6c62841076
This will well isolate contributions for original code, generated code and SIMD (especially for Android). Change-Id: Ie47664decc7f43c2f57260a72cab951c347281a7
142 lines
4.1 KiB
CMake
142 lines
4.1 KiB
CMake
# Generate the config.h to compile with specific intrinsics / libs.
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## Check for compiler options.
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include(CheckCSourceCompiles)
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check_c_source_compiles("
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int main(void) {
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(void)__builtin_bswap16(0);
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return 0;
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}
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"
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HAVE_BUILTIN_BSWAP16
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)
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check_c_source_compiles("
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int main(void) {
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(void)__builtin_bswap32(0);
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return 0;
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}
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"
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HAVE_BUILTIN_BSWAP32
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)
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check_c_source_compiles("
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int main(void) {
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(void)__builtin_bswap64(0);
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return 0;
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}
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"
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HAVE_BUILTIN_BSWAP64
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)
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## Check for libraries.
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find_package(Threads)
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if(Threads_FOUND)
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if(CMAKE_USE_PTHREADS_INIT)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pthread")
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endif()
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foreach(PTHREAD_TEST HAVE_PTHREAD_PRIO_INHERIT PTHREAD_CREATE_UNDETACHED)
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check_c_source_compiles("
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#include <pthread.h>
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int main (void) {
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int attr = ${PTHREAD_TEST};
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return attr;
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}
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" ${PTHREAD_TEST}
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)
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endforeach()
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list(APPEND WEBP_DEP_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
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endif()
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set(WEBP_USE_THREAD ${Threads_FOUND})
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# TODO: this seems unused, check with autotools.
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set(LT_OBJDIR ".libs/")
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# Only useful for vwebp, so useless for now.
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# find_package(OpenGL)
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# set(WEBP_HAVE_GL ${OPENGL_FOUND})
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# set(WEBP_DEP_INCLUDE_DIRS ${WEBP_DEP_INCLUDE_DIRS} ${OPENGL_INCLUDE_DIRS})
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# set(WEBP_DEP_LIBRARIES ${WEBP_DEP_LIBRARIES} ${OPENGL_LIBRARIES})
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# Find the standard C math library.
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find_library(MATH_LIBRARY NAMES m)
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if(MATH_LIBRARY)
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list(APPEND WEBP_DEP_LIBRARIES ${MATH_LIBRARY})
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endif()
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# Find the standard image libraries.
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set(WEBP_DEP_IMG_LIBRARIES)
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set(WEBP_DEP_IMG_INCLUDE_DIRS)
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foreach(I_LIB PNG JPEG TIFF GIF)
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find_package(${I_LIB})
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set(WEBP_HAVE_${I_LIB} ${${I_LIB}_FOUND})
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if(${I_LIB}_FOUND)
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list(APPEND WEBP_DEP_IMG_LIBRARIES ${${I_LIB}_LIBRARIES})
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list(APPEND WEBP_DEP_IMG_INCLUDE_DIRS ${${I_LIB}_INCLUDE_DIRS})
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endif()
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endforeach()
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## Check for specific headers.
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include(CheckIncludeFiles)
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check_include_files("stdlib.h;stdarg.h;string.h;float.h" STDC_HEADERS)
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check_include_files(dlfcn.h HAVE_DLFCN_H)
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check_include_files(GLUT/glut.h HAVE_GLUT_GLUT_H)
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check_include_files(GL/glut.h HAVE_GL_GLUT_H)
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check_include_files(inttypes.h HAVE_INTTYPES_H)
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check_include_files(memory.h HAVE_MEMORY_H)
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check_include_files(OpenGL/glut.h HAVE_OPENGL_GLUT_H)
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check_include_files(shlwapi.h HAVE_SHLWAPI_H)
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check_include_files(stdint.h HAVE_STDINT_H)
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check_include_files(stdlib.h HAVE_STDLIB_H)
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check_include_files(strings.h HAVE_STRINGS_H)
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check_include_files(string.h HAVE_STRING_H)
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check_include_files(sys/stat.h HAVE_SYS_STAT_H)
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check_include_files(sys/types.h HAVE_SYS_TYPES_H)
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check_include_files(unistd.h HAVE_UNISTD_H)
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check_include_files(wincodec.h HAVE_WINCODEC_H)
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check_include_files(windows.h HAVE_WINDOWS_H)
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# Windows specifics
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if(HAVE_WINCODEC_H)
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list(APPEND WEBP_DEP_LIBRARIES shlwapi ole32 windowscodecs)
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endif()
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## Check for SIMD extensions.
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include(${CMAKE_CURRENT_LIST_DIR}/cpu.cmake)
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## Define extra info.
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set(PACKAGE ${PROJECT_NAME})
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set(PACKAGE_NAME ${PROJECT_NAME})
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# Read from configure.ac.
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file(READ ${CMAKE_CURRENT_SOURCE_DIR}/configure.ac CONFIGURE_AC)
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string(REGEX MATCHALL "\\[([0-9a-z\\.:/]*)\\]"
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CONFIGURE_AC_PACKAGE_INFO ${CONFIGURE_AC}
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)
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function(strip_bracket VAR)
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string(LENGTH ${${VAR}} TMP_LEN)
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math(EXPR TMP_LEN ${TMP_LEN}-2)
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string(SUBSTRING ${${VAR}} 1 ${TMP_LEN} TMP_SUB)
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set(${VAR} ${TMP_SUB} PARENT_SCOPE)
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endfunction()
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list(GET CONFIGURE_AC_PACKAGE_INFO 1 PACKAGE_VERSION)
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strip_bracket(PACKAGE_VERSION)
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list(GET CONFIGURE_AC_PACKAGE_INFO 2 PACKAGE_BUGREPORT)
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strip_bracket(PACKAGE_BUGREPORT)
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list(GET CONFIGURE_AC_PACKAGE_INFO 3 PACKAGE_URL)
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strip_bracket(PACKAGE_URL)
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# Build more info.
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set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
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set(PACKAGE_TARNAME ${PACKAGE_NAME})
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set(VERSION ${PACKAGE_VERSION})
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## Generate the config.h header.
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configure_file(${CMAKE_CURRENT_LIST_DIR}/config.h.in
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${CMAKE_CURRENT_BINARY_DIR}/include/webp/config.h)
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add_definitions(-DHAVE_CONFIG_H)
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# The webp folder is included as we reference config.h as
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# ../webp/config.h or webp/config.h
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include_directories(${CMAKE_CURRENT_BINARY_DIR}/include
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${CMAKE_CURRENT_BINARY_DIR}/include/webp
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)
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