mingw(gcc)编译openjpeg

10km

发布于 2019-05-25 22:40:34

1.8K0

发布于 2019-05-25 22:40:34

openjpeg是C语言实现的开源jpeg2000图像格式的编码/解码器，github上有编译好的linux/windows二进制文件,目前最新的版本是2.1(https://github.com/uclouvain/openjpeg/releases/tag/version.2.1)

但官方提供的二进制文件只提供了dll,如果想要将代码静态编译到项目中需要自己下载源代码编译。

下载

原代码下载:https://github.com/uclouvain/openjpeg/archive/version.2.1.zip

编译环境要求

作者的编译环境是win7 x64平台，编译器是MinGW5.2.0，cmake版本是3.1.0，准备好以上环境就可以开始代码编译了。

如何安装mingw和cmake,网上有很多教程讲得很详细，这里不再细说。

编译

先将源码包解压到本地硬盘

D:\os.package\cpp\openjpeg\openjpeg-version.2.1

然后创建build目录

D:\os.package\cpp\openjpeg\openjpeg-version.2.1>cd D:\os.package\cpp\openjpeg D:\os.package\cpp\openjpeg>mkdir openjpeg-version.2.1.prj D:\os.package\cpp\openjpeg\openjpeg-version.2.1.prj>cmake -G “Eclipse CDT4 - MinGW Makefiles” -DBUILD_SHARED_LIBS=OFF -DCMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=j:/openjpeg-windows-gcc-x86_64 -DCMAKE_GNUtoMS=ON ..\openjpeg-ver sion.2.1 – The C compiler identification is GNU 5.2.0 – Could not determine Eclipse version, assuming at least 3.6 (Helios). Adjust C MAKE_ECLIPSE_VERSION if this is wrong. – Check for working C compiler: P:/MinGW/mingw64/bin/gcc.exe – Check for working C compiler: P:/MinGW/mingw64/bin/gcc.exe – works – Detecting C compiler ABI info – Detecting C compiler ABI info - done – Detecting C compile features – Detecting C compile features - done – Check if the system is big endian – Searching 16 bit integer – Looking for sys/types.h – Looking for sys/types.h - found – Looking for stdint.h – Looking for stdint.h - found – Looking for stddef.h – Looking for stddef.h - found – Check size of unsigned short – Check size of unsigned short - done – Using unsigned short – Check if the system is big endian - little endian – Looking for string.h – Looking for string.h - found – Looking for memory.h – Looking for memory.h - found – Looking for stdlib.h – Looking for stdlib.h - found – Looking for stdio.h – Looking for stdio.h - found – Looking for math.h – Looking for math.h - found – Looking for float.h – Looking for float.h - found – Looking for time.h – Looking for time.h - found – Looking for stdarg.h – Looking for stdarg.h - found – Looking for ctype.h – Looking for ctype.h - found – Looking for assert.h – Looking for assert.h - found – Looking for stdint.h – Looking for stdint.h - found – Looking for inttypes.h – Looking for inttypes.h - found – Looking for strings.h – Looking for strings.h - found – Looking for sys/stat.h – Looking for sys/stat.h - found – Looking for unistd.h – Looking for unistd.h - found – Checking for 64-bit off_t – Checking for 64-bit off_t - present with _FILE_OFFSET_BITS=64 – Checking for fseeko/ftello – Checking for fseeko/ftello - present – Large File support - found – Could NOT find ZLIB (missing: ZLIB_INCLUDE_DIR) – Z lib not found, activate BUILD_THIRDPARTY if you want build it (necessary to build libPNG) – Could NOT find TIFF (missing: TIFF_LIBRARY TIFF_INCLUDE_DIR) – TIFF lib not found, activate BUILD_THIRDPARTY if you want build it – Could NOT find LCMS2 (missing: LCMS2_LIBRARY LCMS2_INCLUDE_DIR) – Could NOT find LCMS (missing: LCMS_LIBRARY LCMS_INCLUDE_DIR) – LCMS2 or LCMS lib not found, activate BUILD_THIRDPARTY if you want build it – Configuring done – Generating done – Build files have been written to: D:/os.package/cpp/openjpeg/openjpeg-version .2.1.prj

在上面的执行cmake创建makefile时，定义了几个参数，含义如下：

-G “Eclipse CDT4 - MinGW Makefiles”

生成eclipse工程文件和MinGW格式的Makefiles

-DBUILD_SHARED_LIBS=OFF

指定创建静态链接库.lib，默认是ON,生成dll

openjpeg提供的CMakeList.txt不能同时创建静态库和动态库，所以你既想要静态库，又想到动态库的时候，就得修改这个参数，编译两次。当生成动态库的时候，还可以参加参数 -DCMAKE_GNUtoMS=ON 生成MSVC格式的导入库(import library .lib文件)。这样MSVC就可以直接使用GCC编译的动态库了。参见我之前的博客《cmake:让mingw(gcc)生成MSVC可用的dll(.lib)》

-DCMAKE_BUILD_TYPE=RELEASE

就是生成RELEASE，这个参数即使不定义，默认也是生成 RELEASE版本

-DCMAKE_INSTALL_PREFIX=j:/openjpeg-windows-gcc-x86

这个参数指定在执行make install时的安装路径。如果不指定默认是安装到”C:/Program Files (x86)/OPENJPEG”。

然后执行make

D:\os.package\cpp\openjpeg\openjpeg-version.2.1.prj>make Scanning dependencies of target openjp2 2% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/bio.c.obj 5% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/cio.c.obj 8% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/dwt.c.obj 11% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/event.c.obj 14% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/image.c.obj 17% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/invert.c.obj 20% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/j2k.c.obj 22% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/jp2.c.obj 25% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/mct.c.obj 28% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/mqc.c.obj 31% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/openjpeg.c.obj 34% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/opj_clock.c.obj 37% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/pi.c.obj 40% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/raw.c.obj 42% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/t1.c.obj 45% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/t2.c.obj 48% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/tcd.c.obj 51% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/tgt.c.obj 54% Building C object src/lib/openjp2/CMakeFiles/openjp2.dir/function_list.c.obj Linking C static library ……\bin\libopenjp2.a 54% Built target openjp2 Scanning dependencies of target t1_generate_luts 57% Building C object src/lib/openjp2/CMakeFiles/t1_generate_luts.dir/t1_generate_luts.c.obj Linking C executable ……\bin\t1_generate_luts.exe 57% Built target t1_generate_luts Scanning dependencies of target opj_compress 60% Building C object src/bin/jp2/CMakeFiles/opj_compress.dir/opj_compress.c.obj 62% Building C object src/bin/jp2/CMakeFiles/opj_compress.dir/convert.c.obj 65% Building C object src/bin/jp2/CMakeFiles/opj_compress.dir/index.c.obj 68% Building C object src/bin/jp2/CMakeFiles/opj_compress.dir/__/common/color.c.obj 71% Building C object src/bin/jp2/CMakeFiles/opj_compress.dir/__/common/opj_getopt.c.obj Linking C executable ……\bin\opj_compress.exe 71% Built target opj_compress Scanning dependencies of target opj_decompress 74% Building C object src/bin/jp2/CMakeFiles/opj_decompress.dir/opj_decompress.c.obj 77% Building C object src/bin/jp2/CMakeFiles/opj_decompress.dir/convert.c.obj 80% Building C object src/bin/jp2/CMakeFiles/opj_decompress.dir/index.c.obj 82% Building C object src/bin/jp2/CMakeFiles/opj_decompress.dir/__/common/color.c.obj 85% Building C object src/bin/jp2/CMakeFiles/opj_decompress.dir/__/common/opj_getopt.c.obj Linking C executable ……\bin\opj_decompress.exe 85% Built target opj_decompress Scanning dependencies of target opj_dump 88% Building C object src/bin/jp2/CMakeFiles/opj_dump.dir/opj_dump.c.obj 91% Building C object src/bin/jp2/CMakeFiles/opj_dump.dir/convert.c.obj 94% Building C object src/bin/jp2/CMakeFiles/opj_dump.dir/index.c.obj 97% Building C object src/bin/jp2/CMakeFiles/opj_dump.dir/__/common/color.c.obj 100% Building C object src/bin/jp2/CMakeFiles/opj_dump.dir/__/common/opj_getopt.c.obj Linking C executable ……\bin\opj_dump.exe 100% Built target opj_dump

安装

然后执行make install ,就会将生成的二进制文件自动复制到前面CMAKE_INSTALL_PREFIX指定的j:/openjpeg-windows-gcc-x86文件夹下，分为bin\include\lib三个子目录。

D:\os.package\cpp\openjpeg\openjpeg-version.2.1.prj>make install 54% Built target openjp2 57% Built target t1_generate_luts 71% Built target opj_compress 85% Built target opj_decompress 100% Built target opj_dump Install the project… – Install configuration: “RELEASE” – Installing: j:/openjpeg-windows-gcc-x86_64/lib/openjpeg-2.1/OpenJPEGTargets.cmake – Installing: j:/openjpeg-windows-gcc-x86_64/lib/openjpeg-2.1/OpenJPEGTargets-release.cmake – Installing: j:/openjpeg-windows-gcc-x86_64/lib/openjpeg-2.1/OpenJPEGConfig.cmake – Installing: j:/openjpeg-windows-gcc-x86_64/include/openjpeg-2.1/opj_config.h – Installing: j:/openjpeg-windows-gcc-x86_64/lib/libopenjp2.a – Installing: j:/openjpeg-windows-gcc-x86_64/include/openjpeg-2.1/openjpeg.h – Installing: j:/openjpeg-windows-gcc-x86_64/include/openjpeg-2.1/opj_stdint.h – Installing: j:/openjpeg-windows-gcc-x86_64/bin/opj_decompress.exe – Installing: j:/openjpeg-windows-gcc-x86_64/bin/opj_compress.exe – Installing: j:/openjpeg-windows-gcc-x86_64/bin/opj_dump.exe

因为我的操作系统是64的，所以生成的目标代码也是64位的,如果要生成32位的目标代码，需要安装32位的编译器就是(mingw32)。

可以去mingw官网下载(mingw-w64-install.exe),下载后运行在设置界面选择i686版本，就是mingw32的版本。