#!/bin/bash

set -e

OPENCV_SRC=opencv-3.4.6

LYFTP_SRC=ftp://master.iot-yun.club/src/

CROSSTOOL=/opt/crosstool/cortex-a7/bin/arm-linux-gnueabi-

TOOLCHAIN=cortexa7.toolchain.cmake

JOBS=`cat /proc/cpuinfo  |  grep processor | wc -l`

if [ ! -d $OPENCV_SRC ] ; then
    if [ ! -f $OPENCV_SRC.zip ] ; then
        wget $LYFTP_SRC/$OPENCV_SRC.zip
    fi

    unzip $OPENCV_SRC.zip
fi

cd $OPENCV_SRC

rm -f platforms/linux/${TOOLCHAIN} 
cat >platforms/linux/${TOOLCHAIN} <<EOF

set(GCC_COMPILER_VERSION "" CACHE STRING "GCC Compiler version")
set(GNU_MACHINE "${CROSSTOOL%*-}" CACHE STRING "GNU compiler triple")
include("\${CMAKE_CURRENT_LIST_DIR}/arm.toolchain.cmake")

EOF

mkdir -p release
cd release

cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=`pwd`/../../../install -DCMAKE_TOOLCHAIN_FILE="../platforms/linux/${TOOLCHAIN}" -DSOFTFP=ON -DENABLE_PROFILING=OFF -DWITH_OPENCL=OFF -DWITH_TBB=ON  -DWITH_V4L=ON -DHAVE_CAMV4L2=ON -DBUILD_TESTS=OFF -DINSTALL_PYTHON_EXAMPLES=OFF -DBUILD_EXAMPLES=OFF -DWITH_FFMPEG=ON -DHAVE_FFMPEG=ON -DBUILD_opencv_js=OFF -DENABLE_NEON=OFF -DENABLE_VFPV3=OFF ../

make && make install