-reflect more accurately what it actually does. At the same time,
-the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros were also renamed to
-PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS, and PNG_READ_DITHER_SUPPORTED
-was renamed to PNG_READ_QUANTIZE_SUPPORTED.
-
-We removed the trailing '.' from the warning and error messages.
-
-.SH XI. Changes to Libpng from version 1.4.x to 1.5.x
-
-From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the
-function) incorrectly returned a value of type png_uint_32.
-The incorrect macro was removed from libpng-1.4.5.
-
-Checking for invalid palette index on write was added at libpng
-1.5.10. If a pixel contains an invalid (out-of-range) index libpng issues
-a benign error. This is enabled by default because this condition is an
-error according to the PNG specification, Clause 11.3.2, but the error can
-be ignored in each png_ptr with
-
- png_set_check_for_invalid_index(png_ptr, allowed);
-
- allowed - one of
- 0: disable benign error (accept the
- invalid data without warning).
- 1: enable benign error (treat the
- invalid data as an error or a
- warning).
-
-If the error is ignored, or if png_benign_error() treats it as a warning,
-any invalid pixels are decoded as opaque black by the decoder and written
-as-is by the encoder.
-
-Retrieving the maximum palette index found was added at libpng-1.5.15.
-This statement must appear after png_read_png() or png_read_image() while
-reading, and after png_write_png() or png_write_image() while writing.
-
- int max_palette = png_get_palette_max(png_ptr, info_ptr);
-
-This will return the maximum palette index found in the image, or "\-1" if
-the palette was not checked, or "0" if no palette was found. Note that this
-does not account for any palette index used by ancillary chunks such as the
-bKGD chunk; you must check those separately to determine the maximum
-palette index actually used.
-
-There are no substantial API changes between the non-deprecated parts of
-the 1.4.5 API and the 1.5.0 API; however, the ability to directly access
-members of the main libpng control structures, png_struct and png_info,
-deprecated in earlier versions of libpng, has been completely removed from
-libpng 1.5, and new private "pngstruct.h", "pnginfo.h", and "pngdebug.h"
-header files were created.
-
-We no longer include zlib.h in png.h. The include statement has been moved
-to pngstruct.h, where it is not accessible by applications. Applications that
-need access to information in zlib.h will need to add the '#include "zlib.h"'
-directive. It does not matter whether this is placed prior to or after
-the '"#include png.h"' directive.
-
-The png_sprintf(), png_strcpy(), and png_strncpy() macros are no longer used
-and were removed.
-
-We moved the png_strlen(), png_memcpy(), png_memset(), and png_memcmp()
-macros into a private header file (pngpriv.h) that is not accessible to
-applications.
-
-In png_get_iCCP, the type of "profile" was changed from png_charpp
-to png_bytepp, and in png_set_iCCP, from png_charp to png_const_bytep.
-
-There are changes of form in png.h, including new and changed macros to
-declare parts of the API. Some API functions with arguments that are
-pointers to data not modified within the function have been corrected to
-declare these arguments with const.
-
-Much of the internal use of C macros to control the library build has also
-changed and some of this is visible in the exported header files, in
-particular the use of macros to control data and API elements visible
-during application compilation may require significant revision to
-application code. (It is extremely rare for an application to do this.)
-
-Any program that compiled against libpng 1.4 and did not use deprecated
-features or access internal library structures should compile and work
-against libpng 1.5, except for the change in the prototype for
-png_get_iCCP() and png_set_iCCP() API functions mentioned above.
-
-libpng 1.5.0 adds PNG_ PASS macros to help in the reading and writing of
-interlaced images. The macros return the number of rows and columns in
-each pass and information that can be used to de-interlace and (if
-absolutely necessary) interlace an image.
-
-libpng 1.5.0 adds an API png_longjmp(png_ptr, value). This API calls
-the application-provided png_longjmp_ptr on the internal, but application
-initialized, longjmp buffer. It is provided as a convenience to avoid
-the need to use the png_jmpbuf macro, which had the unnecessary side
-effect of resetting the internal png_longjmp_ptr value.
-
-libpng 1.5.0 includes a complete fixed point API. By default this is
-present along with the corresponding floating point API. In general the
-fixed point API is faster and smaller than the floating point one because
-the PNG file format used fixed point, not floating point. This applies
-even if the library uses floating point in internal calculations. A new
-macro, PNG_FLOATING_ARITHMETIC_SUPPORTED, reveals whether the library
-uses floating point arithmetic (the default) or fixed point arithmetic
-internally for performance critical calculations such as gamma correction.
-In some cases, the gamma calculations may produce slightly different
-results. This has changed the results in png_rgb_to_gray and in alpha
-composition (png_set_background for example). This applies even if the
-original image was already linear (gamma == 1.0) and, therefore, it is
-not necessary to linearize the image. This is because libpng has *not*
-been changed to optimize that case correctly, yet.
-
-Fixed point support for the sCAL chunk comes with an important caveat;
-the sCAL specification uses a decimal encoding of floating point values
-and the accuracy of PNG fixed point values is insufficient for
-representation of these values. Consequently a "string" API
-(png_get_sCAL_s and png_set_sCAL_s) is the only reliable way of reading
-arbitrary sCAL chunks in the absence of either the floating point API or
-internal floating point calculations. Starting with libpng-1.5.0, both
-of these functions are present when PNG_sCAL_SUPPORTED is defined. Prior
-to libpng-1.5.0, their presence also depended upon PNG_FIXED_POINT_SUPPORTED
-being defined and PNG_FLOATING_POINT_SUPPORTED not being defined.
-
-Applications no longer need to include the optional distribution header
-file pngusr.h or define the corresponding macros during application
-build in order to see the correct variant of the libpng API. From 1.5.0
-application code can check for the corresponding _SUPPORTED macro:
-
-#ifdef PNG_INCH_CONVERSIONS_SUPPORTED
- /* code that uses the inch conversion APIs. */
-#endif
-
-This macro will only be defined if the inch conversion functions have been
-compiled into libpng. The full set of macros, and whether or not support
-has been compiled in, are available in the header file pnglibconf.h.
-This header file is specific to the libpng build. Notice that prior to
-1.5.0 the _SUPPORTED macros would always have the default definition unless
-reset by pngusr.h or by explicit settings on the compiler command line.
-These settings may produce compiler warnings or errors in 1.5.0 because
-of macro redefinition.
-
-Applications can now choose whether to use these macros or to call the
-corresponding function by defining PNG_USE_READ_MACROS or
-PNG_NO_USE_READ_MACROS before including png.h. Notice that this is
-only supported from 1.5.0; defining PNG_NO_USE_READ_MACROS prior to 1.5.0
-will lead to a link failure.
-
-Prior to libpng-1.5.4, the zlib compressor used the same set of parameters
-when compressing the IDAT data and textual data such as zTXt and iCCP.
-In libpng-1.5.4 we reinitialized the zlib stream for each type of data.
-We added five png_set_text_*() functions for setting the parameters to
-use with textual data.
-
-Prior to libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
-option was off by default, and slightly inaccurate scaling occurred.
-This option can no longer be turned off, and the choice of accurate
-or inaccurate 16-to-8 scaling is by using the new png_set_scale_16_to_8()
-API for accurate scaling or the old png_set_strip_16_to_8() API for simple
-chopping. In libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
-macro became PNG_READ_SCALE_16_TO_8_SUPPORTED, and the PNG_READ_16_TO_8
-macro became PNG_READ_STRIP_16_TO_8_SUPPORTED, to enable the two
-png_set_*_16_to_8() functions separately.
-
-Prior to libpng-1.5.4, the png_set_user_limits() function could only be
-used to reduce the width and height limits from the value of
-PNG_USER_WIDTH_MAX and PNG_USER_HEIGHT_MAX, although this document said
-that it could be used to override them. Now this function will reduce or
-increase the limits.
-
-Starting in libpng-1.5.22, default user limits were established. These
-can be overridden by application calls to png_set_user_limits(),
-png_set_user_chunk_cache_max(), and/or png_set_user_malloc_max().
-The limits are now
- max possible default
- png_user_width_max 0x7fffffff 1,000,000
- png_user_height_max 0x7fffffff 1,000,000
- png_user_chunk_cache_max 0 (unlimited) 1000
- png_user_chunk_malloc_max 0 (unlimited) 8,000,000
-
-The png_set_option() function (and the "options" member of the png struct) was
-added to libpng-1.5.15, with option PNG_ARM_NEON.
-
-The library now supports a complete fixed point implementation and can
-thus be used on systems that have no floating point support or very
-limited or slow support. Previously gamma correction, an essential part
-of complete PNG support, required reasonably fast floating point.
-
-As part of this the choice of internal implementation has been made
-independent of the choice of fixed versus floating point APIs and all the
-missing fixed point APIs have been implemented.
-
-The exact mechanism used to control attributes of API functions has
-changed, as described in the INSTALL file.
-
-A new test program, pngvalid, is provided in addition to pngtest.
-pngvalid validates the arithmetic accuracy of the gamma correction
-calculations and includes a number of validations of the file format.
-A subset of the full range of tests is run when "make check" is done
-(in the 'configure' build.) pngvalid also allows total allocated memory
-usage to be evaluated and performs additional memory overwrite validation.
-
-Many changes to individual feature macros have been made. The following
-are the changes most likely to be noticed by library builders who
-configure libpng:
-
-1) All feature macros now have consistent naming:
-
-#define PNG_NO_feature turns the feature off
-#define PNG_feature_SUPPORTED turns the feature on
-
-pnglibconf.h contains one line for each feature macro which is either:
-
-#define PNG_feature_SUPPORTED
-
-if the feature is supported or:
-
-/*#undef PNG_feature_SUPPORTED*/
-
-if it is not. Library code consistently checks for the 'SUPPORTED' macro.
-It does not, and libpng applications should not, check for the 'NO' macro
-which will not normally be defined even if the feature is not supported.
-The 'NO' macros are only used internally for setting or not setting the
-corresponding 'SUPPORTED' macros.
-
-Compatibility with the old names is provided as follows:
-
-PNG_INCH_CONVERSIONS turns on PNG_INCH_CONVERSIONS_SUPPORTED
-
-And the following definitions disable the corresponding feature:
-
-PNG_SETJMP_NOT_SUPPORTED disables SETJMP
-PNG_READ_TRANSFORMS_NOT_SUPPORTED disables READ_TRANSFORMS
-PNG_NO_READ_COMPOSITED_NODIV disables READ_COMPOSITE_NODIV
-PNG_WRITE_TRANSFORMS_NOT_SUPPORTED disables WRITE_TRANSFORMS
-PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED disables READ_ANCILLARY_CHUNKS
-PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED disables WRITE_ANCILLARY_CHUNKS
-
-Library builders should remove use of the above, inconsistent, names.
-
-2) Warning and error message formatting was previously conditional on
-the STDIO feature. The library has been changed to use the
-CONSOLE_IO feature instead. This means that if CONSOLE_IO is disabled
-the library no longer uses the printf(3) functions, even though the
-default read/write implementations use (FILE) style stdio.h functions.
-
-3) Three feature macros now control the fixed/floating point decisions:
-
-PNG_FLOATING_POINT_SUPPORTED enables the floating point APIs
-
-PNG_FIXED_POINT_SUPPORTED enables the fixed point APIs; however, in
-practice these are normally required internally anyway (because the PNG
-file format is fixed point), therefore in most cases PNG_NO_FIXED_POINT
-merely stops the function from being exported.
-
-PNG_FLOATING_ARITHMETIC_SUPPORTED chooses between the internal floating
-point implementation or the fixed point one. Typically the fixed point
-implementation is larger and slower than the floating point implementation
-on a system that supports floating point; however, it may be faster on a
-system which lacks floating point hardware and therefore uses a software
-emulation.
-
-4) Added PNG_{READ,WRITE}_INT_FUNCTIONS_SUPPORTED. This allows the
-functions to read and write ints to be disabled independently of
-PNG_USE_READ_MACROS, which allows libpng to be built with the functions
-even though the default is to use the macros - this allows applications
-to choose at app buildtime whether or not to use macros (previously
-impossible because the functions weren't in the default build.)
-
-.SH XII. Changes to Libpng from version 1.5.x to 1.6.x
-
-A "simplified API" has been added (see documentation in png.h and a simple
-example in contrib/examples/pngtopng.c). The new publicly visible API
-includes the following:
-
- macros:
- PNG_FORMAT_*
- PNG_IMAGE_*
- structures:
- png_control
- png_image
- read functions
- png_image_begin_read_from_file()
- png_image_begin_read_from_stdio()
- png_image_begin_read_from_memory()
- png_image_finish_read()
- png_image_free()
- write functions
- png_image_write_to_file()
- png_image_write_to_memory()
- png_image_write_to_stdio()
-
-Starting with libpng-1.6.0, you can configure libpng to prefix all exported
-symbols, using the PNG_PREFIX macro.
-
-We no longer include string.h in png.h. The include statement has been moved
-to pngpriv.h, where it is not accessible by applications. Applications that
-need access to information in string.h must add an '#include <string.h>'
-directive. It does not matter whether this is placed prior to or after
-the '#include "png.h"' directive.
-
-The following API are now DEPRECATED:
- png_info_init_3()
- png_convert_to_rfc1123() which has been replaced
- with png_convert_to_rfc1123_buffer()
- png_malloc_default()
- png_free_default()
- png_reset_zstream()
-
-The following have been removed:
- png_get_io_chunk_name(), which has been replaced
- with png_get_io_chunk_type(). The new
- function returns a 32-bit integer instead of
- a string.
- The png_sizeof(), png_strlen(), png_memcpy(), png_memcmp(), and
- png_memset() macros are no longer used in the libpng sources and
- have been removed. These had already been made invisible to applications
- (i.e., defined in the private pngpriv.h header file) since libpng-1.5.0.
-
-The signatures of many exported functions were changed, such that
- png_structp became png_structrp or png_const_structrp
- png_infop became png_inforp or png_const_inforp
-where "rp" indicates a "restricted pointer".
-
-Dropped support for 16-bit platforms. The support for FAR/far types has
-been eliminated and the definition of png_alloc_size_t is now controlled
-by a flag so that 'small size_t' systems can select it if necessary.
-
-Error detection in some chunks has improved; in particular the iCCP chunk
-reader now does pretty complete validation of the basic format. Some bad
-profiles that were previously accepted are now accepted with a warning or
-rejected, depending upon the png_set_benign_errors() setting, in particular
-the very old broken Microsoft/HP 3144-byte sRGB profile. Starting with
-libpng-1.6.11, recognizing and checking sRGB profiles can be avoided by
-means of
-
- #if defined(PNG_SKIP_sRGB_CHECK_PROFILE) && \
- defined(PNG_SET_OPTION_SUPPORTED)
- png_set_option(png_ptr, PNG_SKIP_sRGB_CHECK_PROFILE,
- PNG_OPTION_ON);
- #endif
-
-It's not a good idea to do this if you are using the "simplified API",
-which needs to be able to recognize sRGB profiles conveyed via the iCCP
-chunk.
-
-The PNG spec requirement that only grayscale profiles may appear in images
-with color type 0 or 4 and that even if the image only contains gray pixels,
-only RGB profiles may appear in images with color type 2, 3, or 6, is now
-enforced. The sRGB chunk is allowed to appear in images with any color type
-and is interpreted by libpng to convey a one-tracer-curve gray profile or a
-three-tracer-curve RGB profile as appropriate.
-
-Libpng 1.5.x erroneously used /MD for Debug DLL builds; if you used the debug
-builds in your app and you changed your app to use /MD you will need to
-change it back to /MDd for libpng 1.6.x.
-
-Prior to libpng-1.6.0 a warning would be issued if the iTXt chunk contained
-an empty language field or an empty translated keyword. Both of these
-are allowed by the PNG specification, so these warnings are no longer issued.
-
-The library now issues an error if the application attempts to set a
-transform after it calls png_read_update_info() or if it attempts to call
-both png_read_update_info() and png_start_read_image() or to call either
-of them more than once.
-
-The default condition for benign_errors is now to treat benign errors as
-warnings while reading and as errors while writing.
-
-The library now issues a warning if both background processing and RGB to
-gray are used when gamma correction happens. As with previous versions of
-the library the results are numerically very incorrect in this case.
-
-There are some minor arithmetic changes in some transforms such as
-png_set_background(), that might be detected by certain regression tests.
-
-Unknown chunk handling has been improved internally, without any API change.
-This adds more correct option control of the unknown handling, corrects
-a pre-existing bug where the per-chunk 'keep' setting is ignored, and makes
-it possible to skip IDAT chunks in the sequential reader.
-
-The machine-generated configure files are no longer included in branches
-libpng16 and later of the GIT repository. They continue to be included
-in the tarball releases, however.
-
-Libpng-1.6.0 through 1.6.2 used the CMF bytes at the beginning of the IDAT
-stream to set the size of the sliding window for reading instead of using the
-default 32-kbyte sliding window size. It was discovered that there are
-hundreds of PNG files in the wild that have incorrect CMF bytes that caused
-zlib to issue the "invalid distance too far back" error and reject the file.
-Libpng-1.6.3 and later calculate their own safe CMF from the image dimensions,
-provide a way to revert to the libpng-1.5.x behavior (ignoring the CMF bytes
-and using a 32-kbyte sliding window), by using
-
- png_set_option(png_ptr, PNG_MAXIMUM_INFLATE_WINDOW,
- PNG_OPTION_ON);
-
-and provide a tool (contrib/tools/pngfix) for rewriting a PNG file while
-optimizing the CMF bytes in its IDAT chunk correctly.
-
-Libpng-1.6.0 and libpng-1.6.1 wrote uncompressed iTXt chunks with the wrong
-length, which resulted in PNG files that cannot be read beyond the bad iTXt
-chunk. This error was fixed in libpng-1.6.3, and a tool (called
-contrib/tools/png-fix-itxt) has been added to the libpng distribution.
-
-Starting with libpng-1.6.17, the PNG_SAFE_LIMITS macro was eliminated
-and safe limits are used by default (users who need larger limits
-can still override them at compile time or run time, as described above).
-
-The new limits are
- default spec limit
- png_user_width_max 1,000,000 2,147,483,647
- png_user_height_max 1,000,000 2,147,483,647
- png_user_chunk_cache_max 128 unlimited
- png_user_chunk_malloc_max 8,000,000 unlimited
-
-Starting with libpng-1.6.18, a PNG_RELEASE_BUILD macro was added, which allows
-library builders to control compilation for an installed system (a release build).
-It can be set for testing debug or beta builds to ensure that they will compile
-when the build type is switched to RC or STABLE. In essence this overrides the
-PNG_LIBPNG_BUILD_BASE_TYPE definition which is not directly user controllable.
-
-Starting with libpng-1.6.19, attempting to set an over-length PLTE chunk
-is an error. Previously this requirement of the PNG specification was not
-enforced, and the palette was always limited to 256 entries. An over-length
-PLTE chunk found in an input PNG is silently truncated.
-
-Starting with libpng-1.6.31, the eXIf chunk is supported. Libpng does not
-attempt to decode the Exif profile; it simply returns a byte array
-containing the profile to the calling application which must do its own
-decoding.
-
-.SH XIII. Detecting libpng
-
-The png_get_io_ptr() function has been present since libpng-0.88, has never
-changed, and is unaffected by conditional compilation macros. It is the
-best choice for use in configure scripts for detecting the presence of any
-libpng version since 0.88. In an autoconf "configure.in" you could use
-
- AC_CHECK_LIB(png, png_get_io_ptr, ...
-
-.SH XV. Source code repository
-
-Since about February 2009, version 1.2.34, libpng has been under "git" source
-control. The git repository was built from old libpng-x.y.z.tar.gz files
-going back to version 0.70. You can access the git repository (read only)
-at
-
- https://github.com/glennrp/libpng or
- https://git.code.sf.net/p/libpng/code.git
-
-or you can browse it with a web browser at
-
- https://github.com/glennrp/libpng or
- https://sourceforge.net/p/libpng/code/ci/libpng16/tree/
-
-Patches can be sent to png-mng-implement at lists.sourceforge.net or
-uploaded to the libpng bug tracker at
-
- https://libpng.sourceforge.io/
-
-or as a "pull request" to
-
- https://github.com/glennrp/libpng/pulls
-
-We also accept patches built from the tar or zip distributions, and
-simple verbal descriptions of bug fixes, reported either to the
-SourceForge bug tracker, to the png-mng-implement at lists.sf.net
-mailing list, as github issues.
-
-.SH XV. Coding style
-
-Our coding style is similar to the "Allman" style
-(See https://en.wikipedia.org/wiki/Indent_style#Allman_style), with curly
-braces on separate lines:
-
- if (condition)
- {
- action;
- }
-
- else if (another condition)
- {
- another action;
- }
-
-The braces can be omitted from simple one-line actions:
-
- if (condition)
- return 0;
-
-We use 3-space indentation, except for continued statements which
-are usually indented the same as the first line of the statement
-plus four more spaces.
-
-For macro definitions we use 2-space indentation, always leaving the "#"
-in the first column.
-
- #ifndef PNG_NO_FEATURE
- # ifndef PNG_FEATURE_SUPPORTED
- # define PNG_FEATURE_SUPPORTED
- # endif
- #endif
-
-Comments appear with the leading "/*" at the same indentation as
-the statement that follows the comment:
-
- /* Single-line comment */
- statement;
-
- /* This is a multiple-line
- * comment.
- */
- statement;
-
-Very short comments can be placed after the end of the statement
-to which they pertain:
-
- statement; /* comment */
-
-We don't use C++ style ("//") comments. We have, however,
-used them in the past in some now-abandoned MMX assembler
-code.
-
-Functions and their curly braces are not indented, and
-exported functions are marked with PNGAPI:
-
- /* This is a public function that is visible to
- * application programmers. It does thus-and-so.
- */
- void PNGAPI
- png_exported_function(png_ptr, png_info, foo)
- {
- body;
- }
-
-The return type and decorations are placed on a separate line
-ahead of the function name, as illustrated above.
-
-The prototypes for all exported functions appear in png.h,
-above the comment that says
-
- /* Maintainer: Put new public prototypes here ... */
-
-We mark all non-exported functions with "/* PRIVATE */"":
-
- void /* PRIVATE */
- png_non_exported_function(png_ptr, png_info, foo)
- {
- body;
- }
-
-The prototypes for non-exported functions (except for those in
-pngtest) appear in pngpriv.h above the comment that says
-
- /* Maintainer: Put new private prototypes here ^ */
-
-To avoid polluting the global namespace, the names of all exported
-functions and variables begin with "png_", and all publicly visible C
-preprocessor macros begin with "PNG". We request that applications that
-use libpng *not* begin any of their own symbols with either of these strings.
-
-We put a space after the "sizeof" operator and we omit the
-optional parentheses around its argument when the argument
-is an expression, not a type name, and we always enclose the
-sizeof operator, with its argument, in parentheses:
-
- (sizeof (png_uint_32))
- (sizeof array)
-
-Prior to libpng-1.6.0 we used a "png_sizeof()" macro, formatted as
-though it were a function.
-
-Control keywords if, for, while, and switch are always followed by a space
-to distinguish them from function calls, which have no trailing space.
-
-We put a space after each comma and after each semicolon
-in "for" statements, and we put spaces before and after each
-C binary operator and after "for" or "while", and before
-"?". We don't put a space between a typecast and the expression
-being cast, nor do we put one between a function name and the
-left parenthesis that follows it:
-
- for (i = 2; i > 0; \-\-i)
- y[i] = a(x) + (int)b;
-
-We prefer #ifdef and #ifndef to #if defined() and #if !defined()
-when there is only one macro being tested. We always use parentheses
-with "defined".
-
-We express integer constants that are used as bit masks in hex format,
-with an even number of lower-case hex digits, and to make them unsigned
-(e.g., 0x00U, 0xffU, 0x0100U) and long if they are greater than 0x7fff
-(e.g., 0xffffUL).
-
-We prefer to use underscores rather than camelCase in names, except
-for a few type names that we inherit from zlib.h.
-
-We prefer "if (something != 0)" and "if (something == 0)" over
-"if (something)" and if "(!something)", respectively, and for pointers
-we prefer "if (some_pointer != NULL)" or "if (some_pointer == NULL)".
-
-We do not use the TAB character for indentation in the C sources.
-
-Lines do not exceed 80 characters.
-
-Other rules can be inferred by inspecting the libpng source.
-
-.SH NOTE
-
-Note about libpng version numbers:
-
-Due to various miscommunications, unforeseen code incompatibilities
-and occasional factors outside the authors' control, version numbering
-on the library has not always been consistent and straightforward.
-The following table summarizes matters since version 0.89c, which was
-the first widely used release:
-
- source png.h png.h shared-lib
- version string int version
- ------- ------ ----- ----------
- 0.89c "1.0 beta 3" 0.89 89 1.0.89
- 0.90 "1.0 beta 4" 0.90 90 0.90 [should have been 2.0.90]
- 0.95 "1.0 beta 5" 0.95 95 0.95 [should have been 2.0.95]
- 0.96 "1.0 beta 6" 0.96 96 0.96 [should have been 2.0.96]
- 0.97b "1.00.97 beta 7" 1.00.97 97 1.0.1 [should have been 2.0.97]
- 0.97c 0.97 97 2.0.97
- 0.98 0.98 98 2.0.98
- 0.99 0.99 98 2.0.99
- 0.99a-m 0.99 99 2.0.99
- 1.00 1.00 100 2.1.0 [100 should be 10000]
- 1.0.0 (from here on, the 100 2.1.0 [100 should be 10000]
- 1.0.1 png.h string is 10001 2.1.0
- 1.0.1a-e identical to the 10002 from here on, the shared library
- 1.0.2 source version) 10002 is 2.V where V is the source code
- 1.0.2a-b 10003 version, except as noted.
- 1.0.3 10003
- 1.0.3a-d 10004
- 1.0.4 10004
- 1.0.4a-f 10005
- 1.0.5 (+ 2 patches) 10005
- 1.0.5a-d 10006
- 1.0.5e-r 10100 (not source compatible)
- 1.0.5s-v 10006 (not binary compatible)
- 1.0.6 (+ 3 patches) 10006 (still binary incompatible)
- 1.0.6d-f 10007 (still binary incompatible)
- 1.0.6g 10007
- 1.0.6h 10007 10.6h (testing xy.z so-numbering)
- 1.0.6i 10007 10.6i
- 1.0.6j 10007 2.1.0.6j (incompatible with 1.0.0)
- 1.0.7beta11-14 DLLNUM 10007 2.1.0.7beta11-14 (binary compatible)
- 1.0.7beta15-18 1 10007 2.1.0.7beta15-18 (binary compatible)
- 1.0.7rc1-2 1 10007 2.1.0.7rc1-2 (binary compatible)
- 1.0.7 1 10007 (still compatible)
- ...
- 1.0.69 10 10069 10.so.0.69[.0]
- ...
- 1.2.59 13 10259 12.so.0.59[.0]
- ...
- 1.4.20 14 10420 14.so.0.20[.0]
- ...
- 1.5.30 15 10530 15.so.15.30[.0]
- ...
- 1.6.35 16 10635 16.so.16.35[.0]
-
-Henceforth the source version will match the shared-library minor and
-patch numbers; the shared-library major version number will be used for
-changes in backward compatibility, as it is intended.
-The PNG_PNGLIB_VER macro, which is not used within libpng but is
-available for applications, is an unsigned integer of the form XYYZZ
-corresponding to the source version X.Y.Z (leading zeros in Y and Z).
-Beta versions were given the previous public release number plus a
-letter, until version 1.0.6j; from then on they were given the upcoming
-public release number plus "betaNN" or "rcNN".
-
-.SH "SEE ALSO"
-.IR libpngpf(3) ", " png(5)
-.LP
-.IR libpng :
-.IP
-https://libpng.sourceforge.io/ (follow the [DOWNLOAD] link)
-http://www.libpng.org/pub/png
-
-.LP
-.IR zlib :
-.IP
-(generally) at the same location as
-.I libpng
-or at
-.br
-https://zlib.net/
-
-.LP
-.IR PNG specification: RFC 2083
-.IP
-(generally) at the same location as
-.I libpng
-or at
-.br
-https://www.ietf.org/rfc/rfc2083.txt
-.br
-or (as a W3C Recommendation) at
-.br
-https://www.w3.org/TR/REC-png.html
-
-.LP
-In the case of any inconsistency between the PNG specification
-and this library, the specification takes precedence.
-
-.SH AUTHORS
-This man page:
-Initially created by Glenn Randers-Pehrson.
-Maintained by Cosmin Truta.
-
-The contributing authors would like to thank all those who helped
-with testing, bug fixes, and patience. This wouldn't have been
-possible without all of you.
-
-Thanks to Frank J. T. Wojcik for helping with the documentation.
-
-Libpng:
-Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
-Maintained by Cosmin Truta.
-
-Supported by the PNG development group
-.br
-png-mng-implement at lists.sourceforge.net (subscription required; visit
-https://lists.sourceforge.net/lists/listinfo/png-mng-implement
-to subscribe).
-
-.\" end of man page
diff --git a/3rdparty/libpng/libpng-1.6.37/libpng.pc b/3rdparty/libpng/libpng-1.6.37/libpng.pc
deleted file mode 100644
index 5269c6e..0000000
--- a/3rdparty/libpng/libpng-1.6.37/libpng.pc
+++ /dev/null
@@ -1,12 +0,0 @@
-prefix=/home/guowenxue/fl2440/3rdparty/libpng/../install
-exec_prefix=${prefix}
-libdir=${exec_prefix}/lib
-includedir=${prefix}/include/libpng16
-
-Name: libpng
-Description: Loads and saves PNG files
-Version: 1.6.37
-Requires: zlib
-Libs: -L${libdir} -lpng16
-Libs.private: -lm -lz -lm
-Cflags: -I${includedir}
diff --git a/3rdparty/libpng/libpng-1.6.37/libpng.pc.in b/3rdparty/libpng/libpng-1.6.37/libpng.pc.in
deleted file mode 100644
index 9708e9a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/libpng.pc.in
+++ /dev/null
@@ -1,12 +0,0 @@
-prefix=@prefix@
-exec_prefix=@exec_prefix@
-libdir=@libdir@
-includedir=@includedir@/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
-
-Name: libpng
-Description: Loads and saves PNG files
-Version: @PNGLIB_VERSION@
-Requires: zlib
-Libs: -L${libdir} -lpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
-Libs.private: @LIBS@
-Cflags: -I${includedir}
diff --git a/3rdparty/libpng/libpng-1.6.37/libpng.vers b/3rdparty/libpng/libpng-1.6.37/libpng.vers
deleted file mode 100644
index 9580cb1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/libpng.vers
+++ /dev/null
@@ -1,248 +0,0 @@
-PNG16_0 {global:
- png_access_version_number;
- png_set_sig_bytes;
- png_sig_cmp;
- png_create_read_struct;
- png_create_write_struct;
- png_get_compression_buffer_size;
- png_set_compression_buffer_size;
- png_set_longjmp_fn;
- png_longjmp;
- png_reset_zstream;
- png_create_read_struct_2;
- png_create_write_struct_2;
- png_write_sig;
- png_write_chunk;
- png_write_chunk_start;
- png_write_chunk_data;
- png_write_chunk_end;
- png_create_info_struct;
- png_info_init_3;
- png_write_info_before_PLTE;
- png_write_info;
- png_read_info;
- png_convert_to_rfc1123;
- png_convert_to_rfc1123_buffer;
- png_convert_from_struct_tm;
- png_convert_from_time_t;
- png_set_expand;
- png_set_expand_gray_1_2_4_to_8;
- png_set_palette_to_rgb;
- png_set_tRNS_to_alpha;
- png_set_expand_16;
- png_set_bgr;
- png_set_gray_to_rgb;
- png_set_rgb_to_gray;
- png_set_rgb_to_gray_fixed;
- png_get_rgb_to_gray_status;
- png_build_grayscale_palette;
- png_set_alpha_mode;
- png_set_alpha_mode_fixed;
- png_set_strip_alpha;
- png_set_swap_alpha;
- png_set_invert_alpha;
- png_set_filler;
- png_set_add_alpha;
- png_set_swap;
- png_set_packing;
- png_set_packswap;
- png_set_shift;
- png_set_interlace_handling;
- png_set_invert_mono;
- png_set_background;
- png_set_background_fixed;
- png_set_scale_16;
- png_set_strip_16;
- png_set_quantize;
- png_set_gamma;
- png_set_gamma_fixed;
- png_set_flush;
- png_write_flush;
- png_start_read_image;
- png_read_update_info;
- png_read_rows;
- png_read_row;
- png_read_image;
- png_write_row;
- png_write_rows;
- png_write_image;
- png_write_end;
- png_read_end;
- png_destroy_info_struct;
- png_destroy_read_struct;
- png_destroy_write_struct;
- png_set_crc_action;
- png_set_filter;
- png_set_filter_heuristics;
- png_set_filter_heuristics_fixed;
- png_set_compression_level;
- png_set_compression_mem_level;
- png_set_compression_strategy;
- png_set_compression_window_bits;
- png_set_compression_method;
- png_set_text_compression_level;
- png_set_text_compression_mem_level;
- png_set_text_compression_strategy;
- png_set_text_compression_window_bits;
- png_set_text_compression_method;
- png_init_io;
- png_set_error_fn;
- png_get_error_ptr;
- png_set_write_fn;
- png_set_read_fn;
- png_get_io_ptr;
- png_set_read_status_fn;
- png_set_write_status_fn;
- png_set_mem_fn;
- png_get_mem_ptr;
- png_set_read_user_transform_fn;
- png_set_write_user_transform_fn;
- png_set_user_transform_info;
- png_get_user_transform_ptr;
- png_get_current_row_number;
- png_get_current_pass_number;
- png_set_read_user_chunk_fn;
- png_get_user_chunk_ptr;
- png_set_progressive_read_fn;
- png_get_progressive_ptr;
- png_process_data;
- png_process_data_pause;
- png_process_data_skip;
- png_progressive_combine_row;
- png_malloc;
- png_calloc;
- png_malloc_warn;
- png_free;
- png_free_data;
- png_data_freer;
- png_malloc_default;
- png_free_default;
- png_error;
- png_chunk_error;
- png_warning;
- png_chunk_warning;
- png_benign_error;
- png_chunk_benign_error;
- png_set_benign_errors;
- png_get_valid;
- png_get_rowbytes;
- png_get_rows;
- png_set_rows;
- png_get_channels;
- png_get_image_width;
- png_get_image_height;
- png_get_bit_depth;
- png_get_color_type;
- png_get_filter_type;
- png_get_interlace_type;
- png_get_compression_type;
- png_get_pixels_per_meter;
- png_get_x_pixels_per_meter;
- png_get_y_pixels_per_meter;
- png_get_pixel_aspect_ratio;
- png_get_pixel_aspect_ratio_fixed;
- png_get_x_offset_pixels;
- png_get_y_offset_pixels;
- png_get_x_offset_microns;
- png_get_y_offset_microns;
- png_get_signature;
- png_get_bKGD;
- png_set_bKGD;
- png_get_cHRM;
- png_get_cHRM_XYZ;
- png_get_cHRM_fixed;
- png_get_cHRM_XYZ_fixed;
- png_set_cHRM;
- png_set_cHRM_XYZ;
- png_set_cHRM_fixed;
- png_set_cHRM_XYZ_fixed;
- png_get_eXIf;
- png_set_eXIf;
- png_get_eXIf_1;
- png_set_eXIf_1;
- png_get_gAMA;
- png_get_gAMA_fixed;
- png_set_gAMA;
- png_set_gAMA_fixed;
- png_get_hIST;
- png_set_hIST;
- png_get_IHDR;
- png_set_IHDR;
- png_get_oFFs;
- png_set_oFFs;
- png_get_pCAL;
- png_set_pCAL;
- png_get_pHYs;
- png_set_pHYs;
- png_get_PLTE;
- png_set_PLTE;
- png_get_sBIT;
- png_set_sBIT;
- png_get_sRGB;
- png_set_sRGB;
- png_set_sRGB_gAMA_and_cHRM;
- png_get_iCCP;
- png_set_iCCP;
- png_get_sPLT;
- png_set_sPLT;
- png_get_text;
- png_set_text;
- png_get_tIME;
- png_set_tIME;
- png_get_tRNS;
- png_set_tRNS;
- png_get_sCAL;
- png_get_sCAL_fixed;
- png_get_sCAL_s;
- png_set_sCAL;
- png_set_sCAL_fixed;
- png_set_sCAL_s;
- png_set_keep_unknown_chunks;
- png_handle_as_unknown;
- png_set_unknown_chunks;
- png_set_unknown_chunk_location;
- png_get_unknown_chunks;
- png_set_invalid;
- png_read_png;
- png_write_png;
- png_get_copyright;
- png_get_header_ver;
- png_get_header_version;
- png_get_libpng_ver;
- png_permit_mng_features;
- png_set_user_limits;
- png_get_user_width_max;
- png_get_user_height_max;
- png_set_chunk_cache_max;
- png_get_chunk_cache_max;
- png_set_chunk_malloc_max;
- png_get_chunk_malloc_max;
- png_get_pixels_per_inch;
- png_get_x_pixels_per_inch;
- png_get_y_pixels_per_inch;
- png_get_x_offset_inches;
- png_get_x_offset_inches_fixed;
- png_get_y_offset_inches;
- png_get_y_offset_inches_fixed;
- png_get_pHYs_dpi;
- png_get_io_state;
- png_get_io_chunk_type;
- png_get_uint_32;
- png_get_uint_16;
- png_get_int_32;
- png_get_uint_31;
- png_save_uint_32;
- png_save_int_32;
- png_save_uint_16;
- png_set_check_for_invalid_index;
- png_get_palette_max;
- png_image_begin_read_from_file;
- png_image_begin_read_from_stdio;
- png_image_begin_read_from_memory;
- png_image_finish_read;
- png_image_free;
- png_image_write_to_file;
- png_image_write_to_stdio;
- png_image_write_to_memory;
- png_set_option;
-local: *; };
diff --git a/3rdparty/libpng/libpng-1.6.37/libpng16-config b/3rdparty/libpng/libpng-1.6.37/libpng16-config
deleted file mode 100755
index 20f54fa..0000000
--- a/3rdparty/libpng/libpng-1.6.37/libpng16-config
+++ /dev/null
@@ -1,127 +0,0 @@
-#! /bin/sh
-
-# libpng-config
-# provides configuration info for libpng.
-
-# Copyright (C) 2002, 2004, 2006, 2007 Glenn Randers-Pehrson
-
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Modeled after libxml-config.
-
-version="1.6.37"
-prefix="/home/guowenxue/fl2440/3rdparty/libpng/../install"
-exec_prefix="${prefix}"
-libdir="${exec_prefix}/lib"
-includedir="${prefix}/include/libpng16"
-libs="-lpng16"
-all_libs="-lpng16 -lm -lz -lm "
-I_opts="-I${includedir}"
-L_opts="-L${libdir}"
-R_opts=""
-cppflags=""
-ccopts=""
-ldopts=""
-
-usage()
-{
- cat <<EOF
-Usage: $0 [OPTION] ...
-
-Known values for OPTION are:
-
- --prefix print libpng prefix
- --libdir print path to directory containing library
- --libs print library linking information
- --ccopts print compiler options
- --cppflags print pre-processor flags
- --cflags print preprocessor flags, I_opts, and compiler options
- --I_opts print "-I" include options
- --L_opts print linker "-L" flags for dynamic linking
- --R_opts print dynamic linker "-R" or "-rpath" flags
- --ldopts print linker options
- --ldflags print linker flags (ldopts, L_opts, R_opts, and libs)
- --static revise subsequent outputs for static linking
- --help print this help and exit
- --version print version information
-EOF
-
- exit $1
-}
-
-if test $# -eq 0; then
- usage 1
-fi
-
-while test $# -gt 0; do
- case "$1" in
-
- --prefix)
- echo ${prefix}
- ;;
-
- --version)
- echo ${version}
- exit 0
- ;;
-
- --help)
- usage 0
- ;;
-
- --ccopts)
- echo ${ccopts}
- ;;
-
- --cppflags)
- echo ${cppflags}
- ;;
-
- --cflags)
- echo ${I_opts} ${cppflags} ${ccopts}
- ;;
-
- --libdir)
- echo ${libdir}
- ;;
-
- --libs)
- echo ${libs}
- ;;
-
- --I_opts)
- echo ${I_opts}
- ;;
-
- --L_opts)
- echo ${L_opts}
- ;;
-
- --R_opts)
- echo ${R_opts}
- ;;
-
- --ldopts)
- echo ${ldopts}
- ;;
-
- --ldflags)
- echo ${ldopts} ${L_opts} ${R_opts} ${libs}
- ;;
-
- --static)
- R_opts=""
- libs=${all_libs}
- ;;
-
- *)
- usage
- exit 1
- ;;
- esac
- shift
-done
-
-exit 0
diff --git a/3rdparty/libpng/libpng-1.6.37/libpng16.la b/3rdparty/libpng/libpng-1.6.37/libpng16.la
deleted file mode 100644
index be7a806..0000000
--- a/3rdparty/libpng/libpng-1.6.37/libpng16.la
+++ /dev/null
@@ -1,41 +0,0 @@
-# libpng16.la - a libtool library file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# The name that we can dlopen(3).
-dlname='libpng16.so.16'
-
-# Names of this library.
-library_names='libpng16.so.16.37.0 libpng16.so.16 libpng16.so'
-
-# The name of the static archive.
-old_library='libpng16.a'
-
-# Linker flags that cannot go in dependency_libs.
-inherited_linker_flags=''
-
-# Libraries that this one depends upon.
-dependency_libs=' -L/home/guowenxue/fl2440/3rdparty/libpng/../install//lib -lz -lm'
-
-# Names of additional weak libraries provided by this library
-weak_library_names=''
-
-# Version information for libpng16.
-current=53
-age=37
-revision=0
-
-# Is this an already installed library?
-installed=no
-
-# Should we warn about portability when linking against -modules?
-shouldnotlink=no
-
-# Files to dlopen/dlpreopen
-dlopen=''
-dlpreopen=''
-
-# Directory that this library needs to be installed in:
-libdir='/home/guowenxue/fl2440/3rdparty/libpng/../install/lib'
diff --git a/3rdparty/libpng/libpng-1.6.37/libpng16.pc b/3rdparty/libpng/libpng-1.6.37/libpng16.pc
deleted file mode 100644
index 5269c6e..0000000
--- a/3rdparty/libpng/libpng-1.6.37/libpng16.pc
+++ /dev/null
@@ -1,12 +0,0 @@
-prefix=/home/guowenxue/fl2440/3rdparty/libpng/../install
-exec_prefix=${prefix}
-libdir=${exec_prefix}/lib
-includedir=${prefix}/include/libpng16
-
-Name: libpng
-Description: Loads and saves PNG files
-Version: 1.6.37
-Requires: zlib
-Libs: -L${libdir} -lpng16
-Libs.private: -lm -lz -lm
-Cflags: -I${includedir}
diff --git a/3rdparty/libpng/libpng-1.6.37/libpngpf.3 b/3rdparty/libpng/libpng-1.6.37/libpngpf.3
deleted file mode 100644
index 6909c70..0000000
--- a/3rdparty/libpng/libpng-1.6.37/libpngpf.3
+++ /dev/null
@@ -1,24 +0,0 @@
-.TH LIBPNGPF 3 "April 14, 2019"
-.SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.6.37
-(private functions)
-
-.SH SYNOPSIS
-\fB#include \fI"pngpriv.h"
-
-\fBAs of libpng version \fP\fI1.5.1\fP\fB, this section is no longer
-\fP\fImaintained\fP\fB, now that the private function prototypes are hidden in
-\fP\fIpngpriv.h\fP\fB and not accessible to applications. Look in
-\fP\fIpngpriv.h\fP\fB for the prototypes and a short description of each
-function.
-
-.SH DESCRIPTION
-The functions previously listed here are used privately by libpng and are not
-available for use by applications. They are not "exported" to applications
-using shared libraries.
-
-.SH "SEE ALSO"
-.BR "png"(5), " libpng"(3), " zlib"(3), " deflate"(5), " " and " zlib"(5)
-
-.SH AUTHORS
-Cosmin Truta, Glenn Randers-Pehrson
diff --git a/3rdparty/libpng/libpng-1.6.37/libtool b/3rdparty/libpng/libpng-1.6.37/libtool
deleted file mode 100755
index e9eb267..0000000
--- a/3rdparty/libpng/libpng-1.6.37/libtool
+++ /dev/null
@@ -1,11645 +0,0 @@
-#! /bin/bash
-# Generated automatically by config.status (libpng) 1.6.37
-# Libtool was configured on host ubuntu-master:
-# NOTE: Changes made to this file will be lost: look at ltmain.sh.
-
-# Provide generalized library-building support services.
-# Written by Gordon Matzigkeit, 1996
-
-# Copyright (C) 2014 Free Software Foundation, Inc.
-# This is free software; see the source for copying conditions. There is NO
-# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-# GNU Libtool is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of of the License, or
-# (at your option) any later version.
-#
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program or library that is built
-# using GNU Libtool, you may include this file under the same
-# distribution terms that you use for the rest of that program.
-#
-# GNU Libtool is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-
-# The names of the tagged configurations supported by this script.
-available_tags=''
-
-# Configured defaults for sys_lib_dlsearch_path munging.
-: ${LT_SYS_LIBRARY_PATH=""}
-
-# ### BEGIN LIBTOOL CONFIG
-
-# A sed program that does not truncate output.
-SED="/bin/sed"
-
-# Sed that helps us avoid accidentally triggering echo(1) options like -n.
-Xsed="$SED -e 1s/^X//"
-
-# A grep program that handles long lines.
-GREP="/bin/grep"
-
-# An ERE matcher.
-EGREP="/bin/grep -E"
-
-# A literal string matcher.
-FGREP="/bin/grep -F"
-
-# Shell to use when invoking shell scripts.
-SHELL="/bin/bash"
-
-# An echo program that protects backslashes.
-ECHO="printf %s\\n"
-
-# Which release of libtool.m4 was used?
-macro_version=2.4.6
-macro_revision=2.4.6
-
-# Assembler program.
-AS="/opt/xtools/arm920t/bin/arm-linux-as"
-
-# DLL creation program.
-DLLTOOL="false"
-
-# Object dumper program.
-OBJDUMP="/opt/xtools/arm920t/bin/arm-linux-objdump"
-
-# Whether or not to build shared libraries.
-build_libtool_libs=yes
-
-# Whether or not to build static libraries.
-build_old_libs=yes
-
-# What type of objects to build.
-pic_mode=default
-
-# Whether or not to optimize for fast installation.
-fast_install=needless
-
-# Shared archive member basename,for filename based shared library versioning on AIX.
-shared_archive_member_spec=
-
-# The PATH separator for the build system.
-PATH_SEPARATOR=":"
-
-# The host system.
-host_alias=arm-linux
-host=arm-unknown-linux-gnu
-host_os=linux-gnu
-
-# The build system.
-build_alias=i686-pc-linux
-build=i686-pc-linux-gnu
-build_os=linux-gnu
-
-# A BSD- or MS-compatible name lister.
-NM="/opt/xtools/arm920t/bin/arm-linux-nm"
-
-# Whether we need soft or hard links.
-LN_S="ln -s"
-
-# What is the maximum length of a command?
-max_cmd_len=1572864
-
-# Object file suffix (normally "o").
-objext=o
-
-# Executable file suffix (normally "").
-exeext=
-
-# whether the shell understands "unset".
-lt_unset=unset
-
-# turn spaces into newlines.
-SP2NL="tr \\040 \\012"
-
-# turn newlines into spaces.
-NL2SP="tr \\015\\012 \\040\\040"
-
-# convert $build file names to $host format.
-to_host_file_cmd=func_convert_file_noop
-
-# convert $build files to toolchain format.
-to_tool_file_cmd=func_convert_file_noop
-
-# Method to check whether dependent libraries are shared objects.
-deplibs_check_method="pass_all"
-
-# Command to use when deplibs_check_method = "file_magic".
-file_magic_cmd="\$MAGIC_CMD"
-
-# How to find potential files when deplibs_check_method = "file_magic".
-file_magic_glob=""
-
-# Find potential files using nocaseglob when deplibs_check_method = "file_magic".
-want_nocaseglob="no"
-
-# Command to associate shared and link libraries.
-sharedlib_from_linklib_cmd="printf %s\\n"
-
-# The archiver.
-AR="/opt/xtools/arm920t/bin/arm-linux-ar"
-
-# Flags to create an archive.
-AR_FLAGS="cru"
-
-# How to feed a file listing to the archiver.
-archiver_list_spec="@"
-
-# A symbol stripping program.
-STRIP="/opt/xtools/arm920t/bin/arm-linux-strip"
-
-# Commands used to install an old-style archive.
-RANLIB="/opt/xtools/arm920t/bin/arm-linux-ranlib"
-old_postinstall_cmds="chmod 644 \$oldlib~\$RANLIB \$tool_oldlib"
-old_postuninstall_cmds=""
-
-# Whether to use a lock for old archive extraction.
-lock_old_archive_extraction=no
-
-# A C compiler.
-LTCC="/opt/xtools/arm920t/bin/arm-linux-gcc"
-
-# LTCC compiler flags.
-LTCFLAGS=" -I/home/guowenxue/fl2440/3rdparty/libpng/../install//include"
-
-# Take the output of nm and produce a listing of raw symbols and C names.
-global_symbol_pipe="sed -n -e 's/^.*[ ]\\([ABCDGIRSTW][ABCDGIRSTW]*\\)[ ][ ]*\\([_A-Za-z][_A-Za-z0-9]*\\)\$/\\1 \\2 \\2/p' | sed '/ __gnu_lto/d'"
-
-# Transform the output of nm in a proper C declaration.
-global_symbol_to_cdecl="sed -n -e 's/^T .* \\(.*\\)\$/extern int \\1();/p' -e 's/^[ABCDGIRSTW][ABCDGIRSTW]* .* \\(.*\\)\$/extern char \\1;/p'"
-
-# Transform the output of nm into a list of symbols to manually relocate.
-global_symbol_to_import=""
-
-# Transform the output of nm in a C name address pair.
-global_symbol_to_c_name_address="sed -n -e 's/^: \\(.*\\) .*\$/ {\"\\1\", (void *) 0},/p' -e 's/^[ABCDGIRSTW][ABCDGIRSTW]* .* \\(.*\\)\$/ {\"\\1\", (void *) \\&\\1},/p'"
-
-# Transform the output of nm in a C name address pair when lib prefix is needed.
-global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \\(.*\\) .*\$/ {\"\\1\", (void *) 0},/p' -e 's/^[ABCDGIRSTW][ABCDGIRSTW]* .* \\(lib.*\\)\$/ {\"\\1\", (void *) \\&\\1},/p' -e 's/^[ABCDGIRSTW][ABCDGIRSTW]* .* \\(.*\\)\$/ {\"lib\\1\", (void *) \\&\\1},/p'"
-
-# The name lister interface.
-nm_interface="BSD nm"
-
-# Specify filename containing input files for $NM.
-nm_file_list_spec="@"
-
-# The root where to search for dependent libraries,and where our libraries should be installed.
-lt_sysroot=
-
-# Command to truncate a binary pipe.
-lt_truncate_bin="/bin/dd bs=4096 count=1"
-
-# The name of the directory that contains temporary libtool files.
-objdir=.libs
-
-# Used to examine libraries when file_magic_cmd begins with "file".
-MAGIC_CMD=file
-
-# Must we lock files when doing compilation?
-need_locks="no"
-
-# Manifest tool.
-MANIFEST_TOOL=":"
-
-# Tool to manipulate archived DWARF debug symbol files on Mac OS X.
-DSYMUTIL=""
-
-# Tool to change global to local symbols on Mac OS X.
-NMEDIT=""
-
-# Tool to manipulate fat objects and archives on Mac OS X.
-LIPO=""
-
-# ldd/readelf like tool for Mach-O binaries on Mac OS X.
-OTOOL=""
-
-# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4.
-OTOOL64=""
-
-# Old archive suffix (normally "a").
-libext=a
-
-# Shared library suffix (normally ".so").
-shrext_cmds=".so"
-
-# The commands to extract the exported symbol list from a shared archive.
-extract_expsyms_cmds=""
-
-# Variables whose values should be saved in libtool wrapper scripts and
-# restored at link time.
-variables_saved_for_relink="PATH LD_LIBRARY_PATH LD_RUN_PATH GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
-
-# Do we need the "lib" prefix for modules?
-need_lib_prefix=no
-
-# Do we need a version for libraries?
-need_version=no
-
-# Library versioning type.
-version_type=linux
-
-# Shared library runtime path variable.
-runpath_var=LD_RUN_PATH
-
-# Shared library path variable.
-shlibpath_var=LD_LIBRARY_PATH
-
-# Is shlibpath searched before the hard-coded library search path?
-shlibpath_overrides_runpath=yes
-
-# Format of library name prefix.
-libname_spec="lib\$name"
-
-# List of archive names. First name is the real one, the rest are links.
-# The last name is the one that the linker finds with -lNAME
-library_names_spec="\$libname\$release\$shared_ext\$versuffix \$libname\$release\$shared_ext\$major \$libname\$shared_ext"
-
-# The coded name of the library, if different from the real name.
-soname_spec="\$libname\$release\$shared_ext\$major"
-
-# Permission mode override for installation of shared libraries.
-install_override_mode=""
-
-# Command to use after installation of a shared archive.
-postinstall_cmds=""
-
-# Command to use after uninstallation of a shared archive.
-postuninstall_cmds=""
-
-# Commands used to finish a libtool library installation in a directory.
-finish_cmds="PATH=\\\"\\\$PATH:/sbin\\\" ldconfig -n \$libdir"
-
-# As "finish_cmds", except a single script fragment to be evaled but
-# not shown.
-finish_eval=""
-
-# Whether we should hardcode library paths into libraries.
-hardcode_into_libs=yes
-
-# Compile-time system search path for libraries.
-sys_lib_search_path_spec="/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6 /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/lib /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/lib /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/lib "
-
-# Detected run-time system search path for libraries.
-sys_lib_dlsearch_path_spec="/lib /usr/lib /usr/lib/x86_64-linux-gnu/libfakeroot /usr/local/freetype/lib /lib/i386-linux-gnu /usr/lib/i386-linux-gnu /lib/i686-linux-gnu /usr/lib/i686-linux-gnu /usr/local/lib /usr/local/mysql/lib /usr/local/lib /lib/x86_64-linux-gnu /usr/lib/x86_64-linux-gnu /usr/lib/x86_64-linux-gnu/mesa-egl /usr/lib/x86_64-linux-gnu/mesa /lib32 /usr/lib32 /libx32 /usr/libx32 /lib /usr/lib /usr/local/lib "
-
-# Explicit LT_SYS_LIBRARY_PATH set during ./configure time.
-configure_time_lt_sys_library_path=""
-
-# Whether dlopen is supported.
-dlopen_support=unknown
-
-# Whether dlopen of programs is supported.
-dlopen_self=unknown
-
-# Whether dlopen of statically linked programs is supported.
-dlopen_self_static=unknown
-
-# Commands to strip libraries.
-old_striplib="/opt/xtools/arm920t/bin/arm-linux-strip --strip-debug"
-striplib="/opt/xtools/arm920t/bin/arm-linux-strip --strip-unneeded"
-
-
-# The linker used to build libraries.
-LD="/opt/xtools/arm920t/bin/arm-linux-ld"
-
-# How to create reloadable object files.
-reload_flag=" -r"
-reload_cmds="\$LD\$reload_flag -o \$output\$reload_objs"
-
-# Commands used to build an old-style archive.
-old_archive_cmds="\$AR \$AR_FLAGS \$oldlib\$oldobjs~\$RANLIB \$tool_oldlib"
-
-# A language specific compiler.
-CC="/opt/xtools/arm920t/bin/arm-linux-gcc"
-
-# Is the compiler the GNU compiler?
-with_gcc=yes
-
-# Compiler flag to turn off builtin functions.
-no_builtin_flag=" -fno-builtin"
-
-# Additional compiler flags for building library objects.
-pic_flag=" -fPIC -DPIC"
-
-# How to pass a linker flag through the compiler.
-wl="-Wl,"
-
-# Compiler flag to prevent dynamic linking.
-link_static_flag="-static"
-
-# Does compiler simultaneously support -c and -o options?
-compiler_c_o="yes"
-
-# Whether or not to add -lc for building shared libraries.
-build_libtool_need_lc=no
-
-# Whether or not to disallow shared libs when runtime libs are static.
-allow_libtool_libs_with_static_runtimes=no
-
-# Compiler flag to allow reflexive dlopens.
-export_dynamic_flag_spec="\$wl--export-dynamic"
-
-# Compiler flag to generate shared objects directly from archives.
-whole_archive_flag_spec="\$wl--whole-archive\$convenience \$wl--no-whole-archive"
-
-# Whether the compiler copes with passing no objects directly.
-compiler_needs_object="no"
-
-# Create an old-style archive from a shared archive.
-old_archive_from_new_cmds=""
-
-# Create a temporary old-style archive to link instead of a shared archive.
-old_archive_from_expsyms_cmds=""
-
-# Commands used to build a shared archive.
-archive_cmds="\$CC -shared \$pic_flag \$libobjs \$deplibs \$compiler_flags \$wl-soname \$wl\$soname -o \$lib"
-archive_expsym_cmds=""
-
-# Commands used to build a loadable module if different from building
-# a shared archive.
-module_cmds=""
-module_expsym_cmds=""
-
-# Whether we are building with GNU ld or not.
-with_gnu_ld="yes"
-
-# Flag that allows shared libraries with undefined symbols to be built.
-allow_undefined_flag=""
-
-# Flag that enforces no undefined symbols.
-no_undefined_flag=""
-
-# Flag to hardcode $libdir into a binary during linking.
-# This must work even if $libdir does not exist
-hardcode_libdir_flag_spec="\$wl-rpath \$wl\$libdir"
-
-# Whether we need a single "-rpath" flag with a separated argument.
-hardcode_libdir_separator=""
-
-# Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
-# DIR into the resulting binary.
-hardcode_direct=no
-
-# Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
-# DIR into the resulting binary and the resulting library dependency is
-# "absolute",i.e impossible to change by setting $shlibpath_var if the
-# library is relocated.
-hardcode_direct_absolute=no
-
-# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
-# into the resulting binary.
-hardcode_minus_L=no
-
-# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
-# into the resulting binary.
-hardcode_shlibpath_var=unsupported
-
-# Set to "yes" if building a shared library automatically hardcodes DIR
-# into the library and all subsequent libraries and executables linked
-# against it.
-hardcode_automatic=no
-
-# Set to yes if linker adds runtime paths of dependent libraries
-# to runtime path list.
-inherit_rpath=no
-
-# Whether libtool must link a program against all its dependency libraries.
-link_all_deplibs=unknown
-
-# Set to "yes" if exported symbols are required.
-always_export_symbols=no
-
-# The commands to list exported symbols.
-export_symbols_cmds="\$NM \$libobjs \$convenience | \$global_symbol_pipe | \$SED 's/.* //' | sort | uniq > \$export_symbols"
-
-# Symbols that should not be listed in the preloaded symbols.
-exclude_expsyms="_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*"
-
-# Symbols that must always be exported.
-include_expsyms=""
-
-# Commands necessary for linking programs (against libraries) with templates.
-prelink_cmds=""
-
-# Commands necessary for finishing linking programs.
-postlink_cmds=""
-
-# Specify filename containing input files.
-file_list_spec=""
-
-# How to hardcode a shared library path into an executable.
-hardcode_action=immediate
-
-# ### END LIBTOOL CONFIG
-
-
-# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE
-
-# func_munge_path_list VARIABLE PATH
-# -----------------------------------
-# VARIABLE is name of variable containing _space_ separated list of
-# directories to be munged by the contents of PATH, which is string
-# having a format:
-# "DIR[:DIR]:"
-# string "DIR[ DIR]" will be prepended to VARIABLE
-# ":DIR[:DIR]"
-# string "DIR[ DIR]" will be appended to VARIABLE
-# "DIRP[:DIRP]::[DIRA:]DIRA"
-# string "DIRP[ DIRP]" will be prepended to VARIABLE and string
-# "DIRA[ DIRA]" will be appended to VARIABLE
-# "DIR[:DIR]"
-# VARIABLE will be replaced by "DIR[ DIR]"
-func_munge_path_list ()
-{
- case x$2 in
- x)
- ;;
- *:)
- eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\"
- ;;
- x:*)
- eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\"
- ;;
- *::*)
- eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
- eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\"
- ;;
- *)
- eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\"
- ;;
- esac
-}
-
-
-# Calculate cc_basename. Skip known compiler wrappers and cross-prefix.
-func_cc_basename ()
-{
- for cc_temp in $*""; do
- case $cc_temp in
- compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
- distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
- \-*) ;;
- *) break;;
- esac
- done
- func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
-}
-
-
-# ### END FUNCTIONS SHARED WITH CONFIGURE
-
-#! /bin/sh
-## DO NOT EDIT - This file generated from ./build-aux/ltmain.in
-## by inline-source v2014-01-03.01
-
-# libtool (GNU libtool) 2.4.6
-# Provide generalized library-building support services.
-# Written by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
-
-# Copyright (C) 1996-2015 Free Software Foundation, Inc.
-# This is free software; see the source for copying conditions. There is NO
-# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-# GNU Libtool is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# As a special exception to the GNU General Public License,
-# if you distribute this file as part of a program or library that
-# is built using GNU Libtool, you may include this file under the
-# same distribution terms that you use for the rest of that program.
-#
-# GNU Libtool is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-
-PROGRAM=libtool
-PACKAGE=libtool
-VERSION=2.4.6
-package_revision=2.4.6
-
-
-## ------ ##
-## Usage. ##
-## ------ ##
-
-# Run './libtool --help' for help with using this script from the
-# command line.
-
-
-## ------------------------------- ##
-## User overridable command paths. ##
-## ------------------------------- ##
-
-# After configure completes, it has a better idea of some of the
-# shell tools we need than the defaults used by the functions shared
-# with bootstrap, so set those here where they can still be over-
-# ridden by the user, but otherwise take precedence.
-
-: ${AUTOCONF="autoconf"}
-: ${AUTOMAKE="automake"}
-
-
-## -------------------------- ##
-## Source external libraries. ##
-## -------------------------- ##
-
-# Much of our low-level functionality needs to be sourced from external
-# libraries, which are installed to $pkgauxdir.
-
-# Set a version string for this script.
-scriptversion=2015-01-20.17; # UTC
-
-# General shell script boiler plate, and helper functions.
-# Written by Gary V. Vaughan, 2004
-
-# Copyright (C) 2004-2015 Free Software Foundation, Inc.
-# This is free software; see the source for copying conditions. There is NO
-# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-
-# As a special exception to the GNU General Public License, if you distribute
-# this file as part of a program or library that is built using GNU Libtool,
-# you may include this file under the same distribution terms that you use
-# for the rest of that program.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-# Please report bugs or propose patches to gary@gnu.org.
-
-
-## ------ ##
-## Usage. ##
-## ------ ##
-
-# Evaluate this file near the top of your script to gain access to
-# the functions and variables defined here:
-#
-# . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh
-#
-# If you need to override any of the default environment variable
-# settings, do that before evaluating this file.
-
-
-## -------------------- ##
-## Shell normalisation. ##
-## -------------------- ##
-
-# Some shells need a little help to be as Bourne compatible as possible.
-# Before doing anything else, make sure all that help has been provided!
-
-DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
- emulate sh
- NULLCMD=:
- # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
-else
- case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac
-fi
-
-# NLS nuisances: We save the old values in case they are required later.
-_G_user_locale=
-_G_safe_locale=
-for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
-do
- eval "if test set = \"\${$_G_var+set}\"; then
- save_$_G_var=\$$_G_var
- $_G_var=C
- export $_G_var
- _G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\"
- _G_safe_locale=\"$_G_var=C; \$_G_safe_locale\"
- fi"
-done
-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-# Make sure IFS has a sensible default
-sp=' '
-nl='
-'
-IFS="$sp $nl"
-
-# There are apparently some retarded systems that use ';' as a PATH separator!
-if test "${PATH_SEPARATOR+set}" != set; then
- PATH_SEPARATOR=:
- (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
- (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
- PATH_SEPARATOR=';'
- }
-fi
-
-
-
-## ------------------------- ##
-## Locate command utilities. ##
-## ------------------------- ##
-
-
-# func_executable_p FILE
-# ----------------------
-# Check that FILE is an executable regular file.
-func_executable_p ()
-{
- test -f "$1" && test -x "$1"
-}
-
-
-# func_path_progs PROGS_LIST CHECK_FUNC [PATH]
-# --------------------------------------------
-# Search for either a program that responds to --version with output
-# containing "GNU", or else returned by CHECK_FUNC otherwise, by
-# trying all the directories in PATH with each of the elements of
-# PROGS_LIST.
-#
-# CHECK_FUNC should accept the path to a candidate program, and
-# set $func_check_prog_result if it truncates its output less than
-# $_G_path_prog_max characters.
-func_path_progs ()
-{
- _G_progs_list=$1
- _G_check_func=$2
- _G_PATH=${3-"$PATH"}
-
- _G_path_prog_max=0
- _G_path_prog_found=false
- _G_save_IFS=$IFS; IFS=${PATH_SEPARATOR-:}
- for _G_dir in $_G_PATH; do
- IFS=$_G_save_IFS
- test -z "$_G_dir" && _G_dir=.
- for _G_prog_name in $_G_progs_list; do
- for _exeext in '' .EXE; do
- _G_path_prog=$_G_dir/$_G_prog_name$_exeext
- func_executable_p "$_G_path_prog" || continue
- case `"$_G_path_prog" --version 2>&1` in
- *GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;;
- *) $_G_check_func $_G_path_prog
- func_path_progs_result=$func_check_prog_result
- ;;
- esac
- $_G_path_prog_found && break 3
- done
- done
- done
- IFS=$_G_save_IFS
- test -z "$func_path_progs_result" && {
- echo "no acceptable sed could be found in \$PATH" >&2
- exit 1
- }
-}
-
-
-# We want to be able to use the functions in this file before configure
-# has figured out where the best binaries are kept, which means we have
-# to search for them ourselves - except when the results are already set
-# where we skip the searches.
-
-# Unless the user overrides by setting SED, search the path for either GNU
-# sed, or the sed that truncates its output the least.
-test -z "$SED" && {
- _G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
- for _G_i in 1 2 3 4 5 6 7; do
- _G_sed_script=$_G_sed_script$nl$_G_sed_script
- done
- echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed
- _G_sed_script=
-
- func_check_prog_sed ()
- {
- _G_path_prog=$1
-
- _G_count=0
- printf 0123456789 >conftest.in
- while :
- do
- cat conftest.in conftest.in >conftest.tmp
- mv conftest.tmp conftest.in
- cp conftest.in conftest.nl
- echo '' >> conftest.nl
- "$_G_path_prog" -f conftest.sed <conftest.nl >conftest.out 2>/dev/null || break
- diff conftest.out conftest.nl >/dev/null 2>&1 || break
- _G_count=`expr $_G_count + 1`
- if test "$_G_count" -gt "$_G_path_prog_max"; then
- # Best one so far, save it but keep looking for a better one
- func_check_prog_result=$_G_path_prog
- _G_path_prog_max=$_G_count
- fi
- # 10*(2^10) chars as input seems more than enough
- test 10 -lt "$_G_count" && break
- done
- rm -f conftest.in conftest.tmp conftest.nl conftest.out
- }
-
- func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin
- rm -f conftest.sed
- SED=$func_path_progs_result
-}
-
-
-# Unless the user overrides by setting GREP, search the path for either GNU
-# grep, or the grep that truncates its output the least.
-test -z "$GREP" && {
- func_check_prog_grep ()
- {
- _G_path_prog=$1
-
- _G_count=0
- _G_path_prog_max=0
- printf 0123456789 >conftest.in
- while :
- do
- cat conftest.in conftest.in >conftest.tmp
- mv conftest.tmp conftest.in
- cp conftest.in conftest.nl
- echo 'GREP' >> conftest.nl
- "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' <conftest.nl >conftest.out 2>/dev/null || break
- diff conftest.out conftest.nl >/dev/null 2>&1 || break
- _G_count=`expr $_G_count + 1`
- if test "$_G_count" -gt "$_G_path_prog_max"; then
- # Best one so far, save it but keep looking for a better one
- func_check_prog_result=$_G_path_prog
- _G_path_prog_max=$_G_count
- fi
- # 10*(2^10) chars as input seems more than enough
- test 10 -lt "$_G_count" && break
- done
- rm -f conftest.in conftest.tmp conftest.nl conftest.out
- }
-
- func_path_progs "grep ggrep" func_check_prog_grep $PATH:/usr/xpg4/bin
- GREP=$func_path_progs_result
-}
-
-
-## ------------------------------- ##
-## User overridable command paths. ##
-## ------------------------------- ##
-
-# All uppercase variable names are used for environment variables. These
-# variables can be overridden by the user before calling a script that
-# uses them if a suitable command of that name is not already available
-# in the command search PATH.
-
-: ${CP="cp -f"}
-: ${ECHO="printf %s\n"}
-: ${EGREP="$GREP -E"}
-: ${FGREP="$GREP -F"}
-: ${LN_S="ln -s"}
-: ${MAKE="make"}
-: ${MKDIR="mkdir"}
-: ${MV="mv -f"}
-: ${RM="rm -f"}
-: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
-
-
-## -------------------- ##
-## Useful sed snippets. ##
-## -------------------- ##
-
-sed_dirname='s|/[^/]*$||'
-sed_basename='s|^.*/||'
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
-
-# Same as above, but do not quote variable references.
-sed_double_quote_subst='s/\(["`\\]\)/\\\1/g'
-
-# Sed substitution that turns a string into a regex matching for the
-# string literally.
-sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g'
-
-# Sed substitution that converts a w32 file name or path
-# that contains forward slashes, into one that contains
-# (escaped) backslashes. A very naive implementation.
-sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
-
-# Re-'\' parameter expansions in output of sed_double_quote_subst that
-# were '\'-ed in input to the same. If an odd number of '\' preceded a
-# '$' in input to sed_double_quote_subst, that '$' was protected from
-# expansion. Since each input '\' is now two '\'s, look for any number
-# of runs of four '\'s followed by two '\'s and then a '$'. '\' that '$'.
-_G_bs='\\'
-_G_bs2='\\\\'
-_G_bs4='\\\\\\\\'
-_G_dollar='\$'
-sed_double_backslash="\
- s/$_G_bs4/&\\
-/g
- s/^$_G_bs2$_G_dollar/$_G_bs&/
- s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g
- s/\n//g"
-
-
-## ----------------- ##
-## Global variables. ##
-## ----------------- ##
-
-# Except for the global variables explicitly listed below, the following
-# functions in the '^func_' namespace, and the '^require_' namespace
-# variables initialised in the 'Resource management' section, sourcing
-# this file will not pollute your global namespace with anything
-# else. There's no portable way to scope variables in Bourne shell
-# though, so actually running these functions will sometimes place
-# results into a variable named after the function, and often use
-# temporary variables in the '^_G_' namespace. If you are careful to
-# avoid using those namespaces casually in your sourcing script, things
-# should continue to work as you expect. And, of course, you can freely
-# overwrite any of the functions or variables defined here before
-# calling anything to customize them.
-
-EXIT_SUCCESS=0
-EXIT_FAILURE=1
-EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing.
-EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake.
-
-# Allow overriding, eg assuming that you follow the convention of
-# putting '$debug_cmd' at the start of all your functions, you can get
-# bash to show function call trace with:
-#
-# debug_cmd='eval echo "${FUNCNAME[0]} $*" >&2' bash your-script-name
-debug_cmd=${debug_cmd-":"}
-exit_cmd=:
-
-# By convention, finish your script with:
-#
-# exit $exit_status
-#
-# so that you can set exit_status to non-zero if you want to indicate
-# something went wrong during execution without actually bailing out at
-# the point of failure.
-exit_status=$EXIT_SUCCESS
-
-# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
-# is ksh but when the shell is invoked as "sh" and the current value of
-# the _XPG environment variable is not equal to 1 (one), the special
-# positional parameter $0, within a function call, is the name of the
-# function.
-progpath=$0
-
-# The name of this program.
-progname=`$ECHO "$progpath" |$SED "$sed_basename"`
-
-# Make sure we have an absolute progpath for reexecution:
-case $progpath in
- [\\/]*|[A-Za-z]:\\*) ;;
- *[\\/]*)
- progdir=`$ECHO "$progpath" |$SED "$sed_dirname"`
- progdir=`cd "$progdir" && pwd`
- progpath=$progdir/$progname
- ;;
- *)
- _G_IFS=$IFS
- IFS=${PATH_SEPARATOR-:}
- for progdir in $PATH; do
- IFS=$_G_IFS
- test -x "$progdir/$progname" && break
- done
- IFS=$_G_IFS
- test -n "$progdir" || progdir=`pwd`
- progpath=$progdir/$progname
- ;;
-esac
-
-
-## ----------------- ##
-## Standard options. ##
-## ----------------- ##
-
-# The following options affect the operation of the functions defined
-# below, and should be set appropriately depending on run-time para-
-# meters passed on the command line.
-
-opt_dry_run=false
-opt_quiet=false
-opt_verbose=false
-
-# Categories 'all' and 'none' are always available. Append any others
-# you will pass as the first argument to func_warning from your own
-# code.
-warning_categories=
-
-# By default, display warnings according to 'opt_warning_types'. Set
-# 'warning_func' to ':' to elide all warnings, or func_fatal_error to
-# treat the next displayed warning as a fatal error.
-warning_func=func_warn_and_continue
-
-# Set to 'all' to display all warnings, 'none' to suppress all
-# warnings, or a space delimited list of some subset of
-# 'warning_categories' to display only the listed warnings.
-opt_warning_types=all
-
-
-## -------------------- ##
-## Resource management. ##
-## -------------------- ##
-
-# This section contains definitions for functions that each ensure a
-# particular resource (a file, or a non-empty configuration variable for
-# example) is available, and if appropriate to extract default values
-# from pertinent package files. Call them using their associated
-# 'require_*' variable to ensure that they are executed, at most, once.
-#
-# It's entirely deliberate that calling these functions can set
-# variables that don't obey the namespace limitations obeyed by the rest
-# of this file, in order that that they be as useful as possible to
-# callers.
-
-
-# require_term_colors
-# -------------------
-# Allow display of bold text on terminals that support it.
-require_term_colors=func_require_term_colors
-func_require_term_colors ()
-{
- $debug_cmd
-
- test -t 1 && {
- # COLORTERM and USE_ANSI_COLORS environment variables take
- # precedence, because most terminfo databases neglect to describe
- # whether color sequences are supported.
- test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"}
-
- if test 1 = "$USE_ANSI_COLORS"; then
- # Standard ANSI escape sequences
- tc_reset='[0m'
- tc_bold='[1m'; tc_standout='[7m'
- tc_red='[31m'; tc_green='[32m'
- tc_blue='[34m'; tc_cyan='[36m'
- else
- # Otherwise trust the terminfo database after all.
- test -n "`tput sgr0 2>/dev/null`" && {
- tc_reset=`tput sgr0`
- test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold`
- tc_standout=$tc_bold
- test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso`
- test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1`
- test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2`
- test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4`
- test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5`
- }
- fi
- }
-
- require_term_colors=:
-}
-
-
-## ----------------- ##
-## Function library. ##
-## ----------------- ##
-
-# This section contains a variety of useful functions to call in your
-# scripts. Take note of the portable wrappers for features provided by
-# some modern shells, which will fall back to slower equivalents on
-# less featureful shells.
-
-
-# func_append VAR VALUE
-# ---------------------
-# Append VALUE onto the existing contents of VAR.
-
- # We should try to minimise forks, especially on Windows where they are
- # unreasonably slow, so skip the feature probes when bash or zsh are
- # being used:
- if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then
- : ${_G_HAVE_ARITH_OP="yes"}
- : ${_G_HAVE_XSI_OPS="yes"}
- # The += operator was introduced in bash 3.1
- case $BASH_VERSION in
- [12].* | 3.0 | 3.0*) ;;
- *)
- : ${_G_HAVE_PLUSEQ_OP="yes"}
- ;;
- esac
- fi
-
- # _G_HAVE_PLUSEQ_OP
- # Can be empty, in which case the shell is probed, "yes" if += is
- # useable or anything else if it does not work.
- test -z "$_G_HAVE_PLUSEQ_OP" \
- && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \
- && _G_HAVE_PLUSEQ_OP=yes
-
-if test yes = "$_G_HAVE_PLUSEQ_OP"
-then
- # This is an XSI compatible shell, allowing a faster implementation...
- eval 'func_append ()
- {
- $debug_cmd
-
- eval "$1+=\$2"
- }'
-else
- # ...otherwise fall back to using expr, which is often a shell builtin.
- func_append ()
- {
- $debug_cmd
-
- eval "$1=\$$1\$2"
- }
-fi
-
-
-# func_append_quoted VAR VALUE
-# ----------------------------
-# Quote VALUE and append to the end of shell variable VAR, separated
-# by a space.
-if test yes = "$_G_HAVE_PLUSEQ_OP"; then
- eval 'func_append_quoted ()
- {
- $debug_cmd
-
- func_quote_for_eval "$2"
- eval "$1+=\\ \$func_quote_for_eval_result"
- }'
-else
- func_append_quoted ()
- {
- $debug_cmd
-
- func_quote_for_eval "$2"
- eval "$1=\$$1\\ \$func_quote_for_eval_result"
- }
-fi
-
-
-# func_append_uniq VAR VALUE
-# --------------------------
-# Append unique VALUE onto the existing contents of VAR, assuming
-# entries are delimited by the first character of VALUE. For example:
-#
-# func_append_uniq options " --another-option option-argument"
-#
-# will only append to $options if " --another-option option-argument "
-# is not already present somewhere in $options already (note spaces at
-# each end implied by leading space in second argument).
-func_append_uniq ()
-{
- $debug_cmd
-
- eval _G_current_value='`$ECHO $'$1'`'
- _G_delim=`expr "$2" : '\(.\)'`
-
- case $_G_delim$_G_current_value$_G_delim in
- *"$2$_G_delim"*) ;;
- *) func_append "$@" ;;
- esac
-}
-
-
-# func_arith TERM...
-# ------------------
-# Set func_arith_result to the result of evaluating TERMs.
- test -z "$_G_HAVE_ARITH_OP" \
- && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \
- && _G_HAVE_ARITH_OP=yes
-
-if test yes = "$_G_HAVE_ARITH_OP"; then
- eval 'func_arith ()
- {
- $debug_cmd
-
- func_arith_result=$(( $* ))
- }'
-else
- func_arith ()
- {
- $debug_cmd
-
- func_arith_result=`expr "$@"`
- }
-fi
-
-
-# func_basename FILE
-# ------------------
-# Set func_basename_result to FILE with everything up to and including
-# the last / stripped.
-if test yes = "$_G_HAVE_XSI_OPS"; then
- # If this shell supports suffix pattern removal, then use it to avoid
- # forking. Hide the definitions single quotes in case the shell chokes
- # on unsupported syntax...
- _b='func_basename_result=${1##*/}'
- _d='case $1 in
- */*) func_dirname_result=${1%/*}$2 ;;
- * ) func_dirname_result=$3 ;;
- esac'
-
-else
- # ...otherwise fall back to using sed.
- _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`'
- _d='func_dirname_result=`$ECHO "$1" |$SED "$sed_dirname"`
- if test "X$func_dirname_result" = "X$1"; then
- func_dirname_result=$3
- else
- func_append func_dirname_result "$2"
- fi'
-fi
-
-eval 'func_basename ()
-{
- $debug_cmd
-
- '"$_b"'
-}'
-
-
-# func_dirname FILE APPEND NONDIR_REPLACEMENT
-# -------------------------------------------
-# Compute the dirname of FILE. If nonempty, add APPEND to the result,
-# otherwise set result to NONDIR_REPLACEMENT.
-eval 'func_dirname ()
-{
- $debug_cmd
-
- '"$_d"'
-}'
-
-
-# func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT
-# --------------------------------------------------------
-# Perform func_basename and func_dirname in a single function
-# call:
-# dirname: Compute the dirname of FILE. If nonempty,
-# add APPEND to the result, otherwise set result
-# to NONDIR_REPLACEMENT.
-# value returned in "$func_dirname_result"
-# basename: Compute filename of FILE.
-# value retuned in "$func_basename_result"
-# For efficiency, we do not delegate to the functions above but instead
-# duplicate the functionality here.
-eval 'func_dirname_and_basename ()
-{
- $debug_cmd
-
- '"$_b"'
- '"$_d"'
-}'
-
-
-# func_echo ARG...
-# ----------------
-# Echo program name prefixed message.
-func_echo ()
-{
- $debug_cmd
-
- _G_message=$*
-
- func_echo_IFS=$IFS
- IFS=$nl
- for _G_line in $_G_message; do
- IFS=$func_echo_IFS
- $ECHO "$progname: $_G_line"
- done
- IFS=$func_echo_IFS
-}
-
-
-# func_echo_all ARG...
-# --------------------
-# Invoke $ECHO with all args, space-separated.
-func_echo_all ()
-{
- $ECHO "$*"
-}
-
-
-# func_echo_infix_1 INFIX ARG...
-# ------------------------------
-# Echo program name, followed by INFIX on the first line, with any
-# additional lines not showing INFIX.
-func_echo_infix_1 ()
-{
- $debug_cmd
-
- $require_term_colors
-
- _G_infix=$1; shift
- _G_indent=$_G_infix
- _G_prefix="$progname: $_G_infix: "
- _G_message=$*
-
- # Strip color escape sequences before counting printable length
- for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan"
- do
- test -n "$_G_tc" && {
- _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"`
- _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"`
- }
- done
- _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`" " ## exclude from sc_prohibit_nested_quotes
-
- func_echo_infix_1_IFS=$IFS
- IFS=$nl
- for _G_line in $_G_message; do
- IFS=$func_echo_infix_1_IFS
- $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2
- _G_prefix=$_G_indent
- done
- IFS=$func_echo_infix_1_IFS
-}
-
-
-# func_error ARG...
-# -----------------
-# Echo program name prefixed message to standard error.
-func_error ()
-{
- $debug_cmd
-
- $require_term_colors
-
- func_echo_infix_1 " $tc_standout${tc_red}error$tc_reset" "$*" >&2
-}
-
-
-# func_fatal_error ARG...
-# -----------------------
-# Echo program name prefixed message to standard error, and exit.
-func_fatal_error ()
-{
- $debug_cmd
-
- func_error "$*"
- exit $EXIT_FAILURE
-}
-
-
-# func_grep EXPRESSION FILENAME
-# -----------------------------
-# Check whether EXPRESSION matches any line of FILENAME, without output.
-func_grep ()
-{
- $debug_cmd
-
- $GREP "$1" "$2" >/dev/null 2>&1
-}
-
-
-# func_len STRING
-# ---------------
-# Set func_len_result to the length of STRING. STRING may not
-# start with a hyphen.
- test -z "$_G_HAVE_XSI_OPS" \
- && (eval 'x=a/b/c;
- test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
- && _G_HAVE_XSI_OPS=yes
-
-if test yes = "$_G_HAVE_XSI_OPS"; then
- eval 'func_len ()
- {
- $debug_cmd
-
- func_len_result=${#1}
- }'
-else
- func_len ()
- {
- $debug_cmd
-
- func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len`
- }
-fi
-
-
-# func_mkdir_p DIRECTORY-PATH
-# ---------------------------
-# Make sure the entire path to DIRECTORY-PATH is available.
-func_mkdir_p ()
-{
- $debug_cmd
-
- _G_directory_path=$1
- _G_dir_list=
-
- if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then
-
- # Protect directory names starting with '-'
- case $_G_directory_path in
- -*) _G_directory_path=./$_G_directory_path ;;
- esac
-
- # While some portion of DIR does not yet exist...
- while test ! -d "$_G_directory_path"; do
- # ...make a list in topmost first order. Use a colon delimited
- # list incase some portion of path contains whitespace.
- _G_dir_list=$_G_directory_path:$_G_dir_list
-
- # If the last portion added has no slash in it, the list is done
- case $_G_directory_path in */*) ;; *) break ;; esac
-
- # ...otherwise throw away the child directory and loop
- _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"`
- done
- _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'`
-
- func_mkdir_p_IFS=$IFS; IFS=:
- for _G_dir in $_G_dir_list; do
- IFS=$func_mkdir_p_IFS
- # mkdir can fail with a 'File exist' error if two processes
- # try to create one of the directories concurrently. Don't
- # stop in that case!
- $MKDIR "$_G_dir" 2>/dev/null || :
- done
- IFS=$func_mkdir_p_IFS
-
- # Bail out if we (or some other process) failed to create a directory.
- test -d "$_G_directory_path" || \
- func_fatal_error "Failed to create '$1'"
- fi
-}
-
-
-# func_mktempdir [BASENAME]
-# -------------------------
-# Make a temporary directory that won't clash with other running
-# libtool processes, and avoids race conditions if possible. If
-# given, BASENAME is the basename for that directory.
-func_mktempdir ()
-{
- $debug_cmd
-
- _G_template=${TMPDIR-/tmp}/${1-$progname}
-
- if test : = "$opt_dry_run"; then
- # Return a directory name, but don't create it in dry-run mode
- _G_tmpdir=$_G_template-$$
- else
-
- # If mktemp works, use that first and foremost
- _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null`
-
- if test ! -d "$_G_tmpdir"; then
- # Failing that, at least try and use $RANDOM to avoid a race
- _G_tmpdir=$_G_template-${RANDOM-0}$$
-
- func_mktempdir_umask=`umask`
- umask 0077
- $MKDIR "$_G_tmpdir"
- umask $func_mktempdir_umask
- fi
-
- # If we're not in dry-run mode, bomb out on failure
- test -d "$_G_tmpdir" || \
- func_fatal_error "cannot create temporary directory '$_G_tmpdir'"
- fi
-
- $ECHO "$_G_tmpdir"
-}
-
-
-# func_normal_abspath PATH
-# ------------------------
-# Remove doubled-up and trailing slashes, "." path components,
-# and cancel out any ".." path components in PATH after making
-# it an absolute path.
-func_normal_abspath ()
-{
- $debug_cmd
-
- # These SED scripts presuppose an absolute path with a trailing slash.
- _G_pathcar='s|^/\([^/]*\).*$|\1|'
- _G_pathcdr='s|^/[^/]*||'
- _G_removedotparts=':dotsl
- s|/\./|/|g
- t dotsl
- s|/\.$|/|'
- _G_collapseslashes='s|/\{1,\}|/|g'
- _G_finalslash='s|/*$|/|'
-
- # Start from root dir and reassemble the path.
- func_normal_abspath_result=
- func_normal_abspath_tpath=$1
- func_normal_abspath_altnamespace=
- case $func_normal_abspath_tpath in
- "")
- # Empty path, that just means $cwd.
- func_stripname '' '/' "`pwd`"
- func_normal_abspath_result=$func_stripname_result
- return
- ;;
- # The next three entries are used to spot a run of precisely
- # two leading slashes without using negated character classes;
- # we take advantage of case's first-match behaviour.
- ///*)
- # Unusual form of absolute path, do nothing.
- ;;
- //*)
- # Not necessarily an ordinary path; POSIX reserves leading '//'
- # and for example Cygwin uses it to access remote file shares
- # over CIFS/SMB, so we conserve a leading double slash if found.
- func_normal_abspath_altnamespace=/
- ;;
- /*)
- # Absolute path, do nothing.
- ;;
- *)
- # Relative path, prepend $cwd.
- func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
- ;;
- esac
-
- # Cancel out all the simple stuff to save iterations. We also want
- # the path to end with a slash for ease of parsing, so make sure
- # there is one (and only one) here.
- func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
- -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"`
- while :; do
- # Processed it all yet?
- if test / = "$func_normal_abspath_tpath"; then
- # If we ascended to the root using ".." the result may be empty now.
- if test -z "$func_normal_abspath_result"; then
- func_normal_abspath_result=/
- fi
- break
- fi
- func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
- -e "$_G_pathcar"`
- func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
- -e "$_G_pathcdr"`
- # Figure out what to do with it
- case $func_normal_abspath_tcomponent in
- "")
- # Trailing empty path component, ignore it.
- ;;
- ..)
- # Parent dir; strip last assembled component from result.
- func_dirname "$func_normal_abspath_result"
- func_normal_abspath_result=$func_dirname_result
- ;;
- *)
- # Actual path component, append it.
- func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent"
- ;;
- esac
- done
- # Restore leading double-slash if one was found on entry.
- func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
-}
-
-
-# func_notquiet ARG...
-# --------------------
-# Echo program name prefixed message only when not in quiet mode.
-func_notquiet ()
-{
- $debug_cmd
-
- $opt_quiet || func_echo ${1+"$@"}
-
- # A bug in bash halts the script if the last line of a function
- # fails when set -e is in force, so we need another command to
- # work around that:
- :
-}
-
-
-# func_relative_path SRCDIR DSTDIR
-# --------------------------------
-# Set func_relative_path_result to the relative path from SRCDIR to DSTDIR.
-func_relative_path ()
-{
- $debug_cmd
-
- func_relative_path_result=
- func_normal_abspath "$1"
- func_relative_path_tlibdir=$func_normal_abspath_result
- func_normal_abspath "$2"
- func_relative_path_tbindir=$func_normal_abspath_result
-
- # Ascend the tree starting from libdir
- while :; do
- # check if we have found a prefix of bindir
- case $func_relative_path_tbindir in
- $func_relative_path_tlibdir)
- # found an exact match
- func_relative_path_tcancelled=
- break
- ;;
- $func_relative_path_tlibdir*)
- # found a matching prefix
- func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
- func_relative_path_tcancelled=$func_stripname_result
- if test -z "$func_relative_path_result"; then
- func_relative_path_result=.
- fi
- break
- ;;
- *)
- func_dirname $func_relative_path_tlibdir
- func_relative_path_tlibdir=$func_dirname_result
- if test -z "$func_relative_path_tlibdir"; then
- # Have to descend all the way to the root!
- func_relative_path_result=../$func_relative_path_result
- func_relative_path_tcancelled=$func_relative_path_tbindir
- break
- fi
- func_relative_path_result=../$func_relative_path_result
- ;;
- esac
- done
-
- # Now calculate path; take care to avoid doubling-up slashes.
- func_stripname '' '/' "$func_relative_path_result"
- func_relative_path_result=$func_stripname_result
- func_stripname '/' '/' "$func_relative_path_tcancelled"
- if test -n "$func_stripname_result"; then
- func_append func_relative_path_result "/$func_stripname_result"
- fi
-
- # Normalisation. If bindir is libdir, return '.' else relative path.
- if test -n "$func_relative_path_result"; then
- func_stripname './' '' "$func_relative_path_result"
- func_relative_path_result=$func_stripname_result
- fi
-
- test -n "$func_relative_path_result" || func_relative_path_result=.
-
- :
-}
-
-
-# func_quote_for_eval ARG...
-# --------------------------
-# Aesthetically quote ARGs to be evaled later.
-# This function returns two values:
-# i) func_quote_for_eval_result
-# double-quoted, suitable for a subsequent eval
-# ii) func_quote_for_eval_unquoted_result
-# has all characters that are still active within double
-# quotes backslashified.
-func_quote_for_eval ()
-{
- $debug_cmd
-
- func_quote_for_eval_unquoted_result=
- func_quote_for_eval_result=
- while test 0 -lt $#; do
- case $1 in
- *[\\\`\"\$]*)
- _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;;
- *)
- _G_unquoted_arg=$1 ;;
- esac
- if test -n "$func_quote_for_eval_unquoted_result"; then
- func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg"
- else
- func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg"
- fi
-
- case $_G_unquoted_arg in
- # Double-quote args containing shell metacharacters to delay
- # word splitting, command substitution and variable expansion
- # for a subsequent eval.
- # Many Bourne shells cannot handle close brackets correctly
- # in scan sets, so we specify it separately.
- *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
- _G_quoted_arg=\"$_G_unquoted_arg\"
- ;;
- *)
- _G_quoted_arg=$_G_unquoted_arg
- ;;
- esac
-
- if test -n "$func_quote_for_eval_result"; then
- func_append func_quote_for_eval_result " $_G_quoted_arg"
- else
- func_append func_quote_for_eval_result "$_G_quoted_arg"
- fi
- shift
- done
-}
-
-
-# func_quote_for_expand ARG
-# -------------------------
-# Aesthetically quote ARG to be evaled later; same as above,
-# but do not quote variable references.
-func_quote_for_expand ()
-{
- $debug_cmd
-
- case $1 in
- *[\\\`\"]*)
- _G_arg=`$ECHO "$1" | $SED \
- -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;;
- *)
- _G_arg=$1 ;;
- esac
-
- case $_G_arg in
- # Double-quote args containing shell metacharacters to delay
- # word splitting and command substitution for a subsequent eval.
- # Many Bourne shells cannot handle close brackets correctly
- # in scan sets, so we specify it separately.
- *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
- _G_arg=\"$_G_arg\"
- ;;
- esac
-
- func_quote_for_expand_result=$_G_arg
-}
-
-
-# func_stripname PREFIX SUFFIX NAME
-# ---------------------------------
-# strip PREFIX and SUFFIX from NAME, and store in func_stripname_result.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-if test yes = "$_G_HAVE_XSI_OPS"; then
- eval 'func_stripname ()
- {
- $debug_cmd
-
- # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
- # positional parameters, so assign one to ordinary variable first.
- func_stripname_result=$3
- func_stripname_result=${func_stripname_result#"$1"}
- func_stripname_result=${func_stripname_result%"$2"}
- }'
-else
- func_stripname ()
- {
- $debug_cmd
-
- case $2 in
- .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;;
- *) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;;
- esac
- }
-fi
-
-
-# func_show_eval CMD [FAIL_EXP]
-# -----------------------------
-# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is
-# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it.
-func_show_eval ()
-{
- $debug_cmd
-
- _G_cmd=$1
- _G_fail_exp=${2-':'}
-
- func_quote_for_expand "$_G_cmd"
- eval "func_notquiet $func_quote_for_expand_result"
-
- $opt_dry_run || {
- eval "$_G_cmd"
- _G_status=$?
- if test 0 -ne "$_G_status"; then
- eval "(exit $_G_status); $_G_fail_exp"
- fi
- }
-}
-
-
-# func_show_eval_locale CMD [FAIL_EXP]
-# ------------------------------------
-# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is
-# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it. Use the saved locale for evaluation.
-func_show_eval_locale ()
-{
- $debug_cmd
-
- _G_cmd=$1
- _G_fail_exp=${2-':'}
-
- $opt_quiet || {
- func_quote_for_expand "$_G_cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
-
- $opt_dry_run || {
- eval "$_G_user_locale
- $_G_cmd"
- _G_status=$?
- eval "$_G_safe_locale"
- if test 0 -ne "$_G_status"; then
- eval "(exit $_G_status); $_G_fail_exp"
- fi
- }
-}
-
-
-# func_tr_sh
-# ----------
-# Turn $1 into a string suitable for a shell variable name.
-# Result is stored in $func_tr_sh_result. All characters
-# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
-# if $1 begins with a digit, a '_' is prepended as well.
-func_tr_sh ()
-{
- $debug_cmd
-
- case $1 in
- [0-9]* | *[!a-zA-Z0-9_]*)
- func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'`
- ;;
- * )
- func_tr_sh_result=$1
- ;;
- esac
-}
-
-
-# func_verbose ARG...
-# -------------------
-# Echo program name prefixed message in verbose mode only.
-func_verbose ()
-{
- $debug_cmd
-
- $opt_verbose && func_echo "$*"
-
- :
-}
-
-
-# func_warn_and_continue ARG...
-# -----------------------------
-# Echo program name prefixed warning message to standard error.
-func_warn_and_continue ()
-{
- $debug_cmd
-
- $require_term_colors
-
- func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2
-}
-
-
-# func_warning CATEGORY ARG...
-# ----------------------------
-# Echo program name prefixed warning message to standard error. Warning
-# messages can be filtered according to CATEGORY, where this function
-# elides messages where CATEGORY is not listed in the global variable
-# 'opt_warning_types'.
-func_warning ()
-{
- $debug_cmd
-
- # CATEGORY must be in the warning_categories list!
- case " $warning_categories " in
- *" $1 "*) ;;
- *) func_internal_error "invalid warning category '$1'" ;;
- esac
-
- _G_category=$1
- shift
-
- case " $opt_warning_types " in
- *" $_G_category "*) $warning_func ${1+"$@"} ;;
- esac
-}
-
-
-# func_sort_ver VER1 VER2
-# -----------------------
-# 'sort -V' is not generally available.
-# Note this deviates from the version comparison in automake
-# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
-# but this should suffice as we won't be specifying old
-# version formats or redundant trailing .0 in bootstrap.conf.
-# If we did want full compatibility then we should probably
-# use m4_version_compare from autoconf.
-func_sort_ver ()
-{
- $debug_cmd
-
- printf '%s\n%s\n' "$1" "$2" \
- | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n
-}
-
-# func_lt_ver PREV CURR
-# ---------------------
-# Return true if PREV and CURR are in the correct order according to
-# func_sort_ver, otherwise false. Use it like this:
-#
-# func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..."
-func_lt_ver ()
-{
- $debug_cmd
-
- test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q`
-}
-
-
-# Local variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
-# time-stamp-time-zone: "UTC"
-# End:
-#! /bin/sh
-
-# Set a version string for this script.
-scriptversion=2014-01-07.03; # UTC
-
-# A portable, pluggable option parser for Bourne shell.
-# Written by Gary V. Vaughan, 2010
-
-# Copyright (C) 2010-2015 Free Software Foundation, Inc.
-# This is free software; see the source for copying conditions. There is NO
-# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-# Please report bugs or propose patches to gary@gnu.org.
-
-
-## ------ ##
-## Usage. ##
-## ------ ##
-
-# This file is a library for parsing options in your shell scripts along
-# with assorted other useful supporting features that you can make use
-# of too.
-#
-# For the simplest scripts you might need only:
-#
-# #!/bin/sh
-# . relative/path/to/funclib.sh
-# . relative/path/to/options-parser
-# scriptversion=1.0
-# func_options ${1+"$@"}
-# eval set dummy "$func_options_result"; shift
-# ...rest of your script...
-#
-# In order for the '--version' option to work, you will need to have a
-# suitably formatted comment like the one at the top of this file
-# starting with '# Written by ' and ending with '# warranty; '.
-#
-# For '-h' and '--help' to work, you will also need a one line
-# description of your script's purpose in a comment directly above the
-# '# Written by ' line, like the one at the top of this file.
-#
-# The default options also support '--debug', which will turn on shell
-# execution tracing (see the comment above debug_cmd below for another
-# use), and '--verbose' and the func_verbose function to allow your script
-# to display verbose messages only when your user has specified
-# '--verbose'.
-#
-# After sourcing this file, you can plug processing for additional
-# options by amending the variables from the 'Configuration' section
-# below, and following the instructions in the 'Option parsing'
-# section further down.
-
-## -------------- ##
-## Configuration. ##
-## -------------- ##
-
-# You should override these variables in your script after sourcing this
-# file so that they reflect the customisations you have added to the
-# option parser.
-
-# The usage line for option parsing errors and the start of '-h' and
-# '--help' output messages. You can embed shell variables for delayed
-# expansion at the time the message is displayed, but you will need to
-# quote other shell meta-characters carefully to prevent them being
-# expanded when the contents are evaled.
-usage='$progpath [OPTION]...'
-
-# Short help message in response to '-h' and '--help'. Add to this or
-# override it after sourcing this library to reflect the full set of
-# options your script accepts.
-usage_message="\
- --debug enable verbose shell tracing
- -W, --warnings=CATEGORY
- report the warnings falling in CATEGORY [all]
- -v, --verbose verbosely report processing
- --version print version information and exit
- -h, --help print short or long help message and exit
-"
-
-# Additional text appended to 'usage_message' in response to '--help'.
-long_help_message="
-Warning categories include:
- 'all' show all warnings
- 'none' turn off all the warnings
- 'error' warnings are treated as fatal errors"
-
-# Help message printed before fatal option parsing errors.
-fatal_help="Try '\$progname --help' for more information."
-
-
-
-## ------------------------- ##
-## Hook function management. ##
-## ------------------------- ##
-
-# This section contains functions for adding, removing, and running hooks
-# to the main code. A hook is just a named list of of function, that can
-# be run in order later on.
-
-# func_hookable FUNC_NAME
-# -----------------------
-# Declare that FUNC_NAME will run hooks added with
-# 'func_add_hook FUNC_NAME ...'.
-func_hookable ()
-{
- $debug_cmd
-
- func_append hookable_fns " $1"
-}
-
-
-# func_add_hook FUNC_NAME HOOK_FUNC
-# ---------------------------------
-# Request that FUNC_NAME call HOOK_FUNC before it returns. FUNC_NAME must
-# first have been declared "hookable" by a call to 'func_hookable'.
-func_add_hook ()
-{
- $debug_cmd
-
- case " $hookable_fns " in
- *" $1 "*) ;;
- *) func_fatal_error "'$1' does not accept hook functions." ;;
- esac
-
- eval func_append ${1}_hooks '" $2"'
-}
-
-
-# func_remove_hook FUNC_NAME HOOK_FUNC
-# ------------------------------------
-# Remove HOOK_FUNC from the list of functions called by FUNC_NAME.
-func_remove_hook ()
-{
- $debug_cmd
-
- eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`'
-}
-
-
-# func_run_hooks FUNC_NAME [ARG]...
-# ---------------------------------
-# Run all hook functions registered to FUNC_NAME.
-# It is assumed that the list of hook functions contains nothing more
-# than a whitespace-delimited list of legal shell function names, and
-# no effort is wasted trying to catch shell meta-characters or preserve
-# whitespace.
-func_run_hooks ()
-{
- $debug_cmd
-
- case " $hookable_fns " in
- *" $1 "*) ;;
- *) func_fatal_error "'$1' does not support hook funcions.n" ;;
- esac
-
- eval _G_hook_fns=\$$1_hooks; shift
-
- for _G_hook in $_G_hook_fns; do
- eval $_G_hook '"$@"'
-
- # store returned options list back into positional
- # parameters for next 'cmd' execution.
- eval _G_hook_result=\$${_G_hook}_result
- eval set dummy "$_G_hook_result"; shift
- done
-
- func_quote_for_eval ${1+"$@"}
- func_run_hooks_result=$func_quote_for_eval_result
-}
-
-
-
-## --------------- ##
-## Option parsing. ##
-## --------------- ##
-
-# In order to add your own option parsing hooks, you must accept the
-# full positional parameter list in your hook function, remove any
-# options that you action, and then pass back the remaining unprocessed
-# options in '<hooked_function_name>_result', escaped suitably for
-# 'eval'. Like this:
-#
-# my_options_prep ()
-# {
-# $debug_cmd
-#
-# # Extend the existing usage message.
-# usage_message=$usage_message'
-# -s, --silent don'\''t print informational messages
-# '
-#
-# func_quote_for_eval ${1+"$@"}
-# my_options_prep_result=$func_quote_for_eval_result
-# }
-# func_add_hook func_options_prep my_options_prep
-#
-#
-# my_silent_option ()
-# {
-# $debug_cmd
-#
-# # Note that for efficiency, we parse as many options as we can
-# # recognise in a loop before passing the remainder back to the
-# # caller on the first unrecognised argument we encounter.
-# while test $# -gt 0; do
-# opt=$1; shift
-# case $opt in
-# --silent|-s) opt_silent=: ;;
-# # Separate non-argument short options:
-# -s*) func_split_short_opt "$_G_opt"
-# set dummy "$func_split_short_opt_name" \
-# "-$func_split_short_opt_arg" ${1+"$@"}
-# shift
-# ;;
-# *) set dummy "$_G_opt" "$*"; shift; break ;;
-# esac
-# done
-#
-# func_quote_for_eval ${1+"$@"}
-# my_silent_option_result=$func_quote_for_eval_result
-# }
-# func_add_hook func_parse_options my_silent_option
-#
-#
-# my_option_validation ()
-# {
-# $debug_cmd
-#
-# $opt_silent && $opt_verbose && func_fatal_help "\
-# '--silent' and '--verbose' options are mutually exclusive."
-#
-# func_quote_for_eval ${1+"$@"}
-# my_option_validation_result=$func_quote_for_eval_result
-# }
-# func_add_hook func_validate_options my_option_validation
-#
-# You'll alse need to manually amend $usage_message to reflect the extra
-# options you parse. It's preferable to append if you can, so that
-# multiple option parsing hooks can be added safely.
-
-
-# func_options [ARG]...
-# ---------------------
-# All the functions called inside func_options are hookable. See the
-# individual implementations for details.
-func_hookable func_options
-func_options ()
-{
- $debug_cmd
-
- func_options_prep ${1+"$@"}
- eval func_parse_options \
- ${func_options_prep_result+"$func_options_prep_result"}
- eval func_validate_options \
- ${func_parse_options_result+"$func_parse_options_result"}
-
- eval func_run_hooks func_options \
- ${func_validate_options_result+"$func_validate_options_result"}
-
- # save modified positional parameters for caller
- func_options_result=$func_run_hooks_result
-}
-
-
-# func_options_prep [ARG]...
-# --------------------------
-# All initialisations required before starting the option parse loop.
-# Note that when calling hook functions, we pass through the list of
-# positional parameters. If a hook function modifies that list, and
-# needs to propogate that back to rest of this script, then the complete
-# modified list must be put in 'func_run_hooks_result' before
-# returning.
-func_hookable func_options_prep
-func_options_prep ()
-{
- $debug_cmd
-
- # Option defaults:
- opt_verbose=false
- opt_warning_types=
-
- func_run_hooks func_options_prep ${1+"$@"}
-
- # save modified positional parameters for caller
- func_options_prep_result=$func_run_hooks_result
-}
-
-
-# func_parse_options [ARG]...
-# ---------------------------
-# The main option parsing loop.
-func_hookable func_parse_options
-func_parse_options ()
-{
- $debug_cmd
-
- func_parse_options_result=
-
- # this just eases exit handling
- while test $# -gt 0; do
- # Defer to hook functions for initial option parsing, so they
- # get priority in the event of reusing an option name.
- func_run_hooks func_parse_options ${1+"$@"}
-
- # Adjust func_parse_options positional parameters to match
- eval set dummy "$func_run_hooks_result"; shift
-
- # Break out of the loop if we already parsed every option.
- test $# -gt 0 || break
-
- _G_opt=$1
- shift
- case $_G_opt in
- --debug|-x) debug_cmd='set -x'
- func_echo "enabling shell trace mode"
- $debug_cmd
- ;;
-
- --no-warnings|--no-warning|--no-warn)
- set dummy --warnings none ${1+"$@"}
- shift
- ;;
-
- --warnings|--warning|-W)
- test $# = 0 && func_missing_arg $_G_opt && break
- case " $warning_categories $1" in
- *" $1 "*)
- # trailing space prevents matching last $1 above
- func_append_uniq opt_warning_types " $1"
- ;;
- *all)
- opt_warning_types=$warning_categories
- ;;
- *none)
- opt_warning_types=none
- warning_func=:
- ;;
- *error)
- opt_warning_types=$warning_categories
- warning_func=func_fatal_error
- ;;
- *)
- func_fatal_error \
- "unsupported warning category: '$1'"
- ;;
- esac
- shift
- ;;
-
- --verbose|-v) opt_verbose=: ;;
- --version) func_version ;;
- -\?|-h) func_usage ;;
- --help) func_help ;;
-
- # Separate optargs to long options (plugins may need this):
- --*=*) func_split_equals "$_G_opt"
- set dummy "$func_split_equals_lhs" \
- "$func_split_equals_rhs" ${1+"$@"}
- shift
- ;;
-
- # Separate optargs to short options:
- -W*)
- func_split_short_opt "$_G_opt"
- set dummy "$func_split_short_opt_name" \
- "$func_split_short_opt_arg" ${1+"$@"}
- shift
- ;;
-
- # Separate non-argument short options:
- -\?*|-h*|-v*|-x*)
- func_split_short_opt "$_G_opt"
- set dummy "$func_split_short_opt_name" \
- "-$func_split_short_opt_arg" ${1+"$@"}
- shift
- ;;
-
- --) break ;;
- -*) func_fatal_help "unrecognised option: '$_G_opt'" ;;
- *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;;
- esac
- done
-
- # save modified positional parameters for caller
- func_quote_for_eval ${1+"$@"}
- func_parse_options_result=$func_quote_for_eval_result
-}
-
-
-# func_validate_options [ARG]...
-# ------------------------------
-# Perform any sanity checks on option settings and/or unconsumed
-# arguments.
-func_hookable func_validate_options
-func_validate_options ()
-{
- $debug_cmd
-
- # Display all warnings if -W was not given.
- test -n "$opt_warning_types" || opt_warning_types=" $warning_categories"
-
- func_run_hooks func_validate_options ${1+"$@"}
-
- # Bail if the options were screwed!
- $exit_cmd $EXIT_FAILURE
-
- # save modified positional parameters for caller
- func_validate_options_result=$func_run_hooks_result
-}
-
-
-
-## ----------------- ##
-## Helper functions. ##
-## ----------------- ##
-
-# This section contains the helper functions used by the rest of the
-# hookable option parser framework in ascii-betical order.
-
-
-# func_fatal_help ARG...
-# ----------------------
-# Echo program name prefixed message to standard error, followed by
-# a help hint, and exit.
-func_fatal_help ()
-{
- $debug_cmd
-
- eval \$ECHO \""Usage: $usage"\"
- eval \$ECHO \""$fatal_help"\"
- func_error ${1+"$@"}
- exit $EXIT_FAILURE
-}
-
-
-# func_help
-# ---------
-# Echo long help message to standard output and exit.
-func_help ()
-{
- $debug_cmd
-
- func_usage_message
- $ECHO "$long_help_message"
- exit 0
-}
-
-
-# func_missing_arg ARGNAME
-# ------------------------
-# Echo program name prefixed message to standard error and set global
-# exit_cmd.
-func_missing_arg ()
-{
- $debug_cmd
-
- func_error "Missing argument for '$1'."
- exit_cmd=exit
-}
-
-
-# func_split_equals STRING
-# ------------------------
-# Set func_split_equals_lhs and func_split_equals_rhs shell variables after
-# splitting STRING at the '=' sign.
-test -z "$_G_HAVE_XSI_OPS" \
- && (eval 'x=a/b/c;
- test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
- && _G_HAVE_XSI_OPS=yes
-
-if test yes = "$_G_HAVE_XSI_OPS"
-then
- # This is an XSI compatible shell, allowing a faster implementation...
- eval 'func_split_equals ()
- {
- $debug_cmd
-
- func_split_equals_lhs=${1%%=*}
- func_split_equals_rhs=${1#*=}
- test "x$func_split_equals_lhs" = "x$1" \
- && func_split_equals_rhs=
- }'
-else
- # ...otherwise fall back to using expr, which is often a shell builtin.
- func_split_equals ()
- {
- $debug_cmd
-
- func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'`
- func_split_equals_rhs=
- test "x$func_split_equals_lhs" = "x$1" \
- || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'`
- }
-fi #func_split_equals
-
-
-# func_split_short_opt SHORTOPT
-# -----------------------------
-# Set func_split_short_opt_name and func_split_short_opt_arg shell
-# variables after splitting SHORTOPT after the 2nd character.
-if test yes = "$_G_HAVE_XSI_OPS"
-then
- # This is an XSI compatible shell, allowing a faster implementation...
- eval 'func_split_short_opt ()
- {
- $debug_cmd
-
- func_split_short_opt_arg=${1#??}
- func_split_short_opt_name=${1%"$func_split_short_opt_arg"}
- }'
-else
- # ...otherwise fall back to using expr, which is often a shell builtin.
- func_split_short_opt ()
- {
- $debug_cmd
-
- func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'`
- func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'`
- }
-fi #func_split_short_opt
-
-
-# func_usage
-# ----------
-# Echo short help message to standard output and exit.
-func_usage ()
-{
- $debug_cmd
-
- func_usage_message
- $ECHO "Run '$progname --help |${PAGER-more}' for full usage"
- exit 0
-}
-
-
-# func_usage_message
-# ------------------
-# Echo short help message to standard output.
-func_usage_message ()
-{
- $debug_cmd
-
- eval \$ECHO \""Usage: $usage"\"
- echo
- $SED -n 's|^# ||
- /^Written by/{
- x;p;x
- }
- h
- /^Written by/q' < "$progpath"
- echo
- eval \$ECHO \""$usage_message"\"
-}
-
-
-# func_version
-# ------------
-# Echo version message to standard output and exit.
-func_version ()
-{
- $debug_cmd
-
- printf '%s\n' "$progname $scriptversion"
- $SED -n '
- /(C)/!b go
- :more
- /\./!{
- N
- s|\n# | |
- b more
- }
- :go
- /^# Written by /,/# warranty; / {
- s|^# ||
- s|^# *$||
- s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2|
- p
- }
- /^# Written by / {
- s|^# ||
- p
- }
- /^warranty; /q' < "$progpath"
-
- exit $?
-}
-
-
-# Local variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
-# time-stamp-time-zone: "UTC"
-# End:
-
-# Set a version string.
-scriptversion='(GNU libtool) 2.4.6'
-
-
-# func_echo ARG...
-# ----------------
-# Libtool also displays the current mode in messages, so override
-# funclib.sh func_echo with this custom definition.
-func_echo ()
-{
- $debug_cmd
-
- _G_message=$*
-
- func_echo_IFS=$IFS
- IFS=$nl
- for _G_line in $_G_message; do
- IFS=$func_echo_IFS
- $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line"
- done
- IFS=$func_echo_IFS
-}
-
-
-# func_warning ARG...
-# -------------------
-# Libtool warnings are not categorized, so override funclib.sh
-# func_warning with this simpler definition.
-func_warning ()
-{
- $debug_cmd
-
- $warning_func ${1+"$@"}
-}
-
-
-## ---------------- ##
-## Options parsing. ##
-## ---------------- ##
-
-# Hook in the functions to make sure our own options are parsed during
-# the option parsing loop.
-
-usage='$progpath [OPTION]... [MODE-ARG]...'
-
-# Short help message in response to '-h'.
-usage_message="Options:
- --config show all configuration variables
- --debug enable verbose shell tracing
- -n, --dry-run display commands without modifying any files
- --features display basic configuration information and exit
- --mode=MODE use operation mode MODE
- --no-warnings equivalent to '-Wnone'
- --preserve-dup-deps don't remove duplicate dependency libraries
- --quiet, --silent don't print informational messages
- --tag=TAG use configuration variables from tag TAG
- -v, --verbose print more informational messages than default
- --version print version information
- -W, --warnings=CATEGORY report the warnings falling in CATEGORY [all]
- -h, --help, --help-all print short, long, or detailed help message
-"
-
-# Additional text appended to 'usage_message' in response to '--help'.
-func_help ()
-{
- $debug_cmd
-
- func_usage_message
- $ECHO "$long_help_message
-
-MODE must be one of the following:
-
- clean remove files from the build directory
- compile compile a source file into a libtool object
- execute automatically set library path, then run a program
- finish complete the installation of libtool libraries
- install install libraries or executables
- link create a library or an executable
- uninstall remove libraries from an installed directory
-
-MODE-ARGS vary depending on the MODE. When passed as first option,
-'--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that.
-Try '$progname --help --mode=MODE' for a more detailed description of MODE.
-
-When reporting a bug, please describe a test case to reproduce it and
-include the following information:
-
- host-triplet: $host
- shell: $SHELL
- compiler: $LTCC
- compiler flags: $LTCFLAGS
- linker: $LD (gnu? $with_gnu_ld)
- version: $progname (GNU libtool) 2.4.6
- automake: `($AUTOMAKE --version) 2>/dev/null |$SED 1q`
- autoconf: `($AUTOCONF --version) 2>/dev/null |$SED 1q`
-
-Report bugs to <bug-libtool@gnu.org>.
-GNU libtool home page: <http://www.gnu.org/software/libtool/>.
-General help using GNU software: <http://www.gnu.org/gethelp/>."
- exit 0
-}
-
-
-# func_lo2o OBJECT-NAME
-# ---------------------
-# Transform OBJECT-NAME from a '.lo' suffix to the platform specific
-# object suffix.
-
-lo2o=s/\\.lo\$/.$objext/
-o2lo=s/\\.$objext\$/.lo/
-
-if test yes = "$_G_HAVE_XSI_OPS"; then
- eval 'func_lo2o ()
- {
- case $1 in
- *.lo) func_lo2o_result=${1%.lo}.$objext ;;
- * ) func_lo2o_result=$1 ;;
- esac
- }'
-
- # func_xform LIBOBJ-OR-SOURCE
- # ---------------------------
- # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise)
- # suffix to a '.lo' libtool-object suffix.
- eval 'func_xform ()
- {
- func_xform_result=${1%.*}.lo
- }'
-else
- # ...otherwise fall back to using sed.
- func_lo2o ()
- {
- func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"`
- }
-
- func_xform ()
- {
- func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'`
- }
-fi
-
-
-# func_fatal_configuration ARG...
-# -------------------------------
-# Echo program name prefixed message to standard error, followed by
-# a configuration failure hint, and exit.
-func_fatal_configuration ()
-{
- func__fatal_error ${1+"$@"} \
- "See the $PACKAGE documentation for more information." \
- "Fatal configuration error."
-}
-
-
-# func_config
-# -----------
-# Display the configuration for all the tags in this script.
-func_config ()
-{
- re_begincf='^# ### BEGIN LIBTOOL'
- re_endcf='^# ### END LIBTOOL'
-
- # Default configuration.
- $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath"
-
- # Now print the configurations for the tags.
- for tagname in $taglist; do
- $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath"
- done
-
- exit $?
-}
-
-
-# func_features
-# -------------
-# Display the features supported by this script.
-func_features ()
-{
- echo "host: $host"
- if test yes = "$build_libtool_libs"; then
- echo "enable shared libraries"
- else
- echo "disable shared libraries"
- fi
- if test yes = "$build_old_libs"; then
- echo "enable static libraries"
- else
- echo "disable static libraries"
- fi
-
- exit $?
-}
-
-
-# func_enable_tag TAGNAME
-# -----------------------
-# Verify that TAGNAME is valid, and either flag an error and exit, or
-# enable the TAGNAME tag. We also add TAGNAME to the global $taglist
-# variable here.
-func_enable_tag ()
-{
- # Global variable:
- tagname=$1
-
- re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
- re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
- sed_extractcf=/$re_begincf/,/$re_endcf/p
-
- # Validate tagname.
- case $tagname in
- *[!-_A-Za-z0-9,/]*)
- func_fatal_error "invalid tag name: $tagname"
- ;;
- esac
-
- # Don't test for the "default" C tag, as we know it's
- # there but not specially marked.
- case $tagname in
- CC) ;;
- *)
- if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
- taglist="$taglist $tagname"
-
- # Evaluate the configuration. Be careful to quote the path
- # and the sed script, to avoid splitting on whitespace, but
- # also don't use non-portable quotes within backquotes within
- # quotes we have to do it in 2 steps:
- extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
- eval "$extractedcf"
- else
- func_error "ignoring unknown tag $tagname"
- fi
- ;;
- esac
-}
-
-
-# func_check_version_match
-# ------------------------
-# Ensure that we are using m4 macros, and libtool script from the same
-# release of libtool.
-func_check_version_match ()
-{
- if test "$package_revision" != "$macro_revision"; then
- if test "$VERSION" != "$macro_version"; then
- if test -z "$macro_version"; then
- cat >&2 <<_LT_EOF
-$progname: Version mismatch error. This is $PACKAGE $VERSION, but the
-$progname: definition of this LT_INIT comes from an older release.
-$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
-$progname: and run autoconf again.
-_LT_EOF
- else
- cat >&2 <<_LT_EOF
-$progname: Version mismatch error. This is $PACKAGE $VERSION, but the
-$progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
-$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
-$progname: and run autoconf again.
-_LT_EOF
- fi
- else
- cat >&2 <<_LT_EOF
-$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision,
-$progname: but the definition of this LT_INIT comes from revision $macro_revision.
-$progname: You should recreate aclocal.m4 with macros from revision $package_revision
-$progname: of $PACKAGE $VERSION and run autoconf again.
-_LT_EOF
- fi
-
- exit $EXIT_MISMATCH
- fi
-}
-
-
-# libtool_options_prep [ARG]...
-# -----------------------------
-# Preparation for options parsed by libtool.
-libtool_options_prep ()
-{
- $debug_mode
-
- # Option defaults:
- opt_config=false
- opt_dlopen=
- opt_dry_run=false
- opt_help=false
- opt_mode=
- opt_preserve_dup_deps=false
- opt_quiet=false
-
- nonopt=
- preserve_args=
-
- # Shorthand for --mode=foo, only valid as the first argument
- case $1 in
- clean|clea|cle|cl)
- shift; set dummy --mode clean ${1+"$@"}; shift
- ;;
- compile|compil|compi|comp|com|co|c)
- shift; set dummy --mode compile ${1+"$@"}; shift
- ;;
- execute|execut|execu|exec|exe|ex|e)
- shift; set dummy --mode execute ${1+"$@"}; shift
- ;;
- finish|finis|fini|fin|fi|f)
- shift; set dummy --mode finish ${1+"$@"}; shift
- ;;
- install|instal|insta|inst|ins|in|i)
- shift; set dummy --mode install ${1+"$@"}; shift
- ;;
- link|lin|li|l)
- shift; set dummy --mode link ${1+"$@"}; shift
- ;;
- uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
- shift; set dummy --mode uninstall ${1+"$@"}; shift
- ;;
- esac
-
- # Pass back the list of options.
- func_quote_for_eval ${1+"$@"}
- libtool_options_prep_result=$func_quote_for_eval_result
-}
-func_add_hook func_options_prep libtool_options_prep
-
-
-# libtool_parse_options [ARG]...
-# ---------------------------------
-# Provide handling for libtool specific options.
-libtool_parse_options ()
-{
- $debug_cmd
-
- # Perform our own loop to consume as many options as possible in
- # each iteration.
- while test $# -gt 0; do
- _G_opt=$1
- shift
- case $_G_opt in
- --dry-run|--dryrun|-n)
- opt_dry_run=:
- ;;
-
- --config) func_config ;;
-
- --dlopen|-dlopen)
- opt_dlopen="${opt_dlopen+$opt_dlopen
-}$1"
- shift
- ;;
-
- --preserve-dup-deps)
- opt_preserve_dup_deps=: ;;
-
- --features) func_features ;;
-
- --finish) set dummy --mode finish ${1+"$@"}; shift ;;
-
- --help) opt_help=: ;;
-
- --help-all) opt_help=': help-all' ;;
-
- --mode) test $# = 0 && func_missing_arg $_G_opt && break
- opt_mode=$1
- case $1 in
- # Valid mode arguments:
- clean|compile|execute|finish|install|link|relink|uninstall) ;;
-
- # Catch anything else as an error
- *) func_error "invalid argument for $_G_opt"
- exit_cmd=exit
- break
- ;;
- esac
- shift
- ;;
-
- --no-silent|--no-quiet)
- opt_quiet=false
- func_append preserve_args " $_G_opt"
- ;;
-
- --no-warnings|--no-warning|--no-warn)
- opt_warning=false
- func_append preserve_args " $_G_opt"
- ;;
-
- --no-verbose)
- opt_verbose=false
- func_append preserve_args " $_G_opt"
- ;;
-
- --silent|--quiet)
- opt_quiet=:
- opt_verbose=false
- func_append preserve_args " $_G_opt"
- ;;
-
- --tag) test $# = 0 && func_missing_arg $_G_opt && break
- opt_tag=$1
- func_append preserve_args " $_G_opt $1"
- func_enable_tag "$1"
- shift
- ;;
-
- --verbose|-v) opt_quiet=false
- opt_verbose=:
- func_append preserve_args " $_G_opt"
- ;;
-
- # An option not handled by this hook function:
- *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;;
- esac
- done
-
-
- # save modified positional parameters for caller
- func_quote_for_eval ${1+"$@"}
- libtool_parse_options_result=$func_quote_for_eval_result
-}
-func_add_hook func_parse_options libtool_parse_options
-
-
-
-# libtool_validate_options [ARG]...
-# ---------------------------------
-# Perform any sanity checks on option settings and/or unconsumed
-# arguments.
-libtool_validate_options ()
-{
- # save first non-option argument
- if test 0 -lt $#; then
- nonopt=$1
- shift
- fi
-
- # preserve --debug
- test : = "$debug_cmd" || func_append preserve_args " --debug"
-
- case $host in
- # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452
- # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788
- *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*)
- # don't eliminate duplications in $postdeps and $predeps
- opt_duplicate_compiler_generated_deps=:
- ;;
- *)
- opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps
- ;;
- esac
-
- $opt_help || {
- # Sanity checks first:
- func_check_version_match
-
- test yes != "$build_libtool_libs" \
- && test yes != "$build_old_libs" \
- && func_fatal_configuration "not configured to build any kind of library"
-
- # Darwin sucks
- eval std_shrext=\"$shrext_cmds\"
-
- # Only execute mode is allowed to have -dlopen flags.
- if test -n "$opt_dlopen" && test execute != "$opt_mode"; then
- func_error "unrecognized option '-dlopen'"
- $ECHO "$help" 1>&2
- exit $EXIT_FAILURE
- fi
-
- # Change the help message to a mode-specific one.
- generic_help=$help
- help="Try '$progname --help --mode=$opt_mode' for more information."
- }
-
- # Pass back the unparsed argument list
- func_quote_for_eval ${1+"$@"}
- libtool_validate_options_result=$func_quote_for_eval_result
-}
-func_add_hook func_validate_options libtool_validate_options
-
-
-# Process options as early as possible so that --help and --version
-# can return quickly.
-func_options ${1+"$@"}
-eval set dummy "$func_options_result"; shift
-
-
-
-## ----------- ##
-## Main. ##
-## ----------- ##
-
-magic='%%%MAGIC variable%%%'
-magic_exe='%%%MAGIC EXE variable%%%'
-
-# Global variables.
-extracted_archives=
-extracted_serial=0
-
-# If this variable is set in any of the actions, the command in it
-# will be execed at the end. This prevents here-documents from being
-# left over by shells.
-exec_cmd=
-
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
- eval 'cat <<_LTECHO_EOF
-$1
-_LTECHO_EOF'
-}
-
-# func_generated_by_libtool
-# True iff stdin has been generated by Libtool. This function is only
-# a basic sanity check; it will hardly flush out determined imposters.
-func_generated_by_libtool_p ()
-{
- $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
-}
-
-# func_lalib_p file
-# True iff FILE is a libtool '.la' library or '.lo' object file.
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_lalib_p ()
-{
- test -f "$1" &&
- $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p
-}
-
-# func_lalib_unsafe_p file
-# True iff FILE is a libtool '.la' library or '.lo' object file.
-# This function implements the same check as func_lalib_p without
-# resorting to external programs. To this end, it redirects stdin and
-# closes it afterwards, without saving the original file descriptor.
-# As a safety measure, use it only where a negative result would be
-# fatal anyway. Works if 'file' does not exist.
-func_lalib_unsafe_p ()
-{
- lalib_p=no
- if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then
- for lalib_p_l in 1 2 3 4
- do
- read lalib_p_line
- case $lalib_p_line in
- \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
- esac
- done
- exec 0<&5 5<&-
- fi
- test yes = "$lalib_p"
-}
-
-# func_ltwrapper_script_p file
-# True iff FILE is a libtool wrapper script
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_script_p ()
-{
- test -f "$1" &&
- $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p
-}
-
-# func_ltwrapper_executable_p file
-# True iff FILE is a libtool wrapper executable
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_executable_p ()
-{
- func_ltwrapper_exec_suffix=
- case $1 in
- *.exe) ;;
- *) func_ltwrapper_exec_suffix=.exe ;;
- esac
- $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1
-}
-
-# func_ltwrapper_scriptname file
-# Assumes file is an ltwrapper_executable
-# uses $file to determine the appropriate filename for a
-# temporary ltwrapper_script.
-func_ltwrapper_scriptname ()
-{
- func_dirname_and_basename "$1" "" "."
- func_stripname '' '.exe' "$func_basename_result"
- func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper
-}
-
-# func_ltwrapper_p file
-# True iff FILE is a libtool wrapper script or wrapper executable
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_p ()
-{
- func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1"
-}
-
-
-# func_execute_cmds commands fail_cmd
-# Execute tilde-delimited COMMANDS.
-# If FAIL_CMD is given, eval that upon failure.
-# FAIL_CMD may read-access the current command in variable CMD!
-func_execute_cmds ()
-{
- $debug_cmd
-
- save_ifs=$IFS; IFS='~'
- for cmd in $1; do
- IFS=$sp$nl
- eval cmd=\"$cmd\"
- IFS=$save_ifs
- func_show_eval "$cmd" "${2-:}"
- done
- IFS=$save_ifs
-}
-
-
-# func_source file
-# Source FILE, adding directory component if necessary.
-# Note that it is not necessary on cygwin/mingw to append a dot to
-# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
-# behavior happens only for exec(3), not for open(2)! Also, sourcing
-# 'FILE.' does not work on cygwin managed mounts.
-func_source ()
-{
- $debug_cmd
-
- case $1 in
- */* | *\\*) . "$1" ;;
- *) . "./$1" ;;
- esac
-}
-
-
-# func_resolve_sysroot PATH
-# Replace a leading = in PATH with a sysroot. Store the result into
-# func_resolve_sysroot_result
-func_resolve_sysroot ()
-{
- func_resolve_sysroot_result=$1
- case $func_resolve_sysroot_result in
- =*)
- func_stripname '=' '' "$func_resolve_sysroot_result"
- func_resolve_sysroot_result=$lt_sysroot$func_stripname_result
- ;;
- esac
-}
-
-# func_replace_sysroot PATH
-# If PATH begins with the sysroot, replace it with = and
-# store the result into func_replace_sysroot_result.
-func_replace_sysroot ()
-{
- case $lt_sysroot:$1 in
- ?*:"$lt_sysroot"*)
- func_stripname "$lt_sysroot" '' "$1"
- func_replace_sysroot_result='='$func_stripname_result
- ;;
- *)
- # Including no sysroot.
- func_replace_sysroot_result=$1
- ;;
- esac
-}
-
-# func_infer_tag arg
-# Infer tagged configuration to use if any are available and
-# if one wasn't chosen via the "--tag" command line option.
-# Only attempt this if the compiler in the base compile
-# command doesn't match the default compiler.
-# arg is usually of the form 'gcc ...'
-func_infer_tag ()
-{
- $debug_cmd
-
- if test -n "$available_tags" && test -z "$tagname"; then
- CC_quoted=
- for arg in $CC; do
- func_append_quoted CC_quoted "$arg"
- done
- CC_expanded=`func_echo_all $CC`
- CC_quoted_expanded=`func_echo_all $CC_quoted`
- case $@ in
- # Blanks in the command may have been stripped by the calling shell,
- # but not from the CC environment variable when configure was run.
- " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
- " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;;
- # Blanks at the start of $base_compile will cause this to fail
- # if we don't check for them as well.
- *)
- for z in $available_tags; do
- if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
- # Evaluate the configuration.
- eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
- CC_quoted=
- for arg in $CC; do
- # Double-quote args containing other shell metacharacters.
- func_append_quoted CC_quoted "$arg"
- done
- CC_expanded=`func_echo_all $CC`
- CC_quoted_expanded=`func_echo_all $CC_quoted`
- case "$@ " in
- " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
- " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*)
- # The compiler in the base compile command matches
- # the one in the tagged configuration.
- # Assume this is the tagged configuration we want.
- tagname=$z
- break
- ;;
- esac
- fi
- done
- # If $tagname still isn't set, then no tagged configuration
- # was found and let the user know that the "--tag" command
- # line option must be used.
- if test -z "$tagname"; then
- func_echo "unable to infer tagged configuration"
- func_fatal_error "specify a tag with '--tag'"
-# else
-# func_verbose "using $tagname tagged configuration"
- fi
- ;;
- esac
- fi
-}
-
-
-
-# func_write_libtool_object output_name pic_name nonpic_name
-# Create a libtool object file (analogous to a ".la" file),
-# but don't create it if we're doing a dry run.
-func_write_libtool_object ()
-{
- write_libobj=$1
- if test yes = "$build_libtool_libs"; then
- write_lobj=\'$2\'
- else
- write_lobj=none
- fi
-
- if test yes = "$build_old_libs"; then
- write_oldobj=\'$3\'
- else
- write_oldobj=none
- fi
-
- $opt_dry_run || {
- cat >${write_libobj}T <<EOF
-# $write_libobj - a libtool object file
-# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object=$write_lobj
-
-# Name of the non-PIC object
-non_pic_object=$write_oldobj
-
-EOF
- $MV "${write_libobj}T" "$write_libobj"
- }
-}
-
-
-##################################################
-# FILE NAME AND PATH CONVERSION HELPER FUNCTIONS #
-##################################################
-
-# func_convert_core_file_wine_to_w32 ARG
-# Helper function used by file name conversion functions when $build is *nix,
-# and $host is mingw, cygwin, or some other w32 environment. Relies on a
-# correctly configured wine environment available, with the winepath program
-# in $build's $PATH.
-#
-# ARG is the $build file name to be converted to w32 format.
-# Result is available in $func_convert_core_file_wine_to_w32_result, and will
-# be empty on error (or when ARG is empty)
-func_convert_core_file_wine_to_w32 ()
-{
- $debug_cmd
-
- func_convert_core_file_wine_to_w32_result=$1
- if test -n "$1"; then
- # Unfortunately, winepath does not exit with a non-zero error code, so we
- # are forced to check the contents of stdout. On the other hand, if the
- # command is not found, the shell will set an exit code of 127 and print
- # *an error message* to stdout. So we must check for both error code of
- # zero AND non-empty stdout, which explains the odd construction:
- func_convert_core_file_wine_to_w32_tmp=`winepath -w "$1" 2>/dev/null`
- if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then
- func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" |
- $SED -e "$sed_naive_backslashify"`
- else
- func_convert_core_file_wine_to_w32_result=
- fi
- fi
-}
-# end: func_convert_core_file_wine_to_w32
-
-
-# func_convert_core_path_wine_to_w32 ARG
-# Helper function used by path conversion functions when $build is *nix, and
-# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly
-# configured wine environment available, with the winepath program in $build's
-# $PATH. Assumes ARG has no leading or trailing path separator characters.
-#
-# ARG is path to be converted from $build format to win32.
-# Result is available in $func_convert_core_path_wine_to_w32_result.
-# Unconvertible file (directory) names in ARG are skipped; if no directory names
-# are convertible, then the result may be empty.
-func_convert_core_path_wine_to_w32 ()
-{
- $debug_cmd
-
- # unfortunately, winepath doesn't convert paths, only file names
- func_convert_core_path_wine_to_w32_result=
- if test -n "$1"; then
- oldIFS=$IFS
- IFS=:
- for func_convert_core_path_wine_to_w32_f in $1; do
- IFS=$oldIFS
- func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f"
- if test -n "$func_convert_core_file_wine_to_w32_result"; then
- if test -z "$func_convert_core_path_wine_to_w32_result"; then
- func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result
- else
- func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result"
- fi
- fi
- done
- IFS=$oldIFS
- fi
-}
-# end: func_convert_core_path_wine_to_w32
-
-
-# func_cygpath ARGS...
-# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when
-# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2)
-# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or
-# (2), returns the Cygwin file name or path in func_cygpath_result (input
-# file name or path is assumed to be in w32 format, as previously converted
-# from $build's *nix or MSYS format). In case (3), returns the w32 file name
-# or path in func_cygpath_result (input file name or path is assumed to be in
-# Cygwin format). Returns an empty string on error.
-#
-# ARGS are passed to cygpath, with the last one being the file name or path to
-# be converted.
-#
-# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH
-# environment variable; do not put it in $PATH.
-func_cygpath ()
-{
- $debug_cmd
-
- if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then
- func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null`
- if test "$?" -ne 0; then
- # on failure, ensure result is empty
- func_cygpath_result=
- fi
- else
- func_cygpath_result=
- func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'"
- fi
-}
-#end: func_cygpath
-
-
-# func_convert_core_msys_to_w32 ARG
-# Convert file name or path ARG from MSYS format to w32 format. Return
-# result in func_convert_core_msys_to_w32_result.
-func_convert_core_msys_to_w32 ()
-{
- $debug_cmd
-
- # awkward: cmd appends spaces to result
- func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null |
- $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"`
-}
-#end: func_convert_core_msys_to_w32
-
-
-# func_convert_file_check ARG1 ARG2
-# Verify that ARG1 (a file name in $build format) was converted to $host
-# format in ARG2. Otherwise, emit an error message, but continue (resetting
-# func_to_host_file_result to ARG1).
-func_convert_file_check ()
-{
- $debug_cmd
-
- if test -z "$2" && test -n "$1"; then
- func_error "Could not determine host file name corresponding to"
- func_error " '$1'"
- func_error "Continuing, but uninstalled executables may not work."
- # Fallback:
- func_to_host_file_result=$1
- fi
-}
-# end func_convert_file_check
-
-
-# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH
-# Verify that FROM_PATH (a path in $build format) was converted to $host
-# format in TO_PATH. Otherwise, emit an error message, but continue, resetting
-# func_to_host_file_result to a simplistic fallback value (see below).
-func_convert_path_check ()
-{
- $debug_cmd
-
- if test -z "$4" && test -n "$3"; then
- func_error "Could not determine the host path corresponding to"
- func_error " '$3'"
- func_error "Continuing, but uninstalled executables may not work."
- # Fallback. This is a deliberately simplistic "conversion" and
- # should not be "improved". See libtool.info.
- if test "x$1" != "x$2"; then
- lt_replace_pathsep_chars="s|$1|$2|g"
- func_to_host_path_result=`echo "$3" |
- $SED -e "$lt_replace_pathsep_chars"`
- else
- func_to_host_path_result=$3
- fi
- fi
-}
-# end func_convert_path_check
-
-
-# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG
-# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT
-# and appending REPL if ORIG matches BACKPAT.
-func_convert_path_front_back_pathsep ()
-{
- $debug_cmd
-
- case $4 in
- $1 ) func_to_host_path_result=$3$func_to_host_path_result
- ;;
- esac
- case $4 in
- $2 ) func_append func_to_host_path_result "$3"
- ;;
- esac
-}
-# end func_convert_path_front_back_pathsep
-
-
-##################################################
-# $build to $host FILE NAME CONVERSION FUNCTIONS #
-##################################################
-# invoked via '$to_host_file_cmd ARG'
-#
-# In each case, ARG is the path to be converted from $build to $host format.
-# Result will be available in $func_to_host_file_result.
-
-
-# func_to_host_file ARG
-# Converts the file name ARG from $build format to $host format. Return result
-# in func_to_host_file_result.
-func_to_host_file ()
-{
- $debug_cmd
-
- $to_host_file_cmd "$1"
-}
-# end func_to_host_file
-
-
-# func_to_tool_file ARG LAZY
-# converts the file name ARG from $build format to toolchain format. Return
-# result in func_to_tool_file_result. If the conversion in use is listed
-# in (the comma separated) LAZY, no conversion takes place.
-func_to_tool_file ()
-{
- $debug_cmd
-
- case ,$2, in
- *,"$to_tool_file_cmd",*)
- func_to_tool_file_result=$1
- ;;
- *)
- $to_tool_file_cmd "$1"
- func_to_tool_file_result=$func_to_host_file_result
- ;;
- esac
-}
-# end func_to_tool_file
-
-
-# func_convert_file_noop ARG
-# Copy ARG to func_to_host_file_result.
-func_convert_file_noop ()
-{
- func_to_host_file_result=$1
-}
-# end func_convert_file_noop
-
-
-# func_convert_file_msys_to_w32 ARG
-# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic
-# conversion to w32 is not available inside the cwrapper. Returns result in
-# func_to_host_file_result.
-func_convert_file_msys_to_w32 ()
-{
- $debug_cmd
-
- func_to_host_file_result=$1
- if test -n "$1"; then
- func_convert_core_msys_to_w32 "$1"
- func_to_host_file_result=$func_convert_core_msys_to_w32_result
- fi
- func_convert_file_check "$1" "$func_to_host_file_result"
-}
-# end func_convert_file_msys_to_w32
-
-
-# func_convert_file_cygwin_to_w32 ARG
-# Convert file name ARG from Cygwin to w32 format. Returns result in
-# func_to_host_file_result.
-func_convert_file_cygwin_to_w32 ()
-{
- $debug_cmd
-
- func_to_host_file_result=$1
- if test -n "$1"; then
- # because $build is cygwin, we call "the" cygpath in $PATH; no need to use
- # LT_CYGPATH in this case.
- func_to_host_file_result=`cygpath -m "$1"`
- fi
- func_convert_file_check "$1" "$func_to_host_file_result"
-}
-# end func_convert_file_cygwin_to_w32
-
-
-# func_convert_file_nix_to_w32 ARG
-# Convert file name ARG from *nix to w32 format. Requires a wine environment
-# and a working winepath. Returns result in func_to_host_file_result.
-func_convert_file_nix_to_w32 ()
-{
- $debug_cmd
-
- func_to_host_file_result=$1
- if test -n "$1"; then
- func_convert_core_file_wine_to_w32 "$1"
- func_to_host_file_result=$func_convert_core_file_wine_to_w32_result
- fi
- func_convert_file_check "$1" "$func_to_host_file_result"
-}
-# end func_convert_file_nix_to_w32
-
-
-# func_convert_file_msys_to_cygwin ARG
-# Convert file name ARG from MSYS to Cygwin format. Requires LT_CYGPATH set.
-# Returns result in func_to_host_file_result.
-func_convert_file_msys_to_cygwin ()
-{
- $debug_cmd
-
- func_to_host_file_result=$1
- if test -n "$1"; then
- func_convert_core_msys_to_w32 "$1"
- func_cygpath -u "$func_convert_core_msys_to_w32_result"
- func_to_host_file_result=$func_cygpath_result
- fi
- func_convert_file_check "$1" "$func_to_host_file_result"
-}
-# end func_convert_file_msys_to_cygwin
-
-
-# func_convert_file_nix_to_cygwin ARG
-# Convert file name ARG from *nix to Cygwin format. Requires Cygwin installed
-# in a wine environment, working winepath, and LT_CYGPATH set. Returns result
-# in func_to_host_file_result.
-func_convert_file_nix_to_cygwin ()
-{
- $debug_cmd
-
- func_to_host_file_result=$1
- if test -n "$1"; then
- # convert from *nix to w32, then use cygpath to convert from w32 to cygwin.
- func_convert_core_file_wine_to_w32 "$1"
- func_cygpath -u "$func_convert_core_file_wine_to_w32_result"
- func_to_host_file_result=$func_cygpath_result
- fi
- func_convert_file_check "$1" "$func_to_host_file_result"
-}
-# end func_convert_file_nix_to_cygwin
-
-
-#############################################
-# $build to $host PATH CONVERSION FUNCTIONS #
-#############################################
-# invoked via '$to_host_path_cmd ARG'
-#
-# In each case, ARG is the path to be converted from $build to $host format.
-# The result will be available in $func_to_host_path_result.
-#
-# Path separators are also converted from $build format to $host format. If
-# ARG begins or ends with a path separator character, it is preserved (but
-# converted to $host format) on output.
-#
-# All path conversion functions are named using the following convention:
-# file name conversion function : func_convert_file_X_to_Y ()
-# path conversion function : func_convert_path_X_to_Y ()
-# where, for any given $build/$host combination the 'X_to_Y' value is the
-# same. If conversion functions are added for new $build/$host combinations,
-# the two new functions must follow this pattern, or func_init_to_host_path_cmd
-# will break.
-
-
-# func_init_to_host_path_cmd
-# Ensures that function "pointer" variable $to_host_path_cmd is set to the
-# appropriate value, based on the value of $to_host_file_cmd.
-to_host_path_cmd=
-func_init_to_host_path_cmd ()
-{
- $debug_cmd
-
- if test -z "$to_host_path_cmd"; then
- func_stripname 'func_convert_file_' '' "$to_host_file_cmd"
- to_host_path_cmd=func_convert_path_$func_stripname_result
- fi
-}
-
-
-# func_to_host_path ARG
-# Converts the path ARG from $build format to $host format. Return result
-# in func_to_host_path_result.
-func_to_host_path ()
-{
- $debug_cmd
-
- func_init_to_host_path_cmd
- $to_host_path_cmd "$1"
-}
-# end func_to_host_path
-
-
-# func_convert_path_noop ARG
-# Copy ARG to func_to_host_path_result.
-func_convert_path_noop ()
-{
- func_to_host_path_result=$1
-}
-# end func_convert_path_noop
-
-
-# func_convert_path_msys_to_w32 ARG
-# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic
-# conversion to w32 is not available inside the cwrapper. Returns result in
-# func_to_host_path_result.
-func_convert_path_msys_to_w32 ()
-{
- $debug_cmd
-
- func_to_host_path_result=$1
- if test -n "$1"; then
- # Remove leading and trailing path separator characters from ARG. MSYS
- # behavior is inconsistent here; cygpath turns them into '.;' and ';.';
- # and winepath ignores them completely.
- func_stripname : : "$1"
- func_to_host_path_tmp1=$func_stripname_result
- func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
- func_to_host_path_result=$func_convert_core_msys_to_w32_result
- func_convert_path_check : ";" \
- "$func_to_host_path_tmp1" "$func_to_host_path_result"
- func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
- fi
-}
-# end func_convert_path_msys_to_w32
-
-
-# func_convert_path_cygwin_to_w32 ARG
-# Convert path ARG from Cygwin to w32 format. Returns result in
-# func_to_host_file_result.
-func_convert_path_cygwin_to_w32 ()
-{
- $debug_cmd
-
- func_to_host_path_result=$1
- if test -n "$1"; then
- # See func_convert_path_msys_to_w32:
- func_stripname : : "$1"
- func_to_host_path_tmp1=$func_stripname_result
- func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"`
- func_convert_path_check : ";" \
- "$func_to_host_path_tmp1" "$func_to_host_path_result"
- func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
- fi
-}
-# end func_convert_path_cygwin_to_w32
-
-
-# func_convert_path_nix_to_w32 ARG
-# Convert path ARG from *nix to w32 format. Requires a wine environment and
-# a working winepath. Returns result in func_to_host_file_result.
-func_convert_path_nix_to_w32 ()
-{
- $debug_cmd
-
- func_to_host_path_result=$1
- if test -n "$1"; then
- # See func_convert_path_msys_to_w32:
- func_stripname : : "$1"
- func_to_host_path_tmp1=$func_stripname_result
- func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
- func_to_host_path_result=$func_convert_core_path_wine_to_w32_result
- func_convert_path_check : ";" \
- "$func_to_host_path_tmp1" "$func_to_host_path_result"
- func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
- fi
-}
-# end func_convert_path_nix_to_w32
-
-
-# func_convert_path_msys_to_cygwin ARG
-# Convert path ARG from MSYS to Cygwin format. Requires LT_CYGPATH set.
-# Returns result in func_to_host_file_result.
-func_convert_path_msys_to_cygwin ()
-{
- $debug_cmd
-
- func_to_host_path_result=$1
- if test -n "$1"; then
- # See func_convert_path_msys_to_w32:
- func_stripname : : "$1"
- func_to_host_path_tmp1=$func_stripname_result
- func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
- func_cygpath -u -p "$func_convert_core_msys_to_w32_result"
- func_to_host_path_result=$func_cygpath_result
- func_convert_path_check : : \
- "$func_to_host_path_tmp1" "$func_to_host_path_result"
- func_convert_path_front_back_pathsep ":*" "*:" : "$1"
- fi
-}
-# end func_convert_path_msys_to_cygwin
-
-
-# func_convert_path_nix_to_cygwin ARG
-# Convert path ARG from *nix to Cygwin format. Requires Cygwin installed in a
-# a wine environment, working winepath, and LT_CYGPATH set. Returns result in
-# func_to_host_file_result.
-func_convert_path_nix_to_cygwin ()
-{
- $debug_cmd
-
- func_to_host_path_result=$1
- if test -n "$1"; then
- # Remove leading and trailing path separator characters from
- # ARG. msys behavior is inconsistent here, cygpath turns them
- # into '.;' and ';.', and winepath ignores them completely.
- func_stripname : : "$1"
- func_to_host_path_tmp1=$func_stripname_result
- func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
- func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result"
- func_to_host_path_result=$func_cygpath_result
- func_convert_path_check : : \
- "$func_to_host_path_tmp1" "$func_to_host_path_result"
- func_convert_path_front_back_pathsep ":*" "*:" : "$1"
- fi
-}
-# end func_convert_path_nix_to_cygwin
-
-
-# func_dll_def_p FILE
-# True iff FILE is a Windows DLL '.def' file.
-# Keep in sync with _LT_DLL_DEF_P in libtool.m4
-func_dll_def_p ()
-{
- $debug_cmd
-
- func_dll_def_p_tmp=`$SED -n \
- -e 's/^[ ]*//' \
- -e '/^\(;.*\)*$/d' \
- -e 's/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p' \
- -e q \
- "$1"`
- test DEF = "$func_dll_def_p_tmp"
-}
-
-
-# func_mode_compile arg...
-func_mode_compile ()
-{
- $debug_cmd
-
- # Get the compilation command and the source file.
- base_compile=
- srcfile=$nonopt # always keep a non-empty value in "srcfile"
- suppress_opt=yes
- suppress_output=
- arg_mode=normal
- libobj=
- later=
- pie_flag=
-
- for arg
- do
- case $arg_mode in
- arg )
- # do not "continue". Instead, add this to base_compile
- lastarg=$arg
- arg_mode=normal
- ;;
-
- target )
- libobj=$arg
- arg_mode=normal
- continue
- ;;
-
- normal )
- # Accept any command-line options.
- case $arg in
- -o)
- test -n "$libobj" && \
- func_fatal_error "you cannot specify '-o' more than once"
- arg_mode=target
- continue
- ;;
-
- -pie | -fpie | -fPIE)
- func_append pie_flag " $arg"
- continue
- ;;
-
- -shared | -static | -prefer-pic | -prefer-non-pic)
- func_append later " $arg"
- continue
- ;;
-
- -no-suppress)
- suppress_opt=no
- continue
- ;;
-
- -Xcompiler)
- arg_mode=arg # the next one goes into the "base_compile" arg list
- continue # The current "srcfile" will either be retained or
- ;; # replaced later. I would guess that would be a bug.
-
- -Wc,*)
- func_stripname '-Wc,' '' "$arg"
- args=$func_stripname_result
- lastarg=
- save_ifs=$IFS; IFS=,
- for arg in $args; do
- IFS=$save_ifs
- func_append_quoted lastarg "$arg"
- done
- IFS=$save_ifs
- func_stripname ' ' '' "$lastarg"
- lastarg=$func_stripname_result
-
- # Add the arguments to base_compile.
- func_append base_compile " $lastarg"
- continue
- ;;
-
- *)
- # Accept the current argument as the source file.
- # The previous "srcfile" becomes the current argument.
- #
- lastarg=$srcfile
- srcfile=$arg
- ;;
- esac # case $arg
- ;;
- esac # case $arg_mode
-
- # Aesthetically quote the previous argument.
- func_append_quoted base_compile "$lastarg"
- done # for arg
-
- case $arg_mode in
- arg)
- func_fatal_error "you must specify an argument for -Xcompile"
- ;;
- target)
- func_fatal_error "you must specify a target with '-o'"
- ;;
- *)
- # Get the name of the library object.
- test -z "$libobj" && {
- func_basename "$srcfile"
- libobj=$func_basename_result
- }
- ;;
- esac
-
- # Recognize several different file suffixes.
- # If the user specifies -o file.o, it is replaced with file.lo
- case $libobj in
- *.[cCFSifmso] | \
- *.ada | *.adb | *.ads | *.asm | \
- *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
- *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup)
- func_xform "$libobj"
- libobj=$func_xform_result
- ;;
- esac
-
- case $libobj in
- *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
- *)
- func_fatal_error "cannot determine name of library object from '$libobj'"
- ;;
- esac
-
- func_infer_tag $base_compile
-
- for arg in $later; do
- case $arg in
- -shared)
- test yes = "$build_libtool_libs" \
- || func_fatal_configuration "cannot build a shared library"
- build_old_libs=no
- continue
- ;;
-
- -static)
- build_libtool_libs=no
- build_old_libs=yes
- continue
- ;;
-
- -prefer-pic)
- pic_mode=yes
- continue
- ;;
-
- -prefer-non-pic)
- pic_mode=no
- continue
- ;;
- esac
- done
-
- func_quote_for_eval "$libobj"
- test "X$libobj" != "X$func_quote_for_eval_result" \
- && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \
- && func_warning "libobj name '$libobj' may not contain shell special characters."
- func_dirname_and_basename "$obj" "/" ""
- objname=$func_basename_result
- xdir=$func_dirname_result
- lobj=$xdir$objdir/$objname
-
- test -z "$base_compile" && \
- func_fatal_help "you must specify a compilation command"
-
- # Delete any leftover library objects.
- if test yes = "$build_old_libs"; then
- removelist="$obj $lobj $libobj ${libobj}T"
- else
- removelist="$lobj $libobj ${libobj}T"
- fi
-
- # On Cygwin there's no "real" PIC flag so we must build both object types
- case $host_os in
- cygwin* | mingw* | pw32* | os2* | cegcc*)
- pic_mode=default
- ;;
- esac
- if test no = "$pic_mode" && test pass_all != "$deplibs_check_method"; then
- # non-PIC code in shared libraries is not supported
- pic_mode=default
- fi
-
- # Calculate the filename of the output object if compiler does
- # not support -o with -c
- if test no = "$compiler_c_o"; then
- output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.$objext
- lockfile=$output_obj.lock
- else
- output_obj=
- need_locks=no
- lockfile=
- fi
-
- # Lock this critical section if it is needed
- # We use this script file to make the link, it avoids creating a new file
- if test yes = "$need_locks"; then
- until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
- func_echo "Waiting for $lockfile to be removed"
- sleep 2
- done
- elif test warn = "$need_locks"; then
- if test -f "$lockfile"; then
- $ECHO "\
-*** ERROR, $lockfile exists and contains:
-`cat $lockfile 2>/dev/null`
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support '-c' and '-o' together. If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
- $opt_dry_run || $RM $removelist
- exit $EXIT_FAILURE
- fi
- func_append removelist " $output_obj"
- $ECHO "$srcfile" > "$lockfile"
- fi
-
- $opt_dry_run || $RM $removelist
- func_append removelist " $lockfile"
- trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15
-
- func_to_tool_file "$srcfile" func_convert_file_msys_to_w32
- srcfile=$func_to_tool_file_result
- func_quote_for_eval "$srcfile"
- qsrcfile=$func_quote_for_eval_result
-
- # Only build a PIC object if we are building libtool libraries.
- if test yes = "$build_libtool_libs"; then
- # Without this assignment, base_compile gets emptied.
- fbsd_hideous_sh_bug=$base_compile
-
- if test no != "$pic_mode"; then
- command="$base_compile $qsrcfile $pic_flag"
- else
- # Don't build PIC code
- command="$base_compile $qsrcfile"
- fi
-
- func_mkdir_p "$xdir$objdir"
-
- if test -z "$output_obj"; then
- # Place PIC objects in $objdir
- func_append command " -o $lobj"
- fi
-
- func_show_eval_locale "$command" \
- 'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'
-
- if test warn = "$need_locks" &&
- test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
- $ECHO "\
-*** ERROR, $lockfile contains:
-`cat $lockfile 2>/dev/null`
-
-but it should contain:
-$srcfile
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support '-c' and '-o' together. If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
- $opt_dry_run || $RM $removelist
- exit $EXIT_FAILURE
- fi
-
- # Just move the object if needed, then go on to compile the next one
- if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then
- func_show_eval '$MV "$output_obj" "$lobj"' \
- 'error=$?; $opt_dry_run || $RM $removelist; exit $error'
- fi
-
- # Allow error messages only from the first compilation.
- if test yes = "$suppress_opt"; then
- suppress_output=' >/dev/null 2>&1'
- fi
- fi
-
- # Only build a position-dependent object if we build old libraries.
- if test yes = "$build_old_libs"; then
- if test yes != "$pic_mode"; then
- # Don't build PIC code
- command="$base_compile $qsrcfile$pie_flag"
- else
- command="$base_compile $qsrcfile $pic_flag"
- fi
- if test yes = "$compiler_c_o"; then
- func_append command " -o $obj"
- fi
-
- # Suppress compiler output if we already did a PIC compilation.
- func_append command "$suppress_output"
- func_show_eval_locale "$command" \
- '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'
-
- if test warn = "$need_locks" &&
- test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
- $ECHO "\
-*** ERROR, $lockfile contains:
-`cat $lockfile 2>/dev/null`
-
-but it should contain:
-$srcfile
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support '-c' and '-o' together. If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
- $opt_dry_run || $RM $removelist
- exit $EXIT_FAILURE
- fi
-
- # Just move the object if needed
- if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then
- func_show_eval '$MV "$output_obj" "$obj"' \
- 'error=$?; $opt_dry_run || $RM $removelist; exit $error'
- fi
- fi
-
- $opt_dry_run || {
- func_write_libtool_object "$libobj" "$objdir/$objname" "$objname"
-
- # Unlock the critical section if it was locked
- if test no != "$need_locks"; then
- removelist=$lockfile
- $RM "$lockfile"
- fi
- }
-
- exit $EXIT_SUCCESS
-}
-
-$opt_help || {
- test compile = "$opt_mode" && func_mode_compile ${1+"$@"}
-}
-
-func_mode_help ()
-{
- # We need to display help for each of the modes.
- case $opt_mode in
- "")
- # Generic help is extracted from the usage comments
- # at the start of this file.
- func_help
- ;;
-
- clean)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE...
-
-Remove files from the build directory.
-
-RM is the name of the program to use to delete files associated with each FILE
-(typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed
-to RM.
-
-If FILE is a libtool library, object or program, all the files associated
-with it are deleted. Otherwise, only FILE itself is deleted using RM."
- ;;
-
- compile)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE
-
-Compile a source file into a libtool library object.
-
-This mode accepts the following additional options:
-
- -o OUTPUT-FILE set the output file name to OUTPUT-FILE
- -no-suppress do not suppress compiler output for multiple passes
- -prefer-pic try to build PIC objects only
- -prefer-non-pic try to build non-PIC objects only
- -shared do not build a '.o' file suitable for static linking
- -static only build a '.o' file suitable for static linking
- -Wc,FLAG pass FLAG directly to the compiler
-
-COMPILE-COMMAND is a command to be used in creating a 'standard' object file
-from the given SOURCEFILE.
-
-The output file name is determined by removing the directory component from
-SOURCEFILE, then substituting the C source code suffix '.c' with the
-library object suffix, '.lo'."
- ;;
-
- execute)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]...
-
-Automatically set library path, then run a program.
-
-This mode accepts the following additional options:
-
- -dlopen FILE add the directory containing FILE to the library path
-
-This mode sets the library path environment variable according to '-dlopen'
-flags.
-
-If any of the ARGS are libtool executable wrappers, then they are translated
-into their corresponding uninstalled binary, and any of their required library
-directories are added to the library path.
-
-Then, COMMAND is executed, with ARGS as arguments."
- ;;
-
- finish)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=finish [LIBDIR]...
-
-Complete the installation of libtool libraries.
-
-Each LIBDIR is a directory that contains libtool libraries.
-
-The commands that this mode executes may require superuser privileges. Use
-the '--dry-run' option if you just want to see what would be executed."
- ;;
-
- install)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND...
-
-Install executables or libraries.
-
-INSTALL-COMMAND is the installation command. The first component should be
-either the 'install' or 'cp' program.
-
-The following components of INSTALL-COMMAND are treated specially:
-
- -inst-prefix-dir PREFIX-DIR Use PREFIX-DIR as a staging area for installation
-
-The rest of the components are interpreted as arguments to that command (only
-BSD-compatible install options are recognized)."
- ;;
-
- link)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=link LINK-COMMAND...
-
-Link object files or libraries together to form another library, or to
-create an executable program.
-
-LINK-COMMAND is a command using the C compiler that you would use to create
-a program from several object files.
-
-The following components of LINK-COMMAND are treated specially:
-
- -all-static do not do any dynamic linking at all
- -avoid-version do not add a version suffix if possible
- -bindir BINDIR specify path to binaries directory (for systems where
- libraries must be found in the PATH setting at runtime)
- -dlopen FILE '-dlpreopen' FILE if it cannot be dlopened at runtime
- -dlpreopen FILE link in FILE and add its symbols to lt_preloaded_symbols
- -export-dynamic allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
- -export-symbols SYMFILE
- try to export only the symbols listed in SYMFILE
- -export-symbols-regex REGEX
- try to export only the symbols matching REGEX
- -LLIBDIR search LIBDIR for required installed libraries
- -lNAME OUTPUT-FILE requires the installed library libNAME
- -module build a library that can dlopened
- -no-fast-install disable the fast-install mode
- -no-install link a not-installable executable
- -no-undefined declare that a library does not refer to external symbols
- -o OUTPUT-FILE create OUTPUT-FILE from the specified objects
- -objectlist FILE use a list of object files found in FILE to specify objects
- -os2dllname NAME force a short DLL name on OS/2 (no effect on other OSes)
- -precious-files-regex REGEX
- don't remove output files matching REGEX
- -release RELEASE specify package release information
- -rpath LIBDIR the created library will eventually be installed in LIBDIR
- -R[ ]LIBDIR add LIBDIR to the runtime path of programs and libraries
- -shared only do dynamic linking of libtool libraries
- -shrext SUFFIX override the standard shared library file extension
- -static do not do any dynamic linking of uninstalled libtool libraries
- -static-libtool-libs
- do not do any dynamic linking of libtool libraries
- -version-info CURRENT[:REVISION[:AGE]]
- specify library version info [each variable defaults to 0]
- -weak LIBNAME declare that the target provides the LIBNAME interface
- -Wc,FLAG
- -Xcompiler FLAG pass linker-specific FLAG directly to the compiler
- -Wl,FLAG
- -Xlinker FLAG pass linker-specific FLAG directly to the linker
- -XCClinker FLAG pass link-specific FLAG to the compiler driver (CC)
-
-All other options (arguments beginning with '-') are ignored.
-
-Every other argument is treated as a filename. Files ending in '.la' are
-treated as uninstalled libtool libraries, other files are standard or library
-object files.
-
-If the OUTPUT-FILE ends in '.la', then a libtool library is created,
-only library objects ('.lo' files) may be specified, and '-rpath' is
-required, except when creating a convenience library.
-
-If OUTPUT-FILE ends in '.a' or '.lib', then a standard library is created
-using 'ar' and 'ranlib', or on Windows using 'lib'.
-
-If OUTPUT-FILE ends in '.lo' or '.$objext', then a reloadable object file
-is created, otherwise an executable program is created."
- ;;
-
- uninstall)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE...
-
-Remove libraries from an installation directory.
-
-RM is the name of the program to use to delete files associated with each FILE
-(typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed
-to RM.
-
-If FILE is a libtool library, all the files associated with it are deleted.
-Otherwise, only FILE itself is deleted using RM."
- ;;
-
- *)
- func_fatal_help "invalid operation mode '$opt_mode'"
- ;;
- esac
-
- echo
- $ECHO "Try '$progname --help' for more information about other modes."
-}
-
-# Now that we've collected a possible --mode arg, show help if necessary
-if $opt_help; then
- if test : = "$opt_help"; then
- func_mode_help
- else
- {
- func_help noexit
- for opt_mode in compile link execute install finish uninstall clean; do
- func_mode_help
- done
- } | $SED -n '1p; 2,$s/^Usage:/ or: /p'
- {
- func_help noexit
- for opt_mode in compile link execute install finish uninstall clean; do
- echo
- func_mode_help
- done
- } |
- $SED '1d
- /^When reporting/,/^Report/{
- H
- d
- }
- $x
- /information about other modes/d
- /more detailed .*MODE/d
- s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/'
- fi
- exit $?
-fi
-
-
-# func_mode_execute arg...
-func_mode_execute ()
-{
- $debug_cmd
-
- # The first argument is the command name.
- cmd=$nonopt
- test -z "$cmd" && \
- func_fatal_help "you must specify a COMMAND"
-
- # Handle -dlopen flags immediately.
- for file in $opt_dlopen; do
- test -f "$file" \
- || func_fatal_help "'$file' is not a file"
-
- dir=
- case $file in
- *.la)
- func_resolve_sysroot "$file"
- file=$func_resolve_sysroot_result
-
- # Check to see that this really is a libtool archive.
- func_lalib_unsafe_p "$file" \
- || func_fatal_help "'$lib' is not a valid libtool archive"
-
- # Read the libtool library.
- dlname=
- library_names=
- func_source "$file"
-
- # Skip this library if it cannot be dlopened.
- if test -z "$dlname"; then
- # Warn if it was a shared library.
- test -n "$library_names" && \
- func_warning "'$file' was not linked with '-export-dynamic'"
- continue
- fi
-
- func_dirname "$file" "" "."
- dir=$func_dirname_result
-
- if test -f "$dir/$objdir/$dlname"; then
- func_append dir "/$objdir"
- else
- if test ! -f "$dir/$dlname"; then
- func_fatal_error "cannot find '$dlname' in '$dir' or '$dir/$objdir'"
- fi
- fi
- ;;
-
- *.lo)
- # Just add the directory containing the .lo file.
- func_dirname "$file" "" "."
- dir=$func_dirname_result
- ;;
-
- *)
- func_warning "'-dlopen' is ignored for non-libtool libraries and objects"
- continue
- ;;
- esac
-
- # Get the absolute pathname.
- absdir=`cd "$dir" && pwd`
- test -n "$absdir" && dir=$absdir
-
- # Now add the directory to shlibpath_var.
- if eval "test -z \"\$$shlibpath_var\""; then
- eval "$shlibpath_var=\"\$dir\""
- else
- eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
- fi
- done
-
- # This variable tells wrapper scripts just to set shlibpath_var
- # rather than running their programs.
- libtool_execute_magic=$magic
-
- # Check if any of the arguments is a wrapper script.
- args=
- for file
- do
- case $file in
- -* | *.la | *.lo ) ;;
- *)
- # Do a test to see if this is really a libtool program.
- if func_ltwrapper_script_p "$file"; then
- func_source "$file"
- # Transform arg to wrapped name.
- file=$progdir/$program
- elif func_ltwrapper_executable_p "$file"; then
- func_ltwrapper_scriptname "$file"
- func_source "$func_ltwrapper_scriptname_result"
- # Transform arg to wrapped name.
- file=$progdir/$program
- fi
- ;;
- esac
- # Quote arguments (to preserve shell metacharacters).
- func_append_quoted args "$file"
- done
-
- if $opt_dry_run; then
- # Display what would be done.
- if test -n "$shlibpath_var"; then
- eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
- echo "export $shlibpath_var"
- fi
- $ECHO "$cmd$args"
- exit $EXIT_SUCCESS
- else
- if test -n "$shlibpath_var"; then
- # Export the shlibpath_var.
- eval "export $shlibpath_var"
- fi
-
- # Restore saved environment variables
- for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
- do
- eval "if test \"\${save_$lt_var+set}\" = set; then
- $lt_var=\$save_$lt_var; export $lt_var
- else
- $lt_unset $lt_var
- fi"
- done
-
- # Now prepare to actually exec the command.
- exec_cmd=\$cmd$args
- fi
-}
-
-test execute = "$opt_mode" && func_mode_execute ${1+"$@"}
-
-
-# func_mode_finish arg...
-func_mode_finish ()
-{
- $debug_cmd
-
- libs=
- libdirs=
- admincmds=
-
- for opt in "$nonopt" ${1+"$@"}
- do
- if test -d "$opt"; then
- func_append libdirs " $opt"
-
- elif test -f "$opt"; then
- if func_lalib_unsafe_p "$opt"; then
- func_append libs " $opt"
- else
- func_warning "'$opt' is not a valid libtool archive"
- fi
-
- else
- func_fatal_error "invalid argument '$opt'"
- fi
- done
-
- if test -n "$libs"; then
- if test -n "$lt_sysroot"; then
- sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"`
- sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;"
- else
- sysroot_cmd=
- fi
-
- # Remove sysroot references
- if $opt_dry_run; then
- for lib in $libs; do
- echo "removing references to $lt_sysroot and '=' prefixes from $lib"
- done
- else
- tmpdir=`func_mktempdir`
- for lib in $libs; do
- $SED -e "$sysroot_cmd s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \
- > $tmpdir/tmp-la
- mv -f $tmpdir/tmp-la $lib
- done
- ${RM}r "$tmpdir"
- fi
- fi
-
- if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
- for libdir in $libdirs; do
- if test -n "$finish_cmds"; then
- # Do each command in the finish commands.
- func_execute_cmds "$finish_cmds" 'admincmds="$admincmds
-'"$cmd"'"'
- fi
- if test -n "$finish_eval"; then
- # Do the single finish_eval.
- eval cmds=\"$finish_eval\"
- $opt_dry_run || eval "$cmds" || func_append admincmds "
- $cmds"
- fi
- done
- fi
-
- # Exit here if they wanted silent mode.
- $opt_quiet && exit $EXIT_SUCCESS
-
- if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
- echo "----------------------------------------------------------------------"
- echo "Libraries have been installed in:"
- for libdir in $libdirs; do
- $ECHO " $libdir"
- done
- echo
- echo "If you ever happen to want to link against installed libraries"
- echo "in a given directory, LIBDIR, you must either use libtool, and"
- echo "specify the full pathname of the library, or use the '-LLIBDIR'"
- echo "flag during linking and do at least one of the following:"
- if test -n "$shlibpath_var"; then
- echo " - add LIBDIR to the '$shlibpath_var' environment variable"
- echo " during execution"
- fi
- if test -n "$runpath_var"; then
- echo " - add LIBDIR to the '$runpath_var' environment variable"
- echo " during linking"
- fi
- if test -n "$hardcode_libdir_flag_spec"; then
- libdir=LIBDIR
- eval flag=\"$hardcode_libdir_flag_spec\"
-
- $ECHO " - use the '$flag' linker flag"
- fi
- if test -n "$admincmds"; then
- $ECHO " - have your system administrator run these commands:$admincmds"
- fi
- if test -f /etc/ld.so.conf; then
- echo " - have your system administrator add LIBDIR to '/etc/ld.so.conf'"
- fi
- echo
-
- echo "See any operating system documentation about shared libraries for"
- case $host in
- solaris2.[6789]|solaris2.1[0-9])
- echo "more information, such as the ld(1), crle(1) and ld.so(8) manual"
- echo "pages."
- ;;
- *)
- echo "more information, such as the ld(1) and ld.so(8) manual pages."
- ;;
- esac
- echo "----------------------------------------------------------------------"
- fi
- exit $EXIT_SUCCESS
-}
-
-test finish = "$opt_mode" && func_mode_finish ${1+"$@"}
-
-
-# func_mode_install arg...
-func_mode_install ()
-{
- $debug_cmd
-
- # There may be an optional sh(1) argument at the beginning of
- # install_prog (especially on Windows NT).
- if test "$SHELL" = "$nonopt" || test /bin/sh = "$nonopt" ||
- # Allow the use of GNU shtool's install command.
- case $nonopt in *shtool*) :;; *) false;; esac
- then
- # Aesthetically quote it.
- func_quote_for_eval "$nonopt"
- install_prog="$func_quote_for_eval_result "
- arg=$1
- shift
- else
- install_prog=
- arg=$nonopt
- fi
-
- # The real first argument should be the name of the installation program.
- # Aesthetically quote it.
- func_quote_for_eval "$arg"
- func_append install_prog "$func_quote_for_eval_result"
- install_shared_prog=$install_prog
- case " $install_prog " in
- *[\\\ /]cp\ *) install_cp=: ;;
- *) install_cp=false ;;
- esac
-
- # We need to accept at least all the BSD install flags.
- dest=
- files=
- opts=
- prev=
- install_type=
- isdir=false
- stripme=
- no_mode=:
- for arg
- do
- arg2=
- if test -n "$dest"; then
- func_append files " $dest"
- dest=$arg
- continue
- fi
-
- case $arg in
- -d) isdir=: ;;
- -f)
- if $install_cp; then :; else
- prev=$arg
- fi
- ;;
- -g | -m | -o)
- prev=$arg
- ;;
- -s)
- stripme=" -s"
- continue
- ;;
- -*)
- ;;
- *)
- # If the previous option needed an argument, then skip it.
- if test -n "$prev"; then
- if test X-m = "X$prev" && test -n "$install_override_mode"; then
- arg2=$install_override_mode
- no_mode=false
- fi
- prev=
- else
- dest=$arg
- continue
- fi
- ;;
- esac
-
- # Aesthetically quote the argument.
- func_quote_for_eval "$arg"
- func_append install_prog " $func_quote_for_eval_result"
- if test -n "$arg2"; then
- func_quote_for_eval "$arg2"
- fi
- func_append install_shared_prog " $func_quote_for_eval_result"
- done
-
- test -z "$install_prog" && \
- func_fatal_help "you must specify an install program"
-
- test -n "$prev" && \
- func_fatal_help "the '$prev' option requires an argument"
-
- if test -n "$install_override_mode" && $no_mode; then
- if $install_cp; then :; else
- func_quote_for_eval "$install_override_mode"
- func_append install_shared_prog " -m $func_quote_for_eval_result"
- fi
- fi
-
- if test -z "$files"; then
- if test -z "$dest"; then
- func_fatal_help "no file or destination specified"
- else
- func_fatal_help "you must specify a destination"
- fi
- fi
-
- # Strip any trailing slash from the destination.
- func_stripname '' '/' "$dest"
- dest=$func_stripname_result
-
- # Check to see that the destination is a directory.
- test -d "$dest" && isdir=:
- if $isdir; then
- destdir=$dest
- destname=
- else
- func_dirname_and_basename "$dest" "" "."
- destdir=$func_dirname_result
- destname=$func_basename_result
-
- # Not a directory, so check to see that there is only one file specified.
- set dummy $files; shift
- test "$#" -gt 1 && \
- func_fatal_help "'$dest' is not a directory"
- fi
- case $destdir in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- for file in $files; do
- case $file in
- *.lo) ;;
- *)
- func_fatal_help "'$destdir' must be an absolute directory name"
- ;;
- esac
- done
- ;;
- esac
-
- # This variable tells wrapper scripts just to set variables rather
- # than running their programs.
- libtool_install_magic=$magic
-
- staticlibs=
- future_libdirs=
- current_libdirs=
- for file in $files; do
-
- # Do each installation.
- case $file in
- *.$libext)
- # Do the static libraries later.
- func_append staticlibs " $file"
- ;;
-
- *.la)
- func_resolve_sysroot "$file"
- file=$func_resolve_sysroot_result
-
- # Check to see that this really is a libtool archive.
- func_lalib_unsafe_p "$file" \
- || func_fatal_help "'$file' is not a valid libtool archive"
-
- library_names=
- old_library=
- relink_command=
- func_source "$file"
-
- # Add the libdir to current_libdirs if it is the destination.
- if test "X$destdir" = "X$libdir"; then
- case "$current_libdirs " in
- *" $libdir "*) ;;
- *) func_append current_libdirs " $libdir" ;;
- esac
- else
- # Note the libdir as a future libdir.
- case "$future_libdirs " in
- *" $libdir "*) ;;
- *) func_append future_libdirs " $libdir" ;;
- esac
- fi
-
- func_dirname "$file" "/" ""
- dir=$func_dirname_result
- func_append dir "$objdir"
-
- if test -n "$relink_command"; then
- # Determine the prefix the user has applied to our future dir.
- inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"`
-
- # Don't allow the user to place us outside of our expected
- # location b/c this prevents finding dependent libraries that
- # are installed to the same prefix.
- # At present, this check doesn't affect windows .dll's that
- # are installed into $libdir/../bin (currently, that works fine)
- # but it's something to keep an eye on.
- test "$inst_prefix_dir" = "$destdir" && \
- func_fatal_error "error: cannot install '$file' to a directory not ending in $libdir"
-
- if test -n "$inst_prefix_dir"; then
- # Stick the inst_prefix_dir data into the link command.
- relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"`
- else
- relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"`
- fi
-
- func_warning "relinking '$file'"
- func_show_eval "$relink_command" \
- 'func_fatal_error "error: relink '\''$file'\'' with the above command before installing it"'
- fi
-
- # See the names of the shared library.
- set dummy $library_names; shift
- if test -n "$1"; then
- realname=$1
- shift
-
- srcname=$realname
- test -n "$relink_command" && srcname=${realname}T
-
- # Install the shared library and build the symlinks.
- func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \
- 'exit $?'
- tstripme=$stripme
- case $host_os in
- cygwin* | mingw* | pw32* | cegcc*)
- case $realname in
- *.dll.a)
- tstripme=
- ;;
- esac
- ;;
- os2*)
- case $realname in
- *_dll.a)
- tstripme=
- ;;
- esac
- ;;
- esac
- if test -n "$tstripme" && test -n "$striplib"; then
- func_show_eval "$striplib $destdir/$realname" 'exit $?'
- fi
-
- if test "$#" -gt 0; then
- # Delete the old symlinks, and create new ones.
- # Try 'ln -sf' first, because the 'ln' binary might depend on
- # the symlink we replace! Solaris /bin/ln does not understand -f,
- # so we also need to try rm && ln -s.
- for linkname
- do
- test "$linkname" != "$realname" \
- && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })"
- done
- fi
-
- # Do each command in the postinstall commands.
- lib=$destdir/$realname
- func_execute_cmds "$postinstall_cmds" 'exit $?'
- fi
-
- # Install the pseudo-library for information purposes.
- func_basename "$file"
- name=$func_basename_result
- instname=$dir/${name}i
- func_show_eval "$install_prog $instname $destdir/$name" 'exit $?'
-
- # Maybe install the static library, too.
- test -n "$old_library" && func_append staticlibs " $dir/$old_library"
- ;;
-
- *.lo)
- # Install (i.e. copy) a libtool object.
-
- # Figure out destination file name, if it wasn't already specified.
- if test -n "$destname"; then
- destfile=$destdir/$destname
- else
- func_basename "$file"
- destfile=$func_basename_result
- destfile=$destdir/$destfile
- fi
-
- # Deduce the name of the destination old-style object file.
- case $destfile in
- *.lo)
- func_lo2o "$destfile"
- staticdest=$func_lo2o_result
- ;;
- *.$objext)
- staticdest=$destfile
- destfile=
- ;;
- *)
- func_fatal_help "cannot copy a libtool object to '$destfile'"
- ;;
- esac
-
- # Install the libtool object if requested.
- test -n "$destfile" && \
- func_show_eval "$install_prog $file $destfile" 'exit $?'
-
- # Install the old object if enabled.
- if test yes = "$build_old_libs"; then
- # Deduce the name of the old-style object file.
- func_lo2o "$file"
- staticobj=$func_lo2o_result
- func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?'
- fi
- exit $EXIT_SUCCESS
- ;;
-
- *)
- # Figure out destination file name, if it wasn't already specified.
- if test -n "$destname"; then
- destfile=$destdir/$destname
- else
- func_basename "$file"
- destfile=$func_basename_result
- destfile=$destdir/$destfile
- fi
-
- # If the file is missing, and there is a .exe on the end, strip it
- # because it is most likely a libtool script we actually want to
- # install
- stripped_ext=
- case $file in
- *.exe)
- if test ! -f "$file"; then
- func_stripname '' '.exe' "$file"
- file=$func_stripname_result
- stripped_ext=.exe
- fi
- ;;
- esac
-
- # Do a test to see if this is really a libtool program.
- case $host in
- *cygwin* | *mingw*)
- if func_ltwrapper_executable_p "$file"; then
- func_ltwrapper_scriptname "$file"
- wrapper=$func_ltwrapper_scriptname_result
- else
- func_stripname '' '.exe' "$file"
- wrapper=$func_stripname_result
- fi
- ;;
- *)
- wrapper=$file
- ;;
- esac
- if func_ltwrapper_script_p "$wrapper"; then
- notinst_deplibs=
- relink_command=
-
- func_source "$wrapper"
-
- # Check the variables that should have been set.
- test -z "$generated_by_libtool_version" && \
- func_fatal_error "invalid libtool wrapper script '$wrapper'"
-
- finalize=:
- for lib in $notinst_deplibs; do
- # Check to see that each library is installed.
- libdir=
- if test -f "$lib"; then
- func_source "$lib"
- fi
- libfile=$libdir/`$ECHO "$lib" | $SED 's%^.*/%%g'`
- if test -n "$libdir" && test ! -f "$libfile"; then
- func_warning "'$lib' has not been installed in '$libdir'"
- finalize=false
- fi
- done
-
- relink_command=
- func_source "$wrapper"
-
- outputname=
- if test no = "$fast_install" && test -n "$relink_command"; then
- $opt_dry_run || {
- if $finalize; then
- tmpdir=`func_mktempdir`
- func_basename "$file$stripped_ext"
- file=$func_basename_result
- outputname=$tmpdir/$file
- # Replace the output file specification.
- relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'`
-
- $opt_quiet || {
- func_quote_for_expand "$relink_command"
- eval "func_echo $func_quote_for_expand_result"
- }
- if eval "$relink_command"; then :
- else
- func_error "error: relink '$file' with the above command before installing it"
- $opt_dry_run || ${RM}r "$tmpdir"
- continue
- fi
- file=$outputname
- else
- func_warning "cannot relink '$file'"
- fi
- }
- else
- # Install the binary that we compiled earlier.
- file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"`
- fi
- fi
-
- # remove .exe since cygwin /usr/bin/install will append another
- # one anyway
- case $install_prog,$host in
- */usr/bin/install*,*cygwin*)
- case $file:$destfile in
- *.exe:*.exe)
- # this is ok
- ;;
- *.exe:*)
- destfile=$destfile.exe
- ;;
- *:*.exe)
- func_stripname '' '.exe' "$destfile"
- destfile=$func_stripname_result
- ;;
- esac
- ;;
- esac
- func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?'
- $opt_dry_run || if test -n "$outputname"; then
- ${RM}r "$tmpdir"
- fi
- ;;
- esac
- done
-
- for file in $staticlibs; do
- func_basename "$file"
- name=$func_basename_result
-
- # Set up the ranlib parameters.
- oldlib=$destdir/$name
- func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
- tool_oldlib=$func_to_tool_file_result
-
- func_show_eval "$install_prog \$file \$oldlib" 'exit $?'
-
- if test -n "$stripme" && test -n "$old_striplib"; then
- func_show_eval "$old_striplib $tool_oldlib" 'exit $?'
- fi
-
- # Do each command in the postinstall commands.
- func_execute_cmds "$old_postinstall_cmds" 'exit $?'
- done
-
- test -n "$future_libdirs" && \
- func_warning "remember to run '$progname --finish$future_libdirs'"
-
- if test -n "$current_libdirs"; then
- # Maybe just do a dry run.
- $opt_dry_run && current_libdirs=" -n$current_libdirs"
- exec_cmd='$SHELL "$progpath" $preserve_args --finish$current_libdirs'
- else
- exit $EXIT_SUCCESS
- fi
-}
-
-test install = "$opt_mode" && func_mode_install ${1+"$@"}
-
-
-# func_generate_dlsyms outputname originator pic_p
-# Extract symbols from dlprefiles and create ${outputname}S.o with
-# a dlpreopen symbol table.
-func_generate_dlsyms ()
-{
- $debug_cmd
-
- my_outputname=$1
- my_originator=$2
- my_pic_p=${3-false}
- my_prefix=`$ECHO "$my_originator" | $SED 's%[^a-zA-Z0-9]%_%g'`
- my_dlsyms=
-
- if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
- if test -n "$NM" && test -n "$global_symbol_pipe"; then
- my_dlsyms=${my_outputname}S.c
- else
- func_error "not configured to extract global symbols from dlpreopened files"
- fi
- fi
-
- if test -n "$my_dlsyms"; then
- case $my_dlsyms in
- "") ;;
- *.c)
- # Discover the nlist of each of the dlfiles.
- nlist=$output_objdir/$my_outputname.nm
-
- func_show_eval "$RM $nlist ${nlist}S ${nlist}T"
-
- # Parse the name list into a source file.
- func_verbose "creating $output_objdir/$my_dlsyms"
-
- $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\
-/* $my_dlsyms - symbol resolution table for '$my_outputname' dlsym emulation. */
-/* Generated by $PROGRAM (GNU $PACKAGE) $VERSION */
-
-#ifdef __cplusplus
-extern \"C\" {
-#endif
-
-#if defined __GNUC__ && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4))
-#pragma GCC diagnostic ignored \"-Wstrict-prototypes\"
-#endif
-
-/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */
-#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
-/* DATA imports from DLLs on WIN32 can't be const, because runtime
- relocations are performed -- see ld's documentation on pseudo-relocs. */
-# define LT_DLSYM_CONST
-#elif defined __osf__
-/* This system does not cope well with relocations in const data. */
-# define LT_DLSYM_CONST
-#else
-# define LT_DLSYM_CONST const
-#endif
-
-#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0)
-
-/* External symbol declarations for the compiler. */\
-"
-
- if test yes = "$dlself"; then
- func_verbose "generating symbol list for '$output'"
-
- $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist"
-
- # Add our own program objects to the symbol list.
- progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP`
- for progfile in $progfiles; do
- func_to_tool_file "$progfile" func_convert_file_msys_to_w32
- func_verbose "extracting global C symbols from '$func_to_tool_file_result'"
- $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'"
- done
-
- if test -n "$exclude_expsyms"; then
- $opt_dry_run || {
- eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T'
- eval '$MV "$nlist"T "$nlist"'
- }
- fi
-
- if test -n "$export_symbols_regex"; then
- $opt_dry_run || {
- eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T'
- eval '$MV "$nlist"T "$nlist"'
- }
- fi
-
- # Prepare the list of exported symbols
- if test -z "$export_symbols"; then
- export_symbols=$output_objdir/$outputname.exp
- $opt_dry_run || {
- $RM $export_symbols
- eval "$SED -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
- eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"'
- ;;
- esac
- }
- else
- $opt_dry_run || {
- eval "$SED -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
- eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T'
- eval '$MV "$nlist"T "$nlist"'
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
- eval 'cat "$nlist" >> "$output_objdir/$outputname.def"'
- ;;
- esac
- }
- fi
- fi
-
- for dlprefile in $dlprefiles; do
- func_verbose "extracting global C symbols from '$dlprefile'"
- func_basename "$dlprefile"
- name=$func_basename_result
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- # if an import library, we need to obtain dlname
- if func_win32_import_lib_p "$dlprefile"; then
- func_tr_sh "$dlprefile"
- eval "curr_lafile=\$libfile_$func_tr_sh_result"
- dlprefile_dlbasename=
- if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then
- # Use subshell, to avoid clobbering current variable values
- dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"`
- if test -n "$dlprefile_dlname"; then
- func_basename "$dlprefile_dlname"
- dlprefile_dlbasename=$func_basename_result
- else
- # no lafile. user explicitly requested -dlpreopen <import library>.
- $sharedlib_from_linklib_cmd "$dlprefile"
- dlprefile_dlbasename=$sharedlib_from_linklib_result
- fi
- fi
- $opt_dry_run || {
- if test -n "$dlprefile_dlbasename"; then
- eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"'
- else
- func_warning "Could not compute DLL name from $name"
- eval '$ECHO ": $name " >> "$nlist"'
- fi
- func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
- eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe |
- $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'"
- }
- else # not an import lib
- $opt_dry_run || {
- eval '$ECHO ": $name " >> "$nlist"'
- func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
- eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
- }
- fi
- ;;
- *)
- $opt_dry_run || {
- eval '$ECHO ": $name " >> "$nlist"'
- func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
- eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
- }
- ;;
- esac
- done
-
- $opt_dry_run || {
- # Make sure we have at least an empty file.
- test -f "$nlist" || : > "$nlist"
-
- if test -n "$exclude_expsyms"; then
- $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T
- $MV "$nlist"T "$nlist"
- fi
-
- # Try sorting and uniquifying the output.
- if $GREP -v "^: " < "$nlist" |
- if sort -k 3 </dev/null >/dev/null 2>&1; then
- sort -k 3
- else
- sort +2
- fi |
- uniq > "$nlist"S; then
- :
- else
- $GREP -v "^: " < "$nlist" > "$nlist"S
- fi
-
- if test -f "$nlist"S; then
- eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"'
- else
- echo '/* NONE */' >> "$output_objdir/$my_dlsyms"
- fi
-
- func_show_eval '$RM "${nlist}I"'
- if test -n "$global_symbol_to_import"; then
- eval "$global_symbol_to_import"' < "$nlist"S > "$nlist"I'
- fi
-
- echo >> "$output_objdir/$my_dlsyms" "\
-
-/* The mapping between symbol names and symbols. */
-typedef struct {
- const char *name;
- void *address;
-} lt_dlsymlist;
-extern LT_DLSYM_CONST lt_dlsymlist
-lt_${my_prefix}_LTX_preloaded_symbols[];\
-"
-
- if test -s "$nlist"I; then
- echo >> "$output_objdir/$my_dlsyms" "\
-static void lt_syminit(void)
-{
- LT_DLSYM_CONST lt_dlsymlist *symbol = lt_${my_prefix}_LTX_preloaded_symbols;
- for (; symbol->name; ++symbol)
- {"
- $SED 's/.*/ if (STREQ (symbol->name, \"&\")) symbol->address = (void *) \&&;/' < "$nlist"I >> "$output_objdir/$my_dlsyms"
- echo >> "$output_objdir/$my_dlsyms" "\
- }
-}"
- fi
- echo >> "$output_objdir/$my_dlsyms" "\
-LT_DLSYM_CONST lt_dlsymlist
-lt_${my_prefix}_LTX_preloaded_symbols[] =
-{ {\"$my_originator\", (void *) 0},"
-
- if test -s "$nlist"I; then
- echo >> "$output_objdir/$my_dlsyms" "\
- {\"@INIT@\", (void *) <_syminit},"
- fi
-
- case $need_lib_prefix in
- no)
- eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms"
- ;;
- *)
- eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms"
- ;;
- esac
- echo >> "$output_objdir/$my_dlsyms" "\
- {0, (void *) 0}
-};
-
-/* This works around a problem in FreeBSD linker */
-#ifdef FREEBSD_WORKAROUND
-static const void *lt_preloaded_setup() {
- return lt_${my_prefix}_LTX_preloaded_symbols;
-}
-#endif
-
-#ifdef __cplusplus
-}
-#endif\
-"
- } # !$opt_dry_run
-
- pic_flag_for_symtable=
- case "$compile_command " in
- *" -static "*) ;;
- *)
- case $host in
- # compiling the symbol table file with pic_flag works around
- # a FreeBSD bug that causes programs to crash when -lm is
- # linked before any other PIC object. But we must not use
- # pic_flag when linking with -static. The problem exists in
- # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
- *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
- pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
- *-*-hpux*)
- pic_flag_for_symtable=" $pic_flag" ;;
- *)
- $my_pic_p && pic_flag_for_symtable=" $pic_flag"
- ;;
- esac
- ;;
- esac
- symtab_cflags=
- for arg in $LTCFLAGS; do
- case $arg in
- -pie | -fpie | -fPIE) ;;
- *) func_append symtab_cflags " $arg" ;;
- esac
- done
-
- # Now compile the dynamic symbol file.
- func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?'
-
- # Clean up the generated files.
- func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T" "${nlist}I"'
-
- # Transform the symbol file into the correct name.
- symfileobj=$output_objdir/${my_outputname}S.$objext
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- if test -f "$output_objdir/$my_outputname.def"; then
- compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
- finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
- else
- compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
- finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
- fi
- ;;
- *)
- compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
- finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
- ;;
- esac
- ;;
- *)
- func_fatal_error "unknown suffix for '$my_dlsyms'"
- ;;
- esac
- else
- # We keep going just in case the user didn't refer to
- # lt_preloaded_symbols. The linker will fail if global_symbol_pipe
- # really was required.
-
- # Nullify the symbol file.
- compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"`
- finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"`
- fi
-}
-
-# func_cygming_gnu_implib_p ARG
-# This predicate returns with zero status (TRUE) if
-# ARG is a GNU/binutils-style import library. Returns
-# with nonzero status (FALSE) otherwise.
-func_cygming_gnu_implib_p ()
-{
- $debug_cmd
-
- func_to_tool_file "$1" func_convert_file_msys_to_w32
- func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'`
- test -n "$func_cygming_gnu_implib_tmp"
-}
-
-# func_cygming_ms_implib_p ARG
-# This predicate returns with zero status (TRUE) if
-# ARG is an MS-style import library. Returns
-# with nonzero status (FALSE) otherwise.
-func_cygming_ms_implib_p ()
-{
- $debug_cmd
-
- func_to_tool_file "$1" func_convert_file_msys_to_w32
- func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'`
- test -n "$func_cygming_ms_implib_tmp"
-}
-
-# func_win32_libid arg
-# return the library type of file 'arg'
-#
-# Need a lot of goo to handle *both* DLLs and import libs
-# Has to be a shell function in order to 'eat' the argument
-# that is supplied when $file_magic_command is called.
-# Despite the name, also deal with 64 bit binaries.
-func_win32_libid ()
-{
- $debug_cmd
-
- win32_libid_type=unknown
- win32_fileres=`file -L $1 2>/dev/null`
- case $win32_fileres in
- *ar\ archive\ import\ library*) # definitely import
- win32_libid_type="x86 archive import"
- ;;
- *ar\ archive*) # could be an import, or static
- # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD.
- if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null |
- $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then
- case $nm_interface in
- "MS dumpbin")
- if func_cygming_ms_implib_p "$1" ||
- func_cygming_gnu_implib_p "$1"
- then
- win32_nmres=import
- else
- win32_nmres=
- fi
- ;;
- *)
- func_to_tool_file "$1" func_convert_file_msys_to_w32
- win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" |
- $SED -n -e '
- 1,100{
- / I /{
- s|.*|import|
- p
- q
- }
- }'`
- ;;
- esac
- case $win32_nmres in
- import*) win32_libid_type="x86 archive import";;
- *) win32_libid_type="x86 archive static";;
- esac
- fi
- ;;
- *DLL*)
- win32_libid_type="x86 DLL"
- ;;
- *executable*) # but shell scripts are "executable" too...
- case $win32_fileres in
- *MS\ Windows\ PE\ Intel*)
- win32_libid_type="x86 DLL"
- ;;
- esac
- ;;
- esac
- $ECHO "$win32_libid_type"
-}
-
-# func_cygming_dll_for_implib ARG
-#
-# Platform-specific function to extract the
-# name of the DLL associated with the specified
-# import library ARG.
-# Invoked by eval'ing the libtool variable
-# $sharedlib_from_linklib_cmd
-# Result is available in the variable
-# $sharedlib_from_linklib_result
-func_cygming_dll_for_implib ()
-{
- $debug_cmd
-
- sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"`
-}
-
-# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs
-#
-# The is the core of a fallback implementation of a
-# platform-specific function to extract the name of the
-# DLL associated with the specified import library LIBNAME.
-#
-# SECTION_NAME is either .idata$6 or .idata$7, depending
-# on the platform and compiler that created the implib.
-#
-# Echos the name of the DLL associated with the
-# specified import library.
-func_cygming_dll_for_implib_fallback_core ()
-{
- $debug_cmd
-
- match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"`
- $OBJDUMP -s --section "$1" "$2" 2>/dev/null |
- $SED '/^Contents of section '"$match_literal"':/{
- # Place marker at beginning of archive member dllname section
- s/.*/====MARK====/
- p
- d
- }
- # These lines can sometimes be longer than 43 characters, but
- # are always uninteresting
- /:[ ]*file format pe[i]\{,1\}-/d
- /^In archive [^:]*:/d
- # Ensure marker is printed
- /^====MARK====/p
- # Remove all lines with less than 43 characters
- /^.\{43\}/!d
- # From remaining lines, remove first 43 characters
- s/^.\{43\}//' |
- $SED -n '
- # Join marker and all lines until next marker into a single line
- /^====MARK====/ b para
- H
- $ b para
- b
- :para
- x
- s/\n//g
- # Remove the marker
- s/^====MARK====//
- # Remove trailing dots and whitespace
- s/[\. \t]*$//
- # Print
- /./p' |
- # we now have a list, one entry per line, of the stringified
- # contents of the appropriate section of all members of the
- # archive that possess that section. Heuristic: eliminate
- # all those that have a first or second character that is
- # a '.' (that is, objdump's representation of an unprintable
- # character.) This should work for all archives with less than
- # 0x302f exports -- but will fail for DLLs whose name actually
- # begins with a literal '.' or a single character followed by
- # a '.'.
- #
- # Of those that remain, print the first one.
- $SED -e '/^\./d;/^.\./d;q'
-}
-
-# func_cygming_dll_for_implib_fallback ARG
-# Platform-specific function to extract the
-# name of the DLL associated with the specified
-# import library ARG.
-#
-# This fallback implementation is for use when $DLLTOOL
-# does not support the --identify-strict option.
-# Invoked by eval'ing the libtool variable
-# $sharedlib_from_linklib_cmd
-# Result is available in the variable
-# $sharedlib_from_linklib_result
-func_cygming_dll_for_implib_fallback ()
-{
- $debug_cmd
-
- if func_cygming_gnu_implib_p "$1"; then
- # binutils import library
- sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"`
- elif func_cygming_ms_implib_p "$1"; then
- # ms-generated import library
- sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"`
- else
- # unknown
- sharedlib_from_linklib_result=
- fi
-}
-
-
-# func_extract_an_archive dir oldlib
-func_extract_an_archive ()
-{
- $debug_cmd
-
- f_ex_an_ar_dir=$1; shift
- f_ex_an_ar_oldlib=$1
- if test yes = "$lock_old_archive_extraction"; then
- lockfile=$f_ex_an_ar_oldlib.lock
- until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
- func_echo "Waiting for $lockfile to be removed"
- sleep 2
- done
- fi
- func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \
- 'stat=$?; rm -f "$lockfile"; exit $stat'
- if test yes = "$lock_old_archive_extraction"; then
- $opt_dry_run || rm -f "$lockfile"
- fi
- if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then
- :
- else
- func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib"
- fi
-}
-
-
-# func_extract_archives gentop oldlib ...
-func_extract_archives ()
-{
- $debug_cmd
-
- my_gentop=$1; shift
- my_oldlibs=${1+"$@"}
- my_oldobjs=
- my_xlib=
- my_xabs=
- my_xdir=
-
- for my_xlib in $my_oldlibs; do
- # Extract the objects.
- case $my_xlib in
- [\\/]* | [A-Za-z]:[\\/]*) my_xabs=$my_xlib ;;
- *) my_xabs=`pwd`"/$my_xlib" ;;
- esac
- func_basename "$my_xlib"
- my_xlib=$func_basename_result
- my_xlib_u=$my_xlib
- while :; do
- case " $extracted_archives " in
- *" $my_xlib_u "*)
- func_arith $extracted_serial + 1
- extracted_serial=$func_arith_result
- my_xlib_u=lt$extracted_serial-$my_xlib ;;
- *) break ;;
- esac
- done
- extracted_archives="$extracted_archives $my_xlib_u"
- my_xdir=$my_gentop/$my_xlib_u
-
- func_mkdir_p "$my_xdir"
-
- case $host in
- *-darwin*)
- func_verbose "Extracting $my_xabs"
- # Do not bother doing anything if just a dry run
- $opt_dry_run || {
- darwin_orig_dir=`pwd`
- cd $my_xdir || exit $?
- darwin_archive=$my_xabs
- darwin_curdir=`pwd`
- func_basename "$darwin_archive"
- darwin_base_archive=$func_basename_result
- darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true`
- if test -n "$darwin_arches"; then
- darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'`
- darwin_arch=
- func_verbose "$darwin_base_archive has multiple architectures $darwin_arches"
- for darwin_arch in $darwin_arches; do
- func_mkdir_p "unfat-$$/$darwin_base_archive-$darwin_arch"
- $LIPO -thin $darwin_arch -output "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" "$darwin_archive"
- cd "unfat-$$/$darwin_base_archive-$darwin_arch"
- func_extract_an_archive "`pwd`" "$darwin_base_archive"
- cd "$darwin_curdir"
- $RM "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive"
- done # $darwin_arches
- ## Okay now we've a bunch of thin objects, gotta fatten them up :)
- darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$sed_basename" | sort -u`
- darwin_file=
- darwin_files=
- for darwin_file in $darwin_filelist; do
- darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP`
- $LIPO -create -output "$darwin_file" $darwin_files
- done # $darwin_filelist
- $RM -rf unfat-$$
- cd "$darwin_orig_dir"
- else
- cd $darwin_orig_dir
- func_extract_an_archive "$my_xdir" "$my_xabs"
- fi # $darwin_arches
- } # !$opt_dry_run
- ;;
- *)
- func_extract_an_archive "$my_xdir" "$my_xabs"
- ;;
- esac
- my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP`
- done
-
- func_extract_archives_result=$my_oldobjs
-}
-
-
-# func_emit_wrapper [arg=no]
-#
-# Emit a libtool wrapper script on stdout.
-# Don't directly open a file because we may want to
-# incorporate the script contents within a cygwin/mingw
-# wrapper executable. Must ONLY be called from within
-# func_mode_link because it depends on a number of variables
-# set therein.
-#
-# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR
-# variable will take. If 'yes', then the emitted script
-# will assume that the directory where it is stored is
-# the $objdir directory. This is a cygwin/mingw-specific
-# behavior.
-func_emit_wrapper ()
-{
- func_emit_wrapper_arg1=${1-no}
-
- $ECHO "\
-#! $SHELL
-
-# $output - temporary wrapper script for $objdir/$outputname
-# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
-#
-# The $output program cannot be directly executed until all the libtool
-# libraries that it depends on are installed.
-#
-# This wrapper script should never be moved out of the build directory.
-# If it is, it will not operate correctly.
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-sed_quote_subst='$sed_quote_subst'
-
-# Be Bourne compatible
-if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '\${1+\"\$@\"}'='\"\$@\"'
- setopt NO_GLOB_SUBST
-else
- case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-relink_command=\"$relink_command\"
-
-# This environment variable determines our operation mode.
-if test \"\$libtool_install_magic\" = \"$magic\"; then
- # install mode needs the following variables:
- generated_by_libtool_version='$macro_version'
- notinst_deplibs='$notinst_deplibs'
-else
- # When we are sourced in execute mode, \$file and \$ECHO are already set.
- if test \"\$libtool_execute_magic\" != \"$magic\"; then
- file=\"\$0\""
-
- qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"`
- $ECHO "\
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
- eval 'cat <<_LTECHO_EOF
-\$1
-_LTECHO_EOF'
-}
- ECHO=\"$qECHO\"
- fi
-
-# Very basic option parsing. These options are (a) specific to
-# the libtool wrapper, (b) are identical between the wrapper
-# /script/ and the wrapper /executable/ that is used only on
-# windows platforms, and (c) all begin with the string "--lt-"
-# (application programs are unlikely to have options that match
-# this pattern).
-#
-# There are only two supported options: --lt-debug and
-# --lt-dump-script. There is, deliberately, no --lt-help.
-#
-# The first argument to this parsing function should be the
-# script's $0 value, followed by "$@".
-lt_option_debug=
-func_parse_lt_options ()
-{
- lt_script_arg0=\$0
- shift
- for lt_opt
- do
- case \"\$lt_opt\" in
- --lt-debug) lt_option_debug=1 ;;
- --lt-dump-script)
- lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\`
- test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=.
- lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\`
- cat \"\$lt_dump_D/\$lt_dump_F\"
- exit 0
- ;;
- --lt-*)
- \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2
- exit 1
- ;;
- esac
- done
-
- # Print the debug banner immediately:
- if test -n \"\$lt_option_debug\"; then
- echo \"$outputname:$output:\$LINENO: libtool wrapper (GNU $PACKAGE) $VERSION\" 1>&2
- fi
-}
-
-# Used when --lt-debug. Prints its arguments to stdout
-# (redirection is the responsibility of the caller)
-func_lt_dump_args ()
-{
- lt_dump_args_N=1;
- for lt_arg
- do
- \$ECHO \"$outputname:$output:\$LINENO: newargv[\$lt_dump_args_N]: \$lt_arg\"
- lt_dump_args_N=\`expr \$lt_dump_args_N + 1\`
- done
-}
-
-# Core function for launching the target application
-func_exec_program_core ()
-{
-"
- case $host in
- # Backslashes separate directories on plain windows
- *-*-mingw | *-*-os2* | *-cegcc*)
- $ECHO "\
- if test -n \"\$lt_option_debug\"; then
- \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir\\\\\$program\" 1>&2
- func_lt_dump_args \${1+\"\$@\"} 1>&2
- fi
- exec \"\$progdir\\\\\$program\" \${1+\"\$@\"}
-"
- ;;
-
- *)
- $ECHO "\
- if test -n \"\$lt_option_debug\"; then
- \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir/\$program\" 1>&2
- func_lt_dump_args \${1+\"\$@\"} 1>&2
- fi
- exec \"\$progdir/\$program\" \${1+\"\$@\"}
-"
- ;;
- esac
- $ECHO "\
- \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2
- exit 1
-}
-
-# A function to encapsulate launching the target application
-# Strips options in the --lt-* namespace from \$@ and
-# launches target application with the remaining arguments.
-func_exec_program ()
-{
- case \" \$* \" in
- *\\ --lt-*)
- for lt_wr_arg
- do
- case \$lt_wr_arg in
- --lt-*) ;;
- *) set x \"\$@\" \"\$lt_wr_arg\"; shift;;
- esac
- shift
- done ;;
- esac
- func_exec_program_core \${1+\"\$@\"}
-}
-
- # Parse options
- func_parse_lt_options \"\$0\" \${1+\"\$@\"}
-
- # Find the directory that this script lives in.
- thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\`
- test \"x\$thisdir\" = \"x\$file\" && thisdir=.
-
- # Follow symbolic links until we get to the real thisdir.
- file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\`
- while test -n \"\$file\"; do
- destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\`
-
- # If there was a directory component, then change thisdir.
- if test \"x\$destdir\" != \"x\$file\"; then
- case \"\$destdir\" in
- [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
- *) thisdir=\"\$thisdir/\$destdir\" ;;
- esac
- fi
-
- file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\`
- file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\`
- done
-
- # Usually 'no', except on cygwin/mingw when embedded into
- # the cwrapper.
- WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1
- if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then
- # special case for '.'
- if test \"\$thisdir\" = \".\"; then
- thisdir=\`pwd\`
- fi
- # remove .libs from thisdir
- case \"\$thisdir\" in
- *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;;
- $objdir ) thisdir=. ;;
- esac
- fi
-
- # Try to get the absolute directory name.
- absdir=\`cd \"\$thisdir\" && pwd\`
- test -n \"\$absdir\" && thisdir=\"\$absdir\"
-"
-
- if test yes = "$fast_install"; then
- $ECHO "\
- program=lt-'$outputname'$exeext
- progdir=\"\$thisdir/$objdir\"
-
- if test ! -f \"\$progdir/\$program\" ||
- { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | $SED 1q\`; \\
- test \"X\$file\" != \"X\$progdir/\$program\"; }; then
-
- file=\"\$\$-\$program\"
-
- if test ! -d \"\$progdir\"; then
- $MKDIR \"\$progdir\"
- else
- $RM \"\$progdir/\$file\"
- fi"
-
- $ECHO "\
-
- # relink executable if necessary
- if test -n \"\$relink_command\"; then
- if relink_command_output=\`eval \$relink_command 2>&1\`; then :
- else
- \$ECHO \"\$relink_command_output\" >&2
- $RM \"\$progdir/\$file\"
- exit 1
- fi
- fi
-
- $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
- { $RM \"\$progdir/\$program\";
- $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; }
- $RM \"\$progdir/\$file\"
- fi"
- else
- $ECHO "\
- program='$outputname'
- progdir=\"\$thisdir/$objdir\"
-"
- fi
-
- $ECHO "\
-
- if test -f \"\$progdir/\$program\"; then"
-
- # fixup the dll searchpath if we need to.
- #
- # Fix the DLL searchpath if we need to. Do this before prepending
- # to shlibpath, because on Windows, both are PATH and uninstalled
- # libraries must come first.
- if test -n "$dllsearchpath"; then
- $ECHO "\
- # Add the dll search path components to the executable PATH
- PATH=$dllsearchpath:\$PATH
-"
- fi
-
- # Export our shlibpath_var if we have one.
- if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
- $ECHO "\
- # Add our own library path to $shlibpath_var
- $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"
-
- # Some systems cannot cope with colon-terminated $shlibpath_var
- # The second colon is a workaround for a bug in BeOS R4 sed
- $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\`
-
- export $shlibpath_var
-"
- fi
-
- $ECHO "\
- if test \"\$libtool_execute_magic\" != \"$magic\"; then
- # Run the actual program with our arguments.
- func_exec_program \${1+\"\$@\"}
- fi
- else
- # The program doesn't exist.
- \$ECHO \"\$0: error: '\$progdir/\$program' does not exist\" 1>&2
- \$ECHO \"This script is just a wrapper for \$program.\" 1>&2
- \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
- exit 1
- fi
-fi\
-"
-}
-
-
-# func_emit_cwrapperexe_src
-# emit the source code for a wrapper executable on stdout
-# Must ONLY be called from within func_mode_link because
-# it depends on a number of variable set therein.
-func_emit_cwrapperexe_src ()
-{
- cat <<EOF
-
-/* $cwrappersource - temporary wrapper executable for $objdir/$outputname
- Generated by $PROGRAM (GNU $PACKAGE) $VERSION
-
- The $output program cannot be directly executed until all the libtool
- libraries that it depends on are installed.
-
- This wrapper executable should never be moved out of the build directory.
- If it is, it will not operate correctly.
-*/
-EOF
- cat <<"EOF"
-#ifdef _MSC_VER
-# define _CRT_SECURE_NO_DEPRECATE 1
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-#ifdef _MSC_VER
-# include <direct.h>
-# include <process.h>
-# include <io.h>
-#else
-# include <unistd.h>
-# include <stdint.h>
-# ifdef __CYGWIN__
-# include <io.h>
-# endif
-#endif
-#include <malloc.h>
-#include <stdarg.h>
-#include <assert.h>
-#include <string.h>
-#include <ctype.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-
-#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0)
-
-/* declarations of non-ANSI functions */
-#if defined __MINGW32__
-# ifdef __STRICT_ANSI__
-int _putenv (const char *);
-# endif
-#elif defined __CYGWIN__
-# ifdef __STRICT_ANSI__
-char *realpath (const char *, char *);
-int putenv (char *);
-int setenv (const char *, const char *, int);
-# endif
-/* #elif defined other_platform || defined ... */
-#endif
-
-/* portability defines, excluding path handling macros */
-#if defined _MSC_VER
-# define setmode _setmode
-# define stat _stat
-# define chmod _chmod
-# define getcwd _getcwd
-# define putenv _putenv
-# define S_IXUSR _S_IEXEC
-#elif defined __MINGW32__
-# define setmode _setmode
-# define stat _stat
-# define chmod _chmod
-# define getcwd _getcwd
-# define putenv _putenv
-#elif defined __CYGWIN__
-# define HAVE_SETENV
-# define FOPEN_WB "wb"
-/* #elif defined other platforms ... */
-#endif
-
-#if defined PATH_MAX
-# define LT_PATHMAX PATH_MAX
-#elif defined MAXPATHLEN
-# define LT_PATHMAX MAXPATHLEN
-#else
-# define LT_PATHMAX 1024
-#endif
-
-#ifndef S_IXOTH
-# define S_IXOTH 0
-#endif
-#ifndef S_IXGRP
-# define S_IXGRP 0
-#endif
-
-/* path handling portability macros */
-#ifndef DIR_SEPARATOR
-# define DIR_SEPARATOR '/'
-# define PATH_SEPARATOR ':'
-#endif
-
-#if defined _WIN32 || defined __MSDOS__ || defined __DJGPP__ || \
- defined __OS2__
-# define HAVE_DOS_BASED_FILE_SYSTEM
-# define FOPEN_WB "wb"
-# ifndef DIR_SEPARATOR_2
-# define DIR_SEPARATOR_2 '\\'
-# endif
-# ifndef PATH_SEPARATOR_2
-# define PATH_SEPARATOR_2 ';'
-# endif
-#endif
-
-#ifndef DIR_SEPARATOR_2
-# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
-#else /* DIR_SEPARATOR_2 */
-# define IS_DIR_SEPARATOR(ch) \
- (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
-#endif /* DIR_SEPARATOR_2 */
-
-#ifndef PATH_SEPARATOR_2
-# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR)
-#else /* PATH_SEPARATOR_2 */
-# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2)
-#endif /* PATH_SEPARATOR_2 */
-
-#ifndef FOPEN_WB
-# define FOPEN_WB "w"
-#endif
-#ifndef _O_BINARY
-# define _O_BINARY 0
-#endif
-
-#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type)))
-#define XFREE(stale) do { \
- if (stale) { free (stale); stale = 0; } \
-} while (0)
-
-#if defined LT_DEBUGWRAPPER
-static int lt_debug = 1;
-#else
-static int lt_debug = 0;
-#endif
-
-const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */
-
-void *xmalloc (size_t num);
-char *xstrdup (const char *string);
-const char *base_name (const char *name);
-char *find_executable (const char *wrapper);
-char *chase_symlinks (const char *pathspec);
-int make_executable (const char *path);
-int check_executable (const char *path);
-char *strendzap (char *str, const char *pat);
-void lt_debugprintf (const char *file, int line, const char *fmt, ...);
-void lt_fatal (const char *file, int line, const char *message, ...);
-static const char *nonnull (const char *s);
-static const char *nonempty (const char *s);
-void lt_setenv (const char *name, const char *value);
-char *lt_extend_str (const char *orig_value, const char *add, int to_end);
-void lt_update_exe_path (const char *name, const char *value);
-void lt_update_lib_path (const char *name, const char *value);
-char **prepare_spawn (char **argv);
-void lt_dump_script (FILE *f);
-EOF
-
- cat <<EOF
-#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
-# define externally_visible volatile
-#else
-# define externally_visible __attribute__((externally_visible)) volatile
-#endif
-externally_visible const char * MAGIC_EXE = "$magic_exe";
-const char * LIB_PATH_VARNAME = "$shlibpath_var";
-EOF
-
- if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
- func_to_host_path "$temp_rpath"
- cat <<EOF
-const char * LIB_PATH_VALUE = "$func_to_host_path_result";
-EOF
- else
- cat <<"EOF"
-const char * LIB_PATH_VALUE = "";
-EOF
- fi
-
- if test -n "$dllsearchpath"; then
- func_to_host_path "$dllsearchpath:"
- cat <<EOF
-const char * EXE_PATH_VARNAME = "PATH";
-const char * EXE_PATH_VALUE = "$func_to_host_path_result";
-EOF
- else
- cat <<"EOF"
-const char * EXE_PATH_VARNAME = "";
-const char * EXE_PATH_VALUE = "";
-EOF
- fi
-
- if test yes = "$fast_install"; then
- cat <<EOF
-const char * TARGET_PROGRAM_NAME = "lt-$outputname"; /* hopefully, no .exe */
-EOF
- else
- cat <<EOF
-const char * TARGET_PROGRAM_NAME = "$outputname"; /* hopefully, no .exe */
-EOF
- fi
-
-
- cat <<"EOF"
-
-#define LTWRAPPER_OPTION_PREFIX "--lt-"
-
-static const char *ltwrapper_option_prefix = LTWRAPPER_OPTION_PREFIX;
-static const char *dumpscript_opt = LTWRAPPER_OPTION_PREFIX "dump-script";
-static const char *debug_opt = LTWRAPPER_OPTION_PREFIX "debug";
-
-int
-main (int argc, char *argv[])
-{
- char **newargz;
- int newargc;
- char *tmp_pathspec;
- char *actual_cwrapper_path;
- char *actual_cwrapper_name;
- char *target_name;
- char *lt_argv_zero;
- int rval = 127;
-
- int i;
-
- program_name = (char *) xstrdup (base_name (argv[0]));
- newargz = XMALLOC (char *, (size_t) argc + 1);
-
- /* very simple arg parsing; don't want to rely on getopt
- * also, copy all non cwrapper options to newargz, except
- * argz[0], which is handled differently
- */
- newargc=0;
- for (i = 1; i < argc; i++)
- {
- if (STREQ (argv[i], dumpscript_opt))
- {
-EOF
- case $host in
- *mingw* | *cygwin* )
- # make stdout use "unix" line endings
- echo " setmode(1,_O_BINARY);"
- ;;
- esac
-
- cat <<"EOF"
- lt_dump_script (stdout);
- return 0;
- }
- if (STREQ (argv[i], debug_opt))
- {
- lt_debug = 1;
- continue;
- }
- if (STREQ (argv[i], ltwrapper_option_prefix))
- {
- /* however, if there is an option in the LTWRAPPER_OPTION_PREFIX
- namespace, but it is not one of the ones we know about and
- have already dealt with, above (inluding dump-script), then
- report an error. Otherwise, targets might begin to believe
- they are allowed to use options in the LTWRAPPER_OPTION_PREFIX
- namespace. The first time any user complains about this, we'll
- need to make LTWRAPPER_OPTION_PREFIX a configure-time option
- or a configure.ac-settable value.
- */
- lt_fatal (__FILE__, __LINE__,
- "unrecognized %s option: '%s'",
- ltwrapper_option_prefix, argv[i]);
- }
- /* otherwise ... */
- newargz[++newargc] = xstrdup (argv[i]);
- }
- newargz[++newargc] = NULL;
-
-EOF
- cat <<EOF
- /* The GNU banner must be the first non-error debug message */
- lt_debugprintf (__FILE__, __LINE__, "libtool wrapper (GNU $PACKAGE) $VERSION\n");
-EOF
- cat <<"EOF"
- lt_debugprintf (__FILE__, __LINE__, "(main) argv[0]: %s\n", argv[0]);
- lt_debugprintf (__FILE__, __LINE__, "(main) program_name: %s\n", program_name);
-
- tmp_pathspec = find_executable (argv[0]);
- if (tmp_pathspec == NULL)
- lt_fatal (__FILE__, __LINE__, "couldn't find %s", argv[0]);
- lt_debugprintf (__FILE__, __LINE__,
- "(main) found exe (before symlink chase) at: %s\n",
- tmp_pathspec);
-
- actual_cwrapper_path = chase_symlinks (tmp_pathspec);
- lt_debugprintf (__FILE__, __LINE__,
- "(main) found exe (after symlink chase) at: %s\n",
- actual_cwrapper_path);
- XFREE (tmp_pathspec);
-
- actual_cwrapper_name = xstrdup (base_name (actual_cwrapper_path));
- strendzap (actual_cwrapper_path, actual_cwrapper_name);
-
- /* wrapper name transforms */
- strendzap (actual_cwrapper_name, ".exe");
- tmp_pathspec = lt_extend_str (actual_cwrapper_name, ".exe", 1);
- XFREE (actual_cwrapper_name);
- actual_cwrapper_name = tmp_pathspec;
- tmp_pathspec = 0;
-
- /* target_name transforms -- use actual target program name; might have lt- prefix */
- target_name = xstrdup (base_name (TARGET_PROGRAM_NAME));
- strendzap (target_name, ".exe");
- tmp_pathspec = lt_extend_str (target_name, ".exe", 1);
- XFREE (target_name);
- target_name = tmp_pathspec;
- tmp_pathspec = 0;
-
- lt_debugprintf (__FILE__, __LINE__,
- "(main) libtool target name: %s\n",
- target_name);
-EOF
-
- cat <<EOF
- newargz[0] =
- XMALLOC (char, (strlen (actual_cwrapper_path) +
- strlen ("$objdir") + 1 + strlen (actual_cwrapper_name) + 1));
- strcpy (newargz[0], actual_cwrapper_path);
- strcat (newargz[0], "$objdir");
- strcat (newargz[0], "/");
-EOF
-
- cat <<"EOF"
- /* stop here, and copy so we don't have to do this twice */
- tmp_pathspec = xstrdup (newargz[0]);
-
- /* do NOT want the lt- prefix here, so use actual_cwrapper_name */
- strcat (newargz[0], actual_cwrapper_name);
-
- /* DO want the lt- prefix here if it exists, so use target_name */
- lt_argv_zero = lt_extend_str (tmp_pathspec, target_name, 1);
- XFREE (tmp_pathspec);
- tmp_pathspec = NULL;
-EOF
-
- case $host_os in
- mingw*)
- cat <<"EOF"
- {
- char* p;
- while ((p = strchr (newargz[0], '\\')) != NULL)
- {
- *p = '/';
- }
- while ((p = strchr (lt_argv_zero, '\\')) != NULL)
- {
- *p = '/';
- }
- }
-EOF
- ;;
- esac
-
- cat <<"EOF"
- XFREE (target_name);
- XFREE (actual_cwrapper_path);
- XFREE (actual_cwrapper_name);
-
- lt_setenv ("BIN_SH", "xpg4"); /* for Tru64 */
- lt_setenv ("DUALCASE", "1"); /* for MSK sh */
- /* Update the DLL searchpath. EXE_PATH_VALUE ($dllsearchpath) must
- be prepended before (that is, appear after) LIB_PATH_VALUE ($temp_rpath)
- because on Windows, both *_VARNAMEs are PATH but uninstalled
- libraries must come first. */
- lt_update_exe_path (EXE_PATH_VARNAME, EXE_PATH_VALUE);
- lt_update_lib_path (LIB_PATH_VARNAME, LIB_PATH_VALUE);
-
- lt_debugprintf (__FILE__, __LINE__, "(main) lt_argv_zero: %s\n",
- nonnull (lt_argv_zero));
- for (i = 0; i < newargc; i++)
- {
- lt_debugprintf (__FILE__, __LINE__, "(main) newargz[%d]: %s\n",
- i, nonnull (newargz[i]));
- }
-
-EOF
-
- case $host_os in
- mingw*)
- cat <<"EOF"
- /* execv doesn't actually work on mingw as expected on unix */
- newargz = prepare_spawn (newargz);
- rval = (int) _spawnv (_P_WAIT, lt_argv_zero, (const char * const *) newargz);
- if (rval == -1)
- {
- /* failed to start process */
- lt_debugprintf (__FILE__, __LINE__,
- "(main) failed to launch target \"%s\": %s\n",
- lt_argv_zero, nonnull (strerror (errno)));
- return 127;
- }
- return rval;
-EOF
- ;;
- *)
- cat <<"EOF"
- execv (lt_argv_zero, newargz);
- return rval; /* =127, but avoids unused variable warning */
-EOF
- ;;
- esac
-
- cat <<"EOF"
-}
-
-void *
-xmalloc (size_t num)
-{
- void *p = (void *) malloc (num);
- if (!p)
- lt_fatal (__FILE__, __LINE__, "memory exhausted");
-
- return p;
-}
-
-char *
-xstrdup (const char *string)
-{
- return string ? strcpy ((char *) xmalloc (strlen (string) + 1),
- string) : NULL;
-}
-
-const char *
-base_name (const char *name)
-{
- const char *base;
-
-#if defined HAVE_DOS_BASED_FILE_SYSTEM
- /* Skip over the disk name in MSDOS pathnames. */
- if (isalpha ((unsigned char) name[0]) && name[1] == ':')
- name += 2;
-#endif
-
- for (base = name; *name; name++)
- if (IS_DIR_SEPARATOR (*name))
- base = name + 1;
- return base;
-}
-
-int
-check_executable (const char *path)
-{
- struct stat st;
-
- lt_debugprintf (__FILE__, __LINE__, "(check_executable): %s\n",
- nonempty (path));
- if ((!path) || (!*path))
- return 0;
-
- if ((stat (path, &st) >= 0)
- && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
- return 1;
- else
- return 0;
-}
-
-int
-make_executable (const char *path)
-{
- int rval = 0;
- struct stat st;
-
- lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n",
- nonempty (path));
- if ((!path) || (!*path))
- return 0;
-
- if (stat (path, &st) >= 0)
- {
- rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR);
- }
- return rval;
-}
-
-/* Searches for the full path of the wrapper. Returns
- newly allocated full path name if found, NULL otherwise
- Does not chase symlinks, even on platforms that support them.
-*/
-char *
-find_executable (const char *wrapper)
-{
- int has_slash = 0;
- const char *p;
- const char *p_next;
- /* static buffer for getcwd */
- char tmp[LT_PATHMAX + 1];
- size_t tmp_len;
- char *concat_name;
-
- lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n",
- nonempty (wrapper));
-
- if ((wrapper == NULL) || (*wrapper == '\0'))
- return NULL;
-
- /* Absolute path? */
-#if defined HAVE_DOS_BASED_FILE_SYSTEM
- if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
- {
- concat_name = xstrdup (wrapper);
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- }
- else
- {
-#endif
- if (IS_DIR_SEPARATOR (wrapper[0]))
- {
- concat_name = xstrdup (wrapper);
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- }
-#if defined HAVE_DOS_BASED_FILE_SYSTEM
- }
-#endif
-
- for (p = wrapper; *p; p++)
- if (*p == '/')
- {
- has_slash = 1;
- break;
- }
- if (!has_slash)
- {
- /* no slashes; search PATH */
- const char *path = getenv ("PATH");
- if (path != NULL)
- {
- for (p = path; *p; p = p_next)
- {
- const char *q;
- size_t p_len;
- for (q = p; *q; q++)
- if (IS_PATH_SEPARATOR (*q))
- break;
- p_len = (size_t) (q - p);
- p_next = (*q == '\0' ? q : q + 1);
- if (p_len == 0)
- {
- /* empty path: current directory */
- if (getcwd (tmp, LT_PATHMAX) == NULL)
- lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
- nonnull (strerror (errno)));
- tmp_len = strlen (tmp);
- concat_name =
- XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
- memcpy (concat_name, tmp, tmp_len);
- concat_name[tmp_len] = '/';
- strcpy (concat_name + tmp_len + 1, wrapper);
- }
- else
- {
- concat_name =
- XMALLOC (char, p_len + 1 + strlen (wrapper) + 1);
- memcpy (concat_name, p, p_len);
- concat_name[p_len] = '/';
- strcpy (concat_name + p_len + 1, wrapper);
- }
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- }
- }
- /* not found in PATH; assume curdir */
- }
- /* Relative path | not found in path: prepend cwd */
- if (getcwd (tmp, LT_PATHMAX) == NULL)
- lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
- nonnull (strerror (errno)));
- tmp_len = strlen (tmp);
- concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
- memcpy (concat_name, tmp, tmp_len);
- concat_name[tmp_len] = '/';
- strcpy (concat_name + tmp_len + 1, wrapper);
-
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- return NULL;
-}
-
-char *
-chase_symlinks (const char *pathspec)
-{
-#ifndef S_ISLNK
- return xstrdup (pathspec);
-#else
- char buf[LT_PATHMAX];
- struct stat s;
- char *tmp_pathspec = xstrdup (pathspec);
- char *p;
- int has_symlinks = 0;
- while (strlen (tmp_pathspec) && !has_symlinks)
- {
- lt_debugprintf (__FILE__, __LINE__,
- "checking path component for symlinks: %s\n",
- tmp_pathspec);
- if (lstat (tmp_pathspec, &s) == 0)
- {
- if (S_ISLNK (s.st_mode) != 0)
- {
- has_symlinks = 1;
- break;
- }
-
- /* search backwards for last DIR_SEPARATOR */
- p = tmp_pathspec + strlen (tmp_pathspec) - 1;
- while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
- p--;
- if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
- {
- /* no more DIR_SEPARATORS left */
- break;
- }
- *p = '\0';
- }
- else
- {
- lt_fatal (__FILE__, __LINE__,
- "error accessing file \"%s\": %s",
- tmp_pathspec, nonnull (strerror (errno)));
- }
- }
- XFREE (tmp_pathspec);
-
- if (!has_symlinks)
- {
- return xstrdup (pathspec);
- }
-
- tmp_pathspec = realpath (pathspec, buf);
- if (tmp_pathspec == 0)
- {
- lt_fatal (__FILE__, __LINE__,
- "could not follow symlinks for %s", pathspec);
- }
- return xstrdup (tmp_pathspec);
-#endif
-}
-
-char *
-strendzap (char *str, const char *pat)
-{
- size_t len, patlen;
-
- assert (str != NULL);
- assert (pat != NULL);
-
- len = strlen (str);
- patlen = strlen (pat);
-
- if (patlen <= len)
- {
- str += len - patlen;
- if (STREQ (str, pat))
- *str = '\0';
- }
- return str;
-}
-
-void
-lt_debugprintf (const char *file, int line, const char *fmt, ...)
-{
- va_list args;
- if (lt_debug)
- {
- (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line);
- va_start (args, fmt);
- (void) vfprintf (stderr, fmt, args);
- va_end (args);
- }
-}
-
-static void
-lt_error_core (int exit_status, const char *file,
- int line, const char *mode,
- const char *message, va_list ap)
-{
- fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode);
- vfprintf (stderr, message, ap);
- fprintf (stderr, ".\n");
-
- if (exit_status >= 0)
- exit (exit_status);
-}
-
-void
-lt_fatal (const char *file, int line, const char *message, ...)
-{
- va_list ap;
- va_start (ap, message);
- lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap);
- va_end (ap);
-}
-
-static const char *
-nonnull (const char *s)
-{
- return s ? s : "(null)";
-}
-
-static const char *
-nonempty (const char *s)
-{
- return (s && !*s) ? "(empty)" : nonnull (s);
-}
-
-void
-lt_setenv (const char *name, const char *value)
-{
- lt_debugprintf (__FILE__, __LINE__,
- "(lt_setenv) setting '%s' to '%s'\n",
- nonnull (name), nonnull (value));
- {
-#ifdef HAVE_SETENV
- /* always make a copy, for consistency with !HAVE_SETENV */
- char *str = xstrdup (value);
- setenv (name, str, 1);
-#else
- size_t len = strlen (name) + 1 + strlen (value) + 1;
- char *str = XMALLOC (char, len);
- sprintf (str, "%s=%s", name, value);
- if (putenv (str) != EXIT_SUCCESS)
- {
- XFREE (str);
- }
-#endif
- }
-}
-
-char *
-lt_extend_str (const char *orig_value, const char *add, int to_end)
-{
- char *new_value;
- if (orig_value && *orig_value)
- {
- size_t orig_value_len = strlen (orig_value);
- size_t add_len = strlen (add);
- new_value = XMALLOC (char, add_len + orig_value_len + 1);
- if (to_end)
- {
- strcpy (new_value, orig_value);
- strcpy (new_value + orig_value_len, add);
- }
- else
- {
- strcpy (new_value, add);
- strcpy (new_value + add_len, orig_value);
- }
- }
- else
- {
- new_value = xstrdup (add);
- }
- return new_value;
-}
-
-void
-lt_update_exe_path (const char *name, const char *value)
-{
- lt_debugprintf (__FILE__, __LINE__,
- "(lt_update_exe_path) modifying '%s' by prepending '%s'\n",
- nonnull (name), nonnull (value));
-
- if (name && *name && value && *value)
- {
- char *new_value = lt_extend_str (getenv (name), value, 0);
- /* some systems can't cope with a ':'-terminated path #' */
- size_t len = strlen (new_value);
- while ((len > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
- {
- new_value[--len] = '\0';
- }
- lt_setenv (name, new_value);
- XFREE (new_value);
- }
-}
-
-void
-lt_update_lib_path (const char *name, const char *value)
-{
- lt_debugprintf (__FILE__, __LINE__,
- "(lt_update_lib_path) modifying '%s' by prepending '%s'\n",
- nonnull (name), nonnull (value));
-
- if (name && *name && value && *value)
- {
- char *new_value = lt_extend_str (getenv (name), value, 0);
- lt_setenv (name, new_value);
- XFREE (new_value);
- }
-}
-
-EOF
- case $host_os in
- mingw*)
- cat <<"EOF"
-
-/* Prepares an argument vector before calling spawn().
- Note that spawn() does not by itself call the command interpreter
- (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") :
- ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
- GetVersionEx(&v);
- v.dwPlatformId == VER_PLATFORM_WIN32_NT;
- }) ? "cmd.exe" : "command.com").
- Instead it simply concatenates the arguments, separated by ' ', and calls
- CreateProcess(). We must quote the arguments since Win32 CreateProcess()
- interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a
- special way:
- - Space and tab are interpreted as delimiters. They are not treated as
- delimiters if they are surrounded by double quotes: "...".
- - Unescaped double quotes are removed from the input. Their only effect is
- that within double quotes, space and tab are treated like normal
- characters.
- - Backslashes not followed by double quotes are not special.
- - But 2*n+1 backslashes followed by a double quote become
- n backslashes followed by a double quote (n >= 0):
- \" -> "
- \\\" -> \"
- \\\\\" -> \\"
- */
-#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
-#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
-char **
-prepare_spawn (char **argv)
-{
- size_t argc;
- char **new_argv;
- size_t i;
-
- /* Count number of arguments. */
- for (argc = 0; argv[argc] != NULL; argc++)
- ;
-
- /* Allocate new argument vector. */
- new_argv = XMALLOC (char *, argc + 1);
-
- /* Put quoted arguments into the new argument vector. */
- for (i = 0; i < argc; i++)
- {
- const char *string = argv[i];
-
- if (string[0] == '\0')
- new_argv[i] = xstrdup ("\"\"");
- else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL)
- {
- int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL);
- size_t length;
- unsigned int backslashes;
- const char *s;
- char *quoted_string;
- char *p;
-
- length = 0;
- backslashes = 0;
- if (quote_around)
- length++;
- for (s = string; *s != '\0'; s++)
- {
- char c = *s;
- if (c == '"')
- length += backslashes + 1;
- length++;
- if (c == '\\')
- backslashes++;
- else
- backslashes = 0;
- }
- if (quote_around)
- length += backslashes + 1;
-
- quoted_string = XMALLOC (char, length + 1);
-
- p = quoted_string;
- backslashes = 0;
- if (quote_around)
- *p++ = '"';
- for (s = string; *s != '\0'; s++)
- {
- char c = *s;
- if (c == '"')
- {
- unsigned int j;
- for (j = backslashes + 1; j > 0; j--)
- *p++ = '\\';
- }
- *p++ = c;
- if (c == '\\')
- backslashes++;
- else
- backslashes = 0;
- }
- if (quote_around)
- {
- unsigned int j;
- for (j = backslashes; j > 0; j--)
- *p++ = '\\';
- *p++ = '"';
- }
- *p = '\0';
-
- new_argv[i] = quoted_string;
- }
- else
- new_argv[i] = (char *) string;
- }
- new_argv[argc] = NULL;
-
- return new_argv;
-}
-EOF
- ;;
- esac
-
- cat <<"EOF"
-void lt_dump_script (FILE* f)
-{
-EOF
- func_emit_wrapper yes |
- $SED -n -e '
-s/^\(.\{79\}\)\(..*\)/\1\
-\2/
-h
-s/\([\\"]\)/\\\1/g
-s/$/\\n/
-s/\([^\n]*\).*/ fputs ("\1", f);/p
-g
-D'
- cat <<"EOF"
-}
-EOF
-}
-# end: func_emit_cwrapperexe_src
-
-# func_win32_import_lib_p ARG
-# True if ARG is an import lib, as indicated by $file_magic_cmd
-func_win32_import_lib_p ()
-{
- $debug_cmd
-
- case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in
- *import*) : ;;
- *) false ;;
- esac
-}
-
-# func_suncc_cstd_abi
-# !!ONLY CALL THIS FOR SUN CC AFTER $compile_command IS FULLY EXPANDED!!
-# Several compiler flags select an ABI that is incompatible with the
-# Cstd library. Avoid specifying it if any are in CXXFLAGS.
-func_suncc_cstd_abi ()
-{
- $debug_cmd
-
- case " $compile_command " in
- *" -compat=g "*|*\ -std=c++[0-9][0-9]\ *|*" -library=stdcxx4 "*|*" -library=stlport4 "*)
- suncc_use_cstd_abi=no
- ;;
- *)
- suncc_use_cstd_abi=yes
- ;;
- esac
-}
-
-# func_mode_link arg...
-func_mode_link ()
-{
- $debug_cmd
-
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- # It is impossible to link a dll without this setting, and
- # we shouldn't force the makefile maintainer to figure out
- # what system we are compiling for in order to pass an extra
- # flag for every libtool invocation.
- # allow_undefined=no
-
- # FIXME: Unfortunately, there are problems with the above when trying
- # to make a dll that has undefined symbols, in which case not
- # even a static library is built. For now, we need to specify
- # -no-undefined on the libtool link line when we can be certain
- # that all symbols are satisfied, otherwise we get a static library.
- allow_undefined=yes
- ;;
- *)
- allow_undefined=yes
- ;;
- esac
- libtool_args=$nonopt
- base_compile="$nonopt $@"
- compile_command=$nonopt
- finalize_command=$nonopt
-
- compile_rpath=
- finalize_rpath=
- compile_shlibpath=
- finalize_shlibpath=
- convenience=
- old_convenience=
- deplibs=
- old_deplibs=
- compiler_flags=
- linker_flags=
- dllsearchpath=
- lib_search_path=`pwd`
- inst_prefix_dir=
- new_inherited_linker_flags=
-
- avoid_version=no
- bindir=
- dlfiles=
- dlprefiles=
- dlself=no
- export_dynamic=no
- export_symbols=
- export_symbols_regex=
- generated=
- libobjs=
- ltlibs=
- module=no
- no_install=no
- objs=
- os2dllname=
- non_pic_objects=
- precious_files_regex=
- prefer_static_libs=no
- preload=false
- prev=
- prevarg=
- release=
- rpath=
- xrpath=
- perm_rpath=
- temp_rpath=
- thread_safe=no
- vinfo=
- vinfo_number=no
- weak_libs=
- single_module=$wl-single_module
- func_infer_tag $base_compile
-
- # We need to know -static, to get the right output filenames.
- for arg
- do
- case $arg in
- -shared)
- test yes != "$build_libtool_libs" \
- && func_fatal_configuration "cannot build a shared library"
- build_old_libs=no
- break
- ;;
- -all-static | -static | -static-libtool-libs)
- case $arg in
- -all-static)
- if test yes = "$build_libtool_libs" && test -z "$link_static_flag"; then
- func_warning "complete static linking is impossible in this configuration"
- fi
- if test -n "$link_static_flag"; then
- dlopen_self=$dlopen_self_static
- fi
- prefer_static_libs=yes
- ;;
- -static)
- if test -z "$pic_flag" && test -n "$link_static_flag"; then
- dlopen_self=$dlopen_self_static
- fi
- prefer_static_libs=built
- ;;
- -static-libtool-libs)
- if test -z "$pic_flag" && test -n "$link_static_flag"; then
- dlopen_self=$dlopen_self_static
- fi
- prefer_static_libs=yes
- ;;
- esac
- build_libtool_libs=no
- build_old_libs=yes
- break
- ;;
- esac
- done
-
- # See if our shared archives depend on static archives.
- test -n "$old_archive_from_new_cmds" && build_old_libs=yes
-
- # Go through the arguments, transforming them on the way.
- while test "$#" -gt 0; do
- arg=$1
- shift
- func_quote_for_eval "$arg"
- qarg=$func_quote_for_eval_unquoted_result
- func_append libtool_args " $func_quote_for_eval_result"
-
- # If the previous option needs an argument, assign it.
- if test -n "$prev"; then
- case $prev in
- output)
- func_append compile_command " @OUTPUT@"
- func_append finalize_command " @OUTPUT@"
- ;;
- esac
-
- case $prev in
- bindir)
- bindir=$arg
- prev=
- continue
- ;;
- dlfiles|dlprefiles)
- $preload || {
- # Add the symbol object into the linking commands.
- func_append compile_command " @SYMFILE@"
- func_append finalize_command " @SYMFILE@"
- preload=:
- }
- case $arg in
- *.la | *.lo) ;; # We handle these cases below.
- force)
- if test no = "$dlself"; then
- dlself=needless
- export_dynamic=yes
- fi
- prev=
- continue
- ;;
- self)
- if test dlprefiles = "$prev"; then
- dlself=yes
- elif test dlfiles = "$prev" && test yes != "$dlopen_self"; then
- dlself=yes
- else
- dlself=needless
- export_dynamic=yes
- fi
- prev=
- continue
- ;;
- *)
- if test dlfiles = "$prev"; then
- func_append dlfiles " $arg"
- else
- func_append dlprefiles " $arg"
- fi
- prev=
- continue
- ;;
- esac
- ;;
- expsyms)
- export_symbols=$arg
- test -f "$arg" \
- || func_fatal_error "symbol file '$arg' does not exist"
- prev=
- continue
- ;;
- expsyms_regex)
- export_symbols_regex=$arg
- prev=
- continue
- ;;
- framework)
- case $host in
- *-*-darwin*)
- case "$deplibs " in
- *" $qarg.ltframework "*) ;;
- *) func_append deplibs " $qarg.ltframework" # this is fixed later
- ;;
- esac
- ;;
- esac
- prev=
- continue
- ;;
- inst_prefix)
- inst_prefix_dir=$arg
- prev=
- continue
- ;;
- mllvm)
- # Clang does not use LLVM to link, so we can simply discard any
- # '-mllvm $arg' options when doing the link step.
- prev=
- continue
- ;;
- objectlist)
- if test -f "$arg"; then
- save_arg=$arg
- moreargs=
- for fil in `cat "$save_arg"`
- do
-# func_append moreargs " $fil"
- arg=$fil
- # A libtool-controlled object.
-
- # Check to see that this really is a libtool object.
- if func_lalib_unsafe_p "$arg"; then
- pic_object=
- non_pic_object=
-
- # Read the .lo file
- func_source "$arg"
-
- if test -z "$pic_object" ||
- test -z "$non_pic_object" ||
- test none = "$pic_object" &&
- test none = "$non_pic_object"; then
- func_fatal_error "cannot find name of object for '$arg'"
- fi
-
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir=$func_dirname_result
-
- if test none != "$pic_object"; then
- # Prepend the subdirectory the object is found in.
- pic_object=$xdir$pic_object
-
- if test dlfiles = "$prev"; then
- if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then
- func_append dlfiles " $pic_object"
- prev=
- continue
- else
- # If libtool objects are unsupported, then we need to preload.
- prev=dlprefiles
- fi
- fi
-
- # CHECK ME: I think I busted this. -Ossama
- if test dlprefiles = "$prev"; then
- # Preload the old-style object.
- func_append dlprefiles " $pic_object"
- prev=
- fi
-
- # A PIC object.
- func_append libobjs " $pic_object"
- arg=$pic_object
- fi
-
- # Non-PIC object.
- if test none != "$non_pic_object"; then
- # Prepend the subdirectory the object is found in.
- non_pic_object=$xdir$non_pic_object
-
- # A standard non-PIC object
- func_append non_pic_objects " $non_pic_object"
- if test -z "$pic_object" || test none = "$pic_object"; then
- arg=$non_pic_object
- fi
- else
- # If the PIC object exists, use it instead.
- # $xdir was prepended to $pic_object above.
- non_pic_object=$pic_object
- func_append non_pic_objects " $non_pic_object"
- fi
- else
- # Only an error if not doing a dry-run.
- if $opt_dry_run; then
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir=$func_dirname_result
-
- func_lo2o "$arg"
- pic_object=$xdir$objdir/$func_lo2o_result
- non_pic_object=$xdir$func_lo2o_result
- func_append libobjs " $pic_object"
- func_append non_pic_objects " $non_pic_object"
- else
- func_fatal_error "'$arg' is not a valid libtool object"
- fi
- fi
- done
- else
- func_fatal_error "link input file '$arg' does not exist"
- fi
- arg=$save_arg
- prev=
- continue
- ;;
- os2dllname)
- os2dllname=$arg
- prev=
- continue
- ;;
- precious_regex)
- precious_files_regex=$arg
- prev=
- continue
- ;;
- release)
- release=-$arg
- prev=
- continue
- ;;
- rpath | xrpath)
- # We need an absolute path.
- case $arg in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- func_fatal_error "only absolute run-paths are allowed"
- ;;
- esac
- if test rpath = "$prev"; then
- case "$rpath " in
- *" $arg "*) ;;
- *) func_append rpath " $arg" ;;
- esac
- else
- case "$xrpath " in
- *" $arg "*) ;;
- *) func_append xrpath " $arg" ;;
- esac
- fi
- prev=
- continue
- ;;
- shrext)
- shrext_cmds=$arg
- prev=
- continue
- ;;
- weak)
- func_append weak_libs " $arg"
- prev=
- continue
- ;;
- xcclinker)
- func_append linker_flags " $qarg"
- func_append compiler_flags " $qarg"
- prev=
- func_append compile_command " $qarg"
- func_append finalize_command " $qarg"
- continue
- ;;
- xcompiler)
- func_append compiler_flags " $qarg"
- prev=
- func_append compile_command " $qarg"
- func_append finalize_command " $qarg"
- continue
- ;;
- xlinker)
- func_append linker_flags " $qarg"
- func_append compiler_flags " $wl$qarg"
- prev=
- func_append compile_command " $wl$qarg"
- func_append finalize_command " $wl$qarg"
- continue
- ;;
- *)
- eval "$prev=\"\$arg\""
- prev=
- continue
- ;;
- esac
- fi # test -n "$prev"
-
- prevarg=$arg
-
- case $arg in
- -all-static)
- if test -n "$link_static_flag"; then
- # See comment for -static flag below, for more details.
- func_append compile_command " $link_static_flag"
- func_append finalize_command " $link_static_flag"
- fi
- continue
- ;;
-
- -allow-undefined)
- # FIXME: remove this flag sometime in the future.
- func_fatal_error "'-allow-undefined' must not be used because it is the default"
- ;;
-
- -avoid-version)
- avoid_version=yes
- continue
- ;;
-
- -bindir)
- prev=bindir
- continue
- ;;
-
- -dlopen)
- prev=dlfiles
- continue
- ;;
-
- -dlpreopen)
- prev=dlprefiles
- continue
- ;;
-
- -export-dynamic)
- export_dynamic=yes
- continue
- ;;
-
- -export-symbols | -export-symbols-regex)
- if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
- func_fatal_error "more than one -exported-symbols argument is not allowed"
- fi
- if test X-export-symbols = "X$arg"; then
- prev=expsyms
- else
- prev=expsyms_regex
- fi
- continue
- ;;
-
- -framework)
- prev=framework
- continue
- ;;
-
- -inst-prefix-dir)
- prev=inst_prefix
- continue
- ;;
-
- # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
- # so, if we see these flags be careful not to treat them like -L
- -L[A-Z][A-Z]*:*)
- case $with_gcc/$host in
- no/*-*-irix* | /*-*-irix*)
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- ;;
- esac
- continue
- ;;
-
- -L*)
- func_stripname "-L" '' "$arg"
- if test -z "$func_stripname_result"; then
- if test "$#" -gt 0; then
- func_fatal_error "require no space between '-L' and '$1'"
- else
- func_fatal_error "need path for '-L' option"
- fi
- fi
- func_resolve_sysroot "$func_stripname_result"
- dir=$func_resolve_sysroot_result
- # We need an absolute path.
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- absdir=`cd "$dir" && pwd`
- test -z "$absdir" && \
- func_fatal_error "cannot determine absolute directory name of '$dir'"
- dir=$absdir
- ;;
- esac
- case "$deplibs " in
- *" -L$dir "* | *" $arg "*)
- # Will only happen for absolute or sysroot arguments
- ;;
- *)
- # Preserve sysroot, but never include relative directories
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]* | =*) func_append deplibs " $arg" ;;
- *) func_append deplibs " -L$dir" ;;
- esac
- func_append lib_search_path " $dir"
- ;;
- esac
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'`
- case :$dllsearchpath: in
- *":$dir:"*) ;;
- ::) dllsearchpath=$dir;;
- *) func_append dllsearchpath ":$dir";;
- esac
- case :$dllsearchpath: in
- *":$testbindir:"*) ;;
- ::) dllsearchpath=$testbindir;;
- *) func_append dllsearchpath ":$testbindir";;
- esac
- ;;
- esac
- continue
- ;;
-
- -l*)
- if test X-lc = "X$arg" || test X-lm = "X$arg"; then
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*)
- # These systems don't actually have a C or math library (as such)
- continue
- ;;
- *-*-os2*)
- # These systems don't actually have a C library (as such)
- test X-lc = "X$arg" && continue
- ;;
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*)
- # Do not include libc due to us having libc/libc_r.
- test X-lc = "X$arg" && continue
- ;;
- *-*-rhapsody* | *-*-darwin1.[012])
- # Rhapsody C and math libraries are in the System framework
- func_append deplibs " System.ltframework"
- continue
- ;;
- *-*-sco3.2v5* | *-*-sco5v6*)
- # Causes problems with __ctype
- test X-lc = "X$arg" && continue
- ;;
- *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
- # Compiler inserts libc in the correct place for threads to work
- test X-lc = "X$arg" && continue
- ;;
- esac
- elif test X-lc_r = "X$arg"; then
- case $host in
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*)
- # Do not include libc_r directly, use -pthread flag.
- continue
- ;;
- esac
- fi
- func_append deplibs " $arg"
- continue
- ;;
-
- -mllvm)
- prev=mllvm
- continue
- ;;
-
- -module)
- module=yes
- continue
- ;;
-
- # Tru64 UNIX uses -model [arg] to determine the layout of C++
- # classes, name mangling, and exception handling.
- # Darwin uses the -arch flag to determine output architecture.
- -model|-arch|-isysroot|--sysroot)
- func_append compiler_flags " $arg"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- prev=xcompiler
- continue
- ;;
-
- -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
- |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
- func_append compiler_flags " $arg"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- case "$new_inherited_linker_flags " in
- *" $arg "*) ;;
- * ) func_append new_inherited_linker_flags " $arg" ;;
- esac
- continue
- ;;
-
- -multi_module)
- single_module=$wl-multi_module
- continue
- ;;
-
- -no-fast-install)
- fast_install=no
- continue
- ;;
-
- -no-install)
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
- # The PATH hackery in wrapper scripts is required on Windows
- # and Darwin in order for the loader to find any dlls it needs.
- func_warning "'-no-install' is ignored for $host"
- func_warning "assuming '-no-fast-install' instead"
- fast_install=no
- ;;
- *) no_install=yes ;;
- esac
- continue
- ;;
-
- -no-undefined)
- allow_undefined=no
- continue
- ;;
-
- -objectlist)
- prev=objectlist
- continue
- ;;
-
- -os2dllname)
- prev=os2dllname
- continue
- ;;
-
- -o) prev=output ;;
-
- -precious-files-regex)
- prev=precious_regex
- continue
- ;;
-
- -release)
- prev=release
- continue
- ;;
-
- -rpath)
- prev=rpath
- continue
- ;;
-
- -R)
- prev=xrpath
- continue
- ;;
-
- -R*)
- func_stripname '-R' '' "$arg"
- dir=$func_stripname_result
- # We need an absolute path.
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- =*)
- func_stripname '=' '' "$dir"
- dir=$lt_sysroot$func_stripname_result
- ;;
- *)
- func_fatal_error "only absolute run-paths are allowed"
- ;;
- esac
- case "$xrpath " in
- *" $dir "*) ;;
- *) func_append xrpath " $dir" ;;
- esac
- continue
- ;;
-
- -shared)
- # The effects of -shared are defined in a previous loop.
- continue
- ;;
-
- -shrext)
- prev=shrext
- continue
- ;;
-
- -static | -static-libtool-libs)
- # The effects of -static are defined in a previous loop.
- # We used to do the same as -all-static on platforms that
- # didn't have a PIC flag, but the assumption that the effects
- # would be equivalent was wrong. It would break on at least
- # Digital Unix and AIX.
- continue
- ;;
-
- -thread-safe)
- thread_safe=yes
- continue
- ;;
-
- -version-info)
- prev=vinfo
- continue
- ;;
-
- -version-number)
- prev=vinfo
- vinfo_number=yes
- continue
- ;;
-
- -weak)
- prev=weak
- continue
- ;;
-
- -Wc,*)
- func_stripname '-Wc,' '' "$arg"
- args=$func_stripname_result
- arg=
- save_ifs=$IFS; IFS=,
- for flag in $args; do
- IFS=$save_ifs
- func_quote_for_eval "$flag"
- func_append arg " $func_quote_for_eval_result"
- func_append compiler_flags " $func_quote_for_eval_result"
- done
- IFS=$save_ifs
- func_stripname ' ' '' "$arg"
- arg=$func_stripname_result
- ;;
-
- -Wl,*)
- func_stripname '-Wl,' '' "$arg"
- args=$func_stripname_result
- arg=
- save_ifs=$IFS; IFS=,
- for flag in $args; do
- IFS=$save_ifs
- func_quote_for_eval "$flag"
- func_append arg " $wl$func_quote_for_eval_result"
- func_append compiler_flags " $wl$func_quote_for_eval_result"
- func_append linker_flags " $func_quote_for_eval_result"
- done
- IFS=$save_ifs
- func_stripname ' ' '' "$arg"
- arg=$func_stripname_result
- ;;
-
- -Xcompiler)
- prev=xcompiler
- continue
- ;;
-
- -Xlinker)
- prev=xlinker
- continue
- ;;
-
- -XCClinker)
- prev=xcclinker
- continue
- ;;
-
- # -msg_* for osf cc
- -msg_*)
- func_quote_for_eval "$arg"
- arg=$func_quote_for_eval_result
- ;;
-
- # Flags to be passed through unchanged, with rationale:
- # -64, -mips[0-9] enable 64-bit mode for the SGI compiler
- # -r[0-9][0-9]* specify processor for the SGI compiler
- # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler
- # +DA*, +DD* enable 64-bit mode for the HP compiler
- # -q* compiler args for the IBM compiler
- # -m*, -t[45]*, -txscale* architecture-specific flags for GCC
- # -F/path path to uninstalled frameworks, gcc on darwin
- # -p, -pg, --coverage, -fprofile-* profiling flags for GCC
- # -fstack-protector* stack protector flags for GCC
- # @file GCC response files
- # -tp=* Portland pgcc target processor selection
- # --sysroot=* for sysroot support
- # -O*, -g*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
- # -stdlib=* select c++ std lib with clang
- -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
- -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
- -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*)
- func_quote_for_eval "$arg"
- arg=$func_quote_for_eval_result
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- func_append compiler_flags " $arg"
- continue
- ;;
-
- -Z*)
- if test os2 = "`expr $host : '.*\(os2\)'`"; then
- # OS/2 uses -Zxxx to specify OS/2-specific options
- compiler_flags="$compiler_flags $arg"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- case $arg in
- -Zlinker | -Zstack)
- prev=xcompiler
- ;;
- esac
- continue
- else
- # Otherwise treat like 'Some other compiler flag' below
- func_quote_for_eval "$arg"
- arg=$func_quote_for_eval_result
- fi
- ;;
-
- # Some other compiler flag.
- -* | +*)
- func_quote_for_eval "$arg"
- arg=$func_quote_for_eval_result
- ;;
-
- *.$objext)
- # A standard object.
- func_append objs " $arg"
- ;;
-
- *.lo)
- # A libtool-controlled object.
-
- # Check to see that this really is a libtool object.
- if func_lalib_unsafe_p "$arg"; then
- pic_object=
- non_pic_object=
-
- # Read the .lo file
- func_source "$arg"
-
- if test -z "$pic_object" ||
- test -z "$non_pic_object" ||
- test none = "$pic_object" &&
- test none = "$non_pic_object"; then
- func_fatal_error "cannot find name of object for '$arg'"
- fi
-
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir=$func_dirname_result
-
- test none = "$pic_object" || {
- # Prepend the subdirectory the object is found in.
- pic_object=$xdir$pic_object
-
- if test dlfiles = "$prev"; then
- if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then
- func_append dlfiles " $pic_object"
- prev=
- continue
- else
- # If libtool objects are unsupported, then we need to preload.
- prev=dlprefiles
- fi
- fi
-
- # CHECK ME: I think I busted this. -Ossama
- if test dlprefiles = "$prev"; then
- # Preload the old-style object.
- func_append dlprefiles " $pic_object"
- prev=
- fi
-
- # A PIC object.
- func_append libobjs " $pic_object"
- arg=$pic_object
- }
-
- # Non-PIC object.
- if test none != "$non_pic_object"; then
- # Prepend the subdirectory the object is found in.
- non_pic_object=$xdir$non_pic_object
-
- # A standard non-PIC object
- func_append non_pic_objects " $non_pic_object"
- if test -z "$pic_object" || test none = "$pic_object"; then
- arg=$non_pic_object
- fi
- else
- # If the PIC object exists, use it instead.
- # $xdir was prepended to $pic_object above.
- non_pic_object=$pic_object
- func_append non_pic_objects " $non_pic_object"
- fi
- else
- # Only an error if not doing a dry-run.
- if $opt_dry_run; then
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir=$func_dirname_result
-
- func_lo2o "$arg"
- pic_object=$xdir$objdir/$func_lo2o_result
- non_pic_object=$xdir$func_lo2o_result
- func_append libobjs " $pic_object"
- func_append non_pic_objects " $non_pic_object"
- else
- func_fatal_error "'$arg' is not a valid libtool object"
- fi
- fi
- ;;
-
- *.$libext)
- # An archive.
- func_append deplibs " $arg"
- func_append old_deplibs " $arg"
- continue
- ;;
-
- *.la)
- # A libtool-controlled library.
-
- func_resolve_sysroot "$arg"
- if test dlfiles = "$prev"; then
- # This library was specified with -dlopen.
- func_append dlfiles " $func_resolve_sysroot_result"
- prev=
- elif test dlprefiles = "$prev"; then
- # The library was specified with -dlpreopen.
- func_append dlprefiles " $func_resolve_sysroot_result"
- prev=
- else
- func_append deplibs " $func_resolve_sysroot_result"
- fi
- continue
- ;;
-
- # Some other compiler argument.
- *)
- # Unknown arguments in both finalize_command and compile_command need
- # to be aesthetically quoted because they are evaled later.
- func_quote_for_eval "$arg"
- arg=$func_quote_for_eval_result
- ;;
- esac # arg
-
- # Now actually substitute the argument into the commands.
- if test -n "$arg"; then
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- fi
- done # argument parsing loop
-
- test -n "$prev" && \
- func_fatal_help "the '$prevarg' option requires an argument"
-
- if test yes = "$export_dynamic" && test -n "$export_dynamic_flag_spec"; then
- eval arg=\"$export_dynamic_flag_spec\"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- fi
-
- oldlibs=
- # calculate the name of the file, without its directory
- func_basename "$output"
- outputname=$func_basename_result
- libobjs_save=$libobjs
-
- if test -n "$shlibpath_var"; then
- # get the directories listed in $shlibpath_var
- eval shlib_search_path=\`\$ECHO \"\$$shlibpath_var\" \| \$SED \'s/:/ /g\'\`
- else
- shlib_search_path=
- fi
- eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
- eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"
-
- # Definition is injected by LT_CONFIG during libtool generation.
- func_munge_path_list sys_lib_dlsearch_path "$LT_SYS_LIBRARY_PATH"
-
- func_dirname "$output" "/" ""
- output_objdir=$func_dirname_result$objdir
- func_to_tool_file "$output_objdir/"
- tool_output_objdir=$func_to_tool_file_result
- # Create the object directory.
- func_mkdir_p "$output_objdir"
-
- # Determine the type of output
- case $output in
- "")
- func_fatal_help "you must specify an output file"
- ;;
- *.$libext) linkmode=oldlib ;;
- *.lo | *.$objext) linkmode=obj ;;
- *.la) linkmode=lib ;;
- *) linkmode=prog ;; # Anything else should be a program.
- esac
-
- specialdeplibs=
-
- libs=
- # Find all interdependent deplibs by searching for libraries
- # that are linked more than once (e.g. -la -lb -la)
- for deplib in $deplibs; do
- if $opt_preserve_dup_deps; then
- case "$libs " in
- *" $deplib "*) func_append specialdeplibs " $deplib" ;;
- esac
- fi
- func_append libs " $deplib"
- done
-
- if test lib = "$linkmode"; then
- libs="$predeps $libs $compiler_lib_search_path $postdeps"
-
- # Compute libraries that are listed more than once in $predeps
- # $postdeps and mark them as special (i.e., whose duplicates are
- # not to be eliminated).
- pre_post_deps=
- if $opt_duplicate_compiler_generated_deps; then
- for pre_post_dep in $predeps $postdeps; do
- case "$pre_post_deps " in
- *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;;
- esac
- func_append pre_post_deps " $pre_post_dep"
- done
- fi
- pre_post_deps=
- fi
-
- deplibs=
- newdependency_libs=
- newlib_search_path=
- need_relink=no # whether we're linking any uninstalled libtool libraries
- notinst_deplibs= # not-installed libtool libraries
- notinst_path= # paths that contain not-installed libtool libraries
-
- case $linkmode in
- lib)
- passes="conv dlpreopen link"
- for file in $dlfiles $dlprefiles; do
- case $file in
- *.la) ;;
- *)
- func_fatal_help "libraries can '-dlopen' only libtool libraries: $file"
- ;;
- esac
- done
- ;;
- prog)
- compile_deplibs=
- finalize_deplibs=
- alldeplibs=false
- newdlfiles=
- newdlprefiles=
- passes="conv scan dlopen dlpreopen link"
- ;;
- *) passes="conv"
- ;;
- esac
-
- for pass in $passes; do
- # The preopen pass in lib mode reverses $deplibs; put it back here
- # so that -L comes before libs that need it for instance...
- if test lib,link = "$linkmode,$pass"; then
- ## FIXME: Find the place where the list is rebuilt in the wrong
- ## order, and fix it there properly
- tmp_deplibs=
- for deplib in $deplibs; do
- tmp_deplibs="$deplib $tmp_deplibs"
- done
- deplibs=$tmp_deplibs
- fi
-
- if test lib,link = "$linkmode,$pass" ||
- test prog,scan = "$linkmode,$pass"; then
- libs=$deplibs
- deplibs=
- fi
- if test prog = "$linkmode"; then
- case $pass in
- dlopen) libs=$dlfiles ;;
- dlpreopen) libs=$dlprefiles ;;
- link) libs="$deplibs %DEPLIBS% $dependency_libs" ;;
- esac
- fi
- if test lib,dlpreopen = "$linkmode,$pass"; then
- # Collect and forward deplibs of preopened libtool libs
- for lib in $dlprefiles; do
- # Ignore non-libtool-libs
- dependency_libs=
- func_resolve_sysroot "$lib"
- case $lib in
- *.la) func_source "$func_resolve_sysroot_result" ;;
- esac
-
- # Collect preopened libtool deplibs, except any this library
- # has declared as weak libs
- for deplib in $dependency_libs; do
- func_basename "$deplib"
- deplib_base=$func_basename_result
- case " $weak_libs " in
- *" $deplib_base "*) ;;
- *) func_append deplibs " $deplib" ;;
- esac
- done
- done
- libs=$dlprefiles
- fi
- if test dlopen = "$pass"; then
- # Collect dlpreopened libraries
- save_deplibs=$deplibs
- deplibs=
- fi
-
- for deplib in $libs; do
- lib=
- found=false
- case $deplib in
- -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
- |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
- if test prog,link = "$linkmode,$pass"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- func_append compiler_flags " $deplib"
- if test lib = "$linkmode"; then
- case "$new_inherited_linker_flags " in
- *" $deplib "*) ;;
- * ) func_append new_inherited_linker_flags " $deplib" ;;
- esac
- fi
- fi
- continue
- ;;
- -l*)
- if test lib != "$linkmode" && test prog != "$linkmode"; then
- func_warning "'-l' is ignored for archives/objects"
- continue
- fi
- func_stripname '-l' '' "$deplib"
- name=$func_stripname_result
- if test lib = "$linkmode"; then
- searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path"
- else
- searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path"
- fi
- for searchdir in $searchdirs; do
- for search_ext in .la $std_shrext .so .a; do
- # Search the libtool library
- lib=$searchdir/lib$name$search_ext
- if test -f "$lib"; then
- if test .la = "$search_ext"; then
- found=:
- else
- found=false
- fi
- break 2
- fi
- done
- done
- if $found; then
- # deplib is a libtool library
- # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib,
- # We need to do some special things here, and not later.
- if test yes = "$allow_libtool_libs_with_static_runtimes"; then
- case " $predeps $postdeps " in
- *" $deplib "*)
- if func_lalib_p "$lib"; then
- library_names=
- old_library=
- func_source "$lib"
- for l in $old_library $library_names; do
- ll=$l
- done
- if test "X$ll" = "X$old_library"; then # only static version available
- found=false
- func_dirname "$lib" "" "."
- ladir=$func_dirname_result
- lib=$ladir/$old_library
- if test prog,link = "$linkmode,$pass"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs"
- fi
- continue
- fi
- fi
- ;;
- *) ;;
- esac
- fi
- else
- # deplib doesn't seem to be a libtool library
- if test prog,link = "$linkmode,$pass"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs"
- fi
- continue
- fi
- ;; # -l
- *.ltframework)
- if test prog,link = "$linkmode,$pass"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- if test lib = "$linkmode"; then
- case "$new_inherited_linker_flags " in
- *" $deplib "*) ;;
- * ) func_append new_inherited_linker_flags " $deplib" ;;
- esac
- fi
- fi
- continue
- ;;
- -L*)
- case $linkmode in
- lib)
- deplibs="$deplib $deplibs"
- test conv = "$pass" && continue
- newdependency_libs="$deplib $newdependency_libs"
- func_stripname '-L' '' "$deplib"
- func_resolve_sysroot "$func_stripname_result"
- func_append newlib_search_path " $func_resolve_sysroot_result"
- ;;
- prog)
- if test conv = "$pass"; then
- deplibs="$deplib $deplibs"
- continue
- fi
- if test scan = "$pass"; then
- deplibs="$deplib $deplibs"
- else
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- fi
- func_stripname '-L' '' "$deplib"
- func_resolve_sysroot "$func_stripname_result"
- func_append newlib_search_path " $func_resolve_sysroot_result"
- ;;
- *)
- func_warning "'-L' is ignored for archives/objects"
- ;;
- esac # linkmode
- continue
- ;; # -L
- -R*)
- if test link = "$pass"; then
- func_stripname '-R' '' "$deplib"
- func_resolve_sysroot "$func_stripname_result"
- dir=$func_resolve_sysroot_result
- # Make sure the xrpath contains only unique directories.
- case "$xrpath " in
- *" $dir "*) ;;
- *) func_append xrpath " $dir" ;;
- esac
- fi
- deplibs="$deplib $deplibs"
- continue
- ;;
- *.la)
- func_resolve_sysroot "$deplib"
- lib=$func_resolve_sysroot_result
- ;;
- *.$libext)
- if test conv = "$pass"; then
- deplibs="$deplib $deplibs"
- continue
- fi
- case $linkmode in
- lib)
- # Linking convenience modules into shared libraries is allowed,
- # but linking other static libraries is non-portable.
- case " $dlpreconveniencelibs " in
- *" $deplib "*) ;;
- *)
- valid_a_lib=false
- case $deplibs_check_method in
- match_pattern*)
- set dummy $deplibs_check_method; shift
- match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
- if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \
- | $EGREP "$match_pattern_regex" > /dev/null; then
- valid_a_lib=:
- fi
- ;;
- pass_all)
- valid_a_lib=:
- ;;
- esac
- if $valid_a_lib; then
- echo
- $ECHO "*** Warning: Linking the shared library $output against the"
- $ECHO "*** static library $deplib is not portable!"
- deplibs="$deplib $deplibs"
- else
- echo
- $ECHO "*** Warning: Trying to link with static lib archive $deplib."
- echo "*** I have the capability to make that library automatically link in when"
- echo "*** you link to this library. But I can only do this if you have a"
- echo "*** shared version of the library, which you do not appear to have"
- echo "*** because the file extensions .$libext of this argument makes me believe"
- echo "*** that it is just a static archive that I should not use here."
- fi
- ;;
- esac
- continue
- ;;
- prog)
- if test link != "$pass"; then
- deplibs="$deplib $deplibs"
- else
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- fi
- continue
- ;;
- esac # linkmode
- ;; # *.$libext
- *.lo | *.$objext)
- if test conv = "$pass"; then
- deplibs="$deplib $deplibs"
- elif test prog = "$linkmode"; then
- if test dlpreopen = "$pass" || test yes != "$dlopen_support" || test no = "$build_libtool_libs"; then
- # If there is no dlopen support or we're linking statically,
- # we need to preload.
- func_append newdlprefiles " $deplib"
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- func_append newdlfiles " $deplib"
- fi
- fi
- continue
- ;;
- %DEPLIBS%)
- alldeplibs=:
- continue
- ;;
- esac # case $deplib
-
- $found || test -f "$lib" \
- || func_fatal_error "cannot find the library '$lib' or unhandled argument '$deplib'"
-
- # Check to see that this really is a libtool archive.
- func_lalib_unsafe_p "$lib" \
- || func_fatal_error "'$lib' is not a valid libtool archive"
-
- func_dirname "$lib" "" "."
- ladir=$func_dirname_result
-
- dlname=
- dlopen=
- dlpreopen=
- libdir=
- library_names=
- old_library=
- inherited_linker_flags=
- # If the library was installed with an old release of libtool,
- # it will not redefine variables installed, or shouldnotlink
- installed=yes
- shouldnotlink=no
- avoidtemprpath=
-
-
- # Read the .la file
- func_source "$lib"
-
- # Convert "-framework foo" to "foo.ltframework"
- if test -n "$inherited_linker_flags"; then
- tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'`
- for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do
- case " $new_inherited_linker_flags " in
- *" $tmp_inherited_linker_flag "*) ;;
- *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";;
- esac
- done
- fi
- dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
- if test lib,link = "$linkmode,$pass" ||
- test prog,scan = "$linkmode,$pass" ||
- { test prog != "$linkmode" && test lib != "$linkmode"; }; then
- test -n "$dlopen" && func_append dlfiles " $dlopen"
- test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen"
- fi
-
- if test conv = "$pass"; then
- # Only check for convenience libraries
- deplibs="$lib $deplibs"
- if test -z "$libdir"; then
- if test -z "$old_library"; then
- func_fatal_error "cannot find name of link library for '$lib'"
- fi
- # It is a libtool convenience library, so add in its objects.
- func_append convenience " $ladir/$objdir/$old_library"
- func_append old_convenience " $ladir/$objdir/$old_library"
- elif test prog != "$linkmode" && test lib != "$linkmode"; then
- func_fatal_error "'$lib' is not a convenience library"
- fi
- tmp_libs=
- for deplib in $dependency_libs; do
- deplibs="$deplib $deplibs"
- if $opt_preserve_dup_deps; then
- case "$tmp_libs " in
- *" $deplib "*) func_append specialdeplibs " $deplib" ;;
- esac
- fi
- func_append tmp_libs " $deplib"
- done
- continue
- fi # $pass = conv
-
-
- # Get the name of the library we link against.
- linklib=
- if test -n "$old_library" &&
- { test yes = "$prefer_static_libs" ||
- test built,no = "$prefer_static_libs,$installed"; }; then
- linklib=$old_library
- else
- for l in $old_library $library_names; do
- linklib=$l
- done
- fi
- if test -z "$linklib"; then
- func_fatal_error "cannot find name of link library for '$lib'"
- fi
-
- # This library was specified with -dlopen.
- if test dlopen = "$pass"; then
- test -z "$libdir" \
- && func_fatal_error "cannot -dlopen a convenience library: '$lib'"
- if test -z "$dlname" ||
- test yes != "$dlopen_support" ||
- test no = "$build_libtool_libs"
- then
- # If there is no dlname, no dlopen support or we're linking
- # statically, we need to preload. We also need to preload any
- # dependent libraries so libltdl's deplib preloader doesn't
- # bomb out in the load deplibs phase.
- func_append dlprefiles " $lib $dependency_libs"
- else
- func_append newdlfiles " $lib"
- fi
- continue
- fi # $pass = dlopen
-
- # We need an absolute path.
- case $ladir in
- [\\/]* | [A-Za-z]:[\\/]*) abs_ladir=$ladir ;;
- *)
- abs_ladir=`cd "$ladir" && pwd`
- if test -z "$abs_ladir"; then
- func_warning "cannot determine absolute directory name of '$ladir'"
- func_warning "passing it literally to the linker, although it might fail"
- abs_ladir=$ladir
- fi
- ;;
- esac
- func_basename "$lib"
- laname=$func_basename_result
-
- # Find the relevant object directory and library name.
- if test yes = "$installed"; then
- if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
- func_warning "library '$lib' was moved."
- dir=$ladir
- absdir=$abs_ladir
- libdir=$abs_ladir
- else
- dir=$lt_sysroot$libdir
- absdir=$lt_sysroot$libdir
- fi
- test yes = "$hardcode_automatic" && avoidtemprpath=yes
- else
- if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then
- dir=$ladir
- absdir=$abs_ladir
- # Remove this search path later
- func_append notinst_path " $abs_ladir"
- else
- dir=$ladir/$objdir
- absdir=$abs_ladir/$objdir
- # Remove this search path later
- func_append notinst_path " $abs_ladir"
- fi
- fi # $installed = yes
- func_stripname 'lib' '.la' "$laname"
- name=$func_stripname_result
-
- # This library was specified with -dlpreopen.
- if test dlpreopen = "$pass"; then
- if test -z "$libdir" && test prog = "$linkmode"; then
- func_fatal_error "only libraries may -dlpreopen a convenience library: '$lib'"
- fi
- case $host in
- # special handling for platforms with PE-DLLs.
- *cygwin* | *mingw* | *cegcc* )
- # Linker will automatically link against shared library if both
- # static and shared are present. Therefore, ensure we extract
- # symbols from the import library if a shared library is present
- # (otherwise, the dlopen module name will be incorrect). We do
- # this by putting the import library name into $newdlprefiles.
- # We recover the dlopen module name by 'saving' the la file
- # name in a special purpose variable, and (later) extracting the
- # dlname from the la file.
- if test -n "$dlname"; then
- func_tr_sh "$dir/$linklib"
- eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname"
- func_append newdlprefiles " $dir/$linklib"
- else
- func_append newdlprefiles " $dir/$old_library"
- # Keep a list of preopened convenience libraries to check
- # that they are being used correctly in the link pass.
- test -z "$libdir" && \
- func_append dlpreconveniencelibs " $dir/$old_library"
- fi
- ;;
- * )
- # Prefer using a static library (so that no silly _DYNAMIC symbols
- # are required to link).
- if test -n "$old_library"; then
- func_append newdlprefiles " $dir/$old_library"
- # Keep a list of preopened convenience libraries to check
- # that they are being used correctly in the link pass.
- test -z "$libdir" && \
- func_append dlpreconveniencelibs " $dir/$old_library"
- # Otherwise, use the dlname, so that lt_dlopen finds it.
- elif test -n "$dlname"; then
- func_append newdlprefiles " $dir/$dlname"
- else
- func_append newdlprefiles " $dir/$linklib"
- fi
- ;;
- esac
- fi # $pass = dlpreopen
-
- if test -z "$libdir"; then
- # Link the convenience library
- if test lib = "$linkmode"; then
- deplibs="$dir/$old_library $deplibs"
- elif test prog,link = "$linkmode,$pass"; then
- compile_deplibs="$dir/$old_library $compile_deplibs"
- finalize_deplibs="$dir/$old_library $finalize_deplibs"
- else
- deplibs="$lib $deplibs" # used for prog,scan pass
- fi
- continue
- fi
-
-
- if test prog = "$linkmode" && test link != "$pass"; then
- func_append newlib_search_path " $ladir"
- deplibs="$lib $deplibs"
-
- linkalldeplibs=false
- if test no != "$link_all_deplibs" || test -z "$library_names" ||
- test no = "$build_libtool_libs"; then
- linkalldeplibs=:
- fi
-
- tmp_libs=
- for deplib in $dependency_libs; do
- case $deplib in
- -L*) func_stripname '-L' '' "$deplib"
- func_resolve_sysroot "$func_stripname_result"
- func_append newlib_search_path " $func_resolve_sysroot_result"
- ;;
- esac
- # Need to link against all dependency_libs?
- if $linkalldeplibs; then
- deplibs="$deplib $deplibs"
- else
- # Need to hardcode shared library paths
- # or/and link against static libraries
- newdependency_libs="$deplib $newdependency_libs"
- fi
- if $opt_preserve_dup_deps; then
- case "$tmp_libs " in
- *" $deplib "*) func_append specialdeplibs " $deplib" ;;
- esac
- fi
- func_append tmp_libs " $deplib"
- done # for deplib
- continue
- fi # $linkmode = prog...
-
- if test prog,link = "$linkmode,$pass"; then
- if test -n "$library_names" &&
- { { test no = "$prefer_static_libs" ||
- test built,yes = "$prefer_static_libs,$installed"; } ||
- test -z "$old_library"; }; then
- # We need to hardcode the library path
- if test -n "$shlibpath_var" && test -z "$avoidtemprpath"; then
- # Make sure the rpath contains only unique directories.
- case $temp_rpath: in
- *"$absdir:"*) ;;
- *) func_append temp_rpath "$absdir:" ;;
- esac
- fi
-
- # Hardcode the library path.
- # Skip directories that are in the system default run-time
- # search path.
- case " $sys_lib_dlsearch_path " in
- *" $absdir "*) ;;
- *)
- case "$compile_rpath " in
- *" $absdir "*) ;;
- *) func_append compile_rpath " $absdir" ;;
- esac
- ;;
- esac
- case " $sys_lib_dlsearch_path " in
- *" $libdir "*) ;;
- *)
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) func_append finalize_rpath " $libdir" ;;
- esac
- ;;
- esac
- fi # $linkmode,$pass = prog,link...
-
- if $alldeplibs &&
- { test pass_all = "$deplibs_check_method" ||
- { test yes = "$build_libtool_libs" &&
- test -n "$library_names"; }; }; then
- # We only need to search for static libraries
- continue
- fi
- fi
-
- link_static=no # Whether the deplib will be linked statically
- use_static_libs=$prefer_static_libs
- if test built = "$use_static_libs" && test yes = "$installed"; then
- use_static_libs=no
- fi
- if test -n "$library_names" &&
- { test no = "$use_static_libs" || test -z "$old_library"; }; then
- case $host in
- *cygwin* | *mingw* | *cegcc* | *os2*)
- # No point in relinking DLLs because paths are not encoded
- func_append notinst_deplibs " $lib"
- need_relink=no
- ;;
- *)
- if test no = "$installed"; then
- func_append notinst_deplibs " $lib"
- need_relink=yes
- fi
- ;;
- esac
- # This is a shared library
-
- # Warn about portability, can't link against -module's on some
- # systems (darwin). Don't bleat about dlopened modules though!
- dlopenmodule=
- for dlpremoduletest in $dlprefiles; do
- if test "X$dlpremoduletest" = "X$lib"; then
- dlopenmodule=$dlpremoduletest
- break
- fi
- done
- if test -z "$dlopenmodule" && test yes = "$shouldnotlink" && test link = "$pass"; then
- echo
- if test prog = "$linkmode"; then
- $ECHO "*** Warning: Linking the executable $output against the loadable module"
- else
- $ECHO "*** Warning: Linking the shared library $output against the loadable module"
- fi
- $ECHO "*** $linklib is not portable!"
- fi
- if test lib = "$linkmode" &&
- test yes = "$hardcode_into_libs"; then
- # Hardcode the library path.
- # Skip directories that are in the system default run-time
- # search path.
- case " $sys_lib_dlsearch_path " in
- *" $absdir "*) ;;
- *)
- case "$compile_rpath " in
- *" $absdir "*) ;;
- *) func_append compile_rpath " $absdir" ;;
- esac
- ;;
- esac
- case " $sys_lib_dlsearch_path " in
- *" $libdir "*) ;;
- *)
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) func_append finalize_rpath " $libdir" ;;
- esac
- ;;
- esac
- fi
-
- if test -n "$old_archive_from_expsyms_cmds"; then
- # figure out the soname
- set dummy $library_names
- shift
- realname=$1
- shift
- libname=`eval "\\$ECHO \"$libname_spec\""`
- # use dlname if we got it. it's perfectly good, no?
- if test -n "$dlname"; then
- soname=$dlname
- elif test -n "$soname_spec"; then
- # bleh windows
- case $host in
- *cygwin* | mingw* | *cegcc* | *os2*)
- func_arith $current - $age
- major=$func_arith_result
- versuffix=-$major
- ;;
- esac
- eval soname=\"$soname_spec\"
- else
- soname=$realname
- fi
-
- # Make a new name for the extract_expsyms_cmds to use
- soroot=$soname
- func_basename "$soroot"
- soname=$func_basename_result
- func_stripname 'lib' '.dll' "$soname"
- newlib=libimp-$func_stripname_result.a
-
- # If the library has no export list, then create one now
- if test -f "$output_objdir/$soname-def"; then :
- else
- func_verbose "extracting exported symbol list from '$soname'"
- func_execute_cmds "$extract_expsyms_cmds" 'exit $?'
- fi
-
- # Create $newlib
- if test -f "$output_objdir/$newlib"; then :; else
- func_verbose "generating import library for '$soname'"
- func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?'
- fi
- # make sure the library variables are pointing to the new library
- dir=$output_objdir
- linklib=$newlib
- fi # test -n "$old_archive_from_expsyms_cmds"
-
- if test prog = "$linkmode" || test relink != "$opt_mode"; then
- add_shlibpath=
- add_dir=
- add=
- lib_linked=yes
- case $hardcode_action in
- immediate | unsupported)
- if test no = "$hardcode_direct"; then
- add=$dir/$linklib
- case $host in
- *-*-sco3.2v5.0.[024]*) add_dir=-L$dir ;;
- *-*-sysv4*uw2*) add_dir=-L$dir ;;
- *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \
- *-*-unixware7*) add_dir=-L$dir ;;
- *-*-darwin* )
- # if the lib is a (non-dlopened) module then we cannot
- # link against it, someone is ignoring the earlier warnings
- if /usr/bin/file -L $add 2> /dev/null |
- $GREP ": [^:]* bundle" >/dev/null; then
- if test "X$dlopenmodule" != "X$lib"; then
- $ECHO "*** Warning: lib $linklib is a module, not a shared library"
- if test -z "$old_library"; then
- echo
- echo "*** And there doesn't seem to be a static archive available"
- echo "*** The link will probably fail, sorry"
- else
- add=$dir/$old_library
- fi
- elif test -n "$old_library"; then
- add=$dir/$old_library
- fi
- fi
- esac
- elif test no = "$hardcode_minus_L"; then
- case $host in
- *-*-sunos*) add_shlibpath=$dir ;;
- esac
- add_dir=-L$dir
- add=-l$name
- elif test no = "$hardcode_shlibpath_var"; then
- add_shlibpath=$dir
- add=-l$name
- else
- lib_linked=no
- fi
- ;;
- relink)
- if test yes = "$hardcode_direct" &&
- test no = "$hardcode_direct_absolute"; then
- add=$dir/$linklib
- elif test yes = "$hardcode_minus_L"; then
- add_dir=-L$absdir
- # Try looking first in the location we're being installed to.
- if test -n "$inst_prefix_dir"; then
- case $libdir in
- [\\/]*)
- func_append add_dir " -L$inst_prefix_dir$libdir"
- ;;
- esac
- fi
- add=-l$name
- elif test yes = "$hardcode_shlibpath_var"; then
- add_shlibpath=$dir
- add=-l$name
- else
- lib_linked=no
- fi
- ;;
- *) lib_linked=no ;;
- esac
-
- if test yes != "$lib_linked"; then
- func_fatal_configuration "unsupported hardcode properties"
- fi
-
- if test -n "$add_shlibpath"; then
- case :$compile_shlibpath: in
- *":$add_shlibpath:"*) ;;
- *) func_append compile_shlibpath "$add_shlibpath:" ;;
- esac
- fi
- if test prog = "$linkmode"; then
- test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
- test -n "$add" && compile_deplibs="$add $compile_deplibs"
- else
- test -n "$add_dir" && deplibs="$add_dir $deplibs"
- test -n "$add" && deplibs="$add $deplibs"
- if test yes != "$hardcode_direct" &&
- test yes != "$hardcode_minus_L" &&
- test yes = "$hardcode_shlibpath_var"; then
- case :$finalize_shlibpath: in
- *":$libdir:"*) ;;
- *) func_append finalize_shlibpath "$libdir:" ;;
- esac
- fi
- fi
- fi
-
- if test prog = "$linkmode" || test relink = "$opt_mode"; then
- add_shlibpath=
- add_dir=
- add=
- # Finalize command for both is simple: just hardcode it.
- if test yes = "$hardcode_direct" &&
- test no = "$hardcode_direct_absolute"; then
- add=$libdir/$linklib
- elif test yes = "$hardcode_minus_L"; then
- add_dir=-L$libdir
- add=-l$name
- elif test yes = "$hardcode_shlibpath_var"; then
- case :$finalize_shlibpath: in
- *":$libdir:"*) ;;
- *) func_append finalize_shlibpath "$libdir:" ;;
- esac
- add=-l$name
- elif test yes = "$hardcode_automatic"; then
- if test -n "$inst_prefix_dir" &&
- test -f "$inst_prefix_dir$libdir/$linklib"; then
- add=$inst_prefix_dir$libdir/$linklib
- else
- add=$libdir/$linklib
- fi
- else
- # We cannot seem to hardcode it, guess we'll fake it.
- add_dir=-L$libdir
- # Try looking first in the location we're being installed to.
- if test -n "$inst_prefix_dir"; then
- case $libdir in
- [\\/]*)
- func_append add_dir " -L$inst_prefix_dir$libdir"
- ;;
- esac
- fi
- add=-l$name
- fi
-
- if test prog = "$linkmode"; then
- test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
- test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
- else
- test -n "$add_dir" && deplibs="$add_dir $deplibs"
- test -n "$add" && deplibs="$add $deplibs"
- fi
- fi
- elif test prog = "$linkmode"; then
- # Here we assume that one of hardcode_direct or hardcode_minus_L
- # is not unsupported. This is valid on all known static and
- # shared platforms.
- if test unsupported != "$hardcode_direct"; then
- test -n "$old_library" && linklib=$old_library
- compile_deplibs="$dir/$linklib $compile_deplibs"
- finalize_deplibs="$dir/$linklib $finalize_deplibs"
- else
- compile_deplibs="-l$name -L$dir $compile_deplibs"
- finalize_deplibs="-l$name -L$dir $finalize_deplibs"
- fi
- elif test yes = "$build_libtool_libs"; then
- # Not a shared library
- if test pass_all != "$deplibs_check_method"; then
- # We're trying link a shared library against a static one
- # but the system doesn't support it.
-
- # Just print a warning and add the library to dependency_libs so
- # that the program can be linked against the static library.
- echo
- $ECHO "*** Warning: This system cannot link to static lib archive $lib."
- echo "*** I have the capability to make that library automatically link in when"
- echo "*** you link to this library. But I can only do this if you have a"
- echo "*** shared version of the library, which you do not appear to have."
- if test yes = "$module"; then
- echo "*** But as you try to build a module library, libtool will still create "
- echo "*** a static module, that should work as long as the dlopening application"
- echo "*** is linked with the -dlopen flag to resolve symbols at runtime."
- if test -z "$global_symbol_pipe"; then
- echo
- echo "*** However, this would only work if libtool was able to extract symbol"
- echo "*** lists from a program, using 'nm' or equivalent, but libtool could"
- echo "*** not find such a program. So, this module is probably useless."
- echo "*** 'nm' from GNU binutils and a full rebuild may help."
- fi
- if test no = "$build_old_libs"; then
- build_libtool_libs=module
- build_old_libs=yes
- else
- build_libtool_libs=no
- fi
- fi
- else
- deplibs="$dir/$old_library $deplibs"
- link_static=yes
- fi
- fi # link shared/static library?
-
- if test lib = "$linkmode"; then
- if test -n "$dependency_libs" &&
- { test yes != "$hardcode_into_libs" ||
- test yes = "$build_old_libs" ||
- test yes = "$link_static"; }; then
- # Extract -R from dependency_libs
- temp_deplibs=
- for libdir in $dependency_libs; do
- case $libdir in
- -R*) func_stripname '-R' '' "$libdir"
- temp_xrpath=$func_stripname_result
- case " $xrpath " in
- *" $temp_xrpath "*) ;;
- *) func_append xrpath " $temp_xrpath";;
- esac;;
- *) func_append temp_deplibs " $libdir";;
- esac
- done
- dependency_libs=$temp_deplibs
- fi
-
- func_append newlib_search_path " $absdir"
- # Link against this library
- test no = "$link_static" && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
- # ... and its dependency_libs
- tmp_libs=
- for deplib in $dependency_libs; do
- newdependency_libs="$deplib $newdependency_libs"
- case $deplib in
- -L*) func_stripname '-L' '' "$deplib"
- func_resolve_sysroot "$func_stripname_result";;
- *) func_resolve_sysroot "$deplib" ;;
- esac
- if $opt_preserve_dup_deps; then
- case "$tmp_libs " in
- *" $func_resolve_sysroot_result "*)
- func_append specialdeplibs " $func_resolve_sysroot_result" ;;
- esac
- fi
- func_append tmp_libs " $func_resolve_sysroot_result"
- done
-
- if test no != "$link_all_deplibs"; then
- # Add the search paths of all dependency libraries
- for deplib in $dependency_libs; do
- path=
- case $deplib in
- -L*) path=$deplib ;;
- *.la)
- func_resolve_sysroot "$deplib"
- deplib=$func_resolve_sysroot_result
- func_dirname "$deplib" "" "."
- dir=$func_dirname_result
- # We need an absolute path.
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) absdir=$dir ;;
- *)
- absdir=`cd "$dir" && pwd`
- if test -z "$absdir"; then
- func_warning "cannot determine absolute directory name of '$dir'"
- absdir=$dir
- fi
- ;;
- esac
- if $GREP "^installed=no" $deplib > /dev/null; then
- case $host in
- *-*-darwin*)
- depdepl=
- eval deplibrary_names=`$SED -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
- if test -n "$deplibrary_names"; then
- for tmp in $deplibrary_names; do
- depdepl=$tmp
- done
- if test -f "$absdir/$objdir/$depdepl"; then
- depdepl=$absdir/$objdir/$depdepl
- darwin_install_name=`$OTOOL -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
- if test -z "$darwin_install_name"; then
- darwin_install_name=`$OTOOL64 -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
- fi
- func_append compiler_flags " $wl-dylib_file $wl$darwin_install_name:$depdepl"
- func_append linker_flags " -dylib_file $darwin_install_name:$depdepl"
- path=
- fi
- fi
- ;;
- *)
- path=-L$absdir/$objdir
- ;;
- esac
- else
- eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
- test -z "$libdir" && \
- func_fatal_error "'$deplib' is not a valid libtool archive"
- test "$absdir" != "$libdir" && \
- func_warning "'$deplib' seems to be moved"
-
- path=-L$absdir
- fi
- ;;
- esac
- case " $deplibs " in
- *" $path "*) ;;
- *) deplibs="$path $deplibs" ;;
- esac
- done
- fi # link_all_deplibs != no
- fi # linkmode = lib
- done # for deplib in $libs
- if test link = "$pass"; then
- if test prog = "$linkmode"; then
- compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
- finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
- else
- compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
- fi
- fi
- dependency_libs=$newdependency_libs
- if test dlpreopen = "$pass"; then
- # Link the dlpreopened libraries before other libraries
- for deplib in $save_deplibs; do
- deplibs="$deplib $deplibs"
- done
- fi
- if test dlopen != "$pass"; then
- test conv = "$pass" || {
- # Make sure lib_search_path contains only unique directories.
- lib_search_path=
- for dir in $newlib_search_path; do
- case "$lib_search_path " in
- *" $dir "*) ;;
- *) func_append lib_search_path " $dir" ;;
- esac
- done
- newlib_search_path=
- }
-
- if test prog,link = "$linkmode,$pass"; then
- vars="compile_deplibs finalize_deplibs"
- else
- vars=deplibs
- fi
- for var in $vars dependency_libs; do
- # Add libraries to $var in reverse order
- eval tmp_libs=\"\$$var\"
- new_libs=
- for deplib in $tmp_libs; do
- # FIXME: Pedantically, this is the right thing to do, so
- # that some nasty dependency loop isn't accidentally
- # broken:
- #new_libs="$deplib $new_libs"
- # Pragmatically, this seems to cause very few problems in
- # practice:
- case $deplib in
- -L*) new_libs="$deplib $new_libs" ;;
- -R*) ;;
- *)
- # And here is the reason: when a library appears more
- # than once as an explicit dependence of a library, or
- # is implicitly linked in more than once by the
- # compiler, it is considered special, and multiple
- # occurrences thereof are not removed. Compare this
- # with having the same library being listed as a
- # dependency of multiple other libraries: in this case,
- # we know (pedantically, we assume) the library does not
- # need to be listed more than once, so we keep only the
- # last copy. This is not always right, but it is rare
- # enough that we require users that really mean to play
- # such unportable linking tricks to link the library
- # using -Wl,-lname, so that libtool does not consider it
- # for duplicate removal.
- case " $specialdeplibs " in
- *" $deplib "*) new_libs="$deplib $new_libs" ;;
- *)
- case " $new_libs " in
- *" $deplib "*) ;;
- *) new_libs="$deplib $new_libs" ;;
- esac
- ;;
- esac
- ;;
- esac
- done
- tmp_libs=
- for deplib in $new_libs; do
- case $deplib in
- -L*)
- case " $tmp_libs " in
- *" $deplib "*) ;;
- *) func_append tmp_libs " $deplib" ;;
- esac
- ;;
- *) func_append tmp_libs " $deplib" ;;
- esac
- done
- eval $var=\"$tmp_libs\"
- done # for var
- fi
-
- # Add Sun CC postdeps if required:
- test CXX = "$tagname" && {
- case $host_os in
- linux*)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*) # Sun C++ 5.9
- func_suncc_cstd_abi
-
- if test no != "$suncc_use_cstd_abi"; then
- func_append postdeps ' -library=Cstd -library=Crun'
- fi
- ;;
- esac
- ;;
-
- solaris*)
- func_cc_basename "$CC"
- case $func_cc_basename_result in
- CC* | sunCC*)
- func_suncc_cstd_abi
-
- if test no != "$suncc_use_cstd_abi"; then
- func_append postdeps ' -library=Cstd -library=Crun'
- fi
- ;;
- esac
- ;;
- esac
- }
-
- # Last step: remove runtime libs from dependency_libs
- # (they stay in deplibs)
- tmp_libs=
- for i in $dependency_libs; do
- case " $predeps $postdeps $compiler_lib_search_path " in
- *" $i "*)
- i=
- ;;
- esac
- if test -n "$i"; then
- func_append tmp_libs " $i"
- fi
- done
- dependency_libs=$tmp_libs
- done # for pass
- if test prog = "$linkmode"; then
- dlfiles=$newdlfiles
- fi
- if test prog = "$linkmode" || test lib = "$linkmode"; then
- dlprefiles=$newdlprefiles
- fi
-
- case $linkmode in
- oldlib)
- if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
- func_warning "'-dlopen' is ignored for archives"
- fi
-
- case " $deplibs" in
- *\ -l* | *\ -L*)
- func_warning "'-l' and '-L' are ignored for archives" ;;
- esac
-
- test -n "$rpath" && \
- func_warning "'-rpath' is ignored for archives"
-
- test -n "$xrpath" && \
- func_warning "'-R' is ignored for archives"
-
- test -n "$vinfo" && \
- func_warning "'-version-info/-version-number' is ignored for archives"
-
- test -n "$release" && \
- func_warning "'-release' is ignored for archives"
-
- test -n "$export_symbols$export_symbols_regex" && \
- func_warning "'-export-symbols' is ignored for archives"
-
- # Now set the variables for building old libraries.
- build_libtool_libs=no
- oldlibs=$output
- func_append objs "$old_deplibs"
- ;;
-
- lib)
- # Make sure we only generate libraries of the form 'libNAME.la'.
- case $outputname in
- lib*)
- func_stripname 'lib' '.la' "$outputname"
- name=$func_stripname_result
- eval shared_ext=\"$shrext_cmds\"
- eval libname=\"$libname_spec\"
- ;;
- *)
- test no = "$module" \
- && func_fatal_help "libtool library '$output' must begin with 'lib'"
-
- if test no != "$need_lib_prefix"; then
- # Add the "lib" prefix for modules if required
- func_stripname '' '.la' "$outputname"
- name=$func_stripname_result
- eval shared_ext=\"$shrext_cmds\"
- eval libname=\"$libname_spec\"
- else
- func_stripname '' '.la' "$outputname"
- libname=$func_stripname_result
- fi
- ;;
- esac
-
- if test -n "$objs"; then
- if test pass_all != "$deplibs_check_method"; then
- func_fatal_error "cannot build libtool library '$output' from non-libtool objects on this host:$objs"
- else
- echo
- $ECHO "*** Warning: Linking the shared library $output against the non-libtool"
- $ECHO "*** objects $objs is not portable!"
- func_append libobjs " $objs"
- fi
- fi
-
- test no = "$dlself" \
- || func_warning "'-dlopen self' is ignored for libtool libraries"
-
- set dummy $rpath
- shift
- test 1 -lt "$#" \
- && func_warning "ignoring multiple '-rpath's for a libtool library"
-
- install_libdir=$1
-
- oldlibs=
- if test -z "$rpath"; then
- if test yes = "$build_libtool_libs"; then
- # Building a libtool convenience library.
- # Some compilers have problems with a '.al' extension so
- # convenience libraries should have the same extension an
- # archive normally would.
- oldlibs="$output_objdir/$libname.$libext $oldlibs"
- build_libtool_libs=convenience
- build_old_libs=yes
- fi
-
- test -n "$vinfo" && \
- func_warning "'-version-info/-version-number' is ignored for convenience libraries"
-
- test -n "$release" && \
- func_warning "'-release' is ignored for convenience libraries"
- else
-
- # Parse the version information argument.
- save_ifs=$IFS; IFS=:
- set dummy $vinfo 0 0 0
- shift
- IFS=$save_ifs
-
- test -n "$7" && \
- func_fatal_help "too many parameters to '-version-info'"
-
- # convert absolute version numbers to libtool ages
- # this retains compatibility with .la files and attempts
- # to make the code below a bit more comprehensible
-
- case $vinfo_number in
- yes)
- number_major=$1
- number_minor=$2
- number_revision=$3
- #
- # There are really only two kinds -- those that
- # use the current revision as the major version
- # and those that subtract age and use age as
- # a minor version. But, then there is irix
- # that has an extra 1 added just for fun
- #
- case $version_type in
- # correct linux to gnu/linux during the next big refactor
- darwin|freebsd-elf|linux|osf|windows|none)
- func_arith $number_major + $number_minor
- current=$func_arith_result
- age=$number_minor
- revision=$number_revision
- ;;
- freebsd-aout|qnx|sunos)
- current=$number_major
- revision=$number_minor
- age=0
- ;;
- irix|nonstopux)
- func_arith $number_major + $number_minor
- current=$func_arith_result
- age=$number_minor
- revision=$number_minor
- lt_irix_increment=no
- ;;
- esac
- ;;
- no)
- current=$1
- revision=$2
- age=$3
- ;;
- esac
-
- # Check that each of the things are valid numbers.
- case $current in
- 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
- *)
- func_error "CURRENT '$current' must be a nonnegative integer"
- func_fatal_error "'$vinfo' is not valid version information"
- ;;
- esac
-
- case $revision in
- 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
- *)
- func_error "REVISION '$revision' must be a nonnegative integer"
- func_fatal_error "'$vinfo' is not valid version information"
- ;;
- esac
-
- case $age in
- 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
- *)
- func_error "AGE '$age' must be a nonnegative integer"
- func_fatal_error "'$vinfo' is not valid version information"
- ;;
- esac
-
- if test "$age" -gt "$current"; then
- func_error "AGE '$age' is greater than the current interface number '$current'"
- func_fatal_error "'$vinfo' is not valid version information"
- fi
-
- # Calculate the version variables.
- major=
- versuffix=
- verstring=
- case $version_type in
- none) ;;
-
- darwin)
- # Like Linux, but with the current version available in
- # verstring for coding it into the library header
- func_arith $current - $age
- major=.$func_arith_result
- versuffix=$major.$age.$revision
- # Darwin ld doesn't like 0 for these options...
- func_arith $current + 1
- minor_current=$func_arith_result
- xlcverstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision"
- verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
- # On Darwin other compilers
- case $CC in
- nagfor*)
- verstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision"
- ;;
- *)
- verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
- ;;
- esac
- ;;
-
- freebsd-aout)
- major=.$current
- versuffix=.$current.$revision
- ;;
-
- freebsd-elf)
- func_arith $current - $age
- major=.$func_arith_result
- versuffix=$major.$age.$revision
- ;;
-
- irix | nonstopux)
- if test no = "$lt_irix_increment"; then
- func_arith $current - $age
- else
- func_arith $current - $age + 1
- fi
- major=$func_arith_result
-
- case $version_type in
- nonstopux) verstring_prefix=nonstopux ;;
- *) verstring_prefix=sgi ;;
- esac
- verstring=$verstring_prefix$major.$revision
-
- # Add in all the interfaces that we are compatible with.
- loop=$revision
- while test 0 -ne "$loop"; do
- func_arith $revision - $loop
- iface=$func_arith_result
- func_arith $loop - 1
- loop=$func_arith_result
- verstring=$verstring_prefix$major.$iface:$verstring
- done
-
- # Before this point, $major must not contain '.'.
- major=.$major
- versuffix=$major.$revision
- ;;
-
- linux) # correct to gnu/linux during the next big refactor
- func_arith $current - $age
- major=.$func_arith_result
- versuffix=$major.$age.$revision
- ;;
-
- osf)
- func_arith $current - $age
- major=.$func_arith_result
- versuffix=.$current.$age.$revision
- verstring=$current.$age.$revision
-
- # Add in all the interfaces that we are compatible with.
- loop=$age
- while test 0 -ne "$loop"; do
- func_arith $current - $loop
- iface=$func_arith_result
- func_arith $loop - 1
- loop=$func_arith_result
- verstring=$verstring:$iface.0
- done
-
- # Make executables depend on our current version.
- func_append verstring ":$current.0"
- ;;
-
- qnx)
- major=.$current
- versuffix=.$current
- ;;
-
- sco)
- major=.$current
- versuffix=.$current
- ;;
-
- sunos)
- major=.$current
- versuffix=.$current.$revision
- ;;
-
- windows)
- # Use '-' rather than '.', since we only want one
- # extension on DOS 8.3 file systems.
- func_arith $current - $age
- major=$func_arith_result
- versuffix=-$major
- ;;
-
- *)
- func_fatal_configuration "unknown library version type '$version_type'"
- ;;
- esac
-
- # Clear the version info if we defaulted, and they specified a release.
- if test -z "$vinfo" && test -n "$release"; then
- major=
- case $version_type in
- darwin)
- # we can't check for "0.0" in archive_cmds due to quoting
- # problems, so we reset it completely
- verstring=
- ;;
- *)
- verstring=0.0
- ;;
- esac
- if test no = "$need_version"; then
- versuffix=
- else
- versuffix=.0.0
- fi
- fi
-
- # Remove version info from name if versioning should be avoided
- if test yes,no = "$avoid_version,$need_version"; then
- major=
- versuffix=
- verstring=
- fi
-
- # Check to see if the archive will have undefined symbols.
- if test yes = "$allow_undefined"; then
- if test unsupported = "$allow_undefined_flag"; then
- if test yes = "$build_old_libs"; then
- func_warning "undefined symbols not allowed in $host shared libraries; building static only"
- build_libtool_libs=no
- else
- func_fatal_error "can't build $host shared library unless -no-undefined is specified"
- fi
- fi
- else
- # Don't allow undefined symbols.
- allow_undefined_flag=$no_undefined_flag
- fi
-
- fi
-
- func_generate_dlsyms "$libname" "$libname" :
- func_append libobjs " $symfileobj"
- test " " = "$libobjs" && libobjs=
-
- if test relink != "$opt_mode"; then
- # Remove our outputs, but don't remove object files since they
- # may have been created when compiling PIC objects.
- removelist=
- tempremovelist=`$ECHO "$output_objdir/*"`
- for p in $tempremovelist; do
- case $p in
- *.$objext | *.gcno)
- ;;
- $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/$libname$release.*)
- if test -n "$precious_files_regex"; then
- if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1
- then
- continue
- fi
- fi
- func_append removelist " $p"
- ;;
- *) ;;
- esac
- done
- test -n "$removelist" && \
- func_show_eval "${RM}r \$removelist"
- fi
-
- # Now set the variables for building old libraries.
- if test yes = "$build_old_libs" && test convenience != "$build_libtool_libs"; then
- func_append oldlibs " $output_objdir/$libname.$libext"
-
- # Transform .lo files to .o files.
- oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; $lo2o" | $NL2SP`
- fi
-
- # Eliminate all temporary directories.
- #for path in $notinst_path; do
- # lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"`
- # deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"`
- # dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"`
- #done
-
- if test -n "$xrpath"; then
- # If the user specified any rpath flags, then add them.
- temp_xrpath=
- for libdir in $xrpath; do
- func_replace_sysroot "$libdir"
- func_append temp_xrpath " -R$func_replace_sysroot_result"
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) func_append finalize_rpath " $libdir" ;;
- esac
- done
- if test yes != "$hardcode_into_libs" || test yes = "$build_old_libs"; then
- dependency_libs="$temp_xrpath $dependency_libs"
- fi
- fi
-
- # Make sure dlfiles contains only unique files that won't be dlpreopened
- old_dlfiles=$dlfiles
- dlfiles=
- for lib in $old_dlfiles; do
- case " $dlprefiles $dlfiles " in
- *" $lib "*) ;;
- *) func_append dlfiles " $lib" ;;
- esac
- done
-
- # Make sure dlprefiles contains only unique files
- old_dlprefiles=$dlprefiles
- dlprefiles=
- for lib in $old_dlprefiles; do
- case "$dlprefiles " in
- *" $lib "*) ;;
- *) func_append dlprefiles " $lib" ;;
- esac
- done
-
- if test yes = "$build_libtool_libs"; then
- if test -n "$rpath"; then
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*)
- # these systems don't actually have a c library (as such)!
- ;;
- *-*-rhapsody* | *-*-darwin1.[012])
- # Rhapsody C library is in the System framework
- func_append deplibs " System.ltframework"
- ;;
- *-*-netbsd*)
- # Don't link with libc until the a.out ld.so is fixed.
- ;;
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
- # Do not include libc due to us having libc/libc_r.
- ;;
- *-*-sco3.2v5* | *-*-sco5v6*)
- # Causes problems with __ctype
- ;;
- *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
- # Compiler inserts libc in the correct place for threads to work
- ;;
- *)
- # Add libc to deplibs on all other systems if necessary.
- if test yes = "$build_libtool_need_lc"; then
- func_append deplibs " -lc"
- fi
- ;;
- esac
- fi
-
- # Transform deplibs into only deplibs that can be linked in shared.
- name_save=$name
- libname_save=$libname
- release_save=$release
- versuffix_save=$versuffix
- major_save=$major
- # I'm not sure if I'm treating the release correctly. I think
- # release should show up in the -l (ie -lgmp5) so we don't want to
- # add it in twice. Is that correct?
- release=
- versuffix=
- major=
- newdeplibs=
- droppeddeps=no
- case $deplibs_check_method in
- pass_all)
- # Don't check for shared/static. Everything works.
- # This might be a little naive. We might want to check
- # whether the library exists or not. But this is on
- # osf3 & osf4 and I'm not really sure... Just
- # implementing what was already the behavior.
- newdeplibs=$deplibs
- ;;
- test_compile)
- # This code stresses the "libraries are programs" paradigm to its
- # limits. Maybe even breaks it. We compile a program, linking it
- # against the deplibs as a proxy for the library. Then we can check
- # whether they linked in statically or dynamically with ldd.
- $opt_dry_run || $RM conftest.c
- cat > conftest.c <<EOF
- int main() { return 0; }
-EOF
- $opt_dry_run || $RM conftest
- if $LTCC $LTCFLAGS -o conftest conftest.c $deplibs; then
- ldd_output=`ldd conftest`
- for i in $deplibs; do
- case $i in
- -l*)
- func_stripname -l '' "$i"
- name=$func_stripname_result
- if test yes = "$allow_libtool_libs_with_static_runtimes"; then
- case " $predeps $postdeps " in
- *" $i "*)
- func_append newdeplibs " $i"
- i=
- ;;
- esac
- fi
- if test -n "$i"; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
- set dummy $deplib_matches; shift
- deplib_match=$1
- if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0; then
- func_append newdeplibs " $i"
- else
- droppeddeps=yes
- echo
- $ECHO "*** Warning: dynamic linker does not accept needed library $i."
- echo "*** I have the capability to make that library automatically link in when"
- echo "*** you link to this library. But I can only do this if you have a"
- echo "*** shared version of the library, which I believe you do not have"
- echo "*** because a test_compile did reveal that the linker did not use it for"
- echo "*** its dynamic dependency list that programs get resolved with at runtime."
- fi
- fi
- ;;
- *)
- func_append newdeplibs " $i"
- ;;
- esac
- done
- else
- # Error occurred in the first compile. Let's try to salvage
- # the situation: Compile a separate program for each library.
- for i in $deplibs; do
- case $i in
- -l*)
- func_stripname -l '' "$i"
- name=$func_stripname_result
- $opt_dry_run || $RM conftest
- if $LTCC $LTCFLAGS -o conftest conftest.c $i; then
- ldd_output=`ldd conftest`
- if test yes = "$allow_libtool_libs_with_static_runtimes"; then
- case " $predeps $postdeps " in
- *" $i "*)
- func_append newdeplibs " $i"
- i=
- ;;
- esac
- fi
- if test -n "$i"; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
- set dummy $deplib_matches; shift
- deplib_match=$1
- if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0; then
- func_append newdeplibs " $i"
- else
- droppeddeps=yes
- echo
- $ECHO "*** Warning: dynamic linker does not accept needed library $i."
- echo "*** I have the capability to make that library automatically link in when"
- echo "*** you link to this library. But I can only do this if you have a"
- echo "*** shared version of the library, which you do not appear to have"
- echo "*** because a test_compile did reveal that the linker did not use this one"
- echo "*** as a dynamic dependency that programs can get resolved with at runtime."
- fi
- fi
- else
- droppeddeps=yes
- echo
- $ECHO "*** Warning! Library $i is needed by this library but I was not able to"
- echo "*** make it link in! You will probably need to install it or some"
- echo "*** library that it depends on before this library will be fully"
- echo "*** functional. Installing it before continuing would be even better."
- fi
- ;;
- *)
- func_append newdeplibs " $i"
- ;;
- esac
- done
- fi
- ;;
- file_magic*)
- set dummy $deplibs_check_method; shift
- file_magic_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
- for a_deplib in $deplibs; do
- case $a_deplib in
- -l*)
- func_stripname -l '' "$a_deplib"
- name=$func_stripname_result
- if test yes = "$allow_libtool_libs_with_static_runtimes"; then
- case " $predeps $postdeps " in
- *" $a_deplib "*)
- func_append newdeplibs " $a_deplib"
- a_deplib=
- ;;
- esac
- fi
- if test -n "$a_deplib"; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- if test -n "$file_magic_glob"; then
- libnameglob=`func_echo_all "$libname" | $SED -e $file_magic_glob`
- else
- libnameglob=$libname
- fi
- test yes = "$want_nocaseglob" && nocaseglob=`shopt -p nocaseglob`
- for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
- if test yes = "$want_nocaseglob"; then
- shopt -s nocaseglob
- potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
- $nocaseglob
- else
- potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
- fi
- for potent_lib in $potential_libs; do
- # Follow soft links.
- if ls -lLd "$potent_lib" 2>/dev/null |
- $GREP " -> " >/dev/null; then
- continue
- fi
- # The statement above tries to avoid entering an
- # endless loop below, in case of cyclic links.
- # We might still enter an endless loop, since a link
- # loop can be closed while we follow links,
- # but so what?
- potlib=$potent_lib
- while test -h "$potlib" 2>/dev/null; do
- potliblink=`ls -ld $potlib | $SED 's/.* -> //'`
- case $potliblink in
- [\\/]* | [A-Za-z]:[\\/]*) potlib=$potliblink;;
- *) potlib=`$ECHO "$potlib" | $SED 's|[^/]*$||'`"$potliblink";;
- esac
- done
- if eval $file_magic_cmd \"\$potlib\" 2>/dev/null |
- $SED -e 10q |
- $EGREP "$file_magic_regex" > /dev/null; then
- func_append newdeplibs " $a_deplib"
- a_deplib=
- break 2
- fi
- done
- done
- fi
- if test -n "$a_deplib"; then
- droppeddeps=yes
- echo
- $ECHO "*** Warning: linker path does not have real file for library $a_deplib."
- echo "*** I have the capability to make that library automatically link in when"
- echo "*** you link to this library. But I can only do this if you have a"
- echo "*** shared version of the library, which you do not appear to have"
- echo "*** because I did check the linker path looking for a file starting"
- if test -z "$potlib"; then
- $ECHO "*** with $libname but no candidates were found. (...for file magic test)"
- else
- $ECHO "*** with $libname and none of the candidates passed a file format test"
- $ECHO "*** using a file magic. Last file checked: $potlib"
- fi
- fi
- ;;
- *)
- # Add a -L argument.
- func_append newdeplibs " $a_deplib"
- ;;
- esac
- done # Gone through all deplibs.
- ;;
- match_pattern*)
- set dummy $deplibs_check_method; shift
- match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
- for a_deplib in $deplibs; do
- case $a_deplib in
- -l*)
- func_stripname -l '' "$a_deplib"
- name=$func_stripname_result
- if test yes = "$allow_libtool_libs_with_static_runtimes"; then
- case " $predeps $postdeps " in
- *" $a_deplib "*)
- func_append newdeplibs " $a_deplib"
- a_deplib=
- ;;
- esac
- fi
- if test -n "$a_deplib"; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
- potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
- for potent_lib in $potential_libs; do
- potlib=$potent_lib # see symlink-check above in file_magic test
- if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \
- $EGREP "$match_pattern_regex" > /dev/null; then
- func_append newdeplibs " $a_deplib"
- a_deplib=
- break 2
- fi
- done
- done
- fi
- if test -n "$a_deplib"; then
- droppeddeps=yes
- echo
- $ECHO "*** Warning: linker path does not have real file for library $a_deplib."
- echo "*** I have the capability to make that library automatically link in when"
- echo "*** you link to this library. But I can only do this if you have a"
- echo "*** shared version of the library, which you do not appear to have"
- echo "*** because I did check the linker path looking for a file starting"
- if test -z "$potlib"; then
- $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)"
- else
- $ECHO "*** with $libname and none of the candidates passed a file format test"
- $ECHO "*** using a regex pattern. Last file checked: $potlib"
- fi
- fi
- ;;
- *)
- # Add a -L argument.
- func_append newdeplibs " $a_deplib"
- ;;
- esac
- done # Gone through all deplibs.
- ;;
- none | unknown | *)
- newdeplibs=
- tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'`
- if test yes = "$allow_libtool_libs_with_static_runtimes"; then
- for i in $predeps $postdeps; do
- # can't use Xsed below, because $i might contain '/'
- tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s|$i||"`
- done
- fi
- case $tmp_deplibs in
- *[!\ \ ]*)
- echo
- if test none = "$deplibs_check_method"; then
- echo "*** Warning: inter-library dependencies are not supported in this platform."
- else
- echo "*** Warning: inter-library dependencies are not known to be supported."
- fi
- echo "*** All declared inter-library dependencies are being dropped."
- droppeddeps=yes
- ;;
- esac
- ;;
- esac
- versuffix=$versuffix_save
- major=$major_save
- release=$release_save
- libname=$libname_save
- name=$name_save
-
- case $host in
- *-*-rhapsody* | *-*-darwin1.[012])
- # On Rhapsody replace the C library with the System framework
- newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'`
- ;;
- esac
-
- if test yes = "$droppeddeps"; then
- if test yes = "$module"; then
- echo
- echo "*** Warning: libtool could not satisfy all declared inter-library"
- $ECHO "*** dependencies of module $libname. Therefore, libtool will create"
- echo "*** a static module, that should work as long as the dlopening"
- echo "*** application is linked with the -dlopen flag."
- if test -z "$global_symbol_pipe"; then
- echo
- echo "*** However, this would only work if libtool was able to extract symbol"
- echo "*** lists from a program, using 'nm' or equivalent, but libtool could"
- echo "*** not find such a program. So, this module is probably useless."
- echo "*** 'nm' from GNU binutils and a full rebuild may help."
- fi
- if test no = "$build_old_libs"; then
- oldlibs=$output_objdir/$libname.$libext
- build_libtool_libs=module
- build_old_libs=yes
- else
- build_libtool_libs=no
- fi
- else
- echo "*** The inter-library dependencies that have been dropped here will be"
- echo "*** automatically added whenever a program is linked with this library"
- echo "*** or is declared to -dlopen it."
-
- if test no = "$allow_undefined"; then
- echo
- echo "*** Since this library must not contain undefined symbols,"
- echo "*** because either the platform does not support them or"
- echo "*** it was explicitly requested with -no-undefined,"
- echo "*** libtool will only create a static version of it."
- if test no = "$build_old_libs"; then
- oldlibs=$output_objdir/$libname.$libext
- build_libtool_libs=module
- build_old_libs=yes
- else
- build_libtool_libs=no
- fi
- fi
- fi
- fi
- # Done checking deplibs!
- deplibs=$newdeplibs
- fi
- # Time to change all our "foo.ltframework" stuff back to "-framework foo"
- case $host in
- *-*-darwin*)
- newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
- new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
- deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
- ;;
- esac
-
- # move library search paths that coincide with paths to not yet
- # installed libraries to the beginning of the library search list
- new_libs=
- for path in $notinst_path; do
- case " $new_libs " in
- *" -L$path/$objdir "*) ;;
- *)
- case " $deplibs " in
- *" -L$path/$objdir "*)
- func_append new_libs " -L$path/$objdir" ;;
- esac
- ;;
- esac
- done
- for deplib in $deplibs; do
- case $deplib in
- -L*)
- case " $new_libs " in
- *" $deplib "*) ;;
- *) func_append new_libs " $deplib" ;;
- esac
- ;;
- *) func_append new_libs " $deplib" ;;
- esac
- done
- deplibs=$new_libs
-
- # All the library-specific variables (install_libdir is set above).
- library_names=
- old_library=
- dlname=
-
- # Test again, we may have decided not to build it any more
- if test yes = "$build_libtool_libs"; then
- # Remove $wl instances when linking with ld.
- # FIXME: should test the right _cmds variable.
- case $archive_cmds in
- *\$LD\ *) wl= ;;
- esac
- if test yes = "$hardcode_into_libs"; then
- # Hardcode the library paths
- hardcode_libdirs=
- dep_rpath=
- rpath=$finalize_rpath
- test relink = "$opt_mode" || rpath=$compile_rpath$rpath
- for libdir in $rpath; do
- if test -n "$hardcode_libdir_flag_spec"; then
- if test -n "$hardcode_libdir_separator"; then
- func_replace_sysroot "$libdir"
- libdir=$func_replace_sysroot_result
- if test -z "$hardcode_libdirs"; then
- hardcode_libdirs=$libdir
- else
- # Just accumulate the unique libdirs.
- case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
- *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
- ;;
- *)
- func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
- ;;
- esac
- fi
- else
- eval flag=\"$hardcode_libdir_flag_spec\"
- func_append dep_rpath " $flag"
- fi
- elif test -n "$runpath_var"; then
- case "$perm_rpath " in
- *" $libdir "*) ;;
- *) func_append perm_rpath " $libdir" ;;
- esac
- fi
- done
- # Substitute the hardcoded libdirs into the rpath.
- if test -n "$hardcode_libdir_separator" &&
- test -n "$hardcode_libdirs"; then
- libdir=$hardcode_libdirs
- eval "dep_rpath=\"$hardcode_libdir_flag_spec\""
- fi
- if test -n "$runpath_var" && test -n "$perm_rpath"; then
- # We should set the runpath_var.
- rpath=
- for dir in $perm_rpath; do
- func_append rpath "$dir:"
- done
- eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var"
- fi
- test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
- fi
-
- shlibpath=$finalize_shlibpath
- test relink = "$opt_mode" || shlibpath=$compile_shlibpath$shlibpath
- if test -n "$shlibpath"; then
- eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
- fi
-
- # Get the real and link names of the library.
- eval shared_ext=\"$shrext_cmds\"
- eval library_names=\"$library_names_spec\"
- set dummy $library_names
- shift
- realname=$1
- shift
-
- if test -n "$soname_spec"; then
- eval soname=\"$soname_spec\"
- else
- soname=$realname
- fi
- if test -z "$dlname"; then
- dlname=$soname
- fi
-
- lib=$output_objdir/$realname
- linknames=
- for link
- do
- func_append linknames " $link"
- done
-
- # Use standard objects if they are pic
- test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP`
- test "X$libobjs" = "X " && libobjs=
-
- delfiles=
- if test -n "$export_symbols" && test -n "$include_expsyms"; then
- $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp"
- export_symbols=$output_objdir/$libname.uexp
- func_append delfiles " $export_symbols"
- fi
-
- orig_export_symbols=
- case $host_os in
- cygwin* | mingw* | cegcc*)
- if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
- # exporting using user supplied symfile
- func_dll_def_p "$export_symbols" || {
- # and it's NOT already a .def file. Must figure out
- # which of the given symbols are data symbols and tag
- # them as such. So, trigger use of export_symbols_cmds.
- # export_symbols gets reassigned inside the "prepare
- # the list of exported symbols" if statement, so the
- # include_expsyms logic still works.
- orig_export_symbols=$export_symbols
- export_symbols=
- always_export_symbols=yes
- }
- fi
- ;;
- esac
-
- # Prepare the list of exported symbols
- if test -z "$export_symbols"; then
- if test yes = "$always_export_symbols" || test -n "$export_symbols_regex"; then
- func_verbose "generating symbol list for '$libname.la'"
- export_symbols=$output_objdir/$libname.exp
- $opt_dry_run || $RM $export_symbols
- cmds=$export_symbols_cmds
- save_ifs=$IFS; IFS='~'
- for cmd1 in $cmds; do
- IFS=$save_ifs
- # Take the normal branch if the nm_file_list_spec branch
- # doesn't work or if tool conversion is not needed.
- case $nm_file_list_spec~$to_tool_file_cmd in
- *~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*)
- try_normal_branch=yes
- eval cmd=\"$cmd1\"
- func_len " $cmd"
- len=$func_len_result
- ;;
- *)
- try_normal_branch=no
- ;;
- esac
- if test yes = "$try_normal_branch" \
- && { test "$len" -lt "$max_cmd_len" \
- || test "$max_cmd_len" -le -1; }
- then
- func_show_eval "$cmd" 'exit $?'
- skipped_export=false
- elif test -n "$nm_file_list_spec"; then
- func_basename "$output"
- output_la=$func_basename_result
- save_libobjs=$libobjs
- save_output=$output
- output=$output_objdir/$output_la.nm
- func_to_tool_file "$output"
- libobjs=$nm_file_list_spec$func_to_tool_file_result
- func_append delfiles " $output"
- func_verbose "creating $NM input file list: $output"
- for obj in $save_libobjs; do
- func_to_tool_file "$obj"
- $ECHO "$func_to_tool_file_result"
- done > "$output"
- eval cmd=\"$cmd1\"
- func_show_eval "$cmd" 'exit $?'
- output=$save_output
- libobjs=$save_libobjs
- skipped_export=false
- else
- # The command line is too long to execute in one step.
- func_verbose "using reloadable object file for export list..."
- skipped_export=:
- # Break out early, otherwise skipped_export may be
- # set to false by a later but shorter cmd.
- break
- fi
- done
- IFS=$save_ifs
- if test -n "$export_symbols_regex" && test : != "$skipped_export"; then
- func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
- func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
- fi
- fi
- fi
-
- if test -n "$export_symbols" && test -n "$include_expsyms"; then
- tmp_export_symbols=$export_symbols
- test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols
- $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
- fi
-
- if test : != "$skipped_export" && test -n "$orig_export_symbols"; then
- # The given exports_symbols file has to be filtered, so filter it.
- func_verbose "filter symbol list for '$libname.la' to tag DATA exports"
- # FIXME: $output_objdir/$libname.filter potentially contains lots of
- # 's' commands, which not all seds can handle. GNU sed should be fine
- # though. Also, the filter scales superlinearly with the number of
- # global variables. join(1) would be nice here, but unfortunately
- # isn't a blessed tool.
- $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
- func_append delfiles " $export_symbols $output_objdir/$libname.filter"
- export_symbols=$output_objdir/$libname.def
- $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
- fi
-
- tmp_deplibs=
- for test_deplib in $deplibs; do
- case " $convenience " in
- *" $test_deplib "*) ;;
- *)
- func_append tmp_deplibs " $test_deplib"
- ;;
- esac
- done
- deplibs=$tmp_deplibs
-
- if test -n "$convenience"; then
- if test -n "$whole_archive_flag_spec" &&
- test yes = "$compiler_needs_object" &&
- test -z "$libobjs"; then
- # extract the archives, so we have objects to list.
- # TODO: could optimize this to just extract one archive.
- whole_archive_flag_spec=
- fi
- if test -n "$whole_archive_flag_spec"; then
- save_libobjs=$libobjs
- eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
- test "X$libobjs" = "X " && libobjs=
- else
- gentop=$output_objdir/${outputname}x
- func_append generated " $gentop"
-
- func_extract_archives $gentop $convenience
- func_append libobjs " $func_extract_archives_result"
- test "X$libobjs" = "X " && libobjs=
- fi
- fi
-
- if test yes = "$thread_safe" && test -n "$thread_safe_flag_spec"; then
- eval flag=\"$thread_safe_flag_spec\"
- func_append linker_flags " $flag"
- fi
-
- # Make a backup of the uninstalled library when relinking
- if test relink = "$opt_mode"; then
- $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $?
- fi
-
- # Do each of the archive commands.
- if test yes = "$module" && test -n "$module_cmds"; then
- if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
- eval test_cmds=\"$module_expsym_cmds\"
- cmds=$module_expsym_cmds
- else
- eval test_cmds=\"$module_cmds\"
- cmds=$module_cmds
- fi
- else
- if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
- eval test_cmds=\"$archive_expsym_cmds\"
- cmds=$archive_expsym_cmds
- else
- eval test_cmds=\"$archive_cmds\"
- cmds=$archive_cmds
- fi
- fi
-
- if test : != "$skipped_export" &&
- func_len " $test_cmds" &&
- len=$func_len_result &&
- test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
- :
- else
- # The command line is too long to link in one step, link piecewise
- # or, if using GNU ld and skipped_export is not :, use a linker
- # script.
-
- # Save the value of $output and $libobjs because we want to
- # use them later. If we have whole_archive_flag_spec, we
- # want to use save_libobjs as it was before
- # whole_archive_flag_spec was expanded, because we can't
- # assume the linker understands whole_archive_flag_spec.
- # This may have to be revisited, in case too many
- # convenience libraries get linked in and end up exceeding
- # the spec.
- if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then
- save_libobjs=$libobjs
- fi
- save_output=$output
- func_basename "$output"
- output_la=$func_basename_result
-
- # Clear the reloadable object creation command queue and
- # initialize k to one.
- test_cmds=
- concat_cmds=
- objlist=
- last_robj=
- k=1
-
- if test -n "$save_libobjs" && test : != "$skipped_export" && test yes = "$with_gnu_ld"; then
- output=$output_objdir/$output_la.lnkscript
- func_verbose "creating GNU ld script: $output"
- echo 'INPUT (' > $output
- for obj in $save_libobjs
- do
- func_to_tool_file "$obj"
- $ECHO "$func_to_tool_file_result" >> $output
- done
- echo ')' >> $output
- func_append delfiles " $output"
- func_to_tool_file "$output"
- output=$func_to_tool_file_result
- elif test -n "$save_libobjs" && test : != "$skipped_export" && test -n "$file_list_spec"; then
- output=$output_objdir/$output_la.lnk
- func_verbose "creating linker input file list: $output"
- : > $output
- set x $save_libobjs
- shift
- firstobj=
- if test yes = "$compiler_needs_object"; then
- firstobj="$1 "
- shift
- fi
- for obj
- do
- func_to_tool_file "$obj"
- $ECHO "$func_to_tool_file_result" >> $output
- done
- func_append delfiles " $output"
- func_to_tool_file "$output"
- output=$firstobj\"$file_list_spec$func_to_tool_file_result\"
- else
- if test -n "$save_libobjs"; then
- func_verbose "creating reloadable object files..."
- output=$output_objdir/$output_la-$k.$objext
- eval test_cmds=\"$reload_cmds\"
- func_len " $test_cmds"
- len0=$func_len_result
- len=$len0
-
- # Loop over the list of objects to be linked.
- for obj in $save_libobjs
- do
- func_len " $obj"
- func_arith $len + $func_len_result
- len=$func_arith_result
- if test -z "$objlist" ||
- test "$len" -lt "$max_cmd_len"; then
- func_append objlist " $obj"
- else
- # The command $test_cmds is almost too long, add a
- # command to the queue.
- if test 1 -eq "$k"; then
- # The first file doesn't have a previous command to add.
- reload_objs=$objlist
- eval concat_cmds=\"$reload_cmds\"
- else
- # All subsequent reloadable object files will link in
- # the last one created.
- reload_objs="$objlist $last_robj"
- eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\"
- fi
- last_robj=$output_objdir/$output_la-$k.$objext
- func_arith $k + 1
- k=$func_arith_result
- output=$output_objdir/$output_la-$k.$objext
- objlist=" $obj"
- func_len " $last_robj"
- func_arith $len0 + $func_len_result
- len=$func_arith_result
- fi
- done
- # Handle the remaining objects by creating one last
- # reloadable object file. All subsequent reloadable object
- # files will link in the last one created.
- test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- reload_objs="$objlist $last_robj"
- eval concat_cmds=\"\$concat_cmds$reload_cmds\"
- if test -n "$last_robj"; then
- eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
- fi
- func_append delfiles " $output"
-
- else
- output=
- fi
-
- ${skipped_export-false} && {
- func_verbose "generating symbol list for '$libname.la'"
- export_symbols=$output_objdir/$libname.exp
- $opt_dry_run || $RM $export_symbols
- libobjs=$output
- # Append the command to create the export file.
- test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\"
- if test -n "$last_robj"; then
- eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
- fi
- }
-
- test -n "$save_libobjs" &&
- func_verbose "creating a temporary reloadable object file: $output"
-
- # Loop through the commands generated above and execute them.
- save_ifs=$IFS; IFS='~'
- for cmd in $concat_cmds; do
- IFS=$save_ifs
- $opt_quiet || {
- func_quote_for_expand "$cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
- $opt_dry_run || eval "$cmd" || {
- lt_exit=$?
-
- # Restore the uninstalled library and exit
- if test relink = "$opt_mode"; then
- ( cd "$output_objdir" && \
- $RM "${realname}T" && \
- $MV "${realname}U" "$realname" )
- fi
-
- exit $lt_exit
- }
- done
- IFS=$save_ifs
-
- if test -n "$export_symbols_regex" && ${skipped_export-false}; then
- func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
- func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
- fi
- fi
-
- ${skipped_export-false} && {
- if test -n "$export_symbols" && test -n "$include_expsyms"; then
- tmp_export_symbols=$export_symbols
- test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols
- $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
- fi
-
- if test -n "$orig_export_symbols"; then
- # The given exports_symbols file has to be filtered, so filter it.
- func_verbose "filter symbol list for '$libname.la' to tag DATA exports"
- # FIXME: $output_objdir/$libname.filter potentially contains lots of
- # 's' commands, which not all seds can handle. GNU sed should be fine
- # though. Also, the filter scales superlinearly with the number of
- # global variables. join(1) would be nice here, but unfortunately
- # isn't a blessed tool.
- $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
- func_append delfiles " $export_symbols $output_objdir/$libname.filter"
- export_symbols=$output_objdir/$libname.def
- $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
- fi
- }
-
- libobjs=$output
- # Restore the value of output.
- output=$save_output
-
- if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then
- eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
- test "X$libobjs" = "X " && libobjs=
- fi
- # Expand the library linking commands again to reset the
- # value of $libobjs for piecewise linking.
-
- # Do each of the archive commands.
- if test yes = "$module" && test -n "$module_cmds"; then
- if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
- cmds=$module_expsym_cmds
- else
- cmds=$module_cmds
- fi
- else
- if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
- cmds=$archive_expsym_cmds
- else
- cmds=$archive_cmds
- fi
- fi
- fi
-
- if test -n "$delfiles"; then
- # Append the command to remove temporary files to $cmds.
- eval cmds=\"\$cmds~\$RM $delfiles\"
- fi
-
- # Add any objects from preloaded convenience libraries
- if test -n "$dlprefiles"; then
- gentop=$output_objdir/${outputname}x
- func_append generated " $gentop"
-
- func_extract_archives $gentop $dlprefiles
- func_append libobjs " $func_extract_archives_result"
- test "X$libobjs" = "X " && libobjs=
- fi
-
- save_ifs=$IFS; IFS='~'
- for cmd in $cmds; do
- IFS=$sp$nl
- eval cmd=\"$cmd\"
- IFS=$save_ifs
- $opt_quiet || {
- func_quote_for_expand "$cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
- $opt_dry_run || eval "$cmd" || {
- lt_exit=$?
-
- # Restore the uninstalled library and exit
- if test relink = "$opt_mode"; then
- ( cd "$output_objdir" && \
- $RM "${realname}T" && \
- $MV "${realname}U" "$realname" )
- fi
-
- exit $lt_exit
- }
- done
- IFS=$save_ifs
-
- # Restore the uninstalled library and exit
- if test relink = "$opt_mode"; then
- $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $?
-
- if test -n "$convenience"; then
- if test -z "$whole_archive_flag_spec"; then
- func_show_eval '${RM}r "$gentop"'
- fi
- fi
-
- exit $EXIT_SUCCESS
- fi
-
- # Create links to the real library.
- for linkname in $linknames; do
- if test "$realname" != "$linkname"; then
- func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?'
- fi
- done
-
- # If -module or -export-dynamic was specified, set the dlname.
- if test yes = "$module" || test yes = "$export_dynamic"; then
- # On all known operating systems, these are identical.
- dlname=$soname
- fi
- fi
- ;;
-
- obj)
- if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
- func_warning "'-dlopen' is ignored for objects"
- fi
-
- case " $deplibs" in
- *\ -l* | *\ -L*)
- func_warning "'-l' and '-L' are ignored for objects" ;;
- esac
-
- test -n "$rpath" && \
- func_warning "'-rpath' is ignored for objects"
-
- test -n "$xrpath" && \
- func_warning "'-R' is ignored for objects"
-
- test -n "$vinfo" && \
- func_warning "'-version-info' is ignored for objects"
-
- test -n "$release" && \
- func_warning "'-release' is ignored for objects"
-
- case $output in
- *.lo)
- test -n "$objs$old_deplibs" && \
- func_fatal_error "cannot build library object '$output' from non-libtool objects"
-
- libobj=$output
- func_lo2o "$libobj"
- obj=$func_lo2o_result
- ;;
- *)
- libobj=
- obj=$output
- ;;
- esac
-
- # Delete the old objects.
- $opt_dry_run || $RM $obj $libobj
-
- # Objects from convenience libraries. This assumes
- # single-version convenience libraries. Whenever we create
- # different ones for PIC/non-PIC, this we'll have to duplicate
- # the extraction.
- reload_conv_objs=
- gentop=
- # if reload_cmds runs $LD directly, get rid of -Wl from
- # whole_archive_flag_spec and hope we can get by with turning comma
- # into space.
- case $reload_cmds in
- *\$LD[\ \$]*) wl= ;;
- esac
- if test -n "$convenience"; then
- if test -n "$whole_archive_flag_spec"; then
- eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\"
- test -n "$wl" || tmp_whole_archive_flags=`$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'`
- reload_conv_objs=$reload_objs\ $tmp_whole_archive_flags
- else
- gentop=$output_objdir/${obj}x
- func_append generated " $gentop"
-
- func_extract_archives $gentop $convenience
- reload_conv_objs="$reload_objs $func_extract_archives_result"
- fi
- fi
-
- # If we're not building shared, we need to use non_pic_objs
- test yes = "$build_libtool_libs" || libobjs=$non_pic_objects
-
- # Create the old-style object.
- reload_objs=$objs$old_deplibs' '`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; /\.lib$/d; $lo2o" | $NL2SP`' '$reload_conv_objs
-
- output=$obj
- func_execute_cmds "$reload_cmds" 'exit $?'
-
- # Exit if we aren't doing a library object file.
- if test -z "$libobj"; then
- if test -n "$gentop"; then
- func_show_eval '${RM}r "$gentop"'
- fi
-
- exit $EXIT_SUCCESS
- fi
-
- test yes = "$build_libtool_libs" || {
- if test -n "$gentop"; then
- func_show_eval '${RM}r "$gentop"'
- fi
-
- # Create an invalid libtool object if no PIC, so that we don't
- # accidentally link it into a program.
- # $show "echo timestamp > $libobj"
- # $opt_dry_run || eval "echo timestamp > $libobj" || exit $?
- exit $EXIT_SUCCESS
- }
-
- if test -n "$pic_flag" || test default != "$pic_mode"; then
- # Only do commands if we really have different PIC objects.
- reload_objs="$libobjs $reload_conv_objs"
- output=$libobj
- func_execute_cmds "$reload_cmds" 'exit $?'
- fi
-
- if test -n "$gentop"; then
- func_show_eval '${RM}r "$gentop"'
- fi
-
- exit $EXIT_SUCCESS
- ;;
-
- prog)
- case $host in
- *cygwin*) func_stripname '' '.exe' "$output"
- output=$func_stripname_result.exe;;
- esac
- test -n "$vinfo" && \
- func_warning "'-version-info' is ignored for programs"
-
- test -n "$release" && \
- func_warning "'-release' is ignored for programs"
-
- $preload \
- && test unknown,unknown,unknown = "$dlopen_support,$dlopen_self,$dlopen_self_static" \
- && func_warning "'LT_INIT([dlopen])' not used. Assuming no dlopen support."
-
- case $host in
- *-*-rhapsody* | *-*-darwin1.[012])
- # On Rhapsody replace the C library is the System framework
- compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'`
- finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'`
- ;;
- esac
-
- case $host in
- *-*-darwin*)
- # Don't allow lazy linking, it breaks C++ global constructors
- # But is supposedly fixed on 10.4 or later (yay!).
- if test CXX = "$tagname"; then
- case ${MACOSX_DEPLOYMENT_TARGET-10.0} in
- 10.[0123])
- func_append compile_command " $wl-bind_at_load"
- func_append finalize_command " $wl-bind_at_load"
- ;;
- esac
- fi
- # Time to change all our "foo.ltframework" stuff back to "-framework foo"
- compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
- finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
- ;;
- esac
-
-
- # move library search paths that coincide with paths to not yet
- # installed libraries to the beginning of the library search list
- new_libs=
- for path in $notinst_path; do
- case " $new_libs " in
- *" -L$path/$objdir "*) ;;
- *)
- case " $compile_deplibs " in
- *" -L$path/$objdir "*)
- func_append new_libs " -L$path/$objdir" ;;
- esac
- ;;
- esac
- done
- for deplib in $compile_deplibs; do
- case $deplib in
- -L*)
- case " $new_libs " in
- *" $deplib "*) ;;
- *) func_append new_libs " $deplib" ;;
- esac
- ;;
- *) func_append new_libs " $deplib" ;;
- esac
- done
- compile_deplibs=$new_libs
-
-
- func_append compile_command " $compile_deplibs"
- func_append finalize_command " $finalize_deplibs"
-
- if test -n "$rpath$xrpath"; then
- # If the user specified any rpath flags, then add them.
- for libdir in $rpath $xrpath; do
- # This is the magic to use -rpath.
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) func_append finalize_rpath " $libdir" ;;
- esac
- done
- fi
-
- # Now hardcode the library paths
- rpath=
- hardcode_libdirs=
- for libdir in $compile_rpath $finalize_rpath; do
- if test -n "$hardcode_libdir_flag_spec"; then
- if test -n "$hardcode_libdir_separator"; then
- if test -z "$hardcode_libdirs"; then
- hardcode_libdirs=$libdir
- else
- # Just accumulate the unique libdirs.
- case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
- *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
- ;;
- *)
- func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
- ;;
- esac
- fi
- else
- eval flag=\"$hardcode_libdir_flag_spec\"
- func_append rpath " $flag"
- fi
- elif test -n "$runpath_var"; then
- case "$perm_rpath " in
- *" $libdir "*) ;;
- *) func_append perm_rpath " $libdir" ;;
- esac
- fi
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- testbindir=`$ECHO "$libdir" | $SED -e 's*/lib$*/bin*'`
- case :$dllsearchpath: in
- *":$libdir:"*) ;;
- ::) dllsearchpath=$libdir;;
- *) func_append dllsearchpath ":$libdir";;
- esac
- case :$dllsearchpath: in
- *":$testbindir:"*) ;;
- ::) dllsearchpath=$testbindir;;
- *) func_append dllsearchpath ":$testbindir";;
- esac
- ;;
- esac
- done
- # Substitute the hardcoded libdirs into the rpath.
- if test -n "$hardcode_libdir_separator" &&
- test -n "$hardcode_libdirs"; then
- libdir=$hardcode_libdirs
- eval rpath=\" $hardcode_libdir_flag_spec\"
- fi
- compile_rpath=$rpath
-
- rpath=
- hardcode_libdirs=
- for libdir in $finalize_rpath; do
- if test -n "$hardcode_libdir_flag_spec"; then
- if test -n "$hardcode_libdir_separator"; then
- if test -z "$hardcode_libdirs"; then
- hardcode_libdirs=$libdir
- else
- # Just accumulate the unique libdirs.
- case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
- *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
- ;;
- *)
- func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
- ;;
- esac
- fi
- else
- eval flag=\"$hardcode_libdir_flag_spec\"
- func_append rpath " $flag"
- fi
- elif test -n "$runpath_var"; then
- case "$finalize_perm_rpath " in
- *" $libdir "*) ;;
- *) func_append finalize_perm_rpath " $libdir" ;;
- esac
- fi
- done
- # Substitute the hardcoded libdirs into the rpath.
- if test -n "$hardcode_libdir_separator" &&
- test -n "$hardcode_libdirs"; then
- libdir=$hardcode_libdirs
- eval rpath=\" $hardcode_libdir_flag_spec\"
- fi
- finalize_rpath=$rpath
-
- if test -n "$libobjs" && test yes = "$build_old_libs"; then
- # Transform all the library objects into standard objects.
- compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
- finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
- fi
-
- func_generate_dlsyms "$outputname" "@PROGRAM@" false
-
- # template prelinking step
- if test -n "$prelink_cmds"; then
- func_execute_cmds "$prelink_cmds" 'exit $?'
- fi
-
- wrappers_required=:
- case $host in
- *cegcc* | *mingw32ce*)
- # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway.
- wrappers_required=false
- ;;
- *cygwin* | *mingw* )
- test yes = "$build_libtool_libs" || wrappers_required=false
- ;;
- *)
- if test no = "$need_relink" || test yes != "$build_libtool_libs"; then
- wrappers_required=false
- fi
- ;;
- esac
- $wrappers_required || {
- # Replace the output file specification.
- compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
- link_command=$compile_command$compile_rpath
-
- # We have no uninstalled library dependencies, so finalize right now.
- exit_status=0
- func_show_eval "$link_command" 'exit_status=$?'
-
- if test -n "$postlink_cmds"; then
- func_to_tool_file "$output"
- postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
- func_execute_cmds "$postlink_cmds" 'exit $?'
- fi
-
- # Delete the generated files.
- if test -f "$output_objdir/${outputname}S.$objext"; then
- func_show_eval '$RM "$output_objdir/${outputname}S.$objext"'
- fi
-
- exit $exit_status
- }
-
- if test -n "$compile_shlibpath$finalize_shlibpath"; then
- compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
- fi
- if test -n "$finalize_shlibpath"; then
- finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
- fi
-
- compile_var=
- finalize_var=
- if test -n "$runpath_var"; then
- if test -n "$perm_rpath"; then
- # We should set the runpath_var.
- rpath=
- for dir in $perm_rpath; do
- func_append rpath "$dir:"
- done
- compile_var="$runpath_var=\"$rpath\$$runpath_var\" "
- fi
- if test -n "$finalize_perm_rpath"; then
- # We should set the runpath_var.
- rpath=
- for dir in $finalize_perm_rpath; do
- func_append rpath "$dir:"
- done
- finalize_var="$runpath_var=\"$rpath\$$runpath_var\" "
- fi
- fi
-
- if test yes = "$no_install"; then
- # We don't need to create a wrapper script.
- link_command=$compile_var$compile_command$compile_rpath
- # Replace the output file specification.
- link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
- # Delete the old output file.
- $opt_dry_run || $RM $output
- # Link the executable and exit
- func_show_eval "$link_command" 'exit $?'
-
- if test -n "$postlink_cmds"; then
- func_to_tool_file "$output"
- postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
- func_execute_cmds "$postlink_cmds" 'exit $?'
- fi
-
- exit $EXIT_SUCCESS
- fi
-
- case $hardcode_action,$fast_install in
- relink,*)
- # Fast installation is not supported
- link_command=$compile_var$compile_command$compile_rpath
- relink_command=$finalize_var$finalize_command$finalize_rpath
-
- func_warning "this platform does not like uninstalled shared libraries"
- func_warning "'$output' will be relinked during installation"
- ;;
- *,yes)
- link_command=$finalize_var$compile_command$finalize_rpath
- relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'`
- ;;
- *,no)
- link_command=$compile_var$compile_command$compile_rpath
- relink_command=$finalize_var$finalize_command$finalize_rpath
- ;;
- *,needless)
- link_command=$finalize_var$compile_command$finalize_rpath
- relink_command=
- ;;
- esac
-
- # Replace the output file specification.
- link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`
-
- # Delete the old output files.
- $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname
-
- func_show_eval "$link_command" 'exit $?'
-
- if test -n "$postlink_cmds"; then
- func_to_tool_file "$output_objdir/$outputname"
- postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
- func_execute_cmds "$postlink_cmds" 'exit $?'
- fi
-
- # Now create the wrapper script.
- func_verbose "creating $output"
-
- # Quote the relink command for shipping.
- if test -n "$relink_command"; then
- # Preserve any variables that may affect compiler behavior
- for var in $variables_saved_for_relink; do
- if eval test -z \"\${$var+set}\"; then
- relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
- elif eval var_value=\$$var; test -z "$var_value"; then
- relink_command="$var=; export $var; $relink_command"
- else
- func_quote_for_eval "$var_value"
- relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
- fi
- done
- relink_command="(cd `pwd`; $relink_command)"
- relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
- fi
-
- # Only actually do things if not in dry run mode.
- $opt_dry_run || {
- # win32 will think the script is a binary if it has
- # a .exe suffix, so we strip it off here.
- case $output in
- *.exe) func_stripname '' '.exe' "$output"
- output=$func_stripname_result ;;
- esac
- # test for cygwin because mv fails w/o .exe extensions
- case $host in
- *cygwin*)
- exeext=.exe
- func_stripname '' '.exe' "$outputname"
- outputname=$func_stripname_result ;;
- *) exeext= ;;
- esac
- case $host in
- *cygwin* | *mingw* )
- func_dirname_and_basename "$output" "" "."
- output_name=$func_basename_result
- output_path=$func_dirname_result
- cwrappersource=$output_path/$objdir/lt-$output_name.c
- cwrapper=$output_path/$output_name.exe
- $RM $cwrappersource $cwrapper
- trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15
-
- func_emit_cwrapperexe_src > $cwrappersource
-
- # The wrapper executable is built using the $host compiler,
- # because it contains $host paths and files. If cross-
- # compiling, it, like the target executable, must be
- # executed on the $host or under an emulation environment.
- $opt_dry_run || {
- $LTCC $LTCFLAGS -o $cwrapper $cwrappersource
- $STRIP $cwrapper
- }
-
- # Now, create the wrapper script for func_source use:
- func_ltwrapper_scriptname $cwrapper
- $RM $func_ltwrapper_scriptname_result
- trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15
- $opt_dry_run || {
- # note: this script will not be executed, so do not chmod.
- if test "x$build" = "x$host"; then
- $cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result
- else
- func_emit_wrapper no > $func_ltwrapper_scriptname_result
- fi
- }
- ;;
- * )
- $RM $output
- trap "$RM $output; exit $EXIT_FAILURE" 1 2 15
-
- func_emit_wrapper no > $output
- chmod +x $output
- ;;
- esac
- }
- exit $EXIT_SUCCESS
- ;;
- esac
-
- # See if we need to build an old-fashioned archive.
- for oldlib in $oldlibs; do
-
- case $build_libtool_libs in
- convenience)
- oldobjs="$libobjs_save $symfileobj"
- addlibs=$convenience
- build_libtool_libs=no
- ;;
- module)
- oldobjs=$libobjs_save
- addlibs=$old_convenience
- build_libtool_libs=no
- ;;
- *)
- oldobjs="$old_deplibs $non_pic_objects"
- $preload && test -f "$symfileobj" \
- && func_append oldobjs " $symfileobj"
- addlibs=$old_convenience
- ;;
- esac
-
- if test -n "$addlibs"; then
- gentop=$output_objdir/${outputname}x
- func_append generated " $gentop"
-
- func_extract_archives $gentop $addlibs
- func_append oldobjs " $func_extract_archives_result"
- fi
-
- # Do each command in the archive commands.
- if test -n "$old_archive_from_new_cmds" && test yes = "$build_libtool_libs"; then
- cmds=$old_archive_from_new_cmds
- else
-
- # Add any objects from preloaded convenience libraries
- if test -n "$dlprefiles"; then
- gentop=$output_objdir/${outputname}x
- func_append generated " $gentop"
-
- func_extract_archives $gentop $dlprefiles
- func_append oldobjs " $func_extract_archives_result"
- fi
-
- # POSIX demands no paths to be encoded in archives. We have
- # to avoid creating archives with duplicate basenames if we
- # might have to extract them afterwards, e.g., when creating a
- # static archive out of a convenience library, or when linking
- # the entirety of a libtool archive into another (currently
- # not supported by libtool).
- if (for obj in $oldobjs
- do
- func_basename "$obj"
- $ECHO "$func_basename_result"
- done | sort | sort -uc >/dev/null 2>&1); then
- :
- else
- echo "copying selected object files to avoid basename conflicts..."
- gentop=$output_objdir/${outputname}x
- func_append generated " $gentop"
- func_mkdir_p "$gentop"
- save_oldobjs=$oldobjs
- oldobjs=
- counter=1
- for obj in $save_oldobjs
- do
- func_basename "$obj"
- objbase=$func_basename_result
- case " $oldobjs " in
- " ") oldobjs=$obj ;;
- *[\ /]"$objbase "*)
- while :; do
- # Make sure we don't pick an alternate name that also
- # overlaps.
- newobj=lt$counter-$objbase
- func_arith $counter + 1
- counter=$func_arith_result
- case " $oldobjs " in
- *[\ /]"$newobj "*) ;;
- *) if test ! -f "$gentop/$newobj"; then break; fi ;;
- esac
- done
- func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj"
- func_append oldobjs " $gentop/$newobj"
- ;;
- *) func_append oldobjs " $obj" ;;
- esac
- done
- fi
- func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
- tool_oldlib=$func_to_tool_file_result
- eval cmds=\"$old_archive_cmds\"
-
- func_len " $cmds"
- len=$func_len_result
- if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
- cmds=$old_archive_cmds
- elif test -n "$archiver_list_spec"; then
- func_verbose "using command file archive linking..."
- for obj in $oldobjs
- do
- func_to_tool_file "$obj"
- $ECHO "$func_to_tool_file_result"
- done > $output_objdir/$libname.libcmd
- func_to_tool_file "$output_objdir/$libname.libcmd"
- oldobjs=" $archiver_list_spec$func_to_tool_file_result"
- cmds=$old_archive_cmds
- else
- # the command line is too long to link in one step, link in parts
- func_verbose "using piecewise archive linking..."
- save_RANLIB=$RANLIB
- RANLIB=:
- objlist=
- concat_cmds=
- save_oldobjs=$oldobjs
- oldobjs=
- # Is there a better way of finding the last object in the list?
- for obj in $save_oldobjs
- do
- last_oldobj=$obj
- done
- eval test_cmds=\"$old_archive_cmds\"
- func_len " $test_cmds"
- len0=$func_len_result
- len=$len0
- for obj in $save_oldobjs
- do
- func_len " $obj"
- func_arith $len + $func_len_result
- len=$func_arith_result
- func_append objlist " $obj"
- if test "$len" -lt "$max_cmd_len"; then
- :
- else
- # the above command should be used before it gets too long
- oldobjs=$objlist
- if test "$obj" = "$last_oldobj"; then
- RANLIB=$save_RANLIB
- fi
- test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- eval concat_cmds=\"\$concat_cmds$old_archive_cmds\"
- objlist=
- len=$len0
- fi
- done
- RANLIB=$save_RANLIB
- oldobjs=$objlist
- if test -z "$oldobjs"; then
- eval cmds=\"\$concat_cmds\"
- else
- eval cmds=\"\$concat_cmds~\$old_archive_cmds\"
- fi
- fi
- fi
- func_execute_cmds "$cmds" 'exit $?'
- done
-
- test -n "$generated" && \
- func_show_eval "${RM}r$generated"
-
- # Now create the libtool archive.
- case $output in
- *.la)
- old_library=
- test yes = "$build_old_libs" && old_library=$libname.$libext
- func_verbose "creating $output"
-
- # Preserve any variables that may affect compiler behavior
- for var in $variables_saved_for_relink; do
- if eval test -z \"\${$var+set}\"; then
- relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
- elif eval var_value=\$$var; test -z "$var_value"; then
- relink_command="$var=; export $var; $relink_command"
- else
- func_quote_for_eval "$var_value"
- relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
- fi
- done
- # Quote the link command for shipping.
- relink_command="(cd `pwd`; $SHELL \"$progpath\" $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
- relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
- if test yes = "$hardcode_automatic"; then
- relink_command=
- fi
-
- # Only create the output if not a dry run.
- $opt_dry_run || {
- for installed in no yes; do
- if test yes = "$installed"; then
- if test -z "$install_libdir"; then
- break
- fi
- output=$output_objdir/${outputname}i
- # Replace all uninstalled libtool libraries with the installed ones
- newdependency_libs=
- for deplib in $dependency_libs; do
- case $deplib in
- *.la)
- func_basename "$deplib"
- name=$func_basename_result
- func_resolve_sysroot "$deplib"
- eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result`
- test -z "$libdir" && \
- func_fatal_error "'$deplib' is not a valid libtool archive"
- func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name"
- ;;
- -L*)
- func_stripname -L '' "$deplib"
- func_replace_sysroot "$func_stripname_result"
- func_append newdependency_libs " -L$func_replace_sysroot_result"
- ;;
- -R*)
- func_stripname -R '' "$deplib"
- func_replace_sysroot "$func_stripname_result"
- func_append newdependency_libs " -R$func_replace_sysroot_result"
- ;;
- *) func_append newdependency_libs " $deplib" ;;
- esac
- done
- dependency_libs=$newdependency_libs
- newdlfiles=
-
- for lib in $dlfiles; do
- case $lib in
- *.la)
- func_basename "$lib"
- name=$func_basename_result
- eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
- test -z "$libdir" && \
- func_fatal_error "'$lib' is not a valid libtool archive"
- func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name"
- ;;
- *) func_append newdlfiles " $lib" ;;
- esac
- done
- dlfiles=$newdlfiles
- newdlprefiles=
- for lib in $dlprefiles; do
- case $lib in
- *.la)
- # Only pass preopened files to the pseudo-archive (for
- # eventual linking with the app. that links it) if we
- # didn't already link the preopened objects directly into
- # the library:
- func_basename "$lib"
- name=$func_basename_result
- eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
- test -z "$libdir" && \
- func_fatal_error "'$lib' is not a valid libtool archive"
- func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name"
- ;;
- esac
- done
- dlprefiles=$newdlprefiles
- else
- newdlfiles=
- for lib in $dlfiles; do
- case $lib in
- [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;;
- *) abs=`pwd`"/$lib" ;;
- esac
- func_append newdlfiles " $abs"
- done
- dlfiles=$newdlfiles
- newdlprefiles=
- for lib in $dlprefiles; do
- case $lib in
- [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;;
- *) abs=`pwd`"/$lib" ;;
- esac
- func_append newdlprefiles " $abs"
- done
- dlprefiles=$newdlprefiles
- fi
- $RM $output
- # place dlname in correct position for cygwin
- # In fact, it would be nice if we could use this code for all target
- # systems that can't hard-code library paths into their executables
- # and that have no shared library path variable independent of PATH,
- # but it turns out we can't easily determine that from inspecting
- # libtool variables, so we have to hard-code the OSs to which it
- # applies here; at the moment, that means platforms that use the PE
- # object format with DLL files. See the long comment at the top of
- # tests/bindir.at for full details.
- tdlname=$dlname
- case $host,$output,$installed,$module,$dlname in
- *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll)
- # If a -bindir argument was supplied, place the dll there.
- if test -n "$bindir"; then
- func_relative_path "$install_libdir" "$bindir"
- tdlname=$func_relative_path_result/$dlname
- else
- # Otherwise fall back on heuristic.
- tdlname=../bin/$dlname
- fi
- ;;
- esac
- $ECHO > $output "\
-# $outputname - a libtool library file
-# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# The name that we can dlopen(3).
-dlname='$tdlname'
-
-# Names of this library.
-library_names='$library_names'
-
-# The name of the static archive.
-old_library='$old_library'
-
-# Linker flags that cannot go in dependency_libs.
-inherited_linker_flags='$new_inherited_linker_flags'
-
-# Libraries that this one depends upon.
-dependency_libs='$dependency_libs'
-
-# Names of additional weak libraries provided by this library
-weak_library_names='$weak_libs'
-
-# Version information for $libname.
-current=$current
-age=$age
-revision=$revision
-
-# Is this an already installed library?
-installed=$installed
-
-# Should we warn about portability when linking against -modules?
-shouldnotlink=$module
-
-# Files to dlopen/dlpreopen
-dlopen='$dlfiles'
-dlpreopen='$dlprefiles'
-
-# Directory that this library needs to be installed in:
-libdir='$install_libdir'"
- if test no,yes = "$installed,$need_relink"; then
- $ECHO >> $output "\
-relink_command=\"$relink_command\""
- fi
- done
- }
-
- # Do a symbolic link so that the libtool archive can be found in
- # LD_LIBRARY_PATH before the program is installed.
- func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?'
- ;;
- esac
- exit $EXIT_SUCCESS
-}
-
-if test link = "$opt_mode" || test relink = "$opt_mode"; then
- func_mode_link ${1+"$@"}
-fi
-
-
-# func_mode_uninstall arg...
-func_mode_uninstall ()
-{
- $debug_cmd
-
- RM=$nonopt
- files=
- rmforce=false
- exit_status=0
-
- # This variable tells wrapper scripts just to set variables rather
- # than running their programs.
- libtool_install_magic=$magic
-
- for arg
- do
- case $arg in
- -f) func_append RM " $arg"; rmforce=: ;;
- -*) func_append RM " $arg" ;;
- *) func_append files " $arg" ;;
- esac
- done
-
- test -z "$RM" && \
- func_fatal_help "you must specify an RM program"
-
- rmdirs=
-
- for file in $files; do
- func_dirname "$file" "" "."
- dir=$func_dirname_result
- if test . = "$dir"; then
- odir=$objdir
- else
- odir=$dir/$objdir
- fi
- func_basename "$file"
- name=$func_basename_result
- test uninstall = "$opt_mode" && odir=$dir
-
- # Remember odir for removal later, being careful to avoid duplicates
- if test clean = "$opt_mode"; then
- case " $rmdirs " in
- *" $odir "*) ;;
- *) func_append rmdirs " $odir" ;;
- esac
- fi
-
- # Don't error if the file doesn't exist and rm -f was used.
- if { test -L "$file"; } >/dev/null 2>&1 ||
- { test -h "$file"; } >/dev/null 2>&1 ||
- test -f "$file"; then
- :
- elif test -d "$file"; then
- exit_status=1
- continue
- elif $rmforce; then
- continue
- fi
-
- rmfiles=$file
-
- case $name in
- *.la)
- # Possibly a libtool archive, so verify it.
- if func_lalib_p "$file"; then
- func_source $dir/$name
-
- # Delete the libtool libraries and symlinks.
- for n in $library_names; do
- func_append rmfiles " $odir/$n"
- done
- test -n "$old_library" && func_append rmfiles " $odir/$old_library"
-
- case $opt_mode in
- clean)
- case " $library_names " in
- *" $dlname "*) ;;
- *) test -n "$dlname" && func_append rmfiles " $odir/$dlname" ;;
- esac
- test -n "$libdir" && func_append rmfiles " $odir/$name $odir/${name}i"
- ;;
- uninstall)
- if test -n "$library_names"; then
- # Do each command in the postuninstall commands.
- func_execute_cmds "$postuninstall_cmds" '$rmforce || exit_status=1'
- fi
-
- if test -n "$old_library"; then
- # Do each command in the old_postuninstall commands.
- func_execute_cmds "$old_postuninstall_cmds" '$rmforce || exit_status=1'
- fi
- # FIXME: should reinstall the best remaining shared library.
- ;;
- esac
- fi
- ;;
-
- *.lo)
- # Possibly a libtool object, so verify it.
- if func_lalib_p "$file"; then
-
- # Read the .lo file
- func_source $dir/$name
-
- # Add PIC object to the list of files to remove.
- if test -n "$pic_object" && test none != "$pic_object"; then
- func_append rmfiles " $dir/$pic_object"
- fi
-
- # Add non-PIC object to the list of files to remove.
- if test -n "$non_pic_object" && test none != "$non_pic_object"; then
- func_append rmfiles " $dir/$non_pic_object"
- fi
- fi
- ;;
-
- *)
- if test clean = "$opt_mode"; then
- noexename=$name
- case $file in
- *.exe)
- func_stripname '' '.exe' "$file"
- file=$func_stripname_result
- func_stripname '' '.exe' "$name"
- noexename=$func_stripname_result
- # $file with .exe has already been added to rmfiles,
- # add $file without .exe
- func_append rmfiles " $file"
- ;;
- esac
- # Do a test to see if this is a libtool program.
- if func_ltwrapper_p "$file"; then
- if func_ltwrapper_executable_p "$file"; then
- func_ltwrapper_scriptname "$file"
- relink_command=
- func_source $func_ltwrapper_scriptname_result
- func_append rmfiles " $func_ltwrapper_scriptname_result"
- else
- relink_command=
- func_source $dir/$noexename
- fi
-
- # note $name still contains .exe if it was in $file originally
- # as does the version of $file that was added into $rmfiles
- func_append rmfiles " $odir/$name $odir/${name}S.$objext"
- if test yes = "$fast_install" && test -n "$relink_command"; then
- func_append rmfiles " $odir/lt-$name"
- fi
- if test "X$noexename" != "X$name"; then
- func_append rmfiles " $odir/lt-$noexename.c"
- fi
- fi
- fi
- ;;
- esac
- func_show_eval "$RM $rmfiles" 'exit_status=1'
- done
-
- # Try to remove the $objdir's in the directories where we deleted files
- for dir in $rmdirs; do
- if test -d "$dir"; then
- func_show_eval "rmdir $dir >/dev/null 2>&1"
- fi
- done
-
- exit $exit_status
-}
-
-if test uninstall = "$opt_mode" || test clean = "$opt_mode"; then
- func_mode_uninstall ${1+"$@"}
-fi
-
-test -z "$opt_mode" && {
- help=$generic_help
- func_fatal_help "you must specify a MODE"
-}
-
-test -z "$exec_cmd" && \
- func_fatal_help "invalid operation mode '$opt_mode'"
-
-if test -n "$exec_cmd"; then
- eval exec "$exec_cmd"
- exit $EXIT_FAILURE
-fi
-
-exit $exit_status
-
-
-# The TAGs below are defined such that we never get into a situation
-# where we disable both kinds of libraries. Given conflicting
-# choices, we go for a static library, that is the most portable,
-# since we can't tell whether shared libraries were disabled because
-# the user asked for that or because the platform doesn't support
-# them. This is particularly important on AIX, because we don't
-# support having both static and shared libraries enabled at the same
-# time on that platform, so we default to a shared-only configuration.
-# If a disable-shared tag is given, we'll fallback to a static-only
-# configuration. But we'll never go from static-only to shared-only.
-
-# ### BEGIN LIBTOOL TAG CONFIG: disable-shared
-build_libtool_libs=no
-build_old_libs=yes
-# ### END LIBTOOL TAG CONFIG: disable-shared
-
-# ### BEGIN LIBTOOL TAG CONFIG: disable-static
-build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac`
-# ### END LIBTOOL TAG CONFIG: disable-static
-
-# Local Variables:
-# mode:shell-script
-# sh-indentation:2
-# End:
diff --git a/3rdparty/libpng/libpng-1.6.37/ltmain.sh b/3rdparty/libpng/libpng-1.6.37/ltmain.sh
deleted file mode 100755
index 0f0a2da..0000000
--- a/3rdparty/libpng/libpng-1.6.37/ltmain.sh
+++ /dev/null
@@ -1,11147 +0,0 @@
-#! /bin/sh
-## DO NOT EDIT - This file generated from ./build-aux/ltmain.in
-## by inline-source v2014-01-03.01
-
-# libtool (GNU libtool) 2.4.6
-# Provide generalized library-building support services.
-# Written by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
-
-# Copyright (C) 1996-2015 Free Software Foundation, Inc.
-# This is free software; see the source for copying conditions. There is NO
-# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-# GNU Libtool is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# As a special exception to the GNU General Public License,
-# if you distribute this file as part of a program or library that
-# is built using GNU Libtool, you may include this file under the
-# same distribution terms that you use for the rest of that program.
-#
-# GNU Libtool is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-
-PROGRAM=libtool
-PACKAGE=libtool
-VERSION=2.4.6
-package_revision=2.4.6
-
-
-## ------ ##
-## Usage. ##
-## ------ ##
-
-# Run './libtool --help' for help with using this script from the
-# command line.
-
-
-## ------------------------------- ##
-## User overridable command paths. ##
-## ------------------------------- ##
-
-# After configure completes, it has a better idea of some of the
-# shell tools we need than the defaults used by the functions shared
-# with bootstrap, so set those here where they can still be over-
-# ridden by the user, but otherwise take precedence.
-
-: ${AUTOCONF="autoconf"}
-: ${AUTOMAKE="automake"}
-
-
-## -------------------------- ##
-## Source external libraries. ##
-## -------------------------- ##
-
-# Much of our low-level functionality needs to be sourced from external
-# libraries, which are installed to $pkgauxdir.
-
-# Set a version string for this script.
-scriptversion=2015-01-20.17; # UTC
-
-# General shell script boiler plate, and helper functions.
-# Written by Gary V. Vaughan, 2004
-
-# Copyright (C) 2004-2015 Free Software Foundation, Inc.
-# This is free software; see the source for copying conditions. There is NO
-# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-
-# As a special exception to the GNU General Public License, if you distribute
-# this file as part of a program or library that is built using GNU Libtool,
-# you may include this file under the same distribution terms that you use
-# for the rest of that program.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-# Please report bugs or propose patches to gary@gnu.org.
-
-
-## ------ ##
-## Usage. ##
-## ------ ##
-
-# Evaluate this file near the top of your script to gain access to
-# the functions and variables defined here:
-#
-# . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh
-#
-# If you need to override any of the default environment variable
-# settings, do that before evaluating this file.
-
-
-## -------------------- ##
-## Shell normalisation. ##
-## -------------------- ##
-
-# Some shells need a little help to be as Bourne compatible as possible.
-# Before doing anything else, make sure all that help has been provided!
-
-DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
- emulate sh
- NULLCMD=:
- # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
-else
- case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac
-fi
-
-# NLS nuisances: We save the old values in case they are required later.
-_G_user_locale=
-_G_safe_locale=
-for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
-do
- eval "if test set = \"\${$_G_var+set}\"; then
- save_$_G_var=\$$_G_var
- $_G_var=C
- export $_G_var
- _G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\"
- _G_safe_locale=\"$_G_var=C; \$_G_safe_locale\"
- fi"
-done
-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-# Make sure IFS has a sensible default
-sp=' '
-nl='
-'
-IFS="$sp $nl"
-
-# There are apparently some retarded systems that use ';' as a PATH separator!
-if test "${PATH_SEPARATOR+set}" != set; then
- PATH_SEPARATOR=:
- (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
- (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
- PATH_SEPARATOR=';'
- }
-fi
-
-
-
-## ------------------------- ##
-## Locate command utilities. ##
-## ------------------------- ##
-
-
-# func_executable_p FILE
-# ----------------------
-# Check that FILE is an executable regular file.
-func_executable_p ()
-{
- test -f "$1" && test -x "$1"
-}
-
-
-# func_path_progs PROGS_LIST CHECK_FUNC [PATH]
-# --------------------------------------------
-# Search for either a program that responds to --version with output
-# containing "GNU", or else returned by CHECK_FUNC otherwise, by
-# trying all the directories in PATH with each of the elements of
-# PROGS_LIST.
-#
-# CHECK_FUNC should accept the path to a candidate program, and
-# set $func_check_prog_result if it truncates its output less than
-# $_G_path_prog_max characters.
-func_path_progs ()
-{
- _G_progs_list=$1
- _G_check_func=$2
- _G_PATH=${3-"$PATH"}
-
- _G_path_prog_max=0
- _G_path_prog_found=false
- _G_save_IFS=$IFS; IFS=${PATH_SEPARATOR-:}
- for _G_dir in $_G_PATH; do
- IFS=$_G_save_IFS
- test -z "$_G_dir" && _G_dir=.
- for _G_prog_name in $_G_progs_list; do
- for _exeext in '' .EXE; do
- _G_path_prog=$_G_dir/$_G_prog_name$_exeext
- func_executable_p "$_G_path_prog" || continue
- case `"$_G_path_prog" --version 2>&1` in
- *GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;;
- *) $_G_check_func $_G_path_prog
- func_path_progs_result=$func_check_prog_result
- ;;
- esac
- $_G_path_prog_found && break 3
- done
- done
- done
- IFS=$_G_save_IFS
- test -z "$func_path_progs_result" && {
- echo "no acceptable sed could be found in \$PATH" >&2
- exit 1
- }
-}
-
-
-# We want to be able to use the functions in this file before configure
-# has figured out where the best binaries are kept, which means we have
-# to search for them ourselves - except when the results are already set
-# where we skip the searches.
-
-# Unless the user overrides by setting SED, search the path for either GNU
-# sed, or the sed that truncates its output the least.
-test -z "$SED" && {
- _G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
- for _G_i in 1 2 3 4 5 6 7; do
- _G_sed_script=$_G_sed_script$nl$_G_sed_script
- done
- echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed
- _G_sed_script=
-
- func_check_prog_sed ()
- {
- _G_path_prog=$1
-
- _G_count=0
- printf 0123456789 >conftest.in
- while :
- do
- cat conftest.in conftest.in >conftest.tmp
- mv conftest.tmp conftest.in
- cp conftest.in conftest.nl
- echo '' >> conftest.nl
- "$_G_path_prog" -f conftest.sed <conftest.nl >conftest.out 2>/dev/null || break
- diff conftest.out conftest.nl >/dev/null 2>&1 || break
- _G_count=`expr $_G_count + 1`
- if test "$_G_count" -gt "$_G_path_prog_max"; then
- # Best one so far, save it but keep looking for a better one
- func_check_prog_result=$_G_path_prog
- _G_path_prog_max=$_G_count
- fi
- # 10*(2^10) chars as input seems more than enough
- test 10 -lt "$_G_count" && break
- done
- rm -f conftest.in conftest.tmp conftest.nl conftest.out
- }
-
- func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin
- rm -f conftest.sed
- SED=$func_path_progs_result
-}
-
-
-# Unless the user overrides by setting GREP, search the path for either GNU
-# grep, or the grep that truncates its output the least.
-test -z "$GREP" && {
- func_check_prog_grep ()
- {
- _G_path_prog=$1
-
- _G_count=0
- _G_path_prog_max=0
- printf 0123456789 >conftest.in
- while :
- do
- cat conftest.in conftest.in >conftest.tmp
- mv conftest.tmp conftest.in
- cp conftest.in conftest.nl
- echo 'GREP' >> conftest.nl
- "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' <conftest.nl >conftest.out 2>/dev/null || break
- diff conftest.out conftest.nl >/dev/null 2>&1 || break
- _G_count=`expr $_G_count + 1`
- if test "$_G_count" -gt "$_G_path_prog_max"; then
- # Best one so far, save it but keep looking for a better one
- func_check_prog_result=$_G_path_prog
- _G_path_prog_max=$_G_count
- fi
- # 10*(2^10) chars as input seems more than enough
- test 10 -lt "$_G_count" && break
- done
- rm -f conftest.in conftest.tmp conftest.nl conftest.out
- }
-
- func_path_progs "grep ggrep" func_check_prog_grep $PATH:/usr/xpg4/bin
- GREP=$func_path_progs_result
-}
-
-
-## ------------------------------- ##
-## User overridable command paths. ##
-## ------------------------------- ##
-
-# All uppercase variable names are used for environment variables. These
-# variables can be overridden by the user before calling a script that
-# uses them if a suitable command of that name is not already available
-# in the command search PATH.
-
-: ${CP="cp -f"}
-: ${ECHO="printf %s\n"}
-: ${EGREP="$GREP -E"}
-: ${FGREP="$GREP -F"}
-: ${LN_S="ln -s"}
-: ${MAKE="make"}
-: ${MKDIR="mkdir"}
-: ${MV="mv -f"}
-: ${RM="rm -f"}
-: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
-
-
-## -------------------- ##
-## Useful sed snippets. ##
-## -------------------- ##
-
-sed_dirname='s|/[^/]*$||'
-sed_basename='s|^.*/||'
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
-
-# Same as above, but do not quote variable references.
-sed_double_quote_subst='s/\(["`\\]\)/\\\1/g'
-
-# Sed substitution that turns a string into a regex matching for the
-# string literally.
-sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g'
-
-# Sed substitution that converts a w32 file name or path
-# that contains forward slashes, into one that contains
-# (escaped) backslashes. A very naive implementation.
-sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
-
-# Re-'\' parameter expansions in output of sed_double_quote_subst that
-# were '\'-ed in input to the same. If an odd number of '\' preceded a
-# '$' in input to sed_double_quote_subst, that '$' was protected from
-# expansion. Since each input '\' is now two '\'s, look for any number
-# of runs of four '\'s followed by two '\'s and then a '$'. '\' that '$'.
-_G_bs='\\'
-_G_bs2='\\\\'
-_G_bs4='\\\\\\\\'
-_G_dollar='\$'
-sed_double_backslash="\
- s/$_G_bs4/&\\
-/g
- s/^$_G_bs2$_G_dollar/$_G_bs&/
- s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g
- s/\n//g"
-
-
-## ----------------- ##
-## Global variables. ##
-## ----------------- ##
-
-# Except for the global variables explicitly listed below, the following
-# functions in the '^func_' namespace, and the '^require_' namespace
-# variables initialised in the 'Resource management' section, sourcing
-# this file will not pollute your global namespace with anything
-# else. There's no portable way to scope variables in Bourne shell
-# though, so actually running these functions will sometimes place
-# results into a variable named after the function, and often use
-# temporary variables in the '^_G_' namespace. If you are careful to
-# avoid using those namespaces casually in your sourcing script, things
-# should continue to work as you expect. And, of course, you can freely
-# overwrite any of the functions or variables defined here before
-# calling anything to customize them.
-
-EXIT_SUCCESS=0
-EXIT_FAILURE=1
-EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing.
-EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake.
-
-# Allow overriding, eg assuming that you follow the convention of
-# putting '$debug_cmd' at the start of all your functions, you can get
-# bash to show function call trace with:
-#
-# debug_cmd='eval echo "${FUNCNAME[0]} $*" >&2' bash your-script-name
-debug_cmd=${debug_cmd-":"}
-exit_cmd=:
-
-# By convention, finish your script with:
-#
-# exit $exit_status
-#
-# so that you can set exit_status to non-zero if you want to indicate
-# something went wrong during execution without actually bailing out at
-# the point of failure.
-exit_status=$EXIT_SUCCESS
-
-# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
-# is ksh but when the shell is invoked as "sh" and the current value of
-# the _XPG environment variable is not equal to 1 (one), the special
-# positional parameter $0, within a function call, is the name of the
-# function.
-progpath=$0
-
-# The name of this program.
-progname=`$ECHO "$progpath" |$SED "$sed_basename"`
-
-# Make sure we have an absolute progpath for reexecution:
-case $progpath in
- [\\/]*|[A-Za-z]:\\*) ;;
- *[\\/]*)
- progdir=`$ECHO "$progpath" |$SED "$sed_dirname"`
- progdir=`cd "$progdir" && pwd`
- progpath=$progdir/$progname
- ;;
- *)
- _G_IFS=$IFS
- IFS=${PATH_SEPARATOR-:}
- for progdir in $PATH; do
- IFS=$_G_IFS
- test -x "$progdir/$progname" && break
- done
- IFS=$_G_IFS
- test -n "$progdir" || progdir=`pwd`
- progpath=$progdir/$progname
- ;;
-esac
-
-
-## ----------------- ##
-## Standard options. ##
-## ----------------- ##
-
-# The following options affect the operation of the functions defined
-# below, and should be set appropriately depending on run-time para-
-# meters passed on the command line.
-
-opt_dry_run=false
-opt_quiet=false
-opt_verbose=false
-
-# Categories 'all' and 'none' are always available. Append any others
-# you will pass as the first argument to func_warning from your own
-# code.
-warning_categories=
-
-# By default, display warnings according to 'opt_warning_types'. Set
-# 'warning_func' to ':' to elide all warnings, or func_fatal_error to
-# treat the next displayed warning as a fatal error.
-warning_func=func_warn_and_continue
-
-# Set to 'all' to display all warnings, 'none' to suppress all
-# warnings, or a space delimited list of some subset of
-# 'warning_categories' to display only the listed warnings.
-opt_warning_types=all
-
-
-## -------------------- ##
-## Resource management. ##
-## -------------------- ##
-
-# This section contains definitions for functions that each ensure a
-# particular resource (a file, or a non-empty configuration variable for
-# example) is available, and if appropriate to extract default values
-# from pertinent package files. Call them using their associated
-# 'require_*' variable to ensure that they are executed, at most, once.
-#
-# It's entirely deliberate that calling these functions can set
-# variables that don't obey the namespace limitations obeyed by the rest
-# of this file, in order that that they be as useful as possible to
-# callers.
-
-
-# require_term_colors
-# -------------------
-# Allow display of bold text on terminals that support it.
-require_term_colors=func_require_term_colors
-func_require_term_colors ()
-{
- $debug_cmd
-
- test -t 1 && {
- # COLORTERM and USE_ANSI_COLORS environment variables take
- # precedence, because most terminfo databases neglect to describe
- # whether color sequences are supported.
- test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"}
-
- if test 1 = "$USE_ANSI_COLORS"; then
- # Standard ANSI escape sequences
- tc_reset='[0m'
- tc_bold='[1m'; tc_standout='[7m'
- tc_red='[31m'; tc_green='[32m'
- tc_blue='[34m'; tc_cyan='[36m'
- else
- # Otherwise trust the terminfo database after all.
- test -n "`tput sgr0 2>/dev/null`" && {
- tc_reset=`tput sgr0`
- test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold`
- tc_standout=$tc_bold
- test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso`
- test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1`
- test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2`
- test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4`
- test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5`
- }
- fi
- }
-
- require_term_colors=:
-}
-
-
-## ----------------- ##
-## Function library. ##
-## ----------------- ##
-
-# This section contains a variety of useful functions to call in your
-# scripts. Take note of the portable wrappers for features provided by
-# some modern shells, which will fall back to slower equivalents on
-# less featureful shells.
-
-
-# func_append VAR VALUE
-# ---------------------
-# Append VALUE onto the existing contents of VAR.
-
- # We should try to minimise forks, especially on Windows where they are
- # unreasonably slow, so skip the feature probes when bash or zsh are
- # being used:
- if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then
- : ${_G_HAVE_ARITH_OP="yes"}
- : ${_G_HAVE_XSI_OPS="yes"}
- # The += operator was introduced in bash 3.1
- case $BASH_VERSION in
- [12].* | 3.0 | 3.0*) ;;
- *)
- : ${_G_HAVE_PLUSEQ_OP="yes"}
- ;;
- esac
- fi
-
- # _G_HAVE_PLUSEQ_OP
- # Can be empty, in which case the shell is probed, "yes" if += is
- # useable or anything else if it does not work.
- test -z "$_G_HAVE_PLUSEQ_OP" \
- && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \
- && _G_HAVE_PLUSEQ_OP=yes
-
-if test yes = "$_G_HAVE_PLUSEQ_OP"
-then
- # This is an XSI compatible shell, allowing a faster implementation...
- eval 'func_append ()
- {
- $debug_cmd
-
- eval "$1+=\$2"
- }'
-else
- # ...otherwise fall back to using expr, which is often a shell builtin.
- func_append ()
- {
- $debug_cmd
-
- eval "$1=\$$1\$2"
- }
-fi
-
-
-# func_append_quoted VAR VALUE
-# ----------------------------
-# Quote VALUE and append to the end of shell variable VAR, separated
-# by a space.
-if test yes = "$_G_HAVE_PLUSEQ_OP"; then
- eval 'func_append_quoted ()
- {
- $debug_cmd
-
- func_quote_for_eval "$2"
- eval "$1+=\\ \$func_quote_for_eval_result"
- }'
-else
- func_append_quoted ()
- {
- $debug_cmd
-
- func_quote_for_eval "$2"
- eval "$1=\$$1\\ \$func_quote_for_eval_result"
- }
-fi
-
-
-# func_append_uniq VAR VALUE
-# --------------------------
-# Append unique VALUE onto the existing contents of VAR, assuming
-# entries are delimited by the first character of VALUE. For example:
-#
-# func_append_uniq options " --another-option option-argument"
-#
-# will only append to $options if " --another-option option-argument "
-# is not already present somewhere in $options already (note spaces at
-# each end implied by leading space in second argument).
-func_append_uniq ()
-{
- $debug_cmd
-
- eval _G_current_value='`$ECHO $'$1'`'
- _G_delim=`expr "$2" : '\(.\)'`
-
- case $_G_delim$_G_current_value$_G_delim in
- *"$2$_G_delim"*) ;;
- *) func_append "$@" ;;
- esac
-}
-
-
-# func_arith TERM...
-# ------------------
-# Set func_arith_result to the result of evaluating TERMs.
- test -z "$_G_HAVE_ARITH_OP" \
- && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \
- && _G_HAVE_ARITH_OP=yes
-
-if test yes = "$_G_HAVE_ARITH_OP"; then
- eval 'func_arith ()
- {
- $debug_cmd
-
- func_arith_result=$(( $* ))
- }'
-else
- func_arith ()
- {
- $debug_cmd
-
- func_arith_result=`expr "$@"`
- }
-fi
-
-
-# func_basename FILE
-# ------------------
-# Set func_basename_result to FILE with everything up to and including
-# the last / stripped.
-if test yes = "$_G_HAVE_XSI_OPS"; then
- # If this shell supports suffix pattern removal, then use it to avoid
- # forking. Hide the definitions single quotes in case the shell chokes
- # on unsupported syntax...
- _b='func_basename_result=${1##*/}'
- _d='case $1 in
- */*) func_dirname_result=${1%/*}$2 ;;
- * ) func_dirname_result=$3 ;;
- esac'
-
-else
- # ...otherwise fall back to using sed.
- _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`'
- _d='func_dirname_result=`$ECHO "$1" |$SED "$sed_dirname"`
- if test "X$func_dirname_result" = "X$1"; then
- func_dirname_result=$3
- else
- func_append func_dirname_result "$2"
- fi'
-fi
-
-eval 'func_basename ()
-{
- $debug_cmd
-
- '"$_b"'
-}'
-
-
-# func_dirname FILE APPEND NONDIR_REPLACEMENT
-# -------------------------------------------
-# Compute the dirname of FILE. If nonempty, add APPEND to the result,
-# otherwise set result to NONDIR_REPLACEMENT.
-eval 'func_dirname ()
-{
- $debug_cmd
-
- '"$_d"'
-}'
-
-
-# func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT
-# --------------------------------------------------------
-# Perform func_basename and func_dirname in a single function
-# call:
-# dirname: Compute the dirname of FILE. If nonempty,
-# add APPEND to the result, otherwise set result
-# to NONDIR_REPLACEMENT.
-# value returned in "$func_dirname_result"
-# basename: Compute filename of FILE.
-# value retuned in "$func_basename_result"
-# For efficiency, we do not delegate to the functions above but instead
-# duplicate the functionality here.
-eval 'func_dirname_and_basename ()
-{
- $debug_cmd
-
- '"$_b"'
- '"$_d"'
-}'
-
-
-# func_echo ARG...
-# ----------------
-# Echo program name prefixed message.
-func_echo ()
-{
- $debug_cmd
-
- _G_message=$*
-
- func_echo_IFS=$IFS
- IFS=$nl
- for _G_line in $_G_message; do
- IFS=$func_echo_IFS
- $ECHO "$progname: $_G_line"
- done
- IFS=$func_echo_IFS
-}
-
-
-# func_echo_all ARG...
-# --------------------
-# Invoke $ECHO with all args, space-separated.
-func_echo_all ()
-{
- $ECHO "$*"
-}
-
-
-# func_echo_infix_1 INFIX ARG...
-# ------------------------------
-# Echo program name, followed by INFIX on the first line, with any
-# additional lines not showing INFIX.
-func_echo_infix_1 ()
-{
- $debug_cmd
-
- $require_term_colors
-
- _G_infix=$1; shift
- _G_indent=$_G_infix
- _G_prefix="$progname: $_G_infix: "
- _G_message=$*
-
- # Strip color escape sequences before counting printable length
- for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan"
- do
- test -n "$_G_tc" && {
- _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"`
- _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"`
- }
- done
- _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`" " ## exclude from sc_prohibit_nested_quotes
-
- func_echo_infix_1_IFS=$IFS
- IFS=$nl
- for _G_line in $_G_message; do
- IFS=$func_echo_infix_1_IFS
- $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2
- _G_prefix=$_G_indent
- done
- IFS=$func_echo_infix_1_IFS
-}
-
-
-# func_error ARG...
-# -----------------
-# Echo program name prefixed message to standard error.
-func_error ()
-{
- $debug_cmd
-
- $require_term_colors
-
- func_echo_infix_1 " $tc_standout${tc_red}error$tc_reset" "$*" >&2
-}
-
-
-# func_fatal_error ARG...
-# -----------------------
-# Echo program name prefixed message to standard error, and exit.
-func_fatal_error ()
-{
- $debug_cmd
-
- func_error "$*"
- exit $EXIT_FAILURE
-}
-
-
-# func_grep EXPRESSION FILENAME
-# -----------------------------
-# Check whether EXPRESSION matches any line of FILENAME, without output.
-func_grep ()
-{
- $debug_cmd
-
- $GREP "$1" "$2" >/dev/null 2>&1
-}
-
-
-# func_len STRING
-# ---------------
-# Set func_len_result to the length of STRING. STRING may not
-# start with a hyphen.
- test -z "$_G_HAVE_XSI_OPS" \
- && (eval 'x=a/b/c;
- test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
- && _G_HAVE_XSI_OPS=yes
-
-if test yes = "$_G_HAVE_XSI_OPS"; then
- eval 'func_len ()
- {
- $debug_cmd
-
- func_len_result=${#1}
- }'
-else
- func_len ()
- {
- $debug_cmd
-
- func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len`
- }
-fi
-
-
-# func_mkdir_p DIRECTORY-PATH
-# ---------------------------
-# Make sure the entire path to DIRECTORY-PATH is available.
-func_mkdir_p ()
-{
- $debug_cmd
-
- _G_directory_path=$1
- _G_dir_list=
-
- if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then
-
- # Protect directory names starting with '-'
- case $_G_directory_path in
- -*) _G_directory_path=./$_G_directory_path ;;
- esac
-
- # While some portion of DIR does not yet exist...
- while test ! -d "$_G_directory_path"; do
- # ...make a list in topmost first order. Use a colon delimited
- # list incase some portion of path contains whitespace.
- _G_dir_list=$_G_directory_path:$_G_dir_list
-
- # If the last portion added has no slash in it, the list is done
- case $_G_directory_path in */*) ;; *) break ;; esac
-
- # ...otherwise throw away the child directory and loop
- _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"`
- done
- _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'`
-
- func_mkdir_p_IFS=$IFS; IFS=:
- for _G_dir in $_G_dir_list; do
- IFS=$func_mkdir_p_IFS
- # mkdir can fail with a 'File exist' error if two processes
- # try to create one of the directories concurrently. Don't
- # stop in that case!
- $MKDIR "$_G_dir" 2>/dev/null || :
- done
- IFS=$func_mkdir_p_IFS
-
- # Bail out if we (or some other process) failed to create a directory.
- test -d "$_G_directory_path" || \
- func_fatal_error "Failed to create '$1'"
- fi
-}
-
-
-# func_mktempdir [BASENAME]
-# -------------------------
-# Make a temporary directory that won't clash with other running
-# libtool processes, and avoids race conditions if possible. If
-# given, BASENAME is the basename for that directory.
-func_mktempdir ()
-{
- $debug_cmd
-
- _G_template=${TMPDIR-/tmp}/${1-$progname}
-
- if test : = "$opt_dry_run"; then
- # Return a directory name, but don't create it in dry-run mode
- _G_tmpdir=$_G_template-$$
- else
-
- # If mktemp works, use that first and foremost
- _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null`
-
- if test ! -d "$_G_tmpdir"; then
- # Failing that, at least try and use $RANDOM to avoid a race
- _G_tmpdir=$_G_template-${RANDOM-0}$$
-
- func_mktempdir_umask=`umask`
- umask 0077
- $MKDIR "$_G_tmpdir"
- umask $func_mktempdir_umask
- fi
-
- # If we're not in dry-run mode, bomb out on failure
- test -d "$_G_tmpdir" || \
- func_fatal_error "cannot create temporary directory '$_G_tmpdir'"
- fi
-
- $ECHO "$_G_tmpdir"
-}
-
-
-# func_normal_abspath PATH
-# ------------------------
-# Remove doubled-up and trailing slashes, "." path components,
-# and cancel out any ".." path components in PATH after making
-# it an absolute path.
-func_normal_abspath ()
-{
- $debug_cmd
-
- # These SED scripts presuppose an absolute path with a trailing slash.
- _G_pathcar='s|^/\([^/]*\).*$|\1|'
- _G_pathcdr='s|^/[^/]*||'
- _G_removedotparts=':dotsl
- s|/\./|/|g
- t dotsl
- s|/\.$|/|'
- _G_collapseslashes='s|/\{1,\}|/|g'
- _G_finalslash='s|/*$|/|'
-
- # Start from root dir and reassemble the path.
- func_normal_abspath_result=
- func_normal_abspath_tpath=$1
- func_normal_abspath_altnamespace=
- case $func_normal_abspath_tpath in
- "")
- # Empty path, that just means $cwd.
- func_stripname '' '/' "`pwd`"
- func_normal_abspath_result=$func_stripname_result
- return
- ;;
- # The next three entries are used to spot a run of precisely
- # two leading slashes without using negated character classes;
- # we take advantage of case's first-match behaviour.
- ///*)
- # Unusual form of absolute path, do nothing.
- ;;
- //*)
- # Not necessarily an ordinary path; POSIX reserves leading '//'
- # and for example Cygwin uses it to access remote file shares
- # over CIFS/SMB, so we conserve a leading double slash if found.
- func_normal_abspath_altnamespace=/
- ;;
- /*)
- # Absolute path, do nothing.
- ;;
- *)
- # Relative path, prepend $cwd.
- func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
- ;;
- esac
-
- # Cancel out all the simple stuff to save iterations. We also want
- # the path to end with a slash for ease of parsing, so make sure
- # there is one (and only one) here.
- func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
- -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"`
- while :; do
- # Processed it all yet?
- if test / = "$func_normal_abspath_tpath"; then
- # If we ascended to the root using ".." the result may be empty now.
- if test -z "$func_normal_abspath_result"; then
- func_normal_abspath_result=/
- fi
- break
- fi
- func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
- -e "$_G_pathcar"`
- func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
- -e "$_G_pathcdr"`
- # Figure out what to do with it
- case $func_normal_abspath_tcomponent in
- "")
- # Trailing empty path component, ignore it.
- ;;
- ..)
- # Parent dir; strip last assembled component from result.
- func_dirname "$func_normal_abspath_result"
- func_normal_abspath_result=$func_dirname_result
- ;;
- *)
- # Actual path component, append it.
- func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent"
- ;;
- esac
- done
- # Restore leading double-slash if one was found on entry.
- func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
-}
-
-
-# func_notquiet ARG...
-# --------------------
-# Echo program name prefixed message only when not in quiet mode.
-func_notquiet ()
-{
- $debug_cmd
-
- $opt_quiet || func_echo ${1+"$@"}
-
- # A bug in bash halts the script if the last line of a function
- # fails when set -e is in force, so we need another command to
- # work around that:
- :
-}
-
-
-# func_relative_path SRCDIR DSTDIR
-# --------------------------------
-# Set func_relative_path_result to the relative path from SRCDIR to DSTDIR.
-func_relative_path ()
-{
- $debug_cmd
-
- func_relative_path_result=
- func_normal_abspath "$1"
- func_relative_path_tlibdir=$func_normal_abspath_result
- func_normal_abspath "$2"
- func_relative_path_tbindir=$func_normal_abspath_result
-
- # Ascend the tree starting from libdir
- while :; do
- # check if we have found a prefix of bindir
- case $func_relative_path_tbindir in
- $func_relative_path_tlibdir)
- # found an exact match
- func_relative_path_tcancelled=
- break
- ;;
- $func_relative_path_tlibdir*)
- # found a matching prefix
- func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
- func_relative_path_tcancelled=$func_stripname_result
- if test -z "$func_relative_path_result"; then
- func_relative_path_result=.
- fi
- break
- ;;
- *)
- func_dirname $func_relative_path_tlibdir
- func_relative_path_tlibdir=$func_dirname_result
- if test -z "$func_relative_path_tlibdir"; then
- # Have to descend all the way to the root!
- func_relative_path_result=../$func_relative_path_result
- func_relative_path_tcancelled=$func_relative_path_tbindir
- break
- fi
- func_relative_path_result=../$func_relative_path_result
- ;;
- esac
- done
-
- # Now calculate path; take care to avoid doubling-up slashes.
- func_stripname '' '/' "$func_relative_path_result"
- func_relative_path_result=$func_stripname_result
- func_stripname '/' '/' "$func_relative_path_tcancelled"
- if test -n "$func_stripname_result"; then
- func_append func_relative_path_result "/$func_stripname_result"
- fi
-
- # Normalisation. If bindir is libdir, return '.' else relative path.
- if test -n "$func_relative_path_result"; then
- func_stripname './' '' "$func_relative_path_result"
- func_relative_path_result=$func_stripname_result
- fi
-
- test -n "$func_relative_path_result" || func_relative_path_result=.
-
- :
-}
-
-
-# func_quote_for_eval ARG...
-# --------------------------
-# Aesthetically quote ARGs to be evaled later.
-# This function returns two values:
-# i) func_quote_for_eval_result
-# double-quoted, suitable for a subsequent eval
-# ii) func_quote_for_eval_unquoted_result
-# has all characters that are still active within double
-# quotes backslashified.
-func_quote_for_eval ()
-{
- $debug_cmd
-
- func_quote_for_eval_unquoted_result=
- func_quote_for_eval_result=
- while test 0 -lt $#; do
- case $1 in
- *[\\\`\"\$]*)
- _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;;
- *)
- _G_unquoted_arg=$1 ;;
- esac
- if test -n "$func_quote_for_eval_unquoted_result"; then
- func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg"
- else
- func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg"
- fi
-
- case $_G_unquoted_arg in
- # Double-quote args containing shell metacharacters to delay
- # word splitting, command substitution and variable expansion
- # for a subsequent eval.
- # Many Bourne shells cannot handle close brackets correctly
- # in scan sets, so we specify it separately.
- *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
- _G_quoted_arg=\"$_G_unquoted_arg\"
- ;;
- *)
- _G_quoted_arg=$_G_unquoted_arg
- ;;
- esac
-
- if test -n "$func_quote_for_eval_result"; then
- func_append func_quote_for_eval_result " $_G_quoted_arg"
- else
- func_append func_quote_for_eval_result "$_G_quoted_arg"
- fi
- shift
- done
-}
-
-
-# func_quote_for_expand ARG
-# -------------------------
-# Aesthetically quote ARG to be evaled later; same as above,
-# but do not quote variable references.
-func_quote_for_expand ()
-{
- $debug_cmd
-
- case $1 in
- *[\\\`\"]*)
- _G_arg=`$ECHO "$1" | $SED \
- -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;;
- *)
- _G_arg=$1 ;;
- esac
-
- case $_G_arg in
- # Double-quote args containing shell metacharacters to delay
- # word splitting and command substitution for a subsequent eval.
- # Many Bourne shells cannot handle close brackets correctly
- # in scan sets, so we specify it separately.
- *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
- _G_arg=\"$_G_arg\"
- ;;
- esac
-
- func_quote_for_expand_result=$_G_arg
-}
-
-
-# func_stripname PREFIX SUFFIX NAME
-# ---------------------------------
-# strip PREFIX and SUFFIX from NAME, and store in func_stripname_result.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-if test yes = "$_G_HAVE_XSI_OPS"; then
- eval 'func_stripname ()
- {
- $debug_cmd
-
- # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
- # positional parameters, so assign one to ordinary variable first.
- func_stripname_result=$3
- func_stripname_result=${func_stripname_result#"$1"}
- func_stripname_result=${func_stripname_result%"$2"}
- }'
-else
- func_stripname ()
- {
- $debug_cmd
-
- case $2 in
- .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;;
- *) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;;
- esac
- }
-fi
-
-
-# func_show_eval CMD [FAIL_EXP]
-# -----------------------------
-# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is
-# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it.
-func_show_eval ()
-{
- $debug_cmd
-
- _G_cmd=$1
- _G_fail_exp=${2-':'}
-
- func_quote_for_expand "$_G_cmd"
- eval "func_notquiet $func_quote_for_expand_result"
-
- $opt_dry_run || {
- eval "$_G_cmd"
- _G_status=$?
- if test 0 -ne "$_G_status"; then
- eval "(exit $_G_status); $_G_fail_exp"
- fi
- }
-}
-
-
-# func_show_eval_locale CMD [FAIL_EXP]
-# ------------------------------------
-# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is
-# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it. Use the saved locale for evaluation.
-func_show_eval_locale ()
-{
- $debug_cmd
-
- _G_cmd=$1
- _G_fail_exp=${2-':'}
-
- $opt_quiet || {
- func_quote_for_expand "$_G_cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
-
- $opt_dry_run || {
- eval "$_G_user_locale
- $_G_cmd"
- _G_status=$?
- eval "$_G_safe_locale"
- if test 0 -ne "$_G_status"; then
- eval "(exit $_G_status); $_G_fail_exp"
- fi
- }
-}
-
-
-# func_tr_sh
-# ----------
-# Turn $1 into a string suitable for a shell variable name.
-# Result is stored in $func_tr_sh_result. All characters
-# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
-# if $1 begins with a digit, a '_' is prepended as well.
-func_tr_sh ()
-{
- $debug_cmd
-
- case $1 in
- [0-9]* | *[!a-zA-Z0-9_]*)
- func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'`
- ;;
- * )
- func_tr_sh_result=$1
- ;;
- esac
-}
-
-
-# func_verbose ARG...
-# -------------------
-# Echo program name prefixed message in verbose mode only.
-func_verbose ()
-{
- $debug_cmd
-
- $opt_verbose && func_echo "$*"
-
- :
-}
-
-
-# func_warn_and_continue ARG...
-# -----------------------------
-# Echo program name prefixed warning message to standard error.
-func_warn_and_continue ()
-{
- $debug_cmd
-
- $require_term_colors
-
- func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2
-}
-
-
-# func_warning CATEGORY ARG...
-# ----------------------------
-# Echo program name prefixed warning message to standard error. Warning
-# messages can be filtered according to CATEGORY, where this function
-# elides messages where CATEGORY is not listed in the global variable
-# 'opt_warning_types'.
-func_warning ()
-{
- $debug_cmd
-
- # CATEGORY must be in the warning_categories list!
- case " $warning_categories " in
- *" $1 "*) ;;
- *) func_internal_error "invalid warning category '$1'" ;;
- esac
-
- _G_category=$1
- shift
-
- case " $opt_warning_types " in
- *" $_G_category "*) $warning_func ${1+"$@"} ;;
- esac
-}
-
-
-# func_sort_ver VER1 VER2
-# -----------------------
-# 'sort -V' is not generally available.
-# Note this deviates from the version comparison in automake
-# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
-# but this should suffice as we won't be specifying old
-# version formats or redundant trailing .0 in bootstrap.conf.
-# If we did want full compatibility then we should probably
-# use m4_version_compare from autoconf.
-func_sort_ver ()
-{
- $debug_cmd
-
- printf '%s\n%s\n' "$1" "$2" \
- | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n
-}
-
-# func_lt_ver PREV CURR
-# ---------------------
-# Return true if PREV and CURR are in the correct order according to
-# func_sort_ver, otherwise false. Use it like this:
-#
-# func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..."
-func_lt_ver ()
-{
- $debug_cmd
-
- test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q`
-}
-
-
-# Local variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
-# time-stamp-time-zone: "UTC"
-# End:
-#! /bin/sh
-
-# Set a version string for this script.
-scriptversion=2014-01-07.03; # UTC
-
-# A portable, pluggable option parser for Bourne shell.
-# Written by Gary V. Vaughan, 2010
-
-# Copyright (C) 2010-2015 Free Software Foundation, Inc.
-# This is free software; see the source for copying conditions. There is NO
-# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-# Please report bugs or propose patches to gary@gnu.org.
-
-
-## ------ ##
-## Usage. ##
-## ------ ##
-
-# This file is a library for parsing options in your shell scripts along
-# with assorted other useful supporting features that you can make use
-# of too.
-#
-# For the simplest scripts you might need only:
-#
-# #!/bin/sh
-# . relative/path/to/funclib.sh
-# . relative/path/to/options-parser
-# scriptversion=1.0
-# func_options ${1+"$@"}
-# eval set dummy "$func_options_result"; shift
-# ...rest of your script...
-#
-# In order for the '--version' option to work, you will need to have a
-# suitably formatted comment like the one at the top of this file
-# starting with '# Written by ' and ending with '# warranty; '.
-#
-# For '-h' and '--help' to work, you will also need a one line
-# description of your script's purpose in a comment directly above the
-# '# Written by ' line, like the one at the top of this file.
-#
-# The default options also support '--debug', which will turn on shell
-# execution tracing (see the comment above debug_cmd below for another
-# use), and '--verbose' and the func_verbose function to allow your script
-# to display verbose messages only when your user has specified
-# '--verbose'.
-#
-# After sourcing this file, you can plug processing for additional
-# options by amending the variables from the 'Configuration' section
-# below, and following the instructions in the 'Option parsing'
-# section further down.
-
-## -------------- ##
-## Configuration. ##
-## -------------- ##
-
-# You should override these variables in your script after sourcing this
-# file so that they reflect the customisations you have added to the
-# option parser.
-
-# The usage line for option parsing errors and the start of '-h' and
-# '--help' output messages. You can embed shell variables for delayed
-# expansion at the time the message is displayed, but you will need to
-# quote other shell meta-characters carefully to prevent them being
-# expanded when the contents are evaled.
-usage='$progpath [OPTION]...'
-
-# Short help message in response to '-h' and '--help'. Add to this or
-# override it after sourcing this library to reflect the full set of
-# options your script accepts.
-usage_message="\
- --debug enable verbose shell tracing
- -W, --warnings=CATEGORY
- report the warnings falling in CATEGORY [all]
- -v, --verbose verbosely report processing
- --version print version information and exit
- -h, --help print short or long help message and exit
-"
-
-# Additional text appended to 'usage_message' in response to '--help'.
-long_help_message="
-Warning categories include:
- 'all' show all warnings
- 'none' turn off all the warnings
- 'error' warnings are treated as fatal errors"
-
-# Help message printed before fatal option parsing errors.
-fatal_help="Try '\$progname --help' for more information."
-
-
-
-## ------------------------- ##
-## Hook function management. ##
-## ------------------------- ##
-
-# This section contains functions for adding, removing, and running hooks
-# to the main code. A hook is just a named list of of function, that can
-# be run in order later on.
-
-# func_hookable FUNC_NAME
-# -----------------------
-# Declare that FUNC_NAME will run hooks added with
-# 'func_add_hook FUNC_NAME ...'.
-func_hookable ()
-{
- $debug_cmd
-
- func_append hookable_fns " $1"
-}
-
-
-# func_add_hook FUNC_NAME HOOK_FUNC
-# ---------------------------------
-# Request that FUNC_NAME call HOOK_FUNC before it returns. FUNC_NAME must
-# first have been declared "hookable" by a call to 'func_hookable'.
-func_add_hook ()
-{
- $debug_cmd
-
- case " $hookable_fns " in
- *" $1 "*) ;;
- *) func_fatal_error "'$1' does not accept hook functions." ;;
- esac
-
- eval func_append ${1}_hooks '" $2"'
-}
-
-
-# func_remove_hook FUNC_NAME HOOK_FUNC
-# ------------------------------------
-# Remove HOOK_FUNC from the list of functions called by FUNC_NAME.
-func_remove_hook ()
-{
- $debug_cmd
-
- eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`'
-}
-
-
-# func_run_hooks FUNC_NAME [ARG]...
-# ---------------------------------
-# Run all hook functions registered to FUNC_NAME.
-# It is assumed that the list of hook functions contains nothing more
-# than a whitespace-delimited list of legal shell function names, and
-# no effort is wasted trying to catch shell meta-characters or preserve
-# whitespace.
-func_run_hooks ()
-{
- $debug_cmd
-
- case " $hookable_fns " in
- *" $1 "*) ;;
- *) func_fatal_error "'$1' does not support hook funcions.n" ;;
- esac
-
- eval _G_hook_fns=\$$1_hooks; shift
-
- for _G_hook in $_G_hook_fns; do
- eval $_G_hook '"$@"'
-
- # store returned options list back into positional
- # parameters for next 'cmd' execution.
- eval _G_hook_result=\$${_G_hook}_result
- eval set dummy "$_G_hook_result"; shift
- done
-
- func_quote_for_eval ${1+"$@"}
- func_run_hooks_result=$func_quote_for_eval_result
-}
-
-
-
-## --------------- ##
-## Option parsing. ##
-## --------------- ##
-
-# In order to add your own option parsing hooks, you must accept the
-# full positional parameter list in your hook function, remove any
-# options that you action, and then pass back the remaining unprocessed
-# options in '<hooked_function_name>_result', escaped suitably for
-# 'eval'. Like this:
-#
-# my_options_prep ()
-# {
-# $debug_cmd
-#
-# # Extend the existing usage message.
-# usage_message=$usage_message'
-# -s, --silent don'\''t print informational messages
-# '
-#
-# func_quote_for_eval ${1+"$@"}
-# my_options_prep_result=$func_quote_for_eval_result
-# }
-# func_add_hook func_options_prep my_options_prep
-#
-#
-# my_silent_option ()
-# {
-# $debug_cmd
-#
-# # Note that for efficiency, we parse as many options as we can
-# # recognise in a loop before passing the remainder back to the
-# # caller on the first unrecognised argument we encounter.
-# while test $# -gt 0; do
-# opt=$1; shift
-# case $opt in
-# --silent|-s) opt_silent=: ;;
-# # Separate non-argument short options:
-# -s*) func_split_short_opt "$_G_opt"
-# set dummy "$func_split_short_opt_name" \
-# "-$func_split_short_opt_arg" ${1+"$@"}
-# shift
-# ;;
-# *) set dummy "$_G_opt" "$*"; shift; break ;;
-# esac
-# done
-#
-# func_quote_for_eval ${1+"$@"}
-# my_silent_option_result=$func_quote_for_eval_result
-# }
-# func_add_hook func_parse_options my_silent_option
-#
-#
-# my_option_validation ()
-# {
-# $debug_cmd
-#
-# $opt_silent && $opt_verbose && func_fatal_help "\
-# '--silent' and '--verbose' options are mutually exclusive."
-#
-# func_quote_for_eval ${1+"$@"}
-# my_option_validation_result=$func_quote_for_eval_result
-# }
-# func_add_hook func_validate_options my_option_validation
-#
-# You'll alse need to manually amend $usage_message to reflect the extra
-# options you parse. It's preferable to append if you can, so that
-# multiple option parsing hooks can be added safely.
-
-
-# func_options [ARG]...
-# ---------------------
-# All the functions called inside func_options are hookable. See the
-# individual implementations for details.
-func_hookable func_options
-func_options ()
-{
- $debug_cmd
-
- func_options_prep ${1+"$@"}
- eval func_parse_options \
- ${func_options_prep_result+"$func_options_prep_result"}
- eval func_validate_options \
- ${func_parse_options_result+"$func_parse_options_result"}
-
- eval func_run_hooks func_options \
- ${func_validate_options_result+"$func_validate_options_result"}
-
- # save modified positional parameters for caller
- func_options_result=$func_run_hooks_result
-}
-
-
-# func_options_prep [ARG]...
-# --------------------------
-# All initialisations required before starting the option parse loop.
-# Note that when calling hook functions, we pass through the list of
-# positional parameters. If a hook function modifies that list, and
-# needs to propogate that back to rest of this script, then the complete
-# modified list must be put in 'func_run_hooks_result' before
-# returning.
-func_hookable func_options_prep
-func_options_prep ()
-{
- $debug_cmd
-
- # Option defaults:
- opt_verbose=false
- opt_warning_types=
-
- func_run_hooks func_options_prep ${1+"$@"}
-
- # save modified positional parameters for caller
- func_options_prep_result=$func_run_hooks_result
-}
-
-
-# func_parse_options [ARG]...
-# ---------------------------
-# The main option parsing loop.
-func_hookable func_parse_options
-func_parse_options ()
-{
- $debug_cmd
-
- func_parse_options_result=
-
- # this just eases exit handling
- while test $# -gt 0; do
- # Defer to hook functions for initial option parsing, so they
- # get priority in the event of reusing an option name.
- func_run_hooks func_parse_options ${1+"$@"}
-
- # Adjust func_parse_options positional parameters to match
- eval set dummy "$func_run_hooks_result"; shift
-
- # Break out of the loop if we already parsed every option.
- test $# -gt 0 || break
-
- _G_opt=$1
- shift
- case $_G_opt in
- --debug|-x) debug_cmd='set -x'
- func_echo "enabling shell trace mode"
- $debug_cmd
- ;;
-
- --no-warnings|--no-warning|--no-warn)
- set dummy --warnings none ${1+"$@"}
- shift
- ;;
-
- --warnings|--warning|-W)
- test $# = 0 && func_missing_arg $_G_opt && break
- case " $warning_categories $1" in
- *" $1 "*)
- # trailing space prevents matching last $1 above
- func_append_uniq opt_warning_types " $1"
- ;;
- *all)
- opt_warning_types=$warning_categories
- ;;
- *none)
- opt_warning_types=none
- warning_func=:
- ;;
- *error)
- opt_warning_types=$warning_categories
- warning_func=func_fatal_error
- ;;
- *)
- func_fatal_error \
- "unsupported warning category: '$1'"
- ;;
- esac
- shift
- ;;
-
- --verbose|-v) opt_verbose=: ;;
- --version) func_version ;;
- -\?|-h) func_usage ;;
- --help) func_help ;;
-
- # Separate optargs to long options (plugins may need this):
- --*=*) func_split_equals "$_G_opt"
- set dummy "$func_split_equals_lhs" \
- "$func_split_equals_rhs" ${1+"$@"}
- shift
- ;;
-
- # Separate optargs to short options:
- -W*)
- func_split_short_opt "$_G_opt"
- set dummy "$func_split_short_opt_name" \
- "$func_split_short_opt_arg" ${1+"$@"}
- shift
- ;;
-
- # Separate non-argument short options:
- -\?*|-h*|-v*|-x*)
- func_split_short_opt "$_G_opt"
- set dummy "$func_split_short_opt_name" \
- "-$func_split_short_opt_arg" ${1+"$@"}
- shift
- ;;
-
- --) break ;;
- -*) func_fatal_help "unrecognised option: '$_G_opt'" ;;
- *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;;
- esac
- done
-
- # save modified positional parameters for caller
- func_quote_for_eval ${1+"$@"}
- func_parse_options_result=$func_quote_for_eval_result
-}
-
-
-# func_validate_options [ARG]...
-# ------------------------------
-# Perform any sanity checks on option settings and/or unconsumed
-# arguments.
-func_hookable func_validate_options
-func_validate_options ()
-{
- $debug_cmd
-
- # Display all warnings if -W was not given.
- test -n "$opt_warning_types" || opt_warning_types=" $warning_categories"
-
- func_run_hooks func_validate_options ${1+"$@"}
-
- # Bail if the options were screwed!
- $exit_cmd $EXIT_FAILURE
-
- # save modified positional parameters for caller
- func_validate_options_result=$func_run_hooks_result
-}
-
-
-
-## ----------------- ##
-## Helper functions. ##
-## ----------------- ##
-
-# This section contains the helper functions used by the rest of the
-# hookable option parser framework in ascii-betical order.
-
-
-# func_fatal_help ARG...
-# ----------------------
-# Echo program name prefixed message to standard error, followed by
-# a help hint, and exit.
-func_fatal_help ()
-{
- $debug_cmd
-
- eval \$ECHO \""Usage: $usage"\"
- eval \$ECHO \""$fatal_help"\"
- func_error ${1+"$@"}
- exit $EXIT_FAILURE
-}
-
-
-# func_help
-# ---------
-# Echo long help message to standard output and exit.
-func_help ()
-{
- $debug_cmd
-
- func_usage_message
- $ECHO "$long_help_message"
- exit 0
-}
-
-
-# func_missing_arg ARGNAME
-# ------------------------
-# Echo program name prefixed message to standard error and set global
-# exit_cmd.
-func_missing_arg ()
-{
- $debug_cmd
-
- func_error "Missing argument for '$1'."
- exit_cmd=exit
-}
-
-
-# func_split_equals STRING
-# ------------------------
-# Set func_split_equals_lhs and func_split_equals_rhs shell variables after
-# splitting STRING at the '=' sign.
-test -z "$_G_HAVE_XSI_OPS" \
- && (eval 'x=a/b/c;
- test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
- && _G_HAVE_XSI_OPS=yes
-
-if test yes = "$_G_HAVE_XSI_OPS"
-then
- # This is an XSI compatible shell, allowing a faster implementation...
- eval 'func_split_equals ()
- {
- $debug_cmd
-
- func_split_equals_lhs=${1%%=*}
- func_split_equals_rhs=${1#*=}
- test "x$func_split_equals_lhs" = "x$1" \
- && func_split_equals_rhs=
- }'
-else
- # ...otherwise fall back to using expr, which is often a shell builtin.
- func_split_equals ()
- {
- $debug_cmd
-
- func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'`
- func_split_equals_rhs=
- test "x$func_split_equals_lhs" = "x$1" \
- || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'`
- }
-fi #func_split_equals
-
-
-# func_split_short_opt SHORTOPT
-# -----------------------------
-# Set func_split_short_opt_name and func_split_short_opt_arg shell
-# variables after splitting SHORTOPT after the 2nd character.
-if test yes = "$_G_HAVE_XSI_OPS"
-then
- # This is an XSI compatible shell, allowing a faster implementation...
- eval 'func_split_short_opt ()
- {
- $debug_cmd
-
- func_split_short_opt_arg=${1#??}
- func_split_short_opt_name=${1%"$func_split_short_opt_arg"}
- }'
-else
- # ...otherwise fall back to using expr, which is often a shell builtin.
- func_split_short_opt ()
- {
- $debug_cmd
-
- func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'`
- func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'`
- }
-fi #func_split_short_opt
-
-
-# func_usage
-# ----------
-# Echo short help message to standard output and exit.
-func_usage ()
-{
- $debug_cmd
-
- func_usage_message
- $ECHO "Run '$progname --help |${PAGER-more}' for full usage"
- exit 0
-}
-
-
-# func_usage_message
-# ------------------
-# Echo short help message to standard output.
-func_usage_message ()
-{
- $debug_cmd
-
- eval \$ECHO \""Usage: $usage"\"
- echo
- $SED -n 's|^# ||
- /^Written by/{
- x;p;x
- }
- h
- /^Written by/q' < "$progpath"
- echo
- eval \$ECHO \""$usage_message"\"
-}
-
-
-# func_version
-# ------------
-# Echo version message to standard output and exit.
-func_version ()
-{
- $debug_cmd
-
- printf '%s\n' "$progname $scriptversion"
- $SED -n '
- /(C)/!b go
- :more
- /\./!{
- N
- s|\n# | |
- b more
- }
- :go
- /^# Written by /,/# warranty; / {
- s|^# ||
- s|^# *$||
- s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2|
- p
- }
- /^# Written by / {
- s|^# ||
- p
- }
- /^warranty; /q' < "$progpath"
-
- exit $?
-}
-
-
-# Local variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
-# time-stamp-time-zone: "UTC"
-# End:
-
-# Set a version string.
-scriptversion='(GNU libtool) 2.4.6'
-
-
-# func_echo ARG...
-# ----------------
-# Libtool also displays the current mode in messages, so override
-# funclib.sh func_echo with this custom definition.
-func_echo ()
-{
- $debug_cmd
-
- _G_message=$*
-
- func_echo_IFS=$IFS
- IFS=$nl
- for _G_line in $_G_message; do
- IFS=$func_echo_IFS
- $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line"
- done
- IFS=$func_echo_IFS
-}
-
-
-# func_warning ARG...
-# -------------------
-# Libtool warnings are not categorized, so override funclib.sh
-# func_warning with this simpler definition.
-func_warning ()
-{
- $debug_cmd
-
- $warning_func ${1+"$@"}
-}
-
-
-## ---------------- ##
-## Options parsing. ##
-## ---------------- ##
-
-# Hook in the functions to make sure our own options are parsed during
-# the option parsing loop.
-
-usage='$progpath [OPTION]... [MODE-ARG]...'
-
-# Short help message in response to '-h'.
-usage_message="Options:
- --config show all configuration variables
- --debug enable verbose shell tracing
- -n, --dry-run display commands without modifying any files
- --features display basic configuration information and exit
- --mode=MODE use operation mode MODE
- --no-warnings equivalent to '-Wnone'
- --preserve-dup-deps don't remove duplicate dependency libraries
- --quiet, --silent don't print informational messages
- --tag=TAG use configuration variables from tag TAG
- -v, --verbose print more informational messages than default
- --version print version information
- -W, --warnings=CATEGORY report the warnings falling in CATEGORY [all]
- -h, --help, --help-all print short, long, or detailed help message
-"
-
-# Additional text appended to 'usage_message' in response to '--help'.
-func_help ()
-{
- $debug_cmd
-
- func_usage_message
- $ECHO "$long_help_message
-
-MODE must be one of the following:
-
- clean remove files from the build directory
- compile compile a source file into a libtool object
- execute automatically set library path, then run a program
- finish complete the installation of libtool libraries
- install install libraries or executables
- link create a library or an executable
- uninstall remove libraries from an installed directory
-
-MODE-ARGS vary depending on the MODE. When passed as first option,
-'--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that.
-Try '$progname --help --mode=MODE' for a more detailed description of MODE.
-
-When reporting a bug, please describe a test case to reproduce it and
-include the following information:
-
- host-triplet: $host
- shell: $SHELL
- compiler: $LTCC
- compiler flags: $LTCFLAGS
- linker: $LD (gnu? $with_gnu_ld)
- version: $progname (GNU libtool) 2.4.6
- automake: `($AUTOMAKE --version) 2>/dev/null |$SED 1q`
- autoconf: `($AUTOCONF --version) 2>/dev/null |$SED 1q`
-
-Report bugs to <bug-libtool@gnu.org>.
-GNU libtool home page: <http://www.gnu.org/software/libtool/>.
-General help using GNU software: <http://www.gnu.org/gethelp/>."
- exit 0
-}
-
-
-# func_lo2o OBJECT-NAME
-# ---------------------
-# Transform OBJECT-NAME from a '.lo' suffix to the platform specific
-# object suffix.
-
-lo2o=s/\\.lo\$/.$objext/
-o2lo=s/\\.$objext\$/.lo/
-
-if test yes = "$_G_HAVE_XSI_OPS"; then
- eval 'func_lo2o ()
- {
- case $1 in
- *.lo) func_lo2o_result=${1%.lo}.$objext ;;
- * ) func_lo2o_result=$1 ;;
- esac
- }'
-
- # func_xform LIBOBJ-OR-SOURCE
- # ---------------------------
- # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise)
- # suffix to a '.lo' libtool-object suffix.
- eval 'func_xform ()
- {
- func_xform_result=${1%.*}.lo
- }'
-else
- # ...otherwise fall back to using sed.
- func_lo2o ()
- {
- func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"`
- }
-
- func_xform ()
- {
- func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'`
- }
-fi
-
-
-# func_fatal_configuration ARG...
-# -------------------------------
-# Echo program name prefixed message to standard error, followed by
-# a configuration failure hint, and exit.
-func_fatal_configuration ()
-{
- func__fatal_error ${1+"$@"} \
- "See the $PACKAGE documentation for more information." \
- "Fatal configuration error."
-}
-
-
-# func_config
-# -----------
-# Display the configuration for all the tags in this script.
-func_config ()
-{
- re_begincf='^# ### BEGIN LIBTOOL'
- re_endcf='^# ### END LIBTOOL'
-
- # Default configuration.
- $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath"
-
- # Now print the configurations for the tags.
- for tagname in $taglist; do
- $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath"
- done
-
- exit $?
-}
-
-
-# func_features
-# -------------
-# Display the features supported by this script.
-func_features ()
-{
- echo "host: $host"
- if test yes = "$build_libtool_libs"; then
- echo "enable shared libraries"
- else
- echo "disable shared libraries"
- fi
- if test yes = "$build_old_libs"; then
- echo "enable static libraries"
- else
- echo "disable static libraries"
- fi
-
- exit $?
-}
-
-
-# func_enable_tag TAGNAME
-# -----------------------
-# Verify that TAGNAME is valid, and either flag an error and exit, or
-# enable the TAGNAME tag. We also add TAGNAME to the global $taglist
-# variable here.
-func_enable_tag ()
-{
- # Global variable:
- tagname=$1
-
- re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
- re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
- sed_extractcf=/$re_begincf/,/$re_endcf/p
-
- # Validate tagname.
- case $tagname in
- *[!-_A-Za-z0-9,/]*)
- func_fatal_error "invalid tag name: $tagname"
- ;;
- esac
-
- # Don't test for the "default" C tag, as we know it's
- # there but not specially marked.
- case $tagname in
- CC) ;;
- *)
- if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
- taglist="$taglist $tagname"
-
- # Evaluate the configuration. Be careful to quote the path
- # and the sed script, to avoid splitting on whitespace, but
- # also don't use non-portable quotes within backquotes within
- # quotes we have to do it in 2 steps:
- extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
- eval "$extractedcf"
- else
- func_error "ignoring unknown tag $tagname"
- fi
- ;;
- esac
-}
-
-
-# func_check_version_match
-# ------------------------
-# Ensure that we are using m4 macros, and libtool script from the same
-# release of libtool.
-func_check_version_match ()
-{
- if test "$package_revision" != "$macro_revision"; then
- if test "$VERSION" != "$macro_version"; then
- if test -z "$macro_version"; then
- cat >&2 <<_LT_EOF
-$progname: Version mismatch error. This is $PACKAGE $VERSION, but the
-$progname: definition of this LT_INIT comes from an older release.
-$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
-$progname: and run autoconf again.
-_LT_EOF
- else
- cat >&2 <<_LT_EOF
-$progname: Version mismatch error. This is $PACKAGE $VERSION, but the
-$progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
-$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
-$progname: and run autoconf again.
-_LT_EOF
- fi
- else
- cat >&2 <<_LT_EOF
-$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision,
-$progname: but the definition of this LT_INIT comes from revision $macro_revision.
-$progname: You should recreate aclocal.m4 with macros from revision $package_revision
-$progname: of $PACKAGE $VERSION and run autoconf again.
-_LT_EOF
- fi
-
- exit $EXIT_MISMATCH
- fi
-}
-
-
-# libtool_options_prep [ARG]...
-# -----------------------------
-# Preparation for options parsed by libtool.
-libtool_options_prep ()
-{
- $debug_mode
-
- # Option defaults:
- opt_config=false
- opt_dlopen=
- opt_dry_run=false
- opt_help=false
- opt_mode=
- opt_preserve_dup_deps=false
- opt_quiet=false
-
- nonopt=
- preserve_args=
-
- # Shorthand for --mode=foo, only valid as the first argument
- case $1 in
- clean|clea|cle|cl)
- shift; set dummy --mode clean ${1+"$@"}; shift
- ;;
- compile|compil|compi|comp|com|co|c)
- shift; set dummy --mode compile ${1+"$@"}; shift
- ;;
- execute|execut|execu|exec|exe|ex|e)
- shift; set dummy --mode execute ${1+"$@"}; shift
- ;;
- finish|finis|fini|fin|fi|f)
- shift; set dummy --mode finish ${1+"$@"}; shift
- ;;
- install|instal|insta|inst|ins|in|i)
- shift; set dummy --mode install ${1+"$@"}; shift
- ;;
- link|lin|li|l)
- shift; set dummy --mode link ${1+"$@"}; shift
- ;;
- uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
- shift; set dummy --mode uninstall ${1+"$@"}; shift
- ;;
- esac
-
- # Pass back the list of options.
- func_quote_for_eval ${1+"$@"}
- libtool_options_prep_result=$func_quote_for_eval_result
-}
-func_add_hook func_options_prep libtool_options_prep
-
-
-# libtool_parse_options [ARG]...
-# ---------------------------------
-# Provide handling for libtool specific options.
-libtool_parse_options ()
-{
- $debug_cmd
-
- # Perform our own loop to consume as many options as possible in
- # each iteration.
- while test $# -gt 0; do
- _G_opt=$1
- shift
- case $_G_opt in
- --dry-run|--dryrun|-n)
- opt_dry_run=:
- ;;
-
- --config) func_config ;;
-
- --dlopen|-dlopen)
- opt_dlopen="${opt_dlopen+$opt_dlopen
-}$1"
- shift
- ;;
-
- --preserve-dup-deps)
- opt_preserve_dup_deps=: ;;
-
- --features) func_features ;;
-
- --finish) set dummy --mode finish ${1+"$@"}; shift ;;
-
- --help) opt_help=: ;;
-
- --help-all) opt_help=': help-all' ;;
-
- --mode) test $# = 0 && func_missing_arg $_G_opt && break
- opt_mode=$1
- case $1 in
- # Valid mode arguments:
- clean|compile|execute|finish|install|link|relink|uninstall) ;;
-
- # Catch anything else as an error
- *) func_error "invalid argument for $_G_opt"
- exit_cmd=exit
- break
- ;;
- esac
- shift
- ;;
-
- --no-silent|--no-quiet)
- opt_quiet=false
- func_append preserve_args " $_G_opt"
- ;;
-
- --no-warnings|--no-warning|--no-warn)
- opt_warning=false
- func_append preserve_args " $_G_opt"
- ;;
-
- --no-verbose)
- opt_verbose=false
- func_append preserve_args " $_G_opt"
- ;;
-
- --silent|--quiet)
- opt_quiet=:
- opt_verbose=false
- func_append preserve_args " $_G_opt"
- ;;
-
- --tag) test $# = 0 && func_missing_arg $_G_opt && break
- opt_tag=$1
- func_append preserve_args " $_G_opt $1"
- func_enable_tag "$1"
- shift
- ;;
-
- --verbose|-v) opt_quiet=false
- opt_verbose=:
- func_append preserve_args " $_G_opt"
- ;;
-
- # An option not handled by this hook function:
- *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;;
- esac
- done
-
-
- # save modified positional parameters for caller
- func_quote_for_eval ${1+"$@"}
- libtool_parse_options_result=$func_quote_for_eval_result
-}
-func_add_hook func_parse_options libtool_parse_options
-
-
-
-# libtool_validate_options [ARG]...
-# ---------------------------------
-# Perform any sanity checks on option settings and/or unconsumed
-# arguments.
-libtool_validate_options ()
-{
- # save first non-option argument
- if test 0 -lt $#; then
- nonopt=$1
- shift
- fi
-
- # preserve --debug
- test : = "$debug_cmd" || func_append preserve_args " --debug"
-
- case $host in
- # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452
- # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788
- *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*)
- # don't eliminate duplications in $postdeps and $predeps
- opt_duplicate_compiler_generated_deps=:
- ;;
- *)
- opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps
- ;;
- esac
-
- $opt_help || {
- # Sanity checks first:
- func_check_version_match
-
- test yes != "$build_libtool_libs" \
- && test yes != "$build_old_libs" \
- && func_fatal_configuration "not configured to build any kind of library"
-
- # Darwin sucks
- eval std_shrext=\"$shrext_cmds\"
-
- # Only execute mode is allowed to have -dlopen flags.
- if test -n "$opt_dlopen" && test execute != "$opt_mode"; then
- func_error "unrecognized option '-dlopen'"
- $ECHO "$help" 1>&2
- exit $EXIT_FAILURE
- fi
-
- # Change the help message to a mode-specific one.
- generic_help=$help
- help="Try '$progname --help --mode=$opt_mode' for more information."
- }
-
- # Pass back the unparsed argument list
- func_quote_for_eval ${1+"$@"}
- libtool_validate_options_result=$func_quote_for_eval_result
-}
-func_add_hook func_validate_options libtool_validate_options
-
-
-# Process options as early as possible so that --help and --version
-# can return quickly.
-func_options ${1+"$@"}
-eval set dummy "$func_options_result"; shift
-
-
-
-## ----------- ##
-## Main. ##
-## ----------- ##
-
-magic='%%%MAGIC variable%%%'
-magic_exe='%%%MAGIC EXE variable%%%'
-
-# Global variables.
-extracted_archives=
-extracted_serial=0
-
-# If this variable is set in any of the actions, the command in it
-# will be execed at the end. This prevents here-documents from being
-# left over by shells.
-exec_cmd=
-
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
- eval 'cat <<_LTECHO_EOF
-$1
-_LTECHO_EOF'
-}
-
-# func_generated_by_libtool
-# True iff stdin has been generated by Libtool. This function is only
-# a basic sanity check; it will hardly flush out determined imposters.
-func_generated_by_libtool_p ()
-{
- $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
-}
-
-# func_lalib_p file
-# True iff FILE is a libtool '.la' library or '.lo' object file.
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_lalib_p ()
-{
- test -f "$1" &&
- $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p
-}
-
-# func_lalib_unsafe_p file
-# True iff FILE is a libtool '.la' library or '.lo' object file.
-# This function implements the same check as func_lalib_p without
-# resorting to external programs. To this end, it redirects stdin and
-# closes it afterwards, without saving the original file descriptor.
-# As a safety measure, use it only where a negative result would be
-# fatal anyway. Works if 'file' does not exist.
-func_lalib_unsafe_p ()
-{
- lalib_p=no
- if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then
- for lalib_p_l in 1 2 3 4
- do
- read lalib_p_line
- case $lalib_p_line in
- \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
- esac
- done
- exec 0<&5 5<&-
- fi
- test yes = "$lalib_p"
-}
-
-# func_ltwrapper_script_p file
-# True iff FILE is a libtool wrapper script
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_script_p ()
-{
- test -f "$1" &&
- $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p
-}
-
-# func_ltwrapper_executable_p file
-# True iff FILE is a libtool wrapper executable
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_executable_p ()
-{
- func_ltwrapper_exec_suffix=
- case $1 in
- *.exe) ;;
- *) func_ltwrapper_exec_suffix=.exe ;;
- esac
- $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1
-}
-
-# func_ltwrapper_scriptname file
-# Assumes file is an ltwrapper_executable
-# uses $file to determine the appropriate filename for a
-# temporary ltwrapper_script.
-func_ltwrapper_scriptname ()
-{
- func_dirname_and_basename "$1" "" "."
- func_stripname '' '.exe' "$func_basename_result"
- func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper
-}
-
-# func_ltwrapper_p file
-# True iff FILE is a libtool wrapper script or wrapper executable
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_p ()
-{
- func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1"
-}
-
-
-# func_execute_cmds commands fail_cmd
-# Execute tilde-delimited COMMANDS.
-# If FAIL_CMD is given, eval that upon failure.
-# FAIL_CMD may read-access the current command in variable CMD!
-func_execute_cmds ()
-{
- $debug_cmd
-
- save_ifs=$IFS; IFS='~'
- for cmd in $1; do
- IFS=$sp$nl
- eval cmd=\"$cmd\"
- IFS=$save_ifs
- func_show_eval "$cmd" "${2-:}"
- done
- IFS=$save_ifs
-}
-
-
-# func_source file
-# Source FILE, adding directory component if necessary.
-# Note that it is not necessary on cygwin/mingw to append a dot to
-# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
-# behavior happens only for exec(3), not for open(2)! Also, sourcing
-# 'FILE.' does not work on cygwin managed mounts.
-func_source ()
-{
- $debug_cmd
-
- case $1 in
- */* | *\\*) . "$1" ;;
- *) . "./$1" ;;
- esac
-}
-
-
-# func_resolve_sysroot PATH
-# Replace a leading = in PATH with a sysroot. Store the result into
-# func_resolve_sysroot_result
-func_resolve_sysroot ()
-{
- func_resolve_sysroot_result=$1
- case $func_resolve_sysroot_result in
- =*)
- func_stripname '=' '' "$func_resolve_sysroot_result"
- func_resolve_sysroot_result=$lt_sysroot$func_stripname_result
- ;;
- esac
-}
-
-# func_replace_sysroot PATH
-# If PATH begins with the sysroot, replace it with = and
-# store the result into func_replace_sysroot_result.
-func_replace_sysroot ()
-{
- case $lt_sysroot:$1 in
- ?*:"$lt_sysroot"*)
- func_stripname "$lt_sysroot" '' "$1"
- func_replace_sysroot_result='='$func_stripname_result
- ;;
- *)
- # Including no sysroot.
- func_replace_sysroot_result=$1
- ;;
- esac
-}
-
-# func_infer_tag arg
-# Infer tagged configuration to use if any are available and
-# if one wasn't chosen via the "--tag" command line option.
-# Only attempt this if the compiler in the base compile
-# command doesn't match the default compiler.
-# arg is usually of the form 'gcc ...'
-func_infer_tag ()
-{
- $debug_cmd
-
- if test -n "$available_tags" && test -z "$tagname"; then
- CC_quoted=
- for arg in $CC; do
- func_append_quoted CC_quoted "$arg"
- done
- CC_expanded=`func_echo_all $CC`
- CC_quoted_expanded=`func_echo_all $CC_quoted`
- case $@ in
- # Blanks in the command may have been stripped by the calling shell,
- # but not from the CC environment variable when configure was run.
- " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
- " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;;
- # Blanks at the start of $base_compile will cause this to fail
- # if we don't check for them as well.
- *)
- for z in $available_tags; do
- if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
- # Evaluate the configuration.
- eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
- CC_quoted=
- for arg in $CC; do
- # Double-quote args containing other shell metacharacters.
- func_append_quoted CC_quoted "$arg"
- done
- CC_expanded=`func_echo_all $CC`
- CC_quoted_expanded=`func_echo_all $CC_quoted`
- case "$@ " in
- " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
- " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*)
- # The compiler in the base compile command matches
- # the one in the tagged configuration.
- # Assume this is the tagged configuration we want.
- tagname=$z
- break
- ;;
- esac
- fi
- done
- # If $tagname still isn't set, then no tagged configuration
- # was found and let the user know that the "--tag" command
- # line option must be used.
- if test -z "$tagname"; then
- func_echo "unable to infer tagged configuration"
- func_fatal_error "specify a tag with '--tag'"
-# else
-# func_verbose "using $tagname tagged configuration"
- fi
- ;;
- esac
- fi
-}
-
-
-
-# func_write_libtool_object output_name pic_name nonpic_name
-# Create a libtool object file (analogous to a ".la" file),
-# but don't create it if we're doing a dry run.
-func_write_libtool_object ()
-{
- write_libobj=$1
- if test yes = "$build_libtool_libs"; then
- write_lobj=\'$2\'
- else
- write_lobj=none
- fi
-
- if test yes = "$build_old_libs"; then
- write_oldobj=\'$3\'
- else
- write_oldobj=none
- fi
-
- $opt_dry_run || {
- cat >${write_libobj}T <<EOF
-# $write_libobj - a libtool object file
-# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object=$write_lobj
-
-# Name of the non-PIC object
-non_pic_object=$write_oldobj
-
-EOF
- $MV "${write_libobj}T" "$write_libobj"
- }
-}
-
-
-##################################################
-# FILE NAME AND PATH CONVERSION HELPER FUNCTIONS #
-##################################################
-
-# func_convert_core_file_wine_to_w32 ARG
-# Helper function used by file name conversion functions when $build is *nix,
-# and $host is mingw, cygwin, or some other w32 environment. Relies on a
-# correctly configured wine environment available, with the winepath program
-# in $build's $PATH.
-#
-# ARG is the $build file name to be converted to w32 format.
-# Result is available in $func_convert_core_file_wine_to_w32_result, and will
-# be empty on error (or when ARG is empty)
-func_convert_core_file_wine_to_w32 ()
-{
- $debug_cmd
-
- func_convert_core_file_wine_to_w32_result=$1
- if test -n "$1"; then
- # Unfortunately, winepath does not exit with a non-zero error code, so we
- # are forced to check the contents of stdout. On the other hand, if the
- # command is not found, the shell will set an exit code of 127 and print
- # *an error message* to stdout. So we must check for both error code of
- # zero AND non-empty stdout, which explains the odd construction:
- func_convert_core_file_wine_to_w32_tmp=`winepath -w "$1" 2>/dev/null`
- if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then
- func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" |
- $SED -e "$sed_naive_backslashify"`
- else
- func_convert_core_file_wine_to_w32_result=
- fi
- fi
-}
-# end: func_convert_core_file_wine_to_w32
-
-
-# func_convert_core_path_wine_to_w32 ARG
-# Helper function used by path conversion functions when $build is *nix, and
-# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly
-# configured wine environment available, with the winepath program in $build's
-# $PATH. Assumes ARG has no leading or trailing path separator characters.
-#
-# ARG is path to be converted from $build format to win32.
-# Result is available in $func_convert_core_path_wine_to_w32_result.
-# Unconvertible file (directory) names in ARG are skipped; if no directory names
-# are convertible, then the result may be empty.
-func_convert_core_path_wine_to_w32 ()
-{
- $debug_cmd
-
- # unfortunately, winepath doesn't convert paths, only file names
- func_convert_core_path_wine_to_w32_result=
- if test -n "$1"; then
- oldIFS=$IFS
- IFS=:
- for func_convert_core_path_wine_to_w32_f in $1; do
- IFS=$oldIFS
- func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f"
- if test -n "$func_convert_core_file_wine_to_w32_result"; then
- if test -z "$func_convert_core_path_wine_to_w32_result"; then
- func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result
- else
- func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result"
- fi
- fi
- done
- IFS=$oldIFS
- fi
-}
-# end: func_convert_core_path_wine_to_w32
-
-
-# func_cygpath ARGS...
-# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when
-# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2)
-# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or
-# (2), returns the Cygwin file name or path in func_cygpath_result (input
-# file name or path is assumed to be in w32 format, as previously converted
-# from $build's *nix or MSYS format). In case (3), returns the w32 file name
-# or path in func_cygpath_result (input file name or path is assumed to be in
-# Cygwin format). Returns an empty string on error.
-#
-# ARGS are passed to cygpath, with the last one being the file name or path to
-# be converted.
-#
-# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH
-# environment variable; do not put it in $PATH.
-func_cygpath ()
-{
- $debug_cmd
-
- if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then
- func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null`
- if test "$?" -ne 0; then
- # on failure, ensure result is empty
- func_cygpath_result=
- fi
- else
- func_cygpath_result=
- func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'"
- fi
-}
-#end: func_cygpath
-
-
-# func_convert_core_msys_to_w32 ARG
-# Convert file name or path ARG from MSYS format to w32 format. Return
-# result in func_convert_core_msys_to_w32_result.
-func_convert_core_msys_to_w32 ()
-{
- $debug_cmd
-
- # awkward: cmd appends spaces to result
- func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null |
- $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"`
-}
-#end: func_convert_core_msys_to_w32
-
-
-# func_convert_file_check ARG1 ARG2
-# Verify that ARG1 (a file name in $build format) was converted to $host
-# format in ARG2. Otherwise, emit an error message, but continue (resetting
-# func_to_host_file_result to ARG1).
-func_convert_file_check ()
-{
- $debug_cmd
-
- if test -z "$2" && test -n "$1"; then
- func_error "Could not determine host file name corresponding to"
- func_error " '$1'"
- func_error "Continuing, but uninstalled executables may not work."
- # Fallback:
- func_to_host_file_result=$1
- fi
-}
-# end func_convert_file_check
-
-
-# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH
-# Verify that FROM_PATH (a path in $build format) was converted to $host
-# format in TO_PATH. Otherwise, emit an error message, but continue, resetting
-# func_to_host_file_result to a simplistic fallback value (see below).
-func_convert_path_check ()
-{
- $debug_cmd
-
- if test -z "$4" && test -n "$3"; then
- func_error "Could not determine the host path corresponding to"
- func_error " '$3'"
- func_error "Continuing, but uninstalled executables may not work."
- # Fallback. This is a deliberately simplistic "conversion" and
- # should not be "improved". See libtool.info.
- if test "x$1" != "x$2"; then
- lt_replace_pathsep_chars="s|$1|$2|g"
- func_to_host_path_result=`echo "$3" |
- $SED -e "$lt_replace_pathsep_chars"`
- else
- func_to_host_path_result=$3
- fi
- fi
-}
-# end func_convert_path_check
-
-
-# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG
-# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT
-# and appending REPL if ORIG matches BACKPAT.
-func_convert_path_front_back_pathsep ()
-{
- $debug_cmd
-
- case $4 in
- $1 ) func_to_host_path_result=$3$func_to_host_path_result
- ;;
- esac
- case $4 in
- $2 ) func_append func_to_host_path_result "$3"
- ;;
- esac
-}
-# end func_convert_path_front_back_pathsep
-
-
-##################################################
-# $build to $host FILE NAME CONVERSION FUNCTIONS #
-##################################################
-# invoked via '$to_host_file_cmd ARG'
-#
-# In each case, ARG is the path to be converted from $build to $host format.
-# Result will be available in $func_to_host_file_result.
-
-
-# func_to_host_file ARG
-# Converts the file name ARG from $build format to $host format. Return result
-# in func_to_host_file_result.
-func_to_host_file ()
-{
- $debug_cmd
-
- $to_host_file_cmd "$1"
-}
-# end func_to_host_file
-
-
-# func_to_tool_file ARG LAZY
-# converts the file name ARG from $build format to toolchain format. Return
-# result in func_to_tool_file_result. If the conversion in use is listed
-# in (the comma separated) LAZY, no conversion takes place.
-func_to_tool_file ()
-{
- $debug_cmd
-
- case ,$2, in
- *,"$to_tool_file_cmd",*)
- func_to_tool_file_result=$1
- ;;
- *)
- $to_tool_file_cmd "$1"
- func_to_tool_file_result=$func_to_host_file_result
- ;;
- esac
-}
-# end func_to_tool_file
-
-
-# func_convert_file_noop ARG
-# Copy ARG to func_to_host_file_result.
-func_convert_file_noop ()
-{
- func_to_host_file_result=$1
-}
-# end func_convert_file_noop
-
-
-# func_convert_file_msys_to_w32 ARG
-# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic
-# conversion to w32 is not available inside the cwrapper. Returns result in
-# func_to_host_file_result.
-func_convert_file_msys_to_w32 ()
-{
- $debug_cmd
-
- func_to_host_file_result=$1
- if test -n "$1"; then
- func_convert_core_msys_to_w32 "$1"
- func_to_host_file_result=$func_convert_core_msys_to_w32_result
- fi
- func_convert_file_check "$1" "$func_to_host_file_result"
-}
-# end func_convert_file_msys_to_w32
-
-
-# func_convert_file_cygwin_to_w32 ARG
-# Convert file name ARG from Cygwin to w32 format. Returns result in
-# func_to_host_file_result.
-func_convert_file_cygwin_to_w32 ()
-{
- $debug_cmd
-
- func_to_host_file_result=$1
- if test -n "$1"; then
- # because $build is cygwin, we call "the" cygpath in $PATH; no need to use
- # LT_CYGPATH in this case.
- func_to_host_file_result=`cygpath -m "$1"`
- fi
- func_convert_file_check "$1" "$func_to_host_file_result"
-}
-# end func_convert_file_cygwin_to_w32
-
-
-# func_convert_file_nix_to_w32 ARG
-# Convert file name ARG from *nix to w32 format. Requires a wine environment
-# and a working winepath. Returns result in func_to_host_file_result.
-func_convert_file_nix_to_w32 ()
-{
- $debug_cmd
-
- func_to_host_file_result=$1
- if test -n "$1"; then
- func_convert_core_file_wine_to_w32 "$1"
- func_to_host_file_result=$func_convert_core_file_wine_to_w32_result
- fi
- func_convert_file_check "$1" "$func_to_host_file_result"
-}
-# end func_convert_file_nix_to_w32
-
-
-# func_convert_file_msys_to_cygwin ARG
-# Convert file name ARG from MSYS to Cygwin format. Requires LT_CYGPATH set.
-# Returns result in func_to_host_file_result.
-func_convert_file_msys_to_cygwin ()
-{
- $debug_cmd
-
- func_to_host_file_result=$1
- if test -n "$1"; then
- func_convert_core_msys_to_w32 "$1"
- func_cygpath -u "$func_convert_core_msys_to_w32_result"
- func_to_host_file_result=$func_cygpath_result
- fi
- func_convert_file_check "$1" "$func_to_host_file_result"
-}
-# end func_convert_file_msys_to_cygwin
-
-
-# func_convert_file_nix_to_cygwin ARG
-# Convert file name ARG from *nix to Cygwin format. Requires Cygwin installed
-# in a wine environment, working winepath, and LT_CYGPATH set. Returns result
-# in func_to_host_file_result.
-func_convert_file_nix_to_cygwin ()
-{
- $debug_cmd
-
- func_to_host_file_result=$1
- if test -n "$1"; then
- # convert from *nix to w32, then use cygpath to convert from w32 to cygwin.
- func_convert_core_file_wine_to_w32 "$1"
- func_cygpath -u "$func_convert_core_file_wine_to_w32_result"
- func_to_host_file_result=$func_cygpath_result
- fi
- func_convert_file_check "$1" "$func_to_host_file_result"
-}
-# end func_convert_file_nix_to_cygwin
-
-
-#############################################
-# $build to $host PATH CONVERSION FUNCTIONS #
-#############################################
-# invoked via '$to_host_path_cmd ARG'
-#
-# In each case, ARG is the path to be converted from $build to $host format.
-# The result will be available in $func_to_host_path_result.
-#
-# Path separators are also converted from $build format to $host format. If
-# ARG begins or ends with a path separator character, it is preserved (but
-# converted to $host format) on output.
-#
-# All path conversion functions are named using the following convention:
-# file name conversion function : func_convert_file_X_to_Y ()
-# path conversion function : func_convert_path_X_to_Y ()
-# where, for any given $build/$host combination the 'X_to_Y' value is the
-# same. If conversion functions are added for new $build/$host combinations,
-# the two new functions must follow this pattern, or func_init_to_host_path_cmd
-# will break.
-
-
-# func_init_to_host_path_cmd
-# Ensures that function "pointer" variable $to_host_path_cmd is set to the
-# appropriate value, based on the value of $to_host_file_cmd.
-to_host_path_cmd=
-func_init_to_host_path_cmd ()
-{
- $debug_cmd
-
- if test -z "$to_host_path_cmd"; then
- func_stripname 'func_convert_file_' '' "$to_host_file_cmd"
- to_host_path_cmd=func_convert_path_$func_stripname_result
- fi
-}
-
-
-# func_to_host_path ARG
-# Converts the path ARG from $build format to $host format. Return result
-# in func_to_host_path_result.
-func_to_host_path ()
-{
- $debug_cmd
-
- func_init_to_host_path_cmd
- $to_host_path_cmd "$1"
-}
-# end func_to_host_path
-
-
-# func_convert_path_noop ARG
-# Copy ARG to func_to_host_path_result.
-func_convert_path_noop ()
-{
- func_to_host_path_result=$1
-}
-# end func_convert_path_noop
-
-
-# func_convert_path_msys_to_w32 ARG
-# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic
-# conversion to w32 is not available inside the cwrapper. Returns result in
-# func_to_host_path_result.
-func_convert_path_msys_to_w32 ()
-{
- $debug_cmd
-
- func_to_host_path_result=$1
- if test -n "$1"; then
- # Remove leading and trailing path separator characters from ARG. MSYS
- # behavior is inconsistent here; cygpath turns them into '.;' and ';.';
- # and winepath ignores them completely.
- func_stripname : : "$1"
- func_to_host_path_tmp1=$func_stripname_result
- func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
- func_to_host_path_result=$func_convert_core_msys_to_w32_result
- func_convert_path_check : ";" \
- "$func_to_host_path_tmp1" "$func_to_host_path_result"
- func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
- fi
-}
-# end func_convert_path_msys_to_w32
-
-
-# func_convert_path_cygwin_to_w32 ARG
-# Convert path ARG from Cygwin to w32 format. Returns result in
-# func_to_host_file_result.
-func_convert_path_cygwin_to_w32 ()
-{
- $debug_cmd
-
- func_to_host_path_result=$1
- if test -n "$1"; then
- # See func_convert_path_msys_to_w32:
- func_stripname : : "$1"
- func_to_host_path_tmp1=$func_stripname_result
- func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"`
- func_convert_path_check : ";" \
- "$func_to_host_path_tmp1" "$func_to_host_path_result"
- func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
- fi
-}
-# end func_convert_path_cygwin_to_w32
-
-
-# func_convert_path_nix_to_w32 ARG
-# Convert path ARG from *nix to w32 format. Requires a wine environment and
-# a working winepath. Returns result in func_to_host_file_result.
-func_convert_path_nix_to_w32 ()
-{
- $debug_cmd
-
- func_to_host_path_result=$1
- if test -n "$1"; then
- # See func_convert_path_msys_to_w32:
- func_stripname : : "$1"
- func_to_host_path_tmp1=$func_stripname_result
- func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
- func_to_host_path_result=$func_convert_core_path_wine_to_w32_result
- func_convert_path_check : ";" \
- "$func_to_host_path_tmp1" "$func_to_host_path_result"
- func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
- fi
-}
-# end func_convert_path_nix_to_w32
-
-
-# func_convert_path_msys_to_cygwin ARG
-# Convert path ARG from MSYS to Cygwin format. Requires LT_CYGPATH set.
-# Returns result in func_to_host_file_result.
-func_convert_path_msys_to_cygwin ()
-{
- $debug_cmd
-
- func_to_host_path_result=$1
- if test -n "$1"; then
- # See func_convert_path_msys_to_w32:
- func_stripname : : "$1"
- func_to_host_path_tmp1=$func_stripname_result
- func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
- func_cygpath -u -p "$func_convert_core_msys_to_w32_result"
- func_to_host_path_result=$func_cygpath_result
- func_convert_path_check : : \
- "$func_to_host_path_tmp1" "$func_to_host_path_result"
- func_convert_path_front_back_pathsep ":*" "*:" : "$1"
- fi
-}
-# end func_convert_path_msys_to_cygwin
-
-
-# func_convert_path_nix_to_cygwin ARG
-# Convert path ARG from *nix to Cygwin format. Requires Cygwin installed in a
-# a wine environment, working winepath, and LT_CYGPATH set. Returns result in
-# func_to_host_file_result.
-func_convert_path_nix_to_cygwin ()
-{
- $debug_cmd
-
- func_to_host_path_result=$1
- if test -n "$1"; then
- # Remove leading and trailing path separator characters from
- # ARG. msys behavior is inconsistent here, cygpath turns them
- # into '.;' and ';.', and winepath ignores them completely.
- func_stripname : : "$1"
- func_to_host_path_tmp1=$func_stripname_result
- func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
- func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result"
- func_to_host_path_result=$func_cygpath_result
- func_convert_path_check : : \
- "$func_to_host_path_tmp1" "$func_to_host_path_result"
- func_convert_path_front_back_pathsep ":*" "*:" : "$1"
- fi
-}
-# end func_convert_path_nix_to_cygwin
-
-
-# func_dll_def_p FILE
-# True iff FILE is a Windows DLL '.def' file.
-# Keep in sync with _LT_DLL_DEF_P in libtool.m4
-func_dll_def_p ()
-{
- $debug_cmd
-
- func_dll_def_p_tmp=`$SED -n \
- -e 's/^[ ]*//' \
- -e '/^\(;.*\)*$/d' \
- -e 's/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p' \
- -e q \
- "$1"`
- test DEF = "$func_dll_def_p_tmp"
-}
-
-
-# func_mode_compile arg...
-func_mode_compile ()
-{
- $debug_cmd
-
- # Get the compilation command and the source file.
- base_compile=
- srcfile=$nonopt # always keep a non-empty value in "srcfile"
- suppress_opt=yes
- suppress_output=
- arg_mode=normal
- libobj=
- later=
- pie_flag=
-
- for arg
- do
- case $arg_mode in
- arg )
- # do not "continue". Instead, add this to base_compile
- lastarg=$arg
- arg_mode=normal
- ;;
-
- target )
- libobj=$arg
- arg_mode=normal
- continue
- ;;
-
- normal )
- # Accept any command-line options.
- case $arg in
- -o)
- test -n "$libobj" && \
- func_fatal_error "you cannot specify '-o' more than once"
- arg_mode=target
- continue
- ;;
-
- -pie | -fpie | -fPIE)
- func_append pie_flag " $arg"
- continue
- ;;
-
- -shared | -static | -prefer-pic | -prefer-non-pic)
- func_append later " $arg"
- continue
- ;;
-
- -no-suppress)
- suppress_opt=no
- continue
- ;;
-
- -Xcompiler)
- arg_mode=arg # the next one goes into the "base_compile" arg list
- continue # The current "srcfile" will either be retained or
- ;; # replaced later. I would guess that would be a bug.
-
- -Wc,*)
- func_stripname '-Wc,' '' "$arg"
- args=$func_stripname_result
- lastarg=
- save_ifs=$IFS; IFS=,
- for arg in $args; do
- IFS=$save_ifs
- func_append_quoted lastarg "$arg"
- done
- IFS=$save_ifs
- func_stripname ' ' '' "$lastarg"
- lastarg=$func_stripname_result
-
- # Add the arguments to base_compile.
- func_append base_compile " $lastarg"
- continue
- ;;
-
- *)
- # Accept the current argument as the source file.
- # The previous "srcfile" becomes the current argument.
- #
- lastarg=$srcfile
- srcfile=$arg
- ;;
- esac # case $arg
- ;;
- esac # case $arg_mode
-
- # Aesthetically quote the previous argument.
- func_append_quoted base_compile "$lastarg"
- done # for arg
-
- case $arg_mode in
- arg)
- func_fatal_error "you must specify an argument for -Xcompile"
- ;;
- target)
- func_fatal_error "you must specify a target with '-o'"
- ;;
- *)
- # Get the name of the library object.
- test -z "$libobj" && {
- func_basename "$srcfile"
- libobj=$func_basename_result
- }
- ;;
- esac
-
- # Recognize several different file suffixes.
- # If the user specifies -o file.o, it is replaced with file.lo
- case $libobj in
- *.[cCFSifmso] | \
- *.ada | *.adb | *.ads | *.asm | \
- *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
- *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup)
- func_xform "$libobj"
- libobj=$func_xform_result
- ;;
- esac
-
- case $libobj in
- *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
- *)
- func_fatal_error "cannot determine name of library object from '$libobj'"
- ;;
- esac
-
- func_infer_tag $base_compile
-
- for arg in $later; do
- case $arg in
- -shared)
- test yes = "$build_libtool_libs" \
- || func_fatal_configuration "cannot build a shared library"
- build_old_libs=no
- continue
- ;;
-
- -static)
- build_libtool_libs=no
- build_old_libs=yes
- continue
- ;;
-
- -prefer-pic)
- pic_mode=yes
- continue
- ;;
-
- -prefer-non-pic)
- pic_mode=no
- continue
- ;;
- esac
- done
-
- func_quote_for_eval "$libobj"
- test "X$libobj" != "X$func_quote_for_eval_result" \
- && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \
- && func_warning "libobj name '$libobj' may not contain shell special characters."
- func_dirname_and_basename "$obj" "/" ""
- objname=$func_basename_result
- xdir=$func_dirname_result
- lobj=$xdir$objdir/$objname
-
- test -z "$base_compile" && \
- func_fatal_help "you must specify a compilation command"
-
- # Delete any leftover library objects.
- if test yes = "$build_old_libs"; then
- removelist="$obj $lobj $libobj ${libobj}T"
- else
- removelist="$lobj $libobj ${libobj}T"
- fi
-
- # On Cygwin there's no "real" PIC flag so we must build both object types
- case $host_os in
- cygwin* | mingw* | pw32* | os2* | cegcc*)
- pic_mode=default
- ;;
- esac
- if test no = "$pic_mode" && test pass_all != "$deplibs_check_method"; then
- # non-PIC code in shared libraries is not supported
- pic_mode=default
- fi
-
- # Calculate the filename of the output object if compiler does
- # not support -o with -c
- if test no = "$compiler_c_o"; then
- output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.$objext
- lockfile=$output_obj.lock
- else
- output_obj=
- need_locks=no
- lockfile=
- fi
-
- # Lock this critical section if it is needed
- # We use this script file to make the link, it avoids creating a new file
- if test yes = "$need_locks"; then
- until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
- func_echo "Waiting for $lockfile to be removed"
- sleep 2
- done
- elif test warn = "$need_locks"; then
- if test -f "$lockfile"; then
- $ECHO "\
-*** ERROR, $lockfile exists and contains:
-`cat $lockfile 2>/dev/null`
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support '-c' and '-o' together. If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
- $opt_dry_run || $RM $removelist
- exit $EXIT_FAILURE
- fi
- func_append removelist " $output_obj"
- $ECHO "$srcfile" > "$lockfile"
- fi
-
- $opt_dry_run || $RM $removelist
- func_append removelist " $lockfile"
- trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15
-
- func_to_tool_file "$srcfile" func_convert_file_msys_to_w32
- srcfile=$func_to_tool_file_result
- func_quote_for_eval "$srcfile"
- qsrcfile=$func_quote_for_eval_result
-
- # Only build a PIC object if we are building libtool libraries.
- if test yes = "$build_libtool_libs"; then
- # Without this assignment, base_compile gets emptied.
- fbsd_hideous_sh_bug=$base_compile
-
- if test no != "$pic_mode"; then
- command="$base_compile $qsrcfile $pic_flag"
- else
- # Don't build PIC code
- command="$base_compile $qsrcfile"
- fi
-
- func_mkdir_p "$xdir$objdir"
-
- if test -z "$output_obj"; then
- # Place PIC objects in $objdir
- func_append command " -o $lobj"
- fi
-
- func_show_eval_locale "$command" \
- 'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'
-
- if test warn = "$need_locks" &&
- test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
- $ECHO "\
-*** ERROR, $lockfile contains:
-`cat $lockfile 2>/dev/null`
-
-but it should contain:
-$srcfile
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support '-c' and '-o' together. If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
- $opt_dry_run || $RM $removelist
- exit $EXIT_FAILURE
- fi
-
- # Just move the object if needed, then go on to compile the next one
- if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then
- func_show_eval '$MV "$output_obj" "$lobj"' \
- 'error=$?; $opt_dry_run || $RM $removelist; exit $error'
- fi
-
- # Allow error messages only from the first compilation.
- if test yes = "$suppress_opt"; then
- suppress_output=' >/dev/null 2>&1'
- fi
- fi
-
- # Only build a position-dependent object if we build old libraries.
- if test yes = "$build_old_libs"; then
- if test yes != "$pic_mode"; then
- # Don't build PIC code
- command="$base_compile $qsrcfile$pie_flag"
- else
- command="$base_compile $qsrcfile $pic_flag"
- fi
- if test yes = "$compiler_c_o"; then
- func_append command " -o $obj"
- fi
-
- # Suppress compiler output if we already did a PIC compilation.
- func_append command "$suppress_output"
- func_show_eval_locale "$command" \
- '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'
-
- if test warn = "$need_locks" &&
- test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
- $ECHO "\
-*** ERROR, $lockfile contains:
-`cat $lockfile 2>/dev/null`
-
-but it should contain:
-$srcfile
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support '-c' and '-o' together. If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
- $opt_dry_run || $RM $removelist
- exit $EXIT_FAILURE
- fi
-
- # Just move the object if needed
- if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then
- func_show_eval '$MV "$output_obj" "$obj"' \
- 'error=$?; $opt_dry_run || $RM $removelist; exit $error'
- fi
- fi
-
- $opt_dry_run || {
- func_write_libtool_object "$libobj" "$objdir/$objname" "$objname"
-
- # Unlock the critical section if it was locked
- if test no != "$need_locks"; then
- removelist=$lockfile
- $RM "$lockfile"
- fi
- }
-
- exit $EXIT_SUCCESS
-}
-
-$opt_help || {
- test compile = "$opt_mode" && func_mode_compile ${1+"$@"}
-}
-
-func_mode_help ()
-{
- # We need to display help for each of the modes.
- case $opt_mode in
- "")
- # Generic help is extracted from the usage comments
- # at the start of this file.
- func_help
- ;;
-
- clean)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE...
-
-Remove files from the build directory.
-
-RM is the name of the program to use to delete files associated with each FILE
-(typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed
-to RM.
-
-If FILE is a libtool library, object or program, all the files associated
-with it are deleted. Otherwise, only FILE itself is deleted using RM."
- ;;
-
- compile)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE
-
-Compile a source file into a libtool library object.
-
-This mode accepts the following additional options:
-
- -o OUTPUT-FILE set the output file name to OUTPUT-FILE
- -no-suppress do not suppress compiler output for multiple passes
- -prefer-pic try to build PIC objects only
- -prefer-non-pic try to build non-PIC objects only
- -shared do not build a '.o' file suitable for static linking
- -static only build a '.o' file suitable for static linking
- -Wc,FLAG pass FLAG directly to the compiler
-
-COMPILE-COMMAND is a command to be used in creating a 'standard' object file
-from the given SOURCEFILE.
-
-The output file name is determined by removing the directory component from
-SOURCEFILE, then substituting the C source code suffix '.c' with the
-library object suffix, '.lo'."
- ;;
-
- execute)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]...
-
-Automatically set library path, then run a program.
-
-This mode accepts the following additional options:
-
- -dlopen FILE add the directory containing FILE to the library path
-
-This mode sets the library path environment variable according to '-dlopen'
-flags.
-
-If any of the ARGS are libtool executable wrappers, then they are translated
-into their corresponding uninstalled binary, and any of their required library
-directories are added to the library path.
-
-Then, COMMAND is executed, with ARGS as arguments."
- ;;
-
- finish)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=finish [LIBDIR]...
-
-Complete the installation of libtool libraries.
-
-Each LIBDIR is a directory that contains libtool libraries.
-
-The commands that this mode executes may require superuser privileges. Use
-the '--dry-run' option if you just want to see what would be executed."
- ;;
-
- install)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND...
-
-Install executables or libraries.
-
-INSTALL-COMMAND is the installation command. The first component should be
-either the 'install' or 'cp' program.
-
-The following components of INSTALL-COMMAND are treated specially:
-
- -inst-prefix-dir PREFIX-DIR Use PREFIX-DIR as a staging area for installation
-
-The rest of the components are interpreted as arguments to that command (only
-BSD-compatible install options are recognized)."
- ;;
-
- link)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=link LINK-COMMAND...
-
-Link object files or libraries together to form another library, or to
-create an executable program.
-
-LINK-COMMAND is a command using the C compiler that you would use to create
-a program from several object files.
-
-The following components of LINK-COMMAND are treated specially:
-
- -all-static do not do any dynamic linking at all
- -avoid-version do not add a version suffix if possible
- -bindir BINDIR specify path to binaries directory (for systems where
- libraries must be found in the PATH setting at runtime)
- -dlopen FILE '-dlpreopen' FILE if it cannot be dlopened at runtime
- -dlpreopen FILE link in FILE and add its symbols to lt_preloaded_symbols
- -export-dynamic allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
- -export-symbols SYMFILE
- try to export only the symbols listed in SYMFILE
- -export-symbols-regex REGEX
- try to export only the symbols matching REGEX
- -LLIBDIR search LIBDIR for required installed libraries
- -lNAME OUTPUT-FILE requires the installed library libNAME
- -module build a library that can dlopened
- -no-fast-install disable the fast-install mode
- -no-install link a not-installable executable
- -no-undefined declare that a library does not refer to external symbols
- -o OUTPUT-FILE create OUTPUT-FILE from the specified objects
- -objectlist FILE use a list of object files found in FILE to specify objects
- -os2dllname NAME force a short DLL name on OS/2 (no effect on other OSes)
- -precious-files-regex REGEX
- don't remove output files matching REGEX
- -release RELEASE specify package release information
- -rpath LIBDIR the created library will eventually be installed in LIBDIR
- -R[ ]LIBDIR add LIBDIR to the runtime path of programs and libraries
- -shared only do dynamic linking of libtool libraries
- -shrext SUFFIX override the standard shared library file extension
- -static do not do any dynamic linking of uninstalled libtool libraries
- -static-libtool-libs
- do not do any dynamic linking of libtool libraries
- -version-info CURRENT[:REVISION[:AGE]]
- specify library version info [each variable defaults to 0]
- -weak LIBNAME declare that the target provides the LIBNAME interface
- -Wc,FLAG
- -Xcompiler FLAG pass linker-specific FLAG directly to the compiler
- -Wl,FLAG
- -Xlinker FLAG pass linker-specific FLAG directly to the linker
- -XCClinker FLAG pass link-specific FLAG to the compiler driver (CC)
-
-All other options (arguments beginning with '-') are ignored.
-
-Every other argument is treated as a filename. Files ending in '.la' are
-treated as uninstalled libtool libraries, other files are standard or library
-object files.
-
-If the OUTPUT-FILE ends in '.la', then a libtool library is created,
-only library objects ('.lo' files) may be specified, and '-rpath' is
-required, except when creating a convenience library.
-
-If OUTPUT-FILE ends in '.a' or '.lib', then a standard library is created
-using 'ar' and 'ranlib', or on Windows using 'lib'.
-
-If OUTPUT-FILE ends in '.lo' or '.$objext', then a reloadable object file
-is created, otherwise an executable program is created."
- ;;
-
- uninstall)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE...
-
-Remove libraries from an installation directory.
-
-RM is the name of the program to use to delete files associated with each FILE
-(typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed
-to RM.
-
-If FILE is a libtool library, all the files associated with it are deleted.
-Otherwise, only FILE itself is deleted using RM."
- ;;
-
- *)
- func_fatal_help "invalid operation mode '$opt_mode'"
- ;;
- esac
-
- echo
- $ECHO "Try '$progname --help' for more information about other modes."
-}
-
-# Now that we've collected a possible --mode arg, show help if necessary
-if $opt_help; then
- if test : = "$opt_help"; then
- func_mode_help
- else
- {
- func_help noexit
- for opt_mode in compile link execute install finish uninstall clean; do
- func_mode_help
- done
- } | $SED -n '1p; 2,$s/^Usage:/ or: /p'
- {
- func_help noexit
- for opt_mode in compile link execute install finish uninstall clean; do
- echo
- func_mode_help
- done
- } |
- $SED '1d
- /^When reporting/,/^Report/{
- H
- d
- }
- $x
- /information about other modes/d
- /more detailed .*MODE/d
- s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/'
- fi
- exit $?
-fi
-
-
-# func_mode_execute arg...
-func_mode_execute ()
-{
- $debug_cmd
-
- # The first argument is the command name.
- cmd=$nonopt
- test -z "$cmd" && \
- func_fatal_help "you must specify a COMMAND"
-
- # Handle -dlopen flags immediately.
- for file in $opt_dlopen; do
- test -f "$file" \
- || func_fatal_help "'$file' is not a file"
-
- dir=
- case $file in
- *.la)
- func_resolve_sysroot "$file"
- file=$func_resolve_sysroot_result
-
- # Check to see that this really is a libtool archive.
- func_lalib_unsafe_p "$file" \
- || func_fatal_help "'$lib' is not a valid libtool archive"
-
- # Read the libtool library.
- dlname=
- library_names=
- func_source "$file"
-
- # Skip this library if it cannot be dlopened.
- if test -z "$dlname"; then
- # Warn if it was a shared library.
- test -n "$library_names" && \
- func_warning "'$file' was not linked with '-export-dynamic'"
- continue
- fi
-
- func_dirname "$file" "" "."
- dir=$func_dirname_result
-
- if test -f "$dir/$objdir/$dlname"; then
- func_append dir "/$objdir"
- else
- if test ! -f "$dir/$dlname"; then
- func_fatal_error "cannot find '$dlname' in '$dir' or '$dir/$objdir'"
- fi
- fi
- ;;
-
- *.lo)
- # Just add the directory containing the .lo file.
- func_dirname "$file" "" "."
- dir=$func_dirname_result
- ;;
-
- *)
- func_warning "'-dlopen' is ignored for non-libtool libraries and objects"
- continue
- ;;
- esac
-
- # Get the absolute pathname.
- absdir=`cd "$dir" && pwd`
- test -n "$absdir" && dir=$absdir
-
- # Now add the directory to shlibpath_var.
- if eval "test -z \"\$$shlibpath_var\""; then
- eval "$shlibpath_var=\"\$dir\""
- else
- eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
- fi
- done
-
- # This variable tells wrapper scripts just to set shlibpath_var
- # rather than running their programs.
- libtool_execute_magic=$magic
-
- # Check if any of the arguments is a wrapper script.
- args=
- for file
- do
- case $file in
- -* | *.la | *.lo ) ;;
- *)
- # Do a test to see if this is really a libtool program.
- if func_ltwrapper_script_p "$file"; then
- func_source "$file"
- # Transform arg to wrapped name.
- file=$progdir/$program
- elif func_ltwrapper_executable_p "$file"; then
- func_ltwrapper_scriptname "$file"
- func_source "$func_ltwrapper_scriptname_result"
- # Transform arg to wrapped name.
- file=$progdir/$program
- fi
- ;;
- esac
- # Quote arguments (to preserve shell metacharacters).
- func_append_quoted args "$file"
- done
-
- if $opt_dry_run; then
- # Display what would be done.
- if test -n "$shlibpath_var"; then
- eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
- echo "export $shlibpath_var"
- fi
- $ECHO "$cmd$args"
- exit $EXIT_SUCCESS
- else
- if test -n "$shlibpath_var"; then
- # Export the shlibpath_var.
- eval "export $shlibpath_var"
- fi
-
- # Restore saved environment variables
- for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
- do
- eval "if test \"\${save_$lt_var+set}\" = set; then
- $lt_var=\$save_$lt_var; export $lt_var
- else
- $lt_unset $lt_var
- fi"
- done
-
- # Now prepare to actually exec the command.
- exec_cmd=\$cmd$args
- fi
-}
-
-test execute = "$opt_mode" && func_mode_execute ${1+"$@"}
-
-
-# func_mode_finish arg...
-func_mode_finish ()
-{
- $debug_cmd
-
- libs=
- libdirs=
- admincmds=
-
- for opt in "$nonopt" ${1+"$@"}
- do
- if test -d "$opt"; then
- func_append libdirs " $opt"
-
- elif test -f "$opt"; then
- if func_lalib_unsafe_p "$opt"; then
- func_append libs " $opt"
- else
- func_warning "'$opt' is not a valid libtool archive"
- fi
-
- else
- func_fatal_error "invalid argument '$opt'"
- fi
- done
-
- if test -n "$libs"; then
- if test -n "$lt_sysroot"; then
- sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"`
- sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;"
- else
- sysroot_cmd=
- fi
-
- # Remove sysroot references
- if $opt_dry_run; then
- for lib in $libs; do
- echo "removing references to $lt_sysroot and '=' prefixes from $lib"
- done
- else
- tmpdir=`func_mktempdir`
- for lib in $libs; do
- $SED -e "$sysroot_cmd s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \
- > $tmpdir/tmp-la
- mv -f $tmpdir/tmp-la $lib
- done
- ${RM}r "$tmpdir"
- fi
- fi
-
- if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
- for libdir in $libdirs; do
- if test -n "$finish_cmds"; then
- # Do each command in the finish commands.
- func_execute_cmds "$finish_cmds" 'admincmds="$admincmds
-'"$cmd"'"'
- fi
- if test -n "$finish_eval"; then
- # Do the single finish_eval.
- eval cmds=\"$finish_eval\"
- $opt_dry_run || eval "$cmds" || func_append admincmds "
- $cmds"
- fi
- done
- fi
-
- # Exit here if they wanted silent mode.
- $opt_quiet && exit $EXIT_SUCCESS
-
- if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
- echo "----------------------------------------------------------------------"
- echo "Libraries have been installed in:"
- for libdir in $libdirs; do
- $ECHO " $libdir"
- done
- echo
- echo "If you ever happen to want to link against installed libraries"
- echo "in a given directory, LIBDIR, you must either use libtool, and"
- echo "specify the full pathname of the library, or use the '-LLIBDIR'"
- echo "flag during linking and do at least one of the following:"
- if test -n "$shlibpath_var"; then
- echo " - add LIBDIR to the '$shlibpath_var' environment variable"
- echo " during execution"
- fi
- if test -n "$runpath_var"; then
- echo " - add LIBDIR to the '$runpath_var' environment variable"
- echo " during linking"
- fi
- if test -n "$hardcode_libdir_flag_spec"; then
- libdir=LIBDIR
- eval flag=\"$hardcode_libdir_flag_spec\"
-
- $ECHO " - use the '$flag' linker flag"
- fi
- if test -n "$admincmds"; then
- $ECHO " - have your system administrator run these commands:$admincmds"
- fi
- if test -f /etc/ld.so.conf; then
- echo " - have your system administrator add LIBDIR to '/etc/ld.so.conf'"
- fi
- echo
-
- echo "See any operating system documentation about shared libraries for"
- case $host in
- solaris2.[6789]|solaris2.1[0-9])
- echo "more information, such as the ld(1), crle(1) and ld.so(8) manual"
- echo "pages."
- ;;
- *)
- echo "more information, such as the ld(1) and ld.so(8) manual pages."
- ;;
- esac
- echo "----------------------------------------------------------------------"
- fi
- exit $EXIT_SUCCESS
-}
-
-test finish = "$opt_mode" && func_mode_finish ${1+"$@"}
-
-
-# func_mode_install arg...
-func_mode_install ()
-{
- $debug_cmd
-
- # There may be an optional sh(1) argument at the beginning of
- # install_prog (especially on Windows NT).
- if test "$SHELL" = "$nonopt" || test /bin/sh = "$nonopt" ||
- # Allow the use of GNU shtool's install command.
- case $nonopt in *shtool*) :;; *) false;; esac
- then
- # Aesthetically quote it.
- func_quote_for_eval "$nonopt"
- install_prog="$func_quote_for_eval_result "
- arg=$1
- shift
- else
- install_prog=
- arg=$nonopt
- fi
-
- # The real first argument should be the name of the installation program.
- # Aesthetically quote it.
- func_quote_for_eval "$arg"
- func_append install_prog "$func_quote_for_eval_result"
- install_shared_prog=$install_prog
- case " $install_prog " in
- *[\\\ /]cp\ *) install_cp=: ;;
- *) install_cp=false ;;
- esac
-
- # We need to accept at least all the BSD install flags.
- dest=
- files=
- opts=
- prev=
- install_type=
- isdir=false
- stripme=
- no_mode=:
- for arg
- do
- arg2=
- if test -n "$dest"; then
- func_append files " $dest"
- dest=$arg
- continue
- fi
-
- case $arg in
- -d) isdir=: ;;
- -f)
- if $install_cp; then :; else
- prev=$arg
- fi
- ;;
- -g | -m | -o)
- prev=$arg
- ;;
- -s)
- stripme=" -s"
- continue
- ;;
- -*)
- ;;
- *)
- # If the previous option needed an argument, then skip it.
- if test -n "$prev"; then
- if test X-m = "X$prev" && test -n "$install_override_mode"; then
- arg2=$install_override_mode
- no_mode=false
- fi
- prev=
- else
- dest=$arg
- continue
- fi
- ;;
- esac
-
- # Aesthetically quote the argument.
- func_quote_for_eval "$arg"
- func_append install_prog " $func_quote_for_eval_result"
- if test -n "$arg2"; then
- func_quote_for_eval "$arg2"
- fi
- func_append install_shared_prog " $func_quote_for_eval_result"
- done
-
- test -z "$install_prog" && \
- func_fatal_help "you must specify an install program"
-
- test -n "$prev" && \
- func_fatal_help "the '$prev' option requires an argument"
-
- if test -n "$install_override_mode" && $no_mode; then
- if $install_cp; then :; else
- func_quote_for_eval "$install_override_mode"
- func_append install_shared_prog " -m $func_quote_for_eval_result"
- fi
- fi
-
- if test -z "$files"; then
- if test -z "$dest"; then
- func_fatal_help "no file or destination specified"
- else
- func_fatal_help "you must specify a destination"
- fi
- fi
-
- # Strip any trailing slash from the destination.
- func_stripname '' '/' "$dest"
- dest=$func_stripname_result
-
- # Check to see that the destination is a directory.
- test -d "$dest" && isdir=:
- if $isdir; then
- destdir=$dest
- destname=
- else
- func_dirname_and_basename "$dest" "" "."
- destdir=$func_dirname_result
- destname=$func_basename_result
-
- # Not a directory, so check to see that there is only one file specified.
- set dummy $files; shift
- test "$#" -gt 1 && \
- func_fatal_help "'$dest' is not a directory"
- fi
- case $destdir in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- for file in $files; do
- case $file in
- *.lo) ;;
- *)
- func_fatal_help "'$destdir' must be an absolute directory name"
- ;;
- esac
- done
- ;;
- esac
-
- # This variable tells wrapper scripts just to set variables rather
- # than running their programs.
- libtool_install_magic=$magic
-
- staticlibs=
- future_libdirs=
- current_libdirs=
- for file in $files; do
-
- # Do each installation.
- case $file in
- *.$libext)
- # Do the static libraries later.
- func_append staticlibs " $file"
- ;;
-
- *.la)
- func_resolve_sysroot "$file"
- file=$func_resolve_sysroot_result
-
- # Check to see that this really is a libtool archive.
- func_lalib_unsafe_p "$file" \
- || func_fatal_help "'$file' is not a valid libtool archive"
-
- library_names=
- old_library=
- relink_command=
- func_source "$file"
-
- # Add the libdir to current_libdirs if it is the destination.
- if test "X$destdir" = "X$libdir"; then
- case "$current_libdirs " in
- *" $libdir "*) ;;
- *) func_append current_libdirs " $libdir" ;;
- esac
- else
- # Note the libdir as a future libdir.
- case "$future_libdirs " in
- *" $libdir "*) ;;
- *) func_append future_libdirs " $libdir" ;;
- esac
- fi
-
- func_dirname "$file" "/" ""
- dir=$func_dirname_result
- func_append dir "$objdir"
-
- if test -n "$relink_command"; then
- # Determine the prefix the user has applied to our future dir.
- inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"`
-
- # Don't allow the user to place us outside of our expected
- # location b/c this prevents finding dependent libraries that
- # are installed to the same prefix.
- # At present, this check doesn't affect windows .dll's that
- # are installed into $libdir/../bin (currently, that works fine)
- # but it's something to keep an eye on.
- test "$inst_prefix_dir" = "$destdir" && \
- func_fatal_error "error: cannot install '$file' to a directory not ending in $libdir"
-
- if test -n "$inst_prefix_dir"; then
- # Stick the inst_prefix_dir data into the link command.
- relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"`
- else
- relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"`
- fi
-
- func_warning "relinking '$file'"
- func_show_eval "$relink_command" \
- 'func_fatal_error "error: relink '\''$file'\'' with the above command before installing it"'
- fi
-
- # See the names of the shared library.
- set dummy $library_names; shift
- if test -n "$1"; then
- realname=$1
- shift
-
- srcname=$realname
- test -n "$relink_command" && srcname=${realname}T
-
- # Install the shared library and build the symlinks.
- func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \
- 'exit $?'
- tstripme=$stripme
- case $host_os in
- cygwin* | mingw* | pw32* | cegcc*)
- case $realname in
- *.dll.a)
- tstripme=
- ;;
- esac
- ;;
- os2*)
- case $realname in
- *_dll.a)
- tstripme=
- ;;
- esac
- ;;
- esac
- if test -n "$tstripme" && test -n "$striplib"; then
- func_show_eval "$striplib $destdir/$realname" 'exit $?'
- fi
-
- if test "$#" -gt 0; then
- # Delete the old symlinks, and create new ones.
- # Try 'ln -sf' first, because the 'ln' binary might depend on
- # the symlink we replace! Solaris /bin/ln does not understand -f,
- # so we also need to try rm && ln -s.
- for linkname
- do
- test "$linkname" != "$realname" \
- && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })"
- done
- fi
-
- # Do each command in the postinstall commands.
- lib=$destdir/$realname
- func_execute_cmds "$postinstall_cmds" 'exit $?'
- fi
-
- # Install the pseudo-library for information purposes.
- func_basename "$file"
- name=$func_basename_result
- instname=$dir/${name}i
- func_show_eval "$install_prog $instname $destdir/$name" 'exit $?'
-
- # Maybe install the static library, too.
- test -n "$old_library" && func_append staticlibs " $dir/$old_library"
- ;;
-
- *.lo)
- # Install (i.e. copy) a libtool object.
-
- # Figure out destination file name, if it wasn't already specified.
- if test -n "$destname"; then
- destfile=$destdir/$destname
- else
- func_basename "$file"
- destfile=$func_basename_result
- destfile=$destdir/$destfile
- fi
-
- # Deduce the name of the destination old-style object file.
- case $destfile in
- *.lo)
- func_lo2o "$destfile"
- staticdest=$func_lo2o_result
- ;;
- *.$objext)
- staticdest=$destfile
- destfile=
- ;;
- *)
- func_fatal_help "cannot copy a libtool object to '$destfile'"
- ;;
- esac
-
- # Install the libtool object if requested.
- test -n "$destfile" && \
- func_show_eval "$install_prog $file $destfile" 'exit $?'
-
- # Install the old object if enabled.
- if test yes = "$build_old_libs"; then
- # Deduce the name of the old-style object file.
- func_lo2o "$file"
- staticobj=$func_lo2o_result
- func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?'
- fi
- exit $EXIT_SUCCESS
- ;;
-
- *)
- # Figure out destination file name, if it wasn't already specified.
- if test -n "$destname"; then
- destfile=$destdir/$destname
- else
- func_basename "$file"
- destfile=$func_basename_result
- destfile=$destdir/$destfile
- fi
-
- # If the file is missing, and there is a .exe on the end, strip it
- # because it is most likely a libtool script we actually want to
- # install
- stripped_ext=
- case $file in
- *.exe)
- if test ! -f "$file"; then
- func_stripname '' '.exe' "$file"
- file=$func_stripname_result
- stripped_ext=.exe
- fi
- ;;
- esac
-
- # Do a test to see if this is really a libtool program.
- case $host in
- *cygwin* | *mingw*)
- if func_ltwrapper_executable_p "$file"; then
- func_ltwrapper_scriptname "$file"
- wrapper=$func_ltwrapper_scriptname_result
- else
- func_stripname '' '.exe' "$file"
- wrapper=$func_stripname_result
- fi
- ;;
- *)
- wrapper=$file
- ;;
- esac
- if func_ltwrapper_script_p "$wrapper"; then
- notinst_deplibs=
- relink_command=
-
- func_source "$wrapper"
-
- # Check the variables that should have been set.
- test -z "$generated_by_libtool_version" && \
- func_fatal_error "invalid libtool wrapper script '$wrapper'"
-
- finalize=:
- for lib in $notinst_deplibs; do
- # Check to see that each library is installed.
- libdir=
- if test -f "$lib"; then
- func_source "$lib"
- fi
- libfile=$libdir/`$ECHO "$lib" | $SED 's%^.*/%%g'`
- if test -n "$libdir" && test ! -f "$libfile"; then
- func_warning "'$lib' has not been installed in '$libdir'"
- finalize=false
- fi
- done
-
- relink_command=
- func_source "$wrapper"
-
- outputname=
- if test no = "$fast_install" && test -n "$relink_command"; then
- $opt_dry_run || {
- if $finalize; then
- tmpdir=`func_mktempdir`
- func_basename "$file$stripped_ext"
- file=$func_basename_result
- outputname=$tmpdir/$file
- # Replace the output file specification.
- relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'`
-
- $opt_quiet || {
- func_quote_for_expand "$relink_command"
- eval "func_echo $func_quote_for_expand_result"
- }
- if eval "$relink_command"; then :
- else
- func_error "error: relink '$file' with the above command before installing it"
- $opt_dry_run || ${RM}r "$tmpdir"
- continue
- fi
- file=$outputname
- else
- func_warning "cannot relink '$file'"
- fi
- }
- else
- # Install the binary that we compiled earlier.
- file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"`
- fi
- fi
-
- # remove .exe since cygwin /usr/bin/install will append another
- # one anyway
- case $install_prog,$host in
- */usr/bin/install*,*cygwin*)
- case $file:$destfile in
- *.exe:*.exe)
- # this is ok
- ;;
- *.exe:*)
- destfile=$destfile.exe
- ;;
- *:*.exe)
- func_stripname '' '.exe' "$destfile"
- destfile=$func_stripname_result
- ;;
- esac
- ;;
- esac
- func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?'
- $opt_dry_run || if test -n "$outputname"; then
- ${RM}r "$tmpdir"
- fi
- ;;
- esac
- done
-
- for file in $staticlibs; do
- func_basename "$file"
- name=$func_basename_result
-
- # Set up the ranlib parameters.
- oldlib=$destdir/$name
- func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
- tool_oldlib=$func_to_tool_file_result
-
- func_show_eval "$install_prog \$file \$oldlib" 'exit $?'
-
- if test -n "$stripme" && test -n "$old_striplib"; then
- func_show_eval "$old_striplib $tool_oldlib" 'exit $?'
- fi
-
- # Do each command in the postinstall commands.
- func_execute_cmds "$old_postinstall_cmds" 'exit $?'
- done
-
- test -n "$future_libdirs" && \
- func_warning "remember to run '$progname --finish$future_libdirs'"
-
- if test -n "$current_libdirs"; then
- # Maybe just do a dry run.
- $opt_dry_run && current_libdirs=" -n$current_libdirs"
- exec_cmd='$SHELL "$progpath" $preserve_args --finish$current_libdirs'
- else
- exit $EXIT_SUCCESS
- fi
-}
-
-test install = "$opt_mode" && func_mode_install ${1+"$@"}
-
-
-# func_generate_dlsyms outputname originator pic_p
-# Extract symbols from dlprefiles and create ${outputname}S.o with
-# a dlpreopen symbol table.
-func_generate_dlsyms ()
-{
- $debug_cmd
-
- my_outputname=$1
- my_originator=$2
- my_pic_p=${3-false}
- my_prefix=`$ECHO "$my_originator" | $SED 's%[^a-zA-Z0-9]%_%g'`
- my_dlsyms=
-
- if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
- if test -n "$NM" && test -n "$global_symbol_pipe"; then
- my_dlsyms=${my_outputname}S.c
- else
- func_error "not configured to extract global symbols from dlpreopened files"
- fi
- fi
-
- if test -n "$my_dlsyms"; then
- case $my_dlsyms in
- "") ;;
- *.c)
- # Discover the nlist of each of the dlfiles.
- nlist=$output_objdir/$my_outputname.nm
-
- func_show_eval "$RM $nlist ${nlist}S ${nlist}T"
-
- # Parse the name list into a source file.
- func_verbose "creating $output_objdir/$my_dlsyms"
-
- $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\
-/* $my_dlsyms - symbol resolution table for '$my_outputname' dlsym emulation. */
-/* Generated by $PROGRAM (GNU $PACKAGE) $VERSION */
-
-#ifdef __cplusplus
-extern \"C\" {
-#endif
-
-#if defined __GNUC__ && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4))
-#pragma GCC diagnostic ignored \"-Wstrict-prototypes\"
-#endif
-
-/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */
-#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
-/* DATA imports from DLLs on WIN32 can't be const, because runtime
- relocations are performed -- see ld's documentation on pseudo-relocs. */
-# define LT_DLSYM_CONST
-#elif defined __osf__
-/* This system does not cope well with relocations in const data. */
-# define LT_DLSYM_CONST
-#else
-# define LT_DLSYM_CONST const
-#endif
-
-#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0)
-
-/* External symbol declarations for the compiler. */\
-"
-
- if test yes = "$dlself"; then
- func_verbose "generating symbol list for '$output'"
-
- $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist"
-
- # Add our own program objects to the symbol list.
- progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP`
- for progfile in $progfiles; do
- func_to_tool_file "$progfile" func_convert_file_msys_to_w32
- func_verbose "extracting global C symbols from '$func_to_tool_file_result'"
- $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'"
- done
-
- if test -n "$exclude_expsyms"; then
- $opt_dry_run || {
- eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T'
- eval '$MV "$nlist"T "$nlist"'
- }
- fi
-
- if test -n "$export_symbols_regex"; then
- $opt_dry_run || {
- eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T'
- eval '$MV "$nlist"T "$nlist"'
- }
- fi
-
- # Prepare the list of exported symbols
- if test -z "$export_symbols"; then
- export_symbols=$output_objdir/$outputname.exp
- $opt_dry_run || {
- $RM $export_symbols
- eval "$SED -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
- eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"'
- ;;
- esac
- }
- else
- $opt_dry_run || {
- eval "$SED -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
- eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T'
- eval '$MV "$nlist"T "$nlist"'
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
- eval 'cat "$nlist" >> "$output_objdir/$outputname.def"'
- ;;
- esac
- }
- fi
- fi
-
- for dlprefile in $dlprefiles; do
- func_verbose "extracting global C symbols from '$dlprefile'"
- func_basename "$dlprefile"
- name=$func_basename_result
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- # if an import library, we need to obtain dlname
- if func_win32_import_lib_p "$dlprefile"; then
- func_tr_sh "$dlprefile"
- eval "curr_lafile=\$libfile_$func_tr_sh_result"
- dlprefile_dlbasename=
- if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then
- # Use subshell, to avoid clobbering current variable values
- dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"`
- if test -n "$dlprefile_dlname"; then
- func_basename "$dlprefile_dlname"
- dlprefile_dlbasename=$func_basename_result
- else
- # no lafile. user explicitly requested -dlpreopen <import library>.
- $sharedlib_from_linklib_cmd "$dlprefile"
- dlprefile_dlbasename=$sharedlib_from_linklib_result
- fi
- fi
- $opt_dry_run || {
- if test -n "$dlprefile_dlbasename"; then
- eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"'
- else
- func_warning "Could not compute DLL name from $name"
- eval '$ECHO ": $name " >> "$nlist"'
- fi
- func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
- eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe |
- $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'"
- }
- else # not an import lib
- $opt_dry_run || {
- eval '$ECHO ": $name " >> "$nlist"'
- func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
- eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
- }
- fi
- ;;
- *)
- $opt_dry_run || {
- eval '$ECHO ": $name " >> "$nlist"'
- func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
- eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
- }
- ;;
- esac
- done
-
- $opt_dry_run || {
- # Make sure we have at least an empty file.
- test -f "$nlist" || : > "$nlist"
-
- if test -n "$exclude_expsyms"; then
- $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T
- $MV "$nlist"T "$nlist"
- fi
-
- # Try sorting and uniquifying the output.
- if $GREP -v "^: " < "$nlist" |
- if sort -k 3 </dev/null >/dev/null 2>&1; then
- sort -k 3
- else
- sort +2
- fi |
- uniq > "$nlist"S; then
- :
- else
- $GREP -v "^: " < "$nlist" > "$nlist"S
- fi
-
- if test -f "$nlist"S; then
- eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"'
- else
- echo '/* NONE */' >> "$output_objdir/$my_dlsyms"
- fi
-
- func_show_eval '$RM "${nlist}I"'
- if test -n "$global_symbol_to_import"; then
- eval "$global_symbol_to_import"' < "$nlist"S > "$nlist"I'
- fi
-
- echo >> "$output_objdir/$my_dlsyms" "\
-
-/* The mapping between symbol names and symbols. */
-typedef struct {
- const char *name;
- void *address;
-} lt_dlsymlist;
-extern LT_DLSYM_CONST lt_dlsymlist
-lt_${my_prefix}_LTX_preloaded_symbols[];\
-"
-
- if test -s "$nlist"I; then
- echo >> "$output_objdir/$my_dlsyms" "\
-static void lt_syminit(void)
-{
- LT_DLSYM_CONST lt_dlsymlist *symbol = lt_${my_prefix}_LTX_preloaded_symbols;
- for (; symbol->name; ++symbol)
- {"
- $SED 's/.*/ if (STREQ (symbol->name, \"&\")) symbol->address = (void *) \&&;/' < "$nlist"I >> "$output_objdir/$my_dlsyms"
- echo >> "$output_objdir/$my_dlsyms" "\
- }
-}"
- fi
- echo >> "$output_objdir/$my_dlsyms" "\
-LT_DLSYM_CONST lt_dlsymlist
-lt_${my_prefix}_LTX_preloaded_symbols[] =
-{ {\"$my_originator\", (void *) 0},"
-
- if test -s "$nlist"I; then
- echo >> "$output_objdir/$my_dlsyms" "\
- {\"@INIT@\", (void *) <_syminit},"
- fi
-
- case $need_lib_prefix in
- no)
- eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms"
- ;;
- *)
- eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms"
- ;;
- esac
- echo >> "$output_objdir/$my_dlsyms" "\
- {0, (void *) 0}
-};
-
-/* This works around a problem in FreeBSD linker */
-#ifdef FREEBSD_WORKAROUND
-static const void *lt_preloaded_setup() {
- return lt_${my_prefix}_LTX_preloaded_symbols;
-}
-#endif
-
-#ifdef __cplusplus
-}
-#endif\
-"
- } # !$opt_dry_run
-
- pic_flag_for_symtable=
- case "$compile_command " in
- *" -static "*) ;;
- *)
- case $host in
- # compiling the symbol table file with pic_flag works around
- # a FreeBSD bug that causes programs to crash when -lm is
- # linked before any other PIC object. But we must not use
- # pic_flag when linking with -static. The problem exists in
- # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
- *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
- pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
- *-*-hpux*)
- pic_flag_for_symtable=" $pic_flag" ;;
- *)
- $my_pic_p && pic_flag_for_symtable=" $pic_flag"
- ;;
- esac
- ;;
- esac
- symtab_cflags=
- for arg in $LTCFLAGS; do
- case $arg in
- -pie | -fpie | -fPIE) ;;
- *) func_append symtab_cflags " $arg" ;;
- esac
- done
-
- # Now compile the dynamic symbol file.
- func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?'
-
- # Clean up the generated files.
- func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T" "${nlist}I"'
-
- # Transform the symbol file into the correct name.
- symfileobj=$output_objdir/${my_outputname}S.$objext
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- if test -f "$output_objdir/$my_outputname.def"; then
- compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
- finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
- else
- compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
- finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
- fi
- ;;
- *)
- compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
- finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
- ;;
- esac
- ;;
- *)
- func_fatal_error "unknown suffix for '$my_dlsyms'"
- ;;
- esac
- else
- # We keep going just in case the user didn't refer to
- # lt_preloaded_symbols. The linker will fail if global_symbol_pipe
- # really was required.
-
- # Nullify the symbol file.
- compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"`
- finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"`
- fi
-}
-
-# func_cygming_gnu_implib_p ARG
-# This predicate returns with zero status (TRUE) if
-# ARG is a GNU/binutils-style import library. Returns
-# with nonzero status (FALSE) otherwise.
-func_cygming_gnu_implib_p ()
-{
- $debug_cmd
-
- func_to_tool_file "$1" func_convert_file_msys_to_w32
- func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'`
- test -n "$func_cygming_gnu_implib_tmp"
-}
-
-# func_cygming_ms_implib_p ARG
-# This predicate returns with zero status (TRUE) if
-# ARG is an MS-style import library. Returns
-# with nonzero status (FALSE) otherwise.
-func_cygming_ms_implib_p ()
-{
- $debug_cmd
-
- func_to_tool_file "$1" func_convert_file_msys_to_w32
- func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'`
- test -n "$func_cygming_ms_implib_tmp"
-}
-
-# func_win32_libid arg
-# return the library type of file 'arg'
-#
-# Need a lot of goo to handle *both* DLLs and import libs
-# Has to be a shell function in order to 'eat' the argument
-# that is supplied when $file_magic_command is called.
-# Despite the name, also deal with 64 bit binaries.
-func_win32_libid ()
-{
- $debug_cmd
-
- win32_libid_type=unknown
- win32_fileres=`file -L $1 2>/dev/null`
- case $win32_fileres in
- *ar\ archive\ import\ library*) # definitely import
- win32_libid_type="x86 archive import"
- ;;
- *ar\ archive*) # could be an import, or static
- # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD.
- if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null |
- $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then
- case $nm_interface in
- "MS dumpbin")
- if func_cygming_ms_implib_p "$1" ||
- func_cygming_gnu_implib_p "$1"
- then
- win32_nmres=import
- else
- win32_nmres=
- fi
- ;;
- *)
- func_to_tool_file "$1" func_convert_file_msys_to_w32
- win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" |
- $SED -n -e '
- 1,100{
- / I /{
- s|.*|import|
- p
- q
- }
- }'`
- ;;
- esac
- case $win32_nmres in
- import*) win32_libid_type="x86 archive import";;
- *) win32_libid_type="x86 archive static";;
- esac
- fi
- ;;
- *DLL*)
- win32_libid_type="x86 DLL"
- ;;
- *executable*) # but shell scripts are "executable" too...
- case $win32_fileres in
- *MS\ Windows\ PE\ Intel*)
- win32_libid_type="x86 DLL"
- ;;
- esac
- ;;
- esac
- $ECHO "$win32_libid_type"
-}
-
-# func_cygming_dll_for_implib ARG
-#
-# Platform-specific function to extract the
-# name of the DLL associated with the specified
-# import library ARG.
-# Invoked by eval'ing the libtool variable
-# $sharedlib_from_linklib_cmd
-# Result is available in the variable
-# $sharedlib_from_linklib_result
-func_cygming_dll_for_implib ()
-{
- $debug_cmd
-
- sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"`
-}
-
-# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs
-#
-# The is the core of a fallback implementation of a
-# platform-specific function to extract the name of the
-# DLL associated with the specified import library LIBNAME.
-#
-# SECTION_NAME is either .idata$6 or .idata$7, depending
-# on the platform and compiler that created the implib.
-#
-# Echos the name of the DLL associated with the
-# specified import library.
-func_cygming_dll_for_implib_fallback_core ()
-{
- $debug_cmd
-
- match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"`
- $OBJDUMP -s --section "$1" "$2" 2>/dev/null |
- $SED '/^Contents of section '"$match_literal"':/{
- # Place marker at beginning of archive member dllname section
- s/.*/====MARK====/
- p
- d
- }
- # These lines can sometimes be longer than 43 characters, but
- # are always uninteresting
- /:[ ]*file format pe[i]\{,1\}-/d
- /^In archive [^:]*:/d
- # Ensure marker is printed
- /^====MARK====/p
- # Remove all lines with less than 43 characters
- /^.\{43\}/!d
- # From remaining lines, remove first 43 characters
- s/^.\{43\}//' |
- $SED -n '
- # Join marker and all lines until next marker into a single line
- /^====MARK====/ b para
- H
- $ b para
- b
- :para
- x
- s/\n//g
- # Remove the marker
- s/^====MARK====//
- # Remove trailing dots and whitespace
- s/[\. \t]*$//
- # Print
- /./p' |
- # we now have a list, one entry per line, of the stringified
- # contents of the appropriate section of all members of the
- # archive that possess that section. Heuristic: eliminate
- # all those that have a first or second character that is
- # a '.' (that is, objdump's representation of an unprintable
- # character.) This should work for all archives with less than
- # 0x302f exports -- but will fail for DLLs whose name actually
- # begins with a literal '.' or a single character followed by
- # a '.'.
- #
- # Of those that remain, print the first one.
- $SED -e '/^\./d;/^.\./d;q'
-}
-
-# func_cygming_dll_for_implib_fallback ARG
-# Platform-specific function to extract the
-# name of the DLL associated with the specified
-# import library ARG.
-#
-# This fallback implementation is for use when $DLLTOOL
-# does not support the --identify-strict option.
-# Invoked by eval'ing the libtool variable
-# $sharedlib_from_linklib_cmd
-# Result is available in the variable
-# $sharedlib_from_linklib_result
-func_cygming_dll_for_implib_fallback ()
-{
- $debug_cmd
-
- if func_cygming_gnu_implib_p "$1"; then
- # binutils import library
- sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"`
- elif func_cygming_ms_implib_p "$1"; then
- # ms-generated import library
- sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"`
- else
- # unknown
- sharedlib_from_linklib_result=
- fi
-}
-
-
-# func_extract_an_archive dir oldlib
-func_extract_an_archive ()
-{
- $debug_cmd
-
- f_ex_an_ar_dir=$1; shift
- f_ex_an_ar_oldlib=$1
- if test yes = "$lock_old_archive_extraction"; then
- lockfile=$f_ex_an_ar_oldlib.lock
- until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
- func_echo "Waiting for $lockfile to be removed"
- sleep 2
- done
- fi
- func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \
- 'stat=$?; rm -f "$lockfile"; exit $stat'
- if test yes = "$lock_old_archive_extraction"; then
- $opt_dry_run || rm -f "$lockfile"
- fi
- if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then
- :
- else
- func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib"
- fi
-}
-
-
-# func_extract_archives gentop oldlib ...
-func_extract_archives ()
-{
- $debug_cmd
-
- my_gentop=$1; shift
- my_oldlibs=${1+"$@"}
- my_oldobjs=
- my_xlib=
- my_xabs=
- my_xdir=
-
- for my_xlib in $my_oldlibs; do
- # Extract the objects.
- case $my_xlib in
- [\\/]* | [A-Za-z]:[\\/]*) my_xabs=$my_xlib ;;
- *) my_xabs=`pwd`"/$my_xlib" ;;
- esac
- func_basename "$my_xlib"
- my_xlib=$func_basename_result
- my_xlib_u=$my_xlib
- while :; do
- case " $extracted_archives " in
- *" $my_xlib_u "*)
- func_arith $extracted_serial + 1
- extracted_serial=$func_arith_result
- my_xlib_u=lt$extracted_serial-$my_xlib ;;
- *) break ;;
- esac
- done
- extracted_archives="$extracted_archives $my_xlib_u"
- my_xdir=$my_gentop/$my_xlib_u
-
- func_mkdir_p "$my_xdir"
-
- case $host in
- *-darwin*)
- func_verbose "Extracting $my_xabs"
- # Do not bother doing anything if just a dry run
- $opt_dry_run || {
- darwin_orig_dir=`pwd`
- cd $my_xdir || exit $?
- darwin_archive=$my_xabs
- darwin_curdir=`pwd`
- func_basename "$darwin_archive"
- darwin_base_archive=$func_basename_result
- darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true`
- if test -n "$darwin_arches"; then
- darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'`
- darwin_arch=
- func_verbose "$darwin_base_archive has multiple architectures $darwin_arches"
- for darwin_arch in $darwin_arches; do
- func_mkdir_p "unfat-$$/$darwin_base_archive-$darwin_arch"
- $LIPO -thin $darwin_arch -output "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" "$darwin_archive"
- cd "unfat-$$/$darwin_base_archive-$darwin_arch"
- func_extract_an_archive "`pwd`" "$darwin_base_archive"
- cd "$darwin_curdir"
- $RM "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive"
- done # $darwin_arches
- ## Okay now we've a bunch of thin objects, gotta fatten them up :)
- darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$sed_basename" | sort -u`
- darwin_file=
- darwin_files=
- for darwin_file in $darwin_filelist; do
- darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP`
- $LIPO -create -output "$darwin_file" $darwin_files
- done # $darwin_filelist
- $RM -rf unfat-$$
- cd "$darwin_orig_dir"
- else
- cd $darwin_orig_dir
- func_extract_an_archive "$my_xdir" "$my_xabs"
- fi # $darwin_arches
- } # !$opt_dry_run
- ;;
- *)
- func_extract_an_archive "$my_xdir" "$my_xabs"
- ;;
- esac
- my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP`
- done
-
- func_extract_archives_result=$my_oldobjs
-}
-
-
-# func_emit_wrapper [arg=no]
-#
-# Emit a libtool wrapper script on stdout.
-# Don't directly open a file because we may want to
-# incorporate the script contents within a cygwin/mingw
-# wrapper executable. Must ONLY be called from within
-# func_mode_link because it depends on a number of variables
-# set therein.
-#
-# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR
-# variable will take. If 'yes', then the emitted script
-# will assume that the directory where it is stored is
-# the $objdir directory. This is a cygwin/mingw-specific
-# behavior.
-func_emit_wrapper ()
-{
- func_emit_wrapper_arg1=${1-no}
-
- $ECHO "\
-#! $SHELL
-
-# $output - temporary wrapper script for $objdir/$outputname
-# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
-#
-# The $output program cannot be directly executed until all the libtool
-# libraries that it depends on are installed.
-#
-# This wrapper script should never be moved out of the build directory.
-# If it is, it will not operate correctly.
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-sed_quote_subst='$sed_quote_subst'
-
-# Be Bourne compatible
-if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '\${1+\"\$@\"}'='\"\$@\"'
- setopt NO_GLOB_SUBST
-else
- case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-relink_command=\"$relink_command\"
-
-# This environment variable determines our operation mode.
-if test \"\$libtool_install_magic\" = \"$magic\"; then
- # install mode needs the following variables:
- generated_by_libtool_version='$macro_version'
- notinst_deplibs='$notinst_deplibs'
-else
- # When we are sourced in execute mode, \$file and \$ECHO are already set.
- if test \"\$libtool_execute_magic\" != \"$magic\"; then
- file=\"\$0\""
-
- qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"`
- $ECHO "\
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
- eval 'cat <<_LTECHO_EOF
-\$1
-_LTECHO_EOF'
-}
- ECHO=\"$qECHO\"
- fi
-
-# Very basic option parsing. These options are (a) specific to
-# the libtool wrapper, (b) are identical between the wrapper
-# /script/ and the wrapper /executable/ that is used only on
-# windows platforms, and (c) all begin with the string "--lt-"
-# (application programs are unlikely to have options that match
-# this pattern).
-#
-# There are only two supported options: --lt-debug and
-# --lt-dump-script. There is, deliberately, no --lt-help.
-#
-# The first argument to this parsing function should be the
-# script's $0 value, followed by "$@".
-lt_option_debug=
-func_parse_lt_options ()
-{
- lt_script_arg0=\$0
- shift
- for lt_opt
- do
- case \"\$lt_opt\" in
- --lt-debug) lt_option_debug=1 ;;
- --lt-dump-script)
- lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\`
- test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=.
- lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\`
- cat \"\$lt_dump_D/\$lt_dump_F\"
- exit 0
- ;;
- --lt-*)
- \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2
- exit 1
- ;;
- esac
- done
-
- # Print the debug banner immediately:
- if test -n \"\$lt_option_debug\"; then
- echo \"$outputname:$output:\$LINENO: libtool wrapper (GNU $PACKAGE) $VERSION\" 1>&2
- fi
-}
-
-# Used when --lt-debug. Prints its arguments to stdout
-# (redirection is the responsibility of the caller)
-func_lt_dump_args ()
-{
- lt_dump_args_N=1;
- for lt_arg
- do
- \$ECHO \"$outputname:$output:\$LINENO: newargv[\$lt_dump_args_N]: \$lt_arg\"
- lt_dump_args_N=\`expr \$lt_dump_args_N + 1\`
- done
-}
-
-# Core function for launching the target application
-func_exec_program_core ()
-{
-"
- case $host in
- # Backslashes separate directories on plain windows
- *-*-mingw | *-*-os2* | *-cegcc*)
- $ECHO "\
- if test -n \"\$lt_option_debug\"; then
- \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir\\\\\$program\" 1>&2
- func_lt_dump_args \${1+\"\$@\"} 1>&2
- fi
- exec \"\$progdir\\\\\$program\" \${1+\"\$@\"}
-"
- ;;
-
- *)
- $ECHO "\
- if test -n \"\$lt_option_debug\"; then
- \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir/\$program\" 1>&2
- func_lt_dump_args \${1+\"\$@\"} 1>&2
- fi
- exec \"\$progdir/\$program\" \${1+\"\$@\"}
-"
- ;;
- esac
- $ECHO "\
- \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2
- exit 1
-}
-
-# A function to encapsulate launching the target application
-# Strips options in the --lt-* namespace from \$@ and
-# launches target application with the remaining arguments.
-func_exec_program ()
-{
- case \" \$* \" in
- *\\ --lt-*)
- for lt_wr_arg
- do
- case \$lt_wr_arg in
- --lt-*) ;;
- *) set x \"\$@\" \"\$lt_wr_arg\"; shift;;
- esac
- shift
- done ;;
- esac
- func_exec_program_core \${1+\"\$@\"}
-}
-
- # Parse options
- func_parse_lt_options \"\$0\" \${1+\"\$@\"}
-
- # Find the directory that this script lives in.
- thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\`
- test \"x\$thisdir\" = \"x\$file\" && thisdir=.
-
- # Follow symbolic links until we get to the real thisdir.
- file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\`
- while test -n \"\$file\"; do
- destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\`
-
- # If there was a directory component, then change thisdir.
- if test \"x\$destdir\" != \"x\$file\"; then
- case \"\$destdir\" in
- [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
- *) thisdir=\"\$thisdir/\$destdir\" ;;
- esac
- fi
-
- file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\`
- file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\`
- done
-
- # Usually 'no', except on cygwin/mingw when embedded into
- # the cwrapper.
- WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1
- if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then
- # special case for '.'
- if test \"\$thisdir\" = \".\"; then
- thisdir=\`pwd\`
- fi
- # remove .libs from thisdir
- case \"\$thisdir\" in
- *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;;
- $objdir ) thisdir=. ;;
- esac
- fi
-
- # Try to get the absolute directory name.
- absdir=\`cd \"\$thisdir\" && pwd\`
- test -n \"\$absdir\" && thisdir=\"\$absdir\"
-"
-
- if test yes = "$fast_install"; then
- $ECHO "\
- program=lt-'$outputname'$exeext
- progdir=\"\$thisdir/$objdir\"
-
- if test ! -f \"\$progdir/\$program\" ||
- { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | $SED 1q\`; \\
- test \"X\$file\" != \"X\$progdir/\$program\"; }; then
-
- file=\"\$\$-\$program\"
-
- if test ! -d \"\$progdir\"; then
- $MKDIR \"\$progdir\"
- else
- $RM \"\$progdir/\$file\"
- fi"
-
- $ECHO "\
-
- # relink executable if necessary
- if test -n \"\$relink_command\"; then
- if relink_command_output=\`eval \$relink_command 2>&1\`; then :
- else
- \$ECHO \"\$relink_command_output\" >&2
- $RM \"\$progdir/\$file\"
- exit 1
- fi
- fi
-
- $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
- { $RM \"\$progdir/\$program\";
- $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; }
- $RM \"\$progdir/\$file\"
- fi"
- else
- $ECHO "\
- program='$outputname'
- progdir=\"\$thisdir/$objdir\"
-"
- fi
-
- $ECHO "\
-
- if test -f \"\$progdir/\$program\"; then"
-
- # fixup the dll searchpath if we need to.
- #
- # Fix the DLL searchpath if we need to. Do this before prepending
- # to shlibpath, because on Windows, both are PATH and uninstalled
- # libraries must come first.
- if test -n "$dllsearchpath"; then
- $ECHO "\
- # Add the dll search path components to the executable PATH
- PATH=$dllsearchpath:\$PATH
-"
- fi
-
- # Export our shlibpath_var if we have one.
- if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
- $ECHO "\
- # Add our own library path to $shlibpath_var
- $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"
-
- # Some systems cannot cope with colon-terminated $shlibpath_var
- # The second colon is a workaround for a bug in BeOS R4 sed
- $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\`
-
- export $shlibpath_var
-"
- fi
-
- $ECHO "\
- if test \"\$libtool_execute_magic\" != \"$magic\"; then
- # Run the actual program with our arguments.
- func_exec_program \${1+\"\$@\"}
- fi
- else
- # The program doesn't exist.
- \$ECHO \"\$0: error: '\$progdir/\$program' does not exist\" 1>&2
- \$ECHO \"This script is just a wrapper for \$program.\" 1>&2
- \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
- exit 1
- fi
-fi\
-"
-}
-
-
-# func_emit_cwrapperexe_src
-# emit the source code for a wrapper executable on stdout
-# Must ONLY be called from within func_mode_link because
-# it depends on a number of variable set therein.
-func_emit_cwrapperexe_src ()
-{
- cat <<EOF
-
-/* $cwrappersource - temporary wrapper executable for $objdir/$outputname
- Generated by $PROGRAM (GNU $PACKAGE) $VERSION
-
- The $output program cannot be directly executed until all the libtool
- libraries that it depends on are installed.
-
- This wrapper executable should never be moved out of the build directory.
- If it is, it will not operate correctly.
-*/
-EOF
- cat <<"EOF"
-#ifdef _MSC_VER
-# define _CRT_SECURE_NO_DEPRECATE 1
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-#ifdef _MSC_VER
-# include <direct.h>
-# include <process.h>
-# include <io.h>
-#else
-# include <unistd.h>
-# include <stdint.h>
-# ifdef __CYGWIN__
-# include <io.h>
-# endif
-#endif
-#include <malloc.h>
-#include <stdarg.h>
-#include <assert.h>
-#include <string.h>
-#include <ctype.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-
-#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0)
-
-/* declarations of non-ANSI functions */
-#if defined __MINGW32__
-# ifdef __STRICT_ANSI__
-int _putenv (const char *);
-# endif
-#elif defined __CYGWIN__
-# ifdef __STRICT_ANSI__
-char *realpath (const char *, char *);
-int putenv (char *);
-int setenv (const char *, const char *, int);
-# endif
-/* #elif defined other_platform || defined ... */
-#endif
-
-/* portability defines, excluding path handling macros */
-#if defined _MSC_VER
-# define setmode _setmode
-# define stat _stat
-# define chmod _chmod
-# define getcwd _getcwd
-# define putenv _putenv
-# define S_IXUSR _S_IEXEC
-#elif defined __MINGW32__
-# define setmode _setmode
-# define stat _stat
-# define chmod _chmod
-# define getcwd _getcwd
-# define putenv _putenv
-#elif defined __CYGWIN__
-# define HAVE_SETENV
-# define FOPEN_WB "wb"
-/* #elif defined other platforms ... */
-#endif
-
-#if defined PATH_MAX
-# define LT_PATHMAX PATH_MAX
-#elif defined MAXPATHLEN
-# define LT_PATHMAX MAXPATHLEN
-#else
-# define LT_PATHMAX 1024
-#endif
-
-#ifndef S_IXOTH
-# define S_IXOTH 0
-#endif
-#ifndef S_IXGRP
-# define S_IXGRP 0
-#endif
-
-/* path handling portability macros */
-#ifndef DIR_SEPARATOR
-# define DIR_SEPARATOR '/'
-# define PATH_SEPARATOR ':'
-#endif
-
-#if defined _WIN32 || defined __MSDOS__ || defined __DJGPP__ || \
- defined __OS2__
-# define HAVE_DOS_BASED_FILE_SYSTEM
-# define FOPEN_WB "wb"
-# ifndef DIR_SEPARATOR_2
-# define DIR_SEPARATOR_2 '\\'
-# endif
-# ifndef PATH_SEPARATOR_2
-# define PATH_SEPARATOR_2 ';'
-# endif
-#endif
-
-#ifndef DIR_SEPARATOR_2
-# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
-#else /* DIR_SEPARATOR_2 */
-# define IS_DIR_SEPARATOR(ch) \
- (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
-#endif /* DIR_SEPARATOR_2 */
-
-#ifndef PATH_SEPARATOR_2
-# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR)
-#else /* PATH_SEPARATOR_2 */
-# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2)
-#endif /* PATH_SEPARATOR_2 */
-
-#ifndef FOPEN_WB
-# define FOPEN_WB "w"
-#endif
-#ifndef _O_BINARY
-# define _O_BINARY 0
-#endif
-
-#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type)))
-#define XFREE(stale) do { \
- if (stale) { free (stale); stale = 0; } \
-} while (0)
-
-#if defined LT_DEBUGWRAPPER
-static int lt_debug = 1;
-#else
-static int lt_debug = 0;
-#endif
-
-const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */
-
-void *xmalloc (size_t num);
-char *xstrdup (const char *string);
-const char *base_name (const char *name);
-char *find_executable (const char *wrapper);
-char *chase_symlinks (const char *pathspec);
-int make_executable (const char *path);
-int check_executable (const char *path);
-char *strendzap (char *str, const char *pat);
-void lt_debugprintf (const char *file, int line, const char *fmt, ...);
-void lt_fatal (const char *file, int line, const char *message, ...);
-static const char *nonnull (const char *s);
-static const char *nonempty (const char *s);
-void lt_setenv (const char *name, const char *value);
-char *lt_extend_str (const char *orig_value, const char *add, int to_end);
-void lt_update_exe_path (const char *name, const char *value);
-void lt_update_lib_path (const char *name, const char *value);
-char **prepare_spawn (char **argv);
-void lt_dump_script (FILE *f);
-EOF
-
- cat <<EOF
-#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
-# define externally_visible volatile
-#else
-# define externally_visible __attribute__((externally_visible)) volatile
-#endif
-externally_visible const char * MAGIC_EXE = "$magic_exe";
-const char * LIB_PATH_VARNAME = "$shlibpath_var";
-EOF
-
- if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
- func_to_host_path "$temp_rpath"
- cat <<EOF
-const char * LIB_PATH_VALUE = "$func_to_host_path_result";
-EOF
- else
- cat <<"EOF"
-const char * LIB_PATH_VALUE = "";
-EOF
- fi
-
- if test -n "$dllsearchpath"; then
- func_to_host_path "$dllsearchpath:"
- cat <<EOF
-const char * EXE_PATH_VARNAME = "PATH";
-const char * EXE_PATH_VALUE = "$func_to_host_path_result";
-EOF
- else
- cat <<"EOF"
-const char * EXE_PATH_VARNAME = "";
-const char * EXE_PATH_VALUE = "";
-EOF
- fi
-
- if test yes = "$fast_install"; then
- cat <<EOF
-const char * TARGET_PROGRAM_NAME = "lt-$outputname"; /* hopefully, no .exe */
-EOF
- else
- cat <<EOF
-const char * TARGET_PROGRAM_NAME = "$outputname"; /* hopefully, no .exe */
-EOF
- fi
-
-
- cat <<"EOF"
-
-#define LTWRAPPER_OPTION_PREFIX "--lt-"
-
-static const char *ltwrapper_option_prefix = LTWRAPPER_OPTION_PREFIX;
-static const char *dumpscript_opt = LTWRAPPER_OPTION_PREFIX "dump-script";
-static const char *debug_opt = LTWRAPPER_OPTION_PREFIX "debug";
-
-int
-main (int argc, char *argv[])
-{
- char **newargz;
- int newargc;
- char *tmp_pathspec;
- char *actual_cwrapper_path;
- char *actual_cwrapper_name;
- char *target_name;
- char *lt_argv_zero;
- int rval = 127;
-
- int i;
-
- program_name = (char *) xstrdup (base_name (argv[0]));
- newargz = XMALLOC (char *, (size_t) argc + 1);
-
- /* very simple arg parsing; don't want to rely on getopt
- * also, copy all non cwrapper options to newargz, except
- * argz[0], which is handled differently
- */
- newargc=0;
- for (i = 1; i < argc; i++)
- {
- if (STREQ (argv[i], dumpscript_opt))
- {
-EOF
- case $host in
- *mingw* | *cygwin* )
- # make stdout use "unix" line endings
- echo " setmode(1,_O_BINARY);"
- ;;
- esac
-
- cat <<"EOF"
- lt_dump_script (stdout);
- return 0;
- }
- if (STREQ (argv[i], debug_opt))
- {
- lt_debug = 1;
- continue;
- }
- if (STREQ (argv[i], ltwrapper_option_prefix))
- {
- /* however, if there is an option in the LTWRAPPER_OPTION_PREFIX
- namespace, but it is not one of the ones we know about and
- have already dealt with, above (inluding dump-script), then
- report an error. Otherwise, targets might begin to believe
- they are allowed to use options in the LTWRAPPER_OPTION_PREFIX
- namespace. The first time any user complains about this, we'll
- need to make LTWRAPPER_OPTION_PREFIX a configure-time option
- or a configure.ac-settable value.
- */
- lt_fatal (__FILE__, __LINE__,
- "unrecognized %s option: '%s'",
- ltwrapper_option_prefix, argv[i]);
- }
- /* otherwise ... */
- newargz[++newargc] = xstrdup (argv[i]);
- }
- newargz[++newargc] = NULL;
-
-EOF
- cat <<EOF
- /* The GNU banner must be the first non-error debug message */
- lt_debugprintf (__FILE__, __LINE__, "libtool wrapper (GNU $PACKAGE) $VERSION\n");
-EOF
- cat <<"EOF"
- lt_debugprintf (__FILE__, __LINE__, "(main) argv[0]: %s\n", argv[0]);
- lt_debugprintf (__FILE__, __LINE__, "(main) program_name: %s\n", program_name);
-
- tmp_pathspec = find_executable (argv[0]);
- if (tmp_pathspec == NULL)
- lt_fatal (__FILE__, __LINE__, "couldn't find %s", argv[0]);
- lt_debugprintf (__FILE__, __LINE__,
- "(main) found exe (before symlink chase) at: %s\n",
- tmp_pathspec);
-
- actual_cwrapper_path = chase_symlinks (tmp_pathspec);
- lt_debugprintf (__FILE__, __LINE__,
- "(main) found exe (after symlink chase) at: %s\n",
- actual_cwrapper_path);
- XFREE (tmp_pathspec);
-
- actual_cwrapper_name = xstrdup (base_name (actual_cwrapper_path));
- strendzap (actual_cwrapper_path, actual_cwrapper_name);
-
- /* wrapper name transforms */
- strendzap (actual_cwrapper_name, ".exe");
- tmp_pathspec = lt_extend_str (actual_cwrapper_name, ".exe", 1);
- XFREE (actual_cwrapper_name);
- actual_cwrapper_name = tmp_pathspec;
- tmp_pathspec = 0;
-
- /* target_name transforms -- use actual target program name; might have lt- prefix */
- target_name = xstrdup (base_name (TARGET_PROGRAM_NAME));
- strendzap (target_name, ".exe");
- tmp_pathspec = lt_extend_str (target_name, ".exe", 1);
- XFREE (target_name);
- target_name = tmp_pathspec;
- tmp_pathspec = 0;
-
- lt_debugprintf (__FILE__, __LINE__,
- "(main) libtool target name: %s\n",
- target_name);
-EOF
-
- cat <<EOF
- newargz[0] =
- XMALLOC (char, (strlen (actual_cwrapper_path) +
- strlen ("$objdir") + 1 + strlen (actual_cwrapper_name) + 1));
- strcpy (newargz[0], actual_cwrapper_path);
- strcat (newargz[0], "$objdir");
- strcat (newargz[0], "/");
-EOF
-
- cat <<"EOF"
- /* stop here, and copy so we don't have to do this twice */
- tmp_pathspec = xstrdup (newargz[0]);
-
- /* do NOT want the lt- prefix here, so use actual_cwrapper_name */
- strcat (newargz[0], actual_cwrapper_name);
-
- /* DO want the lt- prefix here if it exists, so use target_name */
- lt_argv_zero = lt_extend_str (tmp_pathspec, target_name, 1);
- XFREE (tmp_pathspec);
- tmp_pathspec = NULL;
-EOF
-
- case $host_os in
- mingw*)
- cat <<"EOF"
- {
- char* p;
- while ((p = strchr (newargz[0], '\\')) != NULL)
- {
- *p = '/';
- }
- while ((p = strchr (lt_argv_zero, '\\')) != NULL)
- {
- *p = '/';
- }
- }
-EOF
- ;;
- esac
-
- cat <<"EOF"
- XFREE (target_name);
- XFREE (actual_cwrapper_path);
- XFREE (actual_cwrapper_name);
-
- lt_setenv ("BIN_SH", "xpg4"); /* for Tru64 */
- lt_setenv ("DUALCASE", "1"); /* for MSK sh */
- /* Update the DLL searchpath. EXE_PATH_VALUE ($dllsearchpath) must
- be prepended before (that is, appear after) LIB_PATH_VALUE ($temp_rpath)
- because on Windows, both *_VARNAMEs are PATH but uninstalled
- libraries must come first. */
- lt_update_exe_path (EXE_PATH_VARNAME, EXE_PATH_VALUE);
- lt_update_lib_path (LIB_PATH_VARNAME, LIB_PATH_VALUE);
-
- lt_debugprintf (__FILE__, __LINE__, "(main) lt_argv_zero: %s\n",
- nonnull (lt_argv_zero));
- for (i = 0; i < newargc; i++)
- {
- lt_debugprintf (__FILE__, __LINE__, "(main) newargz[%d]: %s\n",
- i, nonnull (newargz[i]));
- }
-
-EOF
-
- case $host_os in
- mingw*)
- cat <<"EOF"
- /* execv doesn't actually work on mingw as expected on unix */
- newargz = prepare_spawn (newargz);
- rval = (int) _spawnv (_P_WAIT, lt_argv_zero, (const char * const *) newargz);
- if (rval == -1)
- {
- /* failed to start process */
- lt_debugprintf (__FILE__, __LINE__,
- "(main) failed to launch target \"%s\": %s\n",
- lt_argv_zero, nonnull (strerror (errno)));
- return 127;
- }
- return rval;
-EOF
- ;;
- *)
- cat <<"EOF"
- execv (lt_argv_zero, newargz);
- return rval; /* =127, but avoids unused variable warning */
-EOF
- ;;
- esac
-
- cat <<"EOF"
-}
-
-void *
-xmalloc (size_t num)
-{
- void *p = (void *) malloc (num);
- if (!p)
- lt_fatal (__FILE__, __LINE__, "memory exhausted");
-
- return p;
-}
-
-char *
-xstrdup (const char *string)
-{
- return string ? strcpy ((char *) xmalloc (strlen (string) + 1),
- string) : NULL;
-}
-
-const char *
-base_name (const char *name)
-{
- const char *base;
-
-#if defined HAVE_DOS_BASED_FILE_SYSTEM
- /* Skip over the disk name in MSDOS pathnames. */
- if (isalpha ((unsigned char) name[0]) && name[1] == ':')
- name += 2;
-#endif
-
- for (base = name; *name; name++)
- if (IS_DIR_SEPARATOR (*name))
- base = name + 1;
- return base;
-}
-
-int
-check_executable (const char *path)
-{
- struct stat st;
-
- lt_debugprintf (__FILE__, __LINE__, "(check_executable): %s\n",
- nonempty (path));
- if ((!path) || (!*path))
- return 0;
-
- if ((stat (path, &st) >= 0)
- && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
- return 1;
- else
- return 0;
-}
-
-int
-make_executable (const char *path)
-{
- int rval = 0;
- struct stat st;
-
- lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n",
- nonempty (path));
- if ((!path) || (!*path))
- return 0;
-
- if (stat (path, &st) >= 0)
- {
- rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR);
- }
- return rval;
-}
-
-/* Searches for the full path of the wrapper. Returns
- newly allocated full path name if found, NULL otherwise
- Does not chase symlinks, even on platforms that support them.
-*/
-char *
-find_executable (const char *wrapper)
-{
- int has_slash = 0;
- const char *p;
- const char *p_next;
- /* static buffer for getcwd */
- char tmp[LT_PATHMAX + 1];
- size_t tmp_len;
- char *concat_name;
-
- lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n",
- nonempty (wrapper));
-
- if ((wrapper == NULL) || (*wrapper == '\0'))
- return NULL;
-
- /* Absolute path? */
-#if defined HAVE_DOS_BASED_FILE_SYSTEM
- if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
- {
- concat_name = xstrdup (wrapper);
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- }
- else
- {
-#endif
- if (IS_DIR_SEPARATOR (wrapper[0]))
- {
- concat_name = xstrdup (wrapper);
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- }
-#if defined HAVE_DOS_BASED_FILE_SYSTEM
- }
-#endif
-
- for (p = wrapper; *p; p++)
- if (*p == '/')
- {
- has_slash = 1;
- break;
- }
- if (!has_slash)
- {
- /* no slashes; search PATH */
- const char *path = getenv ("PATH");
- if (path != NULL)
- {
- for (p = path; *p; p = p_next)
- {
- const char *q;
- size_t p_len;
- for (q = p; *q; q++)
- if (IS_PATH_SEPARATOR (*q))
- break;
- p_len = (size_t) (q - p);
- p_next = (*q == '\0' ? q : q + 1);
- if (p_len == 0)
- {
- /* empty path: current directory */
- if (getcwd (tmp, LT_PATHMAX) == NULL)
- lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
- nonnull (strerror (errno)));
- tmp_len = strlen (tmp);
- concat_name =
- XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
- memcpy (concat_name, tmp, tmp_len);
- concat_name[tmp_len] = '/';
- strcpy (concat_name + tmp_len + 1, wrapper);
- }
- else
- {
- concat_name =
- XMALLOC (char, p_len + 1 + strlen (wrapper) + 1);
- memcpy (concat_name, p, p_len);
- concat_name[p_len] = '/';
- strcpy (concat_name + p_len + 1, wrapper);
- }
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- }
- }
- /* not found in PATH; assume curdir */
- }
- /* Relative path | not found in path: prepend cwd */
- if (getcwd (tmp, LT_PATHMAX) == NULL)
- lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
- nonnull (strerror (errno)));
- tmp_len = strlen (tmp);
- concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
- memcpy (concat_name, tmp, tmp_len);
- concat_name[tmp_len] = '/';
- strcpy (concat_name + tmp_len + 1, wrapper);
-
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- return NULL;
-}
-
-char *
-chase_symlinks (const char *pathspec)
-{
-#ifndef S_ISLNK
- return xstrdup (pathspec);
-#else
- char buf[LT_PATHMAX];
- struct stat s;
- char *tmp_pathspec = xstrdup (pathspec);
- char *p;
- int has_symlinks = 0;
- while (strlen (tmp_pathspec) && !has_symlinks)
- {
- lt_debugprintf (__FILE__, __LINE__,
- "checking path component for symlinks: %s\n",
- tmp_pathspec);
- if (lstat (tmp_pathspec, &s) == 0)
- {
- if (S_ISLNK (s.st_mode) != 0)
- {
- has_symlinks = 1;
- break;
- }
-
- /* search backwards for last DIR_SEPARATOR */
- p = tmp_pathspec + strlen (tmp_pathspec) - 1;
- while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
- p--;
- if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
- {
- /* no more DIR_SEPARATORS left */
- break;
- }
- *p = '\0';
- }
- else
- {
- lt_fatal (__FILE__, __LINE__,
- "error accessing file \"%s\": %s",
- tmp_pathspec, nonnull (strerror (errno)));
- }
- }
- XFREE (tmp_pathspec);
-
- if (!has_symlinks)
- {
- return xstrdup (pathspec);
- }
-
- tmp_pathspec = realpath (pathspec, buf);
- if (tmp_pathspec == 0)
- {
- lt_fatal (__FILE__, __LINE__,
- "could not follow symlinks for %s", pathspec);
- }
- return xstrdup (tmp_pathspec);
-#endif
-}
-
-char *
-strendzap (char *str, const char *pat)
-{
- size_t len, patlen;
-
- assert (str != NULL);
- assert (pat != NULL);
-
- len = strlen (str);
- patlen = strlen (pat);
-
- if (patlen <= len)
- {
- str += len - patlen;
- if (STREQ (str, pat))
- *str = '\0';
- }
- return str;
-}
-
-void
-lt_debugprintf (const char *file, int line, const char *fmt, ...)
-{
- va_list args;
- if (lt_debug)
- {
- (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line);
- va_start (args, fmt);
- (void) vfprintf (stderr, fmt, args);
- va_end (args);
- }
-}
-
-static void
-lt_error_core (int exit_status, const char *file,
- int line, const char *mode,
- const char *message, va_list ap)
-{
- fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode);
- vfprintf (stderr, message, ap);
- fprintf (stderr, ".\n");
-
- if (exit_status >= 0)
- exit (exit_status);
-}
-
-void
-lt_fatal (const char *file, int line, const char *message, ...)
-{
- va_list ap;
- va_start (ap, message);
- lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap);
- va_end (ap);
-}
-
-static const char *
-nonnull (const char *s)
-{
- return s ? s : "(null)";
-}
-
-static const char *
-nonempty (const char *s)
-{
- return (s && !*s) ? "(empty)" : nonnull (s);
-}
-
-void
-lt_setenv (const char *name, const char *value)
-{
- lt_debugprintf (__FILE__, __LINE__,
- "(lt_setenv) setting '%s' to '%s'\n",
- nonnull (name), nonnull (value));
- {
-#ifdef HAVE_SETENV
- /* always make a copy, for consistency with !HAVE_SETENV */
- char *str = xstrdup (value);
- setenv (name, str, 1);
-#else
- size_t len = strlen (name) + 1 + strlen (value) + 1;
- char *str = XMALLOC (char, len);
- sprintf (str, "%s=%s", name, value);
- if (putenv (str) != EXIT_SUCCESS)
- {
- XFREE (str);
- }
-#endif
- }
-}
-
-char *
-lt_extend_str (const char *orig_value, const char *add, int to_end)
-{
- char *new_value;
- if (orig_value && *orig_value)
- {
- size_t orig_value_len = strlen (orig_value);
- size_t add_len = strlen (add);
- new_value = XMALLOC (char, add_len + orig_value_len + 1);
- if (to_end)
- {
- strcpy (new_value, orig_value);
- strcpy (new_value + orig_value_len, add);
- }
- else
- {
- strcpy (new_value, add);
- strcpy (new_value + add_len, orig_value);
- }
- }
- else
- {
- new_value = xstrdup (add);
- }
- return new_value;
-}
-
-void
-lt_update_exe_path (const char *name, const char *value)
-{
- lt_debugprintf (__FILE__, __LINE__,
- "(lt_update_exe_path) modifying '%s' by prepending '%s'\n",
- nonnull (name), nonnull (value));
-
- if (name && *name && value && *value)
- {
- char *new_value = lt_extend_str (getenv (name), value, 0);
- /* some systems can't cope with a ':'-terminated path #' */
- size_t len = strlen (new_value);
- while ((len > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
- {
- new_value[--len] = '\0';
- }
- lt_setenv (name, new_value);
- XFREE (new_value);
- }
-}
-
-void
-lt_update_lib_path (const char *name, const char *value)
-{
- lt_debugprintf (__FILE__, __LINE__,
- "(lt_update_lib_path) modifying '%s' by prepending '%s'\n",
- nonnull (name), nonnull (value));
-
- if (name && *name && value && *value)
- {
- char *new_value = lt_extend_str (getenv (name), value, 0);
- lt_setenv (name, new_value);
- XFREE (new_value);
- }
-}
-
-EOF
- case $host_os in
- mingw*)
- cat <<"EOF"
-
-/* Prepares an argument vector before calling spawn().
- Note that spawn() does not by itself call the command interpreter
- (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") :
- ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
- GetVersionEx(&v);
- v.dwPlatformId == VER_PLATFORM_WIN32_NT;
- }) ? "cmd.exe" : "command.com").
- Instead it simply concatenates the arguments, separated by ' ', and calls
- CreateProcess(). We must quote the arguments since Win32 CreateProcess()
- interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a
- special way:
- - Space and tab are interpreted as delimiters. They are not treated as
- delimiters if they are surrounded by double quotes: "...".
- - Unescaped double quotes are removed from the input. Their only effect is
- that within double quotes, space and tab are treated like normal
- characters.
- - Backslashes not followed by double quotes are not special.
- - But 2*n+1 backslashes followed by a double quote become
- n backslashes followed by a double quote (n >= 0):
- \" -> "
- \\\" -> \"
- \\\\\" -> \\"
- */
-#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
-#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
-char **
-prepare_spawn (char **argv)
-{
- size_t argc;
- char **new_argv;
- size_t i;
-
- /* Count number of arguments. */
- for (argc = 0; argv[argc] != NULL; argc++)
- ;
-
- /* Allocate new argument vector. */
- new_argv = XMALLOC (char *, argc + 1);
-
- /* Put quoted arguments into the new argument vector. */
- for (i = 0; i < argc; i++)
- {
- const char *string = argv[i];
-
- if (string[0] == '\0')
- new_argv[i] = xstrdup ("\"\"");
- else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL)
- {
- int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL);
- size_t length;
- unsigned int backslashes;
- const char *s;
- char *quoted_string;
- char *p;
-
- length = 0;
- backslashes = 0;
- if (quote_around)
- length++;
- for (s = string; *s != '\0'; s++)
- {
- char c = *s;
- if (c == '"')
- length += backslashes + 1;
- length++;
- if (c == '\\')
- backslashes++;
- else
- backslashes = 0;
- }
- if (quote_around)
- length += backslashes + 1;
-
- quoted_string = XMALLOC (char, length + 1);
-
- p = quoted_string;
- backslashes = 0;
- if (quote_around)
- *p++ = '"';
- for (s = string; *s != '\0'; s++)
- {
- char c = *s;
- if (c == '"')
- {
- unsigned int j;
- for (j = backslashes + 1; j > 0; j--)
- *p++ = '\\';
- }
- *p++ = c;
- if (c == '\\')
- backslashes++;
- else
- backslashes = 0;
- }
- if (quote_around)
- {
- unsigned int j;
- for (j = backslashes; j > 0; j--)
- *p++ = '\\';
- *p++ = '"';
- }
- *p = '\0';
-
- new_argv[i] = quoted_string;
- }
- else
- new_argv[i] = (char *) string;
- }
- new_argv[argc] = NULL;
-
- return new_argv;
-}
-EOF
- ;;
- esac
-
- cat <<"EOF"
-void lt_dump_script (FILE* f)
-{
-EOF
- func_emit_wrapper yes |
- $SED -n -e '
-s/^\(.\{79\}\)\(..*\)/\1\
-\2/
-h
-s/\([\\"]\)/\\\1/g
-s/$/\\n/
-s/\([^\n]*\).*/ fputs ("\1", f);/p
-g
-D'
- cat <<"EOF"
-}
-EOF
-}
-# end: func_emit_cwrapperexe_src
-
-# func_win32_import_lib_p ARG
-# True if ARG is an import lib, as indicated by $file_magic_cmd
-func_win32_import_lib_p ()
-{
- $debug_cmd
-
- case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in
- *import*) : ;;
- *) false ;;
- esac
-}
-
-# func_suncc_cstd_abi
-# !!ONLY CALL THIS FOR SUN CC AFTER $compile_command IS FULLY EXPANDED!!
-# Several compiler flags select an ABI that is incompatible with the
-# Cstd library. Avoid specifying it if any are in CXXFLAGS.
-func_suncc_cstd_abi ()
-{
- $debug_cmd
-
- case " $compile_command " in
- *" -compat=g "*|*\ -std=c++[0-9][0-9]\ *|*" -library=stdcxx4 "*|*" -library=stlport4 "*)
- suncc_use_cstd_abi=no
- ;;
- *)
- suncc_use_cstd_abi=yes
- ;;
- esac
-}
-
-# func_mode_link arg...
-func_mode_link ()
-{
- $debug_cmd
-
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- # It is impossible to link a dll without this setting, and
- # we shouldn't force the makefile maintainer to figure out
- # what system we are compiling for in order to pass an extra
- # flag for every libtool invocation.
- # allow_undefined=no
-
- # FIXME: Unfortunately, there are problems with the above when trying
- # to make a dll that has undefined symbols, in which case not
- # even a static library is built. For now, we need to specify
- # -no-undefined on the libtool link line when we can be certain
- # that all symbols are satisfied, otherwise we get a static library.
- allow_undefined=yes
- ;;
- *)
- allow_undefined=yes
- ;;
- esac
- libtool_args=$nonopt
- base_compile="$nonopt $@"
- compile_command=$nonopt
- finalize_command=$nonopt
-
- compile_rpath=
- finalize_rpath=
- compile_shlibpath=
- finalize_shlibpath=
- convenience=
- old_convenience=
- deplibs=
- old_deplibs=
- compiler_flags=
- linker_flags=
- dllsearchpath=
- lib_search_path=`pwd`
- inst_prefix_dir=
- new_inherited_linker_flags=
-
- avoid_version=no
- bindir=
- dlfiles=
- dlprefiles=
- dlself=no
- export_dynamic=no
- export_symbols=
- export_symbols_regex=
- generated=
- libobjs=
- ltlibs=
- module=no
- no_install=no
- objs=
- os2dllname=
- non_pic_objects=
- precious_files_regex=
- prefer_static_libs=no
- preload=false
- prev=
- prevarg=
- release=
- rpath=
- xrpath=
- perm_rpath=
- temp_rpath=
- thread_safe=no
- vinfo=
- vinfo_number=no
- weak_libs=
- single_module=$wl-single_module
- func_infer_tag $base_compile
-
- # We need to know -static, to get the right output filenames.
- for arg
- do
- case $arg in
- -shared)
- test yes != "$build_libtool_libs" \
- && func_fatal_configuration "cannot build a shared library"
- build_old_libs=no
- break
- ;;
- -all-static | -static | -static-libtool-libs)
- case $arg in
- -all-static)
- if test yes = "$build_libtool_libs" && test -z "$link_static_flag"; then
- func_warning "complete static linking is impossible in this configuration"
- fi
- if test -n "$link_static_flag"; then
- dlopen_self=$dlopen_self_static
- fi
- prefer_static_libs=yes
- ;;
- -static)
- if test -z "$pic_flag" && test -n "$link_static_flag"; then
- dlopen_self=$dlopen_self_static
- fi
- prefer_static_libs=built
- ;;
- -static-libtool-libs)
- if test -z "$pic_flag" && test -n "$link_static_flag"; then
- dlopen_self=$dlopen_self_static
- fi
- prefer_static_libs=yes
- ;;
- esac
- build_libtool_libs=no
- build_old_libs=yes
- break
- ;;
- esac
- done
-
- # See if our shared archives depend on static archives.
- test -n "$old_archive_from_new_cmds" && build_old_libs=yes
-
- # Go through the arguments, transforming them on the way.
- while test "$#" -gt 0; do
- arg=$1
- shift
- func_quote_for_eval "$arg"
- qarg=$func_quote_for_eval_unquoted_result
- func_append libtool_args " $func_quote_for_eval_result"
-
- # If the previous option needs an argument, assign it.
- if test -n "$prev"; then
- case $prev in
- output)
- func_append compile_command " @OUTPUT@"
- func_append finalize_command " @OUTPUT@"
- ;;
- esac
-
- case $prev in
- bindir)
- bindir=$arg
- prev=
- continue
- ;;
- dlfiles|dlprefiles)
- $preload || {
- # Add the symbol object into the linking commands.
- func_append compile_command " @SYMFILE@"
- func_append finalize_command " @SYMFILE@"
- preload=:
- }
- case $arg in
- *.la | *.lo) ;; # We handle these cases below.
- force)
- if test no = "$dlself"; then
- dlself=needless
- export_dynamic=yes
- fi
- prev=
- continue
- ;;
- self)
- if test dlprefiles = "$prev"; then
- dlself=yes
- elif test dlfiles = "$prev" && test yes != "$dlopen_self"; then
- dlself=yes
- else
- dlself=needless
- export_dynamic=yes
- fi
- prev=
- continue
- ;;
- *)
- if test dlfiles = "$prev"; then
- func_append dlfiles " $arg"
- else
- func_append dlprefiles " $arg"
- fi
- prev=
- continue
- ;;
- esac
- ;;
- expsyms)
- export_symbols=$arg
- test -f "$arg" \
- || func_fatal_error "symbol file '$arg' does not exist"
- prev=
- continue
- ;;
- expsyms_regex)
- export_symbols_regex=$arg
- prev=
- continue
- ;;
- framework)
- case $host in
- *-*-darwin*)
- case "$deplibs " in
- *" $qarg.ltframework "*) ;;
- *) func_append deplibs " $qarg.ltframework" # this is fixed later
- ;;
- esac
- ;;
- esac
- prev=
- continue
- ;;
- inst_prefix)
- inst_prefix_dir=$arg
- prev=
- continue
- ;;
- mllvm)
- # Clang does not use LLVM to link, so we can simply discard any
- # '-mllvm $arg' options when doing the link step.
- prev=
- continue
- ;;
- objectlist)
- if test -f "$arg"; then
- save_arg=$arg
- moreargs=
- for fil in `cat "$save_arg"`
- do
-# func_append moreargs " $fil"
- arg=$fil
- # A libtool-controlled object.
-
- # Check to see that this really is a libtool object.
- if func_lalib_unsafe_p "$arg"; then
- pic_object=
- non_pic_object=
-
- # Read the .lo file
- func_source "$arg"
-
- if test -z "$pic_object" ||
- test -z "$non_pic_object" ||
- test none = "$pic_object" &&
- test none = "$non_pic_object"; then
- func_fatal_error "cannot find name of object for '$arg'"
- fi
-
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir=$func_dirname_result
-
- if test none != "$pic_object"; then
- # Prepend the subdirectory the object is found in.
- pic_object=$xdir$pic_object
-
- if test dlfiles = "$prev"; then
- if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then
- func_append dlfiles " $pic_object"
- prev=
- continue
- else
- # If libtool objects are unsupported, then we need to preload.
- prev=dlprefiles
- fi
- fi
-
- # CHECK ME: I think I busted this. -Ossama
- if test dlprefiles = "$prev"; then
- # Preload the old-style object.
- func_append dlprefiles " $pic_object"
- prev=
- fi
-
- # A PIC object.
- func_append libobjs " $pic_object"
- arg=$pic_object
- fi
-
- # Non-PIC object.
- if test none != "$non_pic_object"; then
- # Prepend the subdirectory the object is found in.
- non_pic_object=$xdir$non_pic_object
-
- # A standard non-PIC object
- func_append non_pic_objects " $non_pic_object"
- if test -z "$pic_object" || test none = "$pic_object"; then
- arg=$non_pic_object
- fi
- else
- # If the PIC object exists, use it instead.
- # $xdir was prepended to $pic_object above.
- non_pic_object=$pic_object
- func_append non_pic_objects " $non_pic_object"
- fi
- else
- # Only an error if not doing a dry-run.
- if $opt_dry_run; then
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir=$func_dirname_result
-
- func_lo2o "$arg"
- pic_object=$xdir$objdir/$func_lo2o_result
- non_pic_object=$xdir$func_lo2o_result
- func_append libobjs " $pic_object"
- func_append non_pic_objects " $non_pic_object"
- else
- func_fatal_error "'$arg' is not a valid libtool object"
- fi
- fi
- done
- else
- func_fatal_error "link input file '$arg' does not exist"
- fi
- arg=$save_arg
- prev=
- continue
- ;;
- os2dllname)
- os2dllname=$arg
- prev=
- continue
- ;;
- precious_regex)
- precious_files_regex=$arg
- prev=
- continue
- ;;
- release)
- release=-$arg
- prev=
- continue
- ;;
- rpath | xrpath)
- # We need an absolute path.
- case $arg in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- func_fatal_error "only absolute run-paths are allowed"
- ;;
- esac
- if test rpath = "$prev"; then
- case "$rpath " in
- *" $arg "*) ;;
- *) func_append rpath " $arg" ;;
- esac
- else
- case "$xrpath " in
- *" $arg "*) ;;
- *) func_append xrpath " $arg" ;;
- esac
- fi
- prev=
- continue
- ;;
- shrext)
- shrext_cmds=$arg
- prev=
- continue
- ;;
- weak)
- func_append weak_libs " $arg"
- prev=
- continue
- ;;
- xcclinker)
- func_append linker_flags " $qarg"
- func_append compiler_flags " $qarg"
- prev=
- func_append compile_command " $qarg"
- func_append finalize_command " $qarg"
- continue
- ;;
- xcompiler)
- func_append compiler_flags " $qarg"
- prev=
- func_append compile_command " $qarg"
- func_append finalize_command " $qarg"
- continue
- ;;
- xlinker)
- func_append linker_flags " $qarg"
- func_append compiler_flags " $wl$qarg"
- prev=
- func_append compile_command " $wl$qarg"
- func_append finalize_command " $wl$qarg"
- continue
- ;;
- *)
- eval "$prev=\"\$arg\""
- prev=
- continue
- ;;
- esac
- fi # test -n "$prev"
-
- prevarg=$arg
-
- case $arg in
- -all-static)
- if test -n "$link_static_flag"; then
- # See comment for -static flag below, for more details.
- func_append compile_command " $link_static_flag"
- func_append finalize_command " $link_static_flag"
- fi
- continue
- ;;
-
- -allow-undefined)
- # FIXME: remove this flag sometime in the future.
- func_fatal_error "'-allow-undefined' must not be used because it is the default"
- ;;
-
- -avoid-version)
- avoid_version=yes
- continue
- ;;
-
- -bindir)
- prev=bindir
- continue
- ;;
-
- -dlopen)
- prev=dlfiles
- continue
- ;;
-
- -dlpreopen)
- prev=dlprefiles
- continue
- ;;
-
- -export-dynamic)
- export_dynamic=yes
- continue
- ;;
-
- -export-symbols | -export-symbols-regex)
- if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
- func_fatal_error "more than one -exported-symbols argument is not allowed"
- fi
- if test X-export-symbols = "X$arg"; then
- prev=expsyms
- else
- prev=expsyms_regex
- fi
- continue
- ;;
-
- -framework)
- prev=framework
- continue
- ;;
-
- -inst-prefix-dir)
- prev=inst_prefix
- continue
- ;;
-
- # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
- # so, if we see these flags be careful not to treat them like -L
- -L[A-Z][A-Z]*:*)
- case $with_gcc/$host in
- no/*-*-irix* | /*-*-irix*)
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- ;;
- esac
- continue
- ;;
-
- -L*)
- func_stripname "-L" '' "$arg"
- if test -z "$func_stripname_result"; then
- if test "$#" -gt 0; then
- func_fatal_error "require no space between '-L' and '$1'"
- else
- func_fatal_error "need path for '-L' option"
- fi
- fi
- func_resolve_sysroot "$func_stripname_result"
- dir=$func_resolve_sysroot_result
- # We need an absolute path.
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- absdir=`cd "$dir" && pwd`
- test -z "$absdir" && \
- func_fatal_error "cannot determine absolute directory name of '$dir'"
- dir=$absdir
- ;;
- esac
- case "$deplibs " in
- *" -L$dir "* | *" $arg "*)
- # Will only happen for absolute or sysroot arguments
- ;;
- *)
- # Preserve sysroot, but never include relative directories
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]* | =*) func_append deplibs " $arg" ;;
- *) func_append deplibs " -L$dir" ;;
- esac
- func_append lib_search_path " $dir"
- ;;
- esac
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'`
- case :$dllsearchpath: in
- *":$dir:"*) ;;
- ::) dllsearchpath=$dir;;
- *) func_append dllsearchpath ":$dir";;
- esac
- case :$dllsearchpath: in
- *":$testbindir:"*) ;;
- ::) dllsearchpath=$testbindir;;
- *) func_append dllsearchpath ":$testbindir";;
- esac
- ;;
- esac
- continue
- ;;
-
- -l*)
- if test X-lc = "X$arg" || test X-lm = "X$arg"; then
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*)
- # These systems don't actually have a C or math library (as such)
- continue
- ;;
- *-*-os2*)
- # These systems don't actually have a C library (as such)
- test X-lc = "X$arg" && continue
- ;;
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*)
- # Do not include libc due to us having libc/libc_r.
- test X-lc = "X$arg" && continue
- ;;
- *-*-rhapsody* | *-*-darwin1.[012])
- # Rhapsody C and math libraries are in the System framework
- func_append deplibs " System.ltframework"
- continue
- ;;
- *-*-sco3.2v5* | *-*-sco5v6*)
- # Causes problems with __ctype
- test X-lc = "X$arg" && continue
- ;;
- *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
- # Compiler inserts libc in the correct place for threads to work
- test X-lc = "X$arg" && continue
- ;;
- esac
- elif test X-lc_r = "X$arg"; then
- case $host in
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*)
- # Do not include libc_r directly, use -pthread flag.
- continue
- ;;
- esac
- fi
- func_append deplibs " $arg"
- continue
- ;;
-
- -mllvm)
- prev=mllvm
- continue
- ;;
-
- -module)
- module=yes
- continue
- ;;
-
- # Tru64 UNIX uses -model [arg] to determine the layout of C++
- # classes, name mangling, and exception handling.
- # Darwin uses the -arch flag to determine output architecture.
- -model|-arch|-isysroot|--sysroot)
- func_append compiler_flags " $arg"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- prev=xcompiler
- continue
- ;;
-
- -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
- |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
- func_append compiler_flags " $arg"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- case "$new_inherited_linker_flags " in
- *" $arg "*) ;;
- * ) func_append new_inherited_linker_flags " $arg" ;;
- esac
- continue
- ;;
-
- -multi_module)
- single_module=$wl-multi_module
- continue
- ;;
-
- -no-fast-install)
- fast_install=no
- continue
- ;;
-
- -no-install)
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
- # The PATH hackery in wrapper scripts is required on Windows
- # and Darwin in order for the loader to find any dlls it needs.
- func_warning "'-no-install' is ignored for $host"
- func_warning "assuming '-no-fast-install' instead"
- fast_install=no
- ;;
- *) no_install=yes ;;
- esac
- continue
- ;;
-
- -no-undefined)
- allow_undefined=no
- continue
- ;;
-
- -objectlist)
- prev=objectlist
- continue
- ;;
-
- -os2dllname)
- prev=os2dllname
- continue
- ;;
-
- -o) prev=output ;;
-
- -precious-files-regex)
- prev=precious_regex
- continue
- ;;
-
- -release)
- prev=release
- continue
- ;;
-
- -rpath)
- prev=rpath
- continue
- ;;
-
- -R)
- prev=xrpath
- continue
- ;;
-
- -R*)
- func_stripname '-R' '' "$arg"
- dir=$func_stripname_result
- # We need an absolute path.
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- =*)
- func_stripname '=' '' "$dir"
- dir=$lt_sysroot$func_stripname_result
- ;;
- *)
- func_fatal_error "only absolute run-paths are allowed"
- ;;
- esac
- case "$xrpath " in
- *" $dir "*) ;;
- *) func_append xrpath " $dir" ;;
- esac
- continue
- ;;
-
- -shared)
- # The effects of -shared are defined in a previous loop.
- continue
- ;;
-
- -shrext)
- prev=shrext
- continue
- ;;
-
- -static | -static-libtool-libs)
- # The effects of -static are defined in a previous loop.
- # We used to do the same as -all-static on platforms that
- # didn't have a PIC flag, but the assumption that the effects
- # would be equivalent was wrong. It would break on at least
- # Digital Unix and AIX.
- continue
- ;;
-
- -thread-safe)
- thread_safe=yes
- continue
- ;;
-
- -version-info)
- prev=vinfo
- continue
- ;;
-
- -version-number)
- prev=vinfo
- vinfo_number=yes
- continue
- ;;
-
- -weak)
- prev=weak
- continue
- ;;
-
- -Wc,*)
- func_stripname '-Wc,' '' "$arg"
- args=$func_stripname_result
- arg=
- save_ifs=$IFS; IFS=,
- for flag in $args; do
- IFS=$save_ifs
- func_quote_for_eval "$flag"
- func_append arg " $func_quote_for_eval_result"
- func_append compiler_flags " $func_quote_for_eval_result"
- done
- IFS=$save_ifs
- func_stripname ' ' '' "$arg"
- arg=$func_stripname_result
- ;;
-
- -Wl,*)
- func_stripname '-Wl,' '' "$arg"
- args=$func_stripname_result
- arg=
- save_ifs=$IFS; IFS=,
- for flag in $args; do
- IFS=$save_ifs
- func_quote_for_eval "$flag"
- func_append arg " $wl$func_quote_for_eval_result"
- func_append compiler_flags " $wl$func_quote_for_eval_result"
- func_append linker_flags " $func_quote_for_eval_result"
- done
- IFS=$save_ifs
- func_stripname ' ' '' "$arg"
- arg=$func_stripname_result
- ;;
-
- -Xcompiler)
- prev=xcompiler
- continue
- ;;
-
- -Xlinker)
- prev=xlinker
- continue
- ;;
-
- -XCClinker)
- prev=xcclinker
- continue
- ;;
-
- # -msg_* for osf cc
- -msg_*)
- func_quote_for_eval "$arg"
- arg=$func_quote_for_eval_result
- ;;
-
- # Flags to be passed through unchanged, with rationale:
- # -64, -mips[0-9] enable 64-bit mode for the SGI compiler
- # -r[0-9][0-9]* specify processor for the SGI compiler
- # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler
- # +DA*, +DD* enable 64-bit mode for the HP compiler
- # -q* compiler args for the IBM compiler
- # -m*, -t[45]*, -txscale* architecture-specific flags for GCC
- # -F/path path to uninstalled frameworks, gcc on darwin
- # -p, -pg, --coverage, -fprofile-* profiling flags for GCC
- # -fstack-protector* stack protector flags for GCC
- # @file GCC response files
- # -tp=* Portland pgcc target processor selection
- # --sysroot=* for sysroot support
- # -O*, -g*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
- # -stdlib=* select c++ std lib with clang
- -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
- -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
- -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*)
- func_quote_for_eval "$arg"
- arg=$func_quote_for_eval_result
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- func_append compiler_flags " $arg"
- continue
- ;;
-
- -Z*)
- if test os2 = "`expr $host : '.*\(os2\)'`"; then
- # OS/2 uses -Zxxx to specify OS/2-specific options
- compiler_flags="$compiler_flags $arg"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- case $arg in
- -Zlinker | -Zstack)
- prev=xcompiler
- ;;
- esac
- continue
- else
- # Otherwise treat like 'Some other compiler flag' below
- func_quote_for_eval "$arg"
- arg=$func_quote_for_eval_result
- fi
- ;;
-
- # Some other compiler flag.
- -* | +*)
- func_quote_for_eval "$arg"
- arg=$func_quote_for_eval_result
- ;;
-
- *.$objext)
- # A standard object.
- func_append objs " $arg"
- ;;
-
- *.lo)
- # A libtool-controlled object.
-
- # Check to see that this really is a libtool object.
- if func_lalib_unsafe_p "$arg"; then
- pic_object=
- non_pic_object=
-
- # Read the .lo file
- func_source "$arg"
-
- if test -z "$pic_object" ||
- test -z "$non_pic_object" ||
- test none = "$pic_object" &&
- test none = "$non_pic_object"; then
- func_fatal_error "cannot find name of object for '$arg'"
- fi
-
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir=$func_dirname_result
-
- test none = "$pic_object" || {
- # Prepend the subdirectory the object is found in.
- pic_object=$xdir$pic_object
-
- if test dlfiles = "$prev"; then
- if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then
- func_append dlfiles " $pic_object"
- prev=
- continue
- else
- # If libtool objects are unsupported, then we need to preload.
- prev=dlprefiles
- fi
- fi
-
- # CHECK ME: I think I busted this. -Ossama
- if test dlprefiles = "$prev"; then
- # Preload the old-style object.
- func_append dlprefiles " $pic_object"
- prev=
- fi
-
- # A PIC object.
- func_append libobjs " $pic_object"
- arg=$pic_object
- }
-
- # Non-PIC object.
- if test none != "$non_pic_object"; then
- # Prepend the subdirectory the object is found in.
- non_pic_object=$xdir$non_pic_object
-
- # A standard non-PIC object
- func_append non_pic_objects " $non_pic_object"
- if test -z "$pic_object" || test none = "$pic_object"; then
- arg=$non_pic_object
- fi
- else
- # If the PIC object exists, use it instead.
- # $xdir was prepended to $pic_object above.
- non_pic_object=$pic_object
- func_append non_pic_objects " $non_pic_object"
- fi
- else
- # Only an error if not doing a dry-run.
- if $opt_dry_run; then
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir=$func_dirname_result
-
- func_lo2o "$arg"
- pic_object=$xdir$objdir/$func_lo2o_result
- non_pic_object=$xdir$func_lo2o_result
- func_append libobjs " $pic_object"
- func_append non_pic_objects " $non_pic_object"
- else
- func_fatal_error "'$arg' is not a valid libtool object"
- fi
- fi
- ;;
-
- *.$libext)
- # An archive.
- func_append deplibs " $arg"
- func_append old_deplibs " $arg"
- continue
- ;;
-
- *.la)
- # A libtool-controlled library.
-
- func_resolve_sysroot "$arg"
- if test dlfiles = "$prev"; then
- # This library was specified with -dlopen.
- func_append dlfiles " $func_resolve_sysroot_result"
- prev=
- elif test dlprefiles = "$prev"; then
- # The library was specified with -dlpreopen.
- func_append dlprefiles " $func_resolve_sysroot_result"
- prev=
- else
- func_append deplibs " $func_resolve_sysroot_result"
- fi
- continue
- ;;
-
- # Some other compiler argument.
- *)
- # Unknown arguments in both finalize_command and compile_command need
- # to be aesthetically quoted because they are evaled later.
- func_quote_for_eval "$arg"
- arg=$func_quote_for_eval_result
- ;;
- esac # arg
-
- # Now actually substitute the argument into the commands.
- if test -n "$arg"; then
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- fi
- done # argument parsing loop
-
- test -n "$prev" && \
- func_fatal_help "the '$prevarg' option requires an argument"
-
- if test yes = "$export_dynamic" && test -n "$export_dynamic_flag_spec"; then
- eval arg=\"$export_dynamic_flag_spec\"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- fi
-
- oldlibs=
- # calculate the name of the file, without its directory
- func_basename "$output"
- outputname=$func_basename_result
- libobjs_save=$libobjs
-
- if test -n "$shlibpath_var"; then
- # get the directories listed in $shlibpath_var
- eval shlib_search_path=\`\$ECHO \"\$$shlibpath_var\" \| \$SED \'s/:/ /g\'\`
- else
- shlib_search_path=
- fi
- eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
- eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"
-
- # Definition is injected by LT_CONFIG during libtool generation.
- func_munge_path_list sys_lib_dlsearch_path "$LT_SYS_LIBRARY_PATH"
-
- func_dirname "$output" "/" ""
- output_objdir=$func_dirname_result$objdir
- func_to_tool_file "$output_objdir/"
- tool_output_objdir=$func_to_tool_file_result
- # Create the object directory.
- func_mkdir_p "$output_objdir"
-
- # Determine the type of output
- case $output in
- "")
- func_fatal_help "you must specify an output file"
- ;;
- *.$libext) linkmode=oldlib ;;
- *.lo | *.$objext) linkmode=obj ;;
- *.la) linkmode=lib ;;
- *) linkmode=prog ;; # Anything else should be a program.
- esac
-
- specialdeplibs=
-
- libs=
- # Find all interdependent deplibs by searching for libraries
- # that are linked more than once (e.g. -la -lb -la)
- for deplib in $deplibs; do
- if $opt_preserve_dup_deps; then
- case "$libs " in
- *" $deplib "*) func_append specialdeplibs " $deplib" ;;
- esac
- fi
- func_append libs " $deplib"
- done
-
- if test lib = "$linkmode"; then
- libs="$predeps $libs $compiler_lib_search_path $postdeps"
-
- # Compute libraries that are listed more than once in $predeps
- # $postdeps and mark them as special (i.e., whose duplicates are
- # not to be eliminated).
- pre_post_deps=
- if $opt_duplicate_compiler_generated_deps; then
- for pre_post_dep in $predeps $postdeps; do
- case "$pre_post_deps " in
- *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;;
- esac
- func_append pre_post_deps " $pre_post_dep"
- done
- fi
- pre_post_deps=
- fi
-
- deplibs=
- newdependency_libs=
- newlib_search_path=
- need_relink=no # whether we're linking any uninstalled libtool libraries
- notinst_deplibs= # not-installed libtool libraries
- notinst_path= # paths that contain not-installed libtool libraries
-
- case $linkmode in
- lib)
- passes="conv dlpreopen link"
- for file in $dlfiles $dlprefiles; do
- case $file in
- *.la) ;;
- *)
- func_fatal_help "libraries can '-dlopen' only libtool libraries: $file"
- ;;
- esac
- done
- ;;
- prog)
- compile_deplibs=
- finalize_deplibs=
- alldeplibs=false
- newdlfiles=
- newdlprefiles=
- passes="conv scan dlopen dlpreopen link"
- ;;
- *) passes="conv"
- ;;
- esac
-
- for pass in $passes; do
- # The preopen pass in lib mode reverses $deplibs; put it back here
- # so that -L comes before libs that need it for instance...
- if test lib,link = "$linkmode,$pass"; then
- ## FIXME: Find the place where the list is rebuilt in the wrong
- ## order, and fix it there properly
- tmp_deplibs=
- for deplib in $deplibs; do
- tmp_deplibs="$deplib $tmp_deplibs"
- done
- deplibs=$tmp_deplibs
- fi
-
- if test lib,link = "$linkmode,$pass" ||
- test prog,scan = "$linkmode,$pass"; then
- libs=$deplibs
- deplibs=
- fi
- if test prog = "$linkmode"; then
- case $pass in
- dlopen) libs=$dlfiles ;;
- dlpreopen) libs=$dlprefiles ;;
- link) libs="$deplibs %DEPLIBS% $dependency_libs" ;;
- esac
- fi
- if test lib,dlpreopen = "$linkmode,$pass"; then
- # Collect and forward deplibs of preopened libtool libs
- for lib in $dlprefiles; do
- # Ignore non-libtool-libs
- dependency_libs=
- func_resolve_sysroot "$lib"
- case $lib in
- *.la) func_source "$func_resolve_sysroot_result" ;;
- esac
-
- # Collect preopened libtool deplibs, except any this library
- # has declared as weak libs
- for deplib in $dependency_libs; do
- func_basename "$deplib"
- deplib_base=$func_basename_result
- case " $weak_libs " in
- *" $deplib_base "*) ;;
- *) func_append deplibs " $deplib" ;;
- esac
- done
- done
- libs=$dlprefiles
- fi
- if test dlopen = "$pass"; then
- # Collect dlpreopened libraries
- save_deplibs=$deplibs
- deplibs=
- fi
-
- for deplib in $libs; do
- lib=
- found=false
- case $deplib in
- -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
- |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
- if test prog,link = "$linkmode,$pass"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- func_append compiler_flags " $deplib"
- if test lib = "$linkmode"; then
- case "$new_inherited_linker_flags " in
- *" $deplib "*) ;;
- * ) func_append new_inherited_linker_flags " $deplib" ;;
- esac
- fi
- fi
- continue
- ;;
- -l*)
- if test lib != "$linkmode" && test prog != "$linkmode"; then
- func_warning "'-l' is ignored for archives/objects"
- continue
- fi
- func_stripname '-l' '' "$deplib"
- name=$func_stripname_result
- if test lib = "$linkmode"; then
- searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path"
- else
- searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path"
- fi
- for searchdir in $searchdirs; do
- for search_ext in .la $std_shrext .so .a; do
- # Search the libtool library
- lib=$searchdir/lib$name$search_ext
- if test -f "$lib"; then
- if test .la = "$search_ext"; then
- found=:
- else
- found=false
- fi
- break 2
- fi
- done
- done
- if $found; then
- # deplib is a libtool library
- # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib,
- # We need to do some special things here, and not later.
- if test yes = "$allow_libtool_libs_with_static_runtimes"; then
- case " $predeps $postdeps " in
- *" $deplib "*)
- if func_lalib_p "$lib"; then
- library_names=
- old_library=
- func_source "$lib"
- for l in $old_library $library_names; do
- ll=$l
- done
- if test "X$ll" = "X$old_library"; then # only static version available
- found=false
- func_dirname "$lib" "" "."
- ladir=$func_dirname_result
- lib=$ladir/$old_library
- if test prog,link = "$linkmode,$pass"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs"
- fi
- continue
- fi
- fi
- ;;
- *) ;;
- esac
- fi
- else
- # deplib doesn't seem to be a libtool library
- if test prog,link = "$linkmode,$pass"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs"
- fi
- continue
- fi
- ;; # -l
- *.ltframework)
- if test prog,link = "$linkmode,$pass"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- if test lib = "$linkmode"; then
- case "$new_inherited_linker_flags " in
- *" $deplib "*) ;;
- * ) func_append new_inherited_linker_flags " $deplib" ;;
- esac
- fi
- fi
- continue
- ;;
- -L*)
- case $linkmode in
- lib)
- deplibs="$deplib $deplibs"
- test conv = "$pass" && continue
- newdependency_libs="$deplib $newdependency_libs"
- func_stripname '-L' '' "$deplib"
- func_resolve_sysroot "$func_stripname_result"
- func_append newlib_search_path " $func_resolve_sysroot_result"
- ;;
- prog)
- if test conv = "$pass"; then
- deplibs="$deplib $deplibs"
- continue
- fi
- if test scan = "$pass"; then
- deplibs="$deplib $deplibs"
- else
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- fi
- func_stripname '-L' '' "$deplib"
- func_resolve_sysroot "$func_stripname_result"
- func_append newlib_search_path " $func_resolve_sysroot_result"
- ;;
- *)
- func_warning "'-L' is ignored for archives/objects"
- ;;
- esac # linkmode
- continue
- ;; # -L
- -R*)
- if test link = "$pass"; then
- func_stripname '-R' '' "$deplib"
- func_resolve_sysroot "$func_stripname_result"
- dir=$func_resolve_sysroot_result
- # Make sure the xrpath contains only unique directories.
- case "$xrpath " in
- *" $dir "*) ;;
- *) func_append xrpath " $dir" ;;
- esac
- fi
- deplibs="$deplib $deplibs"
- continue
- ;;
- *.la)
- func_resolve_sysroot "$deplib"
- lib=$func_resolve_sysroot_result
- ;;
- *.$libext)
- if test conv = "$pass"; then
- deplibs="$deplib $deplibs"
- continue
- fi
- case $linkmode in
- lib)
- # Linking convenience modules into shared libraries is allowed,
- # but linking other static libraries is non-portable.
- case " $dlpreconveniencelibs " in
- *" $deplib "*) ;;
- *)
- valid_a_lib=false
- case $deplibs_check_method in
- match_pattern*)
- set dummy $deplibs_check_method; shift
- match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
- if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \
- | $EGREP "$match_pattern_regex" > /dev/null; then
- valid_a_lib=:
- fi
- ;;
- pass_all)
- valid_a_lib=:
- ;;
- esac
- if $valid_a_lib; then
- echo
- $ECHO "*** Warning: Linking the shared library $output against the"
- $ECHO "*** static library $deplib is not portable!"
- deplibs="$deplib $deplibs"
- else
- echo
- $ECHO "*** Warning: Trying to link with static lib archive $deplib."
- echo "*** I have the capability to make that library automatically link in when"
- echo "*** you link to this library. But I can only do this if you have a"
- echo "*** shared version of the library, which you do not appear to have"
- echo "*** because the file extensions .$libext of this argument makes me believe"
- echo "*** that it is just a static archive that I should not use here."
- fi
- ;;
- esac
- continue
- ;;
- prog)
- if test link != "$pass"; then
- deplibs="$deplib $deplibs"
- else
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- fi
- continue
- ;;
- esac # linkmode
- ;; # *.$libext
- *.lo | *.$objext)
- if test conv = "$pass"; then
- deplibs="$deplib $deplibs"
- elif test prog = "$linkmode"; then
- if test dlpreopen = "$pass" || test yes != "$dlopen_support" || test no = "$build_libtool_libs"; then
- # If there is no dlopen support or we're linking statically,
- # we need to preload.
- func_append newdlprefiles " $deplib"
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- func_append newdlfiles " $deplib"
- fi
- fi
- continue
- ;;
- %DEPLIBS%)
- alldeplibs=:
- continue
- ;;
- esac # case $deplib
-
- $found || test -f "$lib" \
- || func_fatal_error "cannot find the library '$lib' or unhandled argument '$deplib'"
-
- # Check to see that this really is a libtool archive.
- func_lalib_unsafe_p "$lib" \
- || func_fatal_error "'$lib' is not a valid libtool archive"
-
- func_dirname "$lib" "" "."
- ladir=$func_dirname_result
-
- dlname=
- dlopen=
- dlpreopen=
- libdir=
- library_names=
- old_library=
- inherited_linker_flags=
- # If the library was installed with an old release of libtool,
- # it will not redefine variables installed, or shouldnotlink
- installed=yes
- shouldnotlink=no
- avoidtemprpath=
-
-
- # Read the .la file
- func_source "$lib"
-
- # Convert "-framework foo" to "foo.ltframework"
- if test -n "$inherited_linker_flags"; then
- tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'`
- for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do
- case " $new_inherited_linker_flags " in
- *" $tmp_inherited_linker_flag "*) ;;
- *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";;
- esac
- done
- fi
- dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
- if test lib,link = "$linkmode,$pass" ||
- test prog,scan = "$linkmode,$pass" ||
- { test prog != "$linkmode" && test lib != "$linkmode"; }; then
- test -n "$dlopen" && func_append dlfiles " $dlopen"
- test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen"
- fi
-
- if test conv = "$pass"; then
- # Only check for convenience libraries
- deplibs="$lib $deplibs"
- if test -z "$libdir"; then
- if test -z "$old_library"; then
- func_fatal_error "cannot find name of link library for '$lib'"
- fi
- # It is a libtool convenience library, so add in its objects.
- func_append convenience " $ladir/$objdir/$old_library"
- func_append old_convenience " $ladir/$objdir/$old_library"
- elif test prog != "$linkmode" && test lib != "$linkmode"; then
- func_fatal_error "'$lib' is not a convenience library"
- fi
- tmp_libs=
- for deplib in $dependency_libs; do
- deplibs="$deplib $deplibs"
- if $opt_preserve_dup_deps; then
- case "$tmp_libs " in
- *" $deplib "*) func_append specialdeplibs " $deplib" ;;
- esac
- fi
- func_append tmp_libs " $deplib"
- done
- continue
- fi # $pass = conv
-
-
- # Get the name of the library we link against.
- linklib=
- if test -n "$old_library" &&
- { test yes = "$prefer_static_libs" ||
- test built,no = "$prefer_static_libs,$installed"; }; then
- linklib=$old_library
- else
- for l in $old_library $library_names; do
- linklib=$l
- done
- fi
- if test -z "$linklib"; then
- func_fatal_error "cannot find name of link library for '$lib'"
- fi
-
- # This library was specified with -dlopen.
- if test dlopen = "$pass"; then
- test -z "$libdir" \
- && func_fatal_error "cannot -dlopen a convenience library: '$lib'"
- if test -z "$dlname" ||
- test yes != "$dlopen_support" ||
- test no = "$build_libtool_libs"
- then
- # If there is no dlname, no dlopen support or we're linking
- # statically, we need to preload. We also need to preload any
- # dependent libraries so libltdl's deplib preloader doesn't
- # bomb out in the load deplibs phase.
- func_append dlprefiles " $lib $dependency_libs"
- else
- func_append newdlfiles " $lib"
- fi
- continue
- fi # $pass = dlopen
-
- # We need an absolute path.
- case $ladir in
- [\\/]* | [A-Za-z]:[\\/]*) abs_ladir=$ladir ;;
- *)
- abs_ladir=`cd "$ladir" && pwd`
- if test -z "$abs_ladir"; then
- func_warning "cannot determine absolute directory name of '$ladir'"
- func_warning "passing it literally to the linker, although it might fail"
- abs_ladir=$ladir
- fi
- ;;
- esac
- func_basename "$lib"
- laname=$func_basename_result
-
- # Find the relevant object directory and library name.
- if test yes = "$installed"; then
- if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
- func_warning "library '$lib' was moved."
- dir=$ladir
- absdir=$abs_ladir
- libdir=$abs_ladir
- else
- dir=$lt_sysroot$libdir
- absdir=$lt_sysroot$libdir
- fi
- test yes = "$hardcode_automatic" && avoidtemprpath=yes
- else
- if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then
- dir=$ladir
- absdir=$abs_ladir
- # Remove this search path later
- func_append notinst_path " $abs_ladir"
- else
- dir=$ladir/$objdir
- absdir=$abs_ladir/$objdir
- # Remove this search path later
- func_append notinst_path " $abs_ladir"
- fi
- fi # $installed = yes
- func_stripname 'lib' '.la' "$laname"
- name=$func_stripname_result
-
- # This library was specified with -dlpreopen.
- if test dlpreopen = "$pass"; then
- if test -z "$libdir" && test prog = "$linkmode"; then
- func_fatal_error "only libraries may -dlpreopen a convenience library: '$lib'"
- fi
- case $host in
- # special handling for platforms with PE-DLLs.
- *cygwin* | *mingw* | *cegcc* )
- # Linker will automatically link against shared library if both
- # static and shared are present. Therefore, ensure we extract
- # symbols from the import library if a shared library is present
- # (otherwise, the dlopen module name will be incorrect). We do
- # this by putting the import library name into $newdlprefiles.
- # We recover the dlopen module name by 'saving' the la file
- # name in a special purpose variable, and (later) extracting the
- # dlname from the la file.
- if test -n "$dlname"; then
- func_tr_sh "$dir/$linklib"
- eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname"
- func_append newdlprefiles " $dir/$linklib"
- else
- func_append newdlprefiles " $dir/$old_library"
- # Keep a list of preopened convenience libraries to check
- # that they are being used correctly in the link pass.
- test -z "$libdir" && \
- func_append dlpreconveniencelibs " $dir/$old_library"
- fi
- ;;
- * )
- # Prefer using a static library (so that no silly _DYNAMIC symbols
- # are required to link).
- if test -n "$old_library"; then
- func_append newdlprefiles " $dir/$old_library"
- # Keep a list of preopened convenience libraries to check
- # that they are being used correctly in the link pass.
- test -z "$libdir" && \
- func_append dlpreconveniencelibs " $dir/$old_library"
- # Otherwise, use the dlname, so that lt_dlopen finds it.
- elif test -n "$dlname"; then
- func_append newdlprefiles " $dir/$dlname"
- else
- func_append newdlprefiles " $dir/$linklib"
- fi
- ;;
- esac
- fi # $pass = dlpreopen
-
- if test -z "$libdir"; then
- # Link the convenience library
- if test lib = "$linkmode"; then
- deplibs="$dir/$old_library $deplibs"
- elif test prog,link = "$linkmode,$pass"; then
- compile_deplibs="$dir/$old_library $compile_deplibs"
- finalize_deplibs="$dir/$old_library $finalize_deplibs"
- else
- deplibs="$lib $deplibs" # used for prog,scan pass
- fi
- continue
- fi
-
-
- if test prog = "$linkmode" && test link != "$pass"; then
- func_append newlib_search_path " $ladir"
- deplibs="$lib $deplibs"
-
- linkalldeplibs=false
- if test no != "$link_all_deplibs" || test -z "$library_names" ||
- test no = "$build_libtool_libs"; then
- linkalldeplibs=:
- fi
-
- tmp_libs=
- for deplib in $dependency_libs; do
- case $deplib in
- -L*) func_stripname '-L' '' "$deplib"
- func_resolve_sysroot "$func_stripname_result"
- func_append newlib_search_path " $func_resolve_sysroot_result"
- ;;
- esac
- # Need to link against all dependency_libs?
- if $linkalldeplibs; then
- deplibs="$deplib $deplibs"
- else
- # Need to hardcode shared library paths
- # or/and link against static libraries
- newdependency_libs="$deplib $newdependency_libs"
- fi
- if $opt_preserve_dup_deps; then
- case "$tmp_libs " in
- *" $deplib "*) func_append specialdeplibs " $deplib" ;;
- esac
- fi
- func_append tmp_libs " $deplib"
- done # for deplib
- continue
- fi # $linkmode = prog...
-
- if test prog,link = "$linkmode,$pass"; then
- if test -n "$library_names" &&
- { { test no = "$prefer_static_libs" ||
- test built,yes = "$prefer_static_libs,$installed"; } ||
- test -z "$old_library"; }; then
- # We need to hardcode the library path
- if test -n "$shlibpath_var" && test -z "$avoidtemprpath"; then
- # Make sure the rpath contains only unique directories.
- case $temp_rpath: in
- *"$absdir:"*) ;;
- *) func_append temp_rpath "$absdir:" ;;
- esac
- fi
-
- # Hardcode the library path.
- # Skip directories that are in the system default run-time
- # search path.
- case " $sys_lib_dlsearch_path " in
- *" $absdir "*) ;;
- *)
- case "$compile_rpath " in
- *" $absdir "*) ;;
- *) func_append compile_rpath " $absdir" ;;
- esac
- ;;
- esac
- case " $sys_lib_dlsearch_path " in
- *" $libdir "*) ;;
- *)
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) func_append finalize_rpath " $libdir" ;;
- esac
- ;;
- esac
- fi # $linkmode,$pass = prog,link...
-
- if $alldeplibs &&
- { test pass_all = "$deplibs_check_method" ||
- { test yes = "$build_libtool_libs" &&
- test -n "$library_names"; }; }; then
- # We only need to search for static libraries
- continue
- fi
- fi
-
- link_static=no # Whether the deplib will be linked statically
- use_static_libs=$prefer_static_libs
- if test built = "$use_static_libs" && test yes = "$installed"; then
- use_static_libs=no
- fi
- if test -n "$library_names" &&
- { test no = "$use_static_libs" || test -z "$old_library"; }; then
- case $host in
- *cygwin* | *mingw* | *cegcc* | *os2*)
- # No point in relinking DLLs because paths are not encoded
- func_append notinst_deplibs " $lib"
- need_relink=no
- ;;
- *)
- if test no = "$installed"; then
- func_append notinst_deplibs " $lib"
- need_relink=yes
- fi
- ;;
- esac
- # This is a shared library
-
- # Warn about portability, can't link against -module's on some
- # systems (darwin). Don't bleat about dlopened modules though!
- dlopenmodule=
- for dlpremoduletest in $dlprefiles; do
- if test "X$dlpremoduletest" = "X$lib"; then
- dlopenmodule=$dlpremoduletest
- break
- fi
- done
- if test -z "$dlopenmodule" && test yes = "$shouldnotlink" && test link = "$pass"; then
- echo
- if test prog = "$linkmode"; then
- $ECHO "*** Warning: Linking the executable $output against the loadable module"
- else
- $ECHO "*** Warning: Linking the shared library $output against the loadable module"
- fi
- $ECHO "*** $linklib is not portable!"
- fi
- if test lib = "$linkmode" &&
- test yes = "$hardcode_into_libs"; then
- # Hardcode the library path.
- # Skip directories that are in the system default run-time
- # search path.
- case " $sys_lib_dlsearch_path " in
- *" $absdir "*) ;;
- *)
- case "$compile_rpath " in
- *" $absdir "*) ;;
- *) func_append compile_rpath " $absdir" ;;
- esac
- ;;
- esac
- case " $sys_lib_dlsearch_path " in
- *" $libdir "*) ;;
- *)
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) func_append finalize_rpath " $libdir" ;;
- esac
- ;;
- esac
- fi
-
- if test -n "$old_archive_from_expsyms_cmds"; then
- # figure out the soname
- set dummy $library_names
- shift
- realname=$1
- shift
- libname=`eval "\\$ECHO \"$libname_spec\""`
- # use dlname if we got it. it's perfectly good, no?
- if test -n "$dlname"; then
- soname=$dlname
- elif test -n "$soname_spec"; then
- # bleh windows
- case $host in
- *cygwin* | mingw* | *cegcc* | *os2*)
- func_arith $current - $age
- major=$func_arith_result
- versuffix=-$major
- ;;
- esac
- eval soname=\"$soname_spec\"
- else
- soname=$realname
- fi
-
- # Make a new name for the extract_expsyms_cmds to use
- soroot=$soname
- func_basename "$soroot"
- soname=$func_basename_result
- func_stripname 'lib' '.dll' "$soname"
- newlib=libimp-$func_stripname_result.a
-
- # If the library has no export list, then create one now
- if test -f "$output_objdir/$soname-def"; then :
- else
- func_verbose "extracting exported symbol list from '$soname'"
- func_execute_cmds "$extract_expsyms_cmds" 'exit $?'
- fi
-
- # Create $newlib
- if test -f "$output_objdir/$newlib"; then :; else
- func_verbose "generating import library for '$soname'"
- func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?'
- fi
- # make sure the library variables are pointing to the new library
- dir=$output_objdir
- linklib=$newlib
- fi # test -n "$old_archive_from_expsyms_cmds"
-
- if test prog = "$linkmode" || test relink != "$opt_mode"; then
- add_shlibpath=
- add_dir=
- add=
- lib_linked=yes
- case $hardcode_action in
- immediate | unsupported)
- if test no = "$hardcode_direct"; then
- add=$dir/$linklib
- case $host in
- *-*-sco3.2v5.0.[024]*) add_dir=-L$dir ;;
- *-*-sysv4*uw2*) add_dir=-L$dir ;;
- *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \
- *-*-unixware7*) add_dir=-L$dir ;;
- *-*-darwin* )
- # if the lib is a (non-dlopened) module then we cannot
- # link against it, someone is ignoring the earlier warnings
- if /usr/bin/file -L $add 2> /dev/null |
- $GREP ": [^:]* bundle" >/dev/null; then
- if test "X$dlopenmodule" != "X$lib"; then
- $ECHO "*** Warning: lib $linklib is a module, not a shared library"
- if test -z "$old_library"; then
- echo
- echo "*** And there doesn't seem to be a static archive available"
- echo "*** The link will probably fail, sorry"
- else
- add=$dir/$old_library
- fi
- elif test -n "$old_library"; then
- add=$dir/$old_library
- fi
- fi
- esac
- elif test no = "$hardcode_minus_L"; then
- case $host in
- *-*-sunos*) add_shlibpath=$dir ;;
- esac
- add_dir=-L$dir
- add=-l$name
- elif test no = "$hardcode_shlibpath_var"; then
- add_shlibpath=$dir
- add=-l$name
- else
- lib_linked=no
- fi
- ;;
- relink)
- if test yes = "$hardcode_direct" &&
- test no = "$hardcode_direct_absolute"; then
- add=$dir/$linklib
- elif test yes = "$hardcode_minus_L"; then
- add_dir=-L$absdir
- # Try looking first in the location we're being installed to.
- if test -n "$inst_prefix_dir"; then
- case $libdir in
- [\\/]*)
- func_append add_dir " -L$inst_prefix_dir$libdir"
- ;;
- esac
- fi
- add=-l$name
- elif test yes = "$hardcode_shlibpath_var"; then
- add_shlibpath=$dir
- add=-l$name
- else
- lib_linked=no
- fi
- ;;
- *) lib_linked=no ;;
- esac
-
- if test yes != "$lib_linked"; then
- func_fatal_configuration "unsupported hardcode properties"
- fi
-
- if test -n "$add_shlibpath"; then
- case :$compile_shlibpath: in
- *":$add_shlibpath:"*) ;;
- *) func_append compile_shlibpath "$add_shlibpath:" ;;
- esac
- fi
- if test prog = "$linkmode"; then
- test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
- test -n "$add" && compile_deplibs="$add $compile_deplibs"
- else
- test -n "$add_dir" && deplibs="$add_dir $deplibs"
- test -n "$add" && deplibs="$add $deplibs"
- if test yes != "$hardcode_direct" &&
- test yes != "$hardcode_minus_L" &&
- test yes = "$hardcode_shlibpath_var"; then
- case :$finalize_shlibpath: in
- *":$libdir:"*) ;;
- *) func_append finalize_shlibpath "$libdir:" ;;
- esac
- fi
- fi
- fi
-
- if test prog = "$linkmode" || test relink = "$opt_mode"; then
- add_shlibpath=
- add_dir=
- add=
- # Finalize command for both is simple: just hardcode it.
- if test yes = "$hardcode_direct" &&
- test no = "$hardcode_direct_absolute"; then
- add=$libdir/$linklib
- elif test yes = "$hardcode_minus_L"; then
- add_dir=-L$libdir
- add=-l$name
- elif test yes = "$hardcode_shlibpath_var"; then
- case :$finalize_shlibpath: in
- *":$libdir:"*) ;;
- *) func_append finalize_shlibpath "$libdir:" ;;
- esac
- add=-l$name
- elif test yes = "$hardcode_automatic"; then
- if test -n "$inst_prefix_dir" &&
- test -f "$inst_prefix_dir$libdir/$linklib"; then
- add=$inst_prefix_dir$libdir/$linklib
- else
- add=$libdir/$linklib
- fi
- else
- # We cannot seem to hardcode it, guess we'll fake it.
- add_dir=-L$libdir
- # Try looking first in the location we're being installed to.
- if test -n "$inst_prefix_dir"; then
- case $libdir in
- [\\/]*)
- func_append add_dir " -L$inst_prefix_dir$libdir"
- ;;
- esac
- fi
- add=-l$name
- fi
-
- if test prog = "$linkmode"; then
- test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
- test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
- else
- test -n "$add_dir" && deplibs="$add_dir $deplibs"
- test -n "$add" && deplibs="$add $deplibs"
- fi
- fi
- elif test prog = "$linkmode"; then
- # Here we assume that one of hardcode_direct or hardcode_minus_L
- # is not unsupported. This is valid on all known static and
- # shared platforms.
- if test unsupported != "$hardcode_direct"; then
- test -n "$old_library" && linklib=$old_library
- compile_deplibs="$dir/$linklib $compile_deplibs"
- finalize_deplibs="$dir/$linklib $finalize_deplibs"
- else
- compile_deplibs="-l$name -L$dir $compile_deplibs"
- finalize_deplibs="-l$name -L$dir $finalize_deplibs"
- fi
- elif test yes = "$build_libtool_libs"; then
- # Not a shared library
- if test pass_all != "$deplibs_check_method"; then
- # We're trying link a shared library against a static one
- # but the system doesn't support it.
-
- # Just print a warning and add the library to dependency_libs so
- # that the program can be linked against the static library.
- echo
- $ECHO "*** Warning: This system cannot link to static lib archive $lib."
- echo "*** I have the capability to make that library automatically link in when"
- echo "*** you link to this library. But I can only do this if you have a"
- echo "*** shared version of the library, which you do not appear to have."
- if test yes = "$module"; then
- echo "*** But as you try to build a module library, libtool will still create "
- echo "*** a static module, that should work as long as the dlopening application"
- echo "*** is linked with the -dlopen flag to resolve symbols at runtime."
- if test -z "$global_symbol_pipe"; then
- echo
- echo "*** However, this would only work if libtool was able to extract symbol"
- echo "*** lists from a program, using 'nm' or equivalent, but libtool could"
- echo "*** not find such a program. So, this module is probably useless."
- echo "*** 'nm' from GNU binutils and a full rebuild may help."
- fi
- if test no = "$build_old_libs"; then
- build_libtool_libs=module
- build_old_libs=yes
- else
- build_libtool_libs=no
- fi
- fi
- else
- deplibs="$dir/$old_library $deplibs"
- link_static=yes
- fi
- fi # link shared/static library?
-
- if test lib = "$linkmode"; then
- if test -n "$dependency_libs" &&
- { test yes != "$hardcode_into_libs" ||
- test yes = "$build_old_libs" ||
- test yes = "$link_static"; }; then
- # Extract -R from dependency_libs
- temp_deplibs=
- for libdir in $dependency_libs; do
- case $libdir in
- -R*) func_stripname '-R' '' "$libdir"
- temp_xrpath=$func_stripname_result
- case " $xrpath " in
- *" $temp_xrpath "*) ;;
- *) func_append xrpath " $temp_xrpath";;
- esac;;
- *) func_append temp_deplibs " $libdir";;
- esac
- done
- dependency_libs=$temp_deplibs
- fi
-
- func_append newlib_search_path " $absdir"
- # Link against this library
- test no = "$link_static" && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
- # ... and its dependency_libs
- tmp_libs=
- for deplib in $dependency_libs; do
- newdependency_libs="$deplib $newdependency_libs"
- case $deplib in
- -L*) func_stripname '-L' '' "$deplib"
- func_resolve_sysroot "$func_stripname_result";;
- *) func_resolve_sysroot "$deplib" ;;
- esac
- if $opt_preserve_dup_deps; then
- case "$tmp_libs " in
- *" $func_resolve_sysroot_result "*)
- func_append specialdeplibs " $func_resolve_sysroot_result" ;;
- esac
- fi
- func_append tmp_libs " $func_resolve_sysroot_result"
- done
-
- if test no != "$link_all_deplibs"; then
- # Add the search paths of all dependency libraries
- for deplib in $dependency_libs; do
- path=
- case $deplib in
- -L*) path=$deplib ;;
- *.la)
- func_resolve_sysroot "$deplib"
- deplib=$func_resolve_sysroot_result
- func_dirname "$deplib" "" "."
- dir=$func_dirname_result
- # We need an absolute path.
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) absdir=$dir ;;
- *)
- absdir=`cd "$dir" && pwd`
- if test -z "$absdir"; then
- func_warning "cannot determine absolute directory name of '$dir'"
- absdir=$dir
- fi
- ;;
- esac
- if $GREP "^installed=no" $deplib > /dev/null; then
- case $host in
- *-*-darwin*)
- depdepl=
- eval deplibrary_names=`$SED -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
- if test -n "$deplibrary_names"; then
- for tmp in $deplibrary_names; do
- depdepl=$tmp
- done
- if test -f "$absdir/$objdir/$depdepl"; then
- depdepl=$absdir/$objdir/$depdepl
- darwin_install_name=`$OTOOL -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
- if test -z "$darwin_install_name"; then
- darwin_install_name=`$OTOOL64 -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
- fi
- func_append compiler_flags " $wl-dylib_file $wl$darwin_install_name:$depdepl"
- func_append linker_flags " -dylib_file $darwin_install_name:$depdepl"
- path=
- fi
- fi
- ;;
- *)
- path=-L$absdir/$objdir
- ;;
- esac
- else
- eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
- test -z "$libdir" && \
- func_fatal_error "'$deplib' is not a valid libtool archive"
- test "$absdir" != "$libdir" && \
- func_warning "'$deplib' seems to be moved"
-
- path=-L$absdir
- fi
- ;;
- esac
- case " $deplibs " in
- *" $path "*) ;;
- *) deplibs="$path $deplibs" ;;
- esac
- done
- fi # link_all_deplibs != no
- fi # linkmode = lib
- done # for deplib in $libs
- if test link = "$pass"; then
- if test prog = "$linkmode"; then
- compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
- finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
- else
- compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
- fi
- fi
- dependency_libs=$newdependency_libs
- if test dlpreopen = "$pass"; then
- # Link the dlpreopened libraries before other libraries
- for deplib in $save_deplibs; do
- deplibs="$deplib $deplibs"
- done
- fi
- if test dlopen != "$pass"; then
- test conv = "$pass" || {
- # Make sure lib_search_path contains only unique directories.
- lib_search_path=
- for dir in $newlib_search_path; do
- case "$lib_search_path " in
- *" $dir "*) ;;
- *) func_append lib_search_path " $dir" ;;
- esac
- done
- newlib_search_path=
- }
-
- if test prog,link = "$linkmode,$pass"; then
- vars="compile_deplibs finalize_deplibs"
- else
- vars=deplibs
- fi
- for var in $vars dependency_libs; do
- # Add libraries to $var in reverse order
- eval tmp_libs=\"\$$var\"
- new_libs=
- for deplib in $tmp_libs; do
- # FIXME: Pedantically, this is the right thing to do, so
- # that some nasty dependency loop isn't accidentally
- # broken:
- #new_libs="$deplib $new_libs"
- # Pragmatically, this seems to cause very few problems in
- # practice:
- case $deplib in
- -L*) new_libs="$deplib $new_libs" ;;
- -R*) ;;
- *)
- # And here is the reason: when a library appears more
- # than once as an explicit dependence of a library, or
- # is implicitly linked in more than once by the
- # compiler, it is considered special, and multiple
- # occurrences thereof are not removed. Compare this
- # with having the same library being listed as a
- # dependency of multiple other libraries: in this case,
- # we know (pedantically, we assume) the library does not
- # need to be listed more than once, so we keep only the
- # last copy. This is not always right, but it is rare
- # enough that we require users that really mean to play
- # such unportable linking tricks to link the library
- # using -Wl,-lname, so that libtool does not consider it
- # for duplicate removal.
- case " $specialdeplibs " in
- *" $deplib "*) new_libs="$deplib $new_libs" ;;
- *)
- case " $new_libs " in
- *" $deplib "*) ;;
- *) new_libs="$deplib $new_libs" ;;
- esac
- ;;
- esac
- ;;
- esac
- done
- tmp_libs=
- for deplib in $new_libs; do
- case $deplib in
- -L*)
- case " $tmp_libs " in
- *" $deplib "*) ;;
- *) func_append tmp_libs " $deplib" ;;
- esac
- ;;
- *) func_append tmp_libs " $deplib" ;;
- esac
- done
- eval $var=\"$tmp_libs\"
- done # for var
- fi
-
- # Add Sun CC postdeps if required:
- test CXX = "$tagname" && {
- case $host_os in
- linux*)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*) # Sun C++ 5.9
- func_suncc_cstd_abi
-
- if test no != "$suncc_use_cstd_abi"; then
- func_append postdeps ' -library=Cstd -library=Crun'
- fi
- ;;
- esac
- ;;
-
- solaris*)
- func_cc_basename "$CC"
- case $func_cc_basename_result in
- CC* | sunCC*)
- func_suncc_cstd_abi
-
- if test no != "$suncc_use_cstd_abi"; then
- func_append postdeps ' -library=Cstd -library=Crun'
- fi
- ;;
- esac
- ;;
- esac
- }
-
- # Last step: remove runtime libs from dependency_libs
- # (they stay in deplibs)
- tmp_libs=
- for i in $dependency_libs; do
- case " $predeps $postdeps $compiler_lib_search_path " in
- *" $i "*)
- i=
- ;;
- esac
- if test -n "$i"; then
- func_append tmp_libs " $i"
- fi
- done
- dependency_libs=$tmp_libs
- done # for pass
- if test prog = "$linkmode"; then
- dlfiles=$newdlfiles
- fi
- if test prog = "$linkmode" || test lib = "$linkmode"; then
- dlprefiles=$newdlprefiles
- fi
-
- case $linkmode in
- oldlib)
- if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
- func_warning "'-dlopen' is ignored for archives"
- fi
-
- case " $deplibs" in
- *\ -l* | *\ -L*)
- func_warning "'-l' and '-L' are ignored for archives" ;;
- esac
-
- test -n "$rpath" && \
- func_warning "'-rpath' is ignored for archives"
-
- test -n "$xrpath" && \
- func_warning "'-R' is ignored for archives"
-
- test -n "$vinfo" && \
- func_warning "'-version-info/-version-number' is ignored for archives"
-
- test -n "$release" && \
- func_warning "'-release' is ignored for archives"
-
- test -n "$export_symbols$export_symbols_regex" && \
- func_warning "'-export-symbols' is ignored for archives"
-
- # Now set the variables for building old libraries.
- build_libtool_libs=no
- oldlibs=$output
- func_append objs "$old_deplibs"
- ;;
-
- lib)
- # Make sure we only generate libraries of the form 'libNAME.la'.
- case $outputname in
- lib*)
- func_stripname 'lib' '.la' "$outputname"
- name=$func_stripname_result
- eval shared_ext=\"$shrext_cmds\"
- eval libname=\"$libname_spec\"
- ;;
- *)
- test no = "$module" \
- && func_fatal_help "libtool library '$output' must begin with 'lib'"
-
- if test no != "$need_lib_prefix"; then
- # Add the "lib" prefix for modules if required
- func_stripname '' '.la' "$outputname"
- name=$func_stripname_result
- eval shared_ext=\"$shrext_cmds\"
- eval libname=\"$libname_spec\"
- else
- func_stripname '' '.la' "$outputname"
- libname=$func_stripname_result
- fi
- ;;
- esac
-
- if test -n "$objs"; then
- if test pass_all != "$deplibs_check_method"; then
- func_fatal_error "cannot build libtool library '$output' from non-libtool objects on this host:$objs"
- else
- echo
- $ECHO "*** Warning: Linking the shared library $output against the non-libtool"
- $ECHO "*** objects $objs is not portable!"
- func_append libobjs " $objs"
- fi
- fi
-
- test no = "$dlself" \
- || func_warning "'-dlopen self' is ignored for libtool libraries"
-
- set dummy $rpath
- shift
- test 1 -lt "$#" \
- && func_warning "ignoring multiple '-rpath's for a libtool library"
-
- install_libdir=$1
-
- oldlibs=
- if test -z "$rpath"; then
- if test yes = "$build_libtool_libs"; then
- # Building a libtool convenience library.
- # Some compilers have problems with a '.al' extension so
- # convenience libraries should have the same extension an
- # archive normally would.
- oldlibs="$output_objdir/$libname.$libext $oldlibs"
- build_libtool_libs=convenience
- build_old_libs=yes
- fi
-
- test -n "$vinfo" && \
- func_warning "'-version-info/-version-number' is ignored for convenience libraries"
-
- test -n "$release" && \
- func_warning "'-release' is ignored for convenience libraries"
- else
-
- # Parse the version information argument.
- save_ifs=$IFS; IFS=:
- set dummy $vinfo 0 0 0
- shift
- IFS=$save_ifs
-
- test -n "$7" && \
- func_fatal_help "too many parameters to '-version-info'"
-
- # convert absolute version numbers to libtool ages
- # this retains compatibility with .la files and attempts
- # to make the code below a bit more comprehensible
-
- case $vinfo_number in
- yes)
- number_major=$1
- number_minor=$2
- number_revision=$3
- #
- # There are really only two kinds -- those that
- # use the current revision as the major version
- # and those that subtract age and use age as
- # a minor version. But, then there is irix
- # that has an extra 1 added just for fun
- #
- case $version_type in
- # correct linux to gnu/linux during the next big refactor
- darwin|freebsd-elf|linux|osf|windows|none)
- func_arith $number_major + $number_minor
- current=$func_arith_result
- age=$number_minor
- revision=$number_revision
- ;;
- freebsd-aout|qnx|sunos)
- current=$number_major
- revision=$number_minor
- age=0
- ;;
- irix|nonstopux)
- func_arith $number_major + $number_minor
- current=$func_arith_result
- age=$number_minor
- revision=$number_minor
- lt_irix_increment=no
- ;;
- esac
- ;;
- no)
- current=$1
- revision=$2
- age=$3
- ;;
- esac
-
- # Check that each of the things are valid numbers.
- case $current in
- 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
- *)
- func_error "CURRENT '$current' must be a nonnegative integer"
- func_fatal_error "'$vinfo' is not valid version information"
- ;;
- esac
-
- case $revision in
- 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
- *)
- func_error "REVISION '$revision' must be a nonnegative integer"
- func_fatal_error "'$vinfo' is not valid version information"
- ;;
- esac
-
- case $age in
- 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
- *)
- func_error "AGE '$age' must be a nonnegative integer"
- func_fatal_error "'$vinfo' is not valid version information"
- ;;
- esac
-
- if test "$age" -gt "$current"; then
- func_error "AGE '$age' is greater than the current interface number '$current'"
- func_fatal_error "'$vinfo' is not valid version information"
- fi
-
- # Calculate the version variables.
- major=
- versuffix=
- verstring=
- case $version_type in
- none) ;;
-
- darwin)
- # Like Linux, but with the current version available in
- # verstring for coding it into the library header
- func_arith $current - $age
- major=.$func_arith_result
- versuffix=$major.$age.$revision
- # Darwin ld doesn't like 0 for these options...
- func_arith $current + 1
- minor_current=$func_arith_result
- xlcverstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision"
- verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
- # On Darwin other compilers
- case $CC in
- nagfor*)
- verstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision"
- ;;
- *)
- verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
- ;;
- esac
- ;;
-
- freebsd-aout)
- major=.$current
- versuffix=.$current.$revision
- ;;
-
- freebsd-elf)
- func_arith $current - $age
- major=.$func_arith_result
- versuffix=$major.$age.$revision
- ;;
-
- irix | nonstopux)
- if test no = "$lt_irix_increment"; then
- func_arith $current - $age
- else
- func_arith $current - $age + 1
- fi
- major=$func_arith_result
-
- case $version_type in
- nonstopux) verstring_prefix=nonstopux ;;
- *) verstring_prefix=sgi ;;
- esac
- verstring=$verstring_prefix$major.$revision
-
- # Add in all the interfaces that we are compatible with.
- loop=$revision
- while test 0 -ne "$loop"; do
- func_arith $revision - $loop
- iface=$func_arith_result
- func_arith $loop - 1
- loop=$func_arith_result
- verstring=$verstring_prefix$major.$iface:$verstring
- done
-
- # Before this point, $major must not contain '.'.
- major=.$major
- versuffix=$major.$revision
- ;;
-
- linux) # correct to gnu/linux during the next big refactor
- func_arith $current - $age
- major=.$func_arith_result
- versuffix=$major.$age.$revision
- ;;
-
- osf)
- func_arith $current - $age
- major=.$func_arith_result
- versuffix=.$current.$age.$revision
- verstring=$current.$age.$revision
-
- # Add in all the interfaces that we are compatible with.
- loop=$age
- while test 0 -ne "$loop"; do
- func_arith $current - $loop
- iface=$func_arith_result
- func_arith $loop - 1
- loop=$func_arith_result
- verstring=$verstring:$iface.0
- done
-
- # Make executables depend on our current version.
- func_append verstring ":$current.0"
- ;;
-
- qnx)
- major=.$current
- versuffix=.$current
- ;;
-
- sco)
- major=.$current
- versuffix=.$current
- ;;
-
- sunos)
- major=.$current
- versuffix=.$current.$revision
- ;;
-
- windows)
- # Use '-' rather than '.', since we only want one
- # extension on DOS 8.3 file systems.
- func_arith $current - $age
- major=$func_arith_result
- versuffix=-$major
- ;;
-
- *)
- func_fatal_configuration "unknown library version type '$version_type'"
- ;;
- esac
-
- # Clear the version info if we defaulted, and they specified a release.
- if test -z "$vinfo" && test -n "$release"; then
- major=
- case $version_type in
- darwin)
- # we can't check for "0.0" in archive_cmds due to quoting
- # problems, so we reset it completely
- verstring=
- ;;
- *)
- verstring=0.0
- ;;
- esac
- if test no = "$need_version"; then
- versuffix=
- else
- versuffix=.0.0
- fi
- fi
-
- # Remove version info from name if versioning should be avoided
- if test yes,no = "$avoid_version,$need_version"; then
- major=
- versuffix=
- verstring=
- fi
-
- # Check to see if the archive will have undefined symbols.
- if test yes = "$allow_undefined"; then
- if test unsupported = "$allow_undefined_flag"; then
- if test yes = "$build_old_libs"; then
- func_warning "undefined symbols not allowed in $host shared libraries; building static only"
- build_libtool_libs=no
- else
- func_fatal_error "can't build $host shared library unless -no-undefined is specified"
- fi
- fi
- else
- # Don't allow undefined symbols.
- allow_undefined_flag=$no_undefined_flag
- fi
-
- fi
-
- func_generate_dlsyms "$libname" "$libname" :
- func_append libobjs " $symfileobj"
- test " " = "$libobjs" && libobjs=
-
- if test relink != "$opt_mode"; then
- # Remove our outputs, but don't remove object files since they
- # may have been created when compiling PIC objects.
- removelist=
- tempremovelist=`$ECHO "$output_objdir/*"`
- for p in $tempremovelist; do
- case $p in
- *.$objext | *.gcno)
- ;;
- $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/$libname$release.*)
- if test -n "$precious_files_regex"; then
- if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1
- then
- continue
- fi
- fi
- func_append removelist " $p"
- ;;
- *) ;;
- esac
- done
- test -n "$removelist" && \
- func_show_eval "${RM}r \$removelist"
- fi
-
- # Now set the variables for building old libraries.
- if test yes = "$build_old_libs" && test convenience != "$build_libtool_libs"; then
- func_append oldlibs " $output_objdir/$libname.$libext"
-
- # Transform .lo files to .o files.
- oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; $lo2o" | $NL2SP`
- fi
-
- # Eliminate all temporary directories.
- #for path in $notinst_path; do
- # lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"`
- # deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"`
- # dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"`
- #done
-
- if test -n "$xrpath"; then
- # If the user specified any rpath flags, then add them.
- temp_xrpath=
- for libdir in $xrpath; do
- func_replace_sysroot "$libdir"
- func_append temp_xrpath " -R$func_replace_sysroot_result"
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) func_append finalize_rpath " $libdir" ;;
- esac
- done
- if test yes != "$hardcode_into_libs" || test yes = "$build_old_libs"; then
- dependency_libs="$temp_xrpath $dependency_libs"
- fi
- fi
-
- # Make sure dlfiles contains only unique files that won't be dlpreopened
- old_dlfiles=$dlfiles
- dlfiles=
- for lib in $old_dlfiles; do
- case " $dlprefiles $dlfiles " in
- *" $lib "*) ;;
- *) func_append dlfiles " $lib" ;;
- esac
- done
-
- # Make sure dlprefiles contains only unique files
- old_dlprefiles=$dlprefiles
- dlprefiles=
- for lib in $old_dlprefiles; do
- case "$dlprefiles " in
- *" $lib "*) ;;
- *) func_append dlprefiles " $lib" ;;
- esac
- done
-
- if test yes = "$build_libtool_libs"; then
- if test -n "$rpath"; then
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*)
- # these systems don't actually have a c library (as such)!
- ;;
- *-*-rhapsody* | *-*-darwin1.[012])
- # Rhapsody C library is in the System framework
- func_append deplibs " System.ltframework"
- ;;
- *-*-netbsd*)
- # Don't link with libc until the a.out ld.so is fixed.
- ;;
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
- # Do not include libc due to us having libc/libc_r.
- ;;
- *-*-sco3.2v5* | *-*-sco5v6*)
- # Causes problems with __ctype
- ;;
- *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
- # Compiler inserts libc in the correct place for threads to work
- ;;
- *)
- # Add libc to deplibs on all other systems if necessary.
- if test yes = "$build_libtool_need_lc"; then
- func_append deplibs " -lc"
- fi
- ;;
- esac
- fi
-
- # Transform deplibs into only deplibs that can be linked in shared.
- name_save=$name
- libname_save=$libname
- release_save=$release
- versuffix_save=$versuffix
- major_save=$major
- # I'm not sure if I'm treating the release correctly. I think
- # release should show up in the -l (ie -lgmp5) so we don't want to
- # add it in twice. Is that correct?
- release=
- versuffix=
- major=
- newdeplibs=
- droppeddeps=no
- case $deplibs_check_method in
- pass_all)
- # Don't check for shared/static. Everything works.
- # This might be a little naive. We might want to check
- # whether the library exists or not. But this is on
- # osf3 & osf4 and I'm not really sure... Just
- # implementing what was already the behavior.
- newdeplibs=$deplibs
- ;;
- test_compile)
- # This code stresses the "libraries are programs" paradigm to its
- # limits. Maybe even breaks it. We compile a program, linking it
- # against the deplibs as a proxy for the library. Then we can check
- # whether they linked in statically or dynamically with ldd.
- $opt_dry_run || $RM conftest.c
- cat > conftest.c <<EOF
- int main() { return 0; }
-EOF
- $opt_dry_run || $RM conftest
- if $LTCC $LTCFLAGS -o conftest conftest.c $deplibs; then
- ldd_output=`ldd conftest`
- for i in $deplibs; do
- case $i in
- -l*)
- func_stripname -l '' "$i"
- name=$func_stripname_result
- if test yes = "$allow_libtool_libs_with_static_runtimes"; then
- case " $predeps $postdeps " in
- *" $i "*)
- func_append newdeplibs " $i"
- i=
- ;;
- esac
- fi
- if test -n "$i"; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
- set dummy $deplib_matches; shift
- deplib_match=$1
- if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0; then
- func_append newdeplibs " $i"
- else
- droppeddeps=yes
- echo
- $ECHO "*** Warning: dynamic linker does not accept needed library $i."
- echo "*** I have the capability to make that library automatically link in when"
- echo "*** you link to this library. But I can only do this if you have a"
- echo "*** shared version of the library, which I believe you do not have"
- echo "*** because a test_compile did reveal that the linker did not use it for"
- echo "*** its dynamic dependency list that programs get resolved with at runtime."
- fi
- fi
- ;;
- *)
- func_append newdeplibs " $i"
- ;;
- esac
- done
- else
- # Error occurred in the first compile. Let's try to salvage
- # the situation: Compile a separate program for each library.
- for i in $deplibs; do
- case $i in
- -l*)
- func_stripname -l '' "$i"
- name=$func_stripname_result
- $opt_dry_run || $RM conftest
- if $LTCC $LTCFLAGS -o conftest conftest.c $i; then
- ldd_output=`ldd conftest`
- if test yes = "$allow_libtool_libs_with_static_runtimes"; then
- case " $predeps $postdeps " in
- *" $i "*)
- func_append newdeplibs " $i"
- i=
- ;;
- esac
- fi
- if test -n "$i"; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
- set dummy $deplib_matches; shift
- deplib_match=$1
- if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0; then
- func_append newdeplibs " $i"
- else
- droppeddeps=yes
- echo
- $ECHO "*** Warning: dynamic linker does not accept needed library $i."
- echo "*** I have the capability to make that library automatically link in when"
- echo "*** you link to this library. But I can only do this if you have a"
- echo "*** shared version of the library, which you do not appear to have"
- echo "*** because a test_compile did reveal that the linker did not use this one"
- echo "*** as a dynamic dependency that programs can get resolved with at runtime."
- fi
- fi
- else
- droppeddeps=yes
- echo
- $ECHO "*** Warning! Library $i is needed by this library but I was not able to"
- echo "*** make it link in! You will probably need to install it or some"
- echo "*** library that it depends on before this library will be fully"
- echo "*** functional. Installing it before continuing would be even better."
- fi
- ;;
- *)
- func_append newdeplibs " $i"
- ;;
- esac
- done
- fi
- ;;
- file_magic*)
- set dummy $deplibs_check_method; shift
- file_magic_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
- for a_deplib in $deplibs; do
- case $a_deplib in
- -l*)
- func_stripname -l '' "$a_deplib"
- name=$func_stripname_result
- if test yes = "$allow_libtool_libs_with_static_runtimes"; then
- case " $predeps $postdeps " in
- *" $a_deplib "*)
- func_append newdeplibs " $a_deplib"
- a_deplib=
- ;;
- esac
- fi
- if test -n "$a_deplib"; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- if test -n "$file_magic_glob"; then
- libnameglob=`func_echo_all "$libname" | $SED -e $file_magic_glob`
- else
- libnameglob=$libname
- fi
- test yes = "$want_nocaseglob" && nocaseglob=`shopt -p nocaseglob`
- for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
- if test yes = "$want_nocaseglob"; then
- shopt -s nocaseglob
- potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
- $nocaseglob
- else
- potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
- fi
- for potent_lib in $potential_libs; do
- # Follow soft links.
- if ls -lLd "$potent_lib" 2>/dev/null |
- $GREP " -> " >/dev/null; then
- continue
- fi
- # The statement above tries to avoid entering an
- # endless loop below, in case of cyclic links.
- # We might still enter an endless loop, since a link
- # loop can be closed while we follow links,
- # but so what?
- potlib=$potent_lib
- while test -h "$potlib" 2>/dev/null; do
- potliblink=`ls -ld $potlib | $SED 's/.* -> //'`
- case $potliblink in
- [\\/]* | [A-Za-z]:[\\/]*) potlib=$potliblink;;
- *) potlib=`$ECHO "$potlib" | $SED 's|[^/]*$||'`"$potliblink";;
- esac
- done
- if eval $file_magic_cmd \"\$potlib\" 2>/dev/null |
- $SED -e 10q |
- $EGREP "$file_magic_regex" > /dev/null; then
- func_append newdeplibs " $a_deplib"
- a_deplib=
- break 2
- fi
- done
- done
- fi
- if test -n "$a_deplib"; then
- droppeddeps=yes
- echo
- $ECHO "*** Warning: linker path does not have real file for library $a_deplib."
- echo "*** I have the capability to make that library automatically link in when"
- echo "*** you link to this library. But I can only do this if you have a"
- echo "*** shared version of the library, which you do not appear to have"
- echo "*** because I did check the linker path looking for a file starting"
- if test -z "$potlib"; then
- $ECHO "*** with $libname but no candidates were found. (...for file magic test)"
- else
- $ECHO "*** with $libname and none of the candidates passed a file format test"
- $ECHO "*** using a file magic. Last file checked: $potlib"
- fi
- fi
- ;;
- *)
- # Add a -L argument.
- func_append newdeplibs " $a_deplib"
- ;;
- esac
- done # Gone through all deplibs.
- ;;
- match_pattern*)
- set dummy $deplibs_check_method; shift
- match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
- for a_deplib in $deplibs; do
- case $a_deplib in
- -l*)
- func_stripname -l '' "$a_deplib"
- name=$func_stripname_result
- if test yes = "$allow_libtool_libs_with_static_runtimes"; then
- case " $predeps $postdeps " in
- *" $a_deplib "*)
- func_append newdeplibs " $a_deplib"
- a_deplib=
- ;;
- esac
- fi
- if test -n "$a_deplib"; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
- potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
- for potent_lib in $potential_libs; do
- potlib=$potent_lib # see symlink-check above in file_magic test
- if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \
- $EGREP "$match_pattern_regex" > /dev/null; then
- func_append newdeplibs " $a_deplib"
- a_deplib=
- break 2
- fi
- done
- done
- fi
- if test -n "$a_deplib"; then
- droppeddeps=yes
- echo
- $ECHO "*** Warning: linker path does not have real file for library $a_deplib."
- echo "*** I have the capability to make that library automatically link in when"
- echo "*** you link to this library. But I can only do this if you have a"
- echo "*** shared version of the library, which you do not appear to have"
- echo "*** because I did check the linker path looking for a file starting"
- if test -z "$potlib"; then
- $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)"
- else
- $ECHO "*** with $libname and none of the candidates passed a file format test"
- $ECHO "*** using a regex pattern. Last file checked: $potlib"
- fi
- fi
- ;;
- *)
- # Add a -L argument.
- func_append newdeplibs " $a_deplib"
- ;;
- esac
- done # Gone through all deplibs.
- ;;
- none | unknown | *)
- newdeplibs=
- tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'`
- if test yes = "$allow_libtool_libs_with_static_runtimes"; then
- for i in $predeps $postdeps; do
- # can't use Xsed below, because $i might contain '/'
- tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s|$i||"`
- done
- fi
- case $tmp_deplibs in
- *[!\ \ ]*)
- echo
- if test none = "$deplibs_check_method"; then
- echo "*** Warning: inter-library dependencies are not supported in this platform."
- else
- echo "*** Warning: inter-library dependencies are not known to be supported."
- fi
- echo "*** All declared inter-library dependencies are being dropped."
- droppeddeps=yes
- ;;
- esac
- ;;
- esac
- versuffix=$versuffix_save
- major=$major_save
- release=$release_save
- libname=$libname_save
- name=$name_save
-
- case $host in
- *-*-rhapsody* | *-*-darwin1.[012])
- # On Rhapsody replace the C library with the System framework
- newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'`
- ;;
- esac
-
- if test yes = "$droppeddeps"; then
- if test yes = "$module"; then
- echo
- echo "*** Warning: libtool could not satisfy all declared inter-library"
- $ECHO "*** dependencies of module $libname. Therefore, libtool will create"
- echo "*** a static module, that should work as long as the dlopening"
- echo "*** application is linked with the -dlopen flag."
- if test -z "$global_symbol_pipe"; then
- echo
- echo "*** However, this would only work if libtool was able to extract symbol"
- echo "*** lists from a program, using 'nm' or equivalent, but libtool could"
- echo "*** not find such a program. So, this module is probably useless."
- echo "*** 'nm' from GNU binutils and a full rebuild may help."
- fi
- if test no = "$build_old_libs"; then
- oldlibs=$output_objdir/$libname.$libext
- build_libtool_libs=module
- build_old_libs=yes
- else
- build_libtool_libs=no
- fi
- else
- echo "*** The inter-library dependencies that have been dropped here will be"
- echo "*** automatically added whenever a program is linked with this library"
- echo "*** or is declared to -dlopen it."
-
- if test no = "$allow_undefined"; then
- echo
- echo "*** Since this library must not contain undefined symbols,"
- echo "*** because either the platform does not support them or"
- echo "*** it was explicitly requested with -no-undefined,"
- echo "*** libtool will only create a static version of it."
- if test no = "$build_old_libs"; then
- oldlibs=$output_objdir/$libname.$libext
- build_libtool_libs=module
- build_old_libs=yes
- else
- build_libtool_libs=no
- fi
- fi
- fi
- fi
- # Done checking deplibs!
- deplibs=$newdeplibs
- fi
- # Time to change all our "foo.ltframework" stuff back to "-framework foo"
- case $host in
- *-*-darwin*)
- newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
- new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
- deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
- ;;
- esac
-
- # move library search paths that coincide with paths to not yet
- # installed libraries to the beginning of the library search list
- new_libs=
- for path in $notinst_path; do
- case " $new_libs " in
- *" -L$path/$objdir "*) ;;
- *)
- case " $deplibs " in
- *" -L$path/$objdir "*)
- func_append new_libs " -L$path/$objdir" ;;
- esac
- ;;
- esac
- done
- for deplib in $deplibs; do
- case $deplib in
- -L*)
- case " $new_libs " in
- *" $deplib "*) ;;
- *) func_append new_libs " $deplib" ;;
- esac
- ;;
- *) func_append new_libs " $deplib" ;;
- esac
- done
- deplibs=$new_libs
-
- # All the library-specific variables (install_libdir is set above).
- library_names=
- old_library=
- dlname=
-
- # Test again, we may have decided not to build it any more
- if test yes = "$build_libtool_libs"; then
- # Remove $wl instances when linking with ld.
- # FIXME: should test the right _cmds variable.
- case $archive_cmds in
- *\$LD\ *) wl= ;;
- esac
- if test yes = "$hardcode_into_libs"; then
- # Hardcode the library paths
- hardcode_libdirs=
- dep_rpath=
- rpath=$finalize_rpath
- test relink = "$opt_mode" || rpath=$compile_rpath$rpath
- for libdir in $rpath; do
- if test -n "$hardcode_libdir_flag_spec"; then
- if test -n "$hardcode_libdir_separator"; then
- func_replace_sysroot "$libdir"
- libdir=$func_replace_sysroot_result
- if test -z "$hardcode_libdirs"; then
- hardcode_libdirs=$libdir
- else
- # Just accumulate the unique libdirs.
- case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
- *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
- ;;
- *)
- func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
- ;;
- esac
- fi
- else
- eval flag=\"$hardcode_libdir_flag_spec\"
- func_append dep_rpath " $flag"
- fi
- elif test -n "$runpath_var"; then
- case "$perm_rpath " in
- *" $libdir "*) ;;
- *) func_append perm_rpath " $libdir" ;;
- esac
- fi
- done
- # Substitute the hardcoded libdirs into the rpath.
- if test -n "$hardcode_libdir_separator" &&
- test -n "$hardcode_libdirs"; then
- libdir=$hardcode_libdirs
- eval "dep_rpath=\"$hardcode_libdir_flag_spec\""
- fi
- if test -n "$runpath_var" && test -n "$perm_rpath"; then
- # We should set the runpath_var.
- rpath=
- for dir in $perm_rpath; do
- func_append rpath "$dir:"
- done
- eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var"
- fi
- test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
- fi
-
- shlibpath=$finalize_shlibpath
- test relink = "$opt_mode" || shlibpath=$compile_shlibpath$shlibpath
- if test -n "$shlibpath"; then
- eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
- fi
-
- # Get the real and link names of the library.
- eval shared_ext=\"$shrext_cmds\"
- eval library_names=\"$library_names_spec\"
- set dummy $library_names
- shift
- realname=$1
- shift
-
- if test -n "$soname_spec"; then
- eval soname=\"$soname_spec\"
- else
- soname=$realname
- fi
- if test -z "$dlname"; then
- dlname=$soname
- fi
-
- lib=$output_objdir/$realname
- linknames=
- for link
- do
- func_append linknames " $link"
- done
-
- # Use standard objects if they are pic
- test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP`
- test "X$libobjs" = "X " && libobjs=
-
- delfiles=
- if test -n "$export_symbols" && test -n "$include_expsyms"; then
- $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp"
- export_symbols=$output_objdir/$libname.uexp
- func_append delfiles " $export_symbols"
- fi
-
- orig_export_symbols=
- case $host_os in
- cygwin* | mingw* | cegcc*)
- if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
- # exporting using user supplied symfile
- func_dll_def_p "$export_symbols" || {
- # and it's NOT already a .def file. Must figure out
- # which of the given symbols are data symbols and tag
- # them as such. So, trigger use of export_symbols_cmds.
- # export_symbols gets reassigned inside the "prepare
- # the list of exported symbols" if statement, so the
- # include_expsyms logic still works.
- orig_export_symbols=$export_symbols
- export_symbols=
- always_export_symbols=yes
- }
- fi
- ;;
- esac
-
- # Prepare the list of exported symbols
- if test -z "$export_symbols"; then
- if test yes = "$always_export_symbols" || test -n "$export_symbols_regex"; then
- func_verbose "generating symbol list for '$libname.la'"
- export_symbols=$output_objdir/$libname.exp
- $opt_dry_run || $RM $export_symbols
- cmds=$export_symbols_cmds
- save_ifs=$IFS; IFS='~'
- for cmd1 in $cmds; do
- IFS=$save_ifs
- # Take the normal branch if the nm_file_list_spec branch
- # doesn't work or if tool conversion is not needed.
- case $nm_file_list_spec~$to_tool_file_cmd in
- *~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*)
- try_normal_branch=yes
- eval cmd=\"$cmd1\"
- func_len " $cmd"
- len=$func_len_result
- ;;
- *)
- try_normal_branch=no
- ;;
- esac
- if test yes = "$try_normal_branch" \
- && { test "$len" -lt "$max_cmd_len" \
- || test "$max_cmd_len" -le -1; }
- then
- func_show_eval "$cmd" 'exit $?'
- skipped_export=false
- elif test -n "$nm_file_list_spec"; then
- func_basename "$output"
- output_la=$func_basename_result
- save_libobjs=$libobjs
- save_output=$output
- output=$output_objdir/$output_la.nm
- func_to_tool_file "$output"
- libobjs=$nm_file_list_spec$func_to_tool_file_result
- func_append delfiles " $output"
- func_verbose "creating $NM input file list: $output"
- for obj in $save_libobjs; do
- func_to_tool_file "$obj"
- $ECHO "$func_to_tool_file_result"
- done > "$output"
- eval cmd=\"$cmd1\"
- func_show_eval "$cmd" 'exit $?'
- output=$save_output
- libobjs=$save_libobjs
- skipped_export=false
- else
- # The command line is too long to execute in one step.
- func_verbose "using reloadable object file for export list..."
- skipped_export=:
- # Break out early, otherwise skipped_export may be
- # set to false by a later but shorter cmd.
- break
- fi
- done
- IFS=$save_ifs
- if test -n "$export_symbols_regex" && test : != "$skipped_export"; then
- func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
- func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
- fi
- fi
- fi
-
- if test -n "$export_symbols" && test -n "$include_expsyms"; then
- tmp_export_symbols=$export_symbols
- test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols
- $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
- fi
-
- if test : != "$skipped_export" && test -n "$orig_export_symbols"; then
- # The given exports_symbols file has to be filtered, so filter it.
- func_verbose "filter symbol list for '$libname.la' to tag DATA exports"
- # FIXME: $output_objdir/$libname.filter potentially contains lots of
- # 's' commands, which not all seds can handle. GNU sed should be fine
- # though. Also, the filter scales superlinearly with the number of
- # global variables. join(1) would be nice here, but unfortunately
- # isn't a blessed tool.
- $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
- func_append delfiles " $export_symbols $output_objdir/$libname.filter"
- export_symbols=$output_objdir/$libname.def
- $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
- fi
-
- tmp_deplibs=
- for test_deplib in $deplibs; do
- case " $convenience " in
- *" $test_deplib "*) ;;
- *)
- func_append tmp_deplibs " $test_deplib"
- ;;
- esac
- done
- deplibs=$tmp_deplibs
-
- if test -n "$convenience"; then
- if test -n "$whole_archive_flag_spec" &&
- test yes = "$compiler_needs_object" &&
- test -z "$libobjs"; then
- # extract the archives, so we have objects to list.
- # TODO: could optimize this to just extract one archive.
- whole_archive_flag_spec=
- fi
- if test -n "$whole_archive_flag_spec"; then
- save_libobjs=$libobjs
- eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
- test "X$libobjs" = "X " && libobjs=
- else
- gentop=$output_objdir/${outputname}x
- func_append generated " $gentop"
-
- func_extract_archives $gentop $convenience
- func_append libobjs " $func_extract_archives_result"
- test "X$libobjs" = "X " && libobjs=
- fi
- fi
-
- if test yes = "$thread_safe" && test -n "$thread_safe_flag_spec"; then
- eval flag=\"$thread_safe_flag_spec\"
- func_append linker_flags " $flag"
- fi
-
- # Make a backup of the uninstalled library when relinking
- if test relink = "$opt_mode"; then
- $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $?
- fi
-
- # Do each of the archive commands.
- if test yes = "$module" && test -n "$module_cmds"; then
- if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
- eval test_cmds=\"$module_expsym_cmds\"
- cmds=$module_expsym_cmds
- else
- eval test_cmds=\"$module_cmds\"
- cmds=$module_cmds
- fi
- else
- if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
- eval test_cmds=\"$archive_expsym_cmds\"
- cmds=$archive_expsym_cmds
- else
- eval test_cmds=\"$archive_cmds\"
- cmds=$archive_cmds
- fi
- fi
-
- if test : != "$skipped_export" &&
- func_len " $test_cmds" &&
- len=$func_len_result &&
- test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
- :
- else
- # The command line is too long to link in one step, link piecewise
- # or, if using GNU ld and skipped_export is not :, use a linker
- # script.
-
- # Save the value of $output and $libobjs because we want to
- # use them later. If we have whole_archive_flag_spec, we
- # want to use save_libobjs as it was before
- # whole_archive_flag_spec was expanded, because we can't
- # assume the linker understands whole_archive_flag_spec.
- # This may have to be revisited, in case too many
- # convenience libraries get linked in and end up exceeding
- # the spec.
- if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then
- save_libobjs=$libobjs
- fi
- save_output=$output
- func_basename "$output"
- output_la=$func_basename_result
-
- # Clear the reloadable object creation command queue and
- # initialize k to one.
- test_cmds=
- concat_cmds=
- objlist=
- last_robj=
- k=1
-
- if test -n "$save_libobjs" && test : != "$skipped_export" && test yes = "$with_gnu_ld"; then
- output=$output_objdir/$output_la.lnkscript
- func_verbose "creating GNU ld script: $output"
- echo 'INPUT (' > $output
- for obj in $save_libobjs
- do
- func_to_tool_file "$obj"
- $ECHO "$func_to_tool_file_result" >> $output
- done
- echo ')' >> $output
- func_append delfiles " $output"
- func_to_tool_file "$output"
- output=$func_to_tool_file_result
- elif test -n "$save_libobjs" && test : != "$skipped_export" && test -n "$file_list_spec"; then
- output=$output_objdir/$output_la.lnk
- func_verbose "creating linker input file list: $output"
- : > $output
- set x $save_libobjs
- shift
- firstobj=
- if test yes = "$compiler_needs_object"; then
- firstobj="$1 "
- shift
- fi
- for obj
- do
- func_to_tool_file "$obj"
- $ECHO "$func_to_tool_file_result" >> $output
- done
- func_append delfiles " $output"
- func_to_tool_file "$output"
- output=$firstobj\"$file_list_spec$func_to_tool_file_result\"
- else
- if test -n "$save_libobjs"; then
- func_verbose "creating reloadable object files..."
- output=$output_objdir/$output_la-$k.$objext
- eval test_cmds=\"$reload_cmds\"
- func_len " $test_cmds"
- len0=$func_len_result
- len=$len0
-
- # Loop over the list of objects to be linked.
- for obj in $save_libobjs
- do
- func_len " $obj"
- func_arith $len + $func_len_result
- len=$func_arith_result
- if test -z "$objlist" ||
- test "$len" -lt "$max_cmd_len"; then
- func_append objlist " $obj"
- else
- # The command $test_cmds is almost too long, add a
- # command to the queue.
- if test 1 -eq "$k"; then
- # The first file doesn't have a previous command to add.
- reload_objs=$objlist
- eval concat_cmds=\"$reload_cmds\"
- else
- # All subsequent reloadable object files will link in
- # the last one created.
- reload_objs="$objlist $last_robj"
- eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\"
- fi
- last_robj=$output_objdir/$output_la-$k.$objext
- func_arith $k + 1
- k=$func_arith_result
- output=$output_objdir/$output_la-$k.$objext
- objlist=" $obj"
- func_len " $last_robj"
- func_arith $len0 + $func_len_result
- len=$func_arith_result
- fi
- done
- # Handle the remaining objects by creating one last
- # reloadable object file. All subsequent reloadable object
- # files will link in the last one created.
- test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- reload_objs="$objlist $last_robj"
- eval concat_cmds=\"\$concat_cmds$reload_cmds\"
- if test -n "$last_robj"; then
- eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
- fi
- func_append delfiles " $output"
-
- else
- output=
- fi
-
- ${skipped_export-false} && {
- func_verbose "generating symbol list for '$libname.la'"
- export_symbols=$output_objdir/$libname.exp
- $opt_dry_run || $RM $export_symbols
- libobjs=$output
- # Append the command to create the export file.
- test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\"
- if test -n "$last_robj"; then
- eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
- fi
- }
-
- test -n "$save_libobjs" &&
- func_verbose "creating a temporary reloadable object file: $output"
-
- # Loop through the commands generated above and execute them.
- save_ifs=$IFS; IFS='~'
- for cmd in $concat_cmds; do
- IFS=$save_ifs
- $opt_quiet || {
- func_quote_for_expand "$cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
- $opt_dry_run || eval "$cmd" || {
- lt_exit=$?
-
- # Restore the uninstalled library and exit
- if test relink = "$opt_mode"; then
- ( cd "$output_objdir" && \
- $RM "${realname}T" && \
- $MV "${realname}U" "$realname" )
- fi
-
- exit $lt_exit
- }
- done
- IFS=$save_ifs
-
- if test -n "$export_symbols_regex" && ${skipped_export-false}; then
- func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
- func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
- fi
- fi
-
- ${skipped_export-false} && {
- if test -n "$export_symbols" && test -n "$include_expsyms"; then
- tmp_export_symbols=$export_symbols
- test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols
- $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
- fi
-
- if test -n "$orig_export_symbols"; then
- # The given exports_symbols file has to be filtered, so filter it.
- func_verbose "filter symbol list for '$libname.la' to tag DATA exports"
- # FIXME: $output_objdir/$libname.filter potentially contains lots of
- # 's' commands, which not all seds can handle. GNU sed should be fine
- # though. Also, the filter scales superlinearly with the number of
- # global variables. join(1) would be nice here, but unfortunately
- # isn't a blessed tool.
- $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
- func_append delfiles " $export_symbols $output_objdir/$libname.filter"
- export_symbols=$output_objdir/$libname.def
- $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
- fi
- }
-
- libobjs=$output
- # Restore the value of output.
- output=$save_output
-
- if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then
- eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
- test "X$libobjs" = "X " && libobjs=
- fi
- # Expand the library linking commands again to reset the
- # value of $libobjs for piecewise linking.
-
- # Do each of the archive commands.
- if test yes = "$module" && test -n "$module_cmds"; then
- if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
- cmds=$module_expsym_cmds
- else
- cmds=$module_cmds
- fi
- else
- if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
- cmds=$archive_expsym_cmds
- else
- cmds=$archive_cmds
- fi
- fi
- fi
-
- if test -n "$delfiles"; then
- # Append the command to remove temporary files to $cmds.
- eval cmds=\"\$cmds~\$RM $delfiles\"
- fi
-
- # Add any objects from preloaded convenience libraries
- if test -n "$dlprefiles"; then
- gentop=$output_objdir/${outputname}x
- func_append generated " $gentop"
-
- func_extract_archives $gentop $dlprefiles
- func_append libobjs " $func_extract_archives_result"
- test "X$libobjs" = "X " && libobjs=
- fi
-
- save_ifs=$IFS; IFS='~'
- for cmd in $cmds; do
- IFS=$sp$nl
- eval cmd=\"$cmd\"
- IFS=$save_ifs
- $opt_quiet || {
- func_quote_for_expand "$cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
- $opt_dry_run || eval "$cmd" || {
- lt_exit=$?
-
- # Restore the uninstalled library and exit
- if test relink = "$opt_mode"; then
- ( cd "$output_objdir" && \
- $RM "${realname}T" && \
- $MV "${realname}U" "$realname" )
- fi
-
- exit $lt_exit
- }
- done
- IFS=$save_ifs
-
- # Restore the uninstalled library and exit
- if test relink = "$opt_mode"; then
- $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $?
-
- if test -n "$convenience"; then
- if test -z "$whole_archive_flag_spec"; then
- func_show_eval '${RM}r "$gentop"'
- fi
- fi
-
- exit $EXIT_SUCCESS
- fi
-
- # Create links to the real library.
- for linkname in $linknames; do
- if test "$realname" != "$linkname"; then
- func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?'
- fi
- done
-
- # If -module or -export-dynamic was specified, set the dlname.
- if test yes = "$module" || test yes = "$export_dynamic"; then
- # On all known operating systems, these are identical.
- dlname=$soname
- fi
- fi
- ;;
-
- obj)
- if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
- func_warning "'-dlopen' is ignored for objects"
- fi
-
- case " $deplibs" in
- *\ -l* | *\ -L*)
- func_warning "'-l' and '-L' are ignored for objects" ;;
- esac
-
- test -n "$rpath" && \
- func_warning "'-rpath' is ignored for objects"
-
- test -n "$xrpath" && \
- func_warning "'-R' is ignored for objects"
-
- test -n "$vinfo" && \
- func_warning "'-version-info' is ignored for objects"
-
- test -n "$release" && \
- func_warning "'-release' is ignored for objects"
-
- case $output in
- *.lo)
- test -n "$objs$old_deplibs" && \
- func_fatal_error "cannot build library object '$output' from non-libtool objects"
-
- libobj=$output
- func_lo2o "$libobj"
- obj=$func_lo2o_result
- ;;
- *)
- libobj=
- obj=$output
- ;;
- esac
-
- # Delete the old objects.
- $opt_dry_run || $RM $obj $libobj
-
- # Objects from convenience libraries. This assumes
- # single-version convenience libraries. Whenever we create
- # different ones for PIC/non-PIC, this we'll have to duplicate
- # the extraction.
- reload_conv_objs=
- gentop=
- # if reload_cmds runs $LD directly, get rid of -Wl from
- # whole_archive_flag_spec and hope we can get by with turning comma
- # into space.
- case $reload_cmds in
- *\$LD[\ \$]*) wl= ;;
- esac
- if test -n "$convenience"; then
- if test -n "$whole_archive_flag_spec"; then
- eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\"
- test -n "$wl" || tmp_whole_archive_flags=`$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'`
- reload_conv_objs=$reload_objs\ $tmp_whole_archive_flags
- else
- gentop=$output_objdir/${obj}x
- func_append generated " $gentop"
-
- func_extract_archives $gentop $convenience
- reload_conv_objs="$reload_objs $func_extract_archives_result"
- fi
- fi
-
- # If we're not building shared, we need to use non_pic_objs
- test yes = "$build_libtool_libs" || libobjs=$non_pic_objects
-
- # Create the old-style object.
- reload_objs=$objs$old_deplibs' '`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; /\.lib$/d; $lo2o" | $NL2SP`' '$reload_conv_objs
-
- output=$obj
- func_execute_cmds "$reload_cmds" 'exit $?'
-
- # Exit if we aren't doing a library object file.
- if test -z "$libobj"; then
- if test -n "$gentop"; then
- func_show_eval '${RM}r "$gentop"'
- fi
-
- exit $EXIT_SUCCESS
- fi
-
- test yes = "$build_libtool_libs" || {
- if test -n "$gentop"; then
- func_show_eval '${RM}r "$gentop"'
- fi
-
- # Create an invalid libtool object if no PIC, so that we don't
- # accidentally link it into a program.
- # $show "echo timestamp > $libobj"
- # $opt_dry_run || eval "echo timestamp > $libobj" || exit $?
- exit $EXIT_SUCCESS
- }
-
- if test -n "$pic_flag" || test default != "$pic_mode"; then
- # Only do commands if we really have different PIC objects.
- reload_objs="$libobjs $reload_conv_objs"
- output=$libobj
- func_execute_cmds "$reload_cmds" 'exit $?'
- fi
-
- if test -n "$gentop"; then
- func_show_eval '${RM}r "$gentop"'
- fi
-
- exit $EXIT_SUCCESS
- ;;
-
- prog)
- case $host in
- *cygwin*) func_stripname '' '.exe' "$output"
- output=$func_stripname_result.exe;;
- esac
- test -n "$vinfo" && \
- func_warning "'-version-info' is ignored for programs"
-
- test -n "$release" && \
- func_warning "'-release' is ignored for programs"
-
- $preload \
- && test unknown,unknown,unknown = "$dlopen_support,$dlopen_self,$dlopen_self_static" \
- && func_warning "'LT_INIT([dlopen])' not used. Assuming no dlopen support."
-
- case $host in
- *-*-rhapsody* | *-*-darwin1.[012])
- # On Rhapsody replace the C library is the System framework
- compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'`
- finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'`
- ;;
- esac
-
- case $host in
- *-*-darwin*)
- # Don't allow lazy linking, it breaks C++ global constructors
- # But is supposedly fixed on 10.4 or later (yay!).
- if test CXX = "$tagname"; then
- case ${MACOSX_DEPLOYMENT_TARGET-10.0} in
- 10.[0123])
- func_append compile_command " $wl-bind_at_load"
- func_append finalize_command " $wl-bind_at_load"
- ;;
- esac
- fi
- # Time to change all our "foo.ltframework" stuff back to "-framework foo"
- compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
- finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
- ;;
- esac
-
-
- # move library search paths that coincide with paths to not yet
- # installed libraries to the beginning of the library search list
- new_libs=
- for path in $notinst_path; do
- case " $new_libs " in
- *" -L$path/$objdir "*) ;;
- *)
- case " $compile_deplibs " in
- *" -L$path/$objdir "*)
- func_append new_libs " -L$path/$objdir" ;;
- esac
- ;;
- esac
- done
- for deplib in $compile_deplibs; do
- case $deplib in
- -L*)
- case " $new_libs " in
- *" $deplib "*) ;;
- *) func_append new_libs " $deplib" ;;
- esac
- ;;
- *) func_append new_libs " $deplib" ;;
- esac
- done
- compile_deplibs=$new_libs
-
-
- func_append compile_command " $compile_deplibs"
- func_append finalize_command " $finalize_deplibs"
-
- if test -n "$rpath$xrpath"; then
- # If the user specified any rpath flags, then add them.
- for libdir in $rpath $xrpath; do
- # This is the magic to use -rpath.
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) func_append finalize_rpath " $libdir" ;;
- esac
- done
- fi
-
- # Now hardcode the library paths
- rpath=
- hardcode_libdirs=
- for libdir in $compile_rpath $finalize_rpath; do
- if test -n "$hardcode_libdir_flag_spec"; then
- if test -n "$hardcode_libdir_separator"; then
- if test -z "$hardcode_libdirs"; then
- hardcode_libdirs=$libdir
- else
- # Just accumulate the unique libdirs.
- case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
- *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
- ;;
- *)
- func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
- ;;
- esac
- fi
- else
- eval flag=\"$hardcode_libdir_flag_spec\"
- func_append rpath " $flag"
- fi
- elif test -n "$runpath_var"; then
- case "$perm_rpath " in
- *" $libdir "*) ;;
- *) func_append perm_rpath " $libdir" ;;
- esac
- fi
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- testbindir=`$ECHO "$libdir" | $SED -e 's*/lib$*/bin*'`
- case :$dllsearchpath: in
- *":$libdir:"*) ;;
- ::) dllsearchpath=$libdir;;
- *) func_append dllsearchpath ":$libdir";;
- esac
- case :$dllsearchpath: in
- *":$testbindir:"*) ;;
- ::) dllsearchpath=$testbindir;;
- *) func_append dllsearchpath ":$testbindir";;
- esac
- ;;
- esac
- done
- # Substitute the hardcoded libdirs into the rpath.
- if test -n "$hardcode_libdir_separator" &&
- test -n "$hardcode_libdirs"; then
- libdir=$hardcode_libdirs
- eval rpath=\" $hardcode_libdir_flag_spec\"
- fi
- compile_rpath=$rpath
-
- rpath=
- hardcode_libdirs=
- for libdir in $finalize_rpath; do
- if test -n "$hardcode_libdir_flag_spec"; then
- if test -n "$hardcode_libdir_separator"; then
- if test -z "$hardcode_libdirs"; then
- hardcode_libdirs=$libdir
- else
- # Just accumulate the unique libdirs.
- case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
- *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
- ;;
- *)
- func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
- ;;
- esac
- fi
- else
- eval flag=\"$hardcode_libdir_flag_spec\"
- func_append rpath " $flag"
- fi
- elif test -n "$runpath_var"; then
- case "$finalize_perm_rpath " in
- *" $libdir "*) ;;
- *) func_append finalize_perm_rpath " $libdir" ;;
- esac
- fi
- done
- # Substitute the hardcoded libdirs into the rpath.
- if test -n "$hardcode_libdir_separator" &&
- test -n "$hardcode_libdirs"; then
- libdir=$hardcode_libdirs
- eval rpath=\" $hardcode_libdir_flag_spec\"
- fi
- finalize_rpath=$rpath
-
- if test -n "$libobjs" && test yes = "$build_old_libs"; then
- # Transform all the library objects into standard objects.
- compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
- finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
- fi
-
- func_generate_dlsyms "$outputname" "@PROGRAM@" false
-
- # template prelinking step
- if test -n "$prelink_cmds"; then
- func_execute_cmds "$prelink_cmds" 'exit $?'
- fi
-
- wrappers_required=:
- case $host in
- *cegcc* | *mingw32ce*)
- # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway.
- wrappers_required=false
- ;;
- *cygwin* | *mingw* )
- test yes = "$build_libtool_libs" || wrappers_required=false
- ;;
- *)
- if test no = "$need_relink" || test yes != "$build_libtool_libs"; then
- wrappers_required=false
- fi
- ;;
- esac
- $wrappers_required || {
- # Replace the output file specification.
- compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
- link_command=$compile_command$compile_rpath
-
- # We have no uninstalled library dependencies, so finalize right now.
- exit_status=0
- func_show_eval "$link_command" 'exit_status=$?'
-
- if test -n "$postlink_cmds"; then
- func_to_tool_file "$output"
- postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
- func_execute_cmds "$postlink_cmds" 'exit $?'
- fi
-
- # Delete the generated files.
- if test -f "$output_objdir/${outputname}S.$objext"; then
- func_show_eval '$RM "$output_objdir/${outputname}S.$objext"'
- fi
-
- exit $exit_status
- }
-
- if test -n "$compile_shlibpath$finalize_shlibpath"; then
- compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
- fi
- if test -n "$finalize_shlibpath"; then
- finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
- fi
-
- compile_var=
- finalize_var=
- if test -n "$runpath_var"; then
- if test -n "$perm_rpath"; then
- # We should set the runpath_var.
- rpath=
- for dir in $perm_rpath; do
- func_append rpath "$dir:"
- done
- compile_var="$runpath_var=\"$rpath\$$runpath_var\" "
- fi
- if test -n "$finalize_perm_rpath"; then
- # We should set the runpath_var.
- rpath=
- for dir in $finalize_perm_rpath; do
- func_append rpath "$dir:"
- done
- finalize_var="$runpath_var=\"$rpath\$$runpath_var\" "
- fi
- fi
-
- if test yes = "$no_install"; then
- # We don't need to create a wrapper script.
- link_command=$compile_var$compile_command$compile_rpath
- # Replace the output file specification.
- link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
- # Delete the old output file.
- $opt_dry_run || $RM $output
- # Link the executable and exit
- func_show_eval "$link_command" 'exit $?'
-
- if test -n "$postlink_cmds"; then
- func_to_tool_file "$output"
- postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
- func_execute_cmds "$postlink_cmds" 'exit $?'
- fi
-
- exit $EXIT_SUCCESS
- fi
-
- case $hardcode_action,$fast_install in
- relink,*)
- # Fast installation is not supported
- link_command=$compile_var$compile_command$compile_rpath
- relink_command=$finalize_var$finalize_command$finalize_rpath
-
- func_warning "this platform does not like uninstalled shared libraries"
- func_warning "'$output' will be relinked during installation"
- ;;
- *,yes)
- link_command=$finalize_var$compile_command$finalize_rpath
- relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'`
- ;;
- *,no)
- link_command=$compile_var$compile_command$compile_rpath
- relink_command=$finalize_var$finalize_command$finalize_rpath
- ;;
- *,needless)
- link_command=$finalize_var$compile_command$finalize_rpath
- relink_command=
- ;;
- esac
-
- # Replace the output file specification.
- link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`
-
- # Delete the old output files.
- $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname
-
- func_show_eval "$link_command" 'exit $?'
-
- if test -n "$postlink_cmds"; then
- func_to_tool_file "$output_objdir/$outputname"
- postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
- func_execute_cmds "$postlink_cmds" 'exit $?'
- fi
-
- # Now create the wrapper script.
- func_verbose "creating $output"
-
- # Quote the relink command for shipping.
- if test -n "$relink_command"; then
- # Preserve any variables that may affect compiler behavior
- for var in $variables_saved_for_relink; do
- if eval test -z \"\${$var+set}\"; then
- relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
- elif eval var_value=\$$var; test -z "$var_value"; then
- relink_command="$var=; export $var; $relink_command"
- else
- func_quote_for_eval "$var_value"
- relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
- fi
- done
- relink_command="(cd `pwd`; $relink_command)"
- relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
- fi
-
- # Only actually do things if not in dry run mode.
- $opt_dry_run || {
- # win32 will think the script is a binary if it has
- # a .exe suffix, so we strip it off here.
- case $output in
- *.exe) func_stripname '' '.exe' "$output"
- output=$func_stripname_result ;;
- esac
- # test for cygwin because mv fails w/o .exe extensions
- case $host in
- *cygwin*)
- exeext=.exe
- func_stripname '' '.exe' "$outputname"
- outputname=$func_stripname_result ;;
- *) exeext= ;;
- esac
- case $host in
- *cygwin* | *mingw* )
- func_dirname_and_basename "$output" "" "."
- output_name=$func_basename_result
- output_path=$func_dirname_result
- cwrappersource=$output_path/$objdir/lt-$output_name.c
- cwrapper=$output_path/$output_name.exe
- $RM $cwrappersource $cwrapper
- trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15
-
- func_emit_cwrapperexe_src > $cwrappersource
-
- # The wrapper executable is built using the $host compiler,
- # because it contains $host paths and files. If cross-
- # compiling, it, like the target executable, must be
- # executed on the $host or under an emulation environment.
- $opt_dry_run || {
- $LTCC $LTCFLAGS -o $cwrapper $cwrappersource
- $STRIP $cwrapper
- }
-
- # Now, create the wrapper script for func_source use:
- func_ltwrapper_scriptname $cwrapper
- $RM $func_ltwrapper_scriptname_result
- trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15
- $opt_dry_run || {
- # note: this script will not be executed, so do not chmod.
- if test "x$build" = "x$host"; then
- $cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result
- else
- func_emit_wrapper no > $func_ltwrapper_scriptname_result
- fi
- }
- ;;
- * )
- $RM $output
- trap "$RM $output; exit $EXIT_FAILURE" 1 2 15
-
- func_emit_wrapper no > $output
- chmod +x $output
- ;;
- esac
- }
- exit $EXIT_SUCCESS
- ;;
- esac
-
- # See if we need to build an old-fashioned archive.
- for oldlib in $oldlibs; do
-
- case $build_libtool_libs in
- convenience)
- oldobjs="$libobjs_save $symfileobj"
- addlibs=$convenience
- build_libtool_libs=no
- ;;
- module)
- oldobjs=$libobjs_save
- addlibs=$old_convenience
- build_libtool_libs=no
- ;;
- *)
- oldobjs="$old_deplibs $non_pic_objects"
- $preload && test -f "$symfileobj" \
- && func_append oldobjs " $symfileobj"
- addlibs=$old_convenience
- ;;
- esac
-
- if test -n "$addlibs"; then
- gentop=$output_objdir/${outputname}x
- func_append generated " $gentop"
-
- func_extract_archives $gentop $addlibs
- func_append oldobjs " $func_extract_archives_result"
- fi
-
- # Do each command in the archive commands.
- if test -n "$old_archive_from_new_cmds" && test yes = "$build_libtool_libs"; then
- cmds=$old_archive_from_new_cmds
- else
-
- # Add any objects from preloaded convenience libraries
- if test -n "$dlprefiles"; then
- gentop=$output_objdir/${outputname}x
- func_append generated " $gentop"
-
- func_extract_archives $gentop $dlprefiles
- func_append oldobjs " $func_extract_archives_result"
- fi
-
- # POSIX demands no paths to be encoded in archives. We have
- # to avoid creating archives with duplicate basenames if we
- # might have to extract them afterwards, e.g., when creating a
- # static archive out of a convenience library, or when linking
- # the entirety of a libtool archive into another (currently
- # not supported by libtool).
- if (for obj in $oldobjs
- do
- func_basename "$obj"
- $ECHO "$func_basename_result"
- done | sort | sort -uc >/dev/null 2>&1); then
- :
- else
- echo "copying selected object files to avoid basename conflicts..."
- gentop=$output_objdir/${outputname}x
- func_append generated " $gentop"
- func_mkdir_p "$gentop"
- save_oldobjs=$oldobjs
- oldobjs=
- counter=1
- for obj in $save_oldobjs
- do
- func_basename "$obj"
- objbase=$func_basename_result
- case " $oldobjs " in
- " ") oldobjs=$obj ;;
- *[\ /]"$objbase "*)
- while :; do
- # Make sure we don't pick an alternate name that also
- # overlaps.
- newobj=lt$counter-$objbase
- func_arith $counter + 1
- counter=$func_arith_result
- case " $oldobjs " in
- *[\ /]"$newobj "*) ;;
- *) if test ! -f "$gentop/$newobj"; then break; fi ;;
- esac
- done
- func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj"
- func_append oldobjs " $gentop/$newobj"
- ;;
- *) func_append oldobjs " $obj" ;;
- esac
- done
- fi
- func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
- tool_oldlib=$func_to_tool_file_result
- eval cmds=\"$old_archive_cmds\"
-
- func_len " $cmds"
- len=$func_len_result
- if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
- cmds=$old_archive_cmds
- elif test -n "$archiver_list_spec"; then
- func_verbose "using command file archive linking..."
- for obj in $oldobjs
- do
- func_to_tool_file "$obj"
- $ECHO "$func_to_tool_file_result"
- done > $output_objdir/$libname.libcmd
- func_to_tool_file "$output_objdir/$libname.libcmd"
- oldobjs=" $archiver_list_spec$func_to_tool_file_result"
- cmds=$old_archive_cmds
- else
- # the command line is too long to link in one step, link in parts
- func_verbose "using piecewise archive linking..."
- save_RANLIB=$RANLIB
- RANLIB=:
- objlist=
- concat_cmds=
- save_oldobjs=$oldobjs
- oldobjs=
- # Is there a better way of finding the last object in the list?
- for obj in $save_oldobjs
- do
- last_oldobj=$obj
- done
- eval test_cmds=\"$old_archive_cmds\"
- func_len " $test_cmds"
- len0=$func_len_result
- len=$len0
- for obj in $save_oldobjs
- do
- func_len " $obj"
- func_arith $len + $func_len_result
- len=$func_arith_result
- func_append objlist " $obj"
- if test "$len" -lt "$max_cmd_len"; then
- :
- else
- # the above command should be used before it gets too long
- oldobjs=$objlist
- if test "$obj" = "$last_oldobj"; then
- RANLIB=$save_RANLIB
- fi
- test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- eval concat_cmds=\"\$concat_cmds$old_archive_cmds\"
- objlist=
- len=$len0
- fi
- done
- RANLIB=$save_RANLIB
- oldobjs=$objlist
- if test -z "$oldobjs"; then
- eval cmds=\"\$concat_cmds\"
- else
- eval cmds=\"\$concat_cmds~\$old_archive_cmds\"
- fi
- fi
- fi
- func_execute_cmds "$cmds" 'exit $?'
- done
-
- test -n "$generated" && \
- func_show_eval "${RM}r$generated"
-
- # Now create the libtool archive.
- case $output in
- *.la)
- old_library=
- test yes = "$build_old_libs" && old_library=$libname.$libext
- func_verbose "creating $output"
-
- # Preserve any variables that may affect compiler behavior
- for var in $variables_saved_for_relink; do
- if eval test -z \"\${$var+set}\"; then
- relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
- elif eval var_value=\$$var; test -z "$var_value"; then
- relink_command="$var=; export $var; $relink_command"
- else
- func_quote_for_eval "$var_value"
- relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
- fi
- done
- # Quote the link command for shipping.
- relink_command="(cd `pwd`; $SHELL \"$progpath\" $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
- relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
- if test yes = "$hardcode_automatic"; then
- relink_command=
- fi
-
- # Only create the output if not a dry run.
- $opt_dry_run || {
- for installed in no yes; do
- if test yes = "$installed"; then
- if test -z "$install_libdir"; then
- break
- fi
- output=$output_objdir/${outputname}i
- # Replace all uninstalled libtool libraries with the installed ones
- newdependency_libs=
- for deplib in $dependency_libs; do
- case $deplib in
- *.la)
- func_basename "$deplib"
- name=$func_basename_result
- func_resolve_sysroot "$deplib"
- eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result`
- test -z "$libdir" && \
- func_fatal_error "'$deplib' is not a valid libtool archive"
- func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name"
- ;;
- -L*)
- func_stripname -L '' "$deplib"
- func_replace_sysroot "$func_stripname_result"
- func_append newdependency_libs " -L$func_replace_sysroot_result"
- ;;
- -R*)
- func_stripname -R '' "$deplib"
- func_replace_sysroot "$func_stripname_result"
- func_append newdependency_libs " -R$func_replace_sysroot_result"
- ;;
- *) func_append newdependency_libs " $deplib" ;;
- esac
- done
- dependency_libs=$newdependency_libs
- newdlfiles=
-
- for lib in $dlfiles; do
- case $lib in
- *.la)
- func_basename "$lib"
- name=$func_basename_result
- eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
- test -z "$libdir" && \
- func_fatal_error "'$lib' is not a valid libtool archive"
- func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name"
- ;;
- *) func_append newdlfiles " $lib" ;;
- esac
- done
- dlfiles=$newdlfiles
- newdlprefiles=
- for lib in $dlprefiles; do
- case $lib in
- *.la)
- # Only pass preopened files to the pseudo-archive (for
- # eventual linking with the app. that links it) if we
- # didn't already link the preopened objects directly into
- # the library:
- func_basename "$lib"
- name=$func_basename_result
- eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
- test -z "$libdir" && \
- func_fatal_error "'$lib' is not a valid libtool archive"
- func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name"
- ;;
- esac
- done
- dlprefiles=$newdlprefiles
- else
- newdlfiles=
- for lib in $dlfiles; do
- case $lib in
- [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;;
- *) abs=`pwd`"/$lib" ;;
- esac
- func_append newdlfiles " $abs"
- done
- dlfiles=$newdlfiles
- newdlprefiles=
- for lib in $dlprefiles; do
- case $lib in
- [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;;
- *) abs=`pwd`"/$lib" ;;
- esac
- func_append newdlprefiles " $abs"
- done
- dlprefiles=$newdlprefiles
- fi
- $RM $output
- # place dlname in correct position for cygwin
- # In fact, it would be nice if we could use this code for all target
- # systems that can't hard-code library paths into their executables
- # and that have no shared library path variable independent of PATH,
- # but it turns out we can't easily determine that from inspecting
- # libtool variables, so we have to hard-code the OSs to which it
- # applies here; at the moment, that means platforms that use the PE
- # object format with DLL files. See the long comment at the top of
- # tests/bindir.at for full details.
- tdlname=$dlname
- case $host,$output,$installed,$module,$dlname in
- *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll)
- # If a -bindir argument was supplied, place the dll there.
- if test -n "$bindir"; then
- func_relative_path "$install_libdir" "$bindir"
- tdlname=$func_relative_path_result/$dlname
- else
- # Otherwise fall back on heuristic.
- tdlname=../bin/$dlname
- fi
- ;;
- esac
- $ECHO > $output "\
-# $outputname - a libtool library file
-# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# The name that we can dlopen(3).
-dlname='$tdlname'
-
-# Names of this library.
-library_names='$library_names'
-
-# The name of the static archive.
-old_library='$old_library'
-
-# Linker flags that cannot go in dependency_libs.
-inherited_linker_flags='$new_inherited_linker_flags'
-
-# Libraries that this one depends upon.
-dependency_libs='$dependency_libs'
-
-# Names of additional weak libraries provided by this library
-weak_library_names='$weak_libs'
-
-# Version information for $libname.
-current=$current
-age=$age
-revision=$revision
-
-# Is this an already installed library?
-installed=$installed
-
-# Should we warn about portability when linking against -modules?
-shouldnotlink=$module
-
-# Files to dlopen/dlpreopen
-dlopen='$dlfiles'
-dlpreopen='$dlprefiles'
-
-# Directory that this library needs to be installed in:
-libdir='$install_libdir'"
- if test no,yes = "$installed,$need_relink"; then
- $ECHO >> $output "\
-relink_command=\"$relink_command\""
- fi
- done
- }
-
- # Do a symbolic link so that the libtool archive can be found in
- # LD_LIBRARY_PATH before the program is installed.
- func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?'
- ;;
- esac
- exit $EXIT_SUCCESS
-}
-
-if test link = "$opt_mode" || test relink = "$opt_mode"; then
- func_mode_link ${1+"$@"}
-fi
-
-
-# func_mode_uninstall arg...
-func_mode_uninstall ()
-{
- $debug_cmd
-
- RM=$nonopt
- files=
- rmforce=false
- exit_status=0
-
- # This variable tells wrapper scripts just to set variables rather
- # than running their programs.
- libtool_install_magic=$magic
-
- for arg
- do
- case $arg in
- -f) func_append RM " $arg"; rmforce=: ;;
- -*) func_append RM " $arg" ;;
- *) func_append files " $arg" ;;
- esac
- done
-
- test -z "$RM" && \
- func_fatal_help "you must specify an RM program"
-
- rmdirs=
-
- for file in $files; do
- func_dirname "$file" "" "."
- dir=$func_dirname_result
- if test . = "$dir"; then
- odir=$objdir
- else
- odir=$dir/$objdir
- fi
- func_basename "$file"
- name=$func_basename_result
- test uninstall = "$opt_mode" && odir=$dir
-
- # Remember odir for removal later, being careful to avoid duplicates
- if test clean = "$opt_mode"; then
- case " $rmdirs " in
- *" $odir "*) ;;
- *) func_append rmdirs " $odir" ;;
- esac
- fi
-
- # Don't error if the file doesn't exist and rm -f was used.
- if { test -L "$file"; } >/dev/null 2>&1 ||
- { test -h "$file"; } >/dev/null 2>&1 ||
- test -f "$file"; then
- :
- elif test -d "$file"; then
- exit_status=1
- continue
- elif $rmforce; then
- continue
- fi
-
- rmfiles=$file
-
- case $name in
- *.la)
- # Possibly a libtool archive, so verify it.
- if func_lalib_p "$file"; then
- func_source $dir/$name
-
- # Delete the libtool libraries and symlinks.
- for n in $library_names; do
- func_append rmfiles " $odir/$n"
- done
- test -n "$old_library" && func_append rmfiles " $odir/$old_library"
-
- case $opt_mode in
- clean)
- case " $library_names " in
- *" $dlname "*) ;;
- *) test -n "$dlname" && func_append rmfiles " $odir/$dlname" ;;
- esac
- test -n "$libdir" && func_append rmfiles " $odir/$name $odir/${name}i"
- ;;
- uninstall)
- if test -n "$library_names"; then
- # Do each command in the postuninstall commands.
- func_execute_cmds "$postuninstall_cmds" '$rmforce || exit_status=1'
- fi
-
- if test -n "$old_library"; then
- # Do each command in the old_postuninstall commands.
- func_execute_cmds "$old_postuninstall_cmds" '$rmforce || exit_status=1'
- fi
- # FIXME: should reinstall the best remaining shared library.
- ;;
- esac
- fi
- ;;
-
- *.lo)
- # Possibly a libtool object, so verify it.
- if func_lalib_p "$file"; then
-
- # Read the .lo file
- func_source $dir/$name
-
- # Add PIC object to the list of files to remove.
- if test -n "$pic_object" && test none != "$pic_object"; then
- func_append rmfiles " $dir/$pic_object"
- fi
-
- # Add non-PIC object to the list of files to remove.
- if test -n "$non_pic_object" && test none != "$non_pic_object"; then
- func_append rmfiles " $dir/$non_pic_object"
- fi
- fi
- ;;
-
- *)
- if test clean = "$opt_mode"; then
- noexename=$name
- case $file in
- *.exe)
- func_stripname '' '.exe' "$file"
- file=$func_stripname_result
- func_stripname '' '.exe' "$name"
- noexename=$func_stripname_result
- # $file with .exe has already been added to rmfiles,
- # add $file without .exe
- func_append rmfiles " $file"
- ;;
- esac
- # Do a test to see if this is a libtool program.
- if func_ltwrapper_p "$file"; then
- if func_ltwrapper_executable_p "$file"; then
- func_ltwrapper_scriptname "$file"
- relink_command=
- func_source $func_ltwrapper_scriptname_result
- func_append rmfiles " $func_ltwrapper_scriptname_result"
- else
- relink_command=
- func_source $dir/$noexename
- fi
-
- # note $name still contains .exe if it was in $file originally
- # as does the version of $file that was added into $rmfiles
- func_append rmfiles " $odir/$name $odir/${name}S.$objext"
- if test yes = "$fast_install" && test -n "$relink_command"; then
- func_append rmfiles " $odir/lt-$name"
- fi
- if test "X$noexename" != "X$name"; then
- func_append rmfiles " $odir/lt-$noexename.c"
- fi
- fi
- fi
- ;;
- esac
- func_show_eval "$RM $rmfiles" 'exit_status=1'
- done
-
- # Try to remove the $objdir's in the directories where we deleted files
- for dir in $rmdirs; do
- if test -d "$dir"; then
- func_show_eval "rmdir $dir >/dev/null 2>&1"
- fi
- done
-
- exit $exit_status
-}
-
-if test uninstall = "$opt_mode" || test clean = "$opt_mode"; then
- func_mode_uninstall ${1+"$@"}
-fi
-
-test -z "$opt_mode" && {
- help=$generic_help
- func_fatal_help "you must specify a MODE"
-}
-
-test -z "$exec_cmd" && \
- func_fatal_help "invalid operation mode '$opt_mode'"
-
-if test -n "$exec_cmd"; then
- eval exec "$exec_cmd"
- exit $EXIT_FAILURE
-fi
-
-exit $exit_status
-
-
-# The TAGs below are defined such that we never get into a situation
-# where we disable both kinds of libraries. Given conflicting
-# choices, we go for a static library, that is the most portable,
-# since we can't tell whether shared libraries were disabled because
-# the user asked for that or because the platform doesn't support
-# them. This is particularly important on AIX, because we don't
-# support having both static and shared libraries enabled at the same
-# time on that platform, so we default to a shared-only configuration.
-# If a disable-shared tag is given, we'll fallback to a static-only
-# configuration. But we'll never go from static-only to shared-only.
-
-# ### BEGIN LIBTOOL TAG CONFIG: disable-shared
-build_libtool_libs=no
-build_old_libs=yes
-# ### END LIBTOOL TAG CONFIG: disable-shared
-
-# ### BEGIN LIBTOOL TAG CONFIG: disable-static
-build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac`
-# ### END LIBTOOL TAG CONFIG: disable-static
-
-# Local Variables:
-# mode:shell-script
-# sh-indentation:2
-# End:
diff --git a/3rdparty/libpng/libpng-1.6.37/mips/.deps/.dirstamp b/3rdparty/libpng/libpng-1.6.37/mips/.deps/.dirstamp
deleted file mode 100644
index e69de29..0000000
--- a/3rdparty/libpng/libpng-1.6.37/mips/.deps/.dirstamp
+++ /dev/null
diff --git a/3rdparty/libpng/libpng-1.6.37/mips/.deps/filter_msa_intrinsics.Plo b/3rdparty/libpng/libpng-1.6.37/mips/.deps/filter_msa_intrinsics.Plo
deleted file mode 100644
index 2a74c0a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/mips/.deps/filter_msa_intrinsics.Plo
+++ /dev/null
@@ -1,171 +0,0 @@
-mips/filter_msa_intrinsics.lo: mips/filter_msa_intrinsics.c \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdint.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wchar.h \
- mips/../pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/endian.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/endian.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/byteswap.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/select.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/select.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/sysmacros.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/pthreadtypes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/alloca.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- config.h mips/../pnglibconf.h mips/../png.h mips/../pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix2_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- mips/../pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/getopt.h \
- mips/../pnginfo.h mips/../pngdebug.h
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdint.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wchar.h:
-
-mips/../pngpriv.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/endian.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/endian.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/byteswap.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/select.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/select.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/sysmacros.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/pthreadtypes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/alloca.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
-
-config.h:
-
-mips/../pnglibconf.h:
-
-mips/../png.h:
-
-mips/../pngconf.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix2_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
-
-mips/../pngstruct.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/getopt.h:
-
-mips/../pnginfo.h:
-
-mips/../pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/mips/.deps/mips_init.Plo b/3rdparty/libpng/libpng-1.6.37/mips/.deps/mips_init.Plo
deleted file mode 100644
index 8f8864c..0000000
--- a/3rdparty/libpng/libpng-1.6.37/mips/.deps/mips_init.Plo
+++ /dev/null
@@ -1,135 +0,0 @@
-mips/mips_init.lo: mips/mips_init.c \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
- mips/../pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- config.h mips/../pnglibconf.h mips/../png.h mips/../pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- mips/../pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h \
- mips/../pnginfo.h mips/../pngdebug.h
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h:
-
-mips/../pngpriv.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
-
-config.h:
-
-mips/../pnglibconf.h:
-
-mips/../png.h:
-
-mips/../pngconf.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
-
-mips/../pngstruct.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
-
-mips/../pnginfo.h:
-
-mips/../pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/mips/.dirstamp b/3rdparty/libpng/libpng-1.6.37/mips/.dirstamp
deleted file mode 100644
index e69de29..0000000
--- a/3rdparty/libpng/libpng-1.6.37/mips/.dirstamp
+++ /dev/null
diff --git a/3rdparty/libpng/libpng-1.6.37/mips/.libs/filter_msa_intrinsics.o b/3rdparty/libpng/libpng-1.6.37/mips/.libs/filter_msa_intrinsics.o
deleted file mode 100644
index a3b8bb0..0000000
--- a/3rdparty/libpng/libpng-1.6.37/mips/.libs/filter_msa_intrinsics.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/mips/.libs/mips_init.o b/3rdparty/libpng/libpng-1.6.37/mips/.libs/mips_init.o
deleted file mode 100644
index 616a783..0000000
--- a/3rdparty/libpng/libpng-1.6.37/mips/.libs/mips_init.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/mips/filter_msa_intrinsics.c b/3rdparty/libpng/libpng-1.6.37/mips/filter_msa_intrinsics.c
deleted file mode 100644
index a579179..0000000
--- a/3rdparty/libpng/libpng-1.6.37/mips/filter_msa_intrinsics.c
+++ /dev/null
@@ -1,808 +0,0 @@
-
-/* filter_msa_intrinsics.c - MSA optimised filter functions
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 2016 Glenn Randers-Pehrson
- * Written by Mandar Sahastrabuddhe, August 2016.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#include <stdio.h>
-#include <stdint.h>
-#include "../pngpriv.h"
-
-#ifdef PNG_READ_SUPPORTED
-
-/* This code requires -mfpu=msa on the command line: */
-#if PNG_MIPS_MSA_IMPLEMENTATION == 1 /* intrinsics code from pngpriv.h */
-
-#include <msa.h>
-
-/* libpng row pointers are not necessarily aligned to any particular boundary,
- * however this code will only work with appropriate alignment. mips/mips_init.c
- * checks for this (and will not compile unless it is done). This code uses
- * variants of png_aligncast to avoid compiler warnings.
- */
-#define png_ptr(type,pointer) png_aligncast(type *,pointer)
-#define png_ptrc(type,pointer) png_aligncastconst(const type *,pointer)
-
-/* The following relies on a variable 'temp_pointer' being declared with type
- * 'type'. This is written this way just to hide the GCC strict aliasing
- * warning; note that the code is safe because there never is an alias between
- * the input and output pointers.
- */
-#define png_ldr(type,pointer)\
- (temp_pointer = png_ptr(type,pointer), *temp_pointer)
-
-#if PNG_MIPS_MSA_OPT > 0
-
-#ifdef CLANG_BUILD
- #define MSA_SRLI_B(a, b) __msa_srli_b((v16i8) a, b)
-
- #define LW(psrc) \
- ( { \
- uint8_t *psrc_lw_m = (uint8_t *) (psrc); \
- uint32_t val_m; \
- \
- asm volatile ( \
- "lw %[val_m], %[psrc_lw_m] \n\t" \
- \
- : [val_m] "=r" (val_m) \
- : [psrc_lw_m] "m" (*psrc_lw_m) \
- ); \
- \
- val_m; \
- } )
-
- #define SH(val, pdst) \
- { \
- uint8_t *pdst_sh_m = (uint8_t *) (pdst); \
- uint16_t val_m = (val); \
- \
- asm volatile ( \
- "sh %[val_m], %[pdst_sh_m] \n\t" \
- \
- : [pdst_sh_m] "=m" (*pdst_sh_m) \
- : [val_m] "r" (val_m) \
- ); \
- }
-
- #define SW(val, pdst) \
- { \
- uint8_t *pdst_sw_m = (uint8_t *) (pdst); \
- uint32_t val_m = (val); \
- \
- asm volatile ( \
- "sw %[val_m], %[pdst_sw_m] \n\t" \
- \
- : [pdst_sw_m] "=m" (*pdst_sw_m) \
- : [val_m] "r" (val_m) \
- ); \
- }
-
- #if (__mips == 64)
- #define SD(val, pdst) \
- { \
- uint8_t *pdst_sd_m = (uint8_t *) (pdst); \
- uint64_t val_m = (val); \
- \
- asm volatile ( \
- "sd %[val_m], %[pdst_sd_m] \n\t" \
- \
- : [pdst_sd_m] "=m" (*pdst_sd_m) \
- : [val_m] "r" (val_m) \
- ); \
- }
- #else
- #define SD(val, pdst) \
- { \
- uint8_t *pdst_sd_m = (uint8_t *) (pdst); \
- uint32_t val0_m, val1_m; \
- \
- val0_m = (uint32_t) ((val) & 0x00000000FFFFFFFF); \
- val1_m = (uint32_t) (((val) >> 32) & 0x00000000FFFFFFFF); \
- \
- SW(val0_m, pdst_sd_m); \
- SW(val1_m, pdst_sd_m + 4); \
- }
- #endif
-#else
- #define MSA_SRLI_B(a, b) (a >> b)
-
-#if (__mips_isa_rev >= 6)
- #define LW(psrc) \
- ( { \
- uint8_t *psrc_lw_m = (uint8_t *) (psrc); \
- uint32_t val_m; \
- \
- asm volatile ( \
- "lw %[val_m], %[psrc_lw_m] \n\t" \
- \
- : [val_m] "=r" (val_m) \
- : [psrc_lw_m] "m" (*psrc_lw_m) \
- ); \
- \
- val_m; \
- } )
-
- #define SH(val, pdst) \
- { \
- uint8_t *pdst_sh_m = (uint8_t *) (pdst); \
- uint16_t val_m = (val); \
- \
- asm volatile ( \
- "sh %[val_m], %[pdst_sh_m] \n\t" \
- \
- : [pdst_sh_m] "=m" (*pdst_sh_m) \
- : [val_m] "r" (val_m) \
- ); \
- }
-
- #define SW(val, pdst) \
- { \
- uint8_t *pdst_sw_m = (uint8_t *) (pdst); \
- uint32_t val_m = (val); \
- \
- asm volatile ( \
- "sw %[val_m], %[pdst_sw_m] \n\t" \
- \
- : [pdst_sw_m] "=m" (*pdst_sw_m) \
- : [val_m] "r" (val_m) \
- ); \
- }
-
- #if (__mips == 64)
- #define SD(val, pdst) \
- { \
- uint8_t *pdst_sd_m = (uint8_t *) (pdst); \
- uint64_t val_m = (val); \
- \
- asm volatile ( \
- "sd %[val_m], %[pdst_sd_m] \n\t" \
- \
- : [pdst_sd_m] "=m" (*pdst_sd_m) \
- : [val_m] "r" (val_m) \
- ); \
- }
- #else
- #define SD(val, pdst) \
- { \
- uint8_t *pdst_sd_m = (uint8_t *) (pdst); \
- uint32_t val0_m, val1_m; \
- \
- val0_m = (uint32_t) ((val) & 0x00000000FFFFFFFF); \
- val1_m = (uint32_t) (((val) >> 32) & 0x00000000FFFFFFFF); \
- \
- SW(val0_m, pdst_sd_m); \
- SW(val1_m, pdst_sd_m + 4); \
- }
- #endif
-#else // !(__mips_isa_rev >= 6)
- #define LW(psrc) \
- ( { \
- uint8_t *psrc_lw_m = (uint8_t *) (psrc); \
- uint32_t val_m; \
- \
- asm volatile ( \
- "ulw %[val_m], %[psrc_lw_m] \n\t" \
- \
- : [val_m] "=r" (val_m) \
- : [psrc_lw_m] "m" (*psrc_lw_m) \
- ); \
- \
- val_m; \
- } )
-
- #define SH(val, pdst) \
- { \
- uint8_t *pdst_sh_m = (uint8_t *) (pdst); \
- uint16_t val_m = (val); \
- \
- asm volatile ( \
- "ush %[val_m], %[pdst_sh_m] \n\t" \
- \
- : [pdst_sh_m] "=m" (*pdst_sh_m) \
- : [val_m] "r" (val_m) \
- ); \
- }
-
- #define SW(val, pdst) \
- { \
- uint8_t *pdst_sw_m = (uint8_t *) (pdst); \
- uint32_t val_m = (val); \
- \
- asm volatile ( \
- "usw %[val_m], %[pdst_sw_m] \n\t" \
- \
- : [pdst_sw_m] "=m" (*pdst_sw_m) \
- : [val_m] "r" (val_m) \
- ); \
- }
-
- #define SD(val, pdst) \
- { \
- uint8_t *pdst_sd_m = (uint8_t *) (pdst); \
- uint32_t val0_m, val1_m; \
- \
- val0_m = (uint32_t) ((val) & 0x00000000FFFFFFFF); \
- val1_m = (uint32_t) (((val) >> 32) & 0x00000000FFFFFFFF); \
- \
- SW(val0_m, pdst_sd_m); \
- SW(val1_m, pdst_sd_m + 4); \
- }
-
- #define SW_ZERO(pdst) \
- { \
- uint8_t *pdst_m = (uint8_t *) (pdst); \
- \
- asm volatile ( \
- "usw $0, %[pdst_m] \n\t" \
- \
- : [pdst_m] "=m" (*pdst_m) \
- : \
- ); \
- }
-#endif // (__mips_isa_rev >= 6)
-#endif
-
-#define LD_B(RTYPE, psrc) *((RTYPE *) (psrc))
-#define LD_UB(...) LD_B(v16u8, __VA_ARGS__)
-#define LD_B2(RTYPE, psrc, stride, out0, out1) \
-{ \
- out0 = LD_B(RTYPE, (psrc)); \
- out1 = LD_B(RTYPE, (psrc) + stride); \
-}
-#define LD_UB2(...) LD_B2(v16u8, __VA_ARGS__)
-#define LD_B4(RTYPE, psrc, stride, out0, out1, out2, out3) \
-{ \
- LD_B2(RTYPE, (psrc), stride, out0, out1); \
- LD_B2(RTYPE, (psrc) + 2 * stride , stride, out2, out3); \
-}
-#define LD_UB4(...) LD_B4(v16u8, __VA_ARGS__)
-
-#define ST_B(RTYPE, in, pdst) *((RTYPE *) (pdst)) = (in)
-#define ST_UB(...) ST_B(v16u8, __VA_ARGS__)
-#define ST_B2(RTYPE, in0, in1, pdst, stride) \
-{ \
- ST_B(RTYPE, in0, (pdst)); \
- ST_B(RTYPE, in1, (pdst) + stride); \
-}
-#define ST_UB2(...) ST_B2(v16u8, __VA_ARGS__)
-#define ST_B4(RTYPE, in0, in1, in2, in3, pdst, stride) \
-{ \
- ST_B2(RTYPE, in0, in1, (pdst), stride); \
- ST_B2(RTYPE, in2, in3, (pdst) + 2 * stride, stride); \
-}
-#define ST_UB4(...) ST_B4(v16u8, __VA_ARGS__)
-
-#define ADD2(in0, in1, in2, in3, out0, out1) \
-{ \
- out0 = in0 + in1; \
- out1 = in2 + in3; \
-}
-#define ADD3(in0, in1, in2, in3, in4, in5, \
- out0, out1, out2) \
-{ \
- ADD2(in0, in1, in2, in3, out0, out1); \
- out2 = in4 + in5; \
-}
-#define ADD4(in0, in1, in2, in3, in4, in5, in6, in7, \
- out0, out1, out2, out3) \
-{ \
- ADD2(in0, in1, in2, in3, out0, out1); \
- ADD2(in4, in5, in6, in7, out2, out3); \
-}
-
-#define ILVR_B2(RTYPE, in0, in1, in2, in3, out0, out1) \
-{ \
- out0 = (RTYPE) __msa_ilvr_b((v16i8) in0, (v16i8) in1); \
- out1 = (RTYPE) __msa_ilvr_b((v16i8) in2, (v16i8) in3); \
-}
-#define ILVR_B2_SH(...) ILVR_B2(v8i16, __VA_ARGS__)
-
-#define HSUB_UB2(RTYPE, in0, in1, out0, out1) \
-{ \
- out0 = (RTYPE) __msa_hsub_u_h((v16u8) in0, (v16u8) in0); \
- out1 = (RTYPE) __msa_hsub_u_h((v16u8) in1, (v16u8) in1); \
-}
-#define HSUB_UB2_SH(...) HSUB_UB2(v8i16, __VA_ARGS__)
-
-#define SLDI_B2_0(RTYPE, in0, in1, out0, out1, slide_val) \
-{ \
- v16i8 zero_m = { 0 }; \
- out0 = (RTYPE) __msa_sldi_b((v16i8) zero_m, (v16i8) in0, slide_val); \
- out1 = (RTYPE) __msa_sldi_b((v16i8) zero_m, (v16i8) in1, slide_val); \
-}
-#define SLDI_B2_0_UB(...) SLDI_B2_0(v16u8, __VA_ARGS__)
-
-#define SLDI_B3_0(RTYPE, in0, in1, in2, out0, out1, out2, slide_val) \
-{ \
- v16i8 zero_m = { 0 }; \
- SLDI_B2_0(RTYPE, in0, in1, out0, out1, slide_val); \
- out2 = (RTYPE) __msa_sldi_b((v16i8) zero_m, (v16i8) in2, slide_val); \
-}
-#define SLDI_B3_0_UB(...) SLDI_B3_0(v16u8, __VA_ARGS__)
-
-#define ILVEV_W2(RTYPE, in0, in1, in2, in3, out0, out1) \
-{ \
- out0 = (RTYPE) __msa_ilvev_w((v4i32) in1, (v4i32) in0); \
- out1 = (RTYPE) __msa_ilvev_w((v4i32) in3, (v4i32) in2); \
-}
-#define ILVEV_W2_UB(...) ILVEV_W2(v16u8, __VA_ARGS__)
-
-#define ADD_ABS_H3(RTYPE, in0, in1, in2, out0, out1, out2) \
-{ \
- RTYPE zero = {0}; \
- \
- out0 = __msa_add_a_h((v8i16) zero, in0); \
- out1 = __msa_add_a_h((v8i16) zero, in1); \
- out2 = __msa_add_a_h((v8i16) zero, in2); \
-}
-#define ADD_ABS_H3_SH(...) ADD_ABS_H3(v8i16, __VA_ARGS__)
-
-#define VSHF_B2(RTYPE, in0, in1, in2, in3, mask0, mask1, out0, out1) \
-{ \
- out0 = (RTYPE) __msa_vshf_b((v16i8) mask0, (v16i8) in1, (v16i8) in0); \
- out1 = (RTYPE) __msa_vshf_b((v16i8) mask1, (v16i8) in3, (v16i8) in2); \
-}
-#define VSHF_B2_UB(...) VSHF_B2(v16u8, __VA_ARGS__)
-
-#define CMP_AND_SELECT(inp0, inp1, inp2, inp3, inp4, inp5, out0) \
-{ \
- v8i16 _sel_h0, _sel_h1; \
- v16u8 _sel_b0, _sel_b1; \
- _sel_h0 = (v8i16) __msa_clt_u_h((v8u16) inp1, (v8u16) inp0); \
- _sel_b0 = (v16u8) __msa_pckev_b((v16i8) _sel_h0, (v16i8) _sel_h0); \
- inp0 = (v8i16) __msa_bmnz_v((v16u8) inp0, (v16u8) inp1, (v16u8) _sel_h0); \
- inp4 = (v16u8) __msa_bmnz_v(inp3, inp4, _sel_b0); \
- _sel_h1 = (v8i16) __msa_clt_u_h((v8u16) inp2, (v8u16) inp0); \
- _sel_b1 = (v16u8) __msa_pckev_b((v16i8) _sel_h1, (v16i8) _sel_h1); \
- inp4 = (v16u8) __msa_bmnz_v(inp4, inp5, _sel_b1); \
- out0 += inp4; \
-}
-
-void png_read_filter_row_up_msa(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- size_t i, cnt, cnt16, cnt32;
- size_t istop = row_info->rowbytes;
- png_bytep rp = row;
- png_const_bytep pp = prev_row;
- v16u8 src0, src1, src2, src3, src4, src5, src6, src7;
-
- for (i = 0; i < (istop >> 6); i++)
- {
- LD_UB4(rp, 16, src0, src1, src2, src3);
- LD_UB4(pp, 16, src4, src5, src6, src7);
- pp += 64;
-
- ADD4(src0, src4, src1, src5, src2, src6, src3, src7,
- src0, src1, src2, src3);
-
- ST_UB4(src0, src1, src2, src3, rp, 16);
- rp += 64;
- }
-
- if (istop & 0x3F)
- {
- cnt32 = istop & 0x20;
- cnt16 = istop & 0x10;
- cnt = istop & 0xF;
-
- if(cnt32)
- {
- if (cnt16 && cnt)
- {
- LD_UB4(rp, 16, src0, src1, src2, src3);
- LD_UB4(pp, 16, src4, src5, src6, src7);
-
- ADD4(src0, src4, src1, src5, src2, src6, src3, src7,
- src0, src1, src2, src3);
-
- ST_UB4(src0, src1, src2, src3, rp, 16);
- rp += 64;
- }
- else if (cnt16 || cnt)
- {
- LD_UB2(rp, 16, src0, src1);
- LD_UB2(pp, 16, src4, src5);
- pp += 32;
- src2 = LD_UB(rp + 32);
- src6 = LD_UB(pp);
-
- ADD3(src0, src4, src1, src5, src2, src6, src0, src1, src2);
-
- ST_UB2(src0, src1, rp, 16);
- rp += 32;
- ST_UB(src2, rp);
- rp += 16;
- }
- else
- {
- LD_UB2(rp, 16, src0, src1);
- LD_UB2(pp, 16, src4, src5);
-
- ADD2(src0, src4, src1, src5, src0, src1);
-
- ST_UB2(src0, src1, rp, 16);
- rp += 32;
- }
- }
- else if (cnt16 && cnt)
- {
- LD_UB2(rp, 16, src0, src1);
- LD_UB2(pp, 16, src4, src5);
-
- ADD2(src0, src4, src1, src5, src0, src1);
-
- ST_UB2(src0, src1, rp, 16);
- rp += 32;
- }
- else if (cnt16 || cnt)
- {
- src0 = LD_UB(rp);
- src4 = LD_UB(pp);
- pp += 16;
-
- src0 += src4;
-
- ST_UB(src0, rp);
- rp += 16;
- }
- }
-}
-
-void png_read_filter_row_sub4_msa(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- size_t count;
- size_t istop = row_info->rowbytes;
- png_bytep src = row;
- png_bytep nxt = row + 4;
- int32_t inp0;
- v16u8 src0, src1, src2, src3, src4;
- v16u8 dst0, dst1;
- v16u8 zero = { 0 };
-
- istop -= 4;
-
- inp0 = LW(src);
- src += 4;
- src0 = (v16u8) __msa_insert_w((v4i32) zero, 0, inp0);
-
- for (count = 0; count < istop; count += 16)
- {
- src1 = LD_UB(src);
- src += 16;
-
- src2 = (v16u8) __msa_sldi_b((v16i8) zero, (v16i8) src1, 4);
- src3 = (v16u8) __msa_sldi_b((v16i8) zero, (v16i8) src1, 8);
- src4 = (v16u8) __msa_sldi_b((v16i8) zero, (v16i8) src1, 12);
- src1 += src0;
- src2 += src1;
- src3 += src2;
- src4 += src3;
- src0 = src4;
- ILVEV_W2_UB(src1, src2, src3, src4, dst0, dst1);
- dst0 = (v16u8) __msa_pckev_d((v2i64) dst1, (v2i64) dst0);
-
- ST_UB(dst0, nxt);
- nxt += 16;
- }
-}
-
-void png_read_filter_row_sub3_msa(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- size_t count;
- size_t istop = row_info->rowbytes;
- png_bytep src = row;
- png_bytep nxt = row + 3;
- int64_t out0;
- int32_t inp0, out1;
- v16u8 src0, src1, src2, src3, src4, dst0, dst1;
- v16u8 zero = { 0 };
- v16i8 mask0 = { 0, 1, 2, 16, 17, 18, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
- v16i8 mask1 = { 0, 1, 2, 3, 4, 5, 16, 17, 18, 19, 20, 21, 0, 0, 0, 0 };
-
- istop -= 3;
-
- inp0 = LW(src);
- src += 3;
- src0 = (v16u8) __msa_insert_w((v4i32) zero, 0, inp0);
-
- for (count = 0; count < istop; count += 12)
- {
- src1 = LD_UB(src);
- src += 12;
-
- src2 = (v16u8) __msa_sldi_b((v16i8) zero, (v16i8) src1, 3);
- src3 = (v16u8) __msa_sldi_b((v16i8) zero, (v16i8) src1, 6);
- src4 = (v16u8) __msa_sldi_b((v16i8) zero, (v16i8) src1, 9);
- src1 += src0;
- src2 += src1;
- src3 += src2;
- src4 += src3;
- src0 = src4;
- VSHF_B2_UB(src1, src2, src3, src4, mask0, mask0, dst0, dst1);
- dst0 = (v16u8) __msa_vshf_b(mask1, (v16i8) dst1, (v16i8) dst0);
- out0 = __msa_copy_s_d((v2i64) dst0, 0);
- out1 = __msa_copy_s_w((v4i32) dst0, 2);
-
- SD(out0, nxt);
- nxt += 8;
- SW(out1, nxt);
- nxt += 4;
- }
-}
-
-void png_read_filter_row_avg4_msa(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- size_t i;
- png_bytep src = row;
- png_bytep nxt = row;
- png_const_bytep pp = prev_row;
- size_t istop = row_info->rowbytes - 4;
- int32_t inp0, inp1, out0;
- v16u8 src0, src1, src2, src3, src4, src5, src6, src7, src8, src9, dst0, dst1;
- v16u8 zero = { 0 };
-
- inp0 = LW(pp);
- pp += 4;
- inp1 = LW(src);
- src += 4;
- src0 = (v16u8) __msa_insert_w((v4i32) zero, 0, inp0);
- src1 = (v16u8) __msa_insert_w((v4i32) zero, 0, inp1);
- src0 = (v16u8) MSA_SRLI_B(src0, 1);
- src1 += src0;
- out0 = __msa_copy_s_w((v4i32) src1, 0);
- SW(out0, nxt);
- nxt += 4;
-
- for (i = 0; i < istop; i += 16)
- {
- src2 = LD_UB(pp);
- pp += 16;
- src6 = LD_UB(src);
- src += 16;
-
- SLDI_B2_0_UB(src2, src6, src3, src7, 4);
- SLDI_B2_0_UB(src2, src6, src4, src8, 8);
- SLDI_B2_0_UB(src2, src6, src5, src9, 12);
- src2 = __msa_ave_u_b(src2, src1);
- src6 += src2;
- src3 = __msa_ave_u_b(src3, src6);
- src7 += src3;
- src4 = __msa_ave_u_b(src4, src7);
- src8 += src4;
- src5 = __msa_ave_u_b(src5, src8);
- src9 += src5;
- src1 = src9;
- ILVEV_W2_UB(src6, src7, src8, src9, dst0, dst1);
- dst0 = (v16u8) __msa_pckev_d((v2i64) dst1, (v2i64) dst0);
-
- ST_UB(dst0, nxt);
- nxt += 16;
- }
-}
-
-void png_read_filter_row_avg3_msa(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- size_t i;
- png_bytep src = row;
- png_bytep nxt = row;
- png_const_bytep pp = prev_row;
- size_t istop = row_info->rowbytes - 3;
- int64_t out0;
- int32_t inp0, inp1, out1;
- int16_t out2;
- v16u8 src0, src1, src2, src3, src4, src5, src6, src7, src8, src9, dst0, dst1;
- v16u8 zero = { 0 };
- v16i8 mask0 = { 0, 1, 2, 16, 17, 18, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
- v16i8 mask1 = { 0, 1, 2, 3, 4, 5, 16, 17, 18, 19, 20, 21, 0, 0, 0, 0 };
-
- inp0 = LW(pp);
- pp += 3;
- inp1 = LW(src);
- src += 3;
- src0 = (v16u8) __msa_insert_w((v4i32) zero, 0, inp0);
- src1 = (v16u8) __msa_insert_w((v4i32) zero, 0, inp1);
- src0 = (v16u8) MSA_SRLI_B(src0, 1);
- src1 += src0;
- out2 = __msa_copy_s_h((v8i16) src1, 0);
- SH(out2, nxt);
- nxt += 2;
- nxt[0] = src1[2];
- nxt++;
-
- for (i = 0; i < istop; i += 12)
- {
- src2 = LD_UB(pp);
- pp += 12;
- src6 = LD_UB(src);
- src += 12;
-
- SLDI_B2_0_UB(src2, src6, src3, src7, 3);
- SLDI_B2_0_UB(src2, src6, src4, src8, 6);
- SLDI_B2_0_UB(src2, src6, src5, src9, 9);
- src2 = __msa_ave_u_b(src2, src1);
- src6 += src2;
- src3 = __msa_ave_u_b(src3, src6);
- src7 += src3;
- src4 = __msa_ave_u_b(src4, src7);
- src8 += src4;
- src5 = __msa_ave_u_b(src5, src8);
- src9 += src5;
- src1 = src9;
- VSHF_B2_UB(src6, src7, src8, src9, mask0, mask0, dst0, dst1);
- dst0 = (v16u8) __msa_vshf_b(mask1, (v16i8) dst1, (v16i8) dst0);
- out0 = __msa_copy_s_d((v2i64) dst0, 0);
- out1 = __msa_copy_s_w((v4i32) dst0, 2);
-
- SD(out0, nxt);
- nxt += 8;
- SW(out1, nxt);
- nxt += 4;
- }
-}
-
-void png_read_filter_row_paeth4_msa(png_row_infop row_info,
- png_bytep row,
- png_const_bytep prev_row)
-{
- int32_t count, rp_end;
- png_bytep nxt;
- png_const_bytep prev_nxt;
- int32_t inp0, inp1, res0;
- v16u8 src0, src1, src2, src3, src4, src5, src6, src7, src8, src9;
- v16u8 src10, src11, src12, src13, dst0, dst1;
- v8i16 vec0, vec1, vec2;
- v16u8 zero = { 0 };
-
- nxt = row;
- prev_nxt = prev_row;
-
- inp0 = LW(nxt);
- inp1 = LW(prev_nxt);
- prev_nxt += 4;
- src0 = (v16u8) __msa_insert_w((v4i32) zero, 0, inp0);
- src1 = (v16u8) __msa_insert_w((v4i32) zero, 0, inp1);
-
- src1 += src0;
- res0 = __msa_copy_s_w((v4i32) src1, 0);
-
- SW(res0, nxt);
- nxt += 4;
-
- /* Remainder */
- rp_end = row_info->rowbytes - 4;
-
- for (count = 0; count < rp_end; count += 16)
- {
- src2 = LD_UB(prev_nxt);
- prev_nxt += 16;
- src6 = LD_UB(prev_row);
- prev_row += 16;
- src10 = LD_UB(nxt);
-
- SLDI_B3_0_UB(src2, src6, src10, src3, src7, src11, 4);
- SLDI_B3_0_UB(src2, src6, src10, src4, src8, src12, 8);
- SLDI_B3_0_UB(src2, src6, src10, src5, src9, src13, 12);
- ILVR_B2_SH(src2, src6, src1, src6, vec0, vec1);
- HSUB_UB2_SH(vec0, vec1, vec0, vec1);
- vec2 = vec0 + vec1;
- ADD_ABS_H3_SH(vec0, vec1, vec2, vec0, vec1, vec2);
- CMP_AND_SELECT(vec0, vec1, vec2, src1, src2, src6, src10);
- ILVR_B2_SH(src3, src7, src10, src7, vec0, vec1);
- HSUB_UB2_SH(vec0, vec1, vec0, vec1);
- vec2 = vec0 + vec1;
- ADD_ABS_H3_SH(vec0, vec1, vec2, vec0, vec1, vec2);
- CMP_AND_SELECT(vec0, vec1, vec2, src10, src3, src7, src11);
- ILVR_B2_SH(src4, src8, src11, src8, vec0, vec1);
- HSUB_UB2_SH(vec0, vec1, vec0, vec1);
- vec2 = vec0 + vec1;
- ADD_ABS_H3_SH(vec0, vec1, vec2, vec0, vec1, vec2);
- CMP_AND_SELECT(vec0, vec1, vec2, src11, src4, src8, src12);
- ILVR_B2_SH(src5, src9, src12, src9, vec0, vec1);
- HSUB_UB2_SH(vec0, vec1, vec0, vec1);
- vec2 = vec0 + vec1;
- ADD_ABS_H3_SH(vec0, vec1, vec2, vec0, vec1, vec2);
- CMP_AND_SELECT(vec0, vec1, vec2, src12, src5, src9, src13);
- src1 = src13;
- ILVEV_W2_UB(src10, src11, src12, src1, dst0, dst1);
- dst0 = (v16u8) __msa_pckev_d((v2i64) dst1, (v2i64) dst0);
-
- ST_UB(dst0, nxt);
- nxt += 16;
- }
-}
-
-void png_read_filter_row_paeth3_msa(png_row_infop row_info,
- png_bytep row,
- png_const_bytep prev_row)
-{
- int32_t count, rp_end;
- png_bytep nxt;
- png_const_bytep prev_nxt;
- int64_t out0;
- int32_t inp0, inp1, out1;
- int16_t out2;
- v16u8 src0, src1, src2, src3, src4, src5, src6, src7, src8, src9, dst0, dst1;
- v16u8 src10, src11, src12, src13;
- v8i16 vec0, vec1, vec2;
- v16u8 zero = { 0 };
- v16i8 mask0 = { 0, 1, 2, 16, 17, 18, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
- v16i8 mask1 = { 0, 1, 2, 3, 4, 5, 16, 17, 18, 19, 20, 21, 0, 0, 0, 0 };
-
- nxt = row;
- prev_nxt = prev_row;
-
- inp0 = LW(nxt);
- inp1 = LW(prev_nxt);
- prev_nxt += 3;
- src0 = (v16u8) __msa_insert_w((v4i32) zero, 0, inp0);
- src1 = (v16u8) __msa_insert_w((v4i32) zero, 0, inp1);
-
- src1 += src0;
- out2 = __msa_copy_s_h((v8i16) src1, 0);
-
- SH(out2, nxt);
- nxt += 2;
- nxt[0] = src1[2];
- nxt++;
-
- /* Remainder */
- rp_end = row_info->rowbytes - 3;
-
- for (count = 0; count < rp_end; count += 12)
- {
- src2 = LD_UB(prev_nxt);
- prev_nxt += 12;
- src6 = LD_UB(prev_row);
- prev_row += 12;
- src10 = LD_UB(nxt);
-
- SLDI_B3_0_UB(src2, src6, src10, src3, src7, src11, 3);
- SLDI_B3_0_UB(src2, src6, src10, src4, src8, src12, 6);
- SLDI_B3_0_UB(src2, src6, src10, src5, src9, src13, 9);
- ILVR_B2_SH(src2, src6, src1, src6, vec0, vec1);
- HSUB_UB2_SH(vec0, vec1, vec0, vec1);
- vec2 = vec0 + vec1;
- ADD_ABS_H3_SH(vec0, vec1, vec2, vec0, vec1, vec2);
- CMP_AND_SELECT(vec0, vec1, vec2, src1, src2, src6, src10);
- ILVR_B2_SH(src3, src7, src10, src7, vec0, vec1);
- HSUB_UB2_SH(vec0, vec1, vec0, vec1);
- vec2 = vec0 + vec1;
- ADD_ABS_H3_SH(vec0, vec1, vec2, vec0, vec1, vec2);
- CMP_AND_SELECT(vec0, vec1, vec2, src10, src3, src7, src11);
- ILVR_B2_SH(src4, src8, src11, src8, vec0, vec1);
- HSUB_UB2_SH(vec0, vec1, vec0, vec1);
- vec2 = vec0 + vec1;
- ADD_ABS_H3_SH(vec0, vec1, vec2, vec0, vec1, vec2);
- CMP_AND_SELECT(vec0, vec1, vec2, src11, src4, src8, src12);
- ILVR_B2_SH(src5, src9, src12, src9, vec0, vec1);
- HSUB_UB2_SH(vec0, vec1, vec0, vec1);
- vec2 = vec0 + vec1;
- ADD_ABS_H3_SH(vec0, vec1, vec2, vec0, vec1, vec2);
- CMP_AND_SELECT(vec0, vec1, vec2, src12, src5, src9, src13);
- src1 = src13;
- VSHF_B2_UB(src10, src11, src12, src13, mask0, mask0, dst0, dst1);
- dst0 = (v16u8) __msa_vshf_b(mask1, (v16i8) dst1, (v16i8) dst0);
- out0 = __msa_copy_s_d((v2i64) dst0, 0);
- out1 = __msa_copy_s_w((v4i32) dst0, 2);
-
- SD(out0, nxt);
- nxt += 8;
- SW(out1, nxt);
- nxt += 4;
- }
-}
-
-#endif /* PNG_MIPS_MSA_OPT > 0 */
-#endif /* PNG_MIPS_MSA_IMPLEMENTATION == 1 (intrinsics) */
-#endif /* READ */
diff --git a/3rdparty/libpng/libpng-1.6.37/mips/filter_msa_intrinsics.lo b/3rdparty/libpng/libpng-1.6.37/mips/filter_msa_intrinsics.lo
deleted file mode 100644
index cf59125..0000000
--- a/3rdparty/libpng/libpng-1.6.37/mips/filter_msa_intrinsics.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# mips/filter_msa_intrinsics.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/filter_msa_intrinsics.o'
-
-# Name of the non-PIC object
-non_pic_object='filter_msa_intrinsics.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/mips/filter_msa_intrinsics.o b/3rdparty/libpng/libpng-1.6.37/mips/filter_msa_intrinsics.o
deleted file mode 100644
index a3b8bb0..0000000
--- a/3rdparty/libpng/libpng-1.6.37/mips/filter_msa_intrinsics.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/mips/mips_init.c b/3rdparty/libpng/libpng-1.6.37/mips/mips_init.c
deleted file mode 100644
index 8dd283d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/mips/mips_init.c
+++ /dev/null
@@ -1,130 +0,0 @@
-
-/* mips_init.c - MSA optimised filter functions
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 2016 Glenn Randers-Pehrson
- * Written by Mandar Sahastrabuddhe, 2016.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-/* Below, after checking __linux__, various non-C90 POSIX 1003.1 functions are
- * called.
- */
-#define _POSIX_SOURCE 1
-
-#include <stdio.h>
-#include "../pngpriv.h"
-
-#ifdef PNG_READ_SUPPORTED
-
-#if PNG_MIPS_MSA_OPT > 0
-#ifdef PNG_MIPS_MSA_CHECK_SUPPORTED /* Do run-time checks */
-/* WARNING: it is strongly recommended that you do not build libpng with
- * run-time checks for CPU features if at all possible. In the case of the MIPS
- * MSA instructions there is no processor-specific way of detecting the
- * presence of the required support, therefore run-time detection is extremely
- * OS specific.
- *
- * You may set the macro PNG_MIPS_MSA_FILE to the file name of file containing
- * a fragment of C source code which defines the png_have_msa function. There
- * are a number of implementations in contrib/mips-msa, but the only one that
- * has partial support is contrib/mips-msa/linux.c - a generic Linux
- * implementation which reads /proc/cpufino.
- */
-#ifndef PNG_MIPS_MSA_FILE
-# ifdef __linux__
-# define PNG_MIPS_MSA_FILE "contrib/mips-msa/linux.c"
-# endif
-#endif
-
-#ifdef PNG_MIPS_MSA_FILE
-
-#include <signal.h> /* for sig_atomic_t */
-static int png_have_msa(png_structp png_ptr);
-#include PNG_MIPS_MSA_FILE
-
-#else /* PNG_MIPS_MSA_FILE */
-# error "PNG_MIPS_MSA_FILE undefined: no support for run-time MIPS MSA checks"
-#endif /* PNG_MIPS_MSA_FILE */
-#endif /* PNG_MIPS_MSA_CHECK_SUPPORTED */
-
-#ifndef PNG_ALIGNED_MEMORY_SUPPORTED
-# error "ALIGNED_MEMORY is required; set: -DPNG_ALIGNED_MEMORY_SUPPORTED"
-#endif
-
-void
-png_init_filter_functions_msa(png_structp pp, unsigned int bpp)
-{
- /* The switch statement is compiled in for MIPS_MSA_API, the call to
- * png_have_msa is compiled in for MIPS_MSA_CHECK. If both are defined
- * the check is only performed if the API has not set the MSA option on
- * or off explicitly. In this case the check controls what happens.
- */
-
-#ifdef PNG_MIPS_MSA_API_SUPPORTED
- switch ((pp->options >> PNG_MIPS_MSA) & 3)
- {
- case PNG_OPTION_UNSET:
- /* Allow the run-time check to execute if it has been enabled -
- * thus both API and CHECK can be turned on. If it isn't supported
- * this case will fall through to the 'default' below, which just
- * returns.
- */
-#endif /* PNG_MIPS_MSA_API_SUPPORTED */
-#ifdef PNG_MIPS_MSA_CHECK_SUPPORTED
- {
- static volatile sig_atomic_t no_msa = -1; /* not checked */
-
- if (no_msa < 0)
- no_msa = !png_have_msa(pp);
-
- if (no_msa)
- return;
- }
-#ifdef PNG_MIPS_MSA_API_SUPPORTED
- break;
-#endif
-#endif /* PNG_MIPS_MSA_CHECK_SUPPORTED */
-
-#ifdef PNG_MIPS_MSA_API_SUPPORTED
- default: /* OFF or INVALID */
- return;
-
- case PNG_OPTION_ON:
- /* Option turned on */
- break;
- }
-#endif
-
- /* IMPORTANT: any new external functions used here must be declared using
- * PNG_INTERNAL_FUNCTION in ../pngpriv.h. This is required so that the
- * 'prefix' option to configure works:
- *
- * ./configure --with-libpng-prefix=foobar_
- *
- * Verify you have got this right by running the above command, doing a build
- * and examining pngprefix.h; it must contain a #define for every external
- * function you add. (Notice that this happens automatically for the
- * initialization function.)
- */
- pp->read_filter[PNG_FILTER_VALUE_UP-1] = png_read_filter_row_up_msa;
-
- if (bpp == 3)
- {
- pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub3_msa;
- pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg3_msa;
- pp->read_filter[PNG_FILTER_VALUE_PAETH-1] = png_read_filter_row_paeth3_msa;
- }
-
- else if (bpp == 4)
- {
- pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub4_msa;
- pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg4_msa;
- pp->read_filter[PNG_FILTER_VALUE_PAETH-1] = png_read_filter_row_paeth4_msa;
- }
-}
-#endif /* PNG_MIPS_MSA_OPT > 0 */
-#endif /* READ */
diff --git a/3rdparty/libpng/libpng-1.6.37/mips/mips_init.lo b/3rdparty/libpng/libpng-1.6.37/mips/mips_init.lo
deleted file mode 100644
index bb78397..0000000
--- a/3rdparty/libpng/libpng-1.6.37/mips/mips_init.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# mips/mips_init.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/mips_init.o'
-
-# Name of the non-PIC object
-non_pic_object='mips_init.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/mips/mips_init.o b/3rdparty/libpng/libpng-1.6.37/mips/mips_init.o
deleted file mode 100644
index 616a783..0000000
--- a/3rdparty/libpng/libpng-1.6.37/mips/mips_init.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/missing b/3rdparty/libpng/libpng-1.6.37/missing
deleted file mode 100755
index 625aeb1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/missing
+++ /dev/null
@@ -1,215 +0,0 @@
-#! /bin/sh
-# Common wrapper for a few potentially missing GNU programs.
-
-scriptversion=2018-03-07.03; # UTC
-
-# Copyright (C) 1996-2018 Free Software Foundation, Inc.
-# Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <https://www.gnu.org/licenses/>.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-if test $# -eq 0; then
- echo 1>&2 "Try '$0 --help' for more information"
- exit 1
-fi
-
-case $1 in
-
- --is-lightweight)
- # Used by our autoconf macros to check whether the available missing
- # script is modern enough.
- exit 0
- ;;
-
- --run)
- # Back-compat with the calling convention used by older automake.
- shift
- ;;
-
- -h|--h|--he|--hel|--help)
- echo "\
-$0 [OPTION]... PROGRAM [ARGUMENT]...
-
-Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due
-to PROGRAM being missing or too old.
-
-Options:
- -h, --help display this help and exit
- -v, --version output version information and exit
-
-Supported PROGRAM values:
- aclocal autoconf autoheader autom4te automake makeinfo
- bison yacc flex lex help2man
-
-Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
-'g' are ignored when checking the name.
-
-Send bug reports to <bug-automake@gnu.org>."
- exit $?
- ;;
-
- -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
- echo "missing $scriptversion (GNU Automake)"
- exit $?
- ;;
-
- -*)
- echo 1>&2 "$0: unknown '$1' option"
- echo 1>&2 "Try '$0 --help' for more information"
- exit 1
- ;;
-
-esac
-
-# Run the given program, remember its exit status.
-"$@"; st=$?
-
-# If it succeeded, we are done.
-test $st -eq 0 && exit 0
-
-# Also exit now if we it failed (or wasn't found), and '--version' was
-# passed; such an option is passed most likely to detect whether the
-# program is present and works.
-case $2 in --version|--help) exit $st;; esac
-
-# Exit code 63 means version mismatch. This often happens when the user
-# tries to use an ancient version of a tool on a file that requires a
-# minimum version.
-if test $st -eq 63; then
- msg="probably too old"
-elif test $st -eq 127; then
- # Program was missing.
- msg="missing on your system"
-else
- # Program was found and executed, but failed. Give up.
- exit $st
-fi
-
-perl_URL=https://www.perl.org/
-flex_URL=https://github.com/westes/flex
-gnu_software_URL=https://www.gnu.org/software
-
-program_details ()
-{
- case $1 in
- aclocal|automake)
- echo "The '$1' program is part of the GNU Automake package:"
- echo "<$gnu_software_URL/automake>"
- echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:"
- echo "<$gnu_software_URL/autoconf>"
- echo "<$gnu_software_URL/m4/>"
- echo "<$perl_URL>"
- ;;
- autoconf|autom4te|autoheader)
- echo "The '$1' program is part of the GNU Autoconf package:"
- echo "<$gnu_software_URL/autoconf/>"
- echo "It also requires GNU m4 and Perl in order to run:"
- echo "<$gnu_software_URL/m4/>"
- echo "<$perl_URL>"
- ;;
- esac
-}
-
-give_advice ()
-{
- # Normalize program name to check for.
- normalized_program=`echo "$1" | sed '
- s/^gnu-//; t
- s/^gnu//; t
- s/^g//; t'`
-
- printf '%s\n' "'$1' is $msg."
-
- configure_deps="'configure.ac' or m4 files included by 'configure.ac'"
- case $normalized_program in
- autoconf*)
- echo "You should only need it if you modified 'configure.ac',"
- echo "or m4 files included by it."
- program_details 'autoconf'
- ;;
- autoheader*)
- echo "You should only need it if you modified 'acconfig.h' or"
- echo "$configure_deps."
- program_details 'autoheader'
- ;;
- automake*)
- echo "You should only need it if you modified 'Makefile.am' or"
- echo "$configure_deps."
- program_details 'automake'
- ;;
- aclocal*)
- echo "You should only need it if you modified 'acinclude.m4' or"
- echo "$configure_deps."
- program_details 'aclocal'
- ;;
- autom4te*)
- echo "You might have modified some maintainer files that require"
- echo "the 'autom4te' program to be rebuilt."
- program_details 'autom4te'
- ;;
- bison*|yacc*)
- echo "You should only need it if you modified a '.y' file."
- echo "You may want to install the GNU Bison package:"
- echo "<$gnu_software_URL/bison/>"
- ;;
- lex*|flex*)
- echo "You should only need it if you modified a '.l' file."
- echo "You may want to install the Fast Lexical Analyzer package:"
- echo "<$flex_URL>"
- ;;
- help2man*)
- echo "You should only need it if you modified a dependency" \
- "of a man page."
- echo "You may want to install the GNU Help2man package:"
- echo "<$gnu_software_URL/help2man/>"
- ;;
- makeinfo*)
- echo "You should only need it if you modified a '.texi' file, or"
- echo "any other file indirectly affecting the aspect of the manual."
- echo "You might want to install the Texinfo package:"
- echo "<$gnu_software_URL/texinfo/>"
- echo "The spurious makeinfo call might also be the consequence of"
- echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might"
- echo "want to install GNU make:"
- echo "<$gnu_software_URL/make/>"
- ;;
- *)
- echo "You might have modified some files without having the proper"
- echo "tools for further handling them. Check the 'README' file, it"
- echo "often tells you about the needed prerequisites for installing"
- echo "this package. You may also peek at any GNU archive site, in"
- echo "case some other package contains this missing '$1' program."
- ;;
- esac
-}
-
-give_advice "$1" | sed -e '1s/^/WARNING: /' \
- -e '2,$s/^/ /' >&2
-
-# Propagate the correct exit status (expected to be 127 for a program
-# not found, 63 for a program that failed due to version mismatch).
-exit $st
-
-# Local variables:
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
-# time-stamp-end: "; # UTC"
-# End:
diff --git a/3rdparty/libpng/libpng-1.6.37/png-fix-itxt b/3rdparty/libpng/libpng-1.6.37/png-fix-itxt
deleted file mode 100755
index 9c0333a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/png-fix-itxt
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/png.5 b/3rdparty/libpng/libpng-1.6.37/png.5
deleted file mode 100644
index c2da95c..0000000
--- a/3rdparty/libpng/libpng-1.6.37/png.5
+++ /dev/null
@@ -1,84 +0,0 @@
-.TH PNG 5 "April 14, 2019"
-.SH NAME
-png \- Portable Network Graphics (PNG) format
-
-.SH DESCRIPTION
-PNG (Portable Network Graphics) is an extensible file format for the
-lossless, portable, well-compressed storage of raster images. PNG
-provides a patent-free replacement for GIF, and can also replace many
-common uses of TIFF. Indexed-color, grayscale, and truecolor images are
-supported, plus an optional alpha channel. Sample depths range from
-1 to 16 bits.
-.br
-PNG is designed to work well in online viewing applications, such
-as the World Wide Web, so it is fully streamable with a progressive
-display option. PNG is robust, providing both full file integrity
-checking and fast, simple detection of common transmission errors.
-Also, PNG can store gamma and chromaticity data for improved color
-matching on heterogeneous platforms.
-
-.SH "SEE ALSO"
-.BR "libpng"(3), " libpngpf"(3), " zlib"(3), " deflate"(5), " " and " zlib"(5)
-.LP
-PNG Specification (Second Edition), November 2003:
-.IP
-.br
-https://www.w3.org/TR/2003/REC-PNG-20031110/
-.LP
-PNG 1.2 Specification, July 1999:
-.IP
-.br
-https://png-mng.sourceforge.io/pub/png/spec/1.2/
-.LP
-PNG 1.0 Specification, October 1996:
-.IP
-.br
-RFC 2083
-.br
-https://www.ietf.org/rfc/rfc2083.txt
-.IP
-.br
-or W3C Recommendation
-.br
-https://www.w3.org/TR/REC-png-961001
-
-.SH AUTHORS
-This man page: Cosmin Truta, Glenn Randers-Pehrson
-.LP
-Portable Network Graphics (PNG) Specification (Second Edition)
-Information technology - Computer graphics and image processing -
-Portable Network Graphics (PNG): Functional specification.
-ISO/IEC 15948:2003 (E) (November 10, 2003): David Duce and others.
-.LP
-Portable Network Graphics (PNG) Specification Version 1.2 (July 8, 1999):
-Glenn Randers-Pehrson and others (png-list).
-.LP
-Portable Network Graphics (PNG) Specification Version 1.0 (October 1, 1996):
-Thomas Boutell and others (png-list).
-
-.SH COPYRIGHT
-.LP
-This man page is
-.br
-Copyright (c) 2018-2019 Cosmin Truta.
-.br
-Copyright (c) 1998-2006 Glenn Randers-Pehrson.
-.br
-See png.h for conditions of use and distribution.
-.LP
-The PNG Specification (Second Edition) is
-.br
-Copyright (c) 2003 W3C. (MIT, ERCIM, Keio), All Rights Reserved.
-.LP
-The PNG-1.2 Specification is
-.br
-Copyright (c) 1999 Glenn Randers-Pehrson.
-.br
-See the specification for conditions of use and distribution.
-.LP
-The PNG-1.0 Specification is
-.br
-Copyright (c) 1996 Massachusetts Institute of Technology.
-.br
-See the specification for conditions of use and distribution.
-.\" end of man page
diff --git a/3rdparty/libpng/libpng-1.6.37/png.c b/3rdparty/libpng/libpng-1.6.37/png.c
deleted file mode 100644
index 757c755..0000000
--- a/3rdparty/libpng/libpng-1.6.37/png.c
+++ /dev/null
@@ -1,4607 +0,0 @@
-
-/* png.c - location for general purpose libpng functions
- *
- * Copyright (c) 2018-2019 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#include "pngpriv.h"
-
-/* Generate a compiler error if there is an old png.h in the search path. */
-typedef png_libpng_version_1_6_37 Your_png_h_is_not_version_1_6_37;
-
-#ifdef __GNUC__
-/* The version tests may need to be added to, but the problem warning has
- * consistently been fixed in GCC versions which obtain wide-spread release.
- * The problem is that many versions of GCC rearrange comparison expressions in
- * the optimizer in such a way that the results of the comparison will change
- * if signed integer overflow occurs. Such comparisons are not permitted in
- * ANSI C90, however GCC isn't clever enough to work out that that do not occur
- * below in png_ascii_from_fp and png_muldiv, so it produces a warning with
- * -Wextra. Unfortunately this is highly dependent on the optimizer and the
- * machine architecture so the warning comes and goes unpredictably and is
- * impossible to "fix", even were that a good idea.
- */
-#if __GNUC__ == 7 && __GNUC_MINOR__ == 1
-#define GCC_STRICT_OVERFLOW 1
-#endif /* GNU 7.1.x */
-#endif /* GNU */
-#ifndef GCC_STRICT_OVERFLOW
-#define GCC_STRICT_OVERFLOW 0
-#endif
-
-/* Tells libpng that we have already handled the first "num_bytes" bytes
- * of the PNG file signature. If the PNG data is embedded into another
- * stream we can set num_bytes = 8 so that libpng will not attempt to read
- * or write any of the magic bytes before it starts on the IHDR.
- */
-
-#ifdef PNG_READ_SUPPORTED
-void PNGAPI
-png_set_sig_bytes(png_structrp png_ptr, int num_bytes)
-{
- unsigned int nb = (unsigned int)num_bytes;
-
- png_debug(1, "in png_set_sig_bytes");
-
- if (png_ptr == NULL)
- return;
-
- if (num_bytes < 0)
- nb = 0;
-
- if (nb > 8)
- png_error(png_ptr, "Too many bytes for PNG signature");
-
- png_ptr->sig_bytes = (png_byte)nb;
-}
-
-/* Checks whether the supplied bytes match the PNG signature. We allow
- * checking less than the full 8-byte signature so that those apps that
- * already read the first few bytes of a file to determine the file type
- * can simply check the remaining bytes for extra assurance. Returns
- * an integer less than, equal to, or greater than zero if sig is found,
- * respectively, to be less than, to match, or be greater than the correct
- * PNG signature (this is the same behavior as strcmp, memcmp, etc).
- */
-int PNGAPI
-png_sig_cmp(png_const_bytep sig, size_t start, size_t num_to_check)
-{
- png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10};
-
- if (num_to_check > 8)
- num_to_check = 8;
-
- else if (num_to_check < 1)
- return (-1);
-
- if (start > 7)
- return (-1);
-
- if (start + num_to_check > 8)
- num_to_check = 8 - start;
-
- return ((int)(memcmp(&sig[start], &png_signature[start], num_to_check)));
-}
-
-#endif /* READ */
-
-#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
-/* Function to allocate memory for zlib */
-PNG_FUNCTION(voidpf /* PRIVATE */,
-png_zalloc,(voidpf png_ptr, uInt items, uInt size),PNG_ALLOCATED)
-{
- png_alloc_size_t num_bytes = size;
-
- if (png_ptr == NULL)
- return NULL;
-
- if (items >= (~(png_alloc_size_t)0)/size)
- {
- png_warning (png_voidcast(png_structrp, png_ptr),
- "Potential overflow in png_zalloc()");
- return NULL;
- }
-
- num_bytes *= items;
- return png_malloc_warn(png_voidcast(png_structrp, png_ptr), num_bytes);
-}
-
-/* Function to free memory for zlib */
-void /* PRIVATE */
-png_zfree(voidpf png_ptr, voidpf ptr)
-{
- png_free(png_voidcast(png_const_structrp,png_ptr), ptr);
-}
-
-/* Reset the CRC variable to 32 bits of 1's. Care must be taken
- * in case CRC is > 32 bits to leave the top bits 0.
- */
-void /* PRIVATE */
-png_reset_crc(png_structrp png_ptr)
-{
- /* The cast is safe because the crc is a 32-bit value. */
- png_ptr->crc = (png_uint_32)crc32(0, Z_NULL, 0);
-}
-
-/* Calculate the CRC over a section of data. We can only pass as
- * much data to this routine as the largest single buffer size. We
- * also check that this data will actually be used before going to the
- * trouble of calculating it.
- */
-void /* PRIVATE */
-png_calculate_crc(png_structrp png_ptr, png_const_bytep ptr, size_t length)
-{
- int need_crc = 1;
-
- if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name) != 0)
- {
- if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) ==
- (PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN))
- need_crc = 0;
- }
-
- else /* critical */
- {
- if ((png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE) != 0)
- need_crc = 0;
- }
-
- /* 'uLong' is defined in zlib.h as unsigned long; this means that on some
- * systems it is a 64-bit value. crc32, however, returns 32 bits so the
- * following cast is safe. 'uInt' may be no more than 16 bits, so it is
- * necessary to perform a loop here.
- */
- if (need_crc != 0 && length > 0)
- {
- uLong crc = png_ptr->crc; /* Should never issue a warning */
-
- do
- {
- uInt safe_length = (uInt)length;
-#ifndef __COVERITY__
- if (safe_length == 0)
- safe_length = (uInt)-1; /* evil, but safe */
-#endif
-
- crc = crc32(crc, ptr, safe_length);
-
- /* The following should never issue compiler warnings; if they do the
- * target system has characteristics that will probably violate other
- * assumptions within the libpng code.
- */
- ptr += safe_length;
- length -= safe_length;
- }
- while (length > 0);
-
- /* And the following is always safe because the crc is only 32 bits. */
- png_ptr->crc = (png_uint_32)crc;
- }
-}
-
-/* Check a user supplied version number, called from both read and write
- * functions that create a png_struct.
- */
-int
-png_user_version_check(png_structrp png_ptr, png_const_charp user_png_ver)
-{
- /* Libpng versions 1.0.0 and later are binary compatible if the version
- * string matches through the second '.'; we must recompile any
- * applications that use any older library version.
- */
-
- if (user_png_ver != NULL)
- {
- int i = -1;
- int found_dots = 0;
-
- do
- {
- i++;
- if (user_png_ver[i] != PNG_LIBPNG_VER_STRING[i])
- png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH;
- if (user_png_ver[i] == '.')
- found_dots++;
- } while (found_dots < 2 && user_png_ver[i] != 0 &&
- PNG_LIBPNG_VER_STRING[i] != 0);
- }
-
- else
- png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH;
-
- if ((png_ptr->flags & PNG_FLAG_LIBRARY_MISMATCH) != 0)
- {
-#ifdef PNG_WARNINGS_SUPPORTED
- size_t pos = 0;
- char m[128];
-
- pos = png_safecat(m, (sizeof m), pos,
- "Application built with libpng-");
- pos = png_safecat(m, (sizeof m), pos, user_png_ver);
- pos = png_safecat(m, (sizeof m), pos, " but running with ");
- pos = png_safecat(m, (sizeof m), pos, PNG_LIBPNG_VER_STRING);
- PNG_UNUSED(pos)
-
- png_warning(png_ptr, m);
-#endif
-
-#ifdef PNG_ERROR_NUMBERS_SUPPORTED
- png_ptr->flags = 0;
-#endif
-
- return 0;
- }
-
- /* Success return. */
- return 1;
-}
-
-/* Generic function to create a png_struct for either read or write - this
- * contains the common initialization.
- */
-PNG_FUNCTION(png_structp /* PRIVATE */,
-png_create_png_struct,(png_const_charp user_png_ver, png_voidp error_ptr,
- png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr,
- png_malloc_ptr malloc_fn, png_free_ptr free_fn),PNG_ALLOCATED)
-{
- png_struct create_struct;
-# ifdef PNG_SETJMP_SUPPORTED
- jmp_buf create_jmp_buf;
-# endif
-
- /* This temporary stack-allocated structure is used to provide a place to
- * build enough context to allow the user provided memory allocator (if any)
- * to be called.
- */
- memset(&create_struct, 0, (sizeof create_struct));
-
- /* Added at libpng-1.2.6 */
-# ifdef PNG_USER_LIMITS_SUPPORTED
- create_struct.user_width_max = PNG_USER_WIDTH_MAX;
- create_struct.user_height_max = PNG_USER_HEIGHT_MAX;
-
-# ifdef PNG_USER_CHUNK_CACHE_MAX
- /* Added at libpng-1.2.43 and 1.4.0 */
- create_struct.user_chunk_cache_max = PNG_USER_CHUNK_CACHE_MAX;
-# endif
-
-# ifdef PNG_USER_CHUNK_MALLOC_MAX
- /* Added at libpng-1.2.43 and 1.4.1, required only for read but exists
- * in png_struct regardless.
- */
- create_struct.user_chunk_malloc_max = PNG_USER_CHUNK_MALLOC_MAX;
-# endif
-# endif
-
- /* The following two API calls simply set fields in png_struct, so it is safe
- * to do them now even though error handling is not yet set up.
- */
-# ifdef PNG_USER_MEM_SUPPORTED
- png_set_mem_fn(&create_struct, mem_ptr, malloc_fn, free_fn);
-# else
- PNG_UNUSED(mem_ptr)
- PNG_UNUSED(malloc_fn)
- PNG_UNUSED(free_fn)
-# endif
-
- /* (*error_fn) can return control to the caller after the error_ptr is set,
- * this will result in a memory leak unless the error_fn does something
- * extremely sophisticated. The design lacks merit but is implicit in the
- * API.
- */
- png_set_error_fn(&create_struct, error_ptr, error_fn, warn_fn);
-
-# ifdef PNG_SETJMP_SUPPORTED
- if (!setjmp(create_jmp_buf))
-# endif
- {
-# ifdef PNG_SETJMP_SUPPORTED
- /* Temporarily fake out the longjmp information until we have
- * successfully completed this function. This only works if we have
- * setjmp() support compiled in, but it is safe - this stuff should
- * never happen.
- */
- create_struct.jmp_buf_ptr = &create_jmp_buf;
- create_struct.jmp_buf_size = 0; /*stack allocation*/
- create_struct.longjmp_fn = longjmp;
-# endif
- /* Call the general version checker (shared with read and write code):
- */
- if (png_user_version_check(&create_struct, user_png_ver) != 0)
- {
- png_structrp png_ptr = png_voidcast(png_structrp,
- png_malloc_warn(&create_struct, (sizeof *png_ptr)));
-
- if (png_ptr != NULL)
- {
- /* png_ptr->zstream holds a back-pointer to the png_struct, so
- * this can only be done now:
- */
- create_struct.zstream.zalloc = png_zalloc;
- create_struct.zstream.zfree = png_zfree;
- create_struct.zstream.opaque = png_ptr;
-
-# ifdef PNG_SETJMP_SUPPORTED
- /* Eliminate the local error handling: */
- create_struct.jmp_buf_ptr = NULL;
- create_struct.jmp_buf_size = 0;
- create_struct.longjmp_fn = 0;
-# endif
-
- *png_ptr = create_struct;
-
- /* This is the successful return point */
- return png_ptr;
- }
- }
- }
-
- /* A longjmp because of a bug in the application storage allocator or a
- * simple failure to allocate the png_struct.
- */
- return NULL;
-}
-
-/* Allocate the memory for an info_struct for the application. */
-PNG_FUNCTION(png_infop,PNGAPI
-png_create_info_struct,(png_const_structrp png_ptr),PNG_ALLOCATED)
-{
- png_inforp info_ptr;
-
- png_debug(1, "in png_create_info_struct");
-
- if (png_ptr == NULL)
- return NULL;
-
- /* Use the internal API that does not (or at least should not) error out, so
- * that this call always returns ok. The application typically sets up the
- * error handling *after* creating the info_struct because this is the way it
- * has always been done in 'example.c'.
- */
- info_ptr = png_voidcast(png_inforp, png_malloc_base(png_ptr,
- (sizeof *info_ptr)));
-
- if (info_ptr != NULL)
- memset(info_ptr, 0, (sizeof *info_ptr));
-
- return info_ptr;
-}
-
-/* This function frees the memory associated with a single info struct.
- * Normally, one would use either png_destroy_read_struct() or
- * png_destroy_write_struct() to free an info struct, but this may be
- * useful for some applications. From libpng 1.6.0 this function is also used
- * internally to implement the png_info release part of the 'struct' destroy
- * APIs. This ensures that all possible approaches free the same data (all of
- * it).
- */
-void PNGAPI
-png_destroy_info_struct(png_const_structrp png_ptr, png_infopp info_ptr_ptr)
-{
- png_inforp info_ptr = NULL;
-
- png_debug(1, "in png_destroy_info_struct");
-
- if (png_ptr == NULL)
- return;
-
- if (info_ptr_ptr != NULL)
- info_ptr = *info_ptr_ptr;
-
- if (info_ptr != NULL)
- {
- /* Do this first in case of an error below; if the app implements its own
- * memory management this can lead to png_free calling png_error, which
- * will abort this routine and return control to the app error handler.
- * An infinite loop may result if it then tries to free the same info
- * ptr.
- */
- *info_ptr_ptr = NULL;
-
- png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1);
- memset(info_ptr, 0, (sizeof *info_ptr));
- png_free(png_ptr, info_ptr);
- }
-}
-
-/* Initialize the info structure. This is now an internal function (0.89)
- * and applications using it are urged to use png_create_info_struct()
- * instead. Use deprecated in 1.6.0, internal use removed (used internally it
- * is just a memset).
- *
- * NOTE: it is almost inconceivable that this API is used because it bypasses
- * the user-memory mechanism and the user error handling/warning mechanisms in
- * those cases where it does anything other than a memset.
- */
-PNG_FUNCTION(void,PNGAPI
-png_info_init_3,(png_infopp ptr_ptr, size_t png_info_struct_size),
- PNG_DEPRECATED)
-{
- png_inforp info_ptr = *ptr_ptr;
-
- png_debug(1, "in png_info_init_3");
-
- if (info_ptr == NULL)
- return;
-
- if ((sizeof (png_info)) > png_info_struct_size)
- {
- *ptr_ptr = NULL;
- /* The following line is why this API should not be used: */
- free(info_ptr);
- info_ptr = png_voidcast(png_inforp, png_malloc_base(NULL,
- (sizeof *info_ptr)));
- if (info_ptr == NULL)
- return;
- *ptr_ptr = info_ptr;
- }
-
- /* Set everything to 0 */
- memset(info_ptr, 0, (sizeof *info_ptr));
-}
-
-/* The following API is not called internally */
-void PNGAPI
-png_data_freer(png_const_structrp png_ptr, png_inforp info_ptr,
- int freer, png_uint_32 mask)
-{
- png_debug(1, "in png_data_freer");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- if (freer == PNG_DESTROY_WILL_FREE_DATA)
- info_ptr->free_me |= mask;
-
- else if (freer == PNG_USER_WILL_FREE_DATA)
- info_ptr->free_me &= ~mask;
-
- else
- png_error(png_ptr, "Unknown freer parameter in png_data_freer");
-}
-
-void PNGAPI
-png_free_data(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_32 mask,
- int num)
-{
- png_debug(1, "in png_free_data");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
-#ifdef PNG_TEXT_SUPPORTED
- /* Free text item num or (if num == -1) all text items */
- if (info_ptr->text != NULL &&
- ((mask & PNG_FREE_TEXT) & info_ptr->free_me) != 0)
- {
- if (num != -1)
- {
- png_free(png_ptr, info_ptr->text[num].key);
- info_ptr->text[num].key = NULL;
- }
-
- else
- {
- int i;
-
- for (i = 0; i < info_ptr->num_text; i++)
- png_free(png_ptr, info_ptr->text[i].key);
-
- png_free(png_ptr, info_ptr->text);
- info_ptr->text = NULL;
- info_ptr->num_text = 0;
- info_ptr->max_text = 0;
- }
- }
-#endif
-
-#ifdef PNG_tRNS_SUPPORTED
- /* Free any tRNS entry */
- if (((mask & PNG_FREE_TRNS) & info_ptr->free_me) != 0)
- {
- info_ptr->valid &= ~PNG_INFO_tRNS;
- png_free(png_ptr, info_ptr->trans_alpha);
- info_ptr->trans_alpha = NULL;
- info_ptr->num_trans = 0;
- }
-#endif
-
-#ifdef PNG_sCAL_SUPPORTED
- /* Free any sCAL entry */
- if (((mask & PNG_FREE_SCAL) & info_ptr->free_me) != 0)
- {
- png_free(png_ptr, info_ptr->scal_s_width);
- png_free(png_ptr, info_ptr->scal_s_height);
- info_ptr->scal_s_width = NULL;
- info_ptr->scal_s_height = NULL;
- info_ptr->valid &= ~PNG_INFO_sCAL;
- }
-#endif
-
-#ifdef PNG_pCAL_SUPPORTED
- /* Free any pCAL entry */
- if (((mask & PNG_FREE_PCAL) & info_ptr->free_me) != 0)
- {
- png_free(png_ptr, info_ptr->pcal_purpose);
- png_free(png_ptr, info_ptr->pcal_units);
- info_ptr->pcal_purpose = NULL;
- info_ptr->pcal_units = NULL;
-
- if (info_ptr->pcal_params != NULL)
- {
- int i;
-
- for (i = 0; i < info_ptr->pcal_nparams; i++)
- png_free(png_ptr, info_ptr->pcal_params[i]);
-
- png_free(png_ptr, info_ptr->pcal_params);
- info_ptr->pcal_params = NULL;
- }
- info_ptr->valid &= ~PNG_INFO_pCAL;
- }
-#endif
-
-#ifdef PNG_iCCP_SUPPORTED
- /* Free any profile entry */
- if (((mask & PNG_FREE_ICCP) & info_ptr->free_me) != 0)
- {
- png_free(png_ptr, info_ptr->iccp_name);
- png_free(png_ptr, info_ptr->iccp_profile);
- info_ptr->iccp_name = NULL;
- info_ptr->iccp_profile = NULL;
- info_ptr->valid &= ~PNG_INFO_iCCP;
- }
-#endif
-
-#ifdef PNG_sPLT_SUPPORTED
- /* Free a given sPLT entry, or (if num == -1) all sPLT entries */
- if (info_ptr->splt_palettes != NULL &&
- ((mask & PNG_FREE_SPLT) & info_ptr->free_me) != 0)
- {
- if (num != -1)
- {
- png_free(png_ptr, info_ptr->splt_palettes[num].name);
- png_free(png_ptr, info_ptr->splt_palettes[num].entries);
- info_ptr->splt_palettes[num].name = NULL;
- info_ptr->splt_palettes[num].entries = NULL;
- }
-
- else
- {
- int i;
-
- for (i = 0; i < info_ptr->splt_palettes_num; i++)
- {
- png_free(png_ptr, info_ptr->splt_palettes[i].name);
- png_free(png_ptr, info_ptr->splt_palettes[i].entries);
- }
-
- png_free(png_ptr, info_ptr->splt_palettes);
- info_ptr->splt_palettes = NULL;
- info_ptr->splt_palettes_num = 0;
- info_ptr->valid &= ~PNG_INFO_sPLT;
- }
- }
-#endif
-
-#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
- if (info_ptr->unknown_chunks != NULL &&
- ((mask & PNG_FREE_UNKN) & info_ptr->free_me) != 0)
- {
- if (num != -1)
- {
- png_free(png_ptr, info_ptr->unknown_chunks[num].data);
- info_ptr->unknown_chunks[num].data = NULL;
- }
-
- else
- {
- int i;
-
- for (i = 0; i < info_ptr->unknown_chunks_num; i++)
- png_free(png_ptr, info_ptr->unknown_chunks[i].data);
-
- png_free(png_ptr, info_ptr->unknown_chunks);
- info_ptr->unknown_chunks = NULL;
- info_ptr->unknown_chunks_num = 0;
- }
- }
-#endif
-
-#ifdef PNG_eXIf_SUPPORTED
- /* Free any eXIf entry */
- if (((mask & PNG_FREE_EXIF) & info_ptr->free_me) != 0)
- {
-# ifdef PNG_READ_eXIf_SUPPORTED
- if (info_ptr->eXIf_buf)
- {
- png_free(png_ptr, info_ptr->eXIf_buf);
- info_ptr->eXIf_buf = NULL;
- }
-# endif
- if (info_ptr->exif)
- {
- png_free(png_ptr, info_ptr->exif);
- info_ptr->exif = NULL;
- }
- info_ptr->valid &= ~PNG_INFO_eXIf;
- }
-#endif
-
-#ifdef PNG_hIST_SUPPORTED
- /* Free any hIST entry */
- if (((mask & PNG_FREE_HIST) & info_ptr->free_me) != 0)
- {
- png_free(png_ptr, info_ptr->hist);
- info_ptr->hist = NULL;
- info_ptr->valid &= ~PNG_INFO_hIST;
- }
-#endif
-
- /* Free any PLTE entry that was internally allocated */
- if (((mask & PNG_FREE_PLTE) & info_ptr->free_me) != 0)
- {
- png_free(png_ptr, info_ptr->palette);
- info_ptr->palette = NULL;
- info_ptr->valid &= ~PNG_INFO_PLTE;
- info_ptr->num_palette = 0;
- }
-
-#ifdef PNG_INFO_IMAGE_SUPPORTED
- /* Free any image bits attached to the info structure */
- if (((mask & PNG_FREE_ROWS) & info_ptr->free_me) != 0)
- {
- if (info_ptr->row_pointers != NULL)
- {
- png_uint_32 row;
- for (row = 0; row < info_ptr->height; row++)
- png_free(png_ptr, info_ptr->row_pointers[row]);
-
- png_free(png_ptr, info_ptr->row_pointers);
- info_ptr->row_pointers = NULL;
- }
- info_ptr->valid &= ~PNG_INFO_IDAT;
- }
-#endif
-
- if (num != -1)
- mask &= ~PNG_FREE_MUL;
-
- info_ptr->free_me &= ~mask;
-}
-#endif /* READ || WRITE */
-
-/* This function returns a pointer to the io_ptr associated with the user
- * functions. The application should free any memory associated with this
- * pointer before png_write_destroy() or png_read_destroy() are called.
- */
-png_voidp PNGAPI
-png_get_io_ptr(png_const_structrp png_ptr)
-{
- if (png_ptr == NULL)
- return (NULL);
-
- return (png_ptr->io_ptr);
-}
-
-#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
-# ifdef PNG_STDIO_SUPPORTED
-/* Initialize the default input/output functions for the PNG file. If you
- * use your own read or write routines, you can call either png_set_read_fn()
- * or png_set_write_fn() instead of png_init_io(). If you have defined
- * PNG_NO_STDIO or otherwise disabled PNG_STDIO_SUPPORTED, you must use a
- * function of your own because "FILE *" isn't necessarily available.
- */
-void PNGAPI
-png_init_io(png_structrp png_ptr, png_FILE_p fp)
-{
- png_debug(1, "in png_init_io");
-
- if (png_ptr == NULL)
- return;
-
- png_ptr->io_ptr = (png_voidp)fp;
-}
-# endif
-
-# ifdef PNG_SAVE_INT_32_SUPPORTED
-/* PNG signed integers are saved in 32-bit 2's complement format. ANSI C-90
- * defines a cast of a signed integer to an unsigned integer either to preserve
- * the value, if it is positive, or to calculate:
- *
- * (UNSIGNED_MAX+1) + integer
- *
- * Where UNSIGNED_MAX is the appropriate maximum unsigned value, so when the
- * negative integral value is added the result will be an unsigned value
- * correspnding to the 2's complement representation.
- */
-void PNGAPI
-png_save_int_32(png_bytep buf, png_int_32 i)
-{
- png_save_uint_32(buf, (png_uint_32)i);
-}
-# endif
-
-# ifdef PNG_TIME_RFC1123_SUPPORTED
-/* Convert the supplied time into an RFC 1123 string suitable for use in
- * a "Creation Time" or other text-based time string.
- */
-int PNGAPI
-png_convert_to_rfc1123_buffer(char out[29], png_const_timep ptime)
-{
- static const char short_months[12][4] =
- {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
- "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
-
- if (out == NULL)
- return 0;
-
- if (ptime->year > 9999 /* RFC1123 limitation */ ||
- ptime->month == 0 || ptime->month > 12 ||
- ptime->day == 0 || ptime->day > 31 ||
- ptime->hour > 23 || ptime->minute > 59 ||
- ptime->second > 60)
- return 0;
-
- {
- size_t pos = 0;
- char number_buf[5]; /* enough for a four-digit year */
-
-# define APPEND_STRING(string) pos = png_safecat(out, 29, pos, (string))
-# define APPEND_NUMBER(format, value)\
- APPEND_STRING(PNG_FORMAT_NUMBER(number_buf, format, (value)))
-# define APPEND(ch) if (pos < 28) out[pos++] = (ch)
-
- APPEND_NUMBER(PNG_NUMBER_FORMAT_u, (unsigned)ptime->day);
- APPEND(' ');
- APPEND_STRING(short_months[(ptime->month - 1)]);
- APPEND(' ');
- APPEND_NUMBER(PNG_NUMBER_FORMAT_u, ptime->year);
- APPEND(' ');
- APPEND_NUMBER(PNG_NUMBER_FORMAT_02u, (unsigned)ptime->hour);
- APPEND(':');
- APPEND_NUMBER(PNG_NUMBER_FORMAT_02u, (unsigned)ptime->minute);
- APPEND(':');
- APPEND_NUMBER(PNG_NUMBER_FORMAT_02u, (unsigned)ptime->second);
- APPEND_STRING(" +0000"); /* This reliably terminates the buffer */
- PNG_UNUSED (pos)
-
-# undef APPEND
-# undef APPEND_NUMBER
-# undef APPEND_STRING
- }
-
- return 1;
-}
-
-# if PNG_LIBPNG_VER < 10700
-/* To do: remove the following from libpng-1.7 */
-/* Original API that uses a private buffer in png_struct.
- * Deprecated because it causes png_struct to carry a spurious temporary
- * buffer (png_struct::time_buffer), better to have the caller pass this in.
- */
-png_const_charp PNGAPI
-png_convert_to_rfc1123(png_structrp png_ptr, png_const_timep ptime)
-{
- if (png_ptr != NULL)
- {
- /* The only failure above if png_ptr != NULL is from an invalid ptime */
- if (png_convert_to_rfc1123_buffer(png_ptr->time_buffer, ptime) == 0)
- png_warning(png_ptr, "Ignoring invalid time value");
-
- else
- return png_ptr->time_buffer;
- }
-
- return NULL;
-}
-# endif /* LIBPNG_VER < 10700 */
-# endif /* TIME_RFC1123 */
-
-#endif /* READ || WRITE */
-
-png_const_charp PNGAPI
-png_get_copyright(png_const_structrp png_ptr)
-{
- PNG_UNUSED(png_ptr) /* Silence compiler warning about unused png_ptr */
-#ifdef PNG_STRING_COPYRIGHT
- return PNG_STRING_COPYRIGHT
-#else
- return PNG_STRING_NEWLINE \
- "libpng version 1.6.37" PNG_STRING_NEWLINE \
- "Copyright (c) 2018-2019 Cosmin Truta" PNG_STRING_NEWLINE \
- "Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson" \
- PNG_STRING_NEWLINE \
- "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
- "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
- PNG_STRING_NEWLINE;
-#endif
-}
-
-/* The following return the library version as a short string in the
- * format 1.0.0 through 99.99.99zz. To get the version of *.h files
- * used with your application, print out PNG_LIBPNG_VER_STRING, which
- * is defined in png.h.
- * Note: now there is no difference between png_get_libpng_ver() and
- * png_get_header_ver(). Due to the version_nn_nn_nn typedef guard,
- * it is guaranteed that png.c uses the correct version of png.h.
- */
-png_const_charp PNGAPI
-png_get_libpng_ver(png_const_structrp png_ptr)
-{
- /* Version of *.c files used when building libpng */
- return png_get_header_ver(png_ptr);
-}
-
-png_const_charp PNGAPI
-png_get_header_ver(png_const_structrp png_ptr)
-{
- /* Version of *.h files used when building libpng */
- PNG_UNUSED(png_ptr) /* Silence compiler warning about unused png_ptr */
- return PNG_LIBPNG_VER_STRING;
-}
-
-png_const_charp PNGAPI
-png_get_header_version(png_const_structrp png_ptr)
-{
- /* Returns longer string containing both version and date */
- PNG_UNUSED(png_ptr) /* Silence compiler warning about unused png_ptr */
-#ifdef __STDC__
- return PNG_HEADER_VERSION_STRING
-# ifndef PNG_READ_SUPPORTED
- " (NO READ SUPPORT)"
-# endif
- PNG_STRING_NEWLINE;
-#else
- return PNG_HEADER_VERSION_STRING;
-#endif
-}
-
-#ifdef PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED
-/* NOTE: this routine is not used internally! */
-/* Build a grayscale palette. Palette is assumed to be 1 << bit_depth
- * large of png_color. This lets grayscale images be treated as
- * paletted. Most useful for gamma correction and simplification
- * of code. This API is not used internally.
- */
-void PNGAPI
-png_build_grayscale_palette(int bit_depth, png_colorp palette)
-{
- int num_palette;
- int color_inc;
- int i;
- int v;
-
- png_debug(1, "in png_do_build_grayscale_palette");
-
- if (palette == NULL)
- return;
-
- switch (bit_depth)
- {
- case 1:
- num_palette = 2;
- color_inc = 0xff;
- break;
-
- case 2:
- num_palette = 4;
- color_inc = 0x55;
- break;
-
- case 4:
- num_palette = 16;
- color_inc = 0x11;
- break;
-
- case 8:
- num_palette = 256;
- color_inc = 1;
- break;
-
- default:
- num_palette = 0;
- color_inc = 0;
- break;
- }
-
- for (i = 0, v = 0; i < num_palette; i++, v += color_inc)
- {
- palette[i].red = (png_byte)(v & 0xff);
- palette[i].green = (png_byte)(v & 0xff);
- palette[i].blue = (png_byte)(v & 0xff);
- }
-}
-#endif
-
-#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
-int PNGAPI
-png_handle_as_unknown(png_const_structrp png_ptr, png_const_bytep chunk_name)
-{
- /* Check chunk_name and return "keep" value if it's on the list, else 0 */
- png_const_bytep p, p_end;
-
- if (png_ptr == NULL || chunk_name == NULL || png_ptr->num_chunk_list == 0)
- return PNG_HANDLE_CHUNK_AS_DEFAULT;
-
- p_end = png_ptr->chunk_list;
- p = p_end + png_ptr->num_chunk_list*5; /* beyond end */
-
- /* The code is the fifth byte after each four byte string. Historically this
- * code was always searched from the end of the list, this is no longer
- * necessary because the 'set' routine handles duplicate entries correctly.
- */
- do /* num_chunk_list > 0, so at least one */
- {
- p -= 5;
-
- if (memcmp(chunk_name, p, 4) == 0)
- return p[4];
- }
- while (p > p_end);
-
- /* This means that known chunks should be processed and unknown chunks should
- * be handled according to the value of png_ptr->unknown_default; this can be
- * confusing because, as a result, there are two levels of defaulting for
- * unknown chunks.
- */
- return PNG_HANDLE_CHUNK_AS_DEFAULT;
-}
-
-#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) ||\
- defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED)
-int /* PRIVATE */
-png_chunk_unknown_handling(png_const_structrp png_ptr, png_uint_32 chunk_name)
-{
- png_byte chunk_string[5];
-
- PNG_CSTRING_FROM_CHUNK(chunk_string, chunk_name);
- return png_handle_as_unknown(png_ptr, chunk_string);
-}
-#endif /* READ_UNKNOWN_CHUNKS || HANDLE_AS_UNKNOWN */
-#endif /* SET_UNKNOWN_CHUNKS */
-
-#ifdef PNG_READ_SUPPORTED
-/* This function, added to libpng-1.0.6g, is untested. */
-int PNGAPI
-png_reset_zstream(png_structrp png_ptr)
-{
- if (png_ptr == NULL)
- return Z_STREAM_ERROR;
-
- /* WARNING: this resets the window bits to the maximum! */
- return (inflateReset(&png_ptr->zstream));
-}
-#endif /* READ */
-
-/* This function was added to libpng-1.0.7 */
-png_uint_32 PNGAPI
-png_access_version_number(void)
-{
- /* Version of *.c files used when building libpng */
- return((png_uint_32)PNG_LIBPNG_VER);
-}
-
-#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
-/* Ensure that png_ptr->zstream.msg holds some appropriate error message string.
- * If it doesn't 'ret' is used to set it to something appropriate, even in cases
- * like Z_OK or Z_STREAM_END where the error code is apparently a success code.
- */
-void /* PRIVATE */
-png_zstream_error(png_structrp png_ptr, int ret)
-{
- /* Translate 'ret' into an appropriate error string, priority is given to the
- * one in zstream if set. This always returns a string, even in cases like
- * Z_OK or Z_STREAM_END where the error code is a success code.
- */
- if (png_ptr->zstream.msg == NULL) switch (ret)
- {
- default:
- case Z_OK:
- png_ptr->zstream.msg = PNGZ_MSG_CAST("unexpected zlib return code");
- break;
-
- case Z_STREAM_END:
- /* Normal exit */
- png_ptr->zstream.msg = PNGZ_MSG_CAST("unexpected end of LZ stream");
- break;
-
- case Z_NEED_DICT:
- /* This means the deflate stream did not have a dictionary; this
- * indicates a bogus PNG.
- */
- png_ptr->zstream.msg = PNGZ_MSG_CAST("missing LZ dictionary");
- break;
-
- case Z_ERRNO:
- /* gz APIs only: should not happen */
- png_ptr->zstream.msg = PNGZ_MSG_CAST("zlib IO error");
- break;
-
- case Z_STREAM_ERROR:
- /* internal libpng error */
- png_ptr->zstream.msg = PNGZ_MSG_CAST("bad parameters to zlib");
- break;
-
- case Z_DATA_ERROR:
- png_ptr->zstream.msg = PNGZ_MSG_CAST("damaged LZ stream");
- break;
-
- case Z_MEM_ERROR:
- png_ptr->zstream.msg = PNGZ_MSG_CAST("insufficient memory");
- break;
-
- case Z_BUF_ERROR:
- /* End of input or output; not a problem if the caller is doing
- * incremental read or write.
- */
- png_ptr->zstream.msg = PNGZ_MSG_CAST("truncated");
- break;
-
- case Z_VERSION_ERROR:
- png_ptr->zstream.msg = PNGZ_MSG_CAST("unsupported zlib version");
- break;
-
- case PNG_UNEXPECTED_ZLIB_RETURN:
- /* Compile errors here mean that zlib now uses the value co-opted in
- * pngpriv.h for PNG_UNEXPECTED_ZLIB_RETURN; update the switch above
- * and change pngpriv.h. Note that this message is "... return",
- * whereas the default/Z_OK one is "... return code".
- */
- png_ptr->zstream.msg = PNGZ_MSG_CAST("unexpected zlib return");
- break;
- }
-}
-
-/* png_convert_size: a PNGAPI but no longer in png.h, so deleted
- * at libpng 1.5.5!
- */
-
-/* Added at libpng version 1.2.34 and 1.4.0 (moved from pngset.c) */
-#ifdef PNG_GAMMA_SUPPORTED /* always set if COLORSPACE */
-static int
-png_colorspace_check_gamma(png_const_structrp png_ptr,
- png_colorspacerp colorspace, png_fixed_point gAMA, int from)
- /* This is called to check a new gamma value against an existing one. The
- * routine returns false if the new gamma value should not be written.
- *
- * 'from' says where the new gamma value comes from:
- *
- * 0: the new gamma value is the libpng estimate for an ICC profile
- * 1: the new gamma value comes from a gAMA chunk
- * 2: the new gamma value comes from an sRGB chunk
- */
-{
- png_fixed_point gtest;
-
- if ((colorspace->flags & PNG_COLORSPACE_HAVE_GAMMA) != 0 &&
- (png_muldiv(>est, colorspace->gamma, PNG_FP_1, gAMA) == 0 ||
- png_gamma_significant(gtest) != 0))
- {
- /* Either this is an sRGB image, in which case the calculated gamma
- * approximation should match, or this is an image with a profile and the
- * value libpng calculates for the gamma of the profile does not match the
- * value recorded in the file. The former, sRGB, case is an error, the
- * latter is just a warning.
- */
- if ((colorspace->flags & PNG_COLORSPACE_FROM_sRGB) != 0 || from == 2)
- {
- png_chunk_report(png_ptr, "gamma value does not match sRGB",
- PNG_CHUNK_ERROR);
- /* Do not overwrite an sRGB value */
- return from == 2;
- }
-
- else /* sRGB tag not involved */
- {
- png_chunk_report(png_ptr, "gamma value does not match libpng estimate",
- PNG_CHUNK_WARNING);
- return from == 1;
- }
- }
-
- return 1;
-}
-
-void /* PRIVATE */
-png_colorspace_set_gamma(png_const_structrp png_ptr,
- png_colorspacerp colorspace, png_fixed_point gAMA)
-{
- /* Changed in libpng-1.5.4 to limit the values to ensure overflow can't
- * occur. Since the fixed point representation is asymmetrical it is
- * possible for 1/gamma to overflow the limit of 21474 and this means the
- * gamma value must be at least 5/100000 and hence at most 20000.0. For
- * safety the limits here are a little narrower. The values are 0.00016 to
- * 6250.0, which are truly ridiculous gamma values (and will produce
- * displays that are all black or all white.)
- *
- * In 1.6.0 this test replaces the ones in pngrutil.c, in the gAMA chunk
- * handling code, which only required the value to be >0.
- */
- png_const_charp errmsg;
-
- if (gAMA < 16 || gAMA > 625000000)
- errmsg = "gamma value out of range";
-
-# ifdef PNG_READ_gAMA_SUPPORTED
- /* Allow the application to set the gamma value more than once */
- else if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 &&
- (colorspace->flags & PNG_COLORSPACE_FROM_gAMA) != 0)
- errmsg = "duplicate";
-# endif
-
- /* Do nothing if the colorspace is already invalid */
- else if ((colorspace->flags & PNG_COLORSPACE_INVALID) != 0)
- return;
-
- else
- {
- if (png_colorspace_check_gamma(png_ptr, colorspace, gAMA,
- 1/*from gAMA*/) != 0)
- {
- /* Store this gamma value. */
- colorspace->gamma = gAMA;
- colorspace->flags |=
- (PNG_COLORSPACE_HAVE_GAMMA | PNG_COLORSPACE_FROM_gAMA);
- }
-
- /* At present if the check_gamma test fails the gamma of the colorspace is
- * not updated however the colorspace is not invalidated. This
- * corresponds to the case where the existing gamma comes from an sRGB
- * chunk or profile. An error message has already been output.
- */
- return;
- }
-
- /* Error exit - errmsg has been set. */
- colorspace->flags |= PNG_COLORSPACE_INVALID;
- png_chunk_report(png_ptr, errmsg, PNG_CHUNK_WRITE_ERROR);
-}
-
-void /* PRIVATE */
-png_colorspace_sync_info(png_const_structrp png_ptr, png_inforp info_ptr)
-{
- if ((info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) != 0)
- {
- /* Everything is invalid */
- info_ptr->valid &= ~(PNG_INFO_gAMA|PNG_INFO_cHRM|PNG_INFO_sRGB|
- PNG_INFO_iCCP);
-
-# ifdef PNG_COLORSPACE_SUPPORTED
- /* Clean up the iCCP profile now if it won't be used. */
- png_free_data(png_ptr, info_ptr, PNG_FREE_ICCP, -1/*not used*/);
-# else
- PNG_UNUSED(png_ptr)
-# endif
- }
-
- else
- {
-# ifdef PNG_COLORSPACE_SUPPORTED
- /* Leave the INFO_iCCP flag set if the pngset.c code has already set
- * it; this allows a PNG to contain a profile which matches sRGB and
- * yet still have that profile retrievable by the application.
- */
- if ((info_ptr->colorspace.flags & PNG_COLORSPACE_MATCHES_sRGB) != 0)
- info_ptr->valid |= PNG_INFO_sRGB;
-
- else
- info_ptr->valid &= ~PNG_INFO_sRGB;
-
- if ((info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
- info_ptr->valid |= PNG_INFO_cHRM;
-
- else
- info_ptr->valid &= ~PNG_INFO_cHRM;
-# endif
-
- if ((info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) != 0)
- info_ptr->valid |= PNG_INFO_gAMA;
-
- else
- info_ptr->valid &= ~PNG_INFO_gAMA;
- }
-}
-
-#ifdef PNG_READ_SUPPORTED
-void /* PRIVATE */
-png_colorspace_sync(png_const_structrp png_ptr, png_inforp info_ptr)
-{
- if (info_ptr == NULL) /* reduce code size; check here not in the caller */
- return;
-
- info_ptr->colorspace = png_ptr->colorspace;
- png_colorspace_sync_info(png_ptr, info_ptr);
-}
-#endif
-#endif /* GAMMA */
-
-#ifdef PNG_COLORSPACE_SUPPORTED
-/* Added at libpng-1.5.5 to support read and write of true CIEXYZ values for
- * cHRM, as opposed to using chromaticities. These internal APIs return
- * non-zero on a parameter error. The X, Y and Z values are required to be
- * positive and less than 1.0.
- */
-static int
-png_xy_from_XYZ(png_xy *xy, const png_XYZ *XYZ)
-{
- png_int_32 d, dwhite, whiteX, whiteY;
-
- d = XYZ->red_X + XYZ->red_Y + XYZ->red_Z;
- if (png_muldiv(&xy->redx, XYZ->red_X, PNG_FP_1, d) == 0)
- return 1;
- if (png_muldiv(&xy->redy, XYZ->red_Y, PNG_FP_1, d) == 0)
- return 1;
- dwhite = d;
- whiteX = XYZ->red_X;
- whiteY = XYZ->red_Y;
-
- d = XYZ->green_X + XYZ->green_Y + XYZ->green_Z;
- if (png_muldiv(&xy->greenx, XYZ->green_X, PNG_FP_1, d) == 0)
- return 1;
- if (png_muldiv(&xy->greeny, XYZ->green_Y, PNG_FP_1, d) == 0)
- return 1;
- dwhite += d;
- whiteX += XYZ->green_X;
- whiteY += XYZ->green_Y;
-
- d = XYZ->blue_X + XYZ->blue_Y + XYZ->blue_Z;
- if (png_muldiv(&xy->bluex, XYZ->blue_X, PNG_FP_1, d) == 0)
- return 1;
- if (png_muldiv(&xy->bluey, XYZ->blue_Y, PNG_FP_1, d) == 0)
- return 1;
- dwhite += d;
- whiteX += XYZ->blue_X;
- whiteY += XYZ->blue_Y;
-
- /* The reference white is simply the sum of the end-point (X,Y,Z) vectors,
- * thus:
- */
- if (png_muldiv(&xy->whitex, whiteX, PNG_FP_1, dwhite) == 0)
- return 1;
- if (png_muldiv(&xy->whitey, whiteY, PNG_FP_1, dwhite) == 0)
- return 1;
-
- return 0;
-}
-
-static int
-png_XYZ_from_xy(png_XYZ *XYZ, const png_xy *xy)
-{
- png_fixed_point red_inverse, green_inverse, blue_scale;
- png_fixed_point left, right, denominator;
-
- /* Check xy and, implicitly, z. Note that wide gamut color spaces typically
- * have end points with 0 tristimulus values (these are impossible end
- * points, but they are used to cover the possible colors). We check
- * xy->whitey against 5, not 0, to avoid a possible integer overflow.
- */
- if (xy->redx < 0 || xy->redx > PNG_FP_1) return 1;
- if (xy->redy < 0 || xy->redy > PNG_FP_1-xy->redx) return 1;
- if (xy->greenx < 0 || xy->greenx > PNG_FP_1) return 1;
- if (xy->greeny < 0 || xy->greeny > PNG_FP_1-xy->greenx) return 1;
- if (xy->bluex < 0 || xy->bluex > PNG_FP_1) return 1;
- if (xy->bluey < 0 || xy->bluey > PNG_FP_1-xy->bluex) return 1;
- if (xy->whitex < 0 || xy->whitex > PNG_FP_1) return 1;
- if (xy->whitey < 5 || xy->whitey > PNG_FP_1-xy->whitex) return 1;
-
- /* The reverse calculation is more difficult because the original tristimulus
- * value had 9 independent values (red,green,blue)x(X,Y,Z) however only 8
- * derived values were recorded in the cHRM chunk;
- * (red,green,blue,white)x(x,y). This loses one degree of freedom and
- * therefore an arbitrary ninth value has to be introduced to undo the
- * original transformations.
- *
- * Think of the original end-points as points in (X,Y,Z) space. The
- * chromaticity values (c) have the property:
- *
- * C
- * c = ---------
- * X + Y + Z
- *
- * For each c (x,y,z) from the corresponding original C (X,Y,Z). Thus the
- * three chromaticity values (x,y,z) for each end-point obey the
- * relationship:
- *
- * x + y + z = 1
- *
- * This describes the plane in (X,Y,Z) space that intersects each axis at the
- * value 1.0; call this the chromaticity plane. Thus the chromaticity
- * calculation has scaled each end-point so that it is on the x+y+z=1 plane
- * and chromaticity is the intersection of the vector from the origin to the
- * (X,Y,Z) value with the chromaticity plane.
- *
- * To fully invert the chromaticity calculation we would need the three
- * end-point scale factors, (red-scale, green-scale, blue-scale), but these
- * were not recorded. Instead we calculated the reference white (X,Y,Z) and
- * recorded the chromaticity of this. The reference white (X,Y,Z) would have
- * given all three of the scale factors since:
- *
- * color-C = color-c * color-scale
- * white-C = red-C + green-C + blue-C
- * = red-c*red-scale + green-c*green-scale + blue-c*blue-scale
- *
- * But cHRM records only white-x and white-y, so we have lost the white scale
- * factor:
- *
- * white-C = white-c*white-scale
- *
- * To handle this the inverse transformation makes an arbitrary assumption
- * about white-scale:
- *
- * Assume: white-Y = 1.0
- * Hence: white-scale = 1/white-y
- * Or: red-Y + green-Y + blue-Y = 1.0
- *
- * Notice the last statement of the assumption gives an equation in three of
- * the nine values we want to calculate. 8 more equations come from the
- * above routine as summarised at the top above (the chromaticity
- * calculation):
- *
- * Given: color-x = color-X / (color-X + color-Y + color-Z)
- * Hence: (color-x - 1)*color-X + color.x*color-Y + color.x*color-Z = 0
- *
- * This is 9 simultaneous equations in the 9 variables "color-C" and can be
- * solved by Cramer's rule. Cramer's rule requires calculating 10 9x9 matrix
- * determinants, however this is not as bad as it seems because only 28 of
- * the total of 90 terms in the various matrices are non-zero. Nevertheless
- * Cramer's rule is notoriously numerically unstable because the determinant
- * calculation involves the difference of large, but similar, numbers. It is
- * difficult to be sure that the calculation is stable for real world values
- * and it is certain that it becomes unstable where the end points are close
- * together.
- *
- * So this code uses the perhaps slightly less optimal but more
- * understandable and totally obvious approach of calculating color-scale.
- *
- * This algorithm depends on the precision in white-scale and that is
- * (1/white-y), so we can immediately see that as white-y approaches 0 the
- * accuracy inherent in the cHRM chunk drops off substantially.
- *
- * libpng arithmetic: a simple inversion of the above equations
- * ------------------------------------------------------------
- *
- * white_scale = 1/white-y
- * white-X = white-x * white-scale
- * white-Y = 1.0
- * white-Z = (1 - white-x - white-y) * white_scale
- *
- * white-C = red-C + green-C + blue-C
- * = red-c*red-scale + green-c*green-scale + blue-c*blue-scale
- *
- * This gives us three equations in (red-scale,green-scale,blue-scale) where
- * all the coefficients are now known:
- *
- * red-x*red-scale + green-x*green-scale + blue-x*blue-scale
- * = white-x/white-y
- * red-y*red-scale + green-y*green-scale + blue-y*blue-scale = 1
- * red-z*red-scale + green-z*green-scale + blue-z*blue-scale
- * = (1 - white-x - white-y)/white-y
- *
- * In the last equation color-z is (1 - color-x - color-y) so we can add all
- * three equations together to get an alternative third:
- *
- * red-scale + green-scale + blue-scale = 1/white-y = white-scale
- *
- * So now we have a Cramer's rule solution where the determinants are just
- * 3x3 - far more tractible. Unfortunately 3x3 determinants still involve
- * multiplication of three coefficients so we can't guarantee to avoid
- * overflow in the libpng fixed point representation. Using Cramer's rule in
- * floating point is probably a good choice here, but it's not an option for
- * fixed point. Instead proceed to simplify the first two equations by
- * eliminating what is likely to be the largest value, blue-scale:
- *
- * blue-scale = white-scale - red-scale - green-scale
- *
- * Hence:
- *
- * (red-x - blue-x)*red-scale + (green-x - blue-x)*green-scale =
- * (white-x - blue-x)*white-scale
- *
- * (red-y - blue-y)*red-scale + (green-y - blue-y)*green-scale =
- * 1 - blue-y*white-scale
- *
- * And now we can trivially solve for (red-scale,green-scale):
- *
- * green-scale =
- * (white-x - blue-x)*white-scale - (red-x - blue-x)*red-scale
- * -----------------------------------------------------------
- * green-x - blue-x
- *
- * red-scale =
- * 1 - blue-y*white-scale - (green-y - blue-y) * green-scale
- * ---------------------------------------------------------
- * red-y - blue-y
- *
- * Hence:
- *
- * red-scale =
- * ( (green-x - blue-x) * (white-y - blue-y) -
- * (green-y - blue-y) * (white-x - blue-x) ) / white-y
- * -------------------------------------------------------------------------
- * (green-x - blue-x)*(red-y - blue-y)-(green-y - blue-y)*(red-x - blue-x)
- *
- * green-scale =
- * ( (red-y - blue-y) * (white-x - blue-x) -
- * (red-x - blue-x) * (white-y - blue-y) ) / white-y
- * -------------------------------------------------------------------------
- * (green-x - blue-x)*(red-y - blue-y)-(green-y - blue-y)*(red-x - blue-x)
- *
- * Accuracy:
- * The input values have 5 decimal digits of accuracy. The values are all in
- * the range 0 < value < 1, so simple products are in the same range but may
- * need up to 10 decimal digits to preserve the original precision and avoid
- * underflow. Because we are using a 32-bit signed representation we cannot
- * match this; the best is a little over 9 decimal digits, less than 10.
- *
- * The approach used here is to preserve the maximum precision within the
- * signed representation. Because the red-scale calculation above uses the
- * difference between two products of values that must be in the range -1..+1
- * it is sufficient to divide the product by 7; ceil(100,000/32767*2). The
- * factor is irrelevant in the calculation because it is applied to both
- * numerator and denominator.
- *
- * Note that the values of the differences of the products of the
- * chromaticities in the above equations tend to be small, for example for
- * the sRGB chromaticities they are:
- *
- * red numerator: -0.04751
- * green numerator: -0.08788
- * denominator: -0.2241 (without white-y multiplication)
- *
- * The resultant Y coefficients from the chromaticities of some widely used
- * color space definitions are (to 15 decimal places):
- *
- * sRGB
- * 0.212639005871510 0.715168678767756 0.072192315360734
- * Kodak ProPhoto
- * 0.288071128229293 0.711843217810102 0.000085653960605
- * Adobe RGB
- * 0.297344975250536 0.627363566255466 0.075291458493998
- * Adobe Wide Gamut RGB
- * 0.258728243040113 0.724682314948566 0.016589442011321
- */
- /* By the argument, above overflow should be impossible here. The return
- * value of 2 indicates an internal error to the caller.
- */
- if (png_muldiv(&left, xy->greenx-xy->bluex, xy->redy - xy->bluey, 7) == 0)
- return 2;
- if (png_muldiv(&right, xy->greeny-xy->bluey, xy->redx - xy->bluex, 7) == 0)
- return 2;
- denominator = left - right;
-
- /* Now find the red numerator. */
- if (png_muldiv(&left, xy->greenx-xy->bluex, xy->whitey-xy->bluey, 7) == 0)
- return 2;
- if (png_muldiv(&right, xy->greeny-xy->bluey, xy->whitex-xy->bluex, 7) == 0)
- return 2;
-
- /* Overflow is possible here and it indicates an extreme set of PNG cHRM
- * chunk values. This calculation actually returns the reciprocal of the
- * scale value because this allows us to delay the multiplication of white-y
- * into the denominator, which tends to produce a small number.
- */
- if (png_muldiv(&red_inverse, xy->whitey, denominator, left-right) == 0 ||
- red_inverse <= xy->whitey /* r+g+b scales = white scale */)
- return 1;
-
- /* Similarly for green_inverse: */
- if (png_muldiv(&left, xy->redy-xy->bluey, xy->whitex-xy->bluex, 7) == 0)
- return 2;
- if (png_muldiv(&right, xy->redx-xy->bluex, xy->whitey-xy->bluey, 7) == 0)
- return 2;
- if (png_muldiv(&green_inverse, xy->whitey, denominator, left-right) == 0 ||
- green_inverse <= xy->whitey)
- return 1;
-
- /* And the blue scale, the checks above guarantee this can't overflow but it
- * can still produce 0 for extreme cHRM values.
- */
- blue_scale = png_reciprocal(xy->whitey) - png_reciprocal(red_inverse) -
- png_reciprocal(green_inverse);
- if (blue_scale <= 0)
- return 1;
-
-
- /* And fill in the png_XYZ: */
- if (png_muldiv(&XYZ->red_X, xy->redx, PNG_FP_1, red_inverse) == 0)
- return 1;
- if (png_muldiv(&XYZ->red_Y, xy->redy, PNG_FP_1, red_inverse) == 0)
- return 1;
- if (png_muldiv(&XYZ->red_Z, PNG_FP_1 - xy->redx - xy->redy, PNG_FP_1,
- red_inverse) == 0)
- return 1;
-
- if (png_muldiv(&XYZ->green_X, xy->greenx, PNG_FP_1, green_inverse) == 0)
- return 1;
- if (png_muldiv(&XYZ->green_Y, xy->greeny, PNG_FP_1, green_inverse) == 0)
- return 1;
- if (png_muldiv(&XYZ->green_Z, PNG_FP_1 - xy->greenx - xy->greeny, PNG_FP_1,
- green_inverse) == 0)
- return 1;
-
- if (png_muldiv(&XYZ->blue_X, xy->bluex, blue_scale, PNG_FP_1) == 0)
- return 1;
- if (png_muldiv(&XYZ->blue_Y, xy->bluey, blue_scale, PNG_FP_1) == 0)
- return 1;
- if (png_muldiv(&XYZ->blue_Z, PNG_FP_1 - xy->bluex - xy->bluey, blue_scale,
- PNG_FP_1) == 0)
- return 1;
-
- return 0; /*success*/
-}
-
-static int
-png_XYZ_normalize(png_XYZ *XYZ)
-{
- png_int_32 Y;
-
- if (XYZ->red_Y < 0 || XYZ->green_Y < 0 || XYZ->blue_Y < 0 ||
- XYZ->red_X < 0 || XYZ->green_X < 0 || XYZ->blue_X < 0 ||
- XYZ->red_Z < 0 || XYZ->green_Z < 0 || XYZ->blue_Z < 0)
- return 1;
-
- /* Normalize by scaling so the sum of the end-point Y values is PNG_FP_1.
- * IMPLEMENTATION NOTE: ANSI requires signed overflow not to occur, therefore
- * relying on addition of two positive values producing a negative one is not
- * safe.
- */
- Y = XYZ->red_Y;
- if (0x7fffffff - Y < XYZ->green_X)
- return 1;
- Y += XYZ->green_Y;
- if (0x7fffffff - Y < XYZ->blue_X)
- return 1;
- Y += XYZ->blue_Y;
-
- if (Y != PNG_FP_1)
- {
- if (png_muldiv(&XYZ->red_X, XYZ->red_X, PNG_FP_1, Y) == 0)
- return 1;
- if (png_muldiv(&XYZ->red_Y, XYZ->red_Y, PNG_FP_1, Y) == 0)
- return 1;
- if (png_muldiv(&XYZ->red_Z, XYZ->red_Z, PNG_FP_1, Y) == 0)
- return 1;
-
- if (png_muldiv(&XYZ->green_X, XYZ->green_X, PNG_FP_1, Y) == 0)
- return 1;
- if (png_muldiv(&XYZ->green_Y, XYZ->green_Y, PNG_FP_1, Y) == 0)
- return 1;
- if (png_muldiv(&XYZ->green_Z, XYZ->green_Z, PNG_FP_1, Y) == 0)
- return 1;
-
- if (png_muldiv(&XYZ->blue_X, XYZ->blue_X, PNG_FP_1, Y) == 0)
- return 1;
- if (png_muldiv(&XYZ->blue_Y, XYZ->blue_Y, PNG_FP_1, Y) == 0)
- return 1;
- if (png_muldiv(&XYZ->blue_Z, XYZ->blue_Z, PNG_FP_1, Y) == 0)
- return 1;
- }
-
- return 0;
-}
-
-static int
-png_colorspace_endpoints_match(const png_xy *xy1, const png_xy *xy2, int delta)
-{
- /* Allow an error of +/-0.01 (absolute value) on each chromaticity */
- if (PNG_OUT_OF_RANGE(xy1->whitex, xy2->whitex,delta) ||
- PNG_OUT_OF_RANGE(xy1->whitey, xy2->whitey,delta) ||
- PNG_OUT_OF_RANGE(xy1->redx, xy2->redx, delta) ||
- PNG_OUT_OF_RANGE(xy1->redy, xy2->redy, delta) ||
- PNG_OUT_OF_RANGE(xy1->greenx, xy2->greenx,delta) ||
- PNG_OUT_OF_RANGE(xy1->greeny, xy2->greeny,delta) ||
- PNG_OUT_OF_RANGE(xy1->bluex, xy2->bluex, delta) ||
- PNG_OUT_OF_RANGE(xy1->bluey, xy2->bluey, delta))
- return 0;
- return 1;
-}
-
-/* Added in libpng-1.6.0, a different check for the validity of a set of cHRM
- * chunk chromaticities. Earlier checks used to simply look for the overflow
- * condition (where the determinant of the matrix to solve for XYZ ends up zero
- * because the chromaticity values are not all distinct.) Despite this it is
- * theoretically possible to produce chromaticities that are apparently valid
- * but that rapidly degrade to invalid, potentially crashing, sets because of
- * arithmetic inaccuracies when calculations are performed on them. The new
- * check is to round-trip xy -> XYZ -> xy and then check that the result is
- * within a small percentage of the original.
- */
-static int
-png_colorspace_check_xy(png_XYZ *XYZ, const png_xy *xy)
-{
- int result;
- png_xy xy_test;
-
- /* As a side-effect this routine also returns the XYZ endpoints. */
- result = png_XYZ_from_xy(XYZ, xy);
- if (result != 0)
- return result;
-
- result = png_xy_from_XYZ(&xy_test, XYZ);
- if (result != 0)
- return result;
-
- if (png_colorspace_endpoints_match(xy, &xy_test,
- 5/*actually, the math is pretty accurate*/) != 0)
- return 0;
-
- /* Too much slip */
- return 1;
-}
-
-/* This is the check going the other way. The XYZ is modified to normalize it
- * (another side-effect) and the xy chromaticities are returned.
- */
-static int
-png_colorspace_check_XYZ(png_xy *xy, png_XYZ *XYZ)
-{
- int result;
- png_XYZ XYZtemp;
-
- result = png_XYZ_normalize(XYZ);
- if (result != 0)
- return result;
-
- result = png_xy_from_XYZ(xy, XYZ);
- if (result != 0)
- return result;
-
- XYZtemp = *XYZ;
- return png_colorspace_check_xy(&XYZtemp, xy);
-}
-
-/* Used to check for an endpoint match against sRGB */
-static const png_xy sRGB_xy = /* From ITU-R BT.709-3 */
-{
- /* color x y */
- /* red */ 64000, 33000,
- /* green */ 30000, 60000,
- /* blue */ 15000, 6000,
- /* white */ 31270, 32900
-};
-
-static int
-png_colorspace_set_xy_and_XYZ(png_const_structrp png_ptr,
- png_colorspacerp colorspace, const png_xy *xy, const png_XYZ *XYZ,
- int preferred)
-{
- if ((colorspace->flags & PNG_COLORSPACE_INVALID) != 0)
- return 0;
-
- /* The consistency check is performed on the chromaticities; this factors out
- * variations because of the normalization (or not) of the end point Y
- * values.
- */
- if (preferred < 2 &&
- (colorspace->flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
- {
- /* The end points must be reasonably close to any we already have. The
- * following allows an error of up to +/-.001
- */
- if (png_colorspace_endpoints_match(xy, &colorspace->end_points_xy,
- 100) == 0)
- {
- colorspace->flags |= PNG_COLORSPACE_INVALID;
- png_benign_error(png_ptr, "inconsistent chromaticities");
- return 0; /* failed */
- }
-
- /* Only overwrite with preferred values */
- if (preferred == 0)
- return 1; /* ok, but no change */
- }
-
- colorspace->end_points_xy = *xy;
- colorspace->end_points_XYZ = *XYZ;
- colorspace->flags |= PNG_COLORSPACE_HAVE_ENDPOINTS;
-
- /* The end points are normally quoted to two decimal digits, so allow +/-0.01
- * on this test.
- */
- if (png_colorspace_endpoints_match(xy, &sRGB_xy, 1000) != 0)
- colorspace->flags |= PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB;
-
- else
- colorspace->flags &= PNG_COLORSPACE_CANCEL(
- PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB);
-
- return 2; /* ok and changed */
-}
-
-int /* PRIVATE */
-png_colorspace_set_chromaticities(png_const_structrp png_ptr,
- png_colorspacerp colorspace, const png_xy *xy, int preferred)
-{
- /* We must check the end points to ensure they are reasonable - in the past
- * color management systems have crashed as a result of getting bogus
- * colorant values, while this isn't the fault of libpng it is the
- * responsibility of libpng because PNG carries the bomb and libpng is in a
- * position to protect against it.
- */
- png_XYZ XYZ;
-
- switch (png_colorspace_check_xy(&XYZ, xy))
- {
- case 0: /* success */
- return png_colorspace_set_xy_and_XYZ(png_ptr, colorspace, xy, &XYZ,
- preferred);
-
- case 1:
- /* We can't invert the chromaticities so we can't produce value XYZ
- * values. Likely as not a color management system will fail too.
- */
- colorspace->flags |= PNG_COLORSPACE_INVALID;
- png_benign_error(png_ptr, "invalid chromaticities");
- break;
-
- default:
- /* libpng is broken; this should be a warning but if it happens we
- * want error reports so for the moment it is an error.
- */
- colorspace->flags |= PNG_COLORSPACE_INVALID;
- png_error(png_ptr, "internal error checking chromaticities");
- }
-
- return 0; /* failed */
-}
-
-int /* PRIVATE */
-png_colorspace_set_endpoints(png_const_structrp png_ptr,
- png_colorspacerp colorspace, const png_XYZ *XYZ_in, int preferred)
-{
- png_XYZ XYZ = *XYZ_in;
- png_xy xy;
-
- switch (png_colorspace_check_XYZ(&xy, &XYZ))
- {
- case 0:
- return png_colorspace_set_xy_and_XYZ(png_ptr, colorspace, &xy, &XYZ,
- preferred);
-
- case 1:
- /* End points are invalid. */
- colorspace->flags |= PNG_COLORSPACE_INVALID;
- png_benign_error(png_ptr, "invalid end points");
- break;
-
- default:
- colorspace->flags |= PNG_COLORSPACE_INVALID;
- png_error(png_ptr, "internal error checking chromaticities");
- }
-
- return 0; /* failed */
-}
-
-#if defined(PNG_sRGB_SUPPORTED) || defined(PNG_iCCP_SUPPORTED)
-/* Error message generation */
-static char
-png_icc_tag_char(png_uint_32 byte)
-{
- byte &= 0xff;
- if (byte >= 32 && byte <= 126)
- return (char)byte;
- else
- return '?';
-}
-
-static void
-png_icc_tag_name(char *name, png_uint_32 tag)
-{
- name[0] = '\'';
- name[1] = png_icc_tag_char(tag >> 24);
- name[2] = png_icc_tag_char(tag >> 16);
- name[3] = png_icc_tag_char(tag >> 8);
- name[4] = png_icc_tag_char(tag );
- name[5] = '\'';
-}
-
-static int
-is_ICC_signature_char(png_alloc_size_t it)
-{
- return it == 32 || (it >= 48 && it <= 57) || (it >= 65 && it <= 90) ||
- (it >= 97 && it <= 122);
-}
-
-static int
-is_ICC_signature(png_alloc_size_t it)
-{
- return is_ICC_signature_char(it >> 24) /* checks all the top bits */ &&
- is_ICC_signature_char((it >> 16) & 0xff) &&
- is_ICC_signature_char((it >> 8) & 0xff) &&
- is_ICC_signature_char(it & 0xff);
-}
-
-static int
-png_icc_profile_error(png_const_structrp png_ptr, png_colorspacerp colorspace,
- png_const_charp name, png_alloc_size_t value, png_const_charp reason)
-{
- size_t pos;
- char message[196]; /* see below for calculation */
-
- if (colorspace != NULL)
- colorspace->flags |= PNG_COLORSPACE_INVALID;
-
- pos = png_safecat(message, (sizeof message), 0, "profile '"); /* 9 chars */
- pos = png_safecat(message, pos+79, pos, name); /* Truncate to 79 chars */
- pos = png_safecat(message, (sizeof message), pos, "': "); /* +2 = 90 */
- if (is_ICC_signature(value) != 0)
- {
- /* So 'value' is at most 4 bytes and the following cast is safe */
- png_icc_tag_name(message+pos, (png_uint_32)value);
- pos += 6; /* total +8; less than the else clause */
- message[pos++] = ':';
- message[pos++] = ' ';
- }
-# ifdef PNG_WARNINGS_SUPPORTED
- else
- {
- char number[PNG_NUMBER_BUFFER_SIZE]; /* +24 = 114*/
-
- pos = png_safecat(message, (sizeof message), pos,
- png_format_number(number, number+(sizeof number),
- PNG_NUMBER_FORMAT_x, value));
- pos = png_safecat(message, (sizeof message), pos, "h: "); /*+2 = 116*/
- }
-# endif
- /* The 'reason' is an arbitrary message, allow +79 maximum 195 */
- pos = png_safecat(message, (sizeof message), pos, reason);
- PNG_UNUSED(pos)
-
- /* This is recoverable, but make it unconditionally an app_error on write to
- * avoid writing invalid ICC profiles into PNG files (i.e., we handle them
- * on read, with a warning, but on write unless the app turns off
- * application errors the PNG won't be written.)
- */
- png_chunk_report(png_ptr, message,
- (colorspace != NULL) ? PNG_CHUNK_ERROR : PNG_CHUNK_WRITE_ERROR);
-
- return 0;
-}
-#endif /* sRGB || iCCP */
-
-#ifdef PNG_sRGB_SUPPORTED
-int /* PRIVATE */
-png_colorspace_set_sRGB(png_const_structrp png_ptr, png_colorspacerp colorspace,
- int intent)
-{
- /* sRGB sets known gamma, end points and (from the chunk) intent. */
- /* IMPORTANT: these are not necessarily the values found in an ICC profile
- * because ICC profiles store values adapted to a D50 environment; it is
- * expected that the ICC profile mediaWhitePointTag will be D50; see the
- * checks and code elsewhere to understand this better.
- *
- * These XYZ values, which are accurate to 5dp, produce rgb to gray
- * coefficients of (6968,23435,2366), which are reduced (because they add up
- * to 32769 not 32768) to (6968,23434,2366). These are the values that
- * libpng has traditionally used (and are the best values given the 15bit
- * algorithm used by the rgb to gray code.)
- */
- static const png_XYZ sRGB_XYZ = /* D65 XYZ (*not* the D50 adapted values!) */
- {
- /* color X Y Z */
- /* red */ 41239, 21264, 1933,
- /* green */ 35758, 71517, 11919,
- /* blue */ 18048, 7219, 95053
- };
-
- /* Do nothing if the colorspace is already invalidated. */
- if ((colorspace->flags & PNG_COLORSPACE_INVALID) != 0)
- return 0;
-
- /* Check the intent, then check for existing settings. It is valid for the
- * PNG file to have cHRM or gAMA chunks along with sRGB, but the values must
- * be consistent with the correct values. If, however, this function is
- * called below because an iCCP chunk matches sRGB then it is quite
- * conceivable that an older app recorded incorrect gAMA and cHRM because of
- * an incorrect calculation based on the values in the profile - this does
- * *not* invalidate the profile (though it still produces an error, which can
- * be ignored.)
- */
- if (intent < 0 || intent >= PNG_sRGB_INTENT_LAST)
- return png_icc_profile_error(png_ptr, colorspace, "sRGB",
- (png_alloc_size_t)intent, "invalid sRGB rendering intent");
-
- if ((colorspace->flags & PNG_COLORSPACE_HAVE_INTENT) != 0 &&
- colorspace->rendering_intent != intent)
- return png_icc_profile_error(png_ptr, colorspace, "sRGB",
- (png_alloc_size_t)intent, "inconsistent rendering intents");
-
- if ((colorspace->flags & PNG_COLORSPACE_FROM_sRGB) != 0)
- {
- png_benign_error(png_ptr, "duplicate sRGB information ignored");
- return 0;
- }
-
- /* If the standard sRGB cHRM chunk does not match the one from the PNG file
- * warn but overwrite the value with the correct one.
- */
- if ((colorspace->flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0 &&
- !png_colorspace_endpoints_match(&sRGB_xy, &colorspace->end_points_xy,
- 100))
- png_chunk_report(png_ptr, "cHRM chunk does not match sRGB",
- PNG_CHUNK_ERROR);
-
- /* This check is just done for the error reporting - the routine always
- * returns true when the 'from' argument corresponds to sRGB (2).
- */
- (void)png_colorspace_check_gamma(png_ptr, colorspace, PNG_GAMMA_sRGB_INVERSE,
- 2/*from sRGB*/);
-
- /* intent: bugs in GCC force 'int' to be used as the parameter type. */
- colorspace->rendering_intent = (png_uint_16)intent;
- colorspace->flags |= PNG_COLORSPACE_HAVE_INTENT;
-
- /* endpoints */
- colorspace->end_points_xy = sRGB_xy;
- colorspace->end_points_XYZ = sRGB_XYZ;
- colorspace->flags |=
- (PNG_COLORSPACE_HAVE_ENDPOINTS|PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB);
-
- /* gamma */
- colorspace->gamma = PNG_GAMMA_sRGB_INVERSE;
- colorspace->flags |= PNG_COLORSPACE_HAVE_GAMMA;
-
- /* Finally record that we have an sRGB profile */
- colorspace->flags |=
- (PNG_COLORSPACE_MATCHES_sRGB|PNG_COLORSPACE_FROM_sRGB);
-
- return 1; /* set */
-}
-#endif /* sRGB */
-
-#ifdef PNG_iCCP_SUPPORTED
-/* Encoded value of D50 as an ICC XYZNumber. From the ICC 2010 spec the value
- * is XYZ(0.9642,1.0,0.8249), which scales to:
- *
- * (63189.8112, 65536, 54060.6464)
- */
-static const png_byte D50_nCIEXYZ[12] =
- { 0x00, 0x00, 0xf6, 0xd6, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0xd3, 0x2d };
-
-static int /* bool */
-icc_check_length(png_const_structrp png_ptr, png_colorspacerp colorspace,
- png_const_charp name, png_uint_32 profile_length)
-{
- if (profile_length < 132)
- return png_icc_profile_error(png_ptr, colorspace, name, profile_length,
- "too short");
- return 1;
-}
-
-#ifdef PNG_READ_iCCP_SUPPORTED
-int /* PRIVATE */
-png_icc_check_length(png_const_structrp png_ptr, png_colorspacerp colorspace,
- png_const_charp name, png_uint_32 profile_length)
-{
- if (!icc_check_length(png_ptr, colorspace, name, profile_length))
- return 0;
-
- /* This needs to be here because the 'normal' check is in
- * png_decompress_chunk, yet this happens after the attempt to
- * png_malloc_base the required data. We only need this on read; on write
- * the caller supplies the profile buffer so libpng doesn't allocate it. See
- * the call to icc_check_length below (the write case).
- */
-# ifdef PNG_SET_USER_LIMITS_SUPPORTED
- else if (png_ptr->user_chunk_malloc_max > 0 &&
- png_ptr->user_chunk_malloc_max < profile_length)
- return png_icc_profile_error(png_ptr, colorspace, name, profile_length,
- "exceeds application limits");
-# elif PNG_USER_CHUNK_MALLOC_MAX > 0
- else if (PNG_USER_CHUNK_MALLOC_MAX < profile_length)
- return png_icc_profile_error(png_ptr, colorspace, name, profile_length,
- "exceeds libpng limits");
-# else /* !SET_USER_LIMITS */
- /* This will get compiled out on all 32-bit and better systems. */
- else if (PNG_SIZE_MAX < profile_length)
- return png_icc_profile_error(png_ptr, colorspace, name, profile_length,
- "exceeds system limits");
-# endif /* !SET_USER_LIMITS */
-
- return 1;
-}
-#endif /* READ_iCCP */
-
-int /* PRIVATE */
-png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
- png_const_charp name, png_uint_32 profile_length,
- png_const_bytep profile/* first 132 bytes only */, int color_type)
-{
- png_uint_32 temp;
-
- /* Length check; this cannot be ignored in this code because profile_length
- * is used later to check the tag table, so even if the profile seems over
- * long profile_length from the caller must be correct. The caller can fix
- * this up on read or write by just passing in the profile header length.
- */
- temp = png_get_uint_32(profile);
- if (temp != profile_length)
- return png_icc_profile_error(png_ptr, colorspace, name, temp,
- "length does not match profile");
-
- temp = (png_uint_32) (*(profile+8));
- if (temp > 3 && (profile_length & 3))
- return png_icc_profile_error(png_ptr, colorspace, name, profile_length,
- "invalid length");
-
- temp = png_get_uint_32(profile+128); /* tag count: 12 bytes/tag */
- if (temp > 357913930 || /* (2^32-4-132)/12: maximum possible tag count */
- profile_length < 132+12*temp) /* truncated tag table */
- return png_icc_profile_error(png_ptr, colorspace, name, temp,
- "tag count too large");
-
- /* The 'intent' must be valid or we can't store it, ICC limits the intent to
- * 16 bits.
- */
- temp = png_get_uint_32(profile+64);
- if (temp >= 0xffff) /* The ICC limit */
- return png_icc_profile_error(png_ptr, colorspace, name, temp,
- "invalid rendering intent");
-
- /* This is just a warning because the profile may be valid in future
- * versions.
- */
- if (temp >= PNG_sRGB_INTENT_LAST)
- (void)png_icc_profile_error(png_ptr, NULL, name, temp,
- "intent outside defined range");
-
- /* At this point the tag table can't be checked because it hasn't necessarily
- * been loaded; however, various header fields can be checked. These checks
- * are for values permitted by the PNG spec in an ICC profile; the PNG spec
- * restricts the profiles that can be passed in an iCCP chunk (they must be
- * appropriate to processing PNG data!)
- */
-
- /* Data checks (could be skipped). These checks must be independent of the
- * version number; however, the version number doesn't accommodate changes in
- * the header fields (just the known tags and the interpretation of the
- * data.)
- */
- temp = png_get_uint_32(profile+36); /* signature 'ascp' */
- if (temp != 0x61637370)
- return png_icc_profile_error(png_ptr, colorspace, name, temp,
- "invalid signature");
-
- /* Currently the PCS illuminant/adopted white point (the computational
- * white point) are required to be D50,
- * however the profile contains a record of the illuminant so perhaps ICC
- * expects to be able to change this in the future (despite the rationale in
- * the introduction for using a fixed PCS adopted white.) Consequently the
- * following is just a warning.
- */
- if (memcmp(profile+68, D50_nCIEXYZ, 12) != 0)
- (void)png_icc_profile_error(png_ptr, NULL, name, 0/*no tag value*/,
- "PCS illuminant is not D50");
-
- /* The PNG spec requires this:
- * "If the iCCP chunk is present, the image samples conform to the colour
- * space represented by the embedded ICC profile as defined by the
- * International Color Consortium [ICC]. The colour space of the ICC profile
- * shall be an RGB colour space for colour images (PNG colour types 2, 3, and
- * 6), or a greyscale colour space for greyscale images (PNG colour types 0
- * and 4)."
- *
- * This checking code ensures the embedded profile (on either read or write)
- * conforms to the specification requirements. Notice that an ICC 'gray'
- * color-space profile contains the information to transform the monochrome
- * data to XYZ or L*a*b (according to which PCS the profile uses) and this
- * should be used in preference to the standard libpng K channel replication
- * into R, G and B channels.
- *
- * Previously it was suggested that an RGB profile on grayscale data could be
- * handled. However it it is clear that using an RGB profile in this context
- * must be an error - there is no specification of what it means. Thus it is
- * almost certainly more correct to ignore the profile.
- */
- temp = png_get_uint_32(profile+16); /* data colour space field */
- switch (temp)
- {
- case 0x52474220: /* 'RGB ' */
- if ((color_type & PNG_COLOR_MASK_COLOR) == 0)
- return png_icc_profile_error(png_ptr, colorspace, name, temp,
- "RGB color space not permitted on grayscale PNG");
- break;
-
- case 0x47524159: /* 'GRAY' */
- if ((color_type & PNG_COLOR_MASK_COLOR) != 0)
- return png_icc_profile_error(png_ptr, colorspace, name, temp,
- "Gray color space not permitted on RGB PNG");
- break;
-
- default:
- return png_icc_profile_error(png_ptr, colorspace, name, temp,
- "invalid ICC profile color space");
- }
-
- /* It is up to the application to check that the profile class matches the
- * application requirements; the spec provides no guidance, but it's pretty
- * weird if the profile is not scanner ('scnr'), monitor ('mntr'), printer
- * ('prtr') or 'spac' (for generic color spaces). Issue a warning in these
- * cases. Issue an error for device link or abstract profiles - these don't
- * contain the records necessary to transform the color-space to anything
- * other than the target device (and not even that for an abstract profile).
- * Profiles of these classes may not be embedded in images.
- */
- temp = png_get_uint_32(profile+12); /* profile/device class */
- switch (temp)
- {
- case 0x73636e72: /* 'scnr' */
- case 0x6d6e7472: /* 'mntr' */
- case 0x70727472: /* 'prtr' */
- case 0x73706163: /* 'spac' */
- /* All supported */
- break;
-
- case 0x61627374: /* 'abst' */
- /* May not be embedded in an image */
- return png_icc_profile_error(png_ptr, colorspace, name, temp,
- "invalid embedded Abstract ICC profile");
-
- case 0x6c696e6b: /* 'link' */
- /* DeviceLink profiles cannot be interpreted in a non-device specific
- * fashion, if an app uses the AToB0Tag in the profile the results are
- * undefined unless the result is sent to the intended device,
- * therefore a DeviceLink profile should not be found embedded in a
- * PNG.
- */
- return png_icc_profile_error(png_ptr, colorspace, name, temp,
- "unexpected DeviceLink ICC profile class");
-
- case 0x6e6d636c: /* 'nmcl' */
- /* A NamedColor profile is also device specific, however it doesn't
- * contain an AToB0 tag that is open to misinterpretation. Almost
- * certainly it will fail the tests below.
- */
- (void)png_icc_profile_error(png_ptr, NULL, name, temp,
- "unexpected NamedColor ICC profile class");
- break;
-
- default:
- /* To allow for future enhancements to the profile accept unrecognized
- * profile classes with a warning, these then hit the test below on the
- * tag content to ensure they are backward compatible with one of the
- * understood profiles.
- */
- (void)png_icc_profile_error(png_ptr, NULL, name, temp,
- "unrecognized ICC profile class");
- break;
- }
-
- /* For any profile other than a device link one the PCS must be encoded
- * either in XYZ or Lab.
- */
- temp = png_get_uint_32(profile+20);
- switch (temp)
- {
- case 0x58595a20: /* 'XYZ ' */
- case 0x4c616220: /* 'Lab ' */
- break;
-
- default:
- return png_icc_profile_error(png_ptr, colorspace, name, temp,
- "unexpected ICC PCS encoding");
- }
-
- return 1;
-}
-
-int /* PRIVATE */
-png_icc_check_tag_table(png_const_structrp png_ptr, png_colorspacerp colorspace,
- png_const_charp name, png_uint_32 profile_length,
- png_const_bytep profile /* header plus whole tag table */)
-{
- png_uint_32 tag_count = png_get_uint_32(profile+128);
- png_uint_32 itag;
- png_const_bytep tag = profile+132; /* The first tag */
-
- /* First scan all the tags in the table and add bits to the icc_info value
- * (temporarily in 'tags').
- */
- for (itag=0; itag < tag_count; ++itag, tag += 12)
- {
- png_uint_32 tag_id = png_get_uint_32(tag+0);
- png_uint_32 tag_start = png_get_uint_32(tag+4); /* must be aligned */
- png_uint_32 tag_length = png_get_uint_32(tag+8);/* not padded */
-
- /* The ICC specification does not exclude zero length tags, therefore the
- * start might actually be anywhere if there is no data, but this would be
- * a clear abuse of the intent of the standard so the start is checked for
- * being in range. All defined tag types have an 8 byte header - a 4 byte
- * type signature then 0.
- */
-
- /* This is a hard error; potentially it can cause read outside the
- * profile.
- */
- if (tag_start > profile_length || tag_length > profile_length - tag_start)
- return png_icc_profile_error(png_ptr, colorspace, name, tag_id,
- "ICC profile tag outside profile");
-
- if ((tag_start & 3) != 0)
- {
- /* CNHP730S.icc shipped with Microsoft Windows 64 violates this; it is
- * only a warning here because libpng does not care about the
- * alignment.
- */
- (void)png_icc_profile_error(png_ptr, NULL, name, tag_id,
- "ICC profile tag start not a multiple of 4");
- }
- }
-
- return 1; /* success, maybe with warnings */
-}
-
-#ifdef PNG_sRGB_SUPPORTED
-#if PNG_sRGB_PROFILE_CHECKS >= 0
-/* Information about the known ICC sRGB profiles */
-static const struct
-{
- png_uint_32 adler, crc, length;
- png_uint_32 md5[4];
- png_byte have_md5;
- png_byte is_broken;
- png_uint_16 intent;
-
-# define PNG_MD5(a,b,c,d) { a, b, c, d }, (a!=0)||(b!=0)||(c!=0)||(d!=0)
-# define PNG_ICC_CHECKSUM(adler, crc, md5, intent, broke, date, length, fname)\
- { adler, crc, length, md5, broke, intent },
-
-} png_sRGB_checks[] =
-{
- /* This data comes from contrib/tools/checksum-icc run on downloads of
- * all four ICC sRGB profiles from www.color.org.
- */
- /* adler32, crc32, MD5[4], intent, date, length, file-name */
- PNG_ICC_CHECKSUM(0x0a3fd9f6, 0x3b8772b9,
- PNG_MD5(0x29f83dde, 0xaff255ae, 0x7842fae4, 0xca83390d), 0, 0,
- "2009/03/27 21:36:31", 3048, "sRGB_IEC61966-2-1_black_scaled.icc")
-
- /* ICC sRGB v2 perceptual no black-compensation: */
- PNG_ICC_CHECKSUM(0x4909e5e1, 0x427ebb21,
- PNG_MD5(0xc95bd637, 0xe95d8a3b, 0x0df38f99, 0xc1320389), 1, 0,
- "2009/03/27 21:37:45", 3052, "sRGB_IEC61966-2-1_no_black_scaling.icc")
-
- PNG_ICC_CHECKSUM(0xfd2144a1, 0x306fd8ae,
- PNG_MD5(0xfc663378, 0x37e2886b, 0xfd72e983, 0x8228f1b8), 0, 0,
- "2009/08/10 17:28:01", 60988, "sRGB_v4_ICC_preference_displayclass.icc")
-
- /* ICC sRGB v4 perceptual */
- PNG_ICC_CHECKSUM(0x209c35d2, 0xbbef7812,
- PNG_MD5(0x34562abf, 0x994ccd06, 0x6d2c5721, 0xd0d68c5d), 0, 0,
- "2007/07/25 00:05:37", 60960, "sRGB_v4_ICC_preference.icc")
-
- /* The following profiles have no known MD5 checksum. If there is a match
- * on the (empty) MD5 the other fields are used to attempt a match and
- * a warning is produced. The first two of these profiles have a 'cprt' tag
- * which suggests that they were also made by Hewlett Packard.
- */
- PNG_ICC_CHECKSUM(0xa054d762, 0x5d5129ce,
- PNG_MD5(0x00000000, 0x00000000, 0x00000000, 0x00000000), 1, 0,
- "2004/07/21 18:57:42", 3024, "sRGB_IEC61966-2-1_noBPC.icc")
-
- /* This is a 'mntr' (display) profile with a mediaWhitePointTag that does not
- * match the D50 PCS illuminant in the header (it is in fact the D65 values,
- * so the white point is recorded as the un-adapted value.) The profiles
- * below only differ in one byte - the intent - and are basically the same as
- * the previous profile except for the mediaWhitePointTag error and a missing
- * chromaticAdaptationTag.
- */
- PNG_ICC_CHECKSUM(0xf784f3fb, 0x182ea552,
- PNG_MD5(0x00000000, 0x00000000, 0x00000000, 0x00000000), 0, 1/*broken*/,
- "1998/02/09 06:49:00", 3144, "HP-Microsoft sRGB v2 perceptual")
-
- PNG_ICC_CHECKSUM(0x0398f3fc, 0xf29e526d,
- PNG_MD5(0x00000000, 0x00000000, 0x00000000, 0x00000000), 1, 1/*broken*/,
- "1998/02/09 06:49:00", 3144, "HP-Microsoft sRGB v2 media-relative")
-};
-
-static int
-png_compare_ICC_profile_with_sRGB(png_const_structrp png_ptr,
- png_const_bytep profile, uLong adler)
-{
- /* The quick check is to verify just the MD5 signature and trust the
- * rest of the data. Because the profile has already been verified for
- * correctness this is safe. png_colorspace_set_sRGB will check the 'intent'
- * field too, so if the profile has been edited with an intent not defined
- * by sRGB (but maybe defined by a later ICC specification) the read of
- * the profile will fail at that point.
- */
-
- png_uint_32 length = 0;
- png_uint_32 intent = 0x10000; /* invalid */
-#if PNG_sRGB_PROFILE_CHECKS > 1
- uLong crc = 0; /* the value for 0 length data */
-#endif
- unsigned int i;
-
-#ifdef PNG_SET_OPTION_SUPPORTED
- /* First see if PNG_SKIP_sRGB_CHECK_PROFILE has been set to "on" */
- if (((png_ptr->options >> PNG_SKIP_sRGB_CHECK_PROFILE) & 3) ==
- PNG_OPTION_ON)
- return 0;
-#endif
-
- for (i=0; i < (sizeof png_sRGB_checks) / (sizeof png_sRGB_checks[0]); ++i)
- {
- if (png_get_uint_32(profile+84) == png_sRGB_checks[i].md5[0] &&
- png_get_uint_32(profile+88) == png_sRGB_checks[i].md5[1] &&
- png_get_uint_32(profile+92) == png_sRGB_checks[i].md5[2] &&
- png_get_uint_32(profile+96) == png_sRGB_checks[i].md5[3])
- {
- /* This may be one of the old HP profiles without an MD5, in that
- * case we can only use the length and Adler32 (note that these
- * are not used by default if there is an MD5!)
- */
-# if PNG_sRGB_PROFILE_CHECKS == 0
- if (png_sRGB_checks[i].have_md5 != 0)
- return 1+png_sRGB_checks[i].is_broken;
-# endif
-
- /* Profile is unsigned or more checks have been configured in. */
- if (length == 0)
- {
- length = png_get_uint_32(profile);
- intent = png_get_uint_32(profile+64);
- }
-
- /* Length *and* intent must match */
- if (length == (png_uint_32) png_sRGB_checks[i].length &&
- intent == (png_uint_32) png_sRGB_checks[i].intent)
- {
- /* Now calculate the adler32 if not done already. */
- if (adler == 0)
- {
- adler = adler32(0, NULL, 0);
- adler = adler32(adler, profile, length);
- }
-
- if (adler == png_sRGB_checks[i].adler)
- {
- /* These basic checks suggest that the data has not been
- * modified, but if the check level is more than 1 perform
- * our own crc32 checksum on the data.
- */
-# if PNG_sRGB_PROFILE_CHECKS > 1
- if (crc == 0)
- {
- crc = crc32(0, NULL, 0);
- crc = crc32(crc, profile, length);
- }
-
- /* So this check must pass for the 'return' below to happen.
- */
- if (crc == png_sRGB_checks[i].crc)
-# endif
- {
- if (png_sRGB_checks[i].is_broken != 0)
- {
- /* These profiles are known to have bad data that may cause
- * problems if they are used, therefore attempt to
- * discourage their use, skip the 'have_md5' warning below,
- * which is made irrelevant by this error.
- */
- png_chunk_report(png_ptr, "known incorrect sRGB profile",
- PNG_CHUNK_ERROR);
- }
-
- /* Warn that this being done; this isn't even an error since
- * the profile is perfectly valid, but it would be nice if
- * people used the up-to-date ones.
- */
- else if (png_sRGB_checks[i].have_md5 == 0)
- {
- png_chunk_report(png_ptr,
- "out-of-date sRGB profile with no signature",
- PNG_CHUNK_WARNING);
- }
-
- return 1+png_sRGB_checks[i].is_broken;
- }
- }
-
-# if PNG_sRGB_PROFILE_CHECKS > 0
- /* The signature matched, but the profile had been changed in some
- * way. This probably indicates a data error or uninformed hacking.
- * Fall through to "no match".
- */
- png_chunk_report(png_ptr,
- "Not recognizing known sRGB profile that has been edited",
- PNG_CHUNK_WARNING);
- break;
-# endif
- }
- }
- }
-
- return 0; /* no match */
-}
-
-void /* PRIVATE */
-png_icc_set_sRGB(png_const_structrp png_ptr,
- png_colorspacerp colorspace, png_const_bytep profile, uLong adler)
-{
- /* Is this profile one of the known ICC sRGB profiles? If it is, just set
- * the sRGB information.
- */
- if (png_compare_ICC_profile_with_sRGB(png_ptr, profile, adler) != 0)
- (void)png_colorspace_set_sRGB(png_ptr, colorspace,
- (int)/*already checked*/png_get_uint_32(profile+64));
-}
-#endif /* PNG_sRGB_PROFILE_CHECKS >= 0 */
-#endif /* sRGB */
-
-int /* PRIVATE */
-png_colorspace_set_ICC(png_const_structrp png_ptr, png_colorspacerp colorspace,
- png_const_charp name, png_uint_32 profile_length, png_const_bytep profile,
- int color_type)
-{
- if ((colorspace->flags & PNG_COLORSPACE_INVALID) != 0)
- return 0;
-
- if (icc_check_length(png_ptr, colorspace, name, profile_length) != 0 &&
- png_icc_check_header(png_ptr, colorspace, name, profile_length, profile,
- color_type) != 0 &&
- png_icc_check_tag_table(png_ptr, colorspace, name, profile_length,
- profile) != 0)
- {
-# if defined(PNG_sRGB_SUPPORTED) && PNG_sRGB_PROFILE_CHECKS >= 0
- /* If no sRGB support, don't try storing sRGB information */
- png_icc_set_sRGB(png_ptr, colorspace, profile, 0);
-# endif
- return 1;
- }
-
- /* Failure case */
- return 0;
-}
-#endif /* iCCP */
-
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
-void /* PRIVATE */
-png_colorspace_set_rgb_coefficients(png_structrp png_ptr)
-{
- /* Set the rgb_to_gray coefficients from the colorspace. */
- if (png_ptr->rgb_to_gray_coefficients_set == 0 &&
- (png_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
- {
- /* png_set_background has not been called, get the coefficients from the Y
- * values of the colorspace colorants.
- */
- png_fixed_point r = png_ptr->colorspace.end_points_XYZ.red_Y;
- png_fixed_point g = png_ptr->colorspace.end_points_XYZ.green_Y;
- png_fixed_point b = png_ptr->colorspace.end_points_XYZ.blue_Y;
- png_fixed_point total = r+g+b;
-
- if (total > 0 &&
- r >= 0 && png_muldiv(&r, r, 32768, total) && r >= 0 && r <= 32768 &&
- g >= 0 && png_muldiv(&g, g, 32768, total) && g >= 0 && g <= 32768 &&
- b >= 0 && png_muldiv(&b, b, 32768, total) && b >= 0 && b <= 32768 &&
- r+g+b <= 32769)
- {
- /* We allow 0 coefficients here. r+g+b may be 32769 if two or
- * all of the coefficients were rounded up. Handle this by
- * reducing the *largest* coefficient by 1; this matches the
- * approach used for the default coefficients in pngrtran.c
- */
- int add = 0;
-
- if (r+g+b > 32768)
- add = -1;
- else if (r+g+b < 32768)
- add = 1;
-
- if (add != 0)
- {
- if (g >= r && g >= b)
- g += add;
- else if (r >= g && r >= b)
- r += add;
- else
- b += add;
- }
-
- /* Check for an internal error. */
- if (r+g+b != 32768)
- png_error(png_ptr,
- "internal error handling cHRM coefficients");
-
- else
- {
- png_ptr->rgb_to_gray_red_coeff = (png_uint_16)r;
- png_ptr->rgb_to_gray_green_coeff = (png_uint_16)g;
- }
- }
-
- /* This is a png_error at present even though it could be ignored -
- * it should never happen, but it is important that if it does, the
- * bug is fixed.
- */
- else
- png_error(png_ptr, "internal error handling cHRM->XYZ");
- }
-}
-#endif /* READ_RGB_TO_GRAY */
-
-#endif /* COLORSPACE */
-
-#ifdef __GNUC__
-/* This exists solely to work round a warning from GNU C. */
-static int /* PRIVATE */
-png_gt(size_t a, size_t b)
-{
- return a > b;
-}
-#else
-# define png_gt(a,b) ((a) > (b))
-#endif
-
-void /* PRIVATE */
-png_check_IHDR(png_const_structrp png_ptr,
- png_uint_32 width, png_uint_32 height, int bit_depth,
- int color_type, int interlace_type, int compression_type,
- int filter_type)
-{
- int error = 0;
-
- /* Check for width and height valid values */
- if (width == 0)
- {
- png_warning(png_ptr, "Image width is zero in IHDR");
- error = 1;
- }
-
- if (width > PNG_UINT_31_MAX)
- {
- png_warning(png_ptr, "Invalid image width in IHDR");
- error = 1;
- }
-
- if (png_gt(((width + 7) & (~7U)),
- ((PNG_SIZE_MAX
- - 48 /* big_row_buf hack */
- - 1) /* filter byte */
- / 8) /* 8-byte RGBA pixels */
- - 1)) /* extra max_pixel_depth pad */
- {
- /* The size of the row must be within the limits of this architecture.
- * Because the read code can perform arbitrary transformations the
- * maximum size is checked here. Because the code in png_read_start_row
- * adds extra space "for safety's sake" in several places a conservative
- * limit is used here.
- *
- * NOTE: it would be far better to check the size that is actually used,
- * but the effect in the real world is minor and the changes are more
- * extensive, therefore much more dangerous and much more difficult to
- * write in a way that avoids compiler warnings.
- */
- png_warning(png_ptr, "Image width is too large for this architecture");
- error = 1;
- }
-
-#ifdef PNG_SET_USER_LIMITS_SUPPORTED
- if (width > png_ptr->user_width_max)
-#else
- if (width > PNG_USER_WIDTH_MAX)
-#endif
- {
- png_warning(png_ptr, "Image width exceeds user limit in IHDR");
- error = 1;
- }
-
- if (height == 0)
- {
- png_warning(png_ptr, "Image height is zero in IHDR");
- error = 1;
- }
-
- if (height > PNG_UINT_31_MAX)
- {
- png_warning(png_ptr, "Invalid image height in IHDR");
- error = 1;
- }
-
-#ifdef PNG_SET_USER_LIMITS_SUPPORTED
- if (height > png_ptr->user_height_max)
-#else
- if (height > PNG_USER_HEIGHT_MAX)
-#endif
- {
- png_warning(png_ptr, "Image height exceeds user limit in IHDR");
- error = 1;
- }
-
- /* Check other values */
- if (bit_depth != 1 && bit_depth != 2 && bit_depth != 4 &&
- bit_depth != 8 && bit_depth != 16)
- {
- png_warning(png_ptr, "Invalid bit depth in IHDR");
- error = 1;
- }
-
- if (color_type < 0 || color_type == 1 ||
- color_type == 5 || color_type > 6)
- {
- png_warning(png_ptr, "Invalid color type in IHDR");
- error = 1;
- }
-
- if (((color_type == PNG_COLOR_TYPE_PALETTE) && bit_depth > 8) ||
- ((color_type == PNG_COLOR_TYPE_RGB ||
- color_type == PNG_COLOR_TYPE_GRAY_ALPHA ||
- color_type == PNG_COLOR_TYPE_RGB_ALPHA) && bit_depth < 8))
- {
- png_warning(png_ptr, "Invalid color type/bit depth combination in IHDR");
- error = 1;
- }
-
- if (interlace_type >= PNG_INTERLACE_LAST)
- {
- png_warning(png_ptr, "Unknown interlace method in IHDR");
- error = 1;
- }
-
- if (compression_type != PNG_COMPRESSION_TYPE_BASE)
- {
- png_warning(png_ptr, "Unknown compression method in IHDR");
- error = 1;
- }
-
-#ifdef PNG_MNG_FEATURES_SUPPORTED
- /* Accept filter_method 64 (intrapixel differencing) only if
- * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and
- * 2. Libpng did not read a PNG signature (this filter_method is only
- * used in PNG datastreams that are embedded in MNG datastreams) and
- * 3. The application called png_permit_mng_features with a mask that
- * included PNG_FLAG_MNG_FILTER_64 and
- * 4. The filter_method is 64 and
- * 5. The color_type is RGB or RGBA
- */
- if ((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) != 0 &&
- png_ptr->mng_features_permitted != 0)
- png_warning(png_ptr, "MNG features are not allowed in a PNG datastream");
-
- if (filter_type != PNG_FILTER_TYPE_BASE)
- {
- if (!((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) != 0 &&
- (filter_type == PNG_INTRAPIXEL_DIFFERENCING) &&
- ((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) == 0) &&
- (color_type == PNG_COLOR_TYPE_RGB ||
- color_type == PNG_COLOR_TYPE_RGB_ALPHA)))
- {
- png_warning(png_ptr, "Unknown filter method in IHDR");
- error = 1;
- }
-
- if ((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) != 0)
- {
- png_warning(png_ptr, "Invalid filter method in IHDR");
- error = 1;
- }
- }
-
-#else
- if (filter_type != PNG_FILTER_TYPE_BASE)
- {
- png_warning(png_ptr, "Unknown filter method in IHDR");
- error = 1;
- }
-#endif
-
- if (error == 1)
- png_error(png_ptr, "Invalid IHDR data");
-}
-
-#if defined(PNG_sCAL_SUPPORTED) || defined(PNG_pCAL_SUPPORTED)
-/* ASCII to fp functions */
-/* Check an ASCII formatted floating point value, see the more detailed
- * comments in pngpriv.h
- */
-/* The following is used internally to preserve the sticky flags */
-#define png_fp_add(state, flags) ((state) |= (flags))
-#define png_fp_set(state, value) ((state) = (value) | ((state) & PNG_FP_STICKY))
-
-int /* PRIVATE */
-png_check_fp_number(png_const_charp string, size_t size, int *statep,
- png_size_tp whereami)
-{
- int state = *statep;
- size_t i = *whereami;
-
- while (i < size)
- {
- int type;
- /* First find the type of the next character */
- switch (string[i])
- {
- case 43: type = PNG_FP_SAW_SIGN; break;
- case 45: type = PNG_FP_SAW_SIGN + PNG_FP_NEGATIVE; break;
- case 46: type = PNG_FP_SAW_DOT; break;
- case 48: type = PNG_FP_SAW_DIGIT; break;
- case 49: case 50: case 51: case 52:
- case 53: case 54: case 55: case 56:
- case 57: type = PNG_FP_SAW_DIGIT + PNG_FP_NONZERO; break;
- case 69:
- case 101: type = PNG_FP_SAW_E; break;
- default: goto PNG_FP_End;
- }
-
- /* Now deal with this type according to the current
- * state, the type is arranged to not overlap the
- * bits of the PNG_FP_STATE.
- */
- switch ((state & PNG_FP_STATE) + (type & PNG_FP_SAW_ANY))
- {
- case PNG_FP_INTEGER + PNG_FP_SAW_SIGN:
- if ((state & PNG_FP_SAW_ANY) != 0)
- goto PNG_FP_End; /* not a part of the number */
-
- png_fp_add(state, type);
- break;
-
- case PNG_FP_INTEGER + PNG_FP_SAW_DOT:
- /* Ok as trailer, ok as lead of fraction. */
- if ((state & PNG_FP_SAW_DOT) != 0) /* two dots */
- goto PNG_FP_End;
-
- else if ((state & PNG_FP_SAW_DIGIT) != 0) /* trailing dot? */
- png_fp_add(state, type);
-
- else
- png_fp_set(state, PNG_FP_FRACTION | type);
-
- break;
-
- case PNG_FP_INTEGER + PNG_FP_SAW_DIGIT:
- if ((state & PNG_FP_SAW_DOT) != 0) /* delayed fraction */
- png_fp_set(state, PNG_FP_FRACTION | PNG_FP_SAW_DOT);
-
- png_fp_add(state, type | PNG_FP_WAS_VALID);
-
- break;
-
- case PNG_FP_INTEGER + PNG_FP_SAW_E:
- if ((state & PNG_FP_SAW_DIGIT) == 0)
- goto PNG_FP_End;
-
- png_fp_set(state, PNG_FP_EXPONENT);
-
- break;
-
- /* case PNG_FP_FRACTION + PNG_FP_SAW_SIGN:
- goto PNG_FP_End; ** no sign in fraction */
-
- /* case PNG_FP_FRACTION + PNG_FP_SAW_DOT:
- goto PNG_FP_End; ** Because SAW_DOT is always set */
-
- case PNG_FP_FRACTION + PNG_FP_SAW_DIGIT:
- png_fp_add(state, type | PNG_FP_WAS_VALID);
- break;
-
- case PNG_FP_FRACTION + PNG_FP_SAW_E:
- /* This is correct because the trailing '.' on an
- * integer is handled above - so we can only get here
- * with the sequence ".E" (with no preceding digits).
- */
- if ((state & PNG_FP_SAW_DIGIT) == 0)
- goto PNG_FP_End;
-
- png_fp_set(state, PNG_FP_EXPONENT);
-
- break;
-
- case PNG_FP_EXPONENT + PNG_FP_SAW_SIGN:
- if ((state & PNG_FP_SAW_ANY) != 0)
- goto PNG_FP_End; /* not a part of the number */
-
- png_fp_add(state, PNG_FP_SAW_SIGN);
-
- break;
-
- /* case PNG_FP_EXPONENT + PNG_FP_SAW_DOT:
- goto PNG_FP_End; */
-
- case PNG_FP_EXPONENT + PNG_FP_SAW_DIGIT:
- png_fp_add(state, PNG_FP_SAW_DIGIT | PNG_FP_WAS_VALID);
-
- break;
-
- /* case PNG_FP_EXPONEXT + PNG_FP_SAW_E:
- goto PNG_FP_End; */
-
- default: goto PNG_FP_End; /* I.e. break 2 */
- }
-
- /* The character seems ok, continue. */
- ++i;
- }
-
-PNG_FP_End:
- /* Here at the end, update the state and return the correct
- * return code.
- */
- *statep = state;
- *whereami = i;
-
- return (state & PNG_FP_SAW_DIGIT) != 0;
-}
-
-
-/* The same but for a complete string. */
-int
-png_check_fp_string(png_const_charp string, size_t size)
-{
- int state=0;
- size_t char_index=0;
-
- if (png_check_fp_number(string, size, &state, &char_index) != 0 &&
- (char_index == size || string[char_index] == 0))
- return state /* must be non-zero - see above */;
-
- return 0; /* i.e. fail */
-}
-#endif /* pCAL || sCAL */
-
-#ifdef PNG_sCAL_SUPPORTED
-# ifdef PNG_FLOATING_POINT_SUPPORTED
-/* Utility used below - a simple accurate power of ten from an integral
- * exponent.
- */
-static double
-png_pow10(int power)
-{
- int recip = 0;
- double d = 1;
-
- /* Handle negative exponent with a reciprocal at the end because
- * 10 is exact whereas .1 is inexact in base 2
- */
- if (power < 0)
- {
- if (power < DBL_MIN_10_EXP) return 0;
- recip = 1; power = -power;
- }
-
- if (power > 0)
- {
- /* Decompose power bitwise. */
- double mult = 10;
- do
- {
- if (power & 1) d *= mult;
- mult *= mult;
- power >>= 1;
- }
- while (power > 0);
-
- if (recip != 0) d = 1/d;
- }
- /* else power is 0 and d is 1 */
-
- return d;
-}
-
-/* Function to format a floating point value in ASCII with a given
- * precision.
- */
-#if GCC_STRICT_OVERFLOW
-#pragma GCC diagnostic push
-/* The problem arises below with exp_b10, which can never overflow because it
- * comes, originally, from frexp and is therefore limited to a range which is
- * typically +/-710 (log2(DBL_MAX)/log2(DBL_MIN)).
- */
-#pragma GCC diagnostic warning "-Wstrict-overflow=2"
-#endif /* GCC_STRICT_OVERFLOW */
-void /* PRIVATE */
-png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, size_t size,
- double fp, unsigned int precision)
-{
- /* We use standard functions from math.h, but not printf because
- * that would require stdio. The caller must supply a buffer of
- * sufficient size or we will png_error. The tests on size and
- * the space in ascii[] consumed are indicated below.
- */
- if (precision < 1)
- precision = DBL_DIG;
-
- /* Enforce the limit of the implementation precision too. */
- if (precision > DBL_DIG+1)
- precision = DBL_DIG+1;
-
- /* Basic sanity checks */
- if (size >= precision+5) /* See the requirements below. */
- {
- if (fp < 0)
- {
- fp = -fp;
- *ascii++ = 45; /* '-' PLUS 1 TOTAL 1 */
- --size;
- }
-
- if (fp >= DBL_MIN && fp <= DBL_MAX)
- {
- int exp_b10; /* A base 10 exponent */
- double base; /* 10^exp_b10 */
-
- /* First extract a base 10 exponent of the number,
- * the calculation below rounds down when converting
- * from base 2 to base 10 (multiply by log10(2) -
- * 0.3010, but 77/256 is 0.3008, so exp_b10 needs to
- * be increased. Note that the arithmetic shift
- * performs a floor() unlike C arithmetic - using a
- * C multiply would break the following for negative
- * exponents.
- */
- (void)frexp(fp, &exp_b10); /* exponent to base 2 */
-
- exp_b10 = (exp_b10 * 77) >> 8; /* <= exponent to base 10 */
-
- /* Avoid underflow here. */
- base = png_pow10(exp_b10); /* May underflow */
-
- while (base < DBL_MIN || base < fp)
- {
- /* And this may overflow. */
- double test = png_pow10(exp_b10+1);
-
- if (test <= DBL_MAX)
- {
- ++exp_b10; base = test;
- }
-
- else
- break;
- }
-
- /* Normalize fp and correct exp_b10, after this fp is in the
- * range [.1,1) and exp_b10 is both the exponent and the digit
- * *before* which the decimal point should be inserted
- * (starting with 0 for the first digit). Note that this
- * works even if 10^exp_b10 is out of range because of the
- * test on DBL_MAX above.
- */
- fp /= base;
- while (fp >= 1)
- {
- fp /= 10; ++exp_b10;
- }
-
- /* Because of the code above fp may, at this point, be
- * less than .1, this is ok because the code below can
- * handle the leading zeros this generates, so no attempt
- * is made to correct that here.
- */
-
- {
- unsigned int czero, clead, cdigits;
- char exponent[10];
-
- /* Allow up to two leading zeros - this will not lengthen
- * the number compared to using E-n.
- */
- if (exp_b10 < 0 && exp_b10 > -3) /* PLUS 3 TOTAL 4 */
- {
- czero = 0U-exp_b10; /* PLUS 2 digits: TOTAL 3 */
- exp_b10 = 0; /* Dot added below before first output. */
- }
- else
- czero = 0; /* No zeros to add */
-
- /* Generate the digit list, stripping trailing zeros and
- * inserting a '.' before a digit if the exponent is 0.
- */
- clead = czero; /* Count of leading zeros */
- cdigits = 0; /* Count of digits in list. */
-
- do
- {
- double d;
-
- fp *= 10;
- /* Use modf here, not floor and subtract, so that
- * the separation is done in one step. At the end
- * of the loop don't break the number into parts so
- * that the final digit is rounded.
- */
- if (cdigits+czero+1 < precision+clead)
- fp = modf(fp, &d);
-
- else
- {
- d = floor(fp + .5);
-
- if (d > 9)
- {
- /* Rounding up to 10, handle that here. */
- if (czero > 0)
- {
- --czero; d = 1;
- if (cdigits == 0) --clead;
- }
- else
- {
- while (cdigits > 0 && d > 9)
- {
- int ch = *--ascii;
-
- if (exp_b10 != (-1))
- ++exp_b10;
-
- else if (ch == 46)
- {
- ch = *--ascii; ++size;
- /* Advance exp_b10 to '1', so that the
- * decimal point happens after the
- * previous digit.
- */
- exp_b10 = 1;
- }
-
- --cdigits;
- d = ch - 47; /* I.e. 1+(ch-48) */
- }
-
- /* Did we reach the beginning? If so adjust the
- * exponent but take into account the leading
- * decimal point.
- */
- if (d > 9) /* cdigits == 0 */
- {
- if (exp_b10 == (-1))
- {
- /* Leading decimal point (plus zeros?), if
- * we lose the decimal point here it must
- * be reentered below.
- */
- int ch = *--ascii;
-
- if (ch == 46)
- {
- ++size; exp_b10 = 1;
- }
-
- /* Else lost a leading zero, so 'exp_b10' is
- * still ok at (-1)
- */
- }
- else
- ++exp_b10;
-
- /* In all cases we output a '1' */
- d = 1;
- }
- }
- }
- fp = 0; /* Guarantees termination below. */
- }
-
- if (d == 0)
- {
- ++czero;
- if (cdigits == 0) ++clead;
- }
- else
- {
- /* Included embedded zeros in the digit count. */
- cdigits += czero - clead;
- clead = 0;
-
- while (czero > 0)
- {
- /* exp_b10 == (-1) means we just output the decimal
- * place - after the DP don't adjust 'exp_b10' any
- * more!
- */
- if (exp_b10 != (-1))
- {
- if (exp_b10 == 0)
- {
- *ascii++ = 46; --size;
- }
- /* PLUS 1: TOTAL 4 */
- --exp_b10;
- }
- *ascii++ = 48; --czero;
- }
-
- if (exp_b10 != (-1))
- {
- if (exp_b10 == 0)
- {
- *ascii++ = 46; --size; /* counted above */
- }
-
- --exp_b10;
- }
- *ascii++ = (char)(48 + (int)d); ++cdigits;
- }
- }
- while (cdigits+czero < precision+clead && fp > DBL_MIN);
-
- /* The total output count (max) is now 4+precision */
-
- /* Check for an exponent, if we don't need one we are
- * done and just need to terminate the string. At this
- * point, exp_b10==(-1) is effectively a flag: it got
- * to '-1' because of the decrement, after outputting
- * the decimal point above. (The exponent required is
- * *not* -1.)
- */
- if (exp_b10 >= (-1) && exp_b10 <= 2)
- {
- /* The following only happens if we didn't output the
- * leading zeros above for negative exponent, so this
- * doesn't add to the digit requirement. Note that the
- * two zeros here can only be output if the two leading
- * zeros were *not* output, so this doesn't increase
- * the output count.
- */
- while (exp_b10-- > 0) *ascii++ = 48;
-
- *ascii = 0;
-
- /* Total buffer requirement (including the '\0') is
- * 5+precision - see check at the start.
- */
- return;
- }
-
- /* Here if an exponent is required, adjust size for
- * the digits we output but did not count. The total
- * digit output here so far is at most 1+precision - no
- * decimal point and no leading or trailing zeros have
- * been output.
- */
- size -= cdigits;
-
- *ascii++ = 69; --size; /* 'E': PLUS 1 TOTAL 2+precision */
-
- /* The following use of an unsigned temporary avoids ambiguities in
- * the signed arithmetic on exp_b10 and permits GCC at least to do
- * better optimization.
- */
- {
- unsigned int uexp_b10;
-
- if (exp_b10 < 0)
- {
- *ascii++ = 45; --size; /* '-': PLUS 1 TOTAL 3+precision */
- uexp_b10 = 0U-exp_b10;
- }
-
- else
- uexp_b10 = 0U+exp_b10;
-
- cdigits = 0;
-
- while (uexp_b10 > 0)
- {
- exponent[cdigits++] = (char)(48 + uexp_b10 % 10);
- uexp_b10 /= 10;
- }
- }
-
- /* Need another size check here for the exponent digits, so
- * this need not be considered above.
- */
- if (size > cdigits)
- {
- while (cdigits > 0) *ascii++ = exponent[--cdigits];
-
- *ascii = 0;
-
- return;
- }
- }
- }
- else if (!(fp >= DBL_MIN))
- {
- *ascii++ = 48; /* '0' */
- *ascii = 0;
- return;
- }
- else
- {
- *ascii++ = 105; /* 'i' */
- *ascii++ = 110; /* 'n' */
- *ascii++ = 102; /* 'f' */
- *ascii = 0;
- return;
- }
- }
-
- /* Here on buffer too small. */
- png_error(png_ptr, "ASCII conversion buffer too small");
-}
-#if GCC_STRICT_OVERFLOW
-#pragma GCC diagnostic pop
-#endif /* GCC_STRICT_OVERFLOW */
-
-# endif /* FLOATING_POINT */
-
-# ifdef PNG_FIXED_POINT_SUPPORTED
-/* Function to format a fixed point value in ASCII.
- */
-void /* PRIVATE */
-png_ascii_from_fixed(png_const_structrp png_ptr, png_charp ascii,
- size_t size, png_fixed_point fp)
-{
- /* Require space for 10 decimal digits, a decimal point, a minus sign and a
- * trailing \0, 13 characters:
- */
- if (size > 12)
- {
- png_uint_32 num;
-
- /* Avoid overflow here on the minimum integer. */
- if (fp < 0)
- {
- *ascii++ = 45; num = (png_uint_32)(-fp);
- }
- else
- num = (png_uint_32)fp;
-
- if (num <= 0x80000000) /* else overflowed */
- {
- unsigned int ndigits = 0, first = 16 /* flag value */;
- char digits[10];
-
- while (num)
- {
- /* Split the low digit off num: */
- unsigned int tmp = num/10;
- num -= tmp*10;
- digits[ndigits++] = (char)(48 + num);
- /* Record the first non-zero digit, note that this is a number
- * starting at 1, it's not actually the array index.
- */
- if (first == 16 && num > 0)
- first = ndigits;
- num = tmp;
- }
-
- if (ndigits > 0)
- {
- while (ndigits > 5) *ascii++ = digits[--ndigits];
- /* The remaining digits are fractional digits, ndigits is '5' or
- * smaller at this point. It is certainly not zero. Check for a
- * non-zero fractional digit:
- */
- if (first <= 5)
- {
- unsigned int i;
- *ascii++ = 46; /* decimal point */
- /* ndigits may be <5 for small numbers, output leading zeros
- * then ndigits digits to first:
- */
- i = 5;
- while (ndigits < i)
- {
- *ascii++ = 48; --i;
- }
- while (ndigits >= first) *ascii++ = digits[--ndigits];
- /* Don't output the trailing zeros! */
- }
- }
- else
- *ascii++ = 48;
-
- /* And null terminate the string: */
- *ascii = 0;
- return;
- }
- }
-
- /* Here on buffer too small. */
- png_error(png_ptr, "ASCII conversion buffer too small");
-}
-# endif /* FIXED_POINT */
-#endif /* SCAL */
-
-#if defined(PNG_FLOATING_POINT_SUPPORTED) && \
- !defined(PNG_FIXED_POINT_MACRO_SUPPORTED) && \
- (defined(PNG_gAMA_SUPPORTED) || defined(PNG_cHRM_SUPPORTED) || \
- defined(PNG_sCAL_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) || \
- defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)) || \
- (defined(PNG_sCAL_SUPPORTED) && \
- defined(PNG_FLOATING_ARITHMETIC_SUPPORTED))
-png_fixed_point
-png_fixed(png_const_structrp png_ptr, double fp, png_const_charp text)
-{
- double r = floor(100000 * fp + .5);
-
- if (r > 2147483647. || r < -2147483648.)
- png_fixed_error(png_ptr, text);
-
-# ifndef PNG_ERROR_TEXT_SUPPORTED
- PNG_UNUSED(text)
-# endif
-
- return (png_fixed_point)r;
-}
-#endif
-
-#if defined(PNG_GAMMA_SUPPORTED) || defined(PNG_COLORSPACE_SUPPORTED) ||\
- defined(PNG_INCH_CONVERSIONS_SUPPORTED) || defined(PNG_READ_pHYs_SUPPORTED)
-/* muldiv functions */
-/* This API takes signed arguments and rounds the result to the nearest
- * integer (or, for a fixed point number - the standard argument - to
- * the nearest .00001). Overflow and divide by zero are signalled in
- * the result, a boolean - true on success, false on overflow.
- */
-#if GCC_STRICT_OVERFLOW /* from above */
-/* It is not obvious which comparison below gets optimized in such a way that
- * signed overflow would change the result; looking through the code does not
- * reveal any tests which have the form GCC complains about, so presumably the
- * optimizer is moving an add or subtract into the 'if' somewhere.
- */
-#pragma GCC diagnostic push
-#pragma GCC diagnostic warning "-Wstrict-overflow=2"
-#endif /* GCC_STRICT_OVERFLOW */
-int
-png_muldiv(png_fixed_point_p res, png_fixed_point a, png_int_32 times,
- png_int_32 divisor)
-{
- /* Return a * times / divisor, rounded. */
- if (divisor != 0)
- {
- if (a == 0 || times == 0)
- {
- *res = 0;
- return 1;
- }
- else
- {
-#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
- double r = a;
- r *= times;
- r /= divisor;
- r = floor(r+.5);
-
- /* A png_fixed_point is a 32-bit integer. */
- if (r <= 2147483647. && r >= -2147483648.)
- {
- *res = (png_fixed_point)r;
- return 1;
- }
-#else
- int negative = 0;
- png_uint_32 A, T, D;
- png_uint_32 s16, s32, s00;
-
- if (a < 0)
- negative = 1, A = -a;
- else
- A = a;
-
- if (times < 0)
- negative = !negative, T = -times;
- else
- T = times;
-
- if (divisor < 0)
- negative = !negative, D = -divisor;
- else
- D = divisor;
-
- /* Following can't overflow because the arguments only
- * have 31 bits each, however the result may be 32 bits.
- */
- s16 = (A >> 16) * (T & 0xffff) +
- (A & 0xffff) * (T >> 16);
- /* Can't overflow because the a*times bit is only 30
- * bits at most.
- */
- s32 = (A >> 16) * (T >> 16) + (s16 >> 16);
- s00 = (A & 0xffff) * (T & 0xffff);
-
- s16 = (s16 & 0xffff) << 16;
- s00 += s16;
-
- if (s00 < s16)
- ++s32; /* carry */
-
- if (s32 < D) /* else overflow */
- {
- /* s32.s00 is now the 64-bit product, do a standard
- * division, we know that s32 < D, so the maximum
- * required shift is 31.
- */
- int bitshift = 32;
- png_fixed_point result = 0; /* NOTE: signed */
-
- while (--bitshift >= 0)
- {
- png_uint_32 d32, d00;
-
- if (bitshift > 0)
- d32 = D >> (32-bitshift), d00 = D << bitshift;
-
- else
- d32 = 0, d00 = D;
-
- if (s32 > d32)
- {
- if (s00 < d00) --s32; /* carry */
- s32 -= d32, s00 -= d00, result += 1<<bitshift;
- }
-
- else
- if (s32 == d32 && s00 >= d00)
- s32 = 0, s00 -= d00, result += 1<<bitshift;
- }
-
- /* Handle the rounding. */
- if (s00 >= (D >> 1))
- ++result;
-
- if (negative != 0)
- result = -result;
-
- /* Check for overflow. */
- if ((negative != 0 && result <= 0) ||
- (negative == 0 && result >= 0))
- {
- *res = result;
- return 1;
- }
- }
-#endif
- }
- }
-
- return 0;
-}
-#if GCC_STRICT_OVERFLOW
-#pragma GCC diagnostic pop
-#endif /* GCC_STRICT_OVERFLOW */
-#endif /* READ_GAMMA || INCH_CONVERSIONS */
-
-#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_INCH_CONVERSIONS_SUPPORTED)
-/* The following is for when the caller doesn't much care about the
- * result.
- */
-png_fixed_point
-png_muldiv_warn(png_const_structrp png_ptr, png_fixed_point a, png_int_32 times,
- png_int_32 divisor)
-{
- png_fixed_point result;
-
- if (png_muldiv(&result, a, times, divisor) != 0)
- return result;
-
- png_warning(png_ptr, "fixed point overflow ignored");
- return 0;
-}
-#endif
-
-#ifdef PNG_GAMMA_SUPPORTED /* more fixed point functions for gamma */
-/* Calculate a reciprocal, return 0 on div-by-zero or overflow. */
-png_fixed_point
-png_reciprocal(png_fixed_point a)
-{
-#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
- double r = floor(1E10/a+.5);
-
- if (r <= 2147483647. && r >= -2147483648.)
- return (png_fixed_point)r;
-#else
- png_fixed_point res;
-
- if (png_muldiv(&res, 100000, 100000, a) != 0)
- return res;
-#endif
-
- return 0; /* error/overflow */
-}
-
-/* This is the shared test on whether a gamma value is 'significant' - whether
- * it is worth doing gamma correction.
- */
-int /* PRIVATE */
-png_gamma_significant(png_fixed_point gamma_val)
-{
- return gamma_val < PNG_FP_1 - PNG_GAMMA_THRESHOLD_FIXED ||
- gamma_val > PNG_FP_1 + PNG_GAMMA_THRESHOLD_FIXED;
-}
-#endif
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
-#ifdef PNG_16BIT_SUPPORTED
-/* A local convenience routine. */
-static png_fixed_point
-png_product2(png_fixed_point a, png_fixed_point b)
-{
- /* The required result is 1/a * 1/b; the following preserves accuracy. */
-#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
- double r = a * 1E-5;
- r *= b;
- r = floor(r+.5);
-
- if (r <= 2147483647. && r >= -2147483648.)
- return (png_fixed_point)r;
-#else
- png_fixed_point res;
-
- if (png_muldiv(&res, a, b, 100000) != 0)
- return res;
-#endif
-
- return 0; /* overflow */
-}
-#endif /* 16BIT */
-
-/* The inverse of the above. */
-png_fixed_point
-png_reciprocal2(png_fixed_point a, png_fixed_point b)
-{
- /* The required result is 1/a * 1/b; the following preserves accuracy. */
-#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
- if (a != 0 && b != 0)
- {
- double r = 1E15/a;
- r /= b;
- r = floor(r+.5);
-
- if (r <= 2147483647. && r >= -2147483648.)
- return (png_fixed_point)r;
- }
-#else
- /* This may overflow because the range of png_fixed_point isn't symmetric,
- * but this API is only used for the product of file and screen gamma so it
- * doesn't matter that the smallest number it can produce is 1/21474, not
- * 1/100000
- */
- png_fixed_point res = png_product2(a, b);
-
- if (res != 0)
- return png_reciprocal(res);
-#endif
-
- return 0; /* overflow */
-}
-#endif /* READ_GAMMA */
-
-#ifdef PNG_READ_GAMMA_SUPPORTED /* gamma table code */
-#ifndef PNG_FLOATING_ARITHMETIC_SUPPORTED
-/* Fixed point gamma.
- *
- * The code to calculate the tables used below can be found in the shell script
- * contrib/tools/intgamma.sh
- *
- * To calculate gamma this code implements fast log() and exp() calls using only
- * fixed point arithmetic. This code has sufficient precision for either 8-bit
- * or 16-bit sample values.
- *
- * The tables used here were calculated using simple 'bc' programs, but C double
- * precision floating point arithmetic would work fine.
- *
- * 8-bit log table
- * This is a table of -log(value/255)/log(2) for 'value' in the range 128 to
- * 255, so it's the base 2 logarithm of a normalized 8-bit floating point
- * mantissa. The numbers are 32-bit fractions.
- */
-static const png_uint_32
-png_8bit_l2[128] =
-{
- 4270715492U, 4222494797U, 4174646467U, 4127164793U, 4080044201U, 4033279239U,
- 3986864580U, 3940795015U, 3895065449U, 3849670902U, 3804606499U, 3759867474U,
- 3715449162U, 3671346997U, 3627556511U, 3584073329U, 3540893168U, 3498011834U,
- 3455425220U, 3413129301U, 3371120137U, 3329393864U, 3287946700U, 3246774933U,
- 3205874930U, 3165243125U, 3124876025U, 3084770202U, 3044922296U, 3005329011U,
- 2965987113U, 2926893432U, 2888044853U, 2849438323U, 2811070844U, 2772939474U,
- 2735041326U, 2697373562U, 2659933400U, 2622718104U, 2585724991U, 2548951424U,
- 2512394810U, 2476052606U, 2439922311U, 2404001468U, 2368287663U, 2332778523U,
- 2297471715U, 2262364947U, 2227455964U, 2192742551U, 2158222529U, 2123893754U,
- 2089754119U, 2055801552U, 2022034013U, 1988449497U, 1955046031U, 1921821672U,
- 1888774511U, 1855902668U, 1823204291U, 1790677560U, 1758320682U, 1726131893U,
- 1694109454U, 1662251657U, 1630556815U, 1599023271U, 1567649391U, 1536433567U,
- 1505374214U, 1474469770U, 1443718700U, 1413119487U, 1382670639U, 1352370686U,
- 1322218179U, 1292211689U, 1262349810U, 1232631153U, 1203054352U, 1173618059U,
- 1144320946U, 1115161701U, 1086139034U, 1057251672U, 1028498358U, 999877854U,
- 971388940U, 943030410U, 914801076U, 886699767U, 858725327U, 830876614U,
- 803152505U, 775551890U, 748073672U, 720716771U, 693480120U, 666362667U,
- 639363374U, 612481215U, 585715177U, 559064263U, 532527486U, 506103872U,
- 479792461U, 453592303U, 427502463U, 401522014U, 375650043U, 349885648U,
- 324227938U, 298676034U, 273229066U, 247886176U, 222646516U, 197509248U,
- 172473545U, 147538590U, 122703574U, 97967701U, 73330182U, 48790236U,
- 24347096U, 0U
-
-#if 0
- /* The following are the values for 16-bit tables - these work fine for the
- * 8-bit conversions but produce very slightly larger errors in the 16-bit
- * log (about 1.2 as opposed to 0.7 absolute error in the final value). To
- * use these all the shifts below must be adjusted appropriately.
- */
- 65166, 64430, 63700, 62976, 62257, 61543, 60835, 60132, 59434, 58741, 58054,
- 57371, 56693, 56020, 55352, 54689, 54030, 53375, 52726, 52080, 51439, 50803,
- 50170, 49542, 48918, 48298, 47682, 47070, 46462, 45858, 45257, 44661, 44068,
- 43479, 42894, 42312, 41733, 41159, 40587, 40020, 39455, 38894, 38336, 37782,
- 37230, 36682, 36137, 35595, 35057, 34521, 33988, 33459, 32932, 32408, 31887,
- 31369, 30854, 30341, 29832, 29325, 28820, 28319, 27820, 27324, 26830, 26339,
- 25850, 25364, 24880, 24399, 23920, 23444, 22970, 22499, 22029, 21562, 21098,
- 20636, 20175, 19718, 19262, 18808, 18357, 17908, 17461, 17016, 16573, 16132,
- 15694, 15257, 14822, 14390, 13959, 13530, 13103, 12678, 12255, 11834, 11415,
- 10997, 10582, 10168, 9756, 9346, 8937, 8531, 8126, 7723, 7321, 6921, 6523,
- 6127, 5732, 5339, 4947, 4557, 4169, 3782, 3397, 3014, 2632, 2251, 1872, 1495,
- 1119, 744, 372
-#endif
-};
-
-static png_int_32
-png_log8bit(unsigned int x)
-{
- unsigned int lg2 = 0;
- /* Each time 'x' is multiplied by 2, 1 must be subtracted off the final log,
- * because the log is actually negate that means adding 1. The final
- * returned value thus has the range 0 (for 255 input) to 7.994 (for 1
- * input), return -1 for the overflow (log 0) case, - so the result is
- * always at most 19 bits.
- */
- if ((x &= 0xff) == 0)
- return -1;
-
- if ((x & 0xf0) == 0)
- lg2 = 4, x <<= 4;
-
- if ((x & 0xc0) == 0)
- lg2 += 2, x <<= 2;
-
- if ((x & 0x80) == 0)
- lg2 += 1, x <<= 1;
-
- /* result is at most 19 bits, so this cast is safe: */
- return (png_int_32)((lg2 << 16) + ((png_8bit_l2[x-128]+32768)>>16));
-}
-
-/* The above gives exact (to 16 binary places) log2 values for 8-bit images,
- * for 16-bit images we use the most significant 8 bits of the 16-bit value to
- * get an approximation then multiply the approximation by a correction factor
- * determined by the remaining up to 8 bits. This requires an additional step
- * in the 16-bit case.
- *
- * We want log2(value/65535), we have log2(v'/255), where:
- *
- * value = v' * 256 + v''
- * = v' * f
- *
- * So f is value/v', which is equal to (256+v''/v') since v' is in the range 128
- * to 255 and v'' is in the range 0 to 255 f will be in the range 256 to less
- * than 258. The final factor also needs to correct for the fact that our 8-bit
- * value is scaled by 255, whereas the 16-bit values must be scaled by 65535.
- *
- * This gives a final formula using a calculated value 'x' which is value/v' and
- * scaling by 65536 to match the above table:
- *
- * log2(x/257) * 65536
- *
- * Since these numbers are so close to '1' we can use simple linear
- * interpolation between the two end values 256/257 (result -368.61) and 258/257
- * (result 367.179). The values used below are scaled by a further 64 to give
- * 16-bit precision in the interpolation:
- *
- * Start (256): -23591
- * Zero (257): 0
- * End (258): 23499
- */
-#ifdef PNG_16BIT_SUPPORTED
-static png_int_32
-png_log16bit(png_uint_32 x)
-{
- unsigned int lg2 = 0;
-
- /* As above, but now the input has 16 bits. */
- if ((x &= 0xffff) == 0)
- return -1;
-
- if ((x & 0xff00) == 0)
- lg2 = 8, x <<= 8;
-
- if ((x & 0xf000) == 0)
- lg2 += 4, x <<= 4;
-
- if ((x & 0xc000) == 0)
- lg2 += 2, x <<= 2;
-
- if ((x & 0x8000) == 0)
- lg2 += 1, x <<= 1;
-
- /* Calculate the base logarithm from the top 8 bits as a 28-bit fractional
- * value.
- */
- lg2 <<= 28;
- lg2 += (png_8bit_l2[(x>>8)-128]+8) >> 4;
-
- /* Now we need to interpolate the factor, this requires a division by the top
- * 8 bits. Do this with maximum precision.
- */
- x = ((x << 16) + (x >> 9)) / (x >> 8);
-
- /* Since we divided by the top 8 bits of 'x' there will be a '1' at 1<<24,
- * the value at 1<<16 (ignoring this) will be 0 or 1; this gives us exactly
- * 16 bits to interpolate to get the low bits of the result. Round the
- * answer. Note that the end point values are scaled by 64 to retain overall
- * precision and that 'lg2' is current scaled by an extra 12 bits, so adjust
- * the overall scaling by 6-12. Round at every step.
- */
- x -= 1U << 24;
-
- if (x <= 65536U) /* <= '257' */
- lg2 += ((23591U * (65536U-x)) + (1U << (16+6-12-1))) >> (16+6-12);
-
- else
- lg2 -= ((23499U * (x-65536U)) + (1U << (16+6-12-1))) >> (16+6-12);
-
- /* Safe, because the result can't have more than 20 bits: */
- return (png_int_32)((lg2 + 2048) >> 12);
-}
-#endif /* 16BIT */
-
-/* The 'exp()' case must invert the above, taking a 20-bit fixed point
- * logarithmic value and returning a 16 or 8-bit number as appropriate. In
- * each case only the low 16 bits are relevant - the fraction - since the
- * integer bits (the top 4) simply determine a shift.
- *
- * The worst case is the 16-bit distinction between 65535 and 65534. This
- * requires perhaps spurious accuracy in the decoding of the logarithm to
- * distinguish log2(65535/65534.5) - 10^-5 or 17 bits. There is little chance
- * of getting this accuracy in practice.
- *
- * To deal with this the following exp() function works out the exponent of the
- * fractional part of the logarithm by using an accurate 32-bit value from the
- * top four fractional bits then multiplying in the remaining bits.
- */
-static const png_uint_32
-png_32bit_exp[16] =
-{
- /* NOTE: the first entry is deliberately set to the maximum 32-bit value. */
- 4294967295U, 4112874773U, 3938502376U, 3771522796U, 3611622603U, 3458501653U,
- 3311872529U, 3171459999U, 3037000500U, 2908241642U, 2784941738U, 2666869345U,
- 2553802834U, 2445529972U, 2341847524U, 2242560872U
-};
-
-/* Adjustment table; provided to explain the numbers in the code below. */
-#if 0
-for (i=11;i>=0;--i){ print i, " ", (1 - e(-(2^i)/65536*l(2))) * 2^(32-i), "\n"}
- 11 44937.64284865548751208448
- 10 45180.98734845585101160448
- 9 45303.31936980687359311872
- 8 45364.65110595323018870784
- 7 45395.35850361789624614912
- 6 45410.72259715102037508096
- 5 45418.40724413220722311168
- 4 45422.25021786898173001728
- 3 45424.17186732298419044352
- 2 45425.13273269940811464704
- 1 45425.61317555035558641664
- 0 45425.85339951654943850496
-#endif
-
-static png_uint_32
-png_exp(png_fixed_point x)
-{
- if (x > 0 && x <= 0xfffff) /* Else overflow or zero (underflow) */
- {
- /* Obtain a 4-bit approximation */
- png_uint_32 e = png_32bit_exp[(x >> 12) & 0x0f];
-
- /* Incorporate the low 12 bits - these decrease the returned value by
- * multiplying by a number less than 1 if the bit is set. The multiplier
- * is determined by the above table and the shift. Notice that the values
- * converge on 45426 and this is used to allow linear interpolation of the
- * low bits.
- */
- if (x & 0x800)
- e -= (((e >> 16) * 44938U) + 16U) >> 5;
-
- if (x & 0x400)
- e -= (((e >> 16) * 45181U) + 32U) >> 6;
-
- if (x & 0x200)
- e -= (((e >> 16) * 45303U) + 64U) >> 7;
-
- if (x & 0x100)
- e -= (((e >> 16) * 45365U) + 128U) >> 8;
-
- if (x & 0x080)
- e -= (((e >> 16) * 45395U) + 256U) >> 9;
-
- if (x & 0x040)
- e -= (((e >> 16) * 45410U) + 512U) >> 10;
-
- /* And handle the low 6 bits in a single block. */
- e -= (((e >> 16) * 355U * (x & 0x3fU)) + 256U) >> 9;
-
- /* Handle the upper bits of x. */
- e >>= x >> 16;
- return e;
- }
-
- /* Check for overflow */
- if (x <= 0)
- return png_32bit_exp[0];
-
- /* Else underflow */
- return 0;
-}
-
-static png_byte
-png_exp8bit(png_fixed_point lg2)
-{
- /* Get a 32-bit value: */
- png_uint_32 x = png_exp(lg2);
-
- /* Convert the 32-bit value to 0..255 by multiplying by 256-1. Note that the
- * second, rounding, step can't overflow because of the first, subtraction,
- * step.
- */
- x -= x >> 8;
- return (png_byte)(((x + 0x7fffffU) >> 24) & 0xff);
-}
-
-#ifdef PNG_16BIT_SUPPORTED
-static png_uint_16
-png_exp16bit(png_fixed_point lg2)
-{
- /* Get a 32-bit value: */
- png_uint_32 x = png_exp(lg2);
-
- /* Convert the 32-bit value to 0..65535 by multiplying by 65536-1: */
- x -= x >> 16;
- return (png_uint_16)((x + 32767U) >> 16);
-}
-#endif /* 16BIT */
-#endif /* FLOATING_ARITHMETIC */
-
-png_byte
-png_gamma_8bit_correct(unsigned int value, png_fixed_point gamma_val)
-{
- if (value > 0 && value < 255)
- {
-# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
- /* 'value' is unsigned, ANSI-C90 requires the compiler to correctly
- * convert this to a floating point value. This includes values that
- * would overflow if 'value' were to be converted to 'int'.
- *
- * Apparently GCC, however, does an intermediate conversion to (int)
- * on some (ARM) but not all (x86) platforms, possibly because of
- * hardware FP limitations. (E.g. if the hardware conversion always
- * assumes the integer register contains a signed value.) This results
- * in ANSI-C undefined behavior for large values.
- *
- * Other implementations on the same machine might actually be ANSI-C90
- * conformant and therefore compile spurious extra code for the large
- * values.
- *
- * We can be reasonably sure that an unsigned to float conversion
- * won't be faster than an int to float one. Therefore this code
- * assumes responsibility for the undefined behavior, which it knows
- * can't happen because of the check above.
- *
- * Note the argument to this routine is an (unsigned int) because, on
- * 16-bit platforms, it is assigned a value which might be out of
- * range for an (int); that would result in undefined behavior in the
- * caller if the *argument* ('value') were to be declared (int).
- */
- double r = floor(255*pow((int)/*SAFE*/value/255.,gamma_val*.00001)+.5);
- return (png_byte)r;
-# else
- png_int_32 lg2 = png_log8bit(value);
- png_fixed_point res;
-
- if (png_muldiv(&res, gamma_val, lg2, PNG_FP_1) != 0)
- return png_exp8bit(res);
-
- /* Overflow. */
- value = 0;
-# endif
- }
-
- return (png_byte)(value & 0xff);
-}
-
-#ifdef PNG_16BIT_SUPPORTED
-png_uint_16
-png_gamma_16bit_correct(unsigned int value, png_fixed_point gamma_val)
-{
- if (value > 0 && value < 65535)
- {
-# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
- /* The same (unsigned int)->(double) constraints apply here as above,
- * however in this case the (unsigned int) to (int) conversion can
- * overflow on an ANSI-C90 compliant system so the cast needs to ensure
- * that this is not possible.
- */
- double r = floor(65535*pow((png_int_32)value/65535.,
- gamma_val*.00001)+.5);
- return (png_uint_16)r;
-# else
- png_int_32 lg2 = png_log16bit(value);
- png_fixed_point res;
-
- if (png_muldiv(&res, gamma_val, lg2, PNG_FP_1) != 0)
- return png_exp16bit(res);
-
- /* Overflow. */
- value = 0;
-# endif
- }
-
- return (png_uint_16)value;
-}
-#endif /* 16BIT */
-
-/* This does the right thing based on the bit_depth field of the
- * png_struct, interpreting values as 8-bit or 16-bit. While the result
- * is nominally a 16-bit value if bit depth is 8 then the result is
- * 8-bit (as are the arguments.)
- */
-png_uint_16 /* PRIVATE */
-png_gamma_correct(png_structrp png_ptr, unsigned int value,
- png_fixed_point gamma_val)
-{
- if (png_ptr->bit_depth == 8)
- return png_gamma_8bit_correct(value, gamma_val);
-
-#ifdef PNG_16BIT_SUPPORTED
- else
- return png_gamma_16bit_correct(value, gamma_val);
-#else
- /* should not reach this */
- return 0;
-#endif /* 16BIT */
-}
-
-#ifdef PNG_16BIT_SUPPORTED
-/* Internal function to build a single 16-bit table - the table consists of
- * 'num' 256 entry subtables, where 'num' is determined by 'shift' - the amount
- * to shift the input values right (or 16-number_of_signifiant_bits).
- *
- * The caller is responsible for ensuring that the table gets cleaned up on
- * png_error (i.e. if one of the mallocs below fails) - i.e. the *table argument
- * should be somewhere that will be cleaned.
- */
-static void
-png_build_16bit_table(png_structrp png_ptr, png_uint_16pp *ptable,
- unsigned int shift, png_fixed_point gamma_val)
-{
- /* Various values derived from 'shift': */
- unsigned int num = 1U << (8U - shift);
-#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
- /* CSE the division and work round wacky GCC warnings (see the comments
- * in png_gamma_8bit_correct for where these come from.)
- */
- double fmax = 1.0 / (((png_int_32)1 << (16U - shift)) - 1);
-#endif
- unsigned int max = (1U << (16U - shift)) - 1U;
- unsigned int max_by_2 = 1U << (15U - shift);
- unsigned int i;
-
- png_uint_16pp table = *ptable =
- (png_uint_16pp)png_calloc(png_ptr, num * (sizeof (png_uint_16p)));
-
- for (i = 0; i < num; i++)
- {
- png_uint_16p sub_table = table[i] =
- (png_uint_16p)png_malloc(png_ptr, 256 * (sizeof (png_uint_16)));
-
- /* The 'threshold' test is repeated here because it can arise for one of
- * the 16-bit tables even if the others don't hit it.
- */
- if (png_gamma_significant(gamma_val) != 0)
- {
- /* The old code would overflow at the end and this would cause the
- * 'pow' function to return a result >1, resulting in an
- * arithmetic error. This code follows the spec exactly; ig is
- * the recovered input sample, it always has 8-16 bits.
- *
- * We want input * 65535/max, rounded, the arithmetic fits in 32
- * bits (unsigned) so long as max <= 32767.
- */
- unsigned int j;
- for (j = 0; j < 256; j++)
- {
- png_uint_32 ig = (j << (8-shift)) + i;
-# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
- /* Inline the 'max' scaling operation: */
- /* See png_gamma_8bit_correct for why the cast to (int) is
- * required here.
- */
- double d = floor(65535.*pow(ig*fmax, gamma_val*.00001)+.5);
- sub_table[j] = (png_uint_16)d;
-# else
- if (shift != 0)
- ig = (ig * 65535U + max_by_2)/max;
-
- sub_table[j] = png_gamma_16bit_correct(ig, gamma_val);
-# endif
- }
- }
- else
- {
- /* We must still build a table, but do it the fast way. */
- unsigned int j;
-
- for (j = 0; j < 256; j++)
- {
- png_uint_32 ig = (j << (8-shift)) + i;
-
- if (shift != 0)
- ig = (ig * 65535U + max_by_2)/max;
-
- sub_table[j] = (png_uint_16)ig;
- }
- }
- }
-}
-
-/* NOTE: this function expects the *inverse* of the overall gamma transformation
- * required.
- */
-static void
-png_build_16to8_table(png_structrp png_ptr, png_uint_16pp *ptable,
- unsigned int shift, png_fixed_point gamma_val)
-{
- unsigned int num = 1U << (8U - shift);
- unsigned int max = (1U << (16U - shift))-1U;
- unsigned int i;
- png_uint_32 last;
-
- png_uint_16pp table = *ptable =
- (png_uint_16pp)png_calloc(png_ptr, num * (sizeof (png_uint_16p)));
-
- /* 'num' is the number of tables and also the number of low bits of low
- * bits of the input 16-bit value used to select a table. Each table is
- * itself indexed by the high 8 bits of the value.
- */
- for (i = 0; i < num; i++)
- table[i] = (png_uint_16p)png_malloc(png_ptr,
- 256 * (sizeof (png_uint_16)));
-
- /* 'gamma_val' is set to the reciprocal of the value calculated above, so
- * pow(out,g) is an *input* value. 'last' is the last input value set.
- *
- * In the loop 'i' is used to find output values. Since the output is
- * 8-bit there are only 256 possible values. The tables are set up to
- * select the closest possible output value for each input by finding
- * the input value at the boundary between each pair of output values
- * and filling the table up to that boundary with the lower output
- * value.
- *
- * The boundary values are 0.5,1.5..253.5,254.5. Since these are 9-bit
- * values the code below uses a 16-bit value in i; the values start at
- * 128.5 (for 0.5) and step by 257, for a total of 254 values (the last
- * entries are filled with 255). Start i at 128 and fill all 'last'
- * table entries <= 'max'
- */
- last = 0;
- for (i = 0; i < 255; ++i) /* 8-bit output value */
- {
- /* Find the corresponding maximum input value */
- png_uint_16 out = (png_uint_16)(i * 257U); /* 16-bit output value */
-
- /* Find the boundary value in 16 bits: */
- png_uint_32 bound = png_gamma_16bit_correct(out+128U, gamma_val);
-
- /* Adjust (round) to (16-shift) bits: */
- bound = (bound * max + 32768U)/65535U + 1U;
-
- while (last < bound)
- {
- table[last & (0xffU >> shift)][last >> (8U - shift)] = out;
- last++;
- }
- }
-
- /* And fill in the final entries. */
- while (last < (num << 8))
- {
- table[last & (0xff >> shift)][last >> (8U - shift)] = 65535U;
- last++;
- }
-}
-#endif /* 16BIT */
-
-/* Build a single 8-bit table: same as the 16-bit case but much simpler (and
- * typically much faster). Note that libpng currently does no sBIT processing
- * (apparently contrary to the spec) so a 256-entry table is always generated.
- */
-static void
-png_build_8bit_table(png_structrp png_ptr, png_bytepp ptable,
- png_fixed_point gamma_val)
-{
- unsigned int i;
- png_bytep table = *ptable = (png_bytep)png_malloc(png_ptr, 256);
-
- if (png_gamma_significant(gamma_val) != 0)
- for (i=0; i<256; i++)
- table[i] = png_gamma_8bit_correct(i, gamma_val);
-
- else
- for (i=0; i<256; ++i)
- table[i] = (png_byte)(i & 0xff);
-}
-
-/* Used from png_read_destroy and below to release the memory used by the gamma
- * tables.
- */
-void /* PRIVATE */
-png_destroy_gamma_table(png_structrp png_ptr)
-{
- png_free(png_ptr, png_ptr->gamma_table);
- png_ptr->gamma_table = NULL;
-
-#ifdef PNG_16BIT_SUPPORTED
- if (png_ptr->gamma_16_table != NULL)
- {
- int i;
- int istop = (1 << (8 - png_ptr->gamma_shift));
- for (i = 0; i < istop; i++)
- {
- png_free(png_ptr, png_ptr->gamma_16_table[i]);
- }
- png_free(png_ptr, png_ptr->gamma_16_table);
- png_ptr->gamma_16_table = NULL;
- }
-#endif /* 16BIT */
-
-#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \
- defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \
- defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)
- png_free(png_ptr, png_ptr->gamma_from_1);
- png_ptr->gamma_from_1 = NULL;
- png_free(png_ptr, png_ptr->gamma_to_1);
- png_ptr->gamma_to_1 = NULL;
-
-#ifdef PNG_16BIT_SUPPORTED
- if (png_ptr->gamma_16_from_1 != NULL)
- {
- int i;
- int istop = (1 << (8 - png_ptr->gamma_shift));
- for (i = 0; i < istop; i++)
- {
- png_free(png_ptr, png_ptr->gamma_16_from_1[i]);
- }
- png_free(png_ptr, png_ptr->gamma_16_from_1);
- png_ptr->gamma_16_from_1 = NULL;
- }
- if (png_ptr->gamma_16_to_1 != NULL)
- {
- int i;
- int istop = (1 << (8 - png_ptr->gamma_shift));
- for (i = 0; i < istop; i++)
- {
- png_free(png_ptr, png_ptr->gamma_16_to_1[i]);
- }
- png_free(png_ptr, png_ptr->gamma_16_to_1);
- png_ptr->gamma_16_to_1 = NULL;
- }
-#endif /* 16BIT */
-#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */
-}
-
-/* We build the 8- or 16-bit gamma tables here. Note that for 16-bit
- * tables, we don't make a full table if we are reducing to 8-bit in
- * the future. Note also how the gamma_16 tables are segmented so that
- * we don't need to allocate > 64K chunks for a full 16-bit table.
- */
-void /* PRIVATE */
-png_build_gamma_table(png_structrp png_ptr, int bit_depth)
-{
- png_debug(1, "in png_build_gamma_table");
-
- /* Remove any existing table; this copes with multiple calls to
- * png_read_update_info. The warning is because building the gamma tables
- * multiple times is a performance hit - it's harmless but the ability to
- * call png_read_update_info() multiple times is new in 1.5.6 so it seems
- * sensible to warn if the app introduces such a hit.
- */
- if (png_ptr->gamma_table != NULL || png_ptr->gamma_16_table != NULL)
- {
- png_warning(png_ptr, "gamma table being rebuilt");
- png_destroy_gamma_table(png_ptr);
- }
-
- if (bit_depth <= 8)
- {
- png_build_8bit_table(png_ptr, &png_ptr->gamma_table,
- png_ptr->screen_gamma > 0 ?
- png_reciprocal2(png_ptr->colorspace.gamma,
- png_ptr->screen_gamma) : PNG_FP_1);
-
-#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \
- defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \
- defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)
- if ((png_ptr->transformations & (PNG_COMPOSE | PNG_RGB_TO_GRAY)) != 0)
- {
- png_build_8bit_table(png_ptr, &png_ptr->gamma_to_1,
- png_reciprocal(png_ptr->colorspace.gamma));
-
- png_build_8bit_table(png_ptr, &png_ptr->gamma_from_1,
- png_ptr->screen_gamma > 0 ?
- png_reciprocal(png_ptr->screen_gamma) :
- png_ptr->colorspace.gamma/* Probably doing rgb_to_gray */);
- }
-#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */
- }
-#ifdef PNG_16BIT_SUPPORTED
- else
- {
- png_byte shift, sig_bit;
-
- if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) != 0)
- {
- sig_bit = png_ptr->sig_bit.red;
-
- if (png_ptr->sig_bit.green > sig_bit)
- sig_bit = png_ptr->sig_bit.green;
-
- if (png_ptr->sig_bit.blue > sig_bit)
- sig_bit = png_ptr->sig_bit.blue;
- }
- else
- sig_bit = png_ptr->sig_bit.gray;
-
- /* 16-bit gamma code uses this equation:
- *
- * ov = table[(iv & 0xff) >> gamma_shift][iv >> 8]
- *
- * Where 'iv' is the input color value and 'ov' is the output value -
- * pow(iv, gamma).
- *
- * Thus the gamma table consists of up to 256 256-entry tables. The table
- * is selected by the (8-gamma_shift) most significant of the low 8 bits
- * of the color value then indexed by the upper 8 bits:
- *
- * table[low bits][high 8 bits]
- *
- * So the table 'n' corresponds to all those 'iv' of:
- *
- * <all high 8-bit values><n << gamma_shift>..<(n+1 << gamma_shift)-1>
- *
- */
- if (sig_bit > 0 && sig_bit < 16U)
- /* shift == insignificant bits */
- shift = (png_byte)((16U - sig_bit) & 0xff);
-
- else
- shift = 0; /* keep all 16 bits */
-
- if ((png_ptr->transformations & (PNG_16_TO_8 | PNG_SCALE_16_TO_8)) != 0)
- {
- /* PNG_MAX_GAMMA_8 is the number of bits to keep - effectively
- * the significant bits in the *input* when the output will
- * eventually be 8 bits. By default it is 11.
- */
- if (shift < (16U - PNG_MAX_GAMMA_8))
- shift = (16U - PNG_MAX_GAMMA_8);
- }
-
- if (shift > 8U)
- shift = 8U; /* Guarantees at least one table! */
-
- png_ptr->gamma_shift = shift;
-
- /* NOTE: prior to 1.5.4 this test used to include PNG_BACKGROUND (now
- * PNG_COMPOSE). This effectively smashed the background calculation for
- * 16-bit output because the 8-bit table assumes the result will be
- * reduced to 8 bits.
- */
- if ((png_ptr->transformations & (PNG_16_TO_8 | PNG_SCALE_16_TO_8)) != 0)
- png_build_16to8_table(png_ptr, &png_ptr->gamma_16_table, shift,
- png_ptr->screen_gamma > 0 ? png_product2(png_ptr->colorspace.gamma,
- png_ptr->screen_gamma) : PNG_FP_1);
-
- else
- png_build_16bit_table(png_ptr, &png_ptr->gamma_16_table, shift,
- png_ptr->screen_gamma > 0 ? png_reciprocal2(png_ptr->colorspace.gamma,
- png_ptr->screen_gamma) : PNG_FP_1);
-
-#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \
- defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \
- defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)
- if ((png_ptr->transformations & (PNG_COMPOSE | PNG_RGB_TO_GRAY)) != 0)
- {
- png_build_16bit_table(png_ptr, &png_ptr->gamma_16_to_1, shift,
- png_reciprocal(png_ptr->colorspace.gamma));
-
- /* Notice that the '16 from 1' table should be full precision, however
- * the lookup on this table still uses gamma_shift, so it can't be.
- * TODO: fix this.
- */
- png_build_16bit_table(png_ptr, &png_ptr->gamma_16_from_1, shift,
- png_ptr->screen_gamma > 0 ? png_reciprocal(png_ptr->screen_gamma) :
- png_ptr->colorspace.gamma/* Probably doing rgb_to_gray */);
- }
-#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */
- }
-#endif /* 16BIT */
-}
-#endif /* READ_GAMMA */
-
-/* HARDWARE OR SOFTWARE OPTION SUPPORT */
-#ifdef PNG_SET_OPTION_SUPPORTED
-int PNGAPI
-png_set_option(png_structrp png_ptr, int option, int onoff)
-{
- if (png_ptr != NULL && option >= 0 && option < PNG_OPTION_NEXT &&
- (option & 1) == 0)
- {
- png_uint_32 mask = 3U << option;
- png_uint_32 setting = (2U + (onoff != 0)) << option;
- png_uint_32 current = png_ptr->options;
-
- png_ptr->options = (png_uint_32)((current & ~mask) | setting);
-
- return (int)(current & mask) >> option;
- }
-
- return PNG_OPTION_INVALID;
-}
-#endif
-
-/* sRGB support */
-#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) ||\
- defined(PNG_SIMPLIFIED_WRITE_SUPPORTED)
-/* sRGB conversion tables; these are machine generated with the code in
- * contrib/tools/makesRGB.c. The actual sRGB transfer curve defined in the
- * specification (see the article at https://en.wikipedia.org/wiki/SRGB)
- * is used, not the gamma=1/2.2 approximation use elsewhere in libpng.
- * The sRGB to linear table is exact (to the nearest 16-bit linear fraction).
- * The inverse (linear to sRGB) table has accuracies as follows:
- *
- * For all possible (255*65535+1) input values:
- *
- * error: -0.515566 - 0.625971, 79441 (0.475369%) of readings inexact
- *
- * For the input values corresponding to the 65536 16-bit values:
- *
- * error: -0.513727 - 0.607759, 308 (0.469978%) of readings inexact
- *
- * In all cases the inexact readings are only off by one.
- */
-
-#ifdef PNG_SIMPLIFIED_READ_SUPPORTED
-/* The convert-to-sRGB table is only currently required for read. */
-const png_uint_16 png_sRGB_table[256] =
-{
- 0,20,40,60,80,99,119,139,
- 159,179,199,219,241,264,288,313,
- 340,367,396,427,458,491,526,562,
- 599,637,677,718,761,805,851,898,
- 947,997,1048,1101,1156,1212,1270,1330,
- 1391,1453,1517,1583,1651,1720,1790,1863,
- 1937,2013,2090,2170,2250,2333,2418,2504,
- 2592,2681,2773,2866,2961,3058,3157,3258,
- 3360,3464,3570,3678,3788,3900,4014,4129,
- 4247,4366,4488,4611,4736,4864,4993,5124,
- 5257,5392,5530,5669,5810,5953,6099,6246,
- 6395,6547,6700,6856,7014,7174,7335,7500,
- 7666,7834,8004,8177,8352,8528,8708,8889,
- 9072,9258,9445,9635,9828,10022,10219,10417,
- 10619,10822,11028,11235,11446,11658,11873,12090,
- 12309,12530,12754,12980,13209,13440,13673,13909,
- 14146,14387,14629,14874,15122,15371,15623,15878,
- 16135,16394,16656,16920,17187,17456,17727,18001,
- 18277,18556,18837,19121,19407,19696,19987,20281,
- 20577,20876,21177,21481,21787,22096,22407,22721,
- 23038,23357,23678,24002,24329,24658,24990,25325,
- 25662,26001,26344,26688,27036,27386,27739,28094,
- 28452,28813,29176,29542,29911,30282,30656,31033,
- 31412,31794,32179,32567,32957,33350,33745,34143,
- 34544,34948,35355,35764,36176,36591,37008,37429,
- 37852,38278,38706,39138,39572,40009,40449,40891,
- 41337,41785,42236,42690,43147,43606,44069,44534,
- 45002,45473,45947,46423,46903,47385,47871,48359,
- 48850,49344,49841,50341,50844,51349,51858,52369,
- 52884,53401,53921,54445,54971,55500,56032,56567,
- 57105,57646,58190,58737,59287,59840,60396,60955,
- 61517,62082,62650,63221,63795,64372,64952,65535
-};
-#endif /* SIMPLIFIED_READ */
-
-/* The base/delta tables are required for both read and write (but currently
- * only the simplified versions.)
- */
-const png_uint_16 png_sRGB_base[512] =
-{
- 128,1782,3383,4644,5675,6564,7357,8074,
- 8732,9346,9921,10463,10977,11466,11935,12384,
- 12816,13233,13634,14024,14402,14769,15125,15473,
- 15812,16142,16466,16781,17090,17393,17690,17981,
- 18266,18546,18822,19093,19359,19621,19879,20133,
- 20383,20630,20873,21113,21349,21583,21813,22041,
- 22265,22487,22707,22923,23138,23350,23559,23767,
- 23972,24175,24376,24575,24772,24967,25160,25352,
- 25542,25730,25916,26101,26284,26465,26645,26823,
- 27000,27176,27350,27523,27695,27865,28034,28201,
- 28368,28533,28697,28860,29021,29182,29341,29500,
- 29657,29813,29969,30123,30276,30429,30580,30730,
- 30880,31028,31176,31323,31469,31614,31758,31902,
- 32045,32186,32327,32468,32607,32746,32884,33021,
- 33158,33294,33429,33564,33697,33831,33963,34095,
- 34226,34357,34486,34616,34744,34873,35000,35127,
- 35253,35379,35504,35629,35753,35876,35999,36122,
- 36244,36365,36486,36606,36726,36845,36964,37083,
- 37201,37318,37435,37551,37668,37783,37898,38013,
- 38127,38241,38354,38467,38580,38692,38803,38915,
- 39026,39136,39246,39356,39465,39574,39682,39790,
- 39898,40005,40112,40219,40325,40431,40537,40642,
- 40747,40851,40955,41059,41163,41266,41369,41471,
- 41573,41675,41777,41878,41979,42079,42179,42279,
- 42379,42478,42577,42676,42775,42873,42971,43068,
- 43165,43262,43359,43456,43552,43648,43743,43839,
- 43934,44028,44123,44217,44311,44405,44499,44592,
- 44685,44778,44870,44962,45054,45146,45238,45329,
- 45420,45511,45601,45692,45782,45872,45961,46051,
- 46140,46229,46318,46406,46494,46583,46670,46758,
- 46846,46933,47020,47107,47193,47280,47366,47452,
- 47538,47623,47709,47794,47879,47964,48048,48133,
- 48217,48301,48385,48468,48552,48635,48718,48801,
- 48884,48966,49048,49131,49213,49294,49376,49458,
- 49539,49620,49701,49782,49862,49943,50023,50103,
- 50183,50263,50342,50422,50501,50580,50659,50738,
- 50816,50895,50973,51051,51129,51207,51285,51362,
- 51439,51517,51594,51671,51747,51824,51900,51977,
- 52053,52129,52205,52280,52356,52432,52507,52582,
- 52657,52732,52807,52881,52956,53030,53104,53178,
- 53252,53326,53400,53473,53546,53620,53693,53766,
- 53839,53911,53984,54056,54129,54201,54273,54345,
- 54417,54489,54560,54632,54703,54774,54845,54916,
- 54987,55058,55129,55199,55269,55340,55410,55480,
- 55550,55620,55689,55759,55828,55898,55967,56036,
- 56105,56174,56243,56311,56380,56448,56517,56585,
- 56653,56721,56789,56857,56924,56992,57059,57127,
- 57194,57261,57328,57395,57462,57529,57595,57662,
- 57728,57795,57861,57927,57993,58059,58125,58191,
- 58256,58322,58387,58453,58518,58583,58648,58713,
- 58778,58843,58908,58972,59037,59101,59165,59230,
- 59294,59358,59422,59486,59549,59613,59677,59740,
- 59804,59867,59930,59993,60056,60119,60182,60245,
- 60308,60370,60433,60495,60558,60620,60682,60744,
- 60806,60868,60930,60992,61054,61115,61177,61238,
- 61300,61361,61422,61483,61544,61605,61666,61727,
- 61788,61848,61909,61969,62030,62090,62150,62211,
- 62271,62331,62391,62450,62510,62570,62630,62689,
- 62749,62808,62867,62927,62986,63045,63104,63163,
- 63222,63281,63340,63398,63457,63515,63574,63632,
- 63691,63749,63807,63865,63923,63981,64039,64097,
- 64155,64212,64270,64328,64385,64443,64500,64557,
- 64614,64672,64729,64786,64843,64900,64956,65013,
- 65070,65126,65183,65239,65296,65352,65409,65465
-};
-
-const png_byte png_sRGB_delta[512] =
-{
- 207,201,158,129,113,100,90,82,77,72,68,64,61,59,56,54,
- 52,50,49,47,46,45,43,42,41,40,39,39,38,37,36,36,
- 35,34,34,33,33,32,32,31,31,30,30,30,29,29,28,28,
- 28,27,27,27,27,26,26,26,25,25,25,25,24,24,24,24,
- 23,23,23,23,23,22,22,22,22,22,22,21,21,21,21,21,
- 21,20,20,20,20,20,20,20,20,19,19,19,19,19,19,19,
- 19,18,18,18,18,18,18,18,18,18,18,17,17,17,17,17,
- 17,17,17,17,17,17,16,16,16,16,16,16,16,16,16,16,
- 16,16,16,16,15,15,15,15,15,15,15,15,15,15,15,15,
- 15,15,15,15,14,14,14,14,14,14,14,14,14,14,14,14,
- 14,14,14,14,14,14,14,13,13,13,13,13,13,13,13,13,
- 13,13,13,13,13,13,13,13,13,13,13,13,13,13,12,12,
- 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,
- 12,12,12,12,12,12,12,12,12,12,12,12,11,11,11,11,
- 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,
- 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,
- 11,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,
- 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,
- 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,
- 10,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
- 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
- 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
- 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
- 9,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
- 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
- 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
- 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
- 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
- 8,8,8,8,8,8,8,8,8,7,7,7,7,7,7,7,
- 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
- 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
- 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7
-};
-#endif /* SIMPLIFIED READ/WRITE sRGB support */
-
-/* SIMPLIFIED READ/WRITE SUPPORT */
-#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) ||\
- defined(PNG_SIMPLIFIED_WRITE_SUPPORTED)
-static int
-png_image_free_function(png_voidp argument)
-{
- png_imagep image = png_voidcast(png_imagep, argument);
- png_controlp cp = image->opaque;
- png_control c;
-
- /* Double check that we have a png_ptr - it should be impossible to get here
- * without one.
- */
- if (cp->png_ptr == NULL)
- return 0;
-
- /* First free any data held in the control structure. */
-# ifdef PNG_STDIO_SUPPORTED
- if (cp->owned_file != 0)
- {
- FILE *fp = png_voidcast(FILE*, cp->png_ptr->io_ptr);
- cp->owned_file = 0;
-
- /* Ignore errors here. */
- if (fp != NULL)
- {
- cp->png_ptr->io_ptr = NULL;
- (void)fclose(fp);
- }
- }
-# endif
-
- /* Copy the control structure so that the original, allocated, version can be
- * safely freed. Notice that a png_error here stops the remainder of the
- * cleanup, but this is probably fine because that would indicate bad memory
- * problems anyway.
- */
- c = *cp;
- image->opaque = &c;
- png_free(c.png_ptr, cp);
-
- /* Then the structures, calling the correct API. */
- if (c.for_write != 0)
- {
-# ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED
- png_destroy_write_struct(&c.png_ptr, &c.info_ptr);
-# else
- png_error(c.png_ptr, "simplified write not supported");
-# endif
- }
- else
- {
-# ifdef PNG_SIMPLIFIED_READ_SUPPORTED
- png_destroy_read_struct(&c.png_ptr, &c.info_ptr, NULL);
-# else
- png_error(c.png_ptr, "simplified read not supported");
-# endif
- }
-
- /* Success. */
- return 1;
-}
-
-void PNGAPI
-png_image_free(png_imagep image)
-{
- /* Safely call the real function, but only if doing so is safe at this point
- * (if not inside an error handling context). Otherwise assume
- * png_safe_execute will call this API after the return.
- */
- if (image != NULL && image->opaque != NULL &&
- image->opaque->error_buf == NULL)
- {
- png_image_free_function(image);
- image->opaque = NULL;
- }
-}
-
-int /* PRIVATE */
-png_image_error(png_imagep image, png_const_charp error_message)
-{
- /* Utility to log an error. */
- png_safecat(image->message, (sizeof image->message), 0, error_message);
- image->warning_or_error |= PNG_IMAGE_ERROR;
- png_image_free(image);
- return 0;
-}
-
-#endif /* SIMPLIFIED READ/WRITE */
-#endif /* READ || WRITE */
diff --git a/3rdparty/libpng/libpng-1.6.37/png.h b/3rdparty/libpng/libpng-1.6.37/png.h
deleted file mode 100644
index 139eb0d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/png.h
+++ /dev/null
@@ -1,3247 +0,0 @@
-
-/* png.h - header file for PNG reference library
- *
- * libpng version 1.6.37 - April 14, 2019
- *
- * Copyright (c) 2018-2019 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license. (See LICENSE, below.)
- *
- * Authors and maintainers:
- * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
- * libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger
- * libpng versions 0.97, January 1998, through 1.6.35, July 2018:
- * Glenn Randers-Pehrson
- * libpng versions 1.6.36, December 2018, through 1.6.37, April 2019:
- * Cosmin Truta
- * See also "Contributing Authors", below.
- */
-
-/*
- * COPYRIGHT NOTICE, DISCLAIMER, and LICENSE
- * =========================================
- *
- * PNG Reference Library License version 2
- * ---------------------------------------
- *
- * * Copyright (c) 1995-2019 The PNG Reference Library Authors.
- * * Copyright (c) 2018-2019 Cosmin Truta.
- * * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
- * * Copyright (c) 1996-1997 Andreas Dilger.
- * * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * The software is supplied "as is", without warranty of any kind,
- * express or implied, including, without limitation, the warranties
- * of merchantability, fitness for a particular purpose, title, and
- * non-infringement. In no event shall the Copyright owners, or
- * anyone distributing the software, be liable for any damages or
- * other liability, whether in contract, tort or otherwise, arising
- * from, out of, or in connection with the software, or the use or
- * other dealings in the software, even if advised of the possibility
- * of such damage.
- *
- * Permission is hereby granted to use, copy, modify, and distribute
- * this software, or portions hereof, for any purpose, without fee,
- * subject to the following restrictions:
- *
- * 1. The origin of this software must not be misrepresented; you
- * must not claim that you wrote the original software. If you
- * use this software in a product, an acknowledgment in the product
- * documentation would be appreciated, but is not required.
- *
- * 2. Altered source versions must be plainly marked as such, and must
- * not be misrepresented as being the original software.
- *
- * 3. This Copyright notice may not be removed or altered from any
- * source or altered source distribution.
- *
- *
- * PNG Reference Library License version 1 (for libpng 0.5 through 1.6.35)
- * -----------------------------------------------------------------------
- *
- * libpng versions 1.0.7, July 1, 2000, through 1.6.35, July 15, 2018 are
- * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson, are
- * derived from libpng-1.0.6, and are distributed according to the same
- * disclaimer and license as libpng-1.0.6 with the following individuals
- * added to the list of Contributing Authors:
- *
- * Simon-Pierre Cadieux
- * Eric S. Raymond
- * Mans Rullgard
- * Cosmin Truta
- * Gilles Vollant
- * James Yu
- * Mandar Sahastrabuddhe
- * Google Inc.
- * Vadim Barkov
- *
- * and with the following additions to the disclaimer:
- *
- * There is no warranty against interference with your enjoyment of
- * the library or against infringement. There is no warranty that our
- * efforts or the library will fulfill any of your particular purposes
- * or needs. This library is provided with all faults, and the entire
- * risk of satisfactory quality, performance, accuracy, and effort is
- * with the user.
- *
- * Some files in the "contrib" directory and some configure-generated
- * files that are distributed with libpng have other copyright owners, and
- * are released under other open source licenses.
- *
- * libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
- * Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from
- * libpng-0.96, and are distributed according to the same disclaimer and
- * license as libpng-0.96, with the following individuals added to the
- * list of Contributing Authors:
- *
- * Tom Lane
- * Glenn Randers-Pehrson
- * Willem van Schaik
- *
- * libpng versions 0.89, June 1996, through 0.96, May 1997, are
- * Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88,
- * and are distributed according to the same disclaimer and license as
- * libpng-0.88, with the following individuals added to the list of
- * Contributing Authors:
- *
- * John Bowler
- * Kevin Bracey
- * Sam Bushell
- * Magnus Holmgren
- * Greg Roelofs
- * Tom Tanner
- *
- * Some files in the "scripts" directory have other copyright owners,
- * but are released under this license.
- *
- * libpng versions 0.5, May 1995, through 0.88, January 1996, are
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * For the purposes of this copyright and license, "Contributing Authors"
- * is defined as the following set of individuals:
- *
- * Andreas Dilger
- * Dave Martindale
- * Guy Eric Schalnat
- * Paul Schmidt
- * Tim Wegner
- *
- * The PNG Reference Library is supplied "AS IS". The Contributing
- * Authors and Group 42, Inc. disclaim all warranties, expressed or
- * implied, including, without limitation, the warranties of
- * merchantability and of fitness for any purpose. The Contributing
- * Authors and Group 42, Inc. assume no liability for direct, indirect,
- * incidental, special, exemplary, or consequential damages, which may
- * result from the use of the PNG Reference Library, even if advised of
- * the possibility of such damage.
- *
- * Permission is hereby granted to use, copy, modify, and distribute this
- * source code, or portions hereof, for any purpose, without fee, subject
- * to the following restrictions:
- *
- * 1. The origin of this source code must not be misrepresented.
- *
- * 2. Altered versions must be plainly marked as such and must not
- * be misrepresented as being the original source.
- *
- * 3. This Copyright notice may not be removed or altered from any
- * source or altered source distribution.
- *
- * The Contributing Authors and Group 42, Inc. specifically permit,
- * without fee, and encourage the use of this source code as a component
- * to supporting the PNG file format in commercial products. If you use
- * this source code in a product, acknowledgment is not required but would
- * be appreciated.
- *
- * END OF COPYRIGHT NOTICE, DISCLAIMER, and LICENSE.
- *
- * TRADEMARK
- * =========
- *
- * The name "libpng" has not been registered by the Copyright owners
- * as a trademark in any jurisdiction. However, because libpng has
- * been distributed and maintained world-wide, continually since 1995,
- * the Copyright owners claim "common-law trademark protection" in any
- * jurisdiction where common-law trademark is recognized.
- */
-
-/*
- * A "png_get_copyright" function is available, for convenient use in "about"
- * boxes and the like:
- *
- * printf("%s", png_get_copyright(NULL));
- *
- * Also, the PNG logo (in PNG format, of course) is supplied in the
- * files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
- */
-
-/*
- * The contributing authors would like to thank all those who helped
- * with testing, bug fixes, and patience. This wouldn't have been
- * possible without all of you.
- *
- * Thanks to Frank J. T. Wojcik for helping with the documentation.
- */
-
-/* Note about libpng version numbers:
- *
- * Due to various miscommunications, unforeseen code incompatibilities
- * and occasional factors outside the authors' control, version numbering
- * on the library has not always been consistent and straightforward.
- * The following table summarizes matters since version 0.89c, which was
- * the first widely used release:
- *
- * source png.h png.h shared-lib
- * version string int version
- * ------- ------ ----- ----------
- * 0.89c "1.0 beta 3" 0.89 89 1.0.89
- * 0.90 "1.0 beta 4" 0.90 90 0.90 [should have been 2.0.90]
- * 0.95 "1.0 beta 5" 0.95 95 0.95 [should have been 2.0.95]
- * 0.96 "1.0 beta 6" 0.96 96 0.96 [should have been 2.0.96]
- * 0.97b "1.00.97 beta 7" 1.00.97 97 1.0.1 [should have been 2.0.97]
- * 0.97c 0.97 97 2.0.97
- * 0.98 0.98 98 2.0.98
- * 0.99 0.99 98 2.0.99
- * 0.99a-m 0.99 99 2.0.99
- * 1.00 1.00 100 2.1.0 [100 should be 10000]
- * 1.0.0 (from here on, the 100 2.1.0 [100 should be 10000]
- * 1.0.1 png.h string is 10001 2.1.0
- * 1.0.1a-e identical to the 10002 from here on, the shared library
- * 1.0.2 source version) 10002 is 2.V where V is the source code
- * 1.0.2a-b 10003 version, except as noted.
- * 1.0.3 10003
- * 1.0.3a-d 10004
- * 1.0.4 10004
- * 1.0.4a-f 10005
- * 1.0.5 (+ 2 patches) 10005
- * 1.0.5a-d 10006
- * 1.0.5e-r 10100 (not source compatible)
- * 1.0.5s-v 10006 (not binary compatible)
- * 1.0.6 (+ 3 patches) 10006 (still binary incompatible)
- * 1.0.6d-f 10007 (still binary incompatible)
- * 1.0.6g 10007
- * 1.0.6h 10007 10.6h (testing xy.z so-numbering)
- * 1.0.6i 10007 10.6i
- * 1.0.6j 10007 2.1.0.6j (incompatible with 1.0.0)
- * 1.0.7beta11-14 DLLNUM 10007 2.1.0.7beta11-14 (binary compatible)
- * 1.0.7beta15-18 1 10007 2.1.0.7beta15-18 (binary compatible)
- * 1.0.7rc1-2 1 10007 2.1.0.7rc1-2 (binary compatible)
- * 1.0.7 1 10007 (still compatible)
- * ...
- * 1.0.69 10 10069 10.so.0.69[.0]
- * ...
- * 1.2.59 13 10259 12.so.0.59[.0]
- * ...
- * 1.4.20 14 10420 14.so.0.20[.0]
- * ...
- * 1.5.30 15 10530 15.so.15.30[.0]
- * ...
- * 1.6.37 16 10637 16.so.16.37[.0]
- *
- * Henceforth the source version will match the shared-library major and
- * minor numbers; the shared-library major version number will be used for
- * changes in backward compatibility, as it is intended.
- * The PNG_LIBPNG_VER macro, which is not used within libpng but is
- * available for applications, is an unsigned integer of the form XYYZZ
- * corresponding to the source version X.Y.Z (leading zeros in Y and Z).
- * Beta versions were given the previous public release number plus a
- * letter, until version 1.0.6j; from then on they were given the upcoming
- * public release number plus "betaNN" or "rcNN".
- *
- * Binary incompatibility exists only when applications make direct access
- * to the info_ptr or png_ptr members through png.h, and the compiled
- * application is loaded with a different version of the library.
- *
- * DLLNUM will change each time there are forward or backward changes
- * in binary compatibility (e.g., when a new feature is added).
- *
- * See libpng.txt or libpng.3 for more information. The PNG specification
- * is available as a W3C Recommendation and as an ISO/IEC Standard; see
- * <https://www.w3.org/TR/2003/REC-PNG-20031110/>
- */
-
-#ifndef PNG_H
-#define PNG_H
-
-/* This is not the place to learn how to use libpng. The file libpng-manual.txt
- * describes how to use libpng, and the file example.c summarizes it
- * with some code on which to build. This file is useful for looking
- * at the actual function definitions and structure components. If that
- * file has been stripped from your copy of libpng, you can find it at
- * <http://www.libpng.org/pub/png/libpng-manual.txt>
- *
- * If you just need to read a PNG file and don't want to read the documentation
- * skip to the end of this file and read the section entitled 'simplified API'.
- */
-
-/* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.6.37"
-#define PNG_HEADER_VERSION_STRING " libpng version 1.6.37 - April 14, 2019\n"
-
-#define PNG_LIBPNG_VER_SONUM 16
-#define PNG_LIBPNG_VER_DLLNUM 16
-
-/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
-#define PNG_LIBPNG_VER_MAJOR 1
-#define PNG_LIBPNG_VER_MINOR 6
-#define PNG_LIBPNG_VER_RELEASE 37
-
-/* This should be zero for a public release, or non-zero for a
- * development version. [Deprecated]
- */
-#define PNG_LIBPNG_VER_BUILD 0
-
-/* Release Status */
-#define PNG_LIBPNG_BUILD_ALPHA 1
-#define PNG_LIBPNG_BUILD_BETA 2
-#define PNG_LIBPNG_BUILD_RC 3
-#define PNG_LIBPNG_BUILD_STABLE 4
-#define PNG_LIBPNG_BUILD_RELEASE_STATUS_MASK 7
-
-/* Release-Specific Flags */
-#define PNG_LIBPNG_BUILD_PATCH 8 /* Can be OR'ed with
- PNG_LIBPNG_BUILD_STABLE only */
-#define PNG_LIBPNG_BUILD_PRIVATE 16 /* Cannot be OR'ed with
- PNG_LIBPNG_BUILD_SPECIAL */
-#define PNG_LIBPNG_BUILD_SPECIAL 32 /* Cannot be OR'ed with
- PNG_LIBPNG_BUILD_PRIVATE */
-
-#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_STABLE
-
-/* Careful here. At one time, Guy wanted to use 082, but that
- * would be octal. We must not include leading zeros.
- * Versions 0.7 through 1.0.0 were in the range 0 to 100 here
- * (only version 1.0.0 was mis-numbered 100 instead of 10000).
- * From version 1.0.1 it is:
- * XXYYZZ, where XX=major, YY=minor, ZZ=release
- */
-#define PNG_LIBPNG_VER 10637 /* 1.6.37 */
-
-/* Library configuration: these options cannot be changed after
- * the library has been built.
- */
-#ifndef PNGLCONF_H
-/* If pnglibconf.h is missing, you can
- * copy scripts/pnglibconf.h.prebuilt to pnglibconf.h
- */
-# include "pnglibconf.h"
-#endif
-
-#ifndef PNG_VERSION_INFO_ONLY
-/* Machine specific configuration. */
-# include "pngconf.h"
-#endif
-
-/*
- * Added at libpng-1.2.8
- *
- * Ref MSDN: Private as priority over Special
- * VS_FF_PRIVATEBUILD File *was not* built using standard release
- * procedures. If this value is given, the StringFileInfo block must
- * contain a PrivateBuild string.
- *
- * VS_FF_SPECIALBUILD File *was* built by the original company using
- * standard release procedures but is a variation of the standard
- * file of the same version number. If this value is given, the
- * StringFileInfo block must contain a SpecialBuild string.
- */
-
-#ifdef PNG_USER_PRIVATEBUILD /* From pnglibconf.h */
-# define PNG_LIBPNG_BUILD_TYPE \
- (PNG_LIBPNG_BUILD_BASE_TYPE | PNG_LIBPNG_BUILD_PRIVATE)
-#else
-# ifdef PNG_LIBPNG_SPECIALBUILD
-# define PNG_LIBPNG_BUILD_TYPE \
- (PNG_LIBPNG_BUILD_BASE_TYPE | PNG_LIBPNG_BUILD_SPECIAL)
-# else
-# define PNG_LIBPNG_BUILD_TYPE (PNG_LIBPNG_BUILD_BASE_TYPE)
-# endif
-#endif
-
-#ifndef PNG_VERSION_INFO_ONLY
-
-/* Inhibit C++ name-mangling for libpng functions but not for system calls. */
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-/* Version information for C files, stored in png.c. This had better match
- * the version above.
- */
-#define png_libpng_ver png_get_header_ver(NULL)
-
-/* This file is arranged in several sections:
- *
- * 1. [omitted]
- * 2. Any configuration options that can be specified by for the application
- * code when it is built. (Build time configuration is in pnglibconf.h)
- * 3. Type definitions (base types are defined in pngconf.h), structure
- * definitions.
- * 4. Exported library functions.
- * 5. Simplified API.
- * 6. Implementation options.
- *
- * The library source code has additional files (principally pngpriv.h) that
- * allow configuration of the library.
- */
-
-/* Section 1: [omitted] */
-
-/* Section 2: run time configuration
- * See pnglibconf.h for build time configuration
- *
- * Run time configuration allows the application to choose between
- * implementations of certain arithmetic APIs. The default is set
- * at build time and recorded in pnglibconf.h, but it is safe to
- * override these (and only these) settings. Note that this won't
- * change what the library does, only application code, and the
- * settings can (and probably should) be made on a per-file basis
- * by setting the #defines before including png.h
- *
- * Use macros to read integers from PNG data or use the exported
- * functions?
- * PNG_USE_READ_MACROS: use the macros (see below) Note that
- * the macros evaluate their argument multiple times.
- * PNG_NO_USE_READ_MACROS: call the relevant library function.
- *
- * Use the alternative algorithm for compositing alpha samples that
- * does not use division?
- * PNG_READ_COMPOSITE_NODIV_SUPPORTED: use the 'no division'
- * algorithm.
- * PNG_NO_READ_COMPOSITE_NODIV: use the 'division' algorithm.
- *
- * How to handle benign errors if PNG_ALLOW_BENIGN_ERRORS is
- * false?
- * PNG_ALLOW_BENIGN_ERRORS: map calls to the benign error
- * APIs to png_warning.
- * Otherwise the calls are mapped to png_error.
- */
-
-/* Section 3: type definitions, including structures and compile time
- * constants.
- * See pngconf.h for base types that vary by machine/system
- */
-
-/* This triggers a compiler error in png.c, if png.c and png.h
- * do not agree upon the version number.
- */
-typedef char* png_libpng_version_1_6_37;
-
-/* Basic control structions. Read libpng-manual.txt or libpng.3 for more info.
- *
- * png_struct is the cache of information used while reading or writing a single
- * PNG file. One of these is always required, although the simplified API
- * (below) hides the creation and destruction of it.
- */
-typedef struct png_struct_def png_struct;
-typedef const png_struct * png_const_structp;
-typedef png_struct * png_structp;
-typedef png_struct * * png_structpp;
-
-/* png_info contains information read from or to be written to a PNG file. One
- * or more of these must exist while reading or creating a PNG file. The
- * information is not used by libpng during read but is used to control what
- * gets written when a PNG file is created. "png_get_" function calls read
- * information during read and "png_set_" functions calls write information
- * when creating a PNG.
- * been moved into a separate header file that is not accessible to
- * applications. Read libpng-manual.txt or libpng.3 for more info.
- */
-typedef struct png_info_def png_info;
-typedef png_info * png_infop;
-typedef const png_info * png_const_infop;
-typedef png_info * * png_infopp;
-
-/* Types with names ending 'p' are pointer types. The corresponding types with
- * names ending 'rp' are identical pointer types except that the pointer is
- * marked 'restrict', which means that it is the only pointer to the object
- * passed to the function. Applications should not use the 'restrict' types;
- * it is always valid to pass 'p' to a pointer with a function argument of the
- * corresponding 'rp' type. Different compilers have different rules with
- * regard to type matching in the presence of 'restrict'. For backward
- * compatibility libpng callbacks never have 'restrict' in their parameters and,
- * consequentially, writing portable application code is extremely difficult if
- * an attempt is made to use 'restrict'.
- */
-typedef png_struct * PNG_RESTRICT png_structrp;
-typedef const png_struct * PNG_RESTRICT png_const_structrp;
-typedef png_info * PNG_RESTRICT png_inforp;
-typedef const png_info * PNG_RESTRICT png_const_inforp;
-
-/* Three color definitions. The order of the red, green, and blue, (and the
- * exact size) is not important, although the size of the fields need to
- * be png_byte or png_uint_16 (as defined below).
- */
-typedef struct png_color_struct
-{
- png_byte red;
- png_byte green;
- png_byte blue;
-} png_color;
-typedef png_color * png_colorp;
-typedef const png_color * png_const_colorp;
-typedef png_color * * png_colorpp;
-
-typedef struct png_color_16_struct
-{
- png_byte index; /* used for palette files */
- png_uint_16 red; /* for use in red green blue files */
- png_uint_16 green;
- png_uint_16 blue;
- png_uint_16 gray; /* for use in grayscale files */
-} png_color_16;
-typedef png_color_16 * png_color_16p;
-typedef const png_color_16 * png_const_color_16p;
-typedef png_color_16 * * png_color_16pp;
-
-typedef struct png_color_8_struct
-{
- png_byte red; /* for use in red green blue files */
- png_byte green;
- png_byte blue;
- png_byte gray; /* for use in grayscale files */
- png_byte alpha; /* for alpha channel files */
-} png_color_8;
-typedef png_color_8 * png_color_8p;
-typedef const png_color_8 * png_const_color_8p;
-typedef png_color_8 * * png_color_8pp;
-
-/*
- * The following two structures are used for the in-core representation
- * of sPLT chunks.
- */
-typedef struct png_sPLT_entry_struct
-{
- png_uint_16 red;
- png_uint_16 green;
- png_uint_16 blue;
- png_uint_16 alpha;
- png_uint_16 frequency;
-} png_sPLT_entry;
-typedef png_sPLT_entry * png_sPLT_entryp;
-typedef const png_sPLT_entry * png_const_sPLT_entryp;
-typedef png_sPLT_entry * * png_sPLT_entrypp;
-
-/* When the depth of the sPLT palette is 8 bits, the color and alpha samples
- * occupy the LSB of their respective members, and the MSB of each member
- * is zero-filled. The frequency member always occupies the full 16 bits.
- */
-
-typedef struct png_sPLT_struct
-{
- png_charp name; /* palette name */
- png_byte depth; /* depth of palette samples */
- png_sPLT_entryp entries; /* palette entries */
- png_int_32 nentries; /* number of palette entries */
-} png_sPLT_t;
-typedef png_sPLT_t * png_sPLT_tp;
-typedef const png_sPLT_t * png_const_sPLT_tp;
-typedef png_sPLT_t * * png_sPLT_tpp;
-
-#ifdef PNG_TEXT_SUPPORTED
-/* png_text holds the contents of a text/ztxt/itxt chunk in a PNG file,
- * and whether that contents is compressed or not. The "key" field
- * points to a regular zero-terminated C string. The "text" fields can be a
- * regular C string, an empty string, or a NULL pointer.
- * However, the structure returned by png_get_text() will always contain
- * the "text" field as a regular zero-terminated C string (possibly
- * empty), never a NULL pointer, so it can be safely used in printf() and
- * other string-handling functions. Note that the "itxt_length", "lang", and
- * "lang_key" members of the structure only exist when the library is built
- * with iTXt chunk support. Prior to libpng-1.4.0 the library was built by
- * default without iTXt support. Also note that when iTXt *is* supported,
- * the "lang" and "lang_key" fields contain NULL pointers when the
- * "compression" field contains * PNG_TEXT_COMPRESSION_NONE or
- * PNG_TEXT_COMPRESSION_zTXt. Note that the "compression value" is not the
- * same as what appears in the PNG tEXt/zTXt/iTXt chunk's "compression flag"
- * which is always 0 or 1, or its "compression method" which is always 0.
- */
-typedef struct png_text_struct
-{
- int compression; /* compression value:
- -1: tEXt, none
- 0: zTXt, deflate
- 1: iTXt, none
- 2: iTXt, deflate */
- png_charp key; /* keyword, 1-79 character description of "text" */
- png_charp text; /* comment, may be an empty string (ie "")
- or a NULL pointer */
- size_t text_length; /* length of the text string */
- size_t itxt_length; /* length of the itxt string */
- png_charp lang; /* language code, 0-79 characters
- or a NULL pointer */
- png_charp lang_key; /* keyword translated UTF-8 string, 0 or more
- chars or a NULL pointer */
-} png_text;
-typedef png_text * png_textp;
-typedef const png_text * png_const_textp;
-typedef png_text * * png_textpp;
-#endif
-
-/* Supported compression types for text in PNG files (tEXt, and zTXt).
- * The values of the PNG_TEXT_COMPRESSION_ defines should NOT be changed. */
-#define PNG_TEXT_COMPRESSION_NONE_WR -3
-#define PNG_TEXT_COMPRESSION_zTXt_WR -2
-#define PNG_TEXT_COMPRESSION_NONE -1
-#define PNG_TEXT_COMPRESSION_zTXt 0
-#define PNG_ITXT_COMPRESSION_NONE 1
-#define PNG_ITXT_COMPRESSION_zTXt 2
-#define PNG_TEXT_COMPRESSION_LAST 3 /* Not a valid value */
-
-/* png_time is a way to hold the time in an machine independent way.
- * Two conversions are provided, both from time_t and struct tm. There
- * is no portable way to convert to either of these structures, as far
- * as I know. If you know of a portable way, send it to me. As a side
- * note - PNG has always been Year 2000 compliant!
- */
-typedef struct png_time_struct
-{
- png_uint_16 year; /* full year, as in, 1995 */
- png_byte month; /* month of year, 1 - 12 */
- png_byte day; /* day of month, 1 - 31 */
- png_byte hour; /* hour of day, 0 - 23 */
- png_byte minute; /* minute of hour, 0 - 59 */
- png_byte second; /* second of minute, 0 - 60 (for leap seconds) */
-} png_time;
-typedef png_time * png_timep;
-typedef const png_time * png_const_timep;
-typedef png_time * * png_timepp;
-
-#if defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED) ||\
- defined(PNG_USER_CHUNKS_SUPPORTED)
-/* png_unknown_chunk is a structure to hold queued chunks for which there is
- * no specific support. The idea is that we can use this to queue
- * up private chunks for output even though the library doesn't actually
- * know about their semantics.
- *
- * The data in the structure is set by libpng on read and used on write.
- */
-typedef struct png_unknown_chunk_t
-{
- png_byte name[5]; /* Textual chunk name with '\0' terminator */
- png_byte *data; /* Data, should not be modified on read! */
- size_t size;
-
- /* On write 'location' must be set using the flag values listed below.
- * Notice that on read it is set by libpng however the values stored have
- * more bits set than are listed below. Always treat the value as a
- * bitmask. On write set only one bit - setting multiple bits may cause the
- * chunk to be written in multiple places.
- */
- png_byte location; /* mode of operation at read time */
-}
-png_unknown_chunk;
-
-typedef png_unknown_chunk * png_unknown_chunkp;
-typedef const png_unknown_chunk * png_const_unknown_chunkp;
-typedef png_unknown_chunk * * png_unknown_chunkpp;
-#endif
-
-/* Flag values for the unknown chunk location byte. */
-#define PNG_HAVE_IHDR 0x01
-#define PNG_HAVE_PLTE 0x02
-#define PNG_AFTER_IDAT 0x08
-
-/* Maximum positive integer used in PNG is (2^31)-1 */
-#define PNG_UINT_31_MAX ((png_uint_32)0x7fffffffL)
-#define PNG_UINT_32_MAX ((png_uint_32)(-1))
-#define PNG_SIZE_MAX ((size_t)(-1))
-
-/* These are constants for fixed point values encoded in the
- * PNG specification manner (x100000)
- */
-#define PNG_FP_1 100000
-#define PNG_FP_HALF 50000
-#define PNG_FP_MAX ((png_fixed_point)0x7fffffffL)
-#define PNG_FP_MIN (-PNG_FP_MAX)
-
-/* These describe the color_type field in png_info. */
-/* color type masks */
-#define PNG_COLOR_MASK_PALETTE 1
-#define PNG_COLOR_MASK_COLOR 2
-#define PNG_COLOR_MASK_ALPHA 4
-
-/* color types. Note that not all combinations are legal */
-#define PNG_COLOR_TYPE_GRAY 0
-#define PNG_COLOR_TYPE_PALETTE (PNG_COLOR_MASK_COLOR | PNG_COLOR_MASK_PALETTE)
-#define PNG_COLOR_TYPE_RGB (PNG_COLOR_MASK_COLOR)
-#define PNG_COLOR_TYPE_RGB_ALPHA (PNG_COLOR_MASK_COLOR | PNG_COLOR_MASK_ALPHA)
-#define PNG_COLOR_TYPE_GRAY_ALPHA (PNG_COLOR_MASK_ALPHA)
-/* aliases */
-#define PNG_COLOR_TYPE_RGBA PNG_COLOR_TYPE_RGB_ALPHA
-#define PNG_COLOR_TYPE_GA PNG_COLOR_TYPE_GRAY_ALPHA
-
-/* This is for compression type. PNG 1.0-1.2 only define the single type. */
-#define PNG_COMPRESSION_TYPE_BASE 0 /* Deflate method 8, 32K window */
-#define PNG_COMPRESSION_TYPE_DEFAULT PNG_COMPRESSION_TYPE_BASE
-
-/* This is for filter type. PNG 1.0-1.2 only define the single type. */
-#define PNG_FILTER_TYPE_BASE 0 /* Single row per-byte filtering */
-#define PNG_INTRAPIXEL_DIFFERENCING 64 /* Used only in MNG datastreams */
-#define PNG_FILTER_TYPE_DEFAULT PNG_FILTER_TYPE_BASE
-
-/* These are for the interlacing type. These values should NOT be changed. */
-#define PNG_INTERLACE_NONE 0 /* Non-interlaced image */
-#define PNG_INTERLACE_ADAM7 1 /* Adam7 interlacing */
-#define PNG_INTERLACE_LAST 2 /* Not a valid value */
-
-/* These are for the oFFs chunk. These values should NOT be changed. */
-#define PNG_OFFSET_PIXEL 0 /* Offset in pixels */
-#define PNG_OFFSET_MICROMETER 1 /* Offset in micrometers (1/10^6 meter) */
-#define PNG_OFFSET_LAST 2 /* Not a valid value */
-
-/* These are for the pCAL chunk. These values should NOT be changed. */
-#define PNG_EQUATION_LINEAR 0 /* Linear transformation */
-#define PNG_EQUATION_BASE_E 1 /* Exponential base e transform */
-#define PNG_EQUATION_ARBITRARY 2 /* Arbitrary base exponential transform */
-#define PNG_EQUATION_HYPERBOLIC 3 /* Hyperbolic sine transformation */
-#define PNG_EQUATION_LAST 4 /* Not a valid value */
-
-/* These are for the sCAL chunk. These values should NOT be changed. */
-#define PNG_SCALE_UNKNOWN 0 /* unknown unit (image scale) */
-#define PNG_SCALE_METER 1 /* meters per pixel */
-#define PNG_SCALE_RADIAN 2 /* radians per pixel */
-#define PNG_SCALE_LAST 3 /* Not a valid value */
-
-/* These are for the pHYs chunk. These values should NOT be changed. */
-#define PNG_RESOLUTION_UNKNOWN 0 /* pixels/unknown unit (aspect ratio) */
-#define PNG_RESOLUTION_METER 1 /* pixels/meter */
-#define PNG_RESOLUTION_LAST 2 /* Not a valid value */
-
-/* These are for the sRGB chunk. These values should NOT be changed. */
-#define PNG_sRGB_INTENT_PERCEPTUAL 0
-#define PNG_sRGB_INTENT_RELATIVE 1
-#define PNG_sRGB_INTENT_SATURATION 2
-#define PNG_sRGB_INTENT_ABSOLUTE 3
-#define PNG_sRGB_INTENT_LAST 4 /* Not a valid value */
-
-/* This is for text chunks */
-#define PNG_KEYWORD_MAX_LENGTH 79
-
-/* Maximum number of entries in PLTE/sPLT/tRNS arrays */
-#define PNG_MAX_PALETTE_LENGTH 256
-
-/* These determine if an ancillary chunk's data has been successfully read
- * from the PNG header, or if the application has filled in the corresponding
- * data in the info_struct to be written into the output file. The values
- * of the PNG_INFO_<chunk> defines should NOT be changed.
- */
-#define PNG_INFO_gAMA 0x0001U
-#define PNG_INFO_sBIT 0x0002U
-#define PNG_INFO_cHRM 0x0004U
-#define PNG_INFO_PLTE 0x0008U
-#define PNG_INFO_tRNS 0x0010U
-#define PNG_INFO_bKGD 0x0020U
-#define PNG_INFO_hIST 0x0040U
-#define PNG_INFO_pHYs 0x0080U
-#define PNG_INFO_oFFs 0x0100U
-#define PNG_INFO_tIME 0x0200U
-#define PNG_INFO_pCAL 0x0400U
-#define PNG_INFO_sRGB 0x0800U /* GR-P, 0.96a */
-#define PNG_INFO_iCCP 0x1000U /* ESR, 1.0.6 */
-#define PNG_INFO_sPLT 0x2000U /* ESR, 1.0.6 */
-#define PNG_INFO_sCAL 0x4000U /* ESR, 1.0.6 */
-#define PNG_INFO_IDAT 0x8000U /* ESR, 1.0.6 */
-#define PNG_INFO_eXIf 0x10000U /* GR-P, 1.6.31 */
-
-/* This is used for the transformation routines, as some of them
- * change these values for the row. It also should enable using
- * the routines for other purposes.
- */
-typedef struct png_row_info_struct
-{
- png_uint_32 width; /* width of row */
- size_t rowbytes; /* number of bytes in row */
- png_byte color_type; /* color type of row */
- png_byte bit_depth; /* bit depth of row */
- png_byte channels; /* number of channels (1, 2, 3, or 4) */
- png_byte pixel_depth; /* bits per pixel (depth * channels) */
-} png_row_info;
-
-typedef png_row_info * png_row_infop;
-typedef png_row_info * * png_row_infopp;
-
-/* These are the function types for the I/O functions and for the functions
- * that allow the user to override the default I/O functions with his or her
- * own. The png_error_ptr type should match that of user-supplied warning
- * and error functions, while the png_rw_ptr type should match that of the
- * user read/write data functions. Note that the 'write' function must not
- * modify the buffer it is passed. The 'read' function, on the other hand, is
- * expected to return the read data in the buffer.
- */
-typedef PNG_CALLBACK(void, *png_error_ptr, (png_structp, png_const_charp));
-typedef PNG_CALLBACK(void, *png_rw_ptr, (png_structp, png_bytep, size_t));
-typedef PNG_CALLBACK(void, *png_flush_ptr, (png_structp));
-typedef PNG_CALLBACK(void, *png_read_status_ptr, (png_structp, png_uint_32,
- int));
-typedef PNG_CALLBACK(void, *png_write_status_ptr, (png_structp, png_uint_32,
- int));
-
-#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
-typedef PNG_CALLBACK(void, *png_progressive_info_ptr, (png_structp, png_infop));
-typedef PNG_CALLBACK(void, *png_progressive_end_ptr, (png_structp, png_infop));
-
-/* The following callback receives png_uint_32 row_number, int pass for the
- * png_bytep data of the row. When transforming an interlaced image the
- * row number is the row number within the sub-image of the interlace pass, so
- * the value will increase to the height of the sub-image (not the full image)
- * then reset to 0 for the next pass.
- *
- * Use PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to
- * find the output pixel (x,y) given an interlaced sub-image pixel
- * (row,col,pass). (See below for these macros.)
- */
-typedef PNG_CALLBACK(void, *png_progressive_row_ptr, (png_structp, png_bytep,
- png_uint_32, int));
-#endif
-
-#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
- defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
-typedef PNG_CALLBACK(void, *png_user_transform_ptr, (png_structp, png_row_infop,
- png_bytep));
-#endif
-
-#ifdef PNG_USER_CHUNKS_SUPPORTED
-typedef PNG_CALLBACK(int, *png_user_chunk_ptr, (png_structp,
- png_unknown_chunkp));
-#endif
-#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
-/* not used anywhere */
-/* typedef PNG_CALLBACK(void, *png_unknown_chunk_ptr, (png_structp)); */
-#endif
-
-#ifdef PNG_SETJMP_SUPPORTED
-/* This must match the function definition in <setjmp.h>, and the application
- * must include this before png.h to obtain the definition of jmp_buf. The
- * function is required to be PNG_NORETURN, but this is not checked. If the
- * function does return the application will crash via an abort() or similar
- * system level call.
- *
- * If you get a warning here while building the library you may need to make
- * changes to ensure that pnglibconf.h records the calling convention used by
- * your compiler. This may be very difficult - try using a different compiler
- * to build the library!
- */
-PNG_FUNCTION(void, (PNGCAPI *png_longjmp_ptr), PNGARG((jmp_buf, int)), typedef);
-#endif
-
-/* Transform masks for the high-level interface */
-#define PNG_TRANSFORM_IDENTITY 0x0000 /* read and write */
-#define PNG_TRANSFORM_STRIP_16 0x0001 /* read only */
-#define PNG_TRANSFORM_STRIP_ALPHA 0x0002 /* read only */
-#define PNG_TRANSFORM_PACKING 0x0004 /* read and write */
-#define PNG_TRANSFORM_PACKSWAP 0x0008 /* read and write */
-#define PNG_TRANSFORM_EXPAND 0x0010 /* read only */
-#define PNG_TRANSFORM_INVERT_MONO 0x0020 /* read and write */
-#define PNG_TRANSFORM_SHIFT 0x0040 /* read and write */
-#define PNG_TRANSFORM_BGR 0x0080 /* read and write */
-#define PNG_TRANSFORM_SWAP_ALPHA 0x0100 /* read and write */
-#define PNG_TRANSFORM_SWAP_ENDIAN 0x0200 /* read and write */
-#define PNG_TRANSFORM_INVERT_ALPHA 0x0400 /* read and write */
-#define PNG_TRANSFORM_STRIP_FILLER 0x0800 /* write only */
-/* Added to libpng-1.2.34 */
-#define PNG_TRANSFORM_STRIP_FILLER_BEFORE PNG_TRANSFORM_STRIP_FILLER
-#define PNG_TRANSFORM_STRIP_FILLER_AFTER 0x1000 /* write only */
-/* Added to libpng-1.4.0 */
-#define PNG_TRANSFORM_GRAY_TO_RGB 0x2000 /* read only */
-/* Added to libpng-1.5.4 */
-#define PNG_TRANSFORM_EXPAND_16 0x4000 /* read only */
-#if INT_MAX >= 0x8000 /* else this might break */
-#define PNG_TRANSFORM_SCALE_16 0x8000 /* read only */
-#endif
-
-/* Flags for MNG supported features */
-#define PNG_FLAG_MNG_EMPTY_PLTE 0x01
-#define PNG_FLAG_MNG_FILTER_64 0x04
-#define PNG_ALL_MNG_FEATURES 0x05
-
-/* NOTE: prior to 1.5 these functions had no 'API' style declaration,
- * this allowed the zlib default functions to be used on Windows
- * platforms. In 1.5 the zlib default malloc (which just calls malloc and
- * ignores the first argument) should be completely compatible with the
- * following.
- */
-typedef PNG_CALLBACK(png_voidp, *png_malloc_ptr, (png_structp,
- png_alloc_size_t));
-typedef PNG_CALLBACK(void, *png_free_ptr, (png_structp, png_voidp));
-
-/* Section 4: exported functions
- * Here are the function definitions most commonly used. This is not
- * the place to find out how to use libpng. See libpng-manual.txt for the
- * full explanation, see example.c for the summary. This just provides
- * a simple one line description of the use of each function.
- *
- * The PNG_EXPORT() and PNG_EXPORTA() macros used below are defined in
- * pngconf.h and in the *.dfn files in the scripts directory.
- *
- * PNG_EXPORT(ordinal, type, name, (args));
- *
- * ordinal: ordinal that is used while building
- * *.def files. The ordinal value is only
- * relevant when preprocessing png.h with
- * the *.dfn files for building symbol table
- * entries, and are removed by pngconf.h.
- * type: return type of the function
- * name: function name
- * args: function arguments, with types
- *
- * When we wish to append attributes to a function prototype we use
- * the PNG_EXPORTA() macro instead.
- *
- * PNG_EXPORTA(ordinal, type, name, (args), attributes);
- *
- * ordinal, type, name, and args: same as in PNG_EXPORT().
- * attributes: function attributes
- */
-
-/* Returns the version number of the library */
-PNG_EXPORT(1, png_uint_32, png_access_version_number, (void));
-
-/* Tell lib we have already handled the first <num_bytes> magic bytes.
- * Handling more than 8 bytes from the beginning of the file is an error.
- */
-PNG_EXPORT(2, void, png_set_sig_bytes, (png_structrp png_ptr, int num_bytes));
-
-/* Check sig[start] through sig[start + num_to_check - 1] to see if it's a
- * PNG file. Returns zero if the supplied bytes match the 8-byte PNG
- * signature, and non-zero otherwise. Having num_to_check == 0 or
- * start > 7 will always fail (ie return non-zero).
- */
-PNG_EXPORT(3, int, png_sig_cmp, (png_const_bytep sig, size_t start,
- size_t num_to_check));
-
-/* Simple signature checking function. This is the same as calling
- * png_check_sig(sig, n) := !png_sig_cmp(sig, 0, n).
- */
-#define png_check_sig(sig, n) !png_sig_cmp((sig), 0, (n))
-
-/* Allocate and initialize png_ptr struct for reading, and any other memory. */
-PNG_EXPORTA(4, png_structp, png_create_read_struct,
- (png_const_charp user_png_ver, png_voidp error_ptr,
- png_error_ptr error_fn, png_error_ptr warn_fn),
- PNG_ALLOCATED);
-
-/* Allocate and initialize png_ptr struct for writing, and any other memory */
-PNG_EXPORTA(5, png_structp, png_create_write_struct,
- (png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn,
- png_error_ptr warn_fn),
- PNG_ALLOCATED);
-
-PNG_EXPORT(6, size_t, png_get_compression_buffer_size,
- (png_const_structrp png_ptr));
-
-PNG_EXPORT(7, void, png_set_compression_buffer_size, (png_structrp png_ptr,
- size_t size));
-
-/* Moved from pngconf.h in 1.4.0 and modified to ensure setjmp/longjmp
- * match up.
- */
-#ifdef PNG_SETJMP_SUPPORTED
-/* This function returns the jmp_buf built in to *png_ptr. It must be
- * supplied with an appropriate 'longjmp' function to use on that jmp_buf
- * unless the default error function is overridden in which case NULL is
- * acceptable. The size of the jmp_buf is checked against the actual size
- * allocated by the library - the call will return NULL on a mismatch
- * indicating an ABI mismatch.
- */
-PNG_EXPORT(8, jmp_buf*, png_set_longjmp_fn, (png_structrp png_ptr,
- png_longjmp_ptr longjmp_fn, size_t jmp_buf_size));
-# define png_jmpbuf(png_ptr) \
- (*png_set_longjmp_fn((png_ptr), longjmp, (sizeof (jmp_buf))))
-#else
-# define png_jmpbuf(png_ptr) \
- (LIBPNG_WAS_COMPILED_WITH__PNG_NO_SETJMP)
-#endif
-/* This function should be used by libpng applications in place of
- * longjmp(png_ptr->jmpbuf, val). If longjmp_fn() has been set, it
- * will use it; otherwise it will call PNG_ABORT(). This function was
- * added in libpng-1.5.0.
- */
-PNG_EXPORTA(9, void, png_longjmp, (png_const_structrp png_ptr, int val),
- PNG_NORETURN);
-
-#ifdef PNG_READ_SUPPORTED
-/* Reset the compression stream */
-PNG_EXPORTA(10, int, png_reset_zstream, (png_structrp png_ptr), PNG_DEPRECATED);
-#endif
-
-/* New functions added in libpng-1.0.2 (not enabled by default until 1.2.0) */
-#ifdef PNG_USER_MEM_SUPPORTED
-PNG_EXPORTA(11, png_structp, png_create_read_struct_2,
- (png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn,
- png_error_ptr warn_fn,
- png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn),
- PNG_ALLOCATED);
-PNG_EXPORTA(12, png_structp, png_create_write_struct_2,
- (png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn,
- png_error_ptr warn_fn,
- png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn),
- PNG_ALLOCATED);
-#endif
-
-/* Write the PNG file signature. */
-PNG_EXPORT(13, void, png_write_sig, (png_structrp png_ptr));
-
-/* Write a PNG chunk - size, type, (optional) data, CRC. */
-PNG_EXPORT(14, void, png_write_chunk, (png_structrp png_ptr, png_const_bytep
- chunk_name, png_const_bytep data, size_t length));
-
-/* Write the start of a PNG chunk - length and chunk name. */
-PNG_EXPORT(15, void, png_write_chunk_start, (png_structrp png_ptr,
- png_const_bytep chunk_name, png_uint_32 length));
-
-/* Write the data of a PNG chunk started with png_write_chunk_start(). */
-PNG_EXPORT(16, void, png_write_chunk_data, (png_structrp png_ptr,
- png_const_bytep data, size_t length));
-
-/* Finish a chunk started with png_write_chunk_start() (includes CRC). */
-PNG_EXPORT(17, void, png_write_chunk_end, (png_structrp png_ptr));
-
-/* Allocate and initialize the info structure */
-PNG_EXPORTA(18, png_infop, png_create_info_struct, (png_const_structrp png_ptr),
- PNG_ALLOCATED);
-
-/* DEPRECATED: this function allowed init structures to be created using the
- * default allocation method (typically malloc). Use is deprecated in 1.6.0 and
- * the API will be removed in the future.
- */
-PNG_EXPORTA(19, void, png_info_init_3, (png_infopp info_ptr,
- size_t png_info_struct_size), PNG_DEPRECATED);
-
-/* Writes all the PNG information before the image. */
-PNG_EXPORT(20, void, png_write_info_before_PLTE,
- (png_structrp png_ptr, png_const_inforp info_ptr));
-PNG_EXPORT(21, void, png_write_info,
- (png_structrp png_ptr, png_const_inforp info_ptr));
-
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-/* Read the information before the actual image data. */
-PNG_EXPORT(22, void, png_read_info,
- (png_structrp png_ptr, png_inforp info_ptr));
-#endif
-
-#ifdef PNG_TIME_RFC1123_SUPPORTED
- /* Convert to a US string format: there is no localization support in this
- * routine. The original implementation used a 29 character buffer in
- * png_struct, this will be removed in future versions.
- */
-#if PNG_LIBPNG_VER < 10700
-/* To do: remove this from libpng17 (and from libpng17/png.c and pngstruct.h) */
-PNG_EXPORTA(23, png_const_charp, png_convert_to_rfc1123, (png_structrp png_ptr,
- png_const_timep ptime),PNG_DEPRECATED);
-#endif
-PNG_EXPORT(241, int, png_convert_to_rfc1123_buffer, (char out[29],
- png_const_timep ptime));
-#endif
-
-#ifdef PNG_CONVERT_tIME_SUPPORTED
-/* Convert from a struct tm to png_time */
-PNG_EXPORT(24, void, png_convert_from_struct_tm, (png_timep ptime,
- const struct tm * ttime));
-
-/* Convert from time_t to png_time. Uses gmtime() */
-PNG_EXPORT(25, void, png_convert_from_time_t, (png_timep ptime, time_t ttime));
-#endif /* CONVERT_tIME */
-
-#ifdef PNG_READ_EXPAND_SUPPORTED
-/* Expand data to 24-bit RGB, or 8-bit grayscale, with alpha if available. */
-PNG_EXPORT(26, void, png_set_expand, (png_structrp png_ptr));
-PNG_EXPORT(27, void, png_set_expand_gray_1_2_4_to_8, (png_structrp png_ptr));
-PNG_EXPORT(28, void, png_set_palette_to_rgb, (png_structrp png_ptr));
-PNG_EXPORT(29, void, png_set_tRNS_to_alpha, (png_structrp png_ptr));
-#endif
-
-#ifdef PNG_READ_EXPAND_16_SUPPORTED
-/* Expand to 16-bit channels, forces conversion of palette to RGB and expansion
- * of a tRNS chunk if present.
- */
-PNG_EXPORT(221, void, png_set_expand_16, (png_structrp png_ptr));
-#endif
-
-#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED)
-/* Use blue, green, red order for pixels. */
-PNG_EXPORT(30, void, png_set_bgr, (png_structrp png_ptr));
-#endif
-
-#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
-/* Expand the grayscale to 24-bit RGB if necessary. */
-PNG_EXPORT(31, void, png_set_gray_to_rgb, (png_structrp png_ptr));
-#endif
-
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
-/* Reduce RGB to grayscale. */
-#define PNG_ERROR_ACTION_NONE 1
-#define PNG_ERROR_ACTION_WARN 2
-#define PNG_ERROR_ACTION_ERROR 3
-#define PNG_RGB_TO_GRAY_DEFAULT (-1)/*for red/green coefficients*/
-
-PNG_FP_EXPORT(32, void, png_set_rgb_to_gray, (png_structrp png_ptr,
- int error_action, double red, double green))
-PNG_FIXED_EXPORT(33, void, png_set_rgb_to_gray_fixed, (png_structrp png_ptr,
- int error_action, png_fixed_point red, png_fixed_point green))
-
-PNG_EXPORT(34, png_byte, png_get_rgb_to_gray_status, (png_const_structrp
- png_ptr));
-#endif
-
-#ifdef PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED
-PNG_EXPORT(35, void, png_build_grayscale_palette, (int bit_depth,
- png_colorp palette));
-#endif
-
-#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
-/* How the alpha channel is interpreted - this affects how the color channels
- * of a PNG file are returned to the calling application when an alpha channel,
- * or a tRNS chunk in a palette file, is present.
- *
- * This has no effect on the way pixels are written into a PNG output
- * datastream. The color samples in a PNG datastream are never premultiplied
- * with the alpha samples.
- *
- * The default is to return data according to the PNG specification: the alpha
- * channel is a linear measure of the contribution of the pixel to the
- * corresponding composited pixel, and the color channels are unassociated
- * (not premultiplied). The gamma encoded color channels must be scaled
- * according to the contribution and to do this it is necessary to undo
- * the encoding, scale the color values, perform the composition and re-encode
- * the values. This is the 'PNG' mode.
- *
- * The alternative is to 'associate' the alpha with the color information by
- * storing color channel values that have been scaled by the alpha.
- * image. These are the 'STANDARD', 'ASSOCIATED' or 'PREMULTIPLIED' modes
- * (the latter being the two common names for associated alpha color channels).
- *
- * For the 'OPTIMIZED' mode, a pixel is treated as opaque only if the alpha
- * value is equal to the maximum value.
- *
- * The final choice is to gamma encode the alpha channel as well. This is
- * broken because, in practice, no implementation that uses this choice
- * correctly undoes the encoding before handling alpha composition. Use this
- * choice only if other serious errors in the software or hardware you use
- * mandate it; the typical serious error is for dark halos to appear around
- * opaque areas of the composited PNG image because of arithmetic overflow.
- *
- * The API function png_set_alpha_mode specifies which of these choices to use
- * with an enumerated 'mode' value and the gamma of the required output:
- */
-#define PNG_ALPHA_PNG 0 /* according to the PNG standard */
-#define PNG_ALPHA_STANDARD 1 /* according to Porter/Duff */
-#define PNG_ALPHA_ASSOCIATED 1 /* as above; this is the normal practice */
-#define PNG_ALPHA_PREMULTIPLIED 1 /* as above */
-#define PNG_ALPHA_OPTIMIZED 2 /* 'PNG' for opaque pixels, else 'STANDARD' */
-#define PNG_ALPHA_BROKEN 3 /* the alpha channel is gamma encoded */
-
-PNG_FP_EXPORT(227, void, png_set_alpha_mode, (png_structrp png_ptr, int mode,
- double output_gamma))
-PNG_FIXED_EXPORT(228, void, png_set_alpha_mode_fixed, (png_structrp png_ptr,
- int mode, png_fixed_point output_gamma))
-#endif
-
-#if defined(PNG_GAMMA_SUPPORTED) || defined(PNG_READ_ALPHA_MODE_SUPPORTED)
-/* The output_gamma value is a screen gamma in libpng terminology: it expresses
- * how to decode the output values, not how they are encoded.
- */
-#define PNG_DEFAULT_sRGB -1 /* sRGB gamma and color space */
-#define PNG_GAMMA_MAC_18 -2 /* Old Mac '1.8' gamma and color space */
-#define PNG_GAMMA_sRGB 220000 /* Television standards--matches sRGB gamma */
-#define PNG_GAMMA_LINEAR PNG_FP_1 /* Linear */
-#endif
-
-/* The following are examples of calls to png_set_alpha_mode to achieve the
- * required overall gamma correction and, where necessary, alpha
- * premultiplication.
- *
- * png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB);
- * This is the default libpng handling of the alpha channel - it is not
- * pre-multiplied into the color components. In addition the call states
- * that the output is for a sRGB system and causes all PNG files without gAMA
- * chunks to be assumed to be encoded using sRGB.
- *
- * png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC);
- * In this case the output is assumed to be something like an sRGB conformant
- * display preceded by a power-law lookup table of power 1.45. This is how
- * early Mac systems behaved.
- *
- * png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_GAMMA_LINEAR);
- * This is the classic Jim Blinn approach and will work in academic
- * environments where everything is done by the book. It has the shortcoming
- * of assuming that input PNG data with no gamma information is linear - this
- * is unlikely to be correct unless the PNG files where generated locally.
- * Most of the time the output precision will be so low as to show
- * significant banding in dark areas of the image.
- *
- * png_set_expand_16(pp);
- * png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_DEFAULT_sRGB);
- * This is a somewhat more realistic Jim Blinn inspired approach. PNG files
- * are assumed to have the sRGB encoding if not marked with a gamma value and
- * the output is always 16 bits per component. This permits accurate scaling
- * and processing of the data. If you know that your input PNG files were
- * generated locally you might need to replace PNG_DEFAULT_sRGB with the
- * correct value for your system.
- *
- * png_set_alpha_mode(pp, PNG_ALPHA_OPTIMIZED, PNG_DEFAULT_sRGB);
- * If you just need to composite the PNG image onto an existing background
- * and if you control the code that does this you can use the optimization
- * setting. In this case you just copy completely opaque pixels to the
- * output. For pixels that are not completely transparent (you just skip
- * those) you do the composition math using png_composite or png_composite_16
- * below then encode the resultant 8-bit or 16-bit values to match the output
- * encoding.
- *
- * Other cases
- * If neither the PNG nor the standard linear encoding work for you because
- * of the software or hardware you use then you have a big problem. The PNG
- * case will probably result in halos around the image. The linear encoding
- * will probably result in a washed out, too bright, image (it's actually too
- * contrasty.) Try the ALPHA_OPTIMIZED mode above - this will probably
- * substantially reduce the halos. Alternatively try:
- *
- * png_set_alpha_mode(pp, PNG_ALPHA_BROKEN, PNG_DEFAULT_sRGB);
- * This option will also reduce the halos, but there will be slight dark
- * halos round the opaque parts of the image where the background is light.
- * In the OPTIMIZED mode the halos will be light halos where the background
- * is dark. Take your pick - the halos are unavoidable unless you can get
- * your hardware/software fixed! (The OPTIMIZED approach is slightly
- * faster.)
- *
- * When the default gamma of PNG files doesn't match the output gamma.
- * If you have PNG files with no gamma information png_set_alpha_mode allows
- * you to provide a default gamma, but it also sets the output gamma to the
- * matching value. If you know your PNG files have a gamma that doesn't
- * match the output you can take advantage of the fact that
- * png_set_alpha_mode always sets the output gamma but only sets the PNG
- * default if it is not already set:
- *
- * png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB);
- * png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC);
- * The first call sets both the default and the output gamma values, the
- * second call overrides the output gamma without changing the default. This
- * is easier than achieving the same effect with png_set_gamma. You must use
- * PNG_ALPHA_PNG for the first call - internal checking in png_set_alpha will
- * fire if more than one call to png_set_alpha_mode and png_set_background is
- * made in the same read operation, however multiple calls with PNG_ALPHA_PNG
- * are ignored.
- */
-
-#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
-PNG_EXPORT(36, void, png_set_strip_alpha, (png_structrp png_ptr));
-#endif
-
-#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \
- defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED)
-PNG_EXPORT(37, void, png_set_swap_alpha, (png_structrp png_ptr));
-#endif
-
-#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) || \
- defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED)
-PNG_EXPORT(38, void, png_set_invert_alpha, (png_structrp png_ptr));
-#endif
-
-#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED)
-/* Add a filler byte to 8-bit or 16-bit Gray or 24-bit or 48-bit RGB images. */
-PNG_EXPORT(39, void, png_set_filler, (png_structrp png_ptr, png_uint_32 filler,
- int flags));
-/* The values of the PNG_FILLER_ defines should NOT be changed */
-# define PNG_FILLER_BEFORE 0
-# define PNG_FILLER_AFTER 1
-/* Add an alpha byte to 8-bit or 16-bit Gray or 24-bit or 48-bit RGB images. */
-PNG_EXPORT(40, void, png_set_add_alpha, (png_structrp png_ptr,
- png_uint_32 filler, int flags));
-#endif /* READ_FILLER || WRITE_FILLER */
-
-#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED)
-/* Swap bytes in 16-bit depth files. */
-PNG_EXPORT(41, void, png_set_swap, (png_structrp png_ptr));
-#endif
-
-#if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
-/* Use 1 byte per pixel in 1, 2, or 4-bit depth files. */
-PNG_EXPORT(42, void, png_set_packing, (png_structrp png_ptr));
-#endif
-
-#if defined(PNG_READ_PACKSWAP_SUPPORTED) || \
- defined(PNG_WRITE_PACKSWAP_SUPPORTED)
-/* Swap packing order of pixels in bytes. */
-PNG_EXPORT(43, void, png_set_packswap, (png_structrp png_ptr));
-#endif
-
-#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED)
-/* Converts files to legal bit depths. */
-PNG_EXPORT(44, void, png_set_shift, (png_structrp png_ptr, png_const_color_8p
- true_bits));
-#endif
-
-#if defined(PNG_READ_INTERLACING_SUPPORTED) || \
- defined(PNG_WRITE_INTERLACING_SUPPORTED)
-/* Have the code handle the interlacing. Returns the number of passes.
- * MUST be called before png_read_update_info or png_start_read_image,
- * otherwise it will not have the desired effect. Note that it is still
- * necessary to call png_read_row or png_read_rows png_get_image_height
- * times for each pass.
-*/
-PNG_EXPORT(45, int, png_set_interlace_handling, (png_structrp png_ptr));
-#endif
-
-#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED)
-/* Invert monochrome files */
-PNG_EXPORT(46, void, png_set_invert_mono, (png_structrp png_ptr));
-#endif
-
-#ifdef PNG_READ_BACKGROUND_SUPPORTED
-/* Handle alpha and tRNS by replacing with a background color. Prior to
- * libpng-1.5.4 this API must not be called before the PNG file header has been
- * read. Doing so will result in unexpected behavior and possible warnings or
- * errors if the PNG file contains a bKGD chunk.
- */
-PNG_FP_EXPORT(47, void, png_set_background, (png_structrp png_ptr,
- png_const_color_16p background_color, int background_gamma_code,
- int need_expand, double background_gamma))
-PNG_FIXED_EXPORT(215, void, png_set_background_fixed, (png_structrp png_ptr,
- png_const_color_16p background_color, int background_gamma_code,
- int need_expand, png_fixed_point background_gamma))
-#endif
-#ifdef PNG_READ_BACKGROUND_SUPPORTED
-# define PNG_BACKGROUND_GAMMA_UNKNOWN 0
-# define PNG_BACKGROUND_GAMMA_SCREEN 1
-# define PNG_BACKGROUND_GAMMA_FILE 2
-# define PNG_BACKGROUND_GAMMA_UNIQUE 3
-#endif
-
-#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
-/* Scale a 16-bit depth file down to 8-bit, accurately. */
-PNG_EXPORT(229, void, png_set_scale_16, (png_structrp png_ptr));
-#endif
-
-#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
-#define PNG_READ_16_TO_8_SUPPORTED /* Name prior to 1.5.4 */
-/* Strip the second byte of information from a 16-bit depth file. */
-PNG_EXPORT(48, void, png_set_strip_16, (png_structrp png_ptr));
-#endif
-
-#ifdef PNG_READ_QUANTIZE_SUPPORTED
-/* Turn on quantizing, and reduce the palette to the number of colors
- * available.
- */
-PNG_EXPORT(49, void, png_set_quantize, (png_structrp png_ptr,
- png_colorp palette, int num_palette, int maximum_colors,
- png_const_uint_16p histogram, int full_quantize));
-#endif
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
-/* The threshold on gamma processing is configurable but hard-wired into the
- * library. The following is the floating point variant.
- */
-#define PNG_GAMMA_THRESHOLD (PNG_GAMMA_THRESHOLD_FIXED*.00001)
-
-/* Handle gamma correction. Screen_gamma=(display_exponent).
- * NOTE: this API simply sets the screen and file gamma values. It will
- * therefore override the value for gamma in a PNG file if it is called after
- * the file header has been read - use with care - call before reading the PNG
- * file for best results!
- *
- * These routines accept the same gamma values as png_set_alpha_mode (described
- * above). The PNG_GAMMA_ defines and PNG_DEFAULT_sRGB can be passed to either
- * API (floating point or fixed.) Notice, however, that the 'file_gamma' value
- * is the inverse of a 'screen gamma' value.
- */
-PNG_FP_EXPORT(50, void, png_set_gamma, (png_structrp png_ptr,
- double screen_gamma, double override_file_gamma))
-PNG_FIXED_EXPORT(208, void, png_set_gamma_fixed, (png_structrp png_ptr,
- png_fixed_point screen_gamma, png_fixed_point override_file_gamma))
-#endif
-
-#ifdef PNG_WRITE_FLUSH_SUPPORTED
-/* Set how many lines between output flushes - 0 for no flushing */
-PNG_EXPORT(51, void, png_set_flush, (png_structrp png_ptr, int nrows));
-/* Flush the current PNG output buffer */
-PNG_EXPORT(52, void, png_write_flush, (png_structrp png_ptr));
-#endif
-
-/* Optional update palette with requested transformations */
-PNG_EXPORT(53, void, png_start_read_image, (png_structrp png_ptr));
-
-/* Optional call to update the users info structure */
-PNG_EXPORT(54, void, png_read_update_info, (png_structrp png_ptr,
- png_inforp info_ptr));
-
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-/* Read one or more rows of image data. */
-PNG_EXPORT(55, void, png_read_rows, (png_structrp png_ptr, png_bytepp row,
- png_bytepp display_row, png_uint_32 num_rows));
-#endif
-
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-/* Read a row of data. */
-PNG_EXPORT(56, void, png_read_row, (png_structrp png_ptr, png_bytep row,
- png_bytep display_row));
-#endif
-
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-/* Read the whole image into memory at once. */
-PNG_EXPORT(57, void, png_read_image, (png_structrp png_ptr, png_bytepp image));
-#endif
-
-/* Write a row of image data */
-PNG_EXPORT(58, void, png_write_row, (png_structrp png_ptr,
- png_const_bytep row));
-
-/* Write a few rows of image data: (*row) is not written; however, the type
- * is declared as writeable to maintain compatibility with previous versions
- * of libpng and to allow the 'display_row' array from read_rows to be passed
- * unchanged to write_rows.
- */
-PNG_EXPORT(59, void, png_write_rows, (png_structrp png_ptr, png_bytepp row,
- png_uint_32 num_rows));
-
-/* Write the image data */
-PNG_EXPORT(60, void, png_write_image, (png_structrp png_ptr, png_bytepp image));
-
-/* Write the end of the PNG file. */
-PNG_EXPORT(61, void, png_write_end, (png_structrp png_ptr,
- png_inforp info_ptr));
-
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-/* Read the end of the PNG file. */
-PNG_EXPORT(62, void, png_read_end, (png_structrp png_ptr, png_inforp info_ptr));
-#endif
-
-/* Free any memory associated with the png_info_struct */
-PNG_EXPORT(63, void, png_destroy_info_struct, (png_const_structrp png_ptr,
- png_infopp info_ptr_ptr));
-
-/* Free any memory associated with the png_struct and the png_info_structs */
-PNG_EXPORT(64, void, png_destroy_read_struct, (png_structpp png_ptr_ptr,
- png_infopp info_ptr_ptr, png_infopp end_info_ptr_ptr));
-
-/* Free any memory associated with the png_struct and the png_info_structs */
-PNG_EXPORT(65, void, png_destroy_write_struct, (png_structpp png_ptr_ptr,
- png_infopp info_ptr_ptr));
-
-/* Set the libpng method of handling chunk CRC errors */
-PNG_EXPORT(66, void, png_set_crc_action, (png_structrp png_ptr, int crit_action,
- int ancil_action));
-
-/* Values for png_set_crc_action() say how to handle CRC errors in
- * ancillary and critical chunks, and whether to use the data contained
- * therein. Note that it is impossible to "discard" data in a critical
- * chunk. For versions prior to 0.90, the action was always error/quit,
- * whereas in version 0.90 and later, the action for CRC errors in ancillary
- * chunks is warn/discard. These values should NOT be changed.
- *
- * value action:critical action:ancillary
- */
-#define PNG_CRC_DEFAULT 0 /* error/quit warn/discard data */
-#define PNG_CRC_ERROR_QUIT 1 /* error/quit error/quit */
-#define PNG_CRC_WARN_DISCARD 2 /* (INVALID) warn/discard data */
-#define PNG_CRC_WARN_USE 3 /* warn/use data warn/use data */
-#define PNG_CRC_QUIET_USE 4 /* quiet/use data quiet/use data */
-#define PNG_CRC_NO_CHANGE 5 /* use current value use current value */
-
-#ifdef PNG_WRITE_SUPPORTED
-/* These functions give the user control over the scan-line filtering in
- * libpng and the compression methods used by zlib. These functions are
- * mainly useful for testing, as the defaults should work with most users.
- * Those users who are tight on memory or want faster performance at the
- * expense of compression can modify them. See the compression library
- * header file (zlib.h) for an explination of the compression functions.
- */
-
-/* Set the filtering method(s) used by libpng. Currently, the only valid
- * value for "method" is 0.
- */
-PNG_EXPORT(67, void, png_set_filter, (png_structrp png_ptr, int method,
- int filters));
-#endif /* WRITE */
-
-/* Flags for png_set_filter() to say which filters to use. The flags
- * are chosen so that they don't conflict with real filter types
- * below, in case they are supplied instead of the #defined constants.
- * These values should NOT be changed.
- */
-#define PNG_NO_FILTERS 0x00
-#define PNG_FILTER_NONE 0x08
-#define PNG_FILTER_SUB 0x10
-#define PNG_FILTER_UP 0x20
-#define PNG_FILTER_AVG 0x40
-#define PNG_FILTER_PAETH 0x80
-#define PNG_FAST_FILTERS (PNG_FILTER_NONE | PNG_FILTER_SUB | PNG_FILTER_UP)
-#define PNG_ALL_FILTERS (PNG_FAST_FILTERS | PNG_FILTER_AVG | PNG_FILTER_PAETH)
-
-/* Filter values (not flags) - used in pngwrite.c, pngwutil.c for now.
- * These defines should NOT be changed.
- */
-#define PNG_FILTER_VALUE_NONE 0
-#define PNG_FILTER_VALUE_SUB 1
-#define PNG_FILTER_VALUE_UP 2
-#define PNG_FILTER_VALUE_AVG 3
-#define PNG_FILTER_VALUE_PAETH 4
-#define PNG_FILTER_VALUE_LAST 5
-
-#ifdef PNG_WRITE_SUPPORTED
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* DEPRECATED */
-PNG_FP_EXPORT(68, void, png_set_filter_heuristics, (png_structrp png_ptr,
- int heuristic_method, int num_weights, png_const_doublep filter_weights,
- png_const_doublep filter_costs))
-PNG_FIXED_EXPORT(209, void, png_set_filter_heuristics_fixed,
- (png_structrp png_ptr, int heuristic_method, int num_weights,
- png_const_fixed_point_p filter_weights,
- png_const_fixed_point_p filter_costs))
-#endif /* WRITE_WEIGHTED_FILTER */
-
-/* The following are no longer used and will be removed from libpng-1.7: */
-#define PNG_FILTER_HEURISTIC_DEFAULT 0 /* Currently "UNWEIGHTED" */
-#define PNG_FILTER_HEURISTIC_UNWEIGHTED 1 /* Used by libpng < 0.95 */
-#define PNG_FILTER_HEURISTIC_WEIGHTED 2 /* Experimental feature */
-#define PNG_FILTER_HEURISTIC_LAST 3 /* Not a valid value */
-
-/* Set the library compression level. Currently, valid values range from
- * 0 - 9, corresponding directly to the zlib compression levels 0 - 9
- * (0 - no compression, 9 - "maximal" compression). Note that tests have
- * shown that zlib compression levels 3-6 usually perform as well as level 9
- * for PNG images, and do considerably fewer caclulations. In the future,
- * these values may not correspond directly to the zlib compression levels.
- */
-#ifdef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
-PNG_EXPORT(69, void, png_set_compression_level, (png_structrp png_ptr,
- int level));
-
-PNG_EXPORT(70, void, png_set_compression_mem_level, (png_structrp png_ptr,
- int mem_level));
-
-PNG_EXPORT(71, void, png_set_compression_strategy, (png_structrp png_ptr,
- int strategy));
-
-/* If PNG_WRITE_OPTIMIZE_CMF_SUPPORTED is defined, libpng will use a
- * smaller value of window_bits if it can do so safely.
- */
-PNG_EXPORT(72, void, png_set_compression_window_bits, (png_structrp png_ptr,
- int window_bits));
-
-PNG_EXPORT(73, void, png_set_compression_method, (png_structrp png_ptr,
- int method));
-#endif /* WRITE_CUSTOMIZE_COMPRESSION */
-
-#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
-/* Also set zlib parameters for compressing non-IDAT chunks */
-PNG_EXPORT(222, void, png_set_text_compression_level, (png_structrp png_ptr,
- int level));
-
-PNG_EXPORT(223, void, png_set_text_compression_mem_level, (png_structrp png_ptr,
- int mem_level));
-
-PNG_EXPORT(224, void, png_set_text_compression_strategy, (png_structrp png_ptr,
- int strategy));
-
-/* If PNG_WRITE_OPTIMIZE_CMF_SUPPORTED is defined, libpng will use a
- * smaller value of window_bits if it can do so safely.
- */
-PNG_EXPORT(225, void, png_set_text_compression_window_bits,
- (png_structrp png_ptr, int window_bits));
-
-PNG_EXPORT(226, void, png_set_text_compression_method, (png_structrp png_ptr,
- int method));
-#endif /* WRITE_CUSTOMIZE_ZTXT_COMPRESSION */
-#endif /* WRITE */
-
-/* These next functions are called for input/output, memory, and error
- * handling. They are in the file pngrio.c, pngwio.c, and pngerror.c,
- * and call standard C I/O routines such as fread(), fwrite(), and
- * fprintf(). These functions can be made to use other I/O routines
- * at run time for those applications that need to handle I/O in a
- * different manner by calling png_set_???_fn(). See libpng-manual.txt for
- * more information.
- */
-
-#ifdef PNG_STDIO_SUPPORTED
-/* Initialize the input/output for the PNG file to the default functions. */
-PNG_EXPORT(74, void, png_init_io, (png_structrp png_ptr, png_FILE_p fp));
-#endif
-
-/* Replace the (error and abort), and warning functions with user
- * supplied functions. If no messages are to be printed you must still
- * write and use replacement functions. The replacement error_fn should
- * still do a longjmp to the last setjmp location if you are using this
- * method of error handling. If error_fn or warning_fn is NULL, the
- * default function will be used.
- */
-
-PNG_EXPORT(75, void, png_set_error_fn, (png_structrp png_ptr,
- png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warning_fn));
-
-/* Return the user pointer associated with the error functions */
-PNG_EXPORT(76, png_voidp, png_get_error_ptr, (png_const_structrp png_ptr));
-
-/* Replace the default data output functions with a user supplied one(s).
- * If buffered output is not used, then output_flush_fn can be set to NULL.
- * If PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile time
- * output_flush_fn will be ignored (and thus can be NULL).
- * It is probably a mistake to use NULL for output_flush_fn if
- * write_data_fn is not also NULL unless you have built libpng with
- * PNG_WRITE_FLUSH_SUPPORTED undefined, because in this case libpng's
- * default flush function, which uses the standard *FILE structure, will
- * be used.
- */
-PNG_EXPORT(77, void, png_set_write_fn, (png_structrp png_ptr, png_voidp io_ptr,
- png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn));
-
-/* Replace the default data input function with a user supplied one. */
-PNG_EXPORT(78, void, png_set_read_fn, (png_structrp png_ptr, png_voidp io_ptr,
- png_rw_ptr read_data_fn));
-
-/* Return the user pointer associated with the I/O functions */
-PNG_EXPORT(79, png_voidp, png_get_io_ptr, (png_const_structrp png_ptr));
-
-PNG_EXPORT(80, void, png_set_read_status_fn, (png_structrp png_ptr,
- png_read_status_ptr read_row_fn));
-
-PNG_EXPORT(81, void, png_set_write_status_fn, (png_structrp png_ptr,
- png_write_status_ptr write_row_fn));
-
-#ifdef PNG_USER_MEM_SUPPORTED
-/* Replace the default memory allocation functions with user supplied one(s). */
-PNG_EXPORT(82, void, png_set_mem_fn, (png_structrp png_ptr, png_voidp mem_ptr,
- png_malloc_ptr malloc_fn, png_free_ptr free_fn));
-/* Return the user pointer associated with the memory functions */
-PNG_EXPORT(83, png_voidp, png_get_mem_ptr, (png_const_structrp png_ptr));
-#endif
-
-#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
-PNG_EXPORT(84, void, png_set_read_user_transform_fn, (png_structrp png_ptr,
- png_user_transform_ptr read_user_transform_fn));
-#endif
-
-#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
-PNG_EXPORT(85, void, png_set_write_user_transform_fn, (png_structrp png_ptr,
- png_user_transform_ptr write_user_transform_fn));
-#endif
-
-#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED
-PNG_EXPORT(86, void, png_set_user_transform_info, (png_structrp png_ptr,
- png_voidp user_transform_ptr, int user_transform_depth,
- int user_transform_channels));
-/* Return the user pointer associated with the user transform functions */
-PNG_EXPORT(87, png_voidp, png_get_user_transform_ptr,
- (png_const_structrp png_ptr));
-#endif
-
-#ifdef PNG_USER_TRANSFORM_INFO_SUPPORTED
-/* Return information about the row currently being processed. Note that these
- * APIs do not fail but will return unexpected results if called outside a user
- * transform callback. Also note that when transforming an interlaced image the
- * row number is the row number within the sub-image of the interlace pass, so
- * the value will increase to the height of the sub-image (not the full image)
- * then reset to 0 for the next pass.
- *
- * Use PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to
- * find the output pixel (x,y) given an interlaced sub-image pixel
- * (row,col,pass). (See below for these macros.)
- */
-PNG_EXPORT(217, png_uint_32, png_get_current_row_number, (png_const_structrp));
-PNG_EXPORT(218, png_byte, png_get_current_pass_number, (png_const_structrp));
-#endif
-
-#ifdef PNG_READ_USER_CHUNKS_SUPPORTED
-/* This callback is called only for *unknown* chunks. If
- * PNG_HANDLE_AS_UNKNOWN_SUPPORTED is set then it is possible to set known
- * chunks to be treated as unknown, however in this case the callback must do
- * any processing required by the chunk (e.g. by calling the appropriate
- * png_set_ APIs.)
- *
- * There is no write support - on write, by default, all the chunks in the
- * 'unknown' list are written in the specified position.
- *
- * The integer return from the callback function is interpreted thus:
- *
- * negative: An error occurred; png_chunk_error will be called.
- * zero: The chunk was not handled, the chunk will be saved. A critical
- * chunk will cause an error at this point unless it is to be saved.
- * positive: The chunk was handled, libpng will ignore/discard it.
- *
- * See "INTERACTION WITH USER CHUNK CALLBACKS" below for important notes about
- * how this behavior will change in libpng 1.7
- */
-PNG_EXPORT(88, void, png_set_read_user_chunk_fn, (png_structrp png_ptr,
- png_voidp user_chunk_ptr, png_user_chunk_ptr read_user_chunk_fn));
-#endif
-
-#ifdef PNG_USER_CHUNKS_SUPPORTED
-PNG_EXPORT(89, png_voidp, png_get_user_chunk_ptr, (png_const_structrp png_ptr));
-#endif
-
-#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
-/* Sets the function callbacks for the push reader, and a pointer to a
- * user-defined structure available to the callback functions.
- */
-PNG_EXPORT(90, void, png_set_progressive_read_fn, (png_structrp png_ptr,
- png_voidp progressive_ptr, png_progressive_info_ptr info_fn,
- png_progressive_row_ptr row_fn, png_progressive_end_ptr end_fn));
-
-/* Returns the user pointer associated with the push read functions */
-PNG_EXPORT(91, png_voidp, png_get_progressive_ptr,
- (png_const_structrp png_ptr));
-
-/* Function to be called when data becomes available */
-PNG_EXPORT(92, void, png_process_data, (png_structrp png_ptr,
- png_inforp info_ptr, png_bytep buffer, size_t buffer_size));
-
-/* A function which may be called *only* within png_process_data to stop the
- * processing of any more data. The function returns the number of bytes
- * remaining, excluding any that libpng has cached internally. A subsequent
- * call to png_process_data must supply these bytes again. If the argument
- * 'save' is set to true the routine will first save all the pending data and
- * will always return 0.
- */
-PNG_EXPORT(219, size_t, png_process_data_pause, (png_structrp, int save));
-
-/* A function which may be called *only* outside (after) a call to
- * png_process_data. It returns the number of bytes of data to skip in the
- * input. Normally it will return 0, but if it returns a non-zero value the
- * application must skip than number of bytes of input data and pass the
- * following data to the next call to png_process_data.
- */
-PNG_EXPORT(220, png_uint_32, png_process_data_skip, (png_structrp));
-
-/* Function that combines rows. 'new_row' is a flag that should come from
- * the callback and be non-NULL if anything needs to be done; the library
- * stores its own version of the new data internally and ignores the passed
- * in value.
- */
-PNG_EXPORT(93, void, png_progressive_combine_row, (png_const_structrp png_ptr,
- png_bytep old_row, png_const_bytep new_row));
-#endif /* PROGRESSIVE_READ */
-
-PNG_EXPORTA(94, png_voidp, png_malloc, (png_const_structrp png_ptr,
- png_alloc_size_t size), PNG_ALLOCATED);
-/* Added at libpng version 1.4.0 */
-PNG_EXPORTA(95, png_voidp, png_calloc, (png_const_structrp png_ptr,
- png_alloc_size_t size), PNG_ALLOCATED);
-
-/* Added at libpng version 1.2.4 */
-PNG_EXPORTA(96, png_voidp, png_malloc_warn, (png_const_structrp png_ptr,
- png_alloc_size_t size), PNG_ALLOCATED);
-
-/* Frees a pointer allocated by png_malloc() */
-PNG_EXPORT(97, void, png_free, (png_const_structrp png_ptr, png_voidp ptr));
-
-/* Free data that was allocated internally */
-PNG_EXPORT(98, void, png_free_data, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 free_me, int num));
-
-/* Reassign responsibility for freeing existing data, whether allocated
- * by libpng or by the application; this works on the png_info structure passed
- * in, it does not change the state for other png_info structures.
- *
- * It is unlikely that this function works correctly as of 1.6.0 and using it
- * may result either in memory leaks or double free of allocated data.
- */
-PNG_EXPORT(99, void, png_data_freer, (png_const_structrp png_ptr,
- png_inforp info_ptr, int freer, png_uint_32 mask));
-
-/* Assignments for png_data_freer */
-#define PNG_DESTROY_WILL_FREE_DATA 1
-#define PNG_SET_WILL_FREE_DATA 1
-#define PNG_USER_WILL_FREE_DATA 2
-/* Flags for png_ptr->free_me and info_ptr->free_me */
-#define PNG_FREE_HIST 0x0008U
-#define PNG_FREE_ICCP 0x0010U
-#define PNG_FREE_SPLT 0x0020U
-#define PNG_FREE_ROWS 0x0040U
-#define PNG_FREE_PCAL 0x0080U
-#define PNG_FREE_SCAL 0x0100U
-#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
-# define PNG_FREE_UNKN 0x0200U
-#endif
-/* PNG_FREE_LIST 0x0400U removed in 1.6.0 because it is ignored */
-#define PNG_FREE_PLTE 0x1000U
-#define PNG_FREE_TRNS 0x2000U
-#define PNG_FREE_TEXT 0x4000U
-#define PNG_FREE_EXIF 0x8000U /* Added at libpng-1.6.31 */
-#define PNG_FREE_ALL 0xffffU
-#define PNG_FREE_MUL 0x4220U /* PNG_FREE_SPLT|PNG_FREE_TEXT|PNG_FREE_UNKN */
-
-#ifdef PNG_USER_MEM_SUPPORTED
-PNG_EXPORTA(100, png_voidp, png_malloc_default, (png_const_structrp png_ptr,
- png_alloc_size_t size), PNG_ALLOCATED PNG_DEPRECATED);
-PNG_EXPORTA(101, void, png_free_default, (png_const_structrp png_ptr,
- png_voidp ptr), PNG_DEPRECATED);
-#endif
-
-#ifdef PNG_ERROR_TEXT_SUPPORTED
-/* Fatal error in PNG image of libpng - can't continue */
-PNG_EXPORTA(102, void, png_error, (png_const_structrp png_ptr,
- png_const_charp error_message), PNG_NORETURN);
-
-/* The same, but the chunk name is prepended to the error string. */
-PNG_EXPORTA(103, void, png_chunk_error, (png_const_structrp png_ptr,
- png_const_charp error_message), PNG_NORETURN);
-
-#else
-/* Fatal error in PNG image of libpng - can't continue */
-PNG_EXPORTA(104, void, png_err, (png_const_structrp png_ptr), PNG_NORETURN);
-# define png_error(s1,s2) png_err(s1)
-# define png_chunk_error(s1,s2) png_err(s1)
-#endif
-
-#ifdef PNG_WARNINGS_SUPPORTED
-/* Non-fatal error in libpng. Can continue, but may have a problem. */
-PNG_EXPORT(105, void, png_warning, (png_const_structrp png_ptr,
- png_const_charp warning_message));
-
-/* Non-fatal error in libpng, chunk name is prepended to message. */
-PNG_EXPORT(106, void, png_chunk_warning, (png_const_structrp png_ptr,
- png_const_charp warning_message));
-#else
-# define png_warning(s1,s2) ((void)(s1))
-# define png_chunk_warning(s1,s2) ((void)(s1))
-#endif
-
-#ifdef PNG_BENIGN_ERRORS_SUPPORTED
-/* Benign error in libpng. Can continue, but may have a problem.
- * User can choose whether to handle as a fatal error or as a warning. */
-PNG_EXPORT(107, void, png_benign_error, (png_const_structrp png_ptr,
- png_const_charp warning_message));
-
-#ifdef PNG_READ_SUPPORTED
-/* Same, chunk name is prepended to message (only during read) */
-PNG_EXPORT(108, void, png_chunk_benign_error, (png_const_structrp png_ptr,
- png_const_charp warning_message));
-#endif
-
-PNG_EXPORT(109, void, png_set_benign_errors,
- (png_structrp png_ptr, int allowed));
-#else
-# ifdef PNG_ALLOW_BENIGN_ERRORS
-# define png_benign_error png_warning
-# define png_chunk_benign_error png_chunk_warning
-# else
-# define png_benign_error png_error
-# define png_chunk_benign_error png_chunk_error
-# endif
-#endif
-
-/* The png_set_<chunk> functions are for storing values in the png_info_struct.
- * Similarly, the png_get_<chunk> calls are used to read values from the
- * png_info_struct, either storing the parameters in the passed variables, or
- * setting pointers into the png_info_struct where the data is stored. The
- * png_get_<chunk> functions return a non-zero value if the data was available
- * in info_ptr, or return zero and do not change any of the parameters if the
- * data was not available.
- *
- * These functions should be used instead of directly accessing png_info
- * to avoid problems with future changes in the size and internal layout of
- * png_info_struct.
- */
-/* Returns "flag" if chunk data is valid in info_ptr. */
-PNG_EXPORT(110, png_uint_32, png_get_valid, (png_const_structrp png_ptr,
- png_const_inforp info_ptr, png_uint_32 flag));
-
-/* Returns number of bytes needed to hold a transformed row. */
-PNG_EXPORT(111, size_t, png_get_rowbytes, (png_const_structrp png_ptr,
- png_const_inforp info_ptr));
-
-#ifdef PNG_INFO_IMAGE_SUPPORTED
-/* Returns row_pointers, which is an array of pointers to scanlines that was
- * returned from png_read_png().
- */
-PNG_EXPORT(112, png_bytepp, png_get_rows, (png_const_structrp png_ptr,
- png_const_inforp info_ptr));
-
-/* Set row_pointers, which is an array of pointers to scanlines for use
- * by png_write_png().
- */
-PNG_EXPORT(113, void, png_set_rows, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_bytepp row_pointers));
-#endif
-
-/* Returns number of color channels in image. */
-PNG_EXPORT(114, png_byte, png_get_channels, (png_const_structrp png_ptr,
- png_const_inforp info_ptr));
-
-#ifdef PNG_EASY_ACCESS_SUPPORTED
-/* Returns image width in pixels. */
-PNG_EXPORT(115, png_uint_32, png_get_image_width, (png_const_structrp png_ptr,
- png_const_inforp info_ptr));
-
-/* Returns image height in pixels. */
-PNG_EXPORT(116, png_uint_32, png_get_image_height, (png_const_structrp png_ptr,
- png_const_inforp info_ptr));
-
-/* Returns image bit_depth. */
-PNG_EXPORT(117, png_byte, png_get_bit_depth, (png_const_structrp png_ptr,
- png_const_inforp info_ptr));
-
-/* Returns image color_type. */
-PNG_EXPORT(118, png_byte, png_get_color_type, (png_const_structrp png_ptr,
- png_const_inforp info_ptr));
-
-/* Returns image filter_type. */
-PNG_EXPORT(119, png_byte, png_get_filter_type, (png_const_structrp png_ptr,
- png_const_inforp info_ptr));
-
-/* Returns image interlace_type. */
-PNG_EXPORT(120, png_byte, png_get_interlace_type, (png_const_structrp png_ptr,
- png_const_inforp info_ptr));
-
-/* Returns image compression_type. */
-PNG_EXPORT(121, png_byte, png_get_compression_type, (png_const_structrp png_ptr,
- png_const_inforp info_ptr));
-
-/* Returns image resolution in pixels per meter, from pHYs chunk data. */
-PNG_EXPORT(122, png_uint_32, png_get_pixels_per_meter,
- (png_const_structrp png_ptr, png_const_inforp info_ptr));
-PNG_EXPORT(123, png_uint_32, png_get_x_pixels_per_meter,
- (png_const_structrp png_ptr, png_const_inforp info_ptr));
-PNG_EXPORT(124, png_uint_32, png_get_y_pixels_per_meter,
- (png_const_structrp png_ptr, png_const_inforp info_ptr));
-
-/* Returns pixel aspect ratio, computed from pHYs chunk data. */
-PNG_FP_EXPORT(125, float, png_get_pixel_aspect_ratio,
- (png_const_structrp png_ptr, png_const_inforp info_ptr))
-PNG_FIXED_EXPORT(210, png_fixed_point, png_get_pixel_aspect_ratio_fixed,
- (png_const_structrp png_ptr, png_const_inforp info_ptr))
-
-/* Returns image x, y offset in pixels or microns, from oFFs chunk data. */
-PNG_EXPORT(126, png_int_32, png_get_x_offset_pixels,
- (png_const_structrp png_ptr, png_const_inforp info_ptr));
-PNG_EXPORT(127, png_int_32, png_get_y_offset_pixels,
- (png_const_structrp png_ptr, png_const_inforp info_ptr));
-PNG_EXPORT(128, png_int_32, png_get_x_offset_microns,
- (png_const_structrp png_ptr, png_const_inforp info_ptr));
-PNG_EXPORT(129, png_int_32, png_get_y_offset_microns,
- (png_const_structrp png_ptr, png_const_inforp info_ptr));
-
-#endif /* EASY_ACCESS */
-
-#ifdef PNG_READ_SUPPORTED
-/* Returns pointer to signature string read from PNG header */
-PNG_EXPORT(130, png_const_bytep, png_get_signature, (png_const_structrp png_ptr,
- png_const_inforp info_ptr));
-#endif
-
-#ifdef PNG_bKGD_SUPPORTED
-PNG_EXPORT(131, png_uint_32, png_get_bKGD, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_color_16p *background));
-#endif
-
-#ifdef PNG_bKGD_SUPPORTED
-PNG_EXPORT(132, void, png_set_bKGD, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_const_color_16p background));
-#endif
-
-#ifdef PNG_cHRM_SUPPORTED
-PNG_FP_EXPORT(133, png_uint_32, png_get_cHRM, (png_const_structrp png_ptr,
- png_const_inforp info_ptr, double *white_x, double *white_y, double *red_x,
- double *red_y, double *green_x, double *green_y, double *blue_x,
- double *blue_y))
-PNG_FP_EXPORT(230, png_uint_32, png_get_cHRM_XYZ, (png_const_structrp png_ptr,
- png_const_inforp info_ptr, double *red_X, double *red_Y, double *red_Z,
- double *green_X, double *green_Y, double *green_Z, double *blue_X,
- double *blue_Y, double *blue_Z))
-PNG_FIXED_EXPORT(134, png_uint_32, png_get_cHRM_fixed,
- (png_const_structrp png_ptr, png_const_inforp info_ptr,
- png_fixed_point *int_white_x, png_fixed_point *int_white_y,
- png_fixed_point *int_red_x, png_fixed_point *int_red_y,
- png_fixed_point *int_green_x, png_fixed_point *int_green_y,
- png_fixed_point *int_blue_x, png_fixed_point *int_blue_y))
-PNG_FIXED_EXPORT(231, png_uint_32, png_get_cHRM_XYZ_fixed,
- (png_const_structrp png_ptr, png_const_inforp info_ptr,
- png_fixed_point *int_red_X, png_fixed_point *int_red_Y,
- png_fixed_point *int_red_Z, png_fixed_point *int_green_X,
- png_fixed_point *int_green_Y, png_fixed_point *int_green_Z,
- png_fixed_point *int_blue_X, png_fixed_point *int_blue_Y,
- png_fixed_point *int_blue_Z))
-#endif
-
-#ifdef PNG_cHRM_SUPPORTED
-PNG_FP_EXPORT(135, void, png_set_cHRM, (png_const_structrp png_ptr,
- png_inforp info_ptr,
- double white_x, double white_y, double red_x, double red_y, double green_x,
- double green_y, double blue_x, double blue_y))
-PNG_FP_EXPORT(232, void, png_set_cHRM_XYZ, (png_const_structrp png_ptr,
- png_inforp info_ptr, double red_X, double red_Y, double red_Z,
- double green_X, double green_Y, double green_Z, double blue_X,
- double blue_Y, double blue_Z))
-PNG_FIXED_EXPORT(136, void, png_set_cHRM_fixed, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_fixed_point int_white_x,
- png_fixed_point int_white_y, png_fixed_point int_red_x,
- png_fixed_point int_red_y, png_fixed_point int_green_x,
- png_fixed_point int_green_y, png_fixed_point int_blue_x,
- png_fixed_point int_blue_y))
-PNG_FIXED_EXPORT(233, void, png_set_cHRM_XYZ_fixed, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_fixed_point int_red_X, png_fixed_point int_red_Y,
- png_fixed_point int_red_Z, png_fixed_point int_green_X,
- png_fixed_point int_green_Y, png_fixed_point int_green_Z,
- png_fixed_point int_blue_X, png_fixed_point int_blue_Y,
- png_fixed_point int_blue_Z))
-#endif
-
-#ifdef PNG_eXIf_SUPPORTED
-PNG_EXPORT(246, png_uint_32, png_get_eXIf, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_bytep *exif));
-PNG_EXPORT(247, void, png_set_eXIf, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_bytep exif));
-
-PNG_EXPORT(248, png_uint_32, png_get_eXIf_1, (png_const_structrp png_ptr,
- png_const_inforp info_ptr, png_uint_32 *num_exif, png_bytep *exif));
-PNG_EXPORT(249, void, png_set_eXIf_1, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 num_exif, png_bytep exif));
-#endif
-
-#ifdef PNG_gAMA_SUPPORTED
-PNG_FP_EXPORT(137, png_uint_32, png_get_gAMA, (png_const_structrp png_ptr,
- png_const_inforp info_ptr, double *file_gamma))
-PNG_FIXED_EXPORT(138, png_uint_32, png_get_gAMA_fixed,
- (png_const_structrp png_ptr, png_const_inforp info_ptr,
- png_fixed_point *int_file_gamma))
-#endif
-
-#ifdef PNG_gAMA_SUPPORTED
-PNG_FP_EXPORT(139, void, png_set_gAMA, (png_const_structrp png_ptr,
- png_inforp info_ptr, double file_gamma))
-PNG_FIXED_EXPORT(140, void, png_set_gAMA_fixed, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_fixed_point int_file_gamma))
-#endif
-
-#ifdef PNG_hIST_SUPPORTED
-PNG_EXPORT(141, png_uint_32, png_get_hIST, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_uint_16p *hist));
-PNG_EXPORT(142, void, png_set_hIST, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_const_uint_16p hist));
-#endif
-
-PNG_EXPORT(143, png_uint_32, png_get_IHDR, (png_const_structrp png_ptr,
- png_const_inforp info_ptr, png_uint_32 *width, png_uint_32 *height,
- int *bit_depth, int *color_type, int *interlace_method,
- int *compression_method, int *filter_method));
-
-PNG_EXPORT(144, void, png_set_IHDR, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 width, png_uint_32 height, int bit_depth,
- int color_type, int interlace_method, int compression_method,
- int filter_method));
-
-#ifdef PNG_oFFs_SUPPORTED
-PNG_EXPORT(145, png_uint_32, png_get_oFFs, (png_const_structrp png_ptr,
- png_const_inforp info_ptr, png_int_32 *offset_x, png_int_32 *offset_y,
- int *unit_type));
-#endif
-
-#ifdef PNG_oFFs_SUPPORTED
-PNG_EXPORT(146, void, png_set_oFFs, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_int_32 offset_x, png_int_32 offset_y,
- int unit_type));
-#endif
-
-#ifdef PNG_pCAL_SUPPORTED
-PNG_EXPORT(147, png_uint_32, png_get_pCAL, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_charp *purpose, png_int_32 *X0,
- png_int_32 *X1, int *type, int *nparams, png_charp *units,
- png_charpp *params));
-#endif
-
-#ifdef PNG_pCAL_SUPPORTED
-PNG_EXPORT(148, void, png_set_pCAL, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_const_charp purpose, png_int_32 X0, png_int_32 X1,
- int type, int nparams, png_const_charp units, png_charpp params));
-#endif
-
-#ifdef PNG_pHYs_SUPPORTED
-PNG_EXPORT(149, png_uint_32, png_get_pHYs, (png_const_structrp png_ptr,
- png_const_inforp info_ptr, png_uint_32 *res_x, png_uint_32 *res_y,
- int *unit_type));
-#endif
-
-#ifdef PNG_pHYs_SUPPORTED
-PNG_EXPORT(150, void, png_set_pHYs, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 res_x, png_uint_32 res_y, int unit_type));
-#endif
-
-PNG_EXPORT(151, png_uint_32, png_get_PLTE, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_colorp *palette, int *num_palette));
-
-PNG_EXPORT(152, void, png_set_PLTE, (png_structrp png_ptr,
- png_inforp info_ptr, png_const_colorp palette, int num_palette));
-
-#ifdef PNG_sBIT_SUPPORTED
-PNG_EXPORT(153, png_uint_32, png_get_sBIT, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_color_8p *sig_bit));
-#endif
-
-#ifdef PNG_sBIT_SUPPORTED
-PNG_EXPORT(154, void, png_set_sBIT, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_const_color_8p sig_bit));
-#endif
-
-#ifdef PNG_sRGB_SUPPORTED
-PNG_EXPORT(155, png_uint_32, png_get_sRGB, (png_const_structrp png_ptr,
- png_const_inforp info_ptr, int *file_srgb_intent));
-#endif
-
-#ifdef PNG_sRGB_SUPPORTED
-PNG_EXPORT(156, void, png_set_sRGB, (png_const_structrp png_ptr,
- png_inforp info_ptr, int srgb_intent));
-PNG_EXPORT(157, void, png_set_sRGB_gAMA_and_cHRM, (png_const_structrp png_ptr,
- png_inforp info_ptr, int srgb_intent));
-#endif
-
-#ifdef PNG_iCCP_SUPPORTED
-PNG_EXPORT(158, png_uint_32, png_get_iCCP, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_charpp name, int *compression_type,
- png_bytepp profile, png_uint_32 *proflen));
-#endif
-
-#ifdef PNG_iCCP_SUPPORTED
-PNG_EXPORT(159, void, png_set_iCCP, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_const_charp name, int compression_type,
- png_const_bytep profile, png_uint_32 proflen));
-#endif
-
-#ifdef PNG_sPLT_SUPPORTED
-PNG_EXPORT(160, int, png_get_sPLT, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_sPLT_tpp entries));
-#endif
-
-#ifdef PNG_sPLT_SUPPORTED
-PNG_EXPORT(161, void, png_set_sPLT, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_const_sPLT_tp entries, int nentries));
-#endif
-
-#ifdef PNG_TEXT_SUPPORTED
-/* png_get_text also returns the number of text chunks in *num_text */
-PNG_EXPORT(162, int, png_get_text, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_textp *text_ptr, int *num_text));
-#endif
-
-/* Note while png_set_text() will accept a structure whose text,
- * language, and translated keywords are NULL pointers, the structure
- * returned by png_get_text will always contain regular
- * zero-terminated C strings. They might be empty strings but
- * they will never be NULL pointers.
- */
-
-#ifdef PNG_TEXT_SUPPORTED
-PNG_EXPORT(163, void, png_set_text, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_const_textp text_ptr, int num_text));
-#endif
-
-#ifdef PNG_tIME_SUPPORTED
-PNG_EXPORT(164, png_uint_32, png_get_tIME, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_timep *mod_time));
-#endif
-
-#ifdef PNG_tIME_SUPPORTED
-PNG_EXPORT(165, void, png_set_tIME, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_const_timep mod_time));
-#endif
-
-#ifdef PNG_tRNS_SUPPORTED
-PNG_EXPORT(166, png_uint_32, png_get_tRNS, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_bytep *trans_alpha, int *num_trans,
- png_color_16p *trans_color));
-#endif
-
-#ifdef PNG_tRNS_SUPPORTED
-PNG_EXPORT(167, void, png_set_tRNS, (png_structrp png_ptr,
- png_inforp info_ptr, png_const_bytep trans_alpha, int num_trans,
- png_const_color_16p trans_color));
-#endif
-
-#ifdef PNG_sCAL_SUPPORTED
-PNG_FP_EXPORT(168, png_uint_32, png_get_sCAL, (png_const_structrp png_ptr,
- png_const_inforp info_ptr, int *unit, double *width, double *height))
-#if defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) || \
- defined(PNG_FLOATING_POINT_SUPPORTED)
-/* NOTE: this API is currently implemented using floating point arithmetic,
- * consequently it can only be used on systems with floating point support.
- * In any case the range of values supported by png_fixed_point is small and it
- * is highly recommended that png_get_sCAL_s be used instead.
- */
-PNG_FIXED_EXPORT(214, png_uint_32, png_get_sCAL_fixed,
- (png_const_structrp png_ptr, png_const_inforp info_ptr, int *unit,
- png_fixed_point *width, png_fixed_point *height))
-#endif
-PNG_EXPORT(169, png_uint_32, png_get_sCAL_s,
- (png_const_structrp png_ptr, png_const_inforp info_ptr, int *unit,
- png_charpp swidth, png_charpp sheight));
-
-PNG_FP_EXPORT(170, void, png_set_sCAL, (png_const_structrp png_ptr,
- png_inforp info_ptr, int unit, double width, double height))
-PNG_FIXED_EXPORT(213, void, png_set_sCAL_fixed, (png_const_structrp png_ptr,
- png_inforp info_ptr, int unit, png_fixed_point width,
- png_fixed_point height))
-PNG_EXPORT(171, void, png_set_sCAL_s, (png_const_structrp png_ptr,
- png_inforp info_ptr, int unit,
- png_const_charp swidth, png_const_charp sheight));
-#endif /* sCAL */
-
-#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
-/* Provide the default handling for all unknown chunks or, optionally, for
- * specific unknown chunks.
- *
- * NOTE: prior to 1.6.0 the handling specified for particular chunks on read was
- * ignored and the default was used, the per-chunk setting only had an effect on
- * write. If you wish to have chunk-specific handling on read in code that must
- * work on earlier versions you must use a user chunk callback to specify the
- * desired handling (keep or discard.)
- *
- * The 'keep' parameter is a PNG_HANDLE_CHUNK_ value as listed below. The
- * parameter is interpreted as follows:
- *
- * READ:
- * PNG_HANDLE_CHUNK_AS_DEFAULT:
- * Known chunks: do normal libpng processing, do not keep the chunk (but
- * see the comments below about PNG_HANDLE_AS_UNKNOWN_SUPPORTED)
- * Unknown chunks: for a specific chunk use the global default, when used
- * as the default discard the chunk data.
- * PNG_HANDLE_CHUNK_NEVER:
- * Discard the chunk data.
- * PNG_HANDLE_CHUNK_IF_SAFE:
- * Keep the chunk data if the chunk is not critical else raise a chunk
- * error.
- * PNG_HANDLE_CHUNK_ALWAYS:
- * Keep the chunk data.
- *
- * If the chunk data is saved it can be retrieved using png_get_unknown_chunks,
- * below. Notice that specifying "AS_DEFAULT" as a global default is equivalent
- * to specifying "NEVER", however when "AS_DEFAULT" is used for specific chunks
- * it simply resets the behavior to the libpng default.
- *
- * INTERACTION WITH USER CHUNK CALLBACKS:
- * The per-chunk handling is always used when there is a png_user_chunk_ptr
- * callback and the callback returns 0; the chunk is then always stored *unless*
- * it is critical and the per-chunk setting is other than ALWAYS. Notice that
- * the global default is *not* used in this case. (In effect the per-chunk
- * value is incremented to at least IF_SAFE.)
- *
- * IMPORTANT NOTE: this behavior will change in libpng 1.7 - the global and
- * per-chunk defaults will be honored. If you want to preserve the current
- * behavior when your callback returns 0 you must set PNG_HANDLE_CHUNK_IF_SAFE
- * as the default - if you don't do this libpng 1.6 will issue a warning.
- *
- * If you want unhandled unknown chunks to be discarded in libpng 1.6 and
- * earlier simply return '1' (handled).
- *
- * PNG_HANDLE_AS_UNKNOWN_SUPPORTED:
- * If this is *not* set known chunks will always be handled by libpng and
- * will never be stored in the unknown chunk list. Known chunks listed to
- * png_set_keep_unknown_chunks will have no effect. If it is set then known
- * chunks listed with a keep other than AS_DEFAULT will *never* be processed
- * by libpng, in addition critical chunks must either be processed by the
- * callback or saved.
- *
- * The IHDR and IEND chunks must not be listed. Because this turns off the
- * default handling for chunks that would otherwise be recognized the
- * behavior of libpng transformations may well become incorrect!
- *
- * WRITE:
- * When writing chunks the options only apply to the chunks specified by
- * png_set_unknown_chunks (below), libpng will *always* write known chunks
- * required by png_set_ calls and will always write the core critical chunks
- * (as required for PLTE).
- *
- * Each chunk in the png_set_unknown_chunks list is looked up in the
- * png_set_keep_unknown_chunks list to find the keep setting, this is then
- * interpreted as follows:
- *
- * PNG_HANDLE_CHUNK_AS_DEFAULT:
- * Write safe-to-copy chunks and write other chunks if the global
- * default is set to _ALWAYS, otherwise don't write this chunk.
- * PNG_HANDLE_CHUNK_NEVER:
- * Do not write the chunk.
- * PNG_HANDLE_CHUNK_IF_SAFE:
- * Write the chunk if it is safe-to-copy, otherwise do not write it.
- * PNG_HANDLE_CHUNK_ALWAYS:
- * Write the chunk.
- *
- * Note that the default behavior is effectively the opposite of the read case -
- * in read unknown chunks are not stored by default, in write they are written
- * by default. Also the behavior of PNG_HANDLE_CHUNK_IF_SAFE is very different
- * - on write the safe-to-copy bit is checked, on read the critical bit is
- * checked and on read if the chunk is critical an error will be raised.
- *
- * num_chunks:
- * ===========
- * If num_chunks is positive, then the "keep" parameter specifies the manner
- * for handling only those chunks appearing in the chunk_list array,
- * otherwise the chunk list array is ignored.
- *
- * If num_chunks is 0 the "keep" parameter specifies the default behavior for
- * unknown chunks, as described above.
- *
- * If num_chunks is negative, then the "keep" parameter specifies the manner
- * for handling all unknown chunks plus all chunks recognized by libpng
- * except for the IHDR, PLTE, tRNS, IDAT, and IEND chunks (which continue to
- * be processed by libpng.
- */
-#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
-PNG_EXPORT(172, void, png_set_keep_unknown_chunks, (png_structrp png_ptr,
- int keep, png_const_bytep chunk_list, int num_chunks));
-#endif /* HANDLE_AS_UNKNOWN */
-
-/* The "keep" PNG_HANDLE_CHUNK_ parameter for the specified chunk is returned;
- * the result is therefore true (non-zero) if special handling is required,
- * false for the default handling.
- */
-PNG_EXPORT(173, int, png_handle_as_unknown, (png_const_structrp png_ptr,
- png_const_bytep chunk_name));
-#endif /* SET_UNKNOWN_CHUNKS */
-
-#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
-PNG_EXPORT(174, void, png_set_unknown_chunks, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_const_unknown_chunkp unknowns,
- int num_unknowns));
- /* NOTE: prior to 1.6.0 this routine set the 'location' field of the added
- * unknowns to the location currently stored in the png_struct. This is
- * invariably the wrong value on write. To fix this call the following API
- * for each chunk in the list with the correct location. If you know your
- * code won't be compiled on earlier versions you can rely on
- * png_set_unknown_chunks(write-ptr, png_get_unknown_chunks(read-ptr)) doing
- * the correct thing.
- */
-
-PNG_EXPORT(175, void, png_set_unknown_chunk_location,
- (png_const_structrp png_ptr, png_inforp info_ptr, int chunk, int location));
-
-PNG_EXPORT(176, int, png_get_unknown_chunks, (png_const_structrp png_ptr,
- png_inforp info_ptr, png_unknown_chunkpp entries));
-#endif
-
-/* Png_free_data() will turn off the "valid" flag for anything it frees.
- * If you need to turn it off for a chunk that your application has freed,
- * you can use png_set_invalid(png_ptr, info_ptr, PNG_INFO_CHNK);
- */
-PNG_EXPORT(177, void, png_set_invalid, (png_const_structrp png_ptr,
- png_inforp info_ptr, int mask));
-
-#ifdef PNG_INFO_IMAGE_SUPPORTED
-/* The "params" pointer is currently not used and is for future expansion. */
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-PNG_EXPORT(178, void, png_read_png, (png_structrp png_ptr, png_inforp info_ptr,
- int transforms, png_voidp params));
-#endif
-#ifdef PNG_WRITE_SUPPORTED
-PNG_EXPORT(179, void, png_write_png, (png_structrp png_ptr, png_inforp info_ptr,
- int transforms, png_voidp params));
-#endif
-#endif
-
-PNG_EXPORT(180, png_const_charp, png_get_copyright,
- (png_const_structrp png_ptr));
-PNG_EXPORT(181, png_const_charp, png_get_header_ver,
- (png_const_structrp png_ptr));
-PNG_EXPORT(182, png_const_charp, png_get_header_version,
- (png_const_structrp png_ptr));
-PNG_EXPORT(183, png_const_charp, png_get_libpng_ver,
- (png_const_structrp png_ptr));
-
-#ifdef PNG_MNG_FEATURES_SUPPORTED
-PNG_EXPORT(184, png_uint_32, png_permit_mng_features, (png_structrp png_ptr,
- png_uint_32 mng_features_permitted));
-#endif
-
-/* For use in png_set_keep_unknown, added to version 1.2.6 */
-#define PNG_HANDLE_CHUNK_AS_DEFAULT 0
-#define PNG_HANDLE_CHUNK_NEVER 1
-#define PNG_HANDLE_CHUNK_IF_SAFE 2
-#define PNG_HANDLE_CHUNK_ALWAYS 3
-#define PNG_HANDLE_CHUNK_LAST 4
-
-/* Strip the prepended error numbers ("#nnn ") from error and warning
- * messages before passing them to the error or warning handler.
- */
-#ifdef PNG_ERROR_NUMBERS_SUPPORTED
-PNG_EXPORT(185, void, png_set_strip_error_numbers, (png_structrp png_ptr,
- png_uint_32 strip_mode));
-#endif
-
-/* Added in libpng-1.2.6 */
-#ifdef PNG_SET_USER_LIMITS_SUPPORTED
-PNG_EXPORT(186, void, png_set_user_limits, (png_structrp png_ptr,
- png_uint_32 user_width_max, png_uint_32 user_height_max));
-PNG_EXPORT(187, png_uint_32, png_get_user_width_max,
- (png_const_structrp png_ptr));
-PNG_EXPORT(188, png_uint_32, png_get_user_height_max,
- (png_const_structrp png_ptr));
-/* Added in libpng-1.4.0 */
-PNG_EXPORT(189, void, png_set_chunk_cache_max, (png_structrp png_ptr,
- png_uint_32 user_chunk_cache_max));
-PNG_EXPORT(190, png_uint_32, png_get_chunk_cache_max,
- (png_const_structrp png_ptr));
-/* Added in libpng-1.4.1 */
-PNG_EXPORT(191, void, png_set_chunk_malloc_max, (png_structrp png_ptr,
- png_alloc_size_t user_chunk_cache_max));
-PNG_EXPORT(192, png_alloc_size_t, png_get_chunk_malloc_max,
- (png_const_structrp png_ptr));
-#endif
-
-#if defined(PNG_INCH_CONVERSIONS_SUPPORTED)
-PNG_EXPORT(193, png_uint_32, png_get_pixels_per_inch,
- (png_const_structrp png_ptr, png_const_inforp info_ptr));
-
-PNG_EXPORT(194, png_uint_32, png_get_x_pixels_per_inch,
- (png_const_structrp png_ptr, png_const_inforp info_ptr));
-
-PNG_EXPORT(195, png_uint_32, png_get_y_pixels_per_inch,
- (png_const_structrp png_ptr, png_const_inforp info_ptr));
-
-PNG_FP_EXPORT(196, float, png_get_x_offset_inches,
- (png_const_structrp png_ptr, png_const_inforp info_ptr))
-#ifdef PNG_FIXED_POINT_SUPPORTED /* otherwise not implemented. */
-PNG_FIXED_EXPORT(211, png_fixed_point, png_get_x_offset_inches_fixed,
- (png_const_structrp png_ptr, png_const_inforp info_ptr))
-#endif
-
-PNG_FP_EXPORT(197, float, png_get_y_offset_inches, (png_const_structrp png_ptr,
- png_const_inforp info_ptr))
-#ifdef PNG_FIXED_POINT_SUPPORTED /* otherwise not implemented. */
-PNG_FIXED_EXPORT(212, png_fixed_point, png_get_y_offset_inches_fixed,
- (png_const_structrp png_ptr, png_const_inforp info_ptr))
-#endif
-
-# ifdef PNG_pHYs_SUPPORTED
-PNG_EXPORT(198, png_uint_32, png_get_pHYs_dpi, (png_const_structrp png_ptr,
- png_const_inforp info_ptr, png_uint_32 *res_x, png_uint_32 *res_y,
- int *unit_type));
-# endif /* pHYs */
-#endif /* INCH_CONVERSIONS */
-
-/* Added in libpng-1.4.0 */
-#ifdef PNG_IO_STATE_SUPPORTED
-PNG_EXPORT(199, png_uint_32, png_get_io_state, (png_const_structrp png_ptr));
-
-/* Removed from libpng 1.6; use png_get_io_chunk_type. */
-PNG_REMOVED(200, png_const_bytep, png_get_io_chunk_name, (png_structrp png_ptr),
- PNG_DEPRECATED)
-
-PNG_EXPORT(216, png_uint_32, png_get_io_chunk_type,
- (png_const_structrp png_ptr));
-
-/* The flags returned by png_get_io_state() are the following: */
-# define PNG_IO_NONE 0x0000 /* no I/O at this moment */
-# define PNG_IO_READING 0x0001 /* currently reading */
-# define PNG_IO_WRITING 0x0002 /* currently writing */
-# define PNG_IO_SIGNATURE 0x0010 /* currently at the file signature */
-# define PNG_IO_CHUNK_HDR 0x0020 /* currently at the chunk header */
-# define PNG_IO_CHUNK_DATA 0x0040 /* currently at the chunk data */
-# define PNG_IO_CHUNK_CRC 0x0080 /* currently at the chunk crc */
-# define PNG_IO_MASK_OP 0x000f /* current operation: reading/writing */
-# define PNG_IO_MASK_LOC 0x00f0 /* current location: sig/hdr/data/crc */
-#endif /* IO_STATE */
-
-/* Interlace support. The following macros are always defined so that if
- * libpng interlace handling is turned off the macros may be used to handle
- * interlaced images within the application.
- */
-#define PNG_INTERLACE_ADAM7_PASSES 7
-
-/* Two macros to return the first row and first column of the original,
- * full, image which appears in a given pass. 'pass' is in the range 0
- * to 6 and the result is in the range 0 to 7.
- */
-#define PNG_PASS_START_ROW(pass) (((1&~(pass))<<(3-((pass)>>1)))&7)
-#define PNG_PASS_START_COL(pass) (((1& (pass))<<(3-(((pass)+1)>>1)))&7)
-
-/* A macro to return the offset between pixels in the output row for a pair of
- * pixels in the input - effectively the inverse of the 'COL_SHIFT' macro that
- * follows. Note that ROW_OFFSET is the offset from one row to the next whereas
- * COL_OFFSET is from one column to the next, within a row.
- */
-#define PNG_PASS_ROW_OFFSET(pass) ((pass)>2?(8>>(((pass)-1)>>1)):8)
-#define PNG_PASS_COL_OFFSET(pass) (1<<((7-(pass))>>1))
-
-/* Two macros to help evaluate the number of rows or columns in each
- * pass. This is expressed as a shift - effectively log2 of the number or
- * rows or columns in each 8x8 tile of the original image.
- */
-#define PNG_PASS_ROW_SHIFT(pass) ((pass)>2?(8-(pass))>>1:3)
-#define PNG_PASS_COL_SHIFT(pass) ((pass)>1?(7-(pass))>>1:3)
-
-/* Hence two macros to determine the number of rows or columns in a given
- * pass of an image given its height or width. In fact these macros may
- * return non-zero even though the sub-image is empty, because the other
- * dimension may be empty for a small image.
- */
-#define PNG_PASS_ROWS(height, pass) (((height)+(((1<<PNG_PASS_ROW_SHIFT(pass))\
- -1)-PNG_PASS_START_ROW(pass)))>>PNG_PASS_ROW_SHIFT(pass))
-#define PNG_PASS_COLS(width, pass) (((width)+(((1<<PNG_PASS_COL_SHIFT(pass))\
- -1)-PNG_PASS_START_COL(pass)))>>PNG_PASS_COL_SHIFT(pass))
-
-/* For the reader row callbacks (both progressive and sequential) it is
- * necessary to find the row in the output image given a row in an interlaced
- * image, so two more macros:
- */
-#define PNG_ROW_FROM_PASS_ROW(y_in, pass) \
- (((y_in)<<PNG_PASS_ROW_SHIFT(pass))+PNG_PASS_START_ROW(pass))
-#define PNG_COL_FROM_PASS_COL(x_in, pass) \
- (((x_in)<<PNG_PASS_COL_SHIFT(pass))+PNG_PASS_START_COL(pass))
-
-/* Two macros which return a boolean (0 or 1) saying whether the given row
- * or column is in a particular pass. These use a common utility macro that
- * returns a mask for a given pass - the offset 'off' selects the row or
- * column version. The mask has the appropriate bit set for each column in
- * the tile.
- */
-#define PNG_PASS_MASK(pass,off) ( \
- ((0x110145AF>>(((7-(off))-(pass))<<2)) & 0xF) | \
- ((0x01145AF0>>(((7-(off))-(pass))<<2)) & 0xF0))
-
-#define PNG_ROW_IN_INTERLACE_PASS(y, pass) \
- ((PNG_PASS_MASK(pass,0) >> ((y)&7)) & 1)
-#define PNG_COL_IN_INTERLACE_PASS(x, pass) \
- ((PNG_PASS_MASK(pass,1) >> ((x)&7)) & 1)
-
-#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
-/* With these routines we avoid an integer divide, which will be slower on
- * most machines. However, it does take more operations than the corresponding
- * divide method, so it may be slower on a few RISC systems. There are two
- * shifts (by 8 or 16 bits) and an addition, versus a single integer divide.
- *
- * Note that the rounding factors are NOT supposed to be the same! 128 and
- * 32768 are correct for the NODIV code; 127 and 32767 are correct for the
- * standard method.
- *
- * [Optimized code by Greg Roelofs and Mark Adler...blame us for bugs. :-) ]
- */
-
- /* fg and bg should be in `gamma 1.0' space; alpha is the opacity */
-
-# define png_composite(composite, fg, alpha, bg) \
- { \
- png_uint_16 temp = (png_uint_16)((png_uint_16)(fg) \
- * (png_uint_16)(alpha) \
- + (png_uint_16)(bg)*(png_uint_16)(255 \
- - (png_uint_16)(alpha)) + 128); \
- (composite) = (png_byte)(((temp + (temp >> 8)) >> 8) & 0xff); \
- }
-
-# define png_composite_16(composite, fg, alpha, bg) \
- { \
- png_uint_32 temp = (png_uint_32)((png_uint_32)(fg) \
- * (png_uint_32)(alpha) \
- + (png_uint_32)(bg)*(65535 \
- - (png_uint_32)(alpha)) + 32768); \
- (composite) = (png_uint_16)(0xffff & ((temp + (temp >> 16)) >> 16)); \
- }
-
-#else /* Standard method using integer division */
-
-# define png_composite(composite, fg, alpha, bg) \
- (composite) = \
- (png_byte)(0xff & (((png_uint_16)(fg) * (png_uint_16)(alpha) + \
- (png_uint_16)(bg) * (png_uint_16)(255 - (png_uint_16)(alpha)) + \
- 127) / 255))
-
-# define png_composite_16(composite, fg, alpha, bg) \
- (composite) = \
- (png_uint_16)(0xffff & (((png_uint_32)(fg) * (png_uint_32)(alpha) + \
- (png_uint_32)(bg)*(png_uint_32)(65535 - (png_uint_32)(alpha)) + \
- 32767) / 65535))
-#endif /* READ_COMPOSITE_NODIV */
-
-#ifdef PNG_READ_INT_FUNCTIONS_SUPPORTED
-PNG_EXPORT(201, png_uint_32, png_get_uint_32, (png_const_bytep buf));
-PNG_EXPORT(202, png_uint_16, png_get_uint_16, (png_const_bytep buf));
-PNG_EXPORT(203, png_int_32, png_get_int_32, (png_const_bytep buf));
-#endif
-
-PNG_EXPORT(204, png_uint_32, png_get_uint_31, (png_const_structrp png_ptr,
- png_const_bytep buf));
-/* No png_get_int_16 -- may be added if there's a real need for it. */
-
-/* Place a 32-bit number into a buffer in PNG byte order (big-endian). */
-#ifdef PNG_WRITE_INT_FUNCTIONS_SUPPORTED
-PNG_EXPORT(205, void, png_save_uint_32, (png_bytep buf, png_uint_32 i));
-#endif
-#ifdef PNG_SAVE_INT_32_SUPPORTED
-PNG_EXPORT(206, void, png_save_int_32, (png_bytep buf, png_int_32 i));
-#endif
-
-/* Place a 16-bit number into a buffer in PNG byte order.
- * The parameter is declared unsigned int, not png_uint_16,
- * just to avoid potential problems on pre-ANSI C compilers.
- */
-#ifdef PNG_WRITE_INT_FUNCTIONS_SUPPORTED
-PNG_EXPORT(207, void, png_save_uint_16, (png_bytep buf, unsigned int i));
-/* No png_save_int_16 -- may be added if there's a real need for it. */
-#endif
-
-#ifdef PNG_USE_READ_MACROS
-/* Inline macros to do direct reads of bytes from the input buffer.
- * The png_get_int_32() routine assumes we are using two's complement
- * format for negative values, which is almost certainly true.
- */
-# define PNG_get_uint_32(buf) \
- (((png_uint_32)(*(buf)) << 24) + \
- ((png_uint_32)(*((buf) + 1)) << 16) + \
- ((png_uint_32)(*((buf) + 2)) << 8) + \
- ((png_uint_32)(*((buf) + 3))))
-
- /* From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the
- * function) incorrectly returned a value of type png_uint_32.
- */
-# define PNG_get_uint_16(buf) \
- ((png_uint_16) \
- (((unsigned int)(*(buf)) << 8) + \
- ((unsigned int)(*((buf) + 1)))))
-
-# define PNG_get_int_32(buf) \
- ((png_int_32)((*(buf) & 0x80) \
- ? -((png_int_32)(((png_get_uint_32(buf)^0xffffffffU)+1U)&0x7fffffffU)) \
- : (png_int_32)png_get_uint_32(buf)))
-
-/* If PNG_PREFIX is defined the same thing as below happens in pnglibconf.h,
- * but defining a macro name prefixed with PNG_PREFIX.
- */
-# ifndef PNG_PREFIX
-# define png_get_uint_32(buf) PNG_get_uint_32(buf)
-# define png_get_uint_16(buf) PNG_get_uint_16(buf)
-# define png_get_int_32(buf) PNG_get_int_32(buf)
-# endif
-#else
-# ifdef PNG_PREFIX
- /* No macros; revert to the (redefined) function */
-# define PNG_get_uint_32 (png_get_uint_32)
-# define PNG_get_uint_16 (png_get_uint_16)
-# define PNG_get_int_32 (png_get_int_32)
-# endif
-#endif
-
-#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
-PNG_EXPORT(242, void, png_set_check_for_invalid_index,
- (png_structrp png_ptr, int allowed));
-# ifdef PNG_GET_PALETTE_MAX_SUPPORTED
-PNG_EXPORT(243, int, png_get_palette_max, (png_const_structp png_ptr,
- png_const_infop info_ptr));
-# endif
-#endif /* CHECK_FOR_INVALID_INDEX */
-
-/*******************************************************************************
- * Section 5: SIMPLIFIED API
- *******************************************************************************
- *
- * Please read the documentation in libpng-manual.txt (TODO: write said
- * documentation) if you don't understand what follows.
- *
- * The simplified API hides the details of both libpng and the PNG file format
- * itself. It allows PNG files to be read into a very limited number of
- * in-memory bitmap formats or to be written from the same formats. If these
- * formats do not accommodate your needs then you can, and should, use the more
- * sophisticated APIs above - these support a wide variety of in-memory formats
- * and a wide variety of sophisticated transformations to those formats as well
- * as a wide variety of APIs to manipulate ancillary information.
- *
- * To read a PNG file using the simplified API:
- *
- * 1) Declare a 'png_image' structure (see below) on the stack, set the
- * version field to PNG_IMAGE_VERSION and the 'opaque' pointer to NULL
- * (this is REQUIRED, your program may crash if you don't do it.)
- * 2) Call the appropriate png_image_begin_read... function.
- * 3) Set the png_image 'format' member to the required sample format.
- * 4) Allocate a buffer for the image and, if required, the color-map.
- * 5) Call png_image_finish_read to read the image and, if required, the
- * color-map into your buffers.
- *
- * There are no restrictions on the format of the PNG input itself; all valid
- * color types, bit depths, and interlace methods are acceptable, and the
- * input image is transformed as necessary to the requested in-memory format
- * during the png_image_finish_read() step. The only caveat is that if you
- * request a color-mapped image from a PNG that is full-color or makes
- * complex use of an alpha channel the transformation is extremely lossy and the
- * result may look terrible.
- *
- * To write a PNG file using the simplified API:
- *
- * 1) Declare a 'png_image' structure on the stack and memset() it to all zero.
- * 2) Initialize the members of the structure that describe the image, setting
- * the 'format' member to the format of the image samples.
- * 3) Call the appropriate png_image_write... function with a pointer to the
- * image and, if necessary, the color-map to write the PNG data.
- *
- * png_image is a structure that describes the in-memory format of an image
- * when it is being read or defines the in-memory format of an image that you
- * need to write:
- */
-#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) || \
- defined(PNG_SIMPLIFIED_WRITE_SUPPORTED)
-
-#define PNG_IMAGE_VERSION 1
-
-typedef struct png_control *png_controlp;
-typedef struct
-{
- png_controlp opaque; /* Initialize to NULL, free with png_image_free */
- png_uint_32 version; /* Set to PNG_IMAGE_VERSION */
- png_uint_32 width; /* Image width in pixels (columns) */
- png_uint_32 height; /* Image height in pixels (rows) */
- png_uint_32 format; /* Image format as defined below */
- png_uint_32 flags; /* A bit mask containing informational flags */
- png_uint_32 colormap_entries;
- /* Number of entries in the color-map */
-
- /* In the event of an error or warning the following field will be set to a
- * non-zero value and the 'message' field will contain a '\0' terminated
- * string with the libpng error or warning message. If both warnings and
- * an error were encountered, only the error is recorded. If there
- * are multiple warnings, only the first one is recorded.
- *
- * The upper 30 bits of this value are reserved, the low two bits contain
- * a value as follows:
- */
-# define PNG_IMAGE_WARNING 1
-# define PNG_IMAGE_ERROR 2
- /*
- * The result is a two-bit code such that a value more than 1 indicates
- * a failure in the API just called:
- *
- * 0 - no warning or error
- * 1 - warning
- * 2 - error
- * 3 - error preceded by warning
- */
-# define PNG_IMAGE_FAILED(png_cntrl) ((((png_cntrl).warning_or_error)&0x03)>1)
-
- png_uint_32 warning_or_error;
-
- char message[64];
-} png_image, *png_imagep;
-
-/* The samples of the image have one to four channels whose components have
- * original values in the range 0 to 1.0:
- *
- * 1: A single gray or luminance channel (G).
- * 2: A gray/luminance channel and an alpha channel (GA).
- * 3: Three red, green, blue color channels (RGB).
- * 4: Three color channels and an alpha channel (RGBA).
- *
- * The components are encoded in one of two ways:
- *
- * a) As a small integer, value 0..255, contained in a single byte. For the
- * alpha channel the original value is simply value/255. For the color or
- * luminance channels the value is encoded according to the sRGB specification
- * and matches the 8-bit format expected by typical display devices.
- *
- * The color/gray channels are not scaled (pre-multiplied) by the alpha
- * channel and are suitable for passing to color management software.
- *
- * b) As a value in the range 0..65535, contained in a 2-byte integer. All
- * channels can be converted to the original value by dividing by 65535; all
- * channels are linear. Color channels use the RGB encoding (RGB end-points) of
- * the sRGB specification. This encoding is identified by the
- * PNG_FORMAT_FLAG_LINEAR flag below.
- *
- * When the simplified API needs to convert between sRGB and linear colorspaces,
- * the actual sRGB transfer curve defined in the sRGB specification (see the
- * article at <https://en.wikipedia.org/wiki/SRGB>) is used, not the gamma=1/2.2
- * approximation used elsewhere in libpng.
- *
- * When an alpha channel is present it is expected to denote pixel coverage
- * of the color or luminance channels and is returned as an associated alpha
- * channel: the color/gray channels are scaled (pre-multiplied) by the alpha
- * value.
- *
- * The samples are either contained directly in the image data, between 1 and 8
- * bytes per pixel according to the encoding, or are held in a color-map indexed
- * by bytes in the image data. In the case of a color-map the color-map entries
- * are individual samples, encoded as above, and the image data has one byte per
- * pixel to select the relevant sample from the color-map.
- */
-
-/* PNG_FORMAT_*
- *
- * #defines to be used in png_image::format. Each #define identifies a
- * particular layout of sample data and, if present, alpha values. There are
- * separate defines for each of the two component encodings.
- *
- * A format is built up using single bit flag values. All combinations are
- * valid. Formats can be built up from the flag values or you can use one of
- * the predefined values below. When testing formats always use the FORMAT_FLAG
- * macros to test for individual features - future versions of the library may
- * add new flags.
- *
- * When reading or writing color-mapped images the format should be set to the
- * format of the entries in the color-map then png_image_{read,write}_colormap
- * called to read or write the color-map and set the format correctly for the
- * image data. Do not set the PNG_FORMAT_FLAG_COLORMAP bit directly!
- *
- * NOTE: libpng can be built with particular features disabled. If you see
- * compiler errors because the definition of one of the following flags has been
- * compiled out it is because libpng does not have the required support. It is
- * possible, however, for the libpng configuration to enable the format on just
- * read or just write; in that case you may see an error at run time. You can
- * guard against this by checking for the definition of the appropriate
- * "_SUPPORTED" macro, one of:
- *
- * PNG_SIMPLIFIED_{READ,WRITE}_{BGR,AFIRST}_SUPPORTED
- */
-#define PNG_FORMAT_FLAG_ALPHA 0x01U /* format with an alpha channel */
-#define PNG_FORMAT_FLAG_COLOR 0x02U /* color format: otherwise grayscale */
-#define PNG_FORMAT_FLAG_LINEAR 0x04U /* 2-byte channels else 1-byte */
-#define PNG_FORMAT_FLAG_COLORMAP 0x08U /* image data is color-mapped */
-
-#ifdef PNG_FORMAT_BGR_SUPPORTED
-# define PNG_FORMAT_FLAG_BGR 0x10U /* BGR colors, else order is RGB */
-#endif
-
-#ifdef PNG_FORMAT_AFIRST_SUPPORTED
-# define PNG_FORMAT_FLAG_AFIRST 0x20U /* alpha channel comes first */
-#endif
-
-#define PNG_FORMAT_FLAG_ASSOCIATED_ALPHA 0x40U /* alpha channel is associated */
-
-/* Commonly used formats have predefined macros.
- *
- * First the single byte (sRGB) formats:
- */
-#define PNG_FORMAT_GRAY 0
-#define PNG_FORMAT_GA PNG_FORMAT_FLAG_ALPHA
-#define PNG_FORMAT_AG (PNG_FORMAT_GA|PNG_FORMAT_FLAG_AFIRST)
-#define PNG_FORMAT_RGB PNG_FORMAT_FLAG_COLOR
-#define PNG_FORMAT_BGR (PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_BGR)
-#define PNG_FORMAT_RGBA (PNG_FORMAT_RGB|PNG_FORMAT_FLAG_ALPHA)
-#define PNG_FORMAT_ARGB (PNG_FORMAT_RGBA|PNG_FORMAT_FLAG_AFIRST)
-#define PNG_FORMAT_BGRA (PNG_FORMAT_BGR|PNG_FORMAT_FLAG_ALPHA)
-#define PNG_FORMAT_ABGR (PNG_FORMAT_BGRA|PNG_FORMAT_FLAG_AFIRST)
-
-/* Then the linear 2-byte formats. When naming these "Y" is used to
- * indicate a luminance (gray) channel.
- */
-#define PNG_FORMAT_LINEAR_Y PNG_FORMAT_FLAG_LINEAR
-#define PNG_FORMAT_LINEAR_Y_ALPHA (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_ALPHA)
-#define PNG_FORMAT_LINEAR_RGB (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR)
-#define PNG_FORMAT_LINEAR_RGB_ALPHA \
- (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_ALPHA)
-
-/* With color-mapped formats the image data is one byte for each pixel, the byte
- * is an index into the color-map which is formatted as above. To obtain a
- * color-mapped format it is sufficient just to add the PNG_FOMAT_FLAG_COLORMAP
- * to one of the above definitions, or you can use one of the definitions below.
- */
-#define PNG_FORMAT_RGB_COLORMAP (PNG_FORMAT_RGB|PNG_FORMAT_FLAG_COLORMAP)
-#define PNG_FORMAT_BGR_COLORMAP (PNG_FORMAT_BGR|PNG_FORMAT_FLAG_COLORMAP)
-#define PNG_FORMAT_RGBA_COLORMAP (PNG_FORMAT_RGBA|PNG_FORMAT_FLAG_COLORMAP)
-#define PNG_FORMAT_ARGB_COLORMAP (PNG_FORMAT_ARGB|PNG_FORMAT_FLAG_COLORMAP)
-#define PNG_FORMAT_BGRA_COLORMAP (PNG_FORMAT_BGRA|PNG_FORMAT_FLAG_COLORMAP)
-#define PNG_FORMAT_ABGR_COLORMAP (PNG_FORMAT_ABGR|PNG_FORMAT_FLAG_COLORMAP)
-
-/* PNG_IMAGE macros
- *
- * These are convenience macros to derive information from a png_image
- * structure. The PNG_IMAGE_SAMPLE_ macros return values appropriate to the
- * actual image sample values - either the entries in the color-map or the
- * pixels in the image. The PNG_IMAGE_PIXEL_ macros return corresponding values
- * for the pixels and will always return 1 for color-mapped formats. The
- * remaining macros return information about the rows in the image and the
- * complete image.
- *
- * NOTE: All the macros that take a png_image::format parameter are compile time
- * constants if the format parameter is, itself, a constant. Therefore these
- * macros can be used in array declarations and case labels where required.
- * Similarly the macros are also pre-processor constants (sizeof is not used) so
- * they can be used in #if tests.
- *
- * First the information about the samples.
- */
-#define PNG_IMAGE_SAMPLE_CHANNELS(fmt)\
- (((fmt)&(PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_ALPHA))+1)
- /* Return the total number of channels in a given format: 1..4 */
-
-#define PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt)\
- ((((fmt) & PNG_FORMAT_FLAG_LINEAR) >> 2)+1)
- /* Return the size in bytes of a single component of a pixel or color-map
- * entry (as appropriate) in the image: 1 or 2.
- */
-
-#define PNG_IMAGE_SAMPLE_SIZE(fmt)\
- (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt))
- /* This is the size of the sample data for one sample. If the image is
- * color-mapped it is the size of one color-map entry (and image pixels are
- * one byte in size), otherwise it is the size of one image pixel.
- */
-
-#define PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(fmt)\
- (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * 256)
- /* The maximum size of the color-map required by the format expressed in a
- * count of components. This can be used to compile-time allocate a
- * color-map:
- *
- * png_uint_16 colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(linear_fmt)];
- *
- * png_byte colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(sRGB_fmt)];
- *
- * Alternatively use the PNG_IMAGE_COLORMAP_SIZE macro below to use the
- * information from one of the png_image_begin_read_ APIs and dynamically
- * allocate the required memory.
- */
-
-/* Corresponding information about the pixels */
-#define PNG_IMAGE_PIXEL_(test,fmt)\
- (((fmt)&PNG_FORMAT_FLAG_COLORMAP)?1:test(fmt))
-
-#define PNG_IMAGE_PIXEL_CHANNELS(fmt)\
- PNG_IMAGE_PIXEL_(PNG_IMAGE_SAMPLE_CHANNELS,fmt)
- /* The number of separate channels (components) in a pixel; 1 for a
- * color-mapped image.
- */
-
-#define PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt)\
- PNG_IMAGE_PIXEL_(PNG_IMAGE_SAMPLE_COMPONENT_SIZE,fmt)
- /* The size, in bytes, of each component in a pixel; 1 for a color-mapped
- * image.
- */
-
-#define PNG_IMAGE_PIXEL_SIZE(fmt) PNG_IMAGE_PIXEL_(PNG_IMAGE_SAMPLE_SIZE,fmt)
- /* The size, in bytes, of a complete pixel; 1 for a color-mapped image. */
-
-/* Information about the whole row, or whole image */
-#define PNG_IMAGE_ROW_STRIDE(image)\
- (PNG_IMAGE_PIXEL_CHANNELS((image).format) * (image).width)
- /* Return the total number of components in a single row of the image; this
- * is the minimum 'row stride', the minimum count of components between each
- * row. For a color-mapped image this is the minimum number of bytes in a
- * row.
- *
- * WARNING: this macro overflows for some images with more than one component
- * and very large image widths. libpng will refuse to process an image where
- * this macro would overflow.
- */
-
-#define PNG_IMAGE_BUFFER_SIZE(image, row_stride)\
- (PNG_IMAGE_PIXEL_COMPONENT_SIZE((image).format)*(image).height*(row_stride))
- /* Return the size, in bytes, of an image buffer given a png_image and a row
- * stride - the number of components to leave space for in each row.
- *
- * WARNING: this macro overflows a 32-bit integer for some large PNG images,
- * libpng will refuse to process an image where such an overflow would occur.
- */
-
-#define PNG_IMAGE_SIZE(image)\
- PNG_IMAGE_BUFFER_SIZE(image, PNG_IMAGE_ROW_STRIDE(image))
- /* Return the size, in bytes, of the image in memory given just a png_image;
- * the row stride is the minimum stride required for the image.
- */
-
-#define PNG_IMAGE_COLORMAP_SIZE(image)\
- (PNG_IMAGE_SAMPLE_SIZE((image).format) * (image).colormap_entries)
- /* Return the size, in bytes, of the color-map of this image. If the image
- * format is not a color-map format this will return a size sufficient for
- * 256 entries in the given format; check PNG_FORMAT_FLAG_COLORMAP if
- * you don't want to allocate a color-map in this case.
- */
-
-/* PNG_IMAGE_FLAG_*
- *
- * Flags containing additional information about the image are held in the
- * 'flags' field of png_image.
- */
-#define PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB 0x01
- /* This indicates that the RGB values of the in-memory bitmap do not
- * correspond to the red, green and blue end-points defined by sRGB.
- */
-
-#define PNG_IMAGE_FLAG_FAST 0x02
- /* On write emphasise speed over compression; the resultant PNG file will be
- * larger but will be produced significantly faster, particular for large
- * images. Do not use this option for images which will be distributed, only
- * used it when producing intermediate files that will be read back in
- * repeatedly. For a typical 24-bit image the option will double the read
- * speed at the cost of increasing the image size by 25%, however for many
- * more compressible images the PNG file can be 10 times larger with only a
- * slight speed gain.
- */
-
-#define PNG_IMAGE_FLAG_16BIT_sRGB 0x04
- /* On read if the image is a 16-bit per component image and there is no gAMA
- * or sRGB chunk assume that the components are sRGB encoded. Notice that
- * images output by the simplified API always have gamma information; setting
- * this flag only affects the interpretation of 16-bit images from an
- * external source. It is recommended that the application expose this flag
- * to the user; the user can normally easily recognize the difference between
- * linear and sRGB encoding. This flag has no effect on write - the data
- * passed to the write APIs must have the correct encoding (as defined
- * above.)
- *
- * If the flag is not set (the default) input 16-bit per component data is
- * assumed to be linear.
- *
- * NOTE: the flag can only be set after the png_image_begin_read_ call,
- * because that call initializes the 'flags' field.
- */
-
-#ifdef PNG_SIMPLIFIED_READ_SUPPORTED
-/* READ APIs
- * ---------
- *
- * The png_image passed to the read APIs must have been initialized by setting
- * the png_controlp field 'opaque' to NULL (or, safer, memset the whole thing.)
- */
-#ifdef PNG_STDIO_SUPPORTED
-PNG_EXPORT(234, int, png_image_begin_read_from_file, (png_imagep image,
- const char *file_name));
- /* The named file is opened for read and the image header is filled in
- * from the PNG header in the file.
- */
-
-PNG_EXPORT(235, int, png_image_begin_read_from_stdio, (png_imagep image,
- FILE* file));
- /* The PNG header is read from the stdio FILE object. */
-#endif /* STDIO */
-
-PNG_EXPORT(236, int, png_image_begin_read_from_memory, (png_imagep image,
- png_const_voidp memory, size_t size));
- /* The PNG header is read from the given memory buffer. */
-
-PNG_EXPORT(237, int, png_image_finish_read, (png_imagep image,
- png_const_colorp background, void *buffer, png_int_32 row_stride,
- void *colormap));
- /* Finish reading the image into the supplied buffer and clean up the
- * png_image structure.
- *
- * row_stride is the step, in byte or 2-byte units as appropriate,
- * between adjacent rows. A positive stride indicates that the top-most row
- * is first in the buffer - the normal top-down arrangement. A negative
- * stride indicates that the bottom-most row is first in the buffer.
- *
- * background need only be supplied if an alpha channel must be removed from
- * a png_byte format and the removal is to be done by compositing on a solid
- * color; otherwise it may be NULL and any composition will be done directly
- * onto the buffer. The value is an sRGB color to use for the background,
- * for grayscale output the green channel is used.
- *
- * background must be supplied when an alpha channel must be removed from a
- * single byte color-mapped output format, in other words if:
- *
- * 1) The original format from png_image_begin_read_from_* had
- * PNG_FORMAT_FLAG_ALPHA set.
- * 2) The format set by the application does not.
- * 3) The format set by the application has PNG_FORMAT_FLAG_COLORMAP set and
- * PNG_FORMAT_FLAG_LINEAR *not* set.
- *
- * For linear output removing the alpha channel is always done by compositing
- * on black and background is ignored.
- *
- * colormap must be supplied when PNG_FORMAT_FLAG_COLORMAP is set. It must
- * be at least the size (in bytes) returned by PNG_IMAGE_COLORMAP_SIZE.
- * image->colormap_entries will be updated to the actual number of entries
- * written to the colormap; this may be less than the original value.
- */
-
-PNG_EXPORT(238, void, png_image_free, (png_imagep image));
- /* Free any data allocated by libpng in image->opaque, setting the pointer to
- * NULL. May be called at any time after the structure is initialized.
- */
-#endif /* SIMPLIFIED_READ */
-
-#ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED
-/* WRITE APIS
- * ----------
- * For write you must initialize a png_image structure to describe the image to
- * be written. To do this use memset to set the whole structure to 0 then
- * initialize fields describing your image.
- *
- * version: must be set to PNG_IMAGE_VERSION
- * opaque: must be initialized to NULL
- * width: image width in pixels
- * height: image height in rows
- * format: the format of the data (image and color-map) you wish to write
- * flags: set to 0 unless one of the defined flags applies; set
- * PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB for color format images where the RGB
- * values do not correspond to the colors in sRGB.
- * colormap_entries: set to the number of entries in the color-map (0 to 256)
- */
-#ifdef PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED
-PNG_EXPORT(239, int, png_image_write_to_file, (png_imagep image,
- const char *file, int convert_to_8bit, const void *buffer,
- png_int_32 row_stride, const void *colormap));
- /* Write the image to the named file. */
-
-PNG_EXPORT(240, int, png_image_write_to_stdio, (png_imagep image, FILE *file,
- int convert_to_8_bit, const void *buffer, png_int_32 row_stride,
- const void *colormap));
- /* Write the image to the given (FILE*). */
-#endif /* SIMPLIFIED_WRITE_STDIO */
-
-/* With all write APIs if image is in one of the linear formats with 16-bit
- * data then setting convert_to_8_bit will cause the output to be an 8-bit PNG
- * gamma encoded according to the sRGB specification, otherwise a 16-bit linear
- * encoded PNG file is written.
- *
- * With color-mapped data formats the colormap parameter point to a color-map
- * with at least image->colormap_entries encoded in the specified format. If
- * the format is linear the written PNG color-map will be converted to sRGB
- * regardless of the convert_to_8_bit flag.
- *
- * With all APIs row_stride is handled as in the read APIs - it is the spacing
- * from one row to the next in component sized units (1 or 2 bytes) and if
- * negative indicates a bottom-up row layout in the buffer. If row_stride is
- * zero, libpng will calculate it for you from the image width and number of
- * channels.
- *
- * Note that the write API does not support interlacing, sub-8-bit pixels or
- * most ancillary chunks. If you need to write text chunks (e.g. for copyright
- * notices) you need to use one of the other APIs.
- */
-
-PNG_EXPORT(245, int, png_image_write_to_memory, (png_imagep image, void *memory,
- png_alloc_size_t * PNG_RESTRICT memory_bytes, int convert_to_8_bit,
- const void *buffer, png_int_32 row_stride, const void *colormap));
- /* Write the image to the given memory buffer. The function both writes the
- * whole PNG data stream to *memory and updates *memory_bytes with the count
- * of bytes written.
- *
- * 'memory' may be NULL. In this case *memory_bytes is not read however on
- * success the number of bytes which would have been written will still be
- * stored in *memory_bytes. On failure *memory_bytes will contain 0.
- *
- * If 'memory' is not NULL it must point to memory[*memory_bytes] of
- * writeable memory.
- *
- * If the function returns success memory[*memory_bytes] (if 'memory' is not
- * NULL) contains the written PNG data. *memory_bytes will always be less
- * than or equal to the original value.
- *
- * If the function returns false and *memory_bytes was not changed an error
- * occurred during write. If *memory_bytes was changed, or is not 0 if
- * 'memory' was NULL, the write would have succeeded but for the memory
- * buffer being too small. *memory_bytes contains the required number of
- * bytes and will be bigger that the original value.
- */
-
-#define png_image_write_get_memory_size(image, size, convert_to_8_bit, buffer,\
- row_stride, colormap)\
- png_image_write_to_memory(&(image), 0, &(size), convert_to_8_bit, buffer,\
- row_stride, colormap)
- /* Return the amount of memory in 'size' required to compress this image.
- * The png_image structure 'image' must be filled in as in the above
- * function and must not be changed before the actual write call, the buffer
- * and all other parameters must also be identical to that in the final
- * write call. The 'size' variable need not be initialized.
- *
- * NOTE: the macro returns true/false, if false is returned 'size' will be
- * set to zero and the write failed and probably will fail if tried again.
- */
-
-/* You can pre-allocate the buffer by making sure it is of sufficient size
- * regardless of the amount of compression achieved. The buffer size will
- * always be bigger than the original image and it will never be filled. The
- * following macros are provided to assist in allocating the buffer.
- */
-#define PNG_IMAGE_DATA_SIZE(image) (PNG_IMAGE_SIZE(image)+(image).height)
- /* The number of uncompressed bytes in the PNG byte encoding of the image;
- * uncompressing the PNG IDAT data will give this number of bytes.
- *
- * NOTE: while PNG_IMAGE_SIZE cannot overflow for an image in memory this
- * macro can because of the extra bytes used in the PNG byte encoding. You
- * need to avoid this macro if your image size approaches 2^30 in width or
- * height. The same goes for the remainder of these macros; they all produce
- * bigger numbers than the actual in-memory image size.
- */
-#ifndef PNG_ZLIB_MAX_SIZE
-# define PNG_ZLIB_MAX_SIZE(b) ((b)+(((b)+7U)>>3)+(((b)+63U)>>6)+11U)
- /* An upper bound on the number of compressed bytes given 'b' uncompressed
- * bytes. This is based on deflateBounds() in zlib; different
- * implementations of zlib compression may conceivably produce more data so
- * if your zlib implementation is not zlib itself redefine this macro
- * appropriately.
- */
-#endif
-
-#define PNG_IMAGE_COMPRESSED_SIZE_MAX(image)\
- PNG_ZLIB_MAX_SIZE((png_alloc_size_t)PNG_IMAGE_DATA_SIZE(image))
- /* An upper bound on the size of the data in the PNG IDAT chunks. */
-
-#define PNG_IMAGE_PNG_SIZE_MAX_(image, image_size)\
- ((8U/*sig*/+25U/*IHDR*/+16U/*gAMA*/+44U/*cHRM*/+12U/*IEND*/+\
- (((image).format&PNG_FORMAT_FLAG_COLORMAP)?/*colormap: PLTE, tRNS*/\
- 12U+3U*(image).colormap_entries/*PLTE data*/+\
- (((image).format&PNG_FORMAT_FLAG_ALPHA)?\
- 12U/*tRNS*/+(image).colormap_entries:0U):0U)+\
- 12U)+(12U*((image_size)/PNG_ZBUF_SIZE))/*IDAT*/+(image_size))
- /* A helper for the following macro; if your compiler cannot handle the
- * following macro use this one with the result of
- * PNG_IMAGE_COMPRESSED_SIZE_MAX(image) as the second argument (most
- * compilers should handle this just fine.)
- */
-
-#define PNG_IMAGE_PNG_SIZE_MAX(image)\
- PNG_IMAGE_PNG_SIZE_MAX_(image, PNG_IMAGE_COMPRESSED_SIZE_MAX(image))
- /* An upper bound on the total length of the PNG data stream for 'image'.
- * The result is of type png_alloc_size_t, on 32-bit systems this may
- * overflow even though PNG_IMAGE_DATA_SIZE does not overflow; the write will
- * run out of buffer space but return a corrected size which should work.
- */
-#endif /* SIMPLIFIED_WRITE */
-/*******************************************************************************
- * END OF SIMPLIFIED API
- ******************************************************************************/
-#endif /* SIMPLIFIED_{READ|WRITE} */
-
-/*******************************************************************************
- * Section 6: IMPLEMENTATION OPTIONS
- *******************************************************************************
- *
- * Support for arbitrary implementation-specific optimizations. The API allows
- * particular options to be turned on or off. 'Option' is the number of the
- * option and 'onoff' is 0 (off) or non-0 (on). The value returned is given
- * by the PNG_OPTION_ defines below.
- *
- * HARDWARE: normally hardware capabilities, such as the Intel SSE instructions,
- * are detected at run time, however sometimes it may be impossible
- * to do this in user mode, in which case it is necessary to discover
- * the capabilities in an OS specific way. Such capabilities are
- * listed here when libpng has support for them and must be turned
- * ON by the application if present.
- *
- * SOFTWARE: sometimes software optimizations actually result in performance
- * decrease on some architectures or systems, or with some sets of
- * PNG images. 'Software' options allow such optimizations to be
- * selected at run time.
- */
-#ifdef PNG_SET_OPTION_SUPPORTED
-#ifdef PNG_ARM_NEON_API_SUPPORTED
-# define PNG_ARM_NEON 0 /* HARDWARE: ARM Neon SIMD instructions supported */
-#endif
-#define PNG_MAXIMUM_INFLATE_WINDOW 2 /* SOFTWARE: force maximum window */
-#define PNG_SKIP_sRGB_CHECK_PROFILE 4 /* SOFTWARE: Check ICC profile for sRGB */
-#ifdef PNG_MIPS_MSA_API_SUPPORTED
-# define PNG_MIPS_MSA 6 /* HARDWARE: MIPS Msa SIMD instructions supported */
-#endif
-#define PNG_IGNORE_ADLER32 8
-#ifdef PNG_POWERPC_VSX_API_SUPPORTED
-# define PNG_POWERPC_VSX 10 /* HARDWARE: PowerPC VSX SIMD instructions supported */
-#endif
-#define PNG_OPTION_NEXT 12 /* Next option - numbers must be even */
-
-/* Return values: NOTE: there are four values and 'off' is *not* zero */
-#define PNG_OPTION_UNSET 0 /* Unset - defaults to off */
-#define PNG_OPTION_INVALID 1 /* Option number out of range */
-#define PNG_OPTION_OFF 2
-#define PNG_OPTION_ON 3
-
-PNG_EXPORT(244, int, png_set_option, (png_structrp png_ptr, int option,
- int onoff));
-#endif /* SET_OPTION */
-
-/*******************************************************************************
- * END OF HARDWARE AND SOFTWARE OPTIONS
- ******************************************************************************/
-
-/* Maintainer: Put new public prototypes here ^, in libpng.3, in project
- * defs, and in scripts/symbols.def.
- */
-
-/* The last ordinal number (this is the *last* one already used; the next
- * one to use is one more than this.)
- */
-#ifdef PNG_EXPORT_LAST_ORDINAL
- PNG_EXPORT_LAST_ORDINAL(249);
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* PNG_VERSION_INFO_ONLY */
-/* Do not put anything past this line */
-#endif /* PNG_H */
diff --git a/3rdparty/libpng/libpng-1.6.37/png.lo b/3rdparty/libpng/libpng-1.6.37/png.lo
deleted file mode 100644
index 22e38f6..0000000
--- a/3rdparty/libpng/libpng-1.6.37/png.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# png.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/png.o'
-
-# Name of the non-PIC object
-non_pic_object='png.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/png.o b/3rdparty/libpng/libpng-1.6.37/png.o
deleted file mode 100644
index 72cf31e..0000000
--- a/3rdparty/libpng/libpng-1.6.37/png.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngbar.jpg b/3rdparty/libpng/libpng-1.6.37/pngbar.jpg
deleted file mode 100644
index 70ba8d8..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngbar.jpg
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngbar.png b/3rdparty/libpng/libpng-1.6.37/pngbar.png
deleted file mode 100644
index 49798c8..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngbar.png
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngconf.h b/3rdparty/libpng/libpng-1.6.37/pngconf.h
deleted file mode 100644
index 927a769..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngconf.h
+++ /dev/null
@@ -1,623 +0,0 @@
-
-/* pngconf.h - machine-configurable file for libpng
- *
- * libpng version 1.6.37
- *
- * Copyright (c) 2018-2019 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * Any machine specific code is near the front of this file, so if you
- * are configuring libpng for a machine, you may want to read the section
- * starting here down to where it starts to typedef png_color, png_text,
- * and png_info.
- */
-
-#ifndef PNGCONF_H
-#define PNGCONF_H
-
-#ifndef PNG_BUILDING_SYMBOL_TABLE /* else includes may cause problems */
-
-/* From libpng 1.6.0 libpng requires an ANSI X3.159-1989 ("ISOC90") compliant C
- * compiler for correct compilation. The following header files are required by
- * the standard. If your compiler doesn't provide these header files, or they
- * do not match the standard, you will need to provide/improve them.
- */
-#include <limits.h>
-#include <stddef.h>
-
-/* Library header files. These header files are all defined by ISOC90; libpng
- * expects conformant implementations, however, an ISOC90 conformant system need
- * not provide these header files if the functionality cannot be implemented.
- * In this case it will be necessary to disable the relevant parts of libpng in
- * the build of pnglibconf.h.
- *
- * Prior to 1.6.0 string.h was included here; the API changes in 1.6.0 to not
- * include this unnecessary header file.
- */
-
-#ifdef PNG_STDIO_SUPPORTED
- /* Required for the definition of FILE: */
-# include <stdio.h>
-#endif
-
-#ifdef PNG_SETJMP_SUPPORTED
- /* Required for the definition of jmp_buf and the declaration of longjmp: */
-# include <setjmp.h>
-#endif
-
-#ifdef PNG_CONVERT_tIME_SUPPORTED
- /* Required for struct tm: */
-# include <time.h>
-#endif
-
-#endif /* PNG_BUILDING_SYMBOL_TABLE */
-
-/* Prior to 1.6.0, it was possible to turn off 'const' in declarations,
- * using PNG_NO_CONST. This is no longer supported.
- */
-#define PNG_CONST const /* backward compatibility only */
-
-/* This controls optimization of the reading of 16-bit and 32-bit
- * values from PNG files. It can be set on a per-app-file basis: it
- * just changes whether a macro is used when the function is called.
- * The library builder sets the default; if read functions are not
- * built into the library the macro implementation is forced on.
- */
-#ifndef PNG_READ_INT_FUNCTIONS_SUPPORTED
-# define PNG_USE_READ_MACROS
-#endif
-#if !defined(PNG_NO_USE_READ_MACROS) && !defined(PNG_USE_READ_MACROS)
-# if PNG_DEFAULT_READ_MACROS
-# define PNG_USE_READ_MACROS
-# endif
-#endif
-
-/* COMPILER SPECIFIC OPTIONS.
- *
- * These options are provided so that a variety of difficult compilers
- * can be used. Some are fixed at build time (e.g. PNG_API_RULE
- * below) but still have compiler specific implementations, others
- * may be changed on a per-file basis when compiling against libpng.
- */
-
-/* The PNGARG macro was used in versions of libpng prior to 1.6.0 to protect
- * against legacy (pre ISOC90) compilers that did not understand function
- * prototypes. It is not required for modern C compilers.
- */
-#ifndef PNGARG
-# define PNGARG(arglist) arglist
-#endif
-
-/* Function calling conventions.
- * =============================
- * Normally it is not necessary to specify to the compiler how to call
- * a function - it just does it - however on x86 systems derived from
- * Microsoft and Borland C compilers ('IBM PC', 'DOS', 'Windows' systems
- * and some others) there are multiple ways to call a function and the
- * default can be changed on the compiler command line. For this reason
- * libpng specifies the calling convention of every exported function and
- * every function called via a user supplied function pointer. This is
- * done in this file by defining the following macros:
- *
- * PNGAPI Calling convention for exported functions.
- * PNGCBAPI Calling convention for user provided (callback) functions.
- * PNGCAPI Calling convention used by the ANSI-C library (required
- * for longjmp callbacks and sometimes used internally to
- * specify the calling convention for zlib).
- *
- * These macros should never be overridden. If it is necessary to
- * change calling convention in a private build this can be done
- * by setting PNG_API_RULE (which defaults to 0) to one of the values
- * below to select the correct 'API' variants.
- *
- * PNG_API_RULE=0 Use PNGCAPI - the 'C' calling convention - throughout.
- * This is correct in every known environment.
- * PNG_API_RULE=1 Use the operating system convention for PNGAPI and
- * the 'C' calling convention (from PNGCAPI) for
- * callbacks (PNGCBAPI). This is no longer required
- * in any known environment - if it has to be used
- * please post an explanation of the problem to the
- * libpng mailing list.
- *
- * These cases only differ if the operating system does not use the C
- * calling convention, at present this just means the above cases
- * (x86 DOS/Windows systems) and, even then, this does not apply to
- * Cygwin running on those systems.
- *
- * Note that the value must be defined in pnglibconf.h so that what
- * the application uses to call the library matches the conventions
- * set when building the library.
- */
-
-/* Symbol export
- * =============
- * When building a shared library it is almost always necessary to tell
- * the compiler which symbols to export. The png.h macro 'PNG_EXPORT'
- * is used to mark the symbols. On some systems these symbols can be
- * extracted at link time and need no special processing by the compiler,
- * on other systems the symbols are flagged by the compiler and just
- * the declaration requires a special tag applied (unfortunately) in a
- * compiler dependent way. Some systems can do either.
- *
- * A small number of older systems also require a symbol from a DLL to
- * be flagged to the program that calls it. This is a problem because
- * we do not know in the header file included by application code that
- * the symbol will come from a shared library, as opposed to a statically
- * linked one. For this reason the application must tell us by setting
- * the magic flag PNG_USE_DLL to turn on the special processing before
- * it includes png.h.
- *
- * Four additional macros are used to make this happen:
- *
- * PNG_IMPEXP The magic (if any) to cause a symbol to be exported from
- * the build or imported if PNG_USE_DLL is set - compiler
- * and system specific.
- *
- * PNG_EXPORT_TYPE(type) A macro that pre or appends PNG_IMPEXP to
- * 'type', compiler specific.
- *
- * PNG_DLL_EXPORT Set to the magic to use during a libpng build to
- * make a symbol exported from the DLL. Not used in the
- * public header files; see pngpriv.h for how it is used
- * in the libpng build.
- *
- * PNG_DLL_IMPORT Set to the magic to force the libpng symbols to come
- * from a DLL - used to define PNG_IMPEXP when
- * PNG_USE_DLL is set.
- */
-
-/* System specific discovery.
- * ==========================
- * This code is used at build time to find PNG_IMPEXP, the API settings
- * and PNG_EXPORT_TYPE(), it may also set a macro to indicate the DLL
- * import processing is possible. On Windows systems it also sets
- * compiler-specific macros to the values required to change the calling
- * conventions of the various functions.
- */
-#if defined(_Windows) || defined(_WINDOWS) || defined(WIN32) ||\
- defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
- /* Windows system (DOS doesn't support DLLs). Includes builds under Cygwin or
- * MinGW on any architecture currently supported by Windows. Also includes
- * Watcom builds but these need special treatment because they are not
- * compatible with GCC or Visual C because of different calling conventions.
- */
-# if PNG_API_RULE == 2
- /* If this line results in an error, either because __watcall is not
- * understood or because of a redefine just below you cannot use *this*
- * build of the library with the compiler you are using. *This* build was
- * build using Watcom and applications must also be built using Watcom!
- */
-# define PNGCAPI __watcall
-# endif
-
-# if defined(__GNUC__) || (defined(_MSC_VER) && (_MSC_VER >= 800))
-# define PNGCAPI __cdecl
-# if PNG_API_RULE == 1
- /* If this line results in an error __stdcall is not understood and
- * PNG_API_RULE should not have been set to '1'.
- */
-# define PNGAPI __stdcall
-# endif
-# else
- /* An older compiler, or one not detected (erroneously) above,
- * if necessary override on the command line to get the correct
- * variants for the compiler.
- */
-# ifndef PNGCAPI
-# define PNGCAPI _cdecl
-# endif
-# if PNG_API_RULE == 1 && !defined(PNGAPI)
-# define PNGAPI _stdcall
-# endif
-# endif /* compiler/api */
-
- /* NOTE: PNGCBAPI always defaults to PNGCAPI. */
-
-# if defined(PNGAPI) && !defined(PNG_USER_PRIVATEBUILD)
-# error "PNG_USER_PRIVATEBUILD must be defined if PNGAPI is changed"
-# endif
-
-# if (defined(_MSC_VER) && _MSC_VER < 800) ||\
- (defined(__BORLANDC__) && __BORLANDC__ < 0x500)
- /* older Borland and MSC
- * compilers used '__export' and required this to be after
- * the type.
- */
-# ifndef PNG_EXPORT_TYPE
-# define PNG_EXPORT_TYPE(type) type PNG_IMPEXP
-# endif
-# define PNG_DLL_EXPORT __export
-# else /* newer compiler */
-# define PNG_DLL_EXPORT __declspec(dllexport)
-# ifndef PNG_DLL_IMPORT
-# define PNG_DLL_IMPORT __declspec(dllimport)
-# endif
-# endif /* compiler */
-
-#else /* !Windows */
-# if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)
-# define PNGAPI _System
-# else /* !Windows/x86 && !OS/2 */
- /* Use the defaults, or define PNG*API on the command line (but
- * this will have to be done for every compile!)
- */
-# endif /* other system, !OS/2 */
-#endif /* !Windows/x86 */
-
-/* Now do all the defaulting . */
-#ifndef PNGCAPI
-# define PNGCAPI
-#endif
-#ifndef PNGCBAPI
-# define PNGCBAPI PNGCAPI
-#endif
-#ifndef PNGAPI
-# define PNGAPI PNGCAPI
-#endif
-
-/* PNG_IMPEXP may be set on the compilation system command line or (if not set)
- * then in an internal header file when building the library, otherwise (when
- * using the library) it is set here.
- */
-#ifndef PNG_IMPEXP
-# if defined(PNG_USE_DLL) && defined(PNG_DLL_IMPORT)
- /* This forces use of a DLL, disallowing static linking */
-# define PNG_IMPEXP PNG_DLL_IMPORT
-# endif
-
-# ifndef PNG_IMPEXP
-# define PNG_IMPEXP
-# endif
-#endif
-
-/* In 1.5.2 the definition of PNG_FUNCTION has been changed to always treat
- * 'attributes' as a storage class - the attributes go at the start of the
- * function definition, and attributes are always appended regardless of the
- * compiler. This considerably simplifies these macros but may cause problems
- * if any compilers both need function attributes and fail to handle them as
- * a storage class (this is unlikely.)
- */
-#ifndef PNG_FUNCTION
-# define PNG_FUNCTION(type, name, args, attributes) attributes type name args
-#endif
-
-#ifndef PNG_EXPORT_TYPE
-# define PNG_EXPORT_TYPE(type) PNG_IMPEXP type
-#endif
-
- /* The ordinal value is only relevant when preprocessing png.h for symbol
- * table entries, so we discard it here. See the .dfn files in the
- * scripts directory.
- */
-
-#ifndef PNG_EXPORTA
-# define PNG_EXPORTA(ordinal, type, name, args, attributes) \
- PNG_FUNCTION(PNG_EXPORT_TYPE(type), (PNGAPI name), PNGARG(args), \
- PNG_LINKAGE_API attributes)
-#endif
-
-/* ANSI-C (C90) does not permit a macro to be invoked with an empty argument,
- * so make something non-empty to satisfy the requirement:
- */
-#define PNG_EMPTY /*empty list*/
-
-#define PNG_EXPORT(ordinal, type, name, args) \
- PNG_EXPORTA(ordinal, type, name, args, PNG_EMPTY)
-
-/* Use PNG_REMOVED to comment out a removed interface. */
-#ifndef PNG_REMOVED
-# define PNG_REMOVED(ordinal, type, name, args, attributes)
-#endif
-
-#ifndef PNG_CALLBACK
-# define PNG_CALLBACK(type, name, args) type (PNGCBAPI name) PNGARG(args)
-#endif
-
-/* Support for compiler specific function attributes. These are used
- * so that where compiler support is available incorrect use of API
- * functions in png.h will generate compiler warnings.
- *
- * Added at libpng-1.2.41.
- */
-
-#ifndef PNG_NO_PEDANTIC_WARNINGS
-# ifndef PNG_PEDANTIC_WARNINGS_SUPPORTED
-# define PNG_PEDANTIC_WARNINGS_SUPPORTED
-# endif
-#endif
-
-#ifdef PNG_PEDANTIC_WARNINGS_SUPPORTED
- /* Support for compiler specific function attributes. These are used
- * so that where compiler support is available, incorrect use of API
- * functions in png.h will generate compiler warnings. Added at libpng
- * version 1.2.41. Disabling these removes the warnings but may also produce
- * less efficient code.
- */
-# if defined(__clang__) && defined(__has_attribute)
- /* Clang defines both __clang__ and __GNUC__. Check __clang__ first. */
-# if !defined(PNG_USE_RESULT) && __has_attribute(__warn_unused_result__)
-# define PNG_USE_RESULT __attribute__((__warn_unused_result__))
-# endif
-# if !defined(PNG_NORETURN) && __has_attribute(__noreturn__)
-# define PNG_NORETURN __attribute__((__noreturn__))
-# endif
-# if !defined(PNG_ALLOCATED) && __has_attribute(__malloc__)
-# define PNG_ALLOCATED __attribute__((__malloc__))
-# endif
-# if !defined(PNG_DEPRECATED) && __has_attribute(__deprecated__)
-# define PNG_DEPRECATED __attribute__((__deprecated__))
-# endif
-# if !defined(PNG_PRIVATE)
-# ifdef __has_extension
-# if __has_extension(attribute_unavailable_with_message)
-# define PNG_PRIVATE __attribute__((__unavailable__(\
- "This function is not exported by libpng.")))
-# endif
-# endif
-# endif
-# ifndef PNG_RESTRICT
-# define PNG_RESTRICT __restrict
-# endif
-
-# elif defined(__GNUC__)
-# ifndef PNG_USE_RESULT
-# define PNG_USE_RESULT __attribute__((__warn_unused_result__))
-# endif
-# ifndef PNG_NORETURN
-# define PNG_NORETURN __attribute__((__noreturn__))
-# endif
-# if __GNUC__ >= 3
-# ifndef PNG_ALLOCATED
-# define PNG_ALLOCATED __attribute__((__malloc__))
-# endif
-# ifndef PNG_DEPRECATED
-# define PNG_DEPRECATED __attribute__((__deprecated__))
-# endif
-# ifndef PNG_PRIVATE
-# if 0 /* Doesn't work so we use deprecated instead*/
-# define PNG_PRIVATE \
- __attribute__((warning("This function is not exported by libpng.")))
-# else
-# define PNG_PRIVATE \
- __attribute__((__deprecated__))
-# endif
-# endif
-# if ((__GNUC__ > 3) || !defined(__GNUC_MINOR__) || (__GNUC_MINOR__ >= 1))
-# ifndef PNG_RESTRICT
-# define PNG_RESTRICT __restrict
-# endif
-# endif /* __GNUC__.__GNUC_MINOR__ > 3.0 */
-# endif /* __GNUC__ >= 3 */
-
-# elif defined(_MSC_VER) && (_MSC_VER >= 1300)
-# ifndef PNG_USE_RESULT
-# define PNG_USE_RESULT /* not supported */
-# endif
-# ifndef PNG_NORETURN
-# define PNG_NORETURN __declspec(noreturn)
-# endif
-# ifndef PNG_ALLOCATED
-# if (_MSC_VER >= 1400)
-# define PNG_ALLOCATED __declspec(restrict)
-# endif
-# endif
-# ifndef PNG_DEPRECATED
-# define PNG_DEPRECATED __declspec(deprecated)
-# endif
-# ifndef PNG_PRIVATE
-# define PNG_PRIVATE __declspec(deprecated)
-# endif
-# ifndef PNG_RESTRICT
-# if (_MSC_VER >= 1400)
-# define PNG_RESTRICT __restrict
-# endif
-# endif
-
-# elif defined(__WATCOMC__)
-# ifndef PNG_RESTRICT
-# define PNG_RESTRICT __restrict
-# endif
-# endif
-#endif /* PNG_PEDANTIC_WARNINGS */
-
-#ifndef PNG_DEPRECATED
-# define PNG_DEPRECATED /* Use of this function is deprecated */
-#endif
-#ifndef PNG_USE_RESULT
-# define PNG_USE_RESULT /* The result of this function must be checked */
-#endif
-#ifndef PNG_NORETURN
-# define PNG_NORETURN /* This function does not return */
-#endif
-#ifndef PNG_ALLOCATED
-# define PNG_ALLOCATED /* The result of the function is new memory */
-#endif
-#ifndef PNG_PRIVATE
-# define PNG_PRIVATE /* This is a private libpng function */
-#endif
-#ifndef PNG_RESTRICT
-# define PNG_RESTRICT /* The C99 "restrict" feature */
-#endif
-
-#ifndef PNG_FP_EXPORT /* A floating point API. */
-# ifdef PNG_FLOATING_POINT_SUPPORTED
-# define PNG_FP_EXPORT(ordinal, type, name, args)\
- PNG_EXPORT(ordinal, type, name, args);
-# else /* No floating point APIs */
-# define PNG_FP_EXPORT(ordinal, type, name, args)
-# endif
-#endif
-#ifndef PNG_FIXED_EXPORT /* A fixed point API. */
-# ifdef PNG_FIXED_POINT_SUPPORTED
-# define PNG_FIXED_EXPORT(ordinal, type, name, args)\
- PNG_EXPORT(ordinal, type, name, args);
-# else /* No fixed point APIs */
-# define PNG_FIXED_EXPORT(ordinal, type, name, args)
-# endif
-#endif
-
-#ifndef PNG_BUILDING_SYMBOL_TABLE
-/* Some typedefs to get us started. These should be safe on most of the common
- * platforms.
- *
- * png_uint_32 and png_int_32 may, currently, be larger than required to hold a
- * 32-bit value however this is not normally advisable.
- *
- * png_uint_16 and png_int_16 should always be two bytes in size - this is
- * verified at library build time.
- *
- * png_byte must always be one byte in size.
- *
- * The checks below use constants from limits.h, as defined by the ISOC90
- * standard.
- */
-#if CHAR_BIT == 8 && UCHAR_MAX == 255
- typedef unsigned char png_byte;
-#else
-# error "libpng requires 8-bit bytes"
-#endif
-
-#if INT_MIN == -32768 && INT_MAX == 32767
- typedef int png_int_16;
-#elif SHRT_MIN == -32768 && SHRT_MAX == 32767
- typedef short png_int_16;
-#else
-# error "libpng requires a signed 16-bit type"
-#endif
-
-#if UINT_MAX == 65535
- typedef unsigned int png_uint_16;
-#elif USHRT_MAX == 65535
- typedef unsigned short png_uint_16;
-#else
-# error "libpng requires an unsigned 16-bit type"
-#endif
-
-#if INT_MIN < -2147483646 && INT_MAX > 2147483646
- typedef int png_int_32;
-#elif LONG_MIN < -2147483646 && LONG_MAX > 2147483646
- typedef long int png_int_32;
-#else
-# error "libpng requires a signed 32-bit (or more) type"
-#endif
-
-#if UINT_MAX > 4294967294U
- typedef unsigned int png_uint_32;
-#elif ULONG_MAX > 4294967294U
- typedef unsigned long int png_uint_32;
-#else
-# error "libpng requires an unsigned 32-bit (or more) type"
-#endif
-
-/* Prior to 1.6.0, it was possible to disable the use of size_t and ptrdiff_t.
- * From 1.6.0 onwards, an ISO C90 compiler, as well as a standard-compliant
- * behavior of sizeof and ptrdiff_t are required.
- * The legacy typedefs are provided here for backwards compatibility.
- */
-typedef size_t png_size_t;
-typedef ptrdiff_t png_ptrdiff_t;
-
-/* libpng needs to know the maximum value of 'size_t' and this controls the
- * definition of png_alloc_size_t, below. This maximum value of size_t limits
- * but does not control the maximum allocations the library makes - there is
- * direct application control of this through png_set_user_limits().
- */
-#ifndef PNG_SMALL_SIZE_T
- /* Compiler specific tests for systems where size_t is known to be less than
- * 32 bits (some of these systems may no longer work because of the lack of
- * 'far' support; see above.)
- */
-# if (defined(__TURBOC__) && !defined(__FLAT__)) ||\
- (defined(_MSC_VER) && defined(MAXSEG_64K))
-# define PNG_SMALL_SIZE_T
-# endif
-#endif
-
-/* png_alloc_size_t is guaranteed to be no smaller than size_t, and no smaller
- * than png_uint_32. Casts from size_t or png_uint_32 to png_alloc_size_t are
- * not necessary; in fact, it is recommended not to use them at all, so that
- * the compiler can complain when something turns out to be problematic.
- *
- * Casts in the other direction (from png_alloc_size_t to size_t or
- * png_uint_32) should be explicitly applied; however, we do not expect to
- * encounter practical situations that require such conversions.
- *
- * PNG_SMALL_SIZE_T must be defined if the maximum value of size_t is less than
- * 4294967295 - i.e. less than the maximum value of png_uint_32.
- */
-#ifdef PNG_SMALL_SIZE_T
- typedef png_uint_32 png_alloc_size_t;
-#else
- typedef size_t png_alloc_size_t;
-#endif
-
-/* Prior to 1.6.0 libpng offered limited support for Microsoft C compiler
- * implementations of Intel CPU specific support of user-mode segmented address
- * spaces, where 16-bit pointers address more than 65536 bytes of memory using
- * separate 'segment' registers. The implementation requires two different
- * types of pointer (only one of which includes the segment value.)
- *
- * If required this support is available in version 1.2 of libpng and may be
- * available in versions through 1.5, although the correctness of the code has
- * not been verified recently.
- */
-
-/* Typedef for floating-point numbers that are converted to fixed-point with a
- * multiple of 100,000, e.g., gamma
- */
-typedef png_int_32 png_fixed_point;
-
-/* Add typedefs for pointers */
-typedef void * png_voidp;
-typedef const void * png_const_voidp;
-typedef png_byte * png_bytep;
-typedef const png_byte * png_const_bytep;
-typedef png_uint_32 * png_uint_32p;
-typedef const png_uint_32 * png_const_uint_32p;
-typedef png_int_32 * png_int_32p;
-typedef const png_int_32 * png_const_int_32p;
-typedef png_uint_16 * png_uint_16p;
-typedef const png_uint_16 * png_const_uint_16p;
-typedef png_int_16 * png_int_16p;
-typedef const png_int_16 * png_const_int_16p;
-typedef char * png_charp;
-typedef const char * png_const_charp;
-typedef png_fixed_point * png_fixed_point_p;
-typedef const png_fixed_point * png_const_fixed_point_p;
-typedef size_t * png_size_tp;
-typedef const size_t * png_const_size_tp;
-
-#ifdef PNG_STDIO_SUPPORTED
-typedef FILE * png_FILE_p;
-#endif
-
-#ifdef PNG_FLOATING_POINT_SUPPORTED
-typedef double * png_doublep;
-typedef const double * png_const_doublep;
-#endif
-
-/* Pointers to pointers; i.e. arrays */
-typedef png_byte * * png_bytepp;
-typedef png_uint_32 * * png_uint_32pp;
-typedef png_int_32 * * png_int_32pp;
-typedef png_uint_16 * * png_uint_16pp;
-typedef png_int_16 * * png_int_16pp;
-typedef const char * * png_const_charpp;
-typedef char * * png_charpp;
-typedef png_fixed_point * * png_fixed_point_pp;
-#ifdef PNG_FLOATING_POINT_SUPPORTED
-typedef double * * png_doublepp;
-#endif
-
-/* Pointers to pointers to pointers; i.e., pointer to array */
-typedef char * * * png_charppp;
-
-#endif /* PNG_BUILDING_SYMBOL_TABLE */
-
-#endif /* PNGCONF_H */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngcp b/3rdparty/libpng/libpng-1.6.37/pngcp
deleted file mode 100755
index 62b5498..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngcp
+++ /dev/null
@@ -1,210 +0,0 @@
-#! /bin/bash
-
-# pngcp - temporary wrapper script for .libs/pngcp
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# The pngcp program cannot be directly executed until all the libtool
-# libraries that it depends on are installed.
-#
-# This wrapper script should never be moved out of the build directory.
-# If it is, it will not operate correctly.
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
-
-# Be Bourne compatible
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
-else
- case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-relink_command=""
-
-# This environment variable determines our operation mode.
-if test "$libtool_install_magic" = "%%%MAGIC variable%%%"; then
- # install mode needs the following variables:
- generated_by_libtool_version='2.4.6'
- notinst_deplibs=' libpng16.la'
-else
- # When we are sourced in execute mode, $file and $ECHO are already set.
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- file="$0"
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
- eval 'cat <<_LTECHO_EOF
-$1
-_LTECHO_EOF'
-}
- ECHO="printf %s\\n"
- fi
-
-# Very basic option parsing. These options are (a) specific to
-# the libtool wrapper, (b) are identical between the wrapper
-# /script/ and the wrapper /executable/ that is used only on
-# windows platforms, and (c) all begin with the string --lt-
-# (application programs are unlikely to have options that match
-# this pattern).
-#
-# There are only two supported options: --lt-debug and
-# --lt-dump-script. There is, deliberately, no --lt-help.
-#
-# The first argument to this parsing function should be the
-# script's ./libtool value, followed by no.
-lt_option_debug=
-func_parse_lt_options ()
-{
- lt_script_arg0=$0
- shift
- for lt_opt
- do
- case "$lt_opt" in
- --lt-debug) lt_option_debug=1 ;;
- --lt-dump-script)
- lt_dump_D=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%/[^/]*$%%'`
- test "X$lt_dump_D" = "X$lt_script_arg0" && lt_dump_D=.
- lt_dump_F=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%^.*/%%'`
- cat "$lt_dump_D/$lt_dump_F"
- exit 0
- ;;
- --lt-*)
- $ECHO "Unrecognized --lt- option: '$lt_opt'" 1>&2
- exit 1
- ;;
- esac
- done
-
- # Print the debug banner immediately:
- if test -n "$lt_option_debug"; then
- echo "pngcp:pngcp:$LINENO: libtool wrapper (GNU libtool) 2.4.6" 1>&2
- fi
-}
-
-# Used when --lt-debug. Prints its arguments to stdout
-# (redirection is the responsibility of the caller)
-func_lt_dump_args ()
-{
- lt_dump_args_N=1;
- for lt_arg
- do
- $ECHO "pngcp:pngcp:$LINENO: newargv[$lt_dump_args_N]: $lt_arg"
- lt_dump_args_N=`expr $lt_dump_args_N + 1`
- done
-}
-
-# Core function for launching the target application
-func_exec_program_core ()
-{
-
- if test -n "$lt_option_debug"; then
- $ECHO "pngcp:pngcp:$LINENO: newargv[0]: $progdir/$program" 1>&2
- func_lt_dump_args ${1+"$@"} 1>&2
- fi
- exec "$progdir/$program" ${1+"$@"}
-
- $ECHO "$0: cannot exec $program $*" 1>&2
- exit 1
-}
-
-# A function to encapsulate launching the target application
-# Strips options in the --lt-* namespace from $@ and
-# launches target application with the remaining arguments.
-func_exec_program ()
-{
- case " $* " in
- *\ --lt-*)
- for lt_wr_arg
- do
- case $lt_wr_arg in
- --lt-*) ;;
- *) set x "$@" "$lt_wr_arg"; shift;;
- esac
- shift
- done ;;
- esac
- func_exec_program_core ${1+"$@"}
-}
-
- # Parse options
- func_parse_lt_options "$0" ${1+"$@"}
-
- # Find the directory that this script lives in.
- thisdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
- test "x$thisdir" = "x$file" && thisdir=.
-
- # Follow symbolic links until we get to the real thisdir.
- file=`ls -ld "$file" | /bin/sed -n 's/.*-> //p'`
- while test -n "$file"; do
- destdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
-
- # If there was a directory component, then change thisdir.
- if test "x$destdir" != "x$file"; then
- case "$destdir" in
- [\\/]* | [A-Za-z]:[\\/]*) thisdir="$destdir" ;;
- *) thisdir="$thisdir/$destdir" ;;
- esac
- fi
-
- file=`$ECHO "$file" | /bin/sed 's%^.*/%%'`
- file=`ls -ld "$thisdir/$file" | /bin/sed -n 's/.*-> //p'`
- done
-
- # Usually 'no', except on cygwin/mingw when embedded into
- # the cwrapper.
- WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=no
- if test "$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR" = "yes"; then
- # special case for '.'
- if test "$thisdir" = "."; then
- thisdir=`pwd`
- fi
- # remove .libs from thisdir
- case "$thisdir" in
- *[\\/].libs ) thisdir=`$ECHO "$thisdir" | /bin/sed 's%[\\/][^\\/]*$%%'` ;;
- .libs ) thisdir=. ;;
- esac
- fi
-
- # Try to get the absolute directory name.
- absdir=`cd "$thisdir" && pwd`
- test -n "$absdir" && thisdir="$absdir"
-
- program='pngcp'
- progdir="$thisdir/.libs"
-
-
- if test -f "$progdir/$program"; then
- # Add our own library path to LD_LIBRARY_PATH
- LD_LIBRARY_PATH="/home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/.libs:$LD_LIBRARY_PATH"
-
- # Some systems cannot cope with colon-terminated LD_LIBRARY_PATH
- # The second colon is a workaround for a bug in BeOS R4 sed
- LD_LIBRARY_PATH=`$ECHO "$LD_LIBRARY_PATH" | /bin/sed 's/::*$//'`
-
- export LD_LIBRARY_PATH
-
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- # Run the actual program with our arguments.
- func_exec_program ${1+"$@"}
- fi
- else
- # The program doesn't exist.
- $ECHO "$0: error: '$progdir/$program' does not exist" 1>&2
- $ECHO "This script is just a wrapper for $program." 1>&2
- $ECHO "See the libtool documentation for more information." 1>&2
- exit 1
- fi
-fi
diff --git a/3rdparty/libpng/libpng-1.6.37/pngdebug.h b/3rdparty/libpng/libpng-1.6.37/pngdebug.h
deleted file mode 100644
index 00d5a45..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngdebug.h
+++ /dev/null
@@ -1,153 +0,0 @@
-
-/* pngdebug.h - Debugging macros for libpng, also used in pngtest.c
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2013 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-/* Define PNG_DEBUG at compile time for debugging information. Higher
- * numbers for PNG_DEBUG mean more debugging information. This has
- * only been added since version 0.95 so it is not implemented throughout
- * libpng yet, but more support will be added as needed.
- *
- * png_debug[1-2]?(level, message ,arg{0-2})
- * Expands to a statement (either a simple expression or a compound
- * do..while(0) statement) that outputs a message with parameter
- * substitution if PNG_DEBUG is defined to 2 or more. If PNG_DEBUG
- * is undefined, 0 or 1 every png_debug expands to a simple expression
- * (actually ((void)0)).
- *
- * level: level of detail of message, starting at 0. A level 'n'
- * message is preceded by 'n' 3-space indentations (not implemented
- * on Microsoft compilers unless PNG_DEBUG_FILE is also
- * defined, to allow debug DLL compilation with no standard IO).
- * message: a printf(3) style text string. A trailing '\n' is added
- * to the message.
- * arg: 0 to 2 arguments for printf(3) style substitution in message.
- */
-#ifndef PNGDEBUG_H
-#define PNGDEBUG_H
-/* These settings control the formatting of messages in png.c and pngerror.c */
-/* Moved to pngdebug.h at 1.5.0 */
-# ifndef PNG_LITERAL_SHARP
-# define PNG_LITERAL_SHARP 0x23
-# endif
-# ifndef PNG_LITERAL_LEFT_SQUARE_BRACKET
-# define PNG_LITERAL_LEFT_SQUARE_BRACKET 0x5b
-# endif
-# ifndef PNG_LITERAL_RIGHT_SQUARE_BRACKET
-# define PNG_LITERAL_RIGHT_SQUARE_BRACKET 0x5d
-# endif
-# ifndef PNG_STRING_NEWLINE
-# define PNG_STRING_NEWLINE "\n"
-# endif
-
-#ifdef PNG_DEBUG
-# if (PNG_DEBUG > 0)
-# if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER)
-# include <crtdbg.h>
-# if (PNG_DEBUG > 1)
-# ifndef _DEBUG
-# define _DEBUG
-# endif
-# ifndef png_debug
-# define png_debug(l,m) _RPT0(_CRT_WARN,m PNG_STRING_NEWLINE)
-# endif
-# ifndef png_debug1
-# define png_debug1(l,m,p1) _RPT1(_CRT_WARN,m PNG_STRING_NEWLINE,p1)
-# endif
-# ifndef png_debug2
-# define png_debug2(l,m,p1,p2) \
- _RPT2(_CRT_WARN,m PNG_STRING_NEWLINE,p1,p2)
-# endif
-# endif
-# else /* PNG_DEBUG_FILE || !_MSC_VER */
-# ifndef PNG_STDIO_SUPPORTED
-# include <stdio.h> /* not included yet */
-# endif
-# ifndef PNG_DEBUG_FILE
-# define PNG_DEBUG_FILE stderr
-# endif /* PNG_DEBUG_FILE */
-
-# if (PNG_DEBUG > 1)
-# ifdef __STDC__
-# ifndef png_debug
-# define png_debug(l,m) \
- do { \
- int num_tabs=l; \
- fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? " " : \
- (num_tabs==2 ? " " : (num_tabs>2 ? " " : "")))); \
- } while (0)
-# endif
-# ifndef png_debug1
-# define png_debug1(l,m,p1) \
- do { \
- int num_tabs=l; \
- fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? " " : \
- (num_tabs==2 ? " " : (num_tabs>2 ? " " : ""))),p1); \
- } while (0)
-# endif
-# ifndef png_debug2
-# define png_debug2(l,m,p1,p2) \
- do { \
- int num_tabs=l; \
- fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? " " : \
- (num_tabs==2 ? " " : (num_tabs>2 ? " " : ""))),p1,p2);\
- } while (0)
-# endif
-# else /* __STDC __ */
-# ifndef png_debug
-# define png_debug(l,m) \
- do { \
- int num_tabs=l; \
- char format[256]; \
- snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \
- (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \
- m,PNG_STRING_NEWLINE); \
- fprintf(PNG_DEBUG_FILE,format); \
- } while (0)
-# endif
-# ifndef png_debug1
-# define png_debug1(l,m,p1) \
- do { \
- int num_tabs=l; \
- char format[256]; \
- snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \
- (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \
- m,PNG_STRING_NEWLINE); \
- fprintf(PNG_DEBUG_FILE,format,p1); \
- } while (0)
-# endif
-# ifndef png_debug2
-# define png_debug2(l,m,p1,p2) \
- do { \
- int num_tabs=l; \
- char format[256]; \
- snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \
- (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \
- m,PNG_STRING_NEWLINE); \
- fprintf(PNG_DEBUG_FILE,format,p1,p2); \
- } while (0)
-# endif
-# endif /* __STDC __ */
-# endif /* (PNG_DEBUG > 1) */
-
-# endif /* _MSC_VER */
-# endif /* (PNG_DEBUG > 0) */
-#endif /* PNG_DEBUG */
-#ifndef png_debug
-# define png_debug(l, m) ((void)0)
-#endif
-#ifndef png_debug1
-# define png_debug1(l, m, p1) ((void)0)
-#endif
-#ifndef png_debug2
-# define png_debug2(l, m, p1, p2) ((void)0)
-#endif
-#endif /* PNGDEBUG_H */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngerror.c b/3rdparty/libpng/libpng-1.6.37/pngerror.c
deleted file mode 100644
index ec3a709..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngerror.c
+++ /dev/null
@@ -1,963 +0,0 @@
-
-/* pngerror.c - stub functions for i/o and memory allocation
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * This file provides a location for all error handling. Users who
- * need special error handling are expected to write replacement functions
- * and use png_set_error_fn() to use those functions. See the instructions
- * at each function.
- */
-
-#include "pngpriv.h"
-
-#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
-
-static PNG_FUNCTION(void, png_default_error,PNGARG((png_const_structrp png_ptr,
- png_const_charp error_message)),PNG_NORETURN);
-
-#ifdef PNG_WARNINGS_SUPPORTED
-static void /* PRIVATE */
-png_default_warning PNGARG((png_const_structrp png_ptr,
- png_const_charp warning_message));
-#endif /* WARNINGS */
-
-/* This function is called whenever there is a fatal error. This function
- * should not be changed. If there is a need to handle errors differently,
- * you should supply a replacement error function and use png_set_error_fn()
- * to replace the error function at run-time.
- */
-#ifdef PNG_ERROR_TEXT_SUPPORTED
-PNG_FUNCTION(void,PNGAPI
-png_error,(png_const_structrp png_ptr, png_const_charp error_message),
- PNG_NORETURN)
-{
-#ifdef PNG_ERROR_NUMBERS_SUPPORTED
- char msg[16];
- if (png_ptr != NULL)
- {
- if ((png_ptr->flags &
- (PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) != 0)
- {
- if (*error_message == PNG_LITERAL_SHARP)
- {
- /* Strip "#nnnn " from beginning of error message. */
- int offset;
- for (offset = 1; offset<15; offset++)
- if (error_message[offset] == ' ')
- break;
-
- if ((png_ptr->flags & PNG_FLAG_STRIP_ERROR_TEXT) != 0)
- {
- int i;
- for (i = 0; i < offset - 1; i++)
- msg[i] = error_message[i + 1];
- msg[i - 1] = '\0';
- error_message = msg;
- }
-
- else
- error_message += offset;
- }
-
- else
- {
- if ((png_ptr->flags & PNG_FLAG_STRIP_ERROR_TEXT) != 0)
- {
- msg[0] = '0';
- msg[1] = '\0';
- error_message = msg;
- }
- }
- }
- }
-#endif
- if (png_ptr != NULL && png_ptr->error_fn != NULL)
- (*(png_ptr->error_fn))(png_constcast(png_structrp,png_ptr),
- error_message);
-
- /* If the custom handler doesn't exist, or if it returns,
- use the default handler, which will not return. */
- png_default_error(png_ptr, error_message);
-}
-#else
-PNG_FUNCTION(void,PNGAPI
-png_err,(png_const_structrp png_ptr),PNG_NORETURN)
-{
- /* Prior to 1.5.2 the error_fn received a NULL pointer, expressed
- * erroneously as '\0', instead of the empty string "". This was
- * apparently an error, introduced in libpng-1.2.20, and png_default_error
- * will crash in this case.
- */
- if (png_ptr != NULL && png_ptr->error_fn != NULL)
- (*(png_ptr->error_fn))(png_constcast(png_structrp,png_ptr), "");
-
- /* If the custom handler doesn't exist, or if it returns,
- use the default handler, which will not return. */
- png_default_error(png_ptr, "");
-}
-#endif /* ERROR_TEXT */
-
-/* Utility to safely appends strings to a buffer. This never errors out so
- * error checking is not required in the caller.
- */
-size_t
-png_safecat(png_charp buffer, size_t bufsize, size_t pos,
- png_const_charp string)
-{
- if (buffer != NULL && pos < bufsize)
- {
- if (string != NULL)
- while (*string != '\0' && pos < bufsize-1)
- buffer[pos++] = *string++;
-
- buffer[pos] = '\0';
- }
-
- return pos;
-}
-
-#if defined(PNG_WARNINGS_SUPPORTED) || defined(PNG_TIME_RFC1123_SUPPORTED)
-/* Utility to dump an unsigned value into a buffer, given a start pointer and
- * and end pointer (which should point just *beyond* the end of the buffer!)
- * Returns the pointer to the start of the formatted string.
- */
-png_charp
-png_format_number(png_const_charp start, png_charp end, int format,
- png_alloc_size_t number)
-{
- int count = 0; /* number of digits output */
- int mincount = 1; /* minimum number required */
- int output = 0; /* digit output (for the fixed point format) */
-
- *--end = '\0';
-
- /* This is written so that the loop always runs at least once, even with
- * number zero.
- */
- while (end > start && (number != 0 || count < mincount))
- {
-
- static const char digits[] = "0123456789ABCDEF";
-
- switch (format)
- {
- case PNG_NUMBER_FORMAT_fixed:
- /* Needs five digits (the fraction) */
- mincount = 5;
- if (output != 0 || number % 10 != 0)
- {
- *--end = digits[number % 10];
- output = 1;
- }
- number /= 10;
- break;
-
- case PNG_NUMBER_FORMAT_02u:
- /* Expects at least 2 digits. */
- mincount = 2;
- /* FALLTHROUGH */
-
- case PNG_NUMBER_FORMAT_u:
- *--end = digits[number % 10];
- number /= 10;
- break;
-
- case PNG_NUMBER_FORMAT_02x:
- /* This format expects at least two digits */
- mincount = 2;
- /* FALLTHROUGH */
-
- case PNG_NUMBER_FORMAT_x:
- *--end = digits[number & 0xf];
- number >>= 4;
- break;
-
- default: /* an error */
- number = 0;
- break;
- }
-
- /* Keep track of the number of digits added */
- ++count;
-
- /* Float a fixed number here: */
- if ((format == PNG_NUMBER_FORMAT_fixed) && (count == 5) && (end > start))
- {
- /* End of the fraction, but maybe nothing was output? In that case
- * drop the decimal point. If the number is a true zero handle that
- * here.
- */
- if (output != 0)
- *--end = '.';
- else if (number == 0) /* and !output */
- *--end = '0';
- }
- }
-
- return end;
-}
-#endif
-
-#ifdef PNG_WARNINGS_SUPPORTED
-/* This function is called whenever there is a non-fatal error. This function
- * should not be changed. If there is a need to handle warnings differently,
- * you should supply a replacement warning function and use
- * png_set_error_fn() to replace the warning function at run-time.
- */
-void PNGAPI
-png_warning(png_const_structrp png_ptr, png_const_charp warning_message)
-{
- int offset = 0;
- if (png_ptr != NULL)
- {
-#ifdef PNG_ERROR_NUMBERS_SUPPORTED
- if ((png_ptr->flags &
- (PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) != 0)
-#endif
- {
- if (*warning_message == PNG_LITERAL_SHARP)
- {
- for (offset = 1; offset < 15; offset++)
- if (warning_message[offset] == ' ')
- break;
- }
- }
- }
- if (png_ptr != NULL && png_ptr->warning_fn != NULL)
- (*(png_ptr->warning_fn))(png_constcast(png_structrp,png_ptr),
- warning_message + offset);
- else
- png_default_warning(png_ptr, warning_message + offset);
-}
-
-/* These functions support 'formatted' warning messages with up to
- * PNG_WARNING_PARAMETER_COUNT parameters. In the format string the parameter
- * is introduced by @<number>, where 'number' starts at 1. This follows the
- * standard established by X/Open for internationalizable error messages.
- */
-void
-png_warning_parameter(png_warning_parameters p, int number,
- png_const_charp string)
-{
- if (number > 0 && number <= PNG_WARNING_PARAMETER_COUNT)
- (void)png_safecat(p[number-1], (sizeof p[number-1]), 0, string);
-}
-
-void
-png_warning_parameter_unsigned(png_warning_parameters p, int number, int format,
- png_alloc_size_t value)
-{
- char buffer[PNG_NUMBER_BUFFER_SIZE];
- png_warning_parameter(p, number, PNG_FORMAT_NUMBER(buffer, format, value));
-}
-
-void
-png_warning_parameter_signed(png_warning_parameters p, int number, int format,
- png_int_32 value)
-{
- png_alloc_size_t u;
- png_charp str;
- char buffer[PNG_NUMBER_BUFFER_SIZE];
-
- /* Avoid overflow by doing the negate in a png_alloc_size_t: */
- u = (png_alloc_size_t)value;
- if (value < 0)
- u = ~u + 1;
-
- str = PNG_FORMAT_NUMBER(buffer, format, u);
-
- if (value < 0 && str > buffer)
- *--str = '-';
-
- png_warning_parameter(p, number, str);
-}
-
-void
-png_formatted_warning(png_const_structrp png_ptr, png_warning_parameters p,
- png_const_charp message)
-{
- /* The internal buffer is just 192 bytes - enough for all our messages,
- * overflow doesn't happen because this code checks! If someone figures
- * out how to send us a message longer than 192 bytes, all that will
- * happen is that the message will be truncated appropriately.
- */
- size_t i = 0; /* Index in the msg[] buffer: */
- char msg[192];
-
- /* Each iteration through the following loop writes at most one character
- * to msg[i++] then returns here to validate that there is still space for
- * the trailing '\0'. It may (in the case of a parameter) read more than
- * one character from message[]; it must check for '\0' and continue to the
- * test if it finds the end of string.
- */
- while (i<(sizeof msg)-1 && *message != '\0')
- {
- /* '@' at end of string is now just printed (previously it was skipped);
- * it is an error in the calling code to terminate the string with @.
- */
- if (p != NULL && *message == '@' && message[1] != '\0')
- {
- int parameter_char = *++message; /* Consume the '@' */
- static const char valid_parameters[] = "123456789";
- int parameter = 0;
-
- /* Search for the parameter digit, the index in the string is the
- * parameter to use.
- */
- while (valid_parameters[parameter] != parameter_char &&
- valid_parameters[parameter] != '\0')
- ++parameter;
-
- /* If the parameter digit is out of range it will just get printed. */
- if (parameter < PNG_WARNING_PARAMETER_COUNT)
- {
- /* Append this parameter */
- png_const_charp parm = p[parameter];
- png_const_charp pend = p[parameter] + (sizeof p[parameter]);
-
- /* No need to copy the trailing '\0' here, but there is no guarantee
- * that parm[] has been initialized, so there is no guarantee of a
- * trailing '\0':
- */
- while (i<(sizeof msg)-1 && *parm != '\0' && parm < pend)
- msg[i++] = *parm++;
-
- /* Consume the parameter digit too: */
- ++message;
- continue;
- }
-
- /* else not a parameter and there is a character after the @ sign; just
- * copy that. This is known not to be '\0' because of the test above.
- */
- }
-
- /* At this point *message can't be '\0', even in the bad parameter case
- * above where there is a lone '@' at the end of the message string.
- */
- msg[i++] = *message++;
- }
-
- /* i is always less than (sizeof msg), so: */
- msg[i] = '\0';
-
- /* And this is the formatted message. It may be larger than
- * PNG_MAX_ERROR_TEXT, but that is only used for 'chunk' errors and these
- * are not (currently) formatted.
- */
- png_warning(png_ptr, msg);
-}
-#endif /* WARNINGS */
-
-#ifdef PNG_BENIGN_ERRORS_SUPPORTED
-void PNGAPI
-png_benign_error(png_const_structrp png_ptr, png_const_charp error_message)
-{
- if ((png_ptr->flags & PNG_FLAG_BENIGN_ERRORS_WARN) != 0)
- {
-# ifdef PNG_READ_SUPPORTED
- if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 &&
- png_ptr->chunk_name != 0)
- png_chunk_warning(png_ptr, error_message);
- else
-# endif
- png_warning(png_ptr, error_message);
- }
-
- else
- {
-# ifdef PNG_READ_SUPPORTED
- if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 &&
- png_ptr->chunk_name != 0)
- png_chunk_error(png_ptr, error_message);
- else
-# endif
- png_error(png_ptr, error_message);
- }
-
-# ifndef PNG_ERROR_TEXT_SUPPORTED
- PNG_UNUSED(error_message)
-# endif
-}
-
-void /* PRIVATE */
-png_app_warning(png_const_structrp png_ptr, png_const_charp error_message)
-{
- if ((png_ptr->flags & PNG_FLAG_APP_WARNINGS_WARN) != 0)
- png_warning(png_ptr, error_message);
- else
- png_error(png_ptr, error_message);
-
-# ifndef PNG_ERROR_TEXT_SUPPORTED
- PNG_UNUSED(error_message)
-# endif
-}
-
-void /* PRIVATE */
-png_app_error(png_const_structrp png_ptr, png_const_charp error_message)
-{
- if ((png_ptr->flags & PNG_FLAG_APP_ERRORS_WARN) != 0)
- png_warning(png_ptr, error_message);
- else
- png_error(png_ptr, error_message);
-
-# ifndef PNG_ERROR_TEXT_SUPPORTED
- PNG_UNUSED(error_message)
-# endif
-}
-#endif /* BENIGN_ERRORS */
-
-#define PNG_MAX_ERROR_TEXT 196 /* Currently limited by profile_error in png.c */
-#if defined(PNG_WARNINGS_SUPPORTED) || \
- (defined(PNG_READ_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED))
-/* These utilities are used internally to build an error message that relates
- * to the current chunk. The chunk name comes from png_ptr->chunk_name,
- * which is used to prefix the message. The message is limited in length
- * to 63 bytes. The name characters are output as hex digits wrapped in []
- * if the character is invalid.
- */
-#define isnonalpha(c) ((c) < 65 || (c) > 122 || ((c) > 90 && (c) < 97))
-static const char png_digit[16] = {
- '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
- 'A', 'B', 'C', 'D', 'E', 'F'
-};
-
-static void /* PRIVATE */
-png_format_buffer(png_const_structrp png_ptr, png_charp buffer, png_const_charp
- error_message)
-{
- png_uint_32 chunk_name = png_ptr->chunk_name;
- int iout = 0, ishift = 24;
-
- while (ishift >= 0)
- {
- int c = (int)(chunk_name >> ishift) & 0xff;
-
- ishift -= 8;
- if (isnonalpha(c) != 0)
- {
- buffer[iout++] = PNG_LITERAL_LEFT_SQUARE_BRACKET;
- buffer[iout++] = png_digit[(c & 0xf0) >> 4];
- buffer[iout++] = png_digit[c & 0x0f];
- buffer[iout++] = PNG_LITERAL_RIGHT_SQUARE_BRACKET;
- }
-
- else
- {
- buffer[iout++] = (char)c;
- }
- }
-
- if (error_message == NULL)
- buffer[iout] = '\0';
-
- else
- {
- int iin = 0;
-
- buffer[iout++] = ':';
- buffer[iout++] = ' ';
-
- while (iin < PNG_MAX_ERROR_TEXT-1 && error_message[iin] != '\0')
- buffer[iout++] = error_message[iin++];
-
- /* iin < PNG_MAX_ERROR_TEXT, so the following is safe: */
- buffer[iout] = '\0';
- }
-}
-#endif /* WARNINGS || ERROR_TEXT */
-
-#if defined(PNG_READ_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED)
-PNG_FUNCTION(void,PNGAPI
-png_chunk_error,(png_const_structrp png_ptr, png_const_charp error_message),
- PNG_NORETURN)
-{
- char msg[18+PNG_MAX_ERROR_TEXT];
- if (png_ptr == NULL)
- png_error(png_ptr, error_message);
-
- else
- {
- png_format_buffer(png_ptr, msg, error_message);
- png_error(png_ptr, msg);
- }
-}
-#endif /* READ && ERROR_TEXT */
-
-#ifdef PNG_WARNINGS_SUPPORTED
-void PNGAPI
-png_chunk_warning(png_const_structrp png_ptr, png_const_charp warning_message)
-{
- char msg[18+PNG_MAX_ERROR_TEXT];
- if (png_ptr == NULL)
- png_warning(png_ptr, warning_message);
-
- else
- {
- png_format_buffer(png_ptr, msg, warning_message);
- png_warning(png_ptr, msg);
- }
-}
-#endif /* WARNINGS */
-
-#ifdef PNG_READ_SUPPORTED
-#ifdef PNG_BENIGN_ERRORS_SUPPORTED
-void PNGAPI
-png_chunk_benign_error(png_const_structrp png_ptr, png_const_charp
- error_message)
-{
- if ((png_ptr->flags & PNG_FLAG_BENIGN_ERRORS_WARN) != 0)
- png_chunk_warning(png_ptr, error_message);
-
- else
- png_chunk_error(png_ptr, error_message);
-
-# ifndef PNG_ERROR_TEXT_SUPPORTED
- PNG_UNUSED(error_message)
-# endif
-}
-#endif
-#endif /* READ */
-
-void /* PRIVATE */
-png_chunk_report(png_const_structrp png_ptr, png_const_charp message, int error)
-{
-# ifndef PNG_WARNINGS_SUPPORTED
- PNG_UNUSED(message)
-# endif
-
- /* This is always supported, but for just read or just write it
- * unconditionally does the right thing.
- */
-# if defined(PNG_READ_SUPPORTED) && defined(PNG_WRITE_SUPPORTED)
- if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0)
-# endif
-
-# ifdef PNG_READ_SUPPORTED
- {
- if (error < PNG_CHUNK_ERROR)
- png_chunk_warning(png_ptr, message);
-
- else
- png_chunk_benign_error(png_ptr, message);
- }
-# endif
-
-# if defined(PNG_READ_SUPPORTED) && defined(PNG_WRITE_SUPPORTED)
- else if ((png_ptr->mode & PNG_IS_READ_STRUCT) == 0)
-# endif
-
-# ifdef PNG_WRITE_SUPPORTED
- {
- if (error < PNG_CHUNK_WRITE_ERROR)
- png_app_warning(png_ptr, message);
-
- else
- png_app_error(png_ptr, message);
- }
-# endif
-}
-
-#ifdef PNG_ERROR_TEXT_SUPPORTED
-#ifdef PNG_FLOATING_POINT_SUPPORTED
-PNG_FUNCTION(void,
-png_fixed_error,(png_const_structrp png_ptr, png_const_charp name),PNG_NORETURN)
-{
-# define fixed_message "fixed point overflow in "
-# define fixed_message_ln ((sizeof fixed_message)-1)
- unsigned int iin;
- char msg[fixed_message_ln+PNG_MAX_ERROR_TEXT];
- memcpy(msg, fixed_message, fixed_message_ln);
- iin = 0;
- if (name != NULL)
- while (iin < (PNG_MAX_ERROR_TEXT-1) && name[iin] != 0)
- {
- msg[fixed_message_ln + iin] = name[iin];
- ++iin;
- }
- msg[fixed_message_ln + iin] = 0;
- png_error(png_ptr, msg);
-}
-#endif
-#endif
-
-#ifdef PNG_SETJMP_SUPPORTED
-/* This API only exists if ANSI-C style error handling is used,
- * otherwise it is necessary for png_default_error to be overridden.
- */
-jmp_buf* PNGAPI
-png_set_longjmp_fn(png_structrp png_ptr, png_longjmp_ptr longjmp_fn,
- size_t jmp_buf_size)
-{
- /* From libpng 1.6.0 the app gets one chance to set a 'jmpbuf_size' value
- * and it must not change after that. Libpng doesn't care how big the
- * buffer is, just that it doesn't change.
- *
- * If the buffer size is no *larger* than the size of jmp_buf when libpng is
- * compiled a built in jmp_buf is returned; this preserves the pre-1.6.0
- * semantics that this call will not fail. If the size is larger, however,
- * the buffer is allocated and this may fail, causing the function to return
- * NULL.
- */
- if (png_ptr == NULL)
- return NULL;
-
- if (png_ptr->jmp_buf_ptr == NULL)
- {
- png_ptr->jmp_buf_size = 0; /* not allocated */
-
- if (jmp_buf_size <= (sizeof png_ptr->jmp_buf_local))
- png_ptr->jmp_buf_ptr = &png_ptr->jmp_buf_local;
-
- else
- {
- png_ptr->jmp_buf_ptr = png_voidcast(jmp_buf *,
- png_malloc_warn(png_ptr, jmp_buf_size));
-
- if (png_ptr->jmp_buf_ptr == NULL)
- return NULL; /* new NULL return on OOM */
-
- png_ptr->jmp_buf_size = jmp_buf_size;
- }
- }
-
- else /* Already allocated: check the size */
- {
- size_t size = png_ptr->jmp_buf_size;
-
- if (size == 0)
- {
- size = (sizeof png_ptr->jmp_buf_local);
- if (png_ptr->jmp_buf_ptr != &png_ptr->jmp_buf_local)
- {
- /* This is an internal error in libpng: somehow we have been left
- * with a stack allocated jmp_buf when the application regained
- * control. It's always possible to fix this up, but for the moment
- * this is a png_error because that makes it easy to detect.
- */
- png_error(png_ptr, "Libpng jmp_buf still allocated");
- /* png_ptr->jmp_buf_ptr = &png_ptr->jmp_buf_local; */
- }
- }
-
- if (size != jmp_buf_size)
- {
- png_warning(png_ptr, "Application jmp_buf size changed");
- return NULL; /* caller will probably crash: no choice here */
- }
- }
-
- /* Finally fill in the function, now we have a satisfactory buffer. It is
- * valid to change the function on every call.
- */
- png_ptr->longjmp_fn = longjmp_fn;
- return png_ptr->jmp_buf_ptr;
-}
-
-void /* PRIVATE */
-png_free_jmpbuf(png_structrp png_ptr)
-{
- if (png_ptr != NULL)
- {
- jmp_buf *jb = png_ptr->jmp_buf_ptr;
-
- /* A size of 0 is used to indicate a local, stack, allocation of the
- * pointer; used here and in png.c
- */
- if (jb != NULL && png_ptr->jmp_buf_size > 0)
- {
-
- /* This stuff is so that a failure to free the error control structure
- * does not leave libpng in a state with no valid error handling: the
- * free always succeeds, if there is an error it gets ignored.
- */
- if (jb != &png_ptr->jmp_buf_local)
- {
- /* Make an internal, libpng, jmp_buf to return here */
- jmp_buf free_jmp_buf;
-
- if (!setjmp(free_jmp_buf))
- {
- png_ptr->jmp_buf_ptr = &free_jmp_buf; /* come back here */
- png_ptr->jmp_buf_size = 0; /* stack allocation */
- png_ptr->longjmp_fn = longjmp;
- png_free(png_ptr, jb); /* Return to setjmp on error */
- }
- }
- }
-
- /* *Always* cancel everything out: */
- png_ptr->jmp_buf_size = 0;
- png_ptr->jmp_buf_ptr = NULL;
- png_ptr->longjmp_fn = 0;
- }
-}
-#endif
-
-/* This is the default error handling function. Note that replacements for
- * this function MUST NOT RETURN, or the program will likely crash. This
- * function is used by default, or if the program supplies NULL for the
- * error function pointer in png_set_error_fn().
- */
-static PNG_FUNCTION(void /* PRIVATE */,
-png_default_error,(png_const_structrp png_ptr, png_const_charp error_message),
- PNG_NORETURN)
-{
-#ifdef PNG_CONSOLE_IO_SUPPORTED
-#ifdef PNG_ERROR_NUMBERS_SUPPORTED
- /* Check on NULL only added in 1.5.4 */
- if (error_message != NULL && *error_message == PNG_LITERAL_SHARP)
- {
- /* Strip "#nnnn " from beginning of error message. */
- int offset;
- char error_number[16];
- for (offset = 0; offset<15; offset++)
- {
- error_number[offset] = error_message[offset + 1];
- if (error_message[offset] == ' ')
- break;
- }
-
- if ((offset > 1) && (offset < 15))
- {
- error_number[offset - 1] = '\0';
- fprintf(stderr, "libpng error no. %s: %s",
- error_number, error_message + offset + 1);
- fprintf(stderr, PNG_STRING_NEWLINE);
- }
-
- else
- {
- fprintf(stderr, "libpng error: %s, offset=%d",
- error_message, offset);
- fprintf(stderr, PNG_STRING_NEWLINE);
- }
- }
- else
-#endif
- {
- fprintf(stderr, "libpng error: %s", error_message ? error_message :
- "undefined");
- fprintf(stderr, PNG_STRING_NEWLINE);
- }
-#else
- PNG_UNUSED(error_message) /* Make compiler happy */
-#endif
- png_longjmp(png_ptr, 1);
-}
-
-PNG_FUNCTION(void,PNGAPI
-png_longjmp,(png_const_structrp png_ptr, int val),PNG_NORETURN)
-{
-#ifdef PNG_SETJMP_SUPPORTED
- if (png_ptr != NULL && png_ptr->longjmp_fn != NULL &&
- png_ptr->jmp_buf_ptr != NULL)
- png_ptr->longjmp_fn(*png_ptr->jmp_buf_ptr, val);
-#else
- PNG_UNUSED(png_ptr)
- PNG_UNUSED(val)
-#endif
-
- /* If control reaches this point, png_longjmp() must not return. The only
- * choice is to terminate the whole process (or maybe the thread); to do
- * this the ANSI-C abort() function is used unless a different method is
- * implemented by overriding the default configuration setting for
- * PNG_ABORT().
- */
- PNG_ABORT();
-}
-
-#ifdef PNG_WARNINGS_SUPPORTED
-/* This function is called when there is a warning, but the library thinks
- * it can continue anyway. Replacement functions don't have to do anything
- * here if you don't want them to. In the default configuration, png_ptr is
- * not used, but it is passed in case it may be useful.
- */
-static void /* PRIVATE */
-png_default_warning(png_const_structrp png_ptr, png_const_charp warning_message)
-{
-#ifdef PNG_CONSOLE_IO_SUPPORTED
-# ifdef PNG_ERROR_NUMBERS_SUPPORTED
- if (*warning_message == PNG_LITERAL_SHARP)
- {
- int offset;
- char warning_number[16];
- for (offset = 0; offset < 15; offset++)
- {
- warning_number[offset] = warning_message[offset + 1];
- if (warning_message[offset] == ' ')
- break;
- }
-
- if ((offset > 1) && (offset < 15))
- {
- warning_number[offset + 1] = '\0';
- fprintf(stderr, "libpng warning no. %s: %s",
- warning_number, warning_message + offset);
- fprintf(stderr, PNG_STRING_NEWLINE);
- }
-
- else
- {
- fprintf(stderr, "libpng warning: %s",
- warning_message);
- fprintf(stderr, PNG_STRING_NEWLINE);
- }
- }
- else
-# endif
-
- {
- fprintf(stderr, "libpng warning: %s", warning_message);
- fprintf(stderr, PNG_STRING_NEWLINE);
- }
-#else
- PNG_UNUSED(warning_message) /* Make compiler happy */
-#endif
- PNG_UNUSED(png_ptr) /* Make compiler happy */
-}
-#endif /* WARNINGS */
-
-/* This function is called when the application wants to use another method
- * of handling errors and warnings. Note that the error function MUST NOT
- * return to the calling routine or serious problems will occur. The return
- * method used in the default routine calls longjmp(png_ptr->jmp_buf_ptr, 1)
- */
-void PNGAPI
-png_set_error_fn(png_structrp png_ptr, png_voidp error_ptr,
- png_error_ptr error_fn, png_error_ptr warning_fn)
-{
- if (png_ptr == NULL)
- return;
-
- png_ptr->error_ptr = error_ptr;
- png_ptr->error_fn = error_fn;
-#ifdef PNG_WARNINGS_SUPPORTED
- png_ptr->warning_fn = warning_fn;
-#else
- PNG_UNUSED(warning_fn)
-#endif
-}
-
-
-/* This function returns a pointer to the error_ptr associated with the user
- * functions. The application should free any memory associated with this
- * pointer before png_write_destroy and png_read_destroy are called.
- */
-png_voidp PNGAPI
-png_get_error_ptr(png_const_structrp png_ptr)
-{
- if (png_ptr == NULL)
- return NULL;
-
- return ((png_voidp)png_ptr->error_ptr);
-}
-
-
-#ifdef PNG_ERROR_NUMBERS_SUPPORTED
-void PNGAPI
-png_set_strip_error_numbers(png_structrp png_ptr, png_uint_32 strip_mode)
-{
- if (png_ptr != NULL)
- {
- png_ptr->flags &=
- ((~(PNG_FLAG_STRIP_ERROR_NUMBERS |
- PNG_FLAG_STRIP_ERROR_TEXT))&strip_mode);
- }
-}
-#endif
-
-#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) ||\
- defined(PNG_SIMPLIFIED_WRITE_SUPPORTED)
- /* Currently the above both depend on SETJMP_SUPPORTED, however it would be
- * possible to implement without setjmp support just so long as there is some
- * way to handle the error return here:
- */
-PNG_FUNCTION(void /* PRIVATE */, (PNGCBAPI
-png_safe_error),(png_structp png_nonconst_ptr, png_const_charp error_message),
- PNG_NORETURN)
-{
- png_const_structrp png_ptr = png_nonconst_ptr;
- png_imagep image = png_voidcast(png_imagep, png_ptr->error_ptr);
-
- /* An error is always logged here, overwriting anything (typically a warning)
- * that is already there:
- */
- if (image != NULL)
- {
- png_safecat(image->message, (sizeof image->message), 0, error_message);
- image->warning_or_error |= PNG_IMAGE_ERROR;
-
- /* Retrieve the jmp_buf from within the png_control, making this work for
- * C++ compilation too is pretty tricky: C++ wants a pointer to the first
- * element of a jmp_buf, but C doesn't tell us the type of that.
- */
- if (image->opaque != NULL && image->opaque->error_buf != NULL)
- longjmp(png_control_jmp_buf(image->opaque), 1);
-
- /* Missing longjmp buffer, the following is to help debugging: */
- {
- size_t pos = png_safecat(image->message, (sizeof image->message), 0,
- "bad longjmp: ");
- png_safecat(image->message, (sizeof image->message), pos,
- error_message);
- }
- }
-
- /* Here on an internal programming error. */
- abort();
-}
-
-#ifdef PNG_WARNINGS_SUPPORTED
-void /* PRIVATE */ PNGCBAPI
-png_safe_warning(png_structp png_nonconst_ptr, png_const_charp warning_message)
-{
- png_const_structrp png_ptr = png_nonconst_ptr;
- png_imagep image = png_voidcast(png_imagep, png_ptr->error_ptr);
-
- /* A warning is only logged if there is no prior warning or error. */
- if (image->warning_or_error == 0)
- {
- png_safecat(image->message, (sizeof image->message), 0, warning_message);
- image->warning_or_error |= PNG_IMAGE_WARNING;
- }
-}
-#endif
-
-int /* PRIVATE */
-png_safe_execute(png_imagep image_in, int (*function)(png_voidp), png_voidp arg)
-{
- volatile png_imagep image = image_in;
- volatile int result;
- volatile png_voidp saved_error_buf;
- jmp_buf safe_jmpbuf;
-
- /* Safely execute function(arg) with png_error returning to this function. */
- saved_error_buf = image->opaque->error_buf;
- result = setjmp(safe_jmpbuf) == 0;
-
- if (result != 0)
- {
-
- image->opaque->error_buf = safe_jmpbuf;
- result = function(arg);
- }
-
- image->opaque->error_buf = saved_error_buf;
-
- /* And do the cleanup prior to any failure return. */
- if (result == 0)
- png_image_free(image);
-
- return result;
-}
-#endif /* SIMPLIFIED READ || SIMPLIFIED_WRITE */
-#endif /* READ || WRITE */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngerror.lo b/3rdparty/libpng/libpng-1.6.37/pngerror.lo
deleted file mode 100644
index c13aa1e..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngerror.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# pngerror.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/pngerror.o'
-
-# Name of the non-PIC object
-non_pic_object='pngerror.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/pngerror.o b/3rdparty/libpng/libpng-1.6.37/pngerror.o
deleted file mode 100644
index 9b2ec19..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngerror.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngfix b/3rdparty/libpng/libpng-1.6.37/pngfix
deleted file mode 100755
index fdf8c8f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngfix
+++ /dev/null
@@ -1,210 +0,0 @@
-#! /bin/bash
-
-# pngfix - temporary wrapper script for .libs/pngfix
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# The pngfix program cannot be directly executed until all the libtool
-# libraries that it depends on are installed.
-#
-# This wrapper script should never be moved out of the build directory.
-# If it is, it will not operate correctly.
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
-
-# Be Bourne compatible
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
-else
- case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-relink_command=""
-
-# This environment variable determines our operation mode.
-if test "$libtool_install_magic" = "%%%MAGIC variable%%%"; then
- # install mode needs the following variables:
- generated_by_libtool_version='2.4.6'
- notinst_deplibs=' libpng16.la'
-else
- # When we are sourced in execute mode, $file and $ECHO are already set.
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- file="$0"
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
- eval 'cat <<_LTECHO_EOF
-$1
-_LTECHO_EOF'
-}
- ECHO="printf %s\\n"
- fi
-
-# Very basic option parsing. These options are (a) specific to
-# the libtool wrapper, (b) are identical between the wrapper
-# /script/ and the wrapper /executable/ that is used only on
-# windows platforms, and (c) all begin with the string --lt-
-# (application programs are unlikely to have options that match
-# this pattern).
-#
-# There are only two supported options: --lt-debug and
-# --lt-dump-script. There is, deliberately, no --lt-help.
-#
-# The first argument to this parsing function should be the
-# script's ./libtool value, followed by no.
-lt_option_debug=
-func_parse_lt_options ()
-{
- lt_script_arg0=$0
- shift
- for lt_opt
- do
- case "$lt_opt" in
- --lt-debug) lt_option_debug=1 ;;
- --lt-dump-script)
- lt_dump_D=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%/[^/]*$%%'`
- test "X$lt_dump_D" = "X$lt_script_arg0" && lt_dump_D=.
- lt_dump_F=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%^.*/%%'`
- cat "$lt_dump_D/$lt_dump_F"
- exit 0
- ;;
- --lt-*)
- $ECHO "Unrecognized --lt- option: '$lt_opt'" 1>&2
- exit 1
- ;;
- esac
- done
-
- # Print the debug banner immediately:
- if test -n "$lt_option_debug"; then
- echo "pngfix:pngfix:$LINENO: libtool wrapper (GNU libtool) 2.4.6" 1>&2
- fi
-}
-
-# Used when --lt-debug. Prints its arguments to stdout
-# (redirection is the responsibility of the caller)
-func_lt_dump_args ()
-{
- lt_dump_args_N=1;
- for lt_arg
- do
- $ECHO "pngfix:pngfix:$LINENO: newargv[$lt_dump_args_N]: $lt_arg"
- lt_dump_args_N=`expr $lt_dump_args_N + 1`
- done
-}
-
-# Core function for launching the target application
-func_exec_program_core ()
-{
-
- if test -n "$lt_option_debug"; then
- $ECHO "pngfix:pngfix:$LINENO: newargv[0]: $progdir/$program" 1>&2
- func_lt_dump_args ${1+"$@"} 1>&2
- fi
- exec "$progdir/$program" ${1+"$@"}
-
- $ECHO "$0: cannot exec $program $*" 1>&2
- exit 1
-}
-
-# A function to encapsulate launching the target application
-# Strips options in the --lt-* namespace from $@ and
-# launches target application with the remaining arguments.
-func_exec_program ()
-{
- case " $* " in
- *\ --lt-*)
- for lt_wr_arg
- do
- case $lt_wr_arg in
- --lt-*) ;;
- *) set x "$@" "$lt_wr_arg"; shift;;
- esac
- shift
- done ;;
- esac
- func_exec_program_core ${1+"$@"}
-}
-
- # Parse options
- func_parse_lt_options "$0" ${1+"$@"}
-
- # Find the directory that this script lives in.
- thisdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
- test "x$thisdir" = "x$file" && thisdir=.
-
- # Follow symbolic links until we get to the real thisdir.
- file=`ls -ld "$file" | /bin/sed -n 's/.*-> //p'`
- while test -n "$file"; do
- destdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
-
- # If there was a directory component, then change thisdir.
- if test "x$destdir" != "x$file"; then
- case "$destdir" in
- [\\/]* | [A-Za-z]:[\\/]*) thisdir="$destdir" ;;
- *) thisdir="$thisdir/$destdir" ;;
- esac
- fi
-
- file=`$ECHO "$file" | /bin/sed 's%^.*/%%'`
- file=`ls -ld "$thisdir/$file" | /bin/sed -n 's/.*-> //p'`
- done
-
- # Usually 'no', except on cygwin/mingw when embedded into
- # the cwrapper.
- WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=no
- if test "$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR" = "yes"; then
- # special case for '.'
- if test "$thisdir" = "."; then
- thisdir=`pwd`
- fi
- # remove .libs from thisdir
- case "$thisdir" in
- *[\\/].libs ) thisdir=`$ECHO "$thisdir" | /bin/sed 's%[\\/][^\\/]*$%%'` ;;
- .libs ) thisdir=. ;;
- esac
- fi
-
- # Try to get the absolute directory name.
- absdir=`cd "$thisdir" && pwd`
- test -n "$absdir" && thisdir="$absdir"
-
- program='pngfix'
- progdir="$thisdir/.libs"
-
-
- if test -f "$progdir/$program"; then
- # Add our own library path to LD_LIBRARY_PATH
- LD_LIBRARY_PATH="/home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/.libs:$LD_LIBRARY_PATH"
-
- # Some systems cannot cope with colon-terminated LD_LIBRARY_PATH
- # The second colon is a workaround for a bug in BeOS R4 sed
- LD_LIBRARY_PATH=`$ECHO "$LD_LIBRARY_PATH" | /bin/sed 's/::*$//'`
-
- export LD_LIBRARY_PATH
-
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- # Run the actual program with our arguments.
- func_exec_program ${1+"$@"}
- fi
- else
- # The program doesn't exist.
- $ECHO "$0: error: '$progdir/$program' does not exist" 1>&2
- $ECHO "This script is just a wrapper for $program." 1>&2
- $ECHO "See the libtool documentation for more information." 1>&2
- exit 1
- fi
-fi
diff --git a/3rdparty/libpng/libpng-1.6.37/pngget.c b/3rdparty/libpng/libpng-1.6.37/pngget.c
deleted file mode 100644
index 5abf1ef..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngget.c
+++ /dev/null
@@ -1,1249 +0,0 @@
-
-/* pngget.c - retrieval of values from info struct
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- */
-
-#include "pngpriv.h"
-
-#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
-
-png_uint_32 PNGAPI
-png_get_valid(png_const_structrp png_ptr, png_const_inforp info_ptr,
- png_uint_32 flag)
-{
- if (png_ptr != NULL && info_ptr != NULL)
- return(info_ptr->valid & flag);
-
- return(0);
-}
-
-size_t PNGAPI
-png_get_rowbytes(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- if (png_ptr != NULL && info_ptr != NULL)
- return(info_ptr->rowbytes);
-
- return(0);
-}
-
-#ifdef PNG_INFO_IMAGE_SUPPORTED
-png_bytepp PNGAPI
-png_get_rows(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- if (png_ptr != NULL && info_ptr != NULL)
- return(info_ptr->row_pointers);
-
- return(0);
-}
-#endif
-
-#ifdef PNG_EASY_ACCESS_SUPPORTED
-/* Easy access to info, added in libpng-0.99 */
-png_uint_32 PNGAPI
-png_get_image_width(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- if (png_ptr != NULL && info_ptr != NULL)
- return info_ptr->width;
-
- return (0);
-}
-
-png_uint_32 PNGAPI
-png_get_image_height(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- if (png_ptr != NULL && info_ptr != NULL)
- return info_ptr->height;
-
- return (0);
-}
-
-png_byte PNGAPI
-png_get_bit_depth(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- if (png_ptr != NULL && info_ptr != NULL)
- return info_ptr->bit_depth;
-
- return (0);
-}
-
-png_byte PNGAPI
-png_get_color_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- if (png_ptr != NULL && info_ptr != NULL)
- return info_ptr->color_type;
-
- return (0);
-}
-
-png_byte PNGAPI
-png_get_filter_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- if (png_ptr != NULL && info_ptr != NULL)
- return info_ptr->filter_type;
-
- return (0);
-}
-
-png_byte PNGAPI
-png_get_interlace_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- if (png_ptr != NULL && info_ptr != NULL)
- return info_ptr->interlace_type;
-
- return (0);
-}
-
-png_byte PNGAPI
-png_get_compression_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- if (png_ptr != NULL && info_ptr != NULL)
- return info_ptr->compression_type;
-
- return (0);
-}
-
-png_uint_32 PNGAPI
-png_get_x_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp
- info_ptr)
-{
-#ifdef PNG_pHYs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_pHYs) != 0)
- {
- png_debug1(1, "in %s retrieval function",
- "png_get_x_pixels_per_meter");
-
- if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER)
- return (info_ptr->x_pixels_per_unit);
- }
-#else
- PNG_UNUSED(png_ptr)
- PNG_UNUSED(info_ptr)
-#endif
-
- return (0);
-}
-
-png_uint_32 PNGAPI
-png_get_y_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp
- info_ptr)
-{
-#ifdef PNG_pHYs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_pHYs) != 0)
- {
- png_debug1(1, "in %s retrieval function",
- "png_get_y_pixels_per_meter");
-
- if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER)
- return (info_ptr->y_pixels_per_unit);
- }
-#else
- PNG_UNUSED(png_ptr)
- PNG_UNUSED(info_ptr)
-#endif
-
- return (0);
-}
-
-png_uint_32 PNGAPI
-png_get_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
-#ifdef PNG_pHYs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_pHYs) != 0)
- {
- png_debug1(1, "in %s retrieval function", "png_get_pixels_per_meter");
-
- if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER &&
- info_ptr->x_pixels_per_unit == info_ptr->y_pixels_per_unit)
- return (info_ptr->x_pixels_per_unit);
- }
-#else
- PNG_UNUSED(png_ptr)
- PNG_UNUSED(info_ptr)
-#endif
-
- return (0);
-}
-
-#ifdef PNG_FLOATING_POINT_SUPPORTED
-float PNGAPI
-png_get_pixel_aspect_ratio(png_const_structrp png_ptr, png_const_inforp
- info_ptr)
-{
-#ifdef PNG_READ_pHYs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_pHYs) != 0)
- {
- png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio");
-
- if (info_ptr->x_pixels_per_unit != 0)
- return ((float)((float)info_ptr->y_pixels_per_unit
- /(float)info_ptr->x_pixels_per_unit));
- }
-#else
- PNG_UNUSED(png_ptr)
- PNG_UNUSED(info_ptr)
-#endif
-
- return ((float)0.0);
-}
-#endif
-
-#ifdef PNG_FIXED_POINT_SUPPORTED
-png_fixed_point PNGAPI
-png_get_pixel_aspect_ratio_fixed(png_const_structrp png_ptr,
- png_const_inforp info_ptr)
-{
-#ifdef PNG_READ_pHYs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_pHYs) != 0 &&
- info_ptr->x_pixels_per_unit > 0 && info_ptr->y_pixels_per_unit > 0 &&
- info_ptr->x_pixels_per_unit <= PNG_UINT_31_MAX &&
- info_ptr->y_pixels_per_unit <= PNG_UINT_31_MAX)
- {
- png_fixed_point res;
-
- png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio_fixed");
-
- /* The following casts work because a PNG 4 byte integer only has a valid
- * range of 0..2^31-1; otherwise the cast might overflow.
- */
- if (png_muldiv(&res, (png_int_32)info_ptr->y_pixels_per_unit, PNG_FP_1,
- (png_int_32)info_ptr->x_pixels_per_unit) != 0)
- return res;
- }
-#else
- PNG_UNUSED(png_ptr)
- PNG_UNUSED(info_ptr)
-#endif
-
- return 0;
-}
-#endif
-
-png_int_32 PNGAPI
-png_get_x_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
-#ifdef PNG_oFFs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_oFFs) != 0)
- {
- png_debug1(1, "in %s retrieval function", "png_get_x_offset_microns");
-
- if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER)
- return (info_ptr->x_offset);
- }
-#else
- PNG_UNUSED(png_ptr)
- PNG_UNUSED(info_ptr)
-#endif
-
- return (0);
-}
-
-png_int_32 PNGAPI
-png_get_y_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
-#ifdef PNG_oFFs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_oFFs) != 0)
- {
- png_debug1(1, "in %s retrieval function", "png_get_y_offset_microns");
-
- if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER)
- return (info_ptr->y_offset);
- }
-#else
- PNG_UNUSED(png_ptr)
- PNG_UNUSED(info_ptr)
-#endif
-
- return (0);
-}
-
-png_int_32 PNGAPI
-png_get_x_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
-#ifdef PNG_oFFs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_oFFs) != 0)
- {
- png_debug1(1, "in %s retrieval function", "png_get_x_offset_pixels");
-
- if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL)
- return (info_ptr->x_offset);
- }
-#else
- PNG_UNUSED(png_ptr)
- PNG_UNUSED(info_ptr)
-#endif
-
- return (0);
-}
-
-png_int_32 PNGAPI
-png_get_y_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
-#ifdef PNG_oFFs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_oFFs) != 0)
- {
- png_debug1(1, "in %s retrieval function", "png_get_y_offset_pixels");
-
- if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL)
- return (info_ptr->y_offset);
- }
-#else
- PNG_UNUSED(png_ptr)
- PNG_UNUSED(info_ptr)
-#endif
-
- return (0);
-}
-
-#ifdef PNG_INCH_CONVERSIONS_SUPPORTED
-static png_uint_32
-ppi_from_ppm(png_uint_32 ppm)
-{
-#if 0
- /* The conversion is *(2.54/100), in binary (32 digits):
- * .00000110100000001001110101001001
- */
- png_uint_32 t1001, t1101;
- ppm >>= 1; /* .1 */
- t1001 = ppm + (ppm >> 3); /* .1001 */
- t1101 = t1001 + (ppm >> 1); /* .1101 */
- ppm >>= 20; /* .000000000000000000001 */
- t1101 += t1101 >> 15; /* .1101000000000001101 */
- t1001 >>= 11; /* .000000000001001 */
- t1001 += t1001 >> 12; /* .000000000001001000000001001 */
- ppm += t1001; /* .000000000001001000001001001 */
- ppm += t1101; /* .110100000001001110101001001 */
- return (ppm + 16) >> 5;/* .00000110100000001001110101001001 */
-#else
- /* The argument is a PNG unsigned integer, so it is not permitted
- * to be bigger than 2^31.
- */
- png_fixed_point result;
- if (ppm <= PNG_UINT_31_MAX && png_muldiv(&result, (png_int_32)ppm, 127,
- 5000) != 0)
- return (png_uint_32)result;
-
- /* Overflow. */
- return 0;
-#endif
-}
-
-png_uint_32 PNGAPI
-png_get_pixels_per_inch(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- return ppi_from_ppm(png_get_pixels_per_meter(png_ptr, info_ptr));
-}
-
-png_uint_32 PNGAPI
-png_get_x_pixels_per_inch(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- return ppi_from_ppm(png_get_x_pixels_per_meter(png_ptr, info_ptr));
-}
-
-png_uint_32 PNGAPI
-png_get_y_pixels_per_inch(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- return ppi_from_ppm(png_get_y_pixels_per_meter(png_ptr, info_ptr));
-}
-
-#ifdef PNG_FIXED_POINT_SUPPORTED
-static png_fixed_point
-png_fixed_inches_from_microns(png_const_structrp png_ptr, png_int_32 microns)
-{
- /* Convert from meters * 1,000,000 to inches * 100,000, meters to
- * inches is simply *(100/2.54), so we want *(10/2.54) == 500/127.
- * Notice that this can overflow - a warning is output and 0 is
- * returned.
- */
- return png_muldiv_warn(png_ptr, microns, 500, 127);
-}
-
-png_fixed_point PNGAPI
-png_get_x_offset_inches_fixed(png_const_structrp png_ptr,
- png_const_inforp info_ptr)
-{
- return png_fixed_inches_from_microns(png_ptr,
- png_get_x_offset_microns(png_ptr, info_ptr));
-}
-#endif
-
-#ifdef PNG_FIXED_POINT_SUPPORTED
-png_fixed_point PNGAPI
-png_get_y_offset_inches_fixed(png_const_structrp png_ptr,
- png_const_inforp info_ptr)
-{
- return png_fixed_inches_from_microns(png_ptr,
- png_get_y_offset_microns(png_ptr, info_ptr));
-}
-#endif
-
-#ifdef PNG_FLOATING_POINT_SUPPORTED
-float PNGAPI
-png_get_x_offset_inches(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- /* To avoid the overflow do the conversion directly in floating
- * point.
- */
- return (float)(png_get_x_offset_microns(png_ptr, info_ptr) * .00003937);
-}
-#endif
-
-#ifdef PNG_FLOATING_POINT_SUPPORTED
-float PNGAPI
-png_get_y_offset_inches(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- /* To avoid the overflow do the conversion directly in floating
- * point.
- */
- return (float)(png_get_y_offset_microns(png_ptr, info_ptr) * .00003937);
-}
-#endif
-
-#ifdef PNG_pHYs_SUPPORTED
-png_uint_32 PNGAPI
-png_get_pHYs_dpi(png_const_structrp png_ptr, png_const_inforp info_ptr,
- png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)
-{
- png_uint_32 retval = 0;
-
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_pHYs) != 0)
- {
- png_debug1(1, "in %s retrieval function", "pHYs");
-
- if (res_x != NULL)
- {
- *res_x = info_ptr->x_pixels_per_unit;
- retval |= PNG_INFO_pHYs;
- }
-
- if (res_y != NULL)
- {
- *res_y = info_ptr->y_pixels_per_unit;
- retval |= PNG_INFO_pHYs;
- }
-
- if (unit_type != NULL)
- {
- *unit_type = (int)info_ptr->phys_unit_type;
- retval |= PNG_INFO_pHYs;
-
- if (*unit_type == 1)
- {
- if (res_x != NULL) *res_x = (png_uint_32)(*res_x * .0254 + .50);
- if (res_y != NULL) *res_y = (png_uint_32)(*res_y * .0254 + .50);
- }
- }
- }
-
- return (retval);
-}
-#endif /* pHYs */
-#endif /* INCH_CONVERSIONS */
-
-/* png_get_channels really belongs in here, too, but it's been around longer */
-
-#endif /* EASY_ACCESS */
-
-
-png_byte PNGAPI
-png_get_channels(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- if (png_ptr != NULL && info_ptr != NULL)
- return(info_ptr->channels);
-
- return (0);
-}
-
-#ifdef PNG_READ_SUPPORTED
-png_const_bytep PNGAPI
-png_get_signature(png_const_structrp png_ptr, png_const_inforp info_ptr)
-{
- if (png_ptr != NULL && info_ptr != NULL)
- return(info_ptr->signature);
-
- return (NULL);
-}
-#endif
-
-#ifdef PNG_bKGD_SUPPORTED
-png_uint_32 PNGAPI
-png_get_bKGD(png_const_structrp png_ptr, png_inforp info_ptr,
- png_color_16p *background)
-{
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_bKGD) != 0 &&
- background != NULL)
- {
- png_debug1(1, "in %s retrieval function", "bKGD");
-
- *background = &(info_ptr->background);
- return (PNG_INFO_bKGD);
- }
-
- return (0);
-}
-#endif
-
-#ifdef PNG_cHRM_SUPPORTED
-/* The XYZ APIs were added in 1.5.5 to take advantage of the code added at the
- * same time to correct the rgb grayscale coefficient defaults obtained from the
- * cHRM chunk in 1.5.4
- */
-# ifdef PNG_FLOATING_POINT_SUPPORTED
-png_uint_32 PNGAPI
-png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr,
- double *white_x, double *white_y, double *red_x, double *red_y,
- double *green_x, double *green_y, double *blue_x, double *blue_y)
-{
- /* Quiet API change: this code used to only return the end points if a cHRM
- * chunk was present, but the end points can also come from iCCP or sRGB
- * chunks, so in 1.6.0 the png_get_ APIs return the end points regardless and
- * the png_set_ APIs merely check that set end points are mutually
- * consistent.
- */
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
- {
- png_debug1(1, "in %s retrieval function", "cHRM");
-
- if (white_x != NULL)
- *white_x = png_float(png_ptr,
- info_ptr->colorspace.end_points_xy.whitex, "cHRM white X");
- if (white_y != NULL)
- *white_y = png_float(png_ptr,
- info_ptr->colorspace.end_points_xy.whitey, "cHRM white Y");
- if (red_x != NULL)
- *red_x = png_float(png_ptr, info_ptr->colorspace.end_points_xy.redx,
- "cHRM red X");
- if (red_y != NULL)
- *red_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.redy,
- "cHRM red Y");
- if (green_x != NULL)
- *green_x = png_float(png_ptr,
- info_ptr->colorspace.end_points_xy.greenx, "cHRM green X");
- if (green_y != NULL)
- *green_y = png_float(png_ptr,
- info_ptr->colorspace.end_points_xy.greeny, "cHRM green Y");
- if (blue_x != NULL)
- *blue_x = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluex,
- "cHRM blue X");
- if (blue_y != NULL)
- *blue_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluey,
- "cHRM blue Y");
- return (PNG_INFO_cHRM);
- }
-
- return (0);
-}
-
-png_uint_32 PNGAPI
-png_get_cHRM_XYZ(png_const_structrp png_ptr, png_const_inforp info_ptr,
- double *red_X, double *red_Y, double *red_Z, double *green_X,
- double *green_Y, double *green_Z, double *blue_X, double *blue_Y,
- double *blue_Z)
-{
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
- {
- png_debug1(1, "in %s retrieval function", "cHRM_XYZ(float)");
-
- if (red_X != NULL)
- *red_X = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_X,
- "cHRM red X");
- if (red_Y != NULL)
- *red_Y = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_Y,
- "cHRM red Y");
- if (red_Z != NULL)
- *red_Z = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_Z,
- "cHRM red Z");
- if (green_X != NULL)
- *green_X = png_float(png_ptr,
- info_ptr->colorspace.end_points_XYZ.green_X, "cHRM green X");
- if (green_Y != NULL)
- *green_Y = png_float(png_ptr,
- info_ptr->colorspace.end_points_XYZ.green_Y, "cHRM green Y");
- if (green_Z != NULL)
- *green_Z = png_float(png_ptr,
- info_ptr->colorspace.end_points_XYZ.green_Z, "cHRM green Z");
- if (blue_X != NULL)
- *blue_X = png_float(png_ptr,
- info_ptr->colorspace.end_points_XYZ.blue_X, "cHRM blue X");
- if (blue_Y != NULL)
- *blue_Y = png_float(png_ptr,
- info_ptr->colorspace.end_points_XYZ.blue_Y, "cHRM blue Y");
- if (blue_Z != NULL)
- *blue_Z = png_float(png_ptr,
- info_ptr->colorspace.end_points_XYZ.blue_Z, "cHRM blue Z");
- return (PNG_INFO_cHRM);
- }
-
- return (0);
-}
-# endif
-
-# ifdef PNG_FIXED_POINT_SUPPORTED
-png_uint_32 PNGAPI
-png_get_cHRM_XYZ_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
- png_fixed_point *int_red_X, png_fixed_point *int_red_Y,
- png_fixed_point *int_red_Z, png_fixed_point *int_green_X,
- png_fixed_point *int_green_Y, png_fixed_point *int_green_Z,
- png_fixed_point *int_blue_X, png_fixed_point *int_blue_Y,
- png_fixed_point *int_blue_Z)
-{
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
- {
- png_debug1(1, "in %s retrieval function", "cHRM_XYZ");
-
- if (int_red_X != NULL)
- *int_red_X = info_ptr->colorspace.end_points_XYZ.red_X;
- if (int_red_Y != NULL)
- *int_red_Y = info_ptr->colorspace.end_points_XYZ.red_Y;
- if (int_red_Z != NULL)
- *int_red_Z = info_ptr->colorspace.end_points_XYZ.red_Z;
- if (int_green_X != NULL)
- *int_green_X = info_ptr->colorspace.end_points_XYZ.green_X;
- if (int_green_Y != NULL)
- *int_green_Y = info_ptr->colorspace.end_points_XYZ.green_Y;
- if (int_green_Z != NULL)
- *int_green_Z = info_ptr->colorspace.end_points_XYZ.green_Z;
- if (int_blue_X != NULL)
- *int_blue_X = info_ptr->colorspace.end_points_XYZ.blue_X;
- if (int_blue_Y != NULL)
- *int_blue_Y = info_ptr->colorspace.end_points_XYZ.blue_Y;
- if (int_blue_Z != NULL)
- *int_blue_Z = info_ptr->colorspace.end_points_XYZ.blue_Z;
- return (PNG_INFO_cHRM);
- }
-
- return (0);
-}
-
-png_uint_32 PNGAPI
-png_get_cHRM_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
- png_fixed_point *white_x, png_fixed_point *white_y, png_fixed_point *red_x,
- png_fixed_point *red_y, png_fixed_point *green_x, png_fixed_point *green_y,
- png_fixed_point *blue_x, png_fixed_point *blue_y)
-{
- png_debug1(1, "in %s retrieval function", "cHRM");
-
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
- {
- if (white_x != NULL)
- *white_x = info_ptr->colorspace.end_points_xy.whitex;
- if (white_y != NULL)
- *white_y = info_ptr->colorspace.end_points_xy.whitey;
- if (red_x != NULL)
- *red_x = info_ptr->colorspace.end_points_xy.redx;
- if (red_y != NULL)
- *red_y = info_ptr->colorspace.end_points_xy.redy;
- if (green_x != NULL)
- *green_x = info_ptr->colorspace.end_points_xy.greenx;
- if (green_y != NULL)
- *green_y = info_ptr->colorspace.end_points_xy.greeny;
- if (blue_x != NULL)
- *blue_x = info_ptr->colorspace.end_points_xy.bluex;
- if (blue_y != NULL)
- *blue_y = info_ptr->colorspace.end_points_xy.bluey;
- return (PNG_INFO_cHRM);
- }
-
- return (0);
-}
-# endif
-#endif
-
-#ifdef PNG_gAMA_SUPPORTED
-# ifdef PNG_FIXED_POINT_SUPPORTED
-png_uint_32 PNGAPI
-png_get_gAMA_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
- png_fixed_point *file_gamma)
-{
- png_debug1(1, "in %s retrieval function", "gAMA");
-
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) != 0 &&
- file_gamma != NULL)
- {
- *file_gamma = info_ptr->colorspace.gamma;
- return (PNG_INFO_gAMA);
- }
-
- return (0);
-}
-# endif
-
-# ifdef PNG_FLOATING_POINT_SUPPORTED
-png_uint_32 PNGAPI
-png_get_gAMA(png_const_structrp png_ptr, png_const_inforp info_ptr,
- double *file_gamma)
-{
- png_debug1(1, "in %s retrieval function", "gAMA(float)");
-
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) != 0 &&
- file_gamma != NULL)
- {
- *file_gamma = png_float(png_ptr, info_ptr->colorspace.gamma,
- "png_get_gAMA");
- return (PNG_INFO_gAMA);
- }
-
- return (0);
-}
-# endif
-#endif
-
-#ifdef PNG_sRGB_SUPPORTED
-png_uint_32 PNGAPI
-png_get_sRGB(png_const_structrp png_ptr, png_const_inforp info_ptr,
- int *file_srgb_intent)
-{
- png_debug1(1, "in %s retrieval function", "sRGB");
-
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_sRGB) != 0 && file_srgb_intent != NULL)
- {
- *file_srgb_intent = info_ptr->colorspace.rendering_intent;
- return (PNG_INFO_sRGB);
- }
-
- return (0);
-}
-#endif
-
-#ifdef PNG_iCCP_SUPPORTED
-png_uint_32 PNGAPI
-png_get_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
- png_charpp name, int *compression_type,
- png_bytepp profile, png_uint_32 *proflen)
-{
- png_debug1(1, "in %s retrieval function", "iCCP");
-
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_iCCP) != 0 &&
- name != NULL && profile != NULL && proflen != NULL)
- {
- *name = info_ptr->iccp_name;
- *profile = info_ptr->iccp_profile;
- *proflen = png_get_uint_32(info_ptr->iccp_profile);
- /* This is somewhat irrelevant since the profile data returned has
- * actually been uncompressed.
- */
- if (compression_type != NULL)
- *compression_type = PNG_COMPRESSION_TYPE_BASE;
- return (PNG_INFO_iCCP);
- }
-
- return (0);
-
-}
-#endif
-
-#ifdef PNG_sPLT_SUPPORTED
-int PNGAPI
-png_get_sPLT(png_const_structrp png_ptr, png_inforp info_ptr,
- png_sPLT_tpp spalettes)
-{
- if (png_ptr != NULL && info_ptr != NULL && spalettes != NULL)
- {
- *spalettes = info_ptr->splt_palettes;
- return info_ptr->splt_palettes_num;
- }
-
- return (0);
-}
-#endif
-
-#ifdef PNG_eXIf_SUPPORTED
-png_uint_32 PNGAPI
-png_get_eXIf(png_const_structrp png_ptr, png_inforp info_ptr,
- png_bytep *exif)
-{
- png_warning(png_ptr, "png_get_eXIf does not work; use png_get_eXIf_1");
- PNG_UNUSED(info_ptr)
- PNG_UNUSED(exif)
- return 0;
-}
-
-png_uint_32 PNGAPI
-png_get_eXIf_1(png_const_structrp png_ptr, png_const_inforp info_ptr,
- png_uint_32 *num_exif, png_bytep *exif)
-{
- png_debug1(1, "in %s retrieval function", "eXIf");
-
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_eXIf) != 0 && exif != NULL)
- {
- *num_exif = info_ptr->num_exif;
- *exif = info_ptr->exif;
- return (PNG_INFO_eXIf);
- }
-
- return (0);
-}
-#endif
-
-#ifdef PNG_hIST_SUPPORTED
-png_uint_32 PNGAPI
-png_get_hIST(png_const_structrp png_ptr, png_inforp info_ptr,
- png_uint_16p *hist)
-{
- png_debug1(1, "in %s retrieval function", "hIST");
-
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_hIST) != 0 && hist != NULL)
- {
- *hist = info_ptr->hist;
- return (PNG_INFO_hIST);
- }
-
- return (0);
-}
-#endif
-
-png_uint_32 PNGAPI
-png_get_IHDR(png_const_structrp png_ptr, png_const_inforp info_ptr,
- png_uint_32 *width, png_uint_32 *height, int *bit_depth,
- int *color_type, int *interlace_type, int *compression_type,
- int *filter_type)
-{
- png_debug1(1, "in %s retrieval function", "IHDR");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return (0);
-
- if (width != NULL)
- *width = info_ptr->width;
-
- if (height != NULL)
- *height = info_ptr->height;
-
- if (bit_depth != NULL)
- *bit_depth = info_ptr->bit_depth;
-
- if (color_type != NULL)
- *color_type = info_ptr->color_type;
-
- if (compression_type != NULL)
- *compression_type = info_ptr->compression_type;
-
- if (filter_type != NULL)
- *filter_type = info_ptr->filter_type;
-
- if (interlace_type != NULL)
- *interlace_type = info_ptr->interlace_type;
-
- /* This is redundant if we can be sure that the info_ptr values were all
- * assigned in png_set_IHDR(). We do the check anyhow in case an
- * application has ignored our advice not to mess with the members
- * of info_ptr directly.
- */
- png_check_IHDR(png_ptr, info_ptr->width, info_ptr->height,
- info_ptr->bit_depth, info_ptr->color_type, info_ptr->interlace_type,
- info_ptr->compression_type, info_ptr->filter_type);
-
- return (1);
-}
-
-#ifdef PNG_oFFs_SUPPORTED
-png_uint_32 PNGAPI
-png_get_oFFs(png_const_structrp png_ptr, png_const_inforp info_ptr,
- png_int_32 *offset_x, png_int_32 *offset_y, int *unit_type)
-{
- png_debug1(1, "in %s retrieval function", "oFFs");
-
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_oFFs) != 0 &&
- offset_x != NULL && offset_y != NULL && unit_type != NULL)
- {
- *offset_x = info_ptr->x_offset;
- *offset_y = info_ptr->y_offset;
- *unit_type = (int)info_ptr->offset_unit_type;
- return (PNG_INFO_oFFs);
- }
-
- return (0);
-}
-#endif
-
-#ifdef PNG_pCAL_SUPPORTED
-png_uint_32 PNGAPI
-png_get_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
- png_charp *purpose, png_int_32 *X0, png_int_32 *X1, int *type, int *nparams,
- png_charp *units, png_charpp *params)
-{
- png_debug1(1, "in %s retrieval function", "pCAL");
-
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_pCAL) != 0 &&
- purpose != NULL && X0 != NULL && X1 != NULL && type != NULL &&
- nparams != NULL && units != NULL && params != NULL)
- {
- *purpose = info_ptr->pcal_purpose;
- *X0 = info_ptr->pcal_X0;
- *X1 = info_ptr->pcal_X1;
- *type = (int)info_ptr->pcal_type;
- *nparams = (int)info_ptr->pcal_nparams;
- *units = info_ptr->pcal_units;
- *params = info_ptr->pcal_params;
- return (PNG_INFO_pCAL);
- }
-
- return (0);
-}
-#endif
-
-#ifdef PNG_sCAL_SUPPORTED
-# ifdef PNG_FIXED_POINT_SUPPORTED
-# if defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) || \
- defined(PNG_FLOATING_POINT_SUPPORTED)
-png_uint_32 PNGAPI
-png_get_sCAL_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
- int *unit, png_fixed_point *width, png_fixed_point *height)
-{
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_sCAL) != 0)
- {
- *unit = info_ptr->scal_unit;
- /*TODO: make this work without FP support; the API is currently eliminated
- * if neither floating point APIs nor internal floating point arithmetic
- * are enabled.
- */
- *width = png_fixed(png_ptr, atof(info_ptr->scal_s_width), "sCAL width");
- *height = png_fixed(png_ptr, atof(info_ptr->scal_s_height),
- "sCAL height");
- return (PNG_INFO_sCAL);
- }
-
- return(0);
-}
-# endif /* FLOATING_ARITHMETIC */
-# endif /* FIXED_POINT */
-# ifdef PNG_FLOATING_POINT_SUPPORTED
-png_uint_32 PNGAPI
-png_get_sCAL(png_const_structrp png_ptr, png_const_inforp info_ptr,
- int *unit, double *width, double *height)
-{
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_sCAL) != 0)
- {
- *unit = info_ptr->scal_unit;
- *width = atof(info_ptr->scal_s_width);
- *height = atof(info_ptr->scal_s_height);
- return (PNG_INFO_sCAL);
- }
-
- return(0);
-}
-# endif /* FLOATING POINT */
-png_uint_32 PNGAPI
-png_get_sCAL_s(png_const_structrp png_ptr, png_const_inforp info_ptr,
- int *unit, png_charpp width, png_charpp height)
-{
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_sCAL) != 0)
- {
- *unit = info_ptr->scal_unit;
- *width = info_ptr->scal_s_width;
- *height = info_ptr->scal_s_height;
- return (PNG_INFO_sCAL);
- }
-
- return(0);
-}
-#endif /* sCAL */
-
-#ifdef PNG_pHYs_SUPPORTED
-png_uint_32 PNGAPI
-png_get_pHYs(png_const_structrp png_ptr, png_const_inforp info_ptr,
- png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)
-{
- png_uint_32 retval = 0;
-
- png_debug1(1, "in %s retrieval function", "pHYs");
-
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_pHYs) != 0)
- {
- if (res_x != NULL)
- {
- *res_x = info_ptr->x_pixels_per_unit;
- retval |= PNG_INFO_pHYs;
- }
-
- if (res_y != NULL)
- {
- *res_y = info_ptr->y_pixels_per_unit;
- retval |= PNG_INFO_pHYs;
- }
-
- if (unit_type != NULL)
- {
- *unit_type = (int)info_ptr->phys_unit_type;
- retval |= PNG_INFO_pHYs;
- }
- }
-
- return (retval);
-}
-#endif /* pHYs */
-
-png_uint_32 PNGAPI
-png_get_PLTE(png_const_structrp png_ptr, png_inforp info_ptr,
- png_colorp *palette, int *num_palette)
-{
- png_debug1(1, "in %s retrieval function", "PLTE");
-
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_PLTE) != 0 && palette != NULL)
- {
- *palette = info_ptr->palette;
- *num_palette = info_ptr->num_palette;
- png_debug1(3, "num_palette = %d", *num_palette);
- return (PNG_INFO_PLTE);
- }
-
- return (0);
-}
-
-#ifdef PNG_sBIT_SUPPORTED
-png_uint_32 PNGAPI
-png_get_sBIT(png_const_structrp png_ptr, png_inforp info_ptr,
- png_color_8p *sig_bit)
-{
- png_debug1(1, "in %s retrieval function", "sBIT");
-
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_sBIT) != 0 && sig_bit != NULL)
- {
- *sig_bit = &(info_ptr->sig_bit);
- return (PNG_INFO_sBIT);
- }
-
- return (0);
-}
-#endif
-
-#ifdef PNG_TEXT_SUPPORTED
-int PNGAPI
-png_get_text(png_const_structrp png_ptr, png_inforp info_ptr,
- png_textp *text_ptr, int *num_text)
-{
- if (png_ptr != NULL && info_ptr != NULL && info_ptr->num_text > 0)
- {
- png_debug1(1, "in 0x%lx retrieval function",
- (unsigned long)png_ptr->chunk_name);
-
- if (text_ptr != NULL)
- *text_ptr = info_ptr->text;
-
- if (num_text != NULL)
- *num_text = info_ptr->num_text;
-
- return info_ptr->num_text;
- }
-
- if (num_text != NULL)
- *num_text = 0;
-
- return(0);
-}
-#endif
-
-#ifdef PNG_tIME_SUPPORTED
-png_uint_32 PNGAPI
-png_get_tIME(png_const_structrp png_ptr, png_inforp info_ptr,
- png_timep *mod_time)
-{
- png_debug1(1, "in %s retrieval function", "tIME");
-
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_tIME) != 0 && mod_time != NULL)
- {
- *mod_time = &(info_ptr->mod_time);
- return (PNG_INFO_tIME);
- }
-
- return (0);
-}
-#endif
-
-#ifdef PNG_tRNS_SUPPORTED
-png_uint_32 PNGAPI
-png_get_tRNS(png_const_structrp png_ptr, png_inforp info_ptr,
- png_bytep *trans_alpha, int *num_trans, png_color_16p *trans_color)
-{
- png_uint_32 retval = 0;
- if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_tRNS) != 0)
- {
- png_debug1(1, "in %s retrieval function", "tRNS");
-
- if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- {
- if (trans_alpha != NULL)
- {
- *trans_alpha = info_ptr->trans_alpha;
- retval |= PNG_INFO_tRNS;
- }
-
- if (trans_color != NULL)
- *trans_color = &(info_ptr->trans_color);
- }
-
- else /* if (info_ptr->color_type != PNG_COLOR_TYPE_PALETTE) */
- {
- if (trans_color != NULL)
- {
- *trans_color = &(info_ptr->trans_color);
- retval |= PNG_INFO_tRNS;
- }
-
- if (trans_alpha != NULL)
- *trans_alpha = NULL;
- }
-
- if (num_trans != NULL)
- {
- *num_trans = info_ptr->num_trans;
- retval |= PNG_INFO_tRNS;
- }
- }
-
- return (retval);
-}
-#endif
-
-#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
-int PNGAPI
-png_get_unknown_chunks(png_const_structrp png_ptr, png_inforp info_ptr,
- png_unknown_chunkpp unknowns)
-{
- if (png_ptr != NULL && info_ptr != NULL && unknowns != NULL)
- {
- *unknowns = info_ptr->unknown_chunks;
- return info_ptr->unknown_chunks_num;
- }
-
- return (0);
-}
-#endif
-
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
-png_byte PNGAPI
-png_get_rgb_to_gray_status (png_const_structrp png_ptr)
-{
- return (png_byte)(png_ptr ? png_ptr->rgb_to_gray_status : 0);
-}
-#endif
-
-#ifdef PNG_USER_CHUNKS_SUPPORTED
-png_voidp PNGAPI
-png_get_user_chunk_ptr(png_const_structrp png_ptr)
-{
- return (png_ptr ? png_ptr->user_chunk_ptr : NULL);
-}
-#endif
-
-size_t PNGAPI
-png_get_compression_buffer_size(png_const_structrp png_ptr)
-{
- if (png_ptr == NULL)
- return 0;
-
-#ifdef PNG_WRITE_SUPPORTED
- if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0)
-#endif
- {
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
- return png_ptr->IDAT_read_size;
-#else
- return PNG_IDAT_READ_SIZE;
-#endif
- }
-
-#ifdef PNG_WRITE_SUPPORTED
- else
- return png_ptr->zbuffer_size;
-#endif
-}
-
-#ifdef PNG_SET_USER_LIMITS_SUPPORTED
-/* These functions were added to libpng 1.2.6 and were enabled
- * by default in libpng-1.4.0 */
-png_uint_32 PNGAPI
-png_get_user_width_max (png_const_structrp png_ptr)
-{
- return (png_ptr ? png_ptr->user_width_max : 0);
-}
-
-png_uint_32 PNGAPI
-png_get_user_height_max (png_const_structrp png_ptr)
-{
- return (png_ptr ? png_ptr->user_height_max : 0);
-}
-
-/* This function was added to libpng 1.4.0 */
-png_uint_32 PNGAPI
-png_get_chunk_cache_max (png_const_structrp png_ptr)
-{
- return (png_ptr ? png_ptr->user_chunk_cache_max : 0);
-}
-
-/* This function was added to libpng 1.4.1 */
-png_alloc_size_t PNGAPI
-png_get_chunk_malloc_max (png_const_structrp png_ptr)
-{
- return (png_ptr ? png_ptr->user_chunk_malloc_max : 0);
-}
-#endif /* SET_USER_LIMITS */
-
-/* These functions were added to libpng 1.4.0 */
-#ifdef PNG_IO_STATE_SUPPORTED
-png_uint_32 PNGAPI
-png_get_io_state (png_const_structrp png_ptr)
-{
- return png_ptr->io_state;
-}
-
-png_uint_32 PNGAPI
-png_get_io_chunk_type (png_const_structrp png_ptr)
-{
- return png_ptr->chunk_name;
-}
-#endif /* IO_STATE */
-
-#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
-# ifdef PNG_GET_PALETTE_MAX_SUPPORTED
-int PNGAPI
-png_get_palette_max(png_const_structp png_ptr, png_const_infop info_ptr)
-{
- if (png_ptr != NULL && info_ptr != NULL)
- return png_ptr->num_palette_max;
-
- return (-1);
-}
-# endif
-#endif
-
-#endif /* READ || WRITE */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngget.lo b/3rdparty/libpng/libpng-1.6.37/pngget.lo
deleted file mode 100644
index 8263fb7..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngget.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# pngget.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/pngget.o'
-
-# Name of the non-PIC object
-non_pic_object='pngget.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/pngget.o b/3rdparty/libpng/libpng-1.6.37/pngget.o
deleted file mode 100644
index 9191be4..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngget.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngimage b/3rdparty/libpng/libpng-1.6.37/pngimage
deleted file mode 100755
index ac9e8f1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngimage
+++ /dev/null
@@ -1,210 +0,0 @@
-#! /bin/bash
-
-# pngimage - temporary wrapper script for .libs/pngimage
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# The pngimage program cannot be directly executed until all the libtool
-# libraries that it depends on are installed.
-#
-# This wrapper script should never be moved out of the build directory.
-# If it is, it will not operate correctly.
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
-
-# Be Bourne compatible
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
-else
- case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-relink_command=""
-
-# This environment variable determines our operation mode.
-if test "$libtool_install_magic" = "%%%MAGIC variable%%%"; then
- # install mode needs the following variables:
- generated_by_libtool_version='2.4.6'
- notinst_deplibs=' libpng16.la'
-else
- # When we are sourced in execute mode, $file and $ECHO are already set.
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- file="$0"
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
- eval 'cat <<_LTECHO_EOF
-$1
-_LTECHO_EOF'
-}
- ECHO="printf %s\\n"
- fi
-
-# Very basic option parsing. These options are (a) specific to
-# the libtool wrapper, (b) are identical between the wrapper
-# /script/ and the wrapper /executable/ that is used only on
-# windows platforms, and (c) all begin with the string --lt-
-# (application programs are unlikely to have options that match
-# this pattern).
-#
-# There are only two supported options: --lt-debug and
-# --lt-dump-script. There is, deliberately, no --lt-help.
-#
-# The first argument to this parsing function should be the
-# script's ./libtool value, followed by no.
-lt_option_debug=
-func_parse_lt_options ()
-{
- lt_script_arg0=$0
- shift
- for lt_opt
- do
- case "$lt_opt" in
- --lt-debug) lt_option_debug=1 ;;
- --lt-dump-script)
- lt_dump_D=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%/[^/]*$%%'`
- test "X$lt_dump_D" = "X$lt_script_arg0" && lt_dump_D=.
- lt_dump_F=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%^.*/%%'`
- cat "$lt_dump_D/$lt_dump_F"
- exit 0
- ;;
- --lt-*)
- $ECHO "Unrecognized --lt- option: '$lt_opt'" 1>&2
- exit 1
- ;;
- esac
- done
-
- # Print the debug banner immediately:
- if test -n "$lt_option_debug"; then
- echo "pngimage:pngimage:$LINENO: libtool wrapper (GNU libtool) 2.4.6" 1>&2
- fi
-}
-
-# Used when --lt-debug. Prints its arguments to stdout
-# (redirection is the responsibility of the caller)
-func_lt_dump_args ()
-{
- lt_dump_args_N=1;
- for lt_arg
- do
- $ECHO "pngimage:pngimage:$LINENO: newargv[$lt_dump_args_N]: $lt_arg"
- lt_dump_args_N=`expr $lt_dump_args_N + 1`
- done
-}
-
-# Core function for launching the target application
-func_exec_program_core ()
-{
-
- if test -n "$lt_option_debug"; then
- $ECHO "pngimage:pngimage:$LINENO: newargv[0]: $progdir/$program" 1>&2
- func_lt_dump_args ${1+"$@"} 1>&2
- fi
- exec "$progdir/$program" ${1+"$@"}
-
- $ECHO "$0: cannot exec $program $*" 1>&2
- exit 1
-}
-
-# A function to encapsulate launching the target application
-# Strips options in the --lt-* namespace from $@ and
-# launches target application with the remaining arguments.
-func_exec_program ()
-{
- case " $* " in
- *\ --lt-*)
- for lt_wr_arg
- do
- case $lt_wr_arg in
- --lt-*) ;;
- *) set x "$@" "$lt_wr_arg"; shift;;
- esac
- shift
- done ;;
- esac
- func_exec_program_core ${1+"$@"}
-}
-
- # Parse options
- func_parse_lt_options "$0" ${1+"$@"}
-
- # Find the directory that this script lives in.
- thisdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
- test "x$thisdir" = "x$file" && thisdir=.
-
- # Follow symbolic links until we get to the real thisdir.
- file=`ls -ld "$file" | /bin/sed -n 's/.*-> //p'`
- while test -n "$file"; do
- destdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
-
- # If there was a directory component, then change thisdir.
- if test "x$destdir" != "x$file"; then
- case "$destdir" in
- [\\/]* | [A-Za-z]:[\\/]*) thisdir="$destdir" ;;
- *) thisdir="$thisdir/$destdir" ;;
- esac
- fi
-
- file=`$ECHO "$file" | /bin/sed 's%^.*/%%'`
- file=`ls -ld "$thisdir/$file" | /bin/sed -n 's/.*-> //p'`
- done
-
- # Usually 'no', except on cygwin/mingw when embedded into
- # the cwrapper.
- WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=no
- if test "$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR" = "yes"; then
- # special case for '.'
- if test "$thisdir" = "."; then
- thisdir=`pwd`
- fi
- # remove .libs from thisdir
- case "$thisdir" in
- *[\\/].libs ) thisdir=`$ECHO "$thisdir" | /bin/sed 's%[\\/][^\\/]*$%%'` ;;
- .libs ) thisdir=. ;;
- esac
- fi
-
- # Try to get the absolute directory name.
- absdir=`cd "$thisdir" && pwd`
- test -n "$absdir" && thisdir="$absdir"
-
- program='pngimage'
- progdir="$thisdir/.libs"
-
-
- if test -f "$progdir/$program"; then
- # Add our own library path to LD_LIBRARY_PATH
- LD_LIBRARY_PATH="/home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/.libs:$LD_LIBRARY_PATH"
-
- # Some systems cannot cope with colon-terminated LD_LIBRARY_PATH
- # The second colon is a workaround for a bug in BeOS R4 sed
- LD_LIBRARY_PATH=`$ECHO "$LD_LIBRARY_PATH" | /bin/sed 's/::*$//'`
-
- export LD_LIBRARY_PATH
-
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- # Run the actual program with our arguments.
- func_exec_program ${1+"$@"}
- fi
- else
- # The program doesn't exist.
- $ECHO "$0: error: '$progdir/$program' does not exist" 1>&2
- $ECHO "This script is just a wrapper for $program." 1>&2
- $ECHO "See the libtool documentation for more information." 1>&2
- exit 1
- fi
-fi
diff --git a/3rdparty/libpng/libpng-1.6.37/pnginfo.h b/3rdparty/libpng/libpng-1.6.37/pnginfo.h
deleted file mode 100644
index 1f98ded..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pnginfo.h
+++ /dev/null
@@ -1,267 +0,0 @@
-
-/* pnginfo.h - header file for PNG reference library
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2013,2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
- /* png_info is a structure that holds the information in a PNG file so
- * that the application can find out the characteristics of the image.
- * If you are reading the file, this structure will tell you what is
- * in the PNG file. If you are writing the file, fill in the information
- * you want to put into the PNG file, using png_set_*() functions, then
- * call png_write_info().
- *
- * The names chosen should be very close to the PNG specification, so
- * consult that document for information about the meaning of each field.
- *
- * With libpng < 0.95, it was only possible to directly set and read the
- * the values in the png_info_struct, which meant that the contents and
- * order of the values had to remain fixed. With libpng 0.95 and later,
- * however, there are now functions that abstract the contents of
- * png_info_struct from the application, so this makes it easier to use
- * libpng with dynamic libraries, and even makes it possible to use
- * libraries that don't have all of the libpng ancillary chunk-handing
- * functionality. In libpng-1.5.0 this was moved into a separate private
- * file that is not visible to applications.
- *
- * The following members may have allocated storage attached that should be
- * cleaned up before the structure is discarded: palette, trans, text,
- * pcal_purpose, pcal_units, pcal_params, hist, iccp_name, iccp_profile,
- * splt_palettes, scal_unit, row_pointers, and unknowns. By default, these
- * are automatically freed when the info structure is deallocated, if they were
- * allocated internally by libpng. This behavior can be changed by means
- * of the png_data_freer() function.
- *
- * More allocation details: all the chunk-reading functions that
- * change these members go through the corresponding png_set_*
- * functions. A function to clear these members is available: see
- * png_free_data(). The png_set_* functions do not depend on being
- * able to point info structure members to any of the storage they are
- * passed (they make their own copies), EXCEPT that the png_set_text
- * functions use the same storage passed to them in the text_ptr or
- * itxt_ptr structure argument, and the png_set_rows and png_set_unknowns
- * functions do not make their own copies.
- */
-#ifndef PNGINFO_H
-#define PNGINFO_H
-
-struct png_info_def
-{
- /* The following are necessary for every PNG file */
- png_uint_32 width; /* width of image in pixels (from IHDR) */
- png_uint_32 height; /* height of image in pixels (from IHDR) */
- png_uint_32 valid; /* valid chunk data (see PNG_INFO_ below) */
- size_t rowbytes; /* bytes needed to hold an untransformed row */
- png_colorp palette; /* array of color values (valid & PNG_INFO_PLTE) */
- png_uint_16 num_palette; /* number of color entries in "palette" (PLTE) */
- png_uint_16 num_trans; /* number of transparent palette color (tRNS) */
- png_byte bit_depth; /* 1, 2, 4, 8, or 16 bits/channel (from IHDR) */
- png_byte color_type; /* see PNG_COLOR_TYPE_ below (from IHDR) */
- /* The following three should have been named *_method not *_type */
- png_byte compression_type; /* must be PNG_COMPRESSION_TYPE_BASE (IHDR) */
- png_byte filter_type; /* must be PNG_FILTER_TYPE_BASE (from IHDR) */
- png_byte interlace_type; /* One of PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */
-
- /* The following are set by png_set_IHDR, called from the application on
- * write, but the are never actually used by the write code.
- */
- png_byte channels; /* number of data channels per pixel (1, 2, 3, 4) */
- png_byte pixel_depth; /* number of bits per pixel */
- png_byte spare_byte; /* to align the data, and for future use */
-
-#ifdef PNG_READ_SUPPORTED
- /* This is never set during write */
- png_byte signature[8]; /* magic bytes read by libpng from start of file */
-#endif
-
- /* The rest of the data is optional. If you are reading, check the
- * valid field to see if the information in these are valid. If you
- * are writing, set the valid field to those chunks you want written,
- * and initialize the appropriate fields below.
- */
-
-#if defined(PNG_COLORSPACE_SUPPORTED) || defined(PNG_GAMMA_SUPPORTED)
- /* png_colorspace only contains 'flags' if neither GAMMA or COLORSPACE are
- * defined. When COLORSPACE is switched on all the colorspace-defining
- * chunks should be enabled, when GAMMA is switched on all the gamma-defining
- * chunks should be enabled. If this is not done it becomes possible to read
- * inconsistent PNG files and assign a probably incorrect interpretation to
- * the information. (In other words, by carefully choosing which chunks to
- * recognize the system configuration can select an interpretation for PNG
- * files containing ambiguous data and this will result in inconsistent
- * behavior between different libpng builds!)
- */
- png_colorspace colorspace;
-#endif
-
-#ifdef PNG_iCCP_SUPPORTED
- /* iCCP chunk data. */
- png_charp iccp_name; /* profile name */
- png_bytep iccp_profile; /* International Color Consortium profile data */
- png_uint_32 iccp_proflen; /* ICC profile data length */
-#endif
-
-#ifdef PNG_TEXT_SUPPORTED
- /* The tEXt, and zTXt chunks contain human-readable textual data in
- * uncompressed, compressed, and optionally compressed forms, respectively.
- * The data in "text" is an array of pointers to uncompressed,
- * null-terminated C strings. Each chunk has a keyword that describes the
- * textual data contained in that chunk. Keywords are not required to be
- * unique, and the text string may be empty. Any number of text chunks may
- * be in an image.
- */
- int num_text; /* number of comments read or comments to write */
- int max_text; /* current size of text array */
- png_textp text; /* array of comments read or comments to write */
-#endif /* TEXT */
-
-#ifdef PNG_tIME_SUPPORTED
- /* The tIME chunk holds the last time the displayed image data was
- * modified. See the png_time struct for the contents of this struct.
- */
- png_time mod_time;
-#endif
-
-#ifdef PNG_sBIT_SUPPORTED
- /* The sBIT chunk specifies the number of significant high-order bits
- * in the pixel data. Values are in the range [1, bit_depth], and are
- * only specified for the channels in the pixel data. The contents of
- * the low-order bits is not specified. Data is valid if
- * (valid & PNG_INFO_sBIT) is non-zero.
- */
- png_color_8 sig_bit; /* significant bits in color channels */
-#endif
-
-#if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_EXPAND_SUPPORTED) || \
-defined(PNG_READ_BACKGROUND_SUPPORTED)
- /* The tRNS chunk supplies transparency data for paletted images and
- * other image types that don't need a full alpha channel. There are
- * "num_trans" transparency values for a paletted image, stored in the
- * same order as the palette colors, starting from index 0. Values
- * for the data are in the range [0, 255], ranging from fully transparent
- * to fully opaque, respectively. For non-paletted images, there is a
- * single color specified that should be treated as fully transparent.
- * Data is valid if (valid & PNG_INFO_tRNS) is non-zero.
- */
- png_bytep trans_alpha; /* alpha values for paletted image */
- png_color_16 trans_color; /* transparent color for non-palette image */
-#endif
-
-#if defined(PNG_bKGD_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
- /* The bKGD chunk gives the suggested image background color if the
- * display program does not have its own background color and the image
- * is needs to composited onto a background before display. The colors
- * in "background" are normally in the same color space/depth as the
- * pixel data. Data is valid if (valid & PNG_INFO_bKGD) is non-zero.
- */
- png_color_16 background;
-#endif
-
-#ifdef PNG_oFFs_SUPPORTED
- /* The oFFs chunk gives the offset in "offset_unit_type" units rightwards
- * and downwards from the top-left corner of the display, page, or other
- * application-specific co-ordinate space. See the PNG_OFFSET_ defines
- * below for the unit types. Valid if (valid & PNG_INFO_oFFs) non-zero.
- */
- png_int_32 x_offset; /* x offset on page */
- png_int_32 y_offset; /* y offset on page */
- png_byte offset_unit_type; /* offset units type */
-#endif
-
-#ifdef PNG_pHYs_SUPPORTED
- /* The pHYs chunk gives the physical pixel density of the image for
- * display or printing in "phys_unit_type" units (see PNG_RESOLUTION_
- * defines below). Data is valid if (valid & PNG_INFO_pHYs) is non-zero.
- */
- png_uint_32 x_pixels_per_unit; /* horizontal pixel density */
- png_uint_32 y_pixels_per_unit; /* vertical pixel density */
- png_byte phys_unit_type; /* resolution type (see PNG_RESOLUTION_ below) */
-#endif
-
-#ifdef PNG_eXIf_SUPPORTED
- int num_exif; /* Added at libpng-1.6.31 */
- png_bytep exif;
-# ifdef PNG_READ_eXIf_SUPPORTED
- png_bytep eXIf_buf; /* Added at libpng-1.6.32 */
-# endif
-#endif
-
-#ifdef PNG_hIST_SUPPORTED
- /* The hIST chunk contains the relative frequency or importance of the
- * various palette entries, so that a viewer can intelligently select a
- * reduced-color palette, if required. Data is an array of "num_palette"
- * values in the range [0,65535]. Data valid if (valid & PNG_INFO_hIST)
- * is non-zero.
- */
- png_uint_16p hist;
-#endif
-
-#ifdef PNG_pCAL_SUPPORTED
- /* The pCAL chunk describes a transformation between the stored pixel
- * values and original physical data values used to create the image.
- * The integer range [0, 2^bit_depth - 1] maps to the floating-point
- * range given by [pcal_X0, pcal_X1], and are further transformed by a
- * (possibly non-linear) transformation function given by "pcal_type"
- * and "pcal_params" into "pcal_units". Please see the PNG_EQUATION_
- * defines below, and the PNG-Group's PNG extensions document for a
- * complete description of the transformations and how they should be
- * implemented, and for a description of the ASCII parameter strings.
- * Data values are valid if (valid & PNG_INFO_pCAL) non-zero.
- */
- png_charp pcal_purpose; /* pCAL chunk description string */
- png_int_32 pcal_X0; /* minimum value */
- png_int_32 pcal_X1; /* maximum value */
- png_charp pcal_units; /* Latin-1 string giving physical units */
- png_charpp pcal_params; /* ASCII strings containing parameter values */
- png_byte pcal_type; /* equation type (see PNG_EQUATION_ below) */
- png_byte pcal_nparams; /* number of parameters given in pcal_params */
-#endif
-
-/* New members added in libpng-1.0.6 */
- png_uint_32 free_me; /* flags items libpng is responsible for freeing */
-
-#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
- /* Storage for unknown chunks that the library doesn't recognize. */
- png_unknown_chunkp unknown_chunks;
-
- /* The type of this field is limited by the type of
- * png_struct::user_chunk_cache_max, else overflow can occur.
- */
- int unknown_chunks_num;
-#endif
-
-#ifdef PNG_sPLT_SUPPORTED
- /* Data on sPLT chunks (there may be more than one). */
- png_sPLT_tp splt_palettes;
- int splt_palettes_num; /* Match type returned by png_get API */
-#endif
-
-#ifdef PNG_sCAL_SUPPORTED
- /* The sCAL chunk describes the actual physical dimensions of the
- * subject matter of the graphic. The chunk contains a unit specification
- * a byte value, and two ASCII strings representing floating-point
- * values. The values are width and height corresponding to one pixel
- * in the image. Data values are valid if (valid & PNG_INFO_sCAL) is
- * non-zero.
- */
- png_byte scal_unit; /* unit of physical scale */
- png_charp scal_s_width; /* string containing height */
- png_charp scal_s_height; /* string containing width */
-#endif
-
-#ifdef PNG_INFO_IMAGE_SUPPORTED
- /* Memory has been allocated if (valid & PNG_ALLOCATED_INFO_ROWS)
- non-zero */
- /* Data valid if (valid & PNG_INFO_IDAT) non-zero */
- png_bytepp row_pointers; /* the image bits */
-#endif
-
-};
-#endif /* PNGINFO_H */
diff --git a/3rdparty/libpng/libpng-1.6.37/pnglibconf.c b/3rdparty/libpng/libpng-1.6.37/pnglibconf.c
deleted file mode 100644
index ff45abe..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pnglibconf.c
+++ /dev/null
@@ -1,6839 +0,0 @@
-/*- pnglibconf.dfn intermediate file
- * generated from scripts/pnglibconf.dfa
- */
- PNG_DFN "/* pnglibconf.h - library build configuration */"
- PNG_DFN ""
- PNG_DFN "/* libpng version 1.6.37 */"
- PNG_DFN ""
- PNG_DFN "/* Copyright (c) 2018-2019 Cosmin Truta */"
- PNG_DFN "/* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson */"
- PNG_DFN ""
- PNG_DFN "/* This code is released under the libpng license. */"
- PNG_DFN "/* For conditions of distribution and use, see the disclaimer */"
- PNG_DFN "/* and license in png.h */"
- PNG_DFN ""
- PNG_DFN "/* pnglibconf.h */"
- PNG_DFN "/* Machine generated file: DO NOT EDIT */"
- PNG_DFN "/* Derived from: scripts/pnglibconf.dfa */"
- PNG_DFN "#ifndef PNGLCONF_H"
- PNG_DFN "#define PNGLCONF_H"
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-#if defined(HAVE_CONFIG_H) && !defined(PNG_NO_CONFIG_H)
-# include "config.h"
-#endif
-#ifdef PNG_USER_CONFIG
-# include "pngusr.h"
-#endif
-#ifdef __WATCOMC__
-# ifndef PNG_API_RULE
-# define PNG_API_RULE 2 /* Use Watcom calling conventions */
-# endif
-#endif
-# include <zlib.h>
-#ifdef PNG_SETJMP_NOT_SUPPORTED
-# define PNG_NO_SETJMP
-#endif
-#ifdef PNG_READ_TRANSFORMS_NOT_SUPPORTED
-# define PNG_NO_READ_TRANSFORMS
-#endif
-#ifdef PNG_NO_READ_COMPOSITED_NODIV
-# define PNG_NO_READ_COMPOSITE_NODIV
-#endif
-#ifdef PNG_INCH_CONVERSIONS
-# define PNG_INCH_CONVERSIONS_SUPPORTED
-#endif
-#ifdef PNG_WRITE_TRANSFORMS_NOT_SUPPORTED
-# define PNG_NO_WRITE_TRANSFORMS
-#endif
-#ifdef PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED
-# define PNG_NO_READ_ANCILLARY_CHUNKS
-#endif
-#ifdef PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED
-# define PNG_NO_WRITE_ANCILLARY_CHUNKS
-#endif
-#ifdef _WIN32_WCE
-# define PNG_NO_CONVERT_tIME
-#endif
-
-/* OPTIONS */
- PNG_DFN "/* options */"
-PNG_DFN_START_SORT 2
-
-/* option: UNKNOWN_CHUNKS enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_UNKNOWN_CHUNKS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_UNKNOWN_CHUNKS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_UNKNOWN_CHUNKS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_UNKNOWN_CHUNKS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_UNKNOWN_CHUNKS_SUPPORTED*/"
-#endif
-
-/* option: INFO_IMAGE enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_INFO_IMAGE_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_INFO_IMAGE
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_INFO_IMAGE_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_INFO_IMAGE_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_INFO_IMAGE_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_INFO_IMAGE_SUPPORTED*/"
-#endif
-
-/* option: SET_UNKNOWN_CHUNKS enabled
- * requires: UNKNOWN_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
-# undef PNG_on /*!UNKNOWN_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_SET_UNKNOWN_CHUNKS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_SET_UNKNOWN_CHUNKS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_SET_UNKNOWN_CHUNKS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED*/"
-#endif
-
-/* option: GET_PALETTE_MAX enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_GET_PALETTE_MAX_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_GET_PALETTE_MAX
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_GET_PALETTE_MAX_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_GET_PALETTE_MAX_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_GET_PALETTE_MAX_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_GET_PALETTE_MAX_SUPPORTED*/"
-#endif
-
-/* option: POINTER_INDEXING enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_POINTER_INDEXING_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_POINTER_INDEXING
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_POINTER_INDEXING_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_POINTER_INDEXING_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_POINTER_INDEXING_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_POINTER_INDEXING_SUPPORTED*/"
-#endif
-
-/* option: WARNINGS enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WARNINGS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WARNINGS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WARNINGS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WARNINGS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WARNINGS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WARNINGS_SUPPORTED*/"
-#endif
-
-/* option: FLOATING_ARITHMETIC enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_FLOATING_ARITHMETIC_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_FLOATING_ARITHMETIC
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_FLOATING_ARITHMETIC_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_FLOATING_ARITHMETIC_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_FLOATING_ARITHMETIC_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_FLOATING_ARITHMETIC_SUPPORTED*/"
-#endif
-
-/* option: POWERPC_VSX_CHECK disabled
- * requires:
- * if:
- * enabled-by:
- * sets: POWERPC_VSX_OPT */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_POWERPC_VSX_CHECK_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_POWERPC_VSX_CHECK_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_POWERPC_VSX_CHECK_SUPPORTED"
-# ifdef PNG_set_POWERPC_VSX_OPT
- PNG_DFN "ERROR: POWERPC_VSX_CHECK sets POWERPC_VSX_OPT: duplicate setting"
- PNG_DFN "ERROR: previous value: " PNG_set_POWERPC_VSX_OPT
-# else
-# define PNG_set_POWERPC_VSX_OPT 1
-# endif
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_POWERPC_VSX_CHECK_SUPPORTED*/"
-#endif
-
-/* option: WRITE enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_SUPPORTED*/"
-#endif
-
-/* option: WRITE_INTERLACING enabled
- * requires: WRITE
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_SUPPORTED
-# undef PNG_on /*!WRITE*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_INTERLACING_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_INTERLACING
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_INTERLACING_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_INTERLACING_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_INTERLACING_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_INTERLACING_SUPPORTED*/"
-#endif
-
-/* option: WRITE_16BIT enabled
- * requires: WRITE
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_SUPPORTED
-# undef PNG_on /*!WRITE*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_16BIT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_16BIT
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_16BIT_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_16BIT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_16BIT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_16BIT_SUPPORTED*/"
-#endif
-
-/* option: EASY_ACCESS enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_EASY_ACCESS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_EASY_ACCESS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_EASY_ACCESS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_EASY_ACCESS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_EASY_ACCESS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_EASY_ACCESS_SUPPORTED*/"
-#endif
-
-/* option: WRITE_CUSTOMIZE_COMPRESSION enabled
- * requires: WRITE
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_SUPPORTED
-# undef PNG_on /*!WRITE*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_CUSTOMIZE_COMPRESSION
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED*/"
-#endif
-
-/* option: CHECK_FOR_INVALID_INDEX enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_CHECK_FOR_INVALID_INDEX
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_CHECK_FOR_INVALID_INDEX_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED*/"
-#endif
-
-/* option: WRITE_WEIGHTED_FILTER enabled
- * requires: WRITE
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_SUPPORTED
-# undef PNG_on /*!WRITE*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_WEIGHTED_FILTER
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_WEIGHTED_FILTER_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED*/"
-#endif
-
-/* option: WRITE_UNKNOWN_CHUNKS enabled
- * requires: WRITE UNKNOWN_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_SUPPORTED
-# undef PNG_on /*!WRITE*/
-#endif
-#ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
-# undef PNG_on /*!UNKNOWN_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_UNKNOWN_CHUNKS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_UNKNOWN_CHUNKS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED*/"
-#endif
-
-/* option: POWERPC_VSX_API disabled
- * requires:
- * if:
- * enabled-by:
- * sets: POWERPC_VSX_OPT */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_POWERPC_VSX_API_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_POWERPC_VSX_API_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_POWERPC_VSX_API_SUPPORTED"
-# ifdef PNG_set_POWERPC_VSX_OPT
- PNG_DFN "ERROR: POWERPC_VSX_API sets POWERPC_VSX_OPT: duplicate setting"
- PNG_DFN "ERROR: previous value: " PNG_set_POWERPC_VSX_OPT
-# else
-# define PNG_set_POWERPC_VSX_OPT 1
-# endif
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_POWERPC_VSX_API_SUPPORTED*/"
-#endif
-
-/* option: BUILD_GRAYSCALE_PALETTE enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_BUILD_GRAYSCALE_PALETTE
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_BUILD_GRAYSCALE_PALETTE_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED*/"
-#endif
-
-/* option: FIXED_POINT enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_FIXED_POINT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_FIXED_POINT
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_FIXED_POINT_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_FIXED_POINT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_FIXED_POINT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_FIXED_POINT_SUPPORTED*/"
-#endif
-
-/* option: ERROR_NUMBERS disabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_ERROR_NUMBERS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_ERROR_NUMBERS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_ERROR_NUMBERS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_ERROR_NUMBERS_SUPPORTED*/"
-#endif
-
-/* option: ERROR_TEXT enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_ERROR_TEXT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_ERROR_TEXT
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_ERROR_TEXT_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_ERROR_TEXT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_ERROR_TEXT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_ERROR_TEXT_SUPPORTED*/"
-#endif
-
-/* option: READ enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_SUPPORTED*/"
-#endif
-
-/* option: BENIGN_ERRORS enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_BENIGN_ERRORS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_BENIGN_ERRORS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_BENIGN_ERRORS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_BENIGN_ERRORS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_BENIGN_ERRORS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_BENIGN_ERRORS_SUPPORTED*/"
-#endif
-
-/* option: SETJMP enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_SETJMP_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_SETJMP
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_SETJMP_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_SETJMP_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_SETJMP_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_SETJMP_SUPPORTED*/"
-#endif
-
-/* option: TIME_RFC1123 enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_TIME_RFC1123_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_TIME_RFC1123
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_TIME_RFC1123_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_TIME_RFC1123_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_TIME_RFC1123_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_TIME_RFC1123_SUPPORTED*/"
-#endif
-
-/* option: BENIGN_READ_ERRORS enabled
- * requires: BENIGN_ERRORS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_BENIGN_ERRORS_SUPPORTED
-# undef PNG_on /*!BENIGN_ERRORS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_BENIGN_READ_ERRORS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_BENIGN_READ_ERRORS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_BENIGN_READ_ERRORS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_BENIGN_READ_ERRORS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_BENIGN_READ_ERRORS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_BENIGN_READ_ERRORS_SUPPORTED*/"
-#endif
-
-/* option: WRITE_FLUSH enabled
- * requires: WRITE
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_SUPPORTED
-# undef PNG_on /*!WRITE*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_FLUSH_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_FLUSH
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_FLUSH_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_FLUSH_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_FLUSH_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_FLUSH_SUPPORTED*/"
-#endif
-
-/* option: MNG_FEATURES enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_MNG_FEATURES_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_MNG_FEATURES
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_MNG_FEATURES_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_MNG_FEATURES_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_MNG_FEATURES_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_MNG_FEATURES_SUPPORTED*/"
-#endif
-
-/* option: ALIGNED_MEMORY enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_ALIGNED_MEMORY_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_ALIGNED_MEMORY
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_ALIGNED_MEMORY_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_ALIGNED_MEMORY_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_ALIGNED_MEMORY_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_ALIGNED_MEMORY_SUPPORTED*/"
-#endif
-
-/* option: FLOATING_POINT enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_FLOATING_POINT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_FLOATING_POINT
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_FLOATING_POINT_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_FLOATING_POINT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_FLOATING_POINT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_FLOATING_POINT_SUPPORTED*/"
-#endif
-
-/* option: WRITE_OPTIMIZE_CMF enabled
- * requires: WRITE
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_SUPPORTED
-# undef PNG_on /*!WRITE*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_OPTIMIZE_CMF
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_OPTIMIZE_CMF_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_OPTIMIZE_CMF_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED*/"
-#endif
-
-/* option: INCH_CONVERSIONS enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_INCH_CONVERSIONS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_INCH_CONVERSIONS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_INCH_CONVERSIONS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_INCH_CONVERSIONS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_INCH_CONVERSIONS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_INCH_CONVERSIONS_SUPPORTED*/"
-#endif
-
-/* option: STDIO enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_STDIO_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_STDIO
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_STDIO_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_STDIO_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_STDIO_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_STDIO_SUPPORTED*/"
-#endif
-
-/* option: USER_MEM enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_USER_MEM_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_USER_MEM
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_USER_MEM_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_USER_MEM_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_USER_MEM_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_USER_MEM_SUPPORTED*/"
-#endif
-
-/* option: IO_STATE enabled
- * requires:
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_IO_STATE_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_IO_STATE
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_IO_STATE_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_IO_STATE_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_IO_STATE_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_IO_STATE_SUPPORTED*/"
-#endif
-
-/* option: ARM_NEON_CHECK disabled
- * requires: ALIGNED_MEMORY
- * if:
- * enabled-by:
- * sets: ARM_NEON_OPT */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_ALIGNED_MEMORY_SUPPORTED
-# undef PNG_on /*!ALIGNED_MEMORY*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_ARM_NEON_CHECK_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_ARM_NEON_CHECK_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_ARM_NEON_CHECK_SUPPORTED"
-# ifdef PNG_set_ARM_NEON_OPT
- PNG_DFN "ERROR: ARM_NEON_CHECK sets ARM_NEON_OPT: duplicate setting"
- PNG_DFN "ERROR: previous value: " PNG_set_ARM_NEON_OPT
-# else
-# define PNG_set_ARM_NEON_OPT 1
-# endif
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_ARM_NEON_CHECK_SUPPORTED*/"
-#endif
-
-/* option: READ_ANCILLARY_CHUNKS enabled
- * requires: READ
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_SUPPORTED
-# undef PNG_on /*!READ*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_ANCILLARY_CHUNKS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED*/"
-#endif
-
-/* option: WRITE_INT_FUNCTIONS disabled
- * requires:
- * if:
- * enabled-by: WRITE
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by WRITE */
-#ifdef PNG_WRITE_SUPPORTED
-# undef PNG_not_enabled /*WRITE*/
-#endif
-# ifndef PNG_WRITE_INT_FUNCTIONS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_INT_FUNCTIONS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_INT_FUNCTIONS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_INT_FUNCTIONS_SUPPORTED*/"
-#endif
-
-/* option: READ_eXIf enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_eXIf_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_eXIf
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_eXIf_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_eXIf_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_eXIf_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_eXIf_SUPPORTED*/"
-#endif
-
-/* option: WRITE_ANCILLARY_CHUNKS enabled
- * requires: WRITE
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_SUPPORTED
-# undef PNG_on /*!WRITE*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_ANCILLARY_CHUNKS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED*/"
-#endif
-
-/* option: WRITE_FILTER enabled
- * requires: WRITE
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_SUPPORTED
-# undef PNG_on /*!WRITE*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_FILTER_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_FILTER
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_FILTER_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_FILTER_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_FILTER_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_FILTER_SUPPORTED*/"
-#endif
-
-/* option: WRITE_zTXt enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_zTXt_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_zTXt
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_zTXt_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_zTXt_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_zTXt_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_zTXt_SUPPORTED*/"
-#endif
-
-/* option: WRITE_iCCP enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_iCCP_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_iCCP
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_iCCP_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_iCCP_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_iCCP_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_iCCP_SUPPORTED*/"
-#endif
-
-/* option: READ_TRANSFORMS enabled
- * requires: READ
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_SUPPORTED
-# undef PNG_on /*!READ*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_TRANSFORMS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_TRANSFORMS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_TRANSFORMS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_TRANSFORMS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_TRANSFORMS_SUPPORTED*/"
-#endif
-
-/* option: READ_bKGD enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_bKGD_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_bKGD
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_bKGD_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_bKGD_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_bKGD_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_bKGD_SUPPORTED*/"
-#endif
-
-/* option: READ_sCAL enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_sCAL_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_sCAL
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_sCAL_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_sCAL_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_sCAL_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_sCAL_SUPPORTED*/"
-#endif
-
-/* option: WRITE_hIST enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_hIST_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_hIST
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_hIST_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_hIST_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_hIST_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_hIST_SUPPORTED*/"
-#endif
-
-/* option: HANDLE_AS_UNKNOWN enabled
- * requires: SET_UNKNOWN_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
-# undef PNG_on /*!SET_UNKNOWN_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_HANDLE_AS_UNKNOWN
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_HANDLE_AS_UNKNOWN_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_HANDLE_AS_UNKNOWN_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_HANDLE_AS_UNKNOWN_SUPPORTED*/"
-#endif
-
-/* option: READ_OPT_PLTE enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_OPT_PLTE_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_OPT_PLTE
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_OPT_PLTE_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_OPT_PLTE_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_OPT_PLTE_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_OPT_PLTE_SUPPORTED*/"
-#endif
-
-/* option: WRITE_gAMA enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_gAMA_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_gAMA
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_gAMA_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_gAMA_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_gAMA_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_gAMA_SUPPORTED*/"
-#endif
-
-/* option: READ_GRAY_TO_RGB enabled
- * requires: READ_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_GRAY_TO_RGB_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_GRAY_TO_RGB
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_GRAY_TO_RGB_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_GRAY_TO_RGB_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_GRAY_TO_RGB_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_GRAY_TO_RGB_SUPPORTED*/"
-#endif
-
-/* option: WRITE_pCAL enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_pCAL_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_pCAL
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_pCAL_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_pCAL_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_pCAL_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_pCAL_SUPPORTED*/"
-#endif
-
-/* option: READ_INVERT_ALPHA enabled
- * requires: READ_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_INVERT_ALPHA_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_INVERT_ALPHA
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_INVERT_ALPHA_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_INVERT_ALPHA_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_INVERT_ALPHA_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_INVERT_ALPHA_SUPPORTED*/"
-#endif
-
-/* option: WRITE_TRANSFORMS enabled
- * requires: WRITE
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_SUPPORTED
-# undef PNG_on /*!WRITE*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_TRANSFORMS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_TRANSFORMS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_TRANSFORMS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_TRANSFORMS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_TRANSFORMS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_TRANSFORMS_SUPPORTED*/"
-#endif
-
-/* option: WRITE_CHECK_FOR_INVALID_INDEX enabled
- * requires: WRITE CHECK_FOR_INVALID_INDEX
- * if:
- * enabled-by: CHECK_FOR_INVALID_INDEX
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_SUPPORTED
-# undef PNG_on /*!WRITE*/
-#endif
-#ifndef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
-# undef PNG_on /*!CHECK_FOR_INVALID_INDEX*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by CHECK_FOR_INVALID_INDEX */
-#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
-# undef PNG_not_enabled /*CHECK_FOR_INVALID_INDEX*/
-#endif
-# ifndef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_CHECK_FOR_INVALID_INDEX
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED*/"
-#endif
-
-/* option: READ_sBIT enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_sBIT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_sBIT
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_sBIT_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_sBIT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_sBIT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_sBIT_SUPPORTED*/"
-#endif
-
-/* option: WRITE_CUSTOMIZE_ZTXT_COMPRESSION enabled
- * requires: WRITE
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_SUPPORTED
-# undef PNG_on /*!WRITE*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_CUSTOMIZE_ZTXT_COMPRESSION
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED*/"
-#endif
-
-/* option: READ_PACK enabled
- * requires: READ_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_PACK_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_PACK
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_PACK_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_PACK_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_PACK_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_PACK_SUPPORTED*/"
-#endif
-
-/* option: WRITE_iTXt enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_iTXt_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_iTXt
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_iTXt_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_iTXt_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_iTXt_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_iTXt_SUPPORTED*/"
-#endif
-
-/* option: WRITE_SWAP enabled
- * requires: WRITE_TRANSFORMS WRITE_16BIT
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!WRITE_TRANSFORMS*/
-#endif
-#ifndef PNG_WRITE_16BIT_SUPPORTED
-# undef PNG_on /*!WRITE_16BIT*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_SWAP_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_SWAP
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_SWAP_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_SWAP_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_SWAP_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_SWAP_SUPPORTED*/"
-#endif
-
-/* option: READ_cHRM enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_cHRM_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_cHRM
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_cHRM_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_cHRM_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_cHRM_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_cHRM_SUPPORTED*/"
-#endif
-
-/* option: READ_STRIP_16_TO_8 enabled
- * requires: READ_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_STRIP_16_TO_8_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_STRIP_16_TO_8
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_STRIP_16_TO_8_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_STRIP_16_TO_8_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_STRIP_16_TO_8_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_STRIP_16_TO_8_SUPPORTED*/"
-#endif
-
-/* option: WRITE_tIME enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_tIME_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_tIME
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_tIME_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_tIME_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_tIME_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_tIME_SUPPORTED*/"
-#endif
-
-/* option: READ_INTERLACING disabled
- * requires:
- * if:
- * enabled-by: READ
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ */
-#ifdef PNG_READ_SUPPORTED
-# undef PNG_not_enabled /*READ*/
-#endif
-# ifndef PNG_READ_INTERLACING_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_INTERLACING_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_INTERLACING_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_INTERLACING_SUPPORTED*/"
-#endif
-
-/* option: READ_tRNS enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_tRNS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_tRNS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_tRNS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_tRNS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_tRNS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_tRNS_SUPPORTED*/"
-#endif
-
-/* option: WRITE_pHYs enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_pHYs_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_pHYs
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_pHYs_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_pHYs_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_pHYs_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_pHYs_SUPPORTED*/"
-#endif
-
-/* option: WRITE_INVERT enabled
- * requires: WRITE_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!WRITE_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_INVERT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_INVERT
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_INVERT_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_INVERT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_INVERT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_INVERT_SUPPORTED*/"
-#endif
-
-/* option: WRITE_sRGB enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_sRGB_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_sRGB
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_sRGB_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_sRGB_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_sRGB_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_sRGB_SUPPORTED*/"
-#endif
-
-/* option: READ_oFFs enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_oFFs_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_oFFs
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_oFFs_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_oFFs_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_oFFs_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_oFFs_SUPPORTED*/"
-#endif
-
-/* option: WRITE_FILLER enabled
- * requires: WRITE_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!WRITE_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_FILLER_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_FILLER
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_FILLER_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_FILLER_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_FILLER_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_FILLER_SUPPORTED*/"
-#endif
-
-/* option: WRITE_TEXT enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_TEXT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_TEXT
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_TEXT_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_TEXT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_TEXT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_TEXT_SUPPORTED*/"
-#endif
-
-/* option: WRITE_SHIFT enabled
- * requires: WRITE_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!WRITE_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_SHIFT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_SHIFT
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_SHIFT_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_SHIFT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_SHIFT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_SHIFT_SUPPORTED*/"
-#endif
-
-/* option: PROGRESSIVE_READ enabled
- * requires: READ
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_SUPPORTED
-# undef PNG_on /*!READ*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_PROGRESSIVE_READ_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_PROGRESSIVE_READ
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_PROGRESSIVE_READ_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_PROGRESSIVE_READ_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_PROGRESSIVE_READ_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_PROGRESSIVE_READ_SUPPORTED*/"
-#endif
-
-/* option: READ_SHIFT enabled
- * requires: READ_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_SHIFT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_SHIFT
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_SHIFT_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_SHIFT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_SHIFT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_SHIFT_SUPPORTED*/"
-#endif
-
-/* option: CONVERT_tIME enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_CONVERT_tIME_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_CONVERT_tIME
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_CONVERT_tIME_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_CONVERT_tIME_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_CONVERT_tIME_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_CONVERT_tIME_SUPPORTED*/"
-#endif
-
-/* option: READ_USER_TRANSFORM enabled
- * requires: READ_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_USER_TRANSFORM_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_USER_TRANSFORM
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_USER_TRANSFORM_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_USER_TRANSFORM_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_USER_TRANSFORM_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_USER_TRANSFORM_SUPPORTED*/"
-#endif
-
-/* option: READ_INT_FUNCTIONS enabled
- * requires: READ
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_SUPPORTED
-# undef PNG_on /*!READ*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_INT_FUNCTIONS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_INT_FUNCTIONS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_INT_FUNCTIONS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_INT_FUNCTIONS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_INT_FUNCTIONS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_INT_FUNCTIONS_SUPPORTED*/"
-#endif
-
-/* option: READ_USER_CHUNKS enabled
- * requires: READ UNKNOWN_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_SUPPORTED
-# undef PNG_on /*!READ*/
-#endif
-#ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
-# undef PNG_on /*!UNKNOWN_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_USER_CHUNKS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_USER_CHUNKS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_USER_CHUNKS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_USER_CHUNKS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_USER_CHUNKS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_USER_CHUNKS_SUPPORTED*/"
-#endif
-
-/* option: READ_hIST enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_hIST_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_hIST
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_hIST_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_hIST_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_hIST_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_hIST_SUPPORTED*/"
-#endif
-
-/* option: READ_16BIT enabled
- * requires: READ
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_SUPPORTED
-# undef PNG_on /*!READ*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_16BIT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_16BIT
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_16BIT_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_16BIT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_16BIT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_16BIT_SUPPORTED*/"
-#endif
-
-/* option: READ_SWAP_ALPHA enabled
- * requires: READ_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_SWAP_ALPHA_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_SWAP_ALPHA
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_SWAP_ALPHA_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_SWAP_ALPHA_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_SWAP_ALPHA_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_SWAP_ALPHA_SUPPORTED*/"
-#endif
-
-/* option: READ_COMPOSITE_NODIV enabled
- * requires: READ
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_SUPPORTED
-# undef PNG_on /*!READ*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_COMPOSITE_NODIV_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_COMPOSITE_NODIV
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_COMPOSITE_NODIV_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_COMPOSITE_NODIV_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_COMPOSITE_NODIV_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_COMPOSITE_NODIV_SUPPORTED*/"
-#endif
-
-/* option: SEQUENTIAL_READ enabled
- * requires: READ
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_SUPPORTED
-# undef PNG_on /*!READ*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_SEQUENTIAL_READ_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_SEQUENTIAL_READ
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_SEQUENTIAL_READ_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_SEQUENTIAL_READ_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_SEQUENTIAL_READ_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_SEQUENTIAL_READ_SUPPORTED*/"
-#endif
-
-/* option: READ_QUANTIZE enabled
- * requires: READ
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_SUPPORTED
-# undef PNG_on /*!READ*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_QUANTIZE_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_QUANTIZE
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_QUANTIZE_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_QUANTIZE_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_QUANTIZE_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_QUANTIZE_SUPPORTED*/"
-#endif
-
-/* option: READ_zTXt enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_zTXt_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_zTXt
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_zTXt_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_zTXt_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_zTXt_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_zTXt_SUPPORTED*/"
-#endif
-
-/* option: USER_LIMITS enabled
- * requires: READ
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_SUPPORTED
-# undef PNG_on /*!READ*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_USER_LIMITS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_USER_LIMITS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_USER_LIMITS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_USER_LIMITS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_USER_LIMITS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_USER_LIMITS_SUPPORTED*/"
-#endif
-
-/* option: READ_iCCP enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_iCCP_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_iCCP
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_iCCP_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_iCCP_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_iCCP_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_iCCP_SUPPORTED*/"
-#endif
-
-/* option: READ_STRIP_ALPHA enabled
- * requires: READ_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_STRIP_ALPHA_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_STRIP_ALPHA
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_STRIP_ALPHA_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_STRIP_ALPHA_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_STRIP_ALPHA_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_STRIP_ALPHA_SUPPORTED*/"
-#endif
-
-/* option: READ_PACKSWAP enabled
- * requires: READ_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_PACKSWAP_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_PACKSWAP
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_PACKSWAP_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_PACKSWAP_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_PACKSWAP_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_PACKSWAP_SUPPORTED*/"
-#endif
-
-/* option: READ_sRGB enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_sRGB_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_sRGB
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_sRGB_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_sRGB_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_sRGB_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_sRGB_SUPPORTED*/"
-#endif
-
-/* option: READ_CHECK_FOR_INVALID_INDEX enabled
- * requires: READ CHECK_FOR_INVALID_INDEX
- * if:
- * enabled-by: CHECK_FOR_INVALID_INDEX
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_SUPPORTED
-# undef PNG_on /*!READ*/
-#endif
-#ifndef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
-# undef PNG_on /*!CHECK_FOR_INVALID_INDEX*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by CHECK_FOR_INVALID_INDEX */
-#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
-# undef PNG_not_enabled /*CHECK_FOR_INVALID_INDEX*/
-#endif
-# ifndef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_CHECK_FOR_INVALID_INDEX
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED*/"
-#endif
-
-/* option: WRITE_tEXt enabled
- * requires: WRITE_ANCILLARY_CHUNKS WRITE_TEXT
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#ifndef PNG_WRITE_TEXT_SUPPORTED
-# undef PNG_on /*!WRITE_TEXT*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_tEXt_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_tEXt
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_tEXt_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_tEXt_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_tEXt_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_tEXt_SUPPORTED*/"
-#endif
-
-/* option: READ_gAMA enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_gAMA_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_gAMA
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_gAMA_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_gAMA_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_gAMA_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_gAMA_SUPPORTED*/"
-#endif
-
-/* option: READ_pCAL enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_pCAL_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_pCAL
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_pCAL_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_pCAL_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_pCAL_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_pCAL_SUPPORTED*/"
-#endif
-
-/* option: SAVE_UNKNOWN_CHUNKS enabled
- * requires: READ SET_UNKNOWN_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_SUPPORTED
-# undef PNG_on /*!READ*/
-#endif
-#ifndef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
-# undef PNG_on /*!SET_UNKNOWN_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_SAVE_UNKNOWN_CHUNKS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_SAVE_UNKNOWN_CHUNKS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED*/"
-#endif
-
-/* option: READ_EXPAND enabled
- * requires: READ_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_EXPAND_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_EXPAND
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_EXPAND_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_EXPAND_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_EXPAND_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_EXPAND_SUPPORTED*/"
-#endif
-
-/* option: WRITE_sPLT enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_sPLT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_sPLT
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_sPLT_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_sPLT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_sPLT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_sPLT_SUPPORTED*/"
-#endif
-
-/* option: READ_iTXt enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_iTXt_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_iTXt
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_iTXt_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_iTXt_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_iTXt_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_iTXt_SUPPORTED*/"
-#endif
-
-/* option: READ_SWAP enabled
- * requires: READ_TRANSFORMS READ_16BIT
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#ifndef PNG_READ_16BIT_SUPPORTED
-# undef PNG_on /*!READ_16BIT*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_SWAP_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_SWAP
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_SWAP_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_SWAP_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_SWAP_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_SWAP_SUPPORTED*/"
-#endif
-
-/* option: WRITE_eXIf enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_eXIf_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_eXIf
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_eXIf_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_eXIf_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_eXIf_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_eXIf_SUPPORTED*/"
-#endif
-
-/* option: BENIGN_WRITE_ERRORS disabled
- * requires: BENIGN_ERRORS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_BENIGN_ERRORS_SUPPORTED
-# undef PNG_on /*!BENIGN_ERRORS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_BENIGN_WRITE_ERRORS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_BENIGN_WRITE_ERRORS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_BENIGN_WRITE_ERRORS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_BENIGN_WRITE_ERRORS_SUPPORTED*/"
-#endif
-
-/* option: READ_tIME enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_tIME_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_tIME
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_tIME_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_tIME_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_tIME_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_tIME_SUPPORTED*/"
-#endif
-
-/* option: READ_pHYs enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_pHYs_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_pHYs
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_pHYs_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_pHYs_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_pHYs_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_pHYs_SUPPORTED*/"
-#endif
-
-/* option: WRITE_SWAP_ALPHA enabled
- * requires: WRITE_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!WRITE_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_SWAP_ALPHA_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_SWAP_ALPHA
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_SWAP_ALPHA_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_SWAP_ALPHA_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_SWAP_ALPHA_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_SWAP_ALPHA_SUPPORTED*/"
-#endif
-
-/* option: ARM_NEON_API disabled
- * requires: ALIGNED_MEMORY
- * if:
- * enabled-by:
- * sets: ARM_NEON_OPT */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_ALIGNED_MEMORY_SUPPORTED
-# undef PNG_on /*!ALIGNED_MEMORY*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_ARM_NEON_API_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_ARM_NEON_API_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_ARM_NEON_API_SUPPORTED"
-# ifdef PNG_set_ARM_NEON_OPT
- PNG_DFN "ERROR: ARM_NEON_API sets ARM_NEON_OPT: duplicate setting"
- PNG_DFN "ERROR: previous value: " PNG_set_ARM_NEON_OPT
-# else
-# define PNG_set_ARM_NEON_OPT 1
-# endif
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_ARM_NEON_API_SUPPORTED*/"
-#endif
-
-/* option: READ_SCALE_16_TO_8 enabled
- * requires: READ_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_SCALE_16_TO_8_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_SCALE_16_TO_8
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_SCALE_16_TO_8_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_SCALE_16_TO_8_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_SCALE_16_TO_8_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_SCALE_16_TO_8_SUPPORTED*/"
-#endif
-
-/* option: READ_TEXT enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_TEXT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_TEXT
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_TEXT_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_TEXT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_TEXT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_TEXT_SUPPORTED*/"
-#endif
-
-/* option: WRITE_BGR enabled
- * requires: WRITE_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!WRITE_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_BGR_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_BGR
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_BGR_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_BGR_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_BGR_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_BGR_SUPPORTED*/"
-#endif
-
-/* option: USER_CHUNKS disabled
- * requires:
- * if:
- * enabled-by: READ_USER_CHUNKS
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_USER_CHUNKS */
-#ifdef PNG_READ_USER_CHUNKS_SUPPORTED
-# undef PNG_not_enabled /*READ_USER_CHUNKS*/
-#endif
-# ifndef PNG_USER_CHUNKS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_USER_CHUNKS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_USER_CHUNKS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_USER_CHUNKS_SUPPORTED*/"
-#endif
-
-/* option: WRITE_GET_PALETTE_MAX disabled
- * requires: WRITE_CHECK_FOR_INVALID_INDEX
- * if:
- * enabled-by: GET_PALETTE_MAX
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
-# undef PNG_on /*!WRITE_CHECK_FOR_INVALID_INDEX*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by GET_PALETTE_MAX */
-#ifdef PNG_GET_PALETTE_MAX_SUPPORTED
-# undef PNG_not_enabled /*GET_PALETTE_MAX*/
-#endif
-# ifndef PNG_WRITE_GET_PALETTE_MAX_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_GET_PALETTE_MAX_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_GET_PALETTE_MAX_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_GET_PALETTE_MAX_SUPPORTED*/"
-#endif
-
-/* option: CONSOLE_IO enabled
- * requires: STDIO
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_STDIO_SUPPORTED
-# undef PNG_on /*!STDIO*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_CONSOLE_IO_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_CONSOLE_IO
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_CONSOLE_IO_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_CONSOLE_IO_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_CONSOLE_IO_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_CONSOLE_IO_SUPPORTED*/"
-#endif
-
-/* option: SET_OPTION disabled
- * requires:
- * if:
- * enabled-by: ARM_NEON_API POWERPC_VSX_API READ READ_sRGB WRITE_sRGB
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by ARM_NEON_API POWERPC_VSX_API READ READ_sRGB WRITE_sRGB */
-#ifdef PNG_ARM_NEON_API_SUPPORTED
-# undef PNG_not_enabled /*ARM_NEON_API*/
-#endif
-#ifdef PNG_POWERPC_VSX_API_SUPPORTED
-# undef PNG_not_enabled /*POWERPC_VSX_API*/
-#endif
-#ifdef PNG_READ_SUPPORTED
-# undef PNG_not_enabled /*READ*/
-#endif
-#ifdef PNG_READ_sRGB_SUPPORTED
-# undef PNG_not_enabled /*READ_sRGB*/
-#endif
-#ifdef PNG_WRITE_sRGB_SUPPORTED
-# undef PNG_not_enabled /*WRITE_sRGB*/
-#endif
-# ifndef PNG_SET_OPTION_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_SET_OPTION_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_SET_OPTION_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_SET_OPTION_SUPPORTED*/"
-#endif
-
-/* option: WRITE_COMPRESSED_TEXT disabled
- * requires:
- * if:
- * enabled-by: WRITE_iCCP WRITE_iTXt WRITE_zTXt
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by WRITE_iCCP WRITE_iTXt WRITE_zTXt */
-#ifdef PNG_WRITE_iCCP_SUPPORTED
-# undef PNG_not_enabled /*WRITE_iCCP*/
-#endif
-#ifdef PNG_WRITE_iTXt_SUPPORTED
-# undef PNG_not_enabled /*WRITE_iTXt*/
-#endif
-#ifdef PNG_WRITE_zTXt_SUPPORTED
-# undef PNG_not_enabled /*WRITE_zTXt*/
-#endif
-# ifndef PNG_WRITE_COMPRESSED_TEXT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_COMPRESSED_TEXT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_COMPRESSED_TEXT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_COMPRESSED_TEXT_SUPPORTED*/"
-#endif
-
-/* option: READ_UNKNOWN_CHUNKS disabled
- * requires: UNKNOWN_CHUNKS
- * if:
- * enabled-by: SAVE_UNKNOWN_CHUNKS READ_USER_CHUNKS
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
-# undef PNG_on /*!UNKNOWN_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by SAVE_UNKNOWN_CHUNKS READ_USER_CHUNKS */
-#ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
-# undef PNG_not_enabled /*SAVE_UNKNOWN_CHUNKS*/
-#endif
-#ifdef PNG_READ_USER_CHUNKS_SUPPORTED
-# undef PNG_not_enabled /*READ_USER_CHUNKS*/
-#endif
-# ifndef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED*/"
-#endif
-
-/* option: WRITE_PACK enabled
- * requires: WRITE_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!WRITE_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_PACK_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_PACK
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_PACK_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_PACK_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_PACK_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_PACK_SUPPORTED*/"
-#endif
-
-/* option: READ_FILLER enabled
- * requires: READ_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_FILLER_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_FILLER
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_FILLER_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_FILLER_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_FILLER_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_FILLER_SUPPORTED*/"
-#endif
-
-/* option: WRITE_bKGD enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_bKGD_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_bKGD
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_bKGD_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_bKGD_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_bKGD_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_bKGD_SUPPORTED*/"
-#endif
-
-/* option: WRITE_tRNS enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_tRNS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_tRNS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_tRNS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_tRNS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_tRNS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_tRNS_SUPPORTED*/"
-#endif
-
-/* option: READ_sPLT enabled
- * requires: READ_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_sPLT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_sPLT
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_sPLT_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_sPLT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_sPLT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_sPLT_SUPPORTED*/"
-#endif
-
-/* option: WRITE_sCAL enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_sCAL_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_sCAL
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_sCAL_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_sCAL_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_sCAL_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_sCAL_SUPPORTED*/"
-#endif
-
-/* option: WRITE_oFFs enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_oFFs_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_oFFs
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_oFFs_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_oFFs_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_oFFs_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_oFFs_SUPPORTED*/"
-#endif
-
-/* option: READ_tEXt enabled
- * requires: READ_ANCILLARY_CHUNKS READ_TEXT
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!READ_ANCILLARY_CHUNKS*/
-#endif
-#ifndef PNG_READ_TEXT_SUPPORTED
-# undef PNG_on /*!READ_TEXT*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_tEXt_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_tEXt
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_tEXt_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_tEXt_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_tEXt_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_tEXt_SUPPORTED*/"
-#endif
-
-/* option: SET_USER_LIMITS enabled
- * requires: USER_LIMITS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_USER_LIMITS_SUPPORTED
-# undef PNG_on /*!USER_LIMITS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_SET_USER_LIMITS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_SET_USER_LIMITS
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_SET_USER_LIMITS_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_SET_USER_LIMITS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_SET_USER_LIMITS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_SET_USER_LIMITS_SUPPORTED*/"
-#endif
-
-/* option: WRITE_sBIT enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_sBIT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_sBIT
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_sBIT_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_sBIT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_sBIT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_sBIT_SUPPORTED*/"
-#endif
-
-/* option: READ_INVERT enabled
- * requires: READ_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_INVERT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_INVERT
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_INVERT_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_INVERT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_INVERT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_INVERT_SUPPORTED*/"
-#endif
-
-/* option: eXIf disabled
- * requires:
- * if:
- * enabled-by: READ_eXIf WRITE_eXIf
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_eXIf WRITE_eXIf */
-#ifdef PNG_READ_eXIf_SUPPORTED
-# undef PNG_not_enabled /*READ_eXIf*/
-#endif
-#ifdef PNG_WRITE_eXIf_SUPPORTED
-# undef PNG_not_enabled /*WRITE_eXIf*/
-#endif
-# ifndef PNG_eXIf_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_eXIf_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_eXIf_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_eXIf_SUPPORTED*/"
-#endif
-
-/* option: WRITE_cHRM enabled
- * requires: WRITE_ANCILLARY_CHUNKS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-# undef PNG_on /*!WRITE_ANCILLARY_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_cHRM_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_cHRM
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_cHRM_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_cHRM_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_cHRM_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_cHRM_SUPPORTED*/"
-#endif
-
-/* option: 16BIT disabled
- * requires:
- * if:
- * enabled-by: READ_16BIT WRITE_16BIT
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_16BIT WRITE_16BIT */
-#ifdef PNG_READ_16BIT_SUPPORTED
-# undef PNG_not_enabled /*READ_16BIT*/
-#endif
-#ifdef PNG_WRITE_16BIT_SUPPORTED
-# undef PNG_not_enabled /*WRITE_16BIT*/
-#endif
-# ifndef PNG_16BIT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_16BIT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_16BIT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_16BIT_SUPPORTED*/"
-#endif
-
-/* option: WRITE_USER_TRANSFORM enabled
- * requires: WRITE_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!WRITE_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_USER_TRANSFORM_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_USER_TRANSFORM
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_USER_TRANSFORM_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_USER_TRANSFORM_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_USER_TRANSFORM_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_USER_TRANSFORM_SUPPORTED*/"
-#endif
-
-/* option: READ_BGR enabled
- * requires: READ_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_BGR_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_BGR
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_BGR_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_BGR_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_BGR_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_BGR_SUPPORTED*/"
-#endif
-
-/* option: WRITE_PACKSWAP enabled
- * requires: WRITE_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!WRITE_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_PACKSWAP_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_PACKSWAP
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_PACKSWAP_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_PACKSWAP_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_PACKSWAP_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_PACKSWAP_SUPPORTED*/"
-#endif
-
-/* option: WRITE_INVERT_ALPHA enabled
- * requires: WRITE_TRANSFORMS
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!WRITE_TRANSFORMS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_WRITE_INVERT_ALPHA_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_WRITE_INVERT_ALPHA
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_WRITE_INVERT_ALPHA_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_WRITE_INVERT_ALPHA_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_WRITE_INVERT_ALPHA_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_WRITE_INVERT_ALPHA_SUPPORTED*/"
-#endif
-
-/* option: sCAL disabled
- * requires:
- * if:
- * enabled-by: READ_sCAL WRITE_sCAL
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_sCAL WRITE_sCAL */
-#ifdef PNG_READ_sCAL_SUPPORTED
-# undef PNG_not_enabled /*READ_sCAL*/
-#endif
-#ifdef PNG_WRITE_sCAL_SUPPORTED
-# undef PNG_not_enabled /*WRITE_sCAL*/
-#endif
-# ifndef PNG_sCAL_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_sCAL_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_sCAL_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_sCAL_SUPPORTED*/"
-#endif
-
-/* option: READ_GAMMA enabled
- * requires: READ_TRANSFORMS READ_gAMA READ_sRGB
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#ifndef PNG_READ_gAMA_SUPPORTED
-# undef PNG_on /*!READ_gAMA*/
-#endif
-#ifndef PNG_READ_sRGB_SUPPORTED
-# undef PNG_on /*!READ_sRGB*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_GAMMA_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_GAMMA
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_GAMMA_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_GAMMA_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_GAMMA_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_GAMMA_SUPPORTED*/"
-#endif
-
-/* option: USER_TRANSFORM_INFO enabled
- * requires:
- * if: READ_USER_TRANSFORM WRITE_USER_TRANSFORM
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-/* if READ_USER_TRANSFORM WRITE_USER_TRANSFORM */
-#define PNG_no_if 1
-#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
-# undef PNG_no_if /*READ_USER_TRANSFORM*/
-#endif
-#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
-# undef PNG_no_if /*WRITE_USER_TRANSFORM*/
-#endif
-#ifdef PNG_no_if /*missing if*/
-# undef PNG_on
-#endif
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_USER_TRANSFORM_INFO_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_USER_TRANSFORM_INFO
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_USER_TRANSFORM_INFO_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_USER_TRANSFORM_INFO_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_USER_TRANSFORM_INFO_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_USER_TRANSFORM_INFO_SUPPORTED*/"
-#endif
-
-/* option: READ_GET_PALETTE_MAX disabled
- * requires: READ_CHECK_FOR_INVALID_INDEX
- * if:
- * enabled-by: GET_PALETTE_MAX
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
-# undef PNG_on /*!READ_CHECK_FOR_INVALID_INDEX*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by GET_PALETTE_MAX */
-#ifdef PNG_GET_PALETTE_MAX_SUPPORTED
-# undef PNG_not_enabled /*GET_PALETTE_MAX*/
-#endif
-# ifndef PNG_READ_GET_PALETTE_MAX_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_GET_PALETTE_MAX_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_GET_PALETTE_MAX_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_GET_PALETTE_MAX_SUPPORTED*/"
-#endif
-
-/* option: sBIT disabled
- * requires:
- * if:
- * enabled-by: READ_sBIT WRITE_sBIT
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_sBIT WRITE_sBIT */
-#ifdef PNG_READ_sBIT_SUPPORTED
-# undef PNG_not_enabled /*READ_sBIT*/
-#endif
-#ifdef PNG_WRITE_sBIT_SUPPORTED
-# undef PNG_not_enabled /*WRITE_sBIT*/
-#endif
-# ifndef PNG_sBIT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_sBIT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_sBIT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_sBIT_SUPPORTED*/"
-#endif
-
-/* option: STORE_UNKNOWN_CHUNKS disabled
- * requires: UNKNOWN_CHUNKS
- * if:
- * enabled-by: WRITE_UNKNOWN_CHUNKS SAVE_UNKNOWN_CHUNKS
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
-# undef PNG_on /*!UNKNOWN_CHUNKS*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by WRITE_UNKNOWN_CHUNKS SAVE_UNKNOWN_CHUNKS */
-#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
-# undef PNG_not_enabled /*WRITE_UNKNOWN_CHUNKS*/
-#endif
-#ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
-# undef PNG_not_enabled /*SAVE_UNKNOWN_CHUNKS*/
-#endif
-# ifndef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED*/"
-#endif
-
-/* option: SIMPLIFIED_WRITE enabled
- * requires: WRITE SETJMP WRITE_SWAP WRITE_PACK WRITE_tRNS WRITE_gAMA WRITE_sRGB WRITE_cHRM
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_WRITE_SUPPORTED
-# undef PNG_on /*!WRITE*/
-#endif
-#ifndef PNG_SETJMP_SUPPORTED
-# undef PNG_on /*!SETJMP*/
-#endif
-#ifndef PNG_WRITE_SWAP_SUPPORTED
-# undef PNG_on /*!WRITE_SWAP*/
-#endif
-#ifndef PNG_WRITE_PACK_SUPPORTED
-# undef PNG_on /*!WRITE_PACK*/
-#endif
-#ifndef PNG_WRITE_tRNS_SUPPORTED
-# undef PNG_on /*!WRITE_tRNS*/
-#endif
-#ifndef PNG_WRITE_gAMA_SUPPORTED
-# undef PNG_on /*!WRITE_gAMA*/
-#endif
-#ifndef PNG_WRITE_sRGB_SUPPORTED
-# undef PNG_on /*!WRITE_sRGB*/
-#endif
-#ifndef PNG_WRITE_cHRM_SUPPORTED
-# undef PNG_on /*!WRITE_cHRM*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_SIMPLIFIED_WRITE_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_SIMPLIFIED_WRITE
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_SIMPLIFIED_WRITE_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_SIMPLIFIED_WRITE_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_SIMPLIFIED_WRITE_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_SIMPLIFIED_WRITE_SUPPORTED*/"
-#endif
-
-/* option: cHRM disabled
- * requires:
- * if:
- * enabled-by: READ_cHRM WRITE_cHRM
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_cHRM WRITE_cHRM */
-#ifdef PNG_READ_cHRM_SUPPORTED
-# undef PNG_not_enabled /*READ_cHRM*/
-#endif
-#ifdef PNG_WRITE_cHRM_SUPPORTED
-# undef PNG_not_enabled /*WRITE_cHRM*/
-#endif
-# ifndef PNG_cHRM_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_cHRM_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_cHRM_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_cHRM_SUPPORTED*/"
-#endif
-
-/* option: READ_ALPHA_MODE enabled
- * requires: READ_TRANSFORMS READ_GAMMA
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#ifndef PNG_READ_GAMMA_SUPPORTED
-# undef PNG_on /*!READ_GAMMA*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_ALPHA_MODE_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_ALPHA_MODE
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_ALPHA_MODE_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_ALPHA_MODE_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_ALPHA_MODE_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_ALPHA_MODE_SUPPORTED*/"
-#endif
-
-/* option: bKGD disabled
- * requires:
- * if:
- * enabled-by: READ_bKGD WRITE_bKGD
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_bKGD WRITE_bKGD */
-#ifdef PNG_READ_bKGD_SUPPORTED
-# undef PNG_not_enabled /*READ_bKGD*/
-#endif
-#ifdef PNG_WRITE_bKGD_SUPPORTED
-# undef PNG_not_enabled /*WRITE_bKGD*/
-#endif
-# ifndef PNG_bKGD_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_bKGD_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_bKGD_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_bKGD_SUPPORTED*/"
-#endif
-
-/* option: tRNS disabled
- * requires:
- * if:
- * enabled-by: READ_tRNS WRITE_tRNS
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_tRNS WRITE_tRNS */
-#ifdef PNG_READ_tRNS_SUPPORTED
-# undef PNG_not_enabled /*READ_tRNS*/
-#endif
-#ifdef PNG_WRITE_tRNS_SUPPORTED
-# undef PNG_not_enabled /*WRITE_tRNS*/
-#endif
-# ifndef PNG_tRNS_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_tRNS_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_tRNS_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_tRNS_SUPPORTED*/"
-#endif
-
-/* option: oFFs disabled
- * requires:
- * if:
- * enabled-by: READ_oFFs WRITE_oFFs
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_oFFs WRITE_oFFs */
-#ifdef PNG_READ_oFFs_SUPPORTED
-# undef PNG_not_enabled /*READ_oFFs*/
-#endif
-#ifdef PNG_WRITE_oFFs_SUPPORTED
-# undef PNG_not_enabled /*WRITE_oFFs*/
-#endif
-# ifndef PNG_oFFs_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_oFFs_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_oFFs_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_oFFs_SUPPORTED*/"
-#endif
-
-/* option: READ_RGB_TO_GRAY enabled
- * requires: READ_TRANSFORMS READ_GAMMA
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#ifndef PNG_READ_GAMMA_SUPPORTED
-# undef PNG_on /*!READ_GAMMA*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_RGB_TO_GRAY_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_RGB_TO_GRAY
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_RGB_TO_GRAY_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_RGB_TO_GRAY_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_RGB_TO_GRAY_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_RGB_TO_GRAY_SUPPORTED*/"
-#endif
-
-/* option: READ_EXPAND_16 enabled
- * requires: READ_TRANSFORMS READ_16BIT READ_EXPAND
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#ifndef PNG_READ_16BIT_SUPPORTED
-# undef PNG_on /*!READ_16BIT*/
-#endif
-#ifndef PNG_READ_EXPAND_SUPPORTED
-# undef PNG_on /*!READ_EXPAND*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_EXPAND_16_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_EXPAND_16
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_EXPAND_16_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_EXPAND_16_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_EXPAND_16_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_EXPAND_16_SUPPORTED*/"
-#endif
-
-/* option: USER_TRANSFORM_PTR enabled
- * requires:
- * if: READ_USER_TRANSFORM WRITE_USER_TRANSFORM
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-/* if READ_USER_TRANSFORM WRITE_USER_TRANSFORM */
-#define PNG_no_if 1
-#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
-# undef PNG_no_if /*READ_USER_TRANSFORM*/
-#endif
-#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
-# undef PNG_no_if /*WRITE_USER_TRANSFORM*/
-#endif
-#ifdef PNG_no_if /*missing if*/
-# undef PNG_on
-#endif
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_USER_TRANSFORM_PTR_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_USER_TRANSFORM_PTR
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_USER_TRANSFORM_PTR_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_USER_TRANSFORM_PTR_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_USER_TRANSFORM_PTR_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_USER_TRANSFORM_PTR_SUPPORTED*/"
-#endif
-
-/* option: READ_COMPRESSED_TEXT disabled
- * requires:
- * if:
- * enabled-by: READ_iCCP READ_iTXt READ_zTXt
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_iCCP READ_iTXt READ_zTXt */
-#ifdef PNG_READ_iCCP_SUPPORTED
-# undef PNG_not_enabled /*READ_iCCP*/
-#endif
-#ifdef PNG_READ_iTXt_SUPPORTED
-# undef PNG_not_enabled /*READ_iTXt*/
-#endif
-#ifdef PNG_READ_zTXt_SUPPORTED
-# undef PNG_not_enabled /*READ_zTXt*/
-#endif
-# ifndef PNG_READ_COMPRESSED_TEXT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_COMPRESSED_TEXT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_COMPRESSED_TEXT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_COMPRESSED_TEXT_SUPPORTED*/"
-#endif
-
-/* option: hIST disabled
- * requires:
- * if:
- * enabled-by: READ_hIST WRITE_hIST
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_hIST WRITE_hIST */
-#ifdef PNG_READ_hIST_SUPPORTED
-# undef PNG_not_enabled /*READ_hIST*/
-#endif
-#ifdef PNG_WRITE_hIST_SUPPORTED
-# undef PNG_not_enabled /*WRITE_hIST*/
-#endif
-# ifndef PNG_hIST_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_hIST_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_hIST_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_hIST_SUPPORTED*/"
-#endif
-
-/* option: SIMPLIFIED_WRITE_AFIRST enabled
- * requires: SIMPLIFIED_WRITE WRITE_SWAP_ALPHA
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_SIMPLIFIED_WRITE_SUPPORTED
-# undef PNG_on /*!SIMPLIFIED_WRITE*/
-#endif
-#ifndef PNG_WRITE_SWAP_ALPHA_SUPPORTED
-# undef PNG_on /*!WRITE_SWAP_ALPHA*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_SIMPLIFIED_WRITE_AFIRST
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED*/"
-#endif
-
-/* option: zTXt disabled
- * requires:
- * if:
- * enabled-by: READ_zTXt WRITE_zTXt
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_zTXt WRITE_zTXt */
-#ifdef PNG_READ_zTXt_SUPPORTED
-# undef PNG_not_enabled /*READ_zTXt*/
-#endif
-#ifdef PNG_WRITE_zTXt_SUPPORTED
-# undef PNG_not_enabled /*WRITE_zTXt*/
-#endif
-# ifndef PNG_zTXt_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_zTXt_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_zTXt_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_zTXt_SUPPORTED*/"
-#endif
-
-/* option: iCCP disabled
- * requires:
- * if:
- * enabled-by: READ_iCCP WRITE_iCCP
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_iCCP WRITE_iCCP */
-#ifdef PNG_READ_iCCP_SUPPORTED
-# undef PNG_not_enabled /*READ_iCCP*/
-#endif
-#ifdef PNG_WRITE_iCCP_SUPPORTED
-# undef PNG_not_enabled /*WRITE_iCCP*/
-#endif
-# ifndef PNG_iCCP_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_iCCP_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_iCCP_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_iCCP_SUPPORTED*/"
-#endif
-
-/* option: READ_BACKGROUND enabled
- * requires: READ_TRANSFORMS READ_STRIP_ALPHA READ_GAMMA
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#ifndef PNG_READ_STRIP_ALPHA_SUPPORTED
-# undef PNG_on /*!READ_STRIP_ALPHA*/
-#endif
-#ifndef PNG_READ_GAMMA_SUPPORTED
-# undef PNG_on /*!READ_GAMMA*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_READ_BACKGROUND_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_READ_BACKGROUND
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_READ_BACKGROUND_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_READ_BACKGROUND_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_READ_BACKGROUND_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_READ_BACKGROUND_SUPPORTED*/"
-#endif
-
-/* option: sRGB disabled
- * requires:
- * if:
- * enabled-by: READ_sRGB WRITE_sRGB
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_sRGB WRITE_sRGB */
-#ifdef PNG_READ_sRGB_SUPPORTED
-# undef PNG_not_enabled /*READ_sRGB*/
-#endif
-#ifdef PNG_WRITE_sRGB_SUPPORTED
-# undef PNG_not_enabled /*WRITE_sRGB*/
-#endif
-# ifndef PNG_sRGB_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_sRGB_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_sRGB_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_sRGB_SUPPORTED*/"
-#endif
-
-/* option: gAMA disabled
- * requires:
- * if:
- * enabled-by: READ_gAMA WRITE_gAMA
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_gAMA WRITE_gAMA */
-#ifdef PNG_READ_gAMA_SUPPORTED
-# undef PNG_not_enabled /*READ_gAMA*/
-#endif
-#ifdef PNG_WRITE_gAMA_SUPPORTED
-# undef PNG_not_enabled /*WRITE_gAMA*/
-#endif
-# ifndef PNG_gAMA_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_gAMA_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_gAMA_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_gAMA_SUPPORTED*/"
-#endif
-
-/* option: pCAL disabled
- * requires:
- * if:
- * enabled-by: READ_pCAL WRITE_pCAL
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_pCAL WRITE_pCAL */
-#ifdef PNG_READ_pCAL_SUPPORTED
-# undef PNG_not_enabled /*READ_pCAL*/
-#endif
-#ifdef PNG_WRITE_pCAL_SUPPORTED
-# undef PNG_not_enabled /*WRITE_pCAL*/
-#endif
-# ifndef PNG_pCAL_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_pCAL_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_pCAL_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_pCAL_SUPPORTED*/"
-#endif
-
-/* option: iTXt disabled
- * requires:
- * if:
- * enabled-by: READ_iTXt WRITE_iTXt
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_iTXt WRITE_iTXt */
-#ifdef PNG_READ_iTXt_SUPPORTED
-# undef PNG_not_enabled /*READ_iTXt*/
-#endif
-#ifdef PNG_WRITE_iTXt_SUPPORTED
-# undef PNG_not_enabled /*WRITE_iTXt*/
-#endif
-# ifndef PNG_iTXt_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_iTXt_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_iTXt_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_iTXt_SUPPORTED*/"
-#endif
-
-/* option: tIME disabled
- * requires:
- * if:
- * enabled-by: READ_tIME WRITE_tIME
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_tIME WRITE_tIME */
-#ifdef PNG_READ_tIME_SUPPORTED
-# undef PNG_not_enabled /*READ_tIME*/
-#endif
-#ifdef PNG_WRITE_tIME_SUPPORTED
-# undef PNG_not_enabled /*WRITE_tIME*/
-#endif
-# ifndef PNG_tIME_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_tIME_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_tIME_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_tIME_SUPPORTED*/"
-#endif
-
-/* option: pHYs disabled
- * requires:
- * if:
- * enabled-by: READ_pHYs WRITE_pHYs
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_pHYs WRITE_pHYs */
-#ifdef PNG_READ_pHYs_SUPPORTED
-# undef PNG_not_enabled /*READ_pHYs*/
-#endif
-#ifdef PNG_WRITE_pHYs_SUPPORTED
-# undef PNG_not_enabled /*WRITE_pHYs*/
-#endif
-# ifndef PNG_pHYs_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_pHYs_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_pHYs_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_pHYs_SUPPORTED*/"
-#endif
-
-/* option: TEXT disabled
- * requires:
- * if:
- * enabled-by: READ_TEXT WRITE_TEXT READ_iTXt WRITE_iTXt READ_zTXt WRITE_zTXt
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_TEXT WRITE_TEXT READ_iTXt WRITE_iTXt READ_zTXt WRITE_zTXt */
-#ifdef PNG_READ_TEXT_SUPPORTED
-# undef PNG_not_enabled /*READ_TEXT*/
-#endif
-#ifdef PNG_WRITE_TEXT_SUPPORTED
-# undef PNG_not_enabled /*WRITE_TEXT*/
-#endif
-#ifdef PNG_READ_iTXt_SUPPORTED
-# undef PNG_not_enabled /*READ_iTXt*/
-#endif
-#ifdef PNG_WRITE_iTXt_SUPPORTED
-# undef PNG_not_enabled /*WRITE_iTXt*/
-#endif
-#ifdef PNG_READ_zTXt_SUPPORTED
-# undef PNG_not_enabled /*READ_zTXt*/
-#endif
-#ifdef PNG_WRITE_zTXt_SUPPORTED
-# undef PNG_not_enabled /*WRITE_zTXt*/
-#endif
-# ifndef PNG_TEXT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_TEXT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_TEXT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_TEXT_SUPPORTED*/"
-#endif
-
-/* option: SAVE_INT_32 disabled
- * requires:
- * if:
- * enabled-by: WRITE_oFFs WRITE_pCAL WRITE_cHRM
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by WRITE_oFFs WRITE_pCAL WRITE_cHRM */
-#ifdef PNG_WRITE_oFFs_SUPPORTED
-# undef PNG_not_enabled /*WRITE_oFFs*/
-#endif
-#ifdef PNG_WRITE_pCAL_SUPPORTED
-# undef PNG_not_enabled /*WRITE_pCAL*/
-#endif
-#ifdef PNG_WRITE_cHRM_SUPPORTED
-# undef PNG_not_enabled /*WRITE_cHRM*/
-#endif
-# ifndef PNG_SAVE_INT_32_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_SAVE_INT_32_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_SAVE_INT_32_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_SAVE_INT_32_SUPPORTED*/"
-#endif
-
-/* option: sPLT disabled
- * requires:
- * if:
- * enabled-by: READ_sPLT WRITE_sPLT
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_sPLT WRITE_sPLT */
-#ifdef PNG_READ_sPLT_SUPPORTED
-# undef PNG_not_enabled /*READ_sPLT*/
-#endif
-#ifdef PNG_WRITE_sPLT_SUPPORTED
-# undef PNG_not_enabled /*WRITE_sPLT*/
-#endif
-# ifndef PNG_sPLT_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_sPLT_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_sPLT_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_sPLT_SUPPORTED*/"
-#endif
-
-/* option: tEXt disabled
- * requires:
- * if:
- * enabled-by: READ_tEXt WRITE_tEXt
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_tEXt WRITE_tEXt */
-#ifdef PNG_READ_tEXt_SUPPORTED
-# undef PNG_not_enabled /*READ_tEXt*/
-#endif
-#ifdef PNG_WRITE_tEXt_SUPPORTED
-# undef PNG_not_enabled /*WRITE_tEXt*/
-#endif
-# ifndef PNG_tEXt_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_tEXt_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_tEXt_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_tEXt_SUPPORTED*/"
-#endif
-
-/* option: COLORSPACE disabled
- * requires:
- * if:
- * enabled-by: READ_RGB_TO_GRAY READ_cHRM WRITE_cHRM READ_iCCP WRITE_iCCP READ_sRGB WRITE_sRGB
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by READ_RGB_TO_GRAY READ_cHRM WRITE_cHRM READ_iCCP WRITE_iCCP READ_sRGB WRITE_sRGB */
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
-# undef PNG_not_enabled /*READ_RGB_TO_GRAY*/
-#endif
-#ifdef PNG_READ_cHRM_SUPPORTED
-# undef PNG_not_enabled /*READ_cHRM*/
-#endif
-#ifdef PNG_WRITE_cHRM_SUPPORTED
-# undef PNG_not_enabled /*WRITE_cHRM*/
-#endif
-#ifdef PNG_READ_iCCP_SUPPORTED
-# undef PNG_not_enabled /*READ_iCCP*/
-#endif
-#ifdef PNG_WRITE_iCCP_SUPPORTED
-# undef PNG_not_enabled /*WRITE_iCCP*/
-#endif
-#ifdef PNG_READ_sRGB_SUPPORTED
-# undef PNG_not_enabled /*READ_sRGB*/
-#endif
-#ifdef PNG_WRITE_sRGB_SUPPORTED
-# undef PNG_not_enabled /*WRITE_sRGB*/
-#endif
-# ifndef PNG_COLORSPACE_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_COLORSPACE_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_COLORSPACE_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_COLORSPACE_SUPPORTED*/"
-#endif
-
-/* option: SIMPLIFIED_WRITE_STDIO enabled
- * requires: SIMPLIFIED_WRITE STDIO
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_SIMPLIFIED_WRITE_SUPPORTED
-# undef PNG_on /*!SIMPLIFIED_WRITE*/
-#endif
-#ifndef PNG_STDIO_SUPPORTED
-# undef PNG_on /*!STDIO*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_SIMPLIFIED_WRITE_STDIO
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_SIMPLIFIED_WRITE_STDIO_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED*/"
-#endif
-
-/* option: SIMPLIFIED_READ enabled
- * requires: SEQUENTIAL_READ READ_TRANSFORMS SETJMP BENIGN_ERRORS READ_EXPAND READ_16BIT READ_EXPAND_16 READ_SCALE_16_TO_8 READ_RGB_TO_GRAY READ_ALPHA_MODE READ_BACKGROUND READ_STRIP_ALPHA READ_FILLER READ_SWAP READ_PACK READ_GRAY_TO_RGB READ_GAMMA READ_tRNS READ_bKGD READ_gAMA READ_cHRM READ_sRGB READ_sBIT
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_SEQUENTIAL_READ_SUPPORTED
-# undef PNG_on /*!SEQUENTIAL_READ*/
-#endif
-#ifndef PNG_READ_TRANSFORMS_SUPPORTED
-# undef PNG_on /*!READ_TRANSFORMS*/
-#endif
-#ifndef PNG_SETJMP_SUPPORTED
-# undef PNG_on /*!SETJMP*/
-#endif
-#ifndef PNG_BENIGN_ERRORS_SUPPORTED
-# undef PNG_on /*!BENIGN_ERRORS*/
-#endif
-#ifndef PNG_READ_EXPAND_SUPPORTED
-# undef PNG_on /*!READ_EXPAND*/
-#endif
-#ifndef PNG_READ_16BIT_SUPPORTED
-# undef PNG_on /*!READ_16BIT*/
-#endif
-#ifndef PNG_READ_EXPAND_16_SUPPORTED
-# undef PNG_on /*!READ_EXPAND_16*/
-#endif
-#ifndef PNG_READ_SCALE_16_TO_8_SUPPORTED
-# undef PNG_on /*!READ_SCALE_16_TO_8*/
-#endif
-#ifndef PNG_READ_RGB_TO_GRAY_SUPPORTED
-# undef PNG_on /*!READ_RGB_TO_GRAY*/
-#endif
-#ifndef PNG_READ_ALPHA_MODE_SUPPORTED
-# undef PNG_on /*!READ_ALPHA_MODE*/
-#endif
-#ifndef PNG_READ_BACKGROUND_SUPPORTED
-# undef PNG_on /*!READ_BACKGROUND*/
-#endif
-#ifndef PNG_READ_STRIP_ALPHA_SUPPORTED
-# undef PNG_on /*!READ_STRIP_ALPHA*/
-#endif
-#ifndef PNG_READ_FILLER_SUPPORTED
-# undef PNG_on /*!READ_FILLER*/
-#endif
-#ifndef PNG_READ_SWAP_SUPPORTED
-# undef PNG_on /*!READ_SWAP*/
-#endif
-#ifndef PNG_READ_PACK_SUPPORTED
-# undef PNG_on /*!READ_PACK*/
-#endif
-#ifndef PNG_READ_GRAY_TO_RGB_SUPPORTED
-# undef PNG_on /*!READ_GRAY_TO_RGB*/
-#endif
-#ifndef PNG_READ_GAMMA_SUPPORTED
-# undef PNG_on /*!READ_GAMMA*/
-#endif
-#ifndef PNG_READ_tRNS_SUPPORTED
-# undef PNG_on /*!READ_tRNS*/
-#endif
-#ifndef PNG_READ_bKGD_SUPPORTED
-# undef PNG_on /*!READ_bKGD*/
-#endif
-#ifndef PNG_READ_gAMA_SUPPORTED
-# undef PNG_on /*!READ_gAMA*/
-#endif
-#ifndef PNG_READ_cHRM_SUPPORTED
-# undef PNG_on /*!READ_cHRM*/
-#endif
-#ifndef PNG_READ_sRGB_SUPPORTED
-# undef PNG_on /*!READ_sRGB*/
-#endif
-#ifndef PNG_READ_sBIT_SUPPORTED
-# undef PNG_on /*!READ_sBIT*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_SIMPLIFIED_READ_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_SIMPLIFIED_READ
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_SIMPLIFIED_READ_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_SIMPLIFIED_READ_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_SIMPLIFIED_READ_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_SIMPLIFIED_READ_SUPPORTED*/"
-#endif
-
-/* option: SIMPLIFIED_WRITE_BGR enabled
- * requires: SIMPLIFIED_WRITE WRITE_BGR
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_SIMPLIFIED_WRITE_SUPPORTED
-# undef PNG_on /*!SIMPLIFIED_WRITE*/
-#endif
-#ifndef PNG_WRITE_BGR_SUPPORTED
-# undef PNG_on /*!WRITE_BGR*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_SIMPLIFIED_WRITE_BGR
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_SIMPLIFIED_WRITE_BGR_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED*/"
-#endif
-
-/* option: SIMPLIFIED_READ_AFIRST enabled
- * requires: SIMPLIFIED_READ READ_SWAP_ALPHA
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_SIMPLIFIED_READ_SUPPORTED
-# undef PNG_on /*!SIMPLIFIED_READ*/
-#endif
-#ifndef PNG_READ_SWAP_ALPHA_SUPPORTED
-# undef PNG_on /*!READ_SWAP_ALPHA*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_SIMPLIFIED_READ_AFIRST
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_SIMPLIFIED_READ_AFIRST_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED*/"
-#endif
-
-/* option: SIMPLIFIED_READ_BGR enabled
- * requires: SIMPLIFIED_READ READ_BGR
- * if:
- * enabled-by:
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#ifndef PNG_SIMPLIFIED_READ_SUPPORTED
-# undef PNG_on /*!SIMPLIFIED_READ*/
-#endif
-#ifndef PNG_READ_BGR_SUPPORTED
-# undef PNG_on /*!READ_BGR*/
-#endif
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by */
-# ifndef PNG_SIMPLIFIED_READ_BGR_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# ifdef PNG_NO_SIMPLIFIED_READ_BGR
-# undef PNG_on /*turned off*/
-# endif
-# ifdef PNG_NO_SIMPLIFIED_READ_BGR_SUPPORTED
-# undef PNG_on /*turned off*/
-# endif
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_SIMPLIFIED_READ_BGR_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_SIMPLIFIED_READ_BGR_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_SIMPLIFIED_READ_BGR_SUPPORTED*/"
-#endif
-
-/* option: GAMMA disabled
- * requires:
- * if:
- * enabled-by: COLORSPACE READ_gAMA WRITE_gAMA READ_iCCP WRITE_iCCP READ_sRGB WRITE_sRGB
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by COLORSPACE READ_gAMA WRITE_gAMA READ_iCCP WRITE_iCCP READ_sRGB WRITE_sRGB */
-#ifdef PNG_COLORSPACE_SUPPORTED
-# undef PNG_not_enabled /*COLORSPACE*/
-#endif
-#ifdef PNG_READ_gAMA_SUPPORTED
-# undef PNG_not_enabled /*READ_gAMA*/
-#endif
-#ifdef PNG_WRITE_gAMA_SUPPORTED
-# undef PNG_not_enabled /*WRITE_gAMA*/
-#endif
-#ifdef PNG_READ_iCCP_SUPPORTED
-# undef PNG_not_enabled /*READ_iCCP*/
-#endif
-#ifdef PNG_WRITE_iCCP_SUPPORTED
-# undef PNG_not_enabled /*WRITE_iCCP*/
-#endif
-#ifdef PNG_READ_sRGB_SUPPORTED
-# undef PNG_not_enabled /*READ_sRGB*/
-#endif
-#ifdef PNG_WRITE_sRGB_SUPPORTED
-# undef PNG_not_enabled /*WRITE_sRGB*/
-#endif
-# ifndef PNG_GAMMA_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_GAMMA_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_GAMMA_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_GAMMA_SUPPORTED*/"
-#endif
-
-/* option: FORMAT_AFIRST disabled
- * requires:
- * if:
- * enabled-by: SIMPLIFIED_READ_AFIRST SIMPLIFIED_WRITE_AFIRST
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by SIMPLIFIED_READ_AFIRST SIMPLIFIED_WRITE_AFIRST */
-#ifdef PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED
-# undef PNG_not_enabled /*SIMPLIFIED_READ_AFIRST*/
-#endif
-#ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
-# undef PNG_not_enabled /*SIMPLIFIED_WRITE_AFIRST*/
-#endif
-# ifndef PNG_FORMAT_AFIRST_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_FORMAT_AFIRST_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_FORMAT_AFIRST_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_FORMAT_AFIRST_SUPPORTED*/"
-#endif
-
-/* option: FORMAT_BGR disabled
- * requires:
- * if:
- * enabled-by: SIMPLIFIED_READ_BGR SIMPLIFIED_WRITE_BGR
- * sets: */
-#undef PNG_on
-#define PNG_on 1
-#undef PNG_no_if
-#ifdef PNG_on /*requires, if*/
-# undef PNG_not_enabled
-# define PNG_not_enabled 1
- /* enabled by SIMPLIFIED_READ_BGR SIMPLIFIED_WRITE_BGR */
-#ifdef PNG_SIMPLIFIED_READ_BGR_SUPPORTED
-# undef PNG_not_enabled /*SIMPLIFIED_READ_BGR*/
-#endif
-#ifdef PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED
-# undef PNG_not_enabled /*SIMPLIFIED_WRITE_BGR*/
-#endif
-# ifndef PNG_FORMAT_BGR_SUPPORTED /*!command line*/
-# ifdef PNG_not_enabled /*!enabled*/
-# undef PNG_on /*default off*/
-# endif /*!enabled*/
-# ifdef PNG_on
-# define PNG_FORMAT_BGR_SUPPORTED
-# endif
-# endif /*!command line*/
-# ifdef PNG_on
- PNG_DFN "#define PNG_FORMAT_BGR_SUPPORTED"
-# endif /* definition */
-#endif /*requires, if*/
-#ifndef PNG_on
- PNG_DFN "/*#undef PNG_FORMAT_BGR_SUPPORTED*/"
-#endif
-PNG_DFN_END_SORT
- PNG_DFN "/* end of options */"
-
-/* SETTINGS */
- PNG_DFN "/* settings */"
-PNG_DFN_START_SORT 2
-
-/* setting: MAX_GAMMA_8
- * requires:
- * default: 11 11 */
-#ifdef PNG_MAX_GAMMA_8
- PNG_DFN "#define PNG_MAX_GAMMA_8 @" PNG_MAX_GAMMA_8 "@"
-#else /* use default */
-# ifdef PNG_set_MAX_GAMMA_8
- PNG_DFN "#define PNG_MAX_GAMMA_8 @" PNG_set_MAX_GAMMA_8 "@"
-# define PNG_MAX_GAMMA_8 1
-# else /*default*/
- PNG_DFN "#define PNG_MAX_GAMMA_8 11"
-# define PNG_MAX_GAMMA_8 1
-# endif /* defaults */
-#endif /* setting MAX_GAMMA_8 */
-
-/* setting: USER_VERSIONINFO_COMMENTS
- * requires:
- * default: */
-#ifdef PNG_USER_VERSIONINFO_COMMENTS
- PNG_DFN "#define PNG_USER_VERSIONINFO_COMMENTS @" PNG_USER_VERSIONINFO_COMMENTS "@"
-#else /* use default */
-# ifdef PNG_set_USER_VERSIONINFO_COMMENTS
- PNG_DFN "#define PNG_USER_VERSIONINFO_COMMENTS @" PNG_set_USER_VERSIONINFO_COMMENTS "@"
-# define PNG_USER_VERSIONINFO_COMMENTS 1
-# endif /* defaults */
-#endif /* setting USER_VERSIONINFO_COMMENTS */
-
-/* setting: USER_CONFIG
- * requires:
- * default: */
-#ifdef PNG_USER_CONFIG
- PNG_DFN "#define PNG_USER_CONFIG @" PNG_USER_CONFIG "@"
-#else /* use default */
-# ifdef PNG_set_USER_CONFIG
- PNG_DFN "#define PNG_USER_CONFIG @" PNG_set_USER_CONFIG "@"
-# define PNG_USER_CONFIG 1
-# endif /* defaults */
-#endif /* setting USER_CONFIG */
-
-/* setting: QUANTIZE_RED_BITS
- * requires:
- * default: 5 5 */
-#ifdef PNG_QUANTIZE_RED_BITS
- PNG_DFN "#define PNG_QUANTIZE_RED_BITS @" PNG_QUANTIZE_RED_BITS "@"
-#else /* use default */
-# ifdef PNG_set_QUANTIZE_RED_BITS
- PNG_DFN "#define PNG_QUANTIZE_RED_BITS @" PNG_set_QUANTIZE_RED_BITS "@"
-# define PNG_QUANTIZE_RED_BITS 1
-# else /*default*/
- PNG_DFN "#define PNG_QUANTIZE_RED_BITS 5"
-# define PNG_QUANTIZE_RED_BITS 1
-# endif /* defaults */
-#endif /* setting QUANTIZE_RED_BITS */
-
-/* setting: USER_WIDTH_MAX
- * requires:
- * default: 1000000 1000000 */
-#ifdef PNG_USER_WIDTH_MAX
- PNG_DFN "#define PNG_USER_WIDTH_MAX @" PNG_USER_WIDTH_MAX "@"
-#else /* use default */
-# ifdef PNG_set_USER_WIDTH_MAX
- PNG_DFN "#define PNG_USER_WIDTH_MAX @" PNG_set_USER_WIDTH_MAX "@"
-# define PNG_USER_WIDTH_MAX 1
-# else /*default*/
- PNG_DFN "#define PNG_USER_WIDTH_MAX 1000000"
-# define PNG_USER_WIDTH_MAX 1
-# endif /* defaults */
-#endif /* setting USER_WIDTH_MAX */
-
-/* setting: Z_DEFAULT_COMPRESSION
- * requires:
- * default: @Z_DEFAULT_COMPRESSION @" Z_DEFAULT_COMPRESSION "@ */
-#ifdef PNG_Z_DEFAULT_COMPRESSION
- PNG_DFN "#define PNG_Z_DEFAULT_COMPRESSION @" PNG_Z_DEFAULT_COMPRESSION "@"
-#else /* use default */
-# ifdef PNG_set_Z_DEFAULT_COMPRESSION
- PNG_DFN "#define PNG_Z_DEFAULT_COMPRESSION @" PNG_set_Z_DEFAULT_COMPRESSION "@"
-# define PNG_Z_DEFAULT_COMPRESSION 1
-# else /*default*/
- PNG_DFN "#define PNG_Z_DEFAULT_COMPRESSION @" Z_DEFAULT_COMPRESSION "@"
-# define PNG_Z_DEFAULT_COMPRESSION 1
-# endif /* defaults */
-#endif /* setting Z_DEFAULT_COMPRESSION */
-
-/* setting: PREFIX
- * requires:
- * default: */
-#ifdef PNG_PREFIX
- PNG_DFN "#define PNG_PREFIX @" PNG_PREFIX "@"
-#else /* use default */
-# ifdef PNG_set_PREFIX
- PNG_DFN "#define PNG_PREFIX @" PNG_set_PREFIX "@"
-# define PNG_PREFIX 1
-# endif /* defaults */
-#endif /* setting PREFIX */
-
-/* setting: USER_VERSIONINFO_LEGALTRADEMARKS
- * requires:
- * default: */
-#ifdef PNG_USER_VERSIONINFO_LEGALTRADEMARKS
- PNG_DFN "#define PNG_USER_VERSIONINFO_LEGALTRADEMARKS @" PNG_USER_VERSIONINFO_LEGALTRADEMARKS "@"
-#else /* use default */
-# ifdef PNG_set_USER_VERSIONINFO_LEGALTRADEMARKS
- PNG_DFN "#define PNG_USER_VERSIONINFO_LEGALTRADEMARKS @" PNG_set_USER_VERSIONINFO_LEGALTRADEMARKS "@"
-# define PNG_USER_VERSIONINFO_LEGALTRADEMARKS 1
-# endif /* defaults */
-#endif /* setting USER_VERSIONINFO_LEGALTRADEMARKS */
-
-/* setting: USER_VERSIONINFO_COMPANYNAME
- * requires:
- * default: */
-#ifdef PNG_USER_VERSIONINFO_COMPANYNAME
- PNG_DFN "#define PNG_USER_VERSIONINFO_COMPANYNAME @" PNG_USER_VERSIONINFO_COMPANYNAME "@"
-#else /* use default */
-# ifdef PNG_set_USER_VERSIONINFO_COMPANYNAME
- PNG_DFN "#define PNG_USER_VERSIONINFO_COMPANYNAME @" PNG_set_USER_VERSIONINFO_COMPANYNAME "@"
-# define PNG_USER_VERSIONINFO_COMPANYNAME 1
-# endif /* defaults */
-#endif /* setting USER_VERSIONINFO_COMPANYNAME */
-
-/* setting: INFLATE_BUF_SIZE
- * requires:
- * default: 1024 1024 */
-#ifdef PNG_INFLATE_BUF_SIZE
- PNG_DFN "#define PNG_INFLATE_BUF_SIZE @" PNG_INFLATE_BUF_SIZE "@"
-#else /* use default */
-# ifdef PNG_set_INFLATE_BUF_SIZE
- PNG_DFN "#define PNG_INFLATE_BUF_SIZE @" PNG_set_INFLATE_BUF_SIZE "@"
-# define PNG_INFLATE_BUF_SIZE 1
-# else /*default*/
- PNG_DFN "#define PNG_INFLATE_BUF_SIZE 1024"
-# define PNG_INFLATE_BUF_SIZE 1
-# endif /* defaults */
-#endif /* setting INFLATE_BUF_SIZE */
-
-/* setting: QUANTIZE_GREEN_BITS
- * requires:
- * default: 5 5 */
-#ifdef PNG_QUANTIZE_GREEN_BITS
- PNG_DFN "#define PNG_QUANTIZE_GREEN_BITS @" PNG_QUANTIZE_GREEN_BITS "@"
-#else /* use default */
-# ifdef PNG_set_QUANTIZE_GREEN_BITS
- PNG_DFN "#define PNG_QUANTIZE_GREEN_BITS @" PNG_set_QUANTIZE_GREEN_BITS "@"
-# define PNG_QUANTIZE_GREEN_BITS 1
-# else /*default*/
- PNG_DFN "#define PNG_QUANTIZE_GREEN_BITS 5"
-# define PNG_QUANTIZE_GREEN_BITS 1
-# endif /* defaults */
-#endif /* setting QUANTIZE_GREEN_BITS */
-
-/* setting: Z_DEFAULT_NOFILTER_STRATEGY
- * requires:
- * default: @Z_DEFAULT_STRATEGY @" Z_DEFAULT_STRATEGY "@ */
-#ifdef PNG_Z_DEFAULT_NOFILTER_STRATEGY
- PNG_DFN "#define PNG_Z_DEFAULT_NOFILTER_STRATEGY @" PNG_Z_DEFAULT_NOFILTER_STRATEGY "@"
-#else /* use default */
-# ifdef PNG_set_Z_DEFAULT_NOFILTER_STRATEGY
- PNG_DFN "#define PNG_Z_DEFAULT_NOFILTER_STRATEGY @" PNG_set_Z_DEFAULT_NOFILTER_STRATEGY "@"
-# define PNG_Z_DEFAULT_NOFILTER_STRATEGY 1
-# else /*default*/
- PNG_DFN "#define PNG_Z_DEFAULT_NOFILTER_STRATEGY @" Z_DEFAULT_STRATEGY "@"
-# define PNG_Z_DEFAULT_NOFILTER_STRATEGY 1
-# endif /* defaults */
-#endif /* setting Z_DEFAULT_NOFILTER_STRATEGY */
-
-/* setting: API_RULE
- * requires:
- * default: 0 0 */
-#ifdef PNG_API_RULE
- PNG_DFN "#define PNG_API_RULE @" PNG_API_RULE "@"
-#else /* use default */
-# ifdef PNG_set_API_RULE
- PNG_DFN "#define PNG_API_RULE @" PNG_set_API_RULE "@"
-# define PNG_API_RULE 1
-# else /*default*/
- PNG_DFN "#define PNG_API_RULE 0"
-# define PNG_API_RULE 1
-# endif /* defaults */
-#endif /* setting API_RULE */
-
-/* setting: USER_PRIVATEBUILD
- * requires:
- * default: */
-#ifdef PNG_USER_PRIVATEBUILD
- PNG_DFN "#define PNG_USER_PRIVATEBUILD @" PNG_USER_PRIVATEBUILD "@"
-#else /* use default */
-# ifdef PNG_set_USER_PRIVATEBUILD
- PNG_DFN "#define PNG_USER_PRIVATEBUILD @" PNG_set_USER_PRIVATEBUILD "@"
-# define PNG_USER_PRIVATEBUILD 1
-# endif /* defaults */
-#endif /* setting USER_PRIVATEBUILD */
-
-/* setting: IDAT_READ_SIZE
- * requires:
- * default: PNG_ZBUF_SIZE PNG_ZBUF_SIZE */
-#ifdef PNG_IDAT_READ_SIZE
- PNG_DFN "#define PNG_IDAT_READ_SIZE @" PNG_IDAT_READ_SIZE "@"
-#else /* use default */
-# ifdef PNG_set_IDAT_READ_SIZE
- PNG_DFN "#define PNG_IDAT_READ_SIZE @" PNG_set_IDAT_READ_SIZE "@"
-# define PNG_IDAT_READ_SIZE 1
-# else /*default*/
- PNG_DFN "#define PNG_IDAT_READ_SIZE PNG_ZBUF_SIZE"
-# define PNG_IDAT_READ_SIZE 1
-# endif /* defaults */
-#endif /* setting IDAT_READ_SIZE */
-
-/* setting: QUANTIZE_BLUE_BITS
- * requires:
- * default: 5 5 */
-#ifdef PNG_QUANTIZE_BLUE_BITS
- PNG_DFN "#define PNG_QUANTIZE_BLUE_BITS @" PNG_QUANTIZE_BLUE_BITS "@"
-#else /* use default */
-# ifdef PNG_set_QUANTIZE_BLUE_BITS
- PNG_DFN "#define PNG_QUANTIZE_BLUE_BITS @" PNG_set_QUANTIZE_BLUE_BITS "@"
-# define PNG_QUANTIZE_BLUE_BITS 1
-# else /*default*/
- PNG_DFN "#define PNG_QUANTIZE_BLUE_BITS 5"
-# define PNG_QUANTIZE_BLUE_BITS 1
-# endif /* defaults */
-#endif /* setting QUANTIZE_BLUE_BITS */
-
-/* setting: ARM_NEON_OPT
- * requires:
- * default: */
-#ifdef PNG_ARM_NEON_OPT
- PNG_DFN "#define PNG_ARM_NEON_OPT @" PNG_ARM_NEON_OPT "@"
-#else /* use default */
-# ifdef PNG_set_ARM_NEON_OPT
- PNG_DFN "#define PNG_ARM_NEON_OPT @" PNG_set_ARM_NEON_OPT "@"
-# define PNG_ARM_NEON_OPT 1
-# endif /* defaults */
-#endif /* setting ARM_NEON_OPT */
-
-/* setting: USER_CHUNK_CACHE_MAX
- * requires:
- * default: 1000 1000 */
-#ifdef PNG_USER_CHUNK_CACHE_MAX
- PNG_DFN "#define PNG_USER_CHUNK_CACHE_MAX @" PNG_USER_CHUNK_CACHE_MAX "@"
-#else /* use default */
-# ifdef PNG_set_USER_CHUNK_CACHE_MAX
- PNG_DFN "#define PNG_USER_CHUNK_CACHE_MAX @" PNG_set_USER_CHUNK_CACHE_MAX "@"
-# define PNG_USER_CHUNK_CACHE_MAX 1
-# else /*default*/
- PNG_DFN "#define PNG_USER_CHUNK_CACHE_MAX 1000"
-# define PNG_USER_CHUNK_CACHE_MAX 1
-# endif /* defaults */
-#endif /* setting USER_CHUNK_CACHE_MAX */
-
-/* setting: LINKAGE_FUNCTION
- * requires:
- * default: extern extern */
-#ifdef PNG_LINKAGE_FUNCTION
- PNG_DFN "#define PNG_LINKAGE_FUNCTION @" PNG_LINKAGE_FUNCTION "@"
-#else /* use default */
-# ifdef PNG_set_LINKAGE_FUNCTION
- PNG_DFN "#define PNG_LINKAGE_FUNCTION @" PNG_set_LINKAGE_FUNCTION "@"
-# define PNG_LINKAGE_FUNCTION 1
-# else /*default*/
- PNG_DFN "#define PNG_LINKAGE_FUNCTION extern"
-# define PNG_LINKAGE_FUNCTION 1
-# endif /* defaults */
-#endif /* setting LINKAGE_FUNCTION */
-
-/* setting: ZLIB_VERNUM
- * requires:
- * default: @ZLIB_VERNUM @" ZLIB_VERNUM "@ */
-#ifdef PNG_ZLIB_VERNUM
- PNG_DFN "#define PNG_ZLIB_VERNUM @" PNG_ZLIB_VERNUM "@"
-#else /* use default */
-# ifdef PNG_set_ZLIB_VERNUM
- PNG_DFN "#define PNG_ZLIB_VERNUM @" PNG_set_ZLIB_VERNUM "@"
-# define PNG_ZLIB_VERNUM 1
-# else /*default*/
- PNG_DFN "#define PNG_ZLIB_VERNUM @" ZLIB_VERNUM "@"
-# define PNG_ZLIB_VERNUM 1
-# endif /* defaults */
-#endif /* setting ZLIB_VERNUM */
-
-/* setting: USER_HEIGHT_MAX
- * requires:
- * default: 1000000 1000000 */
-#ifdef PNG_USER_HEIGHT_MAX
- PNG_DFN "#define PNG_USER_HEIGHT_MAX @" PNG_USER_HEIGHT_MAX "@"
-#else /* use default */
-# ifdef PNG_set_USER_HEIGHT_MAX
- PNG_DFN "#define PNG_USER_HEIGHT_MAX @" PNG_set_USER_HEIGHT_MAX "@"
-# define PNG_USER_HEIGHT_MAX 1
-# else /*default*/
- PNG_DFN "#define PNG_USER_HEIGHT_MAX 1000000"
-# define PNG_USER_HEIGHT_MAX 1
-# endif /* defaults */
-#endif /* setting USER_HEIGHT_MAX */
-
-/* setting: TEXT_Z_DEFAULT_STRATEGY
- * requires:
- * default: @Z_DEFAULT_STRATEGY @" Z_DEFAULT_STRATEGY "@ */
-#ifdef PNG_TEXT_Z_DEFAULT_STRATEGY
- PNG_DFN "#define PNG_TEXT_Z_DEFAULT_STRATEGY @" PNG_TEXT_Z_DEFAULT_STRATEGY "@"
-#else /* use default */
-# ifdef PNG_set_TEXT_Z_DEFAULT_STRATEGY
- PNG_DFN "#define PNG_TEXT_Z_DEFAULT_STRATEGY @" PNG_set_TEXT_Z_DEFAULT_STRATEGY "@"
-# define PNG_TEXT_Z_DEFAULT_STRATEGY 1
-# else /*default*/
- PNG_DFN "#define PNG_TEXT_Z_DEFAULT_STRATEGY @" Z_DEFAULT_STRATEGY "@"
-# define PNG_TEXT_Z_DEFAULT_STRATEGY 1
-# endif /* defaults */
-#endif /* setting TEXT_Z_DEFAULT_STRATEGY */
-
-/* setting: sCAL_PRECISION
- * requires:
- * default: 5 5 */
-#ifdef PNG_sCAL_PRECISION
- PNG_DFN "#define PNG_sCAL_PRECISION @" PNG_sCAL_PRECISION "@"
-#else /* use default */
-# ifdef PNG_set_sCAL_PRECISION
- PNG_DFN "#define PNG_sCAL_PRECISION @" PNG_set_sCAL_PRECISION "@"
-# define PNG_sCAL_PRECISION 1
-# else /*default*/
- PNG_DFN "#define PNG_sCAL_PRECISION 5"
-# define PNG_sCAL_PRECISION 1
-# endif /* defaults */
-#endif /* setting sCAL_PRECISION */
-
-/* setting: LINKAGE_API
- * requires:
- * default: extern extern */
-#ifdef PNG_LINKAGE_API
- PNG_DFN "#define PNG_LINKAGE_API @" PNG_LINKAGE_API "@"
-#else /* use default */
-# ifdef PNG_set_LINKAGE_API
- PNG_DFN "#define PNG_LINKAGE_API @" PNG_set_LINKAGE_API "@"
-# define PNG_LINKAGE_API 1
-# else /*default*/
- PNG_DFN "#define PNG_LINKAGE_API extern"
-# define PNG_LINKAGE_API 1
-# endif /* defaults */
-#endif /* setting LINKAGE_API */
-
-/* setting: TEXT_Z_DEFAULT_COMPRESSION
- * requires:
- * default: @Z_DEFAULT_COMPRESSION @" Z_DEFAULT_COMPRESSION "@ */
-#ifdef PNG_TEXT_Z_DEFAULT_COMPRESSION
- PNG_DFN "#define PNG_TEXT_Z_DEFAULT_COMPRESSION @" PNG_TEXT_Z_DEFAULT_COMPRESSION "@"
-#else /* use default */
-# ifdef PNG_set_TEXT_Z_DEFAULT_COMPRESSION
- PNG_DFN "#define PNG_TEXT_Z_DEFAULT_COMPRESSION @" PNG_set_TEXT_Z_DEFAULT_COMPRESSION "@"
-# define PNG_TEXT_Z_DEFAULT_COMPRESSION 1
-# else /*default*/
- PNG_DFN "#define PNG_TEXT_Z_DEFAULT_COMPRESSION @" Z_DEFAULT_COMPRESSION "@"
-# define PNG_TEXT_Z_DEFAULT_COMPRESSION 1
-# endif /* defaults */
-#endif /* setting TEXT_Z_DEFAULT_COMPRESSION */
-
-/* setting: USER_DLLFNAME_POSTFIX
- * requires:
- * default: */
-#ifdef PNG_USER_DLLFNAME_POSTFIX
- PNG_DFN "#define PNG_USER_DLLFNAME_POSTFIX @" PNG_USER_DLLFNAME_POSTFIX "@"
-#else /* use default */
-# ifdef PNG_set_USER_DLLFNAME_POSTFIX
- PNG_DFN "#define PNG_USER_DLLFNAME_POSTFIX @" PNG_set_USER_DLLFNAME_POSTFIX "@"
-# define PNG_USER_DLLFNAME_POSTFIX 1
-# endif /* defaults */
-#endif /* setting USER_DLLFNAME_POSTFIX */
-
-/* setting: LINKAGE_DATA
- * requires:
- * default: extern extern */
-#ifdef PNG_LINKAGE_DATA
- PNG_DFN "#define PNG_LINKAGE_DATA @" PNG_LINKAGE_DATA "@"
-#else /* use default */
-# ifdef PNG_set_LINKAGE_DATA
- PNG_DFN "#define PNG_LINKAGE_DATA @" PNG_set_LINKAGE_DATA "@"
-# define PNG_LINKAGE_DATA 1
-# else /*default*/
- PNG_DFN "#define PNG_LINKAGE_DATA extern"
-# define PNG_LINKAGE_DATA 1
-# endif /* defaults */
-#endif /* setting LINKAGE_DATA */
-
-/* setting: LINKAGE_CALLBACK
- * requires:
- * default: extern extern */
-#ifdef PNG_LINKAGE_CALLBACK
- PNG_DFN "#define PNG_LINKAGE_CALLBACK @" PNG_LINKAGE_CALLBACK "@"
-#else /* use default */
-# ifdef PNG_set_LINKAGE_CALLBACK
- PNG_DFN "#define PNG_LINKAGE_CALLBACK @" PNG_set_LINKAGE_CALLBACK "@"
-# define PNG_LINKAGE_CALLBACK 1
-# else /*default*/
- PNG_DFN "#define PNG_LINKAGE_CALLBACK extern"
-# define PNG_LINKAGE_CALLBACK 1
-# endif /* defaults */
-#endif /* setting LINKAGE_CALLBACK */
-
-/* setting: USER_CHUNK_MALLOC_MAX
- * requires:
- * default: 8000000 8000000 */
-#ifdef PNG_USER_CHUNK_MALLOC_MAX
- PNG_DFN "#define PNG_USER_CHUNK_MALLOC_MAX @" PNG_USER_CHUNK_MALLOC_MAX "@"
-#else /* use default */
-# ifdef PNG_set_USER_CHUNK_MALLOC_MAX
- PNG_DFN "#define PNG_USER_CHUNK_MALLOC_MAX @" PNG_set_USER_CHUNK_MALLOC_MAX "@"
-# define PNG_USER_CHUNK_MALLOC_MAX 1
-# else /*default*/
- PNG_DFN "#define PNG_USER_CHUNK_MALLOC_MAX 8000000"
-# define PNG_USER_CHUNK_MALLOC_MAX 1
-# endif /* defaults */
-#endif /* setting USER_CHUNK_MALLOC_MAX */
-
-/* setting: DEFAULT_READ_MACROS
- * requires:
- * default: 1 1 */
-#ifdef PNG_DEFAULT_READ_MACROS
- PNG_DFN "#define PNG_DEFAULT_READ_MACROS @" PNG_DEFAULT_READ_MACROS "@"
-#else /* use default */
-# ifdef PNG_set_DEFAULT_READ_MACROS
- PNG_DFN "#define PNG_DEFAULT_READ_MACROS @" PNG_set_DEFAULT_READ_MACROS "@"
-# define PNG_DEFAULT_READ_MACROS 1
-# else /*default*/
- PNG_DFN "#define PNG_DEFAULT_READ_MACROS 1"
-# define PNG_DEFAULT_READ_MACROS 1
-# endif /* defaults */
-#endif /* setting DEFAULT_READ_MACROS */
-
-/* setting: POWERPC_VSX_OPT
- * requires:
- * default: */
-#ifdef PNG_POWERPC_VSX_OPT
- PNG_DFN "#define PNG_POWERPC_VSX_OPT @" PNG_POWERPC_VSX_OPT "@"
-#else /* use default */
-# ifdef PNG_set_POWERPC_VSX_OPT
- PNG_DFN "#define PNG_POWERPC_VSX_OPT @" PNG_set_POWERPC_VSX_OPT "@"
-# define PNG_POWERPC_VSX_OPT 1
-# endif /* defaults */
-#endif /* setting POWERPC_VSX_OPT */
-
-/* setting: ZBUF_SIZE
- * requires:
- * default: 8192 8192 */
-#ifdef PNG_ZBUF_SIZE
- PNG_DFN "#define PNG_ZBUF_SIZE @" PNG_ZBUF_SIZE "@"
-#else /* use default */
-# ifdef PNG_set_ZBUF_SIZE
- PNG_DFN "#define PNG_ZBUF_SIZE @" PNG_set_ZBUF_SIZE "@"
-# define PNG_ZBUF_SIZE 1
-# else /*default*/
- PNG_DFN "#define PNG_ZBUF_SIZE 8192"
-# define PNG_ZBUF_SIZE 1
-# endif /* defaults */
-#endif /* setting ZBUF_SIZE */
-
-/* setting: Z_DEFAULT_STRATEGY
- * requires:
- * default: @Z_FILTERED @" Z_FILTERED "@ */
-#ifdef PNG_Z_DEFAULT_STRATEGY
- PNG_DFN "#define PNG_Z_DEFAULT_STRATEGY @" PNG_Z_DEFAULT_STRATEGY "@"
-#else /* use default */
-# ifdef PNG_set_Z_DEFAULT_STRATEGY
- PNG_DFN "#define PNG_Z_DEFAULT_STRATEGY @" PNG_set_Z_DEFAULT_STRATEGY "@"
-# define PNG_Z_DEFAULT_STRATEGY 1
-# else /*default*/
- PNG_DFN "#define PNG_Z_DEFAULT_STRATEGY @" Z_FILTERED "@"
-# define PNG_Z_DEFAULT_STRATEGY 1
-# endif /* defaults */
-#endif /* setting Z_DEFAULT_STRATEGY */
-
-/* setting: GAMMA_THRESHOLD_FIXED
- * requires:
- * default: 5000 5000 */
-#ifdef PNG_GAMMA_THRESHOLD_FIXED
- PNG_DFN "#define PNG_GAMMA_THRESHOLD_FIXED @" PNG_GAMMA_THRESHOLD_FIXED "@"
-#else /* use default */
-# ifdef PNG_set_GAMMA_THRESHOLD_FIXED
- PNG_DFN "#define PNG_GAMMA_THRESHOLD_FIXED @" PNG_set_GAMMA_THRESHOLD_FIXED "@"
-# define PNG_GAMMA_THRESHOLD_FIXED 1
-# else /*default*/
- PNG_DFN "#define PNG_GAMMA_THRESHOLD_FIXED 5000"
-# define PNG_GAMMA_THRESHOLD_FIXED 1
-# endif /* defaults */
-#endif /* setting GAMMA_THRESHOLD_FIXED */
-
-/* setting: sRGB_PROFILE_CHECKS
- * requires:
- * default: 2 2 */
-#ifdef PNG_sRGB_PROFILE_CHECKS
- PNG_DFN "#define PNG_sRGB_PROFILE_CHECKS @" PNG_sRGB_PROFILE_CHECKS "@"
-#else /* use default */
-# ifdef PNG_set_sRGB_PROFILE_CHECKS
- PNG_DFN "#define PNG_sRGB_PROFILE_CHECKS @" PNG_set_sRGB_PROFILE_CHECKS "@"
-# define PNG_sRGB_PROFILE_CHECKS 1
-# else /*default*/
- PNG_DFN "#define PNG_sRGB_PROFILE_CHECKS 2"
-# define PNG_sRGB_PROFILE_CHECKS 1
-# endif /* defaults */
-#endif /* setting sRGB_PROFILE_CHECKS */
-PNG_DFN_END_SORT
- PNG_DFN "/* end of settings */"
- PNG_DFN "#endif /* PNGLCONF_H */"
diff --git a/3rdparty/libpng/libpng-1.6.37/pnglibconf.h b/3rdparty/libpng/libpng-1.6.37/pnglibconf.h
deleted file mode 100644
index 2eb765f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pnglibconf.h
+++ /dev/null
@@ -1,220 +0,0 @@
-/* pnglibconf.h - library build configuration */
-
-/* libpng version 1.6.37 */
-
-/* Copyright (c) 2018-2019 Cosmin Truta */
-/* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson */
-
-/* This code is released under the libpng license. */
-/* For conditions of distribution and use, see the disclaimer */
-/* and license in png.h */
-
-/* pnglibconf.h */
-/* Machine generated file: DO NOT EDIT */
-/* Derived from: scripts/pnglibconf.dfa */
-#ifndef PNGLCONF_H
-#define PNGLCONF_H
-/* options */
-#define PNG_16BIT_SUPPORTED
-#define PNG_ALIGNED_MEMORY_SUPPORTED
-/*#undef PNG_ARM_NEON_API_SUPPORTED*/
-/*#undef PNG_ARM_NEON_CHECK_SUPPORTED*/
-#define PNG_BENIGN_ERRORS_SUPPORTED
-#define PNG_BENIGN_READ_ERRORS_SUPPORTED
-/*#undef PNG_BENIGN_WRITE_ERRORS_SUPPORTED*/
-#define PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED
-#define PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
-#define PNG_COLORSPACE_SUPPORTED
-#define PNG_CONSOLE_IO_SUPPORTED
-#define PNG_CONVERT_tIME_SUPPORTED
-#define PNG_EASY_ACCESS_SUPPORTED
-/*#undef PNG_ERROR_NUMBERS_SUPPORTED*/
-#define PNG_ERROR_TEXT_SUPPORTED
-#define PNG_FIXED_POINT_SUPPORTED
-#define PNG_FLOATING_ARITHMETIC_SUPPORTED
-#define PNG_FLOATING_POINT_SUPPORTED
-#define PNG_FORMAT_AFIRST_SUPPORTED
-#define PNG_FORMAT_BGR_SUPPORTED
-#define PNG_GAMMA_SUPPORTED
-#define PNG_GET_PALETTE_MAX_SUPPORTED
-#define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
-#define PNG_INCH_CONVERSIONS_SUPPORTED
-#define PNG_INFO_IMAGE_SUPPORTED
-#define PNG_IO_STATE_SUPPORTED
-#define PNG_MNG_FEATURES_SUPPORTED
-#define PNG_POINTER_INDEXING_SUPPORTED
-/*#undef PNG_POWERPC_VSX_API_SUPPORTED*/
-/*#undef PNG_POWERPC_VSX_CHECK_SUPPORTED*/
-#define PNG_PROGRESSIVE_READ_SUPPORTED
-#define PNG_READ_16BIT_SUPPORTED
-#define PNG_READ_ALPHA_MODE_SUPPORTED
-#define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-#define PNG_READ_BACKGROUND_SUPPORTED
-#define PNG_READ_BGR_SUPPORTED
-#define PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
-#define PNG_READ_COMPOSITE_NODIV_SUPPORTED
-#define PNG_READ_COMPRESSED_TEXT_SUPPORTED
-#define PNG_READ_EXPAND_16_SUPPORTED
-#define PNG_READ_EXPAND_SUPPORTED
-#define PNG_READ_FILLER_SUPPORTED
-#define PNG_READ_GAMMA_SUPPORTED
-#define PNG_READ_GET_PALETTE_MAX_SUPPORTED
-#define PNG_READ_GRAY_TO_RGB_SUPPORTED
-#define PNG_READ_INTERLACING_SUPPORTED
-#define PNG_READ_INT_FUNCTIONS_SUPPORTED
-#define PNG_READ_INVERT_ALPHA_SUPPORTED
-#define PNG_READ_INVERT_SUPPORTED
-#define PNG_READ_OPT_PLTE_SUPPORTED
-#define PNG_READ_PACKSWAP_SUPPORTED
-#define PNG_READ_PACK_SUPPORTED
-#define PNG_READ_QUANTIZE_SUPPORTED
-#define PNG_READ_RGB_TO_GRAY_SUPPORTED
-#define PNG_READ_SCALE_16_TO_8_SUPPORTED
-#define PNG_READ_SHIFT_SUPPORTED
-#define PNG_READ_STRIP_16_TO_8_SUPPORTED
-#define PNG_READ_STRIP_ALPHA_SUPPORTED
-#define PNG_READ_SUPPORTED
-#define PNG_READ_SWAP_ALPHA_SUPPORTED
-#define PNG_READ_SWAP_SUPPORTED
-#define PNG_READ_TEXT_SUPPORTED
-#define PNG_READ_TRANSFORMS_SUPPORTED
-#define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_READ_USER_CHUNKS_SUPPORTED
-#define PNG_READ_USER_TRANSFORM_SUPPORTED
-#define PNG_READ_bKGD_SUPPORTED
-#define PNG_READ_cHRM_SUPPORTED
-#define PNG_READ_eXIf_SUPPORTED
-#define PNG_READ_gAMA_SUPPORTED
-#define PNG_READ_hIST_SUPPORTED
-#define PNG_READ_iCCP_SUPPORTED
-#define PNG_READ_iTXt_SUPPORTED
-#define PNG_READ_oFFs_SUPPORTED
-#define PNG_READ_pCAL_SUPPORTED
-#define PNG_READ_pHYs_SUPPORTED
-#define PNG_READ_sBIT_SUPPORTED
-#define PNG_READ_sCAL_SUPPORTED
-#define PNG_READ_sPLT_SUPPORTED
-#define PNG_READ_sRGB_SUPPORTED
-#define PNG_READ_tEXt_SUPPORTED
-#define PNG_READ_tIME_SUPPORTED
-#define PNG_READ_tRNS_SUPPORTED
-#define PNG_READ_zTXt_SUPPORTED
-#define PNG_SAVE_INT_32_SUPPORTED
-#define PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_SEQUENTIAL_READ_SUPPORTED
-#define PNG_SETJMP_SUPPORTED
-#define PNG_SET_OPTION_SUPPORTED
-#define PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_SET_USER_LIMITS_SUPPORTED
-#define PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED
-#define PNG_SIMPLIFIED_READ_BGR_SUPPORTED
-#define PNG_SIMPLIFIED_READ_SUPPORTED
-#define PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
-#define PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED
-#define PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED
-#define PNG_SIMPLIFIED_WRITE_SUPPORTED
-#define PNG_STDIO_SUPPORTED
-#define PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_TEXT_SUPPORTED
-#define PNG_TIME_RFC1123_SUPPORTED
-#define PNG_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_USER_CHUNKS_SUPPORTED
-#define PNG_USER_LIMITS_SUPPORTED
-#define PNG_USER_MEM_SUPPORTED
-#define PNG_USER_TRANSFORM_INFO_SUPPORTED
-#define PNG_USER_TRANSFORM_PTR_SUPPORTED
-#define PNG_WARNINGS_SUPPORTED
-#define PNG_WRITE_16BIT_SUPPORTED
-#define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-#define PNG_WRITE_BGR_SUPPORTED
-#define PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
-#define PNG_WRITE_COMPRESSED_TEXT_SUPPORTED
-#define PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
-#define PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
-#define PNG_WRITE_FILLER_SUPPORTED
-#define PNG_WRITE_FILTER_SUPPORTED
-#define PNG_WRITE_FLUSH_SUPPORTED
-#define PNG_WRITE_GET_PALETTE_MAX_SUPPORTED
-#define PNG_WRITE_INTERLACING_SUPPORTED
-#define PNG_WRITE_INT_FUNCTIONS_SUPPORTED
-#define PNG_WRITE_INVERT_ALPHA_SUPPORTED
-#define PNG_WRITE_INVERT_SUPPORTED
-#define PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
-#define PNG_WRITE_PACKSWAP_SUPPORTED
-#define PNG_WRITE_PACK_SUPPORTED
-#define PNG_WRITE_SHIFT_SUPPORTED
-#define PNG_WRITE_SUPPORTED
-#define PNG_WRITE_SWAP_ALPHA_SUPPORTED
-#define PNG_WRITE_SWAP_SUPPORTED
-#define PNG_WRITE_TEXT_SUPPORTED
-#define PNG_WRITE_TRANSFORMS_SUPPORTED
-#define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_WRITE_USER_TRANSFORM_SUPPORTED
-#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
-#define PNG_WRITE_bKGD_SUPPORTED
-#define PNG_WRITE_cHRM_SUPPORTED
-#define PNG_WRITE_eXIf_SUPPORTED
-#define PNG_WRITE_gAMA_SUPPORTED
-#define PNG_WRITE_hIST_SUPPORTED
-#define PNG_WRITE_iCCP_SUPPORTED
-#define PNG_WRITE_iTXt_SUPPORTED
-#define PNG_WRITE_oFFs_SUPPORTED
-#define PNG_WRITE_pCAL_SUPPORTED
-#define PNG_WRITE_pHYs_SUPPORTED
-#define PNG_WRITE_sBIT_SUPPORTED
-#define PNG_WRITE_sCAL_SUPPORTED
-#define PNG_WRITE_sPLT_SUPPORTED
-#define PNG_WRITE_sRGB_SUPPORTED
-#define PNG_WRITE_tEXt_SUPPORTED
-#define PNG_WRITE_tIME_SUPPORTED
-#define PNG_WRITE_tRNS_SUPPORTED
-#define PNG_WRITE_zTXt_SUPPORTED
-#define PNG_bKGD_SUPPORTED
-#define PNG_cHRM_SUPPORTED
-#define PNG_eXIf_SUPPORTED
-#define PNG_gAMA_SUPPORTED
-#define PNG_hIST_SUPPORTED
-#define PNG_iCCP_SUPPORTED
-#define PNG_iTXt_SUPPORTED
-#define PNG_oFFs_SUPPORTED
-#define PNG_pCAL_SUPPORTED
-#define PNG_pHYs_SUPPORTED
-#define PNG_sBIT_SUPPORTED
-#define PNG_sCAL_SUPPORTED
-#define PNG_sPLT_SUPPORTED
-#define PNG_sRGB_SUPPORTED
-#define PNG_tEXt_SUPPORTED
-#define PNG_tIME_SUPPORTED
-#define PNG_tRNS_SUPPORTED
-#define PNG_zTXt_SUPPORTED
-/* end of options */
-/* settings */
-#define PNG_API_RULE 0
-#define PNG_ARM_NEON_OPT 2
-#define PNG_DEFAULT_READ_MACROS 1
-#define PNG_GAMMA_THRESHOLD_FIXED 5000
-#define PNG_IDAT_READ_SIZE PNG_ZBUF_SIZE
-#define PNG_INFLATE_BUF_SIZE 1024
-#define PNG_LINKAGE_API extern
-#define PNG_LINKAGE_CALLBACK extern
-#define PNG_LINKAGE_DATA extern
-#define PNG_LINKAGE_FUNCTION extern
-#define PNG_MAX_GAMMA_8 11
-#define PNG_QUANTIZE_BLUE_BITS 5
-#define PNG_QUANTIZE_GREEN_BITS 5
-#define PNG_QUANTIZE_RED_BITS 5
-#define PNG_TEXT_Z_DEFAULT_COMPRESSION (-1)
-#define PNG_TEXT_Z_DEFAULT_STRATEGY 0
-#define PNG_USER_CHUNK_CACHE_MAX 1000
-#define PNG_USER_CHUNK_MALLOC_MAX 8000000
-#define PNG_USER_HEIGHT_MAX 1000000
-#define PNG_USER_WIDTH_MAX 1000000
-#define PNG_ZBUF_SIZE 8192
-#define PNG_ZLIB_VERNUM 0x12b0
-#define PNG_Z_DEFAULT_COMPRESSION (-1)
-#define PNG_Z_DEFAULT_NOFILTER_STRATEGY 0
-#define PNG_Z_DEFAULT_STRATEGY 1
-#define PNG_sCAL_PRECISION 5
-#define PNG_sRGB_PROFILE_CHECKS 2
-/* end of settings */
-#endif /* PNGLCONF_H */
diff --git a/3rdparty/libpng/libpng-1.6.37/pnglibconf.out b/3rdparty/libpng/libpng-1.6.37/pnglibconf.out
deleted file mode 100644
index 2eb765f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pnglibconf.out
+++ /dev/null
@@ -1,220 +0,0 @@
-/* pnglibconf.h - library build configuration */
-
-/* libpng version 1.6.37 */
-
-/* Copyright (c) 2018-2019 Cosmin Truta */
-/* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson */
-
-/* This code is released under the libpng license. */
-/* For conditions of distribution and use, see the disclaimer */
-/* and license in png.h */
-
-/* pnglibconf.h */
-/* Machine generated file: DO NOT EDIT */
-/* Derived from: scripts/pnglibconf.dfa */
-#ifndef PNGLCONF_H
-#define PNGLCONF_H
-/* options */
-#define PNG_16BIT_SUPPORTED
-#define PNG_ALIGNED_MEMORY_SUPPORTED
-/*#undef PNG_ARM_NEON_API_SUPPORTED*/
-/*#undef PNG_ARM_NEON_CHECK_SUPPORTED*/
-#define PNG_BENIGN_ERRORS_SUPPORTED
-#define PNG_BENIGN_READ_ERRORS_SUPPORTED
-/*#undef PNG_BENIGN_WRITE_ERRORS_SUPPORTED*/
-#define PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED
-#define PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
-#define PNG_COLORSPACE_SUPPORTED
-#define PNG_CONSOLE_IO_SUPPORTED
-#define PNG_CONVERT_tIME_SUPPORTED
-#define PNG_EASY_ACCESS_SUPPORTED
-/*#undef PNG_ERROR_NUMBERS_SUPPORTED*/
-#define PNG_ERROR_TEXT_SUPPORTED
-#define PNG_FIXED_POINT_SUPPORTED
-#define PNG_FLOATING_ARITHMETIC_SUPPORTED
-#define PNG_FLOATING_POINT_SUPPORTED
-#define PNG_FORMAT_AFIRST_SUPPORTED
-#define PNG_FORMAT_BGR_SUPPORTED
-#define PNG_GAMMA_SUPPORTED
-#define PNG_GET_PALETTE_MAX_SUPPORTED
-#define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
-#define PNG_INCH_CONVERSIONS_SUPPORTED
-#define PNG_INFO_IMAGE_SUPPORTED
-#define PNG_IO_STATE_SUPPORTED
-#define PNG_MNG_FEATURES_SUPPORTED
-#define PNG_POINTER_INDEXING_SUPPORTED
-/*#undef PNG_POWERPC_VSX_API_SUPPORTED*/
-/*#undef PNG_POWERPC_VSX_CHECK_SUPPORTED*/
-#define PNG_PROGRESSIVE_READ_SUPPORTED
-#define PNG_READ_16BIT_SUPPORTED
-#define PNG_READ_ALPHA_MODE_SUPPORTED
-#define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-#define PNG_READ_BACKGROUND_SUPPORTED
-#define PNG_READ_BGR_SUPPORTED
-#define PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
-#define PNG_READ_COMPOSITE_NODIV_SUPPORTED
-#define PNG_READ_COMPRESSED_TEXT_SUPPORTED
-#define PNG_READ_EXPAND_16_SUPPORTED
-#define PNG_READ_EXPAND_SUPPORTED
-#define PNG_READ_FILLER_SUPPORTED
-#define PNG_READ_GAMMA_SUPPORTED
-#define PNG_READ_GET_PALETTE_MAX_SUPPORTED
-#define PNG_READ_GRAY_TO_RGB_SUPPORTED
-#define PNG_READ_INTERLACING_SUPPORTED
-#define PNG_READ_INT_FUNCTIONS_SUPPORTED
-#define PNG_READ_INVERT_ALPHA_SUPPORTED
-#define PNG_READ_INVERT_SUPPORTED
-#define PNG_READ_OPT_PLTE_SUPPORTED
-#define PNG_READ_PACKSWAP_SUPPORTED
-#define PNG_READ_PACK_SUPPORTED
-#define PNG_READ_QUANTIZE_SUPPORTED
-#define PNG_READ_RGB_TO_GRAY_SUPPORTED
-#define PNG_READ_SCALE_16_TO_8_SUPPORTED
-#define PNG_READ_SHIFT_SUPPORTED
-#define PNG_READ_STRIP_16_TO_8_SUPPORTED
-#define PNG_READ_STRIP_ALPHA_SUPPORTED
-#define PNG_READ_SUPPORTED
-#define PNG_READ_SWAP_ALPHA_SUPPORTED
-#define PNG_READ_SWAP_SUPPORTED
-#define PNG_READ_TEXT_SUPPORTED
-#define PNG_READ_TRANSFORMS_SUPPORTED
-#define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_READ_USER_CHUNKS_SUPPORTED
-#define PNG_READ_USER_TRANSFORM_SUPPORTED
-#define PNG_READ_bKGD_SUPPORTED
-#define PNG_READ_cHRM_SUPPORTED
-#define PNG_READ_eXIf_SUPPORTED
-#define PNG_READ_gAMA_SUPPORTED
-#define PNG_READ_hIST_SUPPORTED
-#define PNG_READ_iCCP_SUPPORTED
-#define PNG_READ_iTXt_SUPPORTED
-#define PNG_READ_oFFs_SUPPORTED
-#define PNG_READ_pCAL_SUPPORTED
-#define PNG_READ_pHYs_SUPPORTED
-#define PNG_READ_sBIT_SUPPORTED
-#define PNG_READ_sCAL_SUPPORTED
-#define PNG_READ_sPLT_SUPPORTED
-#define PNG_READ_sRGB_SUPPORTED
-#define PNG_READ_tEXt_SUPPORTED
-#define PNG_READ_tIME_SUPPORTED
-#define PNG_READ_tRNS_SUPPORTED
-#define PNG_READ_zTXt_SUPPORTED
-#define PNG_SAVE_INT_32_SUPPORTED
-#define PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_SEQUENTIAL_READ_SUPPORTED
-#define PNG_SETJMP_SUPPORTED
-#define PNG_SET_OPTION_SUPPORTED
-#define PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_SET_USER_LIMITS_SUPPORTED
-#define PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED
-#define PNG_SIMPLIFIED_READ_BGR_SUPPORTED
-#define PNG_SIMPLIFIED_READ_SUPPORTED
-#define PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
-#define PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED
-#define PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED
-#define PNG_SIMPLIFIED_WRITE_SUPPORTED
-#define PNG_STDIO_SUPPORTED
-#define PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_TEXT_SUPPORTED
-#define PNG_TIME_RFC1123_SUPPORTED
-#define PNG_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_USER_CHUNKS_SUPPORTED
-#define PNG_USER_LIMITS_SUPPORTED
-#define PNG_USER_MEM_SUPPORTED
-#define PNG_USER_TRANSFORM_INFO_SUPPORTED
-#define PNG_USER_TRANSFORM_PTR_SUPPORTED
-#define PNG_WARNINGS_SUPPORTED
-#define PNG_WRITE_16BIT_SUPPORTED
-#define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-#define PNG_WRITE_BGR_SUPPORTED
-#define PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
-#define PNG_WRITE_COMPRESSED_TEXT_SUPPORTED
-#define PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
-#define PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
-#define PNG_WRITE_FILLER_SUPPORTED
-#define PNG_WRITE_FILTER_SUPPORTED
-#define PNG_WRITE_FLUSH_SUPPORTED
-#define PNG_WRITE_GET_PALETTE_MAX_SUPPORTED
-#define PNG_WRITE_INTERLACING_SUPPORTED
-#define PNG_WRITE_INT_FUNCTIONS_SUPPORTED
-#define PNG_WRITE_INVERT_ALPHA_SUPPORTED
-#define PNG_WRITE_INVERT_SUPPORTED
-#define PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
-#define PNG_WRITE_PACKSWAP_SUPPORTED
-#define PNG_WRITE_PACK_SUPPORTED
-#define PNG_WRITE_SHIFT_SUPPORTED
-#define PNG_WRITE_SUPPORTED
-#define PNG_WRITE_SWAP_ALPHA_SUPPORTED
-#define PNG_WRITE_SWAP_SUPPORTED
-#define PNG_WRITE_TEXT_SUPPORTED
-#define PNG_WRITE_TRANSFORMS_SUPPORTED
-#define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_WRITE_USER_TRANSFORM_SUPPORTED
-#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
-#define PNG_WRITE_bKGD_SUPPORTED
-#define PNG_WRITE_cHRM_SUPPORTED
-#define PNG_WRITE_eXIf_SUPPORTED
-#define PNG_WRITE_gAMA_SUPPORTED
-#define PNG_WRITE_hIST_SUPPORTED
-#define PNG_WRITE_iCCP_SUPPORTED
-#define PNG_WRITE_iTXt_SUPPORTED
-#define PNG_WRITE_oFFs_SUPPORTED
-#define PNG_WRITE_pCAL_SUPPORTED
-#define PNG_WRITE_pHYs_SUPPORTED
-#define PNG_WRITE_sBIT_SUPPORTED
-#define PNG_WRITE_sCAL_SUPPORTED
-#define PNG_WRITE_sPLT_SUPPORTED
-#define PNG_WRITE_sRGB_SUPPORTED
-#define PNG_WRITE_tEXt_SUPPORTED
-#define PNG_WRITE_tIME_SUPPORTED
-#define PNG_WRITE_tRNS_SUPPORTED
-#define PNG_WRITE_zTXt_SUPPORTED
-#define PNG_bKGD_SUPPORTED
-#define PNG_cHRM_SUPPORTED
-#define PNG_eXIf_SUPPORTED
-#define PNG_gAMA_SUPPORTED
-#define PNG_hIST_SUPPORTED
-#define PNG_iCCP_SUPPORTED
-#define PNG_iTXt_SUPPORTED
-#define PNG_oFFs_SUPPORTED
-#define PNG_pCAL_SUPPORTED
-#define PNG_pHYs_SUPPORTED
-#define PNG_sBIT_SUPPORTED
-#define PNG_sCAL_SUPPORTED
-#define PNG_sPLT_SUPPORTED
-#define PNG_sRGB_SUPPORTED
-#define PNG_tEXt_SUPPORTED
-#define PNG_tIME_SUPPORTED
-#define PNG_tRNS_SUPPORTED
-#define PNG_zTXt_SUPPORTED
-/* end of options */
-/* settings */
-#define PNG_API_RULE 0
-#define PNG_ARM_NEON_OPT 2
-#define PNG_DEFAULT_READ_MACROS 1
-#define PNG_GAMMA_THRESHOLD_FIXED 5000
-#define PNG_IDAT_READ_SIZE PNG_ZBUF_SIZE
-#define PNG_INFLATE_BUF_SIZE 1024
-#define PNG_LINKAGE_API extern
-#define PNG_LINKAGE_CALLBACK extern
-#define PNG_LINKAGE_DATA extern
-#define PNG_LINKAGE_FUNCTION extern
-#define PNG_MAX_GAMMA_8 11
-#define PNG_QUANTIZE_BLUE_BITS 5
-#define PNG_QUANTIZE_GREEN_BITS 5
-#define PNG_QUANTIZE_RED_BITS 5
-#define PNG_TEXT_Z_DEFAULT_COMPRESSION (-1)
-#define PNG_TEXT_Z_DEFAULT_STRATEGY 0
-#define PNG_USER_CHUNK_CACHE_MAX 1000
-#define PNG_USER_CHUNK_MALLOC_MAX 8000000
-#define PNG_USER_HEIGHT_MAX 1000000
-#define PNG_USER_WIDTH_MAX 1000000
-#define PNG_ZBUF_SIZE 8192
-#define PNG_ZLIB_VERNUM 0x12b0
-#define PNG_Z_DEFAULT_COMPRESSION (-1)
-#define PNG_Z_DEFAULT_NOFILTER_STRATEGY 0
-#define PNG_Z_DEFAULT_STRATEGY 1
-#define PNG_sCAL_PRECISION 5
-#define PNG_sRGB_PROFILE_CHECKS 2
-/* end of settings */
-#endif /* PNGLCONF_H */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngmem.c b/3rdparty/libpng/libpng-1.6.37/pngmem.c
deleted file mode 100644
index 09ed9c1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngmem.c
+++ /dev/null
@@ -1,284 +0,0 @@
-
-/* pngmem.c - stub functions for memory allocation
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2014,2016 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * This file provides a location for all memory allocation. Users who
- * need special memory handling are expected to supply replacement
- * functions for png_malloc() and png_free(), and to use
- * png_create_read_struct_2() and png_create_write_struct_2() to
- * identify the replacement functions.
- */
-
-#include "pngpriv.h"
-
-#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
-/* Free a png_struct */
-void /* PRIVATE */
-png_destroy_png_struct(png_structrp png_ptr)
-{
- if (png_ptr != NULL)
- {
- /* png_free might call png_error and may certainly call
- * png_get_mem_ptr, so fake a temporary png_struct to support this.
- */
- png_struct dummy_struct = *png_ptr;
- memset(png_ptr, 0, (sizeof *png_ptr));
- png_free(&dummy_struct, png_ptr);
-
-# ifdef PNG_SETJMP_SUPPORTED
- /* We may have a jmp_buf left to deallocate. */
- png_free_jmpbuf(&dummy_struct);
-# endif
- }
-}
-
-/* Allocate memory. For reasonable files, size should never exceed
- * 64K. However, zlib may allocate more than 64K if you don't tell
- * it not to. See zconf.h and png.h for more information. zlib does
- * need to allocate exactly 64K, so whatever you call here must
- * have the ability to do that.
- */
-PNG_FUNCTION(png_voidp,PNGAPI
-png_calloc,(png_const_structrp png_ptr, png_alloc_size_t size),PNG_ALLOCATED)
-{
- png_voidp ret;
-
- ret = png_malloc(png_ptr, size);
-
- if (ret != NULL)
- memset(ret, 0, size);
-
- return ret;
-}
-
-/* png_malloc_base, an internal function added at libpng 1.6.0, does the work of
- * allocating memory, taking into account limits and PNG_USER_MEM_SUPPORTED.
- * Checking and error handling must happen outside this routine; it returns NULL
- * if the allocation cannot be done (for any reason.)
- */
-PNG_FUNCTION(png_voidp /* PRIVATE */,
-png_malloc_base,(png_const_structrp png_ptr, png_alloc_size_t size),
- PNG_ALLOCATED)
-{
- /* Moved to png_malloc_base from png_malloc_default in 1.6.0; the DOS
- * allocators have also been removed in 1.6.0, so any 16-bit system now has
- * to implement a user memory handler. This checks to be sure it isn't
- * called with big numbers.
- */
-#ifndef PNG_USER_MEM_SUPPORTED
- PNG_UNUSED(png_ptr)
-#endif
-
- /* Some compilers complain that this is always true. However, it
- * can be false when integer overflow happens.
- */
- if (size > 0 && size <= PNG_SIZE_MAX
-# ifdef PNG_MAX_MALLOC_64K
- && size <= 65536U
-# endif
- )
- {
-#ifdef PNG_USER_MEM_SUPPORTED
- if (png_ptr != NULL && png_ptr->malloc_fn != NULL)
- return png_ptr->malloc_fn(png_constcast(png_structrp,png_ptr), size);
-
- else
-#endif
- return malloc((size_t)size); /* checked for truncation above */
- }
-
- else
- return NULL;
-}
-
-#if defined(PNG_TEXT_SUPPORTED) || defined(PNG_sPLT_SUPPORTED) ||\
- defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED)
-/* This is really here only to work round a spurious warning in GCC 4.6 and 4.7
- * that arises because of the checks in png_realloc_array that are repeated in
- * png_malloc_array.
- */
-static png_voidp
-png_malloc_array_checked(png_const_structrp png_ptr, int nelements,
- size_t element_size)
-{
- png_alloc_size_t req = (png_alloc_size_t)nelements; /* known to be > 0 */
-
- if (req <= PNG_SIZE_MAX/element_size)
- return png_malloc_base(png_ptr, req * element_size);
-
- /* The failure case when the request is too large */
- return NULL;
-}
-
-PNG_FUNCTION(png_voidp /* PRIVATE */,
-png_malloc_array,(png_const_structrp png_ptr, int nelements,
- size_t element_size),PNG_ALLOCATED)
-{
- if (nelements <= 0 || element_size == 0)
- png_error(png_ptr, "internal error: array alloc");
-
- return png_malloc_array_checked(png_ptr, nelements, element_size);
-}
-
-PNG_FUNCTION(png_voidp /* PRIVATE */,
-png_realloc_array,(png_const_structrp png_ptr, png_const_voidp old_array,
- int old_elements, int add_elements, size_t element_size),PNG_ALLOCATED)
-{
- /* These are internal errors: */
- if (add_elements <= 0 || element_size == 0 || old_elements < 0 ||
- (old_array == NULL && old_elements > 0))
- png_error(png_ptr, "internal error: array realloc");
-
- /* Check for overflow on the elements count (so the caller does not have to
- * check.)
- */
- if (add_elements <= INT_MAX - old_elements)
- {
- png_voidp new_array = png_malloc_array_checked(png_ptr,
- old_elements+add_elements, element_size);
-
- if (new_array != NULL)
- {
- /* Because png_malloc_array worked the size calculations below cannot
- * overflow.
- */
- if (old_elements > 0)
- memcpy(new_array, old_array, element_size*(unsigned)old_elements);
-
- memset((char*)new_array + element_size*(unsigned)old_elements, 0,
- element_size*(unsigned)add_elements);
-
- return new_array;
- }
- }
-
- return NULL; /* error */
-}
-#endif /* TEXT || sPLT || STORE_UNKNOWN_CHUNKS */
-
-/* Various functions that have different error handling are derived from this.
- * png_malloc always exists, but if PNG_USER_MEM_SUPPORTED is defined a separate
- * function png_malloc_default is also provided.
- */
-PNG_FUNCTION(png_voidp,PNGAPI
-png_malloc,(png_const_structrp png_ptr, png_alloc_size_t size),PNG_ALLOCATED)
-{
- png_voidp ret;
-
- if (png_ptr == NULL)
- return NULL;
-
- ret = png_malloc_base(png_ptr, size);
-
- if (ret == NULL)
- png_error(png_ptr, "Out of memory"); /* 'm' means png_malloc */
-
- return ret;
-}
-
-#ifdef PNG_USER_MEM_SUPPORTED
-PNG_FUNCTION(png_voidp,PNGAPI
-png_malloc_default,(png_const_structrp png_ptr, png_alloc_size_t size),
- PNG_ALLOCATED PNG_DEPRECATED)
-{
- png_voidp ret;
-
- if (png_ptr == NULL)
- return NULL;
-
- /* Passing 'NULL' here bypasses the application provided memory handler. */
- ret = png_malloc_base(NULL/*use malloc*/, size);
-
- if (ret == NULL)
- png_error(png_ptr, "Out of Memory"); /* 'M' means png_malloc_default */
-
- return ret;
-}
-#endif /* USER_MEM */
-
-/* This function was added at libpng version 1.2.3. The png_malloc_warn()
- * function will issue a png_warning and return NULL instead of issuing a
- * png_error, if it fails to allocate the requested memory.
- */
-PNG_FUNCTION(png_voidp,PNGAPI
-png_malloc_warn,(png_const_structrp png_ptr, png_alloc_size_t size),
- PNG_ALLOCATED)
-{
- if (png_ptr != NULL)
- {
- png_voidp ret = png_malloc_base(png_ptr, size);
-
- if (ret != NULL)
- return ret;
-
- png_warning(png_ptr, "Out of memory");
- }
-
- return NULL;
-}
-
-/* Free a pointer allocated by png_malloc(). If ptr is NULL, return
- * without taking any action.
- */
-void PNGAPI
-png_free(png_const_structrp png_ptr, png_voidp ptr)
-{
- if (png_ptr == NULL || ptr == NULL)
- return;
-
-#ifdef PNG_USER_MEM_SUPPORTED
- if (png_ptr->free_fn != NULL)
- png_ptr->free_fn(png_constcast(png_structrp,png_ptr), ptr);
-
- else
- png_free_default(png_ptr, ptr);
-}
-
-PNG_FUNCTION(void,PNGAPI
-png_free_default,(png_const_structrp png_ptr, png_voidp ptr),PNG_DEPRECATED)
-{
- if (png_ptr == NULL || ptr == NULL)
- return;
-#endif /* USER_MEM */
-
- free(ptr);
-}
-
-#ifdef PNG_USER_MEM_SUPPORTED
-/* This function is called when the application wants to use another method
- * of allocating and freeing memory.
- */
-void PNGAPI
-png_set_mem_fn(png_structrp png_ptr, png_voidp mem_ptr, png_malloc_ptr
- malloc_fn, png_free_ptr free_fn)
-{
- if (png_ptr != NULL)
- {
- png_ptr->mem_ptr = mem_ptr;
- png_ptr->malloc_fn = malloc_fn;
- png_ptr->free_fn = free_fn;
- }
-}
-
-/* This function returns a pointer to the mem_ptr associated with the user
- * functions. The application should free any memory associated with this
- * pointer before png_write_destroy and png_read_destroy are called.
- */
-png_voidp PNGAPI
-png_get_mem_ptr(png_const_structrp png_ptr)
-{
- if (png_ptr == NULL)
- return NULL;
-
- return png_ptr->mem_ptr;
-}
-#endif /* USER_MEM */
-#endif /* READ || WRITE */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngmem.lo b/3rdparty/libpng/libpng-1.6.37/pngmem.lo
deleted file mode 100644
index ce0768a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngmem.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# pngmem.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/pngmem.o'
-
-# Name of the non-PIC object
-non_pic_object='pngmem.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/pngmem.o b/3rdparty/libpng/libpng-1.6.37/pngmem.o
deleted file mode 100644
index 8e203d2..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngmem.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngnow.png b/3rdparty/libpng/libpng-1.6.37/pngnow.png
deleted file mode 100644
index 82793eb..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngnow.png
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngpread.c b/3rdparty/libpng/libpng-1.6.37/pngpread.c
deleted file mode 100644
index e283627..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngpread.c
+++ /dev/null
@@ -1,1096 +0,0 @@
-
-/* pngpread.c - read a png file in push mode
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#include "pngpriv.h"
-
-#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
-
-/* Push model modes */
-#define PNG_READ_SIG_MODE 0
-#define PNG_READ_CHUNK_MODE 1
-#define PNG_READ_IDAT_MODE 2
-#define PNG_READ_tEXt_MODE 4
-#define PNG_READ_zTXt_MODE 5
-#define PNG_READ_DONE_MODE 6
-#define PNG_READ_iTXt_MODE 7
-#define PNG_ERROR_MODE 8
-
-#define PNG_PUSH_SAVE_BUFFER_IF_FULL \
-if (png_ptr->push_length + 4 > png_ptr->buffer_size) \
- { png_push_save_buffer(png_ptr); return; }
-#define PNG_PUSH_SAVE_BUFFER_IF_LT(N) \
-if (png_ptr->buffer_size < N) \
- { png_push_save_buffer(png_ptr); return; }
-
-void PNGAPI
-png_process_data(png_structrp png_ptr, png_inforp info_ptr,
- png_bytep buffer, size_t buffer_size)
-{
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- png_push_restore_buffer(png_ptr, buffer, buffer_size);
-
- while (png_ptr->buffer_size)
- {
- png_process_some_data(png_ptr, info_ptr);
- }
-}
-
-size_t PNGAPI
-png_process_data_pause(png_structrp png_ptr, int save)
-{
- if (png_ptr != NULL)
- {
- /* It's easiest for the caller if we do the save; then the caller doesn't
- * have to supply the same data again:
- */
- if (save != 0)
- png_push_save_buffer(png_ptr);
- else
- {
- /* This includes any pending saved bytes: */
- size_t remaining = png_ptr->buffer_size;
- png_ptr->buffer_size = 0;
-
- /* So subtract the saved buffer size, unless all the data
- * is actually 'saved', in which case we just return 0
- */
- if (png_ptr->save_buffer_size < remaining)
- return remaining - png_ptr->save_buffer_size;
- }
- }
-
- return 0;
-}
-
-png_uint_32 PNGAPI
-png_process_data_skip(png_structrp png_ptr)
-{
-/* TODO: Deprecate and remove this API.
- * Somewhere the implementation of this seems to have been lost,
- * or abandoned. It was only to support some internal back-door access
- * to png_struct) in libpng-1.4.x.
- */
- png_app_warning(png_ptr,
-"png_process_data_skip is not implemented in any current version of libpng");
- return 0;
-}
-
-/* What we do with the incoming data depends on what we were previously
- * doing before we ran out of data...
- */
-void /* PRIVATE */
-png_process_some_data(png_structrp png_ptr, png_inforp info_ptr)
-{
- if (png_ptr == NULL)
- return;
-
- switch (png_ptr->process_mode)
- {
- case PNG_READ_SIG_MODE:
- {
- png_push_read_sig(png_ptr, info_ptr);
- break;
- }
-
- case PNG_READ_CHUNK_MODE:
- {
- png_push_read_chunk(png_ptr, info_ptr);
- break;
- }
-
- case PNG_READ_IDAT_MODE:
- {
- png_push_read_IDAT(png_ptr);
- break;
- }
-
- default:
- {
- png_ptr->buffer_size = 0;
- break;
- }
- }
-}
-
-/* Read any remaining signature bytes from the stream and compare them with
- * the correct PNG signature. It is possible that this routine is called
- * with bytes already read from the signature, either because they have been
- * checked by the calling application, or because of multiple calls to this
- * routine.
- */
-void /* PRIVATE */
-png_push_read_sig(png_structrp png_ptr, png_inforp info_ptr)
-{
- size_t num_checked = png_ptr->sig_bytes; /* SAFE, does not exceed 8 */
- size_t num_to_check = 8 - num_checked;
-
- if (png_ptr->buffer_size < num_to_check)
- {
- num_to_check = png_ptr->buffer_size;
- }
-
- png_push_fill_buffer(png_ptr, &(info_ptr->signature[num_checked]),
- num_to_check);
- png_ptr->sig_bytes = (png_byte)(png_ptr->sig_bytes + num_to_check);
-
- if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check))
- {
- if (num_checked < 4 &&
- png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4))
- png_error(png_ptr, "Not a PNG file");
-
- else
- png_error(png_ptr, "PNG file corrupted by ASCII conversion");
- }
- else
- {
- if (png_ptr->sig_bytes >= 8)
- {
- png_ptr->process_mode = PNG_READ_CHUNK_MODE;
- }
- }
-}
-
-void /* PRIVATE */
-png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr)
-{
- png_uint_32 chunk_name;
-#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
- int keep; /* unknown handling method */
-#endif
-
- /* First we make sure we have enough data for the 4-byte chunk name
- * and the 4-byte chunk length before proceeding with decoding the
- * chunk data. To fully decode each of these chunks, we also make
- * sure we have enough data in the buffer for the 4-byte CRC at the
- * end of every chunk (except IDAT, which is handled separately).
- */
- if ((png_ptr->mode & PNG_HAVE_CHUNK_HEADER) == 0)
- {
- png_byte chunk_length[4];
- png_byte chunk_tag[4];
-
- PNG_PUSH_SAVE_BUFFER_IF_LT(8)
- png_push_fill_buffer(png_ptr, chunk_length, 4);
- png_ptr->push_length = png_get_uint_31(png_ptr, chunk_length);
- png_reset_crc(png_ptr);
- png_crc_read(png_ptr, chunk_tag, 4);
- png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(chunk_tag);
- png_check_chunk_name(png_ptr, png_ptr->chunk_name);
- png_check_chunk_length(png_ptr, png_ptr->push_length);
- png_ptr->mode |= PNG_HAVE_CHUNK_HEADER;
- }
-
- chunk_name = png_ptr->chunk_name;
-
- if (chunk_name == png_IDAT)
- {
- if ((png_ptr->mode & PNG_AFTER_IDAT) != 0)
- png_ptr->mode |= PNG_HAVE_CHUNK_AFTER_IDAT;
-
- /* If we reach an IDAT chunk, this means we have read all of the
- * header chunks, and we can start reading the image (or if this
- * is called after the image has been read - we have an error).
- */
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_error(png_ptr, "Missing IHDR before IDAT");
-
- else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
- (png_ptr->mode & PNG_HAVE_PLTE) == 0)
- png_error(png_ptr, "Missing PLTE before IDAT");
-
- png_ptr->process_mode = PNG_READ_IDAT_MODE;
-
- if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
- if ((png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT) == 0)
- if (png_ptr->push_length == 0)
- return;
-
- png_ptr->mode |= PNG_HAVE_IDAT;
-
- if ((png_ptr->mode & PNG_AFTER_IDAT) != 0)
- png_benign_error(png_ptr, "Too many IDATs found");
- }
-
- if (chunk_name == png_IHDR)
- {
- if (png_ptr->push_length != 13)
- png_error(png_ptr, "Invalid IHDR length");
-
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_IHDR(png_ptr, info_ptr, png_ptr->push_length);
- }
-
- else if (chunk_name == png_IEND)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_IEND(png_ptr, info_ptr, png_ptr->push_length);
-
- png_ptr->process_mode = PNG_READ_DONE_MODE;
- png_push_have_end(png_ptr, info_ptr);
- }
-
-#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
- else if ((keep = png_chunk_unknown_handling(png_ptr, chunk_name)) != 0)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length, keep);
-
- if (chunk_name == png_PLTE)
- png_ptr->mode |= PNG_HAVE_PLTE;
- }
-#endif
-
- else if (chunk_name == png_PLTE)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_PLTE(png_ptr, info_ptr, png_ptr->push_length);
- }
-
- else if (chunk_name == png_IDAT)
- {
- png_ptr->idat_size = png_ptr->push_length;
- png_ptr->process_mode = PNG_READ_IDAT_MODE;
- png_push_have_info(png_ptr, info_ptr);
- png_ptr->zstream.avail_out =
- (uInt) PNG_ROWBYTES(png_ptr->pixel_depth,
- png_ptr->iwidth) + 1;
- png_ptr->zstream.next_out = png_ptr->row_buf;
- return;
- }
-
-#ifdef PNG_READ_gAMA_SUPPORTED
- else if (png_ptr->chunk_name == png_gAMA)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_gAMA(png_ptr, info_ptr, png_ptr->push_length);
- }
-
-#endif
-#ifdef PNG_READ_sBIT_SUPPORTED
- else if (png_ptr->chunk_name == png_sBIT)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_sBIT(png_ptr, info_ptr, png_ptr->push_length);
- }
-
-#endif
-#ifdef PNG_READ_cHRM_SUPPORTED
- else if (png_ptr->chunk_name == png_cHRM)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_cHRM(png_ptr, info_ptr, png_ptr->push_length);
- }
-
-#endif
-#ifdef PNG_READ_sRGB_SUPPORTED
- else if (chunk_name == png_sRGB)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_sRGB(png_ptr, info_ptr, png_ptr->push_length);
- }
-
-#endif
-#ifdef PNG_READ_iCCP_SUPPORTED
- else if (png_ptr->chunk_name == png_iCCP)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_iCCP(png_ptr, info_ptr, png_ptr->push_length);
- }
-
-#endif
-#ifdef PNG_READ_sPLT_SUPPORTED
- else if (chunk_name == png_sPLT)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_sPLT(png_ptr, info_ptr, png_ptr->push_length);
- }
-
-#endif
-#ifdef PNG_READ_tRNS_SUPPORTED
- else if (chunk_name == png_tRNS)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_tRNS(png_ptr, info_ptr, png_ptr->push_length);
- }
-
-#endif
-#ifdef PNG_READ_bKGD_SUPPORTED
- else if (chunk_name == png_bKGD)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_bKGD(png_ptr, info_ptr, png_ptr->push_length);
- }
-
-#endif
-#ifdef PNG_READ_hIST_SUPPORTED
- else if (chunk_name == png_hIST)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_hIST(png_ptr, info_ptr, png_ptr->push_length);
- }
-
-#endif
-#ifdef PNG_READ_pHYs_SUPPORTED
- else if (chunk_name == png_pHYs)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_pHYs(png_ptr, info_ptr, png_ptr->push_length);
- }
-
-#endif
-#ifdef PNG_READ_oFFs_SUPPORTED
- else if (chunk_name == png_oFFs)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_oFFs(png_ptr, info_ptr, png_ptr->push_length);
- }
-#endif
-
-#ifdef PNG_READ_pCAL_SUPPORTED
- else if (chunk_name == png_pCAL)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_pCAL(png_ptr, info_ptr, png_ptr->push_length);
- }
-
-#endif
-#ifdef PNG_READ_sCAL_SUPPORTED
- else if (chunk_name == png_sCAL)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_sCAL(png_ptr, info_ptr, png_ptr->push_length);
- }
-
-#endif
-#ifdef PNG_READ_tIME_SUPPORTED
- else if (chunk_name == png_tIME)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_tIME(png_ptr, info_ptr, png_ptr->push_length);
- }
-
-#endif
-#ifdef PNG_READ_tEXt_SUPPORTED
- else if (chunk_name == png_tEXt)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_tEXt(png_ptr, info_ptr, png_ptr->push_length);
- }
-
-#endif
-#ifdef PNG_READ_zTXt_SUPPORTED
- else if (chunk_name == png_zTXt)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_zTXt(png_ptr, info_ptr, png_ptr->push_length);
- }
-
-#endif
-#ifdef PNG_READ_iTXt_SUPPORTED
- else if (chunk_name == png_iTXt)
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_iTXt(png_ptr, info_ptr, png_ptr->push_length);
- }
-#endif
-
- else
- {
- PNG_PUSH_SAVE_BUFFER_IF_FULL
- png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length,
- PNG_HANDLE_CHUNK_AS_DEFAULT);
- }
-
- png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER;
-}
-
-void PNGCBAPI
-png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, size_t length)
-{
- png_bytep ptr;
-
- if (png_ptr == NULL)
- return;
-
- ptr = buffer;
- if (png_ptr->save_buffer_size != 0)
- {
- size_t save_size;
-
- if (length < png_ptr->save_buffer_size)
- save_size = length;
-
- else
- save_size = png_ptr->save_buffer_size;
-
- memcpy(ptr, png_ptr->save_buffer_ptr, save_size);
- length -= save_size;
- ptr += save_size;
- png_ptr->buffer_size -= save_size;
- png_ptr->save_buffer_size -= save_size;
- png_ptr->save_buffer_ptr += save_size;
- }
- if (length != 0 && png_ptr->current_buffer_size != 0)
- {
- size_t save_size;
-
- if (length < png_ptr->current_buffer_size)
- save_size = length;
-
- else
- save_size = png_ptr->current_buffer_size;
-
- memcpy(ptr, png_ptr->current_buffer_ptr, save_size);
- png_ptr->buffer_size -= save_size;
- png_ptr->current_buffer_size -= save_size;
- png_ptr->current_buffer_ptr += save_size;
- }
-}
-
-void /* PRIVATE */
-png_push_save_buffer(png_structrp png_ptr)
-{
- if (png_ptr->save_buffer_size != 0)
- {
- if (png_ptr->save_buffer_ptr != png_ptr->save_buffer)
- {
- size_t i, istop;
- png_bytep sp;
- png_bytep dp;
-
- istop = png_ptr->save_buffer_size;
- for (i = 0, sp = png_ptr->save_buffer_ptr, dp = png_ptr->save_buffer;
- i < istop; i++, sp++, dp++)
- {
- *dp = *sp;
- }
- }
- }
- if (png_ptr->save_buffer_size + png_ptr->current_buffer_size >
- png_ptr->save_buffer_max)
- {
- size_t new_max;
- png_bytep old_buffer;
-
- if (png_ptr->save_buffer_size > PNG_SIZE_MAX -
- (png_ptr->current_buffer_size + 256))
- {
- png_error(png_ptr, "Potential overflow of save_buffer");
- }
-
- new_max = png_ptr->save_buffer_size + png_ptr->current_buffer_size + 256;
- old_buffer = png_ptr->save_buffer;
- png_ptr->save_buffer = (png_bytep)png_malloc_warn(png_ptr,
- (size_t)new_max);
-
- if (png_ptr->save_buffer == NULL)
- {
- png_free(png_ptr, old_buffer);
- png_error(png_ptr, "Insufficient memory for save_buffer");
- }
-
- if (old_buffer)
- memcpy(png_ptr->save_buffer, old_buffer, png_ptr->save_buffer_size);
- else if (png_ptr->save_buffer_size)
- png_error(png_ptr, "save_buffer error");
- png_free(png_ptr, old_buffer);
- png_ptr->save_buffer_max = new_max;
- }
- if (png_ptr->current_buffer_size)
- {
- memcpy(png_ptr->save_buffer + png_ptr->save_buffer_size,
- png_ptr->current_buffer_ptr, png_ptr->current_buffer_size);
- png_ptr->save_buffer_size += png_ptr->current_buffer_size;
- png_ptr->current_buffer_size = 0;
- }
- png_ptr->save_buffer_ptr = png_ptr->save_buffer;
- png_ptr->buffer_size = 0;
-}
-
-void /* PRIVATE */
-png_push_restore_buffer(png_structrp png_ptr, png_bytep buffer,
- size_t buffer_length)
-{
- png_ptr->current_buffer = buffer;
- png_ptr->current_buffer_size = buffer_length;
- png_ptr->buffer_size = buffer_length + png_ptr->save_buffer_size;
- png_ptr->current_buffer_ptr = png_ptr->current_buffer;
-}
-
-void /* PRIVATE */
-png_push_read_IDAT(png_structrp png_ptr)
-{
- if ((png_ptr->mode & PNG_HAVE_CHUNK_HEADER) == 0)
- {
- png_byte chunk_length[4];
- png_byte chunk_tag[4];
-
- /* TODO: this code can be commoned up with the same code in push_read */
- PNG_PUSH_SAVE_BUFFER_IF_LT(8)
- png_push_fill_buffer(png_ptr, chunk_length, 4);
- png_ptr->push_length = png_get_uint_31(png_ptr, chunk_length);
- png_reset_crc(png_ptr);
- png_crc_read(png_ptr, chunk_tag, 4);
- png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(chunk_tag);
- png_ptr->mode |= PNG_HAVE_CHUNK_HEADER;
-
- if (png_ptr->chunk_name != png_IDAT)
- {
- png_ptr->process_mode = PNG_READ_CHUNK_MODE;
-
- if ((png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED) == 0)
- png_error(png_ptr, "Not enough compressed data");
-
- return;
- }
-
- png_ptr->idat_size = png_ptr->push_length;
- }
-
- if (png_ptr->idat_size != 0 && png_ptr->save_buffer_size != 0)
- {
- size_t save_size = png_ptr->save_buffer_size;
- png_uint_32 idat_size = png_ptr->idat_size;
-
- /* We want the smaller of 'idat_size' and 'current_buffer_size', but they
- * are of different types and we don't know which variable has the fewest
- * bits. Carefully select the smaller and cast it to the type of the
- * larger - this cannot overflow. Do not cast in the following test - it
- * will break on either 16-bit or 64-bit platforms.
- */
- if (idat_size < save_size)
- save_size = (size_t)idat_size;
-
- else
- idat_size = (png_uint_32)save_size;
-
- png_calculate_crc(png_ptr, png_ptr->save_buffer_ptr, save_size);
-
- png_process_IDAT_data(png_ptr, png_ptr->save_buffer_ptr, save_size);
-
- png_ptr->idat_size -= idat_size;
- png_ptr->buffer_size -= save_size;
- png_ptr->save_buffer_size -= save_size;
- png_ptr->save_buffer_ptr += save_size;
- }
-
- if (png_ptr->idat_size != 0 && png_ptr->current_buffer_size != 0)
- {
- size_t save_size = png_ptr->current_buffer_size;
- png_uint_32 idat_size = png_ptr->idat_size;
-
- /* We want the smaller of 'idat_size' and 'current_buffer_size', but they
- * are of different types and we don't know which variable has the fewest
- * bits. Carefully select the smaller and cast it to the type of the
- * larger - this cannot overflow.
- */
- if (idat_size < save_size)
- save_size = (size_t)idat_size;
-
- else
- idat_size = (png_uint_32)save_size;
-
- png_calculate_crc(png_ptr, png_ptr->current_buffer_ptr, save_size);
-
- png_process_IDAT_data(png_ptr, png_ptr->current_buffer_ptr, save_size);
-
- png_ptr->idat_size -= idat_size;
- png_ptr->buffer_size -= save_size;
- png_ptr->current_buffer_size -= save_size;
- png_ptr->current_buffer_ptr += save_size;
- }
-
- if (png_ptr->idat_size == 0)
- {
- PNG_PUSH_SAVE_BUFFER_IF_LT(4)
- png_crc_finish(png_ptr, 0);
- png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER;
- png_ptr->mode |= PNG_AFTER_IDAT;
- png_ptr->zowner = 0;
- }
-}
-
-void /* PRIVATE */
-png_process_IDAT_data(png_structrp png_ptr, png_bytep buffer,
- size_t buffer_length)
-{
- /* The caller checks for a non-zero buffer length. */
- if (!(buffer_length > 0) || buffer == NULL)
- png_error(png_ptr, "No IDAT data (internal error)");
-
- /* This routine must process all the data it has been given
- * before returning, calling the row callback as required to
- * handle the uncompressed results.
- */
- png_ptr->zstream.next_in = buffer;
- /* TODO: WARNING: TRUNCATION ERROR: DANGER WILL ROBINSON: */
- png_ptr->zstream.avail_in = (uInt)buffer_length;
-
- /* Keep going until the decompressed data is all processed
- * or the stream marked as finished.
- */
- while (png_ptr->zstream.avail_in > 0 &&
- (png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED) == 0)
- {
- int ret;
-
- /* We have data for zlib, but we must check that zlib
- * has someplace to put the results. It doesn't matter
- * if we don't expect any results -- it may be the input
- * data is just the LZ end code.
- */
- if (!(png_ptr->zstream.avail_out > 0))
- {
- /* TODO: WARNING: TRUNCATION ERROR: DANGER WILL ROBINSON: */
- png_ptr->zstream.avail_out = (uInt)(PNG_ROWBYTES(png_ptr->pixel_depth,
- png_ptr->iwidth) + 1);
-
- png_ptr->zstream.next_out = png_ptr->row_buf;
- }
-
- /* Using Z_SYNC_FLUSH here means that an unterminated
- * LZ stream (a stream with a missing end code) can still
- * be handled, otherwise (Z_NO_FLUSH) a future zlib
- * implementation might defer output and therefore
- * change the current behavior (see comments in inflate.c
- * for why this doesn't happen at present with zlib 1.2.5).
- */
- ret = PNG_INFLATE(png_ptr, Z_SYNC_FLUSH);
-
- /* Check for any failure before proceeding. */
- if (ret != Z_OK && ret != Z_STREAM_END)
- {
- /* Terminate the decompression. */
- png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED;
- png_ptr->zowner = 0;
-
- /* This may be a truncated stream (missing or
- * damaged end code). Treat that as a warning.
- */
- if (png_ptr->row_number >= png_ptr->num_rows ||
- png_ptr->pass > 6)
- png_warning(png_ptr, "Truncated compressed data in IDAT");
-
- else
- {
- if (ret == Z_DATA_ERROR)
- png_benign_error(png_ptr, "IDAT: ADLER32 checksum mismatch");
- else
- png_error(png_ptr, "Decompression error in IDAT");
- }
-
- /* Skip the check on unprocessed input */
- return;
- }
-
- /* Did inflate output any data? */
- if (png_ptr->zstream.next_out != png_ptr->row_buf)
- {
- /* Is this unexpected data after the last row?
- * If it is, artificially terminate the LZ output
- * here.
- */
- if (png_ptr->row_number >= png_ptr->num_rows ||
- png_ptr->pass > 6)
- {
- /* Extra data. */
- png_warning(png_ptr, "Extra compressed data in IDAT");
- png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED;
- png_ptr->zowner = 0;
-
- /* Do no more processing; skip the unprocessed
- * input check below.
- */
- return;
- }
-
- /* Do we have a complete row? */
- if (png_ptr->zstream.avail_out == 0)
- png_push_process_row(png_ptr);
- }
-
- /* And check for the end of the stream. */
- if (ret == Z_STREAM_END)
- png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED;
- }
-
- /* All the data should have been processed, if anything
- * is left at this point we have bytes of IDAT data
- * after the zlib end code.
- */
- if (png_ptr->zstream.avail_in > 0)
- png_warning(png_ptr, "Extra compression data in IDAT");
-}
-
-void /* PRIVATE */
-png_push_process_row(png_structrp png_ptr)
-{
- /* 1.5.6: row_info moved out of png_struct to a local here. */
- png_row_info row_info;
-
- row_info.width = png_ptr->iwidth; /* NOTE: width of current interlaced row */
- row_info.color_type = png_ptr->color_type;
- row_info.bit_depth = png_ptr->bit_depth;
- row_info.channels = png_ptr->channels;
- row_info.pixel_depth = png_ptr->pixel_depth;
- row_info.rowbytes = PNG_ROWBYTES(row_info.pixel_depth, row_info.width);
-
- if (png_ptr->row_buf[0] > PNG_FILTER_VALUE_NONE)
- {
- if (png_ptr->row_buf[0] < PNG_FILTER_VALUE_LAST)
- png_read_filter_row(png_ptr, &row_info, png_ptr->row_buf + 1,
- png_ptr->prev_row + 1, png_ptr->row_buf[0]);
- else
- png_error(png_ptr, "bad adaptive filter value");
- }
-
- /* libpng 1.5.6: the following line was copying png_ptr->rowbytes before
- * 1.5.6, while the buffer really is this big in current versions of libpng
- * it may not be in the future, so this was changed just to copy the
- * interlaced row count:
- */
- memcpy(png_ptr->prev_row, png_ptr->row_buf, row_info.rowbytes + 1);
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
- if (png_ptr->transformations != 0)
- png_do_read_transformations(png_ptr, &row_info);
-#endif
-
- /* The transformed pixel depth should match the depth now in row_info. */
- if (png_ptr->transformed_pixel_depth == 0)
- {
- png_ptr->transformed_pixel_depth = row_info.pixel_depth;
- if (row_info.pixel_depth > png_ptr->maximum_pixel_depth)
- png_error(png_ptr, "progressive row overflow");
- }
-
- else if (png_ptr->transformed_pixel_depth != row_info.pixel_depth)
- png_error(png_ptr, "internal progressive row size calculation error");
-
-
-#ifdef PNG_READ_INTERLACING_SUPPORTED
- /* Expand interlaced rows to full size */
- if (png_ptr->interlaced != 0 &&
- (png_ptr->transformations & PNG_INTERLACE) != 0)
- {
- if (png_ptr->pass < 6)
- png_do_read_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass,
- png_ptr->transformations);
-
- switch (png_ptr->pass)
- {
- case 0:
- {
- int i;
- for (i = 0; i < 8 && png_ptr->pass == 0; i++)
- {
- png_push_have_row(png_ptr, png_ptr->row_buf + 1);
- png_read_push_finish_row(png_ptr); /* Updates png_ptr->pass */
- }
-
- if (png_ptr->pass == 2) /* Pass 1 might be empty */
- {
- for (i = 0; i < 4 && png_ptr->pass == 2; i++)
- {
- png_push_have_row(png_ptr, NULL);
- png_read_push_finish_row(png_ptr);
- }
- }
-
- if (png_ptr->pass == 4 && png_ptr->height <= 4)
- {
- for (i = 0; i < 2 && png_ptr->pass == 4; i++)
- {
- png_push_have_row(png_ptr, NULL);
- png_read_push_finish_row(png_ptr);
- }
- }
-
- if (png_ptr->pass == 6 && png_ptr->height <= 4)
- {
- png_push_have_row(png_ptr, NULL);
- png_read_push_finish_row(png_ptr);
- }
-
- break;
- }
-
- case 1:
- {
- int i;
- for (i = 0; i < 8 && png_ptr->pass == 1; i++)
- {
- png_push_have_row(png_ptr, png_ptr->row_buf + 1);
- png_read_push_finish_row(png_ptr);
- }
-
- if (png_ptr->pass == 2) /* Skip top 4 generated rows */
- {
- for (i = 0; i < 4 && png_ptr->pass == 2; i++)
- {
- png_push_have_row(png_ptr, NULL);
- png_read_push_finish_row(png_ptr);
- }
- }
-
- break;
- }
-
- case 2:
- {
- int i;
-
- for (i = 0; i < 4 && png_ptr->pass == 2; i++)
- {
- png_push_have_row(png_ptr, png_ptr->row_buf + 1);
- png_read_push_finish_row(png_ptr);
- }
-
- for (i = 0; i < 4 && png_ptr->pass == 2; i++)
- {
- png_push_have_row(png_ptr, NULL);
- png_read_push_finish_row(png_ptr);
- }
-
- if (png_ptr->pass == 4) /* Pass 3 might be empty */
- {
- for (i = 0; i < 2 && png_ptr->pass == 4; i++)
- {
- png_push_have_row(png_ptr, NULL);
- png_read_push_finish_row(png_ptr);
- }
- }
-
- break;
- }
-
- case 3:
- {
- int i;
-
- for (i = 0; i < 4 && png_ptr->pass == 3; i++)
- {
- png_push_have_row(png_ptr, png_ptr->row_buf + 1);
- png_read_push_finish_row(png_ptr);
- }
-
- if (png_ptr->pass == 4) /* Skip top two generated rows */
- {
- for (i = 0; i < 2 && png_ptr->pass == 4; i++)
- {
- png_push_have_row(png_ptr, NULL);
- png_read_push_finish_row(png_ptr);
- }
- }
-
- break;
- }
-
- case 4:
- {
- int i;
-
- for (i = 0; i < 2 && png_ptr->pass == 4; i++)
- {
- png_push_have_row(png_ptr, png_ptr->row_buf + 1);
- png_read_push_finish_row(png_ptr);
- }
-
- for (i = 0; i < 2 && png_ptr->pass == 4; i++)
- {
- png_push_have_row(png_ptr, NULL);
- png_read_push_finish_row(png_ptr);
- }
-
- if (png_ptr->pass == 6) /* Pass 5 might be empty */
- {
- png_push_have_row(png_ptr, NULL);
- png_read_push_finish_row(png_ptr);
- }
-
- break;
- }
-
- case 5:
- {
- int i;
-
- for (i = 0; i < 2 && png_ptr->pass == 5; i++)
- {
- png_push_have_row(png_ptr, png_ptr->row_buf + 1);
- png_read_push_finish_row(png_ptr);
- }
-
- if (png_ptr->pass == 6) /* Skip top generated row */
- {
- png_push_have_row(png_ptr, NULL);
- png_read_push_finish_row(png_ptr);
- }
-
- break;
- }
-
- default:
- case 6:
- {
- png_push_have_row(png_ptr, png_ptr->row_buf + 1);
- png_read_push_finish_row(png_ptr);
-
- if (png_ptr->pass != 6)
- break;
-
- png_push_have_row(png_ptr, NULL);
- png_read_push_finish_row(png_ptr);
- }
- }
- }
- else
-#endif
- {
- png_push_have_row(png_ptr, png_ptr->row_buf + 1);
- png_read_push_finish_row(png_ptr);
- }
-}
-
-void /* PRIVATE */
-png_read_push_finish_row(png_structrp png_ptr)
-{
-#ifdef PNG_READ_INTERLACING_SUPPORTED
- /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
-
- /* Start of interlace block */
- static const png_byte png_pass_start[] = {0, 4, 0, 2, 0, 1, 0};
-
- /* Offset to next interlace block */
- static const png_byte png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1};
-
- /* Start of interlace block in the y direction */
- static const png_byte png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1};
-
- /* Offset to next interlace block in the y direction */
- static const png_byte png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2};
-
- /* Height of interlace block. This is not currently used - if you need
- * it, uncomment it here and in png.h
- static const png_byte png_pass_height[] = {8, 8, 4, 4, 2, 2, 1};
- */
-#endif
-
- png_ptr->row_number++;
- if (png_ptr->row_number < png_ptr->num_rows)
- return;
-
-#ifdef PNG_READ_INTERLACING_SUPPORTED
- if (png_ptr->interlaced != 0)
- {
- png_ptr->row_number = 0;
- memset(png_ptr->prev_row, 0, png_ptr->rowbytes + 1);
-
- do
- {
- png_ptr->pass++;
- if ((png_ptr->pass == 1 && png_ptr->width < 5) ||
- (png_ptr->pass == 3 && png_ptr->width < 3) ||
- (png_ptr->pass == 5 && png_ptr->width < 2))
- png_ptr->pass++;
-
- if (png_ptr->pass > 7)
- png_ptr->pass--;
-
- if (png_ptr->pass >= 7)
- break;
-
- png_ptr->iwidth = (png_ptr->width +
- png_pass_inc[png_ptr->pass] - 1 -
- png_pass_start[png_ptr->pass]) /
- png_pass_inc[png_ptr->pass];
-
- if ((png_ptr->transformations & PNG_INTERLACE) != 0)
- break;
-
- png_ptr->num_rows = (png_ptr->height +
- png_pass_yinc[png_ptr->pass] - 1 -
- png_pass_ystart[png_ptr->pass]) /
- png_pass_yinc[png_ptr->pass];
-
- } while (png_ptr->iwidth == 0 || png_ptr->num_rows == 0);
- }
-#endif /* READ_INTERLACING */
-}
-
-void /* PRIVATE */
-png_push_have_info(png_structrp png_ptr, png_inforp info_ptr)
-{
- if (png_ptr->info_fn != NULL)
- (*(png_ptr->info_fn))(png_ptr, info_ptr);
-}
-
-void /* PRIVATE */
-png_push_have_end(png_structrp png_ptr, png_inforp info_ptr)
-{
- if (png_ptr->end_fn != NULL)
- (*(png_ptr->end_fn))(png_ptr, info_ptr);
-}
-
-void /* PRIVATE */
-png_push_have_row(png_structrp png_ptr, png_bytep row)
-{
- if (png_ptr->row_fn != NULL)
- (*(png_ptr->row_fn))(png_ptr, row, png_ptr->row_number,
- (int)png_ptr->pass);
-}
-
-#ifdef PNG_READ_INTERLACING_SUPPORTED
-void PNGAPI
-png_progressive_combine_row(png_const_structrp png_ptr, png_bytep old_row,
- png_const_bytep new_row)
-{
- if (png_ptr == NULL)
- return;
-
- /* new_row is a flag here - if it is NULL then the app callback was called
- * from an empty row (see the calls to png_struct::row_fn below), otherwise
- * it must be png_ptr->row_buf+1
- */
- if (new_row != NULL)
- png_combine_row(png_ptr, old_row, 1/*blocky display*/);
-}
-#endif /* READ_INTERLACING */
-
-void PNGAPI
-png_set_progressive_read_fn(png_structrp png_ptr, png_voidp progressive_ptr,
- png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn,
- png_progressive_end_ptr end_fn)
-{
- if (png_ptr == NULL)
- return;
-
- png_ptr->info_fn = info_fn;
- png_ptr->row_fn = row_fn;
- png_ptr->end_fn = end_fn;
-
- png_set_read_fn(png_ptr, progressive_ptr, png_push_fill_buffer);
-}
-
-png_voidp PNGAPI
-png_get_progressive_ptr(png_const_structrp png_ptr)
-{
- if (png_ptr == NULL)
- return (NULL);
-
- return png_ptr->io_ptr;
-}
-#endif /* PROGRESSIVE_READ */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngpread.lo b/3rdparty/libpng/libpng-1.6.37/pngpread.lo
deleted file mode 100644
index fa386fe..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngpread.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# pngpread.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/pngpread.o'
-
-# Name of the non-PIC object
-non_pic_object='pngpread.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/pngpread.o b/3rdparty/libpng/libpng-1.6.37/pngpread.o
deleted file mode 100644
index 1eeedfc..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngpread.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngprefix.h b/3rdparty/libpng/libpng-1.6.37/pngprefix.h
deleted file mode 100644
index e69de29..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngprefix.h
+++ /dev/null
diff --git a/3rdparty/libpng/libpng-1.6.37/pngpriv.h b/3rdparty/libpng/libpng-1.6.37/pngpriv.h
deleted file mode 100644
index 583c26f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngpriv.h
+++ /dev/null
@@ -1,2152 +0,0 @@
-
-/* pngpriv.h - private declarations for use inside libpng
- *
- * Copyright (c) 2018-2019 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-/* The symbols declared in this file (including the functions declared
- * as extern) are PRIVATE. They are not part of the libpng public
- * interface, and are not recommended for use by regular applications.
- * Some of them may become public in the future; others may stay private,
- * change in an incompatible way, or even disappear.
- * Although the libpng users are not forbidden to include this header,
- * they should be well aware of the issues that may arise from doing so.
- */
-
-#ifndef PNGPRIV_H
-#define PNGPRIV_H
-
-/* Feature Test Macros. The following are defined here to ensure that correctly
- * implemented libraries reveal the APIs libpng needs to build and hide those
- * that are not needed and potentially damaging to the compilation.
- *
- * Feature Test Macros must be defined before any system header is included (see
- * POSIX 1003.1 2.8.2 "POSIX Symbols."
- *
- * These macros only have an effect if the operating system supports either
- * POSIX 1003.1 or C99, or both. On other operating systems (particularly
- * Windows/Visual Studio) there is no effect; the OS specific tests below are
- * still required (as of 2011-05-02.)
- */
-#ifndef _POSIX_SOURCE
-# define _POSIX_SOURCE 1 /* Just the POSIX 1003.1 and C89 APIs */
-#endif
-
-#ifndef PNG_VERSION_INFO_ONLY
-/* Standard library headers not required by png.h: */
-# include <stdlib.h>
-# include <string.h>
-#endif
-
-#define PNGLIB_BUILD /*libpng is being built, not used*/
-
-/* If HAVE_CONFIG_H is defined during the build then the build system must
- * provide an appropriate "config.h" file on the include path. The header file
- * must provide definitions as required below (search for "HAVE_CONFIG_H");
- * see configure.ac for more details of the requirements. The macro
- * "PNG_NO_CONFIG_H" is provided for maintainers to test for dependencies on
- * 'configure'; define this macro to prevent the configure build including the
- * configure generated config.h. Libpng is expected to compile without *any*
- * special build system support on a reasonably ANSI-C compliant system.
- */
-#if defined(HAVE_CONFIG_H) && !defined(PNG_NO_CONFIG_H)
-# include <config.h>
-
- /* Pick up the definition of 'restrict' from config.h if it was read: */
-# define PNG_RESTRICT restrict
-#endif
-
-/* To support symbol prefixing it is necessary to know *before* including png.h
- * whether the fixed point (and maybe other) APIs are exported, because if they
- * are not internal definitions may be required. This is handled below just
- * before png.h is included, but load the configuration now if it is available.
- */
-#ifndef PNGLCONF_H
-# include "pnglibconf.h"
-#endif
-
-/* Local renames may change non-exported API functions from png.h */
-#if defined(PNG_PREFIX) && !defined(PNGPREFIX_H)
-# include "pngprefix.h"
-#endif
-
-#ifdef PNG_USER_CONFIG
-# include "pngusr.h"
- /* These should have been defined in pngusr.h */
-# ifndef PNG_USER_PRIVATEBUILD
-# define PNG_USER_PRIVATEBUILD "Custom libpng build"
-# endif
-# ifndef PNG_USER_DLLFNAME_POSTFIX
-# define PNG_USER_DLLFNAME_POSTFIX "Cb"
-# endif
-#endif
-
-/* Compile time options.
- * =====================
- * In a multi-arch build the compiler may compile the code several times for the
- * same object module, producing different binaries for different architectures.
- * When this happens configure-time setting of the target host options cannot be
- * done and this interferes with the handling of the ARM NEON optimizations, and
- * possibly other similar optimizations. Put additional tests here; in general
- * this is needed when the same option can be changed at both compile time and
- * run time depending on the target OS (i.e. iOS vs Android.)
- *
- * NOTE: symbol prefixing does not pass $(CFLAGS) to the preprocessor, because
- * this is not possible with certain compilers (Oracle SUN OS CC), as a result
- * it is necessary to ensure that all extern functions that *might* be used
- * regardless of $(CFLAGS) get declared in this file. The test on __ARM_NEON__
- * below is one example of this behavior because it is controlled by the
- * presence or not of -mfpu=neon on the GCC command line, it is possible to do
- * this in $(CC), e.g. "CC=gcc -mfpu=neon", but people who build libpng rarely
- * do this.
- */
-#ifndef PNG_ARM_NEON_OPT
- /* ARM NEON optimizations are being controlled by the compiler settings,
- * typically the target FPU. If the FPU has been set to NEON (-mfpu=neon
- * with GCC) then the compiler will define __ARM_NEON__ and we can rely
- * unconditionally on NEON instructions not crashing, otherwise we must
- * disable use of NEON instructions.
- *
- * NOTE: at present these optimizations depend on 'ALIGNED_MEMORY', so they
- * can only be turned on automatically if that is supported too. If
- * PNG_ARM_NEON_OPT is set in CPPFLAGS (to >0) then arm/arm_init.c will fail
- * to compile with an appropriate #error if ALIGNED_MEMORY has been turned
- * off.
- *
- * Note that gcc-4.9 defines __ARM_NEON instead of the deprecated
- * __ARM_NEON__, so we check both variants.
- *
- * To disable ARM_NEON optimizations entirely, and skip compiling the
- * associated assembler code, pass --enable-arm-neon=no to configure
- * or put -DPNG_ARM_NEON_OPT=0 in CPPFLAGS.
- */
-# if (defined(__ARM_NEON__) || defined(__ARM_NEON)) && \
- defined(PNG_ALIGNED_MEMORY_SUPPORTED)
-# define PNG_ARM_NEON_OPT 2
-# else
-# define PNG_ARM_NEON_OPT 0
-# endif
-#endif
-
-#if PNG_ARM_NEON_OPT > 0
- /* NEON optimizations are to be at least considered by libpng, so enable the
- * callbacks to do this.
- */
-# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_neon
-
- /* By default the 'intrinsics' code in arm/filter_neon_intrinsics.c is used
- * if possible - if __ARM_NEON__ is set and the compiler version is not known
- * to be broken. This is controlled by PNG_ARM_NEON_IMPLEMENTATION which can
- * be:
- *
- * 1 The intrinsics code (the default with __ARM_NEON__)
- * 2 The hand coded assembler (the default without __ARM_NEON__)
- *
- * It is possible to set PNG_ARM_NEON_IMPLEMENTATION in CPPFLAGS, however
- * this is *NOT* supported and may cease to work even after a minor revision
- * to libpng. It *is* valid to do this for testing purposes, e.g. speed
- * testing or a new compiler, but the results should be communicated to the
- * libpng implementation list for incorporation in the next minor release.
- */
-# ifndef PNG_ARM_NEON_IMPLEMENTATION
-# if defined(__ARM_NEON__) || defined(__ARM_NEON)
-# if defined(__clang__)
- /* At present it is unknown by the libpng developers which versions
- * of clang support the intrinsics, however some or perhaps all
- * versions do not work with the assembler so this may be
- * irrelevant, so just use the default (do nothing here.)
- */
-# elif defined(__GNUC__)
- /* GCC 4.5.4 NEON support is known to be broken. 4.6.3 is known to
- * work, so if this *is* GCC, or G++, look for a version >4.5
- */
-# if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 6)
-# define PNG_ARM_NEON_IMPLEMENTATION 2
-# endif /* no GNUC support */
-# endif /* __GNUC__ */
-# else /* !defined __ARM_NEON__ */
- /* The 'intrinsics' code simply won't compile without this -mfpu=neon:
- */
-# if !defined(__aarch64__)
- /* The assembler code currently does not work on ARM64 */
-# define PNG_ARM_NEON_IMPLEMENTATION 2
-# endif /* __aarch64__ */
-# endif /* __ARM_NEON__ */
-# endif /* !PNG_ARM_NEON_IMPLEMENTATION */
-
-# ifndef PNG_ARM_NEON_IMPLEMENTATION
- /* Use the intrinsics code by default. */
-# define PNG_ARM_NEON_IMPLEMENTATION 1
-# endif
-#endif /* PNG_ARM_NEON_OPT > 0 */
-
-#ifndef PNG_MIPS_MSA_OPT
-# if defined(__mips_msa) && (__mips_isa_rev >= 5) && defined(PNG_ALIGNED_MEMORY_SUPPORTED)
-# define PNG_MIPS_MSA_OPT 2
-# else
-# define PNG_MIPS_MSA_OPT 0
-# endif
-#endif
-
-#ifndef PNG_POWERPC_VSX_OPT
-# if defined(__PPC64__) && defined(__ALTIVEC__) && defined(__VSX__)
-# define PNG_POWERPC_VSX_OPT 2
-# else
-# define PNG_POWERPC_VSX_OPT 0
-# endif
-#endif
-
-#ifndef PNG_INTEL_SSE_OPT
-# ifdef PNG_INTEL_SSE
- /* Only check for SSE if the build configuration has been modified to
- * enable SSE optimizations. This means that these optimizations will
- * be off by default. See contrib/intel for more details.
- */
-# if defined(__SSE4_1__) || defined(__AVX__) || defined(__SSSE3__) || \
- defined(__SSE2__) || defined(_M_X64) || defined(_M_AMD64) || \
- (defined(_M_IX86_FP) && _M_IX86_FP >= 2)
-# define PNG_INTEL_SSE_OPT 1
-# else
-# define PNG_INTEL_SSE_OPT 0
-# endif
-# else
-# define PNG_INTEL_SSE_OPT 0
-# endif
-#endif
-
-#if PNG_INTEL_SSE_OPT > 0
-# ifndef PNG_INTEL_SSE_IMPLEMENTATION
-# if defined(__SSE4_1__) || defined(__AVX__)
- /* We are not actually using AVX, but checking for AVX is the best
- way we can detect SSE4.1 and SSSE3 on MSVC.
- */
-# define PNG_INTEL_SSE_IMPLEMENTATION 3
-# elif defined(__SSSE3__)
-# define PNG_INTEL_SSE_IMPLEMENTATION 2
-# elif defined(__SSE2__) || defined(_M_X64) || defined(_M_AMD64) || \
- (defined(_M_IX86_FP) && _M_IX86_FP >= 2)
-# define PNG_INTEL_SSE_IMPLEMENTATION 1
-# else
-# define PNG_INTEL_SSE_IMPLEMENTATION 0
-# endif
-# endif
-
-# if PNG_INTEL_SSE_IMPLEMENTATION > 0
-# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_sse2
-# endif
-#else
-# define PNG_INTEL_SSE_IMPLEMENTATION 0
-#endif
-
-#if PNG_MIPS_MSA_OPT > 0
-# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_msa
-# ifndef PNG_MIPS_MSA_IMPLEMENTATION
-# if defined(__mips_msa)
-# if defined(__clang__)
-# elif defined(__GNUC__)
-# if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
-# define PNG_MIPS_MSA_IMPLEMENTATION 2
-# endif /* no GNUC support */
-# endif /* __GNUC__ */
-# else /* !defined __mips_msa */
-# define PNG_MIPS_MSA_IMPLEMENTATION 2
-# endif /* __mips_msa */
-# endif /* !PNG_MIPS_MSA_IMPLEMENTATION */
-
-# ifndef PNG_MIPS_MSA_IMPLEMENTATION
-# define PNG_MIPS_MSA_IMPLEMENTATION 1
-# endif
-#endif /* PNG_MIPS_MSA_OPT > 0 */
-
-#if PNG_POWERPC_VSX_OPT > 0
-# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_vsx
-# define PNG_POWERPC_VSX_IMPLEMENTATION 1
-#endif
-
-
-/* Is this a build of a DLL where compilation of the object modules requires
- * different preprocessor settings to those required for a simple library? If
- * so PNG_BUILD_DLL must be set.
- *
- * If libpng is used inside a DLL but that DLL does not export the libpng APIs
- * PNG_BUILD_DLL must not be set. To avoid the code below kicking in build a
- * static library of libpng then link the DLL against that.
- */
-#ifndef PNG_BUILD_DLL
-# ifdef DLL_EXPORT
- /* This is set by libtool when files are compiled for a DLL; libtool
- * always compiles twice, even on systems where it isn't necessary. Set
- * PNG_BUILD_DLL in case it is necessary:
- */
-# define PNG_BUILD_DLL
-# else
-# ifdef _WINDLL
- /* This is set by the Microsoft Visual Studio IDE in projects that
- * build a DLL. It can't easily be removed from those projects (it
- * isn't visible in the Visual Studio UI) so it is a fairly reliable
- * indication that PNG_IMPEXP needs to be set to the DLL export
- * attributes.
- */
-# define PNG_BUILD_DLL
-# else
-# ifdef __DLL__
- /* This is set by the Borland C system when compiling for a DLL
- * (as above.)
- */
-# define PNG_BUILD_DLL
-# else
- /* Add additional compiler cases here. */
-# endif
-# endif
-# endif
-#endif /* Setting PNG_BUILD_DLL if required */
-
-/* See pngconf.h for more details: the builder of the library may set this on
- * the command line to the right thing for the specific compilation system or it
- * may be automagically set above (at present we know of no system where it does
- * need to be set on the command line.)
- *
- * PNG_IMPEXP must be set here when building the library to prevent pngconf.h
- * setting it to the "import" setting for a DLL build.
- */
-#ifndef PNG_IMPEXP
-# ifdef PNG_BUILD_DLL
-# define PNG_IMPEXP PNG_DLL_EXPORT
-# else
- /* Not building a DLL, or the DLL doesn't require specific export
- * definitions.
- */
-# define PNG_IMPEXP
-# endif
-#endif
-
-/* No warnings for private or deprecated functions in the build: */
-#ifndef PNG_DEPRECATED
-# define PNG_DEPRECATED
-#endif
-#ifndef PNG_PRIVATE
-# define PNG_PRIVATE
-#endif
-
-/* Symbol preprocessing support.
- *
- * To enable listing global, but internal, symbols the following macros should
- * always be used to declare an extern data or function object in this file.
- */
-#ifndef PNG_INTERNAL_DATA
-# define PNG_INTERNAL_DATA(type, name, array) PNG_LINKAGE_DATA type name array
-#endif
-
-#ifndef PNG_INTERNAL_FUNCTION
-# define PNG_INTERNAL_FUNCTION(type, name, args, attributes)\
- PNG_LINKAGE_FUNCTION PNG_FUNCTION(type, name, args, PNG_EMPTY attributes)
-#endif
-
-#ifndef PNG_INTERNAL_CALLBACK
-# define PNG_INTERNAL_CALLBACK(type, name, args, attributes)\
- PNG_LINKAGE_CALLBACK PNG_FUNCTION(type, (PNGCBAPI name), args,\
- PNG_EMPTY attributes)
-#endif
-
-/* If floating or fixed point APIs are disabled they may still be compiled
- * internally. To handle this make sure they are declared as the appropriate
- * internal extern function (otherwise the symbol prefixing stuff won't work and
- * the functions will be used without definitions.)
- *
- * NOTE: although all the API functions are declared here they are not all
- * actually built! Because the declarations are still made it is necessary to
- * fake out types that they depend on.
- */
-#ifndef PNG_FP_EXPORT
-# ifndef PNG_FLOATING_POINT_SUPPORTED
-# define PNG_FP_EXPORT(ordinal, type, name, args)\
- PNG_INTERNAL_FUNCTION(type, name, args, PNG_EMPTY);
-# ifndef PNG_VERSION_INFO_ONLY
- typedef struct png_incomplete png_double;
- typedef png_double* png_doublep;
- typedef const png_double* png_const_doublep;
- typedef png_double** png_doublepp;
-# endif
-# endif
-#endif
-#ifndef PNG_FIXED_EXPORT
-# ifndef PNG_FIXED_POINT_SUPPORTED
-# define PNG_FIXED_EXPORT(ordinal, type, name, args)\
- PNG_INTERNAL_FUNCTION(type, name, args, PNG_EMPTY);
-# endif
-#endif
-
-#include "png.h"
-
-/* pngconf.h does not set PNG_DLL_EXPORT unless it is required, so: */
-#ifndef PNG_DLL_EXPORT
-# define PNG_DLL_EXPORT
-#endif
-
-/* This is a global switch to set the compilation for an installed system
- * (a release build). It can be set for testing debug builds to ensure that
- * they will compile when the build type is switched to RC or STABLE, the
- * default is just to use PNG_LIBPNG_BUILD_BASE_TYPE. Set this in CPPFLAGS
- * with either:
- *
- * -DPNG_RELEASE_BUILD Turns on the release compile path
- * -DPNG_RELEASE_BUILD=0 Turns it off
- * or in your pngusr.h with
- * #define PNG_RELEASE_BUILD=1 Turns on the release compile path
- * #define PNG_RELEASE_BUILD=0 Turns it off
- */
-#ifndef PNG_RELEASE_BUILD
-# define PNG_RELEASE_BUILD (PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC)
-#endif
-
-/* SECURITY and SAFETY:
- *
- * libpng is built with support for internal limits on image dimensions and
- * memory usage. These are documented in scripts/pnglibconf.dfa of the
- * source and recorded in the machine generated header file pnglibconf.h.
- */
-
-/* If you are running on a machine where you cannot allocate more
- * than 64K of memory at once, uncomment this. While libpng will not
- * normally need that much memory in a chunk (unless you load up a very
- * large file), zlib needs to know how big of a chunk it can use, and
- * libpng thus makes sure to check any memory allocation to verify it
- * will fit into memory.
- *
- * zlib provides 'MAXSEG_64K' which, if defined, indicates the
- * same limit and pngconf.h (already included) sets the limit
- * if certain operating systems are detected.
- */
-#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
-# define PNG_MAX_MALLOC_64K
-#endif
-
-#ifndef PNG_UNUSED
-/* Unused formal parameter warnings are silenced using the following macro
- * which is expected to have no bad effects on performance (optimizing
- * compilers will probably remove it entirely). Note that if you replace
- * it with something other than whitespace, you must include the terminating
- * semicolon.
- */
-# define PNG_UNUSED(param) (void)param;
-#endif
-
-/* Just a little check that someone hasn't tried to define something
- * contradictory.
- */
-#if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K)
-# undef PNG_ZBUF_SIZE
-# define PNG_ZBUF_SIZE 65536L
-#endif
-
-/* If warnings or errors are turned off the code is disabled or redirected here.
- * From 1.5.4 functions have been added to allow very limited formatting of
- * error and warning messages - this code will also be disabled here.
- */
-#ifdef PNG_WARNINGS_SUPPORTED
-# define PNG_WARNING_PARAMETERS(p) png_warning_parameters p;
-#else
-# define png_warning_parameter(p,number,string) ((void)0)
-# define png_warning_parameter_unsigned(p,number,format,value) ((void)0)
-# define png_warning_parameter_signed(p,number,format,value) ((void)0)
-# define png_formatted_warning(pp,p,message) ((void)(pp))
-# define PNG_WARNING_PARAMETERS(p)
-#endif
-#ifndef PNG_ERROR_TEXT_SUPPORTED
-# define png_fixed_error(s1,s2) png_err(s1)
-#endif
-
-/* Some fixed point APIs are still required even if not exported because
- * they get used by the corresponding floating point APIs. This magic
- * deals with this:
- */
-#ifdef PNG_FIXED_POINT_SUPPORTED
-# define PNGFAPI PNGAPI
-#else
-# define PNGFAPI /* PRIVATE */
-#endif
-
-#ifndef PNG_VERSION_INFO_ONLY
-/* Other defines specific to compilers can go here. Try to keep
- * them inside an appropriate ifdef/endif pair for portability.
- */
-
-/* C allows up-casts from (void*) to any pointer and (const void*) to any
- * pointer to a const object. C++ regards this as a type error and requires an
- * explicit, static, cast and provides the static_cast<> rune to ensure that
- * const is not cast away.
- */
-#ifdef __cplusplus
-# define png_voidcast(type, value) static_cast<type>(value)
-# define png_constcast(type, value) const_cast<type>(value)
-# define png_aligncast(type, value) \
- static_cast<type>(static_cast<void*>(value))
-# define png_aligncastconst(type, value) \
- static_cast<type>(static_cast<const void*>(value))
-#else
-# define png_voidcast(type, value) (value)
-# ifdef _WIN64
-# ifdef __GNUC__
- typedef unsigned long long png_ptruint;
-# else
- typedef unsigned __int64 png_ptruint;
-# endif
-# else
- typedef unsigned long png_ptruint;
-# endif
-# define png_constcast(type, value) ((type)(png_ptruint)(const void*)(value))
-# define png_aligncast(type, value) ((void*)(value))
-# define png_aligncastconst(type, value) ((const void*)(value))
-#endif /* __cplusplus */
-
-#if defined(PNG_FLOATING_POINT_SUPPORTED) ||\
- defined(PNG_FLOATING_ARITHMETIC_SUPPORTED)
- /* png.c requires the following ANSI-C constants if the conversion of
- * floating point to ASCII is implemented therein:
- *
- * DBL_DIG Maximum number of decimal digits (can be set to any constant)
- * DBL_MIN Smallest normalized fp number (can be set to an arbitrary value)
- * DBL_MAX Maximum floating point number (can be set to an arbitrary value)
- */
-# include <float.h>
-
-# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
- defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
- /* We need to check that <math.h> hasn't already been included earlier
- * as it seems it doesn't agree with <fp.h>, yet we should really use
- * <fp.h> if possible.
- */
-# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
-# include <fp.h>
-# endif
-# else
-# include <math.h>
-# endif
-# if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
- /* Amiga SAS/C: We must include builtin FPU functions when compiling using
- * MATH=68881
- */
-# include <m68881.h>
-# endif
-#endif
-
-/* This provides the non-ANSI (far) memory allocation routines. */
-#if defined(__TURBOC__) && defined(__MSDOS__)
-# include <mem.h>
-# include <alloc.h>
-#endif
-
-#if defined(WIN32) || defined(_Windows) || defined(_WINDOWS) || \
- defined(_WIN32) || defined(__WIN32__)
-# include <windows.h> /* defines _WINDOWS_ macro */
-#endif
-#endif /* PNG_VERSION_INFO_ONLY */
-
-/* Moved here around 1.5.0beta36 from pngconf.h */
-/* Users may want to use these so they are not private. Any library
- * functions that are passed far data must be model-independent.
- */
-
-/* Memory model/platform independent fns */
-#ifndef PNG_ABORT
-# ifdef _WINDOWS_
-# define PNG_ABORT() ExitProcess(0)
-# else
-# define PNG_ABORT() abort()
-# endif
-#endif
-
-/* These macros may need to be architecture dependent. */
-#define PNG_ALIGN_NONE 0 /* do not use data alignment */
-#define PNG_ALIGN_ALWAYS 1 /* assume unaligned accesses are OK */
-#ifdef offsetof
-# define PNG_ALIGN_OFFSET 2 /* use offsetof to determine alignment */
-#else
-# define PNG_ALIGN_OFFSET -1 /* prevent the use of this */
-#endif
-#define PNG_ALIGN_SIZE 3 /* use sizeof to determine alignment */
-
-#ifndef PNG_ALIGN_TYPE
- /* Default to using aligned access optimizations and requiring alignment to a
- * multiple of the data type size. Override in a compiler specific fashion
- * if necessary by inserting tests here:
- */
-# define PNG_ALIGN_TYPE PNG_ALIGN_SIZE
-#endif
-
-#if PNG_ALIGN_TYPE == PNG_ALIGN_SIZE
- /* This is used because in some compiler implementations non-aligned
- * structure members are supported, so the offsetof approach below fails.
- * Set PNG_ALIGN_SIZE=0 for compiler combinations where unaligned access
- * is good for performance. Do not do this unless you have tested the result
- * and understand it.
- */
-# define png_alignof(type) (sizeof (type))
-#else
-# if PNG_ALIGN_TYPE == PNG_ALIGN_OFFSET
-# define png_alignof(type) offsetof(struct{char c; type t;}, t)
-# else
-# if PNG_ALIGN_TYPE == PNG_ALIGN_ALWAYS
-# define png_alignof(type) (1)
-# endif
- /* Else leave png_alignof undefined to prevent use thereof */
-# endif
-#endif
-
-/* This implicitly assumes alignment is always to a power of 2. */
-#ifdef png_alignof
-# define png_isaligned(ptr, type)\
- (((type)((const char*)ptr-(const char*)0) & \
- (type)(png_alignof(type)-1)) == 0)
-#else
-# define png_isaligned(ptr, type) 0
-#endif
-
-/* End of memory model/platform independent support */
-/* End of 1.5.0beta36 move from pngconf.h */
-
-/* CONSTANTS and UTILITY MACROS
- * These are used internally by libpng and not exposed in the API
- */
-
-/* Various modes of operation. Note that after an init, mode is set to
- * zero automatically when the structure is created. Three of these
- * are defined in png.h because they need to be visible to applications
- * that call png_set_unknown_chunk().
- */
-/* #define PNG_HAVE_IHDR 0x01U (defined in png.h) */
-/* #define PNG_HAVE_PLTE 0x02U (defined in png.h) */
-#define PNG_HAVE_IDAT 0x04U
-/* #define PNG_AFTER_IDAT 0x08U (defined in png.h) */
-#define PNG_HAVE_IEND 0x10U
- /* 0x20U (unused) */
- /* 0x40U (unused) */
- /* 0x80U (unused) */
-#define PNG_HAVE_CHUNK_HEADER 0x100U
-#define PNG_WROTE_tIME 0x200U
-#define PNG_WROTE_INFO_BEFORE_PLTE 0x400U
-#define PNG_BACKGROUND_IS_GRAY 0x800U
-#define PNG_HAVE_PNG_SIGNATURE 0x1000U
-#define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000U /* Have another chunk after IDAT */
- /* 0x4000U (unused) */
-#define PNG_IS_READ_STRUCT 0x8000U /* Else is a write struct */
-
-/* Flags for the transformations the PNG library does on the image data */
-#define PNG_BGR 0x0001U
-#define PNG_INTERLACE 0x0002U
-#define PNG_PACK 0x0004U
-#define PNG_SHIFT 0x0008U
-#define PNG_SWAP_BYTES 0x0010U
-#define PNG_INVERT_MONO 0x0020U
-#define PNG_QUANTIZE 0x0040U
-#define PNG_COMPOSE 0x0080U /* Was PNG_BACKGROUND */
-#define PNG_BACKGROUND_EXPAND 0x0100U
-#define PNG_EXPAND_16 0x0200U /* Added to libpng 1.5.2 */
-#define PNG_16_TO_8 0x0400U /* Becomes 'chop' in 1.5.4 */
-#define PNG_RGBA 0x0800U
-#define PNG_EXPAND 0x1000U
-#define PNG_GAMMA 0x2000U
-#define PNG_GRAY_TO_RGB 0x4000U
-#define PNG_FILLER 0x8000U
-#define PNG_PACKSWAP 0x10000U
-#define PNG_SWAP_ALPHA 0x20000U
-#define PNG_STRIP_ALPHA 0x40000U
-#define PNG_INVERT_ALPHA 0x80000U
-#define PNG_USER_TRANSFORM 0x100000U
-#define PNG_RGB_TO_GRAY_ERR 0x200000U
-#define PNG_RGB_TO_GRAY_WARN 0x400000U
-#define PNG_RGB_TO_GRAY 0x600000U /* two bits, RGB_TO_GRAY_ERR|WARN */
-#define PNG_ENCODE_ALPHA 0x800000U /* Added to libpng-1.5.4 */
-#define PNG_ADD_ALPHA 0x1000000U /* Added to libpng-1.2.7 */
-#define PNG_EXPAND_tRNS 0x2000000U /* Added to libpng-1.2.9 */
-#define PNG_SCALE_16_TO_8 0x4000000U /* Added to libpng-1.5.4 */
- /* 0x8000000U unused */
- /* 0x10000000U unused */
- /* 0x20000000U unused */
- /* 0x40000000U unused */
-/* Flags for png_create_struct */
-#define PNG_STRUCT_PNG 0x0001U
-#define PNG_STRUCT_INFO 0x0002U
-
-/* Flags for the png_ptr->flags rather than declaring a byte for each one */
-#define PNG_FLAG_ZLIB_CUSTOM_STRATEGY 0x0001U
-#define PNG_FLAG_ZSTREAM_INITIALIZED 0x0002U /* Added to libpng-1.6.0 */
- /* 0x0004U unused */
-#define PNG_FLAG_ZSTREAM_ENDED 0x0008U /* Added to libpng-1.6.0 */
- /* 0x0010U unused */
- /* 0x0020U unused */
-#define PNG_FLAG_ROW_INIT 0x0040U
-#define PNG_FLAG_FILLER_AFTER 0x0080U
-#define PNG_FLAG_CRC_ANCILLARY_USE 0x0100U
-#define PNG_FLAG_CRC_ANCILLARY_NOWARN 0x0200U
-#define PNG_FLAG_CRC_CRITICAL_USE 0x0400U
-#define PNG_FLAG_CRC_CRITICAL_IGNORE 0x0800U
-#define PNG_FLAG_ASSUME_sRGB 0x1000U /* Added to libpng-1.5.4 */
-#define PNG_FLAG_OPTIMIZE_ALPHA 0x2000U /* Added to libpng-1.5.4 */
-#define PNG_FLAG_DETECT_UNINITIALIZED 0x4000U /* Added to libpng-1.5.4 */
-/* #define PNG_FLAG_KEEP_UNKNOWN_CHUNKS 0x8000U */
-/* #define PNG_FLAG_KEEP_UNSAFE_CHUNKS 0x10000U */
-#define PNG_FLAG_LIBRARY_MISMATCH 0x20000U
-#define PNG_FLAG_STRIP_ERROR_NUMBERS 0x40000U
-#define PNG_FLAG_STRIP_ERROR_TEXT 0x80000U
-#define PNG_FLAG_BENIGN_ERRORS_WARN 0x100000U /* Added to libpng-1.4.0 */
-#define PNG_FLAG_APP_WARNINGS_WARN 0x200000U /* Added to libpng-1.6.0 */
-#define PNG_FLAG_APP_ERRORS_WARN 0x400000U /* Added to libpng-1.6.0 */
- /* 0x800000U unused */
- /* 0x1000000U unused */
- /* 0x2000000U unused */
- /* 0x4000000U unused */
- /* 0x8000000U unused */
- /* 0x10000000U unused */
- /* 0x20000000U unused */
- /* 0x40000000U unused */
-
-#define PNG_FLAG_CRC_ANCILLARY_MASK (PNG_FLAG_CRC_ANCILLARY_USE | \
- PNG_FLAG_CRC_ANCILLARY_NOWARN)
-
-#define PNG_FLAG_CRC_CRITICAL_MASK (PNG_FLAG_CRC_CRITICAL_USE | \
- PNG_FLAG_CRC_CRITICAL_IGNORE)
-
-#define PNG_FLAG_CRC_MASK (PNG_FLAG_CRC_ANCILLARY_MASK | \
- PNG_FLAG_CRC_CRITICAL_MASK)
-
-/* Save typing and make code easier to understand */
-
-#define PNG_COLOR_DIST(c1, c2) (abs((int)((c1).red) - (int)((c2).red)) + \
- abs((int)((c1).green) - (int)((c2).green)) + \
- abs((int)((c1).blue) - (int)((c2).blue)))
-
-/* Added to libpng-1.6.0: scale a 16-bit value in the range 0..65535 to 0..255
- * by dividing by 257 *with rounding*. This macro is exact for the given range.
- * See the discourse in pngrtran.c png_do_scale_16_to_8. The values in the
- * macro were established by experiment (modifying the added value). The macro
- * has a second variant that takes a value already scaled by 255 and divides by
- * 65535 - this has a maximum error of .502. Over the range 0..65535*65535 it
- * only gives off-by-one errors and only for 0.5% (1 in 200) of the values.
- */
-#define PNG_DIV65535(v24) (((v24) + 32895) >> 16)
-#define PNG_DIV257(v16) PNG_DIV65535((png_uint_32)(v16) * 255)
-
-/* Added to libpng-1.2.6 JB */
-#define PNG_ROWBYTES(pixel_bits, width) \
- ((pixel_bits) >= 8 ? \
- ((size_t)(width) * (((size_t)(pixel_bits)) >> 3)) : \
- (( ((size_t)(width) * ((size_t)(pixel_bits))) + 7) >> 3) )
-
-/* This returns the number of trailing bits in the last byte of a row, 0 if the
- * last byte is completely full of pixels. It is, in principle, (pixel_bits x
- * width) % 8, but that would overflow for large 'width'. The second macro is
- * the same except that it returns the number of unused bits in the last byte;
- * (8-TRAILBITS), but 0 when TRAILBITS is 0.
- *
- * NOTE: these macros are intended to be self-evidently correct and never
- * overflow on the assumption that pixel_bits is in the range 0..255. The
- * arguments are evaluated only once and they can be signed (e.g. as a result of
- * the integral promotions). The result of the expression always has type
- * (png_uint_32), however the compiler always knows it is in the range 0..7.
- */
-#define PNG_TRAILBITS(pixel_bits, width) \
- (((pixel_bits) * ((width) % (png_uint_32)8)) % 8)
-
-#define PNG_PADBITS(pixel_bits, width) \
- ((8 - PNG_TRAILBITS(pixel_bits, width)) % 8)
-
-/* PNG_OUT_OF_RANGE returns true if value is outside the range
- * ideal-delta..ideal+delta. Each argument is evaluated twice.
- * "ideal" and "delta" should be constants, normally simple
- * integers, "value" a variable. Added to libpng-1.2.6 JB
- */
-#define PNG_OUT_OF_RANGE(value, ideal, delta) \
- ( (value) < (ideal)-(delta) || (value) > (ideal)+(delta) )
-
-/* Conversions between fixed and floating point, only defined if
- * required (to make sure the code doesn't accidentally use float
- * when it is supposedly disabled.)
- */
-#ifdef PNG_FLOATING_POINT_SUPPORTED
-/* The floating point conversion can't overflow, though it can and
- * does lose accuracy relative to the original fixed point value.
- * In practice this doesn't matter because png_fixed_point only
- * stores numbers with very low precision. The png_ptr and s
- * arguments are unused by default but are there in case error
- * checking becomes a requirement.
- */
-#define png_float(png_ptr, fixed, s) (.00001 * (fixed))
-
-/* The fixed point conversion performs range checking and evaluates
- * its argument multiple times, so must be used with care. The
- * range checking uses the PNG specification values for a signed
- * 32-bit fixed point value except that the values are deliberately
- * rounded-to-zero to an integral value - 21474 (21474.83 is roughly
- * (2^31-1) * 100000). 's' is a string that describes the value being
- * converted.
- *
- * NOTE: this macro will raise a png_error if the range check fails,
- * therefore it is normally only appropriate to use this on values
- * that come from API calls or other sources where an out of range
- * error indicates a programming error, not a data error!
- *
- * NOTE: by default this is off - the macro is not used - because the
- * function call saves a lot of code.
- */
-#ifdef PNG_FIXED_POINT_MACRO_SUPPORTED
-#define png_fixed(png_ptr, fp, s) ((fp) <= 21474 && (fp) >= -21474 ?\
- ((png_fixed_point)(100000 * (fp))) : (png_fixed_error(png_ptr, s),0))
-#endif
-/* else the corresponding function is defined below, inside the scope of the
- * cplusplus test.
- */
-#endif
-
-/* Constants for known chunk types. If you need to add a chunk, define the name
- * here. For historical reasons these constants have the form png_<name>; i.e.
- * the prefix is lower case. Please use decimal values as the parameters to
- * match the ISO PNG specification and to avoid relying on the C locale
- * interpretation of character values.
- *
- * Prior to 1.5.6 these constants were strings, as of 1.5.6 png_uint_32 values
- * are computed and a new macro (PNG_STRING_FROM_CHUNK) added to allow a string
- * to be generated if required.
- *
- * PNG_32b correctly produces a value shifted by up to 24 bits, even on
- * architectures where (int) is only 16 bits.
- */
-#define PNG_32b(b,s) ((png_uint_32)(b) << (s))
-#define PNG_U32(b1,b2,b3,b4) \
- (PNG_32b(b1,24) | PNG_32b(b2,16) | PNG_32b(b3,8) | PNG_32b(b4,0))
-
-/* Constants for known chunk types.
- *
- * MAINTAINERS: If you need to add a chunk, define the name here.
- * For historical reasons these constants have the form png_<name>; i.e.
- * the prefix is lower case. Please use decimal values as the parameters to
- * match the ISO PNG specification and to avoid relying on the C locale
- * interpretation of character values. Please keep the list sorted.
- *
- * Notice that PNG_U32 is used to define a 32-bit value for the 4 byte chunk
- * type. In fact the specification does not express chunk types this way,
- * however using a 32-bit value means that the chunk type can be read from the
- * stream using exactly the same code as used for a 32-bit unsigned value and
- * can be examined far more efficiently (using one arithmetic compare).
- *
- * Prior to 1.5.6 the chunk type constants were expressed as C strings. The
- * libpng API still uses strings for 'unknown' chunks and a macro,
- * PNG_STRING_FROM_CHUNK, allows a string to be generated if required. Notice
- * that for portable code numeric values must still be used; the string "IHDR"
- * is not portable and neither is PNG_U32('I', 'H', 'D', 'R').
- *
- * In 1.7.0 the definitions will be made public in png.h to avoid having to
- * duplicate the same definitions in application code.
- */
-#define png_IDAT PNG_U32( 73, 68, 65, 84)
-#define png_IEND PNG_U32( 73, 69, 78, 68)
-#define png_IHDR PNG_U32( 73, 72, 68, 82)
-#define png_PLTE PNG_U32( 80, 76, 84, 69)
-#define png_bKGD PNG_U32( 98, 75, 71, 68)
-#define png_cHRM PNG_U32( 99, 72, 82, 77)
-#define png_eXIf PNG_U32(101, 88, 73, 102) /* registered July 2017 */
-#define png_fRAc PNG_U32(102, 82, 65, 99) /* registered, not defined */
-#define png_gAMA PNG_U32(103, 65, 77, 65)
-#define png_gIFg PNG_U32(103, 73, 70, 103)
-#define png_gIFt PNG_U32(103, 73, 70, 116) /* deprecated */
-#define png_gIFx PNG_U32(103, 73, 70, 120)
-#define png_hIST PNG_U32(104, 73, 83, 84)
-#define png_iCCP PNG_U32(105, 67, 67, 80)
-#define png_iTXt PNG_U32(105, 84, 88, 116)
-#define png_oFFs PNG_U32(111, 70, 70, 115)
-#define png_pCAL PNG_U32(112, 67, 65, 76)
-#define png_pHYs PNG_U32(112, 72, 89, 115)
-#define png_sBIT PNG_U32(115, 66, 73, 84)
-#define png_sCAL PNG_U32(115, 67, 65, 76)
-#define png_sPLT PNG_U32(115, 80, 76, 84)
-#define png_sRGB PNG_U32(115, 82, 71, 66)
-#define png_sTER PNG_U32(115, 84, 69, 82)
-#define png_tEXt PNG_U32(116, 69, 88, 116)
-#define png_tIME PNG_U32(116, 73, 77, 69)
-#define png_tRNS PNG_U32(116, 82, 78, 83)
-#define png_zTXt PNG_U32(122, 84, 88, 116)
-
-/* The following will work on (signed char*) strings, whereas the get_uint_32
- * macro will fail on top-bit-set values because of the sign extension.
- */
-#define PNG_CHUNK_FROM_STRING(s)\
- PNG_U32(0xff & (s)[0], 0xff & (s)[1], 0xff & (s)[2], 0xff & (s)[3])
-
-/* This uses (char), not (png_byte) to avoid warnings on systems where (char) is
- * signed and the argument is a (char[]) This macro will fail miserably on
- * systems where (char) is more than 8 bits.
- */
-#define PNG_STRING_FROM_CHUNK(s,c)\
- (void)(((char*)(s))[0]=(char)(((c)>>24) & 0xff), \
- ((char*)(s))[1]=(char)(((c)>>16) & 0xff),\
- ((char*)(s))[2]=(char)(((c)>>8) & 0xff), \
- ((char*)(s))[3]=(char)((c & 0xff)))
-
-/* Do the same but terminate with a null character. */
-#define PNG_CSTRING_FROM_CHUNK(s,c)\
- (void)(PNG_STRING_FROM_CHUNK(s,c), ((char*)(s))[4] = 0)
-
-/* Test on flag values as defined in the spec (section 5.4): */
-#define PNG_CHUNK_ANCILLARY(c) (1 & ((c) >> 29))
-#define PNG_CHUNK_CRITICAL(c) (!PNG_CHUNK_ANCILLARY(c))
-#define PNG_CHUNK_PRIVATE(c) (1 & ((c) >> 21))
-#define PNG_CHUNK_RESERVED(c) (1 & ((c) >> 13))
-#define PNG_CHUNK_SAFE_TO_COPY(c) (1 & ((c) >> 5))
-
-/* Gamma values (new at libpng-1.5.4): */
-#define PNG_GAMMA_MAC_OLD 151724 /* Assume '1.8' is really 2.2/1.45! */
-#define PNG_GAMMA_MAC_INVERSE 65909
-#define PNG_GAMMA_sRGB_INVERSE 45455
-
-/* Almost everything below is C specific; the #defines above can be used in
- * non-C code (so long as it is C-preprocessed) the rest of this stuff cannot.
- */
-#ifndef PNG_VERSION_INFO_ONLY
-
-#include "pngstruct.h"
-#include "pnginfo.h"
-
-/* Validate the include paths - the include path used to generate pnglibconf.h
- * must match that used in the build, or we must be using pnglibconf.h.prebuilt:
- */
-#if PNG_ZLIB_VERNUM != 0 && PNG_ZLIB_VERNUM != ZLIB_VERNUM
-# error ZLIB_VERNUM != PNG_ZLIB_VERNUM \
- "-I (include path) error: see the notes in pngpriv.h"
- /* This means that when pnglibconf.h was built the copy of zlib.h that it
- * used is not the same as the one being used here. Because the build of
- * libpng makes decisions to use inflateInit2 and inflateReset2 based on the
- * zlib version number and because this affects handling of certain broken
- * PNG files the -I directives must match.
- *
- * The most likely explanation is that you passed a -I in CFLAGS. This will
- * not work; all the preprocessor directives and in particular all the -I
- * directives must be in CPPFLAGS.
- */
-#endif
-
-/* This is used for 16-bit gamma tables -- only the top level pointers are
- * const; this could be changed:
- */
-typedef const png_uint_16p * png_const_uint_16pp;
-
-/* Added to libpng-1.5.7: sRGB conversion tables */
-#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) ||\
- defined(PNG_SIMPLIFIED_WRITE_SUPPORTED)
-#ifdef PNG_SIMPLIFIED_READ_SUPPORTED
-PNG_INTERNAL_DATA(const png_uint_16, png_sRGB_table, [256]);
- /* Convert from an sRGB encoded value 0..255 to a 16-bit linear value,
- * 0..65535. This table gives the closest 16-bit answers (no errors).
- */
-#endif
-
-PNG_INTERNAL_DATA(const png_uint_16, png_sRGB_base, [512]);
-PNG_INTERNAL_DATA(const png_byte, png_sRGB_delta, [512]);
-
-#define PNG_sRGB_FROM_LINEAR(linear) \
- ((png_byte)(0xff & ((png_sRGB_base[(linear)>>15] \
- + ((((linear) & 0x7fff)*png_sRGB_delta[(linear)>>15])>>12)) >> 8)))
- /* Given a value 'linear' in the range 0..255*65535 calculate the 8-bit sRGB
- * encoded value with maximum error 0.646365. Note that the input is not a
- * 16-bit value; it has been multiplied by 255! */
-#endif /* SIMPLIFIED_READ/WRITE */
-
-
-/* Inhibit C++ name-mangling for libpng functions but not for system calls. */
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-/* Internal functions; these are not exported from a DLL however because they
- * are used within several of the C source files they have to be C extern.
- *
- * All of these functions must be declared with PNG_INTERNAL_FUNCTION.
- */
-
-/* Zlib support */
-#define PNG_UNEXPECTED_ZLIB_RETURN (-7)
-PNG_INTERNAL_FUNCTION(void, png_zstream_error,(png_structrp png_ptr, int ret),
- PNG_EMPTY);
- /* Used by the zlib handling functions to ensure that z_stream::msg is always
- * set before they return.
- */
-
-#ifdef PNG_WRITE_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_free_buffer_list,(png_structrp png_ptr,
- png_compression_bufferp *list),PNG_EMPTY);
- /* Free the buffer list used by the compressed write code. */
-#endif
-
-#if defined(PNG_FLOATING_POINT_SUPPORTED) && \
- !defined(PNG_FIXED_POINT_MACRO_SUPPORTED) && \
- (defined(PNG_gAMA_SUPPORTED) || defined(PNG_cHRM_SUPPORTED) || \
- defined(PNG_sCAL_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) || \
- defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)) || \
- (defined(PNG_sCAL_SUPPORTED) && \
- defined(PNG_FLOATING_ARITHMETIC_SUPPORTED))
-PNG_INTERNAL_FUNCTION(png_fixed_point,png_fixed,(png_const_structrp png_ptr,
- double fp, png_const_charp text),PNG_EMPTY);
-#endif
-
-/* Check the user version string for compatibility, returns false if the version
- * numbers aren't compatible.
- */
-PNG_INTERNAL_FUNCTION(int,png_user_version_check,(png_structrp png_ptr,
- png_const_charp user_png_ver),PNG_EMPTY);
-
-/* Internal base allocator - no messages, NULL on failure to allocate. This
- * does, however, call the application provided allocator and that could call
- * png_error (although that would be a bug in the application implementation.)
- */
-PNG_INTERNAL_FUNCTION(png_voidp,png_malloc_base,(png_const_structrp png_ptr,
- png_alloc_size_t size),PNG_ALLOCATED);
-
-#if defined(PNG_TEXT_SUPPORTED) || defined(PNG_sPLT_SUPPORTED) ||\
- defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED)
-/* Internal array allocator, outputs no error or warning messages on failure,
- * just returns NULL.
- */
-PNG_INTERNAL_FUNCTION(png_voidp,png_malloc_array,(png_const_structrp png_ptr,
- int nelements, size_t element_size),PNG_ALLOCATED);
-
-/* The same but an existing array is extended by add_elements. This function
- * also memsets the new elements to 0 and copies the old elements. The old
- * array is not freed or altered.
- */
-PNG_INTERNAL_FUNCTION(png_voidp,png_realloc_array,(png_const_structrp png_ptr,
- png_const_voidp array, int old_elements, int add_elements,
- size_t element_size),PNG_ALLOCATED);
-#endif /* text, sPLT or unknown chunks */
-
-/* Magic to create a struct when there is no struct to call the user supplied
- * memory allocators. Because error handling has not been set up the memory
- * handlers can't safely call png_error, but this is an obscure and undocumented
- * restriction so libpng has to assume that the 'free' handler, at least, might
- * call png_error.
- */
-PNG_INTERNAL_FUNCTION(png_structp,png_create_png_struct,
- (png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn,
- png_error_ptr warn_fn, png_voidp mem_ptr, png_malloc_ptr malloc_fn,
- png_free_ptr free_fn),PNG_ALLOCATED);
-
-/* Free memory from internal libpng struct */
-PNG_INTERNAL_FUNCTION(void,png_destroy_png_struct,(png_structrp png_ptr),
- PNG_EMPTY);
-
-/* Free an allocated jmp_buf (always succeeds) */
-PNG_INTERNAL_FUNCTION(void,png_free_jmpbuf,(png_structrp png_ptr),PNG_EMPTY);
-
-/* Function to allocate memory for zlib. PNGAPI is disallowed. */
-PNG_INTERNAL_FUNCTION(voidpf,png_zalloc,(voidpf png_ptr, uInt items, uInt size),
- PNG_ALLOCATED);
-
-/* Function to free memory for zlib. PNGAPI is disallowed. */
-PNG_INTERNAL_FUNCTION(void,png_zfree,(voidpf png_ptr, voidpf ptr),PNG_EMPTY);
-
-/* Next four functions are used internally as callbacks. PNGCBAPI is required
- * but not PNG_EXPORT. PNGAPI added at libpng version 1.2.3, changed to
- * PNGCBAPI at 1.5.0
- */
-
-PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_read_data,(png_structp png_ptr,
- png_bytep data, size_t length),PNG_EMPTY);
-
-#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
-PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_push_fill_buffer,(png_structp png_ptr,
- png_bytep buffer, size_t length),PNG_EMPTY);
-#endif
-
-PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_write_data,(png_structp png_ptr,
- png_bytep data, size_t length),PNG_EMPTY);
-
-#ifdef PNG_WRITE_FLUSH_SUPPORTED
-# ifdef PNG_STDIO_SUPPORTED
-PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_flush,(png_structp png_ptr),
- PNG_EMPTY);
-# endif
-#endif
-
-/* Reset the CRC variable */
-PNG_INTERNAL_FUNCTION(void,png_reset_crc,(png_structrp png_ptr),PNG_EMPTY);
-
-/* Write the "data" buffer to whatever output you are using */
-PNG_INTERNAL_FUNCTION(void,png_write_data,(png_structrp png_ptr,
- png_const_bytep data, size_t length),PNG_EMPTY);
-
-/* Read and check the PNG file signature */
-PNG_INTERNAL_FUNCTION(void,png_read_sig,(png_structrp png_ptr,
- png_inforp info_ptr),PNG_EMPTY);
-
-/* Read the chunk header (length + type name) */
-PNG_INTERNAL_FUNCTION(png_uint_32,png_read_chunk_header,(png_structrp png_ptr),
- PNG_EMPTY);
-
-/* Read data from whatever input you are using into the "data" buffer */
-PNG_INTERNAL_FUNCTION(void,png_read_data,(png_structrp png_ptr, png_bytep data,
- size_t length),PNG_EMPTY);
-
-/* Read bytes into buf, and update png_ptr->crc */
-PNG_INTERNAL_FUNCTION(void,png_crc_read,(png_structrp png_ptr, png_bytep buf,
- png_uint_32 length),PNG_EMPTY);
-
-/* Read "skip" bytes, read the file crc, and (optionally) verify png_ptr->crc */
-PNG_INTERNAL_FUNCTION(int,png_crc_finish,(png_structrp png_ptr,
- png_uint_32 skip),PNG_EMPTY);
-
-/* Read the CRC from the file and compare it to the libpng calculated CRC */
-PNG_INTERNAL_FUNCTION(int,png_crc_error,(png_structrp png_ptr),PNG_EMPTY);
-
-/* Calculate the CRC over a section of data. Note that we are only
- * passing a maximum of 64K on systems that have this as a memory limit,
- * since this is the maximum buffer size we can specify.
- */
-PNG_INTERNAL_FUNCTION(void,png_calculate_crc,(png_structrp png_ptr,
- png_const_bytep ptr, size_t length),PNG_EMPTY);
-
-#ifdef PNG_WRITE_FLUSH_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_flush,(png_structrp png_ptr),PNG_EMPTY);
-#endif
-
-/* Write various chunks */
-
-/* Write the IHDR chunk, and update the png_struct with the necessary
- * information.
- */
-PNG_INTERNAL_FUNCTION(void,png_write_IHDR,(png_structrp png_ptr,
- png_uint_32 width, png_uint_32 height, int bit_depth, int color_type,
- int compression_method, int filter_method, int interlace_method),PNG_EMPTY);
-
-PNG_INTERNAL_FUNCTION(void,png_write_PLTE,(png_structrp png_ptr,
- png_const_colorp palette, png_uint_32 num_pal),PNG_EMPTY);
-
-PNG_INTERNAL_FUNCTION(void,png_compress_IDAT,(png_structrp png_ptr,
- png_const_bytep row_data, png_alloc_size_t row_data_length, int flush),
- PNG_EMPTY);
-
-PNG_INTERNAL_FUNCTION(void,png_write_IEND,(png_structrp png_ptr),PNG_EMPTY);
-
-#ifdef PNG_WRITE_gAMA_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_gAMA_fixed,(png_structrp png_ptr,
- png_fixed_point file_gamma),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_sBIT_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_sBIT,(png_structrp png_ptr,
- png_const_color_8p sbit, int color_type),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_cHRM_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_cHRM_fixed,(png_structrp png_ptr,
- const png_xy *xy), PNG_EMPTY);
- /* The xy value must have been previously validated */
-#endif
-
-#ifdef PNG_WRITE_sRGB_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_sRGB,(png_structrp png_ptr,
- int intent),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_eXIf_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_eXIf,(png_structrp png_ptr,
- png_bytep exif, int num_exif),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_iCCP_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_iCCP,(png_structrp png_ptr,
- png_const_charp name, png_const_bytep profile), PNG_EMPTY);
- /* The profile must have been previously validated for correctness, the
- * length comes from the first four bytes. Only the base, deflate,
- * compression is supported.
- */
-#endif
-
-#ifdef PNG_WRITE_sPLT_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_sPLT,(png_structrp png_ptr,
- png_const_sPLT_tp palette),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_tRNS_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_tRNS,(png_structrp png_ptr,
- png_const_bytep trans, png_const_color_16p values, int number,
- int color_type),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_bKGD_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_bKGD,(png_structrp png_ptr,
- png_const_color_16p values, int color_type),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_hIST_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_hIST,(png_structrp png_ptr,
- png_const_uint_16p hist, int num_hist),PNG_EMPTY);
-#endif
-
-/* Chunks that have keywords */
-#ifdef PNG_WRITE_tEXt_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_tEXt,(png_structrp png_ptr,
- png_const_charp key, png_const_charp text, size_t text_len),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_zTXt_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_zTXt,(png_structrp png_ptr, png_const_charp
- key, png_const_charp text, int compression),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_iTXt_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_iTXt,(png_structrp png_ptr,
- int compression, png_const_charp key, png_const_charp lang,
- png_const_charp lang_key, png_const_charp text),PNG_EMPTY);
-#endif
-
-#ifdef PNG_TEXT_SUPPORTED /* Added at version 1.0.14 and 1.2.4 */
-PNG_INTERNAL_FUNCTION(int,png_set_text_2,(png_const_structrp png_ptr,
- png_inforp info_ptr, png_const_textp text_ptr, int num_text),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_oFFs_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_oFFs,(png_structrp png_ptr,
- png_int_32 x_offset, png_int_32 y_offset, int unit_type),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_pCAL_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_pCAL,(png_structrp png_ptr,
- png_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams,
- png_const_charp units, png_charpp params),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_pHYs_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_pHYs,(png_structrp png_ptr,
- png_uint_32 x_pixels_per_unit, png_uint_32 y_pixels_per_unit,
- int unit_type),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_tIME_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_tIME,(png_structrp png_ptr,
- png_const_timep mod_time),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_sCAL_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_write_sCAL_s,(png_structrp png_ptr,
- int unit, png_const_charp width, png_const_charp height),PNG_EMPTY);
-#endif
-
-/* Called when finished processing a row of data */
-PNG_INTERNAL_FUNCTION(void,png_write_finish_row,(png_structrp png_ptr),
- PNG_EMPTY);
-
-/* Internal use only. Called before first row of data */
-PNG_INTERNAL_FUNCTION(void,png_write_start_row,(png_structrp png_ptr),
- PNG_EMPTY);
-
-/* Combine a row of data, dealing with alpha, etc. if requested. 'row' is an
- * array of png_ptr->width pixels. If the image is not interlaced or this
- * is the final pass this just does a memcpy, otherwise the "display" flag
- * is used to determine whether to copy pixels that are not in the current pass.
- *
- * Because 'png_do_read_interlace' (below) replicates pixels this allows this
- * function to achieve the documented 'blocky' appearance during interlaced read
- * if display is 1 and the 'sparkle' appearance, where existing pixels in 'row'
- * are not changed if they are not in the current pass, when display is 0.
- *
- * 'display' must be 0 or 1, otherwise the memcpy will be done regardless.
- *
- * The API always reads from the png_struct row buffer and always assumes that
- * it is full width (png_do_read_interlace has already been called.)
- *
- * This function is only ever used to write to row buffers provided by the
- * caller of the relevant libpng API and the row must have already been
- * transformed by the read transformations.
- *
- * The PNG_USE_COMPILE_TIME_MASKS option causes generation of pre-computed
- * bitmasks for use within the code, otherwise runtime generated masks are used.
- * The default is compile time masks.
- */
-#ifndef PNG_USE_COMPILE_TIME_MASKS
-# define PNG_USE_COMPILE_TIME_MASKS 1
-#endif
-PNG_INTERNAL_FUNCTION(void,png_combine_row,(png_const_structrp png_ptr,
- png_bytep row, int display),PNG_EMPTY);
-
-#ifdef PNG_READ_INTERLACING_SUPPORTED
-/* Expand an interlaced row: the 'row_info' describes the pass data that has
- * been read in and must correspond to the pixels in 'row', the pixels are
- * expanded (moved apart) in 'row' to match the final layout, when doing this
- * the pixels are *replicated* to the intervening space. This is essential for
- * the correct operation of png_combine_row, above.
- */
-PNG_INTERNAL_FUNCTION(void,png_do_read_interlace,(png_row_infop row_info,
- png_bytep row, int pass, png_uint_32 transformations),PNG_EMPTY);
-#endif
-
-/* GRR TO DO (2.0 or whenever): simplify other internal calling interfaces */
-
-#ifdef PNG_WRITE_INTERLACING_SUPPORTED
-/* Grab pixels out of a row for an interlaced pass */
-PNG_INTERNAL_FUNCTION(void,png_do_write_interlace,(png_row_infop row_info,
- png_bytep row, int pass),PNG_EMPTY);
-#endif
-
-/* Unfilter a row: check the filter value before calling this, there is no point
- * calling it for PNG_FILTER_VALUE_NONE.
- */
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row,(png_structrp pp, png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row, int filter),PNG_EMPTY);
-
-#if PNG_ARM_NEON_OPT > 0
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_neon,(png_row_infop row_info,
- png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_neon,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_neon,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_neon,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_neon,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_neon,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_neon,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-#endif
-
-#if PNG_MIPS_MSA_OPT > 0
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_msa,(png_row_infop row_info,
- png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_msa,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_msa,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_msa,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_msa,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_msa,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_msa,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-#endif
-
-#if PNG_POWERPC_VSX_OPT > 0
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_vsx,(png_row_infop row_info,
- png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_vsx,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_vsx,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_vsx,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_vsx,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_vsx,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_vsx,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-#endif
-
-#if PNG_INTEL_SSE_IMPLEMENTATION > 0
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_sse2,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_sse2,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_sse2,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_sse2,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_sse2,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_sse2,(png_row_infop
- row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
-#endif
-
-/* Choose the best filter to use and filter the row data */
-PNG_INTERNAL_FUNCTION(void,png_write_find_filter,(png_structrp png_ptr,
- png_row_infop row_info),PNG_EMPTY);
-
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_read_IDAT_data,(png_structrp png_ptr,
- png_bytep output, png_alloc_size_t avail_out),PNG_EMPTY);
- /* Read 'avail_out' bytes of data from the IDAT stream. If the output buffer
- * is NULL the function checks, instead, for the end of the stream. In this
- * case a benign error will be issued if the stream end is not found or if
- * extra data has to be consumed.
- */
-PNG_INTERNAL_FUNCTION(void,png_read_finish_IDAT,(png_structrp png_ptr),
- PNG_EMPTY);
- /* This cleans up when the IDAT LZ stream does not end when the last image
- * byte is read; there is still some pending input.
- */
-
-PNG_INTERNAL_FUNCTION(void,png_read_finish_row,(png_structrp png_ptr),
- PNG_EMPTY);
- /* Finish a row while reading, dealing with interlacing passes, etc. */
-#endif /* SEQUENTIAL_READ */
-
-/* Initialize the row buffers, etc. */
-PNG_INTERNAL_FUNCTION(void,png_read_start_row,(png_structrp png_ptr),PNG_EMPTY);
-
-#if ZLIB_VERNUM >= 0x1240
-PNG_INTERNAL_FUNCTION(int,png_zlib_inflate,(png_structrp png_ptr, int flush),
- PNG_EMPTY);
-# define PNG_INFLATE(pp, flush) png_zlib_inflate(pp, flush)
-#else /* Zlib < 1.2.4 */
-# define PNG_INFLATE(pp, flush) inflate(&(pp)->zstream, flush)
-#endif /* Zlib < 1.2.4 */
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
-/* Optional call to update the users info structure */
-PNG_INTERNAL_FUNCTION(void,png_read_transform_info,(png_structrp png_ptr,
- png_inforp info_ptr),PNG_EMPTY);
-#endif
-
-/* Shared transform functions, defined in pngtran.c */
-#if defined(PNG_WRITE_FILLER_SUPPORTED) || \
- defined(PNG_READ_STRIP_ALPHA_SUPPORTED)
-PNG_INTERNAL_FUNCTION(void,png_do_strip_channel,(png_row_infop row_info,
- png_bytep row, int at_start),PNG_EMPTY);
-#endif
-
-#ifdef PNG_16BIT_SUPPORTED
-#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED)
-PNG_INTERNAL_FUNCTION(void,png_do_swap,(png_row_infop row_info,
- png_bytep row),PNG_EMPTY);
-#endif
-#endif
-
-#if defined(PNG_READ_PACKSWAP_SUPPORTED) || \
- defined(PNG_WRITE_PACKSWAP_SUPPORTED)
-PNG_INTERNAL_FUNCTION(void,png_do_packswap,(png_row_infop row_info,
- png_bytep row),PNG_EMPTY);
-#endif
-
-#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED)
-PNG_INTERNAL_FUNCTION(void,png_do_invert,(png_row_infop row_info,
- png_bytep row),PNG_EMPTY);
-#endif
-
-#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED)
-PNG_INTERNAL_FUNCTION(void,png_do_bgr,(png_row_infop row_info,
- png_bytep row),PNG_EMPTY);
-#endif
-
-/* The following decodes the appropriate chunks, and does error correction,
- * then calls the appropriate callback for the chunk if it is valid.
- */
-
-/* Decode the IHDR chunk */
-PNG_INTERNAL_FUNCTION(void,png_handle_IHDR,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_handle_PLTE,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_handle_IEND,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-
-#ifdef PNG_READ_bKGD_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_bKGD,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_cHRM_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_cHRM,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_eXIf_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_eXIf,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_gAMA_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_gAMA,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_hIST_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_hIST,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_iCCP_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_iCCP,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif /* READ_iCCP */
-
-#ifdef PNG_READ_iTXt_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_iTXt,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_oFFs_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_oFFs,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_pCAL_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_pCAL,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_pHYs_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_pHYs,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_sBIT_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_sBIT,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_sCAL_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_sCAL,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_sPLT_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_sPLT,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif /* READ_sPLT */
-
-#ifdef PNG_READ_sRGB_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_sRGB,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_tEXt_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_tEXt,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_tIME_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_tIME,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_tRNS_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_tRNS,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_zTXt_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_handle_zTXt,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif
-
-PNG_INTERNAL_FUNCTION(void,png_check_chunk_name,(png_const_structrp png_ptr,
- png_uint_32 chunk_name),PNG_EMPTY);
-
-PNG_INTERNAL_FUNCTION(void,png_check_chunk_length,(png_const_structrp png_ptr,
- png_uint_32 chunk_length),PNG_EMPTY);
-
-PNG_INTERNAL_FUNCTION(void,png_handle_unknown,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length, int keep),PNG_EMPTY);
- /* This is the function that gets called for unknown chunks. The 'keep'
- * argument is either non-zero for a known chunk that has been set to be
- * handled as unknown or zero for an unknown chunk. By default the function
- * just skips the chunk or errors out if it is critical.
- */
-
-#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) ||\
- defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED)
-PNG_INTERNAL_FUNCTION(int,png_chunk_unknown_handling,
- (png_const_structrp png_ptr, png_uint_32 chunk_name),PNG_EMPTY);
- /* Exactly as the API png_handle_as_unknown() except that the argument is a
- * 32-bit chunk name, not a string.
- */
-#endif /* READ_UNKNOWN_CHUNKS || HANDLE_AS_UNKNOWN */
-
-/* Handle the transformations for reading and writing */
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_read_transformations,(png_structrp png_ptr,
- png_row_infop row_info),PNG_EMPTY);
-#endif
-#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_write_transformations,(png_structrp png_ptr,
- png_row_infop row_info),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_init_read_transformations,(png_structrp png_ptr),
- PNG_EMPTY);
-#endif
-
-#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_push_read_chunk,(png_structrp png_ptr,
- png_inforp info_ptr),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_read_sig,(png_structrp png_ptr,
- png_inforp info_ptr),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_check_crc,(png_structrp png_ptr),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_save_buffer,(png_structrp png_ptr),
- PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_restore_buffer,(png_structrp png_ptr,
- png_bytep buffer, size_t buffer_length),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_read_IDAT,(png_structrp png_ptr),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_process_IDAT_data,(png_structrp png_ptr,
- png_bytep buffer, size_t buffer_length),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_process_row,(png_structrp png_ptr),
- PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_handle_unknown,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_have_info,(png_structrp png_ptr,
- png_inforp info_ptr),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_have_end,(png_structrp png_ptr,
- png_inforp info_ptr),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_have_row,(png_structrp png_ptr,
- png_bytep row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_read_end,(png_structrp png_ptr,
- png_inforp info_ptr),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_process_some_data,(png_structrp png_ptr,
- png_inforp info_ptr),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_read_push_finish_row,(png_structrp png_ptr),
- PNG_EMPTY);
-# ifdef PNG_READ_tEXt_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_push_handle_tEXt,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_read_tEXt,(png_structrp png_ptr,
- png_inforp info_ptr),PNG_EMPTY);
-# endif
-# ifdef PNG_READ_zTXt_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_push_handle_zTXt,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_read_zTXt,(png_structrp png_ptr,
- png_inforp info_ptr),PNG_EMPTY);
-# endif
-# ifdef PNG_READ_iTXt_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_push_handle_iTXt,(png_structrp png_ptr,
- png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_read_iTXt,(png_structrp png_ptr,
- png_inforp info_ptr),PNG_EMPTY);
-# endif
-
-#endif /* PROGRESSIVE_READ */
-
-/* Added at libpng version 1.6.0 */
-#ifdef PNG_GAMMA_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_colorspace_set_gamma,(png_const_structrp png_ptr,
- png_colorspacerp colorspace, png_fixed_point gAMA), PNG_EMPTY);
- /* Set the colorspace gamma with a value provided by the application or by
- * the gAMA chunk on read. The value will override anything set by an ICC
- * profile.
- */
-
-PNG_INTERNAL_FUNCTION(void,png_colorspace_sync_info,(png_const_structrp png_ptr,
- png_inforp info_ptr), PNG_EMPTY);
- /* Synchronize the info 'valid' flags with the colorspace */
-
-PNG_INTERNAL_FUNCTION(void,png_colorspace_sync,(png_const_structrp png_ptr,
- png_inforp info_ptr), PNG_EMPTY);
- /* Copy the png_struct colorspace to the info_struct and call the above to
- * synchronize the flags. Checks for NULL info_ptr and does nothing.
- */
-#endif
-
-/* Added at libpng version 1.4.0 */
-#ifdef PNG_COLORSPACE_SUPPORTED
-/* These internal functions are for maintaining the colorspace structure within
- * a png_info or png_struct (or, indeed, both).
- */
-PNG_INTERNAL_FUNCTION(int,png_colorspace_set_chromaticities,
- (png_const_structrp png_ptr, png_colorspacerp colorspace, const png_xy *xy,
- int preferred), PNG_EMPTY);
-
-PNG_INTERNAL_FUNCTION(int,png_colorspace_set_endpoints,
- (png_const_structrp png_ptr, png_colorspacerp colorspace, const png_XYZ *XYZ,
- int preferred), PNG_EMPTY);
-
-#ifdef PNG_sRGB_SUPPORTED
-PNG_INTERNAL_FUNCTION(int,png_colorspace_set_sRGB,(png_const_structrp png_ptr,
- png_colorspacerp colorspace, int intent), PNG_EMPTY);
- /* This does set the colorspace gAMA and cHRM values too, but doesn't set the
- * flags to write them, if it returns false there was a problem and an error
- * message has already been output (but the colorspace may still need to be
- * synced to record the invalid flag).
- */
-#endif /* sRGB */
-
-#ifdef PNG_iCCP_SUPPORTED
-PNG_INTERNAL_FUNCTION(int,png_colorspace_set_ICC,(png_const_structrp png_ptr,
- png_colorspacerp colorspace, png_const_charp name,
- png_uint_32 profile_length, png_const_bytep profile, int color_type),
- PNG_EMPTY);
- /* The 'name' is used for information only */
-
-/* Routines for checking parts of an ICC profile. */
-#ifdef PNG_READ_iCCP_SUPPORTED
-PNG_INTERNAL_FUNCTION(int,png_icc_check_length,(png_const_structrp png_ptr,
- png_colorspacerp colorspace, png_const_charp name,
- png_uint_32 profile_length), PNG_EMPTY);
-#endif /* READ_iCCP */
-PNG_INTERNAL_FUNCTION(int,png_icc_check_header,(png_const_structrp png_ptr,
- png_colorspacerp colorspace, png_const_charp name,
- png_uint_32 profile_length,
- png_const_bytep profile /* first 132 bytes only */, int color_type),
- PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(int,png_icc_check_tag_table,(png_const_structrp png_ptr,
- png_colorspacerp colorspace, png_const_charp name,
- png_uint_32 profile_length,
- png_const_bytep profile /* header plus whole tag table */), PNG_EMPTY);
-#ifdef PNG_sRGB_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_icc_set_sRGB,(
- png_const_structrp png_ptr, png_colorspacerp colorspace,
- png_const_bytep profile, uLong adler), PNG_EMPTY);
- /* 'adler' is the Adler32 checksum of the uncompressed profile data. It may
- * be zero to indicate that it is not available. It is used, if provided,
- * as a fast check on the profile when checking to see if it is sRGB.
- */
-#endif
-#endif /* iCCP */
-
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_colorspace_set_rgb_coefficients,
- (png_structrp png_ptr), PNG_EMPTY);
- /* Set the rgb_to_gray coefficients from the colorspace Y values */
-#endif /* READ_RGB_TO_GRAY */
-#endif /* COLORSPACE */
-
-/* Added at libpng version 1.4.0 */
-PNG_INTERNAL_FUNCTION(void,png_check_IHDR,(png_const_structrp png_ptr,
- png_uint_32 width, png_uint_32 height, int bit_depth,
- int color_type, int interlace_type, int compression_type,
- int filter_type),PNG_EMPTY);
-
-/* Added at libpng version 1.5.10 */
-#if defined(PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED) || \
- defined(PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED)
-PNG_INTERNAL_FUNCTION(void,png_do_check_palette_indexes,
- (png_structrp png_ptr, png_row_infop row_info),PNG_EMPTY);
-#endif
-
-#if defined(PNG_FLOATING_POINT_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED)
-PNG_INTERNAL_FUNCTION(void,png_fixed_error,(png_const_structrp png_ptr,
- png_const_charp name),PNG_NORETURN);
-#endif
-
-/* Puts 'string' into 'buffer' at buffer[pos], taking care never to overwrite
- * the end. Always leaves the buffer nul terminated. Never errors out (and
- * there is no error code.)
- */
-PNG_INTERNAL_FUNCTION(size_t,png_safecat,(png_charp buffer, size_t bufsize,
- size_t pos, png_const_charp string),PNG_EMPTY);
-
-/* Various internal functions to handle formatted warning messages, currently
- * only implemented for warnings.
- */
-#if defined(PNG_WARNINGS_SUPPORTED) || defined(PNG_TIME_RFC1123_SUPPORTED)
-/* Utility to dump an unsigned value into a buffer, given a start pointer and
- * and end pointer (which should point just *beyond* the end of the buffer!)
- * Returns the pointer to the start of the formatted string. This utility only
- * does unsigned values.
- */
-PNG_INTERNAL_FUNCTION(png_charp,png_format_number,(png_const_charp start,
- png_charp end, int format, png_alloc_size_t number),PNG_EMPTY);
-
-/* Convenience macro that takes an array: */
-#define PNG_FORMAT_NUMBER(buffer,format,number) \
- png_format_number(buffer, buffer + (sizeof buffer), format, number)
-
-/* Suggested size for a number buffer (enough for 64 bits and a sign!) */
-#define PNG_NUMBER_BUFFER_SIZE 24
-
-/* These are the integer formats currently supported, the name is formed from
- * the standard printf(3) format string.
- */
-#define PNG_NUMBER_FORMAT_u 1 /* chose unsigned API! */
-#define PNG_NUMBER_FORMAT_02u 2
-#define PNG_NUMBER_FORMAT_d 1 /* chose signed API! */
-#define PNG_NUMBER_FORMAT_02d 2
-#define PNG_NUMBER_FORMAT_x 3
-#define PNG_NUMBER_FORMAT_02x 4
-#define PNG_NUMBER_FORMAT_fixed 5 /* choose the signed API */
-#endif
-
-#ifdef PNG_WARNINGS_SUPPORTED
-/* New defines and members adding in libpng-1.5.4 */
-# define PNG_WARNING_PARAMETER_SIZE 32
-# define PNG_WARNING_PARAMETER_COUNT 8 /* Maximum 9; see pngerror.c */
-
-/* An l-value of this type has to be passed to the APIs below to cache the
- * values of the parameters to a formatted warning message.
- */
-typedef char png_warning_parameters[PNG_WARNING_PARAMETER_COUNT][
- PNG_WARNING_PARAMETER_SIZE];
-
-PNG_INTERNAL_FUNCTION(void,png_warning_parameter,(png_warning_parameters p,
- int number, png_const_charp string),PNG_EMPTY);
- /* Parameters are limited in size to PNG_WARNING_PARAMETER_SIZE characters,
- * including the trailing '\0'.
- */
-PNG_INTERNAL_FUNCTION(void,png_warning_parameter_unsigned,
- (png_warning_parameters p, int number, int format, png_alloc_size_t value),
- PNG_EMPTY);
- /* Use png_alloc_size_t because it is an unsigned type as big as any we
- * need to output. Use the following for a signed value.
- */
-PNG_INTERNAL_FUNCTION(void,png_warning_parameter_signed,
- (png_warning_parameters p, int number, int format, png_int_32 value),
- PNG_EMPTY);
-
-PNG_INTERNAL_FUNCTION(void,png_formatted_warning,(png_const_structrp png_ptr,
- png_warning_parameters p, png_const_charp message),PNG_EMPTY);
- /* 'message' follows the X/Open approach of using @1, @2 to insert
- * parameters previously supplied using the above functions. Errors in
- * specifying the parameters will simply result in garbage substitutions.
- */
-#endif
-
-#ifdef PNG_BENIGN_ERRORS_SUPPORTED
-/* Application errors (new in 1.6); use these functions (declared below) for
- * errors in the parameters or order of API function calls on read. The
- * 'warning' should be used for an error that can be handled completely; the
- * 'error' for one which can be handled safely but which may lose application
- * information or settings.
- *
- * By default these both result in a png_error call prior to release, while in a
- * released version the 'warning' is just a warning. However if the application
- * explicitly disables benign errors (explicitly permitting the code to lose
- * information) they both turn into warnings.
- *
- * If benign errors aren't supported they end up as the corresponding base call
- * (png_warning or png_error.)
- */
-PNG_INTERNAL_FUNCTION(void,png_app_warning,(png_const_structrp png_ptr,
- png_const_charp message),PNG_EMPTY);
- /* The application provided invalid parameters to an API function or called
- * an API function at the wrong time, libpng can completely recover.
- */
-
-PNG_INTERNAL_FUNCTION(void,png_app_error,(png_const_structrp png_ptr,
- png_const_charp message),PNG_EMPTY);
- /* As above but libpng will ignore the call, or attempt some other partial
- * recovery from the error.
- */
-#else
-# define png_app_warning(pp,s) png_warning(pp,s)
-# define png_app_error(pp,s) png_error(pp,s)
-#endif
-
-PNG_INTERNAL_FUNCTION(void,png_chunk_report,(png_const_structrp png_ptr,
- png_const_charp message, int error),PNG_EMPTY);
- /* Report a recoverable issue in chunk data. On read this is used to report
- * a problem found while reading a particular chunk and the
- * png_chunk_benign_error or png_chunk_warning function is used as
- * appropriate. On write this is used to report an error that comes from
- * data set via an application call to a png_set_ API and png_app_error or
- * png_app_warning is used as appropriate.
- *
- * The 'error' parameter must have one of the following values:
- */
-#define PNG_CHUNK_WARNING 0 /* never an error */
-#define PNG_CHUNK_WRITE_ERROR 1 /* an error only on write */
-#define PNG_CHUNK_ERROR 2 /* always an error */
-
-/* ASCII to FP interfaces, currently only implemented if sCAL
- * support is required.
- */
-#if defined(PNG_sCAL_SUPPORTED)
-/* MAX_DIGITS is actually the maximum number of characters in an sCAL
- * width or height, derived from the precision (number of significant
- * digits - a build time settable option) and assumptions about the
- * maximum ridiculous exponent.
- */
-#define PNG_sCAL_MAX_DIGITS (PNG_sCAL_PRECISION+1/*.*/+1/*E*/+10/*exponent*/)
-
-#ifdef PNG_FLOATING_POINT_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_ascii_from_fp,(png_const_structrp png_ptr,
- png_charp ascii, size_t size, double fp, unsigned int precision),
- PNG_EMPTY);
-#endif /* FLOATING_POINT */
-
-#ifdef PNG_FIXED_POINT_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_ascii_from_fixed,(png_const_structrp png_ptr,
- png_charp ascii, size_t size, png_fixed_point fp),PNG_EMPTY);
-#endif /* FIXED_POINT */
-#endif /* sCAL */
-
-#if defined(PNG_sCAL_SUPPORTED) || defined(PNG_pCAL_SUPPORTED)
-/* An internal API to validate the format of a floating point number.
- * The result is the index of the next character. If the number is
- * not valid it will be the index of a character in the supposed number.
- *
- * The format of a number is defined in the PNG extensions specification
- * and this API is strictly conformant to that spec, not anyone elses!
- *
- * The format as a regular expression is:
- *
- * [+-]?[0-9]+.?([Ee][+-]?[0-9]+)?
- *
- * or:
- *
- * [+-]?.[0-9]+(.[0-9]+)?([Ee][+-]?[0-9]+)?
- *
- * The complexity is that either integer or fraction must be present and the
- * fraction is permitted to have no digits only if the integer is present.
- *
- * NOTE: The dangling E problem.
- * There is a PNG valid floating point number in the following:
- *
- * PNG floating point numbers are not greedy.
- *
- * Working this out requires *TWO* character lookahead (because of the
- * sign), the parser does not do this - it will fail at the 'r' - this
- * doesn't matter for PNG sCAL chunk values, but it requires more care
- * if the value were ever to be embedded in something more complex. Use
- * ANSI-C strtod if you need the lookahead.
- */
-/* State table for the parser. */
-#define PNG_FP_INTEGER 0 /* before or in integer */
-#define PNG_FP_FRACTION 1 /* before or in fraction */
-#define PNG_FP_EXPONENT 2 /* before or in exponent */
-#define PNG_FP_STATE 3 /* mask for the above */
-#define PNG_FP_SAW_SIGN 4 /* Saw +/- in current state */
-#define PNG_FP_SAW_DIGIT 8 /* Saw a digit in current state */
-#define PNG_FP_SAW_DOT 16 /* Saw a dot in current state */
-#define PNG_FP_SAW_E 32 /* Saw an E (or e) in current state */
-#define PNG_FP_SAW_ANY 60 /* Saw any of the above 4 */
-
-/* These three values don't affect the parser. They are set but not used.
- */
-#define PNG_FP_WAS_VALID 64 /* Preceding substring is a valid fp number */
-#define PNG_FP_NEGATIVE 128 /* A negative number, including "-0" */
-#define PNG_FP_NONZERO 256 /* A non-zero value */
-#define PNG_FP_STICKY 448 /* The above three flags */
-
-/* This is available for the caller to store in 'state' if required. Do not
- * call the parser after setting it (the parser sometimes clears it.)
- */
-#define PNG_FP_INVALID 512 /* Available for callers as a distinct value */
-
-/* Result codes for the parser (boolean - true meants ok, false means
- * not ok yet.)
- */
-#define PNG_FP_MAYBE 0 /* The number may be valid in the future */
-#define PNG_FP_OK 1 /* The number is valid */
-
-/* Tests on the sticky non-zero and negative flags. To pass these checks
- * the state must also indicate that the whole number is valid - this is
- * achieved by testing PNG_FP_SAW_DIGIT (see the implementation for why this
- * is equivalent to PNG_FP_OK above.)
- */
-#define PNG_FP_NZ_MASK (PNG_FP_SAW_DIGIT | PNG_FP_NEGATIVE | PNG_FP_NONZERO)
- /* NZ_MASK: the string is valid and a non-zero negative value */
-#define PNG_FP_Z_MASK (PNG_FP_SAW_DIGIT | PNG_FP_NONZERO)
- /* Z MASK: the string is valid and a non-zero value. */
- /* PNG_FP_SAW_DIGIT: the string is valid. */
-#define PNG_FP_IS_ZERO(state) (((state) & PNG_FP_Z_MASK) == PNG_FP_SAW_DIGIT)
-#define PNG_FP_IS_POSITIVE(state) (((state) & PNG_FP_NZ_MASK) == PNG_FP_Z_MASK)
-#define PNG_FP_IS_NEGATIVE(state) (((state) & PNG_FP_NZ_MASK) == PNG_FP_NZ_MASK)
-
-/* The actual parser. This can be called repeatedly. It updates
- * the index into the string and the state variable (which must
- * be initialized to 0). It returns a result code, as above. There
- * is no point calling the parser any more if it fails to advance to
- * the end of the string - it is stuck on an invalid character (or
- * terminated by '\0').
- *
- * Note that the pointer will consume an E or even an E+ and then leave
- * a 'maybe' state even though a preceding integer.fraction is valid.
- * The PNG_FP_WAS_VALID flag indicates that a preceding substring was
- * a valid number. It's possible to recover from this by calling
- * the parser again (from the start, with state 0) but with a string
- * that omits the last character (i.e. set the size to the index of
- * the problem character.) This has not been tested within libpng.
- */
-PNG_INTERNAL_FUNCTION(int,png_check_fp_number,(png_const_charp string,
- size_t size, int *statep, png_size_tp whereami),PNG_EMPTY);
-
-/* This is the same but it checks a complete string and returns true
- * only if it just contains a floating point number. As of 1.5.4 this
- * function also returns the state at the end of parsing the number if
- * it was valid (otherwise it returns 0.) This can be used for testing
- * for negative or zero values using the sticky flag.
- */
-PNG_INTERNAL_FUNCTION(int,png_check_fp_string,(png_const_charp string,
- size_t size),PNG_EMPTY);
-#endif /* pCAL || sCAL */
-
-#if defined(PNG_GAMMA_SUPPORTED) ||\
- defined(PNG_INCH_CONVERSIONS_SUPPORTED) || defined(PNG_READ_pHYs_SUPPORTED)
-/* Added at libpng version 1.5.0 */
-/* This is a utility to provide a*times/div (rounded) and indicate
- * if there is an overflow. The result is a boolean - false (0)
- * for overflow, true (1) if no overflow, in which case *res
- * holds the result.
- */
-PNG_INTERNAL_FUNCTION(int,png_muldiv,(png_fixed_point_p res, png_fixed_point a,
- png_int_32 multiplied_by, png_int_32 divided_by),PNG_EMPTY);
-#endif
-
-#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_INCH_CONVERSIONS_SUPPORTED)
-/* Same deal, but issue a warning on overflow and return 0. */
-PNG_INTERNAL_FUNCTION(png_fixed_point,png_muldiv_warn,
- (png_const_structrp png_ptr, png_fixed_point a, png_int_32 multiplied_by,
- png_int_32 divided_by),PNG_EMPTY);
-#endif
-
-#ifdef PNG_GAMMA_SUPPORTED
-/* Calculate a reciprocal - used for gamma values. This returns
- * 0 if the argument is 0 in order to maintain an undefined value;
- * there are no warnings.
- */
-PNG_INTERNAL_FUNCTION(png_fixed_point,png_reciprocal,(png_fixed_point a),
- PNG_EMPTY);
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
-/* The same but gives a reciprocal of the product of two fixed point
- * values. Accuracy is suitable for gamma calculations but this is
- * not exact - use png_muldiv for that. Only required at present on read.
- */
-PNG_INTERNAL_FUNCTION(png_fixed_point,png_reciprocal2,(png_fixed_point a,
- png_fixed_point b),PNG_EMPTY);
-#endif
-
-/* Return true if the gamma value is significantly different from 1.0 */
-PNG_INTERNAL_FUNCTION(int,png_gamma_significant,(png_fixed_point gamma_value),
- PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
-/* Internal fixed point gamma correction. These APIs are called as
- * required to convert single values - they don't need to be fast,
- * they are not used when processing image pixel values.
- *
- * While the input is an 'unsigned' value it must actually be the
- * correct bit value - 0..255 or 0..65535 as required.
- */
-PNG_INTERNAL_FUNCTION(png_uint_16,png_gamma_correct,(png_structrp png_ptr,
- unsigned int value, png_fixed_point gamma_value),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(png_uint_16,png_gamma_16bit_correct,(unsigned int value,
- png_fixed_point gamma_value),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(png_byte,png_gamma_8bit_correct,(unsigned int value,
- png_fixed_point gamma_value),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_destroy_gamma_table,(png_structrp png_ptr),
- PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_build_gamma_table,(png_structrp png_ptr,
- int bit_depth),PNG_EMPTY);
-#endif
-
-/* SIMPLIFIED READ/WRITE SUPPORT */
-#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) ||\
- defined(PNG_SIMPLIFIED_WRITE_SUPPORTED)
-/* The internal structure that png_image::opaque points to. */
-typedef struct png_control
-{
- png_structp png_ptr;
- png_infop info_ptr;
- png_voidp error_buf; /* Always a jmp_buf at present. */
-
- png_const_bytep memory; /* Memory buffer. */
- size_t size; /* Size of the memory buffer. */
-
- unsigned int for_write :1; /* Otherwise it is a read structure */
- unsigned int owned_file :1; /* We own the file in io_ptr */
-} png_control;
-
-/* Return the pointer to the jmp_buf from a png_control: necessary because C
- * does not reveal the type of the elements of jmp_buf.
- */
-#ifdef __cplusplus
-# define png_control_jmp_buf(pc) (((jmp_buf*)((pc)->error_buf))[0])
-#else
-# define png_control_jmp_buf(pc) ((pc)->error_buf)
-#endif
-
-/* Utility to safely execute a piece of libpng code catching and logging any
- * errors that might occur. Returns true on success, false on failure (either
- * of the function or as a result of a png_error.)
- */
-PNG_INTERNAL_CALLBACK(void,png_safe_error,(png_structp png_ptr,
- png_const_charp error_message),PNG_NORETURN);
-
-#ifdef PNG_WARNINGS_SUPPORTED
-PNG_INTERNAL_CALLBACK(void,png_safe_warning,(png_structp png_ptr,
- png_const_charp warning_message),PNG_EMPTY);
-#else
-# define png_safe_warning 0/*dummy argument*/
-#endif
-
-PNG_INTERNAL_FUNCTION(int,png_safe_execute,(png_imagep image,
- int (*function)(png_voidp), png_voidp arg),PNG_EMPTY);
-
-/* Utility to log an error; this also cleans up the png_image; the function
- * always returns 0 (false).
- */
-PNG_INTERNAL_FUNCTION(int,png_image_error,(png_imagep image,
- png_const_charp error_message),PNG_EMPTY);
-
-#ifndef PNG_SIMPLIFIED_READ_SUPPORTED
-/* png_image_free is used by the write code but not exported */
-PNG_INTERNAL_FUNCTION(void, png_image_free, (png_imagep image), PNG_EMPTY);
-#endif /* !SIMPLIFIED_READ */
-
-#endif /* SIMPLIFIED READ/WRITE */
-
-/* These are initialization functions for hardware specific PNG filter
- * optimizations; list these here then select the appropriate one at compile
- * time using the macro PNG_FILTER_OPTIMIZATIONS. If the macro is not defined
- * the generic code is used.
- */
-#ifdef PNG_FILTER_OPTIMIZATIONS
-PNG_INTERNAL_FUNCTION(void, PNG_FILTER_OPTIMIZATIONS, (png_structp png_ptr,
- unsigned int bpp), PNG_EMPTY);
- /* Just declare the optimization that will be used */
-#else
- /* List *all* the possible optimizations here - this branch is required if
- * the builder of libpng passes the definition of PNG_FILTER_OPTIMIZATIONS in
- * CFLAGS in place of CPPFLAGS *and* uses symbol prefixing.
- */
-# if PNG_ARM_NEON_OPT > 0
-PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_neon,
- (png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
-#endif
-
-#if PNG_MIPS_MSA_OPT > 0
-PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_msa,
- (png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
-#endif
-
-# if PNG_INTEL_SSE_IMPLEMENTATION > 0
-PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_sse2,
- (png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
-# endif
-#endif
-
-PNG_INTERNAL_FUNCTION(png_uint_32, png_check_keyword, (png_structrp png_ptr,
- png_const_charp key, png_bytep new_key), PNG_EMPTY);
-
-#if PNG_ARM_NEON_IMPLEMENTATION == 1
-PNG_INTERNAL_FUNCTION(void,
- png_riffle_palette_neon,
- (png_structrp),
- PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(int,
- png_do_expand_palette_rgba8_neon,
- (png_structrp,
- png_row_infop,
- png_const_bytep,
- const png_bytepp,
- const png_bytepp),
- PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(int,
- png_do_expand_palette_rgb8_neon,
- (png_structrp,
- png_row_infop,
- png_const_bytep,
- const png_bytepp,
- const png_bytepp),
- PNG_EMPTY);
-#endif
-
-/* Maintainer: Put new private prototypes here ^ */
-
-#include "pngdebug.h"
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* PNG_VERSION_INFO_ONLY */
-#endif /* PNGPRIV_H */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngread.c b/3rdparty/libpng/libpng-1.6.37/pngread.c
deleted file mode 100644
index 8fa7d9f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngread.c
+++ /dev/null
@@ -1,4225 +0,0 @@
-
-/* pngread.c - read a PNG file
- *
- * Copyright (c) 2018-2019 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * This file contains routines that an application calls directly to
- * read a PNG file or stream.
- */
-
-#include "pngpriv.h"
-#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) && defined(PNG_STDIO_SUPPORTED)
-# include <errno.h>
-#endif
-
-#ifdef PNG_READ_SUPPORTED
-
-/* Create a PNG structure for reading, and allocate any memory needed. */
-PNG_FUNCTION(png_structp,PNGAPI
-png_create_read_struct,(png_const_charp user_png_ver, png_voidp error_ptr,
- png_error_ptr error_fn, png_error_ptr warn_fn),PNG_ALLOCATED)
-{
-#ifndef PNG_USER_MEM_SUPPORTED
- png_structp png_ptr = png_create_png_struct(user_png_ver, error_ptr,
- error_fn, warn_fn, NULL, NULL, NULL);
-#else
- return png_create_read_struct_2(user_png_ver, error_ptr, error_fn,
- warn_fn, NULL, NULL, NULL);
-}
-
-/* Alternate create PNG structure for reading, and allocate any memory
- * needed.
- */
-PNG_FUNCTION(png_structp,PNGAPI
-png_create_read_struct_2,(png_const_charp user_png_ver, png_voidp error_ptr,
- png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr,
- png_malloc_ptr malloc_fn, png_free_ptr free_fn),PNG_ALLOCATED)
-{
- png_structp png_ptr = png_create_png_struct(user_png_ver, error_ptr,
- error_fn, warn_fn, mem_ptr, malloc_fn, free_fn);
-#endif /* USER_MEM */
-
- if (png_ptr != NULL)
- {
- png_ptr->mode = PNG_IS_READ_STRUCT;
-
- /* Added in libpng-1.6.0; this can be used to detect a read structure if
- * required (it will be zero in a write structure.)
- */
-# ifdef PNG_SEQUENTIAL_READ_SUPPORTED
- png_ptr->IDAT_read_size = PNG_IDAT_READ_SIZE;
-# endif
-
-# ifdef PNG_BENIGN_READ_ERRORS_SUPPORTED
- png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN;
-
- /* In stable builds only warn if an application error can be completely
- * handled.
- */
-# if PNG_RELEASE_BUILD
- png_ptr->flags |= PNG_FLAG_APP_WARNINGS_WARN;
-# endif
-# endif
-
- /* TODO: delay this, it can be done in png_init_io (if the app doesn't
- * do it itself) avoiding setting the default function if it is not
- * required.
- */
- png_set_read_fn(png_ptr, NULL, NULL);
- }
-
- return png_ptr;
-}
-
-
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-/* Read the information before the actual image data. This has been
- * changed in v0.90 to allow reading a file that already has the magic
- * bytes read from the stream. You can tell libpng how many bytes have
- * been read from the beginning of the stream (up to the maximum of 8)
- * via png_set_sig_bytes(), and we will only check the remaining bytes
- * here. The application can then have access to the signature bytes we
- * read if it is determined that this isn't a valid PNG file.
- */
-void PNGAPI
-png_read_info(png_structrp png_ptr, png_inforp info_ptr)
-{
-#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
- int keep;
-#endif
-
- png_debug(1, "in png_read_info");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- /* Read and check the PNG file signature. */
- png_read_sig(png_ptr, info_ptr);
-
- for (;;)
- {
- png_uint_32 length = png_read_chunk_header(png_ptr);
- png_uint_32 chunk_name = png_ptr->chunk_name;
-
- /* IDAT logic needs to happen here to simplify getting the two flags
- * right.
- */
- if (chunk_name == png_IDAT)
- {
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "Missing IHDR before IDAT");
-
- else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
- (png_ptr->mode & PNG_HAVE_PLTE) == 0)
- png_chunk_error(png_ptr, "Missing PLTE before IDAT");
-
- else if ((png_ptr->mode & PNG_AFTER_IDAT) != 0)
- png_chunk_benign_error(png_ptr, "Too many IDATs found");
-
- png_ptr->mode |= PNG_HAVE_IDAT;
- }
-
- else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
- {
- png_ptr->mode |= PNG_HAVE_CHUNK_AFTER_IDAT;
- png_ptr->mode |= PNG_AFTER_IDAT;
- }
-
- /* This should be a binary subdivision search or a hash for
- * matching the chunk name rather than a linear search.
- */
- if (chunk_name == png_IHDR)
- png_handle_IHDR(png_ptr, info_ptr, length);
-
- else if (chunk_name == png_IEND)
- png_handle_IEND(png_ptr, info_ptr, length);
-
-#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
- else if ((keep = png_chunk_unknown_handling(png_ptr, chunk_name)) != 0)
- {
- png_handle_unknown(png_ptr, info_ptr, length, keep);
-
- if (chunk_name == png_PLTE)
- png_ptr->mode |= PNG_HAVE_PLTE;
-
- else if (chunk_name == png_IDAT)
- {
- png_ptr->idat_size = 0; /* It has been consumed */
- break;
- }
- }
-#endif
- else if (chunk_name == png_PLTE)
- png_handle_PLTE(png_ptr, info_ptr, length);
-
- else if (chunk_name == png_IDAT)
- {
- png_ptr->idat_size = length;
- break;
- }
-
-#ifdef PNG_READ_bKGD_SUPPORTED
- else if (chunk_name == png_bKGD)
- png_handle_bKGD(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_cHRM_SUPPORTED
- else if (chunk_name == png_cHRM)
- png_handle_cHRM(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_eXIf_SUPPORTED
- else if (chunk_name == png_eXIf)
- png_handle_eXIf(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_gAMA_SUPPORTED
- else if (chunk_name == png_gAMA)
- png_handle_gAMA(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_hIST_SUPPORTED
- else if (chunk_name == png_hIST)
- png_handle_hIST(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_oFFs_SUPPORTED
- else if (chunk_name == png_oFFs)
- png_handle_oFFs(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_pCAL_SUPPORTED
- else if (chunk_name == png_pCAL)
- png_handle_pCAL(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_sCAL_SUPPORTED
- else if (chunk_name == png_sCAL)
- png_handle_sCAL(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_pHYs_SUPPORTED
- else if (chunk_name == png_pHYs)
- png_handle_pHYs(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_sBIT_SUPPORTED
- else if (chunk_name == png_sBIT)
- png_handle_sBIT(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_sRGB_SUPPORTED
- else if (chunk_name == png_sRGB)
- png_handle_sRGB(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_iCCP_SUPPORTED
- else if (chunk_name == png_iCCP)
- png_handle_iCCP(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_sPLT_SUPPORTED
- else if (chunk_name == png_sPLT)
- png_handle_sPLT(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_tEXt_SUPPORTED
- else if (chunk_name == png_tEXt)
- png_handle_tEXt(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_tIME_SUPPORTED
- else if (chunk_name == png_tIME)
- png_handle_tIME(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_tRNS_SUPPORTED
- else if (chunk_name == png_tRNS)
- png_handle_tRNS(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_zTXt_SUPPORTED
- else if (chunk_name == png_zTXt)
- png_handle_zTXt(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_iTXt_SUPPORTED
- else if (chunk_name == png_iTXt)
- png_handle_iTXt(png_ptr, info_ptr, length);
-#endif
-
- else
- png_handle_unknown(png_ptr, info_ptr, length,
- PNG_HANDLE_CHUNK_AS_DEFAULT);
- }
-}
-#endif /* SEQUENTIAL_READ */
-
-/* Optional call to update the users info_ptr structure */
-void PNGAPI
-png_read_update_info(png_structrp png_ptr, png_inforp info_ptr)
-{
- png_debug(1, "in png_read_update_info");
-
- if (png_ptr != NULL)
- {
- if ((png_ptr->flags & PNG_FLAG_ROW_INIT) == 0)
- {
- png_read_start_row(png_ptr);
-
-# ifdef PNG_READ_TRANSFORMS_SUPPORTED
- png_read_transform_info(png_ptr, info_ptr);
-# else
- PNG_UNUSED(info_ptr)
-# endif
- }
-
- /* New in 1.6.0 this avoids the bug of doing the initializations twice */
- else
- png_app_error(png_ptr,
- "png_read_update_info/png_start_read_image: duplicate call");
- }
-}
-
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-/* Initialize palette, background, etc, after transformations
- * are set, but before any reading takes place. This allows
- * the user to obtain a gamma-corrected palette, for example.
- * If the user doesn't call this, we will do it ourselves.
- */
-void PNGAPI
-png_start_read_image(png_structrp png_ptr)
-{
- png_debug(1, "in png_start_read_image");
-
- if (png_ptr != NULL)
- {
- if ((png_ptr->flags & PNG_FLAG_ROW_INIT) == 0)
- png_read_start_row(png_ptr);
-
- /* New in 1.6.0 this avoids the bug of doing the initializations twice */
- else
- png_app_error(png_ptr,
- "png_start_read_image/png_read_update_info: duplicate call");
- }
-}
-#endif /* SEQUENTIAL_READ */
-
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-#ifdef PNG_MNG_FEATURES_SUPPORTED
-/* Undoes intrapixel differencing,
- * NOTE: this is apparently only supported in the 'sequential' reader.
- */
-static void
-png_do_read_intrapixel(png_row_infop row_info, png_bytep row)
-{
- png_debug(1, "in png_do_read_intrapixel");
-
- if (
- (row_info->color_type & PNG_COLOR_MASK_COLOR) != 0)
- {
- int bytes_per_pixel;
- png_uint_32 row_width = row_info->width;
-
- if (row_info->bit_depth == 8)
- {
- png_bytep rp;
- png_uint_32 i;
-
- if (row_info->color_type == PNG_COLOR_TYPE_RGB)
- bytes_per_pixel = 3;
-
- else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- bytes_per_pixel = 4;
-
- else
- return;
-
- for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
- {
- *(rp) = (png_byte)((256 + *rp + *(rp + 1)) & 0xff);
- *(rp+2) = (png_byte)((256 + *(rp + 2) + *(rp + 1)) & 0xff);
- }
- }
- else if (row_info->bit_depth == 16)
- {
- png_bytep rp;
- png_uint_32 i;
-
- if (row_info->color_type == PNG_COLOR_TYPE_RGB)
- bytes_per_pixel = 6;
-
- else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- bytes_per_pixel = 8;
-
- else
- return;
-
- for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
- {
- png_uint_32 s0 = (png_uint_32)(*(rp ) << 8) | *(rp + 1);
- png_uint_32 s1 = (png_uint_32)(*(rp + 2) << 8) | *(rp + 3);
- png_uint_32 s2 = (png_uint_32)(*(rp + 4) << 8) | *(rp + 5);
- png_uint_32 red = (s0 + s1 + 65536) & 0xffff;
- png_uint_32 blue = (s2 + s1 + 65536) & 0xffff;
- *(rp ) = (png_byte)((red >> 8) & 0xff);
- *(rp + 1) = (png_byte)(red & 0xff);
- *(rp + 4) = (png_byte)((blue >> 8) & 0xff);
- *(rp + 5) = (png_byte)(blue & 0xff);
- }
- }
- }
-}
-#endif /* MNG_FEATURES */
-
-void PNGAPI
-png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row)
-{
- png_row_info row_info;
-
- if (png_ptr == NULL)
- return;
-
- png_debug2(1, "in png_read_row (row %lu, pass %d)",
- (unsigned long)png_ptr->row_number, png_ptr->pass);
-
- /* png_read_start_row sets the information (in particular iwidth) for this
- * interlace pass.
- */
- if ((png_ptr->flags & PNG_FLAG_ROW_INIT) == 0)
- png_read_start_row(png_ptr);
-
- /* 1.5.6: row_info moved out of png_struct to a local here. */
- row_info.width = png_ptr->iwidth; /* NOTE: width of current interlaced row */
- row_info.color_type = png_ptr->color_type;
- row_info.bit_depth = png_ptr->bit_depth;
- row_info.channels = png_ptr->channels;
- row_info.pixel_depth = png_ptr->pixel_depth;
- row_info.rowbytes = PNG_ROWBYTES(row_info.pixel_depth, row_info.width);
-
-#ifdef PNG_WARNINGS_SUPPORTED
- if (png_ptr->row_number == 0 && png_ptr->pass == 0)
- {
- /* Check for transforms that have been set but were defined out */
-#if defined(PNG_WRITE_INVERT_SUPPORTED) && !defined(PNG_READ_INVERT_SUPPORTED)
- if ((png_ptr->transformations & PNG_INVERT_MONO) != 0)
- png_warning(png_ptr, "PNG_READ_INVERT_SUPPORTED is not defined");
-#endif
-
-#if defined(PNG_WRITE_FILLER_SUPPORTED) && !defined(PNG_READ_FILLER_SUPPORTED)
- if ((png_ptr->transformations & PNG_FILLER) != 0)
- png_warning(png_ptr, "PNG_READ_FILLER_SUPPORTED is not defined");
-#endif
-
-#if defined(PNG_WRITE_PACKSWAP_SUPPORTED) && \
- !defined(PNG_READ_PACKSWAP_SUPPORTED)
- if ((png_ptr->transformations & PNG_PACKSWAP) != 0)
- png_warning(png_ptr, "PNG_READ_PACKSWAP_SUPPORTED is not defined");
-#endif
-
-#if defined(PNG_WRITE_PACK_SUPPORTED) && !defined(PNG_READ_PACK_SUPPORTED)
- if ((png_ptr->transformations & PNG_PACK) != 0)
- png_warning(png_ptr, "PNG_READ_PACK_SUPPORTED is not defined");
-#endif
-
-#if defined(PNG_WRITE_SHIFT_SUPPORTED) && !defined(PNG_READ_SHIFT_SUPPORTED)
- if ((png_ptr->transformations & PNG_SHIFT) != 0)
- png_warning(png_ptr, "PNG_READ_SHIFT_SUPPORTED is not defined");
-#endif
-
-#if defined(PNG_WRITE_BGR_SUPPORTED) && !defined(PNG_READ_BGR_SUPPORTED)
- if ((png_ptr->transformations & PNG_BGR) != 0)
- png_warning(png_ptr, "PNG_READ_BGR_SUPPORTED is not defined");
-#endif
-
-#if defined(PNG_WRITE_SWAP_SUPPORTED) && !defined(PNG_READ_SWAP_SUPPORTED)
- if ((png_ptr->transformations & PNG_SWAP_BYTES) != 0)
- png_warning(png_ptr, "PNG_READ_SWAP_SUPPORTED is not defined");
-#endif
- }
-#endif /* WARNINGS */
-
-#ifdef PNG_READ_INTERLACING_SUPPORTED
- /* If interlaced and we do not need a new row, combine row and return.
- * Notice that the pixels we have from previous rows have been transformed
- * already; we can only combine like with like (transformed or
- * untransformed) and, because of the libpng API for interlaced images, this
- * means we must transform before de-interlacing.
- */
- if (png_ptr->interlaced != 0 &&
- (png_ptr->transformations & PNG_INTERLACE) != 0)
- {
- switch (png_ptr->pass)
- {
- case 0:
- if (png_ptr->row_number & 0x07)
- {
- if (dsp_row != NULL)
- png_combine_row(png_ptr, dsp_row, 1/*display*/);
- png_read_finish_row(png_ptr);
- return;
- }
- break;
-
- case 1:
- if ((png_ptr->row_number & 0x07) || png_ptr->width < 5)
- {
- if (dsp_row != NULL)
- png_combine_row(png_ptr, dsp_row, 1/*display*/);
-
- png_read_finish_row(png_ptr);
- return;
- }
- break;
-
- case 2:
- if ((png_ptr->row_number & 0x07) != 4)
- {
- if (dsp_row != NULL && (png_ptr->row_number & 4))
- png_combine_row(png_ptr, dsp_row, 1/*display*/);
-
- png_read_finish_row(png_ptr);
- return;
- }
- break;
-
- case 3:
- if ((png_ptr->row_number & 3) || png_ptr->width < 3)
- {
- if (dsp_row != NULL)
- png_combine_row(png_ptr, dsp_row, 1/*display*/);
-
- png_read_finish_row(png_ptr);
- return;
- }
- break;
-
- case 4:
- if ((png_ptr->row_number & 3) != 2)
- {
- if (dsp_row != NULL && (png_ptr->row_number & 2))
- png_combine_row(png_ptr, dsp_row, 1/*display*/);
-
- png_read_finish_row(png_ptr);
- return;
- }
- break;
-
- case 5:
- if ((png_ptr->row_number & 1) || png_ptr->width < 2)
- {
- if (dsp_row != NULL)
- png_combine_row(png_ptr, dsp_row, 1/*display*/);
-
- png_read_finish_row(png_ptr);
- return;
- }
- break;
-
- default:
- case 6:
- if ((png_ptr->row_number & 1) == 0)
- {
- png_read_finish_row(png_ptr);
- return;
- }
- break;
- }
- }
-#endif
-
- if ((png_ptr->mode & PNG_HAVE_IDAT) == 0)
- png_error(png_ptr, "Invalid attempt to read row data");
-
- /* Fill the row with IDAT data: */
- png_ptr->row_buf[0]=255; /* to force error if no data was found */
- png_read_IDAT_data(png_ptr, png_ptr->row_buf, row_info.rowbytes + 1);
-
- if (png_ptr->row_buf[0] > PNG_FILTER_VALUE_NONE)
- {
- if (png_ptr->row_buf[0] < PNG_FILTER_VALUE_LAST)
- png_read_filter_row(png_ptr, &row_info, png_ptr->row_buf + 1,
- png_ptr->prev_row + 1, png_ptr->row_buf[0]);
- else
- png_error(png_ptr, "bad adaptive filter value");
- }
-
- /* libpng 1.5.6: the following line was copying png_ptr->rowbytes before
- * 1.5.6, while the buffer really is this big in current versions of libpng
- * it may not be in the future, so this was changed just to copy the
- * interlaced count:
- */
- memcpy(png_ptr->prev_row, png_ptr->row_buf, row_info.rowbytes + 1);
-
-#ifdef PNG_MNG_FEATURES_SUPPORTED
- if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) != 0 &&
- (png_ptr->filter_type == PNG_INTRAPIXEL_DIFFERENCING))
- {
- /* Intrapixel differencing */
- png_do_read_intrapixel(&row_info, png_ptr->row_buf + 1);
- }
-#endif
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
- if (png_ptr->transformations)
- png_do_read_transformations(png_ptr, &row_info);
-#endif
-
- /* The transformed pixel depth should match the depth now in row_info. */
- if (png_ptr->transformed_pixel_depth == 0)
- {
- png_ptr->transformed_pixel_depth = row_info.pixel_depth;
- if (row_info.pixel_depth > png_ptr->maximum_pixel_depth)
- png_error(png_ptr, "sequential row overflow");
- }
-
- else if (png_ptr->transformed_pixel_depth != row_info.pixel_depth)
- png_error(png_ptr, "internal sequential row size calculation error");
-
-#ifdef PNG_READ_INTERLACING_SUPPORTED
- /* Expand interlaced rows to full size */
- if (png_ptr->interlaced != 0 &&
- (png_ptr->transformations & PNG_INTERLACE) != 0)
- {
- if (png_ptr->pass < 6)
- png_do_read_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass,
- png_ptr->transformations);
-
- if (dsp_row != NULL)
- png_combine_row(png_ptr, dsp_row, 1/*display*/);
-
- if (row != NULL)
- png_combine_row(png_ptr, row, 0/*row*/);
- }
-
- else
-#endif
- {
- if (row != NULL)
- png_combine_row(png_ptr, row, -1/*ignored*/);
-
- if (dsp_row != NULL)
- png_combine_row(png_ptr, dsp_row, -1/*ignored*/);
- }
- png_read_finish_row(png_ptr);
-
- if (png_ptr->read_row_fn != NULL)
- (*(png_ptr->read_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass);
-
-}
-#endif /* SEQUENTIAL_READ */
-
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-/* Read one or more rows of image data. If the image is interlaced,
- * and png_set_interlace_handling() has been called, the rows need to
- * contain the contents of the rows from the previous pass. If the
- * image has alpha or transparency, and png_handle_alpha()[*] has been
- * called, the rows contents must be initialized to the contents of the
- * screen.
- *
- * "row" holds the actual image, and pixels are placed in it
- * as they arrive. If the image is displayed after each pass, it will
- * appear to "sparkle" in. "display_row" can be used to display a
- * "chunky" progressive image, with finer detail added as it becomes
- * available. If you do not want this "chunky" display, you may pass
- * NULL for display_row. If you do not want the sparkle display, and
- * you have not called png_handle_alpha(), you may pass NULL for rows.
- * If you have called png_handle_alpha(), and the image has either an
- * alpha channel or a transparency chunk, you must provide a buffer for
- * rows. In this case, you do not have to provide a display_row buffer
- * also, but you may. If the image is not interlaced, or if you have
- * not called png_set_interlace_handling(), the display_row buffer will
- * be ignored, so pass NULL to it.
- *
- * [*] png_handle_alpha() does not exist yet, as of this version of libpng
- */
-
-void PNGAPI
-png_read_rows(png_structrp png_ptr, png_bytepp row,
- png_bytepp display_row, png_uint_32 num_rows)
-{
- png_uint_32 i;
- png_bytepp rp;
- png_bytepp dp;
-
- png_debug(1, "in png_read_rows");
-
- if (png_ptr == NULL)
- return;
-
- rp = row;
- dp = display_row;
- if (rp != NULL && dp != NULL)
- for (i = 0; i < num_rows; i++)
- {
- png_bytep rptr = *rp++;
- png_bytep dptr = *dp++;
-
- png_read_row(png_ptr, rptr, dptr);
- }
-
- else if (rp != NULL)
- for (i = 0; i < num_rows; i++)
- {
- png_bytep rptr = *rp;
- png_read_row(png_ptr, rptr, NULL);
- rp++;
- }
-
- else if (dp != NULL)
- for (i = 0; i < num_rows; i++)
- {
- png_bytep dptr = *dp;
- png_read_row(png_ptr, NULL, dptr);
- dp++;
- }
-}
-#endif /* SEQUENTIAL_READ */
-
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-/* Read the entire image. If the image has an alpha channel or a tRNS
- * chunk, and you have called png_handle_alpha()[*], you will need to
- * initialize the image to the current image that PNG will be overlaying.
- * We set the num_rows again here, in case it was incorrectly set in
- * png_read_start_row() by a call to png_read_update_info() or
- * png_start_read_image() if png_set_interlace_handling() wasn't called
- * prior to either of these functions like it should have been. You can
- * only call this function once. If you desire to have an image for
- * each pass of a interlaced image, use png_read_rows() instead.
- *
- * [*] png_handle_alpha() does not exist yet, as of this version of libpng
- */
-void PNGAPI
-png_read_image(png_structrp png_ptr, png_bytepp image)
-{
- png_uint_32 i, image_height;
- int pass, j;
- png_bytepp rp;
-
- png_debug(1, "in png_read_image");
-
- if (png_ptr == NULL)
- return;
-
-#ifdef PNG_READ_INTERLACING_SUPPORTED
- if ((png_ptr->flags & PNG_FLAG_ROW_INIT) == 0)
- {
- pass = png_set_interlace_handling(png_ptr);
- /* And make sure transforms are initialized. */
- png_start_read_image(png_ptr);
- }
- else
- {
- if (png_ptr->interlaced != 0 &&
- (png_ptr->transformations & PNG_INTERLACE) == 0)
- {
- /* Caller called png_start_read_image or png_read_update_info without
- * first turning on the PNG_INTERLACE transform. We can fix this here,
- * but the caller should do it!
- */
- png_warning(png_ptr, "Interlace handling should be turned on when "
- "using png_read_image");
- /* Make sure this is set correctly */
- png_ptr->num_rows = png_ptr->height;
- }
-
- /* Obtain the pass number, which also turns on the PNG_INTERLACE flag in
- * the above error case.
- */
- pass = png_set_interlace_handling(png_ptr);
- }
-#else
- if (png_ptr->interlaced)
- png_error(png_ptr,
- "Cannot read interlaced image -- interlace handler disabled");
-
- pass = 1;
-#endif
-
- image_height=png_ptr->height;
-
- for (j = 0; j < pass; j++)
- {
- rp = image;
- for (i = 0; i < image_height; i++)
- {
- png_read_row(png_ptr, *rp, NULL);
- rp++;
- }
- }
-}
-#endif /* SEQUENTIAL_READ */
-
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-/* Read the end of the PNG file. Will not read past the end of the
- * file, will verify the end is accurate, and will read any comments
- * or time information at the end of the file, if info is not NULL.
- */
-void PNGAPI
-png_read_end(png_structrp png_ptr, png_inforp info_ptr)
-{
-#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
- int keep;
-#endif
-
- png_debug(1, "in png_read_end");
-
- if (png_ptr == NULL)
- return;
-
- /* If png_read_end is called in the middle of reading the rows there may
- * still be pending IDAT data and an owned zstream. Deal with this here.
- */
-#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
- if (png_chunk_unknown_handling(png_ptr, png_IDAT) == 0)
-#endif
- png_read_finish_IDAT(png_ptr);
-
-#ifdef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
- /* Report invalid palette index; added at libng-1.5.10 */
- if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
- png_ptr->num_palette_max > png_ptr->num_palette)
- png_benign_error(png_ptr, "Read palette index exceeding num_palette");
-#endif
-
- do
- {
- png_uint_32 length = png_read_chunk_header(png_ptr);
- png_uint_32 chunk_name = png_ptr->chunk_name;
-
- if (chunk_name != png_IDAT)
- png_ptr->mode |= PNG_HAVE_CHUNK_AFTER_IDAT;
-
- if (chunk_name == png_IEND)
- png_handle_IEND(png_ptr, info_ptr, length);
-
- else if (chunk_name == png_IHDR)
- png_handle_IHDR(png_ptr, info_ptr, length);
-
- else if (info_ptr == NULL)
- png_crc_finish(png_ptr, length);
-
-#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
- else if ((keep = png_chunk_unknown_handling(png_ptr, chunk_name)) != 0)
- {
- if (chunk_name == png_IDAT)
- {
- if ((length > 0 && !(png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED))
- || (png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT) != 0)
- png_benign_error(png_ptr, ".Too many IDATs found");
- }
- png_handle_unknown(png_ptr, info_ptr, length, keep);
- if (chunk_name == png_PLTE)
- png_ptr->mode |= PNG_HAVE_PLTE;
- }
-#endif
-
- else if (chunk_name == png_IDAT)
- {
- /* Zero length IDATs are legal after the last IDAT has been
- * read, but not after other chunks have been read. 1.6 does not
- * always read all the deflate data; specifically it cannot be relied
- * upon to read the Adler32 at the end. If it doesn't ignore IDAT
- * chunks which are longer than zero as well:
- */
- if ((length > 0 && !(png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED))
- || (png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT) != 0)
- png_benign_error(png_ptr, "..Too many IDATs found");
-
- png_crc_finish(png_ptr, length);
- }
- else if (chunk_name == png_PLTE)
- png_handle_PLTE(png_ptr, info_ptr, length);
-
-#ifdef PNG_READ_bKGD_SUPPORTED
- else if (chunk_name == png_bKGD)
- png_handle_bKGD(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_cHRM_SUPPORTED
- else if (chunk_name == png_cHRM)
- png_handle_cHRM(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_eXIf_SUPPORTED
- else if (chunk_name == png_eXIf)
- png_handle_eXIf(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_gAMA_SUPPORTED
- else if (chunk_name == png_gAMA)
- png_handle_gAMA(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_hIST_SUPPORTED
- else if (chunk_name == png_hIST)
- png_handle_hIST(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_oFFs_SUPPORTED
- else if (chunk_name == png_oFFs)
- png_handle_oFFs(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_pCAL_SUPPORTED
- else if (chunk_name == png_pCAL)
- png_handle_pCAL(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_sCAL_SUPPORTED
- else if (chunk_name == png_sCAL)
- png_handle_sCAL(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_pHYs_SUPPORTED
- else if (chunk_name == png_pHYs)
- png_handle_pHYs(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_sBIT_SUPPORTED
- else if (chunk_name == png_sBIT)
- png_handle_sBIT(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_sRGB_SUPPORTED
- else if (chunk_name == png_sRGB)
- png_handle_sRGB(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_iCCP_SUPPORTED
- else if (chunk_name == png_iCCP)
- png_handle_iCCP(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_sPLT_SUPPORTED
- else if (chunk_name == png_sPLT)
- png_handle_sPLT(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_tEXt_SUPPORTED
- else if (chunk_name == png_tEXt)
- png_handle_tEXt(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_tIME_SUPPORTED
- else if (chunk_name == png_tIME)
- png_handle_tIME(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_tRNS_SUPPORTED
- else if (chunk_name == png_tRNS)
- png_handle_tRNS(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_zTXt_SUPPORTED
- else if (chunk_name == png_zTXt)
- png_handle_zTXt(png_ptr, info_ptr, length);
-#endif
-
-#ifdef PNG_READ_iTXt_SUPPORTED
- else if (chunk_name == png_iTXt)
- png_handle_iTXt(png_ptr, info_ptr, length);
-#endif
-
- else
- png_handle_unknown(png_ptr, info_ptr, length,
- PNG_HANDLE_CHUNK_AS_DEFAULT);
- } while ((png_ptr->mode & PNG_HAVE_IEND) == 0);
-}
-#endif /* SEQUENTIAL_READ */
-
-/* Free all memory used in the read struct */
-static void
-png_read_destroy(png_structrp png_ptr)
-{
- png_debug(1, "in png_read_destroy");
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
- png_destroy_gamma_table(png_ptr);
-#endif
-
- png_free(png_ptr, png_ptr->big_row_buf);
- png_ptr->big_row_buf = NULL;
- png_free(png_ptr, png_ptr->big_prev_row);
- png_ptr->big_prev_row = NULL;
- png_free(png_ptr, png_ptr->read_buffer);
- png_ptr->read_buffer = NULL;
-
-#ifdef PNG_READ_QUANTIZE_SUPPORTED
- png_free(png_ptr, png_ptr->palette_lookup);
- png_ptr->palette_lookup = NULL;
- png_free(png_ptr, png_ptr->quantize_index);
- png_ptr->quantize_index = NULL;
-#endif
-
- if ((png_ptr->free_me & PNG_FREE_PLTE) != 0)
- {
- png_zfree(png_ptr, png_ptr->palette);
- png_ptr->palette = NULL;
- }
- png_ptr->free_me &= ~PNG_FREE_PLTE;
-
-#if defined(PNG_tRNS_SUPPORTED) || \
- defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
- if ((png_ptr->free_me & PNG_FREE_TRNS) != 0)
- {
- png_free(png_ptr, png_ptr->trans_alpha);
- png_ptr->trans_alpha = NULL;
- }
- png_ptr->free_me &= ~PNG_FREE_TRNS;
-#endif
-
- inflateEnd(&png_ptr->zstream);
-
-#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
- png_free(png_ptr, png_ptr->save_buffer);
- png_ptr->save_buffer = NULL;
-#endif
-
-#if defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED) && \
- defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
- png_free(png_ptr, png_ptr->unknown_chunk.data);
- png_ptr->unknown_chunk.data = NULL;
-#endif
-
-#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
- png_free(png_ptr, png_ptr->chunk_list);
- png_ptr->chunk_list = NULL;
-#endif
-
-#if defined(PNG_READ_EXPAND_SUPPORTED) && \
- defined(PNG_ARM_NEON_IMPLEMENTATION)
- png_free(png_ptr, png_ptr->riffled_palette);
- png_ptr->riffled_palette = NULL;
-#endif
-
- /* NOTE: the 'setjmp' buffer may still be allocated and the memory and error
- * callbacks are still set at this point. They are required to complete the
- * destruction of the png_struct itself.
- */
-}
-
-/* Free all memory used by the read */
-void PNGAPI
-png_destroy_read_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr,
- png_infopp end_info_ptr_ptr)
-{
- png_structrp png_ptr = NULL;
-
- png_debug(1, "in png_destroy_read_struct");
-
- if (png_ptr_ptr != NULL)
- png_ptr = *png_ptr_ptr;
-
- if (png_ptr == NULL)
- return;
-
- /* libpng 1.6.0: use the API to destroy info structs to ensure consistent
- * behavior. Prior to 1.6.0 libpng did extra 'info' destruction in this API.
- * The extra was, apparently, unnecessary yet this hides memory leak bugs.
- */
- png_destroy_info_struct(png_ptr, end_info_ptr_ptr);
- png_destroy_info_struct(png_ptr, info_ptr_ptr);
-
- *png_ptr_ptr = NULL;
- png_read_destroy(png_ptr);
- png_destroy_png_struct(png_ptr);
-}
-
-void PNGAPI
-png_set_read_status_fn(png_structrp png_ptr, png_read_status_ptr read_row_fn)
-{
- if (png_ptr == NULL)
- return;
-
- png_ptr->read_row_fn = read_row_fn;
-}
-
-
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-#ifdef PNG_INFO_IMAGE_SUPPORTED
-void PNGAPI
-png_read_png(png_structrp png_ptr, png_inforp info_ptr,
- int transforms, voidp params)
-{
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- /* png_read_info() gives us all of the information from the
- * PNG file before the first IDAT (image data chunk).
- */
- png_read_info(png_ptr, info_ptr);
- if (info_ptr->height > PNG_UINT_32_MAX/(sizeof (png_bytep)))
- png_error(png_ptr, "Image is too high to process with png_read_png()");
-
- /* -------------- image transformations start here ------------------- */
- /* libpng 1.6.10: add code to cause a png_app_error if a selected TRANSFORM
- * is not implemented. This will only happen in de-configured (non-default)
- * libpng builds. The results can be unexpected - png_read_png may return
- * short or mal-formed rows because the transform is skipped.
- */
-
- /* Tell libpng to strip 16-bit/color files down to 8 bits per color.
- */
- if ((transforms & PNG_TRANSFORM_SCALE_16) != 0)
- /* Added at libpng-1.5.4. "strip_16" produces the same result that it
- * did in earlier versions, while "scale_16" is now more accurate.
- */
-#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
- png_set_scale_16(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_SCALE_16 not supported");
-#endif
-
- /* If both SCALE and STRIP are required pngrtran will effectively cancel the
- * latter by doing SCALE first. This is ok and allows apps not to check for
- * which is supported to get the right answer.
- */
- if ((transforms & PNG_TRANSFORM_STRIP_16) != 0)
-#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
- png_set_strip_16(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_STRIP_16 not supported");
-#endif
-
- /* Strip alpha bytes from the input data without combining with
- * the background (not recommended).
- */
- if ((transforms & PNG_TRANSFORM_STRIP_ALPHA) != 0)
-#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
- png_set_strip_alpha(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_STRIP_ALPHA not supported");
-#endif
-
- /* Extract multiple pixels with bit depths of 1, 2, or 4 from a single
- * byte into separate bytes (useful for paletted and grayscale images).
- */
- if ((transforms & PNG_TRANSFORM_PACKING) != 0)
-#ifdef PNG_READ_PACK_SUPPORTED
- png_set_packing(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_PACKING not supported");
-#endif
-
- /* Change the order of packed pixels to least significant bit first
- * (not useful if you are using png_set_packing).
- */
- if ((transforms & PNG_TRANSFORM_PACKSWAP) != 0)
-#ifdef PNG_READ_PACKSWAP_SUPPORTED
- png_set_packswap(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_PACKSWAP not supported");
-#endif
-
- /* Expand paletted colors into true RGB triplets
- * Expand grayscale images to full 8 bits from 1, 2, or 4 bits/pixel
- * Expand paletted or RGB images with transparency to full alpha
- * channels so the data will be available as RGBA quartets.
- */
- if ((transforms & PNG_TRANSFORM_EXPAND) != 0)
-#ifdef PNG_READ_EXPAND_SUPPORTED
- png_set_expand(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_EXPAND not supported");
-#endif
-
- /* We don't handle background color or gamma transformation or quantizing.
- */
-
- /* Invert monochrome files to have 0 as white and 1 as black
- */
- if ((transforms & PNG_TRANSFORM_INVERT_MONO) != 0)
-#ifdef PNG_READ_INVERT_SUPPORTED
- png_set_invert_mono(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_MONO not supported");
-#endif
-
- /* If you want to shift the pixel values from the range [0,255] or
- * [0,65535] to the original [0,7] or [0,31], or whatever range the
- * colors were originally in:
- */
- if ((transforms & PNG_TRANSFORM_SHIFT) != 0)
-#ifdef PNG_READ_SHIFT_SUPPORTED
- if ((info_ptr->valid & PNG_INFO_sBIT) != 0)
- png_set_shift(png_ptr, &info_ptr->sig_bit);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_SHIFT not supported");
-#endif
-
- /* Flip the RGB pixels to BGR (or RGBA to BGRA) */
- if ((transforms & PNG_TRANSFORM_BGR) != 0)
-#ifdef PNG_READ_BGR_SUPPORTED
- png_set_bgr(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_BGR not supported");
-#endif
-
- /* Swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) */
- if ((transforms & PNG_TRANSFORM_SWAP_ALPHA) != 0)
-#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED
- png_set_swap_alpha(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ALPHA not supported");
-#endif
-
- /* Swap bytes of 16-bit files to least significant byte first */
- if ((transforms & PNG_TRANSFORM_SWAP_ENDIAN) != 0)
-#ifdef PNG_READ_SWAP_SUPPORTED
- png_set_swap(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ENDIAN not supported");
-#endif
-
-/* Added at libpng-1.2.41 */
- /* Invert the alpha channel from opacity to transparency */
- if ((transforms & PNG_TRANSFORM_INVERT_ALPHA) != 0)
-#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
- png_set_invert_alpha(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_ALPHA not supported");
-#endif
-
-/* Added at libpng-1.2.41 */
- /* Expand grayscale image to RGB */
- if ((transforms & PNG_TRANSFORM_GRAY_TO_RGB) != 0)
-#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
- png_set_gray_to_rgb(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_GRAY_TO_RGB not supported");
-#endif
-
-/* Added at libpng-1.5.4 */
- if ((transforms & PNG_TRANSFORM_EXPAND_16) != 0)
-#ifdef PNG_READ_EXPAND_16_SUPPORTED
- png_set_expand_16(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_EXPAND_16 not supported");
-#endif
-
- /* We don't handle adding filler bytes */
-
- /* We use png_read_image and rely on that for interlace handling, but we also
- * call png_read_update_info therefore must turn on interlace handling now:
- */
- (void)png_set_interlace_handling(png_ptr);
-
- /* Optional call to gamma correct and add the background to the palette
- * and update info structure. REQUIRED if you are expecting libpng to
- * update the palette for you (i.e., you selected such a transform above).
- */
- png_read_update_info(png_ptr, info_ptr);
-
- /* -------------- image transformations end here ------------------- */
-
- png_free_data(png_ptr, info_ptr, PNG_FREE_ROWS, 0);
- if (info_ptr->row_pointers == NULL)
- {
- png_uint_32 iptr;
-
- info_ptr->row_pointers = png_voidcast(png_bytepp, png_malloc(png_ptr,
- info_ptr->height * (sizeof (png_bytep))));
-
- for (iptr=0; iptr<info_ptr->height; iptr++)
- info_ptr->row_pointers[iptr] = NULL;
-
- info_ptr->free_me |= PNG_FREE_ROWS;
-
- for (iptr = 0; iptr < info_ptr->height; iptr++)
- info_ptr->row_pointers[iptr] = png_voidcast(png_bytep,
- png_malloc(png_ptr, info_ptr->rowbytes));
- }
-
- png_read_image(png_ptr, info_ptr->row_pointers);
- info_ptr->valid |= PNG_INFO_IDAT;
-
- /* Read rest of file, and get additional chunks in info_ptr - REQUIRED */
- png_read_end(png_ptr, info_ptr);
-
- PNG_UNUSED(params)
-}
-#endif /* INFO_IMAGE */
-#endif /* SEQUENTIAL_READ */
-
-#ifdef PNG_SIMPLIFIED_READ_SUPPORTED
-/* SIMPLIFIED READ
- *
- * This code currently relies on the sequential reader, though it could easily
- * be made to work with the progressive one.
- */
-/* Arguments to png_image_finish_read: */
-
-/* Encoding of PNG data (used by the color-map code) */
-# define P_NOTSET 0 /* File encoding not yet known */
-# define P_sRGB 1 /* 8-bit encoded to sRGB gamma */
-# define P_LINEAR 2 /* 16-bit linear: not encoded, NOT pre-multiplied! */
-# define P_FILE 3 /* 8-bit encoded to file gamma, not sRGB or linear */
-# define P_LINEAR8 4 /* 8-bit linear: only from a file value */
-
-/* Color-map processing: after libpng has run on the PNG image further
- * processing may be needed to convert the data to color-map indices.
- */
-#define PNG_CMAP_NONE 0
-#define PNG_CMAP_GA 1 /* Process GA data to a color-map with alpha */
-#define PNG_CMAP_TRANS 2 /* Process GA data to a background index */
-#define PNG_CMAP_RGB 3 /* Process RGB data */
-#define PNG_CMAP_RGB_ALPHA 4 /* Process RGBA data */
-
-/* The following document where the background is for each processing case. */
-#define PNG_CMAP_NONE_BACKGROUND 256
-#define PNG_CMAP_GA_BACKGROUND 231
-#define PNG_CMAP_TRANS_BACKGROUND 254
-#define PNG_CMAP_RGB_BACKGROUND 256
-#define PNG_CMAP_RGB_ALPHA_BACKGROUND 216
-
-typedef struct
-{
- /* Arguments: */
- png_imagep image;
- png_voidp buffer;
- png_int_32 row_stride;
- png_voidp colormap;
- png_const_colorp background;
- /* Local variables: */
- png_voidp local_row;
- png_voidp first_row;
- ptrdiff_t row_bytes; /* step between rows */
- int file_encoding; /* E_ values above */
- png_fixed_point gamma_to_linear; /* For P_FILE, reciprocal of gamma */
- int colormap_processing; /* PNG_CMAP_ values above */
-} png_image_read_control;
-
-/* Do all the *safe* initialization - 'safe' means that png_error won't be
- * called, so setting up the jmp_buf is not required. This means that anything
- * called from here must *not* call png_malloc - it has to call png_malloc_warn
- * instead so that control is returned safely back to this routine.
- */
-static int
-png_image_read_init(png_imagep image)
-{
- if (image->opaque == NULL)
- {
- png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, image,
- png_safe_error, png_safe_warning);
-
- /* And set the rest of the structure to NULL to ensure that the various
- * fields are consistent.
- */
- memset(image, 0, (sizeof *image));
- image->version = PNG_IMAGE_VERSION;
-
- if (png_ptr != NULL)
- {
- png_infop info_ptr = png_create_info_struct(png_ptr);
-
- if (info_ptr != NULL)
- {
- png_controlp control = png_voidcast(png_controlp,
- png_malloc_warn(png_ptr, (sizeof *control)));
-
- if (control != NULL)
- {
- memset(control, 0, (sizeof *control));
-
- control->png_ptr = png_ptr;
- control->info_ptr = info_ptr;
- control->for_write = 0;
-
- image->opaque = control;
- return 1;
- }
-
- /* Error clean up */
- png_destroy_info_struct(png_ptr, &info_ptr);
- }
-
- png_destroy_read_struct(&png_ptr, NULL, NULL);
- }
-
- return png_image_error(image, "png_image_read: out of memory");
- }
-
- return png_image_error(image, "png_image_read: opaque pointer not NULL");
-}
-
-/* Utility to find the base format of a PNG file from a png_struct. */
-static png_uint_32
-png_image_format(png_structrp png_ptr)
-{
- png_uint_32 format = 0;
-
- if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) != 0)
- format |= PNG_FORMAT_FLAG_COLOR;
-
- if ((png_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0)
- format |= PNG_FORMAT_FLAG_ALPHA;
-
- /* Use png_ptr here, not info_ptr, because by examination png_handle_tRNS
- * sets the png_struct fields; that's all we are interested in here. The
- * precise interaction with an app call to png_set_tRNS and PNG file reading
- * is unclear.
- */
- else if (png_ptr->num_trans > 0)
- format |= PNG_FORMAT_FLAG_ALPHA;
-
- if (png_ptr->bit_depth == 16)
- format |= PNG_FORMAT_FLAG_LINEAR;
-
- if ((png_ptr->color_type & PNG_COLOR_MASK_PALETTE) != 0)
- format |= PNG_FORMAT_FLAG_COLORMAP;
-
- return format;
-}
-
-/* Is the given gamma significantly different from sRGB? The test is the same
- * one used in pngrtran.c when deciding whether to do gamma correction. The
- * arithmetic optimizes the division by using the fact that the inverse of the
- * file sRGB gamma is 2.2
- */
-static int
-png_gamma_not_sRGB(png_fixed_point g)
-{
- if (g < PNG_FP_1)
- {
- /* An uninitialized gamma is assumed to be sRGB for the simplified API. */
- if (g == 0)
- return 0;
-
- return png_gamma_significant((g * 11 + 2)/5 /* i.e. *2.2, rounded */);
- }
-
- return 1;
-}
-
-/* Do the main body of a 'png_image_begin_read' function; read the PNG file
- * header and fill in all the information. This is executed in a safe context,
- * unlike the init routine above.
- */
-static int
-png_image_read_header(png_voidp argument)
-{
- png_imagep image = png_voidcast(png_imagep, argument);
- png_structrp png_ptr = image->opaque->png_ptr;
- png_inforp info_ptr = image->opaque->info_ptr;
-
-#ifdef PNG_BENIGN_ERRORS_SUPPORTED
- png_set_benign_errors(png_ptr, 1/*warn*/);
-#endif
- png_read_info(png_ptr, info_ptr);
-
- /* Do this the fast way; just read directly out of png_struct. */
- image->width = png_ptr->width;
- image->height = png_ptr->height;
-
- {
- png_uint_32 format = png_image_format(png_ptr);
-
- image->format = format;
-
-#ifdef PNG_COLORSPACE_SUPPORTED
- /* Does the colorspace match sRGB? If there is no color endpoint
- * (colorant) information assume yes, otherwise require the
- * 'ENDPOINTS_MATCHP_sRGB' colorspace flag to have been set. If the
- * colorspace has been determined to be invalid ignore it.
- */
- if ((format & PNG_FORMAT_FLAG_COLOR) != 0 && ((png_ptr->colorspace.flags
- & (PNG_COLORSPACE_HAVE_ENDPOINTS|PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB|
- PNG_COLORSPACE_INVALID)) == PNG_COLORSPACE_HAVE_ENDPOINTS))
- image->flags |= PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB;
-#endif
- }
-
- /* We need the maximum number of entries regardless of the format the
- * application sets here.
- */
- {
- png_uint_32 cmap_entries;
-
- switch (png_ptr->color_type)
- {
- case PNG_COLOR_TYPE_GRAY:
- cmap_entries = 1U << png_ptr->bit_depth;
- break;
-
- case PNG_COLOR_TYPE_PALETTE:
- cmap_entries = (png_uint_32)png_ptr->num_palette;
- break;
-
- default:
- cmap_entries = 256;
- break;
- }
-
- if (cmap_entries > 256)
- cmap_entries = 256;
-
- image->colormap_entries = cmap_entries;
- }
-
- return 1;
-}
-
-#ifdef PNG_STDIO_SUPPORTED
-int PNGAPI
-png_image_begin_read_from_stdio(png_imagep image, FILE* file)
-{
- if (image != NULL && image->version == PNG_IMAGE_VERSION)
- {
- if (file != NULL)
- {
- if (png_image_read_init(image) != 0)
- {
- /* This is slightly evil, but png_init_io doesn't do anything other
- * than this and we haven't changed the standard IO functions so
- * this saves a 'safe' function.
- */
- image->opaque->png_ptr->io_ptr = file;
- return png_safe_execute(image, png_image_read_header, image);
- }
- }
-
- else
- return png_image_error(image,
- "png_image_begin_read_from_stdio: invalid argument");
- }
-
- else if (image != NULL)
- return png_image_error(image,
- "png_image_begin_read_from_stdio: incorrect PNG_IMAGE_VERSION");
-
- return 0;
-}
-
-int PNGAPI
-png_image_begin_read_from_file(png_imagep image, const char *file_name)
-{
- if (image != NULL && image->version == PNG_IMAGE_VERSION)
- {
- if (file_name != NULL)
- {
- FILE *fp = fopen(file_name, "rb");
-
- if (fp != NULL)
- {
- if (png_image_read_init(image) != 0)
- {
- image->opaque->png_ptr->io_ptr = fp;
- image->opaque->owned_file = 1;
- return png_safe_execute(image, png_image_read_header, image);
- }
-
- /* Clean up: just the opened file. */
- (void)fclose(fp);
- }
-
- else
- return png_image_error(image, strerror(errno));
- }
-
- else
- return png_image_error(image,
- "png_image_begin_read_from_file: invalid argument");
- }
-
- else if (image != NULL)
- return png_image_error(image,
- "png_image_begin_read_from_file: incorrect PNG_IMAGE_VERSION");
-
- return 0;
-}
-#endif /* STDIO */
-
-static void PNGCBAPI
-png_image_memory_read(png_structp png_ptr, png_bytep out, size_t need)
-{
- if (png_ptr != NULL)
- {
- png_imagep image = png_voidcast(png_imagep, png_ptr->io_ptr);
- if (image != NULL)
- {
- png_controlp cp = image->opaque;
- if (cp != NULL)
- {
- png_const_bytep memory = cp->memory;
- size_t size = cp->size;
-
- if (memory != NULL && size >= need)
- {
- memcpy(out, memory, need);
- cp->memory = memory + need;
- cp->size = size - need;
- return;
- }
-
- png_error(png_ptr, "read beyond end of data");
- }
- }
-
- png_error(png_ptr, "invalid memory read");
- }
-}
-
-int PNGAPI png_image_begin_read_from_memory(png_imagep image,
- png_const_voidp memory, size_t size)
-{
- if (image != NULL && image->version == PNG_IMAGE_VERSION)
- {
- if (memory != NULL && size > 0)
- {
- if (png_image_read_init(image) != 0)
- {
- /* Now set the IO functions to read from the memory buffer and
- * store it into io_ptr. Again do this in-place to avoid calling a
- * libpng function that requires error handling.
- */
- image->opaque->memory = png_voidcast(png_const_bytep, memory);
- image->opaque->size = size;
- image->opaque->png_ptr->io_ptr = image;
- image->opaque->png_ptr->read_data_fn = png_image_memory_read;
-
- return png_safe_execute(image, png_image_read_header, image);
- }
- }
-
- else
- return png_image_error(image,
- "png_image_begin_read_from_memory: invalid argument");
- }
-
- else if (image != NULL)
- return png_image_error(image,
- "png_image_begin_read_from_memory: incorrect PNG_IMAGE_VERSION");
-
- return 0;
-}
-
-/* Utility function to skip chunks that are not used by the simplified image
- * read functions and an appropriate macro to call it.
- */
-#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
-static void
-png_image_skip_unused_chunks(png_structrp png_ptr)
-{
- /* Prepare the reader to ignore all recognized chunks whose data will not
- * be used, i.e., all chunks recognized by libpng except for those
- * involved in basic image reading:
- *
- * IHDR, PLTE, IDAT, IEND
- *
- * Or image data handling:
- *
- * tRNS, bKGD, gAMA, cHRM, sRGB, [iCCP] and sBIT.
- *
- * This provides a small performance improvement and eliminates any
- * potential vulnerability to security problems in the unused chunks.
- *
- * At present the iCCP chunk data isn't used, so iCCP chunk can be ignored
- * too. This allows the simplified API to be compiled without iCCP support,
- * however if the support is there the chunk is still checked to detect
- * errors (which are unfortunately quite common.)
- */
- {
- static const png_byte chunks_to_process[] = {
- 98, 75, 71, 68, '\0', /* bKGD */
- 99, 72, 82, 77, '\0', /* cHRM */
- 103, 65, 77, 65, '\0', /* gAMA */
-# ifdef PNG_READ_iCCP_SUPPORTED
- 105, 67, 67, 80, '\0', /* iCCP */
-# endif
- 115, 66, 73, 84, '\0', /* sBIT */
- 115, 82, 71, 66, '\0', /* sRGB */
- };
-
- /* Ignore unknown chunks and all other chunks except for the
- * IHDR, PLTE, tRNS, IDAT, and IEND chunks.
- */
- png_set_keep_unknown_chunks(png_ptr, PNG_HANDLE_CHUNK_NEVER,
- NULL, -1);
-
- /* But do not ignore image data handling chunks */
- png_set_keep_unknown_chunks(png_ptr, PNG_HANDLE_CHUNK_AS_DEFAULT,
- chunks_to_process, (int)/*SAFE*/(sizeof chunks_to_process)/5);
- }
-}
-
-# define PNG_SKIP_CHUNKS(p) png_image_skip_unused_chunks(p)
-#else
-# define PNG_SKIP_CHUNKS(p) ((void)0)
-#endif /* HANDLE_AS_UNKNOWN */
-
-/* The following macro gives the exact rounded answer for all values in the
- * range 0..255 (it actually divides by 51.2, but the rounding still generates
- * the correct numbers 0..5
- */
-#define PNG_DIV51(v8) (((v8) * 5 + 130) >> 8)
-
-/* Utility functions to make particular color-maps */
-static void
-set_file_encoding(png_image_read_control *display)
-{
- png_fixed_point g = display->image->opaque->png_ptr->colorspace.gamma;
- if (png_gamma_significant(g) != 0)
- {
- if (png_gamma_not_sRGB(g) != 0)
- {
- display->file_encoding = P_FILE;
- display->gamma_to_linear = png_reciprocal(g);
- }
-
- else
- display->file_encoding = P_sRGB;
- }
-
- else
- display->file_encoding = P_LINEAR8;
-}
-
-static unsigned int
-decode_gamma(png_image_read_control *display, png_uint_32 value, int encoding)
-{
- if (encoding == P_FILE) /* double check */
- encoding = display->file_encoding;
-
- if (encoding == P_NOTSET) /* must be the file encoding */
- {
- set_file_encoding(display);
- encoding = display->file_encoding;
- }
-
- switch (encoding)
- {
- case P_FILE:
- value = png_gamma_16bit_correct(value*257, display->gamma_to_linear);
- break;
-
- case P_sRGB:
- value = png_sRGB_table[value];
- break;
-
- case P_LINEAR:
- break;
-
- case P_LINEAR8:
- value *= 257;
- break;
-
-#ifdef __GNUC__
- default:
- png_error(display->image->opaque->png_ptr,
- "unexpected encoding (internal error)");
-#endif
- }
-
- return value;
-}
-
-static png_uint_32
-png_colormap_compose(png_image_read_control *display,
- png_uint_32 foreground, int foreground_encoding, png_uint_32 alpha,
- png_uint_32 background, int encoding)
-{
- /* The file value is composed on the background, the background has the given
- * encoding and so does the result, the file is encoded with P_FILE and the
- * file and alpha are 8-bit values. The (output) encoding will always be
- * P_LINEAR or P_sRGB.
- */
- png_uint_32 f = decode_gamma(display, foreground, foreground_encoding);
- png_uint_32 b = decode_gamma(display, background, encoding);
-
- /* The alpha is always an 8-bit value (it comes from the palette), the value
- * scaled by 255 is what PNG_sRGB_FROM_LINEAR requires.
- */
- f = f * alpha + b * (255-alpha);
-
- if (encoding == P_LINEAR)
- {
- /* Scale to 65535; divide by 255, approximately (in fact this is extremely
- * accurate, it divides by 255.00000005937181414556, with no overflow.)
- */
- f *= 257; /* Now scaled by 65535 */
- f += f >> 16;
- f = (f+32768) >> 16;
- }
-
- else /* P_sRGB */
- f = PNG_sRGB_FROM_LINEAR(f);
-
- return f;
-}
-
-/* NOTE: P_LINEAR values to this routine must be 16-bit, but P_FILE values must
- * be 8-bit.
- */
-static void
-png_create_colormap_entry(png_image_read_control *display,
- png_uint_32 ip, png_uint_32 red, png_uint_32 green, png_uint_32 blue,
- png_uint_32 alpha, int encoding)
-{
- png_imagep image = display->image;
- int output_encoding = (image->format & PNG_FORMAT_FLAG_LINEAR) != 0 ?
- P_LINEAR : P_sRGB;
- int convert_to_Y = (image->format & PNG_FORMAT_FLAG_COLOR) == 0 &&
- (red != green || green != blue);
-
- if (ip > 255)
- png_error(image->opaque->png_ptr, "color-map index out of range");
-
- /* Update the cache with whether the file gamma is significantly different
- * from sRGB.
- */
- if (encoding == P_FILE)
- {
- if (display->file_encoding == P_NOTSET)
- set_file_encoding(display);
-
- /* Note that the cached value may be P_FILE too, but if it is then the
- * gamma_to_linear member has been set.
- */
- encoding = display->file_encoding;
- }
-
- if (encoding == P_FILE)
- {
- png_fixed_point g = display->gamma_to_linear;
-
- red = png_gamma_16bit_correct(red*257, g);
- green = png_gamma_16bit_correct(green*257, g);
- blue = png_gamma_16bit_correct(blue*257, g);
-
- if (convert_to_Y != 0 || output_encoding == P_LINEAR)
- {
- alpha *= 257;
- encoding = P_LINEAR;
- }
-
- else
- {
- red = PNG_sRGB_FROM_LINEAR(red * 255);
- green = PNG_sRGB_FROM_LINEAR(green * 255);
- blue = PNG_sRGB_FROM_LINEAR(blue * 255);
- encoding = P_sRGB;
- }
- }
-
- else if (encoding == P_LINEAR8)
- {
- /* This encoding occurs quite frequently in test cases because PngSuite
- * includes a gAMA 1.0 chunk with most images.
- */
- red *= 257;
- green *= 257;
- blue *= 257;
- alpha *= 257;
- encoding = P_LINEAR;
- }
-
- else if (encoding == P_sRGB &&
- (convert_to_Y != 0 || output_encoding == P_LINEAR))
- {
- /* The values are 8-bit sRGB values, but must be converted to 16-bit
- * linear.
- */
- red = png_sRGB_table[red];
- green = png_sRGB_table[green];
- blue = png_sRGB_table[blue];
- alpha *= 257;
- encoding = P_LINEAR;
- }
-
- /* This is set if the color isn't gray but the output is. */
- if (encoding == P_LINEAR)
- {
- if (convert_to_Y != 0)
- {
- /* NOTE: these values are copied from png_do_rgb_to_gray */
- png_uint_32 y = (png_uint_32)6968 * red + (png_uint_32)23434 * green +
- (png_uint_32)2366 * blue;
-
- if (output_encoding == P_LINEAR)
- y = (y + 16384) >> 15;
-
- else
- {
- /* y is scaled by 32768, we need it scaled by 255: */
- y = (y + 128) >> 8;
- y *= 255;
- y = PNG_sRGB_FROM_LINEAR((y + 64) >> 7);
- alpha = PNG_DIV257(alpha);
- encoding = P_sRGB;
- }
-
- blue = red = green = y;
- }
-
- else if (output_encoding == P_sRGB)
- {
- red = PNG_sRGB_FROM_LINEAR(red * 255);
- green = PNG_sRGB_FROM_LINEAR(green * 255);
- blue = PNG_sRGB_FROM_LINEAR(blue * 255);
- alpha = PNG_DIV257(alpha);
- encoding = P_sRGB;
- }
- }
-
- if (encoding != output_encoding)
- png_error(image->opaque->png_ptr, "bad encoding (internal error)");
-
- /* Store the value. */
- {
-# ifdef PNG_FORMAT_AFIRST_SUPPORTED
- int afirst = (image->format & PNG_FORMAT_FLAG_AFIRST) != 0 &&
- (image->format & PNG_FORMAT_FLAG_ALPHA) != 0;
-# else
-# define afirst 0
-# endif
-# ifdef PNG_FORMAT_BGR_SUPPORTED
- int bgr = (image->format & PNG_FORMAT_FLAG_BGR) != 0 ? 2 : 0;
-# else
-# define bgr 0
-# endif
-
- if (output_encoding == P_LINEAR)
- {
- png_uint_16p entry = png_voidcast(png_uint_16p, display->colormap);
-
- entry += ip * PNG_IMAGE_SAMPLE_CHANNELS(image->format);
-
- /* The linear 16-bit values must be pre-multiplied by the alpha channel
- * value, if less than 65535 (this is, effectively, composite on black
- * if the alpha channel is removed.)
- */
- switch (PNG_IMAGE_SAMPLE_CHANNELS(image->format))
- {
- case 4:
- entry[afirst ? 0 : 3] = (png_uint_16)alpha;
- /* FALLTHROUGH */
-
- case 3:
- if (alpha < 65535)
- {
- if (alpha > 0)
- {
- blue = (blue * alpha + 32767U)/65535U;
- green = (green * alpha + 32767U)/65535U;
- red = (red * alpha + 32767U)/65535U;
- }
-
- else
- red = green = blue = 0;
- }
- entry[afirst + (2 ^ bgr)] = (png_uint_16)blue;
- entry[afirst + 1] = (png_uint_16)green;
- entry[afirst + bgr] = (png_uint_16)red;
- break;
-
- case 2:
- entry[1 ^ afirst] = (png_uint_16)alpha;
- /* FALLTHROUGH */
-
- case 1:
- if (alpha < 65535)
- {
- if (alpha > 0)
- green = (green * alpha + 32767U)/65535U;
-
- else
- green = 0;
- }
- entry[afirst] = (png_uint_16)green;
- break;
-
- default:
- break;
- }
- }
-
- else /* output encoding is P_sRGB */
- {
- png_bytep entry = png_voidcast(png_bytep, display->colormap);
-
- entry += ip * PNG_IMAGE_SAMPLE_CHANNELS(image->format);
-
- switch (PNG_IMAGE_SAMPLE_CHANNELS(image->format))
- {
- case 4:
- entry[afirst ? 0 : 3] = (png_byte)alpha;
- /* FALLTHROUGH */
- case 3:
- entry[afirst + (2 ^ bgr)] = (png_byte)blue;
- entry[afirst + 1] = (png_byte)green;
- entry[afirst + bgr] = (png_byte)red;
- break;
-
- case 2:
- entry[1 ^ afirst] = (png_byte)alpha;
- /* FALLTHROUGH */
- case 1:
- entry[afirst] = (png_byte)green;
- break;
-
- default:
- break;
- }
- }
-
-# ifdef afirst
-# undef afirst
-# endif
-# ifdef bgr
-# undef bgr
-# endif
- }
-}
-
-static int
-make_gray_file_colormap(png_image_read_control *display)
-{
- unsigned int i;
-
- for (i=0; i<256; ++i)
- png_create_colormap_entry(display, i, i, i, i, 255, P_FILE);
-
- return (int)i;
-}
-
-static int
-make_gray_colormap(png_image_read_control *display)
-{
- unsigned int i;
-
- for (i=0; i<256; ++i)
- png_create_colormap_entry(display, i, i, i, i, 255, P_sRGB);
-
- return (int)i;
-}
-#define PNG_GRAY_COLORMAP_ENTRIES 256
-
-static int
-make_ga_colormap(png_image_read_control *display)
-{
- unsigned int i, a;
-
- /* Alpha is retained, the output will be a color-map with entries
- * selected by six levels of alpha. One transparent entry, 6 gray
- * levels for all the intermediate alpha values, leaving 230 entries
- * for the opaque grays. The color-map entries are the six values
- * [0..5]*51, the GA processing uses PNG_DIV51(value) to find the
- * relevant entry.
- *
- * if (alpha > 229) // opaque
- * {
- * // The 231 entries are selected to make the math below work:
- * base = 0;
- * entry = (231 * gray + 128) >> 8;
- * }
- * else if (alpha < 26) // transparent
- * {
- * base = 231;
- * entry = 0;
- * }
- * else // partially opaque
- * {
- * base = 226 + 6 * PNG_DIV51(alpha);
- * entry = PNG_DIV51(gray);
- * }
- */
- i = 0;
- while (i < 231)
- {
- unsigned int gray = (i * 256 + 115) / 231;
- png_create_colormap_entry(display, i++, gray, gray, gray, 255, P_sRGB);
- }
-
- /* 255 is used here for the component values for consistency with the code
- * that undoes premultiplication in pngwrite.c.
- */
- png_create_colormap_entry(display, i++, 255, 255, 255, 0, P_sRGB);
-
- for (a=1; a<5; ++a)
- {
- unsigned int g;
-
- for (g=0; g<6; ++g)
- png_create_colormap_entry(display, i++, g*51, g*51, g*51, a*51,
- P_sRGB);
- }
-
- return (int)i;
-}
-
-#define PNG_GA_COLORMAP_ENTRIES 256
-
-static int
-make_rgb_colormap(png_image_read_control *display)
-{
- unsigned int i, r;
-
- /* Build a 6x6x6 opaque RGB cube */
- for (i=r=0; r<6; ++r)
- {
- unsigned int g;
-
- for (g=0; g<6; ++g)
- {
- unsigned int b;
-
- for (b=0; b<6; ++b)
- png_create_colormap_entry(display, i++, r*51, g*51, b*51, 255,
- P_sRGB);
- }
- }
-
- return (int)i;
-}
-
-#define PNG_RGB_COLORMAP_ENTRIES 216
-
-/* Return a palette index to the above palette given three 8-bit sRGB values. */
-#define PNG_RGB_INDEX(r,g,b) \
- ((png_byte)(6 * (6 * PNG_DIV51(r) + PNG_DIV51(g)) + PNG_DIV51(b)))
-
-static int
-png_image_read_colormap(png_voidp argument)
-{
- png_image_read_control *display =
- png_voidcast(png_image_read_control*, argument);
- png_imagep image = display->image;
-
- png_structrp png_ptr = image->opaque->png_ptr;
- png_uint_32 output_format = image->format;
- int output_encoding = (output_format & PNG_FORMAT_FLAG_LINEAR) != 0 ?
- P_LINEAR : P_sRGB;
-
- unsigned int cmap_entries;
- unsigned int output_processing; /* Output processing option */
- unsigned int data_encoding = P_NOTSET; /* Encoding libpng must produce */
-
- /* Background information; the background color and the index of this color
- * in the color-map if it exists (else 256).
- */
- unsigned int background_index = 256;
- png_uint_32 back_r, back_g, back_b;
-
- /* Flags to accumulate things that need to be done to the input. */
- int expand_tRNS = 0;
-
- /* Exclude the NYI feature of compositing onto a color-mapped buffer; it is
- * very difficult to do, the results look awful, and it is difficult to see
- * what possible use it is because the application can't control the
- * color-map.
- */
- if (((png_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0 ||
- png_ptr->num_trans > 0) /* alpha in input */ &&
- ((output_format & PNG_FORMAT_FLAG_ALPHA) == 0) /* no alpha in output */)
- {
- if (output_encoding == P_LINEAR) /* compose on black */
- back_b = back_g = back_r = 0;
-
- else if (display->background == NULL /* no way to remove it */)
- png_error(png_ptr,
- "background color must be supplied to remove alpha/transparency");
-
- /* Get a copy of the background color (this avoids repeating the checks
- * below.) The encoding is 8-bit sRGB or 16-bit linear, depending on the
- * output format.
- */
- else
- {
- back_g = display->background->green;
- if ((output_format & PNG_FORMAT_FLAG_COLOR) != 0)
- {
- back_r = display->background->red;
- back_b = display->background->blue;
- }
- else
- back_b = back_r = back_g;
- }
- }
-
- else if (output_encoding == P_LINEAR)
- back_b = back_r = back_g = 65535;
-
- else
- back_b = back_r = back_g = 255;
-
- /* Default the input file gamma if required - this is necessary because
- * libpng assumes that if no gamma information is present the data is in the
- * output format, but the simplified API deduces the gamma from the input
- * format.
- */
- if ((png_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) == 0)
- {
- /* Do this directly, not using the png_colorspace functions, to ensure
- * that it happens even if the colorspace is invalid (though probably if
- * it is the setting will be ignored) Note that the same thing can be
- * achieved at the application interface with png_set_gAMA.
- */
- if (png_ptr->bit_depth == 16 &&
- (image->flags & PNG_IMAGE_FLAG_16BIT_sRGB) == 0)
- png_ptr->colorspace.gamma = PNG_GAMMA_LINEAR;
-
- else
- png_ptr->colorspace.gamma = PNG_GAMMA_sRGB_INVERSE;
-
- png_ptr->colorspace.flags |= PNG_COLORSPACE_HAVE_GAMMA;
- }
-
- /* Decide what to do based on the PNG color type of the input data. The
- * utility function png_create_colormap_entry deals with most aspects of the
- * output transformations; this code works out how to produce bytes of
- * color-map entries from the original format.
- */
- switch (png_ptr->color_type)
- {
- case PNG_COLOR_TYPE_GRAY:
- if (png_ptr->bit_depth <= 8)
- {
- /* There at most 256 colors in the output, regardless of
- * transparency.
- */
- unsigned int step, i, val, trans = 256/*ignore*/, back_alpha = 0;
-
- cmap_entries = 1U << png_ptr->bit_depth;
- if (cmap_entries > image->colormap_entries)
- png_error(png_ptr, "gray[8] color-map: too few entries");
-
- step = 255 / (cmap_entries - 1);
- output_processing = PNG_CMAP_NONE;
-
- /* If there is a tRNS chunk then this either selects a transparent
- * value or, if the output has no alpha, the background color.
- */
- if (png_ptr->num_trans > 0)
- {
- trans = png_ptr->trans_color.gray;
-
- if ((output_format & PNG_FORMAT_FLAG_ALPHA) == 0)
- back_alpha = output_encoding == P_LINEAR ? 65535 : 255;
- }
-
- /* png_create_colormap_entry just takes an RGBA and writes the
- * corresponding color-map entry using the format from 'image',
- * including the required conversion to sRGB or linear as
- * appropriate. The input values are always either sRGB (if the
- * gamma correction flag is 0) or 0..255 scaled file encoded values
- * (if the function must gamma correct them).
- */
- for (i=val=0; i<cmap_entries; ++i, val += step)
- {
- /* 'i' is a file value. While this will result in duplicated
- * entries for 8-bit non-sRGB encoded files it is necessary to
- * have non-gamma corrected values to do tRNS handling.
- */
- if (i != trans)
- png_create_colormap_entry(display, i, val, val, val, 255,
- P_FILE/*8-bit with file gamma*/);
-
- /* Else this entry is transparent. The colors don't matter if
- * there is an alpha channel (back_alpha == 0), but it does no
- * harm to pass them in; the values are not set above so this
- * passes in white.
- *
- * NOTE: this preserves the full precision of the application
- * supplied background color when it is used.
- */
- else
- png_create_colormap_entry(display, i, back_r, back_g, back_b,
- back_alpha, output_encoding);
- }
-
- /* We need libpng to preserve the original encoding. */
- data_encoding = P_FILE;
-
- /* The rows from libpng, while technically gray values, are now also
- * color-map indices; however, they may need to be expanded to 1
- * byte per pixel. This is what png_set_packing does (i.e., it
- * unpacks the bit values into bytes.)
- */
- if (png_ptr->bit_depth < 8)
- png_set_packing(png_ptr);
- }
-
- else /* bit depth is 16 */
- {
- /* The 16-bit input values can be converted directly to 8-bit gamma
- * encoded values; however, if a tRNS chunk is present 257 color-map
- * entries are required. This means that the extra entry requires
- * special processing; add an alpha channel, sacrifice gray level
- * 254 and convert transparent (alpha==0) entries to that.
- *
- * Use libpng to chop the data to 8 bits. Convert it to sRGB at the
- * same time to minimize quality loss. If a tRNS chunk is present
- * this means libpng must handle it too; otherwise it is impossible
- * to do the exact match on the 16-bit value.
- *
- * If the output has no alpha channel *and* the background color is
- * gray then it is possible to let libpng handle the substitution by
- * ensuring that the corresponding gray level matches the background
- * color exactly.
- */
- data_encoding = P_sRGB;
-
- if (PNG_GRAY_COLORMAP_ENTRIES > image->colormap_entries)
- png_error(png_ptr, "gray[16] color-map: too few entries");
-
- cmap_entries = (unsigned int)make_gray_colormap(display);
-
- if (png_ptr->num_trans > 0)
- {
- unsigned int back_alpha;
-
- if ((output_format & PNG_FORMAT_FLAG_ALPHA) != 0)
- back_alpha = 0;
-
- else
- {
- if (back_r == back_g && back_g == back_b)
- {
- /* Background is gray; no special processing will be
- * required.
- */
- png_color_16 c;
- png_uint_32 gray = back_g;
-
- if (output_encoding == P_LINEAR)
- {
- gray = PNG_sRGB_FROM_LINEAR(gray * 255);
-
- /* And make sure the corresponding palette entry
- * matches.
- */
- png_create_colormap_entry(display, gray, back_g, back_g,
- back_g, 65535, P_LINEAR);
- }
-
- /* The background passed to libpng, however, must be the
- * sRGB value.
- */
- c.index = 0; /*unused*/
- c.gray = c.red = c.green = c.blue = (png_uint_16)gray;
-
- /* NOTE: does this work without expanding tRNS to alpha?
- * It should be the color->gray case below apparently
- * doesn't.
- */
- png_set_background_fixed(png_ptr, &c,
- PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/,
- 0/*gamma: not used*/);
-
- output_processing = PNG_CMAP_NONE;
- break;
- }
-#ifdef __COVERITY__
- /* Coverity claims that output_encoding cannot be 2 (P_LINEAR)
- * here.
- */
- back_alpha = 255;
-#else
- back_alpha = output_encoding == P_LINEAR ? 65535 : 255;
-#endif
- }
-
- /* output_processing means that the libpng-processed row will be
- * 8-bit GA and it has to be processing to single byte color-map
- * values. Entry 254 is replaced by either a completely
- * transparent entry or by the background color at full
- * precision (and the background color is not a simple gray
- * level in this case.)
- */
- expand_tRNS = 1;
- output_processing = PNG_CMAP_TRANS;
- background_index = 254;
-
- /* And set (overwrite) color-map entry 254 to the actual
- * background color at full precision.
- */
- png_create_colormap_entry(display, 254, back_r, back_g, back_b,
- back_alpha, output_encoding);
- }
-
- else
- output_processing = PNG_CMAP_NONE;
- }
- break;
-
- case PNG_COLOR_TYPE_GRAY_ALPHA:
- /* 8-bit or 16-bit PNG with two channels - gray and alpha. A minimum
- * of 65536 combinations. If, however, the alpha channel is to be
- * removed there are only 256 possibilities if the background is gray.
- * (Otherwise there is a subset of the 65536 possibilities defined by
- * the triangle between black, white and the background color.)
- *
- * Reduce 16-bit files to 8-bit and sRGB encode the result. No need to
- * worry about tRNS matching - tRNS is ignored if there is an alpha
- * channel.
- */
- data_encoding = P_sRGB;
-
- if ((output_format & PNG_FORMAT_FLAG_ALPHA) != 0)
- {
- if (PNG_GA_COLORMAP_ENTRIES > image->colormap_entries)
- png_error(png_ptr, "gray+alpha color-map: too few entries");
-
- cmap_entries = (unsigned int)make_ga_colormap(display);
-
- background_index = PNG_CMAP_GA_BACKGROUND;
- output_processing = PNG_CMAP_GA;
- }
-
- else /* alpha is removed */
- {
- /* Alpha must be removed as the PNG data is processed when the
- * background is a color because the G and A channels are
- * independent and the vector addition (non-parallel vectors) is a
- * 2-D problem.
- *
- * This can be reduced to the same algorithm as above by making a
- * colormap containing gray levels (for the opaque grays), a
- * background entry (for a transparent pixel) and a set of four six
- * level color values, one set for each intermediate alpha value.
- * See the comments in make_ga_colormap for how this works in the
- * per-pixel processing.
- *
- * If the background is gray, however, we only need a 256 entry gray
- * level color map. It is sufficient to make the entry generated
- * for the background color be exactly the color specified.
- */
- if ((output_format & PNG_FORMAT_FLAG_COLOR) == 0 ||
- (back_r == back_g && back_g == back_b))
- {
- /* Background is gray; no special processing will be required. */
- png_color_16 c;
- png_uint_32 gray = back_g;
-
- if (PNG_GRAY_COLORMAP_ENTRIES > image->colormap_entries)
- png_error(png_ptr, "gray-alpha color-map: too few entries");
-
- cmap_entries = (unsigned int)make_gray_colormap(display);
-
- if (output_encoding == P_LINEAR)
- {
- gray = PNG_sRGB_FROM_LINEAR(gray * 255);
-
- /* And make sure the corresponding palette entry matches. */
- png_create_colormap_entry(display, gray, back_g, back_g,
- back_g, 65535, P_LINEAR);
- }
-
- /* The background passed to libpng, however, must be the sRGB
- * value.
- */
- c.index = 0; /*unused*/
- c.gray = c.red = c.green = c.blue = (png_uint_16)gray;
-
- png_set_background_fixed(png_ptr, &c,
- PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/,
- 0/*gamma: not used*/);
-
- output_processing = PNG_CMAP_NONE;
- }
-
- else
- {
- png_uint_32 i, a;
-
- /* This is the same as png_make_ga_colormap, above, except that
- * the entries are all opaque.
- */
- if (PNG_GA_COLORMAP_ENTRIES > image->colormap_entries)
- png_error(png_ptr, "ga-alpha color-map: too few entries");
-
- i = 0;
- while (i < 231)
- {
- png_uint_32 gray = (i * 256 + 115) / 231;
- png_create_colormap_entry(display, i++, gray, gray, gray,
- 255, P_sRGB);
- }
-
- /* NOTE: this preserves the full precision of the application
- * background color.
- */
- background_index = i;
- png_create_colormap_entry(display, i++, back_r, back_g, back_b,
-#ifdef __COVERITY__
- /* Coverity claims that output_encoding
- * cannot be 2 (P_LINEAR) here.
- */ 255U,
-#else
- output_encoding == P_LINEAR ? 65535U : 255U,
-#endif
- output_encoding);
-
- /* For non-opaque input composite on the sRGB background - this
- * requires inverting the encoding for each component. The input
- * is still converted to the sRGB encoding because this is a
- * reasonable approximate to the logarithmic curve of human
- * visual sensitivity, at least over the narrow range which PNG
- * represents. Consequently 'G' is always sRGB encoded, while
- * 'A' is linear. We need the linear background colors.
- */
- if (output_encoding == P_sRGB) /* else already linear */
- {
- /* This may produce a value not exactly matching the
- * background, but that's ok because these numbers are only
- * used when alpha != 0
- */
- back_r = png_sRGB_table[back_r];
- back_g = png_sRGB_table[back_g];
- back_b = png_sRGB_table[back_b];
- }
-
- for (a=1; a<5; ++a)
- {
- unsigned int g;
-
- /* PNG_sRGB_FROM_LINEAR expects a 16-bit linear value scaled
- * by an 8-bit alpha value (0..255).
- */
- png_uint_32 alpha = 51 * a;
- png_uint_32 back_rx = (255-alpha) * back_r;
- png_uint_32 back_gx = (255-alpha) * back_g;
- png_uint_32 back_bx = (255-alpha) * back_b;
-
- for (g=0; g<6; ++g)
- {
- png_uint_32 gray = png_sRGB_table[g*51] * alpha;
-
- png_create_colormap_entry(display, i++,
- PNG_sRGB_FROM_LINEAR(gray + back_rx),
- PNG_sRGB_FROM_LINEAR(gray + back_gx),
- PNG_sRGB_FROM_LINEAR(gray + back_bx), 255, P_sRGB);
- }
- }
-
- cmap_entries = i;
- output_processing = PNG_CMAP_GA;
- }
- }
- break;
-
- case PNG_COLOR_TYPE_RGB:
- case PNG_COLOR_TYPE_RGB_ALPHA:
- /* Exclude the case where the output is gray; we can always handle this
- * with the cases above.
- */
- if ((output_format & PNG_FORMAT_FLAG_COLOR) == 0)
- {
- /* The color-map will be grayscale, so we may as well convert the
- * input RGB values to a simple grayscale and use the grayscale
- * code above.
- *
- * NOTE: calling this apparently damages the recognition of the
- * transparent color in background color handling; call
- * png_set_tRNS_to_alpha before png_set_background_fixed.
- */
- png_set_rgb_to_gray_fixed(png_ptr, PNG_ERROR_ACTION_NONE, -1,
- -1);
- data_encoding = P_sRGB;
-
- /* The output will now be one or two 8-bit gray or gray+alpha
- * channels. The more complex case arises when the input has alpha.
- */
- if ((png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
- png_ptr->num_trans > 0) &&
- (output_format & PNG_FORMAT_FLAG_ALPHA) != 0)
- {
- /* Both input and output have an alpha channel, so no background
- * processing is required; just map the GA bytes to the right
- * color-map entry.
- */
- expand_tRNS = 1;
-
- if (PNG_GA_COLORMAP_ENTRIES > image->colormap_entries)
- png_error(png_ptr, "rgb[ga] color-map: too few entries");
-
- cmap_entries = (unsigned int)make_ga_colormap(display);
- background_index = PNG_CMAP_GA_BACKGROUND;
- output_processing = PNG_CMAP_GA;
- }
-
- else
- {
- /* Either the input or the output has no alpha channel, so there
- * will be no non-opaque pixels in the color-map; it will just be
- * grayscale.
- */
- if (PNG_GRAY_COLORMAP_ENTRIES > image->colormap_entries)
- png_error(png_ptr, "rgb[gray] color-map: too few entries");
-
- /* Ideally this code would use libpng to do the gamma correction,
- * but if an input alpha channel is to be removed we will hit the
- * libpng bug in gamma+compose+rgb-to-gray (the double gamma
- * correction bug). Fix this by dropping the gamma correction in
- * this case and doing it in the palette; this will result in
- * duplicate palette entries, but that's better than the
- * alternative of double gamma correction.
- */
- if ((png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
- png_ptr->num_trans > 0) &&
- png_gamma_not_sRGB(png_ptr->colorspace.gamma) != 0)
- {
- cmap_entries = (unsigned int)make_gray_file_colormap(display);
- data_encoding = P_FILE;
- }
-
- else
- cmap_entries = (unsigned int)make_gray_colormap(display);
-
- /* But if the input has alpha or transparency it must be removed
- */
- if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
- png_ptr->num_trans > 0)
- {
- png_color_16 c;
- png_uint_32 gray = back_g;
-
- /* We need to ensure that the application background exists in
- * the colormap and that completely transparent pixels map to
- * it. Achieve this simply by ensuring that the entry
- * selected for the background really is the background color.
- */
- if (data_encoding == P_FILE) /* from the fixup above */
- {
- /* The app supplied a gray which is in output_encoding, we
- * need to convert it to a value of the input (P_FILE)
- * encoding then set this palette entry to the required
- * output encoding.
- */
- if (output_encoding == P_sRGB)
- gray = png_sRGB_table[gray]; /* now P_LINEAR */
-
- gray = PNG_DIV257(png_gamma_16bit_correct(gray,
- png_ptr->colorspace.gamma)); /* now P_FILE */
-
- /* And make sure the corresponding palette entry contains
- * exactly the required sRGB value.
- */
- png_create_colormap_entry(display, gray, back_g, back_g,
- back_g, 0/*unused*/, output_encoding);
- }
-
- else if (output_encoding == P_LINEAR)
- {
- gray = PNG_sRGB_FROM_LINEAR(gray * 255);
-
- /* And make sure the corresponding palette entry matches.
- */
- png_create_colormap_entry(display, gray, back_g, back_g,
- back_g, 0/*unused*/, P_LINEAR);
- }
-
- /* The background passed to libpng, however, must be the
- * output (normally sRGB) value.
- */
- c.index = 0; /*unused*/
- c.gray = c.red = c.green = c.blue = (png_uint_16)gray;
-
- /* NOTE: the following is apparently a bug in libpng. Without
- * it the transparent color recognition in
- * png_set_background_fixed seems to go wrong.
- */
- expand_tRNS = 1;
- png_set_background_fixed(png_ptr, &c,
- PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/,
- 0/*gamma: not used*/);
- }
-
- output_processing = PNG_CMAP_NONE;
- }
- }
-
- else /* output is color */
- {
- /* We could use png_quantize here so long as there is no transparent
- * color or alpha; png_quantize ignores alpha. Easier overall just
- * to do it once and using PNG_DIV51 on the 6x6x6 reduced RGB cube.
- * Consequently we always want libpng to produce sRGB data.
- */
- data_encoding = P_sRGB;
-
- /* Is there any transparency or alpha? */
- if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
- png_ptr->num_trans > 0)
- {
- /* Is there alpha in the output too? If so all four channels are
- * processed into a special RGB cube with alpha support.
- */
- if ((output_format & PNG_FORMAT_FLAG_ALPHA) != 0)
- {
- png_uint_32 r;
-
- if (PNG_RGB_COLORMAP_ENTRIES+1+27 > image->colormap_entries)
- png_error(png_ptr, "rgb+alpha color-map: too few entries");
-
- cmap_entries = (unsigned int)make_rgb_colormap(display);
-
- /* Add a transparent entry. */
- png_create_colormap_entry(display, cmap_entries, 255, 255,
- 255, 0, P_sRGB);
-
- /* This is stored as the background index for the processing
- * algorithm.
- */
- background_index = cmap_entries++;
-
- /* Add 27 r,g,b entries each with alpha 0.5. */
- for (r=0; r<256; r = (r << 1) | 0x7f)
- {
- png_uint_32 g;
-
- for (g=0; g<256; g = (g << 1) | 0x7f)
- {
- png_uint_32 b;
-
- /* This generates components with the values 0, 127 and
- * 255
- */
- for (b=0; b<256; b = (b << 1) | 0x7f)
- png_create_colormap_entry(display, cmap_entries++,
- r, g, b, 128, P_sRGB);
- }
- }
-
- expand_tRNS = 1;
- output_processing = PNG_CMAP_RGB_ALPHA;
- }
-
- else
- {
- /* Alpha/transparency must be removed. The background must
- * exist in the color map (achieved by setting adding it after
- * the 666 color-map). If the standard processing code will
- * pick up this entry automatically that's all that is
- * required; libpng can be called to do the background
- * processing.
- */
- unsigned int sample_size =
- PNG_IMAGE_SAMPLE_SIZE(output_format);
- png_uint_32 r, g, b; /* sRGB background */
-
- if (PNG_RGB_COLORMAP_ENTRIES+1+27 > image->colormap_entries)
- png_error(png_ptr, "rgb-alpha color-map: too few entries");
-
- cmap_entries = (unsigned int)make_rgb_colormap(display);
-
- png_create_colormap_entry(display, cmap_entries, back_r,
- back_g, back_b, 0/*unused*/, output_encoding);
-
- if (output_encoding == P_LINEAR)
- {
- r = PNG_sRGB_FROM_LINEAR(back_r * 255);
- g = PNG_sRGB_FROM_LINEAR(back_g * 255);
- b = PNG_sRGB_FROM_LINEAR(back_b * 255);
- }
-
- else
- {
- r = back_r;
- g = back_g;
- b = back_g;
- }
-
- /* Compare the newly-created color-map entry with the one the
- * PNG_CMAP_RGB algorithm will use. If the two entries don't
- * match, add the new one and set this as the background
- * index.
- */
- if (memcmp((png_const_bytep)display->colormap +
- sample_size * cmap_entries,
- (png_const_bytep)display->colormap +
- sample_size * PNG_RGB_INDEX(r,g,b),
- sample_size) != 0)
- {
- /* The background color must be added. */
- background_index = cmap_entries++;
-
- /* Add 27 r,g,b entries each with created by composing with
- * the background at alpha 0.5.
- */
- for (r=0; r<256; r = (r << 1) | 0x7f)
- {
- for (g=0; g<256; g = (g << 1) | 0x7f)
- {
- /* This generates components with the values 0, 127
- * and 255
- */
- for (b=0; b<256; b = (b << 1) | 0x7f)
- png_create_colormap_entry(display, cmap_entries++,
- png_colormap_compose(display, r, P_sRGB, 128,
- back_r, output_encoding),
- png_colormap_compose(display, g, P_sRGB, 128,
- back_g, output_encoding),
- png_colormap_compose(display, b, P_sRGB, 128,
- back_b, output_encoding),
- 0/*unused*/, output_encoding);
- }
- }
-
- expand_tRNS = 1;
- output_processing = PNG_CMAP_RGB_ALPHA;
- }
-
- else /* background color is in the standard color-map */
- {
- png_color_16 c;
-
- c.index = 0; /*unused*/
- c.red = (png_uint_16)back_r;
- c.gray = c.green = (png_uint_16)back_g;
- c.blue = (png_uint_16)back_b;
-
- png_set_background_fixed(png_ptr, &c,
- PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/,
- 0/*gamma: not used*/);
-
- output_processing = PNG_CMAP_RGB;
- }
- }
- }
-
- else /* no alpha or transparency in the input */
- {
- /* Alpha in the output is irrelevant, simply map the opaque input
- * pixels to the 6x6x6 color-map.
- */
- if (PNG_RGB_COLORMAP_ENTRIES > image->colormap_entries)
- png_error(png_ptr, "rgb color-map: too few entries");
-
- cmap_entries = (unsigned int)make_rgb_colormap(display);
- output_processing = PNG_CMAP_RGB;
- }
- }
- break;
-
- case PNG_COLOR_TYPE_PALETTE:
- /* It's already got a color-map. It may be necessary to eliminate the
- * tRNS entries though.
- */
- {
- unsigned int num_trans = png_ptr->num_trans;
- png_const_bytep trans = num_trans > 0 ? png_ptr->trans_alpha : NULL;
- png_const_colorp colormap = png_ptr->palette;
- int do_background = trans != NULL &&
- (output_format & PNG_FORMAT_FLAG_ALPHA) == 0;
- unsigned int i;
-
- /* Just in case: */
- if (trans == NULL)
- num_trans = 0;
-
- output_processing = PNG_CMAP_NONE;
- data_encoding = P_FILE; /* Don't change from color-map indices */
- cmap_entries = (unsigned int)png_ptr->num_palette;
- if (cmap_entries > 256)
- cmap_entries = 256;
-
- if (cmap_entries > (unsigned int)image->colormap_entries)
- png_error(png_ptr, "palette color-map: too few entries");
-
- for (i=0; i < cmap_entries; ++i)
- {
- if (do_background != 0 && i < num_trans && trans[i] < 255)
- {
- if (trans[i] == 0)
- png_create_colormap_entry(display, i, back_r, back_g,
- back_b, 0, output_encoding);
-
- else
- {
- /* Must compose the PNG file color in the color-map entry
- * on the sRGB color in 'back'.
- */
- png_create_colormap_entry(display, i,
- png_colormap_compose(display, colormap[i].red,
- P_FILE, trans[i], back_r, output_encoding),
- png_colormap_compose(display, colormap[i].green,
- P_FILE, trans[i], back_g, output_encoding),
- png_colormap_compose(display, colormap[i].blue,
- P_FILE, trans[i], back_b, output_encoding),
- output_encoding == P_LINEAR ? trans[i] * 257U :
- trans[i],
- output_encoding);
- }
- }
-
- else
- png_create_colormap_entry(display, i, colormap[i].red,
- colormap[i].green, colormap[i].blue,
- i < num_trans ? trans[i] : 255U, P_FILE/*8-bit*/);
- }
-
- /* The PNG data may have indices packed in fewer than 8 bits, it
- * must be expanded if so.
- */
- if (png_ptr->bit_depth < 8)
- png_set_packing(png_ptr);
- }
- break;
-
- default:
- png_error(png_ptr, "invalid PNG color type");
- /*NOT REACHED*/
- }
-
- /* Now deal with the output processing */
- if (expand_tRNS != 0 && png_ptr->num_trans > 0 &&
- (png_ptr->color_type & PNG_COLOR_MASK_ALPHA) == 0)
- png_set_tRNS_to_alpha(png_ptr);
-
- switch (data_encoding)
- {
- case P_sRGB:
- /* Change to 8-bit sRGB */
- png_set_alpha_mode_fixed(png_ptr, PNG_ALPHA_PNG, PNG_GAMMA_sRGB);
- /* FALLTHROUGH */
-
- case P_FILE:
- if (png_ptr->bit_depth > 8)
- png_set_scale_16(png_ptr);
- break;
-
-#ifdef __GNUC__
- default:
- png_error(png_ptr, "bad data option (internal error)");
-#endif
- }
-
- if (cmap_entries > 256 || cmap_entries > image->colormap_entries)
- png_error(png_ptr, "color map overflow (BAD internal error)");
-
- image->colormap_entries = cmap_entries;
-
- /* Double check using the recorded background index */
- switch (output_processing)
- {
- case PNG_CMAP_NONE:
- if (background_index != PNG_CMAP_NONE_BACKGROUND)
- goto bad_background;
- break;
-
- case PNG_CMAP_GA:
- if (background_index != PNG_CMAP_GA_BACKGROUND)
- goto bad_background;
- break;
-
- case PNG_CMAP_TRANS:
- if (background_index >= cmap_entries ||
- background_index != PNG_CMAP_TRANS_BACKGROUND)
- goto bad_background;
- break;
-
- case PNG_CMAP_RGB:
- if (background_index != PNG_CMAP_RGB_BACKGROUND)
- goto bad_background;
- break;
-
- case PNG_CMAP_RGB_ALPHA:
- if (background_index != PNG_CMAP_RGB_ALPHA_BACKGROUND)
- goto bad_background;
- break;
-
- default:
- png_error(png_ptr, "bad processing option (internal error)");
-
- bad_background:
- png_error(png_ptr, "bad background index (internal error)");
- }
-
- display->colormap_processing = (int)output_processing;
-
- return 1/*ok*/;
-}
-
-/* The final part of the color-map read called from png_image_finish_read. */
-static int
-png_image_read_and_map(png_voidp argument)
-{
- png_image_read_control *display = png_voidcast(png_image_read_control*,
- argument);
- png_imagep image = display->image;
- png_structrp png_ptr = image->opaque->png_ptr;
- int passes;
-
- /* Called when the libpng data must be transformed into the color-mapped
- * form. There is a local row buffer in display->local and this routine must
- * do the interlace handling.
- */
- switch (png_ptr->interlaced)
- {
- case PNG_INTERLACE_NONE:
- passes = 1;
- break;
-
- case PNG_INTERLACE_ADAM7:
- passes = PNG_INTERLACE_ADAM7_PASSES;
- break;
-
- default:
- png_error(png_ptr, "unknown interlace type");
- }
-
- {
- png_uint_32 height = image->height;
- png_uint_32 width = image->width;
- int proc = display->colormap_processing;
- png_bytep first_row = png_voidcast(png_bytep, display->first_row);
- ptrdiff_t step_row = display->row_bytes;
- int pass;
-
- for (pass = 0; pass < passes; ++pass)
- {
- unsigned int startx, stepx, stepy;
- png_uint_32 y;
-
- if (png_ptr->interlaced == PNG_INTERLACE_ADAM7)
- {
- /* The row may be empty for a short image: */
- if (PNG_PASS_COLS(width, pass) == 0)
- continue;
-
- startx = PNG_PASS_START_COL(pass);
- stepx = PNG_PASS_COL_OFFSET(pass);
- y = PNG_PASS_START_ROW(pass);
- stepy = PNG_PASS_ROW_OFFSET(pass);
- }
-
- else
- {
- y = 0;
- startx = 0;
- stepx = stepy = 1;
- }
-
- for (; y<height; y += stepy)
- {
- png_bytep inrow = png_voidcast(png_bytep, display->local_row);
- png_bytep outrow = first_row + y * step_row;
- png_const_bytep end_row = outrow + width;
-
- /* Read read the libpng data into the temporary buffer. */
- png_read_row(png_ptr, inrow, NULL);
-
- /* Now process the row according to the processing option, note
- * that the caller verifies that the format of the libpng output
- * data is as required.
- */
- outrow += startx;
- switch (proc)
- {
- case PNG_CMAP_GA:
- for (; outrow < end_row; outrow += stepx)
- {
- /* The data is always in the PNG order */
- unsigned int gray = *inrow++;
- unsigned int alpha = *inrow++;
- unsigned int entry;
-
- /* NOTE: this code is copied as a comment in
- * make_ga_colormap above. Please update the
- * comment if you change this code!
- */
- if (alpha > 229) /* opaque */
- {
- entry = (231 * gray + 128) >> 8;
- }
- else if (alpha < 26) /* transparent */
- {
- entry = 231;
- }
- else /* partially opaque */
- {
- entry = 226 + 6 * PNG_DIV51(alpha) + PNG_DIV51(gray);
- }
-
- *outrow = (png_byte)entry;
- }
- break;
-
- case PNG_CMAP_TRANS:
- for (; outrow < end_row; outrow += stepx)
- {
- png_byte gray = *inrow++;
- png_byte alpha = *inrow++;
-
- if (alpha == 0)
- *outrow = PNG_CMAP_TRANS_BACKGROUND;
-
- else if (gray != PNG_CMAP_TRANS_BACKGROUND)
- *outrow = gray;
-
- else
- *outrow = (png_byte)(PNG_CMAP_TRANS_BACKGROUND+1);
- }
- break;
-
- case PNG_CMAP_RGB:
- for (; outrow < end_row; outrow += stepx)
- {
- *outrow = PNG_RGB_INDEX(inrow[0], inrow[1], inrow[2]);
- inrow += 3;
- }
- break;
-
- case PNG_CMAP_RGB_ALPHA:
- for (; outrow < end_row; outrow += stepx)
- {
- unsigned int alpha = inrow[3];
-
- /* Because the alpha entries only hold alpha==0.5 values
- * split the processing at alpha==0.25 (64) and 0.75
- * (196).
- */
-
- if (alpha >= 196)
- *outrow = PNG_RGB_INDEX(inrow[0], inrow[1],
- inrow[2]);
-
- else if (alpha < 64)
- *outrow = PNG_CMAP_RGB_ALPHA_BACKGROUND;
-
- else
- {
- /* Likewise there are three entries for each of r, g
- * and b. We could select the entry by popcount on
- * the top two bits on those architectures that
- * support it, this is what the code below does,
- * crudely.
- */
- unsigned int back_i = PNG_CMAP_RGB_ALPHA_BACKGROUND+1;
-
- /* Here are how the values map:
- *
- * 0x00 .. 0x3f -> 0
- * 0x40 .. 0xbf -> 1
- * 0xc0 .. 0xff -> 2
- *
- * So, as above with the explicit alpha checks, the
- * breakpoints are at 64 and 196.
- */
- if (inrow[0] & 0x80) back_i += 9; /* red */
- if (inrow[0] & 0x40) back_i += 9;
- if (inrow[0] & 0x80) back_i += 3; /* green */
- if (inrow[0] & 0x40) back_i += 3;
- if (inrow[0] & 0x80) back_i += 1; /* blue */
- if (inrow[0] & 0x40) back_i += 1;
-
- *outrow = (png_byte)back_i;
- }
-
- inrow += 4;
- }
- break;
-
- default:
- break;
- }
- }
- }
- }
-
- return 1;
-}
-
-static int
-png_image_read_colormapped(png_voidp argument)
-{
- png_image_read_control *display = png_voidcast(png_image_read_control*,
- argument);
- png_imagep image = display->image;
- png_controlp control = image->opaque;
- png_structrp png_ptr = control->png_ptr;
- png_inforp info_ptr = control->info_ptr;
-
- int passes = 0; /* As a flag */
-
- PNG_SKIP_CHUNKS(png_ptr);
-
- /* Update the 'info' structure and make sure the result is as required; first
- * make sure to turn on the interlace handling if it will be required
- * (because it can't be turned on *after* the call to png_read_update_info!)
- */
- if (display->colormap_processing == PNG_CMAP_NONE)
- passes = png_set_interlace_handling(png_ptr);
-
- png_read_update_info(png_ptr, info_ptr);
-
- /* The expected output can be deduced from the colormap_processing option. */
- switch (display->colormap_processing)
- {
- case PNG_CMAP_NONE:
- /* Output must be one channel and one byte per pixel, the output
- * encoding can be anything.
- */
- if ((info_ptr->color_type == PNG_COLOR_TYPE_PALETTE ||
- info_ptr->color_type == PNG_COLOR_TYPE_GRAY) &&
- info_ptr->bit_depth == 8)
- break;
-
- goto bad_output;
-
- case PNG_CMAP_TRANS:
- case PNG_CMAP_GA:
- /* Output must be two channels and the 'G' one must be sRGB, the latter
- * can be checked with an exact number because it should have been set
- * to this number above!
- */
- if (info_ptr->color_type == PNG_COLOR_TYPE_GRAY_ALPHA &&
- info_ptr->bit_depth == 8 &&
- png_ptr->screen_gamma == PNG_GAMMA_sRGB &&
- image->colormap_entries == 256)
- break;
-
- goto bad_output;
-
- case PNG_CMAP_RGB:
- /* Output must be 8-bit sRGB encoded RGB */
- if (info_ptr->color_type == PNG_COLOR_TYPE_RGB &&
- info_ptr->bit_depth == 8 &&
- png_ptr->screen_gamma == PNG_GAMMA_sRGB &&
- image->colormap_entries == 216)
- break;
-
- goto bad_output;
-
- case PNG_CMAP_RGB_ALPHA:
- /* Output must be 8-bit sRGB encoded RGBA */
- if (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA &&
- info_ptr->bit_depth == 8 &&
- png_ptr->screen_gamma == PNG_GAMMA_sRGB &&
- image->colormap_entries == 244 /* 216 + 1 + 27 */)
- break;
-
- goto bad_output;
-
- default:
- bad_output:
- png_error(png_ptr, "bad color-map processing (internal error)");
- }
-
- /* Now read the rows. Do this here if it is possible to read directly into
- * the output buffer, otherwise allocate a local row buffer of the maximum
- * size libpng requires and call the relevant processing routine safely.
- */
- {
- png_voidp first_row = display->buffer;
- ptrdiff_t row_bytes = display->row_stride;
-
- /* The following expression is designed to work correctly whether it gives
- * a signed or an unsigned result.
- */
- if (row_bytes < 0)
- {
- char *ptr = png_voidcast(char*, first_row);
- ptr += (image->height-1) * (-row_bytes);
- first_row = png_voidcast(png_voidp, ptr);
- }
-
- display->first_row = first_row;
- display->row_bytes = row_bytes;
- }
-
- if (passes == 0)
- {
- int result;
- png_voidp row = png_malloc(png_ptr, png_get_rowbytes(png_ptr, info_ptr));
-
- display->local_row = row;
- result = png_safe_execute(image, png_image_read_and_map, display);
- display->local_row = NULL;
- png_free(png_ptr, row);
-
- return result;
- }
-
- else
- {
- png_alloc_size_t row_bytes = (png_alloc_size_t)display->row_bytes;
-
- while (--passes >= 0)
- {
- png_uint_32 y = image->height;
- png_bytep row = png_voidcast(png_bytep, display->first_row);
-
- for (; y > 0; --y)
- {
- png_read_row(png_ptr, row, NULL);
- row += row_bytes;
- }
- }
-
- return 1;
- }
-}
-
-/* Just the row reading part of png_image_read. */
-static int
-png_image_read_composite(png_voidp argument)
-{
- png_image_read_control *display = png_voidcast(png_image_read_control*,
- argument);
- png_imagep image = display->image;
- png_structrp png_ptr = image->opaque->png_ptr;
- int passes;
-
- switch (png_ptr->interlaced)
- {
- case PNG_INTERLACE_NONE:
- passes = 1;
- break;
-
- case PNG_INTERLACE_ADAM7:
- passes = PNG_INTERLACE_ADAM7_PASSES;
- break;
-
- default:
- png_error(png_ptr, "unknown interlace type");
- }
-
- {
- png_uint_32 height = image->height;
- png_uint_32 width = image->width;
- ptrdiff_t step_row = display->row_bytes;
- unsigned int channels =
- (image->format & PNG_FORMAT_FLAG_COLOR) != 0 ? 3 : 1;
- int pass;
-
- for (pass = 0; pass < passes; ++pass)
- {
- unsigned int startx, stepx, stepy;
- png_uint_32 y;
-
- if (png_ptr->interlaced == PNG_INTERLACE_ADAM7)
- {
- /* The row may be empty for a short image: */
- if (PNG_PASS_COLS(width, pass) == 0)
- continue;
-
- startx = PNG_PASS_START_COL(pass) * channels;
- stepx = PNG_PASS_COL_OFFSET(pass) * channels;
- y = PNG_PASS_START_ROW(pass);
- stepy = PNG_PASS_ROW_OFFSET(pass);
- }
-
- else
- {
- y = 0;
- startx = 0;
- stepx = channels;
- stepy = 1;
- }
-
- for (; y<height; y += stepy)
- {
- png_bytep inrow = png_voidcast(png_bytep, display->local_row);
- png_bytep outrow;
- png_const_bytep end_row;
-
- /* Read the row, which is packed: */
- png_read_row(png_ptr, inrow, NULL);
-
- outrow = png_voidcast(png_bytep, display->first_row);
- outrow += y * step_row;
- end_row = outrow + width * channels;
-
- /* Now do the composition on each pixel in this row. */
- outrow += startx;
- for (; outrow < end_row; outrow += stepx)
- {
- png_byte alpha = inrow[channels];
-
- if (alpha > 0) /* else no change to the output */
- {
- unsigned int c;
-
- for (c=0; c<channels; ++c)
- {
- png_uint_32 component = inrow[c];
-
- if (alpha < 255) /* else just use component */
- {
- /* This is PNG_OPTIMIZED_ALPHA, the component value
- * is a linear 8-bit value. Combine this with the
- * current outrow[c] value which is sRGB encoded.
- * Arithmetic here is 16-bits to preserve the output
- * values correctly.
- */
- component *= 257*255; /* =65535 */
- component += (255-alpha)*png_sRGB_table[outrow[c]];
-
- /* So 'component' is scaled by 255*65535 and is
- * therefore appropriate for the sRGB to linear
- * conversion table.
- */
- component = PNG_sRGB_FROM_LINEAR(component);
- }
-
- outrow[c] = (png_byte)component;
- }
- }
-
- inrow += channels+1; /* components and alpha channel */
- }
- }
- }
- }
-
- return 1;
-}
-
-/* The do_local_background case; called when all the following transforms are to
- * be done:
- *
- * PNG_RGB_TO_GRAY
- * PNG_COMPOSITE
- * PNG_GAMMA
- *
- * This is a work-around for the fact that both the PNG_RGB_TO_GRAY and
- * PNG_COMPOSITE code performs gamma correction, so we get double gamma
- * correction. The fix-up is to prevent the PNG_COMPOSITE operation from
- * happening inside libpng, so this routine sees an 8 or 16-bit gray+alpha
- * row and handles the removal or pre-multiplication of the alpha channel.
- */
-static int
-png_image_read_background(png_voidp argument)
-{
- png_image_read_control *display = png_voidcast(png_image_read_control*,
- argument);
- png_imagep image = display->image;
- png_structrp png_ptr = image->opaque->png_ptr;
- png_inforp info_ptr = image->opaque->info_ptr;
- png_uint_32 height = image->height;
- png_uint_32 width = image->width;
- int pass, passes;
-
- /* Double check the convoluted logic below. We expect to get here with
- * libpng doing rgb to gray and gamma correction but background processing
- * left to the png_image_read_background function. The rows libpng produce
- * might be 8 or 16-bit but should always have two channels; gray plus alpha.
- */
- if ((png_ptr->transformations & PNG_RGB_TO_GRAY) == 0)
- png_error(png_ptr, "lost rgb to gray");
-
- if ((png_ptr->transformations & PNG_COMPOSE) != 0)
- png_error(png_ptr, "unexpected compose");
-
- if (png_get_channels(png_ptr, info_ptr) != 2)
- png_error(png_ptr, "lost/gained channels");
-
- /* Expect the 8-bit case to always remove the alpha channel */
- if ((image->format & PNG_FORMAT_FLAG_LINEAR) == 0 &&
- (image->format & PNG_FORMAT_FLAG_ALPHA) != 0)
- png_error(png_ptr, "unexpected 8-bit transformation");
-
- switch (png_ptr->interlaced)
- {
- case PNG_INTERLACE_NONE:
- passes = 1;
- break;
-
- case PNG_INTERLACE_ADAM7:
- passes = PNG_INTERLACE_ADAM7_PASSES;
- break;
-
- default:
- png_error(png_ptr, "unknown interlace type");
- }
-
- /* Use direct access to info_ptr here because otherwise the simplified API
- * would require PNG_EASY_ACCESS_SUPPORTED (just for this.) Note this is
- * checking the value after libpng expansions, not the original value in the
- * PNG.
- */
- switch (info_ptr->bit_depth)
- {
- case 8:
- /* 8-bit sRGB gray values with an alpha channel; the alpha channel is
- * to be removed by composing on a background: either the row if
- * display->background is NULL or display->background->green if not.
- * Unlike the code above ALPHA_OPTIMIZED has *not* been done.
- */
- {
- png_bytep first_row = png_voidcast(png_bytep, display->first_row);
- ptrdiff_t step_row = display->row_bytes;
-
- for (pass = 0; pass < passes; ++pass)
- {
- png_bytep row = png_voidcast(png_bytep, display->first_row);
- unsigned int startx, stepx, stepy;
- png_uint_32 y;
-
- if (png_ptr->interlaced == PNG_INTERLACE_ADAM7)
- {
- /* The row may be empty for a short image: */
- if (PNG_PASS_COLS(width, pass) == 0)
- continue;
-
- startx = PNG_PASS_START_COL(pass);
- stepx = PNG_PASS_COL_OFFSET(pass);
- y = PNG_PASS_START_ROW(pass);
- stepy = PNG_PASS_ROW_OFFSET(pass);
- }
-
- else
- {
- y = 0;
- startx = 0;
- stepx = stepy = 1;
- }
-
- if (display->background == NULL)
- {
- for (; y<height; y += stepy)
- {
- png_bytep inrow = png_voidcast(png_bytep,
- display->local_row);
- png_bytep outrow = first_row + y * step_row;
- png_const_bytep end_row = outrow + width;
-
- /* Read the row, which is packed: */
- png_read_row(png_ptr, inrow, NULL);
-
- /* Now do the composition on each pixel in this row. */
- outrow += startx;
- for (; outrow < end_row; outrow += stepx)
- {
- png_byte alpha = inrow[1];
-
- if (alpha > 0) /* else no change to the output */
- {
- png_uint_32 component = inrow[0];
-
- if (alpha < 255) /* else just use component */
- {
- /* Since PNG_OPTIMIZED_ALPHA was not set it is
- * necessary to invert the sRGB transfer
- * function and multiply the alpha out.
- */
- component = png_sRGB_table[component] * alpha;
- component += png_sRGB_table[outrow[0]] *
- (255-alpha);
- component = PNG_sRGB_FROM_LINEAR(component);
- }
-
- outrow[0] = (png_byte)component;
- }
-
- inrow += 2; /* gray and alpha channel */
- }
- }
- }
-
- else /* constant background value */
- {
- png_byte background8 = display->background->green;
- png_uint_16 background = png_sRGB_table[background8];
-
- for (; y<height; y += stepy)
- {
- png_bytep inrow = png_voidcast(png_bytep,
- display->local_row);
- png_bytep outrow = first_row + y * step_row;
- png_const_bytep end_row = outrow + width;
-
- /* Read the row, which is packed: */
- png_read_row(png_ptr, inrow, NULL);
-
- /* Now do the composition on each pixel in this row. */
- outrow += startx;
- for (; outrow < end_row; outrow += stepx)
- {
- png_byte alpha = inrow[1];
-
- if (alpha > 0) /* else use background */
- {
- png_uint_32 component = inrow[0];
-
- if (alpha < 255) /* else just use component */
- {
- component = png_sRGB_table[component] * alpha;
- component += background * (255-alpha);
- component = PNG_sRGB_FROM_LINEAR(component);
- }
-
- outrow[0] = (png_byte)component;
- }
-
- else
- outrow[0] = background8;
-
- inrow += 2; /* gray and alpha channel */
- }
-
- row += display->row_bytes;
- }
- }
- }
- }
- break;
-
- case 16:
- /* 16-bit linear with pre-multiplied alpha; the pre-multiplication must
- * still be done and, maybe, the alpha channel removed. This code also
- * handles the alpha-first option.
- */
- {
- png_uint_16p first_row = png_voidcast(png_uint_16p,
- display->first_row);
- /* The division by two is safe because the caller passed in a
- * stride which was multiplied by 2 (below) to get row_bytes.
- */
- ptrdiff_t step_row = display->row_bytes / 2;
- unsigned int preserve_alpha = (image->format &
- PNG_FORMAT_FLAG_ALPHA) != 0;
- unsigned int outchannels = 1U+preserve_alpha;
- int swap_alpha = 0;
-
-# ifdef PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED
- if (preserve_alpha != 0 &&
- (image->format & PNG_FORMAT_FLAG_AFIRST) != 0)
- swap_alpha = 1;
-# endif
-
- for (pass = 0; pass < passes; ++pass)
- {
- unsigned int startx, stepx, stepy;
- png_uint_32 y;
-
- /* The 'x' start and step are adjusted to output components here.
- */
- if (png_ptr->interlaced == PNG_INTERLACE_ADAM7)
- {
- /* The row may be empty for a short image: */
- if (PNG_PASS_COLS(width, pass) == 0)
- continue;
-
- startx = PNG_PASS_START_COL(pass) * outchannels;
- stepx = PNG_PASS_COL_OFFSET(pass) * outchannels;
- y = PNG_PASS_START_ROW(pass);
- stepy = PNG_PASS_ROW_OFFSET(pass);
- }
-
- else
- {
- y = 0;
- startx = 0;
- stepx = outchannels;
- stepy = 1;
- }
-
- for (; y<height; y += stepy)
- {
- png_const_uint_16p inrow;
- png_uint_16p outrow = first_row + y*step_row;
- png_uint_16p end_row = outrow + width * outchannels;
-
- /* Read the row, which is packed: */
- png_read_row(png_ptr, png_voidcast(png_bytep,
- display->local_row), NULL);
- inrow = png_voidcast(png_const_uint_16p, display->local_row);
-
- /* Now do the pre-multiplication on each pixel in this row.
- */
- outrow += startx;
- for (; outrow < end_row; outrow += stepx)
- {
- png_uint_32 component = inrow[0];
- png_uint_16 alpha = inrow[1];
-
- if (alpha > 0) /* else 0 */
- {
- if (alpha < 65535) /* else just use component */
- {
- component *= alpha;
- component += 32767;
- component /= 65535;
- }
- }
-
- else
- component = 0;
-
- outrow[swap_alpha] = (png_uint_16)component;
- if (preserve_alpha != 0)
- outrow[1 ^ swap_alpha] = alpha;
-
- inrow += 2; /* components and alpha channel */
- }
- }
- }
- }
- break;
-
-#ifdef __GNUC__
- default:
- png_error(png_ptr, "unexpected bit depth");
-#endif
- }
-
- return 1;
-}
-
-/* The guts of png_image_finish_read as a png_safe_execute callback. */
-static int
-png_image_read_direct(png_voidp argument)
-{
- png_image_read_control *display = png_voidcast(png_image_read_control*,
- argument);
- png_imagep image = display->image;
- png_structrp png_ptr = image->opaque->png_ptr;
- png_inforp info_ptr = image->opaque->info_ptr;
-
- png_uint_32 format = image->format;
- int linear = (format & PNG_FORMAT_FLAG_LINEAR) != 0;
- int do_local_compose = 0;
- int do_local_background = 0; /* to avoid double gamma correction bug */
- int passes = 0;
-
- /* Add transforms to ensure the correct output format is produced then check
- * that the required implementation support is there. Always expand; always
- * need 8 bits minimum, no palette and expanded tRNS.
- */
- png_set_expand(png_ptr);
-
- /* Now check the format to see if it was modified. */
- {
- png_uint_32 base_format = png_image_format(png_ptr) &
- ~PNG_FORMAT_FLAG_COLORMAP /* removed by png_set_expand */;
- png_uint_32 change = format ^ base_format;
- png_fixed_point output_gamma;
- int mode; /* alpha mode */
-
- /* Do this first so that we have a record if rgb to gray is happening. */
- if ((change & PNG_FORMAT_FLAG_COLOR) != 0)
- {
- /* gray<->color transformation required. */
- if ((format & PNG_FORMAT_FLAG_COLOR) != 0)
- png_set_gray_to_rgb(png_ptr);
-
- else
- {
- /* libpng can't do both rgb to gray and
- * background/pre-multiplication if there is also significant gamma
- * correction, because both operations require linear colors and
- * the code only supports one transform doing the gamma correction.
- * Handle this by doing the pre-multiplication or background
- * operation in this code, if necessary.
- *
- * TODO: fix this by rewriting pngrtran.c (!)
- *
- * For the moment (given that fixing this in pngrtran.c is an
- * enormous change) 'do_local_background' is used to indicate that
- * the problem exists.
- */
- if ((base_format & PNG_FORMAT_FLAG_ALPHA) != 0)
- do_local_background = 1/*maybe*/;
-
- png_set_rgb_to_gray_fixed(png_ptr, PNG_ERROR_ACTION_NONE,
- PNG_RGB_TO_GRAY_DEFAULT, PNG_RGB_TO_GRAY_DEFAULT);
- }
-
- change &= ~PNG_FORMAT_FLAG_COLOR;
- }
-
- /* Set the gamma appropriately, linear for 16-bit input, sRGB otherwise.
- */
- {
- png_fixed_point input_gamma_default;
-
- if ((base_format & PNG_FORMAT_FLAG_LINEAR) != 0 &&
- (image->flags & PNG_IMAGE_FLAG_16BIT_sRGB) == 0)
- input_gamma_default = PNG_GAMMA_LINEAR;
- else
- input_gamma_default = PNG_DEFAULT_sRGB;
-
- /* Call png_set_alpha_mode to set the default for the input gamma; the
- * output gamma is set by a second call below.
- */
- png_set_alpha_mode_fixed(png_ptr, PNG_ALPHA_PNG, input_gamma_default);
- }
-
- if (linear != 0)
- {
- /* If there *is* an alpha channel in the input it must be multiplied
- * out; use PNG_ALPHA_STANDARD, otherwise just use PNG_ALPHA_PNG.
- */
- if ((base_format & PNG_FORMAT_FLAG_ALPHA) != 0)
- mode = PNG_ALPHA_STANDARD; /* associated alpha */
-
- else
- mode = PNG_ALPHA_PNG;
-
- output_gamma = PNG_GAMMA_LINEAR;
- }
-
- else
- {
- mode = PNG_ALPHA_PNG;
- output_gamma = PNG_DEFAULT_sRGB;
- }
-
- if ((change & PNG_FORMAT_FLAG_ASSOCIATED_ALPHA) != 0)
- {
- mode = PNG_ALPHA_OPTIMIZED;
- change &= ~PNG_FORMAT_FLAG_ASSOCIATED_ALPHA;
- }
-
- /* If 'do_local_background' is set check for the presence of gamma
- * correction; this is part of the work-round for the libpng bug
- * described above.
- *
- * TODO: fix libpng and remove this.
- */
- if (do_local_background != 0)
- {
- png_fixed_point gtest;
-
- /* This is 'png_gamma_threshold' from pngrtran.c; the test used for
- * gamma correction, the screen gamma hasn't been set on png_struct
- * yet; it's set below. png_struct::gamma, however, is set to the
- * final value.
- */
- if (png_muldiv(>est, output_gamma, png_ptr->colorspace.gamma,
- PNG_FP_1) != 0 && png_gamma_significant(gtest) == 0)
- do_local_background = 0;
-
- else if (mode == PNG_ALPHA_STANDARD)
- {
- do_local_background = 2/*required*/;
- mode = PNG_ALPHA_PNG; /* prevent libpng doing it */
- }
-
- /* else leave as 1 for the checks below */
- }
-
- /* If the bit-depth changes then handle that here. */
- if ((change & PNG_FORMAT_FLAG_LINEAR) != 0)
- {
- if (linear != 0 /*16-bit output*/)
- png_set_expand_16(png_ptr);
-
- else /* 8-bit output */
- png_set_scale_16(png_ptr);
-
- change &= ~PNG_FORMAT_FLAG_LINEAR;
- }
-
- /* Now the background/alpha channel changes. */
- if ((change & PNG_FORMAT_FLAG_ALPHA) != 0)
- {
- /* Removing an alpha channel requires composition for the 8-bit
- * formats; for the 16-bit it is already done, above, by the
- * pre-multiplication and the channel just needs to be stripped.
- */
- if ((base_format & PNG_FORMAT_FLAG_ALPHA) != 0)
- {
- /* If RGB->gray is happening the alpha channel must be left and the
- * operation completed locally.
- *
- * TODO: fix libpng and remove this.
- */
- if (do_local_background != 0)
- do_local_background = 2/*required*/;
-
- /* 16-bit output: just remove the channel */
- else if (linear != 0) /* compose on black (well, pre-multiply) */
- png_set_strip_alpha(png_ptr);
-
- /* 8-bit output: do an appropriate compose */
- else if (display->background != NULL)
- {
- png_color_16 c;
-
- c.index = 0; /*unused*/
- c.red = display->background->red;
- c.green = display->background->green;
- c.blue = display->background->blue;
- c.gray = display->background->green;
-
- /* This is always an 8-bit sRGB value, using the 'green' channel
- * for gray is much better than calculating the luminance here;
- * we can get off-by-one errors in that calculation relative to
- * the app expectations and that will show up in transparent
- * pixels.
- */
- png_set_background_fixed(png_ptr, &c,
- PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/,
- 0/*gamma: not used*/);
- }
-
- else /* compose on row: implemented below. */
- {
- do_local_compose = 1;
- /* This leaves the alpha channel in the output, so it has to be
- * removed by the code below. Set the encoding to the 'OPTIMIZE'
- * one so the code only has to hack on the pixels that require
- * composition.
- */
- mode = PNG_ALPHA_OPTIMIZED;
- }
- }
-
- else /* output needs an alpha channel */
- {
- /* This is tricky because it happens before the swap operation has
- * been accomplished; however, the swap does *not* swap the added
- * alpha channel (weird API), so it must be added in the correct
- * place.
- */
- png_uint_32 filler; /* opaque filler */
- int where;
-
- if (linear != 0)
- filler = 65535;
-
- else
- filler = 255;
-
-#ifdef PNG_FORMAT_AFIRST_SUPPORTED
- if ((format & PNG_FORMAT_FLAG_AFIRST) != 0)
- {
- where = PNG_FILLER_BEFORE;
- change &= ~PNG_FORMAT_FLAG_AFIRST;
- }
-
- else
-#endif
- where = PNG_FILLER_AFTER;
-
- png_set_add_alpha(png_ptr, filler, where);
- }
-
- /* This stops the (irrelevant) call to swap_alpha below. */
- change &= ~PNG_FORMAT_FLAG_ALPHA;
- }
-
- /* Now set the alpha mode correctly; this is always done, even if there is
- * no alpha channel in either the input or the output because it correctly
- * sets the output gamma.
- */
- png_set_alpha_mode_fixed(png_ptr, mode, output_gamma);
-
-# ifdef PNG_FORMAT_BGR_SUPPORTED
- if ((change & PNG_FORMAT_FLAG_BGR) != 0)
- {
- /* Check only the output format; PNG is never BGR; don't do this if
- * the output is gray, but fix up the 'format' value in that case.
- */
- if ((format & PNG_FORMAT_FLAG_COLOR) != 0)
- png_set_bgr(png_ptr);
-
- else
- format &= ~PNG_FORMAT_FLAG_BGR;
-
- change &= ~PNG_FORMAT_FLAG_BGR;
- }
-# endif
-
-# ifdef PNG_FORMAT_AFIRST_SUPPORTED
- if ((change & PNG_FORMAT_FLAG_AFIRST) != 0)
- {
- /* Only relevant if there is an alpha channel - it's particularly
- * important to handle this correctly because do_local_compose may
- * be set above and then libpng will keep the alpha channel for this
- * code to remove.
- */
- if ((format & PNG_FORMAT_FLAG_ALPHA) != 0)
- {
- /* Disable this if doing a local background,
- * TODO: remove this when local background is no longer required.
- */
- if (do_local_background != 2)
- png_set_swap_alpha(png_ptr);
- }
-
- else
- format &= ~PNG_FORMAT_FLAG_AFIRST;
-
- change &= ~PNG_FORMAT_FLAG_AFIRST;
- }
-# endif
-
- /* If the *output* is 16-bit then we need to check for a byte-swap on this
- * architecture.
- */
- if (linear != 0)
- {
- png_uint_16 le = 0x0001;
-
- if ((*(png_const_bytep) & le) != 0)
- png_set_swap(png_ptr);
- }
-
- /* If change is not now 0 some transformation is missing - error out. */
- if (change != 0)
- png_error(png_ptr, "png_read_image: unsupported transformation");
- }
-
- PNG_SKIP_CHUNKS(png_ptr);
-
- /* Update the 'info' structure and make sure the result is as required; first
- * make sure to turn on the interlace handling if it will be required
- * (because it can't be turned on *after* the call to png_read_update_info!)
- *
- * TODO: remove the do_local_background fixup below.
- */
- if (do_local_compose == 0 && do_local_background != 2)
- passes = png_set_interlace_handling(png_ptr);
-
- png_read_update_info(png_ptr, info_ptr);
-
- {
- png_uint_32 info_format = 0;
-
- if ((info_ptr->color_type & PNG_COLOR_MASK_COLOR) != 0)
- info_format |= PNG_FORMAT_FLAG_COLOR;
-
- if ((info_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0)
- {
- /* do_local_compose removes this channel below. */
- if (do_local_compose == 0)
- {
- /* do_local_background does the same if required. */
- if (do_local_background != 2 ||
- (format & PNG_FORMAT_FLAG_ALPHA) != 0)
- info_format |= PNG_FORMAT_FLAG_ALPHA;
- }
- }
-
- else if (do_local_compose != 0) /* internal error */
- png_error(png_ptr, "png_image_read: alpha channel lost");
-
- if ((format & PNG_FORMAT_FLAG_ASSOCIATED_ALPHA) != 0) {
- info_format |= PNG_FORMAT_FLAG_ASSOCIATED_ALPHA;
- }
-
- if (info_ptr->bit_depth == 16)
- info_format |= PNG_FORMAT_FLAG_LINEAR;
-
-#ifdef PNG_FORMAT_BGR_SUPPORTED
- if ((png_ptr->transformations & PNG_BGR) != 0)
- info_format |= PNG_FORMAT_FLAG_BGR;
-#endif
-
-#ifdef PNG_FORMAT_AFIRST_SUPPORTED
- if (do_local_background == 2)
- {
- if ((format & PNG_FORMAT_FLAG_AFIRST) != 0)
- info_format |= PNG_FORMAT_FLAG_AFIRST;
- }
-
- if ((png_ptr->transformations & PNG_SWAP_ALPHA) != 0 ||
- ((png_ptr->transformations & PNG_ADD_ALPHA) != 0 &&
- (png_ptr->flags & PNG_FLAG_FILLER_AFTER) == 0))
- {
- if (do_local_background == 2)
- png_error(png_ptr, "unexpected alpha swap transformation");
-
- info_format |= PNG_FORMAT_FLAG_AFIRST;
- }
-# endif
-
- /* This is actually an internal error. */
- if (info_format != format)
- png_error(png_ptr, "png_read_image: invalid transformations");
- }
-
- /* Now read the rows. If do_local_compose is set then it is necessary to use
- * a local row buffer. The output will be GA, RGBA or BGRA and must be
- * converted to G, RGB or BGR as appropriate. The 'local_row' member of the
- * display acts as a flag.
- */
- {
- png_voidp first_row = display->buffer;
- ptrdiff_t row_bytes = display->row_stride;
-
- if (linear != 0)
- row_bytes *= 2;
-
- /* The following expression is designed to work correctly whether it gives
- * a signed or an unsigned result.
- */
- if (row_bytes < 0)
- {
- char *ptr = png_voidcast(char*, first_row);
- ptr += (image->height-1) * (-row_bytes);
- first_row = png_voidcast(png_voidp, ptr);
- }
-
- display->first_row = first_row;
- display->row_bytes = row_bytes;
- }
-
- if (do_local_compose != 0)
- {
- int result;
- png_voidp row = png_malloc(png_ptr, png_get_rowbytes(png_ptr, info_ptr));
-
- display->local_row = row;
- result = png_safe_execute(image, png_image_read_composite, display);
- display->local_row = NULL;
- png_free(png_ptr, row);
-
- return result;
- }
-
- else if (do_local_background == 2)
- {
- int result;
- png_voidp row = png_malloc(png_ptr, png_get_rowbytes(png_ptr, info_ptr));
-
- display->local_row = row;
- result = png_safe_execute(image, png_image_read_background, display);
- display->local_row = NULL;
- png_free(png_ptr, row);
-
- return result;
- }
-
- else
- {
- png_alloc_size_t row_bytes = (png_alloc_size_t)display->row_bytes;
-
- while (--passes >= 0)
- {
- png_uint_32 y = image->height;
- png_bytep row = png_voidcast(png_bytep, display->first_row);
-
- for (; y > 0; --y)
- {
- png_read_row(png_ptr, row, NULL);
- row += row_bytes;
- }
- }
-
- return 1;
- }
-}
-
-int PNGAPI
-png_image_finish_read(png_imagep image, png_const_colorp background,
- void *buffer, png_int_32 row_stride, void *colormap)
-{
- if (image != NULL && image->version == PNG_IMAGE_VERSION)
- {
- /* Check for row_stride overflow. This check is not performed on the
- * original PNG format because it may not occur in the output PNG format
- * and libpng deals with the issues of reading the original.
- */
- unsigned int channels = PNG_IMAGE_PIXEL_CHANNELS(image->format);
-
- /* The following checks just the 'row_stride' calculation to ensure it
- * fits in a signed 32-bit value. Because channels/components can be
- * either 1 or 2 bytes in size the length of a row can still overflow 32
- * bits; this is just to verify that the 'row_stride' argument can be
- * represented.
- */
- if (image->width <= 0x7fffffffU/channels) /* no overflow */
- {
- png_uint_32 check;
- png_uint_32 png_row_stride = image->width * channels;
-
- if (row_stride == 0)
- row_stride = (png_int_32)/*SAFE*/png_row_stride;
-
- if (row_stride < 0)
- check = (png_uint_32)(-row_stride);
-
- else
- check = (png_uint_32)row_stride;
-
- /* This verifies 'check', the absolute value of the actual stride
- * passed in and detects overflow in the application calculation (i.e.
- * if the app did actually pass in a non-zero 'row_stride'.
- */
- if (image->opaque != NULL && buffer != NULL && check >= png_row_stride)
- {
- /* Now check for overflow of the image buffer calculation; this
- * limits the whole image size to 32 bits for API compatibility with
- * the current, 32-bit, PNG_IMAGE_BUFFER_SIZE macro.
- *
- * The PNG_IMAGE_BUFFER_SIZE macro is:
- *
- * (PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt)*height*(row_stride))
- *
- * And the component size is always 1 or 2, so make sure that the
- * number of *bytes* that the application is saying are available
- * does actually fit into a 32-bit number.
- *
- * NOTE: this will be changed in 1.7 because PNG_IMAGE_BUFFER_SIZE
- * will be changed to use png_alloc_size_t; bigger images can be
- * accommodated on 64-bit systems.
- */
- if (image->height <=
- 0xffffffffU/PNG_IMAGE_PIXEL_COMPONENT_SIZE(image->format)/check)
- {
- if ((image->format & PNG_FORMAT_FLAG_COLORMAP) == 0 ||
- (image->colormap_entries > 0 && colormap != NULL))
- {
- int result;
- png_image_read_control display;
-
- memset(&display, 0, (sizeof display));
- display.image = image;
- display.buffer = buffer;
- display.row_stride = row_stride;
- display.colormap = colormap;
- display.background = background;
- display.local_row = NULL;
-
- /* Choose the correct 'end' routine; for the color-map case
- * all the setup has already been done.
- */
- if ((image->format & PNG_FORMAT_FLAG_COLORMAP) != 0)
- result =
- png_safe_execute(image,
- png_image_read_colormap, &display) &&
- png_safe_execute(image,
- png_image_read_colormapped, &display);
-
- else
- result =
- png_safe_execute(image,
- png_image_read_direct, &display);
-
- png_image_free(image);
- return result;
- }
-
- else
- return png_image_error(image,
- "png_image_finish_read[color-map]: no color-map");
- }
-
- else
- return png_image_error(image,
- "png_image_finish_read: image too large");
- }
-
- else
- return png_image_error(image,
- "png_image_finish_read: invalid argument");
- }
-
- else
- return png_image_error(image,
- "png_image_finish_read: row_stride too large");
- }
-
- else if (image != NULL)
- return png_image_error(image,
- "png_image_finish_read: damaged PNG_IMAGE_VERSION");
-
- return 0;
-}
-
-#endif /* SIMPLIFIED_READ */
-#endif /* READ */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngread.lo b/3rdparty/libpng/libpng-1.6.37/pngread.lo
deleted file mode 100644
index 45ef05c..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngread.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# pngread.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/pngread.o'
-
-# Name of the non-PIC object
-non_pic_object='pngread.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/pngread.o b/3rdparty/libpng/libpng-1.6.37/pngread.o
deleted file mode 100644
index a61de74..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngread.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngrio.c b/3rdparty/libpng/libpng-1.6.37/pngrio.c
deleted file mode 100644
index 7946358..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngrio.c
+++ /dev/null
@@ -1,120 +0,0 @@
-
-/* pngrio.c - functions for data input
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * This file provides a location for all input. Users who need
- * special handling are expected to write a function that has the same
- * arguments as this and performs a similar function, but that possibly
- * has a different input method. Note that you shouldn't change this
- * function, but rather write a replacement function and then make
- * libpng use it at run time with png_set_read_fn(...).
- */
-
-#include "pngpriv.h"
-
-#ifdef PNG_READ_SUPPORTED
-
-/* Read the data from whatever input you are using. The default routine
- * reads from a file pointer. Note that this routine sometimes gets called
- * with very small lengths, so you should implement some kind of simple
- * buffering if you are using unbuffered reads. This should never be asked
- * to read more than 64K on a 16-bit machine.
- */
-void /* PRIVATE */
-png_read_data(png_structrp png_ptr, png_bytep data, size_t length)
-{
- png_debug1(4, "reading %d bytes", (int)length);
-
- if (png_ptr->read_data_fn != NULL)
- (*(png_ptr->read_data_fn))(png_ptr, data, length);
-
- else
- png_error(png_ptr, "Call to NULL read function");
-}
-
-#ifdef PNG_STDIO_SUPPORTED
-/* This is the function that does the actual reading of data. If you are
- * not reading from a standard C stream, you should create a replacement
- * read_data function and use it at run time with png_set_read_fn(), rather
- * than changing the library.
- */
-void PNGCBAPI
-png_default_read_data(png_structp png_ptr, png_bytep data, size_t length)
-{
- size_t check;
-
- if (png_ptr == NULL)
- return;
-
- /* fread() returns 0 on error, so it is OK to store this in a size_t
- * instead of an int, which is what fread() actually returns.
- */
- check = fread(data, 1, length, png_voidcast(png_FILE_p, png_ptr->io_ptr));
-
- if (check != length)
- png_error(png_ptr, "Read Error");
-}
-#endif
-
-/* This function allows the application to supply a new input function
- * for libpng if standard C streams aren't being used.
- *
- * This function takes as its arguments:
- *
- * png_ptr - pointer to a png input data structure
- *
- * io_ptr - pointer to user supplied structure containing info about
- * the input functions. May be NULL.
- *
- * read_data_fn - pointer to a new input function that takes as its
- * arguments a pointer to a png_struct, a pointer to
- * a location where input data can be stored, and a 32-bit
- * unsigned int that is the number of bytes to be read.
- * To exit and output any fatal error messages the new write
- * function should call png_error(png_ptr, "Error msg").
- * May be NULL, in which case libpng's default function will
- * be used.
- */
-void PNGAPI
-png_set_read_fn(png_structrp png_ptr, png_voidp io_ptr,
- png_rw_ptr read_data_fn)
-{
- if (png_ptr == NULL)
- return;
-
- png_ptr->io_ptr = io_ptr;
-
-#ifdef PNG_STDIO_SUPPORTED
- if (read_data_fn != NULL)
- png_ptr->read_data_fn = read_data_fn;
-
- else
- png_ptr->read_data_fn = png_default_read_data;
-#else
- png_ptr->read_data_fn = read_data_fn;
-#endif
-
-#ifdef PNG_WRITE_SUPPORTED
- /* It is an error to write to a read device */
- if (png_ptr->write_data_fn != NULL)
- {
- png_ptr->write_data_fn = NULL;
- png_warning(png_ptr,
- "Can't set both read_data_fn and write_data_fn in the"
- " same structure");
- }
-#endif
-
-#ifdef PNG_WRITE_FLUSH_SUPPORTED
- png_ptr->output_flush_fn = NULL;
-#endif
-}
-#endif /* READ */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngrio.lo b/3rdparty/libpng/libpng-1.6.37/pngrio.lo
deleted file mode 100644
index 8bdcc70..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngrio.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# pngrio.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/pngrio.o'
-
-# Name of the non-PIC object
-non_pic_object='pngrio.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/pngrio.o b/3rdparty/libpng/libpng-1.6.37/pngrio.o
deleted file mode 100644
index 22da278..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngrio.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngrtran.c b/3rdparty/libpng/libpng-1.6.37/pngrtran.c
deleted file mode 100644
index 9a8fad9..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngrtran.c
+++ /dev/null
@@ -1,5044 +0,0 @@
-
-/* pngrtran.c - transforms the data in a row for PNG readers
- *
- * Copyright (c) 2018-2019 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * This file contains functions optionally called by an application
- * in order to tell libpng how to handle data when reading a PNG.
- * Transformations that are used in both reading and writing are
- * in pngtrans.c.
- */
-
-#include "pngpriv.h"
-
-#ifdef PNG_ARM_NEON_IMPLEMENTATION
-# if PNG_ARM_NEON_IMPLEMENTATION == 1
-# define PNG_ARM_NEON_INTRINSICS_AVAILABLE
-# if defined(_MSC_VER) && defined(_M_ARM64)
-# include <arm64_neon.h>
-# else
-# include <arm_neon.h>
-# endif
-# endif
-#endif
-
-#ifdef PNG_READ_SUPPORTED
-
-/* Set the action on getting a CRC error for an ancillary or critical chunk. */
-void PNGAPI
-png_set_crc_action(png_structrp png_ptr, int crit_action, int ancil_action)
-{
- png_debug(1, "in png_set_crc_action");
-
- if (png_ptr == NULL)
- return;
-
- /* Tell libpng how we react to CRC errors in critical chunks */
- switch (crit_action)
- {
- case PNG_CRC_NO_CHANGE: /* Leave setting as is */
- break;
-
- case PNG_CRC_WARN_USE: /* Warn/use data */
- png_ptr->flags &= ~PNG_FLAG_CRC_CRITICAL_MASK;
- png_ptr->flags |= PNG_FLAG_CRC_CRITICAL_USE;
- break;
-
- case PNG_CRC_QUIET_USE: /* Quiet/use data */
- png_ptr->flags &= ~PNG_FLAG_CRC_CRITICAL_MASK;
- png_ptr->flags |= PNG_FLAG_CRC_CRITICAL_USE |
- PNG_FLAG_CRC_CRITICAL_IGNORE;
- break;
-
- case PNG_CRC_WARN_DISCARD: /* Not a valid action for critical data */
- png_warning(png_ptr,
- "Can't discard critical data on CRC error");
- /* FALLTHROUGH */
- case PNG_CRC_ERROR_QUIT: /* Error/quit */
-
- case PNG_CRC_DEFAULT:
- default:
- png_ptr->flags &= ~PNG_FLAG_CRC_CRITICAL_MASK;
- break;
- }
-
- /* Tell libpng how we react to CRC errors in ancillary chunks */
- switch (ancil_action)
- {
- case PNG_CRC_NO_CHANGE: /* Leave setting as is */
- break;
-
- case PNG_CRC_WARN_USE: /* Warn/use data */
- png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK;
- png_ptr->flags |= PNG_FLAG_CRC_ANCILLARY_USE;
- break;
-
- case PNG_CRC_QUIET_USE: /* Quiet/use data */
- png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK;
- png_ptr->flags |= PNG_FLAG_CRC_ANCILLARY_USE |
- PNG_FLAG_CRC_ANCILLARY_NOWARN;
- break;
-
- case PNG_CRC_ERROR_QUIT: /* Error/quit */
- png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK;
- png_ptr->flags |= PNG_FLAG_CRC_ANCILLARY_NOWARN;
- break;
-
- case PNG_CRC_WARN_DISCARD: /* Warn/discard data */
-
- case PNG_CRC_DEFAULT:
- default:
- png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK;
- break;
- }
-}
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
-/* Is it OK to set a transformation now? Only if png_start_read_image or
- * png_read_update_info have not been called. It is not necessary for the IHDR
- * to have been read in all cases; the need_IHDR parameter allows for this
- * check too.
- */
-static int
-png_rtran_ok(png_structrp png_ptr, int need_IHDR)
-{
- if (png_ptr != NULL)
- {
- if ((png_ptr->flags & PNG_FLAG_ROW_INIT) != 0)
- png_app_error(png_ptr,
- "invalid after png_start_read_image or png_read_update_info");
-
- else if (need_IHDR && (png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_app_error(png_ptr, "invalid before the PNG header has been read");
-
- else
- {
- /* Turn on failure to initialize correctly for all transforms. */
- png_ptr->flags |= PNG_FLAG_DETECT_UNINITIALIZED;
-
- return 1; /* Ok */
- }
- }
-
- return 0; /* no png_error possible! */
-}
-#endif
-
-#ifdef PNG_READ_BACKGROUND_SUPPORTED
-/* Handle alpha and tRNS via a background color */
-void PNGFAPI
-png_set_background_fixed(png_structrp png_ptr,
- png_const_color_16p background_color, int background_gamma_code,
- int need_expand, png_fixed_point background_gamma)
-{
- png_debug(1, "in png_set_background_fixed");
-
- if (png_rtran_ok(png_ptr, 0) == 0 || background_color == NULL)
- return;
-
- if (background_gamma_code == PNG_BACKGROUND_GAMMA_UNKNOWN)
- {
- png_warning(png_ptr, "Application must supply a known background gamma");
- return;
- }
-
- png_ptr->transformations |= PNG_COMPOSE | PNG_STRIP_ALPHA;
- png_ptr->transformations &= ~PNG_ENCODE_ALPHA;
- png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
-
- png_ptr->background = *background_color;
- png_ptr->background_gamma = background_gamma;
- png_ptr->background_gamma_type = (png_byte)(background_gamma_code);
- if (need_expand != 0)
- png_ptr->transformations |= PNG_BACKGROUND_EXPAND;
- else
- png_ptr->transformations &= ~PNG_BACKGROUND_EXPAND;
-}
-
-# ifdef PNG_FLOATING_POINT_SUPPORTED
-void PNGAPI
-png_set_background(png_structrp png_ptr,
- png_const_color_16p background_color, int background_gamma_code,
- int need_expand, double background_gamma)
-{
- png_set_background_fixed(png_ptr, background_color, background_gamma_code,
- need_expand, png_fixed(png_ptr, background_gamma, "png_set_background"));
-}
-# endif /* FLOATING_POINT */
-#endif /* READ_BACKGROUND */
-
-/* Scale 16-bit depth files to 8-bit depth. If both of these are set then the
- * one that pngrtran does first (scale) happens. This is necessary to allow the
- * TRANSFORM and API behavior to be somewhat consistent, and it's simpler.
- */
-#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
-void PNGAPI
-png_set_scale_16(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_scale_16");
-
- if (png_rtran_ok(png_ptr, 0) == 0)
- return;
-
- png_ptr->transformations |= PNG_SCALE_16_TO_8;
-}
-#endif
-
-#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
-/* Chop 16-bit depth files to 8-bit depth */
-void PNGAPI
-png_set_strip_16(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_strip_16");
-
- if (png_rtran_ok(png_ptr, 0) == 0)
- return;
-
- png_ptr->transformations |= PNG_16_TO_8;
-}
-#endif
-
-#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
-void PNGAPI
-png_set_strip_alpha(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_strip_alpha");
-
- if (png_rtran_ok(png_ptr, 0) == 0)
- return;
-
- png_ptr->transformations |= PNG_STRIP_ALPHA;
-}
-#endif
-
-#if defined(PNG_READ_ALPHA_MODE_SUPPORTED) || defined(PNG_READ_GAMMA_SUPPORTED)
-static png_fixed_point
-translate_gamma_flags(png_structrp png_ptr, png_fixed_point output_gamma,
- int is_screen)
-{
- /* Check for flag values. The main reason for having the old Mac value as a
- * flag is that it is pretty near impossible to work out what the correct
- * value is from Apple documentation - a working Mac system is needed to
- * discover the value!
- */
- if (output_gamma == PNG_DEFAULT_sRGB ||
- output_gamma == PNG_FP_1 / PNG_DEFAULT_sRGB)
- {
- /* If there is no sRGB support this just sets the gamma to the standard
- * sRGB value. (This is a side effect of using this function!)
- */
-# ifdef PNG_READ_sRGB_SUPPORTED
- png_ptr->flags |= PNG_FLAG_ASSUME_sRGB;
-# else
- PNG_UNUSED(png_ptr)
-# endif
- if (is_screen != 0)
- output_gamma = PNG_GAMMA_sRGB;
- else
- output_gamma = PNG_GAMMA_sRGB_INVERSE;
- }
-
- else if (output_gamma == PNG_GAMMA_MAC_18 ||
- output_gamma == PNG_FP_1 / PNG_GAMMA_MAC_18)
- {
- if (is_screen != 0)
- output_gamma = PNG_GAMMA_MAC_OLD;
- else
- output_gamma = PNG_GAMMA_MAC_INVERSE;
- }
-
- return output_gamma;
-}
-
-# ifdef PNG_FLOATING_POINT_SUPPORTED
-static png_fixed_point
-convert_gamma_value(png_structrp png_ptr, double output_gamma)
-{
- /* The following silently ignores cases where fixed point (times 100,000)
- * gamma values are passed to the floating point API. This is safe and it
- * means the fixed point constants work just fine with the floating point
- * API. The alternative would just lead to undetected errors and spurious
- * bug reports. Negative values fail inside the _fixed API unless they
- * correspond to the flag values.
- */
- if (output_gamma > 0 && output_gamma < 128)
- output_gamma *= PNG_FP_1;
-
- /* This preserves -1 and -2 exactly: */
- output_gamma = floor(output_gamma + .5);
-
- if (output_gamma > PNG_FP_MAX || output_gamma < PNG_FP_MIN)
- png_fixed_error(png_ptr, "gamma value");
-
- return (png_fixed_point)output_gamma;
-}
-# endif
-#endif /* READ_ALPHA_MODE || READ_GAMMA */
-
-#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
-void PNGFAPI
-png_set_alpha_mode_fixed(png_structrp png_ptr, int mode,
- png_fixed_point output_gamma)
-{
- int compose = 0;
- png_fixed_point file_gamma;
-
- png_debug(1, "in png_set_alpha_mode");
-
- if (png_rtran_ok(png_ptr, 0) == 0)
- return;
-
- output_gamma = translate_gamma_flags(png_ptr, output_gamma, 1/*screen*/);
-
- /* Validate the value to ensure it is in a reasonable range. The value
- * is expected to be 1 or greater, but this range test allows for some
- * viewing correction values. The intent is to weed out users of this API
- * who use the inverse of the gamma value accidentally! Since some of these
- * values are reasonable this may have to be changed:
- *
- * 1.6.x: changed from 0.07..3 to 0.01..100 (to accommodate the optimal 16-bit
- * gamma of 36, and its reciprocal.)
- */
- if (output_gamma < 1000 || output_gamma > 10000000)
- png_error(png_ptr, "output gamma out of expected range");
-
- /* The default file gamma is the inverse of the output gamma; the output
- * gamma may be changed below so get the file value first:
- */
- file_gamma = png_reciprocal(output_gamma);
-
- /* There are really 8 possibilities here, composed of any combination
- * of:
- *
- * premultiply the color channels
- * do not encode non-opaque pixels
- * encode the alpha as well as the color channels
- *
- * The differences disappear if the input/output ('screen') gamma is 1.0,
- * because then the encoding is a no-op and there is only the choice of
- * premultiplying the color channels or not.
- *
- * png_set_alpha_mode and png_set_background interact because both use
- * png_compose to do the work. Calling both is only useful when
- * png_set_alpha_mode is used to set the default mode - PNG_ALPHA_PNG - along
- * with a default gamma value. Otherwise PNG_COMPOSE must not be set.
- */
- switch (mode)
- {
- case PNG_ALPHA_PNG: /* default: png standard */
- /* No compose, but it may be set by png_set_background! */
- png_ptr->transformations &= ~PNG_ENCODE_ALPHA;
- png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
- break;
-
- case PNG_ALPHA_ASSOCIATED: /* color channels premultiplied */
- compose = 1;
- png_ptr->transformations &= ~PNG_ENCODE_ALPHA;
- png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
- /* The output is linear: */
- output_gamma = PNG_FP_1;
- break;
-
- case PNG_ALPHA_OPTIMIZED: /* associated, non-opaque pixels linear */
- compose = 1;
- png_ptr->transformations &= ~PNG_ENCODE_ALPHA;
- png_ptr->flags |= PNG_FLAG_OPTIMIZE_ALPHA;
- /* output_gamma records the encoding of opaque pixels! */
- break;
-
- case PNG_ALPHA_BROKEN: /* associated, non-linear, alpha encoded */
- compose = 1;
- png_ptr->transformations |= PNG_ENCODE_ALPHA;
- png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
- break;
-
- default:
- png_error(png_ptr, "invalid alpha mode");
- }
-
- /* Only set the default gamma if the file gamma has not been set (this has
- * the side effect that the gamma in a second call to png_set_alpha_mode will
- * be ignored.)
- */
- if (png_ptr->colorspace.gamma == 0)
- {
- png_ptr->colorspace.gamma = file_gamma;
- png_ptr->colorspace.flags |= PNG_COLORSPACE_HAVE_GAMMA;
- }
-
- /* But always set the output gamma: */
- png_ptr->screen_gamma = output_gamma;
-
- /* Finally, if pre-multiplying, set the background fields to achieve the
- * desired result.
- */
- if (compose != 0)
- {
- /* And obtain alpha pre-multiplication by composing on black: */
- memset(&png_ptr->background, 0, (sizeof png_ptr->background));
- png_ptr->background_gamma = png_ptr->colorspace.gamma; /* just in case */
- png_ptr->background_gamma_type = PNG_BACKGROUND_GAMMA_FILE;
- png_ptr->transformations &= ~PNG_BACKGROUND_EXPAND;
-
- if ((png_ptr->transformations & PNG_COMPOSE) != 0)
- png_error(png_ptr,
- "conflicting calls to set alpha mode and background");
-
- png_ptr->transformations |= PNG_COMPOSE;
- }
-}
-
-# ifdef PNG_FLOATING_POINT_SUPPORTED
-void PNGAPI
-png_set_alpha_mode(png_structrp png_ptr, int mode, double output_gamma)
-{
- png_set_alpha_mode_fixed(png_ptr, mode, convert_gamma_value(png_ptr,
- output_gamma));
-}
-# endif
-#endif
-
-#ifdef PNG_READ_QUANTIZE_SUPPORTED
-/* Dither file to 8-bit. Supply a palette, the current number
- * of elements in the palette, the maximum number of elements
- * allowed, and a histogram if possible. If the current number
- * of colors is greater than the maximum number, the palette will be
- * modified to fit in the maximum number. "full_quantize" indicates
- * whether we need a quantizing cube set up for RGB images, or if we
- * simply are reducing the number of colors in a paletted image.
- */
-
-typedef struct png_dsort_struct
-{
- struct png_dsort_struct * next;
- png_byte left;
- png_byte right;
-} png_dsort;
-typedef png_dsort * png_dsortp;
-typedef png_dsort * * png_dsortpp;
-
-void PNGAPI
-png_set_quantize(png_structrp png_ptr, png_colorp palette,
- int num_palette, int maximum_colors, png_const_uint_16p histogram,
- int full_quantize)
-{
- png_debug(1, "in png_set_quantize");
-
- if (png_rtran_ok(png_ptr, 0) == 0)
- return;
-
- png_ptr->transformations |= PNG_QUANTIZE;
-
- if (full_quantize == 0)
- {
- int i;
-
- png_ptr->quantize_index = (png_bytep)png_malloc(png_ptr,
- (png_alloc_size_t)((png_uint_32)num_palette * (sizeof (png_byte))));
- for (i = 0; i < num_palette; i++)
- png_ptr->quantize_index[i] = (png_byte)i;
- }
-
- if (num_palette > maximum_colors)
- {
- if (histogram != NULL)
- {
- /* This is easy enough, just throw out the least used colors.
- * Perhaps not the best solution, but good enough.
- */
-
- int i;
-
- /* Initialize an array to sort colors */
- png_ptr->quantize_sort = (png_bytep)png_malloc(png_ptr,
- (png_alloc_size_t)((png_uint_32)num_palette * (sizeof (png_byte))));
-
- /* Initialize the quantize_sort array */
- for (i = 0; i < num_palette; i++)
- png_ptr->quantize_sort[i] = (png_byte)i;
-
- /* Find the least used palette entries by starting a
- * bubble sort, and running it until we have sorted
- * out enough colors. Note that we don't care about
- * sorting all the colors, just finding which are
- * least used.
- */
-
- for (i = num_palette - 1; i >= maximum_colors; i--)
- {
- int done; /* To stop early if the list is pre-sorted */
- int j;
-
- done = 1;
- for (j = 0; j < i; j++)
- {
- if (histogram[png_ptr->quantize_sort[j]]
- < histogram[png_ptr->quantize_sort[j + 1]])
- {
- png_byte t;
-
- t = png_ptr->quantize_sort[j];
- png_ptr->quantize_sort[j] = png_ptr->quantize_sort[j + 1];
- png_ptr->quantize_sort[j + 1] = t;
- done = 0;
- }
- }
-
- if (done != 0)
- break;
- }
-
- /* Swap the palette around, and set up a table, if necessary */
- if (full_quantize != 0)
- {
- int j = num_palette;
-
- /* Put all the useful colors within the max, but don't
- * move the others.
- */
- for (i = 0; i < maximum_colors; i++)
- {
- if ((int)png_ptr->quantize_sort[i] >= maximum_colors)
- {
- do
- j--;
- while ((int)png_ptr->quantize_sort[j] >= maximum_colors);
-
- palette[i] = palette[j];
- }
- }
- }
- else
- {
- int j = num_palette;
-
- /* Move all the used colors inside the max limit, and
- * develop a translation table.
- */
- for (i = 0; i < maximum_colors; i++)
- {
- /* Only move the colors we need to */
- if ((int)png_ptr->quantize_sort[i] >= maximum_colors)
- {
- png_color tmp_color;
-
- do
- j--;
- while ((int)png_ptr->quantize_sort[j] >= maximum_colors);
-
- tmp_color = palette[j];
- palette[j] = palette[i];
- palette[i] = tmp_color;
- /* Indicate where the color went */
- png_ptr->quantize_index[j] = (png_byte)i;
- png_ptr->quantize_index[i] = (png_byte)j;
- }
- }
-
- /* Find closest color for those colors we are not using */
- for (i = 0; i < num_palette; i++)
- {
- if ((int)png_ptr->quantize_index[i] >= maximum_colors)
- {
- int min_d, k, min_k, d_index;
-
- /* Find the closest color to one we threw out */
- d_index = png_ptr->quantize_index[i];
- min_d = PNG_COLOR_DIST(palette[d_index], palette[0]);
- for (k = 1, min_k = 0; k < maximum_colors; k++)
- {
- int d;
-
- d = PNG_COLOR_DIST(palette[d_index], palette[k]);
-
- if (d < min_d)
- {
- min_d = d;
- min_k = k;
- }
- }
- /* Point to closest color */
- png_ptr->quantize_index[i] = (png_byte)min_k;
- }
- }
- }
- png_free(png_ptr, png_ptr->quantize_sort);
- png_ptr->quantize_sort = NULL;
- }
- else
- {
- /* This is much harder to do simply (and quickly). Perhaps
- * we need to go through a median cut routine, but those
- * don't always behave themselves with only a few colors
- * as input. So we will just find the closest two colors,
- * and throw out one of them (chosen somewhat randomly).
- * [We don't understand this at all, so if someone wants to
- * work on improving it, be our guest - AED, GRP]
- */
- int i;
- int max_d;
- int num_new_palette;
- png_dsortp t;
- png_dsortpp hash;
-
- t = NULL;
-
- /* Initialize palette index arrays */
- png_ptr->index_to_palette = (png_bytep)png_malloc(png_ptr,
- (png_alloc_size_t)((png_uint_32)num_palette *
- (sizeof (png_byte))));
- png_ptr->palette_to_index = (png_bytep)png_malloc(png_ptr,
- (png_alloc_size_t)((png_uint_32)num_palette *
- (sizeof (png_byte))));
-
- /* Initialize the sort array */
- for (i = 0; i < num_palette; i++)
- {
- png_ptr->index_to_palette[i] = (png_byte)i;
- png_ptr->palette_to_index[i] = (png_byte)i;
- }
-
- hash = (png_dsortpp)png_calloc(png_ptr, (png_alloc_size_t)(769 *
- (sizeof (png_dsortp))));
-
- num_new_palette = num_palette;
-
- /* Initial wild guess at how far apart the farthest pixel
- * pair we will be eliminating will be. Larger
- * numbers mean more areas will be allocated, Smaller
- * numbers run the risk of not saving enough data, and
- * having to do this all over again.
- *
- * I have not done extensive checking on this number.
- */
- max_d = 96;
-
- while (num_new_palette > maximum_colors)
- {
- for (i = 0; i < num_new_palette - 1; i++)
- {
- int j;
-
- for (j = i + 1; j < num_new_palette; j++)
- {
- int d;
-
- d = PNG_COLOR_DIST(palette[i], palette[j]);
-
- if (d <= max_d)
- {
-
- t = (png_dsortp)png_malloc_warn(png_ptr,
- (png_alloc_size_t)(sizeof (png_dsort)));
-
- if (t == NULL)
- break;
-
- t->next = hash[d];
- t->left = (png_byte)i;
- t->right = (png_byte)j;
- hash[d] = t;
- }
- }
- if (t == NULL)
- break;
- }
-
- if (t != NULL)
- for (i = 0; i <= max_d; i++)
- {
- if (hash[i] != NULL)
- {
- png_dsortp p;
-
- for (p = hash[i]; p; p = p->next)
- {
- if ((int)png_ptr->index_to_palette[p->left]
- < num_new_palette &&
- (int)png_ptr->index_to_palette[p->right]
- < num_new_palette)
- {
- int j, next_j;
-
- if (num_new_palette & 0x01)
- {
- j = p->left;
- next_j = p->right;
- }
- else
- {
- j = p->right;
- next_j = p->left;
- }
-
- num_new_palette--;
- palette[png_ptr->index_to_palette[j]]
- = palette[num_new_palette];
- if (full_quantize == 0)
- {
- int k;
-
- for (k = 0; k < num_palette; k++)
- {
- if (png_ptr->quantize_index[k] ==
- png_ptr->index_to_palette[j])
- png_ptr->quantize_index[k] =
- png_ptr->index_to_palette[next_j];
-
- if ((int)png_ptr->quantize_index[k] ==
- num_new_palette)
- png_ptr->quantize_index[k] =
- png_ptr->index_to_palette[j];
- }
- }
-
- png_ptr->index_to_palette[png_ptr->palette_to_index
- [num_new_palette]] = png_ptr->index_to_palette[j];
-
- png_ptr->palette_to_index[png_ptr->index_to_palette[j]]
- = png_ptr->palette_to_index[num_new_palette];
-
- png_ptr->index_to_palette[j] =
- (png_byte)num_new_palette;
-
- png_ptr->palette_to_index[num_new_palette] =
- (png_byte)j;
- }
- if (num_new_palette <= maximum_colors)
- break;
- }
- if (num_new_palette <= maximum_colors)
- break;
- }
- }
-
- for (i = 0; i < 769; i++)
- {
- if (hash[i] != NULL)
- {
- png_dsortp p = hash[i];
- while (p)
- {
- t = p->next;
- png_free(png_ptr, p);
- p = t;
- }
- }
- hash[i] = 0;
- }
- max_d += 96;
- }
- png_free(png_ptr, hash);
- png_free(png_ptr, png_ptr->palette_to_index);
- png_free(png_ptr, png_ptr->index_to_palette);
- png_ptr->palette_to_index = NULL;
- png_ptr->index_to_palette = NULL;
- }
- num_palette = maximum_colors;
- }
- if (png_ptr->palette == NULL)
- {
- png_ptr->palette = palette;
- }
- png_ptr->num_palette = (png_uint_16)num_palette;
-
- if (full_quantize != 0)
- {
- int i;
- png_bytep distance;
- int total_bits = PNG_QUANTIZE_RED_BITS + PNG_QUANTIZE_GREEN_BITS +
- PNG_QUANTIZE_BLUE_BITS;
- int num_red = (1 << PNG_QUANTIZE_RED_BITS);
- int num_green = (1 << PNG_QUANTIZE_GREEN_BITS);
- int num_blue = (1 << PNG_QUANTIZE_BLUE_BITS);
- size_t num_entries = ((size_t)1 << total_bits);
-
- png_ptr->palette_lookup = (png_bytep)png_calloc(png_ptr,
- (png_alloc_size_t)(num_entries * (sizeof (png_byte))));
-
- distance = (png_bytep)png_malloc(png_ptr, (png_alloc_size_t)(num_entries *
- (sizeof (png_byte))));
-
- memset(distance, 0xff, num_entries * (sizeof (png_byte)));
-
- for (i = 0; i < num_palette; i++)
- {
- int ir, ig, ib;
- int r = (palette[i].red >> (8 - PNG_QUANTIZE_RED_BITS));
- int g = (palette[i].green >> (8 - PNG_QUANTIZE_GREEN_BITS));
- int b = (palette[i].blue >> (8 - PNG_QUANTIZE_BLUE_BITS));
-
- for (ir = 0; ir < num_red; ir++)
- {
- /* int dr = abs(ir - r); */
- int dr = ((ir > r) ? ir - r : r - ir);
- int index_r = (ir << (PNG_QUANTIZE_BLUE_BITS +
- PNG_QUANTIZE_GREEN_BITS));
-
- for (ig = 0; ig < num_green; ig++)
- {
- /* int dg = abs(ig - g); */
- int dg = ((ig > g) ? ig - g : g - ig);
- int dt = dr + dg;
- int dm = ((dr > dg) ? dr : dg);
- int index_g = index_r | (ig << PNG_QUANTIZE_BLUE_BITS);
-
- for (ib = 0; ib < num_blue; ib++)
- {
- int d_index = index_g | ib;
- /* int db = abs(ib - b); */
- int db = ((ib > b) ? ib - b : b - ib);
- int dmax = ((dm > db) ? dm : db);
- int d = dmax + dt + db;
-
- if (d < (int)distance[d_index])
- {
- distance[d_index] = (png_byte)d;
- png_ptr->palette_lookup[d_index] = (png_byte)i;
- }
- }
- }
- }
- }
-
- png_free(png_ptr, distance);
- }
-}
-#endif /* READ_QUANTIZE */
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
-void PNGFAPI
-png_set_gamma_fixed(png_structrp png_ptr, png_fixed_point scrn_gamma,
- png_fixed_point file_gamma)
-{
- png_debug(1, "in png_set_gamma_fixed");
-
- if (png_rtran_ok(png_ptr, 0) == 0)
- return;
-
- /* New in libpng-1.5.4 - reserve particular negative values as flags. */
- scrn_gamma = translate_gamma_flags(png_ptr, scrn_gamma, 1/*screen*/);
- file_gamma = translate_gamma_flags(png_ptr, file_gamma, 0/*file*/);
-
- /* Checking the gamma values for being >0 was added in 1.5.4 along with the
- * premultiplied alpha support; this actually hides an undocumented feature
- * of the previous implementation which allowed gamma processing to be
- * disabled in background handling. There is no evidence (so far) that this
- * was being used; however, png_set_background itself accepted and must still
- * accept '0' for the gamma value it takes, because it isn't always used.
- *
- * Since this is an API change (albeit a very minor one that removes an
- * undocumented API feature) the following checks were only enabled in
- * libpng-1.6.0.
- */
- if (file_gamma <= 0)
- png_error(png_ptr, "invalid file gamma in png_set_gamma");
-
- if (scrn_gamma <= 0)
- png_error(png_ptr, "invalid screen gamma in png_set_gamma");
-
- /* Set the gamma values unconditionally - this overrides the value in the PNG
- * file if a gAMA chunk was present. png_set_alpha_mode provides a
- * different, easier, way to default the file gamma.
- */
- png_ptr->colorspace.gamma = file_gamma;
- png_ptr->colorspace.flags |= PNG_COLORSPACE_HAVE_GAMMA;
- png_ptr->screen_gamma = scrn_gamma;
-}
-
-# ifdef PNG_FLOATING_POINT_SUPPORTED
-void PNGAPI
-png_set_gamma(png_structrp png_ptr, double scrn_gamma, double file_gamma)
-{
- png_set_gamma_fixed(png_ptr, convert_gamma_value(png_ptr, scrn_gamma),
- convert_gamma_value(png_ptr, file_gamma));
-}
-# endif /* FLOATING_POINT */
-#endif /* READ_GAMMA */
-
-#ifdef PNG_READ_EXPAND_SUPPORTED
-/* Expand paletted images to RGB, expand grayscale images of
- * less than 8-bit depth to 8-bit depth, and expand tRNS chunks
- * to alpha channels.
- */
-void PNGAPI
-png_set_expand(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_expand");
-
- if (png_rtran_ok(png_ptr, 0) == 0)
- return;
-
- png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS);
-}
-
-/* GRR 19990627: the following three functions currently are identical
- * to png_set_expand(). However, it is entirely reasonable that someone
- * might wish to expand an indexed image to RGB but *not* expand a single,
- * fully transparent palette entry to a full alpha channel--perhaps instead
- * convert tRNS to the grayscale/RGB format (16-bit RGB value), or replace
- * the transparent color with a particular RGB value, or drop tRNS entirely.
- * IOW, a future version of the library may make the transformations flag
- * a bit more fine-grained, with separate bits for each of these three
- * functions.
- *
- * More to the point, these functions make it obvious what libpng will be
- * doing, whereas "expand" can (and does) mean any number of things.
- *
- * GRP 20060307: In libpng-1.2.9, png_set_gray_1_2_4_to_8() was modified
- * to expand only the sample depth but not to expand the tRNS to alpha
- * and its name was changed to png_set_expand_gray_1_2_4_to_8().
- */
-
-/* Expand paletted images to RGB. */
-void PNGAPI
-png_set_palette_to_rgb(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_palette_to_rgb");
-
- if (png_rtran_ok(png_ptr, 0) == 0)
- return;
-
- png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS);
-}
-
-/* Expand grayscale images of less than 8-bit depth to 8 bits. */
-void PNGAPI
-png_set_expand_gray_1_2_4_to_8(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_expand_gray_1_2_4_to_8");
-
- if (png_rtran_ok(png_ptr, 0) == 0)
- return;
-
- png_ptr->transformations |= PNG_EXPAND;
-}
-
-/* Expand tRNS chunks to alpha channels. */
-void PNGAPI
-png_set_tRNS_to_alpha(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_tRNS_to_alpha");
-
- if (png_rtran_ok(png_ptr, 0) == 0)
- return;
-
- png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS);
-}
-#endif /* READ_EXPAND */
-
-#ifdef PNG_READ_EXPAND_16_SUPPORTED
-/* Expand to 16-bit channels, expand the tRNS chunk too (because otherwise
- * it may not work correctly.)
- */
-void PNGAPI
-png_set_expand_16(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_expand_16");
-
- if (png_rtran_ok(png_ptr, 0) == 0)
- return;
-
- png_ptr->transformations |= (PNG_EXPAND_16 | PNG_EXPAND | PNG_EXPAND_tRNS);
-}
-#endif
-
-#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
-void PNGAPI
-png_set_gray_to_rgb(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_gray_to_rgb");
-
- if (png_rtran_ok(png_ptr, 0) == 0)
- return;
-
- /* Because rgb must be 8 bits or more: */
- png_set_expand_gray_1_2_4_to_8(png_ptr);
- png_ptr->transformations |= PNG_GRAY_TO_RGB;
-}
-#endif
-
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
-void PNGFAPI
-png_set_rgb_to_gray_fixed(png_structrp png_ptr, int error_action,
- png_fixed_point red, png_fixed_point green)
-{
- png_debug(1, "in png_set_rgb_to_gray");
-
- /* Need the IHDR here because of the check on color_type below. */
- /* TODO: fix this */
- if (png_rtran_ok(png_ptr, 1) == 0)
- return;
-
- switch (error_action)
- {
- case PNG_ERROR_ACTION_NONE:
- png_ptr->transformations |= PNG_RGB_TO_GRAY;
- break;
-
- case PNG_ERROR_ACTION_WARN:
- png_ptr->transformations |= PNG_RGB_TO_GRAY_WARN;
- break;
-
- case PNG_ERROR_ACTION_ERROR:
- png_ptr->transformations |= PNG_RGB_TO_GRAY_ERR;
- break;
-
- default:
- png_error(png_ptr, "invalid error action to rgb_to_gray");
- }
-
- if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
-#ifdef PNG_READ_EXPAND_SUPPORTED
- png_ptr->transformations |= PNG_EXPAND;
-#else
- {
- /* Make this an error in 1.6 because otherwise the application may assume
- * that it just worked and get a memory overwrite.
- */
- png_error(png_ptr,
- "Cannot do RGB_TO_GRAY without EXPAND_SUPPORTED");
-
- /* png_ptr->transformations &= ~PNG_RGB_TO_GRAY; */
- }
-#endif
- {
- if (red >= 0 && green >= 0 && red + green <= PNG_FP_1)
- {
- png_uint_16 red_int, green_int;
-
- /* NOTE: this calculation does not round, but this behavior is retained
- * for consistency; the inaccuracy is very small. The code here always
- * overwrites the coefficients, regardless of whether they have been
- * defaulted or set already.
- */
- red_int = (png_uint_16)(((png_uint_32)red*32768)/100000);
- green_int = (png_uint_16)(((png_uint_32)green*32768)/100000);
-
- png_ptr->rgb_to_gray_red_coeff = red_int;
- png_ptr->rgb_to_gray_green_coeff = green_int;
- png_ptr->rgb_to_gray_coefficients_set = 1;
- }
-
- else
- {
- if (red >= 0 && green >= 0)
- png_app_warning(png_ptr,
- "ignoring out of range rgb_to_gray coefficients");
-
- /* Use the defaults, from the cHRM chunk if set, else the historical
- * values which are close to the sRGB/HDTV/ITU-Rec 709 values. See
- * png_do_rgb_to_gray for more discussion of the values. In this case
- * the coefficients are not marked as 'set' and are not overwritten if
- * something has already provided a default.
- */
- if (png_ptr->rgb_to_gray_red_coeff == 0 &&
- png_ptr->rgb_to_gray_green_coeff == 0)
- {
- png_ptr->rgb_to_gray_red_coeff = 6968;
- png_ptr->rgb_to_gray_green_coeff = 23434;
- /* png_ptr->rgb_to_gray_blue_coeff = 2366; */
- }
- }
- }
-}
-
-#ifdef PNG_FLOATING_POINT_SUPPORTED
-/* Convert a RGB image to a grayscale of the same width. This allows us,
- * for example, to convert a 24 bpp RGB image into an 8 bpp grayscale image.
- */
-
-void PNGAPI
-png_set_rgb_to_gray(png_structrp png_ptr, int error_action, double red,
- double green)
-{
- png_set_rgb_to_gray_fixed(png_ptr, error_action,
- png_fixed(png_ptr, red, "rgb to gray red coefficient"),
- png_fixed(png_ptr, green, "rgb to gray green coefficient"));
-}
-#endif /* FLOATING POINT */
-
-#endif /* RGB_TO_GRAY */
-
-#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
- defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
-void PNGAPI
-png_set_read_user_transform_fn(png_structrp png_ptr, png_user_transform_ptr
- read_user_transform_fn)
-{
- png_debug(1, "in png_set_read_user_transform_fn");
-
-#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
- png_ptr->transformations |= PNG_USER_TRANSFORM;
- png_ptr->read_user_transform_fn = read_user_transform_fn;
-#endif
-}
-#endif
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
-#ifdef PNG_READ_GAMMA_SUPPORTED
-/* In the case of gamma transformations only do transformations on images where
- * the [file] gamma and screen_gamma are not close reciprocals, otherwise it
- * slows things down slightly, and also needlessly introduces small errors.
- */
-static int /* PRIVATE */
-png_gamma_threshold(png_fixed_point screen_gamma, png_fixed_point file_gamma)
-{
- /* PNG_GAMMA_THRESHOLD is the threshold for performing gamma
- * correction as a difference of the overall transform from 1.0
- *
- * We want to compare the threshold with s*f - 1, if we get
- * overflow here it is because of wacky gamma values so we
- * turn on processing anyway.
- */
- png_fixed_point gtest;
- return !png_muldiv(>est, screen_gamma, file_gamma, PNG_FP_1) ||
- png_gamma_significant(gtest);
-}
-#endif
-
-/* Initialize everything needed for the read. This includes modifying
- * the palette.
- */
-
-/* For the moment 'png_init_palette_transformations' and
- * 'png_init_rgb_transformations' only do some flag canceling optimizations.
- * The intent is that these two routines should have palette or rgb operations
- * extracted from 'png_init_read_transformations'.
- */
-static void /* PRIVATE */
-png_init_palette_transformations(png_structrp png_ptr)
-{
- /* Called to handle the (input) palette case. In png_do_read_transformations
- * the first step is to expand the palette if requested, so this code must
- * take care to only make changes that are invariant with respect to the
- * palette expansion, or only do them if there is no expansion.
- *
- * STRIP_ALPHA has already been handled in the caller (by setting num_trans
- * to 0.)
- */
- int input_has_alpha = 0;
- int input_has_transparency = 0;
-
- if (png_ptr->num_trans > 0)
- {
- int i;
-
- /* Ignore if all the entries are opaque (unlikely!) */
- for (i=0; i<png_ptr->num_trans; ++i)
- {
- if (png_ptr->trans_alpha[i] == 255)
- continue;
- else if (png_ptr->trans_alpha[i] == 0)
- input_has_transparency = 1;
- else
- {
- input_has_transparency = 1;
- input_has_alpha = 1;
- break;
- }
- }
- }
-
- /* If no alpha we can optimize. */
- if (input_has_alpha == 0)
- {
- /* Any alpha means background and associative alpha processing is
- * required, however if the alpha is 0 or 1 throughout OPTIMIZE_ALPHA
- * and ENCODE_ALPHA are irrelevant.
- */
- png_ptr->transformations &= ~PNG_ENCODE_ALPHA;
- png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
-
- if (input_has_transparency == 0)
- png_ptr->transformations &= ~(PNG_COMPOSE | PNG_BACKGROUND_EXPAND);
- }
-
-#if defined(PNG_READ_EXPAND_SUPPORTED) && defined(PNG_READ_BACKGROUND_SUPPORTED)
- /* png_set_background handling - deals with the complexity of whether the
- * background color is in the file format or the screen format in the case
- * where an 'expand' will happen.
- */
-
- /* The following code cannot be entered in the alpha pre-multiplication case
- * because PNG_BACKGROUND_EXPAND is cancelled below.
- */
- if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) != 0 &&
- (png_ptr->transformations & PNG_EXPAND) != 0)
- {
- {
- png_ptr->background.red =
- png_ptr->palette[png_ptr->background.index].red;
- png_ptr->background.green =
- png_ptr->palette[png_ptr->background.index].green;
- png_ptr->background.blue =
- png_ptr->palette[png_ptr->background.index].blue;
-
-#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
- if ((png_ptr->transformations & PNG_INVERT_ALPHA) != 0)
- {
- if ((png_ptr->transformations & PNG_EXPAND_tRNS) == 0)
- {
- /* Invert the alpha channel (in tRNS) unless the pixels are
- * going to be expanded, in which case leave it for later
- */
- int i, istop = png_ptr->num_trans;
-
- for (i = 0; i < istop; i++)
- png_ptr->trans_alpha[i] =
- (png_byte)(255 - png_ptr->trans_alpha[i]);
- }
- }
-#endif /* READ_INVERT_ALPHA */
- }
- } /* background expand and (therefore) no alpha association. */
-#endif /* READ_EXPAND && READ_BACKGROUND */
-}
-
-static void /* PRIVATE */
-png_init_rgb_transformations(png_structrp png_ptr)
-{
- /* Added to libpng-1.5.4: check the color type to determine whether there
- * is any alpha or transparency in the image and simply cancel the
- * background and alpha mode stuff if there isn't.
- */
- int input_has_alpha = (png_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0;
- int input_has_transparency = png_ptr->num_trans > 0;
-
- /* If no alpha we can optimize. */
- if (input_has_alpha == 0)
- {
- /* Any alpha means background and associative alpha processing is
- * required, however if the alpha is 0 or 1 throughout OPTIMIZE_ALPHA
- * and ENCODE_ALPHA are irrelevant.
- */
-# ifdef PNG_READ_ALPHA_MODE_SUPPORTED
- png_ptr->transformations &= ~PNG_ENCODE_ALPHA;
- png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
-# endif
-
- if (input_has_transparency == 0)
- png_ptr->transformations &= ~(PNG_COMPOSE | PNG_BACKGROUND_EXPAND);
- }
-
-#if defined(PNG_READ_EXPAND_SUPPORTED) && defined(PNG_READ_BACKGROUND_SUPPORTED)
- /* png_set_background handling - deals with the complexity of whether the
- * background color is in the file format or the screen format in the case
- * where an 'expand' will happen.
- */
-
- /* The following code cannot be entered in the alpha pre-multiplication case
- * because PNG_BACKGROUND_EXPAND is cancelled below.
- */
- if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) != 0 &&
- (png_ptr->transformations & PNG_EXPAND) != 0 &&
- (png_ptr->color_type & PNG_COLOR_MASK_COLOR) == 0)
- /* i.e., GRAY or GRAY_ALPHA */
- {
- {
- /* Expand background and tRNS chunks */
- int gray = png_ptr->background.gray;
- int trans_gray = png_ptr->trans_color.gray;
-
- switch (png_ptr->bit_depth)
- {
- case 1:
- gray *= 0xff;
- trans_gray *= 0xff;
- break;
-
- case 2:
- gray *= 0x55;
- trans_gray *= 0x55;
- break;
-
- case 4:
- gray *= 0x11;
- trans_gray *= 0x11;
- break;
-
- default:
-
- case 8:
- /* FALLTHROUGH */ /* (Already 8 bits) */
-
- case 16:
- /* Already a full 16 bits */
- break;
- }
-
- png_ptr->background.red = png_ptr->background.green =
- png_ptr->background.blue = (png_uint_16)gray;
-
- if ((png_ptr->transformations & PNG_EXPAND_tRNS) == 0)
- {
- png_ptr->trans_color.red = png_ptr->trans_color.green =
- png_ptr->trans_color.blue = (png_uint_16)trans_gray;
- }
- }
- } /* background expand and (therefore) no alpha association. */
-#endif /* READ_EXPAND && READ_BACKGROUND */
-}
-
-void /* PRIVATE */
-png_init_read_transformations(png_structrp png_ptr)
-{
- png_debug(1, "in png_init_read_transformations");
-
- /* This internal function is called from png_read_start_row in pngrutil.c
- * and it is called before the 'rowbytes' calculation is done, so the code
- * in here can change or update the transformations flags.
- *
- * First do updates that do not depend on the details of the PNG image data
- * being processed.
- */
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
- /* Prior to 1.5.4 these tests were performed from png_set_gamma, 1.5.4 adds
- * png_set_alpha_mode and this is another source for a default file gamma so
- * the test needs to be performed later - here. In addition prior to 1.5.4
- * the tests were repeated for the PALETTE color type here - this is no
- * longer necessary (and doesn't seem to have been necessary before.)
- */
- {
- /* The following temporary indicates if overall gamma correction is
- * required.
- */
- int gamma_correction = 0;
-
- if (png_ptr->colorspace.gamma != 0) /* has been set */
- {
- if (png_ptr->screen_gamma != 0) /* screen set too */
- gamma_correction = png_gamma_threshold(png_ptr->colorspace.gamma,
- png_ptr->screen_gamma);
-
- else
- /* Assume the output matches the input; a long time default behavior
- * of libpng, although the standard has nothing to say about this.
- */
- png_ptr->screen_gamma = png_reciprocal(png_ptr->colorspace.gamma);
- }
-
- else if (png_ptr->screen_gamma != 0)
- /* The converse - assume the file matches the screen, note that this
- * perhaps undesirable default can (from 1.5.4) be changed by calling
- * png_set_alpha_mode (even if the alpha handling mode isn't required
- * or isn't changed from the default.)
- */
- png_ptr->colorspace.gamma = png_reciprocal(png_ptr->screen_gamma);
-
- else /* neither are set */
- /* Just in case the following prevents any processing - file and screen
- * are both assumed to be linear and there is no way to introduce a
- * third gamma value other than png_set_background with 'UNIQUE', and,
- * prior to 1.5.4
- */
- png_ptr->screen_gamma = png_ptr->colorspace.gamma = PNG_FP_1;
-
- /* We have a gamma value now. */
- png_ptr->colorspace.flags |= PNG_COLORSPACE_HAVE_GAMMA;
-
- /* Now turn the gamma transformation on or off as appropriate. Notice
- * that PNG_GAMMA just refers to the file->screen correction. Alpha
- * composition may independently cause gamma correction because it needs
- * linear data (e.g. if the file has a gAMA chunk but the screen gamma
- * hasn't been specified.) In any case this flag may get turned off in
- * the code immediately below if the transform can be handled outside the
- * row loop.
- */
- if (gamma_correction != 0)
- png_ptr->transformations |= PNG_GAMMA;
-
- else
- png_ptr->transformations &= ~PNG_GAMMA;
- }
-#endif
-
- /* Certain transformations have the effect of preventing other
- * transformations that happen afterward in png_do_read_transformations;
- * resolve the interdependencies here. From the code of
- * png_do_read_transformations the order is:
- *
- * 1) PNG_EXPAND (including PNG_EXPAND_tRNS)
- * 2) PNG_STRIP_ALPHA (if no compose)
- * 3) PNG_RGB_TO_GRAY
- * 4) PNG_GRAY_TO_RGB iff !PNG_BACKGROUND_IS_GRAY
- * 5) PNG_COMPOSE
- * 6) PNG_GAMMA
- * 7) PNG_STRIP_ALPHA (if compose)
- * 8) PNG_ENCODE_ALPHA
- * 9) PNG_SCALE_16_TO_8
- * 10) PNG_16_TO_8
- * 11) PNG_QUANTIZE (converts to palette)
- * 12) PNG_EXPAND_16
- * 13) PNG_GRAY_TO_RGB iff PNG_BACKGROUND_IS_GRAY
- * 14) PNG_INVERT_MONO
- * 15) PNG_INVERT_ALPHA
- * 16) PNG_SHIFT
- * 17) PNG_PACK
- * 18) PNG_BGR
- * 19) PNG_PACKSWAP
- * 20) PNG_FILLER (includes PNG_ADD_ALPHA)
- * 21) PNG_SWAP_ALPHA
- * 22) PNG_SWAP_BYTES
- * 23) PNG_USER_TRANSFORM [must be last]
- */
-#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
- if ((png_ptr->transformations & PNG_STRIP_ALPHA) != 0 &&
- (png_ptr->transformations & PNG_COMPOSE) == 0)
- {
- /* Stripping the alpha channel happens immediately after the 'expand'
- * transformations, before all other transformation, so it cancels out
- * the alpha handling. It has the side effect negating the effect of
- * PNG_EXPAND_tRNS too:
- */
- png_ptr->transformations &= ~(PNG_BACKGROUND_EXPAND | PNG_ENCODE_ALPHA |
- PNG_EXPAND_tRNS);
- png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
-
- /* Kill the tRNS chunk itself too. Prior to 1.5.4 this did not happen
- * so transparency information would remain just so long as it wasn't
- * expanded. This produces unexpected API changes if the set of things
- * that do PNG_EXPAND_tRNS changes (perfectly possible given the
- * documentation - which says ask for what you want, accept what you
- * get.) This makes the behavior consistent from 1.5.4:
- */
- png_ptr->num_trans = 0;
- }
-#endif /* STRIP_ALPHA supported, no COMPOSE */
-
-#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
- /* If the screen gamma is about 1.0 then the OPTIMIZE_ALPHA and ENCODE_ALPHA
- * settings will have no effect.
- */
- if (png_gamma_significant(png_ptr->screen_gamma) == 0)
- {
- png_ptr->transformations &= ~PNG_ENCODE_ALPHA;
- png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
- }
-#endif
-
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
- /* Make sure the coefficients for the rgb to gray conversion are set
- * appropriately.
- */
- if ((png_ptr->transformations & PNG_RGB_TO_GRAY) != 0)
- png_colorspace_set_rgb_coefficients(png_ptr);
-#endif
-
-#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
-#if defined(PNG_READ_EXPAND_SUPPORTED) && defined(PNG_READ_BACKGROUND_SUPPORTED)
- /* Detect gray background and attempt to enable optimization for
- * gray --> RGB case.
- *
- * Note: if PNG_BACKGROUND_EXPAND is set and color_type is either RGB or
- * RGB_ALPHA (in which case need_expand is superfluous anyway), the
- * background color might actually be gray yet not be flagged as such.
- * This is not a problem for the current code, which uses
- * PNG_BACKGROUND_IS_GRAY only to decide when to do the
- * png_do_gray_to_rgb() transformation.
- *
- * TODO: this code needs to be revised to avoid the complexity and
- * interdependencies. The color type of the background should be recorded in
- * png_set_background, along with the bit depth, then the code has a record
- * of exactly what color space the background is currently in.
- */
- if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) != 0)
- {
- /* PNG_BACKGROUND_EXPAND: the background is in the file color space, so if
- * the file was grayscale the background value is gray.
- */
- if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) == 0)
- png_ptr->mode |= PNG_BACKGROUND_IS_GRAY;
- }
-
- else if ((png_ptr->transformations & PNG_COMPOSE) != 0)
- {
- /* PNG_COMPOSE: png_set_background was called with need_expand false,
- * so the color is in the color space of the output or png_set_alpha_mode
- * was called and the color is black. Ignore RGB_TO_GRAY because that
- * happens before GRAY_TO_RGB.
- */
- if ((png_ptr->transformations & PNG_GRAY_TO_RGB) != 0)
- {
- if (png_ptr->background.red == png_ptr->background.green &&
- png_ptr->background.red == png_ptr->background.blue)
- {
- png_ptr->mode |= PNG_BACKGROUND_IS_GRAY;
- png_ptr->background.gray = png_ptr->background.red;
- }
- }
- }
-#endif /* READ_EXPAND && READ_BACKGROUND */
-#endif /* READ_GRAY_TO_RGB */
-
- /* For indexed PNG data (PNG_COLOR_TYPE_PALETTE) many of the transformations
- * can be performed directly on the palette, and some (such as rgb to gray)
- * can be optimized inside the palette. This is particularly true of the
- * composite (background and alpha) stuff, which can be pretty much all done
- * in the palette even if the result is expanded to RGB or gray afterward.
- *
- * NOTE: this is Not Yet Implemented, the code behaves as in 1.5.1 and
- * earlier and the palette stuff is actually handled on the first row. This
- * leads to the reported bug that the palette returned by png_get_PLTE is not
- * updated.
- */
- if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- png_init_palette_transformations(png_ptr);
-
- else
- png_init_rgb_transformations(png_ptr);
-
-#if defined(PNG_READ_BACKGROUND_SUPPORTED) && \
- defined(PNG_READ_EXPAND_16_SUPPORTED)
- if ((png_ptr->transformations & PNG_EXPAND_16) != 0 &&
- (png_ptr->transformations & PNG_COMPOSE) != 0 &&
- (png_ptr->transformations & PNG_BACKGROUND_EXPAND) == 0 &&
- png_ptr->bit_depth != 16)
- {
- /* TODO: fix this. Because the expand_16 operation is after the compose
- * handling the background color must be 8, not 16, bits deep, but the
- * application will supply a 16-bit value so reduce it here.
- *
- * The PNG_BACKGROUND_EXPAND code above does not expand to 16 bits at
- * present, so that case is ok (until do_expand_16 is moved.)
- *
- * NOTE: this discards the low 16 bits of the user supplied background
- * color, but until expand_16 works properly there is no choice!
- */
-# define CHOP(x) (x)=((png_uint_16)PNG_DIV257(x))
- CHOP(png_ptr->background.red);
- CHOP(png_ptr->background.green);
- CHOP(png_ptr->background.blue);
- CHOP(png_ptr->background.gray);
-# undef CHOP
- }
-#endif /* READ_BACKGROUND && READ_EXPAND_16 */
-
-#if defined(PNG_READ_BACKGROUND_SUPPORTED) && \
- (defined(PNG_READ_SCALE_16_TO_8_SUPPORTED) || \
- defined(PNG_READ_STRIP_16_TO_8_SUPPORTED))
- if ((png_ptr->transformations & (PNG_16_TO_8|PNG_SCALE_16_TO_8)) != 0 &&
- (png_ptr->transformations & PNG_COMPOSE) != 0 &&
- (png_ptr->transformations & PNG_BACKGROUND_EXPAND) == 0 &&
- png_ptr->bit_depth == 16)
- {
- /* On the other hand, if a 16-bit file is to be reduced to 8-bits per
- * component this will also happen after PNG_COMPOSE and so the background
- * color must be pre-expanded here.
- *
- * TODO: fix this too.
- */
- png_ptr->background.red = (png_uint_16)(png_ptr->background.red * 257);
- png_ptr->background.green =
- (png_uint_16)(png_ptr->background.green * 257);
- png_ptr->background.blue = (png_uint_16)(png_ptr->background.blue * 257);
- png_ptr->background.gray = (png_uint_16)(png_ptr->background.gray * 257);
- }
-#endif
-
- /* NOTE: below 'PNG_READ_ALPHA_MODE_SUPPORTED' is presumed to also enable the
- * background support (see the comments in scripts/pnglibconf.dfa), this
- * allows pre-multiplication of the alpha channel to be implemented as
- * compositing on black. This is probably sub-optimal and has been done in
- * 1.5.4 betas simply to enable external critique and testing (i.e. to
- * implement the new API quickly, without lots of internal changes.)
- */
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
-# ifdef PNG_READ_BACKGROUND_SUPPORTED
- /* Includes ALPHA_MODE */
- png_ptr->background_1 = png_ptr->background;
-# endif
-
- /* This needs to change - in the palette image case a whole set of tables are
- * built when it would be quicker to just calculate the correct value for
- * each palette entry directly. Also, the test is too tricky - why check
- * PNG_RGB_TO_GRAY if PNG_GAMMA is not set? The answer seems to be that
- * PNG_GAMMA is cancelled even if the gamma is known? The test excludes the
- * PNG_COMPOSE case, so apparently if there is no *overall* gamma correction
- * the gamma tables will not be built even if composition is required on a
- * gamma encoded value.
- *
- * In 1.5.4 this is addressed below by an additional check on the individual
- * file gamma - if it is not 1.0 both RGB_TO_GRAY and COMPOSE need the
- * tables.
- */
- if ((png_ptr->transformations & PNG_GAMMA) != 0 ||
- ((png_ptr->transformations & PNG_RGB_TO_GRAY) != 0 &&
- (png_gamma_significant(png_ptr->colorspace.gamma) != 0 ||
- png_gamma_significant(png_ptr->screen_gamma) != 0)) ||
- ((png_ptr->transformations & PNG_COMPOSE) != 0 &&
- (png_gamma_significant(png_ptr->colorspace.gamma) != 0 ||
- png_gamma_significant(png_ptr->screen_gamma) != 0
-# ifdef PNG_READ_BACKGROUND_SUPPORTED
- || (png_ptr->background_gamma_type == PNG_BACKGROUND_GAMMA_UNIQUE &&
- png_gamma_significant(png_ptr->background_gamma) != 0)
-# endif
- )) || ((png_ptr->transformations & PNG_ENCODE_ALPHA) != 0 &&
- png_gamma_significant(png_ptr->screen_gamma) != 0))
- {
- png_build_gamma_table(png_ptr, png_ptr->bit_depth);
-
-#ifdef PNG_READ_BACKGROUND_SUPPORTED
- if ((png_ptr->transformations & PNG_COMPOSE) != 0)
- {
- /* Issue a warning about this combination: because RGB_TO_GRAY is
- * optimized to do the gamma transform if present yet do_background has
- * to do the same thing if both options are set a
- * double-gamma-correction happens. This is true in all versions of
- * libpng to date.
- */
- if ((png_ptr->transformations & PNG_RGB_TO_GRAY) != 0)
- png_warning(png_ptr,
- "libpng does not support gamma+background+rgb_to_gray");
-
- if ((png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) != 0)
- {
- /* We don't get to here unless there is a tRNS chunk with non-opaque
- * entries - see the checking code at the start of this function.
- */
- png_color back, back_1;
- png_colorp palette = png_ptr->palette;
- int num_palette = png_ptr->num_palette;
- int i;
- if (png_ptr->background_gamma_type == PNG_BACKGROUND_GAMMA_FILE)
- {
-
- back.red = png_ptr->gamma_table[png_ptr->background.red];
- back.green = png_ptr->gamma_table[png_ptr->background.green];
- back.blue = png_ptr->gamma_table[png_ptr->background.blue];
-
- back_1.red = png_ptr->gamma_to_1[png_ptr->background.red];
- back_1.green = png_ptr->gamma_to_1[png_ptr->background.green];
- back_1.blue = png_ptr->gamma_to_1[png_ptr->background.blue];
- }
- else
- {
- png_fixed_point g, gs;
-
- switch (png_ptr->background_gamma_type)
- {
- case PNG_BACKGROUND_GAMMA_SCREEN:
- g = (png_ptr->screen_gamma);
- gs = PNG_FP_1;
- break;
-
- case PNG_BACKGROUND_GAMMA_FILE:
- g = png_reciprocal(png_ptr->colorspace.gamma);
- gs = png_reciprocal2(png_ptr->colorspace.gamma,
- png_ptr->screen_gamma);
- break;
-
- case PNG_BACKGROUND_GAMMA_UNIQUE:
- g = png_reciprocal(png_ptr->background_gamma);
- gs = png_reciprocal2(png_ptr->background_gamma,
- png_ptr->screen_gamma);
- break;
- default:
- g = PNG_FP_1; /* back_1 */
- gs = PNG_FP_1; /* back */
- break;
- }
-
- if (png_gamma_significant(gs) != 0)
- {
- back.red = png_gamma_8bit_correct(png_ptr->background.red,
- gs);
- back.green = png_gamma_8bit_correct(png_ptr->background.green,
- gs);
- back.blue = png_gamma_8bit_correct(png_ptr->background.blue,
- gs);
- }
-
- else
- {
- back.red = (png_byte)png_ptr->background.red;
- back.green = (png_byte)png_ptr->background.green;
- back.blue = (png_byte)png_ptr->background.blue;
- }
-
- if (png_gamma_significant(g) != 0)
- {
- back_1.red = png_gamma_8bit_correct(png_ptr->background.red,
- g);
- back_1.green = png_gamma_8bit_correct(
- png_ptr->background.green, g);
- back_1.blue = png_gamma_8bit_correct(png_ptr->background.blue,
- g);
- }
-
- else
- {
- back_1.red = (png_byte)png_ptr->background.red;
- back_1.green = (png_byte)png_ptr->background.green;
- back_1.blue = (png_byte)png_ptr->background.blue;
- }
- }
-
- for (i = 0; i < num_palette; i++)
- {
- if (i < (int)png_ptr->num_trans &&
- png_ptr->trans_alpha[i] != 0xff)
- {
- if (png_ptr->trans_alpha[i] == 0)
- {
- palette[i] = back;
- }
- else /* if (png_ptr->trans_alpha[i] != 0xff) */
- {
- png_byte v, w;
-
- v = png_ptr->gamma_to_1[palette[i].red];
- png_composite(w, v, png_ptr->trans_alpha[i], back_1.red);
- palette[i].red = png_ptr->gamma_from_1[w];
-
- v = png_ptr->gamma_to_1[palette[i].green];
- png_composite(w, v, png_ptr->trans_alpha[i], back_1.green);
- palette[i].green = png_ptr->gamma_from_1[w];
-
- v = png_ptr->gamma_to_1[palette[i].blue];
- png_composite(w, v, png_ptr->trans_alpha[i], back_1.blue);
- palette[i].blue = png_ptr->gamma_from_1[w];
- }
- }
- else
- {
- palette[i].red = png_ptr->gamma_table[palette[i].red];
- palette[i].green = png_ptr->gamma_table[palette[i].green];
- palette[i].blue = png_ptr->gamma_table[palette[i].blue];
- }
- }
-
- /* Prevent the transformations being done again.
- *
- * NOTE: this is highly dubious; it removes the transformations in
- * place. This seems inconsistent with the general treatment of the
- * transformations elsewhere.
- */
- png_ptr->transformations &= ~(PNG_COMPOSE | PNG_GAMMA);
- } /* color_type == PNG_COLOR_TYPE_PALETTE */
-
- /* if (png_ptr->background_gamma_type!=PNG_BACKGROUND_GAMMA_UNKNOWN) */
- else /* color_type != PNG_COLOR_TYPE_PALETTE */
- {
- int gs_sig, g_sig;
- png_fixed_point g = PNG_FP_1; /* Correction to linear */
- png_fixed_point gs = PNG_FP_1; /* Correction to screen */
-
- switch (png_ptr->background_gamma_type)
- {
- case PNG_BACKGROUND_GAMMA_SCREEN:
- g = png_ptr->screen_gamma;
- /* gs = PNG_FP_1; */
- break;
-
- case PNG_BACKGROUND_GAMMA_FILE:
- g = png_reciprocal(png_ptr->colorspace.gamma);
- gs = png_reciprocal2(png_ptr->colorspace.gamma,
- png_ptr->screen_gamma);
- break;
-
- case PNG_BACKGROUND_GAMMA_UNIQUE:
- g = png_reciprocal(png_ptr->background_gamma);
- gs = png_reciprocal2(png_ptr->background_gamma,
- png_ptr->screen_gamma);
- break;
-
- default:
- png_error(png_ptr, "invalid background gamma type");
- }
-
- g_sig = png_gamma_significant(g);
- gs_sig = png_gamma_significant(gs);
-
- if (g_sig != 0)
- png_ptr->background_1.gray = png_gamma_correct(png_ptr,
- png_ptr->background.gray, g);
-
- if (gs_sig != 0)
- png_ptr->background.gray = png_gamma_correct(png_ptr,
- png_ptr->background.gray, gs);
-
- if ((png_ptr->background.red != png_ptr->background.green) ||
- (png_ptr->background.red != png_ptr->background.blue) ||
- (png_ptr->background.red != png_ptr->background.gray))
- {
- /* RGB or RGBA with color background */
- if (g_sig != 0)
- {
- png_ptr->background_1.red = png_gamma_correct(png_ptr,
- png_ptr->background.red, g);
-
- png_ptr->background_1.green = png_gamma_correct(png_ptr,
- png_ptr->background.green, g);
-
- png_ptr->background_1.blue = png_gamma_correct(png_ptr,
- png_ptr->background.blue, g);
- }
-
- if (gs_sig != 0)
- {
- png_ptr->background.red = png_gamma_correct(png_ptr,
- png_ptr->background.red, gs);
-
- png_ptr->background.green = png_gamma_correct(png_ptr,
- png_ptr->background.green, gs);
-
- png_ptr->background.blue = png_gamma_correct(png_ptr,
- png_ptr->background.blue, gs);
- }
- }
-
- else
- {
- /* GRAY, GRAY ALPHA, RGB, or RGBA with gray background */
- png_ptr->background_1.red = png_ptr->background_1.green
- = png_ptr->background_1.blue = png_ptr->background_1.gray;
-
- png_ptr->background.red = png_ptr->background.green
- = png_ptr->background.blue = png_ptr->background.gray;
- }
-
- /* The background is now in screen gamma: */
- png_ptr->background_gamma_type = PNG_BACKGROUND_GAMMA_SCREEN;
- } /* color_type != PNG_COLOR_TYPE_PALETTE */
- }/* png_ptr->transformations & PNG_BACKGROUND */
-
- else
- /* Transformation does not include PNG_BACKGROUND */
-#endif /* READ_BACKGROUND */
- if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
- /* RGB_TO_GRAY needs to have non-gamma-corrected values! */
- && ((png_ptr->transformations & PNG_EXPAND) == 0 ||
- (png_ptr->transformations & PNG_RGB_TO_GRAY) == 0)
-#endif
- )
- {
- png_colorp palette = png_ptr->palette;
- int num_palette = png_ptr->num_palette;
- int i;
-
- /* NOTE: there are other transformations that should probably be in
- * here too.
- */
- for (i = 0; i < num_palette; i++)
- {
- palette[i].red = png_ptr->gamma_table[palette[i].red];
- palette[i].green = png_ptr->gamma_table[palette[i].green];
- palette[i].blue = png_ptr->gamma_table[palette[i].blue];
- }
-
- /* Done the gamma correction. */
- png_ptr->transformations &= ~PNG_GAMMA;
- } /* color_type == PALETTE && !PNG_BACKGROUND transformation */
- }
-#ifdef PNG_READ_BACKGROUND_SUPPORTED
- else
-#endif
-#endif /* READ_GAMMA */
-
-#ifdef PNG_READ_BACKGROUND_SUPPORTED
- /* No GAMMA transformation (see the hanging else 4 lines above) */
- if ((png_ptr->transformations & PNG_COMPOSE) != 0 &&
- (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE))
- {
- int i;
- int istop = (int)png_ptr->num_trans;
- png_color back;
- png_colorp palette = png_ptr->palette;
-
- back.red = (png_byte)png_ptr->background.red;
- back.green = (png_byte)png_ptr->background.green;
- back.blue = (png_byte)png_ptr->background.blue;
-
- for (i = 0; i < istop; i++)
- {
- if (png_ptr->trans_alpha[i] == 0)
- {
- palette[i] = back;
- }
-
- else if (png_ptr->trans_alpha[i] != 0xff)
- {
- /* The png_composite() macro is defined in png.h */
- png_composite(palette[i].red, palette[i].red,
- png_ptr->trans_alpha[i], back.red);
-
- png_composite(palette[i].green, palette[i].green,
- png_ptr->trans_alpha[i], back.green);
-
- png_composite(palette[i].blue, palette[i].blue,
- png_ptr->trans_alpha[i], back.blue);
- }
- }
-
- png_ptr->transformations &= ~PNG_COMPOSE;
- }
-#endif /* READ_BACKGROUND */
-
-#ifdef PNG_READ_SHIFT_SUPPORTED
- if ((png_ptr->transformations & PNG_SHIFT) != 0 &&
- (png_ptr->transformations & PNG_EXPAND) == 0 &&
- (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE))
- {
- int i;
- int istop = png_ptr->num_palette;
- int shift = 8 - png_ptr->sig_bit.red;
-
- png_ptr->transformations &= ~PNG_SHIFT;
-
- /* significant bits can be in the range 1 to 7 for a meaningful result, if
- * the number of significant bits is 0 then no shift is done (this is an
- * error condition which is silently ignored.)
- */
- if (shift > 0 && shift < 8)
- for (i=0; i<istop; ++i)
- {
- int component = png_ptr->palette[i].red;
-
- component >>= shift;
- png_ptr->palette[i].red = (png_byte)component;
- }
-
- shift = 8 - png_ptr->sig_bit.green;
- if (shift > 0 && shift < 8)
- for (i=0; i<istop; ++i)
- {
- int component = png_ptr->palette[i].green;
-
- component >>= shift;
- png_ptr->palette[i].green = (png_byte)component;
- }
-
- shift = 8 - png_ptr->sig_bit.blue;
- if (shift > 0 && shift < 8)
- for (i=0; i<istop; ++i)
- {
- int component = png_ptr->palette[i].blue;
-
- component >>= shift;
- png_ptr->palette[i].blue = (png_byte)component;
- }
- }
-#endif /* READ_SHIFT */
-}
-
-/* Modify the info structure to reflect the transformations. The
- * info should be updated so a PNG file could be written with it,
- * assuming the transformations result in valid PNG data.
- */
-void /* PRIVATE */
-png_read_transform_info(png_structrp png_ptr, png_inforp info_ptr)
-{
- png_debug(1, "in png_read_transform_info");
-
-#ifdef PNG_READ_EXPAND_SUPPORTED
- if ((png_ptr->transformations & PNG_EXPAND) != 0)
- {
- if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- {
- /* This check must match what actually happens in
- * png_do_expand_palette; if it ever checks the tRNS chunk to see if
- * it is all opaque we must do the same (at present it does not.)
- */
- if (png_ptr->num_trans > 0)
- info_ptr->color_type = PNG_COLOR_TYPE_RGB_ALPHA;
-
- else
- info_ptr->color_type = PNG_COLOR_TYPE_RGB;
-
- info_ptr->bit_depth = 8;
- info_ptr->num_trans = 0;
-
- if (png_ptr->palette == NULL)
- png_error (png_ptr, "Palette is NULL in indexed image");
- }
- else
- {
- if (png_ptr->num_trans != 0)
- {
- if ((png_ptr->transformations & PNG_EXPAND_tRNS) != 0)
- info_ptr->color_type |= PNG_COLOR_MASK_ALPHA;
- }
- if (info_ptr->bit_depth < 8)
- info_ptr->bit_depth = 8;
-
- info_ptr->num_trans = 0;
- }
- }
-#endif
-
-#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
- defined(PNG_READ_ALPHA_MODE_SUPPORTED)
- /* The following is almost certainly wrong unless the background value is in
- * the screen space!
- */
- if ((png_ptr->transformations & PNG_COMPOSE) != 0)
- info_ptr->background = png_ptr->background;
-#endif
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
- /* The following used to be conditional on PNG_GAMMA (prior to 1.5.4),
- * however it seems that the code in png_init_read_transformations, which has
- * been called before this from png_read_update_info->png_read_start_row
- * sometimes does the gamma transform and cancels the flag.
- *
- * TODO: this looks wrong; the info_ptr should end up with a gamma equal to
- * the screen_gamma value. The following probably results in weirdness if
- * the info_ptr is used by the app after the rows have been read.
- */
- info_ptr->colorspace.gamma = png_ptr->colorspace.gamma;
-#endif
-
- if (info_ptr->bit_depth == 16)
- {
-# ifdef PNG_READ_16BIT_SUPPORTED
-# ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
- if ((png_ptr->transformations & PNG_SCALE_16_TO_8) != 0)
- info_ptr->bit_depth = 8;
-# endif
-
-# ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
- if ((png_ptr->transformations & PNG_16_TO_8) != 0)
- info_ptr->bit_depth = 8;
-# endif
-
-# else
- /* No 16-bit support: force chopping 16-bit input down to 8, in this case
- * the app program can chose if both APIs are available by setting the
- * correct scaling to use.
- */
-# ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
- /* For compatibility with previous versions use the strip method by
- * default. This code works because if PNG_SCALE_16_TO_8 is already
- * set the code below will do that in preference to the chop.
- */
- png_ptr->transformations |= PNG_16_TO_8;
- info_ptr->bit_depth = 8;
-# else
-
-# ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
- png_ptr->transformations |= PNG_SCALE_16_TO_8;
- info_ptr->bit_depth = 8;
-# else
-
- CONFIGURATION ERROR: you must enable at least one 16 to 8 method
-# endif
-# endif
-#endif /* !READ_16BIT */
- }
-
-#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
- if ((png_ptr->transformations & PNG_GRAY_TO_RGB) != 0)
- info_ptr->color_type = (png_byte)(info_ptr->color_type |
- PNG_COLOR_MASK_COLOR);
-#endif
-
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
- if ((png_ptr->transformations & PNG_RGB_TO_GRAY) != 0)
- info_ptr->color_type = (png_byte)(info_ptr->color_type &
- ~PNG_COLOR_MASK_COLOR);
-#endif
-
-#ifdef PNG_READ_QUANTIZE_SUPPORTED
- if ((png_ptr->transformations & PNG_QUANTIZE) != 0)
- {
- if (((info_ptr->color_type == PNG_COLOR_TYPE_RGB) ||
- (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)) &&
- png_ptr->palette_lookup != 0 && info_ptr->bit_depth == 8)
- {
- info_ptr->color_type = PNG_COLOR_TYPE_PALETTE;
- }
- }
-#endif
-
-#ifdef PNG_READ_EXPAND_16_SUPPORTED
- if ((png_ptr->transformations & PNG_EXPAND_16) != 0 &&
- info_ptr->bit_depth == 8 &&
- info_ptr->color_type != PNG_COLOR_TYPE_PALETTE)
- {
- info_ptr->bit_depth = 16;
- }
-#endif
-
-#ifdef PNG_READ_PACK_SUPPORTED
- if ((png_ptr->transformations & PNG_PACK) != 0 &&
- (info_ptr->bit_depth < 8))
- info_ptr->bit_depth = 8;
-#endif
-
- if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- info_ptr->channels = 1;
-
- else if ((info_ptr->color_type & PNG_COLOR_MASK_COLOR) != 0)
- info_ptr->channels = 3;
-
- else
- info_ptr->channels = 1;
-
-#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
- if ((png_ptr->transformations & PNG_STRIP_ALPHA) != 0)
- {
- info_ptr->color_type = (png_byte)(info_ptr->color_type &
- ~PNG_COLOR_MASK_ALPHA);
- info_ptr->num_trans = 0;
- }
-#endif
-
- if ((info_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0)
- info_ptr->channels++;
-
-#ifdef PNG_READ_FILLER_SUPPORTED
- /* STRIP_ALPHA and FILLER allowed: MASK_ALPHA bit stripped above */
- if ((png_ptr->transformations & PNG_FILLER) != 0 &&
- (info_ptr->color_type == PNG_COLOR_TYPE_RGB ||
- info_ptr->color_type == PNG_COLOR_TYPE_GRAY))
- {
- info_ptr->channels++;
- /* If adding a true alpha channel not just filler */
- if ((png_ptr->transformations & PNG_ADD_ALPHA) != 0)
- info_ptr->color_type |= PNG_COLOR_MASK_ALPHA;
- }
-#endif
-
-#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) && \
-defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
- if ((png_ptr->transformations & PNG_USER_TRANSFORM) != 0)
- {
- if (png_ptr->user_transform_depth != 0)
- info_ptr->bit_depth = png_ptr->user_transform_depth;
-
- if (png_ptr->user_transform_channels != 0)
- info_ptr->channels = png_ptr->user_transform_channels;
- }
-#endif
-
- info_ptr->pixel_depth = (png_byte)(info_ptr->channels *
- info_ptr->bit_depth);
-
- info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, info_ptr->width);
-
- /* Adding in 1.5.4: cache the above value in png_struct so that we can later
- * check in png_rowbytes that the user buffer won't get overwritten. Note
- * that the field is not always set - if png_read_update_info isn't called
- * the application has to either not do any transforms or get the calculation
- * right itself.
- */
- png_ptr->info_rowbytes = info_ptr->rowbytes;
-
-#ifndef PNG_READ_EXPAND_SUPPORTED
- if (png_ptr != NULL)
- return;
-#endif
-}
-
-#ifdef PNG_READ_PACK_SUPPORTED
-/* Unpack pixels of 1, 2, or 4 bits per pixel into 1 byte per pixel,
- * without changing the actual values. Thus, if you had a row with
- * a bit depth of 1, you would end up with bytes that only contained
- * the numbers 0 or 1. If you would rather they contain 0 and 255, use
- * png_do_shift() after this.
- */
-static void
-png_do_unpack(png_row_infop row_info, png_bytep row)
-{
- png_debug(1, "in png_do_unpack");
-
- if (row_info->bit_depth < 8)
- {
- png_uint_32 i;
- png_uint_32 row_width=row_info->width;
-
- switch (row_info->bit_depth)
- {
- case 1:
- {
- png_bytep sp = row + (size_t)((row_width - 1) >> 3);
- png_bytep dp = row + (size_t)row_width - 1;
- png_uint_32 shift = 7U - ((row_width + 7U) & 0x07);
- for (i = 0; i < row_width; i++)
- {
- *dp = (png_byte)((*sp >> shift) & 0x01);
-
- if (shift == 7)
- {
- shift = 0;
- sp--;
- }
-
- else
- shift++;
-
- dp--;
- }
- break;
- }
-
- case 2:
- {
-
- png_bytep sp = row + (size_t)((row_width - 1) >> 2);
- png_bytep dp = row + (size_t)row_width - 1;
- png_uint_32 shift = ((3U - ((row_width + 3U) & 0x03)) << 1);
- for (i = 0; i < row_width; i++)
- {
- *dp = (png_byte)((*sp >> shift) & 0x03);
-
- if (shift == 6)
- {
- shift = 0;
- sp--;
- }
-
- else
- shift += 2;
-
- dp--;
- }
- break;
- }
-
- case 4:
- {
- png_bytep sp = row + (size_t)((row_width - 1) >> 1);
- png_bytep dp = row + (size_t)row_width - 1;
- png_uint_32 shift = ((1U - ((row_width + 1U) & 0x01)) << 2);
- for (i = 0; i < row_width; i++)
- {
- *dp = (png_byte)((*sp >> shift) & 0x0f);
-
- if (shift == 4)
- {
- shift = 0;
- sp--;
- }
-
- else
- shift = 4;
-
- dp--;
- }
- break;
- }
-
- default:
- break;
- }
- row_info->bit_depth = 8;
- row_info->pixel_depth = (png_byte)(8 * row_info->channels);
- row_info->rowbytes = row_width * row_info->channels;
- }
-}
-#endif
-
-#ifdef PNG_READ_SHIFT_SUPPORTED
-/* Reverse the effects of png_do_shift. This routine merely shifts the
- * pixels back to their significant bits values. Thus, if you have
- * a row of bit depth 8, but only 5 are significant, this will shift
- * the values back to 0 through 31.
- */
-static void
-png_do_unshift(png_row_infop row_info, png_bytep row,
- png_const_color_8p sig_bits)
-{
- int color_type;
-
- png_debug(1, "in png_do_unshift");
-
- /* The palette case has already been handled in the _init routine. */
- color_type = row_info->color_type;
-
- if (color_type != PNG_COLOR_TYPE_PALETTE)
- {
- int shift[4];
- int channels = 0;
- int bit_depth = row_info->bit_depth;
-
- if ((color_type & PNG_COLOR_MASK_COLOR) != 0)
- {
- shift[channels++] = bit_depth - sig_bits->red;
- shift[channels++] = bit_depth - sig_bits->green;
- shift[channels++] = bit_depth - sig_bits->blue;
- }
-
- else
- {
- shift[channels++] = bit_depth - sig_bits->gray;
- }
-
- if ((color_type & PNG_COLOR_MASK_ALPHA) != 0)
- {
- shift[channels++] = bit_depth - sig_bits->alpha;
- }
-
- {
- int c, have_shift;
-
- for (c = have_shift = 0; c < channels; ++c)
- {
- /* A shift of more than the bit depth is an error condition but it
- * gets ignored here.
- */
- if (shift[c] <= 0 || shift[c] >= bit_depth)
- shift[c] = 0;
-
- else
- have_shift = 1;
- }
-
- if (have_shift == 0)
- return;
- }
-
- switch (bit_depth)
- {
- default:
- /* Must be 1bpp gray: should not be here! */
- /* NOTREACHED */
- break;
-
- case 2:
- /* Must be 2bpp gray */
- /* assert(channels == 1 && shift[0] == 1) */
- {
- png_bytep bp = row;
- png_bytep bp_end = bp + row_info->rowbytes;
-
- while (bp < bp_end)
- {
- int b = (*bp >> 1) & 0x55;
- *bp++ = (png_byte)b;
- }
- break;
- }
-
- case 4:
- /* Must be 4bpp gray */
- /* assert(channels == 1) */
- {
- png_bytep bp = row;
- png_bytep bp_end = bp + row_info->rowbytes;
- int gray_shift = shift[0];
- int mask = 0xf >> gray_shift;
-
- mask |= mask << 4;
-
- while (bp < bp_end)
- {
- int b = (*bp >> gray_shift) & mask;
- *bp++ = (png_byte)b;
- }
- break;
- }
-
- case 8:
- /* Single byte components, G, GA, RGB, RGBA */
- {
- png_bytep bp = row;
- png_bytep bp_end = bp + row_info->rowbytes;
- int channel = 0;
-
- while (bp < bp_end)
- {
- int b = *bp >> shift[channel];
- if (++channel >= channels)
- channel = 0;
- *bp++ = (png_byte)b;
- }
- break;
- }
-
-#ifdef PNG_READ_16BIT_SUPPORTED
- case 16:
- /* Double byte components, G, GA, RGB, RGBA */
- {
- png_bytep bp = row;
- png_bytep bp_end = bp + row_info->rowbytes;
- int channel = 0;
-
- while (bp < bp_end)
- {
- int value = (bp[0] << 8) + bp[1];
-
- value >>= shift[channel];
- if (++channel >= channels)
- channel = 0;
- *bp++ = (png_byte)(value >> 8);
- *bp++ = (png_byte)value;
- }
- break;
- }
-#endif
- }
- }
-}
-#endif
-
-#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
-/* Scale rows of bit depth 16 down to 8 accurately */
-static void
-png_do_scale_16_to_8(png_row_infop row_info, png_bytep row)
-{
- png_debug(1, "in png_do_scale_16_to_8");
-
- if (row_info->bit_depth == 16)
- {
- png_bytep sp = row; /* source */
- png_bytep dp = row; /* destination */
- png_bytep ep = sp + row_info->rowbytes; /* end+1 */
-
- while (sp < ep)
- {
- /* The input is an array of 16-bit components, these must be scaled to
- * 8 bits each. For a 16-bit value V the required value (from the PNG
- * specification) is:
- *
- * (V * 255) / 65535
- *
- * This reduces to round(V / 257), or floor((V + 128.5)/257)
- *
- * Represent V as the two byte value vhi.vlo. Make a guess that the
- * result is the top byte of V, vhi, then the correction to this value
- * is:
- *
- * error = floor(((V-vhi.vhi) + 128.5) / 257)
- * = floor(((vlo-vhi) + 128.5) / 257)
- *
- * This can be approximated using integer arithmetic (and a signed
- * shift):
- *
- * error = (vlo-vhi+128) >> 8;
- *
- * The approximate differs from the exact answer only when (vlo-vhi) is
- * 128; it then gives a correction of +1 when the exact correction is
- * 0. This gives 128 errors. The exact answer (correct for all 16-bit
- * input values) is:
- *
- * error = (vlo-vhi+128)*65535 >> 24;
- *
- * An alternative arithmetic calculation which also gives no errors is:
- *
- * (V * 255 + 32895) >> 16
- */
-
- png_int_32 tmp = *sp++; /* must be signed! */
- tmp += (((int)*sp++ - tmp + 128) * 65535) >> 24;
- *dp++ = (png_byte)tmp;
- }
-
- row_info->bit_depth = 8;
- row_info->pixel_depth = (png_byte)(8 * row_info->channels);
- row_info->rowbytes = row_info->width * row_info->channels;
- }
-}
-#endif
-
-#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
-static void
-/* Simply discard the low byte. This was the default behavior prior
- * to libpng-1.5.4.
- */
-png_do_chop(png_row_infop row_info, png_bytep row)
-{
- png_debug(1, "in png_do_chop");
-
- if (row_info->bit_depth == 16)
- {
- png_bytep sp = row; /* source */
- png_bytep dp = row; /* destination */
- png_bytep ep = sp + row_info->rowbytes; /* end+1 */
-
- while (sp < ep)
- {
- *dp++ = *sp;
- sp += 2; /* skip low byte */
- }
-
- row_info->bit_depth = 8;
- row_info->pixel_depth = (png_byte)(8 * row_info->channels);
- row_info->rowbytes = row_info->width * row_info->channels;
- }
-}
-#endif
-
-#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED
-static void
-png_do_read_swap_alpha(png_row_infop row_info, png_bytep row)
-{
- png_uint_32 row_width = row_info->width;
-
- png_debug(1, "in png_do_read_swap_alpha");
-
- if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- {
- /* This converts from RGBA to ARGB */
- if (row_info->bit_depth == 8)
- {
- png_bytep sp = row + row_info->rowbytes;
- png_bytep dp = sp;
- png_byte save;
- png_uint_32 i;
-
- for (i = 0; i < row_width; i++)
- {
- save = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = save;
- }
- }
-
-#ifdef PNG_READ_16BIT_SUPPORTED
- /* This converts from RRGGBBAA to AARRGGBB */
- else
- {
- png_bytep sp = row + row_info->rowbytes;
- png_bytep dp = sp;
- png_byte save[2];
- png_uint_32 i;
-
- for (i = 0; i < row_width; i++)
- {
- save[0] = *(--sp);
- save[1] = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = save[0];
- *(--dp) = save[1];
- }
- }
-#endif
- }
-
- else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- {
- /* This converts from GA to AG */
- if (row_info->bit_depth == 8)
- {
- png_bytep sp = row + row_info->rowbytes;
- png_bytep dp = sp;
- png_byte save;
- png_uint_32 i;
-
- for (i = 0; i < row_width; i++)
- {
- save = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = save;
- }
- }
-
-#ifdef PNG_READ_16BIT_SUPPORTED
- /* This converts from GGAA to AAGG */
- else
- {
- png_bytep sp = row + row_info->rowbytes;
- png_bytep dp = sp;
- png_byte save[2];
- png_uint_32 i;
-
- for (i = 0; i < row_width; i++)
- {
- save[0] = *(--sp);
- save[1] = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = save[0];
- *(--dp) = save[1];
- }
- }
-#endif
- }
-}
-#endif
-
-#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
-static void
-png_do_read_invert_alpha(png_row_infop row_info, png_bytep row)
-{
- png_uint_32 row_width;
- png_debug(1, "in png_do_read_invert_alpha");
-
- row_width = row_info->width;
- if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- {
- if (row_info->bit_depth == 8)
- {
- /* This inverts the alpha channel in RGBA */
- png_bytep sp = row + row_info->rowbytes;
- png_bytep dp = sp;
- png_uint_32 i;
-
- for (i = 0; i < row_width; i++)
- {
- *(--dp) = (png_byte)(255 - *(--sp));
-
-/* This does nothing:
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- We can replace it with:
-*/
- sp-=3;
- dp=sp;
- }
- }
-
-#ifdef PNG_READ_16BIT_SUPPORTED
- /* This inverts the alpha channel in RRGGBBAA */
- else
- {
- png_bytep sp = row + row_info->rowbytes;
- png_bytep dp = sp;
- png_uint_32 i;
-
- for (i = 0; i < row_width; i++)
- {
- *(--dp) = (png_byte)(255 - *(--sp));
- *(--dp) = (png_byte)(255 - *(--sp));
-
-/* This does nothing:
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- We can replace it with:
-*/
- sp-=6;
- dp=sp;
- }
- }
-#endif
- }
- else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- {
- if (row_info->bit_depth == 8)
- {
- /* This inverts the alpha channel in GA */
- png_bytep sp = row + row_info->rowbytes;
- png_bytep dp = sp;
- png_uint_32 i;
-
- for (i = 0; i < row_width; i++)
- {
- *(--dp) = (png_byte)(255 - *(--sp));
- *(--dp) = *(--sp);
- }
- }
-
-#ifdef PNG_READ_16BIT_SUPPORTED
- else
- {
- /* This inverts the alpha channel in GGAA */
- png_bytep sp = row + row_info->rowbytes;
- png_bytep dp = sp;
- png_uint_32 i;
-
- for (i = 0; i < row_width; i++)
- {
- *(--dp) = (png_byte)(255 - *(--sp));
- *(--dp) = (png_byte)(255 - *(--sp));
-/*
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
-*/
- sp-=2;
- dp=sp;
- }
- }
-#endif
- }
-}
-#endif
-
-#ifdef PNG_READ_FILLER_SUPPORTED
-/* Add filler channel if we have RGB color */
-static void
-png_do_read_filler(png_row_infop row_info, png_bytep row,
- png_uint_32 filler, png_uint_32 flags)
-{
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
-#ifdef PNG_READ_16BIT_SUPPORTED
- png_byte hi_filler = (png_byte)(filler>>8);
-#endif
- png_byte lo_filler = (png_byte)filler;
-
- png_debug(1, "in png_do_read_filler");
-
- if (
- row_info->color_type == PNG_COLOR_TYPE_GRAY)
- {
- if (row_info->bit_depth == 8)
- {
- if ((flags & PNG_FLAG_FILLER_AFTER) != 0)
- {
- /* This changes the data from G to GX */
- png_bytep sp = row + (size_t)row_width;
- png_bytep dp = sp + (size_t)row_width;
- for (i = 1; i < row_width; i++)
- {
- *(--dp) = lo_filler;
- *(--dp) = *(--sp);
- }
- *(--dp) = lo_filler;
- row_info->channels = 2;
- row_info->pixel_depth = 16;
- row_info->rowbytes = row_width * 2;
- }
-
- else
- {
- /* This changes the data from G to XG */
- png_bytep sp = row + (size_t)row_width;
- png_bytep dp = sp + (size_t)row_width;
- for (i = 0; i < row_width; i++)
- {
- *(--dp) = *(--sp);
- *(--dp) = lo_filler;
- }
- row_info->channels = 2;
- row_info->pixel_depth = 16;
- row_info->rowbytes = row_width * 2;
- }
- }
-
-#ifdef PNG_READ_16BIT_SUPPORTED
- else if (row_info->bit_depth == 16)
- {
- if ((flags & PNG_FLAG_FILLER_AFTER) != 0)
- {
- /* This changes the data from GG to GGXX */
- png_bytep sp = row + (size_t)row_width * 2;
- png_bytep dp = sp + (size_t)row_width * 2;
- for (i = 1; i < row_width; i++)
- {
- *(--dp) = lo_filler;
- *(--dp) = hi_filler;
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- }
- *(--dp) = lo_filler;
- *(--dp) = hi_filler;
- row_info->channels = 2;
- row_info->pixel_depth = 32;
- row_info->rowbytes = row_width * 4;
- }
-
- else
- {
- /* This changes the data from GG to XXGG */
- png_bytep sp = row + (size_t)row_width * 2;
- png_bytep dp = sp + (size_t)row_width * 2;
- for (i = 0; i < row_width; i++)
- {
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = lo_filler;
- *(--dp) = hi_filler;
- }
- row_info->channels = 2;
- row_info->pixel_depth = 32;
- row_info->rowbytes = row_width * 4;
- }
- }
-#endif
- } /* COLOR_TYPE == GRAY */
- else if (row_info->color_type == PNG_COLOR_TYPE_RGB)
- {
- if (row_info->bit_depth == 8)
- {
- if ((flags & PNG_FLAG_FILLER_AFTER) != 0)
- {
- /* This changes the data from RGB to RGBX */
- png_bytep sp = row + (size_t)row_width * 3;
- png_bytep dp = sp + (size_t)row_width;
- for (i = 1; i < row_width; i++)
- {
- *(--dp) = lo_filler;
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- }
- *(--dp) = lo_filler;
- row_info->channels = 4;
- row_info->pixel_depth = 32;
- row_info->rowbytes = row_width * 4;
- }
-
- else
- {
- /* This changes the data from RGB to XRGB */
- png_bytep sp = row + (size_t)row_width * 3;
- png_bytep dp = sp + (size_t)row_width;
- for (i = 0; i < row_width; i++)
- {
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = lo_filler;
- }
- row_info->channels = 4;
- row_info->pixel_depth = 32;
- row_info->rowbytes = row_width * 4;
- }
- }
-
-#ifdef PNG_READ_16BIT_SUPPORTED
- else if (row_info->bit_depth == 16)
- {
- if ((flags & PNG_FLAG_FILLER_AFTER) != 0)
- {
- /* This changes the data from RRGGBB to RRGGBBXX */
- png_bytep sp = row + (size_t)row_width * 6;
- png_bytep dp = sp + (size_t)row_width * 2;
- for (i = 1; i < row_width; i++)
- {
- *(--dp) = lo_filler;
- *(--dp) = hi_filler;
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- }
- *(--dp) = lo_filler;
- *(--dp) = hi_filler;
- row_info->channels = 4;
- row_info->pixel_depth = 64;
- row_info->rowbytes = row_width * 8;
- }
-
- else
- {
- /* This changes the data from RRGGBB to XXRRGGBB */
- png_bytep sp = row + (size_t)row_width * 6;
- png_bytep dp = sp + (size_t)row_width * 2;
- for (i = 0; i < row_width; i++)
- {
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = *(--sp);
- *(--dp) = lo_filler;
- *(--dp) = hi_filler;
- }
-
- row_info->channels = 4;
- row_info->pixel_depth = 64;
- row_info->rowbytes = row_width * 8;
- }
- }
-#endif
- } /* COLOR_TYPE == RGB */
-}
-#endif
-
-#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
-/* Expand grayscale files to RGB, with or without alpha */
-static void
-png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
-{
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
- png_debug(1, "in png_do_gray_to_rgb");
-
- if (row_info->bit_depth >= 8 &&
- (row_info->color_type & PNG_COLOR_MASK_COLOR) == 0)
- {
- if (row_info->color_type == PNG_COLOR_TYPE_GRAY)
- {
- if (row_info->bit_depth == 8)
- {
- /* This changes G to RGB */
- png_bytep sp = row + (size_t)row_width - 1;
- png_bytep dp = sp + (size_t)row_width * 2;
- for (i = 0; i < row_width; i++)
- {
- *(dp--) = *sp;
- *(dp--) = *sp;
- *(dp--) = *(sp--);
- }
- }
-
- else
- {
- /* This changes GG to RRGGBB */
- png_bytep sp = row + (size_t)row_width * 2 - 1;
- png_bytep dp = sp + (size_t)row_width * 4;
- for (i = 0; i < row_width; i++)
- {
- *(dp--) = *sp;
- *(dp--) = *(sp - 1);
- *(dp--) = *sp;
- *(dp--) = *(sp - 1);
- *(dp--) = *(sp--);
- *(dp--) = *(sp--);
- }
- }
- }
-
- else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- {
- if (row_info->bit_depth == 8)
- {
- /* This changes GA to RGBA */
- png_bytep sp = row + (size_t)row_width * 2 - 1;
- png_bytep dp = sp + (size_t)row_width * 2;
- for (i = 0; i < row_width; i++)
- {
- *(dp--) = *(sp--);
- *(dp--) = *sp;
- *(dp--) = *sp;
- *(dp--) = *(sp--);
- }
- }
-
- else
- {
- /* This changes GGAA to RRGGBBAA */
- png_bytep sp = row + (size_t)row_width * 4 - 1;
- png_bytep dp = sp + (size_t)row_width * 4;
- for (i = 0; i < row_width; i++)
- {
- *(dp--) = *(sp--);
- *(dp--) = *(sp--);
- *(dp--) = *sp;
- *(dp--) = *(sp - 1);
- *(dp--) = *sp;
- *(dp--) = *(sp - 1);
- *(dp--) = *(sp--);
- *(dp--) = *(sp--);
- }
- }
- }
- row_info->channels = (png_byte)(row_info->channels + 2);
- row_info->color_type |= PNG_COLOR_MASK_COLOR;
- row_info->pixel_depth = (png_byte)(row_info->channels *
- row_info->bit_depth);
- row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width);
- }
-}
-#endif
-
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
-/* Reduce RGB files to grayscale, with or without alpha
- * using the equation given in Poynton's ColorFAQ of 1998-01-04 at
- * <http://www.inforamp.net/~poynton/> (THIS LINK IS DEAD June 2008 but
- * versions dated 1998 through November 2002 have been archived at
- * https://web.archive.org/web/20000816232553/www.inforamp.net/
- * ~poynton/notes/colour_and_gamma/ColorFAQ.txt )
- * Charles Poynton poynton at poynton.com
- *
- * Y = 0.212671 * R + 0.715160 * G + 0.072169 * B
- *
- * which can be expressed with integers as
- *
- * Y = (6969 * R + 23434 * G + 2365 * B)/32768
- *
- * Poynton's current link (as of January 2003 through July 2011):
- * <http://www.poynton.com/notes/colour_and_gamma/>
- * has changed the numbers slightly:
- *
- * Y = 0.2126*R + 0.7152*G + 0.0722*B
- *
- * which can be expressed with integers as
- *
- * Y = (6966 * R + 23436 * G + 2366 * B)/32768
- *
- * Historically, however, libpng uses numbers derived from the ITU-R Rec 709
- * end point chromaticities and the D65 white point. Depending on the
- * precision used for the D65 white point this produces a variety of different
- * numbers, however if the four decimal place value used in ITU-R Rec 709 is
- * used (0.3127,0.3290) the Y calculation would be:
- *
- * Y = (6968 * R + 23435 * G + 2366 * B)/32768
- *
- * While this is correct the rounding results in an overflow for white, because
- * the sum of the rounded coefficients is 32769, not 32768. Consequently
- * libpng uses, instead, the closest non-overflowing approximation:
- *
- * Y = (6968 * R + 23434 * G + 2366 * B)/32768
- *
- * Starting with libpng-1.5.5, if the image being converted has a cHRM chunk
- * (including an sRGB chunk) then the chromaticities are used to calculate the
- * coefficients. See the chunk handling in pngrutil.c for more information.
- *
- * In all cases the calculation is to be done in a linear colorspace. If no
- * gamma information is available to correct the encoding of the original RGB
- * values this results in an implicit assumption that the original PNG RGB
- * values were linear.
- *
- * Other integer coefficients can be used via png_set_rgb_to_gray(). Because
- * the API takes just red and green coefficients the blue coefficient is
- * calculated to make the sum 32768. This will result in different rounding
- * to that used above.
- */
-static int
-png_do_rgb_to_gray(png_structrp png_ptr, png_row_infop row_info, png_bytep row)
-{
- int rgb_error = 0;
-
- png_debug(1, "in png_do_rgb_to_gray");
-
- if ((row_info->color_type & PNG_COLOR_MASK_PALETTE) == 0 &&
- (row_info->color_type & PNG_COLOR_MASK_COLOR) != 0)
- {
- png_uint_32 rc = png_ptr->rgb_to_gray_red_coeff;
- png_uint_32 gc = png_ptr->rgb_to_gray_green_coeff;
- png_uint_32 bc = 32768 - rc - gc;
- png_uint_32 row_width = row_info->width;
- int have_alpha = (row_info->color_type & PNG_COLOR_MASK_ALPHA) != 0;
-
- if (row_info->bit_depth == 8)
- {
-#ifdef PNG_READ_GAMMA_SUPPORTED
- /* Notice that gamma to/from 1 are not necessarily inverses (if
- * there is an overall gamma correction). Prior to 1.5.5 this code
- * checked the linearized values for equality; this doesn't match
- * the documentation, the original values must be checked.
- */
- if (png_ptr->gamma_from_1 != NULL && png_ptr->gamma_to_1 != NULL)
- {
- png_bytep sp = row;
- png_bytep dp = row;
- png_uint_32 i;
-
- for (i = 0; i < row_width; i++)
- {
- png_byte red = *(sp++);
- png_byte green = *(sp++);
- png_byte blue = *(sp++);
-
- if (red != green || red != blue)
- {
- red = png_ptr->gamma_to_1[red];
- green = png_ptr->gamma_to_1[green];
- blue = png_ptr->gamma_to_1[blue];
-
- rgb_error |= 1;
- *(dp++) = png_ptr->gamma_from_1[
- (rc*red + gc*green + bc*blue + 16384)>>15];
- }
-
- else
- {
- /* If there is no overall correction the table will not be
- * set.
- */
- if (png_ptr->gamma_table != NULL)
- red = png_ptr->gamma_table[red];
-
- *(dp++) = red;
- }
-
- if (have_alpha != 0)
- *(dp++) = *(sp++);
- }
- }
- else
-#endif
- {
- png_bytep sp = row;
- png_bytep dp = row;
- png_uint_32 i;
-
- for (i = 0; i < row_width; i++)
- {
- png_byte red = *(sp++);
- png_byte green = *(sp++);
- png_byte blue = *(sp++);
-
- if (red != green || red != blue)
- {
- rgb_error |= 1;
- /* NOTE: this is the historical approach which simply
- * truncates the results.
- */
- *(dp++) = (png_byte)((rc*red + gc*green + bc*blue)>>15);
- }
-
- else
- *(dp++) = red;
-
- if (have_alpha != 0)
- *(dp++) = *(sp++);
- }
- }
- }
-
- else /* RGB bit_depth == 16 */
- {
-#ifdef PNG_READ_GAMMA_SUPPORTED
- if (png_ptr->gamma_16_to_1 != NULL && png_ptr->gamma_16_from_1 != NULL)
- {
- png_bytep sp = row;
- png_bytep dp = row;
- png_uint_32 i;
-
- for (i = 0; i < row_width; i++)
- {
- png_uint_16 red, green, blue, w;
- png_byte hi,lo;
-
- hi=*(sp)++; lo=*(sp)++; red = (png_uint_16)((hi << 8) | (lo));
- hi=*(sp)++; lo=*(sp)++; green = (png_uint_16)((hi << 8) | (lo));
- hi=*(sp)++; lo=*(sp)++; blue = (png_uint_16)((hi << 8) | (lo));
-
- if (red == green && red == blue)
- {
- if (png_ptr->gamma_16_table != NULL)
- w = png_ptr->gamma_16_table[(red & 0xff)
- >> png_ptr->gamma_shift][red >> 8];
-
- else
- w = red;
- }
-
- else
- {
- png_uint_16 red_1 = png_ptr->gamma_16_to_1[(red & 0xff)
- >> png_ptr->gamma_shift][red>>8];
- png_uint_16 green_1 =
- png_ptr->gamma_16_to_1[(green & 0xff) >>
- png_ptr->gamma_shift][green>>8];
- png_uint_16 blue_1 = png_ptr->gamma_16_to_1[(blue & 0xff)
- >> png_ptr->gamma_shift][blue>>8];
- png_uint_16 gray16 = (png_uint_16)((rc*red_1 + gc*green_1
- + bc*blue_1 + 16384)>>15);
- w = png_ptr->gamma_16_from_1[(gray16 & 0xff) >>
- png_ptr->gamma_shift][gray16 >> 8];
- rgb_error |= 1;
- }
-
- *(dp++) = (png_byte)((w>>8) & 0xff);
- *(dp++) = (png_byte)(w & 0xff);
-
- if (have_alpha != 0)
- {
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- }
- }
- }
- else
-#endif
- {
- png_bytep sp = row;
- png_bytep dp = row;
- png_uint_32 i;
-
- for (i = 0; i < row_width; i++)
- {
- png_uint_16 red, green, blue, gray16;
- png_byte hi,lo;
-
- hi=*(sp)++; lo=*(sp)++; red = (png_uint_16)((hi << 8) | (lo));
- hi=*(sp)++; lo=*(sp)++; green = (png_uint_16)((hi << 8) | (lo));
- hi=*(sp)++; lo=*(sp)++; blue = (png_uint_16)((hi << 8) | (lo));
-
- if (red != green || red != blue)
- rgb_error |= 1;
-
- /* From 1.5.5 in the 16-bit case do the accurate conversion even
- * in the 'fast' case - this is because this is where the code
- * ends up when handling linear 16-bit data.
- */
- gray16 = (png_uint_16)((rc*red + gc*green + bc*blue + 16384) >>
- 15);
- *(dp++) = (png_byte)((gray16 >> 8) & 0xff);
- *(dp++) = (png_byte)(gray16 & 0xff);
-
- if (have_alpha != 0)
- {
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- }
- }
- }
- }
-
- row_info->channels = (png_byte)(row_info->channels - 2);
- row_info->color_type = (png_byte)(row_info->color_type &
- ~PNG_COLOR_MASK_COLOR);
- row_info->pixel_depth = (png_byte)(row_info->channels *
- row_info->bit_depth);
- row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width);
- }
- return rgb_error;
-}
-#endif
-
-#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
- defined(PNG_READ_ALPHA_MODE_SUPPORTED)
-/* Replace any alpha or transparency with the supplied background color.
- * "background" is already in the screen gamma, while "background_1" is
- * at a gamma of 1.0. Paletted files have already been taken care of.
- */
-static void
-png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
-{
-#ifdef PNG_READ_GAMMA_SUPPORTED
- png_const_bytep gamma_table = png_ptr->gamma_table;
- png_const_bytep gamma_from_1 = png_ptr->gamma_from_1;
- png_const_bytep gamma_to_1 = png_ptr->gamma_to_1;
- png_const_uint_16pp gamma_16 = png_ptr->gamma_16_table;
- png_const_uint_16pp gamma_16_from_1 = png_ptr->gamma_16_from_1;
- png_const_uint_16pp gamma_16_to_1 = png_ptr->gamma_16_to_1;
- int gamma_shift = png_ptr->gamma_shift;
- int optimize = (png_ptr->flags & PNG_FLAG_OPTIMIZE_ALPHA) != 0;
-#endif
-
- png_bytep sp;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
- int shift;
-
- png_debug(1, "in png_do_compose");
-
- switch (row_info->color_type)
- {
- case PNG_COLOR_TYPE_GRAY:
- {
- switch (row_info->bit_depth)
- {
- case 1:
- {
- sp = row;
- shift = 7;
- for (i = 0; i < row_width; i++)
- {
- if ((png_uint_16)((*sp >> shift) & 0x01)
- == png_ptr->trans_color.gray)
- {
- unsigned int tmp = *sp & (0x7f7f >> (7 - shift));
- tmp |=
- (unsigned int)(png_ptr->background.gray << shift);
- *sp = (png_byte)(tmp & 0xff);
- }
-
- if (shift == 0)
- {
- shift = 7;
- sp++;
- }
-
- else
- shift--;
- }
- break;
- }
-
- case 2:
- {
-#ifdef PNG_READ_GAMMA_SUPPORTED
- if (gamma_table != NULL)
- {
- sp = row;
- shift = 6;
- for (i = 0; i < row_width; i++)
- {
- if ((png_uint_16)((*sp >> shift) & 0x03)
- == png_ptr->trans_color.gray)
- {
- unsigned int tmp = *sp & (0x3f3f >> (6 - shift));
- tmp |=
- (unsigned int)png_ptr->background.gray << shift;
- *sp = (png_byte)(tmp & 0xff);
- }
-
- else
- {
- unsigned int p = (*sp >> shift) & 0x03;
- unsigned int g = (gamma_table [p | (p << 2) |
- (p << 4) | (p << 6)] >> 6) & 0x03;
- unsigned int tmp = *sp & (0x3f3f >> (6 - shift));
- tmp |= (unsigned int)(g << shift);
- *sp = (png_byte)(tmp & 0xff);
- }
-
- if (shift == 0)
- {
- shift = 6;
- sp++;
- }
-
- else
- shift -= 2;
- }
- }
-
- else
-#endif
- {
- sp = row;
- shift = 6;
- for (i = 0; i < row_width; i++)
- {
- if ((png_uint_16)((*sp >> shift) & 0x03)
- == png_ptr->trans_color.gray)
- {
- unsigned int tmp = *sp & (0x3f3f >> (6 - shift));
- tmp |=
- (unsigned int)png_ptr->background.gray << shift;
- *sp = (png_byte)(tmp & 0xff);
- }
-
- if (shift == 0)
- {
- shift = 6;
- sp++;
- }
-
- else
- shift -= 2;
- }
- }
- break;
- }
-
- case 4:
- {
-#ifdef PNG_READ_GAMMA_SUPPORTED
- if (gamma_table != NULL)
- {
- sp = row;
- shift = 4;
- for (i = 0; i < row_width; i++)
- {
- if ((png_uint_16)((*sp >> shift) & 0x0f)
- == png_ptr->trans_color.gray)
- {
- unsigned int tmp = *sp & (0x0f0f >> (4 - shift));
- tmp |=
- (unsigned int)(png_ptr->background.gray << shift);
- *sp = (png_byte)(tmp & 0xff);
- }
-
- else
- {
- unsigned int p = (*sp >> shift) & 0x0f;
- unsigned int g = (gamma_table[p | (p << 4)] >> 4) &
- 0x0f;
- unsigned int tmp = *sp & (0x0f0f >> (4 - shift));
- tmp |= (unsigned int)(g << shift);
- *sp = (png_byte)(tmp & 0xff);
- }
-
- if (shift == 0)
- {
- shift = 4;
- sp++;
- }
-
- else
- shift -= 4;
- }
- }
-
- else
-#endif
- {
- sp = row;
- shift = 4;
- for (i = 0; i < row_width; i++)
- {
- if ((png_uint_16)((*sp >> shift) & 0x0f)
- == png_ptr->trans_color.gray)
- {
- unsigned int tmp = *sp & (0x0f0f >> (4 - shift));
- tmp |=
- (unsigned int)(png_ptr->background.gray << shift);
- *sp = (png_byte)(tmp & 0xff);
- }
-
- if (shift == 0)
- {
- shift = 4;
- sp++;
- }
-
- else
- shift -= 4;
- }
- }
- break;
- }
-
- case 8:
- {
-#ifdef PNG_READ_GAMMA_SUPPORTED
- if (gamma_table != NULL)
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp++)
- {
- if (*sp == png_ptr->trans_color.gray)
- *sp = (png_byte)png_ptr->background.gray;
-
- else
- *sp = gamma_table[*sp];
- }
- }
- else
-#endif
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp++)
- {
- if (*sp == png_ptr->trans_color.gray)
- *sp = (png_byte)png_ptr->background.gray;
- }
- }
- break;
- }
-
- case 16:
- {
-#ifdef PNG_READ_GAMMA_SUPPORTED
- if (gamma_16 != NULL)
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp += 2)
- {
- png_uint_16 v;
-
- v = (png_uint_16)(((*sp) << 8) + *(sp + 1));
-
- if (v == png_ptr->trans_color.gray)
- {
- /* Background is already in screen gamma */
- *sp = (png_byte)((png_ptr->background.gray >> 8)
- & 0xff);
- *(sp + 1) = (png_byte)(png_ptr->background.gray
- & 0xff);
- }
-
- else
- {
- v = gamma_16[*(sp + 1) >> gamma_shift][*sp];
- *sp = (png_byte)((v >> 8) & 0xff);
- *(sp + 1) = (png_byte)(v & 0xff);
- }
- }
- }
- else
-#endif
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp += 2)
- {
- png_uint_16 v;
-
- v = (png_uint_16)(((*sp) << 8) + *(sp + 1));
-
- if (v == png_ptr->trans_color.gray)
- {
- *sp = (png_byte)((png_ptr->background.gray >> 8)
- & 0xff);
- *(sp + 1) = (png_byte)(png_ptr->background.gray
- & 0xff);
- }
- }
- }
- break;
- }
-
- default:
- break;
- }
- break;
- }
-
- case PNG_COLOR_TYPE_RGB:
- {
- if (row_info->bit_depth == 8)
- {
-#ifdef PNG_READ_GAMMA_SUPPORTED
- if (gamma_table != NULL)
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp += 3)
- {
- if (*sp == png_ptr->trans_color.red &&
- *(sp + 1) == png_ptr->trans_color.green &&
- *(sp + 2) == png_ptr->trans_color.blue)
- {
- *sp = (png_byte)png_ptr->background.red;
- *(sp + 1) = (png_byte)png_ptr->background.green;
- *(sp + 2) = (png_byte)png_ptr->background.blue;
- }
-
- else
- {
- *sp = gamma_table[*sp];
- *(sp + 1) = gamma_table[*(sp + 1)];
- *(sp + 2) = gamma_table[*(sp + 2)];
- }
- }
- }
- else
-#endif
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp += 3)
- {
- if (*sp == png_ptr->trans_color.red &&
- *(sp + 1) == png_ptr->trans_color.green &&
- *(sp + 2) == png_ptr->trans_color.blue)
- {
- *sp = (png_byte)png_ptr->background.red;
- *(sp + 1) = (png_byte)png_ptr->background.green;
- *(sp + 2) = (png_byte)png_ptr->background.blue;
- }
- }
- }
- }
- else /* if (row_info->bit_depth == 16) */
- {
-#ifdef PNG_READ_GAMMA_SUPPORTED
- if (gamma_16 != NULL)
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp += 6)
- {
- png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1));
-
- png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8)
- + *(sp + 3));
-
- png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8)
- + *(sp + 5));
-
- if (r == png_ptr->trans_color.red &&
- g == png_ptr->trans_color.green &&
- b == png_ptr->trans_color.blue)
- {
- /* Background is already in screen gamma */
- *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
- *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
- *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
- & 0xff);
- *(sp + 3) = (png_byte)(png_ptr->background.green
- & 0xff);
- *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
- & 0xff);
- *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
- }
-
- else
- {
- png_uint_16 v = gamma_16[*(sp + 1) >> gamma_shift][*sp];
- *sp = (png_byte)((v >> 8) & 0xff);
- *(sp + 1) = (png_byte)(v & 0xff);
-
- v = gamma_16[*(sp + 3) >> gamma_shift][*(sp + 2)];
- *(sp + 2) = (png_byte)((v >> 8) & 0xff);
- *(sp + 3) = (png_byte)(v & 0xff);
-
- v = gamma_16[*(sp + 5) >> gamma_shift][*(sp + 4)];
- *(sp + 4) = (png_byte)((v >> 8) & 0xff);
- *(sp + 5) = (png_byte)(v & 0xff);
- }
- }
- }
-
- else
-#endif
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp += 6)
- {
- png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1));
-
- png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8)
- + *(sp + 3));
-
- png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8)
- + *(sp + 5));
-
- if (r == png_ptr->trans_color.red &&
- g == png_ptr->trans_color.green &&
- b == png_ptr->trans_color.blue)
- {
- *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
- *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
- *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
- & 0xff);
- *(sp + 3) = (png_byte)(png_ptr->background.green
- & 0xff);
- *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
- & 0xff);
- *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
- }
- }
- }
- }
- break;
- }
-
- case PNG_COLOR_TYPE_GRAY_ALPHA:
- {
- if (row_info->bit_depth == 8)
- {
-#ifdef PNG_READ_GAMMA_SUPPORTED
- if (gamma_to_1 != NULL && gamma_from_1 != NULL &&
- gamma_table != NULL)
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp += 2)
- {
- png_uint_16 a = *(sp + 1);
-
- if (a == 0xff)
- *sp = gamma_table[*sp];
-
- else if (a == 0)
- {
- /* Background is already in screen gamma */
- *sp = (png_byte)png_ptr->background.gray;
- }
-
- else
- {
- png_byte v, w;
-
- v = gamma_to_1[*sp];
- png_composite(w, v, a, png_ptr->background_1.gray);
- if (optimize == 0)
- w = gamma_from_1[w];
- *sp = w;
- }
- }
- }
- else
-#endif
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp += 2)
- {
- png_byte a = *(sp + 1);
-
- if (a == 0)
- *sp = (png_byte)png_ptr->background.gray;
-
- else if (a < 0xff)
- png_composite(*sp, *sp, a, png_ptr->background.gray);
- }
- }
- }
- else /* if (png_ptr->bit_depth == 16) */
- {
-#ifdef PNG_READ_GAMMA_SUPPORTED
- if (gamma_16 != NULL && gamma_16_from_1 != NULL &&
- gamma_16_to_1 != NULL)
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp += 4)
- {
- png_uint_16 a = (png_uint_16)(((*(sp + 2)) << 8)
- + *(sp + 3));
-
- if (a == (png_uint_16)0xffff)
- {
- png_uint_16 v;
-
- v = gamma_16[*(sp + 1) >> gamma_shift][*sp];
- *sp = (png_byte)((v >> 8) & 0xff);
- *(sp + 1) = (png_byte)(v & 0xff);
- }
-
- else if (a == 0)
- {
- /* Background is already in screen gamma */
- *sp = (png_byte)((png_ptr->background.gray >> 8)
- & 0xff);
- *(sp + 1) = (png_byte)(png_ptr->background.gray & 0xff);
- }
-
- else
- {
- png_uint_16 g, v, w;
-
- g = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp];
- png_composite_16(v, g, a, png_ptr->background_1.gray);
- if (optimize != 0)
- w = v;
- else
- w = gamma_16_from_1[(v & 0xff) >>
- gamma_shift][v >> 8];
- *sp = (png_byte)((w >> 8) & 0xff);
- *(sp + 1) = (png_byte)(w & 0xff);
- }
- }
- }
- else
-#endif
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp += 4)
- {
- png_uint_16 a = (png_uint_16)(((*(sp + 2)) << 8)
- + *(sp + 3));
-
- if (a == 0)
- {
- *sp = (png_byte)((png_ptr->background.gray >> 8)
- & 0xff);
- *(sp + 1) = (png_byte)(png_ptr->background.gray & 0xff);
- }
-
- else if (a < 0xffff)
- {
- png_uint_16 g, v;
-
- g = (png_uint_16)(((*sp) << 8) + *(sp + 1));
- png_composite_16(v, g, a, png_ptr->background.gray);
- *sp = (png_byte)((v >> 8) & 0xff);
- *(sp + 1) = (png_byte)(v & 0xff);
- }
- }
- }
- }
- break;
- }
-
- case PNG_COLOR_TYPE_RGB_ALPHA:
- {
- if (row_info->bit_depth == 8)
- {
-#ifdef PNG_READ_GAMMA_SUPPORTED
- if (gamma_to_1 != NULL && gamma_from_1 != NULL &&
- gamma_table != NULL)
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp += 4)
- {
- png_byte a = *(sp + 3);
-
- if (a == 0xff)
- {
- *sp = gamma_table[*sp];
- *(sp + 1) = gamma_table[*(sp + 1)];
- *(sp + 2) = gamma_table[*(sp + 2)];
- }
-
- else if (a == 0)
- {
- /* Background is already in screen gamma */
- *sp = (png_byte)png_ptr->background.red;
- *(sp + 1) = (png_byte)png_ptr->background.green;
- *(sp + 2) = (png_byte)png_ptr->background.blue;
- }
-
- else
- {
- png_byte v, w;
-
- v = gamma_to_1[*sp];
- png_composite(w, v, a, png_ptr->background_1.red);
- if (optimize == 0) w = gamma_from_1[w];
- *sp = w;
-
- v = gamma_to_1[*(sp + 1)];
- png_composite(w, v, a, png_ptr->background_1.green);
- if (optimize == 0) w = gamma_from_1[w];
- *(sp + 1) = w;
-
- v = gamma_to_1[*(sp + 2)];
- png_composite(w, v, a, png_ptr->background_1.blue);
- if (optimize == 0) w = gamma_from_1[w];
- *(sp + 2) = w;
- }
- }
- }
- else
-#endif
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp += 4)
- {
- png_byte a = *(sp + 3);
-
- if (a == 0)
- {
- *sp = (png_byte)png_ptr->background.red;
- *(sp + 1) = (png_byte)png_ptr->background.green;
- *(sp + 2) = (png_byte)png_ptr->background.blue;
- }
-
- else if (a < 0xff)
- {
- png_composite(*sp, *sp, a, png_ptr->background.red);
-
- png_composite(*(sp + 1), *(sp + 1), a,
- png_ptr->background.green);
-
- png_composite(*(sp + 2), *(sp + 2), a,
- png_ptr->background.blue);
- }
- }
- }
- }
- else /* if (row_info->bit_depth == 16) */
- {
-#ifdef PNG_READ_GAMMA_SUPPORTED
- if (gamma_16 != NULL && gamma_16_from_1 != NULL &&
- gamma_16_to_1 != NULL)
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp += 8)
- {
- png_uint_16 a = (png_uint_16)(((png_uint_16)(*(sp + 6))
- << 8) + (png_uint_16)(*(sp + 7)));
-
- if (a == (png_uint_16)0xffff)
- {
- png_uint_16 v;
-
- v = gamma_16[*(sp + 1) >> gamma_shift][*sp];
- *sp = (png_byte)((v >> 8) & 0xff);
- *(sp + 1) = (png_byte)(v & 0xff);
-
- v = gamma_16[*(sp + 3) >> gamma_shift][*(sp + 2)];
- *(sp + 2) = (png_byte)((v >> 8) & 0xff);
- *(sp + 3) = (png_byte)(v & 0xff);
-
- v = gamma_16[*(sp + 5) >> gamma_shift][*(sp + 4)];
- *(sp + 4) = (png_byte)((v >> 8) & 0xff);
- *(sp + 5) = (png_byte)(v & 0xff);
- }
-
- else if (a == 0)
- {
- /* Background is already in screen gamma */
- *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
- *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
- *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
- & 0xff);
- *(sp + 3) = (png_byte)(png_ptr->background.green
- & 0xff);
- *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
- & 0xff);
- *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
- }
-
- else
- {
- png_uint_16 v, w;
-
- v = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp];
- png_composite_16(w, v, a, png_ptr->background_1.red);
- if (optimize == 0)
- w = gamma_16_from_1[((w & 0xff) >> gamma_shift)][w >>
- 8];
- *sp = (png_byte)((w >> 8) & 0xff);
- *(sp + 1) = (png_byte)(w & 0xff);
-
- v = gamma_16_to_1[*(sp + 3) >> gamma_shift][*(sp + 2)];
- png_composite_16(w, v, a, png_ptr->background_1.green);
- if (optimize == 0)
- w = gamma_16_from_1[((w & 0xff) >> gamma_shift)][w >>
- 8];
-
- *(sp + 2) = (png_byte)((w >> 8) & 0xff);
- *(sp + 3) = (png_byte)(w & 0xff);
-
- v = gamma_16_to_1[*(sp + 5) >> gamma_shift][*(sp + 4)];
- png_composite_16(w, v, a, png_ptr->background_1.blue);
- if (optimize == 0)
- w = gamma_16_from_1[((w & 0xff) >> gamma_shift)][w >>
- 8];
-
- *(sp + 4) = (png_byte)((w >> 8) & 0xff);
- *(sp + 5) = (png_byte)(w & 0xff);
- }
- }
- }
-
- else
-#endif
- {
- sp = row;
- for (i = 0; i < row_width; i++, sp += 8)
- {
- png_uint_16 a = (png_uint_16)(((png_uint_16)(*(sp + 6))
- << 8) + (png_uint_16)(*(sp + 7)));
-
- if (a == 0)
- {
- *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
- *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
- *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
- & 0xff);
- *(sp + 3) = (png_byte)(png_ptr->background.green
- & 0xff);
- *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
- & 0xff);
- *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
- }
-
- else if (a < 0xffff)
- {
- png_uint_16 v;
-
- png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1));
- png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8)
- + *(sp + 3));
- png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8)
- + *(sp + 5));
-
- png_composite_16(v, r, a, png_ptr->background.red);
- *sp = (png_byte)((v >> 8) & 0xff);
- *(sp + 1) = (png_byte)(v & 0xff);
-
- png_composite_16(v, g, a, png_ptr->background.green);
- *(sp + 2) = (png_byte)((v >> 8) & 0xff);
- *(sp + 3) = (png_byte)(v & 0xff);
-
- png_composite_16(v, b, a, png_ptr->background.blue);
- *(sp + 4) = (png_byte)((v >> 8) & 0xff);
- *(sp + 5) = (png_byte)(v & 0xff);
- }
- }
- }
- }
- break;
- }
-
- default:
- break;
- }
-}
-#endif /* READ_BACKGROUND || READ_ALPHA_MODE */
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
-/* Gamma correct the image, avoiding the alpha channel. Make sure
- * you do this after you deal with the transparency issue on grayscale
- * or RGB images. If your bit depth is 8, use gamma_table, if it
- * is 16, use gamma_16_table and gamma_shift. Build these with
- * build_gamma_table().
- */
-static void
-png_do_gamma(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
-{
- png_const_bytep gamma_table = png_ptr->gamma_table;
- png_const_uint_16pp gamma_16_table = png_ptr->gamma_16_table;
- int gamma_shift = png_ptr->gamma_shift;
-
- png_bytep sp;
- png_uint_32 i;
- png_uint_32 row_width=row_info->width;
-
- png_debug(1, "in png_do_gamma");
-
- if (((row_info->bit_depth <= 8 && gamma_table != NULL) ||
- (row_info->bit_depth == 16 && gamma_16_table != NULL)))
- {
- switch (row_info->color_type)
- {
- case PNG_COLOR_TYPE_RGB:
- {
- if (row_info->bit_depth == 8)
- {
- sp = row;
- for (i = 0; i < row_width; i++)
- {
- *sp = gamma_table[*sp];
- sp++;
- *sp = gamma_table[*sp];
- sp++;
- *sp = gamma_table[*sp];
- sp++;
- }
- }
-
- else /* if (row_info->bit_depth == 16) */
- {
- sp = row;
- for (i = 0; i < row_width; i++)
- {
- png_uint_16 v;
-
- v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp];
- *sp = (png_byte)((v >> 8) & 0xff);
- *(sp + 1) = (png_byte)(v & 0xff);
- sp += 2;
-
- v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp];
- *sp = (png_byte)((v >> 8) & 0xff);
- *(sp + 1) = (png_byte)(v & 0xff);
- sp += 2;
-
- v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp];
- *sp = (png_byte)((v >> 8) & 0xff);
- *(sp + 1) = (png_byte)(v & 0xff);
- sp += 2;
- }
- }
- break;
- }
-
- case PNG_COLOR_TYPE_RGB_ALPHA:
- {
- if (row_info->bit_depth == 8)
- {
- sp = row;
- for (i = 0; i < row_width; i++)
- {
- *sp = gamma_table[*sp];
- sp++;
-
- *sp = gamma_table[*sp];
- sp++;
-
- *sp = gamma_table[*sp];
- sp++;
-
- sp++;
- }
- }
-
- else /* if (row_info->bit_depth == 16) */
- {
- sp = row;
- for (i = 0; i < row_width; i++)
- {
- png_uint_16 v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp];
- *sp = (png_byte)((v >> 8) & 0xff);
- *(sp + 1) = (png_byte)(v & 0xff);
- sp += 2;
-
- v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp];
- *sp = (png_byte)((v >> 8) & 0xff);
- *(sp + 1) = (png_byte)(v & 0xff);
- sp += 2;
-
- v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp];
- *sp = (png_byte)((v >> 8) & 0xff);
- *(sp + 1) = (png_byte)(v & 0xff);
- sp += 4;
- }
- }
- break;
- }
-
- case PNG_COLOR_TYPE_GRAY_ALPHA:
- {
- if (row_info->bit_depth == 8)
- {
- sp = row;
- for (i = 0; i < row_width; i++)
- {
- *sp = gamma_table[*sp];
- sp += 2;
- }
- }
-
- else /* if (row_info->bit_depth == 16) */
- {
- sp = row;
- for (i = 0; i < row_width; i++)
- {
- png_uint_16 v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp];
- *sp = (png_byte)((v >> 8) & 0xff);
- *(sp + 1) = (png_byte)(v & 0xff);
- sp += 4;
- }
- }
- break;
- }
-
- case PNG_COLOR_TYPE_GRAY:
- {
- if (row_info->bit_depth == 2)
- {
- sp = row;
- for (i = 0; i < row_width; i += 4)
- {
- int a = *sp & 0xc0;
- int b = *sp & 0x30;
- int c = *sp & 0x0c;
- int d = *sp & 0x03;
-
- *sp = (png_byte)(
- ((((int)gamma_table[a|(a>>2)|(a>>4)|(a>>6)]) ) & 0xc0)|
- ((((int)gamma_table[(b<<2)|b|(b>>2)|(b>>4)])>>2) & 0x30)|
- ((((int)gamma_table[(c<<4)|(c<<2)|c|(c>>2)])>>4) & 0x0c)|
- ((((int)gamma_table[(d<<6)|(d<<4)|(d<<2)|d])>>6) ));
- sp++;
- }
- }
-
- if (row_info->bit_depth == 4)
- {
- sp = row;
- for (i = 0; i < row_width; i += 2)
- {
- int msb = *sp & 0xf0;
- int lsb = *sp & 0x0f;
-
- *sp = (png_byte)((((int)gamma_table[msb | (msb >> 4)]) & 0xf0)
- | (((int)gamma_table[(lsb << 4) | lsb]) >> 4));
- sp++;
- }
- }
-
- else if (row_info->bit_depth == 8)
- {
- sp = row;
- for (i = 0; i < row_width; i++)
- {
- *sp = gamma_table[*sp];
- sp++;
- }
- }
-
- else if (row_info->bit_depth == 16)
- {
- sp = row;
- for (i = 0; i < row_width; i++)
- {
- png_uint_16 v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp];
- *sp = (png_byte)((v >> 8) & 0xff);
- *(sp + 1) = (png_byte)(v & 0xff);
- sp += 2;
- }
- }
- break;
- }
-
- default:
- break;
- }
- }
-}
-#endif
-
-#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
-/* Encode the alpha channel to the output gamma (the input channel is always
- * linear.) Called only with color types that have an alpha channel. Needs the
- * from_1 tables.
- */
-static void
-png_do_encode_alpha(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
-{
- png_uint_32 row_width = row_info->width;
-
- png_debug(1, "in png_do_encode_alpha");
-
- if ((row_info->color_type & PNG_COLOR_MASK_ALPHA) != 0)
- {
- if (row_info->bit_depth == 8)
- {
- png_bytep table = png_ptr->gamma_from_1;
-
- if (table != NULL)
- {
- int step = (row_info->color_type & PNG_COLOR_MASK_COLOR) ? 4 : 2;
-
- /* The alpha channel is the last component: */
- row += step - 1;
-
- for (; row_width > 0; --row_width, row += step)
- *row = table[*row];
-
- return;
- }
- }
-
- else if (row_info->bit_depth == 16)
- {
- png_uint_16pp table = png_ptr->gamma_16_from_1;
- int gamma_shift = png_ptr->gamma_shift;
-
- if (table != NULL)
- {
- int step = (row_info->color_type & PNG_COLOR_MASK_COLOR) ? 8 : 4;
-
- /* The alpha channel is the last component: */
- row += step - 2;
-
- for (; row_width > 0; --row_width, row += step)
- {
- png_uint_16 v;
-
- v = table[*(row + 1) >> gamma_shift][*row];
- *row = (png_byte)((v >> 8) & 0xff);
- *(row + 1) = (png_byte)(v & 0xff);
- }
-
- return;
- }
- }
- }
-
- /* Only get to here if called with a weird row_info; no harm has been done,
- * so just issue a warning.
- */
- png_warning(png_ptr, "png_do_encode_alpha: unexpected call");
-}
-#endif
-
-#ifdef PNG_READ_EXPAND_SUPPORTED
-/* Expands a palette row to an RGB or RGBA row depending
- * upon whether you supply trans and num_trans.
- */
-static void
-png_do_expand_palette(png_structrp png_ptr, png_row_infop row_info,
- png_bytep row, png_const_colorp palette, png_const_bytep trans_alpha,
- int num_trans)
-{
- int shift, value;
- png_bytep sp, dp;
- png_uint_32 i;
- png_uint_32 row_width=row_info->width;
-
- png_debug(1, "in png_do_expand_palette");
-
- if (row_info->color_type == PNG_COLOR_TYPE_PALETTE)
- {
- if (row_info->bit_depth < 8)
- {
- switch (row_info->bit_depth)
- {
- case 1:
- {
- sp = row + (size_t)((row_width - 1) >> 3);
- dp = row + (size_t)row_width - 1;
- shift = 7 - (int)((row_width + 7) & 0x07);
- for (i = 0; i < row_width; i++)
- {
- if ((*sp >> shift) & 0x01)
- *dp = 1;
-
- else
- *dp = 0;
-
- if (shift == 7)
- {
- shift = 0;
- sp--;
- }
-
- else
- shift++;
-
- dp--;
- }
- break;
- }
-
- case 2:
- {
- sp = row + (size_t)((row_width - 1) >> 2);
- dp = row + (size_t)row_width - 1;
- shift = (int)((3 - ((row_width + 3) & 0x03)) << 1);
- for (i = 0; i < row_width; i++)
- {
- value = (*sp >> shift) & 0x03;
- *dp = (png_byte)value;
- if (shift == 6)
- {
- shift = 0;
- sp--;
- }
-
- else
- shift += 2;
-
- dp--;
- }
- break;
- }
-
- case 4:
- {
- sp = row + (size_t)((row_width - 1) >> 1);
- dp = row + (size_t)row_width - 1;
- shift = (int)((row_width & 0x01) << 2);
- for (i = 0; i < row_width; i++)
- {
- value = (*sp >> shift) & 0x0f;
- *dp = (png_byte)value;
- if (shift == 4)
- {
- shift = 0;
- sp--;
- }
-
- else
- shift += 4;
-
- dp--;
- }
- break;
- }
-
- default:
- break;
- }
- row_info->bit_depth = 8;
- row_info->pixel_depth = 8;
- row_info->rowbytes = row_width;
- }
-
- if (row_info->bit_depth == 8)
- {
- {
- if (num_trans > 0)
- {
- sp = row + (size_t)row_width - 1;
- dp = row + ((size_t)row_width << 2) - 1;
-
- i = 0;
-#ifdef PNG_ARM_NEON_INTRINSICS_AVAILABLE
- if (png_ptr->riffled_palette != NULL)
- {
- /* The RGBA optimization works with png_ptr->bit_depth == 8
- * but sometimes row_info->bit_depth has been changed to 8.
- * In these cases, the palette hasn't been riffled.
- */
- i = png_do_expand_palette_rgba8_neon(png_ptr, row_info, row,
- &sp, &dp);
- }
-#else
- PNG_UNUSED(png_ptr)
-#endif
-
- for (; i < row_width; i++)
- {
- if ((int)(*sp) >= num_trans)
- *dp-- = 0xff;
- else
- *dp-- = trans_alpha[*sp];
- *dp-- = palette[*sp].blue;
- *dp-- = palette[*sp].green;
- *dp-- = palette[*sp].red;
- sp--;
- }
- row_info->bit_depth = 8;
- row_info->pixel_depth = 32;
- row_info->rowbytes = row_width * 4;
- row_info->color_type = 6;
- row_info->channels = 4;
- }
-
- else
- {
- sp = row + (size_t)row_width - 1;
- dp = row + (size_t)(row_width * 3) - 1;
- i = 0;
-#ifdef PNG_ARM_NEON_INTRINSICS_AVAILABLE
- i = png_do_expand_palette_rgb8_neon(png_ptr, row_info, row,
- &sp, &dp);
-#else
- PNG_UNUSED(png_ptr)
-#endif
-
- for (; i < row_width; i++)
- {
- *dp-- = palette[*sp].blue;
- *dp-- = palette[*sp].green;
- *dp-- = palette[*sp].red;
- sp--;
- }
-
- row_info->bit_depth = 8;
- row_info->pixel_depth = 24;
- row_info->rowbytes = row_width * 3;
- row_info->color_type = 2;
- row_info->channels = 3;
- }
- }
- }
- }
-}
-
-/* If the bit depth < 8, it is expanded to 8. Also, if the already
- * expanded transparency value is supplied, an alpha channel is built.
- */
-static void
-png_do_expand(png_row_infop row_info, png_bytep row,
- png_const_color_16p trans_color)
-{
- int shift, value;
- png_bytep sp, dp;
- png_uint_32 i;
- png_uint_32 row_width=row_info->width;
-
- png_debug(1, "in png_do_expand");
-
- if (row_info->color_type == PNG_COLOR_TYPE_GRAY)
- {
- unsigned int gray = trans_color != NULL ? trans_color->gray : 0;
-
- if (row_info->bit_depth < 8)
- {
- switch (row_info->bit_depth)
- {
- case 1:
- {
- gray = (gray & 0x01) * 0xff;
- sp = row + (size_t)((row_width - 1) >> 3);
- dp = row + (size_t)row_width - 1;
- shift = 7 - (int)((row_width + 7) & 0x07);
- for (i = 0; i < row_width; i++)
- {
- if ((*sp >> shift) & 0x01)
- *dp = 0xff;
-
- else
- *dp = 0;
-
- if (shift == 7)
- {
- shift = 0;
- sp--;
- }
-
- else
- shift++;
-
- dp--;
- }
- break;
- }
-
- case 2:
- {
- gray = (gray & 0x03) * 0x55;
- sp = row + (size_t)((row_width - 1) >> 2);
- dp = row + (size_t)row_width - 1;
- shift = (int)((3 - ((row_width + 3) & 0x03)) << 1);
- for (i = 0; i < row_width; i++)
- {
- value = (*sp >> shift) & 0x03;
- *dp = (png_byte)(value | (value << 2) | (value << 4) |
- (value << 6));
- if (shift == 6)
- {
- shift = 0;
- sp--;
- }
-
- else
- shift += 2;
-
- dp--;
- }
- break;
- }
-
- case 4:
- {
- gray = (gray & 0x0f) * 0x11;
- sp = row + (size_t)((row_width - 1) >> 1);
- dp = row + (size_t)row_width - 1;
- shift = (int)((1 - ((row_width + 1) & 0x01)) << 2);
- for (i = 0; i < row_width; i++)
- {
- value = (*sp >> shift) & 0x0f;
- *dp = (png_byte)(value | (value << 4));
- if (shift == 4)
- {
- shift = 0;
- sp--;
- }
-
- else
- shift = 4;
-
- dp--;
- }
- break;
- }
-
- default:
- break;
- }
-
- row_info->bit_depth = 8;
- row_info->pixel_depth = 8;
- row_info->rowbytes = row_width;
- }
-
- if (trans_color != NULL)
- {
- if (row_info->bit_depth == 8)
- {
- gray = gray & 0xff;
- sp = row + (size_t)row_width - 1;
- dp = row + ((size_t)row_width << 1) - 1;
-
- for (i = 0; i < row_width; i++)
- {
- if ((*sp & 0xffU) == gray)
- *dp-- = 0;
-
- else
- *dp-- = 0xff;
-
- *dp-- = *sp--;
- }
- }
-
- else if (row_info->bit_depth == 16)
- {
- unsigned int gray_high = (gray >> 8) & 0xff;
- unsigned int gray_low = gray & 0xff;
- sp = row + row_info->rowbytes - 1;
- dp = row + (row_info->rowbytes << 1) - 1;
- for (i = 0; i < row_width; i++)
- {
- if ((*(sp - 1) & 0xffU) == gray_high &&
- (*(sp) & 0xffU) == gray_low)
- {
- *dp-- = 0;
- *dp-- = 0;
- }
-
- else
- {
- *dp-- = 0xff;
- *dp-- = 0xff;
- }
-
- *dp-- = *sp--;
- *dp-- = *sp--;
- }
- }
-
- row_info->color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
- row_info->channels = 2;
- row_info->pixel_depth = (png_byte)(row_info->bit_depth << 1);
- row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,
- row_width);
- }
- }
- else if (row_info->color_type == PNG_COLOR_TYPE_RGB &&
- trans_color != NULL)
- {
- if (row_info->bit_depth == 8)
- {
- png_byte red = (png_byte)(trans_color->red & 0xff);
- png_byte green = (png_byte)(trans_color->green & 0xff);
- png_byte blue = (png_byte)(trans_color->blue & 0xff);
- sp = row + (size_t)row_info->rowbytes - 1;
- dp = row + ((size_t)row_width << 2) - 1;
- for (i = 0; i < row_width; i++)
- {
- if (*(sp - 2) == red && *(sp - 1) == green && *(sp) == blue)
- *dp-- = 0;
-
- else
- *dp-- = 0xff;
-
- *dp-- = *sp--;
- *dp-- = *sp--;
- *dp-- = *sp--;
- }
- }
- else if (row_info->bit_depth == 16)
- {
- png_byte red_high = (png_byte)((trans_color->red >> 8) & 0xff);
- png_byte green_high = (png_byte)((trans_color->green >> 8) & 0xff);
- png_byte blue_high = (png_byte)((trans_color->blue >> 8) & 0xff);
- png_byte red_low = (png_byte)(trans_color->red & 0xff);
- png_byte green_low = (png_byte)(trans_color->green & 0xff);
- png_byte blue_low = (png_byte)(trans_color->blue & 0xff);
- sp = row + row_info->rowbytes - 1;
- dp = row + ((size_t)row_width << 3) - 1;
- for (i = 0; i < row_width; i++)
- {
- if (*(sp - 5) == red_high &&
- *(sp - 4) == red_low &&
- *(sp - 3) == green_high &&
- *(sp - 2) == green_low &&
- *(sp - 1) == blue_high &&
- *(sp ) == blue_low)
- {
- *dp-- = 0;
- *dp-- = 0;
- }
-
- else
- {
- *dp-- = 0xff;
- *dp-- = 0xff;
- }
-
- *dp-- = *sp--;
- *dp-- = *sp--;
- *dp-- = *sp--;
- *dp-- = *sp--;
- *dp-- = *sp--;
- *dp-- = *sp--;
- }
- }
- row_info->color_type = PNG_COLOR_TYPE_RGB_ALPHA;
- row_info->channels = 4;
- row_info->pixel_depth = (png_byte)(row_info->bit_depth << 2);
- row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width);
- }
-}
-#endif
-
-#ifdef PNG_READ_EXPAND_16_SUPPORTED
-/* If the bit depth is 8 and the color type is not a palette type expand the
- * whole row to 16 bits. Has no effect otherwise.
- */
-static void
-png_do_expand_16(png_row_infop row_info, png_bytep row)
-{
- if (row_info->bit_depth == 8 &&
- row_info->color_type != PNG_COLOR_TYPE_PALETTE)
- {
- /* The row have a sequence of bytes containing [0..255] and we need
- * to turn it into another row containing [0..65535], to do this we
- * calculate:
- *
- * (input / 255) * 65535
- *
- * Which happens to be exactly input * 257 and this can be achieved
- * simply by byte replication in place (copying backwards).
- */
- png_byte *sp = row + row_info->rowbytes; /* source, last byte + 1 */
- png_byte *dp = sp + row_info->rowbytes; /* destination, end + 1 */
- while (dp > sp)
- {
- dp[-2] = dp[-1] = *--sp; dp -= 2;
- }
-
- row_info->rowbytes *= 2;
- row_info->bit_depth = 16;
- row_info->pixel_depth = (png_byte)(row_info->channels * 16);
- }
-}
-#endif
-
-#ifdef PNG_READ_QUANTIZE_SUPPORTED
-static void
-png_do_quantize(png_row_infop row_info, png_bytep row,
- png_const_bytep palette_lookup, png_const_bytep quantize_lookup)
-{
- png_bytep sp, dp;
- png_uint_32 i;
- png_uint_32 row_width=row_info->width;
-
- png_debug(1, "in png_do_quantize");
-
- if (row_info->bit_depth == 8)
- {
- if (row_info->color_type == PNG_COLOR_TYPE_RGB && palette_lookup)
- {
- int r, g, b, p;
- sp = row;
- dp = row;
- for (i = 0; i < row_width; i++)
- {
- r = *sp++;
- g = *sp++;
- b = *sp++;
-
- /* This looks real messy, but the compiler will reduce
- * it down to a reasonable formula. For example, with
- * 5 bits per color, we get:
- * p = (((r >> 3) & 0x1f) << 10) |
- * (((g >> 3) & 0x1f) << 5) |
- * ((b >> 3) & 0x1f);
- */
- p = (((r >> (8 - PNG_QUANTIZE_RED_BITS)) &
- ((1 << PNG_QUANTIZE_RED_BITS) - 1)) <<
- (PNG_QUANTIZE_GREEN_BITS + PNG_QUANTIZE_BLUE_BITS)) |
- (((g >> (8 - PNG_QUANTIZE_GREEN_BITS)) &
- ((1 << PNG_QUANTIZE_GREEN_BITS) - 1)) <<
- (PNG_QUANTIZE_BLUE_BITS)) |
- ((b >> (8 - PNG_QUANTIZE_BLUE_BITS)) &
- ((1 << PNG_QUANTIZE_BLUE_BITS) - 1));
-
- *dp++ = palette_lookup[p];
- }
-
- row_info->color_type = PNG_COLOR_TYPE_PALETTE;
- row_info->channels = 1;
- row_info->pixel_depth = row_info->bit_depth;
- row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width);
- }
-
- else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA &&
- palette_lookup != NULL)
- {
- int r, g, b, p;
- sp = row;
- dp = row;
- for (i = 0; i < row_width; i++)
- {
- r = *sp++;
- g = *sp++;
- b = *sp++;
- sp++;
-
- p = (((r >> (8 - PNG_QUANTIZE_RED_BITS)) &
- ((1 << PNG_QUANTIZE_RED_BITS) - 1)) <<
- (PNG_QUANTIZE_GREEN_BITS + PNG_QUANTIZE_BLUE_BITS)) |
- (((g >> (8 - PNG_QUANTIZE_GREEN_BITS)) &
- ((1 << PNG_QUANTIZE_GREEN_BITS) - 1)) <<
- (PNG_QUANTIZE_BLUE_BITS)) |
- ((b >> (8 - PNG_QUANTIZE_BLUE_BITS)) &
- ((1 << PNG_QUANTIZE_BLUE_BITS) - 1));
-
- *dp++ = palette_lookup[p];
- }
-
- row_info->color_type = PNG_COLOR_TYPE_PALETTE;
- row_info->channels = 1;
- row_info->pixel_depth = row_info->bit_depth;
- row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width);
- }
-
- else if (row_info->color_type == PNG_COLOR_TYPE_PALETTE &&
- quantize_lookup)
- {
- sp = row;
-
- for (i = 0; i < row_width; i++, sp++)
- {
- *sp = quantize_lookup[*sp];
- }
- }
- }
-}
-#endif /* READ_QUANTIZE */
-
-/* Transform the row. The order of transformations is significant,
- * and is very touchy. If you add a transformation, take care to
- * decide how it fits in with the other transformations here.
- */
-void /* PRIVATE */
-png_do_read_transformations(png_structrp png_ptr, png_row_infop row_info)
-{
- png_debug(1, "in png_do_read_transformations");
-
- if (png_ptr->row_buf == NULL)
- {
- /* Prior to 1.5.4 this output row/pass where the NULL pointer is, but this
- * error is incredibly rare and incredibly easy to debug without this
- * information.
- */
- png_error(png_ptr, "NULL row buffer");
- }
-
- /* The following is debugging; prior to 1.5.4 the code was never compiled in;
- * in 1.5.4 PNG_FLAG_DETECT_UNINITIALIZED was added and the macro
- * PNG_WARN_UNINITIALIZED_ROW removed. In 1.6 the new flag is set only for
- * all transformations, however in practice the ROW_INIT always gets done on
- * demand, if necessary.
- */
- if ((png_ptr->flags & PNG_FLAG_DETECT_UNINITIALIZED) != 0 &&
- (png_ptr->flags & PNG_FLAG_ROW_INIT) == 0)
- {
- /* Application has failed to call either png_read_start_image() or
- * png_read_update_info() after setting transforms that expand pixels.
- * This check added to libpng-1.2.19 (but not enabled until 1.5.4).
- */
- png_error(png_ptr, "Uninitialized row");
- }
-
-#ifdef PNG_READ_EXPAND_SUPPORTED
- if ((png_ptr->transformations & PNG_EXPAND) != 0)
- {
- if (row_info->color_type == PNG_COLOR_TYPE_PALETTE)
- {
-#ifdef PNG_ARM_NEON_INTRINSICS_AVAILABLE
- if ((png_ptr->num_trans > 0) && (png_ptr->bit_depth == 8))
- {
- if (png_ptr->riffled_palette == NULL)
- {
- /* Initialize the accelerated palette expansion. */
- png_ptr->riffled_palette =
- (png_bytep)png_malloc(png_ptr, 256 * 4);
- png_riffle_palette_neon(png_ptr);
- }
- }
-#endif
- png_do_expand_palette(png_ptr, row_info, png_ptr->row_buf + 1,
- png_ptr->palette, png_ptr->trans_alpha, png_ptr->num_trans);
- }
-
- else
- {
- if (png_ptr->num_trans != 0 &&
- (png_ptr->transformations & PNG_EXPAND_tRNS) != 0)
- png_do_expand(row_info, png_ptr->row_buf + 1,
- &(png_ptr->trans_color));
-
- else
- png_do_expand(row_info, png_ptr->row_buf + 1, NULL);
- }
- }
-#endif
-
-#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
- if ((png_ptr->transformations & PNG_STRIP_ALPHA) != 0 &&
- (png_ptr->transformations & PNG_COMPOSE) == 0 &&
- (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
- row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
- png_do_strip_channel(row_info, png_ptr->row_buf + 1,
- 0 /* at_start == false, because SWAP_ALPHA happens later */);
-#endif
-
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
- if ((png_ptr->transformations & PNG_RGB_TO_GRAY) != 0)
- {
- int rgb_error =
- png_do_rgb_to_gray(png_ptr, row_info,
- png_ptr->row_buf + 1);
-
- if (rgb_error != 0)
- {
- png_ptr->rgb_to_gray_status=1;
- if ((png_ptr->transformations & PNG_RGB_TO_GRAY) ==
- PNG_RGB_TO_GRAY_WARN)
- png_warning(png_ptr, "png_do_rgb_to_gray found nongray pixel");
-
- if ((png_ptr->transformations & PNG_RGB_TO_GRAY) ==
- PNG_RGB_TO_GRAY_ERR)
- png_error(png_ptr, "png_do_rgb_to_gray found nongray pixel");
- }
- }
-#endif
-
-/* From Andreas Dilger e-mail to png-implement, 26 March 1998:
- *
- * In most cases, the "simple transparency" should be done prior to doing
- * gray-to-RGB, or you will have to test 3x as many bytes to check if a
- * pixel is transparent. You would also need to make sure that the
- * transparency information is upgraded to RGB.
- *
- * To summarize, the current flow is:
- * - Gray + simple transparency -> compare 1 or 2 gray bytes and composite
- * with background "in place" if transparent,
- * convert to RGB if necessary
- * - Gray + alpha -> composite with gray background and remove alpha bytes,
- * convert to RGB if necessary
- *
- * To support RGB backgrounds for gray images we need:
- * - Gray + simple transparency -> convert to RGB + simple transparency,
- * compare 3 or 6 bytes and composite with
- * background "in place" if transparent
- * (3x compare/pixel compared to doing
- * composite with gray bkgrnd)
- * - Gray + alpha -> convert to RGB + alpha, composite with background and
- * remove alpha bytes (3x float
- * operations/pixel compared with composite
- * on gray background)
- *
- * Greg's change will do this. The reason it wasn't done before is for
- * performance, as this increases the per-pixel operations. If we would check
- * in advance if the background was gray or RGB, and position the gray-to-RGB
- * transform appropriately, then it would save a lot of work/time.
- */
-
-#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
- /* If gray -> RGB, do so now only if background is non-gray; else do later
- * for performance reasons
- */
- if ((png_ptr->transformations & PNG_GRAY_TO_RGB) != 0 &&
- (png_ptr->mode & PNG_BACKGROUND_IS_GRAY) == 0)
- png_do_gray_to_rgb(row_info, png_ptr->row_buf + 1);
-#endif
-
-#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
- defined(PNG_READ_ALPHA_MODE_SUPPORTED)
- if ((png_ptr->transformations & PNG_COMPOSE) != 0)
- png_do_compose(row_info, png_ptr->row_buf + 1, png_ptr);
-#endif
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
- if ((png_ptr->transformations & PNG_GAMMA) != 0 &&
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
- /* Because RGB_TO_GRAY does the gamma transform. */
- (png_ptr->transformations & PNG_RGB_TO_GRAY) == 0 &&
-#endif
-#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
- defined(PNG_READ_ALPHA_MODE_SUPPORTED)
- /* Because PNG_COMPOSE does the gamma transform if there is something to
- * do (if there is an alpha channel or transparency.)
- */
- !((png_ptr->transformations & PNG_COMPOSE) != 0 &&
- ((png_ptr->num_trans != 0) ||
- (png_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0)) &&
-#endif
- /* Because png_init_read_transformations transforms the palette, unless
- * RGB_TO_GRAY will do the transform.
- */
- (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE))
- png_do_gamma(row_info, png_ptr->row_buf + 1, png_ptr);
-#endif
-
-#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
- if ((png_ptr->transformations & PNG_STRIP_ALPHA) != 0 &&
- (png_ptr->transformations & PNG_COMPOSE) != 0 &&
- (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
- row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
- png_do_strip_channel(row_info, png_ptr->row_buf + 1,
- 0 /* at_start == false, because SWAP_ALPHA happens later */);
-#endif
-
-#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
- if ((png_ptr->transformations & PNG_ENCODE_ALPHA) != 0 &&
- (row_info->color_type & PNG_COLOR_MASK_ALPHA) != 0)
- png_do_encode_alpha(row_info, png_ptr->row_buf + 1, png_ptr);
-#endif
-
-#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
- if ((png_ptr->transformations & PNG_SCALE_16_TO_8) != 0)
- png_do_scale_16_to_8(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
- /* There is no harm in doing both of these because only one has any effect,
- * by putting the 'scale' option first if the app asks for scale (either by
- * calling the API or in a TRANSFORM flag) this is what happens.
- */
- if ((png_ptr->transformations & PNG_16_TO_8) != 0)
- png_do_chop(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_QUANTIZE_SUPPORTED
- if ((png_ptr->transformations & PNG_QUANTIZE) != 0)
- {
- png_do_quantize(row_info, png_ptr->row_buf + 1,
- png_ptr->palette_lookup, png_ptr->quantize_index);
-
- if (row_info->rowbytes == 0)
- png_error(png_ptr, "png_do_quantize returned rowbytes=0");
- }
-#endif /* READ_QUANTIZE */
-
-#ifdef PNG_READ_EXPAND_16_SUPPORTED
- /* Do the expansion now, after all the arithmetic has been done. Notice
- * that previous transformations can handle the PNG_EXPAND_16 flag if this
- * is efficient (particularly true in the case of gamma correction, where
- * better accuracy results faster!)
- */
- if ((png_ptr->transformations & PNG_EXPAND_16) != 0)
- png_do_expand_16(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
- /* NOTE: moved here in 1.5.4 (from much later in this list.) */
- if ((png_ptr->transformations & PNG_GRAY_TO_RGB) != 0 &&
- (png_ptr->mode & PNG_BACKGROUND_IS_GRAY) != 0)
- png_do_gray_to_rgb(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_INVERT_SUPPORTED
- if ((png_ptr->transformations & PNG_INVERT_MONO) != 0)
- png_do_invert(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
- if ((png_ptr->transformations & PNG_INVERT_ALPHA) != 0)
- png_do_read_invert_alpha(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_SHIFT_SUPPORTED
- if ((png_ptr->transformations & PNG_SHIFT) != 0)
- png_do_unshift(row_info, png_ptr->row_buf + 1,
- &(png_ptr->shift));
-#endif
-
-#ifdef PNG_READ_PACK_SUPPORTED
- if ((png_ptr->transformations & PNG_PACK) != 0)
- png_do_unpack(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
- /* Added at libpng-1.5.10 */
- if (row_info->color_type == PNG_COLOR_TYPE_PALETTE &&
- png_ptr->num_palette_max >= 0)
- png_do_check_palette_indexes(png_ptr, row_info);
-#endif
-
-#ifdef PNG_READ_BGR_SUPPORTED
- if ((png_ptr->transformations & PNG_BGR) != 0)
- png_do_bgr(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_PACKSWAP_SUPPORTED
- if ((png_ptr->transformations & PNG_PACKSWAP) != 0)
- png_do_packswap(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_FILLER_SUPPORTED
- if ((png_ptr->transformations & PNG_FILLER) != 0)
- png_do_read_filler(row_info, png_ptr->row_buf + 1,
- (png_uint_32)png_ptr->filler, png_ptr->flags);
-#endif
-
-#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED
- if ((png_ptr->transformations & PNG_SWAP_ALPHA) != 0)
- png_do_read_swap_alpha(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_16BIT_SUPPORTED
-#ifdef PNG_READ_SWAP_SUPPORTED
- if ((png_ptr->transformations & PNG_SWAP_BYTES) != 0)
- png_do_swap(row_info, png_ptr->row_buf + 1);
-#endif
-#endif
-
-#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
- if ((png_ptr->transformations & PNG_USER_TRANSFORM) != 0)
- {
- if (png_ptr->read_user_transform_fn != NULL)
- (*(png_ptr->read_user_transform_fn)) /* User read transform function */
- (png_ptr, /* png_ptr */
- row_info, /* row_info: */
- /* png_uint_32 width; width of row */
- /* size_t rowbytes; number of bytes in row */
- /* png_byte color_type; color type of pixels */
- /* png_byte bit_depth; bit depth of samples */
- /* png_byte channels; number of channels (1-4) */
- /* png_byte pixel_depth; bits per pixel (depth*channels) */
- png_ptr->row_buf + 1); /* start of pixel data for row */
-#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED
- if (png_ptr->user_transform_depth != 0)
- row_info->bit_depth = png_ptr->user_transform_depth;
-
- if (png_ptr->user_transform_channels != 0)
- row_info->channels = png_ptr->user_transform_channels;
-#endif
- row_info->pixel_depth = (png_byte)(row_info->bit_depth *
- row_info->channels);
-
- row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_info->width);
- }
-#endif
-}
-
-#endif /* READ_TRANSFORMS */
-#endif /* READ */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngrtran.lo b/3rdparty/libpng/libpng-1.6.37/pngrtran.lo
deleted file mode 100644
index 4dc0c57..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngrtran.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# pngrtran.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/pngrtran.o'
-
-# Name of the non-PIC object
-non_pic_object='pngrtran.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/pngrtran.o b/3rdparty/libpng/libpng-1.6.37/pngrtran.o
deleted file mode 100644
index c6efedd..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngrtran.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngrutil.c b/3rdparty/libpng/libpng-1.6.37/pngrutil.c
deleted file mode 100644
index d5fa08c..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngrutil.c
+++ /dev/null
@@ -1,4681 +0,0 @@
-
-/* pngrutil.c - utilities to read a PNG file
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * This file contains routines that are only called from within
- * libpng itself during the course of reading an image.
- */
-
-#include "pngpriv.h"
-
-#ifdef PNG_READ_SUPPORTED
-
-png_uint_32 PNGAPI
-png_get_uint_31(png_const_structrp png_ptr, png_const_bytep buf)
-{
- png_uint_32 uval = png_get_uint_32(buf);
-
- if (uval > PNG_UINT_31_MAX)
- png_error(png_ptr, "PNG unsigned integer out of range");
-
- return (uval);
-}
-
-#if defined(PNG_READ_gAMA_SUPPORTED) || defined(PNG_READ_cHRM_SUPPORTED)
-/* The following is a variation on the above for use with the fixed
- * point values used for gAMA and cHRM. Instead of png_error it
- * issues a warning and returns (-1) - an invalid value because both
- * gAMA and cHRM use *unsigned* integers for fixed point values.
- */
-#define PNG_FIXED_ERROR (-1)
-
-static png_fixed_point /* PRIVATE */
-png_get_fixed_point(png_structrp png_ptr, png_const_bytep buf)
-{
- png_uint_32 uval = png_get_uint_32(buf);
-
- if (uval <= PNG_UINT_31_MAX)
- return (png_fixed_point)uval; /* known to be in range */
-
- /* The caller can turn off the warning by passing NULL. */
- if (png_ptr != NULL)
- png_warning(png_ptr, "PNG fixed point integer out of range");
-
- return PNG_FIXED_ERROR;
-}
-#endif
-
-#ifdef PNG_READ_INT_FUNCTIONS_SUPPORTED
-/* NOTE: the read macros will obscure these definitions, so that if
- * PNG_USE_READ_MACROS is set the library will not use them internally,
- * but the APIs will still be available externally.
- *
- * The parentheses around "PNGAPI function_name" in the following three
- * functions are necessary because they allow the macros to co-exist with
- * these (unused but exported) functions.
- */
-
-/* Grab an unsigned 32-bit integer from a buffer in big-endian format. */
-png_uint_32 (PNGAPI
-png_get_uint_32)(png_const_bytep buf)
-{
- png_uint_32 uval =
- ((png_uint_32)(*(buf )) << 24) +
- ((png_uint_32)(*(buf + 1)) << 16) +
- ((png_uint_32)(*(buf + 2)) << 8) +
- ((png_uint_32)(*(buf + 3)) ) ;
-
- return uval;
-}
-
-/* Grab a signed 32-bit integer from a buffer in big-endian format. The
- * data is stored in the PNG file in two's complement format and there
- * is no guarantee that a 'png_int_32' is exactly 32 bits, therefore
- * the following code does a two's complement to native conversion.
- */
-png_int_32 (PNGAPI
-png_get_int_32)(png_const_bytep buf)
-{
- png_uint_32 uval = png_get_uint_32(buf);
- if ((uval & 0x80000000) == 0) /* non-negative */
- return (png_int_32)uval;
-
- uval = (uval ^ 0xffffffff) + 1; /* 2's complement: -x = ~x+1 */
- if ((uval & 0x80000000) == 0) /* no overflow */
- return -(png_int_32)uval;
- /* The following has to be safe; this function only gets called on PNG data
- * and if we get here that data is invalid. 0 is the most safe value and
- * if not then an attacker would surely just generate a PNG with 0 instead.
- */
- return 0;
-}
-
-/* Grab an unsigned 16-bit integer from a buffer in big-endian format. */
-png_uint_16 (PNGAPI
-png_get_uint_16)(png_const_bytep buf)
-{
- /* ANSI-C requires an int value to accommodate at least 16 bits so this
- * works and allows the compiler not to worry about possible narrowing
- * on 32-bit systems. (Pre-ANSI systems did not make integers smaller
- * than 16 bits either.)
- */
- unsigned int val =
- ((unsigned int)(*buf) << 8) +
- ((unsigned int)(*(buf + 1)));
-
- return (png_uint_16)val;
-}
-
-#endif /* READ_INT_FUNCTIONS */
-
-/* Read and check the PNG file signature */
-void /* PRIVATE */
-png_read_sig(png_structrp png_ptr, png_inforp info_ptr)
-{
- size_t num_checked, num_to_check;
-
- /* Exit if the user application does not expect a signature. */
- if (png_ptr->sig_bytes >= 8)
- return;
-
- num_checked = png_ptr->sig_bytes;
- num_to_check = 8 - num_checked;
-
-#ifdef PNG_IO_STATE_SUPPORTED
- png_ptr->io_state = PNG_IO_READING | PNG_IO_SIGNATURE;
-#endif
-
- /* The signature must be serialized in a single I/O call. */
- png_read_data(png_ptr, &(info_ptr->signature[num_checked]), num_to_check);
- png_ptr->sig_bytes = 8;
-
- if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check) != 0)
- {
- if (num_checked < 4 &&
- png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4))
- png_error(png_ptr, "Not a PNG file");
- else
- png_error(png_ptr, "PNG file corrupted by ASCII conversion");
- }
- if (num_checked < 3)
- png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE;
-}
-
-/* Read the chunk header (length + type name).
- * Put the type name into png_ptr->chunk_name, and return the length.
- */
-png_uint_32 /* PRIVATE */
-png_read_chunk_header(png_structrp png_ptr)
-{
- png_byte buf[8];
- png_uint_32 length;
-
-#ifdef PNG_IO_STATE_SUPPORTED
- png_ptr->io_state = PNG_IO_READING | PNG_IO_CHUNK_HDR;
-#endif
-
- /* Read the length and the chunk name.
- * This must be performed in a single I/O call.
- */
- png_read_data(png_ptr, buf, 8);
- length = png_get_uint_31(png_ptr, buf);
-
- /* Put the chunk name into png_ptr->chunk_name. */
- png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(buf+4);
-
- png_debug2(0, "Reading %lx chunk, length = %lu",
- (unsigned long)png_ptr->chunk_name, (unsigned long)length);
-
- /* Reset the crc and run it over the chunk name. */
- png_reset_crc(png_ptr);
- png_calculate_crc(png_ptr, buf + 4, 4);
-
- /* Check to see if chunk name is valid. */
- png_check_chunk_name(png_ptr, png_ptr->chunk_name);
-
- /* Check for too-large chunk length */
- png_check_chunk_length(png_ptr, length);
-
-#ifdef PNG_IO_STATE_SUPPORTED
- png_ptr->io_state = PNG_IO_READING | PNG_IO_CHUNK_DATA;
-#endif
-
- return length;
-}
-
-/* Read data, and (optionally) run it through the CRC. */
-void /* PRIVATE */
-png_crc_read(png_structrp png_ptr, png_bytep buf, png_uint_32 length)
-{
- if (png_ptr == NULL)
- return;
-
- png_read_data(png_ptr, buf, length);
- png_calculate_crc(png_ptr, buf, length);
-}
-
-/* Optionally skip data and then check the CRC. Depending on whether we
- * are reading an ancillary or critical chunk, and how the program has set
- * things up, we may calculate the CRC on the data and print a message.
- * Returns '1' if there was a CRC error, '0' otherwise.
- */
-int /* PRIVATE */
-png_crc_finish(png_structrp png_ptr, png_uint_32 skip)
-{
- /* The size of the local buffer for inflate is a good guess as to a
- * reasonable size to use for buffering reads from the application.
- */
- while (skip > 0)
- {
- png_uint_32 len;
- png_byte tmpbuf[PNG_INFLATE_BUF_SIZE];
-
- len = (sizeof tmpbuf);
- if (len > skip)
- len = skip;
- skip -= len;
-
- png_crc_read(png_ptr, tmpbuf, len);
- }
-
- if (png_crc_error(png_ptr) != 0)
- {
- if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name) != 0 ?
- (png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN) == 0 :
- (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_USE) != 0)
- {
- png_chunk_warning(png_ptr, "CRC error");
- }
-
- else
- png_chunk_error(png_ptr, "CRC error");
-
- return (1);
- }
-
- return (0);
-}
-
-/* Compare the CRC stored in the PNG file with that calculated by libpng from
- * the data it has read thus far.
- */
-int /* PRIVATE */
-png_crc_error(png_structrp png_ptr)
-{
- png_byte crc_bytes[4];
- png_uint_32 crc;
- int need_crc = 1;
-
- if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name) != 0)
- {
- if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) ==
- (PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN))
- need_crc = 0;
- }
-
- else /* critical */
- {
- if ((png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE) != 0)
- need_crc = 0;
- }
-
-#ifdef PNG_IO_STATE_SUPPORTED
- png_ptr->io_state = PNG_IO_READING | PNG_IO_CHUNK_CRC;
-#endif
-
- /* The chunk CRC must be serialized in a single I/O call. */
- png_read_data(png_ptr, crc_bytes, 4);
-
- if (need_crc != 0)
- {
- crc = png_get_uint_32(crc_bytes);
- return ((int)(crc != png_ptr->crc));
- }
-
- else
- return (0);
-}
-
-#if defined(PNG_READ_iCCP_SUPPORTED) || defined(PNG_READ_iTXt_SUPPORTED) ||\
- defined(PNG_READ_pCAL_SUPPORTED) || defined(PNG_READ_sCAL_SUPPORTED) ||\
- defined(PNG_READ_sPLT_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) ||\
- defined(PNG_READ_zTXt_SUPPORTED) || defined(PNG_SEQUENTIAL_READ_SUPPORTED)
-/* Manage the read buffer; this simply reallocates the buffer if it is not small
- * enough (or if it is not allocated). The routine returns a pointer to the
- * buffer; if an error occurs and 'warn' is set the routine returns NULL, else
- * it will call png_error (via png_malloc) on failure. (warn == 2 means
- * 'silent').
- */
-static png_bytep
-png_read_buffer(png_structrp png_ptr, png_alloc_size_t new_size, int warn)
-{
- png_bytep buffer = png_ptr->read_buffer;
-
- if (buffer != NULL && new_size > png_ptr->read_buffer_size)
- {
- png_ptr->read_buffer = NULL;
- png_ptr->read_buffer = NULL;
- png_ptr->read_buffer_size = 0;
- png_free(png_ptr, buffer);
- buffer = NULL;
- }
-
- if (buffer == NULL)
- {
- buffer = png_voidcast(png_bytep, png_malloc_base(png_ptr, new_size));
-
- if (buffer != NULL)
- {
- memset(buffer, 0, new_size); /* just in case */
- png_ptr->read_buffer = buffer;
- png_ptr->read_buffer_size = new_size;
- }
-
- else if (warn < 2) /* else silent */
- {
- if (warn != 0)
- png_chunk_warning(png_ptr, "insufficient memory to read chunk");
-
- else
- png_chunk_error(png_ptr, "insufficient memory to read chunk");
- }
- }
-
- return buffer;
-}
-#endif /* READ_iCCP|iTXt|pCAL|sCAL|sPLT|tEXt|zTXt|SEQUENTIAL_READ */
-
-/* png_inflate_claim: claim the zstream for some nefarious purpose that involves
- * decompression. Returns Z_OK on success, else a zlib error code. It checks
- * the owner but, in final release builds, just issues a warning if some other
- * chunk apparently owns the stream. Prior to release it does a png_error.
- */
-static int
-png_inflate_claim(png_structrp png_ptr, png_uint_32 owner)
-{
- if (png_ptr->zowner != 0)
- {
- char msg[64];
-
- PNG_STRING_FROM_CHUNK(msg, png_ptr->zowner);
- /* So the message that results is "<chunk> using zstream"; this is an
- * internal error, but is very useful for debugging. i18n requirements
- * are minimal.
- */
- (void)png_safecat(msg, (sizeof msg), 4, " using zstream");
-#if PNG_RELEASE_BUILD
- png_chunk_warning(png_ptr, msg);
- png_ptr->zowner = 0;
-#else
- png_chunk_error(png_ptr, msg);
-#endif
- }
-
- /* Implementation note: unlike 'png_deflate_claim' this internal function
- * does not take the size of the data as an argument. Some efficiency could
- * be gained by using this when it is known *if* the zlib stream itself does
- * not record the number; however, this is an illusion: the original writer
- * of the PNG may have selected a lower window size, and we really must
- * follow that because, for systems with with limited capabilities, we
- * would otherwise reject the application's attempts to use a smaller window
- * size (zlib doesn't have an interface to say "this or lower"!).
- *
- * inflateReset2 was added to zlib 1.2.4; before this the window could not be
- * reset, therefore it is necessary to always allocate the maximum window
- * size with earlier zlibs just in case later compressed chunks need it.
- */
- {
- int ret; /* zlib return code */
-#if ZLIB_VERNUM >= 0x1240
- int window_bits = 0;
-
-# if defined(PNG_SET_OPTION_SUPPORTED) && defined(PNG_MAXIMUM_INFLATE_WINDOW)
- if (((png_ptr->options >> PNG_MAXIMUM_INFLATE_WINDOW) & 3) ==
- PNG_OPTION_ON)
- {
- window_bits = 15;
- png_ptr->zstream_start = 0; /* fixed window size */
- }
-
- else
- {
- png_ptr->zstream_start = 1;
- }
-# endif
-
-#endif /* ZLIB_VERNUM >= 0x1240 */
-
- /* Set this for safety, just in case the previous owner left pointers to
- * memory allocations.
- */
- png_ptr->zstream.next_in = NULL;
- png_ptr->zstream.avail_in = 0;
- png_ptr->zstream.next_out = NULL;
- png_ptr->zstream.avail_out = 0;
-
- if ((png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) != 0)
- {
-#if ZLIB_VERNUM >= 0x1240
- ret = inflateReset2(&png_ptr->zstream, window_bits);
-#else
- ret = inflateReset(&png_ptr->zstream);
-#endif
- }
-
- else
- {
-#if ZLIB_VERNUM >= 0x1240
- ret = inflateInit2(&png_ptr->zstream, window_bits);
-#else
- ret = inflateInit(&png_ptr->zstream);
-#endif
-
- if (ret == Z_OK)
- png_ptr->flags |= PNG_FLAG_ZSTREAM_INITIALIZED;
- }
-
-#if ZLIB_VERNUM >= 0x1290 && \
- defined(PNG_SET_OPTION_SUPPORTED) && defined(PNG_IGNORE_ADLER32)
- if (((png_ptr->options >> PNG_IGNORE_ADLER32) & 3) == PNG_OPTION_ON)
- /* Turn off validation of the ADLER32 checksum in IDAT chunks */
- ret = inflateValidate(&png_ptr->zstream, 0);
-#endif
-
- if (ret == Z_OK)
- png_ptr->zowner = owner;
-
- else
- png_zstream_error(png_ptr, ret);
-
- return ret;
- }
-
-#ifdef window_bits
-# undef window_bits
-#endif
-}
-
-#if ZLIB_VERNUM >= 0x1240
-/* Handle the start of the inflate stream if we called inflateInit2(strm,0);
- * in this case some zlib versions skip validation of the CINFO field and, in
- * certain circumstances, libpng may end up displaying an invalid image, in
- * contrast to implementations that call zlib in the normal way (e.g. libpng
- * 1.5).
- */
-int /* PRIVATE */
-png_zlib_inflate(png_structrp png_ptr, int flush)
-{
- if (png_ptr->zstream_start && png_ptr->zstream.avail_in > 0)
- {
- if ((*png_ptr->zstream.next_in >> 4) > 7)
- {
- png_ptr->zstream.msg = "invalid window size (libpng)";
- return Z_DATA_ERROR;
- }
-
- png_ptr->zstream_start = 0;
- }
-
- return inflate(&png_ptr->zstream, flush);
-}
-#endif /* Zlib >= 1.2.4 */
-
-#ifdef PNG_READ_COMPRESSED_TEXT_SUPPORTED
-#if defined(PNG_READ_zTXt_SUPPORTED) || defined (PNG_READ_iTXt_SUPPORTED)
-/* png_inflate now returns zlib error codes including Z_OK and Z_STREAM_END to
- * allow the caller to do multiple calls if required. If the 'finish' flag is
- * set Z_FINISH will be passed to the final inflate() call and Z_STREAM_END must
- * be returned or there has been a problem, otherwise Z_SYNC_FLUSH is used and
- * Z_OK or Z_STREAM_END will be returned on success.
- *
- * The input and output sizes are updated to the actual amounts of data consumed
- * or written, not the amount available (as in a z_stream). The data pointers
- * are not changed, so the next input is (data+input_size) and the next
- * available output is (output+output_size).
- */
-static int
-png_inflate(png_structrp png_ptr, png_uint_32 owner, int finish,
- /* INPUT: */ png_const_bytep input, png_uint_32p input_size_ptr,
- /* OUTPUT: */ png_bytep output, png_alloc_size_t *output_size_ptr)
-{
- if (png_ptr->zowner == owner) /* Else not claimed */
- {
- int ret;
- png_alloc_size_t avail_out = *output_size_ptr;
- png_uint_32 avail_in = *input_size_ptr;
-
- /* zlib can't necessarily handle more than 65535 bytes at once (i.e. it
- * can't even necessarily handle 65536 bytes) because the type uInt is
- * "16 bits or more". Consequently it is necessary to chunk the input to
- * zlib. This code uses ZLIB_IO_MAX, from pngpriv.h, as the maximum (the
- * maximum value that can be stored in a uInt.) It is possible to set
- * ZLIB_IO_MAX to a lower value in pngpriv.h and this may sometimes have
- * a performance advantage, because it reduces the amount of data accessed
- * at each step and that may give the OS more time to page it in.
- */
- png_ptr->zstream.next_in = PNGZ_INPUT_CAST(input);
- /* avail_in and avail_out are set below from 'size' */
- png_ptr->zstream.avail_in = 0;
- png_ptr->zstream.avail_out = 0;
-
- /* Read directly into the output if it is available (this is set to
- * a local buffer below if output is NULL).
- */
- if (output != NULL)
- png_ptr->zstream.next_out = output;
-
- do
- {
- uInt avail;
- Byte local_buffer[PNG_INFLATE_BUF_SIZE];
-
- /* zlib INPUT BUFFER */
- /* The setting of 'avail_in' used to be outside the loop; by setting it
- * inside it is possible to chunk the input to zlib and simply rely on
- * zlib to advance the 'next_in' pointer. This allows arbitrary
- * amounts of data to be passed through zlib at the unavoidable cost of
- * requiring a window save (memcpy of up to 32768 output bytes)
- * every ZLIB_IO_MAX input bytes.
- */
- avail_in += png_ptr->zstream.avail_in; /* not consumed last time */
-
- avail = ZLIB_IO_MAX;
-
- if (avail_in < avail)
- avail = (uInt)avail_in; /* safe: < than ZLIB_IO_MAX */
-
- avail_in -= avail;
- png_ptr->zstream.avail_in = avail;
-
- /* zlib OUTPUT BUFFER */
- avail_out += png_ptr->zstream.avail_out; /* not written last time */
-
- avail = ZLIB_IO_MAX; /* maximum zlib can process */
-
- if (output == NULL)
- {
- /* Reset the output buffer each time round if output is NULL and
- * make available the full buffer, up to 'remaining_space'
- */
- png_ptr->zstream.next_out = local_buffer;
- if ((sizeof local_buffer) < avail)
- avail = (sizeof local_buffer);
- }
-
- if (avail_out < avail)
- avail = (uInt)avail_out; /* safe: < ZLIB_IO_MAX */
-
- png_ptr->zstream.avail_out = avail;
- avail_out -= avail;
-
- /* zlib inflate call */
- /* In fact 'avail_out' may be 0 at this point, that happens at the end
- * of the read when the final LZ end code was not passed at the end of
- * the previous chunk of input data. Tell zlib if we have reached the
- * end of the output buffer.
- */
- ret = PNG_INFLATE(png_ptr, avail_out > 0 ? Z_NO_FLUSH :
- (finish ? Z_FINISH : Z_SYNC_FLUSH));
- } while (ret == Z_OK);
-
- /* For safety kill the local buffer pointer now */
- if (output == NULL)
- png_ptr->zstream.next_out = NULL;
-
- /* Claw back the 'size' and 'remaining_space' byte counts. */
- avail_in += png_ptr->zstream.avail_in;
- avail_out += png_ptr->zstream.avail_out;
-
- /* Update the input and output sizes; the updated values are the amount
- * consumed or written, effectively the inverse of what zlib uses.
- */
- if (avail_out > 0)
- *output_size_ptr -= avail_out;
-
- if (avail_in > 0)
- *input_size_ptr -= avail_in;
-
- /* Ensure png_ptr->zstream.msg is set (even in the success case!) */
- png_zstream_error(png_ptr, ret);
- return ret;
- }
-
- else
- {
- /* This is a bad internal error. The recovery assigns to the zstream msg
- * pointer, which is not owned by the caller, but this is safe; it's only
- * used on errors!
- */
- png_ptr->zstream.msg = PNGZ_MSG_CAST("zstream unclaimed");
- return Z_STREAM_ERROR;
- }
-}
-
-/*
- * Decompress trailing data in a chunk. The assumption is that read_buffer
- * points at an allocated area holding the contents of a chunk with a
- * trailing compressed part. What we get back is an allocated area
- * holding the original prefix part and an uncompressed version of the
- * trailing part (the malloc area passed in is freed).
- */
-static int
-png_decompress_chunk(png_structrp png_ptr,
- png_uint_32 chunklength, png_uint_32 prefix_size,
- png_alloc_size_t *newlength /* must be initialized to the maximum! */,
- int terminate /*add a '\0' to the end of the uncompressed data*/)
-{
- /* TODO: implement different limits for different types of chunk.
- *
- * The caller supplies *newlength set to the maximum length of the
- * uncompressed data, but this routine allocates space for the prefix and
- * maybe a '\0' terminator too. We have to assume that 'prefix_size' is
- * limited only by the maximum chunk size.
- */
- png_alloc_size_t limit = PNG_SIZE_MAX;
-
-# ifdef PNG_SET_USER_LIMITS_SUPPORTED
- if (png_ptr->user_chunk_malloc_max > 0 &&
- png_ptr->user_chunk_malloc_max < limit)
- limit = png_ptr->user_chunk_malloc_max;
-# elif PNG_USER_CHUNK_MALLOC_MAX > 0
- if (PNG_USER_CHUNK_MALLOC_MAX < limit)
- limit = PNG_USER_CHUNK_MALLOC_MAX;
-# endif
-
- if (limit >= prefix_size + (terminate != 0))
- {
- int ret;
-
- limit -= prefix_size + (terminate != 0);
-
- if (limit < *newlength)
- *newlength = limit;
-
- /* Now try to claim the stream. */
- ret = png_inflate_claim(png_ptr, png_ptr->chunk_name);
-
- if (ret == Z_OK)
- {
- png_uint_32 lzsize = chunklength - prefix_size;
-
- ret = png_inflate(png_ptr, png_ptr->chunk_name, 1/*finish*/,
- /* input: */ png_ptr->read_buffer + prefix_size, &lzsize,
- /* output: */ NULL, newlength);
-
- if (ret == Z_STREAM_END)
- {
- /* Use 'inflateReset' here, not 'inflateReset2' because this
- * preserves the previously decided window size (otherwise it would
- * be necessary to store the previous window size.) In practice
- * this doesn't matter anyway, because png_inflate will call inflate
- * with Z_FINISH in almost all cases, so the window will not be
- * maintained.
- */
- if (inflateReset(&png_ptr->zstream) == Z_OK)
- {
- /* Because of the limit checks above we know that the new,
- * expanded, size will fit in a size_t (let alone an
- * png_alloc_size_t). Use png_malloc_base here to avoid an
- * extra OOM message.
- */
- png_alloc_size_t new_size = *newlength;
- png_alloc_size_t buffer_size = prefix_size + new_size +
- (terminate != 0);
- png_bytep text = png_voidcast(png_bytep, png_malloc_base(png_ptr,
- buffer_size));
-
- if (text != NULL)
- {
- memset(text, 0, buffer_size);
-
- ret = png_inflate(png_ptr, png_ptr->chunk_name, 1/*finish*/,
- png_ptr->read_buffer + prefix_size, &lzsize,
- text + prefix_size, newlength);
-
- if (ret == Z_STREAM_END)
- {
- if (new_size == *newlength)
- {
- if (terminate != 0)
- text[prefix_size + *newlength] = 0;
-
- if (prefix_size > 0)
- memcpy(text, png_ptr->read_buffer, prefix_size);
-
- {
- png_bytep old_ptr = png_ptr->read_buffer;
-
- png_ptr->read_buffer = text;
- png_ptr->read_buffer_size = buffer_size;
- text = old_ptr; /* freed below */
- }
- }
-
- else
- {
- /* The size changed on the second read, there can be no
- * guarantee that anything is correct at this point.
- * The 'msg' pointer has been set to "unexpected end of
- * LZ stream", which is fine, but return an error code
- * that the caller won't accept.
- */
- ret = PNG_UNEXPECTED_ZLIB_RETURN;
- }
- }
-
- else if (ret == Z_OK)
- ret = PNG_UNEXPECTED_ZLIB_RETURN; /* for safety */
-
- /* Free the text pointer (this is the old read_buffer on
- * success)
- */
- png_free(png_ptr, text);
-
- /* This really is very benign, but it's still an error because
- * the extra space may otherwise be used as a Trojan Horse.
- */
- if (ret == Z_STREAM_END &&
- chunklength - prefix_size != lzsize)
- png_chunk_benign_error(png_ptr, "extra compressed data");
- }
-
- else
- {
- /* Out of memory allocating the buffer */
- ret = Z_MEM_ERROR;
- png_zstream_error(png_ptr, Z_MEM_ERROR);
- }
- }
-
- else
- {
- /* inflateReset failed, store the error message */
- png_zstream_error(png_ptr, ret);
- ret = PNG_UNEXPECTED_ZLIB_RETURN;
- }
- }
-
- else if (ret == Z_OK)
- ret = PNG_UNEXPECTED_ZLIB_RETURN;
-
- /* Release the claimed stream */
- png_ptr->zowner = 0;
- }
-
- else /* the claim failed */ if (ret == Z_STREAM_END) /* impossible! */
- ret = PNG_UNEXPECTED_ZLIB_RETURN;
-
- return ret;
- }
-
- else
- {
- /* Application/configuration limits exceeded */
- png_zstream_error(png_ptr, Z_MEM_ERROR);
- return Z_MEM_ERROR;
- }
-}
-#endif /* READ_zTXt || READ_iTXt */
-#endif /* READ_COMPRESSED_TEXT */
-
-#ifdef PNG_READ_iCCP_SUPPORTED
-/* Perform a partial read and decompress, producing 'avail_out' bytes and
- * reading from the current chunk as required.
- */
-static int
-png_inflate_read(png_structrp png_ptr, png_bytep read_buffer, uInt read_size,
- png_uint_32p chunk_bytes, png_bytep next_out, png_alloc_size_t *out_size,
- int finish)
-{
- if (png_ptr->zowner == png_ptr->chunk_name)
- {
- int ret;
-
- /* next_in and avail_in must have been initialized by the caller. */
- png_ptr->zstream.next_out = next_out;
- png_ptr->zstream.avail_out = 0; /* set in the loop */
-
- do
- {
- if (png_ptr->zstream.avail_in == 0)
- {
- if (read_size > *chunk_bytes)
- read_size = (uInt)*chunk_bytes;
- *chunk_bytes -= read_size;
-
- if (read_size > 0)
- png_crc_read(png_ptr, read_buffer, read_size);
-
- png_ptr->zstream.next_in = read_buffer;
- png_ptr->zstream.avail_in = read_size;
- }
-
- if (png_ptr->zstream.avail_out == 0)
- {
- uInt avail = ZLIB_IO_MAX;
- if (avail > *out_size)
- avail = (uInt)*out_size;
- *out_size -= avail;
-
- png_ptr->zstream.avail_out = avail;
- }
-
- /* Use Z_SYNC_FLUSH when there is no more chunk data to ensure that all
- * the available output is produced; this allows reading of truncated
- * streams.
- */
- ret = PNG_INFLATE(png_ptr, *chunk_bytes > 0 ?
- Z_NO_FLUSH : (finish ? Z_FINISH : Z_SYNC_FLUSH));
- }
- while (ret == Z_OK && (*out_size > 0 || png_ptr->zstream.avail_out > 0));
-
- *out_size += png_ptr->zstream.avail_out;
- png_ptr->zstream.avail_out = 0; /* Should not be required, but is safe */
-
- /* Ensure the error message pointer is always set: */
- png_zstream_error(png_ptr, ret);
- return ret;
- }
-
- else
- {
- png_ptr->zstream.msg = PNGZ_MSG_CAST("zstream unclaimed");
- return Z_STREAM_ERROR;
- }
-}
-#endif /* READ_iCCP */
-
-/* Read and check the IDHR chunk */
-
-void /* PRIVATE */
-png_handle_IHDR(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- png_byte buf[13];
- png_uint_32 width, height;
- int bit_depth, color_type, compression_type, filter_type;
- int interlace_type;
-
- png_debug(1, "in png_handle_IHDR");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) != 0)
- png_chunk_error(png_ptr, "out of place");
-
- /* Check the length */
- if (length != 13)
- png_chunk_error(png_ptr, "invalid");
-
- png_ptr->mode |= PNG_HAVE_IHDR;
-
- png_crc_read(png_ptr, buf, 13);
- png_crc_finish(png_ptr, 0);
-
- width = png_get_uint_31(png_ptr, buf);
- height = png_get_uint_31(png_ptr, buf + 4);
- bit_depth = buf[8];
- color_type = buf[9];
- compression_type = buf[10];
- filter_type = buf[11];
- interlace_type = buf[12];
-
- /* Set internal variables */
- png_ptr->width = width;
- png_ptr->height = height;
- png_ptr->bit_depth = (png_byte)bit_depth;
- png_ptr->interlaced = (png_byte)interlace_type;
- png_ptr->color_type = (png_byte)color_type;
-#ifdef PNG_MNG_FEATURES_SUPPORTED
- png_ptr->filter_type = (png_byte)filter_type;
-#endif
- png_ptr->compression_type = (png_byte)compression_type;
-
- /* Find number of channels */
- switch (png_ptr->color_type)
- {
- default: /* invalid, png_set_IHDR calls png_error */
- case PNG_COLOR_TYPE_GRAY:
- case PNG_COLOR_TYPE_PALETTE:
- png_ptr->channels = 1;
- break;
-
- case PNG_COLOR_TYPE_RGB:
- png_ptr->channels = 3;
- break;
-
- case PNG_COLOR_TYPE_GRAY_ALPHA:
- png_ptr->channels = 2;
- break;
-
- case PNG_COLOR_TYPE_RGB_ALPHA:
- png_ptr->channels = 4;
- break;
- }
-
- /* Set up other useful info */
- png_ptr->pixel_depth = (png_byte)(png_ptr->bit_depth * png_ptr->channels);
- png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, png_ptr->width);
- png_debug1(3, "bit_depth = %d", png_ptr->bit_depth);
- png_debug1(3, "channels = %d", png_ptr->channels);
- png_debug1(3, "rowbytes = %lu", (unsigned long)png_ptr->rowbytes);
- png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth,
- color_type, interlace_type, compression_type, filter_type);
-}
-
-/* Read and check the palette */
-void /* PRIVATE */
-png_handle_PLTE(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- png_color palette[PNG_MAX_PALETTE_LENGTH];
- int max_palette_length, num, i;
-#ifdef PNG_POINTER_INDEXING_SUPPORTED
- png_colorp pal_ptr;
-#endif
-
- png_debug(1, "in png_handle_PLTE");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- /* Moved to before the 'after IDAT' check below because otherwise duplicate
- * PLTE chunks are potentially ignored (the spec says there shall not be more
- * than one PLTE, the error is not treated as benign, so this check trumps
- * the requirement that PLTE appears before IDAT.)
- */
- else if ((png_ptr->mode & PNG_HAVE_PLTE) != 0)
- png_chunk_error(png_ptr, "duplicate");
-
- else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
- {
- /* This is benign because the non-benign error happened before, when an
- * IDAT was encountered in a color-mapped image with no PLTE.
- */
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of place");
- return;
- }
-
- png_ptr->mode |= PNG_HAVE_PLTE;
-
- if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) == 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "ignored in grayscale PNG");
- return;
- }
-
-#ifndef PNG_READ_OPT_PLTE_SUPPORTED
- if (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE)
- {
- png_crc_finish(png_ptr, length);
- return;
- }
-#endif
-
- if (length > 3*PNG_MAX_PALETTE_LENGTH || length % 3)
- {
- png_crc_finish(png_ptr, length);
-
- if (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE)
- png_chunk_benign_error(png_ptr, "invalid");
-
- else
- png_chunk_error(png_ptr, "invalid");
-
- return;
- }
-
- /* The cast is safe because 'length' is less than 3*PNG_MAX_PALETTE_LENGTH */
- num = (int)length / 3;
-
- /* If the palette has 256 or fewer entries but is too large for the bit
- * depth, we don't issue an error, to preserve the behavior of previous
- * libpng versions. We silently truncate the unused extra palette entries
- * here.
- */
- if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- max_palette_length = (1 << png_ptr->bit_depth);
- else
- max_palette_length = PNG_MAX_PALETTE_LENGTH;
-
- if (num > max_palette_length)
- num = max_palette_length;
-
-#ifdef PNG_POINTER_INDEXING_SUPPORTED
- for (i = 0, pal_ptr = palette; i < num; i++, pal_ptr++)
- {
- png_byte buf[3];
-
- png_crc_read(png_ptr, buf, 3);
- pal_ptr->red = buf[0];
- pal_ptr->green = buf[1];
- pal_ptr->blue = buf[2];
- }
-#else
- for (i = 0; i < num; i++)
- {
- png_byte buf[3];
-
- png_crc_read(png_ptr, buf, 3);
- /* Don't depend upon png_color being any order */
- palette[i].red = buf[0];
- palette[i].green = buf[1];
- palette[i].blue = buf[2];
- }
-#endif
-
- /* If we actually need the PLTE chunk (ie for a paletted image), we do
- * whatever the normal CRC configuration tells us. However, if we
- * have an RGB image, the PLTE can be considered ancillary, so
- * we will act as though it is.
- */
-#ifndef PNG_READ_OPT_PLTE_SUPPORTED
- if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
-#endif
- {
- png_crc_finish(png_ptr, (png_uint_32) (length - (unsigned int)num * 3));
- }
-
-#ifndef PNG_READ_OPT_PLTE_SUPPORTED
- else if (png_crc_error(png_ptr) != 0) /* Only if we have a CRC error */
- {
- /* If we don't want to use the data from an ancillary chunk,
- * we have two options: an error abort, or a warning and we
- * ignore the data in this chunk (which should be OK, since
- * it's considered ancillary for a RGB or RGBA image).
- *
- * IMPLEMENTATION NOTE: this is only here because png_crc_finish uses the
- * chunk type to determine whether to check the ancillary or the critical
- * flags.
- */
- if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_USE) == 0)
- {
- if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN) != 0)
- return;
-
- else
- png_chunk_error(png_ptr, "CRC error");
- }
-
- /* Otherwise, we (optionally) emit a warning and use the chunk. */
- else if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN) == 0)
- png_chunk_warning(png_ptr, "CRC error");
- }
-#endif
-
- /* TODO: png_set_PLTE has the side effect of setting png_ptr->palette to its
- * own copy of the palette. This has the side effect that when png_start_row
- * is called (this happens after any call to png_read_update_info) the
- * info_ptr palette gets changed. This is extremely unexpected and
- * confusing.
- *
- * Fix this by not sharing the palette in this way.
- */
- png_set_PLTE(png_ptr, info_ptr, palette, num);
-
- /* The three chunks, bKGD, hIST and tRNS *must* appear after PLTE and before
- * IDAT. Prior to 1.6.0 this was not checked; instead the code merely
- * checked the apparent validity of a tRNS chunk inserted before PLTE on a
- * palette PNG. 1.6.0 attempts to rigorously follow the standard and
- * therefore does a benign error if the erroneous condition is detected *and*
- * cancels the tRNS if the benign error returns. The alternative is to
- * amend the standard since it would be rather hypocritical of the standards
- * maintainers to ignore it.
- */
-#ifdef PNG_READ_tRNS_SUPPORTED
- if (png_ptr->num_trans > 0 ||
- (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS) != 0))
- {
- /* Cancel this because otherwise it would be used if the transforms
- * require it. Don't cancel the 'valid' flag because this would prevent
- * detection of duplicate chunks.
- */
- png_ptr->num_trans = 0;
-
- if (info_ptr != NULL)
- info_ptr->num_trans = 0;
-
- png_chunk_benign_error(png_ptr, "tRNS must be after");
- }
-#endif
-
-#ifdef PNG_READ_hIST_SUPPORTED
- if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST) != 0)
- png_chunk_benign_error(png_ptr, "hIST must be after");
-#endif
-
-#ifdef PNG_READ_bKGD_SUPPORTED
- if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD) != 0)
- png_chunk_benign_error(png_ptr, "bKGD must be after");
-#endif
-}
-
-void /* PRIVATE */
-png_handle_IEND(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- png_debug(1, "in png_handle_IEND");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0 ||
- (png_ptr->mode & PNG_HAVE_IDAT) == 0)
- png_chunk_error(png_ptr, "out of place");
-
- png_ptr->mode |= (PNG_AFTER_IDAT | PNG_HAVE_IEND);
-
- png_crc_finish(png_ptr, length);
-
- if (length != 0)
- png_chunk_benign_error(png_ptr, "invalid");
-
- PNG_UNUSED(info_ptr)
-}
-
-#ifdef PNG_READ_gAMA_SUPPORTED
-void /* PRIVATE */
-png_handle_gAMA(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- png_fixed_point igamma;
- png_byte buf[4];
-
- png_debug(1, "in png_handle_gAMA");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- else if ((png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of place");
- return;
- }
-
- if (length != 4)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "invalid");
- return;
- }
-
- png_crc_read(png_ptr, buf, 4);
-
- if (png_crc_finish(png_ptr, 0) != 0)
- return;
-
- igamma = png_get_fixed_point(NULL, buf);
-
- png_colorspace_set_gamma(png_ptr, &png_ptr->colorspace, igamma);
- png_colorspace_sync(png_ptr, info_ptr);
-}
-#endif
-
-#ifdef PNG_READ_sBIT_SUPPORTED
-void /* PRIVATE */
-png_handle_sBIT(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- unsigned int truelen, i;
- png_byte sample_depth;
- png_byte buf[4];
-
- png_debug(1, "in png_handle_sBIT");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- else if ((png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of place");
- return;
- }
-
- if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "duplicate");
- return;
- }
-
- if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- {
- truelen = 3;
- sample_depth = 8;
- }
-
- else
- {
- truelen = png_ptr->channels;
- sample_depth = png_ptr->bit_depth;
- }
-
- if (length != truelen || length > 4)
- {
- png_chunk_benign_error(png_ptr, "invalid");
- png_crc_finish(png_ptr, length);
- return;
- }
-
- buf[0] = buf[1] = buf[2] = buf[3] = sample_depth;
- png_crc_read(png_ptr, buf, truelen);
-
- if (png_crc_finish(png_ptr, 0) != 0)
- return;
-
- for (i=0; i<truelen; ++i)
- {
- if (buf[i] == 0 || buf[i] > sample_depth)
- {
- png_chunk_benign_error(png_ptr, "invalid");
- return;
- }
- }
-
- if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) != 0)
- {
- png_ptr->sig_bit.red = buf[0];
- png_ptr->sig_bit.green = buf[1];
- png_ptr->sig_bit.blue = buf[2];
- png_ptr->sig_bit.alpha = buf[3];
- }
-
- else
- {
- png_ptr->sig_bit.gray = buf[0];
- png_ptr->sig_bit.red = buf[0];
- png_ptr->sig_bit.green = buf[0];
- png_ptr->sig_bit.blue = buf[0];
- png_ptr->sig_bit.alpha = buf[1];
- }
-
- png_set_sBIT(png_ptr, info_ptr, &(png_ptr->sig_bit));
-}
-#endif
-
-#ifdef PNG_READ_cHRM_SUPPORTED
-void /* PRIVATE */
-png_handle_cHRM(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- png_byte buf[32];
- png_xy xy;
-
- png_debug(1, "in png_handle_cHRM");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- else if ((png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of place");
- return;
- }
-
- if (length != 32)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "invalid");
- return;
- }
-
- png_crc_read(png_ptr, buf, 32);
-
- if (png_crc_finish(png_ptr, 0) != 0)
- return;
-
- xy.whitex = png_get_fixed_point(NULL, buf);
- xy.whitey = png_get_fixed_point(NULL, buf + 4);
- xy.redx = png_get_fixed_point(NULL, buf + 8);
- xy.redy = png_get_fixed_point(NULL, buf + 12);
- xy.greenx = png_get_fixed_point(NULL, buf + 16);
- xy.greeny = png_get_fixed_point(NULL, buf + 20);
- xy.bluex = png_get_fixed_point(NULL, buf + 24);
- xy.bluey = png_get_fixed_point(NULL, buf + 28);
-
- if (xy.whitex == PNG_FIXED_ERROR ||
- xy.whitey == PNG_FIXED_ERROR ||
- xy.redx == PNG_FIXED_ERROR ||
- xy.redy == PNG_FIXED_ERROR ||
- xy.greenx == PNG_FIXED_ERROR ||
- xy.greeny == PNG_FIXED_ERROR ||
- xy.bluex == PNG_FIXED_ERROR ||
- xy.bluey == PNG_FIXED_ERROR)
- {
- png_chunk_benign_error(png_ptr, "invalid values");
- return;
- }
-
- /* If a colorspace error has already been output skip this chunk */
- if ((png_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) != 0)
- return;
-
- if ((png_ptr->colorspace.flags & PNG_COLORSPACE_FROM_cHRM) != 0)
- {
- png_ptr->colorspace.flags |= PNG_COLORSPACE_INVALID;
- png_colorspace_sync(png_ptr, info_ptr);
- png_chunk_benign_error(png_ptr, "duplicate");
- return;
- }
-
- png_ptr->colorspace.flags |= PNG_COLORSPACE_FROM_cHRM;
- (void)png_colorspace_set_chromaticities(png_ptr, &png_ptr->colorspace, &xy,
- 1/*prefer cHRM values*/);
- png_colorspace_sync(png_ptr, info_ptr);
-}
-#endif
-
-#ifdef PNG_READ_sRGB_SUPPORTED
-void /* PRIVATE */
-png_handle_sRGB(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- png_byte intent;
-
- png_debug(1, "in png_handle_sRGB");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- else if ((png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of place");
- return;
- }
-
- if (length != 1)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "invalid");
- return;
- }
-
- png_crc_read(png_ptr, &intent, 1);
-
- if (png_crc_finish(png_ptr, 0) != 0)
- return;
-
- /* If a colorspace error has already been output skip this chunk */
- if ((png_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) != 0)
- return;
-
- /* Only one sRGB or iCCP chunk is allowed, use the HAVE_INTENT flag to detect
- * this.
- */
- if ((png_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_INTENT) != 0)
- {
- png_ptr->colorspace.flags |= PNG_COLORSPACE_INVALID;
- png_colorspace_sync(png_ptr, info_ptr);
- png_chunk_benign_error(png_ptr, "too many profiles");
- return;
- }
-
- (void)png_colorspace_set_sRGB(png_ptr, &png_ptr->colorspace, intent);
- png_colorspace_sync(png_ptr, info_ptr);
-}
-#endif /* READ_sRGB */
-
-#ifdef PNG_READ_iCCP_SUPPORTED
-void /* PRIVATE */
-png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-/* Note: this does not properly handle profiles that are > 64K under DOS */
-{
- png_const_charp errmsg = NULL; /* error message output, or no error */
- int finished = 0; /* crc checked */
-
- png_debug(1, "in png_handle_iCCP");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- else if ((png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of place");
- return;
- }
-
- /* Consistent with all the above colorspace handling an obviously *invalid*
- * chunk is just ignored, so does not invalidate the color space. An
- * alternative is to set the 'invalid' flags at the start of this routine
- * and only clear them in they were not set before and all the tests pass.
- */
-
- /* The keyword must be at least one character and there is a
- * terminator (0) byte and the compression method byte, and the
- * 'zlib' datastream is at least 11 bytes.
- */
- if (length < 14)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "too short");
- return;
- }
-
- /* If a colorspace error has already been output skip this chunk */
- if ((png_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) != 0)
- {
- png_crc_finish(png_ptr, length);
- return;
- }
-
- /* Only one sRGB or iCCP chunk is allowed, use the HAVE_INTENT flag to detect
- * this.
- */
- if ((png_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_INTENT) == 0)
- {
- uInt read_length, keyword_length;
- char keyword[81];
-
- /* Find the keyword; the keyword plus separator and compression method
- * bytes can be at most 81 characters long.
- */
- read_length = 81; /* maximum */
- if (read_length > length)
- read_length = (uInt)length;
-
- png_crc_read(png_ptr, (png_bytep)keyword, read_length);
- length -= read_length;
-
- /* The minimum 'zlib' stream is assumed to be just the 2 byte header,
- * 5 bytes minimum 'deflate' stream, and the 4 byte checksum.
- */
- if (length < 11)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "too short");
- return;
- }
-
- keyword_length = 0;
- while (keyword_length < 80 && keyword_length < read_length &&
- keyword[keyword_length] != 0)
- ++keyword_length;
-
- /* TODO: make the keyword checking common */
- if (keyword_length >= 1 && keyword_length <= 79)
- {
- /* We only understand '0' compression - deflate - so if we get a
- * different value we can't safely decode the chunk.
- */
- if (keyword_length+1 < read_length &&
- keyword[keyword_length+1] == PNG_COMPRESSION_TYPE_BASE)
- {
- read_length -= keyword_length+2;
-
- if (png_inflate_claim(png_ptr, png_iCCP) == Z_OK)
- {
- Byte profile_header[132]={0};
- Byte local_buffer[PNG_INFLATE_BUF_SIZE];
- png_alloc_size_t size = (sizeof profile_header);
-
- png_ptr->zstream.next_in = (Bytef*)keyword + (keyword_length+2);
- png_ptr->zstream.avail_in = read_length;
- (void)png_inflate_read(png_ptr, local_buffer,
- (sizeof local_buffer), &length, profile_header, &size,
- 0/*finish: don't, because the output is too small*/);
-
- if (size == 0)
- {
- /* We have the ICC profile header; do the basic header checks.
- */
- png_uint_32 profile_length = png_get_uint_32(profile_header);
-
- if (png_icc_check_length(png_ptr, &png_ptr->colorspace,
- keyword, profile_length) != 0)
- {
- /* The length is apparently ok, so we can check the 132
- * byte header.
- */
- if (png_icc_check_header(png_ptr, &png_ptr->colorspace,
- keyword, profile_length, profile_header,
- png_ptr->color_type) != 0)
- {
- /* Now read the tag table; a variable size buffer is
- * needed at this point, allocate one for the whole
- * profile. The header check has already validated
- * that none of this stuff will overflow.
- */
- png_uint_32 tag_count =
- png_get_uint_32(profile_header + 128);
- png_bytep profile = png_read_buffer(png_ptr,
- profile_length, 2/*silent*/);
-
- if (profile != NULL)
- {
- memcpy(profile, profile_header,
- (sizeof profile_header));
-
- size = 12 * tag_count;
-
- (void)png_inflate_read(png_ptr, local_buffer,
- (sizeof local_buffer), &length,
- profile + (sizeof profile_header), &size, 0);
-
- /* Still expect a buffer error because we expect
- * there to be some tag data!
- */
- if (size == 0)
- {
- if (png_icc_check_tag_table(png_ptr,
- &png_ptr->colorspace, keyword, profile_length,
- profile) != 0)
- {
- /* The profile has been validated for basic
- * security issues, so read the whole thing in.
- */
- size = profile_length - (sizeof profile_header)
- - 12 * tag_count;
-
- (void)png_inflate_read(png_ptr, local_buffer,
- (sizeof local_buffer), &length,
- profile + (sizeof profile_header) +
- 12 * tag_count, &size, 1/*finish*/);
-
- if (length > 0 && !(png_ptr->flags &
- PNG_FLAG_BENIGN_ERRORS_WARN))
- errmsg = "extra compressed data";
-
- /* But otherwise allow extra data: */
- else if (size == 0)
- {
- if (length > 0)
- {
- /* This can be handled completely, so
- * keep going.
- */
- png_chunk_warning(png_ptr,
- "extra compressed data");
- }
-
- png_crc_finish(png_ptr, length);
- finished = 1;
-
-# if defined(PNG_sRGB_SUPPORTED) && PNG_sRGB_PROFILE_CHECKS >= 0
- /* Check for a match against sRGB */
- png_icc_set_sRGB(png_ptr,
- &png_ptr->colorspace, profile,
- png_ptr->zstream.adler);
-# endif
-
- /* Steal the profile for info_ptr. */
- if (info_ptr != NULL)
- {
- png_free_data(png_ptr, info_ptr,
- PNG_FREE_ICCP, 0);
-
- info_ptr->iccp_name = png_voidcast(char*,
- png_malloc_base(png_ptr,
- keyword_length+1));
- if (info_ptr->iccp_name != NULL)
- {
- memcpy(info_ptr->iccp_name, keyword,
- keyword_length+1);
- info_ptr->iccp_proflen =
- profile_length;
- info_ptr->iccp_profile = profile;
- png_ptr->read_buffer = NULL; /*steal*/
- info_ptr->free_me |= PNG_FREE_ICCP;
- info_ptr->valid |= PNG_INFO_iCCP;
- }
-
- else
- {
- png_ptr->colorspace.flags |=
- PNG_COLORSPACE_INVALID;
- errmsg = "out of memory";
- }
- }
-
- /* else the profile remains in the read
- * buffer which gets reused for subsequent
- * chunks.
- */
-
- if (info_ptr != NULL)
- png_colorspace_sync(png_ptr, info_ptr);
-
- if (errmsg == NULL)
- {
- png_ptr->zowner = 0;
- return;
- }
- }
- if (errmsg == NULL)
- errmsg = png_ptr->zstream.msg;
- }
- /* else png_icc_check_tag_table output an error */
- }
- else /* profile truncated */
- errmsg = png_ptr->zstream.msg;
- }
-
- else
- errmsg = "out of memory";
- }
-
- /* else png_icc_check_header output an error */
- }
-
- /* else png_icc_check_length output an error */
- }
-
- else /* profile truncated */
- errmsg = png_ptr->zstream.msg;
-
- /* Release the stream */
- png_ptr->zowner = 0;
- }
-
- else /* png_inflate_claim failed */
- errmsg = png_ptr->zstream.msg;
- }
-
- else
- errmsg = "bad compression method"; /* or missing */
- }
-
- else
- errmsg = "bad keyword";
- }
-
- else
- errmsg = "too many profiles";
-
- /* Failure: the reason is in 'errmsg' */
- if (finished == 0)
- png_crc_finish(png_ptr, length);
-
- png_ptr->colorspace.flags |= PNG_COLORSPACE_INVALID;
- png_colorspace_sync(png_ptr, info_ptr);
- if (errmsg != NULL) /* else already output */
- png_chunk_benign_error(png_ptr, errmsg);
-}
-#endif /* READ_iCCP */
-
-#ifdef PNG_READ_sPLT_SUPPORTED
-void /* PRIVATE */
-png_handle_sPLT(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-/* Note: this does not properly handle chunks that are > 64K under DOS */
-{
- png_bytep entry_start, buffer;
- png_sPLT_t new_palette;
- png_sPLT_entryp pp;
- png_uint_32 data_length;
- int entry_size, i;
- png_uint_32 skip = 0;
- png_uint_32 dl;
- size_t max_dl;
-
- png_debug(1, "in png_handle_sPLT");
-
-#ifdef PNG_USER_LIMITS_SUPPORTED
- if (png_ptr->user_chunk_cache_max != 0)
- {
- if (png_ptr->user_chunk_cache_max == 1)
- {
- png_crc_finish(png_ptr, length);
- return;
- }
-
- if (--png_ptr->user_chunk_cache_max == 1)
- {
- png_warning(png_ptr, "No space in chunk cache for sPLT");
- png_crc_finish(png_ptr, length);
- return;
- }
- }
-#endif
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of place");
- return;
- }
-
-#ifdef PNG_MAX_MALLOC_64K
- if (length > 65535U)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "too large to fit in memory");
- return;
- }
-#endif
-
- buffer = png_read_buffer(png_ptr, length+1, 2/*silent*/);
- if (buffer == NULL)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of memory");
- return;
- }
-
-
- /* WARNING: this may break if size_t is less than 32 bits; it is assumed
- * that the PNG_MAX_MALLOC_64K test is enabled in this case, but this is a
- * potential breakage point if the types in pngconf.h aren't exactly right.
- */
- png_crc_read(png_ptr, buffer, length);
-
- if (png_crc_finish(png_ptr, skip) != 0)
- return;
-
- buffer[length] = 0;
-
- for (entry_start = buffer; *entry_start; entry_start++)
- /* Empty loop to find end of name */ ;
-
- ++entry_start;
-
- /* A sample depth should follow the separator, and we should be on it */
- if (length < 2U || entry_start > buffer + (length - 2U))
- {
- png_warning(png_ptr, "malformed sPLT chunk");
- return;
- }
-
- new_palette.depth = *entry_start++;
- entry_size = (new_palette.depth == 8 ? 6 : 10);
- /* This must fit in a png_uint_32 because it is derived from the original
- * chunk data length.
- */
- data_length = length - (png_uint_32)(entry_start - buffer);
-
- /* Integrity-check the data length */
- if ((data_length % (unsigned int)entry_size) != 0)
- {
- png_warning(png_ptr, "sPLT chunk has bad length");
- return;
- }
-
- dl = (png_uint_32)(data_length / (unsigned int)entry_size);
- max_dl = PNG_SIZE_MAX / (sizeof (png_sPLT_entry));
-
- if (dl > max_dl)
- {
- png_warning(png_ptr, "sPLT chunk too long");
- return;
- }
-
- new_palette.nentries = (png_int_32)(data_length / (unsigned int)entry_size);
-
- new_palette.entries = (png_sPLT_entryp)png_malloc_warn(png_ptr,
- (png_alloc_size_t) new_palette.nentries * (sizeof (png_sPLT_entry)));
-
- if (new_palette.entries == NULL)
- {
- png_warning(png_ptr, "sPLT chunk requires too much memory");
- return;
- }
-
-#ifdef PNG_POINTER_INDEXING_SUPPORTED
- for (i = 0; i < new_palette.nentries; i++)
- {
- pp = new_palette.entries + i;
-
- if (new_palette.depth == 8)
- {
- pp->red = *entry_start++;
- pp->green = *entry_start++;
- pp->blue = *entry_start++;
- pp->alpha = *entry_start++;
- }
-
- else
- {
- pp->red = png_get_uint_16(entry_start); entry_start += 2;
- pp->green = png_get_uint_16(entry_start); entry_start += 2;
- pp->blue = png_get_uint_16(entry_start); entry_start += 2;
- pp->alpha = png_get_uint_16(entry_start); entry_start += 2;
- }
-
- pp->frequency = png_get_uint_16(entry_start); entry_start += 2;
- }
-#else
- pp = new_palette.entries;
-
- for (i = 0; i < new_palette.nentries; i++)
- {
-
- if (new_palette.depth == 8)
- {
- pp[i].red = *entry_start++;
- pp[i].green = *entry_start++;
- pp[i].blue = *entry_start++;
- pp[i].alpha = *entry_start++;
- }
-
- else
- {
- pp[i].red = png_get_uint_16(entry_start); entry_start += 2;
- pp[i].green = png_get_uint_16(entry_start); entry_start += 2;
- pp[i].blue = png_get_uint_16(entry_start); entry_start += 2;
- pp[i].alpha = png_get_uint_16(entry_start); entry_start += 2;
- }
-
- pp[i].frequency = png_get_uint_16(entry_start); entry_start += 2;
- }
-#endif
-
- /* Discard all chunk data except the name and stash that */
- new_palette.name = (png_charp)buffer;
-
- png_set_sPLT(png_ptr, info_ptr, &new_palette, 1);
-
- png_free(png_ptr, new_palette.entries);
-}
-#endif /* READ_sPLT */
-
-#ifdef PNG_READ_tRNS_SUPPORTED
-void /* PRIVATE */
-png_handle_tRNS(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- png_byte readbuf[PNG_MAX_PALETTE_LENGTH];
-
- png_debug(1, "in png_handle_tRNS");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of place");
- return;
- }
-
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "duplicate");
- return;
- }
-
- if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY)
- {
- png_byte buf[2];
-
- if (length != 2)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "invalid");
- return;
- }
-
- png_crc_read(png_ptr, buf, 2);
- png_ptr->num_trans = 1;
- png_ptr->trans_color.gray = png_get_uint_16(buf);
- }
-
- else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB)
- {
- png_byte buf[6];
-
- if (length != 6)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "invalid");
- return;
- }
-
- png_crc_read(png_ptr, buf, length);
- png_ptr->num_trans = 1;
- png_ptr->trans_color.red = png_get_uint_16(buf);
- png_ptr->trans_color.green = png_get_uint_16(buf + 2);
- png_ptr->trans_color.blue = png_get_uint_16(buf + 4);
- }
-
- else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- {
- if ((png_ptr->mode & PNG_HAVE_PLTE) == 0)
- {
- /* TODO: is this actually an error in the ISO spec? */
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of place");
- return;
- }
-
- if (length > (unsigned int) png_ptr->num_palette ||
- length > (unsigned int) PNG_MAX_PALETTE_LENGTH ||
- length == 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "invalid");
- return;
- }
-
- png_crc_read(png_ptr, readbuf, length);
- png_ptr->num_trans = (png_uint_16)length;
- }
-
- else
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "invalid with alpha channel");
- return;
- }
-
- if (png_crc_finish(png_ptr, 0) != 0)
- {
- png_ptr->num_trans = 0;
- return;
- }
-
- /* TODO: this is a horrible side effect in the palette case because the
- * png_struct ends up with a pointer to the tRNS buffer owned by the
- * png_info. Fix this.
- */
- png_set_tRNS(png_ptr, info_ptr, readbuf, png_ptr->num_trans,
- &(png_ptr->trans_color));
-}
-#endif
-
-#ifdef PNG_READ_bKGD_SUPPORTED
-void /* PRIVATE */
-png_handle_bKGD(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- unsigned int truelen;
- png_byte buf[6];
- png_color_16 background;
-
- png_debug(1, "in png_handle_bKGD");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0 ||
- (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
- (png_ptr->mode & PNG_HAVE_PLTE) == 0))
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of place");
- return;
- }
-
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "duplicate");
- return;
- }
-
- if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- truelen = 1;
-
- else if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) != 0)
- truelen = 6;
-
- else
- truelen = 2;
-
- if (length != truelen)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "invalid");
- return;
- }
-
- png_crc_read(png_ptr, buf, truelen);
-
- if (png_crc_finish(png_ptr, 0) != 0)
- return;
-
- /* We convert the index value into RGB components so that we can allow
- * arbitrary RGB values for background when we have transparency, and
- * so it is easy to determine the RGB values of the background color
- * from the info_ptr struct.
- */
- if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- {
- background.index = buf[0];
-
- if (info_ptr != NULL && info_ptr->num_palette != 0)
- {
- if (buf[0] >= info_ptr->num_palette)
- {
- png_chunk_benign_error(png_ptr, "invalid index");
- return;
- }
-
- background.red = (png_uint_16)png_ptr->palette[buf[0]].red;
- background.green = (png_uint_16)png_ptr->palette[buf[0]].green;
- background.blue = (png_uint_16)png_ptr->palette[buf[0]].blue;
- }
-
- else
- background.red = background.green = background.blue = 0;
-
- background.gray = 0;
- }
-
- else if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) == 0) /* GRAY */
- {
- if (png_ptr->bit_depth <= 8)
- {
- if (buf[0] != 0 || buf[1] >= (unsigned int)(1 << png_ptr->bit_depth))
- {
- png_chunk_benign_error(png_ptr, "invalid gray level");
- return;
- }
- }
-
- background.index = 0;
- background.red =
- background.green =
- background.blue =
- background.gray = png_get_uint_16(buf);
- }
-
- else
- {
- if (png_ptr->bit_depth <= 8)
- {
- if (buf[0] != 0 || buf[2] != 0 || buf[4] != 0)
- {
- png_chunk_benign_error(png_ptr, "invalid color");
- return;
- }
- }
-
- background.index = 0;
- background.red = png_get_uint_16(buf);
- background.green = png_get_uint_16(buf + 2);
- background.blue = png_get_uint_16(buf + 4);
- background.gray = 0;
- }
-
- png_set_bKGD(png_ptr, info_ptr, &background);
-}
-#endif
-
-#ifdef PNG_READ_eXIf_SUPPORTED
-void /* PRIVATE */
-png_handle_eXIf(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- unsigned int i;
-
- png_debug(1, "in png_handle_eXIf");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- if (length < 2)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "too short");
- return;
- }
-
- else if (info_ptr == NULL || (info_ptr->valid & PNG_INFO_eXIf) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "duplicate");
- return;
- }
-
- info_ptr->free_me |= PNG_FREE_EXIF;
-
- info_ptr->eXIf_buf = png_voidcast(png_bytep,
- png_malloc_warn(png_ptr, length));
-
- if (info_ptr->eXIf_buf == NULL)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of memory");
- return;
- }
-
- for (i = 0; i < length; i++)
- {
- png_byte buf[1];
- png_crc_read(png_ptr, buf, 1);
- info_ptr->eXIf_buf[i] = buf[0];
- if (i == 1 && buf[0] != 'M' && buf[0] != 'I'
- && info_ptr->eXIf_buf[0] != buf[0])
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "incorrect byte-order specifier");
- png_free(png_ptr, info_ptr->eXIf_buf);
- info_ptr->eXIf_buf = NULL;
- return;
- }
- }
-
- if (png_crc_finish(png_ptr, 0) != 0)
- return;
-
- png_set_eXIf_1(png_ptr, info_ptr, length, info_ptr->eXIf_buf);
-
- png_free(png_ptr, info_ptr->eXIf_buf);
- info_ptr->eXIf_buf = NULL;
-}
-#endif
-
-#ifdef PNG_READ_hIST_SUPPORTED
-void /* PRIVATE */
-png_handle_hIST(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- unsigned int num, i;
- png_uint_16 readbuf[PNG_MAX_PALETTE_LENGTH];
-
- png_debug(1, "in png_handle_hIST");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0 ||
- (png_ptr->mode & PNG_HAVE_PLTE) == 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of place");
- return;
- }
-
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "duplicate");
- return;
- }
-
- num = length / 2 ;
-
- if (num != (unsigned int) png_ptr->num_palette ||
- num > (unsigned int) PNG_MAX_PALETTE_LENGTH)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "invalid");
- return;
- }
-
- for (i = 0; i < num; i++)
- {
- png_byte buf[2];
-
- png_crc_read(png_ptr, buf, 2);
- readbuf[i] = png_get_uint_16(buf);
- }
-
- if (png_crc_finish(png_ptr, 0) != 0)
- return;
-
- png_set_hIST(png_ptr, info_ptr, readbuf);
-}
-#endif
-
-#ifdef PNG_READ_pHYs_SUPPORTED
-void /* PRIVATE */
-png_handle_pHYs(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- png_byte buf[9];
- png_uint_32 res_x, res_y;
- int unit_type;
-
- png_debug(1, "in png_handle_pHYs");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of place");
- return;
- }
-
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "duplicate");
- return;
- }
-
- if (length != 9)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "invalid");
- return;
- }
-
- png_crc_read(png_ptr, buf, 9);
-
- if (png_crc_finish(png_ptr, 0) != 0)
- return;
-
- res_x = png_get_uint_32(buf);
- res_y = png_get_uint_32(buf + 4);
- unit_type = buf[8];
- png_set_pHYs(png_ptr, info_ptr, res_x, res_y, unit_type);
-}
-#endif
-
-#ifdef PNG_READ_oFFs_SUPPORTED
-void /* PRIVATE */
-png_handle_oFFs(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- png_byte buf[9];
- png_int_32 offset_x, offset_y;
- int unit_type;
-
- png_debug(1, "in png_handle_oFFs");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of place");
- return;
- }
-
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "duplicate");
- return;
- }
-
- if (length != 9)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "invalid");
- return;
- }
-
- png_crc_read(png_ptr, buf, 9);
-
- if (png_crc_finish(png_ptr, 0) != 0)
- return;
-
- offset_x = png_get_int_32(buf);
- offset_y = png_get_int_32(buf + 4);
- unit_type = buf[8];
- png_set_oFFs(png_ptr, info_ptr, offset_x, offset_y, unit_type);
-}
-#endif
-
-#ifdef PNG_READ_pCAL_SUPPORTED
-/* Read the pCAL chunk (described in the PNG Extensions document) */
-void /* PRIVATE */
-png_handle_pCAL(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- png_int_32 X0, X1;
- png_byte type, nparams;
- png_bytep buffer, buf, units, endptr;
- png_charpp params;
- int i;
-
- png_debug(1, "in png_handle_pCAL");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of place");
- return;
- }
-
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "duplicate");
- return;
- }
-
- png_debug1(2, "Allocating and reading pCAL chunk data (%u bytes)",
- length + 1);
-
- buffer = png_read_buffer(png_ptr, length+1, 2/*silent*/);
-
- if (buffer == NULL)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of memory");
- return;
- }
-
- png_crc_read(png_ptr, buffer, length);
-
- if (png_crc_finish(png_ptr, 0) != 0)
- return;
-
- buffer[length] = 0; /* Null terminate the last string */
-
- png_debug(3, "Finding end of pCAL purpose string");
- for (buf = buffer; *buf; buf++)
- /* Empty loop */ ;
-
- endptr = buffer + length;
-
- /* We need to have at least 12 bytes after the purpose string
- * in order to get the parameter information.
- */
- if (endptr - buf <= 12)
- {
- png_chunk_benign_error(png_ptr, "invalid");
- return;
- }
-
- png_debug(3, "Reading pCAL X0, X1, type, nparams, and units");
- X0 = png_get_int_32((png_bytep)buf+1);
- X1 = png_get_int_32((png_bytep)buf+5);
- type = buf[9];
- nparams = buf[10];
- units = buf + 11;
-
- png_debug(3, "Checking pCAL equation type and number of parameters");
- /* Check that we have the right number of parameters for known
- * equation types.
- */
- if ((type == PNG_EQUATION_LINEAR && nparams != 2) ||
- (type == PNG_EQUATION_BASE_E && nparams != 3) ||
- (type == PNG_EQUATION_ARBITRARY && nparams != 3) ||
- (type == PNG_EQUATION_HYPERBOLIC && nparams != 4))
- {
- png_chunk_benign_error(png_ptr, "invalid parameter count");
- return;
- }
-
- else if (type >= PNG_EQUATION_LAST)
- {
- png_chunk_benign_error(png_ptr, "unrecognized equation type");
- }
-
- for (buf = units; *buf; buf++)
- /* Empty loop to move past the units string. */ ;
-
- png_debug(3, "Allocating pCAL parameters array");
-
- params = png_voidcast(png_charpp, png_malloc_warn(png_ptr,
- nparams * (sizeof (png_charp))));
-
- if (params == NULL)
- {
- png_chunk_benign_error(png_ptr, "out of memory");
- return;
- }
-
- /* Get pointers to the start of each parameter string. */
- for (i = 0; i < nparams; i++)
- {
- buf++; /* Skip the null string terminator from previous parameter. */
-
- png_debug1(3, "Reading pCAL parameter %d", i);
-
- for (params[i] = (png_charp)buf; buf <= endptr && *buf != 0; buf++)
- /* Empty loop to move past each parameter string */ ;
-
- /* Make sure we haven't run out of data yet */
- if (buf > endptr)
- {
- png_free(png_ptr, params);
- png_chunk_benign_error(png_ptr, "invalid data");
- return;
- }
- }
-
- png_set_pCAL(png_ptr, info_ptr, (png_charp)buffer, X0, X1, type, nparams,
- (png_charp)units, params);
-
- png_free(png_ptr, params);
-}
-#endif
-
-#ifdef PNG_READ_sCAL_SUPPORTED
-/* Read the sCAL chunk */
-void /* PRIVATE */
-png_handle_sCAL(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- png_bytep buffer;
- size_t i;
- int state;
-
- png_debug(1, "in png_handle_sCAL");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of place");
- return;
- }
-
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sCAL) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "duplicate");
- return;
- }
-
- /* Need unit type, width, \0, height: minimum 4 bytes */
- else if (length < 4)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "invalid");
- return;
- }
-
- png_debug1(2, "Allocating and reading sCAL chunk data (%u bytes)",
- length + 1);
-
- buffer = png_read_buffer(png_ptr, length+1, 2/*silent*/);
-
- if (buffer == NULL)
- {
- png_chunk_benign_error(png_ptr, "out of memory");
- png_crc_finish(png_ptr, length);
- return;
- }
-
- png_crc_read(png_ptr, buffer, length);
- buffer[length] = 0; /* Null terminate the last string */
-
- if (png_crc_finish(png_ptr, 0) != 0)
- return;
-
- /* Validate the unit. */
- if (buffer[0] != 1 && buffer[0] != 2)
- {
- png_chunk_benign_error(png_ptr, "invalid unit");
- return;
- }
-
- /* Validate the ASCII numbers, need two ASCII numbers separated by
- * a '\0' and they need to fit exactly in the chunk data.
- */
- i = 1;
- state = 0;
-
- if (png_check_fp_number((png_const_charp)buffer, length, &state, &i) == 0 ||
- i >= length || buffer[i++] != 0)
- png_chunk_benign_error(png_ptr, "bad width format");
-
- else if (PNG_FP_IS_POSITIVE(state) == 0)
- png_chunk_benign_error(png_ptr, "non-positive width");
-
- else
- {
- size_t heighti = i;
-
- state = 0;
- if (png_check_fp_number((png_const_charp)buffer, length,
- &state, &i) == 0 || i != length)
- png_chunk_benign_error(png_ptr, "bad height format");
-
- else if (PNG_FP_IS_POSITIVE(state) == 0)
- png_chunk_benign_error(png_ptr, "non-positive height");
-
- else
- /* This is the (only) success case. */
- png_set_sCAL_s(png_ptr, info_ptr, buffer[0],
- (png_charp)buffer+1, (png_charp)buffer+heighti);
- }
-}
-#endif
-
-#ifdef PNG_READ_tIME_SUPPORTED
-void /* PRIVATE */
-png_handle_tIME(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- png_byte buf[7];
- png_time mod_time;
-
- png_debug(1, "in png_handle_tIME");
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME) != 0)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "duplicate");
- return;
- }
-
- if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
- png_ptr->mode |= PNG_AFTER_IDAT;
-
- if (length != 7)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "invalid");
- return;
- }
-
- png_crc_read(png_ptr, buf, 7);
-
- if (png_crc_finish(png_ptr, 0) != 0)
- return;
-
- mod_time.second = buf[6];
- mod_time.minute = buf[5];
- mod_time.hour = buf[4];
- mod_time.day = buf[3];
- mod_time.month = buf[2];
- mod_time.year = png_get_uint_16(buf);
-
- png_set_tIME(png_ptr, info_ptr, &mod_time);
-}
-#endif
-
-#ifdef PNG_READ_tEXt_SUPPORTED
-/* Note: this does not properly handle chunks that are > 64K under DOS */
-void /* PRIVATE */
-png_handle_tEXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- png_text text_info;
- png_bytep buffer;
- png_charp key;
- png_charp text;
- png_uint_32 skip = 0;
-
- png_debug(1, "in png_handle_tEXt");
-
-#ifdef PNG_USER_LIMITS_SUPPORTED
- if (png_ptr->user_chunk_cache_max != 0)
- {
- if (png_ptr->user_chunk_cache_max == 1)
- {
- png_crc_finish(png_ptr, length);
- return;
- }
-
- if (--png_ptr->user_chunk_cache_max == 1)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "no space in chunk cache");
- return;
- }
- }
-#endif
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
- png_ptr->mode |= PNG_AFTER_IDAT;
-
-#ifdef PNG_MAX_MALLOC_64K
- if (length > 65535U)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "too large to fit in memory");
- return;
- }
-#endif
-
- buffer = png_read_buffer(png_ptr, length+1, 1/*warn*/);
-
- if (buffer == NULL)
- {
- png_chunk_benign_error(png_ptr, "out of memory");
- return;
- }
-
- png_crc_read(png_ptr, buffer, length);
-
- if (png_crc_finish(png_ptr, skip) != 0)
- return;
-
- key = (png_charp)buffer;
- key[length] = 0;
-
- for (text = key; *text; text++)
- /* Empty loop to find end of key */ ;
-
- if (text != key + length)
- text++;
-
- text_info.compression = PNG_TEXT_COMPRESSION_NONE;
- text_info.key = key;
- text_info.lang = NULL;
- text_info.lang_key = NULL;
- text_info.itxt_length = 0;
- text_info.text = text;
- text_info.text_length = strlen(text);
-
- if (png_set_text_2(png_ptr, info_ptr, &text_info, 1) != 0)
- png_warning(png_ptr, "Insufficient memory to process text chunk");
-}
-#endif
-
-#ifdef PNG_READ_zTXt_SUPPORTED
-/* Note: this does not correctly handle chunks that are > 64K under DOS */
-void /* PRIVATE */
-png_handle_zTXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- png_const_charp errmsg = NULL;
- png_bytep buffer;
- png_uint_32 keyword_length;
-
- png_debug(1, "in png_handle_zTXt");
-
-#ifdef PNG_USER_LIMITS_SUPPORTED
- if (png_ptr->user_chunk_cache_max != 0)
- {
- if (png_ptr->user_chunk_cache_max == 1)
- {
- png_crc_finish(png_ptr, length);
- return;
- }
-
- if (--png_ptr->user_chunk_cache_max == 1)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "no space in chunk cache");
- return;
- }
- }
-#endif
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
- png_ptr->mode |= PNG_AFTER_IDAT;
-
- /* Note, "length" is sufficient here; we won't be adding
- * a null terminator later.
- */
- buffer = png_read_buffer(png_ptr, length, 2/*silent*/);
-
- if (buffer == NULL)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of memory");
- return;
- }
-
- png_crc_read(png_ptr, buffer, length);
-
- if (png_crc_finish(png_ptr, 0) != 0)
- return;
-
- /* TODO: also check that the keyword contents match the spec! */
- for (keyword_length = 0;
- keyword_length < length && buffer[keyword_length] != 0;
- ++keyword_length)
- /* Empty loop to find end of name */ ;
-
- if (keyword_length > 79 || keyword_length < 1)
- errmsg = "bad keyword";
-
- /* zTXt must have some LZ data after the keyword, although it may expand to
- * zero bytes; we need a '\0' at the end of the keyword, the compression type
- * then the LZ data:
- */
- else if (keyword_length + 3 > length)
- errmsg = "truncated";
-
- else if (buffer[keyword_length+1] != PNG_COMPRESSION_TYPE_BASE)
- errmsg = "unknown compression type";
-
- else
- {
- png_alloc_size_t uncompressed_length = PNG_SIZE_MAX;
-
- /* TODO: at present png_decompress_chunk imposes a single application
- * level memory limit, this should be split to different values for iCCP
- * and text chunks.
- */
- if (png_decompress_chunk(png_ptr, length, keyword_length+2,
- &uncompressed_length, 1/*terminate*/) == Z_STREAM_END)
- {
- png_text text;
-
- if (png_ptr->read_buffer == NULL)
- errmsg="Read failure in png_handle_zTXt";
- else
- {
- /* It worked; png_ptr->read_buffer now looks like a tEXt chunk
- * except for the extra compression type byte and the fact that
- * it isn't necessarily '\0' terminated.
- */
- buffer = png_ptr->read_buffer;
- buffer[uncompressed_length+(keyword_length+2)] = 0;
-
- text.compression = PNG_TEXT_COMPRESSION_zTXt;
- text.key = (png_charp)buffer;
- text.text = (png_charp)(buffer + keyword_length+2);
- text.text_length = uncompressed_length;
- text.itxt_length = 0;
- text.lang = NULL;
- text.lang_key = NULL;
-
- if (png_set_text_2(png_ptr, info_ptr, &text, 1) != 0)
- errmsg = "insufficient memory";
- }
- }
-
- else
- errmsg = png_ptr->zstream.msg;
- }
-
- if (errmsg != NULL)
- png_chunk_benign_error(png_ptr, errmsg);
-}
-#endif
-
-#ifdef PNG_READ_iTXt_SUPPORTED
-/* Note: this does not correctly handle chunks that are > 64K under DOS */
-void /* PRIVATE */
-png_handle_iTXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
-{
- png_const_charp errmsg = NULL;
- png_bytep buffer;
- png_uint_32 prefix_length;
-
- png_debug(1, "in png_handle_iTXt");
-
-#ifdef PNG_USER_LIMITS_SUPPORTED
- if (png_ptr->user_chunk_cache_max != 0)
- {
- if (png_ptr->user_chunk_cache_max == 1)
- {
- png_crc_finish(png_ptr, length);
- return;
- }
-
- if (--png_ptr->user_chunk_cache_max == 1)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "no space in chunk cache");
- return;
- }
- }
-#endif
-
- if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
- png_chunk_error(png_ptr, "missing IHDR");
-
- if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
- png_ptr->mode |= PNG_AFTER_IDAT;
-
- buffer = png_read_buffer(png_ptr, length+1, 1/*warn*/);
-
- if (buffer == NULL)
- {
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "out of memory");
- return;
- }
-
- png_crc_read(png_ptr, buffer, length);
-
- if (png_crc_finish(png_ptr, 0) != 0)
- return;
-
- /* First the keyword. */
- for (prefix_length=0;
- prefix_length < length && buffer[prefix_length] != 0;
- ++prefix_length)
- /* Empty loop */ ;
-
- /* Perform a basic check on the keyword length here. */
- if (prefix_length > 79 || prefix_length < 1)
- errmsg = "bad keyword";
-
- /* Expect keyword, compression flag, compression type, language, translated
- * keyword (both may be empty but are 0 terminated) then the text, which may
- * be empty.
- */
- else if (prefix_length + 5 > length)
- errmsg = "truncated";
-
- else if (buffer[prefix_length+1] == 0 ||
- (buffer[prefix_length+1] == 1 &&
- buffer[prefix_length+2] == PNG_COMPRESSION_TYPE_BASE))
- {
- int compressed = buffer[prefix_length+1] != 0;
- png_uint_32 language_offset, translated_keyword_offset;
- png_alloc_size_t uncompressed_length = 0;
-
- /* Now the language tag */
- prefix_length += 3;
- language_offset = prefix_length;
-
- for (; prefix_length < length && buffer[prefix_length] != 0;
- ++prefix_length)
- /* Empty loop */ ;
-
- /* WARNING: the length may be invalid here, this is checked below. */
- translated_keyword_offset = ++prefix_length;
-
- for (; prefix_length < length && buffer[prefix_length] != 0;
- ++prefix_length)
- /* Empty loop */ ;
-
- /* prefix_length should now be at the trailing '\0' of the translated
- * keyword, but it may already be over the end. None of this arithmetic
- * can overflow because chunks are at most 2^31 bytes long, but on 16-bit
- * systems the available allocation may overflow.
- */
- ++prefix_length;
-
- if (compressed == 0 && prefix_length <= length)
- uncompressed_length = length - prefix_length;
-
- else if (compressed != 0 && prefix_length < length)
- {
- uncompressed_length = PNG_SIZE_MAX;
-
- /* TODO: at present png_decompress_chunk imposes a single application
- * level memory limit, this should be split to different values for
- * iCCP and text chunks.
- */
- if (png_decompress_chunk(png_ptr, length, prefix_length,
- &uncompressed_length, 1/*terminate*/) == Z_STREAM_END)
- buffer = png_ptr->read_buffer;
-
- else
- errmsg = png_ptr->zstream.msg;
- }
-
- else
- errmsg = "truncated";
-
- if (errmsg == NULL)
- {
- png_text text;
-
- buffer[uncompressed_length+prefix_length] = 0;
-
- if (compressed == 0)
- text.compression = PNG_ITXT_COMPRESSION_NONE;
-
- else
- text.compression = PNG_ITXT_COMPRESSION_zTXt;
-
- text.key = (png_charp)buffer;
- text.lang = (png_charp)buffer + language_offset;
- text.lang_key = (png_charp)buffer + translated_keyword_offset;
- text.text = (png_charp)buffer + prefix_length;
- text.text_length = 0;
- text.itxt_length = uncompressed_length;
-
- if (png_set_text_2(png_ptr, info_ptr, &text, 1) != 0)
- errmsg = "insufficient memory";
- }
- }
-
- else
- errmsg = "bad compression info";
-
- if (errmsg != NULL)
- png_chunk_benign_error(png_ptr, errmsg);
-}
-#endif
-
-#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
-/* Utility function for png_handle_unknown; set up png_ptr::unknown_chunk */
-static int
-png_cache_unknown_chunk(png_structrp png_ptr, png_uint_32 length)
-{
- png_alloc_size_t limit = PNG_SIZE_MAX;
-
- if (png_ptr->unknown_chunk.data != NULL)
- {
- png_free(png_ptr, png_ptr->unknown_chunk.data);
- png_ptr->unknown_chunk.data = NULL;
- }
-
-# ifdef PNG_SET_USER_LIMITS_SUPPORTED
- if (png_ptr->user_chunk_malloc_max > 0 &&
- png_ptr->user_chunk_malloc_max < limit)
- limit = png_ptr->user_chunk_malloc_max;
-
-# elif PNG_USER_CHUNK_MALLOC_MAX > 0
- if (PNG_USER_CHUNK_MALLOC_MAX < limit)
- limit = PNG_USER_CHUNK_MALLOC_MAX;
-# endif
-
- if (length <= limit)
- {
- PNG_CSTRING_FROM_CHUNK(png_ptr->unknown_chunk.name, png_ptr->chunk_name);
- /* The following is safe because of the PNG_SIZE_MAX init above */
- png_ptr->unknown_chunk.size = (size_t)length/*SAFE*/;
- /* 'mode' is a flag array, only the bottom four bits matter here */
- png_ptr->unknown_chunk.location = (png_byte)png_ptr->mode/*SAFE*/;
-
- if (length == 0)
- png_ptr->unknown_chunk.data = NULL;
-
- else
- {
- /* Do a 'warn' here - it is handled below. */
- png_ptr->unknown_chunk.data = png_voidcast(png_bytep,
- png_malloc_warn(png_ptr, length));
- }
- }
-
- if (png_ptr->unknown_chunk.data == NULL && length > 0)
- {
- /* This is benign because we clean up correctly */
- png_crc_finish(png_ptr, length);
- png_chunk_benign_error(png_ptr, "unknown chunk exceeds memory limits");
- return 0;
- }
-
- else
- {
- if (length > 0)
- png_crc_read(png_ptr, png_ptr->unknown_chunk.data, length);
- png_crc_finish(png_ptr, 0);
- return 1;
- }
-}
-#endif /* READ_UNKNOWN_CHUNKS */
-
-/* Handle an unknown, or known but disabled, chunk */
-void /* PRIVATE */
-png_handle_unknown(png_structrp png_ptr, png_inforp info_ptr,
- png_uint_32 length, int keep)
-{
- int handled = 0; /* the chunk was handled */
-
- png_debug(1, "in png_handle_unknown");
-
-#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
- /* NOTE: this code is based on the code in libpng-1.4.12 except for fixing
- * the bug which meant that setting a non-default behavior for a specific
- * chunk would be ignored (the default was always used unless a user
- * callback was installed).
- *
- * 'keep' is the value from the png_chunk_unknown_handling, the setting for
- * this specific chunk_name, if PNG_HANDLE_AS_UNKNOWN_SUPPORTED, if not it
- * will always be PNG_HANDLE_CHUNK_AS_DEFAULT and it needs to be set here.
- * This is just an optimization to avoid multiple calls to the lookup
- * function.
- */
-# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
-# ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
- keep = png_chunk_unknown_handling(png_ptr, png_ptr->chunk_name);
-# endif
-# endif
-
- /* One of the following methods will read the chunk or skip it (at least one
- * of these is always defined because this is the only way to switch on
- * PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
- */
-# ifdef PNG_READ_USER_CHUNKS_SUPPORTED
- /* The user callback takes precedence over the chunk keep value, but the
- * keep value is still required to validate a save of a critical chunk.
- */
- if (png_ptr->read_user_chunk_fn != NULL)
- {
- if (png_cache_unknown_chunk(png_ptr, length) != 0)
- {
- /* Callback to user unknown chunk handler */
- int ret = (*(png_ptr->read_user_chunk_fn))(png_ptr,
- &png_ptr->unknown_chunk);
-
- /* ret is:
- * negative: An error occurred; png_chunk_error will be called.
- * zero: The chunk was not handled, the chunk will be discarded
- * unless png_set_keep_unknown_chunks has been used to set
- * a 'keep' behavior for this particular chunk, in which
- * case that will be used. A critical chunk will cause an
- * error at this point unless it is to be saved.
- * positive: The chunk was handled, libpng will ignore/discard it.
- */
- if (ret < 0)
- png_chunk_error(png_ptr, "error in user chunk");
-
- else if (ret == 0)
- {
- /* If the keep value is 'default' or 'never' override it, but
- * still error out on critical chunks unless the keep value is
- * 'always' While this is weird it is the behavior in 1.4.12.
- * A possible improvement would be to obey the value set for the
- * chunk, but this would be an API change that would probably
- * damage some applications.
- *
- * The png_app_warning below catches the case that matters, where
- * the application has not set specific save or ignore for this
- * chunk or global save or ignore.
- */
- if (keep < PNG_HANDLE_CHUNK_IF_SAFE)
- {
-# ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
- if (png_ptr->unknown_default < PNG_HANDLE_CHUNK_IF_SAFE)
- {
- png_chunk_warning(png_ptr, "Saving unknown chunk:");
- png_app_warning(png_ptr,
- "forcing save of an unhandled chunk;"
- " please call png_set_keep_unknown_chunks");
- /* with keep = PNG_HANDLE_CHUNK_IF_SAFE */
- }
-# endif
- keep = PNG_HANDLE_CHUNK_IF_SAFE;
- }
- }
-
- else /* chunk was handled */
- {
- handled = 1;
- /* Critical chunks can be safely discarded at this point. */
- keep = PNG_HANDLE_CHUNK_NEVER;
- }
- }
-
- else
- keep = PNG_HANDLE_CHUNK_NEVER; /* insufficient memory */
- }
-
- else
- /* Use the SAVE_UNKNOWN_CHUNKS code or skip the chunk */
-# endif /* READ_USER_CHUNKS */
-
-# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
- {
- /* keep is currently just the per-chunk setting, if there was no
- * setting change it to the global default now (not that this may
- * still be AS_DEFAULT) then obtain the cache of the chunk if required,
- * if not simply skip the chunk.
- */
- if (keep == PNG_HANDLE_CHUNK_AS_DEFAULT)
- keep = png_ptr->unknown_default;
-
- if (keep == PNG_HANDLE_CHUNK_ALWAYS ||
- (keep == PNG_HANDLE_CHUNK_IF_SAFE &&
- PNG_CHUNK_ANCILLARY(png_ptr->chunk_name)))
- {
- if (png_cache_unknown_chunk(png_ptr, length) == 0)
- keep = PNG_HANDLE_CHUNK_NEVER;
- }
-
- else
- png_crc_finish(png_ptr, length);
- }
-# else
-# ifndef PNG_READ_USER_CHUNKS_SUPPORTED
-# error no method to support READ_UNKNOWN_CHUNKS
-# endif
-
- {
- /* If here there is no read callback pointer set and no support is
- * compiled in to just save the unknown chunks, so simply skip this
- * chunk. If 'keep' is something other than AS_DEFAULT or NEVER then
- * the app has erroneously asked for unknown chunk saving when there
- * is no support.
- */
- if (keep > PNG_HANDLE_CHUNK_NEVER)
- png_app_error(png_ptr, "no unknown chunk support available");
-
- png_crc_finish(png_ptr, length);
- }
-# endif
-
-# ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
- /* Now store the chunk in the chunk list if appropriate, and if the limits
- * permit it.
- */
- if (keep == PNG_HANDLE_CHUNK_ALWAYS ||
- (keep == PNG_HANDLE_CHUNK_IF_SAFE &&
- PNG_CHUNK_ANCILLARY(png_ptr->chunk_name)))
- {
-# ifdef PNG_USER_LIMITS_SUPPORTED
- switch (png_ptr->user_chunk_cache_max)
- {
- case 2:
- png_ptr->user_chunk_cache_max = 1;
- png_chunk_benign_error(png_ptr, "no space in chunk cache");
- /* FALLTHROUGH */
- case 1:
- /* NOTE: prior to 1.6.0 this case resulted in an unknown critical
- * chunk being skipped, now there will be a hard error below.
- */
- break;
-
- default: /* not at limit */
- --(png_ptr->user_chunk_cache_max);
- /* FALLTHROUGH */
- case 0: /* no limit */
-# endif /* USER_LIMITS */
- /* Here when the limit isn't reached or when limits are compiled
- * out; store the chunk.
- */
- png_set_unknown_chunks(png_ptr, info_ptr,
- &png_ptr->unknown_chunk, 1);
- handled = 1;
-# ifdef PNG_USER_LIMITS_SUPPORTED
- break;
- }
-# endif
- }
-# else /* no store support: the chunk must be handled by the user callback */
- PNG_UNUSED(info_ptr)
-# endif
-
- /* Regardless of the error handling below the cached data (if any) can be
- * freed now. Notice that the data is not freed if there is a png_error, but
- * it will be freed by destroy_read_struct.
- */
- if (png_ptr->unknown_chunk.data != NULL)
- png_free(png_ptr, png_ptr->unknown_chunk.data);
- png_ptr->unknown_chunk.data = NULL;
-
-#else /* !PNG_READ_UNKNOWN_CHUNKS_SUPPORTED */
- /* There is no support to read an unknown chunk, so just skip it. */
- png_crc_finish(png_ptr, length);
- PNG_UNUSED(info_ptr)
- PNG_UNUSED(keep)
-#endif /* !READ_UNKNOWN_CHUNKS */
-
- /* Check for unhandled critical chunks */
- if (handled == 0 && PNG_CHUNK_CRITICAL(png_ptr->chunk_name))
- png_chunk_error(png_ptr, "unhandled critical chunk");
-}
-
-/* This function is called to verify that a chunk name is valid.
- * This function can't have the "critical chunk check" incorporated
- * into it, since in the future we will need to be able to call user
- * functions to handle unknown critical chunks after we check that
- * the chunk name itself is valid.
- */
-
-/* Bit hacking: the test for an invalid byte in the 4 byte chunk name is:
- *
- * ((c) < 65 || (c) > 122 || ((c) > 90 && (c) < 97))
- */
-
-void /* PRIVATE */
-png_check_chunk_name(png_const_structrp png_ptr, png_uint_32 chunk_name)
-{
- int i;
- png_uint_32 cn=chunk_name;
-
- png_debug(1, "in png_check_chunk_name");
-
- for (i=1; i<=4; ++i)
- {
- int c = cn & 0xff;
-
- if (c < 65 || c > 122 || (c > 90 && c < 97))
- png_chunk_error(png_ptr, "invalid chunk type");
-
- cn >>= 8;
- }
-}
-
-void /* PRIVATE */
-png_check_chunk_length(png_const_structrp png_ptr, png_uint_32 length)
-{
- png_alloc_size_t limit = PNG_UINT_31_MAX;
-
-# ifdef PNG_SET_USER_LIMITS_SUPPORTED
- if (png_ptr->user_chunk_malloc_max > 0 &&
- png_ptr->user_chunk_malloc_max < limit)
- limit = png_ptr->user_chunk_malloc_max;
-# elif PNG_USER_CHUNK_MALLOC_MAX > 0
- if (PNG_USER_CHUNK_MALLOC_MAX < limit)
- limit = PNG_USER_CHUNK_MALLOC_MAX;
-# endif
- if (png_ptr->chunk_name == png_IDAT)
- {
- png_alloc_size_t idat_limit = PNG_UINT_31_MAX;
- size_t row_factor =
- (size_t)png_ptr->width
- * (size_t)png_ptr->channels
- * (png_ptr->bit_depth > 8? 2: 1)
- + 1
- + (png_ptr->interlaced? 6: 0);
- if (png_ptr->height > PNG_UINT_32_MAX/row_factor)
- idat_limit = PNG_UINT_31_MAX;
- else
- idat_limit = png_ptr->height * row_factor;
- row_factor = row_factor > 32566? 32566 : row_factor;
- idat_limit += 6 + 5*(idat_limit/row_factor+1); /* zlib+deflate overhead */
- idat_limit=idat_limit < PNG_UINT_31_MAX? idat_limit : PNG_UINT_31_MAX;
- limit = limit < idat_limit? idat_limit : limit;
- }
-
- if (length > limit)
- {
- png_debug2(0," length = %lu, limit = %lu",
- (unsigned long)length,(unsigned long)limit);
- png_chunk_error(png_ptr, "chunk data is too large");
- }
-}
-
-/* Combines the row recently read in with the existing pixels in the row. This
- * routine takes care of alpha and transparency if requested. This routine also
- * handles the two methods of progressive display of interlaced images,
- * depending on the 'display' value; if 'display' is true then the whole row
- * (dp) is filled from the start by replicating the available pixels. If
- * 'display' is false only those pixels present in the pass are filled in.
- */
-void /* PRIVATE */
-png_combine_row(png_const_structrp png_ptr, png_bytep dp, int display)
-{
- unsigned int pixel_depth = png_ptr->transformed_pixel_depth;
- png_const_bytep sp = png_ptr->row_buf + 1;
- png_alloc_size_t row_width = png_ptr->width;
- unsigned int pass = png_ptr->pass;
- png_bytep end_ptr = 0;
- png_byte end_byte = 0;
- unsigned int end_mask;
-
- png_debug(1, "in png_combine_row");
-
- /* Added in 1.5.6: it should not be possible to enter this routine until at
- * least one row has been read from the PNG data and transformed.
- */
- if (pixel_depth == 0)
- png_error(png_ptr, "internal row logic error");
-
- /* Added in 1.5.4: the pixel depth should match the information returned by
- * any call to png_read_update_info at this point. Do not continue if we got
- * this wrong.
- */
- if (png_ptr->info_rowbytes != 0 && png_ptr->info_rowbytes !=
- PNG_ROWBYTES(pixel_depth, row_width))
- png_error(png_ptr, "internal row size calculation error");
-
- /* Don't expect this to ever happen: */
- if (row_width == 0)
- png_error(png_ptr, "internal row width error");
-
- /* Preserve the last byte in cases where only part of it will be overwritten,
- * the multiply below may overflow, we don't care because ANSI-C guarantees
- * we get the low bits.
- */
- end_mask = (pixel_depth * row_width) & 7;
- if (end_mask != 0)
- {
- /* end_ptr == NULL is a flag to say do nothing */
- end_ptr = dp + PNG_ROWBYTES(pixel_depth, row_width) - 1;
- end_byte = *end_ptr;
-# ifdef PNG_READ_PACKSWAP_SUPPORTED
- if ((png_ptr->transformations & PNG_PACKSWAP) != 0)
- /* little-endian byte */
- end_mask = (unsigned int)(0xff << end_mask);
-
- else /* big-endian byte */
-# endif
- end_mask = 0xff >> end_mask;
- /* end_mask is now the bits to *keep* from the destination row */
- }
-
- /* For non-interlaced images this reduces to a memcpy(). A memcpy()
- * will also happen if interlacing isn't supported or if the application
- * does not call png_set_interlace_handling(). In the latter cases the
- * caller just gets a sequence of the unexpanded rows from each interlace
- * pass.
- */
-#ifdef PNG_READ_INTERLACING_SUPPORTED
- if (png_ptr->interlaced != 0 &&
- (png_ptr->transformations & PNG_INTERLACE) != 0 &&
- pass < 6 && (display == 0 ||
- /* The following copies everything for 'display' on passes 0, 2 and 4. */
- (display == 1 && (pass & 1) != 0)))
- {
- /* Narrow images may have no bits in a pass; the caller should handle
- * this, but this test is cheap:
- */
- if (row_width <= PNG_PASS_START_COL(pass))
- return;
-
- if (pixel_depth < 8)
- {
- /* For pixel depths up to 4 bpp the 8-pixel mask can be expanded to fit
- * into 32 bits, then a single loop over the bytes using the four byte
- * values in the 32-bit mask can be used. For the 'display' option the
- * expanded mask may also not require any masking within a byte. To
- * make this work the PACKSWAP option must be taken into account - it
- * simply requires the pixels to be reversed in each byte.
- *
- * The 'regular' case requires a mask for each of the first 6 passes,
- * the 'display' case does a copy for the even passes in the range
- * 0..6. This has already been handled in the test above.
- *
- * The masks are arranged as four bytes with the first byte to use in
- * the lowest bits (little-endian) regardless of the order (PACKSWAP or
- * not) of the pixels in each byte.
- *
- * NOTE: the whole of this logic depends on the caller of this function
- * only calling it on rows appropriate to the pass. This function only
- * understands the 'x' logic; the 'y' logic is handled by the caller.
- *
- * The following defines allow generation of compile time constant bit
- * masks for each pixel depth and each possibility of swapped or not
- * swapped bytes. Pass 'p' is in the range 0..6; 'x', a pixel index,
- * is in the range 0..7; and the result is 1 if the pixel is to be
- * copied in the pass, 0 if not. 'S' is for the sparkle method, 'B'
- * for the block method.
- *
- * With some compilers a compile time expression of the general form:
- *
- * (shift >= 32) ? (a >> (shift-32)) : (b >> shift)
- *
- * Produces warnings with values of 'shift' in the range 33 to 63
- * because the right hand side of the ?: expression is evaluated by
- * the compiler even though it isn't used. Microsoft Visual C (various
- * versions) and the Intel C compiler are known to do this. To avoid
- * this the following macros are used in 1.5.6. This is a temporary
- * solution to avoid destabilizing the code during the release process.
- */
-# if PNG_USE_COMPILE_TIME_MASKS
-# define PNG_LSR(x,s) ((x)>>((s) & 0x1f))
-# define PNG_LSL(x,s) ((x)<<((s) & 0x1f))
-# else
-# define PNG_LSR(x,s) ((x)>>(s))
-# define PNG_LSL(x,s) ((x)<<(s))
-# endif
-# define S_COPY(p,x) (((p)<4 ? PNG_LSR(0x80088822,(3-(p))*8+(7-(x))) :\
- PNG_LSR(0xaa55ff00,(7-(p))*8+(7-(x)))) & 1)
-# define B_COPY(p,x) (((p)<4 ? PNG_LSR(0xff0fff33,(3-(p))*8+(7-(x))) :\
- PNG_LSR(0xff55ff00,(7-(p))*8+(7-(x)))) & 1)
-
- /* Return a mask for pass 'p' pixel 'x' at depth 'd'. The mask is
- * little endian - the first pixel is at bit 0 - however the extra
- * parameter 's' can be set to cause the mask position to be swapped
- * within each byte, to match the PNG format. This is done by XOR of
- * the shift with 7, 6 or 4 for bit depths 1, 2 and 4.
- */
-# define PIXEL_MASK(p,x,d,s) \
- (PNG_LSL(((PNG_LSL(1U,(d)))-1),(((x)*(d))^((s)?8-(d):0))))
-
- /* Hence generate the appropriate 'block' or 'sparkle' pixel copy mask.
- */
-# define S_MASKx(p,x,d,s) (S_COPY(p,x)?PIXEL_MASK(p,x,d,s):0)
-# define B_MASKx(p,x,d,s) (B_COPY(p,x)?PIXEL_MASK(p,x,d,s):0)
-
- /* Combine 8 of these to get the full mask. For the 1-bpp and 2-bpp
- * cases the result needs replicating, for the 4-bpp case the above
- * generates a full 32 bits.
- */
-# define MASK_EXPAND(m,d) ((m)*((d)==1?0x01010101:((d)==2?0x00010001:1)))
-
-# define S_MASK(p,d,s) MASK_EXPAND(S_MASKx(p,0,d,s) + S_MASKx(p,1,d,s) +\
- S_MASKx(p,2,d,s) + S_MASKx(p,3,d,s) + S_MASKx(p,4,d,s) +\
- S_MASKx(p,5,d,s) + S_MASKx(p,6,d,s) + S_MASKx(p,7,d,s), d)
-
-# define B_MASK(p,d,s) MASK_EXPAND(B_MASKx(p,0,d,s) + B_MASKx(p,1,d,s) +\
- B_MASKx(p,2,d,s) + B_MASKx(p,3,d,s) + B_MASKx(p,4,d,s) +\
- B_MASKx(p,5,d,s) + B_MASKx(p,6,d,s) + B_MASKx(p,7,d,s), d)
-
-#if PNG_USE_COMPILE_TIME_MASKS
- /* Utility macros to construct all the masks for a depth/swap
- * combination. The 's' parameter says whether the format is PNG
- * (big endian bytes) or not. Only the three odd-numbered passes are
- * required for the display/block algorithm.
- */
-# define S_MASKS(d,s) { S_MASK(0,d,s), S_MASK(1,d,s), S_MASK(2,d,s),\
- S_MASK(3,d,s), S_MASK(4,d,s), S_MASK(5,d,s) }
-
-# define B_MASKS(d,s) { B_MASK(1,d,s), B_MASK(3,d,s), B_MASK(5,d,s) }
-
-# define DEPTH_INDEX(d) ((d)==1?0:((d)==2?1:2))
-
- /* Hence the pre-compiled masks indexed by PACKSWAP (or not), depth and
- * then pass:
- */
- static const png_uint_32 row_mask[2/*PACKSWAP*/][3/*depth*/][6] =
- {
- /* Little-endian byte masks for PACKSWAP */
- { S_MASKS(1,0), S_MASKS(2,0), S_MASKS(4,0) },
- /* Normal (big-endian byte) masks - PNG format */
- { S_MASKS(1,1), S_MASKS(2,1), S_MASKS(4,1) }
- };
-
- /* display_mask has only three entries for the odd passes, so index by
- * pass>>1.
- */
- static const png_uint_32 display_mask[2][3][3] =
- {
- /* Little-endian byte masks for PACKSWAP */
- { B_MASKS(1,0), B_MASKS(2,0), B_MASKS(4,0) },
- /* Normal (big-endian byte) masks - PNG format */
- { B_MASKS(1,1), B_MASKS(2,1), B_MASKS(4,1) }
- };
-
-# define MASK(pass,depth,display,png)\
- ((display)?display_mask[png][DEPTH_INDEX(depth)][pass>>1]:\
- row_mask[png][DEPTH_INDEX(depth)][pass])
-
-#else /* !PNG_USE_COMPILE_TIME_MASKS */
- /* This is the runtime alternative: it seems unlikely that this will
- * ever be either smaller or faster than the compile time approach.
- */
-# define MASK(pass,depth,display,png)\
- ((display)?B_MASK(pass,depth,png):S_MASK(pass,depth,png))
-#endif /* !USE_COMPILE_TIME_MASKS */
-
- /* Use the appropriate mask to copy the required bits. In some cases
- * the byte mask will be 0 or 0xff; optimize these cases. row_width is
- * the number of pixels, but the code copies bytes, so it is necessary
- * to special case the end.
- */
- png_uint_32 pixels_per_byte = 8 / pixel_depth;
- png_uint_32 mask;
-
-# ifdef PNG_READ_PACKSWAP_SUPPORTED
- if ((png_ptr->transformations & PNG_PACKSWAP) != 0)
- mask = MASK(pass, pixel_depth, display, 0);
-
- else
-# endif
- mask = MASK(pass, pixel_depth, display, 1);
-
- for (;;)
- {
- png_uint_32 m;
-
- /* It doesn't matter in the following if png_uint_32 has more than
- * 32 bits because the high bits always match those in m<<24; it is,
- * however, essential to use OR here, not +, because of this.
- */
- m = mask;
- mask = (m >> 8) | (m << 24); /* rotate right to good compilers */
- m &= 0xff;
-
- if (m != 0) /* something to copy */
- {
- if (m != 0xff)
- *dp = (png_byte)((*dp & ~m) | (*sp & m));
- else
- *dp = *sp;
- }
-
- /* NOTE: this may overwrite the last byte with garbage if the image
- * is not an exact number of bytes wide; libpng has always done
- * this.
- */
- if (row_width <= pixels_per_byte)
- break; /* May need to restore part of the last byte */
-
- row_width -= pixels_per_byte;
- ++dp;
- ++sp;
- }
- }
-
- else /* pixel_depth >= 8 */
- {
- unsigned int bytes_to_copy, bytes_to_jump;
-
- /* Validate the depth - it must be a multiple of 8 */
- if (pixel_depth & 7)
- png_error(png_ptr, "invalid user transform pixel depth");
-
- pixel_depth >>= 3; /* now in bytes */
- row_width *= pixel_depth;
-
- /* Regardless of pass number the Adam 7 interlace always results in a
- * fixed number of pixels to copy then to skip. There may be a
- * different number of pixels to skip at the start though.
- */
- {
- unsigned int offset = PNG_PASS_START_COL(pass) * pixel_depth;
-
- row_width -= offset;
- dp += offset;
- sp += offset;
- }
-
- /* Work out the bytes to copy. */
- if (display != 0)
- {
- /* When doing the 'block' algorithm the pixel in the pass gets
- * replicated to adjacent pixels. This is why the even (0,2,4,6)
- * passes are skipped above - the entire expanded row is copied.
- */
- bytes_to_copy = (1<<((6-pass)>>1)) * pixel_depth;
-
- /* But don't allow this number to exceed the actual row width. */
- if (bytes_to_copy > row_width)
- bytes_to_copy = (unsigned int)/*SAFE*/row_width;
- }
-
- else /* normal row; Adam7 only ever gives us one pixel to copy. */
- bytes_to_copy = pixel_depth;
-
- /* In Adam7 there is a constant offset between where the pixels go. */
- bytes_to_jump = PNG_PASS_COL_OFFSET(pass) * pixel_depth;
-
- /* And simply copy these bytes. Some optimization is possible here,
- * depending on the value of 'bytes_to_copy'. Special case the low
- * byte counts, which we know to be frequent.
- *
- * Notice that these cases all 'return' rather than 'break' - this
- * avoids an unnecessary test on whether to restore the last byte
- * below.
- */
- switch (bytes_to_copy)
- {
- case 1:
- for (;;)
- {
- *dp = *sp;
-
- if (row_width <= bytes_to_jump)
- return;
-
- dp += bytes_to_jump;
- sp += bytes_to_jump;
- row_width -= bytes_to_jump;
- }
-
- case 2:
- /* There is a possibility of a partial copy at the end here; this
- * slows the code down somewhat.
- */
- do
- {
- dp[0] = sp[0]; dp[1] = sp[1];
-
- if (row_width <= bytes_to_jump)
- return;
-
- sp += bytes_to_jump;
- dp += bytes_to_jump;
- row_width -= bytes_to_jump;
- }
- while (row_width > 1);
-
- /* And there can only be one byte left at this point: */
- *dp = *sp;
- return;
-
- case 3:
- /* This can only be the RGB case, so each copy is exactly one
- * pixel and it is not necessary to check for a partial copy.
- */
- for (;;)
- {
- dp[0] = sp[0]; dp[1] = sp[1]; dp[2] = sp[2];
-
- if (row_width <= bytes_to_jump)
- return;
-
- sp += bytes_to_jump;
- dp += bytes_to_jump;
- row_width -= bytes_to_jump;
- }
-
- default:
-#if PNG_ALIGN_TYPE != PNG_ALIGN_NONE
- /* Check for double byte alignment and, if possible, use a
- * 16-bit copy. Don't attempt this for narrow images - ones that
- * are less than an interlace panel wide. Don't attempt it for
- * wide bytes_to_copy either - use the memcpy there.
- */
- if (bytes_to_copy < 16 /*else use memcpy*/ &&
- png_isaligned(dp, png_uint_16) &&
- png_isaligned(sp, png_uint_16) &&
- bytes_to_copy % (sizeof (png_uint_16)) == 0 &&
- bytes_to_jump % (sizeof (png_uint_16)) == 0)
- {
- /* Everything is aligned for png_uint_16 copies, but try for
- * png_uint_32 first.
- */
- if (png_isaligned(dp, png_uint_32) &&
- png_isaligned(sp, png_uint_32) &&
- bytes_to_copy % (sizeof (png_uint_32)) == 0 &&
- bytes_to_jump % (sizeof (png_uint_32)) == 0)
- {
- png_uint_32p dp32 = png_aligncast(png_uint_32p,dp);
- png_const_uint_32p sp32 = png_aligncastconst(
- png_const_uint_32p, sp);
- size_t skip = (bytes_to_jump-bytes_to_copy) /
- (sizeof (png_uint_32));
-
- do
- {
- size_t c = bytes_to_copy;
- do
- {
- *dp32++ = *sp32++;
- c -= (sizeof (png_uint_32));
- }
- while (c > 0);
-
- if (row_width <= bytes_to_jump)
- return;
-
- dp32 += skip;
- sp32 += skip;
- row_width -= bytes_to_jump;
- }
- while (bytes_to_copy <= row_width);
-
- /* Get to here when the row_width truncates the final copy.
- * There will be 1-3 bytes left to copy, so don't try the
- * 16-bit loop below.
- */
- dp = (png_bytep)dp32;
- sp = (png_const_bytep)sp32;
- do
- *dp++ = *sp++;
- while (--row_width > 0);
- return;
- }
-
- /* Else do it in 16-bit quantities, but only if the size is
- * not too large.
- */
- else
- {
- png_uint_16p dp16 = png_aligncast(png_uint_16p, dp);
- png_const_uint_16p sp16 = png_aligncastconst(
- png_const_uint_16p, sp);
- size_t skip = (bytes_to_jump-bytes_to_copy) /
- (sizeof (png_uint_16));
-
- do
- {
- size_t c = bytes_to_copy;
- do
- {
- *dp16++ = *sp16++;
- c -= (sizeof (png_uint_16));
- }
- while (c > 0);
-
- if (row_width <= bytes_to_jump)
- return;
-
- dp16 += skip;
- sp16 += skip;
- row_width -= bytes_to_jump;
- }
- while (bytes_to_copy <= row_width);
-
- /* End of row - 1 byte left, bytes_to_copy > row_width: */
- dp = (png_bytep)dp16;
- sp = (png_const_bytep)sp16;
- do
- *dp++ = *sp++;
- while (--row_width > 0);
- return;
- }
- }
-#endif /* ALIGN_TYPE code */
-
- /* The true default - use a memcpy: */
- for (;;)
- {
- memcpy(dp, sp, bytes_to_copy);
-
- if (row_width <= bytes_to_jump)
- return;
-
- sp += bytes_to_jump;
- dp += bytes_to_jump;
- row_width -= bytes_to_jump;
- if (bytes_to_copy > row_width)
- bytes_to_copy = (unsigned int)/*SAFE*/row_width;
- }
- }
-
- /* NOT REACHED*/
- } /* pixel_depth >= 8 */
-
- /* Here if pixel_depth < 8 to check 'end_ptr' below. */
- }
- else
-#endif /* READ_INTERLACING */
-
- /* If here then the switch above wasn't used so just memcpy the whole row
- * from the temporary row buffer (notice that this overwrites the end of the
- * destination row if it is a partial byte.)
- */
- memcpy(dp, sp, PNG_ROWBYTES(pixel_depth, row_width));
-
- /* Restore the overwritten bits from the last byte if necessary. */
- if (end_ptr != NULL)
- *end_ptr = (png_byte)((end_byte & end_mask) | (*end_ptr & ~end_mask));
-}
-
-#ifdef PNG_READ_INTERLACING_SUPPORTED
-void /* PRIVATE */
-png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass,
- png_uint_32 transformations /* Because these may affect the byte layout */)
-{
- /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
- /* Offset to next interlace block */
- static const unsigned int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
-
- png_debug(1, "in png_do_read_interlace");
- if (row != NULL && row_info != NULL)
- {
- png_uint_32 final_width;
-
- final_width = row_info->width * png_pass_inc[pass];
-
- switch (row_info->pixel_depth)
- {
- case 1:
- {
- png_bytep sp = row + (size_t)((row_info->width - 1) >> 3);
- png_bytep dp = row + (size_t)((final_width - 1) >> 3);
- unsigned int sshift, dshift;
- unsigned int s_start, s_end;
- int s_inc;
- int jstop = (int)png_pass_inc[pass];
- png_byte v;
- png_uint_32 i;
- int j;
-
-#ifdef PNG_READ_PACKSWAP_SUPPORTED
- if ((transformations & PNG_PACKSWAP) != 0)
- {
- sshift = ((row_info->width + 7) & 0x07);
- dshift = ((final_width + 7) & 0x07);
- s_start = 7;
- s_end = 0;
- s_inc = -1;
- }
-
- else
-#endif
- {
- sshift = 7 - ((row_info->width + 7) & 0x07);
- dshift = 7 - ((final_width + 7) & 0x07);
- s_start = 0;
- s_end = 7;
- s_inc = 1;
- }
-
- for (i = 0; i < row_info->width; i++)
- {
- v = (png_byte)((*sp >> sshift) & 0x01);
- for (j = 0; j < jstop; j++)
- {
- unsigned int tmp = *dp & (0x7f7f >> (7 - dshift));
- tmp |= (unsigned int)(v << dshift);
- *dp = (png_byte)(tmp & 0xff);
-
- if (dshift == s_end)
- {
- dshift = s_start;
- dp--;
- }
-
- else
- dshift = (unsigned int)((int)dshift + s_inc);
- }
-
- if (sshift == s_end)
- {
- sshift = s_start;
- sp--;
- }
-
- else
- sshift = (unsigned int)((int)sshift + s_inc);
- }
- break;
- }
-
- case 2:
- {
- png_bytep sp = row + (png_uint_32)((row_info->width - 1) >> 2);
- png_bytep dp = row + (png_uint_32)((final_width - 1) >> 2);
- unsigned int sshift, dshift;
- unsigned int s_start, s_end;
- int s_inc;
- int jstop = (int)png_pass_inc[pass];
- png_uint_32 i;
-
-#ifdef PNG_READ_PACKSWAP_SUPPORTED
- if ((transformations & PNG_PACKSWAP) != 0)
- {
- sshift = (((row_info->width + 3) & 0x03) << 1);
- dshift = (((final_width + 3) & 0x03) << 1);
- s_start = 6;
- s_end = 0;
- s_inc = -2;
- }
-
- else
-#endif
- {
- sshift = ((3 - ((row_info->width + 3) & 0x03)) << 1);
- dshift = ((3 - ((final_width + 3) & 0x03)) << 1);
- s_start = 0;
- s_end = 6;
- s_inc = 2;
- }
-
- for (i = 0; i < row_info->width; i++)
- {
- png_byte v;
- int j;
-
- v = (png_byte)((*sp >> sshift) & 0x03);
- for (j = 0; j < jstop; j++)
- {
- unsigned int tmp = *dp & (0x3f3f >> (6 - dshift));
- tmp |= (unsigned int)(v << dshift);
- *dp = (png_byte)(tmp & 0xff);
-
- if (dshift == s_end)
- {
- dshift = s_start;
- dp--;
- }
-
- else
- dshift = (unsigned int)((int)dshift + s_inc);
- }
-
- if (sshift == s_end)
- {
- sshift = s_start;
- sp--;
- }
-
- else
- sshift = (unsigned int)((int)sshift + s_inc);
- }
- break;
- }
-
- case 4:
- {
- png_bytep sp = row + (size_t)((row_info->width - 1) >> 1);
- png_bytep dp = row + (size_t)((final_width - 1) >> 1);
- unsigned int sshift, dshift;
- unsigned int s_start, s_end;
- int s_inc;
- png_uint_32 i;
- int jstop = (int)png_pass_inc[pass];
-
-#ifdef PNG_READ_PACKSWAP_SUPPORTED
- if ((transformations & PNG_PACKSWAP) != 0)
- {
- sshift = (((row_info->width + 1) & 0x01) << 2);
- dshift = (((final_width + 1) & 0x01) << 2);
- s_start = 4;
- s_end = 0;
- s_inc = -4;
- }
-
- else
-#endif
- {
- sshift = ((1 - ((row_info->width + 1) & 0x01)) << 2);
- dshift = ((1 - ((final_width + 1) & 0x01)) << 2);
- s_start = 0;
- s_end = 4;
- s_inc = 4;
- }
-
- for (i = 0; i < row_info->width; i++)
- {
- png_byte v = (png_byte)((*sp >> sshift) & 0x0f);
- int j;
-
- for (j = 0; j < jstop; j++)
- {
- unsigned int tmp = *dp & (0xf0f >> (4 - dshift));
- tmp |= (unsigned int)(v << dshift);
- *dp = (png_byte)(tmp & 0xff);
-
- if (dshift == s_end)
- {
- dshift = s_start;
- dp--;
- }
-
- else
- dshift = (unsigned int)((int)dshift + s_inc);
- }
-
- if (sshift == s_end)
- {
- sshift = s_start;
- sp--;
- }
-
- else
- sshift = (unsigned int)((int)sshift + s_inc);
- }
- break;
- }
-
- default:
- {
- size_t pixel_bytes = (row_info->pixel_depth >> 3);
-
- png_bytep sp = row + (size_t)(row_info->width - 1)
- * pixel_bytes;
-
- png_bytep dp = row + (size_t)(final_width - 1) * pixel_bytes;
-
- int jstop = (int)png_pass_inc[pass];
- png_uint_32 i;
-
- for (i = 0; i < row_info->width; i++)
- {
- png_byte v[8]; /* SAFE; pixel_depth does not exceed 64 */
- int j;
-
- memcpy(v, sp, pixel_bytes);
-
- for (j = 0; j < jstop; j++)
- {
- memcpy(dp, v, pixel_bytes);
- dp -= pixel_bytes;
- }
-
- sp -= pixel_bytes;
- }
- break;
- }
- }
-
- row_info->width = final_width;
- row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, final_width);
- }
-#ifndef PNG_READ_PACKSWAP_SUPPORTED
- PNG_UNUSED(transformations) /* Silence compiler warning */
-#endif
-}
-#endif /* READ_INTERLACING */
-
-static void
-png_read_filter_row_sub(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- size_t i;
- size_t istop = row_info->rowbytes;
- unsigned int bpp = (row_info->pixel_depth + 7) >> 3;
- png_bytep rp = row + bpp;
-
- PNG_UNUSED(prev_row)
-
- for (i = bpp; i < istop; i++)
- {
- *rp = (png_byte)(((int)(*rp) + (int)(*(rp-bpp))) & 0xff);
- rp++;
- }
-}
-
-static void
-png_read_filter_row_up(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- size_t i;
- size_t istop = row_info->rowbytes;
- png_bytep rp = row;
- png_const_bytep pp = prev_row;
-
- for (i = 0; i < istop; i++)
- {
- *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff);
- rp++;
- }
-}
-
-static void
-png_read_filter_row_avg(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- size_t i;
- png_bytep rp = row;
- png_const_bytep pp = prev_row;
- unsigned int bpp = (row_info->pixel_depth + 7) >> 3;
- size_t istop = row_info->rowbytes - bpp;
-
- for (i = 0; i < bpp; i++)
- {
- *rp = (png_byte)(((int)(*rp) +
- ((int)(*pp++) / 2 )) & 0xff);
-
- rp++;
- }
-
- for (i = 0; i < istop; i++)
- {
- *rp = (png_byte)(((int)(*rp) +
- (int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
-
- rp++;
- }
-}
-
-static void
-png_read_filter_row_paeth_1byte_pixel(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- png_bytep rp_end = row + row_info->rowbytes;
- int a, c;
-
- /* First pixel/byte */
- c = *prev_row++;
- a = *row + c;
- *row++ = (png_byte)a;
-
- /* Remainder */
- while (row < rp_end)
- {
- int b, pa, pb, pc, p;
-
- a &= 0xff; /* From previous iteration or start */
- b = *prev_row++;
-
- p = b - c;
- pc = a - c;
-
-#ifdef PNG_USE_ABS
- pa = abs(p);
- pb = abs(pc);
- pc = abs(p + pc);
-#else
- pa = p < 0 ? -p : p;
- pb = pc < 0 ? -pc : pc;
- pc = (p + pc) < 0 ? -(p + pc) : p + pc;
-#endif
-
- /* Find the best predictor, the least of pa, pb, pc favoring the earlier
- * ones in the case of a tie.
- */
- if (pb < pa)
- {
- pa = pb; a = b;
- }
- if (pc < pa) a = c;
-
- /* Calculate the current pixel in a, and move the previous row pixel to c
- * for the next time round the loop
- */
- c = b;
- a += *row;
- *row++ = (png_byte)a;
- }
-}
-
-static void
-png_read_filter_row_paeth_multibyte_pixel(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- unsigned int bpp = (row_info->pixel_depth + 7) >> 3;
- png_bytep rp_end = row + bpp;
-
- /* Process the first pixel in the row completely (this is the same as 'up'
- * because there is only one candidate predictor for the first row).
- */
- while (row < rp_end)
- {
- int a = *row + *prev_row++;
- *row++ = (png_byte)a;
- }
-
- /* Remainder */
- rp_end = rp_end + (row_info->rowbytes - bpp);
-
- while (row < rp_end)
- {
- int a, b, c, pa, pb, pc, p;
-
- c = *(prev_row - bpp);
- a = *(row - bpp);
- b = *prev_row++;
-
- p = b - c;
- pc = a - c;
-
-#ifdef PNG_USE_ABS
- pa = abs(p);
- pb = abs(pc);
- pc = abs(p + pc);
-#else
- pa = p < 0 ? -p : p;
- pb = pc < 0 ? -pc : pc;
- pc = (p + pc) < 0 ? -(p + pc) : p + pc;
-#endif
-
- if (pb < pa)
- {
- pa = pb; a = b;
- }
- if (pc < pa) a = c;
-
- a += *row;
- *row++ = (png_byte)a;
- }
-}
-
-static void
-png_init_filter_functions(png_structrp pp)
- /* This function is called once for every PNG image (except for PNG images
- * that only use PNG_FILTER_VALUE_NONE for all rows) to set the
- * implementations required to reverse the filtering of PNG rows. Reversing
- * the filter is the first transformation performed on the row data. It is
- * performed in place, therefore an implementation can be selected based on
- * the image pixel format. If the implementation depends on image width then
- * take care to ensure that it works correctly if the image is interlaced -
- * interlacing causes the actual row width to vary.
- */
-{
- unsigned int bpp = (pp->pixel_depth + 7) >> 3;
-
- pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub;
- pp->read_filter[PNG_FILTER_VALUE_UP-1] = png_read_filter_row_up;
- pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg;
- if (bpp == 1)
- pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
- png_read_filter_row_paeth_1byte_pixel;
- else
- pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
- png_read_filter_row_paeth_multibyte_pixel;
-
-#ifdef PNG_FILTER_OPTIMIZATIONS
- /* To use this define PNG_FILTER_OPTIMIZATIONS as the name of a function to
- * call to install hardware optimizations for the above functions; simply
- * replace whatever elements of the pp->read_filter[] array with a hardware
- * specific (or, for that matter, generic) optimization.
- *
- * To see an example of this examine what configure.ac does when
- * --enable-arm-neon is specified on the command line.
- */
- PNG_FILTER_OPTIMIZATIONS(pp, bpp);
-#endif
-}
-
-void /* PRIVATE */
-png_read_filter_row(png_structrp pp, png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row, int filter)
-{
- /* OPTIMIZATION: DO NOT MODIFY THIS FUNCTION, instead #define
- * PNG_FILTER_OPTIMIZATIONS to a function that overrides the generic
- * implementations. See png_init_filter_functions above.
- */
- if (filter > PNG_FILTER_VALUE_NONE && filter < PNG_FILTER_VALUE_LAST)
- {
- if (pp->read_filter[0] == NULL)
- png_init_filter_functions(pp);
-
- pp->read_filter[filter-1](row_info, row, prev_row);
- }
-}
-
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
-void /* PRIVATE */
-png_read_IDAT_data(png_structrp png_ptr, png_bytep output,
- png_alloc_size_t avail_out)
-{
- /* Loop reading IDATs and decompressing the result into output[avail_out] */
- png_ptr->zstream.next_out = output;
- png_ptr->zstream.avail_out = 0; /* safety: set below */
-
- if (output == NULL)
- avail_out = 0;
-
- do
- {
- int ret;
- png_byte tmpbuf[PNG_INFLATE_BUF_SIZE];
-
- if (png_ptr->zstream.avail_in == 0)
- {
- uInt avail_in;
- png_bytep buffer;
-
- while (png_ptr->idat_size == 0)
- {
- png_crc_finish(png_ptr, 0);
-
- png_ptr->idat_size = png_read_chunk_header(png_ptr);
- /* This is an error even in the 'check' case because the code just
- * consumed a non-IDAT header.
- */
- if (png_ptr->chunk_name != png_IDAT)
- png_error(png_ptr, "Not enough image data");
- }
-
- avail_in = png_ptr->IDAT_read_size;
-
- if (avail_in > png_ptr->idat_size)
- avail_in = (uInt)png_ptr->idat_size;
-
- /* A PNG with a gradually increasing IDAT size will defeat this attempt
- * to minimize memory usage by causing lots of re-allocs, but
- * realistically doing IDAT_read_size re-allocs is not likely to be a
- * big problem.
- */
- buffer = png_read_buffer(png_ptr, avail_in, 0/*error*/);
-
- png_crc_read(png_ptr, buffer, avail_in);
- png_ptr->idat_size -= avail_in;
-
- png_ptr->zstream.next_in = buffer;
- png_ptr->zstream.avail_in = avail_in;
- }
-
- /* And set up the output side. */
- if (output != NULL) /* standard read */
- {
- uInt out = ZLIB_IO_MAX;
-
- if (out > avail_out)
- out = (uInt)avail_out;
-
- avail_out -= out;
- png_ptr->zstream.avail_out = out;
- }
-
- else /* after last row, checking for end */
- {
- png_ptr->zstream.next_out = tmpbuf;
- png_ptr->zstream.avail_out = (sizeof tmpbuf);
- }
-
- /* Use NO_FLUSH; this gives zlib the maximum opportunity to optimize the
- * process. If the LZ stream is truncated the sequential reader will
- * terminally damage the stream, above, by reading the chunk header of the
- * following chunk (it then exits with png_error).
- *
- * TODO: deal more elegantly with truncated IDAT lists.
- */
- ret = PNG_INFLATE(png_ptr, Z_NO_FLUSH);
-
- /* Take the unconsumed output back. */
- if (output != NULL)
- avail_out += png_ptr->zstream.avail_out;
-
- else /* avail_out counts the extra bytes */
- avail_out += (sizeof tmpbuf) - png_ptr->zstream.avail_out;
-
- png_ptr->zstream.avail_out = 0;
-
- if (ret == Z_STREAM_END)
- {
- /* Do this for safety; we won't read any more into this row. */
- png_ptr->zstream.next_out = NULL;
-
- png_ptr->mode |= PNG_AFTER_IDAT;
- png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED;
-
- if (png_ptr->zstream.avail_in > 0 || png_ptr->idat_size > 0)
- png_chunk_benign_error(png_ptr, "Extra compressed data");
- break;
- }
-
- if (ret != Z_OK)
- {
- png_zstream_error(png_ptr, ret);
-
- if (output != NULL)
- png_chunk_error(png_ptr, png_ptr->zstream.msg);
-
- else /* checking */
- {
- png_chunk_benign_error(png_ptr, png_ptr->zstream.msg);
- return;
- }
- }
- } while (avail_out > 0);
-
- if (avail_out > 0)
- {
- /* The stream ended before the image; this is the same as too few IDATs so
- * should be handled the same way.
- */
- if (output != NULL)
- png_error(png_ptr, "Not enough image data");
-
- else /* the deflate stream contained extra data */
- png_chunk_benign_error(png_ptr, "Too much image data");
- }
-}
-
-void /* PRIVATE */
-png_read_finish_IDAT(png_structrp png_ptr)
-{
- /* We don't need any more data and the stream should have ended, however the
- * LZ end code may actually not have been processed. In this case we must
- * read it otherwise stray unread IDAT data or, more likely, an IDAT chunk
- * may still remain to be consumed.
- */
- if ((png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED) == 0)
- {
- /* The NULL causes png_read_IDAT_data to swallow any remaining bytes in
- * the compressed stream, but the stream may be damaged too, so even after
- * this call we may need to terminate the zstream ownership.
- */
- png_read_IDAT_data(png_ptr, NULL, 0);
- png_ptr->zstream.next_out = NULL; /* safety */
-
- /* Now clear everything out for safety; the following may not have been
- * done.
- */
- if ((png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED) == 0)
- {
- png_ptr->mode |= PNG_AFTER_IDAT;
- png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED;
- }
- }
-
- /* If the zstream has not been released do it now *and* terminate the reading
- * of the final IDAT chunk.
- */
- if (png_ptr->zowner == png_IDAT)
- {
- /* Always do this; the pointers otherwise point into the read buffer. */
- png_ptr->zstream.next_in = NULL;
- png_ptr->zstream.avail_in = 0;
-
- /* Now we no longer own the zstream. */
- png_ptr->zowner = 0;
-
- /* The slightly weird semantics of the sequential IDAT reading is that we
- * are always in or at the end of an IDAT chunk, so we always need to do a
- * crc_finish here. If idat_size is non-zero we also need to read the
- * spurious bytes at the end of the chunk now.
- */
- (void)png_crc_finish(png_ptr, png_ptr->idat_size);
- }
-}
-
-void /* PRIVATE */
-png_read_finish_row(png_structrp png_ptr)
-{
- /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
-
- /* Start of interlace block */
- static const png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};
-
- /* Offset to next interlace block */
- static const png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
-
- /* Start of interlace block in the y direction */
- static const png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1};
-
- /* Offset to next interlace block in the y direction */
- static const png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2};
-
- png_debug(1, "in png_read_finish_row");
- png_ptr->row_number++;
- if (png_ptr->row_number < png_ptr->num_rows)
- return;
-
- if (png_ptr->interlaced != 0)
- {
- png_ptr->row_number = 0;
-
- /* TO DO: don't do this if prev_row isn't needed (requires
- * read-ahead of the next row's filter byte.
- */
- memset(png_ptr->prev_row, 0, png_ptr->rowbytes + 1);
-
- do
- {
- png_ptr->pass++;
-
- if (png_ptr->pass >= 7)
- break;
-
- png_ptr->iwidth = (png_ptr->width +
- png_pass_inc[png_ptr->pass] - 1 -
- png_pass_start[png_ptr->pass]) /
- png_pass_inc[png_ptr->pass];
-
- if ((png_ptr->transformations & PNG_INTERLACE) == 0)
- {
- png_ptr->num_rows = (png_ptr->height +
- png_pass_yinc[png_ptr->pass] - 1 -
- png_pass_ystart[png_ptr->pass]) /
- png_pass_yinc[png_ptr->pass];
- }
-
- else /* if (png_ptr->transformations & PNG_INTERLACE) */
- break; /* libpng deinterlacing sees every row */
-
- } while (png_ptr->num_rows == 0 || png_ptr->iwidth == 0);
-
- if (png_ptr->pass < 7)
- return;
- }
-
- /* Here after at the end of the last row of the last pass. */
- png_read_finish_IDAT(png_ptr);
-}
-#endif /* SEQUENTIAL_READ */
-
-void /* PRIVATE */
-png_read_start_row(png_structrp png_ptr)
-{
- /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
-
- /* Start of interlace block */
- static const png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};
-
- /* Offset to next interlace block */
- static const png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
-
- /* Start of interlace block in the y direction */
- static const png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1};
-
- /* Offset to next interlace block in the y direction */
- static const png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2};
-
- unsigned int max_pixel_depth;
- size_t row_bytes;
-
- png_debug(1, "in png_read_start_row");
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
- png_init_read_transformations(png_ptr);
-#endif
- if (png_ptr->interlaced != 0)
- {
- if ((png_ptr->transformations & PNG_INTERLACE) == 0)
- png_ptr->num_rows = (png_ptr->height + png_pass_yinc[0] - 1 -
- png_pass_ystart[0]) / png_pass_yinc[0];
-
- else
- png_ptr->num_rows = png_ptr->height;
-
- png_ptr->iwidth = (png_ptr->width +
- png_pass_inc[png_ptr->pass] - 1 -
- png_pass_start[png_ptr->pass]) /
- png_pass_inc[png_ptr->pass];
- }
-
- else
- {
- png_ptr->num_rows = png_ptr->height;
- png_ptr->iwidth = png_ptr->width;
- }
-
- max_pixel_depth = (unsigned int)png_ptr->pixel_depth;
-
- /* WARNING: * png_read_transform_info (pngrtran.c) performs a simpler set of
- * calculations to calculate the final pixel depth, then
- * png_do_read_transforms actually does the transforms. This means that the
- * code which effectively calculates this value is actually repeated in three
- * separate places. They must all match. Innocent changes to the order of
- * transformations can and will break libpng in a way that causes memory
- * overwrites.
- *
- * TODO: fix this.
- */
-#ifdef PNG_READ_PACK_SUPPORTED
- if ((png_ptr->transformations & PNG_PACK) != 0 && png_ptr->bit_depth < 8)
- max_pixel_depth = 8;
-#endif
-
-#ifdef PNG_READ_EXPAND_SUPPORTED
- if ((png_ptr->transformations & PNG_EXPAND) != 0)
- {
- if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- {
- if (png_ptr->num_trans != 0)
- max_pixel_depth = 32;
-
- else
- max_pixel_depth = 24;
- }
-
- else if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY)
- {
- if (max_pixel_depth < 8)
- max_pixel_depth = 8;
-
- if (png_ptr->num_trans != 0)
- max_pixel_depth *= 2;
- }
-
- else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB)
- {
- if (png_ptr->num_trans != 0)
- {
- max_pixel_depth *= 4;
- max_pixel_depth /= 3;
- }
- }
- }
-#endif
-
-#ifdef PNG_READ_EXPAND_16_SUPPORTED
- if ((png_ptr->transformations & PNG_EXPAND_16) != 0)
- {
-# ifdef PNG_READ_EXPAND_SUPPORTED
- /* In fact it is an error if it isn't supported, but checking is
- * the safe way.
- */
- if ((png_ptr->transformations & PNG_EXPAND) != 0)
- {
- if (png_ptr->bit_depth < 16)
- max_pixel_depth *= 2;
- }
- else
-# endif
- png_ptr->transformations &= ~PNG_EXPAND_16;
- }
-#endif
-
-#ifdef PNG_READ_FILLER_SUPPORTED
- if ((png_ptr->transformations & (PNG_FILLER)) != 0)
- {
- if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY)
- {
- if (max_pixel_depth <= 8)
- max_pixel_depth = 16;
-
- else
- max_pixel_depth = 32;
- }
-
- else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB ||
- png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- {
- if (max_pixel_depth <= 32)
- max_pixel_depth = 32;
-
- else
- max_pixel_depth = 64;
- }
- }
-#endif
-
-#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
- if ((png_ptr->transformations & PNG_GRAY_TO_RGB) != 0)
- {
- if (
-#ifdef PNG_READ_EXPAND_SUPPORTED
- (png_ptr->num_trans != 0 &&
- (png_ptr->transformations & PNG_EXPAND) != 0) ||
-#endif
-#ifdef PNG_READ_FILLER_SUPPORTED
- (png_ptr->transformations & (PNG_FILLER)) != 0 ||
-#endif
- png_ptr->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- {
- if (max_pixel_depth <= 16)
- max_pixel_depth = 32;
-
- else
- max_pixel_depth = 64;
- }
-
- else
- {
- if (max_pixel_depth <= 8)
- {
- if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- max_pixel_depth = 32;
-
- else
- max_pixel_depth = 24;
- }
-
- else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- max_pixel_depth = 64;
-
- else
- max_pixel_depth = 48;
- }
- }
-#endif
-
-#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) && \
-defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
- if ((png_ptr->transformations & PNG_USER_TRANSFORM) != 0)
- {
- unsigned int user_pixel_depth = png_ptr->user_transform_depth *
- png_ptr->user_transform_channels;
-
- if (user_pixel_depth > max_pixel_depth)
- max_pixel_depth = user_pixel_depth;
- }
-#endif
-
- /* This value is stored in png_struct and double checked in the row read
- * code.
- */
- png_ptr->maximum_pixel_depth = (png_byte)max_pixel_depth;
- png_ptr->transformed_pixel_depth = 0; /* calculated on demand */
-
- /* Align the width on the next larger 8 pixels. Mainly used
- * for interlacing
- */
- row_bytes = ((png_ptr->width + 7) & ~((png_uint_32)7));
- /* Calculate the maximum bytes needed, adding a byte and a pixel
- * for safety's sake
- */
- row_bytes = PNG_ROWBYTES(max_pixel_depth, row_bytes) +
- 1 + ((max_pixel_depth + 7) >> 3U);
-
-#ifdef PNG_MAX_MALLOC_64K
- if (row_bytes > (png_uint_32)65536L)
- png_error(png_ptr, "This image requires a row greater than 64KB");
-#endif
-
- if (row_bytes + 48 > png_ptr->old_big_row_buf_size)
- {
- png_free(png_ptr, png_ptr->big_row_buf);
- png_free(png_ptr, png_ptr->big_prev_row);
-
- if (png_ptr->interlaced != 0)
- png_ptr->big_row_buf = (png_bytep)png_calloc(png_ptr,
- row_bytes + 48);
-
- else
- png_ptr->big_row_buf = (png_bytep)png_malloc(png_ptr, row_bytes + 48);
-
- png_ptr->big_prev_row = (png_bytep)png_malloc(png_ptr, row_bytes + 48);
-
-#ifdef PNG_ALIGNED_MEMORY_SUPPORTED
- /* Use 16-byte aligned memory for row_buf with at least 16 bytes
- * of padding before and after row_buf; treat prev_row similarly.
- * NOTE: the alignment is to the start of the pixels, one beyond the start
- * of the buffer, because of the filter byte. Prior to libpng 1.5.6 this
- * was incorrect; the filter byte was aligned, which had the exact
- * opposite effect of that intended.
- */
- {
- png_bytep temp = png_ptr->big_row_buf + 32;
- int extra = (int)((temp - (png_bytep)0) & 0x0f);
- png_ptr->row_buf = temp - extra - 1/*filter byte*/;
-
- temp = png_ptr->big_prev_row + 32;
- extra = (int)((temp - (png_bytep)0) & 0x0f);
- png_ptr->prev_row = temp - extra - 1/*filter byte*/;
- }
-
-#else
- /* Use 31 bytes of padding before and 17 bytes after row_buf. */
- png_ptr->row_buf = png_ptr->big_row_buf + 31;
- png_ptr->prev_row = png_ptr->big_prev_row + 31;
-#endif
- png_ptr->old_big_row_buf_size = row_bytes + 48;
- }
-
-#ifdef PNG_MAX_MALLOC_64K
- if (png_ptr->rowbytes > 65535)
- png_error(png_ptr, "This image requires a row greater than 64KB");
-
-#endif
- if (png_ptr->rowbytes > (PNG_SIZE_MAX - 1))
- png_error(png_ptr, "Row has too many bytes to allocate in memory");
-
- memset(png_ptr->prev_row, 0, png_ptr->rowbytes + 1);
-
- png_debug1(3, "width = %u,", png_ptr->width);
- png_debug1(3, "height = %u,", png_ptr->height);
- png_debug1(3, "iwidth = %u,", png_ptr->iwidth);
- png_debug1(3, "num_rows = %u,", png_ptr->num_rows);
- png_debug1(3, "rowbytes = %lu,", (unsigned long)png_ptr->rowbytes);
- png_debug1(3, "irowbytes = %lu",
- (unsigned long)PNG_ROWBYTES(png_ptr->pixel_depth, png_ptr->iwidth) + 1);
-
- /* The sequential reader needs a buffer for IDAT, but the progressive reader
- * does not, so free the read buffer now regardless; the sequential reader
- * reallocates it on demand.
- */
- if (png_ptr->read_buffer != NULL)
- {
- png_bytep buffer = png_ptr->read_buffer;
-
- png_ptr->read_buffer_size = 0;
- png_ptr->read_buffer = NULL;
- png_free(png_ptr, buffer);
- }
-
- /* Finally claim the zstream for the inflate of the IDAT data, use the bits
- * value from the stream (note that this will result in a fatal error if the
- * IDAT stream has a bogus deflate header window_bits value, but this should
- * not be happening any longer!)
- */
- if (png_inflate_claim(png_ptr, png_IDAT) != Z_OK)
- png_error(png_ptr, png_ptr->zstream.msg);
-
- png_ptr->flags |= PNG_FLAG_ROW_INIT;
-}
-#endif /* READ */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngrutil.lo b/3rdparty/libpng/libpng-1.6.37/pngrutil.lo
deleted file mode 100644
index b576d51..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngrutil.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# pngrutil.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/pngrutil.o'
-
-# Name of the non-PIC object
-non_pic_object='pngrutil.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/pngrutil.o b/3rdparty/libpng/libpng-1.6.37/pngrutil.o
deleted file mode 100644
index a2e7c8d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngrutil.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngset.c b/3rdparty/libpng/libpng-1.6.37/pngset.c
deleted file mode 100644
index ec75dbe..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngset.c
+++ /dev/null
@@ -1,1802 +0,0 @@
-
-/* pngset.c - storage of image information into info struct
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 1998-2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * The functions here are used during reads to store data from the file
- * into the info struct, and during writes to store application data
- * into the info struct for writing into the file. This abstracts the
- * info struct and allows us to change the structure in the future.
- */
-
-#include "pngpriv.h"
-
-#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
-
-#ifdef PNG_bKGD_SUPPORTED
-void PNGAPI
-png_set_bKGD(png_const_structrp png_ptr, png_inforp info_ptr,
- png_const_color_16p background)
-{
- png_debug1(1, "in %s storage function", "bKGD");
-
- if (png_ptr == NULL || info_ptr == NULL || background == NULL)
- return;
-
- info_ptr->background = *background;
- info_ptr->valid |= PNG_INFO_bKGD;
-}
-#endif
-
-#ifdef PNG_cHRM_SUPPORTED
-void PNGFAPI
-png_set_cHRM_fixed(png_const_structrp png_ptr, png_inforp info_ptr,
- png_fixed_point white_x, png_fixed_point white_y, png_fixed_point red_x,
- png_fixed_point red_y, png_fixed_point green_x, png_fixed_point green_y,
- png_fixed_point blue_x, png_fixed_point blue_y)
-{
- png_xy xy;
-
- png_debug1(1, "in %s storage function", "cHRM fixed");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- xy.redx = red_x;
- xy.redy = red_y;
- xy.greenx = green_x;
- xy.greeny = green_y;
- xy.bluex = blue_x;
- xy.bluey = blue_y;
- xy.whitex = white_x;
- xy.whitey = white_y;
-
- if (png_colorspace_set_chromaticities(png_ptr, &info_ptr->colorspace, &xy,
- 2/* override with app values*/) != 0)
- info_ptr->colorspace.flags |= PNG_COLORSPACE_FROM_cHRM;
-
- png_colorspace_sync_info(png_ptr, info_ptr);
-}
-
-void PNGFAPI
-png_set_cHRM_XYZ_fixed(png_const_structrp png_ptr, png_inforp info_ptr,
- png_fixed_point int_red_X, png_fixed_point int_red_Y,
- png_fixed_point int_red_Z, png_fixed_point int_green_X,
- png_fixed_point int_green_Y, png_fixed_point int_green_Z,
- png_fixed_point int_blue_X, png_fixed_point int_blue_Y,
- png_fixed_point int_blue_Z)
-{
- png_XYZ XYZ;
-
- png_debug1(1, "in %s storage function", "cHRM XYZ fixed");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- XYZ.red_X = int_red_X;
- XYZ.red_Y = int_red_Y;
- XYZ.red_Z = int_red_Z;
- XYZ.green_X = int_green_X;
- XYZ.green_Y = int_green_Y;
- XYZ.green_Z = int_green_Z;
- XYZ.blue_X = int_blue_X;
- XYZ.blue_Y = int_blue_Y;
- XYZ.blue_Z = int_blue_Z;
-
- if (png_colorspace_set_endpoints(png_ptr, &info_ptr->colorspace,
- &XYZ, 2) != 0)
- info_ptr->colorspace.flags |= PNG_COLORSPACE_FROM_cHRM;
-
- png_colorspace_sync_info(png_ptr, info_ptr);
-}
-
-# ifdef PNG_FLOATING_POINT_SUPPORTED
-void PNGAPI
-png_set_cHRM(png_const_structrp png_ptr, png_inforp info_ptr,
- double white_x, double white_y, double red_x, double red_y,
- double green_x, double green_y, double blue_x, double blue_y)
-{
- png_set_cHRM_fixed(png_ptr, info_ptr,
- png_fixed(png_ptr, white_x, "cHRM White X"),
- png_fixed(png_ptr, white_y, "cHRM White Y"),
- png_fixed(png_ptr, red_x, "cHRM Red X"),
- png_fixed(png_ptr, red_y, "cHRM Red Y"),
- png_fixed(png_ptr, green_x, "cHRM Green X"),
- png_fixed(png_ptr, green_y, "cHRM Green Y"),
- png_fixed(png_ptr, blue_x, "cHRM Blue X"),
- png_fixed(png_ptr, blue_y, "cHRM Blue Y"));
-}
-
-void PNGAPI
-png_set_cHRM_XYZ(png_const_structrp png_ptr, png_inforp info_ptr, double red_X,
- double red_Y, double red_Z, double green_X, double green_Y, double green_Z,
- double blue_X, double blue_Y, double blue_Z)
-{
- png_set_cHRM_XYZ_fixed(png_ptr, info_ptr,
- png_fixed(png_ptr, red_X, "cHRM Red X"),
- png_fixed(png_ptr, red_Y, "cHRM Red Y"),
- png_fixed(png_ptr, red_Z, "cHRM Red Z"),
- png_fixed(png_ptr, green_X, "cHRM Green X"),
- png_fixed(png_ptr, green_Y, "cHRM Green Y"),
- png_fixed(png_ptr, green_Z, "cHRM Green Z"),
- png_fixed(png_ptr, blue_X, "cHRM Blue X"),
- png_fixed(png_ptr, blue_Y, "cHRM Blue Y"),
- png_fixed(png_ptr, blue_Z, "cHRM Blue Z"));
-}
-# endif /* FLOATING_POINT */
-
-#endif /* cHRM */
-
-#ifdef PNG_eXIf_SUPPORTED
-void PNGAPI
-png_set_eXIf(png_const_structrp png_ptr, png_inforp info_ptr,
- png_bytep eXIf_buf)
-{
- png_warning(png_ptr, "png_set_eXIf does not work; use png_set_eXIf_1");
- PNG_UNUSED(info_ptr)
- PNG_UNUSED(eXIf_buf)
-}
-
-void PNGAPI
-png_set_eXIf_1(png_const_structrp png_ptr, png_inforp info_ptr,
- png_uint_32 num_exif, png_bytep eXIf_buf)
-{
- int i;
-
- png_debug1(1, "in %s storage function", "eXIf");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- if (info_ptr->exif)
- {
- png_free(png_ptr, info_ptr->exif);
- info_ptr->exif = NULL;
- }
-
- info_ptr->num_exif = num_exif;
-
- info_ptr->exif = png_voidcast(png_bytep, png_malloc_warn(png_ptr,
- info_ptr->num_exif));
-
- if (info_ptr->exif == NULL)
- {
- png_warning(png_ptr, "Insufficient memory for eXIf chunk data");
- return;
- }
-
- info_ptr->free_me |= PNG_FREE_EXIF;
-
- for (i = 0; i < (int) info_ptr->num_exif; i++)
- info_ptr->exif[i] = eXIf_buf[i];
-
- info_ptr->valid |= PNG_INFO_eXIf;
-}
-#endif /* eXIf */
-
-#ifdef PNG_gAMA_SUPPORTED
-void PNGFAPI
-png_set_gAMA_fixed(png_const_structrp png_ptr, png_inforp info_ptr,
- png_fixed_point file_gamma)
-{
- png_debug1(1, "in %s storage function", "gAMA");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- png_colorspace_set_gamma(png_ptr, &info_ptr->colorspace, file_gamma);
- png_colorspace_sync_info(png_ptr, info_ptr);
-}
-
-# ifdef PNG_FLOATING_POINT_SUPPORTED
-void PNGAPI
-png_set_gAMA(png_const_structrp png_ptr, png_inforp info_ptr, double file_gamma)
-{
- png_set_gAMA_fixed(png_ptr, info_ptr, png_fixed(png_ptr, file_gamma,
- "png_set_gAMA"));
-}
-# endif
-#endif
-
-#ifdef PNG_hIST_SUPPORTED
-void PNGAPI
-png_set_hIST(png_const_structrp png_ptr, png_inforp info_ptr,
- png_const_uint_16p hist)
-{
- int i;
-
- png_debug1(1, "in %s storage function", "hIST");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- if (info_ptr->num_palette == 0 || info_ptr->num_palette
- > PNG_MAX_PALETTE_LENGTH)
- {
- png_warning(png_ptr,
- "Invalid palette size, hIST allocation skipped");
-
- return;
- }
-
- png_free_data(png_ptr, info_ptr, PNG_FREE_HIST, 0);
-
- /* Changed from info->num_palette to PNG_MAX_PALETTE_LENGTH in
- * version 1.2.1
- */
- info_ptr->hist = png_voidcast(png_uint_16p, png_malloc_warn(png_ptr,
- PNG_MAX_PALETTE_LENGTH * (sizeof (png_uint_16))));
-
- if (info_ptr->hist == NULL)
- {
- png_warning(png_ptr, "Insufficient memory for hIST chunk data");
-
- return;
- }
-
- info_ptr->free_me |= PNG_FREE_HIST;
-
- for (i = 0; i < info_ptr->num_palette; i++)
- info_ptr->hist[i] = hist[i];
-
- info_ptr->valid |= PNG_INFO_hIST;
-}
-#endif
-
-void PNGAPI
-png_set_IHDR(png_const_structrp png_ptr, png_inforp info_ptr,
- png_uint_32 width, png_uint_32 height, int bit_depth,
- int color_type, int interlace_type, int compression_type,
- int filter_type)
-{
- png_debug1(1, "in %s storage function", "IHDR");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- info_ptr->width = width;
- info_ptr->height = height;
- info_ptr->bit_depth = (png_byte)bit_depth;
- info_ptr->color_type = (png_byte)color_type;
- info_ptr->compression_type = (png_byte)compression_type;
- info_ptr->filter_type = (png_byte)filter_type;
- info_ptr->interlace_type = (png_byte)interlace_type;
-
- png_check_IHDR (png_ptr, info_ptr->width, info_ptr->height,
- info_ptr->bit_depth, info_ptr->color_type, info_ptr->interlace_type,
- info_ptr->compression_type, info_ptr->filter_type);
-
- if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- info_ptr->channels = 1;
-
- else if ((info_ptr->color_type & PNG_COLOR_MASK_COLOR) != 0)
- info_ptr->channels = 3;
-
- else
- info_ptr->channels = 1;
-
- if ((info_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0)
- info_ptr->channels++;
-
- info_ptr->pixel_depth = (png_byte)(info_ptr->channels * info_ptr->bit_depth);
-
- info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, width);
-}
-
-#ifdef PNG_oFFs_SUPPORTED
-void PNGAPI
-png_set_oFFs(png_const_structrp png_ptr, png_inforp info_ptr,
- png_int_32 offset_x, png_int_32 offset_y, int unit_type)
-{
- png_debug1(1, "in %s storage function", "oFFs");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- info_ptr->x_offset = offset_x;
- info_ptr->y_offset = offset_y;
- info_ptr->offset_unit_type = (png_byte)unit_type;
- info_ptr->valid |= PNG_INFO_oFFs;
-}
-#endif
-
-#ifdef PNG_pCAL_SUPPORTED
-void PNGAPI
-png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
- png_const_charp purpose, png_int_32 X0, png_int_32 X1, int type,
- int nparams, png_const_charp units, png_charpp params)
-{
- size_t length;
- int i;
-
- png_debug1(1, "in %s storage function", "pCAL");
-
- if (png_ptr == NULL || info_ptr == NULL || purpose == NULL || units == NULL
- || (nparams > 0 && params == NULL))
- return;
-
- length = strlen(purpose) + 1;
- png_debug1(3, "allocating purpose for info (%lu bytes)",
- (unsigned long)length);
-
- /* TODO: validate format of calibration name and unit name */
-
- /* Check that the type matches the specification. */
- if (type < 0 || type > 3)
- {
- png_chunk_report(png_ptr, "Invalid pCAL equation type",
- PNG_CHUNK_WRITE_ERROR);
- return;
- }
-
- if (nparams < 0 || nparams > 255)
- {
- png_chunk_report(png_ptr, "Invalid pCAL parameter count",
- PNG_CHUNK_WRITE_ERROR);
- return;
- }
-
- /* Validate params[nparams] */
- for (i=0; i<nparams; ++i)
- {
- if (params[i] == NULL ||
- !png_check_fp_string(params[i], strlen(params[i])))
- {
- png_chunk_report(png_ptr, "Invalid format for pCAL parameter",
- PNG_CHUNK_WRITE_ERROR);
- return;
- }
- }
-
- info_ptr->pcal_purpose = png_voidcast(png_charp,
- png_malloc_warn(png_ptr, length));
-
- if (info_ptr->pcal_purpose == NULL)
- {
- png_chunk_report(png_ptr, "Insufficient memory for pCAL purpose",
- PNG_CHUNK_WRITE_ERROR);
- return;
- }
-
- memcpy(info_ptr->pcal_purpose, purpose, length);
-
- png_debug(3, "storing X0, X1, type, and nparams in info");
- info_ptr->pcal_X0 = X0;
- info_ptr->pcal_X1 = X1;
- info_ptr->pcal_type = (png_byte)type;
- info_ptr->pcal_nparams = (png_byte)nparams;
-
- length = strlen(units) + 1;
- png_debug1(3, "allocating units for info (%lu bytes)",
- (unsigned long)length);
-
- info_ptr->pcal_units = png_voidcast(png_charp,
- png_malloc_warn(png_ptr, length));
-
- if (info_ptr->pcal_units == NULL)
- {
- png_warning(png_ptr, "Insufficient memory for pCAL units");
-
- return;
- }
-
- memcpy(info_ptr->pcal_units, units, length);
-
- info_ptr->pcal_params = png_voidcast(png_charpp, png_malloc_warn(png_ptr,
- (size_t)(((unsigned int)nparams + 1) * (sizeof (png_charp)))));
-
- if (info_ptr->pcal_params == NULL)
- {
- png_warning(png_ptr, "Insufficient memory for pCAL params");
-
- return;
- }
-
- memset(info_ptr->pcal_params, 0, ((unsigned int)nparams + 1) *
- (sizeof (png_charp)));
-
- for (i = 0; i < nparams; i++)
- {
- length = strlen(params[i]) + 1;
- png_debug2(3, "allocating parameter %d for info (%lu bytes)", i,
- (unsigned long)length);
-
- info_ptr->pcal_params[i] = (png_charp)png_malloc_warn(png_ptr, length);
-
- if (info_ptr->pcal_params[i] == NULL)
- {
- png_warning(png_ptr, "Insufficient memory for pCAL parameter");
-
- return;
- }
-
- memcpy(info_ptr->pcal_params[i], params[i], length);
- }
-
- info_ptr->valid |= PNG_INFO_pCAL;
- info_ptr->free_me |= PNG_FREE_PCAL;
-}
-#endif
-
-#ifdef PNG_sCAL_SUPPORTED
-void PNGAPI
-png_set_sCAL_s(png_const_structrp png_ptr, png_inforp info_ptr,
- int unit, png_const_charp swidth, png_const_charp sheight)
-{
- size_t lengthw = 0, lengthh = 0;
-
- png_debug1(1, "in %s storage function", "sCAL");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- /* Double check the unit (should never get here with an invalid
- * unit unless this is an API call.)
- */
- if (unit != 1 && unit != 2)
- png_error(png_ptr, "Invalid sCAL unit");
-
- if (swidth == NULL || (lengthw = strlen(swidth)) == 0 ||
- swidth[0] == 45 /* '-' */ || !png_check_fp_string(swidth, lengthw))
- png_error(png_ptr, "Invalid sCAL width");
-
- if (sheight == NULL || (lengthh = strlen(sheight)) == 0 ||
- sheight[0] == 45 /* '-' */ || !png_check_fp_string(sheight, lengthh))
- png_error(png_ptr, "Invalid sCAL height");
-
- info_ptr->scal_unit = (png_byte)unit;
-
- ++lengthw;
-
- png_debug1(3, "allocating unit for info (%u bytes)", (unsigned int)lengthw);
-
- info_ptr->scal_s_width = png_voidcast(png_charp,
- png_malloc_warn(png_ptr, lengthw));
-
- if (info_ptr->scal_s_width == NULL)
- {
- png_warning(png_ptr, "Memory allocation failed while processing sCAL");
-
- return;
- }
-
- memcpy(info_ptr->scal_s_width, swidth, lengthw);
-
- ++lengthh;
-
- png_debug1(3, "allocating unit for info (%u bytes)", (unsigned int)lengthh);
-
- info_ptr->scal_s_height = png_voidcast(png_charp,
- png_malloc_warn(png_ptr, lengthh));
-
- if (info_ptr->scal_s_height == NULL)
- {
- png_free (png_ptr, info_ptr->scal_s_width);
- info_ptr->scal_s_width = NULL;
-
- png_warning(png_ptr, "Memory allocation failed while processing sCAL");
-
- return;
- }
-
- memcpy(info_ptr->scal_s_height, sheight, lengthh);
-
- info_ptr->valid |= PNG_INFO_sCAL;
- info_ptr->free_me |= PNG_FREE_SCAL;
-}
-
-# ifdef PNG_FLOATING_POINT_SUPPORTED
-void PNGAPI
-png_set_sCAL(png_const_structrp png_ptr, png_inforp info_ptr, int unit,
- double width, double height)
-{
- png_debug1(1, "in %s storage function", "sCAL");
-
- /* Check the arguments. */
- if (width <= 0)
- png_warning(png_ptr, "Invalid sCAL width ignored");
-
- else if (height <= 0)
- png_warning(png_ptr, "Invalid sCAL height ignored");
-
- else
- {
- /* Convert 'width' and 'height' to ASCII. */
- char swidth[PNG_sCAL_MAX_DIGITS+1];
- char sheight[PNG_sCAL_MAX_DIGITS+1];
-
- png_ascii_from_fp(png_ptr, swidth, (sizeof swidth), width,
- PNG_sCAL_PRECISION);
- png_ascii_from_fp(png_ptr, sheight, (sizeof sheight), height,
- PNG_sCAL_PRECISION);
-
- png_set_sCAL_s(png_ptr, info_ptr, unit, swidth, sheight);
- }
-}
-# endif
-
-# ifdef PNG_FIXED_POINT_SUPPORTED
-void PNGAPI
-png_set_sCAL_fixed(png_const_structrp png_ptr, png_inforp info_ptr, int unit,
- png_fixed_point width, png_fixed_point height)
-{
- png_debug1(1, "in %s storage function", "sCAL");
-
- /* Check the arguments. */
- if (width <= 0)
- png_warning(png_ptr, "Invalid sCAL width ignored");
-
- else if (height <= 0)
- png_warning(png_ptr, "Invalid sCAL height ignored");
-
- else
- {
- /* Convert 'width' and 'height' to ASCII. */
- char swidth[PNG_sCAL_MAX_DIGITS+1];
- char sheight[PNG_sCAL_MAX_DIGITS+1];
-
- png_ascii_from_fixed(png_ptr, swidth, (sizeof swidth), width);
- png_ascii_from_fixed(png_ptr, sheight, (sizeof sheight), height);
-
- png_set_sCAL_s(png_ptr, info_ptr, unit, swidth, sheight);
- }
-}
-# endif
-#endif
-
-#ifdef PNG_pHYs_SUPPORTED
-void PNGAPI
-png_set_pHYs(png_const_structrp png_ptr, png_inforp info_ptr,
- png_uint_32 res_x, png_uint_32 res_y, int unit_type)
-{
- png_debug1(1, "in %s storage function", "pHYs");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- info_ptr->x_pixels_per_unit = res_x;
- info_ptr->y_pixels_per_unit = res_y;
- info_ptr->phys_unit_type = (png_byte)unit_type;
- info_ptr->valid |= PNG_INFO_pHYs;
-}
-#endif
-
-void PNGAPI
-png_set_PLTE(png_structrp png_ptr, png_inforp info_ptr,
- png_const_colorp palette, int num_palette)
-{
-
- png_uint_32 max_palette_length;
-
- png_debug1(1, "in %s storage function", "PLTE");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- max_palette_length = (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) ?
- (1 << info_ptr->bit_depth) : PNG_MAX_PALETTE_LENGTH;
-
- if (num_palette < 0 || num_palette > (int) max_palette_length)
- {
- if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- png_error(png_ptr, "Invalid palette length");
-
- else
- {
- png_warning(png_ptr, "Invalid palette length");
-
- return;
- }
- }
-
- if ((num_palette > 0 && palette == NULL) ||
- (num_palette == 0
-# ifdef PNG_MNG_FEATURES_SUPPORTED
- && (png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) == 0
-# endif
- ))
- {
- png_error(png_ptr, "Invalid palette");
- }
-
- /* It may not actually be necessary to set png_ptr->palette here;
- * we do it for backward compatibility with the way the png_handle_tRNS
- * function used to do the allocation.
- *
- * 1.6.0: the above statement appears to be incorrect; something has to set
- * the palette inside png_struct on read.
- */
- png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0);
-
- /* Changed in libpng-1.2.1 to allocate PNG_MAX_PALETTE_LENGTH instead
- * of num_palette entries, in case of an invalid PNG file or incorrect
- * call to png_set_PLTE() with too-large sample values.
- */
- png_ptr->palette = png_voidcast(png_colorp, png_calloc(png_ptr,
- PNG_MAX_PALETTE_LENGTH * (sizeof (png_color))));
-
- if (num_palette > 0)
- memcpy(png_ptr->palette, palette, (unsigned int)num_palette *
- (sizeof (png_color)));
- info_ptr->palette = png_ptr->palette;
- info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette;
-
- info_ptr->free_me |= PNG_FREE_PLTE;
-
- info_ptr->valid |= PNG_INFO_PLTE;
-}
-
-#ifdef PNG_sBIT_SUPPORTED
-void PNGAPI
-png_set_sBIT(png_const_structrp png_ptr, png_inforp info_ptr,
- png_const_color_8p sig_bit)
-{
- png_debug1(1, "in %s storage function", "sBIT");
-
- if (png_ptr == NULL || info_ptr == NULL || sig_bit == NULL)
- return;
-
- info_ptr->sig_bit = *sig_bit;
- info_ptr->valid |= PNG_INFO_sBIT;
-}
-#endif
-
-#ifdef PNG_sRGB_SUPPORTED
-void PNGAPI
-png_set_sRGB(png_const_structrp png_ptr, png_inforp info_ptr, int srgb_intent)
-{
- png_debug1(1, "in %s storage function", "sRGB");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- (void)png_colorspace_set_sRGB(png_ptr, &info_ptr->colorspace, srgb_intent);
- png_colorspace_sync_info(png_ptr, info_ptr);
-}
-
-void PNGAPI
-png_set_sRGB_gAMA_and_cHRM(png_const_structrp png_ptr, png_inforp info_ptr,
- int srgb_intent)
-{
- png_debug1(1, "in %s storage function", "sRGB_gAMA_and_cHRM");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- if (png_colorspace_set_sRGB(png_ptr, &info_ptr->colorspace,
- srgb_intent) != 0)
- {
- /* This causes the gAMA and cHRM to be written too */
- info_ptr->colorspace.flags |=
- PNG_COLORSPACE_FROM_gAMA|PNG_COLORSPACE_FROM_cHRM;
- }
-
- png_colorspace_sync_info(png_ptr, info_ptr);
-}
-#endif /* sRGB */
-
-
-#ifdef PNG_iCCP_SUPPORTED
-void PNGAPI
-png_set_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
- png_const_charp name, int compression_type,
- png_const_bytep profile, png_uint_32 proflen)
-{
- png_charp new_iccp_name;
- png_bytep new_iccp_profile;
- size_t length;
-
- png_debug1(1, "in %s storage function", "iCCP");
-
- if (png_ptr == NULL || info_ptr == NULL || name == NULL || profile == NULL)
- return;
-
- if (compression_type != PNG_COMPRESSION_TYPE_BASE)
- png_app_error(png_ptr, "Invalid iCCP compression method");
-
- /* Set the colorspace first because this validates the profile; do not
- * override previously set app cHRM or gAMA here (because likely as not the
- * application knows better than libpng what the correct values are.) Pass
- * the info_ptr color_type field to png_colorspace_set_ICC because in the
- * write case it has not yet been stored in png_ptr.
- */
- {
- int result = png_colorspace_set_ICC(png_ptr, &info_ptr->colorspace, name,
- proflen, profile, info_ptr->color_type);
-
- png_colorspace_sync_info(png_ptr, info_ptr);
-
- /* Don't do any of the copying if the profile was bad, or inconsistent. */
- if (result == 0)
- return;
-
- /* But do write the gAMA and cHRM chunks from the profile. */
- info_ptr->colorspace.flags |=
- PNG_COLORSPACE_FROM_gAMA|PNG_COLORSPACE_FROM_cHRM;
- }
-
- length = strlen(name)+1;
- new_iccp_name = png_voidcast(png_charp, png_malloc_warn(png_ptr, length));
-
- if (new_iccp_name == NULL)
- {
- png_benign_error(png_ptr, "Insufficient memory to process iCCP chunk");
-
- return;
- }
-
- memcpy(new_iccp_name, name, length);
- new_iccp_profile = png_voidcast(png_bytep,
- png_malloc_warn(png_ptr, proflen));
-
- if (new_iccp_profile == NULL)
- {
- png_free(png_ptr, new_iccp_name);
- png_benign_error(png_ptr,
- "Insufficient memory to process iCCP profile");
-
- return;
- }
-
- memcpy(new_iccp_profile, profile, proflen);
-
- png_free_data(png_ptr, info_ptr, PNG_FREE_ICCP, 0);
-
- info_ptr->iccp_proflen = proflen;
- info_ptr->iccp_name = new_iccp_name;
- info_ptr->iccp_profile = new_iccp_profile;
- info_ptr->free_me |= PNG_FREE_ICCP;
- info_ptr->valid |= PNG_INFO_iCCP;
-}
-#endif
-
-#ifdef PNG_TEXT_SUPPORTED
-void PNGAPI
-png_set_text(png_const_structrp png_ptr, png_inforp info_ptr,
- png_const_textp text_ptr, int num_text)
-{
- int ret;
- ret = png_set_text_2(png_ptr, info_ptr, text_ptr, num_text);
-
- if (ret != 0)
- png_error(png_ptr, "Insufficient memory to store text");
-}
-
-int /* PRIVATE */
-png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr,
- png_const_textp text_ptr, int num_text)
-{
- int i;
-
- png_debug1(1, "in %lx storage function", png_ptr == NULL ? 0xabadca11U :
- (unsigned long)png_ptr->chunk_name);
-
- if (png_ptr == NULL || info_ptr == NULL || num_text <= 0 || text_ptr == NULL)
- return(0);
-
- /* Make sure we have enough space in the "text" array in info_struct
- * to hold all of the incoming text_ptr objects. This compare can't overflow
- * because max_text >= num_text (anyway, subtract of two positive integers
- * can't overflow in any case.)
- */
- if (num_text > info_ptr->max_text - info_ptr->num_text)
- {
- int old_num_text = info_ptr->num_text;
- int max_text;
- png_textp new_text = NULL;
-
- /* Calculate an appropriate max_text, checking for overflow. */
- max_text = old_num_text;
- if (num_text <= INT_MAX - max_text)
- {
- max_text += num_text;
-
- /* Round up to a multiple of 8 */
- if (max_text < INT_MAX-8)
- max_text = (max_text + 8) & ~0x7;
-
- else
- max_text = INT_MAX;
-
- /* Now allocate a new array and copy the old members in; this does all
- * the overflow checks.
- */
- new_text = png_voidcast(png_textp,png_realloc_array(png_ptr,
- info_ptr->text, old_num_text, max_text-old_num_text,
- sizeof *new_text));
- }
-
- if (new_text == NULL)
- {
- png_chunk_report(png_ptr, "too many text chunks",
- PNG_CHUNK_WRITE_ERROR);
-
- return 1;
- }
-
- png_free(png_ptr, info_ptr->text);
-
- info_ptr->text = new_text;
- info_ptr->free_me |= PNG_FREE_TEXT;
- info_ptr->max_text = max_text;
- /* num_text is adjusted below as the entries are copied in */
-
- png_debug1(3, "allocated %d entries for info_ptr->text", max_text);
- }
-
- for (i = 0; i < num_text; i++)
- {
- size_t text_length, key_len;
- size_t lang_len, lang_key_len;
- png_textp textp = &(info_ptr->text[info_ptr->num_text]);
-
- if (text_ptr[i].key == NULL)
- continue;
-
- if (text_ptr[i].compression < PNG_TEXT_COMPRESSION_NONE ||
- text_ptr[i].compression >= PNG_TEXT_COMPRESSION_LAST)
- {
- png_chunk_report(png_ptr, "text compression mode is out of range",
- PNG_CHUNK_WRITE_ERROR);
- continue;
- }
-
- key_len = strlen(text_ptr[i].key);
-
- if (text_ptr[i].compression <= 0)
- {
- lang_len = 0;
- lang_key_len = 0;
- }
-
- else
-# ifdef PNG_iTXt_SUPPORTED
- {
- /* Set iTXt data */
-
- if (text_ptr[i].lang != NULL)
- lang_len = strlen(text_ptr[i].lang);
-
- else
- lang_len = 0;
-
- if (text_ptr[i].lang_key != NULL)
- lang_key_len = strlen(text_ptr[i].lang_key);
-
- else
- lang_key_len = 0;
- }
-# else /* iTXt */
- {
- png_chunk_report(png_ptr, "iTXt chunk not supported",
- PNG_CHUNK_WRITE_ERROR);
- continue;
- }
-# endif
-
- if (text_ptr[i].text == NULL || text_ptr[i].text[0] == '\0')
- {
- text_length = 0;
-# ifdef PNG_iTXt_SUPPORTED
- if (text_ptr[i].compression > 0)
- textp->compression = PNG_ITXT_COMPRESSION_NONE;
-
- else
-# endif
- textp->compression = PNG_TEXT_COMPRESSION_NONE;
- }
-
- else
- {
- text_length = strlen(text_ptr[i].text);
- textp->compression = text_ptr[i].compression;
- }
-
- textp->key = png_voidcast(png_charp,png_malloc_base(png_ptr,
- key_len + text_length + lang_len + lang_key_len + 4));
-
- if (textp->key == NULL)
- {
- png_chunk_report(png_ptr, "text chunk: out of memory",
- PNG_CHUNK_WRITE_ERROR);
-
- return 1;
- }
-
- png_debug2(2, "Allocated %lu bytes at %p in png_set_text",
- (unsigned long)(png_uint_32)
- (key_len + lang_len + lang_key_len + text_length + 4),
- textp->key);
-
- memcpy(textp->key, text_ptr[i].key, key_len);
- *(textp->key + key_len) = '\0';
-
- if (text_ptr[i].compression > 0)
- {
- textp->lang = textp->key + key_len + 1;
- memcpy(textp->lang, text_ptr[i].lang, lang_len);
- *(textp->lang + lang_len) = '\0';
- textp->lang_key = textp->lang + lang_len + 1;
- memcpy(textp->lang_key, text_ptr[i].lang_key, lang_key_len);
- *(textp->lang_key + lang_key_len) = '\0';
- textp->text = textp->lang_key + lang_key_len + 1;
- }
-
- else
- {
- textp->lang=NULL;
- textp->lang_key=NULL;
- textp->text = textp->key + key_len + 1;
- }
-
- if (text_length != 0)
- memcpy(textp->text, text_ptr[i].text, text_length);
-
- *(textp->text + text_length) = '\0';
-
-# ifdef PNG_iTXt_SUPPORTED
- if (textp->compression > 0)
- {
- textp->text_length = 0;
- textp->itxt_length = text_length;
- }
-
- else
-# endif
- {
- textp->text_length = text_length;
- textp->itxt_length = 0;
- }
-
- info_ptr->num_text++;
- png_debug1(3, "transferred text chunk %d", info_ptr->num_text);
- }
-
- return(0);
-}
-#endif
-
-#ifdef PNG_tIME_SUPPORTED
-void PNGAPI
-png_set_tIME(png_const_structrp png_ptr, png_inforp info_ptr,
- png_const_timep mod_time)
-{
- png_debug1(1, "in %s storage function", "tIME");
-
- if (png_ptr == NULL || info_ptr == NULL || mod_time == NULL ||
- (png_ptr->mode & PNG_WROTE_tIME) != 0)
- return;
-
- if (mod_time->month == 0 || mod_time->month > 12 ||
- mod_time->day == 0 || mod_time->day > 31 ||
- mod_time->hour > 23 || mod_time->minute > 59 ||
- mod_time->second > 60)
- {
- png_warning(png_ptr, "Ignoring invalid time value");
-
- return;
- }
-
- info_ptr->mod_time = *mod_time;
- info_ptr->valid |= PNG_INFO_tIME;
-}
-#endif
-
-#ifdef PNG_tRNS_SUPPORTED
-void PNGAPI
-png_set_tRNS(png_structrp png_ptr, png_inforp info_ptr,
- png_const_bytep trans_alpha, int num_trans, png_const_color_16p trans_color)
-{
- png_debug1(1, "in %s storage function", "tRNS");
-
- if (png_ptr == NULL || info_ptr == NULL)
-
- return;
-
- if (trans_alpha != NULL)
- {
- /* It may not actually be necessary to set png_ptr->trans_alpha here;
- * we do it for backward compatibility with the way the png_handle_tRNS
- * function used to do the allocation.
- *
- * 1.6.0: The above statement is incorrect; png_handle_tRNS effectively
- * relies on png_set_tRNS storing the information in png_struct
- * (otherwise it won't be there for the code in pngrtran.c).
- */
-
- png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0);
-
- if (num_trans > 0 && num_trans <= PNG_MAX_PALETTE_LENGTH)
- {
- /* Changed from num_trans to PNG_MAX_PALETTE_LENGTH in version 1.2.1 */
- info_ptr->trans_alpha = png_voidcast(png_bytep,
- png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH));
- memcpy(info_ptr->trans_alpha, trans_alpha, (size_t)num_trans);
- }
- png_ptr->trans_alpha = info_ptr->trans_alpha;
- }
-
- if (trans_color != NULL)
- {
-#ifdef PNG_WARNINGS_SUPPORTED
- if (info_ptr->bit_depth < 16)
- {
- int sample_max = (1 << info_ptr->bit_depth) - 1;
-
- if ((info_ptr->color_type == PNG_COLOR_TYPE_GRAY &&
- trans_color->gray > sample_max) ||
- (info_ptr->color_type == PNG_COLOR_TYPE_RGB &&
- (trans_color->red > sample_max ||
- trans_color->green > sample_max ||
- trans_color->blue > sample_max)))
- png_warning(png_ptr,
- "tRNS chunk has out-of-range samples for bit_depth");
- }
-#endif
-
- info_ptr->trans_color = *trans_color;
-
- if (num_trans == 0)
- num_trans = 1;
- }
-
- info_ptr->num_trans = (png_uint_16)num_trans;
-
- if (num_trans != 0)
- {
- info_ptr->valid |= PNG_INFO_tRNS;
- info_ptr->free_me |= PNG_FREE_TRNS;
- }
-}
-#endif
-
-#ifdef PNG_sPLT_SUPPORTED
-void PNGAPI
-png_set_sPLT(png_const_structrp png_ptr,
- png_inforp info_ptr, png_const_sPLT_tp entries, int nentries)
-/*
- * entries - array of png_sPLT_t structures
- * to be added to the list of palettes
- * in the info structure.
- *
- * nentries - number of palette structures to be
- * added.
- */
-{
- png_sPLT_tp np;
-
- if (png_ptr == NULL || info_ptr == NULL || nentries <= 0 || entries == NULL)
- return;
-
- /* Use the internal realloc function, which checks for all the possible
- * overflows. Notice that the parameters are (int) and (size_t)
- */
- np = png_voidcast(png_sPLT_tp,png_realloc_array(png_ptr,
- info_ptr->splt_palettes, info_ptr->splt_palettes_num, nentries,
- sizeof *np));
-
- if (np == NULL)
- {
- /* Out of memory or too many chunks */
- png_chunk_report(png_ptr, "too many sPLT chunks", PNG_CHUNK_WRITE_ERROR);
-
- return;
- }
-
- png_free(png_ptr, info_ptr->splt_palettes);
- info_ptr->splt_palettes = np;
- info_ptr->free_me |= PNG_FREE_SPLT;
-
- np += info_ptr->splt_palettes_num;
-
- do
- {
- size_t length;
-
- /* Skip invalid input entries */
- if (entries->name == NULL || entries->entries == NULL)
- {
- /* png_handle_sPLT doesn't do this, so this is an app error */
- png_app_error(png_ptr, "png_set_sPLT: invalid sPLT");
- /* Just skip the invalid entry */
- continue;
- }
-
- np->depth = entries->depth;
-
- /* In the event of out-of-memory just return - there's no point keeping
- * on trying to add sPLT chunks.
- */
- length = strlen(entries->name) + 1;
- np->name = png_voidcast(png_charp, png_malloc_base(png_ptr, length));
-
- if (np->name == NULL)
- break;
-
- memcpy(np->name, entries->name, length);
-
- /* IMPORTANT: we have memory now that won't get freed if something else
- * goes wrong; this code must free it. png_malloc_array produces no
- * warnings; use a png_chunk_report (below) if there is an error.
- */
- np->entries = png_voidcast(png_sPLT_entryp, png_malloc_array(png_ptr,
- entries->nentries, sizeof (png_sPLT_entry)));
-
- if (np->entries == NULL)
- {
- png_free(png_ptr, np->name);
- np->name = NULL;
- break;
- }
-
- np->nentries = entries->nentries;
- /* This multiply can't overflow because png_malloc_array has already
- * checked it when doing the allocation.
- */
- memcpy(np->entries, entries->entries,
- (unsigned int)entries->nentries * sizeof (png_sPLT_entry));
-
- /* Note that 'continue' skips the advance of the out pointer and out
- * count, so an invalid entry is not added.
- */
- info_ptr->valid |= PNG_INFO_sPLT;
- ++(info_ptr->splt_palettes_num);
- ++np;
- ++entries;
- }
- while (--nentries);
-
- if (nentries > 0)
- png_chunk_report(png_ptr, "sPLT out of memory", PNG_CHUNK_WRITE_ERROR);
-}
-#endif /* sPLT */
-
-#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
-static png_byte
-check_location(png_const_structrp png_ptr, int location)
-{
- location &= (PNG_HAVE_IHDR|PNG_HAVE_PLTE|PNG_AFTER_IDAT);
-
- /* New in 1.6.0; copy the location and check it. This is an API
- * change; previously the app had to use the
- * png_set_unknown_chunk_location API below for each chunk.
- */
- if (location == 0 && (png_ptr->mode & PNG_IS_READ_STRUCT) == 0)
- {
- /* Write struct, so unknown chunks come from the app */
- png_app_warning(png_ptr,
- "png_set_unknown_chunks now expects a valid location");
- /* Use the old behavior */
- location = (png_byte)(png_ptr->mode &
- (PNG_HAVE_IHDR|PNG_HAVE_PLTE|PNG_AFTER_IDAT));
- }
-
- /* This need not be an internal error - if the app calls
- * png_set_unknown_chunks on a read pointer it must get the location right.
- */
- if (location == 0)
- png_error(png_ptr, "invalid location in png_set_unknown_chunks");
-
- /* Now reduce the location to the top-most set bit by removing each least
- * significant bit in turn.
- */
- while (location != (location & -location))
- location &= ~(location & -location);
-
- /* The cast is safe because 'location' is a bit mask and only the low four
- * bits are significant.
- */
- return (png_byte)location;
-}
-
-void PNGAPI
-png_set_unknown_chunks(png_const_structrp png_ptr,
- png_inforp info_ptr, png_const_unknown_chunkp unknowns, int num_unknowns)
-{
- png_unknown_chunkp np;
-
- if (png_ptr == NULL || info_ptr == NULL || num_unknowns <= 0 ||
- unknowns == NULL)
- return;
-
- /* Check for the failure cases where support has been disabled at compile
- * time. This code is hardly ever compiled - it's here because
- * STORE_UNKNOWN_CHUNKS is set by both read and write code (compiling in this
- * code) but may be meaningless if the read or write handling of unknown
- * chunks is not compiled in.
- */
-# if !defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) && \
- defined(PNG_READ_SUPPORTED)
- if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0)
- {
- png_app_error(png_ptr, "no unknown chunk support on read");
-
- return;
- }
-# endif
-# if !defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) && \
- defined(PNG_WRITE_SUPPORTED)
- if ((png_ptr->mode & PNG_IS_READ_STRUCT) == 0)
- {
- png_app_error(png_ptr, "no unknown chunk support on write");
-
- return;
- }
-# endif
-
- /* Prior to 1.6.0 this code used png_malloc_warn; however, this meant that
- * unknown critical chunks could be lost with just a warning resulting in
- * undefined behavior. Now png_chunk_report is used to provide behavior
- * appropriate to read or write.
- */
- np = png_voidcast(png_unknown_chunkp, png_realloc_array(png_ptr,
- info_ptr->unknown_chunks, info_ptr->unknown_chunks_num, num_unknowns,
- sizeof *np));
-
- if (np == NULL)
- {
- png_chunk_report(png_ptr, "too many unknown chunks",
- PNG_CHUNK_WRITE_ERROR);
-
- return;
- }
-
- png_free(png_ptr, info_ptr->unknown_chunks);
- info_ptr->unknown_chunks = np; /* safe because it is initialized */
- info_ptr->free_me |= PNG_FREE_UNKN;
-
- np += info_ptr->unknown_chunks_num;
-
- /* Increment unknown_chunks_num each time round the loop to protect the
- * just-allocated chunk data.
- */
- for (; num_unknowns > 0; --num_unknowns, ++unknowns)
- {
- memcpy(np->name, unknowns->name, (sizeof np->name));
- np->name[(sizeof np->name)-1] = '\0';
- np->location = check_location(png_ptr, unknowns->location);
-
- if (unknowns->size == 0)
- {
- np->data = NULL;
- np->size = 0;
- }
-
- else
- {
- np->data = png_voidcast(png_bytep,
- png_malloc_base(png_ptr, unknowns->size));
-
- if (np->data == NULL)
- {
- png_chunk_report(png_ptr, "unknown chunk: out of memory",
- PNG_CHUNK_WRITE_ERROR);
- /* But just skip storing the unknown chunk */
- continue;
- }
-
- memcpy(np->data, unknowns->data, unknowns->size);
- np->size = unknowns->size;
- }
-
- /* These increments are skipped on out-of-memory for the data - the
- * unknown chunk entry gets overwritten if the png_chunk_report returns.
- * This is correct in the read case (the chunk is just dropped.)
- */
- ++np;
- ++(info_ptr->unknown_chunks_num);
- }
-}
-
-void PNGAPI
-png_set_unknown_chunk_location(png_const_structrp png_ptr, png_inforp info_ptr,
- int chunk, int location)
-{
- /* This API is pretty pointless in 1.6.0 because the location can be set
- * before the call to png_set_unknown_chunks.
- *
- * TODO: add a png_app_warning in 1.7
- */
- if (png_ptr != NULL && info_ptr != NULL && chunk >= 0 &&
- chunk < info_ptr->unknown_chunks_num)
- {
- if ((location & (PNG_HAVE_IHDR|PNG_HAVE_PLTE|PNG_AFTER_IDAT)) == 0)
- {
- png_app_error(png_ptr, "invalid unknown chunk location");
- /* Fake out the pre 1.6.0 behavior: */
- if (((unsigned int)location & PNG_HAVE_IDAT) != 0) /* undocumented! */
- location = PNG_AFTER_IDAT;
-
- else
- location = PNG_HAVE_IHDR; /* also undocumented */
- }
-
- info_ptr->unknown_chunks[chunk].location =
- check_location(png_ptr, location);
- }
-}
-#endif /* STORE_UNKNOWN_CHUNKS */
-
-#ifdef PNG_MNG_FEATURES_SUPPORTED
-png_uint_32 PNGAPI
-png_permit_mng_features (png_structrp png_ptr, png_uint_32 mng_features)
-{
- png_debug(1, "in png_permit_mng_features");
-
- if (png_ptr == NULL)
- return 0;
-
- png_ptr->mng_features_permitted = mng_features & PNG_ALL_MNG_FEATURES;
-
- return png_ptr->mng_features_permitted;
-}
-#endif
-
-#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
-static unsigned int
-add_one_chunk(png_bytep list, unsigned int count, png_const_bytep add, int keep)
-{
- unsigned int i;
-
- /* Utility function: update the 'keep' state of a chunk if it is already in
- * the list, otherwise add it to the list.
- */
- for (i=0; i<count; ++i, list += 5)
- {
- if (memcmp(list, add, 4) == 0)
- {
- list[4] = (png_byte)keep;
-
- return count;
- }
- }
-
- if (keep != PNG_HANDLE_CHUNK_AS_DEFAULT)
- {
- ++count;
- memcpy(list, add, 4);
- list[4] = (png_byte)keep;
- }
-
- return count;
-}
-
-void PNGAPI
-png_set_keep_unknown_chunks(png_structrp png_ptr, int keep,
- png_const_bytep chunk_list, int num_chunks_in)
-{
- png_bytep new_list;
- unsigned int num_chunks, old_num_chunks;
-
- if (png_ptr == NULL)
- return;
-
- if (keep < 0 || keep >= PNG_HANDLE_CHUNK_LAST)
- {
- png_app_error(png_ptr, "png_set_keep_unknown_chunks: invalid keep");
-
- return;
- }
-
- if (num_chunks_in <= 0)
- {
- png_ptr->unknown_default = keep;
-
- /* '0' means just set the flags, so stop here */
- if (num_chunks_in == 0)
- return;
- }
-
- if (num_chunks_in < 0)
- {
- /* Ignore all unknown chunks and all chunks recognized by
- * libpng except for IHDR, PLTE, tRNS, IDAT, and IEND
- */
- static const png_byte chunks_to_ignore[] = {
- 98, 75, 71, 68, '\0', /* bKGD */
- 99, 72, 82, 77, '\0', /* cHRM */
- 101, 88, 73, 102, '\0', /* eXIf */
- 103, 65, 77, 65, '\0', /* gAMA */
- 104, 73, 83, 84, '\0', /* hIST */
- 105, 67, 67, 80, '\0', /* iCCP */
- 105, 84, 88, 116, '\0', /* iTXt */
- 111, 70, 70, 115, '\0', /* oFFs */
- 112, 67, 65, 76, '\0', /* pCAL */
- 112, 72, 89, 115, '\0', /* pHYs */
- 115, 66, 73, 84, '\0', /* sBIT */
- 115, 67, 65, 76, '\0', /* sCAL */
- 115, 80, 76, 84, '\0', /* sPLT */
- 115, 84, 69, 82, '\0', /* sTER */
- 115, 82, 71, 66, '\0', /* sRGB */
- 116, 69, 88, 116, '\0', /* tEXt */
- 116, 73, 77, 69, '\0', /* tIME */
- 122, 84, 88, 116, '\0' /* zTXt */
- };
-
- chunk_list = chunks_to_ignore;
- num_chunks = (unsigned int)/*SAFE*/(sizeof chunks_to_ignore)/5U;
- }
-
- else /* num_chunks_in > 0 */
- {
- if (chunk_list == NULL)
- {
- /* Prior to 1.6.0 this was silently ignored, now it is an app_error
- * which can be switched off.
- */
- png_app_error(png_ptr, "png_set_keep_unknown_chunks: no chunk list");
-
- return;
- }
-
- num_chunks = (unsigned int)num_chunks_in;
- }
-
- old_num_chunks = png_ptr->num_chunk_list;
- if (png_ptr->chunk_list == NULL)
- old_num_chunks = 0;
-
- /* Since num_chunks is always restricted to UINT_MAX/5 this can't overflow.
- */
- if (num_chunks + old_num_chunks > UINT_MAX/5)
- {
- png_app_error(png_ptr, "png_set_keep_unknown_chunks: too many chunks");
-
- return;
- }
-
- /* If these chunks are being reset to the default then no more memory is
- * required because add_one_chunk above doesn't extend the list if the 'keep'
- * parameter is the default.
- */
- if (keep != 0)
- {
- new_list = png_voidcast(png_bytep, png_malloc(png_ptr,
- 5 * (num_chunks + old_num_chunks)));
-
- if (old_num_chunks > 0)
- memcpy(new_list, png_ptr->chunk_list, 5*old_num_chunks);
- }
-
- else if (old_num_chunks > 0)
- new_list = png_ptr->chunk_list;
-
- else
- new_list = NULL;
-
- /* Add the new chunks together with each one's handling code. If the chunk
- * already exists the code is updated, otherwise the chunk is added to the
- * end. (In libpng 1.6.0 order no longer matters because this code enforces
- * the earlier convention that the last setting is the one that is used.)
- */
- if (new_list != NULL)
- {
- png_const_bytep inlist;
- png_bytep outlist;
- unsigned int i;
-
- for (i=0; i<num_chunks; ++i)
- {
- old_num_chunks = add_one_chunk(new_list, old_num_chunks,
- chunk_list+5*i, keep);
- }
-
- /* Now remove any spurious 'default' entries. */
- num_chunks = 0;
- for (i=0, inlist=outlist=new_list; i<old_num_chunks; ++i, inlist += 5)
- {
- if (inlist[4])
- {
- if (outlist != inlist)
- memcpy(outlist, inlist, 5);
- outlist += 5;
- ++num_chunks;
- }
- }
-
- /* This means the application has removed all the specialized handling. */
- if (num_chunks == 0)
- {
- if (png_ptr->chunk_list != new_list)
- png_free(png_ptr, new_list);
-
- new_list = NULL;
- }
- }
-
- else
- num_chunks = 0;
-
- png_ptr->num_chunk_list = num_chunks;
-
- if (png_ptr->chunk_list != new_list)
- {
- if (png_ptr->chunk_list != NULL)
- png_free(png_ptr, png_ptr->chunk_list);
-
- png_ptr->chunk_list = new_list;
- }
-}
-#endif
-
-#ifdef PNG_READ_USER_CHUNKS_SUPPORTED
-void PNGAPI
-png_set_read_user_chunk_fn(png_structrp png_ptr, png_voidp user_chunk_ptr,
- png_user_chunk_ptr read_user_chunk_fn)
-{
- png_debug(1, "in png_set_read_user_chunk_fn");
-
- if (png_ptr == NULL)
- return;
-
- png_ptr->read_user_chunk_fn = read_user_chunk_fn;
- png_ptr->user_chunk_ptr = user_chunk_ptr;
-}
-#endif
-
-#ifdef PNG_INFO_IMAGE_SUPPORTED
-void PNGAPI
-png_set_rows(png_const_structrp png_ptr, png_inforp info_ptr,
- png_bytepp row_pointers)
-{
- png_debug1(1, "in %s storage function", "rows");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- if (info_ptr->row_pointers != NULL &&
- (info_ptr->row_pointers != row_pointers))
- png_free_data(png_ptr, info_ptr, PNG_FREE_ROWS, 0);
-
- info_ptr->row_pointers = row_pointers;
-
- if (row_pointers != NULL)
- info_ptr->valid |= PNG_INFO_IDAT;
-}
-#endif
-
-void PNGAPI
-png_set_compression_buffer_size(png_structrp png_ptr, size_t size)
-{
- if (png_ptr == NULL)
- return;
-
- if (size == 0 || size > PNG_UINT_31_MAX)
- png_error(png_ptr, "invalid compression buffer size");
-
-# ifdef PNG_SEQUENTIAL_READ_SUPPORTED
- if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0)
- {
- png_ptr->IDAT_read_size = (png_uint_32)size; /* checked above */
- return;
- }
-# endif
-
-# ifdef PNG_WRITE_SUPPORTED
- if ((png_ptr->mode & PNG_IS_READ_STRUCT) == 0)
- {
- if (png_ptr->zowner != 0)
- {
- png_warning(png_ptr,
- "Compression buffer size cannot be changed because it is in use");
-
- return;
- }
-
-#ifndef __COVERITY__
- /* Some compilers complain that this is always false. However, it
- * can be true when integer overflow happens.
- */
- if (size > ZLIB_IO_MAX)
- {
- png_warning(png_ptr,
- "Compression buffer size limited to system maximum");
- size = ZLIB_IO_MAX; /* must fit */
- }
-#endif
-
- if (size < 6)
- {
- /* Deflate will potentially go into an infinite loop on a SYNC_FLUSH
- * if this is permitted.
- */
- png_warning(png_ptr,
- "Compression buffer size cannot be reduced below 6");
-
- return;
- }
-
- if (png_ptr->zbuffer_size != size)
- {
- png_free_buffer_list(png_ptr, &png_ptr->zbuffer_list);
- png_ptr->zbuffer_size = (uInt)size;
- }
- }
-# endif
-}
-
-void PNGAPI
-png_set_invalid(png_const_structrp png_ptr, png_inforp info_ptr, int mask)
-{
- if (png_ptr != NULL && info_ptr != NULL)
- info_ptr->valid &= (unsigned int)(~mask);
-}
-
-
-#ifdef PNG_SET_USER_LIMITS_SUPPORTED
-/* This function was added to libpng 1.2.6 */
-void PNGAPI
-png_set_user_limits (png_structrp png_ptr, png_uint_32 user_width_max,
- png_uint_32 user_height_max)
-{
- /* Images with dimensions larger than these limits will be
- * rejected by png_set_IHDR(). To accept any PNG datastream
- * regardless of dimensions, set both limits to 0x7fffffff.
- */
- if (png_ptr == NULL)
- return;
-
- png_ptr->user_width_max = user_width_max;
- png_ptr->user_height_max = user_height_max;
-}
-
-/* This function was added to libpng 1.4.0 */
-void PNGAPI
-png_set_chunk_cache_max (png_structrp png_ptr, png_uint_32 user_chunk_cache_max)
-{
- if (png_ptr != NULL)
- png_ptr->user_chunk_cache_max = user_chunk_cache_max;
-}
-
-/* This function was added to libpng 1.4.1 */
-void PNGAPI
-png_set_chunk_malloc_max (png_structrp png_ptr,
- png_alloc_size_t user_chunk_malloc_max)
-{
- if (png_ptr != NULL)
- png_ptr->user_chunk_malloc_max = user_chunk_malloc_max;
-}
-#endif /* ?SET_USER_LIMITS */
-
-
-#ifdef PNG_BENIGN_ERRORS_SUPPORTED
-void PNGAPI
-png_set_benign_errors(png_structrp png_ptr, int allowed)
-{
- png_debug(1, "in png_set_benign_errors");
-
- /* If allowed is 1, png_benign_error() is treated as a warning.
- *
- * If allowed is 0, png_benign_error() is treated as an error (which
- * is the default behavior if png_set_benign_errors() is not called).
- */
-
- if (allowed != 0)
- png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN |
- PNG_FLAG_APP_WARNINGS_WARN | PNG_FLAG_APP_ERRORS_WARN;
-
- else
- png_ptr->flags &= ~(PNG_FLAG_BENIGN_ERRORS_WARN |
- PNG_FLAG_APP_WARNINGS_WARN | PNG_FLAG_APP_ERRORS_WARN);
-}
-#endif /* BENIGN_ERRORS */
-
-#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
- /* Whether to report invalid palette index; added at libng-1.5.10.
- * It is possible for an indexed (color-type==3) PNG file to contain
- * pixels with invalid (out-of-range) indexes if the PLTE chunk has
- * fewer entries than the image's bit-depth would allow. We recover
- * from this gracefully by filling any incomplete palette with zeros
- * (opaque black). By default, when this occurs libpng will issue
- * a benign error. This API can be used to override that behavior.
- */
-void PNGAPI
-png_set_check_for_invalid_index(png_structrp png_ptr, int allowed)
-{
- png_debug(1, "in png_set_check_for_invalid_index");
-
- if (allowed > 0)
- png_ptr->num_palette_max = 0;
-
- else
- png_ptr->num_palette_max = -1;
-}
-#endif
-
-#if defined(PNG_TEXT_SUPPORTED) || defined(PNG_pCAL_SUPPORTED) || \
- defined(PNG_iCCP_SUPPORTED) || defined(PNG_sPLT_SUPPORTED)
-/* Check that the tEXt or zTXt keyword is valid per PNG 1.0 specification,
- * and if invalid, correct the keyword rather than discarding the entire
- * chunk. The PNG 1.0 specification requires keywords 1-79 characters in
- * length, forbids leading or trailing whitespace, multiple internal spaces,
- * and the non-break space (0x80) from ISO 8859-1. Returns keyword length.
- *
- * The 'new_key' buffer must be 80 characters in size (for the keyword plus a
- * trailing '\0'). If this routine returns 0 then there was no keyword, or a
- * valid one could not be generated, and the caller must png_error.
- */
-png_uint_32 /* PRIVATE */
-png_check_keyword(png_structrp png_ptr, png_const_charp key, png_bytep new_key)
-{
-#ifdef PNG_WARNINGS_SUPPORTED
- png_const_charp orig_key = key;
-#endif
- png_uint_32 key_len = 0;
- int bad_character = 0;
- int space = 1;
-
- png_debug(1, "in png_check_keyword");
-
- if (key == NULL)
- {
- *new_key = 0;
- return 0;
- }
-
- while (*key && key_len < 79)
- {
- png_byte ch = (png_byte)*key++;
-
- if ((ch > 32 && ch <= 126) || (ch >= 161 /*&& ch <= 255*/))
- {
- *new_key++ = ch; ++key_len; space = 0;
- }
-
- else if (space == 0)
- {
- /* A space or an invalid character when one wasn't seen immediately
- * before; output just a space.
- */
- *new_key++ = 32; ++key_len; space = 1;
-
- /* If the character was not a space then it is invalid. */
- if (ch != 32)
- bad_character = ch;
- }
-
- else if (bad_character == 0)
- bad_character = ch; /* just skip it, record the first error */
- }
-
- if (key_len > 0 && space != 0) /* trailing space */
- {
- --key_len; --new_key;
- if (bad_character == 0)
- bad_character = 32;
- }
-
- /* Terminate the keyword */
- *new_key = 0;
-
- if (key_len == 0)
- return 0;
-
-#ifdef PNG_WARNINGS_SUPPORTED
- /* Try to only output one warning per keyword: */
- if (*key != 0) /* keyword too long */
- png_warning(png_ptr, "keyword truncated");
-
- else if (bad_character != 0)
- {
- PNG_WARNING_PARAMETERS(p)
-
- png_warning_parameter(p, 1, orig_key);
- png_warning_parameter_signed(p, 2, PNG_NUMBER_FORMAT_02x, bad_character);
-
- png_formatted_warning(png_ptr, p, "keyword \"@1\": bad character '0x@2'");
- }
-#else /* !WARNINGS */
- PNG_UNUSED(png_ptr)
-#endif /* !WARNINGS */
-
- return key_len;
-}
-#endif /* TEXT || pCAL || iCCP || sPLT */
-#endif /* READ || WRITE */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngset.lo b/3rdparty/libpng/libpng-1.6.37/pngset.lo
deleted file mode 100644
index ca64809..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngset.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# pngset.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/pngset.o'
-
-# Name of the non-PIC object
-non_pic_object='pngset.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/pngset.o b/3rdparty/libpng/libpng-1.6.37/pngset.o
deleted file mode 100644
index c46b839..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngset.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngstest b/3rdparty/libpng/libpng-1.6.37/pngstest
deleted file mode 100755
index a8f9b37..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngstest
+++ /dev/null
@@ -1,210 +0,0 @@
-#! /bin/bash
-
-# pngstest - temporary wrapper script for .libs/pngstest
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# The pngstest program cannot be directly executed until all the libtool
-# libraries that it depends on are installed.
-#
-# This wrapper script should never be moved out of the build directory.
-# If it is, it will not operate correctly.
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
-
-# Be Bourne compatible
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
-else
- case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-relink_command=""
-
-# This environment variable determines our operation mode.
-if test "$libtool_install_magic" = "%%%MAGIC variable%%%"; then
- # install mode needs the following variables:
- generated_by_libtool_version='2.4.6'
- notinst_deplibs=' libpng16.la'
-else
- # When we are sourced in execute mode, $file and $ECHO are already set.
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- file="$0"
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
- eval 'cat <<_LTECHO_EOF
-$1
-_LTECHO_EOF'
-}
- ECHO="printf %s\\n"
- fi
-
-# Very basic option parsing. These options are (a) specific to
-# the libtool wrapper, (b) are identical between the wrapper
-# /script/ and the wrapper /executable/ that is used only on
-# windows platforms, and (c) all begin with the string --lt-
-# (application programs are unlikely to have options that match
-# this pattern).
-#
-# There are only two supported options: --lt-debug and
-# --lt-dump-script. There is, deliberately, no --lt-help.
-#
-# The first argument to this parsing function should be the
-# script's ./libtool value, followed by no.
-lt_option_debug=
-func_parse_lt_options ()
-{
- lt_script_arg0=$0
- shift
- for lt_opt
- do
- case "$lt_opt" in
- --lt-debug) lt_option_debug=1 ;;
- --lt-dump-script)
- lt_dump_D=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%/[^/]*$%%'`
- test "X$lt_dump_D" = "X$lt_script_arg0" && lt_dump_D=.
- lt_dump_F=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%^.*/%%'`
- cat "$lt_dump_D/$lt_dump_F"
- exit 0
- ;;
- --lt-*)
- $ECHO "Unrecognized --lt- option: '$lt_opt'" 1>&2
- exit 1
- ;;
- esac
- done
-
- # Print the debug banner immediately:
- if test -n "$lt_option_debug"; then
- echo "pngstest:pngstest:$LINENO: libtool wrapper (GNU libtool) 2.4.6" 1>&2
- fi
-}
-
-# Used when --lt-debug. Prints its arguments to stdout
-# (redirection is the responsibility of the caller)
-func_lt_dump_args ()
-{
- lt_dump_args_N=1;
- for lt_arg
- do
- $ECHO "pngstest:pngstest:$LINENO: newargv[$lt_dump_args_N]: $lt_arg"
- lt_dump_args_N=`expr $lt_dump_args_N + 1`
- done
-}
-
-# Core function for launching the target application
-func_exec_program_core ()
-{
-
- if test -n "$lt_option_debug"; then
- $ECHO "pngstest:pngstest:$LINENO: newargv[0]: $progdir/$program" 1>&2
- func_lt_dump_args ${1+"$@"} 1>&2
- fi
- exec "$progdir/$program" ${1+"$@"}
-
- $ECHO "$0: cannot exec $program $*" 1>&2
- exit 1
-}
-
-# A function to encapsulate launching the target application
-# Strips options in the --lt-* namespace from $@ and
-# launches target application with the remaining arguments.
-func_exec_program ()
-{
- case " $* " in
- *\ --lt-*)
- for lt_wr_arg
- do
- case $lt_wr_arg in
- --lt-*) ;;
- *) set x "$@" "$lt_wr_arg"; shift;;
- esac
- shift
- done ;;
- esac
- func_exec_program_core ${1+"$@"}
-}
-
- # Parse options
- func_parse_lt_options "$0" ${1+"$@"}
-
- # Find the directory that this script lives in.
- thisdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
- test "x$thisdir" = "x$file" && thisdir=.
-
- # Follow symbolic links until we get to the real thisdir.
- file=`ls -ld "$file" | /bin/sed -n 's/.*-> //p'`
- while test -n "$file"; do
- destdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
-
- # If there was a directory component, then change thisdir.
- if test "x$destdir" != "x$file"; then
- case "$destdir" in
- [\\/]* | [A-Za-z]:[\\/]*) thisdir="$destdir" ;;
- *) thisdir="$thisdir/$destdir" ;;
- esac
- fi
-
- file=`$ECHO "$file" | /bin/sed 's%^.*/%%'`
- file=`ls -ld "$thisdir/$file" | /bin/sed -n 's/.*-> //p'`
- done
-
- # Usually 'no', except on cygwin/mingw when embedded into
- # the cwrapper.
- WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=no
- if test "$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR" = "yes"; then
- # special case for '.'
- if test "$thisdir" = "."; then
- thisdir=`pwd`
- fi
- # remove .libs from thisdir
- case "$thisdir" in
- *[\\/].libs ) thisdir=`$ECHO "$thisdir" | /bin/sed 's%[\\/][^\\/]*$%%'` ;;
- .libs ) thisdir=. ;;
- esac
- fi
-
- # Try to get the absolute directory name.
- absdir=`cd "$thisdir" && pwd`
- test -n "$absdir" && thisdir="$absdir"
-
- program='pngstest'
- progdir="$thisdir/.libs"
-
-
- if test -f "$progdir/$program"; then
- # Add our own library path to LD_LIBRARY_PATH
- LD_LIBRARY_PATH="/home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/.libs:$LD_LIBRARY_PATH"
-
- # Some systems cannot cope with colon-terminated LD_LIBRARY_PATH
- # The second colon is a workaround for a bug in BeOS R4 sed
- LD_LIBRARY_PATH=`$ECHO "$LD_LIBRARY_PATH" | /bin/sed 's/::*$//'`
-
- export LD_LIBRARY_PATH
-
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- # Run the actual program with our arguments.
- func_exec_program ${1+"$@"}
- fi
- else
- # The program doesn't exist.
- $ECHO "$0: error: '$progdir/$program' does not exist" 1>&2
- $ECHO "This script is just a wrapper for $program." 1>&2
- $ECHO "See the libtool documentation for more information." 1>&2
- exit 1
- fi
-fi
diff --git a/3rdparty/libpng/libpng-1.6.37/pngstruct.h b/3rdparty/libpng/libpng-1.6.37/pngstruct.h
deleted file mode 100644
index 8bdc7ce..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngstruct.h
+++ /dev/null
@@ -1,489 +0,0 @@
-
-/* pngstruct.h - header file for PNG reference library
- *
- * Copyright (c) 2018-2019 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-/* The structure that holds the information to read and write PNG files.
- * The only people who need to care about what is inside of this are the
- * people who will be modifying the library for their own special needs.
- * It should NOT be accessed directly by an application.
- */
-
-#ifndef PNGSTRUCT_H
-#define PNGSTRUCT_H
-/* zlib.h defines the structure z_stream, an instance of which is included
- * in this structure and is required for decompressing the LZ compressed
- * data in PNG files.
- */
-#ifndef ZLIB_CONST
- /* We must ensure that zlib uses 'const' in declarations. */
-# define ZLIB_CONST
-#endif
-#include "zlib.h"
-#ifdef const
- /* zlib.h sometimes #defines const to nothing, undo this. */
-# undef const
-#endif
-
-/* zlib.h has mediocre z_const use before 1.2.6, this stuff is for compatibility
- * with older builds.
- */
-#if ZLIB_VERNUM < 0x1260
-# define PNGZ_MSG_CAST(s) png_constcast(char*,s)
-# define PNGZ_INPUT_CAST(b) png_constcast(png_bytep,b)
-#else
-# define PNGZ_MSG_CAST(s) (s)
-# define PNGZ_INPUT_CAST(b) (b)
-#endif
-
-/* zlib.h declares a magic type 'uInt' that limits the amount of data that zlib
- * can handle at once. This type need be no larger than 16 bits (so maximum of
- * 65535), this define allows us to discover how big it is, but limited by the
- * maximum for size_t. The value can be overridden in a library build
- * (pngusr.h, or set it in CPPFLAGS) and it works to set it to a considerably
- * lower value (e.g. 255 works). A lower value may help memory usage (slightly)
- * and may even improve performance on some systems (and degrade it on others.)
- */
-#ifndef ZLIB_IO_MAX
-# define ZLIB_IO_MAX ((uInt)-1)
-#endif
-
-#ifdef PNG_WRITE_SUPPORTED
-/* The type of a compression buffer list used by the write code. */
-typedef struct png_compression_buffer
-{
- struct png_compression_buffer *next;
- png_byte output[1]; /* actually zbuf_size */
-} png_compression_buffer, *png_compression_bufferp;
-
-#define PNG_COMPRESSION_BUFFER_SIZE(pp)\
- (offsetof(png_compression_buffer, output) + (pp)->zbuffer_size)
-#endif
-
-/* Colorspace support; structures used in png_struct, png_info and in internal
- * functions to hold and communicate information about the color space.
- *
- * PNG_COLORSPACE_SUPPORTED is only required if the application will perform
- * colorspace corrections, otherwise all the colorspace information can be
- * skipped and the size of libpng can be reduced (significantly) by compiling
- * out the colorspace support.
- */
-#ifdef PNG_COLORSPACE_SUPPORTED
-/* The chromaticities of the red, green and blue colorants and the chromaticity
- * of the corresponding white point (i.e. of rgb(1.0,1.0,1.0)).
- */
-typedef struct png_xy
-{
- png_fixed_point redx, redy;
- png_fixed_point greenx, greeny;
- png_fixed_point bluex, bluey;
- png_fixed_point whitex, whitey;
-} png_xy;
-
-/* The same data as above but encoded as CIE XYZ values. When this data comes
- * from chromaticities the sum of the Y values is assumed to be 1.0
- */
-typedef struct png_XYZ
-{
- png_fixed_point red_X, red_Y, red_Z;
- png_fixed_point green_X, green_Y, green_Z;
- png_fixed_point blue_X, blue_Y, blue_Z;
-} png_XYZ;
-#endif /* COLORSPACE */
-
-#if defined(PNG_COLORSPACE_SUPPORTED) || defined(PNG_GAMMA_SUPPORTED)
-/* A colorspace is all the above plus, potentially, profile information;
- * however at present libpng does not use the profile internally so it is only
- * stored in the png_info struct (if iCCP is supported.) The rendering intent
- * is retained here and is checked.
- *
- * The file gamma encoding information is also stored here and gamma correction
- * is done by libpng, whereas color correction must currently be done by the
- * application.
- */
-typedef struct png_colorspace
-{
-#ifdef PNG_GAMMA_SUPPORTED
- png_fixed_point gamma; /* File gamma */
-#endif
-
-#ifdef PNG_COLORSPACE_SUPPORTED
- png_xy end_points_xy; /* End points as chromaticities */
- png_XYZ end_points_XYZ; /* End points as CIE XYZ colorant values */
- png_uint_16 rendering_intent; /* Rendering intent of a profile */
-#endif
-
- /* Flags are always defined to simplify the code. */
- png_uint_16 flags; /* As defined below */
-} png_colorspace, * PNG_RESTRICT png_colorspacerp;
-
-typedef const png_colorspace * PNG_RESTRICT png_const_colorspacerp;
-
-/* General flags for the 'flags' field */
-#define PNG_COLORSPACE_HAVE_GAMMA 0x0001
-#define PNG_COLORSPACE_HAVE_ENDPOINTS 0x0002
-#define PNG_COLORSPACE_HAVE_INTENT 0x0004
-#define PNG_COLORSPACE_FROM_gAMA 0x0008
-#define PNG_COLORSPACE_FROM_cHRM 0x0010
-#define PNG_COLORSPACE_FROM_sRGB 0x0020
-#define PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB 0x0040
-#define PNG_COLORSPACE_MATCHES_sRGB 0x0080 /* exact match on profile */
-#define PNG_COLORSPACE_INVALID 0x8000
-#define PNG_COLORSPACE_CANCEL(flags) (0xffff ^ (flags))
-#endif /* COLORSPACE || GAMMA */
-
-struct png_struct_def
-{
-#ifdef PNG_SETJMP_SUPPORTED
- jmp_buf jmp_buf_local; /* New name in 1.6.0 for jmp_buf in png_struct */
- png_longjmp_ptr longjmp_fn;/* setjmp non-local goto function. */
- jmp_buf *jmp_buf_ptr; /* passed to longjmp_fn */
- size_t jmp_buf_size; /* size of the above, if allocated */
-#endif
- png_error_ptr error_fn; /* function for printing errors and aborting */
-#ifdef PNG_WARNINGS_SUPPORTED
- png_error_ptr warning_fn; /* function for printing warnings */
-#endif
- png_voidp error_ptr; /* user supplied struct for error functions */
- png_rw_ptr write_data_fn; /* function for writing output data */
- png_rw_ptr read_data_fn; /* function for reading input data */
- png_voidp io_ptr; /* ptr to application struct for I/O functions */
-
-#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
- png_user_transform_ptr read_user_transform_fn; /* user read transform */
-#endif
-
-#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
- png_user_transform_ptr write_user_transform_fn; /* user write transform */
-#endif
-
-/* These were added in libpng-1.0.2 */
-#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED
-#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
- defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
- png_voidp user_transform_ptr; /* user supplied struct for user transform */
- png_byte user_transform_depth; /* bit depth of user transformed pixels */
- png_byte user_transform_channels; /* channels in user transformed pixels */
-#endif
-#endif
-
- png_uint_32 mode; /* tells us where we are in the PNG file */
- png_uint_32 flags; /* flags indicating various things to libpng */
- png_uint_32 transformations; /* which transformations to perform */
-
- png_uint_32 zowner; /* ID (chunk type) of zstream owner, 0 if none */
- z_stream zstream; /* decompression structure */
-
-#ifdef PNG_WRITE_SUPPORTED
- png_compression_bufferp zbuffer_list; /* Created on demand during write */
- uInt zbuffer_size; /* size of the actual buffer */
-
- int zlib_level; /* holds zlib compression level */
- int zlib_method; /* holds zlib compression method */
- int zlib_window_bits; /* holds zlib compression window bits */
- int zlib_mem_level; /* holds zlib compression memory level */
- int zlib_strategy; /* holds zlib compression strategy */
-#endif
-/* Added at libpng 1.5.4 */
-#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
- int zlib_text_level; /* holds zlib compression level */
- int zlib_text_method; /* holds zlib compression method */
- int zlib_text_window_bits; /* holds zlib compression window bits */
- int zlib_text_mem_level; /* holds zlib compression memory level */
- int zlib_text_strategy; /* holds zlib compression strategy */
-#endif
-/* End of material added at libpng 1.5.4 */
-/* Added at libpng 1.6.0 */
-#ifdef PNG_WRITE_SUPPORTED
- int zlib_set_level; /* Actual values set into the zstream on write */
- int zlib_set_method;
- int zlib_set_window_bits;
- int zlib_set_mem_level;
- int zlib_set_strategy;
-#endif
-
- png_uint_32 width; /* width of image in pixels */
- png_uint_32 height; /* height of image in pixels */
- png_uint_32 num_rows; /* number of rows in current pass */
- png_uint_32 usr_width; /* width of row at start of write */
- size_t rowbytes; /* size of row in bytes */
- png_uint_32 iwidth; /* width of current interlaced row in pixels */
- png_uint_32 row_number; /* current row in interlace pass */
- png_uint_32 chunk_name; /* PNG_CHUNK() id of current chunk */
- png_bytep prev_row; /* buffer to save previous (unfiltered) row.
- * While reading this is a pointer into
- * big_prev_row; while writing it is separately
- * allocated if needed.
- */
- png_bytep row_buf; /* buffer to save current (unfiltered) row.
- * While reading, this is a pointer into
- * big_row_buf; while writing it is separately
- * allocated.
- */
-#ifdef PNG_WRITE_FILTER_SUPPORTED
- png_bytep try_row; /* buffer to save trial row when filtering */
- png_bytep tst_row; /* buffer to save best trial row when filtering */
-#endif
- size_t info_rowbytes; /* Added in 1.5.4: cache of updated row bytes */
-
- png_uint_32 idat_size; /* current IDAT size for read */
- png_uint_32 crc; /* current chunk CRC value */
- png_colorp palette; /* palette from the input file */
- png_uint_16 num_palette; /* number of color entries in palette */
-
-/* Added at libpng-1.5.10 */
-#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
- int num_palette_max; /* maximum palette index found in IDAT */
-#endif
-
- png_uint_16 num_trans; /* number of transparency values */
- png_byte compression; /* file compression type (always 0) */
- png_byte filter; /* file filter type (always 0) */
- png_byte interlaced; /* PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */
- png_byte pass; /* current interlace pass (0 - 6) */
- png_byte do_filter; /* row filter flags (see PNG_FILTER_ in png.h ) */
- png_byte color_type; /* color type of file */
- png_byte bit_depth; /* bit depth of file */
- png_byte usr_bit_depth; /* bit depth of users row: write only */
- png_byte pixel_depth; /* number of bits per pixel */
- png_byte channels; /* number of channels in file */
-#ifdef PNG_WRITE_SUPPORTED
- png_byte usr_channels; /* channels at start of write: write only */
-#endif
- png_byte sig_bytes; /* magic bytes read/written from start of file */
- png_byte maximum_pixel_depth;
- /* pixel depth used for the row buffers */
- png_byte transformed_pixel_depth;
- /* pixel depth after read/write transforms */
-#if ZLIB_VERNUM >= 0x1240
- png_byte zstream_start; /* at start of an input zlib stream */
-#endif /* Zlib >= 1.2.4 */
-#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED)
- png_uint_16 filler; /* filler bytes for pixel expansion */
-#endif
-
-#if defined(PNG_bKGD_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
- defined(PNG_READ_ALPHA_MODE_SUPPORTED)
- png_byte background_gamma_type;
- png_fixed_point background_gamma;
- png_color_16 background; /* background color in screen gamma space */
-#ifdef PNG_READ_GAMMA_SUPPORTED
- png_color_16 background_1; /* background normalized to gamma 1.0 */
-#endif
-#endif /* bKGD */
-
-#ifdef PNG_WRITE_FLUSH_SUPPORTED
- png_flush_ptr output_flush_fn; /* Function for flushing output */
- png_uint_32 flush_dist; /* how many rows apart to flush, 0 - no flush */
- png_uint_32 flush_rows; /* number of rows written since last flush */
-#endif
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
- int gamma_shift; /* number of "insignificant" bits in 16-bit gamma */
- png_fixed_point screen_gamma; /* screen gamma value (display_exponent) */
-
- png_bytep gamma_table; /* gamma table for 8-bit depth files */
- png_uint_16pp gamma_16_table; /* gamma table for 16-bit depth files */
-#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \
- defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \
- defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)
- png_bytep gamma_from_1; /* converts from 1.0 to screen */
- png_bytep gamma_to_1; /* converts from file to 1.0 */
- png_uint_16pp gamma_16_from_1; /* converts from 1.0 to screen */
- png_uint_16pp gamma_16_to_1; /* converts from file to 1.0 */
-#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */
-#endif
-
-#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_sBIT_SUPPORTED)
- png_color_8 sig_bit; /* significant bits in each available channel */
-#endif
-
-#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED)
- png_color_8 shift; /* shift for significant bit transformation */
-#endif
-
-#if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) \
- || defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
- png_bytep trans_alpha; /* alpha values for paletted files */
- png_color_16 trans_color; /* transparent color for non-paletted files */
-#endif
-
- png_read_status_ptr read_row_fn; /* called after each row is decoded */
- png_write_status_ptr write_row_fn; /* called after each row is encoded */
-#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
- png_progressive_info_ptr info_fn; /* called after header data fully read */
- png_progressive_row_ptr row_fn; /* called after a prog. row is decoded */
- png_progressive_end_ptr end_fn; /* called after image is complete */
- png_bytep save_buffer_ptr; /* current location in save_buffer */
- png_bytep save_buffer; /* buffer for previously read data */
- png_bytep current_buffer_ptr; /* current location in current_buffer */
- png_bytep current_buffer; /* buffer for recently used data */
- png_uint_32 push_length; /* size of current input chunk */
- png_uint_32 skip_length; /* bytes to skip in input data */
- size_t save_buffer_size; /* amount of data now in save_buffer */
- size_t save_buffer_max; /* total size of save_buffer */
- size_t buffer_size; /* total amount of available input data */
- size_t current_buffer_size; /* amount of data now in current_buffer */
- int process_mode; /* what push library is currently doing */
- int cur_palette; /* current push library palette index */
-
-#endif /* PROGRESSIVE_READ */
-
-#if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__)
-/* For the Borland special 64K segment handler */
- png_bytepp offset_table_ptr;
- png_bytep offset_table;
- png_uint_16 offset_table_number;
- png_uint_16 offset_table_count;
- png_uint_16 offset_table_count_free;
-#endif
-
-#ifdef PNG_READ_QUANTIZE_SUPPORTED
- png_bytep palette_lookup; /* lookup table for quantizing */
- png_bytep quantize_index; /* index translation for palette files */
-#endif
-
-/* Options */
-#ifdef PNG_SET_OPTION_SUPPORTED
- png_uint_32 options; /* On/off state (up to 16 options) */
-#endif
-
-#if PNG_LIBPNG_VER < 10700
-/* To do: remove this from libpng-1.7 */
-#ifdef PNG_TIME_RFC1123_SUPPORTED
- char time_buffer[29]; /* String to hold RFC 1123 time text */
-#endif
-#endif
-
-/* New members added in libpng-1.0.6 */
-
- png_uint_32 free_me; /* flags items libpng is responsible for freeing */
-
-#ifdef PNG_USER_CHUNKS_SUPPORTED
- png_voidp user_chunk_ptr;
-#ifdef PNG_READ_USER_CHUNKS_SUPPORTED
- png_user_chunk_ptr read_user_chunk_fn; /* user read chunk handler */
-#endif
-#endif
-
-#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
- int unknown_default; /* As PNG_HANDLE_* */
- unsigned int num_chunk_list; /* Number of entries in the list */
- png_bytep chunk_list; /* List of png_byte[5]; the textual chunk name
- * followed by a PNG_HANDLE_* byte */
-#endif
-
-/* New members added in libpng-1.0.3 */
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
- png_byte rgb_to_gray_status;
- /* Added in libpng 1.5.5 to record setting of coefficients: */
- png_byte rgb_to_gray_coefficients_set;
- /* These were changed from png_byte in libpng-1.0.6 */
- png_uint_16 rgb_to_gray_red_coeff;
- png_uint_16 rgb_to_gray_green_coeff;
- /* deleted in 1.5.5: rgb_to_gray_blue_coeff; */
-#endif
-
-/* New member added in libpng-1.6.36 */
-#if defined(PNG_READ_EXPAND_SUPPORTED) && \
- defined(PNG_ARM_NEON_IMPLEMENTATION)
- png_bytep riffled_palette; /* buffer for accelerated palette expansion */
-#endif
-
-/* New member added in libpng-1.0.4 (renamed in 1.0.9) */
-#if defined(PNG_MNG_FEATURES_SUPPORTED)
-/* Changed from png_byte to png_uint_32 at version 1.2.0 */
- png_uint_32 mng_features_permitted;
-#endif
-
-/* New member added in libpng-1.0.9, ifdef'ed out in 1.0.12, enabled in 1.2.0 */
-#ifdef PNG_MNG_FEATURES_SUPPORTED
- png_byte filter_type;
-#endif
-
-/* New members added in libpng-1.2.0 */
-
-/* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */
-#ifdef PNG_USER_MEM_SUPPORTED
- png_voidp mem_ptr; /* user supplied struct for mem functions */
- png_malloc_ptr malloc_fn; /* function for allocating memory */
- png_free_ptr free_fn; /* function for freeing memory */
-#endif
-
-/* New member added in libpng-1.0.13 and 1.2.0 */
- png_bytep big_row_buf; /* buffer to save current (unfiltered) row */
-
-#ifdef PNG_READ_QUANTIZE_SUPPORTED
-/* The following three members were added at version 1.0.14 and 1.2.4 */
- png_bytep quantize_sort; /* working sort array */
- png_bytep index_to_palette; /* where the original index currently is
- in the palette */
- png_bytep palette_to_index; /* which original index points to this
- palette color */
-#endif
-
-/* New members added in libpng-1.0.16 and 1.2.6 */
- png_byte compression_type;
-
-#ifdef PNG_USER_LIMITS_SUPPORTED
- png_uint_32 user_width_max;
- png_uint_32 user_height_max;
-
- /* Added in libpng-1.4.0: Total number of sPLT, text, and unknown
- * chunks that can be stored (0 means unlimited).
- */
- png_uint_32 user_chunk_cache_max;
-
- /* Total memory that a zTXt, sPLT, iTXt, iCCP, or unknown chunk
- * can occupy when decompressed. 0 means unlimited.
- */
- png_alloc_size_t user_chunk_malloc_max;
-#endif
-
-/* New member added in libpng-1.0.25 and 1.2.17 */
-#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
- /* Temporary storage for unknown chunk that the library doesn't recognize,
- * used while reading the chunk.
- */
- png_unknown_chunk unknown_chunk;
-#endif
-
-/* New member added in libpng-1.2.26 */
- size_t old_big_row_buf_size;
-
-#ifdef PNG_READ_SUPPORTED
-/* New member added in libpng-1.2.30 */
- png_bytep read_buffer; /* buffer for reading chunk data */
- png_alloc_size_t read_buffer_size; /* current size of the buffer */
-#endif
-#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
- uInt IDAT_read_size; /* limit on read buffer size for IDAT */
-#endif
-
-#ifdef PNG_IO_STATE_SUPPORTED
-/* New member added in libpng-1.4.0 */
- png_uint_32 io_state;
-#endif
-
-/* New member added in libpng-1.5.6 */
- png_bytep big_prev_row;
-
-/* New member added in libpng-1.5.7 */
- void (*read_filter[PNG_FILTER_VALUE_LAST-1])(png_row_infop row_info,
- png_bytep row, png_const_bytep prev_row);
-
-#ifdef PNG_READ_SUPPORTED
-#if defined(PNG_COLORSPACE_SUPPORTED) || defined(PNG_GAMMA_SUPPORTED)
- png_colorspace colorspace;
-#endif
-#endif
-};
-#endif /* PNGSTRUCT_H */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngtest b/3rdparty/libpng/libpng-1.6.37/pngtest
deleted file mode 100755
index f27ea52..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngtest
+++ /dev/null
@@ -1,210 +0,0 @@
-#! /bin/bash
-
-# pngtest - temporary wrapper script for .libs/pngtest
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# The pngtest program cannot be directly executed until all the libtool
-# libraries that it depends on are installed.
-#
-# This wrapper script should never be moved out of the build directory.
-# If it is, it will not operate correctly.
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
-
-# Be Bourne compatible
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
-else
- case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-relink_command=""
-
-# This environment variable determines our operation mode.
-if test "$libtool_install_magic" = "%%%MAGIC variable%%%"; then
- # install mode needs the following variables:
- generated_by_libtool_version='2.4.6'
- notinst_deplibs=' libpng16.la'
-else
- # When we are sourced in execute mode, $file and $ECHO are already set.
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- file="$0"
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
- eval 'cat <<_LTECHO_EOF
-$1
-_LTECHO_EOF'
-}
- ECHO="printf %s\\n"
- fi
-
-# Very basic option parsing. These options are (a) specific to
-# the libtool wrapper, (b) are identical between the wrapper
-# /script/ and the wrapper /executable/ that is used only on
-# windows platforms, and (c) all begin with the string --lt-
-# (application programs are unlikely to have options that match
-# this pattern).
-#
-# There are only two supported options: --lt-debug and
-# --lt-dump-script. There is, deliberately, no --lt-help.
-#
-# The first argument to this parsing function should be the
-# script's ./libtool value, followed by no.
-lt_option_debug=
-func_parse_lt_options ()
-{
- lt_script_arg0=$0
- shift
- for lt_opt
- do
- case "$lt_opt" in
- --lt-debug) lt_option_debug=1 ;;
- --lt-dump-script)
- lt_dump_D=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%/[^/]*$%%'`
- test "X$lt_dump_D" = "X$lt_script_arg0" && lt_dump_D=.
- lt_dump_F=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%^.*/%%'`
- cat "$lt_dump_D/$lt_dump_F"
- exit 0
- ;;
- --lt-*)
- $ECHO "Unrecognized --lt- option: '$lt_opt'" 1>&2
- exit 1
- ;;
- esac
- done
-
- # Print the debug banner immediately:
- if test -n "$lt_option_debug"; then
- echo "pngtest:pngtest:$LINENO: libtool wrapper (GNU libtool) 2.4.6" 1>&2
- fi
-}
-
-# Used when --lt-debug. Prints its arguments to stdout
-# (redirection is the responsibility of the caller)
-func_lt_dump_args ()
-{
- lt_dump_args_N=1;
- for lt_arg
- do
- $ECHO "pngtest:pngtest:$LINENO: newargv[$lt_dump_args_N]: $lt_arg"
- lt_dump_args_N=`expr $lt_dump_args_N + 1`
- done
-}
-
-# Core function for launching the target application
-func_exec_program_core ()
-{
-
- if test -n "$lt_option_debug"; then
- $ECHO "pngtest:pngtest:$LINENO: newargv[0]: $progdir/$program" 1>&2
- func_lt_dump_args ${1+"$@"} 1>&2
- fi
- exec "$progdir/$program" ${1+"$@"}
-
- $ECHO "$0: cannot exec $program $*" 1>&2
- exit 1
-}
-
-# A function to encapsulate launching the target application
-# Strips options in the --lt-* namespace from $@ and
-# launches target application with the remaining arguments.
-func_exec_program ()
-{
- case " $* " in
- *\ --lt-*)
- for lt_wr_arg
- do
- case $lt_wr_arg in
- --lt-*) ;;
- *) set x "$@" "$lt_wr_arg"; shift;;
- esac
- shift
- done ;;
- esac
- func_exec_program_core ${1+"$@"}
-}
-
- # Parse options
- func_parse_lt_options "$0" ${1+"$@"}
-
- # Find the directory that this script lives in.
- thisdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
- test "x$thisdir" = "x$file" && thisdir=.
-
- # Follow symbolic links until we get to the real thisdir.
- file=`ls -ld "$file" | /bin/sed -n 's/.*-> //p'`
- while test -n "$file"; do
- destdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
-
- # If there was a directory component, then change thisdir.
- if test "x$destdir" != "x$file"; then
- case "$destdir" in
- [\\/]* | [A-Za-z]:[\\/]*) thisdir="$destdir" ;;
- *) thisdir="$thisdir/$destdir" ;;
- esac
- fi
-
- file=`$ECHO "$file" | /bin/sed 's%^.*/%%'`
- file=`ls -ld "$thisdir/$file" | /bin/sed -n 's/.*-> //p'`
- done
-
- # Usually 'no', except on cygwin/mingw when embedded into
- # the cwrapper.
- WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=no
- if test "$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR" = "yes"; then
- # special case for '.'
- if test "$thisdir" = "."; then
- thisdir=`pwd`
- fi
- # remove .libs from thisdir
- case "$thisdir" in
- *[\\/].libs ) thisdir=`$ECHO "$thisdir" | /bin/sed 's%[\\/][^\\/]*$%%'` ;;
- .libs ) thisdir=. ;;
- esac
- fi
-
- # Try to get the absolute directory name.
- absdir=`cd "$thisdir" && pwd`
- test -n "$absdir" && thisdir="$absdir"
-
- program='pngtest'
- progdir="$thisdir/.libs"
-
-
- if test -f "$progdir/$program"; then
- # Add our own library path to LD_LIBRARY_PATH
- LD_LIBRARY_PATH="/home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/.libs:$LD_LIBRARY_PATH"
-
- # Some systems cannot cope with colon-terminated LD_LIBRARY_PATH
- # The second colon is a workaround for a bug in BeOS R4 sed
- LD_LIBRARY_PATH=`$ECHO "$LD_LIBRARY_PATH" | /bin/sed 's/::*$//'`
-
- export LD_LIBRARY_PATH
-
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- # Run the actual program with our arguments.
- func_exec_program ${1+"$@"}
- fi
- else
- # The program doesn't exist.
- $ECHO "$0: error: '$progdir/$program' does not exist" 1>&2
- $ECHO "This script is just a wrapper for $program." 1>&2
- $ECHO "See the libtool documentation for more information." 1>&2
- exit 1
- fi
-fi
diff --git a/3rdparty/libpng/libpng-1.6.37/pngtest.c b/3rdparty/libpng/libpng-1.6.37/pngtest.c
deleted file mode 100644
index a715ae1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngtest.c
+++ /dev/null
@@ -1,2158 +0,0 @@
-
-/* pngtest.c - a simple test program to test libpng
- *
- * Copyright (c) 2018-2019 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * This program reads in a PNG image, writes it out again, and then
- * compares the two files. If the files are identical, this shows that
- * the basic chunk handling, filtering, and (de)compression code is working
- * properly. It does not currently test all of the transforms, although
- * it probably should.
- *
- * The program will report "FAIL" in certain legitimate cases:
- * 1) when the compression level or filter selection method is changed.
- * 2) when the maximum IDAT size (PNG_ZBUF_SIZE in pngconf.h) is not 8192.
- * 3) unknown unsafe-to-copy ancillary chunks or unknown critical chunks
- * exist in the input file.
- * 4) others not listed here...
- * In these cases, it is best to check with another tool such as "pngcheck"
- * to see what the differences between the two files are.
- *
- * If a filename is given on the command-line, then this file is used
- * for the input, rather than the default "pngtest.png". This allows
- * testing a wide variety of files easily. You can also test a number
- * of files at once by typing "pngtest -m file1.png file2.png ..."
- */
-
-#define _POSIX_SOURCE 1
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-/* Defined so I can write to a file on gui/windowing platforms */
-/* #define STDERR stderr */
-#define STDERR stdout /* For DOS */
-
-#include "png.h"
-
-/* Known chunks that exist in pngtest.png must be supported or pngtest will fail
- * simply as a result of re-ordering them. This may be fixed in 1.7
- *
- * pngtest allocates a single row buffer for each row and overwrites it,
- * therefore if the write side doesn't support the writing of interlaced images
- * nothing can be done for an interlaced image (and the code below will fail
- * horribly trying to write extra data after writing garbage).
- */
-#if defined PNG_READ_SUPPORTED && /* else nothing can be done */\
- defined PNG_READ_bKGD_SUPPORTED &&\
- defined PNG_READ_cHRM_SUPPORTED &&\
- defined PNG_READ_gAMA_SUPPORTED &&\
- defined PNG_READ_oFFs_SUPPORTED &&\
- defined PNG_READ_pCAL_SUPPORTED &&\
- defined PNG_READ_pHYs_SUPPORTED &&\
- defined PNG_READ_sBIT_SUPPORTED &&\
- defined PNG_READ_sCAL_SUPPORTED &&\
- defined PNG_READ_sRGB_SUPPORTED &&\
- defined PNG_READ_sPLT_SUPPORTED &&\
- defined PNG_READ_tEXt_SUPPORTED &&\
- defined PNG_READ_tIME_SUPPORTED &&\
- defined PNG_READ_zTXt_SUPPORTED &&\
- (defined PNG_WRITE_INTERLACING_SUPPORTED || PNG_LIBPNG_VER >= 10700)
-
-#ifdef PNG_ZLIB_HEADER
-# include PNG_ZLIB_HEADER /* defined by pnglibconf.h from 1.7 */
-#else
-# include "zlib.h"
-#endif
-
-/* Copied from pngpriv.h but only used in error messages below. */
-#ifndef PNG_ZBUF_SIZE
-# define PNG_ZBUF_SIZE 8192
-#endif
-#define FCLOSE(file) fclose(file)
-
-#ifndef PNG_STDIO_SUPPORTED
-typedef FILE * png_FILE_p;
-#endif
-
-/* Makes pngtest verbose so we can find problems. */
-#ifndef PNG_DEBUG
-# define PNG_DEBUG 0
-#endif
-
-#if PNG_DEBUG > 1
-# define pngtest_debug(m) ((void)fprintf(stderr, m "\n"))
-# define pngtest_debug1(m,p1) ((void)fprintf(stderr, m "\n", p1))
-# define pngtest_debug2(m,p1,p2) ((void)fprintf(stderr, m "\n", p1, p2))
-#else
-# define pngtest_debug(m) ((void)0)
-# define pngtest_debug1(m,p1) ((void)0)
-# define pngtest_debug2(m,p1,p2) ((void)0)
-#endif
-
-#if !PNG_DEBUG
-# define SINGLE_ROWBUF_ALLOC /* Makes buffer overruns easier to nail */
-#endif
-
-#ifndef PNG_UNUSED
-# define PNG_UNUSED(param) (void)param;
-#endif
-
-/* Turn on CPU timing
-#define PNGTEST_TIMING
-*/
-
-#ifndef PNG_FLOATING_POINT_SUPPORTED
-#undef PNGTEST_TIMING
-#endif
-
-#ifdef PNGTEST_TIMING
-static float t_start, t_stop, t_decode, t_encode, t_misc;
-#include <time.h>
-#endif
-
-#ifdef PNG_TIME_RFC1123_SUPPORTED
-#define PNG_tIME_STRING_LENGTH 29
-static int tIME_chunk_present = 0;
-static char tIME_string[PNG_tIME_STRING_LENGTH] = "tIME chunk is not present";
-
-#if PNG_LIBPNG_VER < 10619
-#define png_convert_to_rfc1123_buffer(ts, t) tIME_to_str(read_ptr, ts, t)
-
-static int
-tIME_to_str(png_structp png_ptr, png_charp ts, png_const_timep t)
-{
- png_const_charp str = png_convert_to_rfc1123(png_ptr, t);
-
- if (str == NULL)
- return 0;
-
- strcpy(ts, str);
- return 1;
-}
-#endif /* older libpng */
-#endif
-
-static int verbose = 0;
-static int strict = 0;
-static int relaxed = 0;
-static int xfail = 0;
-static int unsupported_chunks = 0; /* chunk unsupported by libpng in input */
-static int error_count = 0; /* count calls to png_error */
-static int warning_count = 0; /* count calls to png_warning */
-
-/* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */
-#ifndef png_jmpbuf
-# define png_jmpbuf(png_ptr) png_ptr->jmpbuf
-#endif
-
-/* Defines for unknown chunk handling if required. */
-#ifndef PNG_HANDLE_CHUNK_ALWAYS
-# define PNG_HANDLE_CHUNK_ALWAYS 3
-#endif
-#ifndef PNG_HANDLE_CHUNK_IF_SAFE
-# define PNG_HANDLE_CHUNK_IF_SAFE 2
-#endif
-
-/* Utility to save typing/errors, the argument must be a name */
-#define MEMZERO(var) ((void)memset(&var, 0, sizeof var))
-
-/* Example of using row callbacks to make a simple progress meter */
-static int status_pass = 1;
-static int status_dots_requested = 0;
-static int status_dots = 1;
-
-static void PNGCBAPI
-read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
-{
- if (png_ptr == NULL || row_number > PNG_UINT_31_MAX)
- return;
-
- if (status_pass != pass)
- {
- fprintf(stdout, "\n Pass %d: ", pass);
- status_pass = pass;
- status_dots = 31;
- }
-
- status_dots--;
-
- if (status_dots == 0)
- {
- fprintf(stdout, "\n ");
- status_dots=30;
- }
-
- fprintf(stdout, "r");
-}
-
-#ifdef PNG_WRITE_SUPPORTED
-static void PNGCBAPI
-write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
-{
- if (png_ptr == NULL || row_number > PNG_UINT_31_MAX || pass > 7)
- return;
-
- fprintf(stdout, "w");
-}
-#endif
-
-
-#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
-/* Example of using a user transform callback (doesn't do anything at present).
- */
-static void PNGCBAPI
-read_user_callback(png_structp png_ptr, png_row_infop row_info, png_bytep data)
-{
- PNG_UNUSED(png_ptr)
- PNG_UNUSED(row_info)
- PNG_UNUSED(data)
-}
-#endif
-
-#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
-/* Example of using user transform callback (we don't transform anything,
- * but merely count the zero samples)
- */
-
-static png_uint_32 zero_samples;
-
-static void PNGCBAPI
-count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data)
-{
- png_bytep dp = data;
- if (png_ptr == NULL)
- return;
-
- /* Contents of row_info:
- * png_uint_32 width width of row
- * png_uint_32 rowbytes number of bytes in row
- * png_byte color_type color type of pixels
- * png_byte bit_depth bit depth of samples
- * png_byte channels number of channels (1-4)
- * png_byte pixel_depth bits per pixel (depth*channels)
- */
-
- /* Counts the number of zero samples (or zero pixels if color_type is 3 */
-
- if (row_info->color_type == 0 || row_info->color_type == 3)
- {
- int pos = 0;
- png_uint_32 n, nstop;
-
- for (n = 0, nstop=row_info->width; n<nstop; n++)
- {
- if (row_info->bit_depth == 1)
- {
- if (((*dp << pos++ ) & 0x80) == 0)
- zero_samples++;
-
- if (pos == 8)
- {
- pos = 0;
- dp++;
- }
- }
-
- if (row_info->bit_depth == 2)
- {
- if (((*dp << (pos+=2)) & 0xc0) == 0)
- zero_samples++;
-
- if (pos == 8)
- {
- pos = 0;
- dp++;
- }
- }
-
- if (row_info->bit_depth == 4)
- {
- if (((*dp << (pos+=4)) & 0xf0) == 0)
- zero_samples++;
-
- if (pos == 8)
- {
- pos = 0;
- dp++;
- }
- }
-
- if (row_info->bit_depth == 8)
- if (*dp++ == 0)
- zero_samples++;
-
- if (row_info->bit_depth == 16)
- {
- if ((*dp | *(dp+1)) == 0)
- zero_samples++;
- dp+=2;
- }
- }
- }
- else /* Other color types */
- {
- png_uint_32 n, nstop;
- int channel;
- int color_channels = row_info->channels;
- if (row_info->color_type > 3)
- color_channels--;
-
- for (n = 0, nstop=row_info->width; n<nstop; n++)
- {
- for (channel = 0; channel < color_channels; channel++)
- {
- if (row_info->bit_depth == 8)
- if (*dp++ == 0)
- zero_samples++;
-
- if (row_info->bit_depth == 16)
- {
- if ((*dp | *(dp+1)) == 0)
- zero_samples++;
-
- dp+=2;
- }
- }
- if (row_info->color_type > 3)
- {
- dp++;
- if (row_info->bit_depth == 16)
- dp++;
- }
- }
- }
-}
-#endif /* WRITE_USER_TRANSFORM */
-
-#ifndef PNG_STDIO_SUPPORTED
-/* START of code to validate stdio-free compilation */
-/* These copies of the default read/write functions come from pngrio.c and
- * pngwio.c. They allow "don't include stdio" testing of the library.
- * This is the function that does the actual reading of data. If you are
- * not reading from a standard C stream, you should create a replacement
- * read_data function and use it at run time with png_set_read_fn(), rather
- * than changing the library.
- */
-
-#ifdef PNG_IO_STATE_SUPPORTED
-void
-pngtest_check_io_state(png_structp png_ptr, size_t data_length,
- png_uint_32 io_op);
-void
-pngtest_check_io_state(png_structp png_ptr, size_t data_length,
- png_uint_32 io_op)
-{
- png_uint_32 io_state = png_get_io_state(png_ptr);
- int err = 0;
-
- /* Check if the current operation (reading / writing) is as expected. */
- if ((io_state & PNG_IO_MASK_OP) != io_op)
- png_error(png_ptr, "Incorrect operation in I/O state");
-
- /* Check if the buffer size specific to the current location
- * (file signature / header / data / crc) is as expected.
- */
- switch (io_state & PNG_IO_MASK_LOC)
- {
- case PNG_IO_SIGNATURE:
- if (data_length > 8)
- err = 1;
- break;
- case PNG_IO_CHUNK_HDR:
- if (data_length != 8)
- err = 1;
- break;
- case PNG_IO_CHUNK_DATA:
- break; /* no restrictions here */
- case PNG_IO_CHUNK_CRC:
- if (data_length != 4)
- err = 1;
- break;
- default:
- err = 1; /* uninitialized */
- }
- if (err != 0)
- png_error(png_ptr, "Bad I/O state or buffer size");
-}
-#endif
-
-static void PNGCBAPI
-pngtest_read_data(png_structp png_ptr, png_bytep data, size_t length)
-{
- size_t check = 0;
- png_voidp io_ptr;
-
- /* fread() returns 0 on error, so it is OK to store this in a size_t
- * instead of an int, which is what fread() actually returns.
- */
- io_ptr = png_get_io_ptr(png_ptr);
- if (io_ptr != NULL)
- {
- check = fread(data, 1, length, (png_FILE_p)io_ptr);
- }
-
- if (check != length)
- {
- png_error(png_ptr, "Read Error");
- }
-
-#ifdef PNG_IO_STATE_SUPPORTED
- pngtest_check_io_state(png_ptr, length, PNG_IO_READING);
-#endif
-}
-
-#ifdef PNG_WRITE_FLUSH_SUPPORTED
-static void PNGCBAPI
-pngtest_flush(png_structp png_ptr)
-{
- /* Do nothing; fflush() is said to be just a waste of energy. */
- PNG_UNUSED(png_ptr) /* Stifle compiler warning */
-}
-#endif
-
-/* This is the function that does the actual writing of data. If you are
- * not writing to a standard C stream, you should create a replacement
- * write_data function and use it at run time with png_set_write_fn(), rather
- * than changing the library.
- */
-static void PNGCBAPI
-pngtest_write_data(png_structp png_ptr, png_bytep data, size_t length)
-{
- size_t check;
-
- check = fwrite(data, 1, length, (png_FILE_p)png_get_io_ptr(png_ptr));
-
- if (check != length)
- {
- png_error(png_ptr, "Write Error");
- }
-
-#ifdef PNG_IO_STATE_SUPPORTED
- pngtest_check_io_state(png_ptr, length, PNG_IO_WRITING);
-#endif
-}
-#endif /* !STDIO */
-
-/* This function is called when there is a warning, but the library thinks
- * it can continue anyway. Replacement functions don't have to do anything
- * here if you don't want to. In the default configuration, png_ptr is
- * not used, but it is passed in case it may be useful.
- */
-typedef struct
-{
- const char *file_name;
-} pngtest_error_parameters;
-
-static void PNGCBAPI
-pngtest_warning(png_structp png_ptr, png_const_charp message)
-{
- const char *name = "UNKNOWN (ERROR!)";
- pngtest_error_parameters *test =
- (pngtest_error_parameters*)png_get_error_ptr(png_ptr);
-
- ++warning_count;
-
- if (test != NULL && test->file_name != NULL)
- name = test->file_name;
-
- fprintf(STDERR, "\n%s: libpng warning: %s\n", name, message);
-}
-
-/* This is the default error handling function. Note that replacements for
- * this function MUST NOT RETURN, or the program will likely crash. This
- * function is used by default, or if the program supplies NULL for the
- * error function pointer in png_set_error_fn().
- */
-static void PNGCBAPI
-pngtest_error(png_structp png_ptr, png_const_charp message)
-{
- ++error_count;
-
- pngtest_warning(png_ptr, message);
- /* We can return because png_error calls the default handler, which is
- * actually OK in this case.
- */
-}
-
-/* END of code to validate stdio-free compilation */
-
-/* START of code to validate memory allocation and deallocation */
-#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
-
-/* Allocate memory. For reasonable files, size should never exceed
- * 64K. However, zlib may allocate more than 64K if you don't tell
- * it not to. See zconf.h and png.h for more information. zlib does
- * need to allocate exactly 64K, so whatever you call here must
- * have the ability to do that.
- *
- * This piece of code can be compiled to validate max 64K allocations
- * by setting MAXSEG_64K in zlib zconf.h *or* PNG_MAX_MALLOC_64K.
- */
-typedef struct memory_information
-{
- png_alloc_size_t size;
- png_voidp pointer;
- struct memory_information *next;
-} memory_information;
-typedef memory_information *memory_infop;
-
-static memory_infop pinformation = NULL;
-static int current_allocation = 0;
-static int maximum_allocation = 0;
-static int total_allocation = 0;
-static int num_allocations = 0;
-
-png_voidp PNGCBAPI png_debug_malloc PNGARG((png_structp png_ptr,
- png_alloc_size_t size));
-void PNGCBAPI png_debug_free PNGARG((png_structp png_ptr, png_voidp ptr));
-
-png_voidp
-PNGCBAPI png_debug_malloc(png_structp png_ptr, png_alloc_size_t size)
-{
-
- /* png_malloc has already tested for NULL; png_create_struct calls
- * png_debug_malloc directly, with png_ptr == NULL which is OK
- */
-
- if (size == 0)
- return (NULL);
-
- /* This calls the library allocator twice, once to get the requested
- buffer and once to get a new free list entry. */
- {
- /* Disable malloc_fn and free_fn */
- memory_infop pinfo;
- png_set_mem_fn(png_ptr, NULL, NULL, NULL);
- pinfo = (memory_infop)png_malloc(png_ptr,
- (sizeof *pinfo));
- pinfo->size = size;
- current_allocation += size;
- total_allocation += size;
- num_allocations ++;
-
- if (current_allocation > maximum_allocation)
- maximum_allocation = current_allocation;
-
- pinfo->pointer = png_malloc(png_ptr, size);
- /* Restore malloc_fn and free_fn */
-
- png_set_mem_fn(png_ptr,
- NULL, png_debug_malloc, png_debug_free);
-
- if (size != 0 && pinfo->pointer == NULL)
- {
- current_allocation -= size;
- total_allocation -= size;
- png_error(png_ptr,
- "out of memory in pngtest->png_debug_malloc");
- }
-
- pinfo->next = pinformation;
- pinformation = pinfo;
- /* Make sure the caller isn't assuming zeroed memory. */
- memset(pinfo->pointer, 0xdd, pinfo->size);
-
- if (verbose != 0)
- printf("png_malloc %lu bytes at %p\n", (unsigned long)size,
- pinfo->pointer);
-
- return (png_voidp)(pinfo->pointer);
- }
-}
-
-/* Free a pointer. It is removed from the list at the same time. */
-void PNGCBAPI
-png_debug_free(png_structp png_ptr, png_voidp ptr)
-{
- if (png_ptr == NULL)
- fprintf(STDERR, "NULL pointer to png_debug_free.\n");
-
- if (ptr == 0)
- {
-#if 0 /* This happens all the time. */
- fprintf(STDERR, "WARNING: freeing NULL pointer\n");
-#endif
- return;
- }
-
- /* Unlink the element from the list. */
- if (pinformation != NULL)
- {
- memory_infop *ppinfo = &pinformation;
-
- for (;;)
- {
- memory_infop pinfo = *ppinfo;
-
- if (pinfo->pointer == ptr)
- {
- *ppinfo = pinfo->next;
- current_allocation -= pinfo->size;
- if (current_allocation < 0)
- fprintf(STDERR, "Duplicate free of memory\n");
- /* We must free the list element too, but first kill
- the memory that is to be freed. */
- memset(ptr, 0x55, pinfo->size);
- free(pinfo);
- pinfo = NULL;
- break;
- }
-
- if (pinfo->next == NULL)
- {
- fprintf(STDERR, "Pointer %p not found\n", ptr);
- break;
- }
-
- ppinfo = &pinfo->next;
- }
- }
-
- /* Finally free the data. */
- if (verbose != 0)
- printf("Freeing %p\n", ptr);
-
- if (ptr != NULL)
- free(ptr);
- ptr = NULL;
-}
-#endif /* USER_MEM && DEBUG */
-/* END of code to test memory allocation/deallocation */
-
-
-#ifdef PNG_READ_USER_CHUNKS_SUPPORTED
-/* Demonstration of user chunk support of the sTER and vpAg chunks */
-
-/* (sTER is a public chunk not yet known by libpng. vpAg is a private
-chunk used in ImageMagick to store "virtual page" size). */
-
-static struct user_chunk_data
-{
- png_const_infop info_ptr;
- png_uint_32 vpAg_width, vpAg_height;
- png_byte vpAg_units;
- png_byte sTER_mode;
- int location[2];
-}
-user_chunk_data;
-
-/* Used for location and order; zero means nothing. */
-#define have_sTER 0x01
-#define have_vpAg 0x02
-#define before_PLTE 0x10
-#define before_IDAT 0x20
-#define after_IDAT 0x40
-
-static void
-init_callback_info(png_const_infop info_ptr)
-{
- MEMZERO(user_chunk_data);
- user_chunk_data.info_ptr = info_ptr;
-}
-
-static int
-set_location(png_structp png_ptr, struct user_chunk_data *data, int what)
-{
- int location;
-
- if ((data->location[0] & what) != 0 || (data->location[1] & what) != 0)
- return 0; /* already have one of these */
-
- /* Find where we are (the code below zeroes info_ptr to indicate that the
- * chunks before the first IDAT have been read.)
- */
- if (data->info_ptr == NULL) /* after IDAT */
- location = what | after_IDAT;
-
- else if (png_get_valid(png_ptr, data->info_ptr, PNG_INFO_PLTE) != 0)
- location = what | before_IDAT;
-
- else
- location = what | before_PLTE;
-
- if (data->location[0] == 0)
- data->location[0] = location;
-
- else
- data->location[1] = location;
-
- return 1; /* handled */
-}
-
-static int PNGCBAPI
-read_user_chunk_callback(png_struct *png_ptr, png_unknown_chunkp chunk)
-{
- struct user_chunk_data *my_user_chunk_data =
- (struct user_chunk_data*)png_get_user_chunk_ptr(png_ptr);
-
- if (my_user_chunk_data == NULL)
- png_error(png_ptr, "lost user chunk pointer");
-
- /* Return one of the following:
- * return (-n); chunk had an error
- * return (0); did not recognize
- * return (n); success
- *
- * The unknown chunk structure contains the chunk data:
- * png_byte name[5];
- * png_byte *data;
- * size_t size;
- *
- * Note that libpng has already taken care of the CRC handling.
- */
-
- if (chunk->name[0] == 115 && chunk->name[1] == 84 && /* s T */
- chunk->name[2] == 69 && chunk->name[3] == 82) /* E R */
- {
- /* Found sTER chunk */
- if (chunk->size != 1)
- return (-1); /* Error return */
-
- if (chunk->data[0] != 0 && chunk->data[0] != 1)
- return (-1); /* Invalid mode */
-
- if (set_location(png_ptr, my_user_chunk_data, have_sTER) != 0)
- {
- my_user_chunk_data->sTER_mode=chunk->data[0];
- return (1);
- }
-
- else
- return (0); /* duplicate sTER - give it to libpng */
- }
-
- if (chunk->name[0] != 118 || chunk->name[1] != 112 || /* v p */
- chunk->name[2] != 65 || chunk->name[3] != 103) /* A g */
- return (0); /* Did not recognize */
-
- /* Found ImageMagick vpAg chunk */
-
- if (chunk->size != 9)
- return (-1); /* Error return */
-
- if (set_location(png_ptr, my_user_chunk_data, have_vpAg) == 0)
- return (0); /* duplicate vpAg */
-
- my_user_chunk_data->vpAg_width = png_get_uint_31(png_ptr, chunk->data);
- my_user_chunk_data->vpAg_height = png_get_uint_31(png_ptr, chunk->data + 4);
- my_user_chunk_data->vpAg_units = chunk->data[8];
-
- return (1);
-}
-
-#ifdef PNG_WRITE_SUPPORTED
-static void
-write_sTER_chunk(png_structp write_ptr)
-{
- png_byte sTER[5] = {115, 84, 69, 82, '\0'};
-
- if (verbose != 0)
- fprintf(STDERR, "\n stereo mode = %d\n", user_chunk_data.sTER_mode);
-
- png_write_chunk(write_ptr, sTER, &user_chunk_data.sTER_mode, 1);
-}
-
-static void
-write_vpAg_chunk(png_structp write_ptr)
-{
- png_byte vpAg[5] = {118, 112, 65, 103, '\0'};
-
- png_byte vpag_chunk_data[9];
-
- if (verbose != 0)
- fprintf(STDERR, " vpAg = %lu x %lu, units = %d\n",
- (unsigned long)user_chunk_data.vpAg_width,
- (unsigned long)user_chunk_data.vpAg_height,
- user_chunk_data.vpAg_units);
-
- png_save_uint_32(vpag_chunk_data, user_chunk_data.vpAg_width);
- png_save_uint_32(vpag_chunk_data + 4, user_chunk_data.vpAg_height);
- vpag_chunk_data[8] = user_chunk_data.vpAg_units;
- png_write_chunk(write_ptr, vpAg, vpag_chunk_data, 9);
-}
-
-static void
-write_chunks(png_structp write_ptr, int location)
-{
- int i;
-
- /* Notice that this preserves the original chunk order, however chunks
- * intercepted by the callback will be written *after* chunks passed to
- * libpng. This will actually reverse a pair of sTER chunks or a pair of
- * vpAg chunks, resulting in an error later. This is not worth worrying
- * about - the chunks should not be duplicated!
- */
- for (i=0; i<2; ++i)
- {
- if (user_chunk_data.location[i] == (location | have_sTER))
- write_sTER_chunk(write_ptr);
-
- else if (user_chunk_data.location[i] == (location | have_vpAg))
- write_vpAg_chunk(write_ptr);
- }
-}
-#endif /* WRITE */
-#else /* !READ_USER_CHUNKS */
-# define write_chunks(pp,loc) ((void)0)
-#endif
-/* END of code to demonstrate user chunk support */
-
-/* START of code to check that libpng has the required text support; this only
- * checks for the write support because if read support is missing the chunk
- * will simply not be reported back to pngtest.
- */
-#ifdef PNG_TEXT_SUPPORTED
-static void
-pngtest_check_text_support(png_structp png_ptr, png_textp text_ptr,
- int num_text)
-{
- while (num_text > 0)
- {
- switch (text_ptr[--num_text].compression)
- {
- case PNG_TEXT_COMPRESSION_NONE:
- break;
-
- case PNG_TEXT_COMPRESSION_zTXt:
-# ifndef PNG_WRITE_zTXt_SUPPORTED
- ++unsupported_chunks;
- /* In libpng 1.7 this now does an app-error, so stop it: */
- text_ptr[num_text].compression = PNG_TEXT_COMPRESSION_NONE;
-# endif
- break;
-
- case PNG_ITXT_COMPRESSION_NONE:
- case PNG_ITXT_COMPRESSION_zTXt:
-# ifndef PNG_WRITE_iTXt_SUPPORTED
- ++unsupported_chunks;
- text_ptr[num_text].compression = PNG_TEXT_COMPRESSION_NONE;
-# endif
- break;
-
- default:
- /* This is an error */
- png_error(png_ptr, "invalid text chunk compression field");
- break;
- }
- }
-}
-#endif
-/* END of code to check that libpng has the required text support */
-
-/* Test one file */
-static int
-test_one_file(const char *inname, const char *outname)
-{
- static png_FILE_p fpin;
- static png_FILE_p fpout; /* "static" prevents setjmp corruption */
- pngtest_error_parameters error_parameters;
- png_structp read_ptr;
- png_infop read_info_ptr, end_info_ptr;
-#ifdef PNG_WRITE_SUPPORTED
- png_structp write_ptr;
- png_infop write_info_ptr;
- png_infop write_end_info_ptr;
-#ifdef PNG_WRITE_FILTER_SUPPORTED
- int interlace_preserved = 1;
-#endif /* WRITE_FILTER */
-#else /* !WRITE */
- png_structp write_ptr = NULL;
- png_infop write_info_ptr = NULL;
- png_infop write_end_info_ptr = NULL;
-#endif /* !WRITE */
- png_bytep row_buf;
- png_uint_32 y;
- png_uint_32 width, height;
- volatile int num_passes;
- int pass;
- int bit_depth, color_type;
-
- row_buf = NULL;
- error_parameters.file_name = inname;
-
- if ((fpin = fopen(inname, "rb")) == NULL)
- {
- fprintf(STDERR, "Could not find input file %s\n", inname);
- return (1);
- }
-
- if ((fpout = fopen(outname, "wb")) == NULL)
- {
- fprintf(STDERR, "Could not open output file %s\n", outname);
- FCLOSE(fpin);
- return (1);
- }
-
- pngtest_debug("Allocating read and write structures");
-#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
- read_ptr =
- png_create_read_struct_2(PNG_LIBPNG_VER_STRING, NULL,
- NULL, NULL, NULL, png_debug_malloc, png_debug_free);
-#else
- read_ptr =
- png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
-#endif
- png_set_error_fn(read_ptr, &error_parameters, pngtest_error,
- pngtest_warning);
-
-#ifdef PNG_WRITE_SUPPORTED
-#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
- write_ptr =
- png_create_write_struct_2(PNG_LIBPNG_VER_STRING, NULL,
- NULL, NULL, NULL, png_debug_malloc, png_debug_free);
-#else
- write_ptr =
- png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
-#endif
- png_set_error_fn(write_ptr, &error_parameters, pngtest_error,
- pngtest_warning);
-#endif
- pngtest_debug("Allocating read_info, write_info and end_info structures");
- read_info_ptr = png_create_info_struct(read_ptr);
- end_info_ptr = png_create_info_struct(read_ptr);
-#ifdef PNG_WRITE_SUPPORTED
- write_info_ptr = png_create_info_struct(write_ptr);
- write_end_info_ptr = png_create_info_struct(write_ptr);
-#endif
-
-#ifdef PNG_READ_USER_CHUNKS_SUPPORTED
- init_callback_info(read_info_ptr);
- png_set_read_user_chunk_fn(read_ptr, &user_chunk_data,
- read_user_chunk_callback);
-#endif
-
-#ifdef PNG_SETJMP_SUPPORTED
- pngtest_debug("Setting jmpbuf for read struct");
- if (setjmp(png_jmpbuf(read_ptr)))
- {
- fprintf(STDERR, "%s -> %s: libpng read error\n", inname, outname);
- png_free(read_ptr, row_buf);
- row_buf = NULL;
- if (verbose != 0)
- fprintf(STDERR, " destroy read structs\n");
- png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);
-#ifdef PNG_WRITE_SUPPORTED
- if (verbose != 0)
- fprintf(STDERR, " destroy write structs\n");
- png_destroy_info_struct(write_ptr, &write_end_info_ptr);
- png_destroy_write_struct(&write_ptr, &write_info_ptr);
-#endif
- FCLOSE(fpin);
- FCLOSE(fpout);
- return (1);
- }
-
-#ifdef PNG_WRITE_SUPPORTED
- pngtest_debug("Setting jmpbuf for write struct");
-
- if (setjmp(png_jmpbuf(write_ptr)))
- {
- fprintf(STDERR, "%s -> %s: libpng write error\n", inname, outname);
- png_free(read_ptr, row_buf);
- row_buf = NULL;
- if (verbose != 0)
- fprintf(STDERR, " destroying read structs\n");
- png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);
- if (verbose != 0)
- fprintf(STDERR, " destroying write structs\n");
- png_destroy_info_struct(write_ptr, &write_end_info_ptr);
- png_destroy_write_struct(&write_ptr, &write_info_ptr);
- FCLOSE(fpin);
- FCLOSE(fpout);
- return (1);
- }
-#endif
-#endif
-
-#ifdef PNG_BENIGN_ERRORS_SUPPORTED
- if (strict != 0)
- {
- /* Treat png_benign_error() as errors on read */
- png_set_benign_errors(read_ptr, 0);
-
-# ifdef PNG_WRITE_SUPPORTED
- /* Treat them as errors on write */
- png_set_benign_errors(write_ptr, 0);
-# endif
-
- /* if strict is not set, then app warnings and errors are treated as
- * warnings in release builds, but not in unstable builds; this can be
- * changed with '--relaxed'.
- */
- }
-
- else if (relaxed != 0)
- {
- /* Allow application (pngtest) errors and warnings to pass */
- png_set_benign_errors(read_ptr, 1);
-
- /* Turn off CRC checking while reading */
- png_set_crc_action(read_ptr, PNG_CRC_QUIET_USE, PNG_CRC_QUIET_USE);
-
-#ifdef PNG_IGNORE_ADLER32
- /* Turn off ADLER32 checking while reading */
- png_set_option(read_ptr, PNG_IGNORE_ADLER32, PNG_OPTION_ON);
-#endif
-
-# ifdef PNG_WRITE_SUPPORTED
- png_set_benign_errors(write_ptr, 1);
-# endif
-
- }
-#endif /* BENIGN_ERRORS */
-
- pngtest_debug("Initializing input and output streams");
-#ifdef PNG_STDIO_SUPPORTED
- png_init_io(read_ptr, fpin);
-# ifdef PNG_WRITE_SUPPORTED
- png_init_io(write_ptr, fpout);
-# endif
-#else
- png_set_read_fn(read_ptr, (png_voidp)fpin, pngtest_read_data);
-# ifdef PNG_WRITE_SUPPORTED
- png_set_write_fn(write_ptr, (png_voidp)fpout, pngtest_write_data,
-# ifdef PNG_WRITE_FLUSH_SUPPORTED
- pngtest_flush);
-# else
- NULL);
-# endif
-# endif
-#endif
-
- if (status_dots_requested == 1)
- {
-#ifdef PNG_WRITE_SUPPORTED
- png_set_write_status_fn(write_ptr, write_row_callback);
-#endif
- png_set_read_status_fn(read_ptr, read_row_callback);
- }
-
- else
- {
-#ifdef PNG_WRITE_SUPPORTED
- png_set_write_status_fn(write_ptr, NULL);
-#endif
- png_set_read_status_fn(read_ptr, NULL);
- }
-
-#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
- png_set_read_user_transform_fn(read_ptr, read_user_callback);
-#endif
-#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
- zero_samples = 0;
- png_set_write_user_transform_fn(write_ptr, count_zero_samples);
-#endif
-
-#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
- /* Preserve all the unknown chunks, if possible. If this is disabled then,
- * even if the png_{get,set}_unknown_chunks stuff is enabled, we can't use
- * libpng to *save* the unknown chunks on read (because we can't switch the
- * save option on!)
- *
- * Notice that if SET_UNKNOWN_CHUNKS is *not* supported read will discard all
- * unknown chunks and write will write them all.
- */
-#ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
- png_set_keep_unknown_chunks(read_ptr, PNG_HANDLE_CHUNK_ALWAYS,
- NULL, 0);
-#endif
-#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
- png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_ALWAYS,
- NULL, 0);
-#endif
-#endif
-
- pngtest_debug("Reading info struct");
- png_read_info(read_ptr, read_info_ptr);
-
-#ifdef PNG_READ_USER_CHUNKS_SUPPORTED
- /* This is a bit of a hack; there is no obvious way in the callback function
- * to determine that the chunks before the first IDAT have been read, so
- * remove the info_ptr (which is only used to determine position relative to
- * PLTE) here to indicate that we are after the IDAT.
- */
- user_chunk_data.info_ptr = NULL;
-#endif
-
- pngtest_debug("Transferring info struct");
- {
- int interlace_type, compression_type, filter_type;
-
- if (png_get_IHDR(read_ptr, read_info_ptr, &width, &height, &bit_depth,
- &color_type, &interlace_type, &compression_type, &filter_type) != 0)
- {
- png_set_IHDR(write_ptr, write_info_ptr, width, height, bit_depth,
- color_type, interlace_type, compression_type, filter_type);
- /* num_passes may not be available below if interlace support is not
- * provided by libpng for both read and write.
- */
- switch (interlace_type)
- {
- case PNG_INTERLACE_NONE:
- num_passes = 1;
- break;
-
- case PNG_INTERLACE_ADAM7:
- num_passes = 7;
- break;
-
- default:
- png_error(read_ptr, "invalid interlace type");
- /*NOT REACHED*/
- }
- }
-
- else
- png_error(read_ptr, "png_get_IHDR failed");
- }
-#ifdef PNG_FIXED_POINT_SUPPORTED
-#ifdef PNG_cHRM_SUPPORTED
- {
- png_fixed_point white_x, white_y, red_x, red_y, green_x, green_y, blue_x,
- blue_y;
-
- if (png_get_cHRM_fixed(read_ptr, read_info_ptr, &white_x, &white_y,
- &red_x, &red_y, &green_x, &green_y, &blue_x, &blue_y) != 0)
- {
- png_set_cHRM_fixed(write_ptr, write_info_ptr, white_x, white_y, red_x,
- red_y, green_x, green_y, blue_x, blue_y);
- }
- }
-#endif
-#ifdef PNG_gAMA_SUPPORTED
- {
- png_fixed_point gamma;
-
- if (png_get_gAMA_fixed(read_ptr, read_info_ptr, &gamma) != 0)
- png_set_gAMA_fixed(write_ptr, write_info_ptr, gamma);
- }
-#endif
-#else /* Use floating point versions */
-#ifdef PNG_FLOATING_POINT_SUPPORTED
-#ifdef PNG_cHRM_SUPPORTED
- {
- double white_x, white_y, red_x, red_y, green_x, green_y, blue_x,
- blue_y;
-
- if (png_get_cHRM(read_ptr, read_info_ptr, &white_x, &white_y, &red_x,
- &red_y, &green_x, &green_y, &blue_x, &blue_y) != 0)
- {
- png_set_cHRM(write_ptr, write_info_ptr, white_x, white_y, red_x,
- red_y, green_x, green_y, blue_x, blue_y);
- }
- }
-#endif
-#ifdef PNG_gAMA_SUPPORTED
- {
- double gamma;
-
- if (png_get_gAMA(read_ptr, read_info_ptr, &gamma) != 0)
- png_set_gAMA(write_ptr, write_info_ptr, gamma);
- }
-#endif
-#endif /* Floating point */
-#endif /* Fixed point */
-#ifdef PNG_iCCP_SUPPORTED
- {
- png_charp name;
- png_bytep profile;
- png_uint_32 proflen;
- int compression_type;
-
- if (png_get_iCCP(read_ptr, read_info_ptr, &name, &compression_type,
- &profile, &proflen) != 0)
- {
- png_set_iCCP(write_ptr, write_info_ptr, name, compression_type,
- profile, proflen);
- }
- }
-#endif
-#ifdef PNG_sRGB_SUPPORTED
- {
- int intent;
-
- if (png_get_sRGB(read_ptr, read_info_ptr, &intent) != 0)
- png_set_sRGB(write_ptr, write_info_ptr, intent);
- }
-#endif
- {
- png_colorp palette;
- int num_palette;
-
- if (png_get_PLTE(read_ptr, read_info_ptr, &palette, &num_palette) != 0)
- png_set_PLTE(write_ptr, write_info_ptr, palette, num_palette);
- }
-#ifdef PNG_bKGD_SUPPORTED
- {
- png_color_16p background;
-
- if (png_get_bKGD(read_ptr, read_info_ptr, &background) != 0)
- {
- png_set_bKGD(write_ptr, write_info_ptr, background);
- }
- }
-#endif
-#ifdef PNG_READ_eXIf_SUPPORTED
- {
- png_bytep exif=NULL;
- png_uint_32 exif_length;
-
- if (png_get_eXIf_1(read_ptr, read_info_ptr, &exif_length, &exif) != 0)
- {
- if (exif_length > 1)
- fprintf(STDERR," eXIf type %c%c, %lu bytes\n",exif[0],exif[1],
- (unsigned long)exif_length);
-# ifdef PNG_WRITE_eXIf_SUPPORTED
- png_set_eXIf_1(write_ptr, write_info_ptr, exif_length, exif);
-# endif
- }
- }
-#endif
-#ifdef PNG_hIST_SUPPORTED
- {
- png_uint_16p hist;
-
- if (png_get_hIST(read_ptr, read_info_ptr, &hist) != 0)
- png_set_hIST(write_ptr, write_info_ptr, hist);
- }
-#endif
-#ifdef PNG_oFFs_SUPPORTED
- {
- png_int_32 offset_x, offset_y;
- int unit_type;
-
- if (png_get_oFFs(read_ptr, read_info_ptr, &offset_x, &offset_y,
- &unit_type) != 0)
- {
- png_set_oFFs(write_ptr, write_info_ptr, offset_x, offset_y, unit_type);
- }
- }
-#endif
-#ifdef PNG_pCAL_SUPPORTED
- {
- png_charp purpose, units;
- png_charpp params;
- png_int_32 X0, X1;
- int type, nparams;
-
- if (png_get_pCAL(read_ptr, read_info_ptr, &purpose, &X0, &X1, &type,
- &nparams, &units, ¶ms) != 0)
- {
- png_set_pCAL(write_ptr, write_info_ptr, purpose, X0, X1, type,
- nparams, units, params);
- }
- }
-#endif
-#ifdef PNG_pHYs_SUPPORTED
- {
- png_uint_32 res_x, res_y;
- int unit_type;
-
- if (png_get_pHYs(read_ptr, read_info_ptr, &res_x, &res_y,
- &unit_type) != 0)
- png_set_pHYs(write_ptr, write_info_ptr, res_x, res_y, unit_type);
- }
-#endif
-#ifdef PNG_sBIT_SUPPORTED
- {
- png_color_8p sig_bit;
-
- if (png_get_sBIT(read_ptr, read_info_ptr, &sig_bit) != 0)
- png_set_sBIT(write_ptr, write_info_ptr, sig_bit);
- }
-#endif
-#ifdef PNG_sCAL_SUPPORTED
-#if defined(PNG_FLOATING_POINT_SUPPORTED) && \
- defined(PNG_FLOATING_ARITHMETIC_SUPPORTED)
- {
- int unit;
- double scal_width, scal_height;
-
- if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &scal_width,
- &scal_height) != 0)
- {
- png_set_sCAL(write_ptr, write_info_ptr, unit, scal_width, scal_height);
- }
- }
-#else
-#ifdef PNG_FIXED_POINT_SUPPORTED
- {
- int unit;
- png_charp scal_width, scal_height;
-
- if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width,
- &scal_height) != 0)
- {
- png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width,
- scal_height);
- }
- }
-#endif
-#endif
-#endif
-
-#ifdef PNG_sPLT_SUPPORTED
- {
- png_sPLT_tp entries;
-
- int num_entries = (int) png_get_sPLT(read_ptr, read_info_ptr, &entries);
- if (num_entries)
- {
- png_set_sPLT(write_ptr, write_info_ptr, entries, num_entries);
- }
- }
-#endif
-
-#ifdef PNG_TEXT_SUPPORTED
- {
- png_textp text_ptr;
- int num_text;
-
- if (png_get_text(read_ptr, read_info_ptr, &text_ptr, &num_text) > 0)
- {
- pngtest_debug1("Handling %d iTXt/tEXt/zTXt chunks", num_text);
-
- pngtest_check_text_support(read_ptr, text_ptr, num_text);
-
- if (verbose != 0)
- {
- int i;
-
- fprintf(STDERR,"\n");
- for (i=0; i<num_text; i++)
- {
- fprintf(STDERR," Text compression[%d]=%d\n",
- i, text_ptr[i].compression);
- }
- }
-
- png_set_text(write_ptr, write_info_ptr, text_ptr, num_text);
- }
- }
-#endif
-#ifdef PNG_tIME_SUPPORTED
- {
- png_timep mod_time;
-
- if (png_get_tIME(read_ptr, read_info_ptr, &mod_time) != 0)
- {
- png_set_tIME(write_ptr, write_info_ptr, mod_time);
-#ifdef PNG_TIME_RFC1123_SUPPORTED
- if (png_convert_to_rfc1123_buffer(tIME_string, mod_time) != 0)
- tIME_string[(sizeof tIME_string) - 1] = '\0';
-
- else
- {
- strncpy(tIME_string, "*** invalid time ***", (sizeof tIME_string));
- tIME_string[(sizeof tIME_string) - 1] = '\0';
- }
-
- tIME_chunk_present++;
-#endif /* TIME_RFC1123 */
- }
- }
-#endif
-#ifdef PNG_tRNS_SUPPORTED
- {
- png_bytep trans_alpha;
- int num_trans;
- png_color_16p trans_color;
-
- if (png_get_tRNS(read_ptr, read_info_ptr, &trans_alpha, &num_trans,
- &trans_color) != 0)
- {
- int sample_max = (1 << bit_depth);
- /* libpng doesn't reject a tRNS chunk with out-of-range samples */
- if (!((color_type == PNG_COLOR_TYPE_GRAY &&
- (int)trans_color->gray > sample_max) ||
- (color_type == PNG_COLOR_TYPE_RGB &&
- ((int)trans_color->red > sample_max ||
- (int)trans_color->green > sample_max ||
- (int)trans_color->blue > sample_max))))
- png_set_tRNS(write_ptr, write_info_ptr, trans_alpha, num_trans,
- trans_color);
- }
- }
-#endif
-#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
- {
- png_unknown_chunkp unknowns;
- int num_unknowns = png_get_unknown_chunks(read_ptr, read_info_ptr,
- &unknowns);
-
- if (num_unknowns != 0)
- {
- png_set_unknown_chunks(write_ptr, write_info_ptr, unknowns,
- num_unknowns);
-#if PNG_LIBPNG_VER < 10600
- /* Copy the locations from the read_info_ptr. The automatically
- * generated locations in write_end_info_ptr are wrong prior to 1.6.0
- * because they are reset from the write pointer (removed in 1.6.0).
- */
- {
- int i;
- for (i = 0; i < num_unknowns; i++)
- png_set_unknown_chunk_location(write_ptr, write_info_ptr, i,
- unknowns[i].location);
- }
-#endif
- }
- }
-#endif
-
-#ifdef PNG_WRITE_SUPPORTED
- pngtest_debug("Writing info struct");
-
- /* Write the info in two steps so that if we write the 'unknown' chunks here
- * they go to the correct place.
- */
- png_write_info_before_PLTE(write_ptr, write_info_ptr);
-
- write_chunks(write_ptr, before_PLTE); /* before PLTE */
-
- png_write_info(write_ptr, write_info_ptr);
-
- write_chunks(write_ptr, before_IDAT); /* after PLTE */
-
- png_write_info(write_ptr, write_end_info_ptr);
-
- write_chunks(write_ptr, after_IDAT); /* after IDAT */
-
-#ifdef PNG_COMPRESSION_COMPAT
- /* Test the 'compatibility' setting here, if it is available. */
- png_set_compression(write_ptr, PNG_COMPRESSION_COMPAT);
-#endif
-#endif
-
-#ifdef SINGLE_ROWBUF_ALLOC
- pngtest_debug("Allocating row buffer...");
- row_buf = (png_bytep)png_malloc(read_ptr,
- png_get_rowbytes(read_ptr, read_info_ptr));
-
- pngtest_debug1("\t%p", row_buf);
-#endif /* SINGLE_ROWBUF_ALLOC */
- pngtest_debug("Writing row data");
-
-#if defined(PNG_READ_INTERLACING_SUPPORTED) &&\
- defined(PNG_WRITE_INTERLACING_SUPPORTED)
- /* Both must be defined for libpng to be able to handle the interlace,
- * otherwise it gets handled below by simply reading and writing the passes
- * directly.
- */
- if (png_set_interlace_handling(read_ptr) != num_passes)
- png_error(write_ptr,
- "png_set_interlace_handling(read): wrong pass count ");
- if (png_set_interlace_handling(write_ptr) != num_passes)
- png_error(write_ptr,
- "png_set_interlace_handling(write): wrong pass count ");
-#else /* png_set_interlace_handling not called on either read or write */
-# define calc_pass_height
-#endif /* not using libpng interlace handling */
-
-#ifdef PNGTEST_TIMING
- t_stop = (float)clock();
- t_misc += (t_stop - t_start);
- t_start = t_stop;
-#endif
- for (pass = 0; pass < num_passes; pass++)
- {
-# ifdef calc_pass_height
- png_uint_32 pass_height;
-
- if (num_passes == 7) /* interlaced */
- {
- if (PNG_PASS_COLS(width, pass) > 0)
- pass_height = PNG_PASS_ROWS(height, pass);
-
- else
- pass_height = 0;
- }
-
- else /* not interlaced */
- pass_height = height;
-# else
-# define pass_height height
-# endif
-
- pngtest_debug1("Writing row data for pass %d", pass);
- for (y = 0; y < pass_height; y++)
- {
-#ifndef SINGLE_ROWBUF_ALLOC
- pngtest_debug2("Allocating row buffer (pass %d, y = %u)...", pass, y);
-
- row_buf = (png_bytep)png_malloc(read_ptr,
- png_get_rowbytes(read_ptr, read_info_ptr));
-
- pngtest_debug2("\t%p (%lu bytes)", row_buf,
- (unsigned long)png_get_rowbytes(read_ptr, read_info_ptr));
-
-#endif /* !SINGLE_ROWBUF_ALLOC */
- png_read_rows(read_ptr, (png_bytepp)&row_buf, NULL, 1);
-
-#ifdef PNG_WRITE_SUPPORTED
-#ifdef PNGTEST_TIMING
- t_stop = (float)clock();
- t_decode += (t_stop - t_start);
- t_start = t_stop;
-#endif
- png_write_rows(write_ptr, (png_bytepp)&row_buf, 1);
-#ifdef PNGTEST_TIMING
- t_stop = (float)clock();
- t_encode += (t_stop - t_start);
- t_start = t_stop;
-#endif
-#endif /* WRITE */
-
-#ifndef SINGLE_ROWBUF_ALLOC
- pngtest_debug2("Freeing row buffer (pass %d, y = %u)", pass, y);
- png_free(read_ptr, row_buf);
- row_buf = NULL;
-#endif /* !SINGLE_ROWBUF_ALLOC */
- }
- }
-
-#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
-# ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
- png_free_data(read_ptr, read_info_ptr, PNG_FREE_UNKN, -1);
-# endif
-# ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
- png_free_data(write_ptr, write_info_ptr, PNG_FREE_UNKN, -1);
-# endif
-#endif
-
- pngtest_debug("Reading and writing end_info data");
-
- png_read_end(read_ptr, end_info_ptr);
-#ifdef PNG_TEXT_SUPPORTED
- {
- png_textp text_ptr;
- int num_text;
-
- if (png_get_text(read_ptr, end_info_ptr, &text_ptr, &num_text) > 0)
- {
- pngtest_debug1("Handling %d iTXt/tEXt/zTXt chunks", num_text);
-
- pngtest_check_text_support(read_ptr, text_ptr, num_text);
-
- if (verbose != 0)
- {
- int i;
-
- fprintf(STDERR,"\n");
- for (i=0; i<num_text; i++)
- {
- fprintf(STDERR," Text compression[%d]=%d\n",
- i, text_ptr[i].compression);
- }
- }
-
- png_set_text(write_ptr, write_end_info_ptr, text_ptr, num_text);
- }
- }
-#endif
-#ifdef PNG_READ_eXIf_SUPPORTED
- {
- png_bytep exif=NULL;
- png_uint_32 exif_length;
-
- if (png_get_eXIf_1(read_ptr, end_info_ptr, &exif_length, &exif) != 0)
- {
- if (exif_length > 1)
- fprintf(STDERR," eXIf type %c%c, %lu bytes\n",exif[0],exif[1],
- (unsigned long)exif_length);
-# ifdef PNG_WRITE_eXIf_SUPPORTED
- png_set_eXIf_1(write_ptr, write_end_info_ptr, exif_length, exif);
-# endif
- }
- }
-#endif
-#ifdef PNG_tIME_SUPPORTED
- {
- png_timep mod_time;
-
- if (png_get_tIME(read_ptr, end_info_ptr, &mod_time) != 0)
- {
- png_set_tIME(write_ptr, write_end_info_ptr, mod_time);
-#ifdef PNG_TIME_RFC1123_SUPPORTED
- if (png_convert_to_rfc1123_buffer(tIME_string, mod_time) != 0)
- tIME_string[(sizeof tIME_string) - 1] = '\0';
-
- else
- {
- strncpy(tIME_string, "*** invalid time ***", sizeof tIME_string);
- tIME_string[(sizeof tIME_string)-1] = '\0';
- }
-
- tIME_chunk_present++;
-#endif /* TIME_RFC1123 */
- }
- }
-#endif
-#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
- {
- png_unknown_chunkp unknowns;
- int num_unknowns = png_get_unknown_chunks(read_ptr, end_info_ptr,
- &unknowns);
-
- if (num_unknowns != 0)
- {
- png_set_unknown_chunks(write_ptr, write_end_info_ptr, unknowns,
- num_unknowns);
-#if PNG_LIBPNG_VER < 10600
- /* Copy the locations from the read_info_ptr. The automatically
- * generated locations in write_end_info_ptr are wrong prior to 1.6.0
- * because they are reset from the write pointer (removed in 1.6.0).
- */
- {
- int i;
- for (i = 0; i < num_unknowns; i++)
- png_set_unknown_chunk_location(write_ptr, write_end_info_ptr, i,
- unknowns[i].location);
- }
-#endif
- }
- }
-#endif
-
-#ifdef PNG_WRITE_SUPPORTED
-#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
- /* Normally one would use Z_DEFAULT_STRATEGY for text compression.
- * This is here just to make pngtest replicate the results from libpng
- * versions prior to 1.5.4, and to test this new API.
- */
- png_set_text_compression_strategy(write_ptr, Z_FILTERED);
-#endif
-
- /* When the unknown vpAg/sTER chunks are written by pngtest the only way to
- * do it is to write them *before* calling png_write_end. When unknown
- * chunks are written by libpng, however, they are written just before IEND.
- * There seems to be no way round this, however vpAg/sTER are not expected
- * after IDAT.
- */
- write_chunks(write_ptr, after_IDAT);
-
- png_write_end(write_ptr, write_end_info_ptr);
-#endif
-
-#ifdef PNG_EASY_ACCESS_SUPPORTED
- if (verbose != 0)
- {
- png_uint_32 iwidth, iheight;
- iwidth = png_get_image_width(write_ptr, write_info_ptr);
- iheight = png_get_image_height(write_ptr, write_info_ptr);
- fprintf(STDERR, "\n Image width = %lu, height = %lu\n",
- (unsigned long)iwidth, (unsigned long)iheight);
- }
-#endif
-
- pngtest_debug("Destroying data structs");
-#ifdef SINGLE_ROWBUF_ALLOC
- pngtest_debug("destroying row_buf for read_ptr");
- png_free(read_ptr, row_buf);
- row_buf = NULL;
-#endif /* SINGLE_ROWBUF_ALLOC */
- pngtest_debug("destroying read_ptr, read_info_ptr, end_info_ptr");
- png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);
-#ifdef PNG_WRITE_SUPPORTED
- pngtest_debug("destroying write_end_info_ptr");
- png_destroy_info_struct(write_ptr, &write_end_info_ptr);
- pngtest_debug("destroying write_ptr, write_info_ptr");
- png_destroy_write_struct(&write_ptr, &write_info_ptr);
-#endif
- pngtest_debug("Destruction complete.");
-
- FCLOSE(fpin);
- FCLOSE(fpout);
-
- /* Summarize any warnings or errors and in 'strict' mode fail the test.
- * Unsupported chunks can result in warnings, in that case ignore the strict
- * setting, otherwise fail the test on warnings as well as errors.
- */
- if (error_count > 0)
- {
- /* We don't really expect to get here because of the setjmp handling
- * above, but this is safe.
- */
- fprintf(STDERR, "\n %s: %d libpng errors found (%d warnings)",
- inname, error_count, warning_count);
-
- if (strict != 0)
- return (1);
- }
-
-# ifdef PNG_WRITE_SUPPORTED
- /* If there is no write support nothing was written! */
- else if (unsupported_chunks > 0)
- {
- fprintf(STDERR, "\n %s: unsupported chunks (%d)%s",
- inname, unsupported_chunks, strict ? ": IGNORED --strict!" : "");
- }
-# endif
-
- else if (warning_count > 0)
- {
- fprintf(STDERR, "\n %s: %d libpng warnings found",
- inname, warning_count);
-
- if (strict != 0)
- return (1);
- }
-
- pngtest_debug("Opening files for comparison");
- if ((fpin = fopen(inname, "rb")) == NULL)
- {
- fprintf(STDERR, "Could not find file %s\n", inname);
- return (1);
- }
-
- if ((fpout = fopen(outname, "rb")) == NULL)
- {
- fprintf(STDERR, "Could not find file %s\n", outname);
- FCLOSE(fpin);
- return (1);
- }
-
-#if defined (PNG_WRITE_SUPPORTED) /* else nothing was written */ &&\
- defined (PNG_WRITE_FILTER_SUPPORTED)
- if (interlace_preserved != 0) /* else the files will be changed */
- {
- for (;;)
- {
- static int wrote_question = 0;
- size_t num_in, num_out;
- char inbuf[256], outbuf[256];
-
- num_in = fread(inbuf, 1, sizeof inbuf, fpin);
- num_out = fread(outbuf, 1, sizeof outbuf, fpout);
-
- if (num_in != num_out)
- {
- fprintf(STDERR, "\nFiles %s and %s are of a different size\n",
- inname, outname);
-
- if (wrote_question == 0 && unsupported_chunks == 0)
- {
- fprintf(STDERR,
- " Was %s written with the same maximum IDAT"
- " chunk size (%d bytes),",
- inname, PNG_ZBUF_SIZE);
- fprintf(STDERR,
- "\n filtering heuristic (libpng default), compression");
- fprintf(STDERR,
- " level (zlib default),\n and zlib version (%s)?\n\n",
- ZLIB_VERSION);
- wrote_question = 1;
- }
-
- FCLOSE(fpin);
- FCLOSE(fpout);
-
- if (strict != 0 && unsupported_chunks == 0)
- return (1);
-
- else
- return (0);
- }
-
- if (num_in == 0)
- break;
-
- if (memcmp(inbuf, outbuf, num_in))
- {
- fprintf(STDERR, "\nFiles %s and %s are different\n", inname,
- outname);
-
- if (wrote_question == 0 && unsupported_chunks == 0)
- {
- fprintf(STDERR,
- " Was %s written with the same maximum"
- " IDAT chunk size (%d bytes),",
- inname, PNG_ZBUF_SIZE);
- fprintf(STDERR,
- "\n filtering heuristic (libpng default), compression");
- fprintf(STDERR,
- " level (zlib default),\n and zlib version (%s)?\n\n",
- ZLIB_VERSION);
- wrote_question = 1;
- }
-
- FCLOSE(fpin);
- FCLOSE(fpout);
-
- /* NOTE: the unsupported_chunks escape is permitted here because
- * unsupported text chunk compression will result in the compression
- * mode being changed (to NONE) yet, in the test case, the result
- * can be exactly the same size!
- */
- if (strict != 0 && unsupported_chunks == 0)
- return (1);
-
- else
- return (0);
- }
- }
- }
-#endif /* WRITE && WRITE_FILTER */
-
- FCLOSE(fpin);
- FCLOSE(fpout);
-
- return (0);
-}
-
-/* Input and output filenames */
-#ifdef RISCOS
-static const char *inname = "pngtest/png";
-static const char *outname = "pngout/png";
-#else
-static const char *inname = "pngtest.png";
-static const char *outname = "pngout.png";
-#endif
-
-int
-main(int argc, char *argv[])
-{
- int multiple = 0;
- int ierror = 0;
-
- png_structp dummy_ptr;
-
- fprintf(STDERR, "\n Testing libpng version %s\n", PNG_LIBPNG_VER_STRING);
- fprintf(STDERR, " with zlib version %s\n", ZLIB_VERSION);
- fprintf(STDERR, "%s", png_get_copyright(NULL));
- /* Show the version of libpng used in building the library */
- fprintf(STDERR, " library (%lu):%s",
- (unsigned long)png_access_version_number(),
- png_get_header_version(NULL));
-
- /* Show the version of libpng used in building the application */
- fprintf(STDERR, " pngtest (%lu):%s", (unsigned long)PNG_LIBPNG_VER,
- PNG_HEADER_VERSION_STRING);
-
- /* Do some consistency checking on the memory allocation settings, I'm
- * not sure this matters, but it is nice to know, the first of these
- * tests should be impossible because of the way the macros are set
- * in pngconf.h
- */
-#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
- fprintf(STDERR, " NOTE: Zlib compiled for max 64k, libpng not\n");
-#endif
- /* I think the following can happen. */
-#if !defined(MAXSEG_64K) && defined(PNG_MAX_MALLOC_64K)
- fprintf(STDERR, " NOTE: libpng compiled for max 64k, zlib not\n");
-#endif
-
- if (strcmp(png_libpng_ver, PNG_LIBPNG_VER_STRING))
- {
- fprintf(STDERR,
- "Warning: versions are different between png.h and png.c\n");
- fprintf(STDERR, " png.h version: %s\n", PNG_LIBPNG_VER_STRING);
- fprintf(STDERR, " png.c version: %s\n\n", png_libpng_ver);
- ++ierror;
- }
-
- if (argc > 1)
- {
- if (strcmp(argv[1], "-m") == 0)
- {
- multiple = 1;
- status_dots_requested = 0;
- }
-
- else if (strcmp(argv[1], "-mv") == 0 ||
- strcmp(argv[1], "-vm") == 0 )
- {
- multiple = 1;
- verbose = 1;
- status_dots_requested = 1;
- }
-
- else if (strcmp(argv[1], "-v") == 0)
- {
- verbose = 1;
- status_dots_requested = 1;
- inname = argv[2];
- }
-
- else if (strcmp(argv[1], "--strict") == 0)
- {
- status_dots_requested = 0;
- verbose = 1;
- inname = argv[2];
- strict++;
- relaxed = 0;
- multiple=1;
- }
-
- else if (strcmp(argv[1], "--relaxed") == 0)
- {
- status_dots_requested = 0;
- verbose = 1;
- inname = argv[2];
- strict = 0;
- relaxed++;
- multiple=1;
- }
- else if (strcmp(argv[1], "--xfail") == 0)
- {
- status_dots_requested = 0;
- verbose = 1;
- inname = argv[2];
- strict = 0;
- xfail++;
- relaxed++;
- multiple=1;
- }
-
- else
- {
- inname = argv[1];
- status_dots_requested = 0;
- }
- }
-
- if (multiple == 0 && argc == 3 + verbose)
- outname = argv[2 + verbose];
-
- if ((multiple == 0 && argc > 3 + verbose) ||
- (multiple != 0 && argc < 2))
- {
- fprintf(STDERR,
- "usage: %s [infile.png] [outfile.png]\n\t%s -m {infile.png}\n",
- argv[0], argv[0]);
- fprintf(STDERR,
- " reads/writes one PNG file (without -m) or multiple files (-m)\n");
- fprintf(STDERR,
- " with -m %s is used as a temporary file\n", outname);
- exit(1);
- }
-
- if (multiple != 0)
- {
- int i;
-#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
- int allocation_now = current_allocation;
-#endif
- for (i=2; i<argc; ++i)
- {
- int kerror;
- fprintf(STDERR, "\n Testing %s:", argv[i]);
-#if PNG_DEBUG > 0
- fprintf(STDERR, "\n");
-#endif
- kerror = test_one_file(argv[i], outname);
- if (kerror == 0)
- {
-#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
- fprintf(STDERR, "\n PASS (%lu zero samples)\n",
- (unsigned long)zero_samples);
-#else
- fprintf(STDERR, " PASS\n");
-#endif
-#ifdef PNG_TIME_RFC1123_SUPPORTED
- if (tIME_chunk_present != 0)
- fprintf(STDERR, " tIME = %s\n", tIME_string);
-
- tIME_chunk_present = 0;
-#endif /* TIME_RFC1123 */
- }
-
- else
- {
- if (xfail)
- fprintf(STDERR, " XFAIL\n");
- else
- {
- fprintf(STDERR, " FAIL\n");
- ierror += kerror;
- }
- }
-#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
- if (allocation_now != current_allocation)
- fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n",
- current_allocation - allocation_now);
-
- if (current_allocation != 0)
- {
- memory_infop pinfo = pinformation;
-
- fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n",
- current_allocation);
-
- while (pinfo != NULL)
- {
- fprintf(STDERR, " %lu bytes at %p\n",
- (unsigned long)pinfo->size,
- pinfo->pointer);
- pinfo = pinfo->next;
- }
- }
-#endif
- }
-#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
- fprintf(STDERR, " Current memory allocation: %10d bytes\n",
- current_allocation);
- fprintf(STDERR, " Maximum memory allocation: %10d bytes\n",
- maximum_allocation);
- fprintf(STDERR, " Total memory allocation: %10d bytes\n",
- total_allocation);
- fprintf(STDERR, " Number of allocations: %10d\n",
- num_allocations);
-#endif
- }
-
- else
- {
- int i;
- for (i = 0; i<3; ++i)
- {
- int kerror;
-#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
- int allocation_now = current_allocation;
-#endif
- if (i == 1)
- status_dots_requested = 1;
-
- else if (verbose == 0)
- status_dots_requested = 0;
-
- if (i == 0 || verbose == 1 || ierror != 0)
- {
- fprintf(STDERR, "\n Testing %s:", inname);
-#if PNG_DEBUG > 0
- fprintf(STDERR, "\n");
-#endif
- }
-
- kerror = test_one_file(inname, outname);
-
- if (kerror == 0)
- {
- if (verbose == 1 || i == 2)
- {
-#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
- fprintf(STDERR, "\n PASS (%lu zero samples)\n",
- (unsigned long)zero_samples);
-#else
- fprintf(STDERR, " PASS\n");
-#endif
-#ifdef PNG_TIME_RFC1123_SUPPORTED
- if (tIME_chunk_present != 0)
- fprintf(STDERR, " tIME = %s\n", tIME_string);
-#endif /* TIME_RFC1123 */
- }
- }
-
- else
- {
- if (verbose == 0 && i != 2)
- {
- fprintf(STDERR, "\n Testing %s:", inname);
-#if PNG_DEBUG > 0
- fprintf(STDERR, "\n");
-#endif
- }
-
- if (xfail)
- fprintf(STDERR, " XFAIL\n");
- else
- {
- fprintf(STDERR, " FAIL\n");
- ierror += kerror;
- }
- }
-#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
- if (allocation_now != current_allocation)
- fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n",
- current_allocation - allocation_now);
-
- if (current_allocation != 0)
- {
- memory_infop pinfo = pinformation;
-
- fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n",
- current_allocation);
-
- while (pinfo != NULL)
- {
- fprintf(STDERR, " %lu bytes at %p\n",
- (unsigned long)pinfo->size, pinfo->pointer);
- pinfo = pinfo->next;
- }
- }
-#endif
- }
-#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
- fprintf(STDERR, " Current memory allocation: %10d bytes\n",
- current_allocation);
- fprintf(STDERR, " Maximum memory allocation: %10d bytes\n",
- maximum_allocation);
- fprintf(STDERR, " Total memory allocation: %10d bytes\n",
- total_allocation);
- fprintf(STDERR, " Number of allocations: %10d\n",
- num_allocations);
-#endif
- }
-
-#ifdef PNGTEST_TIMING
- t_stop = (float)clock();
- t_misc += (t_stop - t_start);
- t_start = t_stop;
- fprintf(STDERR, " CPU time used = %.3f seconds",
- (t_misc+t_decode+t_encode)/(float)CLOCKS_PER_SEC);
- fprintf(STDERR, " (decoding %.3f,\n",
- t_decode/(float)CLOCKS_PER_SEC);
- fprintf(STDERR, " encoding %.3f ,",
- t_encode/(float)CLOCKS_PER_SEC);
- fprintf(STDERR, " other %.3f seconds)\n\n",
- t_misc/(float)CLOCKS_PER_SEC);
-#endif
-
- if (ierror == 0)
- fprintf(STDERR, " libpng passes test\n");
-
- else
- fprintf(STDERR, " libpng FAILS test\n");
-
- dummy_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
- fprintf(STDERR, " Default limits:\n");
- fprintf(STDERR, " width_max = %lu\n",
- (unsigned long) png_get_user_width_max(dummy_ptr));
- fprintf(STDERR, " height_max = %lu\n",
- (unsigned long) png_get_user_height_max(dummy_ptr));
- if (png_get_chunk_cache_max(dummy_ptr) == 0)
- fprintf(STDERR, " cache_max = unlimited\n");
- else
- fprintf(STDERR, " cache_max = %lu\n",
- (unsigned long) png_get_chunk_cache_max(dummy_ptr));
- if (png_get_chunk_malloc_max(dummy_ptr) == 0)
- fprintf(STDERR, " malloc_max = unlimited\n");
- else
- fprintf(STDERR, " malloc_max = %lu\n",
- (unsigned long) png_get_chunk_malloc_max(dummy_ptr));
- png_destroy_read_struct(&dummy_ptr, NULL, NULL);
-
- return (int)(ierror != 0);
-}
-#else
-int
-main(void)
-{
- fprintf(STDERR,
- " test ignored because libpng was not built with read support\n");
- /* And skip this test */
- return PNG_LIBPNG_VER < 10600 ? 0 : 77;
-}
-#endif
-
-/* Generate a compiler error if there is an old png.h in the search path. */
-typedef png_libpng_version_1_6_37 Your_png_h_is_not_version_1_6_37;
diff --git a/3rdparty/libpng/libpng-1.6.37/pngtest.o b/3rdparty/libpng/libpng-1.6.37/pngtest.o
deleted file mode 100644
index 59a9c9f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngtest.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngtest.png b/3rdparty/libpng/libpng-1.6.37/pngtest.png
deleted file mode 100644
index 66df0c4..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngtest.png
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngtrans.c b/3rdparty/libpng/libpng-1.6.37/pngtrans.c
deleted file mode 100644
index 1100f46..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngtrans.c
+++ /dev/null
@@ -1,864 +0,0 @@
-
-/* pngtrans.c - transforms the data in a row (used by both readers and writers)
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#include "pngpriv.h"
-
-#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
-
-#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED)
-/* Turn on BGR-to-RGB mapping */
-void PNGAPI
-png_set_bgr(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_bgr");
-
- if (png_ptr == NULL)
- return;
-
- png_ptr->transformations |= PNG_BGR;
-}
-#endif
-
-#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED)
-/* Turn on 16-bit byte swapping */
-void PNGAPI
-png_set_swap(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_swap");
-
- if (png_ptr == NULL)
- return;
-
- if (png_ptr->bit_depth == 16)
- png_ptr->transformations |= PNG_SWAP_BYTES;
-}
-#endif
-
-#if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
-/* Turn on pixel packing */
-void PNGAPI
-png_set_packing(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_packing");
-
- if (png_ptr == NULL)
- return;
-
- if (png_ptr->bit_depth < 8)
- {
- png_ptr->transformations |= PNG_PACK;
-# ifdef PNG_WRITE_SUPPORTED
- png_ptr->usr_bit_depth = 8;
-# endif
- }
-}
-#endif
-
-#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED)
-/* Turn on packed pixel swapping */
-void PNGAPI
-png_set_packswap(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_packswap");
-
- if (png_ptr == NULL)
- return;
-
- if (png_ptr->bit_depth < 8)
- png_ptr->transformations |= PNG_PACKSWAP;
-}
-#endif
-
-#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED)
-void PNGAPI
-png_set_shift(png_structrp png_ptr, png_const_color_8p true_bits)
-{
- png_debug(1, "in png_set_shift");
-
- if (png_ptr == NULL)
- return;
-
- png_ptr->transformations |= PNG_SHIFT;
- png_ptr->shift = *true_bits;
-}
-#endif
-
-#if defined(PNG_READ_INTERLACING_SUPPORTED) || \
- defined(PNG_WRITE_INTERLACING_SUPPORTED)
-int PNGAPI
-png_set_interlace_handling(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_interlace handling");
-
- if (png_ptr != 0 && png_ptr->interlaced != 0)
- {
- png_ptr->transformations |= PNG_INTERLACE;
- return (7);
- }
-
- return (1);
-}
-#endif
-
-#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED)
-/* Add a filler byte on read, or remove a filler or alpha byte on write.
- * The filler type has changed in v0.95 to allow future 2-byte fillers
- * for 48-bit input data, as well as to avoid problems with some compilers
- * that don't like bytes as parameters.
- */
-void PNGAPI
-png_set_filler(png_structrp png_ptr, png_uint_32 filler, int filler_loc)
-{
- png_debug(1, "in png_set_filler");
-
- if (png_ptr == NULL)
- return;
-
- /* In libpng 1.6 it is possible to determine whether this is a read or write
- * operation and therefore to do more checking here for a valid call.
- */
- if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0)
- {
-# ifdef PNG_READ_FILLER_SUPPORTED
- /* On read png_set_filler is always valid, regardless of the base PNG
- * format, because other transformations can give a format where the
- * filler code can execute (basically an 8 or 16-bit component RGB or G
- * format.)
- *
- * NOTE: usr_channels is not used by the read code! (This has led to
- * confusion in the past.) The filler is only used in the read code.
- */
- png_ptr->filler = (png_uint_16)filler;
-# else
- png_app_error(png_ptr, "png_set_filler not supported on read");
- PNG_UNUSED(filler) /* not used in the write case */
- return;
-# endif
- }
-
- else /* write */
- {
-# ifdef PNG_WRITE_FILLER_SUPPORTED
- /* On write the usr_channels parameter must be set correctly at the
- * start to record the number of channels in the app-supplied data.
- */
- switch (png_ptr->color_type)
- {
- case PNG_COLOR_TYPE_RGB:
- png_ptr->usr_channels = 4;
- break;
-
- case PNG_COLOR_TYPE_GRAY:
- if (png_ptr->bit_depth >= 8)
- {
- png_ptr->usr_channels = 2;
- break;
- }
-
- else
- {
- /* There simply isn't any code in libpng to strip out bits
- * from bytes when the components are less than a byte in
- * size!
- */
- png_app_error(png_ptr,
- "png_set_filler is invalid for"
- " low bit depth gray output");
- return;
- }
-
- default:
- png_app_error(png_ptr,
- "png_set_filler: inappropriate color type");
- return;
- }
-# else
- png_app_error(png_ptr, "png_set_filler not supported on write");
- return;
-# endif
- }
-
- /* Here on success - libpng supports the operation, set the transformation
- * and the flag to say where the filler channel is.
- */
- png_ptr->transformations |= PNG_FILLER;
-
- if (filler_loc == PNG_FILLER_AFTER)
- png_ptr->flags |= PNG_FLAG_FILLER_AFTER;
-
- else
- png_ptr->flags &= ~PNG_FLAG_FILLER_AFTER;
-}
-
-/* Added to libpng-1.2.7 */
-void PNGAPI
-png_set_add_alpha(png_structrp png_ptr, png_uint_32 filler, int filler_loc)
-{
- png_debug(1, "in png_set_add_alpha");
-
- if (png_ptr == NULL)
- return;
-
- png_set_filler(png_ptr, filler, filler_loc);
- /* The above may fail to do anything. */
- if ((png_ptr->transformations & PNG_FILLER) != 0)
- png_ptr->transformations |= PNG_ADD_ALPHA;
-}
-
-#endif
-
-#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \
- defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED)
-void PNGAPI
-png_set_swap_alpha(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_swap_alpha");
-
- if (png_ptr == NULL)
- return;
-
- png_ptr->transformations |= PNG_SWAP_ALPHA;
-}
-#endif
-
-#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) || \
- defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED)
-void PNGAPI
-png_set_invert_alpha(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_invert_alpha");
-
- if (png_ptr == NULL)
- return;
-
- png_ptr->transformations |= PNG_INVERT_ALPHA;
-}
-#endif
-
-#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED)
-void PNGAPI
-png_set_invert_mono(png_structrp png_ptr)
-{
- png_debug(1, "in png_set_invert_mono");
-
- if (png_ptr == NULL)
- return;
-
- png_ptr->transformations |= PNG_INVERT_MONO;
-}
-
-/* Invert monochrome grayscale data */
-void /* PRIVATE */
-png_do_invert(png_row_infop row_info, png_bytep row)
-{
- png_debug(1, "in png_do_invert");
-
- /* This test removed from libpng version 1.0.13 and 1.2.0:
- * if (row_info->bit_depth == 1 &&
- */
- if (row_info->color_type == PNG_COLOR_TYPE_GRAY)
- {
- png_bytep rp = row;
- size_t i;
- size_t istop = row_info->rowbytes;
-
- for (i = 0; i < istop; i++)
- {
- *rp = (png_byte)(~(*rp));
- rp++;
- }
- }
-
- else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA &&
- row_info->bit_depth == 8)
- {
- png_bytep rp = row;
- size_t i;
- size_t istop = row_info->rowbytes;
-
- for (i = 0; i < istop; i += 2)
- {
- *rp = (png_byte)(~(*rp));
- rp += 2;
- }
- }
-
-#ifdef PNG_16BIT_SUPPORTED
- else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA &&
- row_info->bit_depth == 16)
- {
- png_bytep rp = row;
- size_t i;
- size_t istop = row_info->rowbytes;
-
- for (i = 0; i < istop; i += 4)
- {
- *rp = (png_byte)(~(*rp));
- *(rp + 1) = (png_byte)(~(*(rp + 1)));
- rp += 4;
- }
- }
-#endif
-}
-#endif
-
-#ifdef PNG_16BIT_SUPPORTED
-#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED)
-/* Swaps byte order on 16-bit depth images */
-void /* PRIVATE */
-png_do_swap(png_row_infop row_info, png_bytep row)
-{
- png_debug(1, "in png_do_swap");
-
- if (row_info->bit_depth == 16)
- {
- png_bytep rp = row;
- png_uint_32 i;
- png_uint_32 istop= row_info->width * row_info->channels;
-
- for (i = 0; i < istop; i++, rp += 2)
- {
-#ifdef PNG_BUILTIN_BSWAP16_SUPPORTED
- /* Feature added to libpng-1.6.11 for testing purposes, not
- * enabled by default.
- */
- *(png_uint_16*)rp = __builtin_bswap16(*(png_uint_16*)rp);
-#else
- png_byte t = *rp;
- *rp = *(rp + 1);
- *(rp + 1) = t;
-#endif
- }
- }
-}
-#endif
-#endif
-
-#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED)
-static const png_byte onebppswaptable[256] = {
- 0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0,
- 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0,
- 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8,
- 0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8,
- 0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4,
- 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4,
- 0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC,
- 0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC,
- 0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2,
- 0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2,
- 0x0A, 0x8A, 0x4A, 0xCA, 0x2A, 0xAA, 0x6A, 0xEA,
- 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA,
- 0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6,
- 0x16, 0x96, 0x56, 0xD6, 0x36, 0xB6, 0x76, 0xF6,
- 0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE,
- 0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE,
- 0x01, 0x81, 0x41, 0xC1, 0x21, 0xA1, 0x61, 0xE1,
- 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1,
- 0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9,
- 0x19, 0x99, 0x59, 0xD9, 0x39, 0xB9, 0x79, 0xF9,
- 0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5,
- 0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5,
- 0x0D, 0x8D, 0x4D, 0xCD, 0x2D, 0xAD, 0x6D, 0xED,
- 0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD,
- 0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3,
- 0x13, 0x93, 0x53, 0xD3, 0x33, 0xB3, 0x73, 0xF3,
- 0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB,
- 0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB,
- 0x07, 0x87, 0x47, 0xC7, 0x27, 0xA7, 0x67, 0xE7,
- 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7,
- 0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF,
- 0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF
-};
-
-static const png_byte twobppswaptable[256] = {
- 0x00, 0x40, 0x80, 0xC0, 0x10, 0x50, 0x90, 0xD0,
- 0x20, 0x60, 0xA0, 0xE0, 0x30, 0x70, 0xB0, 0xF0,
- 0x04, 0x44, 0x84, 0xC4, 0x14, 0x54, 0x94, 0xD4,
- 0x24, 0x64, 0xA4, 0xE4, 0x34, 0x74, 0xB4, 0xF4,
- 0x08, 0x48, 0x88, 0xC8, 0x18, 0x58, 0x98, 0xD8,
- 0x28, 0x68, 0xA8, 0xE8, 0x38, 0x78, 0xB8, 0xF8,
- 0x0C, 0x4C, 0x8C, 0xCC, 0x1C, 0x5C, 0x9C, 0xDC,
- 0x2C, 0x6C, 0xAC, 0xEC, 0x3C, 0x7C, 0xBC, 0xFC,
- 0x01, 0x41, 0x81, 0xC1, 0x11, 0x51, 0x91, 0xD1,
- 0x21, 0x61, 0xA1, 0xE1, 0x31, 0x71, 0xB1, 0xF1,
- 0x05, 0x45, 0x85, 0xC5, 0x15, 0x55, 0x95, 0xD5,
- 0x25, 0x65, 0xA5, 0xE5, 0x35, 0x75, 0xB5, 0xF5,
- 0x09, 0x49, 0x89, 0xC9, 0x19, 0x59, 0x99, 0xD9,
- 0x29, 0x69, 0xA9, 0xE9, 0x39, 0x79, 0xB9, 0xF9,
- 0x0D, 0x4D, 0x8D, 0xCD, 0x1D, 0x5D, 0x9D, 0xDD,
- 0x2D, 0x6D, 0xAD, 0xED, 0x3D, 0x7D, 0xBD, 0xFD,
- 0x02, 0x42, 0x82, 0xC2, 0x12, 0x52, 0x92, 0xD2,
- 0x22, 0x62, 0xA2, 0xE2, 0x32, 0x72, 0xB2, 0xF2,
- 0x06, 0x46, 0x86, 0xC6, 0x16, 0x56, 0x96, 0xD6,
- 0x26, 0x66, 0xA6, 0xE6, 0x36, 0x76, 0xB6, 0xF6,
- 0x0A, 0x4A, 0x8A, 0xCA, 0x1A, 0x5A, 0x9A, 0xDA,
- 0x2A, 0x6A, 0xAA, 0xEA, 0x3A, 0x7A, 0xBA, 0xFA,
- 0x0E, 0x4E, 0x8E, 0xCE, 0x1E, 0x5E, 0x9E, 0xDE,
- 0x2E, 0x6E, 0xAE, 0xEE, 0x3E, 0x7E, 0xBE, 0xFE,
- 0x03, 0x43, 0x83, 0xC3, 0x13, 0x53, 0x93, 0xD3,
- 0x23, 0x63, 0xA3, 0xE3, 0x33, 0x73, 0xB3, 0xF3,
- 0x07, 0x47, 0x87, 0xC7, 0x17, 0x57, 0x97, 0xD7,
- 0x27, 0x67, 0xA7, 0xE7, 0x37, 0x77, 0xB7, 0xF7,
- 0x0B, 0x4B, 0x8B, 0xCB, 0x1B, 0x5B, 0x9B, 0xDB,
- 0x2B, 0x6B, 0xAB, 0xEB, 0x3B, 0x7B, 0xBB, 0xFB,
- 0x0F, 0x4F, 0x8F, 0xCF, 0x1F, 0x5F, 0x9F, 0xDF,
- 0x2F, 0x6F, 0xAF, 0xEF, 0x3F, 0x7F, 0xBF, 0xFF
-};
-
-static const png_byte fourbppswaptable[256] = {
- 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70,
- 0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0, 0xF0,
- 0x01, 0x11, 0x21, 0x31, 0x41, 0x51, 0x61, 0x71,
- 0x81, 0x91, 0xA1, 0xB1, 0xC1, 0xD1, 0xE1, 0xF1,
- 0x02, 0x12, 0x22, 0x32, 0x42, 0x52, 0x62, 0x72,
- 0x82, 0x92, 0xA2, 0xB2, 0xC2, 0xD2, 0xE2, 0xF2,
- 0x03, 0x13, 0x23, 0x33, 0x43, 0x53, 0x63, 0x73,
- 0x83, 0x93, 0xA3, 0xB3, 0xC3, 0xD3, 0xE3, 0xF3,
- 0x04, 0x14, 0x24, 0x34, 0x44, 0x54, 0x64, 0x74,
- 0x84, 0x94, 0xA4, 0xB4, 0xC4, 0xD4, 0xE4, 0xF4,
- 0x05, 0x15, 0x25, 0x35, 0x45, 0x55, 0x65, 0x75,
- 0x85, 0x95, 0xA5, 0xB5, 0xC5, 0xD5, 0xE5, 0xF5,
- 0x06, 0x16, 0x26, 0x36, 0x46, 0x56, 0x66, 0x76,
- 0x86, 0x96, 0xA6, 0xB6, 0xC6, 0xD6, 0xE6, 0xF6,
- 0x07, 0x17, 0x27, 0x37, 0x47, 0x57, 0x67, 0x77,
- 0x87, 0x97, 0xA7, 0xB7, 0xC7, 0xD7, 0xE7, 0xF7,
- 0x08, 0x18, 0x28, 0x38, 0x48, 0x58, 0x68, 0x78,
- 0x88, 0x98, 0xA8, 0xB8, 0xC8, 0xD8, 0xE8, 0xF8,
- 0x09, 0x19, 0x29, 0x39, 0x49, 0x59, 0x69, 0x79,
- 0x89, 0x99, 0xA9, 0xB9, 0xC9, 0xD9, 0xE9, 0xF9,
- 0x0A, 0x1A, 0x2A, 0x3A, 0x4A, 0x5A, 0x6A, 0x7A,
- 0x8A, 0x9A, 0xAA, 0xBA, 0xCA, 0xDA, 0xEA, 0xFA,
- 0x0B, 0x1B, 0x2B, 0x3B, 0x4B, 0x5B, 0x6B, 0x7B,
- 0x8B, 0x9B, 0xAB, 0xBB, 0xCB, 0xDB, 0xEB, 0xFB,
- 0x0C, 0x1C, 0x2C, 0x3C, 0x4C, 0x5C, 0x6C, 0x7C,
- 0x8C, 0x9C, 0xAC, 0xBC, 0xCC, 0xDC, 0xEC, 0xFC,
- 0x0D, 0x1D, 0x2D, 0x3D, 0x4D, 0x5D, 0x6D, 0x7D,
- 0x8D, 0x9D, 0xAD, 0xBD, 0xCD, 0xDD, 0xED, 0xFD,
- 0x0E, 0x1E, 0x2E, 0x3E, 0x4E, 0x5E, 0x6E, 0x7E,
- 0x8E, 0x9E, 0xAE, 0xBE, 0xCE, 0xDE, 0xEE, 0xFE,
- 0x0F, 0x1F, 0x2F, 0x3F, 0x4F, 0x5F, 0x6F, 0x7F,
- 0x8F, 0x9F, 0xAF, 0xBF, 0xCF, 0xDF, 0xEF, 0xFF
-};
-
-/* Swaps pixel packing order within bytes */
-void /* PRIVATE */
-png_do_packswap(png_row_infop row_info, png_bytep row)
-{
- png_debug(1, "in png_do_packswap");
-
- if (row_info->bit_depth < 8)
- {
- png_bytep rp;
- png_const_bytep end, table;
-
- end = row + row_info->rowbytes;
-
- if (row_info->bit_depth == 1)
- table = onebppswaptable;
-
- else if (row_info->bit_depth == 2)
- table = twobppswaptable;
-
- else if (row_info->bit_depth == 4)
- table = fourbppswaptable;
-
- else
- return;
-
- for (rp = row; rp < end; rp++)
- *rp = table[*rp];
- }
-}
-#endif /* PACKSWAP || WRITE_PACKSWAP */
-
-#if defined(PNG_WRITE_FILLER_SUPPORTED) || \
- defined(PNG_READ_STRIP_ALPHA_SUPPORTED)
-/* Remove a channel - this used to be 'png_do_strip_filler' but it used a
- * somewhat weird combination of flags to determine what to do. All the calls
- * to png_do_strip_filler are changed in 1.5.2 to call this instead with the
- * correct arguments.
- *
- * The routine isn't general - the channel must be the channel at the start or
- * end (not in the middle) of each pixel.
- */
-void /* PRIVATE */
-png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
-{
- png_bytep sp = row; /* source pointer */
- png_bytep dp = row; /* destination pointer */
- png_bytep ep = row + row_info->rowbytes; /* One beyond end of row */
-
- /* At the start sp will point to the first byte to copy and dp to where
- * it is copied to. ep always points just beyond the end of the row, so
- * the loop simply copies (channels-1) channels until sp reaches ep.
- *
- * at_start: 0 -- convert AG, XG, ARGB, XRGB, AAGG, XXGG, etc.
- * nonzero -- convert GA, GX, RGBA, RGBX, GGAA, RRGGBBXX, etc.
- */
-
- /* GA, GX, XG cases */
- if (row_info->channels == 2)
- {
- if (row_info->bit_depth == 8)
- {
- if (at_start != 0) /* Skip initial filler */
- ++sp;
- else /* Skip initial channel and, for sp, the filler */
- {
- sp += 2; ++dp;
- }
-
- /* For a 1 pixel wide image there is nothing to do */
- while (sp < ep)
- {
- *dp++ = *sp; sp += 2;
- }
-
- row_info->pixel_depth = 8;
- }
-
- else if (row_info->bit_depth == 16)
- {
- if (at_start != 0) /* Skip initial filler */
- sp += 2;
- else /* Skip initial channel and, for sp, the filler */
- {
- sp += 4; dp += 2;
- }
-
- while (sp < ep)
- {
- *dp++ = *sp++; *dp++ = *sp; sp += 3;
- }
-
- row_info->pixel_depth = 16;
- }
-
- else
- return; /* bad bit depth */
-
- row_info->channels = 1;
-
- /* Finally fix the color type if it records an alpha channel */
- if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- row_info->color_type = PNG_COLOR_TYPE_GRAY;
- }
-
- /* RGBA, RGBX, XRGB cases */
- else if (row_info->channels == 4)
- {
- if (row_info->bit_depth == 8)
- {
- if (at_start != 0) /* Skip initial filler */
- ++sp;
- else /* Skip initial channels and, for sp, the filler */
- {
- sp += 4; dp += 3;
- }
-
- /* Note that the loop adds 3 to dp and 4 to sp each time. */
- while (sp < ep)
- {
- *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp; sp += 2;
- }
-
- row_info->pixel_depth = 24;
- }
-
- else if (row_info->bit_depth == 16)
- {
- if (at_start != 0) /* Skip initial filler */
- sp += 2;
- else /* Skip initial channels and, for sp, the filler */
- {
- sp += 8; dp += 6;
- }
-
- while (sp < ep)
- {
- /* Copy 6 bytes, skip 2 */
- *dp++ = *sp++; *dp++ = *sp++;
- *dp++ = *sp++; *dp++ = *sp++;
- *dp++ = *sp++; *dp++ = *sp; sp += 3;
- }
-
- row_info->pixel_depth = 48;
- }
-
- else
- return; /* bad bit depth */
-
- row_info->channels = 3;
-
- /* Finally fix the color type if it records an alpha channel */
- if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- row_info->color_type = PNG_COLOR_TYPE_RGB;
- }
-
- else
- return; /* The filler channel has gone already */
-
- /* Fix the rowbytes value. */
- row_info->rowbytes = (size_t)(dp-row);
-}
-#endif
-
-#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED)
-/* Swaps red and blue bytes within a pixel */
-void /* PRIVATE */
-png_do_bgr(png_row_infop row_info, png_bytep row)
-{
- png_debug(1, "in png_do_bgr");
-
- if ((row_info->color_type & PNG_COLOR_MASK_COLOR) != 0)
- {
- png_uint_32 row_width = row_info->width;
- if (row_info->bit_depth == 8)
- {
- if (row_info->color_type == PNG_COLOR_TYPE_RGB)
- {
- png_bytep rp;
- png_uint_32 i;
-
- for (i = 0, rp = row; i < row_width; i++, rp += 3)
- {
- png_byte save = *rp;
- *rp = *(rp + 2);
- *(rp + 2) = save;
- }
- }
-
- else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- {
- png_bytep rp;
- png_uint_32 i;
-
- for (i = 0, rp = row; i < row_width; i++, rp += 4)
- {
- png_byte save = *rp;
- *rp = *(rp + 2);
- *(rp + 2) = save;
- }
- }
- }
-
-#ifdef PNG_16BIT_SUPPORTED
- else if (row_info->bit_depth == 16)
- {
- if (row_info->color_type == PNG_COLOR_TYPE_RGB)
- {
- png_bytep rp;
- png_uint_32 i;
-
- for (i = 0, rp = row; i < row_width; i++, rp += 6)
- {
- png_byte save = *rp;
- *rp = *(rp + 4);
- *(rp + 4) = save;
- save = *(rp + 1);
- *(rp + 1) = *(rp + 5);
- *(rp + 5) = save;
- }
- }
-
- else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- {
- png_bytep rp;
- png_uint_32 i;
-
- for (i = 0, rp = row; i < row_width; i++, rp += 8)
- {
- png_byte save = *rp;
- *rp = *(rp + 4);
- *(rp + 4) = save;
- save = *(rp + 1);
- *(rp + 1) = *(rp + 5);
- *(rp + 5) = save;
- }
- }
- }
-#endif
- }
-}
-#endif /* READ_BGR || WRITE_BGR */
-
-#if defined(PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED) || \
- defined(PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED)
-/* Added at libpng-1.5.10 */
-void /* PRIVATE */
-png_do_check_palette_indexes(png_structrp png_ptr, png_row_infop row_info)
-{
- if (png_ptr->num_palette < (1 << row_info->bit_depth) &&
- png_ptr->num_palette > 0) /* num_palette can be 0 in MNG files */
- {
- /* Calculations moved outside switch in an attempt to stop different
- * compiler warnings. 'padding' is in *bits* within the last byte, it is
- * an 'int' because pixel_depth becomes an 'int' in the expression below,
- * and this calculation is used because it avoids warnings that other
- * forms produced on either GCC or MSVC.
- */
- int padding = PNG_PADBITS(row_info->pixel_depth, row_info->width);
- png_bytep rp = png_ptr->row_buf + row_info->rowbytes - 1;
-
- switch (row_info->bit_depth)
- {
- case 1:
- {
- /* in this case, all bytes must be 0 so we don't need
- * to unpack the pixels except for the rightmost one.
- */
- for (; rp > png_ptr->row_buf; rp--)
- {
- if ((*rp >> padding) != 0)
- png_ptr->num_palette_max = 1;
- padding = 0;
- }
-
- break;
- }
-
- case 2:
- {
- for (; rp > png_ptr->row_buf; rp--)
- {
- int i = ((*rp >> padding) & 0x03);
-
- if (i > png_ptr->num_palette_max)
- png_ptr->num_palette_max = i;
-
- i = (((*rp >> padding) >> 2) & 0x03);
-
- if (i > png_ptr->num_palette_max)
- png_ptr->num_palette_max = i;
-
- i = (((*rp >> padding) >> 4) & 0x03);
-
- if (i > png_ptr->num_palette_max)
- png_ptr->num_palette_max = i;
-
- i = (((*rp >> padding) >> 6) & 0x03);
-
- if (i > png_ptr->num_palette_max)
- png_ptr->num_palette_max = i;
-
- padding = 0;
- }
-
- break;
- }
-
- case 4:
- {
- for (; rp > png_ptr->row_buf; rp--)
- {
- int i = ((*rp >> padding) & 0x0f);
-
- if (i > png_ptr->num_palette_max)
- png_ptr->num_palette_max = i;
-
- i = (((*rp >> padding) >> 4) & 0x0f);
-
- if (i > png_ptr->num_palette_max)
- png_ptr->num_palette_max = i;
-
- padding = 0;
- }
-
- break;
- }
-
- case 8:
- {
- for (; rp > png_ptr->row_buf; rp--)
- {
- if (*rp > png_ptr->num_palette_max)
- png_ptr->num_palette_max = (int) *rp;
- }
-
- break;
- }
-
- default:
- break;
- }
- }
-}
-#endif /* CHECK_FOR_INVALID_INDEX */
-
-#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
- defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
-#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED
-void PNGAPI
-png_set_user_transform_info(png_structrp png_ptr, png_voidp
- user_transform_ptr, int user_transform_depth, int user_transform_channels)
-{
- png_debug(1, "in png_set_user_transform_info");
-
- if (png_ptr == NULL)
- return;
-
-#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
- if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 &&
- (png_ptr->flags & PNG_FLAG_ROW_INIT) != 0)
- {
- png_app_error(png_ptr,
- "info change after png_start_read_image or png_read_update_info");
- return;
- }
-#endif
-
- png_ptr->user_transform_ptr = user_transform_ptr;
- png_ptr->user_transform_depth = (png_byte)user_transform_depth;
- png_ptr->user_transform_channels = (png_byte)user_transform_channels;
-}
-#endif
-
-/* This function returns a pointer to the user_transform_ptr associated with
- * the user transform functions. The application should free any memory
- * associated with this pointer before png_write_destroy and png_read_destroy
- * are called.
- */
-#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED
-png_voidp PNGAPI
-png_get_user_transform_ptr(png_const_structrp png_ptr)
-{
- if (png_ptr == NULL)
- return (NULL);
-
- return png_ptr->user_transform_ptr;
-}
-#endif
-
-#ifdef PNG_USER_TRANSFORM_INFO_SUPPORTED
-png_uint_32 PNGAPI
-png_get_current_row_number(png_const_structrp png_ptr)
-{
- /* See the comments in png.h - this is the sub-image row when reading an
- * interlaced image.
- */
- if (png_ptr != NULL)
- return png_ptr->row_number;
-
- return PNG_UINT_32_MAX; /* help the app not to fail silently */
-}
-
-png_byte PNGAPI
-png_get_current_pass_number(png_const_structrp png_ptr)
-{
- if (png_ptr != NULL)
- return png_ptr->pass;
- return 8; /* invalid */
-}
-#endif /* USER_TRANSFORM_INFO */
-#endif /* READ_USER_TRANSFORM || WRITE_USER_TRANSFORM */
-#endif /* READ || WRITE */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngtrans.lo b/3rdparty/libpng/libpng-1.6.37/pngtrans.lo
deleted file mode 100644
index 5d9f1bb..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngtrans.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# pngtrans.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/pngtrans.o'
-
-# Name of the non-PIC object
-non_pic_object='pngtrans.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/pngtrans.o b/3rdparty/libpng/libpng-1.6.37/pngtrans.o
deleted file mode 100644
index 958577a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngtrans.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngunknown b/3rdparty/libpng/libpng-1.6.37/pngunknown
deleted file mode 100755
index ac1ace6..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngunknown
+++ /dev/null
@@ -1,210 +0,0 @@
-#! /bin/bash
-
-# pngunknown - temporary wrapper script for .libs/pngunknown
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# The pngunknown program cannot be directly executed until all the libtool
-# libraries that it depends on are installed.
-#
-# This wrapper script should never be moved out of the build directory.
-# If it is, it will not operate correctly.
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
-
-# Be Bourne compatible
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
-else
- case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-relink_command=""
-
-# This environment variable determines our operation mode.
-if test "$libtool_install_magic" = "%%%MAGIC variable%%%"; then
- # install mode needs the following variables:
- generated_by_libtool_version='2.4.6'
- notinst_deplibs=' libpng16.la'
-else
- # When we are sourced in execute mode, $file and $ECHO are already set.
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- file="$0"
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
- eval 'cat <<_LTECHO_EOF
-$1
-_LTECHO_EOF'
-}
- ECHO="printf %s\\n"
- fi
-
-# Very basic option parsing. These options are (a) specific to
-# the libtool wrapper, (b) are identical between the wrapper
-# /script/ and the wrapper /executable/ that is used only on
-# windows platforms, and (c) all begin with the string --lt-
-# (application programs are unlikely to have options that match
-# this pattern).
-#
-# There are only two supported options: --lt-debug and
-# --lt-dump-script. There is, deliberately, no --lt-help.
-#
-# The first argument to this parsing function should be the
-# script's ./libtool value, followed by no.
-lt_option_debug=
-func_parse_lt_options ()
-{
- lt_script_arg0=$0
- shift
- for lt_opt
- do
- case "$lt_opt" in
- --lt-debug) lt_option_debug=1 ;;
- --lt-dump-script)
- lt_dump_D=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%/[^/]*$%%'`
- test "X$lt_dump_D" = "X$lt_script_arg0" && lt_dump_D=.
- lt_dump_F=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%^.*/%%'`
- cat "$lt_dump_D/$lt_dump_F"
- exit 0
- ;;
- --lt-*)
- $ECHO "Unrecognized --lt- option: '$lt_opt'" 1>&2
- exit 1
- ;;
- esac
- done
-
- # Print the debug banner immediately:
- if test -n "$lt_option_debug"; then
- echo "pngunknown:pngunknown:$LINENO: libtool wrapper (GNU libtool) 2.4.6" 1>&2
- fi
-}
-
-# Used when --lt-debug. Prints its arguments to stdout
-# (redirection is the responsibility of the caller)
-func_lt_dump_args ()
-{
- lt_dump_args_N=1;
- for lt_arg
- do
- $ECHO "pngunknown:pngunknown:$LINENO: newargv[$lt_dump_args_N]: $lt_arg"
- lt_dump_args_N=`expr $lt_dump_args_N + 1`
- done
-}
-
-# Core function for launching the target application
-func_exec_program_core ()
-{
-
- if test -n "$lt_option_debug"; then
- $ECHO "pngunknown:pngunknown:$LINENO: newargv[0]: $progdir/$program" 1>&2
- func_lt_dump_args ${1+"$@"} 1>&2
- fi
- exec "$progdir/$program" ${1+"$@"}
-
- $ECHO "$0: cannot exec $program $*" 1>&2
- exit 1
-}
-
-# A function to encapsulate launching the target application
-# Strips options in the --lt-* namespace from $@ and
-# launches target application with the remaining arguments.
-func_exec_program ()
-{
- case " $* " in
- *\ --lt-*)
- for lt_wr_arg
- do
- case $lt_wr_arg in
- --lt-*) ;;
- *) set x "$@" "$lt_wr_arg"; shift;;
- esac
- shift
- done ;;
- esac
- func_exec_program_core ${1+"$@"}
-}
-
- # Parse options
- func_parse_lt_options "$0" ${1+"$@"}
-
- # Find the directory that this script lives in.
- thisdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
- test "x$thisdir" = "x$file" && thisdir=.
-
- # Follow symbolic links until we get to the real thisdir.
- file=`ls -ld "$file" | /bin/sed -n 's/.*-> //p'`
- while test -n "$file"; do
- destdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
-
- # If there was a directory component, then change thisdir.
- if test "x$destdir" != "x$file"; then
- case "$destdir" in
- [\\/]* | [A-Za-z]:[\\/]*) thisdir="$destdir" ;;
- *) thisdir="$thisdir/$destdir" ;;
- esac
- fi
-
- file=`$ECHO "$file" | /bin/sed 's%^.*/%%'`
- file=`ls -ld "$thisdir/$file" | /bin/sed -n 's/.*-> //p'`
- done
-
- # Usually 'no', except on cygwin/mingw when embedded into
- # the cwrapper.
- WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=no
- if test "$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR" = "yes"; then
- # special case for '.'
- if test "$thisdir" = "."; then
- thisdir=`pwd`
- fi
- # remove .libs from thisdir
- case "$thisdir" in
- *[\\/].libs ) thisdir=`$ECHO "$thisdir" | /bin/sed 's%[\\/][^\\/]*$%%'` ;;
- .libs ) thisdir=. ;;
- esac
- fi
-
- # Try to get the absolute directory name.
- absdir=`cd "$thisdir" && pwd`
- test -n "$absdir" && thisdir="$absdir"
-
- program='pngunknown'
- progdir="$thisdir/.libs"
-
-
- if test -f "$progdir/$program"; then
- # Add our own library path to LD_LIBRARY_PATH
- LD_LIBRARY_PATH="/home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/.libs:$LD_LIBRARY_PATH"
-
- # Some systems cannot cope with colon-terminated LD_LIBRARY_PATH
- # The second colon is a workaround for a bug in BeOS R4 sed
- LD_LIBRARY_PATH=`$ECHO "$LD_LIBRARY_PATH" | /bin/sed 's/::*$//'`
-
- export LD_LIBRARY_PATH
-
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- # Run the actual program with our arguments.
- func_exec_program ${1+"$@"}
- fi
- else
- # The program doesn't exist.
- $ECHO "$0: error: '$progdir/$program' does not exist" 1>&2
- $ECHO "This script is just a wrapper for $program." 1>&2
- $ECHO "See the libtool documentation for more information." 1>&2
- exit 1
- fi
-fi
diff --git a/3rdparty/libpng/libpng-1.6.37/pngusr.dfa b/3rdparty/libpng/libpng-1.6.37/pngusr.dfa
deleted file mode 100644
index 83067c3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngusr.dfa
+++ /dev/null
@@ -1,14 +0,0 @@
-# pngusr.dfa
-#
-# Build time configuration of libpng
-#
-# Enter build configuration options in this file
-#
-# Security settings: by default these limits are unset, you can change them
-# here by entering the appropriate values as #defines preceded by '@' (to cause,
-# them to be passed through to the build of pnglibconf.h), for example:
-#
-# @# define PNG_USER_WIDTH_MAX 65535
-# @# define PNG_USER_HEIGHT_MAX 65535
-# @# define PNG_USER_CHUNK_CACHE_MAX 256
-# @# define PNG_USER_CHUNK_MALLOC_MAX 640000
diff --git a/3rdparty/libpng/libpng-1.6.37/pngvalid b/3rdparty/libpng/libpng-1.6.37/pngvalid
deleted file mode 100755
index 42df6b2..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngvalid
+++ /dev/null
@@ -1,210 +0,0 @@
-#! /bin/bash
-
-# pngvalid - temporary wrapper script for .libs/pngvalid
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# The pngvalid program cannot be directly executed until all the libtool
-# libraries that it depends on are installed.
-#
-# This wrapper script should never be moved out of the build directory.
-# If it is, it will not operate correctly.
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
-
-# Be Bourne compatible
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
-else
- case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-relink_command=""
-
-# This environment variable determines our operation mode.
-if test "$libtool_install_magic" = "%%%MAGIC variable%%%"; then
- # install mode needs the following variables:
- generated_by_libtool_version='2.4.6'
- notinst_deplibs=' libpng16.la'
-else
- # When we are sourced in execute mode, $file and $ECHO are already set.
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- file="$0"
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
- eval 'cat <<_LTECHO_EOF
-$1
-_LTECHO_EOF'
-}
- ECHO="printf %s\\n"
- fi
-
-# Very basic option parsing. These options are (a) specific to
-# the libtool wrapper, (b) are identical between the wrapper
-# /script/ and the wrapper /executable/ that is used only on
-# windows platforms, and (c) all begin with the string --lt-
-# (application programs are unlikely to have options that match
-# this pattern).
-#
-# There are only two supported options: --lt-debug and
-# --lt-dump-script. There is, deliberately, no --lt-help.
-#
-# The first argument to this parsing function should be the
-# script's ./libtool value, followed by no.
-lt_option_debug=
-func_parse_lt_options ()
-{
- lt_script_arg0=$0
- shift
- for lt_opt
- do
- case "$lt_opt" in
- --lt-debug) lt_option_debug=1 ;;
- --lt-dump-script)
- lt_dump_D=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%/[^/]*$%%'`
- test "X$lt_dump_D" = "X$lt_script_arg0" && lt_dump_D=.
- lt_dump_F=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%^.*/%%'`
- cat "$lt_dump_D/$lt_dump_F"
- exit 0
- ;;
- --lt-*)
- $ECHO "Unrecognized --lt- option: '$lt_opt'" 1>&2
- exit 1
- ;;
- esac
- done
-
- # Print the debug banner immediately:
- if test -n "$lt_option_debug"; then
- echo "pngvalid:pngvalid:$LINENO: libtool wrapper (GNU libtool) 2.4.6" 1>&2
- fi
-}
-
-# Used when --lt-debug. Prints its arguments to stdout
-# (redirection is the responsibility of the caller)
-func_lt_dump_args ()
-{
- lt_dump_args_N=1;
- for lt_arg
- do
- $ECHO "pngvalid:pngvalid:$LINENO: newargv[$lt_dump_args_N]: $lt_arg"
- lt_dump_args_N=`expr $lt_dump_args_N + 1`
- done
-}
-
-# Core function for launching the target application
-func_exec_program_core ()
-{
-
- if test -n "$lt_option_debug"; then
- $ECHO "pngvalid:pngvalid:$LINENO: newargv[0]: $progdir/$program" 1>&2
- func_lt_dump_args ${1+"$@"} 1>&2
- fi
- exec "$progdir/$program" ${1+"$@"}
-
- $ECHO "$0: cannot exec $program $*" 1>&2
- exit 1
-}
-
-# A function to encapsulate launching the target application
-# Strips options in the --lt-* namespace from $@ and
-# launches target application with the remaining arguments.
-func_exec_program ()
-{
- case " $* " in
- *\ --lt-*)
- for lt_wr_arg
- do
- case $lt_wr_arg in
- --lt-*) ;;
- *) set x "$@" "$lt_wr_arg"; shift;;
- esac
- shift
- done ;;
- esac
- func_exec_program_core ${1+"$@"}
-}
-
- # Parse options
- func_parse_lt_options "$0" ${1+"$@"}
-
- # Find the directory that this script lives in.
- thisdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
- test "x$thisdir" = "x$file" && thisdir=.
-
- # Follow symbolic links until we get to the real thisdir.
- file=`ls -ld "$file" | /bin/sed -n 's/.*-> //p'`
- while test -n "$file"; do
- destdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
-
- # If there was a directory component, then change thisdir.
- if test "x$destdir" != "x$file"; then
- case "$destdir" in
- [\\/]* | [A-Za-z]:[\\/]*) thisdir="$destdir" ;;
- *) thisdir="$thisdir/$destdir" ;;
- esac
- fi
-
- file=`$ECHO "$file" | /bin/sed 's%^.*/%%'`
- file=`ls -ld "$thisdir/$file" | /bin/sed -n 's/.*-> //p'`
- done
-
- # Usually 'no', except on cygwin/mingw when embedded into
- # the cwrapper.
- WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=no
- if test "$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR" = "yes"; then
- # special case for '.'
- if test "$thisdir" = "."; then
- thisdir=`pwd`
- fi
- # remove .libs from thisdir
- case "$thisdir" in
- *[\\/].libs ) thisdir=`$ECHO "$thisdir" | /bin/sed 's%[\\/][^\\/]*$%%'` ;;
- .libs ) thisdir=. ;;
- esac
- fi
-
- # Try to get the absolute directory name.
- absdir=`cd "$thisdir" && pwd`
- test -n "$absdir" && thisdir="$absdir"
-
- program='pngvalid'
- progdir="$thisdir/.libs"
-
-
- if test -f "$progdir/$program"; then
- # Add our own library path to LD_LIBRARY_PATH
- LD_LIBRARY_PATH="/home/guowenxue/fl2440/3rdparty/libpng/libpng-1.6.37/.libs:$LD_LIBRARY_PATH"
-
- # Some systems cannot cope with colon-terminated LD_LIBRARY_PATH
- # The second colon is a workaround for a bug in BeOS R4 sed
- LD_LIBRARY_PATH=`$ECHO "$LD_LIBRARY_PATH" | /bin/sed 's/::*$//'`
-
- export LD_LIBRARY_PATH
-
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- # Run the actual program with our arguments.
- func_exec_program ${1+"$@"}
- fi
- else
- # The program doesn't exist.
- $ECHO "$0: error: '$progdir/$program' does not exist" 1>&2
- $ECHO "This script is just a wrapper for $program." 1>&2
- $ECHO "See the libtool documentation for more information." 1>&2
- exit 1
- fi
-fi
diff --git a/3rdparty/libpng/libpng-1.6.37/pngwio.c b/3rdparty/libpng/libpng-1.6.37/pngwio.c
deleted file mode 100644
index 10e919d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngwio.c
+++ /dev/null
@@ -1,168 +0,0 @@
-
-/* pngwio.c - functions for data output
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2014,2016,2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- *
- * This file provides a location for all output. Users who need
- * special handling are expected to write functions that have the same
- * arguments as these and perform similar functions, but that possibly
- * use different output methods. Note that you shouldn't change these
- * functions, but rather write replacement functions and then change
- * them at run time with png_set_write_fn(...).
- */
-
-#include "pngpriv.h"
-
-#ifdef PNG_WRITE_SUPPORTED
-
-/* Write the data to whatever output you are using. The default routine
- * writes to a file pointer. Note that this routine sometimes gets called
- * with very small lengths, so you should implement some kind of simple
- * buffering if you are using unbuffered writes. This should never be asked
- * to write more than 64K on a 16-bit machine.
- */
-
-void /* PRIVATE */
-png_write_data(png_structrp png_ptr, png_const_bytep data, size_t length)
-{
- /* NOTE: write_data_fn must not change the buffer! */
- if (png_ptr->write_data_fn != NULL )
- (*(png_ptr->write_data_fn))(png_ptr, png_constcast(png_bytep,data),
- length);
-
- else
- png_error(png_ptr, "Call to NULL write function");
-}
-
-#ifdef PNG_STDIO_SUPPORTED
-/* This is the function that does the actual writing of data. If you are
- * not writing to a standard C stream, you should create a replacement
- * write_data function and use it at run time with png_set_write_fn(), rather
- * than changing the library.
- */
-void PNGCBAPI
-png_default_write_data(png_structp png_ptr, png_bytep data, size_t length)
-{
- size_t check;
-
- if (png_ptr == NULL)
- return;
-
- check = fwrite(data, 1, length, (png_FILE_p)(png_ptr->io_ptr));
-
- if (check != length)
- png_error(png_ptr, "Write Error");
-}
-#endif
-
-/* This function is called to output any data pending writing (normally
- * to disk). After png_flush is called, there should be no data pending
- * writing in any buffers.
- */
-#ifdef PNG_WRITE_FLUSH_SUPPORTED
-void /* PRIVATE */
-png_flush(png_structrp png_ptr)
-{
- if (png_ptr->output_flush_fn != NULL)
- (*(png_ptr->output_flush_fn))(png_ptr);
-}
-
-# ifdef PNG_STDIO_SUPPORTED
-void PNGCBAPI
-png_default_flush(png_structp png_ptr)
-{
- png_FILE_p io_ptr;
-
- if (png_ptr == NULL)
- return;
-
- io_ptr = png_voidcast(png_FILE_p, (png_ptr->io_ptr));
- fflush(io_ptr);
-}
-# endif
-#endif
-
-/* This function allows the application to supply new output functions for
- * libpng if standard C streams aren't being used.
- *
- * This function takes as its arguments:
- * png_ptr - pointer to a png output data structure
- * io_ptr - pointer to user supplied structure containing info about
- * the output functions. May be NULL.
- * write_data_fn - pointer to a new output function that takes as its
- * arguments a pointer to a png_struct, a pointer to
- * data to be written, and a 32-bit unsigned int that is
- * the number of bytes to be written. The new write
- * function should call png_error(png_ptr, "Error msg")
- * to exit and output any fatal error messages. May be
- * NULL, in which case libpng's default function will
- * be used.
- * flush_data_fn - pointer to a new flush function that takes as its
- * arguments a pointer to a png_struct. After a call to
- * the flush function, there should be no data in any buffers
- * or pending transmission. If the output method doesn't do
- * any buffering of output, a function prototype must still be
- * supplied although it doesn't have to do anything. If
- * PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile
- * time, output_flush_fn will be ignored, although it must be
- * supplied for compatibility. May be NULL, in which case
- * libpng's default function will be used, if
- * PNG_WRITE_FLUSH_SUPPORTED is defined. This is not
- * a good idea if io_ptr does not point to a standard
- * *FILE structure.
- */
-void PNGAPI
-png_set_write_fn(png_structrp png_ptr, png_voidp io_ptr,
- png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn)
-{
- if (png_ptr == NULL)
- return;
-
- png_ptr->io_ptr = io_ptr;
-
-#ifdef PNG_STDIO_SUPPORTED
- if (write_data_fn != NULL)
- png_ptr->write_data_fn = write_data_fn;
-
- else
- png_ptr->write_data_fn = png_default_write_data;
-#else
- png_ptr->write_data_fn = write_data_fn;
-#endif
-
-#ifdef PNG_WRITE_FLUSH_SUPPORTED
-# ifdef PNG_STDIO_SUPPORTED
-
- if (output_flush_fn != NULL)
- png_ptr->output_flush_fn = output_flush_fn;
-
- else
- png_ptr->output_flush_fn = png_default_flush;
-
-# else
- png_ptr->output_flush_fn = output_flush_fn;
-# endif
-#else
- PNG_UNUSED(output_flush_fn)
-#endif /* WRITE_FLUSH */
-
-#ifdef PNG_READ_SUPPORTED
- /* It is an error to read while writing a png file */
- if (png_ptr->read_data_fn != NULL)
- {
- png_ptr->read_data_fn = NULL;
-
- png_warning(png_ptr,
- "Can't set both read_data_fn and write_data_fn in the"
- " same structure");
- }
-#endif
-}
-#endif /* WRITE */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngwio.lo b/3rdparty/libpng/libpng-1.6.37/pngwio.lo
deleted file mode 100644
index bda5885..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngwio.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# pngwio.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/pngwio.o'
-
-# Name of the non-PIC object
-non_pic_object='pngwio.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/pngwio.o b/3rdparty/libpng/libpng-1.6.37/pngwio.o
deleted file mode 100644
index 603b59f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngwio.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngwrite.c b/3rdparty/libpng/libpng-1.6.37/pngwrite.c
deleted file mode 100644
index 59377a4..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngwrite.c
+++ /dev/null
@@ -1,2395 +0,0 @@
-
-/* pngwrite.c - general routines to write a PNG file
- *
- * Copyright (c) 2018-2019 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#include "pngpriv.h"
-#ifdef PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED
-# include <errno.h>
-#endif /* SIMPLIFIED_WRITE_STDIO */
-
-#ifdef PNG_WRITE_SUPPORTED
-
-#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
-/* Write out all the unknown chunks for the current given location */
-static void
-write_unknown_chunks(png_structrp png_ptr, png_const_inforp info_ptr,
- unsigned int where)
-{
- if (info_ptr->unknown_chunks_num != 0)
- {
- png_const_unknown_chunkp up;
-
- png_debug(5, "writing extra chunks");
-
- for (up = info_ptr->unknown_chunks;
- up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num;
- ++up)
- if ((up->location & where) != 0)
- {
- /* If per-chunk unknown chunk handling is enabled use it, otherwise
- * just write the chunks the application has set.
- */
-#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
- int keep = png_handle_as_unknown(png_ptr, up->name);
-
- /* NOTE: this code is radically different from the read side in the
- * matter of handling an ancillary unknown chunk. In the read side
- * the default behavior is to discard it, in the code below the default
- * behavior is to write it. Critical chunks are, however, only
- * written if explicitly listed or if the default is set to write all
- * unknown chunks.
- *
- * The default handling is also slightly weird - it is not possible to
- * stop the writing of all unsafe-to-copy chunks!
- *
- * TODO: REVIEW: this would seem to be a bug.
- */
- if (keep != PNG_HANDLE_CHUNK_NEVER &&
- ((up->name[3] & 0x20) /* safe-to-copy overrides everything */ ||
- keep == PNG_HANDLE_CHUNK_ALWAYS ||
- (keep == PNG_HANDLE_CHUNK_AS_DEFAULT &&
- png_ptr->unknown_default == PNG_HANDLE_CHUNK_ALWAYS)))
-#endif
- {
- /* TODO: review, what is wrong with a zero length unknown chunk? */
- if (up->size == 0)
- png_warning(png_ptr, "Writing zero-length unknown chunk");
-
- png_write_chunk(png_ptr, up->name, up->data, up->size);
- }
- }
- }
-}
-#endif /* WRITE_UNKNOWN_CHUNKS */
-
-/* Writes all the PNG information. This is the suggested way to use the
- * library. If you have a new chunk to add, make a function to write it,
- * and put it in the correct location here. If you want the chunk written
- * after the image data, put it in png_write_end(). I strongly encourage
- * you to supply a PNG_INFO_ flag, and check info_ptr->valid before writing
- * the chunk, as that will keep the code from breaking if you want to just
- * write a plain PNG file. If you have long comments, I suggest writing
- * them in png_write_end(), and compressing them.
- */
-void PNGAPI
-png_write_info_before_PLTE(png_structrp png_ptr, png_const_inforp info_ptr)
-{
- png_debug(1, "in png_write_info_before_PLTE");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- if ((png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE) == 0)
- {
- /* Write PNG signature */
- png_write_sig(png_ptr);
-
-#ifdef PNG_MNG_FEATURES_SUPPORTED
- if ((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) != 0 && \
- png_ptr->mng_features_permitted != 0)
- {
- png_warning(png_ptr,
- "MNG features are not allowed in a PNG datastream");
- png_ptr->mng_features_permitted = 0;
- }
-#endif
-
- /* Write IHDR information. */
- png_write_IHDR(png_ptr, info_ptr->width, info_ptr->height,
- info_ptr->bit_depth, info_ptr->color_type, info_ptr->compression_type,
- info_ptr->filter_type,
-#ifdef PNG_WRITE_INTERLACING_SUPPORTED
- info_ptr->interlace_type
-#else
- 0
-#endif
- );
-
- /* The rest of these check to see if the valid field has the appropriate
- * flag set, and if it does, writes the chunk.
- *
- * 1.6.0: COLORSPACE support controls the writing of these chunks too, and
- * the chunks will be written if the WRITE routine is there and
- * information * is available in the COLORSPACE. (See
- * png_colorspace_sync_info in png.c for where the valid flags get set.)
- *
- * Under certain circumstances the colorspace can be invalidated without
- * syncing the info_struct 'valid' flags; this happens if libpng detects
- * an error and calls png_error while the color space is being set, yet
- * the application continues writing the PNG. So check the 'invalid'
- * flag here too.
- */
-#ifdef PNG_GAMMA_SUPPORTED
-# ifdef PNG_WRITE_gAMA_SUPPORTED
- if ((info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) == 0 &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_FROM_gAMA) != 0 &&
- (info_ptr->valid & PNG_INFO_gAMA) != 0)
- png_write_gAMA_fixed(png_ptr, info_ptr->colorspace.gamma);
-# endif
-#endif
-
-#ifdef PNG_COLORSPACE_SUPPORTED
- /* Write only one of sRGB or an ICC profile. If a profile was supplied
- * and it matches one of the known sRGB ones issue a warning.
- */
-# ifdef PNG_WRITE_iCCP_SUPPORTED
- if ((info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) == 0 &&
- (info_ptr->valid & PNG_INFO_iCCP) != 0)
- {
-# ifdef PNG_WRITE_sRGB_SUPPORTED
- if ((info_ptr->valid & PNG_INFO_sRGB) != 0)
- png_app_warning(png_ptr,
- "profile matches sRGB but writing iCCP instead");
-# endif
-
- png_write_iCCP(png_ptr, info_ptr->iccp_name,
- info_ptr->iccp_profile);
- }
-# ifdef PNG_WRITE_sRGB_SUPPORTED
- else
-# endif
-# endif
-
-# ifdef PNG_WRITE_sRGB_SUPPORTED
- if ((info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) == 0 &&
- (info_ptr->valid & PNG_INFO_sRGB) != 0)
- png_write_sRGB(png_ptr, info_ptr->colorspace.rendering_intent);
-# endif /* WRITE_sRGB */
-#endif /* COLORSPACE */
-
-#ifdef PNG_WRITE_sBIT_SUPPORTED
- if ((info_ptr->valid & PNG_INFO_sBIT) != 0)
- png_write_sBIT(png_ptr, &(info_ptr->sig_bit), info_ptr->color_type);
-#endif
-
-#ifdef PNG_COLORSPACE_SUPPORTED
-# ifdef PNG_WRITE_cHRM_SUPPORTED
- if ((info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) == 0 &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_FROM_cHRM) != 0 &&
- (info_ptr->valid & PNG_INFO_cHRM) != 0)
- png_write_cHRM_fixed(png_ptr, &info_ptr->colorspace.end_points_xy);
-# endif
-#endif
-
-#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
- write_unknown_chunks(png_ptr, info_ptr, PNG_HAVE_IHDR);
-#endif
-
- png_ptr->mode |= PNG_WROTE_INFO_BEFORE_PLTE;
- }
-}
-
-void PNGAPI
-png_write_info(png_structrp png_ptr, png_const_inforp info_ptr)
-{
-#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_sPLT_SUPPORTED)
- int i;
-#endif
-
- png_debug(1, "in png_write_info");
-
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- png_write_info_before_PLTE(png_ptr, info_ptr);
-
- if ((info_ptr->valid & PNG_INFO_PLTE) != 0)
- png_write_PLTE(png_ptr, info_ptr->palette,
- (png_uint_32)info_ptr->num_palette);
-
- else if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- png_error(png_ptr, "Valid palette required for paletted images");
-
-#ifdef PNG_WRITE_tRNS_SUPPORTED
- if ((info_ptr->valid & PNG_INFO_tRNS) !=0)
- {
-#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED
- /* Invert the alpha channel (in tRNS) */
- if ((png_ptr->transformations & PNG_INVERT_ALPHA) != 0 &&
- info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- {
- int j, jend;
-
- jend = info_ptr->num_trans;
- if (jend > PNG_MAX_PALETTE_LENGTH)
- jend = PNG_MAX_PALETTE_LENGTH;
-
- for (j = 0; j<jend; ++j)
- info_ptr->trans_alpha[j] =
- (png_byte)(255 - info_ptr->trans_alpha[j]);
- }
-#endif
- png_write_tRNS(png_ptr, info_ptr->trans_alpha, &(info_ptr->trans_color),
- info_ptr->num_trans, info_ptr->color_type);
- }
-#endif
-#ifdef PNG_WRITE_bKGD_SUPPORTED
- if ((info_ptr->valid & PNG_INFO_bKGD) != 0)
- png_write_bKGD(png_ptr, &(info_ptr->background), info_ptr->color_type);
-#endif
-
-#ifdef PNG_WRITE_eXIf_SUPPORTED
- if ((info_ptr->valid & PNG_INFO_eXIf) != 0)
- png_write_eXIf(png_ptr, info_ptr->exif, info_ptr->num_exif);
-#endif
-
-#ifdef PNG_WRITE_hIST_SUPPORTED
- if ((info_ptr->valid & PNG_INFO_hIST) != 0)
- png_write_hIST(png_ptr, info_ptr->hist, info_ptr->num_palette);
-#endif
-
-#ifdef PNG_WRITE_oFFs_SUPPORTED
- if ((info_ptr->valid & PNG_INFO_oFFs) != 0)
- png_write_oFFs(png_ptr, info_ptr->x_offset, info_ptr->y_offset,
- info_ptr->offset_unit_type);
-#endif
-
-#ifdef PNG_WRITE_pCAL_SUPPORTED
- if ((info_ptr->valid & PNG_INFO_pCAL) != 0)
- png_write_pCAL(png_ptr, info_ptr->pcal_purpose, info_ptr->pcal_X0,
- info_ptr->pcal_X1, info_ptr->pcal_type, info_ptr->pcal_nparams,
- info_ptr->pcal_units, info_ptr->pcal_params);
-#endif
-
-#ifdef PNG_WRITE_sCAL_SUPPORTED
- if ((info_ptr->valid & PNG_INFO_sCAL) != 0)
- png_write_sCAL_s(png_ptr, (int)info_ptr->scal_unit,
- info_ptr->scal_s_width, info_ptr->scal_s_height);
-#endif /* sCAL */
-
-#ifdef PNG_WRITE_pHYs_SUPPORTED
- if ((info_ptr->valid & PNG_INFO_pHYs) != 0)
- png_write_pHYs(png_ptr, info_ptr->x_pixels_per_unit,
- info_ptr->y_pixels_per_unit, info_ptr->phys_unit_type);
-#endif /* pHYs */
-
-#ifdef PNG_WRITE_tIME_SUPPORTED
- if ((info_ptr->valid & PNG_INFO_tIME) != 0)
- {
- png_write_tIME(png_ptr, &(info_ptr->mod_time));
- png_ptr->mode |= PNG_WROTE_tIME;
- }
-#endif /* tIME */
-
-#ifdef PNG_WRITE_sPLT_SUPPORTED
- if ((info_ptr->valid & PNG_INFO_sPLT) != 0)
- for (i = 0; i < (int)info_ptr->splt_palettes_num; i++)
- png_write_sPLT(png_ptr, info_ptr->splt_palettes + i);
-#endif /* sPLT */
-
-#ifdef PNG_WRITE_TEXT_SUPPORTED
- /* Check to see if we need to write text chunks */
- for (i = 0; i < info_ptr->num_text; i++)
- {
- png_debug2(2, "Writing header text chunk %d, type %d", i,
- info_ptr->text[i].compression);
- /* An internationalized chunk? */
- if (info_ptr->text[i].compression > 0)
- {
-#ifdef PNG_WRITE_iTXt_SUPPORTED
- /* Write international chunk */
- png_write_iTXt(png_ptr,
- info_ptr->text[i].compression,
- info_ptr->text[i].key,
- info_ptr->text[i].lang,
- info_ptr->text[i].lang_key,
- info_ptr->text[i].text);
- /* Mark this chunk as written */
- if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE)
- info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR;
- else
- info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR;
-#else
- png_warning(png_ptr, "Unable to write international text");
-#endif
- }
-
- /* If we want a compressed text chunk */
- else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_zTXt)
- {
-#ifdef PNG_WRITE_zTXt_SUPPORTED
- /* Write compressed chunk */
- png_write_zTXt(png_ptr, info_ptr->text[i].key,
- info_ptr->text[i].text, info_ptr->text[i].compression);
- /* Mark this chunk as written */
- info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR;
-#else
- png_warning(png_ptr, "Unable to write compressed text");
-#endif
- }
-
- else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE)
- {
-#ifdef PNG_WRITE_tEXt_SUPPORTED
- /* Write uncompressed chunk */
- png_write_tEXt(png_ptr, info_ptr->text[i].key,
- info_ptr->text[i].text,
- 0);
- /* Mark this chunk as written */
- info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR;
-#else
- /* Can't get here */
- png_warning(png_ptr, "Unable to write uncompressed text");
-#endif
- }
- }
-#endif /* tEXt */
-
-#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
- write_unknown_chunks(png_ptr, info_ptr, PNG_HAVE_PLTE);
-#endif
-}
-
-/* Writes the end of the PNG file. If you don't want to write comments or
- * time information, you can pass NULL for info. If you already wrote these
- * in png_write_info(), do not write them again here. If you have long
- * comments, I suggest writing them here, and compressing them.
- */
-void PNGAPI
-png_write_end(png_structrp png_ptr, png_inforp info_ptr)
-{
- png_debug(1, "in png_write_end");
-
- if (png_ptr == NULL)
- return;
-
- if ((png_ptr->mode & PNG_HAVE_IDAT) == 0)
- png_error(png_ptr, "No IDATs written into file");
-
-#ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
- if (png_ptr->num_palette_max > png_ptr->num_palette)
- png_benign_error(png_ptr, "Wrote palette index exceeding num_palette");
-#endif
-
- /* See if user wants us to write information chunks */
- if (info_ptr != NULL)
- {
-#ifdef PNG_WRITE_TEXT_SUPPORTED
- int i; /* local index variable */
-#endif
-#ifdef PNG_WRITE_tIME_SUPPORTED
- /* Check to see if user has supplied a time chunk */
- if ((info_ptr->valid & PNG_INFO_tIME) != 0 &&
- (png_ptr->mode & PNG_WROTE_tIME) == 0)
- png_write_tIME(png_ptr, &(info_ptr->mod_time));
-
-#endif
-#ifdef PNG_WRITE_TEXT_SUPPORTED
- /* Loop through comment chunks */
- for (i = 0; i < info_ptr->num_text; i++)
- {
- png_debug2(2, "Writing trailer text chunk %d, type %d", i,
- info_ptr->text[i].compression);
- /* An internationalized chunk? */
- if (info_ptr->text[i].compression > 0)
- {
-#ifdef PNG_WRITE_iTXt_SUPPORTED
- /* Write international chunk */
- png_write_iTXt(png_ptr,
- info_ptr->text[i].compression,
- info_ptr->text[i].key,
- info_ptr->text[i].lang,
- info_ptr->text[i].lang_key,
- info_ptr->text[i].text);
- /* Mark this chunk as written */
- if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE)
- info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR;
- else
- info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR;
-#else
- png_warning(png_ptr, "Unable to write international text");
-#endif
- }
-
- else if (info_ptr->text[i].compression >= PNG_TEXT_COMPRESSION_zTXt)
- {
-#ifdef PNG_WRITE_zTXt_SUPPORTED
- /* Write compressed chunk */
- png_write_zTXt(png_ptr, info_ptr->text[i].key,
- info_ptr->text[i].text, info_ptr->text[i].compression);
- /* Mark this chunk as written */
- info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR;
-#else
- png_warning(png_ptr, "Unable to write compressed text");
-#endif
- }
-
- else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE)
- {
-#ifdef PNG_WRITE_tEXt_SUPPORTED
- /* Write uncompressed chunk */
- png_write_tEXt(png_ptr, info_ptr->text[i].key,
- info_ptr->text[i].text, 0);
- /* Mark this chunk as written */
- info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR;
-#else
- png_warning(png_ptr, "Unable to write uncompressed text");
-#endif
- }
- }
-#endif
-
-#ifdef PNG_WRITE_eXIf_SUPPORTED
- if ((info_ptr->valid & PNG_INFO_eXIf) != 0)
- png_write_eXIf(png_ptr, info_ptr->exif, info_ptr->num_exif);
-#endif
-
-#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
- write_unknown_chunks(png_ptr, info_ptr, PNG_AFTER_IDAT);
-#endif
- }
-
- png_ptr->mode |= PNG_AFTER_IDAT;
-
- /* Write end of PNG file */
- png_write_IEND(png_ptr);
-
- /* This flush, added in libpng-1.0.8, removed from libpng-1.0.9beta03,
- * and restored again in libpng-1.2.30, may cause some applications that
- * do not set png_ptr->output_flush_fn to crash. If your application
- * experiences a problem, please try building libpng with
- * PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED defined, and report the event to
- * png-mng-implement at lists.sf.net .
- */
-#ifdef PNG_WRITE_FLUSH_SUPPORTED
-# ifdef PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED
- png_flush(png_ptr);
-# endif
-#endif
-}
-
-#ifdef PNG_CONVERT_tIME_SUPPORTED
-void PNGAPI
-png_convert_from_struct_tm(png_timep ptime, const struct tm * ttime)
-{
- png_debug(1, "in png_convert_from_struct_tm");
-
- ptime->year = (png_uint_16)(1900 + ttime->tm_year);
- ptime->month = (png_byte)(ttime->tm_mon + 1);
- ptime->day = (png_byte)ttime->tm_mday;
- ptime->hour = (png_byte)ttime->tm_hour;
- ptime->minute = (png_byte)ttime->tm_min;
- ptime->second = (png_byte)ttime->tm_sec;
-}
-
-void PNGAPI
-png_convert_from_time_t(png_timep ptime, time_t ttime)
-{
- struct tm *tbuf;
-
- png_debug(1, "in png_convert_from_time_t");
-
- tbuf = gmtime(&ttime);
- png_convert_from_struct_tm(ptime, tbuf);
-}
-#endif
-
-/* Initialize png_ptr structure, and allocate any memory needed */
-PNG_FUNCTION(png_structp,PNGAPI
-png_create_write_struct,(png_const_charp user_png_ver, png_voidp error_ptr,
- png_error_ptr error_fn, png_error_ptr warn_fn),PNG_ALLOCATED)
-{
-#ifndef PNG_USER_MEM_SUPPORTED
- png_structrp png_ptr = png_create_png_struct(user_png_ver, error_ptr,
- error_fn, warn_fn, NULL, NULL, NULL);
-#else
- return png_create_write_struct_2(user_png_ver, error_ptr, error_fn,
- warn_fn, NULL, NULL, NULL);
-}
-
-/* Alternate initialize png_ptr structure, and allocate any memory needed */
-PNG_FUNCTION(png_structp,PNGAPI
-png_create_write_struct_2,(png_const_charp user_png_ver, png_voidp error_ptr,
- png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr,
- png_malloc_ptr malloc_fn, png_free_ptr free_fn),PNG_ALLOCATED)
-{
- png_structrp png_ptr = png_create_png_struct(user_png_ver, error_ptr,
- error_fn, warn_fn, mem_ptr, malloc_fn, free_fn);
-#endif /* USER_MEM */
- if (png_ptr != NULL)
- {
- /* Set the zlib control values to defaults; they can be overridden by the
- * application after the struct has been created.
- */
- png_ptr->zbuffer_size = PNG_ZBUF_SIZE;
-
- /* The 'zlib_strategy' setting is irrelevant because png_default_claim in
- * pngwutil.c defaults it according to whether or not filters will be
- * used, and ignores this setting.
- */
- png_ptr->zlib_strategy = PNG_Z_DEFAULT_STRATEGY;
- png_ptr->zlib_level = PNG_Z_DEFAULT_COMPRESSION;
- png_ptr->zlib_mem_level = 8;
- png_ptr->zlib_window_bits = 15;
- png_ptr->zlib_method = 8;
-
-#ifdef PNG_WRITE_COMPRESSED_TEXT_SUPPORTED
- png_ptr->zlib_text_strategy = PNG_TEXT_Z_DEFAULT_STRATEGY;
- png_ptr->zlib_text_level = PNG_TEXT_Z_DEFAULT_COMPRESSION;
- png_ptr->zlib_text_mem_level = 8;
- png_ptr->zlib_text_window_bits = 15;
- png_ptr->zlib_text_method = 8;
-#endif /* WRITE_COMPRESSED_TEXT */
-
- /* This is a highly dubious configuration option; by default it is off,
- * but it may be appropriate for private builds that are testing
- * extensions not conformant to the current specification, or of
- * applications that must not fail to write at all costs!
- */
-#ifdef PNG_BENIGN_WRITE_ERRORS_SUPPORTED
- /* In stable builds only warn if an application error can be completely
- * handled.
- */
- png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN;
-#endif
-
- /* App warnings are warnings in release (or release candidate) builds but
- * are errors during development.
- */
-#if PNG_RELEASE_BUILD
- png_ptr->flags |= PNG_FLAG_APP_WARNINGS_WARN;
-#endif
-
- /* TODO: delay this, it can be done in png_init_io() (if the app doesn't
- * do it itself) avoiding setting the default function if it is not
- * required.
- */
- png_set_write_fn(png_ptr, NULL, NULL, NULL);
- }
-
- return png_ptr;
-}
-
-
-/* Write a few rows of image data. If the image is interlaced,
- * either you will have to write the 7 sub images, or, if you
- * have called png_set_interlace_handling(), you will have to
- * "write" the image seven times.
- */
-void PNGAPI
-png_write_rows(png_structrp png_ptr, png_bytepp row,
- png_uint_32 num_rows)
-{
- png_uint_32 i; /* row counter */
- png_bytepp rp; /* row pointer */
-
- png_debug(1, "in png_write_rows");
-
- if (png_ptr == NULL)
- return;
-
- /* Loop through the rows */
- for (i = 0, rp = row; i < num_rows; i++, rp++)
- {
- png_write_row(png_ptr, *rp);
- }
-}
-
-/* Write the image. You only need to call this function once, even
- * if you are writing an interlaced image.
- */
-void PNGAPI
-png_write_image(png_structrp png_ptr, png_bytepp image)
-{
- png_uint_32 i; /* row index */
- int pass, num_pass; /* pass variables */
- png_bytepp rp; /* points to current row */
-
- if (png_ptr == NULL)
- return;
-
- png_debug(1, "in png_write_image");
-
-#ifdef PNG_WRITE_INTERLACING_SUPPORTED
- /* Initialize interlace handling. If image is not interlaced,
- * this will set pass to 1
- */
- num_pass = png_set_interlace_handling(png_ptr);
-#else
- num_pass = 1;
-#endif
- /* Loop through passes */
- for (pass = 0; pass < num_pass; pass++)
- {
- /* Loop through image */
- for (i = 0, rp = image; i < png_ptr->height; i++, rp++)
- {
- png_write_row(png_ptr, *rp);
- }
- }
-}
-
-#ifdef PNG_MNG_FEATURES_SUPPORTED
-/* Performs intrapixel differencing */
-static void
-png_do_write_intrapixel(png_row_infop row_info, png_bytep row)
-{
- png_debug(1, "in png_do_write_intrapixel");
-
- if ((row_info->color_type & PNG_COLOR_MASK_COLOR) != 0)
- {
- int bytes_per_pixel;
- png_uint_32 row_width = row_info->width;
- if (row_info->bit_depth == 8)
- {
- png_bytep rp;
- png_uint_32 i;
-
- if (row_info->color_type == PNG_COLOR_TYPE_RGB)
- bytes_per_pixel = 3;
-
- else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- bytes_per_pixel = 4;
-
- else
- return;
-
- for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
- {
- *(rp) = (png_byte)(*rp - *(rp + 1));
- *(rp + 2) = (png_byte)(*(rp + 2) - *(rp + 1));
- }
- }
-
-#ifdef PNG_WRITE_16BIT_SUPPORTED
- else if (row_info->bit_depth == 16)
- {
- png_bytep rp;
- png_uint_32 i;
-
- if (row_info->color_type == PNG_COLOR_TYPE_RGB)
- bytes_per_pixel = 6;
-
- else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- bytes_per_pixel = 8;
-
- else
- return;
-
- for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
- {
- png_uint_32 s0 = (png_uint_32)(*(rp ) << 8) | *(rp + 1);
- png_uint_32 s1 = (png_uint_32)(*(rp + 2) << 8) | *(rp + 3);
- png_uint_32 s2 = (png_uint_32)(*(rp + 4) << 8) | *(rp + 5);
- png_uint_32 red = (png_uint_32)((s0 - s1) & 0xffffL);
- png_uint_32 blue = (png_uint_32)((s2 - s1) & 0xffffL);
- *(rp ) = (png_byte)(red >> 8);
- *(rp + 1) = (png_byte)red;
- *(rp + 4) = (png_byte)(blue >> 8);
- *(rp + 5) = (png_byte)blue;
- }
- }
-#endif /* WRITE_16BIT */
- }
-}
-#endif /* MNG_FEATURES */
-
-/* Called by user to write a row of image data */
-void PNGAPI
-png_write_row(png_structrp png_ptr, png_const_bytep row)
-{
- /* 1.5.6: moved from png_struct to be a local structure: */
- png_row_info row_info;
-
- if (png_ptr == NULL)
- return;
-
- png_debug2(1, "in png_write_row (row %u, pass %d)",
- png_ptr->row_number, png_ptr->pass);
-
- /* Initialize transformations and other stuff if first time */
- if (png_ptr->row_number == 0 && png_ptr->pass == 0)
- {
- /* Make sure we wrote the header info */
- if ((png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE) == 0)
- png_error(png_ptr,
- "png_write_info was never called before png_write_row");
-
- /* Check for transforms that have been set but were defined out */
-#if !defined(PNG_WRITE_INVERT_SUPPORTED) && defined(PNG_READ_INVERT_SUPPORTED)
- if ((png_ptr->transformations & PNG_INVERT_MONO) != 0)
- png_warning(png_ptr, "PNG_WRITE_INVERT_SUPPORTED is not defined");
-#endif
-
-#if !defined(PNG_WRITE_FILLER_SUPPORTED) && defined(PNG_READ_FILLER_SUPPORTED)
- if ((png_ptr->transformations & PNG_FILLER) != 0)
- png_warning(png_ptr, "PNG_WRITE_FILLER_SUPPORTED is not defined");
-#endif
-#if !defined(PNG_WRITE_PACKSWAP_SUPPORTED) && \
- defined(PNG_READ_PACKSWAP_SUPPORTED)
- if ((png_ptr->transformations & PNG_PACKSWAP) != 0)
- png_warning(png_ptr,
- "PNG_WRITE_PACKSWAP_SUPPORTED is not defined");
-#endif
-
-#if !defined(PNG_WRITE_PACK_SUPPORTED) && defined(PNG_READ_PACK_SUPPORTED)
- if ((png_ptr->transformations & PNG_PACK) != 0)
- png_warning(png_ptr, "PNG_WRITE_PACK_SUPPORTED is not defined");
-#endif
-
-#if !defined(PNG_WRITE_SHIFT_SUPPORTED) && defined(PNG_READ_SHIFT_SUPPORTED)
- if ((png_ptr->transformations & PNG_SHIFT) != 0)
- png_warning(png_ptr, "PNG_WRITE_SHIFT_SUPPORTED is not defined");
-#endif
-
-#if !defined(PNG_WRITE_BGR_SUPPORTED) && defined(PNG_READ_BGR_SUPPORTED)
- if ((png_ptr->transformations & PNG_BGR) != 0)
- png_warning(png_ptr, "PNG_WRITE_BGR_SUPPORTED is not defined");
-#endif
-
-#if !defined(PNG_WRITE_SWAP_SUPPORTED) && defined(PNG_READ_SWAP_SUPPORTED)
- if ((png_ptr->transformations & PNG_SWAP_BYTES) != 0)
- png_warning(png_ptr, "PNG_WRITE_SWAP_SUPPORTED is not defined");
-#endif
-
- png_write_start_row(png_ptr);
- }
-
-#ifdef PNG_WRITE_INTERLACING_SUPPORTED
- /* If interlaced and not interested in row, return */
- if (png_ptr->interlaced != 0 &&
- (png_ptr->transformations & PNG_INTERLACE) != 0)
- {
- switch (png_ptr->pass)
- {
- case 0:
- if ((png_ptr->row_number & 0x07) != 0)
- {
- png_write_finish_row(png_ptr);
- return;
- }
- break;
-
- case 1:
- if ((png_ptr->row_number & 0x07) != 0 || png_ptr->width < 5)
- {
- png_write_finish_row(png_ptr);
- return;
- }
- break;
-
- case 2:
- if ((png_ptr->row_number & 0x07) != 4)
- {
- png_write_finish_row(png_ptr);
- return;
- }
- break;
-
- case 3:
- if ((png_ptr->row_number & 0x03) != 0 || png_ptr->width < 3)
- {
- png_write_finish_row(png_ptr);
- return;
- }
- break;
-
- case 4:
- if ((png_ptr->row_number & 0x03) != 2)
- {
- png_write_finish_row(png_ptr);
- return;
- }
- break;
-
- case 5:
- if ((png_ptr->row_number & 0x01) != 0 || png_ptr->width < 2)
- {
- png_write_finish_row(png_ptr);
- return;
- }
- break;
-
- case 6:
- if ((png_ptr->row_number & 0x01) == 0)
- {
- png_write_finish_row(png_ptr);
- return;
- }
- break;
-
- default: /* error: ignore it */
- break;
- }
- }
-#endif
-
- /* Set up row info for transformations */
- row_info.color_type = png_ptr->color_type;
- row_info.width = png_ptr->usr_width;
- row_info.channels = png_ptr->usr_channels;
- row_info.bit_depth = png_ptr->usr_bit_depth;
- row_info.pixel_depth = (png_byte)(row_info.bit_depth * row_info.channels);
- row_info.rowbytes = PNG_ROWBYTES(row_info.pixel_depth, row_info.width);
-
- png_debug1(3, "row_info->color_type = %d", row_info.color_type);
- png_debug1(3, "row_info->width = %u", row_info.width);
- png_debug1(3, "row_info->channels = %d", row_info.channels);
- png_debug1(3, "row_info->bit_depth = %d", row_info.bit_depth);
- png_debug1(3, "row_info->pixel_depth = %d", row_info.pixel_depth);
- png_debug1(3, "row_info->rowbytes = %lu", (unsigned long)row_info.rowbytes);
-
- /* Copy user's row into buffer, leaving room for filter byte. */
- memcpy(png_ptr->row_buf + 1, row, row_info.rowbytes);
-
-#ifdef PNG_WRITE_INTERLACING_SUPPORTED
- /* Handle interlacing */
- if (png_ptr->interlaced && png_ptr->pass < 6 &&
- (png_ptr->transformations & PNG_INTERLACE) != 0)
- {
- png_do_write_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass);
- /* This should always get caught above, but still ... */
- if (row_info.width == 0)
- {
- png_write_finish_row(png_ptr);
- return;
- }
- }
-#endif
-
-#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
- /* Handle other transformations */
- if (png_ptr->transformations != 0)
- png_do_write_transformations(png_ptr, &row_info);
-#endif
-
- /* At this point the row_info pixel depth must match the 'transformed' depth,
- * which is also the output depth.
- */
- if (row_info.pixel_depth != png_ptr->pixel_depth ||
- row_info.pixel_depth != png_ptr->transformed_pixel_depth)
- png_error(png_ptr, "internal write transform logic error");
-
-#ifdef PNG_MNG_FEATURES_SUPPORTED
- /* Write filter_method 64 (intrapixel differencing) only if
- * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and
- * 2. Libpng did not write a PNG signature (this filter_method is only
- * used in PNG datastreams that are embedded in MNG datastreams) and
- * 3. The application called png_permit_mng_features with a mask that
- * included PNG_FLAG_MNG_FILTER_64 and
- * 4. The filter_method is 64 and
- * 5. The color_type is RGB or RGBA
- */
- if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) != 0 &&
- (png_ptr->filter_type == PNG_INTRAPIXEL_DIFFERENCING))
- {
- /* Intrapixel differencing */
- png_do_write_intrapixel(&row_info, png_ptr->row_buf + 1);
- }
-#endif
-
-/* Added at libpng-1.5.10 */
-#ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
- /* Check for out-of-range palette index */
- if (row_info.color_type == PNG_COLOR_TYPE_PALETTE &&
- png_ptr->num_palette_max >= 0)
- png_do_check_palette_indexes(png_ptr, &row_info);
-#endif
-
- /* Find a filter if necessary, filter the row and write it out. */
- png_write_find_filter(png_ptr, &row_info);
-
- if (png_ptr->write_row_fn != NULL)
- (*(png_ptr->write_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass);
-}
-
-#ifdef PNG_WRITE_FLUSH_SUPPORTED
-/* Set the automatic flush interval or 0 to turn flushing off */
-void PNGAPI
-png_set_flush(png_structrp png_ptr, int nrows)
-{
- png_debug(1, "in png_set_flush");
-
- if (png_ptr == NULL)
- return;
-
- png_ptr->flush_dist = (nrows < 0 ? 0 : (png_uint_32)nrows);
-}
-
-/* Flush the current output buffers now */
-void PNGAPI
-png_write_flush(png_structrp png_ptr)
-{
- png_debug(1, "in png_write_flush");
-
- if (png_ptr == NULL)
- return;
-
- /* We have already written out all of the data */
- if (png_ptr->row_number >= png_ptr->num_rows)
- return;
-
- png_compress_IDAT(png_ptr, NULL, 0, Z_SYNC_FLUSH);
- png_ptr->flush_rows = 0;
- png_flush(png_ptr);
-}
-#endif /* WRITE_FLUSH */
-
-/* Free any memory used in png_ptr struct without freeing the struct itself. */
-static void
-png_write_destroy(png_structrp png_ptr)
-{
- png_debug(1, "in png_write_destroy");
-
- /* Free any memory zlib uses */
- if ((png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) != 0)
- deflateEnd(&png_ptr->zstream);
-
- /* Free our memory. png_free checks NULL for us. */
- png_free_buffer_list(png_ptr, &png_ptr->zbuffer_list);
- png_free(png_ptr, png_ptr->row_buf);
- png_ptr->row_buf = NULL;
-#ifdef PNG_WRITE_FILTER_SUPPORTED
- png_free(png_ptr, png_ptr->prev_row);
- png_free(png_ptr, png_ptr->try_row);
- png_free(png_ptr, png_ptr->tst_row);
- png_ptr->prev_row = NULL;
- png_ptr->try_row = NULL;
- png_ptr->tst_row = NULL;
-#endif
-
-#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
- png_free(png_ptr, png_ptr->chunk_list);
- png_ptr->chunk_list = NULL;
-#endif
-
- /* The error handling and memory handling information is left intact at this
- * point: the jmp_buf may still have to be freed. See png_destroy_png_struct
- * for how this happens.
- */
-}
-
-/* Free all memory used by the write.
- * In libpng 1.6.0 this API changed quietly to no longer accept a NULL value for
- * *png_ptr_ptr. Prior to 1.6.0 it would accept such a value and it would free
- * the passed in info_structs but it would quietly fail to free any of the data
- * inside them. In 1.6.0 it quietly does nothing (it has to be quiet because it
- * has no png_ptr.)
- */
-void PNGAPI
-png_destroy_write_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr)
-{
- png_debug(1, "in png_destroy_write_struct");
-
- if (png_ptr_ptr != NULL)
- {
- png_structrp png_ptr = *png_ptr_ptr;
-
- if (png_ptr != NULL) /* added in libpng 1.6.0 */
- {
- png_destroy_info_struct(png_ptr, info_ptr_ptr);
-
- *png_ptr_ptr = NULL;
- png_write_destroy(png_ptr);
- png_destroy_png_struct(png_ptr);
- }
- }
-}
-
-/* Allow the application to select one or more row filters to use. */
-void PNGAPI
-png_set_filter(png_structrp png_ptr, int method, int filters)
-{
- png_debug(1, "in png_set_filter");
-
- if (png_ptr == NULL)
- return;
-
-#ifdef PNG_MNG_FEATURES_SUPPORTED
- if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) != 0 &&
- (method == PNG_INTRAPIXEL_DIFFERENCING))
- method = PNG_FILTER_TYPE_BASE;
-
-#endif
- if (method == PNG_FILTER_TYPE_BASE)
- {
- switch (filters & (PNG_ALL_FILTERS | 0x07))
- {
-#ifdef PNG_WRITE_FILTER_SUPPORTED
- case 5:
- case 6:
- case 7: png_app_error(png_ptr, "Unknown row filter for method 0");
-#endif /* WRITE_FILTER */
- /* FALLTHROUGH */
- case PNG_FILTER_VALUE_NONE:
- png_ptr->do_filter = PNG_FILTER_NONE; break;
-
-#ifdef PNG_WRITE_FILTER_SUPPORTED
- case PNG_FILTER_VALUE_SUB:
- png_ptr->do_filter = PNG_FILTER_SUB; break;
-
- case PNG_FILTER_VALUE_UP:
- png_ptr->do_filter = PNG_FILTER_UP; break;
-
- case PNG_FILTER_VALUE_AVG:
- png_ptr->do_filter = PNG_FILTER_AVG; break;
-
- case PNG_FILTER_VALUE_PAETH:
- png_ptr->do_filter = PNG_FILTER_PAETH; break;
-
- default:
- png_ptr->do_filter = (png_byte)filters; break;
-#else
- default:
- png_app_error(png_ptr, "Unknown row filter for method 0");
-#endif /* WRITE_FILTER */
- }
-
-#ifdef PNG_WRITE_FILTER_SUPPORTED
- /* If we have allocated the row_buf, this means we have already started
- * with the image and we should have allocated all of the filter buffers
- * that have been selected. If prev_row isn't already allocated, then
- * it is too late to start using the filters that need it, since we
- * will be missing the data in the previous row. If an application
- * wants to start and stop using particular filters during compression,
- * it should start out with all of the filters, and then remove them
- * or add them back after the start of compression.
- *
- * NOTE: this is a nasty constraint on the code, because it means that the
- * prev_row buffer must be maintained even if there are currently no
- * 'prev_row' requiring filters active.
- */
- if (png_ptr->row_buf != NULL)
- {
- int num_filters;
- png_alloc_size_t buf_size;
-
- /* Repeat the checks in png_write_start_row; 1 pixel high or wide
- * images cannot benefit from certain filters. If this isn't done here
- * the check below will fire on 1 pixel high images.
- */
- if (png_ptr->height == 1)
- filters &= ~(PNG_FILTER_UP|PNG_FILTER_AVG|PNG_FILTER_PAETH);
-
- if (png_ptr->width == 1)
- filters &= ~(PNG_FILTER_SUB|PNG_FILTER_AVG|PNG_FILTER_PAETH);
-
- if ((filters & (PNG_FILTER_UP|PNG_FILTER_AVG|PNG_FILTER_PAETH)) != 0
- && png_ptr->prev_row == NULL)
- {
- /* This is the error case, however it is benign - the previous row
- * is not available so the filter can't be used. Just warn here.
- */
- png_app_warning(png_ptr,
- "png_set_filter: UP/AVG/PAETH cannot be added after start");
- filters &= ~(PNG_FILTER_UP|PNG_FILTER_AVG|PNG_FILTER_PAETH);
- }
-
- num_filters = 0;
-
- if (filters & PNG_FILTER_SUB)
- num_filters++;
-
- if (filters & PNG_FILTER_UP)
- num_filters++;
-
- if (filters & PNG_FILTER_AVG)
- num_filters++;
-
- if (filters & PNG_FILTER_PAETH)
- num_filters++;
-
- /* Allocate needed row buffers if they have not already been
- * allocated.
- */
- buf_size = PNG_ROWBYTES(png_ptr->usr_channels * png_ptr->usr_bit_depth,
- png_ptr->width) + 1;
-
- if (png_ptr->try_row == NULL)
- png_ptr->try_row = png_voidcast(png_bytep,
- png_malloc(png_ptr, buf_size));
-
- if (num_filters > 1)
- {
- if (png_ptr->tst_row == NULL)
- png_ptr->tst_row = png_voidcast(png_bytep,
- png_malloc(png_ptr, buf_size));
- }
- }
- png_ptr->do_filter = (png_byte)filters;
-#endif
- }
- else
- png_error(png_ptr, "Unknown custom filter method");
-}
-
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* DEPRECATED */
-/* Provide floating and fixed point APIs */
-#ifdef PNG_FLOATING_POINT_SUPPORTED
-void PNGAPI
-png_set_filter_heuristics(png_structrp png_ptr, int heuristic_method,
- int num_weights, png_const_doublep filter_weights,
- png_const_doublep filter_costs)
-{
- PNG_UNUSED(png_ptr)
- PNG_UNUSED(heuristic_method)
- PNG_UNUSED(num_weights)
- PNG_UNUSED(filter_weights)
- PNG_UNUSED(filter_costs)
-}
-#endif /* FLOATING_POINT */
-
-#ifdef PNG_FIXED_POINT_SUPPORTED
-void PNGAPI
-png_set_filter_heuristics_fixed(png_structrp png_ptr, int heuristic_method,
- int num_weights, png_const_fixed_point_p filter_weights,
- png_const_fixed_point_p filter_costs)
-{
- PNG_UNUSED(png_ptr)
- PNG_UNUSED(heuristic_method)
- PNG_UNUSED(num_weights)
- PNG_UNUSED(filter_weights)
- PNG_UNUSED(filter_costs)
-}
-#endif /* FIXED_POINT */
-#endif /* WRITE_WEIGHTED_FILTER */
-
-#ifdef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
-void PNGAPI
-png_set_compression_level(png_structrp png_ptr, int level)
-{
- png_debug(1, "in png_set_compression_level");
-
- if (png_ptr == NULL)
- return;
-
- png_ptr->zlib_level = level;
-}
-
-void PNGAPI
-png_set_compression_mem_level(png_structrp png_ptr, int mem_level)
-{
- png_debug(1, "in png_set_compression_mem_level");
-
- if (png_ptr == NULL)
- return;
-
- png_ptr->zlib_mem_level = mem_level;
-}
-
-void PNGAPI
-png_set_compression_strategy(png_structrp png_ptr, int strategy)
-{
- png_debug(1, "in png_set_compression_strategy");
-
- if (png_ptr == NULL)
- return;
-
- /* The flag setting here prevents the libpng dynamic selection of strategy.
- */
- png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_STRATEGY;
- png_ptr->zlib_strategy = strategy;
-}
-
-/* If PNG_WRITE_OPTIMIZE_CMF_SUPPORTED is defined, libpng will use a
- * smaller value of window_bits if it can do so safely.
- */
-void PNGAPI
-png_set_compression_window_bits(png_structrp png_ptr, int window_bits)
-{
- if (png_ptr == NULL)
- return;
-
- /* Prior to 1.6.0 this would warn but then set the window_bits value. This
- * meant that negative window bits values could be selected that would cause
- * libpng to write a non-standard PNG file with raw deflate or gzip
- * compressed IDAT or ancillary chunks. Such files can be read and there is
- * no warning on read, so this seems like a very bad idea.
- */
- if (window_bits > 15)
- {
- png_warning(png_ptr, "Only compression windows <= 32k supported by PNG");
- window_bits = 15;
- }
-
- else if (window_bits < 8)
- {
- png_warning(png_ptr, "Only compression windows >= 256 supported by PNG");
- window_bits = 8;
- }
-
- png_ptr->zlib_window_bits = window_bits;
-}
-
-void PNGAPI
-png_set_compression_method(png_structrp png_ptr, int method)
-{
- png_debug(1, "in png_set_compression_method");
-
- if (png_ptr == NULL)
- return;
-
- /* This would produce an invalid PNG file if it worked, but it doesn't and
- * deflate will fault it, so it is harmless to just warn here.
- */
- if (method != 8)
- png_warning(png_ptr, "Only compression method 8 is supported by PNG");
-
- png_ptr->zlib_method = method;
-}
-#endif /* WRITE_CUSTOMIZE_COMPRESSION */
-
-/* The following were added to libpng-1.5.4 */
-#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
-void PNGAPI
-png_set_text_compression_level(png_structrp png_ptr, int level)
-{
- png_debug(1, "in png_set_text_compression_level");
-
- if (png_ptr == NULL)
- return;
-
- png_ptr->zlib_text_level = level;
-}
-
-void PNGAPI
-png_set_text_compression_mem_level(png_structrp png_ptr, int mem_level)
-{
- png_debug(1, "in png_set_text_compression_mem_level");
-
- if (png_ptr == NULL)
- return;
-
- png_ptr->zlib_text_mem_level = mem_level;
-}
-
-void PNGAPI
-png_set_text_compression_strategy(png_structrp png_ptr, int strategy)
-{
- png_debug(1, "in png_set_text_compression_strategy");
-
- if (png_ptr == NULL)
- return;
-
- png_ptr->zlib_text_strategy = strategy;
-}
-
-/* If PNG_WRITE_OPTIMIZE_CMF_SUPPORTED is defined, libpng will use a
- * smaller value of window_bits if it can do so safely.
- */
-void PNGAPI
-png_set_text_compression_window_bits(png_structrp png_ptr, int window_bits)
-{
- if (png_ptr == NULL)
- return;
-
- if (window_bits > 15)
- {
- png_warning(png_ptr, "Only compression windows <= 32k supported by PNG");
- window_bits = 15;
- }
-
- else if (window_bits < 8)
- {
- png_warning(png_ptr, "Only compression windows >= 256 supported by PNG");
- window_bits = 8;
- }
-
- png_ptr->zlib_text_window_bits = window_bits;
-}
-
-void PNGAPI
-png_set_text_compression_method(png_structrp png_ptr, int method)
-{
- png_debug(1, "in png_set_text_compression_method");
-
- if (png_ptr == NULL)
- return;
-
- if (method != 8)
- png_warning(png_ptr, "Only compression method 8 is supported by PNG");
-
- png_ptr->zlib_text_method = method;
-}
-#endif /* WRITE_CUSTOMIZE_ZTXT_COMPRESSION */
-/* end of API added to libpng-1.5.4 */
-
-void PNGAPI
-png_set_write_status_fn(png_structrp png_ptr, png_write_status_ptr write_row_fn)
-{
- if (png_ptr == NULL)
- return;
-
- png_ptr->write_row_fn = write_row_fn;
-}
-
-#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
-void PNGAPI
-png_set_write_user_transform_fn(png_structrp png_ptr, png_user_transform_ptr
- write_user_transform_fn)
-{
- png_debug(1, "in png_set_write_user_transform_fn");
-
- if (png_ptr == NULL)
- return;
-
- png_ptr->transformations |= PNG_USER_TRANSFORM;
- png_ptr->write_user_transform_fn = write_user_transform_fn;
-}
-#endif
-
-
-#ifdef PNG_INFO_IMAGE_SUPPORTED
-void PNGAPI
-png_write_png(png_structrp png_ptr, png_inforp info_ptr,
- int transforms, voidp params)
-{
- if (png_ptr == NULL || info_ptr == NULL)
- return;
-
- if ((info_ptr->valid & PNG_INFO_IDAT) == 0)
- {
- png_app_error(png_ptr, "no rows for png_write_image to write");
- return;
- }
-
- /* Write the file header information. */
- png_write_info(png_ptr, info_ptr);
-
- /* ------ these transformations don't touch the info structure ------- */
-
- /* Invert monochrome pixels */
- if ((transforms & PNG_TRANSFORM_INVERT_MONO) != 0)
-#ifdef PNG_WRITE_INVERT_SUPPORTED
- png_set_invert_mono(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_MONO not supported");
-#endif
-
- /* Shift the pixels up to a legal bit depth and fill in
- * as appropriate to correctly scale the image.
- */
- if ((transforms & PNG_TRANSFORM_SHIFT) != 0)
-#ifdef PNG_WRITE_SHIFT_SUPPORTED
- if ((info_ptr->valid & PNG_INFO_sBIT) != 0)
- png_set_shift(png_ptr, &info_ptr->sig_bit);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_SHIFT not supported");
-#endif
-
- /* Pack pixels into bytes */
- if ((transforms & PNG_TRANSFORM_PACKING) != 0)
-#ifdef PNG_WRITE_PACK_SUPPORTED
- png_set_packing(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_PACKING not supported");
-#endif
-
- /* Swap location of alpha bytes from ARGB to RGBA */
- if ((transforms & PNG_TRANSFORM_SWAP_ALPHA) != 0)
-#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED
- png_set_swap_alpha(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ALPHA not supported");
-#endif
-
- /* Remove a filler (X) from XRGB/RGBX/AG/GA into to convert it into
- * RGB, note that the code expects the input color type to be G or RGB; no
- * alpha channel.
- */
- if ((transforms & (PNG_TRANSFORM_STRIP_FILLER_AFTER|
- PNG_TRANSFORM_STRIP_FILLER_BEFORE)) != 0)
- {
-#ifdef PNG_WRITE_FILLER_SUPPORTED
- if ((transforms & PNG_TRANSFORM_STRIP_FILLER_AFTER) != 0)
- {
- if ((transforms & PNG_TRANSFORM_STRIP_FILLER_BEFORE) != 0)
- png_app_error(png_ptr,
- "PNG_TRANSFORM_STRIP_FILLER: BEFORE+AFTER not supported");
-
- /* Continue if ignored - this is the pre-1.6.10 behavior */
- png_set_filler(png_ptr, 0, PNG_FILLER_AFTER);
- }
-
- else if ((transforms & PNG_TRANSFORM_STRIP_FILLER_BEFORE) != 0)
- png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_STRIP_FILLER not supported");
-#endif
- }
-
- /* Flip BGR pixels to RGB */
- if ((transforms & PNG_TRANSFORM_BGR) != 0)
-#ifdef PNG_WRITE_BGR_SUPPORTED
- png_set_bgr(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_BGR not supported");
-#endif
-
- /* Swap bytes of 16-bit files to most significant byte first */
- if ((transforms & PNG_TRANSFORM_SWAP_ENDIAN) != 0)
-#ifdef PNG_WRITE_SWAP_SUPPORTED
- png_set_swap(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ENDIAN not supported");
-#endif
-
- /* Swap bits of 1-bit, 2-bit, 4-bit packed pixel formats */
- if ((transforms & PNG_TRANSFORM_PACKSWAP) != 0)
-#ifdef PNG_WRITE_PACKSWAP_SUPPORTED
- png_set_packswap(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_PACKSWAP not supported");
-#endif
-
- /* Invert the alpha channel from opacity to transparency */
- if ((transforms & PNG_TRANSFORM_INVERT_ALPHA) != 0)
-#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED
- png_set_invert_alpha(png_ptr);
-#else
- png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_ALPHA not supported");
-#endif
-
- /* ----------------------- end of transformations ------------------- */
-
- /* Write the bits */
- png_write_image(png_ptr, info_ptr->row_pointers);
-
- /* It is REQUIRED to call this to finish writing the rest of the file */
- png_write_end(png_ptr, info_ptr);
-
- PNG_UNUSED(params)
-}
-#endif
-
-
-#ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED
-/* Initialize the write structure - general purpose utility. */
-static int
-png_image_write_init(png_imagep image)
-{
- png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, image,
- png_safe_error, png_safe_warning);
-
- if (png_ptr != NULL)
- {
- png_infop info_ptr = png_create_info_struct(png_ptr);
-
- if (info_ptr != NULL)
- {
- png_controlp control = png_voidcast(png_controlp,
- png_malloc_warn(png_ptr, (sizeof *control)));
-
- if (control != NULL)
- {
- memset(control, 0, (sizeof *control));
-
- control->png_ptr = png_ptr;
- control->info_ptr = info_ptr;
- control->for_write = 1;
-
- image->opaque = control;
- return 1;
- }
-
- /* Error clean up */
- png_destroy_info_struct(png_ptr, &info_ptr);
- }
-
- png_destroy_write_struct(&png_ptr, NULL);
- }
-
- return png_image_error(image, "png_image_write_: out of memory");
-}
-
-/* Arguments to png_image_write_main: */
-typedef struct
-{
- /* Arguments: */
- png_imagep image;
- png_const_voidp buffer;
- png_int_32 row_stride;
- png_const_voidp colormap;
- int convert_to_8bit;
- /* Local variables: */
- png_const_voidp first_row;
- ptrdiff_t row_bytes;
- png_voidp local_row;
- /* Byte count for memory writing */
- png_bytep memory;
- png_alloc_size_t memory_bytes; /* not used for STDIO */
- png_alloc_size_t output_bytes; /* running total */
-} png_image_write_control;
-
-/* Write png_uint_16 input to a 16-bit PNG; the png_ptr has already been set to
- * do any necessary byte swapping. The component order is defined by the
- * png_image format value.
- */
-static int
-png_write_image_16bit(png_voidp argument)
-{
- png_image_write_control *display = png_voidcast(png_image_write_control*,
- argument);
- png_imagep image = display->image;
- png_structrp png_ptr = image->opaque->png_ptr;
-
- png_const_uint_16p input_row = png_voidcast(png_const_uint_16p,
- display->first_row);
- png_uint_16p output_row = png_voidcast(png_uint_16p, display->local_row);
- png_uint_16p row_end;
- unsigned int channels = (image->format & PNG_FORMAT_FLAG_COLOR) != 0 ?
- 3 : 1;
- int aindex = 0;
- png_uint_32 y = image->height;
-
- if ((image->format & PNG_FORMAT_FLAG_ALPHA) != 0)
- {
-# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
- if ((image->format & PNG_FORMAT_FLAG_AFIRST) != 0)
- {
- aindex = -1;
- ++input_row; /* To point to the first component */
- ++output_row;
- }
- else
- aindex = (int)channels;
-# else
- aindex = (int)channels;
-# endif
- }
-
- else
- png_error(png_ptr, "png_write_image: internal call error");
-
- /* Work out the output row end and count over this, note that the increment
- * above to 'row' means that row_end can actually be beyond the end of the
- * row; this is correct.
- */
- row_end = output_row + image->width * (channels+1);
-
- for (; y > 0; --y)
- {
- png_const_uint_16p in_ptr = input_row;
- png_uint_16p out_ptr = output_row;
-
- while (out_ptr < row_end)
- {
- png_uint_16 alpha = in_ptr[aindex];
- png_uint_32 reciprocal = 0;
- int c;
-
- out_ptr[aindex] = alpha;
-
- /* Calculate a reciprocal. The correct calculation is simply
- * component/alpha*65535 << 15. (I.e. 15 bits of precision); this
- * allows correct rounding by adding .5 before the shift. 'reciprocal'
- * is only initialized when required.
- */
- if (alpha > 0 && alpha < 65535)
- reciprocal = ((0xffff<<15)+(alpha>>1))/alpha;
-
- c = (int)channels;
- do /* always at least one channel */
- {
- png_uint_16 component = *in_ptr++;
-
- /* The following gives 65535 for an alpha of 0, which is fine,
- * otherwise if 0/0 is represented as some other value there is more
- * likely to be a discontinuity which will probably damage
- * compression when moving from a fully transparent area to a
- * nearly transparent one. (The assumption here is that opaque
- * areas tend not to be 0 intensity.)
- */
- if (component >= alpha)
- component = 65535;
-
- /* component<alpha, so component/alpha is less than one and
- * component*reciprocal is less than 2^31.
- */
- else if (component > 0 && alpha < 65535)
- {
- png_uint_32 calc = component * reciprocal;
- calc += 16384; /* round to nearest */
- component = (png_uint_16)(calc >> 15);
- }
-
- *out_ptr++ = component;
- }
- while (--c > 0);
-
- /* Skip to next component (skip the intervening alpha channel) */
- ++in_ptr;
- ++out_ptr;
- }
-
- png_write_row(png_ptr, png_voidcast(png_const_bytep, display->local_row));
- input_row += (png_uint_16)display->row_bytes/(sizeof (png_uint_16));
- }
-
- return 1;
-}
-
-/* Given 16-bit input (1 to 4 channels) write 8-bit output. If an alpha channel
- * is present it must be removed from the components, the components are then
- * written in sRGB encoding. No components are added or removed.
- *
- * Calculate an alpha reciprocal to reverse pre-multiplication. As above the
- * calculation can be done to 15 bits of accuracy; however, the output needs to
- * be scaled in the range 0..255*65535, so include that scaling here.
- */
-# define UNP_RECIPROCAL(alpha) ((((0xffff*0xff)<<7)+((alpha)>>1))/(alpha))
-
-static png_byte
-png_unpremultiply(png_uint_32 component, png_uint_32 alpha,
- png_uint_32 reciprocal/*from the above macro*/)
-{
- /* The following gives 1.0 for an alpha of 0, which is fine, otherwise if 0/0
- * is represented as some other value there is more likely to be a
- * discontinuity which will probably damage compression when moving from a
- * fully transparent area to a nearly transparent one. (The assumption here
- * is that opaque areas tend not to be 0 intensity.)
- *
- * There is a rounding problem here; if alpha is less than 128 it will end up
- * as 0 when scaled to 8 bits. To avoid introducing spurious colors into the
- * output change for this too.
- */
- if (component >= alpha || alpha < 128)
- return 255;
-
- /* component<alpha, so component/alpha is less than one and
- * component*reciprocal is less than 2^31.
- */
- else if (component > 0)
- {
- /* The test is that alpha/257 (rounded) is less than 255, the first value
- * that becomes 255 is 65407.
- * NOTE: this must agree with the PNG_DIV257 macro (which must, therefore,
- * be exact!) [Could also test reciprocal != 0]
- */
- if (alpha < 65407)
- {
- component *= reciprocal;
- component += 64; /* round to nearest */
- component >>= 7;
- }
-
- else
- component *= 255;
-
- /* Convert the component to sRGB. */
- return (png_byte)PNG_sRGB_FROM_LINEAR(component);
- }
-
- else
- return 0;
-}
-
-static int
-png_write_image_8bit(png_voidp argument)
-{
- png_image_write_control *display = png_voidcast(png_image_write_control*,
- argument);
- png_imagep image = display->image;
- png_structrp png_ptr = image->opaque->png_ptr;
-
- png_const_uint_16p input_row = png_voidcast(png_const_uint_16p,
- display->first_row);
- png_bytep output_row = png_voidcast(png_bytep, display->local_row);
- png_uint_32 y = image->height;
- unsigned int channels = (image->format & PNG_FORMAT_FLAG_COLOR) != 0 ?
- 3 : 1;
-
- if ((image->format & PNG_FORMAT_FLAG_ALPHA) != 0)
- {
- png_bytep row_end;
- int aindex;
-
-# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
- if ((image->format & PNG_FORMAT_FLAG_AFIRST) != 0)
- {
- aindex = -1;
- ++input_row; /* To point to the first component */
- ++output_row;
- }
-
- else
-# endif
- aindex = (int)channels;
-
- /* Use row_end in place of a loop counter: */
- row_end = output_row + image->width * (channels+1);
-
- for (; y > 0; --y)
- {
- png_const_uint_16p in_ptr = input_row;
- png_bytep out_ptr = output_row;
-
- while (out_ptr < row_end)
- {
- png_uint_16 alpha = in_ptr[aindex];
- png_byte alphabyte = (png_byte)PNG_DIV257(alpha);
- png_uint_32 reciprocal = 0;
- int c;
-
- /* Scale and write the alpha channel. */
- out_ptr[aindex] = alphabyte;
-
- if (alphabyte > 0 && alphabyte < 255)
- reciprocal = UNP_RECIPROCAL(alpha);
-
- c = (int)channels;
- do /* always at least one channel */
- *out_ptr++ = png_unpremultiply(*in_ptr++, alpha, reciprocal);
- while (--c > 0);
-
- /* Skip to next component (skip the intervening alpha channel) */
- ++in_ptr;
- ++out_ptr;
- } /* while out_ptr < row_end */
-
- png_write_row(png_ptr, png_voidcast(png_const_bytep,
- display->local_row));
- input_row += (png_uint_16)display->row_bytes/(sizeof (png_uint_16));
- } /* while y */
- }
-
- else
- {
- /* No alpha channel, so the row_end really is the end of the row and it
- * is sufficient to loop over the components one by one.
- */
- png_bytep row_end = output_row + image->width * channels;
-
- for (; y > 0; --y)
- {
- png_const_uint_16p in_ptr = input_row;
- png_bytep out_ptr = output_row;
-
- while (out_ptr < row_end)
- {
- png_uint_32 component = *in_ptr++;
-
- component *= 255;
- *out_ptr++ = (png_byte)PNG_sRGB_FROM_LINEAR(component);
- }
-
- png_write_row(png_ptr, output_row);
- input_row += (png_uint_16)display->row_bytes/(sizeof (png_uint_16));
- }
- }
-
- return 1;
-}
-
-static void
-png_image_set_PLTE(png_image_write_control *display)
-{
- png_imagep image = display->image;
- const void *cmap = display->colormap;
- int entries = image->colormap_entries > 256 ? 256 :
- (int)image->colormap_entries;
-
- /* NOTE: the caller must check for cmap != NULL and entries != 0 */
- png_uint_32 format = image->format;
- unsigned int channels = PNG_IMAGE_SAMPLE_CHANNELS(format);
-
-# if defined(PNG_FORMAT_BGR_SUPPORTED) &&\
- defined(PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED)
- int afirst = (format & PNG_FORMAT_FLAG_AFIRST) != 0 &&
- (format & PNG_FORMAT_FLAG_ALPHA) != 0;
-# else
-# define afirst 0
-# endif
-
-# ifdef PNG_FORMAT_BGR_SUPPORTED
- int bgr = (format & PNG_FORMAT_FLAG_BGR) != 0 ? 2 : 0;
-# else
-# define bgr 0
-# endif
-
- int i, num_trans;
- png_color palette[256];
- png_byte tRNS[256];
-
- memset(tRNS, 255, (sizeof tRNS));
- memset(palette, 0, (sizeof palette));
-
- for (i=num_trans=0; i<entries; ++i)
- {
- /* This gets automatically converted to sRGB with reversal of the
- * pre-multiplication if the color-map has an alpha channel.
- */
- if ((format & PNG_FORMAT_FLAG_LINEAR) != 0)
- {
- png_const_uint_16p entry = png_voidcast(png_const_uint_16p, cmap);
-
- entry += (unsigned int)i * channels;
-
- if ((channels & 1) != 0) /* no alpha */
- {
- if (channels >= 3) /* RGB */
- {
- palette[i].blue = (png_byte)PNG_sRGB_FROM_LINEAR(255 *
- entry[(2 ^ bgr)]);
- palette[i].green = (png_byte)PNG_sRGB_FROM_LINEAR(255 *
- entry[1]);
- palette[i].red = (png_byte)PNG_sRGB_FROM_LINEAR(255 *
- entry[bgr]);
- }
-
- else /* Gray */
- palette[i].blue = palette[i].red = palette[i].green =
- (png_byte)PNG_sRGB_FROM_LINEAR(255 * *entry);
- }
-
- else /* alpha */
- {
- png_uint_16 alpha = entry[afirst ? 0 : channels-1];
- png_byte alphabyte = (png_byte)PNG_DIV257(alpha);
- png_uint_32 reciprocal = 0;
-
- /* Calculate a reciprocal, as in the png_write_image_8bit code above
- * this is designed to produce a value scaled to 255*65535 when
- * divided by 128 (i.e. asr 7).
- */
- if (alphabyte > 0 && alphabyte < 255)
- reciprocal = (((0xffff*0xff)<<7)+(alpha>>1))/alpha;
-
- tRNS[i] = alphabyte;
- if (alphabyte < 255)
- num_trans = i+1;
-
- if (channels >= 3) /* RGB */
- {
- palette[i].blue = png_unpremultiply(entry[afirst + (2 ^ bgr)],
- alpha, reciprocal);
- palette[i].green = png_unpremultiply(entry[afirst + 1], alpha,
- reciprocal);
- palette[i].red = png_unpremultiply(entry[afirst + bgr], alpha,
- reciprocal);
- }
-
- else /* gray */
- palette[i].blue = palette[i].red = palette[i].green =
- png_unpremultiply(entry[afirst], alpha, reciprocal);
- }
- }
-
- else /* Color-map has sRGB values */
- {
- png_const_bytep entry = png_voidcast(png_const_bytep, cmap);
-
- entry += (unsigned int)i * channels;
-
- switch (channels)
- {
- case 4:
- tRNS[i] = entry[afirst ? 0 : 3];
- if (tRNS[i] < 255)
- num_trans = i+1;
- /* FALLTHROUGH */
- case 3:
- palette[i].blue = entry[afirst + (2 ^ bgr)];
- palette[i].green = entry[afirst + 1];
- palette[i].red = entry[afirst + bgr];
- break;
-
- case 2:
- tRNS[i] = entry[1 ^ afirst];
- if (tRNS[i] < 255)
- num_trans = i+1;
- /* FALLTHROUGH */
- case 1:
- palette[i].blue = palette[i].red = palette[i].green =
- entry[afirst];
- break;
-
- default:
- break;
- }
- }
- }
-
-# ifdef afirst
-# undef afirst
-# endif
-# ifdef bgr
-# undef bgr
-# endif
-
- png_set_PLTE(image->opaque->png_ptr, image->opaque->info_ptr, palette,
- entries);
-
- if (num_trans > 0)
- png_set_tRNS(image->opaque->png_ptr, image->opaque->info_ptr, tRNS,
- num_trans, NULL);
-
- image->colormap_entries = (png_uint_32)entries;
-}
-
-static int
-png_image_write_main(png_voidp argument)
-{
- png_image_write_control *display = png_voidcast(png_image_write_control*,
- argument);
- png_imagep image = display->image;
- png_structrp png_ptr = image->opaque->png_ptr;
- png_inforp info_ptr = image->opaque->info_ptr;
- png_uint_32 format = image->format;
-
- /* The following four ints are actually booleans */
- int colormap = (format & PNG_FORMAT_FLAG_COLORMAP);
- int linear = !colormap && (format & PNG_FORMAT_FLAG_LINEAR); /* input */
- int alpha = !colormap && (format & PNG_FORMAT_FLAG_ALPHA);
- int write_16bit = linear && (display->convert_to_8bit == 0);
-
-# ifdef PNG_BENIGN_ERRORS_SUPPORTED
- /* Make sure we error out on any bad situation */
- png_set_benign_errors(png_ptr, 0/*error*/);
-# endif
-
- /* Default the 'row_stride' parameter if required, also check the row stride
- * and total image size to ensure that they are within the system limits.
- */
- {
- unsigned int channels = PNG_IMAGE_PIXEL_CHANNELS(image->format);
-
- if (image->width <= 0x7fffffffU/channels) /* no overflow */
- {
- png_uint_32 check;
- png_uint_32 png_row_stride = image->width * channels;
-
- if (display->row_stride == 0)
- display->row_stride = (png_int_32)/*SAFE*/png_row_stride;
-
- if (display->row_stride < 0)
- check = (png_uint_32)(-display->row_stride);
-
- else
- check = (png_uint_32)display->row_stride;
-
- if (check >= png_row_stride)
- {
- /* Now check for overflow of the image buffer calculation; this
- * limits the whole image size to 32 bits for API compatibility with
- * the current, 32-bit, PNG_IMAGE_BUFFER_SIZE macro.
- */
- if (image->height > 0xffffffffU/png_row_stride)
- png_error(image->opaque->png_ptr, "memory image too large");
- }
-
- else
- png_error(image->opaque->png_ptr, "supplied row stride too small");
- }
-
- else
- png_error(image->opaque->png_ptr, "image row stride too large");
- }
-
- /* Set the required transforms then write the rows in the correct order. */
- if ((format & PNG_FORMAT_FLAG_COLORMAP) != 0)
- {
- if (display->colormap != NULL && image->colormap_entries > 0)
- {
- png_uint_32 entries = image->colormap_entries;
-
- png_set_IHDR(png_ptr, info_ptr, image->width, image->height,
- entries > 16 ? 8 : (entries > 4 ? 4 : (entries > 2 ? 2 : 1)),
- PNG_COLOR_TYPE_PALETTE, PNG_INTERLACE_NONE,
- PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
-
- png_image_set_PLTE(display);
- }
-
- else
- png_error(image->opaque->png_ptr,
- "no color-map for color-mapped image");
- }
-
- else
- png_set_IHDR(png_ptr, info_ptr, image->width, image->height,
- write_16bit ? 16 : 8,
- ((format & PNG_FORMAT_FLAG_COLOR) ? PNG_COLOR_MASK_COLOR : 0) +
- ((format & PNG_FORMAT_FLAG_ALPHA) ? PNG_COLOR_MASK_ALPHA : 0),
- PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
-
- /* Counter-intuitively the data transformations must be called *after*
- * png_write_info, not before as in the read code, but the 'set' functions
- * must still be called before. Just set the color space information, never
- * write an interlaced image.
- */
-
- if (write_16bit != 0)
- {
- /* The gamma here is 1.0 (linear) and the cHRM chunk matches sRGB. */
- png_set_gAMA_fixed(png_ptr, info_ptr, PNG_GAMMA_LINEAR);
-
- if ((image->flags & PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB) == 0)
- png_set_cHRM_fixed(png_ptr, info_ptr,
- /* color x y */
- /* white */ 31270, 32900,
- /* red */ 64000, 33000,
- /* green */ 30000, 60000,
- /* blue */ 15000, 6000
- );
- }
-
- else if ((image->flags & PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB) == 0)
- png_set_sRGB(png_ptr, info_ptr, PNG_sRGB_INTENT_PERCEPTUAL);
-
- /* Else writing an 8-bit file and the *colors* aren't sRGB, but the 8-bit
- * space must still be gamma encoded.
- */
- else
- png_set_gAMA_fixed(png_ptr, info_ptr, PNG_GAMMA_sRGB_INVERSE);
-
- /* Write the file header. */
- png_write_info(png_ptr, info_ptr);
-
- /* Now set up the data transformations (*after* the header is written),
- * remove the handled transformations from the 'format' flags for checking.
- *
- * First check for a little endian system if writing 16-bit files.
- */
- if (write_16bit != 0)
- {
- png_uint_16 le = 0x0001;
-
- if ((*(png_const_bytep) & le) != 0)
- png_set_swap(png_ptr);
- }
-
-# ifdef PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED
- if ((format & PNG_FORMAT_FLAG_BGR) != 0)
- {
- if (colormap == 0 && (format & PNG_FORMAT_FLAG_COLOR) != 0)
- png_set_bgr(png_ptr);
- format &= ~PNG_FORMAT_FLAG_BGR;
- }
-# endif
-
-# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
- if ((format & PNG_FORMAT_FLAG_AFIRST) != 0)
- {
- if (colormap == 0 && (format & PNG_FORMAT_FLAG_ALPHA) != 0)
- png_set_swap_alpha(png_ptr);
- format &= ~PNG_FORMAT_FLAG_AFIRST;
- }
-# endif
-
- /* If there are 16 or fewer color-map entries we wrote a lower bit depth
- * above, but the application data is still byte packed.
- */
- if (colormap != 0 && image->colormap_entries <= 16)
- png_set_packing(png_ptr);
-
- /* That should have handled all (both) the transforms. */
- if ((format & ~(png_uint_32)(PNG_FORMAT_FLAG_COLOR | PNG_FORMAT_FLAG_LINEAR |
- PNG_FORMAT_FLAG_ALPHA | PNG_FORMAT_FLAG_COLORMAP)) != 0)
- png_error(png_ptr, "png_write_image: unsupported transformation");
-
- {
- png_const_bytep row = png_voidcast(png_const_bytep, display->buffer);
- ptrdiff_t row_bytes = display->row_stride;
-
- if (linear != 0)
- row_bytes *= (sizeof (png_uint_16));
-
- if (row_bytes < 0)
- row += (image->height-1) * (-row_bytes);
-
- display->first_row = row;
- display->row_bytes = row_bytes;
- }
-
- /* Apply 'fast' options if the flag is set. */
- if ((image->flags & PNG_IMAGE_FLAG_FAST) != 0)
- {
- png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE, PNG_NO_FILTERS);
- /* NOTE: determined by experiment using pngstest, this reflects some
- * balance between the time to write the image once and the time to read
- * it about 50 times. The speed-up in pngstest was about 10-20% of the
- * total (user) time on a heavily loaded system.
- */
-# ifdef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
- png_set_compression_level(png_ptr, 3);
-# endif
- }
-
- /* Check for the cases that currently require a pre-transform on the row
- * before it is written. This only applies when the input is 16-bit and
- * either there is an alpha channel or it is converted to 8-bit.
- */
- if ((linear != 0 && alpha != 0 ) ||
- (colormap == 0 && display->convert_to_8bit != 0))
- {
- png_bytep row = png_voidcast(png_bytep, png_malloc(png_ptr,
- png_get_rowbytes(png_ptr, info_ptr)));
- int result;
-
- display->local_row = row;
- if (write_16bit != 0)
- result = png_safe_execute(image, png_write_image_16bit, display);
- else
- result = png_safe_execute(image, png_write_image_8bit, display);
- display->local_row = NULL;
-
- png_free(png_ptr, row);
-
- /* Skip the 'write_end' on error: */
- if (result == 0)
- return 0;
- }
-
- /* Otherwise this is the case where the input is in a format currently
- * supported by the rest of the libpng write code; call it directly.
- */
- else
- {
- png_const_bytep row = png_voidcast(png_const_bytep, display->first_row);
- ptrdiff_t row_bytes = display->row_bytes;
- png_uint_32 y = image->height;
-
- for (; y > 0; --y)
- {
- png_write_row(png_ptr, row);
- row += row_bytes;
- }
- }
-
- png_write_end(png_ptr, info_ptr);
- return 1;
-}
-
-
-static void (PNGCBAPI
-image_memory_write)(png_structp png_ptr, png_bytep/*const*/ data, size_t size)
-{
- png_image_write_control *display = png_voidcast(png_image_write_control*,
- png_ptr->io_ptr/*backdoor: png_get_io_ptr(png_ptr)*/);
- png_alloc_size_t ob = display->output_bytes;
-
- /* Check for overflow; this should never happen: */
- if (size <= ((png_alloc_size_t)-1) - ob)
- {
- /* I don't think libpng ever does this, but just in case: */
- if (size > 0)
- {
- if (display->memory_bytes >= ob+size) /* writing */
- memcpy(display->memory+ob, data, size);
-
- /* Always update the size: */
- display->output_bytes = ob+size;
- }
- }
-
- else
- png_error(png_ptr, "png_image_write_to_memory: PNG too big");
-}
-
-static void (PNGCBAPI
-image_memory_flush)(png_structp png_ptr)
-{
- PNG_UNUSED(png_ptr)
-}
-
-static int
-png_image_write_memory(png_voidp argument)
-{
- png_image_write_control *display = png_voidcast(png_image_write_control*,
- argument);
-
- /* The rest of the memory-specific init and write_main in an error protected
- * environment. This case needs to use callbacks for the write operations
- * since libpng has no built in support for writing to memory.
- */
- png_set_write_fn(display->image->opaque->png_ptr, display/*io_ptr*/,
- image_memory_write, image_memory_flush);
-
- return png_image_write_main(display);
-}
-
-int PNGAPI
-png_image_write_to_memory(png_imagep image, void *memory,
- png_alloc_size_t * PNG_RESTRICT memory_bytes, int convert_to_8bit,
- const void *buffer, png_int_32 row_stride, const void *colormap)
-{
- /* Write the image to the given buffer, or count the bytes if it is NULL */
- if (image != NULL && image->version == PNG_IMAGE_VERSION)
- {
- if (memory_bytes != NULL && buffer != NULL)
- {
- /* This is to give the caller an easier error detection in the NULL
- * case and guard against uninitialized variable problems:
- */
- if (memory == NULL)
- *memory_bytes = 0;
-
- if (png_image_write_init(image) != 0)
- {
- png_image_write_control display;
- int result;
-
- memset(&display, 0, (sizeof display));
- display.image = image;
- display.buffer = buffer;
- display.row_stride = row_stride;
- display.colormap = colormap;
- display.convert_to_8bit = convert_to_8bit;
- display.memory = png_voidcast(png_bytep, memory);
- display.memory_bytes = *memory_bytes;
- display.output_bytes = 0;
-
- result = png_safe_execute(image, png_image_write_memory, &display);
- png_image_free(image);
-
- /* write_memory returns true even if we ran out of buffer. */
- if (result)
- {
- /* On out-of-buffer this function returns '0' but still updates
- * memory_bytes:
- */
- if (memory != NULL && display.output_bytes > *memory_bytes)
- result = 0;
-
- *memory_bytes = display.output_bytes;
- }
-
- return result;
- }
-
- else
- return 0;
- }
-
- else
- return png_image_error(image,
- "png_image_write_to_memory: invalid argument");
- }
-
- else if (image != NULL)
- return png_image_error(image,
- "png_image_write_to_memory: incorrect PNG_IMAGE_VERSION");
-
- else
- return 0;
-}
-
-#ifdef PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED
-int PNGAPI
-png_image_write_to_stdio(png_imagep image, FILE *file, int convert_to_8bit,
- const void *buffer, png_int_32 row_stride, const void *colormap)
-{
- /* Write the image to the given (FILE*). */
- if (image != NULL && image->version == PNG_IMAGE_VERSION)
- {
- if (file != NULL && buffer != NULL)
- {
- if (png_image_write_init(image) != 0)
- {
- png_image_write_control display;
- int result;
-
- /* This is slightly evil, but png_init_io doesn't do anything other
- * than this and we haven't changed the standard IO functions so
- * this saves a 'safe' function.
- */
- image->opaque->png_ptr->io_ptr = file;
-
- memset(&display, 0, (sizeof display));
- display.image = image;
- display.buffer = buffer;
- display.row_stride = row_stride;
- display.colormap = colormap;
- display.convert_to_8bit = convert_to_8bit;
-
- result = png_safe_execute(image, png_image_write_main, &display);
- png_image_free(image);
- return result;
- }
-
- else
- return 0;
- }
-
- else
- return png_image_error(image,
- "png_image_write_to_stdio: invalid argument");
- }
-
- else if (image != NULL)
- return png_image_error(image,
- "png_image_write_to_stdio: incorrect PNG_IMAGE_VERSION");
-
- else
- return 0;
-}
-
-int PNGAPI
-png_image_write_to_file(png_imagep image, const char *file_name,
- int convert_to_8bit, const void *buffer, png_int_32 row_stride,
- const void *colormap)
-{
- /* Write the image to the named file. */
- if (image != NULL && image->version == PNG_IMAGE_VERSION)
- {
- if (file_name != NULL && buffer != NULL)
- {
- FILE *fp = fopen(file_name, "wb");
-
- if (fp != NULL)
- {
- if (png_image_write_to_stdio(image, fp, convert_to_8bit, buffer,
- row_stride, colormap) != 0)
- {
- int error; /* from fflush/fclose */
-
- /* Make sure the file is flushed correctly. */
- if (fflush(fp) == 0 && ferror(fp) == 0)
- {
- if (fclose(fp) == 0)
- return 1;
-
- error = errno; /* from fclose */
- }
-
- else
- {
- error = errno; /* from fflush or ferror */
- (void)fclose(fp);
- }
-
- (void)remove(file_name);
- /* The image has already been cleaned up; this is just used to
- * set the error (because the original write succeeded).
- */
- return png_image_error(image, strerror(error));
- }
-
- else
- {
- /* Clean up: just the opened file. */
- (void)fclose(fp);
- (void)remove(file_name);
- return 0;
- }
- }
-
- else
- return png_image_error(image, strerror(errno));
- }
-
- else
- return png_image_error(image,
- "png_image_write_to_file: invalid argument");
- }
-
- else if (image != NULL)
- return png_image_error(image,
- "png_image_write_to_file: incorrect PNG_IMAGE_VERSION");
-
- else
- return 0;
-}
-#endif /* SIMPLIFIED_WRITE_STDIO */
-#endif /* SIMPLIFIED_WRITE */
-#endif /* WRITE */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngwrite.lo b/3rdparty/libpng/libpng-1.6.37/pngwrite.lo
deleted file mode 100644
index 764c146..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngwrite.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# pngwrite.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/pngwrite.o'
-
-# Name of the non-PIC object
-non_pic_object='pngwrite.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/pngwrite.o b/3rdparty/libpng/libpng-1.6.37/pngwrite.o
deleted file mode 100644
index 088c238..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngwrite.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngwtran.c b/3rdparty/libpng/libpng-1.6.37/pngwtran.c
deleted file mode 100644
index 49a13c1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngwtran.c
+++ /dev/null
@@ -1,575 +0,0 @@
-
-/* pngwtran.c - transforms the data in a row for PNG writers
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#include "pngpriv.h"
-
-#ifdef PNG_WRITE_SUPPORTED
-#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
-
-#ifdef PNG_WRITE_PACK_SUPPORTED
-/* Pack pixels into bytes. Pass the true bit depth in bit_depth. The
- * row_info bit depth should be 8 (one pixel per byte). The channels
- * should be 1 (this only happens on grayscale and paletted images).
- */
-static void
-png_do_pack(png_row_infop row_info, png_bytep row, png_uint_32 bit_depth)
-{
- png_debug(1, "in png_do_pack");
-
- if (row_info->bit_depth == 8 &&
- row_info->channels == 1)
- {
- switch ((int)bit_depth)
- {
- case 1:
- {
- png_bytep sp, dp;
- int mask, v;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
- sp = row;
- dp = row;
- mask = 0x80;
- v = 0;
-
- for (i = 0; i < row_width; i++)
- {
- if (*sp != 0)
- v |= mask;
-
- sp++;
-
- if (mask > 1)
- mask >>= 1;
-
- else
- {
- mask = 0x80;
- *dp = (png_byte)v;
- dp++;
- v = 0;
- }
- }
-
- if (mask != 0x80)
- *dp = (png_byte)v;
-
- break;
- }
-
- case 2:
- {
- png_bytep sp, dp;
- unsigned int shift;
- int v;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
- sp = row;
- dp = row;
- shift = 6;
- v = 0;
-
- for (i = 0; i < row_width; i++)
- {
- png_byte value;
-
- value = (png_byte)(*sp & 0x03);
- v |= (value << shift);
-
- if (shift == 0)
- {
- shift = 6;
- *dp = (png_byte)v;
- dp++;
- v = 0;
- }
-
- else
- shift -= 2;
-
- sp++;
- }
-
- if (shift != 6)
- *dp = (png_byte)v;
-
- break;
- }
-
- case 4:
- {
- png_bytep sp, dp;
- unsigned int shift;
- int v;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
- sp = row;
- dp = row;
- shift = 4;
- v = 0;
-
- for (i = 0; i < row_width; i++)
- {
- png_byte value;
-
- value = (png_byte)(*sp & 0x0f);
- v |= (value << shift);
-
- if (shift == 0)
- {
- shift = 4;
- *dp = (png_byte)v;
- dp++;
- v = 0;
- }
-
- else
- shift -= 4;
-
- sp++;
- }
-
- if (shift != 4)
- *dp = (png_byte)v;
-
- break;
- }
-
- default:
- break;
- }
-
- row_info->bit_depth = (png_byte)bit_depth;
- row_info->pixel_depth = (png_byte)(bit_depth * row_info->channels);
- row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,
- row_info->width);
- }
-}
-#endif
-
-#ifdef PNG_WRITE_SHIFT_SUPPORTED
-/* Shift pixel values to take advantage of whole range. Pass the
- * true number of bits in bit_depth. The row should be packed
- * according to row_info->bit_depth. Thus, if you had a row of
- * bit depth 4, but the pixels only had values from 0 to 7, you
- * would pass 3 as bit_depth, and this routine would translate the
- * data to 0 to 15.
- */
-static void
-png_do_shift(png_row_infop row_info, png_bytep row,
- png_const_color_8p bit_depth)
-{
- png_debug(1, "in png_do_shift");
-
- if (row_info->color_type != PNG_COLOR_TYPE_PALETTE)
- {
- int shift_start[4], shift_dec[4];
- unsigned int channels = 0;
-
- if ((row_info->color_type & PNG_COLOR_MASK_COLOR) != 0)
- {
- shift_start[channels] = row_info->bit_depth - bit_depth->red;
- shift_dec[channels] = bit_depth->red;
- channels++;
-
- shift_start[channels] = row_info->bit_depth - bit_depth->green;
- shift_dec[channels] = bit_depth->green;
- channels++;
-
- shift_start[channels] = row_info->bit_depth - bit_depth->blue;
- shift_dec[channels] = bit_depth->blue;
- channels++;
- }
-
- else
- {
- shift_start[channels] = row_info->bit_depth - bit_depth->gray;
- shift_dec[channels] = bit_depth->gray;
- channels++;
- }
-
- if ((row_info->color_type & PNG_COLOR_MASK_ALPHA) != 0)
- {
- shift_start[channels] = row_info->bit_depth - bit_depth->alpha;
- shift_dec[channels] = bit_depth->alpha;
- channels++;
- }
-
- /* With low row depths, could only be grayscale, so one channel */
- if (row_info->bit_depth < 8)
- {
- png_bytep bp = row;
- size_t i;
- unsigned int mask;
- size_t row_bytes = row_info->rowbytes;
-
- if (bit_depth->gray == 1 && row_info->bit_depth == 2)
- mask = 0x55;
-
- else if (row_info->bit_depth == 4 && bit_depth->gray == 3)
- mask = 0x11;
-
- else
- mask = 0xff;
-
- for (i = 0; i < row_bytes; i++, bp++)
- {
- int j;
- unsigned int v, out;
-
- v = *bp;
- out = 0;
-
- for (j = shift_start[0]; j > -shift_dec[0]; j -= shift_dec[0])
- {
- if (j > 0)
- out |= v << j;
-
- else
- out |= (v >> (-j)) & mask;
- }
-
- *bp = (png_byte)(out & 0xff);
- }
- }
-
- else if (row_info->bit_depth == 8)
- {
- png_bytep bp = row;
- png_uint_32 i;
- png_uint_32 istop = channels * row_info->width;
-
- for (i = 0; i < istop; i++, bp++)
- {
- unsigned int c = i%channels;
- int j;
- unsigned int v, out;
-
- v = *bp;
- out = 0;
-
- for (j = shift_start[c]; j > -shift_dec[c]; j -= shift_dec[c])
- {
- if (j > 0)
- out |= v << j;
-
- else
- out |= v >> (-j);
- }
-
- *bp = (png_byte)(out & 0xff);
- }
- }
-
- else
- {
- png_bytep bp;
- png_uint_32 i;
- png_uint_32 istop = channels * row_info->width;
-
- for (bp = row, i = 0; i < istop; i++)
- {
- unsigned int c = i%channels;
- int j;
- unsigned int value, v;
-
- v = png_get_uint_16(bp);
- value = 0;
-
- for (j = shift_start[c]; j > -shift_dec[c]; j -= shift_dec[c])
- {
- if (j > 0)
- value |= v << j;
-
- else
- value |= v >> (-j);
- }
- *bp++ = (png_byte)((value >> 8) & 0xff);
- *bp++ = (png_byte)(value & 0xff);
- }
- }
- }
-}
-#endif
-
-#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED
-static void
-png_do_write_swap_alpha(png_row_infop row_info, png_bytep row)
-{
- png_debug(1, "in png_do_write_swap_alpha");
-
- {
- if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- {
- if (row_info->bit_depth == 8)
- {
- /* This converts from ARGB to RGBA */
- png_bytep sp, dp;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
- for (i = 0, sp = dp = row; i < row_width; i++)
- {
- png_byte save = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = save;
- }
- }
-
-#ifdef PNG_WRITE_16BIT_SUPPORTED
- else
- {
- /* This converts from AARRGGBB to RRGGBBAA */
- png_bytep sp, dp;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
- for (i = 0, sp = dp = row; i < row_width; i++)
- {
- png_byte save[2];
- save[0] = *(sp++);
- save[1] = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = save[0];
- *(dp++) = save[1];
- }
- }
-#endif /* WRITE_16BIT */
- }
-
- else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- {
- if (row_info->bit_depth == 8)
- {
- /* This converts from AG to GA */
- png_bytep sp, dp;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
- for (i = 0, sp = dp = row; i < row_width; i++)
- {
- png_byte save = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = save;
- }
- }
-
-#ifdef PNG_WRITE_16BIT_SUPPORTED
- else
- {
- /* This converts from AAGG to GGAA */
- png_bytep sp, dp;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
- for (i = 0, sp = dp = row; i < row_width; i++)
- {
- png_byte save[2];
- save[0] = *(sp++);
- save[1] = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = save[0];
- *(dp++) = save[1];
- }
- }
-#endif /* WRITE_16BIT */
- }
- }
-}
-#endif
-
-#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED
-static void
-png_do_write_invert_alpha(png_row_infop row_info, png_bytep row)
-{
- png_debug(1, "in png_do_write_invert_alpha");
-
- {
- if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- {
- if (row_info->bit_depth == 8)
- {
- /* This inverts the alpha channel in RGBA */
- png_bytep sp, dp;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
- for (i = 0, sp = dp = row; i < row_width; i++)
- {
- /* Does nothing
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- */
- sp+=3; dp = sp;
- *dp = (png_byte)(255 - *(sp++));
- }
- }
-
-#ifdef PNG_WRITE_16BIT_SUPPORTED
- else
- {
- /* This inverts the alpha channel in RRGGBBAA */
- png_bytep sp, dp;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
- for (i = 0, sp = dp = row; i < row_width; i++)
- {
- /* Does nothing
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- */
- sp+=6; dp = sp;
- *(dp++) = (png_byte)(255 - *(sp++));
- *dp = (png_byte)(255 - *(sp++));
- }
- }
-#endif /* WRITE_16BIT */
- }
-
- else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- {
- if (row_info->bit_depth == 8)
- {
- /* This inverts the alpha channel in GA */
- png_bytep sp, dp;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
- for (i = 0, sp = dp = row; i < row_width; i++)
- {
- *(dp++) = *(sp++);
- *(dp++) = (png_byte)(255 - *(sp++));
- }
- }
-
-#ifdef PNG_WRITE_16BIT_SUPPORTED
- else
- {
- /* This inverts the alpha channel in GGAA */
- png_bytep sp, dp;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
- for (i = 0, sp = dp = row; i < row_width; i++)
- {
- /* Does nothing
- *(dp++) = *(sp++);
- *(dp++) = *(sp++);
- */
- sp+=2; dp = sp;
- *(dp++) = (png_byte)(255 - *(sp++));
- *dp = (png_byte)(255 - *(sp++));
- }
- }
-#endif /* WRITE_16BIT */
- }
- }
-}
-#endif
-
-/* Transform the data according to the user's wishes. The order of
- * transformations is significant.
- */
-void /* PRIVATE */
-png_do_write_transformations(png_structrp png_ptr, png_row_infop row_info)
-{
- png_debug(1, "in png_do_write_transformations");
-
- if (png_ptr == NULL)
- return;
-
-#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
- if ((png_ptr->transformations & PNG_USER_TRANSFORM) != 0)
- if (png_ptr->write_user_transform_fn != NULL)
- (*(png_ptr->write_user_transform_fn)) /* User write transform
- function */
- (png_ptr, /* png_ptr */
- row_info, /* row_info: */
- /* png_uint_32 width; width of row */
- /* size_t rowbytes; number of bytes in row */
- /* png_byte color_type; color type of pixels */
- /* png_byte bit_depth; bit depth of samples */
- /* png_byte channels; number of channels (1-4) */
- /* png_byte pixel_depth; bits per pixel (depth*channels) */
- png_ptr->row_buf + 1); /* start of pixel data for row */
-#endif
-
-#ifdef PNG_WRITE_FILLER_SUPPORTED
- if ((png_ptr->transformations & PNG_FILLER) != 0)
- png_do_strip_channel(row_info, png_ptr->row_buf + 1,
- !(png_ptr->flags & PNG_FLAG_FILLER_AFTER));
-#endif
-
-#ifdef PNG_WRITE_PACKSWAP_SUPPORTED
- if ((png_ptr->transformations & PNG_PACKSWAP) != 0)
- png_do_packswap(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_WRITE_PACK_SUPPORTED
- if ((png_ptr->transformations & PNG_PACK) != 0)
- png_do_pack(row_info, png_ptr->row_buf + 1,
- (png_uint_32)png_ptr->bit_depth);
-#endif
-
-#ifdef PNG_WRITE_SWAP_SUPPORTED
-# ifdef PNG_16BIT_SUPPORTED
- if ((png_ptr->transformations & PNG_SWAP_BYTES) != 0)
- png_do_swap(row_info, png_ptr->row_buf + 1);
-# endif
-#endif
-
-#ifdef PNG_WRITE_SHIFT_SUPPORTED
- if ((png_ptr->transformations & PNG_SHIFT) != 0)
- png_do_shift(row_info, png_ptr->row_buf + 1,
- &(png_ptr->shift));
-#endif
-
-#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED
- if ((png_ptr->transformations & PNG_SWAP_ALPHA) != 0)
- png_do_write_swap_alpha(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED
- if ((png_ptr->transformations & PNG_INVERT_ALPHA) != 0)
- png_do_write_invert_alpha(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_WRITE_BGR_SUPPORTED
- if ((png_ptr->transformations & PNG_BGR) != 0)
- png_do_bgr(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_WRITE_INVERT_SUPPORTED
- if ((png_ptr->transformations & PNG_INVERT_MONO) != 0)
- png_do_invert(row_info, png_ptr->row_buf + 1);
-#endif
-}
-#endif /* WRITE_TRANSFORMS */
-#endif /* WRITE */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngwtran.lo b/3rdparty/libpng/libpng-1.6.37/pngwtran.lo
deleted file mode 100644
index ed6845a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngwtran.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# pngwtran.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/pngwtran.o'
-
-# Name of the non-PIC object
-non_pic_object='pngwtran.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/pngwtran.o b/3rdparty/libpng/libpng-1.6.37/pngwtran.o
deleted file mode 100644
index c16f656..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngwtran.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/pngwutil.c b/3rdparty/libpng/libpng-1.6.37/pngwutil.c
deleted file mode 100644
index 16345e4..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngwutil.c
+++ /dev/null
@@ -1,2781 +0,0 @@
-
-/* pngwutil.c - utilities to write a PNG file
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
- * Copyright (c) 1996-1997 Andreas Dilger
- * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#include "pngpriv.h"
-
-#ifdef PNG_WRITE_SUPPORTED
-
-#ifdef PNG_WRITE_INT_FUNCTIONS_SUPPORTED
-/* Place a 32-bit number into a buffer in PNG byte order. We work
- * with unsigned numbers for convenience, although one supported
- * ancillary chunk uses signed (two's complement) numbers.
- */
-void PNGAPI
-png_save_uint_32(png_bytep buf, png_uint_32 i)
-{
- buf[0] = (png_byte)((i >> 24) & 0xffU);
- buf[1] = (png_byte)((i >> 16) & 0xffU);
- buf[2] = (png_byte)((i >> 8) & 0xffU);
- buf[3] = (png_byte)( i & 0xffU);
-}
-
-/* Place a 16-bit number into a buffer in PNG byte order.
- * The parameter is declared unsigned int, not png_uint_16,
- * just to avoid potential problems on pre-ANSI C compilers.
- */
-void PNGAPI
-png_save_uint_16(png_bytep buf, unsigned int i)
-{
- buf[0] = (png_byte)((i >> 8) & 0xffU);
- buf[1] = (png_byte)( i & 0xffU);
-}
-#endif
-
-/* Simple function to write the signature. If we have already written
- * the magic bytes of the signature, or more likely, the PNG stream is
- * being embedded into another stream and doesn't need its own signature,
- * we should call png_set_sig_bytes() to tell libpng how many of the
- * bytes have already been written.
- */
-void PNGAPI
-png_write_sig(png_structrp png_ptr)
-{
- png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10};
-
-#ifdef PNG_IO_STATE_SUPPORTED
- /* Inform the I/O callback that the signature is being written */
- png_ptr->io_state = PNG_IO_WRITING | PNG_IO_SIGNATURE;
-#endif
-
- /* Write the rest of the 8 byte signature */
- png_write_data(png_ptr, &png_signature[png_ptr->sig_bytes],
- (size_t)(8 - png_ptr->sig_bytes));
-
- if (png_ptr->sig_bytes < 3)
- png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE;
-}
-
-/* Write the start of a PNG chunk. The type is the chunk type.
- * The total_length is the sum of the lengths of all the data you will be
- * passing in png_write_chunk_data().
- */
-static void
-png_write_chunk_header(png_structrp png_ptr, png_uint_32 chunk_name,
- png_uint_32 length)
-{
- png_byte buf[8];
-
-#if defined(PNG_DEBUG) && (PNG_DEBUG > 0)
- PNG_CSTRING_FROM_CHUNK(buf, chunk_name);
- png_debug2(0, "Writing %s chunk, length = %lu", buf, (unsigned long)length);
-#endif
-
- if (png_ptr == NULL)
- return;
-
-#ifdef PNG_IO_STATE_SUPPORTED
- /* Inform the I/O callback that the chunk header is being written.
- * PNG_IO_CHUNK_HDR requires a single I/O call.
- */
- png_ptr->io_state = PNG_IO_WRITING | PNG_IO_CHUNK_HDR;
-#endif
-
- /* Write the length and the chunk name */
- png_save_uint_32(buf, length);
- png_save_uint_32(buf + 4, chunk_name);
- png_write_data(png_ptr, buf, 8);
-
- /* Put the chunk name into png_ptr->chunk_name */
- png_ptr->chunk_name = chunk_name;
-
- /* Reset the crc and run it over the chunk name */
- png_reset_crc(png_ptr);
-
- png_calculate_crc(png_ptr, buf + 4, 4);
-
-#ifdef PNG_IO_STATE_SUPPORTED
- /* Inform the I/O callback that chunk data will (possibly) be written.
- * PNG_IO_CHUNK_DATA does NOT require a specific number of I/O calls.
- */
- png_ptr->io_state = PNG_IO_WRITING | PNG_IO_CHUNK_DATA;
-#endif
-}
-
-void PNGAPI
-png_write_chunk_start(png_structrp png_ptr, png_const_bytep chunk_string,
- png_uint_32 length)
-{
- png_write_chunk_header(png_ptr, PNG_CHUNK_FROM_STRING(chunk_string), length);
-}
-
-/* Write the data of a PNG chunk started with png_write_chunk_header().
- * Note that multiple calls to this function are allowed, and that the
- * sum of the lengths from these calls *must* add up to the total_length
- * given to png_write_chunk_header().
- */
-void PNGAPI
-png_write_chunk_data(png_structrp png_ptr, png_const_bytep data, size_t length)
-{
- /* Write the data, and run the CRC over it */
- if (png_ptr == NULL)
- return;
-
- if (data != NULL && length > 0)
- {
- png_write_data(png_ptr, data, length);
-
- /* Update the CRC after writing the data,
- * in case the user I/O routine alters it.
- */
- png_calculate_crc(png_ptr, data, length);
- }
-}
-
-/* Finish a chunk started with png_write_chunk_header(). */
-void PNGAPI
-png_write_chunk_end(png_structrp png_ptr)
-{
- png_byte buf[4];
-
- if (png_ptr == NULL) return;
-
-#ifdef PNG_IO_STATE_SUPPORTED
- /* Inform the I/O callback that the chunk CRC is being written.
- * PNG_IO_CHUNK_CRC requires a single I/O function call.
- */
- png_ptr->io_state = PNG_IO_WRITING | PNG_IO_CHUNK_CRC;
-#endif
-
- /* Write the crc in a single operation */
- png_save_uint_32(buf, png_ptr->crc);
-
- png_write_data(png_ptr, buf, 4);
-}
-
-/* Write a PNG chunk all at once. The type is an array of ASCII characters
- * representing the chunk name. The array must be at least 4 bytes in
- * length, and does not need to be null terminated. To be safe, pass the
- * pre-defined chunk names here, and if you need a new one, define it
- * where the others are defined. The length is the length of the data.
- * All the data must be present. If that is not possible, use the
- * png_write_chunk_start(), png_write_chunk_data(), and png_write_chunk_end()
- * functions instead.
- */
-static void
-png_write_complete_chunk(png_structrp png_ptr, png_uint_32 chunk_name,
- png_const_bytep data, size_t length)
-{
- if (png_ptr == NULL)
- return;
-
- /* On 64-bit architectures 'length' may not fit in a png_uint_32. */
- if (length > PNG_UINT_31_MAX)
- png_error(png_ptr, "length exceeds PNG maximum");
-
- png_write_chunk_header(png_ptr, chunk_name, (png_uint_32)length);
- png_write_chunk_data(png_ptr, data, length);
- png_write_chunk_end(png_ptr);
-}
-
-/* This is the API that calls the internal function above. */
-void PNGAPI
-png_write_chunk(png_structrp png_ptr, png_const_bytep chunk_string,
- png_const_bytep data, size_t length)
-{
- png_write_complete_chunk(png_ptr, PNG_CHUNK_FROM_STRING(chunk_string), data,
- length);
-}
-
-/* This is used below to find the size of an image to pass to png_deflate_claim,
- * so it only needs to be accurate if the size is less than 16384 bytes (the
- * point at which a lower LZ window size can be used.)
- */
-static png_alloc_size_t
-png_image_size(png_structrp png_ptr)
-{
- /* Only return sizes up to the maximum of a png_uint_32; do this by limiting
- * the width and height used to 15 bits.
- */
- png_uint_32 h = png_ptr->height;
-
- if (png_ptr->rowbytes < 32768 && h < 32768)
- {
- if (png_ptr->interlaced != 0)
- {
- /* Interlacing makes the image larger because of the replication of
- * both the filter byte and the padding to a byte boundary.
- */
- png_uint_32 w = png_ptr->width;
- unsigned int pd = png_ptr->pixel_depth;
- png_alloc_size_t cb_base;
- int pass;
-
- for (cb_base=0, pass=0; pass<=6; ++pass)
- {
- png_uint_32 pw = PNG_PASS_COLS(w, pass);
-
- if (pw > 0)
- cb_base += (PNG_ROWBYTES(pd, pw)+1) * PNG_PASS_ROWS(h, pass);
- }
-
- return cb_base;
- }
-
- else
- return (png_ptr->rowbytes+1) * h;
- }
-
- else
- return 0xffffffffU;
-}
-
-#ifdef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
- /* This is the code to hack the first two bytes of the deflate stream (the
- * deflate header) to correct the windowBits value to match the actual data
- * size. Note that the second argument is the *uncompressed* size but the
- * first argument is the *compressed* data (and it must be deflate
- * compressed.)
- */
-static void
-optimize_cmf(png_bytep data, png_alloc_size_t data_size)
-{
- /* Optimize the CMF field in the zlib stream. The resultant zlib stream is
- * still compliant to the stream specification.
- */
- if (data_size <= 16384) /* else windowBits must be 15 */
- {
- unsigned int z_cmf = data[0]; /* zlib compression method and flags */
-
- if ((z_cmf & 0x0f) == 8 && (z_cmf & 0xf0) <= 0x70)
- {
- unsigned int z_cinfo;
- unsigned int half_z_window_size;
-
- z_cinfo = z_cmf >> 4;
- half_z_window_size = 1U << (z_cinfo + 7);
-
- if (data_size <= half_z_window_size) /* else no change */
- {
- unsigned int tmp;
-
- do
- {
- half_z_window_size >>= 1;
- --z_cinfo;
- }
- while (z_cinfo > 0 && data_size <= half_z_window_size);
-
- z_cmf = (z_cmf & 0x0f) | (z_cinfo << 4);
-
- data[0] = (png_byte)z_cmf;
- tmp = data[1] & 0xe0;
- tmp += 0x1f - ((z_cmf << 8) + tmp) % 0x1f;
- data[1] = (png_byte)tmp;
- }
- }
- }
-}
-#endif /* WRITE_OPTIMIZE_CMF */
-
-/* Initialize the compressor for the appropriate type of compression. */
-static int
-png_deflate_claim(png_structrp png_ptr, png_uint_32 owner,
- png_alloc_size_t data_size)
-{
- if (png_ptr->zowner != 0)
- {
-#if defined(PNG_WARNINGS_SUPPORTED) || defined(PNG_ERROR_TEXT_SUPPORTED)
- char msg[64];
-
- PNG_STRING_FROM_CHUNK(msg, owner);
- msg[4] = ':';
- msg[5] = ' ';
- PNG_STRING_FROM_CHUNK(msg+6, png_ptr->zowner);
- /* So the message that results is "<chunk> using zstream"; this is an
- * internal error, but is very useful for debugging. i18n requirements
- * are minimal.
- */
- (void)png_safecat(msg, (sizeof msg), 10, " using zstream");
-#endif
-#if PNG_RELEASE_BUILD
- png_warning(png_ptr, msg);
-
- /* Attempt sane error recovery */
- if (png_ptr->zowner == png_IDAT) /* don't steal from IDAT */
- {
- png_ptr->zstream.msg = PNGZ_MSG_CAST("in use by IDAT");
- return Z_STREAM_ERROR;
- }
-
- png_ptr->zowner = 0;
-#else
- png_error(png_ptr, msg);
-#endif
- }
-
- {
- int level = png_ptr->zlib_level;
- int method = png_ptr->zlib_method;
- int windowBits = png_ptr->zlib_window_bits;
- int memLevel = png_ptr->zlib_mem_level;
- int strategy; /* set below */
- int ret; /* zlib return code */
-
- if (owner == png_IDAT)
- {
- if ((png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_STRATEGY) != 0)
- strategy = png_ptr->zlib_strategy;
-
- else if (png_ptr->do_filter != PNG_FILTER_NONE)
- strategy = PNG_Z_DEFAULT_STRATEGY;
-
- else
- strategy = PNG_Z_DEFAULT_NOFILTER_STRATEGY;
- }
-
- else
- {
-#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
- level = png_ptr->zlib_text_level;
- method = png_ptr->zlib_text_method;
- windowBits = png_ptr->zlib_text_window_bits;
- memLevel = png_ptr->zlib_text_mem_level;
- strategy = png_ptr->zlib_text_strategy;
-#else
- /* If customization is not supported the values all come from the
- * IDAT values except for the strategy, which is fixed to the
- * default. (This is the pre-1.6.0 behavior too, although it was
- * implemented in a very different way.)
- */
- strategy = Z_DEFAULT_STRATEGY;
-#endif
- }
-
- /* Adjust 'windowBits' down if larger than 'data_size'; to stop this
- * happening just pass 32768 as the data_size parameter. Notice that zlib
- * requires an extra 262 bytes in the window in addition to the data to be
- * able to see the whole of the data, so if data_size+262 takes us to the
- * next windowBits size we need to fix up the value later. (Because even
- * though deflate needs the extra window, inflate does not!)
- */
- if (data_size <= 16384)
- {
- /* IMPLEMENTATION NOTE: this 'half_window_size' stuff is only here to
- * work round a Microsoft Visual C misbehavior which, contrary to C-90,
- * widens the result of the following shift to 64-bits if (and,
- * apparently, only if) it is used in a test.
- */
- unsigned int half_window_size = 1U << (windowBits-1);
-
- while (data_size + 262 <= half_window_size)
- {
- half_window_size >>= 1;
- --windowBits;
- }
- }
-
- /* Check against the previous initialized values, if any. */
- if ((png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) != 0 &&
- (png_ptr->zlib_set_level != level ||
- png_ptr->zlib_set_method != method ||
- png_ptr->zlib_set_window_bits != windowBits ||
- png_ptr->zlib_set_mem_level != memLevel ||
- png_ptr->zlib_set_strategy != strategy))
- {
- if (deflateEnd(&png_ptr->zstream) != Z_OK)
- png_warning(png_ptr, "deflateEnd failed (ignored)");
-
- png_ptr->flags &= ~PNG_FLAG_ZSTREAM_INITIALIZED;
- }
-
- /* For safety clear out the input and output pointers (currently zlib
- * doesn't use them on Init, but it might in the future).
- */
- png_ptr->zstream.next_in = NULL;
- png_ptr->zstream.avail_in = 0;
- png_ptr->zstream.next_out = NULL;
- png_ptr->zstream.avail_out = 0;
-
- /* Now initialize if required, setting the new parameters, otherwise just
- * do a simple reset to the previous parameters.
- */
- if ((png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) != 0)
- ret = deflateReset(&png_ptr->zstream);
-
- else
- {
- ret = deflateInit2(&png_ptr->zstream, level, method, windowBits,
- memLevel, strategy);
-
- if (ret == Z_OK)
- png_ptr->flags |= PNG_FLAG_ZSTREAM_INITIALIZED;
- }
-
- /* The return code is from either deflateReset or deflateInit2; they have
- * pretty much the same set of error codes.
- */
- if (ret == Z_OK)
- png_ptr->zowner = owner;
-
- else
- png_zstream_error(png_ptr, ret);
-
- return ret;
- }
-}
-
-/* Clean up (or trim) a linked list of compression buffers. */
-void /* PRIVATE */
-png_free_buffer_list(png_structrp png_ptr, png_compression_bufferp *listp)
-{
- png_compression_bufferp list = *listp;
-
- if (list != NULL)
- {
- *listp = NULL;
-
- do
- {
- png_compression_bufferp next = list->next;
-
- png_free(png_ptr, list);
- list = next;
- }
- while (list != NULL);
- }
-}
-
-#ifdef PNG_WRITE_COMPRESSED_TEXT_SUPPORTED
-/* This pair of functions encapsulates the operation of (a) compressing a
- * text string, and (b) issuing it later as a series of chunk data writes.
- * The compression_state structure is shared context for these functions
- * set up by the caller to allow access to the relevant local variables.
- *
- * compression_buffer (new in 1.6.0) is just a linked list of zbuffer_size
- * temporary buffers. From 1.6.0 it is retained in png_struct so that it will
- * be correctly freed in the event of a write error (previous implementations
- * just leaked memory.)
- */
-typedef struct
-{
- png_const_bytep input; /* The uncompressed input data */
- png_alloc_size_t input_len; /* Its length */
- png_uint_32 output_len; /* Final compressed length */
- png_byte output[1024]; /* First block of output */
-} compression_state;
-
-static void
-png_text_compress_init(compression_state *comp, png_const_bytep input,
- png_alloc_size_t input_len)
-{
- comp->input = input;
- comp->input_len = input_len;
- comp->output_len = 0;
-}
-
-/* Compress the data in the compression state input */
-static int
-png_text_compress(png_structrp png_ptr, png_uint_32 chunk_name,
- compression_state *comp, png_uint_32 prefix_len)
-{
- int ret;
-
- /* To find the length of the output it is necessary to first compress the
- * input. The result is buffered rather than using the two-pass algorithm
- * that is used on the inflate side; deflate is assumed to be slower and a
- * PNG writer is assumed to have more memory available than a PNG reader.
- *
- * IMPLEMENTATION NOTE: the zlib API deflateBound() can be used to find an
- * upper limit on the output size, but it is always bigger than the input
- * size so it is likely to be more efficient to use this linked-list
- * approach.
- */
- ret = png_deflate_claim(png_ptr, chunk_name, comp->input_len);
-
- if (ret != Z_OK)
- return ret;
-
- /* Set up the compression buffers, we need a loop here to avoid overflowing a
- * uInt. Use ZLIB_IO_MAX to limit the input. The output is always limited
- * by the output buffer size, so there is no need to check that. Since this
- * is ANSI-C we know that an 'int', hence a uInt, is always at least 16 bits
- * in size.
- */
- {
- png_compression_bufferp *end = &png_ptr->zbuffer_list;
- png_alloc_size_t input_len = comp->input_len; /* may be zero! */
- png_uint_32 output_len;
-
- /* zlib updates these for us: */
- png_ptr->zstream.next_in = PNGZ_INPUT_CAST(comp->input);
- png_ptr->zstream.avail_in = 0; /* Set below */
- png_ptr->zstream.next_out = comp->output;
- png_ptr->zstream.avail_out = (sizeof comp->output);
-
- output_len = png_ptr->zstream.avail_out;
-
- do
- {
- uInt avail_in = ZLIB_IO_MAX;
-
- if (avail_in > input_len)
- avail_in = (uInt)input_len;
-
- input_len -= avail_in;
-
- png_ptr->zstream.avail_in = avail_in;
-
- if (png_ptr->zstream.avail_out == 0)
- {
- png_compression_buffer *next;
-
- /* Chunk data is limited to 2^31 bytes in length, so the prefix
- * length must be counted here.
- */
- if (output_len + prefix_len > PNG_UINT_31_MAX)
- {
- ret = Z_MEM_ERROR;
- break;
- }
-
- /* Need a new (malloc'ed) buffer, but there may be one present
- * already.
- */
- next = *end;
- if (next == NULL)
- {
- next = png_voidcast(png_compression_bufferp, png_malloc_base
- (png_ptr, PNG_COMPRESSION_BUFFER_SIZE(png_ptr)));
-
- if (next == NULL)
- {
- ret = Z_MEM_ERROR;
- break;
- }
-
- /* Link in this buffer (so that it will be freed later) */
- next->next = NULL;
- *end = next;
- }
-
- png_ptr->zstream.next_out = next->output;
- png_ptr->zstream.avail_out = png_ptr->zbuffer_size;
- output_len += png_ptr->zstream.avail_out;
-
- /* Move 'end' to the next buffer pointer. */
- end = &next->next;
- }
-
- /* Compress the data */
- ret = deflate(&png_ptr->zstream,
- input_len > 0 ? Z_NO_FLUSH : Z_FINISH);
-
- /* Claw back input data that was not consumed (because avail_in is
- * reset above every time round the loop).
- */
- input_len += png_ptr->zstream.avail_in;
- png_ptr->zstream.avail_in = 0; /* safety */
- }
- while (ret == Z_OK);
-
- /* There may be some space left in the last output buffer. This needs to
- * be subtracted from output_len.
- */
- output_len -= png_ptr->zstream.avail_out;
- png_ptr->zstream.avail_out = 0; /* safety */
- comp->output_len = output_len;
-
- /* Now double check the output length, put in a custom message if it is
- * too long. Otherwise ensure the z_stream::msg pointer is set to
- * something.
- */
- if (output_len + prefix_len >= PNG_UINT_31_MAX)
- {
- png_ptr->zstream.msg = PNGZ_MSG_CAST("compressed data too long");
- ret = Z_MEM_ERROR;
- }
-
- else
- png_zstream_error(png_ptr, ret);
-
- /* Reset zlib for another zTXt/iTXt or image data */
- png_ptr->zowner = 0;
-
- /* The only success case is Z_STREAM_END, input_len must be 0; if not this
- * is an internal error.
- */
- if (ret == Z_STREAM_END && input_len == 0)
- {
-#ifdef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
- /* Fix up the deflate header, if required */
- optimize_cmf(comp->output, comp->input_len);
-#endif
- /* But Z_OK is returned, not Z_STREAM_END; this allows the claim
- * function above to return Z_STREAM_END on an error (though it never
- * does in the current versions of zlib.)
- */
- return Z_OK;
- }
-
- else
- return ret;
- }
-}
-
-/* Ship the compressed text out via chunk writes */
-static void
-png_write_compressed_data_out(png_structrp png_ptr, compression_state *comp)
-{
- png_uint_32 output_len = comp->output_len;
- png_const_bytep output = comp->output;
- png_uint_32 avail = (sizeof comp->output);
- png_compression_buffer *next = png_ptr->zbuffer_list;
-
- for (;;)
- {
- if (avail > output_len)
- avail = output_len;
-
- png_write_chunk_data(png_ptr, output, avail);
-
- output_len -= avail;
-
- if (output_len == 0 || next == NULL)
- break;
-
- avail = png_ptr->zbuffer_size;
- output = next->output;
- next = next->next;
- }
-
- /* This is an internal error; 'next' must have been NULL! */
- if (output_len > 0)
- png_error(png_ptr, "error writing ancillary chunked compressed data");
-}
-#endif /* WRITE_COMPRESSED_TEXT */
-
-/* Write the IHDR chunk, and update the png_struct with the necessary
- * information. Note that the rest of this code depends upon this
- * information being correct.
- */
-void /* PRIVATE */
-png_write_IHDR(png_structrp png_ptr, png_uint_32 width, png_uint_32 height,
- int bit_depth, int color_type, int compression_type, int filter_type,
- int interlace_type)
-{
- png_byte buf[13]; /* Buffer to store the IHDR info */
- int is_invalid_depth;
-
- png_debug(1, "in png_write_IHDR");
-
- /* Check that we have valid input data from the application info */
- switch (color_type)
- {
- case PNG_COLOR_TYPE_GRAY:
- switch (bit_depth)
- {
- case 1:
- case 2:
- case 4:
- case 8:
-#ifdef PNG_WRITE_16BIT_SUPPORTED
- case 16:
-#endif
- png_ptr->channels = 1; break;
-
- default:
- png_error(png_ptr,
- "Invalid bit depth for grayscale image");
- }
- break;
-
- case PNG_COLOR_TYPE_RGB:
- is_invalid_depth = (bit_depth != 8);
-#ifdef PNG_WRITE_16BIT_SUPPORTED
- is_invalid_depth = (is_invalid_depth && bit_depth != 16);
-#endif
- if (is_invalid_depth)
- png_error(png_ptr, "Invalid bit depth for RGB image");
-
- png_ptr->channels = 3;
- break;
-
- case PNG_COLOR_TYPE_PALETTE:
- switch (bit_depth)
- {
- case 1:
- case 2:
- case 4:
- case 8:
- png_ptr->channels = 1;
- break;
-
- default:
- png_error(png_ptr, "Invalid bit depth for paletted image");
- }
- break;
-
- case PNG_COLOR_TYPE_GRAY_ALPHA:
- is_invalid_depth = (bit_depth != 8);
-#ifdef PNG_WRITE_16BIT_SUPPORTED
- is_invalid_depth = (is_invalid_depth && bit_depth != 16);
-#endif
- if (is_invalid_depth)
- png_error(png_ptr, "Invalid bit depth for grayscale+alpha image");
-
- png_ptr->channels = 2;
- break;
-
- case PNG_COLOR_TYPE_RGB_ALPHA:
- is_invalid_depth = (bit_depth != 8);
-#ifdef PNG_WRITE_16BIT_SUPPORTED
- is_invalid_depth = (is_invalid_depth && bit_depth != 16);
-#endif
- if (is_invalid_depth)
- png_error(png_ptr, "Invalid bit depth for RGBA image");
-
- png_ptr->channels = 4;
- break;
-
- default:
- png_error(png_ptr, "Invalid image color type specified");
- }
-
- if (compression_type != PNG_COMPRESSION_TYPE_BASE)
- {
- png_warning(png_ptr, "Invalid compression type specified");
- compression_type = PNG_COMPRESSION_TYPE_BASE;
- }
-
- /* Write filter_method 64 (intrapixel differencing) only if
- * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and
- * 2. Libpng did not write a PNG signature (this filter_method is only
- * used in PNG datastreams that are embedded in MNG datastreams) and
- * 3. The application called png_permit_mng_features with a mask that
- * included PNG_FLAG_MNG_FILTER_64 and
- * 4. The filter_method is 64 and
- * 5. The color_type is RGB or RGBA
- */
- if (
-#ifdef PNG_MNG_FEATURES_SUPPORTED
- !((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) != 0 &&
- ((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) == 0) &&
- (color_type == PNG_COLOR_TYPE_RGB ||
- color_type == PNG_COLOR_TYPE_RGB_ALPHA) &&
- (filter_type == PNG_INTRAPIXEL_DIFFERENCING)) &&
-#endif
- filter_type != PNG_FILTER_TYPE_BASE)
- {
- png_warning(png_ptr, "Invalid filter type specified");
- filter_type = PNG_FILTER_TYPE_BASE;
- }
-
-#ifdef PNG_WRITE_INTERLACING_SUPPORTED
- if (interlace_type != PNG_INTERLACE_NONE &&
- interlace_type != PNG_INTERLACE_ADAM7)
- {
- png_warning(png_ptr, "Invalid interlace type specified");
- interlace_type = PNG_INTERLACE_ADAM7;
- }
-#else
- interlace_type=PNG_INTERLACE_NONE;
-#endif
-
- /* Save the relevant information */
- png_ptr->bit_depth = (png_byte)bit_depth;
- png_ptr->color_type = (png_byte)color_type;
- png_ptr->interlaced = (png_byte)interlace_type;
-#ifdef PNG_MNG_FEATURES_SUPPORTED
- png_ptr->filter_type = (png_byte)filter_type;
-#endif
- png_ptr->compression_type = (png_byte)compression_type;
- png_ptr->width = width;
- png_ptr->height = height;
-
- png_ptr->pixel_depth = (png_byte)(bit_depth * png_ptr->channels);
- png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, width);
- /* Set the usr info, so any transformations can modify it */
- png_ptr->usr_width = png_ptr->width;
- png_ptr->usr_bit_depth = png_ptr->bit_depth;
- png_ptr->usr_channels = png_ptr->channels;
-
- /* Pack the header information into the buffer */
- png_save_uint_32(buf, width);
- png_save_uint_32(buf + 4, height);
- buf[8] = (png_byte)bit_depth;
- buf[9] = (png_byte)color_type;
- buf[10] = (png_byte)compression_type;
- buf[11] = (png_byte)filter_type;
- buf[12] = (png_byte)interlace_type;
-
- /* Write the chunk */
- png_write_complete_chunk(png_ptr, png_IHDR, buf, 13);
-
- if ((png_ptr->do_filter) == PNG_NO_FILTERS)
- {
- if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE ||
- png_ptr->bit_depth < 8)
- png_ptr->do_filter = PNG_FILTER_NONE;
-
- else
- png_ptr->do_filter = PNG_ALL_FILTERS;
- }
-
- png_ptr->mode = PNG_HAVE_IHDR; /* not READY_FOR_ZTXT */
-}
-
-/* Write the palette. We are careful not to trust png_color to be in the
- * correct order for PNG, so people can redefine it to any convenient
- * structure.
- */
-void /* PRIVATE */
-png_write_PLTE(png_structrp png_ptr, png_const_colorp palette,
- png_uint_32 num_pal)
-{
- png_uint_32 max_palette_length, i;
- png_const_colorp pal_ptr;
- png_byte buf[3];
-
- png_debug(1, "in png_write_PLTE");
-
- max_palette_length = (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) ?
- (1 << png_ptr->bit_depth) : PNG_MAX_PALETTE_LENGTH;
-
- if ((
-#ifdef PNG_MNG_FEATURES_SUPPORTED
- (png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) == 0 &&
-#endif
- num_pal == 0) || num_pal > max_palette_length)
- {
- if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
- {
- png_error(png_ptr, "Invalid number of colors in palette");
- }
-
- else
- {
- png_warning(png_ptr, "Invalid number of colors in palette");
- return;
- }
- }
-
- if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) == 0)
- {
- png_warning(png_ptr,
- "Ignoring request to write a PLTE chunk in grayscale PNG");
-
- return;
- }
-
- png_ptr->num_palette = (png_uint_16)num_pal;
- png_debug1(3, "num_palette = %d", png_ptr->num_palette);
-
- png_write_chunk_header(png_ptr, png_PLTE, (png_uint_32)(num_pal * 3));
-#ifdef PNG_POINTER_INDEXING_SUPPORTED
-
- for (i = 0, pal_ptr = palette; i < num_pal; i++, pal_ptr++)
- {
- buf[0] = pal_ptr->red;
- buf[1] = pal_ptr->green;
- buf[2] = pal_ptr->blue;
- png_write_chunk_data(png_ptr, buf, 3);
- }
-
-#else
- /* This is a little slower but some buggy compilers need to do this
- * instead
- */
- pal_ptr=palette;
-
- for (i = 0; i < num_pal; i++)
- {
- buf[0] = pal_ptr[i].red;
- buf[1] = pal_ptr[i].green;
- buf[2] = pal_ptr[i].blue;
- png_write_chunk_data(png_ptr, buf, 3);
- }
-
-#endif
- png_write_chunk_end(png_ptr);
- png_ptr->mode |= PNG_HAVE_PLTE;
-}
-
-/* This is similar to png_text_compress, above, except that it does not require
- * all of the data at once and, instead of buffering the compressed result,
- * writes it as IDAT chunks. Unlike png_text_compress it *can* png_error out
- * because it calls the write interface. As a result it does its own error
- * reporting and does not return an error code. In the event of error it will
- * just call png_error. The input data length may exceed 32-bits. The 'flush'
- * parameter is exactly the same as that to deflate, with the following
- * meanings:
- *
- * Z_NO_FLUSH: normal incremental output of compressed data
- * Z_SYNC_FLUSH: do a SYNC_FLUSH, used by png_write_flush
- * Z_FINISH: this is the end of the input, do a Z_FINISH and clean up
- *
- * The routine manages the acquire and release of the png_ptr->zstream by
- * checking and (at the end) clearing png_ptr->zowner; it does some sanity
- * checks on the 'mode' flags while doing this.
- */
-void /* PRIVATE */
-png_compress_IDAT(png_structrp png_ptr, png_const_bytep input,
- png_alloc_size_t input_len, int flush)
-{
- if (png_ptr->zowner != png_IDAT)
- {
- /* First time. Ensure we have a temporary buffer for compression and
- * trim the buffer list if it has more than one entry to free memory.
- * If 'WRITE_COMPRESSED_TEXT' is not set the list will never have been
- * created at this point, but the check here is quick and safe.
- */
- if (png_ptr->zbuffer_list == NULL)
- {
- png_ptr->zbuffer_list = png_voidcast(png_compression_bufferp,
- png_malloc(png_ptr, PNG_COMPRESSION_BUFFER_SIZE(png_ptr)));
- png_ptr->zbuffer_list->next = NULL;
- }
-
- else
- png_free_buffer_list(png_ptr, &png_ptr->zbuffer_list->next);
-
- /* It is a terminal error if we can't claim the zstream. */
- if (png_deflate_claim(png_ptr, png_IDAT, png_image_size(png_ptr)) != Z_OK)
- png_error(png_ptr, png_ptr->zstream.msg);
-
- /* The output state is maintained in png_ptr->zstream, so it must be
- * initialized here after the claim.
- */
- png_ptr->zstream.next_out = png_ptr->zbuffer_list->output;
- png_ptr->zstream.avail_out = png_ptr->zbuffer_size;
- }
-
- /* Now loop reading and writing until all the input is consumed or an error
- * terminates the operation. The _out values are maintained across calls to
- * this function, but the input must be reset each time.
- */
- png_ptr->zstream.next_in = PNGZ_INPUT_CAST(input);
- png_ptr->zstream.avail_in = 0; /* set below */
- for (;;)
- {
- int ret;
-
- /* INPUT: from the row data */
- uInt avail = ZLIB_IO_MAX;
-
- if (avail > input_len)
- avail = (uInt)input_len; /* safe because of the check */
-
- png_ptr->zstream.avail_in = avail;
- input_len -= avail;
-
- ret = deflate(&png_ptr->zstream, input_len > 0 ? Z_NO_FLUSH : flush);
-
- /* Include as-yet unconsumed input */
- input_len += png_ptr->zstream.avail_in;
- png_ptr->zstream.avail_in = 0;
-
- /* OUTPUT: write complete IDAT chunks when avail_out drops to zero. Note
- * that these two zstream fields are preserved across the calls, therefore
- * there is no need to set these up on entry to the loop.
- */
- if (png_ptr->zstream.avail_out == 0)
- {
- png_bytep data = png_ptr->zbuffer_list->output;
- uInt size = png_ptr->zbuffer_size;
-
- /* Write an IDAT containing the data then reset the buffer. The
- * first IDAT may need deflate header optimization.
- */
-#ifdef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
- if ((png_ptr->mode & PNG_HAVE_IDAT) == 0 &&
- png_ptr->compression_type == PNG_COMPRESSION_TYPE_BASE)
- optimize_cmf(data, png_image_size(png_ptr));
-#endif
-
- if (size > 0)
- png_write_complete_chunk(png_ptr, png_IDAT, data, size);
- png_ptr->mode |= PNG_HAVE_IDAT;
-
- png_ptr->zstream.next_out = data;
- png_ptr->zstream.avail_out = size;
-
- /* For SYNC_FLUSH or FINISH it is essential to keep calling zlib with
- * the same flush parameter until it has finished output, for NO_FLUSH
- * it doesn't matter.
- */
- if (ret == Z_OK && flush != Z_NO_FLUSH)
- continue;
- }
-
- /* The order of these checks doesn't matter much; it just affects which
- * possible error might be detected if multiple things go wrong at once.
- */
- if (ret == Z_OK) /* most likely return code! */
- {
- /* If all the input has been consumed then just return. If Z_FINISH
- * was used as the flush parameter something has gone wrong if we get
- * here.
- */
- if (input_len == 0)
- {
- if (flush == Z_FINISH)
- png_error(png_ptr, "Z_OK on Z_FINISH with output space");
-
- return;
- }
- }
-
- else if (ret == Z_STREAM_END && flush == Z_FINISH)
- {
- /* This is the end of the IDAT data; any pending output must be
- * flushed. For small PNG files we may still be at the beginning.
- */
- png_bytep data = png_ptr->zbuffer_list->output;
- uInt size = png_ptr->zbuffer_size - png_ptr->zstream.avail_out;
-
-#ifdef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
- if ((png_ptr->mode & PNG_HAVE_IDAT) == 0 &&
- png_ptr->compression_type == PNG_COMPRESSION_TYPE_BASE)
- optimize_cmf(data, png_image_size(png_ptr));
-#endif
-
- if (size > 0)
- png_write_complete_chunk(png_ptr, png_IDAT, data, size);
- png_ptr->zstream.avail_out = 0;
- png_ptr->zstream.next_out = NULL;
- png_ptr->mode |= PNG_HAVE_IDAT | PNG_AFTER_IDAT;
-
- png_ptr->zowner = 0; /* Release the stream */
- return;
- }
-
- else
- {
- /* This is an error condition. */
- png_zstream_error(png_ptr, ret);
- png_error(png_ptr, png_ptr->zstream.msg);
- }
- }
-}
-
-/* Write an IEND chunk */
-void /* PRIVATE */
-png_write_IEND(png_structrp png_ptr)
-{
- png_debug(1, "in png_write_IEND");
-
- png_write_complete_chunk(png_ptr, png_IEND, NULL, 0);
- png_ptr->mode |= PNG_HAVE_IEND;
-}
-
-#ifdef PNG_WRITE_gAMA_SUPPORTED
-/* Write a gAMA chunk */
-void /* PRIVATE */
-png_write_gAMA_fixed(png_structrp png_ptr, png_fixed_point file_gamma)
-{
- png_byte buf[4];
-
- png_debug(1, "in png_write_gAMA");
-
- /* file_gamma is saved in 1/100,000ths */
- png_save_uint_32(buf, (png_uint_32)file_gamma);
- png_write_complete_chunk(png_ptr, png_gAMA, buf, 4);
-}
-#endif
-
-#ifdef PNG_WRITE_sRGB_SUPPORTED
-/* Write a sRGB chunk */
-void /* PRIVATE */
-png_write_sRGB(png_structrp png_ptr, int srgb_intent)
-{
- png_byte buf[1];
-
- png_debug(1, "in png_write_sRGB");
-
- if (srgb_intent >= PNG_sRGB_INTENT_LAST)
- png_warning(png_ptr,
- "Invalid sRGB rendering intent specified");
-
- buf[0]=(png_byte)srgb_intent;
- png_write_complete_chunk(png_ptr, png_sRGB, buf, 1);
-}
-#endif
-
-#ifdef PNG_WRITE_iCCP_SUPPORTED
-/* Write an iCCP chunk */
-void /* PRIVATE */
-png_write_iCCP(png_structrp png_ptr, png_const_charp name,
- png_const_bytep profile)
-{
- png_uint_32 name_len;
- png_uint_32 profile_len;
- png_byte new_name[81]; /* 1 byte for the compression byte */
- compression_state comp;
- png_uint_32 temp;
-
- png_debug(1, "in png_write_iCCP");
-
- /* These are all internal problems: the profile should have been checked
- * before when it was stored.
- */
- if (profile == NULL)
- png_error(png_ptr, "No profile for iCCP chunk"); /* internal error */
-
- profile_len = png_get_uint_32(profile);
-
- if (profile_len < 132)
- png_error(png_ptr, "ICC profile too short");
-
- temp = (png_uint_32) (*(profile+8));
- if (temp > 3 && (profile_len & 0x03))
- png_error(png_ptr, "ICC profile length invalid (not a multiple of 4)");
-
- {
- png_uint_32 embedded_profile_len = png_get_uint_32(profile);
-
- if (profile_len != embedded_profile_len)
- png_error(png_ptr, "Profile length does not match profile");
- }
-
- name_len = png_check_keyword(png_ptr, name, new_name);
-
- if (name_len == 0)
- png_error(png_ptr, "iCCP: invalid keyword");
-
- new_name[++name_len] = PNG_COMPRESSION_TYPE_BASE;
-
- /* Make sure we include the NULL after the name and the compression type */
- ++name_len;
-
- png_text_compress_init(&comp, profile, profile_len);
-
- /* Allow for keyword terminator and compression byte */
- if (png_text_compress(png_ptr, png_iCCP, &comp, name_len) != Z_OK)
- png_error(png_ptr, png_ptr->zstream.msg);
-
- png_write_chunk_header(png_ptr, png_iCCP, name_len + comp.output_len);
-
- png_write_chunk_data(png_ptr, new_name, name_len);
-
- png_write_compressed_data_out(png_ptr, &comp);
-
- png_write_chunk_end(png_ptr);
-}
-#endif
-
-#ifdef PNG_WRITE_sPLT_SUPPORTED
-/* Write a sPLT chunk */
-void /* PRIVATE */
-png_write_sPLT(png_structrp png_ptr, png_const_sPLT_tp spalette)
-{
- png_uint_32 name_len;
- png_byte new_name[80];
- png_byte entrybuf[10];
- size_t entry_size = (spalette->depth == 8 ? 6 : 10);
- size_t palette_size = entry_size * (size_t)spalette->nentries;
- png_sPLT_entryp ep;
-#ifndef PNG_POINTER_INDEXING_SUPPORTED
- int i;
-#endif
-
- png_debug(1, "in png_write_sPLT");
-
- name_len = png_check_keyword(png_ptr, spalette->name, new_name);
-
- if (name_len == 0)
- png_error(png_ptr, "sPLT: invalid keyword");
-
- /* Make sure we include the NULL after the name */
- png_write_chunk_header(png_ptr, png_sPLT,
- (png_uint_32)(name_len + 2 + palette_size));
-
- png_write_chunk_data(png_ptr, (png_bytep)new_name, (size_t)(name_len + 1));
-
- png_write_chunk_data(png_ptr, &spalette->depth, 1);
-
- /* Loop through each palette entry, writing appropriately */
-#ifdef PNG_POINTER_INDEXING_SUPPORTED
- for (ep = spalette->entries; ep<spalette->entries + spalette->nentries; ep++)
- {
- if (spalette->depth == 8)
- {
- entrybuf[0] = (png_byte)ep->red;
- entrybuf[1] = (png_byte)ep->green;
- entrybuf[2] = (png_byte)ep->blue;
- entrybuf[3] = (png_byte)ep->alpha;
- png_save_uint_16(entrybuf + 4, ep->frequency);
- }
-
- else
- {
- png_save_uint_16(entrybuf + 0, ep->red);
- png_save_uint_16(entrybuf + 2, ep->green);
- png_save_uint_16(entrybuf + 4, ep->blue);
- png_save_uint_16(entrybuf + 6, ep->alpha);
- png_save_uint_16(entrybuf + 8, ep->frequency);
- }
-
- png_write_chunk_data(png_ptr, entrybuf, entry_size);
- }
-#else
- ep=spalette->entries;
- for (i = 0; i>spalette->nentries; i++)
- {
- if (spalette->depth == 8)
- {
- entrybuf[0] = (png_byte)ep[i].red;
- entrybuf[1] = (png_byte)ep[i].green;
- entrybuf[2] = (png_byte)ep[i].blue;
- entrybuf[3] = (png_byte)ep[i].alpha;
- png_save_uint_16(entrybuf + 4, ep[i].frequency);
- }
-
- else
- {
- png_save_uint_16(entrybuf + 0, ep[i].red);
- png_save_uint_16(entrybuf + 2, ep[i].green);
- png_save_uint_16(entrybuf + 4, ep[i].blue);
- png_save_uint_16(entrybuf + 6, ep[i].alpha);
- png_save_uint_16(entrybuf + 8, ep[i].frequency);
- }
-
- png_write_chunk_data(png_ptr, entrybuf, entry_size);
- }
-#endif
-
- png_write_chunk_end(png_ptr);
-}
-#endif
-
-#ifdef PNG_WRITE_sBIT_SUPPORTED
-/* Write the sBIT chunk */
-void /* PRIVATE */
-png_write_sBIT(png_structrp png_ptr, png_const_color_8p sbit, int color_type)
-{
- png_byte buf[4];
- size_t size;
-
- png_debug(1, "in png_write_sBIT");
-
- /* Make sure we don't depend upon the order of PNG_COLOR_8 */
- if ((color_type & PNG_COLOR_MASK_COLOR) != 0)
- {
- png_byte maxbits;
-
- maxbits = (png_byte)(color_type==PNG_COLOR_TYPE_PALETTE ? 8 :
- png_ptr->usr_bit_depth);
-
- if (sbit->red == 0 || sbit->red > maxbits ||
- sbit->green == 0 || sbit->green > maxbits ||
- sbit->blue == 0 || sbit->blue > maxbits)
- {
- png_warning(png_ptr, "Invalid sBIT depth specified");
- return;
- }
-
- buf[0] = sbit->red;
- buf[1] = sbit->green;
- buf[2] = sbit->blue;
- size = 3;
- }
-
- else
- {
- if (sbit->gray == 0 || sbit->gray > png_ptr->usr_bit_depth)
- {
- png_warning(png_ptr, "Invalid sBIT depth specified");
- return;
- }
-
- buf[0] = sbit->gray;
- size = 1;
- }
-
- if ((color_type & PNG_COLOR_MASK_ALPHA) != 0)
- {
- if (sbit->alpha == 0 || sbit->alpha > png_ptr->usr_bit_depth)
- {
- png_warning(png_ptr, "Invalid sBIT depth specified");
- return;
- }
-
- buf[size++] = sbit->alpha;
- }
-
- png_write_complete_chunk(png_ptr, png_sBIT, buf, size);
-}
-#endif
-
-#ifdef PNG_WRITE_cHRM_SUPPORTED
-/* Write the cHRM chunk */
-void /* PRIVATE */
-png_write_cHRM_fixed(png_structrp png_ptr, const png_xy *xy)
-{
- png_byte buf[32];
-
- png_debug(1, "in png_write_cHRM");
-
- /* Each value is saved in 1/100,000ths */
- png_save_int_32(buf, xy->whitex);
- png_save_int_32(buf + 4, xy->whitey);
-
- png_save_int_32(buf + 8, xy->redx);
- png_save_int_32(buf + 12, xy->redy);
-
- png_save_int_32(buf + 16, xy->greenx);
- png_save_int_32(buf + 20, xy->greeny);
-
- png_save_int_32(buf + 24, xy->bluex);
- png_save_int_32(buf + 28, xy->bluey);
-
- png_write_complete_chunk(png_ptr, png_cHRM, buf, 32);
-}
-#endif
-
-#ifdef PNG_WRITE_tRNS_SUPPORTED
-/* Write the tRNS chunk */
-void /* PRIVATE */
-png_write_tRNS(png_structrp png_ptr, png_const_bytep trans_alpha,
- png_const_color_16p tran, int num_trans, int color_type)
-{
- png_byte buf[6];
-
- png_debug(1, "in png_write_tRNS");
-
- if (color_type == PNG_COLOR_TYPE_PALETTE)
- {
- if (num_trans <= 0 || num_trans > (int)png_ptr->num_palette)
- {
- png_app_warning(png_ptr,
- "Invalid number of transparent colors specified");
- return;
- }
-
- /* Write the chunk out as it is */
- png_write_complete_chunk(png_ptr, png_tRNS, trans_alpha,
- (size_t)num_trans);
- }
-
- else if (color_type == PNG_COLOR_TYPE_GRAY)
- {
- /* One 16-bit value */
- if (tran->gray >= (1 << png_ptr->bit_depth))
- {
- png_app_warning(png_ptr,
- "Ignoring attempt to write tRNS chunk out-of-range for bit_depth");
-
- return;
- }
-
- png_save_uint_16(buf, tran->gray);
- png_write_complete_chunk(png_ptr, png_tRNS, buf, 2);
- }
-
- else if (color_type == PNG_COLOR_TYPE_RGB)
- {
- /* Three 16-bit values */
- png_save_uint_16(buf, tran->red);
- png_save_uint_16(buf + 2, tran->green);
- png_save_uint_16(buf + 4, tran->blue);
-#ifdef PNG_WRITE_16BIT_SUPPORTED
- if (png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4]) != 0)
-#else
- if ((buf[0] | buf[2] | buf[4]) != 0)
-#endif
- {
- png_app_warning(png_ptr,
- "Ignoring attempt to write 16-bit tRNS chunk when bit_depth is 8");
- return;
- }
-
- png_write_complete_chunk(png_ptr, png_tRNS, buf, 6);
- }
-
- else
- {
- png_app_warning(png_ptr, "Can't write tRNS with an alpha channel");
- }
-}
-#endif
-
-#ifdef PNG_WRITE_bKGD_SUPPORTED
-/* Write the background chunk */
-void /* PRIVATE */
-png_write_bKGD(png_structrp png_ptr, png_const_color_16p back, int color_type)
-{
- png_byte buf[6];
-
- png_debug(1, "in png_write_bKGD");
-
- if (color_type == PNG_COLOR_TYPE_PALETTE)
- {
- if (
-#ifdef PNG_MNG_FEATURES_SUPPORTED
- (png_ptr->num_palette != 0 ||
- (png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) == 0) &&
-#endif
- back->index >= png_ptr->num_palette)
- {
- png_warning(png_ptr, "Invalid background palette index");
- return;
- }
-
- buf[0] = back->index;
- png_write_complete_chunk(png_ptr, png_bKGD, buf, 1);
- }
-
- else if ((color_type & PNG_COLOR_MASK_COLOR) != 0)
- {
- png_save_uint_16(buf, back->red);
- png_save_uint_16(buf + 2, back->green);
- png_save_uint_16(buf + 4, back->blue);
-#ifdef PNG_WRITE_16BIT_SUPPORTED
- if (png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4]) != 0)
-#else
- if ((buf[0] | buf[2] | buf[4]) != 0)
-#endif
- {
- png_warning(png_ptr,
- "Ignoring attempt to write 16-bit bKGD chunk "
- "when bit_depth is 8");
-
- return;
- }
-
- png_write_complete_chunk(png_ptr, png_bKGD, buf, 6);
- }
-
- else
- {
- if (back->gray >= (1 << png_ptr->bit_depth))
- {
- png_warning(png_ptr,
- "Ignoring attempt to write bKGD chunk out-of-range for bit_depth");
-
- return;
- }
-
- png_save_uint_16(buf, back->gray);
- png_write_complete_chunk(png_ptr, png_bKGD, buf, 2);
- }
-}
-#endif
-
-#ifdef PNG_WRITE_eXIf_SUPPORTED
-/* Write the Exif data */
-void /* PRIVATE */
-png_write_eXIf(png_structrp png_ptr, png_bytep exif, int num_exif)
-{
- int i;
- png_byte buf[1];
-
- png_debug(1, "in png_write_eXIf");
-
- png_write_chunk_header(png_ptr, png_eXIf, (png_uint_32)(num_exif));
-
- for (i = 0; i < num_exif; i++)
- {
- buf[0] = exif[i];
- png_write_chunk_data(png_ptr, buf, 1);
- }
-
- png_write_chunk_end(png_ptr);
-}
-#endif
-
-#ifdef PNG_WRITE_hIST_SUPPORTED
-/* Write the histogram */
-void /* PRIVATE */
-png_write_hIST(png_structrp png_ptr, png_const_uint_16p hist, int num_hist)
-{
- int i;
- png_byte buf[3];
-
- png_debug(1, "in png_write_hIST");
-
- if (num_hist > (int)png_ptr->num_palette)
- {
- png_debug2(3, "num_hist = %d, num_palette = %d", num_hist,
- png_ptr->num_palette);
-
- png_warning(png_ptr, "Invalid number of histogram entries specified");
- return;
- }
-
- png_write_chunk_header(png_ptr, png_hIST, (png_uint_32)(num_hist * 2));
-
- for (i = 0; i < num_hist; i++)
- {
- png_save_uint_16(buf, hist[i]);
- png_write_chunk_data(png_ptr, buf, 2);
- }
-
- png_write_chunk_end(png_ptr);
-}
-#endif
-
-#ifdef PNG_WRITE_tEXt_SUPPORTED
-/* Write a tEXt chunk */
-void /* PRIVATE */
-png_write_tEXt(png_structrp png_ptr, png_const_charp key, png_const_charp text,
- size_t text_len)
-{
- png_uint_32 key_len;
- png_byte new_key[80];
-
- png_debug(1, "in png_write_tEXt");
-
- key_len = png_check_keyword(png_ptr, key, new_key);
-
- if (key_len == 0)
- png_error(png_ptr, "tEXt: invalid keyword");
-
- if (text == NULL || *text == '\0')
- text_len = 0;
-
- else
- text_len = strlen(text);
-
- if (text_len > PNG_UINT_31_MAX - (key_len+1))
- png_error(png_ptr, "tEXt: text too long");
-
- /* Make sure we include the 0 after the key */
- png_write_chunk_header(png_ptr, png_tEXt,
- (png_uint_32)/*checked above*/(key_len + text_len + 1));
- /*
- * We leave it to the application to meet PNG-1.0 requirements on the
- * contents of the text. PNG-1.0 through PNG-1.2 discourage the use of
- * any non-Latin-1 characters except for NEWLINE. ISO PNG will forbid them.
- * The NUL character is forbidden by PNG-1.0 through PNG-1.2 and ISO PNG.
- */
- png_write_chunk_data(png_ptr, new_key, key_len + 1);
-
- if (text_len != 0)
- png_write_chunk_data(png_ptr, (png_const_bytep)text, text_len);
-
- png_write_chunk_end(png_ptr);
-}
-#endif
-
-#ifdef PNG_WRITE_zTXt_SUPPORTED
-/* Write a compressed text chunk */
-void /* PRIVATE */
-png_write_zTXt(png_structrp png_ptr, png_const_charp key, png_const_charp text,
- int compression)
-{
- png_uint_32 key_len;
- png_byte new_key[81];
- compression_state comp;
-
- png_debug(1, "in png_write_zTXt");
-
- if (compression == PNG_TEXT_COMPRESSION_NONE)
- {
- png_write_tEXt(png_ptr, key, text, 0);
- return;
- }
-
- if (compression != PNG_TEXT_COMPRESSION_zTXt)
- png_error(png_ptr, "zTXt: invalid compression type");
-
- key_len = png_check_keyword(png_ptr, key, new_key);
-
- if (key_len == 0)
- png_error(png_ptr, "zTXt: invalid keyword");
-
- /* Add the compression method and 1 for the keyword separator. */
- new_key[++key_len] = PNG_COMPRESSION_TYPE_BASE;
- ++key_len;
-
- /* Compute the compressed data; do it now for the length */
- png_text_compress_init(&comp, (png_const_bytep)text,
- text == NULL ? 0 : strlen(text));
-
- if (png_text_compress(png_ptr, png_zTXt, &comp, key_len) != Z_OK)
- png_error(png_ptr, png_ptr->zstream.msg);
-
- /* Write start of chunk */
- png_write_chunk_header(png_ptr, png_zTXt, key_len + comp.output_len);
-
- /* Write key */
- png_write_chunk_data(png_ptr, new_key, key_len);
-
- /* Write the compressed data */
- png_write_compressed_data_out(png_ptr, &comp);
-
- /* Close the chunk */
- png_write_chunk_end(png_ptr);
-}
-#endif
-
-#ifdef PNG_WRITE_iTXt_SUPPORTED
-/* Write an iTXt chunk */
-void /* PRIVATE */
-png_write_iTXt(png_structrp png_ptr, int compression, png_const_charp key,
- png_const_charp lang, png_const_charp lang_key, png_const_charp text)
-{
- png_uint_32 key_len, prefix_len;
- size_t lang_len, lang_key_len;
- png_byte new_key[82];
- compression_state comp;
-
- png_debug(1, "in png_write_iTXt");
-
- key_len = png_check_keyword(png_ptr, key, new_key);
-
- if (key_len == 0)
- png_error(png_ptr, "iTXt: invalid keyword");
-
- /* Set the compression flag */
- switch (compression)
- {
- case PNG_ITXT_COMPRESSION_NONE:
- case PNG_TEXT_COMPRESSION_NONE:
- compression = new_key[++key_len] = 0; /* no compression */
- break;
-
- case PNG_TEXT_COMPRESSION_zTXt:
- case PNG_ITXT_COMPRESSION_zTXt:
- compression = new_key[++key_len] = 1; /* compressed */
- break;
-
- default:
- png_error(png_ptr, "iTXt: invalid compression");
- }
-
- new_key[++key_len] = PNG_COMPRESSION_TYPE_BASE;
- ++key_len; /* for the keywod separator */
-
- /* We leave it to the application to meet PNG-1.0 requirements on the
- * contents of the text. PNG-1.0 through PNG-1.2 discourage the use of
- * any non-Latin-1 characters except for NEWLINE. ISO PNG, however,
- * specifies that the text is UTF-8 and this really doesn't require any
- * checking.
- *
- * The NUL character is forbidden by PNG-1.0 through PNG-1.2 and ISO PNG.
- *
- * TODO: validate the language tag correctly (see the spec.)
- */
- if (lang == NULL) lang = ""; /* empty language is valid */
- lang_len = strlen(lang)+1;
- if (lang_key == NULL) lang_key = ""; /* may be empty */
- lang_key_len = strlen(lang_key)+1;
- if (text == NULL) text = ""; /* may be empty */
-
- prefix_len = key_len;
- if (lang_len > PNG_UINT_31_MAX-prefix_len)
- prefix_len = PNG_UINT_31_MAX;
- else
- prefix_len = (png_uint_32)(prefix_len + lang_len);
-
- if (lang_key_len > PNG_UINT_31_MAX-prefix_len)
- prefix_len = PNG_UINT_31_MAX;
- else
- prefix_len = (png_uint_32)(prefix_len + lang_key_len);
-
- png_text_compress_init(&comp, (png_const_bytep)text, strlen(text));
-
- if (compression != 0)
- {
- if (png_text_compress(png_ptr, png_iTXt, &comp, prefix_len) != Z_OK)
- png_error(png_ptr, png_ptr->zstream.msg);
- }
-
- else
- {
- if (comp.input_len > PNG_UINT_31_MAX-prefix_len)
- png_error(png_ptr, "iTXt: uncompressed text too long");
-
- /* So the string will fit in a chunk: */
- comp.output_len = (png_uint_32)/*SAFE*/comp.input_len;
- }
-
- png_write_chunk_header(png_ptr, png_iTXt, comp.output_len + prefix_len);
-
- png_write_chunk_data(png_ptr, new_key, key_len);
-
- png_write_chunk_data(png_ptr, (png_const_bytep)lang, lang_len);
-
- png_write_chunk_data(png_ptr, (png_const_bytep)lang_key, lang_key_len);
-
- if (compression != 0)
- png_write_compressed_data_out(png_ptr, &comp);
-
- else
- png_write_chunk_data(png_ptr, (png_const_bytep)text, comp.output_len);
-
- png_write_chunk_end(png_ptr);
-}
-#endif
-
-#ifdef PNG_WRITE_oFFs_SUPPORTED
-/* Write the oFFs chunk */
-void /* PRIVATE */
-png_write_oFFs(png_structrp png_ptr, png_int_32 x_offset, png_int_32 y_offset,
- int unit_type)
-{
- png_byte buf[9];
-
- png_debug(1, "in png_write_oFFs");
-
- if (unit_type >= PNG_OFFSET_LAST)
- png_warning(png_ptr, "Unrecognized unit type for oFFs chunk");
-
- png_save_int_32(buf, x_offset);
- png_save_int_32(buf + 4, y_offset);
- buf[8] = (png_byte)unit_type;
-
- png_write_complete_chunk(png_ptr, png_oFFs, buf, 9);
-}
-#endif
-#ifdef PNG_WRITE_pCAL_SUPPORTED
-/* Write the pCAL chunk (described in the PNG extensions document) */
-void /* PRIVATE */
-png_write_pCAL(png_structrp png_ptr, png_charp purpose, png_int_32 X0,
- png_int_32 X1, int type, int nparams, png_const_charp units,
- png_charpp params)
-{
- png_uint_32 purpose_len;
- size_t units_len, total_len;
- png_size_tp params_len;
- png_byte buf[10];
- png_byte new_purpose[80];
- int i;
-
- png_debug1(1, "in png_write_pCAL (%d parameters)", nparams);
-
- if (type >= PNG_EQUATION_LAST)
- png_error(png_ptr, "Unrecognized equation type for pCAL chunk");
-
- purpose_len = png_check_keyword(png_ptr, purpose, new_purpose);
-
- if (purpose_len == 0)
- png_error(png_ptr, "pCAL: invalid keyword");
-
- ++purpose_len; /* terminator */
-
- png_debug1(3, "pCAL purpose length = %d", (int)purpose_len);
- units_len = strlen(units) + (nparams == 0 ? 0 : 1);
- png_debug1(3, "pCAL units length = %d", (int)units_len);
- total_len = purpose_len + units_len + 10;
-
- params_len = (png_size_tp)png_malloc(png_ptr,
- (png_alloc_size_t)((png_alloc_size_t)nparams * (sizeof (size_t))));
-
- /* Find the length of each parameter, making sure we don't count the
- * null terminator for the last parameter.
- */
- for (i = 0; i < nparams; i++)
- {
- params_len[i] = strlen(params[i]) + (i == nparams - 1 ? 0 : 1);
- png_debug2(3, "pCAL parameter %d length = %lu", i,
- (unsigned long)params_len[i]);
- total_len += params_len[i];
- }
-
- png_debug1(3, "pCAL total length = %d", (int)total_len);
- png_write_chunk_header(png_ptr, png_pCAL, (png_uint_32)total_len);
- png_write_chunk_data(png_ptr, new_purpose, purpose_len);
- png_save_int_32(buf, X0);
- png_save_int_32(buf + 4, X1);
- buf[8] = (png_byte)type;
- buf[9] = (png_byte)nparams;
- png_write_chunk_data(png_ptr, buf, 10);
- png_write_chunk_data(png_ptr, (png_const_bytep)units, (size_t)units_len);
-
- for (i = 0; i < nparams; i++)
- {
- png_write_chunk_data(png_ptr, (png_const_bytep)params[i], params_len[i]);
- }
-
- png_free(png_ptr, params_len);
- png_write_chunk_end(png_ptr);
-}
-#endif
-
-#ifdef PNG_WRITE_sCAL_SUPPORTED
-/* Write the sCAL chunk */
-void /* PRIVATE */
-png_write_sCAL_s(png_structrp png_ptr, int unit, png_const_charp width,
- png_const_charp height)
-{
- png_byte buf[64];
- size_t wlen, hlen, total_len;
-
- png_debug(1, "in png_write_sCAL_s");
-
- wlen = strlen(width);
- hlen = strlen(height);
- total_len = wlen + hlen + 2;
-
- if (total_len > 64)
- {
- png_warning(png_ptr, "Can't write sCAL (buffer too small)");
- return;
- }
-
- buf[0] = (png_byte)unit;
- memcpy(buf + 1, width, wlen + 1); /* Append the '\0' here */
- memcpy(buf + wlen + 2, height, hlen); /* Do NOT append the '\0' here */
-
- png_debug1(3, "sCAL total length = %u", (unsigned int)total_len);
- png_write_complete_chunk(png_ptr, png_sCAL, buf, total_len);
-}
-#endif
-
-#ifdef PNG_WRITE_pHYs_SUPPORTED
-/* Write the pHYs chunk */
-void /* PRIVATE */
-png_write_pHYs(png_structrp png_ptr, png_uint_32 x_pixels_per_unit,
- png_uint_32 y_pixels_per_unit,
- int unit_type)
-{
- png_byte buf[9];
-
- png_debug(1, "in png_write_pHYs");
-
- if (unit_type >= PNG_RESOLUTION_LAST)
- png_warning(png_ptr, "Unrecognized unit type for pHYs chunk");
-
- png_save_uint_32(buf, x_pixels_per_unit);
- png_save_uint_32(buf + 4, y_pixels_per_unit);
- buf[8] = (png_byte)unit_type;
-
- png_write_complete_chunk(png_ptr, png_pHYs, buf, 9);
-}
-#endif
-
-#ifdef PNG_WRITE_tIME_SUPPORTED
-/* Write the tIME chunk. Use either png_convert_from_struct_tm()
- * or png_convert_from_time_t(), or fill in the structure yourself.
- */
-void /* PRIVATE */
-png_write_tIME(png_structrp png_ptr, png_const_timep mod_time)
-{
- png_byte buf[7];
-
- png_debug(1, "in png_write_tIME");
-
- if (mod_time->month > 12 || mod_time->month < 1 ||
- mod_time->day > 31 || mod_time->day < 1 ||
- mod_time->hour > 23 || mod_time->second > 60)
- {
- png_warning(png_ptr, "Invalid time specified for tIME chunk");
- return;
- }
-
- png_save_uint_16(buf, mod_time->year);
- buf[2] = mod_time->month;
- buf[3] = mod_time->day;
- buf[4] = mod_time->hour;
- buf[5] = mod_time->minute;
- buf[6] = mod_time->second;
-
- png_write_complete_chunk(png_ptr, png_tIME, buf, 7);
-}
-#endif
-
-/* Initializes the row writing capability of libpng */
-void /* PRIVATE */
-png_write_start_row(png_structrp png_ptr)
-{
-#ifdef PNG_WRITE_INTERLACING_SUPPORTED
- /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
-
- /* Start of interlace block */
- static const png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};
-
- /* Offset to next interlace block */
- static const png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
-
- /* Start of interlace block in the y direction */
- static const png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1};
-
- /* Offset to next interlace block in the y direction */
- static const png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2};
-#endif
-
- png_alloc_size_t buf_size;
- int usr_pixel_depth;
-
-#ifdef PNG_WRITE_FILTER_SUPPORTED
- png_byte filters;
-#endif
-
- png_debug(1, "in png_write_start_row");
-
- usr_pixel_depth = png_ptr->usr_channels * png_ptr->usr_bit_depth;
- buf_size = PNG_ROWBYTES(usr_pixel_depth, png_ptr->width) + 1;
-
- /* 1.5.6: added to allow checking in the row write code. */
- png_ptr->transformed_pixel_depth = png_ptr->pixel_depth;
- png_ptr->maximum_pixel_depth = (png_byte)usr_pixel_depth;
-
- /* Set up row buffer */
- png_ptr->row_buf = png_voidcast(png_bytep, png_malloc(png_ptr, buf_size));
-
- png_ptr->row_buf[0] = PNG_FILTER_VALUE_NONE;
-
-#ifdef PNG_WRITE_FILTER_SUPPORTED
- filters = png_ptr->do_filter;
-
- if (png_ptr->height == 1)
- filters &= 0xff & ~(PNG_FILTER_UP|PNG_FILTER_AVG|PNG_FILTER_PAETH);
-
- if (png_ptr->width == 1)
- filters &= 0xff & ~(PNG_FILTER_SUB|PNG_FILTER_AVG|PNG_FILTER_PAETH);
-
- if (filters == 0)
- filters = PNG_FILTER_NONE;
-
- png_ptr->do_filter = filters;
-
- if (((filters & (PNG_FILTER_SUB | PNG_FILTER_UP | PNG_FILTER_AVG |
- PNG_FILTER_PAETH)) != 0) && png_ptr->try_row == NULL)
- {
- int num_filters = 0;
-
- png_ptr->try_row = png_voidcast(png_bytep, png_malloc(png_ptr, buf_size));
-
- if (filters & PNG_FILTER_SUB)
- num_filters++;
-
- if (filters & PNG_FILTER_UP)
- num_filters++;
-
- if (filters & PNG_FILTER_AVG)
- num_filters++;
-
- if (filters & PNG_FILTER_PAETH)
- num_filters++;
-
- if (num_filters > 1)
- png_ptr->tst_row = png_voidcast(png_bytep, png_malloc(png_ptr,
- buf_size));
- }
-
- /* We only need to keep the previous row if we are using one of the following
- * filters.
- */
- if ((filters & (PNG_FILTER_AVG | PNG_FILTER_UP | PNG_FILTER_PAETH)) != 0)
- png_ptr->prev_row = png_voidcast(png_bytep,
- png_calloc(png_ptr, buf_size));
-#endif /* WRITE_FILTER */
-
-#ifdef PNG_WRITE_INTERLACING_SUPPORTED
- /* If interlaced, we need to set up width and height of pass */
- if (png_ptr->interlaced != 0)
- {
- if ((png_ptr->transformations & PNG_INTERLACE) == 0)
- {
- png_ptr->num_rows = (png_ptr->height + png_pass_yinc[0] - 1 -
- png_pass_ystart[0]) / png_pass_yinc[0];
-
- png_ptr->usr_width = (png_ptr->width + png_pass_inc[0] - 1 -
- png_pass_start[0]) / png_pass_inc[0];
- }
-
- else
- {
- png_ptr->num_rows = png_ptr->height;
- png_ptr->usr_width = png_ptr->width;
- }
- }
-
- else
-#endif
- {
- png_ptr->num_rows = png_ptr->height;
- png_ptr->usr_width = png_ptr->width;
- }
-}
-
-/* Internal use only. Called when finished processing a row of data. */
-void /* PRIVATE */
-png_write_finish_row(png_structrp png_ptr)
-{
-#ifdef PNG_WRITE_INTERLACING_SUPPORTED
- /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
-
- /* Start of interlace block */
- static const png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};
-
- /* Offset to next interlace block */
- static const png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
-
- /* Start of interlace block in the y direction */
- static const png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1};
-
- /* Offset to next interlace block in the y direction */
- static const png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2};
-#endif
-
- png_debug(1, "in png_write_finish_row");
-
- /* Next row */
- png_ptr->row_number++;
-
- /* See if we are done */
- if (png_ptr->row_number < png_ptr->num_rows)
- return;
-
-#ifdef PNG_WRITE_INTERLACING_SUPPORTED
- /* If interlaced, go to next pass */
- if (png_ptr->interlaced != 0)
- {
- png_ptr->row_number = 0;
- if ((png_ptr->transformations & PNG_INTERLACE) != 0)
- {
- png_ptr->pass++;
- }
-
- else
- {
- /* Loop until we find a non-zero width or height pass */
- do
- {
- png_ptr->pass++;
-
- if (png_ptr->pass >= 7)
- break;
-
- png_ptr->usr_width = (png_ptr->width +
- png_pass_inc[png_ptr->pass] - 1 -
- png_pass_start[png_ptr->pass]) /
- png_pass_inc[png_ptr->pass];
-
- png_ptr->num_rows = (png_ptr->height +
- png_pass_yinc[png_ptr->pass] - 1 -
- png_pass_ystart[png_ptr->pass]) /
- png_pass_yinc[png_ptr->pass];
-
- if ((png_ptr->transformations & PNG_INTERLACE) != 0)
- break;
-
- } while (png_ptr->usr_width == 0 || png_ptr->num_rows == 0);
-
- }
-
- /* Reset the row above the image for the next pass */
- if (png_ptr->pass < 7)
- {
- if (png_ptr->prev_row != NULL)
- memset(png_ptr->prev_row, 0,
- PNG_ROWBYTES(png_ptr->usr_channels *
- png_ptr->usr_bit_depth, png_ptr->width) + 1);
-
- return;
- }
- }
-#endif
-
- /* If we get here, we've just written the last row, so we need
- to flush the compressor */
- png_compress_IDAT(png_ptr, NULL, 0, Z_FINISH);
-}
-
-#ifdef PNG_WRITE_INTERLACING_SUPPORTED
-/* Pick out the correct pixels for the interlace pass.
- * The basic idea here is to go through the row with a source
- * pointer and a destination pointer (sp and dp), and copy the
- * correct pixels for the pass. As the row gets compacted,
- * sp will always be >= dp, so we should never overwrite anything.
- * See the default: case for the easiest code to understand.
- */
-void /* PRIVATE */
-png_do_write_interlace(png_row_infop row_info, png_bytep row, int pass)
-{
- /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
-
- /* Start of interlace block */
- static const png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};
-
- /* Offset to next interlace block */
- static const png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
-
- png_debug(1, "in png_do_write_interlace");
-
- /* We don't have to do anything on the last pass (6) */
- if (pass < 6)
- {
- /* Each pixel depth is handled separately */
- switch (row_info->pixel_depth)
- {
- case 1:
- {
- png_bytep sp;
- png_bytep dp;
- unsigned int shift;
- int d;
- int value;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
- dp = row;
- d = 0;
- shift = 7;
-
- for (i = png_pass_start[pass]; i < row_width;
- i += png_pass_inc[pass])
- {
- sp = row + (size_t)(i >> 3);
- value = (int)(*sp >> (7 - (int)(i & 0x07))) & 0x01;
- d |= (value << shift);
-
- if (shift == 0)
- {
- shift = 7;
- *dp++ = (png_byte)d;
- d = 0;
- }
-
- else
- shift--;
-
- }
- if (shift != 7)
- *dp = (png_byte)d;
-
- break;
- }
-
- case 2:
- {
- png_bytep sp;
- png_bytep dp;
- unsigned int shift;
- int d;
- int value;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
- dp = row;
- shift = 6;
- d = 0;
-
- for (i = png_pass_start[pass]; i < row_width;
- i += png_pass_inc[pass])
- {
- sp = row + (size_t)(i >> 2);
- value = (*sp >> ((3 - (int)(i & 0x03)) << 1)) & 0x03;
- d |= (value << shift);
-
- if (shift == 0)
- {
- shift = 6;
- *dp++ = (png_byte)d;
- d = 0;
- }
-
- else
- shift -= 2;
- }
- if (shift != 6)
- *dp = (png_byte)d;
-
- break;
- }
-
- case 4:
- {
- png_bytep sp;
- png_bytep dp;
- unsigned int shift;
- int d;
- int value;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
-
- dp = row;
- shift = 4;
- d = 0;
- for (i = png_pass_start[pass]; i < row_width;
- i += png_pass_inc[pass])
- {
- sp = row + (size_t)(i >> 1);
- value = (*sp >> ((1 - (int)(i & 0x01)) << 2)) & 0x0f;
- d |= (value << shift);
-
- if (shift == 0)
- {
- shift = 4;
- *dp++ = (png_byte)d;
- d = 0;
- }
-
- else
- shift -= 4;
- }
- if (shift != 4)
- *dp = (png_byte)d;
-
- break;
- }
-
- default:
- {
- png_bytep sp;
- png_bytep dp;
- png_uint_32 i;
- png_uint_32 row_width = row_info->width;
- size_t pixel_bytes;
-
- /* Start at the beginning */
- dp = row;
-
- /* Find out how many bytes each pixel takes up */
- pixel_bytes = (row_info->pixel_depth >> 3);
-
- /* Loop through the row, only looking at the pixels that matter */
- for (i = png_pass_start[pass]; i < row_width;
- i += png_pass_inc[pass])
- {
- /* Find out where the original pixel is */
- sp = row + (size_t)i * pixel_bytes;
-
- /* Move the pixel */
- if (dp != sp)
- memcpy(dp, sp, pixel_bytes);
-
- /* Next pixel */
- dp += pixel_bytes;
- }
- break;
- }
- }
- /* Set new row width */
- row_info->width = (row_info->width +
- png_pass_inc[pass] - 1 -
- png_pass_start[pass]) /
- png_pass_inc[pass];
-
- row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,
- row_info->width);
- }
-}
-#endif
-
-
-/* This filters the row, chooses which filter to use, if it has not already
- * been specified by the application, and then writes the row out with the
- * chosen filter.
- */
-static void /* PRIVATE */
-png_write_filtered_row(png_structrp png_ptr, png_bytep filtered_row,
- size_t row_bytes);
-
-#ifdef PNG_WRITE_FILTER_SUPPORTED
-static size_t /* PRIVATE */
-png_setup_sub_row(png_structrp png_ptr, png_uint_32 bpp,
- size_t row_bytes, size_t lmins)
-{
- png_bytep rp, dp, lp;
- size_t i;
- size_t sum = 0;
- unsigned int v;
-
- png_ptr->try_row[0] = PNG_FILTER_VALUE_SUB;
-
- for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1; i < bpp;
- i++, rp++, dp++)
- {
- v = *dp = *rp;
-#ifdef PNG_USE_ABS
- sum += 128 - abs((int)v - 128);
-#else
- sum += (v < 128) ? v : 256 - v;
-#endif
- }
-
- for (lp = png_ptr->row_buf + 1; i < row_bytes;
- i++, rp++, lp++, dp++)
- {
- v = *dp = (png_byte)(((int)*rp - (int)*lp) & 0xff);
-#ifdef PNG_USE_ABS
- sum += 128 - abs((int)v - 128);
-#else
- sum += (v < 128) ? v : 256 - v;
-#endif
-
- if (sum > lmins) /* We are already worse, don't continue. */
- break;
- }
-
- return (sum);
-}
-
-static void /* PRIVATE */
-png_setup_sub_row_only(png_structrp png_ptr, png_uint_32 bpp,
- size_t row_bytes)
-{
- png_bytep rp, dp, lp;
- size_t i;
-
- png_ptr->try_row[0] = PNG_FILTER_VALUE_SUB;
-
- for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1; i < bpp;
- i++, rp++, dp++)
- {
- *dp = *rp;
- }
-
- for (lp = png_ptr->row_buf + 1; i < row_bytes;
- i++, rp++, lp++, dp++)
- {
- *dp = (png_byte)(((int)*rp - (int)*lp) & 0xff);
- }
-}
-
-static size_t /* PRIVATE */
-png_setup_up_row(png_structrp png_ptr, size_t row_bytes, size_t lmins)
-{
- png_bytep rp, dp, pp;
- size_t i;
- size_t sum = 0;
- unsigned int v;
-
- png_ptr->try_row[0] = PNG_FILTER_VALUE_UP;
-
- for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1,
- pp = png_ptr->prev_row + 1; i < row_bytes;
- i++, rp++, pp++, dp++)
- {
- v = *dp = (png_byte)(((int)*rp - (int)*pp) & 0xff);
-#ifdef PNG_USE_ABS
- sum += 128 - abs((int)v - 128);
-#else
- sum += (v < 128) ? v : 256 - v;
-#endif
-
- if (sum > lmins) /* We are already worse, don't continue. */
- break;
- }
-
- return (sum);
-}
-static void /* PRIVATE */
-png_setup_up_row_only(png_structrp png_ptr, size_t row_bytes)
-{
- png_bytep rp, dp, pp;
- size_t i;
-
- png_ptr->try_row[0] = PNG_FILTER_VALUE_UP;
-
- for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1,
- pp = png_ptr->prev_row + 1; i < row_bytes;
- i++, rp++, pp++, dp++)
- {
- *dp = (png_byte)(((int)*rp - (int)*pp) & 0xff);
- }
-}
-
-static size_t /* PRIVATE */
-png_setup_avg_row(png_structrp png_ptr, png_uint_32 bpp,
- size_t row_bytes, size_t lmins)
-{
- png_bytep rp, dp, pp, lp;
- png_uint_32 i;
- size_t sum = 0;
- unsigned int v;
-
- png_ptr->try_row[0] = PNG_FILTER_VALUE_AVG;
-
- for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1,
- pp = png_ptr->prev_row + 1; i < bpp; i++)
- {
- v = *dp++ = (png_byte)(((int)*rp++ - ((int)*pp++ / 2)) & 0xff);
-
-#ifdef PNG_USE_ABS
- sum += 128 - abs((int)v - 128);
-#else
- sum += (v < 128) ? v : 256 - v;
-#endif
- }
-
- for (lp = png_ptr->row_buf + 1; i < row_bytes; i++)
- {
- v = *dp++ = (png_byte)(((int)*rp++ - (((int)*pp++ + (int)*lp++) / 2))
- & 0xff);
-
-#ifdef PNG_USE_ABS
- sum += 128 - abs((int)v - 128);
-#else
- sum += (v < 128) ? v : 256 - v;
-#endif
-
- if (sum > lmins) /* We are already worse, don't continue. */
- break;
- }
-
- return (sum);
-}
-static void /* PRIVATE */
-png_setup_avg_row_only(png_structrp png_ptr, png_uint_32 bpp,
- size_t row_bytes)
-{
- png_bytep rp, dp, pp, lp;
- png_uint_32 i;
-
- png_ptr->try_row[0] = PNG_FILTER_VALUE_AVG;
-
- for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1,
- pp = png_ptr->prev_row + 1; i < bpp; i++)
- {
- *dp++ = (png_byte)(((int)*rp++ - ((int)*pp++ / 2)) & 0xff);
- }
-
- for (lp = png_ptr->row_buf + 1; i < row_bytes; i++)
- {
- *dp++ = (png_byte)(((int)*rp++ - (((int)*pp++ + (int)*lp++) / 2))
- & 0xff);
- }
-}
-
-static size_t /* PRIVATE */
-png_setup_paeth_row(png_structrp png_ptr, png_uint_32 bpp,
- size_t row_bytes, size_t lmins)
-{
- png_bytep rp, dp, pp, cp, lp;
- size_t i;
- size_t sum = 0;
- unsigned int v;
-
- png_ptr->try_row[0] = PNG_FILTER_VALUE_PAETH;
-
- for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1,
- pp = png_ptr->prev_row + 1; i < bpp; i++)
- {
- v = *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff);
-
-#ifdef PNG_USE_ABS
- sum += 128 - abs((int)v - 128);
-#else
- sum += (v < 128) ? v : 256 - v;
-#endif
- }
-
- for (lp = png_ptr->row_buf + 1, cp = png_ptr->prev_row + 1; i < row_bytes;
- i++)
- {
- int a, b, c, pa, pb, pc, p;
-
- b = *pp++;
- c = *cp++;
- a = *lp++;
-
- p = b - c;
- pc = a - c;
-
-#ifdef PNG_USE_ABS
- pa = abs(p);
- pb = abs(pc);
- pc = abs(p + pc);
-#else
- pa = p < 0 ? -p : p;
- pb = pc < 0 ? -pc : pc;
- pc = (p + pc) < 0 ? -(p + pc) : p + pc;
-#endif
-
- p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c;
-
- v = *dp++ = (png_byte)(((int)*rp++ - p) & 0xff);
-
-#ifdef PNG_USE_ABS
- sum += 128 - abs((int)v - 128);
-#else
- sum += (v < 128) ? v : 256 - v;
-#endif
-
- if (sum > lmins) /* We are already worse, don't continue. */
- break;
- }
-
- return (sum);
-}
-static void /* PRIVATE */
-png_setup_paeth_row_only(png_structrp png_ptr, png_uint_32 bpp,
- size_t row_bytes)
-{
- png_bytep rp, dp, pp, cp, lp;
- size_t i;
-
- png_ptr->try_row[0] = PNG_FILTER_VALUE_PAETH;
-
- for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1,
- pp = png_ptr->prev_row + 1; i < bpp; i++)
- {
- *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff);
- }
-
- for (lp = png_ptr->row_buf + 1, cp = png_ptr->prev_row + 1; i < row_bytes;
- i++)
- {
- int a, b, c, pa, pb, pc, p;
-
- b = *pp++;
- c = *cp++;
- a = *lp++;
-
- p = b - c;
- pc = a - c;
-
-#ifdef PNG_USE_ABS
- pa = abs(p);
- pb = abs(pc);
- pc = abs(p + pc);
-#else
- pa = p < 0 ? -p : p;
- pb = pc < 0 ? -pc : pc;
- pc = (p + pc) < 0 ? -(p + pc) : p + pc;
-#endif
-
- p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c;
-
- *dp++ = (png_byte)(((int)*rp++ - p) & 0xff);
- }
-}
-#endif /* WRITE_FILTER */
-
-void /* PRIVATE */
-png_write_find_filter(png_structrp png_ptr, png_row_infop row_info)
-{
-#ifndef PNG_WRITE_FILTER_SUPPORTED
- png_write_filtered_row(png_ptr, png_ptr->row_buf, row_info->rowbytes+1);
-#else
- unsigned int filter_to_do = png_ptr->do_filter;
- png_bytep row_buf;
- png_bytep best_row;
- png_uint_32 bpp;
- size_t mins;
- size_t row_bytes = row_info->rowbytes;
-
- png_debug(1, "in png_write_find_filter");
-
- /* Find out how many bytes offset each pixel is */
- bpp = (row_info->pixel_depth + 7) >> 3;
-
- row_buf = png_ptr->row_buf;
- mins = PNG_SIZE_MAX - 256/* so we can detect potential overflow of the
- running sum */;
-
- /* The prediction method we use is to find which method provides the
- * smallest value when summing the absolute values of the distances
- * from zero, using anything >= 128 as negative numbers. This is known
- * as the "minimum sum of absolute differences" heuristic. Other
- * heuristics are the "weighted minimum sum of absolute differences"
- * (experimental and can in theory improve compression), and the "zlib
- * predictive" method (not implemented yet), which does test compressions
- * of lines using different filter methods, and then chooses the
- * (series of) filter(s) that give minimum compressed data size (VERY
- * computationally expensive).
- *
- * GRR 980525: consider also
- *
- * (1) minimum sum of absolute differences from running average (i.e.,
- * keep running sum of non-absolute differences & count of bytes)
- * [track dispersion, too? restart average if dispersion too large?]
- *
- * (1b) minimum sum of absolute differences from sliding average, probably
- * with window size <= deflate window (usually 32K)
- *
- * (2) minimum sum of squared differences from zero or running average
- * (i.e., ~ root-mean-square approach)
- */
-
-
- /* We don't need to test the 'no filter' case if this is the only filter
- * that has been chosen, as it doesn't actually do anything to the data.
- */
- best_row = png_ptr->row_buf;
-
- if (PNG_SIZE_MAX/128 <= row_bytes)
- {
- /* Overflow can occur in the calculation, just select the lowest set
- * filter.
- */
- filter_to_do &= 0U-filter_to_do;
- }
- else if ((filter_to_do & PNG_FILTER_NONE) != 0 &&
- filter_to_do != PNG_FILTER_NONE)
- {
- /* Overflow not possible and multiple filters in the list, including the
- * 'none' filter.
- */
- png_bytep rp;
- size_t sum = 0;
- size_t i;
- unsigned int v;
-
- {
- for (i = 0, rp = row_buf + 1; i < row_bytes; i++, rp++)
- {
- v = *rp;
-#ifdef PNG_USE_ABS
- sum += 128 - abs((int)v - 128);
-#else
- sum += (v < 128) ? v : 256 - v;
-#endif
- }
- }
-
- mins = sum;
- }
-
- /* Sub filter */
- if (filter_to_do == PNG_FILTER_SUB)
- /* It's the only filter so no testing is needed */
- {
- png_setup_sub_row_only(png_ptr, bpp, row_bytes);
- best_row = png_ptr->try_row;
- }
-
- else if ((filter_to_do & PNG_FILTER_SUB) != 0)
- {
- size_t sum;
- size_t lmins = mins;
-
- sum = png_setup_sub_row(png_ptr, bpp, row_bytes, lmins);
-
- if (sum < mins)
- {
- mins = sum;
- best_row = png_ptr->try_row;
- if (png_ptr->tst_row != NULL)
- {
- png_ptr->try_row = png_ptr->tst_row;
- png_ptr->tst_row = best_row;
- }
- }
- }
-
- /* Up filter */
- if (filter_to_do == PNG_FILTER_UP)
- {
- png_setup_up_row_only(png_ptr, row_bytes);
- best_row = png_ptr->try_row;
- }
-
- else if ((filter_to_do & PNG_FILTER_UP) != 0)
- {
- size_t sum;
- size_t lmins = mins;
-
- sum = png_setup_up_row(png_ptr, row_bytes, lmins);
-
- if (sum < mins)
- {
- mins = sum;
- best_row = png_ptr->try_row;
- if (png_ptr->tst_row != NULL)
- {
- png_ptr->try_row = png_ptr->tst_row;
- png_ptr->tst_row = best_row;
- }
- }
- }
-
- /* Avg filter */
- if (filter_to_do == PNG_FILTER_AVG)
- {
- png_setup_avg_row_only(png_ptr, bpp, row_bytes);
- best_row = png_ptr->try_row;
- }
-
- else if ((filter_to_do & PNG_FILTER_AVG) != 0)
- {
- size_t sum;
- size_t lmins = mins;
-
- sum= png_setup_avg_row(png_ptr, bpp, row_bytes, lmins);
-
- if (sum < mins)
- {
- mins = sum;
- best_row = png_ptr->try_row;
- if (png_ptr->tst_row != NULL)
- {
- png_ptr->try_row = png_ptr->tst_row;
- png_ptr->tst_row = best_row;
- }
- }
- }
-
- /* Paeth filter */
- if (filter_to_do == PNG_FILTER_PAETH)
- {
- png_setup_paeth_row_only(png_ptr, bpp, row_bytes);
- best_row = png_ptr->try_row;
- }
-
- else if ((filter_to_do & PNG_FILTER_PAETH) != 0)
- {
- size_t sum;
- size_t lmins = mins;
-
- sum = png_setup_paeth_row(png_ptr, bpp, row_bytes, lmins);
-
- if (sum < mins)
- {
- best_row = png_ptr->try_row;
- if (png_ptr->tst_row != NULL)
- {
- png_ptr->try_row = png_ptr->tst_row;
- png_ptr->tst_row = best_row;
- }
- }
- }
-
- /* Do the actual writing of the filtered row data from the chosen filter. */
- png_write_filtered_row(png_ptr, best_row, row_info->rowbytes+1);
-
-#endif /* WRITE_FILTER */
-}
-
-
-/* Do the actual writing of a previously filtered row. */
-static void
-png_write_filtered_row(png_structrp png_ptr, png_bytep filtered_row,
- size_t full_row_length/*includes filter byte*/)
-{
- png_debug(1, "in png_write_filtered_row");
-
- png_debug1(2, "filter = %d", filtered_row[0]);
-
- png_compress_IDAT(png_ptr, filtered_row, full_row_length, Z_NO_FLUSH);
-
-#ifdef PNG_WRITE_FILTER_SUPPORTED
- /* Swap the current and previous rows */
- if (png_ptr->prev_row != NULL)
- {
- png_bytep tptr;
-
- tptr = png_ptr->prev_row;
- png_ptr->prev_row = png_ptr->row_buf;
- png_ptr->row_buf = tptr;
- }
-#endif /* WRITE_FILTER */
-
- /* Finish row - updates counters and flushes zlib if last row */
- png_write_finish_row(png_ptr);
-
-#ifdef PNG_WRITE_FLUSH_SUPPORTED
- png_ptr->flush_rows++;
-
- if (png_ptr->flush_dist > 0 &&
- png_ptr->flush_rows >= png_ptr->flush_dist)
- {
- png_write_flush(png_ptr);
- }
-#endif /* WRITE_FLUSH */
-}
-#endif /* WRITE */
diff --git a/3rdparty/libpng/libpng-1.6.37/pngwutil.lo b/3rdparty/libpng/libpng-1.6.37/pngwutil.lo
deleted file mode 100644
index a838618..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngwutil.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# pngwutil.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/pngwutil.o'
-
-# Name of the non-PIC object
-non_pic_object='pngwutil.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/pngwutil.o b/3rdparty/libpng/libpng-1.6.37/pngwutil.o
deleted file mode 100644
index ae03703..0000000
--- a/3rdparty/libpng/libpng-1.6.37/pngwutil.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/powerpc/.deps/.dirstamp b/3rdparty/libpng/libpng-1.6.37/powerpc/.deps/.dirstamp
deleted file mode 100644
index e69de29..0000000
--- a/3rdparty/libpng/libpng-1.6.37/powerpc/.deps/.dirstamp
+++ /dev/null
diff --git a/3rdparty/libpng/libpng-1.6.37/powerpc/.deps/filter_vsx_intrinsics.Plo b/3rdparty/libpng/libpng-1.6.37/powerpc/.deps/filter_vsx_intrinsics.Plo
deleted file mode 100644
index 0159617..0000000
--- a/3rdparty/libpng/libpng-1.6.37/powerpc/.deps/filter_vsx_intrinsics.Plo
+++ /dev/null
@@ -1,171 +0,0 @@
-powerpc/filter_vsx_intrinsics.lo: powerpc/filter_vsx_intrinsics.c \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdint.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wchar.h \
- powerpc/../pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/endian.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/endian.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/byteswap.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/select.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/select.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/sysmacros.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/pthreadtypes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/alloca.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- config.h powerpc/../pnglibconf.h powerpc/../png.h powerpc/../pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix2_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- powerpc/../pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/getopt.h \
- powerpc/../pnginfo.h powerpc/../pngdebug.h
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdint.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wchar.h:
-
-powerpc/../pngpriv.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/endian.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/endian.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/byteswap.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/select.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/select.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/sysmacros.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/pthreadtypes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/alloca.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
-
-config.h:
-
-powerpc/../pnglibconf.h:
-
-powerpc/../png.h:
-
-powerpc/../pngconf.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix2_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
-
-powerpc/../pngstruct.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/getopt.h:
-
-powerpc/../pnginfo.h:
-
-powerpc/../pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/powerpc/.deps/powerpc_init.Plo b/3rdparty/libpng/libpng-1.6.37/powerpc/.deps/powerpc_init.Plo
deleted file mode 100644
index 1a58a23..0000000
--- a/3rdparty/libpng/libpng-1.6.37/powerpc/.deps/powerpc_init.Plo
+++ /dev/null
@@ -1,135 +0,0 @@
-powerpc/powerpc_init.lo: powerpc/powerpc_init.c \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h \
- powerpc/../pngpriv.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h \
- config.h powerpc/../pnglibconf.h powerpc/../png.h powerpc/../pngconf.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h \
- /opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h \
- powerpc/../pngstruct.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h \
- /home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h \
- /opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h \
- powerpc/../pnginfo.h powerpc/../pngdebug.h
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/features.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/cdefs.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/wordsize.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/gnu/stubs.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stddef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/typesizes.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/libio.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/_G_config.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/wchar.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/stdarg.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/stdio_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sys_errlist.h:
-
-powerpc/../pngpriv.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/stdlib.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/string.h:
-
-config.h:
-
-powerpc/../pnglibconf.h:
-
-powerpc/../png.h:
-
-powerpc/../pngconf.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/limits.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include-fixed/syslimits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix1_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/local_lim.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/linux/limits.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/setjmp.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/sigset.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/time.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/time.h:
-
-/opt/xtools/arm920t/lib/gcc/arm-arm920t-linux-gnueabi/4.4.6/include/float.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/math.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/huge_val.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathdef.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/mathcalls.h:
-
-powerpc/../pngstruct.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zlib.h:
-
-/home/guowenxue/fl2440/3rdparty/libpng/../install//include/zconf.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/sys/types.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/unistd.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/posix_opt.h:
-
-/opt/xtools/arm920t/arm-arm920t-linux-gnueabi/sysroot/usr/include/bits/confname.h:
-
-powerpc/../pnginfo.h:
-
-powerpc/../pngdebug.h:
diff --git a/3rdparty/libpng/libpng-1.6.37/powerpc/.dirstamp b/3rdparty/libpng/libpng-1.6.37/powerpc/.dirstamp
deleted file mode 100644
index e69de29..0000000
--- a/3rdparty/libpng/libpng-1.6.37/powerpc/.dirstamp
+++ /dev/null
diff --git a/3rdparty/libpng/libpng-1.6.37/powerpc/.libs/filter_vsx_intrinsics.o b/3rdparty/libpng/libpng-1.6.37/powerpc/.libs/filter_vsx_intrinsics.o
deleted file mode 100644
index f2c5454..0000000
--- a/3rdparty/libpng/libpng-1.6.37/powerpc/.libs/filter_vsx_intrinsics.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/powerpc/.libs/powerpc_init.o b/3rdparty/libpng/libpng-1.6.37/powerpc/.libs/powerpc_init.o
deleted file mode 100644
index efa8a42..0000000
--- a/3rdparty/libpng/libpng-1.6.37/powerpc/.libs/powerpc_init.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/powerpc/filter_vsx_intrinsics.c b/3rdparty/libpng/libpng-1.6.37/powerpc/filter_vsx_intrinsics.c
deleted file mode 100644
index 01cf880..0000000
--- a/3rdparty/libpng/libpng-1.6.37/powerpc/filter_vsx_intrinsics.c
+++ /dev/null
@@ -1,768 +0,0 @@
-/* filter_vsx_intrinsics.c - PowerPC optimised filter functions
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 2017 Glenn Randers-Pehrson
- * Written by Vadim Barkov, 2017.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#include <stdio.h>
-#include <stdint.h>
-#include "../pngpriv.h"
-
-#ifdef PNG_READ_SUPPORTED
-
-/* This code requires -maltivec and -mvsx on the command line: */
-#if PNG_POWERPC_VSX_IMPLEMENTATION == 1 /* intrinsics code from pngpriv.h */
-
-#include <altivec.h>
-
-#if PNG_POWERPC_VSX_OPT > 0
-
-#ifndef __VSX__
-# error "This code requires VSX support (POWER7 and later). Please provide -mvsx compiler flag."
-#endif
-
-#define vec_ld_unaligned(vec,data) vec = vec_vsx_ld(0,data)
-#define vec_st_unaligned(vec,data) vec_vsx_st(vec,0,data)
-
-
-/* Functions in this file look at most 3 pixels (a,b,c) to predict the 4th (d).
- * They're positioned like this:
- * prev: c b
- * row: a d
- * The Sub filter predicts d=a, Avg d=(a+b)/2, and Paeth predicts d to be
- * whichever of a, b, or c is closest to p=a+b-c.
- * ( this is taken from ../intel/filter_sse2_intrinsics.c )
- */
-
-#define vsx_declare_common_vars(row_info,row,prev_row,offset) \
- png_byte i;\
- png_bytep rp = row + offset;\
- png_const_bytep pp = prev_row;\
- size_t unaligned_top = 16 - (((size_t)rp % 16));\
- size_t istop;\
- if(unaligned_top == 16)\
- unaligned_top = 0;\
- istop = row_info->rowbytes;\
- if((unaligned_top < istop))\
- istop -= unaligned_top;\
- else{\
- unaligned_top = istop;\
- istop = 0;\
- }
-
-void png_read_filter_row_up_vsx(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- vector unsigned char rp_vec;
- vector unsigned char pp_vec;
- vsx_declare_common_vars(row_info,row,prev_row,0)
-
- /* Altivec operations require 16-byte aligned data
- * but input can be unaligned. So we calculate
- * unaligned part as usual.
- */
- for (i = 0; i < unaligned_top; i++)
- {
- *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff);
- rp++;
- }
-
- /* Using SIMD while we can */
- while( istop >= 16 )
- {
- rp_vec = vec_ld(0,rp);
- vec_ld_unaligned(pp_vec,pp);
-
- rp_vec = vec_add(rp_vec,pp_vec);
-
- vec_st(rp_vec,0,rp);
-
- pp += 16;
- rp += 16;
- istop -= 16;
- }
-
- if(istop > 0)
- {
- /* If byte count of row is not divisible by 16
- * we will process remaining part as usual
- */
- for (i = 0; i < istop; i++)
- {
- *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff);
- rp++;
- }
-}
-
-}
-
-static const vector unsigned char VSX_LEFTSHIFTED1_4 = {16,16,16,16, 0, 1, 2, 3,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_LEFTSHIFTED2_4 = {16,16,16,16,16,16,16,16, 4, 5, 6, 7,16,16,16,16};
-static const vector unsigned char VSX_LEFTSHIFTED3_4 = {16,16,16,16,16,16,16,16,16,16,16,16, 8, 9,10,11};
-
-static const vector unsigned char VSX_LEFTSHIFTED1_3 = {16,16,16, 0, 1, 2,16,16,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_LEFTSHIFTED2_3 = {16,16,16,16,16,16, 3, 4, 5,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_LEFTSHIFTED3_3 = {16,16,16,16,16,16,16,16,16, 6, 7, 8,16,16,16,16};
-static const vector unsigned char VSX_LEFTSHIFTED4_3 = {16,16,16,16,16,16,16,16,16,16,16,16, 9,10,11,16};
-
-static const vector unsigned char VSX_NOT_SHIFTED1_4 = {16,16,16,16, 4, 5, 6, 7,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_NOT_SHIFTED2_4 = {16,16,16,16,16,16,16,16, 8, 9,10,11,16,16,16,16};
-static const vector unsigned char VSX_NOT_SHIFTED3_4 = {16,16,16,16,16,16,16,16,16,16,16,16,12,13,14,15};
-
-static const vector unsigned char VSX_NOT_SHIFTED1_3 = {16,16,16, 3, 4, 5,16,16,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_NOT_SHIFTED2_3 = {16,16,16,16,16,16, 6, 7, 8,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_NOT_SHIFTED3_3 = {16,16,16,16,16,16,16,16,16, 9,10,11,16,16,16,16};
-static const vector unsigned char VSX_NOT_SHIFTED4_3 = {16,16,16,16,16,16,16,16,16,16,16,16,12,13,14,16};
-
-static const vector unsigned char VSX_CHAR_ZERO = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
-#ifdef __LITTLE_ENDIAN__
-
-static const vector unsigned char VSX_CHAR_TO_SHORT1_4 = { 4,16, 5,16, 6,16, 7,16,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_CHAR_TO_SHORT2_4 = { 8,16, 9,16,10,16,11,16,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_CHAR_TO_SHORT3_4 = {12,16,13,16,14,16,15,16,16,16,16,16,16,16,16,16};
-
-static const vector unsigned char VSX_SHORT_TO_CHAR1_4 = {16,16,16,16, 0, 2, 4, 6,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_SHORT_TO_CHAR2_4 = {16,16,16,16,16,16,16,16, 0, 2, 4, 6,16,16,16,16};
-static const vector unsigned char VSX_SHORT_TO_CHAR3_4 = {16,16,16,16,16,16,16,16,16,16,16,16, 0, 2, 4, 6};
-
-static const vector unsigned char VSX_CHAR_TO_SHORT1_3 = { 3,16, 4,16, 5,16,16,16,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_CHAR_TO_SHORT2_3 = { 6,16, 7,16, 8,16,16,16,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_CHAR_TO_SHORT3_3 = { 9,16,10,16,11,16,16,16,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_CHAR_TO_SHORT4_3 = {12,16,13,16,14,16,16,16,16,16,16,16,16,16,16,16};
-
-static const vector unsigned char VSX_SHORT_TO_CHAR1_3 = {16,16,16, 0, 2, 4,16,16,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_SHORT_TO_CHAR2_3 = {16,16,16,16,16,16, 0, 2, 4,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_SHORT_TO_CHAR3_3 = {16,16,16,16,16,16,16,16,16, 0, 2, 4,16,16,16,16};
-static const vector unsigned char VSX_SHORT_TO_CHAR4_3 = {16,16,16,16,16,16,16,16,16,16,16,16, 0, 2, 4,16};
-
-#elif defined(__BIG_ENDIAN__)
-
-static const vector unsigned char VSX_CHAR_TO_SHORT1_4 = {16, 4,16, 5,16, 6,16, 7,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_CHAR_TO_SHORT2_4 = {16, 8,16, 9,16,10,16,11,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_CHAR_TO_SHORT3_4 = {16,12,16,13,16,14,16,15,16,16,16,16,16,16,16,16};
-
-static const vector unsigned char VSX_SHORT_TO_CHAR1_4 = {16,16,16,16, 1, 3, 5, 7,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_SHORT_TO_CHAR2_4 = {16,16,16,16,16,16,16,16, 1, 3, 5, 7,16,16,16,16};
-static const vector unsigned char VSX_SHORT_TO_CHAR3_4 = {16,16,16,16,16,16,16,16,16,16,16,16, 1, 3, 5, 7};
-
-static const vector unsigned char VSX_CHAR_TO_SHORT1_3 = {16, 3,16, 4,16, 5,16,16,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_CHAR_TO_SHORT2_3 = {16, 6,16, 7,16, 8,16,16,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_CHAR_TO_SHORT3_3 = {16, 9,16,10,16,11,16,16,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_CHAR_TO_SHORT4_3 = {16,12,16,13,16,14,16,16,16,16,16,16,16,16,16,16};
-
-static const vector unsigned char VSX_SHORT_TO_CHAR1_3 = {16,16,16, 1, 3, 5,16,16,16,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_SHORT_TO_CHAR2_3 = {16,16,16,16,16,16, 1, 3, 5,16,16,16,16,16,16,16};
-static const vector unsigned char VSX_SHORT_TO_CHAR3_3 = {16,16,16,16,16,16,16,16,16, 1, 3, 5,16,16,16,16};
-static const vector unsigned char VSX_SHORT_TO_CHAR4_3 = {16,16,16,16,16,16,16,16,16,16,16,16, 1, 3, 5,16};
-
-#endif
-
-#define vsx_char_to_short(vec,offset,bpp) (vector unsigned short)vec_perm((vec),VSX_CHAR_ZERO,VSX_CHAR_TO_SHORT##offset##_##bpp)
-#define vsx_short_to_char(vec,offset,bpp) vec_perm(((vector unsigned char)(vec)),VSX_CHAR_ZERO,VSX_SHORT_TO_CHAR##offset##_##bpp)
-
-#ifdef PNG_USE_ABS
-# define vsx_abs(number) abs(number)
-#else
-# define vsx_abs(number) (number > 0) ? (number) : -(number)
-#endif
-
-void png_read_filter_row_sub4_vsx(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- png_byte bpp = 4;
-
- vector unsigned char rp_vec;
- vector unsigned char part_vec;
-
- vsx_declare_common_vars(row_info,row,prev_row,bpp)
-
- PNG_UNUSED(pp)
-
- /* Altivec operations require 16-byte aligned data
- * but input can be unaligned. So we calculate
- * unaligned part as usual.
- */
- for (i = 0; i < unaligned_top; i++)
- {
- *rp = (png_byte)(((int)(*rp) + (int)(*(rp-bpp))) & 0xff);
- rp++;
- }
-
- /* Using SIMD while we can */
- while( istop >= 16 )
- {
- for(i=0;i < bpp ; i++)
- {
- *rp = (png_byte)(((int)(*rp) + (int)(*(rp-bpp))) & 0xff);
- rp++;
- }
- rp -= bpp;
-
- rp_vec = vec_ld(0,rp);
- part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED1_4);
- rp_vec = vec_add(rp_vec,part_vec);
-
- part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED2_4);
- rp_vec = vec_add(rp_vec,part_vec);
-
- part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED3_4);
- rp_vec = vec_add(rp_vec,part_vec);
-
- vec_st(rp_vec,0,rp);
-
- rp += 16;
- istop -= 16;
- }
-
- if(istop > 0)
- for (i = 0; i < istop % 16; i++)
- {
- *rp = (png_byte)(((int)(*rp) + (int)(*(rp - bpp))) & 0xff);
- rp++;
- }
-
-}
-
-void png_read_filter_row_sub3_vsx(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- png_byte bpp = 3;
-
- vector unsigned char rp_vec;
- vector unsigned char part_vec;
-
- vsx_declare_common_vars(row_info,row,prev_row,bpp)
-
- PNG_UNUSED(pp)
-
- /* Altivec operations require 16-byte aligned data
- * but input can be unaligned. So we calculate
- * unaligned part as usual.
- */
- for (i = 0; i < unaligned_top; i++)
- {
- *rp = (png_byte)(((int)(*rp) + (int)(*(rp-bpp))) & 0xff);
- rp++;
- }
-
- /* Using SIMD while we can */
- while( istop >= 16 )
- {
- for(i=0;i < bpp ; i++)
- {
- *rp = (png_byte)(((int)(*rp) + (int)(*(rp-bpp))) & 0xff);
- rp++;
- }
- rp -= bpp;
-
- rp_vec = vec_ld(0,rp);
- part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED1_3);
- rp_vec = vec_add(rp_vec,part_vec);
-
- part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED2_3);
- rp_vec = vec_add(rp_vec,part_vec);
-
- part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED3_3);
- rp_vec = vec_add(rp_vec,part_vec);
-
- part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED4_3);
- rp_vec = vec_add(rp_vec,part_vec);
-
- vec_st(rp_vec,0,rp);
- rp += 15;
- istop -= 16;
-
- /* Since 16 % bpp = 16 % 3 = 1, last element of array must
- * be proceeded manually
- */
- *rp = (png_byte)(((int)(*rp) + (int)(*(rp-bpp))) & 0xff);
- rp++;
- }
-
- if(istop > 0)
- for (i = 0; i < istop % 16; i++)
- {
- *rp = (png_byte)(((int)(*rp) + (int)(*(rp-bpp))) & 0xff);
- rp++;
- }
-}
-
-void png_read_filter_row_avg4_vsx(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- png_byte bpp = 4;
-
- vector unsigned char rp_vec;
- vector unsigned char pp_vec;
- vector unsigned char pp_part_vec;
- vector unsigned char rp_part_vec;
- vector unsigned char avg_vec;
-
- vsx_declare_common_vars(row_info,row,prev_row,bpp)
- rp -= bpp;
- if(istop >= bpp)
- istop -= bpp;
-
- for (i = 0; i < bpp; i++)
- {
- *rp = (png_byte)(((int)(*rp) +
- ((int)(*pp++) / 2 )) & 0xff);
-
- rp++;
- }
-
- /* Altivec operations require 16-byte aligned data
- * but input can be unaligned. So we calculate
- * unaligned part as usual.
- */
- for (i = 0; i < unaligned_top; i++)
- {
- *rp = (png_byte)(((int)(*rp) +
- (int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
-
- rp++;
- }
-
- /* Using SIMD while we can */
- while( istop >= 16 )
- {
- for(i=0;i < bpp ; i++)
- {
- *rp = (png_byte)(((int)(*rp) +
- (int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
-
- rp++;
- }
- rp -= bpp;
- pp -= bpp;
-
- vec_ld_unaligned(pp_vec,pp);
- rp_vec = vec_ld(0,rp);
-
- rp_part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED1_4);
- pp_part_vec = vec_perm(pp_vec,VSX_CHAR_ZERO,VSX_NOT_SHIFTED1_4);
- avg_vec = vec_avg(rp_part_vec,pp_part_vec);
- avg_vec = vec_sub(avg_vec, vec_and(vec_xor(rp_part_vec,pp_part_vec),vec_splat_u8(1)));
- rp_vec = vec_add(rp_vec,avg_vec);
-
- rp_part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED2_4);
- pp_part_vec = vec_perm(pp_vec,VSX_CHAR_ZERO,VSX_NOT_SHIFTED2_4);
- avg_vec = vec_avg(rp_part_vec,pp_part_vec);
- avg_vec = vec_sub(avg_vec, vec_and(vec_xor(rp_part_vec,pp_part_vec),vec_splat_u8(1)));
- rp_vec = vec_add(rp_vec,avg_vec);
-
- rp_part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED3_4);
- pp_part_vec = vec_perm(pp_vec,VSX_CHAR_ZERO,VSX_NOT_SHIFTED3_4);
- avg_vec = vec_avg(rp_part_vec,pp_part_vec);
- avg_vec = vec_sub(avg_vec, vec_and(vec_xor(rp_part_vec,pp_part_vec),vec_splat_u8(1)));
- rp_vec = vec_add(rp_vec,avg_vec);
-
- vec_st(rp_vec,0,rp);
-
- rp += 16;
- pp += 16;
- istop -= 16;
- }
-
- if(istop > 0)
- for (i = 0; i < istop % 16; i++)
- {
- *rp = (png_byte)(((int)(*rp) +
- (int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
-
- rp++;
- }
-}
-
-void png_read_filter_row_avg3_vsx(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- png_byte bpp = 3;
-
- vector unsigned char rp_vec;
- vector unsigned char pp_vec;
- vector unsigned char pp_part_vec;
- vector unsigned char rp_part_vec;
- vector unsigned char avg_vec;
-
- vsx_declare_common_vars(row_info,row,prev_row,bpp)
- rp -= bpp;
- if(istop >= bpp)
- istop -= bpp;
-
- for (i = 0; i < bpp; i++)
- {
- *rp = (png_byte)(((int)(*rp) +
- ((int)(*pp++) / 2 )) & 0xff);
-
- rp++;
- }
-
- /* Altivec operations require 16-byte aligned data
- * but input can be unaligned. So we calculate
- * unaligned part as usual.
- */
- for (i = 0; i < unaligned_top; i++)
- {
- *rp = (png_byte)(((int)(*rp) +
- (int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
-
- rp++;
- }
-
- /* Using SIMD while we can */
- while( istop >= 16 )
- {
- for(i=0;i < bpp ; i++)
- {
- *rp = (png_byte)(((int)(*rp) +
- (int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
-
- rp++;
- }
- rp -= bpp;
- pp -= bpp;
-
- vec_ld_unaligned(pp_vec,pp);
- rp_vec = vec_ld(0,rp);
-
- rp_part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED1_3);
- pp_part_vec = vec_perm(pp_vec,VSX_CHAR_ZERO,VSX_NOT_SHIFTED1_3);
- avg_vec = vec_avg(rp_part_vec,pp_part_vec);
- avg_vec = vec_sub(avg_vec, vec_and(vec_xor(rp_part_vec,pp_part_vec),vec_splat_u8(1)));
- rp_vec = vec_add(rp_vec,avg_vec);
-
- rp_part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED2_3);
- pp_part_vec = vec_perm(pp_vec,VSX_CHAR_ZERO,VSX_NOT_SHIFTED2_3);
- avg_vec = vec_avg(rp_part_vec,pp_part_vec);
- avg_vec = vec_sub(avg_vec, vec_and(vec_xor(rp_part_vec,pp_part_vec),vec_splat_u8(1)));
- rp_vec = vec_add(rp_vec,avg_vec);
-
- rp_part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED3_3);
- pp_part_vec = vec_perm(pp_vec,VSX_CHAR_ZERO,VSX_NOT_SHIFTED3_3);
- avg_vec = vec_avg(rp_part_vec,pp_part_vec);
- avg_vec = vec_sub(avg_vec, vec_and(vec_xor(rp_part_vec,pp_part_vec),vec_splat_u8(1)));
- rp_vec = vec_add(rp_vec,avg_vec);
-
- rp_part_vec = vec_perm(rp_vec,VSX_CHAR_ZERO,VSX_LEFTSHIFTED4_3);
- pp_part_vec = vec_perm(pp_vec,VSX_CHAR_ZERO,VSX_NOT_SHIFTED4_3);
- avg_vec = vec_avg(rp_part_vec,pp_part_vec);
- avg_vec = vec_sub(avg_vec, vec_and(vec_xor(rp_part_vec,pp_part_vec),vec_splat_u8(1)));
- rp_vec = vec_add(rp_vec,avg_vec);
-
- vec_st(rp_vec,0,rp);
-
- rp += 15;
- pp += 15;
- istop -= 16;
-
- /* Since 16 % bpp = 16 % 3 = 1, last element of array must
- * be proceeded manually
- */
- *rp = (png_byte)(((int)(*rp) +
- (int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
- rp++;
- }
-
- if(istop > 0)
- for (i = 0; i < istop % 16; i++)
- {
- *rp = (png_byte)(((int)(*rp) +
- (int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff);
-
- rp++;
- }
-}
-
-/* Bytewise c ? t : e. */
-#define if_then_else(c,t,e) vec_sel(e,t,c)
-
-#define vsx_paeth_process(rp,pp,a,b,c,pa,pb,pc,bpp) {\
- c = *(pp - bpp);\
- a = *(rp - bpp);\
- b = *pp++;\
- p = b - c;\
- pc = a - c;\
- pa = vsx_abs(p);\
- pb = vsx_abs(pc);\
- pc = vsx_abs(p + pc);\
- if (pb < pa) pa = pb, a = b;\
- if (pc < pa) a = c;\
- a += *rp;\
- *rp++ = (png_byte)a;\
- }
-
-void png_read_filter_row_paeth4_vsx(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- png_byte bpp = 4;
-
- int a, b, c, pa, pb, pc, p;
- vector unsigned char rp_vec;
- vector unsigned char pp_vec;
- vector unsigned short a_vec,b_vec,c_vec,nearest_vec;
- vector signed short pa_vec,pb_vec,pc_vec,smallest_vec;
-
- vsx_declare_common_vars(row_info,row,prev_row,bpp)
- rp -= bpp;
- if(istop >= bpp)
- istop -= bpp;
-
- /* Process the first pixel in the row completely (this is the same as 'up'
- * because there is only one candidate predictor for the first row).
- */
- for(i = 0; i < bpp ; i++)
- {
- *rp = (png_byte)( *rp + *pp);
- rp++;
- pp++;
- }
-
- for(i = 0; i < unaligned_top ; i++)
- {
- vsx_paeth_process(rp,pp,a,b,c,pa,pb,pc,bpp)
- }
-
- while( istop >= 16)
- {
- for(i = 0; i < bpp ; i++)
- {
- vsx_paeth_process(rp,pp,a,b,c,pa,pb,pc,bpp)
- }
-
- rp -= bpp;
- pp -= bpp;
- rp_vec = vec_ld(0,rp);
- vec_ld_unaligned(pp_vec,pp);
-
- a_vec = vsx_char_to_short(vec_perm(rp_vec , VSX_CHAR_ZERO , VSX_LEFTSHIFTED1_4),1,4);
- b_vec = vsx_char_to_short(vec_perm(pp_vec , VSX_CHAR_ZERO , VSX_NOT_SHIFTED1_4),1,4);
- c_vec = vsx_char_to_short(vec_perm(pp_vec , VSX_CHAR_ZERO , VSX_LEFTSHIFTED1_4),1,4);
- pa_vec = (vector signed short) vec_sub(b_vec,c_vec);
- pb_vec = (vector signed short) vec_sub(a_vec , c_vec);
- pc_vec = vec_add(pa_vec,pb_vec);
- pa_vec = vec_abs(pa_vec);
- pb_vec = vec_abs(pb_vec);
- pc_vec = vec_abs(pc_vec);
- smallest_vec = vec_min(pc_vec, vec_min(pa_vec,pb_vec));
- nearest_vec = if_then_else(
- vec_cmpeq(pa_vec,smallest_vec),
- a_vec,
- if_then_else(
- vec_cmpeq(pb_vec,smallest_vec),
- b_vec,
- c_vec
- )
- );
- rp_vec = vec_add(rp_vec,(vsx_short_to_char(nearest_vec,1,4)));
-
- a_vec = vsx_char_to_short(vec_perm(rp_vec , VSX_CHAR_ZERO , VSX_LEFTSHIFTED2_4),2,4);
- b_vec = vsx_char_to_short(vec_perm(pp_vec , VSX_CHAR_ZERO , VSX_NOT_SHIFTED2_4),2,4);
- c_vec = vsx_char_to_short(vec_perm(pp_vec , VSX_CHAR_ZERO , VSX_LEFTSHIFTED2_4),2,4);
- pa_vec = (vector signed short) vec_sub(b_vec,c_vec);
- pb_vec = (vector signed short) vec_sub(a_vec , c_vec);
- pc_vec = vec_add(pa_vec,pb_vec);
- pa_vec = vec_abs(pa_vec);
- pb_vec = vec_abs(pb_vec);
- pc_vec = vec_abs(pc_vec);
- smallest_vec = vec_min(pc_vec, vec_min(pa_vec,pb_vec));
- nearest_vec = if_then_else(
- vec_cmpeq(pa_vec,smallest_vec),
- a_vec,
- if_then_else(
- vec_cmpeq(pb_vec,smallest_vec),
- b_vec,
- c_vec
- )
- );
- rp_vec = vec_add(rp_vec,(vsx_short_to_char(nearest_vec,2,4)));
-
- a_vec = vsx_char_to_short(vec_perm(rp_vec , VSX_CHAR_ZERO , VSX_LEFTSHIFTED3_4),3,4);
- b_vec = vsx_char_to_short(vec_perm(pp_vec , VSX_CHAR_ZERO , VSX_NOT_SHIFTED3_4),3,4);
- c_vec = vsx_char_to_short(vec_perm(pp_vec , VSX_CHAR_ZERO , VSX_LEFTSHIFTED3_4),3,4);
- pa_vec = (vector signed short) vec_sub(b_vec,c_vec);
- pb_vec = (vector signed short) vec_sub(a_vec , c_vec);
- pc_vec = vec_add(pa_vec,pb_vec);
- pa_vec = vec_abs(pa_vec);
- pb_vec = vec_abs(pb_vec);
- pc_vec = vec_abs(pc_vec);
- smallest_vec = vec_min(pc_vec, vec_min(pa_vec,pb_vec));
- nearest_vec = if_then_else(
- vec_cmpeq(pa_vec,smallest_vec),
- a_vec,
- if_then_else(
- vec_cmpeq(pb_vec,smallest_vec),
- b_vec,
- c_vec
- )
- );
- rp_vec = vec_add(rp_vec,(vsx_short_to_char(nearest_vec,3,4)));
-
- vec_st(rp_vec,0,rp);
-
- rp += 16;
- pp += 16;
- istop -= 16;
- }
-
- if(istop > 0)
- for (i = 0; i < istop % 16; i++)
- {
- vsx_paeth_process(rp,pp,a,b,c,pa,pb,pc,bpp)
- }
-}
-
-void png_read_filter_row_paeth3_vsx(png_row_infop row_info, png_bytep row,
- png_const_bytep prev_row)
-{
- png_byte bpp = 3;
-
- int a, b, c, pa, pb, pc, p;
- vector unsigned char rp_vec;
- vector unsigned char pp_vec;
- vector unsigned short a_vec,b_vec,c_vec,nearest_vec;
- vector signed short pa_vec,pb_vec,pc_vec,smallest_vec;
-
- vsx_declare_common_vars(row_info,row,prev_row,bpp)
- rp -= bpp;
- if(istop >= bpp)
- istop -= bpp;
-
- /* Process the first pixel in the row completely (this is the same as 'up'
- * because there is only one candidate predictor for the first row).
- */
- for(i = 0; i < bpp ; i++)
- {
- *rp = (png_byte)( *rp + *pp);
- rp++;
- pp++;
- }
-
- for(i = 0; i < unaligned_top ; i++)
- {
- vsx_paeth_process(rp,pp,a,b,c,pa,pb,pc,bpp)
- }
-
- while( istop >= 16)
- {
- for(i = 0; i < bpp ; i++)
- {
- vsx_paeth_process(rp,pp,a,b,c,pa,pb,pc,bpp)
- }
-
- rp -= bpp;
- pp -= bpp;
- rp_vec = vec_ld(0,rp);
- vec_ld_unaligned(pp_vec,pp);
-
- a_vec = vsx_char_to_short(vec_perm(rp_vec , VSX_CHAR_ZERO , VSX_LEFTSHIFTED1_3),1,3);
- b_vec = vsx_char_to_short(vec_perm(pp_vec , VSX_CHAR_ZERO , VSX_NOT_SHIFTED1_3),1,3);
- c_vec = vsx_char_to_short(vec_perm(pp_vec , VSX_CHAR_ZERO , VSX_LEFTSHIFTED1_3),1,3);
- pa_vec = (vector signed short) vec_sub(b_vec,c_vec);
- pb_vec = (vector signed short) vec_sub(a_vec , c_vec);
- pc_vec = vec_add(pa_vec,pb_vec);
- pa_vec = vec_abs(pa_vec);
- pb_vec = vec_abs(pb_vec);
- pc_vec = vec_abs(pc_vec);
- smallest_vec = vec_min(pc_vec, vec_min(pa_vec,pb_vec));
- nearest_vec = if_then_else(
- vec_cmpeq(pa_vec,smallest_vec),
- a_vec,
- if_then_else(
- vec_cmpeq(pb_vec,smallest_vec),
- b_vec,
- c_vec
- )
- );
- rp_vec = vec_add(rp_vec,(vsx_short_to_char(nearest_vec,1,3)));
-
- a_vec = vsx_char_to_short(vec_perm(rp_vec , VSX_CHAR_ZERO , VSX_LEFTSHIFTED2_3),2,3);
- b_vec = vsx_char_to_short(vec_perm(pp_vec , VSX_CHAR_ZERO , VSX_NOT_SHIFTED2_3),2,3);
- c_vec = vsx_char_to_short(vec_perm(pp_vec , VSX_CHAR_ZERO , VSX_LEFTSHIFTED2_3),2,3);
- pa_vec = (vector signed short) vec_sub(b_vec,c_vec);
- pb_vec = (vector signed short) vec_sub(a_vec , c_vec);
- pc_vec = vec_add(pa_vec,pb_vec);
- pa_vec = vec_abs(pa_vec);
- pb_vec = vec_abs(pb_vec);
- pc_vec = vec_abs(pc_vec);
- smallest_vec = vec_min(pc_vec, vec_min(pa_vec,pb_vec));
- nearest_vec = if_then_else(
- vec_cmpeq(pa_vec,smallest_vec),
- a_vec,
- if_then_else(
- vec_cmpeq(pb_vec,smallest_vec),
- b_vec,
- c_vec
- )
- );
- rp_vec = vec_add(rp_vec,(vsx_short_to_char(nearest_vec,2,3)));
-
- a_vec = vsx_char_to_short(vec_perm(rp_vec , VSX_CHAR_ZERO , VSX_LEFTSHIFTED3_3),3,3);
- b_vec = vsx_char_to_short(vec_perm(pp_vec , VSX_CHAR_ZERO , VSX_NOT_SHIFTED3_3),3,3);
- c_vec = vsx_char_to_short(vec_perm(pp_vec , VSX_CHAR_ZERO , VSX_LEFTSHIFTED3_3),3,3);
- pa_vec = (vector signed short) vec_sub(b_vec,c_vec);
- pb_vec = (vector signed short) vec_sub(a_vec , c_vec);
- pc_vec = vec_add(pa_vec,pb_vec);
- pa_vec = vec_abs(pa_vec);
- pb_vec = vec_abs(pb_vec);
- pc_vec = vec_abs(pc_vec);
- smallest_vec = vec_min(pc_vec, vec_min(pa_vec,pb_vec));
- nearest_vec = if_then_else(
- vec_cmpeq(pa_vec,smallest_vec),
- a_vec,
- if_then_else(
- vec_cmpeq(pb_vec,smallest_vec),
- b_vec,
- c_vec
- )
- );
- rp_vec = vec_add(rp_vec,(vsx_short_to_char(nearest_vec,3,3)));
-
- a_vec = vsx_char_to_short(vec_perm(rp_vec , VSX_CHAR_ZERO , VSX_LEFTSHIFTED4_3),4,3);
- b_vec = vsx_char_to_short(vec_perm(pp_vec , VSX_CHAR_ZERO , VSX_NOT_SHIFTED4_3),4,3);
- c_vec = vsx_char_to_short(vec_perm(pp_vec , VSX_CHAR_ZERO , VSX_LEFTSHIFTED4_3),4,3);
- pa_vec = (vector signed short) vec_sub(b_vec,c_vec);
- pb_vec = (vector signed short) vec_sub(a_vec , c_vec);
- pc_vec = vec_add(pa_vec,pb_vec);
- pa_vec = vec_abs(pa_vec);
- pb_vec = vec_abs(pb_vec);
- pc_vec = vec_abs(pc_vec);
- smallest_vec = vec_min(pc_vec, vec_min(pa_vec,pb_vec));
- nearest_vec = if_then_else(
- vec_cmpeq(pa_vec,smallest_vec),
- a_vec,
- if_then_else(
- vec_cmpeq(pb_vec,smallest_vec),
- b_vec,
- c_vec
- )
- );
- rp_vec = vec_add(rp_vec,(vsx_short_to_char(nearest_vec,4,3)));
-
- vec_st(rp_vec,0,rp);
-
- rp += 15;
- pp += 15;
- istop -= 16;
-
- /* Since 16 % bpp = 16 % 3 = 1, last element of array must
- * be proceeded manually
- */
- vsx_paeth_process(rp,pp,a,b,c,pa,pb,pc,bpp)
- }
-
- if(istop > 0)
- for (i = 0; i < istop % 16; i++)
- {
- vsx_paeth_process(rp,pp,a,b,c,pa,pb,pc,bpp)
- }
-}
-
-#endif /* PNG_POWERPC_VSX_OPT > 0 */
-#endif /* PNG_POWERPC_VSX_IMPLEMENTATION == 1 (intrinsics) */
-#endif /* READ */
diff --git a/3rdparty/libpng/libpng-1.6.37/powerpc/filter_vsx_intrinsics.lo b/3rdparty/libpng/libpng-1.6.37/powerpc/filter_vsx_intrinsics.lo
deleted file mode 100644
index 508340c..0000000
--- a/3rdparty/libpng/libpng-1.6.37/powerpc/filter_vsx_intrinsics.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# powerpc/filter_vsx_intrinsics.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/filter_vsx_intrinsics.o'
-
-# Name of the non-PIC object
-non_pic_object='filter_vsx_intrinsics.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/powerpc/filter_vsx_intrinsics.o b/3rdparty/libpng/libpng-1.6.37/powerpc/filter_vsx_intrinsics.o
deleted file mode 100644
index f2c5454..0000000
--- a/3rdparty/libpng/libpng-1.6.37/powerpc/filter_vsx_intrinsics.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/powerpc/powerpc_init.c b/3rdparty/libpng/libpng-1.6.37/powerpc/powerpc_init.c
deleted file mode 100644
index 54426c5..0000000
--- a/3rdparty/libpng/libpng-1.6.37/powerpc/powerpc_init.c
+++ /dev/null
@@ -1,126 +0,0 @@
-
-/* powerpc_init.c - POWERPC optimised filter functions
- *
- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 2017 Glenn Randers-Pehrson
- * Written by Vadim Barkov, 2017.
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-/* Below, after checking __linux__, various non-C90 POSIX 1003.1 functions are
- * called.
- */
-#define _POSIX_SOURCE 1
-
-#include <stdio.h>
-#include "../pngpriv.h"
-
-#ifdef PNG_READ_SUPPORTED
-
-#if PNG_POWERPC_VSX_OPT > 0
-#ifdef PNG_POWERPC_VSX_CHECK_SUPPORTED /* Do run-time checks */
-/* WARNING: it is strongly recommended that you do not build libpng with
- * run-time checks for CPU features if at all possible. In the case of the PowerPC
- * VSX instructions there is no processor-specific way of detecting the
- * presence of the required support, therefore run-time detection is extremely
- * OS specific.
- *
- * You may set the macro PNG_POWERPC_VSX_FILE to the file name of file containing
- * a fragment of C source code which defines the png_have_vsx function. There
- * are a number of implementations in contrib/powerpc-vsx, but the only one that
- * has partial support is contrib/powerpc-vsx/linux.c - a generic Linux
- * implementation which reads /proc/cpufino.
- */
-#ifndef PNG_POWERPC_VSX_FILE
-# ifdef __linux__
-# define PNG_POWERPC_VSX_FILE "contrib/powerpc-vsx/linux_aux.c"
-# endif
-#endif
-
-#ifdef PNG_POWERPC_VSX_FILE
-
-#include <signal.h> /* for sig_atomic_t */
-static int png_have_vsx(png_structp png_ptr);
-#include PNG_POWERPC_VSX_FILE
-
-#else /* PNG_POWERPC_VSX_FILE */
-# error "PNG_POWERPC_VSX_FILE undefined: no support for run-time POWERPC VSX checks"
-#endif /* PNG_POWERPC_VSX_FILE */
-#endif /* PNG_POWERPC_VSX_CHECK_SUPPORTED */
-
-void
-png_init_filter_functions_vsx(png_structp pp, unsigned int bpp)
-{
- /* The switch statement is compiled in for POWERPC_VSX_API, the call to
- * png_have_vsx is compiled in for POWERPC_VSX_CHECK. If both are defined
- * the check is only performed if the API has not set the PowerPC option on
- * or off explicitly. In this case the check controls what happens.
- */
-
-#ifdef PNG_POWERPC_VSX_API_SUPPORTED
- switch ((pp->options >> PNG_POWERPC_VSX) & 3)
- {
- case PNG_OPTION_UNSET:
- /* Allow the run-time check to execute if it has been enabled -
- * thus both API and CHECK can be turned on. If it isn't supported
- * this case will fall through to the 'default' below, which just
- * returns.
- */
-#endif /* PNG_POWERPC_VSX_API_SUPPORTED */
-#ifdef PNG_POWERPC_VSX_CHECK_SUPPORTED
- {
- static volatile sig_atomic_t no_vsx = -1; /* not checked */
-
- if (no_vsx < 0)
- no_vsx = !png_have_vsx(pp);
-
- if (no_vsx)
- return;
- }
-#ifdef PNG_POWERPC_VSX_API_SUPPORTED
- break;
-#endif
-#endif /* PNG_POWERPC_VSX_CHECK_SUPPORTED */
-
-#ifdef PNG_POWERPC_VSX_API_SUPPORTED
- default: /* OFF or INVALID */
- return;
-
- case PNG_OPTION_ON:
- /* Option turned on */
- break;
- }
-#endif
-
- /* IMPORTANT: any new internal functions used here must be declared using
- * PNG_INTERNAL_FUNCTION in ../pngpriv.h. This is required so that the
- * 'prefix' option to configure works:
- *
- * ./configure --with-libpng-prefix=foobar_
- *
- * Verify you have got this right by running the above command, doing a build
- * and examining pngprefix.h; it must contain a #define for every external
- * function you add. (Notice that this happens automatically for the
- * initialization function.)
- */
- pp->read_filter[PNG_FILTER_VALUE_UP-1] = png_read_filter_row_up_vsx;
-
- if (bpp == 3)
- {
- pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub3_vsx;
- pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg3_vsx;
- pp->read_filter[PNG_FILTER_VALUE_PAETH-1] = png_read_filter_row_paeth3_vsx;
- }
-
- else if (bpp == 4)
- {
- pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub4_vsx;
- pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg4_vsx;
- pp->read_filter[PNG_FILTER_VALUE_PAETH-1] = png_read_filter_row_paeth4_vsx;
- }
-}
-#endif /* PNG_POWERPC_VSX_OPT > 0 */
-#endif /* READ */
diff --git a/3rdparty/libpng/libpng-1.6.37/powerpc/powerpc_init.lo b/3rdparty/libpng/libpng-1.6.37/powerpc/powerpc_init.lo
deleted file mode 100644
index 282ec1a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/powerpc/powerpc_init.lo
+++ /dev/null
@@ -1,12 +0,0 @@
-# powerpc/powerpc_init.lo - a libtool object file
-# Generated by libtool (GNU libtool) 2.4.6
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/powerpc_init.o'
-
-# Name of the non-PIC object
-non_pic_object='powerpc_init.o'
-
diff --git a/3rdparty/libpng/libpng-1.6.37/powerpc/powerpc_init.o b/3rdparty/libpng/libpng-1.6.37/powerpc/powerpc_init.o
deleted file mode 100644
index efa8a42..0000000
--- a/3rdparty/libpng/libpng-1.6.37/powerpc/powerpc_init.o
+++ /dev/null
Binary files differ
diff --git a/3rdparty/libpng/libpng-1.6.37/projects/owatcom/libpng.tgt b/3rdparty/libpng/libpng-1.6.37/projects/owatcom/libpng.tgt
deleted file mode 100644
index 4a9622e..0000000
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diff --git a/3rdparty/libpng/libpng-1.6.37/projects/owatcom/libpng.wpj b/3rdparty/libpng/libpng-1.6.37/projects/owatcom/libpng.wpj
deleted file mode 100644
index a70d95f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/projects/owatcom/libpng.wpj
+++ /dev/null
@@ -1,112 +0,0 @@
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-@echo Checking for the libpng configuration file pnglibconf.h
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diff --git a/3rdparty/libpng/libpng-1.6.37/projects/owatcom/pngconfig.mak b/3rdparty/libpng/libpng-1.6.37/projects/owatcom/pngconfig.mak
deleted file mode 100644
index 11f1aa7..0000000
--- a/3rdparty/libpng/libpng-1.6.37/projects/owatcom/pngconfig.mak
+++ /dev/null
@@ -1,160 +0,0 @@
-# This is an OpenWatcom make file which builds pnglibconf.h - the libpng
-# configuration header. You can ignore this file if you don't need to
-# configure libpng; a default configuration will be built.
-#
-# For more information build libpng.wpj under the IDE and then read the
-# generated files:
-#
-# config.inf: Basic configuration information for a standard build.
-# pngconfig.dfa: Advanced configuration for non-standard libpng builds.
-#
-DELETE=rm -f
-ECHO=echo
-COPY=copy
-#
-# If your configuration needs to test compiler flags when building
-# pnglibconf.h you may need to override the following on the wmake command
-# line:
-CFLAGS=
-CC=wcl386
-CPP=$(CC) -pw0
-#
-# Read awk from the environment if set, else it can be set on the command
-# line (the default approach is to set the %awk% environment variable in the
-# IDE libpng.wpj 'before' rule - this setting is local.)
-!ifdef %awk
-AWK=$(%awk)
-!endif
-#
-# pnglibconf.h must exist in the source directory, this is the final rule
-# which copies the local built version (and this is the default target for
-# this makefile.)
-..\..\pnglibconf.h: pnglibconf.h
- $(COPY) pnglibconf.h $@
-
-!ifdef AWK
-# CPPFLAGS should contain the options to control the result,
-# but DEFS and CFLAGS are also supported here, override
-# as appropriate
-DFNFLAGS = $(DEFS) $(CPPFLAGS) $(CFLAGS)
-
-pnglibconf.h: pnglibconf.dfn
- $(DELETE) $@ dfn.c dfn1.out dfn2.out
- $(ECHO) $#include "pnglibconf.dfn" >dfn.c
- $(CPP) $(DFNFLAGS) dfn.c >dfn1.out
- $(AWK) -f << dfn1.out >dfn2.out
-/^.*PNG_DEFN_MAGIC-.*-PNG_DEFN_END.*$$/{
- sub(/^.*PNG_DEFN_MAGIC-/, "")
- sub(/ *-PNG_DEFN_END.*$$/, "")
- gsub(/ *@@@ */, "")
- print
-}
-<<
- $(COPY) dfn2.out $@
- @type << >pngconfig.inf
-This is a locally configurable build of libpng.lib; for configuration
-instructions consult and edit projects/openwatcom/pngconfig.dfa
-<<
- $(DELETE) dfn.c dfn1.out dfn2.out
-
-pnglibconf.dfn: ..\..\scripts\pnglibconf.dfa ..\..\scripts\options.awk pngconfig.dfa ..\..\pngconf.h
- $(DELETE) $@ dfn1.out dfn2.out
- $(AWK) -f ..\..\scripts\options.awk out=dfn1.out version=search ..\..\pngconf.h ..\..\scripts\pnglibconf.dfa pngconfig.dfa $(DFA_XTRA) 1>&2
- $(AWK) -f ..\..\scripts\options.awk out=dfn2.out dfn1.out 1>&2
- $(COPY) dfn2.out $@
- $(DELETE) dfn1.out dfn2.out
-
-!else
-# The following lines are used to copy scripts\pnglibconf.h.prebuilt and make
-# the required change to the calling convention.
-#
-# By default libpng is built to use the __cdecl calling convention on
-# Windows. This gives compatibility with MSVC and GCC. Unfortunately it
-# does not work with OpenWatcom because OpenWatcom implements longjmp using
-# the __watcall convention (compared with both MSVC and GCC which use __cdecl
-# for library functions.)
-#
-# Thus the default must be changed to build on OpenWatcom and, once changed,
-# the result will not be compatible with applications built using other
-# compilers (in fact attempts to build will fail at compile time.)
-#
-pnglibconf.h: ..\..\scripts\pnglibconf.h.prebuilt .existsonly
- @$(ECHO) .
- @$(ECHO) .
- @$(ECHO) $$(AWK) NOT AVAILABLE: COPYING scripts\pnglibconf.h.prebuilt
- @$(ECHO) .
- @$(ECHO) .
- vi -q -k ":1,$$s/PNG_API_RULE 0$$/PNG_API_RULE 2/\n:w! $@\n:q!\n" ..\..\scripts\pnglibconf.h.prebuilt
- @$(ECHO) .
- @$(ECHO) .
- @$(ECHO) YOU HAVE A DEFAULT CONFIGURATION BECAUSE YOU DO NOT HAVE AWK!
- @$(ECHO) .
- @$(ECHO) .
- @type << >pngconfig.inf
-This is the default configuration of libpng.lib, if you wish to
-change the configuration please consult the instructions in
-projects/owatcom/pngconfig.dfa.
-<<
-
-!endif
-
-# Make the default files
-defaults: .symbolic
- @$(COPY) << config.inf
-$# The libpng project is incompletely configured. To complete configuration
-$# please complete the following steps:
-$#
-$# 1) Edit the 'before' rule of libpng.wpj (from the IDE) to define the
-$# locations of the zlib include file zlib.h and the built zlib library,
-$# zlib.lib.
-$#
-$# 2) If you want to change libpng to a non-standard configuration also
-$# change the definition of 'awk' in the before rule to the name of your
-$# awk command. For more instructions on configuration read
-$# pngconfig.dfa.
-$#
-$# 3) Delete this file (config.inf).
-<<
- @$(COPY) << pngconfig.dfa
-$# pngconfig.dfa: this file contains configuration options for libpng.
-$# If empty the standard configuration will be built. For this file to be
-$# used a working version of the program 'awk' is required and the program
-$# must be identified in the 'before' rule of the project.
-$#
-$# If you don't already have 'awk', or the version of awk you have seems not
-$# to work, download Brian Kernighan's awk (Brian Kernighan is the author of
-$# awk.) You can find source code and a built executable (called awk95.exe)
-$# here:
-$#
-$# https://www.cs.princeton.edu/~bwk/btl.mirror/
-$#
-$# The executable works just fine.
-$#
-$# If build issues errors after a change to pngconfig.dfa you have entered
-$# inconsistent feature requests, or even malformed requests, in
-$# pngconfig.dfa. The error messages from awk should be comprehensible, but
-$# if not simply go back to the start (nothing but comments in this file) and
-$# enter configuration lines one by one until one produces an error. (Or, of
-$# course, do the standard binary chop.)
-$#
-$# You need to rebuild everything after a change to pnglibconf.dfa - i.e. you
-$# must do Actions/Mark All Targets for Remake. This is because the compiler
-$# generated dependency information (as of OpenWatcom 1.9) does not record the
-$# dependency on pnglibconf.h correctly.
-$#
-$# If awk isn't set then this file is bypassed. If you just want the standard
-$# configuration it is automatically produced from the distributed version
-$# (scripts\pnglibconf.h.prebuilt) by editing PNG_API_RULE to 2 (to force use
-$# of the OpenWatcom library calling convention.)
-$#
-<<
-
-clean:: .symbolic
- $(DELETE) ..\..\pnglibconf.h pnglibconf.* dfn.c *.out pngconfig.inf
- $(DELETE) *.obj *.mbr *.sym *.err *.pch libpng.mk
- $(DELETE) libpng.lib libpng.lbr libpng.lb1 libpng.cbr libpng.mk1
- $(DELETE) pngtest.exe pngtest.map pngtest.lk1 pngtest.mk1
- $(DELETE) pngvalid.exe pngvalid.map pngvalid.lk1 pngvalid.mk1
-
-distclean:: clean .symbolic
- $(DELETE) zlib.inf awk.inf config.inf pngconfig.dfa
diff --git a/3rdparty/libpng/libpng-1.6.37/projects/owatcom/pngstest.tgt b/3rdparty/libpng/libpng-1.6.37/projects/owatcom/pngstest.tgt
deleted file mode 100644
index f5d0245..0000000
--- a/3rdparty/libpng/libpng-1.6.37/projects/owatcom/pngstest.tgt
+++ /dev/null
@@ -1,219 +0,0 @@
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diff --git a/3rdparty/libpng/libpng-1.6.37/projects/owatcom/pngtest.tgt b/3rdparty/libpng/libpng-1.6.37/projects/owatcom/pngtest.tgt
deleted file mode 100644
index 211f1a7..0000000
--- a/3rdparty/libpng/libpng-1.6.37/projects/owatcom/pngtest.tgt
+++ /dev/null
@@ -1,179 +0,0 @@
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diff --git a/3rdparty/libpng/libpng-1.6.37/projects/owatcom/pngvalid.tgt b/3rdparty/libpng/libpng-1.6.37/projects/owatcom/pngvalid.tgt
deleted file mode 100644
index 1e78e75..0000000
--- a/3rdparty/libpng/libpng-1.6.37/projects/owatcom/pngvalid.tgt
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diff --git a/3rdparty/libpng/libpng-1.6.37/projects/visualc71/PRJ0041.mak b/3rdparty/libpng/libpng-1.6.37/projects/visualc71/PRJ0041.mak
deleted file mode 100644
index c7a68b5..0000000
--- a/3rdparty/libpng/libpng-1.6.37/projects/visualc71/PRJ0041.mak
+++ /dev/null
@@ -1,21 +0,0 @@
-# Prevent "Cannot find missing dependency..." warnings while compiling
-# pngwin.rc (PRJ0041).
-
-all: $(IntDir)\alloc.h \
- $(IntDir)\fp.h \
- $(IntDir)\m68881.h \
- $(IntDir)\mem.h \
- $(IntDir)\pngusr.h \
- $(IntDir)\strings.h \
- $(IntDir)\unistd.h \
- $(IntDir)\unixio.h
-
-$(IntDir)\alloc.h \
-$(IntDir)\fp.h \
-$(IntDir)\m68881.h \
-$(IntDir)\mem.h \
-$(IntDir)\pngusr.h \
-$(IntDir)\strings.h \
-$(IntDir)\unistd.h \
-$(IntDir)\unixio.h:
- @!echo.>$@
diff --git a/3rdparty/libpng/libpng-1.6.37/projects/visualc71/README.txt b/3rdparty/libpng/libpng-1.6.37/projects/visualc71/README.txt
deleted file mode 100644
index 4e1c8fa..0000000
--- a/3rdparty/libpng/libpng-1.6.37/projects/visualc71/README.txt
+++ /dev/null
@@ -1,58 +0,0 @@
-Microsoft Developer Studio Project File, Format Version 7.10 for libpng.
-
-Copyright (C) 2004 Simon-Pierre Cadieux.
-
-This code is released under the libpng license.
-For conditions of distribution and use, see copyright notice in png.h
-
-NOTE: This project will be removed from libpng-1.5.0. It has
-been replaced with the "vstudio" project.
-
-Assumptions:
-* The libpng source files are in ..\..
-* The zlib source files are in ..\..\..\zlib
-* The zlib project file is in . /* Warning: This is until the zlib project
- files get integrated into the next zlib release. The final zlib project
- directory will then be ..\..\..\zlib\projects\visualc71. */
-
-To use:
-
-1) On the main menu, select "File | Open Solution".
- Open "libpng.sln".
-
-2) Display the Solution Explorer view (Ctrl+Alt+L)
-
-3) Set one of the project as the StartUp project. If you just want to build the
- binaries set "libpng" as the startup project (Select "libpng" tree view
- item + Project | Set as StartUp project). If you want to build and test the
- binaries set it to "pngtest" (Select "pngtest" tree view item +
- Project | Set as StartUp project)
-
-4) Select "Build | Configuration Manager...".
- Choose the configuration you wish to build.
-
-5) Select "Build | Clean Solution".
-
-6) Select "Build | Build Solution (Ctrl-Shift-B)"
-
-This project builds the libpng binaries as follows:
-
-* Win32_DLL_Release\libpng16.dll DLL build
-* Win32_DLL_Debug\libpng16d.dll DLL build (debug version)
-* Win32_DLL_VB\libpng16vb.dll DLL build for Visual Basic, using stdcall
-* Win32_LIB_Release\libpng.lib static build
-* Win32_LIB_Debug\libpngd.lib static build (debug version)
-
-Notes:
-
-If you change anything in the source files, or select different compiler
-settings, please change the DLL name to something different than any of
-the above names. Also, make sure that in your "pngusr.h" you define
-PNG_USER_PRIVATEBUILD and PNG_USER_DLLFNAME_POSTFIX according to the
-instructions provided in "pngconf.h".
-
-All DLLs built by this project use the Microsoft dynamic C runtime library
-MSVCR71.DLL (MSVCR71D.DLL for debug versions). If you distribute any of the
-above mentioned libraries you may have to include this DLL in your package.
-For a list of files that are redistributable in Visual Studio see
-$(VCINSTALLDIR)\redist.txt.
diff --git a/3rdparty/libpng/libpng-1.6.37/projects/visualc71/README_zlib.txt b/3rdparty/libpng/libpng-1.6.37/projects/visualc71/README_zlib.txt
deleted file mode 100644
index 81d11cb..0000000
--- a/3rdparty/libpng/libpng-1.6.37/projects/visualc71/README_zlib.txt
+++ /dev/null
@@ -1,44 +0,0 @@
-/* WARNING: This file was put in the LibPNG distribution for convenience only.
- It is expected to be part of the next zlib release under
- "projects\visualc71\README.txt." */
-
-Microsoft Developer Studio Project File, Format Version 7.10 for zlib.
-
-Copyright (C) 2004 Simon-Pierre Cadieux.
-Copyright (C) 2004 Cosmin Truta.
-
-This code is released under the libpng license.
-For conditions of distribution and use, see copyright notice in zlib.h.
-
-NOTE: This project will be removed from libpng-1.5.0. It has
-been replaced with the "vstudio" project.
-
-To use:
-
-1) On the main menu, select "File | Open Solution".
- Open "zlib.sln".
-
-2) Display the Solution Explorer view (Ctrl+Alt+L)
-
-3) Set one of the project as the StartUp project. If you just want to build the
- binaries set "zlib" as the startup project (Select "zlib" tree view item +
- Project | Set as StartUp project). If you want to build and test the
- binaries set it to "example" (Select "example" tree view item + Project |
- Set as StartUp project), If you want to build the minigzip utility set it to
- "minigzip" (Select "minigzip" tree view item + Project | Set as StartUp
- project
-
-4) Select "Build | Configuration Manager...".
- Choose the configuration you wish to build.
-
-5) Select "Build | Clean Solution".
-
-6) Select "Build | Build Solution (Ctrl-Shift-B)"
-
-This project builds the zlib binaries as follows:
-
-* Win32_DLL_Release\zlib1.dll DLL build
-* Win32_DLL_Debug\zlib1d.dll DLL build (debug version)
-* Win32_LIB_Release\zlib.lib static build
-* Win32_LIB_Debug\zlibd.lib static build (debug version)
-
diff --git a/3rdparty/libpng/libpng-1.6.37/projects/visualc71/libpng.sln b/3rdparty/libpng/libpng-1.6.37/projects/visualc71/libpng.sln
deleted file mode 100644
index eeb101f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/projects/visualc71/libpng.sln
+++ /dev/null
@@ -1,60 +0,0 @@
-Microsoft Visual Studio Solution File, Format Version 8.00
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libpng", "libpng.vcproj", "{0008960E-E0DD-41A6-8265-00B31DDB4C21}"
- ProjectSection(ProjectDependencies) = postProject
- {2D4F8105-7D21-454C-9932-B47CAB71A5C0} = {2D4F8105-7D21-454C-9932-B47CAB71A5C0}
- EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pngtest", "pngtest.vcproj", "{FD1C2F86-9EEF-47BD-95A4-530917E17FDA}"
- ProjectSection(ProjectDependencies) = postProject
- {0008960E-E0DD-41A6-8265-00B31DDB4C21} = {0008960E-E0DD-41A6-8265-00B31DDB4C21}
- EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlib", "zlib.vcproj", "{2D4F8105-7D21-454C-9932-B47CAB71A5C0}"
- ProjectSection(ProjectDependencies) = postProject
- EndProjectSection
-EndProject
-Global
- GlobalSection(SolutionConfiguration) = preSolution
- DLL Debug = DLL Debug
- DLL Release = DLL Release
- DLL VB = DLL VB
- LIB Debug = LIB Debug
- LIB Release = LIB Release
- EndGlobalSection
- GlobalSection(ProjectConfiguration) = postSolution
- {0008960E-E0DD-41A6-8265-00B31DDB4C21}.DLL Debug.ActiveCfg = DLL Debug|Win32
- {0008960E-E0DD-41A6-8265-00B31DDB4C21}.DLL Debug.Build.0 = DLL Debug|Win32
- {0008960E-E0DD-41A6-8265-00B31DDB4C21}.DLL Release.ActiveCfg = DLL Release|Win32
- {0008960E-E0DD-41A6-8265-00B31DDB4C21}.DLL Release.Build.0 = DLL Release|Win32
- {0008960E-E0DD-41A6-8265-00B31DDB4C21}.DLL VB.ActiveCfg = DLL VB|Win32
- {0008960E-E0DD-41A6-8265-00B31DDB4C21}.DLL VB.Build.0 = DLL VB|Win32
- {0008960E-E0DD-41A6-8265-00B31DDB4C21}.LIB Debug.ActiveCfg = LIB Debug|Win32
- {0008960E-E0DD-41A6-8265-00B31DDB4C21}.LIB Debug.Build.0 = LIB Debug|Win32
- {0008960E-E0DD-41A6-8265-00B31DDB4C21}.LIB Release.ActiveCfg = LIB Release|Win32
- {0008960E-E0DD-41A6-8265-00B31DDB4C21}.LIB Release.Build.0 = LIB Release|Win32
- {FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.DLL Debug.ActiveCfg = DLL Debug|Win32
- {FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.DLL Debug.Build.0 = DLL Debug|Win32
- {FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.DLL Release.ActiveCfg = DLL Release|Win32
- {FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.DLL Release.Build.0 = DLL Release|Win32
- {FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.DLL VB.ActiveCfg = DLL VB|Win32
- {FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.DLL VB.Build.0 = DLL VB|Win32
- {FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.LIB Debug.ActiveCfg = LIB Debug|Win32
- {FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.LIB Debug.Build.0 = LIB Debug|Win32
- {FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.LIB Release.ActiveCfg = LIB Release|Win32
- {FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.LIB Release.Build.0 = LIB Release|Win32
- {2D4F8105-7D21-454C-9932-B47CAB71A5C0}.DLL Debug.ActiveCfg = DLL Debug|Win32
- {2D4F8105-7D21-454C-9932-B47CAB71A5C0}.DLL Debug.Build.0 = DLL Debug|Win32
- {2D4F8105-7D21-454C-9932-B47CAB71A5C0}.DLL Release.ActiveCfg = DLL Release|Win32
- {2D4F8105-7D21-454C-9932-B47CAB71A5C0}.DLL Release.Build.0 = DLL Release|Win32
- {2D4F8105-7D21-454C-9932-B47CAB71A5C0}.DLL VB.ActiveCfg = DLL Release|Win32
- {2D4F8105-7D21-454C-9932-B47CAB71A5C0}.DLL VB.Build.0 = DLL Release|Win32
- {2D4F8105-7D21-454C-9932-B47CAB71A5C0}.LIB Debug.ActiveCfg = LIB Debug|Win32
- {2D4F8105-7D21-454C-9932-B47CAB71A5C0}.LIB Debug.Build.0 = LIB Debug|Win32
- {2D4F8105-7D21-454C-9932-B47CAB71A5C0}.LIB Release.ActiveCfg = LIB Release|Win32
- {2D4F8105-7D21-454C-9932-B47CAB71A5C0}.LIB Release.Build.0 = LIB Release|Win32
- EndGlobalSection
- GlobalSection(ExtensibilityGlobals) = postSolution
- EndGlobalSection
- GlobalSection(ExtensibilityAddIns) = postSolution
- EndGlobalSection
-EndGlobal
diff --git a/3rdparty/libpng/libpng-1.6.37/projects/visualc71/libpng.vcproj b/3rdparty/libpng/libpng-1.6.37/projects/visualc71/libpng.vcproj
deleted file mode 100644
index 608ec4e..0000000
--- a/3rdparty/libpng/libpng-1.6.37/projects/visualc71/libpng.vcproj
+++ /dev/null
@@ -1,419 +0,0 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
- ProjectType="Visual C++"
- Version="7.10"
- Name="libpng"
- RootNamespace="libpng">
- <Platforms>
- <Platform
- Name="Win32"/>
- </Platforms>
- <Configurations>
- <Configuration
- Name="DLL Release|Win32"
- OutputDirectory=".\Win32_DLL_Release"
- IntermediateDirectory=".\Win32_DLL_Release"
- ConfigurationType="2">
- <Tool
- Name="VCCLCompilerTool"
- InlineFunctionExpansion="1"
- AdditionalIncludeDirectories="..\..;..\..\..\zlib"
- PreprocessorDefinitions="WIN32;NDEBUG;PNG_BUILD_DLL;ZLIB_DLL;_CRT_SECURE_NO_WARNINGS"
- StringPooling="TRUE"
- RuntimeLibrary="2"
- EnableFunctionLevelLinking="TRUE"
- UsePrecompiledHeader="3"
- PrecompiledHeaderThrough="pngpriv.h"
- WarningLevel="3"
- CompileAs="0"/>
- <Tool
- Name="VCCustomBuildTool"/>
- <Tool
- Name="VCLinkerTool"
- OutputFile="$(OutDir)/libpng16.dll"
- LinkIncremental="1"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"/>
- <Tool
- Name="VCPreBuildEventTool"
- CommandLine="copy ..\..\scripts\pnglibconf.h.prebuilt ..\..\pnglibconf.h"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"
- PreprocessorDefinitions="NDEBUG"
- Culture="1033"
- AdditionalIncludeDirectories="..\..;..\..\..\zlib;$(IntDir)"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- <Configuration
- Name="DLL Debug|Win32"
- OutputDirectory=".\Win32_DLL_Debug"
- IntermediateDirectory=".\Win32_DLL_Debug"
- ConfigurationType="2">
- <Tool
- Name="VCCLCompilerTool"
- Optimization="0"
- AdditionalIncludeDirectories="..\..;..\..\..\zlib"
- PreprocessorDefinitions="WIN32;_DEBUG;DEBUG;PNG_DEBUG=1;PNG_BUILD_DLL;ZLIB_DLL;_CRT_SECURE_NO_WARNINGS"
- BasicRuntimeChecks="3"
- RuntimeLibrary="3"
- UsePrecompiledHeader="3"
- PrecompiledHeaderThrough="pngpriv.h"
- WarningLevel="3"
- DebugInformationFormat="4"
- CompileAs="0"/>
- <Tool
- Name="VCCustomBuildTool"/>
- <Tool
- Name="VCLinkerTool"
- OutputFile="$(OutDir)/libpng16d.dll"
- GenerateDebugInformation="TRUE"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"/>
- <Tool
- Name="VCPreBuildEventTool"
- CommandLine="copy ..\..\scripts\pnglibconf.h.prebuilt ..\..\pnglibconf.h"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"
- PreprocessorDefinitions="_DEBUG,PNG_DEBUG=1"
- Culture="1033"
- AdditionalIncludeDirectories="..\..;..\..\..\zlib;$(IntDir)"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- <Configuration
- Name="DLL VB|Win32"
- OutputDirectory=".\Win32_DLL_VB"
- IntermediateDirectory=".\Win32_DLL_VB"
- ConfigurationType="2">
- <Tool
- Name="VCCLCompilerTool"
- InlineFunctionExpansion="1"
- AdditionalIncludeDirectories="..\..;..\..\..\zlib"
- PreprocessorDefinitions="WIN32;NDEBUG;PNG_BUILD_DLL;ZLIB_DLL;PNGAPI=__stdcall;PNG_NO_MODULEDEF;PNG_LIBPNG_SPECIALBUILD;PNG_USER_PRIVATEBUILD;_CRT_SECURE_NO_WARNINGS"
- StringPooling="TRUE"
- RuntimeLibrary="2"
- EnableFunctionLevelLinking="TRUE"
- UsePrecompiledHeader="3"
- PrecompiledHeaderThrough="pngpriv.h"
- WarningLevel="3"
- CompileAs="0"/>
- <Tool
- Name="VCCustomBuildTool"/>
- <Tool
- Name="VCLinkerTool"
- OutputFile="$(OutDir)/libpng16vb.dll"
- LinkIncremental="1"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"/>
- <Tool
- Name="VCPreBuildEventTool"
- CommandLine="copy ..\..\scripts\pnglibconf.h.prebuilt ..\..\pnglibconf.h"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"
- AdditionalOptions="/d PNG_NO_PEDANTIC_WARNINGS /d PNG_LIBPNG_DLLFNAME_POSTFIX=""""VB"""" /d PNG_LIBPNG_SPECIALBUILD=""""__stdcall calling convention used for exported functions"""""
- PreprocessorDefinitions="NDEBUG"
- Culture="1033"
- AdditionalIncludeDirectories="..\..;..\..\..\zlib;$(IntDir)"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- <Configuration
- Name="LIB Release|Win32"
- OutputDirectory=".\Win32_LIB_Release"
- IntermediateDirectory=".\Win32_LIB_Release"
- ConfigurationType="4">
- <Tool
- Name="VCCLCompilerTool"
- InlineFunctionExpansion="1"
- AdditionalIncludeDirectories="..\..;..\..\..\zlib"
- PreprocessorDefinitions="WIN32;NDEBUG;_CRT_SECURE_NO_WARNINGS"
- StringPooling="TRUE"
- RuntimeLibrary="0"
- EnableFunctionLevelLinking="TRUE"
- UsePrecompiledHeader="3"
- PrecompiledHeaderThrough="pngpriv.h"
- WarningLevel="3"
- CompileAs="0"/>
- <Tool
- Name="VCCustomBuildTool"/>
- <Tool
- Name="VCLibrarianTool"
- OutputFile="$(OutDir)/libpng.lib"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"/>
- <Tool
- Name="VCPreBuildEventTool"
- CommandLine="copy ..\..\scripts\pnglibconf.h.prebuilt ..\..\pnglibconf.h"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- <Configuration
- Name="LIB Debug|Win32"
- OutputDirectory=".\Win32_LIB_Debug"
- IntermediateDirectory=".\Win32_LIB_Debug"
- ConfigurationType="4">
- <Tool
- Name="VCCLCompilerTool"
- Optimization="0"
- AdditionalIncludeDirectories="..\..;..\..\..\zlib"
- PreprocessorDefinitions="WIN32;_DEBUG;DEBUG;PNG_DEBUG=1;_CRT_SECURE_NO_WARNINGS"
- BasicRuntimeChecks="3"
- RuntimeLibrary="1"
- UsePrecompiledHeader="3"
- PrecompiledHeaderThrough="pngpriv.h"
- WarningLevel="3"
- DebugInformationFormat="4"
- CompileAs="0"/>
- <Tool
- Name="VCCustomBuildTool"/>
- <Tool
- Name="VCLibrarianTool"
- OutputFile="$(OutDir)/libpngd.lib"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"/>
- <Tool
- Name="VCPreBuildEventTool"
- CommandLine="copy ..\..\scripts\pnglibconf.h.prebuilt ..\..\pnglibconf.h"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- </Configurations>
- <References>
- </References>
- <Files>
- <Filter
- Name="Source Files"
- Filter="cpp;c;cxx;rc;def;r;odl;idl;hpj;bat">
- <File
- RelativePath="..\..\png.c">
- <FileConfiguration
- Name="DLL Release|Win32">
- <Tool
- Name="VCCLCompilerTool"
- UsePrecompiledHeader="0"/>
- </FileConfiguration>
- <FileConfiguration
- Name="DLL Debug|Win32">
- <Tool
- Name="VCCLCompilerTool"
- UsePrecompiledHeader="0"/>
- </FileConfiguration>
- <FileConfiguration
- Name="DLL VB|Win32">
- <Tool
- Name="VCCLCompilerTool"
- UsePrecompiledHeader="0"/>
- </FileConfiguration>
- <FileConfiguration
- Name="LIB Release|Win32">
- <Tool
- Name="VCCLCompilerTool"
- UsePrecompiledHeader="0"/>
- </FileConfiguration>
- <FileConfiguration
- Name="LIB Debug|Win32">
- <Tool
- Name="VCCLCompilerTool"
- UsePrecompiledHeader="0"/>
- </FileConfiguration>
- </File>
- <File
- RelativePath="..\..\pngerror.c">
- <FileConfiguration
- Name="DLL Release|Win32">
- <Tool
- Name="VCCLCompilerTool"
- UsePrecompiledHeader="1"/>
- </FileConfiguration>
- <FileConfiguration
- Name="DLL Debug|Win32">
- <Tool
- Name="VCCLCompilerTool"
- UsePrecompiledHeader="1"/>
- </FileConfiguration>
- <FileConfiguration
- Name="DLL VB|Win32">
- <Tool
- Name="VCCLCompilerTool"
- UsePrecompiledHeader="1"/>
- </FileConfiguration>
- <FileConfiguration
- Name="LIB Release|Win32">
- <Tool
- Name="VCCLCompilerTool"
- UsePrecompiledHeader="1"/>
- </FileConfiguration>
- <FileConfiguration
- Name="LIB Debug|Win32">
- <Tool
- Name="VCCLCompilerTool"
- UsePrecompiledHeader="1"/>
- </FileConfiguration>
- </File>
- <File
- RelativePath="..\..\pngget.c">
- </File>
- <File
- RelativePath="..\..\pngmem.c">
- </File>
- <File
- RelativePath="..\..\pngpread.c">
- </File>
- <File
- RelativePath="..\..\pngread.c">
- </File>
- <File
- RelativePath="..\..\pngrio.c">
- </File>
- <File
- RelativePath="..\..\pngrtran.c">
- </File>
- <File
- RelativePath="..\..\pngrutil.c">
- </File>
- <File
- RelativePath="..\..\pngset.c">
- </File>
- <File
- RelativePath="..\..\pngtrans.c">
- </File>
- <File
- RelativePath="..\..\pngwio.c">
- </File>
- <File
- RelativePath="..\..\pngwrite.c">
- </File>
- <File
- RelativePath="..\..\pngwtran.c">
- </File>
- <File
- RelativePath="..\..\pngwutil.c">
- </File>
- </Filter>
- <Filter
- Name="Header Files"
- Filter="h;hpp;hxx;hm;inl">
- <File
- RelativePath="..\..\png.h">
- </File>
- <File
- RelativePath="..\..\pngconf.h">
- </File>
- <File
- RelativePath="..\..\pngpriv.h">
- </File>
- </Filter>
- <Filter
- Name="Resource Files"
- Filter="ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe">
- <File
- RelativePath="..\..\scripts\pngwin.rc">
- <FileConfiguration
- Name="LIB Release|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCResourceCompilerTool"/>
- </FileConfiguration>
- <FileConfiguration
- Name="LIB Debug|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCResourceCompilerTool"/>
- </FileConfiguration>
- </File>
- </Filter>
- <File
- RelativePath=".\PRJ0041.mak">
- <FileConfiguration
- Name="DLL Release|Win32">
- <Tool
- Name="VCCustomBuildTool"
- Description="Create dummy include files to prevent "Cannot find missing dependency..." warnings."
- CommandLine="nmake -f PRJ0041.mak IntDir=$(IntDir)"
- Outputs="$(IntDir)\alloc.h;$(IntDir)\fp.h;$(IntDir)\m68881.h;$(IntDir)\mem.h;$(IntDir)\pngusr.h;$(IntDir)\strings.h;$(IntDir)\unistd.h;$(IntDir)\unixio.h"/>
- </FileConfiguration>
- <FileConfiguration
- Name="DLL Debug|Win32">
- <Tool
- Name="VCCustomBuildTool"
- Description="Create dummy include files to prevent "Cannot find missing dependency..." warnings."
- CommandLine="nmake -f PRJ0041.mak IntDir=$(IntDir)"
- Outputs="$(IntDir)\alloc.h;$(IntDir)\fp.h;$(IntDir)\m68881.h;$(IntDir)\mem.h;$(IntDir)\pngusr.h;$(IntDir)\strings.h;$(IntDir)\unistd.h;$(IntDir)\unixio.h"/>
- </FileConfiguration>
- <FileConfiguration
- Name="DLL VB|Win32">
- <Tool
- Name="VCCustomBuildTool"
- Description="Create dummy include files to prevent "Cannot find missing dependency..." warnings."
- CommandLine="nmake -f PRJ0041.mak IntDir=$(IntDir)"
- Outputs="$(IntDir)\alloc.h;$(IntDir)\fp.h;$(IntDir)\m68881.h;$(IntDir)\mem.h;$(IntDir)\pngusr.h;$(IntDir)\strings.h;$(IntDir)\unistd.h;$(IntDir)\unixio.h"/>
- </FileConfiguration>
- </File>
- <File
- RelativePath="README.txt">
- </File>
- </Files>
- <Globals>
- </Globals>
-</VisualStudioProject>
diff --git a/3rdparty/libpng/libpng-1.6.37/projects/visualc71/pngtest.vcproj b/3rdparty/libpng/libpng-1.6.37/projects/visualc71/pngtest.vcproj
deleted file mode 100644
index 3b48f1c..0000000
--- a/3rdparty/libpng/libpng-1.6.37/projects/visualc71/pngtest.vcproj
+++ /dev/null
@@ -1,267 +0,0 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
- ProjectType="Visual C++"
- Version="7.10"
- Name="pngtest"
- RootNamespace="pngtest">
- <Platforms>
- <Platform
- Name="Win32"/>
- </Platforms>
- <Configurations>
- <Configuration
- Name="DLL Release|Win32"
- OutputDirectory=".\Win32_DLL_Release\Test"
- IntermediateDirectory=".\Win32_DLL_Release\Test"
- ConfigurationType="1">
- <Tool
- Name="VCCLCompilerTool"
- InlineFunctionExpansion="1"
- AdditionalIncludeDirectories="..\..\scripts;..\..\..\zlib"
- PreprocessorDefinitions="WIN32;NDEBUG;PNG_DLL;PNG_NO_STDIO;_CRT_SECURE_NO_WARNINGS"
- StringPooling="TRUE"
- RuntimeLibrary="2"
- EnableFunctionLevelLinking="TRUE"
- WarningLevel="3"
- CompileAs="0"/>
- <Tool
- Name="VCCustomBuildTool"
- Description="Testing..."
- CommandLine="set path=$(OutDir)\..;$(OutDir)\..\ZLib
-$(TargetPath) ..\..\pngtest.png $(IntDir)\pngout.png"
- Outputs="$(IntDir)\pngout.png"/>
- <Tool
- Name="VCLinkerTool"
- OutputFile="$(OutDir)/pngtest.exe"
- LinkIncremental="1"
- SubSystem="1"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"/>
- <Tool
- Name="VCPreBuildEventTool"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- <Configuration
- Name="DLL Debug|Win32"
- OutputDirectory=".\Win32_DLL_Debug\Test"
- IntermediateDirectory=".\Win32_DLL_Debug\Test"
- ConfigurationType="1">
- <Tool
- Name="VCCLCompilerTool"
- Optimization="0"
- AdditionalIncludeDirectories="..\..\scripts;..\..\..\zlib"
- PreprocessorDefinitions="WIN32;_DEBUG;PNG_DLL;PNG_NO_STDIO;_CRT_SECURE_NO_WARNINGS"
- BasicRuntimeChecks="3"
- RuntimeLibrary="3"
- WarningLevel="3"
- DebugInformationFormat="4"
- CompileAs="0"/>
- <Tool
- Name="VCCustomBuildTool"
- Description="Testing..."
- CommandLine="set path=$(OutDir)\..;$(OutDir)\..\ZLib
-$(TargetPath) ..\..\pngtest.png $(IntDir)\pngout.png"
- Outputs="$(IntDir)\pngout.png"/>
- <Tool
- Name="VCLinkerTool"
- OutputFile="$(OutDir)/pngtest.exe"
- GenerateDebugInformation="TRUE"
- SubSystem="1"
- TargetMachine="1"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"/>
- <Tool
- Name="VCPreBuildEventTool"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- <Configuration
- Name="DLL VB|Win32"
- OutputDirectory=".\Win32_DLL_VB\Test"
- IntermediateDirectory=".\Win32_DLL_VB\Test"
- ConfigurationType="1">
- <Tool
- Name="VCCLCompilerTool"
- InlineFunctionExpansion="1"
- AdditionalIncludeDirectories="..\..\scripts;..\..\..\zlib"
- PreprocessorDefinitions="WIN32;NDEBUG;PNG_DLL;PNG_NO_STDIO;PNGAPI=__stdcall;PNG_USER_PRIVATEBUILD;_CRT_SECURE_NO_WARNINGS"
- StringPooling="TRUE"
- RuntimeLibrary="2"
- EnableFunctionLevelLinking="TRUE"
- WarningLevel="2"
- CallingConvention="2"
- CompileAs="0"/>
- <Tool
- Name="VCCustomBuildTool"
- Description="Testing..."
- CommandLine="set path=$(OutDir)\..;$(OutDir)\..\..\Win32_DLL_Release\ZLib
-$(TargetPath) ..\..\pngtest.png $(IntDir)\pngout.png"
- Outputs="$(IntDir)\pngout.png"/>
- <Tool
- Name="VCLinkerTool"
- OutputFile="$(OutDir)/pngtest.exe"
- LinkIncremental="1"
- IgnoreDefaultLibraryNames="$(IntDir)\libpng16b.lib"
- SubSystem="1"
- TargetMachine="1"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"/>
- <Tool
- Name="VCPreBuildEventTool"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- <Configuration
- Name="LIB Release|Win32"
- OutputDirectory=".\Win32_LIB_Release\Test"
- IntermediateDirectory=".\Win32_LIB_Release\Test"
- ConfigurationType="1">
- <Tool
- Name="VCCLCompilerTool"
- InlineFunctionExpansion="1"
- AdditionalIncludeDirectories="..\..\scripts;..\..\..\zlib"
- PreprocessorDefinitions="WIN32;_DEBUG;_CRT_SECURE_NO_WARNINGS"
- StringPooling="TRUE"
- RuntimeLibrary="0"
- EnableFunctionLevelLinking="TRUE"
- WarningLevel="3"
- CompileAs="0"/>
- <Tool
- Name="VCCustomBuildTool"
- Description="Testing..."
- CommandLine="set path=$(OutDir)\..;$(OutDir)\..\ZLib
-$(TargetPath) ..\..\pngtest.png $(IntDir)\pngout.png"
- Outputs="$(IntDir)\pngout.png"/>
- <Tool
- Name="VCLinkerTool"
- OutputFile="$(OutDir)/pngtest.exe"
- LinkIncremental="1"
- SubSystem="1"
- TargetMachine="1"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"/>
- <Tool
- Name="VCPreBuildEventTool"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- <Configuration
- Name="LIB Debug|Win32"
- OutputDirectory=".\Win32_LIB_Debug\Test"
- IntermediateDirectory=".\Win32_LIB_Debug\Test"
- ConfigurationType="1">
- <Tool
- Name="VCCLCompilerTool"
- Optimization="0"
- AdditionalIncludeDirectories="..\..\scripts;..\..\..\zlib"
- PreprocessorDefinitions="WIN32;_DEBUG;_CRT_SECURE_NO_WARNINGS"
- BasicRuntimeChecks="3"
- RuntimeLibrary="1"
- WarningLevel="3"
- DebugInformationFormat="4"
- CompileAs="0"/>
- <Tool
- Name="VCCustomBuildTool"
- Description="Testing..."
- CommandLine="set path=$(OutDir)\..;$(OutDir)\..\ZLib
-$(TargetPath) ..\..\pngtest.png $(IntDir)\pngout.png"
- Outputs="$(IntDir)\pngout.png"/>
- <Tool
- Name="VCLinkerTool"
- OutputFile="$(OutDir)/pngtest.exe"
- GenerateDebugInformation="TRUE"
- SubSystem="1"
- TargetMachine="1"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"/>
- <Tool
- Name="VCPreBuildEventTool"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- </Configurations>
- <References>
- </References>
- <Files>
- <Filter
- Name="Source Files"
- Filter="cpp;c;cxx;rc;def;r;odl;idl;hpj;bat">
- <File
- RelativePath="..\..\pngtest.c">
- </File>
- </Filter>
- </Files>
- <Globals>
- </Globals>
-</VisualStudioProject>
diff --git a/3rdparty/libpng/libpng-1.6.37/projects/visualc71/zlib.vcproj b/3rdparty/libpng/libpng-1.6.37/projects/visualc71/zlib.vcproj
deleted file mode 100644
index eb21848..0000000
--- a/3rdparty/libpng/libpng-1.6.37/projects/visualc71/zlib.vcproj
+++ /dev/null
@@ -1,391 +0,0 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
- ProjectType="Visual C++"
- Version="7.10"
- Name="zlib">
- <Platforms>
- <Platform
- Name="Win32"/>
- </Platforms>
- <Configurations>
- <Configuration
- Name="DLL Release|Win32"
- OutputDirectory=".\Win32_DLL_Release\ZLib"
- IntermediateDirectory=".\Win32_DLL_Release\ZLib"
- ConfigurationType="2">
- <Tool
- Name="VCCLCompilerTool"
- InlineFunctionExpansion="1"
- AdditionalIncludeDirectories="..\..\..\zlib"
- PreprocessorDefinitions="WIN32;NDEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS"
- StringPooling="TRUE"
- RuntimeLibrary="2"
- EnableFunctionLevelLinking="TRUE"
- WarningLevel="3"
- CompileAs="1"/>
- <Tool
- Name="VCCustomBuildTool"/>
- <Tool
- Name="VCLinkerTool"
- OutputFile="$(OutDir)\zlib1.dll"
- LinkIncremental="1"
- ModuleDefinitionFile="..\..\..\zlib\win32\zlib.def"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"/>
- <Tool
- Name="VCPreBuildEventTool"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"
- PreprocessorDefinitions="NDEBUG"
- Culture="1033"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- <Configuration
- Name="DLL Debug|Win32"
- OutputDirectory=".\Win32_DLL_Debug\ZLib"
- IntermediateDirectory=".\Win32_DLL_Debug\ZLib"
- ConfigurationType="2">
- <Tool
- Name="VCCLCompilerTool"
- Optimization="0"
- AdditionalIncludeDirectories="..\..\..\zlib"
- PreprocessorDefinitions="WIN32;_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS"
- BasicRuntimeChecks="3"
- RuntimeLibrary="3"
- WarningLevel="3"
- DebugInformationFormat="4"
- CompileAs="1"/>
- <Tool
- Name="VCCustomBuildTool"/>
- <Tool
- Name="VCLinkerTool"
- OutputFile="$(OutDir)\zlib1d.dll"
- ModuleDefinitionFile="..\..\..\zlib\win32\zlib.def"
- GenerateDebugInformation="TRUE"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"/>
- <Tool
- Name="VCPreBuildEventTool"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"
- PreprocessorDefinitions="_DEBUG"
- Culture="1033"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- <Configuration
- Name="LIB Release|Win32"
- OutputDirectory=".\Win32_LIB_Release\ZLib"
- IntermediateDirectory=".\Win32_LIB_Release\ZLib"
- ConfigurationType="4">
- <Tool
- Name="VCCLCompilerTool"
- InlineFunctionExpansion="1"
- AdditionalIncludeDirectories="..\..\..\zlib"
- PreprocessorDefinitions="WIN32;NDEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS"
- StringPooling="TRUE"
- RuntimeLibrary="0"
- EnableFunctionLevelLinking="TRUE"
- WarningLevel="3"
- CompileAs="1"/>
- <Tool
- Name="VCCustomBuildTool"/>
- <Tool
- Name="VCLibrarianTool"
- OutputFile="$(OutDir)\zlib.lib"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"/>
- <Tool
- Name="VCPreBuildEventTool"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- <Configuration
- Name="LIB Debug|Win32"
- OutputDirectory=".\Win32_LIB_Debug\ZLib"
- IntermediateDirectory=".\Win32_LIB_Debug\ZLib"
- ConfigurationType="4">
- <Tool
- Name="VCCLCompilerTool"
- Optimization="0"
- AdditionalIncludeDirectories="..\..\..\zlib"
- PreprocessorDefinitions="WIN32;_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS"
- BasicRuntimeChecks="3"
- RuntimeLibrary="1"
- WarningLevel="3"
- DebugInformationFormat="4"
- CompileAs="1"/>
- <Tool
- Name="VCCustomBuildTool"/>
- <Tool
- Name="VCLibrarianTool"
- OutputFile="$(OutDir)\zlibd.lib"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"/>
- <Tool
- Name="VCPreBuildEventTool"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- </Configurations>
- <References>
- </References>
- <Files>
- <Filter
- Name="Source Files"
- Filter="cpp;c;cxx;rc;def;r;odl;idl;hpj;bat">
- <File
- RelativePath="..\..\..\zlib\adler32.c">
- </File>
- <File
- RelativePath="..\..\..\zlib\compress.c">
- </File>
- <File
- RelativePath="..\..\..\zlib\crc32.c">
- </File>
- <File
- RelativePath="..\..\..\zlib\deflate.c">
- </File>
- <File
- RelativePath="..\..\..\zlib\gzlib.c">
- </File>
- <File
- RelativePath="..\..\..\zlib\gzclose.c">
- </File>
- <File
- RelativePath="..\..\..\zlib\gzread.c">
- </File>
- <File
- RelativePath="..\..\..\zlib\gzwrite.c">
- </File>
- <File
- RelativePath="..\..\..\zlib\infback.c">
- </File>
- <File
- RelativePath="..\..\..\zlib\inffast.c">
- </File>
- <File
- RelativePath="..\..\..\zlib\inflate.c">
- </File>
- <File
- RelativePath="..\..\..\zlib\inftrees.c">
- </File>
- <File
- RelativePath="..\..\..\zlib\trees.c">
- </File>
- <File
- RelativePath="..\..\..\zlib\uncompr.c">
- </File>
- <File
- RelativePath="..\..\..\zlib\win32\zlib.def">
- <FileConfiguration
- Name="LIB Release|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCCustomBuildTool"/>
- </FileConfiguration>
- <FileConfiguration
- Name="LIB Debug|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCCustomBuildTool"/>
- </FileConfiguration>
- </File>
- <File
- RelativePath="..\..\..\zlib\zutil.c">
- </File>
- </Filter>
- <Filter
- Name="Header Files"
- Filter="h;hpp;hxx;hm;inl">
- <File
- RelativePath="..\..\..\zlib\crc32.h">
- </File>
- <File
- RelativePath="..\..\..\zlib\deflate.h">
- </File>
- <File
- RelativePath="..\..\..\zlib\inffast.h">
- </File>
- <File
- RelativePath="..\..\..\zlib\inffixed.h">
- </File>
- <File
- RelativePath="..\..\..\zlib\inflate.h">
- </File>
- <File
- RelativePath="..\..\..\zlib\inftrees.h">
- </File>
- <File
- RelativePath="..\..\..\zlib\trees.h">
- </File>
- <File
- RelativePath="..\..\..\zlib\zconf.h">
- </File>
- <File
- RelativePath="..\..\..\zlib\zlib.h">
- </File>
- <File
- RelativePath="..\..\..\zlib\zutil.h">
- </File>
- </Filter>
- <Filter
- Name="Resource Files"
- Filter="ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe">
- <File
- RelativePath="..\..\..\zlib\win32\zlib1.rc">
- <FileConfiguration
- Name="LIB Release|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCResourceCompilerTool"/>
- </FileConfiguration>
- <FileConfiguration
- Name="LIB Debug|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCResourceCompilerTool"/>
- </FileConfiguration>
- </File>
- </Filter>
- <Filter
- Name="Assembler Files (Unsupported)"
- Filter="asm;obj;c;cpp;cxx;h;hpp;hxx">
- <File
- RelativePath="..\..\..\zlib\contrib\masmx86\gvmat32.asm">
- <FileConfiguration
- Name="DLL Release|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCCustomBuildTool"/>
- </FileConfiguration>
- <FileConfiguration
- Name="DLL Debug|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCCustomBuildTool"/>
- </FileConfiguration>
- <FileConfiguration
- Name="LIB Release|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCCustomBuildTool"/>
- </FileConfiguration>
- <FileConfiguration
- Name="LIB Debug|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCCustomBuildTool"/>
- </FileConfiguration>
- </File>
- <File
- RelativePath="..\..\..\zlib\contrib\masmx86\gvmat32c.c">
- <FileConfiguration
- Name="DLL Release|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCCLCompilerTool"/>
- </FileConfiguration>
- <FileConfiguration
- Name="DLL Debug|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCCLCompilerTool"/>
- </FileConfiguration>
- <FileConfiguration
- Name="LIB Release|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCCLCompilerTool"/>
- </FileConfiguration>
- <FileConfiguration
- Name="LIB Debug|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCCLCompilerTool"/>
- </FileConfiguration>
- </File>
- <File
- RelativePath="..\..\..\zlib\contrib\masmx86\inffas32.asm">
- <FileConfiguration
- Name="DLL Release|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCCustomBuildTool"/>
- </FileConfiguration>
- <FileConfiguration
- Name="DLL Debug|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCCustomBuildTool"/>
- </FileConfiguration>
- <FileConfiguration
- Name="LIB Release|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCCustomBuildTool"/>
- </FileConfiguration>
- <FileConfiguration
- Name="LIB Debug|Win32"
- ExcludedFromBuild="TRUE">
- <Tool
- Name="VCCustomBuildTool"/>
- </FileConfiguration>
- </File>
- </Filter>
- <File
- RelativePath="README.txt">
- </File>
- </Files>
- <Globals>
- </Globals>
-</VisualStudioProject>
diff --git a/3rdparty/libpng/libpng-1.6.37/projects/vstudio/README.txt b/3rdparty/libpng/libpng-1.6.37/projects/vstudio/README.txt
deleted file mode 100644
index e28ec95..0000000
--- a/3rdparty/libpng/libpng-1.6.37/projects/vstudio/README.txt
+++ /dev/null
@@ -1,87 +0,0 @@
-Instructions for building libpng using Microsoft Visual Studio
-==============================================================
-
-Copyright (c) 2018 Cosmin Truta
-Copyright (c) 2010,2013,2015 Glenn Randers-Pehrson
-
-This code is released under the libpng license.
-For conditions of distribution and use, see the disclaimer and license
-in png.h
-
-This directory contains a solution for building libpng under Microsoft
-Visual Studio 2010. It may also work under later versions of Visual
-Studio. You should be familiar with Visual Studio before using this
-solution.
-
-Initial preparations
---------------------
-You must enter some information in zlib.props before attempting to
-build with this 'solution'. Please read and edit zlib.props first.
-You will probably not be familiar with the contents of zlib.props -
-do not worry, it is mostly harmless.
-
-This is all you need to do to build the 'release' and 'release library'
-configurations.
-
-Debugging
----------
-The release configurations default to /Ox optimization. Full debugging
-information is produced (in the .pdb), but if you encounter a problem
-the optimization may make it difficult to debug. Simply rebuild with a
-lower optimization level (e.g. /Od.)
-
-Linking your application
-------------------------
-Normally you should link against the 'release' configuration. This
-builds a DLL for libpng with the default runtime options used by Visual
-Studio. In particular the runtime library is the "MultiThreaded DLL"
-version. If you use Visual Studio defaults to build your application,
-you should have no problems.
-
-If you don't use the Visual Studio defaults your application must still
-be built with the default runtime option (/MD). If, for some reason,
-it is not then your application will crash inside libpng16.dll as soon
-as libpng tries to read from a file handle you pass in.
-
-If you do not want to use the DLL, and prefer static linking instead,
-you may choose the 'release library' configuration. This is built with
-a non-standard runtime library - the "MultiThreaded" version. When you
-build your application, it must be compiled with this option (/MT),
-otherwise it will not build (if you are lucky) or it will crash (if you
-are not.) See the WARNING file that is distributed with this README.
-
-Stop reading here
------------------
-You have enough information to build a working application.
-
-Debug versions have limited support
------------------------------------
-This solution includes limited support for debug versions of libpng.
-You do not need these unless your own solution itself uses debug builds
-(it is far more effective to debug on the release builds, there is no
-point building a special debug build unless you have heap corruption
-problems that you can't track down.)
-
-The debug build of libpng is minimally supported. Support for debug
-builds of zlib is also minimal. Please keep this in mind, if you want
-to use it.
-
-WARNING
--------
-Libpng 1.6.x does not use the default run-time library when building
-static library builds of libpng; instead of the shared DLL runtime, it
-uses a static runtime. If you need to change this, make sure to change
-the setting on all the relevant projects:
-
- libpng
- zlib
- all the test programs
-
-The runtime library settings for each build are as follows:
-
- Release Debug
- DLL /MD /MDd
- Library /MT /MTd
-
-Also, be sure to build libpng, zlib, and your project, all for the same
-platform (e.g., 32-bit or 64-bit).
diff --git a/3rdparty/libpng/libpng-1.6.37/projects/vstudio/libpng/libpng.vcxproj b/3rdparty/libpng/libpng-1.6.37/projects/vstudio/libpng/libpng.vcxproj
deleted file mode 100644
index 9bfb718..0000000
--- a/3rdparty/libpng/libpng-1.6.37/projects/vstudio/libpng/libpng.vcxproj
+++ /dev/null
@@ -1,234 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
- <ItemGroup Label="ProjectConfigurations">
- <ProjectConfiguration Include="Debug Library|Win32">
- <Configuration>Debug Library</Configuration>
- <Platform>Win32</Platform>
- </ProjectConfiguration>
- <ProjectConfiguration Include="Debug|Win32">
- <Configuration>Debug</Configuration>
- <Platform>Win32</Platform>
- </ProjectConfiguration>
- <ProjectConfiguration Include="Release Library|Win32">
- <Configuration>Release Library</Configuration>
- <Platform>Win32</Platform>
- </ProjectConfiguration>
- <ProjectConfiguration Include="Release|Win32">
- <Configuration>Release</Configuration>
- <Platform>Win32</Platform>
- </ProjectConfiguration>
- </ItemGroup>
- <PropertyGroup Label="Globals">
- <ProjectGuid>{D6973076-9317-4EF2-A0B8-B7A18AC0713E}</ProjectGuid>
- <Keyword>Win32Proj</Keyword>
- <RootNamespace>libpng</RootNamespace>
- </PropertyGroup>
- <Import Project="$(SolutionDir)\zlib.props" />
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
- <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
- <ConfigurationType>DynamicLibrary</ConfigurationType>
- <CharacterSet>MultiByte</CharacterSet>
- <WholeProgramOptimization>true</WholeProgramOptimization>
- </PropertyGroup>
- <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'" Label="Configuration">
- <ConfigurationType>StaticLibrary</ConfigurationType>
- <CharacterSet>MultiByte</CharacterSet>
- </PropertyGroup>
- <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
- <ConfigurationType>DynamicLibrary</ConfigurationType>
- <WholeProgramOptimization>true</WholeProgramOptimization>
- <CharacterSet>MultiByte</CharacterSet>
- </PropertyGroup>
- <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'" Label="Configuration">
- <ConfigurationType>StaticLibrary</ConfigurationType>
- <CharacterSet>MultiByte</CharacterSet>
- </PropertyGroup>
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
- <ImportGroup Label="ExtensionSettings">
- </ImportGroup>
- <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
- <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
- </ImportGroup>
- <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'" Label="PropertySheets">
- <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" />
- </ImportGroup>
- <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
- <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
- </ImportGroup>
- <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'" Label="PropertySheets">
- <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" />
- </ImportGroup>
- <PropertyGroup Label="UserMacros" />
- <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
- <LinkIncremental>false</LinkIncremental>
- <CustomBuildBeforeTargets>
- </CustomBuildBeforeTargets>
- <TargetName>$(ProjectName)16</TargetName>
- </PropertyGroup>
- <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'">
- <LinkIncremental>false</LinkIncremental>
- <CustomBuildBeforeTargets />
- <TargetName>$(ProjectName)16</TargetName>
- </PropertyGroup>
- <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
- <LinkIncremental>false</LinkIncremental>
- <CustomBuildBeforeTargets>
- </CustomBuildBeforeTargets>
- <TargetName>$(ProjectName)16</TargetName>
- </PropertyGroup>
- <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'">
- <LinkIncremental>false</LinkIncremental>
- <CustomBuildBeforeTargets />
- <TargetName>$(ProjectName)16</TargetName>
- </PropertyGroup>
- <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
- <ClCompile>
- <PrecompiledHeader>Use</PrecompiledHeader>
- <WarningLevel>$(WarningLevel)</WarningLevel>
- <MinimalRebuild>false</MinimalRebuild>
- <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
- <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
- <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
- <IntrinsicFunctions>true</IntrinsicFunctions>
- <FunctionLevelLinking>true</FunctionLevelLinking>
- <FloatingPointExceptions>false</FloatingPointExceptions>
- <TreatWChar_tAsBuiltInType>false</TreatWChar_tAsBuiltInType>
- <PrecompiledHeaderFile>pngpriv.h</PrecompiledHeaderFile>
- <BrowseInformation>true</BrowseInformation>
- <CompileAs>CompileAsC</CompileAs>
- <StringPooling>true</StringPooling>
- <DisableSpecificWarnings>$(DisableSpecificWarnings)</DisableSpecificWarnings>
- <AdditionalIncludeDirectories>$(ZLibSrcDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
- <TreatWarningAsError>$(TreatWarningAsError)</TreatWarningAsError>
- <Optimization>Disabled</Optimization>
- <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
- </ClCompile>
- <Link>
- <SubSystem>Windows</SubSystem>
- <GenerateDebugInformation>true</GenerateDebugInformation>
- <AdditionalDependencies>zlib.lib</AdditionalDependencies>
- <Version>16</Version>
- <AdditionalLibraryDirectories>$(OutDir)</AdditionalLibraryDirectories>
- </Link>
- </ItemDefinitionGroup>
- <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'">
- <ClCompile>
- <PrecompiledHeader>Use</PrecompiledHeader>
- <WarningLevel>$(WarningLevel)</WarningLevel>
- <MinimalRebuild>false</MinimalRebuild>
- <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
- <Optimization>Disabled</Optimization>
- <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
- <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
- <IntrinsicFunctions>true</IntrinsicFunctions>
- <FunctionLevelLinking>true</FunctionLevelLinking>
- <FloatingPointExceptions>false</FloatingPointExceptions>
- <TreatWChar_tAsBuiltInType>false</TreatWChar_tAsBuiltInType>
- <PrecompiledHeaderFile>pngpriv.h</PrecompiledHeaderFile>
- <BrowseInformation>true</BrowseInformation>
- <CompileAs>CompileAsC</CompileAs>
- <StringPooling>true</StringPooling>
- <DisableSpecificWarnings>$(DisableSpecificWarnings)</DisableSpecificWarnings>
- <AdditionalIncludeDirectories>$(ZLibSrcDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
- <TreatWarningAsError>$(TreatWarningAsError)</TreatWarningAsError>
- <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
- </ClCompile>
- <Link>
- <SubSystem>Windows</SubSystem>
- <GenerateDebugInformation>true</GenerateDebugInformation>
- </Link>
- </ItemDefinitionGroup>
- <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
- <ClCompile>
- <WarningLevel>$(WarningLevel)</WarningLevel>
- <PrecompiledHeader>Use</PrecompiledHeader>
- <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
- <FunctionLevelLinking>true</FunctionLevelLinking>
- <IntrinsicFunctions>true</IntrinsicFunctions>
- <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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index af0b1ba..0000000
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diff --git a/3rdparty/libpng/libpng-1.6.37/projects/vstudio/zlib.props b/3rdparty/libpng/libpng-1.6.37/projects/vstudio/zlib.props
deleted file mode 100644
index 8786279..0000000
--- a/3rdparty/libpng/libpng-1.6.37/projects/vstudio/zlib.props
+++ /dev/null
@@ -1,57 +0,0 @@
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- * Copyright (c) 2018 Cosmin Truta
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
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- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
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deleted file mode 100644
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@@ -1,175 +0,0 @@
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- <LinkIncremental>true</LinkIncremental>
- </PropertyGroup>
- <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
- <LinkIncremental>true</LinkIncremental>
- </PropertyGroup>
- <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
- <LinkIncremental>true</LinkIncremental>
- </PropertyGroup>
- <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'">
- <ClCompile>
- <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;Z_SOLO;%(PreprocessorDefinitions)</PreprocessorDefinitions>
- <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
- <WarningLevel>$(WarningLevel)</WarningLevel>
- <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
- <Optimization>Disabled</Optimization>
- <BrowseInformation>true</BrowseInformation>
- <FunctionLevelLinking>true</FunctionLevelLinking>
- <DisableSpecificWarnings>$(DisableSpecificWarnings);4127;4131;4242;4244</DisableSpecificWarnings>
- <TreatWarningAsError>$(TreatWarningAsError)</TreatWarningAsError>
- </ClCompile>
- <Link>
- <TargetMachine>MachineX86</TargetMachine>
- <GenerateDebugInformation>true</GenerateDebugInformation>
- <SubSystem>Windows</SubSystem>
- </Link>
- </ItemDefinitionGroup>
- <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
- <ClCompile>
- <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;Z_SOLO;%(PreprocessorDefinitions)</PreprocessorDefinitions>
- <WarningLevel>$(WarningLevel)</WarningLevel>
- <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
- <Optimization>Disabled</Optimization>
- <BrowseInformation>true</BrowseInformation>
- <FunctionLevelLinking>true</FunctionLevelLinking>
- <DisableSpecificWarnings>$(DisableSpecificWarnings);4127;4131;4242;4244</DisableSpecificWarnings>
- <TreatWarningAsError>$(TreatWarningAsError)</TreatWarningAsError>
- <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
- </ClCompile>
- <Link>
- <TargetMachine>MachineX86</TargetMachine>
- <GenerateDebugInformation>true</GenerateDebugInformation>
- <SubSystem>Windows</SubSystem>
- </Link>
- </ItemDefinitionGroup>
- <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'">
- <ClCompile>
- <WarningLevel>$(WarningLevel)</WarningLevel>
- <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
- <Optimization>Full</Optimization>
- <IntrinsicFunctions>true</IntrinsicFunctions>
- <WholeProgramOptimization>true</WholeProgramOptimization>
- <BufferSecurityCheck>false</BufferSecurityCheck>
- <BrowseInformation>true</BrowseInformation>
- <FunctionLevelLinking>true</FunctionLevelLinking>
- <DisableSpecificWarnings>$(DisableSpecificWarnings);4127;4131;4242;4244</DisableSpecificWarnings>
- <TreatWarningAsError>$(TreatWarningAsError)</TreatWarningAsError>
- <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
- <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;Z_SOLO;%(PreprocessorDefinitions)</PreprocessorDefinitions>
- </ClCompile>
- <Link>
- <TargetMachine>MachineX86</TargetMachine>
- <GenerateDebugInformation>true</GenerateDebugInformation>
- <SubSystem>Windows</SubSystem>
- </Link>
- <Lib>
- <LinkTimeCodeGeneration>true</LinkTimeCodeGeneration>
- </Lib>
- </ItemDefinitionGroup>
- <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
- <ClCompile>
- <WarningLevel>$(WarningLevel)</WarningLevel>
- <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
- <Optimization>Full</Optimization>
- <IntrinsicFunctions>true</IntrinsicFunctions>
- <WholeProgramOptimization>true</WholeProgramOptimization>
- <BufferSecurityCheck>false</BufferSecurityCheck>
- <BrowseInformation>true</BrowseInformation>
- <FunctionLevelLinking>true</FunctionLevelLinking>
- <DisableSpecificWarnings>$(DisableSpecificWarnings);4127;4131;4242;4244</DisableSpecificWarnings>
- <TreatWarningAsError>$(TreatWarningAsError)</TreatWarningAsError>
- <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;Z_SOLO;%(PreprocessorDefinitions)</PreprocessorDefinitions>
- </ClCompile>
- <Link>
- <TargetMachine>MachineX86</TargetMachine>
- <GenerateDebugInformation>true</GenerateDebugInformation>
- <SubSystem>Windows</SubSystem>
- <EnableCOMDATFolding>true</EnableCOMDATFolding>
- <OptimizeReferences>true</OptimizeReferences>
- </Link>
- <Lib>
- <LinkTimeCodeGeneration>true</LinkTimeCodeGeneration>
- </Lib>
- </ItemDefinitionGroup>
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
- <ImportGroup Label="ExtensionTargets">
- </ImportGroup>
-</Project>
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/README.txt b/3rdparty/libpng/libpng-1.6.37/scripts/README.txt
deleted file mode 100644
index 3d911ef..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/README.txt
+++ /dev/null
@@ -1,79 +0,0 @@
-
-Makefiles for libpng
-
-pnglibconf.h.prebuilt => Configuration settings
- makefile.linux => Linux/ELF makefile
- (gcc, creates shared libpng16.so.16.1.6.*)
- makefile.linux-opt=> Linux/ELF makefile with hardware optimizations on
- (gcc, creates shared libpng16.so.16.1.6.*)
- makefile.gcc => Generic makefile (gcc, creates static libpng.a)
- makefile.acorn => Acorn makefile
- makefile.aix => AIX/gcc makefile
- makefile.amiga => Amiga makefile
- makefile.atari => Atari makefile
- makefile.bc32 => 32-bit Borland C++ (all modules compiled in C mode)
- makefile.beos => BeOS makefile
- makefile.cegcc => minge32ce for Windows CE makefile
- makefile.darwin => Darwin makefile, for macOS (formerly Mac OS X)
- makefile.dec => DEC Alpha UNIX makefile
- makefile.dj2 => DJGPP 2 makefile
- makefile.freebsd => FreeBSD makefile
- makefile.gcc => Generic gcc makefile
- makefile.hpgcc => HPUX makefile using gcc
- makefile.hpux => HPUX (10.20 and 11.00) makefile
- makefile.hp64 => HPUX (10.20 and 11.00) makefile, 64-bit
- makefile.ibmc => IBM C/C++ version 3.x for Win32 and OS/2 (static)
- makefile.intel => Intel C/C++ version 4.0 and later
- makefile.mips => MIPS makefile
- makefile.netbsd => NetBSD/cc makefile, makes shared libpng.so
- makefile.openbsd => OpenBSD makefile
- makefile.sco => SCO OSr5 ELF and Unixware 7 with Native cc
- makefile.sggcc => Silicon Graphics makefile
- (gcc, creates shared libpng16.so.16.1.6.*)
- makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
- makefile.solaris => Solaris 2.X makefile
- (gcc, creates shared libpng16.so.16.1.6.*)
- makefile.so9 => Solaris 9 makefile
- (gcc, creates shared libpng16.so.16.1.6.*)
- makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
- makefile.sunos => Sun makefile
- makefile.32sunu => Sun Ultra 32-bit makefile
- makefile.64sunu => Sun Ultra 64-bit makefile
- makefile.vcwin32 => makefile for Microsoft Visual C++ 4.0 and later
- makevms.com => VMS build script
- smakefile.ppc => AMIGA smakefile for SAS C V6.58/7.00 PPC compiler
- (Requires SCOPTIONS, copied from scripts/SCOPTIONS.ppc)
-
-Other supporting scripts:
- README.txt => This file
- descrip.mms => VMS makefile for MMS or MMK
- libpng-config-body.in => used by several makefiles to create libpng-config
- libpng-config-head.in => used by several makefiles to create libpng-config
- libpng.pc.in => Used by several makefiles to create libpng.pc
- pngwin.rc => Used by the visualc71 project
- pngwin.def => Used by makefile.os2
- pngwin.dfn => Used to maintain pngwin.def
- SCOPTIONS.ppc => Used with smakefile.ppc
-
- checksym.awk => Used for maintaining pnglibconf.h
- def.dfn => Used for maintaining pnglibconf.h
- options.awk => Used for maintaining pnglibconf.h
- pnglibconf.dfa => Used for maintaining pnglibconf.h
- pnglibconf.mak => Used for maintaining pnglibconf.h
- sym.dfn => Used for symbol versioning
- symbols.def => Used for symbol versioning
- symbols.dfn => Used for symbol versioning
- vers.dfn => Used for symbol versioning
-
- libtool.m4 => Used by autoconf tools
- ltoptions.m4 => Used by autoconf tools
- ltsugar.m4 => Used by autoconf tools
- ltversion.m4 => Used by autoconf tools
- lt~obsolete.m4 => Used by autoconf tools
-
- intprefix.dfn => Used by autoconf tools
- macro.lst => Used by autoconf tools
- prefix.dfn => Used by autoconf tools
-
-
-Further information can be found in comments in the individual makefiles.
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/SCOPTIONS.ppc b/3rdparty/libpng/libpng-1.6.37/scripts/SCOPTIONS.ppc
deleted file mode 100644
index 2c3503e..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/SCOPTIONS.ppc
+++ /dev/null
@@ -1,7 +0,0 @@
-OPTIMIZE
-OPTPEEP
-OPTTIME
-OPTSCHED
-AUTOREGISTER
-PARMS=REGISTERS
-INCLUDEDIR=hlp:ppc/include
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/checksym.awk b/3rdparty/libpng/libpng-1.6.37/scripts/checksym.awk
deleted file mode 100755
index fe3af55..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/checksym.awk
+++ /dev/null
@@ -1,173 +0,0 @@
-#!/bin/awk -f
-# Check a list of symbols against the master definition
-# (official) list. Arguments:
-#
-# awk -f checksym.awk official-def list-to-check
-#
-# Output is a file in the current directory called 'symbols.new',
-# the value of the awk variable "of" (which can be changed on the
-# command line if required.) stdout holds error messages. Error
-# code indicates success or failure.
-#
-# NOTE: this is a pure, old fashioned, awk script. It will
-# work with any awk
-
-BEGIN{
- err=0
- master="" # master file
- official[1] = "" # defined symbols from master file
- symbol[1] = "" # defined symbols from png.h
- removed[1] = "" # removed symbols from png.h
- lasto = 0 # last ordinal value from png.h
- mastero = 0 # highest ordinal in master file
- symbolo = 0 # highest ordinal in png.h
- missing = "error"# log an error on missing symbols
- of="symbols.new" # default to a fixed name
-}
-
-# Read existing definitions from the master file (the first
-# file on the command line.) This must be a def file and it
-# has definition lines (others are ignored) of the form:
-#
-# symbol @ordinal
-#
-master == "" {
- master = FILENAME
-}
-FILENAME==master && NF==2 && $2~/^@/ && $1!~/^;/ {
- o=0+substr($2,2)
- if (o > 0) {
- if (official[o] == "") {
- official[o] = $1
- if (o > mastero) mastero = o
- next
- } else
- print master ": duplicated symbol:", official[o] ":", $0
- } else
- print master ": bad export line format:", $0
- err = 1
-}
-FILENAME==master && $1==";missing" && NF==2{
- # This allows the master file to control how missing symbols
- # are handled; symbols that aren't in either the master or
- # the new file. Valid values are 'ignore', 'warning' and
- # 'error'
- missing = $2
-}
-FILENAME==master {
- next
-}
-
-# Read new definitions, these are free form but the lines must
-# just be symbol definitions. Lines will be commented out for
-# 'removed' symbols, introduced in png.h using PNG_REMOVED rather
-# than PNG_EXPORT. Use symbols.dfn or pngwin.dfn to generate the
-# input file.
-#
-# symbol @ordinal # two fields, exported symbol
-# ; symbol @ordinal # three fields, removed symbol
-# ; @ordinal # two fields, the last ordinal
-NF==2 && $1 == ";" && $2 ~ /^@[1-9][0-9]*$/ { # last ordinal
- o=0+substr($2,2)
- if (lasto == 0 || lasto == o)
- lasto=o
- else {
- print "png.h: duplicated last ordinal:", lasto, o
- err = 1
- }
- next
-}
-NF==3 && $1 == ";" && $3 ~ /^@[1-9][0-9]*$/ { # removed symbol
- o=0+substr($3,2)
- if (removed[o] == "" || removed[o] == $2) {
- removed[o] = $2
- if (o > symbolo) symbolo = o
- } else {
- print "png.h: duplicated removed symbol", o ": '" removed[o] "' != '" $2 "'"
- err = 1
- }
- next
-}
-NF==2 && $2 ~ /^@[1-9][0-9]*$/ { # exported symbol
- o=0+substr($2,2)
- if (symbol[o] == "" || symbol[o] == $1) {
- symbol[o] = $1
- if (o > symbolo) symbolo = o
- } else {
- print "png.h: duplicated symbol", o ": '" symbol[o] "' != '" $1 "'"
- err = 1
- }
-}
-{
- next # skip all other lines
-}
-
-# At the end check for symbols marked as both duplicated and removed
-END{
- if (symbolo > lasto) {
- print "highest symbol ordinal in png.h,", symbolo ", exceeds last ordinal from png.h", lasto
- err = 1
- }
- if (mastero > lasto) {
- print "highest symbol ordinal in", master ",", mastero ", exceeds last ordinal from png.h", lasto
- err = 1
- }
- unexported=0
- # Add a standard header to symbols.new:
- print ";Version INSERT-VERSION-HERE" >of
- print ";--------------------------------------------------------------" >of
- print "; LIBPNG symbol list as a Win32 DEF file" >of
- print "; Contains all the symbols that can be exported from libpng" >of
- print ";--------------------------------------------------------------" >of
- print "LIBRARY" >of
- print "" >of
- print "EXPORTS" >of
-
- for (o=1; o<=lasto; ++o) {
- if (symbol[o] == "" && removed[o] == "") {
- if (unexported == 0) unexported = o
- if (official[o] == "") {
- # missing in export list too, so ok
- if (o < lasto) continue
- }
- }
- if (unexported != 0) {
- # Symbols in the .def but not in the new file are errors, but
- # the 'unexported' symbols aren't in either. By default this
- # is an error too (see the setting of 'missing' at the start),
- # but this can be reset on the command line or by stuff in the
- # file - see the comments above.
- if (missing != "ignore") {
- if (o-1 > unexported)
- print "png.h:", missing ": missing symbols:", unexported "-" o-1
- else
- print "png.h:", missing ": missing symbol:", unexported
- if (missing != "warning")
- err = 1
- }
- unexported = 0
- }
- if (symbol[o] != "" && removed[o] != "") {
- print "png.h: symbol", o, "both exported as '" symbol[o] "' and removed as '" removed[o] "'"
- err = 1
- } else if (symbol[o] != official[o]) {
- # either the symbol is missing somewhere or it changed
- err = 1
- if (symbol[o] == "")
- print "png.h: symbol", o, "is exported as '" official[o] "' in", master
- else if (official[o] == "")
- print "png.h: exported symbol", o, "'" symbol[o] "' not present in", master
- else
- print "png.h: exported symbol", o, "'" symbol[o] "' exists as '" official[o] "' in", master
- }
-
- # Finally generate symbols.new
- if (symbol[o] != "")
- print " " symbol[o], "@" o > of
- }
-
- if (err != 0) {
- print "*** A new list is in", of, "***"
- exit 1
- }
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/descrip.mms b/3rdparty/libpng/libpng-1.6.37/scripts/descrip.mms
deleted file mode 100644
index a3aefbf..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/descrip.mms
+++ /dev/null
@@ -1,52 +0,0 @@
-
-cc_defs = /inc=$(ZLIBSRC)
-c_deb =
-
-.ifdef __DECC__
-pref = /prefix=all
-.endif
-
-
-
-OBJS = png.obj, pngset.obj, pngget.obj, pngrutil.obj, pngtrans.obj,\
- pngwutil.obj, pngread.obj, pngmem.obj, pngwrite.obj, pngrtran.obj,\
- pngwtran.obj, pngrio.obj, pngwio.obj, pngerror.obj, pngpread.obj
-
-
-CFLAGS= $(C_DEB) $(CC_DEFS) $(PREF)
-
-all : pngtest.exe libpng.olb
- @ write sys$output " pngtest available"
-
-libpng.olb : libpng.olb($(OBJS))
- @ write sys$output " libpng available"
-
-
-pngtest.exe : pngtest.obj libpng.olb
- link pngtest,libpng.olb/lib,$(ZLIBSRC)libz.olb/lib
-
-test : pngtest.exe
- run pngtest
-
-clean :
- delete *.obj;*,*.exe;
-
-
-# Other dependencies.
-png.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-pngpread.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-pngset.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-pngget.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-pngread.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-pngrtran.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-pngrutil.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-pngerror.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-pngmem.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-pngrio.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-pngwio.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-pngtrans.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-pngwrite.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-pngwtran.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-pngwutil.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-
-pngtest.obj : png.h, pngconf.h, pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/dfn.awk b/3rdparty/libpng/libpng-1.6.37/scripts/dfn.awk
deleted file mode 100755
index 346b9db..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/dfn.awk
+++ /dev/null
@@ -1,203 +0,0 @@
-#!/bin/awk -f
-# scripts/dfn.awk - process a .dfn file
-#
-# last changed in libpng version 1.5.19 - August 21, 2014
-#
-# Copyright (c) 2013-2014 Glenn Randers-Pehrson
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# The output of this script is written to the file given by
-# the variable 'out', which should be set on the command line.
-# Error messages are printed to stdout and if any are printed
-# the script will exit with error code 1.
-
-BEGIN{
- out="/dev/null" # as a flag
- out_count=0 # count of output lines
- err=0 # set if an error occurred
- sort=0 # sort the output
- array[""]=""
-}
-
-# The output file must be specified before any input:
-NR==1 && out == "/dev/null" {
- print "out=output.file must be given on the command line"
- # but continue without setting the error code; this allows the
- # script to be checked easily
-}
-
-# Output can be sorted; two lines are recognized
-$1 == "PNG_DFN_START_SORT"{
- sort=0+$2
- next
-}
-
-$1 ~ /^PNG_DFN_END_SORT/{
- # Do a very simple, slow, sort; notice that blank lines won't be
- # output by this
- for (entry in array) {
- while (array[entry] != "") {
- key = entry
- value = array[key]
- array[key] = ""
-
- for (alt in array) {
- if (array[alt] != "" && alt < key) {
- array[key] = value
- value = array[alt]
- key = alt
- array[alt] = ""
- }
- }
-
- print value >out
- }
- }
- sort=0
- next
-}
-
-/^[^"]*PNG_DFN *".*"[^"]*$/{
- # A definition line, apparently correctly formatted; extract the
- # definition then replace any doubled "" that remain with a single
- # double quote. Notice that the original doubled double quotes
- # may have been split by tokenization
- #
- # Sometimes GCC splits the PNG_DFN lines; we know this has happened
- # if the quotes aren't closed and must read another line. In this
- # case it is essential to reject lines that start with '#' because those
- # are introduced #line directives.
- orig=$0
- line=$0
- lineno=FNR
- if (lineno == "") lineno=NR
-
- if (sub(/^[^"]*PNG_DFN *"/,"",line) != 1) {
- print "line", lineno ": processing failed:"
- print orig
- err=1
- next
- } else {
- ++out_count
- }
-
- # Now examine quotes within the value:
- #
- # @" - delete this and any following spaces
- # "@ - delete this and any preceding spaces
- # @' - replace this by a double quote
- #
- # This allows macro substitution by the C compiler thus:
- #
- # #define first_name John
- # #define last_name Smith
- #
- # PNG_DFN"#define name @'@" first_name "@ @" last_name "@@'"
- #
- # Might get C preprocessed to:
- #
- # PNG_DFN "#define foo @'@" John "@ @" Smith "@@'"
- #
- # Which this script reduces to:
- #
- # #define name "John Smith"
- #
- while (1) {
- # While there is an @" remove it and the next "@
- if (line ~ /@"/) {
- if (line ~ /@".*"@/) {
- # Do this special case first to avoid swallowing extra spaces
- # before or after the @ stuff:
- if (!sub(/@" *"@/, "", line)) {
- # Ok, do it in pieces - there has to be a non-space between the
- # two. NOTE: really weird things happen if a leading @" is
- # lost - the code will error out below (I believe).
- if (!sub(/@" */, "", line) || !sub(/ *"@/, "", line)) {
- print "line", lineno, ": internal error:", orig
- exit 1
- }
- }
- }
-
- # There is no matching "@. Assume a split line
- else while (1) {
- if (getline nextline) {
- # If the line starts with '#' it is a preprocesor line directive
- # from cc -E; skip it:
- if (nextline !~ /^#/) {
- line = line " " nextline
- break
- }
- } else {
- # This is end-of-input - probably a missing "@ on the first line:
- print "line", lineno ": unbalanced @\" ... \"@ pair"
- err=1
- next
- }
- }
-
- # Keep going until all the @" have gone
- continue
- }
-
- # Attempt to remove a trailing " (not preceded by '@') - if this can
- # be done, stop now; if not assume a split line again
- if (sub(/"[^"]*$/, "", line))
- break
-
- # Read another line
- while (1) {
- if (getline nextline) {
- if (nextline !~ /^#/) {
- line = line " " nextline
- # Go back to stripping @" "@ pairs
- break
- }
- } else {
- print "line", lineno ": unterminated PNG_DFN string"
- err=1
- next
- }
- }
- }
-
- # Put any needed double quotes in (at the end, because these would otherwise
- # interfere with the processing above.)
- gsub(/@'/,"\"", line)
-
- # Remove any trailing spaces (not really required, but for
- # editorial consistency
- sub(/ *$/, "", line)
-
- # Remove trailing CR
- sub(/
$/, "", line)
-
- if (sort) {
- if (split(line, parts) < sort) {
- print "line", lineno ": missing sort field:", line
- err=1
- } else
- array[parts[sort]] = line
- }
-
- else
- print line >out
- next
-}
-
-/PNG_DFN/{
- print "line", NR, "incorrectly formatted PNG_DFN line:"
- print $0
- err = 1
-}
-
-END{
- if (out_count > 0 || err > 0)
- exit err
-
- print "no definition lines found"
- exit 1
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/genchk.cmake.in b/3rdparty/libpng/libpng-1.6.37/scripts/genchk.cmake.in
deleted file mode 100644
index ab3b9d7..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/genchk.cmake.in
+++ /dev/null
@@ -1,37 +0,0 @@
-# genchk.cmake.in
-# Generate .chk from .out with awk (generic), based upon the automake logic.
-
-# Copyright (C) 2016 Glenn Randers-Pehrson
-# Written by Roger Leigh, 2016
-
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Variables substituted from CMakeLists.txt
-set(SRCDIR "@CMAKE_CURRENT_SOURCE_DIR@")
-
-set(AWK "@AWK@")
-
-get_filename_component(INPUTEXT "${INPUT}" EXT)
-get_filename_component(OUTPUTEXT "${OUTPUT}" EXT)
-get_filename_component(INPUTBASE "${INPUT}" NAME_WE)
-get_filename_component(OUTPUTBASE "${OUTPUT}" NAME_WE)
-get_filename_component(INPUTDIR "${INPUT}" PATH)
-get_filename_component(OUTPUTDIR "${OUTPUT}" PATH)
-
-if("${INPUTEXT}" STREQUAL ".out" AND "${OUTPUTEXT}" STREQUAL ".chk")
- # Generate .chk from .out with awk (generic)
- file(REMOVE "${OUTPUT}" "${OUTPUTDIR}/${OUTPUTBASE}.new")
- execute_process(COMMAND "${AWK}" -f "${SRCDIR}/scripts/checksym.awk"
- "${SRCDIR}/scripts/${INPUTBASE}.def"
- "of=${OUTPUTDIR}/${OUTPUTBASE}.new"
- "${INPUT}"
- RESULT_VARIABLE AWK_FAIL)
- if(AWK_FAIL)
- message(FATAL_ERROR "Failed to generate ${OUTPUTDIR}/${OUTPUTBASE}.new")
- endif()
- file(RENAME "${OUTPUTDIR}/${OUTPUTBASE}.new" "${OUTPUT}")
-else()
- message(FATAL_ERROR "Unsupported conversion: ${INPUTEXT} to ${OUTPUTEXT}")
-endif()
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/genout.cmake.in b/3rdparty/libpng/libpng-1.6.37/scripts/genout.cmake.in
deleted file mode 100644
index 01f12de..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/genout.cmake.in
+++ /dev/null
@@ -1,93 +0,0 @@
-# genout.cmake.in
-# Generate .out from .c with awk (generic), based upon the automake logic.
-
-# Copyright (C) 2016 Glenn Randers-Pehrson
-# Written by Roger Leigh, 2016
-
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Variables substituted from CMakeLists.txt
-set(SRCDIR "@CMAKE_CURRENT_SOURCE_DIR@")
-set(BINDIR "@CMAKE_CURRENT_BINARY_DIR@")
-
-set(AWK "@AWK@")
-set(CMAKE_C_COMPILER "@CMAKE_C_COMPILER@")
-set(CMAKE_C_FLAGS @CMAKE_C_FLAGS@)
-set(INCDIR "@CMAKE_CURRENT_BINARY_DIR@")
-set(PNG_PREFIX "@PNG_PREFIX@")
-set(PNGLIB_MAJOR "@PNGLIB_MAJOR@")
-set(PNGLIB_MINOR "@PNGLIB_MINOR@")
-set(PNGLIB_VERSION "@PNGLIB_VERSION@")
-set(ZLIBINCDIR "@ZLIB_INCLUDE_DIR@")
-
-set(PLATFORM_C_FLAGS)
-if(APPLE)
- set(CMAKE_OSX_ARCHITECTURES "@CMAKE_OSX_ARCHITECTURES@")
- set(CMAKE_OSX_SYSROOT "@CMAKE_OSX_SYSROOT@")
- if(CMAKE_OSX_ARCHITECTURES)
- set(PLATFORM_C_FLAGS ${PLATFORM_C_FLAGS} -arch ${CMAKE_OSX_ARCHITECTURES})
- endif()
- if(CMAKE_OSX_SYSROOT)
- set(PLATFORM_C_FLAGS ${PLATFORM_C_FLAGS} -isysroot ${CMAKE_OSX_SYSROOT})
- endif()
-endif()
-
-get_filename_component(INPUTEXT "${INPUT}" EXT)
-get_filename_component(OUTPUTEXT "${OUTPUT}" EXT)
-get_filename_component(INPUTBASE "${INPUT}" NAME_WE)
-get_filename_component(OUTPUTBASE "${OUTPUT}" NAME_WE)
-get_filename_component(INPUTDIR "${INPUT}" PATH)
-get_filename_component(OUTPUTDIR "${OUTPUT}" PATH)
-
-if ("${INPUTEXT}" STREQUAL ".c" AND "${OUTPUTEXT}" STREQUAL ".out")
- get_filename_component(GENDIR "${OUTPUT}" PATH)
- file(MAKE_DIRECTORY "${GENDIR}")
-
- file(REMOVE "${OUTPUT}.tf1" "${OUTPUT}.tf2")
-
- set(INCLUDES "-I${INCDIR}")
- if(ZLIBINCDIR)
- foreach(dir ${ZLIBINCDIR})
- list(APPEND INCLUDES "-I${dir}")
- endforeach()
- endif()
-
- if(PNG_PREFIX)
- set(PNG_PREFIX_DEF "-DPNG_PREFIX=${PNG_PREFIX}")
- endif()
-
- execute_process(COMMAND "${CMAKE_C_COMPILER}" "-E"
- ${CMAKE_C_FLAGS}
- ${PLATFORM_C_FLAGS}
- "-I${SRCDIR}"
- "-I${BINDIR}"
- ${INCLUDES}
- "-DPNGLIB_LIBNAME=PNG${PNGLIB_MAJOR}${PNGLIB_MINOR}_0"
- "-DPNGLIB_VERSION=${PNGLIB_VERSION}"
- "-DSYMBOL_PREFIX=${SYMBOL_PREFIX}"
- "-DPNG_NO_USE_READ_MACROS"
- "-DPNG_BUILDING_SYMBOL_TABLE"
- ${PNG_PREFIX_DEF}
- "${INPUT}"
- OUTPUT_FILE "${OUTPUT}.tf1"
- WORKING_DIRECTORY "${BINDIR}"
- RESULT_VARIABLE CPP_FAIL)
- if(CPP_FAIL)
- message(FATAL_ERROR "Failed to generate ${OUTPUT}.tf1")
- endif()
-
- execute_process(COMMAND "${AWK}" -f "${SRCDIR}/scripts/dfn.awk"
- "out=${OUTPUT}.tf2" "${OUTPUT}.tf1"
- WORKING_DIRECTORY "${BINDIR}"
- RESULT_VARIABLE AWK_FAIL)
- if(AWK_FAIL)
- message(FATAL_ERROR "Failed to generate ${OUTPUT}.tf2")
- endif()
-
- file(REMOVE "${OUTPUT}.tf1")
- file(RENAME "${OUTPUT}.tf2" "${OUTPUT}")
-else()
- message(FATAL_ERROR "Unsupported conversion: ${INPUTEXT} to ${OUTPUTEXT}")
-endif()
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/gensrc.cmake.in b/3rdparty/libpng/libpng-1.6.37/scripts/gensrc.cmake.in
deleted file mode 100644
index f28a622..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/gensrc.cmake.in
+++ /dev/null
@@ -1,138 +0,0 @@
-# gensrc.cmake.in
-# Generate source files with awk, based upon the automake logic.
-
-# Copyright (C) 2016 Glenn Randers-Pehrson
-# Written by Roger Leigh, 2016
-
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Variables substituted from CMakeLists.txt
-set(SRCDIR "@CMAKE_CURRENT_SOURCE_DIR@")
-set(BINDIR "@CMAKE_CURRENT_BINARY_DIR@")
-
-set(AWK "@AWK@")
-set(DFA_XTRA "@DFA_XTRA@")
-set(PNG_PREFIX "@PNG_PREFIX@")
-set(PNGLIB_VERSION "@PNGLIB_VERSION@")
-
-if("${OUTPUT}" STREQUAL "scripts/pnglibconf.c")
- # Generate scripts/pnglibconf.c
-
- file(REMOVE "${BINDIR}/pnglibconf.tf6" "${BINDIR}/pnglibconf.tf7")
-
- execute_process(COMMAND "${CMAKE_COMMAND}" -E echo "com ${PNGLIB_VERSION} STANDARD API DEFINITION"
- COMMAND "${AWK}" -f "${SRCDIR}/scripts/options.awk"
- "out=pnglibconf.tf6" "logunsupported=1" "version=search"
- "${SRCDIR}/pngconf.h" "-"
- "${SRCDIR}/scripts/pnglibconf.dfa"
- WORKING_DIRECTORY "${BINDIR}"
- RESULT_VARIABLE AWK_FAIL)
- if(AWK_FAIL)
- message(FATAL_ERROR "Failed to generate pnglibconf.tf6")
- endif()
-
- execute_process(COMMAND "${AWK}" -f "${SRCDIR}/scripts/options.awk"
- "out=pnglibconf.tf7" "pnglibconf.tf6"
- WORKING_DIRECTORY "${BINDIR}"
- RESULT_VARIABLE AWK_FAIL)
- if(AWK_FAIL)
- message(FATAL_ERROR "Failed to generate pnglibconf.tf7")
- endif()
-
- file(REMOVE "pnglibconf.tf6")
- file(MAKE_DIRECTORY "${BINDIR}/scripts")
- file(RENAME "pnglibconf.tf7" "${BINDIR}/scripts/pnglibconf.c")
-
-elseif ("${OUTPUT}" STREQUAL "pnglibconf.c")
- # Generate pnglibconf.c
-
- file(REMOVE "${BINDIR}/pnglibconf.tf4" "${BINDIR}/pnglibconf.tf5")
-
- execute_process(COMMAND "${AWK}" -f "${SRCDIR}/scripts/options.awk"
- out=pnglibconf.tf4 version=search
- ${SRCDIR}/pngconf.h ${SRCDIR}/scripts/pnglibconf.dfa
- ${SRCDIR}/pngusr.dfa ${DFA_XTRA}
- WORKING_DIRECTORY "${BINDIR}"
- RESULT_VARIABLE AWK_FAIL)
- if(AWK_FAIL)
- message(FATAL_ERROR "Failed to generate pnglibconf.tf4")
- endif()
-
- execute_process(COMMAND "${AWK}" -f "${SRCDIR}/scripts/options.awk"
- out=pnglibconf.tf5 pnglibconf.tf4
- WORKING_DIRECTORY "${BINDIR}"
- RESULT_VARIABLE AWK_FAIL)
- if(AWK_FAIL)
- message(FATAL_ERROR "Failed to generate pnglibconf.tf5")
- endif()
-
- file(REMOVE "pnglibconf.tf4")
- file(MAKE_DIRECTORY "${BINDIR}/scripts")
- file(RENAME "pnglibconf.tf5" "${BINDIR}/pnglibconf.c")
-
-elseif ("${OUTPUT}" STREQUAL "pnglibconf.h")
- # Generate pnglibconf.h
-
- file(REMOVE "${BINDIR}/${OUTPUT}")
- if(PNG_PREFIX)
- file(REMOVE "pnglibconf.tf8")
-
- execute_process(COMMAND "${AWK}" "s==0 && NR>1{print prev}
- s==0{prev=\$0}
- s==1{print \"#define\", \$1, \"${PNG_PREFIX}\" \$1}
- s==2{print \"#define ${PNG_PREFIX}png_\" \$1, \"PNG_\" \$1}
- END{print prev}" s=0 pnglibconf.out s=1 "${BINDIR}/scripts/prefix.out"
- s=2 "${SRCDIR}/scripts/macro.lst"
- OUTPUT_FILE pnglibconf.tf8
- RESULT_VARIABLE AWK_FAIL)
- if(AWK_FAIL)
- message(FATAL_ERROR "Failed to generate pnglibconf.tf8")
- endif()
-
- file(RENAME "pnglibconf.tf8" "${BINDIR}/${OUTPUT}")
- else()
- execute_process(COMMAND "${CMAKE_COMMAND}" -E copy "${BINDIR}/pnglibconf.out"
- "${BINDIR}/${OUTPUT}"
- RESULT_VARIABLE COPY_FAIL)
- if(COPY_FAIL)
- message(FATAL_ERROR "Failed to create pnglibconf.h")
- endif()
- endif()
-
-elseif ("${OUTPUT}" STREQUAL "pngprefix.h")
- # Generate pngprefix.h
-
- file(REMOVE "${BINDIR}/${OUTPUT}")
-
- if(PNG_PREFIX)
- file(REMOVE "pngprefix.tf1")
-
- execute_process(COMMAND "${AWK}"
- "{print \"#define\", \$1, \"${PNG_PREFIX}\" \$1}"
- "${BINDIR}/scripts/intprefix.out"
- OUTPUT_FILE "pngprefix.tf1"
- RESULT_VARIABLE AWK_FAIL)
- if(AWK_FAIL)
- message(FATAL_ERROR "Failed to generate pngprefix.tf1")
- endif()
-
- file(RENAME "pngprefix.tf1" "${BINDIR}/${OUTPUT}")
- else()
- file(WRITE "${BINDIR}/${OUTPUT}" "/* No libpng symbol prefix configured. */")
- endif()
-
-elseif("${OUTPUT}" STREQUAL "scripts/pnglibconf.h.prebuilt")
- # Generate scripts/pnglibconf.h.prebuilt (fails build)
-
- message(STATUS "Attempting to build scripts/pnglibconf.h.prebuilt")
- message(STATUS "This is a machine generated file, but if you want to make")
- message(STATUS "a new one simply build the 'genfiles' target, and copy")
- message(STATUS "scripts/pnglibconf.out to scripts/pnglibconf.h.prebuilt")
- message(STATUS "AND set PNG_ZLIB_VERNUM to 0 (you MUST do this)")
- message(FATAL_ERROR "Stopping build")
-
-else()
- message(FATAL_ERROR "Unsupported output: ${OUTPUT}")
-endif()
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/intprefix.c b/3rdparty/libpng/libpng-1.6.37/scripts/intprefix.c
deleted file mode 100644
index 254f8e9..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/intprefix.c
+++ /dev/null
@@ -1,22 +0,0 @@
-
-/* intprefix.c - generate an unprefixed internal symbol list
- *
- * Last changed in libpng version 1.6.16 [December 22, 2014]
- * Copyright (c) 2013-2014 Glenn Randers-Pehrson
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#define PNG_INTERNAL_DATA(type, name, array)\
- PNG_DFN "@" name "@"
-
-#define PNG_INTERNAL_FUNCTION(type, name, args, attributes)\
- PNG_DFN "@" name "@"
-
-#define PNG_INTERNAL_CALLBACK(type, name, args, attributes)\
- PNG_DFN "@" name "@"
-
-#define PNGPREFIX_H /* self generation */
-#include "../pngpriv.h"
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/libpng-config-body.in b/3rdparty/libpng/libpng-1.6.37/scripts/libpng-config-body.in
deleted file mode 100644
index b466432..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/libpng-config-body.in
+++ /dev/null
@@ -1,96 +0,0 @@
-
-usage()
-{
- cat <<EOF
-Usage: libpng-config [OPTION] ...
-
-Known values for OPTION are:
-
- --prefix print libpng prefix
- --libdir print path to directory containing library
- --libs print library linking information
- --ccopts print compiler options
- --cppflags print pre-processor flags
- --cflags print preprocessor flags, I_opts, and compiler options
- --I_opts print "-I" include options
- --L_opts print linker "-L" flags for dynamic linking
- --R_opts print dynamic linker "-R" or "-rpath" flags
- --ldopts print linker options
- --ldflags print linker flags (ldopts, L_opts, R_opts, and libs)
- --static revise subsequent outputs for static linking
- --help print this help and exit
- --version print version information
-EOF
-
- exit $1
-}
-
-if test $# -eq 0; then
- usage 1
-fi
-
-while test $# -gt 0; do
- case "$1" in
-
- --prefix)
- echo ${prefix}
- ;;
-
- --version)
- echo ${version}
- exit 0
- ;;
-
- --help)
- usage 0
- ;;
-
- --ccopts)
- echo ${ccopts}
- ;;
-
- --cppflags)
- echo ${cppflags}
- ;;
-
- --cflags)
- echo ${I_opts} ${cppflags} ${ccopts}
- ;;
-
- --libdir)
- echo ${libdir}
- ;;
-
- --libs)
- echo ${libs}
- ;;
-
- --I_opts)
- echo ${I_opts}
- ;;
-
- --L_opts)
- echo ${L_opts}
- ;;
-
- --R_opts)
- echo ${R_opts}
- ;;
-
- --ldflags)
- echo ${ldflags} ${L_opts} ${R_opts} ${libs}
- ;;
-
- --static)
- R_opts=""
- ;;
-
- *)
- usage
- exit 1
- ;;
- esac
- shift
-done
-
-exit 0
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/libpng-config-head.in b/3rdparty/libpng/libpng-1.6.37/scripts/libpng-config-head.in
deleted file mode 100644
index 2a5afb4..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/libpng-config-head.in
+++ /dev/null
@@ -1,24 +0,0 @@
-#! /bin/sh
-
-# libpng-config
-# provides configuration info for libpng.
-
-# Copyright (C) 2002 Glenn Randers-Pehrson
-
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Modeled after libxml-config.
-
-version=1.6.37
-prefix=""
-libdir=""
-libs=""
-I_opts=""
-L_opts=""
-R_opts=""
-cppflags=""
-ccopts=""
-ldopts=""
-
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/libpng.pc.in b/3rdparty/libpng/libpng-1.6.37/scripts/libpng.pc.in
deleted file mode 100644
index 416fefe..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/libpng.pc.in
+++ /dev/null
@@ -1,10 +0,0 @@
-prefix=@prefix@
-exec_prefix=@exec_prefix@
-libdir=@libdir@
-includedir=@includedir@/libpng16
-
-Name: libpng
-Description: Loads and saves PNG files
-Version: 1.6.37
-Libs: -L${libdir} -lpng16
-Cflags: -I${includedir}
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/libtool.m4 b/3rdparty/libpng/libpng-1.6.37/scripts/libtool.m4
deleted file mode 100644
index a3bc337..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/libtool.m4
+++ /dev/null
@@ -1,8369 +0,0 @@
-# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*-
-#
-# Copyright (C) 1996-2001, 2003-2015 Free Software Foundation, Inc.
-# Written by Gordon Matzigkeit, 1996
-#
-# This file is free software; the Free Software Foundation gives
-# unlimited permission to copy and/or distribute it, with or without
-# modifications, as long as this notice is preserved.
-
-m4_define([_LT_COPYING], [dnl
-# Copyright (C) 2014 Free Software Foundation, Inc.
-# This is free software; see the source for copying conditions. There is NO
-# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-# GNU Libtool is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of of the License, or
-# (at your option) any later version.
-#
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program or library that is built
-# using GNU Libtool, you may include this file under the same
-# distribution terms that you use for the rest of that program.
-#
-# GNU Libtool is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-])
-
-# serial 58 LT_INIT
-
-
-# LT_PREREQ(VERSION)
-# ------------------
-# Complain and exit if this libtool version is less that VERSION.
-m4_defun([LT_PREREQ],
-[m4_if(m4_version_compare(m4_defn([LT_PACKAGE_VERSION]), [$1]), -1,
- [m4_default([$3],
- [m4_fatal([Libtool version $1 or higher is required],
- 63)])],
- [$2])])
-
-
-# _LT_CHECK_BUILDDIR
-# ------------------
-# Complain if the absolute build directory name contains unusual characters
-m4_defun([_LT_CHECK_BUILDDIR],
-[case `pwd` in
- *\ * | *\ *)
- AC_MSG_WARN([Libtool does not cope well with whitespace in `pwd`]) ;;
-esac
-])
-
-
-# LT_INIT([OPTIONS])
-# ------------------
-AC_DEFUN([LT_INIT],
-[AC_PREREQ([2.62])dnl We use AC_PATH_PROGS_FEATURE_CHECK
-AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
-AC_BEFORE([$0], [LT_LANG])dnl
-AC_BEFORE([$0], [LT_OUTPUT])dnl
-AC_BEFORE([$0], [LTDL_INIT])dnl
-m4_require([_LT_CHECK_BUILDDIR])dnl
-
-dnl Autoconf doesn't catch unexpanded LT_ macros by default:
-m4_pattern_forbid([^_?LT_[A-Z_]+$])dnl
-m4_pattern_allow([^(_LT_EOF|LT_DLGLOBAL|LT_DLLAZY_OR_NOW|LT_MULTI_MODULE)$])dnl
-dnl aclocal doesn't pull ltoptions.m4, ltsugar.m4, or ltversion.m4
-dnl unless we require an AC_DEFUNed macro:
-AC_REQUIRE([LTOPTIONS_VERSION])dnl
-AC_REQUIRE([LTSUGAR_VERSION])dnl
-AC_REQUIRE([LTVERSION_VERSION])dnl
-AC_REQUIRE([LTOBSOLETE_VERSION])dnl
-m4_require([_LT_PROG_LTMAIN])dnl
-
-_LT_SHELL_INIT([SHELL=${CONFIG_SHELL-/bin/sh}])
-
-dnl Parse OPTIONS
-_LT_SET_OPTIONS([$0], [$1])
-
-# This can be used to rebuild libtool when needed
-LIBTOOL_DEPS=$ltmain
-
-# Always use our own libtool.
-LIBTOOL='$(SHELL) $(top_builddir)/libtool'
-AC_SUBST(LIBTOOL)dnl
-
-_LT_SETUP
-
-# Only expand once:
-m4_define([LT_INIT])
-])# LT_INIT
-
-# Old names:
-AU_ALIAS([AC_PROG_LIBTOOL], [LT_INIT])
-AU_ALIAS([AM_PROG_LIBTOOL], [LT_INIT])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_PROG_LIBTOOL], [])
-dnl AC_DEFUN([AM_PROG_LIBTOOL], [])
-
-
-# _LT_PREPARE_CC_BASENAME
-# -----------------------
-m4_defun([_LT_PREPARE_CC_BASENAME], [
-# Calculate cc_basename. Skip known compiler wrappers and cross-prefix.
-func_cc_basename ()
-{
- for cc_temp in @S|@*""; do
- case $cc_temp in
- compile | *[[\\/]]compile | ccache | *[[\\/]]ccache ) ;;
- distcc | *[[\\/]]distcc | purify | *[[\\/]]purify ) ;;
- \-*) ;;
- *) break;;
- esac
- done
- func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
-}
-])# _LT_PREPARE_CC_BASENAME
-
-
-# _LT_CC_BASENAME(CC)
-# -------------------
-# It would be clearer to call AC_REQUIREs from _LT_PREPARE_CC_BASENAME,
-# but that macro is also expanded into generated libtool script, which
-# arranges for $SED and $ECHO to be set by different means.
-m4_defun([_LT_CC_BASENAME],
-[m4_require([_LT_PREPARE_CC_BASENAME])dnl
-AC_REQUIRE([_LT_DECL_SED])dnl
-AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl
-func_cc_basename $1
-cc_basename=$func_cc_basename_result
-])
-
-
-# _LT_FILEUTILS_DEFAULTS
-# ----------------------
-# It is okay to use these file commands and assume they have been set
-# sensibly after 'm4_require([_LT_FILEUTILS_DEFAULTS])'.
-m4_defun([_LT_FILEUTILS_DEFAULTS],
-[: ${CP="cp -f"}
-: ${MV="mv -f"}
-: ${RM="rm -f"}
-])# _LT_FILEUTILS_DEFAULTS
-
-
-# _LT_SETUP
-# ---------
-m4_defun([_LT_SETUP],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-AC_REQUIRE([AC_CANONICAL_BUILD])dnl
-AC_REQUIRE([_LT_PREPARE_SED_QUOTE_VARS])dnl
-AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl
-
-_LT_DECL([], [PATH_SEPARATOR], [1], [The PATH separator for the build system])dnl
-dnl
-_LT_DECL([], [host_alias], [0], [The host system])dnl
-_LT_DECL([], [host], [0])dnl
-_LT_DECL([], [host_os], [0])dnl
-dnl
-_LT_DECL([], [build_alias], [0], [The build system])dnl
-_LT_DECL([], [build], [0])dnl
-_LT_DECL([], [build_os], [0])dnl
-dnl
-AC_REQUIRE([AC_PROG_CC])dnl
-AC_REQUIRE([LT_PATH_LD])dnl
-AC_REQUIRE([LT_PATH_NM])dnl
-dnl
-AC_REQUIRE([AC_PROG_LN_S])dnl
-test -z "$LN_S" && LN_S="ln -s"
-_LT_DECL([], [LN_S], [1], [Whether we need soft or hard links])dnl
-dnl
-AC_REQUIRE([LT_CMD_MAX_LEN])dnl
-_LT_DECL([objext], [ac_objext], [0], [Object file suffix (normally "o")])dnl
-_LT_DECL([], [exeext], [0], [Executable file suffix (normally "")])dnl
-dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_CHECK_SHELL_FEATURES])dnl
-m4_require([_LT_PATH_CONVERSION_FUNCTIONS])dnl
-m4_require([_LT_CMD_RELOAD])dnl
-m4_require([_LT_CHECK_MAGIC_METHOD])dnl
-m4_require([_LT_CHECK_SHAREDLIB_FROM_LINKLIB])dnl
-m4_require([_LT_CMD_OLD_ARCHIVE])dnl
-m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
-m4_require([_LT_WITH_SYSROOT])dnl
-m4_require([_LT_CMD_TRUNCATE])dnl
-
-_LT_CONFIG_LIBTOOL_INIT([
-# See if we are running on zsh, and set the options that allow our
-# commands through without removal of \ escapes INIT.
-if test -n "\${ZSH_VERSION+set}"; then
- setopt NO_GLOB_SUBST
-fi
-])
-if test -n "${ZSH_VERSION+set}"; then
- setopt NO_GLOB_SUBST
-fi
-
-_LT_CHECK_OBJDIR
-
-m4_require([_LT_TAG_COMPILER])dnl
-
-case $host_os in
-aix3*)
- # AIX sometimes has problems with the GCC collect2 program. For some
- # reason, if we set the COLLECT_NAMES environment variable, the problems
- # vanish in a puff of smoke.
- if test set != "${COLLECT_NAMES+set}"; then
- COLLECT_NAMES=
- export COLLECT_NAMES
- fi
- ;;
-esac
-
-# Global variables:
-ofile=libtool
-can_build_shared=yes
-
-# All known linkers require a '.a' archive for static linking (except MSVC,
-# which needs '.lib').
-libext=a
-
-with_gnu_ld=$lt_cv_prog_gnu_ld
-
-old_CC=$CC
-old_CFLAGS=$CFLAGS
-
-# Set sane defaults for various variables
-test -z "$CC" && CC=cc
-test -z "$LTCC" && LTCC=$CC
-test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
-test -z "$LD" && LD=ld
-test -z "$ac_objext" && ac_objext=o
-
-_LT_CC_BASENAME([$compiler])
-
-# Only perform the check for file, if the check method requires it
-test -z "$MAGIC_CMD" && MAGIC_CMD=file
-case $deplibs_check_method in
-file_magic*)
- if test "$file_magic_cmd" = '$MAGIC_CMD'; then
- _LT_PATH_MAGIC
- fi
- ;;
-esac
-
-# Use C for the default configuration in the libtool script
-LT_SUPPORTED_TAG([CC])
-_LT_LANG_C_CONFIG
-_LT_LANG_DEFAULT_CONFIG
-_LT_CONFIG_COMMANDS
-])# _LT_SETUP
-
-
-# _LT_PREPARE_SED_QUOTE_VARS
-# --------------------------
-# Define a few sed substitution that help us do robust quoting.
-m4_defun([_LT_PREPARE_SED_QUOTE_VARS],
-[# Backslashify metacharacters that are still active within
-# double-quoted strings.
-sed_quote_subst='s/\([["`$\\]]\)/\\\1/g'
-
-# Same as above, but do not quote variable references.
-double_quote_subst='s/\([["`\\]]\)/\\\1/g'
-
-# Sed substitution to delay expansion of an escaped shell variable in a
-# double_quote_subst'ed string.
-delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
-
-# Sed substitution to delay expansion of an escaped single quote.
-delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g'
-
-# Sed substitution to avoid accidental globbing in evaled expressions
-no_glob_subst='s/\*/\\\*/g'
-])
-
-# _LT_PROG_LTMAIN
-# ---------------
-# Note that this code is called both from 'configure', and 'config.status'
-# now that we use AC_CONFIG_COMMANDS to generate libtool. Notably,
-# 'config.status' has no value for ac_aux_dir unless we are using Automake,
-# so we pass a copy along to make sure it has a sensible value anyway.
-m4_defun([_LT_PROG_LTMAIN],
-[m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([ltmain.sh])])dnl
-_LT_CONFIG_LIBTOOL_INIT([ac_aux_dir='$ac_aux_dir'])
-ltmain=$ac_aux_dir/ltmain.sh
-])# _LT_PROG_LTMAIN
-
-
-## ------------------------------------- ##
-## Accumulate code for creating libtool. ##
-## ------------------------------------- ##
-
-# So that we can recreate a full libtool script including additional
-# tags, we accumulate the chunks of code to send to AC_CONFIG_COMMANDS
-# in macros and then make a single call at the end using the 'libtool'
-# label.
-
-
-# _LT_CONFIG_LIBTOOL_INIT([INIT-COMMANDS])
-# ----------------------------------------
-# Register INIT-COMMANDS to be passed to AC_CONFIG_COMMANDS later.
-m4_define([_LT_CONFIG_LIBTOOL_INIT],
-[m4_ifval([$1],
- [m4_append([_LT_OUTPUT_LIBTOOL_INIT],
- [$1
-])])])
-
-# Initialize.
-m4_define([_LT_OUTPUT_LIBTOOL_INIT])
-
-
-# _LT_CONFIG_LIBTOOL([COMMANDS])
-# ------------------------------
-# Register COMMANDS to be passed to AC_CONFIG_COMMANDS later.
-m4_define([_LT_CONFIG_LIBTOOL],
-[m4_ifval([$1],
- [m4_append([_LT_OUTPUT_LIBTOOL_COMMANDS],
- [$1
-])])])
-
-# Initialize.
-m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS])
-
-
-# _LT_CONFIG_SAVE_COMMANDS([COMMANDS], [INIT_COMMANDS])
-# -----------------------------------------------------
-m4_defun([_LT_CONFIG_SAVE_COMMANDS],
-[_LT_CONFIG_LIBTOOL([$1])
-_LT_CONFIG_LIBTOOL_INIT([$2])
-])
-
-
-# _LT_FORMAT_COMMENT([COMMENT])
-# -----------------------------
-# Add leading comment marks to the start of each line, and a trailing
-# full-stop to the whole comment if one is not present already.
-m4_define([_LT_FORMAT_COMMENT],
-[m4_ifval([$1], [
-m4_bpatsubst([m4_bpatsubst([$1], [^ *], [# ])],
- [['`$\]], [\\\&])]m4_bmatch([$1], [[!?.]$], [], [.])
-)])
-
-
-
-## ------------------------ ##
-## FIXME: Eliminate VARNAME ##
-## ------------------------ ##
-
-
-# _LT_DECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION], [IS-TAGGED?])
-# -------------------------------------------------------------------
-# CONFIGNAME is the name given to the value in the libtool script.
-# VARNAME is the (base) name used in the configure script.
-# VALUE may be 0, 1 or 2 for a computed quote escaped value based on
-# VARNAME. Any other value will be used directly.
-m4_define([_LT_DECL],
-[lt_if_append_uniq([lt_decl_varnames], [$2], [, ],
- [lt_dict_add_subkey([lt_decl_dict], [$2], [libtool_name],
- [m4_ifval([$1], [$1], [$2])])
- lt_dict_add_subkey([lt_decl_dict], [$2], [value], [$3])
- m4_ifval([$4],
- [lt_dict_add_subkey([lt_decl_dict], [$2], [description], [$4])])
- lt_dict_add_subkey([lt_decl_dict], [$2],
- [tagged?], [m4_ifval([$5], [yes], [no])])])
-])
-
-
-# _LT_TAGDECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION])
-# --------------------------------------------------------
-m4_define([_LT_TAGDECL], [_LT_DECL([$1], [$2], [$3], [$4], [yes])])
-
-
-# lt_decl_tag_varnames([SEPARATOR], [VARNAME1...])
-# ------------------------------------------------
-m4_define([lt_decl_tag_varnames],
-[_lt_decl_filter([tagged?], [yes], $@)])
-
-
-# _lt_decl_filter(SUBKEY, VALUE, [SEPARATOR], [VARNAME1..])
-# ---------------------------------------------------------
-m4_define([_lt_decl_filter],
-[m4_case([$#],
- [0], [m4_fatal([$0: too few arguments: $#])],
- [1], [m4_fatal([$0: too few arguments: $#: $1])],
- [2], [lt_dict_filter([lt_decl_dict], [$1], [$2], [], lt_decl_varnames)],
- [3], [lt_dict_filter([lt_decl_dict], [$1], [$2], [$3], lt_decl_varnames)],
- [lt_dict_filter([lt_decl_dict], $@)])[]dnl
-])
-
-
-# lt_decl_quote_varnames([SEPARATOR], [VARNAME1...])
-# --------------------------------------------------
-m4_define([lt_decl_quote_varnames],
-[_lt_decl_filter([value], [1], $@)])
-
-
-# lt_decl_dquote_varnames([SEPARATOR], [VARNAME1...])
-# ---------------------------------------------------
-m4_define([lt_decl_dquote_varnames],
-[_lt_decl_filter([value], [2], $@)])
-
-
-# lt_decl_varnames_tagged([SEPARATOR], [VARNAME1...])
-# ---------------------------------------------------
-m4_define([lt_decl_varnames_tagged],
-[m4_assert([$# <= 2])dnl
-_$0(m4_quote(m4_default([$1], [[, ]])),
- m4_ifval([$2], [[$2]], [m4_dquote(lt_decl_tag_varnames)]),
- m4_split(m4_normalize(m4_quote(_LT_TAGS)), [ ]))])
-m4_define([_lt_decl_varnames_tagged],
-[m4_ifval([$3], [lt_combine([$1], [$2], [_], $3)])])
-
-
-# lt_decl_all_varnames([SEPARATOR], [VARNAME1...])
-# ------------------------------------------------
-m4_define([lt_decl_all_varnames],
-[_$0(m4_quote(m4_default([$1], [[, ]])),
- m4_if([$2], [],
- m4_quote(lt_decl_varnames),
- m4_quote(m4_shift($@))))[]dnl
-])
-m4_define([_lt_decl_all_varnames],
-[lt_join($@, lt_decl_varnames_tagged([$1],
- lt_decl_tag_varnames([[, ]], m4_shift($@))))dnl
-])
-
-
-# _LT_CONFIG_STATUS_DECLARE([VARNAME])
-# ------------------------------------
-# Quote a variable value, and forward it to 'config.status' so that its
-# declaration there will have the same value as in 'configure'. VARNAME
-# must have a single quote delimited value for this to work.
-m4_define([_LT_CONFIG_STATUS_DECLARE],
-[$1='`$ECHO "$][$1" | $SED "$delay_single_quote_subst"`'])
-
-
-# _LT_CONFIG_STATUS_DECLARATIONS
-# ------------------------------
-# We delimit libtool config variables with single quotes, so when
-# we write them to config.status, we have to be sure to quote all
-# embedded single quotes properly. In configure, this macro expands
-# each variable declared with _LT_DECL (and _LT_TAGDECL) into:
-#
-# <var>='`$ECHO "$<var>" | $SED "$delay_single_quote_subst"`'
-m4_defun([_LT_CONFIG_STATUS_DECLARATIONS],
-[m4_foreach([_lt_var], m4_quote(lt_decl_all_varnames),
- [m4_n([_LT_CONFIG_STATUS_DECLARE(_lt_var)])])])
-
-
-# _LT_LIBTOOL_TAGS
-# ----------------
-# Output comment and list of tags supported by the script
-m4_defun([_LT_LIBTOOL_TAGS],
-[_LT_FORMAT_COMMENT([The names of the tagged configurations supported by this script])dnl
-available_tags='_LT_TAGS'dnl
-])
-
-
-# _LT_LIBTOOL_DECLARE(VARNAME, [TAG])
-# -----------------------------------
-# Extract the dictionary values for VARNAME (optionally with TAG) and
-# expand to a commented shell variable setting:
-#
-# # Some comment about what VAR is for.
-# visible_name=$lt_internal_name
-m4_define([_LT_LIBTOOL_DECLARE],
-[_LT_FORMAT_COMMENT(m4_quote(lt_dict_fetch([lt_decl_dict], [$1],
- [description])))[]dnl
-m4_pushdef([_libtool_name],
- m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [libtool_name])))[]dnl
-m4_case(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [value])),
- [0], [_libtool_name=[$]$1],
- [1], [_libtool_name=$lt_[]$1],
- [2], [_libtool_name=$lt_[]$1],
- [_libtool_name=lt_dict_fetch([lt_decl_dict], [$1], [value])])[]dnl
-m4_ifval([$2], [_$2])[]m4_popdef([_libtool_name])[]dnl
-])
-
-
-# _LT_LIBTOOL_CONFIG_VARS
-# -----------------------
-# Produce commented declarations of non-tagged libtool config variables
-# suitable for insertion in the LIBTOOL CONFIG section of the 'libtool'
-# script. Tagged libtool config variables (even for the LIBTOOL CONFIG
-# section) are produced by _LT_LIBTOOL_TAG_VARS.
-m4_defun([_LT_LIBTOOL_CONFIG_VARS],
-[m4_foreach([_lt_var],
- m4_quote(_lt_decl_filter([tagged?], [no], [], lt_decl_varnames)),
- [m4_n([_LT_LIBTOOL_DECLARE(_lt_var)])])])
-
-
-# _LT_LIBTOOL_TAG_VARS(TAG)
-# -------------------------
-m4_define([_LT_LIBTOOL_TAG_VARS],
-[m4_foreach([_lt_var], m4_quote(lt_decl_tag_varnames),
- [m4_n([_LT_LIBTOOL_DECLARE(_lt_var, [$1])])])])
-
-
-# _LT_TAGVAR(VARNAME, [TAGNAME])
-# ------------------------------
-m4_define([_LT_TAGVAR], [m4_ifval([$2], [$1_$2], [$1])])
-
-
-# _LT_CONFIG_COMMANDS
-# -------------------
-# Send accumulated output to $CONFIG_STATUS. Thanks to the lists of
-# variables for single and double quote escaping we saved from calls
-# to _LT_DECL, we can put quote escaped variables declarations
-# into 'config.status', and then the shell code to quote escape them in
-# for loops in 'config.status'. Finally, any additional code accumulated
-# from calls to _LT_CONFIG_LIBTOOL_INIT is expanded.
-m4_defun([_LT_CONFIG_COMMANDS],
-[AC_PROVIDE_IFELSE([LT_OUTPUT],
- dnl If the libtool generation code has been placed in $CONFIG_LT,
- dnl instead of duplicating it all over again into config.status,
- dnl then we will have config.status run $CONFIG_LT later, so it
- dnl needs to know what name is stored there:
- [AC_CONFIG_COMMANDS([libtool],
- [$SHELL $CONFIG_LT || AS_EXIT(1)], [CONFIG_LT='$CONFIG_LT'])],
- dnl If the libtool generation code is destined for config.status,
- dnl expand the accumulated commands and init code now:
- [AC_CONFIG_COMMANDS([libtool],
- [_LT_OUTPUT_LIBTOOL_COMMANDS], [_LT_OUTPUT_LIBTOOL_COMMANDS_INIT])])
-])#_LT_CONFIG_COMMANDS
-
-
-# Initialize.
-m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS_INIT],
-[
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-sed_quote_subst='$sed_quote_subst'
-double_quote_subst='$double_quote_subst'
-delay_variable_subst='$delay_variable_subst'
-_LT_CONFIG_STATUS_DECLARATIONS
-LTCC='$LTCC'
-LTCFLAGS='$LTCFLAGS'
-compiler='$compiler_DEFAULT'
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
- eval 'cat <<_LTECHO_EOF
-\$[]1
-_LTECHO_EOF'
-}
-
-# Quote evaled strings.
-for var in lt_decl_all_varnames([[ \
-]], lt_decl_quote_varnames); do
- case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
- *[[\\\\\\\`\\"\\\$]]*)
- eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
- ;;
- *)
- eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
- ;;
- esac
-done
-
-# Double-quote double-evaled strings.
-for var in lt_decl_all_varnames([[ \
-]], lt_decl_dquote_varnames); do
- case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
- *[[\\\\\\\`\\"\\\$]]*)
- eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
- ;;
- *)
- eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
- ;;
- esac
-done
-
-_LT_OUTPUT_LIBTOOL_INIT
-])
-
-# _LT_GENERATED_FILE_INIT(FILE, [COMMENT])
-# ------------------------------------
-# Generate a child script FILE with all initialization necessary to
-# reuse the environment learned by the parent script, and make the
-# file executable. If COMMENT is supplied, it is inserted after the
-# '#!' sequence but before initialization text begins. After this
-# macro, additional text can be appended to FILE to form the body of
-# the child script. The macro ends with non-zero status if the
-# file could not be fully written (such as if the disk is full).
-m4_ifdef([AS_INIT_GENERATED],
-[m4_defun([_LT_GENERATED_FILE_INIT],[AS_INIT_GENERATED($@)])],
-[m4_defun([_LT_GENERATED_FILE_INIT],
-[m4_require([AS_PREPARE])]dnl
-[m4_pushdef([AS_MESSAGE_LOG_FD])]dnl
-[lt_write_fail=0
-cat >$1 <<_ASEOF || lt_write_fail=1
-#! $SHELL
-# Generated by $as_me.
-$2
-SHELL=\${CONFIG_SHELL-$SHELL}
-export SHELL
-_ASEOF
-cat >>$1 <<\_ASEOF || lt_write_fail=1
-AS_SHELL_SANITIZE
-_AS_PREPARE
-exec AS_MESSAGE_FD>&1
-_ASEOF
-test 0 = "$lt_write_fail" && chmod +x $1[]dnl
-m4_popdef([AS_MESSAGE_LOG_FD])])])# _LT_GENERATED_FILE_INIT
-
-# LT_OUTPUT
-# ---------
-# This macro allows early generation of the libtool script (before
-# AC_OUTPUT is called), incase it is used in configure for compilation
-# tests.
-AC_DEFUN([LT_OUTPUT],
-[: ${CONFIG_LT=./config.lt}
-AC_MSG_NOTICE([creating $CONFIG_LT])
-_LT_GENERATED_FILE_INIT(["$CONFIG_LT"],
-[# Run this file to recreate a libtool stub with the current configuration.])
-
-cat >>"$CONFIG_LT" <<\_LTEOF
-lt_cl_silent=false
-exec AS_MESSAGE_LOG_FD>>config.log
-{
- echo
- AS_BOX([Running $as_me.])
-} >&AS_MESSAGE_LOG_FD
-
-lt_cl_help="\
-'$as_me' creates a local libtool stub from the current configuration,
-for use in further configure time tests before the real libtool is
-generated.
-
-Usage: $[0] [[OPTIONS]]
-
- -h, --help print this help, then exit
- -V, --version print version number, then exit
- -q, --quiet do not print progress messages
- -d, --debug don't remove temporary files
-
-Report bugs to <bug-libtool@gnu.org>."
-
-lt_cl_version="\
-m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl
-m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
-configured by $[0], generated by m4_PACKAGE_STRING.
-
-Copyright (C) 2011 Free Software Foundation, Inc.
-This config.lt script is free software; the Free Software Foundation
-gives unlimited permision to copy, distribute and modify it."
-
-while test 0 != $[#]
-do
- case $[1] in
- --version | --v* | -V )
- echo "$lt_cl_version"; exit 0 ;;
- --help | --h* | -h )
- echo "$lt_cl_help"; exit 0 ;;
- --debug | --d* | -d )
- debug=: ;;
- --quiet | --q* | --silent | --s* | -q )
- lt_cl_silent=: ;;
-
- -*) AC_MSG_ERROR([unrecognized option: $[1]
-Try '$[0] --help' for more information.]) ;;
-
- *) AC_MSG_ERROR([unrecognized argument: $[1]
-Try '$[0] --help' for more information.]) ;;
- esac
- shift
-done
-
-if $lt_cl_silent; then
- exec AS_MESSAGE_FD>/dev/null
-fi
-_LTEOF
-
-cat >>"$CONFIG_LT" <<_LTEOF
-_LT_OUTPUT_LIBTOOL_COMMANDS_INIT
-_LTEOF
-
-cat >>"$CONFIG_LT" <<\_LTEOF
-AC_MSG_NOTICE([creating $ofile])
-_LT_OUTPUT_LIBTOOL_COMMANDS
-AS_EXIT(0)
-_LTEOF
-chmod +x "$CONFIG_LT"
-
-# configure is writing to config.log, but config.lt does its own redirection,
-# appending to config.log, which fails on DOS, as config.log is still kept
-# open by configure. Here we exec the FD to /dev/null, effectively closing
-# config.log, so it can be properly (re)opened and appended to by config.lt.
-lt_cl_success=:
-test yes = "$silent" &&
- lt_config_lt_args="$lt_config_lt_args --quiet"
-exec AS_MESSAGE_LOG_FD>/dev/null
-$SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false
-exec AS_MESSAGE_LOG_FD>>config.log
-$lt_cl_success || AS_EXIT(1)
-])# LT_OUTPUT
-
-
-# _LT_CONFIG(TAG)
-# ---------------
-# If TAG is the built-in tag, create an initial libtool script with a
-# default configuration from the untagged config vars. Otherwise add code
-# to config.status for appending the configuration named by TAG from the
-# matching tagged config vars.
-m4_defun([_LT_CONFIG],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-_LT_CONFIG_SAVE_COMMANDS([
- m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl
- m4_if(_LT_TAG, [C], [
- # See if we are running on zsh, and set the options that allow our
- # commands through without removal of \ escapes.
- if test -n "${ZSH_VERSION+set}"; then
- setopt NO_GLOB_SUBST
- fi
-
- cfgfile=${ofile}T
- trap "$RM \"$cfgfile\"; exit 1" 1 2 15
- $RM "$cfgfile"
-
- cat <<_LT_EOF >> "$cfgfile"
-#! $SHELL
-# Generated automatically by $as_me ($PACKAGE) $VERSION
-# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
-# NOTE: Changes made to this file will be lost: look at ltmain.sh.
-
-# Provide generalized library-building support services.
-# Written by Gordon Matzigkeit, 1996
-
-_LT_COPYING
-_LT_LIBTOOL_TAGS
-
-# Configured defaults for sys_lib_dlsearch_path munging.
-: \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"}
-
-# ### BEGIN LIBTOOL CONFIG
-_LT_LIBTOOL_CONFIG_VARS
-_LT_LIBTOOL_TAG_VARS
-# ### END LIBTOOL CONFIG
-
-_LT_EOF
-
- cat <<'_LT_EOF' >> "$cfgfile"
-
-# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE
-
-_LT_PREPARE_MUNGE_PATH_LIST
-_LT_PREPARE_CC_BASENAME
-
-# ### END FUNCTIONS SHARED WITH CONFIGURE
-
-_LT_EOF
-
- case $host_os in
- aix3*)
- cat <<\_LT_EOF >> "$cfgfile"
-# AIX sometimes has problems with the GCC collect2 program. For some
-# reason, if we set the COLLECT_NAMES environment variable, the problems
-# vanish in a puff of smoke.
-if test set != "${COLLECT_NAMES+set}"; then
- COLLECT_NAMES=
- export COLLECT_NAMES
-fi
-_LT_EOF
- ;;
- esac
-
- _LT_PROG_LTMAIN
-
- # We use sed instead of cat because bash on DJGPP gets confused if
- # if finds mixed CR/LF and LF-only lines. Since sed operates in
- # text mode, it properly converts lines to CR/LF. This bash problem
- # is reportedly fixed, but why not run on old versions too?
- sed '$q' "$ltmain" >> "$cfgfile" \
- || (rm -f "$cfgfile"; exit 1)
-
- mv -f "$cfgfile" "$ofile" ||
- (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
- chmod +x "$ofile"
-],
-[cat <<_LT_EOF >> "$ofile"
-
-dnl Unfortunately we have to use $1 here, since _LT_TAG is not expanded
-dnl in a comment (ie after a #).
-# ### BEGIN LIBTOOL TAG CONFIG: $1
-_LT_LIBTOOL_TAG_VARS(_LT_TAG)
-# ### END LIBTOOL TAG CONFIG: $1
-_LT_EOF
-])dnl /m4_if
-],
-[m4_if([$1], [], [
- PACKAGE='$PACKAGE'
- VERSION='$VERSION'
- RM='$RM'
- ofile='$ofile'], [])
-])dnl /_LT_CONFIG_SAVE_COMMANDS
-])# _LT_CONFIG
-
-
-# LT_SUPPORTED_TAG(TAG)
-# ---------------------
-# Trace this macro to discover what tags are supported by the libtool
-# --tag option, using:
-# autoconf --trace 'LT_SUPPORTED_TAG:$1'
-AC_DEFUN([LT_SUPPORTED_TAG], [])
-
-
-# C support is built-in for now
-m4_define([_LT_LANG_C_enabled], [])
-m4_define([_LT_TAGS], [])
-
-
-# LT_LANG(LANG)
-# -------------
-# Enable libtool support for the given language if not already enabled.
-AC_DEFUN([LT_LANG],
-[AC_BEFORE([$0], [LT_OUTPUT])dnl
-m4_case([$1],
- [C], [_LT_LANG(C)],
- [C++], [_LT_LANG(CXX)],
- [Go], [_LT_LANG(GO)],
- [Java], [_LT_LANG(GCJ)],
- [Fortran 77], [_LT_LANG(F77)],
- [Fortran], [_LT_LANG(FC)],
- [Windows Resource], [_LT_LANG(RC)],
- [m4_ifdef([_LT_LANG_]$1[_CONFIG],
- [_LT_LANG($1)],
- [m4_fatal([$0: unsupported language: "$1"])])])dnl
-])# LT_LANG
-
-
-# _LT_LANG(LANGNAME)
-# ------------------
-m4_defun([_LT_LANG],
-[m4_ifdef([_LT_LANG_]$1[_enabled], [],
- [LT_SUPPORTED_TAG([$1])dnl
- m4_append([_LT_TAGS], [$1 ])dnl
- m4_define([_LT_LANG_]$1[_enabled], [])dnl
- _LT_LANG_$1_CONFIG($1)])dnl
-])# _LT_LANG
-
-
-m4_ifndef([AC_PROG_GO], [
-############################################################
-# NOTE: This macro has been submitted for inclusion into #
-# GNU Autoconf as AC_PROG_GO. When it is available in #
-# a released version of Autoconf we should remove this #
-# macro and use it instead. #
-############################################################
-m4_defun([AC_PROG_GO],
-[AC_LANG_PUSH(Go)dnl
-AC_ARG_VAR([GOC], [Go compiler command])dnl
-AC_ARG_VAR([GOFLAGS], [Go compiler flags])dnl
-_AC_ARG_VAR_LDFLAGS()dnl
-AC_CHECK_TOOL(GOC, gccgo)
-if test -z "$GOC"; then
- if test -n "$ac_tool_prefix"; then
- AC_CHECK_PROG(GOC, [${ac_tool_prefix}gccgo], [${ac_tool_prefix}gccgo])
- fi
-fi
-if test -z "$GOC"; then
- AC_CHECK_PROG(GOC, gccgo, gccgo, false)
-fi
-])#m4_defun
-])#m4_ifndef
-
-
-# _LT_LANG_DEFAULT_CONFIG
-# -----------------------
-m4_defun([_LT_LANG_DEFAULT_CONFIG],
-[AC_PROVIDE_IFELSE([AC_PROG_CXX],
- [LT_LANG(CXX)],
- [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[LT_LANG(CXX)])])
-
-AC_PROVIDE_IFELSE([AC_PROG_F77],
- [LT_LANG(F77)],
- [m4_define([AC_PROG_F77], defn([AC_PROG_F77])[LT_LANG(F77)])])
-
-AC_PROVIDE_IFELSE([AC_PROG_FC],
- [LT_LANG(FC)],
- [m4_define([AC_PROG_FC], defn([AC_PROG_FC])[LT_LANG(FC)])])
-
-dnl The call to [A][M_PROG_GCJ] is quoted like that to stop aclocal
-dnl pulling things in needlessly.
-AC_PROVIDE_IFELSE([AC_PROG_GCJ],
- [LT_LANG(GCJ)],
- [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],
- [LT_LANG(GCJ)],
- [AC_PROVIDE_IFELSE([LT_PROG_GCJ],
- [LT_LANG(GCJ)],
- [m4_ifdef([AC_PROG_GCJ],
- [m4_define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[LT_LANG(GCJ)])])
- m4_ifdef([A][M_PROG_GCJ],
- [m4_define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[LT_LANG(GCJ)])])
- m4_ifdef([LT_PROG_GCJ],
- [m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])])
-
-AC_PROVIDE_IFELSE([AC_PROG_GO],
- [LT_LANG(GO)],
- [m4_define([AC_PROG_GO], defn([AC_PROG_GO])[LT_LANG(GO)])])
-
-AC_PROVIDE_IFELSE([LT_PROG_RC],
- [LT_LANG(RC)],
- [m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])])
-])# _LT_LANG_DEFAULT_CONFIG
-
-# Obsolete macros:
-AU_DEFUN([AC_LIBTOOL_CXX], [LT_LANG(C++)])
-AU_DEFUN([AC_LIBTOOL_F77], [LT_LANG(Fortran 77)])
-AU_DEFUN([AC_LIBTOOL_FC], [LT_LANG(Fortran)])
-AU_DEFUN([AC_LIBTOOL_GCJ], [LT_LANG(Java)])
-AU_DEFUN([AC_LIBTOOL_RC], [LT_LANG(Windows Resource)])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_CXX], [])
-dnl AC_DEFUN([AC_LIBTOOL_F77], [])
-dnl AC_DEFUN([AC_LIBTOOL_FC], [])
-dnl AC_DEFUN([AC_LIBTOOL_GCJ], [])
-dnl AC_DEFUN([AC_LIBTOOL_RC], [])
-
-
-# _LT_TAG_COMPILER
-# ----------------
-m4_defun([_LT_TAG_COMPILER],
-[AC_REQUIRE([AC_PROG_CC])dnl
-
-_LT_DECL([LTCC], [CC], [1], [A C compiler])dnl
-_LT_DECL([LTCFLAGS], [CFLAGS], [1], [LTCC compiler flags])dnl
-_LT_TAGDECL([CC], [compiler], [1], [A language specific compiler])dnl
-_LT_TAGDECL([with_gcc], [GCC], [0], [Is the compiler the GNU compiler?])dnl
-
-# If no C compiler was specified, use CC.
-LTCC=${LTCC-"$CC"}
-
-# If no C compiler flags were specified, use CFLAGS.
-LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
-
-# Allow CC to be a program name with arguments.
-compiler=$CC
-])# _LT_TAG_COMPILER
-
-
-# _LT_COMPILER_BOILERPLATE
-# ------------------------
-# Check for compiler boilerplate output or warnings with
-# the simple compiler test code.
-m4_defun([_LT_COMPILER_BOILERPLATE],
-[m4_require([_LT_DECL_SED])dnl
-ac_outfile=conftest.$ac_objext
-echo "$lt_simple_compile_test_code" >conftest.$ac_ext
-eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
-_lt_compiler_boilerplate=`cat conftest.err`
-$RM conftest*
-])# _LT_COMPILER_BOILERPLATE
-
-
-# _LT_LINKER_BOILERPLATE
-# ----------------------
-# Check for linker boilerplate output or warnings with
-# the simple link test code.
-m4_defun([_LT_LINKER_BOILERPLATE],
-[m4_require([_LT_DECL_SED])dnl
-ac_outfile=conftest.$ac_objext
-echo "$lt_simple_link_test_code" >conftest.$ac_ext
-eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
-_lt_linker_boilerplate=`cat conftest.err`
-$RM -r conftest*
-])# _LT_LINKER_BOILERPLATE
-
-# _LT_REQUIRED_DARWIN_CHECKS
-# -------------------------
-m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[
- case $host_os in
- rhapsody* | darwin*)
- AC_CHECK_TOOL([DSYMUTIL], [dsymutil], [:])
- AC_CHECK_TOOL([NMEDIT], [nmedit], [:])
- AC_CHECK_TOOL([LIPO], [lipo], [:])
- AC_CHECK_TOOL([OTOOL], [otool], [:])
- AC_CHECK_TOOL([OTOOL64], [otool64], [:])
- _LT_DECL([], [DSYMUTIL], [1],
- [Tool to manipulate archived DWARF debug symbol files on Mac OS X])
- _LT_DECL([], [NMEDIT], [1],
- [Tool to change global to local symbols on Mac OS X])
- _LT_DECL([], [LIPO], [1],
- [Tool to manipulate fat objects and archives on Mac OS X])
- _LT_DECL([], [OTOOL], [1],
- [ldd/readelf like tool for Mach-O binaries on Mac OS X])
- _LT_DECL([], [OTOOL64], [1],
- [ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4])
-
- AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod],
- [lt_cv_apple_cc_single_mod=no
- if test -z "$LT_MULTI_MODULE"; then
- # By default we will add the -single_module flag. You can override
- # by either setting the environment variable LT_MULTI_MODULE
- # non-empty at configure time, or by adding -multi_module to the
- # link flags.
- rm -rf libconftest.dylib*
- echo "int foo(void){return 1;}" > conftest.c
- echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
--dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD
- $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
- -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
- _lt_result=$?
- # If there is a non-empty error log, and "single_module"
- # appears in it, assume the flag caused a linker warning
- if test -s conftest.err && $GREP single_module conftest.err; then
- cat conftest.err >&AS_MESSAGE_LOG_FD
- # Otherwise, if the output was created with a 0 exit code from
- # the compiler, it worked.
- elif test -f libconftest.dylib && test 0 = "$_lt_result"; then
- lt_cv_apple_cc_single_mod=yes
- else
- cat conftest.err >&AS_MESSAGE_LOG_FD
- fi
- rm -rf libconftest.dylib*
- rm -f conftest.*
- fi])
-
- AC_CACHE_CHECK([for -exported_symbols_list linker flag],
- [lt_cv_ld_exported_symbols_list],
- [lt_cv_ld_exported_symbols_list=no
- save_LDFLAGS=$LDFLAGS
- echo "_main" > conftest.sym
- LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
- AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
- [lt_cv_ld_exported_symbols_list=yes],
- [lt_cv_ld_exported_symbols_list=no])
- LDFLAGS=$save_LDFLAGS
- ])
-
- AC_CACHE_CHECK([for -force_load linker flag],[lt_cv_ld_force_load],
- [lt_cv_ld_force_load=no
- cat > conftest.c << _LT_EOF
-int forced_loaded() { return 2;}
-_LT_EOF
- echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&AS_MESSAGE_LOG_FD
- $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&AS_MESSAGE_LOG_FD
- echo "$AR cru libconftest.a conftest.o" >&AS_MESSAGE_LOG_FD
- $AR cru libconftest.a conftest.o 2>&AS_MESSAGE_LOG_FD
- echo "$RANLIB libconftest.a" >&AS_MESSAGE_LOG_FD
- $RANLIB libconftest.a 2>&AS_MESSAGE_LOG_FD
- cat > conftest.c << _LT_EOF
-int main() { return 0;}
-_LT_EOF
- echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&AS_MESSAGE_LOG_FD
- $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
- _lt_result=$?
- if test -s conftest.err && $GREP force_load conftest.err; then
- cat conftest.err >&AS_MESSAGE_LOG_FD
- elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then
- lt_cv_ld_force_load=yes
- else
- cat conftest.err >&AS_MESSAGE_LOG_FD
- fi
- rm -f conftest.err libconftest.a conftest conftest.c
- rm -rf conftest.dSYM
- ])
- case $host_os in
- rhapsody* | darwin1.[[012]])
- _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;;
- darwin1.*)
- _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
- darwin*) # darwin 5.x on
- # if running on 10.5 or later, the deployment target defaults
- # to the OS version, if on x86, and 10.4, the deployment
- # target defaults to 10.4. Don't you love it?
- case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
- 10.0,*86*-darwin8*|10.0,*-darwin[[91]]*)
- _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
- 10.[[012]][[,.]]*)
- _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
- 10.*)
- _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
- esac
- ;;
- esac
- if test yes = "$lt_cv_apple_cc_single_mod"; then
- _lt_dar_single_mod='$single_module'
- fi
- if test yes = "$lt_cv_ld_exported_symbols_list"; then
- _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym'
- else
- _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib'
- fi
- if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then
- _lt_dsymutil='~$DSYMUTIL $lib || :'
- else
- _lt_dsymutil=
- fi
- ;;
- esac
-])
-
-
-# _LT_DARWIN_LINKER_FEATURES([TAG])
-# ---------------------------------
-# Checks for linker and compiler features on darwin
-m4_defun([_LT_DARWIN_LINKER_FEATURES],
-[
- m4_require([_LT_REQUIRED_DARWIN_CHECKS])
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_automatic, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
- if test yes = "$lt_cv_ld_force_load"; then
- _LT_TAGVAR(whole_archive_flag_spec, $1)='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
- m4_case([$1], [F77], [_LT_TAGVAR(compiler_needs_object, $1)=yes],
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- else
- _LT_TAGVAR(whole_archive_flag_spec, $1)=''
- fi
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(allow_undefined_flag, $1)=$_lt_dar_allow_undefined
- case $cc_basename in
- ifort*|nagfor*) _lt_dar_can_shared=yes ;;
- *) _lt_dar_can_shared=$GCC ;;
- esac
- if test yes = "$_lt_dar_can_shared"; then
- output_verbose_link_cmd=func_echo_all
- _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil"
- _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil"
- _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil"
- _LT_TAGVAR(module_expsym_cmds, $1)="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil"
- m4_if([$1], [CXX],
-[ if test yes != "$lt_cv_apple_cc_single_mod"; then
- _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dsymutil"
- _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dar_export_syms$_lt_dsymutil"
- fi
-],[])
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
-])
-
-# _LT_SYS_MODULE_PATH_AIX([TAGNAME])
-# ----------------------------------
-# Links a minimal program and checks the executable
-# for the system default hardcoded library path. In most cases,
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-# the location of the communication and MPI libs are included too.
-# If we don't find anything, use the default library path according
-# to the aix ld manual.
-# Store the results from the different compilers for each TAGNAME.
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-m4_defun([_LT_SYS_MODULE_PATH_AIX],
-[m4_require([_LT_DECL_SED])dnl
-if test set = "${lt_cv_aix_libpath+set}"; then
- aix_libpath=$lt_cv_aix_libpath
-else
- AC_CACHE_VAL([_LT_TAGVAR([lt_cv_aix_libpath_], [$1])],
- [AC_LINK_IFELSE([AC_LANG_PROGRAM],[
- lt_aix_libpath_sed='[
- /Import File Strings/,/^$/ {
- /^0/ {
- s/^0 *\([^ ]*\) *$/\1/
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- }
- }]'
- _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
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- if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then
- _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
- fi],[])
- if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then
- _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=/usr/lib:/lib
- fi
- ])
- aix_libpath=$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])
-fi
-])# _LT_SYS_MODULE_PATH_AIX
-
-
-# _LT_SHELL_INIT(ARG)
-# -------------------
-m4_define([_LT_SHELL_INIT],
-[m4_divert_text([M4SH-INIT], [$1
-])])# _LT_SHELL_INIT
-
-
-
-# _LT_PROG_ECHO_BACKSLASH
-# -----------------------
-# Find how we can fake an echo command that does not interpret backslash.
-# In particular, with Autoconf 2.60 or later we add some code to the start
-# of the generated configure script that will find a shell with a builtin
-# printf (that we can use as an echo command).
-m4_defun([_LT_PROG_ECHO_BACKSLASH],
-[ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
-ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
-
-AC_MSG_CHECKING([how to print strings])
-# Test print first, because it will be a builtin if present.
-if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \
- test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then
- ECHO='print -r --'
-elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then
- ECHO='printf %s\n'
-else
- # Use this function as a fallback that always works.
- func_fallback_echo ()
- {
- eval 'cat <<_LTECHO_EOF
-$[]1
-_LTECHO_EOF'
- }
- ECHO='func_fallback_echo'
-fi
-
-# func_echo_all arg...
-# Invoke $ECHO with all args, space-separated.
-func_echo_all ()
-{
- $ECHO "$*"
-}
-
-case $ECHO in
- printf*) AC_MSG_RESULT([printf]) ;;
- print*) AC_MSG_RESULT([print -r]) ;;
- *) AC_MSG_RESULT([cat]) ;;
-esac
-
-m4_ifdef([_AS_DETECT_SUGGESTED],
-[_AS_DETECT_SUGGESTED([
- test -n "${ZSH_VERSION+set}${BASH_VERSION+set}" || (
- ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
- ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
- ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
- PATH=/empty FPATH=/empty; export PATH FPATH
- test "X`printf %s $ECHO`" = "X$ECHO" \
- || test "X`print -r -- $ECHO`" = "X$ECHO" )])])
-
-_LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts])
-_LT_DECL([], [ECHO], [1], [An echo program that protects backslashes])
-])# _LT_PROG_ECHO_BACKSLASH
-
-
-# _LT_WITH_SYSROOT
-# ----------------
-AC_DEFUN([_LT_WITH_SYSROOT],
-[AC_MSG_CHECKING([for sysroot])
-AC_ARG_WITH([sysroot],
-[AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
- [Search for dependent libraries within DIR (or the compiler's sysroot
- if not specified).])],
-[], [with_sysroot=no])
-
-dnl lt_sysroot will always be passed unquoted. We quote it here
-dnl in case the user passed a directory name.
-lt_sysroot=
-case $with_sysroot in #(
- yes)
- if test yes = "$GCC"; then
- lt_sysroot=`$CC --print-sysroot 2>/dev/null`
- fi
- ;; #(
- /*)
- lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"`
- ;; #(
- no|'')
- ;; #(
- *)
- AC_MSG_RESULT([$with_sysroot])
- AC_MSG_ERROR([The sysroot must be an absolute path.])
- ;;
-esac
-
- AC_MSG_RESULT([${lt_sysroot:-no}])
-_LT_DECL([], [lt_sysroot], [0], [The root where to search for ]dnl
-[dependent libraries, and where our libraries should be installed.])])
-
-# _LT_ENABLE_LOCK
-# ---------------
-m4_defun([_LT_ENABLE_LOCK],
-[AC_ARG_ENABLE([libtool-lock],
- [AS_HELP_STRING([--disable-libtool-lock],
- [avoid locking (might break parallel builds)])])
-test no = "$enable_libtool_lock" || enable_libtool_lock=yes
-
-# Some flags need to be propagated to the compiler or linker for good
-# libtool support.
-case $host in
-ia64-*-hpux*)
- # Find out what ABI is being produced by ac_compile, and set mode
- # options accordingly.
- echo 'int i;' > conftest.$ac_ext
- if AC_TRY_EVAL(ac_compile); then
- case `/usr/bin/file conftest.$ac_objext` in
- *ELF-32*)
- HPUX_IA64_MODE=32
- ;;
- *ELF-64*)
- HPUX_IA64_MODE=64
- ;;
- esac
- fi
- rm -rf conftest*
- ;;
-*-*-irix6*)
- # Find out what ABI is being produced by ac_compile, and set linker
- # options accordingly.
- echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext
- if AC_TRY_EVAL(ac_compile); then
- if test yes = "$lt_cv_prog_gnu_ld"; then
- case `/usr/bin/file conftest.$ac_objext` in
- *32-bit*)
- LD="${LD-ld} -melf32bsmip"
- ;;
- *N32*)
- LD="${LD-ld} -melf32bmipn32"
- ;;
- *64-bit*)
- LD="${LD-ld} -melf64bmip"
- ;;
- esac
- else
- case `/usr/bin/file conftest.$ac_objext` in
- *32-bit*)
- LD="${LD-ld} -32"
- ;;
- *N32*)
- LD="${LD-ld} -n32"
- ;;
- *64-bit*)
- LD="${LD-ld} -64"
- ;;
- esac
- fi
- fi
- rm -rf conftest*
- ;;
-
-mips64*-*linux*)
- # Find out what ABI is being produced by ac_compile, and set linker
- # options accordingly.
- echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext
- if AC_TRY_EVAL(ac_compile); then
- emul=elf
- case `/usr/bin/file conftest.$ac_objext` in
- *32-bit*)
- emul="${emul}32"
- ;;
- *64-bit*)
- emul="${emul}64"
- ;;
- esac
- case `/usr/bin/file conftest.$ac_objext` in
- *MSB*)
- emul="${emul}btsmip"
- ;;
- *LSB*)
- emul="${emul}ltsmip"
- ;;
- esac
- case `/usr/bin/file conftest.$ac_objext` in
- *N32*)
- emul="${emul}n32"
- ;;
- esac
- LD="${LD-ld} -m $emul"
- fi
- rm -rf conftest*
- ;;
-
-x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
-s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
- # Find out what ABI is being produced by ac_compile, and set linker
- # options accordingly. Note that the listed cases only cover the
- # situations where additional linker options are needed (such as when
- # doing 32-bit compilation for a host where ld defaults to 64-bit, or
- # vice versa); the common cases where no linker options are needed do
- # not appear in the list.
- echo 'int i;' > conftest.$ac_ext
- if AC_TRY_EVAL(ac_compile); then
- case `/usr/bin/file conftest.o` in
- *32-bit*)
- case $host in
- x86_64-*kfreebsd*-gnu)
- LD="${LD-ld} -m elf_i386_fbsd"
- ;;
- x86_64-*linux*)
- case `/usr/bin/file conftest.o` in
- *x86-64*)
- LD="${LD-ld} -m elf32_x86_64"
- ;;
- *)
- LD="${LD-ld} -m elf_i386"
- ;;
- esac
- ;;
- powerpc64le-*linux*)
- LD="${LD-ld} -m elf32lppclinux"
- ;;
- powerpc64-*linux*)
- LD="${LD-ld} -m elf32ppclinux"
- ;;
- s390x-*linux*)
- LD="${LD-ld} -m elf_s390"
- ;;
- sparc64-*linux*)
- LD="${LD-ld} -m elf32_sparc"
- ;;
- esac
- ;;
- *64-bit*)
- case $host in
- x86_64-*kfreebsd*-gnu)
- LD="${LD-ld} -m elf_x86_64_fbsd"
- ;;
- x86_64-*linux*)
- LD="${LD-ld} -m elf_x86_64"
- ;;
- powerpcle-*linux*)
- LD="${LD-ld} -m elf64lppc"
- ;;
- powerpc-*linux*)
- LD="${LD-ld} -m elf64ppc"
- ;;
- s390*-*linux*|s390*-*tpf*)
- LD="${LD-ld} -m elf64_s390"
- ;;
- sparc*-*linux*)
- LD="${LD-ld} -m elf64_sparc"
- ;;
- esac
- ;;
- esac
- fi
- rm -rf conftest*
- ;;
-
-*-*-sco3.2v5*)
- # On SCO OpenServer 5, we need -belf to get full-featured binaries.
- SAVE_CFLAGS=$CFLAGS
- CFLAGS="$CFLAGS -belf"
- AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
- [AC_LANG_PUSH(C)
- AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
- AC_LANG_POP])
- if test yes != "$lt_cv_cc_needs_belf"; then
- # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
- CFLAGS=$SAVE_CFLAGS
- fi
- ;;
-*-*solaris*)
- # Find out what ABI is being produced by ac_compile, and set linker
- # options accordingly.
- echo 'int i;' > conftest.$ac_ext
- if AC_TRY_EVAL(ac_compile); then
- case `/usr/bin/file conftest.o` in
- *64-bit*)
- case $lt_cv_prog_gnu_ld in
- yes*)
- case $host in
- i?86-*-solaris*|x86_64-*-solaris*)
- LD="${LD-ld} -m elf_x86_64"
- ;;
- sparc*-*-solaris*)
- LD="${LD-ld} -m elf64_sparc"
- ;;
- esac
- # GNU ld 2.21 introduced _sol2 emulations. Use them if available.
- if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
- LD=${LD-ld}_sol2
- fi
- ;;
- *)
- if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
- LD="${LD-ld} -64"
- fi
- ;;
- esac
- ;;
- esac
- fi
- rm -rf conftest*
- ;;
-esac
-
-need_locks=$enable_libtool_lock
-])# _LT_ENABLE_LOCK
-
-
-# _LT_PROG_AR
-# -----------
-m4_defun([_LT_PROG_AR],
-[AC_CHECK_TOOLS(AR, [ar], false)
-: ${AR=ar}
-: ${AR_FLAGS=cru}
-_LT_DECL([], [AR], [1], [The archiver])
-_LT_DECL([], [AR_FLAGS], [1], [Flags to create an archive])
-
-AC_CACHE_CHECK([for archiver @FILE support], [lt_cv_ar_at_file],
- [lt_cv_ar_at_file=no
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM],
- [echo conftest.$ac_objext > conftest.lst
- lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&AS_MESSAGE_LOG_FD'
- AC_TRY_EVAL([lt_ar_try])
- if test 0 -eq "$ac_status"; then
- # Ensure the archiver fails upon bogus file names.
- rm -f conftest.$ac_objext libconftest.a
- AC_TRY_EVAL([lt_ar_try])
- if test 0 -ne "$ac_status"; then
- lt_cv_ar_at_file=@
- fi
- fi
- rm -f conftest.* libconftest.a
- ])
- ])
-
-if test no = "$lt_cv_ar_at_file"; then
- archiver_list_spec=
-else
- archiver_list_spec=$lt_cv_ar_at_file
-fi
-_LT_DECL([], [archiver_list_spec], [1],
- [How to feed a file listing to the archiver])
-])# _LT_PROG_AR
-
-
-# _LT_CMD_OLD_ARCHIVE
-# -------------------
-m4_defun([_LT_CMD_OLD_ARCHIVE],
-[_LT_PROG_AR
-
-AC_CHECK_TOOL(STRIP, strip, :)
-test -z "$STRIP" && STRIP=:
-_LT_DECL([], [STRIP], [1], [A symbol stripping program])
-
-AC_CHECK_TOOL(RANLIB, ranlib, :)
-test -z "$RANLIB" && RANLIB=:
-_LT_DECL([], [RANLIB], [1],
- [Commands used to install an old-style archive])
-
-# Determine commands to create old-style static archives.
-old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
-old_postinstall_cmds='chmod 644 $oldlib'
-old_postuninstall_cmds=
-
-if test -n "$RANLIB"; then
- case $host_os in
- bitrig* | openbsd*)
- old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
- ;;
- *)
- old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib"
- ;;
- esac
- old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib"
-fi
-
-case $host_os in
- darwin*)
- lock_old_archive_extraction=yes ;;
- *)
- lock_old_archive_extraction=no ;;
-esac
-_LT_DECL([], [old_postinstall_cmds], [2])
-_LT_DECL([], [old_postuninstall_cmds], [2])
-_LT_TAGDECL([], [old_archive_cmds], [2],
- [Commands used to build an old-style archive])
-_LT_DECL([], [lock_old_archive_extraction], [0],
- [Whether to use a lock for old archive extraction])
-])# _LT_CMD_OLD_ARCHIVE
-
-
-# _LT_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
-# [OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE])
-# ----------------------------------------------------------------
-# Check whether the given compiler option works
-AC_DEFUN([_LT_COMPILER_OPTION],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_SED])dnl
-AC_CACHE_CHECK([$1], [$2],
- [$2=no
- m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4])
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
- lt_compiler_flag="$3" ## exclude from sc_useless_quotes_in_assignment
- # Insert the option either (1) after the last *FLAGS variable, or
- # (2) before a word containing "conftest.", or (3) at the end.
- # Note that $ac_compile itself does not contain backslashes and begins
- # with a dollar sign (not a hyphen), so the echo should work correctly.
- # The option is referenced via a variable to avoid confusing sed.
- lt_compile=`echo "$ac_compile" | $SED \
- -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
- -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
- -e 's:$: $lt_compiler_flag:'`
- (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
- (eval "$lt_compile" 2>conftest.err)
- ac_status=$?
- cat conftest.err >&AS_MESSAGE_LOG_FD
- echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
- if (exit $ac_status) && test -s "$ac_outfile"; then
- # The compiler can only warn and ignore the option if not recognized
- # So say no if there are warnings other than the usual output.
- $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
- $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
- if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
- $2=yes
- fi
- fi
- $RM conftest*
-])
-
-if test yes = "[$]$2"; then
- m4_if([$5], , :, [$5])
-else
- m4_if([$6], , :, [$6])
-fi
-])# _LT_COMPILER_OPTION
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], [])
-
-
-# _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
-# [ACTION-SUCCESS], [ACTION-FAILURE])
-# ----------------------------------------------------
-# Check whether the given linker option works
-AC_DEFUN([_LT_LINKER_OPTION],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_SED])dnl
-AC_CACHE_CHECK([$1], [$2],
- [$2=no
- save_LDFLAGS=$LDFLAGS
- LDFLAGS="$LDFLAGS $3"
- echo "$lt_simple_link_test_code" > conftest.$ac_ext
- if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
- # The linker can only warn and ignore the option if not recognized
- # So say no if there are warnings
- if test -s conftest.err; then
- # Append any errors to the config.log.
- cat conftest.err 1>&AS_MESSAGE_LOG_FD
- $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
- $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
- if diff conftest.exp conftest.er2 >/dev/null; then
- $2=yes
- fi
- else
- $2=yes
- fi
- fi
- $RM -r conftest*
- LDFLAGS=$save_LDFLAGS
-])
-
-if test yes = "[$]$2"; then
- m4_if([$4], , :, [$4])
-else
- m4_if([$5], , :, [$5])
-fi
-])# _LT_LINKER_OPTION
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], [])
-
-
-# LT_CMD_MAX_LEN
-#---------------
-AC_DEFUN([LT_CMD_MAX_LEN],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-# find the maximum length of command line arguments
-AC_MSG_CHECKING([the maximum length of command line arguments])
-AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
- i=0
- teststring=ABCD
-
- case $build_os in
- msdosdjgpp*)
- # On DJGPP, this test can blow up pretty badly due to problems in libc
- # (any single argument exceeding 2000 bytes causes a buffer overrun
- # during glob expansion). Even if it were fixed, the result of this
- # check would be larger than it should be.
- lt_cv_sys_max_cmd_len=12288; # 12K is about right
- ;;
-
- gnu*)
- # Under GNU Hurd, this test is not required because there is
- # no limit to the length of command line arguments.
- # Libtool will interpret -1 as no limit whatsoever
- lt_cv_sys_max_cmd_len=-1;
- ;;
-
- cygwin* | mingw* | cegcc*)
- # On Win9x/ME, this test blows up -- it succeeds, but takes
- # about 5 minutes as the teststring grows exponentially.
- # Worse, since 9x/ME are not pre-emptively multitasking,
- # you end up with a "frozen" computer, even though with patience
- # the test eventually succeeds (with a max line length of 256k).
- # Instead, let's just punt: use the minimum linelength reported by
- # all of the supported platforms: 8192 (on NT/2K/XP).
- lt_cv_sys_max_cmd_len=8192;
- ;;
-
- mint*)
- # On MiNT this can take a long time and run out of memory.
- lt_cv_sys_max_cmd_len=8192;
- ;;
-
- amigaos*)
- # On AmigaOS with pdksh, this test takes hours, literally.
- # So we just punt and use a minimum line length of 8192.
- lt_cv_sys_max_cmd_len=8192;
- ;;
-
- bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*)
- # This has been around since 386BSD, at least. Likely further.
- if test -x /sbin/sysctl; then
- lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
- elif test -x /usr/sbin/sysctl; then
- lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
- else
- lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs
- fi
- # And add a safety zone
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
- ;;
-
- interix*)
- # We know the value 262144 and hardcode it with a safety zone (like BSD)
- lt_cv_sys_max_cmd_len=196608
- ;;
-
- os2*)
- # The test takes a long time on OS/2.
- lt_cv_sys_max_cmd_len=8192
- ;;
-
- osf*)
- # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
- # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
- # nice to cause kernel panics so lets avoid the loop below.
- # First set a reasonable default.
- lt_cv_sys_max_cmd_len=16384
- #
- if test -x /sbin/sysconfig; then
- case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
- *1*) lt_cv_sys_max_cmd_len=-1 ;;
- esac
- fi
- ;;
- sco3.2v5*)
- lt_cv_sys_max_cmd_len=102400
- ;;
- sysv5* | sco5v6* | sysv4.2uw2*)
- kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
- if test -n "$kargmax"; then
- lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[ ]]//'`
- else
- lt_cv_sys_max_cmd_len=32768
- fi
- ;;
- *)
- lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
- if test -n "$lt_cv_sys_max_cmd_len" && \
- test undefined != "$lt_cv_sys_max_cmd_len"; then
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
- else
- # Make teststring a little bigger before we do anything with it.
- # a 1K string should be a reasonable start.
- for i in 1 2 3 4 5 6 7 8; do
- teststring=$teststring$teststring
- done
- SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
- # If test is not a shell built-in, we'll probably end up computing a
- # maximum length that is only half of the actual maximum length, but
- # we can't tell.
- while { test X`env echo "$teststring$teststring" 2>/dev/null` \
- = "X$teststring$teststring"; } >/dev/null 2>&1 &&
- test 17 != "$i" # 1/2 MB should be enough
- do
- i=`expr $i + 1`
- teststring=$teststring$teststring
- done
- # Only check the string length outside the loop.
- lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
- teststring=
- # Add a significant safety factor because C++ compilers can tack on
- # massive amounts of additional arguments before passing them to the
- # linker. It appears as though 1/2 is a usable value.
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
- fi
- ;;
- esac
-])
-if test -n "$lt_cv_sys_max_cmd_len"; then
- AC_MSG_RESULT($lt_cv_sys_max_cmd_len)
-else
- AC_MSG_RESULT(none)
-fi
-max_cmd_len=$lt_cv_sys_max_cmd_len
-_LT_DECL([], [max_cmd_len], [0],
- [What is the maximum length of a command?])
-])# LT_CMD_MAX_LEN
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], [])
-
-
-# _LT_HEADER_DLFCN
-# ----------------
-m4_defun([_LT_HEADER_DLFCN],
-[AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl
-])# _LT_HEADER_DLFCN
-
-
-# _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE,
-# ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING)
-# ----------------------------------------------------------------
-m4_defun([_LT_TRY_DLOPEN_SELF],
-[m4_require([_LT_HEADER_DLFCN])dnl
-if test yes = "$cross_compiling"; then :
- [$4]
-else
- lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
- lt_status=$lt_dlunknown
- cat > conftest.$ac_ext <<_LT_EOF
-[#line $LINENO "configure"
-#include "confdefs.h"
-
-#if HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-
-#include <stdio.h>
-
-#ifdef RTLD_GLOBAL
-# define LT_DLGLOBAL RTLD_GLOBAL
-#else
-# ifdef DL_GLOBAL
-# define LT_DLGLOBAL DL_GLOBAL
-# else
-# define LT_DLGLOBAL 0
-# endif
-#endif
-
-/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
- find out it does not work in some platform. */
-#ifndef LT_DLLAZY_OR_NOW
-# ifdef RTLD_LAZY
-# define LT_DLLAZY_OR_NOW RTLD_LAZY
-# else
-# ifdef DL_LAZY
-# define LT_DLLAZY_OR_NOW DL_LAZY
-# else
-# ifdef RTLD_NOW
-# define LT_DLLAZY_OR_NOW RTLD_NOW
-# else
-# ifdef DL_NOW
-# define LT_DLLAZY_OR_NOW DL_NOW
-# else
-# define LT_DLLAZY_OR_NOW 0
-# endif
-# endif
-# endif
-# endif
-#endif
-
-/* When -fvisibility=hidden is used, assume the code has been annotated
- correspondingly for the symbols needed. */
-#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
-int fnord () __attribute__((visibility("default")));
-#endif
-
-int fnord () { return 42; }
-int main ()
-{
- void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
- int status = $lt_dlunknown;
-
- if (self)
- {
- if (dlsym (self,"fnord")) status = $lt_dlno_uscore;
- else
- {
- if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
- else puts (dlerror ());
- }
- /* dlclose (self); */
- }
- else
- puts (dlerror ());
-
- return status;
-}]
-_LT_EOF
- if AC_TRY_EVAL(ac_link) && test -s "conftest$ac_exeext" 2>/dev/null; then
- (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null
- lt_status=$?
- case x$lt_status in
- x$lt_dlno_uscore) $1 ;;
- x$lt_dlneed_uscore) $2 ;;
- x$lt_dlunknown|x*) $3 ;;
- esac
- else :
- # compilation failed
- $3
- fi
-fi
-rm -fr conftest*
-])# _LT_TRY_DLOPEN_SELF
-
-
-# LT_SYS_DLOPEN_SELF
-# ------------------
-AC_DEFUN([LT_SYS_DLOPEN_SELF],
-[m4_require([_LT_HEADER_DLFCN])dnl
-if test yes != "$enable_dlopen"; then
- enable_dlopen=unknown
- enable_dlopen_self=unknown
- enable_dlopen_self_static=unknown
-else
- lt_cv_dlopen=no
- lt_cv_dlopen_libs=
-
- case $host_os in
- beos*)
- lt_cv_dlopen=load_add_on
- lt_cv_dlopen_libs=
- lt_cv_dlopen_self=yes
- ;;
-
- mingw* | pw32* | cegcc*)
- lt_cv_dlopen=LoadLibrary
- lt_cv_dlopen_libs=
- ;;
-
- cygwin*)
- lt_cv_dlopen=dlopen
- lt_cv_dlopen_libs=
- ;;
-
- darwin*)
- # if libdl is installed we need to link against it
- AC_CHECK_LIB([dl], [dlopen],
- [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],[
- lt_cv_dlopen=dyld
- lt_cv_dlopen_libs=
- lt_cv_dlopen_self=yes
- ])
- ;;
-
- tpf*)
- # Don't try to run any link tests for TPF. We know it's impossible
- # because TPF is a cross-compiler, and we know how we open DSOs.
- lt_cv_dlopen=dlopen
- lt_cv_dlopen_libs=
- lt_cv_dlopen_self=no
- ;;
-
- *)
- AC_CHECK_FUNC([shl_load],
- [lt_cv_dlopen=shl_load],
- [AC_CHECK_LIB([dld], [shl_load],
- [lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld],
- [AC_CHECK_FUNC([dlopen],
- [lt_cv_dlopen=dlopen],
- [AC_CHECK_LIB([dl], [dlopen],
- [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],
- [AC_CHECK_LIB([svld], [dlopen],
- [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld],
- [AC_CHECK_LIB([dld], [dld_link],
- [lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld])
- ])
- ])
- ])
- ])
- ])
- ;;
- esac
-
- if test no = "$lt_cv_dlopen"; then
- enable_dlopen=no
- else
- enable_dlopen=yes
- fi
-
- case $lt_cv_dlopen in
- dlopen)
- save_CPPFLAGS=$CPPFLAGS
- test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
-
- save_LDFLAGS=$LDFLAGS
- wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
-
- save_LIBS=$LIBS
- LIBS="$lt_cv_dlopen_libs $LIBS"
-
- AC_CACHE_CHECK([whether a program can dlopen itself],
- lt_cv_dlopen_self, [dnl
- _LT_TRY_DLOPEN_SELF(
- lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes,
- lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross)
- ])
-
- if test yes = "$lt_cv_dlopen_self"; then
- wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
- AC_CACHE_CHECK([whether a statically linked program can dlopen itself],
- lt_cv_dlopen_self_static, [dnl
- _LT_TRY_DLOPEN_SELF(
- lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes,
- lt_cv_dlopen_self_static=no, lt_cv_dlopen_self_static=cross)
- ])
- fi
-
- CPPFLAGS=$save_CPPFLAGS
- LDFLAGS=$save_LDFLAGS
- LIBS=$save_LIBS
- ;;
- esac
-
- case $lt_cv_dlopen_self in
- yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
- *) enable_dlopen_self=unknown ;;
- esac
-
- case $lt_cv_dlopen_self_static in
- yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
- *) enable_dlopen_self_static=unknown ;;
- esac
-fi
-_LT_DECL([dlopen_support], [enable_dlopen], [0],
- [Whether dlopen is supported])
-_LT_DECL([dlopen_self], [enable_dlopen_self], [0],
- [Whether dlopen of programs is supported])
-_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0],
- [Whether dlopen of statically linked programs is supported])
-])# LT_SYS_DLOPEN_SELF
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], [])
-
-
-# _LT_COMPILER_C_O([TAGNAME])
-# ---------------------------
-# Check to see if options -c and -o are simultaneously supported by compiler.
-# This macro does not hard code the compiler like AC_PROG_CC_C_O.
-m4_defun([_LT_COMPILER_C_O],
-[m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_TAG_COMPILER])dnl
-AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],
- [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)],
- [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no
- $RM -r conftest 2>/dev/null
- mkdir conftest
- cd conftest
- mkdir out
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
- lt_compiler_flag="-o out/conftest2.$ac_objext"
- # Insert the option either (1) after the last *FLAGS variable, or
- # (2) before a word containing "conftest.", or (3) at the end.
- # Note that $ac_compile itself does not contain backslashes and begins
- # with a dollar sign (not a hyphen), so the echo should work correctly.
- lt_compile=`echo "$ac_compile" | $SED \
- -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
- -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
- -e 's:$: $lt_compiler_flag:'`
- (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
- (eval "$lt_compile" 2>out/conftest.err)
- ac_status=$?
- cat out/conftest.err >&AS_MESSAGE_LOG_FD
- echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
- if (exit $ac_status) && test -s out/conftest2.$ac_objext
- then
- # The compiler can only warn and ignore the option if not recognized
- # So say no if there are warnings
- $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
- $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
- if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
- _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
- fi
- fi
- chmod u+w . 2>&AS_MESSAGE_LOG_FD
- $RM conftest*
- # SGI C++ compiler will create directory out/ii_files/ for
- # template instantiation
- test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
- $RM out/* && rmdir out
- cd ..
- $RM -r conftest
- $RM conftest*
-])
-_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1],
- [Does compiler simultaneously support -c and -o options?])
-])# _LT_COMPILER_C_O
-
-
-# _LT_COMPILER_FILE_LOCKS([TAGNAME])
-# ----------------------------------
-# Check to see if we can do hard links to lock some files if needed
-m4_defun([_LT_COMPILER_FILE_LOCKS],
-[m4_require([_LT_ENABLE_LOCK])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-_LT_COMPILER_C_O([$1])
-
-hard_links=nottested
-if test no = "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" && test no != "$need_locks"; then
- # do not overwrite the value of need_locks provided by the user
- AC_MSG_CHECKING([if we can lock with hard links])
- hard_links=yes
- $RM conftest*
- ln conftest.a conftest.b 2>/dev/null && hard_links=no
- touch conftest.a
- ln conftest.a conftest.b 2>&5 || hard_links=no
- ln conftest.a conftest.b 2>/dev/null && hard_links=no
- AC_MSG_RESULT([$hard_links])
- if test no = "$hard_links"; then
- AC_MSG_WARN(['$CC' does not support '-c -o', so 'make -j' may be unsafe])
- need_locks=warn
- fi
-else
- need_locks=no
-fi
-_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?])
-])# _LT_COMPILER_FILE_LOCKS
-
-
-# _LT_CHECK_OBJDIR
-# ----------------
-m4_defun([_LT_CHECK_OBJDIR],
-[AC_CACHE_CHECK([for objdir], [lt_cv_objdir],
-[rm -f .libs 2>/dev/null
-mkdir .libs 2>/dev/null
-if test -d .libs; then
- lt_cv_objdir=.libs
-else
- # MS-DOS does not allow filenames that begin with a dot.
- lt_cv_objdir=_libs
-fi
-rmdir .libs 2>/dev/null])
-objdir=$lt_cv_objdir
-_LT_DECL([], [objdir], [0],
- [The name of the directory that contains temporary libtool files])dnl
-m4_pattern_allow([LT_OBJDIR])dnl
-AC_DEFINE_UNQUOTED([LT_OBJDIR], "$lt_cv_objdir/",
- [Define to the sub-directory where libtool stores uninstalled libraries.])
-])# _LT_CHECK_OBJDIR
-
-
-# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME])
-# --------------------------------------
-# Check hardcoding attributes.
-m4_defun([_LT_LINKER_HARDCODE_LIBPATH],
-[AC_MSG_CHECKING([how to hardcode library paths into programs])
-_LT_TAGVAR(hardcode_action, $1)=
-if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" ||
- test -n "$_LT_TAGVAR(runpath_var, $1)" ||
- test yes = "$_LT_TAGVAR(hardcode_automatic, $1)"; then
-
- # We can hardcode non-existent directories.
- if test no != "$_LT_TAGVAR(hardcode_direct, $1)" &&
- # If the only mechanism to avoid hardcoding is shlibpath_var, we
- # have to relink, otherwise we might link with an installed library
- # when we should be linking with a yet-to-be-installed one
- ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" &&
- test no != "$_LT_TAGVAR(hardcode_minus_L, $1)"; then
- # Linking always hardcodes the temporary library directory.
- _LT_TAGVAR(hardcode_action, $1)=relink
- else
- # We can link without hardcoding, and we can hardcode nonexisting dirs.
- _LT_TAGVAR(hardcode_action, $1)=immediate
- fi
-else
- # We cannot hardcode anything, or else we can only hardcode existing
- # directories.
- _LT_TAGVAR(hardcode_action, $1)=unsupported
-fi
-AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)])
-
-if test relink = "$_LT_TAGVAR(hardcode_action, $1)" ||
- test yes = "$_LT_TAGVAR(inherit_rpath, $1)"; then
- # Fast installation is not supported
- enable_fast_install=no
-elif test yes = "$shlibpath_overrides_runpath" ||
- test no = "$enable_shared"; then
- # Fast installation is not necessary
- enable_fast_install=needless
-fi
-_LT_TAGDECL([], [hardcode_action], [0],
- [How to hardcode a shared library path into an executable])
-])# _LT_LINKER_HARDCODE_LIBPATH
-
-
-# _LT_CMD_STRIPLIB
-# ----------------
-m4_defun([_LT_CMD_STRIPLIB],
-[m4_require([_LT_DECL_EGREP])
-striplib=
-old_striplib=
-AC_MSG_CHECKING([whether stripping libraries is possible])
-if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
- test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
- test -z "$striplib" && striplib="$STRIP --strip-unneeded"
- AC_MSG_RESULT([yes])
-else
-# FIXME - insert some real tests, host_os isn't really good enough
- case $host_os in
- darwin*)
- if test -n "$STRIP"; then
- striplib="$STRIP -x"
- old_striplib="$STRIP -S"
- AC_MSG_RESULT([yes])
- else
- AC_MSG_RESULT([no])
- fi
- ;;
- *)
- AC_MSG_RESULT([no])
- ;;
- esac
-fi
-_LT_DECL([], [old_striplib], [1], [Commands to strip libraries])
-_LT_DECL([], [striplib], [1])
-])# _LT_CMD_STRIPLIB
-
-
-# _LT_PREPARE_MUNGE_PATH_LIST
-# ---------------------------
-# Make sure func_munge_path_list() is defined correctly.
-m4_defun([_LT_PREPARE_MUNGE_PATH_LIST],
-[[# func_munge_path_list VARIABLE PATH
-# -----------------------------------
-# VARIABLE is name of variable containing _space_ separated list of
-# directories to be munged by the contents of PATH, which is string
-# having a format:
-# "DIR[:DIR]:"
-# string "DIR[ DIR]" will be prepended to VARIABLE
-# ":DIR[:DIR]"
-# string "DIR[ DIR]" will be appended to VARIABLE
-# "DIRP[:DIRP]::[DIRA:]DIRA"
-# string "DIRP[ DIRP]" will be prepended to VARIABLE and string
-# "DIRA[ DIRA]" will be appended to VARIABLE
-# "DIR[:DIR]"
-# VARIABLE will be replaced by "DIR[ DIR]"
-func_munge_path_list ()
-{
- case x@S|@2 in
- x)
- ;;
- *:)
- eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'` \@S|@@S|@1\"
- ;;
- x:*)
- eval @S|@1=\"\@S|@@S|@1 `$ECHO @S|@2 | $SED 's/:/ /g'`\"
- ;;
- *::*)
- eval @S|@1=\"\@S|@@S|@1\ `$ECHO @S|@2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
- eval @S|@1=\"`$ECHO @S|@2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \@S|@@S|@1\"
- ;;
- *)
- eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'`\"
- ;;
- esac
-}
-]])# _LT_PREPARE_PATH_LIST
-
-
-# _LT_SYS_DYNAMIC_LINKER([TAG])
-# -----------------------------
-# PORTME Fill in your ld.so characteristics
-m4_defun([_LT_SYS_DYNAMIC_LINKER],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-m4_require([_LT_DECL_EGREP])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_OBJDUMP])dnl
-m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_CHECK_SHELL_FEATURES])dnl
-m4_require([_LT_PREPARE_MUNGE_PATH_LIST])dnl
-AC_MSG_CHECKING([dynamic linker characteristics])
-m4_if([$1],
- [], [
-if test yes = "$GCC"; then
- case $host_os in
- darwin*) lt_awk_arg='/^libraries:/,/LR/' ;;
- *) lt_awk_arg='/^libraries:/' ;;
- esac
- case $host_os in
- mingw* | cegcc*) lt_sed_strip_eq='s|=\([[A-Za-z]]:\)|\1|g' ;;
- *) lt_sed_strip_eq='s|=/|/|g' ;;
- esac
- lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
- case $lt_search_path_spec in
- *\;*)
- # if the path contains ";" then we assume it to be the separator
- # otherwise default to the standard path separator (i.e. ":") - it is
- # assumed that no part of a normal pathname contains ";" but that should
- # okay in the real world where ";" in dirpaths is itself problematic.
- lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
- ;;
- *)
- lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
- ;;
- esac
- # Ok, now we have the path, separated by spaces, we can step through it
- # and add multilib dir if necessary...
- lt_tmp_lt_search_path_spec=
- lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
- # ...but if some path component already ends with the multilib dir we assume
- # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer).
- case "$lt_multi_os_dir; $lt_search_path_spec " in
- "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*)
- lt_multi_os_dir=
- ;;
- esac
- for lt_sys_path in $lt_search_path_spec; do
- if test -d "$lt_sys_path$lt_multi_os_dir"; then
- lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir"
- elif test -n "$lt_multi_os_dir"; then
- test -d "$lt_sys_path" && \
- lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
- fi
- done
- lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
-BEGIN {RS = " "; FS = "/|\n";} {
- lt_foo = "";
- lt_count = 0;
- for (lt_i = NF; lt_i > 0; lt_i--) {
- if ($lt_i != "" && $lt_i != ".") {
- if ($lt_i == "..") {
- lt_count++;
- } else {
- if (lt_count == 0) {
- lt_foo = "/" $lt_i lt_foo;
- } else {
- lt_count--;
- }
- }
- }
- }
- if (lt_foo != "") { lt_freq[[lt_foo]]++; }
- if (lt_freq[[lt_foo]] == 1) { print lt_foo; }
-}'`
- # AWK program above erroneously prepends '/' to C:/dos/paths
- # for these hosts.
- case $host_os in
- mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
- $SED 's|/\([[A-Za-z]]:\)|\1|g'` ;;
- esac
- sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
-else
- sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
-fi])
-library_names_spec=
-libname_spec='lib$name'
-soname_spec=
-shrext_cmds=.so
-postinstall_cmds=
-postuninstall_cmds=
-finish_cmds=
-finish_eval=
-shlibpath_var=
-shlibpath_overrides_runpath=unknown
-version_type=none
-dynamic_linker="$host_os ld.so"
-sys_lib_dlsearch_path_spec="/lib /usr/lib"
-need_lib_prefix=unknown
-hardcode_into_libs=no
-
-# when you set need_version to no, make sure it does not cause -set_version
-# flags to be left without arguments
-need_version=unknown
-
-AC_ARG_VAR([LT_SYS_LIBRARY_PATH],
-[User-defined run-time library search path.])
-
-case $host_os in
-aix3*)
- version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
- shlibpath_var=LIBPATH
-
- # AIX 3 has no versioning support, so we append a major version to the name.
- soname_spec='$libname$release$shared_ext$major'
- ;;
-
-aix[[4-9]]*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- hardcode_into_libs=yes
- if test ia64 = "$host_cpu"; then
- # AIX 5 supports IA64
- library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
- shlibpath_var=LD_LIBRARY_PATH
- else
- # With GCC up to 2.95.x, collect2 would create an import file
- # for dependence libraries. The import file would start with
- # the line '#! .'. This would cause the generated library to
- # depend on '.', always an invalid library. This was fixed in
- # development snapshots of GCC prior to 3.0.
- case $host_os in
- aix4 | aix4.[[01]] | aix4.[[01]].*)
- if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
- echo ' yes '
- echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
- :
- else
- can_build_shared=no
- fi
- ;;
- esac
- # Using Import Files as archive members, it is possible to support
- # filename-based versioning of shared library archives on AIX. While
- # this would work for both with and without runtime linking, it will
- # prevent static linking of such archives. So we do filename-based
- # shared library versioning with .so extension only, which is used
- # when both runtime linking and shared linking is enabled.
- # Unfortunately, runtime linking may impact performance, so we do
- # not want this to be the default eventually. Also, we use the
- # versioned .so libs for executables only if there is the -brtl
- # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
- # To allow for filename-based versioning support, we need to create
- # libNAME.so.V as an archive file, containing:
- # *) an Import File, referring to the versioned filename of the
- # archive as well as the shared archive member, telling the
- # bitwidth (32 or 64) of that shared object, and providing the
- # list of exported symbols of that shared object, eventually
- # decorated with the 'weak' keyword
- # *) the shared object with the F_LOADONLY flag set, to really avoid
- # it being seen by the linker.
- # At run time we better use the real file rather than another symlink,
- # but for link time we create the symlink libNAME.so -> libNAME.so.V
-
- case $with_aix_soname,$aix_use_runtimelinking in
- # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
- # soname into executable. Probably we can add versioning support to
- # collect2, so additional links can be useful in future.
- aix,yes) # traditional libtool
- dynamic_linker='AIX unversionable lib.so'
- # If using run time linking (on AIX 4.2 or later) use lib<name>.so
- # instead of lib<name>.a to let people know that these are not
- # typical AIX shared libraries.
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- ;;
- aix,no) # traditional AIX only
- dynamic_linker='AIX lib.a[(]lib.so.V[)]'
- # We preserve .a as extension for shared libraries through AIX4.2
- # and later when we are not doing run time linking.
- library_names_spec='$libname$release.a $libname.a'
- soname_spec='$libname$release$shared_ext$major'
- ;;
- svr4,*) # full svr4 only
- dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)]"
- library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
- # We do not specify a path in Import Files, so LIBPATH fires.
- shlibpath_overrides_runpath=yes
- ;;
- *,yes) # both, prefer svr4
- dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)], lib.a[(]lib.so.V[)]"
- library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
- # unpreferred sharedlib libNAME.a needs extra handling
- postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
- postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
- # We do not specify a path in Import Files, so LIBPATH fires.
- shlibpath_overrides_runpath=yes
- ;;
- *,no) # both, prefer aix
- dynamic_linker="AIX lib.a[(]lib.so.V[)], lib.so.V[(]$shared_archive_member_spec.o[)]"
- library_names_spec='$libname$release.a $libname.a'
- soname_spec='$libname$release$shared_ext$major'
- # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
- postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
- postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
- ;;
- esac
- shlibpath_var=LIBPATH
- fi
- ;;
-
-amigaos*)
- case $host_cpu in
- powerpc)
- # Since July 2007 AmigaOS4 officially supports .so libraries.
- # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- ;;
- m68k)
- library_names_spec='$libname.ixlibrary $libname.a'
- # Create ${libname}_ixlibrary.a entries in /sys/libs.
- finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
- ;;
- esac
- ;;
-
-beos*)
- library_names_spec='$libname$shared_ext'
- dynamic_linker="$host_os ld.so"
- shlibpath_var=LIBRARY_PATH
- ;;
-
-bsdi[[45]]*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
- sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
- # the default ld.so.conf also contains /usr/contrib/lib and
- # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
- # libtool to hard-code these into programs
- ;;
-
-cygwin* | mingw* | pw32* | cegcc*)
- version_type=windows
- shrext_cmds=.dll
- need_version=no
- need_lib_prefix=no
-
- case $GCC,$cc_basename in
- yes,*)
- # gcc
- library_names_spec='$libname.dll.a'
- # DLL is installed to $(libdir)/../bin by postinstall_cmds
- postinstall_cmds='base_file=`basename \$file`~
- dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
- dldir=$destdir/`dirname \$dlpath`~
- test -d \$dldir || mkdir -p \$dldir~
- $install_prog $dir/$dlname \$dldir/$dlname~
- chmod a+x \$dldir/$dlname~
- if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
- eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
- fi'
- postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
- dlpath=$dir/\$dldll~
- $RM \$dlpath'
- shlibpath_overrides_runpath=yes
-
- case $host_os in
- cygwin*)
- # Cygwin DLLs use 'cyg' prefix rather than 'lib'
- soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
-m4_if([$1], [],[
- sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"])
- ;;
- mingw* | cegcc*)
- # MinGW DLLs use traditional 'lib' prefix
- soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
- ;;
- pw32*)
- # pw32 DLLs use 'pw' prefix rather than 'lib'
- library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
- ;;
- esac
- dynamic_linker='Win32 ld.exe'
- ;;
-
- *,cl*)
- # Native MSVC
- libname_spec='$name'
- soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
- library_names_spec='$libname.dll.lib'
-
- case $build_os in
- mingw*)
- sys_lib_search_path_spec=
- lt_save_ifs=$IFS
- IFS=';'
- for lt_path in $LIB
- do
- IFS=$lt_save_ifs
- # Let DOS variable expansion print the short 8.3 style file name.
- lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
- sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
- done
- IFS=$lt_save_ifs
- # Convert to MSYS style.
- sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([[a-zA-Z]]\\):| /\\1|g' -e 's|^ ||'`
- ;;
- cygwin*)
- # Convert to unix form, then to dos form, then back to unix form
- # but this time dos style (no spaces!) so that the unix form looks
- # like /cygdrive/c/PROGRA~1:/cygdr...
- sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
- sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
- sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
- ;;
- *)
- sys_lib_search_path_spec=$LIB
- if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then
- # It is most probably a Windows format PATH.
- sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
- else
- sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
- fi
- # FIXME: find the short name or the path components, as spaces are
- # common. (e.g. "Program Files" -> "PROGRA~1")
- ;;
- esac
-
- # DLL is installed to $(libdir)/../bin by postinstall_cmds
- postinstall_cmds='base_file=`basename \$file`~
- dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
- dldir=$destdir/`dirname \$dlpath`~
- test -d \$dldir || mkdir -p \$dldir~
- $install_prog $dir/$dlname \$dldir/$dlname'
- postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
- dlpath=$dir/\$dldll~
- $RM \$dlpath'
- shlibpath_overrides_runpath=yes
- dynamic_linker='Win32 link.exe'
- ;;
-
- *)
- # Assume MSVC wrapper
- library_names_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext $libname.lib'
- dynamic_linker='Win32 ld.exe'
- ;;
- esac
- # FIXME: first we should search . and the directory the executable is in
- shlibpath_var=PATH
- ;;
-
-darwin* | rhapsody*)
- dynamic_linker="$host_os dyld"
- version_type=darwin
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
- soname_spec='$libname$release$major$shared_ext'
- shlibpath_overrides_runpath=yes
- shlibpath_var=DYLD_LIBRARY_PATH
- shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
-m4_if([$1], [],[
- sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"])
- sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
- ;;
-
-dgux*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- shlibpath_var=LD_LIBRARY_PATH
- ;;
-
-freebsd* | dragonfly*)
- # DragonFly does not have aout. When/if they implement a new
- # versioning mechanism, adjust this.
- if test -x /usr/bin/objformat; then
- objformat=`/usr/bin/objformat`
- else
- case $host_os in
- freebsd[[23]].*) objformat=aout ;;
- *) objformat=elf ;;
- esac
- fi
- version_type=freebsd-$objformat
- case $version_type in
- freebsd-elf*)
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- need_version=no
- need_lib_prefix=no
- ;;
- freebsd-*)
- library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
- need_version=yes
- ;;
- esac
- shlibpath_var=LD_LIBRARY_PATH
- case $host_os in
- freebsd2.*)
- shlibpath_overrides_runpath=yes
- ;;
- freebsd3.[[01]]* | freebsdelf3.[[01]]*)
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- ;;
- freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \
- freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1)
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
- *) # from 4.6 on, and DragonFly
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- ;;
- esac
- ;;
-
-haiku*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- dynamic_linker="$host_os runtime_loader"
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- shlibpath_var=LIBRARY_PATH
- shlibpath_overrides_runpath=no
- sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
- hardcode_into_libs=yes
- ;;
-
-hpux9* | hpux10* | hpux11*)
- # Give a soname corresponding to the major version so that dld.sl refuses to
- # link against other versions.
- version_type=sunos
- need_lib_prefix=no
- need_version=no
- case $host_cpu in
- ia64*)
- shrext_cmds='.so'
- hardcode_into_libs=yes
- dynamic_linker="$host_os dld.so"
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- if test 32 = "$HPUX_IA64_MODE"; then
- sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
- sys_lib_dlsearch_path_spec=/usr/lib/hpux32
- else
- sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
- sys_lib_dlsearch_path_spec=/usr/lib/hpux64
- fi
- ;;
- hppa*64*)
- shrext_cmds='.sl'
- hardcode_into_libs=yes
- dynamic_linker="$host_os dld.sl"
- shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
- shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
- sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
- ;;
- *)
- shrext_cmds='.sl'
- dynamic_linker="$host_os dld.sl"
- shlibpath_var=SHLIB_PATH
- shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- ;;
- esac
- # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
- postinstall_cmds='chmod 555 $lib'
- # or fails outright, so override atomically:
- install_override_mode=555
- ;;
-
-interix[[3-9]]*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
-
-irix5* | irix6* | nonstopux*)
- case $host_os in
- nonstopux*) version_type=nonstopux ;;
- *)
- if test yes = "$lt_cv_prog_gnu_ld"; then
- version_type=linux # correct to gnu/linux during the next big refactor
- else
- version_type=irix
- fi ;;
- esac
- need_lib_prefix=no
- need_version=no
- soname_spec='$libname$release$shared_ext$major'
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
- case $host_os in
- irix5* | nonstopux*)
- libsuff= shlibsuff=
- ;;
- *)
- case $LD in # libtool.m4 will add one of these switches to LD
- *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
- libsuff= shlibsuff= libmagic=32-bit;;
- *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
- libsuff=32 shlibsuff=N32 libmagic=N32;;
- *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
- libsuff=64 shlibsuff=64 libmagic=64-bit;;
- *) libsuff= shlibsuff= libmagic=never-match;;
- esac
- ;;
- esac
- shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
- shlibpath_overrides_runpath=no
- sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
- sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
- hardcode_into_libs=yes
- ;;
-
-# No shared lib support for Linux oldld, aout, or coff.
-linux*oldld* | linux*aout* | linux*coff*)
- dynamic_linker=no
- ;;
-
-linux*android*)
- version_type=none # Android doesn't support versioned libraries.
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext'
- soname_spec='$libname$release$shared_ext'
- finish_cmds=
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
-
- # This implies no fast_install, which is unacceptable.
- # Some rework will be needed to allow for fast_install
- # before this can be enabled.
- hardcode_into_libs=yes
-
- dynamic_linker='Android linker'
- # Don't embed -rpath directories since the linker doesn't support them.
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- ;;
-
-# This must be glibc/ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
-
- # Some binutils ld are patched to set DT_RUNPATH
- AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath],
- [lt_cv_shlibpath_overrides_runpath=no
- save_LDFLAGS=$LDFLAGS
- save_libdir=$libdir
- eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \
- LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\""
- AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
- [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null],
- [lt_cv_shlibpath_overrides_runpath=yes])])
- LDFLAGS=$save_LDFLAGS
- libdir=$save_libdir
- ])
- shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
-
- # This implies no fast_install, which is unacceptable.
- # Some rework will be needed to allow for fast_install
- # before this can be enabled.
- hardcode_into_libs=yes
-
- # Ideally, we could use ldconfig to report *all* directores which are
- # searched for libraries, however this is still not possible. Aside from not
- # being certain /sbin/ldconfig is available, command
- # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
- # even though it is searched at run-time. Try to do the best guess by
- # appending ld.so.conf contents (and includes) to the search path.
- if test -f /etc/ld.so.conf; then
- lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
- sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
- fi
-
- # We used to test for /lib/ld.so.1 and disable shared libraries on
- # powerpc, because MkLinux only supported shared libraries with the
- # GNU dynamic linker. Since this was broken with cross compilers,
- # most powerpc-linux boxes support dynamic linking these days and
- # people can always --disable-shared, the test was removed, and we
- # assume the GNU/Linux dynamic linker is in use.
- dynamic_linker='GNU/Linux ld.so'
- ;;
-
-netbsd*)
- version_type=sunos
- need_lib_prefix=no
- need_version=no
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
- dynamic_linker='NetBSD (a.out) ld.so'
- else
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- dynamic_linker='NetBSD ld.elf_so'
- fi
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- ;;
-
-newsos6)
- version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- ;;
-
-*nto* | *qnx*)
- version_type=qnx
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- dynamic_linker='ldqnx.so'
- ;;
-
-openbsd* | bitrig*)
- version_type=sunos
- sys_lib_dlsearch_path_spec=/usr/lib
- need_lib_prefix=no
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
- need_version=no
- else
- need_version=yes
- fi
- library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- ;;
-
-os2*)
- libname_spec='$name'
- version_type=windows
- shrext_cmds=.dll
- need_version=no
- need_lib_prefix=no
- # OS/2 can only load a DLL with a base name of 8 characters or less.
- soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
- v=$($ECHO $release$versuffix | tr -d .-);
- n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
- $ECHO $n$v`$shared_ext'
- library_names_spec='${libname}_dll.$libext'
- dynamic_linker='OS/2 ld.exe'
- shlibpath_var=BEGINLIBPATH
- sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
- sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
- postinstall_cmds='base_file=`basename \$file`~
- dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
- dldir=$destdir/`dirname \$dlpath`~
- test -d \$dldir || mkdir -p \$dldir~
- $install_prog $dir/$dlname \$dldir/$dlname~
- chmod a+x \$dldir/$dlname~
- if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
- eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
- fi'
- postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
- dlpath=$dir/\$dldll~
- $RM \$dlpath'
- ;;
-
-osf3* | osf4* | osf5*)
- version_type=osf
- need_lib_prefix=no
- need_version=no
- soname_spec='$libname$release$shared_ext$major'
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- shlibpath_var=LD_LIBRARY_PATH
- sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
- sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
- ;;
-
-rdos*)
- dynamic_linker=no
- ;;
-
-solaris*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- # ldd complains unless libraries are executable
- postinstall_cmds='chmod +x $lib'
- ;;
-
-sunos4*)
- version_type=sunos
- library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
- finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- if test yes = "$with_gnu_ld"; then
- need_lib_prefix=no
- fi
- need_version=yes
- ;;
-
-sysv4 | sysv4.3*)
- version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- shlibpath_var=LD_LIBRARY_PATH
- case $host_vendor in
- sni)
- shlibpath_overrides_runpath=no
- need_lib_prefix=no
- runpath_var=LD_RUN_PATH
- ;;
- siemens)
- need_lib_prefix=no
- ;;
- motorola)
- need_lib_prefix=no
- need_version=no
- shlibpath_overrides_runpath=no
- sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
- ;;
- esac
- ;;
-
-sysv4*MP*)
- if test -d /usr/nec; then
- version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext'
- soname_spec='$libname$shared_ext.$major'
- shlibpath_var=LD_LIBRARY_PATH
- fi
- ;;
-
-sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
- version_type=sco
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- if test yes = "$with_gnu_ld"; then
- sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
- else
- sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
- case $host_os in
- sco3.2v5*)
- sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
- ;;
- esac
- fi
- sys_lib_dlsearch_path_spec='/usr/lib'
- ;;
-
-tpf*)
- # TPF is a cross-target only. Preferred cross-host = GNU/Linux.
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
-
-uts4*)
- version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
- soname_spec='$libname$release$shared_ext$major'
- shlibpath_var=LD_LIBRARY_PATH
- ;;
-
-*)
- dynamic_linker=no
- ;;
-esac
-AC_MSG_RESULT([$dynamic_linker])
-test no = "$dynamic_linker" && can_build_shared=no
-
-variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
-if test yes = "$GCC"; then
- variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
-fi
-
-if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then
- sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec
-fi
-
-if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then
- sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec
-fi
-
-# remember unaugmented sys_lib_dlsearch_path content for libtool script decls...
-configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec
-
-# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code
-func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH"
-
-# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool
-configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
-
-_LT_DECL([], [variables_saved_for_relink], [1],
- [Variables whose values should be saved in libtool wrapper scripts and
- restored at link time])
-_LT_DECL([], [need_lib_prefix], [0],
- [Do we need the "lib" prefix for modules?])
-_LT_DECL([], [need_version], [0], [Do we need a version for libraries?])
-_LT_DECL([], [version_type], [0], [Library versioning type])
-_LT_DECL([], [runpath_var], [0], [Shared library runtime path variable])
-_LT_DECL([], [shlibpath_var], [0],[Shared library path variable])
-_LT_DECL([], [shlibpath_overrides_runpath], [0],
- [Is shlibpath searched before the hard-coded library search path?])
-_LT_DECL([], [libname_spec], [1], [Format of library name prefix])
-_LT_DECL([], [library_names_spec], [1],
- [[List of archive names. First name is the real one, the rest are links.
- The last name is the one that the linker finds with -lNAME]])
-_LT_DECL([], [soname_spec], [1],
- [[The coded name of the library, if different from the real name]])
-_LT_DECL([], [install_override_mode], [1],
- [Permission mode override for installation of shared libraries])
-_LT_DECL([], [postinstall_cmds], [2],
- [Command to use after installation of a shared archive])
-_LT_DECL([], [postuninstall_cmds], [2],
- [Command to use after uninstallation of a shared archive])
-_LT_DECL([], [finish_cmds], [2],
- [Commands used to finish a libtool library installation in a directory])
-_LT_DECL([], [finish_eval], [1],
- [[As "finish_cmds", except a single script fragment to be evaled but
- not shown]])
-_LT_DECL([], [hardcode_into_libs], [0],
- [Whether we should hardcode library paths into libraries])
-_LT_DECL([], [sys_lib_search_path_spec], [2],
- [Compile-time system search path for libraries])
-_LT_DECL([sys_lib_dlsearch_path_spec], [configure_time_dlsearch_path], [2],
- [Detected run-time system search path for libraries])
-_LT_DECL([], [configure_time_lt_sys_library_path], [2],
- [Explicit LT_SYS_LIBRARY_PATH set during ./configure time])
-])# _LT_SYS_DYNAMIC_LINKER
-
-
-# _LT_PATH_TOOL_PREFIX(TOOL)
-# --------------------------
-# find a file program that can recognize shared library
-AC_DEFUN([_LT_PATH_TOOL_PREFIX],
-[m4_require([_LT_DECL_EGREP])dnl
-AC_MSG_CHECKING([for $1])
-AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
-[case $MAGIC_CMD in
-[[\\/*] | ?:[\\/]*])
- lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
- ;;
-*)
- lt_save_MAGIC_CMD=$MAGIC_CMD
- lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
-dnl $ac_dummy forces splitting on constant user-supplied paths.
-dnl POSIX.2 word splitting is done only on the output of word expansions,
-dnl not every word. This closes a longstanding sh security hole.
- ac_dummy="m4_if([$2], , $PATH, [$2])"
- for ac_dir in $ac_dummy; do
- IFS=$lt_save_ifs
- test -z "$ac_dir" && ac_dir=.
- if test -f "$ac_dir/$1"; then
- lt_cv_path_MAGIC_CMD=$ac_dir/"$1"
- if test -n "$file_magic_test_file"; then
- case $deplibs_check_method in
- "file_magic "*)
- file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
- MAGIC_CMD=$lt_cv_path_MAGIC_CMD
- if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
- $EGREP "$file_magic_regex" > /dev/null; then
- :
- else
- cat <<_LT_EOF 1>&2
-
-*** Warning: the command libtool uses to detect shared libraries,
-*** $file_magic_cmd, produces output that libtool cannot recognize.
-*** The result is that libtool may fail to recognize shared libraries
-*** as such. This will affect the creation of libtool libraries that
-*** depend on shared libraries, but programs linked with such libtool
-*** libraries will work regardless of this problem. Nevertheless, you
-*** may want to report the problem to your system manager and/or to
-*** bug-libtool@gnu.org
-
-_LT_EOF
- fi ;;
- esac
- fi
- break
- fi
- done
- IFS=$lt_save_ifs
- MAGIC_CMD=$lt_save_MAGIC_CMD
- ;;
-esac])
-MAGIC_CMD=$lt_cv_path_MAGIC_CMD
-if test -n "$MAGIC_CMD"; then
- AC_MSG_RESULT($MAGIC_CMD)
-else
- AC_MSG_RESULT(no)
-fi
-_LT_DECL([], [MAGIC_CMD], [0],
- [Used to examine libraries when file_magic_cmd begins with "file"])dnl
-])# _LT_PATH_TOOL_PREFIX
-
-# Old name:
-AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], [])
-
-
-# _LT_PATH_MAGIC
-# --------------
-# find a file program that can recognize a shared library
-m4_defun([_LT_PATH_MAGIC],
-[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH)
-if test -z "$lt_cv_path_MAGIC_CMD"; then
- if test -n "$ac_tool_prefix"; then
- _LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH)
- else
- MAGIC_CMD=:
- fi
-fi
-])# _LT_PATH_MAGIC
-
-
-# LT_PATH_LD
-# ----------
-# find the pathname to the GNU or non-GNU linker
-AC_DEFUN([LT_PATH_LD],
-[AC_REQUIRE([AC_PROG_CC])dnl
-AC_REQUIRE([AC_CANONICAL_HOST])dnl
-AC_REQUIRE([AC_CANONICAL_BUILD])dnl
-m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_DECL_EGREP])dnl
-m4_require([_LT_PROG_ECHO_BACKSLASH])dnl
-
-AC_ARG_WITH([gnu-ld],
- [AS_HELP_STRING([--with-gnu-ld],
- [assume the C compiler uses GNU ld @<:@default=no@:>@])],
- [test no = "$withval" || with_gnu_ld=yes],
- [with_gnu_ld=no])dnl
-
-ac_prog=ld
-if test yes = "$GCC"; then
- # Check if gcc -print-prog-name=ld gives a path.
- AC_MSG_CHECKING([for ld used by $CC])
- case $host in
- *-*-mingw*)
- # gcc leaves a trailing carriage return, which upsets mingw
- ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
- *)
- ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
- esac
- case $ac_prog in
- # Accept absolute paths.
- [[\\/]]* | ?:[[\\/]]*)
- re_direlt='/[[^/]][[^/]]*/\.\./'
- # Canonicalize the pathname of ld
- ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
- while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
- ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
- done
- test -z "$LD" && LD=$ac_prog
- ;;
- "")
- # If it fails, then pretend we aren't using GCC.
- ac_prog=ld
- ;;
- *)
- # If it is relative, then search for the first ld in PATH.
- with_gnu_ld=unknown
- ;;
- esac
-elif test yes = "$with_gnu_ld"; then
- AC_MSG_CHECKING([for GNU ld])
-else
- AC_MSG_CHECKING([for non-GNU ld])
-fi
-AC_CACHE_VAL(lt_cv_path_LD,
-[if test -z "$LD"; then
- lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
- for ac_dir in $PATH; do
- IFS=$lt_save_ifs
- test -z "$ac_dir" && ac_dir=.
- if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
- lt_cv_path_LD=$ac_dir/$ac_prog
- # Check to see if the program is GNU ld. I'd rather use --version,
- # but apparently some variants of GNU ld only accept -v.
- # Break only if it was the GNU/non-GNU ld that we prefer.
- case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
- *GNU* | *'with BFD'*)
- test no != "$with_gnu_ld" && break
- ;;
- *)
- test yes != "$with_gnu_ld" && break
- ;;
- esac
- fi
- done
- IFS=$lt_save_ifs
-else
- lt_cv_path_LD=$LD # Let the user override the test with a path.
-fi])
-LD=$lt_cv_path_LD
-if test -n "$LD"; then
- AC_MSG_RESULT($LD)
-else
- AC_MSG_RESULT(no)
-fi
-test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
-_LT_PATH_LD_GNU
-AC_SUBST([LD])
-
-_LT_TAGDECL([], [LD], [1], [The linker used to build libraries])
-])# LT_PATH_LD
-
-# Old names:
-AU_ALIAS([AM_PROG_LD], [LT_PATH_LD])
-AU_ALIAS([AC_PROG_LD], [LT_PATH_LD])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AM_PROG_LD], [])
-dnl AC_DEFUN([AC_PROG_LD], [])
-
-
-# _LT_PATH_LD_GNU
-#- --------------
-m4_defun([_LT_PATH_LD_GNU],
-[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
-[# I'd rather use --version here, but apparently some GNU lds only accept -v.
-case `$LD -v 2>&1 </dev/null` in
-*GNU* | *'with BFD'*)
- lt_cv_prog_gnu_ld=yes
- ;;
-*)
- lt_cv_prog_gnu_ld=no
- ;;
-esac])
-with_gnu_ld=$lt_cv_prog_gnu_ld
-])# _LT_PATH_LD_GNU
-
-
-# _LT_CMD_RELOAD
-# --------------
-# find reload flag for linker
-# -- PORTME Some linkers may need a different reload flag.
-m4_defun([_LT_CMD_RELOAD],
-[AC_CACHE_CHECK([for $LD option to reload object files],
- lt_cv_ld_reload_flag,
- [lt_cv_ld_reload_flag='-r'])
-reload_flag=$lt_cv_ld_reload_flag
-case $reload_flag in
-"" | " "*) ;;
-*) reload_flag=" $reload_flag" ;;
-esac
-reload_cmds='$LD$reload_flag -o $output$reload_objs'
-case $host_os in
- cygwin* | mingw* | pw32* | cegcc*)
- if test yes != "$GCC"; then
- reload_cmds=false
- fi
- ;;
- darwin*)
- if test yes = "$GCC"; then
- reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs'
- else
- reload_cmds='$LD$reload_flag -o $output$reload_objs'
- fi
- ;;
-esac
-_LT_TAGDECL([], [reload_flag], [1], [How to create reloadable object files])dnl
-_LT_TAGDECL([], [reload_cmds], [2])dnl
-])# _LT_CMD_RELOAD
-
-
-# _LT_PATH_DD
-# -----------
-# find a working dd
-m4_defun([_LT_PATH_DD],
-[AC_CACHE_CHECK([for a working dd], [ac_cv_path_lt_DD],
-[printf 0123456789abcdef0123456789abcdef >conftest.i
-cat conftest.i conftest.i >conftest2.i
-: ${lt_DD:=$DD}
-AC_PATH_PROGS_FEATURE_CHECK([lt_DD], [dd],
-[if "$ac_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
- cmp -s conftest.i conftest.out \
- && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=:
-fi])
-rm -f conftest.i conftest2.i conftest.out])
-])# _LT_PATH_DD
-
-
-# _LT_CMD_TRUNCATE
-# ----------------
-# find command to truncate a binary pipe
-m4_defun([_LT_CMD_TRUNCATE],
-[m4_require([_LT_PATH_DD])
-AC_CACHE_CHECK([how to truncate binary pipes], [lt_cv_truncate_bin],
-[printf 0123456789abcdef0123456789abcdef >conftest.i
-cat conftest.i conftest.i >conftest2.i
-lt_cv_truncate_bin=
-if "$ac_cv_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
- cmp -s conftest.i conftest.out \
- && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1"
-fi
-rm -f conftest.i conftest2.i conftest.out
-test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"])
-_LT_DECL([lt_truncate_bin], [lt_cv_truncate_bin], [1],
- [Command to truncate a binary pipe])
-])# _LT_CMD_TRUNCATE
-
-
-# _LT_CHECK_MAGIC_METHOD
-# ----------------------
-# how to check for library dependencies
-# -- PORTME fill in with the dynamic library characteristics
-m4_defun([_LT_CHECK_MAGIC_METHOD],
-[m4_require([_LT_DECL_EGREP])
-m4_require([_LT_DECL_OBJDUMP])
-AC_CACHE_CHECK([how to recognize dependent libraries],
-lt_cv_deplibs_check_method,
-[lt_cv_file_magic_cmd='$MAGIC_CMD'
-lt_cv_file_magic_test_file=
-lt_cv_deplibs_check_method='unknown'
-# Need to set the preceding variable on all platforms that support
-# interlibrary dependencies.
-# 'none' -- dependencies not supported.
-# 'unknown' -- same as none, but documents that we really don't know.
-# 'pass_all' -- all dependencies passed with no checks.
-# 'test_compile' -- check by making test program.
-# 'file_magic [[regex]]' -- check by looking for files in library path
-# that responds to the $file_magic_cmd with a given extended regex.
-# If you have 'file' or equivalent on your system and you're not sure
-# whether 'pass_all' will *always* work, you probably want this one.
-
-case $host_os in
-aix[[4-9]]*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-beos*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-bsdi[[45]]*)
- lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib)'
- lt_cv_file_magic_cmd='/usr/bin/file -L'
- lt_cv_file_magic_test_file=/shlib/libc.so
- ;;
-
-cygwin*)
- # func_win32_libid is a shell function defined in ltmain.sh
- lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
- lt_cv_file_magic_cmd='func_win32_libid'
- ;;
-
-mingw* | pw32*)
- # Base MSYS/MinGW do not provide the 'file' command needed by
- # func_win32_libid shell function, so use a weaker test based on 'objdump',
- # unless we find 'file', for example because we are cross-compiling.
- if ( file / ) >/dev/null 2>&1; then
- lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
- lt_cv_file_magic_cmd='func_win32_libid'
- else
- # Keep this pattern in sync with the one in func_win32_libid.
- lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
- lt_cv_file_magic_cmd='$OBJDUMP -f'
- fi
- ;;
-
-cegcc*)
- # use the weaker test based on 'objdump'. See mingw*.
- lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
- lt_cv_file_magic_cmd='$OBJDUMP -f'
- ;;
-
-darwin* | rhapsody*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-freebsd* | dragonfly*)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
- case $host_cpu in
- i*86 )
- # Not sure whether the presence of OpenBSD here was a mistake.
- # Let's accept both of them until this is cleared up.
- lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[[3-9]]86 (compact )?demand paged shared library'
- lt_cv_file_magic_cmd=/usr/bin/file
- lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
- ;;
- esac
- else
- lt_cv_deplibs_check_method=pass_all
- fi
- ;;
-
-haiku*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-hpux10.20* | hpux11*)
- lt_cv_file_magic_cmd=/usr/bin/file
- case $host_cpu in
- ia64*)
- lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64'
- lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
- ;;
- hppa*64*)
- [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]']
- lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
- ;;
- *)
- lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]]\.[[0-9]]) shared library'
- lt_cv_file_magic_test_file=/usr/lib/libc.sl
- ;;
- esac
- ;;
-
-interix[[3-9]]*)
- # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
- lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$'
- ;;
-
-irix5* | irix6* | nonstopux*)
- case $LD in
- *-32|*"-32 ") libmagic=32-bit;;
- *-n32|*"-n32 ") libmagic=N32;;
- *-64|*"-64 ") libmagic=64-bit;;
- *) libmagic=never-match;;
- esac
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-# This must be glibc/ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-netbsd*)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
- lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
- else
- lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$'
- fi
- ;;
-
-newos6*)
- lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)'
- lt_cv_file_magic_cmd=/usr/bin/file
- lt_cv_file_magic_test_file=/usr/lib/libnls.so
- ;;
-
-*nto* | *qnx*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-openbsd* | bitrig*)
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
- lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$'
- else
- lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
- fi
- ;;
-
-osf3* | osf4* | osf5*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-rdos*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-solaris*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-sysv4 | sysv4.3*)
- case $host_vendor in
- motorola)
- lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]'
- lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
- ;;
- ncr)
- lt_cv_deplibs_check_method=pass_all
- ;;
- sequent)
- lt_cv_file_magic_cmd='/bin/file'
- lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )'
- ;;
- sni)
- lt_cv_file_magic_cmd='/bin/file'
- lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib"
- lt_cv_file_magic_test_file=/lib/libc.so
- ;;
- siemens)
- lt_cv_deplibs_check_method=pass_all
- ;;
- pc)
- lt_cv_deplibs_check_method=pass_all
- ;;
- esac
- ;;
-
-tpf*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-os2*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-esac
-])
-
-file_magic_glob=
-want_nocaseglob=no
-if test "$build" = "$host"; then
- case $host_os in
- mingw* | pw32*)
- if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then
- want_nocaseglob=yes
- else
- file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"`
- fi
- ;;
- esac
-fi
-
-file_magic_cmd=$lt_cv_file_magic_cmd
-deplibs_check_method=$lt_cv_deplibs_check_method
-test -z "$deplibs_check_method" && deplibs_check_method=unknown
-
-_LT_DECL([], [deplibs_check_method], [1],
- [Method to check whether dependent libraries are shared objects])
-_LT_DECL([], [file_magic_cmd], [1],
- [Command to use when deplibs_check_method = "file_magic"])
-_LT_DECL([], [file_magic_glob], [1],
- [How to find potential files when deplibs_check_method = "file_magic"])
-_LT_DECL([], [want_nocaseglob], [1],
- [Find potential files using nocaseglob when deplibs_check_method = "file_magic"])
-])# _LT_CHECK_MAGIC_METHOD
-
-
-# LT_PATH_NM
-# ----------
-# find the pathname to a BSD- or MS-compatible name lister
-AC_DEFUN([LT_PATH_NM],
-[AC_REQUIRE([AC_PROG_CC])dnl
-AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM,
-[if test -n "$NM"; then
- # Let the user override the test.
- lt_cv_path_NM=$NM
-else
- lt_nm_to_check=${ac_tool_prefix}nm
- if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
- lt_nm_to_check="$lt_nm_to_check nm"
- fi
- for lt_tmp_nm in $lt_nm_to_check; do
- lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
- for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
- IFS=$lt_save_ifs
- test -z "$ac_dir" && ac_dir=.
- tmp_nm=$ac_dir/$lt_tmp_nm
- if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then
- # Check to see if the nm accepts a BSD-compat flag.
- # Adding the 'sed 1q' prevents false positives on HP-UX, which says:
- # nm: unknown option "B" ignored
- # Tru64's nm complains that /dev/null is an invalid object file
- # MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty
- case $build_os in
- mingw*) lt_bad_file=conftest.nm/nofile ;;
- *) lt_bad_file=/dev/null ;;
- esac
- case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in
- *$lt_bad_file* | *'Invalid file or object type'*)
- lt_cv_path_NM="$tmp_nm -B"
- break 2
- ;;
- *)
- case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
- */dev/null*)
- lt_cv_path_NM="$tmp_nm -p"
- break 2
- ;;
- *)
- lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
- continue # so that we can try to find one that supports BSD flags
- ;;
- esac
- ;;
- esac
- fi
- done
- IFS=$lt_save_ifs
- done
- : ${lt_cv_path_NM=no}
-fi])
-if test no != "$lt_cv_path_NM"; then
- NM=$lt_cv_path_NM
-else
- # Didn't find any BSD compatible name lister, look for dumpbin.
- if test -n "$DUMPBIN"; then :
- # Let the user override the test.
- else
- AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :)
- case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in
- *COFF*)
- DUMPBIN="$DUMPBIN -symbols -headers"
- ;;
- *)
- DUMPBIN=:
- ;;
- esac
- fi
- AC_SUBST([DUMPBIN])
- if test : != "$DUMPBIN"; then
- NM=$DUMPBIN
- fi
-fi
-test -z "$NM" && NM=nm
-AC_SUBST([NM])
-_LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl
-
-AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface],
- [lt_cv_nm_interface="BSD nm"
- echo "int some_variable = 0;" > conftest.$ac_ext
- (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&AS_MESSAGE_LOG_FD)
- (eval "$ac_compile" 2>conftest.err)
- cat conftest.err >&AS_MESSAGE_LOG_FD
- (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD)
- (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
- cat conftest.err >&AS_MESSAGE_LOG_FD
- (eval echo "\"\$as_me:$LINENO: output\"" >&AS_MESSAGE_LOG_FD)
- cat conftest.out >&AS_MESSAGE_LOG_FD
- if $GREP 'External.*some_variable' conftest.out > /dev/null; then
- lt_cv_nm_interface="MS dumpbin"
- fi
- rm -f conftest*])
-])# LT_PATH_NM
-
-# Old names:
-AU_ALIAS([AM_PROG_NM], [LT_PATH_NM])
-AU_ALIAS([AC_PROG_NM], [LT_PATH_NM])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AM_PROG_NM], [])
-dnl AC_DEFUN([AC_PROG_NM], [])
-
-# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
-# --------------------------------
-# how to determine the name of the shared library
-# associated with a specific link library.
-# -- PORTME fill in with the dynamic library characteristics
-m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB],
-[m4_require([_LT_DECL_EGREP])
-m4_require([_LT_DECL_OBJDUMP])
-m4_require([_LT_DECL_DLLTOOL])
-AC_CACHE_CHECK([how to associate runtime and link libraries],
-lt_cv_sharedlib_from_linklib_cmd,
-[lt_cv_sharedlib_from_linklib_cmd='unknown'
-
-case $host_os in
-cygwin* | mingw* | pw32* | cegcc*)
- # two different shell functions defined in ltmain.sh;
- # decide which one to use based on capabilities of $DLLTOOL
- case `$DLLTOOL --help 2>&1` in
- *--identify-strict*)
- lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
- ;;
- *)
- lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
- ;;
- esac
- ;;
-*)
- # fallback: assume linklib IS sharedlib
- lt_cv_sharedlib_from_linklib_cmd=$ECHO
- ;;
-esac
-])
-sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
-test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
-
-_LT_DECL([], [sharedlib_from_linklib_cmd], [1],
- [Command to associate shared and link libraries])
-])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
-
-
-# _LT_PATH_MANIFEST_TOOL
-# ----------------------
-# locate the manifest tool
-m4_defun([_LT_PATH_MANIFEST_TOOL],
-[AC_CHECK_TOOL(MANIFEST_TOOL, mt, :)
-test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
-AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool],
- [lt_cv_path_mainfest_tool=no
- echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD
- $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
- cat conftest.err >&AS_MESSAGE_LOG_FD
- if $GREP 'Manifest Tool' conftest.out > /dev/null; then
- lt_cv_path_mainfest_tool=yes
- fi
- rm -f conftest*])
-if test yes != "$lt_cv_path_mainfest_tool"; then
- MANIFEST_TOOL=:
-fi
-_LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl
-])# _LT_PATH_MANIFEST_TOOL
-
-
-# _LT_DLL_DEF_P([FILE])
-# ---------------------
-# True iff FILE is a Windows DLL '.def' file.
-# Keep in sync with func_dll_def_p in the libtool script
-AC_DEFUN([_LT_DLL_DEF_P],
-[dnl
- test DEF = "`$SED -n dnl
- -e '\''s/^[[ ]]*//'\'' dnl Strip leading whitespace
- -e '\''/^\(;.*\)*$/d'\'' dnl Delete empty lines and comments
- -e '\''s/^\(EXPORTS\|LIBRARY\)\([[ ]].*\)*$/DEF/p'\'' dnl
- -e q dnl Only consider the first "real" line
- $1`" dnl
-])# _LT_DLL_DEF_P
-
-
-# LT_LIB_M
-# --------
-# check for math library
-AC_DEFUN([LT_LIB_M],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-LIBM=
-case $host in
-*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*)
- # These system don't have libm, or don't need it
- ;;
-*-ncr-sysv4.3*)
- AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM=-lmw)
- AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm")
- ;;
-*)
- AC_CHECK_LIB(m, cos, LIBM=-lm)
- ;;
-esac
-AC_SUBST([LIBM])
-])# LT_LIB_M
-
-# Old name:
-AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_CHECK_LIBM], [])
-
-
-# _LT_COMPILER_NO_RTTI([TAGNAME])
-# -------------------------------
-m4_defun([_LT_COMPILER_NO_RTTI],
-[m4_require([_LT_TAG_COMPILER])dnl
-
-_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
-
-if test yes = "$GCC"; then
- case $cc_basename in
- nvcc*)
- _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;;
- esac
-
- _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions],
- lt_cv_prog_compiler_rtti_exceptions,
- [-fno-rtti -fno-exceptions], [],
- [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"])
-fi
-_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1],
- [Compiler flag to turn off builtin functions])
-])# _LT_COMPILER_NO_RTTI
-
-
-# _LT_CMD_GLOBAL_SYMBOLS
-# ----------------------
-m4_defun([_LT_CMD_GLOBAL_SYMBOLS],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-AC_REQUIRE([AC_PROG_CC])dnl
-AC_REQUIRE([AC_PROG_AWK])dnl
-AC_REQUIRE([LT_PATH_NM])dnl
-AC_REQUIRE([LT_PATH_LD])dnl
-m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_DECL_EGREP])dnl
-m4_require([_LT_TAG_COMPILER])dnl
-
-# Check for command to grab the raw symbol name followed by C symbol from nm.
-AC_MSG_CHECKING([command to parse $NM output from $compiler object])
-AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe],
-[
-# These are sane defaults that work on at least a few old systems.
-# [They come from Ultrix. What could be older than Ultrix?!! ;)]
-
-# Character class describing NM global symbol codes.
-symcode='[[BCDEGRST]]'
-
-# Regexp to match symbols that can be accessed directly from C.
-sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)'
-
-# Define system-specific variables.
-case $host_os in
-aix*)
- symcode='[[BCDT]]'
- ;;
-cygwin* | mingw* | pw32* | cegcc*)
- symcode='[[ABCDGISTW]]'
- ;;
-hpux*)
- if test ia64 = "$host_cpu"; then
- symcode='[[ABCDEGRST]]'
- fi
- ;;
-irix* | nonstopux*)
- symcode='[[BCDEGRST]]'
- ;;
-osf*)
- symcode='[[BCDEGQRST]]'
- ;;
-solaris*)
- symcode='[[BDRT]]'
- ;;
-sco3.2v5*)
- symcode='[[DT]]'
- ;;
-sysv4.2uw2*)
- symcode='[[DT]]'
- ;;
-sysv5* | sco5v6* | unixware* | OpenUNIX*)
- symcode='[[ABDT]]'
- ;;
-sysv4)
- symcode='[[DFNSTU]]'
- ;;
-esac
-
-# If we're using GNU nm, then use its standard symbol codes.
-case `$NM -V 2>&1` in
-*GNU* | *'with BFD'*)
- symcode='[[ABCDGIRSTW]]' ;;
-esac
-
-if test "$lt_cv_nm_interface" = "MS dumpbin"; then
- # Gets list of data symbols to import.
- lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'"
- # Adjust the below global symbol transforms to fixup imported variables.
- lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'"
- lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'"
- lt_c_name_lib_hook="\
- -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\
- -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'"
-else
- # Disable hooks by default.
- lt_cv_sys_global_symbol_to_import=
- lt_cdecl_hook=
- lt_c_name_hook=
- lt_c_name_lib_hook=
-fi
-
-# Transform an extracted symbol line into a proper C declaration.
-# Some systems (esp. on ia64) link data and code symbols differently,
-# so use this general approach.
-lt_cv_sys_global_symbol_to_cdecl="sed -n"\
-$lt_cdecl_hook\
-" -e 's/^T .* \(.*\)$/extern int \1();/p'"\
-" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'"
-
-# Transform an extracted symbol line into symbol name and symbol address
-lt_cv_sys_global_symbol_to_c_name_address="sed -n"\
-$lt_c_name_hook\
-" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\
-" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'"
-
-# Transform an extracted symbol line into symbol name with lib prefix and
-# symbol address.
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\
-$lt_c_name_lib_hook\
-" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\
-" -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\
-" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'"
-
-# Handle CRLF in mingw tool chain
-opt_cr=
-case $build_os in
-mingw*)
- opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
- ;;
-esac
-
-# Try without a prefix underscore, then with it.
-for ac_symprfx in "" "_"; do
-
- # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
- symxfrm="\\1 $ac_symprfx\\2 \\2"
-
- # Write the raw and C identifiers.
- if test "$lt_cv_nm_interface" = "MS dumpbin"; then
- # Fake it for dumpbin and say T for any non-static function,
- # D for any global variable and I for any imported variable.
- # Also find C++ and __fastcall symbols from MSVC++,
- # which start with @ or ?.
- lt_cv_sys_global_symbol_pipe="$AWK ['"\
-" {last_section=section; section=\$ 3};"\
-" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
-" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
-" /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\
-" /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\
-" /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\
-" \$ 0!~/External *\|/{next};"\
-" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
-" {if(hide[section]) next};"\
-" {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\
-" {split(\$ 0,a,/\||\r/); split(a[2],s)};"\
-" s[1]~/^[@?]/{print f,s[1],s[1]; next};"\
-" s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\
-" ' prfx=^$ac_symprfx]"
- else
- lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
- fi
- lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'"
-
- # Check to see that the pipe works correctly.
- pipe_works=no
-
- rm -f conftest*
- cat > conftest.$ac_ext <<_LT_EOF
-#ifdef __cplusplus
-extern "C" {
-#endif
-char nm_test_var;
-void nm_test_func(void);
-void nm_test_func(void){}
-#ifdef __cplusplus
-}
-#endif
-int main(){nm_test_var='a';nm_test_func();return(0);}
-_LT_EOF
-
- if AC_TRY_EVAL(ac_compile); then
- # Now try to grab the symbols.
- nlist=conftest.nm
- if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then
- # Try sorting and uniquifying the output.
- if sort "$nlist" | uniq > "$nlist"T; then
- mv -f "$nlist"T "$nlist"
- else
- rm -f "$nlist"T
- fi
-
- # Make sure that we snagged all the symbols we need.
- if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
- if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
- cat <<_LT_EOF > conftest.$ac_ext
-/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */
-#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
-/* DATA imports from DLLs on WIN32 can't be const, because runtime
- relocations are performed -- see ld's documentation on pseudo-relocs. */
-# define LT@&t@_DLSYM_CONST
-#elif defined __osf__
-/* This system does not cope well with relocations in const data. */
-# define LT@&t@_DLSYM_CONST
-#else
-# define LT@&t@_DLSYM_CONST const
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-_LT_EOF
- # Now generate the symbol file.
- eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
-
- cat <<_LT_EOF >> conftest.$ac_ext
-
-/* The mapping between symbol names and symbols. */
-LT@&t@_DLSYM_CONST struct {
- const char *name;
- void *address;
-}
-lt__PROGRAM__LTX_preloaded_symbols[[]] =
-{
- { "@PROGRAM@", (void *) 0 },
-_LT_EOF
- $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
- cat <<\_LT_EOF >> conftest.$ac_ext
- {0, (void *) 0}
-};
-
-/* This works around a problem in FreeBSD linker */
-#ifdef FREEBSD_WORKAROUND
-static const void *lt_preloaded_setup() {
- return lt__PROGRAM__LTX_preloaded_symbols;
-}
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-_LT_EOF
- # Now try linking the two files.
- mv conftest.$ac_objext conftstm.$ac_objext
- lt_globsym_save_LIBS=$LIBS
- lt_globsym_save_CFLAGS=$CFLAGS
- LIBS=conftstm.$ac_objext
- CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)"
- if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext; then
- pipe_works=yes
- fi
- LIBS=$lt_globsym_save_LIBS
- CFLAGS=$lt_globsym_save_CFLAGS
- else
- echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD
- fi
- else
- echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD
- fi
- else
- echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
- fi
- else
- echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD
- cat conftest.$ac_ext >&5
- fi
- rm -rf conftest* conftst*
-
- # Do not use the global_symbol_pipe unless it works.
- if test yes = "$pipe_works"; then
- break
- else
- lt_cv_sys_global_symbol_pipe=
- fi
-done
-])
-if test -z "$lt_cv_sys_global_symbol_pipe"; then
- lt_cv_sys_global_symbol_to_cdecl=
-fi
-if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
- AC_MSG_RESULT(failed)
-else
- AC_MSG_RESULT(ok)
-fi
-
-# Response file support.
-if test "$lt_cv_nm_interface" = "MS dumpbin"; then
- nm_file_list_spec='@'
-elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then
- nm_file_list_spec='@'
-fi
-
-_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1],
- [Take the output of nm and produce a listing of raw symbols and C names])
-_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1],
- [Transform the output of nm in a proper C declaration])
-_LT_DECL([global_symbol_to_import], [lt_cv_sys_global_symbol_to_import], [1],
- [Transform the output of nm into a list of symbols to manually relocate])
-_LT_DECL([global_symbol_to_c_name_address],
- [lt_cv_sys_global_symbol_to_c_name_address], [1],
- [Transform the output of nm in a C name address pair])
-_LT_DECL([global_symbol_to_c_name_address_lib_prefix],
- [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1],
- [Transform the output of nm in a C name address pair when lib prefix is needed])
-_LT_DECL([nm_interface], [lt_cv_nm_interface], [1],
- [The name lister interface])
-_LT_DECL([], [nm_file_list_spec], [1],
- [Specify filename containing input files for $NM])
-]) # _LT_CMD_GLOBAL_SYMBOLS
-
-
-# _LT_COMPILER_PIC([TAGNAME])
-# ---------------------------
-m4_defun([_LT_COMPILER_PIC],
-[m4_require([_LT_TAG_COMPILER])dnl
-_LT_TAGVAR(lt_prog_compiler_wl, $1)=
-_LT_TAGVAR(lt_prog_compiler_pic, $1)=
-_LT_TAGVAR(lt_prog_compiler_static, $1)=
-
-m4_if([$1], [CXX], [
- # C++ specific cases for pic, static, wl, etc.
- if test yes = "$GXX"; then
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
-
- case $host_os in
- aix*)
- # All AIX code is PIC.
- if test ia64 = "$host_cpu"; then
- # AIX 5 now supports IA64 processor
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- fi
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- m68k)
- # FIXME: we need at least 68020 code to build shared libraries, but
- # adding the '-m68020' flag to GCC prevents building anything better,
- # like '-m68040'.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
- ;;
- esac
- ;;
-
- beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
- # PIC is the default for these OSes.
- ;;
- mingw* | cygwin* | os2* | pw32* | cegcc*)
- # This hack is so that the source file can tell whether it is being
- # built for inclusion in a dll (and should export symbols for example).
- # Although the cygwin gcc ignores -fPIC, still need this for old-style
- # (--disable-auto-import) libraries
- m4_if([$1], [GCJ], [],
- [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
- case $host_os in
- os2*)
- _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
- ;;
- esac
- ;;
- darwin* | rhapsody*)
- # PIC is the default on this platform
- # Common symbols not allowed in MH_DYLIB files
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
- ;;
- *djgpp*)
- # DJGPP does not support shared libraries at all
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=
- ;;
- haiku*)
- # PIC is the default for Haiku.
- # The "-static" flag exists, but is broken.
- _LT_TAGVAR(lt_prog_compiler_static, $1)=
- ;;
- interix[[3-9]]*)
- # Interix 3.x gcc -fpic/-fPIC options generate broken code.
- # Instead, we relocate shared libraries at runtime.
- ;;
- sysv4*MP*)
- if test -d /usr/nec; then
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
- fi
- ;;
- hpux*)
- # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
- # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag
- # sets the default TLS model and affects inlining.
- case $host_cpu in
- hppa*64*)
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- esac
- ;;
- *qnx* | *nto*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- esac
- else
- case $host_os in
- aix[[4-9]]*)
- # All AIX code is PIC.
- if test ia64 = "$host_cpu"; then
- # AIX 5 now supports IA64 processor
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- else
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
- fi
- ;;
- chorus*)
- case $cc_basename in
- cxch68*)
- # Green Hills C++ Compiler
- # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
- ;;
- esac
- ;;
- mingw* | cygwin* | os2* | pw32* | cegcc*)
- # This hack is so that the source file can tell whether it is being
- # built for inclusion in a dll (and should export symbols for example).
- m4_if([$1], [GCJ], [],
- [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
- ;;
- dgux*)
- case $cc_basename in
- ec++*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- ;;
- ghcx*)
- # Green Hills C++ Compiler
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
- ;;
- *)
- ;;
- esac
- ;;
- freebsd* | dragonfly*)
- # FreeBSD uses GNU C++
- ;;
- hpux9* | hpux10* | hpux11*)
- case $cc_basename in
- CC*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
- if test ia64 != "$host_cpu"; then
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
- fi
- ;;
- aCC*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
- case $host_cpu in
- hppa*64*|ia64*)
- # +Z the default
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
- ;;
- esac
- ;;
- *)
- ;;
- esac
- ;;
- interix*)
- # This is c89, which is MS Visual C++ (no shared libs)
- # Anyone wants to do a port?
- ;;
- irix5* | irix6* | nonstopux*)
- case $cc_basename in
- CC*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- # CC pic flag -KPIC is the default.
- ;;
- *)
- ;;
- esac
- ;;
- linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
- case $cc_basename in
- KCC*)
- # KAI C++ Compiler
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- ecpc* )
- # old Intel C++ for x86_64, which still supported -KPIC.
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
- ;;
- icpc* )
- # Intel C++, used to be incompatible with GCC.
- # ICC 10 doesn't accept -KPIC any more.
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
- ;;
- pgCC* | pgcpp*)
- # Portland Group C++ compiler
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
- cxx*)
- # Compaq C++
- # Make sure the PIC flag is empty. It appears that all Alpha
- # Linux and Compaq Tru64 Unix objects are PIC.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
- xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*)
- # IBM XL 8.0, 9.0 on PPC and BlueGene
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
- ;;
- *)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*)
- # Sun C++ 5.9
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
- ;;
- esac
- ;;
- esac
- ;;
- lynxos*)
- ;;
- m88k*)
- ;;
- mvs*)
- case $cc_basename in
- cxx*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall'
- ;;
- *)
- ;;
- esac
- ;;
- netbsd*)
- ;;
- *qnx* | *nto*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
- ;;
- osf3* | osf4* | osf5*)
- case $cc_basename in
- KCC*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
- ;;
- RCC*)
- # Rational C++ 2.4.1
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
- ;;
- cxx*)
- # Digital/Compaq C++
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- # Make sure the PIC flag is empty. It appears that all Alpha
- # Linux and Compaq Tru64 Unix objects are PIC.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
- *)
- ;;
- esac
- ;;
- psos*)
- ;;
- solaris*)
- case $cc_basename in
- CC* | sunCC*)
- # Sun C++ 4.2, 5.x and Centerline C++
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
- ;;
- gcx*)
- # Green Hills C++ Compiler
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
- ;;
- *)
- ;;
- esac
- ;;
- sunos4*)
- case $cc_basename in
- CC*)
- # Sun C++ 4.x
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
- lcc*)
- # Lucid
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
- ;;
- *)
- ;;
- esac
- ;;
- sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
- case $cc_basename in
- CC*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
- esac
- ;;
- tandem*)
- case $cc_basename in
- NCC*)
- # NonStop-UX NCC 3.20
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- ;;
- *)
- ;;
- esac
- ;;
- vxworks*)
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
- ;;
- esac
- fi
-],
-[
- if test yes = "$GCC"; then
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
-
- case $host_os in
- aix*)
- # All AIX code is PIC.
- if test ia64 = "$host_cpu"; then
- # AIX 5 now supports IA64 processor
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- fi
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- m68k)
- # FIXME: we need at least 68020 code to build shared libraries, but
- # adding the '-m68020' flag to GCC prevents building anything better,
- # like '-m68040'.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
- ;;
- esac
- ;;
-
- beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
- # PIC is the default for these OSes.
- ;;
-
- mingw* | cygwin* | pw32* | os2* | cegcc*)
- # This hack is so that the source file can tell whether it is being
- # built for inclusion in a dll (and should export symbols for example).
- # Although the cygwin gcc ignores -fPIC, still need this for old-style
- # (--disable-auto-import) libraries
- m4_if([$1], [GCJ], [],
- [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
- case $host_os in
- os2*)
- _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
- ;;
- esac
- ;;
-
- darwin* | rhapsody*)
- # PIC is the default on this platform
- # Common symbols not allowed in MH_DYLIB files
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
- ;;
-
- haiku*)
- # PIC is the default for Haiku.
- # The "-static" flag exists, but is broken.
- _LT_TAGVAR(lt_prog_compiler_static, $1)=
- ;;
-
- hpux*)
- # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
- # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag
- # sets the default TLS model and affects inlining.
- case $host_cpu in
- hppa*64*)
- # +Z the default
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- esac
- ;;
-
- interix[[3-9]]*)
- # Interix 3.x gcc -fpic/-fPIC options generate broken code.
- # Instead, we relocate shared libraries at runtime.
- ;;
-
- msdosdjgpp*)
- # Just because we use GCC doesn't mean we suddenly get shared libraries
- # on systems that don't support them.
- _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
- enable_shared=no
- ;;
-
- *nto* | *qnx*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
- ;;
-
- sysv4*MP*)
- if test -d /usr/nec; then
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
- fi
- ;;
-
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- esac
-
- case $cc_basename in
- nvcc*) # Cuda Compiler Driver 2.2
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker '
- if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
- _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)"
- fi
- ;;
- esac
- else
- # PORTME Check for flag to pass linker flags through the system compiler.
- case $host_os in
- aix*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- if test ia64 = "$host_cpu"; then
- # AIX 5 now supports IA64 processor
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- else
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
- fi
- ;;
-
- darwin* | rhapsody*)
- # PIC is the default on this platform
- # Common symbols not allowed in MH_DYLIB files
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
- case $cc_basename in
- nagfor*)
- # NAG Fortran compiler
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
- esac
- ;;
-
- mingw* | cygwin* | pw32* | os2* | cegcc*)
- # This hack is so that the source file can tell whether it is being
- # built for inclusion in a dll (and should export symbols for example).
- m4_if([$1], [GCJ], [],
- [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
- case $host_os in
- os2*)
- _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
- ;;
- esac
- ;;
-
- hpux9* | hpux10* | hpux11*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
- # not for PA HP-UX.
- case $host_cpu in
- hppa*64*|ia64*)
- # +Z the default
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
- ;;
- esac
- # Is there a better lt_prog_compiler_static that works with the bundled CC?
- _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
- ;;
-
- irix5* | irix6* | nonstopux*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- # PIC (with -KPIC) is the default.
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
-
- linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
- case $cc_basename in
- # old Intel for x86_64, which still supported -KPIC.
- ecc*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
- ;;
- # icc used to be incompatible with GCC.
- # ICC 10 doesn't accept -KPIC any more.
- icc* | ifort*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
- ;;
- # Lahey Fortran 8.1.
- lf95*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='--static'
- ;;
- nagfor*)
- # NAG Fortran compiler
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
- tcc*)
- # Fabrice Bellard et al's Tiny C Compiler
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
- ;;
- pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
- # Portland Group compilers (*not* the Pentium gcc compiler,
- # which looks to be a dead project)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
- ccc*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- # All Alpha code is PIC.
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
- xl* | bgxl* | bgf* | mpixl*)
- # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
- ;;
- *)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*)
- # Sun Fortran 8.3 passes all unrecognized flags to the linker
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- _LT_TAGVAR(lt_prog_compiler_wl, $1)=''
- ;;
- *Sun\ F* | *Sun*Fortran*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
- ;;
- *Sun\ C*)
- # Sun C 5.9
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- ;;
- *Intel*\ [[CF]]*Compiler*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
- ;;
- *Portland\ Group*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
- esac
- ;;
- esac
- ;;
-
- newsos6)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
-
- *nto* | *qnx*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
- ;;
-
- osf3* | osf4* | osf5*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- # All OSF/1 code is PIC.
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
-
- rdos*)
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
-
- solaris*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- case $cc_basename in
- f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';;
- *)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';;
- esac
- ;;
-
- sunos4*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
-
- sysv4 | sysv4.2uw2* | sysv4.3*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
-
- sysv4*MP*)
- if test -d /usr/nec; then
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- fi
- ;;
-
- sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
-
- unicos*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
- ;;
-
- uts4*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
-
- *)
- _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
- ;;
- esac
- fi
-])
-case $host_os in
- # For platforms that do not support PIC, -DPIC is meaningless:
- *djgpp*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])"
- ;;
-esac
-
-AC_CACHE_CHECK([for $compiler option to produce PIC],
- [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)],
- [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)])
-_LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)
-
-#
-# Check to make sure the PIC flag actually works.
-#
-if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
- _LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works],
- [_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)],
- [$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [],
- [case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in
- "" | " "*) ;;
- *) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;;
- esac],
- [_LT_TAGVAR(lt_prog_compiler_pic, $1)=
- _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no])
-fi
-_LT_TAGDECL([pic_flag], [lt_prog_compiler_pic], [1],
- [Additional compiler flags for building library objects])
-
-_LT_TAGDECL([wl], [lt_prog_compiler_wl], [1],
- [How to pass a linker flag through the compiler])
-#
-# Check to make sure the static flag actually works.
-#
-wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) eval lt_tmp_static_flag=\"$_LT_TAGVAR(lt_prog_compiler_static, $1)\"
-_LT_LINKER_OPTION([if $compiler static flag $lt_tmp_static_flag works],
- _LT_TAGVAR(lt_cv_prog_compiler_static_works, $1),
- $lt_tmp_static_flag,
- [],
- [_LT_TAGVAR(lt_prog_compiler_static, $1)=])
-_LT_TAGDECL([link_static_flag], [lt_prog_compiler_static], [1],
- [Compiler flag to prevent dynamic linking])
-])# _LT_COMPILER_PIC
-
-
-# _LT_LINKER_SHLIBS([TAGNAME])
-# ----------------------------
-# See if the linker supports building shared libraries.
-m4_defun([_LT_LINKER_SHLIBS],
-[AC_REQUIRE([LT_PATH_LD])dnl
-AC_REQUIRE([LT_PATH_NM])dnl
-m4_require([_LT_PATH_MANIFEST_TOOL])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_EGREP])dnl
-m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
-m4_require([_LT_TAG_COMPILER])dnl
-AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
-m4_if([$1], [CXX], [
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
- _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
- case $host_os in
- aix[[4-9]]*)
- # If we're using GNU nm, then we don't want the "-C" option.
- # -C means demangle to GNU nm, but means don't demangle to AIX nm.
- # Without the "-l" option, or with the "-B" option, AIX nm treats
- # weak defined symbols like other global defined symbols, whereas
- # GNU nm marks them as "W".
- # While the 'weak' keyword is ignored in the Export File, we need
- # it in the Import File for the 'aix-soname' feature, so we have
- # to replace the "-B" option with "-P" for AIX nm.
- if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
- else
- _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
- fi
- ;;
- pw32*)
- _LT_TAGVAR(export_symbols_cmds, $1)=$ltdll_cmds
- ;;
- cygwin* | mingw* | cegcc*)
- case $cc_basename in
- cl*)
- _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
- ;;
- *)
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
- _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
- ;;
- esac
- ;;
- *)
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
- ;;
- esac
-], [
- runpath_var=
- _LT_TAGVAR(allow_undefined_flag, $1)=
- _LT_TAGVAR(always_export_symbols, $1)=no
- _LT_TAGVAR(archive_cmds, $1)=
- _LT_TAGVAR(archive_expsym_cmds, $1)=
- _LT_TAGVAR(compiler_needs_object, $1)=no
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
- _LT_TAGVAR(export_dynamic_flag_spec, $1)=
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
- _LT_TAGVAR(hardcode_automatic, $1)=no
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_direct_absolute, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
- _LT_TAGVAR(hardcode_libdir_separator, $1)=
- _LT_TAGVAR(hardcode_minus_L, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
- _LT_TAGVAR(inherit_rpath, $1)=no
- _LT_TAGVAR(link_all_deplibs, $1)=unknown
- _LT_TAGVAR(module_cmds, $1)=
- _LT_TAGVAR(module_expsym_cmds, $1)=
- _LT_TAGVAR(old_archive_from_new_cmds, $1)=
- _LT_TAGVAR(old_archive_from_expsyms_cmds, $1)=
- _LT_TAGVAR(thread_safe_flag_spec, $1)=
- _LT_TAGVAR(whole_archive_flag_spec, $1)=
- # include_expsyms should be a list of space-separated symbols to be *always*
- # included in the symbol list
- _LT_TAGVAR(include_expsyms, $1)=
- # exclude_expsyms can be an extended regexp of symbols to exclude
- # it will be wrapped by ' (' and ')$', so one must not match beginning or
- # end of line. Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc',
- # as well as any symbol that contains 'd'.
- _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
- # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
- # platforms (ab)use it in PIC code, but their linkers get confused if
- # the symbol is explicitly referenced. Since portable code cannot
- # rely on this symbol name, it's probably fine to never include it in
- # preloaded symbol tables.
- # Exclude shared library initialization/finalization symbols.
-dnl Note also adjust exclude_expsyms for C++ above.
- extract_expsyms_cmds=
-
- case $host_os in
- cygwin* | mingw* | pw32* | cegcc*)
- # FIXME: the MSVC++ port hasn't been tested in a loooong time
- # When not using gcc, we currently assume that we are using
- # Microsoft Visual C++.
- if test yes != "$GCC"; then
- with_gnu_ld=no
- fi
- ;;
- interix*)
- # we just hope/assume this is gcc and not c89 (= MSVC++)
- with_gnu_ld=yes
- ;;
- openbsd* | bitrig*)
- with_gnu_ld=no
- ;;
- esac
-
- _LT_TAGVAR(ld_shlibs, $1)=yes
-
- # On some targets, GNU ld is compatible enough with the native linker
- # that we're better off using the native interface for both.
- lt_use_gnu_ld_interface=no
- if test yes = "$with_gnu_ld"; then
- case $host_os in
- aix*)
- # The AIX port of GNU ld has always aspired to compatibility
- # with the native linker. However, as the warning in the GNU ld
- # block says, versions before 2.19.5* couldn't really create working
- # shared libraries, regardless of the interface used.
- case `$LD -v 2>&1` in
- *\ \(GNU\ Binutils\)\ 2.19.5*) ;;
- *\ \(GNU\ Binutils\)\ 2.[[2-9]]*) ;;
- *\ \(GNU\ Binutils\)\ [[3-9]]*) ;;
- *)
- lt_use_gnu_ld_interface=yes
- ;;
- esac
- ;;
- *)
- lt_use_gnu_ld_interface=yes
- ;;
- esac
- fi
-
- if test yes = "$lt_use_gnu_ld_interface"; then
- # If archive_cmds runs LD, not CC, wlarc should be empty
- wlarc='$wl'
-
- # Set some defaults for GNU ld with shared library support. These
- # are reset later if shared libraries are not supported. Putting them
- # here allows them to be overridden if necessary.
- runpath_var=LD_RUN_PATH
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
- # ancient GNU ld didn't support --whole-archive et. al.
- if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
- _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
- else
- _LT_TAGVAR(whole_archive_flag_spec, $1)=
- fi
- supports_anon_versioning=no
- case `$LD -v | $SED -e 's/([^)]\+)\s\+//' 2>&1` in
- *GNU\ gold*) supports_anon_versioning=yes ;;
- *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11
- *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
- *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
- *\ 2.11.*) ;; # other 2.11 versions
- *) supports_anon_versioning=yes ;;
- esac
-
- # See if GNU ld supports shared libraries.
- case $host_os in
- aix[[3-9]]*)
- # On AIX/PPC, the GNU linker is very broken
- if test ia64 != "$host_cpu"; then
- _LT_TAGVAR(ld_shlibs, $1)=no
- cat <<_LT_EOF 1>&2
-
-*** Warning: the GNU linker, at least up to release 2.19, is reported
-*** to be unable to reliably create shared libraries on AIX.
-*** Therefore, libtool is disabling shared libraries support. If you
-*** really care for shared libraries, you may want to install binutils
-*** 2.20 or above, or modify your PATH so that a non-GNU linker is found.
-*** You will then need to restart the configuration process.
-
-_LT_EOF
- fi
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)=''
- ;;
- m68k)
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- ;;
- esac
- ;;
-
- beos*)
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
- # support --undefined. This deserves some investigation. FIXME
- _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- cygwin* | mingw* | pw32* | cegcc*)
- # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
- # as there is no search path for DLLs.
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols'
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- _LT_TAGVAR(always_export_symbols, $1)=no
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
- _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
-
- if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- # If the export-symbols file already is a .def file, use it as
- # is; otherwise, prepend EXPORTS...
- _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
- cp $export_symbols $output_objdir/$soname.def;
- else
- echo EXPORTS > $output_objdir/$soname.def;
- cat $export_symbols >> $output_objdir/$soname.def;
- fi~
- $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- haiku*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- ;;
-
- os2*)
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- shrext_cmds=.dll
- _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
- $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
- $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
- $ECHO EXPORTS >> $output_objdir/$libname.def~
- emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
- $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
- emximp -o $lib $output_objdir/$libname.def'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
- $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
- $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
- $ECHO EXPORTS >> $output_objdir/$libname.def~
- prefix_cmds="$SED"~
- if test EXPORTS = "`$SED 1q $export_symbols`"; then
- prefix_cmds="$prefix_cmds -e 1d";
- fi~
- prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
- cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
- $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
- emximp -o $lib $output_objdir/$libname.def'
- _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
- ;;
-
- interix[[3-9]]*)
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
- # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
- # Instead, shared libraries are loaded at an image base (0x10000000 by
- # default) and relocated if they conflict, which is a slow very memory
- # consuming and fragmenting process. To avoid this, we pick a random,
- # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
- # time. Moving up from 0x10000000 also allows more sbrk(2) space.
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- ;;
-
- gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
- tmp_diet=no
- if test linux-dietlibc = "$host_os"; then
- case $cc_basename in
- diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn)
- esac
- fi
- if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
- && test no = "$tmp_diet"
- then
- tmp_addflag=' $pic_flag'
- tmp_sharedflag='-shared'
- case $cc_basename,$host_cpu in
- pgcc*) # Portland Group C compiler
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
- tmp_addflag=' $pic_flag'
- ;;
- pgf77* | pgf90* | pgf95* | pgfortran*)
- # Portland Group f77 and f90 compilers
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
- tmp_addflag=' $pic_flag -Mnomain' ;;
- ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64
- tmp_addflag=' -i_dynamic' ;;
- efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64
- tmp_addflag=' -i_dynamic -nofor_main' ;;
- ifc* | ifort*) # Intel Fortran compiler
- tmp_addflag=' -nofor_main' ;;
- lf95*) # Lahey Fortran 8.1
- _LT_TAGVAR(whole_archive_flag_spec, $1)=
- tmp_sharedflag='--shared' ;;
- nagfor*) # NAGFOR 5.3
- tmp_sharedflag='-Wl,-shared' ;;
- xl[[cC]]* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL C 8.0 on PPC (deal with xlf below)
- tmp_sharedflag='-qmkshrobj'
- tmp_addflag= ;;
- nvcc*) # Cuda Compiler Driver 2.2
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
- _LT_TAGVAR(compiler_needs_object, $1)=yes
- ;;
- esac
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*) # Sun C 5.9
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
- _LT_TAGVAR(compiler_needs_object, $1)=yes
- tmp_sharedflag='-G' ;;
- *Sun\ F*) # Sun Fortran 8.3
- tmp_sharedflag='-G' ;;
- esac
- _LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
-
- if test yes = "$supports_anon_versioning"; then
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
- fi
-
- case $cc_basename in
- tcc*)
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='-rdynamic'
- ;;
- xlf* | bgf* | bgxlf* | mpixlf*)
- # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
- _LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
- _LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
- if test yes = "$supports_anon_versioning"; then
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
- fi
- ;;
- esac
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- netbsd*)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
- wlarc=
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
- fi
- ;;
-
- solaris*)
- if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
- _LT_TAGVAR(ld_shlibs, $1)=no
- cat <<_LT_EOF 1>&2
-
-*** Warning: The releases 2.8.* of the GNU linker cannot reliably
-*** create shared libraries on Solaris systems. Therefore, libtool
-*** is disabling shared libraries support. We urge you to upgrade GNU
-*** binutils to release 2.9.1 or newer. Another option is to modify
-*** your PATH or compiler configuration so that the native linker is
-*** used, and then restart.
-
-_LT_EOF
- elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
- case `$LD -v 2>&1` in
- *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*)
- _LT_TAGVAR(ld_shlibs, $1)=no
- cat <<_LT_EOF 1>&2
-
-*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot
-*** reliably create shared libraries on SCO systems. Therefore, libtool
-*** is disabling shared libraries support. We urge you to upgrade GNU
-*** binutils to release 2.16.91.0.3 or newer. Another option is to modify
-*** your PATH or compiler configuration so that the native linker is
-*** used, and then restart.
-
-_LT_EOF
- ;;
- *)
- # For security reasons, it is highly recommended that you always
- # use absolute paths for naming shared libraries, and exclude the
- # DT_RUNPATH tag from executables and libraries. But doing so
- # requires that you compile everything twice, which is a pain.
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
- ;;
-
- sunos4*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
- wlarc=
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- *)
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
-
- if test no = "$_LT_TAGVAR(ld_shlibs, $1)"; then
- runpath_var=
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
- _LT_TAGVAR(export_dynamic_flag_spec, $1)=
- _LT_TAGVAR(whole_archive_flag_spec, $1)=
- fi
- else
- # PORTME fill in a description of your system's linker (not GNU ld)
- case $host_os in
- aix3*)
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- _LT_TAGVAR(always_export_symbols, $1)=yes
- _LT_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
- # Note: this linker hardcodes the directories in LIBPATH if there
- # are no directories specified by -L.
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then
- # Neither direct hardcoding nor static linking is supported with a
- # broken collect2.
- _LT_TAGVAR(hardcode_direct, $1)=unsupported
- fi
- ;;
-
- aix[[4-9]]*)
- if test ia64 = "$host_cpu"; then
- # On IA64, the linker does run time linking by default, so we don't
- # have to do anything special.
- aix_use_runtimelinking=no
- exp_sym_flag='-Bexport'
- no_entry_flag=
- else
- # If we're using GNU nm, then we don't want the "-C" option.
- # -C means demangle to GNU nm, but means don't demangle to AIX nm.
- # Without the "-l" option, or with the "-B" option, AIX nm treats
- # weak defined symbols like other global defined symbols, whereas
- # GNU nm marks them as "W".
- # While the 'weak' keyword is ignored in the Export File, we need
- # it in the Import File for the 'aix-soname' feature, so we have
- # to replace the "-B" option with "-P" for AIX nm.
- if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
- else
- _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
- fi
- aix_use_runtimelinking=no
-
- # Test if we are trying to use run time linking or normal
- # AIX style linking. If -brtl is somewhere in LDFLAGS, we
- # have runtime linking enabled, and use it for executables.
- # For shared libraries, we enable/disable runtime linking
- # depending on the kind of the shared library created -
- # when "with_aix_soname,aix_use_runtimelinking" is:
- # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables
- # "aix,yes" lib.so shared, rtl:yes, for executables
- # lib.a static archive
- # "both,no" lib.so.V(shr.o) shared, rtl:yes
- # lib.a(lib.so.V) shared, rtl:no, for executables
- # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
- # lib.a(lib.so.V) shared, rtl:no
- # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables
- # lib.a static archive
- case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
- for ld_flag in $LDFLAGS; do
- if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then
- aix_use_runtimelinking=yes
- break
- fi
- done
- if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
- # With aix-soname=svr4, we create the lib.so.V shared archives only,
- # so we don't have lib.a shared libs to link our executables.
- # We have to force runtime linking in this case.
- aix_use_runtimelinking=yes
- LDFLAGS="$LDFLAGS -Wl,-brtl"
- fi
- ;;
- esac
-
- exp_sym_flag='-bexport'
- no_entry_flag='-bnoentry'
- fi
-
- # When large executables or shared objects are built, AIX ld can
- # have problems creating the table of contents. If linking a library
- # or program results in "error TOC overflow" add -mminimal-toc to
- # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
- # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
-
- _LT_TAGVAR(archive_cmds, $1)=''
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(file_list_spec, $1)='$wl-f,'
- case $with_aix_soname,$aix_use_runtimelinking in
- aix,*) ;; # traditional, no import file
- svr4,* | *,yes) # use import file
- # The Import File defines what to hardcode.
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_direct_absolute, $1)=no
- ;;
- esac
-
- if test yes = "$GCC"; then
- case $host_os in aix4.[[012]]|aix4.[[012]].*)
- # We only want to do this on AIX 4.2 and lower, the check
- # below for broken collect2 doesn't work under 4.3+
- collect2name=`$CC -print-prog-name=collect2`
- if test -f "$collect2name" &&
- strings "$collect2name" | $GREP resolve_lib_name >/dev/null
- then
- # We have reworked collect2
- :
- else
- # We have old collect2
- _LT_TAGVAR(hardcode_direct, $1)=unsupported
- # It fails to find uninstalled libraries when the uninstalled
- # path is not listed in the libpath. Setting hardcode_minus_L
- # to unsupported forces relinking
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=
- fi
- ;;
- esac
- shared_flag='-shared'
- if test yes = "$aix_use_runtimelinking"; then
- shared_flag="$shared_flag "'$wl-G'
- fi
- # Need to ensure runtime linking is disabled for the traditional
- # shared library, or the linker may eventually find shared libraries
- # /with/ Import File - we do not want to mix them.
- shared_flag_aix='-shared'
- shared_flag_svr4='-shared $wl-G'
- else
- # not using gcc
- if test ia64 = "$host_cpu"; then
- # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
- # chokes on -Wl,-G. The following line is correct:
- shared_flag='-G'
- else
- if test yes = "$aix_use_runtimelinking"; then
- shared_flag='$wl-G'
- else
- shared_flag='$wl-bM:SRE'
- fi
- shared_flag_aix='$wl-bM:SRE'
- shared_flag_svr4='$wl-G'
- fi
- fi
-
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall'
- # It seems that -bexpall does not export symbols beginning with
- # underscore (_), so it is better to generate a list of symbols to export.
- _LT_TAGVAR(always_export_symbols, $1)=yes
- if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
- # Warning - without using the other runtime loading flags (-brtl),
- # -berok will link without error, but may produce a broken library.
- _LT_TAGVAR(allow_undefined_flag, $1)='-berok'
- # Determine the default libpath from the value encoded in an
- # empty executable.
- _LT_SYS_MODULE_PATH_AIX([$1])
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
- else
- if test ia64 = "$host_cpu"; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib'
- _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
- _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
- else
- # Determine the default libpath from the value encoded in an
- # empty executable.
- _LT_SYS_MODULE_PATH_AIX([$1])
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
- # Warning - without using the other run time loading flags,
- # -berok will link without error, but may produce a broken library.
- _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok'
- _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok'
- if test yes = "$with_gnu_ld"; then
- # We only use this code for GNU lds that support --whole-archive.
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
- else
- # Exported symbols can be pulled into shared objects from archives
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
- fi
- _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
- _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
- # -brtl affects multiple linker settings, -berok does not and is overridden later
- compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`'
- if test svr4 != "$with_aix_soname"; then
- # This is similar to how AIX traditionally builds its shared libraries.
- _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
- fi
- if test aix != "$with_aix_soname"; then
- _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
- else
- # used by -dlpreopen to get the symbols
- _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV $output_objdir/$realname.d/$soname $output_objdir'
- fi
- _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d'
- fi
- fi
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)=''
- ;;
- m68k)
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- ;;
- esac
- ;;
-
- bsdi[[45]]*)
- _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic
- ;;
-
- cygwin* | mingw* | pw32* | cegcc*)
- # When not using gcc, we currently assume that we are using
- # Microsoft Visual C++.
- # hardcode_libdir_flag_spec is actually meaningless, as there is
- # no search path for DLLs.
- case $cc_basename in
- cl*)
- # Native MSVC
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- _LT_TAGVAR(always_export_symbols, $1)=yes
- _LT_TAGVAR(file_list_spec, $1)='@'
- # Tell ltmain to make .lib files, not .a files.
- libext=lib
- # Tell ltmain to make .dll files, not .so files.
- shrext_cmds=.dll
- # FIXME: Setting linknames here is a bad hack.
- _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
- _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
- cp "$export_symbols" "$output_objdir/$soname.def";
- echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
- else
- $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
- fi~
- $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
- linknames='
- # The linker will not automatically build a static lib if we build a DLL.
- # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
- _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1,DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols'
- # Don't use ranlib
- _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
- _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
- lt_tool_outputfile="@TOOL_OUTPUT@"~
- case $lt_outputfile in
- *.exe|*.EXE) ;;
- *)
- lt_outputfile=$lt_outputfile.exe
- lt_tool_outputfile=$lt_tool_outputfile.exe
- ;;
- esac~
- if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
- $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
- $RM "$lt_outputfile.manifest";
- fi'
- ;;
- *)
- # Assume MSVC wrapper
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- # Tell ltmain to make .lib files, not .a files.
- libext=lib
- # Tell ltmain to make .dll files, not .so files.
- shrext_cmds=.dll
- # FIXME: Setting linknames here is a bad hack.
- _LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
- # The linker will automatically build a .lib file if we build a DLL.
- _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
- # FIXME: Should let the user specify the lib program.
- _LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs'
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
- ;;
- esac
- ;;
-
- darwin* | rhapsody*)
- _LT_DARWIN_LINKER_FEATURES($1)
- ;;
-
- dgux*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
- # support. Future versions do this automatically, but an explicit c++rt0.o
- # does not break anything, and helps significantly (at the cost of a little
- # extra space).
- freebsd2.2*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- # Unfortunately, older versions of FreeBSD 2 do not have this feature.
- freebsd2.*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
- freebsd* | dragonfly*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- hpux9*)
- if test yes = "$GCC"; then
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
- else
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
- fi
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(hardcode_direct, $1)=yes
-
- # hardcode_minus_L: Not really in the search PATH,
- # but as the default location of the library.
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
- ;;
-
- hpux10*)
- if test yes,no = "$GCC,$with_gnu_ld"; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
- else
- _LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
- fi
- if test no = "$with_gnu_ld"; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
- # hardcode_minus_L: Not really in the search PATH,
- # but as the default location of the library.
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- fi
- ;;
-
- hpux11*)
- if test yes,no = "$GCC,$with_gnu_ld"; then
- case $host_cpu in
- hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- else
- case $host_cpu in
- hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- *)
- m4_if($1, [], [
- # Older versions of the 11.00 compiler do not understand -b yet
- # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
- _LT_LINKER_OPTION([if $CC understands -b],
- _LT_TAGVAR(lt_cv_prog_compiler__b, $1), [-b],
- [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'],
- [_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'])],
- [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'])
- ;;
- esac
- fi
- if test no = "$with_gnu_ld"; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- case $host_cpu in
- hppa*64*|ia64*)
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
- *)
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
-
- # hardcode_minus_L: Not really in the search PATH,
- # but as the default location of the library.
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- ;;
- esac
- fi
- ;;
-
- irix5* | irix6* | nonstopux*)
- if test yes = "$GCC"; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
- # Try to use the -exported_symbol ld option, if it does not
- # work, assume that -exports_file does not work either and
- # implicitly export all symbols.
- # This should be the same for all languages, so no per-tag cache variable.
- AC_CACHE_CHECK([whether the $host_os linker accepts -exported_symbol],
- [lt_cv_irix_exported_symbol],
- [save_LDFLAGS=$LDFLAGS
- LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null"
- AC_LINK_IFELSE(
- [AC_LANG_SOURCE(
- [AC_LANG_CASE([C], [[int foo (void) { return 0; }]],
- [C++], [[int foo (void) { return 0; }]],
- [Fortran 77], [[
- subroutine foo
- end]],
- [Fortran], [[
- subroutine foo
- end]])])],
- [lt_cv_irix_exported_symbol=yes],
- [lt_cv_irix_exported_symbol=no])
- LDFLAGS=$save_LDFLAGS])
- if test yes = "$lt_cv_irix_exported_symbol"; then
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
- fi
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib'
- fi
- _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(inherit_rpath, $1)=yes
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- ;;
-
- linux*)
- case $cc_basename in
- tcc*)
- # Fabrice Bellard et al's Tiny C Compiler
- _LT_TAGVAR(ld_shlibs, $1)=yes
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- ;;
-
- netbsd*)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out
- else
- _LT_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF
- fi
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- newsos6)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- *nto* | *qnx*)
- ;;
-
- openbsd* | bitrig*)
- if test -f /usr/libexec/ld.so; then
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
- fi
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- os2*)
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- shrext_cmds=.dll
- _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
- $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
- $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
- $ECHO EXPORTS >> $output_objdir/$libname.def~
- emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
- $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
- emximp -o $lib $output_objdir/$libname.def'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
- $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
- $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
- $ECHO EXPORTS >> $output_objdir/$libname.def~
- prefix_cmds="$SED"~
- if test EXPORTS = "`$SED 1q $export_symbols`"; then
- prefix_cmds="$prefix_cmds -e 1d";
- fi~
- prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
- cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
- $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
- emximp -o $lib $output_objdir/$libname.def'
- _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
- ;;
-
- osf3*)
- if test yes = "$GCC"; then
- _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
- else
- _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
- fi
- _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- ;;
-
- osf4* | osf5*) # as osf3* with the addition of -msym flag
- if test yes = "$GCC"; then
- _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
- else
- _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
- $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp'
-
- # Both c and cxx compiler support -rpath directly
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
- fi
- _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- ;;
-
- solaris*)
- _LT_TAGVAR(no_undefined_flag, $1)=' -z defs'
- if test yes = "$GCC"; then
- wlarc='$wl'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
- else
- case `$CC -V 2>&1` in
- *"Compilers 5.0"*)
- wlarc=''
- _LT_TAGVAR(archive_cmds, $1)='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
- ;;
- *)
- wlarc='$wl'
- _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
- ;;
- esac
- fi
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- case $host_os in
- solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
- *)
- # The compiler driver will combine and reorder linker options,
- # but understands '-z linker_flag'. GCC discards it without '$wl',
- # but is careful enough not to reorder.
- # Supported since Solaris 2.6 (maybe 2.5.1?)
- if test yes = "$GCC"; then
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
- else
- _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
- fi
- ;;
- esac
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- ;;
-
- sunos4*)
- if test sequent = "$host_vendor"; then
- # Use $CC to link under sequent, because it throws in some extra .o
- # files that make .init and .fini sections work.
- _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags'
- else
- _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
- fi
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- sysv4)
- case $host_vendor in
- sni)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_direct, $1)=yes # is this really true???
- ;;
- siemens)
- ## LD is ld it makes a PLAMLIB
- ## CC just makes a GrossModule.
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs'
- _LT_TAGVAR(hardcode_direct, $1)=no
- ;;
- motorola)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie
- ;;
- esac
- runpath_var='LD_RUN_PATH'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- sysv4.3*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport'
- ;;
-
- sysv4*MP*)
- if test -d /usr/nec; then
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- runpath_var=LD_RUN_PATH
- hardcode_runpath_var=yes
- _LT_TAGVAR(ld_shlibs, $1)=yes
- fi
- ;;
-
- sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
- _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- runpath_var='LD_RUN_PATH'
-
- if test yes = "$GCC"; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- fi
- ;;
-
- sysv5* | sco3.2v5* | sco5v6*)
- # Note: We CANNOT use -z defs as we might desire, because we do not
- # link with -lc, and that would cause any symbols used from libc to
- # always be unresolved, which means just about no library would
- # ever link correctly. If we're not using GNU ld we use -z text
- # though, which does catch some bad symbols but isn't as heavy-handed
- # as -z defs.
- _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
- _LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport'
- runpath_var='LD_RUN_PATH'
-
- if test yes = "$GCC"; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- fi
- ;;
-
- uts4*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- *)
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
-
- if test sni = "$host_vendor"; then
- case $host in
- sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Blargedynsym'
- ;;
- esac
- fi
- fi
-])
-AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
-test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no
-
-_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld
-
-_LT_DECL([], [libext], [0], [Old archive suffix (normally "a")])dnl
-_LT_DECL([], [shrext_cmds], [1], [Shared library suffix (normally ".so")])dnl
-_LT_DECL([], [extract_expsyms_cmds], [2],
- [The commands to extract the exported symbol list from a shared archive])
-
-#
-# Do we need to explicitly link libc?
-#
-case "x$_LT_TAGVAR(archive_cmds_need_lc, $1)" in
-x|xyes)
- # Assume -lc should be added
- _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
-
- if test yes,yes = "$GCC,$enable_shared"; then
- case $_LT_TAGVAR(archive_cmds, $1) in
- *'~'*)
- # FIXME: we may have to deal with multi-command sequences.
- ;;
- '$CC '*)
- # Test whether the compiler implicitly links with -lc since on some
- # systems, -lgcc has to come before -lc. If gcc already passes -lc
- # to ld, don't add -lc before -lgcc.
- AC_CACHE_CHECK([whether -lc should be explicitly linked in],
- [lt_cv_]_LT_TAGVAR(archive_cmds_need_lc, $1),
- [$RM conftest*
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
- if AC_TRY_EVAL(ac_compile) 2>conftest.err; then
- soname=conftest
- lib=conftest
- libobjs=conftest.$ac_objext
- deplibs=
- wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1)
- pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1)
- compiler_flags=-v
- linker_flags=-v
- verstring=
- output_objdir=.
- libname=conftest
- lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1)
- _LT_TAGVAR(allow_undefined_flag, $1)=
- if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1)
- then
- lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=no
- else
- lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=yes
- fi
- _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag
- else
- cat conftest.err 1>&5
- fi
- $RM conftest*
- ])
- _LT_TAGVAR(archive_cmds_need_lc, $1)=$lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)
- ;;
- esac
- fi
- ;;
-esac
-
-_LT_TAGDECL([build_libtool_need_lc], [archive_cmds_need_lc], [0],
- [Whether or not to add -lc for building shared libraries])
-_LT_TAGDECL([allow_libtool_libs_with_static_runtimes],
- [enable_shared_with_static_runtimes], [0],
- [Whether or not to disallow shared libs when runtime libs are static])
-_LT_TAGDECL([], [export_dynamic_flag_spec], [1],
- [Compiler flag to allow reflexive dlopens])
-_LT_TAGDECL([], [whole_archive_flag_spec], [1],
- [Compiler flag to generate shared objects directly from archives])
-_LT_TAGDECL([], [compiler_needs_object], [1],
- [Whether the compiler copes with passing no objects directly])
-_LT_TAGDECL([], [old_archive_from_new_cmds], [2],
- [Create an old-style archive from a shared archive])
-_LT_TAGDECL([], [old_archive_from_expsyms_cmds], [2],
- [Create a temporary old-style archive to link instead of a shared archive])
-_LT_TAGDECL([], [archive_cmds], [2], [Commands used to build a shared archive])
-_LT_TAGDECL([], [archive_expsym_cmds], [2])
-_LT_TAGDECL([], [module_cmds], [2],
- [Commands used to build a loadable module if different from building
- a shared archive.])
-_LT_TAGDECL([], [module_expsym_cmds], [2])
-_LT_TAGDECL([], [with_gnu_ld], [1],
- [Whether we are building with GNU ld or not])
-_LT_TAGDECL([], [allow_undefined_flag], [1],
- [Flag that allows shared libraries with undefined symbols to be built])
-_LT_TAGDECL([], [no_undefined_flag], [1],
- [Flag that enforces no undefined symbols])
-_LT_TAGDECL([], [hardcode_libdir_flag_spec], [1],
- [Flag to hardcode $libdir into a binary during linking.
- This must work even if $libdir does not exist])
-_LT_TAGDECL([], [hardcode_libdir_separator], [1],
- [Whether we need a single "-rpath" flag with a separated argument])
-_LT_TAGDECL([], [hardcode_direct], [0],
- [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
- DIR into the resulting binary])
-_LT_TAGDECL([], [hardcode_direct_absolute], [0],
- [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
- DIR into the resulting binary and the resulting library dependency is
- "absolute", i.e impossible to change by setting $shlibpath_var if the
- library is relocated])
-_LT_TAGDECL([], [hardcode_minus_L], [0],
- [Set to "yes" if using the -LDIR flag during linking hardcodes DIR
- into the resulting binary])
-_LT_TAGDECL([], [hardcode_shlibpath_var], [0],
- [Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
- into the resulting binary])
-_LT_TAGDECL([], [hardcode_automatic], [0],
- [Set to "yes" if building a shared library automatically hardcodes DIR
- into the library and all subsequent libraries and executables linked
- against it])
-_LT_TAGDECL([], [inherit_rpath], [0],
- [Set to yes if linker adds runtime paths of dependent libraries
- to runtime path list])
-_LT_TAGDECL([], [link_all_deplibs], [0],
- [Whether libtool must link a program against all its dependency libraries])
-_LT_TAGDECL([], [always_export_symbols], [0],
- [Set to "yes" if exported symbols are required])
-_LT_TAGDECL([], [export_symbols_cmds], [2],
- [The commands to list exported symbols])
-_LT_TAGDECL([], [exclude_expsyms], [1],
- [Symbols that should not be listed in the preloaded symbols])
-_LT_TAGDECL([], [include_expsyms], [1],
- [Symbols that must always be exported])
-_LT_TAGDECL([], [prelink_cmds], [2],
- [Commands necessary for linking programs (against libraries) with templates])
-_LT_TAGDECL([], [postlink_cmds], [2],
- [Commands necessary for finishing linking programs])
-_LT_TAGDECL([], [file_list_spec], [1],
- [Specify filename containing input files])
-dnl FIXME: Not yet implemented
-dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1],
-dnl [Compiler flag to generate thread safe objects])
-])# _LT_LINKER_SHLIBS
-
-
-# _LT_LANG_C_CONFIG([TAG])
-# ------------------------
-# Ensure that the configuration variables for a C compiler are suitably
-# defined. These variables are subsequently used by _LT_CONFIG to write
-# the compiler configuration to 'libtool'.
-m4_defun([_LT_LANG_C_CONFIG],
-[m4_require([_LT_DECL_EGREP])dnl
-lt_save_CC=$CC
-AC_LANG_PUSH(C)
-
-# Source file extension for C test sources.
-ac_ext=c
-
-# Object file extension for compiled C test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# Code to be used in simple compile tests
-lt_simple_compile_test_code="int some_variable = 0;"
-
-# Code to be used in simple link tests
-lt_simple_link_test_code='int main(){return(0);}'
-
-_LT_TAG_COMPILER
-# Save the default compiler, since it gets overwritten when the other
-# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
-compiler_DEFAULT=$CC
-
-# save warnings/boilerplate of simple test code
-_LT_COMPILER_BOILERPLATE
-_LT_LINKER_BOILERPLATE
-
-## CAVEAT EMPTOR:
-## There is no encapsulation within the following macros, do not change
-## the running order or otherwise move them around unless you know exactly
-## what you are doing...
-if test -n "$compiler"; then
- _LT_COMPILER_NO_RTTI($1)
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_SYS_DYNAMIC_LINKER($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
- LT_SYS_DLOPEN_SELF
- _LT_CMD_STRIPLIB
-
- # Report what library types will actually be built
- AC_MSG_CHECKING([if libtool supports shared libraries])
- AC_MSG_RESULT([$can_build_shared])
-
- AC_MSG_CHECKING([whether to build shared libraries])
- test no = "$can_build_shared" && enable_shared=no
-
- # On AIX, shared libraries and static libraries use the same namespace, and
- # are all built from PIC.
- case $host_os in
- aix3*)
- test yes = "$enable_shared" && enable_static=no
- if test -n "$RANLIB"; then
- archive_cmds="$archive_cmds~\$RANLIB \$lib"
- postinstall_cmds='$RANLIB $lib'
- fi
- ;;
-
- aix[[4-9]]*)
- if test ia64 != "$host_cpu"; then
- case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
- yes,aix,yes) ;; # shared object as lib.so file only
- yes,svr4,*) ;; # shared object as lib.so archive member only
- yes,*) enable_static=no ;; # shared object in lib.a archive as well
- esac
- fi
- ;;
- esac
- AC_MSG_RESULT([$enable_shared])
-
- AC_MSG_CHECKING([whether to build static libraries])
- # Make sure either enable_shared or enable_static is yes.
- test yes = "$enable_shared" || enable_static=yes
- AC_MSG_RESULT([$enable_static])
-
- _LT_CONFIG($1)
-fi
-AC_LANG_POP
-CC=$lt_save_CC
-])# _LT_LANG_C_CONFIG
-
-
-# _LT_LANG_CXX_CONFIG([TAG])
-# --------------------------
-# Ensure that the configuration variables for a C++ compiler are suitably
-# defined. These variables are subsequently used by _LT_CONFIG to write
-# the compiler configuration to 'libtool'.
-m4_defun([_LT_LANG_CXX_CONFIG],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_EGREP])dnl
-m4_require([_LT_PATH_MANIFEST_TOOL])dnl
-if test -n "$CXX" && ( test no != "$CXX" &&
- ( (test g++ = "$CXX" && `g++ -v >/dev/null 2>&1` ) ||
- (test g++ != "$CXX"))); then
- AC_PROG_CXXCPP
-else
- _lt_caught_CXX_error=yes
-fi
-
-AC_LANG_PUSH(C++)
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-_LT_TAGVAR(allow_undefined_flag, $1)=
-_LT_TAGVAR(always_export_symbols, $1)=no
-_LT_TAGVAR(archive_expsym_cmds, $1)=
-_LT_TAGVAR(compiler_needs_object, $1)=no
-_LT_TAGVAR(export_dynamic_flag_spec, $1)=
-_LT_TAGVAR(hardcode_direct, $1)=no
-_LT_TAGVAR(hardcode_direct_absolute, $1)=no
-_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-_LT_TAGVAR(hardcode_libdir_separator, $1)=
-_LT_TAGVAR(hardcode_minus_L, $1)=no
-_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
-_LT_TAGVAR(hardcode_automatic, $1)=no
-_LT_TAGVAR(inherit_rpath, $1)=no
-_LT_TAGVAR(module_cmds, $1)=
-_LT_TAGVAR(module_expsym_cmds, $1)=
-_LT_TAGVAR(link_all_deplibs, $1)=unknown
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-_LT_TAGVAR(reload_flag, $1)=$reload_flag
-_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
-_LT_TAGVAR(no_undefined_flag, $1)=
-_LT_TAGVAR(whole_archive_flag_spec, $1)=
-_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
-
-# Source file extension for C++ test sources.
-ac_ext=cpp
-
-# Object file extension for compiled C++ test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# No sense in running all these tests if we already determined that
-# the CXX compiler isn't working. Some variables (like enable_shared)
-# are currently assumed to apply to all compilers on this platform,
-# and will be corrupted by setting them based on a non-working compiler.
-if test yes != "$_lt_caught_CXX_error"; then
- # Code to be used in simple compile tests
- lt_simple_compile_test_code="int some_variable = 0;"
-
- # Code to be used in simple link tests
- lt_simple_link_test_code='int main(int, char *[[]]) { return(0); }'
-
- # ltmain only uses $CC for tagged configurations so make sure $CC is set.
- _LT_TAG_COMPILER
-
- # save warnings/boilerplate of simple test code
- _LT_COMPILER_BOILERPLATE
- _LT_LINKER_BOILERPLATE
-
- # Allow CC to be a program name with arguments.
- lt_save_CC=$CC
- lt_save_CFLAGS=$CFLAGS
- lt_save_LD=$LD
- lt_save_GCC=$GCC
- GCC=$GXX
- lt_save_with_gnu_ld=$with_gnu_ld
- lt_save_path_LD=$lt_cv_path_LD
- if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
- lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
- else
- $as_unset lt_cv_prog_gnu_ld
- fi
- if test -n "${lt_cv_path_LDCXX+set}"; then
- lt_cv_path_LD=$lt_cv_path_LDCXX
- else
- $as_unset lt_cv_path_LD
- fi
- test -z "${LDCXX+set}" || LD=$LDCXX
- CC=${CXX-"c++"}
- CFLAGS=$CXXFLAGS
- compiler=$CC
- _LT_TAGVAR(compiler, $1)=$CC
- _LT_CC_BASENAME([$compiler])
-
- if test -n "$compiler"; then
- # We don't want -fno-exception when compiling C++ code, so set the
- # no_builtin_flag separately
- if test yes = "$GXX"; then
- _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
- else
- _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
- fi
-
- if test yes = "$GXX"; then
- # Set up default GNU C++ configuration
-
- LT_PATH_LD
-
- # Check if GNU C++ uses GNU ld as the underlying linker, since the
- # archiving commands below assume that GNU ld is being used.
- if test yes = "$with_gnu_ld"; then
- _LT_TAGVAR(archive_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
-
- # If archive_cmds runs LD, not CC, wlarc should be empty
- # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
- # investigate it a little bit more. (MM)
- wlarc='$wl'
-
- # ancient GNU ld didn't support --whole-archive et. al.
- if eval "`$CC -print-prog-name=ld` --help 2>&1" |
- $GREP 'no-whole-archive' > /dev/null; then
- _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
- else
- _LT_TAGVAR(whole_archive_flag_spec, $1)=
- fi
- else
- with_gnu_ld=no
- wlarc=
-
- # A generic and very simple default shared library creation
- # command for GNU C++ for the case where it uses the native
- # linker, instead of GNU ld. If possible, this setting should
- # overridden to take advantage of the native linker features on
- # the platform it is being used on.
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
- fi
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
-
- else
- GXX=no
- with_gnu_ld=no
- wlarc=
- fi
-
- # PORTME: fill in a description of your system's C++ link characteristics
- AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
- _LT_TAGVAR(ld_shlibs, $1)=yes
- case $host_os in
- aix3*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- aix[[4-9]]*)
- if test ia64 = "$host_cpu"; then
- # On IA64, the linker does run time linking by default, so we don't
- # have to do anything special.
- aix_use_runtimelinking=no
- exp_sym_flag='-Bexport'
- no_entry_flag=
- else
- aix_use_runtimelinking=no
-
- # Test if we are trying to use run time linking or normal
- # AIX style linking. If -brtl is somewhere in LDFLAGS, we
- # have runtime linking enabled, and use it for executables.
- # For shared libraries, we enable/disable runtime linking
- # depending on the kind of the shared library created -
- # when "with_aix_soname,aix_use_runtimelinking" is:
- # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables
- # "aix,yes" lib.so shared, rtl:yes, for executables
- # lib.a static archive
- # "both,no" lib.so.V(shr.o) shared, rtl:yes
- # lib.a(lib.so.V) shared, rtl:no, for executables
- # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
- # lib.a(lib.so.V) shared, rtl:no
- # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables
- # lib.a static archive
- case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
- for ld_flag in $LDFLAGS; do
- case $ld_flag in
- *-brtl*)
- aix_use_runtimelinking=yes
- break
- ;;
- esac
- done
- if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
- # With aix-soname=svr4, we create the lib.so.V shared archives only,
- # so we don't have lib.a shared libs to link our executables.
- # We have to force runtime linking in this case.
- aix_use_runtimelinking=yes
- LDFLAGS="$LDFLAGS -Wl,-brtl"
- fi
- ;;
- esac
-
- exp_sym_flag='-bexport'
- no_entry_flag='-bnoentry'
- fi
-
- # When large executables or shared objects are built, AIX ld can
- # have problems creating the table of contents. If linking a library
- # or program results in "error TOC overflow" add -mminimal-toc to
- # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
- # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
-
- _LT_TAGVAR(archive_cmds, $1)=''
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(file_list_spec, $1)='$wl-f,'
- case $with_aix_soname,$aix_use_runtimelinking in
- aix,*) ;; # no import file
- svr4,* | *,yes) # use import file
- # The Import File defines what to hardcode.
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_direct_absolute, $1)=no
- ;;
- esac
-
- if test yes = "$GXX"; then
- case $host_os in aix4.[[012]]|aix4.[[012]].*)
- # We only want to do this on AIX 4.2 and lower, the check
- # below for broken collect2 doesn't work under 4.3+
- collect2name=`$CC -print-prog-name=collect2`
- if test -f "$collect2name" &&
- strings "$collect2name" | $GREP resolve_lib_name >/dev/null
- then
- # We have reworked collect2
- :
- else
- # We have old collect2
- _LT_TAGVAR(hardcode_direct, $1)=unsupported
- # It fails to find uninstalled libraries when the uninstalled
- # path is not listed in the libpath. Setting hardcode_minus_L
- # to unsupported forces relinking
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=
- fi
- esac
- shared_flag='-shared'
- if test yes = "$aix_use_runtimelinking"; then
- shared_flag=$shared_flag' $wl-G'
- fi
- # Need to ensure runtime linking is disabled for the traditional
- # shared library, or the linker may eventually find shared libraries
- # /with/ Import File - we do not want to mix them.
- shared_flag_aix='-shared'
- shared_flag_svr4='-shared $wl-G'
- else
- # not using gcc
- if test ia64 = "$host_cpu"; then
- # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
- # chokes on -Wl,-G. The following line is correct:
- shared_flag='-G'
- else
- if test yes = "$aix_use_runtimelinking"; then
- shared_flag='$wl-G'
- else
- shared_flag='$wl-bM:SRE'
- fi
- shared_flag_aix='$wl-bM:SRE'
- shared_flag_svr4='$wl-G'
- fi
- fi
-
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall'
- # It seems that -bexpall does not export symbols beginning with
- # underscore (_), so it is better to generate a list of symbols to
- # export.
- _LT_TAGVAR(always_export_symbols, $1)=yes
- if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
- # Warning - without using the other runtime loading flags (-brtl),
- # -berok will link without error, but may produce a broken library.
- # The "-G" linker flag allows undefined symbols.
- _LT_TAGVAR(no_undefined_flag, $1)='-bernotok'
- # Determine the default libpath from the value encoded in an empty
- # executable.
- _LT_SYS_MODULE_PATH_AIX([$1])
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
-
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
- else
- if test ia64 = "$host_cpu"; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib'
- _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
- _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
- else
- # Determine the default libpath from the value encoded in an
- # empty executable.
- _LT_SYS_MODULE_PATH_AIX([$1])
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
- # Warning - without using the other run time loading flags,
- # -berok will link without error, but may produce a broken library.
- _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok'
- _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok'
- if test yes = "$with_gnu_ld"; then
- # We only use this code for GNU lds that support --whole-archive.
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
- else
- # Exported symbols can be pulled into shared objects from archives
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
- fi
- _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
- _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
- # -brtl affects multiple linker settings, -berok does not and is overridden later
- compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`'
- if test svr4 != "$with_aix_soname"; then
- # This is similar to how AIX traditionally builds its shared
- # libraries. Need -bnortl late, we may have -brtl in LDFLAGS.
- _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
- fi
- if test aix != "$with_aix_soname"; then
- _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
- else
- # used by -dlpreopen to get the symbols
- _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV $output_objdir/$realname.d/$soname $output_objdir'
- fi
- _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d'
- fi
- fi
- ;;
-
- beos*)
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
- # support --undefined. This deserves some investigation. FIXME
- _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- chorus*)
- case $cc_basename in
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
- ;;
-
- cygwin* | mingw* | pw32* | cegcc*)
- case $GXX,$cc_basename in
- ,cl* | no,cl*)
- # Native MSVC
- # hardcode_libdir_flag_spec is actually meaningless, as there is
- # no search path for DLLs.
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- _LT_TAGVAR(always_export_symbols, $1)=yes
- _LT_TAGVAR(file_list_spec, $1)='@'
- # Tell ltmain to make .lib files, not .a files.
- libext=lib
- # Tell ltmain to make .dll files, not .so files.
- shrext_cmds=.dll
- # FIXME: Setting linknames here is a bad hack.
- _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
- _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
- cp "$export_symbols" "$output_objdir/$soname.def";
- echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
- else
- $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
- fi~
- $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
- linknames='
- # The linker will not automatically build a static lib if we build a DLL.
- # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
- # Don't use ranlib
- _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
- _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
- lt_tool_outputfile="@TOOL_OUTPUT@"~
- case $lt_outputfile in
- *.exe|*.EXE) ;;
- *)
- lt_outputfile=$lt_outputfile.exe
- lt_tool_outputfile=$lt_tool_outputfile.exe
- ;;
- esac~
- func_to_tool_file "$lt_outputfile"~
- if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
- $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
- $RM "$lt_outputfile.manifest";
- fi'
- ;;
- *)
- # g++
- # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
- # as there is no search path for DLLs.
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols'
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- _LT_TAGVAR(always_export_symbols, $1)=no
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
-
- if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- # If the export-symbols file already is a .def file, use it as
- # is; otherwise, prepend EXPORTS...
- _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
- cp $export_symbols $output_objdir/$soname.def;
- else
- echo EXPORTS > $output_objdir/$soname.def;
- cat $export_symbols >> $output_objdir/$soname.def;
- fi~
- $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
- ;;
- darwin* | rhapsody*)
- _LT_DARWIN_LINKER_FEATURES($1)
- ;;
-
- os2*)
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- shrext_cmds=.dll
- _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
- $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
- $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
- $ECHO EXPORTS >> $output_objdir/$libname.def~
- emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
- $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
- emximp -o $lib $output_objdir/$libname.def'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
- $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
- $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
- $ECHO EXPORTS >> $output_objdir/$libname.def~
- prefix_cmds="$SED"~
- if test EXPORTS = "`$SED 1q $export_symbols`"; then
- prefix_cmds="$prefix_cmds -e 1d";
- fi~
- prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
- cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
- $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
- emximp -o $lib $output_objdir/$libname.def'
- _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
- ;;
-
- dgux*)
- case $cc_basename in
- ec++*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- ghcx*)
- # Green Hills C++ Compiler
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
- ;;
-
- freebsd2.*)
- # C++ shared libraries reported to be fairly broken before
- # switch to ELF
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- freebsd-elf*)
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- ;;
-
- freebsd* | dragonfly*)
- # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
- # conventions
- _LT_TAGVAR(ld_shlibs, $1)=yes
- ;;
-
- haiku*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- ;;
-
- hpux9*)
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
- # but as the default
- # location of the library.
-
- case $cc_basename in
- CC*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- aCC*)
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- #
- # There doesn't appear to be a way to prevent this compiler from
- # explicitly linking system object files so we need to strip them
- # from the output so that they don't get included in the library
- # dependencies.
- output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
- ;;
- *)
- if test yes = "$GXX"; then
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
- else
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
- ;;
-
- hpux10*|hpux11*)
- if test no = "$with_gnu_ld"; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- case $host_cpu in
- hppa*64*|ia64*)
- ;;
- *)
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
- ;;
- esac
- fi
- case $host_cpu in
- hppa*64*|ia64*)
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
- *)
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
- # but as the default
- # location of the library.
- ;;
- esac
-
- case $cc_basename in
- CC*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- aCC*)
- case $host_cpu in
- hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- esac
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- #
- # There doesn't appear to be a way to prevent this compiler from
- # explicitly linking system object files so we need to strip them
- # from the output so that they don't get included in the library
- # dependencies.
- output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
- ;;
- *)
- if test yes = "$GXX"; then
- if test no = "$with_gnu_ld"; then
- case $host_cpu in
- hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- esac
- fi
- else
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
- ;;
-
- interix[[3-9]]*)
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
- # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
- # Instead, shared libraries are loaded at an image base (0x10000000 by
- # default) and relocated if they conflict, which is a slow very memory
- # consuming and fragmenting process. To avoid this, we pick a random,
- # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
- # time. Moving up from 0x10000000 also allows more sbrk(2) space.
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- ;;
- irix5* | irix6*)
- case $cc_basename in
- CC*)
- # SGI C++
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
-
- # Archives containing C++ object files must be created using
- # "CC -ar", where "CC" is the IRIX C++ compiler. This is
- # necessary to make sure instantiated templates are included
- # in the archive.
- _LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs'
- ;;
- *)
- if test yes = "$GXX"; then
- if test no = "$with_gnu_ld"; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` -o $lib'
- fi
- fi
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- ;;
- esac
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(inherit_rpath, $1)=yes
- ;;
-
- linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
- case $cc_basename in
- KCC*)
- # Kuck and Associates, Inc. (KAI) C++ Compiler
-
- # KCC will only create a shared library if the output file
- # ends with ".so" (or ".sl" for HP-UX), so rename the library
- # to its proper name (with version) after linking.
- _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib'
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- #
- # There doesn't appear to be a way to prevent this compiler from
- # explicitly linking system object files so we need to strip them
- # from the output so that they don't get included in the library
- # dependencies.
- output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
-
- # Archives containing C++ object files must be created using
- # "CC -Bstatic", where "CC" is the KAI C++ compiler.
- _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs'
- ;;
- icpc* | ecpc* )
- # Intel C++
- with_gnu_ld=yes
- # version 8.0 and above of icpc choke on multiply defined symbols
- # if we add $predep_objects and $postdep_objects, however 7.1 and
- # earlier do not add the objects themselves.
- case `$CC -V 2>&1` in
- *"Version 7."*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
- ;;
- *) # Version 8.0 or newer
- tmp_idyn=
- case $host_cpu in
- ia64*) tmp_idyn=' -i_dynamic';;
- esac
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
- ;;
- esac
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
- ;;
- pgCC* | pgcpp*)
- # Portland Group C++ compiler
- case `$CC -V` in
- *pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*)
- _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
- compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
- _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
- $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
- $RANLIB $oldlib'
- _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
- $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
- $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
- ;;
- *) # Version 6 and above use weak symbols
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
- ;;
- esac
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl--rpath $wl$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
- ;;
- cxx*)
- # Compaq C++
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib $wl-retain-symbols-file $wl$export_symbols'
-
- runpath_var=LD_RUN_PATH
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- #
- # There doesn't appear to be a way to prevent this compiler from
- # explicitly linking system object files so we need to strip them
- # from the output so that they don't get included in the library
- # dependencies.
- output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
- ;;
- xl* | mpixl* | bgxl*)
- # IBM XL 8.0 on PPC, with GNU ld
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
- _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- if test yes = "$supports_anon_versioning"; then
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
- fi
- ;;
- *)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*)
- # Sun C++ 5.9
- _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
- _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file $wl$export_symbols'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
- _LT_TAGVAR(compiler_needs_object, $1)=yes
-
- # Not sure whether something based on
- # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
- # would be better.
- output_verbose_link_cmd='func_echo_all'
-
- # Archives containing C++ object files must be created using
- # "CC -xar", where "CC" is the Sun C++ compiler. This is
- # necessary to make sure instantiated templates are included
- # in the archive.
- _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
- ;;
- esac
- ;;
- esac
- ;;
-
- lynxos*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- m88k*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- mvs*)
- case $cc_basename in
- cxx*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
- ;;
-
- netbsd*)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
- wlarc=
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- fi
- # Workaround some broken pre-1.5 toolchains
- output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
- ;;
-
- *nto* | *qnx*)
- _LT_TAGVAR(ld_shlibs, $1)=yes
- ;;
-
- openbsd* | bitrig*)
- if test -f /usr/libexec/ld.so; then
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
- if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file,$export_symbols -o $lib'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
- _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
- fi
- output_verbose_link_cmd=func_echo_all
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- osf3* | osf4* | osf5*)
- case $cc_basename in
- KCC*)
- # Kuck and Associates, Inc. (KAI) C++ Compiler
-
- # KCC will only create a shared library if the output file
- # ends with ".so" (or ".sl" for HP-UX), so rename the library
- # to its proper name (with version) after linking.
- _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- # Archives containing C++ object files must be created using
- # the KAI C++ compiler.
- case $host in
- osf3*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;;
- *) _LT_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs' ;;
- esac
- ;;
- RCC*)
- # Rational C++ 2.4.1
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- cxx*)
- case $host in
- osf3*)
- _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $soname `test -n "$verstring" && func_echo_all "$wl-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
- ;;
- *)
- _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
- echo "-hidden">> $lib.exp~
- $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname $wl-input $wl$lib.exp `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~
- $RM $lib.exp'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
- ;;
- esac
-
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- #
- # There doesn't appear to be a way to prevent this compiler from
- # explicitly linking system object files so we need to strip them
- # from the output so that they don't get included in the library
- # dependencies.
- output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
- ;;
- *)
- if test yes,no = "$GXX,$with_gnu_ld"; then
- _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
- case $host in
- osf3*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
- ;;
- esac
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
-
- else
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
- ;;
-
- psos*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- sunos4*)
- case $cc_basename in
- CC*)
- # Sun C++ 4.x
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- lcc*)
- # Lucid
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
- ;;
-
- solaris*)
- case $cc_basename in
- CC* | sunCC*)
- # Sun C++ 4.2, 5.x and Centerline C++
- _LT_TAGVAR(archive_cmds_need_lc,$1)=yes
- _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
- _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -G$allow_undefined_flag $wl-M $wl$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- case $host_os in
- solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
- *)
- # The compiler driver will combine and reorder linker options,
- # but understands '-z linker_flag'.
- # Supported since Solaris 2.6 (maybe 2.5.1?)
- _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
- ;;
- esac
- _LT_TAGVAR(link_all_deplibs, $1)=yes
-
- output_verbose_link_cmd='func_echo_all'
-
- # Archives containing C++ object files must be created using
- # "CC -xar", where "CC" is the Sun C++ compiler. This is
- # necessary to make sure instantiated templates are included
- # in the archive.
- _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
- ;;
- gcx*)
- # Green Hills C++ Compiler
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
-
- # The C++ compiler must be used to create the archive.
- _LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
- ;;
- *)
- # GNU C++ compiler with Solaris linker
- if test yes,no = "$GXX,$with_gnu_ld"; then
- _LT_TAGVAR(no_undefined_flag, $1)=' $wl-z ${wl}defs'
- if $CC --version | $GREP -v '^2\.7' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -shared $pic_flag -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
- else
- # g++ 2.7 appears to require '-G' NOT '-shared' on this
- # platform.
- _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -G -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
- fi
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $wl$libdir'
- case $host_os in
- solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
- *)
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
- ;;
- esac
- fi
- ;;
- esac
- ;;
-
- sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
- _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- runpath_var='LD_RUN_PATH'
-
- case $cc_basename in
- CC*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- ;;
-
- sysv5* | sco3.2v5* | sco5v6*)
- # Note: We CANNOT use -z defs as we might desire, because we do not
- # link with -lc, and that would cause any symbols used from libc to
- # always be unresolved, which means just about no library would
- # ever link correctly. If we're not using GNU ld we use -z text
- # though, which does catch some bad symbols but isn't as heavy-handed
- # as -z defs.
- _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
- _LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport'
- runpath_var='LD_RUN_PATH'
-
- case $cc_basename in
- CC*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(old_archive_cmds, $1)='$CC -Tprelink_objects $oldobjs~
- '"$_LT_TAGVAR(old_archive_cmds, $1)"
- _LT_TAGVAR(reload_cmds, $1)='$CC -Tprelink_objects $reload_objs~
- '"$_LT_TAGVAR(reload_cmds, $1)"
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- ;;
-
- tandem*)
- case $cc_basename in
- NCC*)
- # NonStop-UX NCC 3.20
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
- ;;
-
- vxworks*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
-
- AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
- test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no
-
- _LT_TAGVAR(GCC, $1)=$GXX
- _LT_TAGVAR(LD, $1)=$LD
-
- ## CAVEAT EMPTOR:
- ## There is no encapsulation within the following macros, do not change
- ## the running order or otherwise move them around unless you know exactly
- ## what you are doing...
- _LT_SYS_HIDDEN_LIBDEPS($1)
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_SYS_DYNAMIC_LINKER($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
-
- _LT_CONFIG($1)
- fi # test -n "$compiler"
-
- CC=$lt_save_CC
- CFLAGS=$lt_save_CFLAGS
- LDCXX=$LD
- LD=$lt_save_LD
- GCC=$lt_save_GCC
- with_gnu_ld=$lt_save_with_gnu_ld
- lt_cv_path_LDCXX=$lt_cv_path_LD
- lt_cv_path_LD=$lt_save_path_LD
- lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
- lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
-fi # test yes != "$_lt_caught_CXX_error"
-
-AC_LANG_POP
-])# _LT_LANG_CXX_CONFIG
-
-
-# _LT_FUNC_STRIPNAME_CNF
-# ----------------------
-# func_stripname_cnf prefix suffix name
-# strip PREFIX and SUFFIX off of NAME.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-#
-# This function is identical to the (non-XSI) version of func_stripname,
-# except this one can be used by m4 code that may be executed by configure,
-# rather than the libtool script.
-m4_defun([_LT_FUNC_STRIPNAME_CNF],[dnl
-AC_REQUIRE([_LT_DECL_SED])
-AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])
-func_stripname_cnf ()
-{
- case @S|@2 in
- .*) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%\\\\@S|@2\$%%"`;;
- *) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%@S|@2\$%%"`;;
- esac
-} # func_stripname_cnf
-])# _LT_FUNC_STRIPNAME_CNF
-
-
-# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME])
-# ---------------------------------
-# Figure out "hidden" library dependencies from verbose
-# compiler output when linking a shared library.
-# Parse the compiler output and extract the necessary
-# objects, libraries and library flags.
-m4_defun([_LT_SYS_HIDDEN_LIBDEPS],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-AC_REQUIRE([_LT_FUNC_STRIPNAME_CNF])dnl
-# Dependencies to place before and after the object being linked:
-_LT_TAGVAR(predep_objects, $1)=
-_LT_TAGVAR(postdep_objects, $1)=
-_LT_TAGVAR(predeps, $1)=
-_LT_TAGVAR(postdeps, $1)=
-_LT_TAGVAR(compiler_lib_search_path, $1)=
-
-dnl we can't use the lt_simple_compile_test_code here,
-dnl because it contains code intended for an executable,
-dnl not a library. It's possible we should let each
-dnl tag define a new lt_????_link_test_code variable,
-dnl but it's only used here...
-m4_if([$1], [], [cat > conftest.$ac_ext <<_LT_EOF
-int a;
-void foo (void) { a = 0; }
-_LT_EOF
-], [$1], [CXX], [cat > conftest.$ac_ext <<_LT_EOF
-class Foo
-{
-public:
- Foo (void) { a = 0; }
-private:
- int a;
-};
-_LT_EOF
-], [$1], [F77], [cat > conftest.$ac_ext <<_LT_EOF
- subroutine foo
- implicit none
- integer*4 a
- a=0
- return
- end
-_LT_EOF
-], [$1], [FC], [cat > conftest.$ac_ext <<_LT_EOF
- subroutine foo
- implicit none
- integer a
- a=0
- return
- end
-_LT_EOF
-], [$1], [GCJ], [cat > conftest.$ac_ext <<_LT_EOF
-public class foo {
- private int a;
- public void bar (void) {
- a = 0;
- }
-};
-_LT_EOF
-], [$1], [GO], [cat > conftest.$ac_ext <<_LT_EOF
-package foo
-func foo() {
-}
-_LT_EOF
-])
-
-_lt_libdeps_save_CFLAGS=$CFLAGS
-case "$CC $CFLAGS " in #(
-*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
-*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
-*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;;
-esac
-
-dnl Parse the compiler output and extract the necessary
-dnl objects, libraries and library flags.
-if AC_TRY_EVAL(ac_compile); then
- # Parse the compiler output and extract the necessary
- # objects, libraries and library flags.
-
- # Sentinel used to keep track of whether or not we are before
- # the conftest object file.
- pre_test_object_deps_done=no
-
- for p in `eval "$output_verbose_link_cmd"`; do
- case $prev$p in
-
- -L* | -R* | -l*)
- # Some compilers place space between "-{L,R}" and the path.
- # Remove the space.
- if test x-L = "$p" ||
- test x-R = "$p"; then
- prev=$p
- continue
- fi
-
- # Expand the sysroot to ease extracting the directories later.
- if test -z "$prev"; then
- case $p in
- -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;;
- -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;;
- -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;;
- esac
- fi
- case $p in
- =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;;
- esac
- if test no = "$pre_test_object_deps_done"; then
- case $prev in
- -L | -R)
- # Internal compiler library paths should come after those
- # provided the user. The postdeps already come after the
- # user supplied libs so there is no need to process them.
- if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then
- _LT_TAGVAR(compiler_lib_search_path, $1)=$prev$p
- else
- _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} $prev$p"
- fi
- ;;
- # The "-l" case would never come before the object being
- # linked, so don't bother handling this case.
- esac
- else
- if test -z "$_LT_TAGVAR(postdeps, $1)"; then
- _LT_TAGVAR(postdeps, $1)=$prev$p
- else
- _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} $prev$p"
- fi
- fi
- prev=
- ;;
-
- *.lto.$objext) ;; # Ignore GCC LTO objects
- *.$objext)
- # This assumes that the test object file only shows up
- # once in the compiler output.
- if test "$p" = "conftest.$objext"; then
- pre_test_object_deps_done=yes
- continue
- fi
-
- if test no = "$pre_test_object_deps_done"; then
- if test -z "$_LT_TAGVAR(predep_objects, $1)"; then
- _LT_TAGVAR(predep_objects, $1)=$p
- else
- _LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p"
- fi
- else
- if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then
- _LT_TAGVAR(postdep_objects, $1)=$p
- else
- _LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p"
- fi
- fi
- ;;
-
- *) ;; # Ignore the rest.
-
- esac
- done
-
- # Clean up.
- rm -f a.out a.exe
-else
- echo "libtool.m4: error: problem compiling $1 test program"
-fi
-
-$RM -f confest.$objext
-CFLAGS=$_lt_libdeps_save_CFLAGS
-
-# PORTME: override above test on systems where it is broken
-m4_if([$1], [CXX],
-[case $host_os in
-interix[[3-9]]*)
- # Interix 3.5 installs completely hosed .la files for C++, so rather than
- # hack all around it, let's just trust "g++" to DTRT.
- _LT_TAGVAR(predep_objects,$1)=
- _LT_TAGVAR(postdep_objects,$1)=
- _LT_TAGVAR(postdeps,$1)=
- ;;
-esac
-])
-
-case " $_LT_TAGVAR(postdeps, $1) " in
-*" -lc "*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;;
-esac
- _LT_TAGVAR(compiler_lib_search_dirs, $1)=
-if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then
- _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | $SED -e 's! -L! !g' -e 's!^ !!'`
-fi
-_LT_TAGDECL([], [compiler_lib_search_dirs], [1],
- [The directories searched by this compiler when creating a shared library])
-_LT_TAGDECL([], [predep_objects], [1],
- [Dependencies to place before and after the objects being linked to
- create a shared library])
-_LT_TAGDECL([], [postdep_objects], [1])
-_LT_TAGDECL([], [predeps], [1])
-_LT_TAGDECL([], [postdeps], [1])
-_LT_TAGDECL([], [compiler_lib_search_path], [1],
- [The library search path used internally by the compiler when linking
- a shared library])
-])# _LT_SYS_HIDDEN_LIBDEPS
-
-
-# _LT_LANG_F77_CONFIG([TAG])
-# --------------------------
-# Ensure that the configuration variables for a Fortran 77 compiler are
-# suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to 'libtool'.
-m4_defun([_LT_LANG_F77_CONFIG],
-[AC_LANG_PUSH(Fortran 77)
-if test -z "$F77" || test no = "$F77"; then
- _lt_disable_F77=yes
-fi
-
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-_LT_TAGVAR(allow_undefined_flag, $1)=
-_LT_TAGVAR(always_export_symbols, $1)=no
-_LT_TAGVAR(archive_expsym_cmds, $1)=
-_LT_TAGVAR(export_dynamic_flag_spec, $1)=
-_LT_TAGVAR(hardcode_direct, $1)=no
-_LT_TAGVAR(hardcode_direct_absolute, $1)=no
-_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-_LT_TAGVAR(hardcode_libdir_separator, $1)=
-_LT_TAGVAR(hardcode_minus_L, $1)=no
-_LT_TAGVAR(hardcode_automatic, $1)=no
-_LT_TAGVAR(inherit_rpath, $1)=no
-_LT_TAGVAR(module_cmds, $1)=
-_LT_TAGVAR(module_expsym_cmds, $1)=
-_LT_TAGVAR(link_all_deplibs, $1)=unknown
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-_LT_TAGVAR(reload_flag, $1)=$reload_flag
-_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
-_LT_TAGVAR(no_undefined_flag, $1)=
-_LT_TAGVAR(whole_archive_flag_spec, $1)=
-_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
-
-# Source file extension for f77 test sources.
-ac_ext=f
-
-# Object file extension for compiled f77 test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# No sense in running all these tests if we already determined that
-# the F77 compiler isn't working. Some variables (like enable_shared)
-# are currently assumed to apply to all compilers on this platform,
-# and will be corrupted by setting them based on a non-working compiler.
-if test yes != "$_lt_disable_F77"; then
- # Code to be used in simple compile tests
- lt_simple_compile_test_code="\
- subroutine t
- return
- end
-"
-
- # Code to be used in simple link tests
- lt_simple_link_test_code="\
- program t
- end
-"
-
- # ltmain only uses $CC for tagged configurations so make sure $CC is set.
- _LT_TAG_COMPILER
-
- # save warnings/boilerplate of simple test code
- _LT_COMPILER_BOILERPLATE
- _LT_LINKER_BOILERPLATE
-
- # Allow CC to be a program name with arguments.
- lt_save_CC=$CC
- lt_save_GCC=$GCC
- lt_save_CFLAGS=$CFLAGS
- CC=${F77-"f77"}
- CFLAGS=$FFLAGS
- compiler=$CC
- _LT_TAGVAR(compiler, $1)=$CC
- _LT_CC_BASENAME([$compiler])
- GCC=$G77
- if test -n "$compiler"; then
- AC_MSG_CHECKING([if libtool supports shared libraries])
- AC_MSG_RESULT([$can_build_shared])
-
- AC_MSG_CHECKING([whether to build shared libraries])
- test no = "$can_build_shared" && enable_shared=no
-
- # On AIX, shared libraries and static libraries use the same namespace, and
- # are all built from PIC.
- case $host_os in
- aix3*)
- test yes = "$enable_shared" && enable_static=no
- if test -n "$RANLIB"; then
- archive_cmds="$archive_cmds~\$RANLIB \$lib"
- postinstall_cmds='$RANLIB $lib'
- fi
- ;;
- aix[[4-9]]*)
- if test ia64 != "$host_cpu"; then
- case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
- yes,aix,yes) ;; # shared object as lib.so file only
- yes,svr4,*) ;; # shared object as lib.so archive member only
- yes,*) enable_static=no ;; # shared object in lib.a archive as well
- esac
- fi
- ;;
- esac
- AC_MSG_RESULT([$enable_shared])
-
- AC_MSG_CHECKING([whether to build static libraries])
- # Make sure either enable_shared or enable_static is yes.
- test yes = "$enable_shared" || enable_static=yes
- AC_MSG_RESULT([$enable_static])
-
- _LT_TAGVAR(GCC, $1)=$G77
- _LT_TAGVAR(LD, $1)=$LD
-
- ## CAVEAT EMPTOR:
- ## There is no encapsulation within the following macros, do not change
- ## the running order or otherwise move them around unless you know exactly
- ## what you are doing...
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_SYS_DYNAMIC_LINKER($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
-
- _LT_CONFIG($1)
- fi # test -n "$compiler"
-
- GCC=$lt_save_GCC
- CC=$lt_save_CC
- CFLAGS=$lt_save_CFLAGS
-fi # test yes != "$_lt_disable_F77"
-
-AC_LANG_POP
-])# _LT_LANG_F77_CONFIG
-
-
-# _LT_LANG_FC_CONFIG([TAG])
-# -------------------------
-# Ensure that the configuration variables for a Fortran compiler are
-# suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to 'libtool'.
-m4_defun([_LT_LANG_FC_CONFIG],
-[AC_LANG_PUSH(Fortran)
-
-if test -z "$FC" || test no = "$FC"; then
- _lt_disable_FC=yes
-fi
-
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-_LT_TAGVAR(allow_undefined_flag, $1)=
-_LT_TAGVAR(always_export_symbols, $1)=no
-_LT_TAGVAR(archive_expsym_cmds, $1)=
-_LT_TAGVAR(export_dynamic_flag_spec, $1)=
-_LT_TAGVAR(hardcode_direct, $1)=no
-_LT_TAGVAR(hardcode_direct_absolute, $1)=no
-_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-_LT_TAGVAR(hardcode_libdir_separator, $1)=
-_LT_TAGVAR(hardcode_minus_L, $1)=no
-_LT_TAGVAR(hardcode_automatic, $1)=no
-_LT_TAGVAR(inherit_rpath, $1)=no
-_LT_TAGVAR(module_cmds, $1)=
-_LT_TAGVAR(module_expsym_cmds, $1)=
-_LT_TAGVAR(link_all_deplibs, $1)=unknown
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-_LT_TAGVAR(reload_flag, $1)=$reload_flag
-_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
-_LT_TAGVAR(no_undefined_flag, $1)=
-_LT_TAGVAR(whole_archive_flag_spec, $1)=
-_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
-
-# Source file extension for fc test sources.
-ac_ext=${ac_fc_srcext-f}
-
-# Object file extension for compiled fc test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# No sense in running all these tests if we already determined that
-# the FC compiler isn't working. Some variables (like enable_shared)
-# are currently assumed to apply to all compilers on this platform,
-# and will be corrupted by setting them based on a non-working compiler.
-if test yes != "$_lt_disable_FC"; then
- # Code to be used in simple compile tests
- lt_simple_compile_test_code="\
- subroutine t
- return
- end
-"
-
- # Code to be used in simple link tests
- lt_simple_link_test_code="\
- program t
- end
-"
-
- # ltmain only uses $CC for tagged configurations so make sure $CC is set.
- _LT_TAG_COMPILER
-
- # save warnings/boilerplate of simple test code
- _LT_COMPILER_BOILERPLATE
- _LT_LINKER_BOILERPLATE
-
- # Allow CC to be a program name with arguments.
- lt_save_CC=$CC
- lt_save_GCC=$GCC
- lt_save_CFLAGS=$CFLAGS
- CC=${FC-"f95"}
- CFLAGS=$FCFLAGS
- compiler=$CC
- GCC=$ac_cv_fc_compiler_gnu
-
- _LT_TAGVAR(compiler, $1)=$CC
- _LT_CC_BASENAME([$compiler])
-
- if test -n "$compiler"; then
- AC_MSG_CHECKING([if libtool supports shared libraries])
- AC_MSG_RESULT([$can_build_shared])
-
- AC_MSG_CHECKING([whether to build shared libraries])
- test no = "$can_build_shared" && enable_shared=no
-
- # On AIX, shared libraries and static libraries use the same namespace, and
- # are all built from PIC.
- case $host_os in
- aix3*)
- test yes = "$enable_shared" && enable_static=no
- if test -n "$RANLIB"; then
- archive_cmds="$archive_cmds~\$RANLIB \$lib"
- postinstall_cmds='$RANLIB $lib'
- fi
- ;;
- aix[[4-9]]*)
- if test ia64 != "$host_cpu"; then
- case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
- yes,aix,yes) ;; # shared object as lib.so file only
- yes,svr4,*) ;; # shared object as lib.so archive member only
- yes,*) enable_static=no ;; # shared object in lib.a archive as well
- esac
- fi
- ;;
- esac
- AC_MSG_RESULT([$enable_shared])
-
- AC_MSG_CHECKING([whether to build static libraries])
- # Make sure either enable_shared or enable_static is yes.
- test yes = "$enable_shared" || enable_static=yes
- AC_MSG_RESULT([$enable_static])
-
- _LT_TAGVAR(GCC, $1)=$ac_cv_fc_compiler_gnu
- _LT_TAGVAR(LD, $1)=$LD
-
- ## CAVEAT EMPTOR:
- ## There is no encapsulation within the following macros, do not change
- ## the running order or otherwise move them around unless you know exactly
- ## what you are doing...
- _LT_SYS_HIDDEN_LIBDEPS($1)
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_SYS_DYNAMIC_LINKER($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
-
- _LT_CONFIG($1)
- fi # test -n "$compiler"
-
- GCC=$lt_save_GCC
- CC=$lt_save_CC
- CFLAGS=$lt_save_CFLAGS
-fi # test yes != "$_lt_disable_FC"
-
-AC_LANG_POP
-])# _LT_LANG_FC_CONFIG
-
-
-# _LT_LANG_GCJ_CONFIG([TAG])
-# --------------------------
-# Ensure that the configuration variables for the GNU Java Compiler compiler
-# are suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to 'libtool'.
-m4_defun([_LT_LANG_GCJ_CONFIG],
-[AC_REQUIRE([LT_PROG_GCJ])dnl
-AC_LANG_SAVE
-
-# Source file extension for Java test sources.
-ac_ext=java
-
-# Object file extension for compiled Java test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# Code to be used in simple compile tests
-lt_simple_compile_test_code="class foo {}"
-
-# Code to be used in simple link tests
-lt_simple_link_test_code='public class conftest { public static void main(String[[]] argv) {}; }'
-
-# ltmain only uses $CC for tagged configurations so make sure $CC is set.
-_LT_TAG_COMPILER
-
-# save warnings/boilerplate of simple test code
-_LT_COMPILER_BOILERPLATE
-_LT_LINKER_BOILERPLATE
-
-# Allow CC to be a program name with arguments.
-lt_save_CC=$CC
-lt_save_CFLAGS=$CFLAGS
-lt_save_GCC=$GCC
-GCC=yes
-CC=${GCJ-"gcj"}
-CFLAGS=$GCJFLAGS
-compiler=$CC
-_LT_TAGVAR(compiler, $1)=$CC
-_LT_TAGVAR(LD, $1)=$LD
-_LT_CC_BASENAME([$compiler])
-
-# GCJ did not exist at the time GCC didn't implicitly link libc in.
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-_LT_TAGVAR(reload_flag, $1)=$reload_flag
-_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
-
-## CAVEAT EMPTOR:
-## There is no encapsulation within the following macros, do not change
-## the running order or otherwise move them around unless you know exactly
-## what you are doing...
-if test -n "$compiler"; then
- _LT_COMPILER_NO_RTTI($1)
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
-
- _LT_CONFIG($1)
-fi
-
-AC_LANG_RESTORE
-
-GCC=$lt_save_GCC
-CC=$lt_save_CC
-CFLAGS=$lt_save_CFLAGS
-])# _LT_LANG_GCJ_CONFIG
-
-
-# _LT_LANG_GO_CONFIG([TAG])
-# --------------------------
-# Ensure that the configuration variables for the GNU Go compiler
-# are suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to 'libtool'.
-m4_defun([_LT_LANG_GO_CONFIG],
-[AC_REQUIRE([LT_PROG_GO])dnl
-AC_LANG_SAVE
-
-# Source file extension for Go test sources.
-ac_ext=go
-
-# Object file extension for compiled Go test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# Code to be used in simple compile tests
-lt_simple_compile_test_code="package main; func main() { }"
-
-# Code to be used in simple link tests
-lt_simple_link_test_code='package main; func main() { }'
-
-# ltmain only uses $CC for tagged configurations so make sure $CC is set.
-_LT_TAG_COMPILER
-
-# save warnings/boilerplate of simple test code
-_LT_COMPILER_BOILERPLATE
-_LT_LINKER_BOILERPLATE
-
-# Allow CC to be a program name with arguments.
-lt_save_CC=$CC
-lt_save_CFLAGS=$CFLAGS
-lt_save_GCC=$GCC
-GCC=yes
-CC=${GOC-"gccgo"}
-CFLAGS=$GOFLAGS
-compiler=$CC
-_LT_TAGVAR(compiler, $1)=$CC
-_LT_TAGVAR(LD, $1)=$LD
-_LT_CC_BASENAME([$compiler])
-
-# Go did not exist at the time GCC didn't implicitly link libc in.
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-_LT_TAGVAR(reload_flag, $1)=$reload_flag
-_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
-
-## CAVEAT EMPTOR:
-## There is no encapsulation within the following macros, do not change
-## the running order or otherwise move them around unless you know exactly
-## what you are doing...
-if test -n "$compiler"; then
- _LT_COMPILER_NO_RTTI($1)
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
-
- _LT_CONFIG($1)
-fi
-
-AC_LANG_RESTORE
-
-GCC=$lt_save_GCC
-CC=$lt_save_CC
-CFLAGS=$lt_save_CFLAGS
-])# _LT_LANG_GO_CONFIG
-
-
-# _LT_LANG_RC_CONFIG([TAG])
-# -------------------------
-# Ensure that the configuration variables for the Windows resource compiler
-# are suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to 'libtool'.
-m4_defun([_LT_LANG_RC_CONFIG],
-[AC_REQUIRE([LT_PROG_RC])dnl
-AC_LANG_SAVE
-
-# Source file extension for RC test sources.
-ac_ext=rc
-
-# Object file extension for compiled RC test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# Code to be used in simple compile tests
-lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }'
-
-# Code to be used in simple link tests
-lt_simple_link_test_code=$lt_simple_compile_test_code
-
-# ltmain only uses $CC for tagged configurations so make sure $CC is set.
-_LT_TAG_COMPILER
-
-# save warnings/boilerplate of simple test code
-_LT_COMPILER_BOILERPLATE
-_LT_LINKER_BOILERPLATE
-
-# Allow CC to be a program name with arguments.
-lt_save_CC=$CC
-lt_save_CFLAGS=$CFLAGS
-lt_save_GCC=$GCC
-GCC=
-CC=${RC-"windres"}
-CFLAGS=
-compiler=$CC
-_LT_TAGVAR(compiler, $1)=$CC
-_LT_CC_BASENAME([$compiler])
-_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
-
-if test -n "$compiler"; then
- :
- _LT_CONFIG($1)
-fi
-
-GCC=$lt_save_GCC
-AC_LANG_RESTORE
-CC=$lt_save_CC
-CFLAGS=$lt_save_CFLAGS
-])# _LT_LANG_RC_CONFIG
-
-
-# LT_PROG_GCJ
-# -----------
-AC_DEFUN([LT_PROG_GCJ],
-[m4_ifdef([AC_PROG_GCJ], [AC_PROG_GCJ],
- [m4_ifdef([A][M_PROG_GCJ], [A][M_PROG_GCJ],
- [AC_CHECK_TOOL(GCJ, gcj,)
- test set = "${GCJFLAGS+set}" || GCJFLAGS="-g -O2"
- AC_SUBST(GCJFLAGS)])])[]dnl
-])
-
-# Old name:
-AU_ALIAS([LT_AC_PROG_GCJ], [LT_PROG_GCJ])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([LT_AC_PROG_GCJ], [])
-
-
-# LT_PROG_GO
-# ----------
-AC_DEFUN([LT_PROG_GO],
-[AC_CHECK_TOOL(GOC, gccgo,)
-])
-
-
-# LT_PROG_RC
-# ----------
-AC_DEFUN([LT_PROG_RC],
-[AC_CHECK_TOOL(RC, windres,)
-])
-
-# Old name:
-AU_ALIAS([LT_AC_PROG_RC], [LT_PROG_RC])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([LT_AC_PROG_RC], [])
-
-
-# _LT_DECL_EGREP
-# --------------
-# If we don't have a new enough Autoconf to choose the best grep
-# available, choose the one first in the user's PATH.
-m4_defun([_LT_DECL_EGREP],
-[AC_REQUIRE([AC_PROG_EGREP])dnl
-AC_REQUIRE([AC_PROG_FGREP])dnl
-test -z "$GREP" && GREP=grep
-_LT_DECL([], [GREP], [1], [A grep program that handles long lines])
-_LT_DECL([], [EGREP], [1], [An ERE matcher])
-_LT_DECL([], [FGREP], [1], [A literal string matcher])
-dnl Non-bleeding-edge autoconf doesn't subst GREP, so do it here too
-AC_SUBST([GREP])
-])
-
-
-# _LT_DECL_OBJDUMP
-# --------------
-# If we don't have a new enough Autoconf to choose the best objdump
-# available, choose the one first in the user's PATH.
-m4_defun([_LT_DECL_OBJDUMP],
-[AC_CHECK_TOOL(OBJDUMP, objdump, false)
-test -z "$OBJDUMP" && OBJDUMP=objdump
-_LT_DECL([], [OBJDUMP], [1], [An object symbol dumper])
-AC_SUBST([OBJDUMP])
-])
-
-# _LT_DECL_DLLTOOL
-# ----------------
-# Ensure DLLTOOL variable is set.
-m4_defun([_LT_DECL_DLLTOOL],
-[AC_CHECK_TOOL(DLLTOOL, dlltool, false)
-test -z "$DLLTOOL" && DLLTOOL=dlltool
-_LT_DECL([], [DLLTOOL], [1], [DLL creation program])
-AC_SUBST([DLLTOOL])
-])
-
-# _LT_DECL_SED
-# ------------
-# Check for a fully-functional sed program, that truncates
-# as few characters as possible. Prefer GNU sed if found.
-m4_defun([_LT_DECL_SED],
-[AC_PROG_SED
-test -z "$SED" && SED=sed
-Xsed="$SED -e 1s/^X//"
-_LT_DECL([], [SED], [1], [A sed program that does not truncate output])
-_LT_DECL([], [Xsed], ["\$SED -e 1s/^X//"],
- [Sed that helps us avoid accidentally triggering echo(1) options like -n])
-])# _LT_DECL_SED
-
-m4_ifndef([AC_PROG_SED], [
-############################################################
-# NOTE: This macro has been submitted for inclusion into #
-# GNU Autoconf as AC_PROG_SED. When it is available in #
-# a released version of Autoconf we should remove this #
-# macro and use it instead. #
-############################################################
-
-m4_defun([AC_PROG_SED],
-[AC_MSG_CHECKING([for a sed that does not truncate output])
-AC_CACHE_VAL(lt_cv_path_SED,
-[# Loop through the user's path and test for sed and gsed.
-# Then use that list of sed's as ones to test for truncation.
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for lt_ac_prog in sed gsed; do
- for ac_exec_ext in '' $ac_executable_extensions; do
- if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then
- lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext"
- fi
- done
- done
-done
-IFS=$as_save_IFS
-lt_ac_max=0
-lt_ac_count=0
-# Add /usr/xpg4/bin/sed as it is typically found on Solaris
-# along with /bin/sed that truncates output.
-for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do
- test ! -f "$lt_ac_sed" && continue
- cat /dev/null > conftest.in
- lt_ac_count=0
- echo $ECHO_N "0123456789$ECHO_C" >conftest.in
- # Check for GNU sed and select it if it is found.
- if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then
- lt_cv_path_SED=$lt_ac_sed
- break
- fi
- while true; do
- cat conftest.in conftest.in >conftest.tmp
- mv conftest.tmp conftest.in
- cp conftest.in conftest.nl
- echo >>conftest.nl
- $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break
- cmp -s conftest.out conftest.nl || break
- # 10000 chars as input seems more than enough
- test 10 -lt "$lt_ac_count" && break
- lt_ac_count=`expr $lt_ac_count + 1`
- if test "$lt_ac_count" -gt "$lt_ac_max"; then
- lt_ac_max=$lt_ac_count
- lt_cv_path_SED=$lt_ac_sed
- fi
- done
-done
-])
-SED=$lt_cv_path_SED
-AC_SUBST([SED])
-AC_MSG_RESULT([$SED])
-])#AC_PROG_SED
-])#m4_ifndef
-
-# Old name:
-AU_ALIAS([LT_AC_PROG_SED], [AC_PROG_SED])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([LT_AC_PROG_SED], [])
-
-
-# _LT_CHECK_SHELL_FEATURES
-# ------------------------
-# Find out whether the shell is Bourne or XSI compatible,
-# or has some other useful features.
-m4_defun([_LT_CHECK_SHELL_FEATURES],
-[if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
- lt_unset=unset
-else
- lt_unset=false
-fi
-_LT_DECL([], [lt_unset], [0], [whether the shell understands "unset"])dnl
-
-# test EBCDIC or ASCII
-case `echo X|tr X '\101'` in
- A) # ASCII based system
- # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
- lt_SP2NL='tr \040 \012'
- lt_NL2SP='tr \015\012 \040\040'
- ;;
- *) # EBCDIC based system
- lt_SP2NL='tr \100 \n'
- lt_NL2SP='tr \r\n \100\100'
- ;;
-esac
-_LT_DECL([SP2NL], [lt_SP2NL], [1], [turn spaces into newlines])dnl
-_LT_DECL([NL2SP], [lt_NL2SP], [1], [turn newlines into spaces])dnl
-])# _LT_CHECK_SHELL_FEATURES
-
-
-# _LT_PATH_CONVERSION_FUNCTIONS
-# -----------------------------
-# Determine what file name conversion functions should be used by
-# func_to_host_file (and, implicitly, by func_to_host_path). These are needed
-# for certain cross-compile configurations and native mingw.
-m4_defun([_LT_PATH_CONVERSION_FUNCTIONS],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-AC_REQUIRE([AC_CANONICAL_BUILD])dnl
-AC_MSG_CHECKING([how to convert $build file names to $host format])
-AC_CACHE_VAL(lt_cv_to_host_file_cmd,
-[case $host in
- *-*-mingw* )
- case $build in
- *-*-mingw* ) # actually msys
- lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32
- ;;
- *-*-cygwin* )
- lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32
- ;;
- * ) # otherwise, assume *nix
- lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32
- ;;
- esac
- ;;
- *-*-cygwin* )
- case $build in
- *-*-mingw* ) # actually msys
- lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin
- ;;
- *-*-cygwin* )
- lt_cv_to_host_file_cmd=func_convert_file_noop
- ;;
- * ) # otherwise, assume *nix
- lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin
- ;;
- esac
- ;;
- * ) # unhandled hosts (and "normal" native builds)
- lt_cv_to_host_file_cmd=func_convert_file_noop
- ;;
-esac
-])
-to_host_file_cmd=$lt_cv_to_host_file_cmd
-AC_MSG_RESULT([$lt_cv_to_host_file_cmd])
-_LT_DECL([to_host_file_cmd], [lt_cv_to_host_file_cmd],
- [0], [convert $build file names to $host format])dnl
-
-AC_MSG_CHECKING([how to convert $build file names to toolchain format])
-AC_CACHE_VAL(lt_cv_to_tool_file_cmd,
-[#assume ordinary cross tools, or native build.
-lt_cv_to_tool_file_cmd=func_convert_file_noop
-case $host in
- *-*-mingw* )
- case $build in
- *-*-mingw* ) # actually msys
- lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32
- ;;
- esac
- ;;
-esac
-])
-to_tool_file_cmd=$lt_cv_to_tool_file_cmd
-AC_MSG_RESULT([$lt_cv_to_tool_file_cmd])
-_LT_DECL([to_tool_file_cmd], [lt_cv_to_tool_file_cmd],
- [0], [convert $build files to toolchain format])dnl
-])# _LT_PATH_CONVERSION_FUNCTIONS
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/ltoptions.m4 b/3rdparty/libpng/libpng-1.6.37/scripts/ltoptions.m4
deleted file mode 100644
index 94b0829..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/ltoptions.m4
+++ /dev/null
@@ -1,437 +0,0 @@
-# Helper functions for option handling. -*- Autoconf -*-
-#
-# Copyright (C) 2004-2005, 2007-2009, 2011-2015 Free Software
-# Foundation, Inc.
-# Written by Gary V. Vaughan, 2004
-#
-# This file is free software; the Free Software Foundation gives
-# unlimited permission to copy and/or distribute it, with or without
-# modifications, as long as this notice is preserved.
-
-# serial 8 ltoptions.m4
-
-# This is to help aclocal find these macros, as it can't see m4_define.
-AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])
-
-
-# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME)
-# ------------------------------------------
-m4_define([_LT_MANGLE_OPTION],
-[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])])
-
-
-# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME)
-# ---------------------------------------
-# Set option OPTION-NAME for macro MACRO-NAME, and if there is a
-# matching handler defined, dispatch to it. Other OPTION-NAMEs are
-# saved as a flag.
-m4_define([_LT_SET_OPTION],
-[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl
-m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]),
- _LT_MANGLE_DEFUN([$1], [$2]),
- [m4_warning([Unknown $1 option '$2'])])[]dnl
-])
-
-
-# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET])
-# ------------------------------------------------------------
-# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
-m4_define([_LT_IF_OPTION],
-[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])])
-
-
-# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET)
-# -------------------------------------------------------
-# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME
-# are set.
-m4_define([_LT_UNLESS_OPTIONS],
-[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
- [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option),
- [m4_define([$0_found])])])[]dnl
-m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3
-])[]dnl
-])
-
-
-# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST)
-# ----------------------------------------
-# OPTION-LIST is a space-separated list of Libtool options associated
-# with MACRO-NAME. If any OPTION has a matching handler declared with
-# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about
-# the unknown option and exit.
-m4_defun([_LT_SET_OPTIONS],
-[# Set options
-m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
- [_LT_SET_OPTION([$1], _LT_Option)])
-
-m4_if([$1],[LT_INIT],[
- dnl
- dnl Simply set some default values (i.e off) if boolean options were not
- dnl specified:
- _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no
- ])
- _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no
- ])
- dnl
- dnl If no reference was made to various pairs of opposing options, then
- dnl we run the default mode handler for the pair. For example, if neither
- dnl 'shared' nor 'disable-shared' was passed, we enable building of shared
- dnl archives by default:
- _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED])
- _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC])
- _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC])
- _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install],
- [_LT_ENABLE_FAST_INSTALL])
- _LT_UNLESS_OPTIONS([LT_INIT], [aix-soname=aix aix-soname=both aix-soname=svr4],
- [_LT_WITH_AIX_SONAME([aix])])
- ])
-])# _LT_SET_OPTIONS
-
-
-## --------------------------------- ##
-## Macros to handle LT_INIT options. ##
-## --------------------------------- ##
-
-# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME)
-# -----------------------------------------
-m4_define([_LT_MANGLE_DEFUN],
-[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])])
-
-
-# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE)
-# -----------------------------------------------
-m4_define([LT_OPTION_DEFINE],
-[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl
-])# LT_OPTION_DEFINE
-
-
-# dlopen
-# ------
-LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes
-])
-
-AU_DEFUN([AC_LIBTOOL_DLOPEN],
-[_LT_SET_OPTION([LT_INIT], [dlopen])
-AC_DIAGNOSE([obsolete],
-[$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the 'dlopen' option into LT_INIT's first parameter.])
-])
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], [])
-
-
-# win32-dll
-# ---------
-# Declare package support for building win32 dll's.
-LT_OPTION_DEFINE([LT_INIT], [win32-dll],
-[enable_win32_dll=yes
-
-case $host in
-*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
- AC_CHECK_TOOL(AS, as, false)
- AC_CHECK_TOOL(DLLTOOL, dlltool, false)
- AC_CHECK_TOOL(OBJDUMP, objdump, false)
- ;;
-esac
-
-test -z "$AS" && AS=as
-_LT_DECL([], [AS], [1], [Assembler program])dnl
-
-test -z "$DLLTOOL" && DLLTOOL=dlltool
-_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl
-
-test -z "$OBJDUMP" && OBJDUMP=objdump
-_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl
-])# win32-dll
-
-AU_DEFUN([AC_LIBTOOL_WIN32_DLL],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-_LT_SET_OPTION([LT_INIT], [win32-dll])
-AC_DIAGNOSE([obsolete],
-[$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the 'win32-dll' option into LT_INIT's first parameter.])
-])
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [])
-
-
-# _LT_ENABLE_SHARED([DEFAULT])
-# ----------------------------
-# implement the --enable-shared flag, and supports the 'shared' and
-# 'disable-shared' LT_INIT options.
-# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'.
-m4_define([_LT_ENABLE_SHARED],
-[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl
-AC_ARG_ENABLE([shared],
- [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@],
- [build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])],
- [p=${PACKAGE-default}
- case $enableval in
- yes) enable_shared=yes ;;
- no) enable_shared=no ;;
- *)
- enable_shared=no
- # Look at the argument we got. We use all the common list separators.
- lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
- for pkg in $enableval; do
- IFS=$lt_save_ifs
- if test "X$pkg" = "X$p"; then
- enable_shared=yes
- fi
- done
- IFS=$lt_save_ifs
- ;;
- esac],
- [enable_shared=]_LT_ENABLE_SHARED_DEFAULT)
-
- _LT_DECL([build_libtool_libs], [enable_shared], [0],
- [Whether or not to build shared libraries])
-])# _LT_ENABLE_SHARED
-
-LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])])
-LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])])
-
-# Old names:
-AC_DEFUN([AC_ENABLE_SHARED],
-[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared])
-])
-
-AC_DEFUN([AC_DISABLE_SHARED],
-[_LT_SET_OPTION([LT_INIT], [disable-shared])
-])
-
-AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)])
-AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AM_ENABLE_SHARED], [])
-dnl AC_DEFUN([AM_DISABLE_SHARED], [])
-
-
-
-# _LT_ENABLE_STATIC([DEFAULT])
-# ----------------------------
-# implement the --enable-static flag, and support the 'static' and
-# 'disable-static' LT_INIT options.
-# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'.
-m4_define([_LT_ENABLE_STATIC],
-[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl
-AC_ARG_ENABLE([static],
- [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@],
- [build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])],
- [p=${PACKAGE-default}
- case $enableval in
- yes) enable_static=yes ;;
- no) enable_static=no ;;
- *)
- enable_static=no
- # Look at the argument we got. We use all the common list separators.
- lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
- for pkg in $enableval; do
- IFS=$lt_save_ifs
- if test "X$pkg" = "X$p"; then
- enable_static=yes
- fi
- done
- IFS=$lt_save_ifs
- ;;
- esac],
- [enable_static=]_LT_ENABLE_STATIC_DEFAULT)
-
- _LT_DECL([build_old_libs], [enable_static], [0],
- [Whether or not to build static libraries])
-])# _LT_ENABLE_STATIC
-
-LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])])
-LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])])
-
-# Old names:
-AC_DEFUN([AC_ENABLE_STATIC],
-[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static])
-])
-
-AC_DEFUN([AC_DISABLE_STATIC],
-[_LT_SET_OPTION([LT_INIT], [disable-static])
-])
-
-AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)])
-AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AM_ENABLE_STATIC], [])
-dnl AC_DEFUN([AM_DISABLE_STATIC], [])
-
-
-
-# _LT_ENABLE_FAST_INSTALL([DEFAULT])
-# ----------------------------------
-# implement the --enable-fast-install flag, and support the 'fast-install'
-# and 'disable-fast-install' LT_INIT options.
-# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'.
-m4_define([_LT_ENABLE_FAST_INSTALL],
-[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl
-AC_ARG_ENABLE([fast-install],
- [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@],
- [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])],
- [p=${PACKAGE-default}
- case $enableval in
- yes) enable_fast_install=yes ;;
- no) enable_fast_install=no ;;
- *)
- enable_fast_install=no
- # Look at the argument we got. We use all the common list separators.
- lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
- for pkg in $enableval; do
- IFS=$lt_save_ifs
- if test "X$pkg" = "X$p"; then
- enable_fast_install=yes
- fi
- done
- IFS=$lt_save_ifs
- ;;
- esac],
- [enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT)
-
-_LT_DECL([fast_install], [enable_fast_install], [0],
- [Whether or not to optimize for fast installation])dnl
-])# _LT_ENABLE_FAST_INSTALL
-
-LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])])
-LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])])
-
-# Old names:
-AU_DEFUN([AC_ENABLE_FAST_INSTALL],
-[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install])
-AC_DIAGNOSE([obsolete],
-[$0: Remove this warning and the call to _LT_SET_OPTION when you put
-the 'fast-install' option into LT_INIT's first parameter.])
-])
-
-AU_DEFUN([AC_DISABLE_FAST_INSTALL],
-[_LT_SET_OPTION([LT_INIT], [disable-fast-install])
-AC_DIAGNOSE([obsolete],
-[$0: Remove this warning and the call to _LT_SET_OPTION when you put
-the 'disable-fast-install' option into LT_INIT's first parameter.])
-])
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], [])
-dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], [])
-
-
-# _LT_WITH_AIX_SONAME([DEFAULT])
-# ----------------------------------
-# implement the --with-aix-soname flag, and support the `aix-soname=aix'
-# and `aix-soname=both' and `aix-soname=svr4' LT_INIT options. DEFAULT
-# is either `aix', `both' or `svr4'. If omitted, it defaults to `aix'.
-m4_define([_LT_WITH_AIX_SONAME],
-[m4_define([_LT_WITH_AIX_SONAME_DEFAULT], [m4_if($1, svr4, svr4, m4_if($1, both, both, aix))])dnl
-shared_archive_member_spec=
-case $host,$enable_shared in
-power*-*-aix[[5-9]]*,yes)
- AC_MSG_CHECKING([which variant of shared library versioning to provide])
- AC_ARG_WITH([aix-soname],
- [AS_HELP_STRING([--with-aix-soname=aix|svr4|both],
- [shared library versioning (aka "SONAME") variant to provide on AIX, @<:@default=]_LT_WITH_AIX_SONAME_DEFAULT[@:>@.])],
- [case $withval in
- aix|svr4|both)
- ;;
- *)
- AC_MSG_ERROR([Unknown argument to --with-aix-soname])
- ;;
- esac
- lt_cv_with_aix_soname=$with_aix_soname],
- [AC_CACHE_VAL([lt_cv_with_aix_soname],
- [lt_cv_with_aix_soname=]_LT_WITH_AIX_SONAME_DEFAULT)
- with_aix_soname=$lt_cv_with_aix_soname])
- AC_MSG_RESULT([$with_aix_soname])
- if test aix != "$with_aix_soname"; then
- # For the AIX way of multilib, we name the shared archive member
- # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o',
- # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File.
- # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag,
- # the AIX toolchain works better with OBJECT_MODE set (default 32).
- if test 64 = "${OBJECT_MODE-32}"; then
- shared_archive_member_spec=shr_64
- else
- shared_archive_member_spec=shr
- fi
- fi
- ;;
-*)
- with_aix_soname=aix
- ;;
-esac
-
-_LT_DECL([], [shared_archive_member_spec], [0],
- [Shared archive member basename, for filename based shared library versioning on AIX])dnl
-])# _LT_WITH_AIX_SONAME
-
-LT_OPTION_DEFINE([LT_INIT], [aix-soname=aix], [_LT_WITH_AIX_SONAME([aix])])
-LT_OPTION_DEFINE([LT_INIT], [aix-soname=both], [_LT_WITH_AIX_SONAME([both])])
-LT_OPTION_DEFINE([LT_INIT], [aix-soname=svr4], [_LT_WITH_AIX_SONAME([svr4])])
-
-
-# _LT_WITH_PIC([MODE])
-# --------------------
-# implement the --with-pic flag, and support the 'pic-only' and 'no-pic'
-# LT_INIT options.
-# MODE is either 'yes' or 'no'. If omitted, it defaults to 'both'.
-m4_define([_LT_WITH_PIC],
-[AC_ARG_WITH([pic],
- [AS_HELP_STRING([--with-pic@<:@=PKGS@:>@],
- [try to use only PIC/non-PIC objects @<:@default=use both@:>@])],
- [lt_p=${PACKAGE-default}
- case $withval in
- yes|no) pic_mode=$withval ;;
- *)
- pic_mode=default
- # Look at the argument we got. We use all the common list separators.
- lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
- for lt_pkg in $withval; do
- IFS=$lt_save_ifs
- if test "X$lt_pkg" = "X$lt_p"; then
- pic_mode=yes
- fi
- done
- IFS=$lt_save_ifs
- ;;
- esac],
- [pic_mode=m4_default([$1], [default])])
-
-_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl
-])# _LT_WITH_PIC
-
-LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])])
-LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])])
-
-# Old name:
-AU_DEFUN([AC_LIBTOOL_PICMODE],
-[_LT_SET_OPTION([LT_INIT], [pic-only])
-AC_DIAGNOSE([obsolete],
-[$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the 'pic-only' option into LT_INIT's first parameter.])
-])
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_PICMODE], [])
-
-## ----------------- ##
-## LTDL_INIT Options ##
-## ----------------- ##
-
-m4_define([_LTDL_MODE], [])
-LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive],
- [m4_define([_LTDL_MODE], [nonrecursive])])
-LT_OPTION_DEFINE([LTDL_INIT], [recursive],
- [m4_define([_LTDL_MODE], [recursive])])
-LT_OPTION_DEFINE([LTDL_INIT], [subproject],
- [m4_define([_LTDL_MODE], [subproject])])
-
-m4_define([_LTDL_TYPE], [])
-LT_OPTION_DEFINE([LTDL_INIT], [installable],
- [m4_define([_LTDL_TYPE], [installable])])
-LT_OPTION_DEFINE([LTDL_INIT], [convenience],
- [m4_define([_LTDL_TYPE], [convenience])])
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/ltsugar.m4 b/3rdparty/libpng/libpng-1.6.37/scripts/ltsugar.m4
deleted file mode 100644
index 48bc934..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/ltsugar.m4
+++ /dev/null
@@ -1,124 +0,0 @@
-# ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*-
-#
-# Copyright (C) 2004-2005, 2007-2008, 2011-2015 Free Software
-# Foundation, Inc.
-# Written by Gary V. Vaughan, 2004
-#
-# This file is free software; the Free Software Foundation gives
-# unlimited permission to copy and/or distribute it, with or without
-# modifications, as long as this notice is preserved.
-
-# serial 6 ltsugar.m4
-
-# This is to help aclocal find these macros, as it can't see m4_define.
-AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
-
-
-# lt_join(SEP, ARG1, [ARG2...])
-# -----------------------------
-# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
-# associated separator.
-# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier
-# versions in m4sugar had bugs.
-m4_define([lt_join],
-[m4_if([$#], [1], [],
- [$#], [2], [[$2]],
- [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])])
-m4_define([_lt_join],
-[m4_if([$#$2], [2], [],
- [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])])
-
-
-# lt_car(LIST)
-# lt_cdr(LIST)
-# ------------
-# Manipulate m4 lists.
-# These macros are necessary as long as will still need to support
-# Autoconf-2.59, which quotes differently.
-m4_define([lt_car], [[$1]])
-m4_define([lt_cdr],
-[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
- [$#], 1, [],
- [m4_dquote(m4_shift($@))])])
-m4_define([lt_unquote], $1)
-
-
-# lt_append(MACRO-NAME, STRING, [SEPARATOR])
-# ------------------------------------------
-# Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'.
-# Note that neither SEPARATOR nor STRING are expanded; they are appended
-# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked).
-# No SEPARATOR is output if MACRO-NAME was previously undefined (different
-# than defined and empty).
-#
-# This macro is needed until we can rely on Autoconf 2.62, since earlier
-# versions of m4sugar mistakenly expanded SEPARATOR but not STRING.
-m4_define([lt_append],
-[m4_define([$1],
- m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])])
-
-
-
-# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
-# ----------------------------------------------------------
-# Produce a SEP delimited list of all paired combinations of elements of
-# PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list
-# has the form PREFIXmINFIXSUFFIXn.
-# Needed until we can rely on m4_combine added in Autoconf 2.62.
-m4_define([lt_combine],
-[m4_if(m4_eval([$# > 3]), [1],
- [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl
-[[m4_foreach([_Lt_prefix], [$2],
- [m4_foreach([_Lt_suffix],
- ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[,
- [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])])
-
-
-# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
-# -----------------------------------------------------------------------
-# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited
-# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
-m4_define([lt_if_append_uniq],
-[m4_ifdef([$1],
- [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1],
- [lt_append([$1], [$2], [$3])$4],
- [$5])],
- [lt_append([$1], [$2], [$3])$4])])
-
-
-# lt_dict_add(DICT, KEY, VALUE)
-# -----------------------------
-m4_define([lt_dict_add],
-[m4_define([$1($2)], [$3])])
-
-
-# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
-# --------------------------------------------
-m4_define([lt_dict_add_subkey],
-[m4_define([$1($2:$3)], [$4])])
-
-
-# lt_dict_fetch(DICT, KEY, [SUBKEY])
-# ----------------------------------
-m4_define([lt_dict_fetch],
-[m4_ifval([$3],
- m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]),
- m4_ifdef([$1($2)], [m4_defn([$1($2)])]))])
-
-
-# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
-# -----------------------------------------------------------------
-m4_define([lt_if_dict_fetch],
-[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4],
- [$5],
- [$6])])
-
-
-# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
-# --------------------------------------------------------------
-m4_define([lt_dict_filter],
-[m4_if([$5], [], [],
- [lt_join(m4_quote(m4_default([$4], [[, ]])),
- lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]),
- [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl
-])
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/ltversion.m4 b/3rdparty/libpng/libpng-1.6.37/scripts/ltversion.m4
deleted file mode 100644
index fa04b52..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/ltversion.m4
+++ /dev/null
@@ -1,23 +0,0 @@
-# ltversion.m4 -- version numbers -*- Autoconf -*-
-#
-# Copyright (C) 2004, 2011-2015 Free Software Foundation, Inc.
-# Written by Scott James Remnant, 2004
-#
-# This file is free software; the Free Software Foundation gives
-# unlimited permission to copy and/or distribute it, with or without
-# modifications, as long as this notice is preserved.
-
-# @configure_input@
-
-# serial 4179 ltversion.m4
-# This file is part of GNU Libtool
-
-m4_define([LT_PACKAGE_VERSION], [2.4.6])
-m4_define([LT_PACKAGE_REVISION], [2.4.6])
-
-AC_DEFUN([LTVERSION_VERSION],
-[macro_version='2.4.6'
-macro_revision='2.4.6'
-_LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?])
-_LT_DECL(, macro_revision, 0)
-])
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/lt~obsolete.m4 b/3rdparty/libpng/libpng-1.6.37/scripts/lt~obsolete.m4
deleted file mode 100644
index c6b26f8..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/lt~obsolete.m4
+++ /dev/null
@@ -1,99 +0,0 @@
-# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*-
-#
-# Copyright (C) 2004-2005, 2007, 2009, 2011-2015 Free Software
-# Foundation, Inc.
-# Written by Scott James Remnant, 2004.
-#
-# This file is free software; the Free Software Foundation gives
-# unlimited permission to copy and/or distribute it, with or without
-# modifications, as long as this notice is preserved.
-
-# serial 5 lt~obsolete.m4
-
-# These exist entirely to fool aclocal when bootstrapping libtool.
-#
-# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN),
-# which have later been changed to m4_define as they aren't part of the
-# exported API, or moved to Autoconf or Automake where they belong.
-#
-# The trouble is, aclocal is a bit thick. It'll see the old AC_DEFUN
-# in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us
-# using a macro with the same name in our local m4/libtool.m4 it'll
-# pull the old libtool.m4 in (it doesn't see our shiny new m4_define
-# and doesn't know about Autoconf macros at all.)
-#
-# So we provide this file, which has a silly filename so it's always
-# included after everything else. This provides aclocal with the
-# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything
-# because those macros already exist, or will be overwritten later.
-# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6.
-#
-# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here.
-# Yes, that means every name once taken will need to remain here until
-# we give up compatibility with versions before 1.7, at which point
-# we need to keep only those names which we still refer to.
-
-# This is to help aclocal find these macros, as it can't see m4_define.
-AC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])])
-
-m4_ifndef([AC_LIBTOOL_LINKER_OPTION], [AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])])
-m4_ifndef([AC_PROG_EGREP], [AC_DEFUN([AC_PROG_EGREP])])
-m4_ifndef([_LT_AC_PROG_ECHO_BACKSLASH], [AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH])])
-m4_ifndef([_LT_AC_SHELL_INIT], [AC_DEFUN([_LT_AC_SHELL_INIT])])
-m4_ifndef([_LT_AC_SYS_LIBPATH_AIX], [AC_DEFUN([_LT_AC_SYS_LIBPATH_AIX])])
-m4_ifndef([_LT_PROG_LTMAIN], [AC_DEFUN([_LT_PROG_LTMAIN])])
-m4_ifndef([_LT_AC_TAGVAR], [AC_DEFUN([_LT_AC_TAGVAR])])
-m4_ifndef([AC_LTDL_ENABLE_INSTALL], [AC_DEFUN([AC_LTDL_ENABLE_INSTALL])])
-m4_ifndef([AC_LTDL_PREOPEN], [AC_DEFUN([AC_LTDL_PREOPEN])])
-m4_ifndef([_LT_AC_SYS_COMPILER], [AC_DEFUN([_LT_AC_SYS_COMPILER])])
-m4_ifndef([_LT_AC_LOCK], [AC_DEFUN([_LT_AC_LOCK])])
-m4_ifndef([AC_LIBTOOL_SYS_OLD_ARCHIVE], [AC_DEFUN([AC_LIBTOOL_SYS_OLD_ARCHIVE])])
-m4_ifndef([_LT_AC_TRY_DLOPEN_SELF], [AC_DEFUN([_LT_AC_TRY_DLOPEN_SELF])])
-m4_ifndef([AC_LIBTOOL_PROG_CC_C_O], [AC_DEFUN([AC_LIBTOOL_PROG_CC_C_O])])
-m4_ifndef([AC_LIBTOOL_SYS_HARD_LINK_LOCKS], [AC_DEFUN([AC_LIBTOOL_SYS_HARD_LINK_LOCKS])])
-m4_ifndef([AC_LIBTOOL_OBJDIR], [AC_DEFUN([AC_LIBTOOL_OBJDIR])])
-m4_ifndef([AC_LTDL_OBJDIR], [AC_DEFUN([AC_LTDL_OBJDIR])])
-m4_ifndef([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH], [AC_DEFUN([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH])])
-m4_ifndef([AC_LIBTOOL_SYS_LIB_STRIP], [AC_DEFUN([AC_LIBTOOL_SYS_LIB_STRIP])])
-m4_ifndef([AC_PATH_MAGIC], [AC_DEFUN([AC_PATH_MAGIC])])
-m4_ifndef([AC_PROG_LD_GNU], [AC_DEFUN([AC_PROG_LD_GNU])])
-m4_ifndef([AC_PROG_LD_RELOAD_FLAG], [AC_DEFUN([AC_PROG_LD_RELOAD_FLAG])])
-m4_ifndef([AC_DEPLIBS_CHECK_METHOD], [AC_DEFUN([AC_DEPLIBS_CHECK_METHOD])])
-m4_ifndef([AC_LIBTOOL_PROG_COMPILER_NO_RTTI], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_NO_RTTI])])
-m4_ifndef([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE], [AC_DEFUN([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])])
-m4_ifndef([AC_LIBTOOL_PROG_COMPILER_PIC], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_PIC])])
-m4_ifndef([AC_LIBTOOL_PROG_LD_SHLIBS], [AC_DEFUN([AC_LIBTOOL_PROG_LD_SHLIBS])])
-m4_ifndef([AC_LIBTOOL_POSTDEP_PREDEP], [AC_DEFUN([AC_LIBTOOL_POSTDEP_PREDEP])])
-m4_ifndef([LT_AC_PROG_EGREP], [AC_DEFUN([LT_AC_PROG_EGREP])])
-m4_ifndef([LT_AC_PROG_SED], [AC_DEFUN([LT_AC_PROG_SED])])
-m4_ifndef([_LT_CC_BASENAME], [AC_DEFUN([_LT_CC_BASENAME])])
-m4_ifndef([_LT_COMPILER_BOILERPLATE], [AC_DEFUN([_LT_COMPILER_BOILERPLATE])])
-m4_ifndef([_LT_LINKER_BOILERPLATE], [AC_DEFUN([_LT_LINKER_BOILERPLATE])])
-m4_ifndef([_AC_PROG_LIBTOOL], [AC_DEFUN([_AC_PROG_LIBTOOL])])
-m4_ifndef([AC_LIBTOOL_SETUP], [AC_DEFUN([AC_LIBTOOL_SETUP])])
-m4_ifndef([_LT_AC_CHECK_DLFCN], [AC_DEFUN([_LT_AC_CHECK_DLFCN])])
-m4_ifndef([AC_LIBTOOL_SYS_DYNAMIC_LINKER], [AC_DEFUN([AC_LIBTOOL_SYS_DYNAMIC_LINKER])])
-m4_ifndef([_LT_AC_TAGCONFIG], [AC_DEFUN([_LT_AC_TAGCONFIG])])
-m4_ifndef([AC_DISABLE_FAST_INSTALL], [AC_DEFUN([AC_DISABLE_FAST_INSTALL])])
-m4_ifndef([_LT_AC_LANG_CXX], [AC_DEFUN([_LT_AC_LANG_CXX])])
-m4_ifndef([_LT_AC_LANG_F77], [AC_DEFUN([_LT_AC_LANG_F77])])
-m4_ifndef([_LT_AC_LANG_GCJ], [AC_DEFUN([_LT_AC_LANG_GCJ])])
-m4_ifndef([AC_LIBTOOL_LANG_C_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_C_CONFIG])])
-m4_ifndef([_LT_AC_LANG_C_CONFIG], [AC_DEFUN([_LT_AC_LANG_C_CONFIG])])
-m4_ifndef([AC_LIBTOOL_LANG_CXX_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_CXX_CONFIG])])
-m4_ifndef([_LT_AC_LANG_CXX_CONFIG], [AC_DEFUN([_LT_AC_LANG_CXX_CONFIG])])
-m4_ifndef([AC_LIBTOOL_LANG_F77_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_F77_CONFIG])])
-m4_ifndef([_LT_AC_LANG_F77_CONFIG], [AC_DEFUN([_LT_AC_LANG_F77_CONFIG])])
-m4_ifndef([AC_LIBTOOL_LANG_GCJ_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_GCJ_CONFIG])])
-m4_ifndef([_LT_AC_LANG_GCJ_CONFIG], [AC_DEFUN([_LT_AC_LANG_GCJ_CONFIG])])
-m4_ifndef([AC_LIBTOOL_LANG_RC_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_RC_CONFIG])])
-m4_ifndef([_LT_AC_LANG_RC_CONFIG], [AC_DEFUN([_LT_AC_LANG_RC_CONFIG])])
-m4_ifndef([AC_LIBTOOL_CONFIG], [AC_DEFUN([AC_LIBTOOL_CONFIG])])
-m4_ifndef([_LT_AC_FILE_LTDLL_C], [AC_DEFUN([_LT_AC_FILE_LTDLL_C])])
-m4_ifndef([_LT_REQUIRED_DARWIN_CHECKS], [AC_DEFUN([_LT_REQUIRED_DARWIN_CHECKS])])
-m4_ifndef([_LT_AC_PROG_CXXCPP], [AC_DEFUN([_LT_AC_PROG_CXXCPP])])
-m4_ifndef([_LT_PREPARE_SED_QUOTE_VARS], [AC_DEFUN([_LT_PREPARE_SED_QUOTE_VARS])])
-m4_ifndef([_LT_PROG_ECHO_BACKSLASH], [AC_DEFUN([_LT_PROG_ECHO_BACKSLASH])])
-m4_ifndef([_LT_PROG_F77], [AC_DEFUN([_LT_PROG_F77])])
-m4_ifndef([_LT_PROG_FC], [AC_DEFUN([_LT_PROG_FC])])
-m4_ifndef([_LT_PROG_CXX], [AC_DEFUN([_LT_PROG_CXX])])
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/macro.lst b/3rdparty/libpng/libpng-1.6.37/scripts/macro.lst
deleted file mode 100644
index 57124b7..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/macro.lst
+++ /dev/null
@@ -1,3 +0,0 @@
-get_uint_32(buf)
-get_uint_16(buf)
-get_int_32(buf)
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.32sunu b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.32sunu
deleted file mode 100644
index c849ecd..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.32sunu
+++ /dev/null
@@ -1,244 +0,0 @@
-# makefile for libpng on Solaris 2.x with cc
-# Contributed by William L. Sebok, based on makefile.linux
-# Copyright (C) 2002, 2006, 2010-2014 Glenn Randers-Pehrson
-# Copyright (C) 1998 Greg Roelofs
-# Copyright (C) 1996, 1997 Andreas Dilger
-
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Library name:
-LIBNAME=libpng16
-PNGMAJ = 16
-
-# Shared library names:
-LIBSO=$(LIBNAME).so
-LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOREL=$(LIBSOMAJ).$(RELEASE)
-OLDSO=libpng.so
-
-# Utilities:
-CC=cc
-AR_RC=ar rc
-MKDIR_P=mkdir -p
-LN_SF=ln -f -s
-RANLIB=echo
-RM_F=/bin/rm -f
-
-SUN_CC_FLAGS=-fast -xtarget=ultra
-SUN_LD_FLAGS=-fast -xtarget=ultra
-
-# where make install puts libpng.a, libpng16.so and libpng16/png.h
-prefix=/a
-exec_prefix=$(prefix)
-
-# Where the zlib library and include files are located
-# Changing these to ../zlib poses a security risk. If you want
-# to have zlib in an adjacent directory, specify the full path instead of "..".
-#ZLIBLIB=../zlib
-#ZLIBINC=../zlib
-
-ZLIBLIB=/usr/lib
-ZLIBINC=/usr/include
-
-WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
- -Wmissing-declarations -Wtraditional -Wcast-align \
- -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
-CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
-CFLAGS=$(SUN_CC_FLAGS) # $(WARNMORE) -g
-LDFLAGS=$(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB) libpng.a -lz -lm
-
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-OBJSDLL = $(OBJS:.o=.pic.o)
-
-.SUFFIXES: .c .o .pic.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-.c.pic.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -KPIC -o $@ $*.c
-
-all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
-
-include scripts/pnglibconf.mak
-DELETE = $(RM_F)
-DFNFLAGS = $(DEFS) $(CPPFLAGS)
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo libdir=\"$(LIBPATH)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo L_opts=\"-L$(LIBPATH)\"; \
- echo R_opts=\"-R$(LIBPATH)\"; \
- echo ccopts=\"-fast -xtarget=ultra\"; \
- echo ldopts=\"-fast -xtarget=ultra\"; \
- echo libs=\"-lpng16 -lz -lm\"; \
- cat scripts/libpng-config-body.in ) > libpng-config
- chmod +x libpng-config
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
-
-$(LIBSOMAJ): $(OBJSDLL)
- @case "`type ld`" in *ucb*) \
- echo; \
- echo '## WARNING:'; \
- echo '## The commands "CC" and "LD" must NOT refer to /usr/ucb/cc'; \
- echo '## and /usr/ucb/ld. If they do, you need to adjust your PATH'; \
- echo '## environment variable to put /usr/ccs/bin ahead of /usr/ucb.'; \
- echo '## The environment variable LD_LIBRARY_PATH should not be set'; \
- echo '## at all. If it is, things are likely to break because of'; \
- echo '## the libucb dependency that is created.'; \
- echo; \
- ;; \
- esac
- $(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(LIBSOMAJ) \
- -o $(LIBSOMAJ) $(OBJSDLL)
-
-pngtest: pngtest.o $(LIBSO)
- $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
- ./pngtest
-
-install-headers: png.h pngconf.h pnglibconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@$(RM_F) $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(LIBSOREL)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
- chmod 755 $(DL)/$(LIBSOREL)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@$(RM_F) $(DM)/man3/libpng.3
- -@$(RM_F) $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@$(RM_F) $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@$(RM_F) $(DB)/libpng-config
- -@$(RM_F) $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- chmod 755 $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location. Use test-dd to test it
-# before then.
-
-test-dd:
- echo
- echo Testing installed dynamic shared library in $(DL).
- $(CC) $(SUN_CC_FLAGS) -I$(DI) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -o pngtestd -L$(DL) -R$(DL) `$(BINPATH)/$(LIBNAME)-config --ldflags` \
- $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
- ./pngtestd pngtest.png
-
-test-installed:
- echo
- echo Testing installed dynamic shared library.
- $(CC) $(SUN_CC_FLAGS) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags` \
- $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
- ./pngtesti pngtest.png
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
- libpng-config $(LIBSO) $(LIBSOMAJ)* \
- libpng.pc
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.64sunu b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.64sunu
deleted file mode 100644
index 8880fa9..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.64sunu
+++ /dev/null
@@ -1,244 +0,0 @@
-# makefile for libpng on Solaris 2.x with cc
-# Contributed by William L. Sebok, based on makefile.linux
-# Copyright (C) 2002, 2006, 2010-2014 Glenn Randers-Pehrson
-# Copyright (C) 1998 Greg Roelofs
-# Copyright (C) 1996, 1997 Andreas Dilger
-
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Library name:
-LIBNAME=libpng16
-PNGMAJ = 16
-
-# Shared library names:
-LIBSO=$(LIBNAME).so
-LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOREL=$(LIBSOMAJ).$(RELEASE)
-OLDSO=libpng.so
-
-# Utilities:
-CC=cc
-AR_RC=ar rc
-MKDIR_P=mkdir -p
-LN_SF=ln -f -s
-RANLIB=echo
-RM_F=/bin/rm -f
-
-SUN_CC_FLAGS=-fast -xtarget=ultra -xarch=v9
-SUN_LD_FLAGS=-fast -xtarget=ultra -xarch=v9
-
-# where make install puts libpng.a, libpng16.so and libpng16/png.h
-prefix=/a
-exec_prefix=$(prefix)
-
-# Where the zlib library and include files are located
-# Changing these to ../zlib poses a security risk. If you want
-# to have zlib in an adjacent directory, specify the full path instead of "..".
-#ZLIBLIB=../zlib
-#ZLIBINC=../zlib
-
-ZLIBLIB=/usr/lib
-ZLIBINC=/usr/include
-
-WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
- -Wmissing-declarations -Wtraditional -Wcast-align \
- -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
-CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
-CFLAGS= $(SUN_CC_FLAGS) # $(WARNMORE) -g
-LDFLAGS=-L. -R. $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng16 -lz -lm
-
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-OBJSDLL = $(OBJS:.o=.pic.o)
-
-.SUFFIXES: .c .o .pic.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-.c.pic.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -KPIC -o $@ $*.c
-
-all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
-
-include scripts/pnglibconf.mak
-DELETE = $(RM_F)
-DFNFLAGS = $(DEFS) $(CPPFLAGS)
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo libdir=\"$(LIBPATH)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo L_opts=\"-L$(LIBPATH)\"; \
- echo R_opts=\"-R$(LIBPATH)\"; \
- echo ccopts=\"-fast -xtarget=ultra -xarch=v9\"; \
- echo ldopts=\"-fast -xtarget=ultra -xarch=v9\"; \
- echo libs=\"-lpng16 -lz -lm\"; \
- cat scripts/libpng-config-body.in ) > libpng-config
- chmod +x libpng-config
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
-
-$(LIBSOMAJ): $(OBJSDLL)
- @case "`type ld`" in *ucb*) \
- echo; \
- echo '## WARNING:'; \
- echo '## The commands "CC" and "LD" must NOT refer to /usr/ucb/cc'; \
- echo '## and /usr/ucb/ld. If they do, you need to adjust your PATH'; \
- echo '## environment variable to put /usr/ccs/bin ahead of /usr/ucb.'; \
- echo '## The environment variable LD_LIBRARY_PATH should not be set'; \
- echo '## at all. If it is, things are likely to break because of'; \
- echo '## the libucb dependency that is created.'; \
- echo; \
- ;; \
- esac
- $(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(LIBSOMAJ) \
- -o $(LIBSOMAJ) $(OBJSDLL)
-
-pngtest: pngtest.o $(LIBSO)
- $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
- ./pngtest
-
-install-headers: png.h pngconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@$(RM_F) $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(LIBSOREL)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
- chmod 755 $(DL)/$(LIBSOREL)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@$(RM_F) $(DM)/man3/libpng.3
- -@$(RM_F) $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@$(RM_F) $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@$(RM_F) $(DB)/libpng-config
- -@$(RM_F) $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- chmod 755 $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location. Use test-dd to test it
-# before then.
-
-test-dd:
- echo
- echo Testing installed dynamic shared library in $(DL).
- $(CC) $(SUN_CC_FLAGS) -I$(DI) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -o pngtestd -L$(DL) -R$(DL) `$(BINPATH)/$(LIBNAME)-config --ldflags` \
- $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
- ./pngtestd pngtest.png
-
-test-installed:
- echo
- echo Testing installed dynamic shared library.
- $(CC) $(SUN_CC_FLAGS) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags` \
- $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
- ./pngtesti pngtest.png
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
- libpng-config $(LIBSO) $(LIBSOMAJ)* \
- libpng.pc
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.acorn b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.acorn
deleted file mode 100644
index 00b8fb5..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.acorn
+++ /dev/null
@@ -1,57 +0,0 @@
-# Project: libpng
-
-
-# Toolflags:
-CCflags = -c -depend !Depend -IC:,Zlib: -g -throwback -DRISCOS -fnah
-C++flags = -c -depend !Depend -IC: -throwback
-Linkflags = -aif -c++ -o $@
-ObjAsmflags = -throwback -NoCache -depend !Depend
-CMHGflags =
-LibFileflags = -c -l -o $@
-Squeezeflags = -o $@
-
-# Final targets:
-@.libpng-lib: @.o.png @.o.pngerror @.o.pngrio @.o.pngwio @.o.pngmem \
- @.o.pngpread @.o.pngset @.o.pngget @.o.pngread @.o.pngrtran \
- @.o.pngrutil @.o.pngtrans @.o.pngwrite @.o.pngwtran @.o.pngwutil
- LibFile $(LibFileflags) @.o.png @.o.pngerror @.o.pngrio @.o.pngrtran \
- @.o.pngmem @.o.pngpread @.o.pngset @.o.pngget @.o.pngread @.o.pngwio \
- @.o.pngrutil @.o.pngtrans @.o.pngwrite @.o.pngwtran @.o.pngwutil
-@.mm-libpng-lib: @.mm.png @.mm.pngerror @.mm.pngrio @.mm.pngwio @.mm.pngmem \
- @.mm.pngpread @.mm.pngset @.mm.pngget @.mm.pngread @.mm.pngrtran \
- @.mm.pngrutil @.mm.pngtrans @.mm.pngwrite @.mm.pngwtran @.mm.pngwutil
- LibFile $(LibFileflags) @.mm.png @.mm.pngerror @.mm.pngrio \
- @.mm.pngwio @.mm.pngmem @.mm.pngpread @.mm.pngset @.mm.pngget \
- @.mm.pngread @.mm.pngrtran @.mm.pngrutil @.mm.pngtrans @.mm.pngwrite \
- @.mm.pngwtran @.mm.pngwutil
-
-
-# User-editable dependencies:
-# (C) Copyright 1997 Tom Tanner
-Test: @.pngtest
- <Prefix$Dir>.pngtest
- @remove <Prefix$Dir>.pngtest
-
-#It would be nice if you could stop "make" listing from here on!
-@.pngtest: @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib
- Link $(Linkflags) @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib
-
-.SUFFIXES: .o .mm .c
-
-.c.mm:
- MemCheck.CC cc $(ccflags) -o $@ LibPng:$<
-.c.o:
- cc $(ccflags) -o $@ $<
-
-# See scripts.mak.libpngconf for how to generate this:
-@.h.libpngconf: @.scripts.h.libpngconf
- copy @.scripts.h.libpngconf $@
-
-# Static dependencies:
-@.o.png @.o.pngerror @.o.pngrio @.o.pngwio @.o.pngmem \
-@.o.pngpread @.o.pngset @.o.pngget @.o.pngread @.o.pngrtran \
-@.o.pngrutil @.o.pngtrans @.o.pngwrite @.o.pngwtran @.o.pngwutil \
-@.o.pngtest: @.h.libpngconf
-
-
-# Dynamic dependencies:
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.aix b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.aix
deleted file mode 100644
index 5f62d50..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.aix
+++ /dev/null
@@ -1,116 +0,0 @@
-# makefile for libpng using gcc (generic, static library)
-# Copyright (C) 2002, 2006-2009, 2014 Glenn Randers-Pehrson
-# Copyright (C) 2000 Cosmin Truta
-# Copyright (C) 2000 Marc O. Gloor (AIX support added, from makefile.gcc)
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Location of the zlib library and include files
-ZLIBINC = ../zlib
-ZLIBLIB = ../zlib
-
-# Compiler, linker, lib and other tools
-CC = gcc
-LD = $(CC)
-AR_RC = ar rcs
-MKDIR_P = mkdir -p
-RANLIB = ranlib
-RM_F = rm -f
-LN_SF = ln -f -s
-
-LIBNAME = libpng16
-PNGMAJ = 16
-
-prefix=/usr/local
-INCPATH=$(prefix)/include
-LIBPATH=$(prefix)/lib
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-
-WARNMORE =
-CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5
-CFLAGS = -W -Wall -O2 # $(WARNMORE) -g
-LDFLAGS = -L. -L$(ZLIBLIB) -lpng16 -lz -lm
-
-# Variables
-OBJS = png.o pngerror.o pngget.o pngmem.o pngpread.o \
- pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \
- pngtrans.o pngwio.o pngwrite.o pngwtran.o pngwutil.o
-
-# Targets
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-all: $(LIBNAME).a pngtest$(E)
-
-include scripts/pnglibconf.mak
-REMOVE = $(RM_F)
-DFNFLAGS = $(DEFS) $(CPPFLAGS)
-
-$(LIBNAME).a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-test: pngtest$(E)
- ./pngtest$(E)
-
-pngtest$(E): pngtest.o $(LIBNAME).a
- $(LD) -o $@ pngtest.o $(LDFLAGS)
-
-install: $(LIBNAME).a
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DI)/$(LIBNAME)/png.h
- -@$(RM_F) $(DI)/$(LIBNAME)/pngconf.h
- -@$(RM_F) $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) $(DI)/png.h
- -@$(RM_F) $(DI)/pngconf.h
- -@$(RM_F) $(DI)/pnglibconf.h
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h \
- $(DI)/$(LIBNAME)/pngconf.h \
- $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) -r $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
- -@$(RM_F) $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- cp $(LIBNAME).a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
- (cd $(DI); $(LN_SF) libpng/* .;)
-
-clean:
- $(RM_F) *.o $(LIBNAME).a pngtest pngout.png pnglibconf.h
-
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.amiga b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.amiga
deleted file mode 100644
index 16a4bd5..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.amiga
+++ /dev/null
@@ -1,58 +0,0 @@
-# Commodore Amiga Makefile
-# makefile for libpng and SAS C V6.5x compiler
-# Copyright (C) 1995-2000 Wolf Faust
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-#
-# Location/path of zlib include files
-ZLIB=/zlib
-#compiler
-CC=sc
-#compiler flags
-# WARNING: a bug in V6.51 causes bad code with OPTGO
-# So use V6.55 or set NOOPTGO!!!!!!!!!
-CFLAGS= NOSTKCHK PARMS=REG OPTIMIZE OPTGO OPTPEEP OPTINLOCAL OPTINL\
- OPTLOOP OPTRDEP=4 OPTDEP=4 OPTCOMP=4 INCLUDEDIR=$(ZLIB) \
- DEFINE=PNG_INTERNAL
-#linker flags
-LDFLAGS= SD ND BATCH
-#link libs
-LDLIBS= libpng.lib libgz.lib LIB:scm.lib LIB:sc.lib Lib:amiga.lib
-# linker
-LN= slink
-# file deletion command
-RM= delete quiet
-# library (.lib) file creation command
-AR= oml
-# make directory command
-MKDIR= makedir
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-all: libpng.lib pngtest
-
-libpng.lib: $(OBJS)
--$(RM) libpng.lib
-$(AR) libpng.lib r $(OBJS)
-
-$(OBJS): pngpriv.h png.h pngconf.h pnglibconf.h pnginfo.h pngstruct.h pngdebug.h
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
-COPY $(PNGLIBCONF_H_PREBUILT) TO pnglibconf.h
-
-pngtest: pngtest.o libpng.lib
-$(LN) <WITH <
-$(LDFLAGS)
-TO pngtest
-FROM LIB:c.o pngtest.o
-LIB $(LDLIBS)
-<
-
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.atari b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.atari
deleted file mode 100644
index b5dbd49..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.atari
+++ /dev/null
@@ -1,71 +0,0 @@
-# makefile for libpng
-# Copyright (C) 2002, 2014 Glenn Randers-Pehrson
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-#
-# Modified for LC56/ATARI assumes libz.lib is in same dir and uses default
-# rules for library management
-#
-CPPFLAGS = -I..\zlib
-CFLAGS = -O
-LBR = png.lib
-LDFLAGS = -L. -L..\zlib -lpng -lz -lm
-
-# where make install puts libpng.a and png.h
-prefix=/usr/local
-INCPATH=$(prefix)/include
-LIBPATH=$(prefix)/lib
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = $(LBR)(png.o) $(LBR)(pngset.o) $(LBR)(pngget.o) $(LBR)(pngrutil.o)\
- $(LBR)(pngtrans.o) $(LBR)(pngwutil.o)\
- $(LBR)(pngread.o) $(LBR)(pngerror.o) $(LBR)(pngwrite.o)\
- $(LBR)(pngrtran.o) $(LBR)(pngwtran.o)\
- $(LBR)(pngmem.o) $(LBR)(pngrio.o) $(LBR)(pngwio.o) $(LBR)(pngpread.o)
-
-all: $(LBR) pngtest.ttp
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
-
-$(LBR): $(OBJS)
-
-$(OBJS): pngpriv.h png.h pngconf.h pnglibconf.h pnginfo.h pngstruct.h pngdebug.h
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- cp $(PNGLIBCONF_H_PREBUILT) $@
-
-pngtest.ttp: pngtest.o $(LBR)
- $(CC) $(CFLAGS) $(LDFLAGS) -o$@ pngtest.o
-
-install: libpng.a
- -@mkdir $(DESTDIR)$(INCPATH)
- -@mkdir $(DESTDIR)$(INCPATH)/libpng
- -@mkdir $(DESTDIR)$(LIBPATH)
- -@rm -f $(DESTDIR)$(INCPATH)/png.h
- -@rm -f $(DESTDIR)$(INCPATH)/pngconf.h
- -@rm -f $(DESTDIR)$(INCPATH)/pnglibconf.h
- cp png.h $(DESTDIR)$(INCPATH)/libpng
- cp pngconf.h $(DESTDIR)$(INCPATH)/libpng
- cp pnglibconf.h $(DESTDIR)$(INCPATH)/libpng
- chmod 644 $(DESTDIR)$(INCPATH)/libpng/png.h
- chmod 644 $(DESTDIR)$(INCPATH)/libpng/pngconf.h
- chmod 644 $(DESTDIR)$(INCPATH)/libpng/pnglibconf.h
- (cd $(DESTDIR)$(INCPATH); ln -f -s $(LIBNAME) libpng; \
- ln -f -s $(LIBNAME)/* .)
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.bc32 b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.bc32
deleted file mode 100644
index bdbc4cb..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.bc32
+++ /dev/null
@@ -1,158 +0,0 @@
-# Makefile for libpng
-# 32-bit Borland C++ (Note: All modules are compiled in C mode)
-# To build the library, do:
-# "make -fmakefile.bc32"
-#
-# -------------------- 32-bit Borland C++ --------------------
-
-### Absolutely necessary for this makefile to work
-.AUTODEPEND
-
-## Where zlib.h, zconf.h and zlib.lib are
-ZLIB_DIR=..\zlib
-
-## Compiler, linker, librarian and other tools
-CC=bcc32
-LD=bcc32
-LIB=tlib
-CP=copy
-
-# -3 = 386, -4 = 486, -5 = Pentium etc.
-!ifndef TARGET_CPU
-#TARGET_CPU=-6
-!endif
-
-# Use this if you don't want Borland's fancy exception handling
-# (Caution: doesn't work with CBuilderX)
-#NOEHLIB=noeh32.lib
-
-!ifdef DEBUG
-CDEBUG=-v
-LDEBUG=-v
-!else
-CDEBUG=
-LDEBUG=
-!endif
-
-# STACKOFLOW=1
-!ifdef STACKOFLOW
-CDEBUG=$(CDEBUG) -N
-LDEBUG=$(LDEBUG) -N
-!endif
-
-# -O2 optimize for speed
-# -d merge duplicate strings
-# -k- turn off standard stack frame
-# -w display all warnings
-CPPFLAGS=-I$(ZLIB_DIR)
-CFLAGS=-O2 -d -k- -w $(TARGET_CPU) $(CDEBUG)
-
-# -M generate map file
-LDFLAGS=-L$(ZLIB_DIR) -M $(LDEBUG)
-
-# Pre-built configuration
-# See scripts\pnglibconf.mak for more options
-!ifndef PNGLIBCONF_H_PREBUILT
-PNGLIBCONF_H_PREBUILT = scripts\pnglibconf.h.prebuilt
-!endif
-
-## Variables
-OBJS = \
- png.obj \
- pngerror.obj \
- pngget.obj \
- pngmem.obj \
- pngpread.obj \
- pngread.obj \
- pngrio.obj \
- pngrtran.obj \
- pngrutil.obj \
- pngset.obj \
- pngtrans.obj \
- pngwio.obj \
- pngwrite.obj \
- pngwtran.obj \
- pngwutil.obj
-
-LIBOBJS = \
- +png.obj \
- +pngerror.obj \
- +pngget.obj \
- +pngmem.obj \
- +pngpread.obj \
- +pngread.obj \
- +pngrio.obj \
- +pngrtran.obj \
- +pngrutil.obj \
- +pngset.obj \
- +pngtrans.obj \
- +pngwio.obj \
- +pngwrite.obj \
- +pngwtran.obj \
- +pngwutil.obj
-
-LIBNAME=libpng.lib
-
-## Implicit rules
-# Braces let make "batch" calls to the compiler,
-# 2 calls instead of 12; space is important.
-.c.obj:
- $(CC) $(CPPFLAGS) $(CFLAGS) -c {$*.c }
-
-.c.exe:
- $(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) $*.c \
- $(LIBNAME) zlib.lib $(NOEHLIB)
-
-.obj.exe:
- $(LD) $(LDFLAGS) $*.obj $(LIBNAME) zlib.lib $(NOEHLIB)
-
-## Major targets
-all: libpng pngtest
-
-libpng: $(LIBNAME)
-
-pngtest: pngtest.exe
-
-test: pngtest.exe
- pngtest
-
-## Minor Targets
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-png.obj: png.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.obj: pngerror.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.obj: pngget.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.obj: pngmem.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.obj: pngpread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.obj: pngread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.obj: pngrio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.obj: pngrtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.obj: pngrutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.obj: pngset.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.obj: pngtrans.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.obj: pngwio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.obj: pngwrite.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.obj: pngwtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.obj: pngwutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtest.obj: pngtest.c png.h pngconf.h pnglibconf.h
-
-$(LIBNAME): $(OBJS)
- -del $(LIBNAME)
- $(LIB) $(LIBNAME) @&&|
-$(LIBOBJS), libpng
-|
-
-# Cleanup
-clean:
- -del pnglibconf.h
- -del *.obj
- -del $(LIBNAME)
- -del pngtest.exe
- -del *.lst
- -del *.map
- -del *.tds
- -del pngout.png
-
-# End of makefile for libpng
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.beos b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.beos
deleted file mode 100644
index 01346f1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.beos
+++ /dev/null
@@ -1,222 +0,0 @@
-# makefile for libpng on BeOS x86 ELF with gcc
-# modified from makefile.linux by Sander Stoks
-# Copyright (C) 2002, 2006, 2008, 2010-2014 Glenn Randers-Pehrson
-# Copyright (C) 1999 Greg Roelofs
-# Copyright (C) 1996, 1997 Andreas Dilger
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Library name:
-LIBNAME=libpng16
-PNGMAJ = 16
-
-# Shared library names:
-LIBSO=$(LIBNAME).so
-LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOREL=$(LIBSOMAJ).$(RELEASE)
-OLDSO=libpng.so
-
-# Utilities:
-CC=gcc
-AR_RC=ar rc
-MKDIR_P=mkdir -p
-LN_SF=ln -sf
-RANLIB=ranlib
-CP=cp
-RM_F=/bin/rm -f
-
-# Where the zlib library and include files are located
-ZLIBLIB=/usr/local/lib
-ZLIBINC=/usr/local/include
-
-ALIGN=
-# For i386:
-# ALIGN=-malign-loops=2 -malign-functions=2
-
-WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
- -Wmissing-declarations -Wtraditional -Wcast-align \
- -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
-
-# On BeOS, -O1 is actually better than -O3. This is a known bug but it's
-# still here in R4.5
-CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
-CFLAGS=-W -Wall -O1 -funroll-loops $(ALIGN) # $(WARNMORE) -g
-# LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng -lz
-LDFLAGS=-L. -Wl,-soname=$(LIBSOMAJ) -L$(ZLIBLIB) -lz
-
-# where make install puts libpng.a, libpng16.so*, and png.h
-prefix=/usr/local
-exec_prefix=$(prefix)
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-OBJSDLL = $(OBJS)
-
-.SUFFIXES: .c .o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo libs=\"-lpng16 -lz \"; \
- cat scripts/libpng-config-body.in ) > libpng-config
- chmod +x libpng-config
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
- cp $(LIBSO)* /boot/home/config/lib
-
-$(LIBSOMAJ): $(OBJSDLL)
- $(CC) -nostart -Wl,-soname,$(LIBSOMAJ) -o \
- $(LIBSOMAJ) $(OBJSDLL) $(LDFLAGS)
-
-pngtest: pngtest.o $(LIBSO)
- $(CC) -L$(ZLIBLIB) -L. -lz -lpng16 -o pngtest pngtest.o
-
-test: pngtest
- ./pngtest
-
-install-headers: png.h pngconf.h pnglibconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@$(RM_F) $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(LIBSOREL)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
- chmod 755 $(DL)/$(LIBSOREL)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@$(RM_F) $(DM)/man3/libpng.3
- -@$(RM_F) $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@$(RM_F) $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@$(RM_F) $(DB)/libpng-config
- -@$(RM_F) $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- chmod 755 $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location. Use test-dd to test it
-# before then.
-
-test-dd:
- echo
- echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) $(CPPFLAGS) $(CFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(DL) -L$(ZLIBLIB) -Wl,-rpath $(ZLIBLIB):$(DL) \
- -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtestd pngtest.png
-
-test-installed:
- $(CC) $(CPPFLAGS) $(CFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
- -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtesti pngtest.png
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
- $(LIBSO) $(LIBSOMAJ)* pngtesti \
- pnglibconf.h libpng.pc
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.cegcc b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.cegcc
deleted file mode 100644
index 6f915c2..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.cegcc
+++ /dev/null
@@ -1,116 +0,0 @@
-# Makefile for creating Windows CE release archives, with the
-# mingw32ce compiler.
-
-# Last updated: 22-Jul-2008
-
-# Copyright (C) 2008 Vincent Torri
-
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# To get some help, type
-#
-# make help
-#
-# To create the archives
-#
-# make
-#
-# To remove everything, type:
-#
-# make clean
-
-VERMAJ = 1
-VERMIN = 6
-VERMIC = 37
-VER = $(VERMAJ).$(VERMIN).$(VERMIC)
-NAME = libpng
-PACKAGE = $(NAME)-$(VER)
-
-BIN = libpng16-0.dll
-LIB = libpng16.a libpng16.dll.a libpng.a libpng.dll.a
-INCLUDE = png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-PC = libpng16.pc libpng.pc
-
-MANIFESTVERBIN = "Libpng-$(VER): Binary files"
-MANIFESTVERDEV = "Libpng-$(VER): Developer files"
-MANIFESTVERDESC = "Libpng: the official PNG reference library"
-
-all: $(NAME)
-
-$(NAME): remove-old copy-src compilation copy manifest archive
- @echo " * Removal of the directories"
- @rm -rf $(PACKAGE)/ $(PACKAGE)-bin/ $(PACKAGE)-dev/
-
-remove-old:
- @echo " * Removal of the old files"
- @rm -rf $(PACKAGE)-bin*
- @rm -rf $(PACKAGE)-dev*
-
-copy-src:
- @echo " * Copy of source files"
- @cp -R ../src/$(PACKAGE) .
- @echo " * Creation of directories and files"
- @mkdir -p $(PACKAGE)-bin/bin
- @mkdir -p $(PACKAGE)-bin/manifest
- @mkdir -p $(PACKAGE)-dev/lib/pkgconfig
- @mkdir -p $(PACKAGE)-dev/include/$(NAME)$(VERMAJ)$(VERMIN)
- @mkdir -p $(PACKAGE)-dev/manifest
- @touch $(PACKAGE)-bin/manifest/$(PACKAGE)-bin.mft
- @touch $(PACKAGE)-bin/manifest/$(PACKAGE)-bin.ver
- @touch $(PACKAGE)-dev/manifest/$(PACKAGE)-dev.mft
- @touch $(PACKAGE)-dev/manifest/$(PACKAGE)-dev.ver
-
-compilation:
- @echo " * Compilation of $(PACKAGE)"
- cd $(PACKAGE) && CPPFLAGS="$(CPPFLAGS) -DPNG_CONSOLE_IO_SUPPORTED -D_WIN32_WCE=0x0420" \
- CFLAGS="$(CFLAGS) -mms-bitfields -O3 -pipe -fomit-frame-pointer" \
- LDFLAGS="$(LDFLAGS) -Wl,--enable-auto-import -Wl,-s" \
- ./configure --prefix=/opt/wince --host=arm-mingw32ce && make
-
-copy:
- @echo " * Copy of binary and development files"
- @for i in $(BIN); do \
- cp $(PACKAGE)/.libs/$$i $(PACKAGE)-bin/bin; \
- done
- @for i in $(LIB); do \
- cp $(PACKAGE)/.libs/$$i $(PACKAGE)-dev/lib; \
- done
- @for i in $(INCLUDE); do \
- cp $(PACKAGE)/$$i $(PACKAGE)-dev/include/$(NAME)$(VERMAJ)$(VERMIN); \
- done
- @for i in $(PC); do \
- cp $(PACKAGE)/$$i $(PACKAGE)-dev/lib/pkgconfig; \
- done
-
-manifest:
- @echo " * Creation of the manifest"
- @cd $(PACKAGE)-bin && find * >> manifest/$(PACKAGE)-bin.mft
- @cd $(PACKAGE)-bin && \
- echo $(MANIFESTVERBIN) >> manifest/$(PACKAGE)-bin.ver && \
- echo $(MANIFESTVERDESC) >> manifest/$(PACKAGE)-bin.ver
- @cd $(PACKAGE)-dev && find * >> manifest/$(PACKAGE)-dev.mft
- @cd $(PACKAGE)-dev && \
- echo $(MANIFESTVERDEV) >> manifest/$(PACKAGE)-dev.ver && \
- echo $(MANIFESTVERDESC) >> manifest/$(PACKAGE)-dev.ver
-
-archive:
- @echo " * Creation of the archives"
- @tar cf $(PACKAGE)-bin.tar $(PACKAGE)-bin
- @bzip2 -9 $(PACKAGE)-bin.tar
- @tar cf $(PACKAGE)-dev.tar $(PACKAGE)-dev
- @bzip2 -9 $(PACKAGE)-dev.tar
-
-clean:
- @echo " * Cleaning"
- @rm -rf $(PACKAGE)*
-
-help:
- @echo
- @echo "To create the archives, type:"
- @echo " make"
- @echo
- @echo "To remove everything, type:"
- @echo " make clean"
- @echo
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.clang b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.clang
deleted file mode 100644
index fcaefae..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.clang
+++ /dev/null
@@ -1,87 +0,0 @@
-# makefile for libpng using clang (generic, static library)
-# Copyright (C) 2008, 2014 Glenn Randers-Pehrson
-# Copyright (C) 2000, 2014, 2019 Cosmin Truta
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Location of the zlib library and include files
-ZLIBINC = ../zlib
-ZLIBLIB = ../zlib
-
-# Compiler, linker, lib and other tools
-CC = clang
-LD = $(CC)
-AR_RC = ar rcs
-RANLIB = ranlib
-CP = cp
-RM_F = rm -f
-
-WARNMORE = -Wwrite-strings -Wpointer-arith -Wshadow \
- -Wmissing-declarations -Wtraditional -Wcast-align \
- -Wstrict-prototypes -Wmissing-prototypes # -Wconversion
-CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5
-CFLAGS = -W -Wall -O2 # $(WARNMORE) -g
-LDFLAGS = -L$(ZLIBLIB)
-LIBS = -lz -lm
-
-# File extensions
-EXEEXT =
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-# Variables
-OBJS = png.o pngerror.o pngget.o pngmem.o pngpread.o \
- pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \
- pngtrans.o pngwio.o pngwrite.o pngwtran.o pngwutil.o
-
-# Targets
-all: static
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-static: libpng.a pngtest$(EXEEXT)
-
-shared:
- @echo This is a generic makefile that cannot create shared libraries.
- @echo Please use a configuration that is specific to your platform.
- @false
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-test: pngtest$(EXEEXT)
- ./pngtest$(EXEEXT)
-
-pngtest$(EXEEXT): pngtest.o libpng.a
- $(LD) $(LDFLAGS) -o $@ pngtest.o libpng.a $(LIBS)
-
-clean:
- $(RM_F) *.o libpng.a pngtest$(EXEEXT) pngout.png pnglibconf.h
-
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.clang-asan b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.clang-asan
deleted file mode 100644
index 0cab52f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.clang-asan
+++ /dev/null
@@ -1,87 +0,0 @@
-# makefile for libpng using clang + address sanitizer (generic, static library)
-# Copyright (C) 2008, 2014 Glenn Randers-Pehrson
-# Copyright (C) 2000, 2014, 2019 Cosmin Truta
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Location of the zlib library and include files
-ZLIBINC = ../zlib
-ZLIBLIB = ../zlib
-
-# Compiler, linker, lib and other tools
-CC = clang
-LD = $(CC)
-AR_RC = ar rcs
-RANLIB = ranlib
-CP = cp
-RM_F = rm -f
-
-WARNMORE = -Wwrite-strings -Wpointer-arith -Wshadow \
- -Wmissing-declarations -Wtraditional -Wcast-align \
- -Wstrict-prototypes -Wmissing-prototypes # -Wconversion
-CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5
-CFLAGS = -W -Wall -O0 -g -fsanitize=address
-LDFLAGS = -L$(ZLIBLIB) -g -fsanitize=address
-LIBS = -lz -lm
-
-# File extensions
-EXEEXT =
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-# Variables
-OBJS = png.o pngerror.o pngget.o pngmem.o pngpread.o \
- pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \
- pngtrans.o pngwio.o pngwrite.o pngwtran.o pngwutil.o
-
-# Targets
-all: static
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-static: libpng.a pngtest$(EXEEXT)
-
-shared:
- @echo This is a generic makefile that cannot create shared libraries.
- @echo Please use a configuration that is specific to your platform.
- @false
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-test: pngtest$(EXEEXT)
- ./pngtest$(EXEEXT)
-
-pngtest$(EXEEXT): pngtest.o libpng.a
- $(LD) $(LDFLAGS) -o $@ pngtest.o libpng.a $(LIBS)
-
-clean:
- $(RM_F) *.o libpng.a pngtest$(EXEEXT) pngout.png pnglibconf.h
-
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.darwin b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.darwin
deleted file mode 100644
index 33c27cc..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.darwin
+++ /dev/null
@@ -1,225 +0,0 @@
-# makefile for libpng on Darwin / Mac OS X
-# Copyright (C) 2002, 2004, 2006, 2008, 2010-2014 Glenn Randers-Pehrson
-# Copyright (C) 2001 Christoph Pfisterer
-# derived from makefile.linux:
-# Copyright (C) 1998, 1999 Greg Roelofs
-# Copyright (C) 1996, 1997 Andreas Dilger
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# where "make install" puts libpng.a, libpng16.dylib, png.h, pngconf.h,
-# and pnglibconf.h
-prefix=/usr/local
-exec_prefix=$(prefix)
-
-# Where the zlib library and include files are located
-ZLIBLIB=/usr/lib
-ZLIBINC=/usr/include
-
-# Library name:
-LIBNAME = libpng16
-PNGMAJ = 16
-
-# Shared library names:
-LIBSO=$(LIBNAME).dylib
-LIBSOMAJ=$(LIBNAME).$(PNGMAJ).dylib
-LIBSOREL=$(LIBNAME).$(PNGMAJ).$(RELEASE).dylib
-OLDSO=libpng.dylib
-
-# Utilities:
-CC=cc
-AR_RC=ar rc
-MKDIR_P=mkdir -p
-LN_SF=ln -sf
-RANLIB=ranlib
-CP=cp
-RM_F=/bin/rm -f
-
-CPPFLAGS=-I$(ZLIBINC)
-# CFLAGS=-W -Wall -O3 -funroll-loops
-CFLAGS=-W -Wall -O -funroll-loops
-LDFLAGS=-L. -L$(ZLIBLIB) -lpng16 -lz
-
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-OBJSDLL = $(OBJS:.o=.pic.o)
-
-.SUFFIXES: .c .o .pic.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-.c.pic.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -fno-common -o $@ $*.c
-
-all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo L_opts=\"-L$(LIBPATH)\"; \
- echo libs=\"-lpng16 -lz\"; \
- cat scripts/libpng-config-body.in ) > libpng-config
- chmod +x libpng-config
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
-
-$(LIBSOMAJ): $(OBJSDLL)
- $(CC) -dynamiclib \
- -install_name $(LIBPATH)/$(LIBSOMAJ) \
- -current_version 16 -compatibility_version 16 \
- -o $(LIBSOMAJ) \
- $(OBJSDLL) -L$(ZLIBLIB) -lz
-
-pngtest: pngtest.o $(LIBSO)
- $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
- ./pngtest
-
-install-headers: png.h pngconf.h pnglibconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@$(RM_F) $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- $(RANLIB) $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(LIBSOMAJ)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSOMAJ) $(DL)
- chmod 755 $(DL)/$(LIBSOMAJ)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@$(RM_F) $(DM)/man3/libpng.3
- -@$(RM_F) $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@$(RM_F) $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@$(RM_F) $(DB)/libpng-config
- -@$(RM_F) $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- chmod 755 $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location. Use test-dd to test it
-# before then.
-
-test-dd:
- echo
- echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(DL) -L$(ZLIBLIB) \
- -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtestd pngtest.png
-
-test-installed:
- $(CC) $(CPPFLAGS) $(CFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(ZLIBLIB) \
- -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtesti pngtest.png
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
- libpng.pc $(LIBNAME).*dylib pngtesti pnglibconf.h
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.dec b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.dec
deleted file mode 100644
index 8566a02..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.dec
+++ /dev/null
@@ -1,210 +0,0 @@
-# makefile for libpng on DEC Alpha Unix
-# Copyright (C) 2000-2002, 2006, 2010-2014 Glenn Randers-Pehrson
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Library name:
-PNGMAJ = 16
-LIBNAME = libpng16
-
-# Shared library names:
-LIBSO=$(LIBNAME).so
-LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOREL=$(LIBSOMAJ).$(RELEASE)
-OLDSO=libpng.so
-
-# Utilities:
-AR_RC=ar rc
-CC=cc
-MKDIR_P=mkdir
-LN_SF=ln -f -s
-RANLIB=ranlib
-CP=cp
-RM_F=/bin/rm -f
-
-# where make install puts libpng.a and png.h
-prefix=/usr/local
-exec_prefix=$(prefix)
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-# Where the zlib library and include files are located
-#ZLIBLIB=/usr/local/lib
-#ZLIBINC=/usr/local/include
-ZLIBLIB=../zlib
-ZLIBINC=../zlib
-
-CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
-CFLAGS=-std -w1 -O # -g
-LDFLAGS=-L$(ZLIBLIB) -rpath $(ZLIBLIB) libpng.a -lz -lm
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-all: $(LIBSO) libpng.a pngtest libpng.pc libpng-config
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo ccopts=\"-std\"; \
- echo L_opts=\"-L$(LIBPATH)\"; \
- echo libs=\"-lpng16 -lz -lm\"; \
- cat scripts/libpng-config-body.in ) > libpng-config
- chmod +x libpng-config
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
-
-$(LIBSOMAJ): $(OBJS)
- $(CC) -shared -o $@ $(OBJS) -L$(ZLIBLIB) \
- -soname $(LIBSOMAJ)
-
-pngtest: pngtest.o libpng.a
- $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
- ./pngtest
-
-install-headers: png.h pngconf.h pnglibconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
- -@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@/bin/rm -f $(DI)/libpng
- (cd $(DI); $(LN_SF)(LIBNAME) libpng; $(LN_SF)(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- -@/bin/rm -f $(DL)/libpng.a
- (cd $(DL); $(LN_SF)(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(LIBSOREL)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
- chmod 755 $(DL)/$(LIBSOREL)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@/bin/rm -f $(DM)/man3/libpng.3
- -@/bin/rm -f $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@/bin/rm -f $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@/bin/rm -f $(DB)/libpng-config
- -@/bin/rm -f $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- chmod 755 $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF)(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location. Use test-dd to test it
-# before then.
-
-test-dd:
- echo
- echo Testing installed dynamic shared library in $(DL).
- $(CC) -w1 -I$(DI) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(DL) -L$(ZLIBLIB) -R$(ZLIBLIB) -R$(DL) \
- -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtestd pngtest.png
-
-test-installed:
- echo
- echo Testing installed dynamic shared library.
- $(CC) -w1 $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(ZLIBLIB) -R$(ZLIBLIB) \
- -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtesti pngtest.png
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
- libpng-config $(LIBSO) $(LIBSOMAJ)* \
- libpng.pc pnglibconf.h
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.dj2 b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.dj2
deleted file mode 100644
index e59c432..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.dj2
+++ /dev/null
@@ -1,72 +0,0 @@
-# DJGPP (DOS gcc) makefile for libpng
-# Copyright (C) 2002, 2006, 2009-2014 Glenn Randers-Pehrson
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# where make install will put libpng.a and png.h
-#prefix=/usr/local
-prefix=.
-INCPATH=$(prefix)/include
-LIBPATH=$(prefix)/lib
-
-CC=gcc
-CPPFLAGS=-I../zlib -DPNG_NO_SNPRINTF
-CFLAGS=-O
-LDFLAGS=-L. -L../zlib/ -lpng -lz -lm
-
-RANLIB=ranlib
-
-CP=cp
-RM_F=rm -f
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o pngwtran.o \
- pngmem.o pngerror.o pngpread.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-all: libpng.a pngtest
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng.a: $(OBJS)
- ar rc $@ $(OBJS)
- $(RANLIB) $@
-
-pngtest: pngtest.o libpng.a
- $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
- coff2exe pngtest
-
-test: pngtest
- ./pngtest
-clean:
- $(RM_F) *.o libpng.a pngtest pngout.png pnglibconf.h
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.freebsd b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.freebsd
deleted file mode 100644
index 5fec61e..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.freebsd
+++ /dev/null
@@ -1,69 +0,0 @@
-# makefile for libpng under FreeBSD
-# Copyright (C) 2014 Glenn Randers-Pehrson and Andrey A. Chernov
-# Copyright (C) 2002, 2007, 2009 Glenn Randers-Pehrson and Andrey A. Chernov
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-PREFIX?= /usr/local
-SHLIB_VER?= 16
-
-LIB= png
-SHLIB_MAJOR= ${SHLIB_VER}
-SHLIB_MINOR= 0
-NO_PROFILE= YES
-NO_OBJ= YES
-
-# where make install puts libpng.a and png.h
-DESTDIR= ${PREFIX}
-LIBDIR= /lib
-INCS= png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-INCSDIR= /include/libpng
-INCDIR= ${INCSDIR} # for 4.x bsd.lib.mk
-MAN= libpng.3 libpngpf.3 png.5
-MANDIR= /man/man
-SYMLINKS= libpng/png.h ${INCSDIR}/../png.h \
- libpng/pngconf.h ${INCSDIR}/../pngconf.h \
- libpng/pnglibconf.h ${INCSDIR}/../pnglibconf.h
-
-# where make install finds libz.a and zlib.h
-ZLIBLIB= /usr/lib
-ZLIBINC= /usr/include
-
-LDADD+= -lm -lz
-#LDADD+= -lm -lz -lssp_nonshared # for OSVERSION < 800000 ?
-
-DPADD+= ${LIBM} ${LIBZ}
-
-CPPFLAGS+= -I. -I${ZLIBINC}
-CFLAGS+= -W -Wall
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT= scripts/pnglibconf.h.prebuilt
-
-SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
- pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
- pngwtran.c pngmem.c pngerror.c pngpread.c
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-pngtest: pngtest.o libpng.a
- ${CC} ${CFLAGS} -L. -static -o pngtest pngtest.o -L${ZLIBLIB} \
- -lpng ${LDADD}
-
-CLEANFILES= pngtest pngtest.o pngout.png
-
-test: pngtest
- ./pngtest
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- cp $(PNGLIBCONF_H_PREBUILT) $@
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-.include <bsd.lib.mk>
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.gcc b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.gcc
deleted file mode 100644
index a977313..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.gcc
+++ /dev/null
@@ -1,87 +0,0 @@
-# makefile for libpng using gcc (generic, static library)
-# Copyright (C) 2008, 2014 Glenn Randers-Pehrson
-# Copyright (C) 2000, 2014, 2019 Cosmin Truta
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Location of the zlib library and include files
-ZLIBINC = ../zlib
-ZLIBLIB = ../zlib
-
-# Compiler, linker, lib and other tools
-CC = gcc
-LD = $(CC)
-AR_RC = ar rcs
-RANLIB = ranlib
-CP = cp
-RM_F = rm -f
-
-WARNMORE = -Wwrite-strings -Wpointer-arith -Wshadow \
- -Wmissing-declarations -Wtraditional -Wcast-align \
- -Wstrict-prototypes -Wmissing-prototypes # -Wconversion
-CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5
-CFLAGS = -W -Wall -O2 # $(WARNMORE) -g
-LDFLAGS = -L$(ZLIBLIB)
-LIBS = -lz -lm
-
-# File extensions
-EXEEXT =
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-# Variables
-OBJS = png.o pngerror.o pngget.o pngmem.o pngpread.o \
- pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \
- pngtrans.o pngwio.o pngwrite.o pngwtran.o pngwutil.o
-
-# Targets
-all: static
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-static: libpng.a pngtest$(EXEEXT)
-
-shared:
- @echo This is a generic makefile that cannot create shared libraries.
- @echo Please use a configuration that is specific to your platform.
- @false
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-test: pngtest$(EXEEXT)
- ./pngtest$(EXEEXT)
-
-pngtest$(EXEEXT): pngtest.o libpng.a
- $(LD) $(LDFLAGS) -o $@ pngtest.o libpng.a $(LIBS)
-
-clean:
- $(RM_F) *.o libpng.a pngtest$(EXEEXT) pngout.png pnglibconf.h
-
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.gcc-asan b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.gcc-asan
deleted file mode 100644
index aae55d6..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.gcc-asan
+++ /dev/null
@@ -1,87 +0,0 @@
-# makefile for libpng using gcc + address sanitizer (generic, static library)
-# Copyright (C) 2008, 2014 Glenn Randers-Pehrson
-# Copyright (C) 2000, 2014, 2019 Cosmin Truta
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Location of the zlib library and include files
-ZLIBINC = ../zlib
-ZLIBLIB = ../zlib
-
-# Compiler, linker, lib and other tools
-CC = gcc
-LD = $(CC)
-AR_RC = ar rcs
-RANLIB = ranlib
-CP = cp
-RM_F = rm -f
-
-WARNMORE = -Wwrite-strings -Wpointer-arith -Wshadow \
- -Wmissing-declarations -Wtraditional -Wcast-align \
- -Wstrict-prototypes -Wmissing-prototypes # -Wconversion
-CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5
-CFLAGS = -W -Wall -O0 -g -fsanitize=address
-LDFLAGS = -L$(ZLIBLIB) -g -fsanitize=address
-LIBS = -lz -lm
-
-# File extensions
-EXEEXT =
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-# Variables
-OBJS = png.o pngerror.o pngget.o pngmem.o pngpread.o \
- pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \
- pngtrans.o pngwio.o pngwrite.o pngwtran.o pngwutil.o
-
-# Targets
-all: static
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-static: libpng.a pngtest$(EXEEXT)
-
-shared:
- @echo This is a generic makefile that cannot create shared libraries.
- @echo Please use a configuration that is specific to your platform.
- @false
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-test: pngtest$(EXEEXT)
- ./pngtest$(EXEEXT)
-
-pngtest$(EXEEXT): pngtest.o libpng.a
- $(LD) $(LDFLAGS) -o $@ pngtest.o libpng.a $(LIBS)
-
-clean:
- $(RM_F) *.o libpng.a pngtest$(EXEEXT) pngout.png pnglibconf.h
-
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.hp64 b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.hp64
deleted file mode 100644
index 4421e78..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.hp64
+++ /dev/null
@@ -1,231 +0,0 @@
-# makefile for libpng, HPUX (10.20 and 11.00) using the ANSI/C product.
-# Copyright (C) 1999-2002, 2006, 2009, 2010-2014 Glenn Randers-Pehrson
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42
-# Contributed by Jim Rice and updated by Chris Schleicher, Hewlett Packard
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Where the zlib library and include files are located
-ZLIBLIB=/opt/zlib/lib
-ZLIBINC=/opt/zlib/include
-
-# Note that if you plan to build a libpng shared library, zlib must also
-# be a shared library, which zlib's configure does not do. After running
-# zlib's configure, edit the appropriate lines of makefile to read:
-# CFLAGS=-O1 -DHAVE_UNISTD -DUSE_MAP -fPIC \
-# LDSHARED=ld -b
-# SHAREDLIB=libz.sl
-
-# Library name:
-LIBNAME = libpng16
-PNGMAJ = 16
-
-# Shared library names:
-LIBSO=$(LIBNAME).sl
-LIBSOMAJ=$(LIBNAME).sl.$(PNGMAJ)
-LIBSOREL=$(LIBSOMAJ).$(RELEASE)
-OLDSO=libpng.sl
-
-# Utilities:
-AR_RC=ar rc
-CC=cc
-MKDIR_P=mkdir -p
-LN_SF=ln -sf
-RANLIB=ranlib
-CP=cp
-RM_F=/bin/rm -f
-
-CPPFLAGS=-I$(ZLIBINC) \
- -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DHAVE_UNISTD_H -DUSE_MMAP
-CFLAGS=-O -Ae -Wl,+vnocompatwarnings +DD64 +Z
-# Caution: be sure you have built zlib with the same CFLAGS.
-CCFLAGS=-O -Ae -Wl,+vnocompatwarnings +DD64 +Z
-
-LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
-
-# where make install puts libpng.a, libpng16.sl, and png.h
-prefix=/opt/libpng
-exec_prefix=$(prefix)
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-OBJSDLL = $(OBJS:.o=.pic.o)
-
-.SUFFIXES: .c .o .pic.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-.c.pic.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) +z -o $@ $*.c
-
-all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo ccopts=\"-O -Ae -Wl,+vnocompatwarnings +DD64 +Z\"; \
- echo L_opts=\"-L$(LIBPATH)\"; \
- echo libs=\"-lpng16 -lz -lm\"; \
- cat scripts/libpng-config-body.in ) > libpng-config
- chmod +x libpng-config
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
-
-$(LIBSOMAJ): $(OBJSDLL)
- $(LD) -b +s \
- +h $(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)
-
-pngtest: pngtest.o libpng.a
- $(CC) -o pngtest $(CCFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
- ./pngtest
-
-install-headers: png.h pngconf.h pnglibconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@$(RM_F) $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(LIBSOREL)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
- chmod 755 $(DL)/$(LIBSOREL)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@$(RM_F) $(DM)/man3/libpng.3
- -@$(RM_F) $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@$(RM_F) $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@$(RM_F) $(DB)/libpng-config
- -@$(RM_F) $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- chmod 755 $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location. Use test-dd to test it
-# before then.
-
-test-dd:
- echo
- echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) $(CPPFLAGS) $(CCFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(DL) -L$(ZLIBLIB) \
- -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtestd pngtest.png
-
-test-installed:
- echo
- echo Testing installed dynamic shared library.
- $(CC) $(CPPFLAGS) $(CCFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(ZLIBLIB) \
- -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtesti pngtest.png
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
- libpng-config $(LIBSO) $(LIBSOMAJ)* \
- libpng.pc pnglibconf.h
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.hpgcc b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.hpgcc
deleted file mode 100644
index efef1f3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.hpgcc
+++ /dev/null
@@ -1,234 +0,0 @@
-# makefile for libpng on HP-UX using GCC with the HP ANSI/C linker.
-# Copyright (C) 2002, 2006-2008, 2010-2014 Glenn Randers-Pehrson
-# Copyright (C) 2001, Laurent faillie
-# Copyright (C) 1998, 1999 Greg Roelofs
-# Copyright (C) 1996, 1997 Andreas Dilger
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Library name:
-LIBNAME = libpng16
-PNGMAJ = 16
-
-# Shared library names:
-LIBSO=$(LIBNAME).sl
-LIBSOMAJ=$(LIBNAME).sl.$(PNGMAJ)
-LIBSOREL=$(LIBSOMAJ).$(RELEASE)
-OLDSO=libpng.sl
-
-# Utilities:
-CC=gcc
-LD=ld
-AR_RC=ar rc
-MKDIR_P=mkdir -p
-LN_SF=ln -sf
-RANLIB=ranlib
-CP=cp
-RM_F=/bin/rm -f
-
-# where "make install" puts libpng.a, $(OLDSO)*, png.h, pngconf.h
-# and pnglibconf.h
-prefix=/usr/local
-exec_prefix=$(prefix)
-
-# Where the zlib library and include files are located
-ZLIBLIB=/opt/zlib/lib
-ZLIBINC=/opt/zlib/include
-
-# Note that if you plan to build a libpng shared library, zlib must also
-# be a shared library, which zlib's configure does not do. After running
-# zlib's configure, edit the appropriate lines of makefile to read:
-# CFLAGS=-O1 -DHAVE_UNISTD -DUSE_MAP -fPIC \
-# LDSHARED=ld -b
-# SHAREDLIB=libz.sl
-
-ALIGN=
-# for i386:
-#ALIGN=-malign-loops=2 -malign-functions=2
-
-WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
- -Wmissing-declarations -Wtraditional -Wcast-align \
- -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
-
-# for pgcc version 2.95.1, -O3 is buggy; don't use it.
-
-CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
-CFLAGS=-W -Wall -O3 -funroll-loops $(ALIGN) # $(WARNMORE) -g
-#LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng16 -lz -lm
-LDFLAGS=-L. -L$(ZLIBLIB) -lpng16 -lz -lm
-
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-OBJSDLL = $(OBJS:.o=.pic.o)
-
-.SUFFIXES: .c .o .pic.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-.c.pic.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -fPIC -o $@ $*.c
-
-all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo libs=\"-lpng16 -lz -lm\"; \
- cat scripts/libpng-config-body.in ) > libpng-config
- chmod +x libpng-config
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
-
-$(LIBSOMAJ): $(OBJSDLL)
- $(LD) -b +s \
- +h $(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)
-
-pngtest: pngtest.o $(LIBSO)
- $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
- ./pngtest
-
-
-install-headers: png.h pngconf.h pnglibconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@$(RM_F) $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(LIBSOREL)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
- chmod 755 $(DL)/$(LIBSOREL)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@$(RM_F) $(DM)/man3/libpng.3
- -@$(RM_F) $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@$(RM_F) $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@$(RM_F) $(DB)/libpng-config
- -@$(RM_F) $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- chmod 755 $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location. Use test-dd to test it
-# before then.
-
-test-dd:
- echo
- echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(DL) -L$(ZLIBLIB) -Wl,-rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
- -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtestd pngtest.png
-
-test-installed:
- echo
- echo Testing installed dynamic shared library.
- $(CC) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
- -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtesti pngtest.png
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
- libpng-config $(LIBSO) $(LIBSOMAJ)* \
- libpng.pc pnglibconf.h
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.hpux b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.hpux
deleted file mode 100644
index 27b312a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.hpux
+++ /dev/null
@@ -1,229 +0,0 @@
-# makefile for libpng, HPUX (10.20 and 11.00) using the ANSI/C product.
-# Copyright (C) 1999-2002, 2006, 2010-2014 Glenn Randers-Pehrson
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42
-# Contributed by Jim Rice and updated by Chris Schleicher, Hewlett Packard
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Where the zlib library and include files are located
-ZLIBLIB=/opt/zlib/lib
-ZLIBINC=/opt/zlib/include
-
-# Note that if you plan to build a libpng shared library, zlib must also
-# be a shared library, which zlib's configure does not do. After running
-# zlib's configure, edit the appropriate lines of makefile to read:
-# CPPFLAGS=-DHAVE_UNISTD -DUSE_MAP
-# CFLAGS=-O1 -fPIC
-# LDSHARED=ld -b
-# SHAREDLIB=libz.sl
-
-# Library name:
-LIBNAME = libpng16
-PNGMAJ = 16
-
-# Shared library names:
-LIBSO=$(LIBNAME).sl
-LIBSOMAJ=$(LIBNAME).sl.$(PNGMAJ)
-LIBSOREL=$(LIBSOMAJ).$(RELEASE)
-OLDSO=libpng.sl
-
-# Utilities:
-AR_RC=ar rc
-CC=cc
-MKDIR_P=mkdir -p
-LN_SF=ln -sf
-RANLIB=ranlib
-RM_F=/bin/rm -f
-
-# where make install puts libpng.a, libpng16.sl, and png.h
-prefix=/opt/libpng
-exec_prefix=$(prefix)
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-CPPFLAGS=-I$(ZLIBINC)
-CFLAGS=-O -Ae +DA1.1 +DS2.0
-# Caution: be sure you have built zlib with the same CFLAGS.
-CCFLAGS=-O -Ae +DA1.1 +DS2.0
-LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-OBJSDLL = $(OBJS:.o=.pic.o)
-
-.SUFFIXES: .c .o .pic.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-.c.pic.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) +z -o $@ $*.c
-
-all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo ccopts=\"-O -Ae +DA1.1 +DS2.0\"; \
- echo L_opts=\"-L$(LIBPATH)\"; \
- echo libs=\"-lpng16 -lz -lm\"; \
- cat scripts/libpng-config-body.in ) > libpng-config
- chmod +x libpng-config
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
-
-$(LIBSOMAJ): $(OBJSDLL)
- $(LD) -b +s \
- +h $(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)
-
-pngtest: pngtest.o libpng.a
- $(CC) -o pngtest $(CCFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
- ./pngtest
-
-install-headers: png.h pngconf.h pnglibconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@$(RM_F) $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(LIBSOREL)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
- chmod 755 $(DL)/$(LIBSOREL)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@$(RM_F) $(DM)/man3/libpng.3
- -@$(RM_F) $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@$(RM_F) $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@$(RM_F) $(DB)/libpng-config
- -@$(RM_F) $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- chmod 755 $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location. Use test-dd to test it
-# before then.
-
-test-dd:
- echo
- echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) $(CPPFLAGS) $(CCFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(DL) -L$(ZLIBLIB) \
- -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtestd pngtest.png
-
-test-installed:
- echo
- echo Testing installed dynamic shared library.
- $(CC) $(CPPFLAGS) $(CCFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(ZLIBLIB) \
- -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtesti pngtest.png
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
- libpng-config $(LIBSO) $(LIBSOMAJ)* \
- libpng.pc pnglibconf.h
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.ibmc b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.ibmc
deleted file mode 100644
index 89b1196..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.ibmc
+++ /dev/null
@@ -1,90 +0,0 @@
-# Makefile for libpng (static)
-# IBM C version 3.x for Win32 and OS/2
-# Copyright (C) 2006, 2014 Glenn Randers-Pehrson
-# Copyright (C) 2000 Cosmin Truta
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-#
-# Notes:
-# Derived from makefile.std
-# All modules are compiled in C mode
-# Tested under Win32, expected to work under OS/2
-# Can be easily adapted for IBM VisualAge/C++ for AIX
-
-# Location of the zlib library and include files
-ZLIBINC = ../zlib
-ZLIBLIB = ../zlib
-
-# Compiler, linker, lib and other tools
-CC = icc
-LD = ilink
-AR = ilib
-CP = copy
-RM = del
-
-CPPFLAGS = -I$(ZLIBINC)
-CFLAGS = -Mc -O2 -W3
-LDFLAGS =
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-# File extensions
-O=.obj
-A=.lib
-E=.exe
-
-# Variables
-OBJS = png$(O) pngerror$(O) pngget$(O) pngmem$(O) pngpread$(O) \
- pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) pngset$(O) \
- pngtrans$(O) pngwio$(O) pngwrite$(O) pngwtran$(O) pngwutil$(O)
-
-LIBS = libpng$(A) $(ZLIBLIB)/zlib$(A)
-
-# Targets
-.c$(O):
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
-
-all: libpng$(A) pngtest$(E)
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng$(A): $(OBJS)
- $(AR) -out:$@ $(OBJS)
-
-test: pngtest$(E)
- pngtest$(E)
-
-pngtest: pngtest$(E)
-
-pngtest$(E): pngtest$(O) libpng$(A)
- $(LD) $(LDFLAGS) pngtest$(O) $(LIBS)
-
-clean:
- $(RM) *$(O)
- $(RM) libpng$(A)
- $(RM) pnglibconf.h
- $(RM) pngtest$(E)
- $(RM) pngout.png
-
-png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest$(O): png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.intel b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.intel
deleted file mode 100644
index 4187261..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.intel
+++ /dev/null
@@ -1,115 +0,0 @@
-# Makefile for libpng
-# Microsoft Visual C++ with Intel C/C++ Compiler 4.0 and later
-
-# Copyright (C) 2006, 2014 Glenn Randers-Pehrson
-# Copyright (C) 2000, Pawel Mrochen, based on makefile.msc which is
-# copyright 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-#
-# To use, do "nmake /f scripts\makefile.intel"
-#
-# ------------------- Intel C/C++ Compiler 4.0 and later -------------------
-
-# Where the zlib library and include files are located
-ZLIBLIB=..\zlib
-ZLIBINC=..\zlib
-
-# Target CPU
-CPU=6 # Pentium II
-#CPU=5 # Pentium
-
-# Calling convention
-CALLING=r # __fastcall
-#CALLING=z # __stdcall
-#CALLING=d # __cdecl
-
-# Uncomment next to put error messages in a file
-#ERRFILE=>>pngerrs
-
-# --------------------------------------------------------------------------
-
-CC=icl -c
-CPPFLAGS=-I$(ZLIBINC)
-CFLAGS=-O2 -G$(CPU)$(CALLING) -Qip -Qunroll4 -nologo
-LD=link
-LDFLAGS=/SUBSYSTEM:CONSOLE /NOLOGO
-CP=cp
-
-# Pre-built configuration
-# See scripts\pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts\pnglibconf.h.prebuilt
-
-O=.obj
-
-OBJS=png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O) \
-pngmem$(O) pngpread$(O) pngread$(O) pngerror$(O) pngwrite$(O) \
-pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O)
-
-all: test
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-libpng.lib: $(OBJS)
- if exist libpng.lib del libpng.lib
- lib /NOLOGO /OUT:libpng.lib $(OBJS)
-
-pngtest.exe: pngtest.obj libpng.lib
- $(LD) $(LDFLAGS) /OUT:pngtest.exe pngtest.obj libpng.lib $(ZLIBLIB)\zlib.lib
-
-pngtest$(O): png.h pngconf.h pnglibconf.h
- $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-test: pngtest.exe
- pngtest.exe
-
-
-# End of makefile for libpng
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.linux b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.linux
deleted file mode 100644
index f2d8bea..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.linux
+++ /dev/null
@@ -1,246 +0,0 @@
-# makefile for libpng.a and libpng16.so on Linux ELF with gcc
-# Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010-2014 Greg Roelofs and
-# Glenn Randers-Pehrson
-# Copyright (C) 1996, 1997 Andreas Dilger
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Library name:
-LIBNAME = libpng16
-PNGMAJ = 16
-RELEASE = 37
-
-# Shared library names:
-LIBSO=$(LIBNAME).so
-LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOREL=$(LIBSOMAJ).$(RELEASE)
-OLDSO=libpng.so
-
-# Utilities:
-AR_RC=ar rc
-CC=gcc
-MKDIR_P=mkdir -p
-LN_SF=ln -sf
-RANLIB=ranlib
-CP=cp
-RM_F=/bin/rm -f
-
-# where "make install" puts libpng16.a, libpng16.so*,
-# libpng16/png.h, libpng16/pngconf.h, and libpng16/pnglibconf.h
-# Prefix must be a full pathname.
-prefix=/usr/local
-exec_prefix=$(prefix)
-
-# Where the zlib library and include files are located.
-#ZLIBLIB=/usr/local/lib
-#ZLIBINC=/usr/local/include
-ZLIBLIB=../zlib
-ZLIBINC=../zlib
-
-ALIGN=
-# for i386:
-#ALIGN=-malign-loops=2 -malign-functions=2
-
-WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
- -Wmissing-declarations -Wtraditional -Wcast-align \
- -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
-
-# for pgcc version 2.95.1, -O3 is buggy; don't use it.
-
-CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
-CFLAGS=-W -Wall -O3 -funroll-loops $(ALIGN) # $(WARNMORE) -g
-
-LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng16 -lz -lm
-LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm
-
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-OBJSDLL = $(OBJS:.o=.pic.o)
-
-.SUFFIXES: .c .o .pic.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-.c.pic.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -fPIC -o $@ $*.c
-
-all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo L_opts=\"-L$(LIBPATH)\"; \
- echo R_opts=\"-Wl,-rpath,$(LIBPATH)\"; \
- echo libs=\"-lpng16 -lz -lm\"; \
- cat scripts/libpng-config-body.in ) > libpng-config
- chmod +x libpng-config
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
-
-$(LIBSOMAJ): $(OBJSDLL)
- $(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)
-
-pngtest: pngtest.o $(LIBSO)
- $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-pngtest-static: pngtest.o libpng.a
- $(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
-
-test: pngtest pngtest-static
- @echo ""
- @echo " Running pngtest dynamically linked with $(LIBSO):"
- @echo ""
- ./pngtest
- @echo ""
- @echo " Running pngtest statically linked with libpng.a:"
- @echo ""
- ./pngtest-static
-
-install-headers: png.h pngconf.h pnglibconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@$(RM_F) $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(LIBSOREL)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
- chmod 755 $(DL)/$(LIBSOREL)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
-
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@$(RM_F) $(DM)/man3/libpng.3
- -@$(RM_F) $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@$(RM_F) $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@$(RM_F) $(DB)/libpng-config
- -@$(RM_F) $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- chmod 755 $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location. Use test-dd to test it
-# before then.
-
-test-dd:
- echo
- echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(DL) -L$(ZLIBLIB) -Wl, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
- -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtestd pngtest.png
-
-test-installed:
- $(CC) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
- -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtesti pngtest.png
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
- $(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
- libpng.pc pnglibconf.h
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.linux-opt b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.linux-opt
deleted file mode 100644
index 327151f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.linux-opt
+++ /dev/null
@@ -1,265 +0,0 @@
-# makefile for libpng.a and libpng16.so on Linux ELF with gcc
-# Copyright (C) 1998,1999,2002,2006,2008,2010-2014,2017 Greg Roelofs and
-# Glenn Randers-Pehrson
-# Copyright (C) 1996,1997 Andreas Dilger
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Library name:
-LIBNAME = libpng16
-PNGMAJ = 16
-RELEASE = 37
-
-# Shared library names:
-LIBSO=$(LIBNAME).so
-LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOREL=$(LIBSOMAJ).$(RELEASE)
-OLDSO=libpng.so
-
-# Utilities:
-AR_RC=ar rc
-CC=gcc
-MKDIR_P=mkdir -p
-LN_SF=ln -sf
-RANLIB=ranlib
-CP=cp
-RM_F=/bin/rm -f
-
-# where "make install" puts libpng16.a, libpng16.so*,
-# libpng16/png.h, libpng16/pngconf.h, and libpng16/pnglibconf.h
-# Prefix must be a full pathname.
-prefix=/usr/local
-exec_prefix=$(prefix)
-
-# Where the zlib library and include files are located.
-#ZLIBLIB=/usr/local/lib
-#ZLIBINC=/usr/local/include
-ZLIBLIB=../zlib
-ZLIBINC=../zlib
-
-ALIGN=
-# for i386:
-#ALIGN=-malign-loops=2 -malign-functions=2
-
-#WARNMORE=-Wwrite-strings -Wpointer-arith \
-# -Wmissing-declarations -Wtraditional -Wcast-align \
-# -Wstrict-prototypes -Wmissing-prototypes
-
-# for pgcc version 2.95.1, -O3 is buggy; don't use it.
-
-CPPFLAGS=-I$(ZLIBINC)
-CPPFLAGS += -DPNG_ARM_NEON
-CPPFLAGS += -DPNG_MIPS_MSA
-CPPFLAGS += -DPNG_INTEL_SSE
-CPPFLAGS += -DPNG_POWERPC_VSX
-CPPFLAGS+=-ansi -pedantic -Wextra -Wall -Wshadow -Wno-sign-conversion
-CPPFLAGS+=-W -Wall -Wconversion $(ALIGN)
-# CPPFLAGS+=$(WARNMORE)
-CFLAGS= -O3 -funroll-loops
-
-LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng16 -lz -lm
-LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm
-
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o \
- arm/arm_init.o arm/filter_neon_intrinsics.o \
- mips/mips_init.o mips/filter_msa_intrinsics.o \
- intel/intel_init.o intel/filter_sse2_intrinsics.o\
- powerpc/powerpc_init.o powerpc/filter_vsx_intrinsics.o
-
-OBJSDLL = $(OBJS:.o=.pic.o)
-
-.SUFFIXES: .c .o .pic.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-.c.pic.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -fPIC -o $@ $*.c
-
-all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo L_opts=\"-L$(LIBPATH)\"; \
- echo R_opts=\"-Wl,-rpath,$(LIBPATH)\"; \
- echo libs=\"-lpng16 -lz -lm\"; \
- cat scripts/libpng-config-body.in ) > libpng-config
- chmod +x libpng-config
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
-
-$(LIBSOMAJ): $(OBJSDLL)
- $(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)
-
-pngtest: pngtest.o $(LIBSO)
- $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-pngtest-static: pngtest.o libpng.a
- $(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
-
-test: pngtest pngtest-static
- @echo ""
- @echo " Running pngtest dynamically linked with $(LIBSO):"
- @echo ""
- ./pngtest
- @echo ""
- @echo " Running pngtest statically linked with libpng.a:"
- @echo ""
- ./pngtest-static
-
-install-headers: png.h pngconf.h pnglibconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@$(RM_F) $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(LIBSOREL)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
- chmod 755 $(DL)/$(LIBSOREL)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
-
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@$(RM_F) $(DM)/man3/libpng.3
- -@$(RM_F) $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@$(RM_F) $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@$(RM_F) $(DB)/libpng-config
- -@$(RM_F) $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- chmod 755 $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location. Use test-dd to test it
-# before then.
-
-test-dd:
- echo
- echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(DL) -L$(ZLIBLIB) -Wl, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
- -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtestd pngtest.png
-
-test-installed:
- $(CC) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
- -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtesti pngtest.png
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
- $(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
- libpng.pc pnglibconf.h
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-arm/arm_init.o arm/arm_init.o: pngpriv.h
-arm/filter_neon_intrinsics.o arm/filter_neon_intrinsics.pic.o: pngpriv.h
-mips/mips_init.o mips/mips_init.pic.o: pngpriv.h
-mips/filter_msa_intrinsics.o mips/filter_msa_intrinsics.pic.: pngpriv.h
-intel/intel_init.o intel/intel_init.pic.: pngpriv.h
-intel/filter_sse2_intrinsics.o intel/filter_sse2_intrinsics.pic.: pngpriv.h
-powerpc/powerpc_init.o powerpc/powerpc_init.pic.: pngpriv.h
-powerpc/filter_vsx_intrinsics.o powerpc/filter_vsx_intrinsics.pic.: pngpriv.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.mips b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.mips
deleted file mode 100644
index 0357ae8..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.mips
+++ /dev/null
@@ -1,103 +0,0 @@
-# makefile for libpng
-# Copyright (C) 1998-2014 Glenn Randers-Pehrson
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# where make install puts libpng.a and png.h
-prefix=/usr/local
-INCPATH=$(prefix)/include
-LIBPATH=$(prefix)/lib
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-CC=cc
-CPPFLAGS=-I../zlib -DSYSV -Dmips
-CFLAGS=-O -systype sysv -w
-#CFLAGS=-O
-LDFLAGS=-L. -L../zlib/ -lpng -lz -lm
-
-#RANLIB=ranlib
-RANLIB=echo
-
-CP=cp
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-all: libpng.a pngtest
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng.a: $(OBJS)
- ar rc $@ $(OBJS)
- $(RANLIB) $@
-
-pngtest: pngtest.o libpng.a
- $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
- ./pngtest
-
-install: libpng.a
- -@mkdir $(DESTDIR)$(INCPATH)
- -@mkdir $(DESTDIR)$(INCPATH)/libpng
- -@mkdir $(DESTDIR)$(LIBPATH)
- -@rm -f $(DESTDIR)$(INCPATH)/png.h
- -@rm -f $(DESTDIR)$(INCPATH)/pngconf.h
- -@rm -f $(DESTDIR)$(INCPATH)/pnglibconf.h
- cp png.h $(DESTDIR)$(INCPATH)/libpng
- cp pngconf.h $(DESTDIR)$(INCPATH)/libpng
- cp pnglibconf.h $(DESTDIR)$(INCPATH)/libpng
- chmod 644 $(DESTDIR)$(INCPATH)/libpng/png.h
- chmod 644 $(DESTDIR)$(INCPATH)/libpng/pngconf.h
- chmod 644 $(DESTDIR)$(INCPATH)/libpng/pnglibconf.h
- (cd $(DESTDIR)$(INCPATH); ln -f -s libpng/* .)
- cp libpng.a $(DESTDIR)$(LIBPATH)
- chmod 644 $(DESTDIR)$(LIBPATH)/libpng.a
-
-clean:
- rm -f *.o libpng.a pngtest pngout.png pnglibconf.h
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.msys b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.msys
deleted file mode 100644
index 6b9daf8..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.msys
+++ /dev/null
@@ -1,202 +0,0 @@
-# makefile for libpng using MSYS/gcc (shared, static library)
-# Copyright (C) 2019 Cosmin Truta
-# Copyright (C) 2012 Glenn Randers-Pehrson and Christopher M. Wheeler
-#
-# Portions taken from makefile.linux and makefile.gcc:
-# Copyright (C) 2000 Cosmin Truta
-# Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010-2014 Greg Roelofs and
-# Glenn Randers-Pehrson
-# Copyright (C) 1996, 1997 Andreas Dilger
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-# # # # # # # # # # # # # # # # #
-prefix=/usr/local
-exec_prefix=$(prefix)
-
-# Library name:
-LIBNAME = libpng16
-PNGMAJ = 16
-RELEASE = 37
-
-# Shared library names:
-LIBSO=$(LIBNAME).dll
-LIBSOMAJ=$(LIBNAME).dll.$(PNGMAJ)
-LIBSOREL=$(PNGMAJ).$(RELEASE)
-OLDSO=libpng.dll
-
-# Where the zlib library and include files are located.
-#ZLIBLIB=../zlib
-#ZLIBINC=../zlib
-ZLIBLIB=/usr/local/lib
-ZLIBINC=/usr/local/include
-
-# Compiler, linker, lib and other tools
-CC = gcc
-LD = $(CC)
-AR_RC = ar rcs
-RANLIB = ranlib
-CP = cp
-RM_F = rm -rf
-MKDIR_P=mkdir -p
-LN_SF=ln -sf
-
-#ARCH = -march=pentium3
-#ARCH = -march=i686
-ARCH =
-CPPFLAGS = # -DPNG_DEBUG=5
-CFLAGS = -W -Wall -O2 $(ARCH) # -g
-LDFLAGS =
-LIBS = -lz -lm
-
-# File extensions
-EXEEXT=.exe
-
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-# Variables
-OBJS = png.o pngerror.o pngget.o pngmem.o pngpread.o \
- pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \
- pngtrans.o pngwio.o pngwrite.o pngwtran.o pngwutil.o
-
-# Targets
-all: static shared
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
-
-static: libpng.a pngtest$(EXEEXT)
-
-shared: $(LIBSOMAJ)
- $(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSO)
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
-
-$(LIBSOMAJ):
- $(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOMAJ)
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-install-headers: png.h pngconf.h pnglibconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@$(RM_F) $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo L_opts=\"-L$(LIBPATH)\"; \
- echo R_opts=\"-Wl,-rpath,$(LIBPATH)\"; \
- echo libs=\"-lpng16 -lz -lm\"; \
- cat scripts/libpng-config-body.in ) > libpng-config
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSO) $(DL)/$(LIBSOREL)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
-
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@$(RM_F) $(DM)/man3/libpng.3
- -@$(RM_F) $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@$(RM_F) $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@$(RM_F) $(DB)/libpng-config
- -@$(RM_F) $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-test: pngtest$(EXEEXT)
- ./pngtest$(EXEEXT)
-
-pngtest$(EXEEXT): pngtest.o libpng.a
- $(LD) $(LDFLAGS) -o $@ pngtest.o libpng.a $(LIBS)
-
-clean:
- $(RM_F) *.o libpng.a pngtest$(EXEEXT) pngout.png pnglibconf.h $(LIBSO) \
- $(LIBSOMAJ) libpng-config
-
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.netbsd b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.netbsd
deleted file mode 100644
index 9a6b046..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.netbsd
+++ /dev/null
@@ -1,55 +0,0 @@
-# makefile for libpng for NetBSD for the standard
-# make obj && make depend && make && make test
-# make includes && make install
-# Copyright (C) 2002 Patrick R.L. Welche
-# Copyright (C) 2007-2009, 2014 Glenn Randers-Pehrson
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-LOCALBASE?=/usr/local
-LIBDIR= ${LOCALBASE}/lib
-MANDIR= ${LOCALBASE}/man
-INCSDIR=${LOCALBASE}/include
-
-SHLIB_MAJOR= 16
-SHLIB_MINOR= 1.6.37
-
-LIB= png
-SRCS= png.c pngerror.c pngget.c pngmem.c pngpread.c \
- pngread.c pngrio.c pngrtran.c pngrutil.c pngset.c pngtrans.c \
- pngwio.c pngwrite.c pngwtran.c pngwutil.c
-INCS= png.h pngconf.h pnglibconf.h
-MAN= libpng.3 libpngpf.3 png.5
-
-CPPFLAGS+=-I${.CURDIR}
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT= scripts/pnglibconf.h.prebuilt
-
-# We should be able to do something like this instead of the manual
-# uncommenting, but it core dumps for me at the moment:
-# .if ${MACHINE_ARCH} == "i386"
-# MKLINT= no
-# .endif
-
-CLEANFILES+=pngtest.o pngtest pnglibconf.h
-
-.c.o:
- ${CC} -c ${CPPFLAGS} ${CFLAGS} -o $@ $<
-
-pnglibconf.h: ${PNGLIBCONF_H_PREBUILT}
- cp ${PNGLIBCONF_H_PREBUILT} $@
-
-pngtest.o: pngtest.c
- ${CC} -c ${CPPFLAGS} ${CFLAGS} ${.ALLSRC} -o ${.TARGET}
-
-pngtest: pngtest.o libpng.a
- ${CC} ${LDFLAGS} ${.ALLSRC} -o ${.TARGET} -lz -lm
-
-test: pngtest
- cd ${.CURDIR} && ${.OBJDIR}/pngtest
-
-.include <bsd.lib.mk>
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.openbsd b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.openbsd
deleted file mode 100644
index ad5ffb3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.openbsd
+++ /dev/null
@@ -1,86 +0,0 @@
-# makefile for libpng
-# Copyright (C) 2007-2009, 2014 Glenn Randers-Pehrson
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-PREFIX?= /usr/local
-LIBDIR= ${PREFIX}/lib
-MANDIR= ${PREFIX}/man/cat
-
-SHLIB_MAJOR= 16
-SHLIB_MINOR= 1.6.37
-
-LIB= png
-SRCS= png.c pngerror.c pngget.c pngmem.c pngpread.c \
- pngread.c pngrio.c pngrtran.c pngrutil.c pngset.c pngtrans.c \
- pngwio.c pngwrite.c pngwtran.c pngwutil.c
-HDRS= png.h pngconf.h pnglibconf.h
-MAN= libpng.3 libpngpf.3 png.5
-DOCS= ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO \
- libpng-manual.txt
-
-CFLAGS+= -W -Wall
-CPPFLAGS+= -I${.CURDIR}
-
-NOPROFILE= Yes
-
-CLEANFILES+= pngtest.o pngtest pnglibconf.h
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT= scripts/pnglibconf.h.prebuilt
-
-.c.o:
- ${CC} -c ${CPPFLAGS} ${CFLAGS} -o $@ $<
-
-pnglibconf.h: ${PNGLIBCONF_H_PREBUILT}
- cp ${PNGLIBCONF_H_PREBUILT} $@
-
-pngtest.o: pngtest.c
- ${CC} -c ${CPPFLAGS} ${CFLAGS} ${.ALLSRC} -o ${.TARGET}
-
-pngtest: pngtest.o
- ${CC} ${LDFLAGS} ${.ALLSRC} -o ${.TARGET} -L${.OBJDIR} -lpng -lz -lm
-
-test: pngtest
- cd ${.OBJDIR} && env \
- LD_LIBRARY_PATH="${.OBJDIR}" ${.OBJDIR}/pngtest
-
-beforeinstall:
- if [ ! -d ${DESTDIR}${PREFIX}/include/libpng ]; then \
- ${INSTALL} -d -o root -g wheel ${DESTDIR}${PREFIX}/include; \
- fi
- if [ ! -d ${DESTDIR}${LIBDIR} ]; then \
- ${INSTALL} -d -o root -g wheel ${DESTDIR}${LIBDIR}; \
- fi
- if [ ! -d ${DESTDIR}${LIBDIR}/debug ]; then \
- ${INSTALL} -d -o root -g wheel ${DESTDIR}${LIBDIR}/debug; \
- fi
- if [ ! -d ${DESTDIR}${MANDIR}3 ]; then \
- ${INSTALL} -d -o root -g wheel ${DESTDIR}${MANDIR}3; \
- fi
- if [ ! -d ${DESTDIR}${MANDIR}5 ]; then \
- ${INSTALL} -d -o root -g wheel ${DESTDIR}${MANDIR}5; \
- fi
- if [ ! -d ${DESTDIR}${PREFIX}/share/doc/png ]; then \
- ${INSTALL} -d -o root -g wheel ${DESTDIR}${PREFIX}/share/doc/png; \
- fi
-
-afterinstall:
- @rm -f ${DESTDIR}${LIBDIR}/libpng_pic.a
- @rm -f ${DESTDIR}${LIBDIR}/debug/libpng.a
- @rm -f ${DESTDIR}${PREFIX}/include/png.h
- @rm -f ${DESTDIR}${PREFIX}/include/pngconf.h
- @rm -f ${DESTDIR}${PREFIX}/include/pnglibconf.h
- @rmdir ${DESTDIR}${LIBDIR}/debug 2>/dev/null || true
- ${INSTALL} ${INSTALL_COPY} -o ${SHAREOWN} -g ${SHAREGRP} \
- -m ${NONBINMODE} ${HDRS} ${DESTDIR}${PREFIX}/include
- ${INSTALL} ${INSTALL_COPY} -o ${SHAREOWN} -g ${SHAREGRP} \
- -m ${NONBINMODE} ${HDRS} ${DESTDIR}${PREFIX}/include
- ${INSTALL} ${INSTALL_COPY} -o ${SHAREOWN} -g ${SHAREGRP} \
- -m ${NONBINMODE} ${DOCS} ${DESTDIR}${PREFIX}/share/doc/png
-
-.include <bsd.lib.mk>
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.sco b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.sco
deleted file mode 100644
index 01d7eaa..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.sco
+++ /dev/null
@@ -1,226 +0,0 @@
-# makefile for SCO OSr5 ELF and Unixware 7 with Native cc
-# Contributed by Mike Hopkirk (hops at sco.com) modified from Makefile.lnx
-# force ELF build dynamic linking, SONAME setting in lib and RPATH in app
-# Copyright (C) 2002, 2006, 2010-2014 Glenn Randers-Pehrson
-# Copyright (C) 1998 Greg Roelofs
-# Copyright (C) 1996, 1997 Andreas Dilger
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Library name:
-LIBNAME = libpng16
-PNGMAJ = 16
-
-# Shared library names:
-LIBSO=$(LIBNAME).so
-LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOREL=$(LIBSOMAJ).$(RELEASE)
-OLDSO=libpng.so
-
-# Utilities:
-CC=cc
-AR_RC=ar rc
-MKDIR_P=mkdir
-LN_SF=ln -f -s
-RANLIB=echo
-CP=cp
-RM_F=/bin/rm -f
-
-# where make install puts libpng.a, $(OLDSO)*, and png.h
-prefix=/usr/local
-exec_prefix=$(prefix)
-
-# Where the zlib library and include files are located
-#ZLIBLIB=/usr/local/lib
-#ZLIBINC=/usr/local/include
-ZLIBLIB=../zlib
-ZLIBINC=../zlib
-
-CPPFLAGS=-I$(ZLIBINC)
-CFLAGS= -dy -belf -O3
-LDFLAGS=-L. -L$(ZLIBLIB) -lpng16 -lz -lm
-
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-OBJSDLL = $(OBJS:.o=.pic.o)
-
-.SUFFIXES: .c .o .pic.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-.c.pic.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -KPIC -o $@ $*.c
-
-all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo ccopts=\"-belf\"; \
- echo L_opts=\"-L$(LIBPATH)\"; \
- echo libs=\"-lpng16 -lz -lm\"; \
- cat scripts/libpng-config-body.in ) > libpng-config
- chmod +x libpng-config
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
-
-$(LIBSOMAJ): $(OBJSDLL)
- $(CC) -G -Wl,-h,$(LIBSOMAJ) -o $(LIBSOMAJ) \
- $(OBJSDLL)
-
-pngtest: pngtest.o $(LIBSO)
- LD_RUN_PATH=.:$(ZLIBLIB) $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
- ./pngtest
-
-install-headers: png.h pngconf.h pnglibconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- -@$(RM_F) $(DI)/png.h
- -@$(RM_F) $(DI)/pngconf.h
- -@$(RM_F) $(DI)/pnglibconf.h
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@$(RM_F) $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(LIBSOREL)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
- chmod 755 $(DL)/$(LIBSOREL)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@$(RM_F) $(DM)/man3/libpng.3
- -@$(RM_F) $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@$(RM_F) $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@$(RM_F) $(DB)/libpng-config
- -@$(RM_F) $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- chmod 755 $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location. Use test-dd to test it
-# before then.
-
-test-dd:
- echo
- echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(DL) -L$(ZLIBLIB) \
- -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtestd pngtest.png
-
-test-installed:
- $(CC) $(CPPFLAGS) $(CFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(ZLIBLIB) \
- -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtesti pngtest.png
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
- $(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
- pnglibconf.h libpng.pc
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.sggcc b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.sggcc
deleted file mode 100644
index 82efe7a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.sggcc
+++ /dev/null
@@ -1,236 +0,0 @@
-# makefile for libpng.a and libpng16.so, SGI IRIX with 'cc'
-# Copyright (C) 2001-2002, 2006, 2010-2014 Glenn Randers-Pehrson
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Library name:
-LIBNAME=libpng16
-PNGMAJ = 16
-
-# Shared library names:
-LIBSO=$(LIBNAME).so
-LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOREL=$(LIBSOMAJ).$(RELEASE)
-OLDSO=libpng.so
-
-# Utilities:
-AR_RC=ar rc
-CC=gcc
-MKDIR_P=mkdir -p
-LN_SF=ln -sf
-RANLIB=echo
-CP=cp
-RM_F=/bin/rm -f
-
-# Where make install puts libpng.a, libpng16.so, and libpng16/png.h
-# Prefix must be a full pathname.
-
-prefix=/usr/local
-exec_prefix=$(prefix)
-
-# Where the zlib library and include files are located
-#ZLIBLIB=/usr/local/lib32
-#ZLIBINC=/usr/local/include
-#ZLIBLIB=/usr/local/lib
-#ZLIBINC=/usr/local/include
-ZLIBLIB=../zlib
-ZLIBINC=../zlib
-
-# ABI can be blank to use default for your system, -32, -o32, -n32, or -64
-# See "man abi". zlib must be built with the same ABI.
-ABI=
-
-WARNMORE=
-CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
-CFLAGS=$(ABI) -O $(WARNMORE) -fPIC -mabi=n32 # -g
-LDFLAGS=$(ABI) -L. -L$(ZLIBLIB) -lpng -lz -lm
-LDSHARED=cc $(ABI) -shared -soname $(LIBSOMAJ) \
- -set_version sgi$(PNGMAJ).0
-# See "man dso" for info about shared objects
-
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-#LIBPATH=$(exec_prefix)/lib32
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-all: libpng.a pngtest shared libpng.pc libpng-config
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-shared: $(LIBSOMAJ)
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo ccopts=\"$(ABI)\"; \
- echo cppflags=\"\"; \
- echo ldopts=\"$(ABI)\"; \
- echo L_opts=\"-L$(LIBPATH)\"; \
- echo libdir=\"$(LIBPATH)\"; \
- echo libs=\"-lpng16 -lz -lm\"; \
- cat scripts/libpng-config-body.in ) > libpng-config
- chmod +x libpng-config
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
-
-$(LIBSOMAJ): $(OBJS)
- $(LDSHARED) -o $@ $(OBJS)
- $(RM_F) $(LIBSO) $(LIBSOMAJ)
-
-pngtest: pngtest.o libpng.a
- $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
- echo
- echo Testing local static library.
- ./pngtest
-
-install-headers: png.h pngconf.h pnglibconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@$(RM_F) $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(LIBSOREL)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
- chmod 755 $(DL)/$(LIBSOREL)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@$(RM_F) $(DM)/man3/libpng.3
- -@$(RM_F) $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@$(RM_F) $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@$(RM_F) $(DB)/libpng-config
- -@$(RM_F) $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- chmod 755 $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location. Use test-dd to test it
-# before then.
-
-test-dd:
- echo
- echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(DL) -L$(ZLIBLIB) \
- -rpath $(ZLIBLIB):$(DL) \
- -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtestd pngtest.png
-
-test-installed:
- echo
- echo Testing installed dynamic shared library.
- $(CC) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(ZLIBLIB) \
- -rpath $(ZLIBLIB):`$(BINPATH)/$(LIBNAME)-config --libdir` \
- -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtesti pngtest.png
-
-clean:
- $(RM_F) libpng.a pngtest pngtesti pngout.png libpng.pc \
- so_locations libpng-config $(LIBSO) $(LIBSOMAJ)* pnglibconf.h
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.sgi b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.sgi
deleted file mode 100644
index 5d9c23f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.sgi
+++ /dev/null
@@ -1,237 +0,0 @@
-# makefile for libpng.a and libpng16.so, SGI IRIX with 'cc'
-# Copyright (C) 2001-2002, 2006, 2007, 2010-2014 Glenn Randers-Pehrson
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Library name:
-LIBNAME=libpng16
-PNGMAJ = 16
-
-# Shared library names:
-LIBSO=$(LIBNAME).so
-LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOREL=$(LIBSOMAJ).$(RELEASE)
-OLDSO=libpng.so
-
-# Utilities:
-AR_RC=ar rc
-CC=cc
-MKDIR_P=mkdir -p
-LN_SF=ln -sf
-RANLIB=echo
-CP=cp
-RM_F=/bin/rm -f
-
-# Where make install puts libpng.a, libpng16.so, and libpng16/png.h
-# Prefix must be a full pathname.
-
-prefix=/usr/local
-exec_prefix=$(prefix)
-
-# Where the zlib library and include files are located
-#ZLIBLIB=/usr/local/lib32
-#ZLIBINC=/usr/local/include
-#ZLIBLIB=/usr/local/lib
-#ZLIBINC=/usr/local/include
-ZLIBLIB=../zlib
-ZLIBINC=../zlib
-
-# ABI can be blank to use default for your system, -32, -o32, -n32, or -64
-# See "man abi". zlib must be built with the same ABI.
-ABI=
-
-WARNMORE=-fullwarn
-# Note: -KPIC is the default anyhow
-CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
-#CFLAGS= $(ABI) -O $(WARNMORE) -KPIC # -g
-CFLAGS=$(ABI) -O $(WARNMORE)
-LDFLAGS_A=$(ABI) -L. -L$(ZLIBLIB) -lpng16 -lz -lm
-LDFLAGS=$(ABI) -L. -L$(ZLIBLIB) -lpng -lz -lm
-LDSHARED=cc $(ABI) -shared -soname $(LIBSOMAJ) \
- -set_version sgi$(PNGMAJ).0
-# See "man dso" for info about shared objects
-
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-#LIBPATH=$(exec_prefix)/lib32
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-all: libpng.a pngtest shared libpng.pc libpng-config
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo ccopts=\"$(ABI)\"; \
- echo ldopts=\"$(ABI)\"; \
- echo L_opts=\"-L$(LIBPATH)\"; \
- echo libdir=\"$(LIBPATH)\"; \
- echo libs=\"-lpng16 -lz -lm\"; \
- cat scripts/libpng-config-body.in ) > libpng-config
- chmod +x libpng-config
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
-
-$(LIBSOMAJ): $(OBJS)
- $(LDSHARED) -o $@ $(OBJS)
- $(RM_F) $(LIBSO) $(LIBSOMAJ)
-
-pngtest: pngtest.o libpng.a
- $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
- echo
- echo Testing local static library.
- ./pngtest
-
-install-headers: png.h pngconf.h pnglibconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@$(RM_F) $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(LIBSOREL)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
- chmod 755 $(DL)/$(LIBSOREL)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@$(RM_F) $(DM)/man3/libpng.3
- -@$(RM_F) $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@$(RM_F) $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@$(RM_F) $(DB)/libpng-config
- -@$(RM_F) $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- chmod 755 $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location. Use test-dd to test it
-# before then.
-
-test-dd:
- echo
- echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(DL) -L$(ZLIBLIB) \
- -rpath $(ZLIBLIB):$(DL) \
- -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtestd pngtest.png
-
-test-installed:
- echo
- echo Testing installed dynamic shared library.
- $(CC) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -L$(ZLIBLIB) \
- -rpath $(ZLIBLIB):`$(BINPATH)/$(LIBNAME)-config --libdir` \
- -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
- ./pngtesti pngtest.png
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngtesti pngout.png libpng.pc libpng-config \
- $(LIBSO) $(LIBSOMAJ)* \
- so_locations pnglibconf.h
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.so9 b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.so9
deleted file mode 100644
index 93166f3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.so9
+++ /dev/null
@@ -1,247 +0,0 @@
-# makefile for libpng on Solaris 9 (beta) with Forte cc
-# Updated by Chad Schrock for Solaris 9
-# Contributed by William L. Sebok, based on makefile.linux
-# Copyright (C) 2002, 2006, 2008, 2010-2014 Glenn Randers-Pehrson
-# Copyright (C) 1998-2001 Greg Roelofs
-# Copyright (C) 1996-1997 Andreas Dilger
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Library name:
-PNGMAJ = 16
-LIBNAME = libpng16
-
-# Shared library names:
-LIBSO=$(LIBNAME).so
-LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOREL=$(LIBSOMAJ).$(RELEASE)
-OLDSO=libpng.so
-
-# Utilities:
-# gcc 2.95 doesn't work.
-CC=cc
-AR_RC=ar rc
-MKDIR_P=mkdir -p
-LN_SF=ln -f -s
-RANLIB=echo
-CP=cp
-RM_F=/bin/rm -f
-
-# Where make install puts libpng.a, $(OLDSO)*, and png.h
-prefix=/usr/local
-exec_prefix=$(prefix)
-
-# Where the zlib library and include files are located
-# Changing these to ../zlib poses a security risk. If you want
-# to have zlib in an adjacent directory, specify the full path instead of "..".
-#ZLIBLIB=../zlib
-#ZLIBINC=../zlib
-#ZLIBLIB=/usr/local/lib
-#ZLIBINC=/usr/local/include
-#Use the preinstalled zlib that comes with Solaris 9:
-ZLIBLIB=/usr/lib
-ZLIBINC=/usr/include
-
-#WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
- -Wmissing-declarations -Wtraditional -Wcast-align \
- -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
-CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
-#CFLAGS=-W -Wall -O3 $(WARNMORE) -g
-CFLAGS=-O3
-LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng16 -lz -lm
-
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-OBJSDLL = $(OBJS:.o=.pic.o)
-
-.SUFFIXES: .c .o .pic.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-.c.pic.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -KPIC -o $@ $*.c
-
-all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo L_opts=\"-L$(LIBPATH)\"; \
- echo R_opts=\"-R$(LIBPATH)\"; \
- echo libs=\"-lpng16 -lz -lm\"; \
- cat scripts/libpng-config-body.in ) > libpng-config
- chmod +x libpng-config
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
-
-$(LIBSOMAJ): $(OBJSDLL)
- @case "`type ld`" in *ucb*) \
- echo; \
- echo '## WARNING:'; \
- echo '## The commands "CC" and "LD" must NOT refer to /usr/ucb/cc'; \
- echo '## and /usr/ucb/ld. If they do, you need to adjust your PATH'; \
- echo '## environment variable to put /usr/ccs/bin ahead of /usr/ucb.'; \
- echo '## The environment variable LD_LIBRARY_PATH should not be set'; \
- echo '## at all. If it is, things are likely to break because of'; \
- echo '## the libucb dependency that is created.'; \
- echo; \
- ;; \
- esac
- $(LD) -G -h $(LIBSOMAJ) \
- -o $(LIBSOMAJ) $(OBJSDLL)
-
-pngtest: pngtest.o $(LIBSO)
- $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
- ./pngtest
-
-install-headers: png.h pngconf.h pnglibconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@$(RM_F) $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(LIBSOREL)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
- chmod 755 $(DL)/$(LIBSOREL)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@$(RM_F) $(DM)/man3/libpng.3
- -@$(RM_F) $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@$(RM_F) $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@$(RM_F) $(DB)/libpng-config
- -@$(RM_F) $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- chmod 755 $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location. Use test-dd to test it
-# before then.
-
-test-dd:
- echo
- echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags` \
- -L$(DL) -L$(ZLIBLIB) -R$(ZLIBLIB) -R$(DL)
- ./pngtestd pngtest.png
-
-test-installed:
- echo
- echo Testing installed dynamic shared library.
- $(CC) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags` \
- -L$(ZLIBLIB) -R$(ZLIBLIB)
- ./pngtesti pngtest.png
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
- libpng-config $(LIBSO) $(LIBSOMAJ)* \
- libpng.pc pnglibconf.h
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.solaris b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.solaris
deleted file mode 100644
index f6d7b58..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.solaris
+++ /dev/null
@@ -1,243 +0,0 @@
-# makefile for libpng on Solaris 2.x with gcc
-# Copyright (C) 2004, 2006-2008, 2010-2014 Glenn Randers-Pehrson
-# Contributed by William L. Sebok, based on makefile.linux
-# Copyright (C) 1998 Greg Roelofs
-# Copyright (C) 1996, 1997 Andreas Dilger
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# Library name:
-LIBNAME = libpng16
-PNGMAJ = 16
-
-# Shared library names:
-LIBSO=$(LIBNAME).so
-LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
-LIBSOREL=$(LIBSOMAJ).$(RELEASE)
-OLDSO=libpng.so
-
-# Utilities:
-AR_RC=ar rc
-CC=gcc
-MKDIR_P=mkdir -p
-LN_SF=ln -f -s
-RANLIB=echo
-CP=cp
-RM_F=/bin/rm -f
-
-# Where make install puts libpng.a, libpng16.so*, and png.h
-prefix=/usr/local
-exec_prefix=$(prefix)
-
-# Where the zlib library and include files are located
-# Changing these to ../zlib poses a security risk. If you want
-# to have zlib in an adjacent directory, specify the full path instead of "..".
-#ZLIBLIB=../zlib
-#ZLIBINC=../zlib
-
-ZLIBLIB=/usr/local/lib
-ZLIBINC=/usr/local/include
-
-WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
- -Wmissing-declarations -Wtraditional -Wcast-align \
- -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
-CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
-CFLAGS=-W -Wall -O # $(WARNMORE) -g
-LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng16 -lz -lm
-
-INCPATH=$(prefix)/include
-LIBPATH=$(exec_prefix)/lib
-MANPATH=$(prefix)/man
-BINPATH=$(exec_prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-OBJSDLL = $(OBJS:.o=.pic.o)
-
-.SUFFIXES: .c .o .pic.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-.c.pic.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -fPIC -o $@ $*.c
-
-all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-libpng.pc:
- cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
- -e s!@exec_prefix@!$(exec_prefix)! \
- -e s!@libdir@!$(LIBPATH)! \
- -e s!@includedir@!$(INCPATH)! \
- -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
-
-libpng-config:
- ( cat scripts/libpng-config-head.in; \
- echo prefix=\"$(prefix)\"; \
- echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
- echo cppflags=\"\"; \
- echo L_opts=\"-L$(LIBPATH)\"; \
- echo R_opts=\"-R$(LIBPATH)\"; \
- echo libs=\"-lpng16 -lz -lm\"; \
- cat scripts/libpng-config-body.in ) > libpng-config
- chmod +x libpng-config
-
-$(LIBSO): $(LIBSOMAJ)
- $(LN_SF) $(LIBSOMAJ) $(LIBSO)
-
-$(LIBSOMAJ): $(OBJSDLL)
- @case "`type ld`" in *ucb*) \
- echo; \
- echo '## WARNING:'; \
- echo '## The commands "CC" and "LD" must NOT refer to /usr/ucb/cc'; \
- echo '## and /usr/ucb/ld. If they do, you need to adjust your PATH'; \
- echo '## environment variable to put /usr/ccs/bin ahead of /usr/ucb.'; \
- echo '## The environment variable LD_LIBRARY_PATH should not be set'; \
- echo '## at all. If it is, things are likely to break because of'; \
- echo '## the libucb dependency that is created.'; \
- echo; \
- ;; \
- esac
- $(LD) -G -h $(LIBSOMAJ) \
- -o $(LIBSOMAJ) $(OBJSDLL)
-
-pngtest: pngtest.o $(LIBSO)
- $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
- ./pngtest
-
-install-headers: png.h pngconf.h pnglibconf.h
- -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
- -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
- cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
- chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
- -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
- -@$(RM_F) $(DI)/libpng
- (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- cp libpng.a $(DL)/$(LIBNAME).a
- chmod 644 $(DL)/$(LIBNAME).a
- -@$(RM_F) $(DL)/libpng.a
- (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBSOMAJ) libpng.pc
- -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
- -@$(RM_F) $(DL)/$(LIBSO)
- -@$(RM_F) $(DL)/$(LIBSOREL)
- -@$(RM_F) $(DL)/$(OLDSO)
- cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
- chmod 755 $(DL)/$(LIBSOREL)
- (cd $(DL); \
- $(LN_SF) $(LIBSOREL) $(LIBSO); \
- $(LN_SF) $(LIBSO) $(OLDSO))
- -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
- -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
- -@$(RM_F) $(DL)/pkgconfig/libpng.pc
- cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
- chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
- (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
- -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
- -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
- -@$(RM_F) $(DM)/man3/libpng.3
- -@$(RM_F) $(DM)/man3/libpngpf.3
- cp libpng.3 $(DM)/man3
- cp libpngpf.3 $(DM)/man3
- -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
- -@$(RM_F) $(DM)/man5/png.5
- cp png.5 $(DM)/man5
-
-install-config: libpng-config
- -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
- -@$(RM_F) $(DB)/libpng-config
- -@$(RM_F) $(DB)/$(LIBNAME)-config
- cp libpng-config $(DB)/$(LIBNAME)-config
- chmod 755 $(DB)/$(LIBNAME)-config
- (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location. Use test-dd to test it
-# before then.
-
-test-dd:
- echo
- echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags` \
- -L$(DL) -L$(ZLIBLIB) -R$(ZLIBLIB) -R$(DL)
- ./pngtestd pngtest.png
-
-test-installed:
- echo
- echo Testing installed dynamic shared library.
- $(CC) $(CPPFLAGS) \
- `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
- -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags` \
- -L$(ZLIBLIB) -R$(ZLIBLIB)
- ./pngtesti pngtest.png
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
- libpng-config $(LIBSO) $(LIBSOMAJ)* \
- libpng.pc pnglibconf.h
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.std b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.std
deleted file mode 100644
index 2f4871d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.std
+++ /dev/null
@@ -1,134 +0,0 @@
-# makefile for libpng
-# Copyright (C) 2002, 2006, 2014 Glenn Randers-Pehrson
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# where make install puts libpng.a and png.h
-prefix=/usr/local
-INCPATH=$(prefix)/include
-LIBPATH=$(prefix)/lib
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-# Where the zlib library and include files are located
-#ZLIBLIB=/usr/local/lib
-#ZLIBINC=/usr/local/include
-ZLIBLIB=../zlib
-ZLIBINC=../zlib
-
-CC = cc
-AR_RC = ar rc
-MKDIR_P = mkdir
-LN_SF = ln -sf
-RANLIB = ranlib
-CP = cp
-RM_F = rm -f
-AWK = awk
-SED = sed
-CPP = $(CC) -E
-ECHO = echo
-
-DFNFLAGS = # DFNFLAGS contains -D options to use in the libpng build
-DFA_EXTRA = # extra files that can be used to control configuration
-CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5
-CFLAGS = -O # -g
-LDFLAGS = -L. -L$(ZLIBLIB) -lpng -lz -lm
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-all: libpng.a pngtest
-
-# The standard pnglibconf.h exists as scripts/pnglibconf.h.prebuilt,
-# copy this if the following doesn't work.
-pnglibconf.h: pnglibconf.dfn
- $(RM_F) $@ pnglibconf.c pnglibconf.out pnglibconf.tmp
- $(ECHO) '#include "pnglibconf.dfn"' >pnglibconf.c
- $(ECHO) "If '$(CC) -E' crashes try /lib/cpp (e.g. CPP='/lib/cpp')" >&2
- $(CPP) $(DFNFLAGS) pnglibconf.c >pnglibconf.out
- $(AWK) -f "scripts/dfn.awk" out="pnglibconf.tmp" pnglibconf.out 1>&2
- mv pnglibconf.tmp $@
-
-pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk pngconf.h pngusr.dfa $(DFA_XTRA)
- $(RM_F) $@ pnglibconf.pre pnglibconf.tmp
- $(ECHO) "Calling $(AWK) from scripts/pnglibconf.mak" >&2
- $(ECHO) "If 'awk' crashes try a better awk (e.g. AWK='nawk')" >&2
- $(AWK) -f scripts/options.awk out="pnglibconf.pre"\
- version=search pngconf.h scripts/pnglibconf.dfa\
- pngusr.dfa $(DFA_XTRA) 1>&2
- $(AWK) -f scripts/options.awk out="pnglibconf.tmp" pnglibconf.pre 1>&2
- mv pnglibconf.tmp $@
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-pngtest: pngtest.o libpng.a
- $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
- ./pngtest
-
-install: libpng.a pnglibconf.h
- -@$(MKDIR_P) $(DESTDIR)$(INCPATH)
- -@$(MKDIR_P) $(DESTDIR)$(INCPATH)/libpng
- -@$(MKDIR_P) $(DESTDIR)$(LIBPATH)
- -@$(RM_F) $(DESTDIR)$(INCPATH)/png.h
- -@$(RM_F) $(DESTDIR)$(INCPATH)/pngconf.h
- -@$(RM_F) $(DESTDIR)$(INCPATH)/pnglibconf.h
- cp png.h $(DESTDIR)$(INCPATH)/libpng
- cp pngconf.h $(DESTDIR)$(INCPATH)/libpng
- cp pnglibconf.h $(DESTDIR)$(INCPATH)/libpng
- chmod 644 $(DESTDIR)$(INCPATH)/libpng/png.h
- chmod 644 $(DESTDIR)$(INCPATH)/libpng/pngconf.h
- chmod 644 $(DESTDIR)$(INCPATH)/libpng/pnglibconf.h
- (cd $(DESTDIR)$(INCPATH); ln -f -s libpng/* .)
- cp libpng.a $(DESTDIR)$(LIBPATH)
- chmod 644 $(DESTDIR)$(LIBPATH)/libpng.a
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngout.png pnglibconf.h pnglibconf.c \
- pnglibconf.out
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.sunos b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.sunos
deleted file mode 100644
index 9a0e28e..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.sunos
+++ /dev/null
@@ -1,115 +0,0 @@
-# makefile for libpng
-# Copyright (C) 2002, 2006, 2014 Glenn Randers-Pehrson
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# where make install puts libpng.a and png.h
-prefix=/usr/local
-INCPATH=$(prefix)/include
-LIBPATH=$(prefix)/lib
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location. Example:
-#
-# make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-# Where the zlib library and include files are located
-#ZLIBLIB=/usr/local/lib
-#ZLIBINC=/usr/local/include
-ZLIBLIB=../zlib
-ZLIBINC=../zlib
-
-
-WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow -Wconversion \
- -Wmissing-declarations -Wtraditional -Wcast-align \
- -Wstrict-prototypes -Wmissing-prototypes
-
-CC=gcc
-AR_RC=ar rc
-MKDIR_P=mkdir -p
-LN_SF=ln -f -s
-RANLIB=ranlib
-CP=cp
-RM_F=/bin/rm -f
-
-CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
-CFLAGS=-O # $(WARNMORE)
-LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
-
-# Pre-built configuration
-# See scripts/pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
- pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
- pngwtran.o pngmem.o pngerror.o pngpread.o
-
-.c.o:
- $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-
-all: libpng.a pngtest
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-libpng.a: $(OBJS)
- $(AR_RC) $@ $(OBJS)
- $(RANLIB) $@
-
-pngtest: pngtest.o libpng.a
- $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
- ./pngtest
-
-install: libpng.a
- -@$(MKDIR_P) $(DESTDIR)$(INCPATH)
- -@$(MKDIR_P) $(DESTDIR)$(INCPATH)/libpng
- -@$(MKDIR_P) $(DESTDIR)$(LIBPATH)
- -@$(RM_F) $(DESTDIR)$(INCPATH)/png.h
- -@$(RM_F) $(DESTDIR)$(INCPATH)/pngconf.h
- -@$(RM_F) $(DESTDIR)$(INCPATH)/pnglibconf.h
- cp png.h $(DESTDIR)$(INCPATH)/libpng
- cp pngconf.h $(DESTDIR)$(INCPATH)/libpng
- cp pnglibconf.h $(DESTDIR)$(INCPATH)/libpng
- chmod 644 $(DESTDIR)$(INCPATH)/libpng/png.h
- chmod 644 $(DESTDIR)$(INCPATH)/libpng/pngconf.h
- chmod 644 $(DESTDIR)$(INCPATH)/libpng/pnglibconf.h
- (cd $(DESTDIR)$(INCPATH); $(LN_SF) libpng/* .)
- cp libpng.a $(DESTDIR)$(LIBPATH)
- chmod 644 $(DESTDIR)$(LIBPATH)/libpng.a
-
-clean:
- $(RM_F) *.o libpng.a pngtest pngout.png pnglibconf.h
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
-writelock:
- chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-
-pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.vcwin32 b/3rdparty/libpng/libpng-1.6.37/scripts/makefile.vcwin32
deleted file mode 100644
index 2bd143c..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makefile.vcwin32
+++ /dev/null
@@ -1,113 +0,0 @@
-# makefile for libpng
-# Copyright (C) 1998 Tim Wegner
-# Copyright (C) 2006,2009,2011,2014 Glenn Randers-Pehrson
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-#
-# Assumes that zlib.lib, zconf.h, and zlib.h have been copied to ..\zlib
-# To use, do "nmake /f scripts\makefile.vcwin32"
-
-# -------- Microsoft Visual C++ 2.0 and later --------
-
-# Compiler, linker, librarian and other tools
-CC = cl
-LD = link
-AR = lib
-CPPFLAGS = -I..\zlib
-CFLAGS = -nologo -D_CRT_SECURE_NO_DEPRECATE -D_CRT_SECURE_NO_WARNINGS -MD -O2 -W3
-LDFLAGS = -nologo
-ARFLAGS = -nologo
-CP = copy
-RM = del
-
-# Pre-built configuration
-# See scripts\pnglibconf.mak for more options
-PNGLIBCONF_H_PREBUILT = scripts\pnglibconf.h.prebuilt
-
-# File extensions
-O=.obj
-
-#uncomment next to put error messages in a file
-#ERRFILE= >> pngerrs.log
-
-# Variables
-OBJS1 = png$(O) pngerror$(O) pngget$(O) pngmem$(O) pngpread$(O)
-OBJS2 = pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) pngset$(O)
-OBJS3 = pngtrans$(O) pngwio$(O) pngwrite$(O) pngwtran$(O) pngwutil$(O)
-OBJS = $(OBJS1) $(OBJS2) $(OBJS3)
-
-# Targets
-all: libpng.lib
-
-pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
- $(CP) $(PNGLIBCONF_H_PREBUILT) $@
-
-png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-libpng.lib: $(OBJS)
- -$(RM) $@
- $(AR) $(ARFLAGS) -out:$@ $(OBJS) $(ERRFILE)
-
-pngtest$(O): png.h pngconf.h pnglibconf.h
- $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-
-pngtest.exe: pngtest$(O) libpng.lib
- $(LD) $(LDFLAGS) -out:$@ pngtest$(O) libpng.lib ..\zlib\zlib.lib $(ERRFILE)
-
-test: pngtest.exe
- pngtest
-
-clean:
- -$(RM) *$(O)
- -$(RM) libpng.lib
- -$(RM) pnglibconf.h
- -$(RM) pngtest.exe
- -$(RM) pngout.png
-
-# End of makefile for libpng
-
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/makevms.com b/3rdparty/libpng/libpng-1.6.37/scripts/makevms.com
deleted file mode 100644
index f6c3261..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/makevms.com
+++ /dev/null
@@ -1,142 +0,0 @@
-$! make libpng under VMS
-$!
-$!
-$! Check for MMK/MMS
-$!
-$! This procedure accepts one parameter (contrib), which causes it to build
-$! the programs from the contrib directory instead of libpng.
-$!
-$ p1 = f$edit(p1,"UPCASE")
-$ if p1 .eqs. "CONTRIB"
-$ then
-$ set def [.contrib.gregbook]
-$ @makevms
-$ set def [-.pngminus]
-$ @makevms
-$ set def [--]
-$ exit
-$ endif
-$ Make = ""
-$ If F$Search ("Sys$System:MMS.EXE") .nes. "" Then Make = "MMS"
-$ If F$Type (MMK) .eqs. "STRING" Then Make = "MMK"
-$!
-$! Look for the compiler used
-$!
-$ zlibsrc = "[-.zlib]"
-$ ccopt="/include=''zlibsrc'"
-$ if f$getsyi("HW_MODEL").ge.1024
-$ then
-$ ccopt = "/prefix=all"+ccopt
-$ comp = "__decc__=1"
-$ if f$trnlnm("SYS").eqs."" then define sys sys$library:
-$ else
-$ if f$search("SYS$SYSTEM:DECC$COMPILER.EXE").eqs.""
-$ then
-$ if f$trnlnm("SYS").eqs."" then define sys sys$library:
-$ if f$search("SYS$SYSTEM:VAXC.EXE").eqs.""
-$ then
-$ comp = "__gcc__=1"
-$ CC :== GCC
-$ else
-$ comp = "__vaxc__=1"
-$ endif
-$ else
-$ if f$trnlnm("SYS").eqs."" then define sys decc$library_include:
-$ ccopt = "/decc/prefix=all"+ccopt
-$ comp = "__decc__=1"
-$ endif
-$ endif
-$!
-$! Build the thing plain or with mms/mmk
-$!
-$ write sys$output "Compiling Libpng sources ..."
-$ if make.eqs.""
-$ then
-$ dele pngtest.obj;*
-$ CALL MAKE png.OBJ "cc ''CCOPT' png" -
- png.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-$ CALL MAKE pngset.OBJ "cc ''CCOPT' pngset" -
- pngset.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-$ CALL MAKE pngget.OBJ "cc ''CCOPT' pngget" -
- pngget.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-$ CALL MAKE pngread.OBJ "cc ''CCOPT' pngread" -
- pngread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-$ CALL MAKE pngpread.OBJ "cc ''CCOPT' pngpread" -
- pngpread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-$ CALL MAKE pngrtran.OBJ "cc ''CCOPT' pngrtran" -
- pngrtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-$ CALL MAKE pngrutil.OBJ "cc ''CCOPT' pngrutil" -
- pngrutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-$ CALL MAKE pngerror.OBJ "cc ''CCOPT' pngerror" -
- pngerror.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-$ CALL MAKE pngmem.OBJ "cc ''CCOPT' pngmem" -
- pngmem.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-$ CALL MAKE pngrio.OBJ "cc ''CCOPT' pngrio" -
- pngrio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-$ CALL MAKE pngwio.OBJ "cc ''CCOPT' pngwio" -
- pngwio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-$ CALL MAKE pngtrans.OBJ "cc ''CCOPT' pngtrans" -
- pngtrans.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-$ CALL MAKE pngwrite.OBJ "cc ''CCOPT' pngwrite" -
- pngwrite.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-$ CALL MAKE pngwtran.OBJ "cc ''CCOPT' pngwtran" -
- pngwtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-$ CALL MAKE pngwutil.OBJ "cc ''CCOPT' pngwutil" -
- pngwutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-$ write sys$output "Building Libpng ..."
-$ CALL MAKE libpng.OLB "lib/crea libpng.olb *.obj" *.OBJ
-$ write sys$output "Building pngtest..."
-$ CALL MAKE pngtest.OBJ "cc ''CCOPT' pngtest" -
- pngtest.c png.h pngconf.h pnglibconf.h
-$ call make pngtest.exe -
- "LINK pngtest,libpng.olb/lib,''zlibsrc'libz.olb/lib" -
- pngtest.obj libpng.olb
-$ write sys$output "Testing Libpng..."
-$ run pngtest
-$ else
-$ if f$search("DESCRIP.MMS") .eqs. "" then copy/nolog [.SCRIPTS]DESCRIP.MMS []
-$ 'make'/macro=('comp',zlibsrc='zlibsrc')
-$ endif
-$ write sys$output "Libpng build completed"
-$ exit
-$!
-$!
-$MAKE: SUBROUTINE !SUBROUTINE TO CHECK DEPENDENCIES
-$ V = 'F$Verify(0)
-$! P1 = What we are trying to make
-$! P2 = Command to make it
-$! P3 - P8 What it depends on
-$
-$ If F$Search(P1) .Eqs. "" Then Goto Makeit
-$ Time = F$CvTime(F$File(P1,"RDT"))
-$arg=3
-$Loop:
-$ Argument = P'arg
-$ If Argument .Eqs. "" Then Goto Exit
-$ El=0
-$Loop2:
-$ File = F$Element(El," ",Argument)
-$ If File .Eqs. " " Then Goto Endl
-$ AFile = ""
-$Loop3:
-$ OFile = AFile
-$ AFile = F$Search(File)
-$ If AFile .Eqs. "" .Or. AFile .Eqs. OFile Then Goto NextEl
-$ If F$CvTime(F$File(AFile,"RDT")) .Ges. Time Then Goto Makeit
-$ Goto Loop3
-$NextEL:
-$ El = El + 1
-$ Goto Loop2
-$EndL:
-$ arg=arg+1
-$ If arg .Le. 8 Then Goto Loop
-$ Goto Exit
-$
-$Makeit:
-$ VV=F$VERIFY(0)
-$ write sys$output P2
-$ 'P2
-$ VV='F$Verify(VV)
-$Exit:
-$ If V Then Set Verify
-$ENDSUBROUTINE
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/options.awk b/3rdparty/libpng/libpng-1.6.37/scripts/options.awk
deleted file mode 100755
index fef5dfd..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/options.awk
+++ /dev/null
@@ -1,898 +0,0 @@
-#!/bin/awk -f
-# scripts/options.awk - library build configuration control
-#
-# last changed in libpng version 1.6.11 - June 5, 2014
-#
-# Copyright (c) 1998-2014 Glenn Randers-Pehrson
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-# The output of this script is written to the file given by
-# the variable 'out'. The script is run twice, once with
-# an intermediate output file, 'options.tmp' then again on
-# that file to produce the final output:
-#
-# awk -f scripts/options.awk out=options.tmp scripts/options.dfa 1>&2
-# awk -f scripts/options.awk out=options.dfn options.tmp 1>&2
-#
-# Some options may be specified on the command line:
-#
-# deb=1 Causes debugging to be output
-# logunsupported=1 Causes all options to be recorded in the output
-# everything=off Causes all options to be disabled by default
-# everything=on Causes all options to be enabled by default
-#
-# If awk fails on your platform, try nawk instead.
-#
-# These options may also be specified in the original input file (and
-# are copied to the preprocessed file).
-
-BEGIN{
- out="" # intermediate, preprocessed, file
- pre=-1 # preprocess (first line)
- version="libpng version unknown" # version information
- version_file="" # where to find the version
- err=0 # in-line exit sets this
- # The following definitions prevent the C preprocessor noticing the lines
- # that will be in the final output file. Some C preprocessors tokenise
- # the lines, for example by inserting spaces around operators, and all
- # C preprocessors notice lines that start with '#', most remove comments.
- # The technique adopted here is to make the final output lines into
- # C strings (enclosed in double quotes), preceded by PNG_DFN. As a
- # consequence the output cannot contain a 'raw' double quote - instead put
- # @' in, this will be replaced by a single " afterward. See the parser
- # script dfn.awk for more capabilities (not required here). Note that if
- # you need a " in a 'setting' in pnglibconf.dfa it must also be @'!
- dq="@'" # For a single double quote
- start=" PNG_DFN \"" # Start stuff to output (can't contain a "!)
- end="\" " # End stuff to output
- subs="@\" " # Substitute start (substitute a C macro)
- sube=" \"@" # Substitute end
- comment=start "/*" # Comment start
- cend="*/" end # Comment end
- def=start "#define PNG_" # Arbitrary define
- sup="_SUPPORTED" end # end supported option
- und=comment "#undef PNG_" # Unsupported option
- une="_SUPPORTED" cend # end unsupported option
- error=start "ERROR:" # error message, terminate with 'end'
-
- # Variables
- deb=0 # debug - set on command line
- everything="" # do not override defaults
- logunsupported=0 # write unsupported options too
-
- # Precreate arrays
- # for each option:
- option[""] = "" # list of all options: default enabled/disabled
- done[""] = 1 # marks option as having been output
- requires[""] = "" # requires by option
- iffs[""] = "" # if by option
- enabledby[""] = "" # options that enable it by option
- sets[""] = "" # settings set by each option
- setval[""] = "" # value to set (indexed: 'option sets[option]')
- # for each setting:
- setting[""] = "" # requires by setting
- defaults[""] = "" # used for a defaulted value
- doneset[""] = 1 # marks setting as having been output
- r[""] = "" # Temporary array
-
- # For decorating the output file
- protect = ""
-}
-
-# The output file must be specified before any input:
-out == "" {
- print "out=output.file must be given on the command line"
- err = 1
- exit 1
-}
-
-# The very first line indicates whether we are reading pre-processed
-# input or not, this must come *first* because 'PREPROCESSED' needs
-# to be the very first line in the temporary file.
-pre == -1{
- if ($0 == "PREPROCESSED") {
- pre = 0
- next
- } else {
- pre = 1
- print "PREPROCESSED" >out
- # And fall through to continue processing
- }
-}
-
-# While pre-processing if version is set to "search" look for a version string
-# in the following file.
-pre && version == "search" && version_file == ""{
- version_file = FILENAME
-}
-
-pre && version == "search" && version_file != FILENAME{
- print "version string not found in", version_file
- err = 1
- exit 1
-}
-
-pre && version == "search" && $0 ~ /^ \* libpng version/{
- version = substr($0, 4)
- print "version =", version >out
- next
-}
-
-pre && FILENAME == version_file{
- next
-}
-
-# variable=value
-# Sets the given variable to the given value (the syntax is fairly
-# free form, except for deb (you are expected to understand how to
-# set the debug variable...)
-#
-# This happens before the check on 'pre' below skips most of the
-# rest of the actions, so the variable settings happen during
-# preprocessing but are recorded in the END action too. This
-# allows them to be set on the command line too.
-$0 ~ /^[ ]*version[ ]*=/{
- sub(/^[ ]*version[ ]*=[ ]*/, "")
- version = $0
- next
-}
-$0 ~ /^[ ]*everything[ =]*off[ ]*$/{
- everything = "off"
- next
-}
-$0 ~ /^[ ]*everything[ =]*on[ ]*$/{
- everything = "on"
- next
-}
-$0 ~ /^[ ]*logunsupported[ =]*0[ ]*$/{
- logunsupported = 0
- next
-}
-$0 ~ /^[ ]*logunsupported[ =]*1[ ]*$/{
- logunsupported = 1
- next
-}
-$1 == "deb" && $2 == "=" && NF == 3{
- deb = $3
- next
-}
-
-# Preprocessing - this just copies the input file with lines
-# that need preprocessing (just chunk at present) expanded
-# The bare "pre" instead of "pre != 0" crashes under Sunos awk
-pre && $1 != "chunk"{
- print >out
- next
-}
-
-# The first characters of the line determine how it is processed,
-# leading spaces are ignored. In general tokens that are not
-# keywords are the names of options. An option 'name' is
-# controlled by the definition of the corresponding macros:
-#
-# PNG_name_SUPPORTED The option is turned on
-# PNG_NO_name
-# PNG_NO_name_SUPPORTED If the first macro is not defined
-# either of these will turn the option off
-#
-# If none of these macros are defined the option is turned on, unless
-# the keyword 'off' is given in a line relating to the option. The
-# keyword 'on' can also be given, but it will be ignored (since it is
-# the default.)
-#
-# In the syntax below a 'name' is indicated by "NAME", other macro
-# values are indicated by "MACRO", as with "NAME" the leading "PNG_"
-# is omitted, but in this case the "NO_" prefix and the "_SUPPORTED"
-# suffix are never used.
-#
-# Each line is introduced by a keyword - the first non-space characters
-# on the line. A line starting with a '#' is a comment - it is totally
-# ignored. Keywords are as follows, a NAME, is simply a macro name
-# without the leading PNG_, PNG_NO_ or the trailing _SUPPORTED.
-
-$1 ~ /^#/ || $0 ~ /^[ ]*$/{
- next
-}
-
-# com <comment>
-# The whole line is placed in the output file as a comment with
-# the preceding 'com' removed
-$1 == "com"{
- if (NF > 1) {
- # sub(/^[ ]*com[ ]*/, "")
- $1 = ""
- print comment $0, cend >out
- } else
- print start end >out
- next
-}
-
-# version
-# Inserts a version comment
-$1 == "version" && NF == 1{
- if (version == "") {
- print "ERROR: no version string set"
- err = 1 # prevent END{} running
- exit 1
- }
-
- print comment, version, cend >out
- next
-}
-
-# file output input protect
-# Informational: the official name of the input file (without
-# make generated local directories), the official name of the
-# output file and, if required, a name to use in a protection
-# macro for the contents.
-$1 == "file" && NF >= 2{
- print comment, $2, cend >out
- print comment, "Machine generated file: DO NOT EDIT", cend >out
- if (NF >= 3)
- print comment, "Derived from:", $3, cend >out
- protect = $4
- if (protect != "") {
- print start "#ifndef", protect end >out
- print start "#define", protect end >out
- }
- next
-}
-
-# option NAME ( (requires|enables|if) NAME* | on | off | disabled |
-# sets SETTING VALUE+ )*
-#
-# Declares an option 'NAME' and describes its default setting (disabled)
-# and its relationship to other options. The option is disabled
-# unless *all* the options listed after 'requires' are set and at
-# least one of the options listed after 'if' is set. If the
-# option is set then it turns on all the options listed after 'enables'.
-#
-# Note that "enables" takes priority over the required/if/disabled/off
-# setting of the target option.
-#
-# The definition file may list an option as 'disabled': off by default,
-# otherwise the option is enabled: on by default. A later (and it must
-# be later) entry may turn an option on or off explicitly.
-
-$1 == "option" && NF >= 2{
- opt = $2
- sub(/,$/,"",opt)
- onoff = option[opt] # records current (and the default is "", enabled)
- key = ""
- istart = 3
- do {
- if (istart == 1) { # continuation line
- val = getline
-
- if (val != 1) { # error reading it
- if (val == 0)
- print "option", opt ": ERROR: missing continuation line"
- else
- print "option", opt ": ERROR: error reading continuation line"
-
- # This is a hard error
- err = 1 # prevent END{} running
- exit 1
- }
- }
-
- for (i=istart; i<=NF; ++i) {
- val=$(i)
- sub(/,$/,"",val)
- if (val == "on" || val == "off" || val == "disabled" || val =="enabled") {
- key = ""
- if (onoff != val) {
- # on or off can zap disabled or enabled:
- if (onoff == "" || (onoff == "disabled" || onoff == "enabled") &&
- (val == "on" || val == "off")) {
- # It's easy to mis-spell the option when turning it
- # on or off, so warn about it here:
- if (onoff == "" && (val == "on" || val == "off")) {
- print "option", opt ": ERROR: turning unrecognized option", val
- # For the moment error out - it is safer
- err = 1 # prevent END{} running
- exit 1
- }
- onoff = val
- } else {
- # Print a message, otherwise the error
- # below is incomprehensible
- print "option", opt ": currently", onoff ": attempt to turn", val
- break
- }
- }
- } else if (val == "requires" || val == "if" || val == "enables" || val =="sets") {
- key = val
- } else if (key == "requires") {
- requires[opt] = requires[opt] " " val
- } else if (key == "if") {
- iffs[opt] = iffs[opt] " " val
- } else if (key == "enables") {
- enabledby[val] = enabledby[val] " " opt
- } else if (key == "sets") {
- sets[opt] = sets[opt] " " val
- key = "setval"
- set = val
- } else if (key == "setval") {
- setval[opt " " set] = setval[opt " " set] " " val
- } else
- break # bad line format
- }
-
- istart = 1
- } while (i > NF && $0 ~ /,$/)
-
- if (i > NF) {
- # Set the option, defaulting to 'enabled'
- if (onoff == "") onoff = "enabled"
- option[opt] = onoff
- next
- }
- # Else fall through to the error handler
-}
-
-# chunk NAME [requires OPT] [enables LIST] [on|off|disabled]
-# Expands to the 'option' settings appropriate to the reading and
-# writing of an ancillary PNG chunk 'NAME':
-#
-# option READ_NAME requires READ_ANCILLARY_CHUNKS [READ_OPT]
-# option READ_NAME enables NAME LIST
-# [option READ_NAME off]
-# option WRITE_NAME requires WRITE_ANCILLARY_CHUNKS [WRITE_OPT]
-# option WRITE_NAME enables NAME LIST
-# [option WRITE_NAME off]
-
-pre != 0 && $1 == "chunk" && NF >= 2{
- # 'chunk' is handled on the first pass by writing appropriate
- # 'option' lines into the intermediate file.
- opt = $2
- sub(/,$/,"",opt)
- onoff = ""
- reqread = ""
- reqwrite = ""
- enables = ""
- req = 0
- istart = 3
- do {
- if (istart == 1) { # continuation line
- val = getline
-
- if (val != 1) { # error reading it
- if (val == 0)
- print "chunk", opt ": ERROR: missing continuation line"
- else
- print "chunk", opt ": ERROR: error reading continuation line"
-
- # This is a hard error
- err = 1 # prevent END{} running
- exit 1
- }
- }
-
- # read the keywords/additional OPTS
- for (i=istart; i<=NF; ++i) {
- val = $(i)
- sub(/,$/,"",val)
- if (val == "on" || val == "off" || val == "disabled") {
- if (onoff != val) {
- if (onoff == "")
- onoff = val
- else
- break # on/off conflict
- }
- req = 0
- } else if (val == "requires")
- req = 1
- else if (val == "enables")
- req = 2
- else if (req == 1){
- reqread = reqread " READ_" val
- reqwrite = reqwrite " WRITE_" val
- } else if (req == 2)
- enables = enables " " val
- else
- break # bad line: handled below
- }
-
- istart = 1
- } while (i > NF && $0 ~ /,$/)
-
- if (i > NF) {
- # Output new 'option' lines to the intermediate file (out)
- print "option READ_" opt, "requires READ_ANCILLARY_CHUNKS" reqread, "enables", opt enables , onoff >out
- print "option WRITE_" opt, "requires WRITE_ANCILLARY_CHUNKS" reqwrite, "enables", opt enables, onoff >out
- next
- }
- # Else hit the error handler below - bad line format!
-}
-
-# setting MACRO ( requires MACRO* )* [ default VALUE ]
-# Behaves in a similar way to 'option' without looking for NO_ or
-# _SUPPORTED; the macro is enabled if it is defined so long as all
-# the 'requires' macros are also defined. The definitions may be
-# empty, an error will be issued if the 'requires' macros are
-# *not* defined. If given the 'default' value is used if the
-# macro is not defined. The default value will be re-tokenised.
-# (BTW: this is somewhat restrictive, it mainly exists for the
-# support of non-standard configurations and numeric parameters,
-# see the uses in scripts/options.dat
-
-$1 == "setting" && (NF == 2 || NF >= 3 && ($3 == "requires" || $3 == "default")){
- reqs = ""
- deflt = ""
- isdef = 0
- key = ""
- for (i=3; i<=NF; ++i)
- if ($(i) == "requires" || $(i) == "default") {
- key = $(i)
- if (key == "default") isdef = 1
- } else if (key == "requires")
- reqs = reqs " " $(i)
- else if (key == "default")
- deflt = deflt " " $(i)
- else
- break # Format error, handled below
-
- setting[$2] = reqs
- # NOTE: this overwrites a previous value silently
- if (isdef && deflt == "")
- deflt = " " # as a flag to force output
- defaults[$2] = deflt
- next
-}
-
-# The order of the dependency lines (option, chunk, setting) is irrelevant
-# - the 'enables', 'requires' and 'if' settings will be used to determine
-# the correct order in the output and the final values in pnglibconf.h are
-# not order dependent. 'requires' and 'if' entries take precedence over
-# 'enables' from other options; if an option requires another option it
-# won't be set regardless of any options that enable it unless the other
-# option is also enabled.
-#
-# Similarly 'enables' trumps a NO_ definition in CFLAGS or pngusr.h
-#
-# For simplicity cycles in the definitions are regarded as errors,
-# even if they are not ambiguous.
-# A given NAME can be specified in as many 'option' lines as required, the
-# definitions are additive.
-
-# For backwards compatibility equivalent macros may be listed thus:
-#
-# = [NO_]NAME MACRO
-# Makes -DMACRO equivalent to -DPNG_NO_NAME or -DPNG_NAME_SUPPORTED
-# as appropriate.
-#
-# The definition is injected into the C compiler input when encountered
-# in the second pass (so all these definitions appear *after* the @
-# lines!)
-#
-# 'NAME' is as above, but 'MACRO' is the full text of the equivalent
-# old, deprecated, macro.
-
-$1 == "=" && NF == 3{
- print "#ifdef PNG_" $3 >out
- if ($2 ~ /^NO_/)
- print "# define PNG_" $2 >out
- else
- print "# define PNG_" $2 "_SUPPORTED" >out
- print "#endif" >out
- next
-}
-
-# Lines may be injected into the C compiler input by preceding them
-# with an "@" character. The line is copied with just the leading
-# @ removed.
-
-$1 ~ /^@/{
- # sub(/^[ ]*@/, "")
- $1 = substr($1, 2)
- print >out
- next
-}
-
-# Check for unrecognized lines, because of the preprocessing chunk
-# format errors will be detected on the first pass independent of
-# any other format errors.
-{
- print "options.awk: bad line (" NR "):", $0
- err = 1 # prevent END{} running
- exit 1
-}
-
-# For checking purposes names that start with "ok_" or "fail_" are
-# not output to pnglibconf.h and must be either enabled or disabled
-# respectively for the build to succeed. This allows interdependencies
-# between options of the form "at least one of" or "at most one of"
-# to be checked. For example:
-#
-# option FLOATING_POINT enables ok_math
-# option FIXED_POINT enables ok_math
-# This ensures that at least one of FLOATING_POINT and FIXED_POINT
-# must be set for the build to succeed.
-#
-# option fail_math requires FLOATING_POINT FIXED_POINT
-# This means the build will fail if *both* FLOATING_POINT and
-# FIXED_POINT are set (this is an example; in fact both are allowed.)
-#
-# If all these options were given the build would require exactly one
-# of the names to be enabled.
-
-END{
- # END{} gets run on an exit (a traditional awk feature)
- if (err) exit 1
-
- if (pre) {
- # Record the final value of the variables
- print "deb =", deb >out
- if (everything != "") {
- print "everything =", everything >out
- }
- print "logunsupported =", logunsupported >out
- exit 0
- }
-
- # Do the options first (allowing options to set settings). The dependency
- # tree is thus:
- #
- # name > name
- # name requires name
- # name if name
- # name enabledby name
- #
- # First build a list 'tree' by option of all the things on which
- # it depends.
- print "" >out
- print "/* OPTIONS */" >out
- print comment, "options", cend >out
- for (opt in enabledby) tree[opt] = 1 # may not be explicit options
- for (opt in option) if (opt != "") {
- o = option[opt]
- # option should always be one of the following values
- if (o != "on" && o != "off" && o != "disabled" && o != "enabled") {
- print "internal option error (" o ")"
- exit 1
- }
- tree[opt] = "" # so unlisted options marked
- }
- for (opt in tree) if (opt != "") {
- if (tree[opt] == 1) {
- tree[opt] = ""
- if (option[opt] != "") {
- print "internal error (1)"
- exit 1
- }
- # Macros only listed in 'enables' remain off unless
- # one of the enabling macros is on.
- option[opt] = "disabled"
- }
-
- split("", list) # clear 'list'
- # Now add every requires, iffs or enabledby entry to 'list'
- # so that we can add a unique list of requirements to tree[i]
- split(requires[opt] iffs[opt] enabledby[opt], r)
- for (i in r) list[r[i]] = 1
- for (i in list) tree[opt] = tree[opt] " " i
- }
-
- # print the tree for extreme debugging
- if (deb > 2) for (i in tree) if (i != "") print i, "depends-on" tree[i]
-
- # Ok, now check all options marked explicitly 'on' or 'off':
- #
- # If an option[opt] is 'on' then turn on all requires[opt]
- # If an option[opt] is 'off' then turn off all enabledby[opt]
- #
- # Error out if we have to turn 'on' to an 'off' option or vice versa.
- npending = 0
- for (opt in option) if (opt != "") {
- if (option[opt] == "on" || option[opt] == "off") {
- pending[++npending] = opt
- }
- }
-
- err = 0 # set on error
- while (npending > 0) {
- opt = pending[npending--]
- if (option[opt] == "on") {
- nreqs = split(requires[opt], r)
- for (j=1; j<=nreqs; ++j) {
- if (option[r[j]] == "off") {
- print "option", opt, "turned on, but requirement", r[j], "is turned off"
- err = 1
- } else if (option[r[j]] != "on") {
- option[r[j]] = "on"
- pending[++npending] = r[j]
- }
- }
- } else {
- if (option[opt] != "off") {
- print "internal error (2)"
- exit 1
- }
- nreqs = split(enabledby[opt], r)
- for (j=1; j<=nreqs; ++j) {
- if (option[r[j]] == "on") {
- print "option", opt, "turned off, but enabled by", r[j], "which is turned on"
- err = 1
- } else if (option[r[j]] != "off") {
- option[r[j]] = "off"
- pending[++npending] = r[j]
- }
- }
- }
- }
- if (err) exit 1
-
- # Sort options:
- print "PNG_DFN_START_SORT 2" >out
-
- # option[i] is now the complete list of all the tokens we may
- # need to output, go through it as above, depth first.
- finished = 0
- while (!finished) {
- finished = 1
- movement = 0 # done nothing
- for (i in option) if (!done[i]) {
- nreqs = split(tree[i], r)
- if (nreqs > 0) {
- for (j=1; j<=nreqs; ++j) if (!done[r[j]]) {
- break
- }
- if (j<=nreqs) {
- finished = 0
- continue # next option
- }
- }
-
- # All the requirements have been processed, output
- # this option. An option is _SUPPORTED if:
- #
- # all 'requires' are _SUPPORTED AND
- # at least one of the 'if' options are _SUPPORTED AND
- # EITHER:
- # The name is _SUPPORTED (on the command line)
- # OR:
- # an 'enabledby' is _SUPPORTED
- # OR:
- # NO_name is not defined AND
- # the option is not disabled; an option is disabled if:
- # option == off
- # option == disabled && everything != on
- # option == "" && everything == off
- if (deb) print "option", i
- print "" >out
- print "/* option:", i, option[i] >out
- print " * requires: " requires[i] >out
- print " * if: " iffs[i] >out
- print " * enabled-by:" enabledby[i] >out
- print " * sets: " sets[i], "*/" >out
- print "#undef PNG_on" >out
- print "#define PNG_on 1" >out
-
- # requires
- nreqs = split(requires[i], r)
- for (j=1; j<=nreqs; ++j) {
- print "#ifndef PNG_" r[j] "_SUPPORTED" >out
- print "# undef PNG_on /*!" r[j] "*/" >out
- # This error appears in the final output if something
- # was switched 'on' but the processing above to force
- # the requires did not work
- if (option[i] == "on") {
- print error, i, "requires", r[j] end >out
- }
- print "#endif" >out
- }
-
- # if
- have_ifs = 0
- nreqs = split(iffs[i], r)
- print "#undef PNG_no_if" >out
- if (nreqs > 0) {
- have_ifs = 1
- print "/* if" iffs[i], "*/" >out
- print "#define PNG_no_if 1" >out
- for (j=1; j<=nreqs; ++j) {
- print "#ifdef PNG_" r[j] "_SUPPORTED" >out
- print "# undef PNG_no_if /*" r[j] "*/" >out
- print "#endif" >out
- }
- print "#ifdef PNG_no_if /*missing if*/" >out
- print "# undef PNG_on" >out
- # There is no checking above for this, because we
- # don't know which 'if' to choose, so whine about
- # it here:
- if (option[i] == "on") {
- print error, i, "needs one of:", iffs[i] end >out
- }
- print "#endif" >out
- }
-
- print "#ifdef PNG_on /*requires, if*/" >out
- # enables
- print "# undef PNG_not_enabled" >out
- print "# define PNG_not_enabled 1" >out
- print " /* enabled by" enabledby[i], "*/" >out
- nreqs = split(enabledby[i], r)
- for (j=1; j<=nreqs; ++j) {
- print "#ifdef PNG_" r[j] "_SUPPORTED" >out
- print "# undef PNG_not_enabled /*" r[j] "*/" >out
- # Oops, probably not intended (should be factored
- # out by the checks above).
- if (option[i] == "off") {
- print error, i, "enabled by:", r[j] end >out
- }
- print "#endif" >out
- }
-
- print "# ifndef PNG_" i "_SUPPORTED /*!command line*/" >out
- print "# ifdef PNG_not_enabled /*!enabled*/" >out
- # 'have_ifs' here means that everything = "off" still allows an 'if' on
- # an otherwise enabled option to turn it on; otherwise the 'if'
- # handling is effectively disabled by 'everything = off'
- if (option[i] == "off" || option[i] == "disabled" && everything != "on" || option[i] == "enabled" && everything == "off" && !have_ifs) {
- print "# undef PNG_on /*default off*/" >out
- } else {
- print "# ifdef PNG_NO_" i >out
- print "# undef PNG_on /*turned off*/" >out
- print "# endif" >out
- print "# ifdef PNG_NO_" i "_SUPPORTED" >out
- print "# undef PNG_on /*turned off*/" >out
- print "# endif" >out
- }
- print "# endif /*!enabled*/" >out
- print "# ifdef PNG_on" >out
- # The _SUPPORTED macro must be defined so that dependent
- # options output later work.
- print "# define PNG_" i "_SUPPORTED" >out
- print "# endif" >out
- print "# endif /*!command line*/" >out
- # If PNG_on is still set the option should be defined in
- # pnglibconf.h
- print "# ifdef PNG_on" >out
- if (i ~ /^fail_/) {
- print error, i, "is on: enabled by:" iffs[i] enabledby[i] ", requires" requires[i] end >out
- } else if (i !~ /^ok_/) {
- print def i sup >out
- # Supported option, set required settings
- nreqs = split(sets[i], r)
- for (j=1; j<=nreqs; ++j) {
- print "# ifdef PNG_set_" r[j] >out
- # Some other option has already set a value:
- print error, i, "sets", r[j] ": duplicate setting" end >out
- print error, " previous value: " end "PNG_set_" r[j] >out
- print "# else" >out
- # Else set the default: note that this won't accept arbitrary
- # values, the setval string must be acceptable to all the C
- # compilers we use. That means it must be VERY simple; a number,
- # a name or a string.
- print "# define PNG_set_" r[j], setval[i " " r[j]] >out
- print "# endif" >out
- }
- }
- print "# endif /* definition */" >out
- print "#endif /*requires, if*/" >out
- if (logunsupported || i ~ /^ok_/) {
- print "#ifndef PNG_on" >out
- if (logunsupported) {
- print und i une >out
- }
- if (i ~ /^ok_/) {
- print error, i, "not enabled: requires:" requires[i] ", enabled by:" iffs[i] enabledby[i] end >out
- }
- print "#endif" >out
- }
-
- done[i] = 1
- ++movement
- }
-
- if (!finished && !movement) {
- print "option: loop or missing option in dependency tree, cannot process:"
- for (i in option) if (!done[i]) {
- print " option", i, "depends on" tree[i], "needs:"
- nreqs = split(tree[i], r)
- if (nreqs > 0) for (j=1; j<=nreqs; ++j) if (!done[r[j]]) {
- print " " r[j]
- }
- }
- exit 1
- }
- }
- print "PNG_DFN_END_SORT" >out
- print comment, "end of options", cend >out
-
- # Do the 'setting' values second, the algorithm the standard
- # tree walk (O(1)) done in an O(2) while/for loop; iterations
- # settings x depth, outputting the deepest required macros
- # first.
- print "" >out
- print "/* SETTINGS */" >out
- print comment, "settings", cend >out
- # Sort (in dfn.awk) on field 2, the setting name
- print "PNG_DFN_START_SORT 2" >out
- finished = 0
- while (!finished) {
- finished = 1
- movement = 0 # done nothing
- for (i in setting) if (!doneset[i]) {
- nreqs = split(setting[i], r)
- if (nreqs > 0) {
- # By default assume the requires values are options, but if there
- # is no option with that name check for a setting
- for (j=1; j<=nreqs; ++j) if (option[r[j]] == "" && !doneset[r[j]]) {
- break
- }
- if (j<=nreqs) {
- finished = 0
- continue # try a different setting
- }
- }
-
- # All the requirements have been processed, output
- # this setting.
- if (deb) print "setting", i
- deflt = defaults[i]
- # Remove any spurious trailing spaces
- sub(/ *$/,"",deflt)
- # A leading @ means leave it unquoted so the preprocessor
- # can substitute the build time value
- if (deflt ~ /^ @/)
- deflt = " " subs substr(deflt, 3) sube
- print "" >out
- print "/* setting: ", i >out
- print " * requires:" setting[i] >out
- print " * default: ", defaults[i] deflt, "*/" >out
- for (j=1; j<=nreqs; ++j) {
- if (option[r[j]] != "")
- print "#ifndef PNG_" r[j] "_SUPPORTED" >out
- else
- print "#ifndef PNG_" r[j] >out
- print error, i, "requires", r[j] end >out
- print "# endif" >out
- }
- # The precedence is:
- #
- # 1) External definition; trumps:
- # 2) Option 'sets' value; trumps:
- # 3) Setting 'default'
- #
- print "#ifdef PNG_" i >out
- # PNG_<i> is defined, so substitute the value:
- print def i, subs "PNG_" i sube end >out
- print "#else /* use default */" >out
- print "# ifdef PNG_set_" i >out
- # Value from an option 'sets' argument
- print def i, subs "PNG_set_" i sube end >out
- # This is so that subsequent tests on the setting work:
- print "# define PNG_" i, "1" >out
- if (defaults[i] != "") {
- print "# else /*default*/" >out
- print def i deflt end >out
- print "# define PNG_" i, "1" >out
- }
- print "# endif /* defaults */" >out
- print "#endif /* setting", i, "*/" >out
-
- doneset[i] = 1
- ++movement
- }
-
- if (!finished && !movement) {
- print "setting: loop or missing setting in 'requires', cannot process:"
- for (i in setting) if (!doneset[i]) {
- print " setting", i, "requires" setting[i]
- }
- exit 1
- }
- }
- print "PNG_DFN_END_SORT" >out
- print comment, "end of settings", cend >out
-
- # Regular end - everything looks ok
- if (protect != "") {
- print start "#endif", "/*", protect, "*/" end >out
- }
-}
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/pnglibconf.dfa b/3rdparty/libpng/libpng-1.6.37/scripts/pnglibconf.dfa
deleted file mode 100644
index 4dcaf7c..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/pnglibconf.dfa
+++ /dev/null
@@ -1,920 +0,0 @@
-# scripts/pnglibconf.dfa - library build configuration control
-#
-@/*- pnglibconf.dfn intermediate file
-@ * generated from scripts/pnglibconf.dfa
-@ */
-#
-com pnglibconf.h - library build configuration
-com
-version
-com
-com Copyright (c) 2018-2019 Cosmin Truta
-com Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
-com
-com This code is released under the libpng license.
-com For conditions of distribution and use, see the disclaimer
-com and license in png.h
-com
-
-file pnglibconf.h scripts/pnglibconf.dfa PNGLCONF_H
-
-# This file is preprocessed by scripts/options.awk and the
-# C compiler to generate 'pnglibconf.h' - a list of all the
-# configuration options. The file lists the various options
-# that can *only* be specified during the libpng build;
-# pnglibconf.h freezes the definitions selected for the specific
-# build.
-#
-# The syntax is detailed in scripts/options.awk; this is a summary
-# only:
-#
-# setting <name> [requires ...] [default]
-# #define PNG_<name> <value> /* value comes from current setting */
-# option <name> [requires ...] [if ...] [enables ...] [disabled]
-# #define PNG_<name>_SUPPORTED if the requirements are met and
-# enable the other options listed
-# chunk <name> [requires ...] [enables ...] [disabled]
-# Enable chunk processing for the given ancillary chunk; any
-# 'requires something' expands to READ_something for read and
-# WRITE_something for write, but the enables list members are
-# used as given (e.g. enables GAMMA just expands to that on the
-# correspond READ_name and WRITE_name lines.)
-#
-# "," may be used to separate options on an 'option' line and is ignored; it
-# doesn't change the meaning of the line. (NOT setting, where "," becomes
-# part of the setting!) A comma at the end of an option line causes a
-# continuation (the next line is included in the option too.)
-#
-# Note that the 'on' and 'off' keywords, while valid on both option
-# and chunk, should not be used in this file because they force the
-# relevant options on or off.
-
-#----------------------------------------------------------------------
-
-# The following setting, option and chunk values can all be changed
-# while building libpng:
-#
-# setting: change 'setting' lines to fine tune library performance;
-# changes to the settings don't affect the libpng API functionally
-#
-# option: change 'option' lines to remove or add capabilities from
-# or to the library; options change the library API
-#
-# chunk: change 'chunk' lines to remove capabilities to process
-# optional ('ancillary') chunks. This does not prevent PNG
-# decoding but does change the libpng API because some chunks
-# will be ignored.
-#
-# There are three ways of disabling features, in no particular order:
-#
-# 1) Create 'pngusr.h', enter the required private build information
-# detailed below and #define PNG_NO_<option> for each option you
-# don't want in that file in that file. You can also turn on options
-# using PNG_<option>_SUPPORTED. When you have finished rerun
-# configure and rebuild pnglibconf.h file with -DPNG_USER_CONFIG:
-#
-# make clean
-# CPPFLAGS='-DPNG_USER_CONFIG' ./configure
-# make pnglibconf.h
-#
-# pngusr.h is only used during the creation of pnglibconf.h, but it
-# is safer to ensure that -DPNG_USER_CONFIG is specified throughout
-# the build by changing the CPPFLAGS passed to the initial ./configure
-#
-# 2) Add definitions of the settings you want to change to
-# CPPFLAGS; for example:
-#
-# -DPNG_DEFAULT_READ_MACROS=0
-#
-# (This would change the default to *not* use read macros.) Be
-# very careful to change only settings that don't alter the API
-# because this approach bypasses the private build checking. You
-# can also change settings from pngpriv.h (read pngpriv.h) safely
-# without API changes. Do that in the same way.
-#
-# 3) Write a new '.dfa' file (say 'pngusr.dfa') and in this file
-# provide override values for setting entries and turn option or
-# chunk values explicitly 'on' or 'off':
-#
-# setting FOO default VALUE
-# option BAR [on|off]
-#
-# Then add this file to the options.awk command line (the *first*
-# one) after this file. The make macro DFA_XTRA is provided to make
-# this easier (set it like CPPFLAGS prior to running ./configure).
-# Look at the builds below contrib/pngminim for some extreme examples
-# of how this can be used.
-#
-# Don't edit this file unless you are contributing a patch to
-# libpng and need new or modified options/settings.
-#----------------------------------------------------------------------
-
-# The following causes commented out #undef lines to be written to
-# pnglibconf.h; this can be stopped by logunsupported=0 in a later
-# file or on the command line (after pnglibconf.dfa)
-
-logunsupported = 1
-
-# The following allows the output from configure to modify the contents of
-# pnglibconf.h
-
-@#ifdef HAVE_CONFIG_H
-@# include "config.h"
-@#endif
-
-# PNG_USER_CONFIG has to be defined on the compiler command line
-# to cause pngusr.h to be read while constructing pnglibconf.h
-#
-# If you create a private DLL you need to define the following
-# macros in the file 'pngusr.h' and set -DPNG_USER_CONFIG for
-# compilation (i.e. in CPPFLAGS.)
-# #define PNG_USER_PRIVATEBUILD \
-# <Describes by whom and why this version of the DLL was built>
-# e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons."
-# #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to
-# distinguish your DLL from those of the official release. These
-# correspond to the trailing letters that come after the version
-# number and must match your private DLL name>
-# e.g. // private DLL "libpng13gx.dll"
-# #define PNG_USER_DLLFNAME_POSTFIX "gx"
-#
-# The following macros are also at your disposal if you want to complete the
-# DLL VERSIONINFO structure.
-# - PNG_USER_VERSIONINFO_COMMENTS
-# - PNG_USER_VERSIONINFO_COMPANYNAME
-# - PNG_USER_VERSIONINFO_LEGALTRADEMARKS
-
-# It is necessary to include configures definitions here so that AC_DEFINE
-# in configure.ac works in a comprehensible way
-@#if defined(HAVE_CONFIG_H) && !defined(PNG_NO_CONFIG_H)
-@# include "config.h"
-@#endif
-
-@#ifdef PNG_USER_CONFIG
-@# include "pngusr.h"
-@#endif
-
-# This is a special fixup for the Watcom C compiler on Windows, which has
-# multiple procedure call standards. Unless PNG_API_RULE is set explicitly
-# (i.e. if it is not defined at this point) it will be forced to '2' here when
-# using Watcom. This indicates to the other header files that Watcom behaviour
-# is required where appropriate.
-
-@#ifdef __WATCOMC__
-@# ifndef PNG_API_RULE
-@# define PNG_API_RULE 2 /* Use Watcom calling conventions */
-@# endif
-@#endif
-
-# IN DEVELOPMENT
-# These are currently experimental features; define them if you want (NOTE:
-# experimental options must be disabled before they are defined in this file!)
-
-# NONE
-
-# Note that PNG_USER_CONFIG only has an effect when building
-# pnglibconf.h
-
-setting USER_CONFIG
-setting USER_PRIVATEBUILD
-setting USER_DLLFNAME_POSTFIX
-setting USER_VERSIONINFO_COMMENTS
-setting USER_VERSIONINFO_COMPANYNAME
-setting USER_VERSIONINFO_LEGALTRADEMARKS
-
-# Record the 'API rule' used to select calling conventions on
-# those systems that support such things (see all the comments in
-# pngconf.h)
-# Changing this setting has a fundamental affect on the PNG ABI,
-# do not release shared libraries with this changed.
-
-setting API_RULE default 0
-
-# This allows a prefix to be added to the front of every API function name (and
-# therefore every symbol) by redefining all the function names with the prefix
-# at the end of pnglibconf.h. It also turns on similar internal symbol renaming
-# by causing a similar build-time only file, pngprefix.h, to be generated.
-
-setting PREFIX
-
-# Implementation specific control of the optimizations, enabled by those
-# hardware or software options that need it (typically when run-time choices
-# must be made by the user)
-option SET_OPTION disabled
-
-# These options are specific to the ARM NEON hardware optimizations. At present
-# these optimizations depend on GCC specific pre-processing of an assembler (.S)
-# file so they probably won't work with other compilers.
-#
-# ARM_NEON_OPT: unset: check at compile time (__ARM_NEON__ must be defined by
-# the compiler, typically as a result of specifying
-# CC="gcc -mfpu=neon".)
-# 0: disable (even if the CPU has a NEON FPU.)
-# 1: check at run time (via ARM_NEON_{API,CHECK})
-# 2: switch on unconditionally (inadvisable - instead pass
-# -mfpu=neon to GCC in CC)
-# When building libpng avoid using any setting other than '0'; '1' is
-# set automatically when either 'API' or 'CHECK' are configured in,
-# '2' should not be necessary as -mfpu=neon will achieve the same
-# effect as well as applying NEON optimizations to the rest of the
-# libpng code.
-# NOTE: any setting other than '0' requires ALIGNED_MEMORY
-# ARM_NEON_API: (PNG_ARM_NEON == 1) allow the optimization to be switched on
-# with png_set_option
-# ARM_NEON_CHECK: (PNG_ARM_NEON == 1) compile a run-time check to see if Neon
-# extensions are supported. This is poorly supported and
-# deprecated - use the png_set_option API.
-setting ARM_NEON_OPT
-option ARM_NEON_API disabled requires ALIGNED_MEMORY enables SET_OPTION,
- sets ARM_NEON_OPT 1
-option ARM_NEON_CHECK disabled requires ALIGNED_MEMORY,
- sets ARM_NEON_OPT 1
-
-# These options are specific to the PowerPC VSX hardware optimizations.
-#
-# POWERPC_VSX_OPT: unset: check at compile time (__PPC64__,__ALTIVEC__,__VSX__
-# must be defined by the compiler, typically as a result
-# of specifying
-# "-mvsx -maltivec" compiler flags)
-# 0: disable (even if the CPU supports VSX.)
-# 1: check at run time (via POWERPC_VSX_{API,CHECK})
-# 2: switch on unconditionally (inadvisable - instead pass
-# -mvsx -maltivec to compiler options)
-# When building libpng avoid using any setting other than '0'; '1' is
-# set automatically when either 'API' or 'CHECK' are configured in,
-# '2' should not be necessary as "-mvsx -maltivec" will achieve the same
-# effect as well as applying VSX optimizations to the rest of the
-# libpng code.
-# POWERPC_VSX_API: (PNG_POWERPC_VSX == 1) allow the optimization to be switched on
-# with png_set_option
-# POWERPC_VSX_CHECK: (PNG_POWERPC_VSX == 1) compile a run-time check to see if VSX
-# extensions are supported. This is supported not for all OSes
-# (see contrib/powerpc/README)
-setting POWERPC_VSX_OPT
-option POWERPC_VSX_API disabled enables SET_OPTION,
- sets POWERPC_VSX_OPT 1
-option POWERPC_VSX_CHECK disabled,
- sets POWERPC_VSX_OPT 1
-
-
-# These settings configure the default compression level (0-9) and 'strategy';
-# strategy is as defined by the implementors of zlib. It describes the input
-# data and modifies the zlib parameters in an attempt to optimize the balance
-# between search and huffman encoding in the zlib algorithms. The defaults are
-# the zlib.h defaults - the apparently recursive definition does not arise
-# because the name of the setting is prefixed by PNG_
-#
-# The TEXT values are the defaults when writing compressed text (all forms)
-
-# Include the zlib header so that the defaults below are known
-@# include <zlib.h>
-
-# The '@' here means to substitute the value when pnglibconf.h is built
-setting Z_DEFAULT_COMPRESSION default @Z_DEFAULT_COMPRESSION
-# TODO: why aren't these Z_RLE; zlib.h says that Z_RLE, specifically, is
-# appropriate for PNG images, maybe it doesn't exist in all versions?
-setting Z_DEFAULT_STRATEGY default @Z_FILTERED
-setting Z_DEFAULT_NOFILTER_STRATEGY default @Z_DEFAULT_STRATEGY
-setting ZLIB_VERNUM default @ZLIB_VERNUM
-
-# Linkage of:
-#
-# API: libpng API functions
-# CALLBACK: internal non-file-local callbacks
-# FUNCTION: internal non-file-local functions
-# DATA: internal non-file-local (const) data
-setting LINKAGE_API default extern
-setting LINKAGE_CALLBACK default extern
-setting LINKAGE_FUNCTION default extern
-setting LINKAGE_DATA default extern
-
-setting TEXT_Z_DEFAULT_COMPRESSION default @Z_DEFAULT_COMPRESSION
-setting TEXT_Z_DEFAULT_STRATEGY default @Z_DEFAULT_STRATEGY
-
-# Default to using the read macros
-
-setting DEFAULT_READ_MACROS default 1
-
-# The alternative is to call functions to read PNG values, if
-# the functions are turned *off* the read macros must always
-# be enabled, so turning this off will actually force the
-# USE_READ_MACROS option on (see pngconf.h)
-
-option READ_INT_FUNCTIONS requires READ
-
-# The same for write but these can only be switched off if no writing
-# is required at all - hence the use of a 'disabled', not a 'requires'.
-# If these are needed, they are enabled in the 'WRITE options' section
-# below.
-
-option WRITE_INT_FUNCTIONS disabled
-
-# Error controls
-#
-# WARNINGS: normally on, if off no warnings are generated
-# ERROR_TEXT: normally on, if off errors happen but there is no message
-# ERROR_NUMBERS: unimplemented feature, therefore disabled
-# BENIGN_ERRORS: support for just issuing warnings for recoverable errors
-#
-# BENIGN_READ_ERRORS:
-# By default recoverable errors on read should just generate warnings,
-# generally safe but PNG files that don't conform to the specification will
-# be accepted if a meaningful result can be produced.
-#
-# BENIGN_WRITE_ERRORS:
-# By default recoverable errors on write should just generate warnings,
-# not generally safe because this allows the application to write invalid
-# PNG files. Applications should enable this themselves; it's useful
-# because it means that a failure to write an ancillary chunk can often be
-# ignored.
-
-option WARNINGS
-option ERROR_TEXT
-option ERROR_NUMBERS disabled
-
-option BENIGN_ERRORS
-option BENIGN_WRITE_ERRORS requires BENIGN_ERRORS disabled
-option BENIGN_READ_ERRORS requires BENIGN_ERRORS
-
-
-# Generic options - affect both read and write.
-
-option MNG_FEATURES
-
-# Arithmetic options, the first is the big switch that chooses between internal
-# floating and fixed point arithmetic implementations - it does not affect any
-# APIs. The second two (the _POINT settings) switch off individual APIs.
-#
-# Prior to libpng 1.6.8 one of the API (_POINT) variants had to be selected. At
-# 1.6.8 this restriction has been removed; the simplified API can be used
-# without enabling any of the low level fixed/floating APIs.
-
-option FLOATING_ARITHMETIC
-option FLOATING_POINT
-option FIXED_POINT
-
-# This protects us against compilers that run on a windowing system
-# and thus don't have or would rather us not use the stdio types:
-# stdin, stdout, and stderr. The only one currently used is stderr
-# in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will
-# prevent these from being compiled and used. #defining PNG_NO_STDIO
-# will also prevent these, plus will prevent the entire set of stdio
-# macros and functions (FILE *, printf, etc.) from being compiled and used,
-# unless (PNG_DEBUG > 0) has been #defined.
-
-option STDIO
-option CONSOLE_IO requires STDIO
-
-# Note: prior to 1.5.0 this option could not be disabled if STDIO
-# was enabled. Prior to 1.5.3 this option required STDIO
-
-option TIME_RFC1123
-
-# PNG_SETJMP_NOT_SUPPORTED is an old equivalent for NO_SETJMP
-
-option SETJMP
-= NO_SETJMP SETJMP_NOT_SUPPORTED
-
-# If this is disabled it is not possible for apps to get the
-# values from the 'info' structure, this effectively removes
-# quite a lot of the READ API.
-
-option EASY_ACCESS
-
-# Added at libpng-1.2.0
-
-option USER_MEM
-
-# Added at libpng-1.4.0
-
-option IO_STATE
-
-# Libpng limits: limit the size of images and data on read.
-#
-# If this option is disabled all the limit checking code will be disabled:
-
-option USER_LIMITS requires READ
-
-# The default settings given below for the limits mean that libpng will
-# limit the size of images or the size of data in ancillary chunks to less
-# than the specification or implementation limits. Settings have the
-# following interpretations:
-#
-# USER_WIDTH_MAX: maximum width of an image that will be read
-# USER_HEIGHT_MAX: maximum height
-# USER_CHUNK_MALLOC_MAX: maximum in-memory (decompressed) size of a single chunk
-# USER_CHUNK_CACHE_MAX: maximum number of chunks to be cached
-#
-# Only chunks that are variable in number are counted towards the
-
-# Use 0x7fffffff for unlimited
-setting USER_WIDTH_MAX default 1000000
-setting USER_HEIGHT_MAX default 1000000
-
-# Use 0 for unlimited
-setting USER_CHUNK_CACHE_MAX default 1000
-setting USER_CHUNK_MALLOC_MAX default 8000000
-
-# If this option is enabled APIs to set the above limits at run time are added;
-# without this the hardwired (compile time) limits will be used.
-option SET_USER_LIMITS requires USER_LIMITS
-
-# All of the following options relate to code capabilities for
-# processing image data before creating a PNG or after reading one.
-# You can remove these capabilities safely and still be PNG
-# conformant, however the library that results is still non-standard.
-# See the comments above about how to change options and settings.
-
-# READ options
-#
-# WARNING: in libpng 1.5 maintained configuration compatibility with earlier
-# versions. In some cases turning off an option turned off other options, in
-# others it was ineffective unless dependent options were also turned off.
-# Libpng 1.6 changes this: in general if you turn off an option that affects
-# APIs it stays off and simply disables APIs that depend on it.
-#
-# As a result if you simply port the libpng 1.5 configuration to libpng 1.6 you
-# will probably see build failures due to missing APIs. Fixing these failures
-# requires some, perhaps considerable, knowledge of what your libpng using
-# applications are doing, fortunately there is no great reason for you to move
-# to libpng 1.6; the new interfaces in 1.6 will take several years to become
-# popular.
-
-option READ enables READ_INTERLACING SET_OPTION
-
-# Disabling READ_16BIT does not disable reading 16-bit PNG files, but it
-# forces them to be chopped down to 8-bit, and disables any 16-bit
-# processing after that has happened. You need to be sure to enable
-# READ_SCALE_16_TO_8 or READ_STRIP_16_TO_8 when you disable READ_16BIT for
-# this to work properly. You should disable the other option if you need to
-# ensure a particular conversion (otherwise the app can chose.)
-
-option READ_16BIT requires READ enables 16BIT
-
-option READ_QUANTIZE requires READ
-
-option READ_TRANSFORMS requires READ
-= NO_READ_TRANSFORMS READ_TRANSFORMS_NOT_SUPPORTED
-
-# Read gamma handling. Gamma processing is a core part of libpng and many of
-# the capabilities are dependent on libpng performing gamma correction.
-#
-# In libpng 1.6 disabling gamma processing (setting PNG_NO_READ_GAMMA)
-# consistently disables those parts of the API that depend on it. Prior to
-# 1.6.0 this was not true; the results were unpredictable and varied between
-# releases.
-#
-# If you disable gamma processing and your program no longer compiles you need
-# to ask whether you really need the APIs that are missing. If you do then you
-# almost certainly need the gamma processing.
-#
-# If you handle gamma issues outside libpng then you do not need the libpng
-# gamma processing; and it is an enormous waste of space. You just need to
-# remove the use of libpng APIs that depend on it.
-option READ_GAMMA requires READ_TRANSFORMS, READ_gAMA, READ_sRGB
-
-option READ_ALPHA_MODE requires READ_TRANSFORMS, READ_GAMMA
-option READ_BACKGROUND requires READ_TRANSFORMS, READ_STRIP_ALPHA, READ_GAMMA
-option READ_BGR requires READ_TRANSFORMS
-option READ_EXPAND_16 requires READ_TRANSFORMS, READ_16BIT, READ_EXPAND
-option READ_EXPAND requires READ_TRANSFORMS
-option READ_FILLER requires READ_TRANSFORMS
-option READ_GRAY_TO_RGB requires READ_TRANSFORMS
-option READ_INVERT_ALPHA requires READ_TRANSFORMS
-option READ_INVERT requires READ_TRANSFORMS
-option READ_PACK requires READ_TRANSFORMS
-option READ_PACKSWAP requires READ_TRANSFORMS
-option READ_RGB_TO_GRAY requires READ_TRANSFORMS, READ_GAMMA enables COLORSPACE
-option READ_SCALE_16_TO_8 requires READ_TRANSFORMS
-option READ_SHIFT requires READ_TRANSFORMS
-option READ_STRIP_16_TO_8 requires READ_TRANSFORMS
-option READ_STRIP_ALPHA requires READ_TRANSFORMS
-option READ_SWAP_ALPHA requires READ_TRANSFORMS
-option READ_SWAP requires READ_TRANSFORMS, READ_16BIT
-option READ_USER_TRANSFORM requires READ_TRANSFORMS
-
-option PROGRESSIVE_READ requires READ
-option SEQUENTIAL_READ requires READ
-
-# You can define PNG_NO_PROGRESSIVE_READ if you don't do progressive reading.
-# This is not talking about interlacing capability! You'll still have
-# interlacing unless you turn off the following which is required
-# for PNG-compliant decoders. (In other words, do not do this - in
-# fact it can't be disabled from the command line!)
-#option READ_INTERLACING requires READ
-
-option READ_COMPOSITE_NODIV requires READ
-= NO_READ_COMPOSITE_NODIV NO_READ_COMPOSITED_NODIV
-
-# Inch conversions
-
-option INCH_CONVERSIONS
-= INCH_CONVERSIONS INCH_CONVERSIONS
-
-# API to build a grayscale palette
-# NOTE: this is not used internally by libpng at present.
-
-option BUILD_GRAYSCALE_PALETTE
-
-# WRITE options
-
-option WRITE enables WRITE_INT_FUNCTIONS
-
-# Disabling WRITE_16BIT prevents 16-bit PNG files from being
-# generated.
-option WRITE_16BIT requires WRITE enables 16BIT
-
-option WRITE_TRANSFORMS requires WRITE
-= NO_WRITE_TRANSFORMS WRITE_TRANSFORMS_NOT_SUPPORTED
-
-option WRITE_SHIFT requires WRITE_TRANSFORMS
-option WRITE_PACK requires WRITE_TRANSFORMS
-option WRITE_BGR requires WRITE_TRANSFORMS
-option WRITE_SWAP requires WRITE_TRANSFORMS, WRITE_16BIT
-option WRITE_PACKSWAP requires WRITE_TRANSFORMS
-option WRITE_INVERT requires WRITE_TRANSFORMS
-option WRITE_FILLER requires WRITE_TRANSFORMS
-option WRITE_SWAP_ALPHA requires WRITE_TRANSFORMS
-option WRITE_INVERT_ALPHA requires WRITE_TRANSFORMS
-option WRITE_USER_TRANSFORM requires WRITE_TRANSFORMS
-
-# This is not required for PNG-compliant encoders, but can cause
-# trouble if left undefined
-
-option WRITE_INTERLACING requires WRITE
-
-# Deprecated, will be removed.
-option WRITE_WEIGHTED_FILTER requires WRITE
-
-option WRITE_FLUSH requires WRITE
-
-# Note: these can be turned off explicitly if not required by the
-# apps implementing the user transforms
-option USER_TRANSFORM_PTR if READ_USER_TRANSFORM, WRITE_USER_TRANSFORM
-option USER_TRANSFORM_INFO if READ_USER_TRANSFORM, WRITE_USER_TRANSFORM
-
-# This enables API to set compression parameters for compressing
-# non-IDAT chunks (zTXt, iTXt, iCCP, and unknown chunks). This feature
-# was added at libpng-1.5.3.
-option WRITE_CUSTOMIZE_ZTXT_COMPRESSION requires WRITE
-option WRITE_CUSTOMIZE_COMPRESSION requires WRITE
-
-# Any chunks you are not interested in, you can undef here. The
-# ones that allocate memory may be especially important (hIST,
-# tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info
-# a bit smaller.
-
-# The size of the png_text structure changed in libpng-1.0.6 when
-# iTXt support was added. iTXt support was turned off by default through
-# libpng-1.2.x, to support old apps that malloc the png_text structure
-# instead of calling png_set_text() and letting libpng malloc it. It
-# was turned on by default in libpng-1.4.0.
-
-option READ_ANCILLARY_CHUNKS requires READ
-# PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED is deprecated.
-= NO_READ_ANCILLARY_CHUNKS READ_ANCILLARY_CHUNKS_NOT_SUPPORTED
-
-option WRITE_ANCILLARY_CHUNKS requires WRITE
-# PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED is deprecated.
-= NO_WRITE_ANCILLARY_CHUNKS WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED
-
-# These options disable *all* the text chunks if turned off
-
-option TEXT disabled
-option READ_TEXT requires READ_ANCILLARY_CHUNKS enables TEXT
-option WRITE_TEXT requires WRITE_ANCILLARY_CHUNKS enables TEXT
-
-# Moved to pnglibconf.h at libpng-1.5.0
-# Feature support: in 1.4 this was in pngconf.h, but the following
-# features have no affect on the libpng API. Add library
-# only features to the end of this list. Add features that
-# affect the API above. (Note: the list of chunks follows
-# the library-only settings.)
-#
-# BUILD TIME ONLY OPTIONS
-# These options do not affect the API but rather alter how the
-# API is implemented, they get recorded in pnglibconf.h, but
-# can't be changed by the application.
-
-# Colorspace support (enabled as required); just the support for colorant
-# information. Gamma support, likewise, is just support for the gamma
-# information, READ_GAMMA is required for gamma transformations (so it
-# is possible to read PNG gamma without enabling all the libpng transform
-# code - do this for applications that do their own gamma processing)
-#
-# As of 1.6.0 COLORSPACE is only useful if the application processes the
-# information; this is because the library does not do any colorspace
-# processing, it just validates the data in the PNG file.
-
-option GAMMA disabled
-option COLORSPACE enables GAMMA disabled
-
-# When an ICC profile is read, or png_set, it will be checked for a match
-# against known sRGB profiles if the sRGB handling is enabled. The
-# PNG_sRGB_PROFILE_CHECKS setting controls how much work is done during the
-# check:
-#
-# -1: Don't do any sRGB profile checking.
-#
-# 0: Just validate the profile MD5 signature if present, otherwise use
-# the checks in option 1.
-#
-# 1: Additionally check the length, intent and adler32 checksum of the
-# actual data. If enabled this will reject known profiles that have
-# had the rendering intent in the header changed as well as other edits
-# done without updating the checksum. See the discussion below.
-#
-# 2: Additionally checksum all the data using the ethernet CRC32 algorithm.
-# This makes it more difficult to fake profiles and makes it less likely
-# to get a false positive on profiles with no signature, but is probably
-# just a waste of time since all currently approved ICC sRGB profiles have
-# a secure MD5 signature.
-#
-# The rendering intent. An ICC profile stores an intended rendering intent,
-# but does not include the value in the signature. The intent is documented
-# as the intent that should be used when combining two profiles. The sRGB
-# profile is intended, however, to be used with any of the four defined intents.
-# For this reason the sRGB chunk includes an 'intent' to be used when displaying
-# the image (intent is really a property of the image not the profile.)
-#
-# Unfortunately the iCCP chunk does not. It may therefore be that some
-# applications modify the intent in profiles (including sRGB profiles) to work
-# round this problem. Selecting an option other than option '0' will cause such
-# modified profiles to be rejected.
-#
-# Security. The use of Adler32 and CRC32 checksums does not help significantly
-# with any security issues. It is relatively easy to produce arbitrary profiles
-# with the required checksums on current computer systems. Nevertheless
-# security does not seem to be an issue because the only consequence of a false
-# positive is a false assertion that the profile is an sRGB profile. This might
-# be used to hide data from libpng using applications, but it doesn't seem
-# possible to damage them.
-
-setting sRGB_PROFILE_CHECKS default 2
-
-# Artificially align memory - the code typically aligns to 8 byte
-# boundaries if this is switched on, it's a small waste of space
-# but can help (in theory) on some architectures. Only affects
-# internal structures. Added at libpng 1.4.0
-
-option ALIGNED_MEMORY
-
-# Buggy compilers (e.g., gcc 2.7.2.2) need PNG_NO_POINTER_INDEXING
-# See png[wr]util.c, normally this should always be *on*
-
-option POINTER_INDEXING
-
-# Other defines for things like memory and the like can go here.
-
-# BUILD TIME SETTINGS
-# Like build time options these do not affect the API, but they
-# may be useful to applications because they record details of
-# how the API will behave particularly with regard to overall
-# accuracy.
-
-# This controls how fine the quantizing gets. As this allocates
-# a largish chunk of memory (32K), those who are not as concerned
-# with quantizing quality can decrease some or all of these.
-
-setting QUANTIZE_RED_BITS default 5
-setting QUANTIZE_GREEN_BITS default 5
-setting QUANTIZE_BLUE_BITS default 5
-
-# This controls how fine the gamma correction becomes when you
-# are only interested in 8 bits anyway. Increasing this value
-# results in more memory being used, and more pow() functions
-# being called to fill in the gamma tables. Don't set this value
-# less than 8, and even that may not work (I haven't tested it).
-
-setting MAX_GAMMA_8 default 11
-
-# This controls how much a difference in gamma we can tolerate before
-# we actually start doing gamma conversion, it's a fixed point value,
-# so the default below is 0.05, meaning libpng ignores corrections in
-# the range 0.95 to 1.05
-
-setting GAMMA_THRESHOLD_FIXED default 5000
-
-# Precision to use when converting a floating point value to a PNG
-# extension format string in an sCAL chunk (only relevant if the
-# floating point API is enabled)
-
-setting sCAL_PRECISION default 5
-
-# This is the size of the compression buffer, and thus the size of
-# an IDAT chunk. Make this whatever size you feel is best for your
-# machine. One of these will be allocated per png_struct. When this
-# is full, it writes the data to the disk, and does some other
-# calculations. Making this an extremely small size may slow
-# the library down, but you may want to experiment to determine
-# where it becomes significant, if you are concerned with memory
-# usage. Note that zlib allocates at least 32Kb also. For readers,
-# this describes the size of the buffer available to read the data in.
-# Unless this gets smaller than the size of a row (compressed),
-# it should not make much difference how big this is.
-
-setting ZBUF_SIZE default 8192
-
-# This is the size of the decompression buffer used when counting or checking
-# the decompressed size of an LZ stream from a compressed ancillary chunk; the
-# decompressed data is never used so a different size may be optimal. This size
-# was determined using contrib/libtests/timepng.c with compressed zTXt data
-# around 11MByte in size. Slight speed improvements (up to about 14% in
-# timepng) can be achieved by very large increases (to 32kbyte) on regular data,
-# but highly compressible data shows only around 2% improvement. The size is
-# chosen to minimize the effects of DoS attacks based on using very large
-# amounts of highly compressible data.
-
-setting INFLATE_BUF_SIZE default 1024
-
-# This is the maximum amount of IDAT data that the sequential reader will
-# process at one time. The setting does not affect the size of IDAT chunks
-# read, just the amount read at once. Neither does it affect the progressive
-# reader, which processes just the amount of data the application gives it.
-# The sequential reader is currently unable to process more than one IDAT at
-# once - it has to read and process each one in turn. There is no point setting
-# this to a value larger than the IDAT chunks typically encountered (it would
-# just waste memory) but there may be some point in reducing it below the value
-# of ZBUF_SIZE (the size of IDAT chunks written by libpng.)
-
-setting IDAT_READ_SIZE default PNG_ZBUF_SIZE
-
-# Ancillary chunks
-chunk bKGD
-chunk cHRM enables COLORSPACE
-chunk eXIf
-chunk gAMA enables GAMMA
-chunk hIST
-chunk iCCP enables COLORSPACE, GAMMA
-chunk iTXt enables TEXT
-chunk oFFs
-chunk pCAL
-chunk pHYs
-chunk sBIT
-chunk sCAL
-chunk sPLT
-chunk sRGB enables COLORSPACE, GAMMA, SET_OPTION
-chunk tEXt requires TEXT
-chunk tIME
-chunk tRNS
-chunk zTXt enables TEXT
-
-# This only affects support of the optional PLTE chunk in RGB and RGBA
-# images. Notice that READ_ANCILLARY_CHUNKS therefore disables part
-# of the regular chunk reading too.
-
-option READ_OPT_PLTE requires READ_ANCILLARY_CHUNKS
-
-# Unknown chunk handling
-#
-# 'UNKNOWN_CHUNKS' is a global option to disable all unknown chunk handling on
-# read or write; everything else below requires it (directly or indirectly).
-option UNKNOWN_CHUNKS
-
-# There are three main options to control the ability to read and write unknown
-# chunks. If either read option is turned on then unknown chunks will be read,
-# otherwise they are skipped. If the write option is turned on unknown chunks
-# set by png_set_unknown_chunks will be written otherwise it is an error to call
-# that API on a write struct.
-option WRITE_UNKNOWN_CHUNKS requires WRITE requires UNKNOWN_CHUNKS
-option WRITE_UNKNOWN_CHUNKS enables STORE_UNKNOWN_CHUNKS
-
-# The first way to read user chunks is to have libpng save them for a later call
-# to png_get_unknown_chunks, the application must call
-# png_set_keep_unknown_chunks to cause this to actually happen (see png.h)
-option SAVE_UNKNOWN_CHUNKS requires READ requires SET_UNKNOWN_CHUNKS
-option SAVE_UNKNOWN_CHUNKS enables READ_UNKNOWN_CHUNKS, STORE_UNKNOWN_CHUNKS
-
-# The second approach is to use an application provided callback to process the
-# chunks, the callback can either handle the chunk entirely itself or request
-# that libpng store the chunk for later retrieval via png_get_unknown_chunks.
-#
-# NOTE: If STORE_UNKNOWN_CHUNKS is not enabled (which is the default if
-# both SAVE_UNKNOWN_CHUNKS and WRITE_UNKNOWN_CHUNKS are disabled) then a
-# 0 result from the callback will be ignored because no support for saving
-# unknown chunks has been compiled in. The normal symptom is that your app
-# fails to compile because png_get_unknown_chunks is no longer defined in png.h.
-# If you encounter this issue simply enable STORE_UNKNOWN_CHUNKS in your build.
-#
-# Note that there is no 'WRITE_USER_CHUNKS' so the USER_CHUNKS option is always
-# the same as READ_USER_CHUNKS at present
-option READ_USER_CHUNKS requires READ, UNKNOWN_CHUNKS
-option READ_USER_CHUNKS enables READ_UNKNOWN_CHUNKS, USER_CHUNKS
-
-# Two further options are provided to allow detailed control of the handling.
-# The first enables png_set_keep_unknown_chunks; this allows the default to be
-# changed from discarding unknown chunks and allows per-chunk control. This is
-# required to use the SAVE_UNKNOWN_CHUNKS option. If enabled this option also
-# applies to write (see png.h), otherwise the write API simply writes all the
-# chunks it is given.
-#
-# The second option extends the unknown handling to allow known chunks to be
-# handled as though they were unknown. This option doesn't change any APIs, it
-# merely turns on the code to check known as well as unknown chunks.
-#
-# This option no longer affects the write code. It can be safely disabled and
-# will prevent applications stopping libpng reading known chunks.
-option SET_UNKNOWN_CHUNKS requires UNKNOWN_CHUNKS
-option HANDLE_AS_UNKNOWN requires SET_UNKNOWN_CHUNKS
-
-# The following options are derived from the above and should not be turned on
-# explicitly.
-option READ_UNKNOWN_CHUNKS requires UNKNOWN_CHUNKS disabled
-option STORE_UNKNOWN_CHUNKS requires UNKNOWN_CHUNKS disabled
-
-option CONVERT_tIME requires WRITE_ANCILLARY_CHUNKS
-# The "tm" structure is not supported on WindowsCE
-
-@#ifdef _WIN32_WCE
-@# define PNG_NO_CONVERT_tIME
-@#endif
-
-option WRITE_FILTER requires WRITE
-
-option SAVE_INT_32 disabled
-# png_save_int_32 is required internally for writing the ancillary chunks oFFs
-# and pCAL and for both reading and writing iCCP (for the generation/checking of
-# the corresponding cHRM/gAMA chunks) if full ICC is supported.
-
-# added at libpng-1.5.4
-
-option WRITE_OPTIMIZE_CMF requires WRITE
-
-option READ_COMPRESSED_TEXT disabled
-option READ_iCCP enables READ_COMPRESSED_TEXT
-option READ_iTXt enables READ_COMPRESSED_TEXT
-option READ_zTXt enables READ_COMPRESSED_TEXT
-
-option WRITE_oFFs enables SAVE_INT_32
-option WRITE_pCAL enables SAVE_INT_32
-option WRITE_cHRM enables SAVE_INT_32
-
-option WRITE_COMPRESSED_TEXT disabled
-option WRITE_iCCP enables WRITE_COMPRESSED_TEXT
-option WRITE_iTXt enables WRITE_COMPRESSED_TEXT
-option WRITE_zTXt enables WRITE_COMPRESSED_TEXT
-
-# Turn this off to disable png_read_png() and png_write_png() and
-# leave the row_pointers member out of the info structure.
-
-option INFO_IMAGE
-
-# added at libpng-1.5.10
-# Turn this off to disable warning about invalid palette index and
-# leave the num_palette_max member out of the png structure.
-
-option CHECK_FOR_INVALID_INDEX enables READ_CHECK_FOR_INVALID_INDEX
-option CHECK_FOR_INVALID_INDEX enables WRITE_CHECK_FOR_INVALID_INDEX
-option READ_CHECK_FOR_INVALID_INDEX requires READ, CHECK_FOR_INVALID_INDEX
-option WRITE_CHECK_FOR_INVALID_INDEX requires WRITE, CHECK_FOR_INVALID_INDEX
-
-# added at libpng-1.5.15
-option GET_PALETTE_MAX enables READ_GET_PALETTE_MAX WRITE_GET_PALETTE_MAX
-option READ_GET_PALETTE_MAX requires READ_CHECK_FOR_INVALID_INDEX disabled
-option WRITE_GET_PALETTE_MAX requires WRITE_CHECK_FOR_INVALID_INDEX disabled
-
-# Simplified API options (added at libpng-1.6.0)
-# In libpng 1.6.8 the handling of these options was changed to used 'requires'
-# throughout, so that disabling some of the low level support always disables
-# the base simplified read/write API. This much simplifies the handling and
-# makes 'everything = off' work in a more intuitive way. It eliminates a
-# previously reported feature that APIs previously enabled by the simplified
-# API couldn't be turned off without explicitly turning off the simplified
-# APIs.
-#
-# Read:
-option SIMPLIFIED_READ,
- requires SEQUENTIAL_READ, READ_TRANSFORMS, SETJMP, BENIGN_ERRORS,
- READ_EXPAND, READ_16BIT, READ_EXPAND_16, READ_SCALE_16_TO_8,
- READ_RGB_TO_GRAY, READ_ALPHA_MODE, READ_BACKGROUND, READ_STRIP_ALPHA,
- READ_FILLER, READ_SWAP, READ_PACK, READ_GRAY_TO_RGB, READ_GAMMA,
- READ_tRNS, READ_bKGD, READ_gAMA, READ_cHRM, READ_sRGB, READ_sBIT
-
-# AFIRST and BGR read options:
-# Prior to libpng 1.6.8 these were disabled but switched on if the low level
-# libpng routines that do the swaps were enabled. This worked but was
-# confusing. In libpng 1.6.8 the options were changed to simple 'requires'
-# and are enabled by default. This should work the same way in practice.
-option SIMPLIFIED_READ_AFIRST enables FORMAT_AFIRST,
- requires SIMPLIFIED_READ READ_SWAP_ALPHA
-
-option SIMPLIFIED_READ_BGR enables FORMAT_BGR,
- requires SIMPLIFIED_READ READ_BGR
-
-# Write:
-option SIMPLIFIED_WRITE,
- requires WRITE, SETJMP, WRITE_SWAP, WRITE_PACK,
- WRITE_tRNS, WRITE_gAMA, WRITE_sRGB, WRITE_cHRM
-
-# 1.6.22: allow simplified write without stdio support:
-option SIMPLIFIED_WRITE_STDIO requires SIMPLIFIED_WRITE STDIO
-
-option SIMPLIFIED_WRITE_AFIRST enables FORMAT_AFIRST,
- requires SIMPLIFIED_WRITE WRITE_SWAP_ALPHA
-
-option SIMPLIFIED_WRITE_BGR enables FORMAT_BGR,
- requires SIMPLIFIED_WRITE WRITE_BGR
-
-# Formats:
-option FORMAT_AFIRST disabled
-option FORMAT_BGR disabled
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/pnglibconf.h.prebuilt b/3rdparty/libpng/libpng-1.6.37/scripts/pnglibconf.h.prebuilt
deleted file mode 100644
index e1e27e9..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/pnglibconf.h.prebuilt
+++ /dev/null
@@ -1,219 +0,0 @@
-/* pnglibconf.h - library build configuration */
-
-/* libpng version 1.6.37 */
-
-/* Copyright (c) 2018-2019 Cosmin Truta */
-/* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson */
-
-/* This code is released under the libpng license. */
-/* For conditions of distribution and use, see the disclaimer */
-/* and license in png.h */
-
-/* pnglibconf.h */
-/* Machine generated file: DO NOT EDIT */
-/* Derived from: scripts/pnglibconf.dfa */
-#ifndef PNGLCONF_H
-#define PNGLCONF_H
-/* options */
-#define PNG_16BIT_SUPPORTED
-#define PNG_ALIGNED_MEMORY_SUPPORTED
-/*#undef PNG_ARM_NEON_API_SUPPORTED*/
-/*#undef PNG_ARM_NEON_CHECK_SUPPORTED*/
-#define PNG_BENIGN_ERRORS_SUPPORTED
-#define PNG_BENIGN_READ_ERRORS_SUPPORTED
-/*#undef PNG_BENIGN_WRITE_ERRORS_SUPPORTED*/
-#define PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED
-#define PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
-#define PNG_COLORSPACE_SUPPORTED
-#define PNG_CONSOLE_IO_SUPPORTED
-#define PNG_CONVERT_tIME_SUPPORTED
-#define PNG_EASY_ACCESS_SUPPORTED
-/*#undef PNG_ERROR_NUMBERS_SUPPORTED*/
-#define PNG_ERROR_TEXT_SUPPORTED
-#define PNG_FIXED_POINT_SUPPORTED
-#define PNG_FLOATING_ARITHMETIC_SUPPORTED
-#define PNG_FLOATING_POINT_SUPPORTED
-#define PNG_FORMAT_AFIRST_SUPPORTED
-#define PNG_FORMAT_BGR_SUPPORTED
-#define PNG_GAMMA_SUPPORTED
-#define PNG_GET_PALETTE_MAX_SUPPORTED
-#define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
-#define PNG_INCH_CONVERSIONS_SUPPORTED
-#define PNG_INFO_IMAGE_SUPPORTED
-#define PNG_IO_STATE_SUPPORTED
-#define PNG_MNG_FEATURES_SUPPORTED
-#define PNG_POINTER_INDEXING_SUPPORTED
-/*#undef PNG_POWERPC_VSX_API_SUPPORTED*/
-/*#undef PNG_POWERPC_VSX_CHECK_SUPPORTED*/
-#define PNG_PROGRESSIVE_READ_SUPPORTED
-#define PNG_READ_16BIT_SUPPORTED
-#define PNG_READ_ALPHA_MODE_SUPPORTED
-#define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
-#define PNG_READ_BACKGROUND_SUPPORTED
-#define PNG_READ_BGR_SUPPORTED
-#define PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
-#define PNG_READ_COMPOSITE_NODIV_SUPPORTED
-#define PNG_READ_COMPRESSED_TEXT_SUPPORTED
-#define PNG_READ_EXPAND_16_SUPPORTED
-#define PNG_READ_EXPAND_SUPPORTED
-#define PNG_READ_FILLER_SUPPORTED
-#define PNG_READ_GAMMA_SUPPORTED
-#define PNG_READ_GET_PALETTE_MAX_SUPPORTED
-#define PNG_READ_GRAY_TO_RGB_SUPPORTED
-#define PNG_READ_INTERLACING_SUPPORTED
-#define PNG_READ_INT_FUNCTIONS_SUPPORTED
-#define PNG_READ_INVERT_ALPHA_SUPPORTED
-#define PNG_READ_INVERT_SUPPORTED
-#define PNG_READ_OPT_PLTE_SUPPORTED
-#define PNG_READ_PACKSWAP_SUPPORTED
-#define PNG_READ_PACK_SUPPORTED
-#define PNG_READ_QUANTIZE_SUPPORTED
-#define PNG_READ_RGB_TO_GRAY_SUPPORTED
-#define PNG_READ_SCALE_16_TO_8_SUPPORTED
-#define PNG_READ_SHIFT_SUPPORTED
-#define PNG_READ_STRIP_16_TO_8_SUPPORTED
-#define PNG_READ_STRIP_ALPHA_SUPPORTED
-#define PNG_READ_SUPPORTED
-#define PNG_READ_SWAP_ALPHA_SUPPORTED
-#define PNG_READ_SWAP_SUPPORTED
-#define PNG_READ_TEXT_SUPPORTED
-#define PNG_READ_TRANSFORMS_SUPPORTED
-#define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_READ_USER_CHUNKS_SUPPORTED
-#define PNG_READ_USER_TRANSFORM_SUPPORTED
-#define PNG_READ_bKGD_SUPPORTED
-#define PNG_READ_cHRM_SUPPORTED
-#define PNG_READ_eXIf_SUPPORTED
-#define PNG_READ_gAMA_SUPPORTED
-#define PNG_READ_hIST_SUPPORTED
-#define PNG_READ_iCCP_SUPPORTED
-#define PNG_READ_iTXt_SUPPORTED
-#define PNG_READ_oFFs_SUPPORTED
-#define PNG_READ_pCAL_SUPPORTED
-#define PNG_READ_pHYs_SUPPORTED
-#define PNG_READ_sBIT_SUPPORTED
-#define PNG_READ_sCAL_SUPPORTED
-#define PNG_READ_sPLT_SUPPORTED
-#define PNG_READ_sRGB_SUPPORTED
-#define PNG_READ_tEXt_SUPPORTED
-#define PNG_READ_tIME_SUPPORTED
-#define PNG_READ_tRNS_SUPPORTED
-#define PNG_READ_zTXt_SUPPORTED
-#define PNG_SAVE_INT_32_SUPPORTED
-#define PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_SEQUENTIAL_READ_SUPPORTED
-#define PNG_SETJMP_SUPPORTED
-#define PNG_SET_OPTION_SUPPORTED
-#define PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_SET_USER_LIMITS_SUPPORTED
-#define PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED
-#define PNG_SIMPLIFIED_READ_BGR_SUPPORTED
-#define PNG_SIMPLIFIED_READ_SUPPORTED
-#define PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
-#define PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED
-#define PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED
-#define PNG_SIMPLIFIED_WRITE_SUPPORTED
-#define PNG_STDIO_SUPPORTED
-#define PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_TEXT_SUPPORTED
-#define PNG_TIME_RFC1123_SUPPORTED
-#define PNG_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_USER_CHUNKS_SUPPORTED
-#define PNG_USER_LIMITS_SUPPORTED
-#define PNG_USER_MEM_SUPPORTED
-#define PNG_USER_TRANSFORM_INFO_SUPPORTED
-#define PNG_USER_TRANSFORM_PTR_SUPPORTED
-#define PNG_WARNINGS_SUPPORTED
-#define PNG_WRITE_16BIT_SUPPORTED
-#define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
-#define PNG_WRITE_BGR_SUPPORTED
-#define PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
-#define PNG_WRITE_COMPRESSED_TEXT_SUPPORTED
-#define PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
-#define PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
-#define PNG_WRITE_FILLER_SUPPORTED
-#define PNG_WRITE_FILTER_SUPPORTED
-#define PNG_WRITE_FLUSH_SUPPORTED
-#define PNG_WRITE_GET_PALETTE_MAX_SUPPORTED
-#define PNG_WRITE_INTERLACING_SUPPORTED
-#define PNG_WRITE_INT_FUNCTIONS_SUPPORTED
-#define PNG_WRITE_INVERT_ALPHA_SUPPORTED
-#define PNG_WRITE_INVERT_SUPPORTED
-#define PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
-#define PNG_WRITE_PACKSWAP_SUPPORTED
-#define PNG_WRITE_PACK_SUPPORTED
-#define PNG_WRITE_SHIFT_SUPPORTED
-#define PNG_WRITE_SUPPORTED
-#define PNG_WRITE_SWAP_ALPHA_SUPPORTED
-#define PNG_WRITE_SWAP_SUPPORTED
-#define PNG_WRITE_TEXT_SUPPORTED
-#define PNG_WRITE_TRANSFORMS_SUPPORTED
-#define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
-#define PNG_WRITE_USER_TRANSFORM_SUPPORTED
-#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
-#define PNG_WRITE_bKGD_SUPPORTED
-#define PNG_WRITE_cHRM_SUPPORTED
-#define PNG_WRITE_eXIf_SUPPORTED
-#define PNG_WRITE_gAMA_SUPPORTED
-#define PNG_WRITE_hIST_SUPPORTED
-#define PNG_WRITE_iCCP_SUPPORTED
-#define PNG_WRITE_iTXt_SUPPORTED
-#define PNG_WRITE_oFFs_SUPPORTED
-#define PNG_WRITE_pCAL_SUPPORTED
-#define PNG_WRITE_pHYs_SUPPORTED
-#define PNG_WRITE_sBIT_SUPPORTED
-#define PNG_WRITE_sCAL_SUPPORTED
-#define PNG_WRITE_sPLT_SUPPORTED
-#define PNG_WRITE_sRGB_SUPPORTED
-#define PNG_WRITE_tEXt_SUPPORTED
-#define PNG_WRITE_tIME_SUPPORTED
-#define PNG_WRITE_tRNS_SUPPORTED
-#define PNG_WRITE_zTXt_SUPPORTED
-#define PNG_bKGD_SUPPORTED
-#define PNG_cHRM_SUPPORTED
-#define PNG_eXIf_SUPPORTED
-#define PNG_gAMA_SUPPORTED
-#define PNG_hIST_SUPPORTED
-#define PNG_iCCP_SUPPORTED
-#define PNG_iTXt_SUPPORTED
-#define PNG_oFFs_SUPPORTED
-#define PNG_pCAL_SUPPORTED
-#define PNG_pHYs_SUPPORTED
-#define PNG_sBIT_SUPPORTED
-#define PNG_sCAL_SUPPORTED
-#define PNG_sPLT_SUPPORTED
-#define PNG_sRGB_SUPPORTED
-#define PNG_tEXt_SUPPORTED
-#define PNG_tIME_SUPPORTED
-#define PNG_tRNS_SUPPORTED
-#define PNG_zTXt_SUPPORTED
-/* end of options */
-/* settings */
-#define PNG_API_RULE 0
-#define PNG_DEFAULT_READ_MACROS 1
-#define PNG_GAMMA_THRESHOLD_FIXED 5000
-#define PNG_IDAT_READ_SIZE PNG_ZBUF_SIZE
-#define PNG_INFLATE_BUF_SIZE 1024
-#define PNG_LINKAGE_API extern
-#define PNG_LINKAGE_CALLBACK extern
-#define PNG_LINKAGE_DATA extern
-#define PNG_LINKAGE_FUNCTION extern
-#define PNG_MAX_GAMMA_8 11
-#define PNG_QUANTIZE_BLUE_BITS 5
-#define PNG_QUANTIZE_GREEN_BITS 5
-#define PNG_QUANTIZE_RED_BITS 5
-#define PNG_TEXT_Z_DEFAULT_COMPRESSION (-1)
-#define PNG_TEXT_Z_DEFAULT_STRATEGY 0
-#define PNG_USER_CHUNK_CACHE_MAX 1000
-#define PNG_USER_CHUNK_MALLOC_MAX 8000000
-#define PNG_USER_HEIGHT_MAX 1000000
-#define PNG_USER_WIDTH_MAX 1000000
-#define PNG_ZBUF_SIZE 8192
-#define PNG_ZLIB_VERNUM 0 /* unknown */
-#define PNG_Z_DEFAULT_COMPRESSION (-1)
-#define PNG_Z_DEFAULT_NOFILTER_STRATEGY 0
-#define PNG_Z_DEFAULT_STRATEGY 1
-#define PNG_sCAL_PRECISION 5
-#define PNG_sRGB_PROFILE_CHECKS 2
-/* end of settings */
-#endif /* PNGLCONF_H */
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/pnglibconf.mak b/3rdparty/libpng/libpng-1.6.37/scripts/pnglibconf.mak
deleted file mode 100755
index c125ca2..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/pnglibconf.mak
+++ /dev/null
@@ -1,55 +0,0 @@
-#!/usr/bin/make -f
-# pnglibconf.mak - standard make lines for pnglibconf.h
-#
-# These lines are copied from Makefile.am, they illustrate
-# how to automate the build of pnglibconf.h from scripts/pnglibconf.dfa
-# given just 'awk', a C preprocessor and standard command line utilities
-
-# Override as appropriate, these definitions can be overridden on
-# the make command line (AWK='nawk' for example).
-AWK = gawk
-AWK = mawk
-AWK = nawk
-AWK = one-true-awk
-AWK = awk # Crashes on SunOS 5.10 - use 'nawk'
-CPP = $(CC) -E # On SUN OS 5.10 if this causes problems use /lib/cpp
-
-MOVE = mv
-DELETE = rm -f
-ECHO = echo
-DFA_XTRA = # Put your configuration file here, see scripts/pnglibconf.dfa. Eg:
-# DFA_XTRA = pngusr.dfa
-
-# CPPFLAGS should contain the options to control the result,
-# but DEFS and CFLAGS are also supported here, override
-# as appropriate
-DFNFLAGS = $(DEFS) $(CPPFLAGS) $(CFLAGS)
-
-# srcdir is a defacto standard for the location of the source
-srcdir = .
-
-# The standard pnglibconf.h exists as scripts/pnglibconf.h.prebuilt,
-# copy this if the following doesn't work.
-pnglibconf.h: pnglibconf.dfn
- $(DELETE) $@ pnglibconf.c pnglibconf.out pnglibconf.tmp
- $(ECHO) '#include "pnglibconf.dfn"' >pnglibconf.c
- $(ECHO) "If '$(CC) -E' crashes try /lib/cpp (e.g. CPP='/lib/cpp')" >&2
- $(CPP) $(DFNFLAGS) pnglibconf.c >pnglibconf.out
- $(AWK) -f "$(srcdir)/scripts/dfn.awk" out="pnglibconf.tmp" pnglibconf.out 1>&2
- $(MOVE) pnglibconf.tmp $@
-
-pnglibconf.dfn: $(srcdir)/scripts/pnglibconf.dfa $(srcdir)/scripts/options.awk $(srcdir)/pngconf.h $(srcdir)/pngusr.dfa $(DFA_XTRA)
- $(DELETE) $@ pnglibconf.pre pnglibconf.tmp
- $(ECHO) "Calling $(AWK) from scripts/pnglibconf.mak" >&2
- $(ECHO) "If 'awk' crashes try a better awk (e.g. AWK='nawk')" >&2
- $(AWK) -f $(srcdir)/scripts/options.awk out="pnglibconf.pre"\
- version=search $(srcdir)/pngconf.h $(srcdir)/scripts/pnglibconf.dfa\
- $(srcdir)/pngusr.dfa $(DFA_XTRA) 1>&2
- $(AWK) -f $(srcdir)/scripts/options.awk out="pnglibconf.tmp" pnglibconf.pre 1>&2
- $(MOVE) pnglibconf.tmp $@
-
-clean-pnglibconf:
- $(DELETE) pnglibconf.h pnglibconf.c pnglibconf.out pnglibconf.pre \
- pnglibconf.dfn
-
-clean: clean-pnglibconf
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/pngwin.rc b/3rdparty/libpng/libpng-1.6.37/scripts/pngwin.rc
deleted file mode 100644
index 9335cbb..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/pngwin.rc
+++ /dev/null
@@ -1,112 +0,0 @@
-#define PNG_VERSION_INFO_ONLY
-
-#include <windows.h>
-#include "../png.h"
-
-#define _QUOTE(x) # x
-#define QUOTE(x) _QUOTE(x)
-
-#define PNG_LIBPNG_DLLFNAME "LIBPNG"
-
-/* Support deprecated PRIVATEBUILD macro */
-#if defined(PRIVATEBUILD) && !defined(PNG_USER_PRIVATEBUILD)
-# define PNG_USER_PRIVATEBUILD PRIVATEBUILD
-#endif
-
-#if defined(PNG_USER_DLLFNAME_POSTFIX) && !defined(PNG_USER_PRIVATEBUILD)
-# error "PNG_USER_PRIVATEBUILD must be defined as a string describing the\
- custom changes made to the library."
-#endif
-
-/* Prioritize PNG_USER_x over PNG_LIBPNG_x */
-#ifdef PNG_USER_DLLFNAME_POSTFIX
-# undef PNG_LIBPNG_DLLFNAME_POSTFIX
-# define PNG_LIBPNG_DLLFNAME_POSTFIX PNG_USER_DLLFNAME_POSTFIX
-#endif
-
-#ifdef PNG_USER_VERSIONINFO_COMMENTS
-# undef PNG_LIBPNG_VERSIONINFO_COMMENTS
-# define PNG_LIBPNG_VERSIONINFO_COMMENTS PNG_USER_VERSIONINFO_COMMENTS
-#endif
-
-#if defined(PNG_DEBUG) && (PNG_DEBUG > 0)
-# define VS_DEBUG VS_FF_DEBUG
-# ifndef PNG_LIBPNG_DLLFNAME_POSTFIX
-# define PNG_LIBPNG_DLLFNAME_POSTFIX "D"
-# endif /* PNG_LIBPNG_DLLFNAME_POSTFIX */
-# ifndef PNG_LIBPNG_VERSIONINFO_COMMENTS
-# define PNG_LIBPNG_VERSIONINFO_COMMENTS "PNG_DEBUG=" QUOTE(PNG_DEBUG)
-# endif /* PNG_LIBPNG_VERSIONINFO_COMMENTS */
-#else
-# define VS_DEBUG 0
-# ifndef PNG_LIBPNG_DLLFNAME_POSTFIX
-# define PNG_LIBPNG_DLLFNAME_POSTFIX
-# endif /* PNG_LIBPNG_DLLFNAME_POSTFIX */
-#endif /* defined(DEBUG)... */
-
-#ifdef PNG_USER_PRIVATEBUILD
-# define VS_PRIVATEBUILD VS_FF_PRIVATEBUILD
-#else
-# define VS_PRIVATEBUILD 0
-#endif /* PNG_USER_PRIVATEBUILD */
-
-#ifdef PNG_LIBPNG_SPECIALBUILD
-# define VS_SPECIALBUILD VS_FF_SPECIALBUILD
-#else
-# define VS_SPECIALBUILD 0
-#endif /* PNG_LIBPNG_BUILD_SPECIAL */
-
-#if ((PNG_LIBPNG_BUILD_BASE_TYPE & PNG_LIBPNG_RELEASE_STATUS_MASK) !=\
- PNG_LIBPNG_BUILD_STABLE)
-# define VS_PRERELEASE VS_FF_PRERELEASE
-# define VS_PATCHED 0
-#else
-# define VS_PRERELEASE 0
-# if (PNG_LIBPNG_BUILD_BASE_TYPE & PNG_LIBPNG_BUILD_PATCHED)
-# define VS_PATCHED VS_FF_PATCHED
-# else
-# define VS_PATCHED 0
-# endif
-#endif
-
-VS_VERSION_INFO VERSIONINFO
-FILEVERSION PNG_LIBPNG_VER_MAJOR, PNG_LIBPNG_VER_MINOR, PNG_LIBPNG_VER_RELEASE, PNG_LIBPNG_VER_BUILD
-PRODUCTVERSION PNG_LIBPNG_VER_MAJOR, PNG_LIBPNG_VER_MINOR, PNG_LIBPNG_VER_RELEASE, PNG_LIBPNG_VER_BUILD
-FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
-FILEFLAGS VS_DEBUG | VS_PRIVATEBUILD | VS_SPECIALBUILD | VS_PRERELEASE | VS_PATCHED
-FILEOS VOS__WINDOWS32
-FILETYPE VFT_DLL
-FILESUBTYPE VFT2_UNKNOWN
-BEGIN
- BLOCK "StringFileInfo"
- BEGIN BLOCK "040904E4" /* Language type = U.S English(0x0409) and Character Set = Windows, Multilingual(0x04E4) */
- BEGIN
-#ifdef PNG_LIBPNG_VERSIONINFO_COMMENTS
- VALUE "Comments", PNG_LIBPNG_VERSIONINFO_COMMENTS "\000"
-#endif /* PNG_LIBPNG_VERSIONINFO_COMMENTS */
-#ifdef PNG_USER_VERSIONINFO_COMPANYNAME
- VALUE "CompanyName", PNG_USER_VERSIONINFO_COMPANYNAME "\000"
-#endif /* PNG_USER_VERSIONINFO_COMPANYNAME */
- VALUE "FileDescription", "PNG image compression library\000"
- VALUE "FileVersion", PNG_LIBPNG_VER_STRING "\000"
- VALUE "InternalName", PNG_LIBPNG_DLLFNAME QUOTE(PNG_LIBPNG_VER_DLLNUM) PNG_LIBPNG_DLLFNAME_POSTFIX " (Windows 32 bit)\000"
- VALUE "LegalCopyright", "\251 1998-2009 Glenn Randers-Pehrson et al.\000"
-#ifdef PNG_USER_VERSIONINFO_LEGALTRADEMARKS
- VALUE "LegalTrademarks", PNG_USER_VERSIONINFO_LEGALTRADEMARKS "\000"
-#endif /* PNG_USER_VERSIONINFO_LEGALTRADEMARKS */
- VALUE "OriginalFilename", PNG_LIBPNG_DLLFNAME QUOTE(PNG_LIBPNG_VER_DLLNUM) PNG_LIBPNG_DLLFNAME_POSTFIX ".DLL\000"
-#ifdef PNG_USER_PRIVATEBUILD
- VALUE "PrivateBuild", PNG_USER_PRIVATEBUILD "\000"
-#endif /* PNG_USER_PRIVATEBUILD */
- VALUE "ProductName", "LibPNG\000"
- VALUE "ProductVersion", "1\000"
-#ifdef PNG_LIBPNG_SPECIALBUILD
- VALUE "SpecialBuild", PNG_LIBPNG_SPECIALBUILD "\000"
-#endif /* PNG_LIBPNG_SPECIALBUILD */
- END
- END
- BLOCK "VarFileInfo"
- BEGIN
- VALUE "Translation", 0x0409, 0x04E4
- END
-END
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/prefix.c b/3rdparty/libpng/libpng-1.6.37/scripts/prefix.c
deleted file mode 100644
index 8b604a0..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/prefix.c
+++ /dev/null
@@ -1,24 +0,0 @@
-
-/* prefix.c - generate an unprefixed symbol list
- *
- * Last changed in libpng version 1.6.16 [December 22, 2014]
- * Copyright (c) 2013-2014 Glenn Randers-Pehrson
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#define PNG_EXPORTA(ordinal, type, name, args, attributes)\
- PNG_DFN "@" name "@"
-
-/* The configuration information *before* the additional of symbol renames,
- * the list is the C name list; no symbol prefix.
- */
-#include "pnglibconf.out"
-
-PNG_DFN_START_SORT 1
-
-#include "../png.h"
-
-PNG_DFN_END_SORT
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/smakefile.ppc b/3rdparty/libpng/libpng-1.6.37/scripts/smakefile.ppc
deleted file mode 100644
index 2e7380b..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/smakefile.ppc
+++ /dev/null
@@ -1,34 +0,0 @@
-# Amiga powerUP (TM) Makefile
-# makefile for libpng and SAS C V6.58/7.00 PPC compiler
-# Copyright (C) 1998 by Andreas R. Kleinert
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-CC = scppc
-CFLAGS = NOSTKCHK NOSINT OPTIMIZE OPTGO OPTPEEP OPTINLOCAL OPTINL IDIR /zlib \
- OPTLOOP OPTRDEP=8 OPTDEP=8 OPTCOMP=8
-LIBNAME = libpng.a
-AR = ppc-amigaos-ar
-AR_FLAGS = cr
-RANLIB = ppc-amigaos-ranlib
-LDFLAGS = -r -o
-LDLIBS = ../zlib/libzip.a LIB:scppc.a
-LN = ppc-amigaos-ld
-RM = delete quiet
-MKDIR = makedir
-
-OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o pngread.o \
- pngerror.o pngpread.o pngwrite.o pngrtran.o pngwtran.o pngrio.o \
- pngwio.o pngmem.o
-
-all: $(LIBNAME) pngtest
-
-$(LIBNAME): $(OBJS)
- $(AR) $(AR_FLAGS) $@ $(OBJS)
- $(RANLIB) $@
-
-pngtest: pngtest.o $(LIBNAME)
- $(LN) $(LDFLAGS) pngtest LIB:c_ppc.o pngtest.o $(LIBNAME) $(LDLIBS) \
-LIB:end.o
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/sym.c b/3rdparty/libpng/libpng-1.6.37/scripts/sym.c
deleted file mode 100644
index ea9e4c5..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/sym.c
+++ /dev/null
@@ -1,15 +0,0 @@
-
-/* sym.c - define format of libpng.sym
- *
- * Last changed in libpng version 1.6.16 [December 22, 2014]
- * Copyright (c) 2011-2014 Glenn Randers-Pehrson
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#define PNG_EXPORTA(ordinal, type, name, args, attributes)\
- PNG_DFN "@" SYMBOL_PREFIX "@@" name "@"
-
-#include "../png.h"
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/symbols.c b/3rdparty/libpng/libpng-1.6.37/scripts/symbols.c
deleted file mode 100644
index 28b841d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/symbols.c
+++ /dev/null
@@ -1,58 +0,0 @@
-
-/* symbols.c - find all exported symbols
- *
- * Last changed in libpng version 1.6.16 [December 22, 2014]
- * Copyright (c) 2011-2014 Glenn Randers-Pehrson
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-/* NOTE: making 'symbols.chk' checks both that the exported
- * symbols in the library don't change and (implicitly) that
- * scripts/pnglibconf.h.prebuilt is as expected.
- * If scripts/pnglibconf.h.prebuilt is remade using
- * scripts/pnglibconf.dfa then this checks the .dfa file too.
- */
-
-#define PNG_EXPORTA(ordinal, type, name, args, attributes)\
- PNG_DFN "@" name "@ @@" ordinal "@"
-#define PNG_REMOVED(ordinal, type, name, args, attributes)\
- PNG_DFN "; @" name "@ @@" ordinal "@"
-#define PNG_EXPORT_LAST_ORDINAL(ordinal)\
- PNG_DFN "; @@" ordinal "@"
-
-/* Read the defaults, but use scripts/pnglibconf.h.prebuilt; the 'standard'
- * header file.
- */
-#include "pnglibconf.h.prebuilt"
-#include "../png.h"
-
-/* Some things are turned off by default. Turn these things
- * on here (by hand) to get the APIs they expose and validate
- * that no harm is done. This list is the set of options
- * defaulted to 'off' in scripts/pnglibconf.dfa
- *
- * Maintenance: if scripts/pnglibconf.dfa options are changed
- * from, or to, 'disabled' this needs updating!
- */
-#define PNG_BENIGN_ERRORS_SUPPORTED
-#define PNG_ERROR_NUMBERS_SUPPORTED
-#define PNG_READ_BIG_ENDIAN_SUPPORTED /* should do nothing! */
-#define PNG_INCH_CONVERSIONS_SUPPORTED
-#define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
-#define PNG_SET_OPTION_SUPPORTED
-
-#undef PNG_H
-#include "../png.h"
-
-/* Finally there are a couple of places where option support
- * actually changes the APIs revealed using a #if/#else/#endif
- * test in png.h, test these here.
- */
-#undef PNG_FLOATING_POINT_SUPPORTED /* Exposes 'fixed' APIs */
-#undef PNG_ERROR_TEXT_SUPPORTED /* Exposes unsupported APIs */
-
-#undef PNG_H
-#include "../png.h"
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/symbols.def b/3rdparty/libpng/libpng-1.6.37/scripts/symbols.def
deleted file mode 100644
index 82494bb..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/symbols.def
+++ /dev/null
@@ -1,255 +0,0 @@
-;--------------------------------------------------------------
-; LIBPNG symbol list as a Win32 DEF file
-; Contains all the symbols that can be exported from libpng
-;--------------------------------------------------------------
-LIBRARY
-
-EXPORTS
- png_access_version_number @1
- png_set_sig_bytes @2
- png_sig_cmp @3
- png_create_read_struct @4
- png_create_write_struct @5
- png_get_compression_buffer_size @6
- png_set_compression_buffer_size @7
- png_set_longjmp_fn @8
- png_longjmp @9
- png_reset_zstream @10
- png_create_read_struct_2 @11
- png_create_write_struct_2 @12
- png_write_sig @13
- png_write_chunk @14
- png_write_chunk_start @15
- png_write_chunk_data @16
- png_write_chunk_end @17
- png_create_info_struct @18
- png_info_init_3 @19
- png_write_info_before_PLTE @20
- png_write_info @21
- png_read_info @22
- png_convert_to_rfc1123 @23
- png_convert_from_struct_tm @24
- png_convert_from_time_t @25
- png_set_expand @26
- png_set_expand_gray_1_2_4_to_8 @27
- png_set_palette_to_rgb @28
- png_set_tRNS_to_alpha @29
- png_set_bgr @30
- png_set_gray_to_rgb @31
- png_set_rgb_to_gray @32
- png_set_rgb_to_gray_fixed @33
- png_get_rgb_to_gray_status @34
- png_build_grayscale_palette @35
- png_set_strip_alpha @36
- png_set_swap_alpha @37
- png_set_invert_alpha @38
- png_set_filler @39
- png_set_add_alpha @40
- png_set_swap @41
- png_set_packing @42
- png_set_packswap @43
- png_set_shift @44
- png_set_interlace_handling @45
- png_set_invert_mono @46
- png_set_background @47
- png_set_strip_16 @48
- png_set_quantize @49
- png_set_gamma @50
- png_set_flush @51
- png_write_flush @52
- png_start_read_image @53
- png_read_update_info @54
- png_read_rows @55
- png_read_row @56
- png_read_image @57
- png_write_row @58
- png_write_rows @59
- png_write_image @60
- png_write_end @61
- png_read_end @62
- png_destroy_info_struct @63
- png_destroy_read_struct @64
- png_destroy_write_struct @65
- png_set_crc_action @66
- png_set_filter @67
- png_set_filter_heuristics @68
- png_set_compression_level @69
- png_set_compression_mem_level @70
- png_set_compression_strategy @71
- png_set_compression_window_bits @72
- png_set_compression_method @73
- png_init_io @74
- png_set_error_fn @75
- png_get_error_ptr @76
- png_set_write_fn @77
- png_set_read_fn @78
- png_get_io_ptr @79
- png_set_read_status_fn @80
- png_set_write_status_fn @81
- png_set_mem_fn @82
- png_get_mem_ptr @83
- png_set_read_user_transform_fn @84
- png_set_write_user_transform_fn @85
- png_set_user_transform_info @86
- png_get_user_transform_ptr @87
- png_set_read_user_chunk_fn @88
- png_get_user_chunk_ptr @89
- png_set_progressive_read_fn @90
- png_get_progressive_ptr @91
- png_process_data @92
- png_progressive_combine_row @93
- png_malloc @94
- png_calloc @95
- png_malloc_warn @96
- png_free @97
- png_free_data @98
- png_data_freer @99
- png_malloc_default @100
- png_free_default @101
- png_error @102
- png_chunk_error @103
- png_err @104
- png_warning @105
- png_chunk_warning @106
- png_benign_error @107
- png_chunk_benign_error @108
- png_set_benign_errors @109
- png_get_valid @110
- png_get_rowbytes @111
- png_get_rows @112
- png_set_rows @113
- png_get_channels @114
- png_get_image_width @115
- png_get_image_height @116
- png_get_bit_depth @117
- png_get_color_type @118
- png_get_filter_type @119
- png_get_interlace_type @120
- png_get_compression_type @121
- png_get_pixels_per_meter @122
- png_get_x_pixels_per_meter @123
- png_get_y_pixels_per_meter @124
- png_get_pixel_aspect_ratio @125
- png_get_x_offset_pixels @126
- png_get_y_offset_pixels @127
- png_get_x_offset_microns @128
- png_get_y_offset_microns @129
- png_get_signature @130
- png_get_bKGD @131
- png_set_bKGD @132
- png_get_cHRM @133
- png_get_cHRM_fixed @134
- png_set_cHRM @135
- png_set_cHRM_fixed @136
- png_get_gAMA @137
- png_get_gAMA_fixed @138
- png_set_gAMA @139
- png_set_gAMA_fixed @140
- png_get_hIST @141
- png_set_hIST @142
- png_get_IHDR @143
- png_set_IHDR @144
- png_get_oFFs @145
- png_set_oFFs @146
- png_get_pCAL @147
- png_set_pCAL @148
- png_get_pHYs @149
- png_set_pHYs @150
- png_get_PLTE @151
- png_set_PLTE @152
- png_get_sBIT @153
- png_set_sBIT @154
- png_get_sRGB @155
- png_set_sRGB @156
- png_set_sRGB_gAMA_and_cHRM @157
- png_get_iCCP @158
- png_set_iCCP @159
- png_get_sPLT @160
- png_set_sPLT @161
- png_get_text @162
- png_set_text @163
- png_get_tIME @164
- png_set_tIME @165
- png_get_tRNS @166
- png_set_tRNS @167
- png_get_sCAL @168
- png_get_sCAL_s @169
- png_set_sCAL @170
- png_set_sCAL_s @171
- png_set_keep_unknown_chunks @172
- png_handle_as_unknown @173
- png_set_unknown_chunks @174
- png_set_unknown_chunk_location @175
- png_get_unknown_chunks @176
- png_set_invalid @177
- png_read_png @178
- png_write_png @179
- png_get_copyright @180
- png_get_header_ver @181
- png_get_header_version @182
- png_get_libpng_ver @183
- png_permit_mng_features @184
- png_set_strip_error_numbers @185
- png_set_user_limits @186
- png_get_user_width_max @187
- png_get_user_height_max @188
- png_set_chunk_cache_max @189
- png_get_chunk_cache_max @190
- png_set_chunk_malloc_max @191
- png_get_chunk_malloc_max @192
- png_get_pixels_per_inch @193
- png_get_x_pixels_per_inch @194
- png_get_y_pixels_per_inch @195
- png_get_x_offset_inches @196
- png_get_y_offset_inches @197
- png_get_pHYs_dpi @198
- png_get_io_state @199
- png_get_uint_32 @201
- png_get_uint_16 @202
- png_get_int_32 @203
- png_get_uint_31 @204
- png_save_uint_32 @205
- png_save_int_32 @206
- png_save_uint_16 @207
- png_set_gamma_fixed @208
- png_set_filter_heuristics_fixed @209
- png_get_pixel_aspect_ratio_fixed @210
- png_get_x_offset_inches_fixed @211
- png_get_y_offset_inches_fixed @212
- png_set_sCAL_fixed @213
- png_get_sCAL_fixed @214
- png_set_background_fixed @215
- png_get_io_chunk_type @216
- png_get_current_row_number @217
- png_get_current_pass_number @218
- png_process_data_pause @219
- png_process_data_skip @220
- png_set_expand_16 @221
- png_set_text_compression_level @222
- png_set_text_compression_mem_level @223
- png_set_text_compression_strategy @224
- png_set_text_compression_window_bits @225
- png_set_text_compression_method @226
- png_set_alpha_mode @227
- png_set_alpha_mode_fixed @228
- png_set_scale_16 @229
- png_get_cHRM_XYZ @230
- png_get_cHRM_XYZ_fixed @231
- png_set_cHRM_XYZ @232
- png_set_cHRM_XYZ_fixed @233
- png_image_begin_read_from_file @234
- png_image_begin_read_from_stdio @235
- png_image_begin_read_from_memory @236
- png_image_finish_read @237
- png_image_free @238
- png_image_write_to_file @239
- png_image_write_to_stdio @240
- png_convert_to_rfc1123_buffer @241
- png_set_check_for_invalid_index @242
- png_get_palette_max @243
- png_set_option @244
- png_image_write_to_memory @245
- png_get_eXIf @246
- png_set_eXIf @247
- png_get_eXIf_1 @248
- png_set_eXIf_1 @249
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/test.cmake.in b/3rdparty/libpng/libpng-1.6.37/scripts/test.cmake.in
deleted file mode 100644
index fa6a889..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/test.cmake.in
+++ /dev/null
@@ -1,31 +0,0 @@
-# test.cmake.in
-
-# Copyright (C) 2016 Glenn Randers-Pehrson
-# Written by Roger Leigh, 2016
-
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-set(TEST_OPTIONS "@TEST_OPTIONS@")
-set(TEST_FILES "@TEST_FILES@")
-
-foreach(file ${TEST_FILES})
- file(TO_NATIVE_PATH "${file}" native_file)
- list(APPEND NATIVE_TEST_FILES "${native_file}")
-endforeach()
-
-# Add the directory containing libpng to the PATH (Windows only)
-if(WIN32)
- get_filename_component(LIBPNG_DIR "${LIBPNG}" PATH)
- file(TO_NATIVE_PATH "${LIBPNG_DIR}" LIBPNG_DIR)
- set(ENV{PATH} "${LIBPNG_DIR};$ENV{PATH}")
-endif()
-
-execute_process(COMMAND "${CMAKE_COMMAND}" -E echo "Running ${TEST_COMMAND}" ${TEST_OPTIONS} ${NATIVE_TEST_FILES})
-
-execute_process(COMMAND "${TEST_COMMAND}" ${TEST_OPTIONS} ${NATIVE_TEST_FILES}
- RESULT_VARIABLE TEST_STATUS)
-if(TEST_STATUS)
- message(FATAL_ERROR "Returned failed status ${TEST_STATUS}!")
-endif()
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/vers.c b/3rdparty/libpng/libpng-1.6.37/scripts/vers.c
deleted file mode 100644
index de73197..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/vers.c
+++ /dev/null
@@ -1,19 +0,0 @@
-
-/* vers.c - define format of libpng.vers
- *
- * Last changed in libpng version 1.6.16 [December 22, 2014]
- * Copyright (c) 2011-2014 Glenn Randers-Pehrson
- *
- * This code is released under the libpng license.
- * For conditions of distribution and use, see the disclaimer
- * and license in png.h
- */
-
-#define PNG_EXPORTA(ordinal, type, name, args, attributes)\
- PNG_DFN " @" SYMBOL_PREFIX "@@" name "@;"
-
-PNG_DFN "@" PNGLIB_LIBNAME "@ {global:"
-
-#include "../png.h"
-
-PNG_DFN "local: *; };"
diff --git a/3rdparty/libpng/libpng-1.6.37/scripts/vers.out b/3rdparty/libpng/libpng-1.6.37/scripts/vers.out
deleted file mode 100644
index 9580cb1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/scripts/vers.out
+++ /dev/null
@@ -1,248 +0,0 @@
-PNG16_0 {global:
- png_access_version_number;
- png_set_sig_bytes;
- png_sig_cmp;
- png_create_read_struct;
- png_create_write_struct;
- png_get_compression_buffer_size;
- png_set_compression_buffer_size;
- png_set_longjmp_fn;
- png_longjmp;
- png_reset_zstream;
- png_create_read_struct_2;
- png_create_write_struct_2;
- png_write_sig;
- png_write_chunk;
- png_write_chunk_start;
- png_write_chunk_data;
- png_write_chunk_end;
- png_create_info_struct;
- png_info_init_3;
- png_write_info_before_PLTE;
- png_write_info;
- png_read_info;
- png_convert_to_rfc1123;
- png_convert_to_rfc1123_buffer;
- png_convert_from_struct_tm;
- png_convert_from_time_t;
- png_set_expand;
- png_set_expand_gray_1_2_4_to_8;
- png_set_palette_to_rgb;
- png_set_tRNS_to_alpha;
- png_set_expand_16;
- png_set_bgr;
- png_set_gray_to_rgb;
- png_set_rgb_to_gray;
- png_set_rgb_to_gray_fixed;
- png_get_rgb_to_gray_status;
- png_build_grayscale_palette;
- png_set_alpha_mode;
- png_set_alpha_mode_fixed;
- png_set_strip_alpha;
- png_set_swap_alpha;
- png_set_invert_alpha;
- png_set_filler;
- png_set_add_alpha;
- png_set_swap;
- png_set_packing;
- png_set_packswap;
- png_set_shift;
- png_set_interlace_handling;
- png_set_invert_mono;
- png_set_background;
- png_set_background_fixed;
- png_set_scale_16;
- png_set_strip_16;
- png_set_quantize;
- png_set_gamma;
- png_set_gamma_fixed;
- png_set_flush;
- png_write_flush;
- png_start_read_image;
- png_read_update_info;
- png_read_rows;
- png_read_row;
- png_read_image;
- png_write_row;
- png_write_rows;
- png_write_image;
- png_write_end;
- png_read_end;
- png_destroy_info_struct;
- png_destroy_read_struct;
- png_destroy_write_struct;
- png_set_crc_action;
- png_set_filter;
- png_set_filter_heuristics;
- png_set_filter_heuristics_fixed;
- png_set_compression_level;
- png_set_compression_mem_level;
- png_set_compression_strategy;
- png_set_compression_window_bits;
- png_set_compression_method;
- png_set_text_compression_level;
- png_set_text_compression_mem_level;
- png_set_text_compression_strategy;
- png_set_text_compression_window_bits;
- png_set_text_compression_method;
- png_init_io;
- png_set_error_fn;
- png_get_error_ptr;
- png_set_write_fn;
- png_set_read_fn;
- png_get_io_ptr;
- png_set_read_status_fn;
- png_set_write_status_fn;
- png_set_mem_fn;
- png_get_mem_ptr;
- png_set_read_user_transform_fn;
- png_set_write_user_transform_fn;
- png_set_user_transform_info;
- png_get_user_transform_ptr;
- png_get_current_row_number;
- png_get_current_pass_number;
- png_set_read_user_chunk_fn;
- png_get_user_chunk_ptr;
- png_set_progressive_read_fn;
- png_get_progressive_ptr;
- png_process_data;
- png_process_data_pause;
- png_process_data_skip;
- png_progressive_combine_row;
- png_malloc;
- png_calloc;
- png_malloc_warn;
- png_free;
- png_free_data;
- png_data_freer;
- png_malloc_default;
- png_free_default;
- png_error;
- png_chunk_error;
- png_warning;
- png_chunk_warning;
- png_benign_error;
- png_chunk_benign_error;
- png_set_benign_errors;
- png_get_valid;
- png_get_rowbytes;
- png_get_rows;
- png_set_rows;
- png_get_channels;
- png_get_image_width;
- png_get_image_height;
- png_get_bit_depth;
- png_get_color_type;
- png_get_filter_type;
- png_get_interlace_type;
- png_get_compression_type;
- png_get_pixels_per_meter;
- png_get_x_pixels_per_meter;
- png_get_y_pixels_per_meter;
- png_get_pixel_aspect_ratio;
- png_get_pixel_aspect_ratio_fixed;
- png_get_x_offset_pixels;
- png_get_y_offset_pixels;
- png_get_x_offset_microns;
- png_get_y_offset_microns;
- png_get_signature;
- png_get_bKGD;
- png_set_bKGD;
- png_get_cHRM;
- png_get_cHRM_XYZ;
- png_get_cHRM_fixed;
- png_get_cHRM_XYZ_fixed;
- png_set_cHRM;
- png_set_cHRM_XYZ;
- png_set_cHRM_fixed;
- png_set_cHRM_XYZ_fixed;
- png_get_eXIf;
- png_set_eXIf;
- png_get_eXIf_1;
- png_set_eXIf_1;
- png_get_gAMA;
- png_get_gAMA_fixed;
- png_set_gAMA;
- png_set_gAMA_fixed;
- png_get_hIST;
- png_set_hIST;
- png_get_IHDR;
- png_set_IHDR;
- png_get_oFFs;
- png_set_oFFs;
- png_get_pCAL;
- png_set_pCAL;
- png_get_pHYs;
- png_set_pHYs;
- png_get_PLTE;
- png_set_PLTE;
- png_get_sBIT;
- png_set_sBIT;
- png_get_sRGB;
- png_set_sRGB;
- png_set_sRGB_gAMA_and_cHRM;
- png_get_iCCP;
- png_set_iCCP;
- png_get_sPLT;
- png_set_sPLT;
- png_get_text;
- png_set_text;
- png_get_tIME;
- png_set_tIME;
- png_get_tRNS;
- png_set_tRNS;
- png_get_sCAL;
- png_get_sCAL_fixed;
- png_get_sCAL_s;
- png_set_sCAL;
- png_set_sCAL_fixed;
- png_set_sCAL_s;
- png_set_keep_unknown_chunks;
- png_handle_as_unknown;
- png_set_unknown_chunks;
- png_set_unknown_chunk_location;
- png_get_unknown_chunks;
- png_set_invalid;
- png_read_png;
- png_write_png;
- png_get_copyright;
- png_get_header_ver;
- png_get_header_version;
- png_get_libpng_ver;
- png_permit_mng_features;
- png_set_user_limits;
- png_get_user_width_max;
- png_get_user_height_max;
- png_set_chunk_cache_max;
- png_get_chunk_cache_max;
- png_set_chunk_malloc_max;
- png_get_chunk_malloc_max;
- png_get_pixels_per_inch;
- png_get_x_pixels_per_inch;
- png_get_y_pixels_per_inch;
- png_get_x_offset_inches;
- png_get_x_offset_inches_fixed;
- png_get_y_offset_inches;
- png_get_y_offset_inches_fixed;
- png_get_pHYs_dpi;
- png_get_io_state;
- png_get_io_chunk_type;
- png_get_uint_32;
- png_get_uint_16;
- png_get_int_32;
- png_get_uint_31;
- png_save_uint_32;
- png_save_int_32;
- png_save_uint_16;
- png_set_check_for_invalid_index;
- png_get_palette_max;
- png_image_begin_read_from_file;
- png_image_begin_read_from_stdio;
- png_image_begin_read_from_memory;
- png_image_finish_read;
- png_image_free;
- png_image_write_to_file;
- png_image_write_to_stdio;
- png_image_write_to_memory;
- png_set_option;
-local: *; };
diff --git a/3rdparty/libpng/libpng-1.6.37/stamp-h1 b/3rdparty/libpng/libpng-1.6.37/stamp-h1
deleted file mode 100644
index 4547fe1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/stamp-h1
+++ /dev/null
@@ -1 +0,0 @@
-timestamp for config.h
diff --git a/3rdparty/libpng/libpng-1.6.37/test-driver b/3rdparty/libpng/libpng-1.6.37/test-driver
deleted file mode 100755
index b8521a4..0000000
--- a/3rdparty/libpng/libpng-1.6.37/test-driver
+++ /dev/null
@@ -1,148 +0,0 @@
-#! /bin/sh
-# test-driver - basic testsuite driver script.
-
-scriptversion=2018-03-07.03; # UTC
-
-# Copyright (C) 2011-2018 Free Software Foundation, Inc.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <https://www.gnu.org/licenses/>.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# This file is maintained in Automake, please report
-# bugs to <bug-automake@gnu.org> or send patches to
-# <automake-patches@gnu.org>.
-
-# Make unconditional expansion of undefined variables an error. This
-# helps a lot in preventing typo-related bugs.
-set -u
-
-usage_error ()
-{
- echo "$0: $*" >&2
- print_usage >&2
- exit 2
-}
-
-print_usage ()
-{
- cat <<END
-Usage:
- test-driver --test-name=NAME --log-file=PATH --trs-file=PATH
- [--expect-failure={yes|no}] [--color-tests={yes|no}]
- [--enable-hard-errors={yes|no}] [--]
- TEST-SCRIPT [TEST-SCRIPT-ARGUMENTS]
-The '--test-name', '--log-file' and '--trs-file' options are mandatory.
-END
-}
-
-test_name= # Used for reporting.
-log_file= # Where to save the output of the test script.
-trs_file= # Where to save the metadata of the test run.
-expect_failure=no
-color_tests=no
-enable_hard_errors=yes
-while test $# -gt 0; do
- case $1 in
- --help) print_usage; exit $?;;
- --version) echo "test-driver $scriptversion"; exit $?;;
- --test-name) test_name=$2; shift;;
- --log-file) log_file=$2; shift;;
- --trs-file) trs_file=$2; shift;;
- --color-tests) color_tests=$2; shift;;
- --expect-failure) expect_failure=$2; shift;;
- --enable-hard-errors) enable_hard_errors=$2; shift;;
- --) shift; break;;
- -*) usage_error "invalid option: '$1'";;
- *) break;;
- esac
- shift
-done
-
-missing_opts=
-test x"$test_name" = x && missing_opts="$missing_opts --test-name"
-test x"$log_file" = x && missing_opts="$missing_opts --log-file"
-test x"$trs_file" = x && missing_opts="$missing_opts --trs-file"
-if test x"$missing_opts" != x; then
- usage_error "the following mandatory options are missing:$missing_opts"
-fi
-
-if test $# -eq 0; then
- usage_error "missing argument"
-fi
-
-if test $color_tests = yes; then
- # Keep this in sync with 'lib/am/check.am:$(am__tty_colors)'.
- red='[0;31m' # Red.
- grn='[0;32m' # Green.
- lgn='[1;32m' # Light green.
- blu='[1;34m' # Blue.
- mgn='[0;35m' # Magenta.
- std='[m' # No color.
-else
- red= grn= lgn= blu= mgn= std=
-fi
-
-do_exit='rm -f $log_file $trs_file; (exit $st); exit $st'
-trap "st=129; $do_exit" 1
-trap "st=130; $do_exit" 2
-trap "st=141; $do_exit" 13
-trap "st=143; $do_exit" 15
-
-# Test script is run here.
-"$@" >$log_file 2>&1
-estatus=$?
-
-if test $enable_hard_errors = no && test $estatus -eq 99; then
- tweaked_estatus=1
-else
- tweaked_estatus=$estatus
-fi
-
-case $tweaked_estatus:$expect_failure in
- 0:yes) col=$red res=XPASS recheck=yes gcopy=yes;;
- 0:*) col=$grn res=PASS recheck=no gcopy=no;;
- 77:*) col=$blu res=SKIP recheck=no gcopy=yes;;
- 99:*) col=$mgn res=ERROR recheck=yes gcopy=yes;;
- *:yes) col=$lgn res=XFAIL recheck=no gcopy=yes;;
- *:*) col=$red res=FAIL recheck=yes gcopy=yes;;
-esac
-
-# Report the test outcome and exit status in the logs, so that one can
-# know whether the test passed or failed simply by looking at the '.log'
-# file, without the need of also peaking into the corresponding '.trs'
-# file (automake bug#11814).
-echo "$res $test_name (exit status: $estatus)" >>$log_file
-
-# Report outcome to console.
-echo "${col}${res}${std}: $test_name"
-
-# Register the test result, and other relevant metadata.
-echo ":test-result: $res" > $trs_file
-echo ":global-test-result: $res" >> $trs_file
-echo ":recheck: $recheck" >> $trs_file
-echo ":copy-in-global-log: $gcopy" >> $trs_file
-
-# Local Variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
-# time-stamp-end: "; # UTC"
-# End:
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngimage-full b/3rdparty/libpng/libpng-1.6.37/tests/pngimage-full
deleted file mode 100755
index 1198ed0..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngimage-full
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngimage --exhaustive --list-combos --log "${srcdir}/contrib/pngsuite/"*.png
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngimage-quick b/3rdparty/libpng/libpng-1.6.37/tests/pngimage-quick
deleted file mode 100755
index 328dc27..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngimage-quick
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngimage --list-combos --log "${srcdir}/contrib/pngsuite/"*.png
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngstest b/3rdparty/libpng/libpng-1.6.37/tests/pngstest
deleted file mode 100755
index 9d1b776..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngstest
+++ /dev/null
@@ -1,54 +0,0 @@
-#!/bin/sh
-#
-# Usage:
-#
-# tests/pngstest gamma alpha
-#
-# Run ./pngstest on the PNG files in $srcdir/contrib/testpngs which have the
-# given gamma and opacity:
-#
-# gamma: one of; linear, 1.8, sRGB, none.
-# alpha: one of; opaque, tRNS, alpha, none. 'none' is equivalent to !alpha
-#
-# NOTE: the temporary files pngstest generates have the base name gamma-alpha to
-# avoid issues with make -j
-#
-gamma="$1"
-shift
-alpha="$1"
-shift
-args=
-LC_ALL="C" # fix glob sort order to ASCII:
-for f in "${srcdir}/contrib/testpngs/"*.png
-do
- g=
- case "$f" in
- *-linear[.-]*)
- test "$gamma" = "linear" && g="$f";;
-
- *-sRGB[.-]*)
- test "$gamma" = "sRGB" && g="$f";;
-
- *-1.8[.-]*)
- test "$gamma" = "1.8" && g="$f";;
-
- *)
- test "$gamma" = "none" && g="$f";;
- esac
-
- case "$g" in
- "")
- :;;
-
- *-alpha[-.]*)
- test "$alpha" = "alpha" && args="$args $g";;
-
- *-tRNS[-.]*)
- test "$alpha" = "tRNS" -o "$alpha" = "none" && args="$args $g";;
-
- *)
- test "$alpha" = "opaque" -o "$alpha" = "none" && args="$args $g";;
- esac
-done
-# This only works if the arguments don't contain spaces; they don't.
-exec ./pngstest --tmpfile "${gamma}-${alpha}-" --log ${1+"$@"} $args
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-1.8 b/3rdparty/libpng/libpng-1.6.37/tests/pngstest-1.8
deleted file mode 100755
index b2ec21b..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-1.8
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec "${srcdir}/tests/pngstest" 1.8 none
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-1.8-alpha b/3rdparty/libpng/libpng-1.6.37/tests/pngstest-1.8-alpha
deleted file mode 100755
index d00596d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-1.8-alpha
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec "${srcdir}/tests/pngstest" 1.8 alpha
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-linear b/3rdparty/libpng/libpng-1.6.37/tests/pngstest-linear
deleted file mode 100755
index 4a5b3fe..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-linear
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec "${srcdir}/tests/pngstest" linear none
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-linear-alpha b/3rdparty/libpng/libpng-1.6.37/tests/pngstest-linear-alpha
deleted file mode 100755
index 4114210..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-linear-alpha
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec "${srcdir}/tests/pngstest" linear alpha
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-none b/3rdparty/libpng/libpng-1.6.37/tests/pngstest-none
deleted file mode 100755
index 09ad740..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-none
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec "${srcdir}/tests/pngstest" none none
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-none-alpha b/3rdparty/libpng/libpng-1.6.37/tests/pngstest-none-alpha
deleted file mode 100755
index af6083f..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-none-alpha
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec "${srcdir}/tests/pngstest" none alpha
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-sRGB b/3rdparty/libpng/libpng-1.6.37/tests/pngstest-sRGB
deleted file mode 100755
index d846081..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-sRGB
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec "${srcdir}/tests/pngstest" sRGB none
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-sRGB-alpha b/3rdparty/libpng/libpng-1.6.37/tests/pngstest-sRGB-alpha
deleted file mode 100755
index f1e57d3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngstest-sRGB-alpha
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec "${srcdir}/tests/pngstest" sRGB alpha
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngtest b/3rdparty/libpng/libpng-1.6.37/tests/pngtest
deleted file mode 100755
index 813973b..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngtest
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngtest --strict ${srcdir}/pngtest.png
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngtest-badpngs b/3rdparty/libpng/libpng-1.6.37/tests/pngtest-badpngs
deleted file mode 100755
index 7777523..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngtest-badpngs
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/sh
-
-# various crashers
-# using --relaxed because some come from fuzzers that don't maintain CRC's
-
-./pngtest --relaxed ${srcdir}/contrib/testpngs/crashers/badcrc.png
-./pngtest --relaxed ${srcdir}/contrib/testpngs/crashers/badadler.png
-./pngtest --xfail ${srcdir}/contrib/testpngs/crashers/bad_iCCP.png
-./pngtest --xfail ${srcdir}/contrib/testpngs/crashers/empty_ancillary_chunks.png
-./pngtest --xfail ${srcdir}/contrib/testpngs/crashers/huge_*_chunk.png \
- ${srcdir}/contrib/testpngs/crashers/huge_*safe_to_copy.png
-
-exec ./pngtest --xfail ${srcdir}/contrib/testpngs/crashers/huge_IDAT.png
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-IDAT b/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-IDAT
deleted file mode 100755
index 8e7281a..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-IDAT
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngunknown --strict default=discard IDAT=save "${srcdir}/pngtest.png"
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-discard b/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-discard
deleted file mode 100755
index c96dab3..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-discard
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngunknown --strict default=discard "${srcdir}/pngtest.png"
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-if-safe b/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-if-safe
deleted file mode 100755
index 31a4954..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-if-safe
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngunknown --strict default=if-safe "${srcdir}/pngtest.png"
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-sAPI b/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-sAPI
deleted file mode 100755
index 88a1f6b..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-sAPI
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngunknown --strict bKGD=save cHRM=save gAMA=save all=discard iCCP=save sBIT=save sRGB=save eXIf=save "${srcdir}/pngtest.png"
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-sTER b/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-sTER
deleted file mode 100755
index 59c5ecd..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-sTER
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngunknown --strict sTER=if-safe "${srcdir}/pngtest.png"
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-save b/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-save
deleted file mode 100755
index 21412c4..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-save
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngunknown --strict default=save "${srcdir}/pngtest.png"
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-vpAg b/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-vpAg
deleted file mode 100755
index 04f07b6..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngunknown-vpAg
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngunknown --strict vpAg=if-safe "${srcdir}/pngtest.png"
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-16-to-8 b/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-16-to-8
deleted file mode 100755
index 074945d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-16-to-8
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngvalid --strict --gamma-16-to-8
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-alpha-mode b/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-alpha-mode
deleted file mode 100755
index b16e8ab..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-alpha-mode
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngvalid --strict --gamma-alpha-mode
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-background b/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-background
deleted file mode 100755
index 3dbf58d..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-background
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngvalid --strict --gamma-background
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-expand16-alpha-mode b/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-expand16-alpha-mode
deleted file mode 100755
index 4fa10bd..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-expand16-alpha-mode
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngvalid --strict --gamma-alpha-mode --expand16
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-expand16-background b/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-expand16-background
deleted file mode 100755
index ad9a917..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-expand16-background
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngvalid --strict --gamma-background --expand16
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-expand16-transform b/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-expand16-transform
deleted file mode 100755
index 5fd1f28..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-expand16-transform
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngvalid --strict --gamma-transform --expand16
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-sbit b/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-sbit
deleted file mode 100755
index 6ca08e9..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-sbit
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngvalid --strict --gamma-sbit
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-threshold b/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-threshold
deleted file mode 100755
index 3fe4edf..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-threshold
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngvalid --strict --gamma-threshold
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-transform b/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-transform
deleted file mode 100755
index 3fa62c6..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-gamma-transform
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngvalid --strict --gamma-transform
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-progressive-interlace-standard b/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-progressive-interlace-standard
deleted file mode 100755
index a8cdf9e..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-progressive-interlace-standard
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngvalid --strict --standard --progressive-read --interlace
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-progressive-size b/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-progressive-size
deleted file mode 100755
index 868d6dc..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-progressive-size
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngvalid --strict --size --progressive-read
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-progressive-standard b/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-progressive-standard
deleted file mode 100755
index bf7e5c1..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-progressive-standard
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngvalid --strict --standard --progressive-read
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-standard b/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-standard
deleted file mode 100755
index a89b884..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-standard
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngvalid --strict --standard
diff --git a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-transform b/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-transform
deleted file mode 100755
index c7536ae..0000000
--- a/3rdparty/libpng/libpng-1.6.37/tests/pngvalid-transform
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec ./pngvalid --strict --transform
--
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