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Add a CMakeLists.txt

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The goal is not to replace our autotools configuration, but to
provide a minimal CMake file that can build the lib, cwebp and
dwebp.

Change-Id: I3be343bd698d118c5f00172449d232d87e868f23
This commit is contained in:
Vincent Rabaud 2015-12-21 15:35:13 +01:00
parent 6c1d763119
commit 3661b98069
4 changed files with 496 additions and 0 deletions
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3
.gitignore vendored
View File

@ -31,3 +31,6 @@ src/webp/stamp-h1
*.pdb
/iosbuild
/WebP.framework
CMakeCache.txt
CMakeFiles/
cmake_install.cmake

323
CMakeLists.txt Normal file
View File

@ -0,0 +1,323 @@
cmake_minimum_required(VERSION 2.8.7)
project(libwebp C)
# Options for coder / decoder executables.
option(WEBP_BUILD_CWEBP "Build the cwebp command line tool." OFF)
option(WEBP_BUILD_DWEBP "Build the dwebp command line tool." OFF)
option(WEBP_EXPERIMENTAL_FEATURES "Build with experimental features." OFF)
option(WEBP_FORCE_ALIGNED "Force aligned memory operations." OFF)
set(WEBP_DEP_LIBRARIES)
set(WEBP_DEP_INCLUDE_DIRS)
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE "Release" CACHE
"Build type: Release, Debug or RelWithDebInfo" STRING FORCE
)
endif()
################################################################################
# Generate the config.h to compile with specific intrinsics / libs.
## Check for compiler options.
include(CheckCSourceCompiles)
check_c_source_compiles("
int main(void) {
__builtin_bswap16(0);
return 0;
}
"
HAVE_BUILTIN_BSWAP16
)
check_c_source_compiles("
int main(void) {
__builtin_bswap32(0);
return 0;
}
"
HAVE_BUILTIN_BSWAP32
)
check_c_source_compiles("
int main(void) {
__builtin_bswap64(0);
return 0;
}
"
HAVE_BUILTIN_BSWAP64
)
## Check for libraries.
find_package(Threads)
if(Threads_FOUND)
if(CMAKE_USE_PTHREADS_INIT)
list(APPEND 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)
list(APPEND 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
)
################################################################################
# WebP source files.
# Read the Makefile.am to get the source files.
set(WEBP_SRCS)
function(parse_Makefile_am FOLDER WEBP_SRCS)
file(READ ${FOLDER}/Makefile.am MAKEFILE_AM)
string(REGEX MATCHALL "_SOURCES \\+= [^\n]*"
FILES_PER_LINE ${MAKEFILE_AM}
)
set(SRCS ${WEBP_SRCS})
foreach(FILES ${FILES_PER_LINE})
string(SUBSTRING ${FILES} 12 -1 FILES)
string(REGEX MATCHALL "[0-9a-z\\._]+"
FILES ${FILES}
)
foreach(FILE ${FILES})
list(APPEND SRCS ${FOLDER}/${FILE})
endforeach()
endforeach()
set(WEBP_SRCS ${SRCS} PARENT_SCOPE)
endfunction()
parse_Makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/src/dec "${WEBP_SRCS}")
parse_Makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/src/demux "${WEBP_SRCS}")
parse_Makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/src/dsp "${WEBP_SRCS}")
parse_Makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/src/enc "${WEBP_SRCS}")
parse_Makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/src/utils "${WEBP_SRCS}")
# Remove the files specific to SIMD we don't user.
foreach(FILE ${WEBP_SIMD_FILES_NOT_TO_INCLUDE})
list(REMOVE_ITEM WEBP_SRCS ${FILE})
endforeach()
# Build the library.
add_definitions(-Wall)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/src/ ${WEBP_DEP_INCLUDE_DIRS})
add_library(webp ${WEBP_SRCS})
target_link_libraries(webp ${WEBP_DEP_LIBRARIES})
# Change the compile flags for SIMD files we use.
list(LENGTH WEBP_SIMD_FILES_TO_INCLUDE WEBP_SIMD_FILES_TO_INCLUDE_LENGTH)
math(EXPR WEBP_SIMD_FILES_TO_INCLUDE_RANGE
"${WEBP_SIMD_FILES_TO_INCLUDE_LENGTH}-1"
)
foreach(I_FILE RANGE ${WEBP_SIMD_FILES_TO_INCLUDE_RANGE})
list(GET WEBP_SIMD_FILES_TO_INCLUDE ${I_FILE} FILE)
list(GET WEBP_SIMD_FLAGS_TO_INCLUDE ${I_FILE} SIMD_COMPILE_FLAG)
set_source_files_properties(${FILE} PROPERTIES
COMPILE_FLAGS ${SIMD_COMPILE_FLAG}
)
endforeach()
# Build the executables if asked for.
if(WEBP_BUILD_CWEBP OR WEBP_BUILD_DWEBP)
# Example utility library.
set(exampleutil_SRCS
${CMAKE_CURRENT_SOURCE_DIR}/examples/example_util.c
${CMAKE_CURRENT_SOURCE_DIR}/examples/example_util.h
${CMAKE_CURRENT_SOURCE_DIR}/examples/stopwatch.h)
add_library(exampleutil ${exampleutil_SRCS})
target_link_libraries(exampleutil webp ${WEBP_DEP_LIBRARIES})
endif()
if(WEBP_BUILD_DWEBP)
# dwebp
include_directories(${WEBP_DEP_IMG_INCLUDE_DIRS})
add_executable(dwebp
${CMAKE_CURRENT_SOURCE_DIR}/examples/dwebp.c
${CMAKE_CURRENT_SOURCE_DIR}/examples/stopwatch.h
)
target_link_libraries(dwebp webp exampleutil ${WEBP_DEP_LIBRARIES}
${WEBP_DEP_IMG_LIBRARIES}
)
endif()
if(WEBP_BUILD_CWEBP)
# cwebp
include_directories(${WEBP_DEP_IMG_INCLUDE_DIRS})
add_executable(cwebp
${CMAKE_CURRENT_SOURCE_DIR}/examples/cwebp.c
${CMAKE_CURRENT_SOURCE_DIR}/examples/metadata.c
${CMAKE_CURRENT_SOURCE_DIR}/examples/metadata.h
${CMAKE_CURRENT_SOURCE_DIR}/examples/stopwatch.h
${CMAKE_CURRENT_SOURCE_DIR}/examples/jpegdec.c
${CMAKE_CURRENT_SOURCE_DIR}/examples/jpegdec.h
${CMAKE_CURRENT_SOURCE_DIR}/examples/pngdec.c
${CMAKE_CURRENT_SOURCE_DIR}/examples/pngdec.h
${CMAKE_CURRENT_SOURCE_DIR}/examples/tiffdec.c
${CMAKE_CURRENT_SOURCE_DIR}/examples/tiffdec.h
${CMAKE_CURRENT_SOURCE_DIR}/examples/webpdec.c
${CMAKE_CURRENT_SOURCE_DIR}/examples/webpdec.h
${CMAKE_CURRENT_SOURCE_DIR}/examples/wicdec.c
${CMAKE_CURRENT_SOURCE_DIR}/examples/wicdec.h)
target_link_libraries(cwebp webp exampleutil ${WEBP_DEP_LIBRARIES}
${WEBP_DEP_IMG_LIBRARIES}
)
endif()

24
README
View File

@ -84,6 +84,30 @@ be installed independently using a minor modification in the corresponding
Makefile.am configure files (see comments there). See './configure --help' for
more options.
CMake:
------
The support for CMake is minimal: it only helps you compile libwebp, cwebp and
dwebp.
Prerequisites:
A compiler (e.g., gcc with autotools) and CMake.
On a Debian-like system the following should install everything you need for a
minimal build:
$ sudo apt-get install build-essential cmake
When building from git sources, you will need to run cmake to generate the
configure script.
mkdir build && cd build && cmake ../
make
make install
If you also want cwebp or dwebp, you will need to enable them through CMake:
cmake -DWEBP_BUILD_CWEBP=ON -DWEBP_BUILD_DWEBP=ON ../
or through your favorite interface (like ccmake or cmake-qt-gui).
SWIG bindings:
--------------

146
cmake/config.h.in Normal file
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@ -0,0 +1,146 @@
/* Adapted from the autotools src/webp/config.h.in. */
/* Define if building universal (internal helper macro) */
/* TODO: handle properly in CMake */
#cmakedefine AC_APPLE_UNIVERSAL_BUILD 1
/* Set to 1 if __builtin_bswap16 is available */
#cmakedefine HAVE_BUILTIN_BSWAP16 1
/* Set to 1 if __builtin_bswap32 is available */
#cmakedefine HAVE_BUILTIN_BSWAP32 1
/* Set to 1 if __builtin_bswap64 is available */
#cmakedefine HAVE_BUILTIN_BSWAP64 1
/* Define to 1 if you have the <dlfcn.h> header file. */
#cmakedefine HAVE_DLFCN_H 1
/* Define to 1 if you have the <GLUT/glut.h> header file. */
#cmakedefine HAVE_GLUT_GLUT_H 1
/* Define to 1 if you have the <GL/glut.h> header file. */
#cmakedefine HAVE_GL_GLUT_H 1
/* Define to 1 if you have the <inttypes.h> header file. */
#cmakedefine HAVE_INTTYPES_H 1
/* Define to 1 if you have the <memory.h> header file. */
#cmakedefine HAVE_MEMORY_H 1
/* Define to 1 if you have the <OpenGL/glut.h> header file. */
#cmakedefine HAVE_OPENGL_GLUT_H 1
/* Have PTHREAD_PRIO_INHERIT. */
#cmakedefine HAVE_PTHREAD_PRIO_INHERIT @HAVE_PTHREAD_PRIO_INHERIT@
/* Define to 1 if you have the <shlwapi.h> header file. */
#cmakedefine HAVE_SHLWAPI_H 1
/* Define to 1 if you have the <stdint.h> header file. */
#cmakedefine HAVE_STDINT_H 1
/* Define to 1 if you have the <stdlib.h> header file. */
#cmakedefine HAVE_STDLIB_H 1
/* Define to 1 if you have the <strings.h> header file. */
#cmakedefine HAVE_STRINGS_H 1
/* Define to 1 if you have the <string.h> header file. */
#cmakedefine HAVE_STRING_H 1
/* Define to 1 if you have the <sys/stat.h> header file. */
#cmakedefine HAVE_SYS_STAT_H 1
/* Define to 1 if you have the <sys/types.h> header file. */
#cmakedefine HAVE_SYS_TYPES_H 1
/* Define to 1 if you have the <unistd.h> header file. */
#cmakedefine HAVE_UNISTD_H 1
/* Define to 1 if you have the <wincodec.h> header file. */
#cmakedefine HAVE_WINCODEC_H 1
/* Define to 1 if you have the <windows.h> header file. */
#cmakedefine HAVE_WINDOWS_H 1
/* Define to the sub-directory in which libtool stores uninstalled libraries.
*/
/* TODO: handle properly in CMake */
#cmakedefine LT_OBJDIR "@LT_OBJDIR@"
/* Name of package */
#cmakedefine PACKAGE "@PROJECT_NAME@"
/* Define to the address where bug reports for this package should be sent. */
#cmakedefine PACKAGE_BUGREPORT "@PACKAGE_BUGREPORT@"
/* Define to the full name of this package. */
#cmakedefine PACKAGE_NAME "@PACKAGE_NAME@"
/* Define to the full name and version of this package. */
#cmakedefine PACKAGE_STRING "@PACKAGE_STRING@"
/* Define to the one symbol short name of this package. */
#cmakedefine PACKAGE_TARNAME "@PACKAGE_TARNAME@"
/* Define to the home page for this package. */
#cmakedefine PACKAGE_URL "@PACKAGE_URL@"
/* Define to the version of this package. */
#cmakedefine PACKAGE_VERSION "@PACKAGE_VERSION@"
/* Define to necessary symbol if this constant uses a non-standard name on
your system. */
#cmakedefine PTHREAD_CREATE_JOINABLE 1
/* Define to 1 if you have the ANSI C header files. */
#cmakedefine STDC_HEADERS 1
/* Version number of package */
#cmakedefine VERSION "@VERSION@"
/* Enable experimental code */
#cmakedefine WEBP_EXPERIMENTAL_FEATURES 1
/* Define to 1 to force aligned memory operations */
#cmakedefine WEBP_FORCE_ALIGNED 1
/* Set to 1 if AVX2 is supported */
#cmakedefine WEBP_HAVE_AVX2 1
/* Set to 1 if GIF library is installed */
#cmakedefine WEBP_HAVE_GIF 1
/* Set to 1 if OpenGL is supported */
#cmakedefine WEBP_HAVE_GL 1
/* Set to 1 if JPEG library is installed */
#cmakedefine WEBP_HAVE_JPEG 1
/* Set to 1 if PNG library is installed */
#cmakedefine WEBP_HAVE_PNG 1
/* Set to 1 if SSE2 is supported */
#cmakedefine WEBP_HAVE_SSE2 1
/* Set to 1 if SSE4.1 is supported */
#cmakedefine WEBP_HAVE_SSE41 1
/* Set to 1 if TIFF library is installed */
#cmakedefine WEBP_HAVE_TIFF 1
/* Undefine this to disable thread support. */
#cmakedefine WEBP_USE_THREAD 1
/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
significant byte first (like Motorola and SPARC, unlike Intel). */
#if defined AC_APPLE_UNIVERSAL_BUILD
# if defined __BIG_ENDIAN__
# define WORDS_BIGENDIAN 1
# endif
#else
# ifndef WORDS_BIGENDIAN
# undef WORDS_BIGENDIAN
# endif
#endif