Split the main CMake file.

This will well isolate contributions for original code,
generated code and SIMD (especially for Android).

Change-Id: Ie47664decc7f43c2f57260a72cab951c347281a7
This commit is contained in:
Vincent Rabaud 2016-07-07 20:21:51 +02:00
parent bbb6ecd9b0
commit 6c62841076
3 changed files with 205 additions and 204 deletions

View File

@ -17,210 +17,7 @@ if(NOT CMAKE_BUILD_TYPE)
)
endif()
################################################################################
# Generate the config.h to compile with specific intrinsics / libs.
## Check for compiler options.
include(CheckCSourceCompiles)
check_c_source_compiles("
int main(void) {
(void)__builtin_bswap16(0);
return 0;
}
"
HAVE_BUILTIN_BSWAP16
)
check_c_source_compiles("
int main(void) {
(void)__builtin_bswap32(0);
return 0;
}
"
HAVE_BUILTIN_BSWAP32
)
check_c_source_compiles("
int main(void) {
(void)__builtin_bswap64(0);
return 0;
}
"
HAVE_BUILTIN_BSWAP64
)
## Check for libraries.
find_package(Threads)
if(Threads_FOUND)
if(CMAKE_USE_PTHREADS_INIT)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pthread")
endif()
foreach(PTHREAD_TEST HAVE_PTHREAD_PRIO_INHERIT PTHREAD_CREATE_UNDETACHED)
check_c_source_compiles("
#include <pthread.h>
int main (void) {
int attr = ${PTHREAD_TEST};
return attr;
}
" ${PTHREAD_TEST}
)
endforeach()
list(APPEND WEBP_DEP_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
endif()
set(WEBP_USE_THREAD ${Threads_FOUND})
# TODO: this seems unused, check with autotools.
set(LT_OBJDIR ".libs/")
# Only useful for vwebp, so useless for now.
# find_package(OpenGL)
# set(WEBP_HAVE_GL ${OPENGL_FOUND})
# set(WEBP_DEP_INCLUDE_DIRS ${WEBP_DEP_INCLUDE_DIRS} ${OPENGL_INCLUDE_DIRS})
# set(WEBP_DEP_LIBRARIES ${WEBP_DEP_LIBRARIES} ${OPENGL_LIBRARIES})
# Find the standard C math library.
find_library(MATH_LIBRARY NAMES m)
if(MATH_LIBRARY)
list(APPEND WEBP_DEP_LIBRARIES ${MATH_LIBRARY})
endif()
# Find the standard image libraries.
set(WEBP_DEP_IMG_LIBRARIES)
set(WEBP_DEP_IMG_INCLUDE_DIRS)
foreach(I_LIB PNG JPEG TIFF GIF)
find_package(${I_LIB})
set(WEBP_HAVE_${I_LIB} ${${I_LIB}_FOUND})
if(${I_LIB}_FOUND)
list(APPEND WEBP_DEP_IMG_LIBRARIES ${${I_LIB}_LIBRARIES})
list(APPEND WEBP_DEP_IMG_INCLUDE_DIRS ${${I_LIB}_INCLUDE_DIRS})
endif()
endforeach()
## Check for specific headers.
include(CheckIncludeFiles)
check_include_files("stdlib.h;stdarg.h;string.h;float.h" STDC_HEADERS)
check_include_files(dlfcn.h HAVE_DLFCN_H)
check_include_files(GLUT/glut.h HAVE_GLUT_GLUT_H)
check_include_files(GL/glut.h HAVE_GL_GLUT_H)
check_include_files(inttypes.h HAVE_INTTYPES_H)
check_include_files(memory.h HAVE_MEMORY_H)
check_include_files(OpenGL/glut.h HAVE_OPENGL_GLUT_H)
check_include_files(shlwapi.h HAVE_SHLWAPI_H)
check_include_files(stdint.h HAVE_STDINT_H)
check_include_files(stdlib.h HAVE_STDLIB_H)
check_include_files(strings.h HAVE_STRINGS_H)
check_include_files(string.h HAVE_STRING_H)
check_include_files(sys/stat.h HAVE_SYS_STAT_H)
check_include_files(sys/types.h HAVE_SYS_TYPES_H)
check_include_files(unistd.h HAVE_UNISTD_H)
check_include_files(wincodec.h HAVE_WINCODEC_H)
check_include_files(windows.h HAVE_WINDOWS_H)
# Windows specifics
if(HAVE_WINCODEC_H)
list(APPEND WEBP_DEP_LIBRARIES shlwapi ole32 windowscodecs)
endif()
## Check for SIMD extensions.
set(WEBP_SIMD_FLAGS "SSE2;SSE41;AVX2")
set(WEBP_SIMD_FILE_EXTENSIONS "_sse2.c;_sse41.c;_avx2.c")
if(MSVC)
# MSVC does not have a SSE4 flag but AVX2 support implies
# SSE4 support.
set(SIMD_ENABLE_FLAGS "/arch:SSE2;/arch:AVX2;/arch:AVX2")
set(SIMD_DISABLE_FLAGS)
else()
set(SIMD_ENABLE_FLAGS "-msse2;-msse4.1;-mavx2")
set(SIMD_DISABLE_FLAGS "-mno-sse2;-mno-sse4.1;-mno-avx2")
endif()
set(WEBP_SIMD_FILES_TO_NOT_INCLUDE)
set(WEBP_SIMD_FILES_TO_INCLUDE)
set(WEBP_SIMD_FLAGS_TO_INCLUDE)
list(LENGTH WEBP_SIMD_FLAGS WEBP_SIMD_FLAGS_LENGTH)
math(EXPR WEBP_SIMD_FLAGS_RANGE "${WEBP_SIMD_FLAGS_LENGTH} - 1")
foreach(I_SIMD RANGE ${WEBP_SIMD_FLAGS_RANGE})
list(GET WEBP_SIMD_FLAGS ${I_SIMD} WEBP_SIMD_FLAG)
list(GET SIMD_ENABLE_FLAGS ${I_SIMD} SIMD_COMPILE_FLAG)
set(CMAKE_REQUIRED_FLAGS ${SIMD_COMPILE_FLAG})
check_c_source_compiles("
#include \"${CMAKE_CURRENT_LIST_DIR}/src/dsp/dsp.h\"
int main(void) {
#if !defined(WEBP_USE_${WEBP_SIMD_FLAG})
this is not valid code
#endif
return 0;
}
"
WEBP_HAVE_${WEBP_SIMD_FLAG}
)
# Check which files we should include or not.
list(GET WEBP_SIMD_FILE_EXTENSIONS ${I_SIMD} WEBP_SIMD_FILE_EXTENSION)
file(GLOB SIMD_FILES RELATIVE ${CMAKE_CURRENT_LIST_DIR}
"${CMAKE_CURRENT_SOURCE_DIR}/src/dsp/*${WEBP_SIMD_FILE_EXTENSION}"
)
if(WEBP_HAVE_${WEBP_SIMD_FLAG})
# Memorize the file and flags.
foreach(FILE ${SIMD_FILES})
list(APPEND WEBP_SIMD_FILES_TO_INCLUDE ${FILE})
list(APPEND WEBP_SIMD_FLAGS_TO_INCLUDE ${SIMD_COMPILE_FLAG})
endforeach()
else()
# Remove the file from the list.
foreach(FILE ${SIMD_FILES})
list(APPEND WEBP_SIMD_FILES_NOT_TO_INCLUDE ${FILE})
endforeach()
# Explicitly disable SIMD.
if(SIMD_DISABLE_FLAGS)
list(GET SIMD_DISABLE_FLAGS ${I_SIMD} SIMD_COMPILE_FLAG)
include(CheckCCompilerFlag)
check_c_compiler_flag(${SIMD_COMPILE_FLAG} HAS_COMPILE_FLAG)
if(HAS_COMPILE_FLAG)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${SIMD_COMPILE_FLAG}")
endif()
endif()
endif()
endforeach()
## Define extra info.
set(PACKAGE ${PROJECT_NAME})
set(PACKAGE_NAME ${PROJECT_NAME})
# Read from configure.ac.
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/configure.ac CONFIGURE_AC)
string(REGEX MATCHALL "\\[([0-9a-z\\.:/]*)\\]"
CONFIGURE_AC_PACKAGE_INFO ${CONFIGURE_AC}
)
function(strip_bracket VAR)
string(LENGTH ${${VAR}} TMP_LEN)
math(EXPR TMP_LEN ${TMP_LEN}-2)
string(SUBSTRING ${${VAR}} 1 ${TMP_LEN} TMP_SUB)
set(${VAR} ${TMP_SUB} PARENT_SCOPE)
endfunction()
list(GET CONFIGURE_AC_PACKAGE_INFO 1 PACKAGE_VERSION)
strip_bracket(PACKAGE_VERSION)
list(GET CONFIGURE_AC_PACKAGE_INFO 2 PACKAGE_BUGREPORT)
strip_bracket(PACKAGE_BUGREPORT)
list(GET CONFIGURE_AC_PACKAGE_INFO 3 PACKAGE_URL)
strip_bracket(PACKAGE_URL)
# Build more info.
set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
set(PACKAGE_TARNAME ${PACKAGE_NAME})
set(VERSION ${PACKAGE_VERSION})
## Generate the config.h header.
configure_file(${CMAKE_CURRENT_LIST_DIR}/cmake/config.h.in
${CMAKE_CURRENT_BINARY_DIR}/include/webp/config.h)
add_definitions(-DHAVE_CONFIG_H)
# The webp folder is included as we reference config.h as
# ../webp/config.h or webp/config.h
include_directories(${CMAKE_CURRENT_BINARY_DIR}/include
${CMAKE_CURRENT_BINARY_DIR}/include/webp
)
include(cmake/config.h.cmake)
################################################################################
# WebP source files.

141
cmake/config.h.cmake Normal file
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@ -0,0 +1,141 @@
# Generate the config.h to compile with specific intrinsics / libs.
## Check for compiler options.
include(CheckCSourceCompiles)
check_c_source_compiles("
int main(void) {
(void)__builtin_bswap16(0);
return 0;
}
"
HAVE_BUILTIN_BSWAP16
)
check_c_source_compiles("
int main(void) {
(void)__builtin_bswap32(0);
return 0;
}
"
HAVE_BUILTIN_BSWAP32
)
check_c_source_compiles("
int main(void) {
(void)__builtin_bswap64(0);
return 0;
}
"
HAVE_BUILTIN_BSWAP64
)
## Check for libraries.
find_package(Threads)
if(Threads_FOUND)
if(CMAKE_USE_PTHREADS_INIT)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pthread")
endif()
foreach(PTHREAD_TEST HAVE_PTHREAD_PRIO_INHERIT PTHREAD_CREATE_UNDETACHED)
check_c_source_compiles("
#include <pthread.h>
int main (void) {
int attr = ${PTHREAD_TEST};
return attr;
}
" ${PTHREAD_TEST}
)
endforeach()
list(APPEND WEBP_DEP_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
endif()
set(WEBP_USE_THREAD ${Threads_FOUND})
# TODO: this seems unused, check with autotools.
set(LT_OBJDIR ".libs/")
# Only useful for vwebp, so useless for now.
# find_package(OpenGL)
# set(WEBP_HAVE_GL ${OPENGL_FOUND})
# set(WEBP_DEP_INCLUDE_DIRS ${WEBP_DEP_INCLUDE_DIRS} ${OPENGL_INCLUDE_DIRS})
# set(WEBP_DEP_LIBRARIES ${WEBP_DEP_LIBRARIES} ${OPENGL_LIBRARIES})
# Find the standard C math library.
find_library(MATH_LIBRARY NAMES m)
if(MATH_LIBRARY)
list(APPEND WEBP_DEP_LIBRARIES ${MATH_LIBRARY})
endif()
# Find the standard image libraries.
set(WEBP_DEP_IMG_LIBRARIES)
set(WEBP_DEP_IMG_INCLUDE_DIRS)
foreach(I_LIB PNG JPEG TIFF GIF)
find_package(${I_LIB})
set(WEBP_HAVE_${I_LIB} ${${I_LIB}_FOUND})
if(${I_LIB}_FOUND)
list(APPEND WEBP_DEP_IMG_LIBRARIES ${${I_LIB}_LIBRARIES})
list(APPEND WEBP_DEP_IMG_INCLUDE_DIRS ${${I_LIB}_INCLUDE_DIRS})
endif()
endforeach()
## Check for specific headers.
include(CheckIncludeFiles)
check_include_files("stdlib.h;stdarg.h;string.h;float.h" STDC_HEADERS)
check_include_files(dlfcn.h HAVE_DLFCN_H)
check_include_files(GLUT/glut.h HAVE_GLUT_GLUT_H)
check_include_files(GL/glut.h HAVE_GL_GLUT_H)
check_include_files(inttypes.h HAVE_INTTYPES_H)
check_include_files(memory.h HAVE_MEMORY_H)
check_include_files(OpenGL/glut.h HAVE_OPENGL_GLUT_H)
check_include_files(shlwapi.h HAVE_SHLWAPI_H)
check_include_files(stdint.h HAVE_STDINT_H)
check_include_files(stdlib.h HAVE_STDLIB_H)
check_include_files(strings.h HAVE_STRINGS_H)
check_include_files(string.h HAVE_STRING_H)
check_include_files(sys/stat.h HAVE_SYS_STAT_H)
check_include_files(sys/types.h HAVE_SYS_TYPES_H)
check_include_files(unistd.h HAVE_UNISTD_H)
check_include_files(wincodec.h HAVE_WINCODEC_H)
check_include_files(windows.h HAVE_WINDOWS_H)
# Windows specifics
if(HAVE_WINCODEC_H)
list(APPEND WEBP_DEP_LIBRARIES shlwapi ole32 windowscodecs)
endif()
## Check for SIMD extensions.
include(${CMAKE_CURRENT_LIST_DIR}/cpu.cmake)
## Define extra info.
set(PACKAGE ${PROJECT_NAME})
set(PACKAGE_NAME ${PROJECT_NAME})
# Read from configure.ac.
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/configure.ac CONFIGURE_AC)
string(REGEX MATCHALL "\\[([0-9a-z\\.:/]*)\\]"
CONFIGURE_AC_PACKAGE_INFO ${CONFIGURE_AC}
)
function(strip_bracket VAR)
string(LENGTH ${${VAR}} TMP_LEN)
math(EXPR TMP_LEN ${TMP_LEN}-2)
string(SUBSTRING ${${VAR}} 1 ${TMP_LEN} TMP_SUB)
set(${VAR} ${TMP_SUB} PARENT_SCOPE)
endfunction()
list(GET CONFIGURE_AC_PACKAGE_INFO 1 PACKAGE_VERSION)
strip_bracket(PACKAGE_VERSION)
list(GET CONFIGURE_AC_PACKAGE_INFO 2 PACKAGE_BUGREPORT)
strip_bracket(PACKAGE_BUGREPORT)
list(GET CONFIGURE_AC_PACKAGE_INFO 3 PACKAGE_URL)
strip_bracket(PACKAGE_URL)
# Build more info.
set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
set(PACKAGE_TARNAME ${PACKAGE_NAME})
set(VERSION ${PACKAGE_VERSION})
## Generate the config.h header.
configure_file(${CMAKE_CURRENT_LIST_DIR}/config.h.in
${CMAKE_CURRENT_BINARY_DIR}/include/webp/config.h)
add_definitions(-DHAVE_CONFIG_H)
# The webp folder is included as we reference config.h as
# ../webp/config.h or webp/config.h
include_directories(${CMAKE_CURRENT_BINARY_DIR}/include
${CMAKE_CURRENT_BINARY_DIR}/include/webp
)

63
cmake/cpu.cmake Normal file
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@ -0,0 +1,63 @@
## Check for SIMD extensions.
set(WEBP_SIMD_FLAGS "SSE2;SSE41;AVX2")
set(WEBP_SIMD_FILE_EXTENSIONS "_sse2.c;_sse41.c;_avx2.c")
if(MSVC)
# MSVC does not have a SSE4 flag but AVX2 support implies
# SSE4 support.
set(SIMD_ENABLE_FLAGS "/arch:SSE2;/arch:AVX2;/arch:AVX2")
set(SIMD_DISABLE_FLAGS)
else()
set(SIMD_ENABLE_FLAGS "-msse2;-msse4.1;-mavx2")
set(SIMD_DISABLE_FLAGS "-mno-sse2;-mno-sse4.1;-mno-avx2")
endif()
set(WEBP_SIMD_FILES_TO_NOT_INCLUDE)
set(WEBP_SIMD_FILES_TO_INCLUDE)
set(WEBP_SIMD_FLAGS_TO_INCLUDE)
list(LENGTH WEBP_SIMD_FLAGS WEBP_SIMD_FLAGS_LENGTH)
math(EXPR WEBP_SIMD_FLAGS_RANGE "${WEBP_SIMD_FLAGS_LENGTH} - 1")
foreach(I_SIMD RANGE ${WEBP_SIMD_FLAGS_RANGE})
list(GET WEBP_SIMD_FLAGS ${I_SIMD} WEBP_SIMD_FLAG)
list(GET SIMD_ENABLE_FLAGS ${I_SIMD} SIMD_COMPILE_FLAG)
set(CMAKE_REQUIRED_FLAGS ${SIMD_COMPILE_FLAG})
check_c_source_compiles("
#include \"${CMAKE_CURRENT_LIST_DIR}/../src/dsp/dsp.h\"
int main(void) {
#if !defined(WEBP_USE_${WEBP_SIMD_FLAG})
this is not valid code
#endif
return 0;
}
"
WEBP_HAVE_${WEBP_SIMD_FLAG}
)
# Check which files we should include or not.
list(GET WEBP_SIMD_FILE_EXTENSIONS ${I_SIMD} WEBP_SIMD_FILE_EXTENSION)
file(GLOB SIMD_FILES "${CMAKE_CURRENT_LIST_DIR}/../"
"src/dsp/*${WEBP_SIMD_FILE_EXTENSION}"
)
if(WEBP_HAVE_${WEBP_SIMD_FLAG})
# Memorize the file and flags.
foreach(FILE ${SIMD_FILES})
list(APPEND WEBP_SIMD_FILES_TO_INCLUDE ${FILE})
list(APPEND WEBP_SIMD_FLAGS_TO_INCLUDE ${SIMD_COMPILE_FLAG})
endforeach()
else()
# Remove the file from the list.
foreach(FILE ${SIMD_FILES})
list(APPEND WEBP_SIMD_FILES_NOT_TO_INCLUDE ${FILE})
endforeach()
# Explicitly disable SIMD.
if(SIMD_DISABLE_FLAGS)
list(GET SIMD_DISABLE_FLAGS ${I_SIMD} SIMD_COMPILE_FLAG)
include(CheckCCompilerFlag)
check_c_compiler_flag(${SIMD_COMPILE_FLAG} HAS_COMPILE_FLAG)
if(HAS_COMPILE_FLAG)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${SIMD_COMPILE_FLAG}")
endif()
endif()
endif()
endforeach()