|
/* 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 */
|
